Tire fixing device and test platform

Abstract

The utility model discloses a tire fixing device and a test platform, and belongs to the technical field of vehicle detection. The tire fixing device comprises a fixing mechanism, the fixing block is mounted on the fixing mechanism; the moving mechanism is connected with the fixing block, the moving mechanism is provided with a gear, a rack and a first locking mechanism, the rack is meshed with the gear, and the first locking mechanism can control rotation of the gear; the second locking mechanism is mounted on one side of the fixing block; the two ends of the bandage are connected with the fixing block and the second locking mechanism respectively. The tire fixing device is simple in structure, convenient to operate, low in manufacturing cost and capable of being repeatedly used. And through combination of the moving mechanism, the fixing block and the fixing mechanism, adjustment can be conducted according to the size of a tire of a vehicle, and the tire is fixed. And by additionally arranging a bandage and a second locking mechanism, constraining force is generated on the tire in the horizontal direction and the vertical direction, and the vehicle is prevented from moving in the testing process. And the connecting piece can move on the clamping groove, so that the application range of the tested vehicle is expanded.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tire fixing device and test platform belong to vehicle detection technical field. BACKGROUND

[0002] When testing the vehicle in the laboratory, the test vehicle must be fixed first, which can avoid the test data deviation caused by vehicle shaking or moving, and can also prevent the vehicle from moving accidentally due to external force or its own power during the test process, thereby ensuring the safety of the test personnel and equipment.

[0003] In the prior art, there are many types of devices for fixing vehicles. A common fixing method is to use the trailer hook of the vehicle for fixing, which requires the configuration of a tension pile and a chain for binding the vehicle. However, this method is relatively high in cost, and the chain as a soft connection has relatively small constraint force in the vertical direction of the vehicle, and is only suitable for vehicles equipped with trailer hooks. Another fixing method is to use the hub fixing hole, but this fixing method is complicated to disassemble and assemble, and because there are many types of hub fixing holes and bolts, the adaptability of the fixing device to the tire is poor. In addition, there is also a method of fixing the tire by using a binding belt, but this method needs to use the fixing points of the test bench or the ground for binding, and cannot be adjusted according to the wheel track change of the vehicle and the size of the tire, resulting in limited range of applicable vehicles. SUMMARY

[0004] The utility model provides a kind of tire fixing device and test platform, to solve the problems of high cost of existing fixing device, relatively small constraint force in the vertical direction of vehicle, complicated disassembly and assembly, poor adaptability of fixing device to tire, and unable to adjust according to the wheel track change of vehicle and the size of tire, resulting in limited range of applicable vehicles.

[0005] The utility model is implemented by the following technical solutions:

[0006] In a first aspect, the utility model provides a kind of tire fixing device, comprising

[0007] Fixing mechanism;

[0008] Fixed block, installed on the fixing mechanism, can be butted with tire;

[0009] Moving mechanism, the moving mechanism is connected with the fixed block, the moving mechanism is provided with gear, rack and first locking mechanism, the rack is engaged with the gear, and the first locking mechanism can control the rotation of the gear;

[0010] Second locking mechanism, installed on one side of the fixed block;

[0011] Binding belt, two ends are connected with the fixed block and the second locking mechanism respectively.

[0012] In an embodiment of the utility model, the fixing mechanism comprises a first fixing plate and a second fixing plate, and the fixing blocks are respectively installed on the first fixing plate and the second fixing plate.

[0013] In an embodiment of the utility model, the moving mechanism is provided with a shaft, and the shaft is rotationally connected with the fixing blocks.

[0014] In an embodiment of the utility model, the gear and the first locking mechanism are sleeved on the outer periphery of the shaft and are connected with the shaft through a key.

[0015] In an embodiment of the utility model, the moving mechanism comprises a fixing member, and the shaft is rotationally connected with the fixing member.

[0016] In an embodiment of the utility model, the moving mechanism further comprises a pull rod, the rack is installed on one end of the pull rod, the end of the pull rod away from the rack is fixedly connected with the fixing member, and the end close to the rack is slidingly connected with the fixing member.

[0017] In an embodiment of the utility model, the fixing block is a wedge-shaped block. The inclined surface of the wedge-shaped block is in abutment with the arc surface of the tire, and when pressure is applied, a large clamping force can be generated, so that the wedge-shaped block can firmly clamp the tire.

