CN112959249A

CN112959249A - Quick adjustable open spanner

Info

Publication number: CN112959249A
Application number: CN202110377416.5A
Authority: CN
Inventors: 邹家平
Original assignee: Jiangsu Sainty International Group Jiangdu Tool Co ltd
Current assignee: Jiangsu Sainty International Group Jiangdu Tool Co ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-06-15

Abstract

A quick adjustable open spanner. Relates to the technical field of hand tools, in particular to a quick adjustable open-end wrench. Provides a quick adjustable open spanner with compact structure, simple and convenient rotation and low manufacturing cost. A fast adjustable open spanner comprises an adjustable spanner opening, a fixed spanner opening, a spanner handle and a tension spring; the movable jaw is arranged on the fixed jaw in a sliding mode, and the top of the movable jaw and the fixed jaw form a clamping opening for clamping a workpiece; the bottom of the movable spanner opening is provided with a plurality of uniformly distributed first teeth; the end part of the trigger is provided with an arc-shaped end, and the arc-shaped end is provided with a plurality of teeth II meshed with the teeth I; and a hinge hole for being hinged with the wrench handle is formed in the position, close to the bottom, of the fixed wrench opening. The invention has the characteristics of compact structure, simple and convenient rotation, low manufacturing cost and the like.

Description

Quick adjustable open spanner

Technical Field

The invention relates to the technical field of hand tools, in particular to a quick adjustable open-end wrench.

Background

The wrench is a common mounting and dismounting tool, and is a manual tool for screwing bolts, screws, nuts and other screw threads to tightly hold open or trepanning fasteners of the bolts or nuts by utilizing the lever principle.

The wrenches are basically divided into two types, a dead wrench and an adjustable wrench. A dead wrench refers to a wrench that already has fixed numbers written on, usually with a fixed size opening at one or both ends for turning a nut or bolt of a certain size. The opening width of the adjustable wrench can be adjusted within a certain size range, and bolts or nuts with different specifications can be screwed. The structure of the spanner is characterized in that a fixed jaw is made into a flat clamp recess with thin teeth; one end of the movable jaw is made into a flat jaw; the other end is made into a concave jaw with fine teeth; the worm is pressed downwards, the movable jaw can be quickly taken down, and the position of the jaw is changed.

The existing adjustable spanner mainly has a single thread structure and a double thread structure. The number of threads of the turbine is one, which is generally referred to as a single thread, and the number of threads of the turbine is two, which is generally referred to as a double thread configuration. When the device is installed and used in daily life, the device needs to be separated from a nut or a bolt head in advance during rotation, then the device is sleeved in the device again after rotation, and the operation is extremely unchanged. When aiming at nuts or bolt heads of different specifications, one hand is required to extend into the turbine end for rotary adjustment.

With the progress of the technology, the reversing ratchet wrench enters the life of people. When the reversing ratchet wrench is operated by stretching into a narrow space, fingers are difficult to stretch into the narrow space to stir the reversing button. And the ratchet reversing wrench has higher processing cost.

Disclosure of Invention

Aiming at the problems, the invention provides the quick adjustable open end wrench which has compact structure, simple and convenient rotation and low manufacturing cost.

The technical scheme of the invention is as follows: a fast adjustable open spanner comprises an adjustable spanner opening, a fixed spanner opening, a spanner handle and a tension spring;

the movable jaw is arranged on the fixed jaw in a sliding mode, and the top of the movable jaw and the fixed jaw form a clamping opening for clamping a workpiece;

the bottom of the movable spanner opening is provided with a plurality of uniformly distributed first teeth;

the end part of the trigger is provided with an arc-shaped end, and the arc-shaped end is provided with a plurality of teeth II meshed with the teeth I;

a hinge hole for being hinged with the wrench handle is formed in the position, close to the bottom, of the fixed wrench opening;

the tension spring is arranged between the movable wrench opening and the fixed wrench opening, one end of the tension spring is connected with the movable wrench opening, and the other end of the tension spring is connected with the fixed wrench opening.

The bottom of the movable wrench opening is a plane, and a plurality of teeth are uniformly distributed and fixedly arranged on the plane.

