CN111606255A - Large-scale loading and unloading vehicle for container - Google Patents
Large-scale loading and unloading vehicle for container Download PDFInfo
- Publication number
- CN111606255A CN111606255A CN202010554119.9A CN202010554119A CN111606255A CN 111606255 A CN111606255 A CN 111606255A CN 202010554119 A CN202010554119 A CN 202010554119A CN 111606255 A CN111606255 A CN 111606255A
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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
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/14—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
- B66F9/146—Side shift, i.e. both forks move together sideways relative to fork support
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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
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/14—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
- B66F9/147—Whole unit including fork support moves relative to mast
- B66F9/149—Whole unit including fork support rotates
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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
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/19—Additional means for facilitating unloading
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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
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
-
- 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
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/22—Hydraulic devices or systems
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention relates to the technical field of container freight handling vehicles, and provides a large-scale loading and unloading vehicle for containers, which comprises a loading and unloading vehicle body, a lifting frame, a rotary attachment, two fork frames, two forks, a side-shifting driving device, a connecting seat and two groups of guide shafts, wherein the two groups of guide shafts are respectively arranged at the left part and the right part of the front surface of a rotary frame, the two forks are respectively fixedly arranged on the fork frames, two ends of the connecting seat are respectively and fixedly connected with the two fork frames, the two fork frames are respectively and slidably arranged on the two groups of guide shafts, the side-shifting driving device is arranged at the front surface of the rotary frame, an output shaft of the side-shifting driving device is connected with the connecting seat and drives the connecting seat to move left and right on the rotary frame so as to drive the two fork frames to simultaneously slide left and. The invention solves the problem that the existing large-scale loading and unloading vehicle can not carry out integral rotation tipping loading and unloading on a medium and large-scale container and can not load and unload the whole container.
Description
Technical Field
The invention relates to the technical field of container freight handling vehicles, in particular to a large-scale handling vehicle for a container.
Background
The container is a large-sized loading container with certain rigidity, strength and size specification and specially used for turnover, the container is used for transferring goods, the goods can be directly loaded in a warehouse of a shipper and unloaded in the warehouse of a consignee, when the vehicle and the ship are changed midway, the goods do not need to be taken out of the container, the whole container can be directly lifted on a vehicle ship or directly overturned by rotating the container to directly dump the goods on the vehicle ship, but the container needs to be lifted by fixed large-sized lifting equipment to realize one-time unloading of the goods on the container or transfer of the position of the container. The large-scale hoisting equipment is generally arranged at a large wharf and the like, and the small wharf is generally carried by only manually combining a forklift, so that the carrying efficiency is low. For transporting containers from a place where they are loaded to a vehicle or ship, it is also necessary to mount or dismount containers, which are full of cargo or empty, on or from a container transport vehicle. The existing method for small containers is to adopt a large-scale loading and unloading vehicle to tip and load and unload the containers onto a container transport vehicle, but for large containers, only large-scale hoisting equipment can be used for large wharfs to operate the containers, and the containers which are dragged and carried on the container transport vehicle can be loaded and unloaded from a cargo production place in general, because the gravity center of the whole container is not at the central position of a fork of the large loading and unloading vehicle after the large containers are loaded in the existing large loading and unloading vehicle is limited in the lifting power of the large loading and unloading vehicle, the gravity center is deviated, the force arm is shortened when an accessory of the large loading and unloading vehicle lifts and rotates to drive the containers to rotate, the power of the large loading and unloading vehicle is fixed, and the operations such as centering, large container lifting and rotating and tipping cannot be caused by insufficient power, so that the use of medium and large containers is limited and cannot be effectively used in the lifting places without large-scale equipment such as, when the goods are transported from the medium and large containers to the vehicle and ship, only the manual work and the forklift are adopted to combine to load and unload the goods, the transportation cost of the model goods transportation is increased, the cost of transporting the medium and large containers to the vehicle and ship is increased, and meanwhile, the operation is troublesome and the efficiency is low. For example, Chinese patent documents: CN201821590075.X is a special container carrying accessory with a clamping function, which comprises a fork frame detachably connected with a lifting device of a forklift, wherein a cross beam is arranged on one side of the fork frame far away from the forklift, two forks of an L-shaped structure for inserting corresponding hole positions of a container are symmetrically arranged on the left and right of the cross beam, the forks are slidably connected with connecting rods of the L-shaped structure in the horizontal plane along the length direction of the container, the end parts of the connecting rods are connected with hand grips clamped with locking rods at the end parts of the container, and springs are arranged between the connecting rods and the forks; the upper end of the fork is also in pin joint with a pressure plate used for pressing the top surface of the container, and a pressure cylinder is arranged between the pressure plate and the fork. The container can only be transported flatly, the whole container cannot be tipped over, and meanwhile, when various goods are loaded in the container to cause the center of gravity to deviate from the middle part, hidden dangers such as tipping over and the like are caused by the adoption of the special transportation tool for the container. Therefore, a large-sized loading and unloading vehicle capable of loading and unloading goods by performing operations such as integral tipping and rotating on medium and large-sized containers is urgently needed to be developed.
