Protective device for oxygen generator
The opening and closing of the protective plate is automatically controlled by a synchronous pulley and threaded rod transmission system driven by a motor, which solves the problem of cumbersome operation of existing oxygen generator protective devices and realizes automated protection and stable placement of the oxygen generator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YIHUA MEDICAL EQUIPMENT CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-17
AI Technical Summary
The existing oxygen concentrator protection devices are cumbersome to operate, and the protective plates need to be opened and closed manually, which is inconvenient to use.
The system employs a synchronous pulley and threaded rod driven by a motor to automatically control the opening and closing of the protective plate, and uses a limit mechanism to ensure stable placement of the oxygen generator.
It achieves automated protection for oxygen concentrators, simplifies operation procedures, and improves ease of use and stability.
Smart Images

Figure CN224126927U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of protective device technology, specifically a protective device for an oxygen generator. Background Technology
[0002] Oxygen concentrators primarily produce oxygen using the principle of pressure swing adsorption (PSA). After being filtered, air is compressed by a compressor and enters a molecular sieve bed. The molecular sieve adsorbs nitrogen and other gases, thus separating out oxygen with higher purity. To protect the oxygen concentrator, the oxygen is then sent to a protective device.
[0003] For example, CN110217468A discloses a protective device for an oxygen concentrator. The device includes a housing to protect the oxygen concentrator. A motor drives a lifting plate to slide up and down along a sliding track, enabling the oxygen concentrator to move up and down. When the oxygen concentrator is not in use, it can be retracted into the mounting slot to prevent dust accumulation and collisions, and to facilitate carrying and transporting the oxygen concentrator. Vibration damping springs are used to reduce the noise of the oxygen concentrator during operation.
[0004] This patent requires the oxygen concentrator to be placed into a protective shell to protect it. When the oxygen concentrator is in use, it is moved out by a drive mechanism, and when it is not in use, it is retracted into the protective shell to protect it. However, the protective plate on the top of the protective shell needs to be opened and closed manually, which is cumbersome and inconvenient for protecting the oxygen concentrator. Utility Model Content
[0005] The purpose of this invention is to provide a protective device for oxygen generators, so as to solve the problem that existing protective devices are not convenient for protecting oxygen generators as mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a protective device for an oxygen generator, comprising: a protective shell and a protective mechanism, wherein a movable plate is slidably connected inside the protective shell.
[0007] The protective shell has a protective mechanism inside, which includes a motor installed at the bottom of the protective shell. Both ends of the movable plate are fixedly connected to protrusions. A rotating rod is slidably connected to the outside of the protrusions. A spiral groove matching the protrusions is opened on the outside of the rotating rod. A straight groove is connected to one end of the spiral groove. A protective plate is fixedly connected to the top of the rotating rod. A limit mechanism is provided inside the movable plate.
[0008] Specifically, the protrusions at both ends of the movable plate can rotate the rotating rod through the spiral groove when it moves, causing the protective plate at the top of the rotating rod to rotate and open.
[0009] Preferably, the output end of the motor is fixedly connected to a synchronous pulley a, and a synchronous belt is sleeved on the outer side of the synchronous pulley a.
[0010] Preferably, a timing pulley b is sleeved on one side of the timing belt, and a threaded rod body is fixedly connected to the top of both the timing pulley b and the timing pulley a.
[0011] Specifically, synchronous wheel b and synchronous wheel a can drive the two sets of threaded rod bodies to rotate synchronously, thereby driving the moving plate to move.
[0012] Preferably, the outer side of the threaded rod body is threadedly connected to the movable plate, and the bottom of the rotating rod is movably connected to the protective shell through a bearing.
[0013] Preferably, the bottom of the threaded rod body is movably connected to the protective shell via a bearing, and one side of the protective plate is wedge-shaped.
[0014] Specifically, the wedge-shaped surfaces of the two sets of protective plates can fit together.
[0015] Preferably, the limiting mechanism includes a handle that is movably connected to the top of the movable plate via a bearing, and a bevel gear a is fixedly connected to the bottom of the handle.
[0016] Preferably, a bevel gear a is meshed with a bevel gear b on its outer side, and a bidirectional threaded rod is fixedly connected to one side of the bevel gear b. Both ends of the bidirectional threaded rod are threaded with limit plates.
[0017] Specifically, when bevel gear a and bevel gear b mesh, they can drive the bidirectional threaded rod on one side to perform threaded transmission with the two sets of limiting plates, thereby limiting the oxygen generator.
[0018] Preferably, the outer side of the limiting plate is slidably connected to the moving plate, and the end of the bidirectional threaded rod is movably connected to the protective shell through a bearing.
