Electric and manual dual-purpose jack

A kind of jack and manual technology, applied in the direction of lifting device, etc., can solve the troublesome, laborious and time-consuming problems of car tire replacement and maintenance

Inactive Publication Date: 2008-02-20
胡国贤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It generally includes a base, a bracket, a lifting screw engaged with a nut on the bracket, an operating handle connected to the lifting screw, etc., but when such a jack is used to change tires and repair the car, its lifting is performed by hand (or manual jack). pressure) t

Method used

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  • Electric and manual dual-purpose jack
  • Electric and manual dual-purpose jack
  • Electric and manual dual-purpose jack

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Referring to Fig. 1 and Fig. 2, electric jack of the present invention includes support 5, screw mandrel 4, motor 9, multistage planetary reducer 10, eccentric wheel 11 and two return force springs 3,7. Bracket 5 is a scissor-type bracket with four arms up and down symmetrical. Reducer 10 is coaxially connected with motor 9. Transmission gear 12 is coaxially connected with reducer 10. Transmission gear 12 is also meshed with clutch gear 13. Clutch gear 13 passes through the screw rod The shaft pin is sleeved on the screw rod 4, and a return spring 14 is sleeved between the clutch gear 13 and the handle interface 1. On the other side of the clutch gear 13, there is an eccentric wheel 11 with a rotating handle, and the screw rod 4 has two There is no thread at the end, and one end of the screw rod 4 is socketed with the two arms of the bracket 5 through the movable nut 6, and the two ends of the screw rod 4 have hand handle interfaces 1, 8, and there are sockets between th...

Embodiment 2

[0015] Referring to Fig. 3 and Fig. 4, the electric and manual dual-purpose jack of the present invention includes a bracket 5, a screw mandrel 4, a motor 9, a multistage planetary reducer 10, an eccentric wheel 11 and two return springs 3,7. Bracket 5 is a scissor-type bracket with four arms up and down symmetrical. Reducer 10 is coaxially connected with motor 9. Transmission gear 12 is coaxially connected with reducer 10. Transmission gear 12 is also meshed with clutch gear 13. Clutch gear 13 passes through the screw rod The shaft pin is sleeved on the screw rod 4, and the return spring 14 is sleeved between the clutch gear 13 and the handle interface 8. On the other side of the clutch gear 13, there is an eccentric wheel 11 with a rotating handle. One end of the screw rod 4 The two arms of the movable nut 6 and the bracket 5 are socketed, and the two ends of the screw rod 4 are threadless and connected to the return force springs 3, 7, wherein the return force spring 7 conne...

Embodiment 3

[0017] Referring to Fig. 5, the electric and manual dual-purpose jack of the present invention includes a bracket 5, a screw mandrel 4, a motor 9, a multistage planetary reducer 10, an eccentric wheel 11 and two return springs 3,7. The bracket 5 is a Y-shaped bracket with two arms movably connected, the speed reducer 10 is coaxially connected with the motor 9, the transmission gear 12 is coaxially connected with the speed reducer 10, and the transmission gear 12 is also meshed with the clutch gear 13, and the clutch gear 13 passes through the wire The shaft pin is socketed on the screw rod 4, and the return spring 14 is socketed between the clutch gear 13 and the handle interface 1. On the other side of the clutch gear 13, there is an eccentric wheel 11 with a rotating handle, and the screw rod 4 One end is socketed with one arm of the bracket 5 through the movable nut 6, and the two ends of the screw rod 4 have no thread and are connected with the return force springs 3, 7, wh...

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PUM

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Abstract

The invention relates to an electric driving and hand operating dual-purpose jack, which comprises a bracket and a lead screw, and one end of the lead screw is connected with the bracket through a moveable nut, and the end point of the lead screw is provided with a crank handle interface. The invention is characterized in that the invention further comprises a motor, a reducer, an eccentric cam and two reverberatory force springs. The reducer and the motor are coaxially connected with each other, and the transmission gear and the reducer are coaxially connected with each other, and the transmission gear is meshed with the clutch gear. The clutch gear is sleeved on the lead screw through the lead screw shaft pin. A back spring is arranged between the clutch gear and the crank handle interface. The other surface of the clutch gear is provided with the eccentric cam and is provided with a rotating handle. Two ends of the lead screw have no threads and are connected with the reverberatory force springs. The electric driving and hand operating dual-purpose jack not only realizes the electric driving lifting of the jack, but also can be lifted by had operation, which saves time and force when the car is changing the tyre or in maintenance.

Description

technical field [0001] The invention relates to a jack. Background technique [0002] Used jack on known automobile at present has screw rod horizontal jack, screw rod vertical jack, hydraulic jack etc. It generally includes a base, a bracket, a lifting screw engaged with a nut on the bracket, an operating handle connected to the lifting screw, etc., but when such a jack is used to change tires and repair the car, its lifting is performed by hand (or manual jack). pressure) to complete, so it is extremely laborious and time-consuming to change tires and repairs for cars, especially with the popularization of small family cars and the development of tourism, it is even more difficult to change tires and repairs in the wild and in bad weather trouble. Contents of the invention [0003] The technical problem to be solved by the invention is to provide an electric and manual dual-purpose jack. [0004] The electric and manual dual-purpose jack of the present invention inclu...

Claims

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Application Information

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IPC IPC(8): B66F3/20B66F3/44
Inventor 胡国贤
Owner 胡国贤
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