A cargo bed having a height adjustable cargo bed

Abstract

The utility model provides a kind of height of carriage of truck carriage can be lifted, including carriage body and top cover, the both sides of the plate body of carriage body are respectively rotation and fixedly connected with screw rod and slide bar, the outer wall of the front and back of screw rod is all threadedly connected with slider, the upper end of slider is rotatably connected with connecting plate, the other end of connecting plate is rotatably connected on the lower end surface of top cover, the both sides of the plate body of carriage body are all set with slide groove, the screw rod is rotatably connected in slide groove, the middle part of slide groove is fixedly connected with partition, the front and back stem of screw rod is about partition symmetrical arrangement and is threadedly connected, the slide bar is fixedly connected between the front and back inner wall of slide groove.The utility model is cooperated under the action of the structure of setting carriage body, screw rod, slide bar, slider, connecting plate and top cover, can effectively promote carriage height, carry more goods in single transport, with practicality.

Description

Technical Field

[0001] This utility model belongs to the field of freight car bodies, and more specifically, it relates to a freight car body with adjustable height. Background Technology

[0002] Freight car bodies are mainly used to transport various goods. Because the internal structure of the car body is usually fixed, the number of goods transported in a single trip is limited.

[0003] In existing technologies, movable partitions are usually installed inside the cargo compartment to separate different goods for placement, thereby making more rational use of the cargo compartment space and increasing the amount of goods transported. However, this method does not actually increase the cargo compartment space and the increase is relatively small. Therefore, we propose an improved freight car compartment with adjustable height. Utility Model Content

[0004] The purpose of this utility model is to provide a truck bed with adjustable height, which has the function of conveniently adjusting the height of the truck bed.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a truck body with adjustable height is provided, comprising a truck body and a roof. A lead screw and a slide rod are rotatably and fixedly connected to the inner sides of the two side panels of the truck body, and a slider is threadedly connected to the front and rear outer walls of the lead screw. A connecting plate is rotatably connected to the upper end of the slider, and the other end of the connecting plate is rotatably connected to the lower end surface of the roof.

[0006] Optionally, the upper ends of both sides of the carriage body are provided with sliding grooves, the lead screw is rotatably connected in the sliding groove, a partition is fixedly connected in the middle of the sliding groove, and the front and rear threads of the lead screw are symmetrically arranged about the partition.

[0007] Optionally, the slide rod is fixedly connected between the front and rear inner walls of the slide groove, and the slider is slidably connected to the outer wall of the slide rod.

[0008] Optionally, synchronous motors are fixedly connected to both sides of the rear end face of the carriage body, and the output ends of the two synchronous motors are respectively fixedly connected to the rear ends of two lead screws.

[0009] Optionally, a frame is fixedly connected to the outer wall of the top cover, a telescopic sleeve is fixedly connected to the lower end face of the frame, a limit frame is fixedly connected to the lower end face of the telescopic sleeve, positioning pins are slidably connected to both sides of the limit frame, pressure plates are fixedly connected to the outer walls of the two positioning pins, a spring is fixedly connected between the pressure plates and the outer walls of the limit frame, and positioning holes are opened on both outer walls of the carriage body, with the positioning pins movably sleeved into the positioning holes.

[0010] Optionally, the lower end face opening area of ​​the limiting frame is larger than the upper end face area of ​​the carriage body, and the limiting frame is made of plastic sheet.

[0011] Optionally, a pull cap is fixedly connected to the end of the positioning pin away from the limiting frame, and the spring is movably connected to the outer wall of the rod body of the pressure plate.

[0012] Optionally, the front end of the frame is provided with a rotating groove, a hook is rotatably disposed in the rotating groove, a hanging rod is fixedly connected to the front end of the limiting frame, the lower end of the hook is sleeved on the outer wall of the hanging rod, an adjusting shaft is rotatably connected to the front end of the frame, and the hook is fixedly connected to the outer wall of the adjusting shaft.

[0013] Beneficial effects:

[0014] 1. This type of truck body with adjustable height, compared with the prior art, by setting up the truck body, lead screw, slide bar, slider, connecting plate and top cover structure to cooperate with each other, can use the rotation of lead screw to control the slider to move stably under the action of slide bar limit, and then drive the top cover to rise and fall through the connecting plate, which can effectively increase the height of the truck body, making it convenient to carry more goods in a single transport, and has practicality.

