Adjustable stable balance frame mounted on new energy motor home

Abstract

The invention relates to an adjustable new energy motor home loading stable balance frame which comprises a main frame used for being connected with a carriage and comprises a main frame body and guide rods connected in a crossed mode. The auxiliary frame is used for being connected with a vehicle chassis and comprises an auxiliary frame body and supporting rods connected in a crossed mode. A lead screw is rotationally connected into the supporting rod, sliding bases are slidably connected to the two ends of the supporting rod, the lead screw penetrates through and is in threaded connection with the two ends of the sliding bases, and the thread directions of the two ends of the sliding bases are opposite. And the ends, in sliding connection with the guide rods, of the air springs are gathered towards the geometric center of the main frame, and driving motors for driving the lead screws to rotate so as to drive the sliding seats to slide in the length directions of the lead screws are arranged in the supporting rods. The carriage is buffered through the gathered air springs during emergency braking and starting acceleration, the load of the loading carriage on the auxiliary frame is reduced, the connection stress of the carriage and the chassis is more uniform, and the connection service life of the carriage and the chassis is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of stabilization of recreational vehicle upper structures, and in particular to an adjustable stabilizing and balancing frame for a new energy recreational vehicle upper structure. Background Art

[0002] RVs are a popular type of vehicle that combines a house and a car body. They are an indispensable means of transportation for families to go on vacation, travel, and gather.

[0003] However, when an RV is in motion, it usually has a suspension system to offset the vibrations generated by the vehicle during travel, thereby reducing the vibration or displacement of items inside the RV through shock absorption. This is because the entire bottom of the RV cabin is directly connected to the bottom of the vehicle, which can not only provide stable support for the cabin, but also provide shock absorption through the chassis suspension system.

[0004] However, when the RV encounters sudden braking or starting acceleration during driving, the connection between the car body and the chassis is easily subjected to loads in various directions formed by the upper car body. After long-term driving, it is easy to cause uneven force on the connection between the car body and the chassis, resulting in a significantly reduced service life of the connection between the car body and the chassis. Summary of the Invention

[0005] In order to make the force at the connection between the car body and the chassis more uniform and increase the service life of the connection between the car body and the chassis, the present application provides an adjustable new energy RV upper body stable and balanced frame.

[0006] The present application provides an adjustable stable and balanced frame for a new energy RV, comprising: The main frame is used for fixed connection with the carriage, and includes a main frame body and cross-connected guide rods; The subframe is used to be fixedly connected to the vehicle chassis and includes a subframe body and cross-connected support rods; The yoke is symmetrically arranged with respect to the guide rod, and a screw rod is rotatably connected in the support rod. The screw rods in the cross-connected support rods are staggered in the vertical direction, and the two ends of the support rod are slidably connected to a slide seat, and the screw rod passes through and is threadedly connected to the two ends of the slide seat in opposite directions. An air spring is installed on the slide seat, and the end of the air spring away from the slide seat is slidably sleeved on the guide rod, and the end of the air spring and the guide rod sliding connection are both gathered toward the geometric center direction of the main frame. A driving motor is provided in the support rod to drive the screw rod to rotate and drive the slide seat to slide along the length direction of the screw rod.

[0007] By adopting the above technical solution, the main frame is fixedly connected to the car body and the sub-frame is connected to the vehicle chassis, so that the main frame and the sub-frame form a connection between the car body and the chassis. Driven by the drive motor, the screw rod is driven to rotate, and the two slides on the screw rod slide toward or away from each other, thereby driving the air springs on the same screw rod to slide toward or away from each other, so as to adjust the distance between the air springs gathered between the main frame and the sub-frame. When the car body on the main frame encounters sudden braking and starting acceleration during vehicle driving, the gathered air springs can cushion the car body in sudden braking and starting acceleration, reduce the bumps and vibrations of the car body on the chassis, and reduce the loads on the sub-frame from various directions formed by the upper car body, so that the force on the car body and the chassis through the connection between the main frame and the sub-frame is more evenly distributed, thereby increasing the service life of the connection between the car body and the chassis.

[0008] Optionally, the drive motor is located at the end of the sub-frame, and a hydraulic support leg is rotatably provided on the sub-frame, and the hydraulic support leg rotates between the crossed support rods.

[0009] By adopting the above technical solution, when the RV needs to be parked, the hydraulic support legs are rotated to be perpendicular to the ground, and the entire vehicle body is raised as the hydraulic support legs are raised, thereby reducing the pressure on the RV tires, helping to protect the tires and increase the service life of the tires.

[0010] Optionally, the end of the screw rod close to the driving motor is coaxially connected to the first bevel gear, the hydraulic support leg has a rotating column rotatably connected to the sub-frame, the end of the rotating column away from the hydraulic support leg penetrates into the support rod and is coaxially connected to the second bevel gear, the second bevel gear is rotatably connected to the first bevel gear, and when the driving motor drives the slide to drive the air spring away, the screw rod drives the second bevel gear to rotate through the first bevel gear to rotate the hydraulic support leg to be perpendicular to the ground.

