Sample injection chromatographic bottle for liquid chromatograph

Abstract

The sample injection chromatographic bottle comprises a sample injection chromatographic bottle body, the sample injection chromatographic bottle body is composed of a lower branch bottle and an upper branch bottle, a clamping groove is formed in an inner port of the lower branch bottle, a threaded ring is arranged on the outer wall of the clamping groove in a surrounding mode, an outer ring is arranged on the edge of the bottom of the upper branch bottle in a matched mode, and the outer ring is connected with the lower branch bottle in a matched mode. A first thread is arranged on the outer ring, the first thread of the upper branch bottle is aligned with and rotates with a threaded ring in a clamping groove formed in the lower branch bottle, the lower branch bottle can be connected with the upper branch bottle, a bottle opening is formed in the upper branch bottle, a sealing cover is arranged on the bottle opening in a matched mode, and the sealing cover is connected with the bottle opening in a screwed mode. When the inside of the sample introduction chromatographic bottle body needs to be cleaned after the sample introduction chromatographic bottle body is used, the detachable design allows a user to carefully clean each corner of the upper branch bottle and the lower branch bottle, so that residues can be completely removed, and cross contamination and deviation of analysis results are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling chromatographic vials, in particular to a sampling chromatographic vial for a liquid chromatograph. Background Technique

[0002] With the rapid development of social economy, people's research on liquids is also gradually progressing. Among them, the liquid chromatograph is one of the commonly used instruments for analyzing liquids. The liquid chromatograph is an instrument that uses the difference in the distribution ratio of a mixture between a liquid-solid or two immiscible liquids to separate the mixture first and then analyze and identify it. Among them, the sampling vial required by the liquid chromatograph directly affects the experimental results.

[0003] In the prior art, the patent publication number is CN218212814U, which discloses a sampling chromatographic vial for a liquid chromatograph, including a sampling chromatographic vial body, a cover body and a top plate. The cover body is movably sleeved outside the sampling chromatographic vial body, and a sealing ring is fixedly installed on the inner wall of the top of the cover body. The sealing ring is movably and hermetically abutted against the top of the sampling chromatographic vial body, and connecting plates are fixedly installed on both sides of the sampling chromatographic vial body. Connecting grooves are opened on both sides of the bottom of the top plate, and the two connecting plates are respectively movably inserted into the corresponding connecting grooves. Through the cooperation between the cover body, the top plate, the connecting plates, the square plate and the sealing ring, this device can achieve an efficient sealing effect on the sampling chromatographic vial. However, this device has certain defects. When the sampling chromatographic vial for a liquid chromatograph needs to be cleaned inside after use, and this device is an integrally designed sampling vial. Since the bottle body and the injection port are connected as a whole, cleaning tools such as small test tube brushes may not be able to reach the internal dead corners of the bottle completely, and these dead corners are prone to residual samples or solvents from the previous experiment, affecting the accuracy of subsequent analysis. Therefore, a sampling chromatographic vial for a liquid chromatograph is proposed. Summary of the Utility Model

[0004] Based on this, in view of the above technical problems, it is necessary to provide a sampling chromatographic vial for a liquid chromatograph, which can facilitate the cleaning work inside the sampling chromatographic vial for a liquid chromatograph.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions to solve the problems raised in the above background technique.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A sampling chromatographic vial for a liquid chromatograph, which includes:

[0008] Sampling chromatographic vial body, the sampling chromatographic vial body consists of a lower vial and an upper vial. A card slot is provided at the inner port of the lower vial, and a threaded ring is arranged around the outer wall of the card slot. An outer ring is provided at the bottom edge of the upper vial, and a first thread is provided on the outer ring. The first thread of the upper vial is aligned and rotated with the threaded ring in the card slot provided on the lower vial, so as to realize the connection between the lower vial and the upper vial. A bottle mouth is provided on the upper vial, and a sealing cap is provided in a matching manner. The sealing cap is screwed to the bottle mouth.

[0009] As a preferred embodiment of the sampling chromatographic vial for a liquid chromatograph provided by the present utility model, the card slot provided on the lower vial is adapted to the outer ring provided at the bottom edge of the upper vial, and the outer ring provided at the bottom edge of the upper vial is embedded in the card slot provided on the lower vial.

[0010] As a preferred embodiment of the sampling chromatographic vial for a liquid chromatograph provided by the present utility model, a sealing ring is installed in the card slot provided on the lower vial.

