Critical oxygen analysis device

By designing a combined structure of the oxygen analyzer and its protective casing, the problem of easy damage to handheld oxygen analyzers was solved, thus improving both safety and practicality.

CN224117805UActive Publication Date: 2026-04-14NANTONG QIFAN TESTING TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG QIFAN TESTING TECHNOLOGY CO LTD
Filing Date
2025-06-04
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing handheld oxygen analyzers lack protection and are easily damaged by external impacts and installation issues, resulting in low safety and reduced practicality.

Method used

A device comprising an oxygen analyzer body and a protective box was designed. By incorporating components such as an air inlet tube, an air intake head, a threaded rod, a limiting rod, a movable block, and a sponge pad, the device enables the storage and protection of the oxygen analyzer. Furthermore, components such as a storage frame, a tube winding column, and a placement seat protect the air inlet tube and air intake head, preventing loss or damage.

Benefits of technology

This improves the safety of the oxygen analyzer, prevents damage, enhances its practicality, and makes it more convenient to handle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a critical oxygen analysis device which comprises an oxygen analyzer body and a protection box, the protection box is sleeved on the outer surface of the bottom end of the oxygen analyzer body, a breather pipe is arranged outside the oxygen analyzer body, one end of the breather pipe is fixedly provided with an air suction head, and the other end of the breather pipe is fixedly provided with an air outlet. Grooves are formed in the inner walls of the two sides of the protection box, a threaded rod is rotationally connected into one groove, and the threaded rod penetrates through the inner wall of the groove and extends to the upper surface of the protection box. According to the oxygen analyzer disclosed by the utility model, the oxygen analyzer body, the protection box, the groove, the threaded rod, the rotating block, the limiting rod, the movable block and other parts are matched, so that the oxygen analyzer is stored and protected, and the oxygen analyzer body is stored in the protection box, so that the oxygen analyzer body is prevented from being damaged due to external collision and installation; the safety of the oxygen analyzer is improved, and the practicability of the oxygen analyzer is improved.
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Description

Technical Field

[0001] This utility model relates to the field of oxygen analysis technology, and in particular to a critical oxygen analysis device. Background Technology

[0002] Oxygen is an important component of Earth's atmosphere, making up about 21% of the air volume. As a colorless, tasteless, and odorless gas, oxygen is vital to life on Earth, participating in the respiration and energy production of most organisms. However, oxygen has a critical value. When the dissolved oxygen concentration in the air reaches a certain value, it will affect the respiration of organisms. In biology and industrial production, the critical oxygen concentration is a key factor that determines whether cellular respiration or product synthesis can continue. Therefore, it is necessary to use an oxygen analyzer to detect the oxygen concentration in the air.

[0003] In the existing technology, there are many types of oxygen analyzers, including cabinet-mounted, handheld, and portable types. Among them, most handheld oxygen analyzers are not protected and are directly exposed to the outside world, regardless of whether they are in use or not. This kind of setting makes oxygen analyzers easy to be damaged by external bumps and knocks, resulting in low safety and reduced practicality of handheld oxygen analyzers. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a critical oxygen analysis device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a critical oxygen analysis device, comprising an oxygen analyzer body and a protective box, wherein the protective box is fitted onto the outer surface of the bottom end of the oxygen analyzer body, a vent pipe is provided on the outside of the oxygen analyzer body, an air intake head is fixedly installed at one end of the vent pipe, grooves are provided on both inner walls of the protective box, a threaded rod is rotatably connected inside one of the grooves, the threaded rod penetrates the inner wall of the groove and extends to the upper surface of the protective box, a rotating block is fixedly installed at the top end of the threaded rod, a limit rod is fixedly installed on the inner wall of the other groove, movable blocks are fixedly installed at the bottom ends of both side walls of the oxygen analyzer body, a sponge pad is fixedly installed on the inner wall of the front end of the protective box, and a storage component is provided on the upper surface of the oxygen analyzer body.

[0006] As a further description of the above technical solution:

[0007] The two movable blocks are respectively set inside the corresponding grooves. The upper surface of one movable block is threadedly connected to the threaded rod, and the upper surface of the other movable block is slidably connected to the limiting rod.

[0008] As a further description of the above technical solution:

[0009] A display screen is fixedly installed at the front end of the oxygen analyzer body. A button is fixedly installed at the front end of the oxygen analyzer body below the display screen. An air inlet pipe and an air outlet pipe are fixedly installed on one side wall of the oxygen analyzer body. A fixing sleeve is threaded onto the outer surface of the air inlet pipe. The end of the air inlet pipe away from the inhalation head is connected to the fixing sleeve.

