Oxygen content detector

Abstract

The utility model discloses an oxygen content detector which comprises a detector main body, the right end of the detector main body is fixedly connected with an exhaust pipe playing a conveying role, and the left end of the detector main body is fixedly connected with an air inlet pipe; a supporting structure and a protection structure are arranged on the left side of the exhaust pipe, the supporting structure comprises a supporting plate, connecting lugs, a connecting table, a mounting groove, a spring and a limiting block, the connecting groove is formed in the front upper end of the supporting plate, and the rear end of the supporting plate is integrally connected with the connecting lugs in a vertically symmetrical mode; the protection structure comprises a threaded rod, a protection plate and a long groove; the air inlet pipe and the exhaust pipe are both provided with valves, the left end of the air inlet pipe is rotationally connected with a mounting cylinder, and the left end of the mounting cylinder is in threaded connection with the right end of the bypass branch pipe. The oxygen content detector can be conveniently installed on a bypass of a vacuum pipeline, the service life is prolonged, supporting is convenient, and meanwhile dust is prevented from falling on a screen to affect watching.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen content detectors, in particular to an oxygen content detector. Background Art

[0002] Before feeding the DBU product hydrogenation process, the air in the kettle needs to be replaced by vacuum and nitrogen. After vacuum and nitrogen replacement, the oxygen content detector is turned on to detect the oxygen content during the last vacuuming. Only when the oxygen content is qualified can the material be fed. The oxygen content detector provides safety protection.

[0003] However, the existing oxygen content detector is directly installed on the kettle for processing DBU products, and long-term use will reduce its lifespan. Moreover, the existing oxygen content detector is directly installed on the kettle for processing DBU products, and the installation structure is relatively cumbersome and requires specific tools for disassembly and assembly. At the same time, the existing oxygen content detector is directly exposed to the air, and dust will fall on the screen of the oxygen content detector. When the dust accumulates too much, it will affect the observation, and it is troublesome to clean the dust. Therefore, we propose an oxygen content detector to solve the above problems. Utility Model Content

[0004] The purpose of the present utility model is to provide an oxygen content detector to solve the problems of the existing oxygen content detector proposed in the above background technology, which is not convenient to be installed on the bypass of the vacuum pipeline to increase the service life, and is not convenient to support, and dust easily falls on the screen to affect viewing.

[0005] To achieve the above object, the utility model provides the following technical solution: an oxygen content detector, comprising: a detector body, an exhaust pipe having a conveying function fixedly connected to the right end of the detector body, and an air intake pipe fixedly connected to the left end of the detector body;

[0006] Also includes:

[0007] The left side of the exhaust pipe is provided with a support structure and a protective structure, wherein the support structure includes a support plate, a connecting ear, a connecting platform, a mounting slot, a spring and a limit block, and the protective structure includes a threaded rod, a protective plate and a long slot;

[0008] Valves are installed on both the air intake pipe and the exhaust pipe, and the left end of the air intake pipe is rotatably connected to a mounting cylinder, and the left end of the mounting cylinder is threadedly connected to the right end of the bypass branch pipe.

[0009] Preferably, a support block is embedded and connected at an equal angle to the bottom end of the detector body, and the support block is snap-connected to the inside of the connecting groove, and the connecting groove is opened inside the front upper end of the support plate.

[0010] Preferably, the rear end of the support plate is symmetrically integrated with a connecting ear, and the inner end of the connecting ear is overlapped and connected to the connecting platform, and the inside of the connecting platform is symmetrically provided with an installation groove, wherein a spring is fixedly connected to the inside of the installation groove.

[0011] Preferably, the outer end of the spring is fixedly connected to the limiting block, and the limiting block is slidably connected to the inside of the mounting groove, and the outer end of the limiting block is nested and connected in the hollow structure of the connecting ear.

[0012] Preferably, the sum of the thickness of the limiting block and the minimum expansion and contraction state of the spring is equal to the depth of the installation groove.

[0013] Preferably, the threaded rod is rotatably connected to the rear upper end of the support plate, and the threaded rod is threadedly connected to the rear end of the protective plate, and the rear end of the protective plate is slidably connected to the interior of the long slot;

[0014] The long slot is opened in the front wall of the connecting slot, and the protective plate is in a lifting structure on the connecting slot through the threaded rod and the long slot, and the diameter of the front end of the protective plate is equal to the upper end diameter of the detector body.

[0015] Preferably, a connecting ring is embedded in the left middle end of the bypass branch pipe, and a vacuum pipeline is fixedly connected to the left end of the bypass branch pipe. At the same time, the vacuum pipeline is connected to the detector body through the bypass branch pipe and the air intake pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the oxygen content detector is easy to install on the bypass of the vacuum pipeline to increase the service life, and is convenient to support, while preventing dust from falling on the screen and affecting viewing;

[0017] 1. A bypass branch pipe and a mounting tube are provided. The left end of the mounting tube is threadedly connected to the right end of the bypass branch pipe. The mounting tube is used to define the position of the air inlet pipe, and the detector body is installed on the vacuum pipeline.

