CN209906788U

CN209906788U - Planktonic bacteria sampler

Info

Publication number: CN209906788U
Application number: CN201920638453.5U
Authority: CN
Inventors: 俞海晶; 刘荣盛
Original assignee: Zhejiang Guxin Testing Technology Co Ltd
Current assignee: Zhejiang Guxin Testing Technology Co Ltd
Priority date: 2019-05-07
Filing date: 2019-05-07
Publication date: 2020-01-07
Anticipated expiration: 2029-05-07

Abstract

The utility model discloses a planktonic bacteria sample thief belongs to planktonic bacteria sampling test equipment field, and when having solved the collection pipeline air among the prior art, the problem of sampling quality can be influenced to the outside air. The sampling device comprises a machine body and a sampling head, wherein the sampling head is provided with a through hole communicated with the machine body, and also comprises a connecting part connected to the sampling head and used for being connected with a pipeline, one side of the sampling head, which is far away from the machine body, is sunken towards one side, which is close to the machine body, to form a sunken part, and the through hole is arranged in the sunken part; connecting portion include the linkage segment that cavity and both ends link up, and linkage segment one end is pegged graft in the depressed part and with interior concave part side wall face butt, and the other end extends to the one side of keeping away from the organism, and the linkage segment is by the one end to the other end of being connected with the depressed part, and cross sectional area reduces gradually. The utility model discloses a connecting portion will be isolated except that the air of pipeline, realize reducing the outside air and to the influence of pipeline air sampling, improve the effect of sampling quality.

Description

Planktonic bacteria sampler

Technical Field

The utility model relates to a planktonic bacteria sampling check out test set field, in particular to planktonic bacteria sample thief.

Background

The air planktonic bacteria sampler is a high-efficiency porous suction type sampler, is based on the Anderson impact principle, has the impact speed of 10.8m/s, is equivalent to the fifth level of the Anderson impact grade, and mainly aims at airflow in the horizontal direction and the vertical direction during sampling.

As shown in fig. 1, the planktonic bacteria sampler comprises a body 1 and a sampling head 2 sleeved on the upper end of the body 1, wherein the body 1 is provided with a through hole 11 communicating the inside and the outside of the body 1, the upper surface of the body 1 is fixed with a placing table 12 for inserting the sampling head 2 and placing a culture dish, and the placing table 12 is provided with an air hole 13 communicating the inside and the outside of the body 1. When in use, the sampling head 2 is opened, the culture dish is placed on the placing table 12, and then the sampling head 2 is connected to the placing table 12 again; the machine body 1 is provided with a power switch, a setting key, a mode key and a display screen. When the power supply is connected and the power switch is turned on to start the sampler, the air is sucked by the air suction device of the instrument through the porous sampling head 2 and is impacted on a culture dish with the diameter of 90mm, and microorganisms in the air are captured on the agar culture medium.

The prior art is suitable for sampling in an exposed environment, if air in a dense space needs to be collected, for example, air conveyed out of a pipeline, the outer diameter of the pipeline is much smaller than that of a sampling head, and the external air also enters the sampling head at the position of the sampling head of a direct channel, so that the sampling quality is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming among the prior art when gathering the pipeline air, the external air can influence the not enough of sampling quality, and provides a planktonic fungus sample thief, has reached and has reduced the external air and has influenced pipeline air sampling, improves the effect of sampling quality.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a planktonic bacteria sampler comprises a machine body and a sampling head, wherein the sampling head is provided with a through hole communicated with the machine body, and also comprises a connecting part connected to the sampling head and used for being connected with a pipeline, one side of the sampling head, which is far away from the machine body, is sunken towards one side, which is close to the machine body, to form a sunken part, and the through hole is formed in the sunken part; connecting portion include the linkage segment that cavity and both ends link up, and linkage segment one end is pegged graft in the depressed part and with interior concave part side wall face butt, and the other end extends to the one side of keeping away from the organism, and the linkage segment is by the one end to the other end of being connected with the depressed part, and cross sectional area reduces gradually.

