CN211477781U

CN211477781U - Atmospheric sampling device for environmental evaluation

Info

Publication number: CN211477781U
Application number: CN202020154205.6U
Authority: CN
Inventors: 郑春凤; 王冲; 刘念
Original assignee: Shandong Xinju'an Safety Technology Co ltd
Current assignee: Shandong Xinju'an Safety Technology Co ltd
Priority date: 2020-02-06
Filing date: 2020-02-06
Publication date: 2020-09-11
Anticipated expiration: 2030-02-06

Abstract

The utility model relates to an atmospheric sampling device for environmental evaluation, which comprises a sampling cylinder, a fixed ring, a piston post, a push sheet, a fixed head, a connecting pipe, an opening and closing mechanism and a sampling mechanism, wherein the fixed ring is fixedly arranged at one cylinder end of the sampling cylinder, the piston post is slidably arranged in a cylinder cavity of the sampling cylinder, the push sheet is fixedly arranged at one end of the piston post, which is far away from the sampling cylinder, the connecting pipe is fixedly arranged at the other end of the sampling cylinder, and the opening and closing mechanism is fixedly arranged in the connecting pipe, the utility model carries out air extraction and sampling through the 80 ml sampling cylinder, has small volume, light weight and convenient carrying, and is very convenient when in specific use, the utility model aims at that when sampling is carried out in partial tank bodies through the sampling pipe provided in the background technology, the outer diameter of the sampling pipe is always smaller than the inner diameter of the sampling hole of, the silica gel paster is attached at jar external wall, blocks that external atmosphere from entering into and guarantees effective sampling rate in this device.

Description

Atmospheric sampling device for environmental evaluation

Technical Field

The utility model relates to an atmosphere adopts the device, in particular to atmospheric sampling device is used in evaluation by ring belongs to evaluation by ring technical field.

Background

In the technical field of environmental evaluation, the problem that the equipment for atmospheric sampling is large in size, inconvenient to carry and complex in operation and low in effective sampling efficiency exist in the actual use process, wherein the effective sampling rate refers to that when sampling is carried out in a part of sealing tanks through sampling pipes, the outer diameters of the sampling pipes are often smaller than the inner diameters of sampling holes of the sealing tanks, so that other partial atmospheres can be sucked in the sampling process, the components of the atmospheric samples which are finally sampled are unreliable, and the atmospheric sampling device for environmental evaluation is required to be designed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an atmospheric sampling device is used in evaluation of circles to there is the big inconvenient carrying of equipment volume in the in-service use that proposes in solving above-mentioned background art, and the problem of effective sampling inefficiency.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an atmospheric sampling device is used in environmental evaluation, includes sampler barrel, solid fixed ring, piston post, push jack, fixed head, connecting pipe, start and stop mechanism and sampling mechanism, a sampler barrel end fixed mounting has solid fixed ring, slidable mounting has the piston post in the sampler barrel inner chamber, sampler barrel one end fixed mounting is kept away from to the piston post has the push jack, sampler barrel other end fixed mounting has the connecting pipe, fixed mounting has start and stop mechanism in the connecting pipe, sampler barrel one end fixed mounting is kept away from to the connecting pipe has sampling mechanism.

As a preferred technical scheme of the utility model, the sampler barrel outer wall is provided with the capacity graduation apparatus, and maximum storage capacity is the milliliter, the external diameter of piston post equals the internal diameter of sampler barrel.

As a preferred technical scheme of the utility model, the operating mechanism includes the telescopic link, the telescopic link sets up in the connecting pipe, and the telescopic link both ends run through the double-phase symmetric position of connecting pipe outer wall respectively, the perpendicular fixedly connected with button of telescopic link one end, the telescopic link is double-phase runs through to the relative side and sets up two gas pockets that set up side by side.

As a preferred technical scheme of the utility model, telescopic link outer wall relative slip cover is equipped with the spacing ring, fixed mounting is at the inner tube wall of connecting pipe, the spacing ring below is provided with the fixing base, fixing base fixed mounting is at the connecting pipe outer wall, the fixing base is close to connecting pipe one end and has seted up the spacing groove, spacing inslot fixed mounting has the spring, the spring other end and telescopic link other end fixed connection, the telescopic link is kept away from button one end and is stretched into to the fixing base in, just the external diameter of telescopic link equals the internal diameter of spacing groove.

