CN203903891U - Worm gear type jack - Google Patents

Abstract

The utility model relates to a jack, in particular to a worm gear jack. The worm gear jack of the present utility model comprises a box body, a worm, a left worm wheel, a right worm wheel, a driving bevel gear, a driving shaft, a hand wrench, two transmission rods and a top block, and the hand wrench is connected with the driving shaft , the driving shaft is connected with the driving bevel gear, the driving bevel gear is connected with the bevel gear on the worm, the worm is connected with the left worm gear and the right worm gear, and the transmission rod One end is rotatably connected to the top block, the other end is rotatably connected to the left worm wheel or the right worm wheel, the worm, the left worm wheel, the right worm wheel, the driving bevel gear and the driving shaft The worm is arranged in the box, and the worm is connected with the box through a worm shaft. Compared with the prior art, the worm gear jack of the utility model has the advantages of simple structure, low production cost and self-locking function.

Description

A kind of worm gear jack

technical field

The utility model relates to a jack, in particular to a worm gear jack.

Background technique

Jack is a kind of light and small lifting equipment that uses a rigid jack as a working device to lift heavy objects in the stroke by a top bracket or a bottom claw. However, the structure of the current jack is generally more complicated, and the production cost is higher.

Utility model content

The purpose of the utility model is to provide a worm gear jack to solve the technical problem that the structure of the jack in the prior art is generally complicated and the production cost is high.

The utility model purpose is realized through the following technical solutions:

A worm gear jack, comprising a box, a worm, a left worm gear, a right worm gear, a driving bevel gear, a driving shaft, a hand wrench, two transmission rods and a top block, the hand wrench is connected to the driving shaft, and the The driving shaft is connected with the driving bevel gear, the driving bevel gear is connected with the bevel gear on the worm, the worm is connected with the left worm gear and the right worm gear, and one end of the transmission rod is connected with the The top block is rotatably connected, and the other end is rotatably connected with the left worm wheel or the right worm wheel, and the worm, the left worm wheel, the right worm wheel, the driving bevel gear and the driving shaft are arranged on In the box, the worm is connected with the box through a worm shaft.

Preferably, it also includes an auxiliary shaft and an auxiliary bevel gear, the auxiliary shaft is connected with the auxiliary bevel gear, the auxiliary bevel gear is connected with the bevel gear on the worm, and the auxiliary shaft can be connected with the hand crank Wrench connection.

Preferably, the upper end of the box body is provided with a through hole that can accommodate the extension of the transmission rod.

Preferably, a limiting body is also included, and the top block is arranged in a limiting hole of the limiting body.

A worm gear jack, comprising a box, a worm, a left worm gear, a right worm gear, a driving bevel gear, a driving shaft, a hand wrench, two transmission rods and a top block, the hand wrench is connected to the driving shaft, and the The driving shaft is connected with the driving bevel gear, the driving bevel gear is connected with the bevel gear on the worm, the worm is connected with the left worm gear and the right worm gear, and one end of the transmission rod is connected with the The top block is rotatably connected, and the other end is rotatably connected with the left worm wheel or the right worm wheel, and the worm, the left worm wheel, the right worm wheel, the driving bevel gear and the driving shaft are arranged on In the box, the worm is connected to the box through a worm shaft; the worm gear jack also includes an auxiliary shaft and an auxiliary bevel gear, the auxiliary shaft is connected to the auxiliary bevel gear, and the auxiliary bevel gear is connected to the auxiliary bevel gear. The bevel gear transmission on the worm is connected, and the auxiliary shaft can be connected with the hand wrench; the upper end of the box is provided with a through hole that can accommodate the transmission rod; the worm gear jack also includes a limit The position body, the top block is arranged in the limit hole of the limit body.

Compared with the prior art, the utility model has the following beneficial effects:

The worm gear jack of the utility model has the advantages of simple structure, low production cost and self-locking function.

Description of drawings

Fig. 1 is the structural representation of the worm gear jack of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and embodiment describe the utility model in detail.

Please refer to Fig. 1, the worm gear type jack of the present utility model comprises box body 50, worm screw 30, left worm gear 20, right worm gear 40, driving bevel gear 91, driving shaft 90, hand wrench 60, two transmission rods 70 and top Block 100, the hand wrench 60 is detachably connected with the driving shaft 90, the driving shaft 90 is fixedly connected with the driving bevel gear 91, the driving bevel gear 91 is connected with the bevel gear transmission on the worm 30, the worm 30 is connected with the left worm gear 20 and the right worm gear 40 Transmission connection, one end of the transmission rod 70 is rotatably connected with the top block 100, and the other end is rotatably connected with the left worm wheel 20 or the right worm wheel 40, and the worm 30, the left worm wheel 20, the right worm wheel 40, the driving bevel gear 91 and the driving shaft 90 are set Inside the housing 50 , the worm 30 is connected to the housing 50 via the worm shaft 10 . The upper end of the box body 50 is provided with a through hole for accommodating the extension of the transmission rod 70 .

