CN106517025A

CN106517025A - Scissor jack

Info

Publication number: CN106517025A
Application number: CN201611237865.5A
Authority: CN
Inventors: 黄超; 王晓阳
Original assignee: Changshu Tongrun Auto Accessory Co Ltd
Current assignee: Changshu Tongrun Auto Accessory Co Ltd
Priority date: 2016-12-28
Filing date: 2016-12-28
Publication date: 2017-03-22

Abstract

The invention discloses a scissor jack. The scissor jack comprises a base assembly and a supporting arm assembly. The base assembly comprises an upper base and a lower base which are overlaid up and down. The upper base and the lower base are connected through a connection piece. The lower base can rotate around the connection piece relative to the upper base. The supporting arm assembly is rotationally installed on the upper base. When the scissor jack provided by the invention is in a using state, the lower base and the upper base are in a cross shape, not only is the jacking process more stable, the contact area of the scissor jack and the ground is increased, and the local ground structure is not prone to being damaged.

Description

Scissor-like jack

Technical field

A kind of the present invention relates to automobile equipment technical field, more particularly to scissor-like jack.

Background technology

Scissor-like jack is a kind of common crane gear, is mainly used in the jack-up of the automobile of little tonnage, such as car Deng.Only there is support force in a direction in existing scissor-like jack, base stress surface less when in use, structural stability compared with Difference；Meanwhile, because stress surface is little, also easily normal road surface is caused to damage during jack-up.

The content of the invention

In order to overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of scissor-like jack, which can solve top Stability difference and the little problem of lifting surface area during rising.

The purpose of the present invention employs the following technical solutions realization：

A kind of scissor-like jack, including a base assembly and a supporting arm assembly, the base assembly includes being stacked up and down A top base and a bottom base, the top base is connected by a connection piece with bottom base, and the bottom base can be around described Connector is rotated relative to the top base, and the supporting arm assembly is rotated and is installed on the top base.

Preferably, the top base includes a upper plate, and the middle part of the upper plate is recessed to form a groove upwards, described One first connecting hole is provided with groove.

Preferably, the bottom base includes a length with the upper plate identical lower shoe, the width of the lower shoe More than the width of the upper plate, the lower shoe is provided with one second connecting hole relative with first connecting hole, described Connector is arranged in first connecting hole and the second connecting hole.

Preferably, the base assembly is also including an elastic component for being sheathed on the connector, one end of the elastic component Contradict with the connector, the other end is contradicted with the top base, and the bottom base is around the relatively described top base of the connector Turn to an angle, and move along the depth direction of the groove in the presence of the elastic component so that the bottom base Lower surface is concordant with the lower surface of the top base.

Preferably, the elastic component is a spring.

Preferably, the top base also includes two epipleurals, and two epipleural is individually fixed in the phase of the upper plate To both sides, two epipleural is provided with a hinge hole, and the supporting arm assembly is cut with scissors with the top base by the hinge hole Connect.

Preferably, the bottom base also includes two lower side panels, and two lower side panel is individually fixed in the phase of the lower shoe To both sides, two lower side panel respectively positioned at second connecting hole left and right two ends, and length direction leave a width with The upper plate width identical gap.

Preferably, the lower surface of the groove is provided with one raised, and the upper surface of the lower shoe is provided with one with the projection The stopper slot of matching, the lower shoe when vertical with the upper plate projection be contained in the stopper slot.

Preferably, the connector is a latch, and the latch top is provided with a through hole.

Preferably, the base assembly also includes a fixture, and the fixture is inserted in the through hole, the fixture For a latch torsion spring.

Compared to existing technology, the beneficial effects of the present invention is：

Scissor-like jack proposed by the present invention increased a bottom base below top base, and the bottom base can be relative The top base rotates an angle simultaneously makes the lower surface of bottom base concordant with the lower surface of top base, make the scissor-like jack from One receiving state is changed to a use state, and in use state, bottom base is in a cross-shaped mode with top base, not only makes jack-up mistake Cheng Gengjia is stable, also add the area contacted with ground, makes local earth construction be difficult to be damaged.

