CN220054009U - Intelligent brake auxiliary wheel based on rotating speed - Google Patents
Intelligent brake auxiliary wheel based on rotating speed Download PDFInfo
- Publication number
- CN220054009U CN220054009U CN202321616846.9U CN202321616846U CN220054009U CN 220054009 U CN220054009 U CN 220054009U CN 202321616846 U CN202321616846 U CN 202321616846U CN 220054009 U CN220054009 U CN 220054009U
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- lock tongue
- groove
- shaft
- auxiliary wheel
- rotating speed
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- 230000003068 static effect Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 210000002221 olecranon process Anatomy 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of vehicle auxiliary wheel devices, in particular to an intelligent brake auxiliary wheel based on rotating speed, which comprises a hub and a tire which can be sleeved with each other, wherein a lock tongue matched with a gear shaft is arranged in a cavity groove of the hub, the lock tongue comprises a lock tongue front edge, a lock tongue body and a lock tongue tail edge, the lock tongue front edge can be meshed with the gear shaft, a limiting part is arranged on the outer side of the lock tongue tail edge, and the limiting part is fixed in the cavity groove. The device is simple in structure, can intelligently realize braking locking in the decelerating and parking process, can automatically release braking after the vehicle is stable, does not need manual intervention, has good auxiliary effect, and can effectively improve the driving safety of a driver.
Description
Technical Field
The utility model relates to the technical field of auxiliary wheel devices of vehicles, in particular to an intelligent brake auxiliary wheel based on rotating speed.
Background
The auxiliary wheel device of the two-wheeled vehicle mainly acts on the two-wheeled electric vehicle, comprises an electric bicycle or a motorcycle and the like, and generally comprises an auxiliary wheel, a driving assembly and a transmission assembly, wherein the auxiliary wheel is arranged on the transmission assembly, and the driving assembly is used for driving the transmission assembly, so that the auxiliary wheel is clung to or separated from the ground, and the purpose of assisting the vehicle in a stop or slow-speed form is achieved.
The utility model patent with publication number CN110341839A discloses an automatic lifting safety auxiliary wheel device with an anti-theft function for a two-wheeled vehicle, which comprises a main shaft, an auxiliary wheel side arm, an auxiliary wheel, a torsion spring, a balance rod and a lifting driving device, and the purposes of improving running safety and assisting in theft prevention are achieved through interaction of the components. The working mechanism is that when the vehicle runs at a high speed, the vehicle is in a retracted state and does not participate in work; when the vehicle is decelerating or stopped, the auxiliary wheel side arm is driven to descend, and the auxiliary wheel is driven to land so as to achieve the auxiliary purpose.
In the process of decelerating and stopping the vehicle, if the brake carried by the vehicle is inflexible, the vehicle cannot be stopped in time, and potential safety hazards are brought to a driver. The brake is not flexible, and the brake is not effective due to the overlong use time, so that the safety assistance can be better carried out on the stopping process of the vehicle if the auxiliary wheel can be endowed with the braking function.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides an intelligent brake auxiliary wheel based on rotating speed, which is used for solving the technical problem that the traditional auxiliary wheel device cannot perform brake assistance.
The above purpose is realized by the following technical scheme:
the intelligent brake auxiliary wheel based on the rotating speed comprises a hub and a tire which can be sleeved with each other, wherein the hub is movably sleeved with a gear shaft, a lock tongue matched with the gear shaft is arranged in a cavity groove of the hub, the lock tongue comprises a lock tongue front edge, a lock tongue body and a lock tongue tail edge, the lock tongue front edge can be meshed with the gear shaft, a limiting part is arranged on the outer side of the lock tongue tail edge, and the limiting part is fixed in the cavity groove;
when the rotating speed is increased, centrifugal force is generated, the limiting part is stressed to deform towards the inner wall of the cavity groove, the tail edge of the lock tongue is stressed to rotate along with the deformation, and the tail edge of the lock tongue is attached to the inner wall of the cavity groove, so that the front edge of the lock tongue is driven to be meshed with the tooth shaft, and locking is realized;
when the rotating speed is reduced or the rotating speed is static, the centrifugal force disappears, the limiting part resets, generates deformation towards the gear shaft and acts on the tail edge of the lock tongue, the tail edge of the lock tongue is reversely rotated by self gravity to drive the front edge of the lock tongue to be separated from the gear shaft, and unlocking is achieved.
