Carbon monoxide gas sensor

Abstract

The utility model relates to the technical field of gas sensors, and discloses a carbon monoxide gas sensor, which comprises a shell, a detection mechanism and a connecting line, one end of the connecting line is connected with a terminal interface in the shell, the detection mechanism comprises a fixed plate, a carbon monoxide probe unit and a mounting plate, the fixing plate is preset at a position needing to be detected and used for being connected with the mounting plate, the fixing plate is detachably connected with the mounting plate through a clamping mechanism, the mounting plate is used for mounting a carbon monoxide probe unit, a connecting port is formed in one side of the mounting plate, and the other end of the connecting wire is detachably connected with the connecting port. According to the carbon monoxide gas sensor, the fixed plate, the mounting plate and the clamping mechanism are arranged in a matched manner, so that the mounting plate and the fixed plate can be quickly detached when the carbon monoxide gas sensor needs to be replaced, and the carbon monoxide gas sensor can be quickly mounted back after the carbon monoxide gas sensor is replaced, the staying time of maintenance personnel in a mine is shortened, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas sensors, in particular to a carbon monoxide gas sensor. Background Art

[0002] Carbon monoxide is a colorless, tasteless, odorless toxic gas that is harmful to human health. At higher concentrations, it can cause varying degrees of poisoning symptoms in people and harm the brain, heart, liver, kidneys, lungs and other tissues. In industrial production, it is necessary to monitor the carbon monoxide content in the production environment in real time to prevent production accidents. Most of the existing carbon monoxide monitoring methods use the principle of chemical sensors, in which the probe monitors the concentration and transmits the monitoring information via wires to the sensor for processing.

[0003] During the mining process, excessive carbon monoxide concentration may cause gas explosion. The release of carbon monoxide is an important cause of casualties. Therefore, many carbon monoxide probes are usually installed in mines. Many carbon monoxide probes are connected to the gas sensor body. After the carbon monoxide probe is damaged, it is necessary to remove the carbon monoxide probe for replacement. However, most of the existing carbon monoxide probes are fixed to the monitoring position with screws. Since the mine is relatively dim and the lighting intensity is low, it is difficult to accurately align the screws with a screwdriver for disassembly, which is more troublesome during the replacement process. Moreover, the damaged sensor can no longer monitor the concentration of carbon monoxide. The longer the maintenance personnel stay in the mine, the higher the risk. Therefore, a device is needed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a carbon monoxide gas sensor, which can quickly disassemble the monitoring probe and shorten the time that maintenance personnel stay in the mine.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A carbon monoxide gas sensor is designed, comprising a housing, a detection mechanism and a connecting wire, one end of the connecting wire is connected to a terminal interface in the housing, wherein;

[0007] The detection mechanism includes a fixing plate, a carbon monoxide probe unit and a mounting plate. The fixing plate is preset at a desired detection position and is used to be connected to the mounting plate. The fixing plate is detachably connected to the mounting plate through a clamping mechanism. The mounting plate is used to install the carbon monoxide probe unit. A connecting port is provided on one side of the mounting plate. The other end of the connecting wire is detachably connected to the connecting port. The movement of the connecting wire is restricted by a fixing mechanism. One end of the connecting wire that passes through the connecting port is electrically connected to the output end of the carbon monoxide probe unit.

[0008] The carbon monoxide probe unit has a built-in carbon monoxide monitoring sensor element, which is used to chemically react with carbon monoxide gas and generate a corresponding electrical signal;

[0009] The fixing mechanism comprises a fixing buckle, a fixing groove and a movable sleeve, wherein the fixing buckle is arranged on the inner wall of the connecting port, the fixing groove is arranged on the outer circumferential surface of the connecting line, the movable sleeve is sleeved with the connecting line, and the movable sleeve is used to push the fixing buckle to move.

[0010] Optionally, the card connection mechanism includes a plug plate, a slot and a limit block, wherein the plug plate is fixedly connected to the surface of the fixing plate, the slot is opened on the surface of the mounting plate, the plug plate is plugged into the inner wall of the slot, and the limit block is arranged on one side of the plug plate.

[0011] Optionally, a disassembly buckle is provided on the outer circular surface of the mounting plate, one end of the disassembly buckle is fitted with one end of the limit block, a compression spring is provided inside the plug plate, and the limit block is fitted with one end of the compression spring.

[0012] Optionally, a wiring compartment is provided at the bottom of the housing, a wire management groove is provided at the bottom of the wiring compartment, and a cover plate is detachably connected to the surface of the housing.

[0013] Optionally, a rubber pad is provided on the inner wall of the cable management groove, one end of the connecting wire passes through the rubber pad and is located inside the wiring compartment, and the rubber pad is used to fix the connecting wire.

