A novel van body strength testing device

Abstract

This utility model discloses a novel van body strength testing device, belonging to the field of van body testing devices. It includes an air bag, an air bag mounting frame, sensors, and a support device. The support device includes a support frame, guide rails, a slider, an assembly frame, support rods, support blocks, anti-slip blocks, and a positioning device. The air bag assembly frame, equipped with a guide rail, is slidably mounted on the assembly frame via the support frame and sliders. Sensors are arranged along the sliding direction for accurate measurement. The support rods and support blocks, hinged in opposite directions to the air bag mounting frame, together with the anti-slip blocks of the support blocks, form the first layer of anti-slip and anti-tipping support. The positioning device allows the assembly frame to adhere to and compress the van body, forming a second layer of anti-slip and anti-tipping support with the anti-slip blocks at the bottom of the assembly frame. This ensures the stability of the assembly frame during testing, eliminating the need for welding and locking to the van body, which can affect the van body structure. The testing device can be removed simply by releasing the adsorption of the positioning device, making it convenient and quick.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle body testing devices, and specifically relates to a novel vehicle body strength testing device. Background Technology

[0002] According to relevant national road transport standards, requirements for the strength test of freight vehicle body walls are specified. Currently, the strength test of body walls generally uses mechanical pressure devices or a combination of mechanical devices and air bags. However, existing technologies are divided into bidirectional top pressure measurement and unidirectional top pressure measurement. Bidirectional top pressure measurement does not meet the requirements of the industry standard for unilateral force scenario. It is easy for symmetrical pressure to offset part of the reaction force, making it impossible to obtain accurate test results. Existing unidirectional top pressure testing devices often need to be fixed to the body by spot welding or locking in order to make the device stable, which will have a certain impact on the body itself and is cumbersome and inconvenient to operate. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To overcome the shortcomings of existing technologies, a new type of van body strength testing device is proposed to solve the problems of existing unidirectional top-pressure testing devices, which often need to be fixed to the van body by spot welding or locking in order to ensure stable positioning of the device. This will have a certain impact on the van body itself, and the operation is cumbersome and inconvenient, as well as the test accuracy is poor.

[0005] (II) Technical Solution

[0006] This utility model is achieved through the following technical solution: This utility model proposes a novel box-type vehicle body strength testing device, the structure of which includes an air bag, an air bag fixing frame, a sensor and a support device. The air bag fixing frame is assembled on one side of the support device, and an air bag is assembled on the side of the air bag fixing frame away from the support device. The sensor is used to detect the force exerted by the air bag fixing frame on the support device.

[0007] The support device includes a support frame, a guide rail, a slider, an assembly frame, a support rod, a support block, an anti-slip block, and a positioning device. The guide rail is fixed on the assembly frame, and the support frame is slidably assembled on the guide rail via the slider. The support frame is fixedly connected to the air bag fixing frame. A sensor is assembled between the assembly frame and the air bag fixing frame along the sliding direction. The side of the assembly frame away from the air bag fixing frame is hinged to one end of the support rod, and the other end of the support rod is hinged to the support block. Anti-slip blocks are assembled at the bottom of both the support block and the assembly frame. The positioning device is used for adsorption and compression fixing of the assembly frame inside the vehicle compartment.

[0008] Furthermore, the sensor is a pressure sensor.

[0009] Furthermore, the support frame is a triangular frame.

[0010] Furthermore, the anti-slip block is a block with a rough surface on the bottom or is made of anti-slip materials such as rubber.

[0011] Furthermore, both the air bag fixing frame and the assembly frame are composed of multiple combination rods, and the combination method is locking.

[0012] Furthermore, the combined rod is made of aluminum alloy.

