CN220615740U - Lifting system and vehicle - Google Patents

Abstract

The utility model relates to the technical field of vehicles, in particular to a lifting system and a vehicle. The lifting system comprises: the oil inlet pipeline is used for inputting hydraulic oil; the oil discharge pipeline is used for discharging hydraulic oil; a lifting cylinder for performing a lifting operation when hydraulic oil is input and performing a lowering operation when hydraulic oil is discharged; the distribution valve is connected with the lifting cylinder through an oil conveying pipeline and is respectively connected with the oil inlet pipeline and the oil outlet pipeline, and is used for enabling the oil inlet pipeline to be communicated with the oil conveying pipeline when the first distribution valve is in a gear position and enabling the oil outlet pipeline to be communicated with the oil conveying pipeline when the second distribution valve is in a gear position; and the first electromagnetic valve is connected with the distribution valve and is used for enabling the distribution valve to be in a first distribution valve gear when being in a first electromagnetic valve gear and enabling the distribution valve to be in a second distribution valve gear when being in a second electromagnetic valve gear. The problem of complicated structure caused by arranging lines for two electromagnetic valves respectively can be solved, and the cost can be reduced.

Description

Lifting system and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a lifting system and a vehicle.

Background

Vehicles may often be provided with lifting systems to raise doors, seats, engine hoods, trunk lids, roof racks, cargo boxes, and the like by the lifting systems.

In the related art, two solenoid valves are generally provided, one for controlling a lifting operation and the other for controlling a lowering operation. Since two solenoid valves are provided to control the lifting operation and the lowering operation, respectively, it is necessary to install the two solenoid valves, respectively, at the time of installation in order to provide lines for the two solenoid valves, respectively, which causes a problem of complicated structure.

Therefore, there is a need to design a lifting system and a vehicle, which can solve the technical problem of complex structure caused by respectively arranging lines for two electromagnetic valves.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art or related art.

Therefore, the utility model provides a lifting system, which solves the technical problem of complex structure caused by arranging lines for two electromagnetic valves respectively, can save cost, and can realize leading valve control so as to improve stability and safety.

The utility model further provides a vehicle comprising the lifting system.

A lifting system according to an embodiment of the first aspect of the utility model comprises: the oil inlet pipeline is used for inputting hydraulic oil; the oil discharge pipeline is used for discharging hydraulic oil; a lifting cylinder for performing a lifting operation when hydraulic oil is input and performing a lowering operation when hydraulic oil is discharged; the distribution valve is connected with the lifting cylinder through an oil conveying pipeline and is respectively connected with the oil inlet pipeline and the oil outlet pipeline, and is used for enabling the oil inlet pipeline to be communicated with the oil conveying pipeline when the first distribution valve is in a gear position and enabling the oil outlet pipeline to be communicated with the oil conveying pipeline when the second distribution valve is in a gear position; and the first electromagnetic valve is connected with the distribution valve and is used for enabling the distribution valve to be in a first distribution valve gear when being in a first electromagnetic valve gear and enabling the distribution valve to be in a second distribution valve gear when being in a second electromagnetic valve gear.

Optionally, the lifting system further comprises: the hydraulic oil tank is connected with the distribution valve through an oil inlet pipeline and an oil outlet pipeline respectively and used for storing hydraulic oil; and the oil pump is arranged in the oil inlet pipeline and used for enabling hydraulic oil to flow from the hydraulic oil tank to the distribution valve.

Optionally, the lifting system further comprises: the clutch is connected with the oil pump and is used for respectively realizing the opening and closing of the oil pump by switching on and switching off; and a second electromagnetic valve connected with the clutch for switching the clutch on when the clutch is in the on gear and switching the clutch off when the clutch is in the off gear.

Optionally, the lifting system further comprises: and the air compressor is respectively connected with the first electromagnetic valve and the second electromagnetic valve so as to respectively convey compressed gas to the first electromagnetic valve and the second electromagnetic valve, and the compressed gas is used for realizing the connection and disconnection of the clutch and the gear switching of the first electromagnetic valve.

Optionally, the first electromagnetic valve is a three-position five-way electromagnetic valve, and the first electromagnetic valve further comprises a third electromagnetic valve gear for enabling the distributing valve to be in the third distributing valve gear when being in the third electromagnetic valve gear so as to cut off the communication between the oil inlet pipeline and the oil delivery pipeline and cut off the communication between the oil discharge pipeline and the oil delivery pipeline; and/or the second solenoid valve is a two-position three-way solenoid valve.

