Adjustable multi-pipette pipettor

Abstract

The utility model belongs to the field of pipettors for pipettes, and particularly relates to an adjustable pipettor for pipettes, which comprises a pipette shell, a main pipe is fixedly connected to the top of the pipette shell, a graduated scale is arranged on the surface of the main pipe, a fixed silica gel plate is fixedly connected to an inner cavity of the pipette shell, and a sliding silica gel plate is slidably connected to the inner cavity of the pipette shell. The number of the sliding silica gel plates is multiple, and adjusting mechanisms are arranged on one side of the fixed silica gel plate and one sides of the sliding silica gel plates. The sliding silica gel plates can move along one side of the fixed silica gel plate, the first connecting rod, the second connecting rod and the third connecting rod are rotationally connected in a staggered mode, one set of sliding silica gel plates move and drive the third connecting rod at the same time, the third connecting rod pulls the second connecting rod to change the angle, and the second connecting rod pulls the first connecting rod to change the angle. And the effect of guaranteeing equal-distance adjustment among the multiple rows of gun heads through the multiple connecting rods in the adjusting mechanism is achieved.

Description

Technical Field

[0001] This utility model relates to the field of multi-stage pipettes, specifically an adjustable multi-stage pipette. Background Technology

[0002] Commonly used multi-pipettes have 8 or 12 tips, which can simultaneously transfer equal volumes of liquid from 8 or 12 test tubes. Multi-pipettes have the advantages of high precision in liquid transfer and convenient operation. They are commonly used in biological or chemical experiments. In chemiluminescence immunoassay analyzers, the use of multi-pipettes to efficiently complete precise quantitative liquid transfer and mixing operations in the chemiluminescence immunoassay process is a new design concept that has emerged in the instrument field in recent years.

[0003] However, the nozzle spacing of traditional multi-pipettes is fixed. When transferring liquids from test tubes or containers with different nozzle spacing, multi-pipettes with different nozzle spacing are required. This involves tedious manual disassembly and adjustment, making the operation more complicated and affecting the efficiency of liquid transfer. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, traditional multi-pipettes have a fixed nozzle spacing. When transferring liquids from test tubes or containers with different nozzle spacings, multi-pipettes with different nozzle spacings are required, which involves tedious manual disassembly and adjustment, resulting in complex operation and affecting the efficiency of liquid transfer. This invention proposes an adjustable multi-pipette.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an adjustable pipette, including a pipette shell, a main tube fixedly connected to the top of the pipette shell, a scale being provided on the surface of the main tube, a fixed silicone plate fixedly connected to the inner cavity of the pipette shell, a sliding silicone plate slidably connected to the inner cavity of the pipette shell, and a plurality of sliding silicone plates, with an adjustment mechanism provided on one side of the fixed silicone plate and one side of the sliding silicone plate.

[0006] The adjustment mechanism includes a first connecting rod, one side of which is rotatably connected to one side of a fixed silicone plate; a second connecting rod is rotatably connected to one side of the first connecting rod; one side of the second connecting rod is rotatably connected to one side of a sliding silicone plate; and a third connecting rod is rotatably connected to one side of the second connecting rod, one side of which is rotatably connected to one side of the sliding silicone plate.

[0007] Preferably, a gun head is fixedly connected to one side of the fixed silicone plate and one side of the sliding silicone plate. The surface of the gun head is slidably connected to the inner wall of the gun housing. A connecting pipe is fixedly connected to one side of the fixed silicone plate and one side of the sliding silicone plate. One end of the connecting pipe is fixedly connected to the inner cavity of the main pipe.

[0008] Preferably, the inner cavity of the gun housing is rotatably connected to a bidirectional screw, and one end of the bidirectional screw is fixedly connected to an adjusting handle.

[0009] Preferably, a first connecting plate is fixedly connected to one side of the fixed silicone plate, and the inner cavity of the first connecting plate is slidably connected to the surface of the bidirectional screw. A second connecting plate is fixedly connected to one side of the sliding silicone plate, and the inner cavity of the second connecting plate is threadedly connected to the surface of the bidirectional screw.

[0010] Preferably, a first guide rod is fixedly connected to the inner wall of the gun housing, and the inner cavities of the first connecting plate and the second connecting plate are slidably connected to the surface of the first guide rod.

[0011] Preferably, the inner cavity of the gun housing is slidably connected to a second guide rod, one end of the second guide rod is fixedly connected to a pressure plate, one side of the pressure plate is fixedly connected to a frosted plate, and one side of the frosted plate is in contact with one side of the first connecting plate and the second connecting plate.