[0011] As a preferred embodiment of the sampling chromatographic vial for a liquid chromatograph provided by the present utility model, the size of the sealing ring is adapted to the card slot, and the sealing ring is embedded in the card slot.

[0012] As a preferred embodiment of the sampling chromatographic vial for a liquid chromatograph provided by the present utility model, an auxiliary component is installed on the sealing cap. The auxiliary component includes a movable rod, and one end of the movable rod is connected with a sealing sleeve ring.

[0013] As a preferred embodiment of the sampling chromatographic vial for a liquid chromatograph provided by the present utility model, the movable rod can drive the sealing sleeve ring to move up and down in the inner cavity of the bottle mouth provided on the upper vial.

[0014] As a preferred embodiment of the sampling chromatographic vial for a liquid chromatograph provided by the present utility model, the size of the sealing sleeve ring is adapted to the inner cavity of the bottle mouth provided on the upper vial.

[0015] As a preferred embodiment of the sampling chromatographic vial for a liquid chromatograph provided by the present utility model, an anti-slip component is installed below the lower vial. The anti-slip component includes a base connected to the bottom of the lower vial.

[0016] As a preferred embodiment of the sampling chromatographic vial for a liquid chromatograph provided by the present utility model, a second thread is provided at the bottom edge of the lower vial. An inner groove is provided in the base, and a connecting thread is provided on the side wall of the inner groove. The lower vial is screwed to the base.

[0017] As a preferred embodiment of the injection chromatographic vial for a liquid chromatograph provided by the present utility model, an anti-slip gasket is provided at the bottom of the base.

[0018] Compared with the prior art, the present utility model has the following beneficial effects:

[0019] 1. The injection chromatographic vial for a liquid chromatograph provided by the present utility model is composed of a lower vial and an upper vial. A card slot is provided at the inner port of the lower vial, and a threaded ring is provided around the outer wall of the card slot. When installing the injection chromatographic vial body, the staff only needs to align the outer ring provided at the bottom edge of the upper vial with the card slot provided in the lower vial, and then use the first thread provided on the outer ring at the bottom edge of the upper vial. By simply screwing the upper vial, the connection between the lower vial and the upper vial can be completed. After the sample liquid is poured into the injection chromatographic vial body, by screwing the sealing cap onto the bottle mouth, and then pushing the movable rod, the sealing sleeve ring at one end of the movable rod can be closely attached to the inner cavity of the bottle mouth. The sealing sleeve ring is made of rubber material. At the same time, the outer ring provided at the bottom edge of the upper vial is embedded with the card slot provided in the lower vial, so that the two can be closely connected. Together with the sealing ring provided in the card slot, the sealing performance of the connection between the lower vial and the upper vial can be ensured. When the inside of the injection chromatographic vial body needs to be cleaned after use, the detachable design allows the user to carefully clean every corner of the upper vial and the lower vial respectively, ensuring that these residues can be completely removed, thereby avoiding cross-contamination and deviation of the analysis results.

[0020] 2. For the injection chromatographic vial for a liquid chromatograph provided by the present utility model, after the lower vial and the upper vial are installed, a second thread is provided at the bottom edge of the lower vial, and a connecting thread is provided in the inner groove opened in the base. The user only needs to align the bottom of the lower vial with the inner groove of the base and then install it by screwing. Through the anti-slip gasket provided at the bottom of the base, the stability of the injection chromatographic vial body during placement can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic three-dimensional structure diagram of the whole provided by the present utility model;

[0023] Figure 2 It is a schematic diagram of the whole disassembled structure provided by the present utility model;

[0024] Figure 3Schematic diagram of the installation structure of the upper sample bottle and the lower sample bottle provided by the present utility model;

[0025] Figure 4 Schematic diagram of the installation structure of the upper sample bottle, the bottle mouth, the sealing cover, and the auxiliary component provided by the present utility model;

[0026] Figure 5 Schematic diagram of the installation structure of the sealing ring provided by the present utility model;

[0027] Figure 6 Schematic diagram of the installation structure of the anti-slip component and the lower sample bottle provided by the present utility model.

