Wheel limiting device and vehicle maintenance platform with same

Abstract

The utility model discloses a wheel limiting device and a vehicle maintenance platform with the same. A wheel limiting device belongs to the technical field of vehicles and comprises a limiter, a driver and a locking device, the limiter comprises a limiting body and a rack which are connected, a wheel limiting groove is formed in the side, away from the rack, of the limiting body, the driver comprises a driving motor and a transmission gear, the driving motor is in transmission connection with the transmission gear, and the transmission gear is meshed with the rack. When the locking device is in the locking state, at least one of the rack and the transmission gear is matched with the locking device in a locking mode. According to the wheel limiting device, the driver can drive the limiting stopper to move so as to adjust the position of the wheel limiting groove, the wheel limiting device can be matched with vehicles with different axle distances, the universality of the wheel limiting device can be improved, the locking device can lock the limiting stopper, the limiting stopper is prevented from moving, the position of the wheel limiting groove is kept, and the wheel limiting device is convenient to use. And accurate positioning of the vehicle can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a wheel limiting device and a vehicle maintenance platform with the same. Background Art

[0002] When inspecting a vehicle's battery pack, it is necessary to park the vehicle's battery pack in a preset position. If the position of the battery pack deviates from the preset position, it may cause the inspection equipment and the battery pack to be misaligned, increasing the difficulty of inspection. Therefore, the positioning accuracy of the battery pack can directly affect the difficulty of inspection.

[0003] Currently, when locating a vehicle's battery pack, the driver is usually manually instructed to drive the vehicle, and a stop command is issued when the battery pack reaches a preset position by manual visual inspection to achieve the positioning of the battery pack. This method has low positioning accuracy and is not conducive to maintenance. Utility Model Content

[0004] The present invention aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present invention provides a wheel limiting device that can achieve accurate positioning of vehicles with different wheelbases.

[0005] The utility model also provides a vehicle maintenance platform with the wheel limiting device.

[0006] According to an embodiment of the present invention, the wheel limiting device includes: a limiter, a driver and a lock, the limiter includes: a connected limiting body and a rack, and a wheel limiting groove is formed on the side of the limiting body away from the rack; the driver includes: a driving motor and a transmission gear, the driving motor is connected to the transmission gear, and the transmission gear is meshed with the rack; the lock has a locked state and an unlocked state, in the locked state, at least one of the rack and the transmission gear is locked with the lock, and in the unlocked state, the rack and the transmission gear are both separated from the lock.

[0007] According to the wheel limit device of the embodiment of the present invention, its driver can drive the limiter to move to adjust the position of the wheel limit slot, so that the wheel limit device can match vehicles with different wheelbases, which is beneficial to improving the versatility of the wheel limit device. The locker can lock the limiter to prevent the limiter from moving to maintain the position of the wheel limit slot, which is beneficial to achieve precise positioning of the vehicle.

[0008] According to some embodiments of the present invention, the driver further includes a driving gear, which is fixedly connected to the output shaft of the driving motor and meshes with the transmission gear.

[0009] According to some embodiments of the utility model, the number of teeth of the driving gear is less than the number of teeth of the transmission gear.

[0010] According to some embodiments of the utility model, the limiting body comprises: a first limiting protruding part, a limiting connecting part and a second limiting protruding part, along the extension direction of the rack, the first limiting protruding part, the limiting connecting part and the second limiting protruding part are sequentially connected and jointly define the wheel limiting groove.

[0011] According to some embodiments of the utility model, the first limiting protruding part has a first guide surface, a first connecting surface and a first limiting surface, the first limiting surface is the side wall of one side of the wheel limiting groove, along the extension direction of the rack, the first guide surface, the first connecting surface and the first limiting surface are sequentially connected, and the height of the first limiting surface and the first guide surface gradually decreases in the direction away from the first connecting surface, the second limiting protruding part has a second limiting surface, a second connecting surface and a second guide surface, the second limiting surface is the side wall of the other side of the wheel limiting groove, along the extension direction of the rack, the second limiting surface, the second connecting surface and the second guide surface are sequentially connected, and the height of the second limiting surface and the second guide surface gradually decreases in the direction away from the second connecting surface.