Adopt above-mentioned technical scheme, when needing the air in the collection pipeline, peg graft the linkage segment in the indent, peg graft the pipeline in the other end of takeover again, the linkage segment is isolated with the air outside the pipeline, and the butt is avoided with the indent side to the outer wall of linkage segment, can avoid outside air's influence by to a great extent, improves sampling quality. On the other hand, in the actual use condition, the cross section of the pipeline is much smaller than that of the sampling head, so that the cross section of the connecting section has the trend of gradually reducing, one end of the connecting section can be precisely spliced with the pipeline, and the entering of outside air is reduced.

After the concave part is arranged, the connecting section can be inserted into the concave part, and compared with the position directly above the horizontal sampling head, the connecting section is not easy to slide on the sampling head, and the installation stability of the connecting section can be improved. The reason why the convex structure is not arranged is that: the position of the sampling head with the through hole can not be touched by hands, the sampling result can be influenced, the area where the convex result through hole is arranged is easily touched, and therefore the concave result is better.

More preferably: one end of the connecting section, which is close to the machine body, extends outwards to form an inserting section, the inserting section is inserted into the concave part, and the outer wall surface of the inserting section is abutted to the side wall surface of the concave part.

By adopting the technical scheme, when the inserting section is inserted into the inner concave part, the outer wall surface of the inserting section is abutted with the side wall surface of the inner concave part, so that the sealing property of connection between the connecting section and the sampling head can be improved, the possibility of external air entering is further reduced, and the sampling quality is improved.

More preferably: and the plug-in section is provided with sealing rubber which is abutted against the side wall surface of the concave part.

By adopting the technical scheme, the sealing performance between the connecting section and the inner concave part is further improved, the possibility of entering of outside air is further reduced, and the sampling quality is improved.

More preferably: the connecting section is conical.

By adopting the technical scheme, the culture dish is generally placed at the central position of the machine body, the central position is also the central position of the sampling head, air in the pipeline enters from the central position of the inner concave part, the possibility that the air is fully contacted with the culture dish is improved, and the sampling quality is improved.

More preferably: the one end that the organism was kept away from to the linkage segment extends outward and is provided with the installation section that cross section department equals, connecting portion still include with installation section threaded connection be used for the body to say the takeover.

By adopting the technical scheme, the mounting section is used for being connected with the connecting pipe, the threaded connection improves the connection stability while ensuring the connection, and meanwhile, the sealing performance is achieved to a certain degree.

More preferably: the connecting pipe comprises a pipe body and a abutting plate arranged on the inner wall surface of the pipe body, one end of the pipe body is inserted outside the installation section, and the abutting plate is arranged at one end, far away from the installation section, of the pipe body.

By adopting the technical scheme, the pipeline is generally a soft transparent PP pipe, after the pipeline is inserted into the pipe body, the pipeline can be extruded due to the fact that the inner diameter of the pipe body is reduced by the abutting plate, the pipeline has certain elasticity and can abut against the abutting plate, and therefore the pipe body is abutted against the pipe body by the abutting plate, and stability of the pipeline after being spliced is improved.

More preferably: elastic rubber is connected between the abutting plate and the pipe body, and one end of the abutting plate extends out of the pipe body towards one side far away from the connecting pipe.

By adopting the technical scheme, the elastic rubber has certain hypotenuse capability and elasticity, and the inner diameter of the pipe body can be further reduced, so that the pipeline is further tightly propped in the pipe body. After one end of the abutting plate extends out of the pipe body, an operator can observe the position relation between the pipeline and the abutting plate conveniently, and therefore the pipeline can be inserted into the pipe body conveniently.

More preferably: the elastic rubber is connected with the end part of the abutting plate in the pipe body.

By adopting the technical scheme, on one hand, an indication function can be realized, when the pipe body is obviously difficult to push in, the pipe body reaches the elastic rubber, and the overlapping length of the pipe body and the pipeline is ensured; on the other hand, the pipeline can be tightly propped in the extending length direction of the propping plate.

More preferably: the abutting plate is obliquely arranged towards one side close to the outer wall surface of the pipe body from one end connected with the elastic rubber to one end positioned outside the pipe body.

By adopting the technical scheme, the pipeline can be conveniently plugged, and the pipeline can be gradually propped tightly when the pipeline is plugged.

More preferably: one end of the abutting plate extending out of the pipe body is connected with an extending piece, and the extending piece extends out of the pipe body and is abutted to the outer wall surface of the pipe body.

