Thermostatic upper node radiator valve

 

(57) Abstract:

Thermostatic upper node radiator valve can be used in the valve housings of at least two types, due to the presence of the adapter. Means mounting the upper node with the possibility of its direct installation on the valve housings of at least two different types. The adapter is placed entirely inside the upper node and is formed of two parts of the rod is arranged to move relative to each other. As a result of this may change the effective length of the rod. 17 C.p. f-crystals, 14 ill.

This invention relates to thermostatic upper node of the radiator valve, through which the adapter can be used with the valve housings of at least two types, equipped with means of attachment for installation on the valve body and the valve stem, is made with the possibility of axial movement by means dependent on the temperature of the working element to move in the valve body of the follower spring return spring.

Thermostatic radiator valves include a valve body and thermostatic very site contains the work item, filled with substance, expanding with changing temperature and provided with a valve stem for extension of the plunger of the valve housing and, consequently, movement of the closing element of the valve. Expanding substance can be solid, pasty or liquid or even gaseous, or vapor-liquid filler in combination with the setting spring. Since the top node exactly fitted to the valve housing, the calibration of the position of the top node can be performed on the plant (DE, 1907231 A1, class G 05 D 23/12, 1972).

Known thermoregulatory the top node of the above type which is adapted to the valve housing of the same type and which can be installed on the valve body of the other type by means of the adapter is placed between the means securing the upper Assembly and the valve body. Such detail as this adapter can easily be lost. In addition, the adapter causes a decrease in the strength of the connection of the upper Assembly with the valve body (EP 0504582, A2, class G 05 D 23/02, 1992).

Closest to the device according to the invention is a thermostatic upper unit, performed with the slide being moved in the transverse direction between the valve stem and the upper node and talknow value. Thus, the regulation position to the preset value can be performed faster and easier than using the usual method of control using the rotary knob. Fastening this top node, adapted to the specific valve body and is therefore suitable for use only with the valve housing of this type (DE 2220340A, CL G 05 D 23/12, 1974).

The invention is directed to solving the task of creating a thermostatic upper Assembly of the above type which may be used in combination with the valve casing at least two different types and which avoids the problems encountered previously when using the adapter.

The technical result is achieved that the temperature-controlled top node, radiator valve, through which the adapter can be used with the valve housings of at least two types, equipped with means of attachment for installation on the valve body and the valve stem, is made with the possibility of axial movement by means dependent on the temperature of the working element to move in the valve body plunger, spring return spring, sogliani buildings of different types, at least two types, when this adapter is formed of two parts of the rod is arranged to move in relation to each other, resulting in a change in the effective length of the valve stem.

This invention is based on the fact that if the means of attachment suitable for direct connection to a valve housing with at least two different types, to enable the use of the upper Assembly with the valve housings of at least two different types of adapter must only have the possibility of changing the working length of the valve shaft. Thus, the adapter can be made with smaller structural size and placed inside the top node. It can constantly be in place by putting it in the line of power transmission at each top node, which ensures reliable protection against damage. There is no need to perform the adapter open from the outside for inspection. The immediate setting of the upper node provides a solid attaching it to the valve body. The requirement of suitability of the means of attachment to the valve housing at least two types of the most simply can be satisfied, if these buildings, youseo top node is attached to the end of the valve housing, has the same diameter. In this case, the difference of sizes of valve housings of various types essentially consists in the mechanism. Possible variants of implementation, in which the means of attaching various ways pressed in the axial or radial directions and interact with the clamping surfaces of the valve body, which need not be identical to each other in buildings of different types.

The preferred value of the change in length, predefined by regulating parts of the shaft are set so that the calibrated position of the upper node is suitable for valve housings of both types. Thus, the calibration of the upper Assembly can be produced in the factory. This calibration is the same for valve housings of various types that can be attached to the upper node.

It is reasonable to provide one part of the rod is displaced in the axial direction of the support surfaces interconnected by means of bevel and selectively interacting with mating surface of another part of the stem, the result of the relative movement. The required change of the working length of the valve shaft is achieved potnye surface, in particular, performed at the ends of these two parts of the rod. Such portions of the rod can be made relatively small in size.

Two parts of the rod is made to rotate relative to each other. It also promotes the production capability of the adapter is very small in size, so that it can be entirely placed inside the top node.

In a preferred embodiment, the support surface is formed by at least two, preferably four sectors of the circle. The required change of the working length of the valve stem is realized by means of the relative rotation angle of 180 or 90o.

The supporting surface may also be made in the form of projections and/or recesses on a flat surface.

In the most preferred embodiment, the supporting surface is made symmetric with respect to some point of symmetry. In the transmission bearing forces is carried out symmetrically and without creating undesirable tilting moments.

It is also useful to perform one part of the rod with the elongated part in the form of a sleeve, and another run in the form of a cylinder located in the sleeve. The sleeve serves as suprasti rod can be secured against falling out. This precaution provides a full guarantee that the adapter will not be lost.

