Pipette tip arrangement device

Abstract

The utility model relates to a pipette tip arrangement device which comprises a box body, a positioning fork, a plug piece and a pressing plate, the box body is a rectangular frame, m partition plates arrayed in the left-right direction are perpendicularly connected between a front wall plate and a rear wall plate of the box body, and the lower portion of an inner cavity of the box body is divided into m + 1 partitions. N transverse supports arrayed in the front-back direction are arranged in each subarea, and the transverse supports are perpendicular to the subarea partition plates; a first step is arranged on one side, facing the adjacent cross brace, of the cross brace, and the first step is lower than the top surface of the cross brace; a second step is arranged at one end, close to the partition plate, of the first step and is lower than the first step; the positioning fork comprises at least one three-tooth fork head, and the three-tooth fork head and the n transverse supports jointly provide limiting in the front, back, left and right directions for the gun heads arranged on the second step; the plug piece comprises a plurality of frustum protruding heads used for being connected with the gun heads arranged on the second step in an inserted mode. The pressing plate comprises a plurality of comb teeth used for combing away the gun head. The technical scheme is simple in structure, low in cost and convenient to operate.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipette tip arrangement, and particularly relates to a pipette tip arrangement device. Background Art

[0002] Pipette tips are conventional experimental consumables in the biomedical field. Since the tips arranged in an orderly manner in the tip box are relatively expensive to purchase, in order to save costs, the purchased tips are generally in loose packages. Before batch use, the tips need to be manually packed into the tip box.

[0003] The tip arrangement devices in the prior art have a large, complex structure and high cost. At present, there is no auxiliary arrangement device with a simple structure and convenient operation for hospitals or research institutions. Therefore, in hospitals and research institutions, currently, the tips are basically manually arranged one by one into the tip box, resulting in low efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to make up for the deficiencies of the prior art and provide a pipette tip arrangement device with a simple structure and convenient operation.

[0005] To solve the above technical problem, the technical solution of the present invention is as follows:

[0006] A pipette tip arrangement device includes a box body, a positioning fork, a plug member, and a pressing plate;

[0007] The box body is a rectangular frame without a top and a bottom. There are m partition partitions vertically connected between the front wall plate and the rear wall plate of the box body, where m≥1. The m partition partitions are arranged in an array in the left-right direction, dividing the lower part of the inner cavity of the box body into m + 1 partitions; n cross braces are provided in each partition, where n≥10. The cross braces are perpendicular to the partition partitions, and the n cross braces are arranged in an array in the front-rear direction; on one side of the cross brace facing the adjacent cross brace, there is a first step, and the first step is lower than the top surface of the cross brace; at one end of the first step close to the partition partition, there is a second step, and the second step is lower than the first step; the length of the second step is a, and a - D≤1mm. The distance between two adjacent cross braces is b1, and the distance between two facing first steps is b2, where dmax<b1<D<b2; D is the outer diameter of the step convex ring at the opening of the tip, and dmax is the maximum outer diameter of the conical part of the tip except for the step convex ring;

[0008] The positioning fork includes at least one three-tooth fork head. The positioning fork is slidably connected to the box body, and the sliding direction is the front-rear direction. The three-tooth fork head is located below the partition partition and provides four-directional limits in the front, rear, left, and right directions for the tips arranged on the second step together with the n cross braces;

[0009] The plug member includes a number of frustum-shaped convex heads, and the frustum-shaped convex heads are used for plugging the tips arranged on the second step;

[0010] The pressing plate includes a number of comb teeth, which are used to comb the gun heads away from the frustum-shaped protrusions.

[0011] Furthermore, legs are provided at the four corners of the box body.

[0012] Furthermore, the sliding connection structure between the positioning fork and the box body is as follows: the three-tooth fork head includes a long tooth and short teeth symmetrically arranged on both sides of the long tooth. The protruding ends of the long tooth and the short teeth are both provided with pointed wedges; each partition baffle is correspondingly provided with a guiding block, which is fixedly connected to the box body. A guiding hole K is provided on the guiding block, and the long tooth is slidably connected to the guiding hole K. The left-right symmetry plane of the guiding hole K coincides with the left-right symmetry plane of the partition baffle.

[0013] Furthermore, a linear reciprocating rocking mechanism is further included, which is used to rock the box body.

[0014] Furthermore, a base is included. A linear guide rail is provided on the base. Guide rollers are fixedly provided on both sides of the front part of the box body, and flat rollers are fixedly provided on both sides of the rear part of the box body. The guide rollers are located on the linear guide rail, and the linear guide rail provides guidance for the rolling of the guide rollers. The flat rollers are located on the base; a hinge ear is fixedly provided at the left end or the right end of the box body. One end of the rocker is hinged to the hinge ear, the other end of the rocker is hinged to the first end of the crank, the second end of the crank is fixedly connected to the output shaft of the motor, the motor is fixedly connected to the motor mounting frame, and the motor mounting frame is fixedly connected to the base.

