Combined guide rail type vehicle box secondary sliding-out system

Abstract

The invention relates to a combined guide rail type vehicle box secondary sliding-out system which comprises a driving device, a supporting frame, a combined guide rail mechanism, a bearing box and a sliding-out box. One side of the combined guide rail mechanism is fixed to the supporting frame, the other side of the combined guide rail mechanism is fixed to the bearing boxes, the driving device is fixed to the uppermost portion of the supporting frame, the supporting frame is fixed to the vehicle body, the driving device, part of the supporting frame (except the bottom plate) and the combined guide rail mechanism are integrally arranged in the bearing boxes, and the bearing boxes are symmetrically arranged on the two sides of the lower portion of the sliding-out box. The bottoms of the bearing boxes are provided with long-strip openings, and the bearing boxes with the two symmetrical ends synchronously slide back and forth at the lower end of the supporting frame through the long-strip openings and can slide out of the box body to achieve two-stage stretching and retracting. According to the combined guide rail type vehicle box two-stage sliding-out system, a lower chassis of a vehicle body does not need to be disassembled, the whole sliding-out box can be arranged at the opening of the vehicle body only by fixing the supporting frame to the vehicle body, the sliding-out box is flush with the outer surface of the vehicle body, two-stage stretching and retracting can be achieved, the use space of the vehicle is increased, and the combined guide rail type vehicle box two-stage sliding-out system is neat, attractive and convenient to assemble and disassemble.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle interior space expansion, and in particular to a combined guide rail type vehicle box two-stage 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 the side of the vehicle body, has no integrated setting, occupies a large space, is inconvenient to install, and runs unsteadily.

[0004] Patent US202117408020 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 existing telescopic mechanism of the vehicle slide-out box is relatively large, complicated to install, and expensive. Therefore, it is believed that the slide-out system of the vehicle slide-out box has the problems of occupying a large space, being inconvenient to use, and being difficult to install. Summary of the invention

[0006] In order to improve the problem that the slide-out mechanism of the vehicle slide-out box has a large space occupation and is difficult to install, the present invention provides a combined rail type vehicle box two-stage slide-out system, the slide-out mechanism of the combined rail type vehicle box two-stage slide-out system is integrated and arranged at the bottom of both sides of the slide-out box, and the weight of the slide-out box is suspended and carried. The use of the slide-out mechanism in the vehicle slide-out system can save space and improve space utilization. Since the entire slide-out mechanism in the bearing 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 the installation and disassembly are convenient. Only the bottom plate of the support frame needs to be fixed on the vehicle body, and the entire slide-out box can be arranged at the opening of the vehicle body.

[0007] The present application provides a combined rail-type vehicle box two-stage slide-out system, which adopts the following technical solutions:

[0008] A combined rail type vehicle box two-stage slide-out system comprises a driving device, a support frame, a combined rail mechanism, a carrying box and a slide-out box, wherein one side of the combined rail mechanism is fixed to the support frame, and the other side is fixed to the outer side wall of the carrying box, the driving device is fixed to the support frame, and the support frame is fixed to the vehicle body, the driving device, part of the support frame (except the bottom plate), and the combined rail mechanism are integrated in the carrying box, the carrying box is symmetrically arranged on both sides below the slide-out box, a long strip opening is arranged at the bottom of the carrying box, and the carrying 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 driving device, the combined guide rail mechanism and part of the support frame are integrated in the carrying box, which can isolate the combined guide rail mechanism and the driving device from the outside world, facilitate installation and disassembly, have a beautiful appearance and can increase the internal use space of the vehicle. The carrying boxes are symmetrically arranged under the two sides of the slide-out box body and can be suspended to bear the weight of the slide-out box body.

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

[0011] By adopting the above technical solution, the driving device converts the rotational motion of the gear into the linear motion of the rack, driving the slide-out box to slide out and retract.

[0012] Preferably, a vehicle body fixing installation hole is provided on the bottom plate of the support frame, and the support frame is fixed to the vehicle body through the vehicle body installation hole. A slide-out limit plate and a retracted limit plate are also provided on both sides of the vertical plate of the support frame.

[0013] By adopting the above technical solution, the support frame can transfer the weight to the vehicle body, ensuring that the slide-out box is suspended and does not interfere with the vehicle body, and the support frame can support the driving device. The slide-out limit plate can limit the slide-out box when it slides out, and the retracted limit plate can limit the slide-out box when it is retracted to prevent 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, wherein the slider one and the slider two are slidably connected to the primary guide rail, and the slider three and the slider four are slidably connected to the secondary guide rail.

