CN113619538A - Car as a house balanced system - Google Patents
Car as a house balanced system Download PDFInfo
- Publication number
- CN113619538A CN113619538A CN202111041917.2A CN202111041917A CN113619538A CN 113619538 A CN113619538 A CN 113619538A CN 202111041917 A CN202111041917 A CN 202111041917A CN 113619538 A CN113619538 A CN 113619538A
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- supporting
- wall
- plate
- block
- supporting block
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- 230000000694 effects Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/32—Vehicles adapted to transport, to carry or to comprise special loads or objects comprising living accommodation for people, e.g. caravans, camping, or like vehicles
- B60P3/36—Auxiliary arrangements; Arrangements of living accommodation; Details
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Transportation (AREA)
- Handcart (AREA)
Abstract
The invention discloses a recreational vehicle balance system which comprises a fixing plate, a second supporting block, a driven wheel, a first screw hole and the driven wheel, wherein a bottom plate is arranged on one side of the outer wall of the lower end of the fixing plate, pressure sensors are mounted at four corners of the outer wall of the lower end of the bottom plate, a supporting plate is mounted on one side of the outer wall of the lower end of each pressure sensor, fixing blocks are mounted on the outer walls of the opposite sides of the fixing plate and the bottom plate, the first supporting block and the second supporting block are respectively arranged between the fixing plate and the bottom plate, a bearing is embedded in the second supporting block, and a screw rod is rotatably mounted in the bearing. According to the invention, by arranging the motor, the screw rod and the driven wheel, the effect of convenience for a driver is achieved, the traditional hydraulic lifting mode is avoided, the oil leakage phenomenon is avoided, and the emergency use of the vehicle is ensured, so that the driver can maintain the vehicle independently, the equipment is ensured to be convenient to popularize, and the popularization effect of the equipment is improved.
Description
Technical Field
The invention relates to the technical field of motor home balancing devices, in particular to a motor home balancing system.
Background
The car as a house, also known as the home on the wheel, has two functions of 'house' and 'car', but its attribute is still the car, is a kind of car that can move, has the essential basic facilities at home, and the car as a house is the fashion facility car kind of introducing by foreign countries, and the facility at home on its car has: furniture such as bedding, stoves, refrigerators, cabinets, sofas, dining tables and chairs, washroom facilities, air conditioners, televisions, stereos and the like and electrical appliances can be divided into driving areas, living areas, bedroom areas, sanitary areas, kitchen areas and the like, and the limousine is a fashion product which integrates clothes, food, lives and rows and realizes 'travel in life and life in travel'.
Through mass retrieval, a typical touring car leveling method and system disclosed by the publication number CN111252042A of the touring car balancing device in the prior art are found, and support legs of all jacks are adjusted to move downwards; judging whether the supporting legs of the jacks are all grounded; if not, continuing to adjust the support legs of the jacks to move downwards; if yes, acquiring the angle data of the whole motor home; judging whether the motor home is in a horizontal state or not according to the whole vehicle angle data; if not, adjusting the extension length of each jack according to the angle data of the whole vehicle; if so, returning to the step of judging whether the motor home is in a horizontal state according to the whole vehicle angle data; and when the caravan is in a horizontal state, all the jacks are locked. The invention can improve the leveling accuracy of the motor home and reduce the labor and time cost.
Current car as a house is at the parking in-process, because the inside equipment gross weight that bears of car as a house is heavier, consequently need lift up the car as a house to effectively alleviate car as a house suspension and tire load, prolong its life, and the current mode that the device that lifts up adopted the pneumatic cylinder usually works, thereby nevertheless can draw forth fluid leakage and the problem that the driver of being not convenient for was independently maintained with the problem, directly lead to equipment to be unfavorable for the popularization, influence the popularization effect of equipment.
Disclosure of Invention
The present invention is directed to a motor home balancing system to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a car as a house balanced system, includes fixed plate, second supporting shoe, follows driving wheel, first screw and follows the driving wheel, fixed plate lower extreme outer wall one side is provided with the bottom plate, the fixed block is all installed to the relative one side outer wall of fixed plate and bottom plate, be provided with first supporting shoe and second supporting shoe between fixed plate and the bottom plate respectively, the bearing is installed in the inside embedding of second supporting shoe, the screw rod is installed in the inside rotation of bearing.
