Motor caravan furniture vibration testing device

Abstract

The invention discloses a motor caravan furniture vibration testing device, which belongs to the field of vibration testing and comprises a testing platform, testing furniture is fixedly mounted on the testing platform through a car body bracket, the car body bracket simulates an original car frame, the testing furniture simulates original car furniture, and the testing platform comprises vibration equipment. The vibration equipment is used for carrying out a vibration test on the test furniture, a lateral disturbance system and a pavement texture simulation system are arranged on a vibration table top of the vibration equipment, the lateral disturbance system is used for simulating transverse inclination and transverse displacement, and the pavement texture simulation system is used for simulating different road conditions; the pavement texture simulation system comprises a plurality of simulation plates and a replacement device, the replacement device is used for replacing the simulation plates, the replacement device comprises a first clamping plate and a second clamping plate, the distance between the first clamping plate and the second clamping plate is adjustable, and the first clamping plate and the second clamping plate can synchronously perform up-down lifting movement and transverse horizontal movement. The replacing device further comprises a push plate capable of ascending, descending and transversely moving.

Description

Technical Field

[0001] This invention relates to the field of vibration testing, and in particular to a vibration testing device for RV furniture. Background Technology

[0002] A motorhome, also known as a RV, combines the functions of a "house" and a "vehicle," but its primary attribute is still that of a vehicle. It's a mobile vehicle equipped with essential home amenities. These amenities include: bedding, stove, refrigerator, cabinets, sofa, dining table and chairs, washing facilities, air conditioning, television, and audio system. The vehicle can be divided into driving, living, bedroom, bathroom, and kitchen areas. A motorhome integrates "clothing, food, shelter, and transportation," realizing a fashionable product that allows one to "live while traveling and travel while living."

[0003] Furniture products are an important part of the interior of a motorhome. Their structural stability and reliability directly affect the customer's user experience. During the journey, the furniture faces a complex and variable vibration environment, including vibrations of different frequencies, amplitudes and directions.

[0004] Traditional vibration testing equipment for motorhome production struggles to simulate complex working conditions and suffers from a lack of comprehensive testing capabilities. Summary of the Invention

[0005] This invention provides a vibration testing device for recreational vehicle furniture, which can solve the problems of existing traditional vibration testing devices for recreational vehicle production being unable to simulate complex working conditions and having a single testing dimension.

[0006] A vibration testing device for RV furniture includes a testing platform on which test furniture is fixedly mounted via a vehicle frame. The vehicle frame simulates the original vehicle frame, and the test furniture simulates the original vehicle furniture. The test platform includes a vibration device for conducting vibration tests on the test furniture. The vibration table of the vibration device is equipped with a lateral disturbance system and a road texture simulation system. The lateral disturbance system is used to simulate lateral tilt and lateral displacement, and the road texture simulation system is used to simulate different road conditions. The road surface texture simulation system includes several simulation plates and a replacement device. The replacement device is used to replace the simulation plates. The replacement device includes a first clamping plate and a second clamping plate with adjustable spacing. The first clamping plate and the second clamping plate can move up and down and move horizontally simultaneously. The replacement device also includes a push plate that can move up and down and move horizontally. The push plate is also equipped with a fixing mechanism for fixing the simulation plates.

[0007] Furthermore, the vehicle body bracket includes a side bracket and a bottom bracket, both of which have a number of mounting holes.

[0008] Furthermore, the test furniture includes a cabinet, which is equipped with an induction cooker, drawers, and cabinet doors. The test furniture at least replicates the door lock structure, drawer structure, induction cooker structure, iPad structure, bathroom door structure, and side and bottom magnetic drawers of the original vehicle.

[0009] Furthermore, the simulation board includes at least three types: simulated asphalt road surface, simulated gravel road surface, and simulated mud road surface.

[0010] Furthermore, the test platform includes a base, on which a vibration table is mounted. The top of the vibration table is provided with a vibration table surface, and sliding rails are symmetrically provided on both sides of the vibration table surface. A first sliding member and a second sliding member are slidably provided on each of the two sliding rails. The first sliding member and the second sliding member can move independently. Pneumatic pins are slidably provided at both ends of the two sliding rails. Several connection ports are also provided on the side of the vibration table surface.

