CN216803221U

CN216803221U - Clamping tool

Info

Publication number: CN216803221U
Application number: CN202220389094.6U
Authority: CN
Inventors: 吴展翔; 刘立; 吕美凤; 万美湾; 吕吟; 杨阳; 邵思远
Original assignee: Commercial Aircraft Corp of China Ltd; Shanghai Aircraft Manufacturing Co Ltd
Current assignee: Commercial Aircraft Corp of China Ltd; Shanghai Aircraft Manufacturing Co Ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-06-24
Anticipated expiration: 2032-02-25

Abstract

The utility model belongs to the technical field of clamping tools and discloses a clamping tool which comprises a rotating shaft, a first clamp body and a second clamp body. The first clamp body is hinged to the rotating shaft, and a first clamping portion and a first operating portion are arranged on the first clamp body. The second pincers body is hinged on the rotating shaft, and a second clamping portion and a second operating portion are arranged on the second pincers body. The first operation portion and the second operation portion swing relatively, and the first clamping portion and the second clamping portion can be driven to be close to or far away from each other so as to clamp or loosen the bolt to be fixed. Be equipped with spacing arch on one of first operation portion and the second operation portion two, be equipped with on the other and spacing recess that can the buckle be connected with spacing arch. Spacing arch and spacing recess buckle are connected and can be made first clamping part and second clamping part keep at the clamping state to the fixing bolt is treated in the centre gripping, if need loosen and treat fixing bolt, pull first operation portion and second operation portion with power make spacing arch break away from in the spacing recess can, the centre gripping is convenient, easy operation.

Description

Clamping tool

Technical Field

The utility model relates to the technical field of clamping tools, in particular to a clamping tool.

Background

As shown in fig. 1, the one-side mounting bolt 3 ' needs to be placed in the mounting position in the figure before the aircraft horizontal tail rotor shaft 1 ' is assembled on the aircraft vertical tail rotor shaft 2 ', i.e., the head of the one-side mounting bolt 3 ' extends from the inner side of the aircraft vertical tail rotor shaft 2 ' to the outer side thereof. After the aircraft horizontal tail rotor shaft 1 ' is assembled to the aircraft vertical tail rotor shaft 2 ', there will be insufficient operating space to hold the head of the single-sided mounting bolt 3 '. At this time, if the one-side mounting bolt 3 'is not fixed, it is in an unfixed state, and is easily moved and dropped, thereby threatening the safety of the aircraft structure, and the one-side mounting bolt 3' in the unfixed state may cause the nut coupled to the rod portion thereof to be inconvenient to mount.

In the prior art, one end of the rod portion of the one-side mounting bolt 3' is temporarily fixed by means of tape-bonding. However, since other parts are required to be mounted at this position and the extension of the shaft of the one-side mounting bolt 3 'is short, the tape adhered to the one-side mounting bolt 3' may affect the subsequent mounting work.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a clamping tool which can clamp a single-side mounting bolt and is convenient to operate.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a gripping tool, comprising:

a rotating shaft;

the first clamp body is hinged to the rotating shaft and is provided with a first clamping part and a first operating part;

the second clamp body is hinged to the rotating shaft and is provided with a second clamping part and a second operating part;

the first operating part and the second operating part swing relatively, so that the first clamping part and the second clamping part can be close to or far away from each other to clamp or loosen the bolt to be fixed; one of the first operation part and the second operation part is provided with a limiting bulge, and the other one is provided with a limiting groove which can be connected with the limiting bulge in a buckling manner.

Optionally, one of the first operating portion and the second operating portion is provided with a positioning groove, and the other is provided with a positioning protrusion capable of being embedded into the positioning groove.

Optionally, one of the limiting protrusion and the limiting groove is arranged in the positioning groove, and the other is arranged on the positioning protrusion.

Optionally, the clamping device further includes a first limiting member and a second limiting member, the first limiting member and the second limiting member are both disposed on the rotating shaft, the first limiting member abuts against one side of the first clamp body far away from the second clamp body, and the second limiting member abuts against one side of the second clamp body far away from the first clamp body.

