Seal assembly tool and seal assembly mechanism
By applying sealing assembly fixtures and stamping components, the sealing performance and space utilization of pressure control valves were solved, achieving a sealed connection between the limiting valve and the valve block, reducing production costs and improving space utilization.
Patent Information
- Application Number
- CN202423113643.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing pressure control valves have poor threaded connection sealing performance, require high surface machining precision, occupy internal space of the valve block, and increase production costs.
A sealed assembly fixture, including a stamping assembly and a press, is used. The stamping angle of the stamping parts deforms the press-in shoulder and seals it with the pressure shoulder, reducing the surface machining accuracy requirements of the valve block and the limiting valve and improving space utilization.
This achieves a sealed connection between the limiting valve and the valve block, improves the sealing effect, prevents fluid leakage, reduces production costs, and increases the utilization rate of the internal space of the valve block.
Smart Images
Figure CN223544545U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressure control valve assembly technology, and in particular to a sealing assembly tooling and sealing assembly mechanism. Background Technology
[0002] A pressure control valve is a control device used in pipeline systems to limit fluid pressure. It stabilizes the pressure within the pipeline through its own regulating mechanism, ensuring the normal operation of the system. A pressure control valve consists of a valve block and a limiting valve. The valve block has mounting holes, and the limiting valve is assembled into these holes. Both the limiting valve and the valve block are made of metal. The sealing effect between the limiting valve and the valve block has a significant impact on the performance of the pressure control valve.
[0003] Currently, threads are typically machined on the sidewall of the mounting hole and on the limiting valve, allowing the limiting valve to connect to the mounting hole via threads for a sealed assembly. However, threaded connections have poor sealing performance, require high surface finish, and increase production costs. Furthermore, the threads themselves have a certain width, and need to extend a certain length to ensure a seal, occupying installation space inside the valve block and hindering the utilization of the space within the valve block.
[0004] Therefore, there is an urgent need to propose a sealing assembly tooling and sealing assembly mechanism to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a sealing assembly tooling and sealing assembly mechanism to achieve sealing assembly between the limiting valve and the valve block, improve the sealing effect, prevent fluid leakage, reduce the surface machining accuracy requirements of the valve block and the limiting valve, reduce production costs, and improve the space utilization rate inside the valve block.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] A sealing assembly fixture is used to assist in the sealing assembly of a limiting valve and a valve block. The limiting valve includes a body and a pressure-bearing shoulder protruding from the body. The valve block has a bearing groove and a mounting hole that are connected sequentially from top to bottom. The lower part of the body is installed in the mounting hole. The pressure-bearing shoulder is located in the bearing groove. The side wall of the bearing groove forms a press-in shoulder, and the height of the pressure-bearing shoulder is lower than the height of the press-in shoulder. The sealing assembly fixture includes a stamping assembly, which includes a stamped part. The stamped part has a positioning groove. The upper part of the body can be inserted into the positioning groove. The lower end of the stamped part can abut against the press-in shoulder. The lower end face of the stamped part gradually slopes from the outside to the inside and from the bottom to the top, forming a stamping angle α.
[0008] Furthermore, 3°≤a≤8°.
[0009] Furthermore, the outer diameter of the lower end of the stamped part gradually decreases from top to bottom.
[0010] Furthermore, the stamping assembly also includes a positioning member and an elastic member. The positioning member is slidably disposed in the positioning groove along the axial direction of the stamping member for abutting against the body. The elastic member is disposed between the positioning member and the stamping member.
[0011] Furthermore, the sealing assembly tooling also includes a guide seat, on which a guide hole is provided extending axially along the limiting valve, and the stamped part is slidably fitted into the guide hole.
[0012] Furthermore, the stamping part includes a stamping portion and a limiting portion. The stamping portion is slidably connected to the guide hole, and the limiting portion is disposed at the upper end of the stamping portion. The sealing assembly fixture also includes a limiting member, which is located between the guide seat and the limiting portion. When the lower end of the stamping portion abuts against the pressing shoulder, there is a distance b between the limiting portion and the limiting member.
