CN203958097U - A kind of hand-operated pneumatic Integral hydraulic supporting leg - Google Patents

A kind of hand-operated pneumatic Integral hydraulic supporting leg Download PDF

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Publication number
CN203958097U
CN203958097U CN201420416621.3U CN201420416621U CN203958097U CN 203958097 U CN203958097 U CN 203958097U CN 201420416621 U CN201420416621 U CN 201420416621U CN 203958097 U CN203958097 U CN 203958097U
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China
Prior art keywords
leg
supporting leg
pipeline
right supporting
source
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Expired - Fee Related
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CN201420416621.3U
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Chinese (zh)
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冯敬宝
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Individual
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Individual
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Abstract

The utility model discloses a kind of hand-operated pneumatic Integral hydraulic supporting leg, comprise and draw together left and right supporting leg, each supporting leg includes interior leg, outer leg and base support.Also comprise: Pneumatic jack is located at respectively in outer leg, and the piston rod of Pneumatic jack stretches out downwards, the interior leg that piston rod is corresponding with it is connected; Admission line comprises the source of the gas pipeline that connects source of the gas, and source of the gas pipeline connects left branch leg pipeline and right supporting leg pipeline, and source of the gas pipeline is provided with air circuit breaker, and described left branch leg pipeline and right supporting leg pipeline are connected respectively the admission port of described left and right supporting leg Pneumatic jack; Elastic pulling force part is connected between described outer leg and base support.The utility model is simple in structure, and low cost had both realized the lifting of air operated control supporting leg, can make again interior leg automatically reply original position, avoided accident potential, had greatly solved driver's trouble and worry.

