CN113788438B - Fork truck braking auxiliary wheel - Google Patents
Fork truck braking auxiliary wheel Download PDFInfo
- Publication number
- CN113788438B CN113788438B CN202111128419.1A CN202111128419A CN113788438B CN 113788438 B CN113788438 B CN 113788438B CN 202111128419 A CN202111128419 A CN 202111128419A CN 113788438 B CN113788438 B CN 113788438B
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- Prior art keywords
- auxiliary wheel
- steering
- knuckle
- forklift
- connecting plate
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- 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.)
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- 230000003068 static effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 7
- 230000008093 supporting effect Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- B66F9/07572—Propulsion arrangements
-
- 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
- B66F9/07509—Braking
Landscapes
- 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)
- Braking Arrangements (AREA)
Abstract
The application discloses a forklift braking auxiliary wheel, which comprises an auxiliary wheel and a connecting component for connecting the auxiliary wheel with a connecting plate, wherein the connecting component comprises a steering shaft arranged on the connecting plate, the auxiliary wheel is rotated and arranged on the steering shaft, and a brake for braking the rotation of the auxiliary wheel is arranged between the steering shaft and the auxiliary wheel. When the forklift is braked, the brake is started to brake the auxiliary wheels, and the auxiliary wheels provide auxiliary support for the forklift at the moment, and simultaneously provide braking torque for the forklift through the steering shaft and the connecting plate, so that the stability of the forklift when the forklift shovels and takes heavy loads is further ensured.
Description
Technical Field
The invention relates to the technical field of forklift accessories, in particular to a forklift braking auxiliary wheel.
Background
The forklift is generally used for loading and unloading, stacking or carrying tray goods, has the advantages of high operation efficiency, convenient operation, flexibility and the like, and is widely applied to the field of logistics. In the prior art, in order to prevent the fork truck from turning on one's side, often install the auxiliary wheel on the fork truck in order to provide auxiliary support, stability when improving the fork truck operation.
At present, the Chinese patent of invention with publication number CN104827828B discloses an auxiliary wheel for a forklift, which comprises a frame and an auxiliary wheel bracket, wherein a rotating wheel is rotationally connected with the auxiliary wheel bracket through a rotating shaft, and the bearing capacity and the mounting height of the auxiliary wheel are adjusted by adopting butterfly spring pieces in a butterfly spring group, so that the forklift can stably run. However, the auxiliary wheel in the scheme adopts a universal wheel without a braking function, and is suitable for a forklift with medium and low loads; for a heavy-duty forklift, the auxiliary wheel not only needs to be started to have the function of auxiliary support, but also needs to provide braking torque, so that the stability of the forklift when the forklift shovels heavy-duty goods is ensured.
Disclosure of Invention
In order to solve the technical problems in the background art, the application provides a forklift braking auxiliary wheel.
The application provides a forklift braking auxiliary wheel, which comprises an auxiliary wheel and a connecting assembly used for connecting the auxiliary wheel with a connecting plate, wherein the connecting assembly comprises a steering shaft arranged on the connecting plate, the auxiliary wheel is rotated and arranged on the steering shaft, and a brake used for braking the rotation of the auxiliary wheel is arranged between the steering shaft and the auxiliary wheel.
By adopting the technical scheme, when the forklift walks, the connecting plate drives the auxiliary wheels to move through the steering shaft, and the auxiliary wheels rotate around the steering shaft at the same time, so that auxiliary support is provided for the forklift; when the forklift brakes, the brake is started to brake the auxiliary wheels, and when the auxiliary wheels provide auxiliary support for the forklift, braking torque is provided for the forklift through the steering shaft and the connecting plate, so that the stability of the forklift when the forklift shovels heavy-load cargoes are further guaranteed.
Preferably, the auxiliary wheel comprises a rim and a steering wheel which are pressed into a whole, the rim is rotatably arranged on a steering shaft, and a stator and a rotor of the brake are respectively and fixedly arranged at corresponding positions of the steering shaft and the rim.
By adopting the technical scheme, when the brake is started, the stator and the rotor of the brake are attracted, so that the rim and the steering shaft are relatively fixed, the auxiliary wheel is locked, and the aim of auxiliary braking is fulfilled.
Preferably, the connecting assembly further comprises a knuckle rotatably mounted on the connecting plate, and the auxiliary wheel is fixedly mounted on the knuckle through a pin shaft.
