A rotary pipette holder

Abstract

This utility model relates to the field of pipette technology, specifically to a rotary pipette holder, comprising a base, a column, and a locking mechanism. The base has a detachable collection box with an upper opening, and the collection box has a through hole in the middle. The column includes a first column and a second column. The lower end of the first column passes through the through hole and is rotatably connected to the base. The upper ends of the first column and the lower ends of the second column are fixed or separated by the locking mechanism. The upper end of the second column has a support member for holding the pipette. The collection structure of this utility model allows for a clear view of the amount of liquid dripped from the pipette, and the collection structure can be detached from the holder for easy cleaning.

Description

Technical Field

[0001] This utility model relates to the field of pipette technology, specifically to a rotary pipette holder. Background Technology

[0002] Laboratory pipettes are a type of pipette commonly used for transferring small or trace amounts of liquid in the laboratory. However, in actual experimental operations, multiple pipettes are often required. To avoid pipettes occupying too much space on the clean bench and to prevent damage to the pipettes, various pipette holders exist in the prior art for storing pipettes. Some of these holders are rotatable and can collect liquid dripped from the pipette, such as the holder in patent publication number CN204911570U.

[0003] However, these types of holders have some drawbacks: First, the collection structure of these holders often makes it difficult for researchers to directly observe the amount of liquid dripped from the pipette (when too much liquid drips from the pipette, it usually indicates that the pipette or pipette tip needs to be replaced), making it difficult for researchers to determine in a timely manner whether the pipette or pipette tip needs to be replaced, which may affect the accuracy and efficiency of the experiment; Second, the inside of the collection structure of these holders is often difficult to clean, and liquid residues are easy to accumulate inside, which can easily breed bacteria, produce odors, and even pollute the experimental environment over time. Summary of the Invention

[0004] This invention addresses the technical problems of existing pipette holders that collect liquid from a pipette, where the collection structure often makes it difficult for researchers to directly observe the amount of liquid dripping and is also inconvenient to clean. The invention provides a rotary pipette holder. In this holder, the collection structure allows for a direct view of the amount of liquid dripping from the pipette, and the collection structure can be detached from the holder for easy cleaning.

[0005] The technical solution of this utility model is: a rotary pipette holder, including a base, a column and a locking component. The upper end of the base is detachably provided with a collection box with an upper opening, and the collection box has a through hole in the middle. The column includes a first column and a second column. The lower end of the first column passes through the through hole and is rotatably connected to the base. The upper end of the first column and the lower end of the second column are fixed or separated by the locking component. The upper end of the second column is provided with a support component, which is used to place the pipette.

[0006] By adopting the above solution, the support column is divided into two columns, Column 1 and Column 2, which can be fixed or separated. When it is necessary to clean the collection box, Column 1 and Column 2 can be separated, and the collection box can be removed through the through hole in the middle of the collection box. After the collection box is cleaned, it can be placed on the base through the through hole, and Column 1 and Column 2 can be locked with locking devices, so that the support can be reused. The overall operation is simple. In addition, the upper opening of the collection box makes it easy for the experimenter to directly observe the total amount of liquid dripped by the pipette in the collection box, so as to promptly determine whether the pipette or pipette tip needs to be replaced.

[0007] Based on the above solution, the present invention can be further improved as follows:

[0008] Furthermore, a positioning block is provided at the middle of the upper end of the first column, and a positioning groove is provided at the middle of the lower end of the second column. The positioning block can be inserted into the positioning groove, and at least two clamping blocks are arranged in a circular array at the lower end of the second column. There is a gap between adjacent clamping blocks, and the locking member can clamp or release the positioning block.

[0009] Furthermore, the locking component is a cylindrical body located between column one and column two. The upper end of the cylindrical body is threadedly connected to the lower end of column two, and the inner diameter of the lower end of the cylindrical body gradually increases from top to bottom. The pressing block is provided with protrusions or wedges on the outside. During the downward twisting of the cylindrical body, the protrusions or wedges on the outside of the pressing block will be squeezed, causing the pressing block to clamp the positioning block.

[0010] By adopting the above-mentioned further solution, by setting positioning blocks and positioning grooves on column one and column two respectively, preliminary positioning can be achieved when fixing column one and column two; and by setting a clamping block at the lower end of column two, and the cylinder is threadedly connected to column two, and the clamping block is provided with protrusions or wedges on the outside, so that when the cylinder is screwed downward, it will squeeze the protrusions or wedges on the outside of the clamping block, thereby enabling the clamping block to clamp the positioning block, and thus completing the fixing of column one and column two.

