A locking structure for portable liquid chromatograph

Abstract

The utility model discloses a locking structure for a portable liquid chromatograph, which is arranged on both sides of a cover plate movably connected to the top of a solvent bottle, the top of the solvent bottle is integrally connected with a bottle tube mouth, and the solvent bottle is placed in a placement hole opened on the top of the chromatograph body. The utility model is clamped in the direction of the bottle tube mouth through the cover plate. During the movement, due to the arc design of the clamping block, the clamping block is slidably connected on the inner surface of the slideway, thereby driving the connected rod body to move, and the rod body slides on the inner surface of the cylinder through the sliding handle, thereby stretching the spring, and when sliding into the corresponding clamping hole, the spring is clamped into the corresponding clamping hole by utilizing the action force between the spring, the sliding handle and the cylinder, thereby achieving the purpose of direct clamping. By setting the above structure, it is realized that the clamping is clamped in the bottle mouth of the solvent bottle in a direct clamping manner, thereby facilitating the operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid chromatographs, and particularly relates to a locking structure for a portable liquid chromatograph. Background Art

[0002] Liquid chromatograph refers to an instrument that uses the difference in the distribution ratio of a mixture between liquid and solid or between two immiscible liquids to first separate the mixture and then analyze and identify it.

[0003] A solvent bottle is placed on the top of the liquid chromatograph. Generally, a hole is opened at the bottle mouth. The liquid in the solvent bottle is then pumped into the detection pool by inserting a silicone catheter, and then the bottle cap is screwed on the surface of the bottle mouth by a threaded connection. This method increases the complexity of the operation and adds inconvenience to the insertion of the catheter. For this reason, we propose a locking structure for a liquid chromatograph, which can be directly sleeved on the surface of the bottle mouth by a snap-on method, thereby improving convenience and solving the above-mentioned shortcomings. Utility Model Content

[0004] The utility model aims to provide a locking structure for a portable liquid chromatograph, which can be directly snapped onto the bottle mouth of a solvent bottle, thereby facilitating operation and solving the above-mentioned background technical problems.

[0005] The utility model solves the above-mentioned technical problems with the following technical solutions: a locking structure for a portable liquid chromatograph, the locking structure being arranged on both sides of a cover plate movably connected to the top of a solvent bottle, the top of the solvent bottle being integrally connected with a bottle pipe mouth, the solvent bottle being placed in a placement hole opened at the top of a chromatograph body, the bottom of the right side of the chromatograph body being connected with a liquid inlet pipe, the side of the liquid inlet pipe away from the chromatograph body being connected with a hose, the side of the hose away from the liquid inlet pipe being connected with a micro pump, the bottom of the micro pump being fixedly connected with the top of the cover plate, the inner surface of the cover plate and the outer surface of the bottle pipe mouth being clamped by a locking structure, the water inlet of the micro pump being connected with a conduit, the conduit being located inside the bottle pipe mouth and extending to the bottom of the inner cavity of the solvent bottle, the locking structure being clamped on both sides of the surface of the bottle pipe mouth by sliding;

[0006] The locking structure includes a cylinder fixedly connected to both sides of the cover surface, the inner surface of the cylinder is slidably connected with a sliding handle, the axis of the sliding handle is fixedly connected with a rod body, the surface of the rod body is sleeved with a spring, one end of the spring is fixedly connected to one side of the cylinder inner cavity, the other end of the spring is fixedly connected to one side of the sliding handle, the surface of the rod body penetrates and slides on the inner surface of the cover, and the end surface of the rod body located inside the cover is fixedly connected with a clamping block, which is clamped between the clamping block and the bottle tube mouth.

[0007] Preferably, a ring block is fixedly connected to the end surface of the rod body located outside the cylinder body.

[0008] Preferably, slideways are provided on both sides of the surface of the bottle tube mouth, and the inner surface of the slideway is provided with a clamping hole for the sliding clamping of the clamping block.

[0009] Preferably, the surface of the clamping block is designed to be arc-shaped, and the size of the clamping block is smaller than the inner diameter of the clamping hole.

[0010] Preferably, the inner cavity of the placement hole is divided into placement cavities by a partition.

[0011] 1. The beneficial effect of the utility model is that the utility model is connected in the direction of the bottle tube mouth through the cover plate. During the movement, due to the arc design of the clamping block, the clamping block is slidably connected on the inner surface of the slideway, thereby driving the rod body connected to it to move, and the rod body slides on the inner surface of the cylinder body through the sliding handle, thereby stretching the spring. When sliding into the corresponding clamping hole, the spring is clamped into the corresponding clamping hole by utilizing the action force between the spring, the sliding handle and the cylinder body, thereby achieving the purpose of direct clamping. By setting the above structure, the direct clamping method is realized to clamp on the bottle mouth of the solvent bottle, thereby facilitating the operation.

[0012] 2. The utility model arranges a ring block fixedly connected to the end surface of the rod body located outside the cylinder body, which is convenient for the inspection personnel to insert their fingers, thereby stretching the cover plate to the outside, and facilitating the disassembly between the cover plate and the bottle tube mouth.

