CN215180271U - Sample adding device - Google Patents

Abstract

The application discloses a sample adding device, which comprises a bottom plate, a sample frame, a sample tube, a placing box, a suction nozzle, a sample adding frame, a sample adding box, two vertical frames, a moving driving mechanism and a suction assembly, wherein the suction nozzle is arranged on the bottom plate; the suction assembly is provided with a joint; the moving driving mechanism comprises a forward moving plate, a forward moving driving component, a transverse moving plate, a transverse moving driving component, a lifting plate and a lifting driving component; the suction assembly is mounted on the lifting plate. Because the mobile driving mechanism is arranged between the two vertical frames, and the top of the forward moving plate of the mobile driving mechanism is flush with the top of the vertical frames, the main structure of the mobile driving mechanism is close to and is positioned in a gap formed between the two vertical frames; make full use of the space that forms between two grudging posts, and be unlikely to occupy the too much space at grudging post top, can make the structure of application of sample device more compact, and then reduce the size of application of sample device. After the integral size of the sample adding device is reduced, the whole of the subsequent sample adding device can be put into the biological safety cabinet.

Description

Sample adding device

Technical Field

The application relates to the field of medical equipment, in particular to a sample adding device.

Background

A biological safety cabinet (bsc) is a box-type air purification negative pressure safety device that can prevent aerosol from escaping from some dangerous or unknown biological particles contained in the experimental operation treatment process. The protective screen is widely applied to scientific research, teaching, clinical examination and production in the fields of microbiology, biomedicine, genetic engineering, biological products and the like, and is the most basic safety protective equipment in the primary protective screen in the biological safety of laboratories.

In the prior art, when nucleic acid detection is carried out, manual single sample adding is carried out: the manual sample adding in the biological safety cabinet for one time has the defects of more required processes and low efficiency. Therefore, a PCR (Polymerase Chain Reaction) sample adding system (sample adding device) is provided, but the current PCR sample adding system is large and cannot be placed in a biological safety cabinet.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide, a application of sample device aims at solving prior art, and application of sample device structure is not compact, and is bulky, is difficult for putting into the problem in the biological safety cabinet.

To achieve the purpose, the embodiment of the application adopts the following technical scheme:

the sample adding device comprises a bottom plate, a sample frame arranged on the bottom plate, a sample tube arranged on the sample frame, a placing box arranged on the bottom plate, a suction nozzle arranged in the placing box, a sample adding frame arranged on the bottom plate, a sample adding box arranged on the sample adding frame, two vertical frames arranged on the bottom plate, a moving driving mechanism arranged between the two vertical frames, and a suction assembly arranged at the output end of the moving driving mechanism; the suction assembly is provided with a joint used for being clamped with the suction nozzle; the two vertical frames are arranged oppositely and at intervals; the moving driving mechanism comprises forward moving plates which are slidably arranged on the two vertical frames, forward moving driving components for driving the forward moving plates to move, transverse moving plates which are slidably arranged on the forward moving plates, transverse moving driving components for driving the transverse moving plates to move, lifting plates which are slidably arranged on the transverse moving plates, and lifting driving components for driving the lifting plates to move; the sucking assembly is arranged on the lifting plate; the relative both ends of antedisplacement board respectively with two stand sliding connection, the top of antedisplacement board with the top parallel and level of stand.

In one embodiment, the sample adding device further comprises a back plate connected with the bottom plate, and an ultraviolet disinfection lamp is installed on the back plate.

In one embodiment, the advancement drive assembly comprises an advancement motor mounted on the stand, an advancement screw shaft connected to the advancement motor, and an advancement screw nut mounted on the advancement screw shaft; the forward lead screw nut is connected with the vertical frame in a sliding mode, and the forward moving plate is connected with the forward lead screw nut.

In one embodiment, the advancing drive assembly further comprises an advancing guide rail arranged on the stand, and an advancing slider slidably mounted on the advancing guide rail; the forward lead screw nut is connected with the forward sliding block.