[0013] Furthermore, the positioning device includes a body, a cover plate, a connecting rod, a first elastic element, a pressure plate, a locking element, a handle, a linkage rod, a battery, an assembly block, a through groove, a second elastic element, an electromagnet, and an adsorption groove. The bottom of the body is provided with an adsorption groove, and the electromagnet is placed in the adsorption groove with its adsorption surface facing down. The top of the electromagnet is fixedly connected to the linkage rod and a second elastic element is assembled between the electromagnet and the body. The side end of the linkage rod is provided with a threaded groove. The top of the linkage rod passes through the body and the pressure plate and is locked with the locking element. The assembly block is fixed to the body. The handle passes through the pressure plate and is locked with the assembly block. A through groove is provided on the body. The connecting rod passes through the through groove and is locked with the assembly frame at both ends. A first elastic element is assembled between the pressure plate and the body. The body is equipped with a battery and sealed by a cover plate. The battery is electrically connected to the electromagnet. An anti-slip block is also assembled at the bottom of the body.

[0014] Furthermore, both the first elastic element and the second elastic element are compression springs.

[0015] Furthermore, the positioning device also includes a pressure block, which penetrates through the top of the machine body and communicates with the top of the through groove, and the top of the pressure block is connected to the first elastic element.

[0016] Furthermore, the positioning device also includes a positioning block, which is located on the side of the pressure block adjacent to the through groove.

[0017] Furthermore, the positioning block is a block with a rough bottom surface or is made of anti-slip materials such as rubber.

[0018] Furthermore, the positioning device also includes positioning grooves, which are evenly distributed on the top of the connecting rod, and the positioning block fits into the positioning grooves.

[0019] Furthermore, the positioning device also includes bolts for locking the pressure block.

[0020] Furthermore, the linkage rod is clearance-fitted with the machine body, pressure block, and pressure plate.

[0021] Furthermore, the positioning device also includes a locking structure, which consists of a mating protrusion and a groove, the protrusion and the groove being respectively disposed on the pressure plate and the locking member.

[0022] (III) Beneficial Effects

[0023] One of the above technical solutions has the following advantages or beneficial effects:

[0024] The airbag assembly frame, equipped with a guide rail, is slidably mounted on the support frame and slider. When the airbag is used for testing, the airbag fixing frame will drive the support frame to slide in a fixed direction. The sensors are arranged along the sliding direction, allowing the sensors to accurately measure the force value and reduce errors. When the assembly frame is pressed down by the airbag fixing frame, the counter-hinged support rod and support block, together with the anti-slip slider at the bottom of the support block, form the first layer of anti-slip and anti-tipping support. The positioning device allows the assembly frame to adhere to and compress the carriage. Combined with the anti-slip slider at the bottom of the assembly frame, this makes the assembly frame more difficult to slide and prevents it from tipping over under pressure, forming the second layer of anti-slip and anti-tipping support. This ensures the stability of the assembly frame during testing, eliminating the need for welding and locking to the carriage, which can affect the carriage structure. The test device can be removed simply by releasing the adsorption of the positioning device, which is convenient and quick. Attached Figure Description

[0025] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the present invention from the side view.

[0028] Figure 3 This is a structural schematic diagram of the positioning device of this utility model from the side view.

[0029] Figure 4 This is a cross-sectional structural schematic diagram of the positioning device of this utility model from the front view.

[0030] Figure 5 This is a structural schematic diagram of the positioning device in Embodiment 7 of this utility model, taken from the side view.

[0031] Figure 6 This is a cross-sectional structural schematic diagram of the positioning device in Embodiment 8 of this utility model;

[0032] In the diagram: Airbag-1, Airbag Fixing Frame-2, Sensor-3, Support Device-4, Support Frame-401, Guide Rail-402, Slider-403, Assembly Frame-404, Support Rod-405, Support Block-406, Anti-slip Slide-407, Positioning Device-408, Combination Rod-40401, Body-40801, Cover Plate-40802, Connecting Rod-40803, First Elastic Component-40804, Pressure Plate -40805, Locking component -40806, Handle -40807, Linkage rod -40808, Battery -40809, Assembly block -40810, Locking structure -40811, Pressure block -40812, Positioning block -40813, Through groove -40814, Second elastic component -40815, Electromagnet -40816, Adsorption groove -40817, Positioning groove -40818, Bolt -40819. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the embodiments, but the implementation of the present invention is not limited thereto.

