Installation tool for non-standard clamp spring
By designing a non-standard snap ring installation tool consisting of bolts, a horn cover, and a splitter, the problems of time-consuming, labor-intensive, and easily damaged non-standard snap ring installation were solved, achieving a fast and labor-saving installation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 秦洪波
- Filing Date
- 2025-04-09
- Publication Date
- 2026-04-21
AI Technical Summary
In the existing technology, the installation of non-standard snap rings is time-consuming and laborious, and it is easy to damage the parts. The lack of special tools leads to low installation efficiency.
An installation tool comprising bolts, a horn cover, a splitter, and nuts was designed. By using the bolts and the horn cover in combination, and utilizing the horn-shaped structure of the horn cover and the claws of the splitter, non-standard snap rings can be easily opened and installed.
It enables quick and effortless installation of non-standard snap rings, avoids damage to parts, and improves installation efficiency and safety.
Smart Images

Figure CN224144577U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of snap ring installation tools, and in particular to an installation tool for non-standard snap rings. Background Technology
[0002] A snap ring, also called a retaining ring or retaining ring, is a type of fastener used to install in the grooves or holes of shafts or holes in machines and equipment, serving to prevent axial movement of parts on the shaft or in the hole. Snap rings come in standard and non-standard versions. Standard snap rings can be installed using snap ring pliers to open them up.
[0003] When non-standard retaining rings need to be installed into the groove, since there are no special tools, the only way to install them is to pry them with a flathead screwdriver and tap them with a hammer. This is time-consuming, laborious, inefficient, and can easily damage the parts, causing secondary damage.
[0004] To address the aforementioned issues, this application proposes an installation tool for non-standard snap rings. Utility Model Content
[0005] This utility model provides an installation tool for non-standard snap rings to solve the above-mentioned technical problems.
[0006] To solve the above-mentioned technical problems, this utility model provides an installation tool for a non-standard snap ring, including a bolt. The outer end of the bolt is fitted with a horn cover, a splitter, and a second nut. The second nut is located above the splitter, and the horn cover is located below the splitter. A first nut is welded and fixed inside the horn cover. The first nut is fitted onto the outer end of the bolt. The horn cover is threaded onto the bolt through the first nut. The bolt and the second nut are threaded together.
[0007] Preferably, the horn cover is narrow at the top and wide at the bottom, forming a horn shape, and the nut is welded to the inside of the narrow opening of the horn cover.
[0008] Preferably, the splitter consists of an iron pipe and three claws, the three claws being integrally formed in a ring array at the bottom of the iron pipe, and a retaining ring being welded and fixed to the bottom of the outer surface of the claws.
[0009] Preferably, the iron pipe has a through hole at the top, and the bolt passes through the through hole.
[0010] Preferably, a washer is fitted onto the bolt, and the washer is located below the horn cover.
[0011] Compared with related technologies, the non-standard snap ring installation tool provided by this utility model has the following advantages:
[0012] After the bolt passes through the plunger, the horn cover and splitter are then fitted on. As the splitter moves down along the bolt, its multiple claws at the bottom are gradually pushed apart by the horn cover. During this process, the non-standard retaining rings on the multiple claws are stretched open until the bottom of the splitter is stretched to the same size as or even larger than the wide opening of the horn cover. At this point, the non-standard retaining rings on the splitter can move down over the horn cover and fit into the groove on the plunger for installation. The entire operation is simple, requiring no prying or hammering of the retaining rings, saving time and effort, and is less likely to damage parts. It is very convenient to use. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of an installation tool for a non-standard snap ring proposed in this utility model;
[0014] Figure 2 This is a schematic diagram of the splitter structure of a non-standard snap ring installation tool proposed in this utility model;
[0015] Figure 3 This is a schematic diagram of the horn cover structure of an installation tool for a non-standard snap ring proposed in this utility model;
[0016] Figure 4 This is a schematic diagram illustrating the usage effect of an installation tool for a non-standard snap ring proposed in this utility model.
