Screw type vehicle box sliding-out system

Abstract

The utility model relates to a spiral vehicle box sliding-out system which comprises a sliding-out box, a spiral motion assembly, a driving device, a supporting frame and a bearing box, the sliding-out box is arranged at an opening of a vehicle body, the spiral motion assembly is fixed to the upper portion of the supporting frame, and the driving device is fixed to the uppermost portion in the bearing box; the spiral movement assembly, the driving device and part of the supporting frame are integrally arranged in the bearing box, and the bearing box spirally and linearly moves back and forth at the lower end of the supporting frame through the long-strip-shaped opening. According to the sliding-out box, sliding-out and withdrawing of the vehicle box can be achieved, the use space of the vehicle is increased, a chassis on the lower portion of the vehicle body does not need to be detached, the whole sliding-out box can be fixed to the opening of the vehicle body only by fixing the bottom plate of the supporting frame to the vehicle body, space can be saved, and the sliding-out box is neat, attractive and convenient to install and detach.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle interior space expansion, and particularly to a spiral vehicle box sliding-out system. Background Art

[0002] Existing vehicles and caravans are equipped with sliding-out boxes to increase the usable space inside the caravan. The outer wall of the sliding-out box is flush with the outside of the vehicle or trailer during driving. When the vehicle stops, the sliding-out room is slid outwards from the opening of the vehicle, thereby increasing the usable space inside the vehicle.

[0003] CN202111541306.4 discloses a caravan expansion mechanism and a caravan. The sliding-out mechanism is located under and on both sides of the vehicle body, without integrated setting, occupying a large space, being inconvenient to install, and having unstable operation.

[0004] US202117408020A discloses a sliding-out device arranged on both sides of the sliding-out box. Due to the complex mechanism used, the telescopic driving device is too high, occupying a large space, being inconvenient to maintain, and increasing the use cost.

[0005] In view of the above related technologies, the inventor believes that the sliding-out mechanism of the vehicle box sliding-out system is relatively large, complex to install, and costly. Therefore, it is considered that the sliding-out mechanism of the vehicle sliding-out box has the problem of large space occupation. Summary of the Invention

[0006] In order to improve the problem of large space occupation of the sliding-out mechanism of the vehicle sliding-out box, the present invention provides a spiral vehicle box sliding-out system. The spiral vehicle box sliding-out system is integrally arranged under both sides of the box, suspending and bearing the weight of the sliding-out box. When used in the vehicle sliding-out system, it can save space, improve space utilization rate, and because the entire sliding-out mechanism inside the bearing box is integrally arranged and connected to the bottom plate of the support frame, it is not necessary to disassemble the lower chassis of the vehicle body. The installation and disassembly are convenient. Only by fixing the bottom plate of the support frame on the vehicle body, the entire sliding-out box can be arranged 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 spiral vehicle box sliding-out system includes a sliding-out box, a spiral motion assembly, a driving device, a support frame, and a bearing box. The sliding-out box is arranged at the opening of the vehicle body. The spiral motion assembly is fixed above the support frame. The driving device is fixed at the uppermost part inside the bearing box. The spiral motion assembly, the driving device, and part of the support frame are integrally arranged inside the bearing box. A long strip opening is arranged at the bottom of the bearing box. 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 spiral motion assembly, the driving device, and part of the support frame are integrally arranged in the bearing box, which can isolate the influence of the outside world on the spiral motion assembly and the driving device, facilitate installation and disassembly, have a beautiful appearance, and can increase the internal usable space of the vehicle.

[0010] Preferably, the spiral motion assembly includes a ball screw base, a ball screw, a ball nut, a ball nut flange, a first bearing, a second bearing, a first flange, a second flange, and a large gear. The first bearing and the second bearing are provided at both ends of the ball screw. One end of the ball screw is fixed to the first flange through the first bearing, and the other end of the ball screw is fixed to the second flange through the second bearing. The large gear is provided at one end of the ball screw close to the first bearing. The ball screw spirally moves inside the ball nut.

[0011] By adopting the above technical solution, the large gear drives the ball screw to spirally move inside the ball nut. The ball screw rotates along the central axis of the ball screw. Through the spiral forward and reverse movement directions of the ball screw, the sliding out and retracting are realized. The ball screw bears the weight of the sliding out of the box body. The ball screw transmits the weight to the ball nut through the balls, and then the ball nut transmits it to the ball screw base.

