Pipette tip recovery box capable of preventing aerosol pollution

Abstract

The utility model discloses a pipettor tip recovery box capable of preventing aerosol pollution, which relates to a storage device and comprises a box body, a filling layer is arranged in the box body, a plurality of placing holes which are arranged in an arrayed manner and penetrate through the filling layer are formed in the filling layer, a limiting sleeve is movably arranged below the placing holes, a limiting groove is formed in the limiting sleeve, and the limiting groove is communicated with the filling layer. A mounting cavity is formed below the filling layer, sliding rods consistent with the placing holes in row number are slidably mounted in the mounting cavity, ejection blocks consistent with the placing holes in column number are arranged on the sliding rods, and an inclined surface is arranged on one side of each ejection block; one end of the sliding rod extends to the outer side of the box body, and an elastic reset piece is installed between the other end of the sliding rod and the inner wall of the box body. According to the utility model, the problem that the pipette tip is exposed and polluted by aerosol as the box cover is not closed in the process of recovering the pipette tip by a user is avoided.

Description

Technical Field

[0001] The utility model relates to a storage device, and more specifically, to a pipette tip recovery box capable of preventing aerosol pollution. Background Art

[0002] The pipette tip is a part of the pipette that is used to absorb and release liquid. It is usually a slender tubular structure with one end connected to the pipette body and the other end having an open port for absorbing or releasing liquid. The design of the tip can be adjusted according to the specific experimental needs and the properties of the liquid. The material of the tip is usually transparent plastic, so that the amount and state of liquid absorption can be observed. The diameter and length of the tip can also be selected according to the liquid volume and operation accuracy required for the experiment. Thinner tips are suitable for small volume liquid transfer and precise distribution, while thicker tips are suitable for large volume liquid transfer. Pipette tips are disposable and reusable. For reusable pipette tips, after they are used and cleaned and dried, they need to be placed in a recycling box for storage to reduce the risk of the pipette tips being contaminated by dust and bacteria in the environment. However, in the actual installation and recycling process, after the user puts a pipette tip into the recycling box, the lid of the box will be kept open to facilitate the placement of the next pipette tip. The pipette tip in the recovery box is exposed to the environment, and its head and internal liquid flow path are contaminated by aerosols in the air. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a pipette tip recovery box for preventing aerosol contamination in view of the deficiencies in the prior art, thereby avoiding the problem that the pipette tips are exposed to the outside and contaminated by aerosols due to the user failing to close the box cover during the process of recovering the pipette tips.

[0004] The utility model discloses a pipette tip recovery box for preventing aerosol contamination, comprising a box body; a box cover is hingedly installed on the upper part of the box body, a filling layer is provided in the box body, a plurality of placement holes arranged in an array and penetrating the filling layer are provided in the filling layer, a limiting sleeve is movably provided below the placement hole, a limiting groove is provided in the limiting sleeve, the placement hole and the limiting groove constitute a positioning groove for placing the pipette tip; an installation cavity is provided below the filling layer, a sliding rod with the same number of rows of the placement holes is slidably installed in the installation cavity, and a top block with the same number of columns of the placement holes is provided on the sliding rod; one end of the sliding rod extends to the outside of the box body, and an elastic reset piece is installed between the other end of the sliding rod and the inner wall of the box body; a cap is movably inserted into the end of the placement hole away from the installation cavity, a slot is provided at the bottom of the cap, and the pipette tip is inserted into the slot.

[0005] As a further improvement, a slope is provided on one side of the top block; the elastic reset member includes a telescopic rod and a spring; the spring is sleeved on the telescopic rod, a mounting plate is fixed to the end of the sliding rod, one end of the telescopic rod is fixed to the mounting plate, and the other end of the telescopic rod is fixed to the inner wall of the box body.

[0006] As a further improvement, a limiting platform is fixedly provided on the hole wall at one end of the placement hole close to the installation cavity, and a limiting ring matching the limiting platform is fixedly provided on the outer wall of the limiting sleeve.

[0007] Furthermore, an arc-shaped protrusion is fixedly provided at the middle position of the slot.

[0008] Furthermore, the cap is made of foam.

[0009] As a further improvement, the limiting groove matches the shape of the pipette tip.

[0010] As a further improvement, the filling layer and the limiting sleeve are both made of foam.

[0011] As a further improvement, a push-pull rod consistent with the column of placement holes is slidably installed in the installation cavity, and the push-pull rod is arranged below the sliding rod and is set perpendicular to the sliding rod; an inclined wedge block is provided on the side of the push-pull rod, and a guide groove consistent with the number of placement holes is opened on the sliding rod, and the guide groove is a T-slot structure with a larger upper part and a smaller lower part, and the top block is a T-block structure adapted to the T-slot structure, and the top block can be slid up and down and installed in the guide groove, and the protrusion at the bottom end of the top block is provided with an arc-shaped protrusion that can adapt to the inclined wedge surface of the inclined wedge block; the outer end of the push-pull rod extends to the outside of the box body, and a spring telescopic rod structure is installed between the inner end of the push-pull rod and the inner wall of the box body.