Disclosure of Invention
Therefore, aiming at the problems, the invention provides the large-scale loading and unloading vehicle for the container, which has a reasonable and stable structure, can adjust the integral gravity center of the container, adjust and enlarge the rotating force arm of the rotating container to be rotated, ensure that the large-scale loading and unloading vehicle realizes the integral tipping of small, medium and large containers at random rotating angles on the basis of the rotating power of the existing accessory, and is convenient for the integral quick tipping and unloading, loading and unloading of the container and the loading and unloading of the whole container on the container transport vehicle.
In order to solve the technical problem, the invention adopts the following scheme: a large-scale loading and unloading vehicle for containers comprises a loading and unloading vehicle body, a lifting frame, a rotary accessory, two fork frames and two forks, wherein the rotary accessory comprises a rotary driving device, a fixed frame, a rotary support and a rotary frame, one end face of an outer ring of the rotary support is fixedly connected with the front face of the fixed frame, the rotary driving device is arranged at the back face of the fixed frame, an output shaft of the rotary driving device penetrates through the fixed frame to be meshed with an inner ring of the rotary support on the front face of the fixed frame to drive the inner ring of the rotary support to rotate, the free end face of the inner ring of the rotary support is fixedly connected with the back face of the rotary frame, the loading and unloading vehicle body is connected with the fixed frame through the lifting frame to drive the rotary accessory to ascend and descend, the loading and unloading vehicle further comprises a side shifting driving device, a connecting seat and two groups of guide shafts, the, the two fork frames are respectively arranged on the two groups of guide shafts in a sliding manner, the side shift driving device is arranged on the front face of the rotating frame, the output shaft of the side shift driving device is connected with the output shaft of the side shift driving device and drives the connecting seat to move left and right on the rotating frame to drive the two fork frames to simultaneously slide left and right on the two groups of guide shafts in a reciprocating manner, and the side shift driving device is connected with and controlled by the loading and unloading vehicle body.
Further, every group guiding axle includes at least a set of guide unit, guide unit includes the fixing base that two intervals set up and both ends respectively with two fixing base fixed connection's fixed axle.
Furthermore, each group of guide shafts comprises two groups of guide units which are respectively arranged on the upper part and the lower part of the left part or the right part of the front surface of the rotating frame in parallel.
Furthermore, a shaft sleeve matched with the two groups of guide units is arranged on one surface of each fork frame facing the rotating frame, and the two fork frames are respectively sleeved on the fixed shafts of the two groups of guide units in a sliding mode through the shaft sleeves.
Further, the side shift driving device is an air cylinder or an oil cylinder.
Further, the swing driving means comprises at least one swing motor.
Furthermore, the rotary driving device comprises two rotary motors, output shafts of the two rotary motors are connected and drive the inner ring of the rotary support, and the output shafts of the two rotary motors are distributed in parallel and in the same direction to drive the inner ring of the rotary support to rotate together.