As a preferred technical scheme of the utility model, sampling mechanism includes the silica gel paster, fixed head one end fixed connection is kept away from with the connecting pipe to silica gel paster one side, silica gel paster opposite side fixedly connected with flexible rubber hose, the flexible rubber hose inner chamber sets up with silica gel paster inner chamber and connecting pipe inner chamber intercommunication.

Compared with the prior art, the beneficial effects of the utility model are that:

firstly, the utility model performs air extraction and sampling through a sampling tube of 80 ml, has small volume, light weight and convenient carrying, and is very convenient in specific use;

the specific operation steps are as follows: firstly, a rubber hose is placed in a sampling tank body, then a silica gel patch is attached to the outer surface of the sampling tank body, one end, far away from a push sheet, of a piston column is in contact with a fixed head, namely, the piston column is located at a scale mark, then the push sheet is pulled by one hand, and a button is synchronously pressed by the other hand, at the moment, because the negative pressure in a sampling cylinder is unobstructed and the inside of a connecting pipe is unobstructed, the whole gas path of the device is unobstructed, so that the airflow in the sampling tank body is pressed;

secondly, the utility model discloses when sampling through the sampling pipe in the part jar body that proposes in the background art, the external diameter of sampling pipe often is less than jar internal diameter special design silica gel paster in body sampling hole, when rubber hose stretched into to jar internal sampling, the silica gel paster was attached at external wall of jar, stops external atmosphere and enters into and guarantees effective sampling rate in this device.

Drawings

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

FIG. 2 is a schematic view of the mounting structure of the opening and closing mechanism and the connecting pipe of the present invention;

fig. 3 is a schematic view of the three-dimensional structure of a part of the opening and closing mechanism of the present invention.

In the figure: 1. a sampling tube; 2. a fixing ring; 3. a piston post; 4. pushing the sheet; 5. a fixed head; 6. a connecting pipe; 7. an opening and closing mechanism; 8. a sampling mechanism; 71. a telescopic rod; 72. a button; 73. air holes; 74. a limiting ring; 75. a fixed seat; 76. a spring; 81. sticking a silica gel sheet; 82. a rubber hose.

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.

Please refer to fig. 1-3, the utility model provides an atmospheric sampling device is used in environmental evaluation, including sampler barrel 1, solid fixed ring 2, piston post 3, push jack 4, fixed head 5, connecting pipe 6, hoist mechanism 7 and sampling mechanism 8, 1 a barrel end fixed mounting of sampler barrel has solid fixed ring 2, slidable mounting has piston post 3 in 1 interior barrel chamber of sampler barrel, 1 one end fixed mounting of sampler barrel 4 is kept away from to piston post 3, 1 other end fixed mounting of sampler barrel has connecting pipe 6, fixed mounting has hoist mechanism 7 in the connecting pipe 6, 1 one end fixed mounting of sampler barrel has sampling mechanism 8 is kept away from to connecting pipe 6.

Wherein, 1 outer wall of sampling tube is provided with the capacity scale, and maximum storage capacity is 80 milliliters, and the external diameter of piston post 3 equals the internal diameter of sampling tube 1, guarantees that the leakproofness is good.

Wherein, the opening and closing mechanism 7 includes the telescopic link 71, and the telescopic link 71 sets up in the connecting pipe 6 to the double-phase symmetric position of connecting pipe 6 outer wall is run through respectively at telescopic link 71 both ends, the perpendicular fixedly connected with button 72 of telescopic link 71 one end, two opposite sides of telescopic link 71 run through and set up two gas pockets 73 that set up side by side, the internal diameter of gas pocket 73 is less than the external diameter of telescopic link 71, and when spring 76 was located normal condition, two gas pockets 73 all were located outside the connecting pipe 6.

Wherein, telescopic link 71 outer wall relative slip cover is equipped with spacing ring 74, fixed mounting is at the interior pipe wall of connecting pipe 6, spacing ring 74 below is provided with fixing base 75, fixing base 75 fixed mounting is at the 6 outer walls of connecting pipe, the fixing base 75 is close to 6 one ends of connecting pipe and has seted up the spacing groove, spacing inslot fixed mounting has spring 76, the spring 76 other end and telescopic link 71 other end fixed connection, telescopic link 71 is kept away from button 72 one end and is stretched into to fixing base 75 in, and telescopic link 71's external diameter equals the internal diameter of spacing groove.

