Quickly retractable truck tailgate for logistics transportation

Abstract

The utility model provides a kind of truck rear door of quick folding and unfolding for logistics transportation belongs to logistics transportation technical field;Through the setting of driving motor and threaded rod in telescopic loading and unloading component, one-key type slope is unfolded, manual lifting is reduced, so that telescopic door plate can be smoothly pulled out inside lower door plate, form continuous slope or slide plate extended from truck floor to ground, so that goods can be directly slid or pushed, threaded rod is driven by driving motor, drive telescopic door plate along guide rod and slider slide, ensure that telescopic door plate is smoothly unfolded, and slider is inserted in the sliding slot of lower door plate, provide vertical direction stable movement, avoid shaking when loading and unloading, improve loading and unloading efficiency and reduce labor intensity.The utility model includes lower door plate and upper door plate, cavity is set up inside lower door plate, telescopic loading and unloading component is set in cavity, rotating connection component is set between lower door plate bottom and truck box body frame, and clamping component is set between upper door plate and truck box body frame.

Description

Technical Field

[0001] This utility model relates to a truck rear door that can be quickly retracted and extended for logistics transportation, specifically belonging to the field of logistics transportation technology. Background Technology

[0002] Traditional back doors are mostly fixed or simple hinged, which cannot form a continuous ramp or slide.

[0003] Publication number "CN217675713U" discloses a truck unloading slide for logistics transportation. This truck unloading slide includes a material discharge support base and a shock absorption mechanism. The top of the material discharge support base is hinged to the slide body. A fixed sleeve is slidably connected to the lower surface of the other end of the slide body. A movable support base is fixedly connected to the bottom end of the fixed sleeve. An adjusting screw is provided between the material discharge support base and the movable support base. A material discharge baffle is fixedly welded to the upper surface of the material discharge support base. Inclined guide plates are fixedly welded to both sides of the material discharge baffle. The shock absorption mechanism is fixedly installed on the upper surface of the material discharge support base, facing one end of the slide body. This truck unloading slide for logistics transportation allows for easy adjustment of the top height of the slide body, thus adapting to unloading trucks of different sizes.

[0004] The handling of this cargo requires the use of external tools, increasing labor intensity and operation time. Especially for heavy or large cargo, workers are prone to fatigue and there are high safety risks; moreover, the rear door structure lacks an intelligent storage mechanism, and the upper and lower door panels cannot be effectively folded or slid for storage, causing the doors to occupy interior space when closed, affecting cargo loading capacity. Utility Model Content

[0005] The purpose of this invention is to provide a truck rear door that can be quickly opened and closed for logistics transportation, so as to reduce the labor intensity and operation time of workers when handling goods, and avoid occupying the internal space of the truck when the door is closed, thus affecting the cargo loading capacity.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: the new model includes a lower door panel and an upper door panel. A cavity is opened on the inner side of the lower door panel, and a telescopic loading and unloading component is installed in the cavity. A rotating connection component is installed between the bottom of the lower door panel and the truck body frame, and a locking component is installed between the upper door panel and the truck body frame.

[0007] Furthermore, the sliding connection between the upper door panel and the truck body frame allows the upper door panel to be quickly stored inside the top of the truck body frame. The telescopic loading and unloading assembly inside the lower door panel enables the lower door panel and the telescopic loading and unloading assembly to quickly transport logistics goods, reducing the handling intensity for workers.

[0008] The lower door panel has an opening at the top. The telescopic loading and unloading assembly includes a drive motor, a threaded rod, a guide rod, and a slider. The drive motor is bolted to the bottom inner side of the lower door panel. The output shaft of the drive motor is coaxially fixed to the threaded rod. The telescopic door panel is threaded to the outer side of the threaded rod. The guide rod is slidably connected to the inner side of the telescopic door panel, and the bottom end of the guide rod is fixedly connected to the inner wall of the lower door panel.

[0009] Furthermore, the telescopic door panel can be smoothly pulled out and extended by sliding along the inside of the lower door panel, forming a ramp or slide plate extending from the truck bed floor to the ground. When retracted, it can be completely located inside the lower door panel, without affecting the opening and closing of the truck doors.

[0010] Slider blocks are fixedly installed on both the left and right sides of the telescopic door panel. The ends of the sliders are inserted into the grooves opened on the inner side wall of the lower door panel, and the sliders move back and forth in the vertical direction.

