Combined guide rail type vehicle box two-stage sliding-out system

Abstract

The application relates to a combined guide rail type vehicle box two-stage sliding-out system, which comprises a driving device, a support frame, a combined guide rail mechanism, a bearing box and a sliding-out box. One side of the combined guide rail mechanism is fixed on the support frame, and the other side is fixed on the bearing box; the driving device is fixed on the uppermost part of the support frame; the support frame is fixed on a vehicle body; the driving device, part of the support frame (except the bottom plate), and the combined guide rail mechanism are integrally arranged in the bearing box; the bearing box is symmetrically arranged below both sides of the sliding-out box; long strip openings are arranged at the bottom of the bearing box; the bearing boxes symmetrically arranged at both ends are synchronously slid back and forth through the long strip openings at the lower end of the support frame; and the sliding-out box can realize two-stage expansion. The combined guide rail type vehicle box two-stage sliding-out system does not need to disassemble the lower chassis of the vehicle body; only the support frame needs to be fixed on the vehicle body; the whole sliding-out box can be arranged at the opening of the vehicle body; the sliding-out box is flush with the outer surface of the vehicle body; the application can realize two-stage expansion, increases the use space of the vehicle, is neat and beautiful, and is convenient to install and disassemble.

Description

Technical Field

[0001] This invention relates to the field of vehicle interior space expansion technology, and more particularly to a combined guide rail type two-stage sliding system for vehicle bodies. Background Technology

[0002] Existing vehicles and motorhomes can be equipped with slide-out cabins to increase interior space. During operation, the slide-out cabin's outer wall is flush with the exterior of the vehicle or trailer. When the vehicle stops, the slide-out cabin slides out from the vehicle's opening, thus increasing interior space.

[0003] Patent CN202111541306.4 discloses a motorhome extension mechanism and a motorhome. The sliding mechanism is located under and on the side of the vehicle body. It is not integrated, occupies a lot of space, is inconvenient to install, and is unstable in operation.

[0004] Patent US202117408020 discloses a sliding device that is set on both sides of the sliding box. Due to the complexity of the mechanism used, the telescopic drive device is too tall, occupies a lot of space, is inconvenient to maintain, and increases the cost of use.

[0005] Regarding the aforementioned technologies, the inventors believe that current vehicle sliding-out telescopic mechanisms are relatively large, complex to install, and costly. Therefore, they argue that vehicle sliding-out systems suffer from problems such as large space requirements, inconvenience in use, and difficulty in installation. Summary of the Invention

[0006] To address the issues of large space requirements and difficult installation associated with traditional vehicle sliding-out mechanisms, this invention provides a combined guide rail type two-stage sliding-out system for vehicle bodies. The sliding-out mechanism of this system is integrated into the bottom sides of the sliding-out body, suspending and supporting its weight. Using this system in a vehicle sliding-out system saves space and improves space utilization. Since the entire sliding-out mechanism inside the support box is integrated and connected to the base plate of the support frame, the lower chassis of the vehicle body does not need to be disassembled. Installation and disassembly are convenient; simply fixing the base plate of the support frame to the vehicle body allows the entire sliding-out body to be positioned at the opening of the vehicle body.

[0007] This application provides a combined guide rail type vehicle body two-stage sliding system, which adopts the following technical solution:

[0008] A combined guide rail type two-stage sliding system for vehicle bodies includes a drive unit, a support frame, a combined guide rail mechanism, a carrier box, and a sliding box. One side of the combined guide rail mechanism is fixed to the support frame, and the other side is fixed to the outer wall of the carrier box. The drive unit is fixed to the support frame, and the support frame is fixed to the vehicle body. The drive unit, part of the support frame (excluding the bottom plate), and the combined guide rail mechanism are integrated inside the carrier box. The carrier box is symmetrically arranged on both sides below the sliding box. The bottom of the carrier box is provided with an elongated opening, through which the carrier box slides back and forth at the lower end of the support frame.