Preferably, the four corners of the outer wall of the lower end of the bottom plate are respectively provided with a pressure sensor, one side of the outer wall of the lower end of the pressure sensor is provided with a supporting plate, the outer walls of the two sides of the supporting plate are both in arc-shaped design, and the pressure sensors achieve the purpose of detecting the pressure borne by the supporting plates, so that the pressure borne by each supporting rod can be ensured to be consistent;
the fixed plate upper end outer wall both sides all set up equidistance parallel distribution's fixed orifices, the staff can make the fixed plate be connected with the frame through the fixed orifices, has guaranteed fixed plate positional stability.
Preferably, the outer walls of the opposite sides of the first supporting block and the second supporting block are rotatably provided with supporting rods distributed in a rectangular array, the other ends of the supporting rods are rotatably connected with the fixed block, and the first supporting block, the second supporting block and the fixed block ensure the rotational stability of the supporting rods between the fixed plate and the bottom plate;
a first screw hole is formed in the first supporting block.
Preferably, the outer wall of one end of the screw rod is in threaded connection with the inside of the first screw hole, and the screw rod is meshed with the first screw hole, so that the aim of driving the supporting rod to rotate is fulfilled, and the aim of adjusting the distance between the fixing plate and the bottom plate is fulfilled;
the screw penetrates through the outer wall of one end of the bearing and is provided with a connecting block, the connecting block is designed in a hexagonal shape, and second screw holes are symmetrically formed in the connecting block;
the connecting block deviates from screw rod one side outer wall and is provided with from the driving wheel, from the inside symmetry of driving wheel and seted up the movable hole, the movable hole inside is provided with the bolt, bolt run through movable hole one side outer wall threaded connection inside the second screw, meshing force between bolt and the second screw has guaranteed to be connected stability from between driving wheel and the connecting block.
Preferably, a motor is installed on the outer wall of one side of the second supporting block, a driving wheel is arranged on the outer wall of one end of the motor, the driving wheel is meshed with the driven wheel, and the motor drives the driven wheel to rotate through the driving wheel.
Compared with the prior art, the invention has the beneficial effects that: the invention achieves the effect of convenient use for a driver by arranging the motor, the screw rod and the driven wheel, a user controls the motor to work by an external controller, the motor drives the driven wheel to rotate by the driving wheel, so that the screw rod is positioned in the bearing to rotate circumferentially, the screw rod is meshed with the first screw hole, the distance between the first supporting block and the second supporting block is drawn close, and the supporting rods are driven to rotate respectively in the first supporting block, the second supporting block and the fixed block, thereby achieving the purpose of adjusting the distance between the fixed plate and the bottom plate, the supporting plate is contacted with the ground, achieving the purpose of lifting the caravan, avoiding the traditional hydraulic lifting mode, avoiding the oil leakage phenomenon, and the pressure sensor achieves the purpose of detecting the pressure borne by the supporting plate, thereby ensuring the pressure borne by each supporting rod to be consistent, and ensuring the consistency of the pressure borne by equipment, the ground and the vehicle, when the motor broke down, the manual spanner of taking of staff rotated the bolt, made inside the bolt breaks away from the second screw, and the staff can take the manual rotation connecting block of spanner to drive the screw rod and rotate, reach the purpose of lifting up the vehicle, guarantee that the vehicle can emergent the use, thereby be convenient for the driver independently maintain, guarantee equipment facilitate promotion, improved the popularization effect of equipment.
Drawings
FIG. 1 is a schematic external view of a fixing plate structure according to the present invention;
FIG. 2 is a schematic cross-sectional view of a second support block according to the present invention;
FIG. 3 is a schematic top-down view of a second support block structure according to the present invention;
FIG. 4 is a top view of the fixing plate structure of the present invention;
FIG. 5 is an enlarged view of a second support block according to the present invention;
FIG. 6 is an enlarged view of the structure A in FIG. 2 according to the present invention.