[0011] Furthermore, the sliding mechanism makes the sliding of the telescopic door panel more stable.

[0012] The rotating connection assembly includes a rotating link and a connecting shaft; the bottom surface of the lower door panel is rotatably connected to the connecting shaft, and the bottom end of the connecting shaft is rotatably connected to the rotating link. Both ends of the rotating link are inserted into the rotating grooves opened in the inner side wall of the truck body frame.

[0013] Furthermore, by rotating the connecting rod and cooperating with the connecting shaft, the lower door panel can be adjusted in angle, thereby allowing the lower door panel and the telescopic door panel to tilt and extend from the vehicle floor to the ramp or slide on the ground.

[0014] The upper door panel is inserted into the sliding grooves opened in the inner side wall of the truck body frame on both the left and right sides, and a locking block is fixedly installed on the front exterior of the upper door panel. A locking groove is opened on the inner top surface of the truck body frame, and the locking groove is set to correspond to the locking block. The locking block slides back and forth in the locking groove.

[0015] Furthermore, the upper door panel can be slidably installed onto the top of the truck body frame by means of the engaging slot and engaging block, thereby facilitating the handling of subsequent logistics goods.

[0016] Both the lower and upper door panels have handle grooves on their front outer walls, and the lower and upper door panels have connecting buckles on their front outer walls; the lower door panel has an anti-slip rubber layer on its rear outer wall, and the top part of the telescopic door panel is made of rubber.

[0017] Furthermore, the handle groove design makes the lower and upper door panels easier to operate, and the connecting buckle makes the connection between the lower and upper door panels more stable.

[0018] The beneficial effects of this utility model are:

[0019] 1. By incorporating a drive motor and threaded rod in the telescopic loading and unloading assembly, one-button ramp deployment is achieved, reducing manual lifting. This allows the telescopic door panel to be smoothly pulled out from the inside of the lower door panel, forming a continuous ramp or slide extending from the truck bed floor to the ground. This allows goods to slide directly down or be pushed. The drive motor drives the threaded rod, causing the telescopic door panel to slide along the guide rod and slider, ensuring smooth deployment. The slider is inserted into the groove of the lower door panel, providing stable vertical movement, preventing shaking during loading and unloading, improving loading and unloading efficiency, and reducing labor intensity.

[0020] 2. By setting up a locking component between the upper door panel and the truck body frame, the upper door panel can be slidably stored in the top of the truck body through the locking component, thus realizing the quick opening and closing of the rear door: when the upper door panel is stored, the space below is freed up, making it easy to unfold the telescopic door panel. When closed, it is fixed by the connecting buckle. The rotating connecting component of the lower door panel allows for angle adjustment to adapt to uneven ground, optimizing space utilization and ease of operation.

[0021] 3. The use of anti-slip rubber layer and rubber material on the top of the telescopic door panel reduces the risk of goods slipping. At the same time, the handle groove and connecting buckle facilitate manual operation and improve user-friendliness. The modular structure facilitates maintenance and replacement, enhancing the safety and durability of the overall device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the storage structure of the lower and upper door panels of this utility model;

[0023] Figure 2 This is a schematic diagram of the unfolded structure of the lower door panel and the upper door panel of this utility model;

[0024] Figure 3 This is a top-section structural diagram of the telescopic door panel of this utility model;

[0025] Figure 4 This is a schematic diagram of the extension structure of the telescopic door panel of this utility model;

[0026] Figure 5 This is a schematic diagram of the inclined structure of the lower door panel and the telescopic door panel of this utility model.

[0027] 1. Truck body frame; 2. Lower door panel; 3. Telescopic door panel; 4. Upper door panel; 5. Rotating linkage; 6. Connecting shaft; 7. Drive motor; 8. Threaded rod; 9. Guide rod; 10. Slider; 11. Engaging block; 12. Connecting buckle; 13. Engaging groove. Detailed Implementation

[0028] The following will be combined with the appendix Figures 1-5 The technical solutions in the embodiments are described clearly and completely.