Description

A kind of hand-operated pneumatic Integral hydraulic supporting leg
Technical field
The utility model relates to a kind of superimposed trailer supporting leg, is specifically related to a kind of hand-operated pneumatic Integral hydraulic supporting leg.
Background technology
Superimposed trailer is provided with two supporting legs at front end at present, and supporting leg comprises a leg support, and a leg support is provided with interior leg and outer leg, and outer leg is enclosed within the outside of interior leg, the oscilaltion that can control by lifting mechanism.Lifting mechanism comprises the leading screw that connects outer leg and interior leg, leading screw respectively with fixing in axle sleeve, the screw of leg and the bearing seat clamping that is arranged on outer inboard leg, bearing seat upper end is provided with helical wheel around leading screw, helical wheel connects one one-tenth 90 degree gears in mesh, gear is connected with the driven shaft in change speed gear box, and change speed gear box is welded on the inside of outer leg upper end, and change speed gear box is hushed up a scandal dustproof to inner speed-changing mechanism, driven shaft stretches out gearbox body, and driven shaft one end connects hand crank.When changing superimposed trailer and carry out " getting rid of extensions " operation and maybe need to throw off tractor truck, the both hands rotation manual crank that superimposed trailer chaufeur or operator can only be on one's own account, needs the very large muscle power of consumption just can complete the operating process of putting down or mentioning supporting leg.M/C advantage is that operation is reliable, but that shortcoming is work efficiency is low, can not ensure the safety of chaufeur and vehicle, and chaufeur brings the thing of body injury and vehicle damage to happen occasionally because of operation semi-trailer support.
In addition, existing mechanical elevating mechanism complex structure, therefore stable performance is poor, frequency of maintenance and difficulty are higher; Cost is high, therefore be unfavorable for marketing.
Adopt in addition at present the lifting mechanism of hydraulic jack, the advantage such as hydraulic ram has the safety of saving time, lifting is fast and load-supporting is large, but the power of its lifting relies on hydraulic oil completely.In addition, hydraulic jack also may break down, and brings when driving potential safety hazard.
Summary of the invention
The utility model is intended to solve one of technical matters existing in above-mentioned present technology, proposes a kind of hydraulic ram for superimposed trailer.
For above-mentioned purpose, the technical solution adopted in the utility model is:
A kind of hydraulic ram, comprise and draw together left and right supporting leg, each supporting leg includes interior leg and the outer leg connecting together, the below of interior leg is provided with base support, also comprise: left and right supporting leg Pneumatic jack, described left and right supporting leg Pneumatic jack is located at respectively in the outer leg of left and right supporting leg, and the piston rod of left and right supporting leg Pneumatic jack stretches out downwards, and the interior leg that piston rod is corresponding with it is connected; Admission line, described admission line comprises the source of the gas pipeline that connects source of the gas, described source of the gas pipeline connects left branch leg pipeline and right supporting leg pipeline, and source of the gas pipeline is provided with air circuit breaker, and described left branch leg pipeline and right supporting leg pipeline are connected respectively the admission port of described left and right supporting leg Pneumatic jack; Elastic pulling force part, described elastic pulling force part is connected between described outer leg and base support.
According to hydraulic ram of the present utility model, be exclusively used in superimposed trailer hydraulic ram, it provides superimposed trailer pressurized air by admission line, controls the Pneumatic jack on the supporting leg of left and right simultaneously, thereby can control the lifting of left and right supporting leg simultaneously.Be located at the internal leg of elastic pulling force part between outer leg and base support the pulling force that makes outer leg described in interior leg indentation is provided, if superimposed trailer gas circuit breaks down, elastic pulling force part draws interior leg to make interior leg automatically reply original position, prevents from bringing accident potential.The utility model is simple in structure, and low cost had both realized the lifting of air operated control supporting leg, can make again interior leg automatically reply original position, avoided accident potential, had greatly solved driver's trouble and worry.
In addition, Pneumatic jack of the present utility model is Pneumahydraulic jack, it can control stretching out of telescopic oil top by pressurized air, during decompression, with reducing valve, reduce pressure, also can integral type realization stretch, such as patent 201310250496.3,201310457727.8,200920170342.2 discloses corresponding Pneumahydraulic jack.
In addition, according to the hydraulic ram of the utility model embodiment, can also there is following additional technical feature:
Preferably, described Pneumatic jack comprises Pneumatic booster and telescopic oil top, Pneumatic booster is connected with telescopic oil top, the upper end on described telescopic oil top connects the first adapter plate, the first adapter plate is fixed on the upper end of described outer leg, the piston-rod lower end on telescopic oil top connects the second adapter plate, and the second adapter plate is fixed on the upper end of described interior leg.
Preferably, the left and right sides of described outer leg is equipped with money support, the below of two money supports is equipped with the first connecting bore, and the both sides of described base support are equipped with the second connecting bore, and described elastic pulling force part is connected between described the first connecting bore and the second connecting bore.
Preferably, described elastic pulling force part is spring.
Preferably, described source of the gas pipeline also connects air-pressure gauge.Like this, by air-pressure gauge, detect compressed-air actuated air pressure in admission line, as the reference of controlling left and right supporting leg lifting.
Preferably, described air-pressure gauge connects described source of the gas pipeline by air-pressure gauge pipeline, between described air-pressure gauge pipeline, left branch leg pipeline and right supporting leg pipeline and source of the gas pipeline, with four-way, links together.
Preferably, described source of the gas is with compressed-air actuated superimposed trailer brake piping.
Preferably, described Pneumatic jack also has reducing valve, and reducing valve is protruding to be fixed on the housing of outer leg.
