Automatic online detection device for exhaust equipment

By designing an automated online detection device, using the mechanical structure of the baffle and the shielding disc, the problem of fire spreading when the detector catches fire is solved, and the effect of effectively preventing the spread of fire and improving safety is achieved.

CN119555872APending Publication Date: 2025-03-04SUZHOU UNIV OF SCI & TECH
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Patent Information

Application Number
CN202411642967.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-03-04

AI Technical Summary

Technical Problem

During the use of exhaust gas detection instruments, there is a short circuit and fire. If it cannot be discovered in time, the fire may spread along the wires, resulting in more serious fires.

Method used

An automated online detection device for exhaust equipment is designed, including a detector body, a plug assembly, a cylinder and a shielding disc. When the detector body catches fire, the baffle releases the limit on the plug assembly, and the plug assembly retracts back into the cylinder, and the blocking disc action covers the cylinder to prevent the fire from spreading.

Benefits of technology

It effectively avoids the fire on the detector body spreading outward along the plug assembly, prevents greater losses, and prevents the sealing effect of the shielding disc to avoid contact with water accumulation, improving safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of waste gas detection, and relates to an automatic online detection device for exhaust equipment. The detector comprises a detector body, and a plug assembly, a cylinder and a shielding disc which supply power to the detector body. An opening is formed in the upper end of the barrel, the plug assembly is arranged in the barrel in an up-down elastic moving mode, a baffle is rotationally connected to the sliding block, and the baffle is matched with the plug assembly; one side of the shielding disc is elastically and rotationally installed on the vertical shaft, and a triggering assembly is arranged on the barrel. When the detector body catches fire, the sliding block moves close to the plug assembly, then the baffle rotates outwards to release limiting of the plug assembly, and the plug assembly moves downwards to be separated from the detector body. And the fire behavior on the detector body is prevented from spreading outwards along the plug assembly, so that greater loss is avoided. And meanwhile, the vertical shaft moves upwards, and the shielding disc is separated from the limitation of the cylinder body and rotates to the upper end face of the cylinder body to block the cylinder body. Contact between the insertion piece and accumulated water is avoided, electric shock accidents are prevented, and safety is improved.
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Description

Technical Field

[0001] The invention belongs to the technical field of exhaust gas detection and relates to an automatic online detection device for exhaust equipment. Background Art

[0002] The automated online detection device for exhaust equipment is mainly used to monitor and analyze the emission of industrial waste gas in real time, timely grasp the changes in the composition and emission of waste gas, and help enterprises adjust production processes and equipment in time to avoid excessive emissions.

[0003] In the process of automatic online detection of exhaust gas, exhaust gas detection instruments are needed. During the use of exhaust gas detection instruments, there is a possibility of short circuit and fire. If it is not discovered in time, the fire will spread along the power supply wires, expand the fire, and cause a more serious fire.

[0004] In order to solve the above problems, the present invention proposes an automatic online detection device for exhaust equipment. Summary of the invention

[0005] In order to solve the problems existing in the background technology, the present invention proposes an automatic online detection device for exhaust equipment.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] An automated online detection device for exhaust equipment comprises a detector body and a plug assembly for powering the detector body, and also comprises a cylinder with an opening at the upper end and a shielding disk; the plug assembly is elastically movably arranged in the cylinder body, a baffle is rotatably arranged in the cylinder body, and the baffle cooperates with the plug assembly; the shielding disk is elastically rotatably mounted on one side of the cylinder body; a trigger assembly is arranged on the cylinder body; when the detector body catches fire, the baffle releases the limit on the plug assembly, the plug assembly retracts into the cylinder body, and at the same time the shielding disk is actuated to cover the cylinder body.

[0008] Furthermore, the trigger assembly includes a piston plate, a accommodating chamber is provided on the side wall of the cylinder, the piston plate is elastically and sealingly slidably arranged in the accommodating chamber, a third chamber filled with a thermal expansion and contraction medium is provided in the accommodating chamber above the piston plate, the accommodating chamber above the piston plate is filled with non-flammable oil, and an oil outlet hole is provided on the top wall of the accommodating chamber; a through hole is provided on the inner wall of the accommodating chamber close to the axis of the cylinder, a sliding block is sealingly and slidably connected to the through hole, and the baffle is rotatably connected to the sliding block; a first sliding groove is provided on the side wall of the accommodating chamber away from the axis of the cylinder, and a sliding plate that blocks the first sliding groove is sealingly and slidably arranged on the outer wall of the cylinder, and the sliding plate and the piston plate are fixedly connected by a connecting block; a vertical axis is fixed on the sliding plate, and one side of the shielding disk is elastically rotatably mounted on the vertical axis; the piston plate and the sliding block are arranged in coordination.

