Self-locking type anti-loosening clamping ring

Abstract

The utility model relates to the technical field of snap rings, in particular to a self-locking type anti-loosening snap ring, which is characterized in that a first push block is arranged at the rear end of a first insertion rod, a second hollow groove is formed in a second shifting block, a second insertion rod is arranged in the second hollow groove in a telescopic manner, a second push block is arranged at the rear end of the second insertion rod, a positioning groove is formed in the second insertion rod, and the first push block is arranged in the positioning groove. According to the self-locking type anti-loosening clamping ring, through the unique self-locking design that the clamping blocks are matched with the clamping grooves, the clamping ring can be effectively prevented from loosening in the working process, the stability of connection between the clamping ring and the shaft groove is greatly improved, normal operation of parts is guaranteed, the service life of the parts is prolonged, and the service life of the parts is prolonged. And the risk of faults caused by looseness of the clamping ring is reduced.

Description

Technical Field

[0001] This utility model relates to the field of retaining ring technology, specifically a self-locking anti-loosening retaining ring. Background Technology

[0002] The main body of a retaining ring is generally a ring structure with a certain degree of elasticity and toughness. It can be installed on a grooved shaft to fix the hole-direction movement of parts. The inner diameter of this type of retaining ring is slightly smaller than the assembly shaft diameter. When installing, retaining ring pliers are required. The pliers are inserted into the pliers hole of the retaining ring to expand the retaining ring before it can be placed into the pre-machined shaft groove.

[0003] Currently, clasps have a simple structure and lack a self-locking mechanism, resulting in insufficient fixation and a risk of loosening during operation, leading to low stability. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a self-locking anti-loosening clasp.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a self-locking anti-loosening retaining ring, comprising a retaining ring body, with a first actuating block and a second actuating block at both ends of the retaining ring body. The first actuating block has a second slot, and a first insert rod is telescopically arranged in the second slot. A first pushing block is provided at the rear end of the first insert rod. The second actuating block has a second slot, and a second insert rod is telescopically arranged in the second slot. A second pushing block is provided at the rear end of the second insert rod. A positioning groove is provided inside the second insert rod, and a slot is provided on the inner wall of the positioning groove. The first insert rod is inserted into the interior of the positioning groove. A cavity is provided at one end of the first insert rod, and a spring is provided inside the cavity. A locking block that cooperates with the slot is provided at one end of the spring. Both the first pushing block and the second pushing block have actuating grooves.

[0008] To facilitate the assembly of the card block and the card slot, the present invention is improved by having the card block as a trapezoidal structure, with a first inclined surface on one side and a second inclined surface on the other side.

[0009] To facilitate the release of the card block from the slot, the present invention includes an improvement in that a through hole communicating with the slot is provided on one side of the second insert rod.

[0010] To facilitate the installation of the first and second push blocks, the present invention includes the following improvements: the inner ends of the first and second inserts are provided with grooves, and the lower ends of the first and second push blocks are provided with protrusions that insert into the grooves. The first and second push blocks are fixed to the outer ends of the first and second inserts respectively by screws, with the top of the screws located inside the actuating groove.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, this utility model provides a self-locking anti-loosening clasp, which has the following beneficial effects:

[0013] Improve connection stability:

[0014] This self-locking anti-loosening circlip, through its unique self-locking design of the circlip block and groove, effectively prevents the circlip from loosening during operation, greatly improving the stability of the connection between the circlip and the shaft groove, ensuring the normal operation of components, and reducing the risk of failure caused by circlip loosening.