[0011] By adopting the above technical solution, when the hydraulic support legs are driven to rotate perpendicular to the ground to support the RV, the drive motor drives the slide and air springs, which are connected through the screw rod, away from each other. Simultaneously, the drive motor rotates the first bevel gear, which in turn rotates the second bevel gear, which in turn drives the hydraulic support legs to gradually rotate perpendicular to the ground. At this point, the air springs are at their furthest distance, supporting the cabin at the four corners of the RV, while the hydraulic support legs also support the entire RV. This allows for easier parking by adjusting the air springs supporting the cabin while also adjusting the hydraulic support legs to park the entire RV, making support adjustment easier and more convenient.

[0012] Optionally, a connecting rod is slidably connected in the rotating column, and a sliding groove is provided in the rotating column for the connecting rod to slide in a direction perpendicular to the axis of the rotating column. A connecting groove connected to the sliding groove is provided at the end of the hydraulic support leg, and a connecting spring is fixedly connected to the bottom of the sliding groove. The connecting spring is connected to the connecting rod at one end away from the bottom of the sliding groove, and the connecting spring is used to push a part of the connecting rod to slide into the connecting groove.

[0013] By adopting the above technical solution, when the hydraulic support leg rotates, the connecting spring pushes the connecting rod to slide into the connecting groove, so that the connecting rod is partially located in the connecting groove, thereby realizing a coaxial connection between the rotating column and the hydraulic support leg, so that after the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the rotating column and the hydraulic support leg to rotate, which helps to realize that the drive motor drives the air spring to move while driving the hydraulic support leg to rotate to support the RV.

[0014] Optionally, the connecting groove passes through the side wall of the end of the hydraulic support leg, and an abutment rod is provided above the hydraulic support leg for sliding in the vertical direction, and the lower end of the abutment rod slides in the connecting groove, and the abutment rod only slides in the connecting groove.

[0015] By adopting the above technical solution, when the hydraulic support leg is folded up, the abutment rod can be slid into the connecting groove, and the connecting rod can be pushed to compress the connecting spring and then slide all into the sliding groove, but the abutment rod is only in the connecting groove to release the coaxial connection between the rotating column and the hydraulic support leg; at this time, the driving motor drives the air spring to move and adjust the position of the supporting main frame, and the first bevel gear drives the second bevel gear to rotate, so that the rotating column and the hydraulic support leg rotate relative to each other; in this way, after the hydraulic support leg is folded up, the driving motor can normally drive the air spring to move and change the support position, thereby facilitating the adjustment of the force and buffer range between the main frame and the sub-frame.

[0016] Optionally, a bracket is fixed on the main frame, and one end of the abutment rod away from the hydraulic support leg slides in the bracket, and an abutment spring is fixed in the bracket, and one end of the abutment spring away from the bracket is fixed to the top of the abutment rod, and the abutment spring is used to push the abutment rod to slide into the connecting groove, and the elastic force of the abutment spring is greater than that of the connecting spring. Under the elastic force of the abutment spring, the abutment rod pushes the connecting rod into the sliding groove to release the coaxial connection between the hydraulic support leg and the rotating column, and a reset member for resetting the abutment rod is provided on the main frame.

[0017] By adopting the above technical solution, when the coaxial connection between the rotating column and the hydraulic support leg is released, the abutment spring pushes the abutment rod downward to slide in, at which time the hydraulic support leg is in a retracted state, and then the abutment rod slides into the connecting groove to push the connecting rod from the connecting groove into the slide groove, but the abutment rod always remains in the connecting groove, so that the rotating column drives the connecting rod to rotate away from the abutment rod; at this time, the abutment rod slides and abuts against the outer peripheral wall of the rotating column under the elastic force of the abutment spring, and the connecting rod slides and abuts against the inner wall of the end of the hydraulic support leg under the elastic force of the connecting spring. When the coaxial connection between the rotating column and the hydraulic support leg needs to be re-established, the abutment rod is driven to reset and slide out of the connecting groove by the reset member, and the rotating column drives the connecting rod to rotate and reconnect the slide groove notch and the connecting groove, so that the connecting rod slides into the connecting groove to realize the coaxial connection between the rotating column and the hydraulic support leg, which helps to switch between coaxial rotation and relative rotation between the rotating column and the hydraulic support leg.

[0018] Optionally, the reset member includes a reset rod slidably arranged on the main frame, a first wedge block arranged on the reset rod, the reset rod slides between the abutment rod and the guide rod, the first wedge block is located on the top wall of the reset rod, and the abutment rod is provided with a second wedge block on the side wall facing the reset rod. When the reset rod slides in the direction close to the hydraulic support leg, the first wedge block pushes the second wedge block to slide up, thereby driving the abutment rod to slide up and out of the connecting groove, so that the connecting rod partially slides into the connecting groove.

[0019] By adopting the above technical solution, when the abutment rod is reset, the reset rod is slid in the direction of the abutment rod, so that the reset rod drives the first wedge block to slide toward the abutment rod, so that the first wedge block pushes the second wedge block to slide up, and then drives the abutment rod to slide up and disengage from the connecting groove, so that the connecting rod part slides into the connecting groove to coaxially connect the rotating column and the hydraulic support leg; and when the coaxial connection between the rotating column and the hydraulic support leg is released, the reset rod is slid in the direction away from the abutment rod, so that the first wedge block is disengaged from the second wedge block, and then the abutment rod slides into the connecting groove under the elastic force of the abutment spring and pushes the connecting rod into the sliding groove.

