CN210998415U

CN210998415U - Combined spanner

Info

Publication number: CN210998415U
Application number: CN201921074529.2U
Authority: CN
Inventors: 赵健; 黄建新; 刘富刚; 汪桂强; 刘钦强; 饶军; 邵琳轩; 许瑶
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-07-14
Anticipated expiration: 2029-07-10

Abstract

The utility model provides a combination wrench, include: the first wrench comprises a first operating part and a first handle connected with the first operating part, the first operating part is provided with a first limiting hole and a first opening communicated with the first limiting hole, and the inner wall of the first limiting hole is matched with the outer wall of a workpiece to be twisted; the second wrench comprises a second operating part and a second handle connected with the second operating part, the second operating part is provided with a second limiting hole and a second opening communicated with the second limiting hole, and the inner wall of the second limiting hole is used for being matched with the outer wall of the workpiece; and the connecting structure is arranged on the first operating part and/or the second operating part and is used for detachably connecting the first operating part and the second operating part, and the first handle and the second handle form an included angle under the condition that the first operating part and the second operating part are connected. Through this technical scheme, can solve standard spanner width great, can not twist the problem of moving the work piece in narrow environment.

Description

Combined spanner

Technical Field

The utility model relates to a mechanical tool technical field particularly, relates to a combination wrench.

Background

In a water storage tank in a certain steam supply station, a stop valve is arranged, wherein a sealing packing gland is of an external hexagonal structure at the upper part of an external thread at the position where a valve rod is inserted into a valve body. Two stands of valve support hand wheel are located the both sides of gland, and the annular space between two stands and the gland is very narrow and small for on the hexagonal gland can't be gone into to the unable card of current standard spanner, when the seepage appears in the wearing and tearing of the well core rod gland of stop valve, can not the leakage fault of maintenance processing this kind of stop valve. For a standard wrench, the width cannot be set too small in order to be able to carry sufficient torque, so that a standard wrench cannot be used in such a narrow environment.

The problem of the standard wrench not being operable is also present for other situations where the workpiece is tightened or removed in a confined environment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a combination wrench to the standard wrench width who solves among the prior art is great, can not screw up or dismantle the problem of work piece in constrictive environment.

In order to solve the above problem, the utility model provides a combination wrench, include: the first wrench comprises a first operating part and a first handle connected with the first operating part, the first operating part is provided with a first limiting hole and a first opening communicated with the first limiting hole, and the inner wall of the first limiting hole is matched with the outer wall of a workpiece to be twisted; the second wrench comprises a second operating part and a second handle connected with the second operating part, the second operating part is provided with a second limiting hole and a second opening communicated with the second limiting hole, and the inner wall of the second limiting hole is used for being matched with the outer wall of the workpiece; and the connecting structure is arranged on the first operating part and/or the second operating part and is used for detachably connecting the first operating part and the second operating part, and the first handle and the second handle form an included angle under the condition that the first operating part and the second operating part are connected.

Furthermore, the first limiting hole is of a regular hexagon structure and is provided with a first inner wall, a second inner wall, a third inner wall, a fourth inner wall, a fifth inner wall and a sixth inner wall which are sequentially arranged, an included angle is formed between every two adjacent inner walls of the first limiting hole, and a first opening is formed between the first inner wall and the second inner wall; the second limiting hole is of a regular hexagon structure and is provided with a seventh inner wall, an eighth inner wall, a ninth inner wall, a tenth inner wall, an eleventh inner wall and a twelfth inner wall which are sequentially arranged, an included angle is formed between every two adjacent inner walls of the second limiting hole, and a second opening is formed between the seventh inner wall and the twelfth inner wall.

Furthermore, the outer contour of the first operating part is of a circular structure, the outer contour of the second operating part is of a circular structure, and the outer diameter size of the first operating part is equal to the outer diameter size of the second operating part.

Further, in the connected state of the first and second operating parts, the extending direction of the first handle is the same as the extending direction of the second handle.