[0015] Easy to install and remove:

[0016] During installation, only circlip pliers and simple specified tools (such as a metal rod) are needed. By following certain steps, the circlip can be installed and locked. During disassembly, the circlip can be easily pushed out of the slot through the through hole, enabling quick disassembly. Attached Figure Description

[0017] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the mating structure of the protrusion and groove in this utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the card block in this utility model;

[0021] Figure 5 This utility model Figure 1 A magnified schematic diagram of the local structure at point A;

[0022] In the diagram: 1. Ring body; 2. First actuating block; 3. Second actuating block; 4. Second slot; 5. Second insert rod; 6. Second push block; 7. Positioning slot; 8. First slot; 9. First insert rod; 10. First push block; 11. Cavity; 12. Locking block; 13. Locking groove; 14. Through hole; 15. Groove; 16. Protrusion. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 This utility model discloses a self-locking anti-loosening retaining ring, comprising a retaining ring body 1. The retaining ring body 1 has a first actuating block 2 and a second actuating block 3 at both ends. The first actuating block 2 has a second slot 4, and a first insert rod 9 is telescopically disposed within the second slot 4. A first pushing block 10 is provided at the rear end of the first insert rod 9. The second actuating block 3 has a second slot 4, and a second insert rod 5 is telescopically disposed within the second slot 4. A second pushing block 6 is provided at the rear end of the second insert rod 5. A positioning groove 7 is provided within the second insert rod 5, and a locking groove 13 is provided on the inner wall of the positioning groove 7. The first insert rod 9 is inserted into the positioning groove 7. A cavity 11 is provided at one end of the first insert rod 9, and a spring is provided within the cavity 11. A locking block 12 that cooperates with the locking groove 13 is provided at one end of the spring. Both the first pushing block 10 and the second pushing block 6 have actuating grooves.

[0025] Installation phase:

[0026] When it is necessary to install a retaining circlip, use retaining circlip pliers to insert the pliers into the pliers holes of the first actuating block 22 and the second actuating block 3 to expand the retaining circlip body 1. This is because the retaining circlip body 1 has a certain degree of elasticity; after expansion, its inner diameter increases, allowing it to be smoothly placed into the pre-machined shaft groove. Afterward, the retaining circlip body 1 will return to its original shape due to its own elasticity, thus initially completing the installation on the shaft groove.

[0027] Self-locking phase:

[0028] After the retaining ring body 1 is installed in place, a designated tool (such as a metal rod) is used to move the first pushing block 10 and the second pushing block 6 through the actuating groove. The first pushing block 10 drives the first insert rod 9 to extend and retract within the second slot 4 of the first actuating block 22, and the second pushing block 6 drives the second insert rod 5 to extend and retract within the second slot 4 of the second actuating block 3. As the operation proceeds, the first insert rod 9 gradually inserts into the positioning groove 7 of the second insert rod 5.

[0029] In this embodiment, the card block 12 has a trapezoidal structure, and one side of the card block 12 is provided with a first inclined surface, and the other side of the card block 12 is provided with a second inclined surface.

[0030] Because the locking block 12 has a trapezoidal structure and a first inclined surface and a second inclined surface on each side, this design causes the first inclined surface to be squeezed when the locking block 12 encounters the inner wall of the positioning groove 7 during insertion. The locking block 12 will retract into the cavity 11 of the first insert rod 9, compressing the spring. When the first insert rod 9 is inserted into the appropriate position and the locking block 12 is just aligned with the locking groove 13, the elastic force of the spring will push the locking block 12 to pop out and lock into the locking groove 13. At this time, the first insert rod 9 and the second insert rod 5 are locked, thus realizing the self-locking of the locking ring body 1. At the same time, the first pushing block 10 and the second pushing block 6 respectively contact one end of the second empty groove 4.

[0031] In this embodiment, one side of the second insertion rod 5 is provided with a through hole 14 communicating with the slot 13. The inner ends of the first insertion rod 9 and the second insertion rod 5 are both provided with grooves 15. The lower ends of the first pushing block 10 and the second pushing block 6 are both provided with protrusions 16 that are inserted into the grooves 15. The first pushing block 10 and the second pushing block 6 are fixed to the outer ends of the first insertion rod 9 and the second insertion rod 5 respectively by screws. The top of the screw is located inside the actuating groove.

