CN220969152U - Multifunctional chromatography cabinet - Google Patents

Abstract

The utility model discloses a multifunctional chromatography cabinet, which belongs to the technical field of chromatography cabinets and comprises a cabinet body, two cabinet doors arranged at the opening of the cabinet body, and further comprises: lifting plates, shelves for storing articles; a connection mechanism for moving the shelf back and forth along the lifting plate; the support is provided with a clamping device for clamping and installing the chromatographic column; the adjusting mechanism is used for installing the bracket and adjusting the position of the bracket to install the chromatographic column; the scheme is convenient for the staff to take the articles close to the inner side of the shelf, avoids the operations of picking and the like when the staff stretches into the cabinet body, greatly reduces the influence of the fluctuation of the cabinet body temperature, and also greatly avoids the condition of bumping or damaging the articles on the cabinet body; this scheme will originally the workman need move the cabinet outside at the operation of cabinet body installation chromatographic column, made things convenient for staff's installation work to also avoided the lower condition that can cause staff's discomfort of cabinet body temperature, the practicality is strong.

Description

Multifunctional chromatography cabinet

Technical Field

The utility model belongs to the technical field of chromatography cabinets, and particularly relates to a multifunctional chromatography cabinet.

Background

The chromatography refrigerator, also called chromatography cabinet, is a special purpose low temperature cabinet specially developed for biochemical chromatography experiments, and can also be used for other experiments requiring low temperature environment or for article refrigeration. The chromatographic cabinet controls the temperature in the cabinet body to be at a set temperature by utilizing a refrigerating system and a temperature control system.

In the process of carrying out chromatography experiments, the existing chromatography cabinet is generally internally installed in the cabinet in the process of installing a chromatography column, but the space in the cabinet is limited, the temperature is low, and the installation of workers is difficult and easy to cause discomfort; moreover, the articles close to the inner side on the shelf in the chromatography cabinet are not easy to place and take out, and a worker is required to stretch the hands into the chromatography cabinet to carry out operations such as picking, time and labor are wasted, the temperature fluctuation in the cabinet is easy to be large due to long time spent, and the stability of chromatography experiments is influenced; and the articles on the shelf are easy to knock down or damage, and the use effect is poor.

Therefore, it is necessary to provide a multifunctional chromatography cabinet to solve the above technical problems.

Disclosure of utility model

The utility model aims to provide a multifunctional chromatography cabinet so as to solve the technical problems.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a multi-functional chromatography cabinet, includes the cabinet body and locates two cabinet doors of its opening part, still includes:

the lifting plates are arranged in the cabinet body and are provided with a plurality of lifting plates;

the shelf is arranged on the lifting plate and used for storing articles;

the connecting mechanism is respectively connected with the shelf and the lifting plate and is used for enabling the shelf to move back and forth along the lifting plate;

The supports are positioned on the inner wall of the cabinet body and provided with a plurality of supports, and clamping devices are arranged on the supports and used for clamping and installing the chromatographic column;

The adjusting mechanism is arranged on the inner wall of the cabinet body and used for adjusting the position of the bracket.

Further, bar spout has been seted up to lifter plate's both sides inner wall, coupling mechanism includes:

The limiting strip is arranged on the side wall of the shelf and is in sliding fit with the strip-shaped chute, and is used for driving the shelf to move along the strip-shaped chute;

And one end of the elastic piece is connected with the limiting strip, and the other end of the elastic piece is connected with the inner wall of the strip-shaped chute.

Further, the inner side wall of the lifting plate is provided with a groove matched with the shelf, and two ends of the groove are communicated with the strip-shaped sliding grooves on two sides and used for supporting the shelf.

Further, the adjustment mechanism includes:

the sliding rails are arranged on the inner wall of the cabinet body and are provided with at least two sliding rails;

The bearing strips are arranged in the sliding rail in a sliding manner, two ends of the support are respectively connected with the two bearing strips, and the bearing strips are used for driving the support to move towards the inside and the outside of the cabinet body along the sliding rail.

