Multi-functional gas storage and stepping device

Abstract

The utility model relates to the field of transport vehicles, concretely relates to a multifunctional gas storage and step device. Including gas storage support, step assembly and gas storage bucket, gas storage support includes bottom layer frame, top layer frame located above bottom layer frame and vertical support structure connected bottom layer frame and top layer frame, bottom layer frame includes two bottom layer cross beams and two bottom layer longitudinal beams, top layer frame includes two top layer longitudinal beams, vertical support structure includes four vertical beams, step assembly is installed on gas storage support, step assembly includes first layer step device located at bottom, second layer step board located at middle and third layer step board located at top, gas storage bucket is installed on gas storage support, and gas storage bucket is hoisted below bottom layer frame of gas storage support, and gas storage bucket is installed between top layer frame and bottom layer frame, the utility model integrates three -dimensional frame structure by the gas storage support and step assembly into an organic whole, and the space, cost and efficiency predicament brought by traditional separate design is fundamentally solved.

Description

Technical Field

[0001] This utility model relates to the field of transport vehicles, specifically to a multifunctional gas storage and step device. Background Technology

[0002] Currently, in the commercial transport and engineering vehicle sectors, the braking system and personnel boarding facilities are still generally configured using a separate design architecture. In traditional solutions, the air tank, as a key air source component of the braking system, is typically mounted independently on the outside or bottom of the vehicle frame's longitudinal beams, rigidly fixed to the frame via specialized connectors. Meanwhile, the step brackets used by the driver and maintenance personnel to enter and exit the vehicle are a separate assembly, often located on the side of the cab or at the front of the cargo box, also connected to the frame with a separate bracket. Although both serve the same function of the vehicle, their structural designs are completely separate and operate independently. This discrete layout leads to a distinctly discrete characteristic in the overall vehicle structure: First, the two bracket systems occupy space on both sides and longitudinally of the frame, and their installation positions cannot overlap, resulting in the redundant use of valuable vehicle space, which is particularly prominent in the design of compact commercial vehicles and severely restricts the flexibility of the layout of other functional modules; Second, the number of parts increases exponentially, with each bracket body, connecting plate, and fastener requiring independent configuration, which not only increases the cost of raw material procurement and processing but also leads to an increase in the overall vehicle weight, hindering the achievement of lightweight goals; Third, due to the lack of structural reuse and collaborative stress-bearing mechanisms, the rigidity and strength of the two independent brackets depend entirely on their own structures, requiring the addition of numerous reinforcing ribs in their respective weak points, further exacerbating the cost and weight burden; In addition, the discrete structure requires separate positioning, multiple welding or bolting connections during the assembly process, which is cumbersome and accumulates significant errors, affecting the overall vehicle assembly efficiency and dimensional accuracy. More importantly, within the limited chassis length, the number of air tanks that can be installed is strictly limited by the available space on the brackets. Traditional planar layouts struggle to overcome this limitation and cannot meet the higher demands of long-wheelbase, heavy-duty vehicles for brake air storage capacity. Therefore, how to overcome the limitations of separate layouts through structural innovation, while ensuring the proper functioning of air storage and vehicle access, and achieving improved space utilization, component integration, and increased installation capacity, has become a pressing technical challenge in this field. Summary of the Invention

[0003] The purpose of this utility model is to provide a multifunctional air storage and step device to solve the problem of how to break through the limitations of separate layout through structural innovation while ensuring the normal realization of air storage and boarding functions, thereby improving space utilization, integrating components and expanding the number of installations.

[0004] To achieve the above objectives, the following technical solution is adopted.

[0005] A multifunctional gas storage and stepping device includes a gas storage bracket, a stepping assembly, and a gas storage tank. The gas storage bracket includes a bottom frame, a top frame located above the bottom frame, and a vertical support structure connecting the bottom frame and the top frame. The bottom frame includes two bottom horizontal beams and two bottom vertical beams, the top frame includes two top vertical beams, and the vertical support structure includes four vertical beams. The stepping assembly is mounted on the gas storage bracket and includes a first-layer stepping device at the bottom, a second-layer stepping plate in the middle, and a third-layer stepping plate at the top. The gas storage tank is mounted on the gas storage bracket, suspended below the bottom frame of the gas storage bracket, and also installed between the top frame and the bottom frame.

[0006] Optionally, the second layer of step plates is connected to the bottom crossbeams and bottom longitudinal beams of the bottom frame by welding.