[0020] Optionally, a fixed post is fixed on the main frame, and the reset rod is slidably arranged on one side of the fixed post toward the guide rod, and the reset rod has a first reset block fixed to one end of the reset rod close to the abutment rod and a second reset block fixed to one end away from the abutment rod, and the second reset block and the fixed post are magnetically adsorbable, and the reset rod is close to a reset spring fixed to one end of the abutment rod, and the reset spring is fixed to the fixed post away from one end of the reset rod, and the reset spring is used to pull the reset rod to drive the second reset block to separate from the fixed post, and cause the first wedge block to push the second wedge block to slide up; when the upper end of the air spring pushes the first reset block, the first reset block is attracted by the fixed post, and the first wedge block on the reset rod is separated from the second wedge block; when the upper end of the air spring pushes the second reset block, the first reset block is separated from the fixed post, and the reset rod is reset under the reset spring.

[0021] By adopting the above technical solution, when the driving motor drives the distance between the air springs, the driving motor first drives the air springs to gather, that is, the air springs slide on the guide rod in the direction away from the driving motor until the upper end of the air spring abuts the second reset block, and then the second reset block is pushed to the magnetic part on the fixed column to fix the second reset block and the fixed column. At this time, the reset spring on the reset rod is in a stretched state, but the first wedge block has been separated from the second wedge block, releasing the abutment on the abutment rod. The abutment rod slides into the connecting groove under the elastic force of the abutment spring and pushes the connecting rod into the slide groove, releasing the coaxial connection between the rotating column and the hydraulic support leg. At this time, the driving motor drives the air spring to slide freely on the guide rod between the first reset block and the second reset block, so as to adjust the gathering distance between the air springs.

[0022] Optionally, when the upper end of the air spring pushes the first reset block to drive the second reset block to disengage from the fixed column, the abutment rod disengages from the connecting groove, and the connecting rod partially slides into the connecting groove under the elastic force of the connecting spring, coaxially connecting the hydraulic support leg and the rotating column, and when the slide drives the air spring to continue sliding toward the hydraulic support leg, the hydraulic support leg rotates downward, and the abutment rod slides and abuts against the outer wall of the hydraulic support leg.

[0023] By adopting the above technical solution, the state in which the driving motor drives the air spring to slide freely on the guide rod between the first reset block and the second reset block is released. It is only necessary to drive the motor to drive the air spring toward the driving motor, and make the upper end of the air spring abut against the first reset block, and push the first reset block to drive the reset rod to slide toward the driving motor, so that the second reset block is separated from the magnetic part of the fixed column; and then the reset rod is reset under the pull of the reset spring, so that the first wedge block pushes the second wedge block to slide up, so that the abutting rod slides up and disengages from the connecting groove, and the connecting rod partially slides into the connecting groove to establish a coaxial connection between the rotating column and the hydraulic support leg. Then, even if the driving motor drives the air springs to move away from each other and drive the hydraulic support legs to rotate to be perpendicular to the ground, the first reset block of the reset rod is abutted by the upper end of the air spring, causing the reset rod to continue to compress the reset spring until the first wedge block slides over the second wedge block; however, at this time, the abutment rod slides and abuts against the outer peripheral wall of the hydraulic support leg, so that the second wedge block remains above the first wedge block, so that the driving motor drives the air spring to gather and reset, and after the hydraulic support legs are retracted, the reset rod drives the first wedge block to slide under the second wedge block under the elastic force of the reset spring, until the first wedge block slides over the second wedge block, and the abutment rod is reset under the elastic force of the abutment spring and slides into the connecting groove to release the coaxial connection between the rotating column and the hydraulic support leg. At this moment, the hydraulic support leg has been retracted.

[0024] Optionally, the fixed column is arranged obliquely between the crossed guide rods, that is, the end of the fixed column close to the second reset block is closer to the guide rod than the end of the fixed column close to the first reset block. After the upper end of the air spring presses against the first reset block, as the air spring slides toward the hydraulic support leg, the upper end of the air spring will detach from the first reset block and slide past the first reset block.

[0025] By adopting the above technical solution, when the second reset block is released from the adsorption of the fixed column, the reset spring pulls the reset rod to drive the first reset block and the second reset block to reset. Since the fixed column is inclined between the intersecting guide rods, the first reset block is no longer in the sliding path of the upper end of the air spring after the reset rod is reset, so that the upper end of the air spring slides past the first reset block to prevent the first wedge block on the reset rod from sliding past the second wedge block, which helps the reset rod to return to its original position.

