A liquid chromatograph reservoir

Abstract

This utility model relates to the field of liquid chromatography technology, specifically a liquid chromatograph reservoir, comprising a chromatograph body, a shield, and a guiding mechanism. The shield is fitted onto the upper end of the outer wall of the chromatograph body. Cover plates are provided on both sides of the upper outer wall of the shield. Guide rods arranged in a rectangular array are screwed to the lower outer wall of the shield. Sleeves are screwed to both outer walls of the shield, and connecting plates are connected to the sleeves via pins. First slots are provided on the upper ends of both outer walls of the chromatograph body. A guiding mechanism is provided on both sides of the upper outer wall of the chromatograph body. The guiding mechanism consists of a lifting plate, a roller, and a second slot. This design prevents accidental contact with the reservoir bottle inside the storage tube during operation of the chromatograph body, ensuring the stability of the reservoir bottle's placement and improving its safety.

Description

Technical Field

[0001] This utility model relates to the field of liquid chromatography technology, specifically to a liquid chromatograph reservoir. Background Technology

[0002] A liquid chromatograph is an instrument that uses the difference in the partition ratio of a mixture between a liquid and a solid or two immiscible liquids to separate the mixture before analysis and identification. The mobile phase in the reservoir is pumped into the system by a high-pressure pump. The sample solution enters the mobile phase through the injector and is carried into the chromatographic column (stationary phase). Because the components in the sample solution have different partition coefficients in the two phases, they undergo repeated adsorption-desorption partitioning processes during relative motion between the two phases. As a result, the components are separated into individual components that flow out of the column sequentially. When they pass through the detector, the sample concentration is converted into an electrical signal and transmitted to the recorder. The data is printed out in the form of a chromatogram. The reservoir mainly serves to fix the reservoir bottle and allows the medium inside the reservoir bottle to be pumped by the high-pressure pump through a conduit.

[0003] CN218099033U discloses a liquid storage device for a liquid chromatograph, including a chromatograph body. A shelf is mounted on the top of the chromatograph body, and the shelf is hollow inside for storing liquid storage bottles. Both sides of the shelf's interior have mating grooves, and positioning columns are fixedly installed inside the grooves. In this invention, a separating arc plate is provided, which is inserted between two adjacent liquid storage bottles. Because anti-slip layers are provided on both outer sides of the separating arc plate, the friction between the separating arc plate and the bottle body increases after insertion. After adjusting the position of the separating arc plate, the positioning bolt is rotated further to tighten the lower end of the positioning bolt against the inner bottom surface of the adjustment cavity, thus fixing the position of the separating arc plate. The freely adjustable separating arc plate further improves the fixing effect of the liquid storage bottles and enhances their stability after fixing.

[0004] While the existing technology CN218099033U has many advantages in use, it still has the following problems: its protection of the liquid storage bottle is not perfect. Although the liquid storage bottle is fixed, it is still exposed to the environment. During operation, the staff may cause collisions to the liquid storage bottle, which affects the safety of the liquid storage bottle. Utility Model Content

[0005] To address the problems in the existing technology, this utility model provides a liquid storage device for a liquid chromatograph.

[0006] The technical solution adopted by this utility model to solve its technical problem is a liquid chromatograph reservoir, including a chromatograph body, a shield, and a guiding mechanism. The shield is fitted on the upper end of the outer wall of the chromatograph body. Cover plates are provided on both sides of the upper outer wall of the shield. Guide rods distributed in a rectangular array are screwed to the lower outer wall of the shield. Sleeves are screwed to both outer walls of the shield. A connecting plate is connected to the sleeve by a pin inside the sleeve. A first slot is opened on the upper end of both outer walls of the chromatograph body. A guiding mechanism is provided on both sides of the upper outer wall of the chromatograph body. The guiding mechanism consists of a lifting plate, a roller, and a second slot.

