CN219136260U - Automobile lifter - Google Patents
Automobile lifter Download PDFInfo
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- CN219136260U CN219136260U CN202223118828.6U CN202223118828U CN219136260U CN 219136260 U CN219136260 U CN 219136260U CN 202223118828 U CN202223118828 U CN 202223118828U CN 219136260 U CN219136260 U CN 219136260U
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Abstract
The utility model relates to the field of automobile lifting equipment, and particularly discloses an automobile lifter, which comprises a first scissor lifter and a hydraulic system, wherein the first scissor lifter is driven to lift by two oil cylinders; the hydraulic system comprises an oil drum, and an oil outlet end and an oil return end are arranged in the oil drum; the oil outlet end comprises an oil outlet passage connected in the oil drum, the oil outlet passage is provided with an oil outlet passage gear pump, the other end of the oil outlet passage is connected with a first oil passage and a second oil passage which are connected in parallel, the first oil passage is connected with the first rear-stage oil receiving end, the second oil passage is connected with the second rear-stage oil receiving end, the first oil passage comprises a second one-way valve positioned between the first rear-stage oil receiving end and the gear pump, and the second oil passage comprises a first one-way valve positioned between the second rear-stage oil receiving end and the gear pump. The oil outlet end and the oil return end of the double-safety hydraulic system are independent hydraulic systems, and if any oil way has leakage faults, the other oil way can still work normally, so that the double-safety hydraulic system is formed.
Description
Technical Field
The utility model relates to the field of automobile lifting equipment, in particular to an automobile lifter.
Background
The conventional scissor lifts for automobile maintenance comprise a single hydraulic drive type lifting bearing plate driven by one oil cylinder and a double hydraulic drive type lifting bearing plate driven by two oil cylinders.
In order to ensure safety, the existing double-hydraulic-drive scissor lifter generally comprises two groups of oil way hydraulic systems for oil supply and oil return, and if one oil way fails in a leakage way, the other oil way hydraulic system works normally and supports the scissor lifter, so that the scissor lifter cannot fall abnormally due to the leakage fault of one way. However, the scissor lifter needs to be provided with two sets of motors, gear pumps, overflow valves and throttle valves, and two oil ways are respectively matched with the two sets of devices, so that the manufacturing cost is wasted.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model aims to provide an automobile lifter.
The technical scheme adopted by the utility model is as follows: the automobile lifter comprises a first scissor lifter and a hydraulic system, wherein the first scissor lifter is driven to lift through two oil cylinders; the hydraulic system comprises an oil drum, and an oil outlet end and an oil return end are arranged in the oil drum; the oil outlet end comprises an oil outlet passage connected in the oil drum, the oil outlet passage is provided with an oil outlet passage gear pump, the other end of the oil outlet passage is connected with a first oil passage and a second oil passage which are connected in parallel, the first oil passage is connected with a first rear-stage oil receiving end, the second oil passage is connected with a second rear-stage oil receiving end, the first oil passage comprises a second one-way valve positioned between the first rear-stage oil receiving end and the gear pump, and the second oil passage comprises a first one-way valve positioned between the second rear-stage oil receiving end and the gear pump; the oil return end comprises an oil return path connected in the oil drum, the oil return path is provided with a third node, the third node is connected with two branches, the third node is respectively a third oil path connected with the second rear-stage oil receiving end and a fourth oil path connected with the first rear-stage oil receiving end, the third oil path is provided with a first electric pressure relief valve, and the fourth oil path is provided with a second electric pressure relief valve; the first rear-stage oil receiving end and the second rear-stage oil receiving end are respectively communicated with two oil cylinders of the first scissor lifter.
Further, the oil outlet path comprises a first filter for filtering oil sent out from the oil drum, and a motor is arranged on one side of the gear pump.
Further, the front ends of the first oil way and the second oil way are converged at a first node, a second node is further arranged between the first node and the gear pump, the second node is communicated with an overflow oil way communicated with the oil drum, and the overflow oil way comprises an overflow valve.
Further, the oil return includes a throttle valve.
Further, the third oil passage includes a second filter, and the fourth oil passage includes a third filter.
