An oxygen meter assembly with oxygen flow rate detection function

Abstract

The application relates to the technical field of oxygen flow rate detection, in particular to an oxygen meter assembly with an oxygen flow rate detection function, which comprises a detection cylinder, an inner groove is fixedly arranged at the top of the outer side of the detection cylinder, a fixed plate is fixedly arranged at the middle of the inner wall of the inner groove, a resistance meter is fixedly arranged at the middle of the inner side of the fixed clamping plate, an electric resistance wire is electrically connected to the top of the resistance meter, a hot wire rod is electrically connected to the end, away from the resistance meter, of the electric resistance wire, and a fixed buckle pipe is jogglingly arranged on the outer circumferential surface of the hot wire rod. The hot wire rod, the electric resistance wire and the resistance meter and other components are arranged, the lower fan plate and the hot wire rod are matched, when airflow flows, the hot wire is lowered in temperature due to heat dissipation, the resistance value is changed, the airflow rate is determined by measuring the change of the hot wire resistance, the sensitivity is improved, the response speed is fast, the tiny flow rate and the instantaneous flow rate can be measured, the precision of the oxygen flow rate detection is ensured, and the error reduction effect is achieved.

Description

Technical Field

[0001] This application relates to the technical field of oxygen flow rate detection, and in particular to an oxygen meter assembly with oxygen flow rate detection function. Background Technology

[0002] In hospitals, patients with breathing difficulties, cardiopulmonary insufficiency, etc., need to be given oxygen to increase the oxygen content in their blood, relieve symptoms, and maintain vital signs. Gas flow rate detection is of great significance in many fields such as industrial production, environmental monitoring, and scientific research. Oxygen flow rate detection is very important in industrial production, medical fields and other fields.

[0003] A search revealed Chinese Patent Publication No. CN 217661020 U, which discloses an oxygen meter assembly with oxygen flow rate detection function. The assembly includes an installation unit and a detection unit. The installation unit comprises an installation module and a calibration module, with the calibration module mounted on the installation module. The installation module surrounds a flow meter limiting area. The detection unit includes a sensing module. This oxygen meter assembly with oxygen flow rate detection function, through the installation module, allows the oxygen meter flow meter to be installed within the flow meter limiting area. Through the sensing module, which aligns with the flow meter scale lines via the calibration module, the sensing module detects the flow float on the flow meter, further enabling the detection of the oxygen flow rate. This allows for timely detection of incorrect flow adjustments during nursing care, saving manpower and time in post-discharge billing.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: when the existing oxygen flow rate detection components are installed on the surface of oxygen cylinders, oxygen leakage is prone to occur at the interface, resulting in oxygen loss. Furthermore, traditional oxygen flow rate detection has poor sensitivity and slow response speed. Utility Model Content

[0005] To address the problems mentioned in the background section, this application provides an oxygen meter assembly with oxygen flow rate detection function.

[0006] This application provides an oxygen meter assembly with oxygen flow rate detection function, which adopts the following technical solution: it includes a detection cylinder, an internal groove is fixedly provided on the top of the outer side of the detection cylinder, a fixing plate is fixedly provided in the middle of the inner wall of the internal groove, a resistance meter is fixedly provided on the inner side of the middle of the fixing plate, a resistance wire is electrically connected to the top of the resistance meter, a hot wire rod is electrically connected to the end of the resistance wire away from the resistance meter, a fixing buckle is snapped onto the outer circumference of the hot wire rod, and the end of the fixing buckle away from the hot wire rod is fixedly provided to one side of the inner wall of the detection cylinder through a connecting shaft.