In one embodiment, the advancing driving assembly further comprises an advancing position sensor arranged on the stand, and an advancing trigger piece arranged on the advancing plate and used for triggering the advancing position sensor.

In one embodiment, the traverse driving assembly includes a traverse motor mounted on the advance plate, a traverse driving wheel mounted on an output shaft of the traverse motor, a traverse driven wheel rotatably mounted on the traverse plate, and a traverse transmission belt disposed between the traverse driving wheel and the traverse driven wheel; the transverse moving plate is connected with the transverse moving transmission belt.

In one embodiment, the traverse driving assembly further comprises a traverse guide rail arranged on the advancing plate, and a traverse slide block slidably arranged on the traverse guide rail; the transverse moving plate is connected with the transverse moving slide block.

In one embodiment, the traverse driving assembly further comprises a traverse position sensor provided on the advancing plate, and a traverse trigger sheet provided on the traverse plate and configured to trigger the traverse position sensor.

In one embodiment, the lifting drive assembly comprises a lifting motor mounted on the traverse plate, a lifting screw shaft connected to the lifting motor, and a lifting screw nut mounted on the lifting screw shaft; the lifting screw nut is connected with the transverse moving plate in a sliding mode, and the lifting plate is connected with the lifting screw nut.

In one embodiment, the lifting driving assembly further comprises a lifting guide rail arranged on the traverse plate, and a lifting slider slidably arranged on the lifting guide rail; the lifting screw nut is connected with the lifting slider (the lifting driving assembly further comprises a lifting position sensor arranged on the transverse moving plate and a lifting trigger piece arranged on the lifting plate and used for triggering the lifting position sensor).

In one embodiment, the number of the sample tubes on the sample rack is multiple, the placing box is internally provided with a plurality of suction nozzles, and the number of the joints is multiple; the suction assembly comprises a suction bracket arranged at the output end of the mobile driving mechanism, a suction motor arranged at the output end of the mobile driving mechanism, a suction screw shaft connected with the suction motor, a suction screw nut arranged on the suction screw shaft, and a suction piston piece connected with the suction screw nut; the joint is communicated with the suction piston piece; the plurality of joints are slidably arranged on the suction bracket, and the joints are provided with adjusting bulges; the suction assembly further comprises an adjusting roller rotatably mounted on the suction support, a worm wheel connected with the adjusting roller, a worm matched with the worm wheel, and an adjusting motor used for driving the worm to rotate; the adjusting roller is provided with a plurality of spiral grooves which correspond to the joints one by one, and the adjusting bulges on the joints are inserted into the spiral grooves; when the adjusting roller rotates, the joints can slide relative to the suction support to change the distance between the adjacent joints.

In one embodiment, a sealing ring is provided on the joint.

In one embodiment, the sample adding device further comprises two pre-tightening rods rotatably mounted on the bottom plate, and a pre-tightening driving member for driving the pre-tightening rods to rotate; the two pre-tightening rods are respectively abutted against two opposite side surfaces of the placing box; the cross section of the pre-tightening rod is oval.

In one embodiment, the pretensioned drive is an electric motor.

The beneficial effects of the embodiment of the application are as follows: because the mobile driving mechanism is arranged between the two vertical frames, and the top of the forward moving plate of the mobile driving mechanism is flush with the top of the vertical frames, the main structure of the mobile driving mechanism is close to and is positioned in a gap formed between the two vertical frames; make full use of the space that forms between two grudging posts, and be unlikely to occupy the too much space at grudging post top, can make the structure of application of sample device more compact, and then reduce the size of application of sample device. After the integral size of the sample adding device is reduced, the whole of the subsequent sample adding device can be put into the biological safety cabinet.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a sample adding device in an embodiment of the present application;

FIG. 2 is a schematic view of a forward drive assembly according to an embodiment of the present application;

FIG. 3 is a schematic illustration of a traverse drive assembly in an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a lift drive assembly according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a suction assembly according to an embodiment of the present application;

FIG. 6 is a partial view of a suction assembly in an embodiment of the present application;

