A stellite installation tool
By using the push rod and support linkage system of the Step seal installation fixture, the problem of damage to PTFE slip rings during installation was solved, enabling damage-free and mass-producible slip ring assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG RUNFUXIANG SEALING TECH CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-05
AI Technical Summary
In the current installation process of step seals, PTFE slip rings are easily damaged and cannot be mass-produced.
The step seal installation fixture, including a push rod, a guide seat, and a support link, is used. The push rod and the support link, which are set coaxially, work together to install the slip ring into the closed groove of the guide, thus avoiding heat damage.
It enables slip rings to be installed into closed grooves without damage, ensuring no damage after assembly and supporting mass production assembly.
Smart Images

Figure CN224323046U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of step seal installation technology, specifically to a step seal installation tooling. Background Technology
[0002] The seal consists of an O-ring and a PTFE slip ring, and is installed in the closed groove of the shock absorber guide to provide a sealing function.
[0003] The existing assembly method involves twisting the PTFE slip ring from the Stephans into the closed groove in a figure-eight shape. However, the shock absorber rod diameter is small, and after installation, there will be creases and damage on the slip ring lip.
[0004] Furthermore, existing technologies rely entirely on manual labor, and the slip rings may be damaged after assembly, making mass production assembly impossible.
[0005] Application content
[0006] Technical problems to be solved
[0007] In view of the above-mentioned shortcomings of the prior art, this application provides a foldable bicycle frame, which can effectively solve the problems in the prior art.
[0008] Technical solution
[0009] To achieve the above objectives, this application provides the following technical solution:
[0010] A step seal installation fixture, comprising:
[0011] Putter;
[0012] A guide seat is connected to one end of the push rod, and the guide seat is provided with a cavity for the push rod to pass through;
[0013] A support link is located at the other end of the guide seat away from the push rod; one end of the support link is correspondingly positioned to the push rod that passes through the cavity.
[0014] The push rod, cavity, and support rod are coaxially arranged.
[0015] The push rod and the support connecting rod work together to install the slip ring into the closed groove of the guide.
[0016] Preferably, the push rod includes:
[0017] The push rod body;
[0018] An elastic chuck is located at the end of the push rod body facing the guide seat, and the inner diameter of the elastic chuck gradually increases at the end away from the push rod body.
[0019] Preferably, the elastic chuck includes a ring-shaped chuck body, with adjustment grooves formed between the chuck bodies, and multiple chuck bodies are sequentially arranged to form a conical elastic chuck.
[0020] Preferably, the push rod further includes:
[0021] An elastic clamp connecting cylinder, wherein the outer diameter of the elastic clamp connecting cylinder is smaller than the maximum outer diameter of the push rod body;
[0022] The elastic clamp has one end inserted into the elastic clamp connecting cylinder and fixed to the inner wall of the elastic clamp connecting cylinder, and the other end extends out of the elastic clamp connecting cylinder for the installation of the slip ring.
[0023] Preferably, the width of the adjustment groove gradually increases in the direction away from the push rod body.
[0024] Preferably, the guide seat includes:
[0025] The guide section is located at the end facing the push rod;
[0026] A limiting part is located at the end of the guide part facing the support link;
[0027] The guide portion and the limiting portion are coaxially arranged, and the interiors of the guide portion and the limiting portion form a connected cavity structure.
[0028] Preferably, the cavity includes:
[0029] A guide cavity is provided throughout the guide section;
[0030] A limiting cavity is disposed through the limiting part, and the guide cavity is connected to the limiting cavity; the limiting cavity is cylindrical in shape.
[0031] The inner diameter of the guide cavity gradually decreases towards the limiting cavity;
[0032] The minimum inner diameter of the guide cavity is the same as the inner diameter of the limiting cavity.
[0033] Preferably, the supporting link includes a link seat and a link body. One end of the link body is correspondingly disposed with the guide seat, and the other end is connected to the link seat. The diameter of the link body is smaller than the diameter of the link seat.
[0034] Preferably, the support link further includes a link head disposed at one end of the link body facing the guide seat, and the outer diameter of the link head gradually decreases from the link body towards the guide seat.
[0035] Preferably, the push rod, guide seat, and connecting rod seat are all made of nylon.
[0036] Beneficial effects
[0037] The technical solution provided in this application has the following advantages compared with the prior art:
[0038] The step seal installation fixture of this application includes a push rod, a guide seat, and a support rod. The guide seat is connected to one end of the push rod and has a cavity for the push rod to pass through. The support rod is located at the other end of the guide seat away from the push rod. One end of the support rod corresponds to the push rod passing through the cavity. The push rod, cavity, and support rod are coaxially arranged. The push rod and support rod work together to install the slip ring into the closed groove of the guide. The systematic cooperation of the push rod, guide seat, and support rod facilitates the downward positioning of the slip ring. The support rod of this patent can assist the slip ring to smoothly enter the closed groove, prevent it from coming out, and allow for damage-free installation into the closed groove without heating. This application allows for the tooling to install the PTFE slip ring in the step seal into the closed groove of the shock absorber guide without damage, and the assembly is completed without damage. Attached Figure Description
[0039] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0040] Figure 1 This is a schematic diagram of the structure of the step seal installation fixture of this application;
[0041] Figure 2 For this application Figure 1 A schematic diagram of the AA-direction cross-sectional structure;
[0042] Figure 3 For this application Figure 2 Enlarged structural diagram of section B in the middle;
[0043] Figure 4 This is an exploded structural diagram of the step seal installation fixture of this application;
[0044] Figure 5 This is a schematic diagram of the push rod structure in the step seal installation tooling of this application;
[0045] Figure 6 This is a partial schematic diagram of the use of the step seal installation tooling in this application.
