Multifunctional clamp spring pliers

Abstract

The utility model provides a multifunctional clamp spring plier which comprises a plier head, a plier body and an adjusting part, and the front end of the plier head is used for being inserted into an ear hole of a clamp spring. The two pincer bodies are symmetrically arranged, the middles of the two pincer bodies are rotationally connected, a sliding groove is formed in the front end of each pincer body, an adjusting screw rod is arranged at the rear end of each pincer body, and the rear end of each pincer head is used for being inserted into the corresponding sliding groove to be clamped; the adjusting part comprises a double-thread screw and two connecting rods, the two ends of the double-thread screw are threads with positive and negative threads, a universal ball head is embedded in one end of each connecting rod, an inner screw hole in threaded connection with the double-thread screw is formed in the other end of each connecting rod, and the center of each universal ball head is in threaded connection with the adjusting screw. Compared with the prior art, the clamp spring pliers have the advantages that the clamp spring does not need to be disassembled and assembled through gripping force of a human hand, the pliers body can be rotated through the threaded connection effect by rotating the double-thread screw, the clamp spring is disassembled and assembled, time and labor are saved when the clamp spring pliers are used, tedious operation is not needed, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware tools, in particular to a multifunctional circlip pliers. Background Art

[0002] A circlip pliers is a special tool used to install or disassemble internal circlips and external circlips. In terms of appearance, it belongs to the category of long-nose pliers. The pliers head can adopt structures such as inner straight, outer straight, inner bent, and outer bent, and is divided into two categories: external circlip pliers and internal circlip pliers. The external circlip pliers are used to disassemble and assemble external circlips on the shaft, and the internal circlip pliers are used to disassemble and assemble internal circlips.

[0003] In practical applications, when the thickness of an internal circlip or an external circlip reaches more than 1.2 mm, its diameter is relatively large at this time. Due to the increase in thickness, its elastic force is relatively large during disassembly and assembly, and it is relatively laborious to use the corresponding circlip pliers. When using a circlip pliers, we need to inwardly grip the handle of the circlip pliers with our hand to open or tighten the pliers head of the circlip pliers. When the circlip elastic force is large, a relatively large grip force is required, and the grip force also needs to be maintained for a certain period of time to remove the corresponding internal circlip or external circlip from the hole and the shaft; in this process, it often takes several attempts to successfully disassemble and assemble the internal circlip or external circlip, and it is very difficult for people with relatively small grip strength to complete the process of removing the circlip. Such a circlip pliers is laborious and time-consuming to use, affecting work efficiency, and there are certain defects in the actual use process. Summary of the Invention

[0004] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a multifunctional circlip pliers to solve the problems that the existing circlip pliers are laborious and time-consuming to use and affect work efficiency.

[0005] To achieve the above purpose and other related purposes, the present utility model provides a multifunctional circlip pliers including:

[0006] A pliers head, the front end of the pliers head is used to insert into the ear hole of the circlip;

[0007] Pliers bodies, there are two pliers bodies, the two pliers bodies are symmetrically arranged and rotatably connected in the middle. A chute is provided at the front end of the pliers body, and an adjusting screw is provided at the rear end of the pliers body. The rear end of the pliers head is used to insert into the chute for clamping connection;

[0008] An adjusting part, the adjusting part includes a double-headed screw and two connecting rods. The two ends of the double-headed screw are threads with positive and reverse threads. A universal ball head is embedded inside one end of the connecting rod, and an internal thread hole for threaded connection with the double-headed screw is provided at the other end of the connecting rod. The center of the universal ball head is in threaded connection with the adjusting screw.

[0009] Optionally, permanent magnets are provided in both the jaw head and the sliding groove, and the rear end of the jaw head can be magnetically adsorbed and fixed when inserted into the sliding groove.

[0010] Optionally, the rear end of the jaw head is a sliding pin, and the cross-sections of both the sliding pin and the sliding groove are regular polygons.

[0011] Optionally, the front end of the jaw head is a cylindrical structure, and the central axis of the cylindrical structure is parallel to but not aligned with the central axis of the jaw head.

[0012] Optionally, the cylindrical structure is straight or bent.

[0013] Optionally, the middle part of the double-headed screw is a nut structure with a hexagonal cross-section.

[0014] Optionally, hexagonal nuts are provided at both ends of the adjusting screw on which the universal ball head is located, and the hexagonal nuts are used to limit the position of the universal ball head on the adjusting screw.

