CN111608120A - Automatic transport vechicle barrier clearing device - Google Patents
Automatic transport vechicle barrier clearing device Download PDFInfo
- Publication number
- CN111608120A CN111608120A CN202010457267.9A CN202010457267A CN111608120A CN 111608120 A CN111608120 A CN 111608120A CN 202010457267 A CN202010457267 A CN 202010457267A CN 111608120 A CN111608120 A CN 111608120A
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- Prior art keywords
- fixedly connected
- automatic transport
- shaft
- pressure detector
- clearing device
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- 230000004888 barrier function Effects 0.000 title claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 238000007790 scraping Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/02—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt
- E01H1/05—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes
- E01H1/053—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt with driven brushes having vertical axes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/54—Obstruction removers or deflectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F19/00—Wheel guards; Bumpers; Obstruction removers or the like
- B61F19/06—Nets, catchers, or the like for catching obstacles or removing them from the track
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Control Of Conveyors (AREA)
- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
Abstract
The invention discloses an automatic transport vehicle barrier clearing device which comprises a fixed shell, wherein one side of the inner wall of the fixed shell is fixedly connected with a first pressure detector, one side of the first pressure detector, which is far away from the fixed shell, is fixedly connected with a hydraulic push rod, one end of the hydraulic push rod, which is far away from the first pressure detector, is fixedly connected with a fixed seat, the central positions of the top and the bottom of the fixed seat are fixedly connected with first supporting plates, the tops and the bottoms of the two ends of the fixed seat are fixedly connected with second supporting plates, one end of the first supporting plate, which is far away from the fixed seat, is fixedly connected with a transport device, and one end of the transport device, which is far away from the first supporting plate, is fixedly. This automatic transport vechicle barrier clearing device, power is bigger, can promote the great barrier of quality, can avoid tiny barrier to cause the damage to the tire to the device is provided with self-protection system, uses safelyr.
Description
Technical Field
The invention relates to the technical field of obstacle clearing, in particular to an obstacle clearing device of an automatic transport vehicle.
Background
With the progress and development of society, modern control technology is more and more integrated into modern production technology, and unmanned intelligent driving has been widely applied due to many advantages of high efficiency, safety, economy and the like. Correspondingly, in order to ensure safe, reliable and stable operation of the unmanned intelligent vehicle, the operation and maintenance guarantee of the intelligent vehicle is also important.
According to the Chinese patent CN108189864A, the rail scraping device comprises a vehicle body and a rail scraping device installed at the front end of the vehicle body, wherein an induction mechanism is arranged between the rail scraping device and the vehicle body, the rail scraping device is rotatably connected with the vehicle body and is pre-tightened with the vehicle body, when the resistance of an obstacle exceeds the pre-tightening force of the rail scraping device, the rail scraping device rotates relative to the vehicle body and triggers the induction mechanism, the rail surface obstacle is cleared through the rail scraping device, whether the obstacle needs to be manually cleared or not is automatically detected through the induction mechanism, the obstacle is synchronously and accurately detected and cleared, and the working efficiency is improved.
According to the Chinese patent CN109019319A, the invention comprises a clearing structure, a tubular body, a spring, a linkage structure and a supporting structure; the cleaning structure comprises a shovel and a bracket; the tubulose body is transversely laid, and the spring is laid in the tubulose body, and the end of bracket stretches into the tubulose body from the perforation of tubulose body head end, and the one end of butt spring, the other end of spring are fixed with the tubulose body, through the barrier on the shovel automatic clear track face, have reduced the cost of labor, have guaranteed the driving safety that the track hung.
