CN212919018U

CN212919018U - Tool clamp mouth width adjusting structure

Info

Publication number: CN212919018U
Application number: CN202020910074.XU
Authority: CN
Inventors: 王衍裕
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-04-09
Anticipated expiration: 2030-05-26

Abstract

A width adjusting structure for a tool clamp opening comprises a first clamp body and a second clamp body which are crossed and overlapped. The first clamp body is provided with a long hole, and one side of the long hole is provided with a tooth row; the second clamp body is provided with a shaft column which extends through the long hole, the tail end of the shaft column is provided with a side plate which extends out of one side of the tooth row, and the shaft column is provided with a tooth block which is meshed with the tooth row. When the second clamp body is opened relative to the first clamp body, the shaft column is driven to move from a first position to a second position in the long hole, and then the width of the clamping opening is increased.

Description

Tool clamp mouth width adjusting structure

Technical Field

The present invention relates to hand tools, and more particularly to a pair of pliers.

Background

The pliers is a tool which utilizes the lever principle to save labor. In order to improve the labor-saving effect, the force application arm of the pliers needs to be long, and the force resisting arm needs to be short, however, the short force resisting arm can cause the opened clamping opening not to be wide enough, so that the workpiece can not be properly clamped; on the other hand, if the jaw is made to a predetermined width, the force-applying arm (i.e., the forceps handle) is longer and the distal end is opened a greater distance, making it difficult to operate with one hand. Therefore, taiwan patent publication M412843 discloses a slip joint pliers, wherein a pliers body is provided with a window, wherein the window is formed in a shape with wider ends and narrower middle, and the other pliers body is inserted into the window through a pivot, when the two pliers bodies are opened relatively, the pivot can move in the window, so that the width of the clamping opening is increased.

In the above-mentioned known structure, the pivot is formed in a long and flat shape, and must be placed in a specific orientation to pass through the narrow passage in the middle of the window, so that the position of the pivot must be adjusted before opening the forceps, and a wide jaw can be obtained after opening the forceps, which is complicated in operation. On the other hand, the user must use both hands to perform the above operation, but cannot use one hand to complete the operation, which results in inconvenient use.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a width adjustment structure for a tool clamp opening, which can expand the clamp opening by moving a shaft when the tool is opened, and has the advantages of simple structure and convenient operation.

In order to achieve the aforesaid objective, the present invention provides a width adjusting structure for a tool holder opening, comprising:

the first clamp body is provided with a long hole with equal width along the length direction, and one side of the long hole is provided with a tooth row extending along the length direction;

a second clamp body crossed and overlapped with the first clamp body and provided with a shaft post penetrating and extending in the long hole, wherein the tail end of the shaft post is provided with a side plate extending out of one side of the tooth row, and the shaft post is provided with a tooth block meshed with the tooth row; when the second clamp body is opened relative to the first clamp body, the shaft column is driven to move from a first position to a second position in the long hole, and the width of the clamping opening is further increased.

In one embodiment, the second clamp body has a through hole, a fixing nut is disposed on one side of the through hole, and one end of the shaft passes through the through hole and is locked with the fixing nut.

In another embodiment, the shaft post is fixed to the second clamp body by riveting.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required to be used in the description of the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic exploded perspective view of the present invention.

Fig. 2 is a partial schematic view of the present invention.

Fig. 3 is a schematic view of a first usage state of the present invention.

Fig. 4 is a schematic view of a second usage state of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1 and 2, a tool holder width adjusting structure according to the present invention includes a first clamp body 1 and a second clamp body 2 stacked in a cross manner. The first pincer body 1 is provided with a long hole 11, one side of the long hole 11 is provided with a tooth row 12 extending along the length direction, wherein the tooth row 12 and the first pincer body 1 are integrally formed by forging, so as to achieve the purpose of high strength.

On the second clamp body 2, a through hole 21 is formed corresponding to the slot 11, and a fixing nut 22 is formed on one side thereof. A shaft 3 is provided with a threaded section 31 at one end and is locked to the fixing nut 22 through the slot 11 and the through hole 21, thereby being fixed to the second caliper body 2. Alternatively, in other embodiments, the shaft 3 can be riveted to the second clamp body 2.

The shaft 3 extends through the slot 11, and a side plate 32 is disposed at the end, wherein the side plate 32 extends to the outside of one side of the tooth row 12, so that the first caliper body 1 is positioned on the second caliper body 2 due to the blocking of the tooth row 12 by the side plate 32. And a cover plate capable of shielding the side plate 32 is arranged on one side of the first clamp body 1 to prevent the scraps from entering the long hole 11.

One side of the shaft column 3 is provided with a toothed block 33 engaged with the toothed row 12, wherein the toothed block 33 and the toothed row 12 can be engaged in the shape of straight teeth or helical teeth. When the second caliper body 2 swings open relative to the first caliper body 1, the shaft 3 rotates with the second caliper body 2, and the shaft 3 can move from a first position shown in fig. 3 to a second position shown in fig. 4 in the elongated hole 11 by the meshing relationship between the teeth 33 and the teeth row 12. When the two clamp bodies are opened, the width of the clamping opening can be expanded by utilizing the displacement of the shaft column 3 in the long hole 11, so as to be beneficial to clamping larger workpieces.

Borrow by above-mentioned structure, the utility model discloses when opening two pincers bodies, this jack-post 3 will be in step along with this second pincers body 2's pivot pendulum and remove in this slot hole 11, need not user manual adjustment this jack-post 3's position in addition, convenient to use person in view of the above grips the pliers with the one hand and operates and open two pincers bodies, then the width of pressing from both sides the mouth will expand automatically, and then produces the easy and convenient to use's of operation efficiency.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a tool holder mouth width adjustment structure which characterized in that, including:

2. The toolholder mouth width adjustment structure as set forth in claim 1, wherein the row of teeth and the block of teeth are engaged in a straight or skewed tooth configuration.

3. The structure of claim 1, wherein the second body has a through hole, a fixing nut is disposed at one side of the through hole, and an end of the shaft passes through the through hole and is locked with the fixing nut.