[0012] According to some embodiments of the utility model, the first connecting surface and the second connecting surface are parallel to the horizontal plane.

[0013] According to some embodiments of the utility model, the angle between the first limiting surface and the first connecting surface is α, the angle between the first guide surface and the first connecting surface is β, and the relationship formula is satisfied: 100 ° ≤ β ≤ α ≤ 150 °, the angle between the second limiting surface and the second connecting surface is γ, the angle between the second guide surface and the second connecting surface is δ, and the relationship formula is satisfied: 100 ° ≤ δ ≤ γ ≤ 150 °.

[0014] According to some embodiments of the present utility model, the lock includes: a ratchet pawl, the ratchet pawl having a first pawl portion and a second pawl portion, the ratchet pawl being rotatable around a first axis, and in the locked state, the ratchet pawl rotates to a first locking position or a second locking position, and in the unlocked state, the ratchet pawl rotates to an intermediate position; wherein, when the ratchet pawl is rotated to the first locking position, the first pawl portion is locked with the transmission gear in a first rotation direction of the transmission gear; when the ratchet pawl is rotated to the second locking position, the second pawl portion is locked with the transmission gear in a second rotation direction of the transmission gear, and the second rotation direction is opposite to the first rotation direction; when the ratchet pawl is rotated to the intermediate position, the first pawl portion and the second pawl portion are both separated from the transmission gear, and the intermediate position is located between the first locking position and the second locking position.

[0015] According to some embodiments of the present invention, the locker further includes: a control motor, wherein the output shaft of the control motor is used to drive the ratchet pawl to rotate around the first axis.

[0016] According to another embodiment of the present invention, a vehicle maintenance platform includes the above-mentioned wheel limiting device.

[0017] According to the vehicle maintenance platform of the embodiment of the utility model, the driver of its wheel limit device can drive the limiter to move to adjust the position of the wheel limit slot, so that the wheel limit device can match vehicles with different wheelbases, which is beneficial to improving the versatility of the wheel limit device. The locker can lock the limiter to prevent the limiter from moving to maintain the position of the wheel limit slot, which is beneficial to achieve precise positioning of the vehicle.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the wheel limiting device according to an embodiment of the present utility model when the ratchet pawl is in the middle position;

[0020] Figure 2 is a schematic diagram of the wheel limiting device according to an embodiment of the present utility model when the ratchet pawl is located in the first locking position;

[0021] Figure 3 is a schematic diagram of the wheel limiting device according to an embodiment of the present utility model when the ratchet pawl is located in the second locking position;

[0022] Figure 4is a schematic view of a vehicle maintenance platform and a vehicle according to an embodiment of the present application.

[0023] Reference signs:

[0024] stopper 1, stop body 11, first stop protruding part 111, first guide surface 1111, first connecting surface 1112, first stop surface 1113, stop connecting part 112, second stop protruding part 113, second guide surface 1131, second connecting surface 1132, second stop surface 1133, wheel stop groove 114, rack 12;

[0025] driver 2, driving motor 21, transmission gear 22, driving gear 23;

[0026] lock 3, ratchet pawl 31, first pawl part 311, second pawl part 312, handle 313;

[0027] wheel stop device 10, bearing platform 20, mounting groove 201, vehicle maintenance platform 100, vehicle 200. DETAILED DESCRIPTION

[0028] Embodiments of the present application will be described in detail below with reference to drawings, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0029] In the description of the present application, it should be understood that the terms "length", "upper", "lower", "front", "rear", "horizontal", "inner", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0030] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0031] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or mutual communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0032] The following combination Figures 1-4 The wheel limiting device 10 and the vehicle repair platform 100 having the same according to an embodiment of the present invention are described in detail.

