A trolley for transporting air breathing apparatus cylinders

Abstract

The utility model relates to the technical field of fire fighting equipment, concretely to a dolly for conveying air breathing apparatus gas cylinder, including the frame of front installation has the push handle and the bottom surface installation has the universal wheel, the inside installation of frame has the anti -sway support of placing several air breathing apparatus gas cylinders, in the position of corresponding each gas cylinder of rectangular anti -sway support top and bottom, the top of frame is opposite and is installed with stabilizing device and storage cover, and stabilizing device includes the guide frame of fixed connection on the frame, the side of guide frame sets up several with the slide slot of positioning sleeve sliding connection, and positioning sleeve passes through slide slot to front end and is inserted with storage cover with positioning sleeve bottom surface and rests in the top of air breathing apparatus gas cylinder, and the push spring is connected between positioning sleeve and guide frame. The utility model effectively stabilizes air breathing apparatus gas cylinder, avoids the problem that appears damaged in the inside up and down sliding of anti -sway support.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment technology, and in particular to a trolley for transporting air cylinders for breathing apparatus. Background Technology

[0002] Air cylinders for breathing apparatus are mainly used to store high-pressure compressed air. They are made of fully wound carbon fiber composite material, which has the characteristics of being lightweight, corrosion-resistant, high-strength, safe, and having a long service life.

[0003] Self-contained breathing apparatus (SCBA) cylinders are widely used by firefighters and rescue workers in disaster relief and rescue operations. When it is necessary to move or load and unload SCBA cylinders during firefighting or disaster relief, operators put 12 SCBA cylinders into a trolley for transport in various complex terrains and harsh environments. However, existing tools may experience bumps and jolting due to road conditions during movement, causing the SCBA cylinders to slide up and down inside the anti-sway bracket, resulting in damage to the SCBA cylinders. Utility Model Content

[0004] The purpose of this utility model is to solve the problem of damage to air cylinders in existing technologies, and to propose a trolley for transporting air cylinders for air respirators.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a trolley for transporting air respirator cylinders, comprising a frame with a push handle installed at the front and casters installed on the bottom. Inside the frame is an anti-sway bracket for holding several air respirator cylinders. At the top and bottom of the rectangular anti-sway bracket, corresponding to the position of each cylinder, are circular placement openings with an inner diameter 10-15 mm larger than the cylinder diameter. A stabilizing device and a storage sleeve are installed opposite each other on the top of the frame. The stabilizing device includes a guide frame fixedly connected to the frame. Several sliding grooves are opened on one side of the guide frame, which are slidably connected to the positioning sleeves. The positioning sleeves pass through the sliding grooves to the front end, where they are inserted into the storage sleeves, with the bottom surface of the positioning sleeves abutting against the top of the air respirator cylinders. A push spring connects the positioning sleeves and the guide frame.

[0006] Preferably, the limiting block at the front end of the positioning sleeve is adapted to the slot on the guide frame.

[0007] Preferably, a limiting device is provided on one side of the guide frame. The limiting device includes an adjusting rod, with an adjusting frame and a sliding main sleeve fixedly connected to the top and bottom ends of the adjusting rod, respectively. The adjusting rod is slidably connected inside the positioning sleeve, the adjusting frame is located on the upper surface of the positioning sleeve, and the sliding main sleeve is placed on the surface of the guide frame.

[0008] Preferably, a fixing block is provided inside the sliding main sleeve, and the fixing block is placed on the surface of the guide frame.

[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0010] In this invention, by setting a stabilizing device, when firefighters need to stabilize the air respirator cylinder during transportation, the casters are adjusted to limit the movement, pushing the positioning sleeve. The positioning sleeve is guided by the groove on the surface of the guide frame, and slides onto the air nozzle of the air respirator cylinder. The lower surface of the positioning sleeve abuts against the top of the air respirator cylinder. The positioning sleeve is inserted into the storage sleeve, and the limiting device is adjusted to restrict the positioning sleeve. By setting a stabilizing device, the air respirator cylinder can be effectively stabilized, preventing it from sliding up and down inside the anti-sway bracket, thereby reducing the risk of damage to the air respirator cylinder.

