CN209761887U - self-balancing hydraulic lifting support device - Google Patents
self-balancing hydraulic lifting support device Download PDFInfo
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- CN209761887U CN209761887U CN201920375959.1U CN201920375959U CN209761887U CN 209761887 U CN209761887 U CN 209761887U CN 201920375959 U CN201920375959 U CN 201920375959U CN 209761887 U CN209761887 U CN 209761887U
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- oil
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- hydraulic lifting
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Abstract
the utility model discloses a self-balancing hydraulic lifting support device, which comprises a plurality of hydraulic lifting mechanisms, an oil conveying pipeline and an oil pump, wherein each hydraulic lifting mechanism comprises a hydraulic cylinder, and each hydraulic cylinder is communicated with the oil conveying pipeline; when the oil pump stops supplying oil to the oil pipeline, each hydraulic control one-way valve is shut off; when the oil pump withdraws the oil in the oil pipeline, each hydraulic control one-way valve is conducted reversely. The utility model discloses a self-balancing hydraulic pressure elevating gear supports when the car as a house, can be so that four hydraulic pressure elevating system remain unanimous throughout to avoid appearing four elevating system independent control and make four elevating system's the high inconsistent and lead to the car as a house condition that the slope takes place.
Description
Technical Field
The utility model relates to a self-balancing hydraulic pressure lift strutting arrangement.
Background
when the car as a house is parked, the car as a house needs to be supported, so that the car as a house is stable. The prior device for supporting the motor home generally comprises four lifting mechanisms which are respectively arranged at four corner positions at the bottom of the motor home, when the caravan is parked, the four lifting mechanisms are unfolded to enable the supporting seats on the four lifting mechanisms to be abutted against the ground, so that the four lifting mechanisms can support the caravan, however, the existing lifting mechanisms are generally controlled independently, that is, when a car as a house is parked, four lifting mechanisms need to be lifted and lowered respectively, therefore, the lifting heights of the four lifting mechanisms are difficult to be completely consistent, the tilting of the motor home can be caused by the inconsistent lifting heights of the four lifting mechanisms, the lifting heights of the lifting mechanisms are required to be adjusted, so that the lifting height of four lifting mechanisms tends to be consistent, and the adjustment may need to be carried out for many times, so that the operation is troublesome when the caravan is parked.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a self-balancing hydraulic pressure lift strutting arrangement is provided, it makes a plurality of hydraulic pressure elevating system move when going up and down in step to make a plurality of hydraulic pressure elevating system's the lift height remain unanimous all the time.
in order to solve the technical problem, the utility model provides a self-balancing hydraulic pressure lift strutting arrangement, it includes:
The hydraulic lifting mechanism comprises a plurality of hydraulic lifting mechanisms, and each hydraulic lifting mechanism comprises a hydraulic cylinder;
Each hydraulic cylinder is communicated with the oil conveying pipeline;
The oil pump is used for supplying oil to the oil pipeline and withdrawing the oil in the oil pipeline;
The hydraulic control check valves are arranged on the oil path between each hydraulic cylinder and the oil conveying pipeline, and are communicated when the oil pump supplies oil to the oil conveying pipeline; when the oil pump stops supplying oil to the oil pipeline, each hydraulic control one-way valve is shut off; when the oil pump withdraws the oil in the oil pipeline, each hydraulic control one-way valve is conducted reversely.
Preferably, each pilot operated check valve comprises:
An oil supply path connected in series to an oil path between the hydraulic cylinder and the oil delivery path;
A valve core;
A control oil path communicated with the oil pipeline;
And the control assembly can push the valve core to move to enable the oil supply oil way to be conducted reversely when the pressure of the control oil way is smaller than a set value.
preferably, the control assembly comprises:
A piston moving in a first direction by the oil pressure of the control oil passage;
The spring is used for driving the piston to move towards a second direction, and the first direction and the second direction are opposite directions;
A push rod connected to the piston for pushing the valve core to move when the piston moves in the second direction.
