CN214648191U - Foot-operated fluted disc parking device - Google Patents
Foot-operated fluted disc parking device Download PDFInfo
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- CN214648191U CN214648191U CN202120596312.9U CN202120596312U CN214648191U CN 214648191 U CN214648191 U CN 214648191U CN 202120596312 U CN202120596312 U CN 202120596312U CN 214648191 U CN214648191 U CN 214648191U
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- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000003466 welding Methods 0.000 claims description 21
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- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 206010066054 Dysmorphism Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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Abstract
The utility model provides a foot-operated fluted disc parking device, which comprises a parking operation device, a connecting rod actuating mechanism, a parking locking device and a signal feedback device, wherein the parking operation device is used for receiving parking operation of a driver, realizing parking operation positioning and transmitting parking braking force to the connecting rod actuating mechanism; the connecting rod actuating mechanism is used for receiving the driving force and the driving stroke transmitted by the parking control device, controlling the driving fluted disc of the driving fluted disc assembly to move, providing an axial maintaining force when the fluted discs are meshed, and realizing the stable parking braking of the vehicle; the parking locking device is arranged on a brake control shaft of the service brake device and used for fixing the brake control shaft. The utility model discloses can liberate driver's hand operation, can promote vehicle parking stability, control precision and adaptability again simultaneously.
Description
Technical Field
The utility model belongs to the technical field of crawler-type armoured vehicle braking system, concretely relates to foot-operated fluted disc parking device.
Background
The brake system is a series of special devices for forcibly reducing the running speed of the crawler-type armored vehicle and keeping the vehicle stationary, and can be divided into a service brake device, a parking brake device and a brake. The parking brake device is an important component of a vehicle brake system and is used for ensuring the vehicle to be stationary or to be braked emergently.
However, the conventional crawler-type armored vehicle parking device generally needs manual operation of a driver, and meanwhile, a lock hook type parking structure is generally adopted, so that the problems of poor parking stability, low precision and weak deformation capability of adapting to a vehicle body are also existed while a great deal of manual operation of the driver is occupied. Therefore, a parking device capable of operating with feet, releasing the hand operation of the driver, and improving the parking stability, the steering accuracy, and the adaptability of the vehicle is very necessary.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a foot control fluted disc parking device to solve crawler-type armoured vehicle parking device and generally need driver's manual control, occupy driver's manual control in a large number and parking poor stability, precision are low, adapt to the technical problem that automobile body deformability is weak.
(II) technical scheme
In order to solve the technical problem, the utility model provides a foot-operated fluted disc parking device, which comprises a parking operation device, a connecting rod actuating mechanism and a parking locking device; wherein,
the parking control device is used for receiving parking operation of a driver, realizing parking operation positioning and transmitting parking braking force to the connecting rod actuating mechanism and comprises a parking pedal connecting rod, a control device shell, a sliding block welding assembly, a positioning pin shaft and a main spring; the parking pedal connecting rod is formed by connecting a parking pedal and a connecting rod assembly; the shell of the operating device consists of two guide rail plates, two sliding rail plates, a shell cover and a shell seat to form a closed cavity; the sliding block welding assembly is formed by connecting a sliding block and a connecting column; the connecting rod assembly is fixed at the upper end of the connecting column, the connecting column is inserted into the cavity of the shell of the operating device through the shell cover, and the lower end of the connecting column is fixedly connected with the sliding block; the sliding block is fixed in a guide rail formed by two guide rail plates so as to ensure that the sliding block can only slide up and down in the shell of the operating device; the positioning pin shaft penetrates through the through groove in the side face of the sliding block, two ends of the positioning pin shaft are respectively installed in the sliding rails arranged on the inner walls of the two sliding rail plates, and the sliding block welding assembly moves according to the track on the sliding rails through the limiting of the positioning pin shaft; the main spring is arranged in the shell of the operating device and is arranged between the sliding block and the shell seat, and the main spring needs to be pre-pressed during installation so as to provide resilience force for resetting the sliding block welding assembly;