Preferably, described Pneumatic jack also has Manual operation handle, and Manual operation handle is protruding to be fixed on the housing of outer leg.
Preferably, described base support is movably connected in the lower end of described interior leg by bearing pin.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 is left branch leg structural representation of the present utility model;
Fig. 2 is the structural representation of admission line part of the present utility model.
Description of reference numerals:
Left branch leg 1; Outer leg 11; Interior leg 12; Base support 13; Money support 14; Pin 15; The first adapter plate 16; The second adapter plate 17;
Pneumatic jack 2; Pneumatic booster 21; Telescopic oil top 22; Piston rod 23; Reducing bolt 24; Manual operation handle 25;
Admission line 3; Source of the gas pipeline 31; Left branch leg pipeline 32; Right supporting leg pipeline 33; Air-pressure gauge pipeline 34; Air-pressure gauge 35; Air circuit breaker 36; Four-way 37;
Spring 4.
The specific embodiment
Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
With reference to Fig. 1-2, a kind of hand-operated pneumatic Integral hydraulic supporting leg of the utility model embodiment, comprises left branch leg 1, outer leg 11, interior leg 12, base support 13, money support 14, pin the 15, first adapter plate 16, the second adapter plate 17, Pneumatic jack 2, Pneumatic booster 21, telescopic oil top 22, piston rod 23, admission line 3, source of the gas pipeline 31, left branch leg pipeline 32, right supporting leg pipeline 33, air-pressure gauge pipeline 34, air-pressure gauge 35, air circuit breaker 36, four-way 37, spring 4.
Particularly, it comprises left branch leg 1, right supporting leg.Each supporting leg includes outer leg 11 and is socketed in the interior leg 12 of outer leg 11 belows, and the below of interior leg 12 is provided with base support 13.Base support 13 is rotatably connected to the lower end of described interior leg 12 by pin 15, when supporting leg tilts, base support 13 also tilts thereupon, prevents from damaging supporting leg itself like this.The left and right sides of outer leg 11 is equipped with money support 14, and money support 14 is provided with some mounting holes, and the below of two money supports 14 is equipped with the first connecting bore, and the both sides of base support 13 are equipped with the second connecting bore.Spring 4 is connected between described the first connecting bore and the second connecting bore, and the pulling force of spring 4 is greater than weight and the friction force of interior leg 12, and internally leg 12 provides the pulling force that makes the outer leg 11 of interior leg 12 indentations.
In the outer leg 11 of left and right supporting leg, be respectively equipped with left and right supporting leg Pneumatic jack.Pneumatic jack 2 comprises Pneumatic booster 21 and telescopic oil top 22, Pneumatic booster 21 is located in telescopic oil top 22 and with telescopic oil top 22 and is connected, the upper end on described telescopic oil top 22 connects the first adapter plate 16, the first adapter plate 16 is fixed on the upper end of described outer leg 11, piston rod 23 lower ends on telescopic oil top 22 connect the upper end that the second adapter plate 17, the second adapter plates 17 are fixed on described interior leg 12.The first adapter plate 16 and the second adapter plate 17 are the steel plate of 10mm thickness.Pneumatic jack 2 also has reducing valve (also can be reducing bolt 24) and Manual operation handle 25, and reducing valve and Manual operation handle 25 are respectively on the housing of the protruding outer leg 11 that is fixed to left branch leg 1.Manual operation handle 25 is located in the M/C mouth of outer leg 11, and the object of Manual operation handle 25 is when there is no compressed air gas source and breaking down, and can manually control piston rod 23 reductions on left and right supporting leg telescopic oil top 22 separately.
Admission line 3 comprises the source of the gas pipeline 31 that connects source of the gas, and source of the gas is with compressed-air actuated superimposed trailer brake piping.Source of the gas pipeline 31 connects respectively left branch leg pipeline 32, right supporting leg pipeline 33 and air-pressure gauge pipeline 34 by four-way 37.By air-pressure gauge 35, detect compressed-air actuated air pressure in admission line 3, as the reference of controlling left and right supporting leg lifting.Left branch leg pipeline 32 can be made with nylon tube with right supporting leg pipeline 33() be connected respectively the admission port of described left and right supporting leg Pneumatic jack.Source of the gas pipeline 31 is provided with air circuit breaker 36, and air circuit breaker 36 is located on left branch leg 1, can control left and right supporting leg lifting simultaneously, when left and right supporting leg declines, with reducing valve, reduces pressure, and by outer leg 11, is connected with interior leg 12 use springs 4, can make so interior leg 12 automatically reply original position.If superimposed trailer gas circuit breaks down, available Manual operation handle 25 is pressed up and down, and supporting leg is risen, and during contraction, with reducing valve, reduces pressure, and interior leg automatically replies original position.
The present embodiment is all located at air-pressure gauge 35, Manual operation handle 25 and air circuit breaker 36 and relevant admission line 3 on left branch leg 1, thereby can operate in left branch leg 1 one sides the rise of left and right supporting leg simultaneously.During decline, regulate respectively the reducing valve on pneumatic very heavy 2 on the supporting leg of left and right, realize and declining.
In addition, the structure of the Pneumatic jack 2 of the present embodiment can be with reference to 20 tons of gas Manual vertical tops (model is QYL20D) of Nanfang Machinery Manufacturing Co., Ltd., Fenghua City.
To sum up, according to the hand-operated pneumatic integral type superimposed trailer of the utility model embodiment, with hydraulic ram, it provides superimposed trailer pressurized air by admission line 3, controls the Pneumatic jack 2 on the supporting leg of left and right simultaneously, thereby can control the lifting of left and right supporting leg simultaneously.Be located at leg 12 in 4 pairs, spring between outer leg 11 and base support 13 pulling force that makes outer leg 11 described in interior leg 12 indentations is provided, if superimposed trailer gas circuit breaks down, elastic pulling force part draws interior leg 12 to make interior leg 12 automatically reply original position, prevents from bringing accident potential.The utility model is simple in structure, and low cost had both realized the lifting of air operated control supporting leg, can make again interior leg 12 automatically reply original position, avoids accident potential, has greatly solved driver's trouble and worry.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.

