CN214607454U

CN214607454U - Semitrailer supporting leg

Info

Publication number: CN214607454U
Application number: CN202120007962.5U
Authority: CN
Inventors: 不公告发明人
Original assignee: Linyi Chengtong Trailer Manufacturing Co ltd
Current assignee: LINYI CHANGRONG PRINTING EQUIPMENT Co.,Ltd.
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-11-05
Anticipated expiration: 2031-01-05

Abstract

The utility model belongs to the technical field of semitrailer landing leg technique and specifically relates to a semitrailer landing leg, including two support plates, two support plates are arranged at intervals, the bottom of two support plates all is equipped with the pneumatic cylinder, the top of the pneumatic cylinder is fixedly installed at the bottom of the support plate, be equipped with the median plate between two support plates, the median plate both ends are respectively fixedly connected at the avris of support plate, the median plate top is equipped with focus adjustment mechanism, focus adjustment mechanism includes the slide, the slide both sides upper end is all fixedly installed with the curb plate, equal threaded connection has the construction bolt on the curb plate, the median plate top center department is fixedly installed with the slider, the slider slides and sets up in the slide, both sides have all seted up the draw-in groove in the slide, the slider both sides are all fixedly installed with the fixture block, the fixture block of both sides slides respectively and sets up in the draw-in groove of both sides; the sliding block moves in the slide way through the moving middle plate before the device works, so that the position of the hydraulic cylinder is adjusted according to actual conditions.

Description

Semitrailer supporting leg

Technical Field

The utility model relates to a semitrailer landing leg technical field especially relates to a semitrailer landing leg.

Background

The semitrailer is a transportation tool which is widely applied in the modern transportation industry, when the semitrailer runs, the front end of the semitrailer can be connected with a tractor to be supported and dragged by the tractor, when the semitrailer does not run, the front end of the semitrailer can be unhooked from the tractor, and in order to support the front end of the semitrailer after being dragged, the bottom of the front end of the semitrailer is provided with a supporting device. These support devices are generally retracted when the semitrailer is in motion, so as to reliably avoid the legs from contacting the ground, prevent the induction of safety, and assist in supporting the semitrailer during towing or repair; the existing semitrailer supporting device utilizes a hydraulic supporting principle to realize semitrailer supporting through a hydraulic driving supporting rod, but when a semitrailer carries cargo, cargo is filled in a semitrailer hopper to cause the gravity center of the semitrailer to change, so that the position of the semitrailer supporting device required in actual use can be flexibly adjusted according to the gravity center change of the semitrailer, and the semitrailer supporting leg is provided for the purpose.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the position of the semitrailer supporting device in the prior art can not be flexibly adjusted according to the change of the center of gravity of the semitrailer, and providing a semitrailer supporting leg.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a semitrailer landing leg is designed, and comprises two carrier plates, wherein the two carrier plates are arranged at intervals, hydraulic cylinders are arranged at the bottoms of the two carrier plates, the top ends of the hydraulic cylinders are fixedly arranged at the bottoms of the carrier plates, upper padding plates are fixedly arranged at the output ends of the hydraulic cylinders, lower padding plates are arranged at the bottom ends of the upper padding plates, springs are arranged between the upper padding plates and the lower padding plates, the upper ends and the lower ends of the springs are respectively and fixedly connected to the bottoms of the upper padding plates and the tops of the lower padding plates, a middle plate is arranged between the two carrier plates, the two ends of the middle plate are respectively and fixedly connected to the lateral sides of the carrier plates, a gravity center adjusting mechanism is arranged at the top ends of the middle plate and comprises a slide way, side plates are fixedly arranged at the upper ends of the two sides of the slide way, mounting bolts are respectively connected to the side plates in a threaded manner, a slide block is fixedly arranged at the center of the tops of the middle plates, and is arranged in the slide way in a sliding manner, clamping grooves are formed in two sides in the slide way, clamping blocks are fixedly mounted on two sides of the sliding block, and the clamping blocks on two sides are arranged in the clamping grooves on two sides in a sliding mode respectively.

