Vehicle fixing device for rear lower protection strength test

Abstract

The utility model belongs to the technical field of vehicle strength tests, and particularly relates to a vehicle fixing device for a rear lower protection strength test, which comprises a test bed, wheels are arranged at the corners of the upper side of the test bed, grooves are formed in the top surface of the test bed and located on the two sides of the wheels respectively, and a binding belt is fixedly connected to the bottom surface of the groove on the right side. The other end of the binding belt extends into the left groove, a plurality of conical blocks are fixedly connected to the inner surface of the binding belt, the section of each conical block is trapezoidal, the conical blocks abut against the surface of the wheel, a transverse groove is formed in the side wall of the left groove, a fixing assembly is arranged in the transverse groove, and plugging blocks are arranged on the upper side of the test bed and located on the two sides of the wheel. According to the utility model, the static loading test can be carried out when the vehicle is in a fixed state, so that the damage condition of the vehicle protection facility can be accurately analyzed.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle strength test, and specifically relates to a vehicle fixing device for rear lower protection strength test. Background Art

[0002] According to the requirements of national standards, when conducting product announcement projects, automobiles need to inspect the protective devices of the vehicle, including rear lower protective devices, front lower protective devices, etc. Among them, the strength test of the protective device is particularly important. There are two strength test methods. One is the static loading test, which mainly simulates the test according to the position and load specified by the standard; the other is the dynamic simulation collision test, which simulates the real collision of the vehicle at various angles during the collision process. At present, the cost of real simulation collision tests in vehicle protection is relatively high, which increases the testing cost and burden of enterprises. The static loading test is currently the most commonly used.

[0003] At present, when vehicles are in production or new types of vehicles are being developed, it is necessary to test the strength of the front and rear protection of the vehicle. The traditional test method is to park the car in the test area and use other driving forces to drive the impact facilities to simulate the test of the vehicle's protective devices. There are many ways to fix the vehicle, but all of them have certain defects, such as affecting the test accuracy and posing certain safety hazards.

[0004] It is necessary to develop a device to fix the vehicle when conducting a vehicle protection strength test on the whole vehicle. This can prevent the vehicle from moving when subjected to loading force, causing inaccurate test results. At the same time, it can reduce damage to vehicle parts caused by connection with vehicle components. Utility Model Content

[0005] The purpose of the utility model is to provide a vehicle fixing device for rear lower protection strength test, which can carry out static loading test when the vehicle is in a fixed state, so as to accurately analyze the damage of the vehicle protection facilities.

[0006] The technical solutions adopted in this utility are as follows:

[0007] A vehicle fixing device for a rear lower protection strength test comprises a test bench, wherein wheels are arranged at corners on the upper side of the test bench, grooves are respectively provided on both sides of the wheels on the top surface of the test bench, a restraining belt is fixedly connected to the bottom surface of the groove on the right side, the other end of the restraining belt extends into the groove on the left side, a transverse groove is provided on the side wall of the groove on the left side, a fixing assembly is arranged in the transverse groove, and blocking blocks are provided on both sides of the wheels on the upper side of the test bench.

[0008] The fixing assembly includes a screw threadedly connected to the side wall of the transverse groove, a movable plate threadedly connected to the side wall of the screw, the movable plate is slidably connected to the side wall of the transverse groove, a through hole is opened on the side wall of the restraining belt, the diameter of the through hole is larger than the diameter of the screw, a gasket is sleeved on the side wall of the screw, a nut is threadedly connected to the side wall of the screw on the left side of the gasket, and the nut is abutted against the gasket.

[0009] The side wall of the blocking block close to the wheel is an arc-shaped surface, the bottom surface of the blocking block is fixedly connected with a T-shaped block, the top surface of the test bench is provided with a T-shaped groove, the T-shaped block is slidably connected to the T-shaped groove, and the T-shaped grooves respectively penetrate the test bench.

[0010] A plurality of cone blocks are fixedly connected to the inner surface of the restraint belt, the cross-section of the cone blocks is trapezoidal, and the cone blocks are all against the surface of the wheel.

[0011] The side walls of the groove are respectively provided with rectangular grooves, and cover plates are movably connected in the rectangular grooves, and the width of the cover plates is greater than the width of the groove.

[0012] The top surface of the test bench is provided with a positioning groove at the lower side of the wheel.

[0013] The technical effects achieved by this utility model are:

[0014] The utility model discloses a vehicle fixing device for rear lower protection strength test. Through the mutual cooperation among the test bench, the restraining belt, the blocking block and the fixing assembly, the restraining belt can be used to fix the wheel, and the blocking block can be used for secondary blocking, so that the vehicle is in a fixed state during the simulated static loading test, which is convenient for accurately analyzing the damage of the vehicle bumper and other protective structures. By using this test method, the vehicle will not be displaced when it is hit, and the vehicle will completely absorb the impact force, thereby ensuring the accuracy of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of this practical embodiment

[0016] Figure 2 This is a cross-sectional structural schematic diagram of the practical embodiment

[0017] Figure 3 This is a cross-sectional structural diagram of the restraint belt in this practical embodiment.

