CN114772505B - Hydraulic lifting device for automobile maintenance and application method thereof - Google Patents
Hydraulic lifting device for automobile maintenance and application method thereof Download PDFInfo
- Publication number
- CN114772505B CN114772505B CN202210458327.8A CN202210458327A CN114772505B CN 114772505 B CN114772505 B CN 114772505B CN 202210458327 A CN202210458327 A CN 202210458327A CN 114772505 B CN114772505 B CN 114772505B
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- wall
- hydraulic cylinder
- frame
- cylinder body
- push rod
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention relates to the technical field of automobile maintenance equipment, in particular to a hydraulic lifting device for automobile maintenance and a use method thereof. The technical proposal comprises: frame body, first pneumatic cylinder body, mount, draw-in groove, slider, push rod body and connecting cover, the support frame is all installed to frame body upper end outer wall both sides, first pneumatic cylinder body is installed to support frame one side outer wall, first pneumatic cylinder body lower extreme one side is provided with the push rod body, the spout has all been seted up to frame body inner wall both sides, spout inside slidable mounting has the slider, fixed block is installed to push rod body one side outer wall, the mount is installed to fixed block one side outer wall, through setting up connecting cover, level sensor and fixture block, has reached the effect of improvement equipment safety in utilization, has reached the purpose of fixed bolster and vehicle, avoids the vehicle to cause the injury to the staff of backup pad below.
Description
Technical Field
The invention relates to the technical field of automobile maintenance equipment, in particular to a hydraulic lifting device for automobile maintenance and a use method thereof.
Background
An automobile is a power-driven, non-track-borne vehicle having 4 or more wheels, and a car refers to an automobile for carrying people and their belongings with seats disposed between two axles. The number of seats is not more than nine at most including drivers, and when the automobile chassis is overhauled, a hydraulic lifting machine is needed, and the automobile lifting machine refers to automobile protection equipment for lifting automobiles in the automobile maintenance industry. The lifting machine plays a vital role in the maintenance of the automobile, and whether the whole automobile is overhauled or overhauled, the lifting machine is not separated from the maintenance, and the personal safety of maintenance personnel is directly influenced by the quality of the product. In maintenance enterprises of various scales, there are almost all kinds of elevators equipped in a repair shop for repairing various types of vehicles or in a street shop having a single operation area.
Through mass retrieval, a hydraulic lifting device for automobile maintenance, which is typical for a lifting device in the prior art and is disclosed as publication No. CN112850548A, is found, and the technical scheme is characterized by comprising a portal frame, wherein the portal frame has higher structural strength, and support columns are arranged on two sides of the portal frame; the lifting mechanism is arranged on the supporting column and moves up and down through the hydraulic system, has the function of lifting an automobile, and comprises a lifting slide block and an adjusting arm arranged on the lifting slide block, wherein the lifting mechanism is provided with an adjusting device for driving the adjusting arm to rotate, one end of the adjusting arm is provided with a positioning device, the supporting column is provided with a sliding groove matched with the lifting slide block, and the supporting column is provided with an anti-slip structure arranged in the sliding groove.
The phenomenon that current hydraulic lifting device appears the oil leak easily and damages in the use to the lift force that has led to the pneumatic cylinder to the vehicle changes, can appear can not support the phenomenon of vehicle weight, causes the threat to the staff of vehicle below, influences the safety in utilization of equipment, and falls suddenly and can cause the injury to the vehicle.
Disclosure of Invention
The invention aims to provide a hydraulic lifting device for automobile maintenance and a use method thereof, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a hydraulic lifting device for auto repair, includes frame body, first pneumatic cylinder body, mount, draw-in groove, slider, push rod body and connecting cover, the support frame is all installed to frame body upper end outer wall both sides, first pneumatic cylinder body is installed to support frame one side outer wall, first pneumatic cylinder body lower extreme one side is provided with the push rod body, the spout has all been seted up to frame body inner wall both sides, spout inside slidable mounting has the slider, the fixed block is installed to push rod body one side outer wall, the mount is installed to fixed block one side outer wall.
Preferably, the push rod body is positioned in the chute, the outer wall of the lower end of the push rod body is connected with the sliding block, and the first hydraulic cylinder body drives the sliding block to move through the push rod body;
the outer wall of one side of the sliding block is provided with a supporting plate, the supporting plate is positioned in the frame body, and the purpose of supporting the vehicle is achieved by the supporting plate;
a buzzer is arranged on one side of the outer wall of the upper end of the frame body, the buzzer is positioned between the two supporting frames, and the buzzer can make sound to remind a worker to maintain equipment in time;
the outer walls of two sides of the frame body are provided with clamping grooves which are distributed in parallel at equal intervals.
