Pipetting device with carrying mechanism

Abstract

The utility model discloses a pipetting device with a carrying mechanism, which comprises a pipetting device body (3), the pipetting device body (3) comprises two support plates (31) and two profiles (32), and the profiles (32) are fixedly connected between two sides of the bottoms of the two support plates (31); the device further comprises four carrying assembly loading and unloading self-locking limiting assemblies (2). The carrying assembly loading and unloading self-locking limiting assemblies (2) are fixed to the supporting plate (31) and / or the sectional materials (32) respectively and distributed on the lower portion of the pipetting device body (3) in a pairwise opposite mode. And the supporting plate (31) penetrates through to form a carrying assembly loading and unloading hole (33) matched with the carrying assembly loading and unloading self-locking limiting assembly (2). According to the pipetting device with the carrying mechanism, disclosed by the utility model, the carrying assembly can be conveniently assembled and disassembled on the pipetting device body, so that the pipetting device body can be conveniently carried, the carrying assembly can be disassembled after carrying, and the normal use and the attractive appearance of equipment are not influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid transfer devices, and in particular relates to a liquid transfer device with a transport mechanism. Background Art

[0002] Currently, existing pipetting devices are typically transported manually. However, for heavy equipment, such as those weighing 150 kg, manual handling can be prone to slipping, as the equipment may not have a suitable force-applying location. Furthermore, manual handling can be time-consuming, labor-intensive, and inconvenient, leading to hand injuries and damage to the equipment. Furthermore, on-site installation of equipment frames or heavy components can be challenging, making parts easily lost. Summary of the Invention

[0003] In response to the above-mentioned deficiencies in the existing technology, the present invention aims to provide a pipetting device with a transport mechanism, which can conveniently load and unload the transport component on the pipetting device body, thereby realizing convenient transport of the pipetting device body, and can disassemble the transport component after transport without affecting the normal use and appearance of the equipment.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a pipetting device with a transport mechanism, comprising a pipetting device body, wherein the pipetting device body comprises two support plates and two profiles, wherein the profiles are connected and fixed between the two sides of the bottom of the two support plates; and further comprises four transport component loading and unloading self-locking limit components; the transport component loading and unloading self-locking limit components are respectively fixed to the support plates and / or the profiles and are distributed in pairs at the lower part of the pipetting device body (3); the support plates are penetrated to form a transport component loading and unloading hole that cooperates with the transport component loading and unloading self-locking limit components.

[0005] As an embodiment, the self-locking limit assembly for loading and unloading the conveying assembly includes a fixed block and an elastic assembly; the fixed block forms a channel and a rotating space in sequence along the horizontal direction, and the end of the channel adjacent to the rotating space forms a limiting groove; the elastic assembly is pressed between the end of the channel and the inner wall of the fixed block on the side of the rotating space away from the channel; the fixed blocks are fixed to the support plate and / or the profile relative to each other and are located at or close to the same horizontal plane; the support plate forms the conveying assembly loading and unloading hole that cooperates with the channel.

[0006] As an embodiment, the fixed block includes a fixed block body, a base plate and a back plate; the fixed block body forms the channel and the limiting groove; the fixed block body and the back plate are correspondingly connected to the two sides of the base plate, and the rotation space is formed between the fixed block body and the back plate; the elastic component is connected to the back plate and pressed between the end of the channel and the back plate.

[0007] As an embodiment, the elastic component includes a compression spring and a spring fixing plate; the spring fixing plate can be connected to the inner wall of the fixed block on the side of the rotating space away from the channel for axial reciprocating movement along the channel; the compression spring is pressed between the spring fixing plate and the inner wall of the fixed block on the side of the rotating space away from the channel.

[0008] As an embodiment, the spring fixing plate is connected to the inner wall of the fixing block on the side of the rotating space away from the channel via a shoulder bolt so as to be axially reciprocating along the channel.

[0009] As an embodiment, the channel includes a central channel and a positioning member channel, and both sides of the central channel extend outward along a preset direction to form the positioning member channel; the preset direction is at a preset angle to the length direction of the limiting groove.

