Oxygen concentration sensor fixing structure for oxygen generator

Abstract

This utility model discloses a fixing structure for an oxygen concentration sensor used in an oxygen concentrator, relating to the field of oxygen concentrator technology. It includes a sensor body, with a first spiral column spirally connected inside the air inlet pipe. A movable mechanism is provided inside the air inlet pipe. This movable mechanism allows the sensor to be connected to a flexible hose when used inside the oxygen concentrator. When the sensor is not in use externally, the air inlet pipe is automatically sealed, eliminating the need for manual operation and providing great convenience. Sealing effectively prevents dust from entering the sensor through the air inlet pipe, providing excellent protection and preventing dust from affecting the sensor's operation. Furthermore, by setting a clamping mechanism, the sensor can be fixed to the connected flexible pipe during use, effectively preventing displacement and shaking at the connection between the flexible pipe and the air inlet pipe, thus avoiding any impact on detection accuracy due to loosening of the connection.

Description

Technical Field

[0001] This utility model relates to the field of oxygen generator technology, and in particular to a fixing structure for an oxygen concentration sensor used in an oxygen generator. Background Technology

[0002] An oxygen concentrator is a machine that produces oxygen. Its principle is based on air separation technology. First, air is compressed at high density, and then the different condensation points of the components in the air are used to separate the gas and liquid at a certain temperature. Then, it is distilled to separate oxygen and nitrogen. In general, because it is mostly used to produce oxygen, people usually call it an oxygen concentrator. In order to monitor the output oxygen concentration in real time, an oxygen concentration sensor is usually installed inside the oxygen concentrator. The oxygen concentration sensor is connected to the oxygen inlet pipe of the oxygen concentrator through a hose. In order to prevent the hose and sensor from loosening during long-term use, a fixing structure is usually used to fix them.

[0003] However, the existing oxygen concentration sensor fixing structure can only fix the hose during use, which is a single function and reduces its practicality. It cannot seal the air inlet. When the sensor is placed outside alone, dust in the air can enter the sensor through the air inlet, which will affect the subsequent use of the sensor.

[0004] Therefore, those skilled in the art have provided a fixing structure for an oxygen concentration sensor in an oxygen generator to solve the problems mentioned in the background art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a fixing structure for an oxygen concentration sensor used in an oxygen generator, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fixed structure for an oxygen concentration sensor in an oxygen generator, comprising a sensor body, a detection box fixedly connected to the lower end of the sensor body, an air inlet pipe provided at the lower end of the detection box, a first spiral column spirally connected inside the air inlet pipe, a movable mechanism provided inside the air inlet pipe, the movable mechanism comprising a connecting column rotatably connected inside the air inlet pipe, a connecting plate fixedly connected to the connecting column, a connecting rod fixedly connected to the outer wall of the connecting plate, and a movable ball fixedly connected to the lower end of the connecting rod.

[0007] As a further technical solution of this utility model, the movable mechanism also includes a spring column fixedly connected to the inner wall of the air intake pipe, a movable plate fixedly connected to the movable end of the spring column, a plurality of toothed grooves being provided on the movable plate, and a first gear fixedly connected to the connecting column, the toothed grooves meshing with the first gear.

[0008] As a further technical solution of this utility model, a limiting block is fixedly connected to the outer wall of the air intake pipe, the limiting block is connected to the internal space of the air intake pipe, and the diameter of the movable ball is the same as the inner diameter of the air intake pipe.

[0009] As a further technical solution of this utility model, the movable ball is made of soft rubber material, which can deform under pressure and be housed inside the limiting block.

[0010] As a further technical solution of this utility model, a clamping mechanism is provided at the lower end of the first spiral column. The clamping mechanism includes a limiting plate fixedly connected to the lower end of the first spiral column, a moving rod rotatably connected to the limiting plate, and a fixed arc strip fixedly connected to the lower end of the moving rod.

[0011] As a further technical solution of this utility model, the clamping mechanism is provided in two sets, symmetrically distributed at the lower end of the first spiral column.

[0012] As a further technical solution of this utility model, when the clamping mechanism is located outside the air intake pipe, it can rotate within a small range; when the clamping mechanism is located inside the air intake pipe, it is in a vertical state.

