CN219996652U

CN219996652U - Analysis sampling device

Info

Publication number: CN219996652U
Application number: CN202321236286.4U
Authority: CN
Inventors: 余刚; 谢山; 靖剑中; 王松
Original assignee: Guizhou Province Coal Products Quality Supervision And Inspection Institute
Current assignee: Guizhou Province Coal Products Quality Supervision And Inspection Institute
Priority date: 2023-05-22
Filing date: 2023-05-22
Publication date: 2023-11-10
Anticipated expiration: 2033-05-22

Abstract

The utility model belongs to the technical field of sampling equipment, and particularly relates to an analysis sampling device which comprises an extraction cylinder and a discharge pipe, wherein a shell is arranged below the extraction cylinder, a piston is arranged in the extraction cylinder, a pull rod is vertically arranged at the top end of the piston, a pull plate is arranged at the top end of the pull rod, and an anti-reverse assembly is arranged at the bottom end of the extraction cylinder; the bottom of casing is provided with the closing plate, and the inlet port has been seted up at the middle part of closing plate, and the middle part of casing runs through and is provided with seal assembly, and top one side of casing is provided with gas mixing assembly and vacuum pump respectively. The utility model adopts the vacuum pump to vacuumize the shell, then puts the shell into the gas chamber, presses the sealing component downwards to open the gas inlet, and at the moment, the gas to be detected rapidly enters the shell due to the air pressure difference, the preliminary extraction of the sample can be realized by loosening the sealing component, and the sample can be further extracted by utilizing the piston and the extraction cylinder by pulling the pulling plate.

Description

Analysis sampling device

Technical Field

The utility model belongs to the technical field of sampling equipment, and particularly relates to an analysis sampling device.

Background

The infrared carbon-sulfur analyzer is mainly used for analyzing the content of carbon and sulfur elements in ferrous metal, nonferrous metal, rare earth metal inorganic matters, ores, ceramics and other substances in the industries of metallurgy, machinery, commercial inspection, scientific research, chemical industry and the like; the infrared carbon and sulfur analyzer of the analyzer adopts a high-frequency induction heating furnace to burn a sample, and the infrared absorption method is used for testing the mass fractions of two elements of carbon and sulfur in the sample; the existing sampling devices of some infrared carbon-sulfur analyzers are inconvenient for workers to sample in a stable operation mode, are inconvenient for taking out sampling reagents, reduce efficiency and cannot meet the use requirements of the workers;

through investigation, patent number CN214150065U discloses an infrared carbon and sulfur analyzer sampling device, and the technology discloses a device comprising a mounting seat, a mounting bolt, a connecting seat, a handle, a connecting mechanism and an extracting mechanism; the surface of the top side of the mounting seat is fixedly connected with a handle, the surface of the top side of the mounting seat is in threaded connection with a mounting bolt, and the surface of the mounting seat is fixedly connected with a connecting pipe; the connecting mechanism comprises a connecting pipe, a connecting cylinder, a threaded cylinder, a connecting valve and an extraction pipe, wherein the top end of the connecting pipe is fixedly communicated with the bottom end of the connecting cylinder, the threaded cylinder is in threaded connection with the top end of the connecting cylinder, a mounting bolt is arranged on the surface of the outer side of the connecting cylinder, the bottom end of the connecting pipe is fixedly communicated with the top end of the extraction pipe, and the inner cavity of the threaded cylinder is provided with the technical characteristics of a one-way valve and the like;

however, in the practical use process, for the sampling device with a single ventilation port, the sampling device only relies on the extraction pipe to extract air, so that the detection gas cannot be completely extracted in many times, and thus interference is easily brought to an analysis sample.

In order to solve the above problems, the present utility model provides an analysis sampling apparatus.

