CN213176228U - Hydraulic lifting device and vehicle - Google Patents
Hydraulic lifting device and vehicle Download PDFInfo
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- CN213176228U CN213176228U CN202022045729.4U CN202022045729U CN213176228U CN 213176228 U CN213176228 U CN 213176228U CN 202022045729 U CN202022045729 U CN 202022045729U CN 213176228 U CN213176228 U CN 213176228U
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Abstract
The utility model discloses a hydraulic pressure lifting devices and vehicle belongs to vehicle technical field. The vehicle comprises a hydraulic lifting device, wherein the hydraulic lifting device comprises a hydraulic cylinder, an integrated pump and an oil pipe assembly, the hydraulic cylinder adopts a non-differential mode, and the hydraulic cylinder adopts a backward-tilting arrangement mode; the integrated pump comprises a manual pump, an electric pump and a switch assembly which are integrated into a whole, the manual pump is connected with the electric pump, the switch assembly is electrically connected with the electric pump, and the switch assembly is used for controlling the electric pump to be turned on and off; the oil pipe assembly is connected between the integrated pump and the hydraulic cylinder. The hydraulic system pressure of the hydraulic lifting device is small, the damage of functional parts inside the hydraulic cylinder is avoided, and the outer diameter of the hydraulic cylinder is small; the pipeline connection is simple, the problem of arrangement space shortage is avoided, and the risks of oil leakage, failure and the like are low; the turnover angle of the vehicle cab can be increased, so that the cab of the vehicle can be turned over to pass through the center of gravity, and the maintenance of core components such as an engine and the like is facilitated.
Description
Technical Field
The utility model relates to the technical field of vehicles, especially, relate to a hydraulic pressure lifting device and vehicle.
Background
In the daily use of a vehicle cab, in order to ensure the performability of maintenance on core components such as an engine, a hydraulic lifting device is generally required to lift the cab and turn the cab to a certain angle so as to realize the maintenance on the core components such as the engine.
Most of the existing domestic vehicles use backward tilting differential hydraulic cylinders, independent manual pumps, independent electric pumps and independent switch type hydraulic lifting devices, and the internal hydraulic system of the device has high pressure, easily causes damage to internal functional parts of the hydraulic cylinders, and has larger external diameters of the hydraulic cylinders; a fixed bolster for supporting independent manual pump, independent electric pump and independent switch is more to be unfavorable for whole car lightweight, and lead to the pipe connection complicacy, make arrangement space nervous, risk such as oil leak, inefficacy is high. A small part of hydraulic lifting devices adopt forward-leaning differential hydraulic cylinders or forward-leaning non-differential mechanical hydraulic cylinders, independent manual pumps, independent electric pumps and independent switches, although the hydraulic lifting devices can guarantee smaller hydraulic system pressure, the design size and the extension of the hydraulic cylinders are limited due to the fact that various parts such as an engine and the like are arranged at the positions where the forward-leaning hydraulic cylinders face, so that the turnover angle is limited, the cab is difficult to turn over and pass through the center of gravity, maintenance is not facilitated, potential safety hazards exist, and the problem of repeated swinging exists when the cab is turned over; the fixed bolster is equally more be unfavorable for whole car lightweight, and the pipe connection is equally complicated easily leads to arranging the space nervous, and the risk such as oil leak, inefficacy is high.
Therefore, there is a need for a hydraulic lifting device and a vehicle with a hydraulic system having a small pressure, a small amount of materials such as a fixed bracket, etc. used, a simple pipeline connection, and an increased vehicle cab tilting angle, so as to solve the above technical problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hydraulic lifting device and a vehicle, wherein the hydraulic system of the hydraulic lifting device has small pressure, and the damage of internal functional parts of a hydraulic cylinder is avoided; the pipeline connection is simple, and the use amount of materials such as the fixed bracket is small; and the turnover angle of the vehicle cab can be increased.
To achieve the purpose, the utility model adopts the following technical proposal:
a hydraulic lifting device comprising:
the hydraulic cylinder adopts a non-differential mode and adopts a backward tilting arrangement mode;
the integrated pump comprises a manual pump, an electric pump and a switch assembly which are integrated into a whole, wherein the manual pump is connected with the electric pump, the switch assembly is electrically connected with the electric pump, and the switch assembly is used for controlling the electric pump to be turned on and off;
and the oil pipe assembly is connected between the integrated pump and the hydraulic cylinder.
