Reagent storage device

Abstract

The utility model relates to the technical field of reagent storage, and discloses a reagent storage device, which comprises a base, a liquid outlet channel, a liquid inlet channel and a liquid outlet channel, the container is fixedly connected with the base and is communicated with an inlet of the liquid outlet channel of the base; the second valve is fixedly connected with the base and is provided with a first inlet communicated with an outlet of the liquid outlet channel of the base, a second inlet communicated with the cleaning liquid pipe and a second valve outlet communicated with the spray head; the second valve has a first state in which the first inlet is communicated with the second valve outlet and a second state in which the second inlet is communicated with the second valve outlet. According to the reagent storage device provided by the utility model, the container and the second valve are arranged on the base, and switching between reagent supply for the spray head and cleaning for the spray head is realized by switching the communication state of the pipeline in the second valve, so that the overall sealing performance of the device is improved, and the service life of the device is prolonged. The reagent is prevented from leaking to the instrument and being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of reagent storage, in particular to a reagent storage device. Background Art

[0002] The inkjet chip synthesizer currently in use requires the use of a nozzle to spray monomer reagents or activator reagents, so a reagent storage device is required to provide the monomer reagents or activator reagents to the nozzle. The existing reagent storage device is connected to the nozzle through a connecting pipe. When cleaning the nozzle, the connecting pipe needs to be disconnected, so that the reagent is likely to leak onto the instrument at the disconnection point of the pipe, causing damage to the instrument. Utility Model Content

[0003] In view of this, the utility model provides a reagent storage device to solve the problem of solvent leakage caused by disconnecting the connecting pipeline when cleaning the nozzle.

[0004] The utility model provides a reagent storage device, comprising:

[0005] A base having a liquid outlet channel;

[0006] The container is fixedly connected to the base and communicates with the inlet of the liquid outlet channel of the base;

[0007] a second valve fixedly connected to the base, the second valve having a first inlet, a second inlet, and a second valve outlet, the first inlet being connected to the outlet of the liquid outlet channel of the base, the second inlet being adapted to be connected to the cleaning liquid pipe, and the second valve outlet being adapted to be connected to the nozzle;

[0008] The second valve has a first state in which the first inlet is connected to the second valve outlet, and a second state in which the second inlet is connected to the second valve outlet.

[0009] Beneficial effect: The container and the second valve are arranged on the base, and the second valve has a first state in which the first inlet is connected to the second valve outlet, so as to provide reagents to the nozzle, and the second valve has a second state in which the second inlet is connected to the second valve outlet, so as to clean the nozzle. By switching the connection state of the internal pipeline of the second valve, it is possible to switch between providing reagents to the nozzle and cleaning the nozzle, which is beneficial to improve the overall sealing of the device and prevent the reagent from leaking onto the instrument and causing damage to the reagent.

[0010] In an optional embodiment, the reagent storage device further includes a cover body, which is wrapped around the outside of the container and fixedly connected to the base, and the cover body is suitable for pressing the container against the base.

[0011] In an optional embodiment, at least a portion of the side wall of the container is a light-transmitting area, and a hollow groove is partially opened on the side wall of the cover corresponding to the light-transmitting area.

[0012] Beneficial effect: A light-transmitting area is provided on the side wall of the container, and a hollow groove is provided on the side wall of the cover body corresponding to the light-transmitting area, so that the user can observe the dosage of the reagent in the container through the hollow groove.

[0013] In an optional embodiment, an air pipe connector is fixedly connected to the cover body, one end of the air pipe connector is connected to the upper part of the container along the gravity direction, and the other end is suitable for connecting to the air pressure controller.

[0014] Beneficial effect: An air pipe joint communicating with the interior of the container is provided on the cover body, and the air pipe joint is connected to an air pressure controller so as to facilitate regulation of the air pressure in the container.

