Pipetting assembly, pipettor and pipetting equipment

Abstract

The utility model belongs to the technical field of medical equipment, and relates to a pipetting assembly, a pipettor and pipetting equipment. The pipetting assembly comprises a shell and a tooth part arranged on the shell, a wire passing opening is formed in the shell, a wire passing cavity communicated with the wire passing opening is defined by the shell and the tooth part, and the wire passing opening is matched with the wire passing cavity for wire passing. The wire passing cavity is defined by the shell and the tooth piece, and the situation that the wire is extruded and damaged when the shell and the tooth piece are installed together is avoided; the wires pass through the wire passing openings and the wire passing cavities, so that the wires are collected and arranged, the pipetting assembly is prevented from being interfered by the wires during movement, the pipetting efficiency is improved, in addition, the wires can be prevented from being damaged due to pulling and friction, and the service life is further prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of medical equipment, and more specifically, to a pipetting assembly, a pipette and a pipetting device. Background Art

[0002] In order to improve the pipetting efficiency of the pipette, the pipette is often connected to a driving device, which drives the pipette to move. However, in the prior art, the wires of the pipette are mostly exposed to the outside, which makes it easy for the driving device to interfere with the wires when driving the pipette to move, and the wires may be damaged, thereby reducing the service life of the pipette. Utility Model Content

[0003] The embodiments of the present application provide a pipetting assembly, a pipette and a pipetting device, which are used to solve the problem in the prior art that the pipette wire is randomly exposed, resulting in interference with the movement of the pipette and damage to the wire.

[0004] In order to solve the above technical problems, the present application embodiment provides a pipetting component, which adopts the following technical solution:

[0005] A pipetting assembly comprises: a shell and a gear condition arranged on the shell, the shell is provided with a wire passing port, the shell and the gear condition are enclosed to form a wire passing cavity connected to the wire passing port, and the wire passing port cooperates with the wire passing cavity for passing a wire.

[0006] Furthermore, a receiving groove is provided on one side of the shell adjacent to the tooth condition, the receiving groove has an open end connected to the outside of the shell, the wire passing opening is located in the receiving groove, and the tooth condition and the groove wall of the receiving groove enclose the wire passing cavity.

[0007] Furthermore, a first guide groove communicating with the accommodating groove is provided on one side of the shell body close to the opening end.

[0008] Furthermore, the rack condition includes a mounting plate and a rack body, the mounting plate is fixedly connected to the shell, the side of the mounting plate away from the rack body and the groove wall of the accommodating groove are enclosed to form the wire passing cavity, the rack body is provided with a second guide groove arranged along the length direction, the rack body is arranged on the mounting plate or the rack body is arranged on the shell.

[0009] Further, when the rack body is arranged on the mounting plate;

[0010] The mounting plate is arranged along the length direction of the housing, or,

[0011] The mounting plate comprises a pressing plate and a fixing plate which are fixedly connected to the housing and arranged side by side, the rack body is arranged on the fixing plate, and the pressing plate and the groove wall of the accommodating groove enclose the wire passing cavity.

[0012] Furthermore, the rack body has a first surface and a third surface arranged opposite to each other, and a second surface connected between the first surface and the third surface, the first surface is connected to the mounting plate, one of the third surface and the second surface is a serrated surface, and the other is used to set the second guide groove.

[0013] Furthermore, two ends of the serrated surface are respectively provided with limiting pieces.

[0014] Furthermore, the mounting plate is connected to the shell via a threaded member; when the second guide groove is provided on the second surface, the distance between the second guide groove and the mounting plate is greater than the thickness of the threaded member protruding from the mounting plate.

[0015] In order to solve the above technical problems, the present application also provides a pipette, which adopts the following technical solution:

[0016] A pipette comprises the pipetting assembly as described above.

[0017] In order to solve the above technical problems, the present application also provides a liquid transfer device, which adopts the following technical solution:

[0018] A liquid transfer device comprises: a driving device, and the liquid transfer component or the liquid transfer device as described above, wherein the gear is connected to the driving device, and the driving device is used to drive the liquid transfer component to move up and down.

[0019] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects: in the present application, the shell and the gear condition are enclosed to form a wire passing cavity, so as to prevent the wire from being squeezed and damaged when the shell and the gear condition are installed together; and the wires are all passed through the wire passing port and the wire passing cavity, so as to realize the collection and sorting of the wires, avoid interference of the wires when the pipetting component moves, improve the pipetting efficiency, and also prevent the wires from being damaged by pulling and friction, thereby increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the scheme of the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1It is a structural schematic diagram of an embodiment of a liquid transfer assembly provided by the present application;

[0022] Figure 2 yes Figure 1 A top view of

[0023] Figure 3 yes Figure 1 Schematic diagram of the structure after hiding the tooth conditions;

[0024] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0025] Figure 5 is a structural schematic diagram of another embodiment of a liquid transfer assembly provided by the present application;

[0026] Figure 6 yes Figure 5 Enlarged view of point C in the middle;

[0027] Figure 7 It is a structural schematic diagram of an embodiment of a liquid transfer device provided by the present application;

[0028] Figure 8 yes Figure 7 A top view of

[0029] Fig. 9 yes Figure 8 Enlarged view of point B in the middle.

