Anti-interference methane sensor module structure

Abstract

The utility model discloses an anti-interference methane sensor module structure which comprises a shell, a through groove is formed in one end of the front face of the shell, a spliced and combined annular plate is arranged on the inner side of the through groove, and clamping blocks are installed at the four corners of the outer side of the annular plate. Clamping grooves matched with the clamping blocks in a clamping mode are formed in the positions, close to the four corners of the through groove, of one end of the shell, a through opening is formed in one end of the annular plate, a mounting base is mounted at the top of the interior of the shell, and a methane sensor body is arranged at the bottom of the mounting base; through the structural adjustment of the sealing plate and the dustproof baffle plate arranged in the annular plate, the sealing plate or the dustproof baffle plate can cover the front end of the air inlet plate through the rotation of the structure, so that the air inlet plate is subjected to sealing protection or dustproof filtration, and the air inlet plate can be adjusted and used according to the use requirement of the sensor structure; dust prevention and protection functions of the sensor are added, and dust is prevented from permeating into the sensor module to generate interference and influence the gas detection accuracy of the sensor.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas detection technical field, concretely is a kind of anti-interference methane sensor module structure. BACKGROUND

[0002] Methane is a flammable and explosive gas, which is the main gas causing coal mine explosion. When methane leaks or gathers in large quantities, it may cause explosion if the concentration is too high, which seriously threatens the life safety of workers. Therefore, methane sensors are generally used in coal mine safety detection systems to detect changes in methane concentration.

[0003] The authorized announcement No. CN211478138U discloses a kind of anti-ethanol interference methane sensor module structure, the device is mainly covered by activated carbon filter membrane if methane sensor, if gas mixed with ethanol gas, ethanol gas is adsorbed and filtered by multilayer activated carbon filter membrane, so that ethanol gas cannot pass through all activated carbon filter membranes to reach the sensing area of methane sensor, so as to interfere with the normal work of methane sensor. Since activated carbon filter membrane does not adsorb methane, methane will reach the sensing area of methane sensor and will not affect the detection accuracy and sensitivity of methane sensor. However, the device still has the following defects in actual use:

[0004] The above-mentioned patent mainly uses multilayer activated carbon filter membrane to adsorb and filter ethanol gas, thereby improving the detection accuracy of methane sensor. However, when methane sensor is applied in coal mine field, there is a lot of dust on site, and dust can easily penetrate the surface of sensor module during long-term use, which can interfere with the detection of sensor and affect the detection efficiency of sensor. In addition, when the sensor is moved or disassembled, the internal sensor can be easily contacted by external dust, which reduces the protection efficiency of sensor and shortens the service life of sensor module. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an anti-interference methane sensor module structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an anti-interference methane sensor module structure, comprising a shell, a through slot is formed in the front end of the shell, and an annular plate is arranged on the inner side of the through slot in a spliced manner, a clamping block is installed at the four corners of the outer side of the annular plate, a clamping groove is formed at the four corners of the shell near the through slot and is matched with the clamping block, a through opening is formed in one end of the annular plate, a mounting seat is installed at the top inside the shell, a methane sensor body is arranged at the bottom of the mounting seat, an air inlet plate and a rubber protective mesh slot are respectively installed at the bottom of one end of the mounting seat, the rubber protective mesh slot is arranged on the outer side of the methane sensor body, the air inlet plate is arranged on the outer side of the rubber protective mesh slot, and an elastic positioning assembly is arranged in the clamping groove.

[0007] The middle position of one end of the shell is respectively provided with an annular groove and a threaded hole, the inner side of the annular groove is provided with a rotating sleeve which extends out of the outside of the annular plate, the inner side of the sleeve is provided with an adjusting bolt, the adjusting bolt is threadedly fixed with the threaded hole, the outer side of the sleeve is respectively provided with a sealing plate and a dust baffle which are rotatably arranged on the inner side of the annular plate, and the air inlet plate is oppositely matched with the sealing plate or the dust baffle.

[0008] Preferably, the elastic positioning assembly comprises a guide groove, a spring, a guide rod and a clamping hole, the inner side of each of the two sets of clamping blocks is provided with a guide groove, the inner side of each of the two sets of guide grooves is provided with a guide rod and a spring which is elastically connected with the guide rod, and the side away from each other of the two sets of clamping grooves is provided with a clamping hole which is matched with the guide rod.

[0009] Preferably, the sealing plate and the dust baffle are oppositely matched with the through hole, the through hole is in the same horizontal plane with the air inlet plate, the rubber protective mesh groove and the methane sensor body, so that the detected methane gas is dustproof and filtered, and the detection accuracy is improved.

