Multi-channel solid-phase extraction column sample passing treatment structure

Abstract

The utility model discloses a multichannel solid-phase extraction column sample passing treatment structure which comprises a solid-phase extraction column sample passing structure and a sample tube heating and moving structure, the solid-phase extraction column sample passing structure is provided with a sample adding part, a plurality of solid-phase extraction columns and a mounting part for mounting the plurality of solid-phase extraction columns, and the sample adding part is of a multi-channel structure and corresponds to the plurality of solid-phase extraction columns; the mounting part is of a lifting structure and a rotating structure, so that the plurality of solid-phase extraction columns can be lifted or rotated by a certain angle; the sample tube heating and moving structure is arranged below the solid-phase extraction column sample passing structure and is used for receiving sample liquid, receiving waste liquid and heating the sample liquid. The multi-channel solid-phase extraction device is small in size, adopts a multi-channel structure, is simple in structure, is convenient to replace the solid-phase extraction column and the sample tube, does not need human intervention during operation, realizes multiple functions of heating and moving the sample tube, discharging waste liquid and the like, and is compact in structure.

Description

Technical Field

[0001] The utility model relates to solid phase extraction, in particular to a multi-channel solid phase extraction column sample processing structure. Background Art

[0002] The multi-channel solid phase extraction instruments currently on the market have a large space volume and a low degree of modularity. They are often used as a separate device and cannot be integrated into automated equipment, resulting in a limited scope of application. Utility Model Content

[0003] In order to solve the defects of the prior art, the utility model provides a multi-channel solid phase extraction column sample processing structure. The utility model has a small size, a multi-channel structure, a simple structure, and is easy to replace the solid phase extraction column and the sample tube, and does not require human intervention during operation.

[0004] In order to achieve the above technical purpose, the utility model adopts the following technical scheme: a multi-channel solid phase extraction column sample processing structure, including a solid phase extraction column sample structure and a sample tube heating and moving structure;

[0005] The solid phase extraction column sample passing structure is provided with a sample loading part, a plurality of solid phase extraction columns, and a mounting part for mounting the plurality of solid phase extraction columns. The sample loading part is a multi-channel structure corresponding to the plurality of solid phase extraction columns. The mounting part is a lifting structure and a rotating structure so that the plurality of solid phase extraction columns can be lifted or rotated by a certain angle.

[0006] The sample tube heating and moving structure is placed below the solid phase extraction column sample passing structure to receive sample liquid, receive waste liquid, and heat sample liquid.

[0007] Furthermore, the sample adding part includes a first fixed plate, a multi-way valve mounting plate fixed to the first fixed plate, and a multi-way valve installed in the multi-way valve mounting plate; the multi-way valve is provided with an inlet connector and a plurality of nozzles, and the plurality of nozzles correspond to the plurality of solid phase extraction columns.

[0008] Furthermore, the mounting portion includes a placement seat, a mounting plate, and a vertical rod, the placement seat is used to mount the multiple solid phase extraction columns; the placement seat is hingedly mounted on the mounting plate so that the placement seat can rotate, and the mounting plate is slidably connected to the vertical rod so that the placement seat can be raised and lowered.

[0009] Furthermore, a vertical rod stopper is fixed to the bottom end of the vertical rod for limiting the minimum height of the placement seat, and a top end of the vertical rod is fixed to the multi-way valve mounting plate for limiting the maximum height of the placement seat.

[0010] Furthermore, a plunger pin is installed on the inner side of the mounting plate, a plunger pin baffle is provided on the side of the placement seat, the plunger pin baffle is provided with a U-shaped groove, and the plunger pin moves in the U-shaped groove to limit the rotation angle of the placement seat.

[0011] Furthermore, the first fixing plate is provided with positioning pins for keeping the mounting plate at a constant maximum height.

[0012] Furthermore, the first fixing plate is provided with a first lever, a second lever, and a fixing seat, the fixing seat is penetrated by a connecting rod, the first lever and the second lever respectively fix two ends of the connecting rod; the first lever and the second lever respectively pass through the first fixing plate and are fixedly connected to the placement seat.

[0013] Furthermore, a retaining ring is fixed to the connecting rod, and a return spring is arranged between the fixing seat and the retaining ring.

[0014] Furthermore, the sample tube heating and moving structure includes a sample tube, a waste liquid tank, a sample tube placement seat, a heating film, a temperature sensor, a waste liquid pipe joint, and a waste liquid tank side plate; the waste liquid tank is opened on one side of the sample tube placement seat, the sample tube is arranged on the sample tube placement seat, and the waste liquid tank is provided with the waste liquid pipe joint and the waste liquid tank side plate; the sample tube placement seat is provided with the heating film and the temperature sensor; and it also includes a module connected to the sample tube placement seat.