[0011] Furthermore, the base is also provided with a side mounting plate, which is fixed to the ground. A fixed rail is fixedly provided at the top of the side mounting plate. A limiting groove is provided in the fixed rail. A moving part is slidably provided on the limiting groove. A U-shaped frame is fixedly provided on the moving part. An installation platform is rotatably provided in the U-shaped frame. The U-shaped frame and the installation platform are driven by a first motor. The moving part is driven by a first telescopic cylinder. The first telescopic cylinder is fixed to the top of the fixed rail by the mounting part.

[0012] Furthermore, the base has a cavity, and several equally spaced partitions are fixed inside the cavity. The cavity is in a U-shaped semi-closed state, that is, one side of the cavity has an opening, and the partitions are used to place different types of simulation boards.

[0013] Furthermore, the replacement device is located at one end of the base. The replacement device includes two adjustable-spaced first and second clamping plates. A right-angle bracket is fixedly mounted on the upper side of the base. A first threaded rod and a first limiting rod are rotatably mounted on the right-angle bracket. The first threaded rod is driven by a motor. A first moving plate is threadedly fitted onto the first threaded rod. A second moving plate is slidably mounted on the first moving plate. The second moving plate is moved by a cylinder. A second telescopic cylinder and a third telescopic cylinder are fixedly mounted on the second moving plate. The output ends of the second and third telescopic cylinders are fixedly connected to the first and second clamping plates, respectively. The distance between the first and second clamping plates is changed through the second and third telescopic cylinders.

[0014] Furthermore, the other end of the base is also provided with a push-out mechanism for sequentially pushing out the simulation plates on the partition, including a fourth telescopic cylinder fixedly mounted on a right-angle bracket. The output end of the fourth telescopic cylinder is fixedly mounted with a drive box via an end plate. A second threaded rod is rotatably mounted on the drive box, and a second limiting rod is fixedly mounted on it. A sliding side plate is also fixedly mounted on the right-angle bracket. A rectangular groove is slidably mounted on the sliding side plate, and a rectangular plate is slidably mounted in the rectangular groove. The rectangular plate is rotatably engaged with the second threaded rod, and the rectangular plate is slidably engaged with the second limiting rod. A push plate is threadedly engaged on the second threaded rod, and the push plate is slidably engaged with the second limiting rod. The second threaded rod is driven by a motor.

[0015] Furthermore, the fixing mechanism includes a plurality of magnetic suction heads fixedly mounted on a push plate, and magnetic suction holes provided at the end of the simulation plate; Alternatively, the fixing mechanism may include slots on both sides of the simulation plate, and a bidirectional threaded rod is fixedly provided on the push plate. Both ends of the bidirectional threaded rod are threaded with clamping parts, which are made of silicone.

[0016] Beneficial effects

[0017] 1. This invention incorporates a lateral disturbance system and a road surface texture simulation system. The lateral disturbance system simulates the horizontal movement and lateral tilt of a vehicle during actual operation, testing the actual condition of the furniture when turning. The road surface texture simulation system includes three types of road condition simulations: simulated asphalt road, simulated gravel road, and simulated muddy road, testing the furniture under different road conditions. This represents a breakthrough from "static laboratory testing" to "dynamic simulation of real driving," covering vibration tolerance testing of RV furniture in all scenarios, including urban roads, rural dirt roads, and off-road sections.