FIG. 7 is a storage case according to an embodiment of the present application;

in the figure:

100. a movement drive mechanism; 1001. a forward moving plate; 1002. transversely moving the plate; 1003. a lifting plate; 2. a forward drive assembly; 201. a forward moving motor; 202. advancing the screw shaft; 203. advancing the screw nut; 204. advancing the guide rail; 205. moving the sliding block forwards; 206. a forward movement position sensor; 207. moving the trigger piece forward; 3. a traverse driving assembly; 301. a traversing motor; 302. a driving wheel is transversely moved; 303. transversely moving the driven wheel; 304. transversely moving the transmission belt; 305. transversely moving the guide rail; 306. transversely moving the sliding block; 307. a lateral movement position sensor; 308. a lateral movement trigger piece; 4. a lift drive assembly; 401. a lifting motor; 402. a lifting screw shaft; 403. a lifting lead screw nut; 404. a lifting guide rail; 405. a lifting slide block; 406. a lifting position sensor; 407. a lifting trigger piece; 5. erecting a frame; 6. a back plate; 7. an ultraviolet disinfection lamp; 8. a seal ring; 9. a suction assembly; 901. a joint; 9011. an adjusting projection; 902. sucking the bracket; 903. a suction motor; 904. sucking a lead screw shaft; 905. sucking a screw nut; 906. a suction piston member; 907. a regulating roller; 9071. a helical groove; 908. a turbine; 909. adjusting the motor; 9091. a worm; 10. a suction nozzle; 11. a sample adding frame; 12. a sample adding box; 13. a base plate; 14. a sample rack; 15. a sample tube; 16. placing the box; 17. and pre-tightening the rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The following detailed description of implementations of the present application is provided in conjunction with specific embodiments.

As shown in fig. 1-3, an embodiment of the present application provides a sample adding device, which includes a bottom plate 13, a sample rack 14 disposed on the bottom plate 13, a sample tube 15 disposed on the sample rack 14, a placing box 16 disposed on the bottom plate 13, a suction nozzle 10 disposed in the placing box 16, a sample adding rack 11 disposed on the bottom plate 13, a sample adding box 12 disposed on the sample adding rack 11, two vertical racks 5 disposed on the bottom plate 13, a moving driving mechanism 100 disposed between the two vertical racks 5, and a suction assembly 9 disposed at an output end of the moving driving mechanism 100; the suction assembly 9 is provided with a joint 901 for clamping with the suction nozzle 10; the two vertical frames 5 are opposite and arranged at intervals; the movement driving mechanism 100 comprises a forward moving plate 1001 slidably mounted on two vertical stands 5, a forward moving driving assembly 2 for driving the forward moving plate 1001 to move, a traverse moving plate 1002 slidably mounted on the forward moving plate 1001, a traverse moving driving assembly 3 for driving the traverse moving plate 1002 to move, a lifting plate 1003 slidably mounted on the traverse moving plate 1002, and a lifting driving assembly 4 for driving the lifting plate 1003 to move; the suction assembly 9 is arranged on the lifting plate 1003; the two opposite ends of the advancing plate 1001 are slidably connected to the two stands 5, respectively, and the top of the advancing plate 1001 is flush with the top of the stands 5.

In an embodiment of the present application, a sample loading process of the sample loading device is as follows: the sample tube 15 has sample liquid therein, the moving driving mechanism 100 drives the joint 901 to reach the upper side of the placing box 16, and drives the joint 901 to be inserted into the suction nozzle 10 in the placing box 16, the suction nozzle 10 is clamped with the joint 901, then the moving driving mechanism 100 continues to drive the joint 901 to move, and the suction assembly 9 is inserted into the sample tube 15 through the suction nozzle 10 on the joint 901 to suck the sample liquid. After the sample liquid is sucked, the driving mechanism 100 is moved to drive the joint 901 to reach the upper part of the sample adding box 12, and the sucking component 9 injects the sample liquid sucked by the suction nozzle 10 into the sample adding box 12, so as to complete the sample adding operation.

