Device and method for detecting strength of handle of trailer in motor house

Abstract

The invention relates to a motor and living trailer handle strength detection device and method, the motor and living trailer handle strength detection device comprises a supporting bottom plate, a lifting mechanism, a rotating mechanism, a left-right translation mechanism and a loading mechanism, and the lifting mechanism is mounted on the supporting bottom plate; the rotating mechanism comprises a supporting plate and a rotating driving mechanism, the supporting plate is rotationally installed on the lifting mechanism, the rotating driving mechanism is inserted into the lifting mechanism, and the rotating driving mechanism is configured to drive the supporting plate to rotate; the left-right translation mechanism is mounted on the rotating mechanism; the loading mechanism is mounted on the left-right translation mechanism, a handle connecting structure is mounted on one side of the loading mechanism, and the loading mechanism is configured to drive the handle connecting structure to move front and back and perform a loading test. The handle connecting structure is adjusted in a multi-angle mode through a plurality of mechanisms located on the supporting bottom plate, the strength detection device for the handle of the motor home trailer can conduct strength testing in a large range, and the technical problem that in the related technology, the loading direction of test equipment for the moving handle of the motor home trailer is difficult to adjust is solved.

Description

Technical Field

[0001] This application relates to the technical field of vehicle detection, and particularly relates to a strength detection device and method for the handle of a trailer for living. Background Art

[0002] Currently, according to the standard requirements of GBT22551-2023 for the living requirements of living vehicles, a trailer for living with a gross mass less than or equal to 2000 kg should be equipped with four moving handles, one at the front and one at the back on each side. If the maximum allowable gross mass of the trailer for living does not exceed 750 kg, only one moving handle needs to be equipped at the front of each of the left and right sides. The horizontal operation space of each moving handle should not be less than 30 mm * 120 mm. Generally, a special test equipment is required to conduct a strength test on the moving handle of the trailer for living. After the test, neither the moving handle nor its fixing device should have permanent deformation or looseness. This standard puts forward requirements for the strength of the moving handle of the trailer for living. Generally, the test equipment for the moving handle of the trailer for living is adjusted in two directions, with effective adjustment angles, but it cannot adapt to the moving handles of different types of trailers for living, and it is prone to displacement during the loading process, affecting the loading stability.

[0003] In the related art, for the test equipment of the moving handle of the trailer for living, there are difficulties in adjusting the loading direction and poor stability in continuous loading, and it is impossible to conduct strength tests on the moving handles of different types of trailers for living.

[0004] Therefore, it is necessary to design a new strength detection device for the handle of the trailer for living to overcome the above problems. Summary of the Invention

[0005] This application provides a strength detection device and method for the handle of a trailer for living, which can solve the technical problems in the related art that for the test equipment of the moving handle of the trailer for living, there are difficulties in adjusting the loading direction, poor stability in continuous loading, and it is impossible to conduct strength tests on the moving handles of different types of trailers for living.

[0006] In a first aspect, an embodiment of this application provides a strength detection device for the handle of a trailer for living, which includes: a support bottom plate, a lifting mechanism, a rotating mechanism, a left-right translation mechanism, and a loading mechanism. The lifting mechanism is installed on the support bottom plate; the rotating mechanism includes a support plate and a rotation driving mechanism. The support plate is rotatably installed on the lifting mechanism and connected to the rotation driving mechanism. The rotation driving mechanism is inserted into the lifting mechanism, and the rotation driving mechanism is configured to drive the support plate to rotate; the left-right translation mechanism is installed on the support plate; the loading mechanism is installed on the left-right translation mechanism. A handle connection structure is installed on one side of the loading mechanism, and a force sensor is provided on the handle connection structure. The loading mechanism is configured to drive the handle connection structure to move back and forth and conduct a loading test.

[0007] In combination with the first aspect, in one embodiment, the rotational drive mechanism includes a first servo motor and a connecting rod. The first servo motor is inserted into the lifting mechanism, the connecting rod is fixed to the support plate, and the first servo motor is configured to drive the connecting rod to rotate.

[0008] In combination with the first aspect, in one embodiment, the left - right translation mechanism includes a left - right translation plate and a second servo motor. The left - right translation plate is slidably disposed on the support plate. The second servo motor is connected to a first lead screw, and a fixed block is slidably disposed on the first lead screw. The fixed block is fixed to the left - right translation plate, and the second servo motor is configured to drive the first lead screw to rotate.

