Table type sampling gun head automatic placing device for laboratory

Abstract

The utility model discloses a table type automatic sample adding gun head placing device for a laboratory, and relates to the technical field of sample adding gun head placing. The top of the workbench is provided with a supporting assembly and a lifting assembly, the driving end of the lifting assembly is in power connection with the supporting assembly, the supporting assembly is internally provided with a spacing assembly, the bottom of the workbench is provided with a driving assembly, and the driving assembly is in power connection with the moving end of the spacing assembly. The sample adding gun heads can be linearly distributed through the supporting assembly, meanwhile, the sample adding gun heads in the supporting assembly can be distributed according to the blank spaces on the storage box through the spacing assembly, and the sample adding gun heads only need to be placed in the supporting assembly in the whole arrangement process; and then the driving assembly and the lifting assembly are driven respectively, so that the labor intensity is low when the sample adding gun heads are placed, and meanwhile, the placing efficiency is also improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of placing sample pipette tips, and in particular relates to a table-type automatic placing device for sample pipette tips used in a laboratory. Background Art

[0002] Pipetting tips play a vital role in the laboratory, primarily used for rapid quantitative pipetting and are indispensable tools in biochemical experiments. To improve experimental efficiency, reduce cross-contamination, protect laboratory personnel, lower experimental costs, and improve experimental accuracy, several pipetting tips need to be placed inside a storage box.

[0003] When discharging the pipette tips into the storage box, an operator is required to manually insert the pipette tips into the spaces of the storage box one by one. This operation is not only labor-intensive but also has low work efficiency.

[0004] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0005] In view of the problems in the related art, the present invention proposes a laboratory table-type automatic placement device for sample pipetting gun tips to overcome the above technical problems existing in the existing related art.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a laboratory desktop sample pipetting gun tip automatic placement device, comprising a workbench, a support assembly is provided on the top of the workbench, a lifting assembly is provided on the top of the workbench, a driving end of the lifting assembly is dynamically connected to the support assembly, a spacing assembly is provided inside the support assembly, a driving assembly is provided at the bottom of the workbench, the driving assembly is dynamically connected to the moving end of the spacing assembly, a blowing assembly is provided on one side of the support assembly, an elastic limiting assembly is provided on the other side of the support assembly, and a shielding assembly is provided on the top of the support assembly.

[0008] Furthermore, the support assembly includes a support frame, an inner wall of the support frame is provided with a placement groove, and a plurality of the placement groove arrays are provided.

[0009] Furthermore, the lifting assembly includes a support frame, which is fixedly connected to the workbench, a lifting screw is rotatably connected to the inside of the support frame, a lifting plate is threadedly connected to the outer surface of the lifting screw, and the lifting plate is fixedly connected to the support frame. A lifting motor is fixedly installed on the top of the support frame, the output end of the lifting motor is fixedly connected to the lifting screw, and a lifting guide rod is fixedly connected to the top of the workbench, and the lifting guide rod is movably connected to the corresponding lifting plate.

[0010] Furthermore, the spacer assembly includes a movable groove, which passes through the support frame. The interior of the movable groove is movably connected to a spacer rod. There are multiple spacer rod arrays. One side of the spacer rod is fixedly connected to a connecting plate, and the other sides of the multiple spacer rods are inclined.

[0011] Furthermore, the driving assembly includes a support plate, which is fixedly connected to the bottom of the workbench, one side of the support plate is rotatably connected to a driving screw, the outer surface of the driving screw is threadedly connected to a driving frame, the inner wall of the driving frame is fixedly connected to a fixing rod, the outer surface of the fixing rod is movably connected to a connecting frame, the connecting frame is fixedly connected to the connecting plate, the bottom of the workbench is fixedly connected to a driving guide rod, the driving guide rod is movably connected to the connecting frame, a driving motor is fixedly installed on one side of the support plate, and the output end of the driving motor is fixedly connected to the driving screw.

[0012] Furthermore, the blowing assembly includes an exhaust fan, which is fixedly installed on the top of the workbench, and the output end of the exhaust fan is fixedly connected to a transport pipe, one end of the transport pipe is fixedly connected to a compression box, and the compression box is fixedly installed on the bottom of the support frame, and the top of the compression box is fixedly connected to a nozzle, and one end of the nozzle is inside the support frame.