As a preferred technical scheme of hydraulic pressure lifting devices, the integrated pump still includes the connecting plate, manual pump with the electric pump all connect in on the connecting plate, the connecting plate is connected with the last fixed bolster of vehicle.
As a preferred technical scheme of hydraulic pressure lifting devices, the switch subassembly includes relay and switch, the relay with the electric pump is connected, the switch with the relay is connected, just the switch is fixed in on the connecting plate.
As a preferred technical solution of the hydraulic lifting device, the switch is a rotary switch.
As a preferred technical scheme of the hydraulic lifting device, the relay is a magnetic relay.
As a preferred technical scheme of the hydraulic lifting device, the oil pipe assembly comprises a lifting oil pipe and a return oil pipe, one end of the lifting oil pipe is connected with the hydraulic cylinder, and the other end of the lifting oil pipe is connected with a lifting oil port of the integrated pump; and one end of the return oil pipe is connected with the hydraulic cylinder, and the other end of the return oil pipe is connected with a return oil port of the integrated pump.
As a preferred technical scheme of the hydraulic lifting device, an upper lifting lug is arranged on the hydraulic cylinder and is used for being connected with a vehicle cab.
As a preferred technical scheme of the hydraulic lifting device, a lower lifting lug is arranged on the hydraulic cylinder and is used for being connected with a vehicle frame.
As a preferred technical scheme of the hydraulic lifting device, a fixing threaded hole is formed in the connecting plate, and the connecting plate is connected with the fixing support through the fixing threaded hole.
In order to achieve the above object, the present invention further provides a vehicle including the hydraulic lifting device as described above.
The utility model provides a hydraulic lifting device and vehicle, this vehicle includes hydraulic lifting device, hydraulic lifting device includes the pneumatic cylinder, this pneumatic cylinder adopts non-differential mode, compare in differential mode, under the pneumatic cylinder of equal diameter, the output power of the pneumatic cylinder of non-differential mode is bigger, when needs reach the same load capacity, hydraulic system pressure in the pneumatic cylinder of non-differential mode is little, and the cylinder external diameter of the pneumatic cylinder of non-differential mode is less, thereby the problem that hydraulic system pressure is big has been solved, and then the damage of the inside function piece of pneumatic cylinder has been avoided; the hydraulic cylinder adopts a backward-tilting arrangement mode, and compared with a forward-tilting arrangement mode, the hydraulic cylinder adopting the backward-tilting arrangement mode is not limited by components such as an engine and the like arranged below the cab, so that the designed size of the hydraulic cylinder is larger, the length of the hydraulic cylinder capable of extending is larger, the turnover angle of the cab of the vehicle can be increased, the cab can be overturned to pass through the center of gravity, the maintenance of the core components such as the engine and the like is facilitated, and the condition that the cab is broken down and falls back to cause injury to maintenance personnel is avoided; this hydraulic lifting device still includes the micropump, hand pump, electric pump and switch module integration in an organic whole in the micropump, compare in independent manual pump, electric pump and the switch module who sets up among the prior art, the degree of integrating is high, reduced the use amount of materials such as fixed bolster, reduced the quantity of pipeline for the tube coupling is simple, avoids appearing arranging the nervous problem in space, and the oil leak, risk such as inefficacy is low, makes the whole lightweight that tends to of vehicle.
Drawings
Fig. 1 is a schematic structural diagram of a hydraulic lifting device according to an embodiment of the present invention.
Reference numerals:
1. a hydraulic cylinder; 11. an upper lifting lug; 12. a lower lifting lug;
2. an integrated pump; 21. a manual pump; 22. an electric pump; 23. a relay; 24. a switch; 25. a connecting plate;
3. an oil pipe assembly; 31. lifting the oil pipe; 32. and (5) returning the oil pipe.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The embodiment provides a vehicle comprising a hydraulic lifting device.