[0009] In combination with the first aspect, in one embodiment, the left - right translation mechanism further includes a first slide rail. The first slide rail is fixed to the support plate, and a first slider is slidably disposed on the first slide rail. The first slider is fixed to the left - right translation plate.

[0010] In combination with the first aspect, in one embodiment, the loading mechanism includes a front - rear translation mechanism and a servo cylinder. The front - rear translation mechanism is slidably disposed on the left - right translation mechanism, and the servo cylinder is configured to drive the front - rear translation mechanism to move forward and backward.

[0011] In combination with the first aspect, in one embodiment, the front - rear translation mechanism includes a front - rear translation frame and a second slide rail. One side of the front - rear translation frame is connected to the servo cylinder through a telescopic rod, and a handle connection structure is installed on the other side of the front - rear translation frame. The second slide rail is fixed to the left - right translation mechanism, and a second slider is slidably disposed on the second slide rail. The second slider is fixed to the front - rear translation frame.

[0012] In combination with the first aspect, in one embodiment, the lifting mechanism includes a second lead screw and a bracket. The second lead screw is installed on the support bottom plate, the brackets are fixed around the support bottom plate, a support platform is slidably disposed on the brackets, the support platform is threadedly connected to the second lead screw, and the second lead screw is connected to a third servo motor. The third servo motor is configured to drive the second lead screw to rotate.

[0013] In combination with the first aspect, in one embodiment, a third slide rail is provided inside the bracket, a third slider is slidably disposed on the third slide rail, and the third slider is fixed to the support platform.

[0014] In combination with the first aspect, in one embodiment, a plurality of universal wheels are provided at the bottom of the support bottom plate.

[0015] In the second aspect, an embodiment of the present application provides a method for detecting the strength of a handle of a travel trailer, which includes the following steps:

[0016] Use the lifting mechanism to move the handle connection structure to a position level with the trailer moving handle, then use the rotating mechanism to rotate the handle connection structure to a set angle, then use the left - right translation mechanism to move the handle connection structure to a position directly facing the trailer moving handle, and finally use the loading mechanism to move the handle connection structure to a position connected to the trailer moving handle;

[0017] Use the loading mechanism to conduct a loading test on the trailer moving handle, end the loading test after the set loading time, and observe the deformation of the trailer moving handle.

[0018] The beneficial effects brought by the technical solution provided by the embodiment of the present application include:

[0019] By setting a lifting mechanism on the support base plate, the handle connection structure can be adjusted to a position level with the trailer moving handle. By setting a rotating mechanism on the lifting mechanism, the handle connection structure can be adjusted to a set angle. By setting a left - right translation mechanism on the rotating mechanism, the handle connection structure can be adjusted to a position directly facing the trailer moving handle. By setting a loading mechanism on the rotating mechanism, the handle connection structure can be adjusted to a position connected to the trailer moving handle and conduct a loading test. By multiple mechanisms located on the support base plate, the handle connection structure can be adjusted at multiple angles, enabling the strength detection device for the trailer moving handle of the recreational vehicle to conduct strength tests within a large range and adapt to the trailer moving handles of different types of recreational vehicles. During the loading test, it is not necessary to move the strength detection device for the trailer moving handle of the recreational vehicle, solving the technical problems in the related art that the test equipment for the trailer moving handle of the recreational vehicle has difficulties in adjusting the loading direction, poor stability in continuous loading, and inability to conduct strength tests for the trailer moving handles of different types of recreational vehicles. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of a strength detection device for a trailer moving handle provided by an embodiment of the present application;

[0022] Figure 2 It is a side view of a strength detection device for a trailer moving handle provided by an embodiment of the present application;

[0023] Figure 3 It is a schematic structural diagram of the rotating mechanism, left - right translation mechanism and loading mechanism provided by an embodiment of the present application;

[0024] Figure 4 For Figure 3Exploded view;

[0025] Figure 5 It is a schematic diagram of the principle of load direction switching in the loading test provided by the embodiment of the present application. (a) is a schematic diagram of the handle connection structure disengaging from the trailer moving handle, (b) is a schematic diagram of the handle connection structure rotating 60°, (c) is a schematic diagram of the handle connection structure moving to the right, and (d) is a schematic diagram of the handle connection structure moving forward.