Furthermore, a first central line of the first opening passes through the midpoint of the first limiting hole, and an included angle is formed between the first central line and the extending direction of the first handle; a second central line of the second opening passes through the midpoint of the second limiting hole, and an included angle is formed between the second central line and the extending direction of the second handle.

Further, the included angle between the first central line and the extending direction of the first handle is 12-18 degrees; the angle between the second centre line and the direction of extension of the second handle is between 12 ° and 18 °.

Further, the first handle comprises a first rod section and a second rod section which are connected with each other, wherein the second rod section is connected with the first operating part, and the width of the second rod section is smaller than that of the first rod section; the second handle comprises a third rod section and a fourth rod section which are connected with each other, wherein the fourth rod section is connected with the second operation part, and the width of the fourth rod section is smaller than that of the third rod section.

Furthermore, the first wrench is of an integrated structure, the second wrench is of an integrated structure, and the first handle, the second handle, the first operating portion and the second operating portion are the same in thickness.

Further, a connection structure is provided on the first operation part and the second operation part, the connection structure including: a connecting member provided on one of the first and second operating portions; and a connection hole provided on the other of the first and second operation parts, into which or from which the connection member can be inserted, the first and second operation parts being connected in a state where the connection member is inserted into the connection hole.

Furthermore, the connecting pieces are of a columnar structure, the connecting pieces and the connecting holes are multiple, and the connecting pieces and the connecting holes are arranged in a one-to-one correspondence mode.

Use the technical scheme of the utility model, a combination wrench is provided, be provided with first spanner in combination wrench, second spanner and connection structure, wherein, the first opening of first spanner is used for dodging spare part so that first spacing pot head is established at the outer wall of work piece, the second opening of second spanner is used for dodging spare part so that the spacing pot head of second is established at the outer wall of work piece, when using, first operation portion and second operation portion all overlap on the work piece, and connect first operation portion and second operation portion through connection structure, first operation portion and second operation portion fold like this, pull first handle and second handle respectively with exerting the moment of torsion jointly. Because this combination spanner includes two wrenches of mutually supporting, can still guarantee that the combination spanner is whole to have sufficient moment of torsion under the less condition that sets up the width direction's of the operating portion of spanner size like this to can solve the width of current standard spanner great, can not be with the less problem that the width set up. Therefore, the width of the first wrench and the width of the second wrench in the scheme can be set to be smaller than the width of the corresponding standard wrench, so that the first wrench and the second wrench can extend into a narrow environment to perform the operation of screwing or loosening a workpiece, and the use requirement of the narrow environment is met.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a combination wrench according to an embodiment of the present invention;

FIG. 2 shows a schematic view of the combination wrench of FIG. 1 in use;

FIG. 3 shows a schematic view of the first wrench of FIG. 1;

fig. 4 shows a schematic view of the second wrench of fig. 1.

Wherein the figures include the following reference numerals:

10. a first wrench; 11. a first operation section; 111. a first limit hole; 112. a first opening; 12. a first handle; 121. a first pole segment; 122. a second pole segment; 20. a second wrench; 21. a second operation section; 211. a second limiting hole; 212. a second opening; 22. a second handle; 221. a third pole segment; 222. a fourth pole segment; 30. a connecting structure; 31. a connecting member; 32. and connecting the holes.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 4, an embodiment of the present invention provides a combination wrench, including: the first wrench 10 comprises a first operating part 11 and a first handle 12 connected with the first operating part 11, the first operating part 11 is provided with a first limiting hole 111 and a first opening 112 communicated with the first limiting hole 111, and the inner wall of the first limiting hole 111 is used for being matched with the outer wall of a workpiece to be screwed; the second wrench 20, the second wrench 20 includes a second operating portion 21 and a second handle 22 connected with the second operating portion 21, the second operating portion 21 has a second limiting hole 211 and a second opening 212 communicated with the second limiting hole 211, and the inner wall of the second limiting hole 211 is used for matching with the outer wall of the workpiece; and the connecting structure 30 is arranged on the first operating part 11 and/or the second operating part 21, the connecting structure 30 is used for detachably connecting the first operating part 11 and the second operating part 21, and the first handle 12 and the second handle 22 have an included angle when the first operating part 11 and the second operating part 21 are connected.