[0026] In summary, this application includes at least one of the following beneficial technical effects: When the car body on the main frame encounters sudden braking or acceleration during driving, the air springs in a convergent shape cushion the car body in these situations, reducing the bumps and vibrations of the car body on the chassis, and reducing the loads on the subframe from the various directions generated by the upper car body. This makes the force on the car body and chassis more even through the connection between the main frame and subframe, thereby increasing the service life of the connection between the car body and chassis. In this way, when parking, by adjusting the support of the air spring to the car body, the hydraulic support leg can be adjusted to park the entire caravan at the same time, improving the portability of the support adjustment when parking the caravan; After the hydraulic support legs are retracted, the drive motor can normally drive the air spring to move and change the support position, thereby facilitating the adjustment of the force and buffer range between the main frame and the sub-frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the adjustable new energy RV upper stable and balanced frame provided in an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the structure inside the main frame provided in an embodiment of the present application.

[0029] Figure 3 It is a structural schematic diagram for showing the abutment rod provided in an embodiment of the present application.

[0030] Figure 4 This is a schematic cross-sectional view of a rotating column for illustrating a connecting rod provided in an embodiment of the present application.

[0031] Explanation of the accompanying drawings: 1. Main frame; 11. Main frame; 12. Guide rod; 13. Bracket; 131. Abutment rod; 132. Abutment spring; 133. Second wedge block; 14. Reset member; 141. Reset rod; 142. First wedge block; 143. Fixed column; 144. First reset block; 145. Second reset block; 146. Reset spring; 2. Sub-frame; 21. Sub-frame; 22. Support rod; 221. Screw rod; 222. Drive motor; 223. First bevel gear; 23. Slide; 231. Air spring; 232. Stabilizing column; 233. Slide; 24. Hydraulic support leg; 241. Rotating column; 242. Second bevel gear; 243. Connecting rod; 244. Connecting spring; 245. Slide groove; 246. Connecting groove. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses an adjustable stable and balanced frame for a new energy RV. The stable and balanced frame of this embodiment is mainly used in new energy RVs, and all devices on the stable and balanced frame that require electrical drive are powered by the battery of the new energy RV.

[0034] Reference Figure 1 and Figure 2 The stable and balanced frame includes a main frame 1 and a sub-frame 2. The main frame 1 is used to be fixedly connected to the car body, and includes a main frame body 11 and a cross-connected guide rod 12. The sub-frame 2 is used to be fixedly connected to the vehicle chassis, and includes a sub-frame body 21 and a cross-connected support rod 22. The support rod 22 is symmetrically arranged with the guide rod 12. A screw rod 221 is rotatably connected inside the support rod 22. The screw rods 221 in the cross-connected support rods 22 are staggered in the vertical direction. The two ends of the support rod 22 are slidably connected to the slide 23. The screw rod 221 passes through and is threadedly connected to the two ends of the slide 23 with opposite thread directions. An air spring 231 is installed on the slide 23. The end of the air spring 231 away from the slide 23 is slidably sleeved on the guide rod 12. And the ends of the air spring 231 and the guide rod 12 that are slidably connected are both gathered toward the geometric center of the main frame 1. A driving motor 222 is provided in the support rod 22 to drive the lead screw to rotate and drive the slide 23 to slide along the length direction of the lead screw 221.

[0035] In this embodiment, the main frame 1 is located above the sub-frame 2, and the main frame 11 has a plurality of intersecting beams to enhance the stability of the main frame 1. The guide rod 12 is located in the two longest intersecting beams on the main frame 11 to support and protect the guide rod 12. The sub-frame 21 has the same structure as the main frame 11, and the support rods 22 are the two longest intersecting beams on the sub-frame 21. The slide 23 slides in the support rod 22 along the length direction of the screw rod 221. There are four slides 23 in total, and each slide 23 has an air spring 231. The upper end of the air spring 231 is connected to a slide 233, and the slide 233 is slidably mounted on the guide rod 12. A stabilizing column 232 supporting the tilted air spring 231 is fixed on the slide 23. The air springs 231 are distributed at the four corners of the main frame 11, and the four air springs 231 are clustered to support the main frame 11, so that when the main frame 11 swings left and right, forward and backward relative to the sub-frame 21, it is cushioned by the clustered air springs 231, reducing the bumps and shakes of the car body on the chassis, reducing the loads in various directions formed by the upper car body on the sub-frame 2, and making the car body and chassis more evenly stressed through the connection between the main frame 1 and the sub-frame 2, thereby increasing the service life of the connection between the car body and the chassis. The two drive motors 222 that drive the screw rod 221 to rotate are located at the same end of the sub-frame 21. When the drive motor 222 rotates, the screw rod 221 is driven to rotate, causing the slide 23 and the air spring 231 on each screw rod 221 to slide toward or away from each other.

[0036] In some embodiments, the drive motor 222 is located at the end of the sub-frame 2 , and a hydraulic support leg 24 is rotatably provided on the sub-frame 2 , and the hydraulic support leg 24 rotates between the crossed support rods 22 .

[0037] In this embodiment, the hydraulic support legs 24 are pivoted to the end of the support rods 22 closest to the drive motor 222, and are positioned between the crossbars to keep them away from the RV tires. When parking, the hydraulic support legs 24 are pivoted perpendicular to the ground to support the RV tires. When driving, the hydraulic support legs 24 are pivoted parallel to the support rods 22 and retracted.