[0013] Furthermore, the elastic limiting assembly includes a T-shaped rod, which is fixedly connected to the back of the support frame, and a blocking rod is movably connected to the outer surface of the T-shaped rod. A spring is fixedly connected between the blocking rod and the support frame, and the blocking rod is movably connected to the movable groove. One side of the blocking rod is in contact with the outermost spacer rod, and a limiting groove is provided on the top of the blocking rod, and a limiting plate is fixedly connected to the corresponding limiting groove on the top of the workbench.

[0014] Furthermore, the shielding assembly includes a shielding cover, which is rotatably connected to the support frame, the bottom of the shielding cover is fixedly connected to a magnetic block, the inner wall of the support frame is fixedly connected to an iron block corresponding to the magnetic block, and the top of the shielding cover is fixedly connected to a handle.

[0015] Furthermore, a positioning frame is fixedly connected to the top of the workbench corresponding to the support frame.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model enables a plurality of sample adding gun heads to be distributed in a straight line through the support assembly. At the same time, the spacing assembly can distribute the sample adding gun heads inside the support assembly according to the spaces on the storage box under the drive of the driving assembly. At the same time, the separated sample adding gun heads can be automatically moved to the corresponding spaces on the storage box under the drive of the lifting assembly. The entire discharge process only requires placing the sample adding gun head inside the support assembly, and then driving the driving assembly and the lifting assembly respectively, so that the operator does not need to manually insert the sample adding gun head into the space inside the storage box, thereby reducing the labor intensity when placing the sample adding gun heads and improving the placement efficiency.

[0018] 2. The utility model can limit the top of the sampling gun heads distributed in a straight line inside the placement slot through the shielding cover. At this time, the nozzle can blow the sampling gun heads inside the placement slot, so that the top protruding positions of adjacent sampling gun heads can touch each other. At the same time, the shielding rod can shield one side of the placement slot under the pull of the spring, so that the sampling gun heads will not be separated from the inside of the placement slot under the blowing of the airflow. The above arrangement ensures that when the spacer rod moves inside the support frame and separates the linear sampling gun heads, there will be no phenomenon that there is no sampling gun head in the space formed by the placement slot and the spacer rod, thereby avoiding the phenomenon of missing installation.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the external outline structure of the utility model;

[0022] Figure 2 For the utility model Figure 1 Schematic diagram of the structure viewed from above;

[0023] Figure 3 This is a schematic diagram of the blowing assembly structure of the utility model;

[0024] Figure 4 This is a schematic structural diagram of the shielding component of the present utility model;

[0025] Figure 5 For the utility model Figure 4 A is an enlarged structural diagram;

[0026] Figure 6 This is a schematic diagram of the lifting assembly structure of the utility model;

[0027] Figure 7 This is a schematic diagram of the drive assembly structure of the present utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0029] 1. Workbench; 2. Support assembly; 201. Support frame; 202. Placement slot; 3. Lifting assembly; 301. Support frame; 302. Lifting screw; 303. Lifting plate; 304. Lifting motor; 305. Lifting guide rod; 4. Spacer assembly; 401. Moving slot; 402. Spacer rod; 403. Connecting plate; 5. Drive assembly; 501. Support plate; 502. Drive screw; 503. Drive frame; 504. Fixing rod; 50 5. Connecting frame; 506. Driving guide rod; 507. Driving motor; 6. Blowing assembly; 601. Exhaust fan; 602. Transport tube; 603. Compression box; 604. Nozzle; 7. Elastic limit assembly; 701. T-bar; 702. Shielding rod; 703. Spring; 704. Limiting groove; 705. Limiting plate; 8. Shielding assembly; 801. Shielding cover; 802. Magnetic block; 803. Iron block; 804. Handle; 9. Positioning frame. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the utility model embodiments in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the utility model embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of utility model protection.

[0031] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0032] See also Figure 1-Figure 7As shown, the utility model is a laboratory desktop sample gun tip automatic placement device, comprising a workbench 1, a support assembly 2 is provided on the top of the workbench 1, a lifting assembly 3 is provided on the top of the workbench 1, the driving end of the lifting assembly 3 is dynamically connected to the support assembly 2, a spacing assembly 4 is provided inside the support assembly 2, a driving assembly 5 is provided at the bottom of the workbench 1, the driving assembly 5 is dynamically connected to the moving end of the spacing assembly 4, a blowing assembly 6 is provided on one side of the support assembly 2, an elastic limiting assembly 7 is provided on the other side of the support assembly 2, and a shielding assembly 8 is provided on the top of the support assembly 2.