[0017] The following are the labels in the diagram: 1. Bolt, 2. Washer, 3. Horn cover, 4. Nut 1, 5. Splitter, 51. Iron pipe, 511. Through hole, 52. Sleeve claw, 53. Retaining ring, 6. Nut 2. Detailed Implementation
[0018] Implementation examples, by Figure 1-4 The present invention includes a bolt 1, with a horn cover 3, a splitter 5, and a second nut 6 fitted on the outer end of the bolt 1. The second nut 6 is located above the splitter 5, and the horn cover 3 is located below the splitter 5. A first nut 4 is welded and fixed inside the horn cover 3. The first nut 4 is fitted on the outer end of the bolt 1, and the horn cover 3 is threadedly connected to the bolt 1 through the first nut 4. The bolt 1 and the second nut 6 are threadedly connected.
[0019] The horn cover 3 is narrow at the top and wide at the bottom, forming a horn shape. The nut 4 is welded to the inside of the narrow opening of the horn cover 3. The horn cover 3 is connected to the bolt 1 by the nut 4 and can be rotated to adjust its vertical displacement.
[0020] The splitter 5 consists of an iron pipe 51 and three sleeves 52. The three sleeves 52 are integrally formed in a ring array and connected to the bottom of the iron pipe 51. A retaining ring 53 is welded and fixed to the bottom of the outer surface of the sleeves 52. A through hole 511 is opened at the top of the iron pipe 51. The bolt 1 passes through the through hole 511. The three sleeves 52 of the splitter 5 can open the non-standard retaining ring and prevent the non-standard retaining ring from moving upward when the sleeves 52 are separated by the retaining ring 53. Thus, it can be opened along with the opening of the three sleeves 52. The splitter 5 is fitted on the bolt 1. The splitter 5 is pushed down by the bolt 2 6 being screwed down on the bolt 1.
[0021] A washer 2 is fitted on the bolt 1. The washer 2 is located below the horn cover 3. After the bolt 1 passes through the plunger, the washer 2 can prevent the bolt 1 from passing through the center of the plunger.
[0022] Working principle:
[0023] Pass bolt 1 through the bottom of the plunger, with washer 2 positioned below the plunger. Then, thread nut 4 onto bolt 1, with nut 3 positioned above the plunger. Tighten nut 4 on nut 3 while keeping bolt 1 stationary, or tighten bolt 1 while keeping nut 3 stationary, ensuring nut 3 is tightly fitted above the plunger. Next, place splitter 5 onto bolt 1, followed by nut 6 on bolt 1 and rotate it. At this point, the retaining ring is positioned outside the three claws 52 in splitter 5, below retaining ring 53. Finally, tighten the screw. Nut 6 moves down along bolt 1 and gradually pushes splitter 5 down. When the three claws 52 at the bottom of splitter 5 press against the horn cover 3, they will be interfered with by the shape of the horn cover 3, causing the three claws 52 to move away from each other. During this time, the retaining spring is pushed open by the three claws 52 until the bottom of splitter 5 is expanded to be the same size as the wide opening of horn cover 3. At this time, the retaining spring falls down from splitter 5 and falls into the groove above the plunger. If the retaining spring cannot fall off automatically, a screwdriver or other tool can be used to push the retaining spring down so that it falls off splitter 5.
Claims
1. A non-spring clip mounting tool comprising a bolt (1), characterized in that: The outer end of the bolt (1) is fitted with a horn cover (3), a splitter (5) and a second nut (6). The second nut (6) is located above the splitter (5), and the horn cover (3) is located below the splitter (5). A first nut (4) is welded and fixed inside the horn cover (3). The first nut (4) is fitted on the outer end of the bolt (1). The horn cover (3) is threadedly connected to the bolt (1) through the first nut (4). The bolt (1) and the second nut (6) are threadedly connected.
2. The non-spring clip installation tool of claim 1, wherein The horn cover (3) is narrow at the top and wide at the bottom, forming a horn shape. The nut (4) is welded to the inside of the narrow opening of the horn cover (3).
3. The non-spring clip installation tool of claim 1, wherein, The splitter (5) consists of an iron pipe (51) and three claws (52). The three claws (52) are integrally formed in a ring array and connected to the bottom of the iron pipe (51). A retaining ring (53) is welded and fixed to the bottom of the outer surface of the claws (52).
4. The non-spring clip installation tool of claim 3, wherein, The iron pipe (51) has a through hole (511) at the top, and the bolt (1) passes through the through hole (511).
5. The non-spring clip installation tool of claim 1, wherein, A washer (2) is fitted on the bolt (1), and the washer (2) is located below the horn cover (3).