Telescopic clamp spring pliers

Abstract

The utility model discloses a telescopic snap spring plier, which comprises plier bodies, a telescopic plier head and a spring piece, a pair of plier bodies are hinged and symmetrically arranged, each plier body comprises a plier handle and a base rod, each base rod is arranged at one end of the corresponding plier handle, and a strip-shaped hole is formed in each base rod; the telescopic tong heads and the tong bodies are arranged in a one-to-one correspondence mode, each telescopic tong head comprises a tong head body and a sliding piece, and the sliding pieces are arranged in the strip-shaped holes and have a sliding state and a locking state along the strip-shaped holes. The forceps bodies and the telescopic forceps heads form a telescopic structure, when the angle between the two forceps heads is fixed, the telescopic action enables the superposition length of the forceps head bodies and the base rod to be increased, in the using process, the opening distance between the forceps heads at the ends of the two forceps head bodies is enlarged, the depth of the forceps heads capable of being inserted into a shaft hole is increased, and therefore the forceps are convenient to use. Therefore, corresponding use requirements are met, and one pair of clamp spring pliers can adapt to use of various clamp springs through stretching and retracting of the telescopic plier head.

Description

Technical Field

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

[0002] Circlip pliers are special tools used to install inner and outer circlips, and are similar in appearance to needle-nosed pliers. The pliers have a fixed length, and two pliers heads are hingedly arranged, and the circlips are disassembled and assembled in an opening and closing manner. For example, 201920983200.1 discloses a circlip pliers structure, including a pliers handle hinged at the front end and symmetrically arranged, a support portion is provided at the front end of the pliers handle, and a circlip pliers head is vertically provided at the top of the support portion.

[0003] The above-mentioned prior art also has the following disadvantages: circlip pliers are often used to assemble circlips in mechanical product assembly. Since there are many types of circlips, and the length and angle of the circlip pliers are fixed, it is necessary to replace various types of circlip pliers to match the use requirements of circlips of different specifications, which is inconvenient in use. Therefore, how to use a circlip pliers to adapt to the use of various circlips is a technical problem that needs to be solved. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies, to provide a telescopic circlip pliers, and to solve the technical problem in the prior art of how to adapt to the use of a variety of circlips by using one circlip pliers.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a retractable circlip pliers, comprising:

[0007] A pair of pliers bodies are hinged and symmetrically arranged, the pliers bodies include a pliers handle and a base rod, the base rod is arranged at one end of the pliers handle, and a strip hole is opened on the base rod;

[0008] A telescopic pliers head, wherein the telescopic pliers head is arranged in a one-to-one correspondence with the pliers body, the telescopic pliers head comprises a pliers head body and a sliding member, the sliding member is arranged in the strip hole and has two states of sliding and locking along the strip hole, the pliers head body is arranged on the sliding member, and the telescopic action is performed by sliding of the sliding member; and

[0009] A spring member is disposed between opposite sides of the two pliers handles.

[0010] In some embodiments, a guide hole is provided on the pliers head body, a guide column is provided at one end of the strip hole away from the pliers handle, and the guide column is slidably connected to the guide hole.

[0011] In some embodiments, the sliding member includes a bolt and a locking ring, the bolt passes through the strip hole and the guide hole, the locking ring is threadedly connected to the bolt, and the head of the bolt is respectively abutted against the side of the pliers head body and the base rod opposite to each other, and the locking ring is in a circular ring shape.

[0012] In some embodiments, it also includes a hinged seat, which includes an upper cover plate, a rotating shaft and a lower cover plate, and the upper cover plate, the rotating shaft and the lower cover plate are connected in sequence from top to bottom, and the two pliers are both rotatably connected to the rotating shaft and are limited between the upper cover plate and the lower cover plate.

[0013] In some embodiments, the spring member includes a connecting spring and a partition, the partition is connected to both the upper cover plate and the lower cover plate and is located between the two clamp handles, and the two connecting springs are respectively arranged on both sides of the partition and are respectively connected to the two clamp handles.

[0014] In some embodiments, a pushing assembly is also included, which includes a pushing piece, a limiting column and a locking piece. The sliding piece is fixed in the guide hole and extends upward. The limiting column is arranged on the pliers head body and forms a gap with the sliding piece. The pushing piece is arranged on the upper cover plate and plugged into the gap. The locking piece is arranged between the pushing piece and the upper cover plate for locking the position of the pushing piece.

[0015] In some embodiments, the push member includes an elastic plate, a guide cylinder and an arc rod, the arc rod is inserted in the gap, the elastic plate is connected to the arc rod, the guide cylinder is arranged on the upper cover plate, and the elastic plate is slidably connected to the inner side of the guide cylinder.

