Explosion-proof special gas delivery cabinet

Abstract

This utility model discloses an explosion-proof special gas delivery cabinet, relating to the technical field of gas delivery cabinets. It includes a cabinet body with multiple casters equipped with braking mechanisms fixedly installed at the bottom. A cabinet door is hinged to the front of the cabinet body, and a turn-type locking mechanism is provided at the door. A gas cylinder fixing mechanism includes a support base and a drive motor. The support base is fixedly installed on the inner bottom surface of the cabinet body by threaded fasteners. Two horizontal sliding grooves are opened on the top of the support base, and two L-shaped sliding seats are symmetrically slidably installed in the two grooves via T-shaped sliding connectors. This utility model, through its motor-driven clamping structure, can adapt to various gas cylinders of different sizes, improving its applicability. Furthermore, the rubber pad layer provides stable positioning, reducing vibration, collision, and noise. Simultaneously, it balances ease of movement and operational stability, making it suitable for the safe delivery of flammable, explosive, or toxic and harmful special gases, demonstrating high practicality.

Description

Technical Field

[0001] This utility model relates to the field of gas delivery cabinet technology, and in particular to an explosion-proof special gas delivery cabinet. Background Technology

[0002] Explosion-proof special gas delivery cabinets are specialized equipment used for the safe delivery and control of flammable, explosive, or toxic and harmful special gases. Their core function is to prevent gas leaks from causing explosions, poisoning, and other safety accidents. They are not simply storage devices, but rather integrated systems combining four core functions: gas delivery, pressure control, leak detection, and explosion protection. They reliably extract special gases from cylinders or storage tanks and deliver them to the end user through pipelines. Furthermore, they feature multiple safety designs that can trigger alarms and shut off the gas supply in the event of gas leaks or abnormal pressure, as follows.

[0003] A search revealed patent CN219473442U, which discloses an explosion-proof special gas delivery cabinet, relating to the field of special gas delivery technology. The explosion-proof special gas delivery cabinet includes a main body and a control box. The main body houses a gas cylinder containing a special gas; a solenoid valve within the main body connects to the gas cylinder. The control box and the main body of the delivery cabinet each have a first through hole and a second through hole. A special gas control element within the control box is electrically connected to the solenoid valve via wires passing sequentially through the first and second through holes. The control box includes a selectable inert gas inlet, a gas outlet, and a pressure gauge for monitoring the gas pressure within the control box. The explosion-proof special gas delivery cabinet provided by this application ensures that the control box is always in a positive pressure environment protected by inert gas, preventing leaked special gas from the main body of the delivery cabinet from entering the control box, thereby ensuring the safe operation of all components within the control box and reducing safety hazards.

[0004] Existing explosion-proof special gas delivery cabinets typically use quick-connect chains (usually 22 links long) to secure gas cylinders. These chains have spring clips at both ends that wrap around the middle or shoulder of the cylinder, locking and tightening to form a ring constraint, effectively preventing the cylinder from tipping over. However, due to their fixed size, a single-size chain can only fit a single-size cylinder. When cylinder sizes differ, chains of different sizes need to be replaced. Furthermore, due to the chain's structural characteristics (a small contact area with the cylinder and inevitable gaps), while it provides a ring constraint and effectively prevents tipping, the securing effect is generally limited. This makes the cylinder prone to vibration during equipment operation (vibrations occur during gas delivery cabinet operation, such as mechanical vibrations generated by internal power components like motors and pumps). This leads to high-frequency collisions between the cylinder and the chain, generating significant noise and potentially damaging both the chain and cylinder over time, creating safety hazards. Therefore, there is an urgent need for an explosion-proof special gas delivery cabinet to solve these technical problems. Utility Model Content

[0005] This utility model discloses an explosion-proof special gas delivery cabinet, which is equipped with a gas cylinder fixing mechanism. When fixing the gas cylinder, the controller starts the drive motor, which drives the double-ended lead screw to rotate through the transmission shaft and gear transmission. This drives two sliders to move the slide blocks relative to each other along the slide groove. The gas cylinder is clamped and fixed from both sides by the V-shaped grooves of two sets of clamping seats. The V-shaped groove design can accommodate gas cylinders of various diameters without replacing the fixing parts. The rubber anti-slip pad increases the friction with the gas cylinder. Combined with the support pad in the groove of the bearing seat, it achieves all-round stable positioning of the gas cylinder, effectively preventing the gas cylinder from colliding with the fixing structure due to vibration during cabinet operation. This effectively reduces noise generation and lowers the risk of damage to the gas cylinder and fixing parts, greatly improving the safety of use. In summary, it solves the problems in the background technology.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model discloses an explosion-proof special gas delivery cabinet, which includes a cabinet body. The bottom of the cabinet body is fixedly equipped with multiple casters with braking mechanisms. The front of the cabinet body is hinged with a cabinet door, and the cabinet door is equipped with a turn-type locking mechanism.

