CN219849698U

CN219849698U - A device for sample is stayed and is got

Info

Publication number: CN219849698U
Application number: CN202223191865.XU
Authority: CN
Inventors: 高阳宜; 杨汉轩
Original assignee: Shijiazhuang Kingmed Diagnostics Examination Laboratory Co ltd
Current assignee: Shijiazhuang Kingmed Diagnostics Examination Laboratory Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-10-20
Anticipated expiration: 2032-11-30

Abstract

The utility model relates to a device for reserving and taking a specimen, which comprises a base, a specimen platform arranged on the base, a specimen placement area arranged on the specimen platform, a plurality of specimen containing grooves arranged in the specimen placement area and used for containing specimen bottles, a gantry bracket arranged on the base in a sliding way along an X axis, a mounting seat arranged on the gantry bracket in a sliding way along a Y axis, a mechanical arm arranged on the mounting seat in a sliding way along a Z axis, and a mechanical arm fixedly arranged at the bottom of the mechanical arm, wherein the mechanical arm comprises a shell, an electromagnet arranged in the shell, and a yielding groove arranged at the bottom of an iron core of the electromagnet, so that an annular sucker is formed at the bottom of the iron core; the top of sample holding tank be provided with the integrative ring channel of intercommunication of sample holding tank, wherein part sample is put the thing groove and is provided with the annular iron sheet of coaxial, etc. technical characteristics. The manipulator disclosed by the utility model has the advantages that the required operation space is too small when grabbing samples, and the stored sample quantity of the sample test bed is greatly increased.

Description

A device for sample is stayed and is got

Technical Field

The utility model belongs to a sample reserving device, and particularly relates to a device for reserving a sample.

Background

In the biochemical detection process, the sample amount detected every day is extremely large, and after the detection of the samples is finished, the samples cannot be directly discarded, but are required to be stored on a test bed, and then proper samples are selected from the samples for storage according to different storage purposes, such as batch number verification storage, linear storage, contrast storage and the like; the sample reserving operation can be performed by adopting a sample reserving device, when the sample reserving device is used for reserving, a specified sample is moved into a specified reserving area from a large number of samples according to an input instruction of a tester to be reserved in a classifying mode, however, the operations are necessarily completed by a manipulator, and the manipulator is composed of two clamping arms hinged through a pin shaft, so that the operation space required in the process of grabbing the sample is overlarge, and the gap between adjacent samples is quite large, so that the sample amount which can be stored on a sample test bench is limited and the sample reserving operation of a large number of samples is not suitable for the biochemical detection process.

Disclosure of Invention

The utility model aims to overcome the defects that in the prior art, the operation space required by a manipulator for grabbing a sample is overlarge and the sample storage amount of a sample test bed is limited, and provides a device for reserving a sample.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a device for sample is stayed and is got, includes the base, set up in sample platform on the base, set up in sample put the thing district on the sample platform, set up in a plurality of sample holding tanks that are used for holding the sample bottle in the sample put the thing district, along the X axle slide set up in the longmen support on the base, along the Y axle slide set up in mount pad on the longmen support, along the Z axle slide set up in the arm on the mount pad, and fixed set up in the manipulator of arm bottom, the manipulator includes the casing, set up in electro-magnet in the casing, the iron core bottom of electro-magnet is provided with the recess of stepping down to form annular sucking disc in the bottom of iron core;

the top of the specimen accommodating groove is provided with an annular groove which is integrally communicated with the specimen accommodating groove, wherein part of annular grooves are internally provided with concentric annular iron sheets, and the inner diameter of each annular iron sheet is larger than or equal to the outer diameter of the specimen bottle body and smaller than the outer diameter of the specimen bottle cap; the diameter of the abdication groove is larger than or equal to the outer diameter of the specimen bottle cap, and the outer diameter of the annular iron sheet and the outer diameter of the annular sucker are larger than the outer diameter of the specimen bottle cap.

Further, a row and column label area is arranged around the specimen placement area;

the specimen storage area is further divided into a specimen temporary storage area and a plurality of specimen reserving areas by a spacing line, and a label marking area is arranged at one end of the specimen temporary storage area and one end of the specimen reserving area;

the number of all the annular iron sheets is equal to that of the annular grooves in the sample temporary storage area, and all the annular iron sheets are respectively arranged in the annular grooves in the sample temporary storage area.