[0033] Reference Figures 1-4 As shown, the wheel limiting device 10 according to the embodiment of the utility model includes: a limiter 1, a driver 2 and a lock 3, the limiter 1 includes: a connected limiting body 11 and a rack 12, and a wheel limiting groove 114 is formed on the side of the limiting body 11 away from the rack 12, the driver 2 includes: a driving motor 21 and a transmission gear 22, the driving motor 21 is connected to the transmission gear 22 for transmission, and the transmission gear 22 is engaged with the rack 12, and the lock 3 has a locked state and an unlocked state. In the locked state, at least one of the rack 12 and the transmission gear 22 is locked with the lock 3, and in the unlocked state, the rack 12 and the transmission gear 22 are both separated from the lock 3.

[0034] It can be understood that the wheel limiting groove 114 can be used to limit the wheels of the vehicle 200. When the vehicle 200 is in the parked state, the wheel limiting groove 114 can limit the movement of the wheels to maintain the position of the battery pack of the vehicle 200 to facilitate maintenance of the battery pack.

[0035] Specifically, when inspecting the battery pack, the lock 3 can be adjusted to the unlocked state first, so that the rack 12 and the transmission gear 22 are both separated from the lock 3, and the driving motor 21 can drive the transmission gear 22 to rotate. The transmission gear 22 can drive the limiting body 11 to move through the rack 12, thereby adjusting the position of the wheel limiting groove 114. After the position adjustment of the wheel limiting groove 114 is completed, the lock 3 is adjusted to the locked state, so that at least one of the rack 12 and the transmission gear 22 is locked with the lock 3. In other words, the rack 12 can be locked with the lock 3, or the transmission gear 22 is locked with the lock 3, or both the rack 12 and the transmission gear 22 are locked with the lock 3 to prevent the rack 12 from moving and maintain the position of the wheel limiting groove 114. Then the vehicle 200 can be driven and the wheel can be driven into the wheel limiting groove 114 and then parked to achieve the positioning of the vehicle 200, so that the battery pack of the vehicle 200 can be located in the preset position, which is convenient for the inspection of the battery pack.

[0036] Among them, the driver 2 drives the limiter 1 to move, and can adjust the position of the wheel limit groove 114 according to the wheelbase of the vehicle 200, so as to realize the positioning of vehicles 200 with different wheelbases, and ensure that the battery pack of vehicles 200 with each wheelbase is located in the preset position. The wheel limit device 10 has good versatility, and after the position adjustment of the wheel limit groove 114 is completed, the limiter 1 is locked by the lock 3 to prevent the limiter 1 from moving, so as to maintain the position of the wheel limit groove 114, which is conducive to realizing the precise positioning of the vehicle 200.

[0037] According to the wheel limiting device 10 of the embodiment of the present invention, its driver 2 can drive the limiter 1 to move to adjust the position of the wheel limiting groove 114, so that the wheel limiting device 10 can match vehicles 200 with different wheelbases, which is beneficial to improving the versatility of the wheel limiting device 10. The locker 3 can lock the limiter 1 to prevent the limiter 1 from moving to maintain the position of the wheel limiting groove 114, which is beneficial to achieve precise positioning of the vehicle 200.

[0038] In some embodiments of the present invention, referring to Figure 1-Figure 3 As shown, the driver 2 also includes a driving gear 23, which is fixedly connected to the output shaft of the driving motor 21. The driving gear 23 is engaged with the transmission gear 22. When the output shaft of the driving motor 21 rotates, the output shaft can drive the driving gear 23 to rotate, and the driving gear 23 can drive the transmission gear 22 to rotate. The transmission gear 22 can drive the rack 12 to move, thereby adjusting the position of the wheel limit groove 114.

[0039] In some embodiments of the present invention, referring to Figure 1-Figure 3 As shown, the number of teeth of the driving gear 23 is smaller than the number of teeth of the transmission gear 22, and the transmission ratio of the driving gear 23 to the transmission gear 22 is greater than 1. That is, the rotational speed of the transmission gear 22 is lower than the rotational speed of the driving gear 23, which can increase the torque transmitted from the driving gear 23 to the transmission gear 22, so that the transmission gear 22 drives the rack 12 to move.