[0015] In an optional embodiment, the base further has a liquid inlet channel, and the outlet of the liquid inlet channel is connected to the container; the reagent storage device also includes a first valve fixedly connected to the base, the first valve having a first valve outlet and a first valve inlet, the first valve outlet is connected to the inlet of the liquid inlet channel of the base, so as to be suitable for filling the reagent into the container; the first valve has a third state in which the first valve inlet and the first valve outlet are connected, and a fourth state in which the first valve inlet and the first valve outlet are separated.

[0016] Beneficial effects: By setting the first valve on the base and switching the first valve to the third state to facilitate filling the reagent into the container, after the filling is completed, the first valve is switched to the fourth state to stop filling the reagent into the container, thereby reducing redundant pipelines, making the device simple and easy to operate when filling the reagent, and helping to avoid reagent leakage.

[0017] In an optional embodiment, the first end face of the container close to the base has a first opening, the first end face abuts the base, and the container is suitable for being connected to the liquid inlet channel outlet and the liquid outlet channel inlet through the first opening; the second end face of the container close to the trachea connector has a second opening, the second end face abuts the inner wall of the cover, and the container is suitable for being connected to the trachea connector through the second opening.

[0018] In an optional embodiment, a first sealing ring is tightly pressed between the first end surface and the base; and a second sealing ring is tightly pressed between the second end surface and the inner wall of the cover.

[0019] Beneficial effects: By arranging a first sealing ring between the first end face and the base, it is helpful to improve the sealing between the container and the base at the first opening; by arranging a second sealing ring between the second end face and the inner wall of the cover, it is helpful to improve the sealing between the container and the inner wall of the cover at the second opening, thereby preventing the reagent in the container from leaking, and helping to improve the reliability of the reagent storage device.

[0020] In an optional embodiment, a convex wall is fixedly connected to the end surface of the base corresponding to the cover body, the convex wall is suitable for wrapping around the outside of the container, and the cover body and the convex wall are detachably connected.

[0021] Beneficial effect: The cover body is detachably connected to the convex wall, so that the container can be replaced or cleaned when the cover body is removed.

[0022] In an optional embodiment, the outer wall of the convex wall is provided with an external thread, and the inner wall of the cover is provided with an internal thread, and the external thread matches the internal thread.

[0023] Beneficial effect: Through the cooperation of internal and external threads, the position of the cover plate relative to the convex wall can be changed, so that containers of different specifications can be pressed against the base, which is beneficial to improving the applicability of the reagent storage device.

[0024] In an optional embodiment, the container is a circular tube with openings at both ends, the convex wall is an annular wall, and the inner diameter of the annular wall is adapted to the outer diameter of the circular tube.

[0025] Beneficial effect: By adapting the inner diameter of the annular wall to the outer diameter of the circular tube, the annular wall can limit the circular tube in the radial direction of the circular tube, thereby facilitating improving the overall stability of the reagent storage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a three-dimensional schematic diagram of the reagent storage device of the present invention;

[0028] Figure 2 This is an exploded schematic diagram of the reagent storage device of the present invention;

[0029] Figure 3 This is a schematic diagram of the assembly of the base and the convex wall of the utility model;

[0030] Figure 4 This is a three-dimensional schematic diagram of the second valve of the utility model;

[0031] Figure 5 This is a three-dimensional schematic diagram of the first valve of the utility model;

[0032] Figure 6 It is a three-dimensional schematic diagram of the container of the utility model.

[0033] Description of reference numerals:

[0034] 1. Base; 11. Liquid inlet channel inlet; 12. Liquid inlet channel outlet; 13. Liquid outlet channel inlet; 14. Liquid outlet channel outlet; 15. Threaded hole; 2. Cover; 21. Hollow groove; 3. Container; 31. First end face; 32. Second end face; 4. First valve; 41. First valve inlet; 42. First valve outlet; 43. First plate rod; 5. Second valve; 51. First inlet; 52. Second inlet; 53. Second valve outlet; 54. Second plate rod; 6. Trachea joint; 71. First sealing ring; 72. Second sealing ring; 8. Convex wall; 9. Through hole. DETAILED DESCRIPTION

[0035] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0038] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] The following combination Figures 1 to 6 , describing the embodiments of the present utility model.