[0016] In some embodiments, the locking member includes a ridge and a slot, and a plurality of the slots are arranged equidistantly along the length direction of the elastic plate. The ridge is disposed on the upper cover plate and is engaged with the corresponding slot.

[0017] In some embodiments, one end of the elastic plate close to the clamp handle is bent upward.

[0018] In some embodiments, the cross-section of the card slot is an isosceles triangle.

[0019] Compared with the prior art, the telescopic circlip pliers provided by the utility model have a telescopic structure composed of a pliers body and a telescopic pliers head. When the angle between the two pliers heads is constant, the telescopic action lengthens the overlapping length of the pliers head body and the base rod. During use, the opening distance between the pliers heads at the ends of the two pliers head bodies is enlarged, and the depth to which the pliers heads can be inserted into the shaft hole is extended to meet corresponding usage requirements. A circlip pliers can adapt to the use of a variety of circlips by extending and retracting the telescopic pliers head. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the structure of the retractable circlip pliers provided by the embodiment of the utility model;

[0021] Figure 2 It is a three-dimensional structural diagram of a retractable circlip pliers provided by another embodiment of the utility model;

[0022] Figure 3 It is a three-dimensional exploded view of a retractable circlip pliers provided by another embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 1. Clamp body; 11. Clamp handle; 12. Base rod; 101. Strip hole;

[0025] 2. telescopic pliers head; 21. pliers head body; 22. sliding member; 221. bolt; 222. locking ring; 201. guide hole; 202. guide column;

[0026] 3. Spring member; 31. Connecting spring; 32. Partition plate;

[0027] 4. Articulated seat; 41. Upper cover plate; 42. Lower cover plate;

[0028] 5. Pushing assembly; 51. Pushing member; 52. Limiting column; 53. Locking member; 511. Elastic plate; 512. Guide cylinder; 513. Arc rod; 531. Protruding ridge; 532. Slot; 501. Gap. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] In order to solve the technical problem of how to adapt to the use of various circlips by using one circlip pliers, the utility model provides a telescopic circlip pliers, which can adapt to the use of various circlips by using one circlip pliers.

[0031] It should be noted that the retractable circlip pliers described in the utility model are used for but not limited to circlip pliers, etc. For the convenience of explanation, in the utility model, only the application of the retractable circlip pliers to circlip pliers is taken as an example for explanation, and the principle of applying the retractable circlip pliers to other types of equipment is substantially the same as the principle applied to pliers equipment, which will not be elaborated here.

[0032] See also Figure 1 , Figure 1The 3D diagram of the structure of the retractable circlip pliers in one embodiment of the utility model comprises a pliers body 1, a retractable pliers head 2 and a spring member 3. A pair of the pliers bodies 1 are hinged and symmetrically arranged to form the main structure of the circlip pliers, wherein the pliers body 1 comprises a pliers handle 11 and a base rod 12, the pliers handle 11 is used for hand-held grasping, the base rod 12 is used to connect the retractable pliers head 2, the base rod 12 is arranged at one end of the pliers handle 11, and a strip hole 101 is opened on the base rod 12, the strip hole 101 is parallel to the length direction of the base rod 12, and is used to match the retractable direction of the retractable pliers head 2. The telescopic pliers 2 are arranged in a one-to-one correspondence with the pliers body 1 and are installed at the base rod 12. The telescopic pliers 2 include a pliers body 21 and a sliding member 22. The sliding member 22 is arranged in the strip hole 101 and has two states along the strip hole 101: sliding and locking. In the sliding state, the telescopic pliers 2 can slide along the strip hole 101 to form telescopic movement. In the locked state, the telescopic pliers 2 cannot move, and the extended length is fixed, so that the subsequent retaining ring can be installed and removed. The pliers body 21 is arranged on the sliding member 22. Specifically, the pliers body 21 is mounted on the sliding member 22. The sliding member 22 is locked by pressing, and switched to the sliding state by releasing the pressing. The purpose of telescopic movement is achieved by the sliding of the sliding member 22. The spring member 3 is arranged between the opposite sides of the two pliers handles 11 to provide angle support for the pliers and the rebound force for the opening of the two pliers after they are closed.

[0033] In this embodiment, by switching the sliding member 22 to the sliding state and sliding the pliers head body 21 along the strip hole 101, the length of the pliers head can be adjusted by telescopic adjustment. When the angle between the pliers heads is constant, the telescopic action makes the overlapping length of the pliers head body 21 and the base rod 12 longer. During use, the open distance between the pliers heads at the ends of the two pliers head bodies 21 is enlarged, and the depth to which the pliers heads can be inserted into the shaft hole is extended to meet the use requirements. A circlip pliers can adapt to the use of various circlips by telescoping the telescopic pliers head 2.

