Snap spring pliers

Abstract

The clamp spring pliers are used for assembling and disassembling an E-shaped clamp spring, two clamping grooves are formed in the inner circumferential wall of the E-shaped clamp spring, the clamp spring pliers comprise plier handles, plier arms and plier heads, the plier arms are arranged at the front ends of the plier handles, and arc-shaped grooves matched with the E-shaped clamp spring are formed in the ends, away from the plier handles, of the plier arms. Partition holes extending in the length direction of the clamp arms are formed in the groove walls of the arc-shaped grooves. The tong head comprises a mounting block and a clamping block arranged on the mounting block; the mounting blocks are arranged at the ends, away from the forceps handles, of the forceps arms, and partial structures of the mounting blocks shield notches of the arc-shaped grooves; partial structures of the clamping blocks are located in the arc-shaped grooves, the clamping blocks and the peripheral side walls of the arc-shaped grooves are arranged at intervals, and the clamping blocks are used for being matched with one clamping groove in an inserted mode; the groove wall of the arc-shaped groove, the mounting block and the clamping block jointly define a limiting space used for abutting against and limiting the E-shaped clamping spring. The utility model aims to provide an E-shaped clamp spring assembling and disassembling integrated clamp.

Description

Technical Field

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

[0002] During the assembly and adjustment process, some shaft workpieces need to be installed with E-type retaining rings in the shaft grooves of machines and equipment to prevent the axial movement of parts on the shaft.

[0003] When designing the commonly used E-type circlip pliers, in order to be able to clamp the circlip, the arc of the E-type circlip pliers is slightly smaller than the diameter of the E-type circlip. E-type circlip pliers are generally divided into two types: removal type and installation type. When operating the installation type circlip pliers, the operator needs to wear protective gloves to put the E-type circlip into the E-type circlip pliers, and then push it hard to push the E-type circlip into the shaft groove of the shaft workpiece; when using the removal type circlip pliers, the opening of the E-type circlip needs to be rotated towards the circlip pliers, and then the circlip pliers are used to push the E-type circlip out forcefully.

[0004] Thus, different circlip pliers are required for installing and removing the E-type circlips, which makes the circlip pliers relatively simple in function, and relatively troublesome in actual operation and inconvenient to use. Utility Model Content

[0005] The main purpose of the utility model is to provide a circlip pliers, in particular to provide an E-type circlip assembly and disassembly integrated pliers.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a circlip pliers for loading and unloading E-type circlips, wherein the inner peripheral wall of the E-type circlip is formed with two clamping grooves, and the circlip pliers include:

[0007] Pliers handle;

[0008] A clamp arm, the clamp arm is arranged at the front end of the clamp handle, an arc groove adapted to the E-type clamp spring is formed at one end of the clamp arm away from the clamp handle, and a partition hole extending along the length direction of the clamp arm is formed on the groove wall of the arc groove; and

[0009] A pliers head, the pliers head comprising a mounting block and a clamping block arranged on the mounting block; the mounting block is arranged at one end of the pliers arm away from the pliers handle, and a part of the structure of the mounting block covers the notch of the arc-shaped groove; a part of the structure of the clamping block is located in the arc-shaped groove, and the clamping block is spaced from the peripheral side wall of the arc-shaped groove, and the clamping block is used to be plugged and matched with one of the clamping grooves;

[0010] The groove wall of the arc groove, the mounting block and the clamping block are jointly arranged to form a limiting space for abutting and limiting the E-shaped clamping spring.

[0011] Optionally, a portion of the mounting block is connected to the lower side of the clamp arm, and another portion of the mounting block is located directly below the arc groove; the clamping block is arranged at the edge of the mounting block and extends upward into the arc groove.

[0012] Optionally, the partition hole separates part of the structure of the pliers arm into a first clamping arm and a second clamping arm arranged side by side, and the circlip pliers include two pliers heads, which are respectively arranged on the lower side of the first clamping arm and the lower side of the second clamping arm, and the clamping blocks of the two pliers heads are used to be plugged into and cooperate with the two clamping grooves.

[0013] Optionally, the mounting block and the clamping block are both made of metal.

[0014] Optionally, the mounting block is a convex edge protruding from the groove wall of the arc-shaped groove, and the clamping block is arranged on the convex edge.

[0015] Optionally, the convex edge extends from the groove wall of the arc-shaped groove toward the center of the arc-shaped groove.

[0016] Optionally, the clamp arm is provided with a plurality of through holes, the plurality of through holes are arranged at intervals along the length direction of the clamp arm, and the plurality of through holes are all connected to the partition hole.