Preferably, each hydraulic lifting mechanism further comprises a mounting seat for mounting on the object to be supported, a supporting seat, a first supporting rod, a second supporting rod, a guide seat and a sliding seat, the hydraulic cylinder is mounted on the mounting seat, one end of the first supporting rod is hinged to the mounting seat, the other end of the first supporting rod is hinged to the second supporting rod, the guide seat is fixedly connected with the mounting seat, the guide seat extends along the axis direction of a piston rod of the hydraulic cylinder, the sliding seat is slidably arranged on the guide seat, the piston rod of the hydraulic cylinder is connected with the sliding seat, one end of the second supporting rod is hinged to the sliding seat, and the other end of the second supporting rod is hinged to the supporting seat.
preferably, the hydraulic lifting mechanism further comprises a magnet, the magnet is mounted on the first support rod or the second support rod, when the magnet is mounted on the first support rod and the hydraulic lifting mechanism is folded, the second support rod and the magnet are attracted, and when the magnet is mounted on the second support rod and the hydraulic lifting mechanism is folded, the first support rod and the magnet are attracted.
Preferably, the hydraulic lifting mechanisms in the self-balancing hydraulic lifting supporting device are four, and the four hydraulic lifting mechanisms are respectively installed at four corners of the bottom of the caravan and are used for supporting the caravan during parking of the caravan.
After the structure more than adopting, compared with the prior art, the utility model, have following advantage:
The self-balancing hydraulic lifting device of the utility model comprises a plurality of hydraulic lifting mechanisms, the hydraulic cylinder in each hydraulic lifting mechanism is supplied with oil by an oil pump through an oil conveying pipeline, thus, when the oil pump supplies oil, the oil pressure in the hydraulic cylinders in the hydraulic lifting mechanisms is the same, thereby the action strokes of the piston rods of the hydraulic cylinders in the hydraulic lifting mechanisms are completely synchronous, thereby the lifting heights of the hydraulic lifting mechanisms are always kept consistent, thus, when the self-balancing hydraulic lifting device of the utility model is used for supporting a motor home, four hydraulic lifting mechanisms are respectively arranged at four corners at the bottom of the motor home, when the motor home is parked, the oil is conveyed to the hydraulic cylinders in the four hydraulic lifting mechanisms through the oil pump, the lifting heights of the four hydraulic lifting mechanisms are always kept consistent when the motor home is moved, thereby the supporting heights of the four hydraulic lifting mechanisms to the motor home are always kept consistent, the situation that the motor home is inclined due to inconsistent lifting heights of the four lifting mechanisms due to independent control of the four lifting mechanisms is avoided.
Drawings
FIG. 1 is a schematic structural view of a hydraulic lifting mechanism;
FIG. 2 is a cross-sectional view of the hydraulic lift mechanism;
Fig. 3 is a hydraulic pipeline diagram of the self-balancing hydraulic lifting support device of the present invention;
Fig. 4 is a schematic structural diagram of a pilot operated check valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, 2 and 3, the self-balancing hydraulic lifting support device of the present embodiment includes a plurality of hydraulic lifting mechanisms 1, an oil pipeline 2 and an oil pump 3.
each hydraulic lifting mechanism 1 comprises a hydraulic cylinder 101, a mounting seat 102 for mounting on an object to be supported, a supporting seat 103, a first supporting rod 104, a second supporting rod 105, a guiding seat 106 and a sliding seat 107, the hydraulic cylinder 101 is mounted on the mounting seat 102, one end of the first supporting rod 104 is hinged with the mounting seat 102, the other end of the first supporting rod 104 is hinged with the second supporting rod 105, the hinged point of the first supporting rod 104 and the second supporting rod 105 is located at the middle position of the second supporting rod 105, the guiding seat 106 is fixedly connected with the mounting seat 102, the guiding seat 106 extends along the axial direction of the piston rod of the hydraulic cylinder 101, the sliding seat 107 is slidably arranged on the guiding seat 106, the sliding seat 107 can slide back and forth along the length direction of the guiding seat 106, the piston rod of the hydraulic cylinder 101 is connected with the sliding seat 107, so that the hydraulic cylinder 101 can drive the sliding seat 107 to slide back and forth along the length direction of the guiding seat 106, one end of the second support rod 105 is hinged to the sliding seat 107, and the other end of the second support rod 105 is hinged to the support seat 103, so that, referring to fig. 1 and 2, when the piston rod of the hydraulic cylinder 101 retracts, the support seat 103 moves downward to enable the hydraulic lifting mechanism to be unfolded, and when the hydraulic cylinder 101 extends forward, the support seat 103 moves upward to enable the hydraulic lifting mechanism to be folded.