[0033] By placing several loading gun tips into the interior of the support assembly 2, and then rotating the shielding assembly 8 so that the shielding assembly 8 limits the top of the loading gun tips inside the support assembly 2, and at the same time the blowing assembly 6 blows the several loading gun tips so that the loading gun tips can be in contact with each other in a straight line under the blowing of the airflow, at this time the spacer assembly 4 is driven by the driving assembly 5 and the spacer assembly 4 separates the loading gun tips placed in a straight line inside the support assembly 2, and then the support assembly 2 is driven by the lifting assembly 3, so that the support assembly 2 can drive the bottom of the separated loading gun tips to move directly to the space in the storage box, and at this time the spacer assembly 4 is pulled by the driving assembly 5 so that the spacer assembly 4 can be moved out from the interior of the support assembly 2, and finally the storage box loaded with the loading gun tips can be moved out from the bottom of the support assembly 2.

[0034] Through the support component 2, several sample adding gun tips can be distributed in a straight line. At the same time, the spacing component 4 can distribute the sample adding gun tips inside the support component 2 according to the spaces on the storage box under the drive component 5. At the same time, under the drive of the lifting component 3, several sample adding gun tips that have been separated can be automatically moved to the corresponding spaces on the storage box. The entire discharge process only requires placing the sample adding gun tips inside the support component 2, and then driving the drive component 5 and the lifting component 3 respectively, so that the operator does not need to manually insert the sample adding gun tips into the spaces in the storage box, thereby reducing the labor intensity when placing the sample adding gun tips and improving the placement efficiency.

[0035] In one embodiment, for the above-mentioned support assembly 2, the support assembly 2 includes a support frame 201, an inner wall of the support frame 201 is provided with a placement groove 202, and a plurality of the placement grooves 202 are arranged in an array.

[0036] Place several pipetting gun tips directly inside the support frame 201, and then swing the pipetting gun tips back and forth. Since the top of the pipetting gun tip protrudes outward, the bottom of the pipetting gun tip can directly fall into the placement slot 202 during the swinging process. At the same time, the protruding part of the pipetting gun tip is inside the placement slot 202. At the same time, under the restriction of the placement slot 202, several pipetting gun tips can be arranged in a straight line inside the support frame 201, and the entire placement process is relatively convenient.

[0037] In one embodiment, for the above-mentioned lifting component 3, the lifting component 3 includes a support frame 301, the support frame 301 is fixedly connected to the workbench 1, the internal rotation of the support frame 301 is connected to the lifting screw 302, the outer surface of the lifting screw 302 is threadedly connected to the lifting plate 303, the lifting plate 303 is fixedly connected to the support frame 201, and a lifting motor 304 is fixedly installed on the top of the support frame 301, the output end of the lifting motor 304 is fixedly connected to the lifting screw 302, and the top of the workbench 1 is fixedly connected to a lifting guide rod 305, and the lifting guide rod 305 is movably connected to the corresponding lifting plate 303.

[0038] By driving the lifting motor 304, the lifting motor 304 drives the lifting screw 302 to rotate, and the rotating lifting screw 302 drives the support frame 201 to rise and fall through the lifting plate 303, so that the sample loading gun head inside the support frame 201 can automatically move to the space on the storage box. At the same time, when the support frame 201 is rising and falling, the lifting guide rod 305 can guide the support frame 201 through the corresponding lifting plate 303, so that the stability of the support frame 201 during the rising and falling can be guaranteed.

[0039] In one embodiment, for the above-mentioned spacer assembly 4, the spacer assembly 4 includes a movable groove 401, the movable groove 401 passes through the support frame 201, and the interior of the movable groove 401 is movably connected to a spacer rod 402, and a plurality of the spacer rods 402 are arranged in an array, one side of the spacer rod 402 is fixedly connected to a connecting plate 403, and the other sides of the plurality of spacer rods 402 are inclined.