Furthermore, the rotary driving device comprises three rotary motors, output shafts of the three rotary motors are all connected with and drive the inner ring of the rotary support, and the output shafts of the three rotary motors are distributed in the same direction in a regular triangle manner to drive the inner ring of the rotary support to rotate together.
By adopting the technical scheme, the invention has the beneficial effects that: the two fork frames fixedly connected with the forks are connected with the guide shafts in a translational sliding manner by arranging two groups of guide shafts on the rotating frame, the two fork frames are fixed by the connecting seat according to the distance between the fork slots arranged on the container so that the distance between the two forks is matched with the fork slots on the container, and the lateral movement driving device is arranged to be connected with the connecting seat and drive the connecting seat to horizontally and transversely move so as to drive the two fork frames to simultaneously slide back and forth on the two groups of guide shafts, when the gravity center position of the container is deviated, a driver can start the lateral movement driving device according to the approximate position of the gravity center of the container to drive the container on the forks to integrally laterally move relative to the rotating frame, so that the gravity center of the whole container is deviated towards the direction opposite to the rotating direction, the force arm in the rotating power direction is prolonged, the power requirement for rotating the whole container is reduced, and the integral, the whole structure is reasonable and stable, the integral gravity center of the container can be adjusted rapidly, the rotating force arm of the rotating direction of the rotating container is adjusted and enlarged, the large loading and unloading vehicle realizes the integral tipping of the random rotating angle of small, medium and large containers on the basis of the rotating power of the existing accessory, the container is convenient to integrally and rapidly tip over and unload, load and unload the whole container on the container transport vehicle, through further arrangement, namely, each group of guide shafts is provided with two groups of parallel guide units, two fork frames can stably laterally move on a rotating frame, the stability of the integral structure is enhanced, the rotating torque force of 1.5 times can be realized through arranging the rotary driving device into two rotary motors which jointly push the rotating frame to rotate by the distribution of regular triangles, the rotating torque force of 1.8 times can be realized through arranging the rotary driving device into three rotary motors which jointly push the rotating frame to rotate by regular triangles, and the rotation of 40, the integral rotary tipping of the large container is more effectively realized, and the large container can be widely popularized and applied.
Drawings
FIG. 1 is a schematic diagram of a portion of an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of another embodiment of the present invention;
fig. 3 is a partially exploded view of an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, wherein the body, the crane and the rotary attachment of the loading and unloading truck are all the prior art, and are disclosed in patent documents CN201921470209.9, such as a forklift truck, CN201410550324.2 container carrier, etc., and only the newly designed part of the present invention will be described in detail below.
Referring to fig. 1-3, a preferred large-sized loading and unloading vehicle for containers according to the present invention comprises a loading and unloading vehicle body, a lifting frame, a rotary accessory, two fork frames 2, two forks 3, a side-shifting driving device 4, a connecting seat 5 and two sets of guide shafts 6, wherein the loading and unloading vehicle body comprises a vehicle body, a cab arranged on the vehicle body and a plurality of wheels arranged under the vehicle body, the loading and unloading vehicle body is connected with a fixed frame through the lifting frame to drive the rotary accessory to lift up and down, the rotary accessory comprises a rotary driving device 11, a fixed frame 12, a rotary support 13 and a rotary frame 14, one end face of an outer ring of the rotary support 13 is fixedly connected with a front face of the fixed frame 12, the rotary driving device 11 comprises three rotary motors, the rotary driving device 11 is arranged on a back face of the fixed frame 12, and an output shaft of the rotary driving device 11 penetrates through the fixed frame, three output shafts of rotary motors of a rotary driving device 11 are all connected with and drive an inner ring of a rotary support 13, the output shafts of the three rotary motors are distributed in a regular triangle way and are arranged in the same direction to jointly drive the inner ring of the rotary support 13 to rotate, the free end surface of the inner ring of the rotary support 13 is fixedly connected with the back of a rotary frame 14, two groups of guide shafts 6 are respectively arranged at the left part and the right part of the front of the rotary frame 14, each group of guide shafts 6 comprises two groups of guide units, each group of guide units comprises two fixing seats arranged at intervals and fixing shafts, two ends of each fixing seat are respectively and fixedly connected with the two fixing seats, the two groups of guide units are respectively arranged at the upper part and the lower part of the left part or the right part of the front of the rotary frame 14 in parallel, two forks 3 are respectively and fixedly arranged on fork frames 2, two ends of each connecting, the two fork frames 2 are respectively slidably sleeved on the fixed shafts of the two groups of guide units through shaft sleeves 21, the side shift driving device 4 is an oil cylinder, the side shift driving device 4 is arranged on the front face of the rotating frame 14, an output shaft of the side shift driving device 4 is connected with and drives the connecting seat 5 to move left and right on the rotating frame 14 to drive the two fork frames 2 to simultaneously slide left and right on the two groups of guide shafts 6, and the side shift driving device 4 is connected with and controlled by a cab of the loading and unloading vehicle body.
