CN2630223Y

CN2630223Y - Electric-manual integrated two-purpose jack

Info

Publication number: CN2630223Y
Application number: CN 03246924
Authority: CN
Inventors: 张文; 邱诚; 陈燕; 夏伟
Original assignee: South China University of Technology SCUT
Current assignee: South China University of Technology SCUT
Priority date: 2003-06-05
Filing date: 2003-06-05
Publication date: 2004-08-04
Anticipated expiration: 2013-06-05

Abstract

The utility model provides an electric-manual integrated two-purpose jack which comprises a rhombus climbing mechanism, a driving mechanism and a transmission mechanism, wherein the transmission mechanism is provided with an electric manual fast switching structure which comprises a drive gear, a spring and a puller bolt. One end of the spring is fixed, and the other end of the spring abuts on one side of the drive gear. The spring is in the state of compression. The puller bolt abuts on the other side of the drive gear. The utility model is easy to operate and convenient to realize manual or electrically operated fast switchover. The utility model has the advantages of simple structure, small volume, light weight and low cost. When the utility model is in use, the utility model is not limited by field and position, and the utility model can be carried with the automobile as a requisite tool for repairing compact cars. The utility model has broad application range and wide market outlook.

Description

The integrated dual-purpose jack of electric and hand

Technical field

The utility model relates to a kind of jack, and particularly a kind of electric-hand driven two-purpose jack belongs to mechanical maintenance tool in use.

Background technology

Motor Maintenance, the used jacking instrument of maintenance mainly are the automobile jacks now, and automobile mainly contains three classes with jack from the constructional feature branch at present: vertical jack, horizontal jack and scissors-type jack; Though vertical jack technology comparative maturity, when playing top bit and top lifting under sending into car, the operator can not operate at automobile external, cause and use inconvenience, and its top lifting aspect ratio is higher, is not suitable for the very low small passenger car in chassis and uses, and has limited its field of application.Horizontal jack can allow the user operate easily outside car in use, and its heights of roofs is low simultaneously, the operational height height, and ascending velocity is also very fast, has overcome the deficiency that vertical jack exists preferably.But because horizontal jack self structure exists deficiencies such as size is big, the lifting tonnage is lower.Scissors-type jack is divided into two kinds of hydraulic pressure scissors and mechanical scissors: it is good that common fluid pressure type scissors-type jack has a self lubricity, hoisting force is big, be convenient to advantage such as maintenance, but have simultaneously that efficient is low, volume is big, have shortcoming such as safety hazard, and hydraulic jack exists hydraulic oil to leak easily, causes environmental pollution problems; The machinery scissors-type jack then can be stablized, safety, reliably vehicle or weight are lifted, and plays simultaneously that heights of roofs is low, operational height is high, the lifting tonnage is big, compact dimensions, but armstrong's patent scissors-type jack efficient is lower, the operation effort; Motor machine scissors-type jack efficient height, easy to operate, but existing electronic jack generally can only be supported electric operating now, even there have the while to support to be electronic and manually operated, also shifting fork device, complex structure, the manufacturing cost height of adopting of its electric and hand switching construction more.A kind of "; dual-use manual jack " in being 01272622.2 Chinese utility model, the patent No. disclosed, this dual-purpose jack comprises the rhombus lifting body, the shank that it is characterized in that the screw mandrel in the rhombus lifting body is hexagon cylinder or square cylinder, its action principle is that the shank that adopts power-operated wrench to be enclosed within screw mandrel in addition drives jack, or directly stir shank to drive jack with hand power tool, this dual-purpose jack structure is simple, but it needs to be equipped with in addition complex structure, be worth higher power-operated wrench equipment and could realize electric operating, using very inconvenience, is not the integrated jack of electric and hand truly.

Summary of the invention

The purpose of this utility model is to overcome the shortcoming of prior art, provide a kind of simple in structure, volume is little, in light weight, productive costs is low, can realize electronic, the manual fast integrated dual-purpose jack of electric and hand of handoff functionality.

