Tire limiting device for automobile detection

Abstract

The utility model discloses a kind of tire limiting device for automobile detection, it is related to automobile detection technical field;Including base, driving part and two limiting parts;First recess is opened on the base, two The limiting part is set in the first recess of the base, for the tire limiting of car;The driving part can drive the linear movement of the limiting part in the first recess, to adjust the distance between two The limiting part, the size of adaptation tire.The beneficial effects of the utility model are that: by driving part can drive two limiting parts to move and adjust the distance of two limiting parts, and then adapt different size tire, when the vehicle of different tire size is detected, it can be adapted.

Description

Technical Field

[0001] This utility model relates to the field of automotive testing technology, and in particular to a tire limiting device for automotive testing. Background Technology

[0002] Vehicle inspection is an examination to determine the technical condition or working capability of a vehicle. Vehicle inspection also requires the inspection of tires to ensure that the vehicle's technical condition is intact. When inspecting vehicle tires, it is usually necessary to limit the tires by using limiting devices to fix them on both sides to ensure their stability and prevent the tires from moving.

[0003] However, different vehicles have different tire sizes, and the limiting device cannot be applied to all tire sizes, causing inconvenience in inspection. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a tire limiting device for automobile inspection, so as to solve the above technical problems.

[0005] This utility model provides a tire limiting device for automobile inspection, including a base, a drive unit, and two limiting parts; the base has a first groove, and the two limiting parts are disposed in the first groove of the base for limiting the tires of the automobile; the drive unit can drive the limiting parts to move linearly within the first groove to adjust the distance between the two limiting parts and adapt to the size of the tire.

[0006] Optionally, the driving unit can drive the two limiting units to move closer or further away synchronously.

[0007] Optionally, the driving part includes a driving unit and a gear. The driving unit drives the gear to rotate. Each of the two limiting parts has a rack that matches the gear. The limiting parts are slidably installed in the first groove of the base. The racks of the two limiting parts are located above and below the gear and mesh with the gear, respectively.

[0008] Optionally, the limiting part includes a sliding unit and a limiting unit, the limiting unit being installed above the sliding unit, and the sliding unit being slidably installed on the inner wall of the first groove of the base and connected to the driving part.

[0009] Optionally, it further includes an elastic reset part, which is located between the sliding unit and the limiting unit, and the elastic reset part has two opposite ends, which are respectively connected to the sliding unit and the limiting unit.

[0010] Optionally, it also includes a retractable guide unit connected between the sliding unit and the limiting unit, for guiding the limiting unit to move up and down above the sliding unit.

[0011] Optionally, the sliding unit includes a connecting rod and a sliding block and a support block fixedly connected to the connecting rod. The sliding block is slidably installed on the inner wall of the first groove of the base. The support block is located on the side of the connecting rod away from the sliding block. The limiting unit is installed above the support block.

[0012] Optionally, the base may also have a second groove at the bottom of the first groove, the second groove being located in the middle of the first groove.

[0013] Optionally, it also includes a fixing plate, which is fixed to the inner wall of the first groove of the base. The fixing plate has a sliding groove, and the sliding unit is partially engaged in the sliding groove and can move in the sliding groove. The limiting unit is connected to the part of the sliding unit located outside the sliding groove.

[0014] Optionally, the support block abuts against the bottom of the first groove and can slide at the bottom of the first groove, or a roller is provided below the support block or at the bottom of the first groove, and the support block slides at the bottom of the first groove via the roller.

[0015] The beneficial effects of this utility model are as follows: the driving part can drive the two limiting parts to move, thereby adjusting the distance between the two limiting parts, and thus adapting to tires of different sizes. It can be adapted to vehicles with different tire sizes during testing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a tire limiting device for automobile inspection according to this utility model.

[0018] Figure 2 This is a structural schematic diagram of a tire limiting device for automobile inspection from another perspective.

[0019] Figure 3 This is an exploded structural diagram of a tire limiting device for automobile inspection according to this utility model.

[0020] In the picture: Base 1, first groove 11, guide surface 12, second groove 13; Drive unit 2, gear 21, drive unit 22; Limiting part 3, sliding unit 31, sliding block 311, connecting rod 313, support block 312, rack 3131, limiting unit 32, arc surface 321, elastic reset part 33; Fixed plate 4, sliding groove 41. Detailed Implementation

[0021] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0022] Unless otherwise explicitly specified and limited, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms based on the specific circumstances.

