CN203144011U

CN203144011U - Antiskid jack

Info

Publication number: CN203144011U
Application number: CN 201320101251
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: 2013-08-21
Anticipated expiration: 2023-03-06

Abstract

The utility model discloses an antiskid jack, comprising a first supporting arm, a second supporting arm,a third supporting arm and a fourth supporting arm, wherein a base is arranged at the connecting position of the first supporting arm and the second supporting arm; a supporting disc is arranged at the connecting position of the third supporting arm and the fourth supporting arm; horizontal convex strips I are arranged at the bottom part under the base; longitudinal convex strips II are arranged at the bottom part under the base; and oblique convex strips III are also arranged at the bottom part under the base. Rubber teeth are respectively arranged beside the convex strips I, the convex strips II and the convex strips III. Convex blocks are arranged at the two sides of the convex strips I. The antiskid jack can be prevented from sideslipping.

Description

A kind of anti-skidding jack

Technical field

The utility model belongs to a kind of anti-skidding jack.

Background technology

Jack is that a kind of the top with rigidity lifted part as equipment, the light little weight-lifting equipment of jacking weight in stroke by top bracket or bottom claw.Can be divided into 3 kinds of tooth bar jack, lifting screw and hydraulic jacks by architectural feature.Jack is the simplest weight-lifting equipment of a kind of lifting highly little (less than 1m).It has two kinds of mechanical type and fluid pressure types.The mechanical type jack has rack-and-pinion and spiral two kinds again, because hoisting capacity is little, the operation effort generally only is used for flight-line maintenance work, and is inapplicable in repairing the bridge process.Fluid pressure type jack structure compactness, stable working has self-locking action, so use extensively.Its shortcoming is that lifting is highly limited, and lifting velocity is slow.The kind of car jack can be divided into four kinds of tooth bar jack, lifting screw and hydraulic jack and inflatable jacks.When automobile during at relatively sliding local et out of order, car jack is placed to be easy on the ground to produce and is breakked away, and under the situation that needs this weight of jack-up automobile, it is quite dangerous to take place to break away.Need a kind of jack that can prevent that jack from breakking away.

Summary of the invention

The utility model provides a kind of jack that can prevent that jack from breakking away at the prior art deficiency.

In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals: a kind of anti-skidding jack, comprise first hold-down arm, second hold-down arm, the 3rd hold-down arm, the 4th hold-down arm, described first hold-down arm and the 3rd hold-down arm are flexibly connected by first active connection part, described second hold-down arm and the 4th hold-down arm are flexibly connected by second active connection part, first active connection part and second active connection part are all passed by a screw rod, described first hold-down arm and second hold-down arm support and connection place are provided with base, described the 3rd hold-down arm and the 4th hold-down arm junction are provided with pallet, described base lower bottom part is provided with a horizontal raised line, described base lower bottom part is provided with No. two raised lines longitudinally, and described base lower bottom part also is provided with No. three oblique raised lines.Laterally, vertical, the oblique raised line that is crisscross arranged, can actv. prevent that jack base from breakking away.

In the technique scheme, a described raised line, No. two raised lines and No. three raised line next doors are provided with the rubber tooth.The rubber tooth can prevent that also jack base from breakking away.

In the technique scheme, described raised line both sides are provided with projection.Projection can prevent that also jack base from breakking away.

The utility model compared with prior art has following beneficial effect: the utility model provides a kind of jack that can prevent that jack from breakking away at the prior art deficiency.Laterally, vertical, the oblique raised line that is crisscross arranged, can actv. prevent that jack base from breakking away.Add the effect of rubber tooth and projection, jack is prevented from breakking away to play an effective role in the control.

Description of drawings

Fig. 1 is scissors jack scheme drawing.

Fig. 2 does not add iron block utility model scheme drawing among the embodiment 1.

Fig. 3 adds iron block utility model scheme drawing among the embodiment 1.

Fig. 4 is base bottom surface scheme drawing among the embodiment 2.

Fig. 5 is utility model scheme drawing among the embodiment 2.

Fig. 6 is base bottom surface scheme drawing among the embodiment 3 (the filling lines on raised line, No. two raised lines and No. three raised lines is just in order to play clear signal effect).

The specific embodiment

Below in conjunction with accompanying drawing and the specific embodiment the utility model is described in further detail: embodiment 1: referring to Fig. 1 ~ 3, a kind of jack that is fixed in the snowfield, comprise first hold-down arm 1, second hold-down arm 2, the 3rd hold-down arm 3, the 4th hold-down arm 4, described first hold-down arm 1 and the 3rd hold-down arm 3 are flexibly connected by first active connection part 17, described second hold-down arm 2 and the 4th hold-down arm 4 are flexibly connected by second active connection part 18, first active connection part 17 and second active connection part 18 are all passed by a screw rod 7, described first hold-down

arm

1 and 2 support and connection place of second hold-down arm are provided with base 5, and described the 3rd hold-down arm 3 and the 4th hold-down arm 4 junctions are provided with pallet 6.