The purpose of this utility model is achieved through the following technical solutions: the integrated dual-purpose jack of this electric and hand comprises rhombus lifting body, driver train, transmission device, it is characterized in that: described transmission device is provided with the quick switching construction of electric and hand.

The quick switching construction of described electric and hand comprises transmission gear, spring, puller bolt, and spring one end is fixed, and other end apical grafting is in a side of transmission gear, and spring is in compressive state; The puller bolt apical grafting is at the opposite side of transmission gear.

Described spring housing is connected on the transmission gear bonded assembly axle, and an end apical grafting is at the wallboard of gear reduction box, and other end apical grafting is in a side of transmission gear, and puller bolt passes gear reduction wall panel and the apical grafting opposite side at intermediate drive gear.

Described puller bolt quantity can be 2～6, be symmetrically distributed in the transmission gear adapter shaft around.

Action principle of the present utility model is: the quick switching construction of electric and hand of this dual-purpose jack be used for easy, switch and adopt manual or electrically operated type of drive apace, be specially: when adopting the motorized motions mode, puller bolt holds out against the transmission gear pressing spring, and the gear mesh that makes transmission gear and other transferring power under the combined action of spring and puller bolt is with the transmission of power of the motor rhombus lifting body to jack; When needs adopt the manual drives mode, unclamp puller bolt, transmission gear is out of gear with other under the effect of recoil of spring power, so just direct manual drives jack; Thereby utilize the quick switching construction of this electric and hand can realize the function of the integrated driving of jack electric and hand easily simultaneously.

The utility model has following advantage and effect with respect to prior art: (1) operation is simple and easy, convenient; This dual-purpose jack adopts DC motor to drive when electronic, power supply can come from automobile itself, electronic switching to only need be unscrewed puller bolt when manual, transmission gear is out of gear with other under the effect of spring restoring force gets final product, so the function that this dual-purpose jack can conveniently be realized manually or electric operating switches fast; (2) this dual-purpose jack structure is simple, and volume is little, and is in light weight, and cost is low, not limited by place and position, and can carry with car as the indispensable instrument of repairing of small passenger car, and field of application is wider, and market outlook are wider.

Description of drawings

Fig. 1 is the structural representation of the integrated dual-purpose jack of the utility model electric and hand.

Fig. 2 is the birds-eye view of the integrated dual-purpose jack of electric and hand shown in Figure 1.

Fig. 3 is the gear transmission scheme drawing of the integrated dual-purpose jack of electric and hand shown in Figure 1.

The specific embodiment

Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.

Embodiment

Fig. 1～Fig. 3 shows concrete structure of the present utility model, and by Fig. 1 and Fig. 2 as seen, the integrated dual-purpose jack of this electric and hand comprises rhombus lifting body, driver train, transmission device, and described transmission device is provided with the quick switching construction of electric and hand.Described rhombus lifting body comprises one by four act arms, comprise going up for two and lift arm 3 and two rhombus crane span structures of lifting arm 11 compositions down, lifting arm 3 on two is connected by bolt 7 with profile of tooth piece 4 respectively, the connection that is meshing with each other of the profile of tooth piece 4 of lifting arm 3 on two, the logical simultaneously bolt 6 of two profile of tooth pieces 4 is connected with anchor plate 5, lift arm 3 on two and lift arm 11 for twice and connect into a rhombus crane span structure by tie bolt 8 and contiguous block 12, lift arm 11 for twice by being bolted on the base 10, the rhombus lifting body also comprises drive screw 9, one end of drive screw 9 is connected with handle frame 13, and the other end is connected with tie bolt 8 by contiguous block 12 with the rhombus crane span structure.