the connecting rod actuating mechanism is used for receiving the driving force and the driving stroke transmitted by the parking control device, controlling the driving fluted disc of the driving fluted disc assembly to move, providing axial maintaining force when the fluted disc is meshed, and realizing stable parking braking of the vehicle; the driving fluted disc assembly is formed by connecting a driving fluted disc and a connecting block, the connecting block is arranged in a fluted disc bearing seat and can freely slide along the axial direction, the connecting block has a non-circular cross section and is matched with a special-shaped inner hole of the fluted disc bearing seat, so that the driving fluted disc is ensured not to rotate in the circumferential direction; one end of the spring lock catch is screwed into the spring push rod through a thread structure, and the other end of the spring lock catch is sleeved into the driving fluted disc assembly through a notch on the connecting block; a parking spring is sleeved on the periphery of the spring lock catch, and the parking spring needs to be pre-pressed during installation so as to provide a holding force for driving the fluted disc to compress; one end of the spring push rod penetrates into the push rod bearing seat, and a sliding bearing is embedded between the spring push rod and the push rod bearing seat to reduce sliding friction force; the push rod bearing seat and the fluted disc bearing seat are both fixed on the vehicle body bracket; one end of the connecting rod is hinged with the other end of the spring push rod through a pin shaft, and one end of the connecting rod is connected with a connecting rod assembly of the parking pedal connecting rod through a pin shaft so as to receive and transmit the operating force;
the parking locking device is arranged on a brake control shaft of the service brake device, is used for fixing the brake control shaft and comprises a brake fluted disc and a fastener; the brake gear disc is sleeved on a brake control shaft of the driving brake device, is circumferentially positioned through a flat key and is axially compressed through a fastener; when the brake gear disc is locked, the brake gear disc can ensure that the service brake pedal shaft is locked, and the purpose of parking brake is achieved.
Furthermore, the slide rail on the inner wall of the slide rail plate is a polygonal annular rail with four positioning points A-D; in an initial state, the whole body formed by the parking pedal connecting rod and the sliding block welding assembly is fixed at the highest point of the shell of the operating device under the pressure of the main spring, and the positioning pin shaft is positioned at the point A; when the parking pedal is stepped on, the parking pedal connecting rod drives the sliding block welding assembly to move downwards, and when the positioning pin shaft moves to a point B along the sliding rail, the action is stopped; when the pedal is released, the sliding block moves upwards under the action of the main spring, and the positioning pin shaft stops after moving to a point C along the sliding rail, wherein the parking operation is carried out in the process; when the parking device needs unlocking, the parking pedal is stepped on again, the positioning pin shaft moves to a point D along the sliding rail and then stops moving, the pedal is released again, the positioning pin shaft resets to a point A along the sliding rail, unlocking operation is completed, and the parking device resets.
Further, the parking device further comprises a signal feedback device; the signal feedback device is used for feeding back parking signals and comprises a sensor connecting rod, a driving column bearing seat, a connecting column, an elastic coupling and an angular displacement sensor; the driving column is arranged in the driving column bearing seat and can freely rotate in the driving column bearing seat; one end of the driving column is connected with the brake control shaft through the sensor connecting rod and used for collecting the action of the brake control shaft, the other end of the driving column is connected with the connecting column through a threaded structure, and then the angular displacement sensor is finally driven through the elastic coupling to achieve the output of signals.
Further, the angular displacement sensor is fixed to the sensor mounting plate and protected by a sensor shield.
(III) advantageous effects
The utility model provides a foot-operated fluted disc parking device, which comprises a parking operation device, a connecting rod actuating mechanism, a parking locking device and a signal feedback device, wherein the parking operation device is used for receiving parking operation of a driver, realizing parking operation positioning and transmitting parking braking force to the connecting rod actuating mechanism; the connecting rod actuating mechanism is used for receiving the driving force and the driving stroke transmitted by the parking control device, controlling the driving fluted disc of the driving fluted disc assembly to move, providing an axial maintaining force when the fluted discs are meshed, and realizing the stable parking braking of the vehicle; the parking locking device is arranged on a brake control shaft of the service brake device and used for fixing the brake control shaft. The utility model discloses can liberate driver's hand operation, can promote vehicle parking stability, control precision and adaptability again simultaneously.