[0011] Furthermore, the inner wall of the collection box is arc-shaped, which can reduce the splashing of dripping liquid to a certain extent. This makes the volume depth of the collection box gradually increase from the outside to the middle, so that the liquid dripping into the collection box will converge towards the middle of the collection box, thereby further reducing the possibility of liquid splashing. It also makes it easier for the experimenter to observe the total amount of liquid dripped by the pipette.

[0012] Furthermore, the upper end of the base is provided with an annular surrounding plate, the bottom of the collection box and the top of the base are both horizontal, and the outer diameter of the collection box is the same as the inner diameter of the surrounding plate, so that when the collection box is placed on the base, the surrounding plate can limit the collection box and prevent the collection box from swaying left and right.

[0013] Furthermore, the upper end of the enclosure is provided with at least one locking block, and the upper end of the collection box is provided with a handrail with the same number of locking blocks. The handrail is provided with a locking groove. When the collection box is placed on the base, the locking groove is engaged with the locking block, thereby limiting the rotation of the collection box and thus achieving the positioning of the collection box.

[0014] Furthermore, the length of the positioning block is greater than the sum of the lengths of the positioning groove and the clamping block, so that the weight of the pipette is borne by the positioning block, thereby ensuring the service life of the clamping block.

[0015] Furthermore, the support includes a suspension plate and a positioning plate. The suspension plate has at least three elliptical suspension holes arranged in a circular array. The positioning plate is located below the suspension plate and its diameter is larger than that of the suspension plate. The positioning plate has positioning holes with the same distribution angle as the suspension holes, so that when placing the pipette, the pipette stock can be suspended on the suspension holes, the lower end of the pipette can pass through the positioning holes, and the middle part of the pipette can be locked in the positioning holes, thereby forming a dual positioning for the pipette.

[0016] Furthermore, the cross-section of the positioning block is polygonal.

[0017] Furthermore, the top of the second column is provided with an operating cap.

[0018] The beneficial effects of this utility model through the above technical solution are as follows:

[0019] 1. In this utility model, by splitting the column into column one and column two, which can be fixed or separated, when it is necessary to clean the collection box, column one and column two can be separated, and the collection box can be removed through the through hole in the middle of the collection box; after the collection box is cleaned, the collection box can be placed on the base through the through hole, and then column one and column two can be locked with locking parts, so that the bracket can be reused; and the upper opening of the collection box makes it easy for the experimenter to directly observe the total amount of liquid dripped by the pipette in the collection box, so as to judge in time whether the pipette or pipette tip needs to be replaced.

[0020] 2. In a further embodiment of this utility model, by setting positioning blocks and positioning grooves on column one and column two respectively, preliminary positioning can be achieved when fixing column one and column two; and by setting a clamping block at the lower end of column two, and the cylinder is threadedly connected to column two, and the clamping block is provided with protrusions or wedges on the outside, so that when the cylinder is screwed downward, it will squeeze the protrusions or wedges on the outside of the clamping block, thereby enabling the clamping block to clamp the positioning block, and thus completing the fixing of column one and column two. The overall operation is simple.

[0021] 3. In a further embodiment of this utility model, the inner wall of the collection box is arc-shaped, which can reduce the splashing of dripping liquid to a certain extent. Furthermore, the volume depth of the collection box gradually increases from the outside to the middle, which allows the liquid dripping into the collection box to converge towards the middle of the collection box, thereby further reducing the possibility of splashing of dripping liquid and making it easier for experimental personnel to observe the total amount of liquid dripped by the pipette. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a cross-sectional view of the present invention;