Furthermore, the two sides of the base are provided with X-axis slide ways, the gantry bracket is provided with gantry bracket slide ways which are in sliding fit with the corresponding X-axis slide ways,

the gantry bracket is provided with a gantry bracket threaded hole; an X-axis screw rod is arranged in the threaded hole of the gantry bracket in a penetrating manner, and is in threaded connection with the threaded hole of the gantry bracket;

an X-axis motor is arranged on the base, and a rotation output shaft of the X-axis motor is fixedly connected with the X-axis screw rod.

Further, two cross beams of the gantry bracket are respectively provided with 2Y-axis sliding ways, and the mounting seat is provided with Y-axis sliding grooves which are in sliding fit with the corresponding Y-axis sliding ways;

the mounting seat is provided with a sliding block which is arranged between the two cross beams in a sliding way, the sliding block is provided with a sliding block threaded hole, a Y-axis screw rod is arranged in the sliding block threaded hole in a penetrating way, the Y-axis screw rod is in threaded connection with the sliding block threaded hole,

and a Y-axis motor is fixedly arranged on the gantry support, and a rotation output shaft of the Y-axis motor is fixedly connected with the Y-axis screw rod.

Further, Z-axis sliding ways are arranged on two sides of the mounting seat, and Z-axis sliding ways which are in sliding fit with the corresponding Z-axis sliding ways are arranged on the mechanical arm;

the mechanical arm is also provided with a lug, the lug is provided with a lug threaded hole, a Z-axis screw rod is arranged in the lug threaded hole in a penetrating way, and the Z-axis screw rod is in threaded connection with the lug threaded hole;

the Z-axis motor is fixedly arranged on the mounting seat, and a rotating output shaft of the Z-axis motor is fixedly connected with the Z-axis screw rod.

Further, the specimen platform comprises an upper layer platform plate fixedly arranged on the base, 2 heightening components and a lower layer platform plate erected on the 2 heightening components.

Further, the height-adjusting assembly comprises a rotating shaft which is rotatably arranged on the base, a supporting plate which is fixedly arranged outside the rotating shaft, and the distance from the upper surface of the supporting plate to the axis of the rotating shaft is different from the distance from the lower surface of the supporting plate to the axis of the rotating shaft.

Further, one end of the rotating shaft extends out of the base and is provided with a rotating handle, one end of the rotating shaft, which is close to the rotating handle, is provided with an upper positioning hole, and a positioning pin is inserted into the upper positioning hole;

the base is provided with a bulge, a lower locating hole is formed in the bulge and corresponds to the upper locating hole, and the lower part of the locating pin is inserted into the lower locating hole.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, through improving the structure of the manipulator, utilizing the electromagnetic attraction principle, arranging the abdication groove and the annular suction cup at the bottom of the electromagnet iron core, arranging the annular iron sheet on the sample groove, and grabbing the sample bottle through the attraction effect of the annular iron sheet and the annular suction cup, so that when the electromagnet is electrified, under the action of the electromagnetic attraction force, the annular suction cup and the annular iron sheet are attracted together, the grabbing of the sample bottle can be realized, and when the electromagnet is powered off, the electromagnetic attraction force disappears, the annular suction cup is separated from the annular iron sheet, and the sample bottle can be separated from the manipulator. The manipulator disclosed by the utility model has the advantages that the required operation space is too small when grabbing samples, and the stored sample quantity of the sample test bed is greatly increased.

Drawings

FIG. 1 is a perspective view of one embodiment of the present utility model;

FIG. 2 is an enlarged view at A of FIG. 1;

FIG. 3 is an enlarged view at B of FIG. 1;

FIG. 4 is an enlarged view at C of FIG. 1;

FIG. 5 is a schematic diagram of the structure of an embodiment of the present utility model;

FIG. 6 is a cross-sectional view of FIG. 5 taken along the direction D-D;

FIG. 7 is an enlarged view at E of FIG. 6;

FIG. 8 is a block diagram of a PLC control system according to an embodiment of the present utility model;

fig. 9 is a perspective view of a sample bottle applied to the present utility model.

