Pipetting device with quick change structure

Abstract

This utility model discloses a pipetting device with a quick-disassembly structure, including a pipetting arm, a first quick-disassembly structure, a side wall, and a base; the pipetting arm is detachably connected to the top of the side wall via the first quick-disassembly structure; the side wall is detachably connected to the base. This pipetting device with a quick-disassembly structure enables rapid positioning and installation of the pipetting arm and convenient disassembly of the base side wall.

Description

Technical Field

[0001] This utility model belongs to the technical field of pipetting equipment, and in particular relates to a pipetting device with a quick loading and unloading structure. Background Technology

[0002] Existing pipetting equipment lacks a quick-assembly and disassembly mechanism. The installation of its pipetting arms requires manual positioning, adjustment, and fixing, which is time-consuming and labor-intensive. When pipetting arms need to be replaced, it results in significant downtime, impacting production efficiency. Furthermore, the lack of installation precision means that large installation errors will affect the production quality of the pipetting equipment. Improper installation and disassembly can also easily damage the pipetting equipment, leading to high maintenance costs. In addition, it presents the following problems regarding transportation, assembly, and size:

[0003] 1. In terms of transportation, the overall structure cannot be disassembled, which occupies a lot of space and increases transportation costs; the bulky integrated design is easily damaged by collisions during handling; in addition, it has poor flexibility and is difficult to adapt to the space constraints of different transportation tools.

[0004] 2. Assembly: Installation requires professional tools and technicians, and disassembly is equally complex; in case of failure, the entire unit must be sent for repair, and modules cannot be replaced quickly, resulting in extended downtime; in addition, there are compatibility issues, and connections with other devices may require fixed interfaces, making it difficult to adapt to diverse scenarios.

[0005] 3. Size: It cannot be compressed, so it may not be able to be installed in small laboratories or high-density equipment layouts; in addition, it is inconvenient to store, and occupies storage space when idle for a long time, which is especially unfriendly to the batch storage of multiple devices. Summary of the Invention

[0006] To address the shortcomings of the existing technology, this utility model aims to provide a pipetting device with a quick-release structure, which can achieve quick positioning and installation between the pipetting arm and the side wall of the base, and convenient disassembly.

[0007] To achieve the above objectives, this utility model provides a pipetting device with a quick-load and unload structure, including a pipetting arm, a first quick-load and unload structure, a side wall, and a base; the pipetting arm is detachably connected to the top of the side wall through the first quick-load and unload structure; the side wall is connected to the base.

[0008] In one embodiment, the first quick-loading and unloading structure includes a first quick-loading and unloading component and a second quick-loading and unloading component; the first quick-loading and unloading component and the second quick-loading and unloading component form a mutually cooperating quick positioning structure and a locking structure; the first quick-loading and unloading component is connected to the side wall; the pipette arm is fixedly connected to the second quick-loading and unloading component and detachably connected to the first quick-loading and unloading component through the second quick-loading and unloading component; and the second quick-loading and unloading component and the first quick-loading and unloading component are locked or unlocked to each other through the locking structure.

[0009] In one embodiment, the first quick-release assembly includes a first plate and a second plate, the second plate being connected to the first plate on the side adjacent to the second quick-release assembly; the second plate is provided with a quick-positioning slot; the second quick-release assembly includes a third plate and a fourth plate, the fourth plate being connected to one side of the third plate; the quick-positioning slot and the fourth plate form a mutually cooperating pre-positioning structure; the fourth plate is inserted into the quick-positioning slot and the pre-positioning structure quickly positions the fourth plate; the first plate and the third plate form the locking structure and a precision positioning structure; the quick-positioning structure includes the pre-positioning structure and the precision positioning structure; the pipette arm is fixedly connected to the fourth plate and the first plate is connected to the side wall; or the pipette arm is fixedly connected to the third plate and the second plate is connected to the side wall.

[0010] In one embodiment, the second plate extends on both sides and bends inward to form the U-shaped quick positioning slot.

[0011] In one embodiment, protrusions are formed on the inner walls of the quick positioning slot on both sides away from the end position; the distance between the two protrusions matches the width of the fourth plate, the top width of the quick positioning slot is greater than the width of the fourth plate; the thickness of the fourth plate matches the thickness of the quick positioning slot; the pre-positioning structure includes the protrusions.

[0012] In one embodiment, a guide groove is formed on each side of the bottom of the fourth plate away from the second plate; the guide groove extends to the bottom end and the side of the fourth plate; the guide groove extends in the width direction to the opening of the quick positioning slot; the distance from the bottom surface of the guide groove to the side of the fourth plate adjacent to the second plate is less than the thickness of the quick positioning slot; the pre-positioning structure includes the guide groove.