However, in the actual use process, when the weight of the object on the road surface is large, the mechanical arm of the clearing device has limited strength, the obstacle cannot be removed sufficiently, when the obstacle cannot be removed, other devices need to be operated manually, the use is inconvenient, and when the obstacle with small volume, such as a nail or other sharp metal objects, exists on the road surface, the tire of the transport vehicle can be damaged.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an automatic transport vehicle obstacle clearing device, which solves the problems that in the actual use process, when the weight of an object on a road surface is large, the mechanical arm strength of the clearing device is limited, the obstacle cannot be fully removed, when the obstacle cannot be removed, other devices are required to be manually operated to remove the obstacle, the use is inconvenient, and when the obstacle with small volume, such as a nail or other sharp metal objects, exists on the road surface, the tire of the transport vehicle is damaged.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: an automatic transport vehicle obstacle clearing device comprises a fixed shell, wherein one side of the inner wall of the fixed shell is fixedly connected with a first pressure detector, one side of the first pressure detector, which is far away from the fixed shell, is fixedly connected with a hydraulic push rod, one end of the hydraulic push rod, which is far away from the first pressure detector, is fixedly connected with a fixed seat, the top and bottom central positions of the fixed seat are fixedly connected with a first supporting plate, the top and bottom of the two ends of the fixed seat are fixedly connected with a second supporting plate, one end of the first supporting plate, which is far away from the fixed seat, is fixedly connected with a transport device, one end of the transport device, which is far away from the first supporting plate, is fixedly connected with the second supporting plate, one side of the first supporting plate, which is far away from the transport device, is fixedly connected with a reinforcing plate, one end of the reinforcing plate, the utility model discloses a device, including fixing base, apex cone plate, reinforcing plate, first pressure detector, second pressure detector, fixing shell inner wall both sides bottom, the equal fixedly connected with in one side fixedly connected with second pressure detector that the apex cone plate is close to the reinforcing plate, second pressure detector's test probe runs through the apex cone plate and extends to the apex cone plate and keeps away from one side of reinforcing plate, the equal fixedly connected with in fixing shell inner wall both sides bottom supports the draw runner, support draw runner top and fixing base bottom contact and sliding connection, when there is the barrier in device the place ahead, accessible conveyer pushes away.
Preferably, the first backup pad top fixedly connected with biax motor of fixing base bottom, the equal fixedly connected with worm of drive shaft at biax motor both ends, the one end meshing that biax motor was kept away from to the worm has the worm wheel, the worm wheel side is rotated and is connected with the rotation support, the one end and the fixing base fixed connection that the worm wheel was kept away from to the rotation support, worm wheel one side fixedly connected with connecting axle, the one end that the worm wheel was kept away from to the connecting axle runs through rotation support and fixedly connected with cleaning disc, and when the device was operated, biax motor passed through the turbine worm device and drives cleaning disc rotation, can clear away the tiny barrier on the road surface in tire the place ahead when cleaning disc pivoted, avoids tiny barrier to cause the damage.
Preferably, the worm is fixed on the fixing seat through a second support, and the worm is rotatably connected with the second support.
Preferably, the conveyer includes the drive shaft, the drive shaft both ends all run through and the swivelling joint has the backup pad, the one end that the drive shaft was kept away from to the backup pad is rotated and is connected with the driven shaft, the part that the backup pad inner wall is located between drive shaft and the driven shaft rotates and is connected with the back shaft, drive shaft and driven shaft outside all overlap there is the transportation area, the backup pad is close to the one end side fixedly connected with driving motor of drive shaft, driving motor's drive shaft run through the backup pad and with drive shaft fixed connection, when first pressure detector detected pressure, the transmission signal of telecommunication gives control chip, and control chip control driving motor opens, and driving motor drives the drive shaft and rotates, and the drive shaft drives transportation area and rotates, and transportation area pivoted simultaneously drive rather than the.
Preferably, the side face of the driving shaft is provided with a latch, and the inner wall of the conveying belt is provided with a clamping groove matched with the latch on the driving shaft, so that the driving shaft can drive the conveying belt to rotate conveniently.
Preferably, fixedly connected with control chip below the first backup pad at fixing base top, the output of first pressure detector and second pressure detector all with control chip's input electric connection, accessible control chip control hydraulic push rod shrink when first pressure sensor detects thrust too big, with inside the device income set casing, avoid the too big damage of device atress.
Preferably, the control end of the double-shaft motor is electrically connected with the output end of the control chip.
Preferably, the control end of the driving motor is electrically connected with the output end of the control chip.
Preferably, the control end of the hydraulic push rod is electrically connected with the output end of the control chip.
Preferably, one side and the top of the fixed shell are both provided with installation clamping grooves.