[0040] In some embodiments of the present invention, referring to Figure 1-Figure 3 As shown, the limiting body 11 includes: a first limiting protrusion 111, a limiting connection part 112 and a second limiting protrusion 113. Along the extension direction of the rack 12, the first limiting protrusion 111, the limiting connection part 112 and the second limiting protrusion 113 are sequentially connected and jointly define a wheel limiting groove 114. The wheel limiting groove 114 is suitable for limiting the wheel to prevent the vehicle 200 from moving. The extension direction of the rack 12 can be Figure 1-Figure 3 In the direction from back to front.

[0041] It can be understood that after the wheel enters the wheel limiting groove 114, in the front and rear directions, the first limiting protrusion 111 can stop the wheel at the rear of the wheel, and the second limiting protrusion 113 can stop the wheel in front of the wheel, so as to limit the wheel and prevent the vehicle 200 from moving, so that the battery pack of the vehicle 200 can be maintained in a preset position, which is convenient for the inspection of the battery pack. When the battery pack is being inspected, the wheel is limited by the wheel limiting groove 114, which can effectively prevent the vehicle 200 from moving accidentally, which is beneficial to improving the safety of repairing the battery pack and reducing the risk of accidents.

[0042] In some embodiments of the present invention, referring to Figure 1-Figure 3 As shown, the first limiting protrusion 111 has a first guide surface 1111, a first connecting surface 1112 and a first limiting surface 1113. The first limiting surface 1113 is a side wall on one side of the wheel limiting groove 114. Along the extension direction of the rack 12, the first guide surface 1111, the first connecting surface 1112 and the first limiting surface 1113 are connected in sequence, and the height of the first limiting surface 1113 and the first guide surface 1111 gradually decreases in the direction away from the first connecting surface 1112. The second limiting protrusion 113 has a second limiting surface 1133, a second connecting surface 1132 and a second guide surface 1131. The second limiting surface 1133 is the side wall on the other side of the wheel limiting groove 114. Along the extension direction of the rack 12, the second limiting surface 1133, the second connecting surface 1132 and the second guide surface 1131 are connected in sequence, and the height of the second limiting surface 1133 and the second guide surface 1131 gradually decreases in the direction away from the second connecting surface 1132.

[0043] It can be understood that the heights of the first limiting surface 1113 and the first guide surface 1111 gradually decrease in the direction away from the first connecting surface 1112, and the heights of the second limiting surface 1133 and the second guide surface 1131 gradually decrease in the direction away from the second connecting surface 1132. The first limiting surface 1113, the first guide surface 1111, the second limiting surface 1133 and the second guide surface 1131 are all constructed as inclined surfaces inclined relative to the horizontal plane. The first guide surface 1111 and the second guide surface 1131 are constructed as inclined surfaces so that the wheels can be smoothly guided when entering the wheel limiting groove 114, so as to facilitate the wheels to enter the wheel limiting groove 114.

[0044] Reference Figure 1-Figure 3As shown, the first limiting surface 1113 and the second limiting surface 1133 constructed as inclined surfaces can make the wheel limiting groove 114 constructed as a "V"-shaped groove. In the direction from bottom to top, the groove opening of the wheel limiting groove 114 gradually increases, which is beneficial for the wheel limiting groove 114 to adapt to wheels of different models, thereby helping to improve the versatility of the wheel limiting device 10. In addition, after the battery pack of the vehicle 200 is overhauled, the inclined first limiting surface 1113 and the second limiting surface 1133 facilitate the wheels to drive out of the wheel limiting groove 114.

[0045] In some embodiments of the present invention, referring to Figure 1-Figure 3 As shown, the first connecting surface 1112 and the second connecting surface 1132 are both parallel to the horizontal plane, that is, the first connecting surface 1112 and the second connecting surface 1132 are both planes. The first connecting surface 1112 constructed as a plane can provide a smooth transition surface between the first guide surface 1111 and the first limiting surface 1113, and the second connecting surface 1132 constructed as a plane can provide a smooth transition surface between the second guide surface 1131 and the second limiting surface 1133, which is conducive to the wheels of the vehicle 200 stably and reliably entering or exiting the wheel limiting groove 114, and can effectively reduce the risk of tire puncture.