[0015] Furthermore, it also includes a module bracket for fixedly installing the solid phase extraction column sample passing structure and the sample tube heating and moving structure.

[0016] In summary, the utility model has achieved the following technical effects:

[0017] The sample passing structure of the solid phase extraction column of the utility model has multiple channels, and in this case, there are 6 channels;

[0018] The solid phase extraction column placement seat of the solid phase extraction column sample passing structure of the utility model can be moved up and down, and can be tilted forward to facilitate the replacement of the solid phase extraction column;

[0019] The solid phase extraction column sample passing structure of the utility model can realize the position limitation of the solid phase extraction column placement seat during the sample passing process through the lever structure;

[0020] The sample tube heating and moving structure of the utility model realizes multiple functions such as sample tube heating, movement and waste liquid discharge, and has a compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall structural diagram provided by an embodiment of the utility model;

[0022] Figure 2This is a front view of the sample fixing structure of the solid phase extraction column;

[0023] Figure 3 This is a side view of the sample fixing structure of the solid phase extraction column;

[0024] Figure 4 This is a diagram of the sample tube fixed heating and moving structure;

[0025] Figure 5 This is a diagram of the module bracket architecture. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0027] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] Example:

[0033] like Figure 1 As shown, a multi-channel solid phase extraction column sample processing structure includes a solid phase extraction column sample structure 1 and a sample tube heating and moving structure 2; it also includes a module bracket 3 for fixing and installing the solid phase extraction column sample structure 1 and the sample tube heating and moving structure 2.

[0034] Among them, the solid phase extraction column sample passing structure 1 is provided with a sample loading part, multiple solid phase extraction columns 109, and a mounting part for mounting multiple solid phase extraction columns 109. The sample loading part is a multi-channel structure and corresponds to multiple solid phase extraction columns 109. The mounting part is a lifting structure and a rotating structure so that the multiple solid phase extraction columns 109 can be lifted or rotated by a certain angle to facilitate the replacement of the solid phase extraction columns 109; the sample tube heating and moving structure 2 is placed below the solid phase extraction column sample passing structure 1 to receive sample liquid, receive waste liquid, and heat sample liquid.

[0035] Specifically, Figure 2 The figure shows a schematic diagram of the sample passing structure of the solid phase extraction column. The sample adding part includes a first fixing plate 100, a multi-way valve mounting plate 101 fixed to the first fixing plate 100, and a multi-way valve 102 installed in the multi-way valve mounting plate 101; the multi-way valve 102 is provided with an inlet connector 103 and a plurality of nozzles 104. The plurality of nozzles 104 correspond to a plurality of solid phase extraction columns 109 and are used to deliver the sample liquid to the solid phase extraction columns 109. The nozzle 104 is also provided with an O-ring 105 for sealing the nozzle.

[0036] The multi-way valve 102 of the present invention adopts an eight-way valve and has six nozzles. As a multi-channel structure, multiple samples can be added simultaneously.

[0037] The installation part can be raised and lowered and rotated forward to facilitate the replacement of solid phase extraction columns.

[0038] The mounting portion includes a placement seat 108, a mounting plate 107, and a vertical rod 106. The placement seat 108 is installed with a plurality of solid phase extraction columns 109; the number of solid phase extraction columns 109 is 6. The placement seat 108 is hingedly mounted on the mounting plate 107 so that the placement seat 108 can rotate, and the mounting plate 107 is slidably connected to the vertical rod 106 so that the placement seat 108 can be raised and lowered, thereby allowing the solid phase extraction column 109 to rise or fall and rotate to replace the solid phase extraction column 109.

[0039] Specifically, a vertical rod stopper 115 is fixed to the bottom end of the vertical rod 106 to limit the lowest height of the placement seat 108, and the top end of the vertical rod 106 is fixed to the multi-way valve mounting plate 101 to limit the highest height of the placement seat 108. The placement seat 108 is provided with a second handle 111, and the placement seat can be pulled up and down by pulling the second handle 111.

[0040] The mounting plate 107 is also provided with a positioning pin, and the placement seat 108 is hinged to the positioning pin, so that the placement seat 108 can rotate. A plunger pin 112 is installed on the inner side of the mounting plate 107, and a plunger pin baffle 113 is provided on the side of the placement seat 108. The plunger pin baffle 113 has a U-shaped groove, and the plunger pin 112 moves in the U-shaped groove to limit the rotation angle of the placement seat 108 and prevent the placement seat 108 from rotating excessively. The placement seat 108 is provided with a first handle 110, and the placement seat 108 rotates by pulling the first handle 110.

