Spring-loaded suspension for sound-insulation elements

FIELD: construction, road engineering.

SUBSTANCE: invention is related to device for suspension of sound-insulation elements. Spring-loaded suspension comprises spring (6) and two fixtures (5, 7) for spring. One fixture (7) for spring is fixed on device (8) for suspension. Spring (6) is screwed onto first fixture (7). The second fixture (5) for spring is fixed on opening of sound-insulation element (3) by means of pressing disks (2, 4) and is screwed in spring (6) so that around 3 turns of spring (6) are left free. Spring (6) is made with rigidity that makes from 15000 N/m to 25000 N/m. Sound-insulation wall consists of bearing structure socle and spring-loaded suspensions. Sound-insulation elements of wall are fixed by means of spring-loaded suspension.

EFFECT: creation of frameless structure able to introduce efforts from all directions through fixing device into bearing structure.

2 cl, 1 dwg

 

The present invention relates to a device for hanging acoustic elements. Sound insulating elements are fixed by means of a device for hanging on a supporting structure and form, together with the bearing structure and, possibly, plinth sound-proof wall.

Sound elements can be manufactured, for example, of single-pane safety glass (ESG), laminated safety glass (VSG), plastics, such as, for example, polyvinyl chloride (PVC) or recycled polyvinyl chloride, from multi-layer materials, such as, for example, laminates of aluminum and PVC.

Sound elements can be made in the form of sound-absorbing or sound-reflecting materials. To this end sound elements can also be filled with sound-absorbing materials. Sound elements can be made in both transparent and translucent, and opaque elements. Transparent sound-insulating elements may consist, for example, of cast or obtained by extrusion of organic glass on the basis of polymethylmethacrylate. Organic glass on the basis of polymethylmethacrylate can also be painted and labeled against the flight of birds or amplifying elements.

As the e of the material for acoustic insulation elements can also be used along with polymethylmethacrylate all suitable transparent, translucent or opaque plastic material, such as, for example, polycarbonate (PC) or polyethylene terephthalate (PET).

Noise elements made of organic glass on the basis of polymethylmethacrylate entered in the trade by the company Röhm GmbH & Co. KG under the name PLEXIGLAS®-Soundstop.

Increasingly, there is a requirement frameless suspension for transparent sound elements of acrylic glass plates. Such a suspension, referred to in the following text point suspension, gives new opportunities for the design and simultaneously solves a large number of static, dynamic and functional tasks. Many of these problems are not solved usual spot pendants, such as, for example, pendants, used for fastening glass.

The level of technology

Currently on the market there is the mount point for the wood-based elements, each of which consists of two hinges. It can be swivel hinges or ball joints. The degree of freedom hinge are respectively in the direction of the load adjacent the hinge. The result is a situation in which only one part of the hinge can take the load in a certain direction. Thereby it turns out unbalanced load on pletovy elements and the bottom design. The dimensions of the point of suspension must SEL the army so to bear this static and dynamic load. This means that the construction details are disproportionately large. Since in practice this is not acceptable, is still the main component of the weight force took on a linear bearing.

Hard mounts are elegant and cheap mount of wood-based elements. However, they are applicable only in very few cases, and with a slight temperature fluctuations, i.e. in areas with artificial climate. The biggest problem is thermal expansion, which is based on the law of Hooke (σ=E*ε) often causes unacceptable stresses in Platova element or at the bottom of the structure.

When developing transparent sound-proof walls revealed a tendency for a frameless suspension. These architectural projects require almost exclusively point suspension sound elements.

The mount point for the soundproofing elements are described, for example, in EP 0908563. This document describes a segment of the sound insulating wall is provided with at least one means for fastening the insulation plate on a support, characterized in that the oven set point of the hinge so that the fastening means can accompany the resulting under load resulting line of bending of the plate.

Means mounting suppose the equipment is fixed at one end on a support anchor bolt, which the other end passes through provided in the plate opening and through at least one of the disk elements arranged on both sides of the outer surfaces of the plate, in close contiguity to him, and in the hole is an elastic spring element, the height of which is greater than the thickness to be fixing plate, and the bolt in the disk elements mounted in the ball socket.

From DE-U 8524319.1, respectively, EP-A-0213521 known about corresponding the above-mentioned supports jumper glazing for buildings acoustic insulation of walls containing large sheets of transparent plastic between the vertical posts. Instead of I-beams in these systems can also be used rectangular pipe with sizes corresponding to the sizes of I-beams. Separate plates are superimposed at a distance from each other on one of the side surfaces of the rectangular tube and through the clamping bar and the appropriate number of screws pressed through the gap between the individual plates to the rectangular tube. This design has sufficient resistance against the wind, however, requires for its implementation a relatively wide rectangular pipes.