[0017] Optionally, the plurality of through holes are distributed equidistantly, and the central axes of the plurality of through holes are collinearly arranged with the central axis of the partition hole.

[0018] Optionally, the mounting block and the clamping block are an integrally formed structure.

[0019] Optionally, the circlip pliers further include an anti-slip sleeve, wherein the anti-slip sleeve is sleeved on an end of the pliers handle away from the pliers arm.

[0020] The circlip pliers provided by the utility model can realize the two functions of installation and disassembly by pushing and pulling, and there is no need to replace the pliers head. Specifically, when installing the E-type circlip, the E-type circlip is placed in the limiting space formed by the groove wall of the arc groove, the installation block and the clamping block, and the clamping block is inserted in the clamping groove of the E-type circlip, and the opening direction of the E-type circlip is aligned with the circlip shaft groove of the shaft workpiece, and it can be installed by pushing forward. After installation, the circlip pliers are pulled out along the axial direction of the shaft workpiece to complete the installation; and when disassembling, it is only necessary to move the circlip pliers along the axial direction of the shaft workpiece so that the clamping block of the pliers head can be inserted into the clamping groove of the E-type circlip. At this time, the E-type circlip is limited in the limiting space, and then the pliers handle is dragged in the opposite direction of the opening of the E-type circlip to remove the E-type circlip. On the one hand, the circlip pliers provided by the utility model can be used during disassembly or installation, which is more advantageous. On the other hand, when traditional circlip pliers are used to load and unload E-type circlips, the circlips are easy to pop out and fall off due to their large rigidity. The circlip pliers provided by the utility model limit the E-type circlip in three directions, so that the E-type circlip is not easy to fall off during the disassembly and installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the utility model of the circlip pliers;

[0023] Figure 2 This is a structural schematic diagram of an embodiment of the pliers head of the utility model;

[0024] Figure 3 The utility model is a schematic diagram of assembling the circlip pliers and the E-type circlip.

[0025] Description of Figure Numbers:

[0026] Label name Label name 100 Circlip pliers 2b Second clamping arm 1 Pliers handle 3 Clamp head 2 Clamp arm 31 Mounting Block 21 Arc groove 32 Card block 22 Partition hole 200 E-type circlip 23 Through hole 4 Card slot 2a First clamping arm

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] During the assembly and adjustment process, some shaft workpieces need to be installed with E-type retaining rings in the shaft grooves of machines and equipment to prevent the axial movement of parts on the shaft.

[0032] When designing the commonly used E-type circlip pliers, in order to be able to clamp the circlip, the arc of the E-type circlip pliers is slightly smaller than the diameter of the E-type circlip. E-type circlip pliers are generally divided into two types: removal type and installation type. When operating the installation type circlip pliers, the operator needs to wear protective gloves to put the E-type circlip into the E-type circlip pliers, and then push it hard to push the E-type circlip into the shaft groove of the shaft workpiece; when using the removal type circlip pliers, the opening of the E-type circlip needs to be rotated towards the circlip pliers, and then the circlip pliers are used to push the E-type circlip out forcefully.

[0033] Thus, different circlip pliers are required for installing and removing the E-type circlips, which makes the circlip pliers relatively simple in function, and relatively troublesome in actual operation and inconvenient to use.

[0034] For this reason, please see Figures 1 to 3 The utility model provides a circlip pliers 100, specifically, an E-type circlip assembly and disassembly integrated pliers.

[0035] The utility model discloses a circlip pliers 100, which are used for loading and unloading E-type circlips. The inner peripheral wall of the E-type circlip is formed with two clamping grooves 4. The circlip pliers 100 include a pliers handle 1, a pliers arm 2 and a pliers head 3. The pliers arm 2 is arranged at the front end of the pliers handle 1. An arc groove 21 adapted to the E-type circlip is formed at one end of the pliers arm 2 away from the pliers handle 1. A partition hole 22 extending along the length direction of the pliers arm 2 is formed on the groove wall of the arc groove 21. The pliers head 3 includes a mounting block 31 and a mounting hole 22 arranged on the mounting block 31. The clamping block 32; the mounting block 31 is arranged at the end of the pliers arm 2 away from the pliers handle 1, and part of the structure of the mounting block 31 covers the notch of the arc groove 21; part of the structure of the clamping block 32 is located in the arc groove 21, and the clamping block 32 is spaced apart from the peripheral side wall of the arc groove 21, and the clamping block 32 is used to be plugged and matched with a clamping groove 4; wherein, the groove wall of the arc groove 21, the mounting block 31 and the clamping block 32 are jointly surrounded to form a limiting space for abutting against the limiting E-type retaining spring.