[0008] A gas cylinder fixing mechanism includes a support base and a drive motor. The support base is fixedly installed on the inner bottom surface of the cabinet by threaded fasteners. Two horizontal sliding grooves are formed on the top of the support base. Two L-shaped sliding blocks are symmetrically slidably installed in the two sliding grooves via T-shaped sliding connectors. Two movable grooves are formed between the two sliding grooves on the top of the support base, and the two movable grooves are located on the same horizontal straight line. A through mounting groove is formed horizontally inside the support base, and the top of the mounting groove communicates with the movable grooves. A double-ended lead screw and a drive shaft are rotatably mounted on two sets of bearing seats. Two sliders are symmetrically screwed onto the outside of the double-ended lead screw. The tops of the two sliders respectively drive two movable slots and are fixedly connected to the bottom of the two slide blocks. Gears are fixedly connected to the outside of both the double-ended lead screw and the drive shaft, and the two gears mesh with each other. The drive motor is fixedly mounted in the mounting slot through a motor seat, and the output end of the drive motor is connected to the shaft end of the drive shaft. Two clamping seats are fixedly connected to the opposite side of each of the two slide blocks, and V-shaped grooves are opened on the opposite side of each of the two sets of clamping seats.

[0009] Furthermore, the inner wall of the V-groove of the clamping seat is provided with an anti-slip pad layer, which is made of rubber material.

[0010] Furthermore, the slide block has multiple triangular reinforcing support plates on the inner side of the L-shaped turning surface, and the reinforcing support plates are fixedly connected to the slide block by welding.

[0011] Furthermore, an arc-shaped groove is provided at the top center point of the support seat, the groove is located between two movable slots, and a support pad made of rubber material is fitted to the inner wall of the groove.

[0012] Furthermore, a controller is provided on one side of the cabinet, and the controller is connected to the drive motor via a wire.

[0013] Furthermore, the cabinet door is provided with a transparent glass observation port, which is made of tempered glass.

[0014] Furthermore, mounting bases are fixedly connected to both sides of the cabinet. A rotating screw is threaded through the mounting base, and a contact plate is rotatably connected to the bottom of the rotating screw via a rotating connector. A contact pad made of rubber material is glued and fixed to the bottom of the contact plate. Multiple telescopic guide rods are fixedly connected to the bottom of the mounting base in a matrix. The telescopic ends of the telescopic guide rods are fixedly connected to the top of the contact plate, and the contact plate is close to the bottom of the cabinet.

[0015] The present invention has the following advantages over the prior art:

[0016] 1. This technical solution incorporates a gas cylinder fixing mechanism. When fixing the gas cylinder, the controller starts the drive motor, which drives the double-ended lead screw to rotate via the transmission shaft and gear transmission. This, in turn, drives two sliders to move the slide blocks relative to each other along the slide groove. The V-grooves of the two sets of clamping seats clamp and fix the gas cylinder from both sides. The V-groove design can accommodate gas cylinders of various diameters without the need to replace the fixing components. The rubber anti-slip pad increases the friction with the gas cylinder, and together with the support pad in the groove of the bearing seat, it achieves omnidirectional stable positioning of the gas cylinder. This effectively prevents the gas cylinder from colliding with the fixing structure due to vibration during cabinet operation, thereby effectively reducing noise generation and lowering the risk of damage to the gas cylinder and fixing components. This greatly improves safety and practicality.

[0017] 2. This technical solution, by incorporating casters, mounting bases, rotating screws, and abutment plates, allows the cabinet to be easily moved to a designated position using the casters with braking mechanisms, ensuring high mobility. Once the cabinet is in place, the braking mechanism on the casters provides initial fixation. Then, rotating the screws pushes the abutment plate downwards until the abutment pad is firmly in contact with the ground, further securing the cabinet and providing stable support. This prevents the cabinet from shifting due to vibration during use, further enhancing the overall stability and reliability of the equipment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0021] Figure 3 This is a schematic diagram of the slide mounting structure of this utility model;

[0022] Figure 4 This is a cross-sectional three-dimensional structural diagram of the bearing seat of this utility model;

[0023] Figure 5 This is a schematic diagram of the internal cross-sectional front view of the bearing seat of this utility model.