[0010] As an embodiment, it also includes four first conveying rods; the first ends of the first conveying rods are connected to or form positioning members; the positioning members protrude to both sides of the first end of the first conveying rod; the conveying assembly loading and unloading hole and the channel can accommodate the first end of the first conveying rod and the positioning member to pass through; the limiting groove cooperates with the positioning member; when the positioning member is located in the limiting groove, the limiting groove limits the first conveying rod circumferentially and axially in the direction away from the fixed block.

[0011] As an embodiment, it also includes two second carrying rods; each of the first carrying rods is connected to a second carrying rod detachable connection structure at the same distance from the corresponding positioning member; the second carrying rod can be detachably connected to the two first carrying rods on the same side of the pipetting device body through the second carrying rod detachable connection structure.

[0012] As an embodiment, the detachable connection structure of the second transport rod includes a U-shaped sheet metal and an R-shaped cotter pin; corresponding rod through holes are formed on both sides of the U-shaped sheet metal; the U-shaped sheet metal opening is upwardly sleeved and fixed on the first transport rod; the size of the rod through hole matches the second transport rod; positioning pin holes that match the R-shaped cotter pin are respectively formed on both sides of the second transport rod; the distance between the two positioning pin holes is greater than the distance between the outer sides of the U-shaped sheet metal on the two first transport rods on the same side of the pipetting device body.

[0013] As an embodiment, it further includes a plurality of button-type plugs, which cooperate with the loading and unloading holes of the transport component.

[0014] The utility model adopts the above technical solution, so that it has the following beneficial effects:

[0015] The present invention utilizes a self-locking limit assembly for loading and unloading the transport assembly and a transport assembly loading and unloading hole, thereby enabling convenient loading and unloading of the first transport rod member from a pipette device body pre-installed with a self-locking limit assembly for loading and unloading the transport assembly. When the pipette device body needs to be transported, the transport force application position can be conveniently installed. Furthermore, the first transport rod member can be removed after transport without affecting the normal use and aesthetics of the device. The fixed block forms a channel and a rotation space in sequence along the horizontal direction, through which the first transport rod member can extend into the rotation space. The rotation space provides space for the rotation of the end locating member of the first transport rod member. At the same time, a limiting groove is employed at the end of the channel. After the locating member rotates a preset angle, it automatically falls into the limiting groove under the push of the elastic assembly. The limiting groove and the elastic assembly cooperate to limit the circumferential and axial position of the first transport rod member. The fixed block includes a fixed block body, a base plate, and a back plate. This structure is simple and facilitates the installation of the elastic assembly. The elastic assembly includes a compression spring and a spring retaining plate, which provide a stable axial thrust along the channel to the first handling rod, enabling the locating member to automatically fall into the retaining groove and prevent it from falling out of the retaining groove. Upon application of sufficient external force, the elastic assembly retracts, allowing the first handling rod's locating member to escape from the retaining groove and enter the rotational space. Rotating the first handling rod through a preset angle pushes the locating member into the channel, enabling removal of the first handling rod. A shoulder bolt facilitates axial reciprocating motion of the spring retaining plate. The central channel accommodates the passage of the first handling rod, while the locating member passage accommodates the passage of the locating member. The preset direction is angled relative to the length of the retaining groove, ensuring that the retaining groove constrains the locating member circumferentially and axially after the locating member rotates through the preset angle and falls into the retaining groove. The preset angle includes 90°, facilitating rotational operation by the operator. The use of a second handling rod provides more locations for force application, enabling more personnel to handle the pipette body when handling heavy equipment. The removable connection structure of the second carrying rod allows for detachable connection between the second carrying rod and the first carrying rod. The combination of the U-shaped sheet metal, R-shaped cotter pin, and locating pin hole allows for convenient positioning of the second carrying rod; removing the R-shaped cotter pin allows for easy removal of the second carrying rod. A snap-on plug seals the handling assembly access hole of the pipette body when the first carrying rod is not installed, maintaining the device's aesthetic appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is an appearance diagram of a pipetting device with a transport mechanism according to an embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of the connection structure of a pipetting device with a transport mechanism according to an embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the connection structure between the first transport rod and the transport assembly loading and unloading self-locking limit assembly in an embodiment of the present application;