According to the invention, one or more groups of guide units can be arranged on the guide shaft according to the requirement of a connection stable structure between the loading and unloading vehicle and the fork frame, and meanwhile, shaft sleeves matched with the guide units are arranged on the fork frame, so that the fork frame can be slidably sleeved on the fixed shafts of the guide units through the shaft sleeves, and the side shift driving device can also be an air cylinder; the rotary driving device can also be provided with one, two or three containers which are uniformly distributed in the same direction and jointly drive the inner ring of the rotary support to rotate, lift and rotate the torque force to match the containers with the corresponding tonnage according to the requirements of large tonnage, medium tonnage and small tonnage of the containers to be loaded and unloaded and driven by the loading and unloading vehicle.
The invention arranges two groups of guide shafts on the rotating frame, connects the fork frame fixedly connected with the forks with the guide shafts in a translational sliding way, fixes the two fork frames by the connecting seat according to the distance between the fork slots arranged on the container to ensure that the distance between the two forks is matched with the fork slots on the container, simultaneously arranges the side shift driving device for connecting and driving the connecting seat to horizontally and transversely move so as to drive the two fork frames to simultaneously slide back and forth on the two groups of guide shafts, when the gravity center position of the container deviates, a driver can start the side shift driving device according to the approximate position of the gravity center of the container to drive the container on the forks to wholly shift relative to the rotating frame, and shift the gravity center of the whole container to the opposite rotating direction, so that the force arm of the rotating power direction is lengthened so as to reduce the power requirement of rotating the whole container, the whole container can be effectively and rapidly rotated, the whole structure is reasonable and stable, the whole gravity center of the container can be rapidly adjusted, the rotating force arm of the rotating direction of the rotating container is adjusted and enlarged, the large loading and unloading vehicle can realize the whole tipping of the random rotating angle of small, medium and large containers on the basis of the rotating power of the existing accessory, the container can be conveniently and rapidly tipped for unloading, loading and loading the whole container on the container transport vehicle, through further arrangement, each group of guide shafts is provided with two groups of parallel guide units, two fork frames can be stably laterally moved on a rotating frame, the stability of the whole structure is enhanced, the rotating torque of 1.5 times can be realized by arranging the rotary driving device into two rotary motors to jointly push, and the rotating torque of 1.8 times can be realized by arranging the rotary driving device into three rotary motors which jointly push the rotating frame to rotate in a regular triangle distribution, the rotation of the 40-ton container is realized, the integral rotation tipping of the large container is more effectively realized, and the large container can be widely popularized and applied.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a large-scale loading and unloading car for container, includes loading and unloading car body, crane, rotatory accessory, two fork framves and two forks, rotatory accessory includes slewing drive device, mount, slewing bearing and swivel mount, slewing bearing outer lane one end terminal surface and the positive looks rigid coupling of mount, slewing drive device locates the mount back and slewing drive device output shaft and passes mount and mount openly go up the slewing bearing inner circle and mesh mutually and drive the slewing bearing inner circle and rotate, slewing bearing inner circle free end face and swivel mount back fixed connection, and the loading and unloading car body is connected through crane and mount and drives rotatory accessory oscilaltion, its characterized in that: the side-moving type forklift is characterized by further comprising a side-moving driving device, a connecting seat and two groups of guide shafts, wherein the two groups of guide shafts are respectively arranged at the left part and the right part of the front side of the rotating frame, the two forks are respectively fixedly arranged on the fork frames, the two ends of the connecting seat are respectively fixedly connected with the two fork frames, the two fork frames are respectively arranged on the two groups of guide shafts in a sliding manner, the side-moving driving device is arranged at the front side of the rotating frame and drives an output shaft of the side-moving driving device to be connected with the connecting seat to drive the connecting seat to move left and right on the rotating frame to move left and right and further drive the two fork frames to.
