Adjustable supporting device for biochemical experiment

Abstract

The utility model relates to the technical field of biochemical experiment instruments, in particular to an adjustable supporting device for biochemical experiments, which comprises a base, the base comprises T-shaped frames, a cross beam is clamped between the T-shaped frames, a plurality of mounting frames are slidably mounted on the cross beam, and a flask frame is fixedly mounted below each mounting frame. The eccentric handle is rotated upwards to drive the pull rod to move downwards, so that the sliding block and the sliding sleeve clamp the cross beam, the installation frame is fixed, the eccentric handle is rotated downwards, locking is relieved, the installation frame can slide along the first guide groove, the fixing mode of the installation frame is simplified, and fixing and unlocking are faster than those of a traditional mode. The flask frame is arranged below the sliding sleeve, so that the flask can move along with the mounting frame, the adjustment is more convenient, and the error probability can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of biochemical experimental instrument technology, specifically an adjustable support device for biochemical experiments. Background Technology

[0002] In biochemical experiments, when it is necessary to separate the components of a mixture, chromatography is usually used. The sample is evenly distributed on the gel bed of the chromatography column, and the components are eluted by the eluent, which causes the components to move along the gel column. A flask is placed at the bottom of the chromatography column to collect the eluent after use.

[0003] In practical applications, multiple chromatography columns are typically used for simultaneous chromatography. Multiple iron frames are usually slidably mounted on the same square steel tube, secured to the tube with bolts. Butterfly clamps are installed on the iron frames to hold the chromatography columns. Adjusting the column spacing requires loosening the screws and sliding the iron frames laterally. During this process, the flasks must be supported to ensure synchronized movement and prevent tilting, which could lead to eluent leakage. After adjustment, the screws must be tightened. The adjustment process is relatively cumbersome and prone to errors. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an adjustable support device for biochemical experiments.

[0005] The technical solution of this utility model is:

[0006] An adjustable support device for biochemical experiments, comprising:

[0007] The base includes a T-shaped frame, with a crossbeam snapped between the T-shaped frames. Several mounting brackets are slidably mounted on the crossbeams, and a flask rack is fixedly mounted below each mounting bracket.

[0008] Preferably, the bottom of the crossbeam is provided with a first guide groove that runs through it axially, the inner side of the head of the T-shaped frame is engaged with the first guide groove by a locking block, and the outer side of the head of the T-shaped frame is fixedly connected to the crossbeam by fixing bolts.

[0009] Preferably, the mounting bracket includes a sliding sleeve, a slider is provided inside the sliding sleeve, the slider is slidably mounted in a first guide groove, the sliding sleeve is slidably mounted outside the crossbeam, and a butterfly clip is slidably mounted on the top surface of the sliding sleeve via a guide rod.

[0010] Preferably, a pull rod is vertically threaded to the middle of the slider, and the head of the pull rod is rotatably connected to an eccentric handle through the sliding sleeve. A first elastic element is provided between the eccentric handle and the sliding sleeve.

[0011] Preferably, the flask rack includes two guide frames, which are fixedly installed at the bottom of the sliding sleeve and symmetrical to the eccentric handle. The guide frames are T-shaped, and the bottom surface of the guide frames is higher than the bottom surface of the T-shaped frame.

[0012] Preferably, two guide frames are slidably mounted on the inner bottom sides of their two guide frames. Each guide frame has a positioning hole running vertically through its center for placing a flask. An adjusting screw is axially provided on the outer center of each guide frame.

[0013] Preferably, horizontal plates are fixedly installed on the upper and lower sides of the guide frame end, and a knob is rotatably installed in the middle of the two horizontal plates. The adjusting screw passes through the two horizontal plates and is threadedly connected to the knob.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention uses an eccentric handle that rotates upward to drive a pull rod downward, causing the slider and sliding sleeve to clamp the crossbeam and thus fix the mounting bracket. Rotating the eccentric handle downward releases the lock, allowing the mounting bracket to slide along the first guide groove. This simplifies the mounting bracket fixing method and makes fixing and unlocking faster than traditional methods. By setting a flask holder below the sliding sleeve, the flask can move with the mounting bracket, making adjustment more convenient and reducing the probability of errors. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the base structure in this utility model;

[0018] Figure 3 This is a schematic diagram of the mounting bracket and flask rack structure in this utility model;

