CN215634051U

CN215634051U - Power system for swing-hanging support leg of container

Info

Publication number: CN215634051U
Application number: CN202122034413.XU
Authority: CN
Inventors: 杨卫
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-01-25
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses a power system for a container throwing and hanging support leg, which comprises an oil tank, a hydraulic pump and a valve body installation part, wherein the hydraulic pump and the valve body installation part are fixed on one side of the oil tank; when the telescopic supporting legs support the container, only the hydraulic pump needs to be started, and the extension oil cylinder, the rotary oil cylinder and the supporting leg oil cylinder are matched with each other according to the corresponding first sequence valve and the throttle valve to complete the corresponding starting sequence; similarly, when the supporting legs are recovered, the movement direction of oil is adjusted through the reversing valve, the recovery action is completed through the mutual matching of the second sequence valve and the throttle valve, three groups of actions of the telescopic supporting legs do not need to be controlled respectively, and the operation is more convenient and faster.

Description

Power system for swing-hanging support leg of container

Technical Field

The utility model belongs to the technical field of container supporting equipment, and relates to a power system for a container swing hanging support leg.

Background

After the container trailer transports the container in place, the container needs to be supported and then driven away from the trailer. The container generally uses telescopic leg to support it, because container trailer type space is less, and general container can't pass trailer bottom direct stay, so need take the telescopic leg of expansion function to make it support downwards from automobile body both sides. The existing telescopic supporting legs generally need three groups of actions when supporting a container, namely, the telescopic supporting legs are firstly pushed away from the side wall of a trailer through an expansion oil cylinder, then the telescopic supporting legs in a horizontal state are converted into a vertical state through a rotating oil cylinder, and finally, the telescopic parts of the telescopic supporting legs move downwards through supporting leg oil cylinders and are finally abutted against the ground to complete the supporting action; when the telescopic supporting legs are retracted, the reverse action is only needed. When the existing telescopic supporting leg acts, three groups of actions need to be operated respectively, the operation process is complex, the layout of the existing control part is unreasonable, the occupied space is large, the compact type is not strong, and the existing telescopic supporting leg is not suitable for being used by vehicles with small spaces.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the background technology, the utility model provides a power system for a container swing hanging support leg.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a container is got rid of and is hung driving system for landing leg, includes the oil tank, fixes hydraulic pump and the valve body installation department in oil tank one side, the hydraulic pump oil feed end stretches into in the oil tank, be provided with first sequence valve, second sequence valve, switching-over valve on the valve body installation department, the hydraulic pump fuel feeding end is through switching-over valve and first sequence valve and extension hydro-cylinder intercommunication, the pole chamber that has of extension hydro-cylinder returns to the oil tank in through the second sequence valve, the rodless chamber intercommunication of first sequence valve and rotatory hydro-cylinder and landing leg hydro-cylinder, the pole chamber that has of rotatory hydro-cylinder and landing leg hydro-cylinder communicates with the second sequence valve and returns to the oil tank through the switching-over valve in, landing leg hydro-cylinder oil return end is provided with the choke valve for adjust the precedence order of action between rotatory hydro-cylinder and the landing leg hydro-cylinder.

Further, a one-way valve is arranged between the hydraulic pump and the reversing valve.

Furthermore, an overflow valve is arranged between the one-way valve and the reversing valve.

Further, the oil inlet end of the hydraulic pump is provided with a filter.

Furthermore, an adaptive hole for inserting the first sequence valve, the second sequence valve and the reversing valve is formed in the valve body mounting portion.

Furthermore, a hydraulic lock is arranged between the rod cavity and the rodless cavity of the rotating oil cylinder and the supporting leg oil cylinder.

Furthermore, a pipe joint for connecting the rotary oil cylinder, the supporting leg oil cylinder and the extension oil cylinder is further arranged on the valve body mounting part.

Further, a connecting plate is arranged on the side wall of the oil tank.