[0007] Optionally, the third-layer step plate is connected to the top longitudinal beam of the top layer frame by bolts.

[0008] Optionally, the first layer step device includes a step bend and a step plate disposed on the step bend, wherein the step bend is inserted into the bottom longitudinal beam of the bottom frame and fixedly connected.

[0009] Optionally, it also includes a gas storage tank assembly, which includes the gas storage tank, a mounting block, and a clamp, and the gas storage tank is fixed to the gas storage bracket by the clamp and the mounting block.

[0010] Optionally, two gas storage tanks are suspended below the bottom frame of the gas storage bracket, and a gas storage tank is installed between the top frame and the bottom frame of the gas storage bracket.

[0011] Optionally, the vertical beam of the vertical support structure is provided with a first bolt hole, and the gas storage bracket is bolted to the vehicle frame through the first bolt hole.

[0012] Optionally, reinforcing blocks are provided between the bottom horizontal beams and bottom vertical beams of the bottom frame and the vertical beams of the vertical support structure.

[0013] Optionally, the cross-sectional shape of the bottom crossbeam of the bottom frame, the bottom longitudinal beam of the bottom frame, the top longitudinal beam of the top frame, and the vertical beam of the vertical support structure is selected from L-shaped, U-shaped, square tube, or round tube.

[0014] Optionally, the mounting direction of the mounting block of the gas storage tank assembly is adjustable to adjust the installation orientation of the gas storage tank.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention fundamentally solves the space, cost, and efficiency dilemmas of traditional separate designs by integrating the air storage bracket and step assembly into a unified three-dimensional frame structure. Specifically, the air storage bracket adopts a double-layer layout of a bottom frame and a top frame, combined with four vertical support structures, to construct a three-dimensional load-bearing space. This allows the air tank to break through the constraints of the traditional single-layer planar arrangement, achieving a dual configuration of hoisting below the bottom frame and installation between the top and bottom frames. This not only increases the number of air tanks installed from one to three without increasing the lateral footprint of the bracket, but also optimizes the utilization efficiency of the vehicle frame space resources through three-dimensional distribution. The step assembly includes a first-layer step device at the bottom, a second-layer step plate in the middle, and a third-layer step plate at the top, forming a three-level boarding passage. Its installation position is highly integrated with the vertical support structure and frame beam system of the air storage bracket. The three-level steps connect sequentially from bottom to top to the bottom longitudinal beam, bottom cross beam, and top longitudinal beam, sharing the main structure of the bracket as the load-bearing foundation. This eliminates the additional columns and bases required by traditional independent step brackets, significantly reducing the total number of parts. This integrated design allows the step assembly and air storage bracket to withstand the load of people stepping on them while also resisting bending and torsional stresses. The reinforcing blocks at the junction of the crossbeams and longitudinal beams further enhance the joint stiffness, while the vertical support structure between the bottom and top frames significantly improves the overall deformation resistance. The overall structural strength and stability far exceed the simple stacking effect of traditional separate brackets. The combined connection scheme—welding the second-layer step plate to the bottom crossbeams and longitudinal beams, bolting the third-layer step plate to the top longitudinal beam, and inserting the step bend of the first-layer step device into the bottom longitudinal beam for fixation—balances assembly convenience with structural reliability and adapts to the stress characteristics of different parts. The air storage tank assembly achieves rapid fixation of the air storage tank and air storage bracket through a modular combination of mounting blocks and hoops. The adjustable installation direction of the mounting blocks provides flexible adjustment capabilities for the air storage tank's orientation, enhancing the device's adaptability to the layout requirements of different vehicle models. The crossbeams, longitudinal beams, and vertical support structures of the gas storage bracket can adopt L-shaped, U-shaped, square, or round tube sections. This wide range of material selection facilitates optimized matching based on load-bearing requirements and cost targets, further enhancing the engineering practicality of the design. Ultimately, this device replaces the traditional two independent brackets with a single three-dimensional frame, achieving multiple technical effects such as structural compactness, lightweighting, cost reduction, and functional integration, providing a more efficient technical approach for the overall layout design of commercial vehicles. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a multifunctional gas storage and stepping device according to the present invention; Figure 2 This is a schematic diagram of a gas storage bracket for a multifunctional gas storage and stepping device according to the present invention; Figure 3This is a schematic diagram of the gas storage bracket of the multifunctional gas storage and step device of this utility model from another perspective; Figure 4 This is a schematic diagram of the gas storage tank assembly of a multifunctional gas storage and stepping device according to this utility model; The components are: 1. Step assembly; 101. Third step plate; 102. Second step plate; 103. Step bend; 104. Step plate; 2. Gas storage bracket; 201. Bottom longitudinal beam; 202. Bottom horizontal beam; 203. Vertical beam; 204. Reinforcing block; 205. Top longitudinal beam; 3. Gas storage tank assembly; 303. Lower mounting block; 304. Upper mounting block; 305. Hoop; 306. Gas storage tank; 4. Second bolt hole; 5. First bolt hole. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0018] The following detailed description is exemplary and intended to provide further detailed explanation of the present invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention.