[0046] In some embodiments of the present invention, referring to Figure 1-Figure 3 As shown, the angle between the first limiting surface 1113 and the first connecting surface 1112 is α, and the angle between the first guide surface 1111 and the first connecting surface 1112 is β, satisfying the relationship: 100°≤β≤α≤150°. For example, when β is 100°, α is 130°, when β is 110°, α is 140°, and when β is 120°, α is 150°.

[0047] It can be understood that if α is less than 100°, the angle between the first limiting surface 1113 and the first connecting surface 1112 is small, the slope of the first limiting surface 1113 is steep, the wheel is difficult to drive out of the wheel limiting groove 114, and the notch of the wheel limiting groove 114 is small, and the limiter 1 is difficult to adapt to wheels of different models. If α is greater than 100°, the angle between the first limiting surface 1113 and the first connecting surface 1112 is large, which will cause the length of the lock 3 in the front and rear directions to increase, and the lock 3 will occupy a large space, resulting in the lock. The risk of interference between the lock 3 and the maintenance equipment increases, and α is in the range of 100° to 150°. The angle between the first limiting surface 1113 and the first connecting surface 1112 is moderate, and the slope of the first limiting surface 1113 is gentle, so that the wheel can drive out of the wheel limiting groove 114, and the notch of the wheel limiting groove 114 is large, which is conducive to the limiter 1 to adapt to wheels of different models. At the same time, the length of the lock 3 in the front and rear directions is small, which is conducive to reducing the space occupied by the lock 3 and reducing the risk of interference between the lock 3 and maintenance equipment.

[0048] If β is less than 100°, the included angle between the first guide surface 1111 and the first connecting surface 1112 is small, the slope of the first guide surface 1111 is steep, and it is difficult for the wheel to enter the vehicle 200 limiting groove. If β is greater than 150°, the included angle between the first guide surface 1111 and the first connecting surface 1112 is large, which causes the length of the lock 3 in the front-back direction to increase, the occupied space of the lock 3 is large, and the risk of interference between the lock 3 and the maintenance equipment is large. When β is in the range of 100°-150°, the included angle between the first guide surface 1111 and the first connecting surface 1112 is moderate, the slope of the first guide surface 1111 is gentle, which is conducive to the wheel entering the vehicle 200 limiting groove, and the length of the lock 3 in the front-back direction is small, which is conducive to reducing the occupied space of the lock 3 and reducing the risk of interference between the lock 3 and the maintenance equipment.

[0049] Referring to Figure 1-Figure 3 As shown in FIG. 11, the included angle between the second limiting surface 1133 and the second connecting surface 1132 is γ, and the included angle between the second guide surface 1131 and the second connecting surface 1132 is δ, which satisfies the relationship: 100°≤δ≤γ≤150°. For example, when δ is 100°, γ is 130°, when δ is 110°, γ is 140°, and when δ is 120°, γ is 150°.

[0050] It can be understood that if γ is less than 100°, the included angle between the second limiting surface 1133 and the second connecting surface 1132 is small, the slope of the second limiting surface 1133 is steep, and it is difficult for the wheel to exit the wheel limiting groove 114, and the slot of the wheel limiting groove 114 is small, which is not conducive to the limiting device 1 adapting to wheels of different vehicle models. If γ is greater than 100°, the included angle between the second limiting surface 1133 and the second connecting surface 1132 is large, which causes the length of the lock 3 in the front-back direction to increase, the occupied space of the lock 3 is large, and the risk of interference between the lock 3 and the maintenance equipment is large. When γ is in the range of 100°-150°, the included angle between the second limiting surface 1133 and the second connecting surface 1132 is moderate, the slope of the second limiting surface 1133 is gentle, which is conducive to the wheel exiting the wheel limiting groove 114, and the slot of the wheel limiting groove 114 is large, which is conducive to the limiting device 1 adapting to wheels of different vehicle models. At the same time, the length of the lock 3 in the front-back direction is small, which is conducive to reducing the occupied space of the lock 3 and reducing the risk of interference between the lock 3 and the maintenance equipment.