[0028] The markings in the figure are explained as follows:

[0029] 100, injection chromatographic vial body; 101, lower sample bottle; 102, upper sample bottle; 103, card slot; 104, thread ring; 105, first thread; 106, bottle mouth; 107, sealing cover; 108, second thread; 200, auxiliary component; 201, movable rod; 202, sealing sleeve ring; 300, sealing ring; 400, anti-slip component; 401, base; 402, connecting thread. Specific implementation manners

[0030] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0031] Embodiment 1

[0032] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6, An injection chromatographic vial for a liquid chromatograph. The injection chromatographic vial body 100 is composed of two parts: a lower vial 101 and an upper vial 102. A card slot 103 is provided at the inner port of the lower vial 101, and a thread ring 104 is arranged around the outer wall of the card slot 103. A matching outer ring is provided at the bottom edge of the upper vial 102, and a first thread 105 is provided on the outer ring. The first thread 105 of the upper vial 102 is aligned and rotated with the thread ring 104 in the card slot 103 provided in the lower vial 101, so that the lower vial 101 and the upper vial 102 can be connected. A bottle mouth 106 is provided on the upper vial 102, and a sealing cap 107 is provided in a matching manner. The sealing cap 107 is screwed to the bottle mouth 106.

[0033] In an embodiment of the present application, the card slot 103 provided in the lower vial 101 is adapted to the matching outer ring provided at the bottom edge of the upper vial 102. The matching outer ring provided at the bottom edge of the upper vial 102 is embedded in the card slot 103 provided in the lower vial 101. A sealing ring 300 is installed in the card slot 103 provided in the lower vial 101. The size of the sealing ring 300 is adapted to the card slot 103, and the sealing ring 300 is embedded in the card slot 103. An auxiliary component 200 is installed on the sealing cap 107. The auxiliary component 200 includes a movable rod 201. One end of the movable rod 201 is connected with a sealing sleeve ring 202. The movable rod 201 can drive the sealing sleeve ring 202 to move up and down in the inner cavity of the bottle mouth 106 provided in the upper vial 102. The size of the sealing sleeve ring 202 is adapted to the inner cavity of the bottle mouth 106 provided in the upper vial 102. The injection chromatographic vial body 100 is composed of two parts: a lower vial 101 and an upper vial 102. By providing a card slot 103 at the inner port of the lower vial 101 and arranging a thread ring 104 around the outer wall of the card slot 103, when installing the injection chromatographic vial body 100, the staff only needs to align the outer ring provided at the bottom edge of the upper vial 102 with the card slot 103 provided in the lower vial 101, and then cooperate with the first thread 105 provided on the outer ring at the bottom edge of the upper vial 102. By simply screwing the upper vial 102, the connection between the lower vial 101 and the upper vial 102 can be completed. After the sample liquid is poured into the injection chromatographic vial body 100, by screwing the sealing cap 107 to the bottle mouth 106, and then pushing the movable rod 201, the sealing sleeve ring 202 at one end of the movable rod 201 is tightly attached to the inner cavity of the bottle mouth 106. The sealing sleeve ring 202 is made of rubber material. At the same time, the outer ring provided at the bottom edge of the upper vial 102 is embedded in the card slot 103 provided in the lower vial 101, so that the two can be tightly connected. Together with the sealing ring 300 provided in the card slot 103, the sealing performance of the connection between the lower vial 101 and the upper vial 102 can be ensured. When the inside of the injection chromatographic vial body 100 needs to be cleaned after use, the detachable design allows the user to carefully clean every corner of the upper vial 102 and the lower vial 101 respectively, ensuring that these residues can be completely removed, thereby avoiding cross-contamination and deviation of analysis results.

[0034] In an embodiment of the present application, an anti-slip member 400 is installed below the lower dispensing bottle 101. The anti-slip member 400 includes a base 401 connected to the bottom of the lower dispensing bottle 101. A second thread 108 is provided at the bottom edge of the lower dispensing bottle 101. An inner groove is formed in the base 401, and a connecting thread 402 is provided on the side wall of the inner groove. The lower dispensing bottle 101 is screwed to the base 401. An anti-slip gasket is provided at the bottom of the base 401. After the lower dispensing bottle 101 and the upper dispensing bottle 102 are installed, due to the second thread 108 provided at the bottom edge of the lower dispensing bottle 101 and the connecting thread 402 provided in the inner groove of the base 401, the user only needs to align the bottom of the lower dispensing bottle 101 with the inner groove of the base 401 and then screw them together. Through the anti-slip gasket provided at the bottom of the base 401, the stability of the sampling chromatographic vial body 100 during placement can be ensured.

