Chromatographic column thermostat for chromatograph

Abstract

The utility model discloses a chromatographic column thermostat for chromatograph relates to chromatograph and its accessory technical field, the utility model discloses a box body, the left and right two side wall bottom of box body is inlayed and is installed with suction assembly, and suction assembly includes the built -in frame of inlaying on the side wall of box body, and the built -in frame is installed with fan, and the inside wall of box body corresponding to suction assembly is installed with the wind -proof subassembly, and the wind -proof subassembly includes the slide -in board of setting in the inside of box body, and the slide -in board is inlayed and installed with electric heating net, and the inside wall bottom of box body is provided with the bearing assembly, and the extrusion assembly is installed on the top inner wall of box body in the just above of bearing assembly. The utility model discloses through suction assembly and wind -proof subassembly not only can heat the gas environment in the box body, still can avoid hot -blast direct -blowing chromatographic column, and through bearing assembly and extrusion assembly can carry out the effect of the individual storage of multiple different height and diameter chromatographic column.

Description

Technical Field

[0001] This utility model belongs to the technical field of chromatographs and their accessories, and in particular relates to a constant temperature oven for a chromatograph column. Background Technology

[0002] A chromatograph is an analytical instrument that uses a mobile phase to carry the analyte through a stationary phase to achieve physical separation. One of the most important components of a chromatograph is the chromatographic column, which is the core component for achieving substance separation. Columns must be stored independently to prevent cross-contamination and performance degradation, and they are usually stored in a constant temperature chamber.

[0003] Chinese patent application CN218752234U discloses an ion chromatography column thermostat, comprising a thermostat body, a control box fixed to the right end of the thermostat body, a door connected to the thermostat body via hinges, a motor fixed to the upper end of the thermostat body, and a rotating shaft fixed to the output end of the motor, the rotating shaft being bearing-connected to the thermostat body; further comprising: a base fixed to the rotating shaft, a movable plate disposed above the base, the movable plate being penetrated by the rotating shaft and capable of vertical movement, and a top block disposed within a slot on the movable plate; and a movable frame disposed below the rotating shaft. This ion chromatography column thermostat uses an adjustable elastic limiting mechanism to accommodate ion chromatography columns of different sizes while ensuring the stability of the column fixation. Combined with a linked blower mechanism, it can accelerate airflow within the thermostat, ensuring temperature uniformity and thus guaranteeing the heating effect on the ion chromatography column.

[0004] The aforementioned ion chromatography column thermostat has an internal structure comprising a base and a movable plate, positioned at the upper and lower ends of the column, respectively. The movable plate can move vertically to adjust the distance between the plate and the base, thus accommodating columns of different lengths. However, this structure is unsuitable for storing multiple columns, not just one. Furthermore, the thermostat also includes a blower mechanism to directly blow hot air onto the column, which can cause excessive drying of the column surface. Therefore, we provide a chromatographic column thermostat to address these problems. Utility Model Content

[0005] The purpose of this invention is to provide a chromatographic column constant temperature chamber for chromatography. Through the suction component and the wind baffle component, it can not only heat the gas environment inside the chamber, but also prevent hot air from blowing directly onto the chromatographic column. Through the support component and the compression component, it can individually store multiple chromatographic columns of different heights and diameters, thus solving the problems of the aforementioned ion chromatography column constant temperature chamber.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a chromatographic column constant temperature chamber for a chromatogram, comprising a chamber body, a door installed on the front side wall of the chamber body, and a controller embedded in the door; suction components are embedded in the bottom of the left and right side walls of the chamber body, each suction component including an internal frame embedded in the side wall of the chamber body, and a fan installed in the internal frame; a windbreak component is installed on the inner side wall of the chamber body corresponding to the suction component, the windbreak component including a sliding plate disposed inside the chamber body, and an electric heating mesh embedded in the sliding plate, the outer side of the electric heating mesh being adjacent to the outer side of the sliding plate. A wind baffle is installed on the wall. A bearing assembly is provided at the bottom of the inner side wall of the box. An extrusion assembly is installed directly above the bearing assembly and on the top inner wall of the box. The bearing assembly includes a motor installed on the bottom inner wall of the box, and a bearing plate is installed on the shaft end of the motor. A clamping component is embedded in the bearing plate. The extrusion assembly includes a lifting block fixed on the top inner wall of the box. An electric push rod is rotatably installed on the bottom side wall of the lifting block. An extrusion plate is installed on the bottom end of the electric push rod, and a clamping component is embedded in the extrusion plate.