[0019] like Figures 1-4 As shown, this utility model provides a multifunctional air storage and step device. This multifunctional air storage and step device is an integrated structure designed for commercial transport vehicles or engineering vehicles. By organically combining the air storage function with the step function, it improves space utilization and optimizes structural performance. The overall structure of the device revolves around the air storage bracket 2. Both the step assembly 1 and the air storage tank assembly 3 are mounted on the air storage bracket 2, forming a compact and stable whole. This effectively solves the problems of large space occupation and insufficient structural rigidity of traditional separate brackets.

[0020] The gas storage support 2, as the core load-bearing structure of the entire device, has a bottom frame consisting of two bottom horizontal beams 202 and two bottom vertical beams 201 forming a rectangular frame structure. This frame structure provides a stable bottom support surface, ensuring the solid foundation for the entire device. The two bottom horizontal beams 202 are arranged in parallel, and the two bottom vertical beams 201 are perpendicular to the bottom horizontal beams 202. The ends of the two beams are fixedly connected by welding, and the welds at the connection are continuous and full, ensuring the integrity and deformation resistance of the bottom frame. The top frame is located directly above the bottom frame and consists of two parallel top vertical beams 205. The length of the top vertical beams 205 is the same as that of the bottom vertical beams 201, and their ends extend to the top of the corresponding end vertical beams 203 of the bottom frame, providing an installation carrier for the third-layer step plate 101 and the upper gas storage tank 306. The vertical support structure connecting the bottom frame and the top frame includes four vertical beams 203. The four vertical beams 203 are respectively vertically set at the connection points of the four corners of the bottom frame. That is, the lower end of each vertical beam 203 is fixedly connected to the intersection point of the bottom horizontal beam 202 and the bottom longitudinal beam 201, and the upper end is fixedly connected to the end of the top longitudinal beam 205, forming a cuboid frame structure. This structural design can evenly distribute the load and improve the load-bearing capacity of the entire gas storage support 2.

[0021] Reinforcing blocks 204 are installed at the connections between the bottom horizontal beam 202 and the vertical beam 203, and at the connections between the bottom longitudinal beam 201 and the vertical beam 203 of the bottom frame. The reinforcing blocks 204 are made of the same metal sheet as the horizontal and longitudinal beams, and their shape is designed to fit the structure of the connection, typically being triangular or rectangular. One side of the reinforcing block 204 is attached to the side of the bottom horizontal beam 202 or the bottom longitudinal beam 201, and the other side is attached to the side of the vertical beam 203. They are fixedly connected to both by welding. During welding, it is ensured that there are no gaps between the reinforcing block 204 and the components, and the weld seam covers the edge of the reinforcing block 204, thereby enhancing the local strength and rigidity of the connection and preventing cracking or deformation at the connection due to concentrated stress during long-term use. This further improves the overall stability and service life of the gas storage support 2.

[0022] The vertical beam 203 has first bolt holes 5 for connection with the vehicle frame. Each vertical beam 203 has at least two first bolt holes 5, which are evenly distributed along the length of the vertical beam 203. The hole diameter is determined according to the bolt specifications for connecting to the vehicle frame to ensure that the bolts can pass through smoothly and fit tightly. During installation, the air storage bracket 2 is aligned with the mounting seat on the vehicle frame through these first bolt holes 5. High-strength bolts are passed through the first bolt holes 5 and tightened with the threaded holes on the mounting seat on the vehicle frame. The tightening torque of the bolts is set according to the load requirements of the vehicle to ensure that the connection between the entire device and the vehicle frame is firm and reliable, and that there will be no loosening or displacement during vehicle operation.