These obstacles are removed, for example, in EP-A-0530512. This document discloses a system of plates, the cat is Roy plastic sheets laid not on the distance to the intersection or mainly outside surface of the beam overlap, but, partly overlapping each other, fastened to a beam and to each other via a through-fastening element in the area of mutual overlap, and a support surface on the beam. Due to this, the necessary width of the beam can be reduced approximately by half without compromising stability. Although this creates more favorable optical impression, in particular, for wall systems and especially for transparent sound-proof walls, as the beams are slender and doesn't produce as before, clumsy impression, however, is known from EP-A-0530512 equipment is still necessary to provide a relatively small distance between the posts is about 2 m, and guides for the plates along the entire height up to 3 meters

Statement of the problem

The basis of the invention was used to develop frameless suspension for sound-proof walls of the plates of organic (based on polymethylmethacrylate) glass and other sound elements. Another objective is to develop a device for mounting a sound-proof wall made of organic (based on polymethylmethacrylate) glass, which allows you to enter effort from all directions through the device for fastening the load-bearing structure. This mount also should be able to perceive thermal elongation.

The device kriplani who should also be simple and cheap in manufacture and installation.

To prevent phenomena rocking when changing dynamic loads (wind loads) natural frequency of the system consisting of the soundproofing element, devices for hanging and mounting and supporting structure must be more than 0.5 Hz.

The main requirement is the perception of the loads in all directions, and it is necessary that the load is evenly distributed on all perceive the load points. Hence, the need for high flexibility of mounting points.

In addition, the surface must be optically detectable only attachment point. Additional fishing pressure relief devices, for example, in the form of steel ropes are perceived mostly as undesirable optical interference.

The solution of the problem

Underlying the invention the task is solved by the device according to claim 1 of the claims.

This device includes a spring-loaded suspension system for acoustical elements of organic (based on polymethylmethacrylate) glass, for example of the coil spring (6), screwed on the threaded fastening element for the spring (Figure 1, 5, 7).

This results in a reliable fixation of the coil spring without the possibility of bias (Figure 1, pos.6), and in case of breakdown of zvukot the air element in the result of outside influence small parts with high kinetic energy does not fly uncontrollably in different directions. This effect has the consequence that individual fishing safety device in the form of optically interfering steel rope becomes superfluous.

Other elements of the spring suspension for the soundproofing elements are fastened to the supporting structure bearing elements (Figure 1, item 8). The bearing elements can be marked as transoms and are located in the statically required amount on the calculated distances from one another on the support structure.

Using screw (9) the first part of the fastening element (7) for the spring clip on the device (8) for hanging. The first part of the fastening element (7) for the spring may be secured to the device (8) for suspension by known methods of fastening, such as by welding, riveting, fixture, clamping or gluing.

Fastening elements (7 and 5) for the springs represent the two parts and have such dimensions that about 3-5 turns of the spring (6) remain free. Loose coils of the coil spring to provide an elastic suspension sound elements.

Fastening elements (7, 5) for the spring have on their outer side of the grooves, in which the spring includes both geometric and force closure.

Fastening elements (7, 5) springs are made, for example, of steel, toughened glass is alocrom plastics or plastics.

Spring (6) is made, for example, made of steel wire. In addition, the spring may be made of plastic, such as polypropylene or polyethylene, rubber, wood, aluminum, stainless steel or mineral materials, metallic alloys, such as brass, bronze or cast steel.

Spring can also be carried out in the form of a rod of a spring of suitable materials, above.

The spring stiffness in the longitudinal direction is, for example, within approximately 10000 N/m to 25000 N/m spring Stiffness in the transverse direction is, for example, ranging from 50000 N/m to 10000 N/m, the spring elements can be made so that they are not linear characteristic curve according to Hooke's law, and the progressive characteristic curve. Spiral springs this is achieved by the conical winding or by using variable pitch springs.

The proposed suspension can also be used for fastening of facade elements and linings of the above materials.

The position of the fastening element in the space does not affect his work. Perhaps as a ceiling mount and floor mount or horizontal mounting. Can be mounted both straight and curved elements.

Example 1

Test ptpro yennai suspension for acoustic insulation elements made of organic (based on polymethylmethacrylate) glass using breaking load

Slab of organic (based on polymethylmethacrylate) glass type

PLEXIGLAS®-Soundstop with dimensions 2000×2000×15 mm (length × width × thickness) was put to the test variable destructive load in accordance with the European standard EN 1794-2 (April 2003).