[0007] The present invention is further configured such that the bottom of the left and right side walls of the box body is provided with a box groove, the inner side wall of the box body is provided with a sliding slot, and the center of the bottom inner wall of the box body is provided with a bottom groove.

[0008] The present invention is further configured such that the built-in frame is embedded in the inside of the box groove, and a fixing frame is installed inside the built-in frame. The built-in frame is connected to the fan through the fixing frame, and a purification plate is embedded in the side wall of the built-in frame located outside the box.

[0009] The present invention is further configured such that the sliding plate is slidably inserted into the sliding slot, the sliding plate has a plate groove, and the electric heating mesh is embedded in the plate groove. The sliding plate is arranged at the bottom of the side wall of the box with an inclined structure, which is used to enclose the area where the suction component is located.

[0010] The present invention is further configured such that a frame is installed in the bottom groove, and the motor is fixedly installed inside the frame. The upper side wall of the bearing plate is provided with six storage slots arranged in a ring array, and side slots are provided on the inner walls of both sides of the storage slots.

[0011] The present invention is further configured such that the clamping member includes a clamping block slidably disposed in the side groove, and one outer wall of the clamping block is connected to the inner wall of the side groove by a spring, and a soft clamping plate is provided on the other side.

[0012] The present invention is further configured such that a second storage groove is provided on the extrusion plate, and a second side groove is provided on the inner walls of both sides of the second storage groove, and a second clamping member is installed in the second side groove. The first storage groove and the second storage groove are arranged vertically opposite each other, and the first clamping member and the second clamping member have the same structure.

[0013] This utility model has the following beneficial effects: 1. This utility model incorporates a suction assembly and a windbreak assembly. Two suction assemblies are provided, each embedded in the bottom of the left and right side walls of the housing. A windbreak assembly is also provided at the inner end of the suction assembly within the housing. Each suction assembly includes an internal frame embedded in the side wall of the housing, connected to a fan via a fixing bracket. A purification plate made of activated carbon is embedded in the outer wall of the internal frame. The windbreak assembly includes a sliding plate slidably inserted into the inner wall of the housing. The sliding plate is inclined and positioned at the bottom of the side wall of the housing to enclose the area where the suction assembly is located. An electric heating mesh is also embedded in the sliding plate. A windbreak plate is installed on the outer wall of the sliding plate at the location of the electric heating mesh. During use, the suction assembly... When the fan in the chamber operates, it draws gas from the external environment into the chamber. As the outside air enters the chamber, it is purified by a purification plate, ensuring the cleanliness of the gas inside the chamber. Then, due to the presence of a sliding plate, the gas entering the chamber temporarily accumulates between the sliding plate and the chamber. Subsequently, the electric heating grid operates, generating high temperatures to heat the environment inside the chamber. At the same time, the gas drawn into the chamber comes into contact with the electric heating grid, thus delivering the heated gas into the chamber environment. Because the outer end of the electric heating grid has an arc-shaped wind deflector, the wind deflector prevents the hot gas from directly blowing onto the chromatographic column, thereby achieving the effect of heating the chromatographic column stored in the chamber.

