CN111843899A

CN111843899A - Wrench with limiter

Info

Publication number: CN111843899A
Application number: CN202010783768.6A
Authority: CN
Inventors: 张瀚; 文建鹏; 吴国梓; 何君如; 庄颖旋; 丁瑞蓉; 吴添权; 邱灿树; 蓝淑财; 陈泽涛
Original assignee: Guangdong Power Grid Co Ltd; Chaozhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Chaozhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2020-10-30

Abstract

The invention relates to the technical field of power equipment, and particularly discloses a wrench with a limiter, which is used for realizing the assembly and disassembly of a bolt and a nut and comprises: the lower end of the limiting device is provided with a first limiting groove for the nut to insert; the sliding sleeve assembly comprises a rotating sleeve rotatably connected with the upper end of the stopper, a sliding block positioned in the rotating sleeve and a sliding adjusting rod used for driving the sliding block to slide up and down; the bottom of the sliding block is provided with a second limiting groove for inserting the head of the bolt; the first limiting groove and the second limiting groove are coaxial; the rotary wrench is connected with the rotating sleeve and used for driving the sliding sleeve assembly to rotate around the axis of the first limiting groove relative to the limiting device. The invention provides a wrench with a limiter, which can solve the problem that the existing wrench can not assemble and disassemble a bolt and a nut by one hand.

Description

Wrench with limiter

Technical Field

The invention relates to the technical field of power equipment, in particular to a wrench with a limiter.

Background

When carrying out operation and maintenance work, the operation and maintenance personnel often need both hands and land to carry out the assembly and disassembly work of bolt and nut. For example, when the hardware fixed on the angle iron needs to be disassembled, in order to prevent the nut from rotating together with the bolt and causing the nut and the bolt to be unable to be separated, the operator needs to hold one wrench with one hand to fix the nut and then hold the other wrench with the other hand to reversely rotate the bolt so as to separate the bolt from the nut. When the operation is carried out on the ground, the bolt and the nut can be effectively separated by using the mode of combining the two hands, but when the operation is carried out in the air, the operation and maintenance personnel cannot hold fixed objects such as an iron tower or a ladder by using the hands, and the operation and maintenance personnel can fall from a high place by carelessness.

Therefore, it is necessary to improve the existing wrenches to solve the problem that the current wrenches cannot mount and dismount the bolt and the nut with one hand.

Disclosure of Invention

One object of the present invention is to provide a wrench with a position limiter, which can solve the problem that the existing wrench cannot assemble and disassemble the bolt and the nut with one hand.

In order to achieve the above object, the present invention provides a wrench with a stopper for assembling and disassembling a bolt and a nut, comprising:

the lower end of the limiting device is provided with a first limiting groove for the nut to insert;

the sliding sleeve assembly comprises a rotating sleeve rotatably connected with the upper end of the stopper, a sliding block positioned in the rotating sleeve and a sliding adjusting rod used for driving the sliding block to slide up and down; the bottom of the sliding block is provided with a second limiting groove for inserting the head of the bolt; the first limiting groove and the second limiting groove are coaxial;

the rotary wrench is connected with the rotating sleeve and used for driving the sliding sleeve assembly to rotate around the axis of the first limiting groove relative to the limiting device.

Preferably, the first limiting groove is a blind groove, and a rod penetrating hole for the bolt to penetrate through is formed in the bottom of the first limiting groove.

Preferably, the sliding adjusting rod comprises a vertical rod and a horizontal rod, the vertical rod vertically downwards is connected with the top of the rotating sleeve in a sliding mode and extends to the top of the sliding block, and the horizontal rod is horizontally fixed to the top of the vertical rod.

Preferably, the stopper comprises two vertical plates arranged in parallel, a lower transverse plate connected with the lower ends of the two vertical plates and an upper transverse plate connected with the upper ends of the two vertical plates; the first limiting groove is positioned at the top of the lower transverse plate, the upper transverse plate is provided with a through round hole for the rotating sleeve to insert and coaxial with the first limiting groove, and the hole wall of the through round hole is provided with an annular groove;

and an annular boss is arranged outside the rotating sleeve, and the annular boss is inserted into the annular groove and is rotationally connected with the annular groove.

Preferably, the outer side of the rotating sleeve comprises at least two straight planes for clamping the rotating wrench, and the two straight planes are parallel to each other.

Preferably, the outer contour of the rotating sleeve is hexagonal prism, and the rotating wrench is provided with a quincuncial hole for inserting the rotating sleeve.

Preferably, the sliding block has a hexagonal prism shape.

Preferably, the rotary wrench is a ratchet wrench for driving the sliding sleeve assembly to rotate in a single direction.