[0038] In some embodiments, reference Figure 2 and Figure 3 The end of the screw rod 221 closest to the drive motor 222 is coaxially connected to a first bevel gear 223. The hydraulic support leg 24 has a rotating column 241 rotatably connected to the subframe 2. The end of the rotating column 241, distal to the hydraulic support leg 24, extends into the support rod 22 and is coaxially connected to a second bevel gear 242. The second bevel gear 242 is rotatably connected to the first bevel gear 223. When the drive motor 222 drives the slide 23 away from the air spring 231, the screw rod 221, via the first bevel gear 223, drives the second bevel gear 242 to rotate, pivoting the hydraulic support leg 24 until it is perpendicular to the ground.

[0039] In this embodiment, the rotation axis of the screw rod 221 is perpendicular to the rotation axis of the hydraulic support leg 24. Both the first bevel gear 223 and the second bevel gear 242 are located within the support rod 22. A rotating column 241 rotates through the side wall of the support rod 22 and is coaxially connected to the second bevel gear 242. The end of the rotating column 241, distal from the second bevel gear 242, is coaxially connected to the end of the hydraulic support leg 24. This allows the screw rod 221 to rotate, driving the air springs 231 away from each other, while the first bevel gear 223 rotates the second bevel gear 242, thereby rotating the hydraulic support leg 24 until it is perpendicular to the ground.

[0040] In some embodiments, reference Figure 3 and Figure 4 A connecting rod 243 is slidably connected to the rotating column 241. A sliding groove 245 is defined within the rotating column 241, allowing the connecting rod 243 to slide in a direction perpendicular to the axis of the rotating column 241. A connecting groove 246 is defined at the end of the hydraulic support leg 24, connecting to the sliding groove 245. A connecting spring 244 is fixedly connected to the bottom of the sliding groove 245. The end of the connecting spring 244, distal from the bottom of the sliding groove 245, is connected to the connecting rod 243. The connecting spring 244 is used to force a portion of the connecting rod 243 into the connecting groove 246.

[0041] In this embodiment, the sliding direction of the connecting rod 243 is perpendicular to the rotation axis of the rotating column 241. When the hydraulic support leg 24 is perpendicular to the ground, the sliding direction of the connecting rod 243 within the sliding groove 245 becomes horizontal. When the connecting spring 244 is in its normal state, a portion of the connecting rod 243 is within the sliding groove 245 of the rotating column 241, while the other portion is within the connecting groove 246 of the hydraulic support leg 24. This creates a coaxial connection between the rotating column 241 and the end of the hydraulic support leg 24 via the connecting rod 243.

[0042] In some embodiments, a connecting groove 246 passes through the side wall of the end of the hydraulic support leg 24, and an abutment rod 131 is vertically slidably provided above the hydraulic support leg 24. The lower end of the abutment rod 131 slides in the connecting groove 246, and the abutment rod 131 only slides in the connecting groove 246.

[0043] In this embodiment, the abutment rod 131 always slides in the vertical direction. After the hydraulic support leg 24 is perpendicular to the ground, the abutment rod 131 slides and abuts against the outer wall of the hydraulic support leg 24. At this time, the sliding direction of the abutment rod 131 is perpendicular to the sliding direction of the connecting rod 243. When the hydraulic support leg 24 is retracted and rotated to the horizontal position, the hydraulic support leg 24 can be stored by magnetic connection with the sub-frame 21. At this time, the connecting groove 246 rotates with the hydraulic support leg 24 to face upward and directly opposite the abutment rod 131, so that the abutment rod 131 can be pressed into the connecting groove 246 and the connecting rod 243 can be pressed into the sliding groove 245. However, the abutment rod 131 is only in the connecting groove 246, which can realize the release of the coaxial connection between the rotating column 241 and the hydraulic support leg 24, so as to achieve relative rotation.

[0044] In some embodiments, reference Figure 1 and Figure 4 , a bracket 13 is fixed on the main frame 11. The end of the abutment rod 131 away from the hydraulic support leg 24 slides in the bracket 13. An abutment spring 132 is fixed in the bracket 13. The end of the abutment spring 132 away from the bracket 13 is fixed to the top of the abutment rod 131. The abutment spring 132 is used to push the abutment rod 131 into the connecting groove 246. The elastic force of the abutment spring 132 is greater than that of the connecting spring 244. Under the elastic force of the abutment spring 132, the abutment rod 131 pushes the connecting rod 243 into the slide groove 245 to release the coaxial connection between the hydraulic support leg 24 and the rotating column 241. A reset member 14 for resetting the connecting rod 243 is provided on the main frame 11.

[0045] In this embodiment, the bracket 13 is fixed on the side wall of the crossbeam of the main frame 11. The upper end of the abutment rod 131 is slidably arranged in the bracket 13, and the abutment rod 131 is slid in the vertical direction through the bracket 13. The elastic force of the abutment spring 132 is greater than the connecting spring 244, so that after the hydraulic support leg 24 is retracted, the abutment rod 131 slides into the connecting groove 246 and pushes the connecting rod 243 into the slide groove 245, thereby releasing the coaxial connection between the rotating column 241 and the hydraulic support leg 24. The reset member 14 is located on one side of the upper slide 233 of the main frame 11, so that the abutment rod 131 is reset and slid upward by the reset member 14, so that the connecting rod 243 partially slides into the connecting groove 246 to coaxially connect the rotating column 241 and the hydraulic support leg 24.

