CN211494002U - Vehicle-mounted lifting mechanism and vehicle - Google Patents

Abstract

The present disclosure relates to a vehicle-mounted lifting mechanism and a vehicle. The vehicle-mounted lifting mechanism comprises a pumping mechanism, a supporting sleeve piece and a cylinder body fixedly arranged on a vehicle body. The cylinder body is provided with an accommodation chamber having a through-flow opening, and the support kit is provided with a first piston end. The first piston end is slidably inserted into the accommodation chamber and divides the accommodation chamber into a rod chamber and a rodless chamber. The circulation port is arranged on the side wall of the rodless cavity, and the pumping mechanism is communicated with the circulation port and used for supplying fluid into the accommodating cavity to push the support sleeve. Can lift the vehicle through this on-vehicle lifting mechanism, conveniently overhaul the bottom of vehicle, can not receive the restriction in place moreover, can start this on-vehicle lifting mechanism according to the maintenance demand, lift the vehicle to suitable position, improve the convenience that the vehicle overhauld.

Description

Vehicle-mounted lifting mechanism and vehicle

Technical Field

The disclosure relates to the technical field of vehicles, in particular to a vehicle-mounted lifting mechanism and a vehicle.

Background

At present, when the bottom of a vehicle needs to be maintained or checked, the vehicle needs to be driven onto a lifting machine, and the vehicle is lifted by the aid of an external lifting machine, so that a fixed place and fixed equipment are required. If the automobile chassis breaks down on the highway, the automobile needs to be transported to a maintenance station by means of a forklift and a trailer and placed in a lifting machine for maintenance, and the maintenance is long in time consumption and high in cost.

SUMMERY OF THE UTILITY MODEL

The purpose of this disclosure is to provide a vehicle-mounted lifting mechanism and vehicle, can lift the vehicle when needing.

In order to achieve the above object, the present disclosure provides an on-vehicle lifting mechanism, which includes a pumping mechanism, a supporting kit and a cylinder body for fixedly arranging on a vehicle body, the cylinder body is provided with an accommodating cavity having a flow port, the supporting kit is provided with a first piston end, the first piston end is slidably inserted into the accommodating cavity, and the accommodating cavity is divided into a rod cavity and a rodless cavity, the flow port is arranged on a side wall of the rodless cavity, the pumping mechanism is communicated with the flow port, and is used for supplying fluid to the accommodating cavity to push the supporting kit.

Optionally, the supporting suite includes first support piece and second support piece, the cylinder body first support piece with second support piece is from outside-in cover in proper order establishes, first piston end set up in the top of first support piece, first support piece is provided with the propelling movement chamber that has the intercommunicating pore, the intercommunicating pore will hold the chamber with propelling movement chamber intercommunication, second support piece is provided with second piston end, second piston end will the propelling movement chamber is separated for there being the pole chamber and no pole chamber, the intercommunicating pore set up in the lateral wall in no pole chamber, second piston end slidable set up in the propelling movement chamber.

Optionally, a first valve is disposed at the communication hole.

Optionally, the side wall of the rodless cavity of the first support is further provided with an exhaust port, the exhaust port is provided with a second valve, the first valve is a one-way valve, the first valve only allows fluid to enter the pushing cavity from the accommodating cavity, and the second valve at least allows fluid to enter the accommodating cavity from the pushing cavity.

Optionally, the number of the first supporting members is multiple, the multiple first supporting members are sequentially sleeved, and between two adjacent first supporting members, the first piston end of the first supporting member located on the inner side is slidably inserted into the pushing cavity of the first supporting member located on the outer side, and the second piston end of the second supporting member is inserted into the first supporting member located on the innermost side.

Optionally, a limiting block is convexly arranged on the inner wall of the rodless cavity of the cylinder body, and the limiting block is used for stopping the first piston end.

Optionally, the vehicle-mounted lifting mechanism further comprises a support base hinged to the bottom of the support suite.

Optionally, the bottom of the cylinder body and the bottom of the first support are respectively provided with a sealing member.

According to another aspect of the present disclosure, there is also provided a vehicle including the above vehicle-mounted lifting mechanism.

Optionally, the vehicle includes a controller and a level meter which are electrically connected, the number of the vehicle-mounted lifting mechanisms is four, and the vehicle-mounted lifting mechanisms are arranged at the bottom of the vehicle body at intervals, and the controller is electrically connected with the pumping mechanisms in the four vehicle-mounted lifting mechanisms respectively so as to adjust the amount of fluid pumped by each pumping mechanism respectively according to data of the level meter.