Through adopting above-mentioned technical scheme, because knuckle and connecting plate rotate to be connected, when fork truck turns to, auxiliary wheel rotates around its central axis, drives the knuckle simultaneously and rotates, and the auxiliary wheel revolutes the axle center of knuckle and rotates this moment to this provides auxiliary support for the fork truck that is turning to fork truck, has ensured the flexibility and the stability that fork truck turned to.
Preferably, the auxiliary wheels are provided with two groups, the two groups of auxiliary wheels are respectively positioned at two sides of the steering knuckle, and the brake is correspondingly provided with two synchronous opening and closing wheels.
By adopting the technical scheme, the two groups of auxiliary wheels are respectively positioned at two sides of the steering knuckle, so that stable support is provided for the connecting assembly, the stability of the connection of the auxiliary wheels and the connecting plate is further improved, and the auxiliary support and braking effect of the auxiliary wheels are ensured; when the forklift brakes, the two brakes are synchronously started, so that the two auxiliary wheels are synchronously braked, and the braking effect of the auxiliary wheels and the stability during braking are effectively enhanced.
Preferably, the connection assembly further includes a slip ring mounted at a tip of the knuckle, and the wire harness of the brake is connected with a rotating portion of the slip ring.
Through adopting above-mentioned technical scheme, the rotating part of sliding ring is connected with the pencil of stopper, and the stationary part is connected with outside control line, and when the auxiliary wheel rotated around the axle center of knuckle, the pencil of stopper rotated along with the knuckle, and the rotating part of sliding ring rotated along with the pencil of stopper this moment, had solved the pencil of stopper effectively and had taken place winding problem, had ensured the steering support effect of auxiliary wheel when fork truck turned to.
Preferably, the inside of the knuckle is hollow, a round hole communicated with the inside of the knuckle is formed in the side wall of the knuckle, and a wire harness of the brake penetrates into the inside of the knuckle through the round hole and then is connected with the rotating part of the slip ring.
Through adopting above-mentioned technical scheme, the pencil of stopper is connected with the rotation part of sliding ring after penetrating the inside of knuckle by the round hole to this is regular in the knuckle with the pencil of auxiliary wheel, has reduced the risk that the pencil exposes the damage by a wide margin, plays good guard action to the pencil of stopper.
Preferably, the connecting assembly further comprises a cover plate fixedly arranged on the static part of the slip ring, the steering knuckle is rotationally connected with the cover plate, and the cover plate is fixedly arranged on the connecting plate through bolts.
By adopting the technical scheme, the steering knuckle is connected with the connecting plate through the cover plate, and the cover plate is connected with the connecting plate through the bolts, so that the steering knuckle is convenient to mount and dismount and is convenient for replacing the auxiliary wheel; and the cover plate arranged realizes stable connection among the slip ring, the steering knuckle and the connecting plate, when the steering knuckle rotates, the static part of the slip ring is fixed on the connecting plate through the cover plate, and the rotating part of the slip ring rotates along with the steering knuckle, so that the effect of preventing the wire harness from winding is ensured.
Preferably, the rim is connected with the pin shaft, the knuckle is connected with the connecting plate through bearings, and tapered bearings are adopted between the knuckle and the connecting plate.
By adopting the technical scheme, the rim is connected with the pin shaft and the knuckle is connected with the connecting plate through the bearing, the bearing plays a role in reducing friction, and the auxiliary wheel and the knuckle can flexibly rotate when the forklift walks and turns, so that the auxiliary supporting effect of the auxiliary wheel is ensured; the tapered bearing is adopted between the steering knuckle and the connecting plate, the tapered bearing provides axial and radial support, friction is reduced, the steering knuckle is effectively prevented from being separated from the connecting plate in the axial direction, and the stability of connection of the steering knuckle and the connecting plate is further improved.
Preferably, the other end of the connecting plate is provided with a driving assembly for driving the forklift to run, the driving assembly comprises a driving motor for driving the forklift to move, a steering unit for driving the forklift to steer and a driving wheel rotatably installed on the connecting plate, the brake is electrically connected with the driving motor through a controller, and the driving motor and the steering unit are both connected with the driving wheel through a gear box.