[0018] In an embodiment of the utility model, the fixing mechanism is provided with a clamping groove, and a connecting member is installed on the clamping groove. The connecting member is used for fixedly connecting the tire fixing device with the ground.

[0019] In an embodiment of the utility model, a handle and a roller are further included, and the handle and the roller are respectively installed on both ends of the fixing mechanism. When the tire fixing device is moved, the handle is only needed to be gripped and lifted, and the end provided with the roller is made to touch the ground, so that the tire fixing device can be dragged on the ground, time and labor are saved, and the staff can be conveniently carried.

[0020] In a second aspect, the utility model provides a test platform, which comprises the tire fixing device and further comprises a groove, and the tire fixing device is connected with the groove through the connecting member.

[0021] Advantages

[0022] The tire fixing device provided by the utility model has simple structure, convenient operation, low manufacturing cost and reusability, can be adjusted according to the tire size of a test vehicle and fix the tire, the binding belt can be used to bind the tire without the aid of a fixing point of a test bench or the ground, the horizontal direction and the vertical direction of the tire can be simultaneously constrained to prevent the vehicle from moving during the test process, the accuracy of test data is ensured, and the safety of the staff and equipment is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a perspective view of a test platform provided by the utility model;

[0024] Figure 2 is a perspective view of a tire fixing device provided by the utility model;

[0025] Figure 3 is a top view of a moving mechanism provided by the utility model;

[0026] Figure 4 is Figure 3 is a sectional view of A-A in Fig. 1;

[0027] Fig. 1 is a perspective view of a tire fixing device provided by the utility model;

[0028] 1, fixing mechanism; 11, first fixing plate; 12, second fixing plate; 2, moving mechanism; 21, pull rod; 22, gear; 23, rack; 24, first locking mechanism; 25, shaft; 26, key; 27, fixing piece; 3, fixing block; 4, binding belt; 5, second locking mechanism; 6, handle; 7, handle; 8, roller; 9, connecting piece; 10, clamping groove;

[0029] 201, ground; 202, groove; 203, test vehicle; 204, tire. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] In the utility model, unless another definite provision and limitation, the term "connect", "connection", "fixed" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two elements of the interaction relationship.For the ordinary skilled in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model.

[0032] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional features between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the first feature is higher than the second feature in horizontal height.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the first feature is less than the second feature in horizontal height.

[0033] As Figures 1 to 4 The utility model discloses a tire fixing device for fixing the test vehicle 203 in the vehicle test process, prevents the accidental movement of vehicle in the test process, guarantees the safety of test personnel and equipment.The tire fixing device 100 includes fixing mechanism 1, moving mechanism 2, fixed block 3, bandage 4 and second locking mechanism 5.Fixed mechanism 1 has two fixed plates, i.e.first fixed plate 11 and second fixed plate 12, sets up at the both sides of tire 204 respectively.Fixed block 3 also has two, installs on first fixed block 11 and second fixed block 12 respectively, is used for clamping tire 204.Moving mechanism 2 is installed on fixed mechanism 1, can adjust the distance between two fixed plates in fixed mechanism 1, makes this tire fixing device 100 can adjust according to the tire size of vehicle, can be applicable to various vehicles.

[0034] In some embodiments, one side of the fixed block 3 on the second fixed plate 12 is provided with the second locking mechanism 5, one end of the bandage 4 is connected with the fixed block 3 on the first fixed plate 11, and the other end is connected with the second locking mechanism 5 after passing through the upper part of the tire 204, and the second locking mechanism 5 can tighten the bandage 4, so as to realize the constraint of the tire 204 in the vertical direction.

[0035] In some embodiments, the moving mechanism 2 comprises a pull rod 21 and two fixing members 27, which are fixed on the first fixing plate 11 and the second fixing plate 12 respectively and connected with the fixing block 3. The pull rod 21 penetrates through the two fixing members 27, one end of which is fixedly connected with the fixing member 27 on the second fixing plate 12, and the other end is slidably connected with the fixing member 27 on the first fixing plate 11. A rack 23 is installed on the side of the pull rod 21 away from the second fixing plate 12, which can be fixed on the pull rod 21 by bolts. An axle 25 is arranged between the fixing block 3 and the fixing member 27 on the first fixing plate 11, the central axis of the axle 25 is perpendicular to the central axis of the pull rod 21, the axle 25 is rotatably connected with the fixing block 3, and the fixing member 27 is sleeved on the outer periphery of the axle 25. A gear 22 is also sleeved on the axle 25, which is fixedly connected with the axle 25 by a key 26, and the gear 22 is engaged with the rack 23. A first locking mechanism 24 is arranged on the end of the axle 25 away from the fixing block 3, which is fixedly connected with the axle 25 by the key 26.

