Carriage with lifting roof

Abstract

A carriage wall plate is in rigid connection with a carriage framework, a driving assembly is fixed to the carriage wall plate, the output end of the driving assembly is connected with a movable wheel assembly capable of ascending and descending, a fixed rail is arranged on the carriage framework, and the movable wheel assembly is in closed-loop transmission connection with the lifting roof through a transmission chain. The lifting car roof is arranged on the fixed rail in a lifting mode, and the fixed rail is provided with a two-way guide groove. When the driving assembly is started, power is transmitted to the driving wheel assembly through the transmission chain, and then the lifting car roof is driven to do lifting motion along the fixed track. The bidirectional guide grooves in the fixed rails not only provide accurate motion trails for the lifting car roof, but also ensure the stability and reliability of the lifting process, so that the lifting car roof can be flexibly adjusted according to actual requirements, and the use space of a carriage is effectively increased.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics vehicle equipment, and in particular to a carriage with a lifting roof. Background Art

[0002] With the development of society and the improvement of people's living standards, small and medium-sized vehicles have been widely used in daily life. However, these vehicles often face the problem of limited space in the car during use, especially when large items need to be transported or special operations need to be performed. The traditional fixed roof design cannot meet the needs of space expansion. In addition, in some special occasions, such as urban logistics distribution, outdoor operations, etc., the lifting height of the vehicle needs to be precisely controlled to adapt to different working environments and requirements.

[0003] Although the existing lifting roof technology has solved the problem of expanding the space inside the car to a certain extent, it still has some shortcomings. For example, some lifting roofs have complex structures, high manufacturing costs, poor stability during the lifting process, and are prone to shaking and noise. In addition, the control accuracy of some lifting roofs is not enough to meet the demand for precise control of the lifting height, which limits its application scope in some occasions with strict height requirements, such as urban height-restricted areas or special working environments. It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0004] In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a vehicle compartment with a liftable roof, so as to solve the problems of high cost and poor stability of the liftable roof in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a car with a lifting roof, comprising a car frame, a car wall panel, a lifting device and a lifting roof: the lifting device comprises a driving assembly, a moving wheel assembly, a transmission chain and a fixed track; the car wall panel is rigidly connected to the car frame, the driving assembly is fixed on the car wall panel, the output end of the driving assembly is connected to the lifting moving wheel assembly, the car frame is provided with a fixed track, the moving wheel assembly forms a closed-loop transmission connection with the lifting roof through a transmission chain, the lifting roof can be lifted and lowered on the fixed track, and the fixed track is provided with a bidirectional guide groove; it also includes a welding block, and the transmission chain is fixedly connected to the lifting roof through the welding block; the moving wheel assembly comprises a mounting bracket and a pulley rotatably arranged on the mounting bracket, the pulley is movably provided with the transmission chain, one end of the transmission chain is fixed on the mounting bracket, and the other end is welded and fixed to the lifting roof.

[0006] In one embodiment of the present invention, the lifting roof includes a movable slide rail and a top plate. The movable slide rail can be lifted and lowered in the fixed rail, and the four corners of the top plate are provided with the movable slide rail.

[0007] In one embodiment of the present invention, the top plate is a double-layer structure, including an inner insulation layer and an outer protection layer, the insulation layer is made of polyurethane foam material, and the protection layer is made of steel plate.

[0008] In one embodiment of the present invention, the pulley is a double-bearing pulley block, and the ratio of the wheel diameter of the double-bearing pulley block to the pitch of the transmission chain is 1:0.8-1.2.

[0009] In one embodiment of the present invention, the driving component is an electric rod or a push rod.

[0010] In one embodiment of the present invention, it also includes a canvas that blocks the lateral opening of the carriage frame, and the canvas is fixedly connected to the lateral opening of the carriage frame through a zipper or Velcro.

