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Jack fixed in the snow

A jack and snow technology, applied in the direction of lifting devices, etc., can solve the problems of jack offset, failure to use car jacks, and deep snow drifts, etc., and achieve the effect of convenient movement

Active Publication Date: 2015-10-07
NINGBO TIANYI SHAFT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the car breaks down in the snow, in the thick snow environment in the north, the car jack will sink into the snowdrift when placed in the snow, and the jack cannot be fixed in the snowdrift, which will cause the jack to shift or Can't jack up the car, so can't use the car jack properly

Method used

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  • Jack fixed in the snow
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  • Jack fixed in the snow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0017] Embodiment 2: Compared with Embodiment 1, the difference lies in that the way the jack is fixed in the snow is different, and the rest are the same.

[0018] see figure 1 , Figure 4 and Figure 5 , the lower side of the base 5 is provided with a No. 2 groove 108 , and two No. 2 support plates 109 are slidably connected in the No. 2 groove 108 , and the No. 2 support plate 109 is perpendicular to the base 5 .

[0019] A two-way screw 110 is also provided, and the two-way screw 110 passes through the two No. 2 support plates 109 at the same time. The two-way screw 110 includes a screw part 111 and a screw two part 112. The threads of portion 112 are reversed. The two-way screw 110 with opposite threads at both ends can shrink the two No. 2 support plates 109 inwards at the same time as long as one end is rotated, which is convenient and time-saving to use.

[0020] The middle part of the two-way screw 110 has no threads, so as to prevent the second support plate 109 ...

Embodiment 3

[0023] Embodiment 3: Compared with Embodiment 1, the difference lies in that the way the jack is fixed in the snow is different, and the rest are the same.

[0024] see figure 1 and Figure 6 , the lower bottom of the base 5 is provided with a horizontal No. 1 protruding line 210 , and the horizontal direction is a straight line parallel to the long side of the base 5 . The bottom of the base 5 is provided with a longitudinal No. 2 convex strip 211 , and the longitudinal direction is a straight line parallel to the short side of the base 5 . The lower bottom of the base 5 is also provided with an oblique No. 3 convex line 212 . The first convex line 210, the second convex line 211 and the third convex line 212 intersect each other and combine with each other. The horizontal, vertical and oblique staggered raised lines can effectively prevent the jack base 5 from sliding sideways.

[0025] Rubber teeth are arranged beside the No. 1 convex line 210 , the No. 2 convex line 21...

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PUM

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Abstract

The invention discloses a lifting jack fixed in a snowfield. The lifting jack fixed in the snowfield comprises a first supporting arm, a second supporting arm, a third supporting arm and a fourth supporting arm. A base is arranged on the position where the first supporting arm is connected with the second supporting arm; a tray is arranged on the position where the third supporting arm is connected with the fourth supporting arm; a second groove is formed on the lower lateral side of the base, two second supporting plates are connected in the second groove in a sliding mode, further, double-direction screws are arranged on the second groove, simultaneously penetrate through the two supporting plates, and comprise a screw first part and a screw second part, wherein threads of the screw first rod and threads of the screw second rod are reverse. The lifting jack can be fixedly supported in a snow drift, and can be normally and safely used.

Description

technical field [0001] The invention belongs to a jack fixed in the snow. Background technique [0002] Jack is a kind of light and small lifting equipment that uses a rigid top lifting part as a working device, and lifts a weight in a stroke by a top bracket or a bottom claw. According to the structural characteristics, it can be divided into three types: rack jack, screw jack and hydraulic jack. Jack is the simplest lifting equipment with a small lifting height (less than 1m). It has two kinds of mechanical and hydraulic. There are two types of mechanical jacks, the rack type and the screw type. Due to the small lifting capacity and laborious operation, they are generally only used for mechanical maintenance work, and are not suitable for bridge repairing. The hydraulic jack has compact structure, stable operation and self-locking effect, so it is widely used. Its disadvantage is that the lifting height is limited and the lifting speed is slow. The types of car jacks ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66F3/00
Inventor 叶培玉
Owner NINGBO TIANYI SHAFT