Drawings
Fig. 1 is a schematic view of a parking device according to an embodiment of the present invention;
fig. 2 is a schematic composition diagram of the parking control device according to the embodiment of the present invention;
fig. 3 is an exploded schematic view of the parking operating device according to the embodiment of the present invention;
fig. 4 is a schematic diagram of a track of a slide rail of the parking control device according to the embodiment of the present invention;
FIG. 5 is a schematic view of the connecting rod actuator according to an embodiment of the present invention;
fig. 6 is an exploded view of the linkage actuator according to the embodiment of the present invention;
fig. 7 is a schematic diagram of a movement position of the link actuator according to the embodiment of the present invention;
FIG. 8 is a schematic diagram of a toothed disc engagement of the parking device according to an embodiment of the present invention;
FIG. 9 is a schematic view of a parking lock device according to an embodiment of the present invention;
FIG. 10 is an exploded view of the parking lock according to the embodiment of the present invention;
fig. 11 is a schematic diagram of the signal feedback device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following description will make a detailed description of embodiments of the present invention with reference to the accompanying drawings and examples.
The present embodiment provides a foot-operated fluted disc parking device, which has a structure as shown in fig. 1, and includes a parking operation device 1, a link actuator 2, a parking lock device 3, and a signal feedback device 4. The parking control device 1 is arranged on the left foot side of a driver and used for receiving parking operation of the driver, positioning two positions of the parking operation and transmitting parking braking force of the driver to the connecting rod actuating mechanism 2. The connecting rod actuating mechanism 2 is used for receiving the driving force and the driving stroke transmitted by the parking control device 1, controlling the driving fluted disc of the driving fluted disc assembly to move, providing an axial maintaining force when the fluted discs are meshed, and realizing the stable parking braking of the vehicle. The parking lock device 3 is mounted on a brake operating shaft of the service brake device for fixing the brake operating shaft. The signal feedback device 4 is arranged at the rear side of the brake pedal for feeding back a parking signal.
As shown in fig. 2, the parking manipulating device 1 includes a parking pedal link 101, a manipulating device housing 102, a slider welding assembly 103, a positioning pin 104, and a main spring 105.
As shown in fig. 3, the parking pedal link 101 is formed by welding a parking pedal 101.1 and a link assembly 101.2. The operator housing 102 is composed of two rail plates 102.1, two rail plates 102.2, a housing cover 102.3 and a housing base 102.4, and is fastened by 12 fixing screws to form a closed cavity. The slider welding assembly 103 is formed by welding a slider 103.1 and a connecting column 103.2. The connecting rod assembly 101.2 is fixed at the upper end of the connecting column 103.2 through a nut, the connecting column 103.2 is inserted into the cavity of the operating device shell 102 through the shell cover 102.3, and the lower end of the connecting column 103.2 is welded and fixed with the sliding block 103.1. The slide 103.1 is fixed in a guide rail consisting of two guide rail plates 102.1, in order to ensure that the slide 103.1 can only slide up and down in the manipulator housing 102. The positioning pin 104 penetrates through the through groove on the side surface of the sliding block 103.1, two ends of the positioning pin 104 are respectively installed in the sliding rails arranged on the inner walls of the two sliding rail plates 102.2, and the sliding block welding assembly 103 moves according to the track on the sliding rails through the limiting of the positioning pin 104. The main spring 105 is arranged in the manipulator housing 102 and is mounted between the slider 103.1 and the housing seat 102.4, and the main spring 105 is pre-stressed during mounting to provide a resilient force for resetting the slider welding assembly 103.
