Parallel pliers
By setting adaptive rotating clamping blocks and clamping surfaces on the pliers, the problem of uneven clamping caused by the conical structure of the pliers head is solved, achieving better clamping effect and stability.
Patent Information
- Application Number
- CN202520009839.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Existing pliers have a tapered head structure, which causes point contact between the biting surfaces during clamping, resulting in uneven clamping effect.
Design a parallel clamp that uses clamping blocks and clamping surfaces on the clamp body to adaptively rotate and achieve line or surface contact, thus overcoming the problem of uneven clamping caused by point contact.
It improves the clamping effect, enhances the uniformity and stability of clamping, and strengthens the ability to fix the object to be clamped.
Smart Images
Figure CN223604169U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hand tool technical field especially is involved in a parallel clamp. BACKGROUND
[0002] Pliers are a kind of hand tools for clamping, fixing workpieces or twisting, bending, cutting metal wire. The existing pliers are mostly composed of two rotationally connected pliers bodies, and the two pliers bodies can be driven to rotate relative to each other by the hand-held part of the pliers.
[0003] However, both plier heads in the prior art are conical structures and are symmetrically arranged, as shown in Figure 1 Since the plier heads are conical structures, gaps are easily formed between the clamping surfaces of the two plier heads, and when clamping an article, the gaps increase, resulting in that only a point of the clamping surfaces between the two plier heads is in contact, which causes the clamped article to be unevenly stressed and affects the clamping effect.
[0004] Therefore, how to overcome the uneven stress of the clamped article when clamping by using the ordinary pliers in the prior art and affect the clamping effect has become a technical problem to be solved in the field. SUMMARY
[0005] Therefore, the utility model provides a parallel clamp to solve the technical problem that the clamping effect is affected due to the point contact of the clamping surfaces when clamping by using the pliers with conical plier heads in the prior art.
[0006] In order to achieve the above-mentioned purpose, the utility model provides a parallel clamp, which comprises a first plier body and a second plier body, the first plier body and the second plier body are rotationally connected, a first clamping surface is arranged on the first plier body, a second clamping surface is arranged on the second plier body, when the first plier body and the second plier body rotate relative to each other, the first clamping surface and the second clamping surface rotate towards the direction of approaching or moving away from each other, a clamping block is arranged on the first clamping surface or the second clamping surface, when the second clamping surface or the first clamping surface is clamped with the clamping surface of the clamping block, the clamping block is adapted to rotate to make the second clamping surface or the first clamping surface parallel to the clamping surface of the clamping block.
[0007] Optionally, a groove is arranged on the first clamping surface or the second clamping surface, the clamping block is arranged in the groove, and the clamping block is adapted to rotate in the groove.
[0008] Optionally, the groove is an arc-shaped groove, and the surface of the clamping block in contact with the groove is an arc-shaped surface.
[0009] Optionally, opposite sides of the groove are provided with strip-shaped protrusions, and two sides of the arc-shaped surface of the clamping block are provided with arc-shaped protrusions, and when the clamping block is placed in the groove, the strip-shaped protrusions are located above the arc-shaped protrusions.
[0010] Optionally, the strip-shaped protrusions are chamfered.
[0011] Optionally, the arc and size of the arc-shaped protrusions are consistent with the arc and size of the groove.
[0012] Optionally, the clamping surface is provided with a recess.
[0013] Optionally, the recess is petal-shaped.
[0014] Optionally, the recess is located at a middle position of the clamping surface.
[0015] Optionally, the first forceps body comprises a forceps body and a forceps head, the forceps head is detachably arranged at one side of the forceps body, the first clamping surface is arranged on the forceps head, and the second forceps body is an integral forming piece and has a width and a thickness smaller than those of the first forceps body.
[0016] The parallel forceps has the following technical effects:
[0017] The parallel forceps mainly comprises a first forceps body and a second forceps body, and is same as a traditional forceps in that the first forceps body and the second forceps body are rotationally connected, the first forceps body is provided with a first clamping surface, the second forceps body is provided with a second clamping surface, and the first clamping surface and the second clamping surface rotate towards directions of approaching or moving away from each other when the first forceps body and the second forceps body rotate relative to each other, and is different from the traditional forceps in that the first clamping surface or the second clamping surface is provided with a clamping block, and the clamping block self-adapts to rotate when the second clamping surface or the first clamping surface and the clamping surface of the clamping block are engaged and clamped, that is, the clamping block slightly swings within a certain range to make the second clamping surface or the first clamping surface and the clamping surface of the clamping block dynamically change, better adhere to a part to be adjusted, and try to realize line contact or surface contact between the clamped object and the clamping surface, so as to improve the defect of poor clamping effect caused by point contact. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating creative labor.