Optionally, the lifting system further comprises: and the proximity switch is connected with the first electromagnetic valve so as to enable the first electromagnetic valve to be switched to the second electromagnetic valve gear by sending a descending control signal to the first electromagnetic valve.

Optionally, the lifting cylinder comprises a first lifting cylinder and a second lifting cylinder, and the first lifting cylinder and the second lifting cylinder are connected with the distributing valve through oil delivery pipelines.

Optionally, a first filter is arranged in the oil inlet pipeline and is used for filtering hydraulic oil.

Optionally, a second filter is arranged in the oil discharge pipeline, and the second filter is used for filtering hydraulic oil.

A vehicle according to an embodiment of the second aspect of the utility model comprises a lifting system in the first aspect or in various implementations thereof.

One of the above technical solutions has at least the following advantages or beneficial effects:

for the lifting system provided by the embodiment of the utility model, the lifting cylinder can acquire hydraulic oil through the oil inlet pipeline to perform lifting operation, and can also discharge the hydraulic oil through the oil outlet pipeline to perform descending operation; lifting operation and descending operation can be controlled through the first electromagnetic valve without arranging an electromagnetic valve for controlling lifting operation and an electromagnetic valve for controlling descending operation respectively, so that the technical problem of complex structure caused by arranging a power supply circuit, an electric signal transmission circuit, a control circuit and the like for the two electromagnetic valves respectively can be solved, and the effect of reducing the circuit installation cost is achieved. In addition, the first electromagnetic valve can be used as a pilot valve, and the pilot valve controls the distribution valve to indirectly control the oil way, so that the separation of a circuit and the oil way can be realized, the probability of ignition caused by contact between the circuit and the oil way is reduced, the safety of a lifting system is improved, the probability of stable operation of the lifting system is increased, and the stability of the lifting system is improved.

The vehicle provided by the embodiment of the utility model is provided with the lifting system, and the vehicle provided with the lifting system has corresponding technical effects because the lifting system has the technical effects.

Drawings

Fig. 1 shows a schematic structural diagram of a lifting system according to an embodiment of the present utility model.

[ reference numerals description ]

100. An oil inlet pipeline; 200. an oil discharge pipeline; 300. an oil delivery pipeline; 110. a first filter; 210. a second filter; 1. a lifting cylinder; 11. a first lift cylinder; 12. a second lifting cylinder; 2. a dispensing valve; 3. a first electromagnetic valve; 4. a hydraulic oil tank; 5. an oil pump; 6. a clutch; 7. a second electromagnetic valve; 8. an air compressor; 9. and a proximity switch.

Detailed Description

The utility model will be better explained by the following detailed description of the embodiments with reference to the drawings.

As described above, the inventors have found in studies of lifting systems and vehicles that vehicles may typically be provided with lifting systems. The lifting operation can raise the height of the vehicle door, the seat, the engine cover, the trunk cover, the roof rack, the cargo box and other objects, and the lowering operation can lower the height of the objects. Solenoid valves may be provided as pilot valves to control the lifting operation and the lowering operation. However, existing lifting systems typically provide two solenoid valves, one for controlling lifting operations and the other for controlling lowering operations. Since two solenoid valves are provided, an electric signal transmission line, a control line, and a power supply line are required to be provided for each solenoid valve to realize electric signal transmission, transmission of compressed gas, and the like, and power supply. Specifically, when two solenoid valves are used as pilot valves to control the distribution valves, an electric signal transmission line needs to be provided for each solenoid valve, a control line such as a compressed gas transmission line needs to be provided for each solenoid valve, and a power supply line needs to be provided for each solenoid valve. Such a wiring arrangement would lead to a problem of complex structure. In addition, the existing lifting system is generally provided with a single lifting cylinder, and the problem of insufficient lifting force exists due to the arrangement of the single lifting cylinder; when a single lifting cylinder fails, lifting operation cannot be realized, resulting in a high failure rate.

In order to at least solve one of the technical problems in the prior art or related art, the utility model provides a lifting system and a vehicle. A lifting system and a vehicle according to some embodiments provided by the present utility model are described below with reference to fig. 1.

