Vehicle tire off-ground detection device for vehicle rollover platform
By designing a tire off-ground detection device for a car tipping table, the tire off-ground detection is automatically detected by the combination of a spring and a stroke switch and the tilt table stops flipping, the vehicle loss problem caused by manual operation reaction time is solved, and the safety of the test is ensured.
Patent Information
- Application Number
- CN202421806034.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-29
AI Technical Summary
In the extreme angle test of the vehicle tipping table, manual operation requires reaction time, which may cause the vehicle of the subject to flip and fall from the table, causing unnecessary losses.
A vehicle tire ground detection device for automobile tilt table is designed, including a base, a pressure plate, a tension spring, a tension belt and a stroke switch. When the tire is off the ground, the pressure plate is no longer subject to tire pressure. The spring drives the connection frame to move, triggers the stroke switch, sends a signal to the car tilt control system, and controls the tilt table to stop flipping.
By automatically detecting the tire off the ground, the reaction time of manual operation is reduced, the test bench and the test vehicle are safe, and unnecessary losses are avoided.
Smart Images
Figure CN222837831U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical testing equipment, in particular to a vehicle tire ground-lift detection device for a vehicle tilting platform. Background Art
[0002] The main function of the car tilting platform is to simulate the rollover conditions that a car may encounter during actual driving, so as to evaluate the vehicle's roll stability and rollover safety, predict the maximum rollover angle, and the test vehicle has a great risk of rolling over.
[0003] At present, when conducting extreme angle tests, most of the time, when approaching the extreme angle, the tilting table is manually controlled by remote control to flip. By visually observing whether the tires on the supporting side away from the flipping table are off the ground, it is judged whether the extreme angle has been reached. Then the vehicle tilting control system is manually operated to control the table to stop flipping. However, manual operation requires reaction time, and this reaction time is very likely to cause the test vehicle to flip and fall from the table, damaging the test vehicle and causing unnecessary losses. Utility Model Content
[0004] In view of the problems existing in the prior art, the utility model provides a vehicle tire ground-lift detection device for a vehicle tipping platform.
[0005] The utility model adopts the following technical solution to solve the above technical problems: a vehicle tire ground-lift detection device for a vehicle tilting platform, comprising a base and a pressure plate, a connecting frame and a fixing frame are relatively arranged on the base, the connecting frame is slidably arranged on the base, a tension spring is arranged between the connecting frame and the fixing frame, a connecting piece is arranged at one end of the connecting frame away from the fixing frame, the connecting piece is connected to the pressure plate through a tensioning belt, a travel switch is also arranged on the base between the connecting frame and the fixing frame, and the detection end of the travel switch faces the connecting frame.
[0006] As a preferred solution, the base is provided with a guide rail, a slider is slidably provided on the guide rail, a connecting frame is fixed on the slider, the connecting frame is U-shaped, and has a horizontal portion and a first vertical portion and a second vertical portion located at both ends of the horizontal portion.
[0007] As a preferred solution, the connecting member is an eye bolt, the bolt portion of the eye bolt is threadedly connected to the first vertical portion, a first locking nut is also threadedly connected to the bolt portion, and the annular portion of the eye bolt is connected to the tensioning belt.
[0008] As a preferred solution, a tensioning bolt is threadedly provided on the fixing frame, and a second locking nut is also provided on the tensioning bolt, the screw portion of the tensioning bolt faces the second vertical portion of the connecting frame, the second vertical portion is provided with a first mounting hole, the screw portion of the tensioning bolt is provided with a second mounting hole, and the tension spring has a first hook and a second hook, the first hook is hooked with the first mounting hole, and the second hook is hooked with the second mounting hole.
[0009] As a preferred solution, a permanent magnetic chuck is provided on one side of the base.
[0010] As a preferred solution, a shield is provided on the base, and a through hole is provided on the shield for the bolt portion of the eye bolt to pass through.
[0011] As a preferred solution, a third hook and a fourth hook are respectively provided at both ends of the tensioning belt, a third mounting hole is provided on the pressure plate, the third hook is hooked with the third mounting hole, and the fourth hook is hooked with the annular portion of the eye bolt.
[0012] As a preferred solution, the third hook is an anti-drop hook or a double-row hook, and the fourth hook is an anti-drop hook.
[0013] As a preferred solution, a baffle is provided on the base, and the baffle abuts against an end of the guide rail facing away from the fixing frame.
[0014] As a preferred solution, a horizontal U-shaped positioning frame is fixed on the base, the positioning frame includes a supporting part, a positioning part and a connecting part, the supporting part and the positioning part are connected by the connecting part, the travel switch is fixed on the supporting part, the positioning part is fixed on the base, and a blocking part is provided on the supporting part extending toward the slider, and the blocking part can be against the slider.
