A retractable tailgate for a vehicle

Abstract

The utility model belongs to the technical field of the van compartment door and provides a kind of telescopic compartment door for vehicle, including van body, left side guide rail subassembly, right side guide rail subassembly, roller shutter subassembly and torsion spring subassembly;Roller shutter subassembly can move along the track formed by left and right two sides guide rail;The lock pin of roller shutter subassembly is arranged below, when roller shutter subassembly runs to the lowermost, the lock pin of roller shutter subassembly engages locking and limits the movement of roller shutter subassembly;Torsion spring subassembly is connected with roller shutter subassembly and provides power for the opening of roller shutter door.The utility model has the advantages that structure is simple, opening mode is inward retraction form, cargo compartment door can be opened upwards and received in van interior, this form does not occupy external space, opening is convenient, entire compartment door is the electric unlocking opening form of roller shutter type, avoids locking, the trouble of unlocking, also need not worry about the loss of goods due to forgetting to lock cargo compartment door.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle door technology, specifically relating to a retractable vehicle door. Background Technology

[0002] Traditional cargo box doors include double doors, hatchback doors, and side doors. These types of doors require external space to open, which is especially problematic for vans, which typically require a large opening area. This can lead to issues such as: in areas with limited space, the vehicle may not be able to park in the optimal loading / unloading position, making cargo handling inconvenient. It may also require opening the cargo box door in advance and then adjusting the vehicle's position, which could result in goods falling out during movement or collisions with obstacles due to blind spots. Furthermore, because traditional cargo box doors occupy a significant amount of external space, the surrounding environment needs to be assessed before opening, so they can only be opened manually. This is inconvenient in some scenarios, such as when a user is carrying goods with both hands, they must first put down the goods or free up one hand to open the cargo box door. In addition, for theft prevention, manually operated car doors may need to be equipped with a separate key lock. Before opening the door, the key unlocking process must be performed first, and after the goods are loaded, manual locking is also required. This is extremely inconvenient for applications such as express delivery that require frequent opening and closing of doors. For example, delivery personnel often leave the vehicle briefly after parking to deliver goods. If they need to manually unlock and lock the door every time, it will cause great inconvenience to the delivery personnel. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a retractable car door that is simple in structure, easy to open, and avoids interference problems caused by the car being too close to the building, in light of the current state of the technology.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a retractable car door, characterized in that it includes:

[0005] Carriage body;

[0006] Left guide rail assembly;

[0007] Right-side guide rail assembly; wherein the left-side and right-side guide rail assemblies are symmetrically arranged on both sides of the carriage body;

[0008] Roller blind assembly; wherein the roller blind assembly can move along the track formed by the left and right guide rails; a locking pin is arranged at the bottom of the roller blind assembly, which engages and locks the roller blind assembly when the roller blind assembly moves to the bottom, thus restricting the movement of the roller blind assembly.

[0009] Torsion spring assembly; wherein the left and right ends of the torsion spring assembly are fixedly connected to the front ends of the left guide rail assembly and the front ends of the left guide rail assembly respectively, and the torsion spring assembly is connected to the roller shutter assembly and provides power for opening the roller shutter door.

[0010] In the aforementioned retractable car door, the left guide rail assembly includes a left horizontal guide rail, a left vertical guide rail, and a left corner connector, which connects the left horizontal guide rail and the left vertical guide rail into a whole. The right guide rail assembly includes a right horizontal guide rail, a right vertical guide rail, and a right corner connector, which connects the right horizontal guide rail and the right vertical guide rail into a whole.

[0011] In the aforementioned retractable car door, the roller shutter assembly includes multiple slats that are rotatably connected to each other. Multiple bearings or rollers are arranged on the left and right sides of the slats, and the bearings or rollers extend into the guide rails on the left and right sides, thus restricting the movement of the roller shutter assembly along the guide rails on both sides.

[0012] In the aforementioned retractable vehicle door, the locking pin is arranged inside the roller shutter assembly and is fixedly connected to the roller shutter assembly. A lock is arranged inside the vehicle compartment and is fixedly connected to the vehicle compartment and / or guide rail. When the roller shutter moves to the bottom, the locking pin engages with the lock's latch to lock and restrict the movement of the roller shutter door.

[0013] In the aforementioned retractable car door, the lock is an electronic lock that can be unlocked upon receiving an electronic signal, allowing the lock pin to disengage from the latch.

[0014] In the aforementioned retractable car door, the torsion spring assembly includes a left end piece, a right end piece, a shaft, a torsion spring, a rotating block, a winding wheel, and a rope / pull strap on the winding wheel. When the locking pin at the bottom of the roller shutter is unlocked, the torque stored in the torsion spring is transmitted to the roller shutter assembly through the rope / pull strap, thereby driving the roller shutter assembly to move upward and causing the roller shutter door to retract inward, thus opening the car door.