Preferably, a connecting cover is arranged on one side of the outer wall of the upper end of the fixed block, a liquid level sensor is arranged on one side of the lower end of the inner wall of the connecting cover, the connecting cover achieves the purpose of shielding the push rod body, and the liquid level sensor is used for detecting liquid in the connecting cover;
the inner wall of the connecting cover is fixedly provided with a sealing gasket in a fitting manner, and the sealing gasket is contacted with the outer wall of the first hydraulic cylinder body. The sealing gasket ensures the tightness between the connecting cover and the first hydraulic cylinder body.
Preferably, the fixing frame is located at the outer side of the frame body, and the size of the fixing frame is larger than that of the frame body;
the second hydraulic cylinder bodies which are distributed in parallel at equal intervals are arranged on one side of the inner wall of the fixing frame, clamping blocks are arranged on the outer wall of one side, opposite to the frame body, of the second hydraulic cylinder bodies, the outer walls of the two sides of each clamping block are designed in an arc shape, the clamping blocks and the clamping grooves achieve the purpose of fixing the fixing frame and the fixing blocks, and the position stability of the sliding blocks and the supporting plates is guaranteed;
the fixture block deviates from second pneumatic cylinder body one side outer wall laminating and is fixed with the friction pad, the friction pad has guaranteed the frictional force between fixture block and the frame body.
The application method of the hydraulic lifting device for the automobile maintenance comprises the following steps:
step one: the staff moves the vehicle to the upper end of the supporting plate, and the supporting plate is positioned below the chassis of the vehicle;
step two: the working personnel controls the first hydraulic cylinder body to drive the push rod body to retract and move through the external controller, so that the purpose of lifting the vehicle is achieved through the sliding block and the supporting plate;
step three: when the push rod body is retracted, the fixed block, the connecting cover and the fixing frame move in the same direction, and after the supporting plate is lifted, the second hydraulic cylinder body pushes the clamping block to move into the clamping groove, so that the stability of the supporting plate is improved by the clamping block and the clamping groove;
step four: when the push rod body and the first hydraulic cylinder body leak oil, the leaked hydraulic oil can be sprayed into the connecting cover, the liquid level sensor achieves the purpose of detecting whether the push rod body and the first hydraulic cylinder body leak oil or not, and the liquid level sensor transmits signals to an external controller;
step five: the external controller controls the second hydraulic cylinder body to push the clamping block to move until the friction pad is contacted with the outer wall of the frame body, the descending speed of the supporting plate is reduced through the friction force between the friction pad and the frame body until the clamping block moves into the clamping groove, and therefore the purposes of fixing the supporting plate and the vehicle are achieved, and the vehicle is prevented from injuring staff below the supporting plate.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the effect of improving the use safety of equipment is achieved by arranging the connecting cover, the liquid level sensor and the clamping block, when oil leakage occurs between the push rod body and the first hydraulic cylinder body, the leaked hydraulic oil can be sprayed into the connecting cover, the liquid level sensor achieves the purpose of detecting whether the push rod body and the first hydraulic cylinder body leak oil or not, the external controller controls the second hydraulic cylinder body to push the clamping block to move until the friction pad contacts with the outer wall of the frame body, the descending speed of the supporting plate is reduced until the clamping block moves into the clamping groove through the friction force between the friction pad and the frame body, so that the purpose of fixing the supporting plate and a vehicle is achieved, the damage of the vehicle to staff below the supporting plate is avoided, the use safety of the equipment is improved, and the lifting safety of the vehicle is improved.
Drawings
FIG. 1 is a schematic cross-sectional view of a frame body structure of the present invention;
FIG. 2 is a schematic top view of a frame body structure of the present invention;
FIG. 3 is an enlarged view of a portion of the chute structure of FIG. 1 according to the present invention;
fig. 4 is an enlarged view of a portion of the frame body structure of fig. 1 according to the present invention.
In the figure: 1. a frame body; 11. a clamping groove; 13. a chute; 14. a support frame; 15. a buzzer; 16. a slide block; 17. a support plate; 2. a first hydraulic cylinder body; 21. a push rod body; 22. a fixed block; 23. a connection cover; 24. a sealing gasket; 25. a liquid level sensor; 3. a fixing frame; 31. a second hydraulic cylinder body; 32. a clamping block; 33. friction pad.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 4, two embodiments of the present invention are provided:
embodiment one: the utility model provides a hydraulic lifting device for auto repair and application method thereof, including frame body 1, first pneumatic cylinder body 2, mount 3, draw-in groove 11, slider 16, push rod body 21 and junction housing 23, support frame 14 is all installed to frame body 1 upper end outer wall both sides, first pneumatic cylinder body 2 is installed to support frame 14 one side outer wall, first pneumatic cylinder body 2 lower extreme one side is provided with push rod body 21, spout 13 has all been seted up to frame body 1 inner wall both sides, slider 16 is installed to spout 13 inside slidable, fixed block 22 is installed to push rod body 21 one side outer wall, mount 3 is installed to fixed block 22 one side outer wall.
