CN219657587U - NMP gas sensor waterproof construction - Google Patents

Abstract

The utility model belongs to the technical field of water prevention of gas sensors, and particularly relates to an NMP gas sensor waterproof structure which comprises a processor shell and an inductor, wherein the inductor is arranged at the bottom end of the processor shell, the bottom end of the processor shell is fixedly connected with a protective cover, the inner wall of the protective cover is fixedly connected with a filter screen, the inner wall of the protective cover is provided with a guide ring, the bottom end of the processor shell is provided with a support rod, the side wall of the support rod is hinged with a torsion spring rod, the torsion spring rod is slidably connected with the top end of the guide ring, the filter screen is knocked through the cooperation of the guide ring and the torsion spring rod, condensed water on the filter screen is vibrated and falls, meshes of the filter screen are prevented from being plugged after the water is condensed, subsequent NMP gas is prevented from being plugged and cannot be contacted with an inductive element, surrounding personnel can obtain accurate information of detection in time, and huge potential safety hazards to the health of the personnel caused by detection errors are avoided.

Description

NMP gas sensor waterproof construction

Technical Field

The utility model belongs to the technical field of water prevention of gas sensors, and particularly relates to a water prevention structure of an NMP gas sensor.

Background

NMP gas, wherein is methyl pyrrolidone, it is a colorless transparent oily liquid, NMP is as the extremely strong aprotic solvent of solubility, the wide application is in industries such as lithium electricity, medicine, pesticide, electronics, petrochemical, in the place environment that relates to existence NMP gas source or leak, need the condition of leaking of the omnidirectional monitoring of NMP detector of installing, avoid the emergence of some incident, and NMP gas volatility is low, can volatilize along with the vapor, there is hygroscopicity, thereby make the NMP gas that leaks fuse with the moisture in the air, at present, adopt gas sensor to detect it, when detecting, NMP gas follows the moisture in the air and gas sensor's sensing element to contact, be equipped with the filter screen that NMP passed through on the sensing element, be used for filtering rubbish in the air, prevent rubbish flyer from entering into the sensor sensing element in the influence to the internal element, but, when the filter screen of NMP gas carried moisture at this moment, moisture condenses on the filter screen, the mesh that easy gas passed through, lead to the follow-up sensing element can't touch the gas, from nmP gas sensor to the follow-up, follow-up NMP gas sensor is followed moisture and the moisture in the air is gone on the filter screen, the moisture is condensed, can's the unable to lead to the follow-up, if the health and the health personnel can't be perceived to be accurate to be had, if the subsequent health and the health is high to the concentration can't be obtained.

Disclosure of Invention

The utility model provides a waterproof structure of an NMP gas sensor, which has the characteristic of preventing and controlling moisture condensation of a sensing element on the NMP gas sensor.

The utility model provides the following technical scheme: including treater casing and inductor, the inductor install in treater casing bottom, treater casing bottom fixedly connected with protection casing, protection casing inner wall fixedly connected with filter screen, the protection casing inner wall is equipped with the guide ring, treater casing bottom is equipped with the bracing piece, the bracing piece lateral wall articulates there is the torsional spring pole, the torsional spring pole with guide ring top sliding connection, torsional spring pole one end with the contact of filter screen top.

The guide ring is characterized in that a plurality of supporting blocks used for supporting the guide ring are fixedly connected to the side wall of the guide ring, and one ends of the supporting blocks are fixedly connected to the inner wall of the protective cover.

Wherein, torsional spring pole bottom fixedly connected with rubber ball, the rubber ball with the contact of filter screen top.

The processor comprises a processor shell, a supporting ring, a supporting rod, a driving motor, a driving gear and a tooth socket, wherein the supporting ring is rotated and connected with the bottom end of the processor shell, the supporting rod is fixedly connected with the bottom end of the supporting ring, the driving motor is installed at the bottom end of the processor shell, the driving gear is fixedly connected with the output end of the driving motor, and the tooth socket corresponding to the driving gear is formed in the inner wall of the supporting ring.

Wherein the bottom end of the processor shell is provided with an annular groove, the top end of the supporting ring is fixedly connected with a limiting ring which is rotationally connected with the inner wall of the annular groove, the bottom end of the limiting ring is rotationally connected with a plurality of balls, and the balls are all slidably connected to the inner wall of the annular groove.