[0019] Figure 1 It is a three-dimensional structure schematic view of the prior art forceps;
[0020] Figure 2 is a three-dimensional structure schematic diagram of the parallel pliers of the utility model;
[0021] Figure 3 is Figure 2 the enlarged structure schematic diagram of A in the middle;
[0022] Figure 4 is Figure 2 the front view of the parallel pliers in the middle;
[0023] Figure 5 is Figure 2 the side view of the parallel pliers in the middle;
[0024] Figure 6 is Figure 5 the sectional view of A-A direction in the middle;
[0025] Figure 7 is Figure 2 the structure schematic diagram of the clamping block of the parallel pliers in the middle;
[0026] Figure 8 is Figure 2 the structure schematic diagram of the pliers head of the parallel pliers in the middle.
[0027] wherein, Figures 1-8 :
[0028] 1, first pliers body;11, first clamping surface;12, pliers body;13, pliers head;131, recess;132, strip-shaped protrusion;
[0029] 2, second pliers body;21, second clamping surface;3, clamping block;31, clamping surface;32, arc-shaped protrusion;33, recess. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other implementation manners obtained by the person skilled in the art without making creative labor belong to the range of the utility model.
[0031] Based on the defects in the prior art, the specific drawings of the utility model will be combined below Figures 2-8 The preferred embodiment of the parallel pliers of the utility model is described in detail.
[0032] As Figures 2-8As shown, the parallel clamp comprises a first clamp body 1 and a second clamp body 2, the first clamp body 1 and the second clamp body 2 are rotationally connected, that is, the first clamp body 1 and the second clamp body 2 are simultaneously connected with the rotation shaft, and the first clamp body 1 and the second clamp body 2 can rotate relative to the rotation shaft, that is, the traditional hinge.
[0033] A first clamping surface 11 is arranged on the first clamp body 1, and a second clamping surface 21 is arranged on the second clamp body 2, when the first clamp body 1 and the second clamp body 2 rotate relative to each other, the first clamping surface 11 and the second clamping surface 21 rotate towards each other or away from each other, and the first clamping surface 11 and the second clamping surface 21 are both inclined surfaces, the inclination of the inclined surface is small, and the first clamping surface 11 and the second clamping surface 21 gradually increase in the direction away from the rotation shaft, that is, the gap between the first clamping surface 11 and the second clamping surface 21 gradually increases from inside to outside.
[0034] In order to overcome the defect that the gap between the first clamping surface 11 and the second clamping surface 21 gradually increases from inside to outside, resulting in poor clamping effect, as shown in Figures 2-4 As shown, the first clamping surface 11 or the second clamping surface 21 is provided with a clamping block 3, and the first clamping surface 11 is provided with a clamping block 3 in this embodiment, so that the second clamping surface 21 and the clamping surface 31 on the clamping block 3 form a clamping surface, when the second clamping surface 21 and the clamping surface 31 of the clamping block 3 are clamped, the clamping block 3 is self-adapting to rotate, so that the second clamping surface 21 or the first clamping surface 11 and the clamping surface 31 of the clamping block 3 dynamically change, so as to better fit the part to be adjusted.
[0035] Here, self-adapting rotation refers to that when the to-be-clamped object is placed between the second clamping surface 21 and the clamping surface 31 of the clamping block 3, the clamping block 3 can be slightly adjusted, so that its own clamping surface 31 and the second clamping surface 21 dynamically change, so that the to-be-clamped object and the second clamping surface 21 and the clamping surface 31 of the clamping block 3 can form a line contact or a surface contact, overcoming the defect that point contact causes uneven force of clamping force.
[0036] The installation mode of the clamping block 3 on the first clamping surface 11 will be described in detail below.
[0037] As shown in Figure 8 A groove 131 is arranged on the first clamping surface 11, that is, the groove 131 is recessed inward from the surface of the first clamping surface 11, and the clamping block 3 is installed in the groove 131, and the clamping block 3 is self-adapting to rotate in the groove 131, so as to adjust the clamping surface 31 of the clamping block 3 to be parallel to the second clamping surface 21.
[0038] As shown in 8, the groove 131 of the present embodiment is preferably an arc-shaped groove, and the surface of the clamping block 3 in contact with the groove 131 is preferably an arc-shaped surface, through the arrangement of the arc-shaped groove and the arc-shaped surface, the clamping block 3 can be slightly rotated in the groove 131.