[0013] In one embodiment, the precision positioning structure includes at least two sets of positioning pins and positioning pin holes disposed between the first plate and the third plate; the top of the positioning pin forms a guide surface.

[0014] In one embodiment, the locking structure includes at least two first locking bolts, at least two first locking screw holes formed in the first plate, and at least two connecting holes formed in the third plate; the first locking bolts pass through the connecting holes and are screwed into the corresponding first locking screw holes.

[0015] In one embodiment, an electrical connector is provided between the first plate and the third plate to cooperate with each other; the circuit of the pipette arm is detachably electrically connected to the circuit of the sidewall through the electrical connector.

[0016] In one embodiment, the sidewall is connected to the base via a second quick-release structure.

[0017] The beneficial technical effects of this utility model due to the adoption of the above technical solution include:

[0018] The first quick-release structure enables rapid loading and unloading of the pipette arm to the sidewall. A quick-positioning structure facilitates rapid positioning between the first and second quick-release components. A locking structure allows for locking and unlocking between the first and second quick-release components. The cooperation of the quick-positioning and locking structures enables rapid loading and unloading between the first and second quick-release components. The cooperation of the quick-positioning slot and the pre-positioning structure enables rapid pre-positioning of the fourth plate. The distance between the two protrusions matches the width of the fourth plate, and the top width of the quick-positioning slot is greater than the width of the fourth plate. Because the top width of the quick-positioning slot is greater than the width of the fourth plate, the fourth plate can be inserted into the quick-positioning slot more easily. Simultaneously, the protrusions provide guidance for the positioning of the fourth plate, achieving rapid pre-positioning. The use of a guide groove makes it easier for the fourth plate to be inserted into the quick-positioning slot in the thickness direction, providing auxiliary guiding positioning and further achieving rapid positioning of the fourth plate. A precision positioning structure is used for rapid and accurate positioning between the first and third plates. The use of electrical connectors enables rapid connection and disconnection of the pipette arm's circuitry with the circuitry of the sidewall. A second quick-release structure facilitates rapid connection and disconnection between the sidewall and the base.

[0019] In addition, the pipetting device with a quick-loading structure of this application has the following advantages:

[0020] 1. Transportation advantages: It can be disassembled into small parts for transportation, reducing packaging volume and freight costs; the pipette arm can be packaged separately to reduce damage from transportation vibrations; after being separated, it is easy to load into different transport vehicles, improving logistics efficiency.

[0021] 2. High assembly efficiency: The adoption of a quick-assembly and disassembly structure significantly shortens the installation time and reduces reliance on professional personnel.

[0022] 3. Optimized size: The pipette arm can be disassembled and stored compactly, making it suitable for limited spaces or mobile laboratory scenarios; and it can be flexibly assembled according to the usage scenario to avoid taking up too much space overall. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0024] Figure 1 This is a schematic diagram of the pipetting device with a quick loading and unloading structure in an embodiment of this application;

[0025] Figure 2 This is an exploded view of the first quick loading and unloading structure in the first direction in the embodiments of this application;

[0026] Figure 3 This is an exploded view of the first quick loading and unloading structure in the second direction in the embodiments of this application;

[0027] Figure 4 This is a side view of the first quick-loading and unloading component in an embodiment of this application.

[0028] Figure 5 This is a schematic diagram of the top structure of the first quick-loading and unloading component in an embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the third plate in the embodiment of this application from a bottom view.

[0030] Figure 7 This is an exploded structural diagram of the base and sidewall in an embodiment of this application;

[0031] Figure 8 This is a schematic diagram of the second quick loading and unloading structure in the embodiments of this application.

[0032] Explanation of icon numbers:

[0033] 1-Pipette arm;

[0034] 2- First quick loading and unloading structure;

[0035] 21-First quick-release assembly; 22-Second quick-release assembly; 23-Locking pin; 24-Locking pin hole; 25-First locking bolt; 26-First locking screw hole;

[0036] 211 - First board; 212 - Second board; 213 - Quick-positioning slot;

[0037] 221 - Third plate; 222 - Fourth plate; 223 - Guide groove;

[0038] 3-Sidewall;

[0039] 4-Base;

[0040] 5-pogopin assembly;

[0041] 51-pogopin male connector assembly; 52-pogopin female connector assembly.