[0015] In the solution implemented by the above-mentioned multifunctional circlip pliers, before using the multifunctional circlip pliers, first perform assembly. Specifically, insert the rear end of the jaw head into the sliding groove and clamp it tightly, then connect the universal ball head with the adjusting screw, and connect the internal thread hole with one end of the double-headed screw. When using the multifunctional circlip pliers, insert the front end of the jaw head into the ear hole of the circlip, and rotate the double-headed screw. Since both ends of the double-headed screw have threads with positive and reverse threads, when the double-headed screw rotates, both ends will simultaneously extend into or out of the internal thread hole, which makes the connecting rod relatively approach or move away from the middle part of the double-headed screw. Under the action of the connecting rod, the two adjusting screws relatively approach or move away from each other. Since the two adjusting screws are located at the rear end of the pliers body, when the middle parts of the two pliers bodies rotate, the front ends of the two pliers bodies can move away from or approach each other, and further the front ends of the jaw heads move away from or approach each other, realizing the opening of the circlip and facilitating the disassembly and assembly of the circlip. Compared with the prior art, in this solution, there is no need to use the hand grip force to disassemble and assemble the circlip. Only by rotating the double-headed screw, the pliers body can be rotated through the action of thread connection, realizing the disassembly and assembly of the circlip. The circlip pliers in this solution are time-saving and labor-saving to use, without cumbersome operations, and greatly improve the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic structural diagram of a multifunctional circlip pliers shown in an exemplary embodiment;

[0017] Figure 2 Shown is a schematic structural diagram of a bent jaw head in a multifunctional circlip pliers shown in an exemplary embodiment;

[0018] Figure 3 Shown is a cross-sectional structural view of an adjusting part in a multifunctional circlip pliers shown in an exemplary embodiment;

[0019] Figure 4 Show the assembly state diagram of a multi-functional circlip pliers shown in an exemplary embodiment;

[0020] Figure 5 Show another assembly state diagram of a multi-functional circlip pliers shown in an exemplary embodiment;

[0021] Figure 6 Show yet another assembly state diagram of a multi-functional circlip pliers shown in an exemplary embodiment;

[0022] Figure 7 Show the usage state diagram of a multi-functional circlip pliers shown in an exemplary embodiment;

[0023] Figure 8 Show the usage state diagram of a multi-functional circlip pliers shown in an exemplary embodiment;

[0024] Figure 9 Show the usage state diagram of a multi-functional circlip pliers shown in an exemplary embodiment.

[0025] Description of the reference numerals in the embodiment includes:

[0026] Plier head 10, cylindrical structure 11, sliding pin 12,

[0027] Plier body 20, pivot pin 21, chute 22, adjusting screw 23, hexagon nut 24,

[0028] Double-headed screw 30, nut structure 31, connecting rod 32, universal ball head 33, internal screw hole 34. Detailed implementation manners

[0029] The following uses specific specific examples to illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0030] The following will describe the implementation manners of the present invention with reference to the drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for explaining the present invention and not for limiting the protection scope of the present invention.

[0031] It should be noted that the illustrations provided in the following embodiments only schematically illustrate the basic concept of the present invention. Therefore, only the components related to the present invention are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and proportion of each component in actual implementation can be arbitrarily changed, and the layout type of its components may also be more complex.

[0032] In the following description, a large number of details are explored to provide a more thorough explanation of the embodiments of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present invention difficult to understand.

[0033] As Figures 1 to 9 shown, in an exemplary embodiment, a multi-functional circlip pliers includes:

[0034] A pliers head 10, the front end of the pliers head 10 is used to insert into the ear hole of the circlip;

[0035] Pliers bodies 20, there are two pliers bodies 20, the two pliers bodies 20 are symmetrically arranged and rotatably connected in the middle. A chute 22 is provided at the front end of the pliers body 20, and an adjusting screw 23 is provided at the rear end of the pliers body 20. The rear end of the pliers head 10 is used to insert into the chute 22 for clamping;

[0036] An adjusting part, the adjusting part includes a double-headed screw 30 and two connecting rods 32. The two ends of the double-headed screw 30 have threads with positive and reverse threads. A universal ball head 33 is embedded inside one end of the connecting rod 32, and an internal thread hole 34 for threadedly connecting with the double-headed screw 30 is provided at the other end of the connecting rod 32. The center of the universal ball head 33 is threadedly connected with the adjusting screw 23.

[0037] Among them, the middle parts of the two pliers bodies 20 are provided with mating pin holes, which are defined by a rotating pin 21 in the pin holes, enabling the two pliers bodies 20 to rotate along the rotating pin 21. The structure of this part can adopt the structure in existing pliers. The two ends of the double-headed screw 30 are threads with positive and reverse threads, that is, the two ends of the double-headed screw 30 respectively have thread structures, and the thread directions of the thread structures at both ends are opposite. If one end is a thread with a positive thread, the other end is a thread with a reverse thread. The universal ball head 33 is embedded at one end of the connecting rod 32 and can rotate in any direction. Specifically, it can be set that the end of the connecting rod 32 has a spherical hole, the outside of the universal ball head 33 is spherical and is embedded in the spherical hole. When the circlip pliers are in use, the distance between the two adjusting screws 23 is increased by rotating the double-headed screw 30. During adjustment, the included angle ɑ at the rear end of the pliers body (the included angle between the rear parts of the two pliers bodies) will change due to the change in distance. Due to the existence of the universal ball head 33, the end of the connecting rod 32 will not be limited and stuck during adjustment.