[0046] The labels in the diagram represent:
[0047] 100, slip ring; 200, guide; 300, closed groove;
[0048] 1. Push rod; 101. Push rod body; 102. Elastic chuck; 103. Adjustment groove; 104. Elastic chuck connecting sleeve;
[0049] 2. Guide seat; 201. Cavity; 211. Guide cavity; 212. Limiting cavity; 202. Guide part; 203. Limiting part;
[0050] 3. Supporting link; 301. Linkage seat; 302. Linkage body; 303. Linkage head. Detailed Implementation
[0051] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0052] Figure 1 This is a schematic diagram of the structure of the step seal installation fixture of this application; Figure 2 For this application Figure 1 A schematic diagram of the AA-direction cross-sectional structure; Figure 3 For this application Figure 2 Enlarged structural diagram of section B in the middle; Figure 4 This is an exploded structural diagram of the step seal installation fixture of this application; Figure 5 This is a schematic diagram of the push rod structure in the step seal installation tooling of this application; Figure 6 This is a partial schematic diagram of the use of the step seal installation tooling in this application.
[0053] like Figures 1-6 As shown in the figure, this application provides a step seal installation fixture, including a push rod 1, a guide seat 2, and a support link 3.
[0054] In a specific implementation, the guide seat 2 is connected to one end of the push rod 1, and the guide seat 2 is provided with a cavity 201 for the push rod 1 to pass through;
[0055] The support rod 3 is located at the other end of the guide seat 2 away from the push rod 1; one end of the support rod 3 is correspondingly arranged to the push rod 1 that passes through the cavity 201; the push rod 1, the cavity 201 and the support rod 3 are coaxially arranged.
[0056] The push rod 1 and the support connecting rod 3 work together to install the slip ring 100 into the closed groove 300 of the guide 200.
[0057] During implementation, the step seal is installed from the side opposite to where the oil seal is installed. First, the O-ring from the step seal is manually inserted into the sealing groove 300 inside the guide. The guide 200 with the O-ring is then fixed in a vise, and the guide seat 2 is placed on the guide 200. Next, the slip ring 100 is placed inside the guide seat 2, and then the push rod 1 is prepared to press down on the slip ring 100. While pressing down on the slip ring 100, the support rod 3 is manually pushed into the guide 200, and simultaneously moves downwards. After the slip ring 100 is pressed in, the push rod 1 is removed, and the support rod 3 is used to position the slip ring 100.
[0058] This application enables the slip ring 100 to be installed into the closed groove 300 without damage, and the assembly is completed without any damage.
[0059] Based on the above solution, this application provides a specific implementation of the push rod 1, wherein the push rod 1 includes a push rod body 101 and an elastic clamp 102.
[0060] The elastic chuck 102 is disposed at one end of the push rod body 101 facing the guide seat 2, and the inner diameter of the elastic chuck 102 gradually increases at the end away from the push rod body 101.
[0061] Based on the above solution, the elastic chuck 102 provided in this application embodiment includes a ring-shaped chuck body, with an adjustment groove 103 formed between the chuck bodies. Multiple chuck bodies are sequentially arranged to form a conical elastic chuck 102. The conical elastic chuck 102 facilitates installation and also serves as a guide, reducing damage to the slip ring during installation.
[0062] Based on the above solution, the push rod 1 provided in this application embodiment also includes an elastic clamp connecting cylinder 104.
[0063] The outer diameter of the elastic clamp connecting cylinder 104 is smaller than the maximum outer diameter of the push rod body 101; one end of the elastic clamp 102 extends into the elastic clamp connecting cylinder 104 and is fixedly disposed on the inner wall of the elastic clamp connecting cylinder 104, and the other end extends out of the elastic clamp connecting cylinder 104 for the installation of the slip ring 100.
[0064] Specifically, this configuration facilitates the guidance and installation of the slip ring 100, preventing damage to the slip ring 100.
[0065] Based on the above solution, the width of the adjustment groove 103 provided in this application embodiment gradually increases in the direction away from the push rod body 1.
[0066] During installation, the slip ring 100 is inserted into the sealing groove 300 through the end of the elastic clamp 102. The elastic clamp connecting sleeve 104 prevents further damage to the slip ring 100 once it is in place.
[0067] Based on the above solution, the present application provides a specific embodiment of the guide seat 2, which includes a guide part 202 and a limiting part 203.