In the figure: 1. a fixing plate; 11. a base plate; 12. a pressure sensor; 13. a support plate; 14. a fixed block; 15. a first support block; 16. a first screw hole; 17. a fixing hole; 2. a second support block; 21. a motor; 22. a support bar; 23. a driving wheel; 24. a bearing; 25. a screw; 26. connecting blocks; 27. a second screw hole; 3. a driven wheel; 31. a movable hole; 32. and (4) bolts.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element 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 for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 6, the present invention provides two embodiments:
the first embodiment is as follows: a recreational vehicle balance system comprises a fixing plate 1, a second supporting block 2, a driven wheel 3, a first screw hole 16 and the driven wheel 3, wherein a bottom plate 11 is arranged on one side of the outer wall of the lower end of the fixing plate 1, fixing blocks 14 are respectively arranged on the outer walls of the opposite sides of the fixing plate 1 and the bottom plate 11, a first supporting block 15 and a second supporting block 2 are respectively arranged between the fixing plate 1 and the bottom plate 11, a bearing 24 is embedded in the second supporting block 2, a screw rod 25 is rotatably arranged in the bearing 24, pressure sensors 12 are respectively arranged at the four corners of the outer wall of the lower end of the bottom plate 11, a supporting plate 13 is arranged on one side of the outer wall of the lower end of each pressure sensor 12, the outer walls of the two sides of the supporting plate 13 are both in arc-shaped design, and the pressure sensors 12 achieve the purpose of detecting the pressure borne by the supporting plate 13, therefore, the pressure borne by each supporting rod 22 can be ensured to be consistent, and the consistency of the pressure borne by the equipment, the ground and the vehicle can be ensured;
the fixed orifices 17 of equidistance parallel distribution are all seted up to fixed plate 1 upper end outer wall both sides, and the staff can make fixed plate 1 be connected with the frame through fixed orifices 17, has guaranteed fixed plate 1 positional stability.
The outer walls of the opposite sides of the first supporting block 15 and the second supporting block 2 are rotatably provided with supporting rods 22 distributed in a rectangular array, the other ends of the supporting rods 22 are rotatably connected with the fixed block 14, and the first supporting block 15, the second supporting block 2 and the fixed block 14 ensure the rotating stability of the supporting rods 22 between the fixed plate 1 and the bottom plate 11;
the first support block 15 is provided therein with a first screw hole 16.
The outer wall of one end of the screw rod 25 is in threaded connection with the inside of the first screw hole 16, the screw rod 25 is meshed with the first screw hole 16, the purpose of driving the supporting rod 22 to rotate is achieved, the purpose of adjusting the distance between the fixing plate 1 and the bottom plate 11 is achieved, a user controls the motor 21 to work through an external controller, the motor 21 drives the driven wheel 3 to rotate through the driving wheel 23, the screw rod 25 is located inside the bearing 24 to rotate circumferentially, the screw rod 25 is meshed with the first screw hole 16, the distance between the first supporting block 15 and the second supporting block 2 is shortened, the supporting rod 22 is driven to respectively rotate inside the first supporting block 15, the second supporting block 2 and the fixing plate 14, the purpose of adjusting the distance between the fixing plate 1 and the bottom plate 11 is achieved, the supporting plate 13 is in contact with the ground, and the purpose of lifting up the caravan is achieved.
Example two: a motor home balance system comprises a fixing plate 1, a second supporting block 2, a driven wheel 3, a first screw hole 16 and the driven wheel 3, wherein a bottom plate 11 is arranged on one side of the outer wall of the lower end of the fixing plate 1, fixing blocks 14 are arranged on the outer walls of the opposite sides of the fixing plate 1 and the bottom plate 11, a first supporting block 15 and a second supporting block 2 are respectively arranged between the fixing plate 1 and the bottom plate 11, a bearing 24 is embedded in the second supporting block 2, a screw rod 25 is rotatably arranged in the bearing 24, the outer wall of one end of the screw rod 25 is in threaded connection with the inside of the first screw hole 16, the screw rod 25 is meshed with the first screw hole 16, the purpose of driving a supporting rod 22 to rotate is achieved, and therefore the purpose of adjusting the distance between the fixing plate 1 and the bottom plate 11 is achieved;
the screw 25 penetrates through the outer wall of one end of the bearing 24 and is provided with a connecting block 26, the connecting block 26 is designed in a hexagonal shape, and second screw holes 27 are symmetrically formed in the connecting block 26;
connecting block 26 deviates from screw rod 25 one side outer wall and is provided with from driving wheel 3, has seted up movable hole 31 from the inside symmetry of driving wheel 3, and the inside bolt 32 that is provided with of movable hole 31, and inside bolt 32 run through movable hole 31 one side outer wall threaded connection in second screw 27, meshing force between bolt 32 and the second screw 27 has guaranteed to be connected stability from between driving wheel 3 and the connecting block 26.
