CN103121644A

CN103121644A - Lifting jack fixed in snowfield

Info

Publication number: CN103121644A
Application number: CN2013100704221A
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: 2013-05-29
Anticipated expiration: 2033-03-06
Also published as: CN103121644B

Abstract

The invention discloses a lifting jack fixed in a snowfield. The lifting jack fixed in the snowfield comprises a first supporting arm, a second supporting arm, a third supporting arm and a fourth supporting arm. A base is arranged on the position where the first supporting arm is connected with the second supporting arm; a tray is arranged on the position where the third supporting arm is connected with the fourth supporting arm; a second groove is formed on the lower lateral side of the base, two second supporting plates are connected in the second groove in a sliding mode, further, double-direction screws are arranged on the second groove, simultaneously penetrate through the two supporting plates, and comprise a screw first part and a screw second part, wherein threads of the screw first rod and threads of the screw second rod are reverse. The lifting jack can be fixedly supported in a snow drift, and can be normally and safely used.

Description

Be fixed on the jack in snowfield

Technical field

The invention belongs to the jack that is fixed in snowfield.

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 rack-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.Mechanical jack has again rack-and-pinion and spiral two kinds, and 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.The fluid pressure type jack structure is compact, and stable working has self-locking action, therefore 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 rack-jack, lifting screw and hydraulic jack and Inflated jacks.When automobile in snowfield during et out of order, under the very thick environment of north snow, car jack is placed in snowfield up to one's neck in snow drift, and jack can not be fixed in snow drift, jack skew or can't the jack-up automobile can be caused during use, also just car jack can't be normally used.Need to a kind ofly can stablize fixed pedestal in snow drift, the jack that can normally use safely.

Summary of the invention

The present invention is directed to the prior art deficiency, provide and to stablize fixed pedestal in snow drift, the jack that can normally use safely.

in order to solve the problems of the technologies described above, the present invention is solved by following technical proposals: be fixed on the jack in snowfield, comprise the first hold-down arm, the second hold-down arm, the 3rd hold-down arm, the 4th hold-down arm, described the first hold-down arm and the 3rd hold-down arm are flexibly connected by the first active connection part, described the second hold-down arm and the 4th hold-down arm are flexibly connected by the second active connection part, the first active connection part and the second active connection part are all passed by a screw rod, described the first hold-down arm and the 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 downside offers groove No. two, two No. two stay bearing plates of sliding block joint in described No. two grooves, also be provided with reverse-flighted screw, described reverse-flighted screw passes described two No. two stay bearing plates simultaneously, described reverse-flighted screw comprises two ones of one one of screw rod and screw rods, the screw thread that one one of described screw rod and screw rod are two ones is opposite.The reverse-flighted screw of two ends opposite threads as long as at one end rotate, just can inwardly shrink two stay bearing plates simultaneously, and the prize crushing by snow is tight, and what can become after crushing by snow is tight is very solid, can fix jack, uses also convenient and time-saving.The stay bearing plate of sliding block joint, conveniently moving.

In technique scheme, described reverse-flighted screw middle part there is not screw thread, and when preventing No. two stay bearing plates near position, reverse-flighted screw middle, the screw thread of two different directions blocks No. two stay bearing plates.

In technique scheme, described reverse-flighted screw two ends are provided with handle.Handle is set more easily exerts all one's strength after holding up, both sides all arrange being accustomed to left-handed and being accustomed to right-handed all very convenient.

The present invention compared with prior art has following beneficial effect: the present invention is directed to the prior art deficiency, provide and can stablize fixed pedestal in snow drift, the jack that can normally use safely.The reverse-flighted screw of two ends opposite threads as long as at one end rotate, just can inwardly shrink two stay bearing plates simultaneously, uses convenient and time-saving.The stay bearing plate of sliding block joint, conveniently moving.Described reverse-flighted screw middle part there is not screw thread, and when preventing No. two stay bearing plates near position, reverse-flighted screw middle, the screw thread of two different directions blocks No. two stay bearing plates.Handle is set more easily exerts all one's strength after holding up, both sides all arrange being accustomed to left-handed and being accustomed to right-handed all very convenient.