[0014] Optionally, a protective shell is threadedly connected to the bottom of the mounting plate, and a vent hole is provided on the surface of the protective shell, and the protective shell is used to protect the carbon monoxide probe unit.

[0015] Optionally, a support plate is fixedly connected to the inner wall of the protective shell, a support spring is provided on one side of the support plate, a push plate is provided at one end of the support spring away from the support plate, and the push plate is used to support the carbon monoxide probe unit.

[0016] Optionally, a through hole is provided in the middle of the fixing plate, and an avoidance groove is provided on the surface of the mounting plate.

[0017] The utility model provides a carbon monoxide gas sensor, which has the following beneficial effects:

[0018] The carbon monoxide gas sensor can quickly disassemble the mounting plate from the fixing plate when replacement is needed through the coordinated arrangement of the fixing plate, the mounting plate and the clamping mechanism, and can also be quickly installed back after replacement. The fixing mechanism can be arranged so that the connecting wire and the connecting port can be plugged together, and the position of the connecting wire can be fixed by the fixing buckle and the fixing groove. When disassembling, the movable sleeve can be pushed so that the movable sleeve separates the fixing buckle from the fixing groove, thereby separating the connecting wire from the connecting port. The mounting plate can be disassembled and replaced as a whole by cooperating with the clamping mechanism, thereby shortening the time that maintenance personnel stay in the mine and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure when the utility model is used;

[0021] Figure 3 This is a schematic diagram of the structure of the detection mechanism of the utility model in front cross-section;

[0022] Figure 4 It is a cross-sectional structural schematic diagram of the first state of the fixing mechanism of the utility model;

[0023] Figure 5 It is a cross-sectional structural schematic diagram of the second state of the fixing mechanism of the utility model;

[0024] Figure 6 It is a cross-sectional structural schematic diagram of the third state of the fixing mechanism of the utility model.

[0025] In the figure: 1. Shell; 2. Connecting wire; 3. Fixing plate; 4. Mounting plate; 5. Connecting port; 6. Fixing buckle; 7. Fixing slot; 8. Movable sleeve; 9. Insertion plate; 10. Slot; 11. Limit block; 12. Disassembly buckle; 13. Compression spring; 14. Wiring compartment; 15. Wire management slot; 16. Rubber pad; 17. Protective shell; 18. Support plate; 19. Support spring; 20. Push plate; 21. Through hole; 22. Avoidance slot; 23. Cover plate. DETAILED DESCRIPTION

[0026] 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. 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.

[0027] See also Figures 1 to 6The utility model provides a gas sensor device, which is used in the scenario of carbon monoxide monitoring. In this embodiment, the structure of the gas sensor device is improved to enable the device to have the advantage of quickly disassembling the probe unit to shorten the maintenance time. The gas sensor device is specifically a carbon monoxide gas sensor, which can be quickly connected and disassembled.

[0028] See also Figures 1 to 6 The utility model provides a technical solution: a carbon monoxide gas sensor, which is mainly used in the scenario of carbon monoxide monitoring.

[0029] The gas sensor device comprises a housing 1, a detection mechanism and a connecting line 2, one end of the connecting line 2 is connected to a terminal interface in the housing 1, wherein;

[0030] The detection mechanism includes a fixing plate 3, a carbon monoxide probe unit and a mounting plate 4. The fixing plate 3 is preset at a desired detection position and is used to be connected to the mounting plate 4. The fixing plate 3 is detachably connected to the mounting plate 4 through a clamping mechanism. The mounting plate 4 is used to install the carbon monoxide probe unit. A connecting port 5 is provided on one side of the mounting plate 4. The other end of the connecting wire 2 is detachably connected to the connecting port 5. The movement of the connecting wire 2 is restricted by the fixing mechanism. One end of the connecting wire 2 that penetrates the connecting port 5 is electrically connected to the output end of the carbon monoxide probe unit.

[0031] The carbon monoxide probe unit has a built-in carbon monoxide monitoring sensor element, which is used to chemically react with carbon monoxide gas and generate a corresponding electrical signal;

[0032] The fixing mechanism includes a fixing buckle 6, a fixing groove 7 and a movable sleeve 8. The fixing buckle 6 is arranged on the inner wall of the connecting port 5. The fixing groove 7 is arranged on the outer circumferential surface of the connecting line 2. The movable sleeve 8 is sleeved with the connecting line 2. The movable sleeve 8 is used to push the fixing buckle 6 to move.

