Sample collection device

Abstract

The utility model relates to the technical field of sample collection, in particular to a sample collection device which comprises a collection tube, a sliding rod is slidably connected in the collection tube, one end of the sliding rod is fixedly connected with a guide plate, the other end of the guide plate is fixedly connected with a connecting rod, and the other end of the connecting rod is in threaded connection with a probe rod arrow. The probe rod arrowhead abuts against the end portion of the collecting pipe, the connecting rod is sleeved with a sampling rod, one end of the sampling rod is fixedly connected with a connecting plate, the other end of the connecting plate is fixedly connected with a piston, and the piston is slidably connected to the inner wall of the collecting pipe in a damping mode. According to the utility model, through the displacement of the probe rod arrow, when the piston in the collection tube is drawn, quantitative extraction and collection of a powder sample can be realized through negative pressure suction, and finally, the probe rod arrow is pulled back to realize plugging of the collection tube, so that the collection of the sample can be realized, and the accurate collection of the collection depth can be realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to sample collection technical field, concretely is a sample collection device. BACKGROUND

[0002] Biopharmaceutical refers to the research results of microbiology, biology, medicine, biochemistry etc., from organism, biological tissue, cell, organ, body fluid etc., comprehensive utilization microbiology, chemistry, scientific principle and method of manufacture for preventing, treating and diagnosing a kind of product, and biological pharmaceutical raw material is mainly natural biological material.

[0003] Part of biological raw materials can present powder after processing, when it carries out pharmaceutical processing, needs to use stainless steel powder sampler, realizes the sampling of powder raw material, facilitates data detection and other experimental operations, but the traditional stainless steel powder sampler cannot accurately control the collection depth when collecting powder sample, and cannot flexibly control the collection amount, thereby reducing the convenience and adaptability of sampling. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a sample collection device to solve the problem of the above background that the collection depth cannot be accurately controlled when collecting powder sample, and the collection amount cannot be flexibly controlled, thereby reducing the convenience and adaptability of sampling.

[0005] To achieve the above object, the utility model provides the following technical scheme: a sample collection device, comprising:

[0006] The collection pipe is internally connected with a sliding rod in sliding mode, one end of the sliding rod is fixedly connected with a guide plate, the other end of the guide plate is fixedly connected with a connecting rod, and the other end of the connecting rod is threadedly connected with a probe arrow, the probe arrow abuts against the end of the collection pipe, the outer part of the connecting rod is provided with a sampling rod, one end of the sampling rod is fixedly connected with a connecting plate, the other end of the connecting plate is fixedly connected with a piston, and the piston is connected with the inner wall of the collection pipe in damping sliding mode.

[0007] Preferably, the outer wall of the collection pipe is provided with a scale line, both ends of the probe arrow are conical structure, and the end close to the probe arrow of the piston is provided with a groove matched with the conical structure of the probe arrow.

[0008] Preferably, one end of the sliding rod away from the guide plate is fixedly connected with a first control plate, and the guide plate and the first control plate are both provided with a through hole matched with the sampling rod.

[0009] Preferably, the sampling rod penetrates to the outside of the first control plate, and four sampling rods are arranged circumferentially, and the outer wall of each sampling rod is provided with a scale line.

[0010] Preferably, the sampling rod is provided with an external thread section at the end away from the connecting plate, and the sampling rod external thread section is externally threadedly connected with a second control plate, and the second control plate is provided with a threaded cylinder corresponding to the sampling rod threaded section.

[0011] Preferably, the center of the piston is provided with a threaded hole matched with the connecting rod, the connecting plate is provided with a positioning hole, and the piston is provided with a threaded hole corresponding to the connecting plate positioning hole.

[0012] Preferably, the inner diameter of the sampling rod is equal to the outer diameter of the connecting rod, and the outer diameter of the sampling rod is in a circular arc structure, and the outer diameter of the guide plate and the sliding rod is equal to the inner diameter of the collection tube.