Compared with the prior art, the utility model has the following beneficial effects:

1. when the telescopic supporting legs support the container, only the hydraulic pump needs to be started, and the extension oil cylinder, the rotary oil cylinder and the supporting leg oil cylinder are matched with each other according to the corresponding first sequence valve and the throttle valve to complete the corresponding starting sequence; similarly, when the supporting legs are recovered, the movement direction of oil is adjusted through the reversing valve, the recovery action is completed through the mutual matching of the second sequence valve and the throttle valve, three groups of actions of the telescopic supporting legs do not need to be controlled respectively, and the operation is more convenient and faster.

2. According to the utility model, the hydraulic pump and the valve body installation part are integrated on the oil tank, and meanwhile, the first sequence valve, the second sequence valve and the third sequence valve are all in a plug-in mounting type, so that the valve body is small in size, the whole device is compact and strong, and the device is suitable for vehicles with small space.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a working principle diagram of the present invention.

In the figure: 1. an oil tank; 2. a hydraulic pump; 3. a valve body mounting portion; 4. a first sequence valve; 5. a second sequence valve; 6. a diverter valve; 7. expanding the oil cylinder; 8. rotating the oil cylinder; 9. a support oil cylinder; 10. a throttle valve; 11. a one-way valve; 12. an overflow valve; 13. a filter; 14. hydraulic locking; 15. a connecting plate; 16. and (4) a fitting hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-2, the technical solution adopted by the present invention is as follows: a power system for a container swing hanging support leg comprises an oil tank 1, a hydraulic pump 2 and a valve body installation part 3 which are fixed on one side of the oil tank 1 through bolts, wherein the oil inlet end of the hydraulic pump 2 extends into the oil tank 1, a first sequence valve 4, a second sequence valve 5 and a reversing valve 6 are arranged on the valve body installation part 3, the oil supply end of the hydraulic pump 2 is communicated with the first sequence valve 4 and an extension oil cylinder 7 through the reversing valve 6, a rod cavity of the extension oil cylinder 7 returns oil into the oil tank 1 through the second sequence valve 5, the first sequence valve 4 is communicated with rodless cavities of a rotary oil cylinder 8 and a support leg oil cylinder 9, and rod cavities of the rotary oil cylinder 8 and the support leg oil cylinder 9 are communicated with the second sequence valve 5 and return oil into the oil tank 1 through the reversing valve 6;

the hydraulic pump 2 supplies oil to the first sequence valve 4 and the extension oil cylinder 7, at the moment, because the hydraulic pressure of the hydraulic pump 2 is smaller than the starting pressure of the first sequence valve 4, the oil only drives the extension oil cylinder 7 to act, when the stroke of the extension oil cylinder 7 reaches the maximum value, the hydraulic pressure is increased, then enters the rotating oil cylinder 8 and the supporting leg oil cylinder 9 through the first sequence valve 4 and pushes the rotating oil cylinder 8 and the supporting leg oil cylinder 9 to act, a rod cavity of the supporting leg oil cylinder 9 is provided with a throttle valve 10, the throttle valve 10 reduces the flow rate of oil in the leg oil cylinder 9, further reduces the speed of the leg oil cylinder 9 to complete the action, when oil enters the rotary oil cylinder 8 and the supporting leg oil cylinder 9 simultaneously through the first sequence valve 4, the rotary oil cylinder 8 reaches the maximum stroke firstly, then the supporting leg oil cylinder 9 reaches the maximum stroke, and three groups of actions required by the telescopic supporting leg when supporting the container are further met.

In this embodiment, a check valve 11 is communicated between the hydraulic pump 2 and the reversing valve 6 to prevent the reverse flow of oil, and when the pressure of the oil in the power system is suddenly increased, the hydraulic pump 2 is prevented from being damaged.

In this embodiment, an overflow valve 12 is communicated between the check valve 11 and the reversing valve 6, and the overflow valve 12 plays roles of constant pressure overflow and pressure stabilization, thereby ensuring stable oil pressure in the whole power system.