The push rod body 21 is positioned in the chute 13, the outer wall of the lower end of the push rod body 21 is connected with the sliding block 16, the first hydraulic cylinder body 2 drives the sliding block 16 to move through the push rod body 21, and a worker controls the first hydraulic cylinder body 2 to drive the push rod body 21 to retract through an external controller, so that the purpose of lifting a vehicle is achieved through the sliding block 16 and the supporting plate 17;
the outer wall of one side of the sliding block 16 is provided with a supporting plate 17, the supporting plate 17 is positioned in the frame body 1, the supporting plate 17 achieves the purpose of supporting a vehicle, a worker moves the vehicle to the upper end of the supporting plate 17, and the supporting plate 17 is positioned below a chassis of the vehicle;
a buzzer 15 is arranged on one side of the outer wall of the upper end of the frame body 1, the buzzer 15 is positioned between the two supporting frames 14, and the buzzer 15 can make a sound to remind a worker to maintain equipment in time;
the outer walls of the two sides of the frame body 1 are provided with clamping grooves 11 which are distributed in parallel at equal intervals.
Embodiment two: the utility model provides a hydraulic lifting device for auto repair and application method thereof, including frame body 1, first pneumatic cylinder body 2, mount 3, draw-in groove 11, slider 16, push rod body 21 and junction housing 23, support frame 14 is all installed to frame body 1 upper end outer wall both sides, first pneumatic cylinder body 2 is installed to support frame 14 one side outer wall, first pneumatic cylinder body 2 lower extreme one side is provided with push rod body 21, spout 13 has all been seted up to frame body 1 inner wall both sides, slider 16 is installed to spout 13 inside slidable, fixed block 22 is installed to push rod body 21 one side outer wall, mount 3 is installed to fixed block 22 one side outer wall.
The connection cover 23 is installed on one side of the outer wall of the upper end of the fixed block 22, the liquid level sensor 25 is arranged on one side of the lower end of the inner wall of the connection cover 23, as is well known to those skilled in the art, the buzzer 15 and the liquid level sensor 25 are required to be provided for normal operation, and as is well known to those skilled in the art, the buzzer 15 and the liquid level sensor 25 are provided in common practice, which are not described in detail herein, the person skilled in the art can perform any optional matching according to the requirement or convenience, the connection cover 23 achieves the purpose of shielding the push rod body 21, and the liquid level sensor 25 is used for detecting the liquid in the connection cover 23;
the inner wall of the connecting cover 23 is fixedly attached with a sealing gasket 24, and the sealing gasket 24 is contacted with the outer wall of the first hydraulic cylinder body 2. The sealing gasket 24 ensures the tightness between the connecting cover 23 and the first hydraulic cylinder body 2, when the push rod body 21 and the first hydraulic cylinder body 2 leak oil, the leaked hydraulic oil can be sprayed into the connecting cover 23, the liquid level sensor 25 achieves the purpose of detecting whether the push rod body 21 and the first hydraulic cylinder body 2 leak oil or not, and the liquid level sensor 25 transmits signals to an external controller.
The fixed frame 3 is positioned at the outer side of the frame body 1, and the size of the fixed frame 3 is larger than that of the frame body 1;
the second hydraulic cylinder bodies 31 which are distributed in parallel at equal intervals are arranged on one side of the inner wall of the fixed frame 3, the clamping blocks 32 are arranged on the outer wall of one side, opposite to the frame body 1, of the second hydraulic cylinder bodies 31, the outer walls of two sides of the clamping blocks 32 are designed in an arc shape, the clamping blocks 32 and the clamping grooves 11 achieve the purpose of fixing the fixed frame 3 and the fixed blocks 22, the position stability of the sliding blocks 16 and the supporting plates 17 is guaranteed, when the push rod bodies 21 retract, the fixed blocks 22, the connecting covers 23 and the fixed frame 3 move in the same direction, after the supporting plates 17 are lifted, the second hydraulic cylinder bodies 31 push the clamping blocks 32 to move into the clamping grooves 11, and the clamping blocks 32 and the clamping grooves 11 improve the stability of the supporting plates 17;
the fixture block 32 deviates from second pneumatic cylinder body 31 one side outer wall laminating and is fixed with friction pad 33, friction pad 33 has guaranteed the frictional force between fixture block 32 and the frame body 1, external controller control second pneumatic cylinder body 31 promotes fixture block 32 and takes place to remove, until friction pad 33 contacts with the frame body 1 outer wall, frictional force through between friction pad 33 and the frame body 1 has reduced the decline speed of backup pad 17, until fixture block 32 moves to draw-in groove 11 inside, thereby reached fixed backup pad 17 and the purpose of vehicle, avoid the vehicle to cause the injury to the staff of backup pad 17 below.