[0007] Both ends of the detection cylinder are fixedly connected with connecting pipes. The bottom of the connecting pipe below the detection cylinder is connected to a connecting inner pipe. A sleeve is fixedly installed at the top of the outer side of the connecting inner pipe. A limit crossbar is fixedly installed in the middle of one side of the circumference of the sleeve. A fixing frame is fixedly installed at the edge of the notch in the middle of the limit crossbar. A hydraulic rod is fixedly installed at the top of the inner wall of the fixing frame. A first power frame is fixedly installed at the bottom of the hydraulic rod. The two ends of the bottom of the first power frame are rotatably connected with inclined rods. A second power frame is rotatably connected at the end of the inclined rod away from the first power frame. The outer side of the second power frame is fixedly installed at the outer end of one side of the vertical plate. The inner end of the vertical plate is fixedly installed at the outer side of one end of the clamping ring. The inner side of the clamping ring is slidably installed in the middle of the inner wall of the power groove fixed in the middle of the sleeve.

[0008] Optionally, the hot wire rod is set as a three-ringed structure, with the three rings of the hot wire rod electrically connected by a resistance wire. The fixing clips on the edge of the hot wire rod are set in a "C" shape, with four fixing clips evenly snapped onto the edge of the hot wire rod.

[0009] Optionally, a horizontal shaft is fixedly installed on the lower part of the inner wall of the detection cylinder, and a fixing ring is rotatably sleeved on the middle of the outer circumference of the horizontal shaft. Fan plates are evenly arranged on the outer side of the fixing ring, and an oxygen gauge is fixedly installed on the top of the connecting pipe installed above the detection cylinder.

[0010] Optionally, the clamping ring is set in a "C" shape, with vertical plates fixed at both ends of the clamping ring, and a top sliding plate at the top of each of the two vertical plates.

[0011] Optionally, a top slide plate is fixedly installed on the outer side of the top of the vertical plate. The middle position of the top of the top slide plate is slidably sleeved on the outer circumferential surface of the limiting crossbar. A spring is fixedly installed on the outer side of the top slide plate. The middle part of the spring is slidably sleeved on the outer circumferential surface of one end of the limiting crossbar. The end of the spring away from the top slide plate is fixedly installed on one side of the fixed plate. The middle part of the fixed plate is fixedly sleeved on the outer circumferential surface of the limiting crossbar.

[0012] Optionally, a gap is provided between the inner wall of the sleeve and the connecting inner tube, the power groove in the middle of the sleeve penetrates the middle of the outer wall, and the sleeve is a deformable rubber tube.

[0013] Optionally, the inner corners of the bottom of the fixing frame are rounded, and the inner sides of both ends of the bottom of the fixing frame are slidably connected to the outer sides of the two diagonal bars.

[0014] In summary, this application includes the following beneficial technical effects: 1. This utility model, by setting up components such as a hot wire rod, resistance wire, and resistance meter, and through the cooperation of the lower fan plate and the hot wire rod, when airflow passes by, the temperature of the hot wire will decrease due to heat dissipation, and the resistance value will change accordingly. By measuring the change in the resistance of the hot wire, the gas flow rate can be determined, which improves the sensitivity and response speed, can measure small flow rates and instantaneous flow rates, ensures the accuracy of oxygen flow rate detection, and reduces errors.

[0015] 2. This utility model, by setting components such as a clamping ring, vertical plates, and diagonal rods, uses the diagonal rods to drive the two vertical plates to move simultaneously relative to each other or towards each other. The clamping rings drive the sleeve to move towards the outer wall of the connecting inner tube, thereby adding a sealing device to the outside of the connection between the oxygen cylinder and the pipeline to prevent oxygen leakage, while also facilitating the disassembly of the detection components. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure in the embodiments of this application; Figure 2 This is an embodiment of the present application. Figure 1 Enlarged view of point A; Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the sleeve in the embodiments of this application; Figure 4 This is a schematic diagram of the internal structure of the detection cylinder in a three-dimensional cross-section in an embodiment of this application.