[0015] By adopting the above technical solution, the slider and the guide rail are connected by linear sliding, which reduces friction and realizes linear motion.

[0016] Preferably, the primary guide rail is fixed on the side wall of the carrying box, the slider 1 and the slider 2 are fixed on the reinforcing fixing plate, and the slider 3 and the slider 4 are fixed on the supporting frame.

[0017] By adopting the above technical solution, the carrying 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, a baffle mounting hole 1 is provided at one end of the primary guide rail close to the interior of the carriage for fixing with baffle 1, a bayonet is provided on baffle 1, a slot corresponding to the bayonet is provided on the reinforced fixing plate, the secondary guide rail and the reinforced fixing plate are fixedly connected, and a baffle mounting hole 2 is provided at one end of the secondary guide rail close to the interior of the carriage for fixing baffle 2.

[0019] By adopting the above technical solution, the combined guide rail mechanism can perform secondary telescopic movement, and the weight of the slide-out box is suspended in the air, so that the slide-out box can be slid out and retracted, and the use space in the vehicle can be expanded. When the primary guide rail slides outward, when the latch slides to the bottom of the slot, the secondary guide rail is driven to slide outward, and when the baffle plate 2 hits the slide-out limit plate, the sliding process ends.

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

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

[0022] Preferably, the primary guide rail, the secondary guide rail and the reinforcing fixing plate always maintain a cantilever arrangement when the slide-out box is slid out and retracted.

[0023] By adopting the above technical solution, the cantilever setting of the primary guide rail, the secondary guide rail and the reinforced fixing plate can increase the sliding length of the slide-out box and increase the usable space in the vehicle without the need for additional support.

[0024] Preferably, when the vehicle is running, the slide-out box is flush with the outer plane of the vehicle body.

[0025] By adopting the above technical solution, the impact of the external environment on the interior of the vehicle can be reduced and the appearance is beautiful.

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

[0027] 1. The combined guide rail mechanism, driving device and part of the support frame are integrated and symmetrically arranged in the bearing boxes below both sides of the slide-out box, which can realize two-stage synchronous extension and retraction and increase the usable space in the vehicle.

[0028] 2. The combined guide rail mechanism, the driving device and part of the support frame are integrated and symmetrically arranged in the carrying box, which can isolate the combined guide rail mechanism and the driving device from the outside world, facilitate installation, have a beautiful appearance and can increase the internal use space of the vehicle.

[0029] 3. Since the entire combined guide rail mechanism inside the carrying box is integrated and connected to the support frame, there is no need to disassemble the lower chassis of the vehicle body. It is only necessary to fix the bottom plate of the support frame to the vehicle body, and then the entire slide-out box can be set at the opening of the vehicle body.

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

[0031] 5. When the vehicle is driving, the box slides out and is flush with the outer surface of the vehicle body, which can reduce the impact of the external environment on the interior of the vehicle and has a beautiful appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] 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.

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

[0034] Figure 2 It is a side view of a slide-out box in a specific embodiment of the present invention.

[0035] Figure 3 It is a schematic diagram of the structure of the vehicle box sliding-out mechanism in a specific implementation manner of the present invention.

[0036] Figure 4 It is an exploded schematic diagram of a driving device of a vehicle box slide-out system in a specific embodiment of the present invention.

[0037] Figure 5 It is a schematic diagram of the support frame structure in a specific implementation manner of the present invention.

[0038] Figure 6 It is a schematic diagram of the box structure of the carrying box in a specific implementation manner of the present invention.

[0039] Figure 7It is an exploded schematic diagram of the combined guide rail structure in a specific implementation manner of the present invention.

[0040] Figure 8 It is an exploded schematic diagram of the slide-out mechanism in a specific implementation manner of the present invention.

[0041] Fig. 9 It is a front view and a rear view of the internal structure of the carrying box in a specific implementation manner of the present invention.

[0042] Fig.10 It is a side view of the internal structure of the carrying box in a specific implementation manner of the present invention.

[0043] Fig.11 Schematic diagram of the complete slide-out of the vehicle slide-out system in a specific embodiment of the present invention.

[0044] Fig.12 Schematic diagram of the vehicle slide-out system fully retracted in a specific embodiment of the present invention.