[0023] The cross-sectional shapes of the bottom horizontal beam 202, bottom longitudinal beam 201, top longitudinal beam 205, and vertical beam 203 of the gas storage bracket 2 can be selected from L-shaped, U-shaped, square tube, or round tube according to the specific usage scenario and stress requirements of the vehicle. Among them, the L-shaped cross-section beam is made of bent metal sheet, which is simple to process and has a low cost, making it suitable for applications with relatively low stress. The opening orientation of the U-shaped cross-section beam can be adjusted according to installation requirements, and its torsional and bending resistance is superior to that of the L-shaped cross-section beam, making it suitable for applications such as the bottom frame that need to withstand larger loads. The square tube cross-section beam has four flat sides, a symmetrical structure, balanced strength and stiffness, and is easy to fit and fix with other components during connection, making it a widely used cross-section form. The round tube cross-section beam has uniform stress distribution and can effectively disperse impact loads, making it suitable for applications requiring vibration or impact resistance, such as the vertical beam 203. During processing, the wall thickness of beams with different cross-sectional shapes is determined based on stress calculations to ensure that the overall weight is reduced as much as possible while meeting strength requirements.

[0024] Step assembly 1 is mounted on air storage bracket 2, forming a three-level boarding structure to facilitate workers getting on and off the vehicle for operations. The second-level step plate 102, located in the middle, is made of sheet metal. Its dimensions are designed according to the vehicle's boarding space requirements. The width is typically large enough for an adult to stand with both feet, and the length matches the width of the bottom frame. The second-level step plate 102 is connected to the bottom crossbeam 202 and bottom longitudinal beam 201 of the bottom frame by welding. During welding, the lower surface of the step plate 104 is in contact with the upper surface of the bottom crossbeam 202 and bottom longitudinal beam 201. The weld seam is continuously distributed along the edge of the step plate 104, and a full welding process is used to ensure the connection strength and prevent loosening of the connection due to long-term foot traffic. At the same time, the weld seam surface is treated to prevent corrosion.

[0025] The third step 101, located at the top, is also made of metal sheet. Its size is slightly smaller than the second step 102. The surface can be textured with anti-slip patterns or raised areas to enhance friction when boarding and prevent slipping. The third step 101 is bolted to the top longitudinal beam 205 of the top frame. Two second bolt holes 4 are provided at each end of the third step 101, and corresponding second bolt holes 4 are also provided on the top longitudinal beam 205. During installation, the step 104 is placed on the top longitudinal beam 205, aligning the second bolt holes 4. High-strength bolts are then passed through the second bolt holes 4 and tightened with nuts. The number and specifications of the bolts are determined based on the load-bearing capacity of the step 104. Typically, two bolts are provided at each connection end to ensure the stability and detachability of the connection, facilitating subsequent maintenance and replacement.

[0026] The first-layer step device at the bottom consists of a step bend 103 and a step plate 104. The step bend 103 is made of seamless steel pipe through bending, with straight sections at both ends and a bent section in the middle. The angle of the bent section is designed according to the comfort of boarding, usually between 30 and 45 degrees, so that the force on the feet of the staff is more reasonable when boarding. The step plate 104 is fixed to the bent section of the step bend 103 and is made of anti-slip steel plate. It is fixed to the step bend 103 by welding or bolting. If welding is used, the weld seam is distributed along the edge of the step plate 104 to ensure a firm connection. If bolting is used, bolt holes are provided on the step plate 104, which are aligned with the corresponding holes on the step bend 103 and fixed with bolts, making it easy to replace damaged step plates 104. The straight sections at both ends of the step bend 103 are inserted into the bottom longitudinal beam 201 of the bottom frame. The insertion depth is not less than 1.5 times the diameter of the bottom longitudinal beam 201 to ensure the stability of the connection. After insertion, it is fixed by welding. The welding position is on the outer periphery of the connection between the step bend 103 and the bottom longitudinal beam 201. The weld is around the whole, so that the two form a solid whole and at the same time enhance the local strength of the bottom longitudinal beam 201.