[0017] Reference numerals: 1. Detection cylinder; 2. Connecting pipe; 3. Oxygen gauge; 4. Hoop ring; 5. Power slot; 6. Fixing plate; 7. Hot wire rod; 8. Fixing buckle; 9. Horizontal axis; 10. Fan plate; 11. Resistance wire; 12. Resistance meter; 13. Internal slot; 14. Fixing plate; 15. Vertical plate; 16. First power frame; 17. Limiting crossbar; 18. Hydraulic rod; 19. Connecting inner tube; 20. Fixing frame; 21. Spring; 22. Top sliding plate; 23. Diagonal bar; 24. Second power frame; 25. Sleeve. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0019] This application discloses an oxygen meter component with oxygen flow rate detection function. For example... Figure 1-4As shown, the device includes a detection cylinder 1. A horizontal shaft 9 is fixedly installed on the lower part of the inner wall of the detection cylinder 1. A fixing ring is rotatably sleeved on the middle of the outer circumference of the horizontal shaft 9. A gap is provided between the inner wall of the sleeve 25 and the connecting inner tube 19 to facilitate the insertion of the connecting inner tube 19 into the outlet of the oxygen cylinder. The power groove 5 in the middle of the sleeve 25 penetrates the middle of the outer wall. The sleeve 25 is a deformable rubber tube. At the same time, the sleeve 25 is sleeved on the outside of the oxygen cylinder outlet. The deformable design makes it easier to fit the outlet of the oxygen cylinder. Fan plates 10 are evenly arranged on the outside of the fixing ring. An oxygen gauge 3 is fixedly installed on the top of the connecting pipe 2 above the detection cylinder 1. When oxygen passes through the inside of the detection cylinder 1, the fixed ring drives the fan plates 10 to rotate inside the detection cylinder 1 due to the influence of the gas flow rate.

[0020] Please see Figure 4 An internal groove 13 is fixedly installed on the top of the outer side of the detection cylinder 1. A fixing plate 6 is fixedly installed in the middle of the inner wall of the internal groove 13. A resistance meter 12 is fixedly installed on the inner side of the middle of the fixing plate 14. A resistance wire 11 is electrically connected to the top of the resistance meter 12. A hot wire rod 7 is electrically connected to the end of the resistance wire 11 away from the resistance meter 12. The hot wire rod 7 is set as a three-ring ring. The three rings of the hot wire rod 7 are electrically connected through the resistance wire 11. The three rings of the hot wire rod 7 can be more evenly distributed inside the detection cylinder 1 and receive oxygen blown from below more evenly. The fixing buckle tube 8 on the edge of the hot wire rod 7 is set in a "C" shape. There are four fixing buckles 8, which are evenly snapped into the edge of the hot wire rod 7. The "C" shaped fixing buckle tube 8 facilitates the installation and removal of the hot wire rod 7. The outer circumference of the hot wire rod 7 is snapped with a fixing buckle tube 8. The end of the fixing buckle tube 8 away from the hot wire rod 7 is fixed to one side of the inner wall of the detection cylinder 1 through a connecting shaft.

