Oxygen purity detection device

Abstract

The utility model discloses an oxygen purity detection device, which relates to the technical field of oxygen purity detection and specifically comprises a rectangular plate, L-shaped support arms are mounted at two ends of the rectangular plate, a second annular seat is mounted at the tail end of one L-shaped support arm, and a first annular seat is mounted at the tail end of the other L-shaped support arm; an internal thread is arranged in the first annular seat, an adjusting screw rod is in threaded connection with the interior of the first annular seat, the two ends of the adjusting screw rod extend out of the first annular seat, and a pressing disc is arranged at the end, close to the second annular seat, of the adjusting screw rod; a supporting pipe is installed in the second annular base, the two ends of the supporting pipe extend out of the second annular base, and a plug is arranged at the end, close to the first annular base, of the supporting pipe. When the oxygen purity detector is used, oxygen in the oxygen steel cylinder flows out and enters the oxygen purity detector along the guide pipe to be detected and analyzed, then the oxygen concentration in the oxygen steel cylinder can be obtained, and the detection precision is high.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen purity detection, in particular to an oxygen purity detection device. Background Art

[0002] When storing pure oxygen, it is usually pressurized and filled into a cylinder. The concentration of pure oxygen has specific requirements. If the concentration of nitrogen in the gas cylinder is to be detected, the nitrogen in the cylinder needs to be released before detection. This operation will not only mix with air, but also cause oxygen to be directly discharged to the outside, which ultimately leads to inaccurate detection accuracy. The existing oxygen concentration sensor cannot be directly connected to the valve of the steel cylinder, and cannot directly measure the oxygen concentration inside the steel cylinder. For this reason, we propose an oxygen purity detection device. Utility Model Content

[0003] In view of the existing insufficiency that the oxygen concentration stored in a steel cylinder cannot be directly detected, the utility model provides an oxygen purity detection device, which has the advantages of being connected to the top valve of the oxygen steel cylinder and having high detection accuracy, thereby solving the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0005] An oxygen purity detection device is designed, comprising a rectangular plate, both ends of the rectangular plate are equipped with L-shaped arms, a second annular seat is installed at the end of one L-shaped arm, and a first annular seat is installed at the end of the other L-shaped arm;

[0006] The first annular seat is provided with an internal thread and an adjusting screw is connected to the internal thread. Both ends of the adjusting screw extend out of the first annular seat, and a pressure plate is provided at one end of the adjusting screw close to the second annular seat.

[0007] A support tube is installed in the second annular seat, and both ends of the support tube extend to the outside of the second annular seat. A plug is provided at one end of the support tube close to the first annular seat, and the plug is connected to the support tube. A first pipe joint is provided at one end of the support tube away from the plug, and the other end of the first pipe joint is connected to the oxygen purity detector through a conduit.

[0008] Preferably, a rectangular opening is provided in the middle of the rectangular plate, and a handle is provided on a side of the rectangular opening away from the L-shaped support arm.

[0009] Preferably, a connecting seat is installed at one end of the adjusting screw away from the second annular seat, a shifting rod movably penetrates the connecting seat, and both ends of the shifting rod are respectively connected to limit blocks to prevent the shifting rod from escaping from the connecting seat.

[0010] Preferably, the oxygen purity detector comprises a housing, and operation buttons and a display screen are provided on the surface of the housing;

[0011] A control circuit board and a rechargeable battery are arranged inside the housing, and the control circuit board is respectively connected to the rechargeable battery, the operation buttons and the display screen through wires;

[0012] An air storage cavity is also provided in the shell, in which an oxygen concentration sensor is installed. The oxygen concentration sensor is connected to the control circuit board through a wire. A second pipe joint is connected to one side of the air storage cavity. The second pipe joint passes through the side of the shell to the outside, and the second pipe joint is connected to the free end of the catheter.

[0013] Preferably, one side of the air storage chamber is also connected to an exhaust pipe, the exhaust pipe runs through the side of the shell to the outside thereof, and an exhaust valve is installed on the end of the exhaust pipe.

[0014] Preferably, an annular connecting seat is installed in the middle of one side of the pressure plate away from the second annular seat, and the end of the adjusting screw is placed in the annular connecting seat and the two are rotatably connected.

[0015] Preferably, a rubber pad is provided on one side of the pressure plate close to the two annular seats.

[0016] Compared with the prior art, when the utility model is in use, the oxygen in the oxygen cylinder flows out, and the oxygen enters the oxygen purity detector along the conduit for detection and analysis, and the oxygen concentration in the oxygen cylinder can be obtained. Most importantly, the valve on the top of the oxygen cylinder is tightly connected to the plug, so there will be no oxygen leakage problem, and the detection accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of one side of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the other side of the utility model.

[0019] Figure 3 It is a schematic diagram of the internal structure of the shell in the utility model.

