Pipettor with adjustable pitch

Abstract

The utility model discloses a kind of adjustable hole distance pipettor, including the base of telescopic support pole being equipped with top, the telescopic support pole includes the movable rod of vertical arrangement, the movable rod top is fixed with support plate, multiple pipetting mechanisms are evenly provided around support plate, the pipetting mechanism includes a pair of guide rail connected with support plate, at least two sliding seats are connected on the guide rail, the sliding seat is equipped with jack, the jack is built-in pipettor body, and telescopic frame is connected between adjacent sliding seat.In the utility model, compared with prior art, the structure of the telescopic support pole, the support plate and the pipetting mechanism are set around the telescopic support pole, the position of the pipettor body is adjusted, so that the pipettor body is connected with different test tubes, to meet more experimental requirements.

Description

Technical Field

[0001] This utility model relates to the field of pipette technology, and in particular to a pipette with adjustable aperture spacing. Background Technology

[0002] In chemical and biological experiments, pipettes are frequently used to transfer liquids safely and quantitatively. An existing patent (publication number: CN216910358U) discloses a pipette with adjustable aperture spacing. This utility model utilizes a roller, a conveyor belt, a U-shaped block, a rotating rod, and a motor to move the first and second dispensing tubes, meeting the need for multiple experiments with a single liquid. However, in practical applications, pipettes have various structures. The aforementioned utility model uses a structure with the dispensing holes arranged in a straight line, and the position is adjusted by moving left and right during pipetting. However, there are currently pipettes in the field with dispensing holes arranged around a center, generally used with a circular test tube rack. Their aperture spacing is generally not adjustable, requiring repeated replacement of pipettes to adjust the position, which is inconvenient. Therefore, we have improved a pipette with adjustable aperture spacing. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a pipette with adjustable orifice spacing.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] Design a pipette with adjustable aperture spacing, including a base with a telescopic support rod at the top. The telescopic support rod includes a vertically arranged movable rod, and a support plate is fixed to the top of the movable rod. Multiple pipetting mechanisms are evenly arranged around the support plate. Each pipetting mechanism includes a pair of guide rails connected to the support plate. At least two sliding seats are connected to the guide rails. Each sliding seat has an insertion hole, and the pipette body is placed inside the insertion hole. A telescopic frame is connected between adjacent sliding seats.

[0006] In the above solution, the base includes a detachably connected base plate and an anti-slip plate, and a suction cup is installed on the bottom of the anti-slip plate.

[0007] In the above scheme, a threaded post is fixed at the top center of the anti-slip plate, and a threaded groove matching the threaded post is opened at the bottom of the base plate.

[0008] In the above scheme, the telescopic support rod includes a sleeve connected to the base plate via a rotating seat, and the movable rod slides in conjunction with the inner wall of the sleeve.

[0009] In the above scheme, the side of the support plate is provided with an insertion groove for inserting the guide rail, and the inner wall of the insertion groove is fixed with a magnetic sheet that is magnetically connected to the guide rail. A limit plate is fixed at the end of the guide rail away from the support plate.

[0010] In the above scheme, the telescopic frame includes two sets of connecting arms one and two arranged in a V-shape. The first end of the connecting arm one and the second end of the connecting arm two is connected to the sliding seat through a rotating shaft, and the other end of the connecting arm one and the second end of the connecting arm two are respectively connected to another set of connecting arms one and the second end of the connecting arm two through a damping rotating shaft.

[0011] In the above scheme, a mounting plate is fixed on the sliding seat near the support plate. The support plate is evenly provided with multiple sets of mounting grooves, and the mounting plate is locked to the mounting grooves by screws.