[0034] Example 1:

[0035] This utility model provides a novel box-type vehicle body strength testing device: its structure includes an air bag 1, an air bag fixing frame 2, a sensor 3 and a support device 4. The air bag fixing frame 2 is mounted on one side of the support device 4, and the air bag 1 is mounted on the side of the air bag fixing frame 2 away from the support device 4. The sensor 3 is used to detect the force exerted by the air bag fixing frame 2 on the support device 4.

[0036] The support device 4 includes a support frame 401, a guide rail 402, a slider 403, an assembly frame 404, a support rod 405, a support block 406, an anti-slip block 407, and a positioning device 408. The guide rail 402 is fixed on the assembly frame 404. The support frame 401 is slidably assembled on the guide rail 402 via the slider 403. The support frame 401 is fixedly connected to the air bag fixing frame 2. A sensor 3 is assembled between the assembly frame 404 and the air bag fixing frame 2 along the sliding direction. The side of the assembly frame 404 away from the air bag fixing frame 2 is hinged to one end of the support rod 405. The other end of the support rod 405 is hinged to the support block 406. Anti-slip blocks 407 are assembled at the bottom of both the support block 406 and the assembly frame 404. The positioning device 408 is used for adsorption and compression fixation of the assembly frame 404 inside the carriage.

[0037] Among them, sensor 3 is a pressure sensor.

[0038] The support frame 401 is a triangular frame.

[0039] The anti-slip block 407 is a block with a rough bottom or is made of anti-slip materials such as rubber.

[0040] In use, the air bag 1 is attached to the test surface, and then the positioning device 408 is activated to adsorb and fix the assembly frame 404 in the carriage. The anti-slip slider 407 of the assembly frame 404 can ensure anti-slip contact with the carriage. Then, the support rod 405 is supported by the hinge structure, so that the anti-slip slider 407 of the support block 406 is also in contact with the carriage. The air compressor (not shown in the figure) can then be used to increase the pressure on the air bag 1. By squeezing the air bag 1, the air bag fixing frame 2 will be pushed and moved. Since the air bag fixing frame 2 is slidably mounted on the guide rail 402 of the assembly frame 404 through the support frame 401, the moving direction of the air bag fixing frame 2 is fixed, so that the sensor 3 can accurately measure the force value and reduce the error. When the force value reaches the set value, the loading is stopped and the deformation amount at this time is recorded. Or when the deformation amount exceeds the set value, the loading is stopped and the loading force value at this time is recorded. The test data of the carriage can then be obtained.

[0041] When the airbag mounting bracket 2 presses down on the sensor 3, the mounting bracket 404 will also be subjected to top pressure. At this time, the support rod 405 and support block 406, which are hinged to the mounting side of the airbag mounting bracket 2 in the opposite direction, together with the anti-slip block 407 at the bottom of the support block, will form the first layer of anti-slip and anti-tipping support. The positioning device 408 makes the mounting bracket 404 adhere to and squeeze the carriage. Together with the anti-slip block 407 at the bottom of the mounting bracket, it will make the mounting bracket 404 more difficult to slide and prevent it from tipping over under top pressure, forming the second layer of anti-slip and anti-tipping support. This ensures the stability of the mounting bracket during testing, prevents the device from moving during testing, and prevents the device from tipping over and affecting the fixation. At the same time, it also avoids fixing methods that affect the carriage structure, such as welding and locking to the carriage. When it is necessary to remove the equipment, simply release the adsorption of the positioning device 408, so that the mounting bracket 404 is freed from adsorption and squeezing, and the test device can be removed, which is convenient and quick.