The movable spanner opening is provided with a right clamping part; the fixed jaw is provided with a left clamping part; and a clamping opening is formed between the left side clamping part and the right side clamping part.

The right side clamping part and/or the left side clamping part are/is provided with a plurality of uniformly distributed convex teeth.

The fixed spanner opening is provided with a connecting boss extending along the width direction;

the movable spanner opening is provided with a socket slot matched with the connecting boss;

the movable spanner opening is transversely arranged on the fixed spanner opening in a sliding mode.

The section of the connecting boss is large at the top and small at the bottom.

The fixed spanner opening is hinged with the spanner handle through a hinge column.

The fixed spanner opening is provided with a long groove matched with the tension spring;

the tension spring is positioned in the long groove.

The tension spring is connected to the fixed spanner opening through a first pin shaft;

a fixed sleeve hole matched with the first pin shaft is formed in the fixed spanner opening;

the fixed sleeve hole is communicated with the long groove.

The tension spring is connected to the movable spanner opening through a second pin shaft;

and the movable wrench opening is provided with an inserting hole matched with the second pin shaft.

The invention comprises a movable jaw, a fixed jaw, a trigger and a tension spring; the movable jaw is arranged on the fixed jaw in a sliding manner, and the top of the movable jaw and the fixed jaw form a clamping opening for clamping a workpiece; the bottom of the movable spanner opening is provided with a plurality of uniformly distributed first teeth; the end part of the trigger is provided with an arc-shaped end, and the arc-shaped end is provided with a plurality of teeth II meshed with the teeth I; when the wrench is in operation, the wrench handle is held by hand, the wrench handle rotates anticlockwise, and the movable wrench opening and the fixed wrench opening clamp the nut and then the nut is screwed through meshing transmission of the first tooth and the second tooth. When the bolt is pulled and screwed, the wrench needs to return to a certain angle, at the moment, the wrench does not need to withdraw from the nut, the wrench is directly rotated in the opposite screwing direction, the movable wrench opening overcomes the tension of the tension spring to move in the opposite direction through the meshing transmission of the first tooth and the second tooth, and after the wrench rotates for 60 degrees around the nut, the movable wrench opening and the fixed wrench opening clamp the other two opposite sides of the bolt due to the acting force of the tension spring, and then the wrench can be rotated counterclockwise again to screw the nut. The invention has the characteristics of compact structure, simple and convenient rotation, low manufacturing cost and the like.

Drawings

Figure 1 is a schematic view of the present invention in a split perspective configuration,

figure 2 is a schematic view of the assembled three-dimensional structure of the present invention,

figure 3 is a schematic view of the assembled three-dimensional structure of the present invention,

figure 4 is a third schematic assembled perspective view of the present invention,

figure 5 is a fourth schematic assembled perspective view of the present invention,

FIG. 6 is a fifth perspective view of the present invention;

in the figure, 1 is a movable wrench opening, 1-1 is an insertion hole, 2 is a wrench handle, 3 is a first pin shaft, 4 is a tension spring, 5 is a second pin shaft, 6 is a fixed wrench opening, 6-1 is an elongated slot, 6-2 is a fixed sleeve hole, 7 is a hinge column, and 8 is a nut.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between 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.

As shown in fig. 1-6; a fast adjustable open spanner comprises an adjustable spanner opening 1, a fixed spanner opening 6, a spanner handle 2 and a tension spring 4;

the movable spanner opening 1 is arranged on the fixed spanner opening 6 in a sliding mode, and the top of the movable spanner opening and the fixed spanner opening 6 form a clamping opening used for clamping a workpiece; the movable jaw 1 can move left and right relative to the fixed jaw 6;

a plurality of uniformly distributed first teeth are arranged at the bottom of the movable spanner opening 1 (in the present case, the top and the bottom of the movable spanner opening respectively take the direction of fig. 3 as the reference direction);

an arc-shaped end is arranged at the end part of the trigger 2, and a plurality of teeth II meshed with the teeth I are arranged on the arc-shaped end;

a hinge hole for being hinged with the trigger 2 is formed in the position, close to the bottom, of the fixed wrench opening 6; namely, the fixed spanner opening 6 is hinged with the spanner 2;

the tension spring 4 is arranged between the movable wrench opening 1 and the fixed wrench opening 6, one end of the tension spring is connected with the movable wrench opening 1, and the other end of the tension spring is connected with the fixed wrench opening 6.