[0010] Preferably, the inner side of the rubber protective mesh groove is provided with a rubber pad layer, and the rubber protective mesh groove and the air inlet plate are wrapped on the outer side of the methane sensor body, so that the filtered gas is detected by the filter structure wrapped on the outside of the sensor.

[0011] Preferably, the sleeve is rotatably arranged in the annular groove, and the adjusting bolt is threadedly fixed with the sleeve and the threaded hole, so that the sleeve is fixed in position by adjusting the structure of the adjusting bolt and the threaded hole.

[0012] Preferably, the inner side of the air inlet plate is provided with a plurality of air inlet holes, the sealing plate is closed matched with the air inlet holes of the air inlet plate, and the dust baffle is communicated with the air inlet holes of the air inlet plate, so that the gas enters the sensor module through the air inlet holes of the air inlet plate after being filtered by the dust baffle, and the gas is detected.

[0013] Preferably, the four sets of clamping blocks and clamping grooves on the outer side of the annular plate are clamped and fixed, and the annular plate is clamped and fixed at the middle position of one end of the shell, so that the annular plate can be quickly disassembled, and the working efficiency of the structure disassembly is improved.

[0014] Preferably, one end of each of the two sets of clamping blocks is provided with a channel, and one end of each of the two sets of guide rods is provided with a pull rod which extends out of the outside of the clamping block through the channel, so that the pull rod is conveniently adjusted in extension and retraction by the setting of the pull rod, and the convenience of the clamping structure operation is improved.

[0015] The anti-interference methane sensor module structure has at least the following advantages:

[0016] 1、through the structure adjustment of the sealing plate and the dustproof baffle arranged inside the annular plate, the sealing plate or the dustproof baffle is covered on the front end of the air inlet plate through the rotation of the structure, so that the air inlet plate is sealed and protected or dust filtered, the dustproof and protection functions of the sensor are increased, dust is prevented from penetrating into the sensor module to cause interference and affect the accuracy of the sensor gas detection, and through the dust filtering of the dustproof baffle and the filtering cooperation of the air inlet plate and the rubber protection mesh groove, the gas is accurately filtered and then detected by cooperating with the methane sensor body, and the sensitivity of the sensor is improved.

[0017] 2、the adjusting bolt is clamped in the end face of the shell as a whole, the clamping of the four sets of clamping grooves and clamping blocks and the structure cooperation of the elastic positioning assembly facilitate quick disassembly and separation of the adjusting bolt, and the shell structure of the sensor module is easily disassembled, so that the sensor body is maintained and repaired, and the working efficiency of the sensor structure disassembly is increased. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective view of the utility model;

[0019] Figure 2 It is a first main view of the utility model;

[0020] Figure 3 It is a second main view of the utility model;

[0021] Figure 4 It is a Figure 2 A structure enlarged schematic view of the utility model;

[0022] Figure 5 It is a side view of the mounting seat of the utility model.

[0023] In the drawing: 1, shell; 2, adjusting bolt; 3, annular plate; 4, sleeve; 5, through port; 6, sealing plate; 7, clamping groove; 8, clamping block; 9, dustproof baffle; 10, air inlet plate; 11, mounting seat; 12, annular groove; 13, threaded hole; 14, rubber protection mesh groove; 15, methane sensor body; 16, guide groove; 17, spring; 18, guide rod; 19, clamping hole. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] Referring to Figures 1-5 The utility model provides an embodiment: an anti -interference methane sensor module structure, the front one end of casing 1 is equipped with the through slot, and the inboard of through slot is equipped with the ring plate 3 of splicing combination, the four corners of ring plate 3 outside are equipped with the clamping block 8, and the four corners of casing 1 one end near through slot are equipped with the clamping groove 7 of clamping block 8 carding adaptation, the one end of ring plate 3 is equipped with the through -going 5, and the top inside casing 1 is equipped with the mounting seat 11, and the bottom of mounting seat 11 is equipped with methane sensor body 15, and the bottom of mounting seat 11 one end is equipped with air inlet plate 10 and rubber protective screen groove 14 respectively, and rubber protective screen groove 14 sets up the outside of methane sensor body 15, and air inlet plate 10 sets up the outside of rubber protective screen groove 14, and the inside of clamping groove 7 is equipped with elastic positioning assembly, and the inboard of rubber protective screen groove 14 is equipped with rubber pad layer, and rubber protective screen groove 14 and air inlet plate 10 are wrapped and set up the outside of methane sensor body 15, utilize the filter structure of sensor outside wrapping setting, let gas filter after detection;

