CN211205937U

CN211205937U - Portable gas sampler

Info

Publication number: CN211205937U
Application number: CN201922104902.0U
Authority: CN
Inventors: 石福泰; 刘志文; 史建设; 李文涛; 傅琦; 王志宇
Original assignee: Dongxia Coal Mine Of Gansu Huating Coal Power Co ltd; China University of Mining and Technology CUMT
Current assignee: Dongxia Coal Mine Of Gansu Huating Coal Power Co ltd; China University of Mining and Technology CUMT
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-08-07
Anticipated expiration: 2029-11-29

Abstract

The utility model provides a portable gas sampler, including outer jar (1), one end at the outer jar sets up air source interface (1.1), the other end sets up sampling opening (1.2), drive wheel (2) rotatably install and put at the inside central point of outer jar, piston (3) set up to two, the external diameter of two pistons all with the internal diameter phase-match of outer jar and use the drive wheel to set up and slidable in the both ends of outer jar as central symmetry, the piston is respectively through the outer periphery fixed connection of crankshaft connecting rod mechanism (4) and drive wheel, install respectively at one side both ends of outer jar reducer union (5) with the outer jar intercommunication, reducer union, air source interface, sampling opening all controls it to open and close through check valve (6). The utility model discloses simple structure, convenient operation when improving gaseous sampling efficiency, reduces equipment volume, portable.

Description

Portable gas sampler

Technical Field

The utility model relates to a gas sampling ware specifically is a portable gas sampling ware, belongs to gas sampling technical field.

Background

A gas sampler is a device for collecting a gas sample to provide a sample for subsequent gas detection.

In recent years, the mining scale of coal mines is continuously increased, the mining depth is continuously increased, and the production safety problem becomes one of the most important problems of coal mines in the coal production process.

The portable gas sampler for the mine sold in the market at present mainly comprises a glass tube sampler and a CZY-50 sampler, but the glass tube sampler and the CZY-50 sampler are both collected by manpower, so that the efficiency is low; in order to improve the gas collection efficiency, a collection device assisted by electric power is provided, but for the purpose of being convenient to carry, a large-capacity battery cannot be assembled for the collection device assisted by electric power, so that frequent charging is required, the underground long-term use is inconvenient, and certain danger exists in the use process due to the existence of electric appliances.

Disclosure of Invention

The utility model aims at providing a portable gas sampler, simple structure, convenient operation when improving gaseous sampling efficiency reduces equipment volume, portable.

In order to realize above-mentioned purpose, the utility model provides an including the outer jar, one end at the outer jar sets up air source interface, the other end sets up the sample connection, still include the drive wheel, the piston, the drive wheel is rotatably installed and is put at the inside central point of outer jar, the piston sets up to two, the external diameter of two pistons all sets up in the both ends of outer jar with the internal diameter phase-match of outer jar and uses the drive wheel to set up and slidable as central symmetry, the piston is respectively through the last spliced pole of fixed setting on connecting rod and the drive wheel, spliced pole fixed connection down, install respectively at one side both ends of outer jar and the reducer union of outer jar intercommunication, the reducer union, air source interface, the sample connection all controls it through the check valve.

As a preferred technical solution of the present invention, the present invention further comprises a power device for controlling the rotation of the driving wheel, wherein the power device is driven by a spring, a spring opening adapted to the spring is provided at the center of the driving wheel, and the spring is inserted into the spring opening to rotate to apply force to rotate the driving wheel; a stop lever socket is arranged on one side of the spring opening, the stop lever socket limits the rotation of the driving wheel through a stop lever matched with the stop lever socket, and through holes are respectively arranged on the outer cylinder corresponding to the spring opening and the stop lever socket; the utility model discloses when no external air supply supplies with, it is rotatory to drive the drive wheel through clockwork spring drive, under this condition, the air supply interface, the sample connection all can regard as gaseous collection mouthful to use, open the air supply interface, the check valve of sample connection, it is rotatory for power drive wheel to insert the clockwork spring in the clockwork spring mouth, the piston at both ends all moves to outer jar inside, then regard as the air supply interface of gaseous collection mouthful, the outside gas is all gathered to the sample connection, when clockwork spring rotation motionless, close the air supply interface, the check valve of sample connection, open reducer union's check valve simultaneously, and at the external air bag of adopting of reducer union department, under the effect of clockwork spring drive power, the piston resets, then the gas of gathering can discharge in the sample bag through the reducer union, accomplish gaseous collection.

The balls are arranged on the outer circumference of the driving wheel, and the balls can reduce the friction resistance generated when the driving wheel rotates.

The driving wheel is erected in the outer cylinder through a bracket, and the sum of the diameters of the driving wheel and the ball is set to be 3/5 of the diameter of the outer cylinder for facilitating the rotation of the driving wheel.