[0015] In the aforementioned retractable car door, handles are provided on the outer and inner sides of the roller shutter assembly for manually pulling down the roller shutter assembly so that when the roller shutter assembly is moved to the lowest position, the locking pin and the buckle engage and lock.

[0016] In the aforementioned retractable vehicle door, an auxiliary pull rope is arranged below the roller shutter assembly. This allows for easy closing of the door when it is too high to reach the handle after it is fully opened.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] 1. The structure is simple and the opening method is inward. The cargo box door can be opened upward and retracted into the cargo box. This form does not occupy external space. Even in relatively small spaces, the van can be parked as close as possible to the cargo loading and unloading point without worrying about the space reserved for outward opening, the problem of the vehicle being too close to the building and interfering with it, or the need for further vehicle adjustments after opening the door.

[0019] 2. Easy to open: The entire cargo door is a roller shutter type with electric unlocking. Users can open the cargo door through buttons near the door, remote key, or even sensors, providing convenience for users to open and close the door. In addition, electric unlocking eliminates the need for a separate key lock, so users do not need to add extra steps to the anti-theft lock, avoiding the trouble of locking and unlocking, and also eliminating the worry of losing items due to forgetting to lock the cargo door. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the vehicle after the retractable cargo door and the vehicle body are assembled.

[0021] Figure 2 This is a structural diagram of the retractable cargo door used in this vehicle;

[0022] Figure 3 This is a structural diagram of the roller shutter assembly;

[0023] Figure 4 This is a schematic diagram of the roller shutter assembly structure from another direction;

[0024] Figure 5 This is a schematic diagram of the structure of the roller shutter assembly and the guide rail.

[0025] Figure 6 This is a schematic diagram of the locking mechanism where the locking pin engages with the lock.

[0026] Figure 7 This is a schematic diagram of the torsion spring assembly. Detailed Implementation

[0027] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0028] In the diagram, the following components are included: 100 (carriage body); 200 (lock pin); 300 (left horizontal guide rail); 400 (left longitudinal guide rail); 500 (left corner connector); 600 (right horizontal guide rail); 700 (right longitudinal guide rail); 800 (right corner connector); 900 (slats); 1000 (bearing or roller); 1001 (lock); 1001a (lock buckle); 1002 (left end piece); 1003 (right end piece); 1004 (shaft); 1005 (torsion spring); 1006 (rotating block); 1007 (winding wheel); 1008 (rope / pull strap); 1009 (handle); and 1010 (auxiliary pull rope).

[0029] like Figure 1 and Figure 2 As shown, this retractable cargo door mainly includes a cargo box 100, a left-side guide rail assembly, a right-side guide rail assembly, a roller shutter assembly, and a torsion spring assembly. The left-side and right-side guide rail assemblies are symmetrically arranged on both sides of the cargo box 100. The roller shutter assembly can move along the tracks formed by the left and right guide rails. A locking pin 200 is arranged below the roller shutter assembly; when the roller shutter assembly reaches its lowest position, the locking pin 200 engages and locks, restricting the movement of the roller shutter assembly. The left and right ends of the torsion spring assembly are fixedly connected to the front ends of the left and right guide rail assemblies, respectively. The torsion spring assembly connects to the roller shutter assembly and provides power for opening the roller shutter door. This patent primarily uses a roller shutter opening mechanism, specifically an inward-retracting design. This allows the entire cargo door to open upwards and retract into the cargo box, without occupying external space. Even in relatively confined spaces, the van can be parked as close to the loading and unloading point as possible without worry.