[0009] Furthermore, the piston plate divides the accommodating cavity into a first cavity and a second cavity, the first cavity is located above the piston plate, and the side of the first cavity close to the axis of the cylinder is a heat-conducting layer; an elastic membrane is provided on the side of the first cavity close to the heat-conducting layer, and a closed third cavity is enclosed between the elastic membrane and the heat-conducting layer.

[0010] Furthermore, a connecting channel is opened on the piston plate, and the connecting channel is connected with the second cavity; the connecting channel passes through the outer wall of the cylinder body and is connected to an atomizing nozzle through a connecting pipe, and the atomizing nozzle faces the shielding disk.

[0011] Furthermore, the first cavity penetrates the upper end surface of the cylinder, the upper end of the first cavity is fixedly connected to the second rubber pad, and the oil outlet hole is opened on the second rubber pad.

[0012] Furthermore, a first rubber pad is provided on the lower end surface of the shielding plate.

[0013] Furthermore, a first limiting block is provided on one side of the shielding plate close to the vertical axis.

[0014] Furthermore, the plug assembly includes an insert, a fixing seat and a transmission line; the insert is arranged on the upper end surface of the fixing seat, one end of the transmission line passes through the bottom wall of the cylinder and is connected to the fixing seat, and a second spring is fixedly connected between the fixing seat and the bottom wall of the cylinder; the baffle cooperates with the fixing seat.

[0015] Furthermore, the fixing seat is fixedly connected with a connecting rod, the connecting rod is fixedly connected with a magnet ring, and the magnet ring has an adsorption effect with the detector body.

[0016] Furthermore, there are two baffles, both of which are V-shaped, and the two baffles are arranged on both sides of the fixed seat; a sliding column is fixed at the corner of each baffle, and a guide block that slides with the sliding column is fixedly connected to the inner wall of the cylinder.

[0017] Furthermore, a first spring is fixedly connected between the piston plate and the top wall of the first cavity.

[0018] Compared with the prior art, the present invention has the following beneficial effects: when the detector body catches fire, the first baffle and the second baffle open outward, and the fixed seat moves into the cylinder under the action of the second spring, thereby causing the plug to separate from the detector body, and the cylinder and the plug assembly to fall downward, thereby preventing the fire on the detector body from spreading outward along the plug assembly, thereby avoiding causing greater losses.

[0019] The piston plate moves upward, and the shielding disk and the first limit block move upward. After the first limit block loses the limit of the cylinder, the shielding disk rotates to the top of the cylinder to shield the cylinder. The plug assembly is in the closed cylinder. In this way, when the cylinder falls to a place with accumulated water, the plug is prevented from contacting the accumulated water, thereby preventing electric shock accidents and improving safety.

[0020] The piston plate moves upward, and the oil in the first cavity flows out through the oil outlet hole, thereby increasing the sealing performance between the first rubber pad and the second rubber pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention in the first direction;

[0022] Figure 2 is a schematic diagram of the overall structure of the present invention in the second direction;

[0023] Figure 3 It is a structural schematic diagram of the cylinder in the present invention;

[0024] Figure 4 It is a schematic diagram of the internal structure of the cylinder in the present invention;

[0025] Figure 5 The present invention Figure 4 An enlarged view of the third cavity portion;

[0026] Figure 6 is a cross-sectional view of the cylinder in the present invention;

[0027] Figure 7 It is a schematic structural diagram of the first baffle and the second baffle in the present invention.

[0028] In the figure: 1. detector body; 2. cylinder; 3. transmission line; 4. sliding plate; 5. atomizing nozzle; 6. first rubber pad; 7. shielding plate; 8. first limit block; 9. vertical axis; 10. second rubber pad; 11. magnet ring; 12. insert; 13. fixing seat; 14. oil outlet; 15. first spring; 16. first cavity; 17. piston plate; 18. second cavity; 19. second spring; 20. first baffle; 21. second baffle; 22. sliding block; 23. connecting plate; 24. third spring; 25. connecting channel; 26. first slide groove; 27. guide block; 28. sliding column; 29. ​​connecting rod; 30. heat conductive layer; 31. elastic membrane; 32. third cavity. 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0030] like Figure 1-Figure 7 An automatic online detection device for exhaust equipment is shown.