Use the technical scheme of the utility model, a combination wrench is provided, be provided with first spanner 10 in combination wrench, second spanner 20 and connection structure 30, wherein, first opening 112 of first spanner 10 is used for dodging spare part so that first spacing hole 111 cover is established at the outer wall of work piece, second spanner 20's second opening 212 is used for dodging spare part so that the spacing hole 211 cover of second is established at the outer wall of work piece, when using, first operation portion 11 and second operation portion 21 all overlap on the work piece, and connect first operation portion 11 and second operation portion 21 through connection structure 30, first operation portion 11 and second operation portion 21 stack like this, pull first handle 12 and second handle 22 respectively with exerting the moment of torsion jointly, screw up or not hard up the work piece operation. Because this combination spanner includes two wrenches of mutually supporting, can still guarantee that the combination spanner is whole to have sufficient moment of torsion under the less condition that sets up the width direction's of the operating portion of spanner size like this to can solve the width of current standard spanner great, can not be with the less problem that the width set up. Therefore, the width of the first wrench and the width of the second wrench in the scheme can be set to be smaller than the width of the corresponding standard wrench, so that the first wrench and the second wrench can extend into a narrow environment to perform the operation of screwing or loosening a workpiece, and the use requirement of the narrow environment is met.

For example, the combination wrench can be used to tighten the gland on the shut-off valve mentioned in the background art, and although there are two pillars on both sides of the gland, the width between the two pillars is smaller, since the first operating part 11 and the second operating part 21 in the combination wrench have a smaller dimension in the width direction than a standard wrench, the gland can be inserted between the two pillars and fit over the gland, thereby tightening the gland to prevent the position of the packing from leaking.

In this embodiment, the first limiting hole 111 is a regular hexagon structure, the first limiting hole 111 has a first inner wall, a second inner wall, a third inner wall, a fourth inner wall, a fifth inner wall and a sixth inner wall which are sequentially arranged, an included angle is formed between two adjacent inner walls of the first limiting hole 111, wherein a first opening 112 is formed between the first inner wall and the second inner wall; the second limiting hole 211 is of a regular hexagon structure, the second limiting hole 211 is provided with a seventh inner wall, an eighth inner wall, a ninth inner wall, a tenth inner wall, an eleventh inner wall and a twelfth inner wall which are sequentially arranged, an included angle is formed between every two adjacent inner walls of the second limiting hole 211, and a second opening 212 is formed between the seventh inner wall and the twelfth inner wall. Through the arrangement, compared with the existing open-end wrench, the circumferential contact angle between the inner wall of the limiting hole and the workpiece can be increased, so that the connection reliability of the first operating part 11 and the second operating part 21 with the workpiece is improved, the bearing capacity is improved, and the first operating part 11 and the second operating part 21 are prevented from deforming. Therefore, through the arrangement, the bearing capacity and the deformation resistance of the combined wrench can be improved.

In the present embodiment, the outer contour of the first operating portion 11 is circular, the outer contour of the second operating portion 21 is circular, and the outer diameter of the first operating portion 11 is equal to the outer diameter of the second operating portion 21. With the above arrangement, the overall size of the first operating portion 11 and the second operating portion 21 can be reduced, and interference with other parts is not easily caused during rotation, thereby facilitating use in a narrow space. Moreover, the above arrangement facilitates the overlapping engagement of the first operating portion 11 and the second operating portion 21.

In the present embodiment, in the state where the first operating part 11 and the second operating part 21 are connected, the extending direction of the first handle 12 is the same as the extending direction of the second handle 22. This facilitates co-rotation of first handle 12 and second handle 22 on either side. The combination wrench can be operated by one or two persons.

