Transport vehicle rear door

Abstract

The utility model provides a transport vehicle rear door which comprises a transition rear door, a rotating part is arranged on the upper portion of the transition rear door and installed on the upper portion of a rear stand column, and a first driving device for lifting the transition rear door to turn over is arranged between the transition rear door and a carriage. Frame columns with sliding rails are arranged on the two sides of the transition rear door, and lifting components sliding up and down are arranged on the sliding rails. And a turnover door which can be driven to turn over by a second driving device is rotationally mounted at the lower part of the lifting part. The lifting component is further connected with a third driving device driving the lifting component to move up and down. According to the rear door of the transport vehicle, the transition rear door can be overturned backwards and upwards to be opened, a loading and unloading platform capable of moving up and down can be formed through cooperation of the second driving device and the third driving device, a loading and unloading slope can be formed by the overturning door through the second driving device, and workers can select the opening mode of the rear door according to needs; and therefore, more convenient rear door styles are provided for different loading and unloading modes, and the loading and unloading convenience is improved.

Description

Technical Field

[0001] This utility model relates to a transport vehicle, specifically a rear door of a transport vehicle with multiple opening methods. Background Technology

[0002] There are various styles of rear doors for transport vehicles, such as rear-hinged, double-door, and lifting doors. However, the rear door of a transport vehicle can only be opened in one of these ways, meaning that the style cannot be changed once it is fixed.

[0003] However, different styles of rear doors have different advantages and disadvantages during the use of transport vehicles. For example, lifting doors make it easy to raise goods, tilting doors make it easy to dump goods as a whole, and double doors make it easy for staff to enter and exit from the rear door.

[0004] Once the rear door of the transport vehicle is fixed, its style cannot be changed to suit different situations, leading to inconvenience in its use under various working conditions. Utility Model Content

[0005] This utility model provides a rear door for a transport vehicle to solve the following problems: the rear door of a transport vehicle has a single style and cannot adapt to different loading and unloading requirements, which may lead to inconvenience in loading and unloading in different application scenarios.

[0006] This utility model provides a rear door for a transport vehicle, which includes a frame and a cargo box on the frame. The rear of the cargo box has an opening, and rear pillars are provided on both sides of the opening. The opening has a rear door.

[0007] The rear door includes a transition rear door, and a rotating component is provided on the upper part of the transition rear door. The rotating component is installed on the upper part of the rear pillar, and a first driving device for driving the transition rear door to flip is provided between the transition rear door and the carriage.

[0008] The transition rear door includes frame columns on both sides, with slide rails on the frame columns and lifting components that slide up and down on the slide rails.

[0009] The lower part of the lifting component is rotatably equipped with a flip door, and the lifting component is also provided with a second driving device, which drives the flip door to flip around the lower part of the lifting component.

[0010] The lifting component is also connected to a third driving device, which drives the lifting component and the flip door on the lifting component to move up and down.

[0011] Preferably, the flip door is provided with double doors inside, and the double doors are provided with double door locks.

[0012] Preferably, the rotating component is a flip plate extending toward the rear column, and the flip plate is connected to the first driving device in the middle. The first driving device is a first telescopic device.

[0013] Preferably, the slide rail is a lifting guide column, the lifting guide column is provided with a slide groove, the lifting component includes a sliding member, the sliding member slides up and down in the slide groove, and the third driving device includes a third telescopic device, the third telescopic device drives the lifting component to slide up and down in the slide groove.

[0014] Preferably, the second drive device includes a second telescopic device, the two ends of which are rotatably connected to the upper middle part of the lifting component and the upper middle part of the flip door, respectively.

[0015] Preferably, a first locking device is also provided between the frame column and the rear column;

[0016] At least one of the following locations is provided: between the tilting door and the lifting component, and between the tilting door and the frame column;

[0017] A third locking device is provided between the lifting component and the lifting column.

[0018] Preferably, the slide rail is a lifting guide column, and the flip door and the lifting guide column are respectively provided with an upper bracket and a lower bracket. The upper bracket and the lower bracket are a matching snap-fit ​​structure. When the flip door moves up and down to a preset position, it snaps into the lifting guide column through the snap-fit ​​structure.

[0019] Preferably, the lifting components are two pieces, and the lower part of each of the two lifting components is provided with a mounting plate. The mounting plate is provided with a horizontal rotating shaft, and a rotating sleeve is provided on the rotating shaft. The flip door is installed on the rotating sleeve.

[0020] Preferably, the outer side of the flip door is provided with shock-absorbing blocks.

[0021] Preferably, the carriage is a conveyor belt carriage.