[0029] Specific implementation method one: as follows Figures 1-5 As shown, the device consists of a lower door panel 2 and an upper door panel 4. The lower door panel 2 has a cavity on its inner side, and a telescopic loading and unloading assembly is installed in the cavity. The telescopic loading and unloading assembly includes a telescopic door panel 3, a drive motor 7, a threaded rod 8, a guide rod 9, and a slider 10. The drive motor 7 is fixedly installed on the bottom inner side of the lower door panel 2 by bolts. The output shaft end of the drive motor 7 is coaxially fixedly connected to the threaded rod 8. The telescopic door panel 3 is threadedly connected to the outer side of the threaded rod 8. The guide rod 9 is slidably connected to the inner side of the telescopic door panel 3. The bottom end of the guide rod 9 is fixedly connected to the inner side wall of the lower door panel 2. Through the setting of the telescopic loading and unloading assembly, the telescopic door panel 3 can be smoothly pulled out from the inner side of the lower door panel 2, thereby forming a continuous slope extending from the carriage floor to the ground, so that the goods can slide down or be pushed directly, reducing manual handling.

[0030] A rotating connection assembly is provided between the bottom of the lower door panel 2 and the truck body frame 1. The rotating connection assembly includes a rotating link 5 and a connecting shaft 6. The bottom surface of the lower door panel 2 is rotatably connected to the connecting shaft 6, and the bottom end of the connecting shaft 6 is rotatably connected to the rotating link 5. Both ends of the rotating link 5 are inserted into the rotating grooves opened in the inner side wall of the truck body frame 1. The lower door panel 2 can be adjusted in angle through the rotating connection assembly, so as to adapt to uneven ground, optimize space utilization and ease of operation.

[0031] A locking assembly is provided between the upper door panel 4 and the truck body frame 1. The locking assembly includes a locking block 11 and a locking groove 13. The locking block 11 is fixedly installed on the front exterior of the upper door panel 4. The locking groove 13 is opened on the inner top surface of the truck body frame 1. The locking groove 13 is set to correspond to the locking block 11. The locking block 11 slides back and forth in the locking groove 13. The locking assembly allows the upper door panel 4 to be quickly slid and stored on the top of the truck body, thereby realizing the quick opening and closing of the rear door. The truck body is closed by the cooperation of the lower door panel 2 and the upper door panel 4. The connection between the lower door panel 2 and the upper door panel 4 is made more stable by the connecting buckle 12.

[0032] Both the lower door panel 2 and the upper door panel 4 have handle grooves on their front outer walls. The lower door panel 2 has an anti-slip rubber layer installed on its rear outer wall, and the top part of the telescopic door panel 3 is made of rubber. The anti-slip rubber layer and the rubber material at the top of the telescopic door panel 3 reduce the risk of goods slipping. At the same time, the handle grooves and connecting buckles 12 facilitate manual operation and improve user-friendliness. The modular structure facilitates maintenance and replacement, enhancing the safety and durability of the overall device.

[0033] Work process: The worker operates the handle groove on the front side of the upper door panel 3, releases the connecting buckle 12, and through the locking assembly, the locking block 11 slides forward in the locking groove 13, so that the upper door panel 4 slides upward along the sliding groove on the inner side wall of the truck body frame 1 and is stored in the top of the truck body, thereby freeing up the space below to facilitate the operation of the lower door panel 2.

[0034] The lower door panel 2 is unlocked by rotating the connecting assembly. The rotating link 5 rotates around the connecting shaft 6 as the fulcrum, causing the lower door panel 2 to tilt from a vertical position to form an angle with the ground. The two ends of the rotating link 5 are inserted into the rotating grooves of the truck body frame 1 to provide stable support.

[0035] Start the drive motor 7, and the output shaft drives the threaded rod 8 to rotate. The telescopic door panel 3 is smoothly pulled out along the guide rod 9 and the slider 10 through the threaded connection. The slider 10 moves back and forth vertically in the groove on the inner side wall of the lower door panel 2 to ensure that the telescopic door panel 3 extends out of the cavity of the lower door panel 2 to form a continuous ramp or slide from the car floor to the ground.

[0036] Goods slide down the ramp of the telescopic door panel 3 from inside the truck bed to the ground. The rubber material reduces impact and noise, while the anti-slip rubber layer on the back of the lower door panel 2 increases friction to prevent goods from slipping. For heavy goods, workers can assist in pushing them, utilizing the ramp's slope to reduce lifting force. If the ground is uneven, the angle of the lower door panel 2 can be finely adjusted by rotating the connecting rod 5. The length of the telescopic door panel 3 can be adjusted by controlling the rotation amplitude of the threaded rod 8 via the drive motor 7 to accommodate different truck heights. Figure 3 and Figure 4 The internal structure of the telescopic assembly is shown, including the threaded rod 8, guide rod 9, and slider 10, which ensure stability during the telescopic process.