[0015] The beneficial effects of the present application are as follows: 1. The present application sets a pressure plate, a tension spring, a tension belt, and a travel switch. The tire is pressed directly above the pressure plate, so that the tension spring is subjected to a certain tension. When the tire is off the ground, the pressure plate is no longer subjected to tire pressure. Under the action of the tension spring, the connecting frame is driven to move toward the travel switch. The connecting frame contacts the detection end of the travel switch, thereby triggering the travel switch and sending a signal to the vehicle rollover control system. The vehicle rollover control system controls the tilting platform to stop flipping, thereby ensuring the safety of the test bench and the test vehicle.
[0016] 2. By setting a permanent magnetic suction cup, the permanent magnetic suction cup can be fixed on the table top of the automobile tilting platform by its own magnetic force, which is easy to disassemble and has strong flexibility.
[0017] 3. By setting a baffle, it is ensured that the slider will not fall off the slide rail during the process of applying pre-tension to the tension spring. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the structure of the utility model;
[0019] Figure 2 for Figure 1 A side sectional view of
[0020] Figure 3 It is a structural schematic diagram of the tension spring and the connecting frame of the utility model;
[0021] Figure 4This is a structural schematic diagram of the connecting frame of the utility model;
[0022] Figure 5 It is a structural schematic diagram of the positioning frame of the utility model.
[0023] Markings in the figure: 1. pressure plate, 101. third mounting hole, 2. tensioning belt, 3. eye bolt, 31. annular portion, 32. first locking nut, 4. connecting frame, 41. horizontal portion, 42. first vertical portion, 43. second vertical portion, 431. first mounting hole, 5. tension spring, 51. first hook, 52. second hook, 6. fixing frame, 7. base, 8. positioning frame, 81. supporting portion, 811. blocking portion, 82. connecting portion, 83. positioning portion, 9. travel switch, 10. permanent magnetic suction cup, 11. baffle, 12. guide rail, 13. slider, 14. shield, 15. tensioning bolt, 151. second locking nut, 16. fixing frame. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that in the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0025] See also Figure 1-5 The embodiment of the utility model provides a vehicle tire ground-lift detection device for a vehicle tilting platform, including a base 7 and a pressure plate 1, a connecting frame 4 and a fixing frame 6 are relatively arranged on the base 7, the connecting frame 4 is slidably arranged on the base 7, a tension spring 5 is arranged between the connecting frame 4 and the fixing frame 6, a connecting piece is arranged at one end of the connecting frame 4 away from the fixing frame 6, and the connecting piece is connected to the pressure plate 1 through a tensioning belt 2, a travel switch 9 is also arranged on the base 7 between the connecting frame 4 and the fixing frame 6, the tension spring 5 is located above the travel switch 9, and the detection end of the travel switch 9 faces the connecting frame 4.
[0026] Among them, combined Figure 2 and Figure 3As shown, a guide rail 12 is provided on the base 7, and the guide rail 12 is fixedly connected to the base 7 by bolts. A slider 13 is slidably provided on the guide rail 12, and the connecting frame 4 is fixed on the slider 13. The connecting frame 4 is U-shaped, and has a horizontal portion 41 and a first vertical portion 42 and a second vertical portion 43 located at both ends of the horizontal portion 41. The horizontal portion 41 is fixedly connected to the slider 13 by bolts. The horizontal portion 41, the first vertical portion 42 and the second vertical portion 43 are made in one piece.
[0027] Combination Figure 1-3 As shown, the connecting piece is an eye bolt 3, the bolt portion of the eye bolt 3 is threadedly connected to the first vertical portion 42, the first vertical portion 42 is provided with a threaded hole that is threadedly matched with the bolt portion of the eye bolt 3, and the bolt portion is also threadedly connected with a first locking nut 32. There are two first locking nuts 32, and the two first locking nuts 32 are respectively located on both sides of the first vertical portion 42. The annular portion 31 of the eye bolt 3 is connected to the tensioning belt 2.
[0028] Combination Figure 1-3 As shown, a tension bolt 15 is threadedly provided on the fixing frame 6, the fixing frame 6 is L-shaped and has a first horizontal end and a first vertical end connected to the first horizontal end, the first horizontal end is fixedly connected to the base 7 by a bolt, the thread of the screw portion of the tension bolt 15 passes through the first vertical end, and a second locking nut 151 is also provided on the tension bolt 15, the screw portion of the tension bolt 15 faces the second vertical portion 43 of the connecting frame 4, the second vertical portion 43 is provided with a first mounting hole 431, the screw portion of the tension bolt 15 is provided with a second mounting hole, and the tension spring 5 has a first hook 51 and a second hook 52, the first hook 51 is hooked with the first mounting hole 431, and the second hook 52 is hooked with the second mounting hole. By rotating the tension bolt 15, the end of the screw portion of the tension bolt 15 is made close to or away from the second vertical portion 43, so as to adjust different initial pretensions of the tension spring 5, and after the adjustment is completed, the tension bolt 15 is locked by the second locking nut 151, which is convenient to adjust and has strong flexibility.