[0021] Please see Figure 2 and Figure 3The upper and lower ends of the detection cylinder 1 are fixedly connected to the connecting pipe 2. The bottom of the connecting pipe 2 below the detection cylinder 1 is connected to the connecting inner pipe 19. The top position of the outer side of the connecting inner pipe 19 is fixedly provided with the sleeve 25. The middle of one side of the circumferential surface of the sleeve 25 is fixedly provided with the limiting crossbar 17. The edge of the notch in the middle of the limiting crossbar 17 is fixedly provided with the fixing frame 20. The inner side of the bottom of the fixing frame 20 is rounded to make it easier for the inclined rod 23 to slide at the bottom of the fixing frame 20. The inner sides of the bottom ends of the fixing frame 20 are slidably connected to the outer sides of the two inclined rods 23. The two inclined rods 23 move simultaneously under the action of the upper hydraulic rod 18. The top of the inner wall of the fixing frame 20 is fixedly provided with the hydraulic rod 18. The bottom of the hydraulic rod 18 is fixedly provided with the first power frame 16. The bottom ends of the first power frame 16 are rotatably provided with the inclined rods 23 through the rotating rod. The inclined rods 23 are away from the first power frame 16. A second power frame 24 is rotatably mounted on one end of the power frame 16. The outer side of the second power frame 24 is fixedly mounted on the outer end of one side of the vertical plate 15. A top slide plate 22 is fixedly mounted on the outer side of the top of the vertical plate 15. The middle position of the top of the top slide plate 22 is slidably sleeved on the outer circumferential surface of the limiting crossbar 17. The top slide plate 22 slides on the surface of the limiting crossbar 17 under the action of the lower vertical plate 15. The top slide plate 22 restricts the movement trajectory of the vertical plate 15, ensuring that the vertical plate 15 can drive the clamping ring 4 to slide around the outer side of the sleeve 25. A spring 21 is fixedly mounted on the outer side of the top slide plate 22. The middle part of the spring 21 is slidably sleeved on the outer circumferential surface of one end of the limiting crossbar 17. The end of the spring 21 away from the top slide plate 22 is fixedly mounted on one side of the fixing plate 6. The middle part of the fixing plate 6 is fixedly sleeved on the outer circumferential surface of the limiting crossbar 17. The spring 21 provides assistance for the reset of the top slide plate 22.

[0022] Please see Figure 3 The inner end of the vertical plate 15 is fixedly set on the outer side of one end of the clamping ring 4. The clamping ring 4 is set in the shape of "C". Both ends of the clamping ring 4 are fixedly set with vertical plates 15. The top of the two vertical plates 15 is set with a top sliding plate 22. The two ends of the "C" shaped clamping ring 4 are not in contact. When subjected to tension, the two ends move closer together. At the same time, the diameter of the clamping ring 4 decreases, so that the sleeve 25 can deform and contact the inner tube 19 inward. When the inner wall of the sleeve 25 contacts the outer side of the inner tube 19, the inner tube 19 is sealed. The inner side of the clamping ring 4 is slidably set in the middle of the inner wall of the power groove 5 fixed in the middle of the sleeve 25.

[0023] The implementation principle of an oxygen meter component with oxygen flow rate detection function in this application embodiment is as follows: During use, the bottom of the connecting inner tube 19 is connected to the outlet of the oxygen cylinder. Oxygen inside the oxygen cylinder flows into the detection cylinder 1 through the connecting inner tube 19. Based on the principle of heat conduction, when airflow passes through, the temperature of the hot wire rod 7 decreases due to heat dissipation, and the resistance value changes accordingly. The resistance value of the hot wire rod 7 is transmitted to the inside of the resistance meter 12 through the resistance wire 11. The gas flow rate is determined by measuring the change in the resistance of the hot wire. This hot wire oxygen detection method has high sensitivity and fast response speed. It can measure minute and instantaneous flow velocities, and more accurately detect the oxygen flow rate. The sleeve 25 is connected to the outside of the oxygen cylinder outlet. The hydraulic rod 18 is activated to drive the first power frame 16 to move. The first power frame 16 moves the two vertical plates 15 simultaneously through the inclined rods 23 at both ends of the bottom. The vertical plates 15 drive the "C"-shaped clamping ring 4 to move towards the inner wall of the sleeve 25. When the clamping ring 4 continues to move, the sleeve 25 deforms and fits tightly against the connecting inner tube 19 and the oxygen cylinder outlet, ensuring the sealing of the oxygen cylinder outlet connection position.