[0018] 2. This invention provides a dedicated replacement mechanism for the replacement of the simulation plate in the road texture simulation system, including a replacement device and a push-out mechanism. The push-out mechanism first pushes out the corresponding simulation plate, and then the replacement device moves the simulation plate to a designated position. The first and second sliding parts work together with a pneumatic pin to position the simulation plate, ultimately realizing simulated vibration testing under different road conditions. The push-out mechanism, together with the replacement device, can also remove the tested simulation plate and move it back to its initial position, avoiding manual handling of the simulation plate and saving manpower and time. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the vehicle body support and test furniture structure of the present invention; Figure 3 This is a schematic diagram of the test platform structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged schematic diagram of section A in the middle; Figure 5 For the present invention Figure 3 Enlarged schematic diagram of section B; Figure 6 For the present invention Figure 3 Enlarged schematic diagram of section C in the middle; Figure 7 This is a schematic diagram of the vibration table structure of the present invention; Figure 8 This is a side front view of the test platform of the present invention; Figure 9 For the present invention Figure 8 Enlarged schematic diagram of section D in the middle; Figure 10 This is a schematic diagram of the installation of the first and second clamping plates of the present invention; Explanation of reference numerals in the attached figures: 100. Test platform; 200. Vehicle body bracket; 300. Test furniture; 101. Base; 102. Vibration equipment; 103. Side mounting plate; 104. Vibration table; 105. First telescopic cylinder; 106. Mounting component; 107. Moving component; 108. U-shaped frame; 109. First motor; 110. Mounting platform; 111. Fixed track; 112. Limiting groove; 113. Sliding track; 114. First sliding component; 115. Second sliding component; 116. Pneumatic pin; 117. Connection port; 118. Simulation plate; 119. Cavity; 120. Partition plate; 121. Second moving plate; 122. Right-angle bracket; 123. 124. First threaded rod; 125. First moving plate; 126. Second telescopic cylinder; 127. Third telescopic cylinder; 128. Second clamping plate; 129. First clamping plate; 130. Fourth telescopic cylinder; 131. Drive box; 132. End plate; 133. Push plate; 134. Bidirectional threaded rod; 135. Clamping component; 136. Sliding side plate; 137. Rectangular groove; 138. Rectangular plate; 139. Second threaded rod; 140. Second limiting rod; 141. Slot; 201. Side bracket; 202. Bottom bracket; 203. Mounting hole; 301. Cabinet body; 302. Induction cooker; 303. Drawer; 304. Cabinet door. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figure 1As shown in the figure, an embodiment of the present invention provides a vibration testing device for RV furniture, including a testing platform 100, a vehicle frame 200 mounted on the testing platform 100, and test furniture 300 fixed on the vehicle frame 200, such as... Figure 2 As shown, the vehicle body bracket 200 in this embodiment includes a side bracket 201 and a bottom bracket 202. Both the side bracket 201 and the bottom bracket 202 are provided with a plurality of mounting holes 203. The vehicle body bracket 200 in this embodiment is designed to be as consistent as possible with the original vehicle frame, while simplifying the design to ensure that the original structural strength remains unchanged as much as possible.

[0022] The test furniture 300 includes a cabinet 301, equipped with an induction cooker 302, drawers 303, and cabinet doors 304. The test furniture 300 in this implementation replicates at least six structures from the original vehicle. The first is the door lock structure; the test will determine if the lock fails and opens during vibration testing. The second is the drawer structure; the test will verify its structural stability during vibration testing and whether the slide rails will fail. The third is the induction cooker structure, which is magnetically fixed; the test will verify if the magnetic force meets the vibration test requirements. The fourth is the iPad structure; its structural stability will also be reflected in the test results. The fifth is the bathroom door structure; due to space constraints, the design ensures sufficient hinge installation space while adding counterweights to achieve a complete simulation of the original structure. Finally, there is a side-bottom magnetic drawer, which may detach during actual operation due to the vehicle's X-axis acceleration and deceleration; the test will observe whether the magnetic force is sufficient. This integrated design significantly reduces the testing cycle time, and we can also expand and optimize the testing system based on this approach.

[0023] In this embodiment, the cabinet mounting points of the test furniture 300 are kept as consistent as possible with the original vehicle, using the same specifications of corner brackets and standard screws. The mounting point positions are divided into side fixing and bottom fixing, and the spacing between the mounting points is kept as consistent as possible with the original vehicle. This design can ensure that the test results are close to the structural strength of the original vehicle.

[0024] The testing system of the testing platform 100 conducts vibration tests on the test furniture 300 in the X, Y, and Z directions respectively. According to the set test parameters, including vibration frequency, acceleration, and sweep frequency, the output results are a direct observation of structural failure, such as failure of bathroom door hinge structure, failure of drawer magnetic structure, and failure of drawer door lock structure.

