Sample storage tube for environmental monitoring

Abstract

The utility model discloses an environmental monitoring sample storage tube, which belongs to the technical field of environmental monitoring and comprises a tube body, a piston component matched with the tube body is slidably mounted in the tube body, an operation component is fixedly mounted at the rear end of the piston component, and a fine suction hole and a sealing cover for blocking the fine suction hole are arranged at the front end of the tube body. A plurality of synchronizing rods distributed in an annular array are fixedly connected between the sealing cover and the operation assembly, a limiting ring is fixedly connected to an opening in the rear end of the tube body, and through the structural design that the piston assembly and the operation assembly are slidably installed and the synchronizing rods are connected with the sealing cover and the operation assembly, rapid collection and automatic sealing of samples are achieved; in the sampling process, a sample can be sucked into the sample storage tube through atmospheric pressure only by pulling the operation assembly backwards, the operation is simple, convenient and rapid, meanwhile, the integrity of the sample is ensured through the fit sealing of the sealing cover and the fine suction hole, and the problem of sample leakage is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of environmental monitoring, more specifically, relate to a kind of environmental monitoring sample storage tube. BACKGROUND

[0002] In the field of environmental monitoring, sample collection, preservation and analysis are the key steps to obtain accurate environmental data. Traditional environmental monitoring sample storage tube has many deficiencies in sample collection process, which limits the efficiency and accuracy of environmental monitoring.

[0003] Firstly, the traditional sample storage tube often needs to control the suction and discharge of sample by manually operating piston or valve when collecting sample, which is not only cumbersome, but also easy to introduce human error. In addition, the sealing performance of piston or valve is often difficult to guarantee, which can easily lead to sample leakage, thereby affecting the integrity and representativeness of sample.

[0004] Secondly, the traditional sample storage tube also has deficiencies in sample preservation. Due to the limited internal space of sample storage tube and the lack of effective sealing measures, sample is easily affected by external environment during preservation, such as changes in temperature, humidity, light and other factors, which can cause changes in sample properties and affect subsequent analysis results.

[0005] Furthermore, after sampling is completed, the traditional sample storage tube usually needs additional locking mechanism to prevent sample leakage, which not only increases the complexity of operation, but also the locking mechanism itself can become a source of sample contamination. In addition, the reliability and durability of locking mechanism are also important factors to consider. SUMMARY

[0006] 1. Technical problem to be solved

[0007] In view of the problems existing in the prior art, the purpose of the utility model is to provide an environmental monitoring sample storage tube, which realizes rapid sample collection and automatic sealing through the structure design of slidingly installed piston assembly and operation assembly, and synchronous rod connecting sealing cover and operation assembly. During sampling, only need to pull the operation assembly backward to suck the sample into the sample storage tube through atmospheric pressure, which is simple and convenient. At the same time, the sealing of sealing cover and fine suction hole ensures the integrity of sample and avoids the problem of sample leakage.

[0008] 2. Technical scheme

[0009] To solve the above problems, the utility model adopts the following technical scheme.

[0010] An environment monitoring sample storage tube, comprising a tube body, a matched piston assembly is slidably installed in the tube body, an operating assembly is fixedly installed at the rear end of the piston assembly, a fine suction hole is formed at the front end of the tube body and a sealing cover is arranged to block the fine suction hole, a plurality of synchronizing rods arranged in an annular array are fixedly connected between the sealing cover and the operating assembly, and a limiting ring is fixedly connected at the opening of the rear end of the tube body.

[0011] Further, the sealing cover comprises a base plate, a pressing plate is fixedly connected to one end of the base plate close to the tube body, and a sealing gasket is fixedly connected to one end of the pressing plate close to the tube body, so that the sealing gasket can be forced to seal the fine suction hole well by applying a physical extrusion force.

[0012] Further, the piston assembly comprises a piston block, a protection plate is fixedly connected to one end of the piston block close to the operating assembly, and a bearing is fixedly installed on the protection plate, so that the protection plate can protect the piston block and the bearing can be connected with the operating assembly and meet the rotation requirement of the operating assembly.

[0013] Further, the sealing cover comprises an operating plate, a through hole is formed in the operating plate, a connecting rod is inserted into the through hole, one end of the connecting rod is rotatably installed on the protection plate, the other end of the connecting rod penetrates through the through hole and is fixedly connected with a rotating plate, and the rotating plate can be rotated and linearly moved.

