CN212658689U

CN212658689U - Formaldehyde gas sensor

Info

Publication number: CN212658689U
Application number: CN202021537391.8U
Authority: CN
Inventors: 张映君
Original assignee: Shenzhen Shenchen Technology Co ltd
Current assignee: Shenzhen Shenchen Technology Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-03-05
Anticipated expiration: 2030-07-29

Abstract

The utility model relates to a gas sensor body technical field, concretely relates to formaldehyde gas sensor. In the utility model, the rotating rod, the one-way bearing, the round pipe and the rotating plate rotate by starting the motor to rotate forwards, thereby the rotating plate can drive the shifting plate to move, and the shifting plate drives the moving plate and the connecting frame to move, and the first compression spring is utilized to lead the movable plate, the connecting frame and the dustproof filter screen to generate vibration when being reset, so as to shake off the dust on the dustproof filter screen, and the rotating rod rotates to drive the belt wheel to rotate, and the belt is utilized, so that the connecting rod, the second belt wheel and the first conical gear rotate, the screw rod and the second conical gear rotate, thereby the moving block, the first connecting block and the electrostatic dustproof brush move, and the electrostatic dustproof brush is used for absorbing the dust on the dustproof filter screen, thereby avoided the dust to stop up the filtration hole on the dustproof filter screen, and then increased the performance of this formaldehyde gas sensor body.

Description

Formaldehyde gas sensor

Technical Field

The utility model relates to a gas sensor body technical field, concretely relates to formaldehyde gas sensor.

Background

The formaldehyde sensor is used for people to detect formaldehyde gas, is specially used for gas detection, and comprises a formaldehyde oxide gas sensor, a formaldehyde gas molecular sieve sensor, a formaldehyde surface acoustic wave gas sensor body, a visual fluorescent formaldehyde sensor, a formaldehyde gas electronic nose and the like.

The air inlet of current formaldehyde gas sensor generally all is provided with the dust-proof membrane, but a lot of new houses are inside not cleaning after the fitment, and the dust of air is a lot of in the room, consequently, when carrying out formaldehyde detection, too much dust can be piled up on the dust-proof membrane to can produce the bleeder vent on the dust-proof membrane and block up, and then influence formaldehyde gas sensor's performance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problem that dust is accumulated, so that air holes in a dustproof film are blocked, and the service performance of the formaldehyde gas sensor is influenced, a formaldehyde gas sensor is provided.

The purpose of the utility model can be realized by the following technical scheme:

a formaldehyde gas sensor comprises a gas sensor body, wherein a plurality of air holes are uniformly formed in one side of the gas sensor body, and a dustproof mechanism is arranged on one side of the gas sensor body;

the dustproof mechanism comprises a rectangular frame, a connecting plate is fixedly connected to the inner top surface of the rectangular frame, a movable plate is arranged on one side of the connecting plate, a first compression spring is fixedly connected between the connecting plate and one side adjacent to the movable plate, a connecting frame is fixedly connected to one end of the bottom of the movable plate, a dustproof filter screen is fixedly bonded inside the connecting frame, a motor is fixedly connected to the top of one side inside the rectangular frame, the output end of the motor is in transmission connection with a rotating rod, one end of the rotating rod is rotatably connected with the rectangular frame, a one-way bearing is fixedly sleeved at the middle position outside the rotating rod, a round pipe is fixedly sleeved outside the one-way bearing, a rotating plate is fixedly connected to the top of the outer side of the round pipe, a first belt wheel is fixedly sleeved at one end of the rotating rod, a connecting rod is arranged, the outer side of the connecting rod is fixedly sleeved with a belt wheel II, a belt is in transmission connection with the belt wheel I, the other end of the connecting rod is fixedly connected with a conical gear I, the top of the conical gear I is meshed with a conical gear II, a screw rod is fixedly sleeved in the conical gear II, two ends of the screw rod are rotatably connected with the rectangular frame, the outer side of the screw rod is rotatably connected with a moving block, one side of the moving block is provided with a connecting block I, one side of the connecting block I is fixedly connected with an electrostatic dustproof brush, when the gas sensor is used, air passes through the dustproof mechanism and the air holes to enter the gas sensor body, so that the concentration of formaldehyde gas in the air is detected, and the rotating rod, the one-way bearing, the circular pipe and the rotating plate are rotated by starting the gas sensor body to further move the rotating plate shifting plate, the shifting plate drives the moving plate and the connecting frame to move, when the rotating plate is separated from the shifting plate, the moving plate and the connecting frame are reset by the first compression spring, so that the dustproof filter screen generates vibration, so as to shake off the dust on the dustproof filter screen, and the rotating rod rotates to drive the belt wheel to rotate, and the belt is utilized, so that the connecting rod, the second belt wheel and the first conical gear rotate, the screw rod and the second conical gear rotate, thereby enabling the moving block, the first connecting block and the electrostatic dustproof brush to move, adsorbing dust on the dustproof filter screen by using the electrostatic dustproof brush, avoiding the dust from blocking filter holes on the dustproof filter screen, thereby increasing the service performance of the formaldehyde gas sensor body and controlling the motor to reversely rotate, the electrostatic dust brush can reciprocate, and the reverse rotation of the circular tube and the rotating plate is avoided by utilizing the one-way bearing.