[0025] Traditional vibration testing relies heavily on static simulations and lacks dynamic scenarios, and often involves single-parameter testing. By using a dynamic road condition simulation chamber, a breakthrough is achieved from "laboratory static testing" to "real driving dynamic simulation," covering vibration tolerance verification of RV furniture in all scenarios, including urban roads, rural dirt roads, and off-road sections.

[0026] Specifically, such as Figure 3 The test platform 100 shown mainly includes a lateral disturbance system and a road texture simulation system. The lateral disturbance system can achieve lateral tilting and lateral displacement to simulate "lateral vibration when turning and avoiding obstacles". The road texture simulation board is a replaceable "road condition simulation board" laid under the furniture installation platform, which includes three types: "asphalt road (smooth)", "gravel road (containing raised particles)" and "mud road (rubber raised + elastic coating to simulate soft ground)".

[0027] like Figure 3 As shown, the test platform 100 includes a base 101, on which a vibration device 102 is mounted. The top of the vibration device 102 is provided with a vibration table 104. Figure 7 As shown, the vibration table 104 has symmetrical sliding rails 113 on both sides. A first sliding member 114 and a second sliding member 115 are slidably mounted on the sliding rails 113 on both sides. The first sliding member 114 and the second sliding member 115 can move independently. In this embodiment, the driving method of the first sliding member 114 and the second sliding member 115 includes electromagnetic driving, which is a conventional technical means well known to those skilled in the art and will not be described in detail here. Pneumatic pins 116 are slidably mounted at both ends of the sliding rails 113 on both sides. The side of the vibration table 104 is also provided with several connection ports 117. Compressed air is injected through the connection ports 117 to extend and retract the pneumatic pins 116. In this embodiment, the first sliding member 114 and the second sliding member 115 are used to transport the simulation plate 118. When the first sliding member 114 and the second sliding member 115 transport the simulation plate 118 to the designated position, the pneumatic pin 116 is inserted into the positioning hole on the simulation plate 118 to achieve the positioning of the simulation plate 118. In this embodiment, the simulation plate 118 is a road surface texture simulation plate. The simulation plate 118 includes at least three types: asphalt road surface simulation plate, gravel road surface simulation plate, and mud road surface simulation plate.

[0028] like Figure 3As shown, in conventional testing systems, testing is usually conducted with the furniture in a stationary state. However, in actual use, vehicles are often in motion and may tilt due to turning. Therefore, this embodiment simulates the vehicle's motion state by adding a lateral disturbance system. Specifically, the base 101 also has a side mounting plate 103, which is fixed to the ground. A fixed rail 111 is fixed to the top of the side mounting plate 103, and a limiting groove 112 is provided in the fixed rail 111. A moving part 10 slides on the limiting groove 112. 7. A U-shaped frame 108 is fixedly mounted on the movable component 107, and an installation platform 110 is rotatably mounted inside the U-shaped frame 108. This embodiment provides a rotation method for the installation platform 110 and a movement method for the movable component 107. However, when implementing this technical solution, other conventional technical means known to those skilled in the art are also included. Specifically, the U-shaped frame 108 and the installation platform 110 are driven by a first motor 109, and the movable component 107 is driven by a first telescopic cylinder 105. The first telescopic cylinder 105 is fixed to the top of the fixed track 111 by an installation component 106.

[0029] In use, the vehicle body bracket 200 and the test furniture 300 are fixed on the mounting platform 110. Then, the first telescopic cylinder 105 realizes the lateral movement of the moving part 107 and the mounting platform 110 to simulate the horizontal movement of the vehicle in actual road conditions. The motor drives the mounting platform 110 to rotate to simulate the tilting state of the vehicle body in actual conditions. Combined with the vibration of the vibration device 102, the test furniture 300 is tested in multiple dimensions, making the test data richer.

[0030] This embodiment provides three types of road condition simulation boards 118 and a replacement mechanism for the simulation boards 118. Specifically, as follows: Figure 8 and Figure 9 As shown, the base 101 has a cavity 119 inside, and several equally spaced partitions 120 are fixed inside the cavity 119. The cavity 119 is in a U-shaped semi-closed state, that is, one side of the cavity 119 has an opening. The partitions 120 are used to place different types of simulation boards 118.