Specifically, as shown in fig. 1, the hydraulic lifting device comprises a hydraulic cylinder 1, wherein the hydraulic cylinder 1 adopts a non-differential mode, the hydraulic cylinder 1 adopts a backward tilting arrangement mode, and the hydraulic cylinder 1 is arranged between a cab and a frame; the integrated pump 2 comprises a manual pump 21, an electric pump 22 and a switch assembly which are integrated into a whole, the manual pump 21 is connected with the electric pump 22, the switch assembly is electrically connected with the electric pump 22 and is used for controlling the on and off of the electric pump 22, and the integrated pump 2 is arranged on a fixed support; the oil pipe assembly 3 is connected between the integrated pump 2 and the hydraulic cylinder 1.
The hydraulic cylinder 1 adopts a non-differential mode, compared with a differential mode, under the condition of the hydraulic cylinders with the same diameter, the output force of the hydraulic cylinder in the non-differential mode is larger, when the same load capacity needs to be achieved, the hydraulic pressure in the hydraulic cylinder 1 in the non-differential mode is small, and the outer diameter of a cylinder barrel of the hydraulic cylinder 1 in the non-differential mode is smaller, so that the problem of large pressure of a hydraulic system is solved, and further, the damage to internal functional parts of the hydraulic cylinder 1 is avoided; the hydraulic cylinder 1 adopts a backward-tilting arrangement mode, compared with a forward-tilting arrangement mode, the hydraulic cylinder of the backward-tilting arrangement mode is not limited by components such as an engine and the like arranged below a cab, so that the designed size of the hydraulic cylinder is larger, the length of the hydraulic cylinder capable of extending is larger, the turnover angle of the cab of a vehicle can be increased, the cab is overturned to pass through the center of gravity, the maintenance of core components such as the engine and the like is facilitated, the condition that the cab is broken down and falls back to cause damage to maintenance personnel is avoided, and the problem that the cab is overturned and repeatedly sways can be solved; this hydraulic lifting device still includes the integrated pump 2, the hand pump 21 in the integrated pump 2, electric pump 22 and switch module are integrated in an organic whole, compare in the hand pump of independent setting among the prior art, electric pump and switch module, the degree of integration is high, the use amount of materials such as fixed bolster has been reduced, the quantity of pipeline has been reduced, make the tube coupling simple, avoid appearing arranging the problem that the space is nervous, and the oil leak, risk such as inefficacy is low, make the whole lightweight that tends to of vehicle, the product reliability is improved, economic nature and quality.
Further preferably, the hydraulic cylinder 1 adopts the loss valve and the loss oil pipe to solve the problem of insufficient or excessive oil pressure in the cylinder barrel, so that the cab vibrates up and down due to uneven road surface in the normal running process of the vehicle, the hydraulic cylinder can extend or shorten along with the movement of the cab, the damage to the cab is avoided, the safe and stable running of the vehicle is ensured, the connection relation of the loss valve, the loss oil pipe and the cylinder barrel is the prior art, and the details are not repeated.
Preferably, the hydraulic cylinder 1 is provided with an upper lifting lug 11 and a lower lifting lug 12, wherein the upper lifting lug 11 is used for being connected with a cab of the vehicle, and the lower lifting lug 12 is used for being connected with a frame of the vehicle.
As shown in fig. 1, the integrated pump 2 further includes a connecting plate 25, the manual pump 21 and the electric pump 22 are both connected to the connecting plate 25, and the connecting plate 25 is connected to a fixed bracket on the vehicle. Optionally, a fixing threaded hole is formed in the connecting plate 25, and the connecting plate 25 is connected with a fixing bracket on the vehicle through the fixing threaded hole. The connecting plate 25 integrates the manual pump 21 and the electric pump 22, and the manual pump 21 and the electric pump 22 can be fixed at the same time only by connecting the connecting plate 25 with one fixing bracket, so that the use of the fixing bracket is reduced, and the vehicle is light.
As shown in fig. 1, the switch assembly includes a relay 23 and a switch 24, the relay 23 is connected with the electric pump 22, the switch 24 is connected with the relay 23, and the switch 24 is fixed on the connecting plate 25, the switch assembly and the electric pump 22 are integrated into a whole, the complexity of the pipeline is further reduced, the number of used fixing supports is reduced, the problem of arrangement space shortage is avoided, and the vehicle tends to be light. Preferably, the switch 24 is a rotary switch, and the whole rotary switch adopts a sealing structure, so that a certain waterproof effect is achieved. Further preferably, the relay 23 is a magnetic relay, which has high sensitivity and high operating frequency.