[0030] Figure numerals: 10, pipetting assembly; 1, shell; 11, wire port; 12, accommodating groove; 13, first guide groove; 2, gear condition; 21, mounting plate; 211, pressure plate; 212, fixing plate; 22, rack body; 23, second guide groove; 24, first surface; 25, second surface; 26, third surface; 27, limit member; 28, threaded member; 20, driving device; 201, shell; 202, guide member; 30, linear moving module. DETAILED DESCRIPTION

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0032] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0033] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0034] The present application embodiment provides a liquid transfer assembly 10, such as Figures 1 to 5 As shown, the pipetting component 10 includes: a shell 1 and a gear condition 2 arranged on the shell 1, the shell 1 is provided with a wire passing port 11, the shell 1 and the gear condition 2 are enclosed to form a wire passing cavity (not shown) connected to the wire passing port 11, and the wire passing port 11 cooperates with the wire passing cavity for passing the wire.

[0035] The working principle of a pipetting component 10 provided in an embodiment of the present application is as follows: the pipetting component 10 is applied to a pipette or a pipetting device, the housing 1 is used to accommodate the components of the pipette, and the wires of the components pass through the wire passing port 11 and the wire passing cavity; and the gear condition 2 is used to connect with the driving device 20, and the driving device 20 is used to drive the pipetting component 10 to move up and down.

[0036] The beneficial effects of a pipetting assembly 10 provided in an embodiment of the present application are as follows: in the present application, the shell 1 and the gear condition 2 are enclosed to form a wire passing cavity, so as to prevent the wire of the pipette using the pipetting assembly 10 from being squeezed and damaged when the shell 1 and the gear condition 2 are installed together; and the wires are all passed through the wire passing port 11 and the wire passing cavity, so that the wires are collected and sorted, and the pipetting assembly 10 is prevented from being interfered with by the wires when it moves, thereby improving the pipetting efficiency. In addition, the wires can be prevented from being damaged by pulling and friction, thereby increasing the service life.

[0037] like Figures 2 to 4 As shown, further, a accommodating groove 12 is provided on one side of the shell 1 adjacent to the gear condition 2, and the accommodating groove 12 has an open end (not shown) connected to the outside of the shell 1, and the wire passing opening 11 is located in the accommodating groove 12, and the gear condition 2 and the groove wall of the accommodating groove 12 enclose the wire passing cavity.

[0038] In this embodiment, the wire first passes through the wire opening 11 into the accommodating groove 12, and then passes through the open end of the accommodating groove 12 before the gear condition 2 is installed. The accommodating groove 12 provides an accommodating space for the wire to avoid squeezing the wire when installing the gear condition 2.

[0039] Furthermore, a first guide groove 13 communicating with the accommodating groove 12 is provided on one side of the housing 1 close to the opening end.

[0040] In this embodiment, the first guide groove 13 is used to guide the passing direction of the wire.

[0041] Furthermore, the first guide groove 13 has an inclined surface, and the inclined surface is inclined in a direction away from the rack member 2 .

[0042] In this embodiment, the inclined surface is inclined in the direction away from the gear condition 2. On the one hand, the inclined surface guides the wire to pass in the direction away from the gear condition 2. On the other hand, the angle between the inclined surface and the receiving groove 12 is greater than 90°, so that the wire is scratched by the shell 1 when passing through the receiving groove 12.

[0043] Furthermore, the receiving groove 12 is disposed at the upper end of the housing 1 , and the open end and the first guide groove 13 are located at the upper end surface of the housing 1 , so as to prevent the wires from gathering at the lower end of the housing 1 and affecting the pipetting.

[0044] Furthermore, the rack condition 2 includes a mounting plate 21 and a rack body 22, the mounting plate 21 is fixedly connected to the shell 1, the side of the mounting plate 21 away from the rack body 22 and the groove wall of the accommodating groove 12 are enclosed to form the wire passing cavity, and the rack body 22 is provided with a second guide groove 23 arranged along the length direction, and the rack body 22 is arranged on the mounting plate 21 or the rack body 22 is arranged on the shell 1.