[0031] like Figure 10As shown, when conducting tests under different road conditions, it is necessary to move the simulation plate 118 on the partition 120 to the test platform 100. In this embodiment, the simulation plate 118 function is achieved by providing a replacement device. The replacement device is located at one end of the base 101 and includes two adjustable clamping plates 129 and 128. The first clamping plates 129 and 128 can move up and down and laterally simultaneously. This embodiment provides a driving mechanism for the first clamping plates 129 and 128. Specifically, the base... A right-angle bracket 122 is fixedly mounted on the upper side of the seat 101. A first threaded rod 123 and a first limiting rod 124 are rotatably mounted on the right-angle bracket 122. The first threaded rod 123 is driven by a motor, and a first moving plate 125 is threadedly engaged on the first threaded rod 123. A second moving plate 121 is slidably mounted on the first moving plate 125. The second moving plate 121 is moved by a cylinder. A second telescopic cylinder 126 and a third telescopic cylinder 127 are fixedly mounted on the second moving plate 121. The output ends of the second telescopic cylinder 126 and the third telescopic cylinder 127 are... The first clamping plate 129 and the second clamping plate 128 are fixedly connected to each other respectively. The distance between the first clamping plate 129 and the second clamping plate 128 is changed by the second telescopic cylinder 126 and the third telescopic cylinder 127. When the simulation plate 118 is pushed between the first clamping plate 129 and the second clamping plate 128, the distance between the first clamping plate 129 and the second clamping plate 128 is adjusted to fit against the top and bottom surfaces of the simulation plate 118 respectively. In order to prevent the simulation plate 118 from tilting at one end, the width of the second clamping plate 128 should be set to be slightly wider to avoid the simulation plate 118 being pushed out. When one end tilts, and the simulation plate 118 is fully moved onto the second clamping plate 128, the first clamping plate 129 and the second clamping plate 128 clamp the simulation plate 118 and move it upward to a specified height. The first clamping plate 129 and the second clamping plate 128 are controlled to move laterally, so as to move the simulation plate 118 to the first sliding member 114 and the second sliding member 115. The first sliding member 114 is provided with a right-angle baffle, which can limit the right-angle ends of the simulation plate 118 to ensure that the simulation plate 118 can be accurately positioned by the pneumatic pin 116 when it is moved to the specified position.

[0032] like Figure 3 and Figure 5As shown, the other end of the base 101 is also provided with a push-out mechanism, which is used to push out the simulation plate 118 on the partition 120 in sequence. Specifically, it includes a fourth telescopic cylinder 130 fixedly mounted on the right-angle bracket 122. The output end of the fourth telescopic cylinder 130 is fixedly mounted with a drive box 131 through the end plate 132. A second threaded rod 139 is rotatably mounted on the drive box 131, and a second limiting rod 140 is fixedly mounted on it. A sliding side plate 136 is also fixedly mounted on the right-angle bracket 122. A rectangular groove 137 is slidably mounted on the sliding side plate 136. A rectangular plate 138 is slidably mounted in the rectangular groove 137. The rectangular plate 138 is rotatably engaged with the second threaded rod 139 and slidably engaged with the second limiting rod 140. A push plate 133 is threadedly engaged on the second threaded rod 139 and slidably engaged with the second limiting rod 140. The second threaded rod 139 is driven by a motor. In use, the height of the push plate 133 is changed by the fourth telescopic cylinder 130, so that it can be consistent with the height of the simulation plate 118 on different partitions 120. Then, the second threaded rod 139 is used to move the push plate 133 laterally, pushing the simulation plate 118 out of the partition 120.

[0033] In this embodiment, the push plate 133 is also provided with a fixing mechanism. The push plate 133 fixes the simulation plate 118. The fixing mechanism includes two implementation methods. First, a plurality of magnetic heads are fixed on the push plate 133 and magnetic holes are provided at the end of the simulation plate 118. The attraction between the magnetic heads and the magnetic holes fixes the push plate 133 and the simulation plate 118, so that the push plate 133 can be pushed out or the simulation plate 118 can be pulled back.