[0011] In this utility model, by setting a limiting device, when firefighters need to limit the positioning sleeve, they push the adjusting frame, the adjusting frame pushes the adjusting rod, the adjusting rod slides inside the positioning sleeve, the adjusting rod pushes the sliding main sleeve, and the sliding main sleeve is fitted onto the fixed block. By setting a limiting device, it is possible to effectively limit the positioning sleeve for firefighters, and avoid the positioning sleeve from sliding when firefighters push the tool to move, thereby assisting in stabilizing the device to protect the air cylinder of the breathing apparatus. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of the stabilizing device structure in this utility model;

[0014] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0015] Figure 4 This is a side view perspective three-dimensional structural diagram of the present invention;

[0016] Figure 5 for Figure 4 Enlarged structural diagram at point B;

[0017] Figure 1-5 The components are described below:

[0018] 1. Anti-sway bracket; 2. Frame; 3. Stabilizing device; 31. Limiting block; 32. Storage sleeve; 33. Positioning sleeve; 34. Guide frame; 35. Push spring; 36. Slide groove; 37. Slot; 4. Limiting device; 41. Fixing block; 42. Sliding main sleeve; 43. Adjusting rod; 44. Adjusting frame; 5. Push handle. Detailed Implementation

[0019] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0020] See Figures 1-5 This utility model provides a trolley for transporting air cylinders for breathing apparatus, including a frame 2 with a push handle 5 at the front and casters on the bottom. The frame is made of high-strength stainless steel square tubing and is constructed by welding. The stainless steel square tubing has high strength and hardness, capable of withstanding the weight of twelve 9-liter air cylinders, ensuring the stability of the trolley. The frame is rectangular in shape, and the dimensions of the 9-liter air cylinders are approximately 230 mm in diameter and 680 mm in height.

[0021] The frame 2 is equipped with an anti-sway bracket 1 for placing several air respirator cylinders. At the top and bottom of the rectangular anti-sway bracket 1, corresponding to the position of each cylinder, there are circular placement openings with an inner diameter 10-15 mm larger than the cylinder diameter. The placement openings are made of stainless steel. The circular placement opening at the top is used to restrict the cylinder from moving upward, and the circular placement opening at the bottom cooperates with the groove at the bottom of the frame to stabilize and accurately position the cylinders, thereby effectively preventing the cylinders from shaking, shifting or tipping over during transportation.

[0022] The anti-sway bracket houses the gas cylinders, designed with a tight 3x4 arrangement. It measures 230 x 4 = 920 mm in length and 230 x 3 = 690 mm in width, with a height slightly higher than the cylinders, set at approximately 700 mm for easy placement and handling. Stainless steel strips are welded between the four uprights or upper and lower side posts of the metal frame, their height roughly equivalent to the cylinder's height. These strips prevent horizontal movement of the cylinders, further enhancing the fixation and ensuring safety during transport.

[0023] A foldable stainless steel push handle is installed on one side of the cart. The handle's height is designed between 1000-1200 mm, a height range that conforms to ergonomic principles, allowing the operator to maintain a comfortable posture while pushing the cart and reducing labor intensity. When not in use, the push handle can be folded up to reduce the space occupied by the cart, facilitating storage and transportation. The cart is equipped with four heavy-duty casters, each with a load-bearing capacity of no less than 100 kg, ensuring stable pushing of the cart when carrying 12 9-liter gas cylinders. Two of the casters are equipped with brakes, allowing for easy securing of the cart when needed to prevent slippage and increase safety and convenience during use. The casters have a diameter of approximately 200 mm, a size that adapts well to different ground conditions, such as flat or slightly rough surfaces.

[0024] A stabilizing device 3 and a storage sleeve 32 are installed opposite each other on the top of the frame 2. The stabilizing device 3 includes a guide frame 34 fixedly connected to the frame 2. Several sliding grooves 36 are opened on one side of the guide frame 34, which are slidably connected to the positioning sleeve 33. The positioning sleeve 33 passes through the sliding grooves 36 to the front end and is inserted into the storage sleeve 32, with the bottom surface of the positioning sleeve abutting the top of the air cylinder of the air respirator. A push spring 35 is connected between the positioning sleeve 33 and the guide frame 34. The push spring 35 is located on one side of the sliding groove 36, and its function is to prevent the positioning sleeve 33 from sliding.