The anti-dust brush is characterized in that a placing groove is formed in one end of the first connecting block, a moving groove is formed in the inner top surface of the placing groove, the moving groove is communicated with the placing groove, a clamping block is connected to the inside of the placing groove in a sliding mode, two compression springs are fixedly connected between one end of the clamping block and one end of the inside of the placing groove, one end of the top of the clamping block is fixedly connected with the second connecting block, the second connecting block is located inside the moving groove, a pushing block is fixedly connected to the top of the second connecting block, a clamping groove is formed in the position, corresponding to the clamping block, of the moving block, the clamping groove is connected with the clamping block in a clamping mode, the sliding block is used for moving the second connecting block and the clamping block, and therefore the first connecting.

The movable block is characterized in that one side of the first connecting block is fixedly connected with a second sliding block, a first sliding groove is formed in the position, corresponding to the second sliding block, of one side in the rectangular frame, the second sliding block is connected with the first sliding groove in a sliding mode, the second sliding block and the first sliding groove are used for limiting the first connecting block, and therefore the movable block is limited, and further the movable block is prevented from rotating.

The movable plate is characterized in that the bottom of the connecting plate is provided with an inserting through hole, the bottom of one side of the movable plate is fixedly connected with an inserting plate, the inserting plate is in sliding connection with the inserting through hole, and the movable plate is limited by the inserting plate and the inserting through hole.

The rectangular frame is characterized in that a first sliding block is fixedly connected to the middle position of the bottom of the connecting frame, a second sliding groove is formed in the middle position of the bottom surface in the rectangular frame, the first sliding block is in sliding connection with the second sliding groove, the cross sections of the first sliding block and the second sliding groove are T-shaped, and the first sliding block and the second sliding groove are used for limiting the connecting frame.

The rectangular frame is characterized in that one end inside the rectangular frame is fixedly connected with a baffle, the cross section of the baffle is L-shaped, and the baffle is used for shielding the first conical gear, the screw and the second conical gear, so that accidental injury during use is avoided.

The utility model has the advantages that:

1. the dust prevention mechanism is arranged on one side of the gas sensor body, air enters the gas sensor body through the dust prevention mechanism and the air holes by starting the gas sensor body, so that the concentration of formaldehyde gas in the air is detected, the rotating rod, the one-way bearing, the circular tube and the rotating plate rotate by rotating the starting motor, the rotating plate drives the shifting plate to move, the shifting plate drives the moving plate and the connecting frame to move, vibration is generated when the moving plate, the connecting frame and the dust prevention filter screen are reset by utilizing the first compression spring, dust on the dust prevention filter screen is shaken off, the first pulley is driven to rotate by rotating the rotating rod, the connecting rod, the second pulley and the first bevel gear are driven to rotate by utilizing the belt, the screw rod and the second bevel gear are driven to rotate, and the moving block, the first connecting block and the electrostatic dust prevention brush are driven to move, and utilize static dustproof brush to adsorb the dust on the dustproof filter screen to avoided the dust to block up the filtration pore on the dustproof filter screen, and then increased the performance of this formaldehyde gas sensor body.