[0031] Embodiment 1: The technical solution adopted by the present invention is as follows: An automatic online detection device for exhaust equipment includes a detector body 1, a plug assembly, a cylinder 2 and a shielding plate 7.

[0032] The detector body 1 is an intelligent exhaust gas detection device, which is a prior art and will not be described in detail here. The detector body 1 is fixed on the wall.

[0033] The upper end of the cylinder 2 is open, and the plug assembly is elastically movable up and down inside the cylinder 2. The detector body 1 is connected to an external power source through the plug assembly. The plug assembly includes a plug 12, a fixed seat 13 and a transmission line 3. The plug 12 is fixed on the upper end surface of the fixed seat 13, one end of the transmission line 3 is connected to the fixed seat 13, and the other end of the transmission line 3 passes through the bottom wall of the cylinder 2 and extends to the outside. A second spring 19 is fixedly connected between the fixed seat 13 and the bottom wall of the cylinder 2. The fixed seat 13 is fixedly connected to a connecting rod 29, and the connecting rod 29 is fixedly connected to a magnet ring 11, and the magnet ring 11 is coaxially arranged with the cylinder 2.

[0034] During normal use, the upper end of the plug 12 extends outside the cylinder 2 and is inserted into the socket of the detector body 1. The magnet ring 11 is adsorbed onto the detector body 1. This allows the plug assembly to be stably connected to the detector body 1. When the detector body 1 catches fire, the plug assembly is separated from the detector body 1 and retracted into the cylinder 2.

[0035] A sliding block 22 is elastically slidably connected to the inner wall of the cylinder 2, and a baffle is rotatably connected to the sliding block 22. The baffle is located on the lower end surface of the fixed seat 13 and has a blocking effect on the fixed seat 13 to prevent the insert 12 from retracting into the cylinder 2 under the action of the second spring 19.

[0036] The baffle is arranged in a V shape, and there are two baffles, namely a first baffle 20 and a second baffle 21, which are arranged on both sides of the fixed seat 13. Two guide blocks 27 are fixedly connected to the inner wall of the cylinder 2, and guide grooves are provided on the guide blocks 27. A sliding column 28 is slidably arranged in the guide groove of each guide block 27, and the two sliding columns 28 correspond to the two baffles one by one, and the sliding columns 28 are fixedly connected to the corners of the corresponding baffles. The sliding block 22 is fixedly connected to the connecting plate 23, and a third spring 24 is fixedly connected between the connecting plate 23 and the inner wall of the cylinder 2.

[0037] The sliding block 22 moves toward the direction close to the axis of the cylinder 2, the baffle rotates, the sliding column 28 slides along the guide block 27 toward the inner wall of the cylinder 2, and the baffle moves away from the fixed seat 13 to release the limit of the fixed seat 13. Then the fixed seat 13 moves downward under the action of the second spring 19, so that the insert 12 is separated from the detector body 1.

[0038] A trigger assembly is provided on the cylinder 2. When a fire occurs in the detector body 1, the sliding block 22 moves toward the direction close to the axis of the cylinder 2 under the action of the trigger assembly.

[0039] The trigger assembly includes a piston plate 17. An annular accommodating chamber is provided on the side wall of the cylinder 2, and the accommodating chamber is coaxial with the cylinder 2. The piston plate 17 is sealed and slidably arranged in the accommodating chamber. The piston plate 17 divides the accommodating chamber into a first chamber 16 and a second chamber 18, wherein the first chamber 16 is located above the piston plate 17, and the second chamber 18 is located below the piston plate 17. A first spring 15 is fixedly connected between the top wall of the first chamber 16 and the piston plate 17, and the first spring 15 has a plurality of first springs 15, and the plurality of first springs 15 are evenly distributed around the circumference of the axis of the first chamber 16. A heat-conducting layer 30 is provided on the side of the first chamber 16 close to the axis of the cylinder 2. An elastic film 31 is fixedly provided on the inner wall of the first chamber 16 close to the heat-conducting layer 30, and a closed third chamber 32 is enclosed between the elastic film 31 and the heat-conducting layer 30. The third chamber 32 is filled with a medium that expands and contracts with heat. For example, the medium is kerosene. The first chamber 16 and the second chamber 18 are filled with oil that is not easy to burn. For example, the oil can be fire-resistant hydraulic oil. A through hole is provided on the accommodating cavity below the third cavity 32, and the sliding block 22 is in sealing and sliding cooperation with the through hole.

