CN216199344U - Self-discharging formula special-purpose vehicle emergency device - Google Patents
Self-discharging formula special-purpose vehicle emergency device Download PDFInfo
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- CN216199344U CN216199344U CN202122369747.2U CN202122369747U CN216199344U CN 216199344 U CN216199344 U CN 216199344U CN 202122369747 U CN202122369747 U CN 202122369747U CN 216199344 U CN216199344 U CN 216199344U
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Abstract
The utility model discloses a self-discharging emergency device for a special vehicle, which comprises an oil tank, a hydraulic pump, a three-position four-way reversing valve, a main oil inlet path, a main oil return path and an oil cylinder, wherein the oil outlet of the main oil inlet path is connected with a port P of the three-position four-way reversing valve, a port A of the three-position four-way reversing valve is connected with a port A of the oil cylinder through a pipeline A, a port B of the three-position four-way reversing valve is connected with a port B of the oil cylinder through a pipeline B, a port T of the three-position four-way reversing valve is connected with an oil inlet of the main oil return path, an oil outlet of the main oil return path is connected with the oil tank, the three-position four-way reversing valve and the pipeline of the oil cylinder are connected with a two-way balance valve, the two-way balance valve is connected with the pipeline A and the pipeline B, the port A of the oil cylinder is connected with the oil tank through a pipeline C, a hand-driven pump device is connected in series with the pipeline C, a first stop valve is connected in parallel with the pipeline C, and the port B of the oil cylinder is connected with the oil tank through a pipeline D, and a second stop valve is connected in series on the pipeline D.
Description
Technical Field
The utility model relates to an emergency device, in particular to an emergency device of a self-discharging special vehicle, which is applied to the field of self-discharging special vehicles.
Background
The special vehicle is mainly used for municipal sanitation or large-scale factories and mines to transport various garbage, is particularly suitable for transporting residential waste in communities, can compress and crush the loaded garbage, increases the density of the garbage, reduces the volume of the garbage, and greatly improves the efficiency of garbage collection and transportation.
The chassis power part or the electric control power unit of the special vehicle with the self-unloading function is arranged in the vehicle chassis, and when the chassis power source or the electric control power unit and the electric appliance control part break down, the maintenance is inconvenient.
When a chassis power source or an electric control power unit and an electric appliance control part are in failure, a carriage cannot be lifted and cannot be maintained conveniently, the conventional improvement is that a hand-operated pump device is additionally arranged in a self-discharging system, and the carriage of the special vehicle with the self-discharging function can be lifted through the hand-operated pump device, so that the maintenance is convenient, however, due to the characteristic of the special hand-operated pump device, the carriage of the special vehicle with the self-discharging function can only be lifted, and the carriage cannot be put down.
Disclosure of Invention
Aiming at the problems that when a chassis power source or an electric control power unit and an electric appliance control part have faults, a carriage is lifted by additionally arranging a hand pump device, the carriage can only be lifted by the special vehicle with the self-discharging function, and the carriage cannot be put down, the utility model provides the emergency device of the self-discharging special vehicle.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a self-discharging emergency device special for vehicles comprises an oil tank, a hydraulic pump, a three-position four-way reversing valve, a main oil inlet path, a main oil return path and an oil cylinder, wherein the hydraulic pump is connected with the oil tank, an oil inlet of the main oil inlet path is connected with an oil outlet of the hydraulic pump, an oil outlet of the main oil inlet path is connected with a port P of the three-position four-way reversing valve, a port A of the three-position four-way reversing valve is connected with an oil port A of the oil cylinder through a pipeline A, a port B of the three-position four-way reversing valve is connected with an oil port B of the oil cylinder through a pipeline B, a port T of the three-position four-way reversing valve is connected with an oil inlet of the main oil return path, an oil outlet of the main oil return path is connected with the oil tank, a two-way balance valve is connected on a pipeline between the three-position four-way reversing valve and the oil cylinder, the two-way balance valve is connected on the pipeline A and the pipeline B, and the port A of the oil cylinder is connected with the oil tank through a pipeline C, the oil cylinder is characterized in that a hand pump device is connected to the pipeline C in series, a first stop valve is connected to the pipeline C in series, the hand pump device and the first stop valve are connected in parallel, the port B of the oil cylinder is connected with the oil tank through a pipeline D, and a second stop valve is connected to the pipeline D in series.
Further, the emergency device further comprises a motor, and the motor drives the hydraulic pump.
Furthermore, an overflow valve used for protecting an emergency device is connected between the main oil inlet path and the main oil return path.