[0013] 3. The utility model sets the surface of the clamping block to be an arc-shaped design. The size of the clamping block is smaller than the inner diameter of the clamping hole, so that the position of the clamping block can be offset under the force of the slide.

[0014] 4. The utility model can facilitate the placement of multiple solvent bottles by dividing the inner cavity of the placement hole through a partition. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] in:

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection between the catheter and the solvent bottle of the utility model;

[0018] Figure 3 For this utility model Figure 2 A partial enlarged view of point A;

[0019] Figure 4 This is a schematic diagram of the card block structure of the utility model.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Chromatograph body; 2. Liquid inlet pipe; 3. Hose; 4. Solvent bottle; 5. Bottle mouth; 6. Cover plate; 7. Micro pump; 8. Catheter; 9. Cylinder; 10. Rod; 11. Sliding handle; 12. Spring; 13. Slide; 14. Clamp hole; 15. Placement hole; 16. Clamp block. DETAILED DESCRIPTION

[0022] Hereinafter, an embodiment of the locking structure for a portable liquid chromatograph of the present invention will be described with reference to the accompanying drawings.

[0023] Embodiment 1:

[0024] Figure 1-4 The utility model shows a locking structure for a portable liquid chromatograph of an embodiment of the present invention. The locking structure is arranged on both sides of a cover plate 6 movably connected to the top of the solvent bottle 4. The top of the solvent bottle 4 is integrally connected with a bottle pipe mouth 5. Both sides of the surface of the bottle pipe mouth 5 are provided with slideways 13. The inner surface of the slideway 13 is provided with a card hole 14 for sliding card engagement of a card block 16. The solvent bottle 4 is placed in a placement hole 15 opened on the top of the chromatograph body 1. The bottom of the right side of the chromatograph body 1 is connected to the liquid inlet pipe 2. The side of the liquid inlet pipe 2 away from the chromatograph body 1 is connected to a hose 3. The side of the hose 3 away from the liquid inlet pipe 2 is connected to a micro pump 7. The bottom of the micro pump 7 is fixedly connected to the top of the cover plate 6. The inner surface of the cover plate 6 and the outer surface of the bottle pipe mouth 5 are connected by a locking structure. The water inlet of the micro pump 7 is connected with a catheter 8. The catheter 8 is located inside the bottle pipe mouth 5 and extends to the bottom of the inner cavity of the solvent bottle 4. The locking structure is connected to both sides of the surface of the bottle pipe mouth 5 by sliding card engagement.

[0025] The locking structure includes a cylinder 9 fixedly connected to both sides of the surface of the cover plate 6, the inner surface of the cylinder 9 is slidably connected with a sliding handle 11, a rod 10 is fixedly connected at the axis of the sliding handle 11, a spring 12 is sleeved on the surface of the rod 10, one end of the spring 12 is fixedly connected to one side of the inner cavity of the cylinder 9, the other end of the spring 12 is fixedly connected to one side of the sliding handle 11, the surface of the rod 10 penetrates and slides on the inner surface of the cover plate 6, and a clamping block 16 is fixedly connected to one end face of the rod 10 located inside the cover plate 6, the surface of the clamping block 16 is designed to be arc-shaped, and the size of the clamping block 16 is smaller than the inner diameter of the clamping hole 14. By setting the surface of the clamping block 16 to be arc-shaped and the size of the clamping block 16 to be smaller than the inner diameter of the clamping hole 14, it can be made possible to lock the slideway 1 3, the position of the squeezing block 16 is offset, the block 16 is clamped with the bottle tube mouth 5, and is clamped in the direction of the bottle tube mouth 5 through the cover plate 6. During the movement, due to the arc design of the block 16, the block 16 is slidably connected on the inner surface of the slideway 13, thereby driving the rod body 10 connected thereto to move, and the rod body 10 slides on the inner surface of the cylinder 9 through the sliding handle 11, thereby stretching the spring 12. When sliding into the corresponding clamping hole 14, the spring 12 is clamped into the corresponding clamping hole 14 by the force between the sliding handle 11 and the cylinder 9, thereby achieving the purpose of direct buckling. By setting the above structure, it is realized that the bottle mouth of the solvent bottle is clamped in a direct clamping manner, thereby facilitating the operation.

[0026] Embodiment 2:

[0027] Figure 1-4 The locking structure for a portable liquid chromatograph of an embodiment of the utility model is shown. The locking structure is arranged on both sides of a cover plate 6 movably connected to the top of the solvent bottle 4. The top of the solvent bottle 4 is integrally connected with a bottle pipe mouth 5. The solvent bottle 4 is placed in a placement hole 15 opened at the top of the chromatograph body 1. The inner cavity of the placement hole 15 is divided into placement cavities by a partition. By setting the inner cavity of the placement hole 15 to be divided by a partition, it is convenient to place multiple solvent bottles. The bottom of the right side of the chromatograph body 1 is connected to the liquid inlet pipe 2. The side of the liquid inlet pipe 2 away from the chromatograph body 1 is connected to a hose 3. The side of the hose 3 away from the liquid inlet pipe 2 is connected to a micro pump 7. The bottom of the micro pump 7 is fixedly connected to the top of the cover plate 6. The inner surface of the cover plate 6 and the outer surface of the bottle pipe mouth 5 are clamped by a locking structure. The water inlet of the micro pump 7 is connected with a catheter 8. The catheter 8 is located inside the bottle pipe mouth 5 and extends to the bottom of the inner cavity of the solvent bottle 4. The locking structure is clamped on both sides of the surface of the bottle pipe mouth 5 by sliding.

