Opposite emission type light path mounting structure of gas sensor

Abstract

The utility model discloses a gas sensor correlation type light path installation structure which comprises a sensor, a threaded sleeve is connected to the inside of one end of the sensor through threads, a waterproof cover is fixedly connected to one side of the threaded sleeve, and according to the gas sensor correlation type light path installation structure, the threaded sleeve is driven to be in threaded connection with the sensor by rotating and screwing the waterproof cover. The design of the waterproof cover and the drainage groove can prevent rainwater from being injected into the sensor to cause damage, the service life of the sensor is prolonged, the design of the sealing ring can improve the sealing effect, and rainwater is prevented from leaking inwards from a gap between the sensor and the waterproof cover. The sensor penetrates through the mounting seat, the left nut and the right nut are rotated and screwed, the left gasket is driven to press the left sealing ring on the mounting seat, and the right gasket is driven to press the right sealing ring on the mounting seat, so that the sensor can be fixedly mounted conveniently, and the position of the sensor can be adjusted by reversely rotating the left nut and the right nut respectively, so that the extension length of the sensor can be adjusted conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of sensor devices, in particular to an installation structure of a gas sensor opposed beam optical path. Background Art

[0002] In the prior art, a TDLAS (tunable diode laser absorption spectroscopy) laser gas sensor adopts a gas chamber composed of optical lenses. The function of the gas chamber is to transmit the laser in the laser to the gas chamber, convert it into a spatially transmitted light beam, irradiate it into the atmosphere to be measured, and the light beam is output to a photodetector after passing through the gas chamber. Because it involves optical coupling, a fixed optical collimator is required to emit or receive the light beam. General optical coupling adjustment requires an external tooling, and the optical collimator is placed in the tooling for adjustment. After the adjustment is completed, it is locked and then fixed with glue.

[0003] Currently, the existing method proposes an optical adjustment and installation structure design that combines mechanical adjustment and a fixed structure with glue integrated, that is, the collimator is fixed by fixing screws, and the optical collimator is adjusted by adjusting screws. After adjustment, glue is directly applied to achieve the dual effects of mechanical fixation and glue fixation, increasing the adjustment efficiency and product reliability of the product.

[0004] For example, a rapid laser gas sensor opposed beam optical path installation structure disclosed in the authorized announcement number CN220207425U, one end of the optical collimator is inserted into the fixed structure, and the other end of the optical collimator is inserted into the fixed adjustment structure; the fixed collimator screw is arranged in the fixed adjustment structure to fix the optical collimator, the adjusting collimator screw is arranged on the end face of the fixed adjustment structure to realize the adjustment of the beam coupling efficiency, and glue is arranged between the tail of the fixed adjustment structure and the tail of the adjusting collimator screw. However, such a rapid laser gas sensor opposed beam optical path installation structure is not convenient for preventing water ingress and is not convenient for adjusting the sensor extension length.

[0005] It can be seen from the solutions disclosed in the above-mentioned prior patent documents that it is not convenient to prevent water ingress and is not convenient to adjust the sensor extension length. Therefore, the prior art needs to be improved. Content of the Utility Model

[0006] The purpose of the utility model is to provide an installation structure of a gas sensor opposed beam optical path to solve the problems of inconvenience in preventing water ingress and inconvenience in adjusting the sensor extension length.

[0007] To achieve the above object, the present utility model provides the following technical solution: A gas sensor opposed beam optical path installation structure, including a sensor. One end of the sensor is internally connected with a threaded sleeve through threads. One side of the threaded sleeve is fixedly connected with a waterproof cover. A drainage groove is arranged inside the lower end of the waterproof cover. A sealing ring is pressed on one side of the sensor. An installation seat is sleeved outside the sensor. A left sealing ring is closely attached to one side of the installation seat. A left washer is pressed on one side of the left sealing ring. A left nut is pressed on one side of the left washer. A right sealing ring is closely attached to one side of the installation seat. A right washer is pressed on one side of the right sealing ring. A right nut is pressed on one side of the right washer.

[0008] Preferably, the threaded sleeve is sleeved inside the sealing ring. A hollow structure is arranged inside the waterproof cover. By rotating and tightening the waterproof cover, the threaded sleeve is threadedly connected to the sensor, facilitating the fixed installation of the waterproof cover.

