A test device for a hanging motor home

Abstract

The application provides a test device for a hanging type recreational vehicle, comprising a base and a frame arranged on the base, the base and the frame enclosing a test space for accommodating the recreational vehicle, the base being provided with a conveying belt, a traction member of the conveying belt comprising a main support and a bearing plate, the bearing plate being arranged on the main support and used for bearing the recreational vehicle, the main support being formed with protrusions distributed at intervals, one end of the base being provided with a traction wall, the traction wall being provided with a traction device used for connecting with a front end of the recreational vehicle, the traction device having two different adapters, the inner wall of the frame being provided with a plurality of spray heads, and the inner wall of the frame being further provided with a plurality of air supply openings for blowing air to the recreational vehicle. The test device can simultaneously perform multiple tests of bumping, raining and blowing on the recreational vehicle, greatly improving the test efficiency of the recreational vehicle, and the two adapters of the traction device can be well connected with multiple recreational vehicles, so that multiple recreational vehicles can be tested.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of vehicle testing, and specifically provides a test device for a trailer house car. BACKGROUND

[0002] A house car, also known as a “house on wheels”, has both functions of “house” and “car”, and is equipped with various basic facilities to meet the daily life needs of users, and can also travel on the road. Among them, the house car is divided into self-propelled house car and trailer house car. The self-propelled house car can travel by itself like other ordinary cars, while the trailer house car has no power and needs to be towed by an additional vehicle to drive it to travel.

[0003] The house car needs to be tested before leaving the factory, including driving test, rain test, etc. Because the trailer house car needs to be driven by a towing vehicle, and the test of the trailer house car needs to be transferred to multiple sites, the test efficiency of the trailer house car is low. SUMMARY

[0004] In order to solve the above problems in the prior art, the application provides a test device for a hanging motor home, which comprises a base and a frame arranged on the base, the base and the frame enclose a test space for accommodating the motor home, the base is provided with a conveying belt for carrying the motor home, the conveying belt comprises a support frame, a plurality of driving devices and a traction member, the support frame is fixedly connected with the base, the traction member is arranged around the support frame, the plurality of driving devices are distributed on the support frame at intervals and are fixedly connected with the traction member, so that the driving devices drive the traction member to rotate on the support frame, the traction member comprises a main support and a carrying plate, the carrying plate covers the main support and is used for carrying the motor home, the main support is provided with protrusions which are distributed at intervals, one end of the base is provided with a traction wall, the traction wall is provided with a traction device which is used for being connected with the front end of the motor home, the traction device comprises a connecting rod and a plurality of adapter members, the connecting rod comprises a fixed part and a movable part, the fixed part is fixedly connected with the traction wall, the movable part is movably connected with the fixed part and can move relative to the fixed part in the direction of approaching or moving away from the traction wall, one end of the connecting rod is connected with the traction wall, and the other end of the connecting rod is connected with the plurality of adapter members, the adapter members are used for being fixed with the motor home, the plurality of adapter members comprise a first pivot rod, a second pivot rod, a third pivot rod and a fourth pivot rod, the first pivot rod is pivotally connected with the connecting rod and can rotate in the horizontal direction, the second pivot rod is pivotally connected with the first pivot rod, and the plane formed by the rotation of the first pivot rod relative to the connecting rod is perpendicular to the plane formed by the rotation of the second pivot rod relative to the first pivot rod, the third pivot rod is pivotally connected with the second pivot rod, and the plane formed by the rotation of the second pivot rod relative to the first pivot rod is parallel to the plane formed by the rotation of the third pivot rod relative to the second pivot rod, the fourth pivot rod is pivotally connected with the third pivot rod, and the plane formed by the rotation of the third pivot rod relative to the second pivot rod is perpendicular to the plane formed by the rotation of the fourth pivot rod relative to the third pivot rod, one part of the plurality of adapter members comprises a first clamping member, and the other part of the plurality of adapter members comprises a second clamping member, the first clamping member comprises a left clamping part and a right clamping part, the left clamping part and the right clamping part are respectively pivotally connected with the fourth pivot rod, so as to be capable of approaching or moving away from each other, to clamp the appropriate part of the motor home, and the plane formed by the rotation of the left clamping part and the right clamping part is parallel to the plane formed by the rotation of the fourth pivot rod relative to the third pivot rod, the second clamping member comprises an upper clamping part and a lower clamping part, the upper clamping part and the lower clamping part are respectively pivotally connected with the fourth pivot rod, so as to be capable of approaching or moving away from each other, to clamp the appropriate part of the motor home, and the plane formed by the rotation of the upper clamping part and the lower clamping part is perpendicular to the plane formed by the rotation of the fourth pivot rod relative to the third pivot rod.The inner wall of the frame is provided with a plurality of spray heads, the frame is internally provided with a water delivery pipe, the water delivery pipe is in communication with the spray heads, a water pump is arranged on the delivery path of the water delivery pipe, the water pump is used to deliver water to the spray heads through the water delivery pipe, so that the spray heads spray water on the motor home, and the inner wall of the frame is also provided with a plurality of air outlets, the air outlets are in communication with a fan to blow air on the motor home.

