Tooth ring clamping and pressing check valve
Through the compression connection method, the sealing ring and gear ring structure are used to solve the problem of inconvenient connection between the check valve fittings and the pipe, and achieve a convenient and efficient sealing effect.
Patent Information
- Application Number
- CN202423183898.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-23
AI Technical Summary
The connection between existing check valve fittings and pipes is cumbersome and inefficient, mainly due to the threaded connection method, which leads to inconvenience in connection.
The clamping connection method is adopted to achieve the fastening and sealing of the pipe and the check valve fitting through the sealing component and the clamping component, including the design of the sealing ring and the gear ring. The inner wall of the sealing ring is in close contact with the outer wall of the pipe, and the convex teeth of the gear ring bite and hold the pipe tightly.
It realizes convenient connection and efficient sealing between check valve fittings and pipes, and improves connection efficiency, sealing reliability and stability.
Smart Images
Figure CN223459966U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to check valve pipe fitting technical field, specifically, relate to a tooth ring clamping check valve. BACKGROUND
[0002] Check valve pipe fitting is used to install in pipeline system and is used to prevent the valve body type of fluid backflow, the check valve pipe fitting on the market at present mainly includes pipe body and valve core subassembly, valve core subassembly installs inside the pipe body, when fluid is positive to flow through check valve pipe fitting, valve core subassembly can open, when fluid wants to flow through check valve pipe fitting reversely, valve core subassembly can cut off, to be able to realize the purpose of fluid unidirectional flow, however, the check valve pipe fitting on the market at present is connected with pipe material through the mode of threaded connection, this needs to open the thread on the end of pipe material, subsequently again the end of check valve pipe fitting is connected with the end of pipe material threaded, to exist check valve pipe fitting and pipe material connection troublesome and the shortcoming of low connection efficiency. SUMMARY
[0003] The utility model wants to solve the technical problem to provide a tooth ring clamping check valve, it has with pipe material's end connection convenient and the advantage that connection efficiency is high.
[0004] The utility model provides a tooth ring clamping check valve, including pipe body and valve core subassembly, the left end of pipe body forms water inlet end, the right end of pipe body forms water outlet end, valve core subassembly installs inside the pipe body, the pipe body at water inlet end and water outlet end forms clamping socket, and the inner side of each clamping socket is connected with sealing assembly and clamping assembly gradually from inside to outside, when the end of pipe material passes through clamping assembly and sealing assembly and inserts into pipe body, and after clamping socket is clamped by clamping tool, sealing assembly is used for sealing the gap between clamping socket and pipe material, and clamping assembly is used for holding pipe material to make pipe material and clamping socket fastening.
[0005] The utility model discloses through adopting the above structure, and the both ends of check valve pipe fitting can be fastened with the end of pipe material through clamping connection mode and circumferential sealing, to have check valve pipe fitting and pipe material's end connection convenient and the advantage that connection efficiency is high.
[0006] In a possible implementation, the sealing assembly comprises a sealing ring; the inner side of the clamping socket is provided with an annular embedding groove, the outer edge of the sealing ring is embedded in the annular embedding groove and is circumferentially sealed with the annular embedding groove, and the inner peripheral wall of the sealing ring is tightly sealed with the outer peripheral wall of the pipe; after the pipe end passes through the clamping assembly and the sealing assembly and is inserted into the pipe body, and after the clamping socket is clamped by the clamping tool, the sealing ring can be deformed, at this time, the outer peripheral wall of the sealing ring can be circumferentially sealed with the inner peripheral wall of the annular embedding groove, and the inner peripheral wall of the sealing ring can be tightly sealed with the outer peripheral wall of the pipe, that is, the sealing ring can reliably seal the gap between the clamping socket and the pipe.
[0007] In a possible implementation, the inner peripheral wall of the sealing ring is provided with a plurality of annular protrusions which are spaced apart in the axial direction of the sealing ring, and each annular protrusion is tightly sealed with the outer peripheral wall of the pipe; after the inner peripheral wall of the sealing ring is provided with a plurality of annular protrusions which are spaced apart in the axial direction of the sealing ring, when the sealing ring is extruded, the inner edge of the sealing ring can be more reliably deformed and tightly sealed with the outer wall of the pipe, so that the sealing ring can more reliably seal the gap between the clamping socket and the pipe.