[0040] According to an embodiment of the present invention, a reagent storage device is provided, which is used to provide reagents to the nozzle of an inkjet chip synthesizer as an example, including:

[0041] Base 1, having a liquid outlet channel;

[0042] The container 3 is fixedly connected to the base 1 and communicates with the liquid outlet inlet 13 of the base 1;

[0043] The second valve 5 is fixedly connected to the base 1 and has a first inlet 51, a second inlet 52, and a second valve outlet 53. The first inlet 51 is connected to the liquid outlet 14 of the base 1, the second inlet 52 is adapted to be connected to the cleaning liquid pipe, and the second valve outlet 53 is adapted to be connected to the nozzle.

[0044] The second valve 5 has a first state in which the first inlet 51 is connected to the second valve outlet 53 , and a second state in which the second inlet 52 is connected to the second valve outlet 53 .

[0045] The reagent storage device provided in this embodiment has a container 3 and a second valve 5 disposed on a base 1, and has the second valve 5 in a first state in which the first inlet 51 is connected to the second valve outlet 53 to facilitate supplying reagent to the nozzle, and in a second state in which the second inlet 52 is connected to the second valve outlet 53 to facilitate cleaning of the nozzle. By switching the connection state of the internal pipeline of the second valve 5, switching between supplying reagent to the nozzle and cleaning the nozzle can be achieved, which is beneficial to improving the overall sealing of the device and preventing the reagent from leaking into the instrument and causing damage to the reagent.

[0046] Specifically, the base 1 has a liquid outlet channel formed within it, with a liquid outlet channel inlet 13 and a liquid outlet channel outlet 14 formed on the end surface of the base 1. The container 3 has a cavity within it suitable for accommodating reagents, such as monomer reagents or activator reagents. The number of reagent storage devices is determined based on actual needs, and each container 3 is suitable for accommodating different types of reagents. The container 3 is fixedly connected to the end surface of the base 1 having the liquid outlet channel inlet 13, so that the internal cavity of the container 3 is connected to the liquid outlet channel inlet 13.

[0047] As a preferred embodiment, the liquid outlet channel inlet 13 and the liquid outlet channel outlet 14 are opened on different end surfaces of the base 1, and the second valve 5 is fixedly connected to the end surface of the base 1 having the liquid outlet channel outlet 14, so that the first inlet 51 of the second valve 5 is connected to the liquid outlet channel outlet 14. A connecting pipeline is connected between the second valve 5 and the nozzle, one end of the connecting pipeline is connected to the second valve outlet 53 of the second valve 5, and the other end of the connecting pipeline is connected to the nozzle. When the second valve 5 is in a first state, the first inlet 51 is connected to the second valve outlet 53, and the reagent inside the container 3 is suitable for flowing to the nozzle through the liquid outlet channel, the second valve 5 and the connecting pipeline. At this time, the container 3 is suitable for providing the reagent to the nozzle through the second valve 5; when the second valve 5 is in a second state, the second inlet 52 is connected to the second valve outlet 53, and the cleaning liquid inside the cleaning liquid pipe is suitable for flowing to the nozzle through the second valve 5 and the connecting pipeline. At this time, the cleaning liquid pipe is suitable for cleaning the nozzle and the connecting pipeline through the second valve 5; the second valve 5 also has a fifth state in which the first inlet 51, the second inlet 52 and the second valve outlet 53 are all isolated from each other. At this time, the second valve 5 neither provides the reagent to the nozzle nor cleans the nozzle and the connecting pipeline.

[0048] At least one through-hole 9 is provided through the second valve 5. A threaded hole 15 is provided on the base 1 at a position corresponding to the through-hole 9 of the second valve 5. A bolt passes through the through-hole 9 and screws into the threaded hole 15, thereby securing the second valve 5 to the base 1. A second plate 54 is also provided on the outer wall of the second valve 5. The second plate 54 is connected to the valve core within the second valve 5. Rotating the second plate 54 changes the direction of the valve core within the second valve 5, thereby switching the second valve 5 between the first, second, and third states. By placing the second valve 5 on the base 1, piping is reduced, reagent waste is minimized, and the overall reagent storage device is more streamlined and aesthetically pleasing. Simply rotating the second plate 54 to switch the second valve 5 between the first and second states facilitates switching between supplying reagent to the spray head and cleaning the spray head and connecting piping, facilitating operation and improving the overall sealing of the reagent storage device. This avoids the need to disconnect the connecting piping and spray head when cleaning, which can easily lead to reagent leakage into the instrument and damage the instrument.