[0005] When the motor home is tested, the motor home enters the test space surrounded by the frame and the base and is carried by the carrying plate, the traction device is fixedly connected to the front end of the motor home, the conveyor belt is started, the motor home is pulled by the traction device, the relative movement between the motor home and the conveyor belt simulates the on-road situation of the motor home, and the convex portions on the traction member are in contact with the wheels of the motor home at intervals in the process of rotation of the traction member, so that the overall stability of the motor home in the bumpy state is simulated and tested.

[0006] The movable part of the motor home moves relative to the fixed part under the pulling of the motor home until the maximum moving distance is reached, the traction device pulls the motor home, and the conveyor belt stops, so that the motor home moves a distance under the inertia, the movable part is retracted, and the moving distance of the motor home under the inertia after braking is simulated according to the moving amount of the movable part.

[0007] Optionally, the base is internally provided with a water storage cavity, and the water storage cavity is arranged at the bottom of the conveyor belt.

[0008] Optionally, the water storage cavity is connected with the spray heads through the water delivery pipe, and the water pump is used to deliver the liquid in the water storage cavity to the spray heads.

[0009] Optionally, a force measuring device is arranged between the movable part and the traction wall, one end of the force measuring device is fixed to the traction wall, the other end of the force measuring device is connected with the movable part through a tension rope, and the length of the tension rope is less than the moving distance of the movable part, so that the tension rope is tightened before the movable part reaches the maximum moving distance.

[0010] Optionally, a scale is arranged on the movable part.

[0011] Optionally, an infrared distance measuring device is arranged on the traction wall to monitor the distance between the motor home and the traction wall.

[0012] Optionally, a guide member is arranged at the end of the base away from the traction wall, and the guide member forms an inclined surface for guiding the motor home to move to the conveyor belt.

[0013] Optionally, the frame comprises a plurality of rigid parts and flexible parts arranged between the rigid parts, the rigid parts are movably mounted on the base, and the flexible parts between two adjacent rigid parts close to each other are compressed.

[0014] Optionally, the frame is made of transparent material.

[0015] Those skilled in the art can understand that the foregoing test device for the hanging trailer car has at least the following beneficial effects:

[0016] 1、By setting the protruding parts on the main support of the traction part, the load bearing plate covering the main support also adapts to the shape of the main support, when the trailer car needs to be tested, the trailer car can enter the test space surrounded by the frame and the base, and be carried by the load bearing plate, so that the traction device is fixedly connected with the front end of the trailer car, and then the conveyor belt is started, because the trailer car is pulled by the traction device, the relative movement between the trailer car and the conveyor belt can simulate the on-road situation of the trailer car, in the process of rotation of the traction part, the protruding parts on the traction part are in contact with the wheels of the trailer car at intervals, so as to simulate and test the overall stability of the trailer car in the bumpy state, at the same time, the water pump supplies water to the spray head through the water supply pipe, the spray head sprays water to the trailer car, and the fan blows air to the trailer car through the air supply opening, so as to test the wind and rain resistance of the trailer car in the face of windy and rainy weather, thereby multiple tests of the trailer car can be carried out on the test device at one time, the test efficiency of the trailer car is greatly improved, and the labor and material costs are saved. Moreover, because the structures for connecting with external towing vehicles of different models of trailer cars are different, by setting the first pivot rod, the second pivot rod, the third pivot rod and the fourth pivot rod, and setting the first clamping part on part of the adapter and the second clamping part on another part of the adapter, the left clamping part and the right clamping part of the first clamping part are convenient for clamping the rod-shaped structure in the vertical plane, the upper clamping part and the lower clamping part of the second clamping part are convenient for clamping the rod-shaped structure in the horizontal plane, when the connection structure of the trailer car to be tested has a vertical rod-shaped structure, the first clamping part can be adjusted to the appropriate position by rotating the first pivot rod, the second pivot rod, the third pivot rod and the fourth pivot rod, and then the left clamping part and the right clamping part clamp the vertical rod-shaped structure, when the connection structure of the trailer car to be tested has a horizontal rod-shaped structure, the second clamping part can be adjusted to the appropriate position by rotating the first pivot rod, the second pivot rod, the third pivot rod and the fourth pivot rod, and then the upper clamping part and the lower clamping part clamp the horizontal rod-shaped structure, so that the traction device of the test device can adapt to multiple models of trailer cars, and the test device can test multiple models of trailer cars, which is beneficial to improve the test efficiency.

[0017] 2、By setting the water storage cavity at the bottom of the conveyor belt, the water sprayed by the spray head can be collected in the water storage cavity, and the collected water can be used for testing the trailer car again, thereby improving the utilization efficiency of water resources and saving water resources.

[0018] Further, by connecting the water storage cavity and the spray head with the water delivery pipe, the water pump can deliver water in the water storage cavity to the spray head, and the water sprayed by the spray head falls back into the water storage cavity, thereby forming a circulation. Therefore, as long as test water is put into the water storage cavity in advance, the circulation can be used to maintain long-time testing, thereby reducing the amount of test water and further improving the utilization efficiency of water resources.

[0019] 3、By setting the fixed part and the movable part, the movable part can move relative to the fixed part under the pulling of the house car during the testing process of the house car until the maximum moving distance is reached, so that the traction device pulls the house car. When the conveyor belt stops, the house car will move a distance under the inertia, so that the movable part retracts, thereby simulating the moving distance of the house car under inertia after braking according to the moving amount of the movable part to calculate the impact on the towing vehicle during the actual operation of the house car.