[0045] In this embodiment, the second guide groove 23 is used to cooperate with the driving device 20 to achieve the limitation and guidance of the pipetting component 10 when it moves up and down, so as to prevent the driving device 20 from being separated from the pipetting component 10.

[0046] Furthermore, when the rack body 22 is disposed on the housing 1 , the rack body 22 and the housing 1 are formed integrally.

[0047] like Figure 1 and Figure 2 As shown, in one embodiment, when the rack body 22 is disposed on the mounting plate 21 , the mounting plate 21 is disposed along the length direction of the housing 1 .

[0048] In this embodiment, the mounting plate 21 is disposed along the length direction of the housing 1 so that the length of the rack body 22 is equal to the length of the housing 1 , thereby widening the moving range of the pipetting assembly 10 .

[0049] In this embodiment, the mounting plate 21 and the rack body 22 are integrally formed.

[0050] like Figures 5 and 6As shown, in another embodiment, the mounting plate 21 includes a pressure plate 211 and a fixing plate 212 which are fixedly connected to the shell 1 and arranged side by side, the rack body 22 is arranged on the fixing plate 212, and the pressure plate 211 and the groove wall of the accommodating groove 12 enclose the wire passing cavity.

[0051] In this embodiment, the end of the pressing plate 211 abuts against the end of the fixing plate 212 .

[0052] In this embodiment, after the mounting plate 21 is divided into the pressing plate 211 and the fixing plate 212, the pressing plate 211 can be removed from the housing 1 to arrange the wires again, thereby improving the efficiency of arranging the wires.

[0053] like Figure 2 As shown, further, the rack body 22 has a first surface 24 and a third surface 26 that are relatively arranged, and a second surface 25 connected between the first surface 24 and the third surface 26, the first surface 24 is connected to the mounting plate 21, and one of the third surface 26 and the second surface 25 is a serrated surface, and the other is used to set the second guide groove 23.

[0054] In this embodiment, the third surface 26 of the rack body 22 is a serrated surface, which is disposed opposite to the first surface 24 , and the second guide groove 23 is disposed on the second surface 25 .

[0055] In other embodiments, the second surface 25 of the rack body 22 is a serrated surface, the serrated surface is disposed adjacent to the first surface 24 , and the second guide groove 23 is disposed on the third surface 26 .

[0056] Furthermore, two ends of the serrated surface are respectively provided with stoppers 27 .

[0057] In this embodiment, stoppers 27 are provided at both ends of the serrated surface to prevent the driving device 20 from escaping from both ends of the rack body 22 when the driving device 20 drives the pipetting assembly 10 to move up and down, thereby improving stability and reliability.

[0058] In this embodiment, the limit member 27 is a screw, which is screwed into the serrated surface and protrudes from the serrated surface, so that the driving device 20 cannot cooperate with the serrated surface, thereby limiting the movement of the pipetting component 10, thereby preventing the driving device 20 from moving along the serrated surface and separating from the pipetting component 10.

[0059] Furthermore, the mounting plate 21 is connected to the housing 1 via a screw member 28 ; when the second guide groove 23 is provided on the second surface 25 , the distance between the second guide groove 23 and the mounting plate 21 is greater than the thickness of the screw member 28 protruding from the mounting plate 21 .

[0060] In this embodiment, the distance between the second guide groove 23 and the mounting plate 21 is limited to be greater than the thickness of the screw member 28 protruding from the mounting plate 21 to prevent the driving device 20 from colliding with the screw member 28 when driving the pipetting assembly 10 to move up and down.

[0061] In this embodiment, the threaded member 28 is a screw.

[0062] Furthermore, the cross section of the second guide groove 23 is triangular, trapezoidal, dovetail, square, arc-shaped, etc.

[0063] Preferably, the cross section of the second guide groove 23 is arc-shaped.

[0064] In this embodiment, the cross section of the second guide groove 23 is arc-shaped, so as to improve the smoothness of the driving device 20 driving the pipetting component 10 to move up and down.

[0065] The embodiment of the present application further provides a pipette, which includes the pipette assembly 10 as described above.

[0066] Furthermore, the pipette includes: a control device, a liquid storage tube, a sampling head and a piston rod, the liquid storage tube is installed on the shell 1, the sampling head is connected to the liquid storage tube, the piston rod is slidably arranged in the liquid storage tube, and the control device is installed in the shell 1 and is used to drive the piston rod to move.

[0067] In this embodiment, the control device drives the piston rod to move in the liquid storage tube, so that automatic liquid taking and releasing can be achieved.

[0068] The working principle of a pipette provided in an embodiment of the present application is as follows: the housing 1 is used to accommodate the components of the pipette (such as a control device, a liquid storage tube and a piston rod, etc.), and the wires of the components pass through the wire passing port 11 and the wire passing cavity.

