Lead screw motor type vehicle box sliding-out system

Abstract

The invention relates to a lead screw motor type vehicle box sliding-out system. The lead screw motor type vehicle box sliding-out system comprises a sliding-out box, a bearing plate, a bearing box, a supporting frame, a lead screw motor, a first guide rail, a second guide rail, a first sliding block, a second sliding block, a third sliding block and a fourth sliding block. The sliding-out box is arranged at an opening of the vehicle body, bearing boxes of the same corresponding structure are arranged below the opposite side walls of the sliding-out box, the bearing plate is fixed to the bearing boxes, the first guide rail and the second guide rail are vertically parallel and fixed to the bearing boxes through the bearing plate, the first sliding block and the third sliding block are slidably connected with the first guide rail, and the second sliding block and the fourth sliding block are slidably connected with the second guide rail. The first sliding block, the second sliding block, the third sliding block and the fourth sliding block are fixed to the supporting frame, a long-strip-shaped opening is formed in the bottom of the bearing box, and the bearing box slides back and forth at the lower end of the supporting frame through the long-strip-shaped opening. The sliding-out and withdrawing of the vehicle box body can be realized, and the use space of the vehicle is increased.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle interior space expansion, and in particular to a screw motor type vehicle box slide-out system. Background Art

[0002] Existing vehicles and RVs are equipped with slide-out boxes to increase the internal usable space of the RV. The outer wall of the slide-out box is flush with the outside of the vehicle or trailer during driving. When the vehicle stops, the slide-out chamber slides outward from the opening of the vehicle, thereby increasing the internal usable space of the vehicle.

[0003] Patent CN202111541306.4 discloses an RV expansion mechanism and an RV, in which the sliding mechanism is located under and on both sides of the vehicle body. There is no integrated setting, which occupies a large space, is inconvenient to install, and runs unsteadily.

[0004] Patent US202117408020A discloses a slide-out device arranged on both sides of the slide-out box. Due to the complex mechanism used, the telescopic drive device is too high, occupies a large space, is inconvenient to maintain, and increases the cost of use.

[0005] In view of the above-mentioned related technologies, the inventor believes that the slide-out mechanism of the vehicle box slide-out system is relatively large, complicated to install, and has high cost. Therefore, it is believed that the slide-out mechanism of the vehicle box slide-out system has the problem of occupying a large space. Summary of the invention

[0006] In order to improve the problem that the sliding-out mechanism of a vehicle's slide-out box occupies a large space, the present invention provides a screw motor type vehicle box slide-out system, which can increase the vehicle's usable space and improve space utilization. Since the entire slide-out mechanism in the carrying box is integrated and connected to the bottom plate of the support frame, there is no need to disassemble the lower chassis of the vehicle body, and installation and disassembly are convenient. Only the bottom plate of the support frame needs to be fixed to the vehicle body, and the entire slide-out box can be set at the opening of the vehicle body.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A screw motor type vehicle box slide-out system comprises a slide-out box, a load-bearing plate, a support frame, a screw motor, a guide rail 1, a guide rail 2, a slide block 1, a slide block 2, a slide block 3, a slide block 4 and a bearing box. The slide-out box is arranged at the opening of the vehicle body, and a corresponding bearing box is arranged below the opposite side wall of the slide-out box. The two bearing boxes have the same internal structure, are arranged correspondingly, and move synchronously. The load-bearing plate is fixed on the load-bearing box, and the screw motor is fixed on the support frame, and both ends are fixed on the load-bearing plate. The guide rail 1 and the guide rail 2 are fixed to the load-bearing box in parallel up and down through the load-bearing plate, the slider 1 and the slider 3 are slidably connected to the guide rail 1, the slider 2 and the slider 4 are slidably connected to the guide rail 2, the slider 1, the slider 2, the slider 3, and the slider 4 are fixed on the support frame, the screw motor, guide rail 1, guide rail 2, slider 1, slider 2, slider 3, slider 4, the load-bearing plate, and part of the support frame (except the bottom plate) are integrated inside the bearing box, and a long strip opening is arranged at the bottom of the bearing box, and the bearing box slides back and forth at the lower end of the support frame through the long strip opening.

[0009] By adopting the above technical solution, the screw motor can drive the carrying box to slide back and forth, so as to realize the sliding out and retraction of the slide-out box. The screw motor, guide rail 1, guide rail 2, slider 1, slider 2, slider 3, slider 4, load-bearing plate, and part of the support frame (except the bottom plate) are integrated in the carrying box, which can isolate the influence of the outside world, facilitate installation and disassembly, have beautiful appearance and can increase the internal use space of the vehicle. The long strip opening at the bottom of the carrying box slides out and retracts from the lower end of the support frame. The bottom plate supports the entire slide-out box. There is no need to disassemble the vehicle chassis. The bottom plate of the support frame is directly fixed to the vehicle body. The entire slide-out box is suspended at the opening of the vehicle, and the support frame transfers the weight of the slide-out box to the vehicle body.