Referring to fig. 1, a lifting system according to an embodiment of the present utility model includes: an oil feed line 100 for the input of hydraulic oil; an oil discharge line 200 for discharging hydraulic oil; a lifting cylinder 1 for performing a lifting operation when hydraulic oil is input and performing a lowering operation when hydraulic oil is discharged; a distribution valve 2 connected to the lift cylinder 1 through an oil delivery line 300 and connected to the oil feed line 100 and the oil discharge line 200, respectively, for communicating the oil feed line 100 with the oil delivery line 300 when in the first distribution valve gear and communicating the oil discharge line 200 with the oil delivery line 300 when in the second distribution valve gear; a first solenoid valve 3 connected to the dispensing valve 2 for placing the dispensing valve 2 in a first dispensing valve position when in a first solenoid valve position and for placing the dispensing valve 2 in a second dispensing valve position when in a second solenoid valve position.

In an exemplary embodiment, the lifting cylinder 1 can contain hydraulic oil and has a piston, which can be pushed by the hydraulic oil in the lifting cylinder 1 with the oil pressure so that the piston can lift up an object; when the lift cylinder 1 loses hydraulic oil, the piston is retracted, so that an object pushed up by the piston can be reset along with the retraction of the piston or can be lowered by gravity.

In an exemplary embodiment, the gear of the first solenoid valve 3 may include a first solenoid valve gear and a second solenoid valve gear; the electromagnetic valve can comprise a control end and an output end, can be controlled by utilizing the principles of electromagnetic induction, resonance and the like, and can be correspondingly closed or opened by power supply or power failure of the control end; the output may control the opening and closing of the compressed gas line, e.g., when the output is closed, the compressed gas line is open; when the output is open, the compressed gas lines are in communication. The compressed gas may be fed to the distribution valve 2 when the compressed gas line is in communication, for example, may be switched to a first distribution valve gear when the distribution valve 2 gets compressed gas, and to a second distribution valve gear when the distribution valve 2 loses compressed gas.

Therefore, the lifting operation and the lowering operation can be controlled through the first electromagnetic valve 3 without arranging the electromagnetic valve for the lifting operation and the electromagnetic valve for the lowering operation respectively, so that the technical problem of complex structure caused by arranging lines for the two electromagnetic valves respectively is solved, and the effects of saving cost and reducing line complexity are achieved. The distribution valve 2 is matched with the first electromagnetic valve 3 serving as a pilot valve, so that the separation of a circuit and an oil way can be realized, and the safety and the stability of a lifting system are improved.

In an exemplary embodiment, unmanned operation may be implemented. Specifically, control may be performed by a main controller (e.g., a controller of a vehicle). When a sensor device such as a radar receives a position signal, for example, when a vehicle travels to a specific position, the main controller may acquire the position signal from the sensor device, thereby transmitting a lift operation control signal to the first solenoid valve 3 to switch the first solenoid valve 3 to the first solenoid valve gear; when receiving another position signal from a position sensor or the like, the main controller transmits a lowering operation control signal to the first solenoid valve 3 to switch the first solenoid valve 3 to the second solenoid valve gear. The unmanned operation is achieved by the above operation, and of course, in the unmanned operation, the control of the second solenoid valve 7 described below by the main controller is also required, as will be described in detail below.

Further, the lifting system further comprises: the hydraulic oil tank 4 is connected with the distribution valve 2 through an oil inlet pipeline 100 and an oil outlet pipeline 200 respectively and is used for storing hydraulic oil; an oil pump 5 is provided in the oil feed line 100 for flowing hydraulic oil from the hydraulic oil tank 4 to the distribution valve 2.

In an exemplary embodiment, the movement of the hydraulic oil can be driven by the oil pump 5 in order to achieve an input of hydraulic oil. The hydraulic oil tank 4 may be lower in height than the lifting cylinder 1 and the distribution valve 2 so that hydraulic oil may flow back into the hydraulic oil tank 4 by gravity. Through the oil inlet pipeline 100, the oil outlet pipeline 200 and the hydraulic oil tank 4, the cyclic utilization of hydraulic oil can be realized, and the aim of saving resources is achieved.