[0007] By adopting the above technical solution, the shield and cover can cover the storage tank, thereby preventing staff from accidentally touching the liquid storage bottle inside the storage tube when operating the chromatograph. This ensures the stability of the liquid storage bottle's placement and improves the safety of its use. Furthermore, the shield can move vertically guided by the guide rod, ensuring controlled exposure of the storage tank. After the shield moves down, the cover simultaneously loses its cover over the storage tank, making it convenient for staff to replace or adjust the liquid storage bottle and meeting the requirements for ease of use of the equipment.

[0008] Specifically, a sealing gasket for providing a seal is bonded and fixed to the upper end of the outer wall of the chromatograph body, and the outer wall of the sealing gasket is in contact with the inner wall of the shield.

[0009] By adopting the above technical solution, the sealing gasket ensures the airtightness between the shield and the chromatograph body, thereby reducing the probability of foreign objects entering the storage tank area, achieving further protection for the liquid storage bottle, maintaining the stability of the internal medium of the liquid storage bottle, and ensuring the accuracy of the detection results of the chromatograph body.

[0010] Specifically, the outer wall of the chromatograph body is screwed with a rectangular array of limiting rings. The limiting rings have movable holes for guidance inside. The diameter of the guide rod is smaller than the inner diameter of the movable hole, and the guide rod is located inside the movable hole.

[0011] By adopting the above technical solution, the limiting ring and the movable hole provide precise guidance for the guide rod, enabling the shield to be accurately aligned during installation, and restricting the vertical movement trajectory of the shield located outside the chromatograph body, ensuring the stability and smoothness of the shield tube movement trajectory.

[0012] Specifically, the upper outer wall of the chromatograph body is provided with a storage groove, which is located between the guide mechanisms, and the inner wall of the storage groove is screwed with a rectangular array of storage tubes.

[0013] By adopting the above technical solution, the storage slot provides space for the placement of the storage tube, and the liquid storage bottle can be placed inside the storage tube for positioning, ensuring the stability of the placement position of the liquid storage bottle.

[0014] Specifically, the lifting plate screw is connected to the upper outer wall of the chromatograph body, the roller pin is connected to the upper outer wall of the lifting plate, and the roller is in contact with the lower outer wall of the cover plate. The second slot is opened on the outer wall of the lifting plate.

[0015] By adopting the above technical solution, the combination of the lifting plate and the roller can guide and support the opening and closing of the cover. When the shielding cover and the cover cover cover the storage slot, the torsional force of the spring hinge ensures that the relative position of the cover on the upper end of the shielding cover is stable, ensuring that the shielding cover and the cover cover continuously cover the storage slot area. When the staff manually lowers the shielding cover, because the position of the roller is stable, the cover will be blocked by the roller and rotate around the spring hinge until the cover rotates to be perpendicular to the upper end of the shielding cover, thereby removing the cover from the storage slot area, making it easier for the staff to put in or take out the liquid storage bottle inside the storage tube.

[0016] Specifically, both sides of the outer wall of the cover plate are screwed with spring hinges, and the other end of the spring hinge is screwed to the outer wall of the shield, and the cover plate is rotatably connected to the shield through the spring hinges.

[0017] By adopting the above technical solution, the spring hinge enables the cover to open and close flexibly, and can automatically reset after opening and closing to maintain the closed state of the shield.

[0018] Specifically, a first buckle and a second buckle are respectively installed on the outer walls of both sides of the connecting plate. The size of the first buckle is adapted to the size of the first slot, and the size of the second buckle is adapted to the size of the second slot. The first buckle is snapped into the inside of the first slot.

[0019] By adopting the above technical solution, when the shield is in the shielding state, the staff can insert the first buckle into the first slot to restrict the position of the shield and maintain the shielding function continuously. When the shield is lowered and in the unshielded state, the staff can insert the second buckle into the second slot to restrict the position of the shield again, keeping the storage compartment continuously exposed, which facilitates the staff to replace the liquid storage bottle. This achieves the differentiation and fixation of the shield in different working states.