Working principle: the staff moves the vehicle to the upper end of the supporting plate 17, the supporting plate 17 is positioned below the chassis of the vehicle, the staff controls the first hydraulic cylinder body 2 to drive the push rod body 21 to retract and move through the external controller, so that the purpose of lifting the vehicle is achieved through the sliding block 16 and the supporting plate 17, when the push rod body 21 retracts, the fixed block 22, the connecting cover 23 and the fixing frame 3 move in the same direction, after the supporting plate 17 is lifted, the second hydraulic cylinder body 31 pushes the clamping block 32 to move into the clamping groove 11, and the clamping block 32 and the clamping groove 11 improve the stability of the supporting plate 17;
when the oil leakage phenomenon appears in push rod body 21 and first pneumatic cylinder body 2, the hydraulic oil of leaking can spray to the inside of connecting cover 23, level sensor 25 has reached the purpose of detecting whether the oil leakage of push rod body 21 and first pneumatic cylinder body 2, and level sensor 25 is to external controller, external controller control second pneumatic cylinder body 31 promotes fixture block 32 and takes place to remove, until friction pad 33 contacts with frame body 1 outer wall, frictional force through between friction pad 33 and the frame body 1 has reduced the decline speed of backup pad 17, until fixture block 32 moves to inside draw-in groove 11, thereby reached fixed backup pad 17 and the purpose of vehicle, avoid the vehicle to the staff of backup pad 17 below to cause the injury.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (3)
1. The utility model provides a hydraulic lifting device for auto repair, includes frame body (1), first pneumatic cylinder body (2), mount (3), draw-in groove (11), slider (16), push rod body (21) and junction housing (23), its characterized in that: the novel hydraulic pressure device is characterized in that the two sides of the outer wall of the upper end of the frame body (1) are respectively provided with a supporting frame (14), the outer wall of one side of the supporting frame (14) is provided with a first hydraulic cylinder body (2), one side of the lower end of the first hydraulic cylinder body (2) is provided with a push rod body (21), both sides of the inner wall of the frame body (1) are respectively provided with a sliding groove (13), sliding blocks (16) are slidably arranged in the sliding grooves (13), one side of the push rod body (21) is provided with a fixed block (22), one side of the outer wall of the fixed block (22) is provided with a fixing frame (3), one side of the outer wall of the upper end of the fixed block (22) is provided with a connecting cover (23), one side of the lower end of the inner wall of the connecting cover (23) is provided with a liquid level sensor (25), and the connecting cover (23) is used for detecting liquid inside the connecting cover (23).
A sealing gasket (24) is fixedly attached to the inner wall of the connecting cover (23), and the sealing gasket (24) is contacted with the outer wall of the first hydraulic cylinder body (2); the sealing gasket (24) ensures the tightness between the connecting cover (23) and the first hydraulic cylinder body (2);
the fixing frame (3) is positioned at the outer side of the frame body (1), and the size of the fixing frame (3) is larger than that of the frame body (1);
the second hydraulic cylinder bodies (31) which are distributed in parallel at equal intervals are arranged on one side of the inner wall of the fixing frame (3), clamping blocks (32) are arranged on the outer wall of one side, opposite to the frame body (1), of the second hydraulic cylinder bodies (31), the outer walls of the two sides of the clamping blocks (32) are designed in an arc shape, the clamping blocks (32) and the clamping grooves (11) achieve the purpose of fixing the fixing frame (3) and the fixing blocks (22), and the position stability of the sliding blocks (16) and the supporting plates (17) is guaranteed;
the clamping block (32) is fixed with a friction pad (33) away from the outer wall of one side of the second hydraulic cylinder body (31), and the friction pad (33) ensures the friction force between the clamping block (32) and the frame body (1).
