CN2546428Y

CN2546428Y - Electric jack

Info

Publication number: CN2546428Y
Application number: CN 02232962
Authority: CN
Inventors: 孙伯元
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-26
Filing date: 2002-04-26
Publication date: 2003-04-23
Anticipated expiration: 2012-04-26

Abstract

Disclosed is an electric jack, comprising a base. The base is hinged with a V-shaped lower supporting arm; the V-shaped lower supporting arm is hinged with a reversed V-shaped upper supporting arm by left and right shafts; the top of the upper supporting arm is hinged with an upper support; a lead screw is horizontally arranged between the two supporting arms; the rotation of the lead screw can drive the upper supporting arm to lift. The utility model is characterized in that the bottom of the base is connected with a bottom disk; one end of the lead screw is connected with a rotating disk which is connected with a transmission shaft; the transmission shaft is connected with a motor gearbox arranged on the end of the lead screw; the two lateral sides of the rotating disk are provided with a connected frame that is connected as a whole; the connected frame is connected by the method that the right shaft of the supporting arm goes through the connected frame; a back lug stretches out of the outer end of the connected frame in bent way; a front lug stretches out of the left shaft of the supporting arm; a balance rod passes between the front lug and the back lug; the lug on one end is fixedly connected with the balance rod, and the lug on the other end is movably connected with the balance rod. The utility model has the advantages of simple structure, convenient using, time saving and labor saving.

Description

Electronic jack

Technical field

The utility model relates to technical field of jacks, belongs to a kind of electronic jack.

Background technology

At present, be used for aspects such as vehicle maintenance and repair, when needing to support weight, widely used jack, hand-hydraulic formula jack and hand screw type jack are arranged, and hand-hydraulic formula jack is relatively heavier, though hand screw type jack is lighter, but when supporting, not only required great effort than the weight body, but also time-consuming.

Summary of the invention

The purpose of this utility model provides a kind of simple in structure, easy to use, not only laborsaving, but also the electronic jack of time-saving.

For achieving the above object, the utility model is taked following design plan:

A kind of electronic jack, a base is arranged, on base, be hinged with the lower support arm of V-arrangement, on the lower support arm of V-arrangement, be hinged with the upper support arm of inverted V-shaped by left and right sides rotating shaft, top at the upper support arm is hinged with upper bracket, be provided with a leading screw in two hold-down arm by-levels, rotational lead screw, can drive the upper bracket lifting, it is characterized in that: be connected with a chassis in the bottom of base, be connected with drive plate at an end of leading screw, this drive plate is connected with transmission shaft, this transmission shaft is connected with the motor transmission that is arranged on the leading screw end, is provided with one bonded assembly link span at the drive plate dual-side.

Described link span places connection by the right spindle of hold-down arm, be extended with a back lug in the bending of the outer end of link span, lug before the left rotary shaft of hold-down arm is extended with one, between the lug of front and back, placed a trammel beam, one end lug is captiveed joint with trammel beam, and other end lug and trammel beam flexibly connect.

The effect on chassis improves the stability of jack; The effect of link span is to connect motor transmission and motor; The effect of trammel beam makes heavier motor transmission of an end and motor obtain balance.

The utility model has the advantages that: simple in structure, easy to use, not only laborsaving, but also save time.

Description of drawings

Fig. 1 is a structural representation of the present utility model

Fig. 2 is Fig. 1 schematic top plan view

Fig. 3 is the chassis structure scheme drawing

Fig. 4 is the link span structural representation

Fig. 5 is the right TV structure scheme drawing of Fig. 4 link span

The specific embodiment

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5: a kind of electronic jack, a base 11 is arranged, on base 11, be hinged with the lower support arm 12 of V-arrangement, on the lower support arm 12 of V-arrangement by left and right sides rotating shaft 13,10 are hinged with the upper support arm 3 of inverted V-shaped, be hinged with upper bracket 4 on the top of upper support arm 3, be provided with a leading screw 1 in two hold-down arm by-levels, rotational lead screw 1, can drive upper bracket 4 liftings, it is characterized in that: be connected with a chassis 9 in the bottom of base 11, end at leading screw 1 is connected with drive plate 14, this drive plate 14 is connected with transmission shaft 15, this transmission shaft 15 is connected with the motor transmission 8 that is arranged on the leading screw end, is provided with one bonded assembly link span 6 at drive plate 14 dual-sides.

Described link span 6 places connection by the right spindle 10 of hold-down arm, be extended with a back lug 17 in the bending of the outer end of link span 6, lug 2 before the left rotary shaft 13 of hold-down arm is extended with one, between front and back lug 2,17, placed a trammel beam 5, one end lug 17 is captiveed joint with trammel beam 5 by hole 18, locknut 14, and other end lug 2 is passed with trammel beam 5 by trammel beam and flexibly connects.

Chassis 9 is connected with base 11, and is provided with elbow 16 at extended end, and its effect is the stability of strutting system that improves jack; The effect of link span is support on the one hand, connects motor transmission and motor, is on the other hand to be provided with back lug 17, and by being connected of preceding lug 2 and trammel beam, its effect is to make heavier motor transmission of an end and motor obtain balance; The worm gear that motor 7 drives in the change-speed box 8 by transmission shaft 15, drive plate 14, makes leading screw 1 clockwise rotate or rotate counterclockwise, and drives upper and lower hold-down arm and shrinks or expand, thereby make the elevating bracket 4 of jack carry out lifting, supports weight.

Use electronic jack, not only easy to use, but also save time, laborsaving

Claims

1, a kind of electronic jack, a base is arranged, on base, be hinged with the lower support arm of V-arrangement, on the lower support arm of V-arrangement, be hinged with the upper support arm of inverted V-shaped by left and right sides rotating shaft, top at the upper support arm is hinged with upper bracket, be provided with a leading screw in two hold-down arm by-levels, rotational lead screw, can drive the upper bracket lifting, it is characterized in that: be connected with a chassis in the bottom of base, be connected with drive plate at an end of leading screw, this drive plate is connected with transmission shaft, this transmission shaft is connected with the motor transmission that is arranged on the leading screw end, is provided with one bonded assembly link span at the drive plate dual-side.

2, electronic jack according to claim 1, it is characterized in that: described link span places connection by the right spindle of hold-down arm, be extended with a back lug in the bending of the outer end of link span, lug before the left rotary shaft of hold-down arm is extended with one, between the lug of front and back, placed a trammel beam, one end lug is captiveed joint with trammel beam, and other end lug and trammel beam flexibly connect.