[0020] Further, by setting the scale on the fixed part, the moving amount of the house car can be more conveniently read out.

[0021] 4、By setting the force measuring device between the movable part and the traction wall, the force measuring device can monitor the pulling force received by the house car during the testing process of the house car, so as to obtain the relationship between the speed of the house car and the traction force, thereby providing more reference information for the user, so that the user can select a suitable house car according to his own vehicle.

[0022] 5、By setting the infrared distance measuring device on the traction wall, the moving amount of the house car can be better detected, and the distance measuring device can be connected in communication with a receiving end instrument such as a computer, so as to more conveniently collect information.

[0023] 6、By setting the guide member on the testing device, the house car can be conveniently moved to the base along the inclined surface of the guide member, thereby improving the testing efficiency.

[0024] 7、By setting the frame as a telescopic structure, the frame can be retracted when rain test is not performed, thereby facilitating observation of other test conditions of the house car.

[0025] 8、By making the frame of transparent material, the condition of the house car in the test space can be conveniently observed. BRIEF DESCRIPTION OF DRAWINGS

[0026] Some embodiments of the present application will be described below with reference to the accompanying drawings, in which:

[0027] Figure 1 is an axonometric view of the testing device in the first embodiment of the present application;

[0028] Figure 2 is a structural schematic view of the testing device in the first embodiment of the present application;

[0029] Figure 3 is a schematic view of a connecting rod of a traction device in the first embodiment of the present application;

[0030] Figure 4 is a schematic view of an adapter of a traction device in the first embodiment of the present application.

[0031] Legend of reference signs:

[0032] 1, base; 11, conveying belt; 111, support frame; 112, driving device; 113, traction member; 12, traction wall; 13, infrared distance measuring device; 14, water storage cavity; 15, guide member; 2, frame; 21, shower head; 22, air supply opening; 3, traction device; 31, connecting rod; 311, fixed part; 312, movable part; 32, adapter; 321, first pivot rod; 322, second pivot rod; 323, third pivot rod; 324, fourth pivot rod; 325, first clamping member; 3251, left clamping part; 3252, right clamping part; 326, second clamping member; 3261, upper clamping part; 3262, lower clamping part; 4, motor home. DETAILED DESCRIPTION

[0033] Those skilled in the art should understand that the embodiments described below are only a part of the embodiments of the present application, not all the embodiments of the present application, and are intended to explain the technical principles of the present application, not to limit the protection scope of the present application. Based on the embodiments provided in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor shall fall within the protection scope of the present application.

[0034] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0035] In addition, it needs to be explained that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, and can also be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] The test device of the application comprises a base and a frame arranged on the base, the base and the frame enclose a test space for accommodating a recreational vehicle, the base is provided with a conveying belt for carrying the recreational vehicle, the conveying belt comprises a support frame, a plurality of driving devices and a traction member, the support frame is fixedly connected with the base, the traction member is arranged around the support frame, the plurality of driving devices are distributed on the support frame at intervals and are fixedly connected with the traction member, so that the driving devices drive the traction member to rotate on the support frame, the traction member comprises a main support and a carrying plate, the carrying plate covers the main support and is used for carrying the recreational vehicle, the main support is provided with protrusions distributed at intervals, one end of the base is provided with a traction wall, the traction wall is provided with a traction device used for connecting with the front end of the recreational vehicle, the traction device comprises a connecting rod and a plurality of adapter members, the connecting rod comprises a fixed part and a movable part, the fixed part is fixedly connected with the traction wall, the movable part is movably connected with the fixed part and can move relative to the fixed part in the direction of approaching or moving away from the traction wall, one end of the connecting rod is connected with the traction wall, and the other end is connected with the plurality of adapter members, the adapter members are used for fixing the recreational vehicle, the plurality of adapter members comprise a first pivot rod, a second pivot rod, a third pivot rod and a fourth pivot rod, the first pivot rod is pivotally connected with the connecting rod and can rotate in the horizontal direction, the second pivot rod is pivotally connected with the first pivot rod, and the plane formed by the rotation of the first pivot rod relative to the connecting rod is perpendicular to the plane formed by the rotation of the second pivot rod relative to the first pivot rod, the third pivot rod is pivotally connected with the second pivot rod, and the plane formed by the rotation of the second pivot rod relative to the first pivot rod is parallel to the plane formed by the rotation of the third pivot rod relative to the second pivot rod, the fourth pivot rod is pivotally connected with the third pivot rod, and the plane formed by the rotation of the third pivot rod relative to the second pivot rod is perpendicular to the plane formed by the rotation of the fourth pivot rod relative to the third pivot rod, one part of the plurality of adapter members comprises a first clamping member, and the other part comprises a second clamping member, the first clamping member comprises a left clamping part and a right clamping part, the left clamping part and the right clamping part are respectively pivotally connected with the fourth pivot rod, so as to be capable of moving close to or away from each other to clamp the appropriate part of the recreational vehicle, and the plane formed by the rotation of the left clamping part and the right clamping part is parallel to the plane formed by the rotation of the fourth pivot rod relative to the third pivot rod, the second clamping member comprises an upper clamping part and a lower clamping part, the upper clamping part and the lower clamping part are respectively pivotally connected with the fourth pivot rod, so as to be capable of moving close to or away from each other to clamp the appropriate part of the recreational vehicle, and the plane formed by the rotation of the upper clamping part and the lower clamping part is perpendicular to the plane formed by the rotation of the fourth pivot rod relative to the third pivot rod, the inner wall of the frame is provided with a plurality of spray heads, and the inside of the frame is provided with a water conveying pipe.The water delivery pipe is communicated with the spray head, a water pump is arranged on a conveying path of the water delivery pipe, the water pump is used for conveying water to the spray head through the water delivery pipe, so that the spray head sprays water to the recreational vehicle, and a plurality of air outlets are further arranged on the inner wall of the frame and communicated with a fan, so as to blow air to the recreational vehicle.

