High performance liquid chromatograph

Abstract

The utility model discloses a high performance liquid chromatograph, and particularly relates to the technical field of chromatographic instruments, the high performance liquid chromatograph comprises a frame assembly, the two sides of the frame assembly are respectively provided with a protective limiting assembly, the front side of the frame assembly is provided with a liquid chromatograph assembly, and the high performance liquid chromatograph is inserted into a positioning vertical clamping groove through a butt joint convex plate. The temperature control box, the sample box, the detector and the column oven can be quickly mounted together by the aid of the protective limiting assembly, quick positioning among the temperature control box, the sample box, the detector and the column oven can be realized, positioning difficulty among components of the chromatograph is reduced, assembly efficiency is improved, the outer side of the liquid chromatograph assembly can be effectively protected by the protective limiting assembly, and the safety of the chromatograph assembly is improved. And furthermore, each component of the liquid chromatograph can be limited through a butt joint convex plate, a positioning vertical clamping groove and an L-shaped limiting plate, so that the connection stability among the components is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chromatograph and technical field, concretely is a kind of high performance liquid chromatograph. BACKGROUND

[0002] Chromatograph is a kind of device for chromatographic separation and analysis, and the existing chromatograph is usually used in the detection of vitamin C in vegetables and fruits. Liquid chromatograph is composed of high-pressure infusion pump, sample injection system, temperature control system and the like. It is an instrument for separating and analyzing a mixture by using the difference in distribution ratio of the mixture between liquid-solid or two immiscible liquids.

[0003] For example, the existing patent application No. 202121702686.0 proposes a high performance liquid chromatograph, which comprises a column oven, a detector, a sample box, a temperature control box, an electric control switch, a display, a positioning adsorption cylinder, the column oven, the detector, the sample box and the temperature control box are sequentially installed from top to bottom and electrically connected to install an independent electric control switch, the column oven, the detector, the sample box and the temperature control box are supported and installed by the positioning adsorption cylinder, to ensure the stability of installation. The device is designed for stable installation of column oven, detector, sample box and temperature control box. The positioning adsorption cylinder is placed according to the position of rubber foot pad. The rubber foot pad is connected with the sleeve. It moves downward under the action of gravity. The guide rod is telescopic guide. The support spring is sleeved outside the telescopic sleeve to support the movement. The rubber foot pad presses the lower block. The suction cup is in full contact with the surface of the shell under the pressure to be adsorbed stably. The sleeve and the shell contact surface are formed with anti-slip protrusions to ensure the anti-slip effect.

[0004] However, the high performance liquid chromatograph still has some deficiencies in actual use. For example, when assembling the various components of the chromatograph, the positioning step is relatively tedious, resulting in low assembly efficiency. At the same time, there is a lack of necessary external limiting protection assembly. Once it is collided, the body is easily damaged, and the connection is still prone to slip misalignment when stressed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of high performance liquid chromatograph to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of high performance liquid chromatograph, including frame assembly, the both sides of the frame assembly are provided with protection limiting assembly, the front of the frame assembly is provided with liquid chromatograph assembly;

[0007] The frame assembly includes a mounting bottom plate, a back plate fixedly installed in the middle of the top rear end of the mounting bottom plate, a positioning vertical slot opened in the top surface of the back plate, a double-shaft motor fixedly installed in the middle of the back surface of the mounting bottom plate, and a worm fixedly installed on one end of the output shaft at the two ends of the double-shaft motor.

[0008] The protection limiting assembly includes a side plate, an adapter slot opened in one side surface of the side plate, a rotating shaft rotatably installed in the adapter slot, a worm fixedly sleeved on the bottom of the shaft body of the rotating shaft, a protection baffle fixedly sleeved on the shaft body of the rotating shaft, and an L-shaped limiting plate fixedly installed on the top surface of the protection baffle.

[0009] Preferably, the liquid chromatograph assembly includes a temperature control box, a sample box stacked on the top surface of the temperature control box, a detector stacked on the top surface of the sample box, and a column temperature box stacked on the top surface of the detector.

[0010] Preferably, the middle part of the back surface of the temperature control box, the sample box, the detector and the column temperature box is fixedly installed with a butt joint convex plate, and the butt joint convex plates are slidably inserted into the positioning vertical slot.

[0011] Preferably, the two side plates are fixedly installed on the two side surfaces of the back plate respectively, and the two side plates are symmetrically arranged.

[0012] Preferably, the temperature control box is placed on the top surface of the mounting bottom plate, and the bottom surface of the horizontal part of the L-shaped limiting plate is in close contact with the top surface of the column temperature box.

[0013] Preferably, the two worms and the two worms correspond to each other, the worm and the worm are meshed and connected, and the side surface of the protection baffle is embedded with a plurality of heat dissipation fences.