[0034] In one embodiment, see Figure 1The guide post 202 is arranged at one end of the strip hole 101 away from the clamp handle 11 and is slidably connected to the guide hole 201. The sliding member 22 includes a bolt 221 and a locking ring 222. The guide post 202 cooperates with the guide hole 201 to guide the sliding and telescopic movement of the clamp body 21, which is not easy to be skewed. The bolt 221 passes through the strip hole 101 and the guide hole 201. The locking ring 222 is threadedly connected to the bolt 221 and abuts against the side of the clamp body 21 and the base rod 12 opposite to each other with the head of the bolt 221. By rotating the locking ring 222 and pressing downward, the head of the matching bolt 221 presses at the bottom, thereby clamping the clamp body 21 and the base rod 12 to form a locking.

[0035] In this embodiment, the locking ring 222 can be unscrewed to remove the bolt 221, thereby releasing the limit between the pliers head body 21 and the base rod 12. The pliers head body 21 and the base rod 12 can be directly disassembled to facilitate assembly and disassembly. When the pliers head body 21 does not meet the requirements or is damaged, it is easy to replace to adapt to different usage scenarios.

[0036] In one embodiment, see Figure 1 , and also includes an articulated seat 4, which includes an upper cover plate 41, a rotating shaft and a lower cover plate 42. The upper cover plate 41, the rotating shaft and the lower cover plate 42 are connected in sequence from top to bottom. The two pliers 1 are rotatably connected to the rotating shaft and are limited between the upper cover plate 41 and the lower cover plate 42. The rotating shaft is protected by the upper cover plate 41 and the lower cover plate 42 to improve the structural strength of the hinge, and the two pliers 1 have the function of upper and lower limiting, thereby improving the stability of their hinged rotation.

[0037] Furthermore, the spring member 3 includes a connecting spring 31 and a partition 32, the partition 32 is connected to both the upper cover plate 41 and the lower cover plate 42, and is located between the two clamp handles 11, the two connecting springs 31 are respectively arranged on both sides of the partition 32, and are respectively connected to the two clamp handles 11. By two symmetrically distributed connecting springs 31 arranged on both sides of the partition 32, the upper cover plate 41 and the lower cover plate 42 can be limited from rotating relative to the clamp body 1.

[0038] In another embodiment, see Figure 2 and Figure 3Based on the above embodiments, in order to facilitate telescopic regulation and simplify the locking action, it also includes a pushing component 5, which includes a pushing member 51, a limiting column 52 and a locking member 53. The sliding member 22 is fixed in the guide hole 201 and extends upward. The limiting column 52 is arranged on the clamp head body 21 and forms a gap 501 with the sliding member 22. The pushing member 51 is arranged on the upper cover plate 41 and plugged into the gap 501. When holding the circlip pliers, the pushing member 51 is pushed to push the sliding member 22 in the gap 501, wherein the sliding member 22 is always slidably connected with the strip hole 101, thereby forming a telescopic operation on the clamp head body 21. The locking member 53 is arranged between the pushing member 51 and the upper cover plate 41, and is used to lock the position of the pushing member 51. The position of the pushing member 51 is locked by the locking member 53, so that it is stuck in the gap 501 and the position of the clamp head body 21 is locked.

[0039] Furthermore, the pushing member 51 includes an elastic plate 511, a guide cylinder 512 and an arc rod 513, the arc rod 513 is inserted in the gap 501, the curvature of the arc rod 513 is concentric with the rotating axis of the hinge seat 4, and the elastic plate 511 is connected to the arc rod 513 to match the extension and retraction of the clamp head body 21. The guide cylinder 512 is arranged on the upper cover plate 41, and the elastic plate 511 is slidably connected to the inner side of the guide cylinder 512. The arc rod 513 is pushed to move by pushing the elastic plate 511, thereby pushing the sliding member 22 and the clamp head body 21 to move and retract.

[0040] In order to facilitate smooth sliding between the arc rod 513 and the sliding member 22, the locking ring 222 is in a circular shape.

[0041] Furthermore, in order to facilitate the locking of the push-pushing member 51, the locking member 53 includes a ridge 531 and a slot 532. A plurality of the slots 532 are arranged equidistantly along the length direction of the elastic plate 511. The ridge 531 is provided on the upper cover plate 41 and is engaged with the corresponding slot 532. The ridge 531 can be separated from the slot 532 by bending the elastic plate 511 upward to push the push-pushing member. The elastic plate 511 is released and the ridge 531 is engaged with the slot 532 under rebound to lock the member. The operation is convenient.