[0037] During the test of the recreational vehicle, the recreational vehicle enters the test space surrounded by the frame and the base and is carried by the carrying plate, the traction device is fixedly connected with the front end of the recreational vehicle, the conveying belt is started, the recreational vehicle is pulled by the traction device, the relative movement between the recreational vehicle and the conveying belt simulates the on-road situation of the recreational vehicle, the convex parts on the traction member are in contact with the wheels of the recreational vehicle at intervals during the rotation of the traction member, and the overall stability of the recreational vehicle in the bumpy state is simulated and tested.

[0038] The movable part of the recreational vehicle moves relative to the fixed part under the pulling of the recreational vehicle until the maximum moving distance is reached, the traction device pulls the recreational vehicle, the conveying belt stops, the recreational vehicle moves a distance under the inertia, the movable part retracts, and the moving distance of the recreational vehicle under the inertia after braking is simulated according to the moving amount of the movable part.

[0039] The test equipment of the application is characterized in that the protruding parts are arranged at intervals on the main support of the traction member, the bearing plate covering the main support also adapts to the shape of the main support, when the motor home needs to be tested, the motor home can enter the test space surrounded by the frame and the base, and is carried by the bearing plate, the traction device is fixed to the front end of the motor home, and then the conveyor belt is started, because the motor home is pulled by the traction device, the motor home can be tested by the relative movement between the motor home and the conveyor belt, in the process of rotation of the traction member, the protruding parts on the traction member are in contact with the wheels of the motor home at intervals, so as to simulate and test the overall stability of the motor home in the bumpy state, at the same time, the water pump supplies water to the spray head through the water pipe, the spray head sprays water to the motor home, and the fan blows air to the motor home through the air outlet, so as to test the wind and rain resistance of the motor home in the face of windy and rainy weather, so that the motor home can be tested on the test equipment at one time, the test efficiency of the motor home is greatly improved, and the labor and material costs are saved. And, because the structures for connecting with external traction vehicles of different models of motor homes are different, by arranging the first pivot rod, the second pivot rod, the third pivot rod and the fourth pivot rod, and arranging the first clamping part on part of the adapter and the second clamping part on another part of the adapter, the left clamping part and the right clamping part of the first clamping part are convenient for clamping the rod-shaped structure in the vertical plane, the upper clamping part and the lower clamping part of the second clamping part are convenient for clamping the rod-shaped structure in the horizontal plane, when the connecting structure of the tested motor home has a vertical rod-shaped structure, the first clamping part can be adjusted to the appropriate position by rotating the first pivot rod, the second pivot rod, the third pivot rod and the fourth pivot rod, and then the left clamping part and the right clamping part clamp the vertical rod-shaped structure, when the connecting structure of the tested motor home has a horizontal rod-shaped structure, the second clamping part can be adjusted to the appropriate position by rotating the first pivot rod, the second pivot rod, the third pivot rod and the fourth pivot rod, and then the upper clamping part and the lower clamping part clamp the horizontal rod-shaped structure, so that the traction device of the test equipment can adapt to motor homes of various models, and the test equipment can test motor homes of various models, which is helpful to improve the test efficiency.

[0040] The specific structure of the test equipment of the application will be described below with reference to the accompanying drawings.

[0041] The first embodiment of the application is as follows:

[0042] As shown in Figure 1 The test equipment of the embodiment includes a base 1 and a frame 2, the base 1 is used to carry the motor home 4 that needs to be tested, and the frame 2 and the base 1 jointly surround the motor home 4 that needs to be tested, so as to form a test space for accommodating the motor home 4.

[0043] As shown in Figures 1 to 3As shown, specifically, the base 1 is provided with a conveying belt 11 and a traction wall 12, the conveying belt 11 comprises a support frame 111, a plurality of driving devices 112 and a traction member 113, the support frame 111 is fixedly connected with the base 1, so as to fix and support the whole conveying belt 11 on the base 1. The plurality of driving devices 112 are motors, which are distributed on the support frame 111 at intervals, and the traction member 113 comprises a main support (not shown in the figure) and a bearing plate (not shown in the figure), the main support is formed with a plurality of protrusions, and the bearing plate covers the main support and is attached to the shape of the main support, and is used for placing the motor home 4 to be tested. The traction wall 12 is arranged at one end of the base 1, and the traction device 3 is arranged on the traction wall 12, which can be connected with the front end of the motor home 4, so as to form traction to the motor home 4. When the conveying belt 11 is started (referring to the figure, the conveying belt 11 rotates counterclockwise), the traction device 3 pulls the motor home 4, so that the motor home 4 will not fall off the conveying belt 11, so as to simulate the driving condition of the motor home 4 by using the relative movement between the motor home 4 and the conveying belt 11. During the rotation of the traction member 113, the protrusions formed on the traction member 113 will move with the rotation of the traction member 113, so as to intermittently contact with the wheels of the motor home 4, which can test the overall stability of the motor home 4 when encountering uneven road conditions.