In the figure: 1. the device comprises a base, a specimen platform, a specimen storage area, a specimen accommodating groove, a gantry bracket, a mounting seat, a mechanical arm, a shell, an electromagnet, a stepping down groove, an 11, an iron core, a 12 and an annular sucker, wherein the base, the specimen platform, the specimen storage area, the specimen accommodating groove, the gantry bracket, the mounting seat, the mechanical arm, the shell, the electromagnet, the stepping down groove, the 11, the iron core and the annular sucker; 13. annular grooves, 14, annular iron sheets, 15, heightening components, 16 and row and column mark areas, 17, interval lines, 18, a sample temporary storage area, 19, a sample reserving area, 20 and a label marking area; 21. the X-axis slideway, 22, an X-axis lead screw, 23, an X-axis motor, 24, a Y-axis slideway, 25, a sliding block, 26, a cross beam, 27, a Y-axis lead screw, 28, a Y-axis motor, 29, a Z-axis slideway, 30, a lug, 31, a Z-axis lead screw, 32, a Z-axis motor, 33, an upper layer platform plate, 34 and a lower layer platform plate; 35. the device comprises a rotating shaft, 36, a supporting plate, 37, a rotating handle, 38, a locating pin, 39, a protrusion, 40, a specimen bottle, 41, a bottle cap, 42, a bottle body, 43, a wire coil, 44, a threading hole, 45, an X-axis distance measuring device, 46, a Y-axis distance measuring device, 47, a Z-axis distance measuring device, 48, an X-axis motor driver, 49, a Y-axis motor driver, 50, a Z-axis motor driver, 51, a PLC (programmable logic controller), 52 and a human-computer interaction interface.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The present utility model will be described in further detail with reference to the accompanying drawings.

An embodiment of a sample bottle 40 is shown in fig. 9, comprising a body 42 and a cap 41 having an outer diameter larger than the outer diameter of the body.

An embodiment of a device for reserving a specimen according to the present utility model as shown in fig. 1 to 7 includes a base 1, a specimen platform 2 disposed on the base 1, a specimen placement area 3 disposed on the specimen platform, a plurality of specimen accommodating grooves 4 disposed in the specimen placement area 3 for accommodating a specimen bottle 40, a gantry bracket 5 slidably disposed on the base 1 along an X axis, a mounting seat 6 slidably disposed on the gantry bracket 5 along a Y axis, a mechanical arm 7 slidably disposed on the mounting seat 6 along a Z axis, and a manipulator fixedly disposed at the bottom of the mechanical arm 7, the manipulator including a housing 8, a threading hole 44 disposed on the housing 8, an electromagnet 9 disposed in the housing 8, the electromagnet 9 including an iron core 11, a wire coil 43 wound on the iron core 11, both ends of the wire coil 43 passing through the threading hole 44 and electrically connected to a power supply, a receding groove 10 disposed at the bottom of the iron core 11 of the electromagnet 9, thereby forming a ring-shaped suction cup 12 at the bottom of the iron core 11;

the top of the specimen accommodating groove 4 is provided with an annular groove 13 which is integrally communicated with the specimen accommodating groove 4, wherein part of the annular groove is internally provided with a concentric annular iron sheet 14, and the inner diameter of the annular iron sheet 14 is larger than or equal to the outer diameter of a bottle body 42 of the specimen bottle 40 and smaller than the outer diameter of a bottle cap 41 of the specimen bottle 40; the diameter of the abdication groove 10 is larger than or equal to the outer diameter of the bottle cap 41 of the specimen bottle 40, and the outer diameter of the annular iron sheet 14 and the outer diameter of the annular sucker 12 are larger than the outer diameter of the bottle cap 41 of the specimen bottle 40, so that after the annular iron sheet 14 and the annular sucker 12 are sucked, when the manipulator is lifted, the annular iron sheet 14 can lift the specimen bottle. According to the utility model, through improving the structure of the manipulator, an electromagnetic attraction principle is utilized, the bottom of the iron core 11 of the electromagnet 9 is provided with the abdication groove 10, the sample bottle is grabbed by the attraction action of the annular iron sheet 14 and the annular suction disc 12, when the manipulator is used, the manipulator moves in place, the upper part of the sample bottle is inserted into the abdication groove 10, the annular suction disc 12 is abutted with the annular iron sheet 14, at the moment, the electromagnet 9 is electrified, when the annular suction disc 12 and the annular iron sheet 14 are attracted together under the action of electromagnetic attraction force, the grabbing of the sample bottle can be realized, the manipulator 7 drives the manipulator to move in place upwards, the manipulator is driven to move downwards through the sliding in the X axis and Y axis directions after moving to a proper position, the electromagnet 9 is powered off, the electromagnetic attraction force disappears, the sample bottle can be separated from the manipulator, and thus the displacement operation of the sample bottle can be realized, and the grabbing of the next sample can be carried out after the manipulator moves upwards again.