As is well known to those skilled in the art, the motor 21 is further required to be provided to enable the motor 21 to normally work, and as is well known to those skilled in the art, the provision of the motor 21 is common and is a common practice, which is not repeated herein, and those skilled in the art can optionally select and assemble the motor according to their needs or convenience, the outer wall of one end of the motor 21 is provided with the driving wheel 23, the driving wheel 23 is engaged with the driven wheel 3, the motor 21 drives the driven wheel 3 to rotate through the driving wheel 23, when the motor 21 fails, the worker manually takes the wrench to rotate the bolt 32, so that the bolt 32 is disengaged from the inside of the second screw hole 27, and the worker can take the wrench to manually rotate the connecting block 26, thereby driving the screw 25 to rotate, and achieving the purpose of lifting the vehicle, guarantee that the vehicle can emergent use to the driver of being convenient for independently maintains, guarantees equipment facilitate promotion, has improved the popularization effect of equipment.
The working principle is as follows: the user controls the motor 21 to work through the external controller, the motor 21 drives the driven wheel 3 to rotate through the driving wheel 23, so that the screw rod 25 is positioned inside the bearing 24 to rotate circumferentially, the screw rod 25 is meshed with the first screw hole 16 to draw the distance between the first supporting block 15 and the second supporting block 2, and drives the supporting rod 22 to rotate inside the first supporting block 15, the second supporting block 2 and the fixing block 14 respectively, the purpose of adjusting the distance between the fixing plate 1 and the bottom plate 11 is achieved, the supporting plate 13 is in contact with the ground, the purpose of lifting the caravan is achieved, the pressure sensor 12 achieves the purpose of detecting the pressure borne by the supporting plate 13, the pressure borne by each supporting rod 22 can be ensured to be consistent, when the motor 21 breaks down, the worker manually takes the wrench to rotate the bolt 32, so that the bolt 32 is separated from the inside of the second screw hole 27, the worker can manually rotate the connecting block 26, thereby drive screw rod 25 and rotate, reach the purpose of lifting the vehicle, guarantee that the vehicle can use by emergency.
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 attributes 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 (5)
1. The utility model provides a car as a house balanced system, includes fixed plate (1), second supporting shoe (2), follows driving wheel (3), first screw (16) and follows driving wheel (3), its characterized in that: the fixing plate is characterized in that a bottom plate (11) is arranged on one side of the outer wall of the lower end of the fixing plate (1), a fixing block (14) is installed on the outer wall of one side, opposite to the fixing plate (1) and the bottom plate (11), of the fixing plate (1), a first supporting block (15) and a second supporting block (2) are arranged between the fixing plate (1) and the bottom plate (11) respectively, a bearing (24) is installed in the second supporting block (2) in an embedded mode, and a screw rod (25) is installed in the bearing (24) in an internal rotating mode.
2. The motor home balancing system of claim 1, wherein: the four corners of the outer wall of the lower end of the bottom plate (11) are respectively provided with a pressure sensor (12), one side of the outer wall of the lower end of the pressure sensor (12) is provided with a supporting plate (13), the outer walls of the two sides of the supporting plate (13) are both in an arc shape, and the pressure sensors (12) achieve the purpose of detecting the pressure borne by the supporting plate (13), so that the pressure borne by each supporting rod (22) can be ensured to be consistent;
fixed plate (1) upper end outer wall both sides all set up equidistance parallel distribution's fixed orifices (17), the staff can make fixed plate (1) be connected with the frame through fixed orifices (17), has guaranteed fixed plate (1) positional stability.
3. The motor home balancing system of claim 1, wherein: the outer walls of the opposite sides of the first supporting block (15) and the second supporting block (2) are respectively rotatably provided with supporting rods (22) distributed in a rectangular array, the other ends of the supporting rods (22) are rotatably connected with the fixed block (14), and the first supporting block (15), the second supporting block (2) and the fixed block (14) ensure the rotation stability of the supporting rods (22) between the fixed plate (1) and the bottom plate (11);
a first screw hole (16) is formed in the first supporting block (15).