[0010] Preferably, the guide rail 1 and the guide rail 2 are driven by the fixed slider 1, slider 2, slider 3 and slider 4 to always maintain the cantilever setting when the slide-out box slides out and is retracted.

[0011] By adopting the above technical solution, guide rail one is cantilevered through slider one and slider three, and guide rail two is cantilevered through slider two and slider four to increase the sliding length of the slide-out box and increase the usable space in the car without the need for additional support.

[0012] Preferably, the slider 1 and the slider 2 are flush with each other in vertical direction, the slider 3 and the slider 4 are flush with each other in vertical direction, and the slider 1 and the slider 3 are arranged in parallel with the slider 2 and the slider 4.

[0013] By adopting the above technical solution, when the guide rails 1 and 2 slide back and forth, the force is balanced, the operation is smooth, and the friction is small.

[0014] Preferably, a fixing bracket 1 and a fixing bracket 2 are provided at both ends of the load-bearing plate, and both ends of the screw motor are fixed to the load-bearing plate through the fixing bracket 1 and the fixing bracket 2.

[0015] By adopting the above technical solution, the bearing plate supports the threaded screw and can ensure that the central axis of the threaded screw is always in a straight line. In addition, the motor on the screw motor drives the threaded screw to rotate, thereby driving the bearing plate to slide.

[0016] Preferably, the support frame comprises an upper plate, a lower plate, a bottom plate, a motor support frame and a reinforcing plate, the lead screw motor passes through the motor support frame and the reinforcing plate, and the motor of the lead screw motor is fixed on the motor support frame.

[0017] By adopting the above technical solution, the motor of the screw motor is fixed on the motor support frame, the motor is kept stationary, and the support frame bears the weight of the screw motor.

[0018] Preferably, the slider 1 and the slider 3 are fixed on the lower plate, and the slider 2 and the slider 4 are fixed on the upper plate.

[0019] By adopting the above technical solution, the slider is kept stationary and the guide rail can slide through the slider.

[0020] Preferably, the base plate is fixed to the vehicle body.

[0021] By adopting the above technical solution, the weight borne by the support frame is transferred to the vehicle body through the bottom plate.

[0022] Preferably, the load-bearing plate, the bearing box and the lead screw motor are parallel along the length direction.

[0023] By adopting the above technical solution, when the screw motor drives the load-bearing plate to move, and then drives the load-bearing box to slide back and forth, it can ensure that the force is balanced during the movement, the operation is smooth, and the friction is small.

[0024] Preferably, a detachable inspection panel is provided on the side of the carrying box close to the interior of the carriage.

[0025] By adopting the above technical solution, installation is convenient, and when a fault occurs inside the carrying box, it can be repaired by removing the inspection panel, thereby reducing the maintenance cost.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The screw motor, guide rail 1, guide rail 2, slider 1, slider 2, slider 3, slider 4, load-bearing plate, and part of the support frame (except the bottom plate) are integrated in the bearing box, which can isolate the influence of the outside world, facilitate installation and disassembly, have beautiful appearance and can increase the internal use space of the vehicle.

[0028] 2. Since the entire slide-out mechanism inside the carrying box is integrated and connected to the bottom plate of the support frame, there is no need to disassemble the lower chassis of the vehicle body. The installation and disassembly are convenient. Only the bottom plate of the support frame is fixed to the vehicle body, and the entire slide-out box can be set at the opening of the vehicle body. The support frame transfers the weight of the slide-out box to the vehicle body.

[0029] 3. The inspection panel on the carrying box is removable. When a fault occurs inside the carrying box, it can be repaired by removing the inspection panel, thus reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0031] In the figure: 1 slide-out box; 2 carrying box; 203 inspection plate; 3 support frame; 3a upper plate; 3b lower plate; 3c bottom plate; 4 screw motor; 4a fixing bracket 1; 4b fixing bracket 2; 5a motor support frame; 5b reinforcement plate; 6a guide rail 1; 6b guide rail 2; 8a slider 1; 8b slider 2; 8c slider 3; 8d slider 4; 9 long strip opening; 25 vehicle body.

[0032] Figure 1 It is an oblique view of the slide-out box sliding out from the opening on the vehicle body in a specific embodiment of the present invention.

[0033] Figure 2 It is an oblique view of the slide-out box being completely retracted from the opening on the vehicle body in a specific embodiment of the present invention.

