Pump head capable of being equally divided

Abstract

The utility model discloses a pump head capable of being equally divided, and particularly relates to a pipetting pump head which comprises a cabinet body, a rotating shaft is rotationally arranged in the cabinet body, and a threaded piece is arranged on the outer side wall of the rotating shaft; a plurality of sliding blocks arranged in a linear array are arranged at the bottom of the inner side of the cabinet body in a sliding mode, each sliding block is divided into a horizontal part and a vertical part according to the structure, and the vertical parts are matched with the threaded parts so as to move in the circumferential direction of the threaded parts; a suction nozzle extending to the outer side of the cabinet body is fixedly mounted on the vertical part, and a second stainless steel pipe is arranged at the end, located in the cabinet body, of the suction nozzle; the device comprises a cabinet body and further comprises an inner cabin, a plurality of plungers arranged in a linear array are arranged on the inner cabin in a sliding mode, a base plate is fixedly installed at the ends, located on the outer side of the inner cabin, of the plungers, the base plate is fixedly installed in the cabinet body, and the device further comprises a first driving mechanism which is assembled with the inner cabin so that the plungers can keep moving. The device is simple in structure, convenient and fast to operate and lower in subsequent maintenance and repair cost.

Description

Technical Field

[0001] The utility model relates to a pipetting pump head, in particular to a pump head that can be equally divided. Background Art

[0002] At present, the pipetting pump heads visible on the market include single-channel and multi-channel ones. Among them, the single-channel pump head has a fixed pitch. Refer to the publication (announcement) number: CN115055217A, publication (announcement) date: September 16, 2022. A device for a pipetting pump desorption head disclosed, which relates to the field of quantitative pipetting. The device includes a plunger device, a pipette tip picking and removing device, and a driving device. Among them, the pipette tip picking and removing device is sleeved outside the piston cylinder body and can slide axially along the piston cylinder body, and has a pipette tip picking state position and a pipette tip desorbing state position. When the pipette tip picking and removing device is in the pipette tip picking state position, the pipette tip adapter is connected to the pipette tip, so that the pipette tip is located at the pipette tip installation position; when the pipette tip picking and removing device is in the pipette tip desorbing state position, the pipette tip picking and removing device is sleeved outside the pipette tip adapter, occupying the pipette tip installation position and removing the pipette tip. This device can achieve automatic pipette tip desorption.

[0003] In the prior art including the above patent, due to the complexity of the single-channel pump head, the production and procurement costs are high, and it is also relatively complex to actually control, and the failure rate is relatively high. Content of the Utility Model

[0004] The purpose of the utility model is to provide a pump head that can be equally divided to solve the above problems.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A pump head that can be equally divided, including a cabinet body, in which a rotating shaft with a threaded part on its outer side wall is rotatably arranged;

[0006] A plurality of sliders arranged in a linear array are slidably arranged at the bottom inside the cabinet body. The sliders are divided into a horizontal part and a vertical part according to the structure. The vertical part cooperates with the threaded part to move in the circumferential direction thereof;

[0007] A pipette tip extending to the outside of the cabinet body is fixedly installed on the vertical part. One end of the pipette tip located inside the cabinet body is a second stainless steel tube;

[0008] It also includes an inner cabin, on which a plurality of plungers arranged in a linear array are slidably arranged. One end of the plurality of plungers located outside the inner cabin is fixedly installed with a substrate, and the substrate is fixedly installed inside the cabinet body. It also includes a first driving mechanism, which is assembled with the inner cabin to keep the plungers moving in a piston motion;

[0009] A ventilation pipe is fixedly connected between a first stainless steel tube fixedly communicated with the inner cabin and the second stainless steel tube.

[0010] Preferably, the first driving mechanism includes a first motor fixedly installed in the cabinet body. A second synchronous belt is sleeved between a second driving wheel fixedly installed at the output end of the first motor and a second driven wheel at the end of a threaded rod rotatably arranged in the cabinet body.

