CN217639143U

CN217639143U - Gas flow velocity sensor

Info

Publication number: CN217639143U
Application number: CN202221729765.5U
Authority: CN
Inventors: 王成辉
Original assignee: Fujian Mingcheng Laboratory Equipment Technology Co ltd
Current assignee: Fujian Mingcheng Laboratory Equipment Technology Co ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-10-21
Anticipated expiration: 2032-07-07

Abstract

The utility model relates to a sensor technology field just discloses a gas flow velocity transducer, and its structure is including ring flange, display, spliced pole, casing, sealed buffer, gas transmission pipeline, the beneficial effects of the utility model: through adding sealed buffer between gas velocity of flow sensor and gas transmission pipeline, wrap up gas transmission pipeline and ring flange through seal assembly and seal, then can drive flexible pipe box with the help of the pressure impact force that gas produced in transmission process and carry out the removal of left and right sides and make the group of inflating inflate and do the gas filled movement back to the gasbag after stretching out, make the gasbag inflation back can reduce the impact force of buffer assembly to the ring flange that leads to because the impact force of gas, make the junction of sealed buffer and ring flange can not produce the deformation, be convenient for disassemble the change in the future.

Description

Gas flow velocity sensor

Technical Field

The utility model relates to a sensor technology field specifically is a gas flow velocity sensor.

Background

The gas flow velocity sensor is widely applied to industries such as gas, fuel cells, semiconductors, analytical instruments, petrifaction and medical treatment, and is a sensor capable of displaying accumulated flow, instantaneous flow, pressure and temperature, when the gas flow velocity sensor is connected with a pipeline for monitoring, nitrogen gas is transmitted by the pipeline, helium gas and hydrogen gas have pressure intensity in the transmission process to generate impact force, and because the existing equipment is not provided with a fastening device at the joint of the sensor and the pipeline, the joint can be loosened to cause air leakage after the transmission impact force of the gas is received for a long time, potential safety hazards are generated, and because the sensor and the pipeline are connected through flanges, a buffer device is not arranged, after the sensor is used for a long time, the joint of the flanges can be deformed to become firm, the detachment and replacement are not easy, the working strength of operators is increased, and the working efficiency is reduced.

There is therefore a need for a gas flow rate sensor.

SUMMERY OF THE UTILITY MODEL

1. The technical problem to be solved by the utility model

To the problem that exists among the prior art, an object of the utility model is to provide a gas flow velocity transducer, it forms sealedly to have the junction that can make sensor and pipeline, and flange joint to the sensor has the function of buffering, can make the junction produce not hard up and lead to leaking gas in order to solve after receiving gaseous transmission impact force for a long time, produce the potential safety hazard, and because pass through flange joint between sensor and the pipeline, be equipped with buffer not, after long-time use, can make the junction of flange produce to warp and become very firm, be difficult for dismantling and the problem of change.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides a gas flow velocity sensor, its structure is including ring flange, display instrument, spliced pole, casing, sealed buffer, gas transmission pipeline, the equal fixedly connected with ring flange in both ends of casing, the top fixedly connected with spliced pole of casing, the top of spliced pole is equipped with the display instrument, the bottom and the spliced pole fixed connection of display instrument, the sealed buffer of the equal fixedly connected with in both ends of ring flange, sealed buffer keeps away from the equal fixedly connected with gas transmission pipeline of the other end of ring flange.

As optimization, sealed buffer comprises seal assembly, flexible subassembly and connection pad, the equal fixedly connected with connection pad in both ends of flexible subassembly, the equal fixedly connected with seal assembly of the other end that flexible subassembly was kept away from to the connection pad, seal assembly and ring flange fixed connection.

The flange plate on the sensor and the gas pipeline can be sealed by the sealing assembly.

The arrangement of the telescopic assembly can reduce the impact force of the buffer assembly to the flange plate caused by the impact force of gas.

As the optimization, flexible subassembly is inflated group and gasbag by flexible pipe box, arc and is constituteed, the group is inflated to the one end fixedly connected with arc of flexible pipe box, the arc is inflated the group and is equipped with the group, the arc is inflated the other end of group and is equipped with the gasbag, the gasbag is inflated group fixed connection with the arc, the arc is inflated the group and the gasbag all is located the connection pad inside, the other end and the connection pad fixed connection of gasbag.

