CN217278326U

CN217278326U - Combustible gas detection sensor

Info

Publication number: CN217278326U
Application number: CN202123432918.8U
Authority: CN
Inventors: 杨倩
Original assignee: Shijiazhuang Longteng Weiye Technology Co ltd
Current assignee: Shijiazhuang Longteng Weiye Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-08-23
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to the technical field of gas detection, and provides a combustible gas detection sensor, the surface of a gas sensor body of which is not easily polluted, comprising a gas sensor body and a protective frame, four dust screens are installed in the protective frame, the gas sensor body is installed in the protective frame, the protective frame is detachably connected with a transmission case, a transmission component is arranged in the transmission case, the transmission component is connected with two screw rods, the transmission component comprises two chain wheels, the screw rods pass through the transmission case and extend into the transmission case, the chain wheels are fixedly connected with the top ends of the corresponding screw rods, the two chain wheels are connected through chain transmission, a motor is installed on the transmission case, the output end of the motor extends into the transmission case and is connected with the corresponding chain wheels, movable blocks are connected on the screw rods through screw threads, a cleaning frame is connected between the two movable blocks, and the cleaning frame is connected with a plurality of hairbrushes, the brush contacts with a plurality of dust screens, is connected with on the protective frame and is used for carrying out spacing subassembly to the dust screen.

Description

Combustible gas detection sensor

Technical Field

The utility model relates to a gaseous detection technology field, concretely relates to combustible gas detects sensor.

Background

It is known that combustible gas is one of the important causes of explosion in some special occasions, such as mines and gas stations, and it is necessary to detect combustible gas by using a combustible gas detection device to reduce the danger caused by explosion, and the main component of the combustible gas detection device is a combustible gas detection sensor.

Through retrieval, china 2020, 9.29.29 discloses a high-sensitivity combustible gas sensor with patent publication number CN211603097U, which is roughly described as comprising a sensor body and a guide pin, wherein the outer wall of the sensor body is fixedly sleeved with a fixed plate, the corners of the upper surface of the fixed plate are provided with through holes, the hole walls of the through holes are movably connected with a fixing mechanism, and the inner walls of a plurality of fixing mechanisms are fixedly connected with an auxiliary mechanism together.

Although foretell prior art scheme has improved the sensitivity that combustible gas sensor detected, and then can effectively improve the effect that combustible gas sensor detected to and improved the stability of combustible gas sensor installation, but because its operational environment is comparatively abominable usually, in the in-process that detects combustible gas, the surface of sensor is infected with dust or other powder material easily, influences normal detection achievement, is not convenient for clear up the surface of sensor among the foretell prior art, and detection effect is relatively poor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To prior art not enough, the utility model provides a combustible gas detects sensor to the surface of the prior art sensor who proposes in the solution background art receives the problem of pollution easily.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a combustible gas detects sensor, includes gas sensor body and protective frame, protective frame's internally mounted has four dust screens, the inside at protective frame is installed to the gas sensor body, protective frame's top can be dismantled and be connected with the transmission case, the inside of transmission case is provided with drive assembly, drive assembly is connected with two screw rods, threaded connection has the movable block on the screw rod, is connected with the clearance frame between two movable blocks, the internally connected with of clearance frame has a plurality of brushes to brush and a plurality of dust screen contact, be connected with on the protective frame and be used for carrying out spacing subassembly to the dust screen.

Preferably, the transmission assembly includes two sprockets, the top of screw rod is passed the transmission case and is stretched into the inside of transmission case, sprocket fixed connection is on the top of the screw rod that corresponds, connects through chain drive between two sprockets, the motor is installed on the top of transmission case, the output of motor stretch into the inside of transmission case and with the sprocket fixed connection that corresponds.

Further, spacing subassembly includes a plurality of limiting plates, a plurality of spacing grooves have been seted up on the protective frame, the internal connection of spacing groove has spacing spring, limiting plate and the spacing spring coupling that corresponds to limiting plate and the dust screen contact that corresponds.

Still further, the bottom of transmission case is connected with the mounting panel through the connecting rod, two mounting holes have been seted up on the mounting panel, the inside of mounting hole is provided with mounting bolt to the last a plurality of installation screw that match with mounting bolt of having seted up of protective frame.

As a further scheme of the scheme, the protection frame is internally connected with four limiting frames, and the dustproof net is in contact with the limiting frames.

As a further scheme of the scheme, the bottom end of the screw rod is rotatably connected with a rotating plate, the bottom end of the protective frame is connected with a magnet, and the rotating plate is made of iron metal.

On the basis of the scheme, the four damping cushions are connected inside the protective frame, and the dust screen and the damping cushions are in sealing sliding fit.

On the basis of the scheme, the top end of the transmission case is connected with a pull ring.