[0033] In this embodiment, the fixing plate 3 is used to be fixed on the wall, and the mounting plate 4 can be connected to the fixing plate 3 through a clamping mechanism. The connecting port 5 is used to be plugged with the connecting line 2 for transmitting the detection signal. The spring pushes the fixing buckle 6 outward so that the fixing buckle 6 and the fixing groove 7 are clamped together, thereby fixing the connecting line 2 at the connecting port 5. The movable sleeve 8 can slide on the outside of the connecting line 2. When the movable sleeve 8 moves toward one end of the connecting port 5, the movable sleeve 8 will push the fixing buckle 6 back to separate the fixing buckle 6 from the fixing groove 7, thereby pulling the connecting line 2 out of the connecting port 5.

[0034] In the above embodiment, as a preferred solution, the card connection mechanism includes a plug plate 9, a slot 10 and a limit block 11. The plug plate 9 is fixedly connected to the surface of the fixing plate 3, the slot 10 is opened on the surface of the mounting plate 4, the plug plate 9 is plugged into the inner wall of the slot 10, and the limit block 11 is arranged on one side of the plug plate 9. The slot 10 is large at one end and small at the other end. The shape of the plug plate 9 is matched with the slot 10, so that the plug plate 9 can only be inserted on one side. After rotation, the plug plate 9 can be connected with the slot 10, and then the mounting plate 4 and the fixing plate 3 are connected together. The spring inside the plug plate 9 pushes the limit block 11 on one side outward, so that the limit block 11 is carded with the inner wall of the slot 10, thereby fixing the position of the plug plate 9;

[0035] In the above embodiment, as a preferred solution, a disassembly buckle 12 is provided on the outer circumferential surface of the mounting plate 4, one end of the disassembly buckle 12 is fitted with one end of the limit block 11, a compression spring 13 is provided inside the plug plate 9, the limit block 11 is fitted with one end of the compression spring 13, and the position of the disassembly buckle 12 is aligned with the limit block 11. After pressing the disassembly buckle 12, the disassembly buckle 12 can push the limit block 11 back. After the limit block 11 is separated from the slot 10, the plug plate 9 can be separated from the slot 10, so as to disassemble the mounting plate 4;

[0036] In the above embodiment, as a preferred solution, a wiring compartment 14 is provided at the bottom of the housing 1, a wire management groove 15 is provided at the bottom of the wiring compartment 14, a cover plate 23 is detachably connected to the surface of the housing 1, and the cover plate 23 is connected to the wiring compartment 14 by a buckle. After the connecting wire 2 passes through the wire management groove 15, the connecting wire 2 can be inserted into the wiring compartment 14, so that the connecting wire 2 is connected to the sensor for sampling. There are multiple wire management grooves 15, which can be classified and set according to different types of probes;

[0037] In the above embodiment, as a preferred solution, a rubber pad 16 is provided on the inner wall of the wire management groove 15, one end of the connecting wire 2 passes through the rubber pad 16 and is located inside the wiring compartment 14, the rubber pad 16 is used to fix the connecting wire 2, the rubber pad 16 is hollow, so that the connecting wire 2 can pass through the rubber pad 16, the rubber pad 16 can fix the connecting wire 2, reduce the shaking of the connecting wire 2, and also reduce the entry of external dust;

[0038] In the above embodiment, as a preferred solution, the bottom of the mounting plate 4 is threadedly connected with a protective shell 17, and the surface of the protective shell 17 is provided with air holes. The protective shell 17 is used to protect the carbon monoxide probe unit. The detection unit is fixed in the protective shell 17. The air holes allow outside air to enter the protective shell 17 to reduce the impact on the sensitivity of the probe. When the probe is damaged or needs to be replaced, the mounting plate 4 can be removed from the fixing plate 3, and then the new mounting plate 4 can be stuck in the fixing plate 3;

[0039] In the above embodiment, as a preferred solution, the inner wall of the protective shell 17 is fixedly connected with a support plate 18, a support spring 19 is provided on one side of the support plate 18, and a push plate 20 is provided at one end of the support spring 19 away from the support plate 18. The push plate 20 is used to support the carbon monoxide probe unit. The support spring 19 pushes the push plate 20 upward, and the push plate 20 fits with the top of the detection unit, so that the detection unit can be better connected with the mounting plate 4, reducing the occurrence of poor contact and improving stability during use;

[0040] In the above embodiment, as a preferred solution, a through hole 21 is provided through the middle of the fixing plate 3, and an avoidance groove 22 is provided on the surface of the mounting plate 4. After the bolt passes through the through hole 21, the fixing plate 3 can be fixed on the wall. The avoidance groove 22 is aligned with the position of the through hole 21 to reduce the interference caused by the bolt.