[0029] Combination Figure 1 As shown, a permanent magnetic suction cup 10 is provided on one side of the base 7, and an L-shaped fixing frame 16 is fixed on one side of the base 7. The fixing frame 16 has a second horizontal end and a second vertical end connected to the second horizontal end. The second horizontal end is welded to the base 7, and the permanent magnetic suction cup 10 is fixed to the second vertical end by bolts. It should be noted that the parts not described in detail in this application are all prior art. During the test, the base 7 is placed on the table top of the car tilting platform, and the permanent magnetic suction cup 10 relies on its own magnetic force to be adsorbed and fixed on the table top of the car tilting platform to ensure that during the test, the base 7 will not be pulled by the initial pre-tension of the tension spring 5.
[0030] Specifically, a baffle 11 is provided on the base 7, and the baffle 11 abuts against one end of the guide rail 12 away from the fixing frame 6. The baffle 11 is L-shaped and has a third horizontal end and a third vertical end connected to the third horizontal end. The third horizontal end is connected to the base 7 by bolts, and the third vertical end abuts against the guide rail 12. The baffle 11 is used to prevent the slider 13 from being separated from the guide rail 12. By providing the baffle 11, it is ensured that the slider 13 will not be separated from the guide rail 12 during the process of applying pre-tension to the tension spring 5.
[0031] More specifically, a shield 14 is provided on the base 7, and the shield 14 is connected to the base 7 by welding or bolts. The shield 14 is provided with a through hole for the bolt portion of the eye bolt 3 to pass through, and the connecting frame 4, the guide rail 12, the baffle 11, the slider 13, the fixing frame 6, the tension spring 5 and the travel switch 9 are all in the shield 14. By providing the shield 14, it is ensured that the internal mechanism is not polluted by dust and oil.
[0032] Specifically, the tensioning belt 2 is provided with a third hook and a fourth hook at both ends, a third mounting hole 101 is provided on the pressing plate 1, the third hook is hooked with the third mounting hole, and the fourth hook is hooked with the annular portion 31 of the eye bolt 3. A folded edge is provided on one side of the pressing plate close to the third mounting hole 101, and the folded edge is bent toward the inner side of the pressing plate. The third hook is an anti-drop hook or a double-row hook, and the fourth hook is an anti-drop hook. The double-row hook adopts a double-row hook well known to those skilled in the art, and the anti-drop hook adopts an anti-drop hook well known to those skilled in the art.
[0033] In addition, a horizontal U-shaped positioning frame 8 is fixed on the base 7, and the positioning frame 8 includes a supporting portion 81, a positioning portion 83 and a connecting portion 82. The supporting portion 81 and the positioning portion 83 are connected by the connecting portion 82, and the travel switch 9 is fixed to the supporting portion 81 by bolts, and the positioning portion 83 is fixed to the base 7 by bolts. A blocking portion 811 is horizontally extended toward the slider 13 on the supporting portion 81, and the blocking portion 811 can resist the slider 13. The supporting portion 81, the blocking portion 811, the positioning portion 83 and the connecting portion 82 are made as one piece, and the supporting portion 81, the positioning portion 83 and the blocking portion 811 are all plate-shaped. When the second vertical end 43 of the connecting frame 4 triggers the travel switch 9, the blocking portion 811 can resist the slider 13 to prevent the slider 13 from continuing to approach the travel switch 9 along the guide rail 12, thereby effectively preventing the slider 13 from damaging the travel switch 9.
[0034] It should also be noted that the car tilting platform has a car tilting control system that controls the tilting of the table top of the car tilting platform. The travel switch 9 of the present application is electrically connected to the car tilting control system. The car tilting control system is the control system of the existing car tilting platform. The control system includes a PLC controller. The control system adopts existing technology and is not described in detail in this application.
[0035] When the present application is actually used, the pressure plate 1 is placed on the table of the automobile tilting platform, the vehicle to be tested is driven onto the tilting platform, the tire is pressed directly above the pressure plate 1, and then the base 7 is fixed on the table using the permanent magnetic suction cup 10, so that the tension spring 5 generates an initial pre-tension force, which can ensure that the pressure plate 1 is pulled back after the tire leaves the ground. When the tire leaves the ground, the pressure plate 1 is no longer subjected to the tire pressure, and under the action of the tension spring 5, the connecting frame 4 is driven to move toward the travel switch 9, and the second vertical end 43 of the connecting frame 4 contacts the detection end of the travel switch 9, thereby triggering the travel switch 9 and sending a signal to the automobile tilting control system, which controls the tilting platform to stop flipping, thereby ensuring the safety of the test bench and the vehicle to be tested. The present application has a simple structure, convenient operation, and high detection efficiency.