Drawings

The present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of a gas sensor body according to the present invention;

FIG. 3 is a schematic view of the structure of the dustproof mechanism of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 is a schematic diagram of the position relationship between the middle connecting block and the electrostatic dust-proof brush of the present invention.

In the figure: 100. a gas sensor body; 110. air holes are formed; 200. a dust-proof mechanism; 210. a rectangular frame; 211. a first sliding chute; 212. a second chute; 220. a connecting plate; 221. inserting through holes; 230. moving the plate; 231. a plugboard; 232. a first compression spring; 233. a connecting frame; 234. a dustproof filter screen; 235. a first sliding block; 236. a poking plate; 240. a motor; 241. rotating the rod; 242. a one-way bearing; 243. a circular tube; 244. a rotating plate; 245. a first belt wheel; 250. a first connecting block; 251. an electrostatic dust brush; 252. a moving groove; 253. a placement groove; 254. a second compression spring; 255. a pushing block; 256. a second connecting block; 257. a clamping block; 258. a moving block; 259. a second sliding block; 260. a connecting rod; 261. a second belt wheel; 262. a first conical gear; 270. a belt; 280. a screw; 281. a second bevel gear; 290. and a baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to 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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 5, a formaldehyde gas sensor includes a gas sensor body 100, a plurality of air holes 110 are uniformly formed on one side of the gas sensor body 100, and a dust-proof mechanism 200 is disposed on one side of the gas sensor body 100;

the dustproof mechanism 200 comprises a rectangular frame 210, a connecting plate 220 is fixedly connected to the inner top surface of the rectangular frame 210, a moving plate 230 is arranged on one side of the connecting plate 220, a first compression spring 232 is fixedly connected between the connecting plate 220 and one side adjacent to the moving plate 230, a connecting frame 233 is fixedly connected to one end of the bottom of the moving plate 230, a dustproof filter screen 234 is fixedly bonded inside the connecting frame 233, a motor 240 is fixedly connected to the top of one side inside the rectangular frame 210, a rotating rod 241 is connected to the output end of the motor 240 in a transmission manner, one end of the rotating rod 241 is rotatably connected with the rectangular frame 210, a one-way bearing 242 is fixedly sleeved at the middle position outside the rotating rod 241, a round tube 243 is fixedly sleeved outside the one-way bearing 242, a rotating plate 244 is fixedly connected to the top of the outside of the round tube 243, a connecting rod 260 is arranged on one side, on which, the outer side of the connecting rod 260 is fixedly sleeved with a belt wheel two 261, a belt 270 is in transmission connection between the belt wheel one 245 and the belt wheel two 261, the other end of the connecting rod 260 is fixedly connected with a conical gear one 262, the top of the conical gear one 262 is engaged with a conical gear two 281, the inner part of the conical gear two 281 is fixedly sleeved with a screw rod 280, two ends of the screw rod 280 are rotatably connected with the rectangular frame 210, the outer side of the screw rod 280 is rotatably connected with a moving block 258, one side of the moving block 258 is provided with a connecting block one 250, one side of the connecting block one 250 is fixedly connected with an electrostatic dust-proof brush 251, when the gas sensor is used, air passes through the dust-proof mechanism 200 and the air holes 110 to enter the gas sensor body 100 by starting the gas sensor body 100, so as to detect the concentration of formaldehyde gas in the air, and the rotating rod 241, and then the rotating plate 244 is made to stir the stirring plate 236 to move, the stirring plate 236 drives the moving plate 230 and the connecting frame 233 to move, when the rotating plate 244 is separated from the stirring plate 236, the moving plate 230 and the connecting frame 233 are reset by the first compression spring 232, so that the dustproof filter screen 234 vibrates, dust on the dustproof filter screen 234 is shaken off, the rotating rod 241 rotates to drive the first pulley 245 to rotate, the connecting rod 260, the second pulley 261 and the first bevel gear 262 rotate by the belt 270, so that the screw 280 and the second bevel gear 281 rotate, the moving block 258, the first connecting block 250 and the electrostatic dustproof brush 251 move, the electrostatic dustproof brush 251 is used for adsorbing dust on the dustproof filter screen 234, and therefore, the dust is prevented from blocking filter holes on the dustproof filter screen 234, and the use performance of the formaldehyde gas sensor body is increased, and the electrostatic dust brush 251 can perform a reciprocating motion by controlling the motor 240 to rotate in reverse, and the circular tube 243 and the rotating plate 244 are prevented from rotating in reverse by the one-way bearing 242.