The process of driving the suction assembly 9 to move by the moving driving mechanism 100 is as follows: the forward driving component 2 drives the forward plate 1001 to move forward and backward along the vertical frame 5; the traverse driving component 3 drives the traverse plate 1002 to move transversely along the length direction of the forward plate 1001; the lifting driving component 4 drives the lifting plate 1003 to do lifting motion along the height direction of the traverse plate 1002; and then the sucking component 9 is driven to move, and the requirements that the sucking component 9 reaches the positions of the sample tube 15, the suction nozzle 10, the sample adding box 12 and the like are met.

Since the movement driving mechanism 100 is installed between the two vertical stands 5, and the top of the advancing plate 1001 of the movement driving mechanism 100 is flush with the top of the vertical stand 5, the main structure of the movement driving mechanism 100 is close to the gap formed between the two vertical stands 5; the space formed between the two vertical frames 5 is fully utilized, the excessive space at the tops of the vertical frames 5 is not occupied, the structure of the sample adding device can be more compact, and the size of the sample adding device is further reduced. After the holistic size of application of sample device reduces, in the whole biosafety cabinet of putting into of follow-up application of sample device, automatic completion each item operation need not to put into the biosafety cabinet again behind the outside application of sample of biosafety cabinet, has reduced the risk of using, has ensured the security, has also promoted the efficiency of application of sample simultaneously.

Optionally, the number of the sample tubes 15 may be set to be equal to or more than 96, so as to realize sample loading in large batches.

Referring to fig. 1, as another embodiment of the sample adding device provided in the present application, the sample adding device further includes a back plate 6 connected to the bottom plate 13, and the ultraviolet disinfection lamp 7 is installed on the back plate 6. The ultraviolet disinfection lamp 7 can kill viruses in the suction nozzle 10, and the ultraviolet disinfection lamp 7 can be opposite to the suction nozzle 10 so as to continuously disinfect the suction nozzle 10.

Referring to fig. 2, as another embodiment of the sample adding device provided by the present application, the advancing driving assembly 2 includes an advancing motor 201 installed on the stand 5, an advancing screw shaft 202 connected to the advancing motor 201, and an advancing screw nut 203 installed on the advancing screw shaft 202; the advancing screw nut 203 is slidably connected to the stand 5, and the advancing plate 1001 is connected to the advancing screw nut 203. The advance motor 201 drives the advance plate 1001 to move forward and backward along the vertical frame 5 by the cooperation of the advance screw shaft 202 and the advance screw nut 203.

Referring to fig. 2, as another embodiment of the sample adding device provided in the present application, the forward movement driving assembly 2 further includes a forward movement guide 204 disposed on the stand 5, and a forward movement sliding block 205 slidably mounted on the forward movement guide 204; the advancing screw nut 203 is connected to the advancing slider 205. The forward movement guide rail 204 performs a limiting guide function on the movement of the forward movement plate 1001 through the forward movement slider 205, so that the forward movement plate 1001 approaches to move only along the forward movement guide rail 204, the deviation is not easy to occur, and the position accuracy during the movement is ensured.

Referring to fig. 2, as another embodiment of the sample adding device provided in the present application, the forward driving assembly 2 further includes a forward position sensor 206 disposed on the stand 5, and a forward trigger piece 207 disposed on the forward plate 1001 and used for triggering the forward position sensor 206, and used for detecting a position of the forward plate 1001 to prevent the forward plate 1001 from moving excessively.

Referring to fig. 3, as another embodiment of the sample adding device provided by the present application, the traverse driving assembly 3 includes a traverse motor 301 mounted on a front plate 1001, a traverse driving wheel 302 mounted on an output shaft of the traverse motor 301, a traverse driven wheel 303 rotatably mounted on the traverse plate 1002, and a traverse transmission belt 304 disposed between the traverse driving wheel 302 and the traverse driven wheel 303; the traverse plate 1002 is coupled to the traverse belt 304. The traverse motor 301 drives the traverse transmission belt 304 to move through the cooperation of the traverse driving wheel 302 and the traverse driven wheel 303, and further drives the traverse plate 1002 to move transversely along the advancing plate 1001.

