Medical gas diagnostic cart
By designing a clamping and squeezing mechanism on the medical gas diagnostic cart, the problem of needing to adjust multiple brake pads in the existing technology has been solved, thereby improving the stability and operating efficiency of the cart.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANGENBAIMED TECHNOLOGY (SHANGHAI) CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-03
AI Technical Summary
Existing medical gas diagnostic carts require the adjustment of multiple brake pads to fix their position during use, which increases the number of operating steps and affects efficiency.
A medical gas diagnostic cart including a clamping mechanism and a squeezing mechanism was designed. The clamping mechanism restricts the rotation of the shaft, and the squeezing mechanism restricts the rotation of the wheel axle. Combined with the operation of the handrail and connecting plate, stable control of the shaft and wheel axle is achieved, and the braking operation is simplified.
This design achieves stability and smooth movement of the trolley, simplifies the operating procedures for medical staff, and improves efficiency.
Smart Images

Figure CN224454344U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a medical gas diagnostic cart. Background Technology
[0002] The medical gas therapy cart is designed for the safe and convenient transportation and use of medical gas therapy systems. It integrates functions such as cylinder fixing, equipment mounting and mobility, ensuring that gas cylinders such as nitric oxide (NO), oxygen (O2), and nitrogen (N2) and related main equipment can provide treatment services efficiently and stably in medical areas such as operating rooms and ICU wards.
[0003] Currently, some medical gas diagnostic carts can secure the gas cylinders in place using metal buckle straps. Other carts feature swivel casters for easy movement by medical staff. While some swivel casters are equipped with brake pads to stabilize the casters, medical staff need to adjust the brake pads on at least two casters to ensure stability. This adds extra steps to the process, and the coordination between adjusting the brake pads and pushing the cart is somewhat poor, thus affecting the overall efficiency of the gas cylinder usage. Utility Model Content
[0004] The purpose of this invention is to provide a medical gas diagnostic cart to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a medical gas diagnostic cart, comprising a cart body, a support frame bolted to the bottom of the inner wall of the cart body, and a strap body installed on the surface of the cart body, and further comprising:
[0006] Casters are installed at both ends of the support frame. The other two ends of the support frame are welded with collars. The bottom sides of the collars are welded with partitions. The inner surface of the partitions is rotatably connected to a rotating shaft. The surface of the rotating shaft is rotatably connected to a wheel axle. One end and the surface of the wheel axle are fixedly fitted with rollers.
[0007] A fixed plate is fixedly sleeved on the surface of the rotating shaft and a movable plate is slidably sleeved on the surface of the rotating shaft, and a spring is fixedly connected between the fixed plate and the movable plate;
[0008] A clamping mechanism is slidably fitted onto the surface of the rotating shaft. A squeezing mechanism for cleaning the surface of the wheel axle is installed at the bottom of the moving plate. L-shaped rods are installed on both sides of the back of the trolley body. A handrail is welded to one end of each L-shaped rod. A liftable connecting component is installed between the two extension rods.
[0009] Preferably, the extrusion mechanism includes a light rod fixedly connected to the bottom of the moving plate, an extrusion frame fixedly connected to the bottom of the light rod, the top of the inner wall of the extrusion frame contacting the surface of the wheel axle, and a plurality of cleaning rods rotatably passing through the surface of the extrusion frame, the surfaces of the cleaning rods contacting the surface of the wheel axle.
[0010] Preferably, the clamping mechanism includes a sliding plate movably connected to both sides of the rotating shaft surface. The surface of the sliding plate is in contact with the inner wall of the collar. A top plate is fixedly connected to the top of the sliding plate, and a locking block is fixedly connected to the bottom of the top plate. A locking groove for cooperating with the locking block is opened on the top of the rotating shaft. The top of the movable plate is rotatably connected to the bottom of the sliding plate.
[0011] Preferably, baffles are fixedly connected to both sides of the bottom of the slide plate, and the inner surface of the baffles is in contact with the surface of the rotating shaft.