[0028] The locking structure includes a cylinder 9 fixedly connected to both sides of the surface of the cover plate 6, and a sliding handle 11 is slidably connected to the inner surface of the cylinder 9, and a rod body 10 is fixedly connected to the axis of the sliding handle 11, and the end surface of the rod body 10 located on the outside of the cylinder 9 is fixedly connected to a ring block. By setting the end surface of the rod body 10 located on the outside of the cylinder 9 to be fixedly connected to the ring block, it is convenient for the inspection personnel to insert their fingers, thereby stretching toward the outside of the cover plate 6, and facilitating the disassembly between the cover plate 6 and the bottle tube mouth 5. A spring 12 is sleeved on the surface of the rod body 10, one end of the spring 12 is fixedly connected to one side of the inner cavity of the cylinder 9, and the other end of the spring 12 is fixedly connected to one side of the sliding handle 11. The surface of the rod body 10 penetrates and slides on the inner surface of the cover plate 6, and an end surface of the rod body 10 located inside the cover plate 6 is fixedly connected to a clamping block 16, which is clamped between the clamping block 16 and the bottle tube mouth 5.

[0029] Working principle: When the utility model is used, the cover plate 6 is snapped in the direction of the bottle tube mouth 5. During the movement, due to the arc design of the clamping block 16, the clamping block 16 is slidably connected on the inner surface of the slide 13, thereby driving the connected rod body 10 to move, and the rod body 10 slides on the inner surface of the cylinder 9 through the sliding handle 11, thereby stretching the spring 12. When sliding into the corresponding clamping hole 14, the spring 12 is snapped into the corresponding clamping hole 14 by utilizing the action force between the sliding handle 11 and the cylinder 9, thereby achieving the purpose of direct snapping, realizing the direct snapping method to snap on the bottle mouth of the solvent bottle, thereby facilitating operation. After the snap connection is completed, the micro pump 7 is started to draw the solvent into the hose 3 through the conduit 8, and then discharged into the detection pool in the chromatograph body 1 for detection.

Claims

1. A locking structure for a portable liquid chromatograph, the locking structure being arranged on both sides of a cover plate (6) movably connected to the top of a solvent bottle (4), characterized in that: The top of the solvent bottle (4) is integrally connected to a bottle pipe mouth (5), the solvent bottle (4) is placed in a placement hole (15) opened on the top of the chromatograph body (1), the bottom of the right side of the chromatograph body (1) is connected to a liquid inlet pipe (2), the side of the liquid inlet pipe (2) away from the chromatograph body (1) is connected to a hose (3), the side of the hose (3) away from the liquid inlet pipe (2) is connected to a micro pump (7), the bottom of the micro pump (7) is fixedly connected to the top of the cover plate (6), the inner surface of the cover plate (6) and the outer surface of the bottle pipe mouth (5) are clamped by a locking structure, the water inlet of the micro pump (7) is connected to a conduit (8), the conduit (8) is located inside the bottle pipe mouth (5) and extends to the bottom of the inner cavity of the solvent bottle (4), and the locking structure is clamped on both sides of the surface of the bottle pipe mouth (5) by sliding; The locking structure comprises a cylinder (9) fixedly connected to both sides of the surface of the cover plate (6); the inner surface of the cylinder (9) is slidably connected with a sliding handle (11); the axis of the sliding handle (11) is fixedly connected with a rod (10); the surface of the rod (10) is sleeved with a spring (12); one end of the spring (12) is fixedly connected to one side of the inner cavity of the cylinder (9); the other end of the spring (12) is fixedly connected to one side of the sliding handle (11); the surface of the rod (10) penetrates and slides on the inner surface of the cover plate (6); one end surface of the rod (10) located inside the cover plate (6) is fixedly connected with a clamping block (16); the clamping block (16) is clamped with the bottle tube mouth (5).

2. A locking structure for a portable liquid chromatograph according to claim 1, characterized in that: The end surface of the rod body (10) located outside the cylinder body (9) is fixedly connected with a ring block.

3. The locking structure for a portable liquid chromatograph according to claim 1, characterized in that: Slideways (13) are provided on both sides of the surface of the bottle tube mouth (5), and the inner surface of the slideway (13) is provided with a clamping hole (14) for slidingly clamping a clamping block (16).

4. A locking structure for a portable liquid chromatograph according to claim 3, characterized in that: The surface of the clamping block (16) is designed to be arc-shaped, and the size of the clamping block (16) is smaller than the inner diameter of the clamping hole (14).

5. The locking structure for a portable liquid chromatograph according to claim 1, characterized in that: The inner cavity of the placement hole (15) is divided into placement cavities by a partition.

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