[0024] In the diagram: 1. Cabinet body; 2. Casters; 3. Cabinet door; 4. Turn-type locking mechanism; 5. Support seat; 6. Drive motor; 7. Slide groove; 8. Sliding connector; 9. Slide block; 10. Movable groove; 11. Mounting groove; 12. Double-ended lead screw; 13. Drive shaft; 14. Slider; 15. Gear; 16. Clamping seat; 17. Reinforcing support plate; 18. Groove; 19. Controller; 20. Glass observation port; 21. Mounting seat; 22. Rotating screw; 23. Abutment plate; 24. Telescopic guide rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "surface", "side", "gap", "peripheral", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Reference Figures 1-5 An explosion-proof special gas delivery cabinet includes a cabinet body 1, with multiple casters 2 equipped with braking mechanisms fixedly installed at the bottom of the cabinet body 1, and a cabinet door 3 hinged to the front of the cabinet body 1, with a turn-type locking mechanism 4 at the cabinet door 3.

[0028] The gas cylinder fixing mechanism includes a support base 5 and a drive motor 6. The support base 5 is fixedly installed on the inner bottom surface of the cabinet 1 by threaded fasteners. Two horizontal sliding grooves 7 are opened on the top of the support base 5. Two L-shaped sliding blocks 9 are symmetrically slidably installed in the two sliding grooves 7 by T-shaped sliding connectors 8. Two movable grooves 10 are opened between the two sliding grooves 7 on the top of the support base 5, and the two movable grooves 10 are located on the same horizontal straight line. A through mounting groove 11 is opened horizontally inside the support base 5, and the top of the mounting groove 11 communicates with the movable grooves 10. The interior of the mounting groove 11 is connected by two sets of bearings. The seat is rotatably mounted with a double-ended lead screw 12 and a drive shaft 13. Two sliders 14 are symmetrically screwed to the outside of the double-ended lead screw 12. The tops of the two sliders 14 respectively drive two movable slots 10 and are fixedly connected to the bottom of the two slide seats 9. Gears 15 are fixedly connected to the outside of both the double-ended lead screw 12 and the drive shaft 13, and the two gears 15 mesh with each other. The drive motor 6 is fixedly mounted in the mounting slot 11 through the motor seat, and the output end of the drive motor 6 is connected to the shaft end of the drive shaft 13. Two clamping seats 16 are fixedly connected to the opposite side of the two slide seats 9. V-shaped grooves are opened on the opposite side of the two sets of clamping seats 16.

[0029] The inner wall of the V-shaped groove of the clamping seat 16 is covered with an anti-slip pad made of rubber. The inner side of the L-shaped turning surface of the slide seat 9 is provided with multiple triangular reinforcing support plates 17, which are fixedly connected to the slide seat 9 by welding. The top center point of the bearing seat 5 is provided with an arc-shaped groove 18, which is located between two movable grooves 10. The inner wall of the groove 18 is fitted with a support pad made of rubber. A controller 19 is provided on one side of the cabinet 1, which is connected to the drive motor 6 through a wire. A transparent glass observation port 20 is provided at the cabinet door 3, which is made of tempered glass.

[0030] Both sides of the cabinet 1 are fixedly connected to mounting bases 21. A rotating screw 22 is threaded through the mounting base 21. The bottom end of the rotating screw 22 is rotatably connected to an abutment plate 23 through a rotating connector. The bottom of the abutment plate 23 is glued and fixed with an abutment pad made of rubber material. Multiple telescopic guide rods 24 are fixedly connected in a matrix at the bottom of the mounting base 21. The telescopic ends of the telescopic guide rods 24 are fixedly connected to the top of the abutment plate 23. The abutment plate 23 is close to the bottom of the cabinet 1.

[0031] In the specific implementation process, when the explosion-proof special gas delivery cabinet needs to be used, first push the cabinet 1, and use the casters 2 with braking mechanism at the bottom to easily move the cabinet 1 to the designated position. After reaching the position, the cabinet 1 is initially fixed by the braking mechanism on the casters 2. Then rotate the rotating screw 22 on the mounting base 21. The screw pushes the abutment plate 23 to move downward until the abutment pad is tightly attached to the ground, further fixing the cabinet 1 and preventing it from shifting due to vibration during use.