In this embodiment, the oil inlet end of the hydraulic pump 2 is provided with the filter 13, and the filter 13 can prevent particulate foreign matters from entering the hydraulic pump 2, thereby ensuring the stable operation of the hydraulic pump 2.

In this embodiment, the valve body mounting portion 3 is provided with an adapting hole 16 for inserting the first sequence valve 4, the second sequence valve 5 and the reversing valve 6, the first sequence valve 4 and the second sequence valve 5 are plug-in valves with models of ZSF08-00.03.20, the reversing valve 6 is a plug-in valve with models of DHF08-241.24DH, and the plug-in valves are small in size, so that occupied space can be reduced, the compactness of the whole device can be improved, and the device is suitable for vehicles with small space.

In this embodiment, a hydraulic lock 14 is disposed between the rod cavity and the rodless cavity of the rotary cylinder 8 and the support cylinder 9, the hydraulic lock 14 is composed of two hydraulic control check valves, for convenience of description, the two hydraulic control check valves are respectively marked as a first hydraulic control check valve and a second hydraulic control check valve, when oil enters the rodless cavity of the rotary cylinder 8 and the support cylinder 9 through the first hydraulic control check valve, the second hydraulic control check valve detects an oil signal, at this time, an oil inlet end and an oil outlet end of the second hydraulic control check valve are communicated, the oil pushes the rotary cylinder 8 and the support cylinder 9 to act, and the rod cavity of the rotary cylinder 8 and the support cylinder 9 can be communicated with the second hydraulic control check valve at this time; when oil enters the rod cavities of the rotary oil cylinder 8 and the support oil cylinder 9 through the second hydraulic control one-way valve, the oil inlet end and the oil outlet end of the first hydraulic control one-way valve are communicated in the same way; when the first hydraulic control one-way valve and the second hydraulic control one-way valve do not take oil, the hydraulic lock 14 can ensure the stability of the oil in the rotary oil cylinder 8 and the support oil cylinder 9, and further the rotary oil cylinder 8 and the support oil cylinder 9 keep current action.

In this embodiment, the valve body mounting portion 3 is further provided with a connecting pipe joint for connecting the rotating cylinder 8, the supporting leg cylinder 9, and the extension cylinder 7, and when in use, oil ports corresponding to the rotating cylinder 8, the supporting leg cylinder 9, and the extension cylinder 7 are fixed on the corresponding connecting pipe joint through oil pipes in sequence.

In this embodiment, the connecting plate 15 is welded to the side wall of the oil tank 1, and the oil tank 1 and the hydraulic pump 2 are fixed to a driving member that drives the telescopic legs to move through the connecting plate 15.

According to the working principle of the utility model, when the telescopic supporting leg is supported, the hydraulic pump 2 sucks oil out of the oil tank 1, the oil enters the oil inlet of the first sequence valve 4 and the rodless cavity end of the extension oil cylinder 7 through the check valve 11, the P port of the reversing valve 6 and the A port of the reversing valve 6 in sequence, the oil pushes the extension oil cylinder 7 to move because the oil pressure does not reach the starting pressure of the first sequence valve 4 at the moment, the piston rod of the extension oil cylinder 7 extends out, when the stroke of the extension oil cylinder 7 reaches the maximum, the oil pressure increases at the moment, the first sequence valve 4 starts, the oil inlet and the oil outlet of the first sequence valve 4 are communicated, the oil enters the rodless cavities of the rotary oil cylinder 8 and the supporting leg oil cylinder 9 through the first sequence valve 4 and the hydraulic lock 14 in sequence, the oil pushes the rotary oil cylinder 8 and the supporting leg oil cylinder 9 to move, and because the throttle valve 10 is arranged at the oil port of the rod cavity of the supporting leg oil cylinder 9, the rotary oil cylinder 8 reaches the maximum stroke first, the supporting leg oil cylinder 9 reaches the maximum stroke, namely three groups of actions required when the telescopic supporting leg supports the container are met, and meanwhile the three groups of actions are matched through the first sequence valve 4 and the throttle valve 10, so that the three groups of actions do not need to be operated respectively, and the operation is more convenient and faster;