Optionally, the rotating shaft includes a connecting bolt, and the second limiting member is screwed to the connecting bolt.

Optionally, the rotating shaft further comprises a sleeve, the sleeve is sleeved on the connecting bolt, and the first clamp body and the second clamp body are both hinged to the sleeve.

Optionally, a first arc-shaped groove is formed in the first clamping portion, a second arc-shaped groove is formed in the second clamping portion, the first operation portion and the second operation portion swing relative to each other, and the first arc-shaped groove and the second arc-shaped groove can clamp or loosen the bolt to be fixed.

Optionally, the number of the first arc-shaped grooves is at least two, and the second clamping portion is provided with second arc-shaped grooves corresponding to the first arc-shaped grooves one to one.

Optionally, a guide surface is arranged on the limiting protrusion and/or the limiting groove.

Optionally, the first operating portion and the second operating portion both extend in a first direction, and the first direction extends in a direction away from a plane formed by the first clamping portion and the second clamping portion.

Has the advantages that:

the utility model provides a clamping tool, wherein a first operating part and a second operating part swing relatively, so that the first clamping part and the second clamping part are close to each other to clamp a bolt to be fixed. At this moment, the limiting protrusion and the limiting groove can be connected in a buckling mode, so that the relative positions of the first operating part and the second operating part are fixed, and the first clamping part and the second clamping part stably clamp the column to be fixed. Spacing arch and spacing recess buckle are connected, and user operation is convenient, can easily realize treating fixing bolt's unilateral fixed.

Drawings

FIG. 1 is a background diagram of an application as referred to in the background of the utility model;

FIG. 2 is a schematic structural diagram of a clamping tool provided in an embodiment of the present invention;

FIG. 3 is an exploded view of a gripping tool provided by an embodiment of the present invention;

FIG. 4 is an elevation view of a gripping tool provided by an embodiment of the present invention;

fig. 5 is a view from a-a in fig. 4.

In the figure:

1', a horizontal tail rotating shaft of the airplane; 2', an airplane vertical tail rotating shaft; 3', installing a bolt on one side;

1. a first caliper body; 11. a first clamping portion; 111. a first arc-shaped slot; 12. a first operation section; 121. a limiting bulge; 122. positioning a groove;

2. a second caliper body; 21. a second clamping portion; 211. a second arc-shaped slot; 22. a second operation section; 221. a limiting groove; 222. positioning the projection;

3. a rotating shaft; 31. a sleeve; 32. a connecting bolt;

4. a first limit piece;

5. a second limiting member;

6. and (7) a gasket.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The present embodiment provides a clamping tool, as shown in fig. 2, which includes a rotary shaft 3, a first caliper body 1 and a second caliper body 2. The first caliper body 1 is hinged on the rotating shaft 3, and a first clamping part 11 and a first operating part 12 are arranged on the first caliper body 1. The second clamp body 2 is hinged on the rotating shaft 3, and a second clamping part 21 and a second operating part 22 are arranged on the second clamp body 2. The first operating part 12 and the second operating part 22 swing relatively with the rotating shaft 3 as an axis, and the first operating part 12 and the second operating part 22 approach or separate from each other, at this time, the first clamping part 11 and the second clamping part 21 can be driven to approach or separate from each other, so as to clamp or loosen the bolt to be fixed.

With continued reference to fig. 2, in particular, the middle portions of the first caliper body 1 and the second caliper body 2 are hinged on the rotating shaft 3, and along the extending direction of the first caliper body 1, the first clamping portion 11 is located on one side of the rotating shaft 3, and the first operating portion 12 is located on the other side of the rotating shaft 3. In the extending direction of the second caliper body 2, the second clamping portion 21 is located on one side of the rotation axis 3 and is opposite to the first clamping portion 11, and the second operating portion 22 is located on the other side of the rotation axis 3 and is opposite to the first operating portion 12. The user swings the first operating part 12 and the second operating part 22 relatively, and the first clamping part 11 and the second clamping part 21 approach or separate from each other at the same time.

