CN103121650B

CN103121650B - Jack

Info

Publication number: CN103121650B
Application number: CN201310070443.3A
Authority: CN
Inventors: 叶培玉
Original assignee: NINGBO TIANYI SHAFT CO Ltd
Current assignee: NINGBO TIANYI SHAFT CO Ltd
Priority date: 2013-03-06
Filing date: 2013-03-06
Publication date: 2015-10-07
Anticipated expiration: 2033-03-06
Also published as: CN103121650A

Abstract

The invention discloses jack, comprise base, described base offers at least three No. five through holes, described No. five through holes are all fixed with No. four nuts, be provided with No. four bolts to be connected with No. four nut threads by described No. five through holes, described pallet offers at least three No. six through holes, described 3rd hold-down arm offers No. seven through holes, described 4th hold-down arm offers No. eight through holes, described 3rd hold-down arm is bolted on described pallet by No. seven through holes and No. six through holes by No. five, described 4th hold-down arm is bolted on described pallet by No. six by No. eight through holes and No. six through holes.The present invention can on the slope, or on rough slope, pulsation-free uses jack to support automobile.

Description

Jack

Technical field

The invention belongs to jack.

Background technology

Jack is that part is lifted as equipment, the light little weight-lifting equipment of jacking weight in stroke by top bracket or bottom claw in one rigidity top.Rack-jack, lifting screw and hydraulic jack 3 kinds can be divided into by architectural feature.Jack is the simplest weight-lifting equipment of a kind of lifting highly little (being less than 1m).It has mechanical type and fluid pressure type two kinds.Mechanical jack has again rack-and-pinion and spiral two kinds, because hoisting capacity is little, operation effort, general only for flight-line maintenance work, repair in bridge process inapplicable.Hydraulic jack compact conformation, stable working, has self-locking action, therefore uses extensively.Its shortcoming is lifting limited height, and lifting velocity is slow.The kind of car jack can be divided into rack-jack, lifting screw and hydraulic jack and Inflated jack four kinds.When automobile on the slope et out of order time, when conventional car jack is put and is used on the slope, often can the overturning due to terrestrial attraction effect, need to hold up jack, shake jack rising on one side, such mode quite bothers, and not easy to operate.On rough slope, it is more inconvenient to operate, and after jack rises, jack remains and heads on automobile sideling, does like this and not only heads on loosely, more have potential safety hazard.Need a kind of easily, safety use on the slope, especially easily, safety the jack used on rough slope.

Summary of the invention

The present invention is directed to prior art deficiency, the jack of support automobile that can be stable is on the slope provided.

In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals: jack, described jack comprises the first hold-down arm, second hold-down arm, 3rd hold-down arm, 4th hold-down arm, described first hold-down arm and the second hold-down arm support and connection place are provided with base, described 3rd hold-down arm and the 4th hold-down arm junction are provided with pallet, described base offers at least three No. five through holes, described No. five through holes are positioned at base edge position, described No. five through holes are all fixed with No. four nuts, be provided with No. four bolts to be connected with No. four nut threads by described No. five through holes, described No. four bolts are positioned at and have No. nine through holes away from one end, ground end opens, described No. nine through holes are equipped with latch, described pallet offers at least three No. six through holes, described 3rd hold-down arm offers No. seven through holes, described 4th hold-down arm offers No. eight through holes, described 3rd hold-down arm is bolted on described pallet by No. seven through holes and No. six through holes by No. five, described 4th hold-down arm is bolted on described pallet by No. six by No. eight through holes and No. six through holes.

The present invention compared with prior art, has following beneficial effect: the present invention can use on the slope, and when ensureing to use on the slope, jack is overturning-free.Jack can be placed by pulsation-free in rough slope, avoid conventional jack to be directly placed on the not steady of uneven road surface top bottom-disc.Because vehicle body is tilt on the slope, pallet arranges multiple through hole, and tilt tray is carried out in the installation site by movable support arm, and ensure the maximization of pallet and automobile contact surface, jack-up is come more steady.No. four bolts wear latch, avoid coming off of No. four bolts.