By adopting the technical scheme, the rotation and revolution of the driving wheel are respectively realized by controlling the driving motor and the steering unit, so that the movement and steering operation of the forklift are realized; when the driving motor is started, the driving motor drives the driving wheel to rotate through the gear box, at the moment, the driving motor controls the brake to separate the stator from the rotor through the controller, the auxiliary wheel is in a rotatable state, and the auxiliary wheel can synchronously walk along with the forklift to carry out auxiliary support, so that the stability of the forklift during walking is improved; when the driving motor is turned off, the forklift stops walking, and at the moment, the driving motor controls the brake to enable the stator and the rotor to be attracted through the controller, so that the auxiliary wheel can be locked and auxiliary braking can be provided for the forklift, the auxiliary wheel and the driving wheel can synchronously move and brake through the arrangement of the controller, the brake is not required to be independently controlled, and the degree of automation is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. When the forklift is braked, the brake is started to brake the auxiliary wheels, and when the auxiliary wheels provide auxiliary support for the forklift, the steering shaft and the connecting plate provide braking moment for the forklift, so that the stability of the forklift when the forklift shovels heavy-load goods is further ensured;
2. when the auxiliary wheel rotates around the axis of the steering knuckle, the wire harness of the brake rotates along with the steering knuckle, and at the moment, the rotating part of the slip ring rotates along with the wire harness of the brake, so that the problem that the wire harness of the brake is wound is effectively solved, and the steering supporting effect of the auxiliary wheel when the forklift steers is ensured;
3. the wire harness of the brake is connected with the rotating part of the slip ring after penetrating into the steering knuckle through the round hole, so that the wire harness of the auxiliary wheel is regulated in the steering knuckle, the risk of exposed damage of the wire harness is greatly reduced, and the wire harness of the brake is well protected.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present application.
Fig. 2 is a side view of the overall structure of an embodiment of the present application.
Fig. 3 is a schematic structural view of an auxiliary wheel according to an embodiment of the present application.
Fig. 4 is a cross-sectional view of an auxiliary wheel in an embodiment of the application.
Fig. 5 is a view in the direction a of fig. 3.
Reference numerals illustrate: 1. an auxiliary wheel; 11. a rim; 12. a steering wheel; 13. a first bearing;
2. A connection assembly; 21. a knuckle; 211. a wire hole; 212. a second bearing;
22. A steering shaft; 221. a pin shaft;
23. A cover plate; 24. a slip ring;
3. a brake; 31. a stator; 32. a rotor; 33. a wire harness;
4. a connecting plate;
5. a drive assembly; 51. a driving motor; 52. a steering unit; 53. a gear box; 54. and (3) driving wheels.
Detailed Description
The application is described in further detail below with reference to fig. 1-5.
The embodiment of the application discloses a forklift braking auxiliary wheel. Referring to fig. 1, the auxiliary wheel for braking a forklift includes an auxiliary wheel 1, a connection assembly 2, a brake 3, and a connection plate 4. The vehicle body is provided with a driving component 5, one end of the connecting plate 4 is fixedly connected with the vehicle body, and the other end is connected with the auxiliary wheel 1.
Referring to fig. 2, the driving assembly 5 includes a driving motor 51, a steering unit 52, a gear box 53, and a driving wheel 54, the driving motor 51, the steering unit 52, and the gear box 53 are fixedly installed on the connection plate 4, the driving wheel 54 is rotatably installed on the connection plate 4, and the driving motor 51 and the steering unit 52 are connected with the driving wheel 54 through the gear box 53. When the driving motor 51 is started, the driving motor 51 drives the driving wheel 54 to rotate through the gear box 53, so that the forklift is driven to move; when the steering unit 52 is started, the steering unit 52 drives the driving wheel 54 to revolve through the gear box 53, so that the forklift is driven to steer.
Referring to fig. 3 and 4, the connection assembly 2 includes a knuckle 21, a steering shaft 22, a cover plate 23, and a slip ring 24. The steering shaft 22 is fixedly mounted on the knuckle 21 through a pin 221, and the steering shaft 22 is perpendicular to the axis of the knuckle 21. As shown in fig. 5, the auxiliary wheel 1 includes a rim 11 and a steering wheel 12 coaxially arranged, and the steering wheel 12 is fitted over the rim 11 and press-fitted into one body. The rim 11 is rotatably mounted on the knuckle 21 by means of a first bearing 13, the auxiliary wheels 1 being provided with two sets of auxiliary wheels 1, one on each side of the knuckle 21.