[0046] In some embodiments, reference Figure 3 and Figure 4 The reset member 14 includes a reset rod 141 slidably disposed on the main frame 11 and a first wedge block 142 disposed on the reset rod 141. The reset rod 141 slides between the abutment rod 131 and the guide rod 12. The first wedge block 142 is located on the top wall of the reset rod 141. A second wedge block 133 is disposed on the side wall of the abutment rod 131 facing the reset rod 141. When the reset rod 141 slides in a direction close to the hydraulic support leg 24, the first wedge block 142 pushes the second wedge block 133 to slide upward, thereby driving the abutment rod 131 to slide upward and disengage from the connecting groove 246, causing the connecting rod 243 to partially slide into the connecting groove 246.

[0047] In this embodiment, the reset rod 141 slides along the length of the guide rod 12. After the first wedge block 142 slides along with the reset rod 141 toward the hydraulic support leg 24, the second wedge block 133 slides upward due to the indirect contact with the inclined abutment surface of the first wedge block 142, thereby driving the abutment rod 131 to slide upward within the bracket 13, thereby compressing the abutment spring 132. It should be noted that the distance that the first wedge block 142 pushes the second wedge block 133 upward is the same as the distance that the abutment rod 131 withdraws from the connecting groove 246.

[0048] In some embodiments, reference Figure 1 and Figure 3A fixed column 143 is fixed to the main frame 11, and a reset rod 141 is slidably arranged on the side of the fixed column 143 facing the guide rod 12. A first reset block 144 is fixed to the end of the reset rod 141 close to the abutment rod 131, and a second reset block 145 is fixed to the end away from the abutment rod 131. The second reset block 145 and the fixed column 143 away from the abutment rod 131 are magnetically adsorbable. A reset spring 146 is fixed to the end of the reset rod 141 close to the abutment rod 131, and the end of the reset spring 146 away from the reset rod 141 is fixed to the fixed column 143. The reset spring 146 is used to pull the reset rod 141 to drive the second reset block 145 to disengage from the fixed column 143, and to cause the first wedge block 142 to push the second wedge block 133 to slide up. When the slide 233 abuts the first reset block 144, the first reset block 144 and the fixed column 143 attract each other, and the first wedge block 142 on the reset rod 141 disengages from the second wedge block 133. When the slide 233 abuts the second reset block 145, the first reset block 144 disengages from the fixed column 143, and the reset rod 141 is reset by the reset spring 146.

[0049] In this embodiment, the fixed column 143 is fixed to the side wall of the crossbeam of the main frame 11, that is, the side wall of the crossbeam where the guide rod 12 is located. The interior of the fixed column 143 is hollow and is located on the side of the bracket 13 facing the main frame 11. In other words, the opening of the hollow inner cavity of the fixed column 143 faces away from the bracket 13, so that the reset rod 141 can drive the first reset block 144 and the second reset block 145 to slide after the fixed column 143 slides. The first reset block 144 is located on the side of the reset rod 141 away from the fixed column 143 and abuts against the slide 233. At this time, the slide 23 under the air spring 231 is close to the drive motor 222, and the hydraulic support leg 24 has been rotated to be perpendicular to the ground.

[0050] It should be noted that the second reset block 145 is magnetic, and the end of the fixed post 143 away from the bracket 13 is made of a magnetic material, which can attract the adjacent second reset block 145. When the second reset block 145 and the end of the fixed post 143 away from the bracket 13 are attracted to each other, the reset spring 146 is in a stretched state, the first wedge 142 disengages from the second wedge 133, and the abutment rod 131 slides downward. The end of the reset rod 141 near the bracket 13 is connected to the reset spring 146. In the normal state, the reset spring 146 drives the first wedge 142 and the second wedge 133 on the reset rod 141 into abutment.

[0051] In some embodiments, reference Figure 3 and Figure 4When the upper end of the air spring 231 pushes against the first reset block 144, driving the second reset block 145 to disengage from the fixed column 143, the abutting rod 131 disengages from the connecting groove 246. Under the elastic force of the connecting spring 244, the connecting rod 243 partially slides into the connecting groove 246, coaxially connecting the hydraulic support leg 24 and the rotating column 241. When the slide 23 drives the air spring 231 to continue sliding toward the hydraulic support leg 24, the hydraulic support leg 24 rotates downward, and the abutting rod 131 slides and abuts against the outer wall of the hydraulic support leg 24.

[0052] In this embodiment, the upper end of the slide 233 pushes the first reset block 144 to drive the second reset block 145 to disengage from the adsorption of the fixed column 143, and the reset spring 146 drives the reset rod 141 to slide toward the bracket 13, so that the first wedge block 142 and the second wedge block 133 abut against each other again, driving the abutting rod 131 to slide up and disengage from the connecting groove 246, so that the connecting rod 243 partially slides into the connecting groove 246 under the elastic force of the connecting spring 244, connecting the hydraulic support leg 24 and the rotating column 241 coaxially. During this process, the hydraulic support legs 24 are in a horizontally retracted state.

