CN107499394A - Compartment baffle power assisting device and automobile bodies - Google Patents
Compartment baffle power assisting device and automobile bodies Download PDFInfo
- Publication number
- CN107499394A CN107499394A CN201710700897.2A CN201710700897A CN107499394A CN 107499394 A CN107499394 A CN 107499394A CN 201710700897 A CN201710700897 A CN 201710700897A CN 107499394 A CN107499394 A CN 107499394A
- Authority
- CN
- China
- Prior art keywords
- compartment baffle
- compartment
- lateral wall
- baffle
- railroad car
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000872 buffer Substances 0.000 claims description 28
- 238000013016 damping Methods 0.000 claims description 27
- 230000005489 elastic deformation Effects 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims 3
- 238000005381 potential energy Methods 0.000 abstract description 9
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/02—Platforms; Open load compartments
- B62D33/023—Sideboard or tailgate structures
- B62D33/027—Sideboard or tailgate structures movable
- B62D33/03—Sideboard or tailgate structures movable by swinging down
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The present invention provides a kind of compartment baffle power assisting device and automobile bodies, for connecting railroad car lateral wall and compartment baffle, including：Sliding block, the sliding block are slidably mounted on the compartment baffle；Connecting rod, one end of the connecting rod are rotatablely connected with the railroad car lateral wall, and the other end of the connecting rod is rotatablely connected with the sliding block；Elastic component, one end of the elastic component are fixed on the compartment baffle, and the other end is fixed on the sliding block.The present invention is by setting sliding block, connecting rod and elastic component, when compartment baffle is opened downwards, the linear motion by connecting rod by the convert rotational motion of railroad car lateral wall for sliding block, so that compression elastic piece, the part potential energy that absorbing curtain falls；And when compartment baffle is closed upwards, by discharging the elastic potential energy of elastic component, compensation makes the part lifting force that baffle plate rises, to realize the power-assisted of compartment baffle operation.Therefore, the present invention can provide help for operating personnel's folding compartment baffle.
Description
Technical field
The present invention relates to vehicle structure field, more particularly to a kind of compartment baffle power assisting device and automobile bodies.
Background technology
Lorry is open or semi open model compartment is typically provided with rear baffle tail-gate, to be prevented in transportation in loading space
Article fall.When loading and unloading goods, it is necessary to open rear baffle, need to close rear baffle after the completion of handling.
In the practice process to prior art, it was found by the inventors of the present invention that because lorry rear baffle is generally heavier,
, it is necessary to which human hand applies larger power when opening or closing rear baffle, and during opening, if operating personnel do not have
Enough support forces are provided, rear baffle falls can be too fast and unmanageable.Therefore, the structure of existing boxcar rear baffle is not
Beneficial to human users.
The content of the invention
The present invention provides a kind of compartment baffle power assisting device and automobile bodies, mainly solving the technical problems that being kept off for compartment
The switching action of plate provides power-assisted.
In order to solve the above technical problems, one aspect of the present invention is to provide a kind of compartment baffle power-assisted dress
Put, for connecting railroad car lateral wall and compartment baffle, including：Sliding block, the sliding block are slidably mounted on the compartment baffle；Even
Bar, one end of the connecting rod are rotatablely connected with the railroad car lateral wall, and the other end of the connecting rod is rotatablely connected with the sliding block；Bullet
Property part, one end of the elastic component are fixed on the compartment baffle, and the other end is fixed on the sliding block；Wherein, opening is worked as
During the compartment baffle, the connecting rod rotates with one end of railroad car lateral wall connection relative to the railroad car lateral wall, the company
The other end of bar drives the relatively described compartment baffle of the sliding block to slide, and compresses the elastic component, is kept off when closing the compartment
During plate, the elastic component recovers elastic deformation and promotes the sliding block to be slided on the compartment baffle.
In order to solve the above technical problems, another technical solution used in the present invention is to provide a kind of automobile bodies, bag
Include：Platform floor, railroad car lateral wall, it is arranged at the both sides of the platform floor；Compartment baffle, rotate and connect with the platform floor
Connect；One or two power assisting device, the power assisting device include sliding block, and the sliding block is slidably mounted on the compartment baffle；
Connecting rod, one end that the connecting rod includes are rotatablely connected with the railroad car lateral wall, and the other end of the connecting rod rotates with the sliding block
Connection；Elastic component, one end of the elastic component are fixed on the compartment baffle, and the other end is fixed on the sliding block；Wherein,
When opening the compartment baffle, the connecting rod rotates with one end that the railroad car lateral wall connects relative to the railroad car lateral wall, institute
The other end for stating connecting rod drives the relatively described compartment baffle of the sliding block to slide, and compresses the elastic component, when the closing car
During the baffle plate of railway carriage or compartment, the elastic component recovers elastic deformation and promotes the sliding block to be slided on the compartment baffle；Wherein, when described
The quantity of one or two power assisting device be two when, one of them described power assisting device be arranged on the compartment baffle side and
On the railroad car lateral wall of homonymy, another described power assisting device is arranged on the relative opposite side of the compartment baffle and the side
The railroad car lateral wall on；When one or two power assisting devices quantity is for the moment, the power assisting device may be disposed at institute
State on any side of compartment baffle and the railroad car lateral wall of homonymy.
