Anti-explosion valve body and anti-explosion valve

Abstract

The anti-explosion valve body comprises a shell and a sealing gasket, and the shell is provided with an installation cavity used for installing an anti-explosion assembly; a sleeve is arranged at the water outlet end of the shell, and the sealing washer is rotationally arranged on the outer wall of the sleeve in a sleeving mode; the diameter of the inner ring of the sealing washer is larger than the diameter of the outer wall of the sleeve at the position where the sealing washer is located. Compared with the prior art, due to the fact that the diameter of the inner ring of the sealing gasket is larger than the diameter of the outer wall of the sleeve, the sealing gasket and the sleeve can rotate freely, the situation that the sealing gasket is twisted when the angle valve is screwed in is reduced, and the risk of water leakage is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of bathroom technology, specifically is a kind of explosion-proof valve body and explosion-proof valve. BACKGROUND

[0002] Explosion-proof valve is installed between angle valve and water supply pipeline interface, for when angle valve breaks, it can stop water, avoid the waterlogging loss caused by not timely discovery.

[0003] The water outlet of explosion-proof valve body is provided with sealing washer, and the sealing washer is abutted with the threaded port of angle valve to realize sealing. However, when installing, the threaded port of angle valve is contacted with the sealing washer, since the sealing washer is tightly fitted between the valve body, the sealing washer is easy to be twisted between the explosion-proof valve body and the threaded port, causing the damage of sealing washer to cause water leakage.

[0004] Therefore, the present application is produced in view of the above-mentioned defects in the prior art. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide an explosion-proof valve body and explosion-proof valve, which solves the problem of water leakage caused by twisting of the sealing washer during installation mentioned in the background art.

[0006] In order to achieve the above purpose, the solution of the utility model is as follows:

[0007] An explosion-proof valve body, comprising a housing and a sealing washer, the housing has a mounting cavity for mounting an explosion-proof assembly; the water outlet end of the housing is provided with a sleeve, and the sealing washer is rotatably sleeved on the outer wall of the sleeve; the inner diameter of the sealing washer is greater than the outer diameter of the sleeve at the position.

[0008] Further, the outer wall of the sleeve has an annular groove, the inner side of the sealing washer is provided with an annular limiting protrusion, the annular limiting protrusion is sleeved in the annular groove, and the inner diameter of the annular limiting protrusion is greater than the outer diameter of the sleeve of the annular groove.

[0009] Further, the housing is provided with a sealing end face for abutting the sealing washer, the annular groove extends to the sealing end face, one end of the sealing washer for connecting with the sealing end face is a first end face, and the maximum axial distance between the annular limiting protrusion and the first end face is less than the axial height of the annular groove.

[0010] Further, an annular clearance groove is arranged between the annular limiting protrusion and the first end face.

[0011] Further, the sealing washer is made of rubber material.

[0012] Further, one end of the sealing gasket towards the water outlet direction is a second end face, an inner ring diameter of the second end face is 12-14mm, and an outer ring diameter is 16.5-18mm.

[0013] Further, a threaded connection part is further arranged on the shell.

[0014] Further, the threaded connection part has an external thread, and one end of the threaded connection part is flush with the first end face.

[0015] An explosion-proof valve, wherein the valve body is as above, and further comprising an explosion-proof assembly in the valve body.

[0016] After the above structure is adopted, the explosion-proof valve body and the explosion-proof valve have at least the following beneficial effects:

[0017] I. Since a gap is arranged between the inner ring of the sealing gasket and the outer wall of the sleeve, the sealing gasket can rotate relative to the sleeve, thus, when the angle valve is screwed into the water supply pipeline interface, the sealing gasket can rotate to release the torsion without being twisted, and finally, the sealing connection between the threaded port of the angle valve and the explosion-proof valve body is realized.

[0018] II. The annular groove and the annular limiting protrusion are matched with each other to realize the axial limiting of the sealing gasket, and the function of avoiding axial disengagement is realized.

[0019] III. The axial maximum distance between the annular limiting protrusion and the first end face is less than the axial height of the annular groove, thus, the annular surface at the step of the sealing gasket is not tightly matched with the sleeve, and the smooth rotation of the sealing gasket can be ensured.

[0020] Compared with the prior art, the inner ring diameter of the sealing gasket is greater than the outer wall diameter of the sleeve, so that the sealing gasket and the sleeve can freely rotate, the torsion of the sealing gasket when the angle valve is screwed in is reduced, and the risk of water leakage is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a sectional view structure schematic diagram of the explosion-proof valve body.

[0022] Figure 2 It is a sectional view structure schematic diagram of the explosion-proof valve of the first embodiment.

[0023] Figure 3 It is a sectional exploded view structure schematic diagram of the explosion-proof valve of the first embodiment.

[0024] Figure 4 It is a sectional view structure schematic diagram of the explosion-proof valve of the second embodiment.

[0025] Figure 5It is a sectional exploded structure schematic view of the explosion-proof valve of the second embodiment.

[0026] Figure 6 It is an exploded structure schematic view of the explosion-proof assembly and the valve body.

[0027] In the figure:

[0028] The shell 1, the mounting cavity 11, the sleeve 12, the annular groove 121, the sealing end face 13, the threaded connection part 14, the sealing gasket 2, the annular limiting convex edge 21, the first end face 22, the second end face 23, the annular clearance groove 24, the explosion-proof assembly 3, the movable core 31, the spring 32. DETAILED DESCRIPTION

[0029] In order to further explain the technical scheme of the utility model, the utility model will be described in detail below through specific embodiments.