[0013] Furthermore, the height difference between the pressed-in shoulder and the pressed-on shoulder is n.
[0014] Furthermore, the sealing assembly fixture also includes a base, which is disposed below the guide hole and is used to support the valve block.
[0015] Furthermore, the base is provided with a clearance hole, and the bottom of the valve block can be inserted and engaged with the clearance hole.
[0016] A sealing assembly mechanism includes a press and a sealing assembly fixture as described above, wherein the press is used to drive the stamping part to stamp the press-in shoulder, thereby deforming the press-in shoulder to form a sealing connection with the press-on shoulder.
[0017] The beneficial effects of this utility model are:
[0018] This utility model provides a sealing assembly fixture and sealing assembly mechanism for assisting in the sealing assembly of a limiting valve and a valve block. The limiting valve includes a body and a pressure-bearing shoulder protruding from the body. The valve block has a bearing groove and a mounting hole that are connected sequentially from top to bottom. The lower part of the body is installed in the mounting hole. The pressure-bearing shoulder is located in the bearing groove. The side wall of the bearing groove forms a pressing shoulder, and the height of the pressure-bearing shoulder is lower than the height of the pressing shoulder. The sealing assembly fixture includes a stamping assembly, which includes a stamping part. The stamping part has a positioning groove. The upper part of the body can be inserted into the positioning groove. The lower end of the stamping part can abut against the pressing shoulder. The lower end face of the stamping part gradually slopes from the outside to the inside and from the bottom to the top to form a stamping angle. During assembly, the limiting valve is first installed onto the valve block. When the lower part of the body is installed in the mounting hole, the pressure shoulder is located at the bottom of the bearing groove, and the height of the pressure shoulder is lower than the height of the press-in shoulder. Next, the stamped part is fitted onto the upper part of the body, and the lower end of the stamped part abuts against the press-in shoulder. Finally, pressure is applied to the stamped part. Because the lower end of the stamped part has a stamping angle, the press-in shoulder deforms towards the limiting valve under the pressure of the stamped part, thereby achieving a sealing connection with the pressure shoulder. The height of the pressure shoulder is lower than the height of the press-in shoulder, providing deformation space for the press-in shoulder. By applying the sealing assembly fixture of this embodiment, a sealing assembly between the limiting valve and the valve block can be achieved, improving the sealing effect and helping to prevent fluid leakage. It also reduces the surface machining accuracy requirements of the valve block and the limiting valve, reducing production costs. Furthermore, it improves the internal space utilization of the valve block, making it suitable for installation between valve blocks and limiting valves that are small in size and have limited internal installation space. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the limiting valve of this utility model;
[0020] Figure 2 This is a structural schematic diagram of the sealing assembly tooling of this utility model;
[0021] Figure 3 This is a side view of the sealing assembly tooling of this utility model;
[0022] Figure 4 yes Figure 3 Sectional view at point AA;
[0023] Figure 5 This is a schematic diagram of part of the internal structure of the stamped part of this utility model;
[0024] Figure 6 This is a schematic diagram of the internal structure of the valve block before deformation of this utility model;
[0025] Figure 7 This is a schematic diagram of the internal structure of the valve block after deformation according to this utility model.