[0049] In some embodiments, combined Figures 1 to 6 As shown, the reagent storage device further includes a cover 2 , which is wrapped around the outside of the container 3 and fixedly connected to the base 1 . The cover 2 is suitable for pressing the container 3 against the base 1 .

[0050] Specifically, a cavity is formed between the cover body 2 and the base 1, and the container 3 is located in the cavity. The end of the container 3 close to the base 1 abuts against the outer wall of the base 1, and the other end of the container 3 away from the base 1 abuts against the inner wall of the cover body 2. The cover body 2 is fixedly connected to the base 1, so that the container 3 inside it is pressed against the base 1, thereby forming a fixed connection between the container 3 and the base 1.

[0051] In some embodiments, combined Figures 1 to 6 As shown, at least a portion of the side wall of the container 3 is a light-transmitting area, and a hollow groove 21 is partially opened on the side wall of the cover body 2 corresponding to the light-transmitting area.

[0052] The reagent storage device provided in this embodiment has a light-transmitting area on the side wall of the container 3 , and a hollow groove 21 is provided on the side wall of the cover 2 corresponding to the light-transmitting area, so that the user can observe the reagent dosage in the container 3 through the hollow groove 21 .

[0053] Preferably, the container 3 is a transparent glass container, and at least one hollow groove 21 is formed on the side wall of the lid 2. The hollow groove 21 extends in the direction of gravity, and the length of the hollow groove 21 along its extension direction is adapted to the height of the container 3, so that the operator can observe the liquid level of the reagent in the container 3 through the hollow groove 21, thereby intuitively knowing the dosage of the reagent in the container 3. Alternatively, the container 3 can also be a transparent plastic container.

[0054] In some embodiments, combined Figures 1 to 6 As shown, an air pipe connector 6 is fixedly connected to the cover body 2, one end of the air pipe connector 6 is connected to the upper part of the container 3 along the gravity direction, and the other end is suitable for connecting to the air pressure controller.

[0055] The reagent storage device provided in this embodiment is provided with an air pipe joint 6 on the cover body 2 that is in communication with the interior of the container 3 , and is connected to an air pressure controller via the air pipe joint 6 to facilitate regulating the air pressure in the container 3 .

[0056] Specifically, an air pipe connector 6 is fixedly connected to the upper portion of the cover body 2 along the direction of gravity. One end of the air pipe connector 6 extends into the interior of the cover body 2 and is connected to the interior of the container 3, and the other end is exposed outside the cover body so as to be connected to the air pressure controller through an air pipe. The air pressure in the container 3 is adjusted by the air pressure controller to balance the air pressure inside and outside the container 3, thereby ensuring that the reagent in the container 3 flows smoothly into the second valve 5; the air pressure in the container 3 is regulated by the air pressure controller so that when the reagent in the container 3 enters the connecting pipeline and the nozzle through the second valve 5 under the action of the upper gas pressure, the flow rate of the reagent is regulated. The greater the air pressure in the container 3, the faster the reagent in the container 3 flows into the second valve 5; the lower the air pressure in the container 3, the slower the reagent in the container 3 flows into the second valve 5.

[0057] In some embodiments, combined Figures 1 to 6 As shown, the base 1 also has a liquid inlet channel, and the liquid inlet channel outlet 12 is connected to the container 3; the reagent storage device also includes a first valve 4 fixedly connected to the base 1, the first valve 4 has a first valve outlet 42 and a first valve inlet 41, and the first valve outlet 42 is connected to the liquid inlet channel inlet 11 of the base 1, so as to be suitable for filling the container 3 with the reagent; the first valve 4 has a third state in which the first valve inlet 41 and the first valve outlet 42 are connected, and a fourth state in which the first valve inlet 41 and the first valve outlet 42 are separated.