(III) advantageous effects
The invention provides an obstacle clearing device of an automatic transport vehicle. The method has the following beneficial effects:
(1) this automatic transport vechicle barrier clearing device promotes conveyer to both sides through the frictional force between conveyer and the barrier, makes to promote the barrier more laborsaving to the power of accessible transport vechicle self promotes the barrier, and power is bigger, can promote the great barrier of quality.
(2) When the automatic transport vehicle barrier clearing device operates, the double-shaft motor drives the cleaning disc to rotate through the worm gear device, fine barriers on the road surface in front of the tire can be cleared while the cleaning disc rotates, and the tire is prevented from being damaged by the fine barriers.
(3) This automatic transport vechicle barrier clearing device, when first pressure detector detected barrier pressure great, can transmit the signal of telecommunication and give control chip, inside control chip control hydraulic push rod shrink, hydraulic push rod can drive the device income set casing, avoided promoting by force the harm device, reached protection device's purpose.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic front view of the present invention;
FIG. 4 is a schematic bottom view of the present invention;
FIG. 5 is a schematic view of the structure of the transportation device of the present invention;
FIG. 6 is a schematic view of the cleaning device of the present invention.
In the figure: 1. the device comprises a fixed shell, 2, a first pressure detector, 3, a hydraulic push rod, 4, a fixed seat, 5, a first supporting plate, 6, a second supporting plate, 7, a conveying device, 71, a driving shaft, 72, a supporting plate, 73, a driven shaft, 74, a supporting shaft, 75, a conveying belt, 76, a driving motor, 8, a reinforcing plate, 9, a tip cone plate, 10, a second pressure detector, 11, a supporting slide bar, 12, a double-shaft motor, 13, a worm, 14, a worm wheel, 15, a rotating support, 16, a connecting shaft, 17, a second support, 18, a control chip, 19, an installation clamping groove, 20 and a cleaning disc.
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.
The first embodiment is as follows:
referring to fig. 1-4, the present invention provides a technical solution: an automatic transport vehicle obstacle clearing device comprises a fixed shell 1, one side of the inner wall of the fixed shell 1 is fixedly connected with a first pressure detector 2, one side of the first pressure detector 2 far away from the fixed shell 1 is fixedly connected with a hydraulic push rod 3, one end of the hydraulic push rod 3 far away from the first pressure detector 2 is fixedly connected with a fixed seat 4, the top and bottom central positions of the fixed seat 4 are fixedly connected with a first supporting plate 5, the top and bottom of the two ends of the fixed seat 4 are fixedly connected with a second supporting plate 6, one end of the first supporting plate 5 far away from the fixed seat 4 is fixedly connected with a transport device 7, one end of the transport device 7 far away from the first supporting plate 5 is fixedly connected with the second supporting plate 6, one side of the first supporting plate 5 far away from the transport device 7 is fixedly connected with a reinforcing plate 8, one end of the reinforcing plate 8 far, the transportation device 7 comprises a driving shaft 71, two ends of the driving shaft 71 are both penetrated and rotatably connected with supporting plates 72, one end of each supporting plate 72, which is far away from the driving shaft 71, is rotatably connected with a driven shaft 73, a supporting shaft 74 is rotatably connected to a part, which is positioned between the driving shaft 71 and the driven shaft 73, of the inner wall of each supporting plate 72, conveying belts 75 are sleeved outside the driving shaft 71 and the driven shaft 73, a driving motor 76 is fixedly connected to the side surface of one end, which is close to the driving shaft 71, of each supporting plate 72, the driving shaft of the driving motor 76 penetrates through the supporting plates 72 and is fixedly connected with the driving shaft 71, a control chip 17 is fixedly connected below a first supporting plate 5 on the top of a fixed seat 4, the output ends of a first pressure detector 2 and a second pressure detector 10 are both electrically connected with the input end of the control, when the device is used, the control chip 18 controls the hydraulic push rod to be opened to push the device out of the fixed shell 1, when the first pressure detector 2 detects pressure, an electric signal is sent to the control chip 18, the control chip 18 controls the driving motor 76 to be opened, the driving motor 76 drives the driving shaft 71 to rotate, the driving shaft 71 drives the conveying belt 75 to rotate, the conveying belt 75 rotates and pushes the front obstacle to two sides through the pushing force of the transport vehicle, when the first pressure detector 2 detects that the pressure is too high, an electric signal is sent to the control chip 18, the control chip 18 controls the hydraulic push rod 3 to contract, and the hydraulic push rod 3 drives the device to be retracted into the fixed shell 1.