The beneficial effects of the utility model are as follows: through the cooperation use of guide ring and torsion spring pole, realized beating the filter screen, shake the water that condenses on the filter screen and fall, prevent to carry out the shutoff to the mesh of filter screen after the steam condensate, avoid follow-up NMP gas to receive the shutoff of water curtain unable with sensing element contact to make the inductor can normally respond to the gaseous accurate concentration of NMP around, make the personnel around can in time obtain the accurate information that detects, avoid detecting the condition emergence of error to lead to producing huge potential safety hazard to personnel's healthy.

None of the parts of the device are the same as or can be implemented using prior art.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic diagram of a cross-sectional elevation view of the present utility model in motion;

FIG. 3 is an enlarged view of portion A of FIG. 1;

fig. 4 is a schematic top view of the present utility model.

In the figure: 1. a processor housing; 11. an inductor; 12. a driving motor; 121. a drive gear; 13. an annular groove; 2. a protective cover; 21. a filter screen; 22. a guide ring; 23. a support block; 3. a support rod; 31. torsion spring rods; 311. rubber balls; 4. a support ring; 41. a limiting ring; 42. and (3) rolling balls.

Detailed Description

Referring to fig. 1-4, the present utility model provides the following technical solutions: including treater casing 1 and inductor 11, inductor 11 installs in treater casing 1 bottom, and treater casing 1 bottom fixedly connected with protection casing 2, protection casing 2 inner wall fixedly connected with filter screen 21, protection casing 2 inner wall are equipped with guide ring 22, and treater casing 1 bottom is equipped with bracing piece 3, and bracing piece 3 lateral wall articulates there is torsional spring rod 31, torsional spring rod 31 and guide ring 22 top sliding connection, torsional spring rod 31 one end and filter screen 21 top contact.

In this embodiment: the treater casing 1 supports and spacing each subassembly of device, the inductor 11 detects NMP gas in the air, when detecting NMP gas, inductor 11 is with information transfer for treater casing 1, whether the processing element of treater casing 1 inside judges the concentration and exceeds standard, protection casing 2 and filter screen 21 protect inductor 11, filter screen 21 carries out spacing to impurity rubbish in the air, when NMP gas and steam attach on filter screen 21, bracing piece 3 is rotatory in treater casing 1 bottom, bracing piece 3 drives torsion bar 31 and rotates on filter screen 21, the guide ring 22 top is equipped with two archs, every arch is a set of, one of them arch one side is equipped with the recess, the bellied position of guide ring 22 is the level setting, thereby make torsion bar 31 can keep the horizontal rotation, when torsion bar 31 rotates to the guide ring 22 arch on, torsion bar 31 upwards overturns, torsion bar 31 is followed the arch downwards through the torsional bar 31 afterwards, the filter screen 21 is beaten down, the condensate water that will condense on 21 shakes, prevent that the mesh 21 from carrying out the subsequent NMP that detects the air to receive the air, thereby can avoid the accurate response of the air around the shutoff that can's the normal condition to the shutoff of the normal air, can avoid the normal condition to take place, the health of the health condition of the personnel to be detected.

The side wall of the guide ring 22 is fixedly connected with a plurality of supporting blocks 23 for supporting the guide ring 22, and one ends of the supporting blocks 23 are fixedly connected to the inner wall of the protective cover 2; four support blocks 23 support the guide ring 22 and gaps exist between two adjacent support blocks 23, so that the restriction influence of the support blocks 23 on the passage inside the protective cover 2 is avoided.

The bottom end of the torsion spring rod 31 is fixedly connected with a rubber ball 311, and the rubber ball 311 is contacted with the top end of the filter screen 21; when the torsion spring rod 31 knocks the filter screen 21, the torsion spring rod 31 drives the rubber ball 311 to knock the filter screen 21, and the rubber ball 311 is made of rubber elastic materials, so that the situation that noise occurs when the torsion spring rod 31 directly bumps on the filter screen 21 can be reduced by the rubber ball 311.