In the initial state, the parking pedal link 101 and the slider welding assembly 103 are integrally fixed to the highest point of the operator housing 102 under the pressure of the main spring 105, and the positioning pin 104 is located at point a as shown in fig. 4. When a driver steps on the parking pedal 101.1, the parking pedal connecting rod 101 drives the sliding block welding assembly 103 to move downwards, and when the positioning pin shaft 104 moves to a point B along the sliding rail, the action is stopped. When the driver releases the pedal, the slide block 103.1 moves upwards under the action of the main spring 105, and the positioning pin shaft 104 stops after moving to the point C along the slide rail, and the process is parking operation. When the unlocking is needed, the driver steps on the parking pedal 101.1 again, the positioning pin shaft 104 moves to a point D along the sliding rail and stops moving, the pedal is released again, the positioning pin shaft 104 resets to a point A along the sliding rail, the unlocking operation is completed, and the device resets.
As shown in fig. 5 and 6, the linkage actuator 2 includes a drive cog assembly 201, a parking spring 202, a push rod bearing seat 203, a cog bearing seat 204, a spring catch 205, a slide bearing 206, a spring push rod 207, and a connecting rod 208. Wherein, drive fluted disc assembly 201 is formed by the welding of drive fluted disc and connecting block, and the connecting block is installed in fluted disc bearing frame 204, can follow the axial and freely slide, and the connecting block has non-circular cross section, with the cooperation of the dysmorphism hole of fluted disc bearing frame 204, can guarantee that the drive fluted disc does not take place circumferential direction. One end of the spring lock catch 205 is screwed into the spring push rod 207 through a thread structure, and the other end of the spring lock catch 205 is sleeved into the driving fluted disc assembly 201 through a notch on the connecting block. The parking spring 202 is sleeved on the periphery of the spring lock 205, and the parking spring 202 needs to be pre-pressed during installation so as to provide a holding force for driving the fluted disc to compress. One end of the spring push rod 207 penetrates into the push rod bearing housing 203, and a sliding bearing 206 is embedded between the two to reduce sliding friction. The push rod bearing pedestal 203 and the fluted disc bearing pedestal 204 are fixed on a vehicle body bracket through bolts. One end of the connecting rod 208 is hinged with the other end of the spring push rod 207 through a pin shaft, and the other end of the connecting rod 208 is connected with the connecting rod assembly 101.2 of the parking pedal connecting rod 101 through a pin shaft, so that the receiving and the transmission of the operating force are realized.
As shown in fig. 7, in the initial state, since the connecting rod 208 is connected to the link assembly 101.2 of the parking pedal link 101, the whole link actuator 2 is located at the leftmost side, the driving toothed disc is completely separated from the braking toothed disc of the parking lock device 3, and the corresponding positioning pin 104 is located at the position a in fig. 4. When the driver depresses the parking pedal 101.1, the connecting rod 208 pushes the spring push rod 207 to slide to the right in the slide bearing 206. The spring push rod 207 pushes the driving fluted disc assembly 201 to move rightward through the parking spring 202 until the driving fluted disc of the driving fluted disc assembly 201 is completely attached to the brake fluted disc 301, and at this time, the corresponding positioning pin shaft 104 is located at the position of the point E in fig. 4. The driver continues to depress the parking pedal 101.1 until the positioning pin 104 is located at the position B in fig. 4, in the process, the spring lock 205 and the connecting block are separated from each other from the fit state, and the compression amount of the parking spring 202 is increased. When the driver releases the pedal, the connecting rod 208 pulls the spring push rod 207 leftward under the driving of the parking pedal connecting rod 101 until the positioning pin 104 in the parking operating device 1 is located at the position C in fig. 4, that is, each component of the link actuator 2 in fig. 7 is located at the position C (and so on in correspondence with other positions in fig. 4 and 7). Similarly, when the driver presses the parking pedal 101.1 again to start unlocking operation, all the components in the connecting rod executing mechanism 2 return to the initial position A after passing through the position D, the unlocking operation is finished, and the device is reset.
When the driver completes parking braking, that is, each component of the link actuator 2 in fig. 7 is located at position C, because the parking braking mode is the toothed disc engagement braking, as shown in fig. 8, the driver can continuously step on the service brake pedal along the toothed disc tooth engagement direction until the service brake pedal is located at a proper position, and the toothed direction can ensure that the brake toothed disc 301 can only rotate towards one direction.
