CN211784559U

CN211784559U - Novel multi-functional quantitative sampling needle

Info

Publication number: CN211784559U
Application number: CN202020429731.9U
Authority: CN
Inventors: 申香枝; 于清江
Original assignee: Henan Foundation Egg Biotechnology Co ltd
Current assignee: Henan Foundation Egg Biotechnology Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-10-27
Anticipated expiration: 2030-03-30

Abstract

The utility model discloses a novel multifunctional quantitative sampling needle, which comprises a sampling needle main body, a tube body, a push-pull plate and a quantifying device, wherein the sampling needle main body consists of a needle point, a needle tube and a connector, the tube body is sleeved at the upper end of the connector, a baffle is fixedly connected to the top end of the tube body, a piston is arranged in the tube body, scale marks are arranged on the side wall of the tube body, and the quantifying device is arranged on two sides of the tube body; the push-pull plate is arranged above the baffle, a push-pull rod is fixedly connected to the center of the bottom end face of the push-pull plate, and the bottom end of the push-pull rod penetrates through the baffle and is fixedly connected with the piston; the quantifying device comprises a first shell, a pressing rod, a second shell, a latch, a supporting plate and a spring. This novel multi-functional ration sampling needle, rational in infrastructure has the sampling of being convenient for, washs convenient, the accurate characteristics of ration, has improved this sampling needle's practicality, is worth promoting.

Description

Novel multi-functional quantitative sampling needle

Technical Field

The utility model belongs to the technical field of the sampling equipment, concretely relates to novel multi-functional quantitative sampling needle.

Background

In the prior art, when a component analysis instrument (such as a biochemical analysis instrument, a blood analysis instrument, a urine analysis instrument, and a component analysis instrument commonly used in the chemical and petroleum industry) is in a test operation, the first step of the operation is to collect a sample liquid, and a sampling needle is needed to complete the collection of a sample.

At present, the existing sampling needle has the problems of inaccurate sampling quantity positioning and inconvenient installation and cleaning, so that further improvement is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel multi-functional ration sampling needle to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a novel multifunctional quantitative sampling needle comprises a sampling needle main body, a tube body, a push-pull plate and a quantifying device, wherein the sampling needle main body consists of a needle point, a needle tube and a connector, the tube body is sleeved at the upper end of the connector, a baffle is fixedly connected to the top end of the tube body, a piston is arranged in the tube body movably, scale marks are arranged on the side wall of the tube body, and the quantifying device is arranged on two sides of the tube body;

the push-pull plate is arranged above the baffle, a push-pull rod is fixedly connected to the center of the bottom end face of the push-pull plate, and the bottom end of the push-pull rod penetrates through the baffle and is fixedly connected with the piston;

the quantifying device comprises a first shell, a pressing rod, a second shell, clamping teeth, a supporting plate and springs, wherein the first shell is fixed on the side wall of the pipe body, the second shell is arranged in the first shell and is attached to one side close to the pipe body, the supporting plate is arranged on one side far away from the pipe body in the second shell, the supporting plate and the pipe body are kept parallel, the springs are provided with two groups, two ends of the two groups of springs are respectively welded with the supporting plate and the inner wall of the second shell, the center of the supporting plate far away from one end face of the pipe body is fixedly connected with the pressing rod, the pressing rod is arranged perpendicular to the supporting plate, the front end of the pressing rod penetrates through the first shell and is arranged on the outer side of the first shell, the clamping teeth are also arranged on two sides of the pressing rod, the clamping teeth are also arranged perpendicular to the supporting plate and are fixedly connected to one end face of the supporting plate far away from the pipe body, and the front ends of the clamping teeth are abutted, and a rack matched with the clamping teeth is arranged on the inner wall of the first shell.

Preferably, the two sides of the second housing are fixedly connected with connecting rods, the front ends of the connecting rods penetrate through the side wall of the first housing and are fixedly connected with the moving block, and the moving block abuts against the outer side wall of the first housing.