[0027] The air tank assembly 3 includes an air tank 306, a mounting block, and a clamp 305. The air tank 306 is made of high-strength steel plate and has good sealing and pressure resistance, capable of storing compressed air required by the vehicle's braking system. The mounting block is a block-shaped metal structure with a flat surface machined on one side to fit against the crossbeam or longitudinal beam of the air storage bracket 2, and an arc-shaped groove machined on the other side to fit the outer wall of the air tank 306. The curvature of the arc-shaped groove is consistent with the outer diameter of the air tank 306, ensuring that the mounting block fits tightly against the air tank 306 and distributing the weight load of the air tank 306. The mounting block includes an upper mounting block 304 and a lower mounting block 303. The upper mounting block 304 is used to install and fix the upper air tank 306; the lower mounting block 303 is used to install and fix the lower air tank 306. The hoop 305 is a ring-shaped metal belt made of spring steel with good elasticity. Its length is slightly larger than the outer circumference of the gas storage tank 306. Connecting ear plates are provided at both ends, and bolt holes are opened on the ear plates.

[0028] The air tank 306 is fixed to the air storage bracket 2 by a clamp 305 and mounting blocks. During installation, first, two mounting blocks are symmetrically attached to the outer periphery of the air tank 306. Then, the clamp 305 is wrapped around the air tank 306, aligning the ear plates at both ends of the clamp 305 with the corresponding positions of the two mounting blocks. Bolts are passed through the bolt holes on the ear plates and tightened, so that the clamp 305 tightly wraps around the air tank 306, fixing the air tank 306 to the mounting blocks. The mounting blocks then securely connect the air tank to the air storage bracket 2. This fixing method effectively buffers vibrations during vehicle operation, avoids hard friction between the air tank 306 and the mounting blocks, and facilitates the disassembly and maintenance of the air tank 306.

[0029] Two gas storage tanks 306 are suspended below the bottom frame of the gas storage support 2. These two gas storage tanks 306 are symmetrically arranged along the length of the bottom frame and are fixed to the bottom crossbeam 202 by mounting blocks. The mounting blocks are fixed to the bottom crossbeam 202 by welding to ensure load-bearing capacity. The axes of the two gas storage tanks 306 are parallel to each other and consistent with the length of the bottom frame, making reasonable use of the space below the bottom frame and increasing the gas storage capacity. A gas storage tank 306 is installed between the top frame and the bottom frame of the gas storage support 2. This gas storage tank 306 is located between two vertical beams 203 and is fixed to the bottom longitudinal beam 205 or the bottom crossbeam 202 by mounting blocks. Its axis is parallel to the axis of the gas storage tank 306 below the bottom frame, forming a layered layout. This makes full use of the internal space of the gas storage support 2 and increases the number of gas storage tanks 306 without increasing the overall space occupied by the device.

[0030] The mounting block of the air tank assembly 3 has an adjustable mounting direction to accommodate the pipe connection requirements of different vehicle models. The mounting block has multiple mounting holes distributed along different directions. When adjusting the mounting orientation of the air tank 306, different mounting holes can be selected to connect to the air tank bracket 2, changing the fixing angle of the mounting block on the air tank bracket 2, thereby adjusting the opening direction of the air tank 306. For example, when the vehicle's air pipe is connected from the side, the mounting block can be adjusted so that the opening of the air tank 306 faces the side; when the air pipe is connected from above, the mounting block can be adjusted so that the opening of the air tank 306 faces upwards. During adjustment, the connection surfaces of the mounting block and the air tank bracket 2 remain in contact to ensure connection stability. Simultaneously, the central axis of the air tank 306 remains perpendicular to or at a set angle to the mounting surface to avoid pipe connection difficulties or stress concentration due to improper mounting orientation.

[0031] The installation process of this multi-functional air storage and step device is as follows: First, based on the specific structure of the vehicle, select crossbeams, longitudinal beams, and vertical beams 203 with appropriate cross-sectional shapes, and fabricate the air storage bracket 2. Weld the bottom crossbeam 202 and bottom longitudinal beam 201 to form the bottom frame. Weld vertical beams 203 at the four corners of the bottom frame, and weld the top longitudinal beam 205 at the upper end of the vertical beam 203 to form a complete air storage bracket 2 frame. Then, weld reinforcing blocks 204 at the connection between the crossbeams and vertical beams 203, and machine the first bolt holes 5 on the vertical beam 203. Next, install the step assembly 1. Insert the step bend 103 of the first-layer step device into the bottom longitudinal beam 201 and weld it in place. Install the step plate 104 on the step bend 103. Weld the second-layer step plate 102 onto the crossbeams and longitudinal beams of the bottom frame. Fix the third-layer step plate 101 to the top longitudinal beam 205 with bolts. Next, install the air tank assembly 3. Based on the required air storage capacity, install two air tanks 306 below the bottom frame and one air tank 306 between the top and bottom frames. Secure the air tank 306 to the air storage bracket 2 using mounting blocks and clamps 305. Adjust the mounting direction of the mounting blocks according to the pipeline connection requirements to determine the opening orientation of the air tank 306. Finally, connect the entire device to the frame through the first bolt hole 5 on the vertical beam 203, tighten the bolts, and the installation is complete.

