A rotatable multi-channel pipettor

Abstract

The utility model belongs to pipette field, concretely relates to a rotatable multi -channel pipette, including frame, the surface fixed mounting of frame has the cylinder, the cylinder rod upper end fixed connection of cylinder has the support column, support column and frame sliding connection, the outside of support column is equipped with the hanger plate through bearing installation, be provided with the adjusting mechanism on the hanger plate, the upper end fixed mounting of hanger plate has the air pump, the suction pipe of air pump penetrates hanger plate and with hanger plate sliding connection, the suction pipe outside fixed connection of air pump has the hollow disc, be provided with the liquid taking mechanism on the hollow disc. The utility model drives half gear to rotate through motor, further to make half gear and the gear ring cooperation, further to make the hanger plate relative support column rotation adjustment position, and through the spring action on the slip ring, further to make the pin and the slot cooperation on the hanger plate of hanger plate limit, make the device liquid taking convenient replacement liquid taking mechanism's position carry out pipetting.

Description

Technical Field

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

[0002] Utility model patent CN220900457U discloses a pipette, including a support, a first fixing plate fixed at the top axis of the support, a second fixing plate fixed at the top of the first fixing plate, several support plates fixed to the outside of the second fixing plate, several pipette bodies arranged on the outside of the support plates, a handle fixed to the outside of the pipette body and placed on the outside of the support plate, and a protective component on one side of the pipette body, the protective component including several fixing brackets and several baffles, which are inserted into the third limiting groove through connecting columns. When the force of pulling the lever is released, the spring force causes the locking block to be inserted into the locking groove. The baffles cover the outside of the needle of the suspended pipette body to prevent external contaminants from contacting the needle position of the pipette body, and to prevent the possibility of the needle of the pipette body being contaminated by the external environment when not in use, thereby improving the cleanliness of the pipette body when suspended.

[0003] However, the device has certain shortcomings in use. It is not convenient to adjust and control the simultaneous transfer of liquid to multiple containers. Also, it is not convenient to adjust the position of the liquid dispensing mechanism to transfer liquid after it has been taken. Utility Model Content

[0004] The purpose of this invention is to provide a rotatable multichannel pipette, which solves the problems that the device is not convenient to adjust and control to pipette multiple containers at the same time, and that the device is not convenient to adjust the position of the liquid dispensing mechanism after liquid dispensing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotatable multichannel pipette, comprising a frame, a cylinder fixedly mounted on the surface of the frame, a support column fixedly connected to the upper end of the cylinder rod of the cylinder, the support column and the frame being slidably connected, a hanging plate mounted on the outer side of the support column via a bearing, an adjustment mechanism provided on the hanging plate, an air pump fixedly mounted on the upper end of the hanging plate, a suction tube of the air pump passing through the hanging plate and slidably connected to the hanging plate, a hollow disk fixedly connected to the outer side of the suction tube of the air pump, and a liquid-taking mechanism provided on the hollow disk.

[0006] Preferably, the adjusting mechanism includes a gear ring. A gear ring is fixedly connected to the outer side of the support column. A motor is fixedly mounted on the upper end of the hanging plate. The motor's shaft passes through the hanging plate and is rotatably connected to it. A half-gear is fixedly connected to the lower end of the motor's shaft. A fixing ring is fixedly connected to the outer side of the support column. A slip ring is slidably connected to the outer side of the support column. A spring is provided on the outer side of the support column. The motor drives the half-gear to rotate, causing the half-gear to engage with the gear ring, thereby allowing the hanging plate to rotate relative to the support column and adjust its position. The spring acts on the slip ring, causing the gear to engage with a slot on the hanging plate to limit its position. This facilitates changing the position of the liquid-taking mechanism for liquid transfer after the device has taken liquid.

[0007] Preferably, a guide rod is fixedly connected to the upper end of the slip ring, and the guide rod is slidably connected to the fixed ring. The guide rod guides the movement of the slip ring.

[0008] Preferably, one end of the spring is fixedly connected to the fixed ring, and the other end of the spring is fixedly connected to the slip ring. By providing the spring, the slip ring can be easily reset.

[0009] Preferably, the lower end of the slip ring is fixedly connected to a tooth, and the tooth is slidably connected to the hanging plate. The tooth limits the movement of the hanging plate.

[0010] Preferably, the liquid-collecting mechanism includes liquid-collecting tubes. Multiple evenly distributed liquid-collecting tubes are fixedly connected inside the hollow disk. A connecting plate is fixedly connected inside each liquid-collecting tube. A sealing block is slidably connected inside each liquid-collecting tube. A sliding rod is fixedly connected to the lower end of the connecting plate. The sliding rod and the sealing block are slidably connected, and a compression spring is provided on the outer side of the sliding rod. By using an air pump to draw air, a negative pressure is created inside the hollow disk, which in turn creates a negative pressure inside the multiple liquid-collecting tubes. This causes the sealing block to slide within the liquid-collecting tubes, allowing for simultaneous pipetting of multiple test solutions, making the device more efficient.