Preferably, the bottom end of the middle position plate is provided with a fault supporting mechanism, the fault supporting mechanism comprises a sleeve, the top end of the sleeve is fixedly installed at the bottom of the middle position plate, the lower end of the sleeve is provided with an inner rod, the upper end of the inner rod is connected into the sleeve in a threaded mode, and the bottom end of the inner rod is fixedly provided with a bottom plate.

Preferably, a vertical baffle is arranged on one side of the middle plate, one side of the vertical baffle is fixedly connected with the support plate and the middle plate, a guide plate is fixedly mounted at the bottom end of the vertical baffle, and the lower end of the guide plate is obliquely arranged towards one side away from the hydraulic cylinder.

Preferably, the bottom of the bottom sheet and the bottom of the lower cushion plate are both provided with anti-skid grains.

Preferably, the outer surface of the spring is plated with nickel.

The utility model provides a semitrailer landing leg, beneficial effect lies in:

drawings

Fig. 1 is the utility model provides a structural schematic diagram of semitrailer landing leg.

Fig. 2 is the utility model provides a cross-sectional view of semitrailer landing leg.

Fig. 3 is a schematic structural diagram of a semitrailer leg according to the present invention.

In the figure: the device comprises a carrier plate 1, a hydraulic cylinder 2, an upper backing plate 3, a spring 4, a lower backing plate 5, a middle plate 6, a slide way 7, a side plate 8, a mounting bolt 9, a slide block 10, a clamping groove 11, a clamping block 12, a sleeve 13, an inner rod 14, a bottom plate 15, a vertical baffle 16 and a guide plate 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1:

referring to fig. 1-3, a semitrailer landing leg comprises two carrier plates 1, wherein the two carrier plates 1 are arranged at intervals, hydraulic cylinders 2 are arranged at the bottoms of the two carrier plates 1, the top ends of the hydraulic cylinders 2 are fixedly arranged at the bottoms of the carrier plates 1, upper cushion plates 3 are fixedly arranged at the output ends of the hydraulic cylinders 2, lower cushion plates 5 are arranged at the bottom ends of the upper cushion plates 3, springs 4 are arranged between the upper cushion plates 3 and the lower cushion plates 5, the upper ends and the lower ends of the springs 4 are respectively and fixedly connected to the bottoms of the upper cushion plates 3 and the tops of the lower cushion plates 5, a middle plate 6 is arranged between the two carrier plates 1, the two ends of the middle plate 6 are respectively and fixedly connected to the side sides of the carrier plates 1, a gravity center adjusting mechanism is arranged at the top ends of the middle plate 6, the gravity center adjusting mechanism comprises a slide way 7, side plates 8 are fixedly arranged at the upper ends of the two sides of the slide way 7, mounting bolts 9 are in threaded connection on the side plates 8, and a slide block 10 is fixedly arranged at the center of the top of the middle plate 6, the sliding block 10 is arranged in the slideway 7 in a sliding manner, clamping grooves 11 are formed in two sides in the slideway 7, clamping blocks 12 are fixedly arranged on two sides of the sliding block 10, and the clamping blocks 12 on the two sides are respectively arranged in the clamping grooves 11 on the two sides in a sliding manner; through setting up upper padding plate 3, spring 4, lower bolster 5, well position plate 6, slide 7, curb plate 8, construction bolt 9, slider 10, draw-in groove 11, fixture block 12 and mutually supporting, thereby pneumatic cylinder 2 works and drives lower bolster 5 and ground contact and realize supporting, rock the vibrations that bring through the reducible car hopper of spring 4, through shifting in the position plate 6 before the device work, slider 10 removes in slide 7 to adjust the position of pneumatic cylinder 2 according to actual conditions.