[0019] Compared with existing technologies, the beneficial effects of this protective device for oxygen generators are:
[0020] 1. This protective device for an oxygen concentrator, when the oxygen concentrator needs to be used, starts the motor, which drives synchronous pulley a to rotate. Synchronous pulley a then drives synchronous pulley b to rotate via a synchronous belt, causing the two sets of threaded rod bodies to engage in threaded transmission with the moving plate, thereby moving the moving plate upwards. The moving plate then moves the oxygen concentrator upwards. Simultaneously, the protrusions at both ends of the moving plate slide in the spiral grooves on the outside of the rotating rod, thereby actuating the rotating rod. When the protrusions move into the straight groove, the rotating rod rotates 180°, causing the top protective plate to detach from the top of the protective shell. At this time, the oxygen concentrator can be moved out of the protective shell without obstruction. Through the above operation, the protective device can better protect the oxygen concentrator.
[0021] 2. This protective device for an oxygen concentrator, in order to ensure the stable placement of the oxygen concentrator within the protective casing, involves rotating a handle. This handle engages bevel gear a with bevel gear b, causing bevel gear b to rotate. Bevel gear b then rotates a double-threaded rod on one side, which in turn engages with two sets of limiting plates via threaded transmission. This causes the two sets of limiting plates to move closer together. When the two sets of limiting plates contact the outer wall of the oxygen concentrator, they limit the oxygen concentrator's position, ensuring its stable placement within the protective casing. This operation facilitates the stable placement of the oxygen concentrator within the protective device. Attached Figure Description
[0022] Figure 1 This is a three-dimensional cross-sectional view of the present invention;
[0023] Figure 2 This is a three-dimensional schematic diagram of the present invention;
[0024] Figure 3 This is a three-dimensional schematic diagram of the limiting mechanism of this utility model;
[0025] Figure 4 This is a three-dimensional schematic diagram of the rotating rod of this utility model;
[0026] Figure 5 This is an enlarged schematic diagram of A of this utility model.
[0027] In the diagram: 1. Protective shell; 2. Moving plate; 3. Protective mechanism; 301. Motor; 302. Synchronous pulley a; 303. Synchronous belt; 304. Synchronous pulley b; 305. Threaded rod body; 306. Protrusion; 307. Rotating rod; 308. Helical groove; 309. Straight groove; 310. Protective plate; 4. Limiting mechanism; 401. Handle; 402. Bevel gear a; 403. Bevel gear b; 404. Bidirectional threaded rod; 405. Limiting plate. Detailed Implementation
[0028] 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.
[0029] Please see Figures 1-4 This utility model provides a technical solution: a protective device for an oxygen generator, comprising: a protective shell 1 and a protective mechanism 3, wherein a movable plate 2 is slidably connected inside the protective shell 1.
[0030] The protective shell 1 has a protective mechanism 3 inside. The protective mechanism 3 includes a motor 301 installed at the bottom of the protective shell 1. Both ends of the movable plate 2 are fixedly connected to protrusions 306. A rotating rod 307 is slidably connected to the outside of the protrusions 306. A spiral groove 308 matching the protrusions 306 is opened on the outside of the rotating rod 307. A straight groove 309 is connected to one end of the spiral groove 308. A protective plate 310 is fixedly connected to the top of the rotating rod 307. A limit mechanism 4 is provided inside the movable plate 2. A synchronous pulley a is fixedly connected to the output end of the motor 301. 302, a synchronous belt 303 is sleeved on the outer side of the synchronous pulley a302; a synchronous pulley b304 is sleeved on one side of the synchronous belt 303, and a threaded rod body 305 is fixedly connected to the top of both the synchronous pulley b304 and the synchronous pulley a302; the outer side of the threaded rod body 305 is threadedly connected to the movable plate 2, and the bottom of the rotating rod 307 is movably connected to the protective shell 1 through a bearing; the bottom of the threaded rod body 305 is movably connected to the protective shell 1 through a bearing, and one side of the protective plate 310 is wedge-shaped. The threaded rod body 305 and the movable plate 2 constitute a threaded transmission structure.
[0031] In practical implementation, the protective device for the oxygen concentrator is installed inside the protective shell 1. The protective shell 1 protects the internal oxygen concentrator. When the oxygen concentrator needs to be used, the motor 301 is started. The motor 301 drives the synchronous pulley a302 to rotate. The synchronous pulley a302 drives the synchronous pulley b304 to rotate through the synchronous belt 303. This causes the two sets of threaded rod bodies 305 to engage in threaded transmission with the moving plate 2, thereby moving the moving plate 2 upward. The moving plate 2 then moves the oxygen concentrator upward. At the same time, the protrusions 306 at both ends of the moving plate 2 will rotate the rod 305. The 07 slides in the spiral groove 308 on the outside, thereby actuating the rotating rod 307 to rotate. When the protrusion 306 moves into the straight groove 309, the rotating rod 307 will rotate 180°, thereby causing the top protective plate 310 to detach from the top of the protective shell 1. At this time, the oxygen generator in the protective shell 1 can be moved out without being obstructed. When the oxygen generator is finished using, the motor 301 can be started to reverse, driving the oxygen generator back into the protective shell 1, and causing the two sets of protective plates 310 to reset, automatically obstructing the top of the protective shell 1. Through the above operation, the protective device can better protect the oxygen generator.