[0026] Sealing plate 6 and dust baffle 9 cooperate with through -going 5, and through -going 5, air inlet plate 10 and rubber protective screen groove 14 and methane sensor body 15 are in the same horizontal plane, promote methane gas dust filtration and detect, improve detection accuracy;

[0027] The middle position of one end inside casing 1 is equipped with annular groove 12 and screw hole 13 respectively, the inboard of annular groove 12 is equipped with the sleeve pipe 4 of rotation activity, and the sleeve pipe 4 extends the outside of ring plate 3, the inboard of sleeve pipe 4 is equipped with adjusting bolt 2, adjusting bolt 2 is fixed with screw hole 13, the outside of sleeve pipe 4 is equipped with sealing plate 6 and dust baffle 9 respectively, and sealing plate 6 and dust baffle 9 rotate in the inboard of ring plate 3, air inlet plate 10 cooperates with sealing plate 6 or dust baffle 9 respectively, four groups of clamping block 8 on the outside of ring plate 3 are fixed with clamping groove 7, and ring plate 3 is spliced and clamped in the middle position of one end of casing 1, which is convenient for quickly disassembling ring plate 3, and increases the working efficiency of structure disassembly;

[0028] Elastic positioning assembly includes guide groove 16, spring 17, guide rod 18 and clamping hole 19, the inboard of two groups of clamping block 8 is equipped with guide groove 16, the inboard of two groups of guide groove 16 is equipped with guide rod 18 and spring 17 elastically connected with guide rod 18, and the side of two groups of clamping groove 7 away from each other is equipped with clamping hole 19, and clamping hole 19 is fixed with guide rod 18, and one end of two groups of clamping block 8 is equipped with channel, and one end of two groups of guide rod 18 is equipped with pull rod, and pull rod extends the outside of clamping block 8 through channel, and the setting of pull rod is convenient for operating pull rod to drive structure telescopic adjustment, and increases the convenience of clamping structure operation.

[0029] Embodiment 1, as Figures 1-3As shown, the sleeve 4 is rotatably movable inside the annular groove 12, the adjusting bolt 2 is threadedly fixed with the sleeve 4 and the threaded hole 13, and the sleeve 4 is rotatably adjusted in cooperation with the annular groove 12 to drive the sealing plate 6 and the dustproof baffle 9 to rotate to the port of the through hole 5, and after being adjusted to a designated position, the adjusting bolt 2 is threadedly fixed with the threaded hole 13 to position the adjusted sealing plate 6 or dustproof baffle 9 structure, and to seal or dustproof filter the port of the through hole 5.

[0030] As shown in Embodiment 2, Figures 1-3 As shown, the inside of the air inlet plate 10 is provided with a plurality of groups of air inlet holes, the sealing plate 6 is closed in cooperation with the air inlet holes of the air inlet plate 10, and the dustproof baffle 9 is in communication with the air inlet holes of the air inlet plate 10. Through the relative cooperation of the air inlet plate 10 and the dustproof baffle 9, the external methane gas is separated from dust after being filtered by the dustproof baffle 9, and the gas enters the rubber protective mesh groove 14 through the air inlet of the air inlet plate 10, and the methane gas detection work is carried out through the through hole 5. When the sealing plate 6 seals the air inlet plate 10, the device can be closed and protected when not in use, so that the internal sensor can be more safely protected during the movement of the device.

[0031] Working principle: in the anti-interference methane sensor module structure,

[0032] When the methane sensor is in use, the sleeve 4 is rotatably movable inside the annular groove 12, the sleeve 4 drives the sealing plate 6 and the dustproof baffle 9 to rotate inside the annular plate 3, and the sealing plate 6 or the dustproof baffle 9 is rotated to the position of the through hole 5 at the end face of the adjusting bolt 2. When the sealing plate 6 covers the end face of the air inlet plate 10, the air inlet of the sensor structure is closed for position movement in the protection state. When the dustproof baffle 9 is in cooperation with the air inlet plate 10, the gas passage is opened, and the adjusting bolt 2 is threadedly fixed with the threaded hole 13 to fix the position of the sleeve 4, the sealing plate 6 and the dustproof baffle 9. The external methane gas seeps into the air inlet plate 10 through the filtration of the dustproof baffle 9, and then enters the rubber protective mesh groove 14 for secondary filtration, so as to filter out the ethanol gas contained in the gas, so as to detect the methane gas by using the methane sensor body 15, and to perform the warning work of the methane gas, so as to achieve the dustproof interference effect of multiple layers of the sensor structure.