[0068] The guide portion 202 is disposed at one end facing the push rod 1; the limiting portion 203 is disposed at one end of the guide portion 202 facing the support connecting rod 3; the guide portion 202 and the limiting portion 203 are coaxially disposed, and the interiors of the guide portion 202 and the limiting portion 203 form a connected cavity structure.
[0069] Based on the above scheme, the cavity 201 in this application embodiment includes a guide cavity 211 and a limiting cavity 212.
[0070] A guide cavity 211 is disposed through the guide portion 202; a limiting cavity 212 is disposed through the limiting portion 203, and the guide cavity 211 is connected to the limiting cavity; the limiting cavity 212 is cylindrical; the inner diameter of the guide cavity 211 gradually decreases in the direction towards the limiting cavity 212; the minimum inner diameter of the guide cavity 211 is the same as the inner diameter of the limiting cavity 212.
[0071] Based on the above solution, the support link 3 provided in this application embodiment includes a link seat 301 and a link body 302. One end of the link body 302 is correspondingly disposed with the guide seat 2, and the other end is connected to the link seat 301. The diameter of the link body 302 is smaller than the diameter of the link seat 301.
[0072] Based on the above solution, the support link 3 provided in this application embodiment also includes a link head 303, which is disposed at one end of the link body 302 facing the guide seat 2, and the outer diameter of the link head 303 gradually decreases from the link body 302 toward the guide seat 2.
[0073] Specifically, during installation, the support rod 3 uses a pair of elastic clamps for support. This facilitates the installation of the slip ring 100 while further preventing damage to the slip ring.
[0074] In one specific implementation, the push rod, guide seat, and connecting rod seat are all made of nylon.
[0075] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this application.
Claims
1. A step seal installation fixture, characterized in that, include: Push rod (1); A guide seat (2) is connected to one end of the push rod (1), and the guide seat (2) is provided with a cavity (201) through which the push rod (1) passes; A support link (3) is provided at the other end of the guide seat (2) away from the push rod (1); one end of the support link (3) is provided corresponding to the push rod (1) that passes through the cavity (201); The push rod (1), cavity (201) and support rod (3) are coaxially arranged; The push rod (1) and the support link (3) work together to install the slip ring (100) into the closed groove (300) of the guide (200).
2. The step seal installation fixture as described in claim 1, characterized in that, The push rod (1) includes: Push rod body (101); An elastic chuck (102) is disposed at one end of the push rod body (101) facing the guide seat (2), and the inner diameter of the elastic chuck (102) gradually increases at the end away from the push rod body (101).
3. The step seal installation fixture as described in claim 2, characterized in that, The elastic chuck (102) includes a chuck body arranged in a ring, and an adjustment groove (103) is formed between the chuck bodies. A plurality of chuck bodies are arranged in sequence to form a conical elastic chuck (102).
4. The step seal installation fixture as described in claim 3, characterized in that, The push rod (1) also includes: The elastic clamp connecting cylinder (104) has an outer diameter smaller than the maximum outer diameter of the push rod body (101); The elastic clamp (102) has one end inserted into the elastic clamp connecting cylinder (104) and fixedly mounted on the inner wall of the elastic clamp connecting cylinder (104), and the other end extends out of the elastic clamp connecting cylinder (104) for the installation of the slip ring (100).
5. The step seal installation fixture as described in claim 3, characterized in that, The width of the adjustment groove (103) gradually increases in the direction away from the push rod body.
6. The step seal installation fixture as described in claim 1, characterized in that, The guide seat (2) includes: A guide section (202) is provided at one end facing the push rod (1); A limiting part (203) is provided at one end of the guide part (202) facing the support link (3); The guide part (202) and the limiting part (203) are coaxially arranged, and the interiors of the guide part (202) and the limiting part (203) form a connected cavity structure.
7. The step seal installation fixture as described in claim 6, characterized in that, The cavity (201) includes: A guide cavity (211) is disposed through the guide section (202); A limiting cavity (212) is disposed through the limiting part (203), and the guide cavity (211) is connected to the limiting cavity; the limiting cavity (212) is cylindrical; The inner diameter of the guide cavity (211) gradually decreases in the direction toward the limiting cavity (212); The minimum inner diameter of the guide cavity (211) is the same as the inner diameter of the limiting cavity (212).
8. The step seal installation fixture as described in claim 1, characterized in that, The supporting link (3) includes a link seat (301) and a link body (302). One end of the link body (302) is correspondingly disposed with the guide seat (2), and the other end is connected to the link seat (301). The diameter of the link body (302) is smaller than the diameter of the link seat (301).
9. The step seal installation fixture as described in claim 8, characterized in that, The supporting link (3) also includes a link head (303), which is located at one end of the link body (302) facing the guide seat (2). The outer diameter of the link head (303) gradually decreases from the link body (302) towards the guide seat (2).
10. The step seal installation fixture as described in claim 1, characterized in that, The push rod, guide seat, and connecting rod seat are all made of nylon.