[0012] As a further improvement, the bottom of the installation cavity is provided with guide strips adapted to the two side surfaces of the push-pull rod, and the cavity wall of the box body is provided with guide holes for the push-pull rod to pass through.

[0013] Beneficial Effects

[0014] The advantage of the utility model is that a limiting sleeve is arranged in the placement hole, and a sliding rod, a top block and an elastic reset part for driving the limiting sleeve to move upward are arranged in the installation cavity of the box body, so that the connecting cap cover of the pipette tip placed in the placement hole can be made to fall back into the placement hole, avoiding the problem that the user fails to close the box cover during the process of recovering the pipette tip, causing the pipette tip to be exposed to the outside and contaminated by aerosol. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the top view of the box body of Example 1;

[0016] Figure 2 This is a schematic diagram of the internal side structure of the recycling box of Example 1;

[0017] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 4 It is a front structural cross-sectional view of a pipette tip recovery box for preventing aerosol contamination according to Example 2;

[0019] Figure 5 A side structural cross-sectional view of a pipette tip recovery box for preventing aerosol contamination according to Example 2;

[0020] Figure 6 A top view of the structure of a pipette tip recovery box for preventing aerosol contamination according to Example 2;

[0021] Figure 7 Schematic diagram of the top view of the combination of the sliding rod and the push-pull rod in Example 2;

[0022] Figure 8 It is a structural front view of the combination of the sliding rod and the push-pull rod in Example 2;

[0023] Fig. 9 This is a structural side view of the combination of the sliding rod and the push-pull rod in Example 2.

[0024] Wherein: 1-box body, 2-filling layer, 3-cap, 4-sliding rod, 5-box cover, 6-top block, 7-mounting plate, 8-spring, 9-telescopic rod, 10-arc-shaped protrusion, 11-pipette tip, 12-placing hole, 13-limiting ring, 14-limiting platform, 15-limiting sleeve, 16-push-pull rod, 17-oblique wedge block, 18-guide groove, 19-spring telescopic rod structure, 20-guide strip, 21-arc-surface protrusion. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the embodiments, but does not constitute any limitation to the utility model. Any limited modifications made by anyone within the scope of the claims of the utility model are still within the scope of the claims of the utility model.

[0026] The following describes an embodiment of the utility model based on its overall structure.

[0027] Example 1

[0028] See also Figure 1-Figure 3The utility model discloses a pipette tip recovery box for preventing aerosol contamination, comprising a box body 1. A box cover 5 is hingedly installed on the top of the box body. A filling layer 2 is provided in the box body 1, wherein the filling layer 2 is made of foam, and more specifically, EVA foam with a higher density and a harder texture can be used, so as to ensure that the limit sleeve 15 can move up and down in the placement hole 12. The filling layer 2 is provided with a plurality of placement holes 12 arranged and penetrating the filling layer 2. Figure 1 As shown, the present embodiment adopts a design of placement holes 12 with multiple rows and columns. A limit sleeve 15 is movably provided below the placement hole 12. The limit sleeve 15 is also made of foam. In order to prevent the limit sleeve 15 from falling from the placement hole 12, a limit platform 14 is fixedly provided on the hole wall at one end of the placement hole 12 close to the installation cavity of the present embodiment, and a limit ring 13 matching the limit platform 14 is fixedly provided on the outer wall of the limit sleeve 15. The mutual contact and interference between the two limit rings can ensure that the limit sleeve 15 is always limited to the position below the placement hole 12.

[0029] A limiting groove is provided in the limiting sleeve 15, and the placement hole 12 and the limiting groove constitute a positioning groove for placing the pipette tip 11. The limiting groove of the present embodiment matches the shape of the pipette tip 11, and can effectively position the pipette tip 11 to prevent it from colliding with the groove wall of the positioning groove during the movement of the recovery box, and effectively protect it. An installation cavity is provided below the filling layer 2, and a sliding rod 4 consistent with the number of rows of the placement holes 12 is slidably installed in the installation cavity. Among them, the sliding rod 4 is slidably connected to the installation cavity through an existing T-shaped slide rail structure. A top block 6 consistent with the number of rows of the placement holes 12 is provided on the sliding rod 4, and a side of the top block 6 is provided with an inclined surface. When installing and recovering the pipette tip 11, it is only necessary to cover the cap 3 on the pipette tip 11, and then put it into the positioning groove as a whole. At this time, the cap 3 can effectively prevent the contamination of the pipette tip 11 by aerosol. When the pipette tip 11 needs to be taken, the sliding rod 4 is simply pushed to move the end of the limiting sleeve 15 along the inclined surface to the top of the top block 6. At this time, the pipette tip 11 can rise and be exposed to the top of the placement hole 12, making it convenient to take.