[0020] Figure 4 It is a schematic diagram of the structure of the utility model connected with an oxygen cylinder.

[0021] In the figure: 1. oxygen cylinder; 2. shell; 3. operation button; 4. display screen; 5. limit block; 6. lever; 7. connecting seat; 8. adjusting screw; 9. first annular seat; 10. handle; 11. rectangular mouth; 12. rectangular plate; 13. plug; 14. L-shaped arm; 15. support tube; 16. first pipe joint; 17. second annular seat; 18. conduit; 19. exhaust valve; 20. pressure plate; 21. annular connecting seat; 22. gas storage chamber; 23. exhaust pipe; 24. oxygen concentration sensor; 25. control circuit board; 26. rechargeable battery; 27. second pipe joint. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 4 The utility model provides a technical solution: an oxygen purity detection device, comprising a rectangular plate 12, both ends of the rectangular plate 12 are equipped with L-shaped arms 14, the two L-shaped arms 14 and the rectangular plate 12 form a "U"-shaped structure, a second annular seat 17 is installed at the end of one L-shaped arm 14, and a first annular seat 9 is installed at the end of the other L-shaped arm 14; Figure 1 As shown, a rectangular opening 11 is provided in the middle of the rectangular plate 12, and a handle 10 is provided on the side of the rectangular opening 11 away from the L-shaped support arm 14, so that it is convenient for the operator to hold the "U"-shaped structure, that is, to hold the handle 10 and pick up the "U"-shaped structure.

[0024] like Figure 2 As shown, the first annular seat 9 is provided with an internal thread and the internal thread is connected with an adjusting screw 8, both ends of the adjusting screw 8 extend outside the first annular seat 9, and a pressure plate 20 is provided at one end of the adjusting screw 8 close to the second annular seat 17, and an annular connecting seat 21 is installed in the middle of the side of the pressure plate 20 away from the second annular seat 17, and the end of the adjusting screw 8 is placed in the annular connecting seat 21 and the two are rotatably connected, and the two are specifically connected through a bearing, so that the pressure plate 20 can rotate freely on the end of the adjusting screw 8;

[0025] like Figure 1 As shown, a support tube 15 is installed in the second annular seat 17, and both ends of the support tube 15 extend to the outside of the second annular seat 17. A plug 13 is provided at one end of the support tube 15 close to the first annular seat 9. The plug 13 matches the inlet size and shape of the top valve of the oxygen cylinder 1. The plug 13 is connected to the support tube 15. A first pipe joint 16 is provided at one end of the support tube 15 away from the plug 13. The other end of the first pipe joint 16 is connected to the oxygen purity detector through a conduit 18.

[0026] In order to facilitate manual rotation of the adjusting screw 8, Figure 1As shown, a connecting seat 7 is installed at the end of the adjusting screw 8 away from the second annular seat 17, and a lever 6 is movably inserted into the connecting seat 7. Both ends of the lever 6 are respectively connected to limit blocks 5 to prevent it from escaping from the connecting seat 7. In this way, the lever 6 can move arbitrarily in the connecting seat 7. When it needs to be rotated, the adjusting screw 8 can be rotated by holding the lever 6, and the axes of the adjusting screw 8 and the lever 6 are vertically arranged.

[0027] Specifically, when the utility model is used, Figure 4 As shown, hold the handle 10 to place the valve on the top of the oxygen cylinder 1 between the pressure plate 20 and the plug 13, then hold the lever 6 to rotate the adjusting screw 8, so that the adjusting screw 8 drives the pressure plate 20 to move toward the valve on the top of the oxygen cylinder 1, and the plug 13 should be aligned with the valve inlet. After the pressure plate 20 contacts the valve sideways, the pressure plate 20 is locked and gradually tightened, so that the plug is tightly stuck in the valve inlet;

[0028] Then open the valve to let the oxygen in the oxygen cylinder 1 flow out. The oxygen will flow along the conduit 18 into the oxygen purity detector for detection and analysis, and the oxygen concentration in the oxygen cylinder 1 can be obtained.

[0029] like Figure 1 As shown, the oxygen purity detector specifically comprises a housing 2, on the surface of which operation buttons 3 and a display screen 4 are provided; Figure 3 As shown, a control circuit board 25 and a rechargeable battery 26 are provided inside the housing 2. The control circuit board 25 is respectively connected to the rechargeable battery 26, the operation button 3, and the display screen 4 through wires. The charging interface of the rechargeable battery 26 is located on the housing 2 for convenient charging.