As shown in fig. 3, in order to enable the clamping tool to continuously clamp the bolt to be fixed, one of the first operating portion 12 and the second operating portion 22 is provided with a limiting protrusion 121, and the other one is provided with a limiting groove 221 which can be in snap-fit connection with the limiting protrusion 121. Specifically, in order to continuously clamp the bolt to be fixed, when the limiting protrusion 121 and the limiting groove 221 are snap-connected, the first clamping portion 11 and the second clamping portion 21 are close to each other to stably clamp the bolt to be fixed. When the bolt to be fixed needs to be loosened, the first operation part 12 and the second operation part 22 only need to be pulled by force to be away from each other, and the limiting protrusion 121 can be separated from the limiting groove 221. In the present embodiment, the stopper protrusion 121 is provided on the first operating part 12, and the stopper groove 221 is provided on the second operating part 22. Of course, in other embodiments, the position of the position-limiting protrusion 121 and the position-limiting groove 221 can be interchanged, and the technical effects can be achieved as well.

Alternatively, one of the first operating portion 12 and the second operating portion 22 is provided with a positioning groove 122, and the other is provided with a positioning protrusion 222 capable of being inserted into the positioning groove 122. The cooperation of the positioning groove 122 and the positioning protrusion 222 can prevent the user from performing transition operation on the first operating portion 12 and the second operating portion 22, and prevent the first pliers body 1 and the second pliers body 2 from being dislocated due to too large or too small included angles, thereby damaging the clamping tool. In the present embodiment, the positioning groove 122 is opened on the first operating portion 12, and the positioning protrusion 222 is provided on the second operating portion 22. Of course, in other embodiments, the positions of the positioning slot 122 and the positioning protrusion 222 can be interchanged, and the above technical effects can be achieved.

Alternatively, one of the stopper protrusion 121 and the stopper groove 221 is provided in the positioning groove 122, and the other is provided on the positioning protrusion 222. That is to say, when the limiting protrusion 121 is matched with the limiting groove 221, the positioning protrusion 222 and the positioning groove 122 are also matched with each other, and the user can judge the connection state of the limiting protrusion 121 and the limiting groove 221 by paying attention to the matching relationship between the positioning protrusion 222 and the positioning groove 122, so that the operation is convenient. Moreover, after the limiting protrusion 121 and the limiting groove 221 are connected, the limiting protrusion 121 and the limiting groove 221 are all hidden in the positioning groove 122 and the positioning protrusion 222, and the clamping tool is flat in structure and attractive in appearance. In the present embodiment, the position restricting protrusion 121 is accommodated in the positioning groove 122, and the position restricting groove 221 is opened on the positioning protrusion 222. In other embodiments, the positions of the two can be interchanged, and the technical effects can be achieved as well.

For convenience of operation, the limiting protrusion 121 is provided with a guide surface. Similarly, a guide surface may be disposed on the limiting groove 221. In this embodiment, as shown in fig. 3, the limiting protrusion 121 is a V-shaped protrusion, the limiting groove 221 is a V-shaped groove, and the inclined planes on the V-shaped protrusion and the V-shaped groove can provide a guiding function for the other.

Alternatively, the first operating portion 12 and the second operating portion 22 each extend in a first direction extending in a direction away from a plane formed by the first clamping portion 11 and the second clamping portion 21. In the present embodiment, as shown in fig. 2 and 3, the first operating portion 12 and the second operating portion 22 extend in the same direction, the first clamping portion 11 and the second clamping portion 21 extend in the same direction, and the first operating portion 12 and the first clamping portion 11 are perpendicular to each other. That is, the user can grasp and operate the first operating part 12 and the second operating part 22 at the side of the bolt to be fixed, so that the first clamping part 11 and the second clamping part 21 clamp or loosen the bolt to be fixed, the user operating space is sufficient, and the operation is convenient.