Further, the device also comprises a second scissor lifter, wherein the first scissor lifter and the second scissor lifter are driven to lift by a double-acting oil cylinder and a single-acting oil cylinder; the first rear-stage oil receiving end is communicated with one oil port of a double-acting oil cylinder in the first scissor lifter, and the other oil port of the double-acting oil cylinder is communicated with a single-acting oil cylinder in the second scissor lifter; the second rear-stage oil receiving end is communicated with one oil port of a double-acting oil cylinder in the second scissor lifter, and the other two oil ports of the double-acting oil cylinder are communicated with a single-acting oil cylinder in the first scissor lifter.
The utility model has the beneficial effects that:
the automobile lifter adopts a double independent oil way hydraulic system design, when the gear pump is operated by the motor, the output is two oil ways for supplying oil to the first rear-stage oil receiving end and the second rear-stage oil receiving end respectively, and the two oil ways are independent hydraulic systems respectively and are not affected by each other; if one oil way has leakage fault, the other hydraulic system can still work normally, and the other hydraulic system can still support the automobile lifter to prevent the automobile lifter from falling, so that a double-safety hydraulic system is formed. Meanwhile, only a single set of motor, gear pump, overflow valve and throttle valve is needed, and the two oil ways share the devices, so that the manufacturing cost can be saved.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present utility model;
fig. 2 is a schematic diagram of a second embodiment of the present utility model.
In the figure: 1. a first one-way valve; 2. a second one-way valve; 3. an overflow valve; 4. a gear pump; 5. a first filter; 6. a motor; 7. a throttle valve; 8. an oil drum; 9. a first electric relief valve; 10. the second electric pressure relief valve; 11. a second filter; 12. a third filter; A. an oil outlet end; B. an oil return end; C. the first rear stage is connected with the oil end; D. the second post-stage oil receiving end; E. a first oil passage; F. a second oil path; G. a third oil passage; H. a fourth oil passage; I. an oil outlet path; J. an oil return path; K. an overflow oil path; 21. a first scissor lift; 22. and a second scissor lift.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 1, the present utility model provides a technical solution: an automobile lifter comprises a first scissor lifter 21 and a hydraulic system, wherein the first scissor lifter 21 is driven to lift through two single-acting cylinders. The hydraulic system comprises an oil drum 8 and a rear-stage oil receiving group, wherein the rear-stage oil receiving group comprises a first rear-stage oil receiving end C and a second rear-stage oil receiving end D, and the first rear-stage oil receiving end C and the second rear-stage oil receiving end D are both used for communicating with an oil cylinder.
In the present embodiment, the first rear-stage oil receiving end C communicates with a first single-acting cylinder in the first scissor lift 21, and the second rear-stage oil receiving end D communicates with a second single-acting cylinder in the first scissor lift 21.
The automobile lifter of the embodiment is provided with only one scissor lifter, so that the automobile lifter is single-point to support when in use, and the middle part of an automobile is properly supported. The basic mechanical structure of the automobile lifter with only one scissor lifter is in the prior art, so that the basic mechanical structure is not repeated in the application, and the hydraulic system of the automobile lifter is mainly innovated and detailed in the embodiment.
The oil drum 8 is connected with an oil outlet end A and an oil return end B for continuously supplying oil and returning oil for the rear-stage oil receiving group respectively.
Wherein, go out oily end A including being connected in the oil drum 8 go out oily way I, go out oily way I including being used for filtering the first filter 5 of oil drum 8 interior delivery oil, guarantee out oily clean rate, go out oily way I still including the gear pump 4 that links to each other with first filter 5, gear pump 4 one side still is equipped with motor 6, motor 6 drives this 4 work of gear, through the cooperation of gear pump 4 and motor 6, provides out oily power.
The other end of the oil outlet I is connected with a first oil way E and a second oil way F which are connected in parallel, the first oil way E is connected with a first rear-stage oil receiving end C, the second oil way F is connected with a second rear-stage oil receiving end D, the first oil way E comprises a second one-way valve 2 positioned between the first rear-stage oil receiving end C and the gear pump 4, and the second oil way F comprises a first one-way valve 1 positioned between the second rear-stage oil receiving end D and the gear pump 4.