[0026] In the figure: 1. Support base plate; 2. Lifting mechanism; 21. Second lead screw; 22. Bracket; 23. Support platform; 24. Third servo motor; 25. Third slide rail; 26. Third slider; 3. Rotating mechanism; 31. Support plate; 32. Rotating drive mechanism; 321. First servo motor; 322. Connecting rod; 4. Left and right translation mechanism; 41. Left and right translation plate; 42. Second servo motor; 43. First lead screw; 44. Fixed block; 45. First slide rail; 46. First slider; 5. Loading mechanism; 51. Front and back translation mechanism; 511. Front and back translation frame; 512. Second slide rail; 513. Telescopic rod; 514. Second slider; 52. Servo cylinder; 6. Handle connection structure; 7. Force sensor; 8. Universal wheel. Detailed implementation manners

[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0028] The embodiment of the present application provides a strength detection device and detection method for a trailer moving handle, which can solve the technical problems that the test equipment for the trailer moving handle has difficulties in adjusting the loading direction, poor stability in continuous loading, and cannot perform strength tests on different types of trailer moving handles.

[0029] See Figures 1-4As shown in the figure, an embodiment of the present application provides a strength detection device for a trailer handle, which includes: a support base plate 1, a lifting mechanism 2, a rotating mechanism 3, a left - right translation mechanism 4, and a loading mechanism 5. The lifting mechanism 2 is installed on the support base plate 1; the rotating mechanism 3 includes a support plate 31 and a rotation driving mechanism 32. The support plate 31 is rotatably installed on the lifting mechanism 2 and connected to the rotation driving mechanism 32. The rotation driving mechanism 32 is inserted into the lifting mechanism 2, and the rotation driving mechanism 32 is configured to drive the support plate 31 to rotate; the left - right translation mechanism 4 is installed on the support plate 31; the loading mechanism 5 is installed on the left - right translation mechanism 4. A handle connection structure 6 is installed on one side of the loading mechanism 5, and a force sensor 7 is provided on the handle connection structure 6. The loading mechanism 5 is configured to drive the handle connection structure 6 to move back and forth and perform a loading test.

[0030] In this embodiment, the lifting mechanism 2 is used to adjust the height of the handle connection structure 6, the rotating mechanism 3 is used to adjust the angle of the handle connection structure 6, the left - right translation mechanism 4 is used to adjust the left - right position of the handle connection structure 6, the loading mechanism 5 is used to adjust the front - back position of the handle connection structure 6, the handle connection structure 6 is used to connect the trailer handle of the trailer. The handle connection structure 6 can be replaced according to the shape of the trailer handle to ensure that the end of the handle connection structure 6 is adapted to the trailer handle. The left - right translation mechanism 4 and the loading mechanism 5 are installed on the support plate 31 from bottom to top in sequence. By using the lifting mechanism 2, the rotating mechanism 3, the left - right translation mechanism 4, and the loading mechanism 5 in cooperation, the direction of the handle connection structure 6 can be adjusted within a large range and a loading test can be performed, so that the strength detection device for the trailer handle is adapted to trailer handles of different types of trailers. During the loading test, there is no need to move the strength detection device for the trailer handle, which improves the loading stability. The strength detection device for the trailer handle has a simple structure, is easy to operate, and has strong adaptability. In other embodiments, the angle of the handle connection structure 6 can be adjusted by manually adjusting the support plate 31.

[0031] In this embodiment, by arranging the lifting mechanism 2 on the support base plate 1, the handle connection structure 6 can be adjusted to a position level with the trailer moving handle. By arranging the rotating mechanism 3 on the lifting mechanism 2, the handle connection structure 6 can be adjusted to a set angle. By arranging the left and right translation mechanism 4 on the rotating mechanism 3, the handle connection structure 6 can be adjusted to a position directly facing the trailer moving handle. By arranging the loading mechanism 5 on the rotating mechanism 3, the handle connection structure 6 can be adjusted to a position for connecting with the trailer moving handle and a loading test can be carried out. By means of multiple mechanisms located on the support base plate 1, the handle connection structure 6 can be adjusted at multiple angles, enabling the strength detection device for the trailer moving handle to conduct strength tests within a large range and be adaptable to trailer moving handles of different categories of trailers. During the loading test, it is not necessary to move the strength detection device for the trailer moving handle, solving the technical problems in the related art that the test equipment for the trailer moving handle has difficulties in adjusting the loading direction, poor stability in continuous loading, and inability to conduct strength tests for trailer moving handles of different categories of trailers.