The present invention is by setting sliding block, connecting rod and elastic component, when compartment baffle is opened downwards, by connecting rod by cabin side
The convert rotational motion of wall is the linear motion of sliding block, and then compression elastic piece, the part potential energy that absorbing curtain falls, to help
The falling motion of buffer compartment baffle plate；And when compartment baffle is closed upwards, by discharging the elastic potential energy of elastic component, compensation makes
The part lifting force that baffle plate rises, to realize the power-assisted of compartment baffle operation.Therefore, the present invention can be operating personnel's folding car
Railway carriage or compartment baffle plate provides help.
Brief description of the drawings
Fig. 1 is the structural representation front view of the embodiment of compartment baffle power assisting device one of the present invention；
Fig. 2 is the close-up schematic view of dotted line part in Fig. 1；
Fig. 3 is structural representation of the compartment baffle power assisting device at another operating position shown in Fig. 1；
Fig. 4 is structural representation of the compartment baffle power assisting device in compartment baffle closure state shown in Fig. 1；
Fig. 5 is the structural representation left view of the compartment baffle power assisting device shown in Fig. 1；
Fig. 6 is the three dimensional structure diagram of the embodiment of automobile bodies one of the present invention；
Fig. 7 is the three dimensional structure diagram of another viewing angle of automobile bodies shown in Fig. 6.
Embodiment
The present invention is described in detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 and Fig. 2 is referred to, compartment baffle power assisting device as depicted in figs. 1 and 2 is applied to open or half-open
On the automobile for putting formula compartment, such as picking-up vehicle.
Compartment baffle power assisting device includes sliding block 11, connecting rod 12 and elastic component 13.Sliding block 11 is slidably mounted on compartment gear
On plate 30, it can be moved along the bearing of trend of the side of compartment baffle 30.Connecting rod 12 can be metallic rod shaped structure, one end of connecting rod 12
It is rotatablely connected with railroad car lateral wall 20, the other end is rotatablely connected with sliding block 11.Alternatively, connecting rod 12 and railroad car lateral wall 20 and sliding block 11
Can be by rotating pin connection.One end of elastic component 13 is fixed on compartment baffle 30, and the other end is fixed on sliding block 11, elasticity
Part 13 can be compression spring.
In certain embodiments, one dismountable slide rail 14, the extension side of slide rail 14 are installed in the side of compartment baffle 30
It is arranged on to the bearing of trend of the corresponding side of compartment baffle 30, and by sliding block 11 in slide rail 14.One end of elastic component 13 is fixed on
On the inwall of the one end of slide rail 14, the other end is fixedly connected with sliding block 11, so that sliding block 11 can move along a straight line and compress along slide rail 14
Elastic component 13 is promoted along counter motion by elastic component 13., can also be by compartment baffle in other embodiment
30 side fluting, and the mode that sliding block 11 is arranged in groove realizes being slidably installed for sliding block 11 and compartment baffle 30.
When compartment baffle 30 is in closure state, i.e., when compartment baffle 30 is vertical, as shown in figure 4, elastic component 13 can be located
In not stressing or approximate unstressed state, elastic component 13 have initial length.Rotary shaft 31 is compartment baffle 30 with respect to compartment
The axis of main body (not shown) rotary motion, and railroad car lateral wall 20 is fixedly connected with compartment main body, therefore rotary shaft 31 is also considered as
Axis of the compartment baffle 30 with respect to the rotary motion of railroad car lateral wall 20.When compartment baffle 30 is opened downwards, compartment baffle 30 is around rotation
Rotating shaft 31 rotates, and one end that connecting rod 12 connects with railroad car lateral wall 20 rotates relative to railroad car lateral wall 20, and the other end band of connecting rod 12
Movable slider 11 slides on compartment baffle 30, and compression elastic piece 13 so that the mechanical potential part that compartment baffle 30 falls turns
The elastic potential energy of elastic component 13 is turned to, now, elastic component 13 is compressed, length shortens.When compartment baffle 30 is closed upwards, car
Railway carriage or compartment baffle plate 30 rotates around the opposite direction of rotary shaft 31, as shown in figure 3, the length of elastic component 13, discharges elastic potential energy, promotes sliding block
11 slide to opposite direction, and the motion drivening rod 12 of sliding block 11 and compartment baffle 30 rotates, and provide what is moved upwards for baffle plate 30
Energy, the lifting force that compounding practice personnel apply to baffle plate 30 so that baffle plate 30 moves upwards.