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

[0046] Fig.14 14A is a schematic diagram of the vehicle slide-out mechanism in a fully slid-out state; 14B is a schematic diagram of the slide-out mechanism in the process of being retracted; 14C is a schematic diagram of the slide-out mechanism in a fully retracted state.

[0047] Explanation of the reference numerals in the accompanying drawings: 1 slide-out box; 2 carrying 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 reinforcement fixing plate; 8a baffle one; 8b baffle two; 8c baffle three; 9 rack; 10 gear; 11 reducer; 12 motor; 13a retaining spring A; 13b retaining spring B; 14 slot; 15 latch; 16 sealing plate; 17 long opening; 18 retracting limit plate; 19 slide-out limit plate; 20 vehicle body mounting hole; 21 reducer fixing plate; 23 driving device; 24 combined guide rail mechanism; 25a baffle mounting hole one; 25b baffle mounting hole two; 25c baffle mounting hole three; 26 vehicle body. DETAILED DESCRIPTION

[0048] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solution 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 professional and technical personnel in this field without creative work are within the scope of protection of this patent.

[0049] Reference Figure 1 , Figure 2 , Figure 3 As shown: A vehicle box slide-out system, including a driving device 23, a support frame 3, a combined guide rail mechanism 24, a carrying box 2, and a slide-out box 1. The slide-out box 1 is made of aluminum alloy or other materials with relatively light structural rigidity. Corresponding carrying boxes 2 are arranged below the opposite side walls of the slide-out box 1. The two carrying boxes 2 have the same internal structure, are arranged correspondingly, move synchronously, and bear the weight of the slide-out box 1. The combined guide rail mechanism 24, the driving device 23, and part of the support frame 3 (except the bottom plate) are integrated inside the carrying box 2, which can save space and facilitate quick installation and disassembly.

[0050] Reference Figure 4 As shown, the driving 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, and the gear 10 is fixed to the output shaft of the reducer 11 through a retaining spring A13a and a retaining spring B13b. The motor 12 drives the gear 10 to rotate through the reducer 11, and 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: a vehicle body mounting hole 20 is provided on the bottom plate of the support frame 3, and the support frame 3 is fixed on the vehicle body 26 through the vehicle body mounting hole 20. A slide-out limit plate 19 and a retracted limit plate 18 are also provided on both sides of the vertical plate of the support frame 3.

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

[0053] Reference Figure 7As shown: the combined guide rail mechanism includes a primary guide rail 5, a secondary guide rail 6, a reinforced fixing plate 7, a slider 1 4a, a slider 2 4b, a slider 3 4c and a slider 4 d. The primary guide rail 5 is fixedly connected to the side wall of the carrying box 2. A baffle mounting hole 1 25a is provided at one end of the primary guide rail 5 close to the interior of the carriage for fixing with the baffle 1 8a. A bayonet 15 is provided on the baffle 1 8a. A bayonet 14 corresponding to the bayonet 15 is provided on the reinforced fixing plate 7. The secondary guide rail 6 is fixedly connected to the reinforced fixing plate 7. A baffle mounting hole 25b is provided at one end of the secondary guide rail 6 close to the interior of the carriage for fixing the baffle 2 8b. A baffle mounting hole 3 25c is provided at the other end of the secondary guide rail 6 for fixing the baffle 3 8c. The slider 1 4a and the slider 2 4b are slidably connected to the primary guide rail 5, the slider 3 4c and the slider 4 4d are slidably connected to the secondary guide rail 6, the slider 1 4a and the slider 2 4b are fixed on the reinforcing fixing plate 7, and the slider 3 4c and the slider 4 4d are fixed on the supporting frame 3. The primary guide rail 5, the secondary guide rail 6 and the reinforcing fixing plate 7 always maintain a cantilever setting when the slide-out box 1 slides out and is retracted.

[0054] Reference Figure 8 The exploded view of the slide-out mechanism is shown. Fig. 9 Shown are the front and rear views of the internal structure of the carrier box. Fig.10 Shown is a side view of the internal structure of the carrier box.