As shown in fig. 9 and 10, the parking lock device 3 includes a brake sprocket 301 and a fastener 302. The brake toothed disc 301 is sleeved on a brake control shaft of the service brake device, is circumferentially positioned through a flat key, and is axially pressed through a fastener 302. The parking locking device 3 is used for locking the service brake control shaft, and when the brake fluted disc 301 is locked, the service brake pedal shaft can be ensured to be locked, so that the purpose of parking braking is achieved.
As shown in fig. 11, the signal feedback device 4 includes a sensor linkage 401, a drive column 402, a drive column bearing housing 403, an attachment column 404, a resilient coupling 405, an angular displacement sensor 406, a sensor mounting plate 407, and a sensor shroud 408. The driving column 402 is installed in the driving column bearing block 403 and can freely rotate in the driving column bearing block 403, one end of the driving column 402 is connected with the brake control shaft through the sensor connecting rod 401 and used for collecting the action of the brake control shaft, the other end of the driving column is connected with the connecting column 404 through a threaded structure, and the angular displacement sensor 406 is finally driven through the elastic coupling 405, so that the signal output is achieved. Angular displacement sensor 406 is secured to sensor mounting plate 407 and is protected by sensor shield 408. The signal feedback device has the functions of collecting mechanical signals of the parking brake and converting the mechanical signals into electric signals, and meanwhile, certain protection is provided for the sensor.
The utility model discloses a parking device, parking controlling device 1 arrange in driver's left foot side, carry out the parking by driver's left foot and control, when the vehicle need park, step on driving brake pedal by driver's right foot earlier, and parking pedal on the parking controlling device 1 is stepped on to the reuse left foot, can accomplish the parking. The parking pedal is depressed again, and the unlocking operation of parking can be completed. The main locking structure of the parking device is locked by adopting a fluted disc meshing mode, a braking fluted disc is fixed on the parking locking device 3, and a driving fluted disc is fixed on the connecting rod actuating mechanism 2. The parking control device 1 drives the connecting rod actuating mechanism 2 to realize the meshing locking of the fluted disc, and finally, the parking brake of the vehicle is realized. After the parking brake operation is finished, namely when the vehicle is kept in the parking state, if the driver judges that the parking is unstable, the parking force value is increased, no additional operation is needed, and only the service brake pedal is needed to be continuously stepped until the parking effect is achieved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (4)
1. The parking device is characterized by comprising a parking control device, a connecting rod actuating mechanism and a parking locking device; wherein,
the parking control device is used for receiving parking operation of a driver, realizing parking operation positioning and transmitting parking braking force to the connecting rod actuating mechanism and comprises a parking pedal connecting rod, a control device shell, a sliding block welding assembly, a positioning pin shaft and a main spring; the parking pedal connecting rod is formed by connecting a parking pedal and a connecting rod assembly; the shell of the operating device consists of two guide rail plates, two sliding rail plates, a shell cover and a shell seat to form a closed cavity; the sliding block welding assembly is formed by connecting a sliding block and a connecting column; the connecting rod assembly is fixed at the upper end of the connecting column, the connecting column is inserted into the cavity of the shell of the operating device through the shell cover, and the lower end of the connecting column is fixedly connected with the sliding block; the sliding block is fixed in a guide rail formed by two guide rail plates so as to ensure that the sliding block can only slide up and down in the shell of the operating device; the positioning pin shaft penetrates through the through groove in the side face of the sliding block, two ends of the positioning pin shaft are respectively installed in the sliding rails arranged on the inner walls of the two sliding rail plates, and the sliding block welding assembly moves according to the track on the sliding rails through the limiting of the positioning pin shaft; the main spring is arranged in the shell of the operating device and is arranged between the sliding block and the shell seat, and the main spring needs to be pre-pressed during installation so as to provide resilience force for resetting the sliding block welding assembly;