[0038] Before using a multifunctional circlip pliers, first perform assembly. Specifically, insert the rear end of the pliers head 10 into the sliding groove 22 and clamp it tightly. Then, sleeved the universal ball head 33 on the adjusting screw 23 and fixedly connect it to the adjusting screw 23. The double-headed screw 30 is respectively inserted into the internal screw holes 34 of the two connecting rods 32. When a multifunctional circlip pliers is in use, insert the front end of the pliers head 10 into the ear hole of the circlip, and rotate the double-headed screw 30. Since the two ends of the double-headed screw 30 are threads with positive and reverse threads, when the double-headed screw 30 rotates, both ends will simultaneously extend into or out of the internal screw hole 34. This makes the two connecting rods 32 relatively approach or move away from the middle of the double-headed screw 30. Under the action of the connecting rods 32, the two adjusting screws 23 relatively approach or relatively move away from each other. Since the two adjusting screws 23 are located at the rear end of the pliers body 20, the front ends of the two pliers bodies 20 can be made to move away from or approach each other by rotating the middle parts of the two pliers bodies 20, realizing the opening of the circlip and facilitating the disassembly and assembly of the circlip.

[0039] In some embodiments, permanent magnets are provided in both the pliers head 10 and the sliding groove 22, and the rear end of the pliers head 10 inserted into the sliding groove 22 can be magnetically adsorbed and fixed. In order to make it difficult for the rear end of the pliers head 10 to fall off after it extends into the sliding groove 22.

[0040] In some embodiments, the rear end of the pliers head 10 is a sliding pin 12, and the cross-section of the sliding pin 12 and the cross-section of the sliding groove 22 are both regular polygons. For example, Figure 1 and Figure 2 as shown, the cross-section of the sliding pin 12 and the cross-section of the sliding groove 22 are corresponding regular polygons, and specifically can be square. Regular polygons are not prone to rotational displacement.

[0041] In some embodiments, the front end of the jaw 10 is a cylindrical structure 11, and the central axis of the cylindrical structure 11 is parallel to but not aligned with the central axis of the jaw 10. For example, Figure 1 and Figure 2 、 Figures 4 to 9 As shown, when the central axis of the cylindrical structure 11 is not aligned with the central axis of the jaw 10, the cylindrical structure 11 is eccentrically arranged at the front end of the jaw 10. When the sliding pin 12 is assembled into the sliding groove 22, the sliding pin 12 can be rotated to make the cylindrical structure 11 in different positions, so that the distance between the two cylindrical structures 11 can be changed. When using this circlip pliers, according to the distance between the ear holes on the circlip, a position where the cylindrical structure 11 matches it can be selected for installation. For example, if the distance between the two ear holes on the circlip is relatively close, the jaw 10 in the Figure 4 state is installed on the pliers body 20; if the distance between the two ear holes on the circlip is average, the jaw 10 in the Figure 5 state is installed on the pliers body 20; if the distance between the two ear holes on the circlip is relatively far, the jaw 10 in the Figure 6 state is installed on the pliers body 20, and then the circlip pliers are used; after the jaw 10 is installed, the circlip pliers are used, which further saves time and effort and improves the use efficiency of the circlip pliers.

[0042] In some embodiments, the cylindrical structure 11 is linear or bent. For example, Figure 1 The cylindrical structure 11 at the front end of the jaw 10 can be designed to be linear according to the use requirements. As shown in FIG. 2, the cylindrical structure 11 at the front end of the jaw 10 can also be designed to be bent according to the use requirements.

[0043] In some embodiments, the middle part of the double-headed screw 30 is a nut structure 31 with a hexagonal cross-section. For example, Figure 1 、 Figures 4 to 9 As shown, in order to facilitate the rotation of the double-headed screw 30, its middle part is designed as a nut structure 31 with a hexagonal shape, and a special tool can be used to rotate it.

[0044] In some embodiments, hexagonal nuts 24 are arranged at both ends of the adjusting screw 23 where the universal ball head 33 is located, and the hexagonal nuts 24 are used to limit the position of the universal ball head 33 on the adjusting screw 23. For example, Figure 1 、 Figures 4 to 9 As shown, in order to facilitate the fixation of the universal ball head 33 on the adjusting screw 23, the hexagonal nut 24 can be used to roughly limit the position of the universal ball head 33.

[0045] When using this circlip pliers, according to the use of the circlip to be installed or removed, select the initial included angle of the cylindrical structure 11 of the corresponding jaw 10, that is, the distance between the heads of the jaws 10.

