Reinforcement rod fixation device

FIELD: mechanics.

SUBSTANCE: reinforcement rod fixation device contains a body having a throughhole for the reinforcement rod insertion and embedded parts for installation between the reinforcement rod as inserted into the throughhole and the peripheral inner surface of the body. The peripheral inner surface of the body is shaped as a funnel. Each embedded element has hitching section on its peripheral inner surface coming in a fastening contact with the reinforcement rod and a conic surface formed on at least part of its peripheral outer surface that comes in surfacial contact with the body peripheral inner surface. The hitching section contains a section with female screw thread formed on the peripheral inner surface of the embedded elements designed so that to enable screwing onto the male screw thread section formed on the outer surface of the reinforcement rod. The body contains an insert section having a basically cylindrical shape and a flange section whose outer diametre exceeds that of the insert section. The flange section on the body outer periphery has a couple of flat sections positioned parallel to each other on opposite sides of the body throughhole central axis.

EFFECT: reinforcement rod fixture device can easily be fixed in a position relatively remote from the reinforcement rod end section; it ensures enhanced strength of cohesion to the reinforcement rod.

2 cl, 14 dwg

 

The technical field to which the invention relates.

The present invention relates to a device for fixing rebar, intending to commit rebar inserted into many laid in a row of blocks with the application of tensile force to the reinforcing rod, which can be linked with the armature rod, protruding from the end of the block.

The level of technology

When the type design of the wall of the blocks is constructed by stacking multiple concrete blocks, rebar inserted into these blocks in such a way that it passes through the cavity or similar areas in blocks, often fixed, with application to the reinforcing rod tensile strength to increase the strength of coupling between the blocks. In this case, rebar, usually fixed by setting the element having the function of a washer that is larger than the inner diameter of the cavities or similar sites, and a nut on the end of the rebar protruding from the end of the block, using this nut is tightened (see, for example, Patent Document 1).

Patent Document 1: Japanese patent publication No. S34-3622

Disclosure of inventions

Tasks solved with the help of inventions

As shown in Patent Document 1, by screwing and tightening the nut on the end of the Uch is the site of the rebar, jutting out from the end of the block, which is located on the top of some stacked on top of other blocks, under the application of tensile force to the reinforcing rod row of blocks can be locked. However, when the tail section of the rebar protruding from the end of the block, has a large length, a nut screwed on the end section of the reinforcing rod to rotate many times before, until it reaches the desired position at the end of the block. As a result, the operation of installing the nuts on the tail section of the rebar is difficult and requires a lot of time.

Thus, in the case of a large number of bars, for example, during the construction of a large structure, when performing the operation of screwing and tightening the nut on the end parts of the reinforcing rods require large amounts of labor and time.

The present invention is to create a device for fixing rebar, which can easily be fixed in a location relatively remote from the end portion of the rebar, and which applies to the reinforcing rod is a relatively large clamping force.

Means to solve this task

Device for fixing rebar corresponding to this is the invention, includes a body having a through hole to enter the rebar; embedded elements for installation between the reinforcing rod is introduced into the through hole, and the inner peripheral surface of the through-hole and the inner peripheral surface of the through hole is funnel-shaped, the diameter of which decreases in the direction of the Central axis; siteplease plot, which is engaged with the armature core formed on the inner peripheral surface of the inserted elements; and a conical surface, which is in surface contact with the inner peripheral surface of the body formed at least on part of the outer peripheral surface of the inserted elements.

With the above construction, the device for fixing the reinforcing rod can be locked in the desired position on the reinforcement rod as follows. First of all, the body is set so that the tail section of the rebar protruding from the end of the block was from a smaller aperture to the larger opening of the through hole of the body. After moving the body along the rebar to the end block reinforcing rod exert a tensile force. Then between the valve stem and the inner peripheral surface of the through hole is set in the plural the STV elements of the mortgage, this siteplease plot elements of the mortgage is in engagement with the valve stem. After this, remove the tensile force applied to the reinforcing rod. In the reinforcing rod is compressed in the direction of the Central axis, so that many elements of the mortgage is pushed in the direction of reduced diameter of the through-hole while being in the grip with the armature shaft, and a tapered outer peripheral surface elements of the mortgage is in surface contact with the inner peripheral surface of the through hole of the body and locked on this surface. Thus, the device for fixing the reinforcing rod is locked in the desired location of the rebar (for example, at the end of the block) with no movement.