[0042] 6-Second quick loading and unloading structure;

[0043] 61-Location locking pin; 62-Second locking bolt;

[0044] 611-Guide slope; 612-Locking groove; 613-Precision positioning surface; Detailed Implementation

[0045] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0046] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "linking," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] Example 1

[0049] Please see Figures 1-6 The present invention provides a pipetting device with a quick loading and unloading structure, comprising a pipetting arm 1, a first quick loading and unloading structure 2, a side wall 3, and a base 4; the pipetting arm 1 is detachably connected to the top of the side wall 3 via the first quick loading and unloading structure 2; the side wall 3 is connected to the base 4.

[0050] The adoption of the first quick loading and unloading structure 2 enables quick loading and unloading of the pipetting arm 1 and the side wall 3.

[0051] The first quick-loading / unloading structure 2 includes a first quick-loading / unloading component 21 and a second quick-loading / unloading component 22; the first quick-loading / unloading component 21 and the second quick-loading / unloading component 22 form a mutually cooperating quick positioning structure and a locking structure; the first quick-loading / unloading structure 2 fixes the pipette arm 1 and the side wall 3 together; the pipette arm 1 is fixedly connected to the second quick-loading / unloading component 22 and is detachably connected to the first quick-loading / unloading component 21 through the second quick-loading / unloading component 22; the first quick-loading / unloading component 21 is connected to the side wall 3; and the second quick-loading / unloading component 22 and the first quick-loading / unloading component 21 are locked or unlocked by the locking structure.

[0052] A quick-positioning structure is used to achieve rapid positioning between the first quick-loading / unloading assembly 21 and the second quick-loading / unloading assembly 22. A locking structure is used to lock and unlock between the first quick-loading / unloading assembly 21 and the second quick-loading / unloading assembly 22. Through the cooperation of the quick-positioning structure and the locking structure, rapid loading and unloading between the first quick-loading / unloading assembly 21 and the second quick-loading / unloading assembly 22 is achieved.

[0053] The first quick-release assembly 21 includes a first plate 211 and a second plate 212, the second plate 212 being connected to the first plate 211 on the side adjacent to the second quick-release assembly 22; the second plate 212 is provided with a quick-positioning slot 213; the second quick-release assembly 22 includes a third plate 221 and a fourth plate 222, the fourth plate 222 being connected to the third plate 221 on one side; the quick-positioning slot 213 and the fourth plate 222 form a mutually compatible arrangement. The pre-positioning structure is as follows: the fourth plate 222 is inserted into the quick positioning slot 213 and the pre-positioning structure quickly positions the fourth plate 222; the first plate 211 and the third plate 221 form the locking structure and a precision positioning structure; the quick positioning structure includes the pre-positioning structure and the precision positioning structure; the pipetting arm 1 is fixedly connected to the fourth plate 222 and the first plate 211 is connected to the side wall 3; the fourth plate 222 is inserted into the second plate 212 from the vertical direction.

[0054] The quick-positioning slot 213, in conjunction with the pre-positioning structure, enables rapid pre-positioning of the fourth plate 222. The precision positioning structure is used for rapid and accurate positioning between the first plate 211 and the third plate 221. The cooperation between the pre-positioning structure and the precision positioning structure enables convenient precision positioning after rapid pre-positioning, significantly improving the efficiency of precision positioning.

[0055] The second plate 212 extends on both sides and bends inward to form a U-shaped quick positioning slot 213. In other embodiments, the quick positioning slot 213 may also be a closed slot.

[0056] The quick positioning slot 213 has protrusions on both inner walls away from its end position; the distance between the two protrusions matches the width of the fourth plate 222; the top width of the quick positioning slot 213 is greater than the width of the fourth plate 222; the thickness of the fourth plate 222 matches the thickness of the quick positioning slot 213; the pre-positioning structure includes the protrusions. In other embodiments, the quick positioning slot 213 may have a convex arc surface in the middle of its inner walls on both sides, or it may have a structure with a flat middle and arc surfaces on both sides.

[0057] The distance between the two protrusions matches the width of the fourth plate 222. The top width of the quick positioning slot 213 is greater than the width of the fourth plate 222. Since the top width of the quick positioning slot 213 is greater than the width of the fourth plate 222, the fourth plate 222 can be inserted into the quick positioning slot 213 more conveniently. At the same time, the protrusions provide a guiding function for the positioning of the fourth plate 222, realizing the quick pre-positioning of the fourth plate 222.