Adopt above-mentioned technical scheme, reduce to support the influence of tight board to workman's operation, and the outer wall clamp of body is located the extension piece and is supported between the tight board, improves to support the stability of tight board.

To sum up, the utility model discloses following beneficial effect has:

1. by arranging the concave part and the connecting section, air outside the pipeline is isolated, so that the influence of outside air is avoided to a great extent, and the sampling quality is improved;

2. by arranging the sealing rubber, the sealing property between the connecting section and the concave part is further improved, the possibility of external air entering is further reduced, and the sampling quality is improved;

3. the quick connection of the pipeline and the stability of the inserted pipeline are realized by arranging the connecting pipe;

4. through setting up elastic rubber, further reduce body internal diameter to further support the pipeline tightly in the body.

Drawings

FIG. 1 is an exploded schematic view of the prior art;

fig. 2 is a schematic structural diagram of the present invention;

FIG. 3 is an exploded schematic view of FIG. 2;

FIG. 4 is a top view of the nozzle;

fig. 5 is a partial cross-sectional view of section a-a in fig. 4.

Reference numerals: 1. a body; 11. perforating; 12. a placing table; 13. air holes; 2. a sampling head; 21. a through hole; 22. an inner concave portion; 3. a connecting portion; 4. a connecting section; 41. a plug section; 42. sealing rubber; 43. an installation section; 5. taking over a pipe; 51. a pipe body; 52. a propping plate; 53. an extension piece; 6. an elastic rubber.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A planktonic bacteria sampler, as shown in fig. 2, comprises a vertically placed machine body 1, a sampling head 2 placed above the machine body 1, and a connecting part 3 arranged on the sampling head 2 and used for connecting a pipe 5.

As shown in fig. 1, a through hole 11 communicating the inside and outside of the machine body 1 is formed in the machine body 1, a placing table 12 for inserting the sampling head 2 and placing a culture dish is fixed on the upper surface of the machine body 1, and an air hole 13 communicating the inside and outside of the machine body 1 is formed in the placing table 12. During the use, place the culture dish on placing platform 12, again with sampling head 2 install on placing platform 12 can.

As shown in fig. 3, the cross section of the sampling head 2 is circular, the center of the sampling head 2 is recessed downwards to form an inner concave portion 22, a plurality of through holes 21 are vertically formed in the inner concave portion 22, and the through holes 21 are uniformly distributed on the bottom surface of the inner concave portion 22; the cross-section of the inner recess 22 is circular.

The connecting part 3 comprises a connecting section 4 and a connecting pipe 5 which are sequentially connected to the concave part 22, the pipeline is connected to one end of the connecting pipe 5 far away from the connecting section 4, the connecting section 4 is hollow, two ends of the connecting section 4 are communicated, and the connecting section 4 is vertically arranged and is conical; the lower end of the connecting section 4 is integrally formed with an inserting section 41 with a circular ring-shaped cross section, the upper end of the connecting section 4 is integrally formed with an installing section 43 with a circular ring-shaped cross section, the inserting section 41 extends downwards along the vertical direction, and the installing section 43 extends upwards along the vertical direction.

The outer wall surface of the mounting section 43 is glued and adhered with sealing rubber 42 with a circular cross section, and the sealing rubber 42 is abutted against the vertical side wall surface of the inner concave part 22 to realize the sealing between the connecting section 4 and the sampling head 2; the adapter tube 5 is plugged out of the mounting section 43.

As shown in fig. 4 and 5, the adapter 5 includes a tubular body 51 with a circular cross section, and a fastening plate 52 disposed at an end of the tubular body 51 far from the mounting section 43. The pipe body 51 extends upwards along the vertical direction and then bends to horizontally react and extend, and the vertical section of the pipe body 51 is in threaded connection with the mounting section 43. The two abutting plates 52 are respectively positioned at the highest level and the lowest level of the pipe body 51 and are arranged in the pipe body 51; the abutting plate 52 is a circular arc plate, and the bending degree of the abutting plate is the same as that of the circular cross section of the pipe body 51.