[0010] As a further description of the above technical solution:

[0011] Two fixed seats are fixedly installed at the front end of the protective box. A sliding rod is fixedly installed on the inner wall of the fixed seat. A slider is sleeved on the outer surface of the sliding rod. A pull strap is provided on the outside of the protective box. The two ends of the pull strap are fixedly connected to the two sliders respectively. A tension spring is sleeved on the outer surface of the sliding rod.

[0012] As a further description of the above technical solution:

[0013] One end of the tension spring is fixedly connected to the inner wall of the outer side of the fixed base, and the other end of the tension spring is fixedly connected to the slider.

[0014] As a further description of the above technical solution:

[0015] The storage assembly includes a storage frame, a tube winding column, and a placement seat. The storage frame, tube winding column, and placement seat are all fixedly installed on the upper surface of the oxygen analyzer body. The tube winding column and placement seat are both located inside the storage frame. A sealing plate is rotatably connected to the upper surface of the storage frame. A locking rod is fixedly installed on the inner wall of the storage frame. A locking seat is fixedly installed on the lower surface of the sealing plate.

[0016] As a further description of the above technical solution:

[0017] The suction head is adapted to the arc-shaped inner wall of the placement seat, and the locking rod is engaged with the arc-shaped inner wall of the card seat.

[0018] This utility model has the following beneficial effects:

[0019] 1. Compared with existing technologies, this critical oxygen analyzer achieves the function of storing and protecting the oxygen analyzer by setting up a combination of components such as the oxygen analyzer body, display screen, buttons, inlet pipe, outlet pipe, fixing sleeve, ventilation pipe, suction head, protective box, groove, threaded rod, rotating block, limit rod, movable block, sponge pad, fixing seat, sliding rod, slider, pull strap, and tension spring. By storing the oxygen analyzer body in the protective box, damage to the oxygen analyzer body caused by external bumps and installation is prevented, thereby improving the safety and practicality of the oxygen analyzer. At the same time, the pull strap, which can be quickly pulled up and rebounded, makes it more convenient to take out the oxygen analyzer.

[0020] 2. Compared with existing technologies, this critical oxygen analyzer achieves the function of storing and protecting the venting tube and the suction head by setting up a storage frame, a tube winding column, a placement seat, a sealing plate, a locking rod, and a locking seat. The venting tube is wound around the outer surface of the tube winding column, and the suction head is locked into the placement seat. Then, the sealing plate stores the venting tube and the suction head inside the storage frame. This can prevent the venting tube and the suction head from being lost, and it can also prevent the venting tube and the suction head from getting tangled or damaged. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a critical oxygen analysis device proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the threaded rod structure of a critical oxygen analyzer proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the limiting rod structure of a critical oxygen analysis device proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the sponge pad structure of a critical oxygen analysis device proposed in this utility model;

[0025] Figure 5 This is a schematic diagram of the belt structure of a critical oxygen analyzer proposed in this utility model;

[0026] Figure 6 This is a schematic diagram of the storage component structure of a critical oxygen analyzer proposed in this utility model.

[0027] Legend:

[0028] 1. Oxygen analyzer body; 2. Display screen; 3. Buttons; 4. Inlet pipe; 5. Outlet pipe; 6. Fixing sleeve; 7. Ventilation pipe; 8. Inhalation head; 9. Protective box; 10. Groove; 11. Threaded rod; 12. Rotating block; 13. Limiting rod; 14. Movable block; 15. Sponge pad; 16. Fixing base; 17. Slide rod; 18. Sliding block; 19. Pull strap; 20. Tension spring; 21. Storage frame; 22. Tube winding column; 23. Placement seat; 24. Sealing plate; 25. Clamping rod; 26. Clamping seat. Detailed Implementation

[0029] 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.

[0030] Reference Figures 1 to 6 The present invention provides a critical oxygen analysis device, comprising an oxygen analyzer body 1 and a protective box 9. The protective box 9 is fitted onto the outer surface of the bottom end of the oxygen analyzer body 1. Grooves 10 are provided on both inner walls of the protective box 9. A threaded rod 11 is rotatably connected inside one groove 10. The threaded rod 11 passes through the inner wall of the groove 10 and extends to the upper surface of the protective box 9. A rotating block 12 is fixedly installed at the top end of the threaded rod 11. A limiting rod 13 is fixedly installed on the inner wall of the other groove 10. Movable blocks 14 are fixedly installed at the bottom ends of both side walls of the oxygen analyzer body 1. The two movable blocks 14 are respectively set inside the corresponding grooves 10. The upper surface of one movable block 14 is threadedly connected to the threaded rod 11, and the upper surface of the other movable block 14 is slidably connected to the limiting rod 13. A sponge pad 15 is fixedly installed on the inner wall of the front end of the protective box 9.