[0012] Preferably, the connecting assembly includes a connecting plate disposed below the handrail, with vertical plates fixedly connected to both ends of the connecting plate. The vertical plates are fixedly connected to one end of the extension rod. A groove is formed on the surface of the vertical plate. A protruding rod is fixedly connected to both ends of the handrail. The surface of the protruding rod is slidably connected to the inner wall of the groove.
[0013] Preferably, a protective frame is fixedly fitted onto the surface of the fixed plate, and the surface of the movable plate is slidably connected to the inner wall of the protective frame.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This invention, through the setting of a clamping mechanism and a squeezing mechanism, can control the rotation of the rotating shaft and the wheel axle separately. Restricting the rotation of the rotating shaft can prevent the trolley from moving left and right. When the rotation of the rollers and wheel axles is restricted, the trolley can be prevented from moving forward or backward, ensuring the stability of the trolley. When it is necessary to move the trolley, medical staff can grasp the connecting plate and the handle and bring them together to release the restriction on the rotating shaft and wheel axle. This solves the problem that when medical staff adjust the brake pads of the universal caster in some medical gas diagnostic and treatment devices, it increases the operation steps for medical staff, which can affect the continuity of work and the overall efficiency of use. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective;
[0018] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention;
[0019] Figure 4 This is a three-dimensional structural diagram of the present invention with the collar cut open;
[0020] Figure 5 This is a three-dimensional structural diagram of the protective frame cut open according to this utility model;
[0021] Figure 6 This is a three-dimensional structural diagram of the present invention with the skateboard, top plate, and locking block removed;
[0022] Figure 7 This is a three-dimensional structural diagram of the trolley body cut open according to the present invention.
[0023] In the diagram: 1. Cart body; 2. Support frame; 3. Casters; 4. Ring; 5. Partition; 6. Axle; 7. Wheel axle; 8. Roller; 9. Fixed plate; 10. Moving plate; 11. Spring; 12. Pressing mechanism; 121. Smooth rod; 122. Pressing frame; 123. Cleaning rod; 13. Protective frame; 14. Clamping mechanism; 141. Slide plate; 142. Top plate; 143. Clamping block; 144. Baffle; 145. Slot; 15. Extension rod; 16. Connecting assembly; 161. Connecting plate; 162. Vertical plate; 163. Groove; 17. L-shaped rod; 18. Handrail; 19. Protruding rod; 20. Limiting plate; 21. Strap body. Detailed Implementation
[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-7As shown, a medical gas diagnostic cart includes a cart body 1, a support frame 2 bolted to the bottom of the inner wall of the cart body 1, and a strap body 21 installed on the surface of the cart body 1. The strap body 21 is used to secure and limit the movement of various gas cylinders. Casters 3 are installed at both ends of the support frame 2, and collars 4 are welded to the other two ends of the support frame 2. Partitions 5 are welded to both sides of the bottom of the collars 4. A rotating shaft 6 is rotatably connected to the inner surface of the partition 5. A wheel axle 7 rotatably passes through the surface of the rotating shaft 6. A roller 8 is fixedly fitted on one end and the surface of the wheel axle 7. The roller 8 cooperates with the casters 3 to assist the movement of the cart body 1. A fixed plate 9 is fixedly fitted on the surface of the rotating shaft 6, and a sliding plate 10 is slidably fitted on it. A compression mechanism 12 is installed at the bottom of the sliding plate 10. A spring 11 is fixedly connected between the fixed plate 9 and the sliding plate 10. The spring 11 is fitted on the surface of the rotating shaft 6. The compression mechanism 12 includes components fixedly connected to the bottom of the sliding plate 10. The light rod 121 has a pressing frame 122 fixedly connected to its bottom. The top of the inner wall of the pressing frame 122 is in contact with the surface of the wheel axle 7. When the moving plate 10 drives the pressing frame 122 to descend via the light rod 121, the pressing frame 122 can press the wheel axle 7, increasing the stability of the wheel axle 7 and preventing the wheel axle 7 from moving arbitrarily. Several cleaning rods 123 rotate through the surface of the pressing frame 122. The surface of the cleaning rods 123 is in contact with the surface of the wheel axle 7. When the wheel axle 7 rotates, the cleaning rods 123 contact it and can rotate the wheel axle 7, preventing debris from adhering to the surface of the wheel axle 7. A protective frame 13 is fixedly fitted on the surface of the fixed plate 9. The surface of the moving plate 10 is slidably connected to the inner wall of the protective frame 13. The moving plate 10 moves up and down inside the protective frame 13. It is difficult for external debris to enter the interior of the protective frame 13 and affect the use of the spring 11. This ensures the lifting distance of the moving plate 10.