In the above case, the body set with hand end portion of the reinforcing rod may be moved to the end of the block without the need for rotation. Therefore, the body can be easily fixed even in a position remote from the end portion of the rebar. Moreover, rebar, embedded elements, and the body can be committed compressive strength of the rebar after removal of the stretching force, which creates relatively high closing force, go active is davemee to the reinforcing rod. Between the body of the device for fixing the reinforcing rod according to the invention and the end unit can also be located cushioning (role washers) element having a through hole for the rebar.

As SitePlayer section on the inner peripheral surface of the fixed element may be, preferably, includes a section with an internal screw thread formed on the inner peripheral surface of the inserted elements, which is made with the possibility of screwing on the plot with an external screw thread formed on the outer peripheral surface of the rebar. Using this design inset element can tightly engage with the reinforcing rod that increases the strength of adhesion with the reinforcing rod.

In addition, inset element may be further provided with a slot which is open in the direction of the Central axis of the through hole. With this structure, after removal of the tensile force, when rebar and inset element is moved in the direction of reduced diameter of the through-hole himself inset element is deformed with a decrease in diameter due to the surface pressure applied from the inner peripheral surface of the through hole. Consequently, the clamping force applied is adivima to the reinforcing rod from laying element, increases, which leads to additional increase in the strength of adhesion with the reinforcing rod.

At the same time, the body on its outer periphery may have at least a pair of flat sections parallel to each other from opposite sides of the Central axis of the through hole. With this construction, in order to rotate the body, the flat areas of the body you can hook this tool as a wrench. Thus, the device for fixing the reinforcing rod, fixed on the reinforcing rod can be tightened or loosened with a wrench or similar tool.

The results of the inventions

The present invention provides a device for fixing rebar, which can easily be fixed in place, relatively remote from the end portion of the rebar, and which provides attachment to the reinforcing rod big fixation strength.

Brief description of drawings

Figure 1 is a view in plan, illustrating the device for fixing rebar in the embodiment of the invention.

Figure 2 is a front view of the device for fixing rebar shown in figure 1.

Figure 3 is a view in section along the line a-a in Figa.

Figure 4 is a exploded picture the device for fixing rebar shown in Figure 3.

Figure 5 is a view in plan of the body, which is part of the device for fixing rebar shown in figure 1.

6 is a front view of the body shown in Figure 5.

Fig.7 is a view in plan of a mortgage item that is included with the device for fixing rebar shown in figure 1.

Fig is a front view of the laying element shown in Fig.7.

Fig.9 is a view from below of a mortgage item is shown in Fig.7.

Figure 10 is a view illustrating the device for fixing the reinforcing rod of figure 1 during use.

11 is a view illustrating the device for fixing the reinforcing rod of figure 1 during use.

Fig is a view illustrating the device for fixing the reinforcing rod of figure 1 during use.

Fig is a view in plan, illustrating the device for fixing rebar in another embodiment of the invention.

Fig is a view in plan, illustrating the device for fixing rebar in yet another embodiment of the invention.

Reference designations

10, 20, 30: a device for fixing rebar

11, 21, 31: body

11a: through hole of the Sabbath.

11b: the inner peripheral surface

11C: plug-area

11d: flange section

11f: a smaller opening

11g: a larger aperture

12: inset element

12A: a plot with an internal screw thread

12b: the outer peripheral surface

12C: slot

13: rebar

13A: the plot with the outer screw thread

13b: the tail section

14: block

14a: cavity

14b: the end

15: plate

15A: fixing a hole

21A, 31A: flat plot

With the Central axis

T: tensile strength

The implementation of the invention

Below, with reference to the drawings, is an explanation of a variant of implementation of the present invention.