[0014] Compared with the prior art, the liquid chromatograph assembly has the advantages that:

[0015] The high-efficiency liquid chromatograph can quickly install the temperature control box, the sample box, the detector and the column temperature box together by inserting the butt joint convex plate into the positioning vertical slot, can realize quick positioning between the four components, can reduce the positioning difficulty between the components of the chromatograph, can improve the assembly efficiency, can effectively protect the outer side of the liquid chromatograph assembly through the protection limiting assembly, can avoid the damage or disintegration of the body caused by impact, and can further limit the components of the liquid chromatograph through the butt joint convex plate, the positioning vertical slot and the L-shaped limiting plate, and can improve the connection stability between the components. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is the frame assembly three-dimensional structure schematic view of the utility model;

[0018] Figure 3 It is the protection limiting assembly three-dimensional structure schematic view of the utility model;

[0019] Figure 4 It is the liquid chromatograph assembly three-dimensional structure schematic view of the utility model.

[0020] In the drawing: 1, frame assembly;101, installation bottom plate;102, back plate;103, positioning vertical card slot;104, double-shaft motor;105, worm;2, protection limiting assembly;201, side plate;202, switching groove;203, rotating shaft;204, worm wheel;205, protective baffle;206, heat dissipation fence;207, L-shaped limiting plate;3, liquid chromatograph assembly;301, temperature control box;302, sample box;303, detector;304, column temperature box;305, butt joint convex plate. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] As Figures 1-4 Indicated, the utility model provides a technical scheme: including frame assembly 1, the both sides of frame assembly 1 are provided with protection limiting assembly 2, the front of frame assembly 1 is provided with liquid chromatograph assembly 3;

[0023] The frame assembly 1 includes installation bottom plate 101, the top surface rear end middle part of installation bottom plate 101 is fixedly installed with back plate 102, the top surface of back plate 102 is opened with positioning vertical card slot 103, the back surface middle part of installation bottom plate 101 is fixedly installed with double-shaft motor 104, and one end of the output shaft of double-shaft motor 104 both ends is fixedly installed with worm 105;

[0024] The protection limiting assembly 2 includes side plate 201, the side surface of side plate 201 is opened with switching groove 202, the switching groove 202 is rotatably installed with rotating shaft 203, the bottom end of rotating shaft 203 extends to the bottom surface below side plate 201, and the shaft body bottom of rotating shaft 203 is fixedly sleeved with worm wheel 204, the shaft body of rotating shaft 203 is fixedly sleeved with protective baffle 205, and the top surface of protective baffle 205 is fixedly installed with L-shaped limiting plate 207.

[0025] In the embodiment, the liquid chromatograph assembly 3 comprises a temperature-controlled box 301, a top surface of the temperature-controlled box 301 is stacked with a sample box 302, a top surface of the sample box 302 is stacked with a detector 303, and a top surface of the detector 303 is stacked with a column temperature-controlled box 304.

[0026] The back middle part of the temperature-controlled box 301, the sample box 302, the detector 303 and the column temperature-controlled box 304 is fixedly installed with a butt protruding plate 305, a plurality of butt protruding plates 305 are slidingly inserted into the positioning vertical clamping groove 103, and the butt protruding plates 305 fixedly installed on the back of the temperature-controlled box 301, the sample box 302, the detector 303 and the column temperature-controlled box 304 are inserted into the positioning vertical clamping groove 103, so that the temperature-controlled box 301, the sample box 302, the detector 303 and the column temperature-controlled box 304 can be quickly assembled together, and quick positioning between the four can be achieved.

[0027] Two side plates 201 are fixedly installed on the two side surfaces of the back plate 102, and the two side plates 201 are symmetrically arranged.

[0028] The temperature-controlled box 301 is placed on the top surface of the mounting bottom plate 101, and the bottom surface of the horizontal part of the L-shaped limiting plate 207 is in close contact with the top surface of the column temperature-controlled box 304, so that the vertical displacement of the liquid chromatograph assembly 3 can be limited by the L-shaped limiting plate 207.

[0029] Two worm gears 105 correspond to two worm wheels 204, the worm gear 105 is meshed and connected with the worm wheel 204, and the side surface of the protective baffle 205 is embedded with a plurality of heat dissipation fences 206, so that the heat dissipation performance of the liquid chromatograph can be protected without affecting the heat dissipation performance.