Further, the cavity groove comprises a gear shaft clamping groove arranged at the central axis of the hub, a first bearing groove used for filling a first bearing and a second bearing groove used for filling a second bearing are respectively arranged at two sides of the gear shaft clamping groove, and a working groove is arranged at the outer side of the second bearing groove; the first bearing groove, the gear shaft clamping groove, the second bearing groove and the circle center of the working groove are coaxial and are mutually communicated, and a hub cover plate capable of sealing the working groove is arranged on the outer side of the working groove.
Further, the gear shaft comprises a shaft sleeve and a gear which are sleeved with each other, one end of the shaft sleeve is fixedly connected with the inner ring of the first bearing, the other end of the shaft sleeve is clamped through a shaft sleeve through hole formed in the hub cover plate, and the gear is arranged in the working groove.
Further, a plurality of tooth grooves are formed in the gear, and the tooth grooves can be meshed with the front edge of the lock tongue.
Further, the front edge of the lock tongue is in a olecranon shape.
Further, a first bolt rotating shaft hole is formed in the bottom wall of the working groove, a second bolt rotating shaft hole corresponding to the first bolt rotating shaft hole is formed in the hub cover plate, the first bolt rotating shaft hole and the second bolt rotating shaft hole can clamp two ends of the bolt rotating shaft respectively, and the bolt rotating shaft can penetrate through the bolt through hole in the bolt body to realize rotatable connection of the bolt in the working groove.
Further, a spring plate clamping shaft fixing hole is formed in the bottom wall of the working groove, the limiting component comprises a spring plate clamping shaft which is inserted into the spring plate clamping shaft fixing hole, a spring plate is fixed on the spring plate clamping shaft, and the spring plate is arranged between the tail edge of the lock tongue and the inner wall of the working groove.
Further, an expansion groove is formed in the inner wall of the working groove corresponding to the elastic piece, and the expansion groove can be used for the elastic piece after deformation to enter.
Further, the elastic sheet is a flat steel belt and is easy to deform under centrifugal force.
Further, flanges are arranged on the outer wall of the hub at equal intervals, threaded holes are formed in one side, facing the hub cover plate, of the flanges, corresponding screw through holes corresponding to the threaded holes are formed in the hub cover plate, and screws are screwed with the threaded holes after passing through the screw through holes in one side of the hub cover plate.
Further, a groove matched with the flange is formed in the inner wall of the tire.
Advantageous effects
According to the intelligent brake auxiliary wheel based on the rotating speed, the auxiliary wheel can be automatically locked according to the speed of the vehicle only by simply setting the structure in the wheel hub, the brake unlocking can be synchronously realized after the vehicle is stopped, the driver is not influenced to drive again, and manual control is not needed in the whole process. The device is simple in structure, can intelligently realize braking locking in the decelerating and parking process, can automatically release braking after the vehicle is stable, does not need manual intervention, has good auxiliary effect, and can effectively improve the driving safety of a driver.