[0032] During operation, the air tank 306 is connected to the vehicle's braking system via pipelines to store compressed air and provide a power source for the braking system. When workers need to board the vehicle, they can safely and conveniently get on and off by stepping on the first, second, and third step plates 101. The entire device adopts an integrated design, combining the air storage bracket 2 and the step bracket into one, significantly reducing the space required for setting up two separate brackets and making the overall vehicle layout more compact. The components are firmly fixed together by welding, bolting, and other methods. With the addition of reinforcing blocks 204, the rigidity, strength, and stability of the overall structure are significantly improved, enabling it to withstand vibrations and impacts during vehicle operation. The multi-position installation design of the air tank 306 increases the air storage capacity within a limited space, meeting the usage requirements of the vehicle's braking system.

[0033] As is known from common technical knowledge, this utility model can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the above-disclosed embodiments are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

Claims

1. A multifunctional gas storage and stepping device, characterized in that, The system includes a gas storage bracket (2), a step assembly (1), and a gas storage tank (306). The gas storage bracket (2) includes a bottom frame, a top frame located above the bottom frame, and a vertical support structure connecting the bottom frame and the top frame. The bottom frame includes two bottom horizontal beams (202) and two bottom longitudinal beams (201). The top frame includes two top longitudinal beams (205). The vertical support structure includes four vertical beams (203). The step assembly (1) is installed on the gas storage bracket (2). The step assembly (1) includes a first-layer step device at the bottom, a second-layer step plate (102) in the middle, and a third-layer step plate (101) at the top. The gas storage tank (306) is installed on the gas storage bracket (2). The gas storage tank (306) is suspended below the bottom frame of the gas storage bracket (2). The gas storage tank (306) is also installed between the top frame and the bottom frame.

2. The multifunctional gas storage and stepping device according to claim 1, characterized in that, The second layer step plate (102) is connected to the bottom crossbeam (202) and bottom longitudinal beam (201) of the bottom frame by welding.

3. The multifunctional gas storage and stepping device according to claim 1, characterized in that, The third-layer step plate (101) is connected to the top-layer longitudinal beam (205) of the top-layer frame by bolts.

4. The multifunctional gas storage and stepping device according to claim 1, characterized in that, The first layer step device includes a step bend (103) and a step plate (104) disposed on the step bend (103). The step bend (103) is inserted into the bottom longitudinal beam (201) of the bottom frame and fixedly connected.

5. The multifunctional gas storage and stepping device according to claim 1, characterized in that, It also includes a gas storage tank assembly (3), which includes the gas storage tank (306), a mounting block and a clamp (305). The gas storage tank (306) is fixed to the gas storage bracket (2) by the clamp (305) and the mounting block.

6. The multifunctional gas storage and stepping device according to claim 5, characterized in that, Two gas storage tanks (306) are suspended below the bottom frame of the gas storage bracket (2), and a gas storage tank (306) is installed between the top frame and the bottom frame of the gas storage bracket (2).

7. The multifunctional gas storage and stepping device according to claim 1, characterized in that, The vertical beam (203) of the vertical support structure is provided with a first bolt hole (5), and the gas storage bracket (2) is bolted to the vehicle frame through the first bolt hole (5).

8. The multifunctional gas storage and stepping device according to claim 1, characterized in that, A reinforcing block (204) is provided between the bottom horizontal beam (202) and bottom vertical beam (201) of the bottom frame and the vertical beam (203) of the vertical support structure.

9. The multifunctional gas storage and stepping device according to claim 1, characterized in that, The cross-sectional shapes of the bottom horizontal beam (202) of the bottom frame, the bottom longitudinal beam (201) of the bottom frame, the top longitudinal beam (205) of the top frame, and the vertical beam (203) of the vertical support structure are selected from L-shaped, U-shaped, square tube, or round tube.

10. The multifunctional gas storage and stepping device according to claim 5, characterized in that, The mounting direction of the mounting block of the gas storage tank assembly (3) is adjustable to adjust the mounting orientation of the gas storage tank (306).

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