Further, a plurality of positioning holes are formed in one of the bearing strips, and positioning pins matched with the positioning holes are arranged on the sliding rail at corresponding positions of the bearing strips.

Further, the clamping device includes:

The fixing clamp is nested on the bracket, and is connected with a lifting screw rod in a threaded manner and used for fixing the fixing clamp on the bracket;

The clamping plate is arranged on the fixing clamp and used for clamping the chromatographic column, and a clamping screw rod is connected between the clamping plate and the fixing clamp in a threaded manner and used for adjusting the distance between the clamping plate and the fixing clamp.

Further, the method further comprises the following steps:

The rotating rods are arranged in the cabinet body and are provided with four rotating rods, the upper end and the lower end of each rotating rod are connected with limiting rods in a rotating mode, and the end parts of the limiting rods are connected with the inner wall of the cabinet body;

And the limiting assembly is arranged on the lifting plate and used for installing the lifting plate and the shelf at different positions on the rotating rod.

Further, two towards cabinet body opening part evenly be provided with a plurality of locating strips on the dwang, spacing subassembly includes:

The sleeve seat is provided with four sleeve holes which are arranged on the outer wall of the lifting plate and vertically penetrate through the sleeve seat to be movably matched with the rotating rod;

the positioning grooves and the strip-shaped notches are respectively arranged on the two sleeve seats on the outward side of the lifting plate, and are simultaneously communicated with the sleeve holes and matched with the positioning strips.

Further, a handle is arranged at one outward end of the shelf and used for driving the shelf to move along the lifting plate.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the scheme, the shelf is pulled outwards, the partition plate can move outwards along the lifting plate through the connecting mechanism, so that the shelf is pulled out of the cabinet body, then articles or small chromatographic supports can be placed, and articles on the inward position on the shelf can be placed conveniently; after the placement, the shelf can drive the articles on the shelf to return to the initial position in the cabinet body through the connecting mechanism. When the shelf is required to be taken to be close to an inner article, the shelf is pulled outwards in the same way, and the inner article of the shelf is gradually moved out of the cabinet body through the action of the connecting mechanism, so that a worker can conveniently take the inner article of the shelf, the worker is prevented from stretching into the cabinet body to draw out the inner article, time and labor are saved, the influence of the fluctuation of the temperature of the cabinet is greatly reduced, and the stability of a subsequent chromatography experiment is avoided. And the situation that articles on the shelf are knocked over or damaged when the articles close to the inner side of the shelf are placed and taken is also greatly avoided, and the use effect is good.

2. When the chromatographic column is installed, the position of the bracket is adjusted through the adjusting mechanism, so that the bracket and the clamping device on the bracket can move outwards and are positioned outside the cabinet body, and then the chromatographic column is installed through the clamping device; after the installation is finished, the clamping device drives the chromatographic column to enter the cabinet body. The operation that the original worker needs to install the chromatographic column on the cabinet body is moved to the outside of the cabinet body, so that the installation work of the staff is greatly facilitated, the installation is simpler and more convenient, the limitation is small, the installation efficiency is high, and the fluctuation of the temperature of the cabinet body can be reduced due to the short installation time; and also avoided the lower condition that can cause staff's discomfort of cabinet body temperature, the practicality is strong.

3. According to the lifting plate, the lifting plate is arranged on the rotating rod through the limiting assembly, and the lifting plate and the shelf are adjusted to be at different height positions on the rotating rod under the cooperation of the lifting plate and the rotating rod, so that the height of the shelf can be conveniently adjusted, the distance between two adjacent shelves can be adjusted, the requirements of different articles in placing can be met, the diversity of storage is improved, and the efficiency is improved when the articles with different heights are stored.

Drawings

FIG. 1 is a schematic view of the internal structure of a cabinet body after the cabinet door is opened;

FIG. 2 is a schematic view of the mounting structure of each lifter plate and shelf of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A;

FIG. 4 is a schematic view showing the structure of the shelf of the present utility model in a state of being drawn out along the lifting plate;

FIG. 5 is a schematic view showing the structure of the shelf of the present utility model in a state where the shelf is drawn out and the bracket and the clamping device are removed;

FIG. 6 is an enlarged schematic view of the structure of FIG. 5B;

FIG. 7 is a schematic view of a clamping device on a bracket according to the present utility model;

fig. 8 is an enlarged schematic view of fig. 7 at C.

