CN116714881B - A high performance liquid chromatograph - Google Patents

Abstract

The invention relates to the technical field of chromatograph equipment, and particularly discloses a high-performance liquid chromatograph, which comprises a support component, wherein the support component comprises a chromatograph main body, a placement piece is fixedly arranged at the top end of the chromatograph main body, a clamp is fixedly arranged in the placement piece, the clamp is used for pushing a liquid storage bottle to enable the liquid storage bottle to move in the placement piece, a positioning component is fixedly arranged at the outer side of the clamp, the positioning component is used for limiting the moving position of the clamp to limit the moving direction of the clamp, and the limiting component is fixedly arranged at one end of the clamp; through anchor clamps and locating component matched with, and locating component plays spacing effect to the anchor clamps, and consequently the orbit that anchor clamps removed is restricted, makes anchor clamps can only remove to the inside of placing the piece, and is favorable to anchor clamps to drive spacing subassembly and carry out the spacing purpose of centre gripping to the stock solution bottle, is convenient for improve the stability of stock solution bottle inside placing the piece to guarantee the stability of experiment and go on.

Description

A high performance liquid chromatograph

Technical field

The invention relates to the technical field of chromatograph equipment, and in particular to a high-performance liquid chromatograph.

Background technique

High-performance liquid chromatography is one of the fastest-growing analytical instruments in the world. It is widely used in the analysis of various liquid samples, especially in the fields of medicine, biochemistry, petrochemicals, environmental health, and food. High-performance liquid chromatography can analyze 70%-80% of the total number of organic chemicals and can be applied to product quality analysis in different industries. Most existing high-performance liquid chromatographs are equipped with storage boxes for storage bottles. Multiple storage bottles are placed in the same storage box, which is messy and has poor stability.

For example, Chinese Patent Application No. CN202123225090.9 provides a high-performance liquid chromatograph, including a chromatograph body, a placement box, the placement box is divided into several tanks through vertical partitions, a splint arranged in the tank, and Buffer assembly; the splint is used to fix the jar placed in the tank body; the buffer assembly includes several groups of first buffer components and second buffer components, and the first buffer component includes openings on the side walls of the placement box or partition. The limiting groove, the sliding rod vertically fixed in the limiting groove, the sliding block set on the sliding rod, and the second elastic element fixedly connected with the sliding block, and the second elastic element is fixedly connected with the splint. The above-mentioned patent uses splints to clamp the jar, so that the jar can maintain its stability during the experiment, reduce the probability that the jar will be pulled and tilted by the hose, and ensure the stability of the experiment.

Based on the search of the above patents and combined with the equipment in the prior art, it was found that because the pressure piece relies on the elastic force of the compression spring to resist the liquid storage bottle, and the compression spring will suffer from metal fatigue after being used for a period of time, causing the compression spring to becomes softer, and the elastic stroke of the spring becomes shorter, causing the pressure-resisting effect on the liquid storage bottle to become worse when limiting the position of a small-sized liquid storage bottle, making the pressure piece unable to perform a good job on the liquid storage bottle. limit, so the high performance liquid chromatograph in this patent has poor reliability.

Contents of the invention

In view of the shortcomings of the existing technology, the present invention provides a high-performance liquid chromatograph, which solves the problem that the compression piece relies on the elastic force of the compression spring to resist the liquid storage bottle, and the compression spring will cause metal fatigue after long-term use, causing the spring to The elastic stroke of the product becomes shorter, resulting in a technical problem that its pressure-resisting effect on the liquid storage bottle becomes worse.

In order to achieve the above objects, the present invention adopts the following technical solutions:

The technical solution adopted by the present invention to solve the technical problem is: a high-performance liquid chromatograph, including:

Chromatograph body;

A placement piece is fixedly installed on the top of the chromatograph body. The placement piece includes a placement box, and the placement box is fixedly installed on the top of the chromatograph body. The top of the placement box is fixedly equipped with a placement cover;

Clamp, the clamp is fixedly installed inside the placement piece. The clamp includes a frame, a rotating shaft, a circular gear, a rack and a pressing plate. The frame is fixedly installed inside the placement piece, so A rotating shaft is installed on the frame, and a circular gear is fixedly installed on the rotating shaft, and a rack is inserted inside the placing piece;