[0034] Figure 3 It is a front cross-sectional view of a slide-out box in a specific embodiment of the present invention.

[0035] Figure 4 It is a schematic diagram of the slide-out mechanism in a specific implementation manner of the present invention.

[0036] Figure 5 It is a half-section view of the interior of the carrying box when the slide-out box body is completely slid out in a specific embodiment of the present invention.

[0037] Figure 6 It is a half-section view of the interior of the carrying box when the sliding box body is fully retracted in a specific embodiment of the present invention.

[0038] Figure 7 7A is an oblique view of the slide-out box body sliding out; 7B is a side view of the slide-out box body sliding out; 7C is a cross-sectional view of the load-bearing box after the slide-out box body slides out.

[0039] Figure 8 8A is an oblique view of the slide-out box body being retracted; 8B is a side view of the slide-out box body being retracted; and 8C is a cross-sectional view of the carrying box after the slide-out box body is retracted. DETAILED DESCRIPTION

[0040] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0041] Reference Figure 1 , Figure 2 As shown: the slide-out box 1 is arranged at the opening of the vehicle body 25. When the vehicle is stationary, the slide-out box 1 completely slides out from the opening on the vehicle body 25 to increase the usable space inside the vehicle. After the slide-out box 1 is retracted, it is flush with the appearance of the vehicle body 25 and does not affect the overall aesthetic effect.

[0042] Reference Figure 3 , Figure 4 As shown: A screw motor type vehicle box slide-out system includes a slide-out box 1, a bearing plate 7, a support frame 3, a screw motor 4, a guide rail 1 6a, a guide rail 2 6b, a slider 1 8a, a slider 2 8b, a slider 3 8c, a slider 4 8d and a bearing box 2. The slide-out box 1 is made of aluminum alloy or other materials with relatively light structural rigidity. A corresponding bearing box 2 is arranged below the opposite side wall of the slide-out box 1. The two bearing boxes 2 have the same internal structure, are arranged correspondingly, move synchronously, and bear the weight of the slide-out box 1. The screw motor 4, the guide rail 1 6a, the guide rail 2 6b, the slider 1 8a, the slider 2 8b, the slider 3 8c, the slider 4 8d, the bearing plate 7, and part of the support frame 3 (except the bottom plate) are integrated inside the bearing box 2, which can save space and facilitate quick installation and disassembly.

[0043] Reference Figure 5 , Figure 6As shown: the load-bearing plate 7 is fixed on the bearing box 2, and fixed bracket 1 4a and fixed bracket 2 4b are arranged at both ends of the load-bearing plate 7. The support frame 3 includes an upper plate 3a, a lower plate 3b, a bottom plate 3c, a motor support frame 5a and a reinforcing plate 5b. The screw motor 4 passes through the motor support frame 5a and the reinforcing plate 5b. The motor of the screw motor 4 is fixed on the motor support frame 5a, and both ends are fixed to the load-bearing plate 7 through fixed bracket 1 4a and fixed bracket 2 4b. The guide rail 1 6a and the guide rail 2 6b are fixed to the bearing box 2 through the load-bearing plate 7 in parallel up and down. The slider 1 8a and the slider 3 8c are slidably connected to the guide rail 1 6a, the slider 2 8b and the slider 4 8d are slidably connected to the guide rail 2 6b, the slider 1 8a and the slider 3 8c are fixed on the lower plate 3b, and the slider 2 8b and the slider 4 8d are fixed on the upper plate 3a. The slider 1 8a and the slider 2 8b are flush with each other, and the slider 3 8c and the slider 4 8d are flush with each other. The slider 1 8a and the slider 3 8c are arranged in parallel with the slider 2 8b and the slider 4 8d. The guide rail 1 drives the slide-out box 1 through the slider 1 and the slider 3, and the guide rail 2 drives the slide-out box 1 through the slider 2 and the slider 4 to always maintain the cantilever setting when sliding out and retracting. A detachable inspection plate 203 is provided on the side of the carrying box 2 close to the interior of the carriage. The interior of the carrying box 2 can be installed and inspected by removing the inspection plate 203. A long opening 9 is provided at the bottom of the carrying box 2. The carrying box 2 slides back and forth on both sides of the support frame 3 through the long opening 9.