Present embodiment is by setting sliding block 11, connecting rod 12 and elastic component 13, when compartment baffle 30 is opened downwards, leads to
Linear motion of the connecting rod 12 by the convert rotational motion of railroad car lateral wall 20 for sliding block 11, and then compression elastic piece 13 are crossed, absorbs car
The part potential energy that railway carriage or compartment baffle plate 30 falls, to help the falling motion of buffer compartment baffle plate 30；And closed upwards in compartment baffle 30
When, by discharging the elastic potential energy of elastic component 13, promote elastic component 13 to be moved to opposite direction, and then make car by the compensation of connecting rod 12
Railway carriage or compartment baffle plate 30 rises required part lifting force, to realize the power-assisted of the lifting operations of compartment baffle 30.Therefore, the present invention can be
Operating personnel's folding compartment baffle 30 provides help.
With continued reference to Fig. 1 and Fig. 2, compartment baffle power assisting device can also include damping buffer unit 15.Damping buffering fills
Put 15 one end to be rotatablely connected with railroad car lateral wall 20, the other end is rotatablely connected with compartment baffle 30, and damping buffer unit 15 is used for
When compartment baffle 30 is opened, the opening speed of buffer compartment baffle plate 30.Damping buffer unit 15 can have certain damping system
Several spring assembly, viscous damper or stretching gas spring etc..When compartment baffle 30 moves, damping buffer unit 15 can carry
For, size opposite to the direction of motion damping force related with movement velocity, and consume kinergety.For example, work as compartment baffle 30
When opening downwards, the mechanical potential of compartment baffle 30 in addition to a part is converted into the elastic potential energy of elastic component 13, some
Buffer unit 15 can be damped to consume, therefore can be with the falling motion of buffer compartment baffle plate 30.
As shown in figure 5, in certain embodiments, damping buffer unit 15a is stretching gas spring, in compartment baffle 30
Damping is provided during opening, and when compartment baffle 30 is closed upwards, stretching gas spring will not produce resistance, therefore will not
Influence the lifting operation of compartment baffle 30.Damping buffer unit 15a includes drawing section 151 and telescopic section 152, draws section 151 1
End is rotatablely connected with railroad car lateral wall 20.The other end for drawing section 151 is fixedly connected with telescopic section 152.Alternatively, drawing section can be with
It is L-type structure or other similar structures, so that telescopic section 152 is after mounting to the segment distance of offset inboard one in compartment.With
During 30 folding of compartment baffle, stagger with connecting rod 12, avoid conflicting.Therefore, when compartment baffle 30 is in vertical, closure state, even
Bar 12 can be received, be hidden in the space that damping buffer unit 15a and railroad car lateral wall 20 are formed, and not interfere with the outer of compartment
See.Telescopic section 152 is stretching gas spring agent structure, can be cylinder-piston arrangement, filled with gas in cylinder, and sets tool
There are check valve and orifice plate, so that telescopic section 152 produces resistance when being stretched, and resistance is not produced in compression.
Fig. 1 and Fig. 3 are refer to, in certain embodiments, compartment baffle power assisting device can also include limit rope 16.It is spacing
16 one end of restricting are arranged at railroad car lateral wall 20, and the other end is arranged at compartment baffle 30.It is opened to downwards up to certain in compartment baffle 30
During position, as shown in fig. 1, limit rope 16 is tightened, so as to limit the maximum open position of compartment baffle 30.And in other situations
Under, such as during the rising of compartment baffle 30, as shown in Figure 3, limit rope 16 is in relaxed state, does not influence compartment baffle
30 motion.Limit rope 16 is the rope-like constructed for having certain pliability, such as metallic cable and rubber rope etc..Alternatively, it is spacing
16 installation site on railroad car lateral wall 20 of restricting is close to the top of railroad car lateral wall 20, so when limit rope 16 is tightened, wherein
Tension force just there is significantly vertical direction component.