[0022] Compared with the prior art, the rear door of the transport vehicle provided by this utility model has the following beneficial technical effects:

[0023] The rear door of the aforementioned transport vehicle is configured as a transition rear door, which can be flipped backward. The transition rear door is equipped with a slide rail, a lifting component, and a third drive device to enable the flipping door to move up and down. Then, the second drive device enables the flipping door to flip around the rotating connection at the lower part of the lifting component.

[0024] When a rearward tilt is required, the transition rear door can be tilted upward axially using the first drive device, making it easier for goods to be unloaded directly from the rear.

[0025] When it is necessary to move goods up and down through the rear door for unloading, the second drive device can be used to flip the door to a horizontal state, and then the third drive device can be used to drive the door to move up and down, thus making the door a loading and unloading platform that can move up and down. This makes it easier for staff to move goods up and down through the door, and to raise the goods to the height of the carriage or lower the goods on the carriage to the ground level.

[0026] When a ramp is required for loading and unloading, the second drive device can be used to flip the door backward, thereby forming a ramp that extends backward and downward from the rear of the carriage to the ground, which facilitates the rolling of goods or the driving of livestock through the ramp.

[0027] It should also be noted that, in addition to the various frames, a rear door panel can be installed at the rear door to seal the gaps between the frames.

[0028] The aforementioned structure of the rear door of the transport vehicle allows staff to select the opening method as needed, thus providing a more convenient rear door style for different loading and unloading modes, improving the convenience of loading and unloading, enabling the vehicle compartment to easily load and unload different goods, expanding the application range of the transport vehicle's rear door, and greatly improving the safety and efficiency of loading and unloading goods. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0030] Obviously, the accompanying drawings described below are only some specific embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any creative effort.

[0031] Figure 1 This is a closed view of the rear door of the transport vehicle in Embodiment 1 of this utility model.

[0032] Figure 2 This is a view of the horizontally lifted state of the rear door of the transport vehicle in Embodiment 1 of this utility model.

[0033] Figure 3 This is a plan view showing the horizontal lifting of the rear door of the transport vehicle and the height of the interior of the vehicle compartment in Embodiment 1 of this utility model.

[0034] Figure 4 This is a view showing the horizontal lifting and lowering of the rear door of the transport vehicle to the ground in Embodiment 1 of this utility model.

[0035] Figure 5 This is a loading view of the rear door of the transport vehicle in Embodiment 1 of this utility model, showing the loading process on a ramp.

[0036] Figure 6 This is a view of the rear door of the transport vehicle in Embodiment 1 of this utility model.

[0037] Figure 7 This is a view showing the rear door of the transport vehicle being lifted open as a whole in Embodiment 1 of this utility model.

[0038] Figure 8 This is a view of the lifting column of the rear door of the transport vehicle in Embodiment 1 of this utility model.

[0039] label name label name 1 ground 13 First fulcrum of the tilting cylinder 2 car 14 Second drive unit 3 Transition backdoor 15 Second pivot point of the tilting cylinder 4 Rear pillar 16 Rising bollards 5 First driving device 17 Lifting components 6 Lifting guide column 18 Fixing sleeve 7 Connecting fixing plate 19 Pin support plate 8 Upper booth 20 Rotary pin 9 Lower booth 21 Third drive unit 10 Flip door 22 Lower fixing plate of lifting cylinder 11 Shock absorber 23 Locking nut 12 double doors Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0041] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0042] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0043] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0046] Example 1

[0047] This embodiment provides a rear door for a transport vehicle, which includes a frame and a cargo box 2 on the frame. The cargo box 2 has an opening at its rear, and rear pillars 4 are located on both sides of the opening. A rear door is located at the opening. The rear door includes a transition rear door 3, with a rotating component mounted on the upper part of the transition rear door 3. The rotating component is installed on the upper part of the rear pillars. A first driving device 5 is provided between the transition rear door 3 and the cargo box 2 to push the transition rear door 3 to rotate upwards. The transition rear door 3 includes frame pillars on both sides, with slide rails mounted on the frame pillars. In this embodiment, the frame pillars and slide rails can be integrated or separate structures. When separate structures are used, they can be fixedly connected by a connecting fixing plate 7. A lifting component 17 that slides vertically is provided on the slide rails. A flip door 10 is rotatably mounted on the lower part of the lifting component 17. A second driving device 14 is also provided on the lifting component 17, driving the flip door 10 to rotate around the lower part of the lifting component 17. The lifting component 17 is also connected to a third driving device 21, which drives the lifting component 17 and the flip door 10 on the lifting component 17 to move up and down.