[0011] A first guide rail arranged vertically is fixedly installed in the cabinet body, and the inner cabin is slidably arranged on the first guide rail and is in threaded cooperation with the threaded rod.

[0012] Preferably, a second motor is fixedly installed in the cabinet body. A first synchronous belt is sleeved between a first driving wheel fixedly installed at the output end of the second motor and a first driven wheel fixedly installed at the end of a rotating shaft.

[0013] Preferably, a second guide rail is fixedly installed in the cabinet body, and a plurality of the sliders are arranged on the second guide rail;

[0014] A guide wheel that is rotatably arranged on the slider and is slidably connected to the threaded part is provided.

[0015] Preferably, a second fixing seat is arranged at the included angle between the horizontal part and the vertical part of the slider, and a first fixing seat that contacts an adjacent slider is fixedly arranged on one side of the slider.

[0016] Preferably, second guide rods are symmetrically arranged in the cabinet body. The inner cabin is fixedly installed through the two second guide rods, and the first driving mechanism is located in the interval between the inner cabin and the inner wall of the cabinet body. One end of the second guide rod extending out of the outer side of the top of the inner cabin is threadedly connected with a first guide rod.

[0017] Preferably, a gun head retracting plate is fixedly installed at one end of the two second guide rods extending out of the bottom of the cabinet body, and the suction nozzle extends out through a through hole on the gun head retracting plate.

[0018] Preferably, a driving board, a wire connector, a first physical zero point, and a second physical zero point are fixedly installed in the cabinet body. The driving board is used to control the operation of the first motor and the second motor. The wire connector, the first physical zero point, and the second physical zero point are connected to an external wire to energize the driving board, the first motor, and the second motor.

[0019] Preferably, fixing parts that are symmetrically arranged and rotatably installed with the rotating shaft are fixedly installed in the cabinet body.

[0020] In the above technical solution, a pump head that can be equally divided provided by the present utility model has the following beneficial effects: By driving the rotating shaft to make the slider move under the transmission of the threaded part, the technical purpose of driving the suction nozzle to be located is realized, and the structure is simple and the operation is convenient and fast. Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0022] Figure 1 Schematic diagram of the overall structure provided by the embodiment of the present utility model;

[0023] Figure 2 Schematic diagram of the partial structure provided by the embodiment of the present utility model.

[0024] Explanation of reference numerals:

[0025] 1. First guide rail; 2. Wire connector; 3. Driving board; 4. Substrate; 5. Plunger; 6. First guide rod; 7. Inner cabin; 8. First driving wheel; 9. First stainless steel pipe; 10. First synchronous belt; 11. First driven wheel; 12. Rotating shaft; 12-1. Threaded part; 13. Fixing part; 14. Second guide rod; 15. Gun-retracting head board; 16. Suction nozzle; 17. Second stainless steel pipe; 18. Vent pipe; 19. Slide block; 20. Second guide rail; 21. First physical zero point; 22. First motor; 23. Threaded rod; 24. Second driving wheel; 25. Second synchronous belt; 26. Second driven wheel; 27. Second motor; 28. Guide wheel; 29. First fixing seat; 30. Second fixing seat; 31. Second physical zero point. Detailed implementation manners

[0026] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present utility model in detail in conjunction with the drawings.

[0027] As Figure 1-2 shown, a divisible pump head includes a cabinet body, and a rotating shaft 12 with a threaded part 12-1 provided on its outer side wall is rotatably arranged in the cabinet body;

[0028] A plurality of slide blocks 19 arranged in a linear array are slidably arranged at the bottom inside the cabinet body. The slide blocks 19 are divided into a horizontal part and a vertical part according to the structure, and the vertical part cooperates with the threaded part 12-1 to move in the circumferential direction thereof;

[0029] A suction nozzle 16 extending to the outside of the cabinet body is fixedly installed on the vertical part. One end of the suction nozzle 16 located inside the cabinet body is a second stainless steel pipe 17;

[0030] It further includes an inner cabin 7, on which a plurality of plungers 5 arranged in a linear array are slidably provided. One end of the plurality of plungers 5 located outside the inner cabin 7 is fixedly installed with a substrate 4, and the substrate 4 is fixedly installed in the cabinet. It further includes a first driving mechanism, which is assembled with the inner cabin 7 to keep the plungers 5 in piston motion;

[0031] A ventilation pipe 18 is fixedly connected between a first stainless steel pipe 9 and a second stainless steel pipe 17 fixedly communicated with the inner cabin 7.