The hydraulic lifting mechanism 1 further comprises a magnet 108, the magnet 108 is mounted on the first support rod 104 or the second support rod 105, when the magnet 108 is mounted on the first support rod 104 and the hydraulic lifting mechanism is folded, the second support rod 105 is attracted with the magnet 108, at this time, the first support rod 104 and the second support rod 105 can be prevented from rotating due to vibration or gravity of the support base 103 and the like, and misoperation of the hydraulic lifting mechanism 1 can be avoided; similarly, when the magnet 108 is mounted on the second support rod 105 and the hydraulic lifting mechanism is folded, the first support rod 104 and the magnet 108 are attracted, so that the first support rod 104 and the second support rod 105 can be prevented from rotating due to vibration or gravity of the support seat 103, and the like, and the hydraulic lifting mechanism 1 can be prevented from misoperation.
the cylinder barrel of each hydraulic cylinder 101 is communicated with the oil conveying pipeline 2, so that the cylinder barrels of the hydraulic cylinders 101 are communicated through the oil conveying pipeline 2, the oil pressure in the cylinder barrel of each hydraulic cylinder 101 is kept consistent, the oil pump 3 is used for supplying oil to the oil conveying pipeline 2 and withdrawing oil in the oil conveying pipeline 2, and the oil circuit between each hydraulic cylinder 101 and the oil conveying pipeline 2 is provided with a hydraulic control one-way valve 4, so that when the oil pump 3 supplies oil to the oil conveying pipeline 2, the oil supply oil circuit of the hydraulic control one-way valve 4 is communicated, the oil is conveyed to the cylinder barrel of each hydraulic cylinder 101 through the hydraulic control one-way valve 4, the oil pressure in the cylinder barrel of each hydraulic cylinder 101 is consistent at the moment, and the action strokes of the piston rods; when the oil pump 3 stops supplying oil to the oil conveying pipeline 2, the oil supply channel of the hydraulic control one-way valve 4 is closed, so that oil in the cylinder barrel of each hydraulic cylinder 101 is locked, the oil pressure in the cylinder barrel of each hydraulic cylinder 101 is kept unchanged, and the position of the piston rod of each hydraulic cylinder 101 can be kept unchanged at the moment; when oil pump 3 withdraws fluid through defeated oil pipe way 2, hydraulic control check valve 4 reverse conduction for fluid in the cylinder of pneumatic cylinder 101 can flow to defeated oil pipe way 2 through hydraulic control check valve 4 this moment, makes fluid in the cylinder of pneumatic cylinder 101 can be withdrawed by oil pump 3.
As shown in fig. 4, each pilot-controlled check valve 4 includes an oil supply path 409, a control path 411, a valve core 404, and a control assembly, the oil supply path 409 is connected in series to the oil path between the hydraulic cylinder 101 and the oil delivery pipe 2, the valve core 404 is movably disposed on the oil supply path 409, the control path 411 is communicated with the oil delivery pipe 2, and the control assembly can push the valve core 404 to move to make the oil supply path 409 reversely conducted when the pressure of the control path 411 is smaller than a set value, so that when the oil pump 3 withdraws oil through the oil delivery pipe 2, the oil pressure in the control path 411 gradually decreases, and when the oil pressure in the control path 411 decreases to be smaller than the set value, the control assembly pushes the valve core 404 to move to make the oil supply path 409 reversely conducted.