As an embodiment of the device for reserving a specimen, a row and column label area 16 is arranged around the specimen placement area 3, and row labels and column labels of specimen placement bottles are arranged in the row and column label area 16.

The specimen storage area 3 is further divided into a specimen temporary storage area 18 and a plurality of specimen reserving areas 19 by a spacing line 17, and a label marking area 20 is arranged at one end of the specimen temporary storage area 18 and one end of the specimen reserving areas 19; the label mark area 20 is internally provided with name labels of all areas;

the number of the annular iron sheets 14 is equal to that of the annular grooves 13 in the sample temporary storage area 18, and all the annular iron sheets 14 are respectively arranged in the annular grooves 13 in the sample temporary storage area 18. In the present utility model, the sample bottle is displaced together with the annular iron piece 14, and therefore, the annular iron piece 14 is only required to be provided in the sample temporary storage area 18.

As an embodiment of the device for reserving specimens, the two sides of the base 1 are provided with X-axis slide ways 21, the gantry bracket 5 is provided with gantry bracket slide ways which are in sliding fit with the corresponding X-axis slide ways 21,

the gantry bracket 5 is provided with a gantry bracket threaded hole; an X-axis screw rod 22 is arranged in the threaded hole of the gantry bracket in a penetrating way, and the X-axis screw rod 22 is in threaded connection with the threaded hole of the gantry bracket;

an X-axis motor 23 is arranged at one end of the X-axis screw 22 on the base 1, and a rotation output shaft of the X-axis motor 23 is fixedly connected with the X-axis screw 22.

As an embodiment of the device for reserving specimens, two cross beams 26 of the gantry bracket 5 are respectively provided with 2Y-axis slide ways 24, and the mounting seat 6 is provided with Y-axis slide ways which are in sliding fit with the corresponding Y-axis slide ways 24;

the mounting seat 6 is provided with a sliding block 25, the sliding block 25 is arranged between two cross beams 26 in a sliding way, the sliding block 25 is provided with a sliding block threaded hole, a Y-axis screw rod 27 is arranged in the sliding block threaded hole in a penetrating way, the Y-axis screw rod 27 is in threaded connection with the sliding block threaded hole,

and one end of the Y-axis screw 27 on the gantry bracket 5 is also fixedly provided with a Y-axis motor 28, and a rotation output shaft of the Y-axis motor 28 is fixedly connected with the Y-axis screw 27.

As an embodiment of the device for reserving specimens, two sides of the mounting seat 6 are provided with Z-axis sliding ways 29, and the mechanical arm 7 is provided with Z-axis sliding ways which are in sliding fit with the corresponding Z-axis sliding ways 29;

the mechanical arm 7 is also provided with a lug 30, the lug 30 is provided with a lug threaded hole, a Z-axis screw rod 31 is arranged in the lug threaded hole in a penetrating way, and the Z-axis screw rod 31 is in threaded connection with the lug threaded hole;

the Z-axis motor 32 is fixedly arranged on the mounting seat 6, and a rotation output shaft of the Z-axis motor 32 is fixedly connected with the Z-axis screw rod 31.

As an embodiment of the apparatus for specimen collection of the present utility model, the specimen platform 2 comprises an upper platform plate 33 fixedly provided on the base 1, 2 height adjusting members 15, and a lower platform plate 34 mounted on the 2 height adjusting members 15;

as an embodiment of the apparatus for specimen collection of the present utility model, the height adjusting assembly 15 includes a rotating shaft 35 rotatably disposed on the base 1, and a supporting plate 36 fixedly disposed outside the rotating shaft 35, wherein a distance from an upper surface of the supporting plate 36 to an axis of the rotating shaft 35 is different from a distance from a lower surface of the supporting plate 36 to the axis of the rotating shaft 35. The present utility model allows for adjustment of the lower deck plate 34 at 2 different heights.

As an embodiment of the device for reserving a specimen, a rotating handle 37 is arranged at one end of the rotating shaft 35 extending out of the base 1, an upper positioning hole is arranged at one end of the rotating shaft 35 close to the rotating handle 37, and a positioning pin 38 is inserted in the upper positioning hole;

the base 1 is provided with a protrusion 39, a lower positioning hole is formed in a position, corresponding to the upper positioning hole, on the protrusion 39, and the lower portion of the positioning pin 38 is inserted into the lower positioning hole.