the connecting rod actuating mechanism is used for receiving the driving force and the driving stroke transmitted by the parking control device, controlling the driving fluted disc of the driving fluted disc assembly to move, providing axial maintaining force when the fluted disc is meshed, and realizing stable parking braking of the vehicle; the driving fluted disc assembly is formed by connecting a driving fluted disc and a connecting block, the connecting block is arranged in a fluted disc bearing seat and can freely slide along the axial direction, the connecting block has a non-circular cross section and is matched with a special-shaped inner hole of the fluted disc bearing seat, so that the driving fluted disc is ensured not to rotate in the circumferential direction; one end of the spring lock catch is screwed into the spring push rod through a thread structure, and the other end of the spring lock catch is sleeved into the driving fluted disc assembly through a notch on the connecting block; a parking spring is sleeved on the periphery of the spring lock catch, and the parking spring needs to be pre-pressed during installation so as to provide a holding force for driving the fluted disc to compress; one end of the spring push rod penetrates into the push rod bearing seat, and a sliding bearing is embedded between the spring push rod and the push rod bearing seat to reduce sliding friction force; the push rod bearing seat and the fluted disc bearing seat are both fixed on the vehicle body bracket; one end of the connecting rod is hinged with the other end of the spring push rod through a pin shaft, and one end of the connecting rod is connected with a connecting rod assembly of the parking pedal connecting rod through a pin shaft so as to receive and transmit the operating force;
the parking locking device is arranged on a brake control shaft of the service brake device, is used for fixing the brake control shaft and comprises a brake fluted disc and a fastener; the brake gear disc is sleeved on a brake control shaft of the driving brake device, is circumferentially positioned through a flat key and is axially compressed through a fastener; when the brake gear disc is locked, the brake gear disc can ensure that the service brake pedal shaft is locked, and the purpose of parking brake is achieved.
2. The foot-operated chainring parking device according to claim 1, wherein the rail on the inner wall of the rail plate is a polygonal ring rail having four positioning points a to D; in an initial state, the whole body formed by the parking pedal connecting rod and the sliding block welding assembly is fixed at the highest point of the shell of the operating device under the pressure of the main spring, and the positioning pin shaft is positioned at the point A; when the parking pedal is stepped on, the parking pedal connecting rod drives the sliding block welding assembly to move downwards, and when the positioning pin shaft moves to a point B along the sliding rail, the action is stopped; when the pedal is released, the sliding block moves upwards under the action of the main spring, and the positioning pin shaft stops after moving to a point C along the sliding rail, wherein the parking operation is carried out in the process; when the parking device needs unlocking, the parking pedal is stepped on again, the positioning pin shaft moves to a point D along the sliding rail and then stops moving, the pedal is released again, the positioning pin shaft resets to a point A along the sliding rail, unlocking operation is completed, and the parking device resets.
3. The foot operated chainring parking apparatus of claim 1, further comprising a signal feedback device; the signal feedback device is used for feeding back parking signals and comprises a sensor connecting rod, a driving column bearing seat, a connecting column, an elastic coupling and an angular displacement sensor; the driving column is arranged in the driving column bearing seat and can freely rotate in the driving column bearing seat; one end of the driving column is connected with the brake control shaft through the sensor connecting rod and used for collecting the action of the brake control shaft, the other end of the driving column is connected with the connecting column through a threaded structure, and then the angular displacement sensor is finally driven through the elastic coupling to achieve the output of signals.
4. The foot-operated chainring parking device of claim 3, wherein the angular displacement sensor is secured to the sensor mounting plate and protected by a sensor shield.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120596312.9U CN214648191U (en) | 2021-03-24 | 2021-03-24 | Foot-operated fluted disc parking device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120596312.9U CN214648191U (en) | 2021-03-24 | 2021-03-24 | Foot-operated fluted disc parking device |
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| CN214648191U true CN214648191U (en) | 2021-11-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112829726A (en) * | 2021-03-24 | 2021-05-25 | 北京北方车辆集团有限公司 | Foot-operated fluted disc parking device |
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2021
- 2021-03-24 CN CN202120596312.9U patent/CN214648191U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112829726A (en) * | 2021-03-24 | 2021-05-25 | 北京北方车辆集团有限公司 | Foot-operated fluted disc parking device |
| CN112829726B (en) * | 2021-03-24 | 2024-05-10 | 北京北方车辆集团有限公司 | Foot-operated fluted disc parking device |
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