Preferably, a positioning ring is fixedly connected between the two groups of moving blocks on the same plane at two sides of the pipe body.

Preferably, two sides of the bottom end face of the push-pull plate are fixedly connected with limiting rods, the bottom ends of the limiting rods sequentially penetrate through the baffle, the first shell and the second shell and are arranged inside the first shell, and the bottom ends of the limiting rods are fixedly connected with limiting blocks.

Preferably, round holes matched with the limiting rods for use are formed in the upper end face and the lower end face of the second shell.

Preferably, vertical grooves are formed in the two sides of the first shell and the front end face of the first shell, and the vertical grooves are parallel to the pipe body.

Preferably, a sliding seat is arranged on the outer wall of one side, close to the pipe body, of the second shell, and a sliding groove matched with the sliding seat is arranged on the inner wall of one side, close to the pipe body, of the first shell.

Preferably, the maximum air volume of the tube body is smaller than the maximum sampling volume of the sampling needle main body.

The utility model discloses a technological effect and advantage: this novel multi-functional ration sampling needle installs the body in through the sampling needle main part, and under the cooperation of push-and-pull board, push-and-pull rod, baffle and piston, plays the sampling of being convenient for and washs convenient effect, through proportioning device's setting, plays the effect that makes this sampling needle ration accurate. This novel multi-functional ration sampling needle, rational in infrastructure has the sampling of being convenient for, washs convenient, the accurate characteristics of ration, has improved this sampling needle's practicality, is worth promoting.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a cross-sectional view of a first housing of the present invention;

fig. 4 is a cross-sectional view of the second housing of the present invention.

In the figure: the sampling probe comprises a sampling probe main body 1, a tube body 2, a baffle plate 3, a push-pull plate 4, scale marks 5, a push-pull rod 6, a limiting rod 7, a first shell 8, a moving block 9, a vertical groove 10, a positioning ring 11, a connector 12, a rack 13, a pressing rod 14, a limiting block 15, a piston 16, a second shell 17, a latch 18, a connecting rod 19, a sliding seat 20, a round hole 21, a support plate 22 and a spring 23.

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.

The utility model provides a novel multifunctional quantitative sampling needle as shown in figures 1-4, which comprises a sampling needle main body 1, a tube body 2, a push-pull plate 4 and a quantifying device, wherein the sampling needle main body 1 consists of a needle point, a needle tube and a connector 12, the tube body 2 is sleeved at the upper end of the connector 12, a baffle 3 is fixedly connected to the top end of the tube body 2, a piston 16 is arranged in the tube body 2, scale marks 5 are arranged on the side wall of the tube body 2, and the quantifying device is arranged on two sides of the tube body 2;

the push-pull plate 4 is arranged above the baffle 3, a push-pull rod 6 is fixedly connected to the center of the bottom end face of the push-pull plate 4, and the bottom end of the push-pull rod 6 penetrates through the baffle 3 and is fixedly connected with a piston 16;

the quantifying device comprises a first shell 8, a pressing rod 14, a second shell 17, clamping teeth 18, a supporting plate 22 and springs 23, wherein the first shell 8 is fixed on the side wall of the tube body 2, the second shell 17 is arranged inside the first shell 8 and is attached to one side close to the tube body 2, the supporting plate 22 is arranged on one side far away from the tube body 2 inside the second shell 17, the supporting plate 22 is parallel to the tube body 2, the springs 23 are provided with two groups, two ends of the two groups of springs 23 are respectively welded with the supporting plate 22 and the inner wall of the second shell 17, the pressing rod 14 is fixedly connected to the center of one end face, far away from the tube body 2, of the supporting plate 22, the pressing rod 14 is perpendicular to the supporting plate 22, the front end of the pressing rod 14 penetrates through the first shell 8 and is arranged on the outer side of the first shell 8, the clamping teeth 18 are further arranged on two sides of the pressing rod 14, the clamping teeth 18 are also perpendicular to the supporting plate 22 and are fixedly connected to one end face, far away from the tube body 2, the front end of the latch 18 abuts against the inner wall of the first housing 8, and the inner wall of the first housing 8 is provided with a rack 13 matched with the latch 18.