[0025] In this embodiment, a limiting device 4 is provided on one side of the guide frame 34. The limiting device 4 includes an adjusting rod 43, which is slidably connected inside the positioning sleeve 33. In this embodiment, an adjusting frame 44 is fixedly connected to the top end of the adjusting rod 43 and is placed on the surface of the positioning sleeve 33. Operating the adjusting frame 44 can adjust the sliding of the adjusting rod 43. A sliding main sleeve 42 is fixedly connected to the bottom end of the adjusting rod 43 and is placed on the surface of the guide frame 34. The sliding of the sliding main sleeve 42 is controlled by the adjusting rod 43.

[0026] In this embodiment, a fixing block 41 is fixedly connected to the surface of the guide frame 34, and a sliding main sleeve 42 is fitted onto the surface of the fixing block 41. The fixing block 41 and the sliding main sleeve 42 restrict the sliding of the positioning sleeve 33.

[0027] Operating procedure: Use the two casters equipped with brakes to stop the trolley. Insert the air respirator cylinder into the anti-sway bracket and adjust and fix it in place. Push the positioning sleeve 33 along the slide groove 36 of the guide frame 34 to the front end and insert it into the storage sleeve 32. At this time, the positioning sleeve 33 abuts against the top of the air respirator cylinder, which can effectively prevent the air respirator cylinder from sliding up and down inside the anti-sway bracket 1 and ensure that the air respirator cylinder will not be damaged during transportation.

[0028] The limiting device 4 assists the stabilizing device 3 in limiting its position to prevent the positioning sleeve 33 from slipping, thereby protecting the air cylinder of the breathing apparatus from damage. When the limiting device 4 limits the positioning sleeve 33, the adjusting frame 44 is pushed, causing the adjusting rod 43 to slide inside the positioning sleeve 33. At the same time, the adjusting rod 43 pushes the sliding main sleeve 42 and the fixing block 41.

[0029] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A trolley for transporting air cylinders for breathing apparatus, comprising a frame (2) with a push handle (5) mounted on the front and casters mounted on the bottom, characterized in that: The frame (2) is equipped with an anti-sway bracket (1) for placing several air respirator cylinders. At the top and bottom of the rectangular anti-sway bracket (1), corresponding to the position of each cylinder, there is a circular placement opening with an inner diameter 10-15 mm larger than the cylinder diameter. A stabilizing device (3) and a storage sleeve (32) are installed at opposite positions on the top of the frame (2). The stabilizing device (3) includes a guide frame (34) fixedly connected to the frame (2). Several sliding grooves (36) are opened on one side of the guide frame (34) and are slidably connected to the positioning sleeve (33). The positioning sleeve (33) passes through the sliding groove (36) to the front end and is inserted into the storage sleeve (32), and the bottom surface of the positioning sleeve abuts against the top of the air respirator cylinder. A push spring (35) is connected between the positioning sleeve (33) and the guide frame (34). A limiting device (4) is provided on one side of the guide frame (34). The limiting device (4) includes an adjusting rod (43). The top and bottom ends of the adjusting rod (43) are respectively fixedly connected to the adjusting frame (44) and the sliding main sleeve (42). The adjusting rod (43) is slidably connected inside the positioning sleeve (33). The adjusting frame (44) is located on the upper surface of the positioning sleeve (33). The sliding main sleeve (42) is placed on the surface of the guide frame (34).

2. The trolley for transporting air cylinders for breathing apparatus according to claim 1, characterized in that: The limiting block (31) at the front end of the positioning sleeve (33) is adapted to the slot (37) on the guide frame (34).

3. The trolley for transporting air cylinders for breathing apparatus according to claim 1, characterized in that: A fixing block (41) is provided inside the sliding main sleeve (42), and the fixing block (41) is placed on the surface of the guide frame (34).

4. The trolley for transporting air cylinders for breathing apparatus according to claim 1, characterized in that: The anti-sway bracket (1) has a gas cylinder placement area inside, designed as a tightly arranged 3 rows and 4 columns, with a length of 230×4=920 mm and a width of 230×3=690 mm.

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