[0030] As shown in Figures 1 to 6 , it is an explosion-proof valve body related to the utility model, comprising a shell 1 and a sealing gasket 2, the shell 1 has a mounting cavity 11 for mounting an explosion-proof assembly 3; the water outlet end of the shell 1 is provided with a sleeve 12, and the sealing gasket 2 is rotatably sleeved on the outer wall of the sleeve 12; the inner diameter d of the sealing gasket 2 is greater than the outer wall diameter H of the sleeve 12 at the position.

[0031] In this way, the explosion-proof valve body and the explosion-proof valve related to the utility model, since a gap is arranged between the inner circle of the sealing gasket 2 and the outer wall of the sleeve 12, the sealing gasket 2 can rotate relative to the sleeve 12, therefore, when the angle valve is screwed into the water supply pipeline interface (not shown in the figure), the sealing gasket 2 can rotate to release the torsion, without being twisted, and finally pad between the threaded port of the angle valve and the explosion-proof valve body to realize the sealed connection of the two.

[0032] Preferably, as shown in Figures 2 to 3 , as the first embodiment of the utility model, the outer wall of the sleeve 12 has an annular groove 121, the inner side of the sealing gasket 2 is provided with an annular limiting convex edge 21, the annular limiting convex edge 21 is sleeved in the annular groove 121, and the inner diameter of the annular limiting convex edge 21 is greater than the outer wall diameter of the sleeve 12 in the annular groove 121. The annular groove 121 and the annular limiting convex edge 21 cooperate with each other to realize the axial limiting of the sealing gasket and avoid axial disengagement.

[0033] Preferably, the shell 1 is provided with a sealing end face 13 for abutting the sealing gasket 2, and the annular groove 121 extends to the sealing end face 13; the end of the sealing gasket 2 for connecting with the sealing end face 13 is a first end face 22; and the axial maximum distance between the annular limiting protrusion 21 and the first end face 22 is less than the axial height of the annular groove 121. In this way, the annular surface at the sealing gasket step is not tightly fitted with the sleeve 12, and the smooth rotation of the sealing gasket can be ensured.

[0034] Preferably, as shown in Figure 4 and Figure 5 the second embodiment of the utility model, an annular clearance groove 24 is arranged between the annular limiting protrusion 21 and the first end face 22. In this way, the contact area of the sealing gasket with the sealing end face 13 is reduced, and the contact resistance is reduced.

[0035] Preferably, the sealing gasket 2 is made of rubber material. The rubber material has better wear resistance, and is beneficial to prolong the service life.

[0036] Preferably, one end of the sealing gasket 2 towards the water outlet direction is a second end face 23, the inner diameter d of the second end face 23 is 12-14 mm, and the outer diameter is 16.5-18 mm. Preferably, the shell 1 is further provided with a threaded connection part 14. The threaded connection part 14 has external threads, and one end of the threaded connection part 14 is flush with the first end face 22, so that the structure is more compact, the occupation of the internal threads of the water supply pipeline interface is reduced, and the installation of the angle valve can be connected with more internal threads.

[0037] An explosion-proof valve, as shown in Figure 6 the valve body, and further comprising an explosion-proof assembly 3 in the valve body. The explosion-proof assembly 3 comprises a movable core 31 and a spring 32 sleeved outside the movable core 31, the spring 32 abuts on the movable core 31 from the water outlet direction to the water inlet direction, and the movable core 31 can move back and forth in the installation cavity 11 to block or open the water outlet according to the change of water pressure.

[0038] Compared with the prior art, the inner diameter of the sealing gasket 2 is greater than the outer wall diameter of the sleeve 12, so that the sealing gasket 2 and the sleeve 12 can rotate freely, the distortion of the sealing gasket when the angle valve is screwed in is reduced, and the risk of water leakage is reduced.

[0039] The above embodiments and drawings do not limit the product form and style of the utility model, and any ordinary technical personnel in the technical field can make appropriate changes or modifications, which should be regarded as not departing from the patent category of the utility model.

Claims

1. An explosion relief valve body, characterized by The application relates to a valve body, which comprises a shell and a sealing gasket, the shell is provided with a mounting cavity for mounting an explosion-proof assembly; a sleeve is arranged at a water outlet end of the shell, the sealing gasket is sleeved on the outer wall of the sleeve; the inner diameter of the sealing gasket is larger than the outer diameter of the sleeve.

2. A valve body according to claim 1, wherein The outer wall of the sleeve is provided with an annular groove, the inner side of the sealing gasket is provided with an annular limiting convex edge, the annular limiting convex edge is sleeved in the annular groove; the inner diameter of the annular limiting convex edge is larger than the outer diameter of the sleeve.

3. A flameproof valve body as claimed in claim 2, characterised in that The shell is provided with a sealing end face for abutting against the sealing gasket, the annular groove extends to the sealing end face; one end of the sealing gasket for connecting with the sealing end face is a first end face; the maximum axial distance between the annular limiting convex edge and the first end face is smaller than the axial height of the annular groove.

4. A flameproof valve body as claimed in claim 3, characterised in that An annular clearance groove is arranged between the annular limiting convex edge and the first end face.

5. An explosion relief valve body according to any one of claims 1 to 4, wherein The sealing gasket is made of rubber.

6. A rupture disc valve body as defined in claim 1, wherein, One end of the sealing gasket in the water outlet direction is a second end face, the inner diameter of the second end face is 12-14 mm, and the outer diameter is 16.5-18 mm.

7. A rupture disc valve body as defined in claim 1 wherein, The shell is further provided with a threaded connection part.

8. A flameproof valve body as claimed in claim 7, characterised in that The threaded connection part is provided with external threads, and one end of the threaded connection part is flush with the first end face.

9. An explosion relief valve characterized in that The application further relates to a valve body comprising the valve body as claimed in any one of claims 1-8 and an explosion-proof assembly arranged in the valve body.

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