JPH0749169Y2 - Wax-type thermal valve - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wax-type thermally actuated valve in which an annular rubber material for sealing is fixed to a valve body contact portion of an annular valve seat.

[0002]

2. Description of the Related Art Heretofore, as a wax-type heat-actuated valve, one disclosed in Japanese Utility Model Publication No. 48-37303 has been known.

[0003]

In the conventional wax-type heat-actuated valve, the seat is provided with an elastic seal,
Moreover, since an elastic body seal is also attached to the valve, an elastic body made of rubber is vulcanized and adhered to the two parts of the seat and the valve. Also, in order to prevent water leakage when the casing is fixed to the flow path, the rubber
Rubber with asbestos or reinforcing fibers is attached. However, since the elastic seal and the rubber material are separately attached to the seat and the valve that are manufactured separately, there are disadvantages that the manufacturing cost of the component is high and the manufacturing time of the component is long.

[0004]

In order to advantageously solve the above-mentioned problems, in the wax-type thermally actuated valve of the present invention,
A sealing rubber ring 4 is fixed to the outer periphery of a fixing flange 3 of a casing 2 fixed to the flow path 1, and is moved to an annular valve seat 5 provided in the casing 2 by a wax-type heat-responsive expansion / contraction device 6. The valve bodies 7 facing each other are arranged,
In the wax-type thermo-responsive valve in which the sealing annular rubber material 8 is fixed at a position facing the valve body 7 in the annular valve seat 5, one end of the vertical cylinder 9 is bent to the inner periphery of the fixing flange 3. An annular valve seat 5 is bent and connected inward at the other end of the vertical cylinder 9, and a large number of communication holes 10 are provided at the bending connection part of the vertical cylinder 9 and the annular valve seat 5. An annular rubber material body 11 for sealing, which is provided at intervals in the circumferential direction of the annular valve seat 5 and is fixed to the inner surface of the vertical cylinder 9 and the annular valve seat 5.
The auxiliary annular rubber material 12 fixed to the outer surface of the vertical cylinder 9 and the outer peripheral side surface of the annular valve seat 5 is coupled via the rubber material filled in the communication hole 10.

[0005]

3 to 5 show an annular member 18 having a rubber ring for sealing 4, an annular valve seat 5, and an annular rubber material for sealing 8 used in the first embodiment of the present invention. The steel plate is press-worked, and the annular fixing flange 3, the vertical cylinder 9 downwardly connected to the inner periphery of the flange 3 and the lower end of the vertical cylinder 9 are internally bent and connected. And the annular valve seat 5 is formed.

A large number of communication holes 10 are provided in the bending connection portion between the vertical cylinder 9 and the annular valve seat 5 at intervals in the circumferential direction of the annular valve seat 5, and the inner surface of the vertical cylinder 9 and the annular shape. Valve seat 5
The sealing annular rubber material main body 11 fixed to the upper surface of the above and the auxiliary annular rubber material 12 fixed to the outer surface of the vertical cylinder 9 and the outer peripheral side lower surface of the annular valve seat 5 are filled in the communication hole 10. It is connected through a rubber material.

An inner peripheral opening groove of the sealing rubber ring 4 is fitted on the outer periphery of the fixing flange 3, and the fixing flange 3 has a diametrical direction at an intermediate portion in the width direction. Locking holes 14 for inserting and fixing the upper end portion of the casing body 13 are provided on both sides of.

FIG. 1 and FIG. 2 show a wax-type heat-actuated valve according to a first embodiment of the present invention, which uses the parts shown in FIGS. 3 to 5, and is supported on the upper surface of a fixing flange 3. The end plates 16 on both sides of the member 15 are overlapped with each other, and the insert pieces on the upper side parts on both sides of the casing body 13 are inserted into the locking holes 14 of the fixing flange 3 and the locking holes of the end plate 16. The casing 2 is fixed by crimping, and the casing 2 is constituted by the fixing flange 3, the casing body 13 and the supporting member 15.

An annular member 18 having an annular valve body 7 is fitted to the large-diameter end of the container 17 of the wax-type heat-responsive expansion / contraction device 6, and the annular member 18 and the casing body 13 are provided with an annular member. A wax 19 that presses the member 18 in the valve closing direction is interposed between the rubber sleeve 20 disposed in the central portion of the container 17 and the peripheral wall of the container 17 with a wax 21 interposed therebetween.
And the other end of the plunger 22 whose one side is inserted into the rubber sleeve 20 is fixed to the central portion of the support member 15.

When the water temperature around the container 17 in the wax-type heat-responsive expansion / contraction device 6 rises, the wax 21 expands and the expansion force pushes the plunger 22 out of the rubber sleeve 20. However, the plunger 22
Is fixed to the support member 15, the container 17 and the annular member 18 move in the valve opening direction.

When the water temperature around the container 17 in the wax-type heat-responsive expansion / contraction device 6 decreases, the wax 21 contracts.
8 is moved in the valve closing direction.