[0014] Further, the limiting ring comprises a fixed ring body, a pair of L-shaped grooves are formed in the inner side wall of the fixed ring body, and magnetic attraction blocks one are fixedly connected to the bottom of the horizontal sections of the L-shaped grooves.

[0015] Further, a pair of extension blocks corresponding to the L-shaped grooves are fixedly connected to the outer side wall of the connecting rod, magnetic attraction blocks two are fixedly connected to the outer ends of the extension blocks and are attracted to the magnetic attraction blocks one, the extension blocks can be linearly moved into the L-shaped grooves, and then the magnetic attraction blocks two are rotated by the magnetic attraction of the magnetic attraction blocks one, so that the operating assembly is limited and cannot be continuously moved, and the sealing of the sample is maintained.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] (1) The piston assembly and the operating assembly are slidably installed, the sealing cover and the operating assembly are connected through the structure design of the synchronizing rods, the rapid collection and automatic sealing of the sample are realized, in the sampling process, the sample can be sucked into the sample storage tube through the atmospheric pressure by pulling the operating assembly backward, the operation is simple and fast, meanwhile, the sealing of the sealing cover and the fine suction hole guarantees the integrity of the sample and avoids the problem of sample leakage.

[0019] (2) The utility model discloses through setting up the structure such as limiting ring and magnetic attraction piece, the utility model discloses the self -locking function of operating assembly is realized, after sampling, the extension block on connecting rod slides to the junction along L type groove and is under the action of magnetic attraction piece and rotates independently and contacts to lock the position of operating assembly, prevent the leakage and pollution of sample. This self -locking function not only improves the preservation quality of sample, and avoids the use of additional locking mechanism, simplifies the operation process. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is the structural diagram of the utility model;

[0021] Fig. 2 It is the sectional view of the utility model;

[0022] Fig. 3 It is the structural diagram of the limiting ring part in the utility model.

[0023] Mark explanation in drawing:

[0024] 1, pipe body;2, sealing cover;201, base plate;202, pressing plate;203, sealing gasket;3, operating assembly;301, operating plate;302, connecting rod;303, rotating plate;4, limiting ring;401, fixed ring body;402, L type groove;403, magnetic attraction piece one;5, synchronous rod;6, piston assembly;601, piston block;602, protection plate;603, bearing;7, extension block;8, magnetic attraction piece two;9, fine suction hole. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model;Obviously, the described embodiments are only part of the embodiments of the utility model, not 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.

[0026] In the description of the utility model, it is necessary to explain that the orientation or position relationship indicated by the terms "up", "down", "in", "out", "top / bottom end" is the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the 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, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "set with", "sleeve / interface", "connection" and the like, should do broad sense understanding, for example "connection", can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0028] Embodiment 1:

[0029] Please refer to Figs. 1-3 An environmental monitoring sample storage tube, comprising a pipe body 1, a matched piston assembly 6 is slidably installed in the pipe body 1, an operating assembly 3 is fixedly installed at the rear end of the piston assembly 6, a fine suction hole 9 is formed at the front end of the pipe body 1 and is provided with a sealing cover 2 for plugging the fine suction hole 9, a plurality of synchronizing rods 5 arranged in annular array are fixedly connected between the sealing cover 2 and the operating assembly 3, and a limiting ring 4 is fixedly connected at the opening of the rear end of the pipe body 1.

[0030] The sealing cover 2 comprises a base plate 201, a pressing plate 202 is fixedly connected to one end of the base plate 201 close to the pipe body 1, a sealing gasket 203 is fixedly connected to one end of the pressing plate 202 close to the pipe body 1, and the sealing gasket 203 is forced to seal the fine suction hole 9 well by applying physical extrusion force.

[0031] The piston assembly 6 comprises a piston block 601, a protection plate 602 is fixedly connected to one end of the piston block 601 close to the operating assembly 3, a bearing 603 is fixedly installed on the protection plate 602, and the protection plate 602 plays a protection role on the piston block 601, and the bearing 603 can establish a connection relationship with the operating assembly 3 while meeting the rotation of the operating assembly 3.

[0032] The sealing cover 2 comprises an operating plate 301, a through hole is formed in the operating plate 301, a connecting rod 302 is inserted in the through hole, one end of the connecting rod 302 is rotatably installed on the protection plate 602, the other end of the connecting rod 302 penetrates through the through hole and is fixedly connected with a rotating plate 303, and the rotating plate 303 can be rotated and linearly moved through the setting.