[0019] Figure 4 This is a second schematic diagram of the mounting bracket and flask rack structure in this utility model;

[0020] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0021] The meanings of the labels in the diagram are as follows:

[0022] 1. Base; 11. T-shaped frame; 12. Clamping block; 13. Crossbeam; 14. First guide groove; 15. Fixing bolt;

[0023] 2. Mounting bracket; 21. Slider; 22. Pull rod; 23. Sliding sleeve; 24. Guide rod; 25. First elastic element; 26. Eccentric handle; 27. Connecting shaft; 28. Butterfly clamp;

[0024] 3. Flask rack; 31. Guide rack; 32. Horizontal plate; 33. Slide plate; 34. Positioning hole; 35. Adjusting screw; 36. Knob. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1:

[0027] Please see Figure 1-5 The present invention will describe the above technical solution in detail through the following embodiments:

[0028] An adjustable support device for biochemical experiments, comprising:

[0029] The base 1 includes a T-shaped frame 11, with a crossbeam 13 snapped between the T-shaped frames 11. Several mounting brackets 2 are slidably mounted on the crossbeam 13, and a flask rack 3 is fixedly mounted below each mounting bracket 2.

[0030] T-shaped frame 11 is made of welded metal plates.

[0031] The bottom of the crossbeam 13 is provided with a first guide groove 14 that runs through it axially. The inner side of the head of the T-shaped frame 11 is engaged with the first guide groove 14 by a locking block 12, and the outer side of the head of the T-shaped frame 11 is fixedly connected to the crossbeam 13 by a fixing bolt 15.

[0032] The engagement of the locking block 12 with the first guide groove 14 reduces the wobbling of the base 1. After releasing the fixing bolts 15, it is convenient to adjust the number of mounting brackets 2 and flask racks 3.

[0033] Mounting bracket 2 includes a sliding sleeve 23, a slider 21 is provided inside the sliding sleeve 23, the slider 21 is slidably installed in the first guide groove 14, the sliding sleeve 23 is slidably installed outside the crossbeam 13, and a butterfly clip 28 is slidably installed on the top surface of the sliding sleeve 23 through the guide rod 24.

[0034] The guide rod 24 is welded to one side of the top surface of the sliding sleeve 23. The butterfly clamp 28 is a known double-sided butterfly clamp made of aluminum or plastic. The butterfly clamp 28 is used to hold the chromatography column.

[0035] A pull rod 22 is vertically threaded in the middle of the slider 21. The head of the pull rod 22 passes through the sliding sleeve 23 and is rotatably connected to an eccentric handle 26. A first elastic element 25 is provided between the eccentric handle 26 and the sliding sleeve 23.

[0036] The first elastic element 25 may be a rubber pad, used to increase the friction of the eccentric handle 26.

[0037] The eccentric handle 26 and the head of the pull rod 22 are rotatably connected via the connecting shaft 27.

[0038] Rotating the eccentric handle 26 upwards can drive the pull rod 22 to move downwards, thereby driving the slider 21 and the sliding sleeve 23 to approach each other, thus increasing the friction between the slider 21 and the sliding sleeve 23 and the crossbeam 13, and fixing the slider 21 and the sliding sleeve 23 to the crossbeam 13.

[0039] Rotating the eccentric handle 26 downwards can drive the pull rod 22 to move upwards, thereby reducing the friction between the slider 21 and the sliding sleeve 23 and the crossbeam 13, thus unlocking the device.

[0040] The flask holder 3 includes two guide frames 31, which are welded to the bottom of the sliding sleeve 23 and symmetrical to the eccentric handle 26. The guide frames 31 are T-shaped, and the bottom surface of the guide frames 31 is higher than the bottom surface of the T-shaped frame 11.

[0041] The bottom surface of the guide frame 31 should be parallel to the bottom surface of the T-shaped frame 11.

[0042] Two guide frames 31 have slide plates 33 slidably installed on the inner bottom of the two guide frames 31. The slide plates 33 have a positioning hole 34 running vertically through the center of the slide plate 33. The positioning hole 34 is used to place the flask. An adjusting screw 35 is axially welded to the center of the outer side of the slide plate 33.

[0043] The slide plate 33 can be made of metal or plastic. The positioning hole 34 is a round hole. The flask is placed above the positioning hole 34. Because the bottom of the flask is round, when the flask is in a vertical position, the axis of the flask coincides with the axis of the positioning hole 34. At the same time, the positioning hole 34 can improve the stability of the flask when it is placed.