[0020] Figure 4 An exploded view of the first transport rod and the transport assembly for loading and unloading the self-locking limit assembly according to an embodiment of the present application;

[0021] Figure 5 This is a structural schematic diagram of the first direction of loading and unloading the self-locking limit assembly of the transport assembly according to an embodiment of the present application;

[0022] Figure 6 This is a structural schematic diagram of the second direction of loading and unloading the self-locking limit assembly of the transport assembly according to the embodiment of the present application;

[0023] Figure 7 This is a schematic diagram of the connection structure between the second transport rod and the first transport rod in an embodiment of the present application;

[0024] Figure 8 Schematic diagram of the connection structure between the button-type plug and the pipetting device body according to an embodiment of the present application.

[0025] Description of Figure Numbers:

[0026] 1- first carrying rod;

[0027] 11- positioning piece;

[0028] 2-Handling components and loading and unloading self-locking limit components;

[0029] 21-fixing block; 22-compression spring; 23-spring fixing plate; 24-shoulder bolt;

[0030] 211 fixed block body; 212 bottom plate; 213 back plate; 214 channel; 215 rotation space; 216 limiting groove;

[0031] 2141-middle channel; 2142-positioning piece channel;

[0032] 3- pipetting device body;

[0033] 31-support plate; 32-profile; 33-handling component loading and unloading hole;

[0034] 4- second carrying rod;

[0035] 5-U-shaped sheet metal;

[0036] 51-rod through hole;

[0037] 6-R type cotter pin;

[0038] 7-Button plug. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] 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., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. 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.

[0041] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "installed," "connected," and "connected" should be understood in a broad sense. For example, "connected" can mean 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, an indirect connection through an intermediate medium, or internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. Example

[0042] See also Figures 1 to 6, a pipetting device with a transport mechanism in accordance with the first embodiment of the present invention includes a pipetting device body 3, wherein the pipetting device body 3 includes two support plates 31 and two profiles 32, and the profiles 32 are connected and fixed between the two sides of the bottom of the two support plates 31; it also includes four transport component loading and unloading self-locking limit components 2; the transport component loading and unloading self-locking limit components 2 are respectively fixed to the support plates 31 and / or the profiles 32 and are distributed in pairs at the lower part of the pipetting device body 3; the support plates 31 are penetrated to form a transport component loading and unloading hole 33 that cooperates with the transport component loading and unloading self-locking limit components 2.

[0043] As an embodiment, the self-locking limit assembly 2 for loading and unloading the transport assembly includes a fixed block 21 and an elastic assembly; the fixed block 21 forms a channel 214 and a rotation space 215 in sequence along the horizontal direction, and the channel 214 forms a limit groove 216 at the end adjacent to the rotation space 215; the elastic assembly is pressed between the end of the channel 214 and the inner wall of the fixed block 21 on the side of the rotation space 215 away from the channel 214; the fixed blocks 21 are fixed to the support plate 31 and / or the profile 32 in pairs and are located at or close to the same horizontal plane; the support plate 31 forms the transport assembly loading and unloading holes 33 that cooperate with the channels 214. In this embodiment, the fixed blocks 21 are fixed between the support plate 31 and the profile 32 in pairs; in other embodiments, the fixed blocks 21 can also be fixed only to the support plate 31 or the profile 32. As a preferred embodiment, the fixed blocks 21 are distributed in pairs.

[0044] In one embodiment, the fixing block 21 includes a fixing block body 211, a bottom plate 212, and a back plate 213. The fixing block body 211 forms the channel 214 and the limiting groove 216. The fixing block body 211 and the back plate 213 are respectively connected to two sides of the bottom plate 212, and the rotation space 215 is formed between the fixing block body 211 and the back plate 213. The elastic component is connected to the back plate 213 and is pressed between the end of the channel 214 and the back plate 213. This structure is simple and facilitates the installation of the elastic component.

[0045] In this embodiment, the fixing block 21 is made of 45# steel and is fastened to the profile 32 and the support plate 31 with bolts, so the fixing block 21 has reliable strength.