when the telescopic supporting leg is recovered, the reversing valve 6 acts, the hydraulic pump 2 sucks oil out of the oil tank 1, the oil sequentially passes through the check valve 11, the port P of the reversing valve 6 and the port B of the reversing valve 6 and is divided into two oil paths, the oil enters the oil inlet of the second sequence valve 5 through one oil path, the oil enters the rod cavities of the rotary oil cylinder 8 and the supporting leg oil cylinder 9 through the hydraulic lock 14 through the other oil path, because the oil pressure does not reach the starting pressure of the second sequence valve 5 at the moment, the oil pushes the rotary oil cylinder 8 and the supporting leg oil cylinder 9 to act, the piston rods of the rotary oil cylinder 8 and the supporting leg oil cylinder 9 are recovered, and because of the action of the throttle valve 10, the rotary oil cylinder 8 finishes the action firstly, the supporting leg oil cylinder 9 finishes the action, and when the rotary oil cylinder 8 and the supporting leg oil cylinder 9 are recovered completely, the oil can not push the rotary oil cylinder 8 and the supporting leg oil cylinder 9 to act, the oil pressure is increased, the second sequence valve 5 is started, the oil inlet and the oil outlet of the second sequence valve 5 are communicated, oil enters the rod cavity of the extension oil cylinder 7, the extension oil cylinder 7 is made to perform the recovery action, and the hydraulic pump 2 is closed after the extension oil cylinder 7 completes the recovery action.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a container is got rid of and is hung driving system for landing leg which characterized in that: including the oil tank, fix hydraulic pump and valve body installation department in oil tank one side, the hydraulic pump oil feed end stretches into in the oil tank, be provided with first sequence valve, second sequence valve, switching-over valve on the valve body installation department, the hydraulic pump oil supply end is through switching-over valve and first sequence valve and extension hydro-cylinder intercommunication, the pole chamber that has of extension hydro-cylinder returns oil to the oil tank in through the second sequence valve, the rodless chamber intercommunication of first sequence valve and swivel cylinder and landing leg hydro-cylinder, the pole chamber that has of swivel cylinder and landing leg hydro-cylinder communicates with the second sequence valve and returns oil to the oil tank through the switching-over valve in, the landing leg hydro-cylinder has pole chamber department to be provided with the choke valve for adjust the precedence of action between swivel cylinder and the landing leg hydro-cylinder.

2. The power system for the container swing hanging support leg according to claim 1, characterized in that: and a one-way valve is arranged between the hydraulic pump and the reversing valve.

3. The power system for the container swing hanging support leg according to claim 2, characterized in that: an overflow valve is arranged between the one-way valve and the reversing valve.

4. The power system for the container swing hanging support leg according to claim 1, characterized in that: and the oil inlet end of the hydraulic pump is provided with a filter.

5. The power system for the container swing hanging support leg according to claim 1, characterized in that: and the valve body mounting part is provided with an adaptive hole for inserting the first sequence valve, the second sequence valve and the reversing valve.

6. The power system for the container swing hanging support leg according to claim 1, characterized in that: and hydraulic locks are arranged between the rod cavities and the rodless cavities of the rotary oil cylinder and the supporting leg oil cylinder.

7. The power system for the container swing hanging support leg according to claim 1, characterized in that: and a pipe joint for connecting the rotary oil cylinder, the supporting leg oil cylinder and the extension oil cylinder is further arranged on the valve body mounting part.

8. The power system for the container swing hanging support leg according to claim 1, characterized in that: and a connecting plate is arranged on the side wall of the oil tank.