Referring to fig. 2 and 4, the knuckle 21 is rotatably mounted on the connection plate 4 through the second bearing 212, the slip ring 24 and the cover plate 23 are both disposed at the top end of the knuckle 21, the stationary portion of the slip ring 24 is fixedly connected with the cover plate 23, the knuckle 21 is rotatably connected with the cover plate 23, and the cover plate 23 is fixedly mounted on the connection plate 4 through bolts, thereby realizing connection of the knuckle 21 and the connection plate 4. The second bearing 212 adopts tapered bearings and is provided with two tapered bearings, the tapered bearings provide axial and radial support for the knuckle 21, the friction force between the knuckle 21 and the connecting plate 4 is reduced, the knuckle 21 is effectively prevented from being axially separated from the connecting plate 4, and the stability of connection of the knuckle 21 and the connecting plate is further improved.
Referring to fig. 4, the brake 3 is installed between the auxiliary wheel 1 and the steering shaft 22, and the stator 31 and the rotor 32 of the brake 3 are fixedly installed at corresponding positions on opposite sides of the steering shaft 22 and the rim 11, respectively. When the brake 3 is started, the stator 31 and the rotor 32 of the brake 3 are attracted, so that the rim 11 can be fixed, and further, the auxiliary wheel 1 is braked. The two brakes 3 are arranged corresponding to the auxiliary wheels 1, and the two brakes 3 are synchronously started, so that the two auxiliary wheels 1 can be synchronously braked, and the braking effect is improved.
Referring to fig. 4, the inside of the knuckle 21 is hollow, two circular holes are formed in the side wall of the knuckle 21, and the two circular holes are communicated with the inside of the knuckle 21 and intersect to form a T shape. The wire harness 33 of the brake 3 penetrates into the knuckle 21 through the round hole and is connected with the rotating part of the slip ring 24 upwards, so that the wire harness 33 of the auxiliary wheel 1 is regulated, the wire harness 33 is prevented from being exposed and damaged, and a good protection effect is achieved. The stationary part of the slip ring 24 is connected with an external control circuit, when the forklift turns, the auxiliary wheel 1 rotates and drives the steering knuckle 21 to rotate, at the moment, the wire harness 33 of the brake 3 rotates along with the steering knuckle 21, and the rotating part of the slip ring 24 rotates along with the wire harness 33 of the brake 3, so that the problem that the wire harness 33 of the brake 3 is wound is effectively solved, and the steering supporting effect of the auxiliary wheel 1 when the forklift turns is ensured.
Referring to fig. 2, the brakes 3 are electrically connected to a driving motor 51 through a knuckle 21 and a controller, and control the two brakes 3 to be synchronously turned on and off. When the driving motor 51 is started, the driving motor 51 drives the driving wheel 54 to rotate through the gear box 53, at the moment, the driving motor 51 controls the brake 3 through the controller to separate the stator 31 from the rotor 32, the auxiliary wheel 1 is in a rotatable state, and the auxiliary wheel can synchronously walk along with a forklift to carry out auxiliary support, so that the stability of the forklift during walking is improved; when the driving motor 51 is turned off, the forklift stops walking and is braked, at the moment, the driving motor 51 controls the brake 3 through the controller to enable the stator 31 and the rotor 32 to be attracted, the auxiliary wheel 1 can be locked, the auxiliary wheel 1 provides auxiliary support for the forklift, and simultaneously provides braking torque for the forklift through the steering shaft 22 and the connecting plate 4, so that stability of the forklift when the forklift shovels heavy-load goods are taken is further guaranteed.
The implementation principle of the application is as follows: when the driving motor 51 is started, the driving motor 51 drives the driving wheel 54 to rotate through the gear box 53, at the moment, the driving motor 51 controls the brake 3 through the controller to separate the stator 31 from the rotor 32, the auxiliary wheel 1 is in a rotatable state, and the auxiliary wheel can synchronously walk along with a forklift to carry out auxiliary support, so that the stability of the forklift during walking is improved; when the driving motor 51 is turned off, the forklift stops walking and is braked, at the moment, the driving motor 51 controls the two brakes 3 to be started simultaneously through the controller, so that the stator 31 and the rotor 32 are attracted, at the moment, the two rims 11 are fixed relative to the steering shaft 22, the auxiliary wheel 1 is locked, the auxiliary wheel 1 provides auxiliary support for the forklift, and meanwhile, the steering shaft 22 and the connecting plate 4 provide braking torque for the forklift, so that the stability of the forklift when shoveling heavy-load cargoes is further guaranteed.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides a fork truck braking auxiliary wheel which characterized in that: the steering device comprises an auxiliary wheel (1) and a connecting assembly (2) for connecting the auxiliary wheel (1) with a connecting plate (4), wherein the connecting assembly (2) comprises a steering shaft (22) arranged on the connecting plate (4), the auxiliary wheel (1) is rotatably arranged on the steering shaft (22), and a brake (3) for braking the rotation of the auxiliary wheel (1) is arranged between the steering shaft (22) and the auxiliary wheel (1);
the connecting assembly (2) further comprises a steering knuckle (21) rotatably mounted on the connecting plate (4) and a slip ring (24) mounted at the top end of the steering knuckle (21), and the steering shaft (22) is fixedly mounted on the steering knuckle (21) through a pin shaft (221);
The inside of the steering knuckle (21) is hollow, a round hole communicated with the inside of the steering knuckle (21) is formed in the side wall of the steering knuckle (21), and a wire harness (33) of the brake (3) penetrates into the inside of the steering knuckle (21) from the round hole and then is connected with a rotating part of the slip ring (24).