The application method of the scheme is as follows: when the wrench is in operation, the wrench handle 2 is held by hand, as shown in fig. 2-3 (the direction of an arc arrow in the figure is the wrenching direction), the wrench handle rotates anticlockwise, the movable wrench opening 1 moves in the direction of a straight arrow in fig. 2-3 through the meshing transmission of the first tooth and the second tooth, so that the nut 8 is clamped by the movable wrench opening 1 and the fixed wrench opening 6, and then the nut 8 is screwed.

When the bolt is pulled and screwed, the wrench needs to return to a certain angle, at the moment, the wrench does not need to be withdrawn from the nut, the wrench is directly rotated to the opposite direction of screwing, as shown in the direction of an arc arrow in fig. 4-5, the movable wrench opening 1 overcomes the tension of the tension spring to move in the opposite direction through the meshing transmission of the first tooth and the second tooth, as shown in the direction of a straight arrow in fig. 4-5; after the spanner rotates 60 degrees around the nut, due to the acting force of the tension spring, the other two opposite sides of the bolt are clamped by the movable spanner opening 1 and the fixed spanner opening 6, and the spanner can be rotated counterclockwise again to tighten the nut.

When the opening size of the wrench is adjusted, the wrench is not only quick but also quick in direction, and only the wrench handle 2 needs to be held by hand and the fixed wrench opening 6 needs to be slightly pushed, so that the distance H between the movable wrench opening 1 and the fixed wrench opening 6 is increased, as shown in FIG. 6; at this time, the nut is inserted into the opening of the wrench, and the bolt is clamped by the movable wrench opening 1 and the fixed wrench opening 6 under the elastic action of the tension spring after the pushing force is removed.

The bottom of the movable wrench opening 1 is a plane, and a plurality of first teeth are uniformly distributed and fixedly arranged on the plane.

The movable spanner opening 1 is provided with a right clamping part; the fixed jaw 6 is provided with a left clamping part; and a clamping opening is formed between the left side clamping part and the right side clamping part.

Further preferably, as shown in fig. 1, the side surface of the left clamping portion 6 facing the right clamping portion 1 is a V-shaped structure, and the side surface of the right clamping portion 1 is also provided with a V-shaped structure adapted thereto for clamping a nut or a bolt, as shown in fig. 3.

The right clamping part (the side connected with the workpiece) and/or the left clamping part (the side connected with the workpiece) are/is provided with a plurality of uniformly distributed convex teeth. The friction force between the workpiece and the convex teeth is enhanced, and the stability during pulling is further improved.

The fixed spanner opening 6 is provided with a connecting boss extending along the width direction (as shown in fig. 3, the transverse direction is the width direction);

the movable wrench opening 1 is provided with a socket slot matched with the connecting boss;

the movable spanner opening 1 is transversely arranged on the fixed spanner opening 6 in a sliding mode.

The section of the connecting boss is large at the top and small at the bottom. Through the structure, the possibility that the movable spanner opening 1 moves upwards and is separated from the fixed spanner opening 6 is avoided by adding a limiting mechanism for preventing the movable spanner opening 1 from moving upwards (taking the direction of fig. 2 as the reference direction).

The fixed jaw 6 is hinged with the trigger 2 through a hinge column 7.

The fixed spanner opening 6 is provided with a long groove 6-1 matched with the tension spring 4;

the tension spring 4 is positioned in the long groove 6-1.

The tension spring 4 is connected to the fixed jaw 6 through a first pin shaft 3;

a fixed sleeve hole 6-2 matched with the first pin shaft 3 is formed in the fixed spanner opening 6;

the fixed sleeve hole 6-2 is communicated with the elongated slot 6-1, so that the end part of the tension spring 4 can be conveniently stretched to the first pin shaft 3 positioned in the fixed sleeve hole 6-2.

