CN205294548U - Tensioning device - Google Patents

Abstract

The utility model discloses a tensioning device, including screw rod, first nut, second nut, first magnet, second magnet, gyro wheel, gyro wheel stand, tie bi, the gyro wheel install the gyro wheel stand on, the screw rod pass indisputable wall and gyro wheel stand, the screw rod on install first magnet and second magnet the screw rod both ends install first nut and second nut, second magnet fix in the recess of gyro wheel stand, the homopolar relative installation of first magnet and second magnet. The utility model discloses a tensioning device has good durability, compare that general spring rebound effect power is bigger, regulation nature also stronger, the cost is lower.

Description

A kind of swelling device

Technical field

This utility model belongs to mechanical engineering field, particularly relates to a kind of swelling device.

Background technology

The device that the swelling device of Mechanical Industry of China is mostly core with spring, the compression stress mainly by spring carries out reaction force, and spring then gets rusty easily, not durable, modulability is limited, relatively costly.

Utility model content

The purpose of this utility model is in that to provide a kind of swelling device, it is intended to solve the problem that existing spring swelling device is not durable, modulability is limited, relatively costly.

This utility model is achieved in that a kind of swelling device includes screw rod, the first nut, the second nut, the first Magnet, the second Magnet, roller, roller column, Tie Bi;

Described roller is arranged on described roller column, and described screw rod passes described ferrum wall and roller column;

Described screw rod is provided with the first Magnet and the second Magnet, the first nut and the second nut are installed at described screw rod two ends;

The second described Magnet is fixed in the groove of described roller column, and the first Magnet and the second Magnet homopolarity are mounted opposite.

Swelling device of the present utility model has good endurance quality, compares that general spring reaction force is bigger, modulability is also higher, less costly.

Accompanying drawing explanation

Fig. 1 is the axonometric chart of the swelling device that this utility model embodiment provides;

Fig. 2 is the front view of the swelling device that this utility model embodiment provides;

Fig. 3 is the partial enlarged drawing of the swelling device that this utility model embodiment provides;

In figure: 1, screw rod; 2, the first nut; 3, the second nut; 4, the first Magnet; 5, the second Magnet; 6, roller; 7, roller column; 8, Tie Bi.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described further:

Refer to Fig. 1 to Fig. 3:

A kind of swelling device, including screw rod the 1, first nut the 2, second nut the 3, first Magnet the 4, second Magnet 5, roller 6, roller column 7, ferrum wall 8;

Described roller 6 is arranged on described roller column 7, and described screw rod 1 passes described ferrum wall 8 and roller column 7;

Described screw rod 1 is provided with the first Magnet 4 and the second Magnet 5, the first nut 2 and the second nut 3 is installed at described screw rod 1 two ends;

The second described Magnet 5 is fixed in the groove of described roller column 7, and the first Magnet 4 and the second Magnet 5 homopolarity are mounted opposite.

Tighten the second nut 3, the first Magnet 4 can be made close to the second Magnet 5, first Magnet 4 is mounted opposite to the second Magnet 5 homopolarity, second Magnet 5 pushing rolling wheels column 7 is close to ferrum wall 8, but fixedly mount between ferrum wall 8 and roller column 7 apart from constant, roller can be made after roller receives power to automatically reset.

Swelling device of the present utility model has good endurance quality, compares that general spring reaction force is bigger, modulability is also higher, less costly.

Utilize technical scheme described in the utility model, or those skilled in the art is under the inspiration of technical solutions of the utility model, design similar technical scheme, and reach above-mentioned technique effect, all fall into protection domain of the present utility model.

Claims (1)

1. a swelling device, it is characterised in that described swelling device includes screw rod, the first nut, the second nut, the first Magnet, the second Magnet, roller, roller column, Tie Bi;

Described roller is arranged on described roller column, and described screw rod passes described ferrum wall and roller column;

Described screw rod is provided with the first Magnet and the second Magnet, the first nut and the second nut are installed at described screw rod two ends;

The second described Magnet is fixed in the groove of described roller column, and the first Magnet and the second Magnet homopolarity are mounted opposite.