[0048] The rear door of the aforementioned transport vehicle is configured as a transition rear door 3, which can be flipped backward. The transition rear door 3 is equipped with a sliding rail, a lifting component 17, and a third drive device 21 to allow the flip door 10 to move up and down. Then, the second drive device 14 causes the flip door 10 to flip around the lower part of the lifting component 17 as its axis. When upward or backward flipping is required, the first drive device 5 is used to flip the transition rear door 3 upward around its upper rotating mounting point, facilitating direct unloading of goods from the rear. When unloading requires horizontal movement through the rear door, the second drive device 14 flips the flip door 10 to a horizontal position, and the third drive device 21 drives the flip door 10 to move up and down, thus using the flip door 10 as a vertically movable loading and unloading platform. This allows workers to move goods up and down through the flip door 10, facilitating the lifting of goods to the height of the cargo compartment 2 or the lowering of goods in the cargo compartment 2 to ground level. When a ramp is required for loading and unloading, the second drive device 14 can also cause the tilting door 10 to tilt backward, thus forming a ramp extending backward and downward from the rear of the carriage 2 to the ground. This facilitates the rolling of goods or the use of the ramp to drive livestock. The structure of the rear door of the transport vehicle allows operators to select the opening method as needed, providing a more convenient rear door style for different loading and unloading modes, improving the convenience of loading and unloading, and enabling the carriage 2 to easily load and unload different goods. This expands the application range of the transport vehicle's rear door and greatly improves the safety and efficiency of loading and unloading.

[0049] Specifically, in this embodiment, the flip door 10 is provided with a double door 12, and the double door 12 is provided with a double door 12 lock. That is, the flip door 10 includes a flip door 10 frame, and two double door bodies are provided in the flip door 10 frame. The two double door bodies should be provided with a double door 12 lock for locking the door.

[0050] Specifically, in this embodiment, the rotating component is a flip-up plate extending towards the rear pillar. The middle of the flip-up plate is connected to the first driving device, which is a first telescopic device. The two ends of the first telescopic device are respectively rotatably connected to the middle of the flip-up plate and the middle of the rear pillar 4. The first telescopic device can be a hydraulic cylinder or a pneumatic cylinder. When it is a hydraulic cylinder, the first driving device 5 is a rear door lifting cylinder. When the first telescopic device moves upward, it drives the middle of the flip-up plate to extend upward, thereby causing the transition rear door 3 connected to the rear of the flip-up plate to flip upward as a whole.

[0051] Specifically, in this embodiment, the slide rail is a lifting guide column, and the lifting guide column is provided with a sliding groove. The lifting component includes a sliding member, which slides up and down within the sliding groove. The third driving device includes a third telescopic device, which drives the lifting component to slide up and down within the sliding groove. In this embodiment, the third driving device is a lifting cylinder, which drives the sliding member to slide up and down within the sliding groove, thereby causing the lifting component to move up and down. In this embodiment, to prevent the sliding member from detaching, the sliding member can be a cylindrical lifting column extending vertically. The third driving device 21 can be a hydraulic cylinder or a pneumatic cylinder, or it can be driven by a chain. When the telescopic rod of the third telescopic device moves up and down, it drives the sliding member to move up and down, thereby causing the lifting component 17 and the tilting door 10 on the lifting component 17 to move up and down.

[0052] Specifically, in this embodiment, in order to control the tilting of the door 10, the second drive device 14 includes a second telescopic device, which can be a hydraulic cylinder or a pneumatic cylinder. In this embodiment, the second drive device 14 is a tilting hydraulic cylinder. The two ends of the second telescopic device are respectively rotatably connected to the upper middle part of the lifting component 17 and the upper middle part of the tilting door 10. That is, the lower part of the tilting door 10 is rotatably mounted on the lifting component 17. When the second telescopic device extends or retracts, it can drive the tilting door 10 to tilt with the lower rotatable mounting point as the axis.

[0053] Specifically, in this embodiment, to improve the stability of the transition door, a first locking device is provided between the frame column and the rear column 4; that is, when the frame column and the rear column 4 are fixed, they can be locked by the first locking device, which can be any existing locking method such as clamping. When the flip door 10 flips to a preset angle, to improve the stability of the flip door 10, at least one second locking device is provided between the flip door 10 and the lifting component 17, and between the flip door 10 and the frame column. Similarly, when the lifting component 17 needs to be fixed and does not need to slide up and down, a third locking device is provided between the lifting component 17 and the lifting column to lock the lifting component 17.