[0015] 2. Compared with the prior art, this type of truck body with adjustable height, through the coordinated structure of frame, telescopic sleeve, limit frame, positioning pin, pressure plate, spring and positioning hole, can, after the top cover is raised, use the telescopic sleeve to pull it open to cover and protect the goods that exceed the original height of the body. The positioning pin is used to fix the limit frame in the positioning hole, so as to prevent the telescopic sleeve from reciprocating during the vehicle's movement, which would cause the goods to lose their protective effect. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a top view of the structure of this utility model;

[0018] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0019] Figure 3 This is a side view of the present invention.

[0020] Figure 4 This is a cross-sectional structural diagram of the carriage of this utility model.

[0021] Explanation of symbols in the diagram:

[0022] 1. Carriage body; 2. Lead screw; 3. Slide rod; 4. Slider; 5. Connecting plate; 6. Top cover; 7. Frame; 8. Telescopic sleeve; 9. Limiting frame; 10. Positioning pin; 11. Pressure plate; 12. Spring; 13. Positioning hole; 14. Rotating groove; 15. Adjusting shaft; 16. Hook; 17. Hanging rod. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0025] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Reference Figure 1-4 The present invention will now describe a truck body with adjustable height according to an embodiment of the present invention. A truck body with adjustable height includes a body 1 and a roof 6. A lead screw 2 and a sliding rod 3 are rotatably and fixedly connected to both sides of the body 1. A slider 4 is threaded onto the front and rear outer walls of the lead screw 2. A connecting plate 5 is rotatably connected to the upper end of the slider 4, and the other end of the connecting plate 5 is rotatably connected to the lower surface of the roof 6.

[0028] The upper part of both sides of the carriage body 1 is provided with a sliding groove. The lead screw 2 is rotatably connected in the sliding groove. A partition is fixedly connected in the middle of the sliding groove. The front and rear threads of the lead screw 2 are symmetrically arranged about the partition, so that rotating the lead screw 2 can drive the slider 4 located at the front and rear ends to move relative to each other.

[0029] The slide bar 3 is fixedly connected between the front and rear inner walls of the slide groove, and the slider 4 is slidably connected to the outer wall of the slide bar 3, using the slide bar 3 to limit the movement of the slider 4.

[0030] Synchronous motors are fixedly connected to both sides of the rear end face of the carriage body 1. The output ends of the two synchronous motors are fixedly connected to the rear ends of the two lead screws 2 respectively. The synchronous motors drive the lead screws 2 to rotate, thereby controlling the movement of the slider 4.

[0031] A frame 7 is fixedly connected to the outer wall of the top cover 6. A telescopic sleeve 8 is fixedly connected to the lower end face of the frame 7. A limit frame 9 is fixedly connected to the lower end face of the telescopic sleeve 8. Positioning pins 10 are slidably connected to both sides of the limit frame 9. Pressure plates 11 are fixedly connected to the outer walls of the two positioning pins 10. A spring 12 is fixedly connected between the pressure plate 11 and the outer wall of the limit frame 9. Positioning holes 13 are opened on both outer walls of the carriage body 1. The positioning pins 10 are movably sleeved in the positioning holes 13. By using the positioning pins 10 sleeved in the positioning holes 13, the limit frame 9 can be fixed relative to the carriage body 1, thereby ensuring that the telescopic sleeve 8 can always cover the outer end of the goods after being stretched, forming a protective effect.

[0032] The lower end opening area of ​​the limiting frame 9 is larger than the upper end opening area of ​​the carriage body 1. The limiting frame 9 is made of plastic plate to ensure that the carriage body 1 and the synchronous motor can be covered and protected at the same time when the limiting frame 9 is lowered.

[0033] The end of the positioning pin 10 away from the limit frame 9 is fixedly connected to a pull cap. The spring 12 is movably connected to the outer wall of the rod of the pressure plate 11. When the positioning pin 10 is pulled, the spring 12 is in a stretched state. Therefore, the spring 12 can ensure that after the positioning pin 10 is inserted into the positioning hole 13, it will not easily be completely dislodged from the positioning hole 13 due to the shaking of the vehicle during driving, thereby causing the telescopic sleeve 8 to pull the limit frame 9 to reciprocate.