Sampling port, air supply interface, reducing joint department can adopt the check valve to control one-way admitting air or one-way exhaust, the utility model provides an optimal scheme can install the magnet valve on the sampling port, and the magnet valve passes through two homopolar magnet face contacts, and the conventionality is in the state of opening, inlays by a cylindrical magnet and locates to adopt the gas port, regard as the diaphragm by a thin disk magnet again, when there is atmospheric pressure to lead to gaseous backward flow at the sampling port, the magnet valve straining bounces when no atmospheric pressure.

In order to prevent air from escaping to the air chamber where the piston is located during the entire gas collection process, the piston is fitted with a sealing ring.

Compared with the prior art, the outer cylinder of the utility model is internally provided with two pistons, the outer diameters of the pistons are matched with the inner diameter of the outer cylinder and are symmetrically arranged by taking the driving wheel as the center and can be slidably arranged at the two ends of the outer cylinder, the pistons are respectively fixedly connected with the driving wheel through the connecting rod, namely, the inner part of the outer cylinder of the utility model adopts a bidirectional piston structure, the piston at one side is pushed to move by the power of the external air source of the air source interface, the piston moves to drive the driving wheel to rotate, and then the piston at the other side is pulled to move towards the inner part of the outer cylinder, thereby sucking air through the sampling port, closing the one-way valve of the sampling port when the external air source stops supplying air, opening the one-way valve of the reducing joint, and simultaneously connecting the air sample bag at the reducing joint, the pressure of the reducing joint is relieved, so that the gas collected by the sampling port leaks through the reducing joint and is collected by the sampling bag, the gas is discharged, and the bidirectional piston is reset; when no air source power is available, the driving wheel can be driven to rotate by the preferable technical proposal of the utility model through the spring, under the condition, the air source interface and the sampling port can be used as the air collecting port, the one-way valve of the air source interface and the sampling port is opened, the spring is inserted into the spring port to rotate and supply force, the driving wheel rotates, the pistons at both ends move towards the inner part of the outer cylinder, the air source interface and the sampling port which are used as the air collecting port collect the external air, when the spring is not rotating, the one-way valve of the air source interface and the sampling port is closed, the one-way valve of the reducing joint is opened at the same time, the air collecting bag is externally connected at the reducing joint, the piston resets under the action of the spring driving force, the collected air can be discharged into the sampling bag through the reducing joint, the air collection is completed, the utility model has simple structure and convenient operation, the gas sampling efficiency is improved, and meanwhile, the volume of the device is reduced, and the device is convenient to carry.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a bottom view (bottom view, see schematic of the linkage to the drive wheel) of FIG. 1;

fig. 3 is a schematic structural view of the clockwork spring of the present invention.

In the figure: 1. the spring comprises an outer cylinder, 1.1, an air source interface, 1.2, a sampling port, 1.3, a magnet valve, 2, a driving wheel, 2.1, an upper connecting column, 2.2, a lower connecting column, 3, a piston, 4, a connecting rod, 5, a reducing joint, 6, a one-way valve, 7, a spring wheel, 7.1, a spring hole, 7.2, a stop lever socket, 7.3 and a spring.

Detailed Description

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

As shown in fig. 1-3, a portable gas sampler, including outer cylinder 1, set up air supply interface 1.1 in the one end of outer cylinder 1, the other end sets up sampling port 1.2, still include drive wheel 2, piston 3, drive wheel 2 is rotatably installed at the inside central point of outer cylinder 1 and is put, piston 3 sets up to two, the external diameter of two pistons 3 all with the internal diameter phase-match of outer cylinder 1 and use drive wheel 2 as central symmetry setting and slidable and set up in the both ends of outer cylinder 1, piston 3 respectively through connecting rod 4 and drive wheel 2 on the fixed upper connecting post 2.1 that sets up, lower connecting post 2.2 fixed connection, install respectively at one side both ends of outer cylinder 1 with the reducing union 5 of outer cylinder 1 intercommunication, reducing union 5, air supply interface 1.1, sampling port 1.2 all controls it to open and close through check valve 6.

The utility model also comprises a power device for controlling the rotation of the driving wheel 2, the power device is driven by a spring, a spring opening 7.1 which is matched with the spring 7.3 is arranged at the central position of the driving wheel 2, and the spring 7.3 is inserted into the spring opening 7.1 to rotate to give force to rotate the driving wheel 2; a stop lever socket 7.2 is arranged on one side of the spring opening 7.1, the stop lever socket 7.2 limits the rotation of the driving wheel through a stop lever matched with the stop lever, and through holes are respectively arranged on the outer cylinder 1 corresponding to the spring opening 7.1 and the stop lever socket 7.2.

Balls are provided on the outer circumference of the drive wheel 2.

The driving wheel 2 is erected in the outer cylinder 1 through a bracket, and the sum of the diameters of the driving wheel 2 and the ball is 3/5 of the diameter of the outer cylinder.