[0012] Preferably, the inner cavity of the pressure plate is rotatably connected to a one-way screw, the surface of which is threadedly connected to the inner cavity of the gun housing, and a spring is fixedly connected to one side of the pressure plate, with one end of the spring fixedly connected to the inner wall of the gun housing.

[0013] The advantages of this utility model are:

[0014] This invention uses a push button on the main pipe to enable the nozzle to pick up and release liquid. The liquid passes through the nozzle into the corresponding fixed silicone plate cavity and sliding silicone plate cavity, and then enters the main pipe through the connecting tube. The fixed silicone plate and the corresponding nozzle are the central liquid picking points. The sliding silicone plate can be moved along one side of the fixed silicone plate. The first, second, and third connecting rods are alternately rotatably connected. When one set of sliding silicone plates moves, it drives the third connecting rod. The third connecting rod pulls the second connecting rod to change its angle, and the second connecting rod pulls the first connecting rod to change its angle. This achieves the effect of equal spacing adjustment between multiple nozzles through multiple connecting rods in the adjustment mechanism. It solves the problems of traditional nozzles having a fixed nozzle spacing, requiring nozzles with different nozzle spacings to be used when transferring liquids from test tubes or containers with different spacings, resulting in tedious manual disassembly and adjustment, complicated operation, and reduced liquid picking efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall device of this utility model;

[0017] Figure 2 This is a three-dimensional schematic diagram of the internal structure of the gun housing of this utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of the adjustment mechanism of this utility model;

[0019] Figure 4 This is a three-dimensional schematic diagram of the pressure plate of this utility model.

[0020] In the diagram: 1. Gun housing; 2. Main pipe; 3. Scale; 4. Fixed silicone plate; 5. Sliding silicone plate; 6. Adjustment mechanism; 601. First connecting rod; 602. Second connecting rod; 603. Third connecting rod; 7. Gun head; 8. Connecting pipe; 9. Double-acting screw; 10. Adjustment handle; 11. First connecting plate; 12. Second connecting plate; 13. First guide rod; 14. Second guide rod; 15. Pressure plate; 16. Frosted plate; 17. One-way screw; 18. Spring. Detailed Implementation

[0021] 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 scope of protection of the present utility model.

[0022] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0023] This application discloses an adjustable multi-stage pipette. (Refer to...) Figures 1 to 3 An adjustable multi-pipette includes a multi-pipette housing 1, a main pipe 2 fixedly connected to the top of the multi-pipette housing 1, a scale 3 on the surface of the main pipe 2, a fixed silicone plate 4 fixedly connected to the inner cavity of the multi-pipette housing 1, and a sliding silicone plate 5 slidably connected to the inner cavity of the multi-pipette housing 1. Multiple sliding silicone plates 5 are provided. A multi-pipette head 7 is fixedly connected to one side of the fixed silicone plate 4 and one side of the sliding silicone plate 5. The surface of the multi-pipette head 7 is slidably connected to the inner wall of the multi-pipette housing 1. A connecting tube 8 is fixedly connected to one side of the fixed silicone plate 4 and one side of the sliding silicone plate 5. One end of the connecting tube 8 is fixedly connected to the inner cavity of the main pipe 2. An adjustment mechanism 6 is provided on one side of the fixed silicone plate 4 and one side of the sliding silicone plate 5.

[0024] The adjusting mechanism 6 includes a first connecting rod 601, one side of which is rotatably connected to one side of the fixed silicone plate 4. A second connecting rod 602 is rotatably connected to one side of the first connecting rod 601, one side of the second connecting rod 602 is rotatably connected to one side of the sliding silicone plate 5, and a third connecting rod 603 is rotatably connected to one side of the second connecting rod 602. The third connecting rod 603 is rotatably connected to one side of the sliding silicone plate 5. In this adjustable pipette, the pipette housing 1 plays a major connecting role. The push button on the main tube 2 allows the pipette head 7 to pick up and dispense liquid. The liquid enters the corresponding fixed silicone plate 4 through the pipette head 7. The inner cavity of the silicone plate 4 and the inner cavity of the sliding silicone plate 5 are connected to the main pipe 2 through the connecting pipe 8. The fixed silicone plate 4 and the corresponding nozzle 7 are the central liquid collection points. The sliding silicone plate 5 can be moved along one side of the fixed silicone plate 4. The first connecting rod 601, the second connecting rod 602 and the third connecting rod 603 are alternately rotated. When a set of sliding silicone plates 5 moves, it drives the third connecting rod 603. The third connecting rod 603 pulls the second connecting rod 602 to change the angle. The second connecting rod 602 pulls the first connecting rod 601 to change the angle. Thus, the multiple connecting rods in the adjustment mechanism 6 ensure that the multiple nozzles 7 are adjusted at equal intervals.