[0026] The bottom of the partition 5 contacts the top of the movable plate 10, and the partition 5 can limit the lifting height of the movable plate 10. A clamping mechanism 14 is slidably sleeved on the surface of the rotating shaft 6. The clamping mechanism 14 includes a sliding plate 141 movably connected to both sides of the surface of the rotating shaft 6. The surface of the sliding plate 141 is in contact with the inner wall of the collar 4. A top plate 142 is fixedly connected to the top of the sliding plate 141, and a locking block 143 is fixedly connected to the bottom of the top plate 142. A slot 145 is opened on the top of the rotating shaft 6 to cooperate with the locking block 143. When the top plate 142 is subjected to force, it drives the locking block 143 to descend. Inserting the card into the slot 145 restricts the rotation of the shaft 6. Both sides of the bottom of the slide plate 141 are fixedly connected to baffles 144. The inner surface of the baffles 144 contacts the surface of the shaft 6. The baffles 144 protect the slot 145 and prevent external impurities from entering the slot 145. An extension rod 15 is fixedly connected to the top of the slide plate 141. Limiting plates 20 are welded to the upper and lower sides of the back of the trolley body 1. The extension rod 15 slides through the limiting plate 20. The limiting plate 20 guides the movement of the extension rod 15 and prevents the extension rod 15 from tilting.
[0027] The top of the movable plate 10 is rotatably connected to the bottom of the slide plate 141. When the movable plate 10 descends under the force of the spring 11, the slide plate 141 can drive the locking block 143 to descend accordingly. In addition, the gravity of the locking mechanism 14 can help limit the descent of the movable plate 10. L-shaped rods 17 are installed on both sides of the back of the trolley body 1. A handrail 18 is welded to one end of the L-shaped rod 17. A liftable connecting component 16 is installed between the two extension rods 15. Medical staff can lift the connecting component 16 upward to lift the extension rods 15, thereby releasing the contact between the locking block 143 and the slot 145. The connecting component 16 includes a part located under the handrail 18. A square connecting plate 161 is provided, with vertical plates 162 fixedly connected to both ends of the connecting plate 161. The vertical plates 162 are fixedly connected to one end of the extension rod 15. The surfaces of the two vertical plates 162 are slidably connected to both ends of the handrail 18. The surface of the vertical plates 162 is provided with grooves 163. Both ends of the handrail 18 are fixedly connected with protruding rods 19. The surface of the protruding rods 19 is slidably connected to the inner wall of the grooves 163. The cooperation between the grooves 163 and the protruding rods 19 can further guide the lifting and lowering of the connecting plate 161. The surfaces of the connecting plate 161 and the handrail 18 are both arc-shaped, which can reduce the risk of pinching hands when the grooves 163 and the handrail 18 are in contact.
[0028] It should be noted that the shape of the locking block 143 can be the shape of a spline shaft so that when the locking block 143 descends, it can be better inserted into the slot 145. The shape of the slot 145 is adjusted according to the shape of the locking block 143.
[0029] Working principle: Medical staff place various required medical gas cylinders inside the trolley body 1 and use the strap body 21 to tie the gas cylinders to ensure the stability of the gas cylinders placed on the trolley body 1. When medical staff hold the handle 18, they can use their thumbs to pull the connecting plate 161 upward. When medical staff hold the connecting plate 161 and the handle 18 at the same time, the upward-lifting connecting plate 161 drives the extension rod 15 to rise through the vertical plate 162. The extension rod 15 drives the top plate 142 to rise, and the locking block 143 moves out of the locking slot 145. The limit on the rotating shaft 6 is released and it can rotate normally. When the top plate 142 is lifted, the moving plate 10 is forced to move upward and drives the smooth rod 121 to rise. The compression frame 122 releases the compression on the wheel axle 7, and the wheel axle 7 and roller 8 can rotate normally. When medical staff push the trolley body 1, the casters 3 and roller 8 work together to increase the smoothness of the trolley when moving.