2. The hydraulic lifting device for automobile maintenance according to claim 1, wherein: the first hydraulic cylinder body (2) drives the sliding block (16) to move through the push rod body (21);
the outer wall of one side of the sliding block (16) is provided with a supporting plate (17), the supporting plate (17) is positioned in the frame body (1), and the purpose of supporting a vehicle is achieved by the supporting plate (17);
a buzzer (15) is arranged on one side of the outer wall of the upper end of the frame body (1), the buzzer (15) is positioned between the two supporting frames (14), and the buzzer (15) can emit sound to remind a worker to maintain equipment in time;
clamping grooves (11) which are distributed in parallel at equal intervals are formed in the outer walls of the two sides of the frame body (1).
3. A method of using the hydraulic lifting device for auto repair according to claim 1 or 2, characterized in that: the method comprises the following steps:
step one: the staff moves the vehicle to the upper end of the supporting plate (17), and the supporting plate (17) is positioned below the chassis of the vehicle;
step two: the working personnel controls the first hydraulic cylinder body (2) to drive the push rod body (21) to retract and move through the external controller, so that the purpose of lifting the vehicle is achieved through the sliding block (16) and the supporting plate (17);
step three: when the push rod body (21) is retracted, the fixed block (22), the connecting cover (23) and the fixing frame (3) move in the same direction, and after the supporting plate (17) is lifted, the second hydraulic cylinder body (31) pushes the clamping block (32) to move into the clamping groove (11), and the stability of the supporting plate (17) is improved due to the clamping block (32) and the clamping groove (11);
step four: when the push rod body (21) and the first hydraulic cylinder body (2) have oil leakage, leaked hydraulic oil can be sprayed into the connecting cover (23), the liquid level sensor (25) achieves the purpose of detecting whether the push rod body (21) and the first hydraulic cylinder body (2) leak oil or not, and the liquid level sensor (25) transmits signals to an external controller;
step five: the external controller controls the second hydraulic cylinder body (31) to push the clamping block (32) to move until the friction pad (33) is contacted with the outer wall of the frame body (1), the descending speed of the supporting plate (17) is reduced through the friction force between the friction pad (33) and the frame body (1) until the clamping block (32) moves into the clamping groove (11), and therefore the purposes of fixing the supporting plate (17) and a vehicle are achieved, and the vehicle is prevented from injuring staff below the supporting plate (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210458327.8A CN114772505B (en) | 2022-04-27 | 2022-04-27 | Hydraulic lifting device for automobile maintenance and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210458327.8A CN114772505B (en) | 2022-04-27 | 2022-04-27 | Hydraulic lifting device for automobile maintenance and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114772505A CN114772505A (en) | 2022-07-22 |
| CN114772505B true CN114772505B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210458327.8A Active CN114772505B (en) | 2022-04-27 | 2022-04-27 | Hydraulic lifting device for automobile maintenance and application method thereof |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980065576U (en) * | 1997-05-02 | 1998-12-05 | 김영귀 | Car maintenance lift devices |
| KR200277286Y1 (en) * | 2002-03-08 | 2002-06-01 | 헤스본주식회사 | ascent and desent locking apparatus of double scissors type car lift |
| CN211813249U (en) * | 2019-12-05 | 2020-10-30 | 杨化源 | A safe type elevating platform for car maintenance |
| CN112174018A (en) * | 2020-09-22 | 2021-01-05 | 上海永畅汽车修理服务有限公司 | Lifting repairing device for automobile repair factory |
| CN112850548A (en) * | 2021-02-22 | 2021-05-28 | 衢州自力机械配件有限公司 | Hydraulic lifting device for automobile maintenance and use method thereof |
| CN214468701U (en) * | 2021-02-25 | 2021-10-22 | 广州环投增城环保能源有限公司 | Hydraulic push rod protective cover of slag discharging machine |
-
2022
- 2022-04-27 CN CN202210458327.8A patent/CN114772505B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980065576U (en) * | 1997-05-02 | 1998-12-05 | 김영귀 | Car maintenance lift devices |
| KR200277286Y1 (en) * | 2002-03-08 | 2002-06-01 | 헤스본주식회사 | ascent and desent locking apparatus of double scissors type car lift |
| CN211813249U (en) * | 2019-12-05 | 2020-10-30 | 杨化源 | A safe type elevating platform for car maintenance |
| CN112174018A (en) * | 2020-09-22 | 2021-01-05 | 上海永畅汽车修理服务有限公司 | Lifting repairing device for automobile repair factory |
| CN112850548A (en) * | 2021-02-22 | 2021-05-28 | 衢州自力机械配件有限公司 | Hydraulic lifting device for automobile maintenance and use method thereof |
| CN214468701U (en) * | 2021-02-25 | 2021-10-22 | 广州环投增城环保能源有限公司 | Hydraulic push rod protective cover of slag discharging machine |
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| Publication number | Publication date |
|---|---|
| CN114772505A (en) | 2022-07-22 |
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