[0044] Reference Figure 7 As shown: when the screw motor vehicle slide-out system slides out, the motor on the screw motor drives the threaded screw to rotate, thereby driving the bearing box 2 and the load-bearing plate 7 to slide out together through the guide rail 1 6a and the guide rail 2 6b. When the slide-out box slides to the set length, the slide-out process ends. The support frame 3 remains stationary. After the slide-out box 1 slides out, the bearing box 2 transfers the weight of the slide-out box 1 to the load-bearing plate 7. The load-bearing plate 7 transfers the weight of the slide-out box 1 to the slider 1 8a, the slider 2 8b, the slider 3 8c, and the slider 4 8d through the guide rail 1 6a and the guide rail 2 6b, and then to the support frame 3, and the support frame 3 finally transfers the weight to the vehicle body 25.

[0045] Reference Figure 8 As shown: when the screw motor vehicle slide-out system is retracted, the motor on the screw motor drives the threaded screw to rotate in the opposite direction, thereby driving the load-bearing box 2 and the load-bearing plate 7 to be retracted inward through the guide rail 1 6a and the guide rail 2 6b. When the slide-out box 1 and the vehicle body 25 are flush in appearance, the retraction process is completed.

[0046] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A screw motor type vehicle box slide-out system, comprising a slide-out box (1), a load-bearing plate (7), a bearing box (2), a support frame (3), a screw motor (4), a guide rail 1 (6a), a guide rail 2 (6b), a slider 1 (8a), a slider 2 (8b), a slider 3 (8c) and a slider 4 (8d). The slide-out box (1) is arranged at the opening of the vehicle body (25), and a corresponding bearing box 2 is arranged below the opposite side wall of the slide-out box 1. The two bearing boxes 2 have the same internal structure, are arranged correspondingly, and move synchronously. The load-bearing plate (7) is fixed on the bearing box (2), and the guide rail 1 (6a) and the guide rail 2 (6b) are fixed on the bearing box (2) in parallel up and down through the load-bearing plate (7). The slider 1 (8a) and the slider 3 (8c) are slidably connected to the guide rail 1 (6a), and the slider 2 (8b) and the slider 4 (8d) are slidably connected to the guide rail 2 (6b). The slider 1 (8a), the slider 2 (8b), the slider 3 (8c), and the slider 4 (8d) are fixed on the support frame; the lead screw motor (4), the guide rail 1 (6a), the guide rail 2 (6b), the slider 1 (8a), the slider 2 (8b), the slider 3 (8c), the slider 4 (8d), the load-bearing plate (7), and part of the support frame (3) (except the bottom plate) are integrated inside the carrying box (2); a long opening (9) is provided at the bottom of the carrying box (2), and the carrying box (2) slides back and forth at the lower end of the support frame (3) through the long opening (9).

2. A screw motor type vehicle box slide-out system according to claim 1, characterized in that: The guide rail 1 (6a) and the guide rail 2 (6b) drive the slide-out box (1) to always maintain a cantilever setting when sliding out and retracting through the fixed slider 1 (8a), the slider 2 (8b), the slider 3 (8c) and the slider 4 (8d).

3. A screw motor type vehicle box slide-out system according to claim 2, characterized in that: The slider 1 (8a) and the slider 2 (8b) are flush with each other vertically, the slider 3 (8c) and the slider 4 (8d) are flush with each other vertically, and the slider 1 (8a) and the slider 3 (8c) are arranged in parallel with the slider 2 (8b) and the slider 4 (8d).

4. A screw motor type vehicle box slide-out system according to claim 3, characterized in that: A fixing bracket 1 (4a) and a fixing bracket 2 (4b) are provided at both ends of the load-bearing plate (7), and both ends of the lead screw motor (4) are fixed to the load-bearing plate (7) via the fixing bracket 1 (4a) and the fixing bracket 2 (4b).

5. The screw motor type vehicle box slide-out system according to claim 4, characterized in that: The support frame (3) comprises an upper plate (3a), a lower plate (3b), a bottom plate (3c), a motor support frame (5a) and a reinforcing plate (5b); the lead screw motor (4) passes through the motor support frame (5a) and the reinforcing plate (5b); and the motor of the lead screw motor (4) is fixed on the motor support frame (5a).

6. The screw motor type vehicle box slide-out system according to claim 5, characterized in that: The slider one (8a) and the slider three (8c) are fixed on the lower plate (3b), and the slider two (8b) and the slider four (8d) are fixed on the upper plate (3a).

7. A screw motor type vehicle box slide-out system according to claim 6, characterized in that: The bottom plate (3c) is fixed on the vehicle body (25).

8. The screw motor type vehicle box slide-out system according to claim 7, characterized in that: The load-bearing plate (7), the bearing box (2) and the lead screw motor (4) are parallel along the length direction.

9. The screw motor type vehicle box slide-out system according to claim 8, characterized in that: A detachable inspection panel (203) is provided on one side of the carrying box (2) close to the interior of the carriage.

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