Description of the drawings

Fig. 1 is a three-dimensional exploded view of the scissor-like jack of the present invention.

Axonometric charts of the Fig. 2 for the top base of scissor-like jack shown in Fig. 1.

Axonometric charts of the Fig. 3 for the bottom base of scissor-like jack shown in Fig. 1.

Use state schematic diagrams of the Fig. 4 for scissor-like jack shown in Fig. 1.

Receiving state schematic diagrams of the Fig. 5 for scissor-like jack shown in Fig. 1.

In figure：100th, scissor-like jack；1st, supporting arm assembly；11st, underarm；12nd, upper arm；13rd, jointed shaft；14th, leading screw； 15th, support base；2nd, base assembly；21st, top base；211st, upper plate；212nd, groove；213rd, the first connecting hole；214th, it is raised； 215th, epipleural；216th, hinge hole；22nd, bottom base；221st, lower shoe；222nd, the second connecting hole；223rd, stopper slot；224th, downside Plate；23rd, connector；231st, through hole；24th, elastic component；25th, pad；26th, fixture.

Specific embodiment

Below, with reference to accompanying drawing and specific embodiment, the present invention is described further：

As Figure 1-5, be a preferred embodiment of the present invention scissor-like jack 100, including a supporting arm assembly 1 and Base assembly 2, the supporting arm assembly 1 are rotated and are installed on the base assembly 2.

The supporting arm assembly 1 include a pair of underarms 11, a pair of upper arm 12, a pair of jointed shafts 13, a leading screw 14, and one Support seat 15.One end of each underarm 11 is connected with one end of upper arm described in one 12 by jointed shaft 13 described in, and which is another End is installed on the base assembly 2.The other end of the upper arm 12 is installed on the support base 15, between two jointed shafts 13 Install a leading screw 14.

The base assembly 2 includes a top base 21, a bottom base 22, a connection piece 23, an elastic component 24, a pad 25 And a fixture 26.

The top base 21 includes a upper plate 211, and the middle part of the upper plate 211 is recessed to form a groove 212 upwards, The center of the groove 212 is provided with one first connecting hole 213, and the lower surface of the groove 212 is provided with a downward projection 214.The upper plate fixes an epipleural 215, the epipleural 215 and the upper bottom respectively in the opposite sides of length direction Plate 211 is vertical, and the upper plate 211 is provided with a hinge hole 216, the supporting arm assembly 1 by the hinge hole 216 with it is described Top base 21 is hinged.

The bottom base 22 includes a lower shoe 221, and the lower shoe 221 is located at the underface of the upper plate 211, institute The length for stating lower shoe 221 is equal to the length of the upper plate 211, and the width of the lower shoe 221 is more than the upper plate 211 Width.The lower shoe 221 be provided with one with first connecting hole 213 just to one second connecting hole 222, the lower shoe 221 are additionally provided with one with the raised 214 corresponding stopper slot 223.The lower shoe is solid respectively in the opposite sides of length direction A fixed lower side panel 224, two lower side panel 224 are located at the left and right two ends of second connecting hole 222 respectively, and in length direction A width is left with 211 width identical gap of the upper plate.

The connector 23 is a latch, and the top of the latch is provided with a through hole 231.The elastic component 24 is a bullet Spring, the fixture 25 are a latch torsion spring.

Assembling mode between the top base 21 and bottom base 22 is as follows：

Generally the scissor-like jack 100 is in receiving state, and now the bottom base 22 is located at the upper base The underface of seat 21, the upper surface portion of the lower shoe 221 are pasted and in the lower surface of the upper plate 211, the lower side panel 224 inner surface fits in the outer surface of the epipleural 215.The latch connects through first connecting hole 213 and second Hole 222 is connect, the spring is placed on into the latch, then the pad 25 is placed on into the latch, then press the pad 25 The spring-compressed is made until exposing the through hole 231 of the latch upper end, the latch torsion spring is inserted into the through hole 231 finally It is interior, so as to the top base 21, bottom base 22, spring and 25 in the vertical direction of pad are fixed.