Through above-mentioned technical scheme, when need look over or maintain the vehicle bottom, start pumping mechanism, pumping mechanism supplies the fluid to the holding chamber in the cylinder body through the circulation mouth in, promotes first piston end under the effect of the pressure that the fluid produced to push out the support external member from the cylinder body, and make the support external member support on subaerial. Therefore, the vehicle can be lifted through the vehicle-mounted lifting mechanism, and the bottom of the vehicle is convenient to overhaul. And can not receive the restriction in place, can start this on-vehicle lifting mechanism according to the maintenance demand, lift the vehicle to suitable position, improve the convenience that the vehicle overhauld.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic view of a vehicle body mounted lift mechanism according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional schematic view of an embodiment of the vehicle lift mechanism of the present disclosure in a retracted state;

FIG. 3 is a cross-sectional schematic view of the vehicle lift mechanism with only the first support extended according to one embodiment of the present disclosure;

fig. 4 is a cross-sectional schematic view of a vehicle lift mechanism with first and second supports extended according to an embodiment of the present disclosure.

Description of the reference numerals

100-vehicle-mounted lifting mechanism; 10-a pumping mechanism; 20-a support kit; 21-a first support; 211-a first piston end; 212-communicating holes; 213-a push chamber; 214-a second via; 215-a drain; 22-a second support; 221-a second piston end; 30-cylinder body; 31-a containment chamber; 32-flow ports; 33-a limiting block; 34-a first via; 41-a first valve; 42-a second valve; 50-a seal; 43-a third valve; 44-a fourth valve; 60-supporting the base.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the use of directional terms such as "inner and outer" refers to the inner and outer of the profile of the relevant component, unless stated to the contrary. In addition, the terms "first", "second", and the like used in the embodiments of the present disclosure are for distinguishing one element from another, and have no order or importance.

According to one aspect of the present disclosure, as shown in fig. 1-4, an onboard lifting mechanism 100 and a vehicle are provided to lift the vehicle to a suitable height by the onboard lifting mechanism 100 when the bottom of the vehicle needs to be serviced.

The vehicle-mounted lifting mechanism 100 includes a pumping mechanism 10, a support kit 20, and a cylinder 30 for being fixedly disposed on a vehicle body. The cylinder block 30 is provided with an accommodation chamber 31 having a flow port 32, and the support member 20 is provided with a first piston end 211, the first piston end 211 being slidably inserted into the accommodation chamber 31 and dividing the accommodation chamber 31 into a rod chamber and a rodless chamber. A communication port 32 is provided in a side wall of the rodless chamber, and the pumping mechanism 10 communicates with the communication port 32 for supplying fluid into the housing chamber 31 to push the support member 20.

As shown in fig. 1, the cylinder 30 may be fixedly connected to the side member of the vehicle body by welding or screwing. When it is desired to view or repair the underside of the vehicle, as shown in fig. 2-4, the pumping mechanism 10 is actuated, the pumping mechanism 10 supplies fluid through the communication port 32 into the receiving chamber 31 in the cylinder 30, and the first piston end 211 is pushed by the pressure generated by the fluid, thereby pushing the support assembly 20 out of the cylinder 30 and supporting the support assembly 20 on the ground. Therefore, the vehicle can be lifted by the vehicle-mounted lifting mechanism 100, and the bottom of the vehicle can be conveniently overhauled. And can not be restricted by the place, can be according to the maintenance demand, start this on-vehicle lifting mechanism 100, lift the vehicle to suitable position, improved the convenience that the vehicle overhauld.

The pumping mechanism 10 is not limited in the present disclosure as long as it can supply fluid into the cylinder 30. The fluid pumped may be a gas or a liquid. For example, a pneumatic pump for pumping gas or a hydraulic pump for pumping liquid. Preferably, the pumping mechanism 10 is used to pump a gas. For convenience of description, the following description will be given taking a fluid as an example.