Offer groove 8 on the described base 5, in the described groove 8 heater strip 9 is arranged fixedly, described heater strip 9 connects electric wire 10, described electric wire 10 other ends are provided with plug, this plug and automobile cigarette lighter are complementary, can directly be inserted on the automobile cigarette lighter and connect power supply, power supply be applied on the heater strip 9, and heater strip 9 produces heats.Heater strip 9 is placed in the groove 8, can protect heater strip 9, prolongs 9 service lifes of heater strip.The heat that heater strip 9 produces forwards base to 5 times, and base 5 development of heats are with following snow or ice-out, makes the jack can normally use in the thicker or icing snowfield of snow drift, and electric wire 10 plugs can directly be inserted on the Cigarette lighter, makes things convenient for power taking.

Described heater strip 9 is fixed in the groove 8 by iron block 11, and described iron block 11 is welded on groove 8 limits, prevents that heater strip 9 from dropping accidentally, equally further protected heater strip 9.

All be arranged with the solar heat protection silica gel sheath on described first hold-down arm 1, second hold-down arm 2, the 3rd hold-down arm 3, the 4th hold-down arm 4.After the heating, heat can loose to several hold-down arms, and hand directly contacts can scald hand, and sheathed solar heat protection silica gel sheath prevents the hand scald.

Embodiment 2: compare with embodiment 1, difference is that described jack is the fixed form difference in snowfield, and all the other are all identical.

Referring to Fig. 1, Fig. 4 and Fig. 5, described base 5 downsides offer groove 108 No. two, and 109, No. two stay bearing plates 109 of two No. two stay bearing plates of sliding block joint are perpendicular to base 5 in described No. two grooves 108.

Also be provided with reverse-flighted screw 110, described reverse-flighted screw 110 passes described two No. two stay bearing plates 109 simultaneously, and described reverse-flighted screw 110 comprises two ones 112 of an one 111 of screw rod and screw rods, and the screw thread that one one 111 of described screw rod and screw rod are two ones 112 is opposite.The reverse-flighted screw 110 of two ends opposite threads as long as at one end rotate, just can inwardly shrink two No. two stay bearing plates 109 simultaneously, uses convenient and time-saving.

Described reverse-flighted screw 110 middle parts there are not screw thread, and when preventing from supporting 109 plates near position, reverse-flighted screw 110 middle No. two, the screw thread of two different directions blocks No. two stay bearing plates 109.

Described reverse-flighted screw 110 two ends are provided with handle 114.Handle 114 easier exerting all one's strength after holding up is set, and both sides all arrange being accustomed to left-handed and being accustomed to right-handed all very convenient.

During use, rotate 110, two No. two stay bearing plates of reverse-flighted screw 109 by handle 114 and inwardly shrink simultaneously, the crushing by snow with between two No. two stay bearing plates 109 slowly is tight, and what can become after crushing by snow is tight is very solid, can fix jack.For there not being the space of snow, jack can held stationary be supported on while two No. two stay bearing plate 109 outer side edges, also reserved the space and made things convenient for jack normally to use.

Embodiment 3: compare with embodiment 1, difference is that described jack is the fixed form difference in snowfield, and all the other are all identical.

Referring to Fig. 1 and Fig. 6, described base 5 lower bottom parts are provided with a horizontal raised line 210, one side laterally be the rectilinear direction of growing with base 5 that parallels.Described base 5 lower bottom parts are provided with No. two raised lines 211 longitudinally, one side vertically be the rectilinear direction that parallels of lacking with base 5.Described base 5 lower bottom parts also are provided with No. three oblique raised lines 212.A raised line 210, No. two raised lines 211 and No. three raised lines 212 intersect mutually, mutually combine.Laterally, vertical, the oblique raised line that is crisscross arranged, can actv. prevent that jack base 5 from breakking away.

A described raised line 210, No. two raised lines 211 and No. three raised line 212 next doors are provided with the rubber tooth.The rubber tooth can increase the friction force on base 5 and ground, and the effect of playing is exactly to prevent that base 5 from breakking away.

Described raised line 210 both sides are provided with projection 213.The projection 213 that is separated from each other has one by one increased the friction force of base 5 with ground, prevents that base 5 from breakking away.

Claims

1. anti-skidding jack, comprise first hold-down arm (1), second hold-down arm (2), the 3rd hold-down arm (3), the 4th hold-down arm (4), described first hold-down arm (1) is flexibly connected by first active connection part (17) with the 3rd hold-down arm (3), described second hold-down arm (2) is flexibly connected by second active connection part (18) with the 4th hold-down arm (4), first active connection part (17) is all passed by a screw rod (7) with second active connection part (18), described first hold-down arm (1) is provided with base (5) with second hold-down arm (2) support and connection place, described the 3rd hold-down arm (3) is provided with pallet (6) with the 4th hold-down arm (4) junction, it is characterized in that: described base (5) lower bottom part is provided with a horizontal raised line (210), described base (5) lower bottom part is provided with No. two raised lines (211) longitudinally, and described base (5) lower bottom part also is provided with oblique No. three raised lines (212).

2. a kind of anti-skidding jack as claimed in claim 1 is characterized in that: be provided with the rubber tooth by a described raised line (210), No. two raised lines (211) and No. three raised lines (212).

3. a kind of anti-skidding jack as claimed in claim 1, it is characterized in that: a described raised line (210) both sides are provided with projection (213).