Improved anti-explosion valve and compact pipe joint

Abstract

The utility model discloses an improved anti-explosion valve which comprises a shell and an anti-explosion assembly, a water passing inner cavity is formed in the shell, and the anti-explosion assembly is installed in the water passing inner cavity. A water inlet side and a water outlet side which are communicated with the water passing inner cavity are respectively arranged at two ends of the shell; a limiting ring is arranged on the outer wall, close to the water inlet side, of the shell, a first sealing gasket arranged on the shell in a sleeving mode is arranged on the end face, facing the water outlet side, of the limiting ring, and the part, between the first sealing gasket and the water outlet side, of the shell is an extending-in section capable of extending into a water inlet pipe of the water valve. An external thread used for being in threaded connection with a pipe joint is arranged on the periphery of the limiting ring; or the shell between the limiting ring and the water inlet side is provided with an external thread used for being in threaded connection with the pipe joint. Compared with the prior art, the requirement for the axial length of the pipe joint can be greatly reduced, the defect that a traditional anti-explosion valve needs to occupy large space on the inner side of the internal thread is overcome, and the anti-explosion valve is suitable for being installed on a thin wall.

Description

Technical Field

[0001] This utility model relates to the field of kitchen and bathroom technology, specifically to an improved explosion-proof valve and a compact pipe joint. Background Technology

[0002] Existing explosion-proof valves are installed inside pipe joints in the tap water network. Angle valves, faucets, and other water valves are then installed inside the pipe joints and abut against the sealing ring at the outlet of the explosion-proof valve. This ensures that if the water valve breaks, it can promptly block the water flow and prevent flooding losses caused by failure to detect the problem in time.

[0003] However, this explosion-proof valve requires the inner cavity of the pipe joint to be occupied, which increases the depth of the pipe joint perpendicular to the wall. As a result, it cannot be installed on thin walls. Even if it is forcibly installed, the outer end of the pipe joint will be exposed more on the wall surface.

[0004] In view of this, the inventor conducted in-depth research on the aforementioned deficiencies in the prior art, which led to the creation of this case. Utility Model Content

[0005] The main purpose of this utility model is to provide an improved explosion-proof valve and a compact pipe joint, which solves the problem mentioned in the background art of the pipe joint protruding from the wall surface due to excessive depth during the installation of the explosion-proof valve.

[0006] To achieve the above objectives, the solution of this utility model is:

[0007] An improved explosion-proof valve includes a housing and an explosion-proof component. The housing has a water-passing cavity, and the explosion-proof component is installed inside the water-passing cavity. The two ends of the housing are an inlet side and an outlet side communicating with the water-passing cavity, respectively. A limiting ring is provided on the outer wall of the housing near the inlet side. A first sealing gasket is provided on the end face of the limiting ring facing the outlet side and is sleeved on the housing. The housing between the first sealing gasket and the outlet side is an extension section of the inlet pipe that can extend into the valve.

[0008] The outer circumference of the limiting ring is provided with an external thread for threaded connection with the pipe fitting; or, the housing between the limiting ring and the water inlet side is provided with an external thread for threaded connection with the pipe fitting.

[0009] Furthermore, the axial length of the extended section accounts for more than half of the total axial length of the housing.

[0010] Furthermore, the explosion-proof component includes a movable core and a spring. The water-passing inner cavity has a water-passing hole. One end of the spring abuts against the outer periphery of the water-passing hole, and the other end of the spring abuts against the movable core from the water outlet side to the water inlet side. The movable core can move back and forth in the water-passing inner cavity with changes in water pressure to block or open the water-passing hole.

[0011] Furthermore, a second sealing ring is provided on the end face of the limiting ring facing the water inlet side, and the second sealing ring is sleeved on the housing; the housing is provided with a sealing groove for accommodating the second sealing ring.

[0012] Furthermore, one end of the external thread is flush with the water inlet side of the housing.