[0044] A horizontal plate 32 is welded and installed on the upper and lower sides of the guide frame 31. A knob 36 is rotatably installed in the middle of the two horizontal plates 32. An adjusting screw 35 passes through the two horizontal plates 32 and is threadedly connected to the knob 36.

[0045] Rotating the knob 36 drives the adjusting screw 35 to move axially, thereby driving the slide plate 33 to slide axially, and then driving the flask to move axially along the adjusting screw 35, making it easier to align the flask and the chromatography column.

[0046] In this embodiment, when the operator uses this equipment, he removes the fixing bolts 15 of the T-shaped frame 11 at one end of the crossbeam 13 and removes the T-shaped frame 11 at that location.

[0047] Align slider 21 with the first guide groove 14 and insert it. Then, put the sliding sleeve 23 onto the crossbeam 13, and insert the pull rod 22 from the bottom of the sliding sleeve 23 and screw it into slider 21. The installation of sliding sleeve 23 is now complete. Adjust the number of mounting brackets 2 according to experimental needs.

[0048] Reinstall the removed T-shaped bracket 11 and fix the butterfly clip 28 to the guide rod 24.

[0049] Place the flask into the positioning hole 34 of the slide plate 33, and ensure that the flask is vertical.

[0050] Secure the chromatography column with butterfly clip 28.

[0051] Turn knob 36 to move slide plate 33, adjust the flask position to ensure the flask mouth is aligned with the bottom of the chromatography column, then loosen butterfly clamp 28, adjust the height of chromatography column so that the chromatography column is inserted into the flask mouth, and then use butterfly clamp 28 to fix it in place.

[0052] Move the sliding sleeves 23 to adjust the distance between each sliding sleeve 23. When the sliding sleeves 23 move, they can move the chromatography column through the butterfly clamp 28, and at the same time move the flask through the flask rack 3, ensuring that the flask and the chromatography column are relatively stationary.

[0053] After the position is adjusted, turn the eccentric handle 26 upward to drive the pull rod 22 to move downward, thereby driving the slider 21 and the sliding sleeve 23 to approach each other, thereby increasing the friction between the slider 21 and the sliding sleeve 23 and the crossbeam 13, and fixing the slider 21 and the sliding sleeve 23 to the crossbeam 13.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable support device for biochemical experiments, characterized in that, include: The base (1) includes a T-shaped frame (11), and a crossbeam (13) is snapped between the T-shaped frames (11). The bottom of the crossbeam (13) is provided with a first guide groove (14) axially through it. A plurality of mounting brackets (2) are slidably mounted on the crossbeam (13). The mounting bracket (2) includes a sliding sleeve (23) and a slider (21). The slider (21) is slidably mounted in the first guide groove (14), and the sliding sleeve (23) is slidably mounted on the outside of the crossbeam (13). The slider (21) is vertically threaded with a pull rod (22) in the middle. The head of the pull rod (22) passes through the sliding sleeve (23) and is rotatably connected to an eccentric handle (26). A first elastic element (25) is provided between the eccentric handle (26) and the sliding sleeve (23). A flask rack (3) is fixedly installed below each of the mounting brackets (2).

2. The adjustable support device for biochemical experiments as described in claim 1, characterized in that: The flask rack (3) includes two guide frames (31), which are fixedly installed at the bottom of the sliding sleeve (23) and symmetrical to the eccentric handle (26). The guide frames (31) are T-shaped, and the bottom surface of the guide frames (31) is higher than the bottom surface of the T-shaped frame (11).

3. The adjustable support device for biochemical experiments as described in claim 2, characterized in that: Two guide frames (31) are slidably mounted on the inner bottom of a slide plate (33). The slide plate (33) has a positioning hole (34) running vertically through the center. The positioning hole (34) is used to place a flask. An adjusting screw (35) is axially provided on the outer center of the slide plate (33).

4. The adjustable support device for biochemical experiments as described in claim 3, characterized in that: The guide frame (31) has horizontal plates (32) fixedly installed on the upper and lower sides of its end. A knob (36) is rotatably installed in the middle of the two horizontal plates (32). The adjusting screw (35) passes between the two horizontal plates (32) and is threadedly connected to the knob (36).

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