[0014] 2. This utility model includes a bearing component and an extrusion component. The bearing component is positioned directly below the extrusion component and is installed at the center of the bottom side wall inside the housing. The bearing component includes a motor fixedly installed on the bottom side wall of the housing. The motor shaft end is also provided with a bearing plate. The bearing plate has six storage slots arranged in a circular array. A clamping component is installed in each storage slot. The extrusion component includes a lifting block embedded in the center of the top side wall inside the housing. An electric push rod is rotatably connected to the bottom side wall of the lifting block. An extrusion plate is provided at the other end of the electric push rod. A second storage slot is provided on the bottom side wall of the extrusion plate. A second clamping component is provided inside the second storage slot. The structure of the first clamping component is the same as that of the second clamping component. Side grooves are provided on both sides of the inner wall of the first storage slot. The first clamping component is installed in the side groove and includes a spring fixed in the side groove. A clamp is installed at the end of the spring. The outer periphery of the holding block is slidably connected to the inner wall of the side groove one. A soft clamp is also provided on the outer wall of the end of the holding block. In use, the bottom of the chromatographic column is aligned with the unused storage groove one on the support plate, and the chromatographic column is pushed into it. At this time, the bottom of the chromatographic column contacts the soft clamp and squeezes the holding block to retract into the side groove one, and also compresses the spring. After the bottom of the chromatographic column is completely inserted into the storage groove one, the spring will extend a short distance and push the holding block to clamp the bottom of the chromatographic column through the soft clamp. In this way, the top of the chromatographic column is pushed into the storage groove two of the extrusion plate in the extrusion assembly. Then, the corresponding electric push rod is activated to move it downward to ensure that the extrusion plate presses on the top of the chromatographic column. When placing a chromatographic column, the motor is started. The motor works and drives the support plate to rotate, so that the next unused storage groove one faces the opening of the box, and the chromatographic column can be placed again. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a chromatographic column constant temperature chamber for a chromatographic instrument. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the structure of a chromatographic column constant temperature chamber for a chromatographic instrument. Figure 2 .

[0018] Figure 3 This is a structural diagram of the box.

[0019] Figure 4 This is a schematic diagram of the windshield assembly.

[0020] Figure 5 This is a structural disassembly diagram of the suction assembly.

[0021] Figure 6 This is a structural disassembly diagram of the supporting components.

[0022] Figure 7 This is a structural disassembly diagram of the extrusion assembly.

[0023] Figure 8 This is a schematic diagram of the extrusion plate.

[0024] The attached diagram lists the components represented by each number as follows: 1-Box body, 101-Box groove, 102-Sliding slot, 103-Bottom groove, 2-Box door, 3-Controller, 4-Suction assembly, 401-Built-in frame, 402-Fixing frame, 403-Fan, 404-Purification plate, 5-Wind baffle assembly, 501-Sliding plate, 501a-Plate groove, 502-Electric heating mesh, 503-Wind baffle, 6-Bearing assembly, 601-Motor, 602-Frame, 603-Bearing plate, 603a-Storage groove one, 603b-Side groove one, 604-Clamping component one, 604a-Soft clamping plate, 604b-Clamping block, 604c-Spring, 7-Extrusion assembly, 701-Lifting block, 702-Electric push rod, 703-Extrusion plate, 703a-Storage groove two, 703b-Side groove two, 704-Clamping component two. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1 Please see Figure 1-5 This utility model is a constant temperature chamber for a chromatographic column, including a chamber body 1, a suction assembly 4 and a wind baffle assembly 5. The suction assembly 4 and the wind baffle assembly 5 can not only heat the gas environment inside the chamber body 1, but also prevent hot air from blowing directly onto the chromatographic column.

[0027] Specifically, the bottom of the left and right side walls of the box 1 are provided with box grooves 101, and the inner wall of the box 1 is provided with sliding slots 102. The suction assembly 4 includes an inner frame 401 embedded in the box groove 101, and a fixing frame 402 is installed in the inner frame 401. A fan 403 is installed in the fixing frame 402. A purification plate 404 is embedded in the side wall of the inner frame 401 located outside the box 1.