The upper portion of the first supporting plate 5 at the bottom of the fixing seat 4 is fixedly connected with a double-shaft motor 12, the driving shafts at two ends of the double-shaft motor 12 are fixedly connected with worms 13, one ends, far away from the double-shaft motor 12, of the worms 13 are meshed with worm wheels 14, the side faces of the worm wheels 14 are rotatably connected with a rotating support 15, one ends, far away from the worm wheels 14, of the rotating support 15 are fixedly connected with the fixing seat 4, one sides of the worm wheels 14 are fixedly connected with a connecting shaft 16, one ends, far away from the worm wheels 14, of the connecting shaft 16 penetrate through the rotating support 15 and the fixedly connected with cleaning discs 16, the control chip 18 controls the double-shaft motor 12 to rotate, the double-shaft motor 12 drives the worms 13 to rotate, the worms 13 drive the worm wheels.
When the device is used, the control chip 18 controls the hydraulic push rod to be opened to push the device out of the fixed shell 1, meanwhile, the control chip 18 controls the double-shaft motor 12 to rotate, the double-shaft motor 12 drives the worm 13 to rotate, the worm 13 drives the worm wheel 14 to rotate, the worm wheel 14 drives the cleaning disc 20 to rotate, when the first pressure detector 2 detects pressure, an electric signal is sent to the control chip 18, the control chip 18 controls the driving motor 76 to be opened, the driving motor 76 drives the driving shaft 71 to rotate, the driving shaft 71 drives the conveyer belt 75 to rotate, when the conveyer belt 75 rotates, the obstacle in front can be pushed to two sides by the pushing force of the conveyer, when the first pressure detector 2 detects that the pressure is too high, the electric signal is sent to the control chip 18, the control chip 18 controls the hydraulic push rod 3 to contract, and the hydraulic push rod 3 drives.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an automatic transport vechicle barrier clearing device, includes set casing (1), its characterized in that: the device is characterized in that a first pressure detector (2) is fixedly connected to one side of the inner wall of the fixed shell (1), a hydraulic push rod (3) is fixedly connected to one side, away from the fixed shell (1), of the first pressure detector (2), a fixed seat (4) is fixedly connected to one end, away from the first pressure detector (2), of the hydraulic push rod (3), a first supporting plate (5) is fixedly connected to the top and bottom central positions of the fixed seat (4), a second supporting plate (6) is fixedly connected to the top and bottom of the two ends of the fixed seat (4), a transporting device (7) is fixedly connected to one end, away from the fixed seat (4), of the first supporting plate (5), of the transporting device (7), is fixedly connected with the second supporting plate (6), a reinforcing plate (8) is fixedly connected to one side, away from the transporting device (7), of the first supporting plate (5), one end and second backup pad (6) fixed connection of first backup pad (5) are kept away from in reinforcing plate (8), one side fixedly connected with top cone plate (9) of fixing base (4) are kept away from in reinforcing plate (8), one side fixedly connected with second pressure detector (10) that top cone plate (9) are close to reinforcing plate (8), the test probe of second pressure detector (10) runs through top cone plate (9) and extends to one side that reinforcing plate (8) were kept away from in top cone plate (9), the equal fixedly connected with in set casing (1) inner wall both sides bottom supports draw runner (11), support draw runner (11) top and fixing base (4) bottom contact and sliding connection.
2. The automatic transport vehicle obstacle clearing device according to claim 1, characterized in that: first backup pad (5) top fixedly connected with double-shaft motor (12) of fixing base (4) bottom, the equal fixedly connected with worm (13) of drive shaft at double-shaft motor (12) both ends, the one end meshing that double-shaft motor (12) were kept away from in worm (13) has worm wheel (14), worm wheel (14) side is rotated and is connected with and is rotated support (15), rotate support (15) and keep away from the one end and fixing base (4) fixed connection of worm wheel (14), worm wheel (14) one side fixedly connected with connecting axle (16), the one end that worm wheel (14) were kept away from in connecting axle (16) runs through and rotates support (15) and fixedly connected with and clears away from dish (20).