[0046] On-site installation of the transport assembly is completed by simply inserting the transport assembly with the positioning member 11 into the fixing block 21 and locking it in place. No other parts are required, making operation efficient and convenient. The transport assembly can use the first transport rod 1 in the embodiment, or a transport assembly with a positioning member 11 of another structure.

[0047] Specifically, when the pipetting device body 3 needs to be transported, the first transport rod 1 is inserted into the channel 214 of the pre-installed fixed block 21 through the pre-opened transport assembly loading and unloading hole 33 of the pipetting device body 3, and the elastic component is compressed until the first transport rod 1 can be rotated to a preset angle. At this time, let go, and use the elastic force of the elastic component to drop the positioning member 11 on the first transport rod 1 into the limiting groove 216 of the fixed block 21. According to this operation method, the other three first transport rods are inserted into the other three fixed blocks 21 in turn and locked in position. After the transport is completed, it is only necessary to push the first transport rod 1 inward to a rotatable position, rotate the first transport rod 1 so that the positioning member 11 falls into the channel 214, and then pull out and disassemble the first transport rod 1. Disassembly is also very convenient, and there is no need to remove the bolts, which does not affect the normal use of the pipetting device body 3. Example

[0048] The second embodiment of the present invention is a pipetting device with a transport mechanism, and its structure is basically the same as that of the first embodiment, except that the fixed block 21 forms the channel 214, the limiting groove 216 and the rotating space 215 inside, and the rotating space 215 forms the elastic component installation port. Example

[0049] The third embodiment of the present invention is a pipetting device with a conveying mechanism, and its structure is basically the same as that of the first embodiment, except that the elastic component includes a compression spring 22 and a spring fixing plate 23; the spring fixing plate 23 can be connected to the inner wall of the fixed block 21 on the side of the rotating space 215 away from the channel 214 for axial reciprocating movement along the channel 214; the compression spring 22 is pressed between the spring fixing plate 23 and the inner wall of the fixed block 21 on the side of the rotating space 215 away from the channel 214. The first carrying rod 1 can be provided with an axial thrust stably along the axial direction of the channel 214, so that the positioning member 11 automatically falls into the limiting groove 216 and prevents the positioning member 11 from falling out after falling into the limiting groove 216. The positioning member 11 can be retracted when subjected to sufficient external force, so that the positioning member 11 on the first carrying rod 1 can fall out of the limiting groove 216 and enter the rotation space 215. After the first carrying rod 1 is rotated by a preset angle, the positioning member 11 is pushed into the channel 214, so that the first carrying rod 1 can be disassembled.

[0050] In other embodiments, the elastic component may simply be a spring or other existing elastic structures. Example

[0051] The fourth embodiment of the present invention is a pipetting device with a transfer mechanism, the structure of which is substantially the same as that of the first embodiment, except that the spring fixing plate 23 is connected to the inner wall of the fixing block 21 on the side of the rotating space 215 away from the channel 214 via a shoulder bolt 24 for axial reciprocating motion along the channel 214. The shoulder bolt 24 facilitates the axial reciprocating motion of the spring fixing plate 23. Example

[0052] The fifth embodiment of the present invention is a pipetting device with a transfer mechanism. Its structure is substantially the same as that of the first embodiment, differing in that the channel 214 comprises a central channel 2141 and a positioning member channel 2142. Both sides of the central channel 2141 extend outwardly along a predetermined direction to form the positioning member channel 2142. The predetermined direction forms a predetermined angle with the length of the retaining groove 216. In this embodiment, the predetermined angle is 90°. In other embodiments, the predetermined angle may be any angle other than 180° or its multiples.