[0026] In the picture:
[0027] 100, Restriction valve; 110, Body; 120, Pressure shoulder; 200, Valve block; 210, Bearing groove; 220, Mounting hole; 230, Press-in shoulder;
[0028] 1. Stamping assembly; 11. Stamped part; 111. Positioning groove; 112. Stamping section; 113. Limiting section; 114. Mounting groove; 115. Slide groove; 12. Positioning component; 13. Elastic component; 14. Positioning rod; 15. Abutment component;
[0029] 2. Guide seat;
[0030] 3. Limiting components;
[0031] 4. Base; 41. Clearance hole. Detailed Implementation
[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0035] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0036] like Figures 1 to 7 As shown, this embodiment provides a sealing assembly fixture for assisting in the sealing assembly of the limiting valve 100 and the valve block 200. The limiting valve 100 includes a body 110 and a pressure-bearing shoulder 120 protruding from the body 110. The valve block 200 has a bearing groove 210 and a mounting hole 220 connected sequentially from top to bottom. The lower part of the body 110 is installed in the mounting hole 220, and the pressure-bearing shoulder 120 is located in the bearing groove 210. The sidewall of the bearing groove 210 forms... The pressing shoulder 230 is pressed in, and the height of the pressing shoulder 120 is lower than the height of the pressing shoulder 230. The sealing assembly tooling includes a stamping assembly 1, which includes a stamping part 11. The stamping part 11 has a positioning groove 111. The upper part of the body 110 can be inserted and engaged with the positioning groove 111. The lower end of the stamping part 11 can abut against the pressing shoulder 230. The lower end face of the stamping part 11 gradually slopes from the outside to the inside and from the bottom to the top, forming a stamping angle α.
[0037] During assembly, the limiting valve 100 is first installed onto the valve block 200. When the lower part of the body 110 is installed in the mounting hole 220, the pressure shoulder 120 is located at the bottom of the bearing groove 210, and the height of the pressure shoulder 120 is lower than the height of the press-in shoulder 230. Next, the stamping part 11 is fitted onto the upper part of the body 110, and the lower end of the stamping part 11 abuts against the press-in shoulder 230. Finally, pressure is applied to the stamping part 11. Since the lower end of the stamping part 11 has a stamping angle, the press-in shoulder 230 deforms towards the limiting valve 100 under the pressure of the stamping part 11, thereby enabling a sealed connection with the pressure shoulder 120. The height of the pressure shoulder 120 is lower than the height of the press-in shoulder 230, which provides deformation space for the press-in shoulder 230. By applying the sealing assembly tooling of this embodiment, a sealed assembly between the limiting valve 100 and the valve block 200 can be achieved, and the sealing effect can be improved, which is beneficial to preventing fluid leakage; the surface machining accuracy requirements of the valve block 200 and the limiting valve 100 are reduced, thus reducing production costs; and the internal space utilization of the valve block 200 is improved, making it suitable for installation between the valve block 200 and the limiting valve 100, which are small in size and have limited internal installation space.
[0038] Specifically, 3°≤a≤8°, as verified by experiments, can ensure the sealing effect to the greatest extent.
[0039] like Figure 5 As shown, the outer diameter of the lower end of the stamped part 11 gradually decreases from top to bottom, which is equivalent to the outer wall of the lower end of the stamped part 11 gradually tilting from top to bottom and from the outside to the inside, further guiding the pressing shoulder 230 to deform towards the direction of the limiting valve 100, thereby further improving the sealing effect between the pressing shoulder 230 and the pressure shoulder 120.
[0040] like Figure 4 As shown, the stamping assembly 1 also includes a positioning member 12 and an elastic member 13. The positioning member 12 is slidably disposed in the positioning groove 111 along the axial direction of the stamping member 11 for abutting against the body 110. The elastic member 13 is disposed between the positioning member 12 and the stamping member 11. When the stamping member 11 is sleeved on the upper part of the body 110 and the lower end of the stamping member 11 abuts against the press-in shoulder 230, the positioning member 12 can abut against the body 110, thereby restricting the valve 1 along the axial direction of the stamping member 11. Positioning is achieved to prevent the limiting valve 100 from being displaced by impact force during the stamping process, which would affect the sealing effect. By setting an elastic element 13 between the positioning element 12 and the stamping element 11, when the stamping element 11 is stamped downwards, the limiting valve 100 abuts against the positioning element 12, compressing the elastic element 13. The positioning element 12 slides upwards relative to the stamping element 11, maintaining the positioning of the limiting valve 100. This can prevent the positioning element 12 from exerting excessive pressure on the limiting valve 100 and causing damage.