Using front, the bottom base 22 is rotated clockwise 90 degree makes the bottom base 22 vertical with top base 21, Now the edge of described two lower side panels 224 is contradicted with described two epipleurals 215 respectively makes the bottom base 22 turn again It is dynamic.The top of the latch is subject to spring elastic force upwards and drives, and makes the bottom base 22 It is contained in the groove 212, now the lower surface of the lower shoe 221 is concordant with the lower surface of the upper plate 211, described Raised 214 fairly fall in the stopper slot 223, prevent the bottom base 22 from rotating relative to the top base 21, make whole base The lifting vehicle that can be more stable in a cross-shaped mode of holder assembly 2.Additionally, whole base assembly 2 is increased with the contact area on ground Big, the stress on local ground reduces, it is not easy to damage.

After use, the bottom base 22 is pulled downward on, make described raised 214 to leave the stopper slot 223, then negative side To rotate the bottom base 22 until the inner surface of the lower side panel 224 fit in the outer surface of the epipleural 215 and cannot Be rotated further, now the spring bottom base 22 is had one upwards pulling force make its laminating described top base 21 without light Easily loosen.Now the scissor-like jack 100 is in receiving state, basically identical with general scissor-like jack, will not be extra Take up room, convenient for collecting and use.

It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various It is corresponding to change and deformation, and all these change and deformation should all belong to the protection domain of the claims in the present invention Within.

Claims

1. a kind of scissor-like jack, including a base assembly and a supporting arm assembly, it is characterised in that：The base assembly includes The top base being stacked up and down and a bottom base, the top base are connected by a connection piece with bottom base, the bottom base energy Enough to rotate relative to the top base around the connector, the supporting arm assembly is rotated and is installed on the top base.

2. scissor-like jack as claimed in claim 1, it is characterised in that：The top base includes a upper plate, the upper bottom The middle part of plate is recessed to form a groove upwards, is provided with one first connecting hole in the groove.

3. scissor-like jack as claimed in claim 2, it is characterised in that：The bottom base includes a length with the upper plate Identical lower shoe, the width of the lower shoe are more than the width of the upper plate, and the lower shoe is provided with one with described first One second relative connecting hole of connecting hole, the connector are arranged in first connecting hole and the second connecting hole.

4. scissor-like jack as claimed in claim 3, it is characterised in that：The base assembly is also sheathed on the company including one The elastic component of fitting, one end of the elastic component are contradicted with the connector, and the other end is contradicted with the top base, the lower base Seat turns to an angle, and the depth in the presence of the elastic component along the groove around the relatively described top base of the connector Degree is moved so that the lower surface of the bottom base is concordant with the lower surface of the top base on direction.

5. scissor-like jack as claimed in claim 4, it is characterised in that：The elastic component is a spring.

6. scissor-like jack as claimed in claim 4, it is characterised in that：The top base also include two epipleurals, described two Epipleural is individually fixed in the opposite sides of the upper plate, and two epipleural is provided with a hinge hole, the support arm group Part is hinged with the top base by the hinge hole.

7. scissor-like jack as claimed in claim 4, it is characterised in that：The bottom base also include two lower side panels, described two Lower side panel is individually fixed in the opposite sides of the lower shoe, and two lower side panel is respectively positioned at the left and right of second connecting hole Two ends, and a width is left with the upper plate width identical gap in length direction.

8. scissor-like jack as claimed in claim 4, it is characterised in that：The lower surface of the groove is provided with one raised, described The upper surface of lower shoe is provided with a stopper slot matched with the projection, and the lower shoe is described convex when vertical with the upper plate Rise and be contained in the stopper slot.

9. scissor-like jack as claimed in claim 1, it is characterised in that：The connector be a latch, the latch top It is provided with a through hole.

10. scissor-like jack as claimed in claim 9, it is characterised in that：The base assembly also includes a fixture, described Fixture is inserted in the through hole, and the fixture is a latch torsion spring.