[0034] Secondly, the simulation board 118 has on both sides... Figure 6 The slot 141 shown has a push plate 133 with a fixed bidirectional threaded rod 134. Both ends of the bidirectional threaded rod 134 are threaded with clamping members 135. The clamping members 135 are made of silicone and can deform to a certain extent. The bidirectional threaded rod 134 drives the clamping members 135 to move, and the clamping members 135 clamp the slots 141 on both sides of the simulation board 118, thereby fixing the simulation board 118 and further realizing the push-out and pull-back of the simulation board 118.

[0035] In use, the simulation board 118 is pushed between the first clamping plate 129 and the second clamping plate 128 by the pushing mechanism. Then, the first clamping plate 129 and the second clamping plate 128 are raised and moved laterally onto the first sliding member 114 and the second sliding member 115. The first sliding member 114 and the second sliding member 115 move the simulation board 118 to the designated position and lock it by the pneumatic pin 116. With the help of the lateral disturbance system, multi-dimensional testing of the test furniture 300 is achieved. After the test, the simulation board 118 is replaced. The first sliding member 114 and the second sliding member 115 slide the simulation board 118 out to the first clamping plate 129 and the second clamping plate 128. The first clamping plate 129 and the second clamping plate 128 transfer the simulation board 118 to the top of the partition 120. The fixing mechanism on the push plate 133 fixes the simulation board 118 and pulls the simulation board 118 back to the top of the partition 120 for placement. The above steps are repeated to replace the next simulation board 118.

[0036] The testing apparatus in this embodiment also includes several sensors, including: Vibration sensors: Three-axis accelerometers are attached to key parts of the furniture (top corners of cabinets, drawer slides, seat supports) to collect vibration acceleration in real time; Strain sensors: Strain gauges are attached to furniture connectors (bolts, hinges, and joints between panels) to monitor changes in structural stress; Displacement sensor: A laser displacement sensor is used, which is installed on the side wall of the cabin and aimed at the easily deformable parts of the furniture (such as the edge of the tabletop and the gap of the cabinet door) to monitor the amount of displacement; Sound sensors: Microphone arrays are installed inside the cabin to capture abnormal noises during vibration (such as the "clicking" sound of loose connectors or the "crackling" sound of cracked plates) and locate the fault location.

[0037] Data processing terminal: Employs an industrial-grade computer for synchronous acquisition of sensor data.

[0038] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A vibration testing device for RV furniture, characterized in that, The test platform (100) is fixedly mounted on the test platform (100) by a vehicle body bracket (200), the vehicle body bracket (200) simulates the original vehicle frame, and the test furniture (300) simulates the original vehicle furniture; The test platform (100) includes a vibration device (102), which is used to perform vibration tests on the test furniture (300). The vibration table (102) of the vibration device (102) is equipped with a lateral disturbance system and a road texture simulation system. The lateral disturbance system is used to simulate lateral tilt and lateral displacement, and the road texture simulation system is used to simulate different road conditions. The road surface texture simulation system includes several simulation plates (118), a replacement device, and a pushing mechanism. The replacement device is used to replace the simulation plates (118), and the pushing mechanism pushes out the simulation plates (118). The replacement device includes a first clamping plate (129) and a second clamping plate (128) with adjustable spacing. The first clamping plate (129) and the second clamping plate (128) can move up and down and move horizontally at the same time. The pushing mechanism includes a push plate (133) that can move up and down and move horizontally. The push plate (133) is also provided with a fixing mechanism, which is used to fix the simulation plates (118).

2. The vibration testing device for RV furniture as described in claim 1, characterized in that, The vehicle body bracket (200) includes a side bracket (201) and a bottom bracket (202), and both the side bracket (201) and the bottom bracket (202) are provided with a number of mounting holes (203).

3. The vibration testing device for RV furniture as described in claim 1, characterized in that, The test furniture (300) includes a cabinet (301), which is equipped with an induction cooker (302), drawers (303) and cabinet doors (304). The test furniture (300) at least replicates the door lock structure, drawer structure, induction cooker structure, iPad structure, bathroom door structure and side bottom magnetic drawer of the original vehicle.

4. The vibration testing device for RV furniture as described in claim 1, characterized in that, The simulation board (118) includes at least three types: simulated asphalt pavement, simulated gravel pavement and simulated mud pavement.