[0044] It should be noted that the size of the traction wall 12 can be able to completely block the test space formed by the base 1 and the frame 2 from one side, or can be a relatively small structure, as long as the installation position of the traction device 3 is ensured. In addition, the traction wall 12 can be integrally formed on the base 1, or can be formed separately from the base 1 and fixed on the base 1.

[0045] Referring to Figure 2 and Figure 4As shown, specifically, the traction device 3 comprises a connecting rod 31 and a plurality of adapters 32, wherein part of the adapters 32 comprises a first pivot rod 321, a second pivot rod 322, a third pivot rod 323, a fourth pivot rod 324, and a first clamping piece 325, and another part of the adapters 32 comprises a first pivot rod 321, a second pivot rod 322, a third pivot rod 323, a fourth pivot rod 324, and a second clamping piece 326, wherein, taking the adapter 32 provided with the first clamping piece 325 as an example, the first pivot rod 321 is pivotally connected with the connecting rod 31, and the first pivot rod 321 rotates relative to the connecting rod 31 in the horizontal direction, the second pivot rod 322 is pivotally connected with the first pivot rod 321, and the plane formed by the rotation of the first pivot rod 321 relative to the connecting rod 31 is perpendicular to the plane formed by the rotation of the second pivot rod 322 relative to the first pivot rod 321, the third pivot rod 323 is pivotally connected with the second pivot rod 322, and the plane formed by the rotation of the second pivot rod 322 relative to the first pivot rod 321 is parallel to the plane formed by the rotation of the third pivot rod 323 relative to the second pivot rod 322, the fourth pivot rod 324 is pivotally connected with the third pivot rod 323, and the plane formed by the rotation of the third pivot rod 323 relative to the second pivot rod 322 is perpendicular to the plane formed by the rotation of the fourth pivot rod 324 relative to the third pivot rod 323, the first clamping piece 325 comprises a left clamping part 3251 and a right clamping part 3252, the left clamping part 3251 and the right clamping part 3252 are respectively pivotally connected with the fourth pivot rod 324, so as to be capable of approaching or moving away from each other, and the plane formed by the rotation of the left clamping part 3251 and the right clamping part 3252 is parallel to the plane formed by the rotation of the fourth pivot rod 324 relative to the third pivot rod 323, in other words, taking the connection between the first pivot rod 321 and the connecting rod 31 as a reference, the first pivot rod 321 can adjust the movement of the first clamping piece 325 in the horizontal direction, the second pivot rod 322 can adjust the movement of the first clamping piece 325 in the vertical direction, the third pivot rod 323 can adjust the movement of the first clamping piece 325 in the vertical direction, and the fourth pivot rod 324 can adjust the movement of the first clamping piece 325 in the horizontal direction, so as to facilitate clamping the rod-shaped structure arranged in the vertical plane. Taking the adapter 32 provided with the second clamping piece 326 as an example, the connection mode of the first pivot rod 321, the second pivot rod 322, the third pivot rod 323, and the fourth pivot rod 324 is the same as that of the adapter 32 provided with the first clamping piece 325, except that the second clamping piece 326 comprises an upper clamping part 3261 and a lower clamping part 3262, the upper clamping part 3261 and the lower clamping part 3262 are respectively pivotally connected with the fourth pivot rod 324, so as to be capable of approaching or moving away from each other, and the plane formed by the rotation of the upper clamping part 3261 and the lower clamping part 3262 is perpendicular to the plane formed by the rotation of the fourth pivot rod 324 relative to the third pivot rod 323, so as to facilitate clamping the rod-shaped structure arranged in the horizontal plane.

[0046] The skilled in the art can understand that, by setting two different adapters 32, when the connecting structure of the test motor home has a rod-shaped structure arranged in a vertical plane, the first clamping piece 325 can be adjusted to a suitable position by rotating the first pivot rod 321, the second pivot rod 322, the third pivot rod 323 and the fourth pivot rod 324, and then the left clamping part 3251 and the right clamping part 3252 can clamp the rod-shaped structure; when the connecting structure of the test motor home has a rod-shaped structure arranged in a horizontal plane, the second clamping piece 326 can be adjusted to a suitable position by rotating the first pivot rod 321, the second pivot rod 322, the third pivot rod 323 and the fourth pivot rod 324, and then the upper clamping part 3261 and the lower clamping part 3262 can clamp the rod-shaped structure, and the first pivot rod 321 and the fourth pivot rod 324 can help the clamping piece to avoid obstacles between the structure to be clamped and the traction device 3, so that the traction device 3 of the test equipment can be adapted to various models of motor homes, and thus the test equipment can detect various models of motor homes, which is beneficial to improve the detection efficiency.

[0047] It should be noted that, Figure 4 The adapter 32 is only an example, and the traction device 3 of the embodiment can be provided with more than four adapters 32, and ensure that the left and right sides are provided with adapters 32 with the first clamping piece 325 and adapters 32 with the second clamping piece 326.