The tension spring 4 is connected to the movable spanner opening 1 through a second pin shaft 5; the second pin shaft 5 plays a role in connection, and can limit the maximum two moving directions of the movable wrench opening 1 relative to the fixed wrench opening 6, so that the adjustment of controlling the maximum opening size is achieved.

The movable wrench opening 1 is provided with an inserting hole 1-1 matched with the second pin shaft 5. An elongated slot 6-1 is processed on the fixed jaw 6, a tension spring 4 is arranged in the elongated slot, one end of the tension spring 4 is fixed at the position of a fixed sleeve hole 6-2 of the fixed jaw through a first pin shaft 3, and the other end of the tension spring is fixed at the position of an insertion hole 1-1 of the movable jaw through a second pin shaft 5.

The disclosure of the present application also includes the following points:

(1) the drawings of the embodiments disclosed herein only relate to the structures related to the embodiments disclosed herein, and other structures can refer to general designs;

(2) in case of conflict, the embodiments and features of the embodiments disclosed in this application can be combined with each other to arrive at new embodiments;

the above embodiments are only embodiments disclosed in the present disclosure, but the scope of the disclosure is not limited thereto, and the scope of the disclosure should be determined by the scope of the claims.

Claims

1. A fast adjustable open spanner is characterized by comprising an adjustable spanner opening (1), a fixed spanner opening (6), a spanner handle (2) and a tension spring (4);

the movable wrench mouth (1) is arranged on the fixed wrench mouth (6) in a sliding mode, and the top of the movable wrench mouth and the fixed wrench mouth (6) form a clamping mouth for clamping a workpiece;

the bottom of the movable spanner opening (1) is provided with a plurality of uniformly distributed first teeth;

an arc-shaped end is arranged at the end part of the trigger (2), and a plurality of teeth II meshed with the teeth I are arranged on the arc-shaped end;

a hinge hole for being hinged with the trigger (2) is formed in the position, close to the bottom, of the fixed wrench opening (6);

the tension spring (4) is arranged between the movable wrench opening (1) and the fixed wrench opening (6), one end of the tension spring is connected with the movable wrench opening (1), and the other end of the tension spring is connected with the fixed wrench opening (6).

2. The fast adjustable open-end wrench according to claim 1, wherein the bottom of the adjustable wrench opening (1) is a plane, and a plurality of teeth are uniformly and fixedly arranged on the plane.

3. The fast adjustable open spanner according to claim 1, wherein the adjustable spanner opening (1) is provided with a right clamping portion; the fixed jaw (6) is provided with a left clamping part; and a clamping opening is formed between the left side clamping part and the right side clamping part.

4. The quick adjustable open spanner of claim 3 wherein the right side clamping part and/or the left side clamping part is provided with a plurality of uniformly distributed convex teeth.

5. The fast adjustable open spanner according to claim 1, wherein the fixed spanner opening (6) is provided with a connecting boss extending along the width direction;

the movable spanner opening (1) is provided with a socket slot matched with the connecting boss;

the movable spanner opening (1) is transversely arranged on the fixed spanner opening (6) in a sliding mode.

6. The open spanner of claim 5 wherein the cross-section of the connection boss is large at the top and small at the bottom.

7. A quick adjustable open spanner according to claim 1 wherein said fixed jaw (6) is hinged to said trigger (2) by means of a hinge post (7).

8. The fast adjustable open-end wrench as claimed in claim 1, wherein the fixed jaw (6) is provided with an elongated slot (6-1) adapted to the tension spring (4);

the tension spring (4) is positioned in the long groove (6-1).

9. The fast adjustable open spanner according to claim 1, wherein said tension spring (4) is connected to said fixed jaw (6) by a first pin (3);

a fixed trepan boring (6-2) matched with the first pin shaft (3) is arranged on the fixed spanner opening (6);

the fixed trepanning (6-2) is communicated with the long groove (6-1).

10. The fast adjustable open spanner according to claim 1, wherein said tension spring (4) is connected to said adjustable spanner opening (1) by a second pin (5);

the movable wrench opening (1) is provided with an inserting hole (1-1) matched with the second pin shaft (5).