[0046] When installing the hole retaining circlip, check the distance between the circlip ear holes, and determine the distance between the two magnetic circlip heads. As Figures 7 to 9 shown, select the way with the closest distance, insert the pliers head 10 into the circlip ear hole, then adjust the double-headed screw 30 to make the diameter of the hole retaining circlip smaller until the circlip part can be placed into the circlip groove of the hole retaining, and then adjust the double-headed screw 30 to make the diameter of the circlip ring larger so that the circlip is completely embedded in the circlip groove. Then loosen the circlip pliers a little and remove the circlip pliers to complete the installation of the hole retaining.

[0047] When disassembling the hole retaining circlip, by the same token, select the corresponding pliers head 10, adjust the distance of the cylindrical structure 11 on the pliers head 10, put the pliers head 10 into the circlip ear hole, adjust the double-headed screw 30, tighten the circlip pliers to make the diameter of the hole retaining circlip smaller, disengage from the circlip groove, and take out the circlip ring.

[0048] When installing the shaft retaining circlip, select the corresponding magnetic pliers head 10 and combination method, and adjust the distance of the pliers head 10. As Figures 4 to 6 shown, put the pliers head 10 into the circlip ear hole, adjust the double-headed screw 30, loosen the circlip pliers to make the diameter of the shaft retaining circlip larger, pass through the shaft, and slide into the motor shaft circlip groove. Then adjust the circlip pliers to make the distance of the cylindrical structure 11 on the pliers head 10 smaller and completely embed it in the circlip groove. Then appropriately reduce the distance of the pliers head 10 and take out the circlip pliers.

[0049] Similarly, when disassembling the shaft retaining circlip, put the cylindrical structure 11 of the pliers head 10 into the shaft retaining circlip hole, adjust the double-headed screw 30 to increase the distance of the cylindrical structure 11 on the pliers head 10. When the diameter of the shaft retaining circlip becomes larger than the diameter of the rotating shaft, the circlip ring can slide out of the circlip groove. Translate the circlip ring and take out the circlip to complete the disassembly.

[0050] The circlip pliers in this solution can not only be used as an internal circlip pliers, but also as an external circlip pliers. During the use process, by rotating the bolt nut through the opening fork, the included angle at the end of the circlip pliers is enlarged or reduced, so as to adjust the distance of the cylindrical structure 11 on the pliers head 10 to meet the needs of installing and disassembling the circlip ring. During the use process, it achieves the effects of labor-saving, stable, simple, convenient and fast operation. Especially, it overcomes the defects that the common circlip pliers are more laborious and time-consuming when installing and disassembling circlips with large diameter and thickness, and it is not easy to take out successfully in one or two attempts, and there are targeted requirements for the users. Therefore, it can improve the efficiency of installation and disassembly and is worthy of popularization and application.

[0051] The above embodiments are only illustrative of the principles and effects of the present utility model and are not intended to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A multifunctional circlip pliers, characterized in that: include: A pliers head, the front end of which is used to insert into the ear hole of the retaining ring; The pliers are two in number, the two pliers are symmetrically arranged and rotatably connected in the middle, the front end of the pliers is provided with a slide groove, the rear end of the pliers is provided with an adjustment screw, and the rear end of the pliers head is used to be inserted into the slide groove for clamping; The adjusting part includes a double-headed screw and two connecting rods, both ends of the double-headed screw are threads with positive and negative threads, a universal ball head is embedded in one end of the connecting rod, and the other end of the connecting rod is provided with an internal screw hole threadedly connected to the double-headed screw, and the center of the universal ball head is threadedly connected to the adjustment screw.

2. The multifunctional circlip pliers according to claim 1, characterized in that: Permanent magnets are arranged in both the clamp head and the slide slot, and the rear end of the clamp head can be inserted into the slide slot and fixed by magnetic adsorption.

3. The multifunctional circlip pliers according to claim 2, characterized in that: The rear end of the clamp head is a sliding pin, and the cross-sections of the sliding pin and the sliding groove are both regular polygons.

4. The multifunctional circlip pliers according to claim 3, characterized in that: The front end of the pliers head is a cylindrical structure, and the central axis of the cylindrical structure is parallel to but not aligned with the central axis of the pliers head.

5. The multifunctional circlip pliers according to claim 4, characterized in that: The cylindrical structure is a straight line or a bent type.

6. A multifunctional circlip pliers according to any one of claims 1 to 5, characterized in that: The middle part of the double-headed screw is a nut structure with a hexagonal cross section.

7. The multifunctional circlip pliers according to claim 6, characterized in that: Hexagonal nuts are arranged at both ends of the universal ball head on the adjusting screw, and the hexagonal nuts are used to limit the position of the universal ball head on the adjusting screw.

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