The telescopic pipe sleeve can move and stretch left and right by the impact force of gas to inflate the air bag.

The arrangement of the air bags can buffer the impact force of the sealing buffer device to the flange plate.

As optimization, seal assembly is including dustcoat, through-hole, sealing strip, adsorption component, spread groove, the spread groove has been seted up on the dustcoat, the inside fixedly connected with sealing strip of dustcoat, annular array has 6 through-holes on the dustcoat, the through-hole runs through in dustcoat and sealing strip, fixedly connected with adsorption component in the through-hole.

The sealing strip is arranged, so that the flange plate can be connected with the sealing assembly in a sealing mode.

Above-mentioned adsorption component's setting can make seal assembly inseparabler and firm to the sealed of ring flange.

Preferably, the sealing strip is movably connected with the flange plate, the adsorption component is movably connected with the flange plate, and the connecting groove is fixedly connected with the connecting disc.

As optimizing, adsorption element comprises sucking disc, pillar, spring, kicking block, well cavity and venthole, the top fixedly connected with pillar of sucking disc, the other end fixedly connected with kicking block that the sucking disc was kept away from to the pillar, be equipped with the spring on the pillar, spring and pillar clearance fit, the one end and the kicking block fixed connection of spring, the other end and the well cavity fixed connection of spring, well cavity and pillar clearance fit, the venthole has been seted up at the top of well cavity, well cavity and through-hole fixed connection.

The flange plate can be adsorbed by the sucker.

Above-mentioned kicking block and hollow cylinder's setting drives the kicking block after the sucking disc receives the extrusion and after the air escape in hollow cylinder internalization, can make the sucking disc form the suction that the negative pressure made the sucking disc more firm.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) The utility model relates to a gas flow velocity transducer, through adding sealed buffer between gas flow velocity transducer and gas transmission pipeline, wrap up gas transmission pipeline and ring flange through seal assembly and seal, then can drive flexible pipe box with the help of the pressure impact force that gas produced in transmission process and carry out the removal of left and right sides and stretch out and draw back the back and make the group of inflating inflate and do the motion of inflating to the gasbag after, make can reduce the impact force of the buffer assembly to the ring flange that leads to because gaseous impact force after the gasbag inflation, make the junction of sealed buffer and ring flange can not produce and warp, be convenient for disassemble in the future and change.

(2) The utility model relates to a gas flow velocity transducer, adsorption component has been add on seal assembly's basis, wrap up the back with the ring flange when the dustcoat, the ring flange seals the ring flange after being connected with the sealing strip, the multiunit sucking disc that is equipped with on the dustcoat can be extruded to the ring flange this moment, the sucking disc adsorbs when on the ring flange receive extrusion back extrusion post push down the air in with the cavity section of thick bamboo from the through-hole discharge, it can firmly adsorb the ring flange to form the negative pressure in the sucking disc this moment, can effectually make the ring flange inseparabler and firm with being connected of sealing strip and dustcoat, make the sensor can not produce the condition of gas leakage because of long-term use.

Drawings

Fig. 1 is a schematic structural view of a gas flow velocity sensor according to the present invention;

fig. 2 is a schematic structural view of the gas flow rate sensor and the sealing buffer device of the present invention;

fig. 3 is a schematic structural view of the sealing and buffering device of the present invention;

FIG. 4 is a schematic view of the unexpanded configuration of the bellows assembly of the present invention;

FIG. 5 is a schematic view of the inflated structure of the air bag of the telescopic assembly of the present invention;

fig. 6 is a schematic structural view of the telescopic assembly and the sensor of the present invention;

fig. 7 is a schematic structural view of the sealing assembly of the present invention;

fig. 8 is a schematic structural view of the adsorption assembly of the present invention;

fig. 9 is a schematic plan view of the adsorption assembly of the present invention.