[0042] The cross section of the slot 532 is an isosceles triangle, and correspondingly, the cross section of the ridge 531 is also an isosceles triangle, and one or more ridges 531 can be arranged at equal intervals to perform a positioning function for engaging with the slot 532 .

[0043] Furthermore, in order to facilitate lifting of the elastic plate 511 , one end of the elastic plate 511 close to the clamp handle 11 is bent upward.

[0044] In order to better understand the present invention, the following Figures 1 to 3 The technical solution of the utility model is described in detail: In the basic mode, refer to Figure 1 , loosen the locking ring 222 to adjust the telescopic pliers head body 21, and then tighten the locking ring 222 to lock the position to achieve the purpose of telescopic adjustment. The two pliers head bodies 21 need to be operated separately; in the convenient mode, refer to Figure 2 and Figure 3 , bend the elastic plate 511 upward to separate the ridge 531 from the slot 532, push the elastic plate 511, and make the arc rod 513 push the sliding member 22 and the clamp head body 21 as a whole to form extension and retraction, then release the elastic plate 511, engage the ridge 531 with the slot 532 to position it, and both clamp head bodies 21 can be extended and retracted into place in one operation.

[0045] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A retractable circlip pliers, characterized in that: include: A pair of pliers bodies are hinged and symmetrically arranged, the pliers bodies include a pliers handle and a base rod, the base rod is arranged at one end of the pliers handle, and a strip hole is opened on the base rod; A telescopic pliers head, wherein the telescopic pliers head is arranged in a one-to-one correspondence with the pliers body, the telescopic pliers head comprises a pliers head body and a sliding member, the sliding member is arranged in the strip hole, and has two states of sliding and locking along the strip hole, the pliers head body is arranged on the sliding member, and the telescopic action is performed by sliding of the sliding member; as well as A spring member is disposed between opposite sides of the two pliers handles.

2. The telescopic circlip pliers according to claim 1, characterized in that: A guide hole is provided on the pliers head body, a guide column is provided at one end of the strip hole away from the pliers handle, and the guide column is slidably connected with the guide hole.

3. The telescopic circlip pliers according to claim 2, characterized in that: The sliding member includes a bolt and a locking ring. The bolt passes through the strip hole and the guide hole. The locking ring is threadedly connected to the bolt and abuts against the side of the clamp head body and the base rod respectively with the head of the bolt. The locking ring is in a circular ring shape.

4. The telescopic circlip pliers according to claim 2, characterized in that: It also includes an articulated seat, which includes an upper cover plate, a rotating shaft and a lower cover plate. The upper cover plate, the rotating shaft and the lower cover plate are connected in sequence from top to bottom. The two pliers are both rotatably connected to the rotating shaft and are limited between the upper cover plate and the lower cover plate.

5. The telescopic circlip pliers according to claim 4, characterized in that: The spring member comprises a connecting spring and a partition, wherein the partition is connected to both the upper cover plate and the lower cover plate and is located between the two clamp handles, and the two connecting springs are respectively arranged on both sides of the partition and are respectively connected to the two clamp handles.

6. The telescopic circlip pliers according to claim 5, characterized in that: It also includes a pushing assembly, which includes a pushing piece, a limiting column and a locking piece. The sliding piece is fixed in the guide hole and extends upward. The limiting column is arranged on the pliers head body and forms a gap with the sliding piece. The pushing piece is arranged on the upper cover plate and plugged into the gap. The locking piece is arranged between the pushing piece and the upper cover plate to lock the position of the pushing piece.

7. The telescopic circlip pliers according to claim 6, characterized in that: The push member includes an elastic plate, a guide cylinder and an arc rod, the arc rod is inserted in the gap, the elastic plate is connected to the arc rod, the guide cylinder is arranged on the upper cover plate, and the elastic plate is slidably connected to the inner side of the guide cylinder.

8. The telescopic circlip pliers according to claim 7, characterized in that: The locking member comprises a convex ridge and a slot, a plurality of the slots are arranged equidistantly along the length direction of the elastic plate, the convex ridge is arranged on the upper cover plate and is engaged with the corresponding slot.

9. The telescopic circlip pliers according to claim 8, characterized in that: One end of the elastic plate close to the clamp handle is bent upward.

10. The telescopic circlip pliers according to claim 9, characterized in that: The cross section of the card slot is an isosceles triangle.

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