5. The vibration testing device for RV furniture as described in claim 4, characterized in that, The test platform (100) includes a base (101), a vibration table (102) is installed on the base (101), a vibration table (104) is provided on the top of the vibration table (102), and sliding rails (113) are symmetrically provided on both sides of the vibration table (104). A first sliding member (114) and a second sliding member (115) are slidably provided on both sides of the sliding rails (113). The first sliding member (114) and the second sliding member (115) can move independently. Pneumatic pins (116) are slidably provided at both ends of the sliding rails (113) on both sides. Several connection ports (117) are also provided on the side of the vibration table (104).

6. The vibration testing device for RV furniture as described in claim 5, characterized in that, The base (101) is also provided with a side mounting plate (103), which is fixed on the ground. A fixed track (111) is fixed at the top of the side mounting plate (103). A limiting groove (112) is provided in the fixed track (111). A moving part (107) is slidably provided on the limiting groove (112). A U-shaped frame (108) is fixed on the moving part (107). An installation platform (110) is rotatably provided in the U-shaped frame (108). The U-shaped frame (108) and the installation platform (110) are driven by a first motor (109). The moving part (107) is driven by a first telescopic cylinder (105). The first telescopic cylinder (105) is fixed at the top of the fixed track (111) by a mounting part (106).

7. The vibration testing device for RV furniture as described in claim 6, characterized in that, The base (101) has a cavity (119) inside, and several equally spaced partitions (120) are fixed inside the cavity (119). The cavity (119) is in a U-shaped semi-closed state, that is, one side of the cavity (119) has an opening. The partitions (120) are used to place different types of simulation boards (118).

8. The vibration testing device for RV furniture as described in claim 7, characterized in that, The replacement device is located at one end of the base (101). The replacement device includes two adjustable first clamping plates (129) and a second clamping plate (128). A right-angle bracket (122) is fixedly provided on the upper side of the base (101). A first threaded rod (123) and a first limiting rod (124) are rotatably provided on the right-angle bracket (122). The first threaded rod (123) is driven by a motor. A first moving plate (125) is threadedly engaged on the first threaded rod (123). A sliding device is provided on the first moving plate (125). The second movable plate (121) is moved by a cylinder. The second movable plate (121) is fixedly provided with a second telescopic cylinder (126) and a third telescopic cylinder (127). The output ends of the second telescopic cylinder (126) and the third telescopic cylinder (127) are fixedly connected to the first clamping plate (129) and the second clamping plate (128) respectively. The distance between the first clamping plate (129) and the second clamping plate (128) is changed by the second telescopic cylinder (126) and the third telescopic cylinder (127).

9. A vibration testing device for RV furniture as described in claim 8, characterized in that, The other end of the base (101) is also provided with a push-out mechanism for sequentially pushing out the simulation plate (118) on the partition (120), including a fourth telescopic cylinder (130) fixedly mounted on the right-angle bracket (122). The output end of the fourth telescopic cylinder (130) is fixedly mounted with a drive box (131) through the end plate (132). A second threaded rod (139) is rotatably mounted on the drive box (131), and a second limit rod (140) is fixedly mounted. A sliding rod is also fixedly mounted on the right-angle bracket (122). The movable side plate (136) has a rectangular groove (137) that slides on it. A rectangular plate (138) slides in the rectangular groove (137). The rectangular plate (138) is rotatably engaged with the second threaded rod (139). The rectangular plate (138) is slidably engaged with the second limiting rod (140). A push plate (133) is threadedly engaged on the second threaded rod (139). The push plate (133) is slidably engaged with the second limiting rod (140). The second threaded rod (139) is driven by a motor.

10. A vibration testing device for RV furniture as described in claim 9, characterized in that, The fixing mechanism includes a plurality of magnetic heads fixedly mounted on a push plate (133), and magnetic holes provided at the end of the simulation plate (118); Alternatively, the fixing mechanism may include slots (141) on both sides of the simulation plate (118), and a bidirectional threaded rod (134) fixed on the push plate (133). Both ends of the bidirectional threaded rod (134) are threaded with clamping parts (135), and the clamping parts (135) are made of silicone.

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