[0058] The reagent storage device provided in this embodiment arranges the first valve 4 on the base 1 and switches the first valve 4 to the third state to facilitate filling the reagent into the container 3. After the filling is completed, the first valve 4 is switched to the fourth state to stop filling the reagent into the container 3, thereby reducing redundant piping. The device is simple and easy to operate when filling the reagent, which helps to avoid the phenomenon of reagent leakage.

[0059] Specifically, the base 1 further defines a liquid inlet channel. The liquid inlet channel includes an inlet inlet 11 and an outlet 12 formed on the end surface of the base 1. The inlet outlet 12 and the outlet inlet 13 are located on the same end surface of the base 1, allowing the container 3 to communicate with both the inlet outlet 12 and the outlet inlet 13. The first valve 4 also has at least one through-hole 9 extending therethrough. A threaded hole 15 is provided on the base 1 at a position corresponding to the through-hole 9 of the first valve 4. A bolt passes through the through-hole 9 and screws into the threaded hole 15, thereby securing the first valve 4 to the base 1. The first valve inlet 41 communicates with the liquid adding tube. When the first valve 4 is in the third state, the first valve outlet 42 communicates with the first valve inlet 41. The liquid adding tube now communicates with the interior of the container 3 through the first valve 4 and the liquid inlet channel, facilitating reagent filling into the container 3. When the first valve is in the fourth state, the first valve outlet 42 communicates with the first valve inlet 41. The liquid adding tube is now isolated from the interior of the container 3, preventing liquid from being added to the container 3. A first lever 43 is provided on the side wall of the first valve 4. The first lever 43 is connected to the valve core within the first valve 4. Rotating the first lever 43 changes the direction of the valve core within the first valve 4, thereby switching the first valve inlet 41 and the first valve outlet 42 between connected and blocked positions. Simply rotating the first lever 43 switches the first valve 4 between the third and fourth positions, facilitating reagent filling into the container 3 and preventing reagent leakage. Furthermore, the need for a reagent filling line connected to the liquid filling tube and in communication with the container 3 is eliminated, reducing the number of lines and resulting in a more streamlined and aesthetically pleasing overall structure.

[0060] In some embodiments, combined Figures 1 to 6As shown, the first end face 31 of the container 3 close to the base 1 has a first opening, the first end face 31 abuts against the base 1, and the container 3 is suitable for being connected to the liquid inlet channel outlet 12 and the liquid outlet channel inlet 13 through the first opening; the second end face 32 of the container 3 close to the trachea connector 6 has a second opening, the second end face 32 abuts against the inner wall of the cover body 2, and the container 3 is suitable for being connected to the trachea connector 6 through the second opening.

[0061] In some embodiments, combined Figures 1 to 6 As shown, a first sealing ring 71 is tightly pressed between the first end surface 31 and the base 1 ; a second sealing ring 72 is tightly pressed between the second end surface 32 and the inner wall of the cover body 2 .

[0062] The reagent storage device provided in this embodiment is conducive to improving the sealing between the container 3 and the base 1 at the first opening by arranging a first sealing ring 71 between the first end face 31 and the base 1; and is conducive to improving the sealing between the container 3 and the inner wall of the cover body 2 at the second opening by arranging a second sealing ring 72 between the second end face 32 and the inner wall of the cover body 2, thereby preventing the leakage of the reagent in the container 3 and improving the reliability of the reagent storage device.

[0063] Preferably, along the direction perpendicular to the first end face 31 , the projection of the first end face 31 matches the projection of the first sealing ring 71 ; along the direction perpendicular to the second end face 32 , the projection of the second end face 32 matches the projection of the second sealing ring 72 .

[0064] In some embodiments, combined Figures 1 to 6 As shown, the base 1 is fixedly connected to the end surface of the cover 2 with a convex wall 8, which is suitable for wrapping around the outside of the container 3. The cover 2 and the convex wall 8 are detachably connected.