[0030] In use, the temperature-controlled box 301, the sample box 302, the detector 303 and the column temperature-controlled box 304 can be conveniently assembled together, specifically, the butt protruding plates 305 fixedly installed on the back of the temperature-controlled box 301, the sample box 302, the detector 303 and the column temperature-controlled box 304 are aligned with the top surface opening of the positioning vertical clamping groove 103, and then the butt protruding plates 305 are inserted into the positioning vertical clamping groove 103, so that the temperature-controlled box 301, the sample box 302, the detector 303 and the column temperature-controlled box 304 can be quickly assembled together, and quick positioning between the four can be achieved.

[0031] After the temperature control box 301, the sample box 302, the detector 303 and the column temperature box 304 are stacked in turn, the double-shaft motor 104 is started, and under the action of the double-shaft motor 104, the two worms 105 rotate, the rotation of the worms 105 drives the rotation of the two worm gears 204, the rotation of the worm gears 204 drives the rotation of the shafts 203, and the rotation of the two shafts 203 drives the rotation of the two protective baffles 205 to the state of being flush with the two sides of the liquid chromatograph assembly 3, the two sides of the liquid chromatograph assembly 3 can be protected through the protective baffles 205, and at the same time, after the protective baffles 205 are rotated to the protective position, the horizontal part of the L-shaped limiting plate 207 fixedly installed at the top end of the protective baffles 205 is also rotated to the top surface of the column temperature box 304, the vertical displacement of the liquid chromatograph assembly 3 can be limited through the L-shaped limiting plate 207, and the outer side of the liquid chromatograph assembly 3 can be effectively protected through the protective limiting assembly 2, so that the body of the liquid chromatograph assembly 3 is prevented from being damaged or scattered due to impact.

[0032] In summary, the high-performance liquid chromatograph can quickly install the temperature control box 301, the sample box 302, the detector 303 and the column temperature box 304 together by inserting the butt joint convex plate 305 into the positioning vertical clamping groove 103, the rapid positioning between the four components can be realized, the positioning difficulty between the components of the chromatograph is reduced, the assembly efficiency is improved, the outer side of the liquid chromatograph assembly 3 can be effectively protected through the protective limiting assembly 2, so that the body of the liquid chromatograph assembly 3 is prevented from being damaged or scattered due to impact, and the components of the liquid chromatograph can be limited through the butt joint convex plate 305, the positioning vertical clamping groove 103 and the L-shaped limiting plate 207, and the connection stability between the components is improved.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-performance liquid chromatograph, comprising a frame assembly (1), characterized in that... The frame assembly (1) is provided with protective limiting components (2) on both sides, and the frame assembly (1) is provided with a liquid chromatograph assembly (3) on the front. The frame assembly (1) includes a mounting base plate (101), a back plate (102) is fixedly mounted on the middle of the rear end of the top surface of the mounting base plate (101), a positioning vertical slot (103) is provided on the top surface of the back plate (102), a dual-axis motor (104) is fixedly mounted on the middle of the back side of the mounting base plate (101), and a worm gear (105) is fixedly mounted on one end of each of the two output shafts of the dual-axis motor (104). The protective limiting component (2) includes a side plate (201). A transition groove (202) is provided on one side of the side plate (201). A rotating shaft (203) is rotatably installed in the transition groove (202). The bottom end of the rotating shaft (203) extends to the bottom surface of the side plate (201). A worm gear (204) is fixedly sleeved on the bottom of the shaft of the rotating shaft (203). A protective baffle (205) is fixedly sleeved on the shaft of the rotating shaft (203). An L-shaped limiting plate (207) is fixedly installed on the top surface of the protective baffle (205).

2. The high-performance liquid chromatograph according to claim 1, characterized in that, The liquid chromatograph assembly (3) includes a temperature control chamber (301), a sample box (302) is stacked on the top surface of the temperature control chamber (301), a detector (303) is stacked on the top surface of the sample box (302), and a column temperature chamber (304) is stacked on the top surface of the detector (303).

3. The high-performance liquid chromatograph according to claim 2, characterized in that, The back of the temperature control box (301), sample box (302), detector (303) and column temperature box (304) are all fixedly installed with docking protrusions (305), and several docking protrusions (305) are slidably inserted into the positioning vertical slots (103).

4. The high-performance liquid chromatograph according to claim 1, characterized in that, The two side plates (201) are respectively fixedly installed on the two sides of the back plate (102), and the two side plates (201) are arranged symmetrically.

5. A high-performance liquid chromatograph according to claim 2, characterized in that, The temperature control box (301) is placed on the top surface of the mounting base plate (101), and the bottom surface of the horizontal part of the L-shaped limiting plate (207) is in contact with the top surface of the column temperature box (304).

6. A high-performance liquid chromatograph according to claim 1, characterized in that, The two worms (105) correspond one-to-one with the two worm wheels (204), and the worms (105) and worm wheels (204) are meshed and connected. A number of heat dissipation grilles (206) are embedded on one side of the protective baffle (205).

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