Specifically, two sides of the second housing 17 are fixedly connected with a connecting rod 19, a front end of the connecting rod 19 penetrates through a side wall of the first housing 8 to be fixedly connected with the moving block 9, and the moving block 9 is attached to an outer side wall of the first housing 8.

Specifically, a positioning ring 11 is fixedly connected between two sets of the moving blocks 9 on the same plane at two sides of the pipe body 2.

Specifically, two sides of the bottom end face of the push-pull plate 4 are fixedly connected with limiting rods 7, the bottom ends of the limiting rods 7 sequentially penetrate through the baffle 3, the first shell 8 and the second shell 17 and are arranged inside the first shell 8, and the bottom ends of the limiting rods 7 are fixedly connected with limiting blocks 15.

Specifically, round holes 21 matched with the limiting rod 7 are formed in the upper end face and the lower end face of the second shell 17.

Specifically, vertical grooves 10 are formed in the two sides and the front end face of the first shell 8, and the vertical grooves 10 are parallel to the tube body 2, so that the connecting rod 19 and the pressing rod 14 can slide up and down conveniently.

Specifically, be provided with slide 20 on the second casing 17 is close to one side outer wall of body 2, first casing 8 is close to and is provided with the spout that uses with slide 20 cooperation on the body 2 one side inner wall, plays the second casing 17 of being convenient for gliding effect from top to bottom in first casing 8.

Specifically, the maximum air volume of the tube body 2 is smaller than the maximum sampling volume of the sampling needle main body 1, so as to prevent the sample from being sucked into the tube body 2 to cause sample cross contamination.

The working principle is as follows: during sampling, firstly, a sampling needle body 1 is sleeved at the bottom end of a tube body 2 through a connector 12, then a pressing rod 14 on two sides of a first shell 8 is pressed, a clamping tooth 18 is separated from a rack 13 under the matching of a resisting plate 22 and a spring 23, so that a second shell 17 can slide up and down in the first shell 8 under the matching of a sliding seat 20, the up-and-down sliding of the second shell 17 drives a moving block 9 and a positioning ring 11 to move up and down, secondly, the sampling amount is calibrated under the matching of a scale mark 5 and the positioning ring 11, the pressing rod 14 is loosened, the clamping tooth 18 is meshed with the rack 13 under the matching of the resisting plate 22 and the spring 23, so that the second shell 17 and the positioning ring 11 are fixed, further, the tube body 2 is tightly held, the sampling needle body 1 is vertically downward, then a push-pull plate 4 is pulled backwards, and under the matching of a push-pull rod 6 and a piston 16, the sampling needle main part 1 samples, when the sampling amount calibrated in advance is reached, the push-pull plate 4 does not move backwards through the matching of the limiting rod 7 and the limiting block 15, so that the purpose of accurate quantitative sampling is achieved, when the sampling needle main part 1 is cleaned, the sampling needle main part 1 repeatedly sucks cleaning liquid under the matching of the pipe body 2, the push-pull plate 4, the push-pull rod 6 and the piston 16, so that the cleaning purpose is achieved, and attention needs to be paid to the fact that the maximum air volume of the pipe body 2 is set to be not larger than the maximum sampling amount of the sampling needle main part 1, so that the sample is prevented from being sucked into the pipe body 2 to cause sample cross contamination. This novel multi-functional ration sampling needle, rational in infrastructure has the sampling of being convenient for, washs convenient, the accurate characteristics of ration, has improved this sampling needle's practicality, is worth promoting.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a novel multi-functional ration sampling needle, includes sampling needle main part (1), body (2), push-and-pull board (4), proportioning device, its characterized in that: the sampling needle comprises a sampling needle body (1), a needle tube and a connector (12), wherein the upper end of the connector (12) is sleeved with a tube body (2), the top end of the tube body (2) is fixedly connected with a baffle (3), a piston (16) is arranged in the tube body (2) in a movable mode, scale marks (5) are arranged on the side wall of the tube body (2), and quantifying devices are arranged on two sides of the tube body (2);