[0008] In a possible implementation, the clamping assembly comprises a stop ring and a gear ring; the inner side of the clamping socket is provided with an annular clamping groove, the stop ring and the gear ring are clamped in the annular clamping groove from inside to outside, a plurality of protrusions are formed on the side wall of the gear ring and are spaced apart in the circumferential direction of the gear ring, each protrusion faces the middle part of the gear ring, and the plurality of protrusions are used to engage the outer wall of the pipe to tightly hold the pipe; after the pipe end passes through the clamping assembly and the sealing assembly and is inserted into the pipe body, and after the clamping socket is clamped by the clamping tool, the plurality of protrusions on the gear ring can engage the outer wall of the pipe to tightly hold the pipe, so that the pipe and the clamping socket can be fastened; in addition, through the arrangement of the stop ring, when the gear ring is extruded and deformed, the stop ring can support the gear ring to avoid damage to the sealing assembly, and under the action of the stop ring, the gear ring can be more reliably contracted inward and tightly hold the pipe; in addition, the protrusions on the inner wall of the gear ring are in a single row structure, so that when the gear ring is extruded, each protrusion has greater engagement force to reliably engage and tightly hold the pipe.
[0009] In a possible implementation, the outer end of the gear ring is provided with an indicating notch; after the gear ring is provided with the indicating notch, when the gear ring is assembled with the clamping socket, the installation direction of the gear ring can be identified according to the indicating notch to avoid the situation that the gear ring is installed in reverse.
[0010] In a possible implementation, a ring-shaped notch is arranged on the pipe body inside each clamping socket, and the inner side of the notch forms a first annular step for abutting against the end of the pipe; after the end of the pipe passes through the clamping assembly and the sealing assembly and is inserted into the pipe body, the first annular step can abut against the end of the pipe, thereby achieving axial positioning of the pipe body and the pipe and prompting the installer that the pipe body and the pipe have been inserted into position.
[0011] In a possible implementation, the valve core assembly includes a valve sleeve, a conical valve core, a spring, and a nut; the valve sleeve is embedded in the pipe body, the middle part of the left end of the conical valve core is coaxially provided with a movable rod, the movable rod extends out of the valve sleeve after penetrating through the middle part of the left end of the valve sleeve and is threadedly fastened with the nut, the spring is sleeved on the outside of the movable rod, and the two ends of the spring abut against the nut and the left end of the valve sleeve, respectively; the left end of the valve sleeve is provided with a plurality of water passing holes distributed at intervals in the circumferential direction of the valve sleeve, and the inner wall of the right end of the valve sleeve is provided with an annular taper surface; the spring is used to apply a spring force to the conical valve core to move towards the valve sleeve, so that the conical valve core tightly seals against the annular taper surface; after the valve core assembly is used, when the fluid pressure at the right end of the pipe body is lower than the fluid pressure at the left end of the pipe body, the conical valve core can be pushed from left to right by the fluid, at this time, a gap can be generated between the conical valve core and the valve sleeve, and the fluid can flow through the gap between the conical valve core and the valve sleeve, i.e., the fluid can flow from the left end of the pipe body to the right end of the pipe body; when the water at the right end of the pipe body stops or the fluid pressure at the right end of the pipe body is higher than the fluid pressure at the left end of the pipe body, the valve core assembly can move left under the action of the spring and reset, at this time, the conical valve core can tightly seal against the annular taper surface, i.e., the fluid can be prevented from flowing from right to left through the pipe body, thereby achieving the purpose of check valve; in addition, after the valve sleeve is embedded with the pipe body, the outer peripheral wall of the valve sleeve body can tightly seal against the inner peripheral wall of the pipe body.