[0030] Specifically, such as Figure 3 As shown, the left guide rail assembly includes a left horizontal guide rail 300, a left vertical guide rail 400, and a left corner connector 500. The left corner connector 500 connects the left horizontal guide rail 300 and the left vertical guide rail 400 into a whole. The right guide rail assembly includes a right horizontal guide rail 600, a right vertical guide rail 700, and a right corner connector 800. The right corner connector 800 connects the right horizontal guide rail 600 and the right vertical guide rail 700 into a whole. In this way, the entire roller shutter assembly can move between the horizontal and vertical guide rails, thereby realizing opening and closing. Figure 4 as well as Figure 5 As shown, the roller shutter assembly includes multiple slats 900, which are rotatably connected. Multiple bearings or rollers 1000 are arranged on the left and right sides of each slat 900, extending into the guide rails on both sides and restricting the movement of the roller shutter assembly along these rails. A locking pin 200 is located inside the roller shutter assembly and is fixedly connected to it. A lock 1001 is arranged inside the carriage, and the lock 1001 has a latch 1001a, which is fixedly connected to the carriage and / or the guide rails. When the roller shutter reaches its lowest point (i.e., the closed state), the locking pin 200 engages with the latch 1001a to lock and restrict the movement of the roller shutter door (keeping it closed). This lock can be a mechanical lock or an electronic lock. In this embodiment, the lock is an electronic lock and can be unlocked upon receiving an electronic signal, allowing the locking pin 200 to disengage from the latch 1001a. Figure 6As shown, the torsion spring assembly includes a left end piece 1002, a right end piece 1003, a shaft 1004, a torsion spring 1005, a rotating block 1006, a winding wheel 1007, and a rope / pull strap 1008 on the winding wheel 1007. When the locking pin 200 at the bottom of the roller shutter unlocks from the lock, the torque stored in the torsion spring 1005 is transmitted to the roller shutter assembly through the rope / pull strap 1008, thereby driving the roller shutter assembly to move upward and causing the roller shutter door to retract inward, thus opening the compartment door. For ease of operation, handles 1009 are arranged on the outer and inner sides of the roller shutter assembly for manually pulling down the roller shutter assembly. When the roller shutter assembly moves to the lowest position, the locking pin 200 engages with the buckle and locks it. An auxiliary pull rope 1010 is arranged at the bottom of the roller shutter assembly. Here, if the position of the entire compartment door is too high after it is opened and the handle 1009 cannot be reached, the auxiliary pull rope 1010 can be used to assist in closing the door.

[0031] The specific embodiments described herein are merely illustrative examples of the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications to the described specific embodiments or adopt similar methods to replace them, but without departing from the scope defined by the spirit of this utility model.

Claims

1. A retractable van door, characterized by include: Carriage body; Left guide rail assembly; Right-side guide rail assembly; wherein the left-side and right-side guide rail assemblies are symmetrically arranged on both sides of the carriage body; Roller blind assembly; wherein the roller blind assembly can move along the track formed by the left and right guide rails; a locking pin is arranged at the bottom of the roller blind assembly, which engages and locks the roller blind assembly when the roller blind assembly moves to the bottom, thus restricting the movement of the roller blind assembly. Torsion spring assembly; The left and right ends of the torsion spring assembly are fixedly connected to the front ends of the left guide rail assembly and the front ends of the left guide rail assembly, respectively. The torsion spring assembly is connected to the roller shutter assembly and provides power for opening the roller shutter door.

2. The retractable door according to claim 1, wherein The left guide rail assembly includes a left horizontal guide rail, a left vertical guide rail, and a left corner connector, which connects the left horizontal guide rail and the left vertical guide rail into a whole. The right guide rail assembly includes a right horizontal guide rail, a right vertical guide rail, and a right corner connector, which connects the right horizontal guide rail and the right vertical guide rail into a whole.

3. The retractable door according to claim 1, wherein The roller blind assembly includes multiple slats that are rotatably connected to each other. Multiple bearings or rollers are arranged on the left and right sides of the slats respectively. The bearings or rollers extend into the guide rails on the left and right sides and restrict the movement of the roller blind assembly along the guide rails on both sides.

4. The retractable door according to claim 1, wherein The locking pin is arranged inside the roller shutter assembly and is fixedly connected to the roller shutter assembly. A lock is arranged inside the carriage and is fixedly connected to the carriage and / or guide rail. When the roller shutter moves to the bottom, the locking pin engages with the lock's latch to lock and restrict the movement of the roller shutter door.

5. The retractable door according to claim 1, wherein The lock is an electronic lock that can be unlocked upon receiving an electronic signal, allowing the lock pin to disengage from the latch.

6. The retractable body of a vehicle according to claim 1 or 2 or 3, characterized in that, The torsion spring assembly includes a left end piece, a right end piece, a shaft, a torsion spring, a rotating block, a winding wheel, and a rope / pull strap on the winding wheel. When the locking pin at the bottom of the roller shutter is unlocked, the torque stored in the torsion spring is transmitted to the roller shutter assembly through the rope / pull strap, thereby driving the roller shutter assembly to move upward and causing the roller shutter door to retract inward, thus opening the door.

7. A retractable cargo door for vehicles according to claim 1, characterized in that, The roller blind assembly is provided with handles on its outer and inner sides for manually pulling down the roller blind assembly so that when the roller blind assembly is moved to the lowest position, the locking pin and the buckle engage and lock it.

8. A retractable cargo door for vehicles according to claim 7, characterized in that, An auxiliary pull rope is arranged below the roller blind assembly.

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