[0048] Referring to Figures 2 to 3As shown, further, the connecting rod 31 comprises a fixed part 311 and a movable part 312, the fixed part 311 is fixedly connected with the traction wall 12, and the movable part 312 can move away from or close to the traction wall 12 relative to the fixed part 311. As an embodiment, the fixed part 311 and the movable part 312 are both cylindrical structures, the diameter of the movable part 312 is smaller than that of the fixed part 311, the movable part 312 is embedded inside the fixed part 311 and can move along the axial direction of the fixed part 311 inside the fixed part 311, but the movable part 312 cannot be taken out of the fixed part 311; as another embodiment, the fixed part 311 can be two side walls, and the rod-shaped movable part 312 is clamped in the middle, so that the movable part 312 moves in the clamping channel formed between the two side walls. Therefore, during the test of the motor home 4, the motor home 4 will pull the movable part 312 to the maximum movement under the driving of the conveyor belt 11, at this time, the traction device 3 will pull the motor home 4 tightly, the pulling force of the traction device 3 on the motor home 4 simulates the pulling force of the towing vehicle that the motor home 4 actually drives, and after the conveyor belt 11 stops, the motor home 4 will move a distance under the inertia, so that the movable part 312 retracts, so as to simulate the moving distance of the motor home under the inertia after braking according to the movement of the movable part 312, so as to calculate the impact on the towing vehicle that the motor home actually runs.

[0049] As shown in Figure 2 , further, the traction wall 12 is provided with an infrared distance measuring device 13, which can monitor the distance between the motor home 4 and the traction wall 12, and the infrared distance measuring device 13 can be connected in communication with an external computer or other receiving end to transmit the collected data to the computer, so as to better detect and collect the movement information of the motor home 4. Although not shown in the figure, a force measuring device is arranged between the movable part 312 and the traction wall 12, one end of the force measuring device is fixed to the traction wall 12, and the other end is connected with the movable part 312 through a pulling rope, the length of the pulling rope is smaller than the movement distance of the movable part 312, that is, the movable part 312 will be pulled by the pulling rope and cannot reach the maximum movement distance, so that the pulling rope can be pulled tightly to obtain the detection result, and the force measuring device can monitor the pulling force during the test of the motor home 4, so as to roughly obtain the relationship between the speed of the motor home and the traction force, and further provide more reference information for the user, so that the user can select a suitable motor home according to his own vehicle. Similarly, the force measuring device can also be connected in communication with a computer or other receiving end, so as to transmit the collected data to the computer in real time.

[0050] Referring to Figure 2As shown, the frame 2 is provided with a plurality of spray heads 21, and the base 1 is provided with a water storage cavity 14, which is arranged at the bottom of the conveying belt 11. The frame 2 is internally provided with a water conveying pipe (not shown in the figure), and the water storage cavity 14 and the spray head 21 are communicated through the water conveying pipe. A water pump (not shown in the figure) is arranged on the conveying path of the water conveying pipe. Before testing, water is first filled in the water storage cavity 14. During testing, the water pump can convey the water in the water storage cavity 14 to the spray head 21. After the spray head 21 sprays water to the RV 4, the water will flow along the RV 4 to the conveying belt 11 and then flow into the water storage cavity 14, thereby forming a water circulation, thereby reducing the amount of water used for testing and improving the utilization efficiency of water resources. The inner wall of the frame 2 is further provided with a plurality of air supply ports 22, which are communicated with a fan (not shown in the figure) to blow air to the RV.

[0051] As can be understood by those skilled in the art, the spray head 21 can spray water to the RV 4, and the air supply port 22 can blow air to the RV 4, so as to test the use of the RV 4 in rainy and windy weather and check the rain and windproof function of the RV 4. Preferably, the spray head 21 and the air supply port 22 are arranged on the top wall and the two side walls of the frame 2.

[0052] As shown in Figure 1 and Figure 2 The base 1 is further provided with a guide member 15 arranged at the end of the base 1 away from the traction wall 12. The guide member 15 is provided with an inclined surface to facilitate the movement of the RV 4 along the inclined surface to the conveying belt 11.

[0053] Preferably, the frame 2 of the embodiment is a telescopic structure. Specifically, the frame 2 comprises a plurality of rigid parts and flexible parts arranged between the rigid parts. The rigid parts are movably mounted on the base 1. The flexible parts between the adjacent two rigid parts can be compressed when the two rigid parts are close to each other, thereby realizing telescoping, so that the frame 2 can be retracted when not performing rain test, thereby facilitating the observation of other test conditions of the RV. Alternatively, preferably, the frame 2 is made of transparent material, which can also facilitate the observation of the conditions in the test space.