[0040] By pushing the connecting plate 403, the connecting plate 403 can push the multiple spacer rods 402, so that the multiple spacer rods 402 can be moved to the inside of the support frame 201 through the movable groove 401. Since the protruding positions of the top of the sampling gun heads arranged in a straight line are in contact with each other, there is a gap between the bottom parts of adjacent sampling gun heads at this time, and the spacer rods 402 separate the contacting sampling gun heads through the gap. At the same time, since one side of the spacer rod 402 is tilted, the spacer rod 402 can pass through the gap normally through the inclined surface. At the same time, under the restriction of the spacer rod 402 and the placement groove 202, the sampling gun heads inside the support frame 201 correspond to the spaces on the placement box up and down.

[0041] In one embodiment, for the above-mentioned drive assembly 5, the drive assembly 5 includes a support plate 501, the support plate 501 is fixedly connected to the bottom of the workbench 1, one side of the support plate 501 is rotatably connected to the drive screw 502, the outer surface of the drive screw 502 is threadedly connected to the drive frame 503, the inner wall of the drive frame 503 is fixedly connected to the fixed rod 504, the outer surface of the fixed rod 504 is movably connected to the connecting frame 505, the connecting frame 505 is fixedly connected to the connecting plate 403, the bottom of the workbench 1 is fixedly connected to the drive guide rod 506, the drive guide rod 506 is movably connected to the connecting frame 505, and a drive motor 507 is fixedly installed on one side of the support plate 501, and the output end of the drive motor 507 is fixedly connected to the drive screw 502.

[0042] The driving screw 502 is driven by the driving motor 507, so that the driving screw 502 can drive the driving frame 503, so that the driving frame 503 can move at the bottom of the workbench 1, and the moving driving frame 503 drives the connecting frame 505 to move at the bottom of the workbench 1 through the fixing rod 504, so that the connecting plate 403 can automatically move under the drive of the connecting frame 505, and at the same time, the driving guide rod 506 can guide the moving driving frame 503, so that the driving frame 50 3 can maintain stability during movement; when the support frame 201 is raised or lowered, the support frame 201 can drive the spacing rod 402 and the connecting plate 403 to move downward together through the moving groove 401, so that the connecting frame 505 slides on the outer surface of the fixed rod 504 under the drive of the connecting plate 403. This arrangement ensures that no matter how the spacing rod 402 and the connecting plate 403 move, the driving frame 503 can normally drive the spacing rod 402 and the connecting plate 403 through the fixed rod 504 and the connecting frame 505.

[0043] In one embodiment, for the above-mentioned blowing assembly 6, the blowing assembly 6 includes an exhaust fan 601, the exhaust fan 601 is fixedly installed on the top of the workbench 1, the output end of the exhaust fan 601 is fixedly connected to a transport pipe 602, one end of the transport pipe 602 is fixedly connected to a compression box 603, the compression box 603 is fixedly installed on the bottom of the support frame 201, the top of the compression box 603 is fixedly connected to a nozzle 604, and one end of the nozzle 604 is inside the support frame 201.

[0044] The vacuum fan 601 can extract the external airflow, and the extracted airflow flows directly into the interior of the compression box 603 under the guidance of the transport tube 602. At this time, the compression box 603 compresses the airflow and enables the nozzle 604 to eject the compressed airflow. The ejected airflow can blow the straight-line sampling gun tips inside the support frame 201, so that the sampling gun tips inside the placement slot 202 can be in close contact with each other. This setting ensures that when the spacer rod 402 separates the straight-line sampling gun tips, there will be no phenomenon that there is no sampling gun tip in the space formed by the placement slot 202 and the spacer rod 402, thereby avoiding the phenomenon of missing installation.

[0045] In one embodiment, for the above-mentioned elastic limiting component 7, the elastic limiting component 7 includes a T-shaped rod 701, the T-shaped rod 701 is fixedly connected to the back of the support frame 201, the outer surface of the T-shaped rod 701 is movably connected with a shielding rod 702, a spring 703 is fixedly connected between the shielding rod 702 and the support frame 201, the shielding rod 702 is movably connected to the movable groove 401, one side of the shielding rod 702 is in contact with the outermost spacer rod 402, a limiting groove 704 is provided on the top of the shielding rod 702, and the top of the workbench 1 is fixedly connected to the limiting plate 705 corresponding to the limiting groove 704.