[0012] The advantages and beneficial effects of this utility model are as follows: By setting a telescopic support rod, a support plate, and a pipetting mechanism, the pipette body is placed in the insertion hole of the sliding seat to perform pipetting operations on the test tubes located in the test tube rack. Then, by adjusting the telescopic frame, the sliding seat moves along the guide rail to adjust the distance between adjacent sliding seats, thereby adjusting the distance between the insertion holes. Compared with the prior art, the structure of the pipette body surrounding the telescopic support rod makes it easier to adjust the position of the pipette body, so that the pipette body can be connected with different test tubes to meet more experimental needs. By setting a base plate, anti-slip plate, suction cup, threaded post, and threaded groove, the suction cup is used to adsorb and fix the anti-slip plate to the top center of the test tube rack, improving stability. By rotating the anti-slip plate, the threaded post and threaded groove are separated, thus facilitating the disassembly of the base plate and anti-slip plate. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a schematic diagram of the structure of a pipette with adjustable orifice spacing proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the assembly structure of the pipetting mechanism and support plate of a pipette with adjustable aperture spacing proposed in this utility model.

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0017] Figure 4This is a schematic diagram of the base of a pipette with adjustable aperture spacing proposed in this utility model.

[0018] In the diagram: Base 1, Base plate 101, Anti-slip plate 102, Suction cup 103, Threaded post 104, Threaded groove 105, Rotating seat 2, Sleeve 3, Movable rod 4, Support plate 5, Pipette mechanism 6, Guide rail 61, Limiting plate 62, Sliding seat 63, Pipette body 64, Insertion hole 65, Telescopic frame 66, Connecting arm one 661, Connecting arm two 662, Rotating shaft 663, Damping rotating shaft 664, Mounting plate 67, Screw 68, Mounting groove 7, Insertion groove 8, Magnetic sheet 9. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a pipette with adjustable aperture spacing, including a base 1 with a telescopic support rod on the top, the telescopic support rod including a vertically arranged movable rod 4;

[0021] Furthermore, the base 1 includes a detachably connected base plate 101 and an anti-slip plate 102, with a suction cup 103 installed on the bottom of the anti-slip plate 102;

[0022] Furthermore, a threaded post 104 is fixed at the top center of the anti-slip plate 102, and a threaded groove 105 matching the threaded post 104 is opened at the bottom of the base plate 101. The threaded post 10 is threadedly connected to the threaded groove 105.

[0023] Specifically, by setting up a base plate 101, an anti-slip plate 102, a suction cup 103, a threaded post 104, and a threaded groove 105, the suction cup 103 is used to attach and fix the anti-slip plate 102 to the top center of the test tube rack, thereby improving stability. By rotating the anti-slip plate 102, the threaded post 104 and the threaded groove 105 are separated, thereby facilitating the disassembly of the base plate 101 and the anti-slip plate 102.

[0024] Furthermore, the telescopic support rod includes a sleeve 3 connected to the base plate 101 via a rotating seat 2. The rotating seat 2 is fixed on the base plate 101. The movable rod 4 slides with the inner wall of the sleeve 3, and a fastening screw that abuts against the movable rod is connected to the sleeve 3. By rotating the fastening screw, the movable rod can be locked, thereby keeping the total length of the telescopic support rod unchanged. The telescopic support rod is actually a disclosed feature, and its specific structure will not be described further.

[0025] A support plate 5 is fixed to the top of the movable rod 4. Multiple pipetting mechanisms 6 are evenly arranged around the support plate 5. Each pipetting mechanism 6 includes a pair of guide rails 61 connected to the support plate 5.

[0026] Furthermore, the side of the support plate 5 is provided with an insertion groove 8 for inserting the guide rail 61. The inner wall of the insertion groove 8 is fixed with a magnetic sheet 9 that is magnetically connected to the guide rail 61. The end of the guide rail 61 near the support plate 5 is coated with a magnetic coating that has the opposite magnetic properties to the magnetic sheet 9. The magnetic force is used to attract and fix the guide rail 61 and the magnetic sheet 9, which facilitates the installation and removal of the guide rail 61. The end of the guide rail 61 away from the support plate 5 is fixed with a limiting plate 62. The two ends of the limiting plate 62 protrude from the guide rail 61 to prevent the sliding seat 63 from disengaging from the guide rail 61.

[0027] At least two sliding seats 63 are connected to the guide rail 61. The sliding seats 63 are provided with insertion holes 65. The pipette body 64 is placed inside the insertion hole 65. The inner wall of the insertion hole 65 is covered with a rubber pad to increase the friction with the pipette body 64 and prevent the pipette body 64 from shaking in the insertion hole 65. A telescopic frame 66 is connected between adjacent sliding seats 63.