[0015] Furthermore, handles are respectively fixedly provided at the left and right ends of the base.

[0016] The beneficial effects that can be achieved by the present invention are as follows: during use, pour some gun heads into the box body; hold the box body and shake it left and right continuously for several times to make the gun heads fall on the second step; place the box body horizontally on the table, and use the positioning fork and the cross brace in combination to provide limits for the gun heads arranged on the second step in the front, back, left, and right directions; then align the frustum-shaped protrusion on the plug part with the gun heads on the second step and insert them, and transfer these gun heads to the corresponding placement holes in the gun head box; then use the comb teeth on the pressing plate to comb the gun heads away from the frustum-shaped protrusion. The structure is simple, the cost is low, the operation is convenient, and the occupied space is small, which is convenient to be placed on the test bench. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the gun head.

[0018] Figure 2 It is a three-dimensional view of the box body in Embodiment 1 of the present invention.

[0019] Figure 3 It is a front view of the box body in Embodiment 1 of the present invention.

[0020] Figure 4 It is a top view of the box body in Embodiment 1 of the present invention.

[0021] Figure 5 is Figure 4 the A-A cross-sectional view of

[0022] Figure 6 is Figure 5 the enlarged view of part B in

[0023] Figure 7 is Figure 4 the C-C cross-sectional view of

[0024] Figure 8 is Figure 4 the D-D cross-sectional view of

[0025] Figure 9 is Figure 7 the enlarged view of part E in

[0026] Figure 10 is the top view of the positioning fork in Embodiment 1 of the present invention.

[0027] Figure 11 is the perspective view of the plug-in part in Embodiment 1 of the present invention.

[0028] Figure 12 is the schematic diagram of the state when the gun head lands on the second step during the use of Embodiment 1 of the present invention.

[0029] Figure 13 is the usage state diagram of the positioning fork during the use of Embodiment 1 of the present invention.

[0030] Figure 14 is the state diagram of the matching use of the positioning fork and the plug-in part during the use of Embodiment 1 of the present invention.

[0031] Figure 15 is the perspective view of the pressure plate in Embodiment 1 of the present invention.

[0032] Figure 16 is the top view of the pressure plate in Embodiment 1 of the present invention.

[0033] Figure 17 is the state flow chart of Embodiment 1 of the present invention.

[0034] Figure 18 is the perspective view of Embodiment 2 of the present invention.

[0035] Figure 19 is the front view of Embodiment 2 of the present invention.

[0036] In the figure: 1 - box body, 101 - rear wall plate, 102 - left wall plate, 103 - front wall plate, 104 - right wall plate, 2 - support leg, 3 - guide block, 301 - guide hole K, 4 - partition partition, 5 - cross brace, 501 - top surface, 502 - first step, 503 - second step; 6 - positioning fork, 601 - base plate, 602 - handle A, 603 - short tooth, 604 - long tooth, 605 - wedge; 7 - plug part, 701 - block, 702 - handle B, 703 - frustum convex head; 8 - pressing plate, 801 - comb teeth, 9 - guide roller, 10 - rocker, 11 - linear guide rail, 12 - crank, 13 - base, 14 - handle, 15 - motor mounting bracket, 16 - motor, 17 - flat roller, 18 - hinge ear; 98 - gun head box, 99 - gun head, 991 - stepped convex ring. Detailed implementation mode

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation modes.

[0038] Embodiment 1

[0039] The gun head 99 applicable to this embodiment is as Figure 1 shown. There is a stepped convex ring 991 at its opening. The outer diameter of the stepped convex ring 991 is D, and the maximum outer diameter of the conical part outside the stepped convex ring 991 is dmax. This embodiment is applicable to placing the gun heads 99 in small batches in the gun head box 98.

[0040] A pipette tip arranging device includes a box body 1, a positioning fork 6, a plug part 7 and a pressing plate 9.