A positioning component, which is fixedly installed on the outside of the clamp;

A limiter component, the limiter component is fixedly installed at one end of the clamp, and multiple sets of limiter components are provided inside the placement piece;

The positioning assembly includes a helical gear, and the helical gear is fixedly installed on the outside of the rotating shaft. A square column is inserted inside the frame, and an insertion rod is installed in the vertical direction of the center line of the square column, so The insertion rod is arranged parallel to the rack, and a spring is set on the outside of the insertion rod;

The helical gear one is meshed with the helical gear two installed on the square column through teeth. The inside of the frame is provided with a chute that matches the square column. The inside of the square column is provided with a plug rod. Adaptable holes;

The limiting component includes an arc plate 1, a pressing plate 1 is fixedly installed at one end of the rack 1, and an arc plate 1 is installed at the other end of the rack 1, and an arc plate 1 is fixedly installed on the inside of the arc plate 1. Telescopic rod one, and the outer side of the telescopic rod one is covered with a spring two. One end of the telescopic rod one is fixedly installed with a rubber sheet, and a plurality of guide rods are symmetrically fixed on the outer arc-shaped side wall of the rubber sheet, and all The guide rod penetrates the arc plate one, and the rubber sheet and the arc plate one are slidingly connected through the guide rod. An arc plate two is slidably installed on the upper and lower sides of the arc plate one. The two arc plates two A circular space is formed on the inner side of the curved plate;

A synchronization component is fixedly installed inside the placement piece, and is used for synchronous movement of arc plate one and arc plate two.

Preferably, the circular gear 1 meshes with the rack 1 through teeth, a guide post is fixedly installed on the outside of the pressing plate 1, and a hole matching the guide post is provided inside the placement piece.

Preferably, the synchronization assembly is provided with two groups in total and are symmetrically arranged on the limiting assembly. The synchronization assembly includes a vertical plate, and the vertical plate is fixedly installed inside the placement member. The inside of the vertical plate A rotating shaft is inserted, and a circular gear two is fixedly installed on the outside of the rotating shaft, a rack two is fixedly installed on the outside of the arc plate one, and a rack three is fixed on the outside of the arc plate two, and The third rack and the second rack are arranged in parallel.

Preferably, the second rack and the third rack are meshed with each other through a circular gear.

Preferably, a push assembly is fixedly installed on the outside of the square column, and the push assembly includes a collar. A connecting frame is fixedly installed on the collar, and a pressing plate 2 is fixedly installed on one end of the connecting frame. The connecting frame is connected to The racks are arranged in parallel.

Preferably, a reset component is fixedly installed inside the placement piece, and the reset component includes a telescopic rod 2, a spring 3 is set on the outside of the telescopic rod 2, and a fixed block is fixedly installed at one end of the telescopic rod 2, so The other end of the telescopic rod 2 is fixed on the placement box, and the fixing block is fixedly installed on the outside of the arc plate 2.

Preferably, the chromatograph body includes a chromatograph box, and an opening and closing door is hinged on the side wall of the chromatograph box.

The beneficial effects of the present invention are:

(1) In the positioning assembly of a high-performance liquid chromatograph according to the present invention, when the liquid storage bottle is placed inside the placement piece, the clamp cooperates with the positioning assembly, and the positioning assembly plays a limiting role on the clamp. , so the moving trajectory of the clamp is limited, so that the clamp can only move to the inside of the placement piece, and it is conducive to the purpose of the clamp driving the limit assembly to clamp and limit the liquid storage bottle, which is convenient for improving the stability of the liquid storage bottle inside the placement piece. Stability, thereby ensuring the stable conduct of the experiment.

(2) In the high-performance liquid chromatograph of the present invention, in the pushing assembly, the pressing plate 2 is pressed, and the pressing plate 2 is matched with the connecting frame through the connecting frame, so that the teeth of the helical gear 2 and the helical gear 1 are dislocation, so that the direction of rotation of the helical gear 1 is not restricted, so that the rack 1 can be moved arbitrarily by external force, and the spring 3, the fixed block and the arc plate 2 are matched. At this moment, the liquid storage bottle lacks a limit, so that the storage bottle can be moved freely. The liquid bottle is taken out from the inside of the placement box, so that a new liquid storage bottle can be placed inside the placement box later.

