A device for detecting the performance of a tailgate of a vehicle

By fixing the tailplate with a pressing and moving mechanism, the problem of tailplate shaking during strength testing is solved, improving safety and convenience, and facilitating testing in different locations.

CN224398992UActive Publication Date: 2026-06-23TIANJIN HUIJIA INTELLIGENT TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN HUIJIA INTELLIGENT TECH CO LTD
Filing Date
2025-09-09
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing technologies make it difficult to effectively secure the tailgate of a car, which may cause the tailgate to shake or move during strength testing, affecting the accuracy of the measurement and posing a safety hazard.

Method used

The device employs a pressing mechanism and a moving mechanism. The screw rod driven by the motor moves the sliding block and connecting rod to fix the tail plate. The moving mechanism facilitates the movement of the device through casters and a snap-fit ​​structure.

Benefits of technology

It effectively prevents tailplate swaying or swinging, improves safety, and enhances the convenience and stability of the device, making it easy to work anywhere.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of automobile tailgates, in particular to a performance detection device for an automobile tailgate, which comprises an operation table, the top of the operation table is provided with a top plate, the bottom of the operation table is fixedly provided with four supporting legs, the top of the operation table is provided with a pressing mechanism, the pressing mechanism comprises two supporting frames fixedly installed on the top of the operation table, a threaded rod is rotationally connected between the two supporting frames, a motor box is fixedly installed on one side of one of the two supporting frames, and a motor is fixedly installed on the inner wall of the motor box. By starting the motor, the threaded rod is driven to rotate, the outer side of the threaded rod is respectively provided with a thread and a reverse thread, so that the two sliding blocks are driven to move relative to each other, a plurality of connecting rods are linked to change the angle at the same time of moving, the pressing plate is driven to press down, the tailgate is fixed, and shaking or swinging is avoided, and collision with surrounding objects is avoided.
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Description

Technical Field

[0001] This application relates to the technical field of automobile tailgates, and in particular to a device for testing the performance of automobile tailgates. Background Technology

[0002] A vehicle tailgate is a hydraulic lifting and loading / unloading device installed at the rear of trucks and various vehicles. It is powered by the vehicle's battery and is widely used in many industries, including aerospace, military, fire fighting, postal services, finance, petrochemicals, commerce, food, pharmaceuticals, environmental protection, logistics, and manufacturing. As a vehicle loading and unloading tool, the tailgate can greatly improve the efficiency and convenience of loading and unloading. After the vehicle tailgate is manufactured, its rotational performance needs to be tested.

[0003] A search revealed Chinese Patent Publication No. CN111307427B, which discloses a device for testing the performance and durability of a car tailgate. The device includes a pressure block, a first spring, and a slider. When it is necessary to test the maximum load at the center position and the end of the car tailgate, the vertical distance between the bottom end of the sliding rod and the photoelectric sensor is adjusted so that the vertical distance between the bottom end of the sliding rod and the photoelectric sensor is the maximum value of the deformation of the car tailgate. The maximum load that the car tailgate can withstand within a reasonable deformation range is measured by the hydraulic press body.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: it is difficult to clamp the tailplate. When the tailplate is subjected to strength testing, if it is not clamped, the tailplate may move, sway, or undergo unexpected deformation patterns under the action of loading force. This means that the measured deformation amount cannot truly reflect the deformation of the tailplate material and structure itself under normal constraints. Furthermore, it may sway or swing, potentially colliding with surrounding objects and causing collision injuries to nearby personnel. Utility Model Content

[0005] To address the problems mentioned in the background section, this application provides a device for testing the performance of a vehicle tailgate.

[0006] This application provides a device for testing the performance of a vehicle tailgate, including an operating platform. A top plate is provided on the top of the operating platform, and four support legs are fixedly installed on the bottom of the operating platform. A pressing mechanism is provided on the top of the operating platform, and a moving mechanism is provided between the four support legs. The moving mechanism includes casters for movement, and a testing mechanism is provided at the bottom of the top plate. The testing mechanism includes a testing block for monitoring.

[0007] The pressing mechanism includes two support frames fixedly installed on the top of the operating table. A threaded rod is rotatably connected between the two support frames. A motor box is fixedly installed on one side of one of the two support frames. A motor is fixedly installed on the inner wall of the motor box. The output end of the motor is connected to the threaded rod.

[0008] Optionally, two driven rods are fixedly installed on the inner wall between the two support frames, and the two driven rods are arranged opposite to each other. Two sliding blocks are threadedly connected to the outer wall of the threaded rod, and the two sliding blocks are slidably connected to the driven rod. A limit block is fixedly installed on the outer wall of the threaded rod.