In one embodiment of the present disclosure, as shown in fig. 2-4, the support kit 20 includes a first support 21 and a second support 22. The cylinder 30, the first supporting member 21 and the second supporting member 22 are sequentially sleeved from the outside to the inside. The first piston end 211 is disposed at the top of the first support 21. The first support 21 is provided with a push chamber 213 having a communication hole 212, and the communication hole 212 communicates the accommodation chamber 31 with the push chamber 213. The second support 22 is provided with a second piston end 221, the second piston end 221 dividing the push chamber 213 into a rod chamber and a rodless chamber. The communication hole 212 is provided in a side wall of the rodless chamber, and the second piston end 221 is slidably provided in the push chamber 213.

When the vehicle bottom needs to be checked or maintained, the pumping mechanism 10 is started, the pumping mechanism 10 supplies fluid to the accommodating cavity 31 in the cylinder body 30 through the through hole 32, pushes the first support 21 to extend under the action of pressure generated by the fluid, and flows into the pushing cavity through the communication hole 212, pushes the second support to extend, and is supported on the ground through the second support, so that the vehicle is lifted.

By providing the first support member 21 and the second support member 22 so that they extend in sequence, the height at which the vehicle-mounted lifting mechanism 100 as a whole can be lifted can be increased. Further, when the first stay 21 and the second stay 22 are retracted, the overall height of the vehicle-mounted lift mechanism 100 can be reduced, and the occupied space can be reduced. Only the first support 21 (as shown in fig. 3) can be extended according to the height selection that needs to be lifted. Alternatively, to increase the lifting height, the first support 21 is extended and the second support 22 is extended (as shown in fig. 4).

Specifically, the first support 21 and the second support 22 are substantially T-shaped structures, and each includes a piston end and a piston rod, and the piston end is arranged to protrude in a radial direction of the piston rod.

Further, in one embodiment, as shown in fig. 2-4, a first valve 41 is disposed at the communication hole 212. By opening and closing the first valve 41, the protruding length of the second support 22 can be controlled when lifting, thereby enabling the in-vehicle lifting mechanism 100 to control the height of lifting of the vehicle.

In one embodiment, as shown in fig. 2 to 4, the side wall of the rodless chamber of the first support 21 is further provided with a discharge port 215, the discharge port 215 is provided with a second valve 42, the first valve 41 is a one-way valve, the first valve 41 only allows fluid to enter the push chamber 213 from the accommodating chamber 31, and the second valve 42 at least allows fluid to enter the accommodating chamber 31 from the push chamber 213. The second valve 42 may be a one-way valve that only allows fluid from the push chamber 213 to enter the receiving chamber 31, or may be a valve that allows fluid to flow in both directions when opened.

When the vehicle is lifted, the first valve 41 is closed and the second valve 42 is opened, and the gas in the accommodating chamber 31 enters the push chamber 213 through the first valve 41, so that the second support member 22 is extended. When the vehicle is lifted to a proper height, the gas supply is stopped, and the gas can be kept in the pushing cavity 213 of the first support member 21 due to the direction cut-off of the first valve 41, so that the extending position of the second support member 22 can be locked to avoid the vehicle from sinking under force.

When it is necessary to retract the support member 20, the second valve 42 is opened, and the gas in the push chamber 213 enters the accommodating chamber 31 through the communication hole 212 and is discharged through the flow port 32.

Further, the pumping mechanism 10 may further have a suction function, when it is required to retract the first support 21 and the second support 22, the pumping mechanism 10 is activated to suck out the gas in the accommodating chamber 31 and the push chamber through the flow port 32, so as to retract the support member set 20.

Further, an intake pipe and an exhaust pipe are provided between the pumping mechanism 10 and the circulation port 32, the intake pipe is provided with a third valve 43, and the exhaust pipe is provided with a fourth valve 44. The air inlet pipe may be in communication with a pneumatic pump and the air outlet pipe may be in communication with an air extraction pump.

When the vehicle needs to be lifted, the third valve 43 is opened, and the fourth valve 44 is closed, so that air is introduced into the cylinder 30 through the through hole 32; when it is desired to retract the support assembly 20, the fourth valve 44 is opened and the third valve 43 is closed to draw air from the cylinder 30 through the flow port 32.

In other embodiments, an exhaust valve communicating with the outside may be further provided on the pipeline between the pumping mechanism 10 and the flow port 32, and the gas in the accommodating chamber 31 and the push chamber is exhausted by opening the exhaust valve.