[0065] The reagent storage device provided in this embodiment is detachably connected to the convex wall 8 via the cover 2, so that the container 3 can be replaced or cleaned when the cover 2 is removed.

[0066] Specifically, the convex wall 8 can be fixedly connected to the base 1 by bolts, or can be formed by protruding from a local area of the end surface of the base 1 near the container 3. The detachable connection between the cover 2 and the convex wall 8 can be a bolt connection or a threaded connection. When the cover 2 and the convex wall 8 are fixedly connected, the cover 2 is suitable for pressing the container against the base 1; when the cover 2 is removed from the convex wall 8, the container 3 can be replaced or cleaned.

[0067] In some embodiments, combined Figures 1 to 6 As shown, the outer wall of the convex wall 8 is provided with an external thread, and the inner wall of the cover body 2 is provided with an internal thread, and the external thread and the internal thread match each other.

[0068] The reagent storage device provided in this embodiment has a variable position of the cover 2 relative to the convex wall 8 through the cooperation of internal and external threads, so that containers 3 of different specifications can be pressed against the base 1, which is beneficial to improving the applicability of the reagent storage device.

[0069] As a preferred embodiment, the outer wall of the convex wall 8 and the inner wall of the cover body 2 are both circumferential walls, the cover body 2 is sleeved on the outside of the convex wall 8, and the corresponding positions of the cover body 2 and the convex wall 8 are respectively provided with internal threads and external threads. The distance between the internal thread of the inner wall of the cover body 2 and the external thread relative to the outer wall of the convex wall 8 is adjustable, so as to adjust the distance between the top inner wall of the cover body 2 and the end face of the base 1 fixedly connected to the convex wall 8, so that containers 3 of different specifications can be pressed against the base 1, and thus it is suitable for containers 3 of different specifications, which is conducive to improving the applicability of the reagent storage device.

[0070] As an additional embodiment, the inner wall of the convex wall 8 and the outer wall of the cover body 2 are both circumferential walls. The convex wall 8 is sleeved on the outside of the cover body 2, and an internal thread is provided on the inner wall of the convex wall 8. An external thread matching the internal thread of the convex wall 8 is provided on the area of the outer wall of the cover body 2 corresponding to the convex wall 8. The distance between the external thread of the outer wall of the cover body 2 and the internal thread relative to the inner wall of the convex wall 8 is adjustable to facilitate the adjustment of the distance between the inner wall of the top of the cover body 2 and the end face of the base 1 to which the convex wall 8 is fixedly connected, so that containers 3 of different specifications can be pressed tightly against the base 1.

[0071] As another additional embodiment, a plurality of threaded holes are provided on the convex wall 8, and the plurality of threaded holes are spaced apart along the height direction of the convex wall 8. A through hole is opened on the side wall of the cover body 2, and bolts pass through the through hole and are screwed into the threaded hole, so that the cover body 2 and the convex wall 8 form a detachable connection. By screwing the bolts into the threaded holes at different heights to adapt to changing the spacing between the top inner wall of the cover body 2 and the end face of the base 1 to which the convex wall 8 is fixedly connected, containers 3 of different specifications can be pressed against the base 1.

[0072] In some embodiments, combined Figures 1 to 6 As shown, the container 3 is a circular tube with two ends open, and the convex wall 8 is an annular wall, the inner diameter of the annular wall is adapted to the outer diameter of the circular tube.

[0073] The reagent storage device provided in this embodiment has an inner diameter of the annular wall adapted to the outer diameter of the circular tube, so that the annular wall limits the circular tube in the radial direction of the circular tube, thereby improving the overall stability of the reagent storage device.