[0036] Further, in some embodiments, the first locking mechanism 24 is a ratchet locking mechanism, which is composed of a first ratchet and a first fork. When the first fork is in an unfixed state, the axle 25 can rotate freely, the gear 22 can rotate on the rack 23, and the first fixing plate 11 can translate along the length direction of the rack 23 to adjust the distance between the two fixing plates. When the first fixing plate 11 moves to the desired position, the first fork of the first locking mechanism 24 is actuated to a locked state, the first ratchet locks the axle 25 by the key 26, so that the axle 25 cannot rotate, and the gear 22 locks the rack 23 on the pull rod 21, so that the first fixing plate 11 cannot move, that is, the distance between the first fixing plate 11 and the second fixing plate 12 is locked, and the tire 204 is clamped in the horizontal direction. After the test is completed, the first fork is only needed to be opened, and the axle 25 can rotate freely again.

[0037] Further, in some embodiments, the second locking mechanism 5 is also a ratchet locking mechanism, which comprises a second ratchet, a second fork and a rotating shaft. The second ratchet is sleeved on the outer side of the rotating shaft, a handle 6 is installed on one end of the rotating shaft, and the binding belt 4 is wound on the rotating shaft. By rotating the handle 6, the binding belt 4 can be tightened. After the binding belt 4 is tightened, the second fork is actuated to a locked state to be locked. The locking of the tire 204 in the vertical direction is realized. After the vehicle test is completed, the second fork is actuated to an unfixed state, and the handle 6 is reversely rotated to loosen the binding belt 4.

[0038] Further, in some embodiments, the fixing block 3 is a wedge-shaped block, the inclined surface of the wedge-shaped block abuts against the circular arc surface of the tire 204, and a large clamping force can be generated when a pressure is applied, so that the wedge-shaped block can firmly clamp the tire 204.

[0039] Further, in some embodiments, the fixing mechanism 1 is provided with a clamping groove 10 on each of the two fixing plates, the clamping groove 10 is located at an end away from the fixing block 3, and the clamping groove 10 is arranged along the length direction of the fixing plate. The connecting piece 9 is installed on the clamping groove 10, and is used for fixedly connecting the tire fixing device 100 with the ground 201.

[0040] In some embodiments, the fixing mechanism 1 is provided with a roller 8 at a side close to the fixing block 3, and is provided with a handle 7 at an end away from the fixing block 3, and the handle 7 has two, which are respectively installed on the two fixing plates. When the tire fixing device 100 is moved, only the handle 7 needs to be held and lifted, and the end provided with the roller 8 is grounded, so that the tire fixing device 100 can be dragged on the ground, which saves time and labor and is convenient for the staff to carry.

[0041] Optionally, the key 26 is a flat key, which is simple in structure, low in cost, high in connecting strength, and convenient to install and disassemble.

[0042] In addition, the utility model also provides a test platform 200, the test platform 200 includes the above-mentioned tire fixing device 100. The test platform 200 further includes the ground 201, and the ground is pre-buried with the groove 202, the groove 202 has two, and the spacing between the two grooves 202 should be greater than the width of the test vehicle 203. The tire fixing device 100 is connected with the groove 202 on the ground 201 through the connecting piece 9, so that the tire fixing device 100 is fixed on the ground 201.

[0043] Further, in the embodiment, the groove 202 is a T-shaped groove, and the direction of the T-shaped groove is consistent with the advancing direction of the test vehicle 203. The connecting piece 9 is a quick clamping chuck, has the function of clamping and positioning, the direction of the clamping groove 10 is consistent with the axial direction of the tire 204, and the connecting piece 9 can move on the clamping groove 10. When the wheelbase of the test vehicle 203 is large or small, the connecting piece 9 can be adjusted by moving, so that the tire fixing device 100 can be fixed to a plurality of different wheelbase vehicles.