[0020] The beneficial effects of this utility model are:

[0021] (1) The liquid chromatograph storage container of the present invention can block the storage tank, thereby preventing the staff from accidentally touching the storage bottle inside the storage tube when operating the chromatograph body, ensuring the stability of the storage bottle's placement position, and improving the safety of the storage bottle's use.

[0022] (2) The liquid storage container of the liquid chromatograph described in this utility model has a shield that can move vertically by a guide rod to ensure controlled exposure of the storage tank. After the shield moves down, the cover plate simultaneously loses its shielding of the storage tank, which makes it convenient for staff to replace or adjust the storage bottle and meets the convenience of equipment use. Attached Figure Description

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

[0024] Figure 1 This is a schematic diagram of the main structure of the chromatograph body of this utility model;

[0025] Figure 2 This is an exploded view of the chromatograph body structure of this utility model;

[0026] Figure 3 This is an enlarged schematic diagram of the guiding mechanism structure of this utility model;

[0027] Figure 4 This is an enlarged schematic diagram of the card sleeve structure of this utility model.

[0028] In the diagram: 1. Chromatograph body; 11. First slot; 12. Limiting ring; 13. Storage slot; 14. Storage tube; 15. Sealing gasket; 2. Shielding cover; 21. Cover plate; 22. Spring hinge; 23. Guide rod; 24. Sleeve; 25. Connecting plate; 26. First buckle; 27. Second buckle; 3. Guiding mechanism; 31. Lifting plate; 32. Roller; 33. Second slot. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0030] To save manpower and improve efficiency, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the liquid storage device for a liquid chromatograph according to this utility model includes a chromatograph body 1, a shield 2, and a guiding mechanism 3. The shield 2 is fitted on the upper end of the outer wall of the chromatograph body 1. Cover plates 21 are provided on both sides of the upper outer wall of the shield 2. Guide rods 23 distributed in a rectangular array are screwed to the lower outer wall of the shield 2. Sleeves 24 are screwed to both outer walls of the shield 2. Connecting plates 25 are connected to the sleeves 24 by pins inside. First slots 11 are provided on the upper ends of both outer walls of the chromatograph body 1. Guiding mechanisms 3 are provided on both sides of the upper outer wall of the chromatograph body 1. The guiding mechanism 3 is composed of a lifting plate 31, a roller 32, and a second slot 33.

[0031] In use, the shield 2 and cover 21 can shield the storage tank 13, thereby preventing the operator from accidentally touching the liquid storage bottle inside the storage tube 14 when operating the chromatograph body 1. This ensures the stability of the liquid storage bottle's placement position and improves the safety of the liquid storage bottle. The shield 2 can move vertically guided by the guide rod 23 to ensure controlled exposure of the storage tank 13. After the shield 2 moves down, the cover 21 simultaneously loses its shielding of the storage tank 13, making it convenient for the operator to replace or adjust the liquid storage bottle, thus meeting the convenience of equipment use.

[0032] For sealing, exemplarily, such as Figure 2 As shown, a sealing gasket 15 for providing a seal is bonded and fixed to the upper end of the outer wall of the chromatograph body 1, and the outer wall of the sealing gasket 15 is in contact with the inner wall of the shield 2.

[0033] During use, the sealing gasket 15 ensures the seal between the shield 2 and the chromatograph body 1, thereby reducing the probability of foreign objects entering the storage tank 13 area, achieving further protection of the storage bottle, maintaining the stability of the properties of the medium inside the storage bottle, and ensuring the accuracy of the detection results of the chromatograph body 1.

[0034] For guidance, exemplified, such as Figure 2 As shown, the outer wall of the chromatograph body 1 is screwed with a rectangular array of limiting rings 12. The limiting rings 12 have a guide hole inside. The diameter of the guide rod 23 is smaller than the inner diameter of the guide hole, and the guide rod 23 is located inside the guide hole.