[0032] Further, as shown in Figure 3 and Figure 4 In some embodiments, the rotation drive mechanism 32 includes a first servo motor 321 and a connecting rod 322. The first servo motor 321 is inserted into the lifting mechanism 2, the connecting rod 322 is fixed to the support plate 31, and the first servo motor 321 is configured to drive the connecting rod 322 to rotate.

[0033] In this embodiment, the first servo motor 321 drives the connecting rod 322 to rotate, enabling the support plate 31 to rotate 360°. The rotation mechanism 3 further includes a locking mechanism for preventing external forces from damaging the strength detection device for the trailer moving handle.

[0034] Further, as shown in Figure 3 and Figure 4 In some embodiments, the left and right translation mechanism 4 includes a left and right translation plate 41 and a second servo motor 42. The left and right translation plate 41 is slidably arranged on the support plate 31. The second servo motor 42 is connected to a first lead screw 43, and a fixed block 44 is slidably arranged on the first lead screw 43. The fixed block 44 is fixed to the left and right translation plate 41, and the second servo motor 42 is configured to drive the first lead screw 43 to rotate.

[0035] In this embodiment, a backing plate is clamped between the support plate 31 and the support platform 23. The support plate 31 is in contact with the backing plate, and a lubricating oil is coated on the backing plate. The first lead screw 43 is threadedly connected to the fixed block 44. The second servo motor 42 drives the first lead screw 43 to rotate, so that the left - right translation plate 41 moves along the axis direction of the first lead screw 43 to adjust the left - right position of the handle connection structure 6. In other embodiments, the left - right translation plate 41 can be manually adjusted to adjust the left - right position of the handle connection structure 6.

[0036] Further, as shown in Figure 3 and Figure 4 In some embodiments, the left - right translation mechanism 4 further includes a first slide rail 45 fixed to the support plate 31. A first slider 46 is slidably disposed on the first slide rail 45, and the first slider 46 is fixed to the left - right translation plate 41.

[0037] In this embodiment, the second servo motor 42 drives the first lead screw 43 to rotate, so that the left - right translation plate 41 moves left - right along the first slide rail 45 and drives the handle connection structure 6 located in the loading mechanism 5 to move left - right, protecting the second servo motor 42 from being damaged by a large lateral force.

[0038] Further, as shown in Figure 3 and Figure 4 In some embodiments, the loading mechanism 5 includes a front - rear translation mechanism 51 and a servo cylinder 52. The front - rear translation mechanism 51 is slidably disposed on the left - right translation mechanism 4, and the servo cylinder 52 is configured to drive the front - rear translation mechanism 51 to move back and forth.

[0039] In this embodiment, the front - rear translation mechanism 51 is connected to the handle connection structure 6. The servo cylinder 52 drives the front - rear translation mechanism 51 to move back and forth, so that the handle connection structure 6 moves back and forth, and the servo cylinder 52 also provides a loading force.

[0040] Further, as shown in Figure 3 and Figure 4 In some embodiments, the front - rear translation mechanism 51 includes a front - rear translation frame 511 and a second slide rail 512. One side of the front - rear translation frame 511 is connected to the servo cylinder 52 through a telescopic rod 513. The other side of the front - rear translation frame 511 is installed with the handle connection structure 6. The second slide rail 512 is fixed to the left - right translation mechanism 4. A second slider 514 is slidably disposed on the second slide rail 512, and the second slider 514 is fixed to the front - rear translation frame 511.

[0041] In this embodiment, the second slide rail 512 is fixed to the left and right translation plate 41. The telescopic rod 513 is detachably installed on the servo cylinder 52. The servo cylinder 52 drives the telescopic rod 513 to move back and forth, so that the front and back translation frame 511 moves back and forth along the second slide rail 512, and drives the handle connection structure 6 to move back and forth, protecting the servo cylinder 52 from being damaged by large lateral forces. In other embodiments, the front and back position of the handle connection structure 6 can be adjusted by manually adjusting the front and back translation frame 511.

[0042] Further, referring to Figure 1 and Figure 2 As shown, in some embodiments, the lifting mechanism 2 includes a second lead screw 21 and a bracket 22. The second lead screw 21 is installed on the support base plate 1. The bracket 22 is fixed around the support base plate 1. A support platform 23 is slidably provided on the bracket 22. The support platform 23 is threadedly connected to the second lead screw 21. The second lead screw 21 is connected to a third servo motor 24, and the third servo motor 24 is configured to drive the second lead screw 21 to rotate.