[0011] As described above, the carriage with a lifting roof of the present invention has the following beneficial effects: when the driving assembly is started, the power is transmitted to the driving wheel assembly through the transmission chain, thereby driving the lifting roof to perform lifting movement along the fixed track. The bidirectional guide groove on the fixed track not only provides a precise movement trajectory for the lifting roof, but also ensures the stability and reliability of the lifting process, so that the lifting roof can be flexibly adjusted according to actual needs, effectively increasing the use space of the carriage, and is suitable for urban logistics distribution, outdoor operations and other working environments, and improving the adaptability and practicality of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 A schematic diagram of the structure of a carriage with a lifting roof provided by the present invention;

[0014] Figure 2 A schematic diagram of a roof closing structure of a vehicle compartment with a lifting roof provided by the present invention;

[0015] Figure 3 A schematic diagram of the roof lifting structure of a carriage with a lifting roof provided by the present invention.

[0016] Component number description

[0017] 1. Carriage frame; 2. Carriage wall panel; 3. Drive assembly; 4. Driving wheel assembly; 41. Mounting bracket; 42. Pulley; 5. Transmission chain; 6. Fixed track; 7. Lifting roof; 71. Movable slide rail; 72. Top plate; 8. Welding block; 9. Canvas. DETAILED DESCRIPTION

[0018] The present invention provides a vehicle compartment with a lifting roof. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail below with reference to the accompanying drawings and examples.

[0019] In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "up, down, left, right, etc." are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and should not be understood as limitations on the present invention; in addition, the terms "installation" and "connection" should be understood in a broad sense, and ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0020] See also Figures 1 to 3 The present invention provides a carriage with a lifting roof, and its structural components include a carriage frame 1, a carriage wall panel 2, a lifting device and a lifting roof 7. The lifting device is composed of a driving assembly 3, a driving wheel assembly 4, a transmission chain 5 and a fixed rail 6. The carriage wall panel 2 is rigidly connected to the carriage frame 1, and the driving assembly 3 is fixed on the carriage wall panel 2, and its output end is connected to the lifting driving wheel assembly 4. A fixed rail 6 is provided on the carriage frame 1, and the driving wheel assembly 4 is connected to the lifting roof 7 by means of a transmission chain 5. The lifting roof 7 is lifted and lowered on the fixed rail 6, and the fixed rail 6 is equipped with a bidirectional guide groove.

[0021] It is worth mentioning that in order to further enhance the connection strength and stability between the transmission chain 5 and the lifting roof 7, a welding block 8 is also introduced into the design. The transmission chain 5 is fixedly connected to the lifting roof 7 through the welding block 8, which significantly enhances the connection strength and stability between the transmission chain 5 and the lifting roof 7, and prevents the transmission chain 5 from loosening or falling off during the power transmission process, which greatly improves the reliability and safety of the entire lifting system.

[0022] In another embodiment, the structure of the driving wheel assembly 4 includes a mounting bracket 41 and a pulley 42 rotatably arranged on the mounting bracket 41, and the transmission chain 5 is movably arranged on the pulley 42, and one end of the transmission chain 5 is fixed to the mounting bracket 41, and the other end is welded and fixed to the lifting roof 7. This design optimizes the power transmission path, ensures that the tension of the transmission chain 5 is evenly distributed during operation, and effectively reduces the wear and noise of the chain. In practical applications, according to different working environments and usage requirements, the transmission chain 5 can choose different materials and forms. For example, in certain specific occasions, the transmission chain 5 can be a steel wire rope, which can not only meet the high-intensity use requirements, but also adapt to complex working environments and harsh climatic conditions. .

[0023] The specific method of optimizing the power transmission path is as follows: the output end of the drive assembly 3 is provided with an I-shaped transmission bracket, and the pulleys 42 are rotatably provided on the four corners of the transmission bracket. In addition, two groups of fixed pulleys are symmetrically provided on both sides of the transmission bracket, and the fixed pulleys include top pulleys and bottom pulleys arranged in a row. There are two groups of transmission chains 5, one of which forms a closed loop through the upper corner pulley, top pulley, bottom pulley and lower corner pulley of the transmission bracket. Both ends of the transmission chain are fixed at the center point of the transmission bracket at the same time, and the welding block 8 is provided in the middle of the transmission chain 5, and the transmission chain 5 is fixed to the lifting roof 7 through the welding block 8. The other group of symmetrically arranged transmission chains has the same setting. In the actual movement process, since each group of transmission chains 5 forms a closed loop and forms a stable activity path under the limiting action of the upper corner pulley, the top pulley, the bottom pulley and the lower corner pulley, when the driving assembly 3 drives the transmission bracket to rise and fall, the transmission chain 5 can accurately control the welding blocks 8 on the left and right sides to rise and fall at equal distances at the same time, ensuring the synchronization of the activities of the two, thereby controlling the smooth rise and fall of the lifting roof 7. In the lifting process, the power of the driving assembly 3 is accurately distributed through the driving wheel assembly 4, which can completely avoid the shaking of the lifting roof 7.