(III) advantageous effects

Compared with the prior art, the utility model provides a combustible gas detects sensor possesses following beneficial effect:

the utility model discloses in, combustible gas passes through the inside that the dust screen got into the protective frame, detect combustible gas through the gas sensor body, in this process, can block dust or other powdered materials in the air through the dust screen, connect the top at the protective frame with the transmission case, can drive two screw rods through drive assembly and rotate, screw-thread fit and protective frame through movable block and screw rod are to the limiting displacement of clearance frame and movable block, the accessible movable block drives clearance frame and brush and removes, clear up the dust on the dust screen, and it is spacing to the dust screen to relieve spacing subassembly, can dismantle the dust screen, thereby carry out comparatively thorough washing or change to it, contrast foretell prior art, the surface of gas sensor body is difficult to receive the pollution in this scheme.

Drawings

Fig. 1 is a schematic view of a partially cut-away three-dimensional structure of the present invention;

FIG. 2 is a schematic view of a portion of the enlarged structure of FIG. 1;

FIG. 3 is a schematic view of the overall three-dimensional structure of the present invention;

fig. 4 is a schematic view of the partially cut-away three-dimensional structure of the transmission case, the screw rod, the moving block, the cleaning frame and the like;

fig. 5 is a schematic view of a part of the enlarged structure at B in fig. 4 according to the present invention.

In the figure: 1. a gas sensor body; 2. a protective frame; 3. a dust screen; 4. a transmission case; 5. a screw; 6. a moving block; 7. cleaning the frame; 8. a brush; 9. a sprocket; 10. a chain; 11. a motor; 12. a limiting plate; 13. a limiting spring; 14. mounting a plate; 15. installing a bolt; 16. a limiting frame; 17. rotating the plate; 18. a magnet; 19. a damping pad; 20. and (4) a pull ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-5, a combustible gas detection sensor comprises a gas sensor body 1 and a protection frame 2, four dust screens 3 are installed inside the protection frame 2, four damping cushions 19 are connected inside the protection frame 2, the dust screens 3 and the damping cushions 19 are in sealing sliding fit, so as to ensure the stability of the dust screens 3, the gas sensor body 1 is installed inside the protection frame 2, combustible gas enters the protection frame 2 through the dust screens 3, the combustible gas is detected through the gas sensor body 1, the top end of the protection frame 2 is detachably connected with a transmission case 4, the top end of the transmission case 4 is connected with a pull ring 20, so that an operator can conveniently hold the transmission case 4 to detach the transmission case or lift and move the combustible gas detection sensor, the bottom end of the transmission case 4 is connected with a mounting plate 14 through a connecting rod, the mounting plate 14 is provided with two mounting holes, the inside of mounting hole is provided with construction bolt 15, and set up a plurality ofly on the protective frame 2 and the installation screw that construction bolt 15 matches, can realize the comparatively free dismouting to mounting panel 14 through construction bolt 15, thereby carry out the dismouting to transmission case 4, the inside of transmission case 4 is provided with drive assembly, drive assembly is connected with two screw rods 5, drive assembly includes two sprocket 9, transmission case 4 is passed on the top of screw rod 5 and stretches into the inside of transmission case 4, sprocket 9 fixed connection is on the top of the screw rod 5 that corresponds, connect through the transmission of chain 10 between two sprocket 9, motor 11 is installed on the top of transmission case 4, motor 11's output stretches into transmission case 4's inside and with the sprocket 9 fixed connection that corresponds.

It should be further noted that the corresponding chain wheel 9 can be driven to rotate by the motor 11, the two chain wheels 9 can be synchronously rotated by the transmission action of the chain 10, so as to drive the two screws 5 to synchronously rotate, the bottom ends of the screws 5 are rotatably connected with the rotating plate 17, the bottom end of the protective frame 2 is connected with the magnet 18, the rotating plate 17 is made of ferrous metal, the rotating plate 17 can be attracted by the magnet 18 to ensure the stability of the rotating plate 17, so as to improve the stability of the screws 5 and the cleaning frame 7, the screws 5 are in threaded connection with the moving block 6, the cleaning frame 7 is connected between the two moving blocks 6, the cleaning frame 7 is connected with a plurality of brushes 8 inside the cleaning frame 7, the brushes 8 are in contact with a plurality of dust screens 3, the cleaning frame 7 and the moving block 6 can be driven to move by the moving block 6 through the threaded fit of the moving block 6 and the screws 5 and the limiting action of the protective frame 2 on the cleaning frame 7 and the moving block 6, clear up the dust on the dust screen 3, be connected with on the protective frame 2 and be used for carrying out spacing subassembly to dust screen 3, spacing subassembly includes a plurality of limiting plates 12, a plurality of spacing grooves have been seted up on the protective frame 2, the internal connection of spacing groove has limiting spring 13, limiting plate 12 and the spacing spring 13 that corresponds are connected, and limiting plate 12 and the 3 contacts of dust screen that correspond, can stimulate limiting plate 12 through limiting spring 13, compress tightly limiting plate 12 on the surface of dust screen 3, thereby fix dust screen 3, the internal connection of protective frame 2 has four spacing frames 16, dust screen 3 and the 16 contacts of spacing frame, can carry out spacingly to dust screen 3 through spacing frame 16, limiting plate 12 compresses tightly dust screen 3 on spacing frame 16, guarantee dust screen 3's stability.