[0035] During use, the limiting ring 12 and the movable hole provide precise guidance for the guide rod 23, enabling the shield 2 to be accurately aligned during installation and restricting the vertical movement trajectory of the shield 2 outside the chromatograph body 1, thus ensuring the stability and smoothness of the tube movement trajectory of the shield 2.

[0036] To restrict the location of the storage bottle, for example, such as Figure 2As shown, a storage groove 13 is provided on the upper outer wall of the chromatograph body 1. The storage groove 13 is located between the guide mechanisms 3. The inner wall of the storage groove 13 is screwed with a rectangular array of storage tubes 14.

[0037] When in use, the storage slot 13 provides space for the placement of the storage tube 14, and the liquid storage bottle can be placed inside the storage tube 14 for positioning, ensuring the stability of the placement position of the liquid storage bottle.

[0038] For synchronized rotation, for example, such as Figure 2 As shown, the lifting plate 31 is screwed to the upper outer wall of the chromatograph body 1, the roller 32 is pinned to the upper outer wall of the lifting plate 31, and the roller 32 is in contact with the lower outer wall of the cover plate 21. The second slot 33 is opened on the outer wall of the lifting plate 31.

[0039] In use, the combination of the lifting plate 31 and the roller 32 can guide and support the opening and closing of the cover 21. When the shield 2 and the cover 21 cover the storage slot 13, the torsional force of the spring hinge 22 ensures that the relative position of the cover 21 at the upper end of the shield 2 is stable, ensuring that the shield 2 and the cover 21 continuously cover the storage slot 13 area. When the staff manually lowers the shield 2, the cover 21 will be blocked by the roller 32 and rotate around the spring hinge 22 until the cover 21 rotates to be perpendicular to the upper end of the shield 2, thereby removing the cover from the storage slot 13 area, making it easier for the staff to put in or take out the liquid storage bottle inside the storage tube 14.

[0040] For active reset, for example, such as Figure 2 As shown, spring hinges 22 are screwed to both outer walls of the cover plate 21. The other end of the spring hinge 22 is screwed to the outer wall of the shield 2, and the cover plate 21 is rotatably connected to the shield 2 through the spring hinge 22.

[0041] In use, the spring hinge 22 allows the cover plate 21 to open and close flexibly, and it can automatically reset after opening and closing to keep the cover 2 closed.

[0042] To maintain a stable position, for example, such as Figure 4 As shown, a first buckle 26 and a second buckle 27 are respectively installed on the outer walls of both sides of the connecting plate 25. The size of the first buckle 26 is adapted to the size of the first slot 11, and the size of the second buckle 27 is adapted to the size of the second slot 33. The first buckle 26 is snapped into the inside of the first slot 11.

[0043] When in use, when the shield 2 is in the shielding state, the operator inserts the first buckle 26 into the first slot 11 to restrict the position of the shield 2 and maintain the shielding function of the shield 2. When the shield 2 is lowered and in the unshielded state, the operator inserts the second buckle 27 into the second slot 33 to restrict the position of the shield 2 again and keep the storage slot 13 continuously exposed, which makes it convenient for the operator to replace the liquid storage bottle. This realizes the differentiation and fixation of the shield 2 in different working states.

[0044] When in use, the shield 2 is fitted on the upper part of the outer wall of the chromatograph body 1. The guide rod 23 cooperates with the movable hole in the limiting ring 12 to achieve precise alignment and stable installation. At this time, the two side cover plates 21 tightly cover the upper part of the shield 2 under the action of the spring hinge 22, shielding the storage slot 13, the internal storage tube 14 and the liquid storage bottle to prevent the staff from accidentally touching them.

[0045] The staff manually moves the shield 2 downwards, and the guide rod 23 moves vertically within the movable hole of the limiting ring 12 to ensure that the movement trajectory of the shield 2 is stable and smooth. As the shield 2 moves downwards, the lower end of the cover plate 21 contacts the roller 32. Since the position of the roller 32 is fixed, the cover plate 21 is blocked and rotates around the spring hinge 22 until it rotates to be perpendicular to the upper end of the shield 2. The storage slot 13 area is no longer blocked, making it convenient for the staff to operate the liquid storage bottle in the storage tube 14.