One end of the first connecting block 250 is provided with a placing groove 253, the inner top surface of the placing groove 253 is provided with a moving groove 252, the moving groove 252 is communicated with the placing groove 253, the inside of the placing groove 253 is connected with a clamping block 257 in a sliding manner, two compression springs 254 are fixedly connected between one end of the clamping block 257 and one end of the inside of the placing groove 253, one end of the top of the clamping block 257 is fixedly connected with a second connecting block 256, the second connecting block 256 is positioned inside the moving groove 252, the top of the second connecting block 256 is fixedly connected with a pushing block 255, a clamping groove is formed in the position, corresponding to the clamping block 257, of the moving block 258, the clamping groove is clamped with the clamping block 257, the second connecting block 256 and the clamping block 257 are moved by sliding the pushing block 255, so that the clamping block 257 is separated from the clamping groove, the first connecting block 250 and the electrostatic dust-proof brush 251 are conveniently detached and cleaned, one side of the first connecting block, the second sliding block 259 is in sliding connection with the first sliding groove 211, and the first connecting block 250 is limited by the second sliding block 259 and the first sliding groove 211, so that the moving block 258 is limited, and further the moving block 258 is prevented from rotating.

The bottom of connecting plate 220 has been seted up and has been pegged graft through-hole 221, the bottom of moving plate 230 one side has linked firmly pegging graft board 231, pegging graft board 231 and pegging graft through-hole 221 sliding connection, utilize pegging graft board 231 and pegging graft through-hole 221 to carry on spacingly to moving plate 230, the intermediate position department of connecting frame 233 bottom has linked firmly slider one 235, the intermediate position department of the bottom surface has seted up spout two 212 in rectangular frame 210, slider one 235 and spout two 212 sliding connection, and the cross section of slider one 235 and spout two 212 is the T type, utilize slider one 235 and spout two 212 to carry on spacingly to connecting frame 233, the inside one end of rectangular frame 210 has linked firmly baffle 290, the cross section of baffle 290 is the L type, utilize baffle 290 to shelter from conical gear one 262, screw 280 and conical gear two 281, and then produce the.

The working principle is as follows: when the gas sensor is used, by starting the gas sensor body 100, air passes through the dustproof mechanism 200 and the air holes 110 to enter the gas sensor body 100, so as to detect the concentration of formaldehyde gas in the air, and by starting the motor 240 to rotate forward, the rotating rod 241, the one-way bearing 242, the circular pipe 243 and the rotating plate 244 rotate, so that the rotating plate 244 stirs the stirring plate 236 to move, the stirring plate 236 drives the moving plate 230 and the connecting frame 233 to move, when the rotating plate 244 is separated from the stirring plate 236, the moving plate 230 and the connecting frame 233 are reset by the first compression spring 232, so that the dustproof filter screen 234 vibrates, so as to shake off dust on the dustproof filter screen 234, and the rotating rod 241 rotates to drive the first pulley 245 to rotate, and the connecting rod 260, the second pulley 261 and the first conical gear 262 rotate by the belt 270, so as to rotate the screw 280 and the second conical gear 281, and then make movable block 258, connecting block 250 and static dustproof brush 251 remove, utilize static dustproof brush 251 to adsorb the dust on dustproof filter screen 234 to avoided the dust to block up the filtration hole on dustproof filter screen 234, and then increased this formaldehyde gas sensor body's performance, and through the reversal of control motor 240, make static dustproof brush 251 can carry out reciprocating motion, and utilize one-way bearing 242 to avoid pipe 243 and rotor plate 244 to reverse.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only, and various modifications, additions and substitutions as described for the specific embodiments described herein may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.