[0024] Furthermore, in one embodiment, the structure of the lifting roof 7 includes a movable slide rail 71 and a top plate 72. The movable slide rail 71 can be lifted and lowered in the fixed rail 6, and the four corners of the top plate 72 are equipped with movable slide rails 71. This design enables the lifting roof 7 to move smoothly during the lifting process, reduces friction and wear, and prolongs the service life of the equipment. At the same time, it enhances the adaptability of the lifting roof 7 to different use environments and requirements, and reduces the noise during the lifting process. In more detail, the top plate 72 adopts a double-layer structure design, the inner layer is a heat-insulating layer made of polyurethane foam material, and the outer layer is a protective layer made of steel plate. It can be understood that the heat-insulating layer has excellent heat-insulating properties, can effectively isolate external heat, and maintain the internal temperature of the car stable; the protective layer, by virtue of its high strength and durability, resists external impact and collision, and ensures the safety of the internal structure and items of the car. That is, four slide rails 71 are arranged on the lifting roof 7, and one slide rail 71 is correspondingly arranged on each corner of the lifting roof. Each slide rail 71 is fixedly connected to the transmission chain 5 through one welding block 8. It can be understood that the number of the driving assembly 3 and the transmission bracket is two, see Figure 1 The driving assembly 3 and the transmission bracket arranged on the driving assembly 3 are arranged on the front and rear side car wall panels 2. The lifting roof 7 can be lifted and lowered from four directions at the same time through the moving wheel assembly 4 to ensure the overall stability of the lifting roof 7.

[0025] In addition, in one embodiment, the pulley 42 adopts a double-bearing pulley group, and the ratio of the wheel diameter of the double-bearing pulley group to the pitch of the transmission chain 5 is set to 1:0.8-1.2. This parameter matching optimizes the coordination between the pulley 42 and the transmission chain 5, ensuring that the transmission chain 5 runs smoothly and smoothly, and reducing the chain jumping phenomenon.

[0026] In the design of the lift roof car body, the drive assembly 3 plays a vital role, providing a stable and powerful power source for the car body. In different application scenarios, there are different requirements for the performance, cost and ease of operation of the drive assembly. Therefore, in some embodiments, the drive assembly 3 provides a solution of an electric rod or a push rod to meet the diverse application requirements. As an advanced electric drive device, the electric rod has the characteristics of easy operation and rapid response. It converts electrical energy into mechanical energy through a motor driving a mechanical structure such as a lead screw or a gear, thereby realizing precise control of the lift roof. This design not only simplifies the operation process, but also greatly improves the accuracy and stability of the lifting control. For those scenarios with strict requirements on lifting accuracy, the electric rod is undoubtedly the best choice. Its high-precision positioning capability and smooth operation characteristics can ensure that it will not be damaged during the lifting process. The push rod, with its simple structure, shows a unique charm in certain specific occasions. The push rod is usually driven by a hydraulic or pneumatic system, and the lifting function is realized by the push of a piston or a cylinder. This design not only eliminates complex mechanical transmission components and reduces maintenance costs, but also enables the push rod to operate stably in harsh working environments. For cost-sensitive applications, such as general cargo transportation, material handling on construction sites, etc., actuators are an ideal choice. Their simple structure and reliable performance can provide users with an economical and efficient solution.