To achieve this, a part of the shaft sleeve is provided outside at least one Cam within the axial guide (groove or groove) in the bottom of the top node is bounded at least on one end.

With respect to another part of the stem, it is desirable that the cylinder had an outside at least one Cam, which is the axial groove of the sleeve, limited at least at one end.

In addition, in the preferred embodiment, the limitation of the axial guide or axial groove at one end is a ledge made with the possibility of the elastic displacement under the action of the inclined Cam surface. Such a device is useful when the Assembly, after which securely holds all the parts in place.

In another improved embodiment, the end position of relative rotation can be fixed by means of locks and/or obstacles. Therefore ensured easy installation of the adapter in the desired position and protection from possible wrong actions. In addition, the mesh may be accompanied by sound.

In a preferred embodiment, the possibility of fixing one part of the stem in the upper valve Assembly with detent from rotation, while the other part of the rod is provided with a surface interaction for the application of torque. This provides convenience for the regulation of the adapter.

Structurally, it is provided, in particular, the fact that the sleeve is fixed with fixation against rotation and the cylinder at its free end has a transverse groove for engagement with a tool such as a screwdriver. The free end over its entire area available for placement of the instrument. Using this method provides the convenience for the regulation of even a small adapter.

In a preferred embodiment, the parts of the stock are marked to indicate their mutual arrangement. Such marking can be made in the form of arrows on one side of the rod position indicator to another.

What follows is a more detailed OPI is which: Fig. 1 depicts a side view with partial cut thermostatic radiator valve, equipped according to the invention; Fig. 2 depicts a side view of the outer part of the stem; Fig. 3 depicts a longitudinal section of the outer part of the stem; Fig. 4 depicts a bottom view of the outer part of the stem; Fig. 5 depicts a section along the line a-a in Fig. 3; Fig. 6 depicts a side view with partial section of the inner part of the stem; Fig. 7 depicts a top view of the inner part of the stem; Fig. 8 depicts a section along the line b-b In Fig. 6; Fig. 9 depicts a bottom view of the inner part of the stem; Fig. 10 schematically illustrates the interaction between the reference and response surfaces; Fig.11 depicts a view of a perspective view with cut the outer part of the stem; Fig. 12 depicts a view of a perspective view of the inner part of the stem; Fig. 13 depicts the outer part of the stem in a modified embodiment, and Fig. 14 depicts the outer part of the stem in another modified embodiment.

An embodiment depicted in Fig. 1-12, relates to thermostatic radiator valve containing a valve housing 1 and the temperature-controlled top node 2. Typically, the valve housing 1 has an inlet pipe 3 and the outlet 4, between which razmeshivali element is held in the open position, spring return, and in the closed position is moved by the compression of the pusher 5, coming out through the stuffing box 6. The stuffing box is surrounded by a coupling 7 having an external thread 8.

Site 2 contains the rotary knob 8A inside the work item 9 filled with a substance capable of expansion. In this particular case, the work item is filled with a pasty substance that when expansion with changes in temperature moves the first portion 10 of the stem 11 of the valve in the axial direction. The valve stem, in turn, consists of an outer 12 and 13 internal parts, which together form the adapter because the Handle 8A can be rotated on the base 14 to the position reference. This rotation causes an axial displacement of the rod 11. The base 14 fixed to the body 1 by means of 15 attachment, in this case designed in the form of a coupling nut 16 screwed on the outer thread 8, the end face of the base 14 is pressed against the end face of the coupling 7. As a result, the portion 13 of the rod acts on the pusher 5.

As is most clearly shown in Fig. 2-5, the part 12 of the rod has an end wall 17, on one side of which is a pin 18, which interacts with the Directors of the support surface 20 and 21 located between the bevel 22. On the outer side of the sleeve 19 is made of two Cam 23, which are in engagement with the axial direction 24 of the base 14. The axial guide is limited at the lower end of the guide 25. The protrusion can be moved to the inclined surface 26 of the Cam, so that when installing the Cam 23 in the axial direction 24 part 12 of the rod is captured in the base 14.

Part 13 of the rod is formed by a cylinder 27, with two slots 28, leaving him in cross-section along line B-only In the shaded portion 29 (see Fig. 8). At the end there are two mating surfaces 30 in the form of sectors with ascending to him bevels 31. On the outer side is made of the Cam 32, which engages with one of the two axial grooves 33, 34 of the sleeve 19. These slots are also limited by the corresponding protrusion 35, a shift of the inclined surface 36 of the Cam 32 when entering it into the groove 34, and then preventing the falling out part 13 of the stem portion 12 of the rod. Section 37 of the sleeve located between the two pairs 33 and 34, due to the reduced wall thickness and presence continue 38 of the groove 34 has a capacity for elastic deformation. Thus, under the action of torque cylinder 27 can be rotated from one detent position in which the Cam 32 whorehouse to the grooves 33, 34. To create a torque on the free end 40 of the cylinder 27 is made of the transverse groove 41 into which may be inserted the blade of a screwdriver or other tool.