[0013] This utility model provides a fixing structure for an oxygen concentration sensor used in an oxygen generator, which has the following advantages compared with the prior art:

[0014] By incorporating a movable mechanism, the sensor can be connected to the flexible hose when used inside the oxygen concentrator. When the sensor is not in use externally, the air inlet pipe on the sensor can be automatically sealed without manual operation, which is very convenient. After sealing, it can effectively prevent dust in the air from entering the sensor through the air inlet pipe, providing a good protective effect and preventing dust from affecting the use of the sensor. Secondly, by incorporating a clamping mechanism, the sensor can be fixed to the connected flexible pipe during use, which can effectively prevent the connection between the flexible pipe and the air inlet pipe from shifting or shaking, and avoid the connection of the flexible pipe from loosening and affecting the accuracy of the detection. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a fixing structure for an oxygen concentration sensor used in an oxygen generator;

[0016] Figure 2 for Figure 1 A three-dimensional diagram of the activity organization;

[0017] Figure 3 for Figure 2 A magnified structural diagram at point A;

[0018] Figure 4 for Figure 2A three-dimensional structural diagram of the clamping mechanism.

[0019] In the diagram: 1. Sensor body; 2. Detection box; 3. Air inlet pipe; 4. Limiting block; 5. First spiral column; 6. Spring column; 7. Moving plate; 8. Gear groove; 9. First gear; 10. Connecting column; 11. Connecting plate; 12. Connecting rod; 13. Movable ball; 14. Limiting plate; 15. Moving rod; 16. Fixed arc strip. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution for fixing an oxygen concentration sensor for an oxygen generator: it includes a sensor body 1, a detection box 2 fixedly connected to the lower end of the sensor body 1, and an air inlet pipe 3 provided at the lower end of the detection box 2 for connecting the sensor body 1 to an external pipe. A first spiral column 5 is spirally connected inside the air inlet pipe 3. A connector (not shown in the figure) is provided on the end of the external pipe connected to the sensor body 1. By inserting the connector into the interior of the first spiral column 5, the connection between the external pipe and the first spiral column 5 can be completed, thereby completing the connection between the sensor body 1 and the external pipe. The friction between the connector and the inner wall of the first spiral column 5 is greater than the friction between the first spiral column 5 and the air inlet pipe 3. By rotating the external pipe (the flexible pipe has a certain degree of elasticity and can rotate to a certain extent), the first spiral column 5 can be rotated based on the air inlet pipe 3.

[0022] A limiting block 4 is connected to the intake pipe 3, and the space inside the intake pipe 3 and the limiting block 4 are connected. A connecting column 10 is rotatably connected to the inner wall of the intake pipe 3. A connecting plate 11 is fixedly connected to the connecting column 10. The connecting plate 11 is fixedly connected to the movable ball 13 through the connecting rod 12. When the connecting rod 12 and the movable ball 13 are in a vertical state, the intake pipe 3 can be closed. When the connecting rod 12 and the movable ball 13 are in an inclined state, the intake pipe 3 can be opened.

[0023] A spring column 6 is fixedly connected to the inner wall of the intake pipe 3. A movable plate 7 is fixedly connected to the movable part of the spring column 6. When the movable plate 7 is squeezed by an external force, it will move and pull the spring column 6. When the movable plate 7 is no longer subjected to external force, it will return to its original position under the action of the spring column 6. Multiple toothed grooves 8 are provided on the movable plate 7. A first gear 9 is fixedly connected to the connecting column 10. When the movable plate 7 moves, it will push the first gear 9 to rotate through the toothed grooves 8, thereby adjusting the position of the movable ball 13.

[0024] The lower end of the first spiral column 5 is fixedly connected to a limiting plate 14. A moving rod 15 is rotatably connected to the limiting plate 14 via a spring shaft. A fixing arc strip 16 is fixedly connected to the lower end of the moving rod 15. The outer wall of the lowest part of the air intake pipe 3 is designed to be inclined. When the first spiral column 5 is located at the lowest part of the air intake pipe 3, the moving rod 15 and the fixing arc strip 16 are in a rotatable state based on the limiting plate 14. When the first spiral column 5 moves into the air intake pipe 3, it will fix the moving rod 15 and the fixing arc strip 16 to a vertical state. At this time, the fixing arc strip 16 can fix the external soft pipe.