[0009] By adopting the above technical solution, the drive device, combined guide rail mechanism and part of the support frame are integrated in the carrier box, which can isolate the combined guide rail mechanism and drive device from the influence of the outside world, facilitate installation and disassembly, improve the appearance and increase the interior space of the vehicle. The carrier box is symmetrically arranged on both sides below the sliding box, and can suspend the weight of the sliding box.

[0010] Preferably, the driving device includes a rack, a gear, a reducer, and a motor. The rack is fixed to the side wall of the bearing box, the output shaft of the motor is connected to the reducer, and the gear is fixed to the output shaft of the reducer by snap rings A and B. The motor drives the gear to rotate through the reducer, and the tooth surface of the gear meshes with the tooth surface of the rack, converting the rotational motion of the gear into the linear motion of the rack.

[0011] By adopting the above technical solution, the drive device converts the rotational motion of the gear into the linear motion of the rack, which drives the sliding housing to slide out and retract.

[0012] Preferably, the base plate of the support frame is provided with a vehicle body fixing mounting hole, and the support frame is fixed to the vehicle body through the vehicle body mounting hole. The vertical plate of the support frame is also provided with a sliding limit plate and a retraction limit plate on both sides.

[0013] By adopting the above technical solution, the support frame can transfer the weight to the vehicle body, ensuring that the sliding box is suspended in the air and does not interfere with the vehicle body, and the support frame can also support the drive unit. The sliding limit plate can limit the sliding box when it slides out, and the retraction limit plate can limit the sliding box when it retracts, preventing the load-bearing box from slipping off.

[0014] Preferably, the combined guide rail mechanism includes a primary guide rail, a secondary guide rail, a reinforcing fixing plate, a slider one, a slider two, a slider three, and a slider four. Slider one and slider two are slidably connected to the primary guide rail, and slider three and slider four are slidably connected to the secondary guide rail.

[0015] By adopting the above technical solution, the slider and guide rail are connected in a linear sliding manner, reducing friction and achieving linear motion.

[0016] Preferably, the primary guide rail is fixed to the side wall of the bearing box, the first slider and the second slider are fixed to the reinforcing plate, and the third slider and the fourth slider are fixed to the support frame.

[0017] By adopting the above technical solution, the load-bearing box can drive the primary guide rail to slide, and the support frame can bear the weight of the combined guide rail mechanism.

[0018] Preferably, the first-stage guide rail has a baffle mounting hole 1 at one end near the interior of the carriage for fixing to the baffle 1. The baffle 1 has a locking pin, and the reinforcing fixing plate has a locking groove corresponding to the locking pin. The second-stage guide rail and the reinforcing fixing plate are fixedly connected. The second-stage guide rail has a baffle mounting hole 2 at one end near the interior of the carriage for fixing the baffle 2.

[0019] By adopting the above technical solution, the combined guide rail mechanism can perform two-stage telescopic movement, suspending the weight of the sliding box and enabling the sliding box to slide out and retract, thus expanding the usable space inside the vehicle. When the primary guide rail slides outward, the secondary guide rail slides outward when the locking pin slides to the bottom of the slot. The sliding process ends when the second baffle touches the sliding limit plate.

[0020] Preferably, the other end of the secondary guide rail is provided with a baffle mounting hole three for fixing the baffle three, and the bearing box is also provided with a sealing plate along the length direction.

[0021] By adopting the above technical solution, when the sliding box is retracted, the primary guide rail slides inward, and when the sealing plate touches the baffle three, it drives the secondary guide rail to slide inward.

[0022] Preferably, the primary guide rail, the secondary guide rail, and the reinforcing fixing plate maintain a cantilever configuration when sliding out of and retracting from the sliding box.

[0023] By adopting the above technical solution, the cantilever configuration of the primary guide rail, secondary guide rail, and reinforcing fixing plate can increase the sliding length of the sliding box and increase the usable space inside the vehicle without the need for additional support.

[0024] Preferably, during vehicle operation, the sliding box is flush with the outer surface of the vehicle body.

[0025] By adopting the above technical solutions, the impact of the external environment on the interior of the carriage can be reduced, and the appearance is also aesthetically pleasing.