[0041] like Figure 3 The figure shows another angle diagram of the solid phase extraction column sample passing structure. The first fixed plate 100 is provided with a first lever 117, a second lever 122, and a fixed seat 121. The fixed seat 121 is penetrated with a connecting rod 118. The first lever 117 and the second lever 122 respectively fix the two ends of the connecting rod 118. The first lever 117 and the second lever 122 respectively pass through the first fixed plate 100 and are fixedly connected to the placement seat 108. The connecting rod 118 is fixed with a retaining ring 120, and a return spring 119 is provided between the fixed seat 121 and the retaining ring 120.

[0042] The return spring 119 is a compression spring.

[0043] The mounting plate 107 is fixedly provided with a positioning pin 116, which cooperates with the first lever 117 and the second lever 122 to control the height of the mounting plate 107 after being reset by the return spring 119. In this embodiment, the first lever 117 and the second lever 122 have an inclined surface in the height direction, which faces the positioning pin 116 and can contact the positioning pin 116. When the mounting plate 107 moves upward, the positioning pin 116 will push the first lever 117 and the second lever 122 to move in the compression direction of the return spring 119 along the inclined surface. After the positioning pin 116 exceeds the upper end surface of the first lever 117 and the second lever 122, the positioning pin 116 leaves the inclined surface and leaves the first lever 117 and the second lever 122. The return spring 119 loses its thrust and then rebounds to push the first lever 117 and the second lever 122 back to their original positions, thereby blocking the positioning pin 116 and preventing the mounting plate 107 from falling.

[0044] like Figure 4 As shown, the sample tube heating and moving structure 2 includes a sample tube 201, a waste liquid tank 202, a sample tube placement seat 203, a heating film 204, a temperature sensor 205, a waste liquid pipe joint 206, and a waste liquid tank side plate 207; the waste liquid tank 202 is opened on one side of the sample tube placement seat 203, the sample tube 201 is arranged on the sample tube placement seat 203, and the waste liquid tank 202 is provided with a waste liquid pipe joint 206 and a waste liquid tank side plate 207; the waste liquid tank fixing plate 213 is used to fix the sample tube placement seat 203 to the module 214; the sample tube placement seat 203 is provided with a heating film 204 and a temperature sensor 205; and also includes a module 214 connected to the sample tube placement seat 203, and the module 214 adopts a screw structure to drive the sample tube placement seat 203 to move.

[0045] The sample tube heating and moving structure 2 further includes an in-situ sensor 210 , an in-situ sensor baffle fixing seat 208 , and an in-situ sensor baffle 209 . The in-situ sensor 210 is used for locating the origin of the module 214 .

[0046] It also includes a drag chain 211 , a first drag chain mounting sheet metal 212 , a second fixing plate 215 , and a second drag chain mounting sheet metal 216 .

[0047] like Figure 5 As shown, the module bracket 3 adopts a bracket 300, and the first fixing plate 100 and the second fixing plate 215 are fixed to the bracket 300, so that the solid phase extraction column sample passing structure 1, the sample tube heating and moving structure 2, and the module bracket 3 become a whole with a small volume.

[0048] In this embodiment, the solid phase extraction column placement seat 108 can move up and down along the vertical rod 106 and be limited by the lever and the vertical rod stopper 115. The solid phase extraction column placement seat 108 is also provided with a positioning pin so that it can rotate and be limited by the plunger pin 112 and the plunger pin baffle 113. The sample liquid and related reagents are switched through the eight-way valve 102 of the solid phase extraction column sample structure through the nozzle 104 to enter different solid phase extraction columns 109 for activation, loading, cleaning and elution. The waste liquid generated in the process flows into the waste liquid tank 202 of the sample tube heating and moving structure 2 through the solid phase extraction column 109 and is discharged. At this time, the sample tube heating and moving structure 2 moves to the waste liquid position through the module 214, and the processed sample liquid flows into the sample tube 201 in the sample tube heating mobile structure 2. At this time, the sample tube heating mobile structure 2 moves to the sample position through the module 214. At this time, the sample tube heating mobile structure 2 heats the sample tube placement seat 203 through the heating film 204 and conducts it to the sample tube 201. At the same time, it moves to the nitrogen blowing position through the module 214. After the nitrogen blowing and detection are completed, the sample tube heating mobile structure 2 returns to the original position of the sensor 210 through the module 214. The structure also has a module bracket 3, so that the solid phase extraction column sample passing structure 1 and the sample tube heating mobile structure 2 become a whole.