[0032] In the above technology, the driving rotating shaft 12 drives the slider 19 to move under the transmission of the threaded part 12-1, so as to realize the technical purpose of driving the suction nozzle 16 located, with a simple structure and convenient and fast operation.

[0033] As a further embodiment provided by the present utility model, the first driving mechanism includes a first motor 22 fixedly installed in the cabinet, a second driving wheel 24 fixedly installed at the output end of the first motor 22, and a second driven wheel 26 at the end of a threaded rod 23 rotatably arranged in the cabinet, with a second synchronous belt 25 sleeved therebetween;

[0034] A first guide rail 1 arranged vertically is fixedly installed in the cabinet, and the inner cabin 7 is slidably arranged on the first guide rail 1 and is in threaded cooperation with the threaded rod 23.

[0035] Specifically, the first motor 22 is used for transmission to make the inner cabin 7 move up and down under the transmission of the threaded rod 23, and cooperate with the fixed plungers 5 for pumping and discharging.

[0036] As a further embodiment provided by the present utility model, a second motor 27 is fixedly installed in the cabinet, and a first driving wheel 8 fixedly installed at the output end of the second motor 27 and a first driven wheel 11 fixedly installed at the end of a rotating shaft 12 are sleeved with a first synchronous belt 10 therebetween.

[0037] As a further embodiment provided by the present utility model, a second guide rail 20 is fixedly installed in the cabinet, and a plurality of sliders 19 are arranged on the second guide rail 20;

[0038] A guide wheel 28 rotatably arranged on the slider 19 is slidably connected with the threaded part 12-1.

[0039] As a further embodiment provided by the present utility model, a second fixing seat 30 is arranged at the included angle between the horizontal part and the vertical part of the slider 19, and a first fixing seat 29 in contact with an adjacent slider 19 is fixedly arranged on one side of the slider 19.

[0040] In the above embodiment, fixing parts 13 which are symmetrically arranged and rotatably installed with the rotating shaft 12 are fixedly installed in the cabinet.

[0041] As yet another embodiment further provided by the present utility model, second guide rods 14 are symmetrically arranged inside the cabinet, the inner cabin 7 is fixedly installed through the two second guide rods 14, and the first driving mechanism is located in the space between the inner cabin 7 and the inner wall of the cabinet, and one end of the second guide rod 14 extending outside the top of the inner cabin 7 is threadedly connected to the first guide rod 6.

[0042] As yet another embodiment further provided by the present utility model, one end of the two second guide rods 14 extending out of the bottom of the cabinet is fixedly installed with a gun withdrawing head plate 15, and the suction nozzle 16 extends out through the through hole on the gun withdrawing head plate 15.

[0043] As yet another embodiment further provided by the present utility model, a driving plate 3, a wire connector 2, a first physical zero point 21 and a second physical zero point 31 are fixedly installed inside the cabinet. The driving plate 3 is used to control the operation of the first motor 22 and the second motor 27. The wire connector 2, the first physical zero point 21 and the second physical zero point 31 are connected to the external wires so that the driving plate 3, the first motor 22 and the second motor 27 are energized.

[0044] Specifically, the wire connector 2 in the embodiment is a wire fixator, the first physical zero point 21 is connected to the live wire of the wire, and the second physical zero point 31 is connected to the live and neutral wires of the wire.

[0045] Only some exemplary embodiments of the present utility model have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present utility model.