Description of drawings

Fig. 1 is the scissor-like jack schematic diagram.

Fig. 2 does not add iron block invention schematic diagram in embodiment 1.

Fig. 3 adds iron block invention schematic diagram in embodiment 1.

Fig. 4 is base bottom surface schematic diagram in embodiment 2.

Fig. 5 is invention schematic diagram in embodiment 2.

Fig. 6 is base bottom surface schematic diagram in 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 present invention is described in further detail: embodiment 1: referring to Fig. 1 ~ 3, a kind of jack that is fixed in snowfield, comprise the first hold-down arm 1, the second hold-down arm 2, the 3rd hold-down arm 3, the 4th hold-down arm 4, described the first hold-down arm 1 and the 3rd hold-down arm 3 are flexibly connected by the first active connection part 17, described the second hold-down arm 2 and the 4th hold-down arm 4 are flexibly connected by the second active connection part 18, the first active connection part 17 and the second active connection part 18 are all passed by a screw rod 7, described the first hold-down arm 1 and the second hold-down arm 2 support and connection place are provided with base 5, described the 3rd hold-down arm 3 and the 4th hold-down arm 4 junctions are provided with pallet 6.

Offer groove 8 on described base 5, be fixed with heater strip 9 in described groove 8, 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 automobile cigarette lighter and switch on power, power supply be applied on heater strip 9, and heater strip 9 produces heat.Heater strip 9 is placed in groove 8, can protect heater strip 9, extends 9 service lifes of heater strip.The heat that heater strip 9 produces forwards base to 5 times, and base 5 evolutions of heat 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 Cigarette lighter, facilitates power taking.

Described heater strip 9 is fixed in 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 the first hold-down arm 1, the second hold-down arm 2, the 3rd hold-down arm 3, the 4th hold-down arm 4.After heating, heat can fall apart 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, described jack fixed form in snowfield is different, 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 the interior sliding block joint of described No. two grooves 108 are perpendicular to base 5.

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 reverse-flighted screw 110 position, 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 is set more easily exerts all one's strength after holding up, 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.Be the space without snow on while two No. two stay bearing plate 109 outer side edges, so not only make jack can stablize fixed pedestal, also reserved the space and facilitated jack normally to use.

Embodiment 3: compare with embodiment 1, difference is, described jack fixed form in snowfield is different, 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 that parallel long with base 5.Described base 5 lower bottom parts are provided with No. two raised lines 211 longitudinally, one side vertically be the rectilinear direction that parallel short 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 sides are provided with rubber teeth.Rubber teeth 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. be fixed on the jack in snowfield, comprise the first hold-down arm (1), the second hold-down arm (2), the 3rd hold-down arm (3), the 4th hold-down arm (4), described the first hold-down arm (1) is flexibly connected by the first active connection part (17) with the 3rd hold-down arm (3), described the second hold-down arm (2) is flexibly connected by the second active connection part (18) with the 4th hold-down arm (4), the first active connection part (17) is all passed by a screw rod (7) with the second active connection part (18), described the first hold-down arm (1) is provided with base (5) with the 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) downside offers No. two grooves (108), interior two No. two stay bearing plates of sliding block joint of described No. two grooves (108) (109), also be provided with reverse-flighted screw (110), described reverse-flighted screw (110) passes described two No. two stay bearing plates (109) simultaneously, described reverse-flighted screw (110) comprises screw rod (111) and two ones of screw rods (112), the screw thread of described screw rod one one (111) and screw rod two ones (112) is opposite.

2. the jack that is fixed in snowfield as claimed in claim 1 is characterized in that: described reverse-flighted screw (110) middle part there is not screw thread.

3. the jack that is fixed in snowfield as claimed in claim 1 is characterized in that: described reverse-flighted screw (110) two ends are provided with handle (114).