[0009] Optionally, the bottom of the two sliding blocks is hinged to two connecting rods, which are symmetrically arranged between the two connecting rods, and the bottom ends of the two connecting rods are hinged to a pressure plate.

[0010] Optionally, the moving mechanism includes a hinge plate one hinged to one side of two of the four supporting legs, and a hinge plate two hinged to the other side of two of the four supporting legs. Locking posts are fixedly installed on the left and right sides of the hinge plate two, and locking blocks are rotatably connected to both sides of the hinge plate one. The locking blocks are engaged with the locking posts.

[0011] Optionally, mounting blocks are fixedly installed on both sides of the hinge plate, a spring is fixedly connected to one side of the mounting block, and the other end of the spring is connected to the snap-fit ​​block.

[0012] Optionally, connecting strips are fixedly installed on the top of the two snap-fit ​​blocks, and the casters are fixedly installed on the bottom of the first hinge plate and the second hinge plate, respectively.

[0013] Optionally, the detection mechanism includes a sliding groove formed on the top of the top plate, a hydraulic rod fixedly installed at the bottom of the top plate, the detection block being connected to the output end of the hydraulic rod, a stabilizing rod fixedly installed on the top of the detection block, the stabilizing rod being slidably connected to the sliding groove, and a numerical value fixedly installed on the top of the stabilizing rod.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. This utility model, through the setting of components such as a support frame, motor box, motor, driven rod, threaded rod, sliding block, connecting rod, and pressure plate, etc., drives the threaded rod to rotate when the motor is started. Because the threaded rod has threads and reverse threads on its outer side, it drives two sliding blocks to move relative to each other. At the same time, multiple connecting rods are linked to change angles, thereby driving the pressure plate to press down and fix the tail plate, preventing shaking or swinging and collisions with surrounding objects, and preventing collision injuries to nearby personnel, effectively improving the safety of workers.

[0016] 2. This utility model, through the setting of components such as hinge plate one, hinge plate two, mounting block, spring, snap block, snap post, connecting strip, and caster wheel, allows the device to be moved by manually pressing the connecting strip downwards, causing the snap block to contact and squeeze the snap post, thereby limiting its movement. At the same time as manually pressing, the caster wheel also contacts the ground, thereby lifting the device off the ground and enabling it to move, effectively improving convenience. Manually pressing the connecting strip compresses the spring, causing the connecting strip to deform and disengage from the snap block, which in turn lifts the caster wheel off the ground for fixation, effectively improving stability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0018] Figure 2 This is a cross-sectional structural schematic diagram of the pressing mechanism in the embodiments of this application;

[0019] Figure 3 This is an embodiment of the present application. Figure 2 Enlarged view of structure A in the image;

[0020] Figure 4 This is a cross-sectional structural diagram of the testing mechanism in the embodiments of this application.

[0021] Reference numerals: 1. Operating platform; 10. Top plate; 11. Support leg; 2. Pressing mechanism; 201. Support frame; 202. Motor box; 203. Motor; 204. Driven rod; 205. Threaded rod; 206. Sliding block; 207. Connecting rod; 208. Pressing plate; 3. Moving mechanism; 301. Hinge plate one; 302. Hinge plate two; 303. Mounting block; 304. Spring; 305. Snap-fit ​​block; 306. Snap-fit ​​post; 307. Connecting strip; 308. Caster wheel; 4. Detection mechanism; 41. Sliding groove; 42. Hydraulic rod; 43. Detection block; 44. Stabilizing rod. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 —4. This application will be described in further detail.

[0023] This application discloses a device for testing the performance of a car tailgate.

[0024] like Figure 1 As shown, a device for testing the performance of a car tailgate includes an operating platform 1, a top plate 10 on the top of the operating platform 1, four support legs 11 fixedly installed at the bottom of the operating platform 1, and a pressing mechanism 2 on the top of the operating platform 1.

[0025] The pressing mechanism 2 includes two support frames 201 fixedly installed on the top of the operating table 1. A threaded rod 205 is rotatably connected between the two support frames 201. A motor box 202 is fixedly installed on one side of one of the two support frames 201. A motor 203 is fixedly installed on the inner wall of the motor box 202. The output end of the motor 203 is connected to the threaded rod 205. The installed motor box 202 is used to protect the motor 203 and prevent the motor 203 from being damaged by external impacts or dust.