Accompanying drawing explanation

Fig. 1 is scissor-like jack schematic diagram.

Fig. 2 is that in embodiment 1, device and jack place schematic diagram on the slope.

Fig. 3 is stay bearing plate and strut bar combination schematic diagram in embodiment 1.

Fig. 4 is that in embodiment 1, the outer bar of strut bar is separated rear schematic diagram separately with interior bar.

Fig. 5 is jack side schematic view in embodiment 1.

Fig. 6 is stay bearing plate schematic top plan view in embodiment 1 (for block fixes jack and block release jack schematic diagram in figure).

Fig. 7 is that in embodiment 2, device and jack place schematic diagram on the slope.

Fig. 8 is jack side schematic view in embodiment 2.

Fig. 9 is base elevational schematic view in embodiment 2.

Figure 10 is that in embodiment 2, No. four bolts, bases are separated schematic diagram with No. four nuts.

Figure 11 is that in embodiment 2, No. four bolts are separated schematic diagram with latch.

Detailed description of the invention

Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail: see Fig. 1 ~ 6, jack, described jack comprises the first hold-down arm 1, second hold-down arm 2, 3rd hold-down arm 3, 4th hold-down arm 4, described first hold-down arm 1 is flexibly connected by the first active connection part 12 with the 3rd hold-down arm 3, described second hold-down arm 2 is flexibly connected by the second active connection part 13 with the 4th hold-down arm 4, first active connection part 12 is flexibly connected 13 and is all passed by a screw rod 14 with second, described first hold-down arm 1 and the second hold-down arm 2 junction are provided with base 5, described 3rd hold-down arm 3 and the 4th hold-down arm 4 junction are provided with pallet 6.

Also comprise stay bearing plate 101, described stay bearing plate 101 is provided with the groove 102 matched with described base 5, base 5 can put into groove 102 completely, and can easily take out, hinged at least two strut bars 103 of described stay bearing plate 101, described strut bar 103 can be hinged on the ipsilateral of stay bearing plate 101, also can be adjacent two sides, also can be relative two sides, also or be directly installed in stay bearing plate 101, all can reach the effect of needs.Described strut bar 103 comprises outer bar 104 and interior bar 105, on described outer bar 104 uniform from top to bottom and be on same straight line, be provided with at least two one number service holes 106, ten one number service holes 106 generally can be set, most positions that generally needs regulate can be adapted to.Described interior bar 105 top is provided with No. two through holes 107, interior bar 105 top is away from that one end, ground, in on described No. two through holes 107, bar 105 internal fixtion has nut, and described interior bar 105 and outer bar 104 are connected with nut thread and fix through one number service hole 106 with No. two through holes 107 by bolt.When needs adjusting position, rotate bolt, interior bar 105 is moved up and down and decides to extend or shorten, after choosing suitable position, bolts and nuts are threaded, interior bar 105 is fixed together with outer bar 104.

Described pallet 6 offers at least three through holes 108, multiple through hole 108 is evenly diffused out to both sides by the through hole 108 of pallet 6 center position, described 3rd hold-down arm 3 offers No. three through holes 109, described 4th hold-down arm 4 offers No. four through holes 110, described 3rd hold-down arm 3 by No. three through holes 109 with through hole 108 by being detachably fixed on described pallet 6, described 4th hold-down arm 4 by No. four through holes 110 with through hole 108 by being detachably fixed on described pallet 6.When 3rd hold-down arm 3 and the 4th hold-down arm 4 are fixed on the through hole 108 of position, pallet 6 middle simultaneously, pallet 6 keeps flat.When needing pallet 6 to tilt, only need one of them hold-down arm to separate from the through hole 108 of position, pallet 6 middle, and be fixed on other through hole 108, now, one end is just up carried on naturally, and pallet tilts naturally.By converting the fixed position of the 3rd hold-down arm 3 or the 4th hold-down arm 4 to adjust the degree of dip of pallet 6.