[0011] Preferably, one end of the compression spring is fixedly connected to the connecting plate, and the other end of the compression spring is fixedly connected to the sealing block. By providing the compression spring, the sealing block can be easily reset.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses a motor to drive a half gear to rotate, which in turn causes the half gear to engage with the gear ring, thereby allowing the hanging plate to rotate relative to the support column to adjust its position. Furthermore, a spring acts on the slip ring, which causes the insert tooth to engage with the slot on the hanging plate to limit the position of the hanging plate. This makes it easy to change the position of the liquid dispensing mechanism for liquid transfer after the device has taken liquid.

[0014] 2. This utility model uses an air pump to create negative pressure inside the hollow plate, which in turn creates negative pressure inside multiple liquid collection tubes. This causes the sealing block to slide inside the liquid collection tubes, allowing for simultaneous transfer of multiple test liquids, making the device more efficient in liquid transfer. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged view of point A;

[0017] Figure 3 This utility model Figure 1 A cross-sectional view of a hollow disk;

[0018] Figure 4 This utility model Figure 3 A cross-sectional view of the liquid collection tube.

[0019] In the diagram: 1. Frame; 2. Cylinder; 3. Support column; 4. Hanging plate; 5. Adjustment mechanism; 6. Air pump; 7. Hollow disc; 8. Liquid taking mechanism; 51. Gear ring; 52. Motor; 53. Half gear; 54. Fixed ring; 55. Slip ring; 56. Guide rod; 57. Spring; 58. Tooth; 81. Liquid taking tube; 82. Connecting plate; 83. Sealing block; 84. Slide rod; 85. Compression spring. Detailed Implementation

[0020] 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 protection scope of the present utility model.

[0021] Please see Figure 1 A rotatable multichannel pipette includes a frame 1, a cylinder 2 fixedly mounted on the surface of the frame 1, a support column 3 fixedly connected to the upper end of the cylinder rod of the cylinder 2, the support column 3 and the frame 1 being slidably connected, a hanging plate 4 being mounted on the outer side of the support column 3 via a bearing, an adjustment mechanism 5 being provided on the hanging plate 4, an air pump 6 being fixedly mounted on the upper end of the hanging plate 4, a suction tube of the air pump 6 passing through the hanging plate 4 and being slidably connected to the hanging plate 4, a hollow disk 7 being fixedly connected to the outer side of the suction tube of the air pump 6, and a liquid dispensing mechanism 8 being provided on the hollow disk 7.

[0022] Please see Figures 1-2The adjusting mechanism 5 includes a gear ring 51. The gear ring 51 is fixedly connected to the outer side of the support column 3. A motor 52 is fixedly installed at the upper end of the hanging plate 4. The rotating shaft of the motor 52 passes through the hanging plate 4 and is rotatably connected to the hanging plate 4. A half gear 53 is fixedly connected to the lower end of the rotating shaft of the motor 52. A fixing ring 54 is fixedly connected to the outer side of the support column 3. A sliding ring 55 is slidably connected to the outer side of the support column 3. A guide rod 56 is fixedly connected to the upper end of the sliding ring 55. The guide rod 56 and the fixing ring 54 are slidably connected. The movement of the sliding ring 55 is guided by the guide rod 56. A spring 57 is provided on the outer side of the support column 3. One end of the spring 57 is fixed to the fixing ring 54. The other end of the spring 57 is fixedly connected to the slip ring 55. By setting the spring 57, the slip ring 55 can be easily reset. The lower end of the slip ring 55 is fixedly connected to the insert tooth 58, which is slidably connected to the hanging plate 4. By setting the insert tooth 58, the hanging plate 4 is limited. The motor 52 drives the half gear 53 to rotate, which in turn makes the half gear 53 cooperate with the tooth ring 51, thereby allowing the hanging plate 4 to rotate relative to the support column 3 to adjust its position. The spring 57 acts on the slip ring 55, which makes the insert tooth 58 cooperate with the slot on the hanging plate 4 to limit the hanging plate 4, making it easy to change the position of the liquid dispensing mechanism 8 for liquid transfer after the device takes liquid.

[0023] Please see Figure 1 , Figure 3 , Figure 4 The liquid collection mechanism 8 includes a liquid collection tube 81. Multiple evenly distributed liquid collection tubes 81 are fixedly connected inside the hollow disk 7. A connecting plate 82 is fixedly connected inside the liquid collection tube 81. A sealing block 83 is slidably connected inside the liquid collection tube 81. A sliding rod 84 is fixedly connected to the lower end of the connecting plate 82. The sliding rod 84 and the sealing block 83 are slidably connected. A compression spring 85 is provided on the outside of the sliding rod 84. One end of the compression spring 85 is fixedly connected to the connecting plate 82, and the other end of the compression spring 85 is fixedly connected to the sealing block 83. By setting the compression spring 85, the sealing block 83 can be easily reset. By the suction of the air pump 6, a negative pressure is formed inside the hollow disk 7, which in turn forms a negative pressure inside the multiple liquid collection tubes 81, thereby causing the sealing block 83 to slide inside the liquid collection tube 81. Multiple test liquids can be transferred simultaneously, making the liquid transfer of the device more efficient.