[0032] Then, open cabinet door 3 and place the gas cylinder on support seat 5, so that the bottom of the gas cylinder falls into the groove 18 at the top center of support seat 5. The rubber support pad in groove 18 can increase the friction with the gas cylinder and play a role in stabilizing and supporting the gas cylinder. Next, start drive motor 6 through controller 19 on one side of cabinet body 1. The output end of motor drives transmission shaft 13 to rotate. Gear 15 on transmission shaft 13 meshes with gear 15 on double-ended lead screw 12, thereby driving double-ended lead screw 12 to rotate. When double-ended lead screw 12 rotates, the two sliders 14 symmetrically screwed on its outside will move relative to each other along the axial direction. The sliders 14 drive slide seat 9 to slide relative to each other on slide groove 7 through movable groove 10. The triangular body reinforced support plate 17 on the inner side of L-shaped turning surface of slide seat 9 can enhance the structural strength of slide seat 9 and make it more stable when driving clamping seat 16 to move.

[0033] When the slide 9 moves, it brings the clamping seat 16 closer to the gas cylinder. The V-shaped grooves on opposite sides of the two sets of clamping seats 16 clamp and fix the gas cylinder from both sides. The V-shaped groove design can accommodate gas cylinders of various diameters without the need to replace the fixing parts. At the same time, the rubber anti-slip pad layer on the inner wall of the V-shaped groove increases the friction with the gas cylinder. Combined with the support pad layer in the groove 18 of the bearing seat 5, it achieves all-round stable positioning of the gas cylinder. In this way, when the cabinet 1 is working, it effectively avoids the gas cylinder from colliding with the fixing structure due to vibration, reduces noise generation, reduces the risk of damage to the gas cylinder and fixing parts, and greatly improves the safety of use.

[0034] After the gas cylinder is secured, the cabinet door 3 can be closed by the turn-type locking mechanism 4 at the cabinet door 3; during use, the condition of the gas cylinder inside the cabinet 1 can be observed at any time through the transparent tempered glass observation port 20 at the cabinet door 3. The tempered glass has high strength and explosion-proof performance, which is both convenient for observation and ensures safety.

[0035] The inner wall of the V-shaped groove of the clamping seat 16 is covered with an anti-slip pad, which can increase the friction with the gas cylinder, better fix the gas cylinder, prevent the gas cylinder from sliding during the clamping process, and further improve the stability of the fixation.

[0036] Among them, multiple triangular reinforcing support plates 17 are provided on the inner side of the L-shaped turning surface of the slide block 9, which can enhance the structural strength of the slide block 9, making it more stable and reliable during movement, ensuring that the clamping seat 16 can accurately clamp the gas cylinder, and avoiding the deformation of the slide block 9 from affecting the fixing effect.

[0037] Among them, the top center of the support seat 5 has an arc-shaped groove 18 and a support pad layer. On the one hand, it can position the gas cylinder and make the gas cylinder more accurately placed; on the other hand, the rubber support pad layer can increase the friction with the gas cylinder, buffer the vibration of the gas cylinder, and work with the clamping seat 16 to achieve all-round stable positioning of the gas cylinder and reduce the shaking of the gas cylinder in the cabinet 1.

[0038] Among them, a controller 19 is set on one side of the cabinet 1 to connect to the drive motor 6, so that the operator can control the start, stop and forward and reverse rotation of the drive motor 6 through the controller 19, thereby realizing convenient operation of fixing and loosening the gas cylinder and improving work efficiency.

[0039] Among them, the cabinet door is equipped with transparent glass observation ports 20 at 3 locations, and is made of tempered glass. This not only allows operators to observe the status of the gas cylinders inside the cabinet at any time, such as whether there is a gas leak or whether the gas cylinders are stable, but also the tempered glass has high strength and explosion-proof performance, which can effectively prevent the observation ports from breaking due to accidental situations and ensure the safety of operators.

[0040] The four clamping seats 16 are designed to be staggered vertically to avoid collisions between the four clamping seats 16, which would prevent them from properly clamping smaller diameter gas cylinders.

[0041] Among them, the telescopic guide rod 24 is a two-stage chrome-plated telescopic guide rod, with the fixed end welded to the bottom of the mounting base 21 and the telescopic end welded to the top of the abutment plate 23;

[0042] Among them, cabinet 1 is made of Q235B steel plate welded together, with a steel plate thickness of 5-8mm, and the inner wall is sprayed with a 2mm thick polytetrafluoroethylene anti-corrosion layer, which not only ensures explosion resistance but also prevents toxic gases from corroding the cabinet.