[0040] The top wall of the first cavity 16 passes through the upper end surface of the cylinder 2 . A second rubber pad 10 is fixedly installed on the top of the first cavity 16 . A plurality of oil outlet holes 14 are formed on the second rubber pad 10 .

[0041] A first slide groove 26 is provided on the inner wall of the accommodating chamber on the side away from the axis of the cylinder 2. A connecting block is provided in a sealing and sliding manner in the first slide groove 26. One side of the connecting block is fixedly connected to the piston plate 17. The other side of the connecting block is fixedly connected to the sliding plate 4. The sliding plate 4 is sealingly and slidingly provided on the outer wall of the cylinder 2. A vertical shaft 9 is fixedly connected to the sliding plate 4. One side of the shielding plate 7 is elastically rotatably connected to the vertical shaft 9. Specifically, a torsion spring is sleeved on the vertical shaft 9. One end of the torsion spring is fixedly connected to the shielding plate 7, and the other end of the torsion spring is fixedly connected to the vertical shaft 9.

[0042] The shielding plate 7 is fixedly connected to the side close to the vertical axis 9 with a first stopper 8. The first stopper 8 abuts against the outer wall of the cylinder 2, so that the shielding plate 7 is on one side of the cylinder 2, and the torsion spring is in an elastic deformation state. The sliding plate 4 moves upward, the shielding plate 7, the first stopper 8 and the vertical axis 9 move upward, and the lower end face of the first stopper 8 moves above the plane where the upper end face of the cylinder 2 is located, and then the shielding plate 7 rotates to the top of the cylinder 2 under the action of the torsion spring and blocks the upper end face of the cylinder 2.

[0043] The lower end surface of the shielding plate 7 is fixedly connected with a first rubber pad 6 . When the shielding plate 7 covers the cylinder body 2 , the first rubber pad 6 helps to increase the sealing between the shielding plate 7 and the cylinder body 2 .

[0044] Working principle: Initially, under the action of the third spring 24, part of the sliding block 22 extends into the first cavity 16. The first baffle 20 and the second baffle 21 abut against the lower end surface of the fixed seat 13, the second spring 19 is in a stretched state, and the insert 12 extends to the outside of the cylinder 2. The first spring 15 is in a stretched state, and the piston plate 17 abuts against the lower end surface of the sliding block 22. The torsion spring is in an elastic deformation state, the first limit block 8 abuts against the outer wall of the cylinder 2, and the shielding plate 7 is on one side of the cylinder 2.

[0045] When in use, the inserting piece 12 is inserted into the socket of the detector body 1. At this time, the magnetic ring 11 is adsorbed on the detector body 1, and the upper end surface of the heat conductive layer 30 and the second rubber pad 10 are closely attached to the detector body 1.

[0046] When the detector body 1 is on fire, the temperature of the detector body 1 rises, and the heat on the detector body 1 is transferred to the third cavity 32 through the heat-conducting layer 30. The thermal expansion and contraction medium in the third cavity 32 expands and becomes larger, and the elastic membrane 31 is stretched and deformed. The volume of the third cavity 32 increases, and the oil in the first cavity 16 is squeezed. At this time, since the second cavity 18 is also full of oil, it is difficult for the piston plate 17 to move downward. The second rubber pad 10 fits tightly with the detector body 1, and the oil in the first cavity 16 cannot be discharged through the oil outlet 14. Therefore, the sliding block 22 overcomes the elastic force of the third spring 24 and moves in the direction close to the axis of the cylinder 2. The sliding column 28 slides in the corresponding guide block 27, and the first baffle 20 and the second baffle 21 both move in the direction away from the fixed seat 13, and the first baffle 20 and the second baffle 21 open, and then the first baffle 20 and the second baffle 21 are separated from the fixed seat 13. After the first baffle 20 and the second baffle 21 are no longer limited, under the action of the second spring 19, the magnet ring 11, the connecting rod 29, the fixing seat 13 and the plug 12 move downward, and then the plug 12 is pulled out of the socket on the detector body 1. The plug 12 is separated from the detector body 1, and the plug 12 is retracted into the cylinder 2, and the magnet ring 11 is separated from the detector body 1. The cylinder 2, the plug assembly and the shielding plate 7 all fall downward.

[0047] The plug 12 is separated from the detector body 1, so as to prevent the fire on the detector body 1 from spreading outward along the plug assembly and causing greater losses.