Furthermore, an oil inlet filter is connected in series between the oil tank and the main oil inlet path.
Further, an oil absorption filter is connected in series between the oil tank and the hydraulic pump.
Furthermore, a pressure gauge is connected to the main oil inlet path.
Further, the overflow valve is a pilot type electromagnetic overflow valve.
The utility model has the beneficial effects that: the utility model provides a self-discharging emergency device for a special vehicle, which has the advantages of simple structure and convenience in use by adopting two stop valves, arranging the stop valve between an opening A of an oil cylinder and an oil tank, arranging the other stop valve between an opening B of the oil cylinder and the oil tank and regulating and controlling the two stop valves to put down a carriage.
Drawings
Fig. 1 is a schematic diagram of an emergency device of a dump special vehicle provided by the utility model.
Reference numerals: 1-an oil tank; 2-a hydraulic pump; 3-a three-position four-way reversing valve; 4-main oil inlet path; 5-main oil return path; 6-oil cylinder; 7-a motor; 8-relief valves; 9-line A; 10-line B; 11-a two-way balancing valve; 12-conduit C; 13-hand pump means; 14-a first shut-off valve; 15-conduit D; 16-a second stop valve; 17-an oil inlet filter; 18-an oil absorption filter; 19-pressure gauge.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1, the emergency device for a dump truck provided by the utility model comprises an oil tank 1, a hydraulic pump 2, a three-position four-way reversing valve 3, a main oil inlet path 4, a main oil return path 5 and an oil cylinder 6, wherein the hydraulic pump 2 is connected with the oil tank 1, an oil inlet of the main oil inlet path 4 is connected with an oil outlet of the hydraulic pump 2, an oil outlet of the main oil inlet path 4 is connected with a port P of the three-position four-way reversing valve 3, a port a of the three-position four-way reversing valve 3 is connected with an oil port a of the oil cylinder 6 through a pipeline a9, a port B of the three-position four-way reversing valve 3 is connected with an oil port B of the oil cylinder 6 through a pipeline B10, a port T of the three-position four-way reversing valve 3 is connected with an oil inlet of the main oil return path 5, an oil outlet of the main oil return path 5 is connected with the oil tank 1, a two-way balance valve 11 is connected on a pipeline between the three-position four-way reversing valve 3 and the oil cylinder 6, the two-way balance valve 11 is connected with a pipeline a9 and a pipeline B10, the port A of the oil cylinder 6 is connected with the oil tank 1 through a pipeline C12, a hand pump device 13 is connected in series on a pipeline C12, a first stop valve 14 is connected in series on a pipeline C12, the hand pump device 13 and the first stop valve 14 are connected in parallel, the port B of the oil cylinder 6 is connected with the oil tank 1 through a pipeline D15, and a second stop valve 16 is connected in series on a pipeline D15. The first stop valve 14 is arranged on the pipeline C12 between the port A for communicating the oil cylinder 6 and the oil tank 1, the second stop valve 16 is arranged on the pipeline D15 between the port B for communicating the oil cylinder 6 and the oil tank 1, and the carriage is put down by regulating and controlling the first stop valve 14 and the second stop valve 16, so that the novel hydraulic control device has the effects of simple structure and convenience in use.
In this embodiment, in order to facilitate driving the emergency device, the emergency device further includes a motor 7, and the motor 7 drives the hydraulic pump 2. It is also possible to use a chassis engine as a power source for driving the hydraulic pump 2.
In this embodiment, an overflow valve 8 for protecting the emergency device is connected between the main oil supply passage 4 and the main oil return passage 5 in order to stabilize the pressure of the emergency device.
In the embodiment, in order to facilitate cleaning, the oil inlet filter 17 is connected in series between the oil tank 1 and the main oil inlet 4 to filter oil, so that the oil is cleaner.
In this embodiment, in order to further facilitate cleaning, an oil suction filter 18 is connected in series between the oil tank 1 and the hydraulic pump 2.
In this embodiment, in order to detect the oil pressure of the main oil supply passage 4, a pressure gauge 19 is connected to the main oil supply passage 4.
In this embodiment, the relief valve 8 is a pilot electromagnetic relief valve.