In order to expand the adjustable range of the lifting height, the number of the first supports 21 is plural. The plurality of first supporting members 21 are sequentially sleeved, and between two adjacent first supporting members 21, the first piston end 211 of the first supporting member 21 located at the inner side is slidably inserted into the pushing cavity 213 of the first supporting member 21 located at the outer side, and the second piston end 221 of the second supporting member 22 is inserted into the innermost first supporting member 21.

Through the multistage first support 21 that sets up in proper order, can further increase the height that on-vehicle lifting mechanism 100 can lift, improve the convenience to the maintenance of the bottom of vehicle.

The specific number of the first supports 21 is not limited in the present disclosure, and may be set according to the height to be lifted. One first support 21 may be provided as shown in fig. 2-4 only. A plurality of first supporting members 21 may be provided to be nested with each other.

As shown in fig. 2 to 4, a stopper 33 is protrudingly provided on an inner wall of the rodless chamber of the cylinder block 30, and the stopper 33 serves to stop the first piston end 211. The limit block 33 can limit the maximum retraction displacement of the first support 21, so as to prevent the first support 21 from impacting the inner wall of the cylinder 30 when retracted, and prevent the support base 60 connected to the lower end of the support sleeve 20 from impacting the lower end of the support sleeve 20 when retracted.

Further, the number of the limiting blocks 33 is two, and the two limiting blocks are oppositely arranged on the inner side wall of the cylinder body 30. Alternatively, the stop 33 is an annular structure disposed around the inner sidewall of the cylinder 30. The strength of the limiting block 33 is higher, and the limiting block 33 is prevented from being damaged when the first support member 21 retracts.

To increase stability of the lifting of the vehicle, the on-board lift mechanism 100 further includes a support base 60, as shown in fig. 2-4. The support base 60 is hinged to the bottom of the support assembly 20.

The cross-sectional area of the bottom surface of the supporting base 60 is larger than that of the supporting sleeve member 20, the contact area with the ground can be increased on the one hand by setting the supporting base 60, so that the supporting is more stable, and on the other hand, the supporting base 60 is hinged to the supporting sleeve member 20, so that the supporting angle can be adjusted, the supporting base 60 is convenient to support on the uneven ground, and the lifting of the vehicle is more stable.

As shown in fig. 2 to 4, the bottom of the cylinder 30 is provided with a first through hole 34, the first supporter 21 protrudes from the receiving chamber 31 through the first through hole 34, the bottom of the first supporter 21 is provided with a second through hole 214, and the second supporter 22 protrudes from the push chamber 213 through the second through hole 214.

In order to avoid gas leakage from the rodless cavity of the cylinder 30 or the first support 21, a seal 50 is also provided. The bottom of the cylinder 30 or the bottom of the first supporter 21 is provided with a sealing member 50, respectively. The seal 50 may be a seal ring or a labyrinth seal, or the like. By providing the sealing member 50, the gas in the accommodating chamber 31 of the cylinder 30 and the rodless chamber of the first support 21 can be prevented from leaking, and the reliability of the lifting can be improved. As shown in fig. 4, when the vehicle is lifted to the maximum height, the first piston end 211 and the second piston end 221 are both abutted against the sealing member 50, and gas leakage can be prevented due to the sealing action of the sealing member 50, so that the vehicle sinking caused by the retraction of the first support member 21 and the second support member 22 can be prevented.

According to another aspect of the present disclosure, a vehicle is also provided, which includes the above vehicle-mounted lifting mechanism 100. Further, the vehicle includes a controller and a level that are electrically connected. As shown in fig. 1, the number of the vehicle-mounted lifting mechanisms 100 is four, and the vehicle-mounted lifting mechanisms are arranged at the bottom of the vehicle body at intervals. The controller is electrically connected to each of the pumping mechanisms 10 in the four on-board lift mechanisms 100 to individually adjust the amount of fluid pumped by each pumping mechanism 10 based on the data from the level. Specifically, the first valve 41, the second valve 42, the third valve 43, and the fourth valve 44 are all electrically controlled valves, and are respectively electrically connected to a controller, and the controller can control the valves to open and close.