Disclosure of Invention

To solve the problems set forth in the background art. The utility model provides an analysis sampling device which has the characteristics of high gas extraction speed and uniform mixing of detected gases.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the analysis sampling device comprises an extraction cylinder, wherein a discharge pipe is arranged at one side of the bottom of the extraction cylinder, a shell is arranged below the extraction cylinder, the extraction cylinder is communicated with the shell through a connecting ring, a piston is arranged in the extraction cylinder, a pull rod is vertically arranged at the top end of the piston, a pull plate is arranged at the top end of the pull rod, and an anti-reversion assembly is arranged at the bottom end of the extraction cylinder; the bottom of casing is provided with the closing plate, the inlet port has been seted up at the middle part of closing plate, the middle part of casing run through be provided with inlet port matched with seal assembly, top one side of casing is provided with gas mixing subassembly and vacuum pump respectively.

In one preferred aspect of the analysis sampling device of the present utility model, the bottom of the extraction cylinder is provided with external threads, and the inside of the connecting ring is provided with internal threads engaged with the bottom of the extraction cylinder.

In one preferable aspect of the analysis sampling device of the present utility model, a first through hole is formed at the top end of the housing and right below the extraction cylinder, and a filter screen is disposed inside the first through hole.

As an preferable analysis sampling device, the anti-reverse component comprises a sealing plug and a baffle ring which are fixedly connected with the inner side of the bottom of the extraction cylinder, wherein an inverted conical hole is formed in the middle of the sealing plug, the top end of the sealing plug is abutted to a sealing ball, and a first compression spring is connected between the sealing ball and the baffle ring.

As an preferable analysis sampling device, the sealing component comprises a pressing rod vertically penetrating through the middle of the shell, the bottom end of the pressing rod is connected with a pressing plate, a tension spring is connected between the top end of the pressing plate and the inner top end of the shell, and the top end of the pressing rod is sleeved with a first corrugated sleeve in sealing connection with the shell.

As an preferable analysis sampling device of the utility model, the section of the air inlet hole is in a step-shaped structure, and the top end of the pressing plate is embedded with a sealing ring which is abutted against the air inlet hole.

As one preferable analysis sampling device of the utility model, the gas mixing component comprises a second corrugated sleeve which is in sealing connection with the shell, a second through hole is formed at the top end of the shell and right below the second corrugated sleeve, and a second compression spring is arranged between the top end in the second corrugated sleeve and the top end of the shell.

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

1. the utility model adopts the vacuum pump to vacuumize the shell, then puts the shell into the gas chamber, presses the sealing component downwards to open the gas inlet, and at the moment, the gas to be detected rapidly enters the shell due to the air pressure difference, the preliminary extraction of the sample can be realized by loosening the sealing component, and the sample can be further extracted by utilizing the piston and the extraction cylinder by pulling the pulling plate.

2. Through setting up the gas mixing subassembly, can guarantee the more even of gas mixing in the casing to improve the accuracy of testing result, the filter screen can treat the gaseous filtration of detecting simultaneously, thereby avoids impurity to cause the interference to sample detection.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a partial enlarged view at B in fig. 2.

In the figure: 1. a drawing cylinder; 2. a discharge pipe; 3. a housing; 4. a connecting ring; 5. a piston; 6. a pull rod; 7. pulling a plate; 8. an anti-reverse assembly; 801. a sealing plug; 802. a baffle ring; 803. a sealing ball; 804. a first compression spring; 9. a sealing plate; 10. an air inlet hole; 11. a seal assembly; 1101. a compression bar; 1102. a pressing plate; 1103. a tension spring; 1104. a first bellows; 1105. a seal ring; 12. a gas mixing assembly; 1201. a second bellows; 1202. a second through hole; 1203. a second compression spring; 13. a vacuum pump; 14. a first through hole; 15. and (3) a filter screen.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1 and 2;

the analysis sampling device comprises an extraction cylinder 1, wherein a discharge pipe 2 is arranged at one side of the bottom of the extraction cylinder 1, a shell 3 is arranged below the extraction cylinder 1, the extraction cylinder 1 is communicated with the shell 3 through a connecting ring 4, a piston 5 is arranged in the extraction cylinder 1, a pull rod 6 is vertically arranged at the top end of the piston 5, a pull plate 7 is arranged at the top end of the pull rod 6, and an anti-reversion component 8 is arranged at the bottom end of the extraction cylinder 1; the bottom of casing 3 is provided with closing plate 9, and inlet port 10 has been seted up at closing plate 9's middle part, and the middle part of casing 3 runs through and is provided with the seal assembly 11 with inlet port 10 matched with, and top one side of casing 3 is provided with gas mixing assembly 12 and vacuum pump 13 respectively.