As shown in Figures 1-10, the device 10 for fixing the reinforcing rod includes a body 11 having a through hole 11a in which is inserted a valve rod 13, and a pair of embedded elements 12, which are installed between the valve rod 13 is inserted into the through hole 11a, and the inner peripheral surface of the through hole 11a. The inner peripheral surface of the through hole 11a has a shape of a funnel, the diameter of which decreases in the direction of the Central axis. On the inner peripheral surface of the fixed element 12 as the site, linked with the armature rod 13, provides castac 12A with an internal screw thread. The outer surface 12b laying element is formed as a conical surface which is in surface contact with the inner peripheral surface 11b of the body 11. On the outer periphery of the body 11 there is inserted a section 11C, which has essentially a cylindrical shape, and a flange section 11d, which has an outer diameter greater than the diameter of the insertion section 11C.

Two embedded element 12 are arranged opposite each other so that the outside of the connecting elements 12 are in the form of an inverted, essentially, of a truncated cone and inserted into the through hole 11a of the body 11. Inside the through holes 11a section 12A with an internal screw thread on the inner peripheral surface of the inserted elements 12 is screwed on the plot 13A with an external screw thread formed on the outer peripheral surface of the reinforcing rod 13, thereby clamping the reinforcing rod 13. In each of the embedded elements 12 in the direction along the Central axis of the through hole 11a formed slot 12C. The slit 12C is opened from the upper end towards the lower end of the laying element 12. The length of the slot 12C is approximately 65 to 75% of the length of laying element 12 in the direction of the Central axis, but is not limited to this value.

Further, with reference to figures 10-12, p is Voditsa explanation of the use of the device 10 for fixing rebar. Figures 10-12 illustrate an example of construction in which the reinforcing rod 13 is inserted into the cavity 14a laid on the height of the concrete blocks 14 and is fixed with the application of tensile force to the reinforcing rod 13.

As shown in figure 10, on the end face 14b of the upper block 14 has a plate element 15 having the function of the washer. The plate element 15 has a locking hole 15A, which has a diameter less than the size of the cavity 14a, and allows you to skip through him rebar. The tail section 13b of the rebar 13, is inserted into the cavity 14a, protrudes from the locking hole 15A of the plate element 15. The lower end section (not shown) reinforcing rod 13 is fixed on the end of the block located at the bottom (not shown). The body 11 is mounted so that the tail part of the armature 13b of the rod 13 passes through the through hole 11a of the body 11 from the smaller aperture 11f to greater opening 11g. Then the body 11 is moved along the reinforcing bar 13 to the plate element 15 on the end face 14b of the frame 14, and a plug section 11C of the body 11 is introduced into the locking hole 15A of the plate element 15, which leads to the condition in which the flange section 11d acts on the upper face of the plate element 15.

After this, the order of application of tensile force to the reinforcing rod 13, on the side to the core section 13b of the reinforcing rod 13 is mounted a conventional hydraulic Jack (not shown). Then, as shown at 11, between the valve rod 13 and the inner peripheral surface 11b of the through hole 11a of the body 11 install two cage element 12 which clamp the reinforcing rod 13. In this case, the section 12A with an internal screw thread, which is SitePlayer plot laying element 12 (see figure 4), is screwed to the site 13A with an external screw thread formed on the outer peripheral surface of the reinforcing bar 13. Thus, as shown in figure 11, the upper tail part of the fixed element 12 in the device 10 for fixing the rebar is in the condition in which it extends from a larger opening 11g of the body 11.

After this, remove the tensile force T applied to the reinforcing rod. Then, as the valve rod 13 is reduced in the longitudinal direction, embedded elements 12 extend in the direction of reduced diameter of the through hole 11a of the body 11, as shown in Fig, with embedded elements 12 are held in engagement with the armature rod 13, and the outer peripheral surface 12b (conical surface) embedded elements 12 comes into surface contact with the inner peripheral surface 11b of the through hole 11a of the body 11 and locked it. Thus, since the device 10 is fixed on the end face 14b of the frame 14, being connected with the armature rod 13, a valve rod 13 is fixed during the application thereto of tensile strength.