Claims (10)

1. a hydraulic ram, comprises and draws together left and right supporting leg, and each supporting leg includes interior leg and the outer leg connecting together, and the below of interior leg is provided with base support, it is characterized in that, also comprises:
Left and right supporting leg Pneumatic jack, described left and right supporting leg Pneumatic jack is located at respectively in the outer leg of left and right supporting leg, and the piston rod of left and right supporting leg Pneumatic jack stretches out downwards, and the interior leg that piston rod is corresponding with it is connected;
Admission line, described admission line comprises the source of the gas pipeline that connects source of the gas, described source of the gas pipeline connects left branch leg pipeline and right supporting leg pipeline, and source of the gas pipeline is provided with air circuit breaker, and described left branch leg pipeline and right supporting leg pipeline are connected respectively the admission port of described left and right supporting leg Pneumatic jack;
Elastic pulling force part, described elastic pulling force part is connected between described outer leg and base support.
2. hydraulic ram according to claim 1, it is characterized in that, described Pneumatic jack comprises Pneumatic booster and telescopic oil top, Pneumatic booster is connected with telescopic oil top, the upper end on described telescopic oil top connects the first adapter plate, the first adapter plate is fixed on the upper end of described outer leg, and the piston-rod lower end on telescopic oil top connects the second adapter plate, and the second adapter plate is fixed on the upper end of described interior leg.
3. hydraulic ram according to claim 1, it is characterized in that, the left and right sides of described outer leg is equipped with money support, the below of two money supports is equipped with the first connecting bore, the both sides of described base support are equipped with the second connecting bore, and described elastic pulling force part is connected between described the first connecting bore and the second connecting bore.
4. according to the hydraulic ram described in claim 1 or 3, it is characterized in that, described elastic pulling force part is spring.
5. hydraulic ram according to claim 1, is characterized in that, described source of the gas pipeline also connects air-pressure gauge.
6. hydraulic ram according to claim 5, is characterized in that, described air-pressure gauge connects described source of the gas pipeline by air-pressure gauge pipeline, between described air-pressure gauge pipeline, left branch leg pipeline and right supporting leg pipeline and source of the gas pipeline, with four-way, links together.
7. hydraulic ram according to claim 1, is characterized in that, described source of the gas is with compressed-air actuated superimposed trailer brake piping.
8. hydraulic ram according to claim 1, is characterized in that, described Pneumatic jack also has reducing valve, and reducing valve is protruding to be fixed on the housing of outer leg.
9. hydraulic ram according to claim 1, is characterized in that, described Pneumatic jack also has Manual operation handle, and Manual operation handle is protruding to be fixed on the housing of outer leg.
10. hydraulic ram according to claim 1, is characterized in that, described base support is movably connected in the lower end of described interior leg by bearing pin.
CN201420416621.3U 2014-07-25 2014-07-25 A kind of hand-operated pneumatic Integral hydraulic supporting leg Expired - Fee Related CN203958097U (en)

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Application Number Priority Date Filing Date Title
CN201420416621.3U CN203958097U (en) 2014-07-25 2014-07-25 A kind of hand-operated pneumatic Integral hydraulic supporting leg

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Application Number Priority Date Filing Date Title
CN201420416621.3U CN203958097U (en) 2014-07-25 2014-07-25 A kind of hand-operated pneumatic Integral hydraulic supporting leg

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108146331A (en) * 2017-12-29 2018-06-12 重庆宏雷机械制造有限公司 A kind of vehicle transport support device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108146331A (en) * 2017-12-29 2018-06-12 重庆宏雷机械制造有限公司 A kind of vehicle transport support device

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141126