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

[0027] 1. The combined guide rail mechanism, drive device, and some support frames are symmetrically integrated and arranged in the load-bearing boxes on both sides of the sliding box, which can realize two-stage synchronous extension and retraction, increasing the usable space inside the vehicle.

[0028] 2. The combined guide rail mechanism, drive unit, and some support frames are symmetrically integrated and arranged in the carrier box, which can isolate the combined guide rail mechanism and drive unit from the influence of the outside world, facilitate installation, improve appearance, and increase the interior space of the vehicle.

[0029] 3. Since the entire combined guide rail mechanism inside the carrier box is integrated and connected to the support frame, it is not necessary to disassemble the lower chassis of the vehicle body. Simply fix the bottom plate of the support frame to the vehicle body, and the entire sliding box can be set at the opening of the vehicle body.

[0030] 4. The load-bearing box transfers the weight of the box to the combined guide rail, which then transfers the weight to the support frame, and finally the support frame transfers the weight to the vehicle body.

[0031] 5. The box slides out of the vehicle body and is flush with the outer surface of the vehicle body while the vehicle is in motion, which can reduce the impact of the external environment on the interior of the vehicle body and also improve the appearance. Attached Figure Description

[0032] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a cross-sectional view of the sliding box portion in a specific embodiment of the present invention.

[0034] Figure 2 This is a side view of the sliding box in a specific embodiment of the present invention.

[0035] Figure 3 This is a schematic diagram of the vehicle body sliding mechanism in a specific embodiment of the present invention.

[0036] Figure 4 This is an exploded schematic diagram of the drive device of the vehicle body sliding system in a specific embodiment of the present invention.

[0037] Figure 5 This is a schematic diagram of the support frame structure in a specific embodiment of the present invention.

[0038] Figure 6 This is a schematic diagram of the box structure of the carrier box in a specific embodiment of the present invention.

[0039] Figure 7This is an exploded view of the combined guide rail structure in a specific embodiment of the present invention.

[0040] Figure 8 This is an explosion diagram of the sliding mechanism in a specific embodiment of the present invention.

[0041] Figure 9 These are front and rear views of the internal structure of the carrier box in a specific embodiment of the present invention.

[0042] Figure 10 This is a side view of the internal structure of the carrier box in a specific embodiment of the present invention.

[0043] Figure 11 The middle part is a schematic diagram of the vehicle sliding out system fully sliding out in a specific embodiment of the present invention.

[0044] Figure 12 The middle part is a schematic diagram of the vehicle sliding system fully retracting in a specific embodiment of the present invention.

[0045] Figure 13 13A is a schematic diagram of the vehicle sliding mechanism in the non-sliding state, 13B is a schematic diagram of the sliding mechanism in the sliding process, and 13C is a schematic diagram of the sliding mechanism in the fully sliding state.

[0046] Figure 14 14A is a schematic diagram of the vehicle sliding mechanism in the fully extended state; 14B is a schematic diagram of the sliding mechanism in the retraction process; 14C is a schematic diagram of the sliding mechanism in the fully retracted state.

[0047] Explanation of reference numerals in the attached drawings: 1. Sliding box; 2. Carrier box; 3. Support frame; 4a. Slider one; 4b. Slider two; 4c. Slider three; 4d. Slider four; 5. Primary guide rail; 6. Secondary guide rail; 7. Reinforcing fixing plate; 8a. Baffle one; 8b. Baffle two; 8c. Baffle three; 9. Rack; 10. Gear; 11. Reducer; 12. Motor; 13a. Snap ring A; 13b. Snap ring B; 14. Snap groove; 15. Snap pin; 16. Sealing plate; 17. Long strip opening; 18. Retractable limiting plate; 19. Sliding limiting plate; 20. Car body mounting hole; 21. Reducer fixing plate; 23. Drive device; 24. Combined guide rail mechanism; 25a. Baffle mounting hole one; 25b. Baffle mounting hole two; 25c. Baffle mounting hole three; 26. Car body. Detailed Implementation