Drawings
FIG. 1 is a first view of an intelligent braking auxiliary wheel based on rotational speed according to the present utility model;
FIG. 2 is a second view of the intelligent braking auxiliary wheel based on the rotation speed;
FIG. 3 is a cross-sectional view of an intelligent braking auxiliary wheel based on rotational speed according to the present utility model;
FIG. 4 is an exploded view of an intelligent braking auxiliary wheel based on rotational speed according to the present utility model;
FIG. 5 is a first view of a tongue in an intelligent braking auxiliary wheel based on rotational speed according to the present utility model;
FIG. 6 is a second view of the tongue in the intelligent brake auxiliary wheel based on the rotation speed;
FIG. 7 is a schematic diagram of a gear shaft structure in an intelligent brake auxiliary wheel based on rotational speed according to the present utility model;
FIG. 8 is a schematic diagram of a hub structure of an intelligent braking auxiliary wheel based on rotational speed according to the present utility model;
FIG. 9 is a cross-sectional view of a hub in an intelligent braking auxiliary wheel based on rotational speed according to the present utility model;
FIG. 10 is a schematic diagram of an unlocking state of an intelligent brake auxiliary wheel based on a rotating speed;
fig. 11 is a schematic diagram of a locking state of an intelligent brake auxiliary wheel based on a rotating speed.
The graphic indicia:
1-gear shaft, 101-tooth slot, 102-shaft sleeve and 103-gear;
2-cavity grooves, 201-tooth shaft clamping grooves, 202-first bearing grooves, 203-second bearing grooves, 204-working grooves, 205-first lock tongue rotating shaft holes, 206-spring plate clamping shaft fixing holes and 207-expansion grooves;
3-spring bolt, 301-spring bolt leading edge, 302-spring bolt body, 303-spring bolt trailing edge, 304-spring bolt through hole;
4-limiting parts, 401-elastic sheet clamping shafts and 402-elastic sheets;
5-hub cover plate, 501-shaft sleeve through hole, 502-second lock tongue rotating shaft hole and 503-screw through hole;
6-hub, 601-flange, 602-threaded hole;
7-tyre, 701-groove;
8-a bolt rotating shaft;
9-a screw;
10-a first bearing;
11-second bearing.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. The described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 4, an intelligent braking auxiliary wheel based on rotating speed is used for being installed on a vehicle auxiliary wheel device and comprises a wheel hub 6 and a tire 7 which can be sleeved with each other, wherein the wheel hub 6 is movably sleeved with a gear shaft 1;
wherein, a lock tongue 3 matched with the gear shaft 1 is arranged in a cavity groove 2 of the hub 6;
as shown in fig. 5 and 6, the latch 3 includes a latch front edge 301, a latch body 302, and a latch tail edge 303, where the weight of the latch tail edge 303 is greater than that of the latch front edge 301, in a static state, the latch 3 is under the dead weight, the latch tail edge 303 is at a lower end, and the latch front edge 301 is at an upper end, and in this state, the latch front edge 301 is in a completely separated state from the gear shaft 1; the front edge 301 of the lock tongue can be meshed with the gear shaft 1, a limiting component 4 is arranged on the outer side of the tail edge 303 of the lock tongue, and the limiting component 4 is fixed in the cavity 2.
Working principle:
when the rotation speed is increased, centrifugal force is generated, the limiting part 4 is forced to deform towards the inner wall of the cavity groove 2, the tail edge 303 of the lock tongue is forced to rotate along with the deformation and is attached to the inner wall of the cavity groove 2, and the front edge 301 of the lock tongue is driven to be meshed with the tooth shaft 1, so that locking is realized;
when the rotation speed is reduced or the rotation speed is static, the centrifugal force disappears, the limiting component 4 resets, generates deformation towards the gear shaft 1, acts on the lock tongue tail edge 303, the lock tongue tail edge 303 reversely rotates under the self gravity, and drives the lock tongue front edge 301 to be separated from the gear shaft 1, so that unlocking is realized.
As shown in fig. 8 and 9, the cavity groove 2 in the present embodiment includes a gear shaft clamping groove 201 disposed at a central axis position of the hub 6, both sides of the gear shaft clamping groove 201 are respectively provided with a first bearing groove 202 for filling the first bearing 10, and a second bearing groove 203 for filling the second bearing 11, and an outer side of the second bearing groove 203 is provided with a working groove 204; the centers of the first bearing groove 202, the gear shaft clamping groove 201, the second bearing groove 203 and the working groove 204 are coaxial and are mutually communicated, and a hub cover plate 5 capable of sealing the working groove 204 is arranged on the outer side of the working groove 204.