2. A large lift truck for a container as set forth in claim 1 wherein: every group guiding axle includes at least a set of guide unit, guide unit includes the fixing base that two intervals set up and both ends respectively with two fixing base fixed connection's fixed axle.
3. A large lift truck for a container as set forth in claim 2 wherein: each group of guide shafts comprises two groups of guide units, and the two groups of guide units are respectively arranged on the upper part and the lower part of the left part or the right part of the front surface of the rotating frame in parallel.
4. A large lift truck for a container as set forth in claim 3 wherein: and one surface of each fork frame, which faces the rotating frame, is provided with a shaft sleeve matched with the two groups of guide units, and the two fork frames are respectively sleeved on the fixed shafts of the two groups of guide units in a sliding manner through the shaft sleeves.
5. A large lift truck for a container as set forth in claim 1 wherein: the lateral movement driving device is a cylinder or an oil cylinder.
6. A large lift truck for a container as set forth in claim 1 wherein: the swing drive includes at least one swing motor.
7. A large lift truck for a container as claimed in claim 6 wherein: the rotary driving device comprises two rotary motors, output shafts of the two rotary motors are connected and drive the inner ring of the rotary support, and the output shafts of the two rotary motors are distributed in parallel and in the same direction to drive the inner ring of the rotary support to rotate together.
8. A large lift truck for a container as claimed in claim 6 wherein: the rotary driving device comprises three rotary motors, output shafts of the three rotary motors are connected with and drive the inner ring of the rotary support, and the output shafts of the three rotary motors are distributed in the same direction in a regular triangle mode to drive the inner ring of the rotary support to rotate together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010554119.9A CN111606255A (en) | 2020-06-17 | 2020-06-17 | Large-scale loading and unloading vehicle for container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010554119.9A CN111606255A (en) | 2020-06-17 | 2020-06-17 | Large-scale loading and unloading vehicle for container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111606255A true CN111606255A (en) | 2020-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010554119.9A Pending CN111606255A (en) | 2020-06-17 | 2020-06-17 | Large-scale loading and unloading vehicle for container |
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| Country | Link |
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| CN (1) | CN111606255A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112573436A (en) * | 2020-11-26 | 2021-03-30 | 内蒙古柠植源生物科技有限公司 | Rotary fork forklift |
| CN112645249A (en) * | 2020-12-16 | 2021-04-13 | 安徽宇锋智慧物联科技有限公司 | Stacking type AGV forklift |
| CN113896140A (en) * | 2021-09-30 | 2022-01-07 | 龙合智能装备制造有限公司 | Distance adjusting fork with cylinder body driving fork seat to move |
| CN116040533A (en) * | 2023-03-30 | 2023-05-02 | 山东力达智能车辆产业技术研究院有限公司 | Lifting device for expanding car window body side |
-
2020
- 2020-06-17 CN CN202010554119.9A patent/CN111606255A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112573436A (en) * | 2020-11-26 | 2021-03-30 | 内蒙古柠植源生物科技有限公司 | Rotary fork forklift |
| CN112645249A (en) * | 2020-12-16 | 2021-04-13 | 安徽宇锋智慧物联科技有限公司 | Stacking type AGV forklift |
| CN113896140A (en) * | 2021-09-30 | 2022-01-07 | 龙合智能装备制造有限公司 | Distance adjusting fork with cylinder body driving fork seat to move |
| CN116040533A (en) * | 2023-03-30 | 2023-05-02 | 山东力达智能车辆产业技术研究院有限公司 | Lifting device for expanding car window body side |
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