[0048] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0049] Reference Figure 1 , Figure 2 , Figure 3 As shown: A vehicle body sliding system includes a drive unit 23, a support frame 3, a combined guide rail mechanism 24, a carrier box 2, and a sliding body 1. The sliding body 1 is made of aluminum alloy or other lightweight structural materials. Corresponding carrier boxes 2 are provided on the lower side walls of opposite sides of the sliding body 1. The two carrier boxes 2 have identical internal structures, are correspondingly arranged, and move synchronously, bearing the weight of the sliding body 1. The combined guide rail mechanism 24, the drive unit 23, and part of the support frame 3 (excluding the base plate) are integrated inside the carrier box 2, which can save space and facilitate quick installation and disassembly.

[0050] Reference Figure 4 As shown: The drive device 23 includes a rack 9, a gear 10, a reducer 11, and a motor 12. The output shaft of the motor 12 is connected to the reducer 11. The gear 10 is fixed on the output shaft of the reducer 11 by snap rings A13a and B13b. The motor 12 drives the gear 10 to rotate through the reducer 11. The tooth surface of the gear 10 meshes with the tooth surface of the rack 9, converting the rotational motion of the gear 10 into the linear motion of the rack 9.

[0051] Reference Figure 5 As shown: The base plate of the support frame 3 is provided with a vehicle body mounting hole 20. The support frame 3 is fixed to the vehicle body 26 through the vehicle body mounting hole 20. The vertical plate of the support frame 3 is also provided with a sliding limit plate 19 and a retraction limit plate 18 on both sides.

[0052] Reference Figure 6 As shown: The bottom of the carrier box 2 is provided with a long strip opening 17. The carrier box slides back and forth on both sides of the vertical plate of the support frame 3 through the long strip opening 17. The rack 9 is installed on the side wall of the carrier box 2. The carrier box 2 is also provided with a sealing plate 16 along its length.

[0053] Reference Figure 7As shown: The combined guide rail mechanism includes a primary guide rail 5, a secondary guide rail 6, a reinforcing fixing plate 7, slider 1 4a, slider 2 4b, slider 3 4c, and slider 4d. The primary guide rail 5 is fixedly connected to the side wall of the carrying box 2. One end of the primary guide rail 5 near the interior of the carriage is provided with a baffle mounting hole 1 25a for fixing to baffle 1 8a. A locking pin 15 is provided on baffle 1 8a. The reinforcing fixing plate 7 is provided with a locking groove 14 corresponding to the locking pin 15. The secondary guide rail 6 and the reinforcing fixing plate 7 are fixedly connected. One end of the secondary guide rail 6 near the interior of the carriage is provided with a baffle mounting hole 2 25b for fixing baffle 2 8b. The other end of the secondary guide rail 6 is provided with a baffle mounting hole 3 25c for fixing baffle 3 8c. Slider 4a and slider 4b are slidably connected to the primary guide rail 5, and sliders 4c and 4d are slidably connected to the secondary guide rail 6. Slider 4a and slider 4b are fixed to the reinforcing plate 7, and sliders 4c and 4d are fixed to the support frame 3. The primary guide rail 5, the secondary guide rail 6, and the reinforcing plate 7 maintain a cantilevered configuration when sliding out of and retracting from the sliding housing 1.

[0054] Reference Figure 8 The image shown is an exploded view of the sliding mechanism. Figure 9 The images shown are the front and rear views of the internal structure of the support box. Figure 10 The image shown is a side view of the internal structure of the carrier box.

[0055] Reference Figure 13 As shown: When the vehicle body sliding system slides out, the motor 12 drives the reducer 11 to rotate, the gear 10 rotates under the action of the reducer 11, and the rack 9 converts the helical motion into linear motion under the action of the gear 10, pulling the carrier box 2 to slide outward. The carrier box 2 drives the first-stage guide rail 5 to slide together. After sliding out a certain distance, when the locking pin 15 slides to the bottom of the locking groove 14, it drives the second-stage guide rail 6 to slide outward. When the baffle 8b touches the sliding limit plate 19, the sliding process ends, realizing two-stage extension. Figure 13 13A is a schematic diagram of the vehicle sliding system in the non-sliding state, 13B is a schematic diagram of the sliding mechanism in the sliding process, and 13C is a schematic diagram of the sliding mechanism in the fully sliding state.