[0012] Preferably, a plurality of circulating balls are arranged inside the ball nut.

[0013] By adopting the above technical solution, the ball screw can reduce the friction of the spiral motion of the ball screw by circulating rotation with the circulating balls.

[0014] Preferably, the driving device includes a driving seat, a motor, a speed reducer, and a small gear. The motor is installed on the driving seat. The output shaft of the motor is connected with the speed reducer, and the output shaft of the speed reducer is connected with the small gear. The motor drives the small gear to rotate through the speed reducer.

[0015] By adopting the above technical solution, the driving device drives the large gear on the ball screw to rotate through the small gear, so as to realize the driving of the spiral motion assembly.

[0016] Preferably, a long adjusting hole is arranged at the top of the driving seat, and a driving seat fixing hole is arranged at the top of the bearing box. The driving seat fixing hole is correspondingly arranged with the long adjusting hole at the top of the driving seat.

[0017] By adopting the above technical solution, the top of the driving seat is fixed to the inner top of the bearing box through the cooperation of the long adjusting hole and the driving seat fixing hole.

[0018] Preferably, the support frame includes a top plate, a vertical plate, and a bottom plate.

[0019] By adopting the above technical solution, the top plate of the support frame supports the screw motion assembly, the long strip opening at the bottom of the bearing box slides out from the vertical plate of the support frame, the bottom plate supports the entire sliding-out box body, and there is no need to disassemble the vehicle chassis. The bottom plate of the support frame is directly fixed on the vehicle body, and the entire sliding-out box body is suspended at the opening of the vehicle. The support frame transfers the weight of the sliding-out box body to the vehicle body.

[0020] Preferably, a load-bearing maintenance plate is provided at one end of the bearing box, and a load-bearing plate is provided at the other end.

[0021] By adopting the above technical solution, the load-bearing maintenance plate and the load-bearing plate jointly bear the weight of the sliding-out box body. The load-bearing maintenance plate and the load-bearing plate transfer the weight of the sliding-out box body to the ball screw. The ball screw transfers it to the ball nut through the balls, and the ball nut transfers it to the ball screw base, and the ball screw base transfers it to the support frame, and finally the support frame transfers it to the vehicle body.

[0022] Preferably, the load-bearing maintenance plate is detachable.

[0023] By adopting the above technical solution, it is convenient for installation. When a failure occurs inside the bearing box, the load-bearing maintenance plate can be disassembled for maintenance, reducing the maintenance cost.

[0024] Preferably, first flange fixing holes are provided on the upper surface of the load-bearing maintenance plate, and second flange fixing holes are provided on the load-bearing plate.

[0025] By adopting the above technical solution, the first flange can be fixed on the load-bearing maintenance plate through the first flange fixing holes, and the second flange can be fixed on the load-bearing plate through the second flange fixing holes.

[0026] Preferably, a control component is provided at the bottom of the bearing box near the load-bearing plate.

[0027] By adopting the above technical solution, when the sliding-out box body is retracted, when the control component detects the vertical plate of the support frame, the retracting movement stops, and the sliding-out box body is completely retracted.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. Integrating the screw motion assembly, the driving device, and part of the support frame in the bearing box can isolate the influence of the outside world on the screw motion assembly and the driving device, facilitate installation and disassembly, have a beautiful appearance, and can increase the internal use space of the vehicle.

[0030] 2. Since the entire sliding-out mechanism inside the bearing box is integrally 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. Just fix the bottom plate of the support frame on the vehicle body, and the entire sliding-out box body can be arranged at the opening of the vehicle body.

[0031] 3. The load-bearing maintenance plate on the load-bearing box is detachable. When a fault occurs inside the load-bearing box, the load-bearing maintenance plate can be removed for maintenance, reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0033] In the figures: 1 sliding-out box body; 2 load-bearing box; 3 support frame; 301 top plate; 302 bottom plate; 303 vertical plate; 4 ball screw base; 5 ball screw; 6 ball nut; 7 circulating ball; 8 ball nut flange; 9 speed reducer; 10 motor; 11 drive seat; 12 large gear; 13 small gear; 14 load-bearing maintenance plate; 15 load-bearing plate; 16 long strip opening; 17a first flange; 17b second flange; 18a first bearing; 18b second bearing; 19 first flange fixing hole; 20 second flange fixing hole; 21 drive seat fixing hole; 22 long strip adjustment fixing hole; 23 control component; 25 vehicle body; 30 spiral motion component; 34 drive device.