The reference numerals in the figures illustrate:

1. A cabinet body; 2. a lifting plate; 3. a shelf; 4. a connecting mechanism; 41. a limit bar; 42. an elastic member; 5. a bracket; 6. a clamping device; 61. a fixing clamp; 62. lifting screw rods; 63. a clamping plate; 64. clamping a screw; 7. an adjusting mechanism; 71. a slide rail; 72. a carrier strip; 73. positioning holes; 8. a strip-shaped chute; 9. a groove; 10. a rotating lever; 11. a limit rod; 12. a limit component; 121. a sleeve seat; 122. trepanning; 123. a positioning groove; 124. a strip-shaped notch; 13. a positioning strip; 14. a cabinet door; 15. and (5) a handle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

Referring to fig. 1-2, fig. 4-5 and fig. 7, a multifunctional chromatography cabinet includes a cabinet body 1, two cabinet doors 14 disposed at an opening of the cabinet body, and further includes: the lifting plate 2 is arranged in the cabinet body 1 and provided with a plurality of lifting plates; a shelf 3 arranged on the lifting plate 2 for storing articles; a connection mechanism 4 connected to the shelf 3 and the lifting plate 2, respectively, for moving the shelf 3 back and forth along the lifting plate 2; the brackets 5 are positioned on the inner wall of the cabinet body 1 and provided with a plurality of clamping devices 6 which are used for clamping and installing the chromatographic column; the adjusting mechanism 7 is arranged on the inner wall of the cabinet body 1 and is used for adjusting the position of the bracket 5.

During the use, can place some article and small-size chromatography support on the shelf 3, during the operation, open cabinet door 14 on one side of shelf 3 at first after, then outwards pulling shelf 3, the baffle can be through coupling mechanism 4 along lifter plate 2 outwards removal, even make shelf 3 take out in the cabinet body 1 this moment, then can place article or small-size chromatography support, very big convenience is put the article on the inward position on the shelf 3. After the hands are loosened, the shelf 3 drives the articles thereon to return to the initial position through the connecting mechanism 4, namely, the articles return to the cabinet body 1 along the lifting plate 2, and thus, the placement of the articles on the shelf 3 is completed. When needs take the shelf 3 on the article of being close to the interior, the same reason outwards pulls shelf 3 this moment, can outwards remove along lifter plate 2 through the effect of coupling mechanism 4 shelf 3 for shelf 3 is close to the interior article of being close to the interior and shifts out in the cabinet body 1 gradually, as shown in fig. 5, then make things convenient for the staff to the shelf 3 to be close to the interior article take, avoided the staff to reach and draw operation such as getting into in the cabinet body 1, labour saving and time saving, the time of taking and placing the article is short, greatly reduced the influence of cabinet body 1 temperature fluctuation, avoid influencing the stability of follow-up chromatography experiment. And the situation that articles on the shelf 3 are knocked over or damaged when the articles are placed and taken by the shelf 3 close to the inner side is also greatly avoided, and the use effect is good.

When the chromatographic column is installed, the position of the bracket 5 is adjusted by the adjusting mechanism 7, so that the bracket 5 and the clamping device 6 thereon can be moved outwards, namely, the clamping device 6 is positioned outside the cabinet body 1, and then the chromatographic column is installed by the clamping device 6. After the installation, the clamping device 6 drives the chromatographic column to enter the cabinet body 1 through the adjusting mechanism 7, and the installation of the chromatographic column is completed. From the above, the operation that the original worker needs to install the chromatographic column on the cabinet body 1 is moved out of the cabinet body 1, so that the installation work of the worker is greatly facilitated, the installation is simpler and more convenient, the limitation is small, the installation efficiency is high, and the temperature fluctuation of the cabinet body 1 can be reduced due to the short installation time; and also avoided cabinet body 1 temperature lower can cause the uncomfortable condition of staff, the practicality is strong.