The use of the emergency device for a dump truck according to the utility model will now be described:
when a chassis power source or an electric control power unit and an electric appliance control part of the special vehicle have faults, in the process of using the hand-operated pump device 13 to drive the carriage, the first stop valve 14 on the pipeline C12 is in a closed state, the second stop valve 16 on the pipeline D15 is in an open state, when the hand-operated pump device 13 works, oil enters the cavity A of the oil cylinder 6 from the oil port A of the oil cylinder 6 through the pipeline C12, the oil in the cavity B of the oil cylinder 6 is driven by the second stop valve 16 in the open state to flow back to the oil tank 1 along the pipeline D15 through the oil port B of the oil cylinder 6, the carriage is jacked up, the maintenance is convenient, when the fault problem cannot be maintained immediately or cannot be maintained, the carriage is jacked up by the special vehicle, when the special vehicle is moved, potential safety hazards are brought, and the carriage needs to be put down, because the characteristic of special hand pump device, and can not put down the carriage, through setting up first check valve 14 to the open mode, with the oil that lies in the A chamber of hydro-cylinder 6 in the pipeline C12 and between hand pump device 13, through opening of first check valve 14, make oil flow back to in the oil tank 1 through first check valve 14, make the carriage drop, thereby can move towards the special-purpose vehicle, this self-discharging formula special-purpose vehicle emergency device, simple structure has, convenient to use's effect.
It is to be understood that the utility model is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the utility model as defined by the appended claims.
Claims (7)
1. The emergency device for the self-discharging special vehicle is characterized by comprising an oil tank (1), a hydraulic pump (2), a three-position four-way reversing valve (3), a main oil inlet path (4), a main oil return path (5) and an oil cylinder (6), wherein the hydraulic pump (2) is connected with the oil tank (1), an oil inlet of the main oil inlet path (4) is connected with an oil outlet of the hydraulic pump (2), an oil outlet of the main oil inlet path (4) is connected with a port P of the three-position four-way reversing valve (3), a port A of the three-position four-way reversing valve (3) is connected with an oil port A of the oil cylinder (6) through a pipeline A (9), a port B of the three-position four-way reversing valve (3) is connected with an oil port B of the oil cylinder (6) through a pipeline B (10), a port T of the three-position four-way reversing valve (3) is connected with an oil inlet of the main oil return path (5), an oil outlet of the main oil return path (5) is connected with the oil tank (1), be connected with two-way balanced valve (11) on the pipeline between tribit four-way reversing valve (3) and hydro-cylinder (6), two-way balanced valve (11) are connected on pipeline A (9) and pipeline B (10), the A mouth of hydro-cylinder (6) pass through pipeline C (12) with oil tank (1) are connected, it has hand pump device (13) to establish ties on pipeline C (12), it has first check valve (14) to establish ties on pipeline C (12), be parallel connection between hand pump device (13) and first check valve (14), the B mouth of hydro-cylinder (6) pass through pipeline D (15) with oil tank (1) are connected, it has second check valve (16) to have concatenated on pipeline D (15).
2. The emergency device for self-discharging special vehicle according to claim 1, characterized in that it further comprises an electric motor (7), said electric motor (7) driving said hydraulic pump (2).
3. The emergency device for self-discharging special vehicles according to claim 1, characterized in that an overflow valve (8) for protecting the emergency device is connected between the main oil inlet (4) and the main oil return (5).
4. The emergency device for the dump special vehicle according to claim 1, wherein an oil inlet filter (17) is connected in series between the oil tank (1) and the main oil inlet path (4).
5. The emergency device for self-discharging special vehicle according to claim 1, wherein an oil absorption filter (18) is connected in series between the oil tank (1) and the hydraulic pump (2).
6. The emergency device for self-discharging special vehicle according to claim 1, wherein a pressure gauge (19) is connected to the main oil inlet (4).
7. The emergency device for self-discharging special vehicle according to claim 3, wherein the overflow valve (8) is a pilot electromagnetic overflow valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122369747.2U CN216199344U (en) | 2021-09-28 | 2021-09-28 | Self-discharging formula special-purpose vehicle emergency device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122369747.2U CN216199344U (en) | 2021-09-28 | 2021-09-28 | Self-discharging formula special-purpose vehicle emergency device |
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| CN216199344U true CN216199344U (en) | 2022-04-05 |
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| CN202122369747.2U Active CN216199344U (en) | 2021-09-28 | 2021-09-28 | Self-discharging formula special-purpose vehicle emergency device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114802431A (en) * | 2022-05-30 | 2022-07-29 | 中汽北消(北京)应急装备科技有限公司 | Composite steering system of large transport vehicle |
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2021
- 2021-09-28 CN CN202122369747.2U patent/CN216199344U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114802431A (en) * | 2022-05-30 | 2022-07-29 | 中汽北消(北京)应急装备科技有限公司 | Composite steering system of large transport vehicle |
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