As shown in fig. 3 to fig. 5, optionally, the clamping device further includes a first limiting member 4 and a second limiting member 5, the first limiting member 4 and the second limiting member 5 are both disposed on the rotating shaft 3, the first limiting member 4 abuts against one side of the first clamp body 1 away from the second clamp body 2, and the second limiting member 5 abuts against one side of the second clamp body 2 away from the first clamp body 1. The first limiting member 4 and the second limiting member 5 constrain the first caliper body 1 and the second caliper body 2 on the rotation shaft 3 in the axial direction of the rotation shaft 3, and prevent the first caliper body 1 and the second caliper body 2 from being loosened from the rotation shaft 3. In this embodiment, the first limiting member 4 is a limiting ring, and the first caliper body 1 is provided with a groove for accommodating the first limiting member 4, so as to improve the compactness and the aesthetic property of the clamping tool.

Alternatively, the rotating shaft 3 includes a connecting bolt 32, and the second limiting member 5 is screwed to the connecting bolt 32. The connecting bolt 32 is in threaded connection with the second limiting part 5, so that the connection is reliable and the assembly and disassembly are convenient. In this embodiment, the second limiting member 5 is a connection nut.

Optionally, the clamping tool further comprises a spacer 6, and the connecting bolt 32 passes through the spacer 6 to connect with the second limiting member 5. The gasket 6 can prevent the second limiting part 5 from generating larger pressure on the first caliper body 1 or the second caliper body 2, and the service life of the clamping tool is prolonged. The spacer 6 also has a thickness for facilitating adjustment of the relative positions of the first caliper body 1 and the second caliper body 2 in the thickness direction.

Optionally, the rotating shaft 3 further includes a sleeve 31, the sleeve 31 is sleeved on the connecting bolt 32, and both the first caliper body 1 and the second caliper body 2 are hinged on the sleeve 31. The first caliper body 1 and the second caliper body 2 rotate on the sleeve 31 and do not contact with the connecting bolt 32, so that the abrasion of the threads on the connecting bolt 32 on the first caliper body 1 and the second caliper body 2 is avoided, and the service life of the clamping tool is prolonged. In the embodiment, the first limiting member 4 is disposed at one end of the sleeve 31, and is connected to the sleeve 31 to form a structure with a T-shaped axial cross section, and the connecting bolt 32 is a countersunk bolt, and the head of the connecting bolt is embedded in the first limiting member 4, so that the compactness and the aesthetic property of the clamping tool are improved. The sleeve 31 and the first limiting part 4 are integrally formed, so that the novel LED lamp is few in parts, convenient to disassemble and assemble, high in structural strength and not easy to damage.

Optionally, a first arc-shaped groove 111 is formed in the first clamping portion 11, a second arc-shaped groove 211 is formed in the second clamping portion 21, and the first operating portion 12 and the second operating portion 22 are operated to swing relative to each other, so that the first arc-shaped groove 111 and the second arc-shaped groove 211 can clamp or loosen the bolt to be fixed. The bolt to be fixed is clamped by the first arc-shaped groove 111 and the second arc-shaped groove 211 in an encircling mode, and clamping is stable.

Further, at least two first arc-shaped grooves 111 are provided, and the second clamping portion 21 is provided with second arc-shaped grooves 211 corresponding to the first arc-shaped grooves 111 one by one. A plurality of first arc wall 111 and the second arc wall 211 that corresponds can realize simultaneously that a plurality of stay bolts of treating carry out the centre gripping, have improved user's operating efficiency. In this embodiment, two first arc-shaped grooves 111 are provided along the extending direction of the first clamping portion 11, and two second arc-shaped grooves 211 corresponding to the first arc-shaped grooves 111 one by one are provided along the extending direction of the second clamping portion 21.

In this embodiment, the first caliper body 1 and the second caliper body 2 are all integrated into one piece structures, such as injection molding, sheet metal, and the like, and have high structural strength and are not easy to damage.