[0018] Figure 4 This practical embodiment Figure 2 A in the enlarged view;

[0019] Figure 5 It is a three-dimensional diagram of the test bench of this practical embodiment.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Test bench; 2. Wheel; 3. Groove; 4. Restraint belt; 5. Horizontal groove; 6. Screw; 7. Movable plate; 8. Gasket; 9. Nut; 10. Block; 11. T-block; 12. T-slot; 13. Through hole; 14. Cone block; 15. Cover plate; 16. Positioning groove. DETAILED DESCRIPTION

[0022] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0023] like Figure 1-5 A vehicle fixing device for a rear lower protection strength test comprises a test bench 1, a wheel 2 is arranged at a corner on the upper side of the test bench 1, grooves 3 are respectively provided on both sides of the wheel 2 on the top surface of the test bench 1, a restraint belt 4 is fixedly connected to the bottom surface of the right groove 3, wherein the restraint belt 4 is made of nylon, has strong flexibility, and is not easy to break or damage, the other end of the restraint belt 4 extends into the left groove 3, a transverse groove 5 is provided on the side wall of the left groove 3, a fixing component is arranged in the transverse groove 5, and blocking blocks 10 are provided on both sides of the wheel 2 on the upper side of the test bench 1.

[0024] Among them, the existing strength tests on vehicles are generally carried out on the front and rear bumpers, sides, and 45° impact of the vehicle, and the rear bumper and rear sheet metal are the key items of strength tests.

[0025] like Figure 2-3 The bolt 7 is provided on the side wall of the screw rod 6 and the bolt 7 is provided on the side wall of the screw rod 6. .... The bolt 7 is provided on the side wall of the screw rod 6. The bolt 7 is provided on the side wall of the screw rod 6. The bolt 7 is provided on the side wall of the screw rod 6. The bolt 7 is provided on the side wall of the screw rod 6. The bolt 7 is provided on the side wall of the screw rod 6. The bolt 7 is provided on the side wall of the screw rod 6. The bolt 7 is provided on the side wall of the screw rod 6. The bolt 7 is provided on the side wall of the screw rod 6. The bolt 7 is provided on the side wall of the screw rod 6. The

[0026] In this embodiment, an electric wrench or a manual wrench can be inserted into the hexagonal rotating rod to drive the screw 6 to rotate. The screw 6 moves into the screw hole, pulling the restraint 4 into the transverse groove 5, so that the restraint 4 can press the wheel 2. Moreover, there are multiple through holes 13 on the restraint 4. The through holes 13 at different positions can be inserted into the screw 6 according to the different diameters of the wheels 2, so as to test vehicles of different models.

[0027] like Figure 1-3 As shown, the side wall of the blocking block 10 close to the wheel 2 is an arc-shaped surface, and the bottom surface of the blocking block 10 is fixedly connected to a T-shaped block 11. A T-shaped slot 12 is provided on the top surface of the test bench 1. The T-shaped block 11 is slidably connected to the T-shaped slot 12, and the T-shaped slot 12 passes through the test bench 1 respectively; in order to avoid shaking during the vehicle test, or the restraint belt 4 is displaced with the overall vehicle, a blocking block 10 can be set on both sides of each wheel 2, and the T-shaped block 11 and the T-shaped slot 12 are used for installation. Since the length of the T-shaped block 11 in the T-shaped slot 12 is relatively large, it can not only ensure the convenience of installation, but also avoid the phenomenon of no displacement during collision.

[0028] like Figure 3 As shown, a plurality of cone blocks 14 are fixedly connected to the inner surface of the restraint belt 4, and the cross-section of the cone blocks 14 is trapezoidal, and the cone blocks 14 are all against the surface of the wheel 2; wherein, the cone blocks 14 are distributed in a matrix manner, and when the restraint belt 4 is subjected to force, the cone blocks 14 can be stuck in the gaps on the surface of the tire of the wheel 2, so as to increase the friction and stability between the wheel 2, and the cone blocks 14 are made of any one of rubber, silicone, nylon and other materials.

[0029] like Figure 1-2 As shown, rectangular grooves are respectively provided on the side walls of the groove 3, and cover plates 15 are movably connected in the rectangular grooves, and the width of the cover plates 15 is greater than the width of the groove 3; when the vehicle is driving onto the test bench 1, the cover plates 15 are in a closed state, which is used to close the groove 3, so that the wheel 2 can pass through the cover plates 15 to the parking area. When the vehicle is parked, the cover plates 15 are opened and flipped into the rectangular groove on one side, so that the cover plates 15 are flush with the test bench 1.