As shown in fig. 1, the oil pipe assembly 3 includes a lifting oil pipe 31 and a return oil pipe 32, one end of the lifting oil pipe 31 is connected with the hydraulic cylinder 1, the other end is connected with a lifting oil port of the integrated pump 2, and the lifting oil port is arranged on the manual pump 21; one end of the return oil pipe 32 is connected with the hydraulic cylinder 1, the other end is connected with a return oil port of the integrated pump 2, and the return oil port is arranged on the manual pump 21. The hydraulic lifting device is connected only through two pipelines, so that the connection structure of the hydraulic lifting device is simpler, and the assembly process is further simplified.
It should be noted that, the specific working principle among the manual pump 21, the electric pump 22 and the switch assembly in the integrated pump 2 provided in this embodiment is the prior art, and is not described herein again, and since the present embodiment only changes the arrangement relationship among the manual pump 21, the electric pump 22 and the switch assembly, the specific working principle is not changed, so that each parameter of the entire hydraulic lifting device still meets the design requirement.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. A hydraulic lifting device, comprising:
the hydraulic cylinder (1) adopts a non-differential mode, and the hydraulic cylinder (1) adopts a backward tilting arrangement mode;
the integrated pump (2) comprises a manual pump (21), an electric pump (22) and a switch assembly which are integrated into a whole, wherein the manual pump (21) is connected with the electric pump (22), the switch assembly is electrically connected with the electric pump (22), and the switch assembly is used for controlling the electric pump (22) to be switched on and off;
and the oil pipe assembly (3) is connected between the integrated pump (2) and the hydraulic cylinder (1).
2. Hydraulic lifting device according to claim 1, characterised in that the integrated pump (2) further comprises a connection plate (25), the manual pump (21) and the electric pump (22) being connected to the connection plate (25), the connection plate (25) being connected to a fixed bracket on the vehicle.
3. Hydraulic lifting device according to claim 2, characterised in that the switch assembly comprises a relay (23) and a switch (24), the relay (23) being connected to the electric pump (22), the switch (24) being connected to the relay (23), and the switch (24) being fixed to the connection plate (25).
4. A hydraulic lifting device according to claim 3, characterised in that the switch (24) is a rotary switch.
5. A hydraulic lifting device according to claim 3, characterised in that the relay (23) is a magnetic relay.
6. The hydraulic lifting device according to claim 1, characterized in that the oil pipe assembly (3) comprises a lifting oil pipe (31) and a return oil pipe (32), one end of the lifting oil pipe (31) is connected with the hydraulic cylinder (1), and the other end is connected with a lifting oil port of the integrated pump (2); one end of the return oil pipe (32) is connected with the hydraulic cylinder (1), and the other end of the return oil pipe is connected with a return oil port of the integrated pump (2).
7. A hydraulic lifting device according to claim 1, characterised in that the hydraulic cylinder (1) is provided with an upper lifting lug (11), which upper lifting lug (11) is intended to be connected to a vehicle cab.
8. A hydraulic lifting device according to claim 1, characterised in that the hydraulic cylinder (1) is provided with a lower lifting lug (12), which lower lifting lug (12) is intended to be connected to a vehicle frame.
9. A hydraulic lifting device according to claim 2, characterised in that the connection plate (25) is provided with fixing threaded holes, through which the connection plate (25) is connected to the fixing bracket.
10. A vehicle comprising a hydraulic lifting device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022045729.4U CN213176228U (en) | 2020-09-17 | 2020-09-17 | Hydraulic lifting device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022045729.4U CN213176228U (en) | 2020-09-17 | 2020-09-17 | Hydraulic lifting device and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213176228U true CN213176228U (en) | 2021-05-11 |
Family
ID=75774301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022045729.4U Active CN213176228U (en) | 2020-09-17 | 2020-09-17 | Hydraulic lifting device and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213176228U (en) |
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2020
- 2020-09-17 CN CN202022045729.4U patent/CN213176228U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220303 Address after: No.100 Jiefang Avenue, Qingdao automobile industry new town, Qingdao, Shandong 266200 Patentee after: FAW JIEFANG QINGDAO AUTOMOBILE Co.,Ltd. Address before: No.2259 Dongfeng Street, Changchun Automobile Development Zone, Jilin Province Patentee before: FAW JIEFANG AUTOMOTIVE Co.,Ltd. |