[0027] Finally, in some embodiments, the detachable canvas 9 at the side opening adopts a modular design concept. The canvas 9 is made of high-strength composite canvas, and is seamlessly connected to the side opening edge of the car frame 1 through a two-way waterproof zipper system, and is reinforced with Velcro at key stress nodes. This composite fixing scheme not only ensures that the overall air tightness of the side wall of the car reaches the IP54 protection level, but also enables a single person to complete the rapid removal or installation of the entire side canvas. The canvas 9 adopts a three-layer composite structure: the outer layer is 500D Oxford cloth treated with PVDF coating, which has the characteristics of UV resistance and strong weather resistance; the middle layer is implanted with a high-density polyester fiber mesh reinforcement layer to effectively improve the tear resistance; the inner layer is composited with a TPU waterproof film, which can withstand 2000mm water column pressure. In terms of structural design, the edge of the canvas adopts a double-layer edging process, and the embedded elastic steel cable forms a multi-point anchor with the U-shaped guide rail of the car frame, and cooperates with Velcro buckles distributed at a spacing of 150mm to ensure that the canvas will not flap and vibrate during the driving of the vehicle. When it is necessary to load and unload goods quickly, the top zipper can be unfastened along the preset separation line, and the canvas can be rolled up to the special storage slot on the top of the car; in the cold chain transportation mode, the insulation lining can be quickly installed through the side Velcro; in extreme weather, the double-layer canvas structure can form an air insulation layer. For maintenance, only a single canvas module needs to be removed, and there is no need to replace the entire module, which significantly reduces the maintenance cost and significantly improves the scene adaptability and operational economy of special vehicles.

[0028] In summary, in the carriage with a lifting roof of the present invention, when the driving assembly 3 is started, the power is transmitted to the driving wheel assembly 4 through the transmission chain 5, thereby driving the lifting roof 7 to perform lifting movement along the fixed track 6. The bidirectional guide groove on the fixed track 6 not only provides a precise movement trajectory for the lifting roof 7, but also ensures the stability and reliability of the lifting process, so that the lifting roof 7 can be flexibly adjusted according to actual needs, effectively increasing the use space of the carriage, and is suitable for working environments such as urban logistics distribution and outdoor operations, and improving the adaptability and practicality of the vehicle. Therefore, the present invention effectively overcomes the various shortcomings of the prior art and has a high industrial utilization value.

[0029] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A car with a lifting roof, characterized in that: It includes a carriage frame, a carriage wall panel, a lifting device and a lifting roof: the lifting device includes a driving assembly, a moving wheel assembly, a transmission chain and a fixed track; the carriage wall panel is rigidly connected to the carriage frame, the driving assembly is fixed on the carriage wall panel, the output end of the driving assembly is connected to the lifting moving wheel assembly that can be lifted, the carriage frame is provided with a fixed track, the moving wheel assembly forms a closed-loop transmission connection with the lifting roof through a transmission chain, the lifting roof can be lifted and lowered on the fixed track, and the fixed track is provided with a bidirectional guide groove; it also includes a welding block, the transmission chain is fixedly connected to the lifting roof through the welding block; the moving wheel assembly includes a mounting bracket and a pulley rotatably arranged on the mounting bracket, the pulley is movably provided with the transmission chain, one end of the transmission chain is fixed on the mounting bracket, and the other end is welded and fixed to the lifting roof.

2. The vehicle compartment with a lifting roof according to claim 1, characterized in that: The lifting roof comprises a movable slide rail and a top plate. The movable slide rail can be lifted and lowered in the fixed rail, and the four corners of the top plate are all provided with the movable slide rail.

3. The vehicle compartment with a lifting roof according to claim 2, characterized in that: The top plate is a double-layer structure, comprising an inner heat-insulating layer and an outer protective layer. The heat-insulating layer is made of polyurethane foam material, and the protective layer is made of steel plate.

4. The vehicle compartment with a lifting roof according to claim 3, characterized in that: The pulley is a double-bearing pulley block, and the ratio of the wheel diameter of the double-bearing pulley block to the pitch of the transmission chain is 1:0.8-1.

2.

5. The vehicle compartment with a lifting roof according to claim 1, characterized in that: The driving component is an electric rod or a push rod.

6. The vehicle compartment with a lifting roof according to claim 1, characterized in that: It also includes a canvas that is blocked at the lateral opening of the carriage frame, and the canvas is fixedly connected to the lateral opening of the carriage frame through a zipper or Velcro.

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