[0044] The utility model discloses a working principle: tire fixing is usually used for the fixing of the non-driving wheel of test vehicle, and each side wheel uses a set when using. When test vehicle 203 stops between two grooves 202, first fixed plate 11 and second fixed plate 12 are placed on the both sides of tire 204, and first fixed plate 11 is moved, the inclined plane of two fixed blocks 3 is in abutment with the arc surface of tire 204, the first yoke of first locking mechanism 24 is prodded, first fixed plate 11 is fixed, and two fixed blocks 3 clamp tire 204. By moving first fixed plate 11, tire fixing device 100 can be suitable for vehicles with different tire sizes. The binding belt 4 is wound from above tire 204 and is connected with second locking mechanism 5, handle 6 is rotated, binding belt 4 is taut, and the second yoke in second locking mechanism 5 is prodded to lock, so that binding belt 4 generates a constraint force in the vertical direction to tire 204, preventing it from shaking up and down. The position of connecting piece 9 is adjusted, so that tire fixing device 100 is fixedly connected with ground 201. By adjusting connecting piece 9, tire fixing device 100 can be suitable for vehicles with different wheelbase. After the test is finished, the second yoke in second locking mechanism 5 is prodded, and handle 6 is reversely rotated, so that binding belt 4 can be loosened, the first yoke of first locking mechanism 24 is prodded, so that shaft 25 can be restored to rotate, first fixed plate 11 is moved, so that tire 204 can be loosened. Grasp handle 7 and lift it, so that one end with roller 8 contacts the ground, so that tire fixing device 100 can be easily dragged away.

[0045] The tire fixing device 100 is simple in structure, convenient to operate, does not need to be configured with tension piles and vehicle binding chains, low in manufacturing cost, reusable, capable of being adjusted according to the wheelbase change of the vehicle and the size of the tire, and suitable for various types of vehicles. It can also generate a constraint force in the horizontal direction and the vertical direction of the tire simultaneously, prevent the vehicle from moving during the test process, and the binding belt 4 does not need to be bound by the fixed point of the test bench or the ground.

[0046] The technical features of the above embodiments can be combined arbitrarily, and to make the description simple, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the description.

[0047] The above embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it should not be understood as the limitation of the scope of the invention patent. It should be pointed out that for ordinary skilled persons in the art, on the premise of not departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model.

[0048] The principle and implementation mode of the present application are described by using specific embodiments, and the above embodiment is only used for helping to understand the method and core idea of the present application. It should be pointed out that, for ordinary skilled persons in the technical field, without departing from the principle of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A tire securing device, characterized by, include: Fixed mechanism (1); The fixing block (3) is installed on the fixing mechanism (1) and can abut against the tire; The moving mechanism (2) is connected to the fixed block (3). The moving mechanism (2) is provided with a gear (22), a rack (23) and a first locking mechanism (24). The rack (23) meshes with the gear (22), and the first locking mechanism (24) can control the rotation of the gear (22). The second locking mechanism (5) is installed on one side of the fixing block (3); The strap (4) is connected at both ends to the fixing block (3) and the second locking mechanism (5), respectively.

2. A tyre fixing device according to claim 1, characterised in that The fixing mechanism (1) includes a first fixing plate (11) and a second fixing plate (12), and the fixing block (3) is respectively installed on the first fixing plate (11) and the second fixing plate (12).

3. A tyre fixing device according to claim 2, characterised in that The moving mechanism (2) is provided with a shaft (25), which is rotatably connected to the fixed block (3).

4. A tyre fixing device according to claim 3, wherein The gear (22) and the first locking mechanism (24) are sleeved on the outer periphery of the shaft (25) and connected to the shaft (25) by a key (26).

5. A tyre fixing device according to claim 4, characterised in that The moving mechanism (2) includes a fixing member (27), and the shaft (25) is rotatably connected to the fixing member (27).

6. A tyre fixing device according to claim 5, wherein The moving mechanism (2) further includes a pull rod (21), and a rack (23) is installed at one end of the pull rod (21). The end of the pull rod (21) away from the rack (23) is fixedly connected to the fixing member (27), and the end close to the rack (23) is slidably connected to the fixing member (27).

7. A tire securing device according to claim 3, wherein The fixing block (3) is a wedge-shaped block.

8. A tire securing device according to claim 2, wherein The fixing mechanism (1) is provided with a slot (10), and a connector (9) is installed on the slot (10).

9. The tire securing apparatus of claim 1, wherein, It also includes a handle (7) and a roller (8), which are respectively installed at both ends of the fixing mechanism (1).

10. A test platform characterized by, The test platform (200) further includes a groove (202) as described in any one of claims 1-9, and the tire fixing device (100) is connected to the groove (202) via the connector (9).

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