[0018] After the third vacuum nitrogen replacement, the gas is allowed to pass through the bypass branch pipe and the air inlet pipe into the interior of the detector body for measurement, so that it is easy to install on the bypass of the vacuum pipeline to increase the service life;

[0019] 2. A support plate and a connecting ear are provided. The outer end of the limit block is nested and connected in the hollow structure of the connecting ear. The detector body is placed on the upper end of the support plate. The detector body is limited by the support blocks and connecting grooves set at equal angles.

[0020] After the upper and lower sets of connecting ears are overlapped on the connecting platform, the upper and lower sets of springs drive the limit blocks to slide toward the outer end inside the installation groove until the limit blocks symmetrically arranged above and below are nested and connected to the connecting ears at the corresponding positions. The position of the support plate on the connecting platform is limited by the connecting ears and the limit blocks, thereby facilitating support;

[0021] 3. A threaded rod and a protective plate are provided. The protective plate is structurally designed through the threaded rod and the long slot on the connecting slot so that when the threaded rod rotates, the rear end of the protective plate slides downward inside the long slot until the front end of the protective plate covers the upper end of the detector body, thereby preventing dust from falling on the screen and affecting viewing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the right side cross-sectional structure of the connection between the limit block and the connecting ear of the utility model;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model from above;

[0025] Figure 4 This is a schematic diagram of the overall structure of the connection between the installation cylinder and the bypass branch pipe of the utility model;

[0026] Figure 5 This is a schematic diagram of the overall structure of the connection between the threaded rod and the protective plate of the utility model;

[0027] Figure 6 This is a structural schematic diagram of the protective plate of the utility model in the lowered state.

[0028] In the figure: 1. Detector body; 2. Exhaust pipe; 3. Inlet pipe; 4. Valve; 5. Support block; 6. Connecting groove; 7. Support plate; 8. Threaded rod; 9. Protective plate; 10. Long groove; 11. Connecting ear; 12. Connecting platform; 13. Mounting groove; 14. Spring; 15. Limit block; 16. Mounting cylinder; 17. Bypass branch pipe; 18. Connecting ring; 19. Vacuum pipeline. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-6The utility model provides a technical solution: an oxygen content detector, including a detector body 1, an exhaust pipe 2, an intake pipe 3, a valve 4, a support block 5, a connecting groove 6, a support plate 7, a threaded rod 8, a protective plate 9, a long groove 10, a connecting ear 11, a connecting platform 12, an installation groove 13, a spring 14, a limit block 15, an installation cylinder 16, a bypass branch 17, a connecting ring 18 and a vacuum pipeline 19.

[0031] Example 1: The existing oxygen content detector is directly installed on the kettle of DBU product processing. Long-term use will reduce its lifespan. Therefore, this embodiment adopts the following technical solutions, such as Figure 1 and Figure 4 , since the left end of the intake pipe 3 is rotatably connected to the mounting cylinder 16, the left end of the mounting cylinder 16 is threadedly connected to the right end of the bypass branch 17, and the vacuum pipeline 19 is connected to the detector body 1 through the bypass branch 17 and the intake pipe 3, the left end of the intake pipe 3 is placed on the right side of the bypass branch 17, and the mounting cylinder 16 is rotated to be threadedly connected to the right end of the bypass branch 17, so that the left end of the mounting cylinder 16 is fitted on the right end of the connecting ring 18, and the position of the intake pipe 3 on the vacuum pipeline 19 is limited. The detector body 1 is installed on the bypass of the vacuum pipeline 19. When the oxygen content is high at the beginning, the valve 4 is not opened. When the oxygen content is low during the third replacement, the valve 4 on the intake pipe 3 is opened to allow the gas to enter the interior of the detector body 1 through the vacuum pipeline 19, the bypass branch pipe 17, and the intake pipe 3. The detector body 1 measures the oxygen content in the gas, and the measurement result is displayed on the screen at the upper end of the detector body 1. Then, the valve 4 on the exhaust pipe 2 is opened to allow the gas to be discharged, thereby facilitating installation on the bypass of the vacuum pipeline 19 and increasing the service life.