[0054] Specifically, in this embodiment, the slide rail is a lifting guide column 6. The flip door 10 and the lifting guide column 6 are respectively provided with an upper locking seat 8 and a lower locking seat 9. The upper locking seat 8 and the lower locking seat 9 are a matching snap-fit ​​structure. When the flip door 10 moves up and down to a preset position, it snaps into the lifting guide column 6 through the snap-fit ​​structure. It should be noted that the upper and lower locking seats 9 are respectively provided on the flip door 10 and the lifting guide column 6. Only when the second driving device 14 drives the flip door 10 to fasten onto the frame column can the upper locking seat 8 on the flip door 10 snap onto the lower locking seat 9 as the flip door 10 moves down, thus making the flip door 10 snap-fit. Similarly, the upper and lower locking seats 9 disengage only when the flip door 10 is vertically upward. By providing the upper and lower locking seats 9, the flip door 10 can be fixed to the frame column when it is not needed to be opened. Of course, providing the lower locking seat 9 on the lifting guide column 6 should also be considered an equivalent solution in this embodiment.

[0055] Specifically, the lifting component 17 consists of two pieces. This embodiment also provides a specific method for the lower part of the flip door 10 to be flipped and installed. In this embodiment, the lower parts of the two lifting components are respectively provided with mounting plates. The mounting plates are provided with horizontal rotating shafts. The rotating shafts are provided with rotating sleeves. The flip door is installed on the rotating sleeves. In this embodiment, the rotating shafts can be rotatably connected or fixedly installed, but the rotating sleeves are rotatably set relative to the lifting components, thereby enabling the flip door connected to the rotating sleeves to flip.

[0056] Specifically, the outer side of the flip door is provided with a shock-absorbing block 11; when there is an impact at the rear, the shock-absorbing block 11 can play a shock-absorbing role. At the same time, when the flip door is used as a ramp, the shock-absorbing block 11 can also play a supporting role.

[0057] Specifically, in this embodiment, the carriage is a conveyor belt carriage to improve the convenience of loading and unloading.

[0058] Of course, the above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model and should be protected by the present utility model.

Claims

1. A rear door for a transport vehicle, comprising a frame and a cargo compartment on the frame, wherein an opening is provided at the rear of the cargo compartment, rear pillars are provided on both sides of the opening, and a rear door is provided at the opening, characterized in that, The rear door includes a transition rear door, the upper part of which is provided with a rotating component, the rotating component is installed on the upper part of the rear pillar, and a first driving device for driving the transition rear door to flip is provided between the transition rear door and the carriage. The transition rear door includes frame columns on both sides, and slide rails are provided on the frame columns. Lifting components that slide up and down are provided on the slide rails. The lower part of the lifting component is rotatably equipped with a flip door, and the lifting component is also provided with a second driving device, which drives the flip door to flip around the lower part of the lifting component. The lifting component is also connected to a third driving device, which drives the lifting component and the flip door on the lifting component to move up and down.

2. The rear door of the transport vehicle as described in claim 1, characterized in that, The flip-up door contains double doors, and the double doors are equipped with double door locks.

3. The rear door of the transport vehicle as described in claim 1, characterized in that, The rotating component is a flip plate extending towards the rear column, and the flip plate is connected to the first driving device in the middle. The first driving device is a first telescopic device.

4. The rear door of the transport vehicle as described in claim 1, characterized in that, The slide rail is a lifting guide column, and the lifting guide column is provided with a slide groove. The lifting component includes a sliding member, which slides up and down in the slide groove. The third driving device includes a third telescopic device, which drives the lifting component to slide up and down in the slide groove.

5. The rear door of the transport vehicle as described in claim 1, characterized in that, The second drive device includes a second telescopic device, the two ends of which are rotatably connected to the upper middle part of the lifting component and the upper middle part of the flip door, respectively.

6. The rear door of the transport vehicle as described in claim 1, characterized in that, A first locking device is also provided between the frame column and the rear column; At least one of the following locations is provided: between the tilting door and the lifting component, and between the tilting door and the frame column; A third locking device is provided between the lifting component and the slide rail.

7. The rear door of the transport vehicle as described in claim 1, characterized in that, The slide rail is a lifting guide column. The flip door and the lifting guide column are respectively provided with an upper bracket and a lower bracket. The upper bracket and the lower bracket are a matching snap-fit ​​structure. When the flip door moves up and down to the preset position, it snaps into the lifting guide column through the snap-fit ​​structure.

8. The rear door of the transport vehicle as described in claim 1, characterized in that, The lifting components consist of two parts, each with a mounting plate at its lower part. A horizontal pivot is mounted on the mounting plate, and a rotating sleeve is mounted on the pivot. The flip door is mounted on the rotating sleeve.

9. The rear door of the transport vehicle as described in claim 1, characterized in that... The outer side of the flip door is equipped with shock-absorbing blocks.

10. The transport cart rear door of claim 1, wherein, the cart is a conveyor belt cart.

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