[0034] The front end of the frame 7 is provided with a rotating groove 14, and a hook 16 is rotatably installed in the rotating groove 14. The front end of the limiting frame 9 is fixedly connected to a hanging rod 17. The lower end of the hook 16 is sleeved on the outer wall of the hanging rod 17. The front end of the frame 7 is rotatably connected to an adjusting shaft 15. The hook 16 is fixedly connected to the outer wall of the adjusting shaft 15. When the top cover 6 is not raised, the limiting frame 9 can be fixed relative to the frame 7 by using the hook 16 to connect the hanging rod 17, so as to prevent the telescopic sleeve 8 from being accidentally unfolded. The adjusting shaft 15 is made of a damping rotating shaft to prevent random rotation.

[0035] Working principle: When a large amount of goods are transported in a single trip through the carriage body 1, the synchronous motor drives the lead screw 2 to rotate, thereby controlling the slider 4 to move. This allows the top cover 6 to rise through the connecting plate 5, increasing the height of the carriage and enabling it to hold more goods. Then, the adjusting shaft 15 drives the hook 16 to rotate, disengaging it from the hanging rod 17 and lowering the limiting frame 9. This allows the telescopic sleeve 8 to be pulled out to cover the goods. The positioning pin 10 is then used to position the limiting frame 9 within the positioning hole 13, preventing the telescopic sleeve 8 from reciprocating during vehicle movement and ensuring that goods exceeding the original height of the carriage are protected.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A freight car with adjustable height, comprising a car body (1) and a roof (6), characterized in that: Both sides of the carriage body (1) are respectively rotatably and fixedly connected to a lead screw (2) and a slide rod (3). The front and rear outer walls of the lead screw (2) are threaded with a slider (4). The upper end of the slider (4) is rotatably connected to a connecting plate (5). The other end of the connecting plate (5) is rotatably connected to the lower end surface of the top cover (6).

2. The freight car with adjustable height as described in claim 1, characterized in that: The upper ends of both sides of the carriage body (1) are provided with sliding grooves. The lead screw (2) is rotatably connected in the sliding groove. A partition is fixedly connected in the middle of the sliding groove. The front and rear rod threads of the lead screw (2) are symmetrically arranged about the partition.

3. A freight car with adjustable height as described in claim 1, characterized in that: The slide bar (3) is fixedly connected between the front and rear inner walls of the slide groove, and the slider (4) is slidably connected to the outer wall of the slide bar (3).

4. A freight car with adjustable height as described in claim 1, characterized in that: Synchronous motors are fixedly connected to both sides of the rear end face of the carriage body (1), and the output ends of the two synchronous motors are fixedly connected to the rear ends of the two lead screws (2).

5. A freight car with adjustable height as described in claim 1, characterized in that: A frame (7) is fixedly connected to the outer wall of the top cover (6). A telescopic sleeve (8) is fixedly connected to the lower end face of the frame (7). A limit frame (9) is fixedly connected to the lower end face of the telescopic sleeve (8). A positioning pin (10) is slidably connected to both sides of the limit frame (9). A pressure plate (11) is fixedly connected to the outer wall of the two positioning pins (10). A spring (12) is fixedly connected between the pressure plate (11) and the outer wall of the limit frame (9). Positioning holes (13) are opened on both sides of the outer wall of the carriage body (1). The positioning pin (10) is movably sleeved in the positioning hole (13).

6. A freight car with adjustable height as described in claim 5, characterized in that: The lower end face opening area of ​​the limiting frame (9) is larger than the upper end face area of ​​the carriage body (1), and the limiting frame (9) is made of plastic plate.

7. A freight car with adjustable height as described in claim 5, characterized in that: The end of the positioning pin (10) away from the limiting frame (9) is fixedly connected to a pull cap, and the spring (12) is movably connected to the outer wall of the rod body of the pressure plate (11).

8. A freight car with adjustable height as described in claim 5, characterized in that: The front end of the frame (7) is provided with a rotating groove (14), and a hook (16) is rotatably arranged in the rotating groove (14). The front end of the limiting frame (9) is fixedly connected to a hanging rod (17), and the lower end of the hook (16) is sleeved on the outer wall of the hanging rod (17). The front end of the frame (7) is rotatably connected to an adjusting shaft (15), and the hook (16) is fixedly connected to the outer wall of the adjusting shaft (15).

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