[0054] In combination with Figures 1 to 4As shown, in the use of the test device, first, the house car 4 is pulled onto the conveyor belt 11 along the inclined surface of the guide member 15 by means of a cable and the like, and according to the specific structure of the connecting portion of the house car 4, the first pivot rod 321, the second pivot rod 322, the third pivot rod 323, and the fourth pivot rod 324 are adjusted so that the first clamping piece 325 or the second clamping piece 326 moves to a position capable of clamping the connecting structure, and the first clamping piece 325 or the second clamping piece 326 clamps the house car, and the front end of the house car 4 is connected together with the traction device 3, at this time, the conveyor belt 11 is started, and after the house car 4 moves with the conveyor belt 11 for a period of time, the movable portion 312 is stretched to the maximum moving distance, so that the house car 4 is pulled, and then the house car 4 moves forward relative to the conveyor belt 11, so as to test the driving condition of the house car 4, during which the wheels of the house car 4 bump against the protruding portions on the conveyor belt 11 to cause the house car 4 to jolt, and the force measuring device transmits the pulling force received by the house car 4 to the computer receiving end in real time. Then the conveyor belt 11 is suddenly stopped, and the house car 4 retracts the movable portion 312 by one end distance under the inertia, and the infrared distance measuring device 13 collects the distance change between the house car 4 and the traction wall 12 and sends it to the computer receiving end. And after the water pump is started, the water pump delivers water in the water storage cavity 14 to the spray head 21, and the spray head 21 sprays water to the house car 4, so as to test the rainproof ability of the house car 4, and then the water flows back to the water storage cavity 14, and the cycle is repeated. The opened air blower blows air to the house car 4 through the air outlet 22, so as to test the windproof ability of the house car 4.

[0055] The skilled in the art can understand that, by arranging the protrusions on the traction member 113, when the motor home needs to be tested, the motor home can enter the test space surrounded by the frame and the base, and be carried by the carrying plate, so that the traction device 3 is fixedly connected with the front end of the motor home, and then the conveyor belt is started. Because the motor home is pulled by the traction device 3, the motor home can be tested by the relative movement between the motor home and the conveyor belt 11 to simulate the road test of the motor home. During the rotation of the traction member 113, the protrusions on the traction member 113 are arranged to be in contact with the wheels of the motor home at intervals, so as to simulate and test the overall stability of the motor home in the bumpy state. At the same time, the water pump supplies water to the spray head 21 through the water supply pipe, and the spray head 21 sprays water to the motor home, and the fan blows air to the motor home through the air outlet 22, so as to test the wind and rain resistance of the motor home in the face of windy and rainy weather. Thus, the motor home can be tested on the test equipment at one time, which greatly improves the test efficiency of the motor home and saves the cost of manpower and material resources. Moreover, because the structures for connecting with external traction vehicles of different models of motor homes are different, by arranging the first pivot rod 321, the second pivot rod 322, the third pivot rod 323 and the fourth pivot rod 324, and arranging the first clamping member 325 and the second clamping member 326, when the connecting structure of the tested motor home has a rod-shaped structure arranged in a vertical plane, the first clamping member 325 can be adjusted to a suitable position by rotating the first pivot rod 321, the second pivot rod 322, the third pivot rod 323 and the fourth pivot rod 324, and then the left clamping part 3251 and the right clamping part 3252 can clamp the rod-shaped structure. When the connecting structure of the tested motor home has a rod-shaped structure arranged in a horizontal plane, the second clamping member 326 can be adjusted to a suitable position by rotating the first pivot rod 321, the second pivot rod 322, the third pivot rod 323 and the fourth pivot rod 324, and then the upper clamping part 3261 and the lower clamping part 3262 can clamp the rod-shaped structure. Moreover, the first pivot rod 321 and the fourth pivot rod 324 can help the clamping member to avoid obstacles between the clamped structure and the traction device 3, so that the traction device 3 of the test equipment can adapt to motor homes of various models, and thus the test equipment can test motor homes of various models, which is beneficial to improve the test efficiency.

[0056] The second embodiment of the present application is as follows:

[0057] Although not shown in the figure, unlike the first embodiment, the water storage cavity of the present embodiment is not communicated with the spray head, but a water tank for storing test water is additionally arranged, so that the spray head uses the water in the water tank for testing, and the water storage cavity plays a role in collecting water. The collected water can be used for testing the motor home again, which can improve the utilization efficiency of water resources to a certain extent and save water resources.

[0058] The third embodiment of the present application is as follows:

[0059] Although not shown in the figure, different from the first embodiment and the second embodiment, the present embodiment does not have a water storage cavity, and additionally has a water tank for storing test water, so that the spraying device uses the water in the water tank for testing.

[0060] The fourth embodiment of the present application:

[0061] Although not shown in the figure, different from the first embodiment, the second embodiment and the third embodiment, the present embodiment can not have an infrared ranging device, but has a scale on the movable part, which is also convenient for obtaining the moving amount of the motor home.

[0062] The fifth embodiment of the present application:

[0063] Although not shown in the figure, different from the foregoing embodiments, the present embodiment can not have a force measuring device.

[0064] The sixth embodiment of the present application:

[0065] Although not shown in the figure, different from the foregoing embodiments, the present embodiment can not have a guiding member, and the motor home needs to be hoisted onto the conveyor belt.

[0066] So far, the technical solutions of the present application have been described in combination with the foregoing embodiments, but those skilled in the art can easily understand that the protection scope of the present application is not limited to these specific embodiments. Those skilled in the art can split and combine the technical solutions in the foregoing embodiments, or make equivalent changes or replacements to the related technical features, without deviating from the technical principles of the present application. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present application will fall within the protection scope of the present application.