Further, the lifting system further comprises: a clutch 6 connected to the oil pump 5 for respectively turning on and off the oil pump 5 by turning on and off; a second solenoid valve 7 connected to the clutch 6 for switching the clutch 6 on when in the on-range and for switching the clutch 6 off when in the off-range.

In an exemplary embodiment, the on and off of the clutch 6 may be controlled by the second solenoid valve 7, and the oil pump 5 is turned on when the clutch 6 is on to power the hydraulic oil so that the hydraulic oil flows in the oil feed line 100; when the clutch 6 is disconnected, the oil pump 5 is turned off to stop the supply of power to the hydraulic oil. The clutch 6 can be controlled to be turned on and off by the gear shift of the second electromagnetic valve 7; the second solenoid valve 7 can realize gear switching based on the principles of electromagnetic induction, resonance, and the like. Through the cooperation of second solenoid valve 7 and clutch 6, can realize circuit and oil circuit separation, reduce the potential safety hazard, improve system operation stability.

In the unmanned state, the main controller can send a signal to the second electromagnetic valve 7 to enable the second electromagnetic valve 7 to be powered on or powered off, so that the second electromagnetic valve 7 is switched to a corresponding gear, conditions are provided for controlling the oil pump 5 in the unmanned state, and compared with the manual control clutch 6, the automatic control device has the effect of simplifying operation.

Further, the lifting system further comprises: an air compressor 8 connected with the first solenoid valve 3 and the second solenoid valve 7, respectively, to supply compressed gas to the first solenoid valve 3 and the second solenoid valve 7, respectively, the compressed gas being used to switch the clutch 6 on and off, and to switch the first solenoid valve 3 to a gear position.

In the exemplary embodiment, the air compressor 8 supplies compressed gas to the first solenoid valve 3 and the second solenoid valve 7, respectively, and the pressure of the compressed gas may change the gear positions of the first solenoid valve 3 and the second solenoid valve 7, thereby achieving the gear position switching. The circuit is isolated from the oil way through the control of compressed gas, so that potential safety hazards can be reduced, and the running stability of the system is improved.

Further, the first electromagnetic valve 3 is a three-position five-way electromagnetic valve, and the first electromagnetic valve 3 further comprises a third electromagnetic valve gear for enabling the distributing valve 2 to be in the third distributing valve gear when being in the third electromagnetic valve gear so as to cut off the communication between the oil inlet pipeline 100 and the oil delivery pipeline 300 and cut off the communication between the oil discharge pipeline 200 and the oil delivery pipeline 300; and/or the second solenoid valve 7 is a two-position three-way solenoid valve.

In the exemplary embodiment, the third solenoid valve gear and the three-way valve gear correspond to a hydraulic oil retaining state in which hydraulic oil does not flow, i.e., hydraulic oil is not input nor discharged, so that the lift cylinder 1 can be stopped at a predetermined height, more operation modes are provided, thereby making the control of the lift cylinder 1 more flexible and the lifting process smoother. The third solenoid valve gear and the three-way valve gear can be stopped when the lifting system fails and is powered off, so that the danger caused by the sudden falling of the lifting cylinder 1 is reduced.

Further, the lifting system further comprises: the proximity switch 9 is connected to the first solenoid valve 3 to switch the first solenoid valve 3 to the second solenoid valve position by sending a lowering control signal to the first solenoid valve 3.

In an exemplary embodiment, the falling control signal may be a level signal, such as a high level signal or a low level signal, so that the first solenoid valve 3 is powered on or powered off by the level signal. The proximity switch 9 can sense the approach of an object, judges the descending time of the lifting cylinder 1, improves the descending accuracy of the lifting cylinder 1, and reduces the probability of system faults and engineering accidents caused by descending errors of the lifting cylinder 1.

Further, the lifting cylinder 1 comprises a first lifting cylinder 11 and a second lifting cylinder 12, and the first lifting cylinder 11 and the second lifting cylinder 12 are connected with the distributing valve 2 through oil pipelines 300.

In the exemplary embodiment, since the first lift cylinder 11 and the second lift cylinder 12 share the oil line 300 for the input and the discharge of hydraulic oil, a cost saving effect can be achieved.

Further, the oil inlet pipe 100 is provided with a first filter 110, and the first filter 110 is used for filtering hydraulic oil.

Further, a second filter 210 is provided in the oil discharge line 200, and the second filter 210 is used for filtering hydraulic oil.