3. The automatic transport vehicle obstacle clearing device according to claim 2, characterized in that: the worm (13) is fixed on the fixed seat (4) through the second support (17), and the worm (13) is rotatably connected with the second support (17).
4. The automatic transport vehicle obstacle clearing device according to claim 1, characterized in that: conveyer (7) include drive shaft (71), drive shaft (71) both ends all run through and swivelling joint has backup pad (72), one end rotation that drive shaft (71) was kept away from in backup pad (72) is connected with driven shaft (73), the part rotation that backup pad (72) inner wall was located between drive shaft (71) and driven shaft (73) is connected with back shaft (74), drive shaft (71) and driven shaft (73) outside all overlap has transportation area (75), one end side fixedly connected with driving motor (76) that backup pad (72) are close to drive shaft (71), the drive shaft of driving motor (76) run through backup pad (72) and with drive shaft (71) fixed connection.
5. The automatic transport vehicle obstacle clearing device according to claim 2, characterized in that: the side of the driving shaft (71) is provided with a latch, and the inner wall of the conveying belt (75) is provided with a clamping groove matched with the latch on the driving shaft (71).
6. The automatic transport vehicle obstacle clearing device according to claim 1, characterized in that: the utility model discloses a pressure detector, including fixing base (4), first backup pad (5) below fixedly connected with control chip (18) at fixing base (4) top, the output of first pressure detector (2) and second pressure detector (10) all with control chip (18) input electric connection.
7. The automatic transport vehicle obstacle clearing device according to claim 2, characterized in that: and the control end of the double-shaft motor (12) is electrically connected with the output end of the control chip (18).
8. The automatic transport vehicle obstacle clearing device according to claim 4, wherein: and the control end of the driving motor (76) is electrically connected with the output end of the control chip (18).
9. The automatic transport vehicle obstacle clearing device according to claim 1, characterized in that: the control end of the hydraulic push rod (3) is electrically connected with the output end of the control chip (18).
10. The automatic transport vehicle obstacle clearing device according to claim 2, characterized in that: and one side and the top of the fixed shell (1) are provided with installation clamping grooves (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010457267.9A CN111608120B (en) | 2020-05-26 | 2020-05-26 | Automatic transport vechicle barrier clearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010457267.9A CN111608120B (en) | 2020-05-26 | 2020-05-26 | Automatic transport vechicle barrier clearing device |
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| CN111608120A true CN111608120A (en) | 2020-09-01 |
| CN111608120B CN111608120B (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010457267.9A Active CN111608120B (en) | 2020-05-26 | 2020-05-26 | Automatic transport vechicle barrier clearing device |
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| CN (1) | CN111608120B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112937731A (en) * | 2021-03-15 | 2021-06-11 | 深圳供电局有限公司 | A carrier of removing obstacles for automizing warehouse |
| CN113787981A (en) * | 2021-10-13 | 2021-12-14 | 杭州小手宇宙信息咨询有限公司 | Obstacle clearing device for competition robot |
| CN114457745A (en) * | 2022-03-11 | 2022-05-10 | 景斌 | Obstacle removing device for underground mine car track |
| CN114475660A (en) * | 2022-02-28 | 2022-05-13 | 苏州挚途科技有限公司 | Anti-collision method and device for automatically driving vehicle and electronic equipment |
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| JPH09104301A (en) * | 1995-08-03 | 1997-04-22 | Ichu So | Front impact force decomposing device for automobile |
| CN2411933Y (en) * | 1999-10-14 | 2000-12-27 | 王家信 | Pilot for vehicle |
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| CN114457745B (en) * | 2022-03-11 | 2023-11-03 | 景斌 | Underground mine car track obstacle removing device |
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| Publication number | Publication date |
|---|---|
| CN111608120B (en) | 2021-10-22 |
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