[0031] In order to analyze the oxygen content in the air using an oxygen analyzer, a display screen 2 is fixedly installed at the front end of the oxygen analyzer body 1. A button 3 is fixedly installed at the front end of the oxygen analyzer body 1 below the display screen 2. An air inlet pipe 4 and an air outlet pipe 5 are fixedly installed on one side wall of the oxygen analyzer body 1. A fixing sleeve 6 is threadedly connected to the outer surface of the air inlet pipe 4. A ventilation pipe 7 is provided on the outside of the oxygen analyzer body 1. An air intake head 8 is fixedly installed at one end of the ventilation pipe 7. The end of the ventilation pipe 7 away from the air intake head 8 is connected to the fixing sleeve 6.

[0032] To facilitate the handling of the oxygen analyzer, two fixed seats 16 are fixedly installed at the front end of the protective box 9. A slide rod 17 is fixedly installed on the inner wall of the fixed seat 16, and a slider 18 is sleeved on the outer surface of the slide rod 17. A pull strap 19 is provided on the outside of the protective box 9. The two ends of the pull strap 19 are fixedly connected to the two sliders 18 respectively. A tension spring 20 is sleeved on the outer surface of the slide rod 17. One end of the tension spring 20 is fixedly connected to the inner wall of the outer side of the fixed seat 16, and the other end of the tension spring 20 is fixedly connected to the slider 18.

[0033] By incorporating the oxygen analyzer body 1, display screen 2, buttons 3, inlet pipe 4, outlet pipe 5, fixing sleeve 6, ventilation pipe 7, suction head 8, protective box 9, groove 10, threaded rod 11, rotating block 12, limit rod 13, movable block 14, sponge pad 15, fixing base 16, sliding rod 17, slider 18, pull strap 19, and tension spring 20, the oxygen analyzer is protected and stored. By storing the oxygen analyzer body 1 in the protective box 9, damage caused by external impacts and installation is prevented, improving the safety and practicality of the oxygen analyzer. Furthermore, the pull strap 19, which allows for quick lifting and rebound, makes retrieving the oxygen analyzer more convenient.

[0034] The upper surface of the oxygen analyzer body 1 is provided with a storage assembly, which includes a storage frame 21, a tube winding column 22, and a placement seat 23. The storage frame 21, the tube winding column 22, and the placement seat 23 are all fixedly installed on the upper surface of the oxygen analyzer body 1. The tube winding column 22 and the placement seat 23 are both located inside the storage frame 21. The suction head 8 is adapted to the arc-shaped inner wall of the placement seat 23. A sealing plate 24 is rotatably connected to the upper surface of the storage frame 21. A locking rod 25 is fixedly installed on the inner wall of the storage frame 21. A locking seat 26 is fixedly installed on the lower surface of the sealing plate 24. The locking rod 25 is engaged with the arc-shaped inner wall of the locking seat 26.

[0035] By setting up a storage frame 21, a tube winding column 22, a placement seat 23, a sealing plate 24, a locking rod 25, and a locking seat 26, the function of storing and protecting the vent tube 7 and the suction head 8 is realized. The vent tube 7 is wrapped around the outer surface of the tube winding column 22, and the suction head 8 is locked into the placement seat 23. Then, the sealing plate 24 stores the vent tube 7 and the suction head 8 inside the storage frame 21. On the one hand, it can prevent the vent tube 7 and the suction head 8 from being lost, and on the other hand, it can prevent the vent tube 7 and the suction head 8 from getting tangled or damaged.

[0036] Working principle: Before storing and protecting the oxygen analyzer, first store the ventilation tube 7 and the intake head 8 in the storage frame 21. Rotate the fixing sleeve 6 to remove it from the intake pipe 4, so that the ventilation tube 7 is separated from the intake pipe 4. Then, first insert the intake head 8 into the placement seat 23. Then, wrap the ventilation tube 7 around the outer surface of the tube winding column 22. After wrapping, rotate the sealing plate 24 downward so that the sealing plate 24 moves towards the storage frame 21. The clamping seat 26 moves towards the clamping rod 25. When the clamping rod 25 is inserted into the clamping seat 26, it restricts the sealing plate 24, thus completing the storage of the ventilation tube 7 and the intake head 8.