[0023] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0025] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0026] like Figure 1 and Figure 2As shown, this embodiment provides a tire limiting device for automobile inspection, including a base 1, a drive unit 2, and two limiting parts 3. The base 1 is an elongated structure, and both ends of the base 1 have guide surfaces 12. The guide surfaces 12 gradually recess towards the bottom of the base 1 in a direction that gradually approaches the corresponding ends of the base 1, so that the height of the base 1 at the guide surfaces 12 gradually increases from the ends of the base 1 towards the middle of the length direction of the base 1. The guide surfaces 12 are arc-shaped, so that when the vehicle travels to the guide surfaces 12, they can have a good shape matching with the tires of the vehicle. The base 1 has a first groove 11 extending along the length direction of the base 1 between the two guide surfaces 12. The two limiting parts 3 are disposed in the first groove 11 of the base 1, and the two limiting parts 3 can move along the length direction of the base 1 under the drive of the drive unit 2 to accommodate tires of different diameters and limit tires of various specifications. When a vehicle needs to be inspected, the vehicle travels along the length of the base 1. When the vehicle's tire falls into the first groove 11 of the base 1, the tire is limited by two limiting parts 3 on both sides to prevent the vehicle from moving during the inspection process.

[0027] The tire limiting device for vehicle inspection provided in this embodiment limits the tires of a vehicle by means of two limiting parts 3. When adapting to tires of different sizes, the two limiting parts 3 can be driven by the driving part 2, thereby adjusting the distance between the two limiting parts 3 to adapt to vehicles with tires of different sizes, and has a wide range of applications.

[0028] When vehicle inspection requires tire positioning, multiple tires need to be positioned, such as the two front tires or the two rear tires, for better positioning effectiveness. Correspondingly, multiple tire positioning devices for vehicle inspection provided in this embodiment are needed to position the two front or two rear tires respectively. When inspecting vehicles with different tire sizes, the distance between the two positioning parts 3 needs to be adjusted to accommodate different tire sizes. Since each tire of the vehicle is individually positioned by the tire positioning device provided in this embodiment, the distance between the two positioning parts 3 in each base 1 needs to be adjusted separately when adjusting the distance between the two positioning parts 3. Since the two tires on the front or rear side of the vehicle are symmetrically distributed on the vehicle, during the process of adjusting the distance between the two limiting parts 3, it is not only necessary to adjust the distance between the limiting parts 3 in the two bases 1 on the same side of the vehicle to be consistent, but also to ensure that the limiting parts 3 in one base 1 and the limiting parts 3 in the other base 1 are symmetrically distributed in order to adapt to the two symmetrically distributed wheels on the vehicle. Otherwise, the two tires on the front or rear side of the vehicle cannot be limited at the same time.

[0029] Therefore, in this embodiment, the drive unit 2 can drive the two limiting parts 3 to move closer or further away synchronously. Since the limiting parts 3 move synchronously, when the distance between the two limiting parts 3 is adjusted under the drive of the drive unit 2, the distance the two limiting parts 3 move is the same. In this case, it is only necessary to keep the initial position of the limiting parts 3 in the two bases 1 on the same side of the vehicle consistent. When the distance between the two limiting parts 3 is subsequently adjusted, the limiting parts 3 in the two bases 1 move synchronously, and the limiting part 3 in one base 1 is always symmetrically distributed with the limiting part 3 in the other base 1, which is suitable for the symmetrically distributed tires on the vehicle.

[0030] Specifically, the drive unit 2 includes a drive unit 22 and a gear 21. The drive unit 22 drives the gear 21 to rotate. The drive unit 22 can be a motor, which is mounted on the outer wall of the base 1. A mounting hole communicating with the first groove 11 is opened on the side wall of the base 1. The output end of the motor passes through the mounting hole and connects to the gear 21 located in the first groove 11. Each of the two limiting parts 3 has a rack 3131 that meshes with the gear 21. The two racks 3131 are located above and below the gear 21, respectively, and are slidably mounted on the inner wall of the first groove 11 in the base 1. Specifically, a slider can be provided on the side of the rack 3131 near the inner wall of the first groove 11, and a groove can be provided on the inner wall of the first groove 11. The two racks 3131 are slidably mounted on the inner wall of the first groove 11 through the cooperation of the slider and the groove. With the above structure, the racks 3131 of the two limiting parts 3 can be driven simultaneously by the same gear 21. When the gear 21 rotates, the two limiting parts 3 can move the same distance through the gear 21 and racks 3131, achieving synchronous approach or distance. When the initial positions of the two limiting parts 3 in the two bases 1 are the same, the distance driven by the gear 21 to move the two limiting parts 3 is the same, so that the limiting parts 3 in the two bases 1 are always in a symmetrical distribution state, which is suitable for the symmetrically distributed tires on the vehicle. When adjusting the distance of the limiting parts 3, only the spacing between the limiting parts 3 needs to be adjusted, without the need to spend extra effort to adjust the position of the two bases 1, so that they can always maintain a symmetrical distribution.