[0074] Specifically, the inner diameter of the annular wall is adapted to the outer diameter of the circular tube, and the inner wall of the annular wall abuts against the outer wall of the circular tube, so that the annular wall forms a limit for the circular tube in the radial direction of the circular tube, preventing the circular tube from shifting in its radial direction, which is beneficial to improving the overall stability and sealing of the reagent storage device. In addition, the container 3 can also be a tubular container with openings at both ends and a polygonal cross-section, or a special-shaped container with openings at both ends and curved sidewalls. In the height direction perpendicular to the container 3, the inner wall size of the convex wall 8 is adapted to the maximum size of the outer wall of the container 3.

[0075] Obviously, the above embodiments are merely examples for the purpose of clarity of explanation and are not intended to limit the implementation methods. Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the present invention.

Claims

1. A reagent storage device, characterized in that: include: A base (1) having a liquid outlet channel; A container (3) is fixedly connected to the base (1) and communicates with the liquid outlet channel inlet (13) of the base (1); a second valve (5) fixedly connected to the base (1), the second valve (5) comprising a first inlet (51), a second inlet (52) and a second valve outlet (53), the first inlet (51) being in communication with the outlet (14) of the liquid outlet channel of the base (1), the second inlet (52) being adapted to be in communication with a cleaning liquid pipe, and the second valve outlet (53) being adapted to be in communication with the nozzle; The second valve (5) has a first state in which the first inlet (51) is connected to the second valve outlet (53), and a second state in which the second inlet (52) is connected to the second valve outlet (53).

2. The reagent storage device according to claim 1, characterized in that The reagent storage device further comprises a cover (2), which is wrapped around the outside of the container (3) and fixedly connected to the base (1). The cover (2) is suitable for pressing the container (3) against the base (1).

3. The reagent storage device according to claim 2, characterized in that At least a portion of the side wall of the container (3) is a light-transmitting area, and a hollow groove (21) is partially opened on the side wall of the cover (2) corresponding to the light-transmitting area.

4. The reagent storage device according to claim 2, characterized in that An air pipe joint (6) is fixedly connected to the cover body (2), one end of the air pipe joint (6) is connected to the upper part of the container (3) along the gravity direction, and the other end is suitable for connecting to the air pressure controller.

5. The reagent storage device according to claim 4, characterized in that The base (1) further comprises a liquid inlet channel, the liquid inlet channel outlet (12) being connected to the container (3); the reagent storage device further comprises a first valve (4) fixedly connected to the base (1), the first valve (4) comprising a first valve outlet (42) and a first valve inlet (41), the first valve outlet (42) being connected to the liquid inlet channel inlet (11) of the base (1) so as to be suitable for filling the container (3) with reagent; the first valve (4) having a third state in which the first valve inlet (41) and the first valve outlet (42) are connected, and a fourth state in which the first valve inlet (41) and the first valve outlet (42) are separated.

6. The reagent storage device according to claim 5, characterized in that The container (3) has a first opening on a first end face (31) close to the base (1), the first end face (31) abuts against the base (1), and the container (3) is suitable for being connected to the liquid inlet channel outlet (12) and the liquid outlet channel inlet (13) through the first opening; the container (3) has a second opening on a second end face (32) close to the air pipe joint (6), the second end face (32) abuts against the inner wall of the cover body (2), and the container (3) is suitable for being connected to the air pipe joint (6) through the second opening.

7. The reagent storage device according to claim 6, characterized in that A first sealing ring (71) is tightly pressed between the first end surface (31) and the base (1); and a second sealing ring (72) is tightly pressed between the second end surface (32) and the inner wall of the cover body (2).

8. The reagent storage device according to any one of claims 2 to 7, characterized in that: The base (1) is fixedly connected to a convex wall (8) corresponding to the end surface of the cover (2); the convex wall (8) is suitable for wrapping around the outside of the container (3); and the cover (2) and the convex wall (8) are detachably connected.

9. The reagent storage device according to claim 8, characterized in that The outer wall of the convex wall (8) is provided with an external thread, and the inner wall of the cover body (2) is provided with an internal thread, and the external thread matches the internal thread.

10. The reagent storage device according to claim 9, characterized in that The container (3) is a circular tube with openings at both ends, and the convex wall (8) is an annular wall, the inner diameter of which is adapted to the outer diameter of the circular tube.

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