[0042] Example 2:

[0043] Compared to the previous embodiments, the air bag fixing frame 2 and the assembly frame 404 described in this embodiment are both composed of multiple combination rods 40401, which are connected by locking. The combination rods 40401 are made of aluminum alloy, which allows the device to be easily disassembled and assembled, making it easy to move, transport and store. The rest of the structure and effect remain unchanged.

[0044] Example 3:

[0045] Compared to the previous embodiments, the positioning device 408 in this embodiment includes a body 40801, a cover plate 40802, a connecting rod 40803, a first elastic element 40804, a pressure plate 40805, a locking element 40806, a handle 40807, a linkage rod 40808, a battery 40809, an assembly block 40810, a through groove 40814, a second elastic element 40815, an electromagnet 40816, and an adsorption groove 40817. The bottom of the body 40801 is provided with an adsorption groove 40817. The electromagnet 40816 is disposed in the adsorption groove 40817 with its adsorption surface facing downward. The top of the electromagnet 40816 is fixedly connected to the linkage rod 40808 and the second elastic element 40815 is assembled between the electromagnet 40801 and the body 40801. The side end of the linkage rod 40808 is provided with a thread. The linkage rod 40808 passes through the body 40801 and the pressure plate 40805 at the top and is locked to the locking member 40806. The assembly block 40810 is fixed on the body 40801. The handle 40807 passes through the pressure plate 40805 and is locked to the assembly block 40810. The body 40801 is provided with a through groove 40814. The connecting rod 40803 passes through the through groove 40814 and is locked to the assembly frame 404 at both ends. A first elastic member 40804 is assembled between the pressure plate 40805 and the body 40801. A battery 40809 is assembled inside the body 40801 and is covered by a cover plate 40802. The battery 40809 is electrically connected to an electromagnet 40816. An anti-slip block 407 is also assembled at the bottom of the body 40801.

[0046] The first elastic element 40804 and the second elastic element 40815 are both compression springs.

[0047] In use, the starting and stopping of adsorption can be controlled by turning the electromagnet 40816 on and off. Before adsorption is started, the body 40801 of the device can slide on the connecting rod 40803 through the through groove 40814 to adjust the assembly position after adsorption, so as to ensure that the adsorption is in a suitable position and better prevent the assembly frame 404 from tipping over due to top pressure.

[0048] When the adsorption is initiated, the electromagnet 40816 will attract the carriage. At this time, the electromagnet 40816 will drive the locking member 40806 to descend via the linkage rod 40808, causing the locking member 40806 to move the pressure plate 40805 towards the machine body 40801. This compresses the first elastic member 40804, putting pressure on the machine body 40801. At this time, the connecting rod 40803, which is mounted through the through slot 40814, will also be pressed against the mounting frame 404, thus ensuring that the mounting frame 404 and the anti-slip block 407 at the bottom of the machine body 40801 are tightly fitted with the carriage, better preventing the mounting frame 404 from sliding during the test. Before the adsorption pressure, the device can also be locked by rotation. The locking position of component 40806 is used to adjust the top pressure of pressure plate 40805 on first elastic component 40804. The maximum adjustment limit allows pressure plate 40805 to press directly on machine body 40801 when pressing, ensuring sufficient pressure and avoiding overpressure. The first elastic component 40804 can also be replaced for pressure adjustment by releasing the locking component 40806 from the linkage rod 40808. At the same time, after electromagnet 40816 is attracted, it ensures that the vertical side will not move, thereby preventing the assembly frame 404 from being pried when pressed. Electromagnet 40816 itself can also provide a certain lateral pushing resistance, which can better ensure the stability of assembly frame 404 during use.

[0049] When the device needs to release the adsorption, the electromagnet 40816 can be turned off to release the adsorption fixation, so that the first elastic element 40804 presses the pressure plate 40805 to reset, which also releases the pressure of the first elastic element 40804 on the body 40801, thereby releasing the pressure of the connecting rod 40803 on the assembly frame 404. Then the test device can be moved and removed directly, which is convenient and quick, and avoids the need for welding and locking with the carriage, which affect the carriage structure.