[0009] Preferably, threads are arranged on the outside of the sensor. The drainage groove is designed with an inclined structure. The designs of the waterproof cover and the drainage groove can prevent rainwater from entering the sensor internally during rainy weather and causing damage, improving the service life of the sensor.

[0010] Preferably, the waterproof cover is pressed on one side of the sealing ring. The sealing ring is made of rubber material. The design of the sealing ring can improve the sealing effect and prevent rainwater from leaking into the interior through the gap between the sensor and the waterproof cover.

[0011] Preferably, the sensor is sleeved inside the left sealing ring. The sensor is sleeved inside the left washer. By passing the sensor through the installation seat and rotating and tightening the left nut and the right nut, the left washer is driven to press the left sealing ring against the installation seat, and the right washer is driven to press the right sealing ring against the installation seat, facilitating the fixed installation of the sensor.

[0012] Preferably, the sensor is sleeved inside the right washer. The right nut is internally connected with the sensor through threads. By respectively rotating the left nut and the right nut in the reverse direction, the position of the sensor can be adjusted to adjust the extending length of the sensor.

[0013] Preferably, the left nut is internally connected with the sensor through threads. The sensor is sleeved inside the right sealing ring. The designs of the left sealing ring and the right sealing ring can increase the friction force and prevent the left nut and the right nut from loosening.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. The utility model drives a threaded sleeve to be threadedly connected with a sensor by rotating and tightening a waterproof cover, which facilitates the fixed installation of the waterproof cover. The designs of the waterproof cover and the drainage groove can prevent rainwater from entering the interior of the sensor during rainy weather and causing damage, thereby increasing the service life of the sensor. The design of the sealing ring can improve the sealing effect and prevent rainwater from leaking into the interior through the gap between the sensor and the waterproof cover.

[0016] 2. The utility model passes the sensor through the mounting seat, rotates and tightens the left nut and the right nut, drives the left washer to press the left sealing ring against the mounting seat, and drives the right washer to press the right sealing ring against the mounting seat, which facilitates the fixed installation of the sensor. By respectively rotating the left nut and the right nut in the reverse direction, the position of the sensor can be adjusted so as to adjust the protruding length of the sensor. The designs of the left sealing ring and the right sealing ring can increase the friction force and prevent the left nut and the right nut from loosening. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 is a cross-sectional view of the waterproof cover of the utility model;

[0019] Figure 3 is an enlarged cross-sectional view of the waterproof cover of the utility model;

[0020] Figure 4 is a left-side view of the left washer of the utility model.

[0021] In the figure: 1 sensor, 11 threaded sleeve, 12 waterproof cover, 13 drainage groove, 14 sealing ring, 2 mounting seat, 21 left sealing ring, 22 left washer, 23 left nut, 24 right sealing ring, 25 right washer, 26 right nut. Detailed Embodiment

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4, A gas sensor opposed-beam optical path installation structure in the illustration, including sensor 1. Inside one end of sensor 1, there is a threaded sleeve 11 connected by threads. On one side of the threaded sleeve 11, there is a waterproof cover 12 fixedly connected. Inside the lower end of the waterproof cover 12, there is a drainage groove 13. On one side of sensor 1, there is a sealing ring 14 pressed tightly. Outside sensor 1, there is an installation seat 2 sleeved. On one side of the installation seat 2, there is a left sealing ring 21 closely attached. On one side of the left sealing ring 21, there is a left washer 22 pressed tightly. On one side of the left washer 22, there is a left nut 23 pressed tightly. On one side of the installation seat 2, there is a right sealing ring 24 closely attached. On one side of the right sealing ring 24, there is a right washer 25 pressed tightly. On one side of the right washer 25, there is a right nut 26 pressed tightly.

[0024] For waterproofing, the threaded sleeve 11 is sleeved inside the sealing ring 14. The waterproof cover 12 has a hollow structure inside. By rotating and tightening the waterproof cover 12, the threaded sleeve 11 is threadedly connected to sensor 1, facilitating the fixed installation of the waterproof cover 12. There are threads on the outside of sensor 1. The drainage groove 13 is designed with an inclined structure. The designs of the waterproof cover 12 and the drainage groove 13 can prevent rainwater from entering the inside of sensor 1 during rainy weather and causing damage, improving the service life of sensor 1. On one side of the sealing ring 14, there is a waterproof cover 12 pressed tightly. The sealing ring 14 is made of rubber material. The design of the sealing ring 14 can improve the sealing effect and prevent rainwater from leaking into the inside through the gap between sensor 1 and the waterproof cover 12.