The front ends of the first oil way E and the second oil way F are converged at a first node L, a second node M is further arranged between the first node L and the gear pump 4, the second node M is communicated with an overflow oil way K communicated with the oil drum 8, the overflow oil way K comprises an overflow valve 3, the oil pressure of the whole system is limited within a specified value through the arrangement of the overflow valve 3, when the oil pressure of the whole system reaches a specified maximum value, the overflow valve 3 is opened, oil flows back to the oil drum 8 through the overflow valve 3, and damage to parts in the system is avoided.
When oil is pumped out from the oil drum 8, the power provided by the gear pump 4 and the motor 6 flows into the first filter 5, the filtered oil is divided into two oil flows, one oil flows to the second rear-stage oil receiving end D through the first one-way valve 1, the other oil flows to the first rear-stage oil receiving end C through the second one-way valve 2, and when the pressure of the hydraulic system is larger than the specified value of the overflow valve 3, the oil flows into the oil drum 8 again through the overflow valve 3.
For the oil return end B, the oil return end B comprises an oil return path J connected in the oil drum 8, the oil return path J comprises a throttle valve 7, the throttle valve 7 changes the flow of oil entering and exiting the oil cylinder (a first rear-stage oil receiving end C and a second rear-stage oil receiving end D) by adjusting liquid resistance, so that the movement speed of the oil cylinder is adjusted, the oil return path J is provided with a third node N, the third node N is connected with two branches, namely a third oil path G connected with the second rear-stage oil receiving end D and a fourth oil path H connected with the first rear-stage oil receiving end C, the third oil path G comprises a second filter 11, the fourth oil path H comprises a third filter 12, the third filter 12 is consistent with the first filter 5, and the second filter 11 and the third filter 12 are responsible for filtering the oil entering the third oil path G and the fourth oil path H.
A first electric relief valve 9 is connected between the second filter 11 and the third node N, a second electric relief valve 10 is connected between the third filter 12 and the third node N, and the first electric relief valve 9 and the second electric relief valve 10 are respectively used for controlling the pressures in the third oil path G and the fourth oil path H, that is, regulating and controlling the working pressures of the first rear-stage oil receiving end C and the second rear-stage oil receiving end D.
Example two
The second embodiment is different from the first embodiment in that the car lifter further includes a second scissor lift 22, and the second scissor lift 22 is driven to lift by two cylinders, but the first scissor lift 21 and the second scissor lift 22 are driven to lift by a double-acting cylinder and a single-acting cylinder, so that the connection relationship between the first rear-stage oil receiving end C and the second rear-stage oil receiving end D and the cylinders is also different from the first embodiment. Other embodiments are the same as the first embodiment.
The automobile lifter of this embodiment sets up two and cuts fork lifters, therefore it is the two-point support when using, suitably supports the both sides of car, and this kind of basic mechanical structure who is provided with two and cuts fork lifters of automobile lifter is prior art, consequently no longer described in this application in detail, and this embodiment is mainly innovated and detailed its hydraulic system.
Referring to fig. 2, in the present embodiment, the first rear-stage oil receiving end C is connected to one oil port of the double-acting oil cylinder in the first scissor lift 21, and the other oil port of the double-acting oil cylinder is connected to the single-acting oil cylinder in the second scissor lift 22, that is, the double-acting oil cylinder in the first scissor lift 21 and the single-acting oil cylinder in the second scissor lift 22 are lifted together. The second rear-stage oil receiving end D is communicated with one oil port of a double-acting oil cylinder in the second scissor lift 22, and the other two oil ports of the double-acting oil cylinder are communicated with a single-acting oil cylinder in the first scissor lift 21, namely, the double-acting oil cylinder in the second scissor lift 22 and the single-acting oil cylinder in the first scissor lift 21 are lifted together. Thus, the lifting of the two scissor lifts can be ensured to be consistent, and the automobile lifter always keeps a horizontal posture to lift.