[0026] Please see Figure 2 Two driven rods 204 are fixedly installed on the inner wall between the two support frames 201. The two driven rods 204 are arranged opposite to each other. Two sliding blocks 206 are threadedly connected to the outer wall of the threaded rod 205. The two sliding blocks 206 are slidably connected to the driven rods 204. A limit block 209 is fixedly installed on the outer wall of the threaded rod 205. The driven rods 204 are used to maintain balance when the sliding blocks 206 move, prevent the threaded rod 205 from rotating, and drive the sliding blocks 206 to rotate together.

[0027] Please see Figure 2 Two sliding blocks 206 are hinged to two connecting rods 207 at their bottoms. The two connecting rods 207 are symmetrically arranged. The bottom ends of the two connecting rods 207 are hinged to a pressure plate 208. By starting the motor 203, the threaded rod 205 is driven to rotate. Since the outer side of the threaded rod 205 is provided with threads and reverse threads respectively, it drives the two sliding blocks 206 to move relative to each other. At the same time, the angle of the multiple connecting rods 207 is changed, thereby driving the pressure plate 208 to press down, so as to fix the tail plate and prevent shaking or swinging, collision with surrounding objects, and collision injury to nearby personnel. This effectively improves the safety of workers. The installed pressure plate 208 is used to contact and press the tail plate.

[0028] A moving mechanism 3 is provided between the four supporting legs 11;

[0029] Please see Figure 3The moving mechanism 3 includes a hinge plate 301 hinged to one side of two of the four support legs 11, and a second hinge plate 302 hinged to the other side of the other two of the four support legs 11. Locking posts 306 are fixedly installed on the left and right sides of the second hinge plate 302. Locking blocks 305 are rotatably connected to both sides of the first hinge plate 301. The locking blocks 305 are locked to the locking posts 306. By manually pressing down the connecting strip 307, the locking blocks 305 and locking posts 306 come into contact and are pressed together, thus limiting the movement. Simultaneously, the universal wheels 308 contact the ground, causing the device to detach from the ground, thus enabling movement of the device and effectively improving convenience.

[0030] Please see Figure 3 Mounting blocks 303 are fixedly installed on both sides of the hinge plate 301. A spring 304 is fixedly connected to one side of the mounting block 303. The other end of the spring 304 is connected to the snap-fit ​​block 305. The spring 304 is used to generate tension to reset the snap-fit ​​block 305 for easy snap-fit.

[0031] Please see Figure 3 Connecting strips 307 are fixedly installed on the top of the two snap-fit ​​blocks 305. The casters 308 are fixedly installed on the bottom of the first hinge plate 301 and the second hinge plate 302 respectively. By manually turning the connecting strips 307, the springs 304 are compressed, thereby deforming the connecting strips 307 and disengaging them from the snap-fit ​​blocks 305. This causes the casters 308 to detach from the ground and be fixed, effectively improving stability.

[0032] The moving mechanism 3 includes casters 308 for movement, and a detection mechanism 4 is provided at the bottom of the top plate 10. The detection mechanism 4 includes a detection block 43 for monitoring.

[0033] Please see Figure 4 The testing mechanism 4 includes a sliding groove 41 formed on the top of the top plate 10. A hydraulic rod 42 is fixedly installed at the bottom of the top plate 10. The testing block 43 is connected to the output end of the hydraulic rod 42. A stabilizing rod 44 is fixedly installed on the top of the testing block 43. The stabilizing rod 44 is slidably connected to the sliding groove 41. A value meter 45 is fixedly installed on the top of the stabilizing rod 44. By activating the hydraulic rod 42, the testing block 43 is driven to contact the tail plate, thereby applying pressure and realizing the strength test of the tail plate. The value meter 45 is used to display the pressure value detected by the testing block 43, which is convenient for the staff to observe and test the strength of the tail plate. This is the prior art and will not be described in detail. The stabilizing rod 44 slides inside the sliding groove 41 to maintain the balance during lifting.

[0034] The installed pressing mechanism 2 is used to fix the tail plate to prevent shaking or swaying, and the installed moving mechanism 3 is used to improve the convenience of the device, allowing the device to be moved so that it can work anywhere.