During use, first adjust the height of strut bar 103, on rough inclined-plane, can be highly slightly high according to the local strut bar 103 that incline position is low, the local strut bar 103 that incline position is high is highly slightly low, carrys out gentle support jack.Then by stay bearing plate 101 away from strut bar 103 one side, or this face of stay bearing plate 101 is a bit placed on slope, point three points that two strut bars 103 add on stay bearing plate 101 form triangles thus fixed position.Jack is put in groove 102 that described stay bearing plate 101 matches, carry out the more stable base 5 fixing jack by magnet or rotary block 111.Adjust the position that the 3rd hold-down arm 3 or the 4th hold-down arm 4 are fixing on pallet 6, pallet 6 is tilted, makes pallet 6 parallel with automobile, area of contact maximization, pulsation-free supports automobile.

After end, take out jack, directly extracted out from automobile bottom by strut bar 103, stay bearing plate 101, because hinged, due to terrestrial attraction effect, down overturns, laminating strut bar 103.

Embodiment 2: compared with embodiment 1, difference is, described jack on the slope supporting way is different, and all the other are all identical.

See Fig. 1, Fig. 7-11, jack, comprise base, described base 5 offers at least three No. five through holes 201, described No. five through holes 201 are all fixed with No. four nuts 202, are provided with No. four bolts 203, described No. four bolts 203 are by described No. five through holes 201, and be threaded with No. four nuts 202, have three No. four bolts 203 at least.No. four bolts 203 can up-and-down movement, the height that adjustment jack needs.

Described pallet 6 offers at least three No. six through holes 208, multiple No. six through holes 208 are evenly diffused out to both sides by No. six through holes 208 of pallet 6 center position, described 3rd hold-down arm 3 offers No. seven through holes 209, described 4th hold-down arm 4 offers No. eight through holes 210, described 3rd hold-down arm 3 is detachably fixed on described pallet 6 by No. seven through holes 209 and No. six through holes 208, and described 4th hold-down arm 4 is detachably fixed on described pallet 6 by No. eight through holes 210 and No. six through holes 208.When 3rd hold-down arm 3 and the 4th hold-down arm 4 are fixed on No. six through holes 208 of position, pallet 6 middle simultaneously, pallet 6 keeps flat.When needing pallet 6 to tilt, only need one of them hold-down arm to separate from No. six through holes 208 of position, pallet 6 middle, and be fixed on other No. six through holes 208, now, one end is just up carried on naturally, and pallet 6 tilts naturally.By converting the fixed position of the 3rd hold-down arm 3 or the 4th hold-down arm 4 to adjust the degree of dip of pallet 6.

During use, first adjust the height of No. four bolts 203, on rough inclined-plane, can be highly slightly high according to No. four, the place bolt 203 that incline position is low, No. four, the place bolt 203 that incline position is high is highly slightly low, carrys out gentle support jack.Adjust the position that the 3rd hold-down arm 3 or the 4th hold-down arm 4 are fixing on pallet 6, pallet 6 is tilted, makes pallet 6 parallel with automobile, area of contact maximization, pulsation-free supports automobile.

Claims

1. jack, described jack comprises the first hold-down arm (1), second hold-down arm (2), 3rd hold-down arm (3), 4th hold-down arm (4), described first hold-down arm (1) and the second hold-down arm (2) support and connection place are provided with base (5), described 3rd hold-down arm (3) and the 4th hold-down arm (4) junction are provided with pallet (6), it is characterized in that: described base (5) offers at least three No. five through holes (201), described No. five through holes (210) are positioned at base (5) boundary position, described No. five through holes (201) are all fixed with No. four nuts (202), be provided with No. four bolts (203) to be threaded with No. four nuts (202) by described No. five through holes (201), described No. four bolts (203) are positioned at and have No. nine through holes (204) away from one end, ground end opens, described No. nine through holes (204) are equipped with latch (205), described pallet (6) offers at least three No. six through holes (208), described 3rd hold-down arm (3) offers No. seven through holes (209), described 4th hold-down arm (4) offers No. eight through holes (210), described 3rd hold-down arm (3) by No. seven through holes (209) and No. six through holes (208) by being detachably fixed on described pallet (6), described 4th hold-down arm (4) by No. eight through holes (210) and No. six through holes (208) by being detachably fixed on described pallet (6).