Were exposed in the test element as a whole (acoustic elements and proposed in the invention of the suspension). The spring stiffness was 19 000 N/m

The diameter of the holes in the acoustic element (fixing hole) was 65 mm On the outer side of the plate this mounting hole is further provided with another bore diameter of 80 mm and a depth of 3 mm.

The results of the test

None of the points of suspension are not behind polymetylmetacrylate plate. From the holes for suspension points in polymetylmetacrylate plate does not depart any line of destruction.

Spring is deformed plastically, without causing damage or cracks. Plastic deformation of the springs has contributed significantly to the reduction of the summed energy of the blow.

In any case, the fastening element (1, 5, 7) for the spring did not come off the springs (6).

Evaluation of the results

Proposed in the invention pendant suitable as fishing pressure relief devices for collapsed slabs of organic (based polymethylmethacrylat is a) glass.

The list of items in the text and figure 1)

1 screw DIN 7991

2 the clamping disk I

3 sound insulation element, PLEXIGLAS®-Soundstop

4 the clamping disc II

5, the fastening element I for the spring

6 spring

7 fastening element II for the spring

8 a device for hanging

9 screw DIN 933.

1. Spring-loaded suspension for the soundproofing elements containing the spring (6) and two of the fastening element (5, 7) for spring, and one fastening element (7) for the spring attached to the device (8) for hanging, and the second fastening element (5) for the spring fixed on the sound element, characterized in that the spring (6) is screwed to the first fastening element (7), and the second fastening element (5) for the spring is fixed in the hole of the sound insulation element (3) by means of clamping disks (2, 4) and screwed in the spring (6) so that is still free for about 3 turns of the spring (6), spring (6) is made with a stiffness component from 15000 to 25000 N/m

2. Sound-proof wall, consisting of a base of the supporting structure and spring suspensions, wherein the sound insulating wall elements attached through a spring suspension according to claim 1.



 

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FIELD: mechanics.

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Combined spring // 2346194

FIELD: mechanical engineering.

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FIELD: construction.

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FIELD: construction.

SUBSTANCE: invention deals with manufacture of boards of acrylate glass used as elements of acoustic screens and relates to process and methods. The board is suggested to be fabricated of acrylate glass, the size being at least 2x2 m with a thickness no less than 8 mm; to minimise splinter dispersion at eventual formation of cracks there are fibres, straps, grids and nets embedded in the board which are made of an acrylic glass incompatible material and filler admixtures added to the acrylic glass such as: talc, dolomite, natural aggregates of talc and dolomite, mica, quartz, aluminium chlorite, oxide and/or hydroxide, loams and clays, silicium dioxide, silicates, carbonates, phosphates, sulfates, sulfides, oxides of metals, ground glass, glass balls, ceramic material, kaoline, porcelain material, christobalite, feldspar and/or chalk. The filler fraction amounts to 40-80% of the total board weight minus the weight of the fibres, straps, grids and nets embedded. There is a method also suggested for manufacture of boards above specified.

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15 cl, 2 tbl, 4 ex

FIELD: building.

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EFFECT: maintenance of a sound absorption, stability, possibility of the free visibility.

18 cl, 2 dwg

FIELD: construction.

SUBSTANCE: invention deals with manufacture of boards of acrylate glass used as elements of acoustic screens and relates to process and methods. The board is suggested to be fabricated of acrylate glass, the size being at least 2x2 m with a thickness no less than 8 mm; to minimise splinter dispersion at eventual formation of cracks there are fibres, straps, grids and nets embedded in the board which are made of an acrylic glass incompatible material and filler admixtures added to the acrylic glass such as: talc, dolomite, natural aggregates of talc and dolomite, mica, quartz, aluminium chlorite, oxide and/or hydroxide, loams and clays, silicium dioxide, silicates, carbonates, phosphates, sulfates, sulfides, oxides of metals, ground glass, glass balls, ceramic material, kaoline, porcelain material, christobalite, feldspar and/or chalk. The filler fraction amounts to 40-80% of the total board weight minus the weight of the fibres, straps, grids and nets embedded. There is a method also suggested for manufacture of boards above specified.

EFFECT: enhancement of the boards mechanical properties and resistance to environmental factors; minimisation of splinter formation and ignitability.

15 cl, 2 tbl, 4 ex

FIELD: construction, ground based structures.

SUBSTANCE: invention pertains to construction, in particular to devices designed for protection from sound waves (noise), as well as from other radiations and their attenuation, and can be used in noise screens. The sound attenuating panel consists of perforated panel, blank panel, sound absorbing element, and covers for joining the perforated and blank panels, located between the perforated and blank panels. The perforated panel is made with openings in the form of slit-type traps with reflectors, turned in the direction of the sound absorbing element. The perforated panel consists of at least, two slit-type traps, whose reflectors are at different angles to the plane of the perforated panel. The ratio of the total area of the perforations to the area of the walls of the perforated panel is in the range 0.2 to 0.4. The technical outcome lies in the increase of the absorption capacity of the panel.