[0036] It should be added that the E-type retaining ring is a standard part. The retaining ring pliers 100 provided by the utility model can realize the two functions of installation and removal by pushing and pulling, without replacing the pliers head 3. Specifically: when installing the E-type retaining ring, the E-type retaining ring is placed in the limiting space formed by the groove wall of the arc groove 21, the mounting block 31 and the clamping block 32, and the clamping block 32 is inserted in the clamping groove 4 of the E-type retaining ring, and the opening direction of the E-type retaining ring is aligned with the retaining ring shaft groove of the shaft workpiece, and it can be installed by pushing forward. After installation, the retaining ring pliers 100 are pulled out along the axial direction of the shaft workpiece to complete the installation; and when disassembling, it is only necessary to move the retaining ring pliers 100 along the axial direction of the shaft workpiece so that the clamping block 32 of the pliers head 3 can be inserted in the clamping groove 4 of the E-type retaining ring. At this time, the E-type retaining ring is limited in the limiting space, and then the pliers handle 1 is dragged in the opposite direction of the opening of the E-type retaining ring to remove the E-type retaining ring. On the one hand, the circlip pliers 100 provided by the utility model can be used during disassembly or installation, which is more advantageous. On the other hand, when the traditional circlip pliers 100 are used to load and unload the E-type circlip, the circlip is easy to pop out and fall off due to its large rigidity. The circlip pliers 100 provided by the utility model limit the E-type circlip in three directions, so that the E-type circlip is not easy to fall off during the disassembly and installation process.

[0037] To facilitate the installation of the jaws, in one embodiment of the present application, part of the structure of the mounting block 31 is connected to the lower side of the pliers arm 2, and another part of the structure of the mounting block 31 is located directly below the arc groove 21; the clamping block 32 is arranged at the edge of the mounting block 31 and extends upward into the arc groove 21. It should be added that when installing or removing the E-type retaining ring, the pliers head 3 cannot interfere with the shaft workpiece, so the mounting block 31 needs to be clamped on the side of the shaft workpiece, so the mounting block 31 can be a wedge-shaped block with a bevel or an arc-shaped structure that adapts to the outer shape of the shaft workpiece. The mounting block 31 can be fixed to the pliers arm 2 by welding or tightening the thread.

[0038] In order to further prevent the E-type retaining ring from falling off the retaining ring pliers 100 during installation and disassembly, in one embodiment of the present application, the partition hole 22 separates part of the structure of the clamp arm 2 into a first clamping arm 2a and a second clamping arm 2b arranged side by side, and the retaining ring pliers 100 include two clamp heads 3, and the two clamp heads 3 are respectively arranged on the lower side of the first clamping arm 2a and the lower side of the second clamping arm 2b, and the clamp blocks 32 of the two clamp heads 3 are used to plug and cooperate with the two clamp grooves 4. On the one hand, this design can share the pressure and load between the connecting parts, thereby improving the stability and reliability of the connection. By dispersing the pressure and load to the clamp blocks 32 of the two clamp heads 3, the force borne by a single clamp head 3 can be reduced, and the risk of wear and damage can be reduced; on the other hand, the limiting effect of E in one direction can be added, so that the E-type retaining ring is not easy to fall off during the disassembly and installation process.

[0039] In one embodiment of the present application, the mounting block 31 and the clamping block 32 are both made of metal. Metal materials usually have higher strength and hardness, can withstand greater pressure and load, ensure the stability and reliability of the connection, and metal materials usually have better wear resistance, can reduce friction and wear between connecting parts, and extend service life.

[0040] In order to reduce production and manufacturing costs, in one embodiment of the present application, the mounting block 31 is a convex edge protruding from the groove wall of the arc groove 21, and the clamping block 32 is arranged on the convex edge. In this way, a simpler and more economical connection structure can be achieved. This design can not only reduce material and processing costs, but also improve assembly efficiency and reliability. In addition, the convex edge forms the end face that carries the E-type clamping spring, so that the E-type clamping spring can be carried on the convex edge surface, effectively preventing the clamping spring from falling. Specifically, in one embodiment of the present application, the convex edge extends from the groove wall of the arc groove 21 to the center of the arc groove 21.