Description of the drawings

Figure 1 is a perspective view of the overall structure of the present invention;

Figure 2 is a partial cross-sectional perspective view of the structure of the placement box and placement cover of the present invention;

Figure 3 is an exploded schematic diagram of the structure of the placement box and placement cover of the present invention;

Figure 4 is a structural perspective view of the frame and curved plate 1 of the present invention;

Figure 5 is a structural perspective view of the first pressing plate and the second pressing plate according to the present invention;

Figure 6 is a structural perspective view of the curved plate 1 and the vertical plate of the present invention;

Figure 7 is an enlarged schematic diagram of position A shown in Figure 6 of the present invention.

In the picture:

1. Main body of chromatograph; 110. Box of chromatograph; 120. Opening and closing door;

2. Place the piece; 210. Place the box; 220. Place the cover;

3. Clamp; 310. Frame; 320. Rotating shaft; 330. Circular gear one; 340. Rack one; 350. Pressing plate one;

4. Positioning component; 410, helical gear one; 420, square column; 430, helical gear two; 440, insertion rod; 450, spring one;

5. Limiting component; 510, curved plate one; 520, telescopic rod one; 530, spring two; 540, rubber sheet; 550, guide rod; 560, curved plate two;

6. Synchronous component; 610, vertical plate; 620, rotating shaft; 630, circular gear two; 640, rack two; 650, rack three;

7. Pushing component; 710. Collar; 720. Connecting frame; 730. Pressing plate 2;

8. Reset component; 810. Telescopic rod 2; 820. Spring 3; 830. Fixed block.

Detailed ways

By providing a high-performance liquid chromatograph, the embodiment of the present invention solves the problem that the compression piece relies on the elastic force of the compression spring to resist the liquid storage bottle. However, long-term use of the compression spring will cause metal fatigue and shorten the elastic stroke of the spring. , resulting in a technical problem that deteriorates its pressure-resistance effect on the liquid storage bottle.

In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation modes.

Example 1:

Please refer to Figures 1-7. A high-performance liquid chromatograph of the present invention includes:

Chromatograph main body 1; Chromatograph main body 1 includes a chromatograph box 110, and an opening and closing door 120 is hinged on the side wall of the chromatograph box 110;

The placing piece 2 is fixedly installed on the top of the chromatograph body 1. The placing piece 2 includes a placing box 210, and the placing box 210 is fixedly installed on the top of the chromatograph body 1. The placing box 210 is fixedly installed on the top of the placing box 210. Cover 220;

Clamp 3. The clamp 3 is fixedly installed inside the placement piece 2. The clamp 3 includes a frame 310, a rotating shaft 320, a circular gear 330, a rack 340 and a pressing plate 350. The frame 310 is fixed Installed inside the placing part 2, a rotating shaft 320 is installed on the frame 310, and a circular gear 330 is fixedly installed on the rotating shaft 320, and a rack 340 is inserted inside the placing part 2;

Positioning component 4, the positioning component 4 is fixedly installed on the outside of the clamp 3;

The positioning assembly 4 includes a helical gear 410, and the helical gear 410 is fixedly installed on the outside of the rotating shaft 320. A square column 420 is inserted inside the frame 310, and the vertical direction of the center line of the square column 420 A plug-in rod 440 is installed on the top, the plug-in rod 440 is arranged parallel to the rack 340, and a spring 450 is set on the outside of the plug-in rod 440;

The first helical gear 410 meshes with the second helical gear 430 installed on the square column 420 through teeth. A chute that matches the square column 420 is provided inside the frame 310. The inside of the square column 420 A hole is provided that matches the insertion rod 440;