[0043] Among them, the mating surface between the cabinet door 3 and the cabinet body 1 is provided with an oil-resistant rubber sealing ring, the purpose of which is to ensure that the cabinet door 3 and the cabinet body 1 are sealed after the cabinet door is closed, effectively preventing gas leakage.

[0044] The parameters of the drive motor 6 are as follows: it adopts a DC geared motor (model 5IK120RGN-CF), with a rated power of 120W, a rated speed of 1500rpm, a reduction ratio of 1:50, and an output shaft speed of 30rpm, to ensure that the clamping seat 16 moves smoothly (5mm / s) and avoids collision of gas cylinders due to excessive movement.

[0045] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An explosion-proof special gas conveying cabinet, comprising a cabinet body (1), characterized in that: The bottom of the cabinet (1) is fixedly equipped with multiple casters (2) with brake mechanisms. The front of the cabinet (1) is hinged with a cabinet door (3), and the cabinet door (3) is equipped with a turn-type locking mechanism (4). The gas cylinder fixing mechanism includes a support base (5) and a drive motor (6). The support base (5) is fixedly installed on the inner bottom surface of the cabinet (1) by threaded fasteners. The top of the support base (5) has two horizontal sliding grooves (7). Two L-shaped sliding blocks (9) are symmetrically slidably installed at the two sliding grooves (7) by T-shaped sliding connectors (8). The top of the support base (5) has two movable grooves (10) between the two sliding grooves (7), and the two movable grooves (10) are located on the same horizontal straight line. The interior of the support base (5) has a through mounting groove (11), and the top of the mounting groove (11) is connected to the movable groove (10). The interior of the mounting groove (11) is connected by two sets of A double-ended lead screw (12) and a drive shaft (13) are rotatably mounted on the bearing housing. Two sliders (14) are symmetrically screwed on the outside of the double-ended lead screw (12). The tops of the two sliders (14) respectively drive two movable slots (10) and are fixedly connected to the bottom of the two slides (9). Gears (15) are fixedly connected to the outside of both the double-ended lead screw (12) and the drive shaft (13), and the two gears (15) mesh with each other. The drive motor (6) is fixedly mounted in the mounting slot (11) through the motor seat, and the output end of the drive motor (6) is connected to the shaft end of the drive shaft (13). Two clamping seats (16) are fixedly connected to the opposite side of the two slides (9), and V-shaped grooves are opened on the opposite side of the two sets of clamping seats (16).

2. The explosion-proof special gas conveying cabinet according to claim 1, characterized in that: The inner wall of the V-groove of the clamping seat (16) is provided with an anti-slip pad, which is made of rubber material.

3. The explosion-proof special gas conveying cabinet according to claim 1, characterized in that: The slide (9) has multiple triangular reinforcing support plates (17) on the inner side of the L-shaped turning surface. The reinforcing support plates (17) are fixedly connected to the slide (9) by welding.

4. The explosion-proof special gas conveying cabinet according to claim 1, characterized in that: The top center point of the bearing seat (5) is provided with an arc-shaped groove (18), the groove (18) is located between two movable grooves (10), and the inner wall of the groove (18) is fitted with a support pad made of rubber material.

5. The explosion-proof special gas conveying cabinet according to claim 1, characterized in that: A controller (19) is provided on one side of the cabinet (1), and the controller (19) is connected to the drive motor (6) via a wire.

6. The explosion-proof special gas conveying cabinet according to claim 1, characterized in that: The cabinet door (3) is provided with a transparent glass observation port (20), which is made of tempered glass.

7. The explosion-proof special gas conveying cabinet according to claim 1, characterized in that: Both sides of the cabinet (1) are fixedly connected to mounting bases (21). A rotating screw (22) is threaded through the mounting base (21). The bottom end of the rotating screw (22) is rotatably connected to an abutment plate (23) through a rotating connector. The bottom of the abutment plate (23) is bonded and fixed with an abutment pad made of rubber material. Multiple telescopic guide rods (24) are fixedly connected in a matrix at the bottom of the mounting base (21). The telescopic ends of the telescopic guide rods (24) are fixedly connected to the top of the abutment plate (23). The abutment plate (23) is close to the bottom of the cabinet (1).

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