[0030] like Figure 2 As shown, a positioning groove 16 is provided on the top surface of the test bench 1 at the lower side of the wheel 2; at this time, when the vehicle is driven into the parking area, when the wheel 2 enters the positioning groove 16 from the test bench 1, the vehicle will produce a bumpy state to remind the driver that the wheel 2 has entered the designated position area and there is no need to drive forward, thereby achieving an instant positioning effect.

[0031] The working principle of the utility model is as follows: firstly, the vehicle to be tested is driven on the test bench 1, so that the four wheels 2 of the vehicle enter the positioning grooves 16 respectively, then the cover plates 15 on both sides are opened, the restraint belts 4 are respectively wound around the wheels 2, and then the other end of the restraint belt 4 is inserted into the screw rod 6 through the through hole 13, and the gasket 8 is put on the screw rod 6, and the nut 9 is tightened so that the nut 9 presses against the gasket 8, and the restraint belt 4 is squeezed between the movable plate 7 and the gasket 8, and then the screw rod 6 is rotated by a wrench so that the screw rod 6 first drives the movable plate 7 to move to a certain distance in the transverse groove 5 After that, the nut 9 is turned to squeeze the gasket 8 between the nut 9 and the movable plate 7. This step can be repeated for many times, so that the tie belt 4 is located in the transverse groove 5 in a tight state. At the same time, the nut 9 and the movable plate 7 are used to squeeze the tie belt 4, which can effectively avoid shaking or loosening. At the same time, the cone block 14 on the inner surface of the tie belt 4 can increase the stability of the wheel 2 when it is fixed, and avoid large displacement when it is hit. Then, the blocking block 10 is inserted into the T-shaped groove 12 through the T-shaped block 11 to block both sides of the wheel 2 to further ensure its stability.

[0032] In summary, through the mutual cooperation among the test bench 1, the restraining belt 4, the blocking block 10 and the fixing components, the wheel 2 can be fixed by the restraining belt 4, and the blocking block 10 can be used for secondary blocking, so that the vehicle is in a fixed state during the simulated static loading test, which is convenient for accurately analyzing the damage to the vehicle bumper and other protective structures. By using this test method, the vehicle will not be displaced when it is hit, and the vehicle will completely absorb the impact force, thereby ensuring the accuracy of the test data.

[0033] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A vehicle fixing device for a rear lower protection strength test, comprising a test bench (1), wherein a wheel (2) is arranged at a corner on the upper side of the test bench (1), and characterized in that: The top surface of the test bench (1) is provided with grooves (3) on both sides of the wheel (2); a restraining belt (4) is fixedly connected to the bottom surface of the right groove (3); the other end of the restraining belt (4) extends into the left groove (3); a transverse groove (5) is provided on the side wall of the left groove (3); a fixing component is arranged in the transverse groove (5); and blocking blocks (10) are arranged on both sides of the wheel (2) on the upper side of the test bench (1).

2. A vehicle fixing device for rear lower protection strength test according to claim 1, characterized in that: The fixing assembly comprises a screw rod (6) threadedly connected to the side wall of the transverse groove (5), a movable plate (7) threadedly connected to the side wall of the screw rod (6), the movable plate (7) being slidably connected to the side wall of the transverse groove (5), a through hole (13) being opened on the side wall of the restraining belt (4), the diameter of the through hole (13) being larger than the diameter of the screw rod (6), a gasket (8) being sleeved on the side wall of the screw rod (6), a nut (9) being threadedly connected to the side wall of the screw rod (6) on the left side of the gasket (8), the nut (9) being abutted against the gasket (8).

3. A vehicle fixing device for rear lower protection strength test according to claim 1, characterized in that: The side wall of the blocking block (10) close to the wheel (2) is an arc-shaped surface, the bottom surface of the blocking block (10) is fixedly connected to a T-shaped block (11), the top surface of the test bench (1) is provided with a T-shaped groove (12), the T-shaped block (11) is slidably connected to the T-shaped groove (12), and the T-shaped groove (12) respectively penetrates the test bench (1).

4. A vehicle fixing device for rear lower protection strength test according to claim 1, characterized in that: A plurality of cone blocks (14) are fixedly connected to the inner surface of the restraining belt (4); the cross section of the cone blocks (14) is trapezoidal, and the cone blocks (14) are all in contact with the surface of the wheel (2).

5. The vehicle fixing device for rear lower protection strength test according to claim 1, characterized in that: The side walls of the groove (3) are respectively provided with rectangular grooves, and cover plates (15) are movably connected in the rectangular grooves. The width of the cover plates (15) is greater than the width of the groove (3).

6. A vehicle fixing device for rear lower protection strength test according to claim 1, characterized in that: The top surface of the test bench (1) is located at the lower side of the wheel (2) and is provided with a positioning groove (16).

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