Limiting component 5, the limiting component 5 is fixedly installed on one end of the clamp 3, and there are multiple sets of limiting components 5 inside the placement piece 2. The limiting component 5 includes an arc plate 510, a rack A pressing plate 350 is fixedly installed on one end of the rack 340, and an arc plate 510 is installed on the other end of the rack 340. A telescopic rod 520 is fixedly installed on the inside of the arc plate 510, and the telescopic rod A spring 530 is set on the outer side of the first telescopic rod 520. A rubber sheet 540 is fixedly installed on one end of the telescopic rod 520, and a plurality of guide rods 550 are symmetrically fixed on the outer arc-shaped side wall of the rubber sheet 540, and the The guide rod 550 penetrates the arc plate one 510. The rubber sheet 540 and the arc plate one 510 are slidingly connected through the guide rod 550. The arc plate two 560 is slidably installed on the upper and lower sides of the arc plate one 510. The two arc-shaped plates 560 and the arc-shaped plate one 510 form a circular space inside;

The synchronization component 6 is fixedly installed inside the placement part 2. The synchronization component 6 is used for the synchronous movement of the arc plate one 510 and the arc plate two 560.

When the device is working, when the liquid storage bottle is placed inside the placement box 210 and the placement cover 220, the pressing plate 350 is pressed. At this time, the pressing plate 350 drives the rack 340 to mesh with the circular gear 330 through teeth. At the same time, the circular gear 330 drives the helical gear 410 through the rotating shaft 320 to mesh with the helical gear 2 430 through the teeth. Since the helical gear 430 is squeezed by the elastic force of the spring 450 through the square column 420, the helical gear 1 The direction of rotation of 410 is limited, so the helical gear 410 can only rotate clockwise, which prevents the rack 340 from moving outward inside the placement box 210 and facilitates the rack 340 to drive the limiter assembly 5 to carry out the liquid storage bottle The purpose of clamping and limiting is to improve the stability of the liquid storage bottle inside the placement box 210 and the placement cover 220 .

Example 2:

Please refer to Figure 2, Figure 3, Figure 4, Figure 6 and Figure 7. The synchronization component 6 is provided with two groups in total and are symmetrically arranged on the limiting component 5. The synchronization component 6 includes a vertical plate 610, and The vertical plate 610 is fixedly installed inside the placing member 2. A rotating shaft 620 is inserted inside the vertical plate 610, and a circular gear 630 is fixedly installed on the outside of the rotating shaft 620. The arc plate 1 510 A rack 2 640 is fixedly installed on the outside of the arc plate 560 , a rack 3 650 is fixedly installed on the outside of the arc plate 560 , and the rack 3 650 is arranged parallel to the rack 2 640 .

When the device is working, when the rack 340 drives the arc plate 510 to move, the arc plate 510 meshes with the circular gear 630 through the teeth of the rack 2 640. At the same time, the circular gear 2 630 and the rack 3 650 are meshed with the teeth to drive the arc plate 2 560 to move, and the arc plate 560 is stably supported by the reset assembly 8 so that the arc plate 560 passes through the rack 3 650 and the circular gear 2 630 and the second rack 640 move in the opposite direction to the curved plate 510, which is conducive to wrapping the outside of the liquid storage bottle, and the elastic force of the second spring 530 cooperates with the guidance of the guide rod 550 to facilitate the passage of the second spring 530. The elastic deformation causes the two sets of rubber sheets 540 to squeeze the outside of the liquid storage bottle. At this moment, most of the outside of the liquid storage bottle is evenly stressed, thereby improving the stability of the liquid storage bottle placed inside the placement box 210 .

Embodiment three:

Please refer to Figure 2, Figure 3, Figure 4, Figure 5, Figure 6 and Figure 7. The push assembly 7 is fixedly installed on the outside of the square column 420, and the push assembly 7 includes a collar 710, and a connecting frame is fixed on the outside of the collar 710. 720, and a pressing plate 730 is fixedly installed at one end of the connecting frame 720. The connecting frame 720 is arranged parallel to the rack 340. A reset component 8 is fixedly installed inside the placement piece 2, and the reset component 8 includes a telescopic rod 810. , the telescopic rod two 810 is fixedly installed inside the placement piece 2, the outside of the telescopic rod two 810 is covered with a spring three 820, one end of the telescopic rod 810 is fixedly installed with a fixing block 830, and the fixing block 830 is fixedly installed on the arc plate Outside the two 560, one end of the spring three 820 is fixedly installed on the inner wall of the placement box 210, and the other end of the spring three 820 is fixedly installed on the outside of the fixing block 830.