[0069] The beneficial effects of a pipette provided by an embodiment of the present application are as follows: in the present application, the shell 1 and the gear condition 2 are enclosed to form a wire passing cavity, so as to prevent the wire from being squeezed and damaged when the shell 1 and the gear condition 2 are installed together; and the wires are all passed through the wire passing port 11 and the wire passing cavity, so that the wires are collected and sorted, and interference with the wires when the pipette is moved is avoided, thereby improving the pipetting efficiency. In addition, the wires can be prevented from being damaged by pulling and friction, thereby increasing the service life.

[0070] The present application also provides a liquid transfer device, such as Figures 7 to 9 As shown, the pipetting device includes: a driving device 20, and the pipetting component 10 as described above or the pipette as described above, the gear condition 2 is connected to the driving device 20, and the driving device 20 is used to drive the pipetting component 10 to move up and down.

[0071] The beneficial effects of a pipetting device provided by an embodiment of the present application are as follows: in the present application, the shell 1 and the gear condition 2 are enclosed to form a wire passing cavity, so as to avoid the wire being squeezed and damaged when the shell 1 and the gear condition 2 are installed together; and the wires are all passed through the wire passing port 11 and the wire passing cavity, so that the wires are collected and sorted, and interference with the wires when the pipette is moved is avoided, thereby improving the pipetting efficiency. In addition, the wires can be prevented from being damaged by pulling and friction, thereby increasing the service life.

[0072] Furthermore, the driving device 20 includes a housing 201, a motor (not shown) disposed in the housing 201, and a gear (not shown) connected to the motor, the gear meshes with the serrated surface of the gear condition 2, and the motor drives the gear to rotate.

[0073] Furthermore, the housing 201 includes a guide member 202 , and the guide member 202 cooperates with the second guide groove 23 .

[0074] Furthermore, the pipetting device further comprises a linear moving module 30, the motor is connected to the linear moving module 30, and the linear moving module 30 drives the motor to move horizontally.

[0075] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A liquid transfer assembly, characterized in that: include: A shell and a gear condition arranged on the shell, the shell is provided with a wire passing opening, the shell and the gear condition are enclosed to form a wire passing cavity communicated with the wire passing opening, and the wire passing opening cooperates with the wire passing cavity for passing the wire.

2. The liquid transfer assembly according to claim 1, characterized in that: A receiving groove is provided on one side of the shell body adjacent to the tooth condition, the receiving groove has an open end connected to the outside of the shell body, the wire passing opening is located in the receiving groove, and the tooth condition and the groove wall of the receiving groove enclose the wire passing cavity.

3. The liquid transfer assembly according to claim 2, characterized in that: A first guide groove communicating with the accommodating groove is provided on one side of the shell body close to the opening end.

4. The liquid transfer assembly according to any one of claims 2 to 3, characterized in that: The rack condition includes a mounting plate and a rack body, the mounting plate is fixedly connected to the shell, the side of the mounting plate away from the rack body and the groove wall of the accommodating groove form the wire passing cavity, the rack body is provided with a second guide groove arranged along the length direction, the rack body is arranged on the mounting plate or the rack body is arranged on the shell.

5. The liquid transfer assembly according to claim 4, characterized in that: When the rack body is arranged on the mounting plate; The mounting plate is arranged along the length direction of the housing, or, The mounting plate comprises a pressing plate and a fixing plate which are fixedly connected to the housing and arranged side by side, the rack body is arranged on the fixing plate, and the pressing plate and the groove wall of the accommodating groove enclose the wire passing cavity.

6. The liquid transfer assembly according to claim 4, characterized in that: The rack body has a first surface and a third surface that are arranged opposite to each other, and a second surface connected between the first surface and the third surface, the first surface is connected to the mounting plate, one of the third surface and the second surface is a serrated surface, and the other is used to set the second guide groove.

7. The liquid transfer assembly according to claim 6, characterized in that: Limiting pieces are respectively provided at both ends of the sawtooth surface.

8. The liquid transfer assembly according to claim 6, characterized in that: The mounting plate is connected to the shell through a screw member; when the second guide groove is arranged on the second surface, the distance between the second guide groove and the mounting plate is greater than the thickness of the screw member protruding from the mounting plate.

9. A pipette, characterized in that: Comprising a pipetting assembly as claimed in any one of claims 1 to 8.

10. A liquid transfer device, characterized in that: include: A driving device, and a pipetting assembly as described in any one of claims 1 to 8 or a pipette as described in claim 9, wherein the gear condition is connected to the driving device, and the driving device is used to drive the pipetting assembly to move up and down.

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