The control process is roughly as follows: each pumping mechanism 10 is actuated by commanding the controller to raise the body via a lift button or the like provided on the vehicle, and the third valve 43 and the first valve 41 are opened (the second valve 42 and the fourth valve 44 are closed) to vent the interior of the support assembly 20. Meanwhile, the controller receives data in the level gauge, and adjusts the ventilation volume in each support sleeve 20 according to the data of the level gauge so as to adjust the extension length of each support sleeve 20 until the level gauge detects that the vehicle body is basically horizontal, and then the vehicle body can reach the lifting position. When the vehicle body needs to be lowered, the controller receives a reset command, closes the first valve 41 and the third valve 43, and opens the second valve 42 and the fourth valve 44, and draws air from the support kit 20 through the pumping mechanism 10, thereby lowering the vehicle body. Therefore, the vehicle is not limited by the field due to the vehicle-mounted lifting mechanism 100, the vehicle-mounted lifting mechanism 100 can be started according to the maintenance requirement, the vehicle is lifted to a proper position, and the convenience of vehicle maintenance is improved.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. The vehicle-mounted lifting mechanism is characterized by comprising a pumping mechanism (10), a supporting sleeve member (20) and a cylinder body (30) fixedly arranged on a vehicle body, wherein the cylinder body (30) is provided with an accommodating cavity (31) with a flow port (32), the supporting sleeve member (20) is provided with a first piston end (211), the first piston end (211) is slidably inserted into the accommodating cavity (31) and divides the accommodating cavity (31) into a rod cavity and a rodless cavity, the flow port (32) is arranged on the side wall of the rodless cavity, and the pumping mechanism (10) is communicated with the flow port (32) and used for supplying fluid into the accommodating cavity (31) to push the supporting sleeve member (20).

2. A vehicle lifting mechanism according to claim 1, wherein the support kit (20) comprises a first support (21) and a second support (22), the cylinder body (30), the first supporting piece (21) and the second supporting piece (22) are sleeved in sequence from outside to inside, the first piston end (211) is arranged at the top of the first support (21), the first support member (21) is provided with a push chamber (213) having a communication hole (212), the communication hole (212) communicating the housing chamber (31) with the push chamber (213), the second support (22) is provided with a second piston end (221), the second piston end (221) dividing the push chamber (213) into a rod chamber and a rodless chamber, the communication hole (212) is arranged on the side wall of the rodless cavity, and the second piston end (221) is slidably arranged in the pushing cavity (213).

3. A vehicle lifting mechanism according to claim 2, characterized in that a first valve (41) is provided at the communication hole (212).

4. A vehicle lifting mechanism according to claim 3, wherein a discharge port (215) is further provided on a side wall of the rodless chamber of the first support (21), the discharge port (215) is provided with a second valve (42), the first valve (41) is a one-way valve, and the first valve (41) only allows fluid to enter the push chamber (213) from the accommodating chamber (31), and the second valve (42) at least allows fluid to enter the accommodating chamber (31) from the push chamber (213).

5. The vehicle-mounted lifting mechanism according to claim 2, wherein the number of the first supporting members (21) is plural, the plural first supporting members (21) are sequentially sleeved, and between two adjacent first supporting members (21), the first piston end (211) of the first supporting member (21) located at the inner side is slidably inserted into the pushing cavity (213) of the first supporting member (21) located at the outer side, and the second piston end (221) of the second supporting member (22) is inserted into the first supporting member (21) located at the innermost side.

6. A vehicle lifting mechanism according to any of claims 1-5, characterized in that the inner wall of the rodless cavity of the cylinder (30) is convexly provided with a stopper (33), the stopper (33) being adapted to stop the first piston end (211).

7. A vehicle lifting mechanism according to any of claims 1-5, characterized in that the vehicle lifting mechanism (100) further comprises a support base (60), the support base (60) being hinged to the bottom of the support kit (20).

8. A vehicle carried lifting mechanism according to any of claims 2-5, characterized in that the bottom of the cylinder (30) and the bottom of the first support (21) are provided with a seal (50), respectively.

9. A vehicle, characterized in that it comprises an onboard lifting mechanism (100) according to any one of claims 1-8.

10. The vehicle of claim 9, characterized in that the vehicle comprises a controller and a level gauge which are electrically connected, the number of the vehicle-mounted lifting mechanisms (100) is four, and the vehicle-mounted lifting mechanisms are arranged at intervals at the bottom of the vehicle body, and the controller is respectively electrically connected with the pumping mechanisms (10) in the four vehicle-mounted lifting mechanisms (100) so as to respectively adjust the amount of fluid pumped by each pumping mechanism (10) according to the data of the level gauge.

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