2. A forklift braking auxiliary wheel according to claim 1, wherein: the auxiliary wheel (1) comprises a rim (11) and a steering wheel (12) which are assembled into a whole in a pressing mode, the rim (11) is rotatably mounted on a steering shaft (22), and a stator (31) and a rotor (32) of the brake (3) are fixedly mounted on corresponding positions of the steering shaft (22) and the rim (11) respectively.
3. A forklift braking auxiliary wheel according to claim 1, wherein: the auxiliary wheels (1) are provided with two groups, the two groups of auxiliary wheels (1) are respectively positioned at two sides of the steering knuckle (21), and the brake (3) is correspondingly provided with two synchronous opening and closing devices.
4. A forklift braking auxiliary wheel according to claim 1, wherein: the connecting assembly (2) further comprises a cover plate (23) fixedly arranged on the static part of the slip ring (24), the steering knuckle (21) is rotationally connected with the cover plate (23), and the cover plate (23) is fixedly arranged on the connecting plate (4) through bolts.
5. A forklift braking auxiliary wheel according to claim 2, wherein: the rim (11) is connected with the pin shaft (221) and the knuckle (21) is connected with the connecting plate (4) through bearings, and tapered bearings are adopted between the knuckle (21) and the connecting plate (4).
6. A forklift braking auxiliary wheel according to claim 1, wherein: the other end of connecting plate (4) is equipped with drive assembly (5) that are used for driving fork truck operation, drive assembly (5) are including being used for driving motor (51) that fork truck removed, be used for driving the steering unit (52) that fork truck turned to and rotate drive wheel (54) of installing on connecting plate (4), stopper (3) are connected with driving motor (51) electricity through the controller, driving motor (51) and steering unit (52) are all connected with drive wheel (54) through gear box (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111128419.1A CN113788438B (en) | 2021-09-26 | 2021-09-26 | Fork truck braking auxiliary wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111128419.1A CN113788438B (en) | 2021-09-26 | 2021-09-26 | Fork truck braking auxiliary wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113788438A CN113788438A (en) | 2021-12-14 |
| CN113788438B true CN113788438B (en) | 2024-09-03 |
Family
ID=79184334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111128419.1A Active CN113788438B (en) | 2021-09-26 | 2021-09-26 | Fork truck braking auxiliary wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113788438B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106163909A (en) * | 2015-09-15 | 2016-11-23 | 罗春晖 | Electric unicycle with auxiliary wheel and running method thereof |
| CN216105860U (en) * | 2021-09-26 | 2022-03-22 | 安徽合力股份有限公司 | Forklift braking auxiliary wheel |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009035031A (en) * | 2007-07-31 | 2009-02-19 | Hitachi Ltd | Braking device |
| CN208762081U (en) * | 2018-08-28 | 2019-04-19 | 比亚迪股份有限公司 | Suspension device of chassis for fork truck and the fork truck with it |
| CN110255447B (en) * | 2019-07-18 | 2023-11-21 | 杭叉集团股份有限公司 | Forward type fork truck chassis and forward type fork truck |
| CN113002313A (en) * | 2021-03-23 | 2021-06-22 | 浙江鼎奕科技发展有限公司 | Automatic braking device and method for vehicle |
-
2021
- 2021-09-26 CN CN202111128419.1A patent/CN113788438B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106163909A (en) * | 2015-09-15 | 2016-11-23 | 罗春晖 | Electric unicycle with auxiliary wheel and running method thereof |
| CN216105860U (en) * | 2021-09-26 | 2022-03-22 | 安徽合力股份有限公司 | Forklift braking auxiliary wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113788438A (en) | 2021-12-14 |
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