[0033] When the sensor needs to be maintained, the spring 17 in the guide groove 16 can be elastically compressed by pulling the two groups of guide rods 18, so that the two groups of guide rods 18 cancel the clamping and fixing with the clamping holes 19, then the clamping of the two groups of clamping blocks 8 and the clamping slots 7 is cancelled, so that the annular plate 3 and the four groups of clamping blocks 8 are taken out from the end face of the shell 1 and the four groups of clamping slots 7, and the mounting seat 11 and the air inlet plate 10 inside are exposed, so that the shell structure of the sensor can be quickly disassembled and assembled, and the working efficiency of the maintenance is increased.

[0034] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0035] In the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms connected and connected should be understood broadly, for example, can be fixedly connected, can be detachably connected; can be mechanically connected, can be electrically connected; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. An interference-proof methane sensor module structure comprising a housing (1), characterized in that: The front end of the shell (1) is provided with a through slot, and the inner side of the through slot is provided with a spliced annular plate (3), the outer side of the annular plate (3) is provided with a clamping block (8), the four corners of the shell (1) near the through slot are provided with a clamping groove (7) matched with the clamping block (8), one end of the annular plate (3) is provided with a through port (5), the top of the inside of the shell (1) is provided with a mounting seat (11), the bottom of the mounting seat (11) is provided with a methane sensor body (15), the bottom of one end of the mounting seat (11) is respectively provided with an air inlet plate (10) and a rubber protective mesh groove (14), the rubber protective mesh groove (14) is arranged on the outer side of the methane sensor body (15), the air inlet plate (10) is arranged on the outer side of the rubber protective mesh groove (14), and the inside of the clamping groove (7) is provided with an elastic positioning assembly. The inside of the shell (1) is provided with a threaded hole (13) and a ring groove (12) at the middle position of one end, the inner side of the ring groove (12) is provided with a rotating sleeve (4), and the sleeve (4) extends out of the outside of the annular plate (3), the inner side of the sleeve (4) is provided with an adjusting bolt (2), the adjusting bolt (2) is threadedly connected with the threaded hole (13), the outer side of the sleeve (4) is provided with a sealing plate (6) and a dustproof baffle (9), and the sealing plate (6) and the dustproof baffle (9) are rotatably arranged on the inner side of the annular plate (3), and the air inlet plate (10) is matched with the sealing plate (6) or the dustproof baffle (9).

2. The anti-interference methane sensor module structure according to claim 1, characterized in that: The elastic positioning assembly comprises a guide groove (16), a spring (17), a guide rod (18) and a clamping hole (19), the inner side of the two groups of clamping blocks (8) is provided with a guide groove (16), the inner side of the two groups of guide grooves (16) is respectively provided with a guide rod (18) and a spring (17) elastically connected with the guide rod (18), and the two groups of clamping grooves (7) are provided with a clamping hole (19) on the side away from each other, and the clamping hole (19) is matched with the guide rod (18).

3. The anti-interference methane sensor module structure according to claim 1, characterized in that: The sealing plate (6) and the dustproof baffle (9) are matched with the through port (5), the through port (5), the air inlet plate (10) and the rubber protective mesh groove (14) and the methane sensor body (15) are in the same horizontal plane.

4. The anti-interference methane sensor module structure according to claim 1, characterized in that: The inner side of the rubber protective mesh groove (14) is provided with a rubber pad, and the rubber protective mesh groove (14) and the air inlet plate (10) are wrapped on the outer side of the methane sensor body (15).

5. The anti-interference methane sensor module structure according to claim 1, characterized in that: The sleeve (4) is rotatably arranged in the ring groove (12), and the adjusting bolt (2) is threadedly connected with the sleeve (4) and the threaded hole (13).

6. The anti-interference methane sensor module structure according to claim 1, characterized in that: The inner side of the air inlet plate (10) is provided with a plurality of air inlet holes, the sealing plate (6) is closed and matched with the air inlet holes of the air inlet plate (10), and the dustproof baffle (9) is communicated with the air inlet holes of the air inlet plate (10).

7. The anti-interference methane sensor module structure according to claim 1, characterized in that: The four groups of clamping blocks (8) on the outer side of the annular plate (3) are clamped and fixed with the clamping grooves (7), and the annular plate (3) is spliced and clamped at the middle position of one end of the shell (1).

8. The anti-interference methane sensor module structure according to claim 2, characterized in that: One end of the card block (8) is provided with a passage, and one end of the guide rod (18) is provided with a pull rod which extends out of the card block (8) through the passage.

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