Referring to fig. 3, as another embodiment of the sample feeding device provided in the present application, the traverse driving assembly 3 further includes a traverse guide 305 disposed on the advancing plate 1001, and a traverse slider 306 slidably mounted on the traverse guide 305; the traverse plate 1002 is connected to the traverse slide 306. The traverse guide 305 provides a limiting and guiding function for the movement of the traverse plate 1002 through the traverse slider 306, so that the traverse plate 1002 approaches to move only along the length direction of the traverse guide 305 and is not easy to shift.

Referring to fig. 3, as another embodiment of the sample adding device provided by the present application, the traverse driving assembly 3 further includes a traverse position sensor 307 disposed on the traverse plate 1001, and a traverse trigger piece 308 disposed on the traverse plate 1002 and used for triggering the traverse position sensor 307, and used for detecting the position of the traverse plate 1002 to prevent the traverse plate 1002 from moving excessively.

Referring to fig. 4, as another embodiment of the sample adding device provided in the present application, the lifting driving assembly 4 includes a lifting motor 401 mounted on the traverse plate 1002, a lifting screw shaft 402 connected to the lifting motor 401, and a lifting screw nut 403 mounted on the lifting screw shaft 402; the elevator screw nut 403 is slidably connected to the traverse plate 1002, and the elevator plate 1003 is connected to the elevator screw nut 403. The lifting motor 401 drives the lifting plate 1003 to move up and down along the traverse plate 1002 through the matching of the lifting lead screw nut 403 and the lifting lead screw shaft 402.

Referring to fig. 4, as another embodiment of the sample adding device provided in the present application, the lifting driving assembly 4 further includes a lifting guide rail 404 disposed on the traverse plate 1002, and a lifting slider 405 slidably mounted on the lifting guide rail 404; the lift screw nut 403 is connected to a lift slide 405. The lifting guide rail 404 performs limit guide on the lifting movement of the lifting plate 1003 through the lifting slider 405, so that the lifting plate 1003 approaches to move only along the length direction of the lifting guide rail 404 and is not easy to deviate.

Referring to fig. 4, as another embodiment of the sample adding device provided in the present application, the lifting driving assembly 4 further includes a lifting position sensor 406 disposed on the traverse plate 1002, and a lifting trigger piece 407 disposed on the lifting plate 1003 and used for triggering the lifting position sensor 406 to detect the position of the lifting plate 1003, so as to prevent the lifting plate 1003 from moving excessively.

Referring to fig. 1 and fig. 5-6, as another embodiment of the sample adding device provided by the present application, a plurality of sample tubes 15 are disposed on a sample rack 14, a plurality of suction nozzles 10 are disposed in a placing box 16, and a plurality of connectors 901 are disposed; the suction assembly 9 comprises a suction bracket 902 mounted at the output end of the movement driving mechanism 100, a suction motor 903 mounted at the output end of the movement driving mechanism 100, a suction screw shaft 904 connected with the suction motor 903, a suction screw nut 905 mounted at the suction screw shaft 904, and a suction piston 906 connected with the suction screw nut 905 (similar to the structure of a syringe, suction and liquid discharge can be realized by drawing); the joint 901 communicates with the suction piston member 906; a plurality of joints 901 are slidably mounted on the suction bracket 902, and adjusting protrusions 9011 are arranged on the joints 901; the suction assembly 9 further comprises an adjusting roller 907 rotatably mounted on the suction bracket 902, a turbine 908 connected with the adjusting roller 907, a worm 9091 matched with the turbine 908, and an adjusting motor 909 for driving the worm 9091 to rotate; a plurality of spiral grooves 9071 which correspond to the joints 901 one by one are formed in the adjusting roller 907, and adjusting protrusions 9011 on the joints 901 are inserted into the spiral grooves 9071; when the adjustment roller 907 rotates, the plurality of joints 901 can slide relative to the suction brackets 902 to change the pitch between the adjacent joints 901.