The invention has the beneficial effects that: the wrench with the limiter is characterized in that a nut is inserted into a first limiting groove, then a sliding adjusting rod is pushed downwards to enable the head of a bolt to be inserted into a second limiting groove, and then the wrench is rotated to assemble and disassemble the bolt and the nut. It should be noted that, because the rotary wrench and the sliding sleeve assembly do not rotate relatively, when the rotary wrench is rotated, the sliding sleeve assembly rotates relative to the stopper, that is, the second limiting groove rotates relative to the first limiting groove, so that the nut inserted into the first limiting groove and the bolt inserted into the second limiting groove rotate relatively, and the assembly and disassembly of the bolt and the nut are completed. It can be understood that the spanner with the limiter can solve the problem that the existing spanner cannot assemble and disassemble the bolt and the nut by one hand because the rotating spanner can be rotated by one hand, so that an operation and maintenance worker can assemble and disassemble the bolt and the nut by one hand.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a wrench with a stopper according to an embodiment.

In the figure:

1. a stopper; 101. a vertical plate; 102. a lower transverse plate; 1021. a first limit groove; 103. an upper transverse plate;

2. a sliding sleeve assembly; 201. rotating the sleeve; 2011. an annular boss; 202. a slider; 2021. a second limit groove; 203. adjusting a rod; 2031. a vertical rod; 2032. a cross bar;

3. rotating the wrench; 301. a sleeve; 302. a ratchet mechanism; 303. a handle.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions 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, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Referring to fig. 1, the present embodiment provides a wrench with a stopper for assembling and disassembling a bolt and a nut, which includes a stopper 1, a sliding sleeve assembly 2 and a rotary wrench 3.

The lower end of the limiter 1 is provided with a first limiting groove 1021 for the nut to insert. The sliding sleeve assembly 2 comprises a rotating sleeve 201 rotatably connected with the upper end of the stopper 1, a sliding block 202 positioned in the rotating sleeve 201, and a sliding adjusting rod 203 for driving the sliding block 202 to slide up and down; the bottom of the sliding block 202 is provided with a second limit groove 2021 for the head of the bolt to insert; the first and second

limiting grooves

1021, 2021 are coaxial. The rotary wrench 3 is connected with the rotating sleeve 201 and used for driving the sliding sleeve assembly 2 to rotate around the axis of the first limiting groove 1021 relative to the limiter 1.

It can be understood that to achieve the assembly and disassembly of the bolt and the nut, the key is to achieve the relative rotation of the bolt and the nut.

The wrench with the limiter provided by the invention can realize the assembly and disassembly of the bolt and the nut by firstly inserting the nut into the first limiting groove 1021, then pushing the sliding adjusting rod 203 downwards to insert the head of the bolt into the second limiting groove 2021, and then rotating the rotary wrench 3. It should be noted that, since the rotary wrench 3 and the sliding sleeve assembly 2 do not rotate relatively, when the rotary wrench 3 is rotated, the sliding sleeve assembly 2 rotates relative to the stopper 1, that is, the second limiting groove 2021 rotates relative to the first limiting groove 1021, so that the nut inserted into the first limiting groove 1021 and the bolt inserted into the second limiting groove 2021 rotate relatively, thereby completing the assembly and disassembly of the bolt and the nut. It can be understood that, because the rotating wrench 3 can be rotated by one hand, the operation and maintenance personnel can assemble and disassemble the bolt and the nut by one hand, and the wrench with the limiter provided by the invention can solve the problem that the existing wrench can not assemble and disassemble the bolt and the nut by one hand.

In this embodiment, the first limiting groove 1021 is a blind groove, and a rod through hole for the bolt to pass through is formed at the bottom of the blind groove.

It can be understood that when the rotary wrench 3 is rotated in the forward direction, the bolt and the nut are close to each other and gradually separate from the corresponding limit grooves, the part of the bolt which exceeds the falling curtain passes through the rod penetrating hole and extends downwards to avoid interference of the limiter 1 on the descending of the bolt, when the bolt and the nut are about to separate from the limit grooves, the sliding adjusting rod 203 slides downwards to enable the two limit grooves to clamp the bolt and the nut again, and the bolt can be screwed into the nut after repeated reciprocating; when the rotating wrench 3 is rotated reversely, the bolt and the nut are far away from each other, and the nut is blocked by the first limiting groove 1021 and cannot move back down, so that the bolt can push the sliding adjusting rod 203 to slide upwards, and the bolt can be separated from the nut by continuously rotating the rotating wrench 3.