[0046] The shielding rod 702 can be moved to the inside of the support frame 201 through the movable groove 401 under the push of the spring 703, so that the shielding rod 702 can shield one side of the support frame 201. This setting enables the airflow ejected by the nozzle 604 to blow the sample adding gun head inside the placement groove 202, and when the spacing rod 402 has not completed the separation of the sample adding gun head inside the placement groove 202, the sample adding gun head inside the placement groove 202 will not be separated from the inside of the placement groove 202 under the blowing of the airflow. At the same time, as the spacing rod 402 continues to move, the shielding rod 702 can continuously move outward. When the separation is completed, the support frame 201 drives the separated sample loading gun heads to move downward, and the limit plate 705 can move to the inside of the limit groove 704. This setting moves the sample loading gun heads to the inside of the space of the storage box. In order to slide the storage box out from the inside of the support frame 201, and thus move the spacing rod 402 out from between the multiple sample loading gun heads, the shielding rod 702 will not move to the inside of the support frame 201 under the pull of the spring 703, so that the storage box can move out from the bottom of the support frame 201 normally.

[0047] In one embodiment, for the above-mentioned shielding assembly 8, the shielding assembly 8 includes a shielding cover 801, the shielding cover 801 is rotatably connected to the support frame 201, the bottom of the shielding cover 801 is fixedly connected with a magnetic block 802, the inner wall of the support frame 201 is fixedly connected with an iron block 803 corresponding to the magnetic block 802, and the top of the shielding cover 801 is fixedly connected with a handle 804.

[0048] After the sampling gun tips are arranged in a straight line inside the placement slot 202, the shielding cover 801 is rotated so that the magnetic block 802 on the shielding cover 801 can be adsorbed together with the iron block 803. At this time, the shielding cover 801 can limit the top of the sampling gun tip, so that the sampling gun tip will not fall out of the placement slot 202 under the blowing of the airflow.

[0049] In one embodiment, for the above-mentioned workbench 1 , a positioning frame 9 is fixedly connected to the top of the workbench 1 corresponding to the support frame 201 .

[0050] By moving the storage box directly into the interior of the positioning frame 9, under the positioning of the positioning frame 9, when the support frame 201 drives the well-spaced sampling gun tips to move downward, the bottom of the sampling gun tips can be directly moved into the space on the storage box.

[0051] Through the above technical solution, 1. the support component 2 allows a plurality of sample adding gun tips to be distributed in a straight line, and at the same time, the spacing component 4, driven by the driving component 5, allows the sample adding gun tips inside the support component 2 to be distributed according to the spaces on the storage box, and at the same time, driven by the lifting component 3, a plurality of sample adding gun tips that have been separated can be automatically moved to the corresponding spaces on the storage box. The entire discharge process only requires placing the sample adding gun tip inside the support component 2, and then driving the driving component 5 and the lifting component 3 respectively, so that the operator does not need to manually insert the sample adding gun tip into the space inside the storage box, thereby reducing the labor intensity when placing the sample adding gun tips and improving the efficiency of placement; 2. through the shielding cover 801 can limit the top of the sampling gun heads distributed in a straight line inside the placement slot 202. At this time, the nozzle 604 can blow the sampling gun heads inside the placement slot 202, so that the top protruding positions of adjacent sampling gun heads can touch each other. At the same time, the blocking rod 702 can block one side of the placement slot 202 under the pull of the spring 703, so that the sampling gun heads will not be separated from the inside of the placement slot 202 under the blowing of the airflow. The above arrangement enables the spacing rod 402 to move inside the support frame 201 and separate the sampling gun heads in a straight line without the phenomenon of no sampling gun heads in the space formed by the placement slot 202 and the spacing rod 402, thereby avoiding the phenomenon of missing installation.

[0052] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the utility model. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0053] The preferred embodiments of the utility model disclosed above are intended only to help illustrate the utility model. The preferred embodiments do not describe all details in detail, nor do they limit the utility model to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. This specification selects and describes these embodiments in detail to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A laboratory desktop sample gun tip automatic placement device, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a support assembly (2), the top of the workbench (1) is provided with a lifting assembly (3), the driving end of the lifting assembly (3) is connected to the support assembly (2) by power, the interior of the support assembly (2) is provided with a spacing assembly (4), the bottom of the workbench (1) is provided with a driving assembly (5), the driving assembly (5) is connected to the moving end of the spacing assembly (4) by power, a blowing assembly (6) is provided on one side of the support assembly (2), an elastic limiting assembly (7) is provided on the other side of the support assembly (2), and a shielding assembly (8) is provided on the top of the support assembly (2).