Reference numbers in the figures: the device comprises a flange plate-1, a display instrument-2, a connecting column-3, a shell-4, a sealing buffer device-5, an air pipeline-6, a sealing component-51, a telescopic component-52, a connecting disc-53, a telescopic pipe sleeve-521, an arc inflating group-522, an air bag-523, an outer cover-511, a through hole-512, a sealing strip-513, an adsorption component-514, a connecting groove-515, a sucking disc-71, an extruding column-72, a spring-73, a top block-74, a hollow cylinder-75 and an air outlet-76.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Example one

Referring to fig. 1-6, a gas flow velocity sensor comprises a flange 1, a display 2, a connecting column 3, a shell 4, a sealing buffer device 5 and a gas pipeline 6, wherein the flange 1 is fixedly connected to both ends of the shell 4, the connecting column 3 is fixedly connected to the top of the shell 4, the display 2 is arranged on the top of the connecting column 3, the bottom of the display 2 is fixedly connected to the connecting column 3, the sealing buffer device 5 is fixedly connected to both ends of the flange 1, and the gas pipeline 6 is fixedly connected to the other end of the sealing buffer device 5 far away from the flange 1.

Specifically, the sealing buffer device 5 comprises a sealing assembly 51, a telescopic assembly 52 and a connecting disc 53, the connecting disc 53 is fixedly connected to two ends of the telescopic assembly 52, the sealing assembly 51 is fixedly connected to the other end, far away from the telescopic assembly 52, of the connecting disc 53, and the sealing assembly 51 is fixedly connected with the flange plate 1.

The sealing assembly 51 is arranged to seal the flange 1 of the sensor and the gas transmission pipeline 6.

The arrangement of the telescopic assembly 52 can reduce the impact force of the buffer assembly on the flange plate 1 caused by the impact force of gas.

Specifically, the telescopic assembly 52 is composed of a telescopic pipe sleeve 521, an arc inflating group 522 and an air bag 523, the arc inflating group 522 is fixedly connected to one end of the telescopic pipe sleeve 521, the arc inflating group 522 is provided with 4 groups, the air bag 523 is arranged at the other end of the arc inflating group 522, the air bag 523 is fixedly connected to the arc inflating group 522, the arc inflating group 522 and the air bag 523 are both located inside the connecting disc 53, and the other end of the air bag 523 is fixedly connected to the connecting disc 53.

The bellows case 521 is provided to inflate the air bag 523 by moving and expanding left and right by the impact force of the gas.

The provision of the air bag 523 can absorb the impact of the seal damper 5 against the flange 1.

The working principle is as follows: when the gas flow velocity sensor is used, the two ends of the sensor are respectively provided with the sealing buffer device 5, the other end of the sealing buffer device 5 is connected with the gas transmission pipeline 6, when gas in the gas transmission pipeline 6 flows through the telescopic component 52, pressure impact force generated by internal gas in the flowing process can enable the telescopic pipe sleeve 521 to be subjected to acting force to move and stretch left and right, the telescopic pipe sleeve 521 can drive the arc inflating group 522 to inflate when stretching out and drawing back, gas generated by the arc inflating group 522 is discharged into the air bag 523, the air bag 523 can expand after being subjected to gas, the expanded air bag 523 can reduce impact force of the buffer component caused by the impact force of the gas on the flange, the joint of the sealing buffer device and the flange cannot deform, and the sealing buffer device 5 can be conveniently disassembled and replaced in the future.

Example two

Referring to fig. 1 to 9, a further implementation is performed on the basis of embodiment 1, in which the sealing assembly 51 described in embodiment 1 includes an outer cover 511, through holes 512, a sealing strip 513, an adsorbing assembly 514, and a connecting groove 515, the outer cover 511 is provided with the connecting groove 515, the sealing strip 513 is fixedly connected inside the outer cover 511, 6 through holes 512 are arranged in an annular array on the outer cover 511, the through holes 512 penetrate through the outer cover 511 and the sealing strip 513, and the adsorbing assembly 514 is fixedly connected inside the through holes 512.

The sealing strip 513 is provided to enable the flange 1 to be sealingly connected to the seal assembly 51.

The adsorption assembly 514 can make the sealing assembly 51 seal the flange plate 1 more tightly and firmly.

Specifically, the sealing strip 513 is movably connected with the flange plate 1, the adsorption component 514 is movably connected with the flange plate 1, and the connecting groove 515 is fixedly connected with the connecting disc 53.