Wherein, sampling mechanism 8 includes

silica gel paster

81, and 5 one end fixed connection of fixed head are kept away from with connecting pipe 6 to silica gel paster 81 one side, and silica gel paster 81 opposite side fixedly connected with rubber hose 82, rubber hose 82 inner chamber and silica gel paster 81 inner chamber and the setting of connecting pipe 6 inner chamber intercommunication guarantee that the gas circuit is unobstructed.

Principle of operation

During sampling: firstly, a rubber hose 82 is placed in a sampling tank body, then a silica gel patch 81 is attached to the outer surface of the sampling tank body, one end, far away from a push sheet 4, of a piston column 3 is in contact with a fixed head 5, namely, the piston column is located at a 0-scale mark, then the push sheet 4 is pulled by one hand, and a button 72 is synchronously pressed by the other hand, at the moment, because the negative pressure in a sampling cylinder 1 is generated and the interior of a connecting pipe 6 is smooth, the whole gas path of the device is smooth, so that the airflow in the sampling tank body is pressed;

after sampling is finished: at the moment, the button 72 is loosened, the spring 76 is elastically restored, the telescopic rod 71 is lifted, and the two air holes 73 are ejected out of the connecting pipe 6, so that the air path inside the connecting pipe 6 is closed, and the atmosphere after sampling is guaranteed to be stored in a closed space and is not polluted.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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 an atmospheric sampling device is used in environmental evaluation, includes sampler barrel (1), solid fixed ring (2), piston post (3), push jack (4), fixed head (5), connecting pipe (6), start-stop mechanism (7) and sampling mechanism (8), its characterized in that, a sampler barrel (1) a barrel fixed mounting has solid fixed ring (2), slidable mounting has piston post (3) in sampler barrel (1) inner chamber, sampling barrel (1) one end fixed mounting is kept away from in piston post (3) has push jack (4), sampler barrel (1) other end fixed mounting has connecting pipe (6), fixed mounting has start-stop mechanism (7) in connecting pipe (6), sampler barrel (1) one end fixed mounting is kept away from in connecting pipe (6) has sampling mechanism (8).

2. The atmospheric sampling device for environmental assessment according to claim 1, wherein: the outer wall of the sampling tube (1) is provided with a capacity dial gauge, the maximum storage capacity is 80 milliliters, and the outer diameter of the piston column (3) is equal to the inner diameter of the sampling tube (1).

3. The atmospheric sampling device for environmental assessment according to claim 1, wherein: the opening and closing mechanism (7) comprises an expansion link (71), the expansion link (71) is arranged in the connecting pipe (6), two ends of the expansion link (71) penetrate through two symmetrical positions of the outer wall of the connecting pipe (6) respectively, one end of the expansion link (71) is vertically and fixedly connected with a button (72), and two opposite side edges of the expansion link (71) penetrate through two air holes (73) which are arranged in parallel.

4. An atmospheric sampling device for environmental assessment according to claim 3, wherein: the outer wall of the telescopic rod (71) is sleeved with a limiting ring (74) in a relative sliding mode, the limiting ring (74) is fixedly installed on the inner wall of the connecting pipe (6), a fixing seat (75) is arranged below the limiting ring (74), the fixing seat (75) is fixedly installed on the outer wall of the connecting pipe (6), a limiting groove is formed in one end, close to the connecting pipe (6), of the fixing seat (75), a spring (76) is fixedly installed in the limiting groove, the other end of the spring (76) is fixedly connected with the other end of the telescopic rod (71), one end, far away from the button (72), of the telescopic rod (71) extends into the fixing seat (75), and the outer diameter of the telescopic rod (71) is equal to the.

5. The atmospheric sampling device for environmental assessment according to claim 1, wherein: sampling mechanism (8) include silica gel paster (81), fixed head (5) one end fixed connection is kept away from with connecting pipe (6) to silica gel paster (81) one side, silica gel paster (81) opposite side fixedly connected with rubber hose (82), rubber hose (82) inner chamber and silica gel paster (81) inner chamber and connecting pipe (6) inner chamber intercommunication set up.