[0053] In some embodiments, the fixed column 143 is tilted between the crossed guide rods 12, that is, the end of the fixed column 143 close to the second reset block 145 is closer to the guide rod 12 than the end of the fixed column 143 close to the first reset block 144. After the upper end of the air spring 231 presses against the first reset block 144, as the air spring 231 slides toward the hydraulic support leg 24, the upper end of the air spring 231 will detach from the first reset block 144 and slide past the first reset block 144.

[0054] In this embodiment, when the slide 233 slides toward the hydraulic support leg 24 along with the air spring 231, as the slide 233 slides, the slide 233 abuts against the first reset block 144. Since the first reset block 144 is farther away from the guide rod 12 than the second reset block 145, the slide 233 will slide over the first reset block 144 and then detach from the first reset block 144, causing the reset rod 141 to reset under the reset spring 146.

[0055] The implementation principle of an adjustable stable and balanced frame mounted on a new energy RV in the embodiment of the present application is as follows: under the drive of the driving motor 222, the screw rod 221 is driven to rotate, and the two slides 23 on the screw rod 221 slide toward or away from each other, thereby driving the air springs 231 on the same screw rod 221 to slide toward or away from each other, so as to adjust the distance between the air springs 231 between the main frame 1 and the sub-frame 2. When the carriage on the main frame 1 encounters sudden braking and starting acceleration during vehicle driving, the air springs 231 in a concentrated shape can buffer the carriage in the case of sudden braking and starting acceleration, thereby reducing the bumps and vibrations of the carriage on the chassis, and reducing the loads in various directions formed by the upper carriage on the sub-frame 2, so that the carriage and the chassis are more evenly stressed through the connection between the main frame 1 and the sub-frame 2, thereby increasing the service life of the connection between the carriage and the chassis.

[0056] When the drive motor 222 drives the distance between the air springs 231, the drive motor 222 first drives the air springs 231 to gather, that is, the air springs 231 slide on the guide rod 12 in a direction away from the drive motor 222 until the upper end of the air spring 231 abuts the second return block 145, and then the second return block 145 is moved to the magnetic attraction portion on the fixed column 143, fixing the second return block 145 and the fixed column 143. At this time, the return spring 146 on the return rod 141 is in a stretched state, but the first wedge block 142 has disengaged from the second wedge block 133, releasing the abutment on the abutment rod 131. Under the elastic force of the abutment spring 132, the abutment rod 131 slides into the connecting groove 246 and pushes the connecting rod 243 into the sliding groove 245, releasing the coaxial connection between the rotating column 241 and the hydraulic support leg 24. At this time, the driving motor 222 drives the air spring 231 to slide freely on the guide rod 12 between the first reset block 144 and the second reset block 145, so as to adjust the gathering distance between the air springs 231.

[0057] To release the state in which the drive motor 222 drives the air spring 231 to slide freely between the first reset block 144 and the second reset block 145 on the guide rod 12, it is only necessary to drive the motor 222 to drive the air spring 231 toward the drive motor 222, and make the upper end of the air spring 231 abut against the first reset block 144, and push the first reset block 144 to drive the reset rod 141 to slide toward the drive motor 222, so that the second reset block 145 is separated from the magnetic part of the fixed column 143; and then the reset rod 141 is reset under the pull of the reset spring 146, so that the first wedge block 142 pushes the second wedge block 133 to slide up, so that the abutting rod 131 slides up and disengages from the connecting groove 246, and the connecting rod 243 partially slides into the connecting groove 246 to establish a coaxial connection between the rotating column 241 and the hydraulic support leg 24. Then, even if the driving motor 222 drives the air springs 231 to move away from each other and drives the hydraulic support leg 24 to rotate to be perpendicular to the ground, the first reset block 144 of the reset rod 141 is pressed against the upper end of the air spring 231, so that the reset rod 141 continues to compress the reset spring 146 until the first wedge block 142 slides over the second wedge block 133; however, at this time, the abutting rod 131 slides against the outer peripheral wall of the hydraulic support leg 24, so that the second wedge block 133 remains located at the first wedge block 142 The hydraulic support leg 24 is retracted after the driving motor 222 drives the air spring 231 to gather and reset, and the hydraulic support leg 24 is retracted. The reset rod 141 drives the first wedge block 142 to slide to the bottom of the second wedge block 133 under the elastic force of the reset spring 146, until the first wedge block 142 slides over the second wedge block 133, and the abutment rod 131 is reset under the elastic force of the abutment spring 132 and slides into the connecting groove 246 to release the coaxial connection between the rotating column 241 and the hydraulic support leg 24. At this moment, the hydraulic support leg 24 has been retracted.