[0048] The sliding block 22 moves toward the direction close to the axis of the cylinder 2, thereby releasing the limit on the piston plate 17. Under the action of the first spring 15, the piston plate 17 moves upward, and the oil in the first cavity 16 flows out through the oil outlet 14. The sliding plate 4, the vertical shaft 9, the first limit block 8 and the shielding plate 7 move upward synchronously until the connecting block abuts against the upper side of the first slide groove 26. At this time, the piston plate 17 contacts the side of the sliding block 22 close to the first slide groove 26, and the first limit block 8 moves to the upper side of the plane where the upper end of the cylinder 2 is located, and the first limit block 8 loses the limit of the cylinder 2. Under the action of the torsion spring, the shielding plate 7 rotates toward the top of the cylinder 2 until the shielding plate 7 blocks the upper end surface of the cylinder 2, thereby sealing the plug assembly in the cylinder 2. In this way, when the cylinder 2 falls into a place with accumulated water, the plug 12 is prevented from contacting the accumulated water, preventing electric shock accidents and improving safety.

[0049] During the rotation of the shielding plate 7 toward the cylinder 2, the first rubber pad 6 contacts the upper end surface of the second rubber pad 10, thereby evenly smearing the oil on the second rubber pad 10. The oil can enhance the sealing performance between the first rubber pad 6 and the second rubber pad 10.

[0050] When the insert 12 needs to be reconnected to the detector body 1, the cylinder 2 needs to be reset. At this time, since the piston plate 17 is in conflict with the side of the sliding block 22 close to the first slide groove 26, the first baffle 20 and the second baffle 21 are still in an open state. Turn the shielding plate 7 so that the shielding plate 7 and the first limit block 8 are both on one side of the cylinder 2. After that, pull the fixed seat 13 upward for a certain distance. Then press the shielding plate 7 downward, the shielding plate 7, the vertical axis 9, and the sliding plate 4 move downward, and the sliding plate 4 drives the piston plate 17 to move downward through the connecting block. When the piston plate 17 moves to the bottom of the sliding block 22, under the action of the third spring 24, the sliding block 22 moves into the first cavity 16, and the first baffle 20 and the second baffle 21 both move in the direction close to the axis of the cylinder 2, releasing the pulling force on the fixed seat 13, and the lower end surface of the fixed seat 13 abuts against the first baffle 20 and the second baffle 21. The shielding plate 7 and the plug assembly are restored to their initial states, and then oil can be added to the first cavity 16 .

[0051] Then, insert the insert piece 12 into the socket on the detector body 1 .

[0052] Embodiment 2: This embodiment is an improvement on the basis of Embodiment 1. In this embodiment, only the different parts from Embodiment 1 are introduced.

[0053] A connecting passage 25 is provided on the piston plate 17, and one end of the connecting passage 25 passes through the cylinder 2 and the sliding plate 4 in sequence and then is connected to a connecting pipe. The connecting pipe is mounted on the sliding plate 4, and an atomizing nozzle 5 is mounted on the end of the connecting pipe away from the cylinder 2, and the atomizing nozzle 5 is opposite to the first rubber pad 6.

[0054] When the piston plate 17 moves to the bottom of the sliding block 22, the sliding plate 4 continues to move downward, and the piston plate 17 squeezes the oil in the second cavity 18, so that the oil in the second cavity 18 is sprayed out through the connecting channel 25 and the atomizing nozzle 5, and the atomizing nozzle 5 sprays the oil onto the first rubber pad 6. A protective film is formed at the bottom of the first rubber pad 6, so that the bottom surface of the first rubber pad 6 is isolated from the outside, so that the dust from the outside will stick to the protective film at the bottom of the first rubber pad 6. At the same time, the aging of the first rubber pad 6 can be slowed down, and the service life of the first rubber pad 6 can be extended.

[0055] When the shielding plate 7 rotates upwardly toward the cylinder 2, the upper side edge of the cylinder 2 contacts the bottom surface of the first rubber pad 6, scraping and cleaning the protective film on the bottom surface of the first rubber pad 6, so that the bottom surface of the first rubber pad 6 is in a clean state and contacts with the second rubber pad 10, thereby increasing the sealing between the first rubber pad 6 and the second rubber pad 10.

[0056] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 protection scope of the present invention.