[0051] If δ is less than 100°, the angle between the second guide surface 1131 and the second connecting surface 1132 is small, the slope of the second guide surface 1131 is steep, and it is difficult for the wheel to enter the limiting groove of the vehicle 200. If δ is greater than 150°, the angle between the second guide surface 1131 and the second connecting surface 1132 is large, which will cause the length of the lock 3 in the front-to-back direction to increase, and the space occupied by the lock 3 is large, resulting in a greater risk of interference between the lock 3 and the maintenance equipment. When δ is in the range of 100° to 150°, the angle between the second guide surface 1131 and the second connecting surface 1132 is moderate, and the slope of the second guide surface 1131 is gentle, which is conducive to the wheel entering the limiting groove of the vehicle 200, and the length of the lock 3 in the front-to-back direction is small, which is conducive to reducing the space occupied by the lock 3 and reducing the risk of interference between the lock 3 and the maintenance equipment.

[0052] In some embodiments of the present invention, referring to Figure 1-Figure 3 As shown, the locker 3 includes: a ratchet pawl 31, the ratchet pawl 31 has a first pawl portion 311 and a second pawl portion 312, the ratchet pawl 31 is rotatable around a first axis, when in the locked state, the ratchet pawl 31 rotates to the first locking position or the second locking position, when in the unlocked state, the ratchet pawl 31 rotates to the middle position.

[0053] Among them, when the ratchet pawl 31 rotates to the first locking position, in the first rotation direction of the transmission gear 22, the first pawl part is locked and cooperated with the transmission gear 22, and when the ratchet pawl 31 rotates to the second locking position, in the second rotation direction of the transmission gear 22, the second pawl part is locked and cooperated with the transmission gear 22, and the second rotation direction is opposite to the first rotation direction. When the ratchet pawl 31 rotates to the middle position, the first pawl part and the second pawl part are both separated from the transmission gear 22, and the middle position is located between the first locking position and the second locking position. By rotating the ratchet pawl 31, the locking state and the unlocking state of the lock 3 can be switched.

[0054] It is understandable that, referring to Figure 1 As shown, the ratchet pawl 31 is located in the middle position. At this time, the first pawl portion 311 and the second pawl portion 312 are separated from the transmission gear 22, and the locker 3 is in an unlocked state to facilitate adjustment of the position of the wheel limiting groove 114.

[0055] Reference Figure 1 and Figure 2 As shown, when rotating clockwise around the first axis ( Figure 2 When the ratchet pawl 31 is rotated in the first rotation direction (a), the ratchet pawl 31 can be rotated from the middle position to the first locking position to switch the locker 3 from the unlocked state to the locked state. At this time, the first claw portion 311 is inserted into the tooth groove of the transmission gear 22. The first claw portion 311 is in the first rotation direction (b) of the transmission gear 22. Figure 2When the ratchet claw 31 is rotated to the second locking position, the second claw part 312 is inserted into the tooth groove of the transmission gear 22, and the second claw part 312 stops the transmission gear 22 in the second rotation direction (the d direction) to prevent the transmission gear 22 from rotating in the second rotation direction, thereby preventing the rack 12 from moving backward, facilitating the wheel limiting groove 114 to be kept in the preset position when the wheel moves into the wheel limiting groove 114 from front to back, and facilitating the precise positioning of the vehicle.