[0041] In one embodiment of the present application, the clamp arm 2 is provided with a plurality of through holes 23, which are arranged at intervals along the length direction of the clamp arm 2, and the plurality of through holes 23 are all connected to the partition hole 22. On the one hand, the provision of the through holes 23 can save materials, and on the other hand, the provision of the plurality of through holes 23 can make the arc groove 21 open freely, so that when the E-type clamp spring is pushed by the clamp arm 2, the arc groove 21 at the front end of the clamp arm 2 opens, and at the same time, the clamp arm 2 forms a counter-clamping force, so that the clamp spring is firmly locked.

[0042] In one embodiment of the present application, the plurality of through holes 23 are equidistantly distributed, and the central axis of the plurality of through holes 23 is collinearly arranged with the central axis of the partition hole 22. The collinear arrangement design also helps to reduce stress concentration of the clamp arm 2 and improve the durability and reliability of the clamp arm 2.

[0043] In one embodiment of the present application, the mounting block 31 and the clamping block 32 are an integrally formed structure, which can provide better structural strength and stability, reduce material loss and waste. In addition, the integrally formed structure can also improve the wear resistance and durability of the connecting parts, and reduce the risk of failure caused by loose or damaged connecting parts.

[0044] In one embodiment of the present application, the circlip pliers 100 further include an anti-slip sleeve, which is provided at one end of the pliers handle 1 away from the pliers arm 2. The provision of the anti-slip sleeve can improve the comfort and operational stability of the operator, and reduce the risk of hand fatigue and slippage. The anti-slip sleeve is usually made of soft material, which can provide a good grip and anti-slip effect, and can ensure that the operator can better control the pliers during use, and improve the operating accuracy and efficiency. In addition, the anti-slip sleeve can also protect the surface of the pliers handle 1 and extend the service life of the pliers.

[0045] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A circlip pliers, used for loading and unloading E-type circlips, wherein the inner peripheral wall of the E-type circlip is formed with two clamping grooves, characterized in that: The circlip pliers include: Pliers handle; A clamp arm, the clamp arm is arranged at the front end of the clamp handle, an arc groove adapted to the E-type clamp spring is formed at one end of the clamp arm away from the clamp handle, and a partition hole extending along the length direction of the clamp arm is formed on the groove wall of the arc groove; and A pliers head, the pliers head comprising a mounting block and a clamping block arranged on the mounting block; the mounting block is arranged at one end of the pliers arm away from the pliers handle, and a part of the structure of the mounting block covers the notch of the arc-shaped groove; a part of the structure of the clamping block is located in the arc-shaped groove, and the clamping block is spaced from the peripheral side wall of the arc-shaped groove, and the clamping block is used to be plugged and matched with one of the clamping grooves; The groove wall of the arc groove, the mounting block and the clamping block are jointly arranged to form a limiting space for abutting and limiting the E-shaped clamping spring.

2. The circlip pliers according to claim 1, characterized in that: A part of the structure of the mounting block is connected to the lower side of the clamp arm, and another part of the structure of the mounting block is located directly below the arc groove; the clamping block is arranged at the edge of the mounting block and extends upward into the arc groove.

3. The circlip pliers according to claim 2, characterized in that: The partition hole separates part of the structure of the pliers arm into a first clamping arm and a second clamping arm arranged side by side. The circlip pliers include two pliers heads, which are respectively arranged on the lower side of the first clamping arm and the lower side of the second clamping arm, and the clamping blocks of the two pliers heads are used to be plugged into and matched with the two clamping grooves.

4. The circlip pliers according to claim 2, characterized in that: The installation block and the clamping block are both made of metal.

5. The circlip pliers according to claim 1, characterized in that: The mounting block is a convex edge convexly arranged on the groove wall of the arc-shaped groove, and the clamping block is arranged on the convex edge.

6. The circlip pliers according to claim 5, characterized in that: The convex edge extends from the groove wall of the arc-shaped groove toward the center of the arc-shaped groove.

7. The circlip pliers according to any one of claims 1 to 6, characterized in that The clamp arm is provided with a plurality of through holes, the plurality of through holes are arranged at intervals along the length direction of the clamp arm, and the plurality of through holes are all communicated with the partition hole.

8. The circlip pliers according to claim 7, characterized in that: The plurality of through holes are distributed at equal intervals, and the central axes of the plurality of through holes are collinearly arranged with the central axis of the partition hole.

9. The circlip pliers according to any one of claims 1 to 6, characterized in that The mounting block and the clamping block are an integrally formed structure.

10. The circlip pliers according to any one of claims 1 to 6, characterized in that The circlip pliers also include an anti-slip sleeve, which is sleeved on an end of the pliers handle away from the pliers arm.

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