The control assembly comprises a valve body 410, a piston 406, a spring 407, a push rod 405 and a plurality of gaskets 408 are arranged in the valve body 410, the plurality of gaskets 408 are arranged at the rear end of the valve body 410 in a stacked manner, the push rod 405 is connected to a first surface of the piston 406, one end of the spring 407 abuts against a second surface of the piston 406, the other end of the spring 407 abuts against the gasket 408, the thrust of the spring 407 on the piston 406 can be adjusted by adjusting the number of the gaskets 408, when the oil pump 3 supplies oil to the oil pipeline 2, a part of oil flows into the valve body 410 through a control oil passage 411, the oil applies pressure to the piston 406, so that the piston 406 moves towards the rear end of the valve body 410, at the moment, the spring 407 is compressed, the push rod 405 retracts, and at the moment, the push rod 405 cannot be in contact with; when the oil pump 3 stops supplying oil to the oil pipeline 2, the pressure of the oil on the piston 406 is kept unchanged, so that the state of the push rod 405 is kept unchanged; when the oil pump 3 withdraws the oil in the oil pipeline 2, the oil in the valve body 410 flows back to the oil pipeline 2 through the control oil passage 411, so that the pressure applied by the oil in the valve body 410 to the piston 406 gradually decreases, when the pressure is smaller than the thrust of the spring 407 to the piston 406, the spring 407 pushes the piston 406 to move towards the front end of the valve body 410, so that the push rod 405 extends forwards, the push rod 405 extends forwards and then can push the valve core 404 to move, so that the oil supply oil passage 409 of the hydraulic control one-way valve 4 is conducted in the reverse direction, and at this time, the oil in the hydraulic cylinder 101 can flow back to the oil pipeline 2 through the oil supply oil passage 409 of the hydraulic control one-way valve 4 and then be.
In specific application, the self-balancing hydraulic lifting support device of the embodiment can be applied to support a recreational vehicle, at this time, four hydraulic lifting mechanisms are arranged in the self-balancing hydraulic lifting support device, the four hydraulic lifting mechanisms are respectively arranged at four corners of the bottom of the recreational vehicle and are used for supporting the recreational vehicle when the recreational vehicle is parked, after the recreational vehicle is parked, the oil pump 3 supplies oil to the hydraulic cylinders 101 of the four hydraulic lifting mechanisms 1 through the oil conveying pipeline 2, so that the piston rods of the four hydraulic cylinders 101 are synchronously retracted, the four hydraulic lifting mechanisms 1 are synchronously unfolded, the supporting seats 103 on the four hydraulic lifting mechanisms 1 are synchronously moved downwards until the four supporting seats 103 are all in contact with the ground, then the oil pump 3 stops supplying oil, the four hydraulic lifting mechanisms 1 can stably support the recreational vehicle, when the recreational vehicle is about to be driven, the oil pump 3 recovers oil through the oil conveying pipeline 2, the hydraulic cylinders 101 on the four hydraulic lifting mechanisms 1 are synchronously extended forwards, so that the supporting seats 103 on the four hydraulic lifting mechanisms 1 are synchronously moved upwards until the four hydraulic lifting mechanisms 1 are completely folded.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention, but should not be construed as limiting the claims, and the present invention is not limited to the above-described embodiments, but may be modified in various ways. In summary, all changes that can be made within the scope of the independent claims of the present invention are within the scope of the present invention.
