Assembling tool for lip-shaped ring of valve seat
By designing the valve seat lip ring assembly tool, the complete sealing cooperation between the lip ring and the valve seat is achieved by using the ring groove and the spring plunger structure, the problem of twisting and deformation of the lip ring in traditional assembly methods is solved, ensuring that during the assembly process Low resistance and efficient sealing effect.
Patent Information
- Application Number
- CN202420966315.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The traditional valve seat lip ring assembly method can easily cause lip ring to twist and deform and damage through compression of the pressing block, and cannot achieve sealing fit.
Design a valve seat lip ring assembly tool, including the bottom ring, inner ring cylinder and outer ring cylinder, and a ring groove is formed between the inner ring cylinder and the outer ring cylinder, and the spring plunger structure and buffer block are used to ensure that the lip ring is assembled. No biasing and reducing friction during the process to achieve a complete sealing fit between the valve seat and the lip ring.
Through the design of the ring groove and spring plunger structure, the lip ring is not biased when pressed into the valve seat, the sealing fit is completed, and the wear of the press on the bottom ring is reduced through the buffer block, achieving low resistance during assembly and efficient sealing.
Smart Images
Figure CN222200351U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of valve assembly equipment, in particular to a valve seat lip ring assembly tool. Background Art
[0002] The valve seat (cylindrical) is an important part of ultra-low temperature (temperature below minus 196 degrees Celsius) valves. Since the valve seat is sealed under low temperature conditions, the lip ring needs to be installed on the outer diameter of the valve seat ring, and the lip ring (with a built-in spring) and the valve seat are matched with an interference fit. The current traditional assembly method uses a machine (or manual method) to first put the lip ring on the mouth of the cylinder, and then use a pressing block to press the lip ring into the outer wall of the valve seat. This method of using a pressing block to squeeze can easily cause the lip ring to twist during the process of being inserted, and because the lip ring is easily damaged, it is easy to deform and damage during the process of being pressed in. Therefore, this method of using a pressing block to squeeze cannot make the lip ring and the valve seat seal together. Utility Model Content
[0003] In view of the above problems, the utility model provides a valve seat lip ring assembly tool.
[0004] The technical solution adopted by the utility model is as follows:
[0005] A valve seat lip ring assembly tool includes a bottom ring, an inner ring tube, and an outer ring tube. The outer ring tube and the inner ring tube are both arranged on the bottom ring. An annular groove is formed between the inner ring tube and the outer ring tube. The inner ring tube and the outer ring tube are both located on the same side of the bottom ring. The groove widths of the annular grooves are equal at all locations. The height of the inner ring tube is greater than that of the outer ring tube. A plurality of spring plunger structures are arranged on the outer ring tube, and the plug heads of the spring plunger structures are located on the outer tube wall of the inner ring tube, and all the spring plunger structures are located in the same plane; the moving direction of the plug heads of the spring plunger structures is perpendicular to the tube wall of the inner ring tube.
[0006] The method of using this assembly tool is as follows: first, the lip ring (in the shape of a circular ring) is clamped in the ring groove, and then the valve seat (in the shape of a cylinder) is placed on a plane, and the inner ring tube is aligned with the valve seat, the valve seat is located between the inner ring tube and the outer ring tube, and the entire bottom ring gradually moves toward the valve seat, and the valve seat is pressed between the lip ring and the inner ring tube, and finally the assembly of the valve seat and the lip ring is completed. In the above assembly process, since the lip ring is in the ring groove, the bottom of the ring groove (i.e., the bottom ring) and the groove wall (i.e., the inner cylinder wall of the outer ring tube) can limit the lip ring, and the lip ring will not be offset when pressed into the valve seat. After the assembly is completed, it can be ensured that the lip ring and the valve seat are completely sealed together.
[0007] In this assembly tool, the plug of the spring plunger structure contacts the inner wall of the valve seat. Since the plug can move relative to the wall of the inner ring tube (in fact, the plug is extended and retracted), it can ensure that the plug will not form a large friction force with the valve seat while being close to the inner wall of the valve seat, ensuring that the resistance when the valve seat and the lip ring are assembled is relatively small.
[0008] Optionally, the bottom ring is a circular bottom ring.
[0009] Optionally, the outer tube wall of the inner ring tube is in close contact with the inner ring wall of the bottom ring, and the inner tube wall of the outer ring tube is in close contact with the outer ring wall of the bottom ring.
[0010] Optionally, a buffer block is further included, wherein the buffer block is arranged on the bottom ring, and the buffer block and the inner ring tube are respectively located on both sides of the bottom ring.
[0011] The function of the buffer block is to buffer part of the pressure of the press on the bottom ring to avoid wear of the bottom ring caused by long-term downward pressure of the press.
[0012] Optionally, the buffer block is a buffer block made of polyurethane.
[0013] Optionally, there are multiple buffer blocks, and the distance between two adjacent buffer blocks on the bottom ring is equal.
[0014] The beneficial effect of the utility model is that the bottom and the groove wall of the annular groove can limit the lip ring, the lip ring will not be offset when pressed into the valve seat, and after assembly, it can be ensured that the lip ring and the valve seat are completely sealed and matched together. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the valve seat lip ring assembly tooling structure;
[0016] Figure 2 This is a schematic diagram showing the state of the valve seat lip ring assembly tool after assembly;
[0017] Figure 3 Schematic diagram of the state when the valve seat and lip ring are assembled together.