[0013] Furthermore, a second sealing ring is fitted on the housing between the external thread and the end face of the limiting ring facing the water inlet side; the housing is provided with a sealing groove for accommodating the second sealing ring.

[0014] Furthermore, the housing includes a water inlet end cap threaded to the water inlet side, and the water inlet end cap is provided with a water inlet hole.

[0015] A compact pipe fitting includes a pipe fitting body and the aforementioned improved explosion-proof valve. The outlet end of the pipe fitting body is provided with a first internal thread, and the external thread on the housing is threadedly connected to the first internal thread.

[0016] Furthermore, a second internal thread for connecting to a water valve is provided on the outer side of the first internal thread, and the minor diameter of the second internal thread is larger than the major diameter of the first internal thread.

[0017] Furthermore, after the first internal thread is connected to the external thread, the water outlet of the housing is completely contained within the pipe fitting body.

[0018] With the above structure, the improved explosion-proof valve and compact pipe joint of this utility model have at least the following beneficial effects:

[0019] 1. By setting the external thread of the housing between the limiting ring or fiber ring and the water inlet side, the extension section near the water outlet side can extend into the water inlet pipe of the angle valve or faucet, ensuring a firm connection between the water valve inlet pipe and the pipe joint, while reducing the space occupied deep within the pipe joint; thus, after the housing and pipe joint are threadedly connected between the water inlet side and the limiting ring, the housing occupies a small proportion deep within the pipe joint, allowing the pipe joint depth to be smaller, which is suitable for thin-walled pipe joint installation.

[0020] Second, the first sealing gasket serves to seal the end of the water valve inlet pipe, and the second sealing ring seals the outer wall of the housing with the inner wall of the pipe joint. This greatly reduces the chance of leakage and ensures effective use.

[0021] Compared with existing technologies, this invention can greatly reduce the axial length requirement of pipe fittings, overcome the need for traditional explosion-proof valves to occupy a large space on the inner side of the internal thread, and is suitable for installation on thin walls. Attached Figure Description

[0022] Figure 1 This is a cross-sectional structural schematic diagram of the first embodiment of an improved explosion-proof valve according to this utility model.

[0023] Figure 2 This is a three-dimensional structural diagram of a compact pipe fitting.

[0024] Figure 3 This is a three-dimensional sectional view of a compact pipe fitting.

[0025] Figure 4 This is a cross-sectional structural diagram of the first embodiment of the present invention.

[0026] Figure 5 This is a three-dimensional structural diagram of the second embodiment of the present utility model.

[0027] Figure 6 This is a cross-sectional structural diagram of the second embodiment of the present invention.

[0028] Figure 7 This is a cross-sectional structural diagram of the second embodiment of the present invention in use.

[0029] Figure 8 This is a cross-sectional exploded view of the second embodiment of the present invention in its usage state.

[0030] Figure 9 This is a three-dimensional sectional view of the second embodiment of the present invention.

[0031] In the picture:

[0032] Housing 1; Water-passing inner cavity 11; Water inlet side 111; Water outlet side 112; Water passage hole 113; Limiting ring 12; External thread 13; Water inlet end cap 14; Water inlet hole 141; Water outlet end cap 15; Extension section 16; Explosion-proof component 2; Movable core 21; Spring 22; First sealing gasket 3; Second sealing ring 4; Sealing groove 41; Pipe joint body 210; First internal thread 220; Second internal thread 230; Water inlet pipe 100; Pipe joint 200. Detailed Implementation

[0033] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0034] like Figures 1 to 9As shown, this is an improved explosion-proof valve according to the present invention, including a housing 1 and an explosion-proof component 2. The housing 1 has a water-passing inner cavity 11, and the explosion-proof component 2 is installed in the water-passing inner cavity 11. The two ends of the housing 1 are an inlet side 111 and an outlet side 112 that are connected to the water-passing inner cavity 11, respectively. A limiting ring 12 is provided on the outer wall of the housing 1 near the inlet side 111. A first sealing gasket 3 is provided on the end face of the limiting ring 12 facing the outlet side 112 and is sleeved on the housing 1. The housing 1 between the first sealing gasket 3 and the outlet side 112 is an extension section 16 of the inlet pipe 100 that can extend into the water valve.