[0025] The working principle of this utility model is as follows: When the sensor is needed, the sensor body 1 is first installed inside the oxygen generator, and then connected to the oxygen delivery pipe of the oxygen generator through a flexible pipe. At this time, one end of the flexible pipe can be connected to the oxygen delivery pipe, and the other end can be fixed by inserting a connector into the inside of the first spiral column 5. Then, the first spiral column 5 is rotated through the flexible pipe based on the air inlet pipe 3. At this time, the first spiral column 5 will rotate into the air inlet pipe 3. When the first spiral column 5 moves, it will push the moving plate 7 to move upward. When the moving plate 7 moves, it will pull the spring column 6 on the one hand, and push the first gear 9 to rotate through the tooth groove 8 on the other hand. Thus, the connecting plate 11 will rotate synchronously through the connecting column 10. The connecting rod 12 drives the movable ball 13 to move into the interior of the limiting block 4, thus no longer blocking the air inlet pipe 3. When the first spiral column 5 moves, it also drives the limiting plate 14 to move upward. Under the limiting condition inside the air inlet pipe 3, the moving rod 15 and the fixed arc strip 16 move to a vertical position, completing the fixation of the soft water pipe. Continue to rotate the spiral column on the soft pipe, and at this time the spiral column can be fixed inside the first spiral column 5, thus completing the connection between the sensor body 1 and the external soft pipe. To disassemble, simply rotate the soft pipe in the opposite direction. When the first spiral column 5 moves to the outside of the air inlet pipe 3, the movable ball 13 will return to its original position, re-sealing the air inlet pipe 3, which can effectively prevent dust from entering the interior of the sensor body 1.

[0026] 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 principles 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 are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A fixing structure for an oxygen concentration sensor used in an oxygen generator, comprising a sensor body (1), wherein a detection box (2) is fixedly connected to the lower end of the sensor body (1), and an air inlet pipe (3) is provided at the lower end of the detection box (2), characterized in that: The air intake pipe (3) is internally spirally connected to a first spiral column (5). The air intake pipe (3) is internally provided with a movable mechanism. The movable mechanism includes a connecting column (10) rotatably connected inside the air intake pipe (3). A connecting plate (11) is fixedly connected to the connecting column (10). A connecting rod (12) is fixedly connected to the outer wall of the connecting plate (11). A movable ball (13) is fixedly connected to the lower end of the connecting rod (12).

2. The oxygen concentration sensor fixing structure for an oxygen generator according to claim 1, characterized in that, The moving mechanism also includes a spring column (6) fixedly connected to the inner wall of the air intake pipe (3). The movable end of the spring column (6) is fixedly connected to a moving plate (7). The moving plate (7) has multiple toothed grooves (8). The connecting column (10) is fixedly connected to a first gear (9). The toothed grooves (8) mesh with the first gear (9).

3. The oxygen concentration sensor fixing structure for an oxygen generator according to claim 2, characterized in that, A limiting block (4) is fixedly connected to the outer wall of the air intake pipe (3). The limiting block (4) and the internal space of the air intake pipe (3) are connected. The diameter of the movable ball (13) is the same as the inner diameter of the air intake pipe (3).

4. The oxygen concentration sensor fixing structure for an oxygen generator according to claim 3, characterized in that, The movable ball (13) is made of soft rubber material and can be deformed by compression and housed inside the limiting block (4).

5. The oxygen concentration sensor fixing structure for an oxygen generator according to claim 4, characterized in that, The lower end of the first spiral column (5) is provided with a clamping mechanism. The clamping mechanism includes a limiting plate (14) fixedly connected to the lower end of the first spiral column (5). A moving rod (15) is rotatably connected to the limiting plate (14). A fixed arc strip (16) is fixedly connected to the lower end of the moving rod (15).

6. The oxygen concentration sensor fixing structure for an oxygen generator according to claim 5, characterized in that, The clamping mechanism is provided in two sets, symmetrically distributed at the lower end of the first spiral column (5).

7. The oxygen concentration sensor fixing structure for an oxygen generator according to claim 6, characterized in that, When the clamping mechanism is located outside the air intake pipe (3), it can rotate within a small range. When the clamping mechanism is located inside the air intake pipe (3), it is in a vertical state.

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