The working process of the suction assembly 9 is as follows: the movable driving mechanism 100 drives the joint 901 to reach the upper part of the placing box 16, and drives the joint 901 to be inserted into the suction nozzle 10 in the placing box 16, the suction nozzle 10 is clamped with the joint 901, then the movable driving mechanism 100 continues to drive the joint 901 to move, and the suction assembly 9 is inserted into the sample tube 15 through the suction nozzle 10 on the joint 901 to suck sample liquid. The suction motor 903 drives the suction piston 906 to move through the matching of the suction screw shaft 904 and the suction screw nut 905, so as to drive the suction piston 906 to draw, so that the suction piston 906 sucks sample liquid from the sample tube 15 through the joint 901 and the suction nozzle 10, and the sucked sample liquid is discharged into the sample adding box 12.

Corresponding to the case where the gap between the sample tubes 15 and the gap between the suction nozzles 10 are different: when the plurality of joints 901 are all clamped with the suction nozzles 10 at the same time, in order to satisfy the requirement that the suction nozzles 10 on the plurality of joints 901 can be inserted into the corresponding sample tubes 15 at the same time, the gaps between the joints 901 are adjusted. At this time, the adjusting motor 909 drives the adjusting rollers 907 to rotate through the cooperation of the worm 9091 of the worm wheel 908, and as the adjusting protrusions 9011 of the joints 901 are inserted into the spiral grooves 9071 of the adjusting rollers 907, the adjusting rollers 907 can drive the joints 901 to slide along the suction brackets 902 through the spiral grooves 9071 when rotating, so as to change the gaps between the joints 901, so that the gaps between the joints 901 are matched with the gaps between the sample tubes 15, and at this time, the suction nozzles 10 on the joints 901 can be respectively inserted into the sample tubes 15.

Optionally, specifications of the spiral grooves 9071 corresponding to each joint 901 may be different, so as to drive the joints 901 to move to a preset distance. It can be understood that adjusting the different rotation directions of the motor 909 can drive the joint 901 to move in different directions, so as to realize bidirectional adjustment of the joint 901; that is, the gap between the joints 901 can be adjusted to match the gap between the suction nozzles 10, and also can be adjusted to match the gap between the sample tubes 15. Therefore, as for the gap between the suction nozzles 10, it can be set small enough not to be set the same as the gap between the sample tubes 15, thereby reducing the size of the placing box 16. Under the condition that the size of placing box 16 reduces, can reduce bottom plate 13's size, and then reduce the size of application of sample device for in the biological safety cabinet can be put into to the application of sample device, automatic completion each item operation need not to put into again in the biological safety cabinet after the outside application of sample of biological safety cabinet, has reduced the risk of using, has ensured the security, has also promoted the efficiency of application of sample simultaneously.

Referring to fig. 6, as another embodiment of the sample adding device provided by the present application, a sealing ring 8 is disposed on the connector 901, and when the connector 901 is inserted into the suction nozzle 10, the sealing ring 8 can be tightly attached to an inner wall of the suction nozzle 10 to realize sealing, so that the suction nozzle 10 can conveniently suck the sample liquid.

Referring to fig. 1 and fig. 7, as another embodiment of the sample adding device provided by the present application, the sample adding device further includes two pre-tightening rods 17 rotatably mounted on the bottom plate 13, and a pre-tightening driving member for driving the pre-tightening rods 17 to rotate; the two pre-tightening rods 17 are respectively abutted with two opposite side surfaces of the placing box 16; the cross-section of the pretensioning bar 17 is oval. When the adapter 901 is engaged with the suction nozzle 10, the moving drive mechanism 100 lifts the adapter 901, and the suction nozzle 10 is taken out from the storage box 16. Before taking out, the pre-tightening driving piece drives the pre-tightening rods 17 to rotate firstly, so that the end faces of the long shafts of the pre-tightening rods 17 are attached to the surface of the placing box 16, the placing box 16 is clamped by the two pre-tightening rods 17, the placing box 16 is not easy to lift when the suction nozzle 10 is separated from the placing box 16, and the suction nozzle 10 can be smoothly separated from the placing box 16.