[0050] When the electromagnet 40816 is reset by the force of the first elastic element 40804 after the adsorption is released, the setting of the second elastic element 40815 can also keep the electromagnet 40816 at a certain height, ensuring that the electromagnet 40816 can be attracted to the carriage within the distance range after startup, while the rest of the structure and effect remain unchanged.

[0051] Example 4:

[0052] Compared with the previous embodiment, the positioning device 408 in this embodiment further includes a pressure block 40812, which penetrates the top of the body 40801 and communicates with the top of the through groove 40814. The top of the pressure block 40812 is connected to the first elastic member 40804.

[0053] The linkage rod 40808 is clearance-fitted with the body 40801, the pressure block 40812 and the pressure plate 40805.

[0054] In use, the pressure of the first elastic element 40804 on the body 40801 will act on the pressure block 40812, so that when the pressure block 40812 presses against the body 40801, it can also press against the connecting rod 40803, which can ensure the stability of the body 40801 relative to the connecting rod 40803 when adsorption and fixing, and prevent the assembly frame 404 from sliding relative to the connecting rod 40803 when it is pressed against. The rest of the structure and effect remain unchanged.

[0055] Example 5:

[0056] Compared with the previous embodiment, the positioning device 408 in this embodiment further includes a positioning block 40813. The positioning block 40813 is located on the side of the pressure block 40812 adjacent to the through groove 40814, so that the pressure block 40812 can better stabilize the connecting rod 40803 through the positioning block 40813. The rest of the structure and effect remain unchanged.

[0057] Example 6:

[0058] Compared to the previous embodiments, the positioning block 40813 in this embodiment is a block with a rough bottom or made of anti-slip materials such as rubber, while the rest of the structure and effects remain unchanged.

[0059] Example 7:

[0060] Compared to the previous embodiments, the positioning device 408 in this embodiment further includes a positioning groove 40818. The positioning groove 40818 is evenly distributed on the top of the connecting rod 40803. The positioning block 40813 fits into the positioning groove 40818. The mechanical structure ensures that the body 40801 will not slide arbitrarily on the connecting rod 40803, resulting in better stability. The rest of the structure and effect remain unchanged.

[0061] Example 8:

[0062] Compared to the previous embodiments, the positioning device 408 in this embodiment further includes a bolt 40819, which is used to lock the pressure block 40812. By locking the pressure block 40812 with the bolt 40819, the sliding of the body 40801 on the connecting rod 40803 can be completely prevented. When adjustment is required, the locking of the bolt 40819 needs to be loosened before adjustment can be made, further improving stability. The rest of the structure and effect remain unchanged.

[0063] Example 9:

[0064] Compared to the previous embodiments, the positioning device 408 in this embodiment further includes a locking structure 40811. The locking structure 40811 consists of a mating protrusion and a groove. The protrusion and groove are respectively provided on the pressure plate 40805 and the locking member 40806. Combined with the rotation limit of the pressure plate 40805 after the handle 40807 passes through it, when the pressure plate 40805 and the locking member 40806 are pressed by the elastic force of the first elastic member 40804, since the pressure plate 40805 and the locking member 40806 are always in contact, even if the protrusion and groove are always mating, the pressure plate 40805 and the locking member 40806 will not rotate arbitrarily, and the rest of the structure and effect remain unchanged.