In this embodiment, the sliding adjustment rod 203 includes a vertical rod 2031 and a horizontal rod 2032, the vertical rod 2031 is vertically downward connected to the top of the rotating sleeve 201 in a sliding manner and extends to the top of the sliding block 202, and the horizontal rod 2032 is horizontally fixed to the top of the vertical rod 2031.

It can be understood that the cross bar 2032 is used as a force application bar, and applies force to the vertical bar 2031 through the lever principle to drive the vertical bar 2031 to rotate, so as to save labor.

Preferably, the stopper 1 comprises two vertical plates 101 arranged in parallel, a lower transverse plate 102 connecting the lower ends of the two vertical plates 101, and an upper transverse plate 103 connecting the upper ends of the two vertical plates 101; the first limiting groove 1021 is located at the top of the lower transverse plate 102, the upper transverse plate 103 is provided with a through round hole for the rotating sleeve 201 to insert into and be coaxial with the first limiting groove 1021, and the hole wall of the through round hole is provided with an annular groove. The outside of rotating sleeve 201 is equipped with cyclic annular boss 2011, cyclic annular boss 2011 inserts in the annular groove and with annular groove swivelling joint.

Specifically, cyclic annular boss 2011 and annular groove can realize rotating sleeve 201 and be connected with stopper 1's rotation, can prevent again that rotating sleeve 201 and stopper 1 from taking place the displacement of vertical direction.

Optionally, the outer side of the rotating sleeve 201 includes at least two straight planes for clamping the rotating wrench 3, and the two straight planes are parallel to each other. Specifically, when two straight planes are disposed on the outer side of the rotating sleeve 201, the rotating wrench 3 can be detachably connected to the rotating sleeve 201, for example, the rotating wrench 3 can be a general solid wrench or an adjustable wrench, and such a design is beneficial to the sliding sleeve assembly 2 to be used with different rotating wrenches 3. Further, the outer contour of the rotating sleeve 201 is hexagonal prism, and the rotary wrench 3 is provided with a quincunx hole for inserting the rotating sleeve 201. Specifically, when the rotating sleeve 201 is a hexagonal prism, the rotary wrench 3 may be a ring wrench.

Preferably, the sliding block 202 has a hexagonal prism shape.

Specifically, the sliding block 202 has a hexagonal prism shape to prevent the sliding block 202 from rotating relative to the rotating sleeve 201.

Preferably, the rotating wrench 3 is a ratchet wrench for driving the sliding sleeve assembly 2 to rotate in one direction.

The ratchet wrench can accelerate the assembly and disassembly speed and improve the working efficiency.

It will be appreciated that a ratchet wrench generally comprises a socket 301 for gripping the rotating sleeve 201, a ratchet mechanism 302 and a handle 303 which is connected to the socket 301 for unidirectional rotation by the ratchet mechanism 302. Specifically, the specific structure of the ratchet wrench belongs to the prior art, which is not the focus of the present embodiment, and therefore, the detailed description thereof is omitted.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A wrench with a limiter is used for realizing the assembly and disassembly of a bolt and a nut, and is characterized by comprising:

2. The wrench with the stopper according to claim 1, wherein the first stopper groove is a blind groove, and a through-hole for the bolt to pass through is formed at the bottom of the blind groove.

3. The wrench with the stopper as claimed in claim 1, wherein the sliding adjusting lever includes a vertical rod and a horizontal rod, the vertical rod is vertically and downwardly slidably connected with the top of the rotating sleeve and extends to the top of the sliding block, and the horizontal rod is horizontally fixed on the top of the vertical rod.

4. The wrench with the stopper as claimed in claim 1, wherein the stopper comprises two parallel vertical plates, a lower horizontal plate connecting the lower ends of the two vertical plates, and an upper horizontal plate connecting the upper ends of the two vertical plates; the first limiting groove is positioned at the top of the lower transverse plate, the upper transverse plate is provided with a through round hole for the rotating sleeve to insert and coaxial with the first limiting groove, and the hole wall of the through round hole is provided with an annular groove;

5. The wrench with the limiter of claim 1, wherein the outer side of the rotating sleeve includes at least two straight planes for the rotating wrench to clamp, the two straight planes being parallel to each other.

6. The wrench with the stopper according to claim 5, wherein the outer contour of the rotating sleeve is hexagonal prism-shaped, and the rotary wrench is provided with a spline hole into which the rotating sleeve is inserted.

7. The wrench with the limiter of claim 6, wherein the sliding block is hexagonal prism-shaped.

8. The wrench with the limiter of claim 1, wherein the rotary wrench is a ratchet wrench for driving the sliding sleeve assembly to rotate in one direction.