[0030] When medical staff release the connecting plate 161, under the action of gravity and the elastic force of the spring 11, the locking block 143 cooperates with the locking groove 145 and the squeezing frame 122 cooperates with the wheel axle 7, so that the rotation of the rotating shaft 6 and the wheel axle 7 can be controlled to ensure the stability of the roller 8, thereby preventing the trolley from moving randomly.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A medical gas diagnostic cart, comprising a cart body (1), a support frame (2) bolted to the bottom of the inner wall of the cart body (1), and a strap body (21) mounted on the surface of the cart body (1), characterized in that, Also includes: Casters (3) are installed at both ends of the support frame (2). The other two ends of the support frame (2) are welded with collars (4). The bottom sides of the collars (4) are welded with partitions (5). The inner surface of the partitions (5) is rotatably connected to a rotating shaft (6). The surface of the rotating shaft (6) is rotatably connected to a wheel axle (7). One end and the surface of the wheel axle (7) are fixedly fitted with rollers (8). A fixed plate (9) is fixedly sleeved on the surface of the rotating shaft (6) and a movable plate (10) is slidably sleeved on the surface of the rotating shaft (6). A spring (11) is fixedly connected between the fixed plate (9) and the movable plate (10). A clamping mechanism (14) is slidably sleeved on the surface of the rotating shaft (6). A squeezing mechanism (12) for cleaning the surface of the wheel axle (7) is installed at the bottom of the moving plate (10). L-shaped rods (17) are installed on both sides of the back of the trolley body (1). A handrail (18) is welded to one end of the L-shaped rod (17). A liftable connecting component (16) is installed between the two extension rods (15).
2. The medical gas cart of claim 1, wherein: The extrusion mechanism (12) includes a light rod (121) fixedly connected to the bottom of the moving plate (10). An extrusion frame (122) is fixedly connected to the bottom of the light rod (121). The top of the inner wall of the extrusion frame (122) is in contact with the surface of the wheel axle (7). Several cleaning rods (123) rotatably pass through the surface of the extrusion frame (122). The surface of the cleaning rods (123) is in contact with the surface of the wheel axle (7).
3. The medical gas cart of claim 1, wherein: The clamping mechanism (14) includes a sliding plate (141) movably connected to both sides of the surface of the rotating shaft (6). The surface of the sliding plate (141) is in contact with the inner wall of the collar (4). A top plate (142) is fixedly connected to the top of the sliding plate (141). A locking block (143) is fixedly connected to the bottom of the top plate (142). A slot (145) for cooperating with the locking block (143) is opened on the top of the rotating shaft (6). The top of the moving plate (10) is rotatably connected to the bottom of the sliding plate (141).
4. The medical gas cart of claim 3, wherein: Both sides of the bottom of the slide plate (141) are fixedly connected to baffles (144), and the inner surface of the baffles (144) is in contact with the surface of the rotating shaft (6).
5. The medical gas cart of claim 1, wherein: The connecting assembly (16) includes a connecting plate (161) disposed below the handrail (18). Both ends of the connecting plate (161) are fixedly connected to vertical plates (162). The vertical plates (162) are fixedly connected to one end of the extension rod (15). The surface of the vertical plates (162) is provided with a groove (163). Both ends of the handrail (18) are fixedly connected to protruding rods (19). The surface of the protruding rods (19) is slidably connected to the inner wall of the groove (163).
6. The medical gas cart of claim 1, wherein: The surface of the fixed plate (9) is fixedly fitted with a protective frame (13), and the surface of the movable plate (10) is slidably connected to the inner wall of the protective frame (13).