A test tube with a sealing plug

Abstract

The application discloses a test tube with a sealing plug, which comprises a sealing plug and an upper opening tube body, characterized in that an outer wall of the upper part of the tube body is provided with a sleeve, the sealing plug comprises a plug and a sealing cover, the plug is installed in the sealing cover, a sealing structure is arranged between the plug and the sealing cover, a first magnet is arranged in the sleeve, a second magnet with opposite magnetic poles to the first magnet is arranged in the sealing cover, when the sealing cover is arranged on the tube body, the lower part of the plug is inserted into the tube body and cooperates with the sealing structure to seal the upper opening of the tube body, the first magnet and the second magnet are attracted to each other. The application has the advantages of simple structure, sealing of the tube body through cooperation of the plug and the sealing structure, stable installation of the sealing plug on the tube body through mutual attraction of the first magnet and the second magnet after sealing, reliable sealing, and convenient sealing operation.

Description

Technical Field

[0001] This invention relates to a test tube, and more particularly to a test tube with a sealing plug. Background Technology

[0002] Test tubes are a commonly used instrument in various experiments. In some applications, sealing the test tubes is required, such as for aseptic operation or to prevent sample spillage or cross-contamination during transportation. Currently, the most common sealing method is to install a cork on the opening of the test tube. The tightness of the cork on the opening of the test tube plays a decisive role in the sealing performance. If it is too loose, the seal is poor; if it is too tight, it is difficult to remove. The force of the cork is difficult to control, and it is impossible to know whether it has loosened over time. Therefore, it has certain shortcomings in ensuring the sealing performance. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a test tube with a sealing plug that is simple in structure, reliable in sealing and easy to operate.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0005] A test tube with a sealing plug includes a sealing plug and a tube body with an upper opening. A sleeve is provided on the upper outer wall of the tube body. The sealing plug includes a stopper and a sealing cap. The stopper is installed inside the sealing cap. A sealing structure is provided between the stopper and the sealing cap to seal the upper opening of the tube body. A first magnet is provided inside the sleeve. A second magnet with opposite magnetic poles is provided inside the sealing cap at a position corresponding to the first magnet. When the sealing cap is placed on the tube body, the lower part of the stopper extends into the tube body and, together with the sealing structure, seals the upper opening of the tube body. The first magnet and the second magnet attract each other to achieve a stable sealing connection between the sealing plug and the tube body.

[0006] The plug includes a positioning mounting part and an insertion mounting part arranged sequentially from top to bottom. The positioning mounting part is fixedly installed inside the sealing cap, and the lower part of the insertion mounting part extends into the tube body. The structure is simple and easy to manufacture.

[0007] The positioning and mounting part has multiple positioning blocks protruding outwards on its side, spaced apart. The sealing structure is an annular sealing sheet, which is tightly fitted onto the extending mounting part. The positioning blocks rest on the annular sealing sheet, which is fixedly installed inside the sealing cover, thus simultaneously fixing the positioning and mounting part within the sealing cover. When the sealing cover is placed on the tube body, the lower end face of the annular sealing sheet is tightly fitted onto the tube body. Through the annular sealing sheet and the extending mounting part of the plug, an effective and stable seal can be achieved on the tube body. When the annular sealing sheet is fixedly installed inside the sealing cover, the plug is also fixedly installed on the sealing cover. The structure is simple and easy to assemble.

[0008] The sealing cap has a cavity with a lower opening. The annular sealing sheet is disposed within the lower opening of the cavity. A positioning post protrudes from the annular sealing sheet. A positioning mounting post is disposed within the cavity corresponding to the positioning post. The positioning mounting post has a positioning hole with a lower opening that mates with the positioning post. The positioning post is tightly inserted into the corresponding positioning hole to achieve fixed installation of the annular sealing sheet within the sealing cap. The above structure for fixed installation of the annular sealing sheet and the sealing cap is simple and easy to assemble.

[0009] The inner wall of the cavity is recessed outwards, providing a mounting slot for inserting the second magnet. The lower part of the mounting slot is an insertion notch, and the upper part is an upper limit stop. The second magnet is inserted from bottom to top into the corresponding mounting slot through the insertion notch and is stopped by the upper limit stop. The mounting slot achieves stable positioning and installation of the second magnet within the sealing cover.

[0010] A lower limiting cover is provided on the annular limiting piece corresponding to the insertion notch, extending outward. The lower limiting cover extends into the insertion notch to limit the installation of the second magnet. The inner side of the second magnet abuts against the outer surface of the annular sealing piece. The lower limiting cover serves two purposes: firstly, it limits the installation of the second magnet; secondly, it cooperates with the insertion notch to facilitate the alignment and installation of the positioning post and the positioning hole.