[0025] To facilitate the adjustment of the position of sensor 1, sensor 1 is sleeved inside the left sealing ring 21, and sensor 1 is sleeved inside the left washer 22. By passing sensor 1 through the installation seat 2 and rotating and tightening the left nut 23 and the right nut 26, the left washer 22 is driven to press the left sealing ring 22 tightly against the installation seat 2, and the right washer 25 is driven to press the right sealing ring 24 tightly against the installation seat 2, facilitating the fixed installation of sensor 1. Sensor 1 is sleeved inside the right washer 25, and the right nut 26 is threadedly connected to sensor 1 inside. By respectively rotating the left nut 23 and the right nut 26 in the reverse direction, the position of sensor 1 can be adjusted to adjust the extended length of sensor 1. The left nut 23 is threadedly connected to sensor 1 inside, and sensor 1 is sleeved inside the right sealing ring 24. The designs of the left sealing ring 21 and the right sealing ring 24 can increase the friction force and prevent the left nut 23 and the right nut 26 from loosening.

[0026] The installation structure of the transmissive optical path of the gas sensor drives the threaded sleeve 11 to be threadedly connected to the sensor 1 by rotating and tightening the waterproof cover 12, which facilitates the fixed installation of the waterproof cover 12. The design of the waterproof cover 12 and the drainage groove 13 can prevent rainwater from entering the interior of the sensor 1 during rainy weather and causing damage, improving the service life of the sensor 1. The design of the sealing ring 14 can improve the sealing effect and prevent rainwater from leaking into the interior through the gap between the sensor 1 and the waterproof cover 12; by passing the sensor 1 through the mounting seat 2 and rotating and tightening the left nut 23 and the right nut 26, the left washer 22 is driven to press the left sealing ring 22 against the mounting seat 2, and the right washer 25 is driven to press the right sealing ring 24 against the mounting seat 2, which facilitates the fixed installation of the sensor 1. By respectively rotating the left nut 23 and the right nut 26 in the reverse direction, the position of the sensor 1 can be adjusted so as to adjust the protruding length of the sensor 1. The design of the left sealing ring 21 and the right sealing ring 24 can increase the friction force and prevent the left nut 23 and the right nut 26 from loosening.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas sensor opposing optical path installation structure, comprising a sensor (1), characterized in that: A threaded sleeve (11) is connected to one end of the sensor (1) through a thread, a waterproof cover (12) is fixedly connected to one side of the threaded sleeve (11), a drainage groove (13) is arranged inside the lower end of the waterproof cover (12), a sealing ring (14) is pressed on one side of the sensor (1), a mounting seat (2) is sleeved on the outer side of the sensor (1), a left sealing ring (21) is tightly attached to one side of the mounting seat (2), a left washer (22) is tightly attached to one side of the left sealing ring (21), a left nut (23) is tightly attached to one side of the left washer (22), a right sealing ring (24) is tightly attached to one side of the mounting seat (2), a right washer (25) is tightly attached to one side of the right sealing ring (24), and a right nut (26) is tightly attached to one side of the right washer (25).

2. A gas sensor opposing optical path installation structure according to claim 1, characterized in that: The interior of the sealing ring (14) is sleeved with the threaded sleeve (11), and the interior of the waterproof cover (12) is provided with a hollow structure.

3. The gas sensor opposing optical path installation structure according to claim 1, characterized in that: The outer side of the sensor (1) is provided with a thread, and the drainage groove (13) adopts an inclined structural design.

4. The gas sensor opposing optical path installation structure according to claim 1, characterized in that: A waterproof cover (12) is pressed tightly against one side of the sealing ring (14), and the sealing ring (14) is made of rubber material.

5. The gas sensor opposing optical path installation structure according to claim 1, characterized in that: The left sealing ring (21) is sleeved with a sensor (1) inside, and the left gasket (22) is sleeved with a sensor (1) inside.

6. The gas sensor opposing optical path installation structure according to claim 1, characterized in that: The interior of the right washer (25) is sleeved with the sensor (1), and the interior of the right nut (26) is connected to the sensor (1) via threads.

7. The gas sensor opposing optical path installation structure according to claim 1, characterized in that: The interior of the left nut (23) is connected to the sensor (1) via a thread, and the interior of the right sealing ring (24) is sleeved with the sensor (1).

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