[0053] The central channel 2141 is configured to accommodate the first carrying rod 1, while the positioning member channel 2142 is configured to accommodate the positioning member 11. The predetermined direction forms a predetermined angle with the length of the retaining groove 216, so that when the positioning member 11 rotates through the predetermined angle and falls into the retaining groove 216, the retaining groove 216 will constrain the positioning member 11 circumferentially and axially. The predetermined angle includes 90°, facilitating rotational operations. Example

[0054] The sixth embodiment of the present invention is a pipetting device with a conveying mechanism, the structure of which is basically the same as that of the first embodiment, except that it further includes four first conveying rods 1; the first ends of the first conveying rods 1 are connected to or form positioning members 11; the positioning members 11 protrude to both sides of the first end of the first conveying rod 1; the conveying assembly loading and unloading hole 33 and the channel 214 can accommodate the first end of the first conveying rod 1 and the positioning member 11 to pass through; the limiting groove 216 cooperates with the positioning member 11; when the positioning member 11 is located in the limiting groove 216, the limiting groove 216 limits the first conveying rod 1 circumferentially and axially in the direction away from the fixing block 21.

[0055] In this embodiment, the first transport rod 1 is a round rod, which is comfortable to hold and has a large contact area. The first transport rod 1 is made of 45-gauge steel, which can bear a weight of 50 kg and has reliable strength. The positioning member 11 can be a positioning pin. Example

[0056] See also Figures 1 to 7The seventh embodiment of the present invention is a pipetting device with a transport mechanism, and its structure is basically the same as that of the first embodiment, except that it further includes two second transport rods 4; each of the first transport rods 1 is connected to a second transport rod detachable connection structure at the same distance from the corresponding positioning member 11; the second transport rod 4 can be detachably connected to the two first transport rods 1 on the same side of the pipetting device body 3 through the second transport rod detachable connection structure.

[0057] In this embodiment, the detachable connection structure of the second transport rod comprises a U-shaped sheet metal 5 and an R-shaped cotter pin 6. Corresponding rod through holes 51 are formed on either side of the U-shaped sheet metal 5. The U-shaped sheet metal 5 is secured to the first transport rod 1 with its opening facing upward. The rod through holes 51 are sized to match the size of the second transport rod 4. Positioning pin holes are formed on either side of the second transport rod 4 to engage with the R-shaped cotter pin 6. The distance between the two positioning pin holes is greater than the distance between the outer sides of the U-shaped sheet metal 5 on the two first transport rods 1 on the same side of the pipetting device body 3. In other embodiments, the second transport rod 4 and the first transport rod 1 may employ other existing detachable connection structures.

[0058] The use of the second carrying rod 4 provides more locations for applying force, enabling more people to carry the pipetting device body 3 when transporting heavy equipment. The connection structure of the second carrying rod 4 enables a detachable connection between the second carrying rod 4 and the first carrying rod 1. The combination of the U-shaped sheet metal 5, the R-shaped cotter pin 6, and the locating pin hole conveniently limits the position of the second carrying rod 4; after removing the R-shaped cotter pin 6, the second carrying rod 4 can be easily removed. Example

[0059] See also Figures 1 to 8 The eighth embodiment of the present invention is a pipetting device with a transport mechanism, and its structure is basically the same as that of the first embodiment, except that it further includes a plurality of button-type plugs 7, and the button-type plugs 7 cooperate with the loading and unloading holes 33 of the transport component.

[0060] The button-type plug 7 can be used to block the transport assembly installation and removal hole 33 of the pipetting device body 3 when the first transport rod 1 is not installed, thereby maintaining the beautiful appearance of the device.

[0061] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. A person 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. The scope of protection of the present invention shall be determined by the scope defined in the appended claims.

Claims

1. A pipetting device with a transport mechanism, comprising a pipetting device body (3), characterized in that: The pipetting device body (3) comprises two support plates (31) and two profiles (32), wherein the profiles (32) are connected and fixed between the two sides of the bottom of the two support plates (31); and further comprises four transport component loading and unloading self-locking limit components (2); the transport component loading and unloading self-locking limit components (2) are respectively fixed to the support plates (31) and / or the profiles (32) and are distributed in pairs at the lower part of the pipetting device body (3); the support plates (31) are penetrated to form transport component loading and unloading holes (33) that cooperate with the transport component loading and unloading self-locking limit components (2).