[0012] In a possible implementation, an annular flange is arranged on the outer wall of the right end of the valve sleeve, a second annular step is arranged on the inner wall of the pipe body, and the annular flange is embedded and supported on the second annular step; after the structure is adopted, the valve sleeve can be reliably fixed on the inner side of the pipe body, and when the fluid pressure at the right end of the pipe body is higher than the fluid pressure at the left end of the pipe body, the valve sleeve can be prevented from being separated from the pipe body, that is, the spool assembly can be prevented from being separated from the pipe body, and thus the check function of the fluid can be reliably realized; in addition, when the check valve pipe is normally used, that is, when the water at the right end of the pipe body is normally discharged so that the fluid pressure at the right end of the pipe body is lower than the fluid pressure at the left end of the pipe body, the conical spool can be pushed by the fluid from left to right, at this time, the spool assembly is opened, and after the spool assembly is opened, the pressure difference of the fluid on both sides of the spool assembly is reduced, so that the valve sleeve cannot be separated from the pipe body even when the fluid flows through the spool assembly. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a sectional view of the utility model. DETAILED DESCRIPTION
[0014] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can adjust them as needed to adapt to specific application occasions.
[0015] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to specific circumstances.
[0016] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0017] The present application will be further described in detail below in combination with the drawings and specific embodiments.
[0018] Referring to Figure 1 As shown in the drawings, the embodiment of the present application discloses a tooth ring clamping check valve, which comprises a pipe body 1 and a valve core assembly; the left end of the pipe body 1 forms a water inlet end, the right end of the pipe body 1 forms a water outlet end, and the valve core assembly is installed inside the pipe body 1; the pipe body 1 at the water inlet end and the water outlet end both form a clamping socket 11, and the inner side of each clamping socket 11 is sequentially connected with a sealing assembly and a clamping assembly from inside to outside; when the end of the pipe material passes through the clamping assembly and the sealing assembly and is inserted into the pipe body 1, and after the clamping socket 11 is clamped by a clamping tool, the sealing assembly is used to seal the gap between the clamping socket 11 and the pipe material, and the clamping assembly is used to tightly hold the pipe material so as to fasten the pipe material and the clamping socket 11.
[0019] The sealing assembly comprises a sealing ring 2; the inner side of the clamping socket 11 is provided with an annular embedding groove 12, the outer edge of the sealing ring 2 is embedded in the annular embedding groove 12 and is circumferentially sealed with the annular embedding groove 12, and the inner peripheral wall of the sealing ring 2 is tightly sealed with the outer peripheral wall of the pipe material; after the structure is adopted, when the end of the pipe material passes through the clamping assembly and the sealing assembly and is inserted into the pipe body, and after the clamping socket is clamped by the clamping tool, the sealing ring can be deformed, at this time, the outer peripheral wall of the sealing ring can be circumferentially sealed with the inner peripheral wall of the annular embedding groove, and the inner peripheral wall of the sealing ring can be tightly sealed with the outer peripheral wall of the pipe material, that is, the sealing ring can reliably seal the gap between the clamping socket and the pipe material.
[0020] The inner peripheral wall of the sealing ring 2 is provided with a plurality of annular protrusions 21 which are spaced apart along the axial direction of the sealing ring 2, and each annular protrusion 21 is tightly sealed with the outer peripheral wall of the pipe material; after the plurality of annular protrusions which are spaced apart along the axial direction of the sealing ring are arranged on the inner peripheral wall of the sealing ring, when the sealing ring is extruded, the inner edge of the sealing ring can be more reliably deformed and tightly sealed with the outer wall of the pipe material, so that the sealing ring can more reliably seal the gap between the clamping socket and the pipe material.
[0021] The clamping assembly comprises a check ring 3 and a gear ring 4; the inner side of the clamping socket 11 is provided with an annular clamping groove 13, the check ring 3 and the gear ring 4 are clamped in the annular clamping groove 13 from inside to outside, a plurality of protrusions 41 distributed at intervals in the circumferential direction of the gear ring 4 are punched on the side wall of the gear ring 4, each protrusion 41 faces the middle part of the gear ring 4, and the plurality of protrusions 41 are used to engage the outer wall of the pipe to hold the pipe; after the pipe is inserted into the pipe body through the clamping assembly and the sealing assembly at the end of the pipe, and the clamping socket is clamped by the clamping tool, the plurality of protrusions on the gear ring can engage the outer wall of the pipe to hold the pipe, so that the pipe and the clamping socket can be fastened; in addition, the check ring can support the gear ring when the gear ring is extruded and deformed, so as to avoid damage to the sealing assembly, and under the action of the check ring, the gear ring can be more reliably retracted inward and hold the pipe; in addition, the protrusions on the inner wall of the gear ring are single-row structures, so that each protrusion has greater engagement force when the gear ring is extruded, so as to reliably engage and clamp the pipe.