The compartment baffle power assisting device of any of the above-described embodiment can be arranged on automobile bodies, such as picking-up vehicle or tool
There is open or semi open model compartment lorry, refer to Fig. 6 and Fig. 7.Automobile bodies shown in Fig. 6 and Fig. 7 include compartment bottom
Plate (not shown), railroad car lateral wall 20, compartment baffle 30 and power assisting device.Railroad car lateral wall 20 is fixedly arranged at platform floor
Both sides, compartment baffle 30 are rotatablely connected with platform floor by rotary shaft 31, therefore, are also equal to compartment baffle 30 and cabin side
Wall 20 is rotatablely connected by rotary shaft 31.Power assisting device includes sliding block 11, connecting rod 12 and elastic component 13.Sliding block 11, the and of connecting rod 12
The structure and working method of elastic component 13 are similar with previous embodiment, will not be repeated here.
Alternatively, when automobile bodies include two power assisting devices, one of power assisting device is arranged on compartment baffle 30
On the railroad car lateral wall 20 of one of side and homonymy, another power assisting device is arranged on the relative opposite side of compartment baffle 30
And on the railroad car lateral wall 20 of the side.By setting power assisting device respectively in the both sides of compartment baffle 30, compartment baffle 30 can be made
The stress of both sides is more balanced, improves power-assisted effect.
Alternatively, when automobile bodies only set a power assisting device, power assisting device may be disposed at appointing for compartment baffle 30
On the railroad car lateral wall 20 of meaning side and homonymy.For this embodiment compared with setting two power assisting devices, structure is simpler, and
Space-consuming is smaller.
In certain embodiments, the power assisting device on automobile bodies may include slide rail 14, be arranged at the side of compartment baffle 30
Side, and bearing of trend is identical with the bearing of trend of the side of compartment baffle 30.The effect of slide rail 14 is similar with previous embodiment,
This is repeated no more.
In certain embodiments, automobile bodies also include damping buffer unit 15.Similarly, when two damping bufferings of setting
During device 15, one of damping buffer unit 15 is arranged on the railroad car lateral wall 20 of the side of compartment baffle 30 and homonymy, separately
One damping buffer unit 15 is arranged on the relative opposite side of compartment baffle 30 and the railroad car lateral wall 20 of the side；When only
When setting a damping buffer unit 15, damping buffer unit 15 may be disposed at any side and the homonymy of compartment baffle 30
On railroad car lateral wall 20.
In certain embodiments, automobile bodies also include limit rope 16.Similarly, when setting two limit ropes 16, its
In a limit rope 16 be arranged on the railroad car lateral wall 20 of the side of compartment baffle 30 and homonymy, another limit rope 16 is arranged on
On the relative opposite side of compartment baffle 30 and the railroad car lateral wall 20 of the side；It is spacing when only setting a limit rope 16
Rope 16 may be disposed on any side of compartment baffle 30 and the railroad car lateral wall 20 of homonymy.
Embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this
The equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, it is included within the scope of the present invention.
Claims (10)
- A kind of 1. compartment baffle power assisting device, for connecting railroad car lateral wall and compartment baffle, it is characterised in that including：Sliding block, the sliding block are slidably mounted on the compartment baffle；Connecting rod, one end of the connecting rod are rotatablely connected with the railroad car lateral wall, and the other end of the connecting rod rotates with the sliding block Connection；Elastic component, one end of the elastic component are fixed on the compartment baffle, and the other end is fixed on the sliding block；Wherein, when opening the compartment baffle, the compartment relative with one end of railroad car lateral wall connection of the connecting rod Side wall rotates, and the other end of the connecting rod drives the relatively described compartment baffle of the sliding block to slide, and compresses the elastic component, when When closing the compartment baffle, the elastic component recovers elastic deformation and promotes the sliding block to be slided on the compartment baffle.
- 2. power assisting device as claimed in claim 1, it is characterised in that be also arranged on the compartment including slide rail, the slide rail On baffle plate, the sliding block is slidably mounted in the slide rail, and the elastic component is fixed on the inwall of described slide rail one end.
- 3. power assisting device as claimed in claim 2, it is characterised in that the slide rail is arranged on the side of the compartment baffle, And the bearing of trend of the slide rail is identical with the bearing of trend of the compartment baffle side, the connecting rod is connected to the cabin side The inner side of wall.
- 4. the power assisting device as described in claim any one of 1-3, it is characterised in that also including damping buffer unit, the resistance Buddhist nun's buffer unit one end is rotatablely connected with the railroad car lateral wall, and the other end is rotatablely connected with the compartment baffle, and the damping is slow Flushing device is used for when the compartment baffle is opened, and buffers the opening speed of the compartment baffle.
- 5. power assisting device as claimed in claim 4, it is characterised in that：The damping buffer unit is stretching gas spring.