In Fig. 11 and 12 schematically shows a support surface 20, 21 and response surface 30 on the parts 12 and 13 of the rod. As schematically depicted in Fig. 10, in one position, established by the rotation support surface 20 interacts with the response surface 30 of the portion 13 of the rod (in the upper part of the drawing) and in the other position, established by the rotation support surface 21 interacts with the response surface 30 (at the bottom of the drawing). In this case, accordingly, changes the total length of the two parts 12 and 13 of the rod in the axial direction. When moving from one position of rotation at a different effective length of the rod 11 in the axial direction is reduced by an amount equal to the distance between the support surfaces 20 and 21, measured along the axis. This distance can be met with a high degree of accuracy, so that, if node 2 is installed on a different valve body 1, which, in turn, has an external thread 7 for fastening the upper node, the adaptation length is carried out in such a way that the calibrated value of the position of node 2, set the respecto arrow 42 on the portion 13 of the rod and labels X and Y (for example, abbreviations used valve bodies) on the free end portion 12 of the stem.

In an embodiment shown in Fig. 13, the outer portion 112 of the rod has two support surfaces 120 and 121 connected by bevel 122 and in this case having a semicircular shape. The shape of the mating surfaces on the inner part of the stem may be made in accordance with the shape of the supporting surface.

It is shown in Fig. 14 outer portion 212 of the rod has on the surface 243 of the recess 221 in the form of a truncated cone, the role of support surfaces. Accordingly it can be done and the end surface of the inner part of the stem. Thus, in this embodiment, the effective length of the valve shaft can have three values.

Adapter K, including parts 12 and 13 of the rod, is entirely located inside the top of node 2, thus prevented the possibility of it falling out. Its size is extremely small, for example, the sleeve 19 has a length of 12 mm and an outer diameter of 8 mm

Illustrated an embodiment can be modified in many ways without departing from the basic principle of the invention. For example, the reference and response surface can be performed and on the periphery is the quality fastening means may be used a conventional clamping device, who, for example, tightening the elastic legs of the base radially inward by means of clamping strips or can be used with any other known fastening, ensuring the suitability of the means of fastening the top site for direct installation on the valve housings of two different types.

1. Thermostatic upper node, radiator valve, through which the adapter can be used with the valve housing, at least two types, equipped with means of attachment for installation on the valve body and the valve stem, is made with the possibility of axial movement by means dependent on the temperature of the working element to move in the valve body plunger, spring return spring, wherein the fastening means is configured to direct installation of the top node on the valve housings of various types, at least two types, and the adapter is formed of two parts of the rod, configured to move relative to each other, resulting in a change in the effective length of the valve stem.

2. Site under item 1, characterized in that the change in dlinnie top node is suitable for valve housings of both types.

3. Site under item 1 or 2, characterized in that one part of the rod is displaced in the axial direction of the support surface, interconnected by means of bevel and selectively interacting with mating surface of another part of the stem, the result of the relative movement.

4. Site under item 3, characterized in that the support and response surfaces, in particular, made at the ends of these two parts of the stem.

5. The node on one of the PP. 1 to 4, characterized in that the two said parts of the rod is made to rotate relative to one another.

6. Site on PP. 4 and 5, characterized in that the supporting surface is formed by at least two sectors of a circle.

7. Site on PP. 4 and 5, characterized in that the supporting surface formed by the protrusions and/or recesses on a flat surface.

8. The node on one of the PP. 3-7, characterized in that the supporting surfaces are made symmetrically with respect to some point of symmetry.

9. The node on one of the PP. 1-8, characterized in that one part of the rod is made with an elongated part in the form of a sleeve, and the other is made in the form of a cylinder located in the sleeve.

10. The node on one of the PP. 1-9, To sleeve provided outside at least one Cam, within the axial guide in the form of grooves or groove in the bottom of the top node is bounded at least on one end.

12. The node on one of the PP. 9-11, characterized in that the cylinder is outside at least one Cam, which is the axial groove of the sleeve, limited at least at one end.

13. Site under item 11 or 12, characterized in that the limitation of the axial guide or axial groove at one end is a ledge made with the possibility of the elastic displacement under the action of the inclined Cam surface.

14. The node on one of the PP. 5-13, characterized in that the end position of relative rotation is fixed by means of locks and/or obstacles.

15. The node on one of the PP. 9-14. characterized in that the sleeve has two axial groove is displaced around the circumference, in which the Cam cylinder selectively engages, while the portion of the liner between the axial grooves made with the possibility of elastic displacement under the action of the Cam.

16. The node on one of the PP. 5-15, characterized in that one part of the rod is fixed in the upper valve Assembly with detent from rotation, while the other part of the rod is provided with a surface interaction for the application kr is rotated, and the cylinder at its free end has a transverse groove for engagement with a tool such as a screwdriver.

18. The node on one of the PP. 1-17, characterized in that the said part of the stem are marked to indicate their relative position.

 

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