The outward one end of shelf 3 is provided with handle 15 for drive shelf 3 along lifter plate 2 removes, drives the removal of shelf 3 drawable through pulling handle 15 for deposit and take out the speed of article and become fast, reduce the time of opening cabinet door 2, be favorable to reducing temperature fluctuation, avoid influencing the stability of chromatography experiment.

In this embodiment, preferably, referring to fig. 4, the inner walls of two sides of the lifting plate 2 are provided with a bar-shaped chute 8, and the connecting mechanism 4 includes: the limiting bar 41 is arranged on the side wall of the shelf 3 and is in sliding fit with the strip-shaped chute 8, and is used for driving the shelf 3 to move along the strip-shaped chute 8; the elastic member 42, one end links to each other with limit bar 41, another end links to each other with the inner wall of the bar chute 8, the elastic member 42 in the application adopts the spring, the length of elastic member 42 under the natural state adds the length of limit bar 41 to equal the length of shelf 3. When the shelf 3 is pulled, the shelf 3 drives the limit bar 41 to slide along the bar-shaped chute 8, and when the shelf 3 moves outwards under the action of external force, the limit bar 41 moves along the bar-shaped chute 8 and stretches the elastic piece 42; after the shelf 3 is not subjected to external force, the limiting bar 41 is driven to slide inwards along the bar-shaped chute 8 to an initial position by the resilience force of the elastic piece 42, namely, the shelf 3 is driven to return to the initial position.

In this embodiment, preferably, referring to fig. 4, a groove 9 adapted to the shelf 3 is formed on the inner side wall of the lifting plate 2, and two ends of the groove 9 are communicated with the bar-shaped sliding grooves 8 on two sides for supporting the shelf 3. When the shelf 3 is in the initial position, one end of the inner side of the shelf 3 is positioned in the groove 9 to support the shelf 3, so that the shelf 3 can stably place articles, and the stable state of the articles and the small chromatographic rack is ensured.

In this embodiment, referring to fig. 1 and 5-7, preferably, the adjusting mechanism 7 includes: the slide rail 71 is arranged on the inner wall of the cabinet body 1 and is provided with at least two slide rails; the bearing bars 72 are slidably disposed in the sliding rail 71, two ends of the bracket 5 are respectively connected with the two bearing bars 72, and the bearing bars 72 are used for driving the bracket 5 to move towards the inside and the outside of the cabinet body 1 along the sliding rail 71. One of the bearing bars 72 is provided with a plurality of positioning holes 73, and the slide rail 71 at the corresponding position of the bearing bar is provided with positioning pins 74 matched with the positioning holes 73.

After the locating pin 74 fixed with the locating hole 73 is taken out, the bracket 5 can be driven to move, the bracket 5 can drive the bearing strip 72 to slide along the sliding rail 71, the bracket 5 can slide out of the cabinet body 1 at the moment, namely, the clamping device 6 on the bracket 5 moves outside the cabinet body 1, then the locating hole 73 on the corresponding bearing strip 72 at the moment is fixed through the locating pin 74, namely, the positions of the bracket 5 and the clamping device 6 are fixed, then the chromatographic column can be conveniently installed through the clamping device 6, after the installation is finished, the fixing of the locating pin 74 is released, the chromatographic column on the bracket 5 and the clamping device 6 moves into the cabinet body 1 along the sliding rail 71 through the bearing strip 72, and then the chromatographic column is fixed, so that the installation of the chromatographic column is finished, and the chromatographic column is simple and convenient to operate, and saves time and labor.