[0049] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A multi-channel solid phase extraction column sample processing structure, characterized in that: It comprises a solid phase extraction column sample passing structure (1) and a sample tube heating and moving structure (2); The solid phase extraction column sample passing structure (1) is provided with a sample loading portion, a plurality of solid phase extraction columns (109), and a mounting portion for mounting the plurality of solid phase extraction columns (109); the sample loading portion is a multi-channel structure corresponding to the plurality of solid phase extraction columns (109); the mounting portion is a lifting structure and a rotating structure so that the plurality of solid phase extraction columns (109) can be lifted or rotated at a certain angle; The sample tube heating and moving structure (2) is placed below the solid phase extraction column sample passing structure (1) to receive sample liquid, receive waste liquid, and heat sample liquid.

2. A multi-channel solid phase extraction column sample processing structure according to claim 1, characterized in that: The sample loading part comprises a first fixed plate (100), a multi-way valve mounting plate (101) fixed to the first fixed plate (100), and a multi-way valve (102) mounted in the multi-way valve mounting plate (101); the multi-way valve (102) is provided with an inlet connector (103) and a plurality of nozzles (104), and the plurality of nozzles (104) correspond to the plurality of solid phase extraction columns (109).

3. A multi-channel solid phase extraction column sample processing structure according to claim 2, characterized in that: The mounting portion comprises a placement seat (108), a mounting plate (107), and a vertical rod (106); the placement seat (108) is used to mount the plurality of solid phase extraction columns (109); the placement seat (108) is hingedly mounted on the mounting plate (107) so that the placement seat (108) can rotate, and the mounting plate (107) is slidably connected to the vertical rod (106) so that the placement seat (108) can be raised and lowered.

4. A multi-channel solid phase extraction column sample processing structure according to claim 3, characterized in that: A vertical rod stopper (115) is fixed to the bottom end of the vertical rod (106) for limiting the minimum height of the placement seat (108), and a top end of the vertical rod (106) is fixed to the multi-way valve mounting plate (101) for limiting the maximum height of the placement seat (108).

5. A multi-channel solid phase extraction column sample processing structure according to claim 4, characterized in that: A plunger pin (112) is installed on the inner side of the mounting plate (107), and a plunger pin baffle (113) is provided on the side of the placement seat (108). The plunger pin baffle (113) is provided with a U-shaped groove, and the plunger pin (112) moves in the U-shaped groove to limit the rotation angle of the placement seat (108).

6. A multi-channel solid phase extraction column sample processing structure according to claim 5, characterized in that: The first fixing plate (100) is provided with a positioning pin (116) for keeping the mounting plate (107) at a constant maximum height.

7. A multi-channel solid phase extraction column sample processing structure according to claim 6, characterized in that: The first fixing plate (100) is provided with a first shifting rod (117), a second shifting rod (122), and a fixing seat (121); a connecting rod (118) is passed through the fixing seat (121); the first shifting rod (117) and the second shifting rod (122) respectively fix two ends of the connecting rod (118); the first shifting rod (117) and the second shifting rod (122) respectively pass through the first fixing plate (100) and are fixedly connected to the placement seat (108).

8. A multi-channel solid phase extraction column sample processing structure according to claim 7, characterized in that: The connecting rod (118) is fixed with a retaining ring (120), and a return spring (119) is arranged between the fixing seat (121) and the retaining ring (120).

9. The multi-channel solid phase extraction column sample processing structure according to claim 1, characterized in that: The sample tube heating and moving structure (2) comprises a sample tube (201), a waste liquid tank (202), a sample tube placement seat (203), a heating film (204), a temperature sensor (205), a waste liquid pipe joint (206), and a waste liquid tank side plate (207); the waste liquid tank (202) is arranged on one side of the sample tube placement seat (203), the sample tube (201) is arranged on the sample tube placement seat (203), the waste liquid tank (202) is provided with the waste liquid pipe joint (206) and the waste liquid tank side plate (207); the sample tube placement seat (203) is provided with the heating film (204) and the temperature sensor (205); and a module (214) is also included which is connected to the sample tube placement seat (203).

10. The multi-channel solid phase extraction column sample processing structure according to claim 1, characterized in that: It also includes a module bracket (3) for fixing and installing the solid phase extraction column sample passing structure (1) and the sample tube heating and moving structure (2).

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