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

[0056] Reference Fig.14 As shown: when the vehicle box slide-out system is retracted, the motor 12 drives the reducer 11 to rotate in the opposite direction, and the gear 10 reverses under the action of the reducer 11, driving the rack 9 to pull the carrying box 2 inwardly, and the carrying box 2 drives the primary guide rail 5 to slide inward together. After being retracted for a certain distance, when the sealing plate 16 hits the baffle three 8c, it drives the secondary guide rail 6 to be retracted inward together. When the baffle three 8c hits the retraction limit plate 18, the retraction process ends, and a two-stage retraction is achieved. Fig.1414A is a schematic diagram of the vehicle slide-out system in a fully slid-out state, 14B is a schematic diagram of the slide-out mechanism in the process of being retracted, and 14C is a schematic diagram of the slide-out mechanism in a fully retracted state.

[0057] 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 combined rail type vehicle box two-stage slide-out system, comprising a driving device (23), a support frame (3), a combined rail mechanism (24), a carrying box (2) and a slide-out box (1), wherein one side of the combined rail mechanism (24) is fixed to the support frame (3) and the other side is fixed to the outer wall of the carrying box (2), the driving device (23) is fixed to the support frame (3), the support frame (3) is fixed to a vehicle body (26), the driving device (23), part of the support frame (3) (except the bottom plate), and the combined rail mechanism (24) are integrated in the carrying box (2), the carrying box (2) is symmetrically arranged on both sides below the slide-out box (1), the bottom of the carrying box (2) is provided with a long strip opening (17), and the carrying box (2) slides back and forth at the lower end of the support frame (3) through the long strip opening (17).

2. A combined rail type vehicle box two-stage slide-out system according to claim 1, characterized in that: The driving device (23) comprises a rack (9), a gear (10), a reducer (11) and a motor (12). The rack (9) is fixed on the side wall of the bearing box (2), the output shaft of the motor (12) is connected to the reducer (11), the gear (10) is fixed to the output shaft of the reducer (11) via a retaining spring A (13a) and a retaining spring B (13b), the motor (12) drives the gear (10) to rotate via the reducer (11), the tooth surface of the gear (10) meshes with the tooth surface of the rack (9), and the rotational motion of the gear (10) is converted into the linear motion of the rack (9).

3. A combined rail type vehicle box two-stage slide-out system according to claim 2, characterized in that: A vehicle body fixing mounting hole (20) is provided on the bottom plate of the support frame (3), and the support frame (3) is fixed to the vehicle body (26) through the vehicle body mounting hole (20). A slide-out limit plate (19) and a retracted limit plate (18) are also provided on both sides of the vertical plate of the support frame (3).

4. A combined rail type vehicle box two-stage slide-out system according to claim 3, characterized in that: The combined guide rail mechanism (24) comprises a primary guide rail (5), a secondary guide rail (6), a reinforcing fixing plate (7), a slider 1 (4a), a slider 2 (4b), a slider 3 (4c) and a slider 4 (4d); the slider 1 (4a) and the slider 2 (4b) are slidably connected to the primary guide rail (5), and the slider 3 (4c) and the slider 4 (4d) are slidably connected to the secondary guide rail (6).

5. A combined rail type vehicle box two-stage slide-out system according to claim 4, characterized in that: The primary guide rail (5) is fixed on the side wall of the carrying 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 supporting frame (3).

6. A combined rail type vehicle box two-stage slide-out system according to claim 5, characterized in that: The first guide rail (5) is provided with a baffle mounting hole (25a) at one end close to the interior of the carriage for fixing with baffle one (8a); the baffle one (8a) is provided with a latch pin (15); the reinforcing fixing plate (7) is provided with a latch groove (14) corresponding to the latch pin (15); the second guide rail (6) and the reinforcing fixing plate (7) are fixedly connected; the second guide rail (6) is provided with a baffle mounting hole (25b) at one end close to the interior of the carriage for fixing baffle two (8b).

7. A combined rail type vehicle box two-stage slide-out system according to claim 6, characterized in that: The other end of the secondary guide rail (6) is provided with a baffle mounting hole three (25c) for fixing baffle three (8c), and the carrying box (2) is also provided with a sealing plate (16) along the length direction.

8. The combined rail type vehicle box two-stage slide-out system according to claim 7, characterized in that: The primary guide rail (5), the secondary guide rail (6) and the reinforcing fixing plate (7) always maintain a cantilever arrangement when the slide-out box (1) is slid out and retracted.

9. The combined rail type vehicle box two-stage slide-out system according to claim 8, characterized in that: When the vehicle is traveling, the slide-out box (1) is flush with the outer plane of the vehicle body (26).

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