Install magnet valve 1.3 on sampling port 1.2, magnet valve 1.3 is in the open mode through two homopolar magnet face contacts, and is in the conventional, inlays in sampling gas mouth department by a cylindrical magnet, and by a thin disk magnet as the diaphragm again, when sampling gas port has atmospheric pressure to lead to gaseous backward flow, the fastening of magnet valve is bounced when no atmospheric pressure.

The piston 3 is provided with a sealing ring.

The connecting rod, the clockwork spring and the stop lever used in the utility model are all conventional structures, and are not described too much here.

The utility model arranges two pistons in the outer cylinder, the outer diameters of the pistons are matched with the inner diameter of the outer cylinder, the pistons are symmetrically arranged by taking the driving wheel as the center and can be arranged at the two ends of the outer cylinder in a sliding way, the pistons are respectively fixedly connected with the outer circumferential wall of the driving wheel through the crankshaft connecting rod mechanism, namely, the inner part of the outer cylinder of the utility model adopts a bidirectional piston structure, the piston at one side is pushed to move by the power of the external air source of the air source interface, the piston moves to drive the driving wheel to rotate, and then the piston at the other side is pulled to move towards the inner part of the outer cylinder, thereby sucking air through the sampling port, closing the one-way valve of the sampling port when the external air source stops supplying air, opening the one-way valve of the reducing joint, and simultaneously connecting the air sample bag at the reducing joint, the pressure of the reducing joint is relieved, so that the gas collected by the sampling port leaks through the reducing joint and is collected by the sampling bag, the gas is discharged, and the bidirectional piston is reset; when no air source power is available, the driving wheel can be driven to rotate by the preferable technical proposal of the utility model through the spring, under the condition, the air source interface and the sampling port can be used as the air collecting port, the one-way valve of the air source interface and the sampling port is opened, the spring is inserted into the spring port to rotate and supply force, the driving wheel rotates, the pistons at both ends move towards the inner part of the outer cylinder, the air source interface and the sampling port which are used as the air collecting port collect the external air, when the spring is not rotating, the one-way valve of the air source interface and the sampling port is closed, the one-way valve of the reducing joint is opened at the same time, the air collecting bag is externally connected at the reducing joint, the piston resets under the action of the spring driving force, the collected air can be discharged into the sampling bag through the reducing joint, the air collection is completed, the utility model has simple structure and convenient operation, the gas sampling efficiency is improved, and meanwhile, the volume of the device is reduced, and the device is convenient to carry.

Claims

1. The utility model provides a portable gas sampler, including outer jar (1), one end at outer jar (1) sets up air source interface (1.1), the other end sets up sampling opening (1.2), a serial communication port, still include drive wheel (2), piston (3), drive wheel (2) are rotatably installed and are put at outer jar (1) inside central point, piston (3) set up to two, the external diameter of two piston (3) all with the internal diameter phase-match of outer jar (1) and use drive wheel (2) to set up and slidable sets up in the both ends of outer jar (1) as central symmetry, piston (3) are respectively through fixed last spliced pole (2.1) that sets up on connecting rod (4) and drive wheel (2), lower spliced pole (2.2) fixed connection, reducer union (5) of intercommunication with outer jar (1) are installed respectively at one side both ends of outer jar (1), reducer union (5), air source interface (1.1), The sampling ports (1.2) are controlled to be opened and closed through one-way valves (6).

2. A portable gas sampler as claimed in claim 1 further comprising a power unit for controlling the rotation of the drive wheel (2), the power unit being spring-driven, a spring mouth (7.1) being provided at the center of the drive wheel (2) for fitting with a spring (7.3), the spring (7.3) being inserted into the spring mouth (7.1) to rotate to impart a force to rotate the drive wheel (2); a stop lever socket (7.2) is arranged on one side of the spring opening (7.1), the stop lever socket (7.2) limits the rotation of the driving wheel through a stop lever matched with the stop lever, and through holes are respectively arranged on the outer cylinder (1) corresponding to the spring opening (7.1) and the stop lever socket (7.2).

3. A portable gas sampler as claimed in claim 2 wherein balls are provided on the outer circumference of the drive wheel (2).

4. A portable gas sampler as claimed in claim 3 wherein the drive wheel (2) is mounted in the outer cylinder (1) by brackets and the sum of the diameters of the drive wheel (2) and the balls is 3/5 of the diameter of the outer cylinder.

5. A portable gas sampler as claimed in claim 1 or claim 2 wherein the magnet valve (1.3) is mounted on the sampling port (1.2) and the magnet valve (1.3) is normally open by the face contact of two homopolar magnets, with a cylindrical magnet inserted in the sampling port and a thin disc magnet acting as a diaphragm, the magnet valve buckling when there is gas pressure in the sampling port causing gas to flow back and springing when there is no gas pressure.

6. A portable gas sampler as claimed in claim 3 wherein the piston (3) is provided with a sealing ring.