When the device is working, the second pressing plate 730 is pressed, and the second pressing plate 730 drives the square column 420 to move through the connecting frame 720. At this moment, the teeth of the second helical gear 430 and the first helical gear 410 are misaligned, causing the helical gear 410 to rotate in the opposite direction. It is not restricted, and the fixed block 830 drives the arc plate two 560 to move through the elastic force of the spring three 820, and the arc plate two 560 moves the arc plate one 510 outward through the synchronization assembly 6. At this moment, the liquid storage bottle is not affected by the movement of the arc plate 510. The arc plate one 510 and the arc plate two 560 are limited to facilitate the removal of the liquid storage bottle from the inside of the placement box 210 .

Working principle: The user connects the device to an external power supply and then turns on the switch. When the liquid storage bottle is placed inside the placement box 210 and the placement cover 220, the pressing plate 350 is pressed. At this time, the pressing plate 350 drives the rack 340 and the circular The first gear 330 meshes with the teeth. At the same time, the circular gear 330 drives the helical gear 410 through the rotating shaft 320 and the second helical gear 430 meshes with the teeth, and the insertion rod 440 is inserted inside the square column 420. Since The second helical gear 430 is squeezed by the elastic force of the spring one 450 through the square column 420, so that the second helical gear 430 slides on the outside of the insertion rod 440. At the same time, the teeth of the second helical gear 430 mesh with the teeth of the first helical gear 410. , the rotation direction of the helical gear 410 is limited, so the helical gear 410 can only rotate clockwise, and the circular gear 330 is affected by the limited rotation direction of the helical gear 410 through the rotating shaft 320, preventing the rack 340 from being The inside of the placement box 210 moves outward. When the rack 340 drives the arc plate 510 to move, the arc plate 510 meshes with the circular gear 630 through the teeth of the rack 2 640. At the same time, the arc plate 510 meshes with the circular gear 630. The second gear 630 and the third rack 650 drive the curved plate 560 to move through the meshing of the teeth, and the second curved plate 560 is stably supported by the reset assembly 8, so that the second curved plate 560 passes through the third rack 650 and the circle. The second curved gear 630 and the second rack 640 move in the opposite direction to the curved plate one 510, which is beneficial to wrapping the outside of the liquid storage bottle, and the elastic force of the second spring 530 cooperates with the guidance of the guide rod 550 to facilitate the passage of the spring. The elastic deformation of the second 530 causes the two sets of rubber sheets 540 to squeeze the outside of the liquid storage bottle, preventing the rack 340 from driving the arc plate 1 510 from exerting excessive pressure on the liquid storage bottle, causing most of the outside area of the liquid storage bottle to be affected. The force is uniform, thereby improving the stability of the liquid storage bottle placed inside the placement box 210, and then pressing the second pressing plate 730, the second pressing plate 730 drives the square column 420 and the second helical gear 430 to move through the connecting frame 720 and the connecting frame 720. At this moment The teeth of helical gear two 430 and helical gear one 410 are misaligned, so that the rotation direction of helical gear one 410 is not restricted, and the elastic force of spring three 820 causes the fixed block 830 to drive the arc plate two 560 to move. At this moment, the arc shape The second plate 560 meshes with the second circular gear 630 through the teeth of the third rack 650, so that the second circular gear 630 meshes with the second rack 640 through the teeth, so that the second rack 640 drives the arc plate one 510 outward. Move, at this moment the liquid storage bottle is not limited by the arc plate one 510 and the arc plate two 560, so that the liquid storage bottle can be taken out from the inside of the placement box 210, so that a new liquid storage bottle can be placed in the subsequent The inside of the box 210 is placed.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited to the above embodiments. The above descriptions of the embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also be There are various changes and improvements, which fall within the scope of the invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims (2)