Example 2:

referring to fig. 1-3, as another preferred embodiment of the present invention, the difference with embodiment 1 lies in that, well position 6 bottom is equipped with trouble supporting mechanism, trouble supporting mechanism includes sleeve pipe 13, sleeve pipe 13 top fixed mounting is in well position 6 bottom, sleeve pipe 13 lower extreme is equipped with interior pole 14, interior pole 14 upper end threaded connection is in sleeve pipe 13, interior pole 14 bottom fixed mounting has film 15, because the device during operation, pneumatic cylinder 2 bears great holding down force all the time, consider that pneumatic cylinder 2 breaks down and can cause the incident at the during operation, through the position of the relative sleeve pipe 13 of the adjustable interior pole 14 of rotating interior pole 14, the device during operation, film 15 and the holding surface contact of interior pole 14 bottom can replace the supporting role, when pneumatic cylinder 2 breaks down, sleeve pipe 13 and interior pole 14 and play the supporting effect.

The middle plate 6 one side is equipped with perpendicular baffle 16, erect baffle 16 one side and support plate 1 and middle plate 6 fixed connection, erect 16 bottom fixed mounting of baffle has guide plate 17, the guide plate 17 lower extreme sets up to keeping away from 2 lopsidedness of pneumatic cylinder, erect baffle 16 and guide plate 17 and can block gravel and sand, sewage etc. splashes on pneumatic cylinder 2, thereby play the protecting effect, film 15 and lower backing plate 5 bottom all are equipped with anti-skidding line, increase support friction, 4 outer surface nickel plating of spring are handled, 4 corrosion resistance of spring improves.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The semitrailer landing leg comprises two support plates (1) and is characterized in that the two support plates (1) are arranged at intervals, two hydraulic cylinders (2) are arranged at the bottoms of the support plates (1), the top ends of the hydraulic cylinders (2) are fixedly arranged at the bottoms of the support plates (1), an upper base plate (3) is fixedly arranged at the output ends of the hydraulic cylinders (2), a lower base plate (5) is arranged at the bottom end of the upper base plate (3), springs (4) are arranged between the upper base plate (3) and the lower base plate (5), the upper ends and the lower ends of the springs (4) are respectively and fixedly connected to the bottoms of the upper base plate (3) and the top of the lower base plate (5), a middle plate (6) is arranged between the two support plates (1), the two ends of the middle plate (6) are respectively and fixedly connected to the side of each support plate (1), a gravity center adjusting mechanism is arranged at the top end of each middle plate (6), and comprises a slide way (7), slide (7) both sides upper end equal fixed mounting has curb plate (8), equal threaded connection has construction bolt (9) on curb plate (8), the fixed mounting of central department in center of top of median plate (6) has slider (10), slider (10) slide and set up in slide (7), draw-in groove (11) have all been seted up to both sides in slide (7), the equal fixed mounting in slider (10) both sides has fixture block (12), both sides fixture block (12) slide respectively and set up in the draw-in groove (11) of both sides.

2. The semitrailer outrigger as claimed in claim 1, characterized in that a fault supporting mechanism is arranged at the bottom end of the median plate (6), the fault supporting mechanism comprises a sleeve (13), the top end of the sleeve (13) is fixedly installed at the bottom of the median plate (6), an inner rod (14) is arranged at the lower end of the sleeve (13), the upper end of the inner rod (14) is connected in the sleeve (13) in a threaded manner, and a bottom plate (15) is fixedly installed at the bottom end of the inner rod (14).

3. The semitrailer outrigger according to claim 1, characterized in that a vertical baffle (16) is arranged on one side of the neutral plate (6), one side of the vertical baffle (16) is fixedly connected with the carrier plate (1) and the neutral plate (6), a guide plate (17) is fixedly installed at the bottom end of the vertical baffle (16), and the lower end of the guide plate (17) is obliquely arranged towards one side far away from the hydraulic cylinder (2).

4. A semitrailer leg according to claim 2, characterised in that the bottom sheet (15) and the bottom of the lower backing plate (5) are provided with anti-slip threads.

5. A semitrailer leg according to claim 1, characterised in that the outer surface of said spring (4) is nickel-plated.