[0022] An indicating notch 42 is arranged on the outer end of the gear ring 4; by arranging the indicating notch on the outer end of the gear ring, the installation direction of the gear ring can be identified according to the indicating notch when the gear ring is assembled with the clamping socket, so as to avoid the situation that the gear ring is installed in reverse.
[0023] An annular notch 14 is arranged on the inner side of each clamping socket 11, the inner side of the annular notch 14 forms a first annular step 15, and the first annular step 15 is used to abut against the end of the pipe; after the end of the pipe is inserted into the pipe body through the clamping assembly and the sealing assembly, the first annular step can abut against the end of the pipe, which can realize axial positioning of the pipe body and the pipe, and can prompt the installer that the pipe body and the pipe have been inserted into position.
[0024] The valve core assembly comprises a valve sleeve 5, a conical valve core 6, a spring 7 and a nut 8; the valve sleeve 5 is embedded in the inner part of the pipe body 1, the middle part of the left end of the conical valve core 6 is coaxially provided with a movable rod 61, the movable rod 61 movably penetrates the middle part of the left end of the valve sleeve 5 and extends out of the valve sleeve 5 and is threadedly fastened with the nut 8, the spring 7 is sleeved on the outer part of the movable rod 61, the two ends of the spring 7 are respectively abutted against the nut 8 and the left end of the valve sleeve 5, the left end of the valve sleeve 5 is provided with a plurality of water through holes 51 which are distributed at intervals in the circumferential direction of the valve sleeve 5, and the inner wall of the right end of the valve sleeve 5 is provided with an annular taper surface 52; the spring 7 is used to apply a spring force to the conical valve core 6 to move towards the side of the valve sleeve 5 so that the conical valve core 6 is tightly sealed with the annular taper surface 52; after the valve core assembly is used in this way, when the fluid pressure at the right end of the pipe body is lower than the fluid pressure at the left end of the pipe body, the conical valve core can be pushed by the fluid from left to right, at this time, a gap can be generated between the conical valve core and the valve sleeve, and the fluid can flow through the gap between the conical valve core and the valve sleeve, that is, the fluid can flow from the left end of the pipe body to the right end of the pipe body; when the water at the right end of the pipe body is stopped or the fluid pressure at the right end of the pipe body is higher than the fluid pressure at the left end of the pipe body, the valve core assembly can be moved leftwards and reset under the action of the spring, at this time, the conical valve core can be tightly sealed with the annular taper surface, that is, the fluid can be prevented from flowing from right to left through the pipe body, so that the purpose of check valve is achieved; in addition, after the valve sleeve is embedded with the pipe body, the outer peripheral wall of the valve sleeve body can be tightly sealed with the inner peripheral wall of the pipe body.
[0025] The outer wall of the right end of the valve sleeve 5 is provided with an annular convex edge 53, the inner wall of the pipe body 1 is provided with a second annular step 16, and the annular convex edge 53 is embedded and supported on the second annular step 16; after this structure is used, the valve sleeve can be reliably fixed on the inner side of the pipe body, in addition, when the fluid pressure at the right end of the pipe body is higher than the fluid pressure at the left end of the pipe body, the valve sleeve can be prevented from being separated from the pipe body, that is, the valve core assembly can be prevented from being separated from the pipe body, that is, the check valve for fluid can be reliably achieved; in addition, when the check valve pipe is normally used, that is, when the water at the right end of the pipe body is normally discharged so that the fluid pressure at the right end of the pipe body is lower than the fluid pressure at the left end of the pipe body, the conical valve core can be pushed by the fluid from left to right, at this time, the valve core assembly is opened, after the valve core assembly is opened, the pressure difference of the fluid on both sides of the valve core assembly is reduced, so that the valve sleeve can be prevented from being separated from the pipe body even when the fluid flows through the valve core assembly.