[0043] In this embodiment, the rotating mechanism 3, the left and right translation mechanism 4, and the loading mechanism 5 are sequentially installed on the support platform 23 from bottom to top. The first servo motor 321 is inserted into the support platform 23. The first servo motor 321, the second servo motor 42, the third servo motor 24, and the servo cylinder 52 are all controlled by a controller. The controller can display the rotation angle of the rotating mechanism 3, the displacement of the left and right translation mechanism 4 and the front and back translation mechanism 51, as well as the value and loading time of the load applied by the loading mechanism 5 in real time. The third servo motor 24 drives the second lead screw 21 to rotate, and drives the support platform 23 to move along the axis direction of the lead screw to adjust the height of the handle connection structure 6.

[0044] Further, referring to Figure 1 and Figure 2 As shown, in some embodiments, a third slide rail 25 is provided on the inner side of the bracket 22. A third slider 26 is slidably provided on the third slide rail 25. The third slider 26 is fixed to the support platform 23.

[0045] In this embodiment, the third servo motor 24 drives the second lead screw 21 to rotate, so that the support platform 23 moves up and down along the third slide rail 25, and drives the handle connection structure 6 located on the support platform 23 to move up and down.

[0046] Further, referring to Figure 1 and Figure 2 As shown, in some embodiments, a plurality of universal wheels 8 are provided at the bottom of the support base plate 1.

[0047] In this embodiment, the supporting bottom plate 1 can be set as a rectangle, and universal wheels 8 are arranged at the four corners of the supporting bottom plate 1. A fixing device is provided on one side of each universal wheel 8. During the preparation stage of the loading test, the strength detection device for the trailer handle is moved near the trailer handle, and the strength detection device for the trailer handle is fixed at a set position.

[0048] See Figure 5 As shown, an embodiment of the present application provides a method for detecting the strength of a trailer handle, which includes the following steps:

[0049] First step: Use the lifting mechanism 2 to move the handle connection structure 6 to a position at the same height as the trailer handle, then use the rotating mechanism 3 to rotate the handle connection structure 6 to a set angle, then use the left-right translation mechanism 4 to move the handle connection structure 6 to a position directly opposite to the trailer handle, and finally use the loading mechanism 5 to move the handle connection structure 6 to a position connected to the trailer handle.

[0050] In this embodiment, during the test preparation stage, the test vehicle is parked at a set position, and the strength detection device for the trailer handle is moved near the trailer handle of the test vehicle. The direction of the strength detection device for the trailer handle is adjusted so that the handle connection structure 6 is perpendicular to the plane where the trailer handle is located. The strength detection device for the trailer handle is fixed in place using the fixing device. The handle connection structure 6 is moved to a position at the same height as the trailer handle using the lifting mechanism 2. Demonstratively, the connection point between the handle connection structure 6 and the trailer handle is set as point A. The handle connection structure 6 is rotated 60° to the left using the rotating mechanism 3, and then the handle connection structure 6 is moved using the left-right translation mechanism 4 until point A is on the axis of the trailer handle and the trailer handle is on the axis of the handle connection structure 6. Then, the end of the handle connection structure 6 is intersected with point A using the loading mechanism 5, and the handle connection structure 6 is fixed to the trailer handle. At this time, the loading point is located at point A. The cooperation of the rotating mechanism 3, the left-right translation mechanism 4, and the loading mechanism 5 can achieve a large range of adjustment of the direction of the handle connection structure 6.

[0051] Second step: Use the loading mechanism 5 to conduct a loading test on the trailer handle, end the loading test after a set loading time, and observe the deformation of the trailer handle.

[0052] In this embodiment, demonstratively, the servo electric cylinder 52 applies a loading force of 1200 N to the trailer handle, and the set loading time is set to 15 minutes. After the loading test ends, observe the deformation of the trailer handle. If the trailer handle does not show deformation, the loading test in the next direction can be carried out.