[0024] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0025] The attached diagram is labeled as follows: 1. Base, 101. Enclosure, 102. Locking block, 2. Column, 201. Column 1, 202. Column 2, 3. Collection box, 301. Through hole, 302. Handrail, 303. Locking groove, 4. Support component, 401. Suspension plate, 402. Suspension hole, 403. Positioning plate, 404. Positioning hole, 5. Cylinder, 6. Positioning block, 7. Positioning groove, 8. Clamping block, 9. Operating cap. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0027] like Figures 1-3 As shown, a rotary pipette holder includes a base 1, a column 2, and a locking mechanism. The base 1 has a detachable collection box 3 with an upper opening, allowing researchers to directly observe the total volume of liquid dripped from the pipette within the collection box 3, thus enabling timely judgment of whether the pipette or pipette tip needs replacement. The collection box 3 has a through hole 301 in the middle. The column 2 includes a first column 201 and a second column 202, with the diameters of both columns being the same as the diameter of the through hole 301. The lower end of the first column 201 passes through the through hole 301 and is rotatably connected to the base 1, while the upper end of the first column 201 is connected to the column... The lower end of column 202 is fixed or separated by a locking device, so that when it is necessary to clean the collection box 3, column 1 201 and column 202 are separated first, and the collection box 3 can be removed through the through hole 301 in the middle of the collection box 3. After the collection box 3 is cleaned, the collection box 3 is placed on the base 1 through the through hole 301, and then column 1 201 and column 202 are locked with the locking device, so that the bracket can be used again. The upper end of column 202 is provided with a support member 4, which is used to place the pipette, and the top of column 202 is provided with an operating cap 9, which facilitates the operation of column 202 to drive the pipette to rotate.

[0028] In one possible implementation, a positioning block 6 is provided at the upper center of the first column 201, and the cross-section of the positioning block 6 is polygonal, such as a triangle, quadrilateral, or pentagon. A positioning groove 7 is provided at the lower center of the second column 202, and the positioning block 6 can be inserted into the positioning groove 7, thereby achieving initial positioning of the first column 201 and the second column 202. Furthermore, at least two clamping blocks 8 are arranged in a circular array at the lower end of the second column 202, with gaps between adjacent clamping blocks 8. The locking element is... The cylinder 5 is located between column 1 201 and column 2 202. The upper end of the cylinder 5 is threadedly connected to the lower end of column 2 202, and the inner diameter of the lower end of the cylinder 5 gradually increases from top to bottom. The clamping block 8 is provided with protrusions or wedges on the outside. When the cylinder 5 is screwed downward, it will squeeze the protrusions or wedges on the outside of the clamping block 8, so that the clamping block 8 clamps the positioning block 6, thereby completing the fixation of column 1 201 and column 2 202. To ensure the clamping effect, rubber material or the like can be provided on the inner wall of the clamping block 8.

[0029] As one possible implementation, the inner wall of the collection box 3 is arc-shaped, which can reduce the splashing of dripping liquid to a certain extent. This makes the volume depth of the collection box 3 gradually increase from the outside to the middle, so that the liquid dripping into the collection box 3 will converge towards the middle of the collection box 3, thereby further reducing the possibility of liquid splashing. It also makes it easier for the experimenter to observe the total amount of liquid dripped by the pipette.

[0030] As one possible implementation, the upper end of the base 1 is provided with an annular surrounding plate 101, the bottom of the collection box 3 and the top of the base 1 are both horizontal, and the outer diameter of the collection box 3 is the same as the inner diameter of the surrounding plate 101, so that when the collection box 3 is placed on the base 1, the surrounding plate 101 can limit the collection box 3 and prevent the collection box 3 from swaying left and right.

[0031] As one possible implementation, the upper end of the enclosure 101 is provided with at least one locking block 102, and the upper end of the collection box 3 is provided with a number of handrails 302 equal to the number of locking blocks 102. The handrails 302 are provided with slots 303. When the collection box 3 is placed on the base 1, the slots 303 are engaged with the locking blocks 102, thereby limiting the rotation of the collection box 3 and thus achieving the positioning of the collection box 3.

[0032] As one possible implementation, the length of the positioning block 6 is greater than the sum of the lengths of the positioning groove 7 and the clamping block 8, so that the weight of the pipette is borne by the positioning block 6, thereby ensuring the service life of the clamping block 8.

[0033] In one possible implementation, the support 4 includes a suspension plate 401 and a positioning plate 403. The suspension plate 401 has at least three elliptical suspension holes 402 arranged in a circular array. The positioning plate 403 is located below the suspension plate 401 and the diameter of the positioning plate 403 is larger than the diameter of the suspension plate 401. The positioning plate 403 has positioning holes 404 with the same distribution angle as the suspension holes 402, so that when placing the pipette, the pipette stock can be suspended on the suspension holes 402, the lower end of the pipette can pass through the positioning holes 404, and the middle part of the pipette can be locked in the positioning holes 404, thereby forming a dual positioning of the pipette.