[0034] Figure 1 It is an oblique view of the sliding-out box body sliding out from the opening of the vehicle body in the specific embodiment of the present invention.

[0035] Figure 2 It is an oblique view of the sliding-out box body being completely retracted from the opening of the vehicle body in the specific embodiment of the present invention.

[0036] Figure 3 It is a front cross-sectional view of the sliding-out box body in the specific embodiment of the present invention.

[0037] Figure 4 It is a schematic diagram of the internal mechanism of the load-bearing box in the specific embodiment of the present invention.

[0038] Figure 5 It is an exploded view of the spiral motion component in the specific embodiment of the present invention.

[0039] Figure 6 It is an exploded view of the drive device in the specific embodiment of the present invention.

[0040] Figure 7 It is a schematic diagram of the structure of the support frame in the specific embodiment of the present invention.

[0041] Figure 8 It is a schematic diagram of the structure of the load-bearing box body in the specific embodiment of the present invention.

[0042] Figure 9 This is a schematic structural diagram of the installation of the control component in the specific embodiment of the present invention.

[0043] Figure 10 This is the front orthographic view inside the carrier box in the specific embodiment of the present invention.

[0044] Figure 11 This is the rear orthographic view inside the carrier box in the specific embodiment of the present invention.

[0045] Figure 12 This is a partial internal unfolded view after the carrier box is retracted in the specific embodiment of the present invention.

[0046] Figure 13 This is a full internal unfolded view after the carrier box is retracted in the specific embodiment of the present invention.

[0047] Figure 14 This is a full internal unfolded view after the carrier box slides out in the specific embodiment of the present invention.

[0048] Figure 15 This is an exploded schematic view of the box body sliding-out system in the specific embodiment of the present invention.

[0049] Figure 16 a, 16b, 16c are schematic structural diagrams of the internal structure after the sliding box body slides out in the specific embodiment of the present invention.

[0050] Figure 17 a, 17b, 17c are schematic structural diagrams of the internal structure after the sliding box body is retracted in the specific embodiment of the present invention. Specific Embodiment

[0051] To make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in this specific embodiment. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this patent.

[0052] Refer to Figure 1-2 It can be seen that when the vehicle is stationary, the sliding box body 1 completely slides out from the opening on the vehicle body 25, increasing the usable space inside the vehicle body 25. After the sliding box body 1 is retracted, it is flush with the appearance of the vehicle body 25, without affecting the overall aesthetic effect.

[0053] Refer to Figure 3 、 Figure 4, A spiral vehicle box sliding-out system includes a sliding-out box body 1, a spiral motion assembly 30, a driving device 34, a support frame 3, and a bearing box 2. The sliding-out box body 1 is made of aluminum alloy or other materials with relatively light structural rigidity. Below the opposite side walls of the sliding-out box body 1, there are corresponding bearing boxes 2. The internal structures of the two bearing boxes 2 are the same, are correspondingly arranged, and move synchronously, bearing the weight of the sliding-out box body 1. The spiral motion assembly 30, the driving device 34, and part of the support frame 3 are integrally arranged inside the bearing box 2, which can save space and facilitate quick installation and disassembly.

[0054] Refer to Figure 5 As shown, the spiral motion assembly 30 includes a ball screw base 4, a ball screw 5, a ball nut 6, circulating balls 7, a ball nut flange 8, a first bearing 18a, a second bearing 18b, a first flange 17a, a second flange 17b, and a large gear 12. Both ends of the ball screw 5 are provided with a first bearing 18a and a second bearing 18b. One end of the ball screw 5 is fixed in the first flange 17a through the first bearing 18a, and the other end of the ball screw 5 is fixed in the second flange 17b through the second bearing 18b. The ball screw 5 spirally moves inside the ball nut 6, and circulating balls 7 are arranged inside the ball nut 6. Due to the circulating rolling of the circulating balls 7, the ball screw 5 can reduce the friction of the spiral motion. The ball nut 6 is fixed inside the ball screw base 4 through the ball nut flange 8 and remains stationary.