[0031] Furthermore, such as Figures 1 to 3As shown, the limiting part 3 includes a sliding unit 31 and a limiting unit 32. The limiting unit 32 is installed above the sliding unit 31 and can move together with the sliding unit 31. Each limiting unit 32 of the two limiting parts 3 has an arc-shaped surface 321 that matches the shape of the tire, and the arc-shaped surfaces 321 of the two limiting parts 3 are opposite each other. The two limiting parts 3 are disposed opposite each other in the first groove 11. The limiting parts 3 limit the tire through the arc-shaped surfaces 321 of the limiting units 32. When the vehicle's tire falls between the two limiting parts 3 in the first groove 11 of the base 1, the limiting parts 3 abut against the vehicle's tire through the arc-shaped surfaces 321 of the limiting units 32, which can reduce damage to the tire. Furthermore, the arc-shaped surfaces 321 of the limiting units 32 of the limiting parts 3 have anti-slip stripes to prevent the vehicle's tire from slipping in the arc-shaped surfaces 321 of the limiting parts 3 when the vehicle is about to leave.

[0032] The sliding unit 31 includes a sliding block 311, a connecting rod 313, and a support block 312. The sliding block 311 and the connecting rod 313 are side-fitted and detachably connected by bolts. The support block 312 and the connecting rod 313 are side-fitted and fixedly connected. The support block 312 and the sliding block 311 are located on two opposite sides of the connecting rod 313. The limiting unit 32 is connected above the support block 312. A fixing plate 4 is also provided in the first groove 11 of the base 1. The fixing plate 4 is fixedly fitted to the inner wall of the first groove 11 of the base 1. A sliding groove 41 is provided on the fixing plate 4. The sliding block 311 of the sliding unit 31 is partially engaged in the sliding groove 41 and can move along the length direction of the base 1 in the sliding groove 41. The limiting unit 32 is connected to the part of the sliding unit 31 located outside the sliding groove 41, thereby enabling the connecting rod 313 and the support block 312 to move along the length direction of the base 1. The upper and lower parts of the sliding block 311 are provided with protrusions. The upper and lower side walls of the corresponding groove 41 of the fixing plate 4 are provided with locking grooves along the length direction of the base 1. The two protrusions of the sliding block 311 are respectively locked into the locking grooves in the groove 41 of the fixing plate 4 (the protrusions and locking grooves are not shown in the figure), which keeps the sliding block 311 in the locking grooves and prevents it from falling off, and allows it to move along the length direction of the base 1. The connecting rod 313 of the sliding unit 31 is connected to the sliding block 311 and the support block 312 through the side. The upper or lower surface of the connecting rod 313 is provided with a row of teeth along the length direction of the base 1 to form the rack 3131. The fixing plate 4 has a connecting hole coaxial with the mounting hole of the base 1. The output end of the motor (drive unit 22) passes through the mounting hole of the base 1 and the connecting hole of the fixing plate 4, and then matches the teeth on the connecting rod 313 through the gear 21. When the output end of the motor drives the gear 21 to rotate, the connecting rod 313 can move linearly through the meshing of the gear and teeth. This causes the sliding block 311 on the connecting rod 313 to slide in the groove 41 of the fixing plate 4, and at the same time causes the support block 312 and the limiting unit 32 on the support block 312 to move linearly. Furthermore, the support block 312 is configured to be able to fit against the bottom of the first groove 11 and slide relative to the bottom of the first groove 11 when it moves to a position close to both ends of the first groove 11. When the vehicle's tire falls into the first groove 11 and abuts against the limiting unit 32 on the support block 312, the bottom of the first groove 11 can provide effective support for the support block 312, avoiding the problem of the support block 312 and the connecting rod 313 breaking due to the impact of the vehicle's weight. In other embodiments, rollers may also be configured below the support block 312 or on the bottom surface of both ends of the first groove 11 to reduce the friction between the bottom of the support block 312 and the bottom surface of the first groove 11, so that the sliding unit 31 can move freely and provide effective support for the vehicle. The dimensions and proportions of the components in the figure are for illustrative purposes only and are used to explain the principle of the scheme. The specific dimensions and shapes are configured according to the actual application.