[0065] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0066] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0067] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0068] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel van body strength testing device, the structure of which includes an air bag (1), an air bag fixing frame (2), a sensor (3) and a support device (4), wherein the air bag fixing frame (2) is mounted on one side of the support device (4), and the air bag (1) is mounted on the side of the air bag fixing frame (2) away from the support device (4), and the sensor (3) is used to detect the force exerted by the air bag fixing frame (2) on the support device (4); characterized in that The support device (4) includes a support frame (401), a guide rail (402), a slider (403), an assembly frame (404), a support rod (405), a support block (406), an anti-slip block (407), and a positioning device (408). The guide rail (402) is fixed on the assembly frame (404). The support frame (401) is slidably assembled on the guide rail (402) via the slider (403). The support frame (401) is fixedly connected to the air bag fixing frame (2). A sensor (3) is mounted between the mounting frame (404) and the air bag fixing frame (2) along the sliding direction. The mounting frame (404) is hinged to one end of the support rod (405) on the side away from the air bag fixing frame (2). The other end of the support rod (405) is hinged to the support block (406). Anti-slip blocks (407) are mounted on the bottom of both the support block (406) and the mounting frame (404). The positioning device (408) is used for adsorption and compression fixing of the mounting frame (404) in the carriage.

2. A novel van body strength test device according to claim 1, characterized in that: The air bag fixing frame (2) and the assembly frame (404) are both composed of multiple combination rods (40401).

3. A novel van body strength test device according to claim 1, characterized in that: The positioning device (408) includes a body (40801), a cover plate (40802), a connecting rod (40803), a first elastic element (40804), a pressure plate (40805), a locking element (40806), a handle (40807), a linkage rod (40808), a battery (40809), an assembly block (40810), a through groove (40814), a second elastic element (40815), and an electromagnet (40816). The electromagnet (40816) is located in the adsorption tank (40817) with its adsorption surface facing downwards. The top of the electromagnet (40816) is fixedly connected to the linkage rod (40808) and a second elastic element (40815) is assembled between the electromagnet (40801) and the machine body (40801). A threaded groove is provided on the side end of the linkage rod (40808). The top of the rod (40808) passes through the body (40801) and the pressure plate (40805) and is locked with the locking element (40806). The assembly block (40810) is fixed on the body (40801). The handle (40807) passes through the pressure plate (40805) and is locked with the assembly block (40810). A through groove (40814) is provided on the body (40801), and the connecting rod (40803) passes through the through groove. (40814) The two ends of the rear end are locked to the assembly frame (404). The pressure plate (40805) and the body (40801) are equipped with a first elastic element (40804). The body (40801) is equipped with a battery (40809) and is sealed by a cover plate (40802). The battery (40809) is electrically connected to an electromagnet (40816). The bottom of the body (40801) is also equipped with an anti-slip block (407).

4. A novel van body strength test device according to claim 3, characterized in that: The positioning device (408) further includes a pressure block (40812), which penetrates the top of the body (40801) and communicates with the top of the through groove (40814). The top of the pressure block (40812) is connected to the first elastic member (40804).

5. A novel van body strength test device according to claim 4, characterized in that: The positioning device (408) further includes a positioning block (40813), which is located on the side of the pressure block (40812) adjacent to the through groove (40814).

6. A novel van body strength test device according to claim 5, characterized in that: The anti-slip block (407) and the positioning block (40813) are both blocks with rough surfaces on the bottom or made of anti-slip material.

7. The novel van body strength testing device according to claim 5, characterized in that: The positioning device (408) further includes a positioning groove (40818), which is evenly distributed on the top of the connecting rod (40803), and the positioning block (40813) fits into the positioning groove (40818).

8. A novel van body strength test device according to any one of claims 4 to 7, characterized in that: The positioning device (408) further includes a bolt (40819) for locking the pressure block (40812).

9. A novel van body strength test device according to claim 4, characterized in that: The linkage rod (40808) is clearance-fitted with the body (40801), the pressure block (40812), and the pressure plate (40805).

10. A novel van body strength test device according to claim 3, characterized in that: The positioning device (408) further comprises a locking structure (40811) which is composed of a convex block and a concave groove, which are respectively arranged on the pressing plate (40805) and the locking piece (40806).

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