The bottom end of the processor shell 1 rotates and is connected with a supporting ring 4, the supporting rod 3 is fixedly connected to the bottom end of the supporting ring 4, the bottom end of the processor shell 1 is provided with a driving motor 12, the output end of the driving motor 12 is fixedly connected with a driving gear 121, and the inner wall of the supporting ring 4 is provided with a tooth socket corresponding to the driving gear 121; the support ring 4 is a device for supporting and driving the support rod 3, the support ring 4 rotates to drive the support rod 3 to rotate, and the driving motor 12 drives the support ring 4 through the driving gear 121, so that the support ring 4 can rotate.

An annular groove 13 is formed in the bottom end of the processor shell 1, a limiting ring 41 is fixedly connected to the top end of the supporting ring 4, the limiting ring 41 is rotationally connected to the inner wall of the annular groove 13, a plurality of balls 42 are rotationally connected to the bottom end of the limiting ring 41, and the plurality of balls 42 are slidingly connected to the inner wall of the annular groove 13; the limiting ring 41 is a supporting device between the supporting ring 4 and the processor shell 1, the annular groove 13 limits the limiting ring 41, the limiting ring 41 is prevented from driving the supporting ring 4 to be limited at the bottom end of the processor shell 1, when the limiting ring 41 rotates, the balls 42 at the bottom end of the limiting ring 41 slide with the inner wall of the annular groove 13, and the sliding resistance between the limiting ring 41 and the annular groove 13 is reduced by the balls 42.

The working principle and the using flow of the utility model are as follows: when the device is used, the driving motor 12 is controlled to work, the driving motor 12 drives the driving gear 121 to rotate, the driving gear 121 is connected with meshing grooves on the inner wall of the supporting ring 4 in a meshing mode, so that the supporting ring 4 rotates, the supporting ring 4 drives the supporting rod 3 to rotate, the supporting rod 3 drives the torsion spring rod 31 to rotate, the torsion spring rod 31 rotates and slides at the top end of the guide ring 22, then the torsion spring rod 31 rotates to the boss of the guide ring 22, the boss of the guide ring 22 pushes the torsion spring rod 31 upwards to overturn, then the torsion spring rod 31 downwards overturns along the boss through the torsion spring, then the torsion spring rod 31 downwards knocks the filter screen 21, water condensed on the filter screen 21 shakes down, meshes of the filter screen 21 are blocked after preventing water condensation, follow-up NMP gas is prevented from being blocked by the water curtain, and the inductor can not contact with the sensing element, so that the ambient NMP gas can be sensed normally, ambient personnel can obtain accurate information of detection in time, and huge potential safety hazards caused to the body health of personnel are avoided.

Claims (5)

1. The utility model provides a NMP gas sensor waterproof construction, includes treater casing and inductor, its characterized in that: the sensor install in treater casing bottom, treater casing bottom fixedly connected with protection casing, protection casing inner wall fixedly connected with filter screen, the protection casing inner wall is equipped with the guide ring, treater casing bottom is equipped with the bracing piece, the bracing piece lateral wall articulates there is the torsional spring pole, the torsional spring pole with guide ring top sliding connection, torsional spring pole one end with the contact of filter screen top.

2. The NMP gas sensor water resistant construction of claim 1, wherein: the guide ring side wall fixedly connected with a plurality of be used for right the guide ring carries out the supporting shoe that supports, a plurality of supporting shoe one end all fixedly connected with in the protection casing inner wall.

3. The NMP gas sensor water resistant construction of claim 1, wherein: the bottom end of the torsion spring rod is fixedly connected with a rubber ball, and the rubber ball is contacted with the top end of the filter screen.

4. The NMP gas sensor water resistant construction of claim 1, wherein: the processor is characterized in that the bottom end of the processor shell rotates and is connected with a supporting ring, the supporting rod is fixedly connected to the bottom end of the supporting ring, a driving motor is installed at the bottom end of the processor shell, the output end of the driving motor is fixedly connected with a driving gear, and a tooth socket corresponding to the driving gear is formed in the inner wall of the supporting ring.

5. The NMP gas sensor water resistant construction of claim 4, wherein: the annular groove is formed in the bottom end of the processor shell, the limiting ring is fixedly connected to the top end of the supporting ring and rotatably connected to the inner wall of the annular groove, a plurality of balls are rotatably connected to the bottom end of the limiting ring, and the balls are slidably connected to the inner wall of the annular groove.