Claims

1. A divisible pump head, characterized in that: It comprises a cabinet body, in which a rotating shaft (12) having an outer wall provided with a threaded member (12-1) is rotatably arranged; A plurality of sliding blocks (19) arranged in a linear array are slidably disposed at the bottom of the inner side of the cabinet, the sliding blocks (19) being divided into a horizontal portion and a vertical portion according to the structure, the vertical portion cooperating with the threaded member (12-1) to move in the circumferential direction thereof; The vertical portion is fixedly provided with a suction nozzle (16) extending to the outside of the cabinet, and one end of the suction nozzle (16) located inside the cabinet is a second stainless steel tube (17); It also includes an inner chamber (7), on which a plurality of plungers (5) arranged in a linear array are slidably disposed, a base plate (4) being fixedly mounted on one end of the plurality of plungers (5) located outside the inner chamber (7), and the base plate (4) being fixedly mounted inside the cabinet, and a first driving mechanism being assembled with the inner chamber (7) so as to enable the plungers (5) to maintain piston motion; A ventilation pipe (18) is fixedly connected between the first stainless steel pipe (9) and the second stainless steel pipe (17) which are fixedly connected on the inner cabin (7).

2. The equally divisible pump head according to claim 1, characterized in that: The first driving mechanism comprises a first motor (22) fixedly mounted in the cabinet, a second synchronous belt (25) being sleeved between a second driving wheel (24) fixedly mounted at the output end of the first motor (22) and a second driven wheel (26) at the end of a threaded rod (23) rotatably arranged in the cabinet; A first guide rail (1) arranged vertically is fixedly installed in the cabinet, and the inner compartment (7) is slidably arranged on the first guide rail (1) and threadably engaged with the threaded rod (23).

3. The equally divisible pump head according to claim 1, characterized in that: A second motor (27) is fixedly installed in the cabinet, and a first synchronous belt (10) is sleeved between a first driving wheel (8) fixedly installed at the output end of the second motor (27) and a first driven wheel (11) fixedly installed at the end of the rotating shaft (12).

4. The equally divisible pump head according to claim 1, characterized in that: A second guide rail (20) is fixedly installed in the cabinet, and a plurality of slide blocks (19) are arranged on the second guide rail (20); The slider (19) is rotatably provided with a guide wheel (28) which is slidably connected to the threaded member (12-1).

5. The equally divisible pump head according to claim 1, characterized in that: A second fixing seat (30) is provided at the angle between the horizontal portion and the vertical portion of the slider (19), and a first fixing seat (29) in contact with an adjacent slider (19) is fixedly provided on one side of the slider (19).

6. The equally divisible pump head according to claim 1, characterized in that: Second guide rods (14) are symmetrically arranged in the cabinet, the inner cabin (7) is fixedly installed by means of the two second guide rods (14), and the first driving mechanism is located in the interval between the inner cabin (7) and the inner wall of the cabinet, and one end of the second guide rod (14) extending out of the top outer side of the inner cabin (7) is threadedly connected to the first guide rod (6).

7. The equally divisible pump head according to claim 6, characterized in that: One end of the two second guide rods (14) extending out of the bottom of the cabinet is fixedly mounted with a gun retracting head plate (15), and the suction nozzle (16) extends out from a through hole on the gun retracting head plate (15).

8. The equally divisible pump head according to claim 1, characterized in that: A drive board (3), a wire connector (2), a first physical 0 point (21) and a second physical 0 point (31) are fixedly installed in the cabinet; the drive board (3) is used to control the operation of the first motor (22) and the second motor (27); the wire connector (2), the first physical 0 point (21) and the second physical 0 point (31) are connected to external wires to energize the drive board (3), the first motor (22) and the second motor (27).

9. The equally divisible pump head according to claim 1, characterized in that: A fixing part (13) which is symmetrically arranged and rotatably mounted with the rotating shaft (12) is fixedly installed in the cabinet.

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