[0024] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An oxygen meter assembly with oxygen flow rate detection function, comprising a detection cylinder (1), characterized in that: An internal groove (13) is fixedly installed on the top of the outer side of the detection cylinder (1). A fixing plate (6) is fixedly installed in the middle of the inner wall of the internal groove (13). A resistance meter (12) is fixedly installed on the inner side of the middle of the fixing plate (14). A resistance wire (11) is electrically connected to the top of the resistance meter (12). A hot wire rod (7) is electrically connected to the end of the resistance wire (11) away from the resistance meter (12). A fixing buckle (8) is snapped onto the outer circumference of the hot wire rod (7). The end of the fixing buckle (8) away from the hot wire rod (7) is fixedly installed on one side of the inner wall of the detection cylinder (1) through a connecting shaft. The upper and lower ends of the detection cylinder (1) are fixedly connected with connecting pipes (2). The bottom of the connecting pipe (2) below the detection cylinder (1) is connected to the inner connecting pipe (19). A sleeve (25) is fixedly installed at the top of the outer side of the inner connecting pipe (19). A limit crossbar (17) is fixedly installed in the middle of one side of the circumference of the sleeve (25). A fixing frame (20) is fixedly installed at the edge of the notch in the middle of the limit crossbar (17). A hydraulic rod (18) is fixedly installed at the top of the inner wall of the fixing frame (20). A hydraulic rod (18) is fixedly installed at the bottom of the hydraulic rod (18). There is a first power frame (16). The bottom ends of the first power frame (16) are rotatably equipped with inclined rods (23) through rotating rods. The end of the inclined rod (23) away from the first power frame (16) is rotatably equipped with a second power frame (24). The outer side of the second power frame (24) is fixedly installed on the outer end of one side of the vertical plate (15). The inner end of the vertical plate (15) is fixedly installed on the outer side of one end of the clamping ring (4). The inner side of the clamping ring (4) is slidably installed in the middle of the inner wall of the power groove (5) fixed in the middle of the sleeve (25).

2. An oxygen meter assembly with oxygen flow rate detection function according to claim 1, characterized in that: The hot wire rod (7) is configured as a three-ringed ring, and the three ringed hot wire rods (7) are electrically connected by a resistance wire (11). The fixing buckle (8) on the edge of the hot wire rod (7) is set in a "C" shape, and there are four fixing buckles (8) evenly snapped onto the edge of the hot wire rod (7).

3. An oxygen meter assembly with oxygen flow rate detection function according to claim 1, characterized in that: A horizontal shaft (9) is fixedly installed on the lower part of the inner wall of the detection cylinder (1). A fixed collar is rotatably sleeved on the middle of the outer circumference of the horizontal shaft (9). Fan plates (10) are evenly arranged on the outer side of the fixed collar. An oxygen meter (3) is fixedly installed on the top of the connecting pipe (2) above the detection cylinder (1).

4. An oxygen meter assembly with oxygen flow rate detection function according to claim 1, characterized in that: The clamping ring (4) is configured in the shape of "C". Both ends of the clamping ring (4) are fixedly provided with vertical plates (15), and the top of the two vertical plates (15) is provided with a top sliding plate (22).

5. An oxygen meter assembly with oxygen flow rate detection function according to claim 1, characterized in that: A top slide plate (22) is fixedly installed on the outer side of the top of the vertical plate (15). The middle position of the top of the top slide plate (22) is slidably sleeved on the outer circumferential surface of the limiting crossbar (17). A spring (21) is fixedly installed on the outer side of the top slide plate (22). The middle part of the spring (21) is slidably sleeved on the outer circumferential surface of one end of the limiting crossbar (17). The end of the spring (21) away from the top slide plate (22) is fixedly installed on one side of the fixing plate (6). The middle part of the fixing plate (6) is fixedly sleeved on the outer circumferential surface of the limiting crossbar (17).

6. An oxygen meter assembly with oxygen flow rate detection function according to claim 1, characterized in that: A gap is provided between the inner wall of the sleeve (25) and the connecting inner tube (19). The power groove (5) in the middle of the sleeve (25) penetrates the middle of the outer wall. The sleeve (25) is a deformable rubber tube.

7. An oxygen meter assembly with oxygen flow rate detection function according to claim 1, characterized in that: The bottom of the fixing frame (20) is rounded, and the inner sides of both ends of the bottom of the fixing frame (20) are slidably connected to the outer sides of the two diagonal rods (23).

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