[0053] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0054] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0055] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A caravan trailer handle strength detection device, characterized in that: It includes: Supporting base plate (1); A lifting mechanism (2), wherein the lifting mechanism (2) is mounted on the supporting base plate (1); A rotating mechanism (3), the rotating mechanism (3) comprising a supporting plate (31) and a rotating drive mechanism (32), the supporting plate (31) being rotatably mounted on the lifting mechanism (2) and connected to the rotating drive mechanism (32), the rotating drive mechanism (32) being inserted into the lifting mechanism (2), and the rotating drive mechanism (32) being configured to drive the supporting plate (31) to rotate; A left-right translation mechanism (4), wherein the left-right translation mechanism (4) is mounted on the rotation mechanism (3); A loading mechanism (5), the loading mechanism (5) is installed on the left-right translation mechanism (4), a handle connection structure (6) is installed on one side of the loading mechanism (5), the handle connection structure (6) is provided with a force sensor (7), and the loading mechanism (5) is configured to drive the handle connection structure (6) to move forward and backward and perform a loading test.

2. The caravan handle strength detection device according to claim 1, characterized in that: The rotation drive mechanism (32) comprises a first servo motor (321) and a connecting rod (322); the first servo motor (321) is inserted into the lifting mechanism (2); the connecting rod (322) is fixed to the support plate (31); and the first servo motor (321) is configured to drive the connecting rod (322) to rotate.

3. The caravan handle strength detection device according to claim 1, characterized in that: The left-right translation mechanism (4) comprises a left-right translation plate (41) and a second servo motor (42); the left-right translation plate (41) is slidably arranged on the support plate (31); the second servo motor (42) is connected to a first lead screw (43); the first lead screw (43) is slidably provided with a fixed block (44); the fixed block (44) is fixed to the left-right translation plate (41); and the second servo motor (42) is configured to drive the first lead screw (43) to rotate.

4. The caravan handle strength detection device according to claim 3, characterized in that: The left-right translation mechanism (4) further comprises a first slide rail (45), wherein the first slide rail (45) is fixed to the support plate (31), and the first slide rail (45) is slidably provided with a first slider (46), and the first slider (46) is fixed to the left-right translation plate (41).

5. The caravan handle strength detection device according to claim 1, characterized in that: The loading mechanism (5) comprises a front-to-back translation mechanism (51) and a servo electric cylinder (52); the front-to-back translation mechanism (51) is slidably arranged on the left-to-right translation mechanism (4); and the servo electric cylinder (52) is configured to drive the front-to-back translation mechanism (51) to move forward and backward.

6. The caravan handle strength detection device according to claim 5, characterized in that: The front-to-back translation mechanism (51) comprises a front-to-back translation frame (511) and a second slide rail (512); one side of the front-to-back translation frame (511) is connected to the servo electric cylinder (52) via a telescopic rod (513); the other side of the front-to-back translation frame (511) is installed with the handle connection structure (6); the second slide rail (512) is fixed to the left-to-right translation mechanism (4); the second slide rail (512) is slidably provided with a second slider (514); and the second slider (514) is fixed to the front-to-back translation frame (511).

7. The caravan handle strength detection device according to claim 1, characterized in that: The lifting mechanism (2) comprises a second lead screw (21) and a bracket (22), wherein the second lead screw (21) is mounted on the supporting base plate (1), the bracket (22) is fixedly arranged around the supporting base plate (1), the bracket (22) is slidably provided with a supporting platform (23), the supporting platform (23) is threadedly connected to the second lead screw (21), the second lead screw (21) is connected to a third servo motor (24), and the third servo motor (24) is configured to drive the second lead screw (21) to rotate.

8. The caravan handle strength detection device according to claim 7, characterized in that: A third slide rail (25) is provided on the inner side of the bracket (22), a third slide block (26) is slidably provided on the third slide rail (25), and the third slide block (26) is fixed to the support platform (23).

9. The caravan handle strength detection device according to claim 1, characterized in that: A plurality of universal wheels (8) are provided at the bottom of the supporting base plate (1).

10. A method for detecting the strength of a caravan handle using the caravan handle strength detection device according to any one of claims 1 to 9, characterized in that: It includes the following steps: The handle connection structure (6) is moved to a position at the same height as the vehicle moving handle by using the lifting mechanism (2), and then the handle connection structure (6) is rotated to a set angle by using the rotating mechanism (3). Then, the handle connection structure (6) is moved to a position directly opposite to the vehicle moving handle by using the left-right translation mechanism (4), and finally, the handle connection structure (6) is moved to a position connected to the vehicle moving handle by using the loading mechanism (5); A loading test is performed on the vehicle moving handle using a loading mechanism (5), the loading test is terminated after a set loading time, and the deformation of the vehicle moving handle is observed.

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