The motor 11 in this embodiment is a conventional device purchased from the market and known to those skilled in the art, and the model can be selected or customized according to actual needs, and in this patent, we only use it, and do not improve its structure and function, and its setting mode, installation mode, and electrical connection mode, for those skilled in the art, only need to perform debugging operation according to the requirements of their usage specifications, and are not described here again.

In conclusion, when the combustible gas detection sensor is used, firstly, the combustible gas detection sensor is placed at a place required to be used, combustible gas enters the protective frame 2 through the dustproof net 3, the combustible gas is detected through the gas sensor body 1, in the process, dust or other powdery substances in the air can be blocked through the dustproof net 3, the transmission case 4 is connected to the top end of the protective frame 2 through the mounting bolt 15, the motor 11 is started, the corresponding chain wheel 9 and the corresponding screw rod 5 are driven to rotate through the motor 11, the synchronous rotation of the two screw rods 5 is realized through the transmission action of the chain 10, the movable block 6 drives the cleaning frame 7 and the hairbrush 8 to move through the threaded fit of the movable block 6 and the screw rods 5 and the limiting action of the protective frame 2 on the cleaning frame 7 and the movable block 6, and the dust on the dustproof net 3 is cleaned, when the dust screen 3 needs to be disassembled, the dust screen 3 is pulled outwards, the dust screen 3 is pushed open by the corresponding limiting plates 12, the dust screen 3 can be disassembled, so that the dust screen can be cleaned or replaced more thoroughly, the dust screen 3 which is cleaned or replaced completely is installed in the dust-proof frame, and the limiting springs 13 are used for driving the limiting plates 12 to compress the dust screen 3 on the limiting frame 16.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A combustible gas detection sensor comprises a gas sensor body (1) and is characterized by also comprising a protective frame (2), four dustproof nets (3) are arranged inside the protective frame (2), the gas sensor body (1) is arranged inside the protective frame (2), the top end of the protective frame (2) is detachably connected with a transmission case (4), a transmission component is arranged in the transmission case (4), the transmission component is connected with two screw rods (5), moving blocks (6) are connected to the screw rods (5) in a threaded manner, a cleaning frame (7) is connected between the two moving blocks (6), a plurality of brushes (8) are connected inside the cleaning frame (7), and brush (8) and a plurality of dust screen (3) contact, be connected with on protection frame (2) and be used for carrying out spacing subassembly to dust screen (3).

2. The combustible gas detection sensor according to claim 1, wherein the transmission assembly comprises two chain wheels (9), the top end of the screw (5) penetrates through the transmission case (4) and extends into the transmission case (4), the chain wheels (9) are fixedly connected to the top end of the corresponding screw (5), the two chain wheels (9) are in transmission connection through a chain (10), the top end of the transmission case (4) is provided with a motor (11), and the output end of the motor (11) extends into the transmission case (4) and is fixedly connected with the corresponding chain wheel (9).

3. The combustible gas detection sensor according to claim 2, wherein the limiting component comprises a plurality of limiting plates (12), a plurality of limiting grooves are formed in the protective frame (2), limiting springs (13) are connected inside the limiting grooves, the limiting plates (12) are connected with the corresponding limiting springs (13), and the limiting plates (12) are in contact with the corresponding dust screens (3).

4. The combustible gas detection sensor according to claim 3, wherein the bottom end of the transmission case (4) is connected with a mounting plate (14) through a connecting rod, two mounting holes are formed in the mounting plate (14), a mounting bolt (15) is arranged inside the mounting holes, and a plurality of mounting screw holes matched with the mounting bolt (15) are formed in the protective frame (2).

5. The combustible gas detection sensor according to claim 4, wherein four limiting frames (16) are connected to the inside of the protection frame (2), and the dust screen (3) is in contact with the limiting frames (16).

6. The combustible gas detection sensor according to claim 5, wherein a rotating plate (17) is rotatably connected to a bottom end of the screw (5), a magnet (18) is connected to a bottom end of the protection frame (2), and the rotating plate (17) is made of ferrous metal.

7. The combustible gas detection sensor according to claim 6, wherein four damping cushions (19) are connected inside the protection frame (2), and the dust screen (3) and the damping cushions (19) are in sealing sliding fit.

8. The combustible gas detection sensor according to claim 7, wherein a pull ring (20) is attached to the top end of the transmission case (4).