[0056] Referring to Figure 1 and Figure 3 When the ratchet claw 31 is rotated counterclockwise around the first axis (the b direction), the ratchet claw 31 is rotated from the intermediate position to the second locking position, so as to switch the locker 3 from the unlocked state to the locked state, at this time, the second claw part 312 is inserted into the tooth groove of the transmission gear 22, and the second claw part 312 stops the transmission gear 22 in the second rotation direction (the d direction) to prevent the transmission gear 22 from rotating in the second rotation direction, thereby preventing the rack 12 from moving backward, facilitating the wheel limiting groove 114 to be kept in the preset position when the wheel moves into the wheel limiting groove 114 from front to back, and facilitating the precise positioning of the vehicle. The position of the ratchet claw 31 can be adjusted to realize the bidirectional locking and limiting of the transmission gear 22. Figure 3 Figure 3 In some embodiments of the utility model, the first axis can be parallel to the axis of the transmission gear 22, so as to facilitate the first claw part 311 or the second claw part 312 to be inserted into the tooth groove of the transmission gear 22.

[0057] In some embodiments of the utility model, referring to

[0058] In some embodiments of the utility model, referring to Figure 1-Figure 3 The ratchet claw 31 further has a handle 313 fixedly connected with the first claw part 311 and the second claw part 312, the handle 313 can provide an operation point for the operator, and the operator can rotate the ratchet claw 31 through the handle 313, so as to switch the working state of the locker 3.

[0059] In some embodiments of the utility model, the locker 3 further comprises a control motor, an output shaft of the control motor is used to drive the ratchet claw 31 to rotate around the first axis, so as to adjust the position of the ratchet claw 31 in an electrically driven manner, thereby realizing the electrically switched working state of the locker 3, and facilitating the saving of labor cost.

[0060] According to the wheel limiting device 10 of the utility model embodiment, when the battery pack of the vehicle 200 is overhauled, the battery pack can be quickly positioned through the wheel limiting device 10, which is beneficial to save the overhauling time and improve the overhauling efficiency, the wheel limiting device 10 drives the transmission gear 22 through the driving motor 21 to drive the rack 12 to move, so as to adjust the position of the wheel limiting groove 114, thereby facilitating the wheel limiting device 10 to adapt to vehicles with different wheelbase, and the structure of the wheel limiting device 10 is simple and reliable, and convenient to operate. ​

[0061] Reference Figures 1-4 As shown, a vehicle maintenance platform 100 according to another embodiment of the present invention includes the above-mentioned wheel limiting device 10.

[0062] According to the vehicle maintenance platform 100 of the embodiment of the present utility model, the driver 2 of its wheel limiting device 10 can drive the limiter 1 to move to adjust the position of the wheel limiting groove 114, so that the wheel limiting device 10 can match vehicles 200 with different wheelbases, which is beneficial to improving the versatility of the wheel limiting device 10. The locker 3 can lock the limiter 1 to prevent the limiter 1 from moving to maintain the position of the wheel limiting groove 114, which is beneficial to achieve precise positioning of the vehicle 200.

[0063] In some embodiments of the present invention, referring to Figure 4 As shown, the vehicle maintenance platform 100 also includes a carrying platform 20, which has an installation groove 201. At least a portion of the wheel limiting device 10 is arranged in the installation groove 201, wherein the drive motor 21 can be fixedly connected to the carrying platform 20, and the transmission gear 22 can be rotatably connected to the carrying platform 20 through an axis. The carrying platform 20 is fixedly connected to a guide rail parallel to the extension direction of the rack 12, and a slider that can slide along the guide rail is connected to the guide rail. The limiter 1 is fixedly connected to the slider, and the limiter 1 can be slidably connected to the carrying platform 20 through the sliding cooperation between the guide rail and the slider, and the guide rail and the slider are limited to prevent the limiter 1 from tilting, which is conducive to the stable and reliable parking of the vehicle on the carrying platform 20.

[0064] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0065] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A wheel limiting device, characterized in that: include: A limiter (1), the limiter (1) comprising: a limiter body (11) and a rack (12) connected to each other, a wheel limiter groove (114) being formed on a side of the limiter body (11) facing away from the rack (12); A driver (2), the driver (2) comprising: a driving motor (21) and a transmission gear (22), the driving motor (21) being in transmission connection with the transmission gear (22), and the transmission gear (22) being meshed with the rack (12); A locker (3) has a locked state and an unlocked state. In the locked state, at least one of the rack (12) and the transmission gear (22) is locked with the locker (3). In the unlocked state, both the rack (12) and the transmission gear (22) are separated from the locker (3).