4. The motor home balancing system of claim 1, wherein: the outer wall of one end of the screw rod (25) is in threaded connection with the inside of the first screw hole (16), the screw rod (25) is meshed with the first screw hole (16), the aim of driving the supporting rod (22) to rotate is achieved, and therefore the aim of adjusting the distance between the fixing plate (1) and the bottom plate (11) is achieved;
the screw rod (25) penetrates through the outer wall of one end of the bearing (24) and is provided with a connecting block (26), the connecting block (26) is designed in a hexagonal shape, and second screw holes (27) are symmetrically formed in the connecting block (26);
connecting block (26) deviate from screw rod (25) one side outer wall and are provided with from driving wheel (3), activity hole (31) have been seted up to driving wheel (3) inside symmetry, activity hole (31) inside is provided with bolt (32), bolt (32) run through activity hole (31) one side outer wall threaded connection inside second screw (27), meshing force between bolt (32) and second screw (27) has guaranteed to be connected stability from between driving wheel (3) and connecting block (26).
5. The motor home balancing system of claim 1, wherein: the motor (21) is installed on the outer wall of one side of the second supporting block (2), a driving wheel (23) is arranged on the outer wall of one end of the motor (21), the driving wheel (23) is meshed with the driven wheel (3), and the motor (21) drives the driven wheel (3) to rotate through the driving wheel (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111041917.2A CN113619538A (en) | 2021-09-07 | 2021-09-07 | Car as a house balanced system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111041917.2A CN113619538A (en) | 2021-09-07 | 2021-09-07 | Car as a house balanced system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113619538A true CN113619538A (en) | 2021-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111041917.2A Pending CN113619538A (en) | 2021-09-07 | 2021-09-07 | Car as a house balanced system |
Country Status (1)
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|---|---|
| CN (1) | CN113619538A (en) |
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| CN105043783A (en) * | 2015-06-12 | 2015-11-11 | 焦作大学 | Electromechanical leveling test system based on single-chip microcomputer |
| CN106089862A (en) * | 2016-06-23 | 2016-11-09 | 江西洪都国际机电有限责任公司 | A kind of Double tabletop four-point supporting fast leveling system and leveling method thereof |
| CN206569961U (en) * | 2017-03-22 | 2017-10-20 | 浙江耀欧汽车零部件有限公司 | A kind of recreational vehicle electric jack stand of principal characteristic single leg support |
| CN207361682U (en) * | 2017-08-28 | 2018-05-15 | 浙江耀欧汽车零部件有限公司 | A kind of single leg support recreational vehicle electric jack stand |
| CN108285104A (en) * | 2018-03-14 | 2018-07-17 | 浙江耀欧汽车零部件有限公司 | A kind of lightweight single leg support recreational vehicle electric jack stand |
| CN110116666A (en) * | 2019-06-14 | 2019-08-13 | 龙岩市海德馨汽车有限公司 | A kind of intellectual monitoring control supply vehicle and its control method |
| CN112265927A (en) * | 2020-11-07 | 2021-01-26 | 江苏亚飞机械制造有限公司 | Novel scissor jack |
| CN216659848U (en) * | 2021-09-07 | 2022-06-03 | 济南同高自控设备有限公司 | Car as a house balanced system |
-
2021
- 2021-09-07 CN CN202111041917.2A patent/CN113619538A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043783A (en) * | 2015-06-12 | 2015-11-11 | 焦作大学 | Electromechanical leveling test system based on single-chip microcomputer |
| CN106089862A (en) * | 2016-06-23 | 2016-11-09 | 江西洪都国际机电有限责任公司 | A kind of Double tabletop four-point supporting fast leveling system and leveling method thereof |
| CN206569961U (en) * | 2017-03-22 | 2017-10-20 | 浙江耀欧汽车零部件有限公司 | A kind of recreational vehicle electric jack stand of principal characteristic single leg support |
| CN207361682U (en) * | 2017-08-28 | 2018-05-15 | 浙江耀欧汽车零部件有限公司 | A kind of single leg support recreational vehicle electric jack stand |
| CN108285104A (en) * | 2018-03-14 | 2018-07-17 | 浙江耀欧汽车零部件有限公司 | A kind of lightweight single leg support recreational vehicle electric jack stand |
| CN110116666A (en) * | 2019-06-14 | 2019-08-13 | 龙岩市海德馨汽车有限公司 | A kind of intellectual monitoring control supply vehicle and its control method |
| CN112265927A (en) * | 2020-11-07 | 2021-01-26 | 江苏亚飞机械制造有限公司 | Novel scissor jack |
| CN216659848U (en) * | 2021-09-07 | 2022-06-03 | 济南同高自控设备有限公司 | Car as a house balanced system |
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