[0041] In this embodiment, the stamping part 11 is also provided with an installation groove 114 and a sliding groove 115. The installation groove 114, the sliding groove 115 and the positioning groove 111 are connected from top to bottom. A positioning rod 14 is connected to the positioning part 12. The positioning rod 14 is slidably connected to the sliding groove 115, and the end of the positioning rod 14 away from the positioning part 12 is detachably connected to an abutment 15. The abutment 15 is used to abut against the bottom of the installation groove 114 to limit the maximum downward displacement of the positioning rod 14. An elastic member 13 is sleeved on the positioning rod 14, and one end of the elastic member 13 abuts against the top wall of the positioning groove 111 and the other end abuts against the positioning part 12, thereby providing the positioning limiting valve 100 with a resisting force for the positioning part 12. With the above arrangement, it is easy to install the positioning part 12 and the elastic member 13 into the stamping part 11, thereby facilitating disassembly and maintenance. The abutment 15 includes, but is not limited to, a limiting nut that is threadedly connected to the positioning rod 14, or a limiting rod that is inserted into the positioning rod 14, etc., which are not limited here.
[0042] In other embodiments, one end of the elastic element 13 is connected to the top wall of the positioning groove 111, and the other end is connected to the positioning element 12, which can also achieve the abutment of the positioning element 12. The elastic element 13 includes, but is not limited to, springs or elastic rubber, etc., and is not limited here.
[0043] like Figures 1-3As shown, the sealing assembly fixture also includes a guide seat 2, on which a guide hole is provided. The stamping part 11 is slidably fitted into the guide hole. Through the sliding fit between the stamping part 11 and the guide hole, the stamping part 11 is guided to move along the axial direction of the limiting valve 100, making the stamping process more stable and reducing the force exerted by the stamping part 11 on the side wall of the limiting valve 100, thus avoiding damage to the limiting valve 100. This further improves the sealing effect and enhances product quality.
[0044] Continue as Figure 4 As shown, the stamping part 11 includes a stamping portion 112 and a limiting portion 113. The stamping portion 112 is slidably connected to the guide hole. The lower end of the stamping portion 112 is provided with the aforementioned stamping angle for stamping the pressing shoulder 230. The limiting portion 113 is provided at the upper end of the stamping portion 112. The sealing assembly tooling also includes a limiting member 3, which is located between the guide seat 2 and the limiting portion 113. When the lower end of the stamping portion 112 abuts against the pressing shoulder 230, there is a distance b between the limiting portion 113 and the limiting member 3, where b>0. When the stamping part 11 is subjected to pressure and moves downward to stamp, the limiting member 3 can abut against the lower end of the limiting portion 113 to limit the stamping depth of the stamping part 11 to b, so as to avoid damage to the valve block 200 and the limiting valve 100 due to excessive stamping depth, and to ensure that the stamping depth is consistent and to guarantee the stability of the sealing performance.
[0045] like Figure 6 and Figure 7 As shown, it can be understood that the maximum deformation height of the press-in shoulder 230 is b, where the height difference between the press-in shoulder 230 and the compressed shoulder 120 is n. This ensures that the deformation of the press-in shoulder 230 is large enough to guarantee a sufficiently large contact area between the deformed press-in shoulder 230 and the pressure shoulder 120, thereby maximizing the sealing effect and preventing damage to the valve block 200 and the limiting valve 100 due to excessive stamping depth.
[0046] In this embodiment, the limiting member 3 is provided with a limiting hole, and the stamping part 112 can slide and cooperate with the limiting hole. The installation can be completed by sleeve of the limiting member 3 on the stamping part 112. The installation is quick and convenient, and the limiting member 3 can be prevented from shifting during the stamping process.
[0047] like Figure 4 As shown, the sealing assembly fixture also includes a base 4, which is located below the guide hole and is used to support the valve block 200. The base 4 can buffer the impact force on the valve block 200 to prevent damage to the valve block 200 or the operating table.
[0048] Furthermore, the base 4 is provided with a clearance hole 41, and the bottom of the valve block 200 can be inserted and engaged with the clearance hole 41, thereby fixing the valve block 200 in the horizontal direction and preventing the valve block 200 from shifting during stamping.