1. A high performance liquid chromatograph, characterized in that it includes: Chromatograph body (1); The placing piece (2) is fixedly installed on the top of the chromatograph main body (1). The placing piece (2) includes a placing box (210), and the placing box (210) is fixedly installed on the chromatograph main body (210). 1) The top of the placement box (210) is fixedly equipped with a placement cover (220); The clamp (3) is fixedly installed inside the placement piece (2). The clamp (3) includes a frame (310), a rotating shaft (320), a circular gear (330), and teeth. Strip one (340) and pressing plate one (350), the frame (310) is fixedly installed inside the placement piece (2), a rotating shaft (320) is installed on the frame (310), and the rotating shaft (320) ) is fixedly mounted with a circular gear (330), and a rack (340) is inserted inside the placement piece (2); Positioning component (4), the positioning component (4) is fixedly installed on the outside of the clamp (3); The positioning assembly (4) includes a helical gear (410), and the helical gear (410) is fixedly installed on the outside of the rotating shaft (320), and a square column (420) is inserted inside the frame (310). , and an insertion rod (440) is installed in the vertical direction of the center line of the square column (420). The insertion rod (440) is arranged parallel to the first rack (340), and the outer side of the insertion rod (440) The sleeve is provided with spring one (450); The first helical gear (410) meshes with the second helical gear (430) installed on the square column (420) through teeth, and the inside of the frame (310) is provided with a helical gear that matches the square column (420). chute, the inside of the square column (420) is provided with a hole that matches the insertion rod (440); Limiting component (5), the limiting component (5) is fixedly installed at one end of the clamp (3), and multiple sets of limiting components (5) are provided inside the placing piece (2). The limiting component (5) It includes an arc plate (510), a pressing plate (350) is fixedly installed at one end of the rack (340), and an arc plate (510) is installed at the other end of the rack (340). ), a telescopic rod (520) is fixedly installed on the inner side of the arc-shaped plate one (510), and a spring two (530) is set on the outside of the telescopic rod one (520), and the telescopic rod one (520) A rubber sheet (540) is fixedly installed on one end, and a plurality of guide rods (550) are symmetrically fixed and fixed on the outer arc-shaped side wall of the rubber sheet (540), and the guide rods (550) penetrate the arc-shaped plate one (510) ), the rubber sheet (540) and the arc plate one (510) are slidingly connected through the guide rod (550), and the arc plate two (560) is slidably installed on the upper and lower sides of the arc plate one (510). ), the two arc-shaped plates (560) and the arc-shaped plate one (510) form a circular space inside; Synchronization component (6), the synchronization component (6) is fixedly installed inside the placement piece (2), the synchronization component (6) is used for the arc plate one (510) and the arc plate two (560) synchronized movement; The circular gear one (330) meshes with the rack one (340) through teeth. A guide column is fixedly installed on the outside of the pressing plate one (350). There are openings inside the placing member (2). Holes to match the guide posts; The synchronization component (6) is provided with two groups in total and are symmetrically arranged on the limit component (5). The synchronization component (6) includes a vertical plate (610), and the vertical plate (610) is fixedly installed on the position. Inside the placement piece (2), a rotating shaft (620) is inserted inside the vertical plate (610), and a circular gear (630) is fixedly installed on the outside of the rotating shaft (620). The arc-shaped A rack two (640) is fixedly installed on the outside of the plate one (510), a rack three (650) is fixedly installed on the outside of the arc plate two (560), and the rack three (650) and the rack Two (640) parallel settings; The second rack (640) and the third rack (650) are meshed with each other through the second circular gear (630); A push assembly (7) is fixedly installed on the outside of the square column (420), and the push assembly (7) includes a collar (710). A connecting frame (720) is fixedly installed on the collar (710), and is connected to A pressing plate two (730) is fixedly installed at one end of the frame (720), and the connecting frame (720) is arranged parallel to the rack one (340); A reset component (8) is fixedly installed inside the placement piece (2), and the reset component (8) includes a telescopic rod two (810), and a spring three (820) is set on the outside of the telescopic rod two (810). , one end of the telescopic rod two (810) is fixedly installed with a fixing block (830), the other end of the telescopic rod two (810) is fixed on the placement box (210), and the fixing block (830) is fixedly installed on the arc The outside of shape plate two (560). 2. A high performance liquid chromatograph according to claim 1, characterized in that: the chromatograph body (1) includes a chromatograph box (110), and the side wall of the chromatograph box (110) is hinged There are opening and closing doors (120).