[0058] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An adjustable new energy RV upper stable and balanced frame, characterized in that: include: The main frame is used for fixed connection with the carriage, and includes a main frame body and cross-connected guide rods; The subframe is used to be fixedly connected to the vehicle chassis and includes a subframe body and cross-connected support rods; The yoke is symmetrically arranged with respect to the guide rod, and a screw rod is rotatably connected in the support rod. The screw rods in the cross-connected support rods are staggered in the vertical direction, and the two ends of the support rod are slidably connected to a slide seat, and the screw rod passes through and is threadedly connected to the two ends of the slide seat in opposite directions. An air spring is installed on the slide seat, and the end of the air spring away from the slide seat is slidably sleeved on the guide rod, and the end of the air spring and the guide rod sliding connection are both gathered toward the geometric center direction of the main frame. A driving motor is provided in the support rod to drive the screw rod to rotate and drive the slide seat to slide along the length direction of the screw rod.

2. The adjustable new energy RV upper mounted stable and balanced frame according to claim 1 is characterized in that: The driving motor is located at the end of the auxiliary frame. A hydraulic support leg is rotatably provided on the auxiliary frame. The hydraulic support leg rotates between the crossed support rods.

3. The adjustable new energy RV upper mounted stable and balanced frame according to claim 2 is characterized in that: The end of the screw rod close to the driving motor is coaxially connected to the first bevel gear, and the hydraulic support leg has a rotating column rotatably connected to the sub-frame. The end of the rotating column away from the hydraulic support leg penetrates into the support rod and is coaxially connected to the second bevel gear. The second bevel gear is rotatably connected to the first bevel gear. When the driving motor drives the slide to drive the air spring away, the screw rod drives the second bevel gear to rotate through the first bevel gear to rotate the hydraulic support leg to be perpendicular to the ground.

4. The adjustable new energy RV upper mounted stable and balanced frame according to claim 3 is characterized in that: A connecting rod is slidably connected in the rotating column, and a sliding groove is provided in the rotating column for the connecting rod to slide in a direction perpendicular to the axis of the rotating column. A connecting groove connected to the sliding groove is provided at the end of the hydraulic support leg, and a connecting spring is fixedly connected to the bottom of the sliding groove. The end of the connecting spring away from the bottom of the sliding groove is connected to the connecting rod, and the connecting spring is used to push a part of the connecting rod to slide into the connecting groove.

5. The adjustable new energy RV upper mounted stable and balanced frame according to claim 4 is characterized in that: The connecting groove passes through the side wall of the end of the hydraulic support leg. An abutment rod is provided above the hydraulic support leg for sliding in the vertical direction. The lower end of the abutment rod slides in the connecting groove, and the abutment rod only slides in the connecting groove.

6. The adjustable new energy RV upper mounted stable and balanced frame according to claim 5 is characterized in that: A bracket is fixed on the main frame, and the end of the abutment rod away from the hydraulic support leg slides in the bracket, and an abutment spring is fixed in the bracket, and the end of the abutment spring away from the bracket is fixed to the top of the abutment rod, and the abutment spring is used to push the abutment rod to slide into the connecting groove, and the elastic force of the abutment spring is greater than the connecting spring. Under the elastic force of the abutment spring, the abutment rod pushes the connecting rod into the sliding groove to release the coaxial connection between the hydraulic support leg and the rotating column, and a reset member for resetting the abutment rod is provided on the main frame.

7. The adjustable new energy RV upper mounted stable and balanced frame according to claim 6 is characterized in that: The reset member includes a reset rod slidably arranged on the main frame, a first wedge block arranged on the reset rod, the reset rod slides between the abutment rod and the guide rod, the first wedge block is located on the top wall of the reset rod, and the abutment rod is provided with a second wedge block on the side wall facing the reset rod. When the reset rod slides in the direction close to the hydraulic support leg, the first wedge block pushes the second wedge block to slide up, thereby driving the abutment rod to slide up and out of the connecting groove, so that the connecting rod partially slides into the connecting groove.

8. The adjustable new energy RV upper mounted stable and balanced frame according to claim 7 is characterized in that: The cam is fixed to the side panel that is located adjacent to the guide rail, and the cam is secured to the side panel that is located adjacent to the guide rail, and the cam is secured to the side panel that is located adjacent to the guide rail.

9. The adjustable new energy RV upper mounted stable and balanced frame according to claim 8 is characterized in that: When the upper end of the air spring pushes the first reset block to drive the second reset block to disengage from the fixed column, the abutment rod disengages from the connecting groove, and the connecting rod partially slides into the connecting groove under the elastic force of the connecting spring, coaxially connecting the hydraulic support leg and the rotating column, and when the slide seat drives the air spring to continue sliding toward the hydraulic support leg, the hydraulic support leg rotates downward, and the abutment rod slides and abuts against the outer wall of the hydraulic support leg.

10. The adjustable new energy RV upper body stable and balanced frame according to claim 8, characterized in that: The fixing column is tilted between the crossed guide rods, that is, the end of the fixing column close to the second reset block is closer to the guide rod than the end of the fixing column close to the first reset block. After the upper end of the air spring presses against the first reset block, as the air spring slides toward the hydraulic support leg, the upper end of the air spring will detach from the first reset block and slide past the first reset block.

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