[0028] Furthermore, the windproof assembly 5 includes a sliding plate 501 that is slidably inserted into the sliding slot 102, and a plate groove 501a is provided on the side wall of the sliding plate 501. An electric heating mesh 502 is installed in the plate groove 501a, and a windproof plate 503 is fixedly provided on the outside of the plate groove 501a. The sliding plate 501 is inclined and set at the bottom of the side wall of the box 1 to enclose the area where the suction assembly 4 is located.

[0029] The operation process of this embodiment is as follows: During use, the fan 403 in the suction assembly 4 operates, drawing gas from the external environment of the housing 1 into the housing 1. As the outside air enters the housing 1, it is purified by the purification plate 404, ensuring the cleanliness of the gas inside the housing 1. Then, due to the presence of the sliding plate 501, the gas entering the housing 1 temporarily accumulates between the sliding plate 501 and the housing 1. Then, the electric heating grid 502 operates, generating high temperatures to heat the environment inside the housing 1. The gas drawn into the chamber 1 will come into contact with the electric heating grid 502, thereby sending the heated gas into the environment inside the chamber 1. Since the outer end of the electric heating grid 502 is equipped with an arc-shaped wind baffle 503, the wind baffle 503 avoids the high-heat gas from blowing directly onto the chromatographic column, thereby achieving the effect of heating the chromatographic column stored in the chamber 1. The two suction components 4 can work simultaneously or not simultaneously. When working simultaneously, one suction component 4 is used to draw the external ambient gas into the chamber 1, and the other is used to draw the gas out of the environment inside the chamber 1 to achieve gas pressure balance.

[0030] Example 2 Please see Figure 6-8 Based on Example 1, a support component 6 and a compression component 7 are also provided, which can individually store multiple chromatographic columns of different heights and diameters.

[0031] Specifically, a bottom groove 103 is formed at the center of the bottom inner wall of the housing 1. The bearing assembly 6 includes a frame 602 fixedly installed in the bottom groove 103, and a motor 601 is installed in the frame 602. A bearing plate 603 is installed on the shaft end of the motor 601. Six storage slots 603a arranged in a circular array are formed on the bearing plate 603. Side slots 603b are formed on the inner walls of both sides of the storage slots 603a. Clamping members 604 are installed in the side slots 603b. 7 includes a lifting block 701 that is hoisted onto the inner wall of the top of the housing 1. An electric push rod 702 is rotatably mounted on the bottom side wall of the lifting block 701. An extrusion plate 703 is mounted on the bottom end of the electric push rod 702. A second storage groove 703a is provided on the extrusion plate 703. Side grooves 703b are provided on the inner walls of both sides of the second storage groove 703a. A clamping member 704 is installed in the side groove 703b. The first storage groove 703a and the second storage groove 703a are arranged vertically opposite each other.

[0032] Furthermore, clamping member 1 604 and clamping member 2 704 have the same structure. Clamping member 1 604 includes a clamping block 604b slidably disposed in side groove 1 603b. One outer wall of clamping block 604b is connected to the inner wall of side groove 1 603b by spring 604c, and a soft clamping plate 604a is provided on the other side.