[0035] The use process of a sampling chromatographic vial for a liquid chromatograph provided by the present utility model is as follows: The staff aligns the outer ring provided at the bottom edge of the upper dispensing bottle 102 with the card slot 103 provided on the lower dispensing bottle 101, and then uses the first thread 105 provided on the outer ring at the bottom edge of the upper dispensing bottle 102. By simply screwing the upper dispensing bottle 102, the connection between the lower dispensing bottle 101 and the upper dispensing bottle 102 can be completed. After the sample liquid is poured into the sampling chromatographic vial body 100, the sealing cap 107 is screwed to the bottle mouth 106, and then by pushing the movable rod 201, the sealing sleeve ring 202 at one end of the movable rod 201 is closely attached to the inner cavity of the bottle mouth 106. The sealing sleeve ring 202 is made of rubber material. At the same time, due to the outer ring provided at the bottom edge of the upper dispensing bottle 102 being embedded in the card slot 103 provided on the lower dispensing bottle 101, the two can be closely connected. Together with the sealing ring 300 provided in the card slot 103, the sealing performance of the connection between the lower dispensing bottle 101 and the upper dispensing bottle 102 can be ensured. When the inside of the sampling chromatographic vial body 100 needs to be cleaned after use, the detachable design allows the user to carefully clean every corner of the upper dispensing bottle 102 and the lower dispensing bottle 101 respectively, ensuring that these residues can be completely removed.

[0036] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all of them. The preferred embodiments of the present utility model are shown in the drawings, but they do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structures made by using the content of the specification and drawings of the present utility model, directly or indirectly applied to other related technical fields, are equally within the scope of the patent protection of the present utility model.

Claims

1. An injection chromatographic vial for a liquid chromatograph, characterized in that, It includes: An injection chromatographic vial body (100), which is composed of a lower vial (101) and an upper vial (102). A card slot (103) is provided at the inner port of the lower vial (101). A thread ring (104) is arranged around the outer wall of the card slot (103). An outer ring is provided at the bottom edge of the upper vial (102). A first thread (105) is provided on the outer ring. The first thread (105) of the upper vial (102) is aligned and rotated with the thread ring (104) in the card slot (103) provided in the lower vial (101), so that the lower vial (101) and the upper vial (102) can be connected. A bottle mouth (106) is provided on the upper vial (102), and a sealing cap (107) is provided in a matching manner. The sealing cap (107) is screwed to the bottle mouth (106).

2. The sampling chromatographic vial for a liquid chromatograph according to claim 1, wherein The card slot (103) provided in the lower vial (101) is adapted to the outer ring provided at the bottom edge of the upper vial (102), and the outer ring provided at the bottom edge of the upper vial (102) is embedded in the card slot (103) provided in the lower vial (101).

3. The sampling chromatographic vial for a liquid chromatograph according to claim 2, characterized in that, A sealing ring (300) is installed in the card slot (103) provided in the lower vial (101).

4. The sampling chromatographic vial for a liquid chromatograph according to claim 3, characterized in that, The size of the sealing ring (300) is adapted to the card slot (103), and the sealing ring (300) is fitted in the card slot (103).

5. The sampling chromatographic vial for a liquid chromatograph according to claim 1, characterized in that, An auxiliary component (200) is installed on the sealing cap (107). The auxiliary component (200) includes a movable rod (201), and a sealing sleeve ring (202) is connected to one end of the movable rod (201).

6. The sampling chromatographic vial for a liquid chromatograph according to claim 5, characterized in that, The movable rod (201) can drive the sealing sleeve ring (202) to move up and down in the inner cavity of the bottle mouth (106) provided on the upper vial (102).

7. The sampling chromatographic vial for a liquid chromatograph according to claim 6, wherein The size of the sealing sleeve ring (202) is adapted to the inner cavity of the bottle mouth (106) provided on the upper vial (102).

8. A sample injection chromatographic vial for a liquid chromatograph, characterized in that, An anti-slip component (400) is installed below the lower vial (101). The anti-slip component (400) includes a base (401) connected to the bottom of the lower vial (101).

9. The sampling chromatographic vial for a liquid chromatograph according to claim 8, characterized in that, A second thread (108) is provided at the bottom edge of the lower vial (101). An inner groove is provided in the base (401), and a connecting thread (402) is provided on the side wall of the inner groove. The lower vial (101) is screwed to the base (401).

10. A sample injection chromatographic vial for a liquid chromatograph, characterized in that, An anti-slip gasket is provided at the bottom of the base (401).

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