the push-pull plate (4) is arranged above the baffle (3), a push-pull rod (6) is fixedly connected to the center of the bottom end face of the push-pull plate (4), and the bottom end of the push-pull rod (6) penetrates through the baffle (3) and is fixedly connected with the piston (16);

the quantifying device comprises a first shell (8), a pressing rod (14), a second shell (17), a latch (18), a supporting plate (22) and springs (23), wherein the first shell (8) is fixed on the side wall of the tube body (2), the second shell (17) is arranged inside the first shell (8) and is attached to one side close to the tube body (2), the supporting plate (22) is arranged on one side, far away from the tube body (2), inside the second shell (17), of the supporting plate (22), the supporting plate (22) is parallel to the tube body (2), the springs (23) are provided with two groups, two ends of the two groups of springs (23) are respectively welded with the supporting plate (22) and the inner wall of the second shell (17), the center, far away from one end face of the tube body (2), of the pressing rod (14) is fixedly connected with the pressing rod (14), the pressing rod (14) is perpendicular to the supporting plate (22), and the front end of the pressing rod (14) penetrates through the first shell (8) and is arranged outside the first shell (8), the two sides of the pressing rod (14) are further provided with clamping teeth (18), the clamping teeth (18) are perpendicular to the supporting plate (22) and fixedly connected to one end face, away from the pipe body (2), of the supporting plate (22), the front ends of the clamping teeth (18) abut against the inner wall of the first shell (8), and racks (13) matched with the clamping teeth (18) are arranged on the inner wall of the first shell (8).

2. The novel multifunctional quantitative sampling needle as claimed in claim 1, characterized in that: the two sides of the second shell (17) are fixedly connected with connecting rods (19), the front ends of the connecting rods (19) penetrate through the side wall of the first shell (8) and are fixedly connected with a moving block (9), and the moving block (9) is attached to the outer side wall of the first shell (8).

3. The novel multifunctional quantitative sampling needle as claimed in claim 2, characterized in that: and a positioning ring (11) is fixedly connected between the two groups of moving blocks (9) which are positioned on the same plane at the two sides of the pipe body (2).

4. The novel multifunctional quantitative sampling needle as claimed in claim 1, characterized in that: the limiting rod (7) is fixedly connected to two sides of the bottom end face of the push-pull plate (4), the bottom end of the limiting rod (7) penetrates through the baffle (3), the first shell (8) and the second shell (17) in sequence and is arranged inside the first shell (8), and the limiting block (15) is fixedly connected to the bottom end of the limiting rod (7).

5. The novel multifunctional quantitative sampling needle as claimed in claim 1, characterized in that: round holes (21) matched with the limiting rods (7) are formed in the upper end face and the lower end face of the second shell (17).

6. The novel multifunctional quantitative sampling needle as claimed in claim 1, characterized in that: vertical grooves (10) are formed in the two sides of the first shell (8) and the front end face of the first shell, and the vertical grooves (10) are parallel to the pipe body (2).

7. The novel multifunctional quantitative sampling needle as claimed in claim 1, characterized in that: a sliding seat (20) is arranged on the outer wall of one side, close to the pipe body (2), of the second shell (17), and a sliding groove matched with the sliding seat (20) is formed in the inner wall of one side, close to the pipe body (2), of the first shell (8).

8. The novel multifunctional quantitative sampling needle as claimed in claim 1, characterized in that: the maximum air capacity of the tube body (2) is smaller than the maximum sampling amount of the sampling needle main body (1).