In this example, the worm gear jack can also include an auxiliary shaft 80 and an auxiliary bevel gear 81, the auxiliary shaft 80 and the auxiliary bevel gear 81 are fixedly connected, the auxiliary bevel gear 81 is connected with the bevel gear transmission on the worm screw 30, and the auxiliary shaft 80 can be connected with Hand wrench 60 connection. Setting the auxiliary shaft 80 and the auxiliary bevel gear 81 can also drive the top block 100 to jack up in another direction.

In this example, a limiting body 200 is also included, and the top block 100 is arranged in the limiting hole of the limiting body 200 so that the top block 100 can only move up and down, but cannot move forward, backward, left and right.

During use, the worm gear jack is first placed on the bottom surface of the object to be lifted, and the top block 100 abuts against the bottom surface of the object to be lifted, and the position of the limiting body 200 is fixed so that the top block 100 is arranged on the bottom surface of the limiting body 200. In the limiting hole, turn the hand wrench 60 to drive the driving bevel gear 91 to rotate through the driving shaft 90, and then drive the worm 30 to rotate. The block 100 moves upwards, thereby jacking up the object to be jacked up. When the object to be lifted is to be put down, just turn the hand wrench 60 in the opposite direction.

When it is necessary to drive the top block 100 to rise in the other direction, connect the hand wrench 60 with the auxiliary shaft 80, turn the hand wrench 60, the auxiliary bevel gear 81 is driven by the auxiliary shaft 80, and then the worm 30 is driven to rotate, and the worm 30 drives The left worm wheel 20 and the right worm wheel 40 rotate backwards at the same time, and then drive the top block 100 to move upward through the transmission rod 70, thereby jacking up the object to be lifted.

The worm gear jack of the utility model has the advantages of simple structure, low production cost and self-locking function.

The above disclosures are only a few specific embodiments of the present application, but the present application is not limited thereto, and any changes conceivable by those skilled in the art shall fall within the protection scope of the present application.

Claims (5)

1. a worm-gear type jack, it is characterized in that, comprise casing, worm screw, left worm gear, right worm gear, drive bevel gear, imput shaft, hand spanner, two drive links and jacking block, described hand spanner is connected with described imput shaft, described imput shaft is connected with described drive bevel gear, cone tooth on described drive bevel gear and described worm screw is in transmission connection, described worm screw and described left worm gear, described right worm drive connects, one end of described drive link and described jacking block are rotatably connected, the other end and described left worm gear or described right worm gear are rotatably connected, described worm screw, described left worm gear, described right worm gear, described drive bevel gear and described imput shaft are arranged in described casing, described worm screw is connected with described casing by worm shaft.

2. worm-gear type jack as claimed in claim 1, it is characterized in that, also comprise asessory shaft and auxiliary finishing bevel gear cuter, described asessory shaft is connected with described auxiliary finishing bevel gear cuter, cone tooth on described auxiliary finishing bevel gear cuter and described worm screw is in transmission connection, and described asessory shaft can be connected with described hand spanner.

3. worm-gear type jack as claimed in claim 1, is characterized in that, described casing upper end is provided with and can holds the through hole that described drive link stretches out.

4. worm-gear type jack as claimed in claim 1, is characterized in that, also comprises limit body, and described jacking block is arranged in the spacing hole of described limit body.

5. a worm-gear type jack, it is characterized in that, comprise casing, worm screw, left worm gear, right worm gear, drive bevel gear, imput shaft, hand spanner, two drive links and jacking block, described hand spanner is connected with described imput shaft, described imput shaft is connected with described drive bevel gear, cone tooth on described drive bevel gear and described worm screw is in transmission connection, described worm screw and described left worm gear, described right worm drive connects, one end of described drive link and described jacking block are rotatably connected, the other end and described left worm gear or described right worm gear are rotatably connected, described worm screw, described left worm gear, described right worm gear, described drive bevel gear and described imput shaft are arranged in described casing, described worm screw is connected with described casing by worm shaft, described worm-gear type jack also comprises asessory shaft and auxiliary finishing bevel gear cuter, and described asessory shaft is connected with described auxiliary finishing bevel gear cuter, and the cone tooth on described auxiliary finishing bevel gear cuter and described worm screw is in transmission connection, and described asessory shaft can be connected with described hand spanner, described casing upper end is provided with and can holds the through hole that described drive link stretches out, described worm-gear type jack also comprises limit body, and described jacking block is arranged in the spacing hole of described limit body.