[0026] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A tooth ring press check valve, comprising a pipe body (1) and a valve core assembly; the left end of the pipe body (1) forms a water inlet end, the right end of the pipe body (1) forms a water outlet end, and the valve core assembly is installed inside the pipe body (1); characterized in that: The pipe body (1) at the water inlet end and the water outlet end is formed with a clamping socket (11), and the inner side of each clamping socket (11) is sequentially connected with a sealing assembly and a clamping assembly from inside to outside; when the end of the pipe material passes through the clamping assembly and the sealing assembly and is inserted into the pipe body (1), and after the clamping socket (11) is clamped by a clamping tool, the sealing assembly is used to seal the gap between the clamping socket (11) and the pipe material, and the clamping assembly is used to tightly hold the pipe material to fasten the pipe material and the clamping socket (11).
2. The snap ring check valve according to claim 1, wherein: The sealing assembly comprises a sealing ring (2); the inner side of the clamping socket (11) is provided with an annular embedding groove (12), the outer edge of the sealing ring (2) is embedded in the annular embedding groove (12) and is circumferentially sealed with the annular embedding groove (12), and the inner peripheral wall of the sealing ring (2) is tightly sealed with the outer peripheral wall of the pipe material.
3. The snap ring check valve of claim 2, wherein: The inner peripheral wall of the sealing ring (2) is provided with a plurality of annular protruding ribs (21) which are spaced apart in the axial direction of the sealing ring (2), and each annular protruding rib (21) is tightly sealed with the outer peripheral wall of the pipe material.
4. The snap ring check valve of any of claims 1-3, wherein: The clamping assembly comprises a check ring (3) and a gear ring (4); the inner side of the clamping socket (11) is provided with an annular clamping groove (13), and the check ring (3) and the gear ring (4) are clamped in the annular clamping groove (13) from inside to outside; the side wall of the gear ring (4) is punched to form a plurality of protruding teeth (41) which are spaced apart in the circumferential direction of the gear ring (4), each protruding tooth (41) faces the middle part of the gear ring (4), and the plurality of protruding teeth (41) are used to engage the outer wall of the pipe material to tightly hold the pipe material.
5. The snap ring check valve of claim 4, wherein: The outer end of the gear ring (4) is provided with an indicating notch (42).
6. The snap ring check valve of claim 1, wherein: The pipe body (1) at the inner side of each clamping socket (11) is provided with an annular-shaped necking portion (14), the inner side of the necking portion (14) is formed with a first annular step (15), and the first annular step (15) is used to abut against the end of the pipe material.
7. The snap ring check valve of claim 1, wherein: The valve core assembly comprises a valve sleeve (5), a conical valve core (6), a spring (7) and a nut (8); the valve sleeve (5) is embedded in the inner part of the pipe body (1), the middle part of the left end of the conical valve core (6) is coaxially provided with a movable rod (61), the movable rod (61) is movably penetrated through the middle part of the left end of the valve sleeve (5) and protrudes out of the valve sleeve (5) and is threadedly fastened with the nut (8), the spring (7) is sleeved on the outside of the movable rod (61), the two ends of the spring (7) respectively abut against the nut (8) and the left end of the valve sleeve (5), the left end of the valve sleeve (5) is provided with a plurality of water through holes (51) which are spaced apart in the circumferential direction of the valve sleeve (5), and the inner wall of the right end of the valve sleeve (5) is provided with an annular taper surface (52); the spring (7) is used to apply a spring force to the conical valve core (6) to move to the side of the valve sleeve (5) so that the conical valve core (6) is tightly sealed with the annular taper surface (52).
8. The snap ring check valve of claim 7, wherein: An annular flange (53) is arranged on the outer wall of the right end of the valve sleeve (5), and a second annular step (16) is arranged on the inner wall of the pipe body (1), and the annular flange (53) is embedded and supported on the second annular step (16).