2. The automatic placement device for laboratory desktop pipetting gun tips according to claim 1, characterized in that: The support assembly (2) comprises a support frame (201), the inner wall of the support frame (201) is provided with a placement groove (202), and a plurality of the placement grooves (202) are arranged in an array.

3. The automatic placement device for laboratory desktop pipetting gun tips according to claim 2, characterized in that: The lifting assembly (3) comprises a support frame (301), the support frame (301) is fixedly connected to the workbench (1), the support frame (301) is internally rotatably connected to a lifting screw (302), the outer surface of the lifting screw (302) is threadedly connected to a lifting plate (303), the lifting plate (303) is fixedly connected to the support frame (201), a lifting motor (304) is fixedly installed on the top of the support frame (301), the output end of the lifting motor (304) is fixedly connected to the lifting screw (302), the top of the workbench (1) is fixedly connected to a lifting guide rod (305), and the lifting guide rod (305) is movably connected to the corresponding lifting plate (303).

4. The automatic placement device for laboratory desktop pipetting gun tips according to claim 2, characterized in that: The spacer assembly (4) comprises a movable groove (401), the movable groove (401) passes through the support frame (201), a spacer rod (402) is movably connected inside the movable groove (401), a plurality of spacer rods (402) are arranged in an array, one side of the spacer rod (402) is fixedly connected to a connecting plate (403), and the other sides of the plurality of spacer rods (402) are arranged at an angle.

5. The automatic placement device for laboratory desktop pipetting gun tips according to claim 4, characterized in that: The driving assembly (5) comprises a support plate (501), wherein the support plate (501) is fixedly connected to the bottom of the workbench (1), a driving screw (502) is rotatably connected to one side of the support plate (501), an outer surface of the driving screw (502) is threadedly connected to a driving frame (503), an inner wall of the driving frame (503) is fixedly connected to a fixing rod (504), an outer surface of the fixing rod (504) is movably connected to a connecting frame (505), the connecting frame (505) is fixedly connected to the connecting plate (403), a driving guide rod (506) is fixedly connected to the bottom of the workbench (1), the driving guide rod (506) is movably connected to the connecting frame (505), a driving motor (507) is fixedly mounted on one side of the support plate (501), and an output end of the driving motor (507) is fixedly connected to the driving screw (502).

6. The automatic placement device for laboratory desktop pipetting gun tips according to claim 1, characterized in that: The blowing assembly (6) comprises an exhaust fan (601), the exhaust fan (601) is fixedly mounted on the top of the workbench (1), the output end of the exhaust fan (601) is fixedly connected to a transport pipe (602), one end of the transport pipe (602) is fixedly connected to a compression box (603), the compression box (603) is fixedly mounted on the bottom of the support frame (201), the top of the compression box (603) is fixedly connected to a nozzle (604), and one end of the nozzle (604) is located inside the support frame (201).

7. The automatic placement device for laboratory desktop pipetting gun tips according to claim 4, characterized in that: The elastic limiting assembly (7) comprises a T-shaped rod (701), the T-shaped rod (701) is fixedly connected to the back of the support frame (201), the outer surface of the T-shaped rod (701) is movably connected to a shielding rod (702), a spring (703) is fixedly connected between the shielding rod (702) and the support frame (201), the shielding rod (702) is movably connected to the movable groove (401), one side of the shielding rod (702) is in contact with the outermost spacing rod (402), a limiting groove (704) is provided on the top of the shielding rod (702), and a limiting plate (705) is fixedly connected to the top of the workbench (1) corresponding to the limiting groove (704).

8. The automatic placement device for laboratory desktop pipetting gun tips according to claim 2, characterized in that: The shielding assembly (8) comprises a shielding cover (801), the shielding cover (801) is rotatably connected to the support frame (201), the bottom of the shielding cover (801) is fixedly connected to a magnetic block (802), the inner wall of the support frame (201) is fixedly connected to an iron block (803) corresponding to the magnetic block (802), and the top of the shielding cover (801) is fixedly connected to a handle (804).

9. The automatic placement device for laboratory desktop pipetting gun tips according to claim 1, characterized in that: A positioning frame (9) is fixedly connected to the top of the workbench (1) corresponding to the support frame (201).

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