[0035] The outer circumference of the limiting ring 12 is provided with an external thread 13 for threaded connection with the pipe fitting 200, such as Figure 1 As shown, this is the first embodiment of the present invention; or, the housing 1 between the limiting ring 12 and the water inlet side 111 is provided with an external thread 13 for threaded connection with the pipe joint, as shown. Figure 5 and 6 As shown, this is a second embodiment of the present invention. Preferably, the axial length of the extended section 16 accounts for more than half of the total axial length of the housing 1.

[0036] Thus, the improved explosion-proof valve and compact pipe joint of this utility model, by setting the external thread 13 of the housing 1 between the limiting ring 12 or the fiber ring and the water inlet side 111, allows the extension section near the water outlet side 112 to extend into the water inlet pipe 100 of the angle valve or faucet, ensuring a firm connection between the water inlet pipe 100 and the pipe joint while reducing the space occupied deep within the pipe joint; thus, after the housing 1 between the water inlet side 111 and the limiting ring 12 is threadedly connected to the pipe joint, the housing 1 deep within the pipe joint occupies a small proportion, allowing the depth of the pipe joint to be smaller, which is suitable for installation in thin-walled pipe joints.

[0037] Preferably, the explosion-proof component 2 includes a movable core 21 and a spring 22. The water-passing inner cavity 11 has a water-passing hole 113. One end of the spring 22 abuts against the outer periphery of the water-passing hole 113, and the other end of the spring 22 abuts against the movable core 21 from the water outlet side to the water inlet side. The movable core 21 can move back and forth in the water-passing inner cavity 11 with changes in water pressure to block or open the water-passing hole 113.

[0038] Preferably, a second sealing ring 4 is provided on the end face of the limiting ring 12 facing the water inlet side 111, and the second sealing ring 4 is sleeved on the housing 1; the housing 1 is provided with a sealing groove 41 for accommodating the second sealing ring 4. The first sealing gasket 3 serves to seal the end of the water valve inlet pipe 100, and the second sealing ring 4 seals the outer wall of the housing 1 with the inner wall of the pipe joint. This greatly reduces the chance of leakage and ensures the effectiveness of use.

[0039] Preferably, such as Figure 6 As shown, one end of the external thread 13 is flush with the water inlet side 111 of the housing 1, which minimizes the space occupied by the internal thread and reduces the axial length of the pipe joint as much as possible.

[0040] like Figure 6 As shown, a second sealing ring 4 is fitted onto the housing 1 between the external thread 13 and the end face of the limiting ring 12 facing the water inlet side 111; the housing 1 is provided with a sealing groove 41 for accommodating the second sealing ring 4. The sealing groove 41 serves to limit the second sealing ring 4 and prevent the second sealing ring 4 from slipping off.

[0041] Preferably, the housing 1 includes a water inlet end cap 14 threadedly connected to the water inlet side 111, and the water inlet end cap 14 is provided with a water inlet hole 141. This allows the explosion-proof component 2 to be installed from the water inlet side 111. After the explosion-proof component 2 is installed, the water inlet end cap 14 is threadedly locked onto the housing 1. Alternatively, it can be... Figure 6 As shown, a threaded, removable outlet cap 15 structure is provided on the outlet side 112 of the housing 1.

[0042] This utility model also provides a compact pipe fitting 200, including a pipe fitting body 210 and the aforementioned improved explosion-proof valve. The outlet end of the pipe fitting body 210 is provided with a first internal thread 220, and the external thread 13 on the housing 1 is threadedly connected to the first internal thread 220. Figure 4 As shown, this utility model can be used to install both long (length H1) and short (length H2) pipe fittings.