[0033] In some embodiments, the fixing plate 4 can be omitted, and the sliding groove 41 can be directly formed on the inner wall of the first groove 11 of the base 1. The sliding block 311 of the sliding unit 31 is engaged in the sliding groove 41 and can move along the length direction of the base 1 in the sliding groove 41. The engagement method of the sliding block 311 in the sliding groove 41 is the same as described above. However, this method will increase the manufacturing difficulty of the base 1 and the manufacturing cost will be higher. In some embodiments, the fixing plate 4 can be configured to be detachably connected to the side wall of the first groove 11 of the base 1. For example, coaxial holes are formed on the fixing plate 4 and the side wall of the first groove 11 of the base 1, and the fixing plate 4 and the base 1 are detachably connected together by bolts. In this way, it is convenient to maintain the sliding block 311 when it is stuck in the sliding groove 41.

[0034] Furthermore, due to the large weight of the vehicle body, a significant impact force is generated when the vehicle tire falls into the first groove 11 and abuts against the limiting part 3, causing damage to both the vehicle and the limiting part 3. Therefore, the tire limiting device for vehicle inspection provided in this embodiment also includes an elastic reset part 33. The elastic reset part 33 has two opposing ends, is located between the support block 312 and the limiting unit 32, and its two ends are respectively connected to the support block 312 and the limiting unit 32. The elastic reset part 33 can adapt to the movement of the limiting unit 32 toward the support block 312 through deformation, and can drive the limiting unit 32 away from the support block 312 under the action of elastic reset. When the vehicle's tire falls into the first groove 11 of the base 1 and abuts against the limiting part 3, the elastic reset part 33 can absorb the impact force through its elastic deformation, reducing damage to the vehicle's tire and the limiting part 3. Furthermore, the elastic reset part 33 can absorb the impact of the tire on the support block 312, thereby reducing the damage to the gear 21 caused by the tire impact. Subsequently, after deformation, the elastic reset part 33 lifts the limiting unit 32 to a certain height through its own rebound. In this embodiment, the elastic reset part 33 is a spring, with its two ends fixedly connected to the top of the support block 312 and the bottom of the limiting unit 32, respectively. The elastic reset part 33 can be configured between the sliding units 31 and the limiting units 32 of both limiting parts 3, or it can be configured only in one of the limiting parts 3. In this embodiment, the elastic reset part 33 is only disposed in one of the limiting parts 3, and is disposed in the limiting part 3 that is contacted later when the vehicle's tire falls into the first groove 11, because the limiting part 3 is subject to greater impact from the vehicle's tire, and the provision of the elastic reset part 33 can effectively alleviate the impact. Furthermore, the height of the two limiting units 32 of the limiting part 3 needs to be reasonably set so that the tops of the two limiting units 32 are kept as flush as possible to compensate for the height difference caused by the racks 3131 of the two limiting parts 3 being located above and below the gear 21, respectively.

[0035] Meanwhile, to prevent the limiting unit 32 of the limiting part 3 from tilting to one side and failing to rebound under the impact of the vehicle's tire when it falls into the first groove 11 and contacts the limiting part 3, the tire limiting device for vehicle inspection provided in this embodiment also includes a guide unit. The guide unit is connected between the support block 312 and the limiting unit 32, and is used to guide the limiting unit 32 to move vertically above the support block 312. In this way, when the vehicle's tire contacts the limiting unit 32, the limiting unit 32 can also be kept vertically moving on the support block 312 under the impact force of the tire, so that the spring can rebound and keep the limiting unit 32 at a certain height. Specifically, the guide unit includes a telescopic guide rod (not shown in the figure), which passes through the middle of the spring. One end of the guide rod is fixedly connected to the bottom of the limiting unit 32, and the other end of the guide rod is fixedly connected to the support block 312. This allows the spring to always deform and return to its original position in the vertical direction, preventing the limiting unit 32 from tipping over due to the impact of the tire and the spring from failing to return to its original position.