[0041] As Figures 2 - 9As shown, the box body 1 is a rectangular frame without a top and bottom, composed of a front wall plate 103, a rear wall plate 101, a left wall plate 102, and a right wall plate 104. There are 2 partition partitions 4 vertically connected between the front wall plate 103 and the rear wall plate 101 of the box body 1. The 2 partition partitions 4 are arranged in an array in the left - right direction, dividing the lower part of the inner cavity of the box body 1 into 3 partitions. The height of the partition partition 4 is h1, and the height of the box body 1 is h2, where h1 < h2. The height space of (h2 - h1) provides space for the shaking of at least one layer of horizontally placed gun heads 99 to be arranged. The bottom surface of the partition partition 4 is flush with the bottom surface of the box body 1. Each partition is provided with 13 cross braces 5. The cross braces 5 are perpendicular to the partition partition 4. The 13 cross braces 5 are arranged in an array in the front - rear direction. The cross braces 5 are of the same height as the partition partition 4 and their bottom surfaces are flush; on one side of the cross brace 5 facing the adjacent cross brace 5, there is a first step 502, and the first step 502 is lower than the top surface 501 of the cross brace 5; at one end of the first step 502 close to the partition partition 4, there is a second step 503, and the second step 503 is lower than the first step 502; the length of the second step 503 is a, and a - D ≤ 1mm. The distance between two adjacent cross braces 5 is b1, the distance between two facing first steps 502 is b2, and dmax < b1 < D < b2. Legs 2 are provided at the four corners of the box body 1.

[0042] As Figure 10 shown, the positioning fork 6 includes a base plate 601. A handle A 602 and 2 three - pronged fork heads are provided on the base plate 601. Each three - pronged fork head includes a long tooth 604 and short teeth 603 symmetrically arranged on both sides of the long tooth 604. The protruding ends of the long tooth 604 and the short teeth 603 are both provided with pointed wedges 605. The positioning fork 6 is slidably connected to the box body 1, and the sliding direction is the front - rear direction. The sliding connection structure is: corresponding to each partition partition 4, there is a guide block 3. The guide block 3 is fixedly connected to the box body 1. A guide hole K301 is provided on the guide block 3. The long tooth 604 is slidably connected to the guide hole K301. The left - right symmetry plane of the guide hole K301 coincides with the left - right symmetry plane of the partition partition 4. The three - pronged fork head is located below the partition partition 4 and, together with the 13 cross braces 5, provides four - direction limit for the gun head 99 arranged on the second step 503, as Figure 13 shown.

[0043] As Figure 11 shown, the plug - in member 7 includes a block 701. A handle B 702 is provided above the block 701, and 24 conical - headed protrusions 703 in 12 rows and 2 columns are provided below. The conical - headed protrusions 703 are used for plugging into the gun heads 99 arranged on the second step 503.

[0044] As Figure 15 and Figure 16 shown, the pressing plate 9 includes a number of comb teeth 801. The comb teeth 801 are used for combing the gun heads 99 off the conical - headed protrusions 703.

[0045] The components in this embodiment can all be made of plastic material, which is low-cost and lightweight.

[0046] Usage of this embodiment:

[0047] (1) Pour some gun heads 99 into the box body 1;

[0048] (2) Hold the box body 1 by hand and shake it left and right continuously for several times to make the gun heads 99 fall onto the second step 503;

[0049] (3) Place the box body 1 horizontally on the desktop;

[0050] (4) Push the long teeth 604 of the two three-tooth forks of the positioning fork 6 from front to back and insert them into the guiding hole K301 until it can no longer be pushed, as Figure 13 shown;

[0051] (5) Align the frustum-shaped convex head 703 on the plug member 7 with the gun head 99 on the second step 503 and insert them, as Figure 14 shown, and transfer these gun heads 99 to the corresponding placement holes in the gun head box 98;

[0052] (6) Use the comb teeth 801 on the pressing plate 9 to press down the gun heads 99 on the frustum-shaped convex head 703, and at the same time pull up the plug member 7 to make the comb teeth 801 comb off the gun heads 99 on the frustum-shaped convex head 703, as Figure 17 shown.

[0053] Embodiment 2

[0054] On the basis of Embodiment 1, remove the support legs 2, fixedly provided with guiding rollers 9 on both sides of the front part of the box body 1, and fixedly provided with flat rollers 17 on both sides of the rear part of the box body 1; in order to realize automatic shaking of the box body 1, a linear reciprocating shaking mechanism is set up, as Figure 18 and Figure 19 shown,

[0055] The linear reciprocating shaking mechanism includes a base 13, a linear guide rail 11 is provided on the base 13, the guiding roller 9 is seated on the linear guide rail 11, the linear guide rail 11 provides guidance for the rolling of the guiding roller 9, and the flat roller 17 is seated on the base 13; a hinge ear 18 is fixedly provided at the left end or the right end of the box body 1, one end of the rocker 10 is hinged to the hinge ear 18, the other end of the rocker 10 is hinged to the first end of the crank 12, the second end of the crank 12 is fixedly connected to the output shaft of the motor 16, the motor 16 is fixedly connected to the motor mounting frame 15, and the motor mounting frame 15 is fixedly connected to the base 13.