Claims

1. A formaldehyde gas sensor comprises a gas sensor body (100), and is characterized in that a plurality of air holes (110) are uniformly formed in one side of the gas sensor body (100), and a dustproof mechanism (200) is arranged on one side of the gas sensor body (100);

dustproof mechanism (200) includes rectangular frame (210), the interior top surface of rectangular frame (210) has linked firmly connecting plate (220), one side of connecting plate (220) is provided with movable plate (230), compression spring (232) have been linked firmly between one side that connecting plate (220) and movable plate (230) are adjacent, the one end of movable plate (230) bottom has linked firmly connecting frame (233), the inside bonding of connecting frame (233) is fixed with dustproof filter screen (234), the top of the inside one side of rectangular frame (210) has linked firmly motor (240), the output transmission of motor (240) is connected with dwang (241), and the one end and rectangular frame (210) of dwang (241) rotate to be connected, the intermediate position department in the dwang (241) outside cup joints and is fixed with one-way bearing (242), the outside of one-way bearing (242) cup joints and is fixed with pipe (243), the top of the outer side of the circular tube (243) is fixedly connected with a rotating plate (244), one end of the rotating rod (241) is fixedly sleeved with a first belt wheel (245), one side of the first belt wheel (245) is provided with a connecting rod (260), one end of the connecting rod (260) is rotatably connected with the rectangular frame (210), the outer side of the connecting rod (260) is fixedly sleeved with a second belt wheel (261), a belt (270) is connected between the first belt wheel (245) and the second belt wheel (261) in a transmission manner, the other end of the connecting rod (260) is fixedly connected with a first conical gear (262), the top of the first conical gear (262) is meshed with a second conical gear (281), a screw rod (280) is fixedly sleeved inside the second conical gear (281), two ends of the screw rod (280) are rotatably connected with the rectangular frame (210), the outer side of the screw rod (280) is rotatably connected with a moving block (258), one side of the moving block (, one side of the first connecting block (250) is fixedly connected with an electrostatic dust-proof brush (251).

2. The formaldehyde gas sensor according to claim 1, wherein a placing groove (253) is formed in one end of the first connecting block (250), a moving groove (252) is formed in an inner top surface of the placing groove (253), the moving groove (252) is communicated with the placing groove (253), a clamping block (257) is slidably connected to the inside of the placing groove (253), two compression springs (254) are fixedly connected between one end of the clamping block (257) and one end of the inside of the placing groove (253), a connecting block (256) is fixedly connected to one end of the top of the clamping block (257), the connecting block (256) is located inside the moving groove (252), a pushing block (255) is fixedly connected to the top of the connecting block (256), a clamping groove is formed in a position, corresponding to the clamping block (257), of the moving block (258), and the clamping groove is clamped with the clamping block (257).

3. The formaldehyde gas sensor according to claim 1, wherein a second sliding block (259) is fixedly connected to one side of the first connecting block (250), a first sliding groove (211) is formed in a position, corresponding to the second sliding block (259), on one side of the inside of the rectangular frame (210), and the second sliding block (259) is slidably connected with the first sliding groove (211).

4. The formaldehyde gas sensor as claimed in claim 1, wherein the bottom of the connecting plate (220) is provided with a plugging through hole (221), the bottom of one side of the moving plate (230) is fixedly connected with a plugging plate (231), and the plugging plate (231) is slidably connected with the plugging through hole (221).

5. The formaldehyde gas sensor according to claim 1, wherein a first sliding block (235) is fixedly connected to a middle position of the bottom of the connecting frame (233), a second sliding groove (212) is formed in a middle position of the inner bottom surface of the rectangular frame (210), the first sliding block (235) is slidably connected with the second sliding groove (212), and cross sections of the first sliding block (235) and the second sliding groove (212) are T-shaped.

6. The formaldehyde gas sensor as claimed in claim 1, wherein a baffle (290) is fixedly connected to one end of the inside of the rectangular frame (210), and the cross section of the baffle (290) is L-shaped.