[0033] The limiting ring 4 comprises a fixed ring body 401, a pair of L-shaped grooves 402 are formed on the inner side wall of the fixed ring body 401, and magnetic attraction blocks one 403 are fixedly connected to the bottom of the horizontal section of the L-shaped grooves 402.

[0034] The outer side wall of the connecting rod 302 is fixedly connected with a pair of extension blocks 7 corresponding to the L-shaped groove 402, the outer end of the extension block 7 is fixedly connected with a magnetic attraction block two 8 which is attracted to the magnetic attraction block one 403, the extension block 7 can be moved into the L-shaped groove 402 in a straight line, then it is rotated by the magnetic attraction of the magnetic attraction block one 403 to the magnetic attraction block two 8, so as to limit the operation assembly 3, so that it cannot continue to move, and the sealing of the sample is maintained.

[0035] In use, the gas or water body can be collected, the fine suction hole 9 is inserted into the sample area to be collected, then the operation plate 301 is pulled back, and then the sealing cover 2 and the piston assembly 6 are driven to move backward, the piston assembly 6 sucks the collected sample into the pipe body 1 by atmospheric pressure to save it, until the sealing cover 2 is in close contact with the fine suction hole 9 to seal, at this time the extension block 7 on the connecting rod 302 is just slid to the junction of the L-shaped groove 402, then under the magnetic attraction of the magnetic attraction block one 403, the connecting rod 302 is driven to rotate automatically to contact, at this time the sealing cover 2, the operation assembly 3 and the piston assembly 6 cannot move in a straight line, so that the integrity of the sample is ensured, when the sample needs to be taken out, the rotating plate 303 is rotated to push forward, at this time the sealing cover 2 also leaves the fine suction hole 9, and the sample can be smoothly taken out, compared with the prior art, the utility model can realize rapid sampling of the sample, and the self-locking is ensured after the sampling is completed, so that the integrity of the sample is ensured, and the operation is simple and convenient.

[0036] The above is only a preferred specific embodiment of the utility model; however, the protection scope of the utility model is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and improvement concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. An environmental monitoring sample storage tube, characterized in that: The tube (1) includes a pipe body (1), a matching piston assembly (6) is slidably installed inside the pipe body (1), an operating assembly (3) is fixedly installed at the rear end of the piston assembly (6), a fine suction hole (9) is opened at the front end of the pipe body (1) and a sealing cover (2) is provided to block the fine suction hole (9), a plurality of synchronous rods (5) arranged in a ring array are fixedly connected between the sealing cover (2) and the operating assembly (3), and a limit ring (4) is fixedly connected at the opening at the rear end of the pipe body (1).

2. The environmental monitoring sample storage tube according to claim 1, characterized in that: The sealing cap (2) includes a base plate (201), and a pressure plate (202) is fixedly connected to one end of the base plate (201) near the tube body (1). A sealing gasket (203) is fixedly connected to one end of the pressure plate (202) near the tube body (1).

3. The environmental monitoring sample storage tube according to claim 2, characterized in that: The piston assembly (6) includes a piston block (601), and a protective plate (602) is fixedly connected to one end of the piston block (601) near the operating assembly (3). A bearing (603) is fixedly installed on the protective plate (602).

4. The environmental monitoring sample storage tube according to claim 3, characterized in that: The sealing cover (2) includes an operating plate (301), on which a through hole is provided. A connecting rod (302) is inserted into the through hole. One end of the connecting rod (302) is rotatably mounted on the protective plate (602), and the other end passes through the through hole and is fixedly connected to a rotating plate (303).

5. An environmental monitoring sample storage tube according to claim 4, characterized in that: The limiting ring (4) includes a fixed ring body (401), and a pair of L-shaped grooves (402) are provided on the inner side wall of the fixed ring body (401). A magnetic block (403) is fixedly connected to the bottom of the horizontal section of the L-shaped groove (402).

6. An environmental monitoring sample storage tube according to claim 5, characterized in that: A pair of extension blocks (7) corresponding to the L-shaped groove (402) are fixedly connected to the outer wall of the connecting rod (302), and a magnetic block (8) that attracts the magnetic block one (403) is fixedly connected to the outer end of the extension block (7).

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