In an exemplary embodiment, impurities in the hydraulic oil can be filtered through the first filter 110 and the second filter 210, so that the probability of accident that the impurities block the pipeline and other mechanisms is reduced, and the effect of improving the operation stability of the lifting system is achieved.

In another embodiment, the lift system of the exemplary embodiment may be provided in a vehicle. The vehicle may be a manned vehicle, a cargo vehicle, a mining vehicle, etc., and the mining vehicle may be a coal mining vehicle, etc.

Because the vehicle provided in this embodiment has the lifting system provided in any one of the embodiments, the vehicle has all the beneficial effects of the lifting system provided in any one of the embodiments, and will not be described herein.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.

In the description of the present specification, the terms "one embodiment," "some embodiments," "example embodiments," "examples," "specific examples," or "some examples," etc., refer to a particular feature, structure, material, or characteristic described in connection with the embodiment or example as being included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the utility model.

Claims (10)

1. A lifting system, comprising:

an oil inlet pipeline (100) for inputting hydraulic oil;

an oil discharge line (200) for discharging hydraulic oil;

a lifting cylinder (1) for performing a lifting operation when hydraulic oil is input and performing a lowering operation when hydraulic oil is discharged;

a distribution valve (2) connected to the lift cylinder (1) by means of an oil line (300) and to the oil feed line (100) and the oil discharge line (200), respectively, for connecting the oil feed line (100) to the oil line (300) in a first distribution valve position and the oil discharge line (200) to the oil line (300) in a second distribution valve position;

a first solenoid valve (3) is connected to the dispensing valve (2) for placing the dispensing valve (2) in a first dispensing valve position when in the first solenoid valve position and for placing the dispensing valve (2) in a second dispensing valve position when in the second solenoid valve position.

2. The lift system of claim 1, further comprising:

the hydraulic oil tank (4) is connected with the distribution valve (2) through the oil inlet pipeline (100) and the oil outlet pipeline (200) respectively and is used for storing hydraulic oil;

and an oil pump (5) provided in the oil feed line (100) for flowing hydraulic oil from the hydraulic oil tank (4) to the distribution valve (2).

3. The lift system of claim 2, further comprising:

a clutch (6) connected with the oil pump (5) for respectively realizing the opening and closing of the oil pump (5) by switching on and off;

a second solenoid valve (7) connected to the clutch (6) for switching the clutch (6) on when in the on-range and for switching the clutch (6) off when in the off-range.

4. A lifting system as claimed in claim 3, further comprising:

an air compressor (8) respectively connected with the first electromagnetic valve (3) and the second electromagnetic valve (7) for respectively delivering compressed gas to the first electromagnetic valve (3) and the second electromagnetic valve (7), wherein the compressed gas is used for realizing the connection and disconnection of the clutch (6) and realizing the gear switching of the first electromagnetic valve (3).

5. A lifting system according to claim 3, characterized in that the first solenoid valve (3) is a three-position five-way solenoid valve, the first solenoid valve (3) further comprising a third solenoid valve position for placing the distribution valve (2) in a third distribution valve position when in the third solenoid valve position for shutting off the communication of the oil feed line (100) with the oil feed line (300) and for shutting off the communication of the oil drain line (200) with the oil feed line (300); and/or the second solenoid valve (7) is a two-position three-way solenoid valve.

6. The lift system of claim 1, further comprising:

and a proximity switch (9) connected with the first electromagnetic valve (3) so as to switch the first electromagnetic valve (3) to a second electromagnetic valve gear by sending a descending control signal to the first electromagnetic valve (3).

7. Lifting system according to claim 1, characterized in that the lifting cylinder (1) comprises a first lifting cylinder (11) and a second lifting cylinder (12), which first lifting cylinder (11) and second lifting cylinder (12) are each connected with the distribution valve (2) via the oil line (300).

8. Lifting system according to claim 1, characterized in that a first filter (110) is arranged in the oil feed line (100), which first filter (110) is used for filtering hydraulic oil.

9. Lifting system according to claim 1, characterized in that a second filter (210) is arranged in the oil discharge line (200), which second filter (210) is used for filtering hydraulic oil.

10. A vehicle, characterized by comprising:

lifting system according to any one of claims 1 to 9.