It should be noted that: in this embodiment, the extraction cylinder 1 is made of transparent material, and scale values are uniformly provided on the outer wall of the extraction cylinder 1, so that the sample extraction amount can be controlled conveniently.

In this embodiment: the vacuum pump 13 is adopted to vacuumize the shell 3, then the shell 3 is put into a gas chamber, the sealing assembly 11 is pressed downwards to open the gas inlet 10, at the moment, the gas to be detected rapidly enters the shell 3 due to the air pressure difference, the sealing assembly 11 is loosened to realize the primary extraction of the sample, and the pulling plate 7 is pulled to further extract the sample by the piston 5 and the extraction cylinder 1; by providing the gas mixing assembly 12, more uniform mixing of the gas in the housing 3 can be ensured, thereby improving the accuracy of the detection result.

In an alternative embodiment, the bottom of the extraction cartridge 1 is provided with external threads, and the inside of the connection ring 4 is provided with internal threads that engage the bottom of the extraction cartridge 1.

In this embodiment: the extraction cylinder 1 is fixedly connected with the shell 3 in a screwed mode, so that the extraction cylinder 1 is convenient to install and detach, and the stability of sample extraction is guaranteed.

In an alternative embodiment, the top end of the housing 3 and right below the extraction cylinder 1 is provided with a first through hole 14, and a filter screen 15 is arranged inside the first through hole 14.

In this embodiment: the filter screen 15 can filter the gas to be detected, so as to avoid the interference of impurities on the detection of the sample.

As shown in fig. 3;

in an alternative embodiment, the anti-reverse component 8 includes a sealing plug 801 fixedly connected to the inner side of the bottom of the extraction barrel 1 and a baffle ring 802, the middle of the sealing plug 801 is provided with an inverted conical hole, the top end of the sealing plug 801 is abutted with a sealing ball 803, and a first compression spring 804 is connected between the sealing ball 803 and the baffle ring 802.

In this embodiment: when the extraction cylinder 1 is in air intake, the sealing ball 803 presses the first compression spring 804 and is separated from the top of the sealing plug 801, and when in air exhaust, the sealing ball 803 is in sealing abutting joint with the top of the sealing plug 801 under the action of the first compression spring 804, so that the sample leakage is prevented.

In an alternative embodiment, the sealing assembly 11 comprises a compression bar 1101 vertically penetrating through the middle of the housing 3, a compression plate 1102 is connected to the bottom end of the compression bar 1101, a tension spring 1103 is connected between the top end of the compression plate 1102 and the inner top end of the housing 3, and a first corrugated sleeve 1104 in sealing connection with the housing 3 is sleeved on the top end of the compression bar 1101.

As shown in fig. 4;

in an alternative embodiment, the section of the air inlet hole 10 is in a step-shaped structure, and the top end of the pressing plate 1102 is embedded with a sealing ring 1105 which is abutted against the air inlet hole 10.

In this embodiment: the first bellows 1104 is pressed down, at this time, the compression bar 1101 descends and drives the compression plate 1102 and the sealing ring 1105 to separate from the air inlet 10, the sample gas enters the housing 3 through the air inlet 10, the first bellows 1104 is loosened, and the compression plate 1102 and the sealing ring 1105 are reset under the action of the tension spring 1103, so that gas leakage is prevented.

In an alternative embodiment, the gas mixing assembly 12 includes a second bellows 1201 sealingly connected to the housing 3, a second through hole 1202 is formed at the top end of the housing 3 and directly below the second bellows 1201, and a second compression spring 1203 is disposed between the top end of the second bellows 1201 and the top end of the housing 3.