Claims (5)
1. the utility model provides a self-balancing hydraulic pressure lift strutting arrangement which characterized in that, it includes:
The hydraulic lifting device comprises a plurality of hydraulic lifting mechanisms (1), wherein each hydraulic lifting mechanism (1) comprises a hydraulic cylinder (101);
the oil conveying pipeline (2), and each hydraulic cylinder (101) is communicated with the oil conveying pipeline (2);
The oil pump (3) is used for supplying oil to the oil conveying pipeline (2) and recovering the oil in the oil conveying pipeline (2);
the hydraulic control system comprises hydraulic cylinders (101), an oil pipeline (2), an oil pump (3), a hydraulic control one-way valve (4), a hydraulic control valve (4) and a hydraulic control valve (4), wherein the hydraulic control one-way valve (4) is communicated when the oil pump (3) supplies oil to the oil pipeline (2); when the oil pump (3) stops supplying oil to the oil pipeline (2), each hydraulic control one-way valve (4) is shut off; when the oil pump (3) withdraws oil in the oil pipeline (2), each hydraulic control one-way valve (4) is conducted reversely.
2. The self-balancing hydraulic lift support of claim 1, wherein: each pilot operated check valve (4) comprises:
An oil supply path (409) connected in series to the oil path between the hydraulic cylinder (101) and the oil delivery pipeline (2);
A valve element (404);
a control oil path (411) communicated with the oil pipeline (2);
And the control assembly can push the valve core (404) to move when the pressure of the control oil path (411) is smaller than a set value so as to lead the oil supply path (409) to be conducted reversely.
3. the self-balancing hydraulic lift support of claim 2, wherein: the control assembly comprises:
a piston (406) that moves in a first direction by receiving the oil pressure of the control oil passage (411);
A spring (407) for driving the piston (406) to move in a second direction, the first direction and the second direction being opposite directions;
a push rod (405) coupled to the piston (406) for pushing the valve element (404) to move when the piston (406) moves in the second direction.
4. The self-balancing hydraulic lift support of claim 1, wherein: each hydraulic lifting mechanism (1) also comprises a mounting seat (102) for mounting on an object to be supported, a supporting seat (103), a first supporting rod (104), a second supporting rod (105), a guide seat (106) and a sliding seat (107), pneumatic cylinder (101) are installed on mount pad (102), the one end and mount pad (102) of first bracing piece (104) are articulated mutually, the other end and second bracing piece (105) of first bracing piece (104) are articulated mutually, guide holder (106) and mount pad (102) fixed connection, guide holder (106) extend along the axis direction of the piston rod of pneumatic cylinder (101), sliding seat (107) slidable sets up on guide holder (106), the piston rod of pneumatic cylinder (101) is connected with sliding seat (107), the one end and the sliding seat (107) of second bracing piece (105) are articulated mutually, the other end and the supporting seat (103) of second bracing piece (105) are articulated mutually.
5. the self-balancing hydraulic lift support of claim 4, wherein: the hydraulic lifting mechanism (1) further comprises a magnet (108), the magnet (108) is installed on the first supporting rod (104) or the second supporting rod (105), when the magnet (108) is installed on the first supporting rod (104) and the hydraulic lifting mechanism is folded, the second supporting rod (105) is attracted with the magnet (108), and when the magnet (108) is installed on the second supporting rod (105) and the hydraulic lifting mechanism is folded, the first supporting rod (104) is attracted with the magnet (108).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920375959.1U CN209761887U (en) | 2019-03-22 | 2019-03-22 | self-balancing hydraulic lifting support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920375959.1U CN209761887U (en) | 2019-03-22 | 2019-03-22 | self-balancing hydraulic lifting support device |
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| Publication Number | Publication Date |
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| CN209761887U true CN209761887U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920375959.1U Active CN209761887U (en) | 2019-03-22 | 2019-03-22 | self-balancing hydraulic lifting support device |
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| CN (1) | CN209761887U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899331A (en) * | 2019-03-22 | 2019-06-18 | 宁波中天海德液压有限公司 | Self-balancing hydraulic lifting support device and its application |
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2019
- 2019-03-22 CN CN201920375959.1U patent/CN209761887U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899331A (en) * | 2019-03-22 | 2019-06-18 | 宁波中天海德液压有限公司 | Self-balancing hydraulic lifting support device and its application |
| CN109899331B (en) * | 2019-03-22 | 2024-04-12 | 宁波中天海德液压有限公司 | Self-balancing hydraulic lifting supporting device and application thereof |
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