[0037] After loading and unloading, the drive motor 7 is started in reverse, and the threaded rod 8 is reversed, causing the telescopic door panel 3 to retract into the cavity of the lower door panel 2 along the guide rod 9 and the slider 10. After being fully retracted, the telescopic door panel 3 does not protrude, avoiding space occupation. By rotating the connecting rod 5 and the connecting shaft 6, the lower door panel 2 is rotated from the inclined position back to the vertical position and locked into the truck body frame 1. The upper door panel 4 is slid down from the top of the truck body, and the locking block 11 slides back and resets in the locking groove 13. The connecting buckle 12 is used to fix the front side of the lower door panel 2 and the upper door panel 4 to ensure the rear door is sealed. At this time, the rear door is retracted to its original position without affecting the driving of the truck.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present utility model's technical solution, based on the technical essence of the present utility model and within the spirit and principles of the present utility model, shall still fall within the protection scope of the present utility model's technical solution.

Claims

1. A retractable rear door for a truck used in logistics transportation, characterized in that, It includes a lower door panel (2) and an upper door panel (4). The lower door panel (2) has a cavity on its inner side, and a telescopic loading and unloading assembly is installed in the cavity. The bottom of the lower door panel (2) is rotatably connected to the bottom of the inner side of the truck body frame (1) through a rotating connection assembly. The top of the upper door panel (4) is rotatably connected to the top of the inner side of the truck body frame (1) through a locking assembly. The lower door panel (2) and the upper door panel (4) are locked together by a connecting buckle (12).

2. The retractable rear door for a logistics transport vehicle according to claim 1, characterized in that, The lower door panel (2) is set with an opening at the top. The telescopic loading and unloading assembly includes a telescopic door panel (3), a drive motor (7), a threaded rod (8), a guide rod (9), and a slider (10). A drive motor (7) is fixedly installed on the inner bottom surface of the lower door panel (2) by bolts. A threaded rod (8) is coaxially fixedly connected to the output shaft end of the drive motor (7). A telescopic door panel (3) is threadedly connected to the outer side of the threaded rod (8). A guide rod (9) is slidably connected to the inner side of the telescopic door panel (3). The bottom end of the guide rod (9) is fixedly connected to the inner wall of the lower door panel (2).

3. A retractable rear door for a logistics transport vehicle according to claim 1, characterized in that, The telescopic door panel (3) is fixedly installed with sliders (10) on both the left and right sides. The end of the slider (10) is inserted into the groove opened on the inner side wall of the lower door panel (2), and the slider (10) moves back and forth in the vertical direction.

4. A retractable rear door for a logistics transport vehicle according to claim 1, characterized in that, The rotating connection assembly includes a rotating link (5) and a connecting shaft (6); The bottom surface of the lower door panel (2) is rotatably connected to a connecting shaft (6), and the bottom end of the connecting shaft (6) is rotatably connected to a rotating connecting rod (5). Both ends of the rotating connecting rod (5) are inserted into the rotating grooves opened on the inner side wall of the truck body frame (1).

5. A retractable rear door for logistics transportation according to claim 1, characterized in that, The upper door panel (4) is inserted into the grooves opened on the inner side wall of the truck body frame (1) on both the left and right sides. The locking assembly includes a locking block (11) and a locking groove (13). The upper door panel (4) has a locking block (11) fixedly installed on the front side. The truck body frame (1) has a locking groove (13) on the inner top surface. The locking groove (13) is set for the corresponding locking block (11). The locking block (11) slides back and forth in the locking groove (13).

6. A retractable rear door for a logistics transport vehicle according to claim 1, characterized in that, Handle grooves are provided on the front outer walls of both the lower door panel (2) and the upper door panel (4), and connecting buckles (12) are installed on the front outer walls of both the lower door panel (2) and the upper door panel (4).

7. A retractable rear door for a logistics transport vehicle according to claim 1, characterized in that, The lower door panel (2) has an anti-slip rubber layer installed on the outer wall of the back side, and the top part of the telescopic door panel (3) is made of rubber.

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