EFFECT: increased absorption capacity of the panel.

3 dwg

FIELD: construction, ground based structures.

SUBSTANCE: invention relates to construction, in particular to devices designed for protection from sound waves (noise), as well as waves from other radiations and their attenuation, and can be used in noise screens. The sound attenuation panel consists of perforated panel, blank panel, sound absorbing element, covers for joining the perforated and blank panels, located between the perforated and blank panels. The perforated panel is made with openings in the form of slit-type traps, whose reflectors are at different angles to the plane of the perforated panel. The ratio of the area of the perforations to the area of the walls of the perforated panel is in the range 0.2 to 0.4 and the sound absorbing elements have thickness in the range 30 mm to 100 mm, and are in a polyethylene sheath of thickness from 0.1 mm to 3 mm. The technical outcome lies in the increase of the absorption capacity of the panel.

EFFECT: increased absorption capacity of the panel.

3 dwg

FIELD: arrangements for absorbing or reflecting air transmitted noise from road or railway traffic, particularly noise-absorbing walls.

SUBSTANCE: soundproofing retaining structure comprises at least one transparent wall made of acrylic glass and including at least one steel rope built in the structure. Plastic layer is applied on at least part of steel rope. Plastic layer is formed of material other than acrylic glass and incompatible with it.

EFFECT: increased economical efficiency of structure production, assemblage and maintenance.

15 cl, 10 dwg

FIELD: safety devices for reduction of noise level of machines and equipment.

SUBSTANCE: proposed sound-proofing guard includes casing mounted on vibration-insulating support which is made in form of box-shaped framework with sound-absorbing material laid between its walls. Box-shaped framework may be either solid or built-up of noise-absorbing components inscribed in its contour. Noise-absorbing components consist of front wall with slotted perforations and rear wall. Walls are made from stainless steel or zinc-plated sheet, 0.7 mm thick with polymer protective decorative coat, type PURAL, 50 mcm thick or POLYESTER, 25 mcm thick; it may be also made from aluminum sheets, 1.0 mm thick provided with coat, 25 mcm thick. Ratio of framework height h to its width b is optimal: h/b=1.0-2.0 and ratio of thickness s' of assembled framework to its width is optimal: s'/b=0.1-0.15; ratio of thickness s of sound-absorbing material to thickness s' of assembled framework is optimal: s/s'=0.4-1.0; coefficient of perforation of front wall is equal to or more than 0.25.

EFFECT: enhanced efficiency of noise suppression.

7 cl, 5 dwg

FIELD: noise and acoustic wave protection devices, particularly ones adapted to pick up, suppress and absorb and used in building structures to provide normalized acoustic regime, for instance in noise-reduction protective screens arranged along motor roads.

SUBSTANCE: acoustic sandwich panel comprises rear and front walls, noise-absorbing block arranged between the walls. The acoustic panel is also provided with noise current splitters formed of profile with resonating cavity. The noise current splitters are installed from one side of front panel and have inclined plates with horizontal deflectors installed in parallel one to another so that slot-like arresters are formed. Acoustic sandwich-panel is provided with flat module formed of at least one layer of fibrous material having surface density of 100-1500 g/m2 and flat acoustic membrane made of at least one layer of sound-transmitting material with surface density of 25-200 g/m2. The membrane, noise current splitters and inclined plates with deflectors are mounted in three-dimensional module made at least of two vertical noise current splitters and flat acoustic membrane and inclined plates with deflectors secured to the splitters one after another. Flat and three-dimensional modules are serially mounted from outer side of front panel. Noise absorbing block is fixed relative front and rear panels by adhesive and/or mechanical means.

EFFECT: improved acoustic protection of buildings and building structures along traffic arteries, enhanced ecological situation.

48 cl, 14 dwg

FIELD: transport engineering.

SUBSTANCE: invention relates to enclosing acoustic shields designed to reduce noise from vehicles running over roads, including those running along highways, or electric trains on railways of noise from other sound sources i.e. to design of enclosing acoustic shields employing principles of multifold diffraction, sound interference and keeping reflected sound within the limits of main duct. Proposed enclosing acoustic shield has side wall and enclosing body connected to said side wall. Enclosing body of curved shape includes bent member with four bending units, each having angle of 142°.

EFFECT: provision of effective damping of noise and improved stability and possibility of use in the field, provision of adequate observation of surroundings.

8 cl, 2 tbl, 7 dwg

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