In this embodiment, a first central line of the first opening 112 passes through a midpoint of the first limiting hole 111, and an included angle is formed between the first central line and the extending direction of the first handle 12; the second central line of the second opening 212 passes through the midpoint of the second limiting hole 211, and an included angle is formed between the second central line and the extending direction of the second handle 22. Therefore, under the condition that parts are blocked in the rotating direction, the distance or the angle between the parts and the blocked parts can be increased, so that the combined wrench can rotate for one time by a larger angle to reduce the times of sleeving the workpiece and rotating, and the operating efficiency is improved.

Specifically, as shown in fig. 3 and 4, the angle between the first centerline and the direction of extension of first handle 12 is between 12 ° and 18 °; the angle between the second centre line and the direction of extension of the second handle 22 is between 12 deg. and 18 deg.. Through the arrangement, the combined wrench can rotate by a large angle when rotating once. For example, the angle between the first centerline and the direction of extension of first handle 12 may be set at 15 °; the angle between the second centre line and the direction of extension of the second handle 22 may be set to 15 deg..

As shown in fig. 1 to 4, the first handle 12 includes a first rod segment 121 and a second rod segment 122 connected to each other, wherein the second rod segment 122 is connected to the first operating part 11, and the width of the second rod segment 122 is smaller than that of the first rod segment 121; the second handle 22 includes a third pole segment 221 and a fourth pole segment 222 connected to each other, wherein the fourth pole segment 222 is connected to the second manipulation part 21, and the width of the fourth pole segment 222 is smaller than that of the third pole segment 221. With the above arrangement, the width of the region of the first handle 12 close to the first operating portion 11 can be made narrow, so that the rotation angle of the first handle 12 can be increased in a narrow environment, and the rotation is stopped when the second rod section 122 comes into contact with a blocked component. Accordingly, the rotation angle of the second handle 22 can be increased in a narrow environment. Therefore, the distance or angle between the combined wrench and the blocked part can be increased through the arrangement, so that the combined wrench can rotate for one time by a larger angle to reduce the times of sleeving the workpiece and rotating, and the operation efficiency is improved.

In the present embodiment, the first wrench 10 and the second wrench 20 are integrally formed, and the first handle 12, the second handle 22, the first operating portion 11, and the second operating portion 21 have the same thickness. The structural strength of the first and

second wrenches

10 and 20 can be improved by the above arrangement, and the material selection and manufacture of the first and

second wrenches

10 and 20 can be facilitated. The first wrench 10 and the second wrench 20 are made of tool steel.

In the present embodiment, the connection structure 30 is provided on the first and

second operation parts

11 and 21, and the connection structure 30 includes: a link 31 provided on one of the first and

second operating portions

11 and 21; and a connection hole 32 provided on the other of the first operating part 11 and the second operating part 21, the link 31 being capable of being inserted into the connection hole 32 or separated from the connection hole 32, the first operating part 11 and the second operating part 21 being connected with the link 31 inserted into the connection hole 32. In use, the connecting member 31 is inserted into the connecting hole 32, so that the first operating portion 11 and the second operating portion 21 can be stacked and connected up and down, and the operation is convenient, so that the first operating portion 11 and the second operating portion 21 can jointly apply torque to a workpiece.

As shown in fig. 1, the connecting member 31 has a columnar structure, the connecting member 31 and the connecting hole 32 are both provided in plurality, and the connecting members 31 and the connecting holes 32 are arranged in one-to-one correspondence. Through the arrangement, the connection reliability of the first operation part 11 and the second operation part 21 can be improved, the bearing capacity of the combination wrench can be improved, and deformation can be prevented.