[0032] Please see Figure 1 , Figure 3 and Figure 5The limiting mechanism 4 includes a handle 401 that is movably connected to the top of the movable plate 2 via a bearing. A bevel gear a 402 is fixedly connected to the bottom of the handle 401. A bevel gear b 403 is meshed with the outer side of the bevel gear a 402. A bidirectional threaded rod 404 is fixedly connected to one side of the bevel gear b 403. Both ends of the bidirectional threaded rod 404 are threadedly connected to a limiting plate 405. The outer side of the limiting plate 405 is slidably connected to the movable plate 2. The end of the bidirectional threaded rod 404 is movably connected to the protective shell 1 via a bearing. The bevel gear a 402 and the bevel gear b 403 form a meshing transmission structure, and the bidirectional threaded rod 404 and the limiting plate 405 form a threaded transmission structure.
[0033] In practical implementation, the protective device for the oxygen concentrator, in order to ensure stable placement of the oxygen concentrator within the protective casing 1, involves rotating the handle 401. The handle 401 drives the bevel gear a402 to mesh with the bevel gear b403, thereby causing the bevel gear b403 to rotate. The bevel gear b403 then drives the bidirectional threaded rod 404 on one side to rotate, thus engaging with the two sets of limiting plates 405 via threaded transmission. This causes the two sets of limiting plates 405 to move closer together. When the two sets of limiting plates 405 contact the outer wall of the oxygen concentrator, they can limit the oxygen concentrator, ensuring stable placement within the protective casing 1. This operation facilitates stable placement of the oxygen concentrator within the protective device.
[0034] In summary: When using the protective device for the oxygen generator, first install the oxygen generator into the protective housing 1. The movable plate 2 can support it. When the oxygen generator needs to be used, the motor 301 can be started to move the oxygen generator out. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A guard for an oxygen generator comprising: A protective shell (1) and a protective mechanism (3), wherein a movable plate (2) is slidably connected inside the protective shell (1), characterized in that, The protective shell (1) is provided with a protective mechanism (3) inside. The protective mechanism (3) includes a motor (301) installed at the bottom of the protective shell (1). Both ends of the moving plate (2) are fixedly connected with protrusions (306). A rotating rod (307) is slidably connected to the outside of the protrusions (306). A spiral groove (308) matching the protrusions (306) is opened on the outside of the rotating rod (307). A straight groove (309) is connected to one end of the spiral groove (308). A protective plate (310) is fixedly connected to the top of the rotating rod (307). A limit mechanism (4) is provided inside the moving plate (2).
2. A guard for an oxygen generator as claimed in claim 1, wherein: The output end of the motor (301) is fixedly connected to a synchronous pulley a (302), and a synchronous belt (303) is sleeved on the outside of the synchronous pulley a (302).
3. A guard for an oxygen generator as claimed in claim 2, wherein: A synchronous pulley b (304) is sleeved on one side of the synchronous belt (303), and a threaded rod body (305) is fixedly connected to the top of both the synchronous pulley b (304) and the synchronous pulley a (302).
4. The guard according to claim 3, wherein: The outer side of the threaded rod body (305) is threadedly connected to the movable plate (2), and the bottom of the rotating rod (307) is movably connected to the protective shell (1) through a bearing.
5. A protective device for an oxygen generator according to claim 3, characterized in that: The bottom of the threaded rod body (305) is movably connected to the protective shell (1) via a bearing, and one side of the protective plate (310) is wedge-shaped.
6. The guard for an oxygen generator of claim 1, wherein: The limiting mechanism (4) includes a handle (401) that is movably connected to the top of the movable plate (2) via a bearing, and a bevel gear a (402) is fixedly connected to the bottom of the handle (401).
7. A guard for an oxygen generator as claimed in claim 6, wherein: The outer side of the bevel gear a (402) is meshed with a bevel gear b (403), and a bidirectional threaded rod (404) is fixedly connected to one side of the bevel gear b (403). Both ends of the bidirectional threaded rod (404) are threaded with limit plates (405).
8. A guard for an oxygen generator as claimed in claim 7, wherein: The outer side of the limiting plate (405) is slidably connected to the moving plate (2), and the end of the bidirectional threaded rod (404) is movably connected to the protective shell (1) through a bearing.
Citation Information
Patent Citations
Protection device used for oxygen generator
CN110217468A