[0039] As shown in Figure 7 and Figure 8 , the opposite sides of the groove 131 are provided with strip-shaped protrusions 132, which are preferably chamfered, and more preferably rounded, and the bottom of the groove 131 opposite the strip-shaped protrusions 132 is hollowed out. The two sides of the arc-shaped surface of the clamping block 3 are provided with arc-shaped protrusions 32, the curvature and size of which are consistent with those of the groove 131. When the clamping block 3 is placed in the groove 131, the strip-shaped protrusions 132 are located above the arc-shaped protrusions 32, i.e. the arc-shaped protrusions 32 are located between the strip-shaped protrusions 132 and the hollowed-out bottom of the groove 131.
[0040] The strip-shaped protrusions 132 of the present embodiment are designed with rounded corners, which can smoothly contact the upper end surface of the arc-shaped protrusions 32, avoiding the occurrence of jamming, and thus affecting the rotating effect of the clamping block 3 in the groove 131.
[0041] When the clamping block 3 is installed in the groove 131, since the arc-shaped protrusions 32 are located between the strip-shaped protrusions 132 and the hollowed-out bottom of the groove 131, the clamping block 3 can be clamped in the groove 131, and when the direction is changed, the clamping block 3 will not fall out of the groove 131.
[0042] In order to enhance the installation strength of the clamping block 3 in the groove 131, the arc-shaped surface of the clamping block 3 can also have a mounting hole, and the bottom of the groove 131 also has a mounting hole, and the connecting columns with screws at both ends are simultaneously installed in the mounting holes, thereby enhancing the installation strength of the clamping block 3 in the groove 131.
[0043] As a preferred embodiment, as shown in Figure 6 and Figure 7 , the clamping surface 31 is provided with a recessed portion 33, which is located at the middle position of the clamping surface 31, and the recessed portion 33 is preferably petal-shaped, and more preferably has four petals.
[0044] When the object to be clamped is placed between the second clamping surface 21 and the clamping surface 31 of the clamping block 3, the recessed portion 33 of the present embodiment can better clamp the object to be clamped, so that the object to be clamped is not easy to shift, i.e. to prevent the object to be clamped from moving on the clamping surface 31, thereby improving the clamping effect.
[0045] The petal-shaped recessed portion 33 of the present embodiment extends to both sides of the clamping block 3, so that when the object to be clamped is the leg of a pair of glasses, the leg can be placed in the groove 131 and is not easy to shift in the recessed portion 33, thereby improving the clamping effect.
[0046] As a preferred embodiment, as shown in Figures 2-6As shown, the first plier body 1 comprises a plier body 12 and a plier head 13, the plier head 13 is detachably arranged on one side of the plier body 12, preferably fixed by screws, the first clamping surface 11 is located on the plier head 13, the second plier body 2 is an integral forming piece, the length of which is consistent with the first plier body 1, but the width and thickness are smaller than those of the first plier body 1, which is more beneficial to force when clamping.
[0047] In the description of the present application, it should be explained that, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0048] In the description of the present application, it should be explained that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0049] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A parallel pliers comprising a first plier body and a second plier body, the first plier body and the second plier body being pivotally connected, the first plier body being provided with a first clamping surface, the second plier body being provided with a second clamping surface, the first clamping surface and the second clamping surface being rotated in a direction of approaching or moving away from each other when the first plier body and the second plier body are relatively rotated, characterized in that, The first clamping surface or the second clamping surface is provided with a clamping block, and when the second clamping surface or the first clamping surface engages with the clamping surface of the clamping block, the clamping block rotates automatically.
2. The parallel pliers according to claim 1, characterized in that The first clamping surface or the second clamping surface is provided with a groove, and the clamping block is arranged in the groove and rotates automatically in the groove.
3. The parallel pliers according to claim 2, characterized in that The groove is an arc-shaped groove, and the surface of the clamping block in contact with the groove is an arc-shaped surface.
4. The parallel pliers according to claim 3, characterized in that The opposite sides of the groove are provided with strip-shaped protrusions, and the two sides of the arc-shaped surface of the clamping block are provided with arc-shaped protrusions, and when the clamping block is arranged in the groove, the strip-shaped protrusions are located above the arc-shaped protrusions.
5. The parallel pliers according to claim 4, characterized in that The strip-shaped protrusions are chamfered.
6. The parallel pliers according to claim 4, characterized in that, The curvature and size of the arc-shaped protrusions are consistent with the curvature and size of the groove.
7. Parallel pliers according to any of claims 2-6, characterized in that The clamping surface is provided with a recess.
8. The parallel pliers according to claim 7, characterized in that The recess is petal-shaped.
9. The parallel pliers of claim 7, wherein, The recess is located at the middle position of the clamping surface.
10. The parallel pliers of claim 1, wherein, The first plier body comprises a plier body and a plier head, the plier head is detachably arranged at one side of the plier body, the first clamping surface is located on the plier head, and the second plier body is an integral forming part and has a width and a thickness smaller than those of the first plier body.