TW202144127A - Tool jaw width adjustment structure capable of increasing the width of the tool jaws - Google Patents

Abstract

A tool jaw width adjustment structure includes a first plier body and a second plier body overlapping each other. The first plier body is provided with an elongated hole, and one side of the elongated hole is provided with a tooth row. The second plier body is provided with a shaft column extending through the elongated hole, and an end of the shaft column is provided with a side plate extending to one side of the tooth row. The shaft column is provided with a tooth block that engages with the tooth row. When the second plier body is opened relative to the first plier body, the shaft column is driven to move from a first position to a second position in the elongated hole, thereby increasing the width of the jaws.

Description

Tool jaw width adjustment structure

The present invention relates to hand tools, especially pliers.

Pliers are a tool that uses the principle of leverage to save effort. In order to further improve the labor-saving effect, the force arm of the pliers should be long and the resistance arm should be short. However, the short resistance arm will cause the opened jaw to be not wide enough to properly grip the workpiece; on the other hand, if the clamp is used When the mouth reaches the predetermined width, the force application arm (i.e. the plier handle) will be longer and the distal end will open more, making it difficult to operate with one hand. Therefore, my country's New Patent Announcement No. M412843 discloses a carp pliers, a plier body is provided with a window, wherein the window is formed in the shape of wider ends and narrower in the middle, and the other pliers are penetrated through the window with a pivot. In the middle, when the two clamp bodies are relatively opened, the pivot can be moved in the window, so as to increase the width of the jaw.

However, in the above-mentioned conventional structure, the pivot is formed in a long and flat shape, and must be placed in a specific direction to pass through the narrow channel in the middle of the window. After opening, a wider jaw is obtained, which is very complicated in operation. On the other hand, the user must use both hands to perform the above-mentioned operations, which cannot be done with one hand, resulting in the disadvantage of inconvenience.

In view of this, how to improve the above problem is the primary problem to be solved by the present invention.

The main purpose of the present invention is to provide a tool jaw width adjustment structure, which can utilize the movement of the shaft column to expand the jaw when the tool is opened, and has the functions of simple structure and convenient operation.

In order to achieve the aforementioned purpose, the present invention provides a tool jaw width adjustment structure, which includes: a first clamp body, which is provided with an elongated hole of equal width along the length direction, and one side of the elongated hole is provided with a tooth row extending along the length direction; A second pliers body intersecting and overlapping with the first pliers body is provided with a shaft post extending through the long hole, the end of the shaft post is provided with a side plate extending to one side of the tooth row, the shaft The column is provided with a tooth block engaging 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 in the elongated hole to a second position, thereby increasing the The width of the large jaw.

In one embodiment, the second forceps body is provided with a through hole, one side of the through hole is provided with a fixing nut, and one end of the shaft post passes through the through hole and is locked with the fixing nut.

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

The above-mentioned objects and advantages of the present invention can be easily understood from the detailed description and accompanying drawings of the following selected embodiments.

Please refer to Figures 1 and 2, which are the tool jaw width adjustment structure provided by the present invention, which includes a first clamp body 1 and a second clamp body 2 which are crossed and overlapped. The first pliers body 1 is provided with a long hole 11 , and one side of the long hole 11 is provided with a tooth row 12 extending along its length direction, wherein the tooth row 12 is integrally forged with the first pliers body 1 , so as to for the purpose of high strength.

The second clamp body 2 is provided with a through hole 21 corresponding to the long hole 11, and a fixing nut 22 is provided on one side thereof. A shaft column 3 is provided with a threaded section 31 at one end thereof, and passes through the long hole 11 and the through hole 21 and is locked to the fixing nut 22 , and is thus fixed to the second clamp body 2 . Or in other embodiments, the shaft post 3 can be fixed on the second clamp body 2 by riveting.

The shaft column 3 penetrates through the long hole 11 and is provided with a side plate 32 at the end, wherein the side plate 32 extends to one side of the tooth row 12 , so that the first clamp body 1 is affected by the side plate due to the tooth row 12 . 32 to be positioned on the second clamp body 2 . In addition, one side of the first clamp body 1 is provided with a cover plate that can cover the side plate 32 to prevent debris from entering the long hole 11 .

One side of the above-mentioned shaft column 3 is provided with a tooth block 33 meshing with the tooth row 12 , wherein the tooth block 33 and the tooth row 12 can engage in the shape of straight teeth or helical teeth. When the second tong body 2 is pivoted and opened relative to the first tong body 1, the shaft column 3 rotates with the second tong body 2, and at the same time, through the meshing relationship between the tooth block 33 and the tooth row 12, the shaft The column 3 can be moved in the long hole 11 from a first position as shown in FIG. 3 to a second position as shown in FIG. 4 . When the two clamp bodies are opened, the displacement of the shaft column 3 in the long hole 11 can be used to expand the width of the jaws, so as to facilitate the clamping of larger workpieces.

With the above-mentioned structure, when the two clamp bodies are opened in the present invention, the shaft column 3 will move in the long hole 11 synchronously with the pivoting of the second clamp body 2 , and there is no need for the user to manually adjust the two clamp bodies. The position of the shaft column 3 makes it convenient for the user to hold the pliers with one hand and operate to open the two pliers, and the width of the jaws will automatically expand, thereby producing the effect of easy operation and convenient use.

However, the disclosure of the above embodiments is only used to illustrate the present invention, not to limit the present invention, and the replacement of equivalent elements should still belong to the scope of the present invention.

To sum up, those skilled in the art can understand that the present invention can achieve the above-mentioned purpose, and it is in compliance with the provisions of the Patent Law, and an application can be filed in accordance with the law.

1: The first clamp body 11: Long hole 12: tooth row 2: Second clamp body 21: Perforation 22: Fixed nut 3: Axle column 31: Threaded segment 32: Side panels 33: tooth block

Figure 1 is a three-dimensional exploded schematic diagram of the present invention; Figure 2 is a partial schematic diagram of the present invention; Figures 3 and 4 are schematic diagrams of the use state of the present invention.

1: The first clamp body

11: Long hole

12: tooth row

2: Second clamp body

21: Perforation

22: Fixed nut

3: Axle column

31: Threaded segment

32: Side panels

33: tooth block

Claims (4)

A tool jaw width adjustment structure, comprising: a first clamp body, which is provided with an elongated hole of equal width along the length direction, and one side of the elongated hole is provided with a tooth row extending along the length direction; A second pliers body intersecting and overlapping with the first pliers body is provided with a shaft post extending through the long hole, the end of the shaft post is provided with a side plate extending to one side of the tooth row, the shaft The column is provided with a tooth block engaging 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 in the elongated hole to a second position, thereby increasing the The width of the large jaw. The tool jaw width adjustment structure according to claim 1, wherein the tooth row and the tooth block are engaged in the shape of straight teeth or helical teeth. The tool jaw width adjustment structure as claimed in claim 1, wherein the second jaw body is provided with a through hole, a fixing nut is arranged on one side of the through hole, and one end of the shaft post passes through the through hole and is connected with the fixing nut. Cap locking. The tool jaw width adjustment structure according to claim 1, wherein the shaft column is fixed on the second clamp body by riveting.

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