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Radial closing structure suitable for pipes and pistol-shaped closing pliers

A pipe material, pistol-shaped technology, applied in the field of radial closing structure and pistol-type closing pliers, can solve the problems of low installation efficiency, low assembly quality, deformation, etc., and achieve convenient disassembly, maintenance and repair, and easy holding hold the effect

Pending Publication Date: 2019-08-09
SUZHOU YUYUAN MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the softness of the copper tube, if you do not grasp the strength and direction when closing the mouth, it will cause deformation
In the current installation process, most of the manual closures not only force the assembly quality to be low but also the installation efficiency is low

Method used

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  • Radial closing structure suitable for pipes and pistol-shaped closing pliers
  • Radial closing structure suitable for pipes and pistol-shaped closing pliers
  • Radial closing structure suitable for pipes and pistol-shaped closing pliers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] as attached figure 1 As shown, a radial closing structure suitable for pipe materials, the front end of the tong arm is the jaw 1, and the jaw 1 is in the shape of a semicircle. The rear end of the pliers arm 2 is its force-receiving end, and a guide groove 21 extending along the direction of the force arm is provided on the force-receiving end, and the hinge shaft at the front end of the first lever 3 fits in the guide groove 21 . A pivot 11 is set between the jaw 1 and the force-receiving end 2. When the pincer arm 2 rotates around the pivot 11, the jaw 1 can be displaced clockwise or counterclockwise to achieve clamping and loosening. open state.

[0038] The first lever 3 is an equidistant moment arm, and the moment arms at its two ends are almost equal. The front hinge shaft of the first lever 3 fits in the guide groove 21 , and the rear hinge end of the first lever 3 is hinged to the second lever 4 .

[0039] The second lever 4 is a bending lever, and its fulcr...

Embodiment 2

[0045]According to mechanical common sense, the jaw 1 can be divided into unilateral type, bilateral symmetrical type, and bilateral asymmetrical type. Bilateral symmetry can be specifically divided into single fulcrum and double fulcrum. Theoretically, as long as it is based on the transmission principle in Embodiment 1, it is completely possible to realize the above-mentioned pliers in the grid form. However, conditions such as structural optimization, beautiful appearance, and use effects need to be considered. Therefore, a bilaterally symmetrical structure with double fulcrums is used in this embodiment.

[0046] The specific structure is:

[0047] A radial closing structure suitable for pipe materials, comprising a symmetrical structure composed of two tong arms 2, two first levers 3, two second levers 4, and two connecting rods 5. When the two pliers arms 2 are corresponding, the two jaws 1 are closed and clamped, and when the two second levers 4 and the two connecting...

Embodiment 3

[0053] Based on the above two examples, the best fit can be clearly concluded:

[0054] The pliers arm 2 has the same rotation direction as the second lever 3 . Since both the articulation sequence and the shape of the lever will affect the transmission purpose, the transmission effect is finally determined by the rotation state of the tong arm 2 and the second lever 3 .

[0055] The opening and closing state of the inner angle α is the same as the opening and closing state of the jaw 1 . Also based on the consideration of the transmission relationship, when the second lever 4 and the pincer arm 2 have a synchronous rotation state, then the opening and closing state of the jaw 1 is related to the inner angle α, and the inner angle α gradually increases and the jaws Open gradually and vice versa.

[0056] Then, the reason for the change of the inner angle α between the second lever 4 and the connecting rod 5 is that the rotation fulcrum 41 of the second lever and the hinge po...

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Abstract

The invention discloses a radial closing structure suitable for pipes. The radial closing structure suitable for pipes comprises plier arms taking a pivot as a rotation center; jaws extend from the plier arms, the plier arms rotate around the pivot to enable the jaws to clamp a pipe and make the pipe to deform radially; the stressed end of one plier arm, one first lever, one second lever and one connecting rod are sequentially connected in an adjacent end-hinged manner; a rotating fulcrum of the first lever maintains a relatively fixed positional relationship with the pivot; the second leverrotates around another rotation fulcrum and shifts the first lever; the first lever rotates around the rotation fulcrum and shifts the plier arm; an inner included angle is reserved at the hinged position of the second lever and the connecting rod; and the rotation fulcrum of the second lever and the tail end of the connecting rod are matched on a same screw rod to realize change of the inner included angle. The structure design is reasonable, the transmission relation is clear, the transmission effect is ideal, and the structure is small in size and convenient to integrate, and transmission is labor-saving and does not require cooperation of a high-power motor.

Description

technical field [0001] The invention relates to the field of electric tools, in particular to a radial closing structure and pistol-type closing pliers suitable for pipe materials. Background technique [0002] As we all know, a large number of pipe products are involved in our daily life. For example, water pipes in toilets, return pipes in air conditioners, pressure pipes in hydraulic equipment, etc. A large number of them appear around us and are closely related to our lives. These pipe parts have specific material requirements due to work requirements, usage habits, etc. For example, the pressure pipes in hydraulic equipment are mostly high-density rubber pipes due to the limitation of pipeline direction; the return pipes of air conditioners use copper pipes because they need good heat conduction; the domestic water pipes are mainly iron pipes and PP pipes, and some are made of copper pipes. Quality water pipes to increase the copper ion content in the water. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D39/04
CPCB21D39/04
Inventor 秦贵荣叶荫华吴迈特
Owner SUZHOU YUYUAN MASCH CO LTD
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