[0030] One end of the sliding rod 4 extends to the outside of the box body 1 to facilitate the pushing operation of the sliding rod 4; an elastic reset member is installed between the other end of the sliding rod 4 and the inner wall of the box body 1 for resetting the sliding rod 4. Specifically, the elastic reset member includes a telescopic rod 9 and a spring 8. The maximum contraction length of the telescopic rod 9 can be set to the distance between the limit sleeve 15 moving from the initial position to the top of the top block 6 to prevent the limit sleeve 15 from falling from the side of the top block 6 away from its inclined surface. The spring 8 is sleeved on the telescopic rod 9, and a mounting plate 7 is fixed to the end of the sliding rod 4, one end of the telescopic rod 9 is fixed to the mounting plate 7, and the other end of the telescopic rod 9 is fixed to the inner wall of the box body 1. When the pipette tip 11 is taken out from the box body 1, the sliding rod 4 is pushed and the spring 8 contracts; after the pipette tip 11 is taken out, when the sliding rod 4 is released, the sliding rod 4 will be reset under the action of the spring 8, and the limiting sleeve 15 will be reset to the top of the sliding rod 4 along the inclined surface, so that the unused pipette tip 11 falls into the positioning groove to avoid being exposed to the outside and contaminated by aerosols.

[0031] In addition, the placement hole 12 is a stepped hole, and a cap 3 is movably inserted at one end thereof away from the installation cavity, and the cap 3 is made of foam. A slot is provided at the bottom of the cap 3, and the pipette tip 11 is inserted into the slot. The cap 3 seals the upper end of the pipette tip 11, which can prevent aerosol contamination caused by direct contact of the pipette tip 11 with the air after the box cover 5 is opened.

[0032] Preferably, an arc-shaped protrusion 10 is fixedly provided in the middle of the slot. Among the circles surrounded by the arc-shaped protrusions 10, the circle with the smallest diameter is slightly smaller than the diameter of the upper cylinder of the pipette tip 11, so that the pipette tip 11 can be stuck in the slot. Therefore, when taking the pipette tip 11, it is only necessary to lift the cap 3, which reduces the contamination caused by direct contact of the hand with the pipette tip 11.

[0033] The working principle of the utility model is: when installing and recycling the pipette tip 11, it is only necessary to cover the cap 3 on the pipette tip 11, and then put it as a whole into the positioning groove. When taking the pipette tip 11, first open the box cover 5, and then press one of the sliding rods 4. At this time, the sliding rod 4 will move into the box body 1, and during its movement, the end of the limiting sleeve 15 will move along the inclined surface to the top of the top block 6. That is, when the sliding rod 4 can no longer be pushed into the box, it is considered that the limiting sleeve 15 is already located at the top of the top block 6. At this time, the pipette tip 11 and the cap 3 rise and are exposed to the top of the placement hole 12. Then take off the cap 3 and the pipette tip 11 together, release the pressure on the sliding rod 4, and take off the cap 3 on the pipette tip 11.

[0034] Example 2

[0035] The technical solution of this embodiment is substantially the same as that of the above-mentioned embodiment 1, except that Figure 4-Figure 9 As shown, a push-pull rod 16 consistent with the column of the placement holes 12 is slidably installed in the installation cavity, and the push-pull rod 16 is arranged below the sliding rod 4 and is vertically arranged with the sliding rod 4; an inclined wedge block 17 is provided on the side of the push-pull rod 16, and a guide groove 18 consistent with the number of columns of the placement holes 12 is opened on the sliding rod 4, and the guide groove 18 is a T-shaped groove structure with a larger upper part and a smaller lower part, and the top block 6 is a T-shaped block structure adapted to the T-shaped groove structure, and the top block 6 can be slid up and down and installed in the guide groove 18, and the protrusion at the bottom end of the top block 6 is provided with an arc-shaped protrusion 21 that can adapt to the inclined wedge surface of the inclined wedge block 17; the outer end of the push-pull rod 16 extends to the outside of the box body 1, and a spring telescopic rod structure 19 is installed between the inner end of the push-pull rod 16 and the inner wall of the box body 1.