[0024] The specific implementation process of this utility model is as follows: In use, cylinder 2 is activated, driving the support column 3 to rise and fall, allowing the support column 3 to slide within the frame 1, enabling the liquid collection tube 81 to enter the receiving tube. Then, air pump 6 is activated, drawing air from the hollow disk 7, creating a negative pressure within the liquid collection tube 81. This causes the sealing block 83 to slide within the liquid collection tube 81, allowing the liquid collection tube 81 to draw liquid from the receiving tube. The air pump 6 draws air, creating a negative pressure within the hollow disk 7, which in turn creates negative pressure within multiple liquid collection tubes 81, causing the sealing block 83 to slide within the liquid collection tubes 81. This allows for simultaneous transfer of multiple test solutions, making the device more efficient. Then, cylinder 2 is activated to drive... The moving support column 3 is reset, causing the liquid extraction tube 81 and the receiving tube to separate. The motor 52 is started, and the motor 52 drives the half gear 53 to rotate, which in turn drives the gear ring 51 to rotate. The gear ring 51 drives the hanging plate 4 to rotate, so that the hanging plate 4 rotates relative to the support column 3 to adjust its position. During this process, the slot and the insert tooth 58 on the hanging plate 4 are misaligned, which causes the insert tooth 58 to move upward, which in turn causes the slip ring 55 to move upward. The movement of the slip ring 55 compresses the spring 57, until the half gear 53 and the gear ring 51 are disengaged. The spring 57 acts on the slip ring 55, which causes the insert tooth 58 and the slot on the hanging plate 4 to cooperate to limit the position of the hanging plate 4, so that after the device extracts liquid, it is easy to change the position of the liquid extraction mechanism 8 for liquid transfer.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotatable multichannel pipette, comprising a frame (1), characterized in that: A cylinder (2) is fixedly installed on the surface of the frame (1). A support column (3) is fixedly connected to the upper end of the cylinder rod of the cylinder (2). The support column (3) and the frame (1) are slidably connected. A hanging plate (4) is installed on the outside of the support column (3) through a bearing. An adjustment mechanism (5) is provided on the hanging plate (4). An air pump (6) is fixedly installed on the upper end of the hanging plate (4). The suction pipe of the air pump (6) passes through the hanging plate (4) and is slidably connected to the hanging plate (4). A hollow plate (7) is fixedly connected to the outside of the suction pipe of the air pump (6). A liquid taking mechanism (8) is provided on the hollow plate (7).

2. The rotatable multichannel pipette according to claim 1, characterized in that: The adjustment mechanism (5) includes a gear ring (51). The gear ring (51) is fixedly connected to the outer side of the support column (3). A motor (52) is fixedly installed at the upper end of the hanging plate (4). The rotating shaft of the motor (52) passes through the hanging plate (4) and is rotatably connected to the hanging plate (4). A half gear (53) is fixedly connected to the lower end of the rotating shaft of the motor (52). A fixing ring (54) is fixedly connected to the outer side of the support column (3). A slip ring (55) is slidably connected to the outer side of the support column (3). A spring (57) is provided on the outer side of the support column (3).

3. A rotatable multichannel pipette according to claim 2, characterized in that: The upper end of the slip ring (55) is fixedly connected to a guide rod (56), and the guide rod (56) and the fixed ring (54) are slidably connected.

4. A rotatable multichannel pipette according to claim 2, characterized in that: One end of the spring (57) is fixedly connected to the fixed ring (54), and the other end of the spring (57) is fixedly connected to the slip ring (55).

5. A rotatable multichannel pipette according to claim 2, characterized in that: The lower end of the slip ring (55) is fixedly connected to a tooth (58), and the tooth (58) is slidably connected to the hanging plate (4).

6. A rotatable multichannel pipette according to claim 1, characterized in that: The liquid taking mechanism (8) includes a liquid taking tube (81). Multiple evenly distributed liquid taking tubes (81) are fixedly connected inside the hollow disk (7). A connecting plate (82) is fixedly connected inside the liquid taking tube (81). A sealing block (83) is slidably connected inside the liquid taking tube (81). A slide rod (84) is fixedly connected to the lower end of the connecting plate (82). The slide rod (84) and the sealing block (83) are slidably connected. A compression spring (85) is provided on the outside of the slide rod (84).

7. A rotatable multichannel pipette according to claim 6, characterized in that: One end of the compression spring (85) is fixedly connected to the connecting plate (82), and the other end of the compression spring (85) is fixedly connected to the sealing block (83).

Images