[0033] The operation process of this embodiment is as follows: In use, align the bottom of the chromatographic column with the unused storage slot 603a on the support plate 603, and push the chromatographic column into it. At this time, the bottom of the chromatographic column contacts the flexible clamping plate 604a, and squeezes the clamping block 604b into the side groove 603b, which also compresses the spring 604c. After the bottom of the chromatographic column is completely inside the storage slot 603a, the spring 604c will extend a short distance and push the clamping block 604b through the flexible clamping plate 603a. 04a clamps the bottom of the chromatographic column, thus pushing the top of the column into the storage slot 703a of the extrusion plate 703 in the extrusion assembly 7. Then, the corresponding electric push rod 702 is activated to move it downward to ensure that the extrusion plate 703 presses on the top of the chromatographic column. When placing a chromatographic column, the motor 601 is activated. The motor 601 works and drives the support plate 603 to rotate, so that the next idle storage slot 603a faces the opening of the box 1, and the chromatographic column can be placed again.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A chromatographic column constant temperature chamber for a chromatographic instrument, comprising a chamber body (1), wherein a door (2) is installed on the front side wall of the chamber body (1), and a controller (3) is embedded in the door (2); characterized in that: Suction components (4) are embedded in the bottom of the left and right side walls of the box (1). The suction components (4) include an inner frame (401) embedded in the side wall of the box (1), and a fan (403) is installed in the inner frame (401). A windbreak component (5) is installed on the inner side wall of the box (1) corresponding to the suction components (4). The windbreak component (5) includes a sliding plate (501) set inside the box (1), and an electric heating mesh (502) is embedded in the sliding plate (501). A windbreak plate (503) is installed on the outer side of the electric heating mesh (502) and on the outer wall of the sliding plate (501). A bearing component (6) is provided at the bottom of the inner side wall of the box (1). An extrusion assembly (7) is installed directly above the bearing assembly (6) and on the top inner wall of the box (1). The bearing assembly (6) includes a motor (601) installed on the bottom inner wall of the box (1), and a bearing plate (603) is installed on the shaft end of the motor (601). A clamping component (604) is embedded in the bearing plate (603). The extrusion assembly (7) includes a lifting block (701) fixed on the top inner wall of the box (1), and an electric push rod (702) is rotatably installed on the bottom side wall of the lifting block (701). An extrusion plate (703) is installed on the bottom end of the electric push rod (702), and a clamping component (704) is embedded in the extrusion plate (703).

2. The chromatographic column constant temperature oven for a chromatogram according to claim 1, characterized in that, The bottom of the left and right side walls of the box (1) is provided with a box groove (101), and the inner side wall of the box (1) is provided with a sliding slot (102), and the center of the bottom inner wall of the box (1) is provided with a bottom groove (103).

3. A chromatographic column constant temperature oven for a chromatogram according to claim 2, characterized in that, The built-in frame (401) is embedded in the inside of the box groove (101), and a fixing frame (402) is installed inside the built-in frame (401). The built-in frame (401) is connected to the fan (403) through the fixing frame (402), and a purification plate (404) is embedded in the side wall of the built-in frame (401) located outside the box body (1).

4. A chromatographic column constant temperature oven for a chromatogram according to claim 2, characterized in that, The sliding plate (501) is slidably inserted into the sliding slot (102). The sliding plate (501) has a plate groove (501a) and the electric heating mesh (502) is embedded in the plate groove (501a). The sliding plate (501) is set at the bottom of the side wall of the box (1) with an inclined structure to enclose the area where the suction assembly (4) is located.

5. A chromatographic column constant temperature oven for a chromatogram according to claim 2, characterized in that, The bottom groove (103) is equipped with a frame (602), and the motor (601) is fixedly installed inside the frame (602). The upper side wall of the bearing plate (603) is provided with six storage slots (603a) arranged in a ring array structure, and the inner walls on both sides of the storage slots (603a) are provided with side slots (603b).

6. A chromatographic column constant temperature oven for a chromatogram according to claim 1, characterized in that, The clamping member 1 (604) includes a clamping block (604b) slidably disposed in the side groove 1 (603b), and one side of the outer wall of the clamping block (604b) is connected to the inner wall of the side groove 1 (603b) by a spring (604c), and a soft clamping plate (604a) is provided on the other side.

7. A chromatographic column constant temperature oven for a chromatogram according to claim 1, characterized in that, The extrusion plate (703) has a second storage groove (703a) and a second side groove (703b) on the inner walls of both sides of the second storage groove (703a). A second clamping member (704) is installed in the second side groove (703b). The first storage groove (603a) and the second storage groove (703a) are arranged vertically opposite each other. The first clamping member (604) and the second clamping member (704) have the same structure.

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