The combined wrench can solve the problem of leakage of the sealing gland part of the stop valve, prolong the service life of the valves, improve the management quality, and is not only suitable for the stop valve configured in an oil field steam supply station, but also suitable for other similar occasions.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A combination wrench, comprising:

the first wrench (10) comprises a first operating part (11) and a first handle (12) connected with the first operating part (11), the first operating part (11) is provided with a first limiting hole (111) and a first opening (112) communicated with the first limiting hole (111), and the inner wall of the first limiting hole (111) is used for being matched with the outer wall of a workpiece to be screwed;

the second wrench (20) comprises a second operating part (21) and a second handle (22) connected with the second operating part (21), the second operating part (21) is provided with a second limiting hole (211) and a second opening (212) communicated with the second limiting hole (211), and the inner wall of the second limiting hole (211) is used for being matched with the outer wall of the workpiece;

a connecting structure (30) arranged on the first operating part (11) and/or the second operating part (21), wherein the connecting structure (30) is used for detachably connecting the first operating part (11) and the second operating part (21), and an included angle is formed between the first handle (12) and the second handle (22) when the first operating part (11) and the second operating part (21) are connected.

2. The combination wrench of claim 1,

the first limiting hole (111) is of a regular hexagon structure, the first limiting hole (111) is provided with a first inner wall, a second inner wall, a third inner wall, a fourth inner wall, a fifth inner wall and a sixth inner wall which are sequentially arranged, an included angle is formed between two adjacent inner walls of the first limiting hole (111), and the first opening (112) is formed between the first inner wall and the second inner wall;

the second limiting hole (211) is of a regular hexagon structure, the second limiting hole (211) is provided with a seventh inner wall, an eighth inner wall, a ninth inner wall, a tenth inner wall, an eleventh inner wall and a twelfth inner wall which are sequentially arranged, an included angle is formed between every two adjacent inner walls of the second limiting hole (211), and the second opening (212) is formed between the seventh inner wall and the twelfth inner wall.

3. Combination wrench according to claim 1, characterized in that the outer contour of the first operating part (11) is of circular configuration and the outer contour of the second operating part (21) is of circular configuration, the outer diameter of the first operating part (11) being of equal size to the outer diameter of the second operating part (21).

4. Combination wrench according to claim 1, characterized in that the first handle (12) extends in the same direction as the second handle (22) in the connected situation of the first operating part (11) and the second operating part (21).

5. The combination wrench of claim 1,

a first central line of the first opening (112) passes through the midpoint of the first limiting hole (111), and an included angle is formed between the first central line and the extending direction of the first handle (12);

and a second central line of the second opening (212) passes through the midpoint of the second limiting hole (211), and an included angle is formed between the second central line and the extending direction of the second handle (22).

6. The combination wrench of claim 5,

the angle between the first centre line and the extension direction of the first handle (12) is between 12 DEG and 18 DEG;

the angle between the second centre line and the direction of extension of the second handle (22) is between 12 ° and 18 °.

7. The combination wrench of claim 1,

the first handle (12) comprises a first rod section (121) and a second rod section (122) which are connected with each other, wherein the second rod section (122) is connected with the first operating part (11), and the width of the second rod section (122) is smaller than that of the first rod section (121);

the second handle (22) comprises a third rod segment (221) and a fourth rod segment (222) which are connected with each other, wherein the fourth rod segment (222) is connected with the second operating part (21), and the width of the fourth rod segment (222) is smaller than that of the third rod segment (221).

8. Combination wrench according to claim 1, characterized in that the first wrench (10) and the second wrench (20) are of one-piece construction, and that the first handle (12), the second handle (22), the first operating part (11) and the second operating part (21) are of the same thickness.

9. A combination wrench as claimed in claim 1, wherein the connecting structure (30) is provided on the first operating part (11) and the second operating part (21), the connecting structure (30) comprising:

a connector (31) provided on one of the first operation portion (11) and the second operation portion (21);

a connection hole (32) provided on the other of the first operation part (11) and the second operation part (21), the connection member (31) being insertable into the connection hole (32) or separable from the connection hole (32), the first operation part (11) and the second operation part (21) being connected in a state where the connection member (31) is inserted into the connection hole (32).

10. The combination wrench as claimed in claim 9, wherein the connecting member (31) has a cylindrical structure, the connecting member (31) and the connecting hole (32) are provided in plural numbers, and the connecting members (31) and the connecting holes (32) are provided in one-to-one correspondence.