[0058] The precision positioning structure includes at least two sets of positioning pins 23 and positioning pin holes 24 disposed between the first plate 211 and the third plate 221; the top end of the positioning pin 23 forms a guide surface; in this embodiment, the guide surface is an arc surface, and in other embodiments, the guide surface may also be a conical surface or other shapes that cooperate with the positioning pin hole 24. After pre-positioning, the positioning pins 23 and positioning pin holes 24 between the first plate 211 and the third plate 221 are basically aligned, and the end of the positioning pin 23 can enter the positioning pin hole 24. Then, the first plate 211 and the third plate 221 are further merged, and the positioning pin 23 quickly achieves precision positioning with the positioning pin hole 24 under the guidance of the guide surface. The quick insertion and removal of the positioning pin hole 24 realizes the rapid precision positioning between the first quick-release assembly 21 and the second quick-release assembly 22.

[0059] The locking structure includes at least two first locking bolts 25, at least two first locking screw holes 26 formed in the first plate 211, and at least two connecting holes formed in the third plate 221; the first locking bolts 25 pass through the connecting holes and are screwed into the corresponding first locking screw holes 26. In other embodiments, the locking structure may also employ any other existing locking structure.

[0060] Example 2

[0061] The second embodiment of this utility model provides a pipetting device with a quick-loading and unloading structure, which is basically the same as the first embodiment in structure. The difference is that a guide groove 223 is formed on each side of the bottom of the fourth plate 222 away from the second plate 212; the guide groove 223 extends to the bottom end and the side of the fourth plate 222; the guide groove 223 extends to the opening of the quick positioning slot 213 in the width direction; the distance from the bottom surface of the guide groove 223 to the side of the fourth plate 222 adjacent to the second plate 212 is less than the thickness of the quick positioning slot 213; the pre-positioning structure includes the guide groove 223.

[0062] The use of guide groove 223 makes it easier for the fourth plate 222 to be inserted into the quick positioning slot 213 in the thickness direction, providing an auxiliary guiding and positioning function, and further realizing the quick pre-positioning of the fourth plate 222.

[0063] Example 3

[0064] The pipetting device with a quick loading and unloading structure in Embodiment 3 of this utility model has a structure that is basically the same as that in Embodiment 2. The difference is that an electrical connector 5 is provided between the first plate 211 and the third plate 221 to cooperate with each other; the circuit of the pipetting arm 1 is detachably electrically connected to the circuit of the side wall 3 through the electrical connector.

[0065] In this embodiment, the electrical connector uses a pogopin assembly 5, which includes a male pogopin assembly 51 and a female pogopin assembly 52. ​​The female pogopin assembly 52 is fixed to the top surface of the first plate 211; the male pogopin assembly 51 is fixed to the bottom surface of the third plate 221 at a position corresponding to that of the female pogopin assembly 52. ​​Specifically, the male pogopin assembly 51 is connected to a circuit board, which is disposed on the third plate 221; each module of the pipette arm 1 is electrically connected to this circuit board.

[0066] In other embodiments, the pogopin female connector assembly 52 may be fixed to the bottom surface of the third plate 221; the pogopin male connector assembly 51 may be fixed to the top surface of the first plate 211.

[0067] The use of electrical connectors enables quick connection and disconnection of the circuitry between the pipette arm 1 and the sidewall 3.

[0068] Example 4

[0069] Please see Figure 7 and Figure 8 The fourth embodiment of this utility model provides a pipetting device with a quick loading and unloading structure, which has a structure that is basically the same as that of the third embodiment. The difference is that the side wall 3 and the base 4 are connected by a second quick loading and unloading structure 6.

[0070] In this embodiment, the second quick-assembly structure 6 includes at least two side wall positioning and locking components; each side wall positioning and locking component includes a positioning and locking pin 61 and a second locking bolt 62; the positioning and locking pin 61 is fixed to the base 4; a guide slope 611 is formed at the top of the positioning and locking pin 61, and a locking groove 612 is formed in the middle of the positioning and locking pin 61; a positioning hole is formed at the bottom of the side wall 3 to cooperate with the positioning and locking pin 61; a fine positioning surface 613 is formed on the lower periphery of the positioning and locking pin 61 to cooperate with the positioning hole; the positioning and locking pin 61 passes through the positioning hole; a second locking screw hole is formed on the side of the side wall 3 corresponding to the position of the locking groove 612; the second locking bolt 62 is screwed into the second locking screw hole and passes through the second locking screw hole to press against the locking groove 612, thereby realizing the locking of the side wall 3 and the base plate 4.

[0071] The second quick-release structure 6 is used to enable quick loading and unloading between the side wall 3 and the base 4.

[0072] In other embodiments, other existing quick-load structures may also be used.