[0036] Of course, the present invention is not limited to the above-described implementations. Several other implementations based on the design concept of the present invention are provided below.
[0037] For example, in other embodiments, different from the above-described embodiments, the third hook is an anti-drop hook.
[0038] For example, in other embodiments, different from the above-described embodiments, the thickness of the pressing plate 1 is 1-1.5 mm.
[0039] It should be noted that the above embodiments are only used to illustrate the present utility model, but the present utility model is not limited to the above embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model fall within the protection scope of the present utility model.
Claims
1. A vehicle tire off-ground detection device for a vehicle tipping platform, characterized in that: The invention comprises a base (7) and a pressure plate (1), wherein a connecting frame (4) and a fixing frame (6) are arranged on the base (7) in a relative manner, the connecting frame (4) is slidably arranged on the base (7), a tension spring (5) is arranged between the connecting frame (4) and the fixing frame (6), a connecting piece is arranged at one end of the connecting frame (4) away from the fixing frame (6), and the connecting piece is connected to the pressure plate (1) through a tensioning belt (2), and a travel switch (9) is also arranged on the base (7) between the connecting frame (4) and the fixing frame (6), and the detection end of the travel switch (9) faces the connecting frame (4).
2. A vehicle tire ground-lift detection device for a vehicle tipping platform according to claim 1, characterized in that: The base (7) is provided with a guide rail (12), a slider (13) is slidably provided on the guide rail (12), a connecting frame (4) is fixed on the slider (13), the connecting frame (4) is U-shaped, and the connecting frame (4) has a horizontal portion (41) and a first vertical portion (42) and a second vertical portion (43) located at two ends of the horizontal portion (41).
3. The vehicle tire ground-lift detection device for a vehicle tipping platform according to claim 2, characterized in that: The connecting member is an eye bolt (3), the bolt portion of the eye bolt (3) is threadedly connected to the first vertical portion (42), a first locking nut (32) is also threadedly connected to the bolt portion, and the annular portion (31) of the eye bolt (3) is connected to the tensioning belt (2).
4. The vehicle tire ground-lift detection device for a vehicle tipping platform according to claim 3, characterized in that: A tension bolt (15) is threadedly provided on the fixing frame (6), and a second locking nut (151) is also provided on the tension bolt (15). The screw portion of the tension bolt (15) faces the second vertical portion (43) of the connecting frame (4), and the second vertical portion (43) is provided with a first mounting hole (431). The screw portion of the tension bolt (15) is provided with a second mounting hole. The tension spring (5) has a first hook (51) and a second hook (52). The first hook (51) is hooked with the first mounting hole (431), and the second hook (52) is hooked with the second mounting hole.
5. The vehicle tire ground-lift detection device for a vehicle tipping platform according to claim 1, characterized in that: A permanent magnetic chuck (10) is provided on one side of the base (7).
6. The vehicle tire ground-lift detection device for a vehicle tipping platform according to claim 3, characterized in that: The base (7) is provided with a shield (14), and the shield (14) is provided with a through hole for the bolt portion of the eye bolt (3) to pass through.
7. The vehicle tire ground-lift detection device for a vehicle tipping platform according to claim 3, characterized in that: A third hook and a fourth hook are respectively provided at both ends of the tensioning belt (2); a third mounting hole (101) is provided on the pressing plate (1); the third hook is hooked with the third mounting hole; and the fourth hook is hooked with the annular portion (31) of the eye bolt (3).
8. The vehicle tire ground-lift detection device for a vehicle tipping platform according to claim 7, characterized in that: The third hook is an anti-drop hook or a double-row hook, and the fourth hook is an anti-drop hook.
9. The vehicle tire ground-lift detection device for a vehicle tipping platform according to claim 3, characterized in that: The base (7) is provided with a baffle (11), and the baffle (11) abuts against an end of the guide rail (12) that is away from the fixing frame (6).
10. The vehicle tire ground-lift detection device for a vehicle tipping platform according to claim 2, characterized in that: A horizontal U-shaped positioning frame (8) is fixed on the base (7), the positioning frame (8) comprising a supporting portion (81), a positioning portion (83) and a connecting portion (82), the supporting portion (81) and the positioning portion (83) being connected via the connecting portion (82), the travel switch (9) being fixed on the supporting portion (81), the positioning portion (83) being fixed on the base (7), and a blocking portion (811) extending toward the slider (13) being provided on the supporting portion (81), the blocking portion (811) being capable of abutting against the slider (13).