[0037] When storing and protecting the oxygen analyzer, rotate the rotating block 12. When the rotating block 12 rotates, it drives the threaded rod 11 to rotate inside the groove 10. Under the action of the limiting rod 13, the movable block 14 slides down along the outer surface of the limiting rod 13 inside the groove 10, and at the same time, it drives the oxygen analyzer body 1 to slide into the protective box 9. When the oxygen analyzer body 1 slides into the protective box 9, the storage is completed. During the process of the oxygen analyzer body 1 sliding into the protective box 9, the sponge pad 15 wipes the dust and water stains on the display screen 2 to keep the surface of the display screen 2 clean.

[0038] After the oxygen analyzer is stored away, when you take it out, pull the pull strap 19 so that the pull strap 19 drives the slider 18 to slide on the outer surface of the slide bar 17. The two sliders 18 move closer to each other, and at the same time the tension spring 20 is stretched and deformed. At this time, the pull strap 19 protrudes outward to make it easier to take out. After the oxygen analyzer is put down, release the pull strap 19. The tension spring 20 returns to its original position, which drives the slider 18 back to its original position, so that the pull strap 19 returns to its original state.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A critical oxygen analysis device, comprising an oxygen analyzer body (1) and a protective box (9), characterized in that: The protective box (9) is fitted onto the outer surface of the bottom end of the oxygen analyzer body (1). A ventilation pipe (7) is provided on the outside of the oxygen analyzer body (1). An air intake head (8) is fixedly installed at one end of the ventilation pipe (7). Grooves (10) are provided on both inner walls of the protective box (9). A threaded rod (11) is rotatably connected inside one of the grooves (10). The threaded rod (11) passes through the inner wall of the groove (10) and extends to the upper surface of the protective box (9). A rotating block (12) is fixedly installed at the top of the threaded rod (11). A limit rod (13) is fixedly installed on the inner wall of the other groove (10). Movable blocks (14) are fixedly installed at the bottom ends of both side walls of the oxygen analyzer body (1). A sponge pad (15) is fixedly installed on the inner wall of the front end of the protective box (9). A storage component is provided on the upper surface of the oxygen analyzer body (1).

2. The critical oxygen analysis device according to claim 1, characterized in that: The two movable blocks (14) are respectively set inside the corresponding grooves (10). The upper surface of one movable block (14) is threadedly connected to the threaded rod (11), and the upper surface of the other movable block (14) is slidably connected to the limiting rod (13).

3. The critical oxygen analyzer according to claim 1, characterized in that: A display screen (2) is fixedly installed at the front end of the oxygen analyzer body (1). A button (3) is fixedly installed at the front end of the oxygen analyzer body (1) below the display screen (2). An air inlet pipe (4) and an air outlet pipe (5) are fixedly installed on one side wall of the oxygen analyzer body (1). A fixing sleeve (6) is threadedly connected to the outer surface of the air inlet pipe (4). The end of the ventilation pipe (7) away from the inhalation head (8) is connected to the fixing sleeve (6).

4. The critical oxygen analyzer according to claim 1, characterized in that: Two fixed seats (16) are fixedly installed at the front end of the protective box (9). A slide rod (17) is fixedly installed on the inner wall of the fixed seat (16). A slider (18) is sleeved on the outer surface of the slide rod (17). A pull strap (19) is provided on the outside of the protective box (9). The two ends of the pull strap (19) are fixedly connected to the two sliders (18) respectively. A tension spring (20) is sleeved on the outer surface of the slide rod (17).

5. A critical oxygen analyzer according to claim 4, characterized in that: One end of the tension spring (20) is fixedly connected to the inner wall of the outer side of the fixed seat (16), and the other end of the tension spring (20) is fixedly connected to the slider (18).

6. The critical oxygen analyzer according to claim 1, characterized in that: The storage assembly includes a storage frame (21), a tube winding column (22), and a placement seat (23). The storage frame (21), the tube winding column (22), and the placement seat (23) are all fixedly installed on the upper surface of the oxygen analyzer body (1). The tube winding column (22) and the placement seat (23) are both located inside the storage frame (21). A sealing plate (24) is rotatably connected to the upper surface of the storage frame (21). A locking rod (25) is fixedly installed on the inner wall of the storage frame (21). A locking seat (26) is fixedly installed on the lower surface of the sealing plate (24).

7. A critical oxygen analyzer according to claim 6, characterized in that: The suction head (8) is adapted to the arc-shaped inner wall of the placement seat (23), and the locking rod (25) is engaged with the arc-shaped inner wall of the locking seat (26).