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Safe and stable scissor jack and using method thereof

A jack and stable technology, applied in the direction of lifting device, etc., can solve the problems of difficult to guarantee safety, casualty parts, jack rollover, etc., to avoid safety accidents, the overall structure is simple, and the integrity is good.

Inactive Publication Date: 2019-07-09
宁波天胜传动件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the work of the above-mentioned scissor jack, a large part of the gravity of the heavy object is borne by the thread of the screw rod. When the thread of the screw rod is subjected to excessive axial pressure for a long time, it will be gradually damaged, and its safety is difficult to guarantee; In addition, the force transmission between the top and the base of the existing scissor jack is transmitted through a set of scissor-like struts, that is, the force is linear force. When it is not placed in a good position or the force on both sides is uneven When the jack is too large, it is easy to cause the jack to overturn and cause casualties or damage to parts

Method used

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  • Safe and stable scissor jack and using method thereof
  • Safe and stable scissor jack and using method thereof
  • Safe and stable scissor jack and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 , figure 2 As shown, a safe and stable scissor jack includes a base 1, a top plate 2, a support assembly 5, a handle 3 and a threaded screw 4; the support assembly 5 includes a left upper support rod 51, a left lower support rod 52, an upper right Support rod 54, right lower support rod 55, left connecting block 53, right connecting block 56; the first end of each upper supporting rod is rotatably connected with the top plate 2, the second end is rotatably connected with the connecting block of the corresponding orientation, and each lower support The first end of the rod is rotatably connected to the base 1, and the second end is rotatably connected to the connecting block of the corresponding orientation; the right connecting block 56 is provided with a through threaded hole 561, and the first end of the threaded screw rod 4 is connected to the left connecting block 53 is fixedly connected, and the second end passes through the threaded hole 561 and...

Embodiment 2

[0036] Such as image 3 As shown: this embodiment has been further deepened on the basis of embodiment 1, and its main improvement is that the above-mentioned scissor jack also includes a stabilizing assembly 7, and the stabilizing assembly 7 includes a front upper support rod 71 and a front lower support rod 72 , rear upper support rod 74, rear lower support rod 75, front connecting bolt 73, rear connecting bolt 76; the bottom of the screw rod of the front and rear connecting bolts 73,76 is a smooth part; the front upper supporting rod 71, rear upper supporting rod 74 The first end is rotatably connected to the top plate 2, and the second end is rotatably connected to the smooth part of the corresponding connecting bolt; the first end of the front lower support rod 72 and the rear lower support rod 75 are rotatably connected to the base 1, and the second end is rotatably connected. Connect to the smooth part of the corresponding connecting bolt. In the jack of this embodimen...

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Abstract

The invention discloses a safe and stable scissor jack and a using method thereof. The scissor jack is simple in structure, good in stability, high in safety and long in service life, and belongs to the technical field of jacks. The scissor jack comprises a base, a jacking plate, a supporting assembly, a rocking handle and a threaded screw rod; the supporting assembly comprises an upper left supporting rod, a lower left supporting rod, an upper right supporting rod, a lower right supporting rod, a left connecting block and a right connecting block; the first end of each upper supporting rod isrotationally connected to the jacking plate, and the second end of each upper supporting rod is rotationally connected to the connecting block in the corresponding direction; the first end of each lower supporting rod is rotationally connected to the base, and the second end of each lower supporting rod is rotationally connected to the connecting block in the corresponding direction; the right connecting block is provided with a through threaded hole, the first end of the threaded screw rod is fixedly connected to the left connecting block, and the second end of the threaded screw rod penetrates through the threaded hole and extends out; a rod hole matched with the rocking handle is formed in the second end of the threaded screw rod; and a permanent magnet chuck is fixedly embedded in theouter exposed surface, parallel to the threaded screw rod, of the right connecting block.

Description

technical field [0001] The invention relates to the technical field of jacks, in particular to a scissor jack with simple structure, good stability, high safety and long service life. Background technique [0002] With the gradual improvement of people's living standards and the popularization of automobiles, people not only have high requirements for the functions of automobiles, but also have higher and higher requirements for the performance of auxiliary tools that are necessary for vehicles. Or an essential tool for parts replacement, more and more become one of the subjects of people's research. [0003] Existing jacks are roughly divided into four categories: rack jacks, screw jacks, hydraulic jacks and scissor jacks. Among them, the scissor jack is a kind of mechanical jack, which mainly reduces the distance between the screw rods between the support rods through the reciprocating shaking of the handle, and then makes the top move up and down to realize the lifting a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F3/12
CPCB66F3/12
Inventor 叶枫
Owner 宁波天胜传动件有限公司
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