[0011] A side limiting part is provided extending downward from the lower outer side of the upper limit part, and the upper inner side of the second magnet abuts against the inner side surface of the side limiting part. The side limiting part further ensures the stable installation of the second magnet.

[0012] The stopper has an open inner cavity at the top and is made of rubber. A circuit board is installed inside the sealing cap, and the circuit board contains a monitoring circuit for monitoring the temperature and pressure of the inner cavity. This makes the test tube more intelligent.

[0013] Compared with the prior art, the advantages of the present invention are: simple structure, sealing of the tube body is achieved by the cooperation of the plug and the sealing structure, and after sealing, the sealing plug can be stably installed on the tube body by the mutual attraction of the first magnet and the second magnet, which ensures reliable sealing and convenient sealing operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0017] Figure 4 This is a three-dimensional structural diagram of the tube body in this invention;

[0018] Figure 5 This is a three-dimensional structural diagram of the plug and the annular sealing sheet being installed together in this invention;

[0019] Figure 6 This is a three-dimensional structural diagram of the annular sealing sheet and the sealing cap being fitted together in this invention.

[0020] Figure 7 This is a cross-sectional view of the annular sealing sheet and the sealing cap being fitted together in this invention.

[0021] Figure 8 This is a three-dimensional structural diagram of the sealing cap in this invention;

[0022] Figure 9 This is a three-dimensional structural diagram of the plug in this invention. Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] As shown in the figure, a test tube with a sealing plug includes a sealing plug 1 and a tube body 2 with an upper opening 21. A tube sleeve 3 is provided on the upper outer wall of the tube body 2. The sealing plug 1 includes a plug 101 and a sealing cap 102. The plug 101 is installed inside the sealing cap 102. A sealing structure 4 is provided between the plug 101 and the sealing cap 102 to seal the upper opening 21 of the tube body 2. A first magnet 31 is provided inside the tube sleeve 3. A second magnet 5 with opposite magnetic poles to the first magnet 31 is provided inside the sealing cap 102 at the position corresponding to the first magnet 31. When the sealing cap 102 is placed on the tube body 2, the lower part of the plug 101 extends into the tube body 2 and, together with the sealing structure 4, seals the upper opening 21 of the tube body 2. The first magnet 31 and the second magnet 5 attract each other to achieve a stable sealing connection between the sealing plug 1 and the tube body 2.

[0025] In this specific embodiment, multiple first magnets 31 are evenly distributed around the tube body 2, and the number and position of second magnets 5 correspond to the first magnets 31. This achieves a stable and sealed connection.

[0026] In this specific embodiment, the plug 101 includes a positioning mounting part 1011 and an insertion mounting part 1012 arranged sequentially from top to bottom. The positioning mounting part 1011 is fixedly installed inside the sealing cover 102, and the lower part of the insertion mounting part 1012 extends into the tube body 2. The structure is simple and easy to manufacture.

[0027] In this specific embodiment, the side of the positioning mounting part 1011 protrudes outward and is provided with multiple positioning blocks 1013, which are spaced apart. The sealing structure 4 is an annular sealing sheet, which is tightly fitted onto the extension mounting part 1012. The positioning blocks 1013 rest on the annular sealing sheet, and the annular sealing sheet is fixedly installed inside the sealing cover 102, thus simultaneously fixing the positioning mounting part 1011 inside the sealing cover 102. When the sealing cover 102 is placed on the tube body 2, the lower end face of the annular sealing sheet is tightly fitted onto the tube body 2. Through the annular sealing sheet and the extension mounting part 1012 of the plug 101, an effective and stable seal can be achieved on the tube body 2. When the annular sealing sheet is fixedly installed inside the sealing cover 102, the plug 101 is also fixedly installed on the sealing cover 102. The structure is simple and easy to assemble.

[0028] In this specific embodiment, the sealing cover 102 has a cavity 1021 with a lower opening. An annular sealing sheet is disposed within the lower opening of the cavity 1021. A positioning post 41 protrudes from the annular sealing sheet. A positioning mounting post 1022 is disposed within the cavity 1021 at a position corresponding to the positioning post 41. The positioning mounting post 1022 has a positioning hole 1023 with a lower opening that mates with the positioning post 41. The positioning post 41 is tightly inserted into the corresponding positioning hole 1023 to achieve fixed installation of the annular sealing sheet within the sealing cover 102. The above-described structure for fixed installation of the annular sealing sheet and the sealing cover 102 is simple and easy to assemble.