In this embodiment, referring to fig. 7-8, preferably, the clamping device 6 includes: the fixing clamp 61 is nested on the bracket 5, and the fixing clamp 61 is connected with a lifting screw 62 in a threaded manner and is used for fixing the fixing clamp 61 on the bracket 5; the clamping plate 63 is arranged on the fixing clamp 61 and used for clamping the chromatographic column, and a clamping screw 64 is connected between the clamping plate 63 and the fixing clamp 61 in a threaded manner and used for adjusting the distance between the clamping plate 63 and the fixing clamp 61. The fixing clip 61 can be moved up and down along the bracket 5, and the fixing clip 61 can be fixed to the bracket 5 by tightening the lifting screw 62 after the fixing clip 61 is moved to a predetermined height, and the height of the fixing clip 61 can be adjusted as needed. The distance between the clamping plate 63 and the fixing clamp 61 is larger at the beginning, after the chromatographic column is placed between the clamping plate 63 and the fixing clamp 61, the clamping screw 64 is screwed down, so that the clamping plate 63 can clamp and fix the chromatographic column on the fixing clamp 61, and the clamping and fixing of the chromatographic column are completed. And the distance between the clamping plate 63 and the fixing clamp 61 can be adjusted through chromatographic columns with different diameters, so that the application range is wide, and different requirements are met.

Embodiment two:

On the basis of the first embodiment, please refer to fig. 1-3, further comprising: the rotating rods 10 are arranged in the cabinet body 1 and are provided with four, the upper end and the lower end of each rotating rod are respectively connected with a limiting rod 11, and the end parts of the limiting rods 11 are connected with the inner wall of the cabinet body 1; and the limiting assembly 12 is arranged on the lifting plate 2 and is used for installing the lifting plate 2 and the shelf 3 at different positions on the rotating rod 10. Lifting plate 2 accessible spacing subassembly 12 is installed at dwang 10 to under the cooperation with rotatable dwang 10, adjust lifting plate 2 and shelf 3 different high position on dwang 10, can be convenient adjust the height of shelf 3, and adjust the distance between two adjacent shelves 3, can satisfy the demand when different article are put, improve the variety of storing, the flexibility is strong. The condition of the traditional screw used for adjusting the height of the shelf 3 is greatly simplified, and the storage of articles with different heights is satisfied and the efficiency is improved.

In this embodiment, as shown in fig. 2 to 4, a plurality of positioning strips 13 are uniformly disposed on two rotating rods 10 facing to the opening of the cabinet 1, and the limiting assembly 12 includes: the sleeve seat 121 is provided with four sleeve holes 122 which are arranged on the outer wall of the lifting plate 2 and vertically penetrate through the sleeve seat to be movably matched with the rotating rod 10; the positioning groove 123 and the strip notch 124 are respectively arranged on the two sleeve seats 121 on the outward side of the lifting plate 2, are simultaneously communicated with the sleeve holes 122 and are matched with the positioning strips 13, the strip notch 124 and the positioning groove 123 form a certain angle, when the sleeve seats 121 are fixed on the rotating rod 10, the positioning strips 13 on the rotating rod 10 are positioned in the positioning grooves 123, when the heights of the sleeve seats 121, the lifting plate 2 and the shelf 3 are required to be adjusted, the lifting plate 2 and the shelf 3 can be driven to move upwards, the sleeve seats 121 are driven to move upwards along the rotating rod 10, when the positioning grooves 123 on the sleeve seats 121 are separated from the positioning strips 13, the rotating rod 10 is rotated along the limiting rod 11, when the positioning strips 13 are rotated to the positions of the strip notch 124 on the sleeve seats 121, the positioning strips 13 are moved, different heights of the sleeve seats 121 on the rotating rod 10 can be adjusted, namely the heights of the lifting plate 2 and the shelf 3 can be adjusted, after the adjustment, the rotating rod 10 is rotated along the limiting rod 11, the positioning strips 123 are positioned in the positions of the positioning strips 123, and the height of the shelf 3 can be adjusted, and the positioning strips 123 are easy to install, and the positioning strips are positioned in the positions of the lifting plate 2 and the positioning grooves 3.

It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the present utility model, and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application.