[0025] Reference Figure 2 and Figure 3 A bidirectional screw 9 is rotatably connected to the inner cavity of the gun housing 1. An adjusting handle 10 is fixedly connected to one end of the bidirectional screw 9. A first connecting plate 11 is fixedly connected to one side of the fixed silicone plate 4. The inner cavity of the first connecting plate 11 is slidably connected to the surface of the bidirectional screw 9. A second connecting plate 12 is fixedly connected to one side of the sliding silicone plate 5. The inner cavity of the second connecting plate 12 is threadedly connected to the surface of the bidirectional screw 9. The bidirectional screw 9 and the adjusting handle 10 are coaxially fixedly connected. The adjusting handle 10 can drive the bidirectional screw 9 to rotate along the inner cavity of the gun housing 1. The fixed silicone plate 4 is fixedly connected to the inner wall of the gun housing 1. Therefore, the first connecting plate 11 is slidably connected to the middle smooth part of the bidirectional screw 9, so that the first connecting plate 11 is not affected by the rotation of the bidirectional screw 9. The sliding silicone plate 5 is threadedly connected to the threaded grooves on both sides of the bidirectional screw 9 through the second connecting plate 12. Therefore, the rotation of the bidirectional screw 9 causes the second connecting plate 12 to drive the sliding silicone plate 5 to move. And the equal spacing adjustment of the gun heads 7 is achieved through the adjusting mechanism 6.

[0026] Reference Figure 2 and Figure 3 The inner wall of the gun housing 1 is fixedly connected to a first guide rod 13. The inner cavity of the first connecting plate 11 and the inner cavity of the second connecting plate 12 are slidably connected to the surface of the first guide rod 13. With the first guide rod 13, the second connecting plate 12 moves with the thread groove of the bidirectional screw 9 and slides along the surface of the first guide rod 13, which improves the stability of the adjustment distance of the sliding silicone plate 5 and the stability when taking liquid.

[0027] Reference Figure 2 and Figure 4 A second guide rod 14 is slidably connected to the inner cavity of the gun housing 1. A pressure plate 15 is fixedly connected to one end of the second guide rod 14. A frosted plate 16 is fixedly connected to one side of the pressure plate 15. One side of the frosted plate 16 is in contact with one side of the first connecting plate 11 and the second connecting plate 12. A one-way screw 17 is rotatably connected to the inner cavity of the pressure plate 15. The surface of the one-way screw 17 is threadedly connected to the inner cavity of the gun housing 1. A spring 18 is fixedly connected to one side of the pressure plate 15. One end of the spring 18 is fixedly connected to the inner wall of the gun housing 1. Through the pressure plate 15, the pressure plate 15 is mainly connected to the gun housing via the second guide rod 14 and the one-way screw 17. The inner cavity of 1 is connected, and the second guide rod 14 can limit the movement direction of the pressure plate 15. Since the surface of the one-way screw 17 is threadedly connected to the inner cavity of the gun housing 1, the one-way screw 17 rotates along the inner cavity of the pressure plate 15, causing the pressure plate 15 to rise and fall. When the pressure plate 15 is lowered, it abuts against the first connecting plate 11 and the second connecting plate 12, further increasing the stability of the gun head 7 after adjustment. The friction force when the pressure plate 15 contacts the first connecting plate 11 and the second connecting plate 12 can be increased by the frosted plate 16. When the pressure plate 15 is lowered, the spring 18 is stretched. Due to the rebound characteristics of the spring 18, the reset efficiency of the pressure plate 15 is improved.