Claims

1. A testing device for trailer-mounted caravans, characterized in that, The system includes a base and a frame mounted on the base, forming a test space for accommodating a motorhome. The base has a conveyor belt for carrying the motorhome. The conveyor belt includes a support frame, multiple drive units, and a traction component. The support frame is fixedly connected to the base, and the traction component surrounds the support frame. The multiple drive units are spaced apart on the support frame and fixedly connected to the traction component, so that a activated drive unit drives the traction component to rotate on the support frame. The traction component includes a main support and a support plate, with the support plate covering the main support for carrying the motorhome. The main support has spaced protrusions. One end of the base has a traction wall with a connection for the front end of the motorhome. A towing device includes a connecting rod and multiple adapters. The connecting rod includes a fixed portion and a movable portion. The fixed portion is fixedly connected to the towing wall, and the movable portion is movably connected to the fixed portion to move relative to the fixed portion in a direction closer to or farther from the towing wall. One end of the connecting rod is connected to the towing wall, and the other end is connected to the multiple adapters. The adapters are used to secure the vehicle. The multiple adapters include a first pivot rod, a second pivot rod, a third pivot rod, and a fourth pivot rod. The first pivot rod is pivotally connected to the connecting rod and rotates in the horizontal direction. The second pivot rod is pivotally connected to the first pivot rod, and the first pivot rod rotates relative to the connecting rod. The plane formed by the second pivot rod and its rotation relative to the first pivot rod is perpendicular to the plane formed by the second pivot rod and its rotation relative to the first pivot rod. The third pivot rod is pivotally connected to the second pivot rod, and the plane formed by the rotation of the second pivot rod relative to the first pivot rod is parallel to the plane formed by the rotation of the third pivot rod relative to the second pivot rod. The fourth pivot rod is pivotally connected to the third pivot rod, and the plane formed by the rotation of the third pivot rod relative to the second pivot rod is perpendicular to the plane formed by the rotation of the fourth pivot rod relative to the third pivot rod. A portion of the plurality of adapters includes a first clamping member, and another portion includes a second clamping member. The first clamping member includes a left clamping portion and a right clamping portion. The left and right clamping parts are pivotally connected to the fourth pivot rod, allowing them to move closer or further apart to clamp suitable parts of the RV. The plane formed by the rotation of the left and right clamping parts is parallel to the plane formed by the rotation of the fourth pivot rod relative to the third pivot rod. The second clamping member includes an upper clamping part and a lower clamping part, which are pivotally connected to the fourth pivot rod, allowing them to move closer or further apart to clamp suitable parts of the RV. The plane formed by the rotation of the upper and lower clamping parts is perpendicular to the plane formed by the rotation of the fourth pivot rod relative to the third pivot rod. Multiple spray heads are provided on the inner wall of the frame, and water pipes are provided inside the frame.The water supply pipe is connected to the sprinkler head, and a water pump is installed along the delivery path of the water supply pipe. The water pump is used to deliver water through the water supply pipe to the sprinkler head, so that the sprinkler head sprays water onto the RV. The inner wall of the frame is also provided with multiple air outlets, which are connected to a fan to blow air onto the RV. During RV testing, the RV enters the test space enclosed by the frame and base and is supported by the bearing plate. The traction device is fixed to the front end of the RV. When the conveyor belt is turned on, the RV is pulled by the traction device. The relative movement between the RV and the conveyor belt simulates the RV's road conditions. During the rotation of the traction device, the protrusions on the traction device contact the RV's wheels at intervals to simulate and test the overall stability of the RV under bumpy conditions. The movable part of the RV moves relative to the fixed part under the pull of the RV until it reaches the maximum moving distance. The traction device pulls the RV, the conveyor belt stops, and the RV will move a certain distance under inertia. The movable part retracts. The amount of movement of the movable part is used to simulate the distance the RV moves under inertia after braking.

2. The testing equipment for hanging caravans according to claim 1, characterized in that, The base is provided with a water storage chamber, which is located at the bottom of the conveyor belt.

3. The testing equipment for hanging caravans according to claim 2, characterized in that, The water storage chamber is connected to the spray head through the water supply pipe, and the water pump is used to transport the liquid in the water storage chamber to the spray head.

4. The testing equipment for hanging caravans according to claim 1, characterized in that, A force measuring device is provided between the movable part and the traction wall. One end of the force measuring device is fixed to the traction wall, and the other end is connected to the movable part through a tension rope. The length of the tension rope is less than the movement distance of the movable part, so that the tension rope is tightened before the movable part reaches its maximum movement distance.

5. The testing equipment for trailer-mounted caravans according to claim 1, characterized in that, The active part is marked with graduations.

6. The testing equipment for hanging caravans according to claim 1, characterized in that, The towing wall is equipped with an infrared ranging device to monitor the distance between the RV and the towing wall.

7. The testing equipment for hanging caravans according to claim 1, characterized in that, The base is provided with a guide member at one end away from the traction wall, and the guide member forms an inclined surface for guiding the RV to move to the conveyor belt.

8. The testing equipment for trailer-mounted caravans according to claim 1, characterized in that, The frame includes multiple rigid sections and flexible sections disposed between the multiple rigid sections. The rigid sections are movably mounted on the base, and the close proximity of two adjacent rigid sections causes the flexible section between them to be compressed.

9. The testing equipment for a hanging caravan according to claim 1, characterized in that, The frame is made of transparent material.

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