[0056] In order to facilitate overall handling, handles 14 are respectively fixedly provided at the left and right ends of the base 13.

[0057] The usage method is similar to that of Embodiment 1, except that "hold the box body 1 and shake it left and right continuously for several times" is replaced with "adopt a linear reciprocating shaking mechanism to make the box body 1 shake left and right continuously for several times".

[0058] In the description of the present invention, the words indicating the orientation or positional relationship such as "inside", "outside", "upper", "lower", "front", "rear", etc. are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention.

[0059] The above is only one implementation mode of the present invention. The protection scope of the present invention is not limited to the above embodiments. It should be pointed out that for those of ordinary skill in the art of this technology, several improvements and refinements made without departing from the idea of the present invention are within the protection scope of the present invention.

Claims

1. A pipette tip arrangement device, characterized in that: It comprises a box body (1), a positioning fork (6), a plug member (7) and a pressing plate (8); The box body (1) is a rectangular frame without a top or bottom. m partitioning plates (4) are vertically connected between the front wall plate (103) and the rear wall plate (101) of the box body (1), where m≥1. The m partitioning plates (4) are arranged in an array along the left-right direction, dividing the lower part of the inner cavity of the box body (1) into m+1 partitions. n cross braces (5) are arranged in each partition, where n≥10. The cross braces (5) and the partitioning plates (4) are perpendicular to each other. The n cross braces (5) are arranged in an array along the front-back direction. A first step (502) is provided on the side of the cross brace (5) facing the adjacent cross brace (5). The first step (502) is lower than the cross brace (5). The top surface (501) of the support (5) is provided with a second step (503) at one end of the first step (502) close to the partitioning baffle (4), and the second step (503) is lower than the first step (502); the length of the second step (503) is a, aD≤1mm, the spacing between two adjacent cross supports (5) is b1, the spacing between two first steps (502) facing each other is b2, dmax<b1<D<b2; D is the outer diameter of the step convex ring (991) at the opening of the gun head (99), and dmax is the maximum outer diameter of the conical part of the gun head (99) excluding the step convex ring (991); The positioning fork (6) comprises at least one three-tooth fork head. The positioning fork (6) is slidably connected to the box body (1) in a forward and backward sliding direction. The three-tooth fork head is located below the partition plate (4) and together with the n cross braces (5) provide positioning in four directions, namely, forward, backward, left and right, for the gun head (99) arranged on the second step (503). The plug member (7) comprises a plurality of frustum-shaped protrusions (703), wherein the frustum-shaped protrusions (703) are used to be plugged into the gun heads (99) arranged on the second step (503); The pressing plate (8) comprises a plurality of comb teeth (801), and the comb teeth (801) are used to comb the gun tip (99) away from the frustum boss (703).

2. The pipette tip arrangement device according to claim 1, characterized in that: The four corners of the box body (1) are each provided with supporting legs (2).

3. The pipette tip arrangement device according to claim 1, characterized in that: The sliding connection structure between the positioning fork (6) and the box body (1) is as follows: the three-tooth fork head comprises a long tooth (604) and short teeth (603) symmetrically arranged on both sides of the long tooth (604), and the protruding ends of the long teeth (604) and the short teeth (603) are both provided with a wedge (605); each partitioning baffle (4) is correspondingly provided with a guide block (3), the guide block (3) is fixedly connected to the box body (1), a guide hole K (301) is provided on the guide block (3), the long tooth (604) is slidably connected to the guide hole K (301), and the left and right symmetric planes of the guide holes K (301) coincide with the left and right symmetric planes of the partitioning baffle (4).

4. The pipette tip arrangement device according to claim 1, characterized in that: It also includes a linear reciprocating shaking mechanism, which is used to shake the box body (1).

5. The pipette tip arrangement device according to claim 4, characterized in that: The invention comprises a base (13), on which a linear guide rail (11) is provided, guide rollers (9) are fixedly provided on both sides of the front of the box body (1), and flat rollers (17) are fixedly provided on both sides of the rear of the box body (1), the guide rollers (9) are seated on the linear guide rails (11), the linear guide rails (11) provide guidance for the rolling of the guide rollers (9), and the flat rollers (17) are seated on the base (13); a hinge ear (18) is fixedly provided on the left or right end of the box body (1), one end of the rocker (10) is hinged to the hinge ear (18), the other end of the rocker (10) is hinged to the first end of the crank (12), the second end of the crank (12) is fixedly connected to the output shaft of the motor (16), the motor (16) is fixedly connected to the motor mounting frame (15), and the motor mounting frame (15) is fixedly connected to the base (13).

6. The pipette tip arrangement device according to claim 5, characterized in that: Handles (14) are fixedly provided at the left and right ends of the base (13), respectively.

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