[0041] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0042] In the utility model, the working steps of the device are as follows:

[0043] When in use, use bolts to fix the fixing plate 3 to the wall, align the plug plate 9 with the slot 10, insert the plug plate 9 into the slot 10 and then rotate it to connect the plug plate 9 with the slot 10, insert the connecting wire 2 into the connecting port 5, open the cover 23 at the bottom of the shell 1, pass the connecting wire 2 into the rubber pad 16 in the wire management groove 15, and connect one end of the connecting wire 2 in the wiring compartment 14 to the shell 1, after the two ends of the connecting wire 2 are respectively connected to the shell 1 and the connecting port 5, buckle the cover 23 back to the shell 1.

[0044] When the probe needs to be replaced, press the disassembly buckle 12 on the mounting plate 4 and rotate the mounting plate 4 at the same time to separate the mounting plate 4 from the fixed plate 3, push the movable sleeve 8 on the outside of the connecting wire 2 toward one end of the connecting port 5, so that the movable sleeve 8 separates the fixed buckle 6, and after the fixed buckle 6 and the fixed groove 7 are separated, pull the connecting wire 2 out of the connecting port 5, fix the connecting wire 2 to the new mounting plate 4, and connect the mounting plate 4 to the fixed plate 3. After returning to the ground, the protective shell 17 can be removed and the damaged probe inside can be replaced. After replacement, the mounting plate 4 can be reused.

[0045] 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. A carbon monoxide gas sensor, characterized in that: It comprises a housing (1), a detection mechanism and a connecting line (2), one end of the connecting line (2) being connected to a terminal interface in the housing (1), wherein; The detection mechanism comprises a fixing plate (3), a carbon monoxide probe unit and a mounting plate (4); the fixing plate (3) is preset at a desired detection position and is used to be connected to the mounting plate (4); the fixing plate (3) is detachably connected to the mounting plate (4) via a clamping mechanism; the mounting plate (4) is used to mount the carbon monoxide probe unit; a connecting port (5) is provided on one side of the mounting plate (4); the other end of the connecting wire (2) is detachably connected to the connecting port (5); the movement of the connecting wire (2) is restricted by a fixing mechanism; one end of the connecting wire (2) that penetrates the connecting port (5) is electrically connected to the output end of the carbon monoxide probe unit; The carbon monoxide probe unit has a built-in carbon monoxide monitoring sensor element, which is used to chemically react with carbon monoxide gas and generate a corresponding electrical signal; The fixing mechanism comprises a fixing buckle (6), a fixing groove (7) and a movable sleeve (8); the fixing buckle (6) is arranged on the inner wall of the connecting port (5); the fixing groove (7) is opened on the outer circumferential surface of the connecting line (2); the movable sleeve (8) is sleeved with the connecting line (2); and the movable sleeve (8) is used to push the fixing buckle (6) to move.

2. A carbon monoxide gas sensor according to claim 1, characterized in that: The clamping mechanism comprises an inserting plate (9), a slot (10) and a limit block (11); the inserting plate (9) is fixedly connected to the surface of the fixing plate (3); the slot (10) is provided on the surface of the mounting plate (4); the inserting plate (9) is plugged into the inner wall of the slot (10); and the limit block (11) is provided on one side of the inserting plate (9).

3. A carbon monoxide gas sensor according to claim 2, characterized in that: The outer circumferential surface of the mounting plate (4) is provided with a disassembly buckle (12), one end of the disassembly buckle (12) is fitted with one end of a limit block (11), and a compression spring (13) is provided inside the plug plate (9), and the limit block (11) is fitted with one end of the compression spring (13).

4. A carbon monoxide gas sensor according to claim 1, characterized in that: A wiring compartment (14) is provided at the bottom of the housing (1), a wire management groove (15) is provided at the bottom of the wiring compartment (14), and a cover plate (23) is detachably connected to the surface of the housing (1).

5. A carbon monoxide gas sensor according to claim 4, characterized in that: The inner wall of the cable management groove (15) is provided with a rubber pad (16); one end of the connecting wire (2) passes through the rubber pad (16) and is located inside the wiring compartment (14); the rubber pad (16) is used to fix the connecting wire (2).

6. A carbon monoxide gas sensor according to claim 1, characterized in that: The bottom of the mounting plate (4) is threadedly connected to a protective shell (17), and a vent hole is provided on the surface of the protective shell (17). The protective shell (17) is used to protect the carbon monoxide probe unit.

7. A carbon monoxide gas sensor according to claim 6, characterized in that: The inner wall of the protective shell (17) is fixedly connected with a support plate (18), one side of the support plate (18) is provided with a support spring (19), and the end of the support spring (19) away from the support plate (18) is provided with a push plate (20), and the push plate (20) is used to support the carbon monoxide probe unit.

8. A carbon monoxide gas sensor according to claim 1, characterized in that: A through hole (21) is provided through the middle of the fixing plate (3), and an avoidance groove (22) is provided on the surface of the mounting plate (4).

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