Specifically, the adsorption component 514 comprises a suction cup 71, an extrusion column 72, a spring 73, a top block 74, a hollow cylinder 75 and an air outlet 76, the top of the suction cup 71 is fixedly connected with the extrusion column 72, the other end of the extrusion column 72, which is far away from the suction cup 71, is fixedly connected with the top block 74, the extrusion column 72 is provided with the spring 73, the spring 73 is in clearance fit with the extrusion column 72, one end of the spring 73 is fixedly connected with the top block 74, the other end of the spring 73 is fixedly connected with the hollow cylinder 75, the hollow cylinder 75 is in clearance fit with the extrusion column 72, the air outlet 76 is formed in the top of the hollow cylinder 75, and the hollow cylinder 75 is fixedly connected with a through hole 512.

The flange plate 1 can be sucked by the suction cup 71.

The arrangement of the top block 74 and the hollow cylinder 75 can enable the suction cup 71 to form negative pressure so that the suction force of the suction cup 71 is firmer after the suction cup 71 is squeezed to drive the top block 74 to move in the hollow cylinder 75 to discharge air.

The working principle is as follows: when the flange plate 1 on the gas flow velocity sensor is wrapped by the sealing assembly 51 on the sealing buffer device 5, the flange plate 1 is attached to the sealing strip 513 on the sealing assembly 51, when the sealing strip 513 is attached to the flange plate 1, the suction cup 71 on the adsorption assembly 514 is adsorbed on the flange plate 1 after being extruded by the flange plate 1, at the moment, the flange plate 1 extrudes the suction cup 71 to enable the suction cup 71 to press down to drive the extrusion column 72 to press down the ejector block 74, gas in the hollow cylinder 75 is discharged from the through hole 512 in the outer cover 511 along with the pressing down of the ejector block 74, at the moment, no air exists in the hollow cylinder 75 to enable the suction cup 71 to form negative pressure, the adsorption force of the suction cup on the flange plate 1 can be firmer, and the sealing between the sealing strip 513 and the flange plate 1 is tighter.

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. The utility model provides a gas flow velocity sensor, its structure is including casing (4), the equal fixedly connected with ring flange (1) in both ends of casing (4), the top fixedly connected with spliced pole (3) of casing (4), the top of spliced pole (3) is fixed with display instrument (2), buffer (5) are sealed to the equal fixedly connected with in both ends of ring flange (1), sealed buffer (5) fixedly connected with gas transmission pipeline (6), its characterized in that: the sealing buffer device (5) is composed of a sealing assembly (51), a telescopic assembly (52) and connecting discs (53), the connecting discs (53) are connected to two ends of the telescopic assembly (52), the sealing assembly (51) is fixedly connected to the connecting discs (53), and the sealing assembly (51) is fixedly connected with the flange plate (1);

the telescopic assembly (52) consists of a telescopic pipe sleeve (521), an arc inflating group (522) and an air bag (523), the telescopic pipe sleeve (521) is connected with the air bag (523) through the arc inflating group (522), the arc inflating group (522) and the air bag (523) are both positioned inside the connecting disc (53), and the air bag (523) is connected with the connecting disc (53);

sealing component (51) is including dustcoat (511), connecting groove (515) have been seted up on dustcoat (511), the inside fixedly connected with sealing strip (513) of dustcoat (511), be equipped with through-hole (512) on dustcoat (511), fixedly connected with adsorbs subassembly (514) in through-hole (512).

2. A gas flow rate sensor according to claim 1, wherein: the through holes (512) are arranged in 6 and are arranged in an equidistant mode.

3. A gas flow rate sensor according to claim 1, wherein: sealing strip (513) and ring flange (1) swing joint, adsorption component (514) and ring flange (1) swing joint, connecting groove (515) are connected with connection pad (53).

4. A gas flow rate sensor according to claim 1, wherein: adsorption component (514) comprises sucking disc (71), dummy club (72), spring (73), kicking block (74), cavity section of thick bamboo (75), top fixedly connected with dummy club (72) of sucking disc (71), other end fixedly connected with kicking block (74) of sucking disc (71) are kept away from in dummy club (72), spring (73) and dummy club (72) clearance fit, the one end and the kicking block (74) fixed connection of spring (73), the other end and cavity section of thick bamboo (75) fixed connection, cavity section of thick bamboo (75) and dummy club (72) clearance fit, venthole (76) have been seted up at the top of cavity section of thick bamboo (75), cavity section of thick bamboo (75) and through-hole (512) fixed connection.