[0049] Furthermore, this embodiment also provides a sealing assembly mechanism, including a press and the sealing assembly fixture in any of the above embodiments. The press is used to drive the stamping part 11 to stamp the pressing shoulder 230, so that the pressing shoulder 230 deforms in the direction closer to the limiting valve 100 following the stamping angle, thereby sealingly connecting with the pressure shoulder 120. By adopting the above sealing assembly fixture, the sealing assembly between the limiting valve 100 and the valve block 200 can be realized, and the sealing effect is improved, which is beneficial to preventing fluid leakage; the surface machining accuracy requirements of the valve block 200 and the limiting valve 100 are reduced, and the production cost is reduced; and the internal space utilization of the valve block 200 is improved, which can be applied to the installation between the valve block 200 and the limiting valve 100, which are small in size and have tight internal installation space.
[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A sealing assembly fixture for assisting in the sealing assembly of a limiting valve (100) and a valve block (200), wherein the limiting valve (100) includes a body (110) and a pressure-bearing shoulder (120) protruding from the body (110), the valve block (200) has a bearing groove (210) and a mounting hole (220) connected sequentially from top to bottom, the lower part of the body (110) is installed in the mounting hole (220), the pressure-bearing shoulder (120) is located in the bearing groove (210), the sidewall of the bearing groove (210) forms a press-in shoulder (230), and the height of the pressure-bearing shoulder (120) is lower than the height of the press-in shoulder (230), characterized in that, The sealing assembly tooling includes a stamping assembly (1), the stamping assembly (1) includes a stamping part (11), the stamping part (11) has a positioning groove (111) inside, the upper part of the body (110) can be inserted and engaged with the positioning groove (111), the lower end of the stamping part (11) can abut against the pressing shoulder (230), and the lower end face of the stamping part (11) gradually slopes from the outside to the inside and from the bottom to the top, forming a stamping angle α.
2. The sealing assembly fixture according to claim 1, characterized in that, 3°≤a≤8°。 3. The sealing assembly fixture according to claim 2, characterized in that, The outer diameter of the lower end of the stamped part (11) gradually decreases from top to bottom.
4. The sealing assembly fixture according to claim 1, characterized in that, The stamping assembly (1) further includes a positioning member (12) and an elastic member (13). The positioning member (12) is slidably disposed in the positioning groove (111) along the axial direction of the stamping member (11) for abutting against the body (110). The elastic member (13) is disposed between the positioning member (12) and the stamping member (11).
5. The sealing assembly tooling according to any one of claims 1 to 4, characterized in that, The sealing assembly tooling also includes a guide seat (2), on which a guide hole is provided that extends axially along the limiting valve (100), and the stamping part (11) is slidably fitted into the guide hole.
6. The sealing assembly fixture according to claim 5, characterized in that, The stamping part (11) includes a stamping part (112) and a limiting part (113). The stamping part (112) is slidably connected to the guide hole. The limiting part (113) is disposed at the upper end of the stamping part (112). The sealing assembly tooling also includes a limiting part (3). The limiting part (3) is located between the guide seat (2) and the limiting part (113). When the lower end of the stamping part (112) abuts against the pressing shoulder (230), there is a gap b between the limiting part (113) and the limiting part (3).
7. The sealing assembly fixture according to claim 6, characterized in that, The height difference between the pressed shoulder (230) and the pressed shoulder (120) is n.
8. The sealing assembly fixture according to claim 5, characterized in that, The sealing assembly fixture also includes a base (4), which is located below the guide hole and is used to support the valve block (200).
9. The sealing assembly fixture according to claim 8, characterized in that, The base (4) has a clearance hole (41) and the bottom of the valve block (200) can be inserted into the clearance hole (41).
10. A sealing assembly mechanism, characterized in that, Includes a press and a sealing assembly fixture as described in any one of claims 1 to 9, wherein the press is used to drive the stamping part (11) to stamp the press-in shoulder (230) to deform the press-in shoulder (230) so as to seal it with the press-on shoulder (120).