[0055] Refer to Figure 6 As shown, the driving device 34 includes a driving seat 11, a motor 10, a speed reducer 9, and a small gear 13. The motor 10 is installed on the driving seat 11. The output shaft of the motor 10 is connected with a speed reducer 9, and a small gear 13 is connected to the output shaft of the speed reducer 9. The motor 10 drives the small gear 13 to rotate through the speed reducer 9. A long strip adjustment and fixing hole 22 is arranged at the top of the driving seat 11.

[0056] Refer to Figure 7 As shown: The support frame 3 includes a top plate 301, a vertical plate 303, and a bottom plate 302.

[0057] Refer to Figure 8 As shown: On the front and back sides of the bearing box 2, there are a load-bearing maintenance plate 14 and a load-bearing plate 15. A first flange fixing hole 19 is arranged on the upper surface of the load-bearing maintenance plate 14, a second flange fixing hole 20 is arranged on the load-bearing plate 15, a driving seat fixing hole 21 is arranged at the top of the bearing box 2, and a long strip opening 16 is arranged at the bottom.

[0058] Refer to Figure 9 As shown: A control component 23 is arranged at the bottom on one side of the bearing box 2 close to the load-bearing plate 15. When the sliding-out box body 1 is retracted, when the control component detects the vertical plate of the support frame, the retracting motion stops, ensuring that the sliding-out box body 1 is completely retracted.

[0059] Refer to Figure 10 as shown: It is a front sectional view inside the carrier box 2, and it can be seen that the pinion 13 meshes with the large gear 12.

[0060] Refer to Figure 11 as shown: It is a rear sectional view inside the carrier box 2, and the connection relationship between the carrier box 2 and the support frame 3 can be seen.

[0061] Refer to Figures 12-15 In summary, the bottom of the helical motion assembly 30 is fixed on the top plate 301 of the support frame 3 through the ball screw base 4. One end of the ball screw 5 is provided with a first bearing 18a, and the other end is provided with a second bearing 18b. The first bearing 18a and the second bearing 18b are fixed on the first flange 17a and the second flange 17b. The first flange 17a is fixed on the load-bearing maintenance plate 14 through the first flange fixing hole 19, and the second flange 17b is fixed on the load-bearing plate 15 through the second flange fixing hole 20.

[0062] The driving device 34 is fixed at the uppermost part inside the carrier box 2 through the long adjusting hole 22 and the driving seat fixing hole 21 of the carrier box 2. The pinion 13 meshes with the large gear 12 of the helical motion assembly 30. The sliding-out box 1 is fixed on the vehicle body 25 through the bottom plate 302 of the support frame 3. When sliding out, it slides out through the long opening 16 at the bottom of the carrier box 2. After the sliding-out box 1 slides out, the carrier box 2 bears the helical motion assembly 30 and the driving device 34, and the weight of the sliding-out box 1 is transmitted to the vehicle body 25 through the support frame 3.

[0063] Refer to Figure 16 as shown in a, 16b, 16c: Schematic diagram of the helical vehicle sliding-out system after sliding out. The motor 10 of the driving device 34 drives the pinion 13 to rotate through the speed reducer 9. The pinion 13 drives the large gear 12 to rotate. The large gear 12 drives the ball screw 5 to perform helical motion. The ball screw 5 rotates along the central axis of the ball screw 5. The ball screw 5 moves through the ball nut 6, driving the carrier box 2 to move, as shown by the arrow A. The ball nut 6 remains stationary all the time. The carrier box 2 drives the sliding-out box 1 to slide out from the opening of the vehicle body 25 until the sliding-out box 1 completely slides out to the stop position at the preset length, and the sliding-out process ends. The support frame 3 remains stationary all the time. After the sliding-out box 1 slides out, the load-bearing maintenance plate 14 and the load-bearing plate 15 transfer the weight of the sliding-out box 1 to the ball screw 5. The ball screw 5 transfers it to the ball nut 6 through the ball 7, the ball nut 6 then transfers it to the ball screw base 4, the ball screw base 4 then transfers it to the support frame 3, and the support frame 3 finally transfers it to the vehicle body 25.