2. The wheel limiting device according to claim 1, characterized in that: The driver (2) further comprises a driving gear (23), wherein the driving gear (23) is fixedly connected to the output shaft of the driving motor (21), and the driving gear (23) is meshed with the transmission gear (22).

3. The wheel limiting device according to claim 2, characterized in that: The number of teeth of the driving gear (23) is smaller than the number of teeth of the transmission gear (22).

4. The wheel limiting device according to claim 1, characterized in that: The limiting body (11) comprises: a first limiting protrusion (111), a limiting connection part (112) and a second limiting protrusion (113); along the extension direction of the rack (12), the first limiting protrusion (111), the limiting connection part (112) and the second limiting protrusion (113) are sequentially connected and jointly define the wheel limiting groove (114).

5. The wheel limiting device according to claim 4, characterized in that: The first limiting protrusion (111) comprises a first guiding surface (1111), a first connecting surface (1112) and a first limiting surface (1113); the first limiting surface (1113) is a side wall on one side of the wheel limiting groove (114); along the extending direction of the rack (12), the first guiding surface (1111), the first connecting surface (1112) and the first limiting surface (1113) are sequentially connected, and the heights of the first limiting surface (1113) and the first guiding surface (1111) gradually decrease in a direction away from the first connecting surface (1112); The second limiting protrusion (113) comprises a second limiting surface (1133), a second connecting surface (1132) and a second guiding surface (1131); the second limiting surface (1133) is a side wall on the other side of the wheel limiting groove (114); along the extension direction of the rack (12), the second limiting surface (1133), the second connecting surface (1132) and the second guiding surface (1131) are connected in sequence, and the heights of the second limiting surface (1133) and the second guiding surface (1131) gradually decrease in a direction away from the second connecting surface (1132).

6. The wheel limiting device according to claim 5, characterized in that: The first connecting surface (1112) and the second connecting surface (1132) are both parallel to the horizontal plane.

7. The wheel limiting device according to claim 6, characterized in that: The included angle between the first limiting surface (1113) and the first connecting surface (1112) is α, and the included angle between the first guiding surface (1111) and the first connecting surface (1112) is β, satisfying the relationship: 100°≤β≤α≤150°; The included angle between the second limiting surface (1133) and the second connecting surface (1132) is γ, and the included angle between the second guiding surface (1131) and the second connecting surface (1132) is δ, satisfying the relationship: 100°≤δ≤γ≤150°.

8. The wheel limiting device according to any one of claims 1 to 7, characterized in that: The locker (3) comprises: a ratchet pawl (31), the ratchet pawl (31) having a first pawl portion (311) and a second pawl portion (312), the ratchet pawl (31) being rotatable around a first axis, and in the locked state, the ratchet pawl (31) being rotated to a first locked position or a second locked position, and in the unlocked state, the ratchet pawl (31) being rotated to an intermediate position; When the ratchet pawl (31) rotates to the first locking position, the first pawl portion (311) locks and cooperates with the transmission gear (22) in the first rotation direction of the transmission gear (22); When the ratchet pawl (31) rotates to the second locking position, the second pawl portion (312) locks with the transmission gear (22) in the second rotation direction of the transmission gear (22), and the second rotation direction is opposite to the first rotation direction; When the ratchet pawl (31) rotates to the intermediate position, the first pawl portion (311) and the second pawl portion (312) are both separated from the transmission gear (22), and the intermediate position is located between the first locking position and the second locking position.

9. The wheel limiting device according to claim 8, characterized in that: The locker (3) further comprises a control motor, wherein the output shaft of the control motor is used to drive the ratchet pawl (31) to rotate around the first axis.

10. A vehicle maintenance platform, characterized in that: The invention comprises a wheel limiting device according to any one of claims 1 to 9.

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