[0073] Example 5

[0074] The fifth embodiment of this utility model provides a pipetting device with a quick loading and unloading structure, which is basically the same as the third embodiment. The difference is that the pipetting arm 1 is fixedly connected to the third plate 221 and the second plate 212 is connected to the side wall 3; the second plate 212 is located on the top surface of the side wall 3; and the fourth plate 222 is inserted into the second plate 212 from the horizontal direction.

[0075] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A pipetting device with a quick loading and unloading structure, characterized in that, It includes a pipette arm (1), a first quick-release structure (2), a side wall (3) and a base (4); the pipette arm (1) is detachably connected to the top of the side wall (3) through the first quick-release structure (2); the side wall (3) is connected to the base (4).

2. The pipetting device with a quick loading and unloading structure according to claim 1, characterized in that, The first quick-loading and unloading structure (2) includes a first quick-loading and unloading component (21) and a second quick-loading and unloading component (22); the first quick-loading and unloading component (21) and the second quick-loading and unloading component (22) form a quick positioning structure and a locking structure that cooperate with each other; the first quick-loading and unloading component (21) is connected to the side wall (3); the pipette arm (1) is fixedly connected to the second quick-loading and unloading component (22) and detachably connected to the first quick-loading and unloading component (21) through the second quick-loading and unloading component (22); and the second quick-loading and unloading component (22) and the first quick-loading and unloading component (21) are locked or unlocked by each other through the locking structure.

3. The pipetting device with a quick loading and unloading structure according to claim 2, characterized in that, The first quick-release assembly (21) includes a first plate (211) and a second plate (212), the second plate (212) being connected to the side of the first plate (211) adjacent to the second quick-release assembly (22); the second plate (212) is provided with a quick-positioning slot (213); the second quick-release assembly (22) includes a third plate (221) and a fourth plate (222), the fourth plate (222) being connected to the side of the third plate (221); the quick-positioning slot (213) and the fourth plate (222) form a mutually cooperating pre-positioning structure. The fourth plate (222) is inserted into the quick positioning slot (213) and the pre-positioning structure quickly positions the fourth plate (222); the first plate (211) and the third plate (221) form the locking structure and the precision positioning structure; the quick positioning structure includes the pre-positioning structure and the precision positioning structure; the pipetting arm (1) is fixedly connected to the fourth plate (222) and the first plate (211) is connected to the side wall (3); or the pipetting arm (1) is fixedly connected to the third plate (221) and the second plate (212) is connected to the side wall (3).

4. The pipetting device with a quick loading and unloading structure according to claim 3, characterized in that, The second plate (212) extends on both sides and bends inward to form the U-shaped quick positioning slot (213).

5. The pipetting device with a quick loading and unloading structure according to claim 3, characterized in that, The inner walls on both sides of the quick positioning slot (213) form protrusions away from the end position; the distance between the two protrusions matches the width of the fourth plate (222); the top width of the quick positioning slot (213) is greater than the width of the fourth plate (222); the thickness of the fourth plate (222) matches the thickness of the quick positioning slot (213); the pre-positioning structure includes the protrusions.

6. The pipetting device with a quick loading and unloading structure according to claim 3, characterized in that, A guide groove (223) is formed on each side of the bottom of the fourth plate (222) away from the second plate (212); the guide groove (223) extends to the bottom end and the side of the fourth plate (222); the guide groove (223) extends in the width direction to the opening of the quick positioning slot (213); the distance from the bottom surface of the guide groove (223) to the side of the fourth plate (222) adjacent to the second plate (212) is less than the thickness of the quick positioning slot (213); the pre-positioning structure includes the guide groove (223).

7. The pipetting device with a quick loading and unloading structure according to claim 3, characterized in that, The precision positioning structure includes at least two sets of positioning pins (23) and positioning pin holes (24) disposed between the first plate (211) and the third plate (221); the top of the positioning pin (23) forms a guide surface.

8. The pipetting device with a quick loading and unloading structure according to claim 3, characterized in that, The locking structure includes at least two first locking bolts (25), at least two first locking screw holes (26) formed in the first plate (211), and at least two connecting holes formed in the third plate (221); the first locking bolts (25) pass through the connecting holes and are screwed into the corresponding first locking screw holes (26).

9. The pipetting device with a quick loading and unloading structure according to claim 3, characterized in that, An electrical connector is provided between the first plate (211) and the third plate (221) to cooperate with each other; the circuit of the pipette arm (1) is detachably electrically connected to the circuit of the side wall (3) through the electrical connector.

10. The pipetting device with a quick-loading and unloading structure according to any one of claims 1 to 9, characterized in that, The sidewall (3) is connected to the base (4) via a second quick-release structure (6).

Images