[0036] Furthermore, such as Figure 3 As shown, the base 1 also has a second groove 13 at the bottom of the first groove 11. The second groove 13 is located in the middle of the first groove 11. This prevents tires of some vehicles from being too large. When the tire falls into the first groove 11 and abuts against the limiting part 3, the bottom of the tire abuts against the bottom of the first groove 11, resulting in insufficient contact between the tire and the limiting part 3. In this case, the limiting part 3 cannot effectively limit the tire. By opening the second groove 13 at the bottom of the first groove 11 of the base 1, the depth of the groove is increased to accommodate more tire sizes.

[0037] In summary, the tire positioning device for automotive inspection provided by this utility model can adapt to tires of different sizes by driving two positioning parts 3 through the drive unit 2. The synchronous movement of the two positioning parts 3 makes adjusting the positioning parts 3 in the multiple bases 1 more convenient, eliminating the need for additional effort to adjust the position of the positioning parts 3 and maintain their symmetrical distribution among the multiple bases 1. Simultaneously, the elastic reset part 33 provided in the positioning part 3 can also reduce the impact force generated when the tire falls into the first groove 11, reducing damage to the tire and the positioning part 3.

[0038] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A tire limiting device for automobile inspection, characterized in that: It includes a base (1), a drive unit (2), and two limiting parts (3); the base (1) has a first groove (11), and the two limiting parts (3) are disposed in the first groove (11) of the base (1) for limiting the tires of the car; the drive unit (2) can drive the limiting parts (3) to move linearly in the first groove (11) to adjust the distance between the two limiting parts (3) to adapt to the size of the tire.

2. The tire limiting device for automobile inspection according to claim 1, characterized in that: The driving unit (2) can drive the two limiting units (3) to move closer or further away synchronously.

3. The tire limiting device for automobile inspection according to claim 2, characterized in that: The drive unit (2) includes a drive unit (22) and a gear (21). The drive unit (22) drives the gear (21) to rotate. Both of the limiting parts (3) have racks (3131) that match the gear (21). The limiting parts (3) are slidably installed in the first groove (11) of the base (1). The racks (3131) of the two limiting parts (3) are located above and below the gear (21) and mesh with the gear (21) respectively.

4. The tire limiting device for automobile inspection according to claim 1, characterized in that: The limiting part (3) includes a sliding unit (31) and a limiting unit (32). The limiting unit (32) is installed above the sliding unit (31). The sliding unit (31) is slidably installed on the inner wall of the first groove (11) of the base (1) and connected to the driving part (2).

5. The tire limiting device for automobile inspection according to claim 4, characterized in that: It also includes an elastic reset part (33), which is located between the sliding unit (31) and the limiting unit (32), and the elastic reset part (33) has two opposite ends, which are respectively connected to the sliding unit (31) and the limiting unit (32).

6. The tire limiting device for automobile inspection according to claim 5, characterized in that: It also includes a retractable guide unit connected between the sliding unit (31) and the limiting unit (32) for guiding the limiting unit (32) to move up and down above the sliding unit (31).

7. The tire limiting device for automobile inspection according to claim 4, characterized in that: The sliding unit (31) includes a connecting rod (313), a sliding block (311) and a support block (312) fixedly connected to the connecting rod (313). The sliding block (311) is slidably installed on the inner wall of the first groove (11) of the base (1). The support block (312) is located on the side of the connecting rod (313) away from the sliding block (311). The limiting unit (32) is installed above the support block (312).

8. The tire limiting device for automobile inspection according to claim 1, characterized in that: The base (1) also has a second groove (13) at the bottom of the first groove (11), and the second groove (13) is located in the middle of the first groove (11).

9. The tire limiting device for automobile inspection according to claim 4, characterized in that: It also includes a fixing plate (4), which is fixed to the inner wall of the first groove (11) of the base (1). The fixing plate (4) has a sliding groove (41), and the sliding unit (31) is partially engaged in the sliding groove (41) and can move in the sliding groove (41). The limiting unit (32) is connected to the part of the sliding unit (31) located outside the sliding groove (41).

10. The tire limiting device for automobile inspection according to claim 7, characterized in that: The support block (312) abuts against the bottom of the first groove (11) and can slide at the bottom of the first groove (11), or a roller is provided below the support block (312) or at the bottom of the first groove (11), and the support block (312) slides at the bottom of the first groove (11) via the roller.

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