[0013] Compared with the prior art, the utility model has the advantages that: through the setting of the connecting rod, the guide plate and the sliding rod, the displacement of the probe rod arrow can be driven, so that the powder sample can be extracted and collected through negative pressure suction while the piston in the collection tube is pulled, the probe rod arrow is pulled back to realize the plugging of the collection tube, the sample collection is realized, the accurate collection of the collection depth is realized, the sample mixing is avoided, the safety of the sample transfer and pouring after collection is ensured, the subsequent pouring is facilitated, the cone-shaped probe rod arrow is convenient to insert into the sample to take sample, and the overall use convenience of the device is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the collection tube axis section structure schematic view of the utility model;

[0015] Figure 2 It is the collection tube axis section structure schematic view of the utility model; Figure 1 It is the enlarged structure schematic view of A of the utility model;

[0016] Figure 3 It is the sampling rod explosion structure schematic view of the utility model;

[0017] Figure 4 It is the sliding rod connecting structure schematic view of the utility model;

[0018] Figure 5 It is the overall structure schematic view of the utility model.

[0019] In the drawing: 1, collection tube; 2, probe rod arrow; 3, connecting rod; 4, guide plate; 5, sliding rod; 6, first control plate; 7, sampling rod; 8, connecting plate; 9, piston; 10, second control plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0021] Please refer to Figures 1-5 The utility model provides an embodiment: a sample collection device, it includes

[0022] The collection pipe 1 is internally connected with the sliding rod 5, and the sliding rod 5 is fixedly connected with the guide plate 4 at one end, the other end of the guide plate 4 is fixedly connected with the connecting rod 3, and the other end of the connecting rod 3 is threadedly connected with the probe arrow 2, the probe arrow 2 is abutted at the end of the collection pipe 1, the outside of the connecting rod 3 is provided with the sampling rod 7, and the sampling rod 7 is fixedly connected with the connecting plate 8 at one end, the other end of the connecting plate 8 is fixedly connected with the piston 9, and the piston 9 is dampingly and slidably connected to the inner wall of the collection pipe 1, first, the collection pipe 1 is inserted into the sample to be collected by hand, the first control plate 6 is further pushed, the sliding rod 5, the guide plate 4 and the connecting rod 3 are connected, the displacement of the probe arrow 2 is realized, the piston 9 is displaced by the sampling rod 7 by pulling the second control plate 10, and the negative pressure extraction collection of the powder sample can be realized, finally, the first control plate 6 is pulled out, the probe arrow 2 is blocked to the end of the collection pipe 1, the sample collection is completed, the accuracy of sample collection is ensured, and the stability and convenience of subsequent sample transfer are improved.

[0023] Further, the outer wall of the collection pipe 1 is provided with a scale line, the insertion depth is controlled by the setting of the scale line, so that the sampling depth is accurately controlled, both ends of the probe arrow 2 are conical structures, the setting of the conical structures on both sides facilitates the sampling insertion of the device, avoids the accumulation on the probe arrow 2 during discharging, improves the completeness of discharging, and the end close to the probe arrow 2 of the piston 9 is provided with a groove matched with the conical structure of the probe arrow 2.

[0024] Further, the end of the sliding rod 5 away from the guide plate 4 is fixedly connected with the first control plate 6, and the guide plate 4 and the first control plate 6 are both provided with through holes matched with the sampling rod 7, the setting of the guide plate 4 and the first control plate 6 can improve the stability of the sampling rod 7 sliding, and the sampling rod 7 is well guided and limited.

[0025] Further, the sampling rod 7 penetrates to the outside of the first control plate 6, and four sampling rods 7 are circumferentially arranged, and the outer wall of each sampling rod 7 is provided with a scale line, and through the arrangement of the scale line, the pulling position of the piston 9 can be controlled, thereby realizing the accurate control of the sample collection amount.

[0026] Further, the outer thread segment is arranged at one end of the sampling rod 7 away from the connecting plate 8, and the second control plate 10 is threadedly connected outside the outer thread segment of the sampling rod 7, and the second control plate 10 is provided with a threaded barrel at the threaded segment corresponding to the sampling rod 7, and through the threaded connection of the sampling rod 7 and the second control plate 10, the overall disassembly and maintenance of the device are facilitated, and the sampling rod 7 is conveniently connected and pulled for control.