[0043] Preferably, such as Figure 8 As shown, a second internal thread 230 for connecting to a water valve is provided on the outer side of the first internal thread 220. The minor diameter of the second internal thread 230 is larger than the major diameter of the first internal thread 220. The first internal thread 220 and the second internal thread 230, which are in two sections, are used to connect the housing 1 and the water valve, respectively. The water inlet pipe 100 of the water supply valve passes through the annular space between the extension section and the second internal thread 230, and the end of the water inlet pipe 100 abuts against the first sealing gasket 3 to achieve a seal.

[0044] Preferably, such as Figure 4 and Figure 7As shown, after the first internal thread 220 is connected to the external thread 13, the water outlet of the housing 1 is completely contained within the pipe fitting body 210. Thus, the pipe fitting body 210 and the explosion-proof valve can be assembled into a unit at the factory for sale. The water outlet of the housing 1 is completely contained within the pipe fitting body, and the explosion-proof valve does not increase the packaging volume, making it convenient to place it into the existing cardboard box for packaging.

[0045] Compared with existing technologies, this invention can greatly reduce the axial length requirement of pipe fittings, overcome the need for traditional explosion-proof valves to occupy a large space on the inner side of the internal thread, and is suitable for installation on thin walls.

[0046] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. An improved explosion-proof valve, characterized in that, The device includes a housing and an explosion-proof component. The housing has a water-passing cavity, and the explosion-proof component is installed inside the water-passing cavity. The two ends of the housing are an inlet side and an outlet side, respectively, which are connected to the water-passing cavity. A limiting ring is provided on the outer wall of the housing near the inlet side. A first sealing gasket is provided on the end face of the limiting ring facing the outlet side and is fitted onto the housing. The housing between the first sealing gasket and the outlet side is an extension section of the inlet pipe that can extend into a water valve. The outer circumference of the limiting ring is provided with an external thread for threaded connection with the pipe fitting; or, the housing between the limiting ring and the water inlet side is provided with an external thread for threaded connection with the pipe fitting.

2. The improved explosion-proof valve as described in claim 1, characterized in that, The axial length of the extended section accounts for more than half of the total axial length of the housing.

3. An improved explosion-proof valve as described in claim 2, characterized in that, The explosion-proof component includes a movable core and a spring. The water passage cavity has a water passage hole. One end of the spring abuts against the outer periphery of the water passage hole, and the other end of the spring abuts against the movable core from the water outlet side to the water inlet side. The movable core can move back and forth in the water passage cavity with changes in water pressure to block or open the water passage hole.

4. An improved explosion-proof valve as described in claim 2, characterized in that, A second sealing ring is provided on the end face of the limiting ring facing the water inlet side, and the second sealing ring is sleeved on the housing; the housing is provided with a sealing groove for accommodating the second sealing ring.

5. An improved explosion-proof valve as described in claim 2, characterized in that, One end of the external thread is flush with the water inlet side of the housing.

6. An improved explosion-proof valve as described in claim 2, characterized in that, A second sealing ring is fitted on the housing between the external thread and the end face of the limiting ring facing the water inlet side; the housing is provided with a sealing groove for accommodating the second sealing ring.

7. An improved explosion-proof valve as described in claim 2, characterized in that, The housing includes a water inlet end cap threaded to the water inlet side, and the water inlet end cap is provided with a water inlet hole.

8. A compact pipe fitting, characterized in that, The device includes a pipe fitting body and an improved explosion-proof valve as described in any one of claims 1-7, wherein the outlet end of the pipe fitting body is provided with a first internal thread, and the external thread on the housing is threadedly connected to the first internal thread.

9. A compact pipe fitting as described in claim 8, characterized in that, The outer side of the first internal thread is provided with a second internal thread for connecting to a water valve, and the minor diameter of the second internal thread is larger than the major diameter of the first internal thread.

10. A compact pipe fitting as described in claim 8, characterized in that, After the first internal thread is connected to the external thread, the water outlet of the housing is completely contained within the pipe fitting body.

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