[0056] Reference Figure 14 As shown: When the vehicle body slides out of the system and retracts, the motor 12 drives the reducer 11 to rotate in the opposite direction. The gear 10 reverses under the action of the reducer 11, which drives the rack 9 to pull the carrier box 2 inward. The carrier box 2 drives the first-level guide rail 5 to slide inward together. After retracting a certain distance, when the sealing plate 16 touches the baffle 3 8c, it drives the second-level guide rail 6 to retract inward together. When the baffle 3 8c touches the retraction limit plate 18, the retraction process ends, realizing two-stage retraction. Figure 1414A is a schematic diagram of the vehicle sliding system in the fully sliding state, 14B is a schematic diagram of the sliding mechanism in the retraction process, and 14C is a schematic diagram of the sliding mechanism in the fully retracted state.

[0057] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those 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 invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A combined guide rail type vehicle body two-stage sliding system, comprising a drive unit (23), a support frame (3), a combined guide rail mechanism (24), a carrier box (2), and a sliding box (1), characterized in that, The combined guide rail mechanism (24) includes a primary guide rail (5), a secondary guide rail (6), a reinforcing fixing plate (7), a slider one (4a), a slider two (4b), a slider three (4c), and a slider four (4d). The slider one (4a) and the slider two (4b) are slidably connected to the primary guide rail (5), and the slider three (4c) and the slider four (4d) are slidably connected to the secondary guide rail (6). The primary guide rail (5) is fixed on the side wall of the bearing box (2), the slider one (4a) and the slider two (4b) are fixed on the reinforcing fixing plate (7), and the slider three (4c) and the slider four (4d) are fixed on the support frame (3). The driving device (23) is fixed on the support frame (3), and the bottom plate of the support frame (3) is fixed on the vehicle body (26). The driving device (23), part of the support frame (3), and the combined guide rail mechanism (24) are integrated in the vehicle body (26). Inside the carrier box (2); the carrier box (2) is symmetrically arranged on both sides below the sliding box (1), and the bottom of the carrier box (2) is provided with a long strip opening (17). The carrier box (2) slides back and forth on the lower end of the support frame (3) through the long strip opening (17); a baffle (8a) is fixed on the first-level guide rail (5), and a locking pin (15) is provided on the baffle (8a). A slot (14) corresponding to the locking pin (15) is provided on the reinforcing fixing plate (7); the second-level guide rail (6) and the reinforcing fixing plate (7) are fixedly connected, and a baffle (8b) is fixed on the second-level guide rail (6); a baffle (8c) is fixed at the other end of the second-level guide rail (6); a sealing plate (16) is also provided along the length direction of the carrier box (2); the first-level guide rail (5), the second-level guide rail (6) and the reinforcing fixing plate (7) always maintain a cantilever setting when the sliding box (1) slides out and retracts.

2. The combined guide rail type vehicle body two-stage sliding system according to claim 1, characterized in that, The base plate of the support frame (3) is provided with a vehicle body fixing mounting hole (20). The support frame (3) is fixed to the vehicle body (26) through the vehicle body mounting hole (20). The vertical plate of the support frame (3) is also provided with a sliding limit plate (19) and a retraction limit plate (18) on both sides.

3. The combined guide rail type vehicle body two-stage sliding system according to claim 1, characterized in that, The first-level guide rail (5) has a baffle mounting hole 1 (25a) at one end near the interior of the carriage for fixing the baffle 1 (8a). The second-level guide rail (6) has a baffle mounting hole 2 (25b) at one end near the interior of the carriage for fixing the baffle 2 (8b). The second-level guide rail (6) has a baffle mounting hole 3 (25c) at the other end for fixing the baffle 3 (8c).

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