[0027] Further, a threaded hole adapted to the connecting rod 3 is formed in the center of the piston 9, a positioning hole is formed in the connecting plate 8, and a threaded hole is formed in the piston 9 corresponding to the positioning hole of the connecting plate 8, and the connecting plate 8 and the piston 9 are fastened and connected through a screw, thereby completing the stable connection of the piston 9, and then the position control of the piston 9 can be realized through the pulling of the sampling rod 7.

[0028] Further, the inner diameter of the sampling rod 7 is equal to the outer diameter of the connecting rod 3, and the outer diameter of the sampling rod 7 is in a circular arc structure, which further plays a guiding and limiting role on the sampling rod 7, ensuring the stability of the sliding thereof, and the outer diameter of the guide plate 4 and the sliding rod 5 is equal to the inner diameter of the collection tube 1, which is used for the sliding and guiding of the sliding rod 5.

[0029] Working principle: the piston 9 used in the present application is a product that can be directly purchased on the market, and its principle and connection mode are well known to those skilled in the art as prior art, so no further description is given here. In use, the device is first held by hand, the probe arrow 2 end is inserted into the sample, then the first control plate 6 is pushed, the probe arrow 2 is separated from the collection tube 1, the second control plate 10 is further pulled out, the displacement of the piston 9 is realized, the collection of the sample in the collection tube 1 is realized, and after the reset of the probe arrow 2 completes the plugging of the collection tube 1, the collection tube 1 can be pulled out, thereby completing the sample collection operation.

[0030] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A sample collection device, characterized by, Include: The collection pipe (1), the inside of the collection pipe (1) is slidably connected with the sliding rod (5), and one end of the sliding rod (5) is fixedly connected with the guide plate (4), the other end of the guide plate (4) is fixedly connected with the connecting rod (3), and the other end of the connecting rod (3) is threadedly connected with the probe arrow (2), the probe arrow (2) abuts the end of the collection pipe (1), the outside of the connecting rod (3) is sleeved with the sampling rod (7), and one end of the sampling rod (7) is fixedly connected with the connecting plate (8), the other end of the connecting plate (8) is fixedly connected with the piston (9), and the piston (9) is slidably connected with the inner wall of the collection pipe (1).

2. The sample collection device of claim 1, wherein: The outer wall of the collection pipe (1) is provided with a scale line, both ends of the probe arrow (2) are tapered structure, the end of the piston (9) close to the probe arrow (2) is provided with a groove matched with the tapered structure of the probe arrow (2).

3. The sample collection device of claim 1, wherein: The end of the sliding rod (5) away from the guide plate (4) is fixedly connected with the first control plate (6), and the guide plate (4) and the first control plate (6) are both provided with a through hole matched with the sampling rod (7).

4. A sample collection device according to claim 3, wherein: The sampling rod (7) penetrates to the outside of the first control plate (6), and the sampling rod (7) is circumferentially provided with four, and the outer wall of each sampling rod (7) is provided with a scale line.

5. The sample collection device of claim 1, wherein: The end of the sampling rod (7) away from the connecting plate (8) is provided with an external thread section, and the external thread section of the sampling rod (7) is threadedly connected with the second control plate (10), and the second control plate (10) is provided with a threaded cylinder corresponding to the threaded section of the sampling rod (7).

6. The sample collection device of claim 1, wherein: The center of the piston (9) is provided with a threaded hole matched with the connecting rod (3), and the connecting plate (8) is provided with a positioning hole, and the piston (9) is provided with a threaded hole corresponding to the positioning hole of the connecting plate (8).

7. The sample collection device of claim 5, wherein: The inner diameter of the sampling rod (7) is equal to the outer diameter of the connecting rod (3), and the outer diameter of the sampling rod (7) is a circular arc structure, and the outer diameter of the guide plate (4) and the sliding rod (5) is equal to the inner diameter of the collection pipe (1).

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