[0046] When the shield 2 is lowered to a suitable position, so that the storage slot 13 is fully exposed, the staff will insert the second buckle 27 on the connecting plate 25 into the second slot 33 on the outer wall of the lifting plate 31 to fix the position of the shield 2 at this time and keep the storage slot 13 in a continuously exposed state.

[0047] After replacing or adjusting the storage bottle, the operator moves the shield 2 upwards. The guide rod 23 moves vertically again within the movable hole of the limiting ring 12. As the shield 2 moves upwards, the cover plate 21 gradually disengages from the obstruction of the roller 32 and automatically resets under the torsional force of the spring hinge 22, covering the upper end of the shield 2 again and restoring its obstruction of the storage slot 13. Finally, the first buckle 26 on the connecting plate 25 is engaged into the first slot 11 on the outer wall of the chromatograph body 1 to fix the position of the shield 2.

[0048] It should be noted that this utility model is a liquid storage device for a liquid chromatograph. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A liquid reservoir for a liquid chromatograph, characterized in that, The chromatograph includes a chromatograph body (1), a shield (2), and a guide mechanism (3). The shield (2) is fitted on the upper end of the outer wall of the chromatograph body (1). Cover plates (21) are provided on both sides of the upper outer wall of the shield (2). Guide rods (23) distributed in a rectangular array are screwed to the lower outer wall of the shield (2). Sleeves (24) are screwed to both outer walls of the shield (2). A connecting plate (25) is connected to the inside of the sleeve (24) by a pin. A first slot (11) is provided on the upper end of both outer walls of the chromatograph body (1). A guide mechanism (3) is provided on both sides of the upper outer wall of the chromatograph body (1). The guide mechanism (3) consists of a lifting plate (31), a roller (32), and a second slot (33).

2. The liquid reservoir for a liquid chromatograph according to claim 1, characterized in that, A sealing gasket (15) for providing a seal is bonded and fixed to the upper end of the outer wall of the chromatograph body (1), and the outer wall of the sealing gasket (15) is in contact with the inner wall of the shield (2).

3. A liquid chromatograph reservoir according to claim 1, characterized in that, The outer wall of the chromatograph body (1) is screwed with a rectangular array of limiting rings (12). The limiting rings (12) have a guide hole inside. The diameter of the guide rod (23) is smaller than the inner diameter of the guide hole, and the guide rod (23) is located inside the guide hole.

4. A liquid chromatograph reservoir according to claim 1, characterized in that, The upper outer wall of the chromatograph body (1) is provided with a storage groove (13), which is located between the guide mechanisms (3). The inner wall of the storage groove (13) is screwed with a rectangular array of storage tubes (14).

5. A liquid reservoir for a liquid chromatograph according to claim 1, characterized in that, The lifting plate (31) is screwed to the upper outer wall of the chromatograph body (1), the roller (32) is pinned to the upper outer wall of the lifting plate (31), and the roller (32) is in contact with the lower outer wall of the cover plate (21). The second slot (33) is opened on the outer wall of the lifting plate (31).

6. A liquid chromatograph reservoir according to claim 1, characterized in that, Both sides of the outer wall of the cover plate (21) are screwed with spring hinges (22), and the other end of the spring hinges (22) is screwed to the outer wall of the shield (2), and the cover plate (21) is rotatably connected to the shield (2) through the spring hinges (22).

7. A liquid chromatograph reservoir according to claim 1, characterized in that, The outer walls on both sides of the connecting plate (25) are respectively equipped with a first buckle (26) and a second buckle (27). The size of the first buckle (26) is adapted to the size of the first slot (11), and the size of the second buckle (27) is adapted to the size of the second slot (33). The first buckle (26) is snapped into the inside of the first slot (11).

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