[0030] The housing 2 is also provided with an air storage chamber 22, in which an oxygen concentration sensor 24 is installed, and the oxygen concentration sensor 24 is connected to the control circuit board 25 through a wire, and one side of the air storage chamber 22 is connected to a second pipe joint 27, which penetrates from the side of the housing 2 to the outside thereof, and is connected to the free end of the conduit 18. When the oxygen in the conduit 18 flows into the second pipe joint 27, it will eventually flow into the air storage chamber 22, and at this time, the oxygen concentration sensor 24 can be operated to detect oxygen, and the concentration of oxygen in the oxygen cylinder 1 can be directly obtained;

[0031] However, the above detection process ignores the air that originally exists inside the conduit 18 and the gas storage chamber 22. When the oxygen in the oxygen cylinder enters the gas storage chamber 22, it is bound to mix with the air, resulting in reduced detection accuracy. Therefore, in order to reduce the impact of air on the detection accuracy, Figure 1 and Figure 3As shown, an exhaust pipe 23 is also connected to one side of the gas storage chamber 22. The exhaust pipe 23 penetrates from the side of the shell 2 to the outside thereof. An exhaust valve 19 is installed at the end of the exhaust pipe 23. In actual operation, the exhaust valve 19 is opened. Originally, there is a certain pressure in the oxygen cylinder 1, so the speed of oxygen flowing out of the conduit 18 is very fast. Therefore, when the exhaust valve 19 is opened, the air can be discharged quickly. After the air is emptied and then tested, the detection accuracy can be improved.

[0032] like Figure 3 As shown, for the convenience of operation, the air storage chamber 22 is arranged in one end of the shell 2, the second pipe joint 27 is arranged on the side of the end of the shell 2, and the exhaust valve 19 is arranged on the side of the shell 2 on the side of the second pipe joint 27, which is convenient for manually holding the shell to open the exhaust valve.

[0033] Based on the above embodiment, further optimization can be performed. A rubber pad is provided on the side of the pressure plate 20 close to the second annular seat 17 to prevent the pressure plate 20 and the valve from slipping sideways. At the same time, the plug is a conical head and a sealing ring is provided on the surface.

[0034] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oxygen purity detection device, comprising a rectangular plate (12), characterized in that: L-shaped arms (14) are installed at both ends of the rectangular plate (12), a second annular seat (17) is installed at the end of one L-shaped arm (14), and a first annular seat (9) is installed at the end of the other L-shaped arm (14); The first annular seat (9) is provided with an internal thread and an adjusting screw (8) is connected to the internal thread. Both ends of the adjusting screw (8) extend outside the first annular seat (9), and a pressure plate (20) is provided at one end of the adjusting screw (8) close to the second annular seat (17); A support tube (15) is installed in the second annular seat (17), both ends of the support tube (15) extend to the outside of the second annular seat (17), a plug (13) is provided at one end of the support tube (15) close to the first annular seat (9), the plug (13) and the support tube (15) are connected, and a first pipe joint (16) is provided at one end of the support tube (15) away from the plug (13), and the other end of the first pipe joint (16) is connected to an oxygen purity detector through a conduit (18).

2. An oxygen purity detection device according to claim 1, characterized in that: A rectangular opening (11) is provided in the middle of the rectangular plate (12), and a handle (10) is provided on the side of the rectangular opening (11) away from the L-shaped support arm (14).

3. An oxygen purity detection device according to claim 2, characterized in that: A connecting seat (7) is installed at one end of the adjusting screw rod (8) away from the second annular seat (17), a shifting rod (6) movably penetrates the connecting seat (7), and both ends of the shifting rod (6) are respectively connected to limiting blocks (5) for preventing the shifting rod (6) from falling out of the connecting seat (7).

4. An oxygen purity detection device according to claim 1, characterized in that: The oxygen purity detector comprises a housing (2), and an operating button (3) and a display screen (4) are provided on the surface of the housing (2); A control circuit board (25) and a rechargeable battery (26) are provided inside the housing (2), and the control circuit board (25) is respectively connected to the rechargeable battery (26), the operating button (3), and the display screen (4) through wires; An air storage chamber (22) is also provided in the housing (2), an oxygen concentration sensor (24) is installed in the air storage chamber (22), the oxygen concentration sensor (24) is connected to a control circuit board (25) via a wire, a second pipe joint (27) is connected to one side of the air storage chamber (22), the second pipe joint (27) penetrates from the side of the housing (2) to the outside thereof, and the second pipe joint (27) is connected to the free end of the conduit (18).

5. An oxygen purity detection device according to claim 4, characterized in that: One side of the gas storage chamber (22) is also connected to an exhaust pipe (23), which runs through the side of the housing (2) to the outside thereof, and an exhaust valve (19) is installed at the end of the exhaust pipe (23).

6. An oxygen purity detection device according to claim 1, characterized in that: An annular connecting seat (21) is installed in the middle of one side of the pressure plate (20) away from the second annular seat (17), and the end of the adjusting screw rod (8) is placed in the annular connecting seat (21) and the two are rotatably connected.

7. An oxygen purity detection device according to claim 6, characterized in that: A rubber pad is provided on one side of the pressure plate (20) close to the second annular seat (17).

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