Claims

1. An automatic online detection device for exhaust equipment, comprising a detector body (1) and a plug assembly for supplying power thereto, characterized in that: It also comprises a cylinder (2) with an opening at the upper end and a shielding plate (7); the plug assembly is elastically movable up and down and arranged in the cylinder (2); a baffle is rotatably arranged in the cylinder (2), and the baffle cooperates with the plug assembly; the shielding plate (7) is elastically rotatably mounted on one side of the cylinder (2); a trigger assembly is arranged on the cylinder (2); when the detector body (1) catches fire, the baffle releases the limit on the plug assembly, the plug assembly retracts into the cylinder (2), and at the same time the shielding plate (7) is actuated to cover the cylinder (2).

2. An automatic online detection device for exhaust equipment according to claim 1, characterized in that: The trigger assembly comprises a piston plate (17), a receiving cavity is provided on the side wall of the cylinder (2), the piston plate (17) is elastically sealed and slidably arranged in the receiving cavity, a third cavity (32) filled with a thermal expansion and contraction medium is provided in the receiving cavity above the piston plate (17), the receiving cavity above the piston plate (17) is filled with non-flammable oil, an oil outlet hole (14) is provided on the top wall of the receiving cavity; a through hole is provided on the inner wall of the receiving cavity close to the axis of the cylinder (2), and the through hole is sealed and slidably connected with a sliding The baffle plate (22) is rotatably connected to the sliding block (22); a first sliding groove (26) is provided on the side wall of the accommodating chamber away from the axis of the cylinder (2); a sliding plate (4) for blocking the first sliding groove (26) is sealingly and slidably provided on the outer wall of the cylinder (2); the sliding plate (4) and the piston plate (17) are fixedly connected via a connecting block; a vertical shaft (9) is fixed on the sliding plate (4), and one side of the blocking plate (7) is elastically rotatably mounted on the vertical shaft (9); the piston plate (17) and the sliding block (22) are arranged in coordination.

3. An automatic online detection device for exhaust equipment according to claim 2, characterized in that: The piston plate (17) divides the accommodating chamber into a first chamber (16) and a second chamber (18); the first chamber (16) is located above the piston plate (17); the side of the first chamber (16) close to the axis of the cylinder (2) is a heat-conducting layer (30); an elastic membrane (31) is provided on the side of the first chamber (16) close to the heat-conducting layer (30); a closed third chamber (32) is enclosed between the elastic membrane (31) and the heat-conducting layer (30).

4. The automatic online detection device for exhaust equipment according to claim 3, characterized in that: A connecting channel (25) is provided on the piston plate (17), and the connecting channel (25) is in communication with the second cavity (18); the connecting channel (25) penetrates the outer wall of the cylinder (2) and is connected to an atomizing nozzle (5) via a connecting pipe, and the atomizing nozzle (5) faces the shielding disk (7).

5. The automatic online detection device for exhaust equipment according to claim 2, characterized in that: The first cavity (16) penetrates the upper end surface of the cylinder (2); the upper end of the first cavity (16) is fixedly connected to the second rubber pad (10); and the oil outlet hole (14) is provided on the second rubber pad (10).

6. The automatic online detection device for exhaust equipment according to claim 1, characterized in that: A first rubber pad (6) is provided on the lower end surface of the shielding plate (7).

7. The automatic online detection device for exhaust equipment according to claim 1, characterized in that: A first limiting block (8) is provided on one side of the shielding plate (7) close to the vertical axis (9).

8. The automatic online detection device for exhaust equipment according to claim 1, characterized in that: The plug assembly comprises an insert (12), a fixing seat (13) and a transmission line (3); the insert (12) is arranged on the upper end surface of the fixing seat (13); one end of the transmission line (3) passes through the bottom wall of the cylinder (2) and is connected to the fixing seat (13); a second spring (19) is fixedly connected between the fixing seat (13) and the bottom wall of the cylinder (2); and the baffle cooperates with the fixing seat (13).

9. An automatic online detection device for exhaust equipment according to claim 8, characterized in that: The fixing seat (13) is fixedly connected with a connecting rod (29), the connecting rod (29) is fixedly connected with a magnetic ring (11), and the magnetic ring (11) and the detector body (1) have an adsorption effect.

10. The automatic online detection device for exhaust equipment according to claim 2, characterized in that: There are two V-shaped baffles, which are arranged on both sides of the fixed seat (13); a sliding column (28) is fixed at the corner of each baffle, and a guide block (27) that slides with the sliding column (28) is fixedly connected to the inner wall of the cylinder (2).