As shown in fig. 3 and 7, the gear shaft 1 includes a shaft sleeve 102 and a gear 103 that are sleeved with each other, one end of the shaft sleeve 102 is fixedly connected with the inner ring of the first bearing 10, the other end of the shaft sleeve 102 is clamped by a shaft sleeve through hole 501 formed in the hub cover plate 5, and the gear 103 is disposed in the working groove 204.
In this embodiment, the shaft sleeve 102 may be sleeved with a rotating shaft disposed at a side of the auxiliary wheel device of the vehicle, and after the sleeve is sleeved, the positions of the shaft sleeve 102 and the gear 103 are kept motionless in the whole working process of the auxiliary wheel device of the vehicle, that is, the hub 6 rotates relative to the shaft sleeve 102 and the gear 103.
Wherein, a plurality of tooth grooves 101 are formed on the gear 103, and the tooth grooves 101 can be meshed with the front edge 301 of the lock tongue.
The front edge 301 of the lock tongue is in a olecranon shape.
Specifically, in the process of decelerating the vehicle, the frontal tire 6 attached to the ground drives the hub 6 to perform a rotational movement, and the hub drives the internal lock tongue 4 and the limiting component 4 to perform a circumferential rotation relative to the gear 103.
As shown in fig. 4 and 8, as a fixing manner of the lock tongue 3 in this embodiment, a first lock tongue rotation shaft hole 205 is formed in a bottom wall of the working groove 204, a second lock tongue rotation shaft hole 502 corresponding to the first lock tongue rotation shaft hole 205 is formed in the hub cover plate 5, the first lock tongue rotation shaft hole 205 and the second lock tongue rotation shaft hole 502 can respectively clamp two ends of the lock tongue rotation shaft 8, the lock tongue rotation shaft 8 can penetrate through a lock tongue through hole 304 formed in the lock tongue body 302, rotatable connection of the lock tongue 3 in the working groove 204 is achieved, and an actual rotation angle is 10 ° -60, so as to ensure that the lock tongue front edge 301 and the lock tongue tail edge 303 cannot interchange positions.
The bottom wall of the working groove 204 is provided with a spring clip clamping shaft fixing hole 206, the limiting component 4 comprises a spring clip clamping shaft 401 inserted into the spring clip clamping shaft fixing hole 206, a spring clip 402 is fixed on the spring clip clamping shaft 401, and as shown in fig. 4, the spring clip 402 is arranged between the lock tongue tail edge 303 and the inner wall of the working groove 204.
As an optimization of the connection manner between the elastic sheet clamping shaft 401 and the elastic sheet 402, in this embodiment, a vertical clamping slot may be formed on the elastic sheet clamping shaft 401, so as to perform fixed clamping with one end of the elastic sheet 402.
Wherein, the shrapnel 402 can be selected from flat steel belts with the brands of phosphor bronze, tin bronze, 65Mn, 55Si2Mn, 60Si2MnA, 55SiMnVB, 55SiMnMoV, 60CrMn, 60CrMnB, 302, 316, etc.
The spring plate is characterized in that: it is easy to bend in only one direction, the plane of minimum stiffness, and has a large tensile and bending stiffness in the other direction. Therefore, the leaf spring is very suitable for being used as a sensitive element, an elastic support, a positioning device, a flexible connection and the like in a detection instrument or an automatic device.
Principle of operation
As shown in fig. 10 and 11, when the tire rotates while touching the ground, centrifugal force is generated in the cavity, the spring plate 402 is easily deformed by the centrifugal force, so as to release the pressure on the spring plate trailing edge 303, and similarly, the spring plate trailing edge 303 also rotates in the direction of deformation of the spring plate 402 due to the centrifugal force, so as to drive the spring plate leading edge 301 to rotate and gradually act on the gear 103, when the spring plate 402 mostly engages with the inner wall of the working groove 204, the rotation angle of the spring plate 3 is the largest at this time, and the spring plate leading edge 301 can engage the contacted tooth groove 101, so as to realize locking.