In this embodiment: the second bellows 1201 is repeatedly pressed, and the sample gas in the housing 3 starts to flow and achieve uniform mixing due to the repeated variation of the pressure inside the housing 3.

The working principle and the using flow of the utility model are as follows: a power supply and a controller which are electrically connected with the vacuum pump 13 are arranged on the shell 3, the vacuum pump 13 is started by the controller to form vacuum in the shell 3, the shell 3 is placed into a gas chamber and the first corrugated sleeve 1104 is pressed down, at the moment, the pressure rod 1101 descends and drives the pressure plate 1102 and the sealing ring 1105 to be separated from the gas inlet 10, sample gas enters the shell 3 through the gas inlet 10, the first corrugated sleeve 1104 is loosened, and the pressure plate 1102 and the sealing ring 1105 are reset under the action of the stretching spring 1103, so that gas leakage is prevented; repeatedly pressing the second bellows 1201, the sample gas in the housing 3 starts to flow and achieve uniform mixing; the sample gas can be extracted by pulling the pull rod 6 through the piston 5 and the extraction cylinder 1, and after the extraction is completed, the extraction cylinder 1 is taken down and the gas is discharged through the discharge pipe 2 for detection.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An analysis sampling device, includes extraction section of thick bamboo (1), the bottom one side of extraction section of thick bamboo (1) is provided with discharge pipe (2), its characterized in that:

a shell (3) is arranged below the extraction cylinder (1), the extraction cylinder (1) is communicated with the shell (3) through a connecting ring (4), a piston (5) is arranged inside the extraction cylinder (1), a pull rod (6) is vertically arranged at the top end of the piston (5), a pull plate (7) is arranged at the top end of the pull rod (6), and an anti-reversing assembly (8) is arranged at the bottom end of the extraction cylinder (1);

the air inlet device is characterized in that a sealing plate (9) is arranged at the bottom end of the shell (3), an air inlet hole (10) is formed in the middle of the sealing plate (9), a sealing assembly (11) matched with the air inlet hole (10) is arranged in the middle of the shell (3) in a penetrating mode, and a gas mixing assembly (12) and a vacuum pump (13) are respectively arranged on one side of the top end of the shell (3).

2. The analysis sampling device of claim 1, wherein: the bottom of the extraction cylinder (1) is provided with external threads, and the inner side of the connecting ring (4) is provided with internal threads meshed with the bottom of the extraction cylinder (1).

3. The analysis sampling device of claim 2, wherein: the top of casing (3) just is located offer first through-hole (14) under extraction section of thick bamboo (1), the inside of first through-hole (14) is provided with filter screen (15).

4. The analytical sampling device of claim 3, wherein: the anti-reverse component (8) comprises a sealing plug (801) and a baffle ring (802) which are fixedly connected with the inner side of the bottom of the extraction barrel (1), an inverted conical hole is formed in the middle of the sealing plug (801), a sealing ball (803) is abutted to the top end of the sealing plug (801), and a first compression spring (804) is connected between the sealing ball (803) and the baffle ring (802).

5. The analysis sampling device of claim 4, wherein: the sealing assembly (11) comprises a pressing rod (1101) vertically penetrating through the middle of the shell (3), a pressing plate (1102) is connected to the bottom end of the pressing rod (1101), an extension spring (1103) is connected between the top end of the pressing plate (1102) and the inner top end of the shell (3), and a first corrugated sleeve (1104) in sealing connection with the shell (3) is sleeved on the top end of the pressing rod (1101).

6. The analysis sampling device of claim 5, wherein: the section of the air inlet hole (10) is of a step-shaped structure, and a sealing ring (1105) abutted against the air inlet hole (10) is inlaid at the top end of the pressing plate (1102).

7. The analysis sampling device of claim 6, wherein: the gas mixing assembly (12) comprises a second corrugated sleeve (1201) which is in sealing connection with the shell (3), a second through hole (1202) is formed in the top end of the shell (3) and right below the second corrugated sleeve (1201), and a second compression spring (1203) is arranged between the top end in the second corrugated sleeve (1201) and the top end of the shell (3).