- 6. power assisting device as claimed in claim 1, it is characterised in that be also arranged at including limit rope, described limit rope one end The railroad car lateral wall, the other end are arranged at the compartment baffle, and the maximum that the limit rope is used to limit the compartment baffle is beaten Open position.
- A kind of 7. automobile bodies, it is characterised in that including：Platform floor,Railroad car lateral wall, it is arranged at the both sides of the platform floor；Compartment baffle, it is rotatablely connected with the platform floor；Power assisting device, the power assisting device include sliding block, and the sliding block is slidably mounted on the compartment baffle；Connecting rod, it is described One end of connecting rod is rotatablely connected with the railroad car lateral wall, and the other end of the connecting rod is rotatablely connected with the sliding block；Elastic component, institute The one end for stating elastic component is fixed on the compartment baffle, and the other end is fixed on the sliding block；Wherein, when the opening compartment During baffle plate, the connecting rod rotates with one end that the railroad car lateral wall connects relative to the railroad car lateral wall, the other end of the connecting rod Drive the sliding block to be slided in relatively described compartment baffle, and compress the elastic component, it is described when closing the compartment baffle Elastic component recovers elastic deformation and promotes the sliding block to be slided on the compartment baffle；Wherein, when the quantity of the power assisting device is two, one of them described power assisting device is arranged on the compartment baffle one On the railroad car lateral wall of side and homonymy, another described power assisting device be arranged on the relative opposite side of the compartment baffle with And on the railroad car lateral wall of the side；When the quantity of the power assisting device is for the moment, the power assisting device may be disposed at the car On any side of railway carriage or compartment baffle plate and the railroad car lateral wall of homonymy.
- 8. automobile bodies as claimed in claim 7, it is characterised in that be also arranged on the compartment including slide rail, the slide rail The side of baffle plate, and the bearing of trend of the slide rail is identical with the bearing of trend of the compartment baffle side；The sliding block slides In the slide rail, the elastic component is fixed on the inwall of described slide rail one end；The connecting rod is connected to the compartment The inner side of side wall.
- 9. the automobile bodies as described in any one of claim 7 or 8, it is characterised in that also including damping buffer unit, the resistance Buddhist nun's buffer unit one end is rotatablely connected with the railroad car lateral wall, and the other end is rotatablely connected with the compartment baffle, and the damping is slow Flushing device is used for when the compartment baffle is opened, and buffers the opening speed of the compartment baffle；Wherein, when the quantity of the damping buffer unit is two, one of them described damping buffer unit is arranged on the car On the railroad car lateral wall of railway carriage or compartment baffle plate side and homonymy, another described damping buffer unit is arranged on the compartment baffle phase To opposite side and the side the railroad car lateral wall on；When the quantity of the damping buffer unit is for the moment, the damping is slow Flushing device may be disposed on any side of the compartment baffle and the railroad car lateral wall of homonymy.
- 10. automobile bodies as claimed in claim 9, it is characterised in that also including limit rope, limit rope one end is arranged at described Railroad car lateral wall, the other end are arranged at the compartment baffle, and the limit rope is used for the maximum open position for limiting the compartment baffle PutWherein, when the limit rope quantity be two when, one of them described limit rope be arranged on the compartment baffle side with And on the railroad car lateral wall of homonymy, another described limit rope is arranged on the relative opposite side of the compartment baffle and the side The railroad car lateral wall on；When the quantity of the limit rope is for the moment, the limit rope may be disposed at appointing for the compartment baffle On the railroad car lateral wall of meaning side and homonymy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700897.2A CN107499394B (en) | 2017-08-15 | 2017-08-15 | Carriage baffle booster unit and car carriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700897.2A CN107499394B (en) | 2017-08-15 | 2017-08-15 | Carriage baffle booster unit and car carriage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107499394A true CN107499394A (en) | 2017-12-22 |
| CN107499394B CN107499394B (en) | 2024-02-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710700897.2A Active CN107499394B (en) | 2017-08-15 | 2017-08-15 | Carriage baffle booster unit and car carriage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107499394B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103797A (en) * | 2019-06-10 | 2019-08-09 | 临工集团济南重机有限公司 | A kind of rear baffle active open-type loading space and the quarry tipper using the loading space |
| CN114013365A (en) * | 2021-11-29 | 2022-02-08 | 湖南武陵机械制造有限公司 | Draw arm formula is from loading and unloading goods fixed knot structure for device |
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| CN114013365A (en) * | 2021-11-29 | 2022-02-08 | 湖南武陵机械制造有限公司 | Draw arm formula is from loading and unloading goods fixed knot structure for device |
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