[0018] The reference numerals in the figure are: 1, inner ring cylinder; 2, outer ring cylinder; 3, bottom ring; 301, ring groove; 401, plug; 5, buffer block; 6, lip ring; 7, valve seat. DETAILED DESCRIPTION
[0019] The utility model is described in detail below in conjunction with the accompanying drawings.
[0020] As attached Figure 1 , Attachment Figure 2 And attached Figure 3As shown, a valve seat 7 lip ring 6 assembly tool includes a bottom ring 3, an inner ring tube 1, and an outer ring tube 2. The outer ring tube 2 and the inner ring tube 1 are both arranged on the bottom ring 3, and an annular groove 301 is formed between the inner ring tube 1 and the outer ring tube 2. The inner ring tube 1 and the outer ring tube 2 are both located on the same side of the bottom ring 3. The groove widths of the annular groove 301 are equal at all locations. The height of the inner ring tube 1 is greater than that of the outer ring tube 2. A plurality of spring plunger structures are arranged on the outer ring tube 2, and the plug heads 401 of the spring plunger structures are located on the outer tube wall of the inner ring tube 1, and all the spring plunger structures are located in the same plane; the moving direction of the plug heads 401 of the spring plunger structures is perpendicular to the tube wall of the inner ring tube 1.
[0021] The method of using this assembly tool is as follows: first, the lip ring 6 (in the shape of a circular ring) is clamped in the annular groove 301 (specifically, the lip ring 6 is clamped in the annular groove 301 by the protrusion on its own surface, and there is a certain gap between the lip ring 6 and the groove wall of the annular groove 301), and then the valve seat 7 (in the shape of a cylinder) is placed on a plane, and the inner ring tube 1 is aligned with the valve seat 7, the valve seat 7 is located between the inner ring tube 1 and the outer ring tube 2, and the entire bottom ring 3 gradually moves toward the valve seat 7, and the valve seat 7 is pressed between the lip ring 6 and the inner ring tube 1, and finally the assembly of the valve seat 7 and the lip ring 6 is completed. In the above assembly process, since the lip ring 6 is in the annular groove 301, the bottom of the annular groove 301 (i.e., the bottom ring 3) and the groove wall (i.e., the inner cylinder wall of the outer ring tube 2) can limit the lip ring, and the lip ring 6 will not be offset when pressed into the valve seat 7. After the assembly is completed, it can be ensured that the lip ring 6 and the valve seat 7 are completely sealed and matched together.
[0022] In the present assembly tool, the plug 401 of the spring plunger structure is in contact with the inner wall surface of the valve seat 7. Since the plug 401 can be moved relative to the wall of the inner ring tube 1 (in fact, the plug 401 is extended and retracted), it can be ensured that the plug 401 will not form a large friction force with the valve seat 7 while being in close contact with the inner wall of the valve seat 7, thereby ensuring that the resistance when the valve seat 7 and the lip ring 6 are assembled is relatively small.
[0023] As attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, the bottom ring 3 is a circular ring-shaped bottom ring 3.
[0024] As attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, the outer wall of the inner ring tube 1 is in close contact with the inner wall of the bottom ring 3 , and the inner wall of the outer ring tube 2 is in close contact with the outer wall of the bottom ring 3 .
[0025] As attached Figure 1 , Attachment Figure 2 And attached Figure 3As shown, it also includes a buffer block 5, which is arranged on the bottom ring 3, and the buffer block 5 and the inner ring tube 1 are respectively located on both sides of the bottom ring 3.
[0026] The function of the buffer block 5 is to buffer part of the pressure of the press on the bottom ring 3 to avoid the wear of the bottom ring 3 caused by the long-term downward pressure of the press.
[0027] As attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, the buffer block 5 is a buffer block 5 made of polyurethane.
[0028] As attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, there are multiple buffer blocks 5, and the distance between two adjacent buffer blocks 5 on the bottom ring 3 is equal.
[0029] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent transformations made using the contents of the present invention specification, directly or indirectly used in other related technical fields, are also included in the protection scope of the present invention.
Claims
1. A valve seat lip ring assembly tool, characterized in that: It includes a bottom ring, an inner ring tube and an outer ring tube, the outer ring tube and the inner ring tube are both arranged on the bottom ring, an annular groove is formed between the inner ring tube and the outer ring tube, the inner ring tube and the outer ring tube are both located on the same side of the bottom ring, the groove widths of each part of the annular groove are equal, the height of the inner ring tube is greater than the height of the outer ring tube, a plurality of spring plunger structures are arranged on the outer ring tube, the plug heads of the spring plunger structures are located on the outer tube wall of the inner ring tube, and all the spring plunger structures are located in the same plane; the moving direction of the plug heads of the spring plunger structures is perpendicular to the tube wall of the inner ring tube.
2. The valve seat lip ring assembly tool as claimed in claim 1, characterized in that: The bottom ring is a circular bottom ring.
3. The valve seat lip ring assembly tool as claimed in claim 1, characterized in that: The outer wall of the inner ring tube is in close contact with the inner wall of the bottom ring, and the inner wall of the outer ring tube is in close contact with the outer wall of the bottom ring.
4. The valve seat lip ring assembly tool as claimed in claim 1, characterized in that: It also includes a buffer block, which is arranged on the bottom ring, and the buffer block and the inner ring cylinder are respectively located on both sides of the bottom ring.
5. The valve seat lip ring assembly tool as claimed in claim 4, characterized in that: The buffer block is a buffer block made of polyurethane.
6. The valve seat lip ring assembly tool as claimed in claim 4, characterized in that: There are multiple buffer blocks, and the distance between two adjacent buffer blocks on the bottom ring is equal.