[0034] In this embodiment, when used:

[0035] When a bracket needs to be installed, pass the through hole 301 in the middle of the collection box 3 through the first column 201 and place it on the base 1, so that the collection box 3 is locked in the middle of the top plate 101 of the base 1, and the slot 303 on the handle 302 is locked in the locking block 102; then insert the positioning slot 7 at the lower end of the second column 202 into the positioning block 6 at the upper end of the first column 201, and screw the cylinder 5 downward, so that the gradually narrowing inner wall diameter at the lower end of the cylinder 5 squeezes the protrusion or wedge on the outside of the pressing block 8, thereby making the pressing block 8 clamp the positioning block 6, thus completing the fixing of the first column 201 and the second column 202; then suspend the pipette stock on the suspension hole 402, with the lower end of the pipette passing through the positioning hole 404, and the middle part of the pipette locked in the positioning hole 404;

[0036] When it is necessary to clean the liquid inside the collection box 3, first remove the pipette from the support, then twist the cylinder 5 upwards to loosen the clamping block 8 from the positioning block 6, hold the operating cap 9 at the top of the second column 202 and lift the second column 202 upwards to separate the first column 201 and the second column 202, then hold the handle 302 on the collection box 3 and lift it upwards. When the through hole 301 in the middle of the collection box 3 is disengaged from the first column 201, the collection box 3 can be removed and cleaned.

[0037] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Any equivalent or equivalent modifications or substitutions to the technical solutions of the present invention without departing from the spirit of the present invention or the scope of disclosure shall fall within the protection scope of the present invention.

Claims

1. A rotary pipette holder, characterized in that, The device includes a base (1), a column (2), and a locking component. The upper end of the base (1) is detachably provided with a collection box (3) with an upper opening, and the middle part of the collection box (3) is provided with a through hole (301). The column (2) includes a first column (201) and a second column (202). The lower end of the first column (201) passes through the through hole (301) and is rotatably connected to the base (1). The upper end of the first column (201) and the lower end of the second column (202) are fixed or separated by the locking component. The upper end of the second column (202) is provided with a support component (4), which is used to place a pipette.

2. The rotary pipette holder according to claim 1, characterized in that, The upper middle part of the first column (201) is provided with a positioning block (6), and the lower middle part of the second column (202) is provided with a positioning groove (7). The positioning block (6) can be inserted into the positioning groove (7), and the lower end of the second column (202) is provided with at least two clamping blocks (8) in a circular array. There is a gap between adjacent clamping blocks (8), and the locking member can make the clamping block (8) clamp or release the positioning block (6).

3. The rotary pipette holder according to claim 2, characterized in that, The locking component is a cylinder (5) located between column one (201) and column two (202). The upper end of the cylinder (5) is threaded to the lower end of column two (202), and the inner diameter of the lower end of the cylinder (5) gradually increases from top to bottom. The outer side of the clamping block (8) is provided with protrusions or wedges. During the downward twisting of the cylinder (5), the protrusions or wedges on the outside of the clamping block (8) will be squeezed, causing the clamping block (8) to clamp the positioning block (6).

4. The rotary pipette holder according to any one of claims 1 to 3, characterized in that, The inner wall of the collection box (3) is arc-shaped, so that the volume depth of the collection box (3) gradually increases from the outside to the middle.

5. The rotary pipette holder according to claim 4, characterized in that, The upper end of the base (1) is provided with an annular surrounding plate (101), the bottom of the collection box (3) and the top of the base (1) are both horizontal, and the outer diameter of the collection box (3) is the same as the inner diameter of the surrounding plate (101).

6. The rotary pipette holder according to claim 5, characterized in that, The upper end of the enclosure (101) is provided with at least one locking block (102), and the upper end of the collection box (3) is provided with a handrail (302) with the same number of locking blocks (102). The handrail (302) is provided with a slot (303). When the collection box (3) is placed on the base (1), the slot (303) is locked on the locking block (102).

7. The rotary pipette holder according to claim 2 or 3, characterized in that, The length of the positioning block (6) is greater than the sum of the lengths of the positioning groove (7) and the clamping block (8).

8. The rotary pipette holder according to claim 4, characterized in that, The support member (4) includes a suspension plate (401) and a positioning plate (403). The suspension plate (401) has at least three elliptical suspension holes (402) arranged in a ring array. The positioning plate (403) is located below the suspension plate (401) and the diameter of the positioning plate (403) is larger than the diameter of the suspension plate (401). The positioning plate (403) has positioning holes (404) with the same distribution angle as the suspension holes (402).

9. The rotary pipette holder according to claim 2 or 3, characterized in that, The cross-section of the positioning block (6) is polygonal.

10. The rotary pipette holder according to claim 4, characterized in that, The top of the second column (202) is provided with an operating cap (9).

Images