Through the use of device 10 for fixing rebar, the body 11 is installed from the side end portion 13b of the rebar 13, can be moved to the end 14b of the frame 14 without its rotation. Therefore, the body 11 can be easily fixed in position relatively remote from the end portion 13b of the rebar 13. In addition, due to the compressive force of the rebar 13 after removal of the tensile force T of the reinforcing rod 13, inset element 12 and the body 11 are fixed together, which creates greater clamping force applied to the armature rod 13.

Moreover, as shown in figures 3 and 4, on the inner peripheral surface of the fixed element 12 as SitePlayer area formed section 12A with an internal screw thread which engages with the section 13A with an external screw thread formed on the outer peripheral surface of the reinforcing bar 13. In this regard, inset element 12 and the reinforcing rod 13 can be rigidly coupled to each other by the application of a large force commit to reinforcing rod 13. In addition, as shown in Figures 7-9 and other figures, each of the pairs of embedded elements 12 is Ipanema slot 12C. Thus, when the valve rod 12 and the fitting elements 12 move toward the reduced diameter of the through hole 11a of the body 11 under the force of compression reinforcing rod 13 after releasing the tensile force T, themselves embedded elements 12 can be deformed, reducing its diameter due to the action of surface pressure applied from the inner peripheral surface 11b of the through hole 11a. Accordingly, the clamping action of embedded elements 12 provided on the valve rod 13, is increased, resulting in reinforcing rod 13 acts extremely large force commit.

Further, with reference to figures 13 and 14 will be explained other variants of the present invention. In the devices 20 and 30 for fixing rebar shown in figures 13 and 14, the elements having the same functions and effects, which have the elements described above, the device 10 for fixing rebar assigned the same reference number that are available on the figures 1-12, thus their explanation is omitted.

The device 20 for fixing the rebar shown in Fig, has a pair of flat parts 21A formed on the outer periphery of the body 21. The flat sections 21A are parallel to each other on opposite sides of the Central the axis of the through hole 11a. The device 30 for fixing rebar shown in Fig, has three pairs of flat areas formed on the outer periphery of the body 31. Each pair of flat parts 31A is parallel to each other on opposite sides of the Central axis of the through hole 11a.

In the above structures of the body 21 and 31 can be rotated in such a tool as a wrench (not shown)which engages with the flat sections 21A and 31A of the bodies 21 and 31. Thus, the devices 20 and 30 for fixing rebar, coupled with the armature rod 13 as shown in Fig can be, depending on the needs tightened or loosened with a wrench or similar tool. Other elements have the same advantages and effects which are the respective elements of the device 10 for fixing rebar, which is described above.

Industrial applicability

Device for fixing rebar according to the invention can be widely used in construction industry and other similar industries, in which different types of structures have to build by fixing the reinforcing rod is inserted into the multiple stacked in the row of blocks, with application to the reinforcing rod tensile strength.

1. Device to fix the tion of the rebar, containing a body having a through hole to enter the rebar and embedded elements for installation between the reinforcing rod is introduced into the through hole, and the inner peripheral surface of the body, with the inner peripheral surface of the body is funnel-shaped, and each of the elements of the mortgage has on its inner peripheral surface siteplease plot, which is engaged with the valve stem, and a tapered surface formed at least on part of its outer peripheral surface, which is in surface contact with the inner peripheral surface of the body, while siteplease section contains a plot with an internal screw thread formed on the inner peripheral surface of the insert elements made with the possibility of screwing on the plot with an external screw thread formed on the outer surface of the rebar, and the body includes a plug section having essentially a cylindrical shape, and a flange section having an outer diameter greater than the diameter of the insertion site, with the flange section on the outer periphery of the body has a pair of flat sections parallel to each other from opposite sides of the Central axis of the through hole of the body.

2. The device according to claim 1, otlichayas the same time, that embedded elements are cut open in the direction of the Central axis of the through hole.



 

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