[0032] Example 2: The existing oxygen content detector is directly installed on the kettle of DBU product processing. The installation structure is relatively troublesome and requires special tools for disassembly and assembly. Therefore, this embodiment adopts the following technical solutions, such as Figure 1 、 Figure 2 and Figure 3, since the supporting structure includes a supporting plate 7, a connecting ear 11, a connecting platform 12, a mounting groove 13, a spring 14 and a limit block 15, the supporting block 5 is snap-fitted and connected to the inside of the connecting groove 6, the mounting groove 13 is symmetrically opened inside the connecting platform 12, the limit block 15 is slidably connected to the inside of the mounting groove 13, and the outer end of the limit block 15 is nested and connected to the hollow structure of the connecting ear 11. The sum of the thickness of the limit block 15 and the minimum expansion state of the spring 14 is equal to the depth of the mounting groove 13, so the supporting plate 7 is placed on the lower side of the detector body 1 to drive the supporting plate 7 to move upward. The support plate 7 rises, allowing the support blocks 5 set at equal angles to be engaged and connected in the connecting grooves 6 at corresponding positions, and the connecting ears 11 symmetrically set up above and below are overlapped at the upper and lower ends of the connecting platform 12, so that the hollow structure of the connecting ears 11 corresponds to the position of the mounting grooves 13. The upper and lower sets of springs 14 drive the limit blocks 15 to slide toward the outer ends inside the mounting grooves 13 until the outer ends of the limit blocks 15 are nested and connected in the hollow structure of the connecting ears 11 at corresponding positions. The support plate 7 is limited on the processing device by the connecting ears 11 and the limit blocks 15, thereby facilitating support.

[0033] Example 3: The existing oxygen content detector is directly exposed to the air, and dust will fall on the screen of the oxygen content detector. When the dust accumulates too much, it will affect the viewing. It is troublesome to clean the dust. Therefore, this embodiment adopts the following technical solutions, such as Figure 1 、 Figure 2 、 Figure 5 and Figure 6 Since the protective structure includes a threaded rod 8, a protective plate 9 and a long slot 10, the rear end of the protective plate 9 is slidably connected to the inside of the long slot 10, and the protective plate 9 is in a lifting structure on the connecting slot 6 through the threaded rod 8 and the long slot 10. The diameter of the front end of the protective plate 9 is equal to the diameter of the upper end of the detector body 1. Therefore, when the detector body 1 is not in use, the threaded rod 8 can be rotated to rotate on the upper end of the support plate 7, so that the rear end of the protective plate 9 slides downward inside the long slot 10 until the lower end of the protective plate 9 is attached to the upper end of the detector body 1, so that the front end of the protective plate 9 protects the upper end of the detector body 1, thereby preventing dust from falling on the screen and affecting viewing. The above electrical components are all existing technologies and will not be described in detail here.

[0034] The standard parts used in this utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Oxygen content detector, including: The detector body (1) is fixedly connected to the right end of the detector body (1) with an exhaust pipe (2) for conveying air, and the left end of the detector body (1) is fixedly connected to an air intake pipe (3); It is characterized by further comprising: A support structure and a protective structure are respectively provided on the left side of the exhaust pipe (2), wherein the support structure includes a support plate (7), a connecting ear (11), a connecting platform (12), a mounting groove (13), a spring (14) and a limit block (15), and the protective structure includes a threaded rod (8), a protective plate (9) and a long groove (10); The air intake pipe (3) and the exhaust pipe (2) are both installed with valves (4), and the left end of the air intake pipe (3) is rotatably connected to a mounting cylinder (16), and the left end of the mounting cylinder (16) is threadedly connected to the right end of the bypass branch pipe (17).

2. The oxygen content detector according to claim 1, characterized in that: The bottom end of the detector body (1) is inlaid with a support block (5) at an equal angle, and the support block (5) is snap-connected to the inside of the connection groove (6), and the connection groove (6) is opened inside the front upper end of the support plate (7).

3. The oxygen content detector according to claim 2, characterized in that: The rear end of the support plate (7) is integrally connected with a connecting ear (11) in a vertically symmetrical manner, and the inner end of the connecting ear (11) is overlapped and connected to the connecting platform (12), and the interior of the connecting platform (12) is provided with a mounting groove (13) in a vertically symmetrical manner, wherein a spring (14) is fixedly connected to the interior of the mounting groove (13).

4. The oxygen content detector according to claim 3, characterized in that: The outer end of the spring (14) is fixedly connected to the limiting block (15), and the limiting block (15) is slidably connected to the inside of the installation groove (13), and the outer end of the limiting block (15) is nested and connected in the hollow structure of the connecting ear (11).

5. The oxygen content detector according to claim 4, characterized in that: The sum of the thickness of the limit block (15) and the minimum expansion and contraction state of the spring (14) is equal to the depth of the installation groove (13).

6. The oxygen content detector according to claim 1, characterized in that: The threaded rod (8) is rotatably connected to the rear upper end of the support plate (7), and the threaded rod (8) is threadedly connected to the rear end of the protective plate (9), and the rear end of the protective plate (9) is slidably connected to the interior of the long slot (10); The long slot (10) is formed in the front wall of the connecting slot (6), and the protective plate (9) is arranged in a lifting structure on the connecting slot (6) through the threaded rod (8) and the long slot (10), and the diameter of the front end of the protective plate (9) is equal to the diameter of the upper end of the detector body (1).

7. The oxygen content detector according to claim 1, characterized in that: The left middle end of the bypass branch pipe (17) is inlaid with a connecting ring (18), and the left end of the bypass branch pipe (17) is fixedly connected to a vacuum pipeline (19). At the same time, the vacuum pipeline (19) is connected to the detector body (1) through the bypass branch pipe (17) and the air inlet pipe (3).

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