Referring to fig. 7, as another embodiment of the sample adding device provided in the present application, the pre-tightening driving member is a motor, which can directly drive the pre-tightening rod 17 to rotate, or can be driven by a gear or a pulley.

It is to be understood that aspects of the present invention may be practiced otherwise than as specifically described.

It should be understood that the above examples are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims (10)

1. The sample adding device is characterized by comprising a bottom plate, a sample frame arranged on the bottom plate, a sample tube arranged on the sample frame, a placing box arranged on the bottom plate, a suction nozzle arranged in the placing box, a sample adding frame arranged on the bottom plate, a sample adding box arranged on the sample adding frame, two vertical frames arranged on the bottom plate, a moving driving mechanism arranged between the two vertical frames and a suction assembly arranged at the output end of the moving driving mechanism; the suction assembly is provided with a joint used for being clamped with the suction nozzle; the two vertical frames are arranged oppositely and at intervals; the moving driving mechanism comprises forward moving plates which are slidably arranged on the two vertical frames, forward moving driving components for driving the forward moving plates to move, transverse moving plates which are slidably arranged on the forward moving plates, transverse moving driving components for driving the transverse moving plates to move, lifting plates which are slidably arranged on the transverse moving plates, and lifting driving components for driving the lifting plates to move; the sucking assembly is arranged on the lifting plate; the relative both ends of antedisplacement board respectively with two stand sliding connection, the top of antedisplacement board with the top parallel and level of stand.

2. The sample adding device of claim 1, further comprising a back plate connected to the bottom plate, wherein the back plate is provided with an ultraviolet disinfection lamp.

3. The sample adding device according to claim 1, wherein the advancing drive assembly comprises an advancing motor mounted on the stand, an advancing lead screw shaft connected to the advancing motor, and an advancing lead screw nut mounted on the advancing lead screw shaft; the forward lead screw nut is connected with the vertical frame in a sliding mode, and the forward moving plate is connected with the forward lead screw nut.

4. The sample adding device according to claim 3, wherein the advancing drive assembly further comprises an advancing guide rail arranged on the stand, and an advancing slider slidably mounted on the advancing guide rail; the forward lead screw nut is connected with the forward sliding block.

5. The sample adding device according to claim 3, wherein the advancing driving assembly further comprises an advancing position sensor disposed on the stand, and an advancing trigger piece disposed on the advancing plate and used for triggering the advancing position sensor.

6. The sample application device of claim 1, wherein the traverse driving assembly comprises a traverse motor mounted on the advancing plate, a traverse driving wheel mounted on an output shaft of the traverse motor, a traverse driven wheel rotatably mounted on the traverse plate, and a traverse transmission belt disposed between the traverse driving wheel and the traverse driven wheel; the transverse moving plate is connected with the transverse moving transmission belt.

7. The sample loading device of claim 6, wherein the traverse driving assembly further comprises a traverse guide rail disposed on the advancing plate, and a traverse slider slidably mounted on the traverse guide rail; the transverse moving plate is connected with the transverse moving slide block.

8. The sample application device of claim 6, wherein the traverse driving assembly further comprises a traverse position sensor disposed on the traverse plate, and a traverse trigger plate disposed on the traverse plate and configured to trigger the traverse position sensor.

9. The sample adding device according to claim 1, wherein the lifting drive assembly comprises a lifting motor mounted on the traverse plate, a lifting lead screw shaft connected with the lifting motor, and a lifting lead screw nut mounted on the lifting lead screw shaft; the lifting screw nut is connected with the transverse moving plate in a sliding mode, and the lifting plate is connected with the lifting screw nut.

10. The sample adding device according to claim 9, wherein the lifting drive assembly further comprises a lifting guide rail disposed on the traverse plate, and a lifting slider slidably mounted on the lifting guide rail; the lifting screw nut is connected with the lifting slide block.

Images