It should be noted that, in the embodiment of the present utility model, directional indications such as up, down, left, right, front, and rear … … are referred to merely for explaining a relative positional relationship, a movement condition, and the like between the components in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, "a plurality of" means two or more. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Claims (9)

1. The utility model provides a multi-functional chromatography cabinet, includes cabinet body (1) and locates two cabinet doors (14) of its opening part, its characterized in that still includes:

The lifting plates (2) are arranged in the cabinet body (1) and are provided with a plurality of lifting plates;

The shelf (3) is arranged on the lifting plate (2) and is used for storing articles;

The connecting mechanism (4) is respectively connected with the shelf (3) and the lifting plate (2) and is used for enabling the shelf (3) to move forwards and backwards along the lifting plate (2);

The supports (5) are positioned on the inner wall of the cabinet body (1) and provided with a plurality of clamping devices (6) which are used for clamping and installing the chromatographic column;

The adjusting mechanism (7) is arranged on the inner wall of the cabinet body (1) and used for adjusting the position of the bracket (5).

2. The multifunctional chromatography cabinet according to claim 1, wherein the inner walls of the two sides of the lifting plate (2) are provided with strip-shaped sliding grooves (8), and the connecting mechanism (4) comprises:

The limiting strip (41) is arranged on the side wall of the shelf (3) and is in sliding fit with the strip-shaped chute (8) and is used for driving the shelf (3) to move along the strip-shaped chute (8);

And one end of the elastic piece (42) is connected with the limit strip (41), and the other end of the elastic piece is connected with the inner wall of the strip-shaped chute (8).

3. The multifunctional chromatography cabinet according to claim 2, wherein the inner side wall of the lifting plate (2) is provided with a groove (9) matched with the shelf (3), and two ends of the groove (9) are communicated with the strip-shaped sliding grooves (8) on two sides and are used for supporting the shelf (3).

4. A multifunctional chromatography cabinet according to claim 1, characterized in that said adjusting mechanism (7) comprises:

the sliding rails (71) are arranged on the inner wall of the cabinet body (1) and are at least provided with two sliding rails;

The bearing strips (72) are arranged in the sliding rail (71) in a sliding manner, two ends of the support (5) are respectively connected with the two bearing strips (72), and the bearing strips (72) are used for driving the support (5) to move towards the inside and the outside of the cabinet body (1) along the sliding rail (71).

5. The multifunctional chromatography cabinet according to claim 4, wherein one of the bearing strips (72) is provided with a plurality of positioning holes (73), and the slide rail (71) at the corresponding position of the bearing strip is provided with a positioning pin (74) matched with the positioning holes (73).

6. A multifunctional chromatography cabinet according to claim 1, characterized in that the clamping means (6) comprise:

The fixing clamp (61) is nested on the bracket (5), and the fixing clamp (61) is connected with a lifting screw (62) in a threaded manner and is used for fixing the fixing clamp (61) on the bracket (5);

Clamping plate (63) set up in on fixation clamp (61) for carry out the centre gripping to the chromatographic column, threaded connection has clamping screw (64) between clamping plate (63) and fixation clamp (61), is used for the adjustment clamping plate (63) with distance between fixation clamp (61).

7. The multi-purpose chromatography cabinet of claim 1, further comprising:

the rotating rods (10) are arranged in the cabinet body (1) and are provided with four limiting rods (11) which are rotatably connected at the upper end and the lower end of the rotating rods, and the end parts of the limiting rods (11) are connected with the inner wall of the cabinet body (1);

And the limiting assembly (12) is arranged on the lifting plate (2) and is used for installing the lifting plate (2) and the shelf (3) at different positions on the rotating rod (10).

8. The multifunctional chromatography cabinet according to claim 7, wherein a plurality of positioning strips (13) are uniformly arranged on two rotating rods (10) facing the opening of the cabinet body (1), and the limiting assembly (12) comprises:

The sleeve seats (121) are provided with four sleeve holes (122) which are arranged on the outer wall of the lifting plate (2) and vertically penetrate through the sleeve holes in movable fit with the rotating rod (10);

The positioning grooves (123) and the strip-shaped notches (124) are respectively arranged on the two sleeve seats (121) on the outward side of the lifting plate (2), and are simultaneously communicated with the sleeve holes (122) and are matched with the positioning strips (13).

9. A multifunctional chromatography cabinet according to claim 1, characterized in that a handle (15) is provided at the outward end of the shelf (3) for driving the shelf (3) to move along the lifting plate (2).