In this embodiment, the first caliper body 1 and the second caliper body 2 are made of plastic or rubber, have light weight, and have certain elasticity, so as to improve the operational convenience of the position-limiting protrusion 121 and the position-limiting groove 221.

In the clamping tool of the present embodiment, first, the first operating portion 12 and the second operating portion 22 are operated to swing relative to each other, so that the first clamping portion 11 and the second clamping portion 21 approach each other; then, the positioning projection 222 is fitted with the positioning groove 122; meanwhile, the limit protrusion 121 and the limit groove 221 are further snap-connected, so that the relative positions of the first operating part 12 and the second operating part 22 are fixed and abutted. At this time, the first clamping portion 11 abuts against the second clamping portion 21, and the first arc-shaped groove 111 and the second arc-shaped groove 211 clamp the bolt to be fixed together to prevent the bolt from moving. The limiting protrusion 121 and the limiting groove 221 are connected in a buckling mode, so that the operation of a user is convenient, and the fixing or loosening of the fixing bolt can be easily realized.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the utility model. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A gripping tool, comprising:

a rotating shaft (3);

the first clamp body (1) is hinged to the rotating shaft (3), and a first clamping part (11) and a first operating part (12) are arranged on the first clamp body (1);

the second clamp body (2) is hinged to the rotating shaft (3), and a second clamping part (21) and a second operating part (22) are arranged on the second clamp body (2);

the first operating part (12) and the second operating part (22) swing relatively, and the first clamping part (11) and the second clamping part (21) can be close to or far away from each other so as to clamp or loosen a bolt to be fixed; one of the first operation part (12) and the second operation part (22) is provided with a limiting protrusion (121), and the other one is provided with a limiting groove (221) which can be connected with the limiting protrusion (121) in a buckling manner.

2. The clamping tool of claim 1, wherein one of the first operating part (12) and the second operating part (22) is provided with a positioning groove (122), and the other is provided with a positioning projection (222) capable of being inserted into the positioning groove (122).

3. The holding tool according to claim 2, wherein one of the retaining protrusion (121) and the retaining groove (221) is provided in the positioning groove (122) and the other is provided on the positioning protrusion (222).

4. The clamping tool according to any one of claims 1 to 3, further comprising a first limiting member (4) and a second limiting member (5), wherein the first limiting member (4) and the second limiting member (5) are both disposed on the rotating shaft (3), the first limiting member (4) abuts against a side of the first caliper body (1) away from the second caliper body (2), and the second limiting member (5) abuts against a side of the second caliper body (2) away from the first caliper body (1).

5. The clamping tool according to claim 4, characterized in that the rotation shaft (3) comprises a connecting bolt (32), the second retaining member (5) being screwed onto the connecting bolt (32).

6. The clamping tool according to claim 5, characterized in that the rotation shaft (3) further comprises a sleeve (31), the sleeve (31) is sleeved on the connecting bolt (32), and the first caliper body (1) and the second caliper body (2) are both hinged on the sleeve (31).

7. The clamping tool according to any one of claims 1 to 3, wherein a first arc-shaped groove (111) is formed in the first clamping portion (11), a second arc-shaped groove (211) is formed in the second clamping portion (21), and the first operating portion (12) and the second operating portion (22) can be relatively swung to clamp or loosen the bolt to be fixed through the first arc-shaped groove (111) and the second arc-shaped groove (211).

8. The clamping tool according to claim 7, characterized in that there are at least two first arc-shaped grooves (111) and that there are second arc-shaped grooves (211) on the second clamping portion (21) in one-to-one correspondence with the first arc-shaped grooves (111).

9. A holding tool according to any of claims 1-3, wherein the stop protrusion (121) and/or the stop groove (221) is provided with a guiding surface.

10. A clamping tool according to any one of claims 1-3, characterized in that the first operating portion (12) and the second operating portion (22) each extend in a first direction, which first direction extends in a direction away from the plane formed by the first clamping portion (11) and the second clamping portion (21).