As can be seen from the above description, the locking provided by this embodiment is not locked by abrupt engagement, but is increased with the rotation speed of the tire 7 (the speed of the vehicle is gradually reduced, the tire 7 of the auxiliary wheel is gradually lowered from a stationary state and then rotated, the speed is relatively increased), the latch bolt 3 is rotated circumferentially along the gear 103, and is continuously engaged with the tooth groove 101, and the process is not directly locked, but the latch bolt 3 is partially engaged with the tooth groove 101, so as to reduce the speed of the vehicle until the rotation angle of the latch bolt 3 is maximized when the elastic piece 402 is mostly engaged with the inner wall of the working groove 204, and the front edge 301 of the latch bolt can engage the tooth groove 101 in contact, so as to realize locking.
As shown in fig. 8, in order to better achieve engagement between the lock tongue 3 and the gear 103, in this embodiment, a capacity expansion groove 207 is formed on the inner wall of the working groove 204 corresponding to the elastic piece 402, the deformed elastic piece 402 can enter the capacity expansion groove 207, so that the rotation angle of the lock tongue 3 can be further enlarged, that is, the tail edge 303 of the lock tongue is attached to the inner wall of the working groove 204, and further, the front edge 301 of the lock tongue can better act on the tooth slot 101.
As shown in fig. 4, as a connection manner between the hub 6 and the hub cover plate 5 in this embodiment, a flange 601 is provided on an outer wall of the hub 6 at equal distance, a threaded hole 602 is provided along a side of the flange 601 facing the hub cover plate 5, correspondingly, a screw through hole 503 corresponding to the threaded hole 602 is provided on the hub cover plate 5, and a screw 9 is screwed with the threaded hole 602 after passing through the screw through hole 503 along a side of the hub cover plate 5.
The inner wall of the tire 7 is provided with a groove 701 matched with the flange 601, so that the tire 7 and the hub 6 are connected in a side-position plugging mode, the structure can increase the friction force between the tire 7 and the hub 6, and displacement of the tire 7 and the hub 6 due to rotation can be effectively prevented.
The above description is for the purpose of illustrating the embodiments of the present utility model and is not to be construed as limiting the utility model, but is intended to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principle of the utility model.
Claims (10)
1. The intelligent brake auxiliary wheel based on the rotating speed is characterized by comprising a hub (6) and a tire (7) which can be sleeved with each other, wherein the hub (6) is movably sleeved with a gear shaft (1), a lock tongue (3) matched with the gear shaft (1) is arranged in a cavity groove (2) of the hub (6), the lock tongue (3) comprises a lock tongue front edge (301), a lock tongue body (302) and a lock tongue tail edge (303), the lock tongue front edge (301) can be meshed with the gear shaft (1), a limiting part (4) is arranged on the outer side of the lock tongue tail edge (303), and the limiting part (4) is fixed in the cavity groove (2);
when the rotating speed is increased, centrifugal force is generated, the limiting part (4) is stressed to deform towards the inner wall of the cavity groove (2), the tail edge (303) of the lock tongue is stressed to rotate along with the deformation and is attached to the inner wall of the cavity groove (2), and the front edge (301) of the lock tongue is driven to be meshed with the tooth shaft (1) in a closing manner, so that locking is realized;
when the rotating speed is reduced or the rotating speed is static, the centrifugal force disappears, the limiting component (4) resets, deformation towards the gear shaft (1) is generated, the deformation acts on the lock tongue tail edge (303), the lock tongue tail edge (303) reversely rotates under the self gravity, and the lock tongue front edge (301) is driven to be separated from the gear shaft (1), so that unlocking is realized.