Described transmission device comprises a gear reduction box; The structure of gear reduction box as shown in Figure 3, as seen from Figure 3, gear reduction box includes

wallboard

14,15, main driven wheel 29, intermediate drive gear 31,

dual gear

32,33, miniature gears 34,

axle

25,26,27, puller bolt 17 and spring 18, drive screw 9 passes wallboard 14 and is socketed with axle sleeve 28, drive screw 9 one ends are connected with main driven wheel 29, handle frame 13 is fixed on the main driven wheel 29 by bolt 30, handle frame 13 1 ends stretch out wallboard 15, main driven wheel 29 is connected with a joggle with the intermediate drive gear 31 that is socketed on the axle 27, one end apical grafting of spring 18 is on wallboard 14, other end apical grafting is in a side of intermediate drive gear 31, spring 18 always is in compressive state, puller bolt 17 passes the opposite side of wallboard 15 apical graftings at intermediate drive gear 31, be connected with a joggle with the dual gear 32 that is socketed on the axle 26 simultaneously at intermediate drive gear under the combined action of spring 18 and puller bolt 17 31, dual gear 32 is connected with a joggle with another dual gear 33 that is socketed on the axle 25 simultaneously, dual gear 33 is connected with a joggle with miniature gears 34 simultaneously, the rotating shaft of miniature gears 34 is connected with the rotating shaft of the retarder of driver train 21, is rotated by drive mechanism.

Described driver train comprises a direct current electrical motor 24, a motor reducer 21 and a circuit card 22 as shown in Figure 2; DC machine 24 is captiveed joint with motor reducer 21 by bolt 20, and circuit card 22 is with a limit switch 23, is fixed on the wallboard 14.Whole driver train is covered by a motor outer cover 2.

The action principle of the integrated dual-purpose jack of this electric and hand is: during the electric operating mode, DC machine 24 is by the self-powered driven in rotation of automobile, drive miniature gears 34, dual gear 33, dual gear 32,

intermediate drive gear

31 and 29 rotations of main driven wheel by motor reducer 21 deceleration backs, drive drive screw 9 low speed rotation by the level Four deceleration, thereby make the rhombus crane span

structure lift arm

3,11 steady liftings; When DC machine 24 is just being changeed,

lift arm

3,11 and rise the jack-up vehicle; During DC machine 24 counter-rotatings,

lift arm

3,11 and descend, fall vehicle; The lifting of jack and start-stop only need the operator to operate control capsule the corresponding button can easily to realize; if jack rises or drops to the design-calculated end position and do not press stop button; because the effect of limit switch 23; power supply can cut off automatically; motor stops operating; jack quits work, thereby is protected.

When the needs M/C, unscrew puller bolt 17, when middle transmission gear 31 when not being subjected to the restriction of puller bolt 17, under the effect of the restoring force of spring 18, intermediate drive gear 31 is thrown off the engagement with main driven wheel 29 and dual gear 32 fast, the handle bar that this moment, direct use extended is enclosed within to rotate on the handle frame 13 and can makes drive screw 9 rotations, thereby realize the lifting of

jack act arm

3,11, the clickwise handle bar, lifting

arm

3,11 rises, the left-hand revolution handle bar is lifted

arm

3,11 and is descended.

The utility model can be realized electronic and manually operated quick switching, and lifting is steady, but and safe self-locking, have simple in structure, easy to operate, superior performance, little, in light weight, the low cost and other advantages of volume, easy to utilize.

Claims

1, the integrated dual-purpose jack of a kind of electric and hand comprises rhombus lifting body, driver train, transmission device, it is characterized in that: described transmission device is provided with the quick switching construction of electric and hand.

2, the integrated dual-purpose jack of electric and hand according to claim 1, it is characterized in that: the quick switching construction of described electric and hand comprises transmission gear (31), spring (18), puller bolt (17), spring (18) one ends are fixed, other end apical grafting is in a side of transmission gear (31), and spring (18) is in compressive state; Puller bolt (17) apical grafting is at the opposite side of transmission gear (31).

3, the integrated dual-purpose jack of electric and hand according to claim 2, it is characterized in that: described spring (18) is socketed on transmission gear (31) the bonded assembly axle (27), one end apical grafting is at the wallboard (14) of gear reduction box, other end apical grafting is in a side of transmission gear (31), and puller bolt (17) passes gear reduction wall panel (15) and the apical grafting opposite side in transmission gear (31).

4, the integrated dual-purpose jack of electric and hand according to claim 2 is characterized in that: described puller bolt (17) quantity is 2～6, be symmetrically distributed in transmission gear (31) adapter shaft (27) around.