[0036] In this embodiment, a push-pull rod 16 is provided below the sliding rod 4, and the inclined wedge block 17 on the push-pull rod 16 can be pushed upward to lift the top block 6 located in the forward direction of the inclined wedge block 17;

[0037] During specific use, the operator can first push the sliding rod 4 by hand to move the arc-surface protrusion 21 at the bottom of the top block 6 on the sliding rod 4 to the forward direction of the inclined wedge block 17; then, the operator pushes the push-pull rod 16 to slide by hand to make the inclined wedge block 17 on the side of the push-pull rod 16 abut against the arc-surface protrusion 21 at the bottom of the top block 6, and push the top block 6 upward, so as to realize the lifting of a single top block 6, thereby realizing the removal of a single pipette tip 11.

[0038] As a further improvement, the bottom of the installation cavity is provided with a guide strip 20 adapted to the two side surfaces of the push-pull rod 16 , and the cavity wall of the box body 1 is provided with a guide hole for the push-pull rod 16 to pass through, and the guide strip 20 and the guide hole serve to guide the push-pull rod 16 .

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A pipette tip recovery box for preventing aerosol contamination, characterized in that: The invention comprises a box body (1); a box cover (5) is hingedly mounted on the top of the box body; a filling layer (2) is arranged in the box body (1); a plurality of placement holes (12) arranged in an array and penetrating the filling layer (2) are provided in the filling layer (2); a limiting sleeve (15) is movably arranged below the placement holes (12); a limiting groove is provided in the limiting sleeve (15); an installation cavity is arranged below the filling layer (2); a positioning member (15) is slidably mounted in the installation cavity and arranged in an array with the placement holes (12); The box body (1) is provided with a sliding rod (4) having the same number of columns as the placement holes (12); the sliding rod (4) is provided with a top block (6) having the same number of columns as the placement holes (12); one end of the sliding rod (4) extends to the outside of the box body (1), and an elastic reset member is installed between the other end of the sliding rod (4) and the inner wall of the box body (1); a cap (3) is movably inserted at one end of the placement hole (12) away from the installation cavity, and a slot is provided at the bottom of the cap (3), and the pipette tip (11) is inserted into the slot.

2. A pipette tip recovery box for preventing aerosol contamination according to claim 1, characterized in that: One side of the top block (6) is provided with an inclined surface; the elastic reset member comprises a telescopic rod (9) and a spring (8); the spring (8) is sleeved on the telescopic rod (9); a mounting plate (7) is fixed to the end of the sliding rod (4); one end of the telescopic rod (9) is fixed to the mounting plate (7); and the other end of the telescopic rod (9) is fixed to the inner wall of the box body (1).

3. A pipette tip recovery box for preventing aerosol contamination according to claim 2, characterized in that: A limiting platform (14) is fixedly provided on the hole wall of one end of the placement hole (12) close to the installation cavity, and a limiting ring (13) matching the limiting platform (14) is fixedly provided on the outer wall of the limiting sleeve (15).

4. A pipette tip recovery box for preventing aerosol contamination according to claim 2, characterized in that: An arc-shaped protrusion (10) is fixedly provided at the middle position of the slot.

5. A pipette tip recovery box for preventing aerosol contamination according to claim 4, characterized in that: The cap (3) is made of foam.

6. A pipette tip recovery box for preventing aerosol contamination according to claim 2, characterized in that: The limiting groove matches the shape of the pipette tip (11).

7. A pipette tip recovery box for preventing aerosol contamination according to claim 2, characterized in that: The filling layer (2) and the limiting sleeve (15) are both made of foam.

8. A pipette tip recovery box for preventing aerosol contamination according to claim 1, characterized in that: A push-pull rod (16) is slidably installed in the installation cavity, which is consistent with the row of placement holes (12). The push-pull rod (16) is arranged below the sliding rod (4) and is vertically arranged with the sliding rod (4); an inclined wedge block (17) is provided on the side of the push-pull rod (16), and a guide groove (18) consistent with the number of rows of placement holes (12) is opened on the sliding rod (4), and the guide groove (18) is a T-shaped groove structure with a larger upper part and a smaller lower part. The top block (6) is a T-shaped block structure adapted to the T-shaped groove structure. The top block (6) can be slid up and down and installed in the guide groove (18), and the protrusion at the bottom end of the top block (6) is provided with an arc-shaped protrusion that can adapt to the inclined wedge surface of the inclined wedge block (17); the outer end of the push-pull rod (16) extends to the outside of the box body (1), and a spring telescopic rod structure (19) is installed between the inner end of the push-pull rod (16) and the inner wall of the box body (1).

9. A pipette tip recovery box for preventing aerosol contamination according to claim 8, characterized in that: The bottom of the installation cavity is provided with guide strips (20) adapted to the two side surfaces of the push-pull rod (16), and the cavity wall of the box body (1) is provided with guide holes for the push-pull rod (16) to pass through.

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