2. The intelligent brake auxiliary wheel based on the rotating speed according to claim 1, wherein the cavity groove (2) comprises a gear shaft clamping groove (201) arranged at the central axis position of the hub (6), two sides of the gear shaft clamping groove (201) are respectively provided with a first bearing groove (202) used for filling a first bearing (10) and a second bearing groove (203) used for filling a second bearing (11), and the outer side of the second bearing groove (203) is provided with a working groove (204); the first bearing groove (202), the gear shaft clamping groove (201), the second bearing groove (203) and the circle center of the working groove (204) are coaxial and are mutually communicated, and a hub cover plate (5) capable of sealing the working groove (204) is arranged on the outer side of the working groove (204).
3. The intelligent brake auxiliary wheel based on the rotating speed according to claim 2, wherein the gear shaft (1) comprises a shaft sleeve (102) and a gear (103) which are mutually sleeved, one end of the shaft sleeve (102) is fixedly connected with an inner ring of the first bearing (10), the other end of the shaft sleeve (102) is clamped through a shaft sleeve through hole (501) formed in the hub cover plate (5), and the gear (103) is arranged in the working groove (204).
4. A speed-based intelligent brake auxiliary wheel according to claim 3, wherein the gear (103) is provided with a plurality of tooth grooves (101), and the tooth grooves (101) can be meshed with the front edge (301) of the lock tongue.
5. A speed-based intelligent braking assistance wheel according to claim 1 or 4, characterized in that the tongue leading edge (301) is olecranon-shaped.
6. The intelligent brake auxiliary wheel based on the rotating speed according to claim 3, wherein a first bolt rotating shaft hole (205) is formed in the bottom wall of the working groove (204), a second bolt rotating shaft hole (502) corresponding to the first bolt rotating shaft hole (205) is formed in the hub cover plate (5), the first bolt rotating shaft hole (205) and the second bolt rotating shaft hole (502) can respectively clamp two ends of the bolt rotating shaft (8), and the bolt rotating shaft (8) can be penetrated and provided with the brake auxiliary wheel
And a bolt through hole (304) on the bolt body (302) realizes rotatable connection of the bolt (3) in the working groove (204).
7. The intelligent brake auxiliary wheel based on the rotating speed according to claim 2, wherein an elastic sheet clamping shaft fixing hole (206) is formed in the bottom wall of the working groove (204), the limiting component (4) comprises an elastic sheet clamping shaft (401) which is inserted into the elastic sheet clamping shaft fixing hole (206), an elastic sheet (402) is fixed on the elastic sheet clamping shaft (401), and the elastic sheet (402) is arranged between the lock tongue tail edge (303) and the inner wall of the working groove (204).
8. The intelligent braking auxiliary wheel based on the rotating speed according to claim 7, wherein a capacity expansion groove (207) is formed in the inner wall of the working groove (204) corresponding to the elastic piece (402), and the capacity expansion groove (207) can be used for the elastic piece (402) after deformation to enter.
9. The intelligent braking auxiliary wheel based on the rotating speed according to claim 7, wherein the elastic sheet (402) is a flat steel belt and is easy to deform under the centrifugal force.
10. The intelligent brake auxiliary wheel based on the rotating speed according to claim 2, wherein flanges (601) are equidistantly arranged on the outer wall of the hub (6), threaded holes (602) are formed in one side, facing the hub cover plate (5), of the flanges (601), corresponding screw through holes (503) corresponding to the threaded holes (602) are formed in the hub cover plate (5), and screws (9) are screwed with the threaded holes (602) after passing through the screw through holes (503) along one side of the hub cover plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321616846.9U CN220054009U (en) | 2023-06-25 | 2023-06-25 | Intelligent brake auxiliary wheel based on rotating speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321616846.9U CN220054009U (en) | 2023-06-25 | 2023-06-25 | Intelligent brake auxiliary wheel based on rotating speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220054009U true CN220054009U (en) | 2023-11-21 |
Family
ID=88749575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321616846.9U Active CN220054009U (en) | 2023-06-25 | 2023-06-25 | Intelligent brake auxiliary wheel based on rotating speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220054009U (en) |
-
2023
- 2023-06-25 CN CN202321616846.9U patent/CN220054009U/en active Active
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