[0029] In this specific embodiment, a mounting slot 1024 for inserting the second magnet 5 is recessed outward on the inner wall of the cavity 1021. The lower part of the mounting slot 1024 is an insertion notch 1025, and the upper part of the mounting slot 1024 is provided with an upper limit part 1026. The second magnet 5 is inserted from bottom to top into the corresponding mounting slot 1024 through the insertion notch 1025 and is limited by the upper limit part 1026. The mounting slot 1024 achieves stable positioning and installation of the second magnet 5 within the sealing cover 102.

[0030] In this specific embodiment, a lower limiting cover 42 extends outward from the position corresponding to the insertion notch 1025 on the annular limiting piece. The lower limiting cover 42 extends into the insertion notch 1025 to form a lower limit for the installation of the second magnet 5, and the inner side of the second magnet 5 abuts against the outer surface of the annular sealing piece. The lower limiting cover 42 serves two purposes: first, it forms a lower limit for the installation of the second magnet 5; second, it cooperates with the insertion notch 1025 to facilitate the alignment and installation of the positioning post 41 and the positioning hole 1023.

[0031] In this specific embodiment, a side limiting part 1027 is provided extending downward from the lower outer side of the upper limit part 1026, and the upper inner side of the second magnet 5 abuts against the inner surface of the side limiting part 1027. The side limiting part 1027 further ensures the stable installation of the second magnet 5.

[0032] In this specific embodiment, the stopper 101 has an inner cavity 1010 with an upper opening 21. The stopper 101 is made of rubber material, and a circuit board 7 is disposed inside the sealing cap 102. The circuit board 7 is provided with a monitoring circuit for monitoring the temperature and pressure of the inner cavity 1010. This makes the test tube more intelligent.

Claims

1. A test tube with a sealing plug, comprising a sealing plug and a tube body with an opening at the top, characterized in that... A sleeve is provided on the upper outer wall of the tube body. The sealing plug includes a plug and a sealing cap. The plug is installed inside the sealing cap. A sealing structure is provided between the plug and the sealing cap to seal the upper opening of the tube body. A first magnet is provided inside the sleeve. A second magnet with opposite magnetic poles is provided inside the sealing cap at the position corresponding to the first magnet. When the sealing cap is placed on the tube body, the lower part of the plug extends into the tube body and, together with the sealing structure, seals the upper opening of the tube body. The first magnet and the second magnet attract each other to achieve a stable sealing connection between the sealing plug and the tube body. The plug includes a positioning mounting part and an insertion mounting part arranged sequentially from top to bottom. The positioning mounting part is fixedly installed inside the sealing cover, and the lower part of the insertion mounting part extends into the tube body. The side of the positioning and mounting part is provided with multiple positioning blocks that protrude outwards. The multiple positioning blocks are spaced apart. The sealing structure is an annular sealing sheet. The annular sealing sheet is tightly fitted and installed on the extending mounting part. The positioning blocks rest on the annular sealing sheet. The annular sealing sheet is fixedly installed inside the sealing cover, which also realizes the fixed installation of the positioning and mounting part inside the sealing cover. When the sealing cover is placed on the tube body, the lower end face of the annular sealing sheet is tightly fitted and attached to the tube body. The sealing cover has a cavity with a lower opening. The annular sealing sheet is disposed in the lower opening of the cavity. A positioning post is raised on the annular sealing sheet. A positioning mounting post is disposed in the cavity at a position corresponding to the positioning post. The positioning mounting post has a positioning hole with a lower opening that mates with the positioning post. The positioning post is tightly inserted into the corresponding positioning hole to achieve the fixed installation of the annular sealing sheet in the sealing cover.

2. A test tube with a sealing plug as described in claim 1, characterized in that... The inner wall of the cavity is recessed outward to provide a mounting slot for inserting the second magnet. The lower part of the mounting slot is an insertion notch, and the upper part of the mounting slot is provided with an upper limit part. The second magnet is inserted from the insertion notch from bottom to top into the corresponding mounting slot and is limited by the upper limit part.

3. A test tube with a sealing plug as described in claim 2, characterized in that... A lower limit cover is provided extending outward from the insertion notch. The lower limit cover extends into the insertion notch to form a lower limit for the installation of the second magnet. The inner side of the second magnet abuts against the outer surface of the annular sealing sheet.

4. A test tube with a sealing plug as described in claim 2 or 3, characterized in that... The lower outer side of the upper limit part is provided with a side limiting part, and the upper inner side of the second magnet abuts against the inner side surface of the side limiting part.

5. A test tube with a sealing plug as described in claim 1, characterized in that... The plug has an inner cavity with an upper opening. The plug is made of rubber material. A circuit board is installed inside the sealing cap. The circuit board is equipped with a monitoring circuit for monitoring the temperature and pressure of the inner cavity.

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