FIGS. 6 and 7 show a wax-type heat-actuated valve according to a second embodiment of the present invention, in which a vertical cylinder 9 is bent upwardly and continuously on the inner periphery of a fixing flange 3. The annular valve seat 5 is bent and connected inwardly at the upper end of the vertical cylinder 9, but the other configurations are the same as in the case of the first embodiment.

The present invention can be implemented in any type of wax-type heat-actuated valve other than the above-mentioned embodiments.

[0014]

According to the present invention, the sealing rubber ring 4 is fixed to the outer circumference of the fixing flange 3 of the casing 2 fixed to the flow passage 1, and the ring-shaped valve seat 5 provided on the casing 2 is fixed. A wax-type heat device in which a valve body 7 moved by a wax-type heat-responsive expansion / contraction device 6 is arranged to face each other, and a sealing annular rubber material is fixed to a position of the annular valve seat 5 facing the valve body 7. In the response valve, one end of a vertical cylinder 9 is bent and connected to the inner periphery of the fixing flange 3, and an annular valve seat 5 is bent and connected to the other end of the vertical cylinder 9 inward.
A large number of communication holes 10 are provided in the bending connection portion of the vertical cylinder 9 and the annular valve seat 5 at intervals in the circumferential direction of the annular valve seat 5, and the inner surface of the vertical cylinder 9 and the annular valve seat 5 are provided. The sealing annular rubber material main body 11 fixed to the above and the auxiliary annular rubber material 12 fixed to the outer surface of the vertical cylinder 9 and the outer peripheral side surface of the annular valve seat 5 are the rubber materials filled in the communication hole 10. Since they are connected via the seal type heat-sealing valve, it is not necessary to fix the sealing rubber ring 4 and the sealing annular rubber member 8 to a plurality of parts constituting the wax-type heat-actuated valve, and the sealing rubber ring 4 and Since it suffices to fix the sealing annular rubber material 8, it is possible to manufacture the components constituting the wax-type heat-responsive valve at low cost and in a short time, and the sealing annular rubber material main body 11 and the auxiliary annular rubber. Secure the material 12 with simple means May also be tightly bound, therefore sealing the annular rubber body 11 secured to the annular valve seat 5, it is possible to reliably prevent by simple means from separating from the annular valve seat 5. In the case of the present invention,
Since one end of the vertical cylinder 9 is bent and connected to the inner circumference of the fixing flange 3 and the annular valve seat is bent and connected to the other end of the vertical cylinder 9 inwardly, the sealing rubber ring 4 and Since the shape of the component for fixing the sealing annular rubber material is simple, the sealing rubber ring 4 and the sealing annular rubber material can be simultaneously vulcanized and molded. Further, in the case of the present invention, the amount of the rubber material used can be significantly reduced as compared with the case where the entire surfaces of the fixing flange 3, the vertical cylinder 9 and the annular valve seat 5 are covered with the rubber material.

[Brief description of drawings]

FIG. 1 is a partially cutaway vertical side view showing a wax-type thermally actuated valve according to a first embodiment of the present invention.

FIG. 2 is a vertical sectional side view showing a part of FIG. 1 in an enlarged manner.

FIG. 3 is a plan view showing an annular member that is used in the first embodiment of the present invention and that includes a sealing rubber ring, a sealing annular rubber member, and an annular valve seat.

4 is an enlarged side view of the annular member shown in FIG.

5 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 6 is a vertical sectional side view showing a wax-type thermally actuated valve according to a second embodiment of the present invention.

FIG. 7 is a partially longitudinal side view showing a part of FIG. 6 in an enlarged manner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Channel 2 Casing 3 Fixing flange 4 Sealing rubber ring 5 Annular valve seat 6 Wax type thermo-responsive expansion / contraction device 7 Valve body 8 Sealing annular rubber material 9 Vertical tube 10 Communication hole 11 Sealing annular rubber material body 12 Auxiliary annular Rubber material 13 Casing body 14 Locking hole 15 Supporting member 16 End plate 17 Container 18 Annular member 19 Spring 20 Rubber sleeve 21 Wax 22 Plunger

Claims (1)

[Scope of utility model registration request] A sealing rubber ring 4 is fixed to the outer periphery of a fixing flange 3 of a casing 2 fixed to a flow path 1, and a wax type thermo-responsive expansion and contraction is made to an annular valve seat 5 provided in the casing 2. In the wax-type heat-operated valve in which the valve body 7 moved by the device 6 is arranged to face each other, and the sealing annular rubber material 8 is fixed at a position facing the valve body 7 in the annular valve seat 5, One end of a vertical cylinder 9 is bent and connected to the inner circumference of the fixing flange 3, and an annular valve seat 5 is bent and connected to the other end of the vertical cylinder 9 inwardly. A large number of communication holes 10 are provided in the bent connection portion with the vertical pipe 9 at intervals in the circumferential direction of the annular valve seat 5.
The sealing annular rubber material body 11 fixed to the inner surface and the annular valve seat 5 and the auxiliary annular rubber material 12 fixed to the outer surface of the vertical cylinder 9 and the outer peripheral side surface of the annular valve seat 5 are the communication holes 1
Wax-type heat-actuated valve that is connected through a rubber material filled in 0.