2. The liquid transfer device with a transport mechanism according to claim 1, characterized in that: The self-locking limiting component (2) for loading and unloading the transport component comprises a fixed block (21) and an elastic component; the fixed block (21) forms a channel (214) and a rotation space (215) in sequence along the horizontal direction, and the channel (214) forms a limiting groove (216) at the end adjacent to the rotation space (215); the elastic component is pressed between the end of the channel (214) and the inner wall of the fixed block (21) on the side of the rotation space (215) away from the channel (214); the fixed blocks (21) are fixed to the support plate (31) and / or the profile (32) in pairs relative to each other and are located at or close to the same horizontal plane; the support plate (31) forms the transport component loading and unloading hole (33) that cooperates with the channel (214).

3. The liquid transfer device with a transport mechanism according to claim 2, characterized in that: The fixed block (21) comprises a fixed block body (211), a bottom plate (212) and a back plate (213); the fixed block body (211) forms the channel (214) and the limiting groove (216); the fixed block body (211) and the back plate (213) are correspondingly connected to two sides of the bottom plate (212), and the rotation space (215) is formed between the fixed block body (211) and the back plate (213); the elastic component is connected to the back plate (213) and is pressed between the end of the channel (214) and the back plate (213).

4. The liquid transfer device with a transport mechanism according to claim 2 or 3, characterized in that: The elastic component includes a compression spring (22) and a spring fixing plate (23); the spring fixing plate (23) is connected to the inner wall of the fixing block (21) on the side of the rotating space (215) away from the channel (214) so ​​as to be axially reciprocating along the channel (214); the compression spring (22) is pressed between the spring fixing plate (23) and the inner wall of the fixing block (21) on the side of the rotating space (215) away from the channel (214).

5. The liquid transfer device with a transport mechanism according to claim 4, characterized in that: The spring fixing plate (23) is connected to the inner wall of the fixing block (21) on the side of the rotating space (215) away from the channel (214) via a shoulder bolt (24) so ​​as to be axially reciprocating along the channel (214).

6. The liquid transfer device with a transport mechanism according to claim 2, characterized in that: The channel (214) comprises a central channel (2141) and a positioning member channel (2142), and both sides of the central channel (2141) extend outwardly along a preset direction to form the positioning member channel (2142); the preset direction forms a preset angle with the length direction of the limiting groove (216).

7. The liquid transfer device with a transport mechanism according to claim 2, characterized in that: The invention also includes four first transport rods (1); the first end of the first transport rod (1) is connected to or forms a positioning member (11); the positioning member (11) protrudes to both sides of the first end of the first transport rod (1); the transport assembly loading and unloading hole (33) and the channel (214) can accommodate the first end of the first transport rod (1) and the positioning member (11) to pass through; the limiting groove (216) cooperates with the positioning member (11); when the positioning member (11) is located in the limiting groove (216), the limiting groove (216) limits the circumferential position of the first transport rod (1) and the axial position in the direction away from the fixing block (21).

8. The liquid transfer device with a transport mechanism according to claim 7, characterized in that: The device further comprises two second transport rods (4); each of the first transport rods (1) is connected to a second transport rod detachable connection structure at the same distance from the corresponding positioning member (11); the second transport rod (4) can be detachably connected to the two first transport rods (1) on the same side of the pipetting device body (3) through the second transport rod detachable connection structure.

9. The liquid transfer device with a transport mechanism according to claim 8, characterized in that: The detachable connection structure of the second transport rod comprises a U-shaped sheet metal (5) and an R-shaped cotter pin (6); corresponding rod through holes (51) are formed on both sides of the U-shaped sheet metal (5); the U-shaped sheet metal (5) is fixedly mounted on the first transport rod (1) with its opening facing upward; the size of the rod through hole (51) matches that of the second transport rod (4); positioning pin holes matching the R-shaped cotter pin (6) are respectively formed on both sides of the second transport rod (4); the distance between the two positioning pin holes is greater than the distance between the outer sides of the U-shaped sheet metal (5) on the two first transport rods (1) on the same side of the pipetting device body (3).

10. The liquid transfer device with a transport mechanism according to claim 1, characterized in that: It also includes a plurality of button-type plugs (7), which cooperate with the handling assembly loading and unloading holes (33).

Images