[0032] If the retaining ring needs to be disassembled later, the retaining block 12 can be pushed out of the retaining groove 13 through the through hole 14 on one side of the second insert rod 5, which is connected to the retaining groove 13, so that it is freed from the restriction of the retaining groove 13. Then, the first push block 10 and the second push block 6 are pushed in the opposite direction to pull the first insert rod 9 out of the positioning groove 7. Finally, the retaining ring body 1 can be expanded with retaining ring pliers to remove it from the shaft groove.

[0033] Traditional retaining rings, due to their simple structure and lack of effective self-locking mechanisms, are prone to loosening during operation and have poor stability. This self-locking anti-loosening retaining ring, however, utilizes a unique self-locking design where the retaining block 12 and the retaining groove 13 work together to effectively prevent loosening during operation. This significantly improves the stability of the connection between the retaining ring and the shaft groove, ensuring the normal operation of components and reducing the risk of malfunctions caused by retaining ring loosening.

[0034] During installation, only circlip pliers and simple specified tools (such as a metal rod) are needed to complete the installation and self-locking of the circlip by following specific steps. The trapezoidal structure and beveled design of the locking block 12 make it easier to insert into the slot 13, facilitating assembly. For disassembly, the locking block 12 can be easily pushed out of the slot 13 through the through hole 14, enabling quick removal. This convenient installation and disassembly method not only saves installation and maintenance time but also reduces labor intensity.

[0035] The inner ends of the first insert rod 9 and the second insert rod 5 are provided with grooves 15, and the lower ends of the first push block 10 and the second push block 6 are provided with protrusions 16, which are fixed by screws. This design makes the installation of the first push block 10 and the second push block 6 more stable, while also facilitating disassembly and maintenance. The bottom of the screw top is located inside the actuating groove, which ensures the compactness of the structure and does not hinder operation through the actuating groove. The overall structural design is scientific and reasonable.

[0036] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A self-locking anti-loosening snap ring comprising a snap ring body (1), characterized in that: The retaining ring body (1) has a first actuating block (2) and a second actuating block (3) at both ends. The first actuating block (2) has a second slot (4). A first insert rod (9) is telescopically arranged in the second slot (4). A first push block (10) is provided at the rear end of the first insert rod (9). The second actuating block (3) has a second slot (4). A second insert rod (5) is telescopically arranged in the second slot (4). A second push block (6) is provided at the rear end of the second insert rod (5). A positioning groove (7) is provided in the second insert rod (5). A slot (13) is provided on the inner wall of the positioning groove (7). The first insert rod (9) is inserted into the positioning groove (7). A cavity (11) is provided at one end of the first insert rod (9). A spring is provided in the cavity (11). A locking block (12) that cooperates with the slot (13) is provided at one end of the spring. Actuating grooves are provided on both the first push block (10) and the second push block (6).

2. A self-locking anti-loosening snap ring according to claim 1, characterized in that: The card block (12) has a trapezoidal structure, and a first inclined surface is provided on one side of the card block (12), and a second inclined surface is provided on the other side of the card block (12).

3. A self-locking anti-loosening snap ring according to claim 2, characterized in that: The second insert (5) has a through hole (14) on one side that communicates with the slot (13).

4. A self-locking anti-loosening snap ring according to claim 3, characterized in that: The inner ends of the first insert (9) and the second insert (5) are provided with grooves (15), and the lower ends of the first push block (10) and the second push block (6) are provided with protrusions (16) that are inserted into the grooves (15).

5. A self-locking anti-loosening snap ring according to claim 4, characterized in that: The first push block (10) and the second push block (6) are fixed to the outer ends of the first insert (9) and the second insert (5) respectively by screws.

6. A self-locking anti-loosening snap ring according to claim 5, characterized in that: The top of the screw is located inside the actuation slot.

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