One end of the abutting plate 52 is positioned in the tube body 51, and the other end extends out of the tank body; the elastic rubber 6 is fixed between the end of the abutting plate 52 located inside the tube 51 and the inner wall of the tube 51 by gluing, and the abutting plate is inclined toward the side close to the inner wall of the tube 51 from the end where the elastic rubber 6 is fixed to the end outside the tube 51. The obliquely arranged abutting plate 52 can facilitate the insertion of the pipeline, and when the pipeline 5 is inserted, the pipeline can be gradually abutted, and when the pipeline reaches the elastic rubber 6, the abutting force reaches the maximum.

The abutting plate 52 is integrally formed with an extending piece 53 at an end outside the tube 51, the extending piece 53 extends to the outside of the outer wall surface of the tube 51 along the thickness direction of the tube 51, and then horizontally extends along the outer wall surface of the tube 51 to a side close to the connecting section 4, so that the wall thickness of the tube 51 is clamped between the extending piece 53 and the abutting plate 52. The extension piece 53 is a circular arc plate, and the degree of curvature thereof is the same as the degree of curvature of the circular cross section of the pipe body 51.

In this embodiment, the sampling head 2 and the connection portion 3 are made of stainless steel.

The implementation principle of the embodiment is as follows: the petri dish is placed on the placing table 12, and the sampling head 2 is then mounted on the placing table 12. Then the connecting section 4 is arranged in the concave part of the inner sampling head 2, and the connecting pipe 5 is inserted outside the mounting section 43; the pipeline of the gas to be measured is inserted into the connecting pipe 5, and the abutting plate 52 abuts against the pipeline.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A planktonic bacteria sampler comprises a machine body (1) and a sampling head (2), wherein a through hole (21) communicated with the machine body (1) is formed in the sampling head (2), the planktonic bacteria sampler is characterized by further comprising a connecting part (3) connected to the sampling head (2) and used for being connected with a pipeline, one side, far away from the machine body (1), of the sampling head (2 is sunken towards one side, close to the machine body (1) to form a sunken part, and the through hole (21) is formed in the sunken part; connecting portion (3) are including cavity and both ends linkage segment (4) that link up, and linkage segment (4) one end is pegged graft in the depressed part and with interior concave part (22) side wall face butt, and the other end extends to the one side of keeping away from organism (1), and linkage segment (4) are by the one end of being connected with the depressed part to the other end, and cross sectional area reduces gradually.

2. The planktonic bacteria sampler according to claim 1, wherein an insertion section (41) extends outwards from one end of the connection section (4) close to the machine body (1), the insertion section (41) is inserted into the concave portion (22), and the outer wall surface of the insertion section (41) abuts against the side wall surface of the concave portion (22).

3. The planktonic bacteria sampler according to claim 2, wherein the plug section (41) is provided with a sealing rubber (42) abutting against a side wall surface of the concave portion (22).

4. A sampler for planktonic bacteria according to any one of claims 1 to 3 wherein said connecting section (4) is tapered.

5. The planktonic bacteria sampler according to claim 1, wherein the connecting section (4) extends outwards from the end of the machine body (1) to form a mounting section (43) with the same cross section, and the connecting section (3) further comprises a connecting pipe (5) which is in threaded connection with the mounting section (43) and is used for connecting the pipe body (51).

6. The planktonic bacteria sampler according to claim 5, wherein the connection tube (5) comprises a tube body (51) and a pressing plate (52) arranged on the inner wall surface of the tube body (51), one end of the tube body (51) is inserted outside the installation section (43), and the pressing plate (52) is arranged at one end of the tube body (51) far away from the installation section (43).

7. The planktonic bacteria sampler according to claim 6, wherein an elastic rubber (6) is connected between the abutting plate (52) and the tube body (51), and one end of the abutting plate (52) extends out of the tube body (51) to a side away from the adapter tube (5).

8. A sampler as claimed in claim 7, characterised in that the resilient rubber (6) is attached to the end of the abutment plate (52) within the tube (51).

9. The planktonic bacteria sampler according to claim 8, wherein the abutting plate (52) is inclined from the end connected with the elastic rubber (6) to the end located outside the tube (51) to the side close to the outer wall surface of the tube (51).

10. The planktonic bacteria sampler of claim 7, wherein the end of the abutting plate (52) extending to the outside of the tube (51) is connected with an extending piece (53), and the extending piece (53) extends to the outside of the tube (51) and is abutted against the outer wall surface of the tube (51).