[0028] Furthermore, the telescopic frame 66 includes two sets of connecting arms 661 and 662 arranged in a V-shape. One end of the connecting arms 661 and 662 is connected to the sliding seat 63 via a pivot 663. The other ends of the connecting arms 661 and 662 are respectively connected to another set of connecting arms 661 and 662 via a damping pivot 664.

[0029] Specifically, by setting up a telescopic support rod, a support plate 5, and a pipetting mechanism, the pipette body 64 is placed in the insertion hole 65 of the sliding seat 63 to perform pipetting operations on test tubes located in the test tube rack. Then, by adjusting the telescopic frame 66, the sliding seat 63 is moved along the guide rail 61 to adjust the distance between adjacent sliding seats, thereby adjusting the distance between the insertion holes 65. Compared with the prior art, the structure of the pipette body 64 surrounding the telescopic support rod makes it easier to adjust the position of the pipette body 64, so that the pipette body 64 can be connected with different test tubes to meet more experimental needs.

[0030] Furthermore, a mounting plate 67 is fixed on the sliding seat 63 near the support plate 5. The support plate 5 is evenly provided with multiple sets of mounting grooves 7. Each set of mounting grooves 7 is equidistant from the radial direction of the support plate 5. The mounting plate 67 is locked to the mounting grooves 7 by screws 68. By connecting the mounting plate 67 to different mounting grooves 7, the position of the sliding seat 63 near the support plate 5 is adjusted and the sliding seat 63 is locked to prevent it from sliding along the guide rail 61, thereby improving the working stability of the pipette body 64.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A distance-adjustable pipette comprising a base (1) provided with a telescopic support rod at the top, characterized in that, The telescopic supporting rod comprises a vertically arranged movable rod (4), a supporting plate (5) is fixed at the top end of the movable rod (4), a plurality of pipetting mechanisms (6) are uniformly arranged around the supporting plate (5), the pipetting mechanism (6) comprises a pair of guide rails (61) connected with the supporting plate (5), at least two sliding seats (63) are connected with the guide rails (61), an insertion hole (65) is formed in the sliding seat (63), a pipettor body (64) is arranged in the insertion hole (65), and a telescopic frame (66) is connected between adjacent sliding seats (63).

2. The adjustable pitch pipette of claim 1, wherein, The base (1) comprises a detachably connected bottom plate (101) and an anti-skid plate (102), and the anti-skid plate (102) is provided with a suction disc (103) at the bottom.

3. A volumetrically adjustable pipette according to claim 2, wherein, The anti-skid plate (102) is provided with a threaded column (104) at the top center, and the bottom plate (101) is provided with a threaded groove (105) matched with the threaded column (104) at the bottom.

4. The adjustable pitch pipette of claim 2, wherein, The telescopic supporting rod comprises a sleeve (3) connected with the bottom plate (101) through a rotating seat (2), and the movable rod (4) is in sliding fit with the inner wall of the sleeve (3).

5. The adjustable pitch pipette of claim 1, wherein, The supporting plate (5) is provided with an insertion groove (8) for inserting the guide rail (61) at the side, the inner wall of the insertion groove (8) is fixedly provided with a magnetic sheet (9) magnetically connected with the guide rail (61), and the guide rail (61) is fixedly provided with a limiting plate (62) away from the supporting plate (5).

6. The adjustable pitch pipette of claim 1, wherein, The telescopic frame (66) comprises two groups of V-shaped connecting arms (661) and connecting arms (662), the connecting arms (661) and the connecting arms (662) are connected with the sliding seat (63) through a rotating shaft (663) at the intersecting end, and the other ends of the connecting arms (661) and the connecting arms (662) are connected with the other group of connecting arms (661) and connecting arms (662) through a damping rotating shaft (664).

7. The adjustable pitch pipette of claim 1, wherein, The sliding seat (63) close to the supporting plate (5) is fixedly provided with a mounting plate (67), the supporting plate (5) is uniformly provided with a plurality of mounting grooves (7), and the mounting plate (67) is locked with the mounting groove (7) through a screw (68).

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