The working principle and the using flow of the utility model are as follows: the automobile lifter adopts a double independent oil way hydraulic system design, when the gear pump 4 is operated by the motor 6, the output is two oil ways for supplying oil for the first rear-stage oil receiving end C and the second rear-stage oil receiving end D respectively, and the two oil ways are independent hydraulic systems respectively and are not mutually influenced. If one oil way has leakage fault, the other hydraulic system can still work normally, and the other hydraulic system can still support the automobile lifter to prevent the automobile lifter from falling, so that a double-safety hydraulic system is formed. Meanwhile, only a single set of motor 6, gear pump 4, overflow valve 3 and throttle valve 7 is needed, and the two oil ways share the devices, so that the manufacturing cost can be saved.
Finally, it should be noted that the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited to the foregoing embodiments, but may be modified or substituted for some of the features described in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. The automobile lifter is characterized by comprising a first scissor lifter and a hydraulic system, wherein the first scissor lifter is driven to lift through two oil cylinders;
the hydraulic system comprises an oil drum (8), and an oil outlet end (A) and an oil return end (B) are arranged in the oil drum (8);
the oil outlet end (A) comprises an oil outlet path (I) connected in the oil drum (8), the oil outlet path (I) is provided with an oil outlet path (I) gear pump (4), the other end of the oil outlet path (I) is connected with a first oil path (E) and a second oil path (F) which are connected in parallel, the first oil path (E) is connected with a first rear-stage oil receiving end (C), the second oil path (F) is connected with a second rear-stage oil receiving end (D), the first oil path (E) comprises a second one-way valve (2) positioned between the first rear-stage oil receiving end (C) and the gear pump (4), and the second oil path (F) comprises a first one-way valve (1) positioned between the second rear-stage oil receiving end (D) and the gear pump (4);
the oil return end (B) comprises an oil return path (J) connected in the oil drum (8), the oil return path (J) is provided with a third node (N), the third node (N) is connected with two branches, namely a third oil path (G) connected with the second rear-stage oil receiving end (D) and a fourth oil path (H) connected with the first rear-stage oil receiving end (C), the third oil path (G) is provided with a first electric relief valve (9), and the fourth oil path (H) is provided with a second electric relief valve (10);
the first rear-stage oil receiving end (C) and the second rear-stage oil receiving end (D) are respectively communicated with two oil cylinders of the first scissor lifter (21).
2. The vehicle lift according to claim 1, characterized in that the oil outlet (I) comprises a first filter (5) for filtering the oil discharged from the oil drum (8), and that the gear pump (4) is provided with a motor (6) on one side.
3. The automobile lifter according to claim 1, characterized in that the front ends of the first oil path (E) and the second oil path (F) are converged at a first node (L), a second node (M) is further provided between the first node (L) and the gear pump (4), the second node (M) is communicated with an overflow oil path (K) communicated with the oil tank (8), and the overflow oil path (K) includes an overflow valve (3).
4. The vehicle lift according to claim 1, characterized in that the return line (J) comprises a throttle valve (7).
5. The vehicle lifter according to claim 1, characterized in that the third oil circuit (G) comprises a second filter (11) and the fourth oil circuit (H) comprises a third filter (12).
6. The automobile lifter according to claim 1, further comprising a second scissor lifter (22), wherein the first scissor lifter (21) and the second scissor lifter (22) are driven to lift by a double acting cylinder and a single acting cylinder;
the first rear-stage oil receiving end (C) is communicated with one oil port of a double-acting oil cylinder in the first scissor lifter (21), and the other oil port of the double-acting oil cylinder is communicated with a single-acting oil cylinder in the second scissor lifter (22); the second rear-stage oil receiving end (D) is communicated with one oil port of a double-acting oil cylinder in the second scissor lifter (22), and the other two oil ports of the double-acting oil cylinder are communicated with a single-acting oil cylinder in the first scissor lifter (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223118828.6U CN219136260U (en) | 2022-11-23 | 2022-11-23 | Automobile lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223118828.6U CN219136260U (en) | 2022-11-23 | 2022-11-23 | Automobile lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219136260U true CN219136260U (en) | 2023-06-06 |
Family
ID=86561747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223118828.6U Active CN219136260U (en) | 2022-11-23 | 2022-11-23 | Automobile lifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219136260U (en) |
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2022
- 2022-11-23 CN CN202223118828.6U patent/CN219136260U/en active Active
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