[0028] Working principle: The push button on the main pipe 2 causes the nozzle 7 to pick up and release liquid. The liquid enters the inner cavity of the corresponding fixed silicone plate 4 and the inner cavity of the sliding silicone plate 5 through the nozzle 7, and then enters the main pipe 2 through the connecting pipe 8. The fixed silicone plate 4 and the corresponding nozzle 7 are the central liquid picking points. The adjusting handle 10 can drive the bidirectional screw 9 to rotate along the inner cavity of the nozzle housing 1. The fixed silicone plate 4 is fixedly connected to the inner wall of the nozzle housing 1. Therefore, the first connecting plate 11 is slidably connected to the middle smooth part of the bidirectional screw 9, so that the first connecting plate 11 is not affected by the rotation of the bidirectional screw 9. The sliding silicone plate 5 is threadedly connected to the threaded grooves on both sides of the bidirectional screw 9 through the second connecting plate 12. Therefore, the rotation of the bidirectional screw 9 causes the second connecting plate 12 to move the sliding silicone plate 5. The first connecting rod 60 1. The second link 602 and the third link 603 are alternately rotatably connected. When a set of sliding silicone plates 5 moves, it drives the third link 603. The third link 603 pulls the second link 602 to change the angle. The second link 602 pulls the first link 601 to change the angle. Thus, the multiple links in the adjustment mechanism 6 ensure that the multiple gun heads 7 are adjusted at equal intervals. Since the surface of the one-way screw 17 is threaded to the inner cavity of the gun housing 1, when the one-way screw 17 rotates along the inner cavity of the pressure plate 15, it drives the pressure plate 15 to rise and fall. When the pressure plate 15 is lowered, it abuts against the first connecting plate 11 and the second connecting plate 12, further increasing the stability of the gun head 7 after adjustment. The abrasive plate 16 can increase the friction when the pressure plate 15 contacts the first connecting plate 11 and the second connecting plate 12.

[0029] 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 illustrative of the principles of this 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.

Claims

1. An adjustable gang pipette, characterized by: Including the row gun shell (1), the top of the row gun shell (1) is fixedly connected with the main pipe (2), the surface of the main pipe (2) is provided with a scale (3), the inner cavity of the row gun shell (1) is fixedly connected with a fixed silica gel plate (4), the inner cavity of the row gun shell (1) is slidably connected with a sliding silica gel plate (5), the number of the sliding silica gel plate (5) is multiple, one side of the fixed silica gel plate (4) and one side of the sliding silica gel plate (5) are provided with an adjusting mechanism (6); The adjusting mechanism (6) comprises a first connecting rod (601), one side of the first connecting rod (601) is rotatably connected to one side of the fixed silica gel plate (4), one side of the first connecting rod (601) is rotatably connected with a second connecting rod (602), one side of the second connecting rod (602) is rotatably connected to one side of the sliding silica gel plate (5), one side of the second connecting rod (602) is rotatably connected with a third connecting rod (603), one side of the third connecting rod (603) is rotatably connected to one side of the sliding silica gel plate (5).

2. An adjustable gang pipette according to claim 1, characterized in that: One side of the fixed silica gel plate (4) and one side of the sliding silica gel plate (5) are fixedly connected with a row gun head (7), the surface of the row gun head (7) is slidably connected to the inner wall of the row gun shell (1), one side of the fixed silica gel plate (4) and one side of the sliding silica gel plate (5) are fixedly connected with a connecting pipe (8), one end of the connecting pipe (8) is fixedly connected with the inner cavity of the main pipe (2).

3. An adjustable gang pipette according to claim 1, wherein: The inner cavity of the row gun shell (1) is rotatably connected with a bidirectional screw rod (9), one end of the bidirectional screw rod (9) is fixedly connected with an adjusting handle (10).

4. An adjustable gang pipette according to claim 3, wherein: One side of the fixed silica gel plate (4) is fixedly connected with a first connecting plate (11), the inner cavity of the first connecting plate (11) is slidably connected with the surface of the bidirectional screw rod (9), one side of the sliding silica gel plate (5) is fixedly connected with a second connecting plate (12), the inner cavity of the second connecting plate (12) is threadedly connected with the surface of the bidirectional screw rod (9).

5. An adjustable gang pipette according to claim 4, wherein: The inner wall of the row gun shell (1) is fixedly connected with a first guide rod (13), the inner cavities of the first connecting plate (11) and the second connecting plate (12) are slidably connected with the surface of the first guide rod (13).

6. An adjustable gang pipette according to claim 1, wherein: The inner cavity of the row gun shell (1) is slidably connected with a second guide rod (14), one end of the second guide rod (14) is fixedly connected with a pressing plate (15), one side of the pressing plate (15) is fixedly connected with a sanding plate (16), one side of the sanding plate (16) is attached to one side of the first connecting plate (11) and the second connecting plate (12).

7. An adjustable gang pipette according to claim 6, wherein: The inner cavity of the pressing plate (15) is rotatably connected with a one-way screw rod (17), the surface of the one-way screw rod (17) is threadedly connected with the inner cavity of the row gun shell (1), one side of the pressing plate (15) is fixedly connected with a spring (18), one end of the spring (18) is fixedly connected to the inner wall of the row gun shell (1).

Images