[0064] The bearing box 2 bears the weights of the spiral motion assembly 30, the driving device 34 and the sliding-out box body 1, and is transmitted to the vehicle body 25 through the support frame 3. The load-bearing maintenance plate 14 is detachable. When a fault occurs inside the bearing box 2, maintenance can be carried out by removing the load-bearing maintenance plate 14 without opening the entire bearing box 2, which is convenient for later use. The spiral motion assembly 30, the driving device 34 and part of the support frame 5 are integrally arranged inside the bearing box 2, which can save space, facilitate quick installation and disassembly, and has a beautiful appearance.

[0065] Referring to Figure 17 As shown in FIGS. a, 17b, and 17c: Schematic diagram of the retracted spiral vehicle sliding-out system. The motor 10 of the driving device 34 drives the pinion 13 to rotate in the reverse direction through the reducer 9. The pinion 13 drives the large gear 12 to rotate in the reverse direction. The large gear 12 drives the ball screw 5 to move in the reverse direction inside the ball nut 6, as shown by the arrow B, driving the bearing box 2 to retract. The ball nut 6 remains stationary all the time. The ball screw 5 rotates in the reverse direction along the central axis of the ball screw 5. The ball screw 5 drives the bearing box 2 to retract into the vehicle. When the control component 23 detects the vertical plate of the support frame, the retraction movement stops, and the sliding-out box body 1 is completely retracted.

[0066] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can 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 spiral vehicle box slide-out system, comprising a slide-out box (1), a spiral motion component (30), a driving device (34), a support frame (3) and a carrying box (2), wherein the slide-out box (1) is arranged at an opening of a vehicle body (25), the spiral motion component (30) is fixed above the support frame (3), the driving device (34) is fixed at the top of the inside of the carrying box (2), the spiral motion component (30), the driving device (34) and part of the support frame (3) are integrated and arranged inside the carrying box (2), a long strip opening (16) is arranged 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 strip opening (16).

2. A spiral vehicle box slide-out system according to claim 1, characterized in that: The spiral motion assembly (30) comprises a ball screw base (4), a ball screw (5), a ball nut (6), a ball nut flange (8), a first bearing (18a), a second bearing (18b), a first flange (17a), a second flange (17b) and a large gear (12); the first bearing (18a) and the second bearing (18b) are provided at both ends of the ball screw (5); one end of the ball screw (5) is fixed to the first flange (17a) via the first bearing (18a); the other end of the ball screw (5) is fixed to the second flange (17b) via the second bearing (18b); the large gear (12) is provided at one end of the ball screw (5) close to the first bearing (18a); and the ball screw (5) spirally moves inside the ball nut (6).

3. A spiral vehicle box slide-out system according to claim 2, characterized in that: The ball nut (6) is provided with circulating balls (7) therein.

4. The spiral vehicle box slide-out system according to claim 1, characterized in that: The driving device (34) comprises a driving seat (11), a motor (10), a reducer (9) and a pinion (13); the motor (10) is mounted on the driving seat (11); the output shaft of the motor (10) is connected to the reducer (9); the output shaft of the reducer (9) is connected to the pinion (13); the motor (10) drives the pinion (13) to rotate via the reducer (9).

5. The spiral vehicle box slide-out system according to claim 4, characterized in that: The top of the driving seat (11) is provided with a long adjustment hole (22), and the top of the carrying box (2) is provided with a driving seat fixing hole (21), and the driving seat fixing hole (21) is arranged corresponding to the long adjustment hole (22) on the top of the driving seat (11).

6. The spiral vehicle box slide-out system according to claim 1, characterized in that: The support frame (3) comprises a top plate (301), a vertical plate (303) and a bottom plate (302).

7. The spiral vehicle box slide-out system according to claim 1, characterized in that: A load-bearing inspection plate (14) is provided at one end of the carrying box (2), and a load-bearing plate (15) is provided at the other end.

8. The spiral vehicle box slide-out system according to claim 7, characterized in that: The load-bearing inspection plate (14) is detachable.

9. The spiral vehicle box slide-out system according to claim 7, characterized in that: The load-bearing inspection plate (14) is provided with a first flange fixing hole (19) on its upper surface, and the load-bearing plate (15) is provided with a second flange fixing hole (20).

10. The spiral vehicle box slide-out system according to claim 9, characterized in that: A control component (23) is arranged at the bottom of one side of the carrying box (2) close to the load-bearing plate.

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