[0035] The implementation principle of a vehicle tailgate performance testing device according to an embodiment of this application is as follows: A pressing mechanism 2 is installed to fix the tailgate, preventing shaking or swaying. A moving mechanism 3 is installed to improve the device's convenience, allowing it to be moved for operation anywhere. A motor box 202 is installed to protect the motor 203 from damage caused by external impacts or dust. A driven rod 204 is installed to maintain balance when the sliding block 206 moves, preventing the threaded rod 205 from rotating and causing the sliding block 206 to rotate simultaneously. Starting the motor 203 causes the threaded rod 205 to rotate. Because the threaded rod 205 has threads and reverse threads on its outer side, it causes the two sliding blocks 206 to move relative to each other. Simultaneously, multiple connecting rods 207 are linked to change angles, thereby causing the pressure plate 208 to press down, fixing the tailgate and preventing shaking or swaying, collisions with surrounding objects, and injuries to nearby personnel. This effectively improves the safety of the workers. 08 is used for contact and holding with the tail plate. By manually turning the connecting bar 307 downwards, the locking block 305 and the locking post 306 come into contact and are pressed together, thus limiting the movement. At the same time as turning the bar, the caster wheel 308 contacts the ground, thereby lifting the device off the ground and enabling it to move, effectively improving convenience. The spring 304 is used to generate tension to reset the locking block 305 for easy locking. By manually turning the connecting bar 307, the spring 304 is compressed, thus the connecting bar 307... The deformation causes the locking block 305 to disengage, thereby causing the caster wheel 308 to detach from the ground and be fixed, effectively improving stability. By activating the hydraulic rod 42, the detection block 43 is brought into contact with the tail plate, thereby applying pressure and realizing the strength test of the tail plate. The installed numerical device 45 is used to display the pressure value detected by the detection block 43, which is convenient for the staff to observe and test the strength of the tail plate. This is existing technology and will not be described in detail. The stabilizer rod 44 slides inside the sliding groove 41 to maintain balance during lifting.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for testing the performance of a vehicle tailgate, comprising an operating platform (1), characterized in that: The top of the operating table (1) is provided with a top plate (10), and four support legs (11) are fixedly installed at the bottom of the operating table (1). The top of the operating table (1) is provided with a pressing mechanism (2), and a moving mechanism (3) is provided between the four support legs (11). The moving mechanism (3) includes casters (308) for movement. The bottom of the top plate (10) is provided with a detection mechanism (4), and the detection mechanism (4) includes a detection block (43) for monitoring. The pressing mechanism (2) includes two support frames (201) fixedly installed on the top of the operating table (1). A threaded rod (205) is rotatably connected between the two support frames (201). A motor box (202) is fixedly installed on one side of one of the two support frames (201). A motor (203) is fixedly installed on the inner wall of the motor box (202). The output end of the motor (203) is connected to the threaded rod (205).

2. The device for testing the performance of a vehicle tailgate according to claim 1, characterized in that: Two driven rods (204) are fixedly installed on the inner wall between the two support frames (201), and the two driven rods (204) are arranged opposite to each other. Two sliding blocks (206) are threadedly connected to the outer wall of the threaded rod (205), and the two sliding blocks (206) are slidably connected to the driven rods (204). A limit block (209) is fixedly installed on the outer wall of the threaded rod (205).

3. The device for testing the performance of a vehicle tailgate according to claim 2, characterized in that: Two connecting rods (207) are hinged to the bottom of the two sliding blocks (206), and the two connecting rods (207) are symmetrically arranged. A pressure plate (20) is hinged to the bottom end of the two connecting rods (207).

4. The device for testing the performance of a vehicle tailgate according to claim 1, characterized in that: The moving mechanism (3) includes a hinge plate (301) hinged to one side of two of the four support legs (11), and a hinge plate (302) hinged to the other side of two of the four support legs (11). A locking post (306) is fixedly installed on the left and right sides of the hinge plate (302). A locking block (305) is rotatably connected to both sides of the hinge plate (301), and the locking block (305) is locked to the locking post (306).

5. The device for testing the performance of a vehicle tailgate according to claim 4, characterized in that: Mounting blocks (303) are fixedly installed on both sides of the hinge plate (301). A spring (304) is fixedly connected to one side of the mounting block (303), and the other end of the spring (304) is connected to the snap-fit ​​block (305).

6. The device for testing the performance of a vehicle tailgate according to claim 5, characterized in that: Connecting strips (307) are fixedly installed on the top of the two snap-fit ​​blocks (305), and the universal wheels (308) are fixedly installed on the bottom of the first hinge plate (301) and the second hinge plate (302) respectively.

7. The device for testing the performance of a vehicle tailgate according to claim 1, characterized in that: The detection mechanism (4) includes a sliding groove (41) formed on the top of the top plate (10), a hydraulic rod (42) fixedly installed at the bottom of the top plate (10), the detection block (43) being connected to the output end of the hydraulic rod (42), a stabilizing rod (44) fixedly installed on the top of the detection block (43), the stabilizing rod (44) being slidably connected to the sliding groove (41), and a value meter (45) fixedly installed on the top of the stabilizing rod (44).