As one embodiment of the device for reserving samples, the utility model further comprises a PLC control system, wherein the PLC control system belongs to the prior art and is a commercially available part, and because the problem of automatic control is solved, the technical problem of large operation space during grabbing of a manipulator which is not solved by the utility model is solved, and therefore, the specific structure and the control mode are not repeated herein.

As an embodiment of the device for specimen collection, the device further comprises a PLC control system, the PLC control system may further adopt the following technical scheme, as shown in fig. 8, the PLC control system comprises a PLC controller 51, an X-axis distance measuring device 45 for detecting that the X-axis direction of the manipulator is in place, a Y-axis distance measuring device 46 for detecting that the Y-axis direction of the manipulator is in place, a Z-axis distance measuring device 47 for detecting that the Z-axis direction of the manipulator is in place, an X-axis motor driver 48 for driving the X-axis motor 23, a Y-axis motor driver 49 for driving the Y-axis motor 28, a Z-axis motor driver 50 for driving the Z-axis motor 32, and a man-machine interface 52, wherein the Z-axis distance measuring device, the X-axis motor driver, the Y-axis motor driver, and the Z-axis motor driver are all in communication connection with the PLC controller, and the communication end of the PLC controller is also connected with the man-machine interface for realizing man-machine interaction.

As another embodiment of the device for specimen collection, the X-axis distance measuring device 45 and the Y-axis distance measuring device 46 adopt MSE-LT150 type laser distance measuring sensors, the Z-axis distance measuring device 47 adopts MSE-LT150 type laser distance measuring sensors or proximity switches, the PLC controller 51 adopts Siemens S7-1500 series CPU1515-2PN type PLCs, and the X-axis motor driver 48, the Y-axis motor driver 49 and the Z-axis motor driver 50 adopt Raschel MA860C type motor drivers; the human-machine interface 52 employs a siemens PLC touch screen SMART700IEV3.

The above described embodiments are only preferred examples of the utility model and are not exhaustive of the possible implementations of the utility model. Any obvious modifications thereof, which would be apparent to those skilled in the art without departing from the principles and spirit of the present utility model, should be considered to be included within the scope of the appended claims.

Claims

1. The utility model provides a device for sample is stayed and is got, its characterized in that includes base (1), set up in sample platform (2) on base (1), set up in sample put thing district (3) on the sample platform, set up in a plurality of sample holding tanks (4) that are used for holding sample bottle (40) in sample put thing district (3), along the sliding of X axle set up gantry support (5) on base (1), along the sliding of Y axle set up in mount pad (6) on gantry support (5), along the sliding of Z axle set up in arm (7) on mount pad (6), and fixed set up in the manipulator of arm (7) bottom, the manipulator includes casing (8), set up in electromagnet (9) in casing (8), the iron core (11) bottom of electromagnet (9) is provided with and gives way recess (10) to form annular sucking disc (12) in the bottom of iron core (11);

an annular groove (13) which is integrally communicated with the specimen accommodating groove (4) is formed in the top of the specimen accommodating groove (4), a concentric annular iron sheet (14) is arranged in part of the annular groove, and the inner diameter of the annular iron sheet (14) is larger than or equal to the outer diameter of a bottle body (42) of the specimen bottle (40) and smaller than the outer diameter of a bottle cap (41) of the specimen bottle (40); the diameter of the abdication groove (10) is larger than or equal to the outer diameter of the bottle cap (41) of the specimen bottle (40), and the outer diameter of the annular iron sheet (14) and the outer diameter of the annular sucker (12) are larger than the outer diameter of the bottle cap (41) of the specimen bottle (40).

2. A device for specimen retrieval according to claim 1, characterized in that the specimen placement area (3) is peripherally provided with a row and column label area (16);

the sample storage area (3) is further divided into a sample temporary storage area (18) and a plurality of sample reserving areas (19) through spacing lines (17), and a label marking area (20) is arranged at one end of the sample temporary storage area (18) and one end of the sample reserving areas (19);

the number of all the annular iron sheets (14) is equal to the number of the annular grooves (13) in the sample temporary storage area (18), and all the annular iron sheets (14) are respectively arranged in the annular grooves (13) in the sample temporary storage area (18).

3. The device for specimen collection according to claim 1, wherein the two sides of the base (1) are provided with X-axis slide ways (21), the gantry support (5) is provided with gantry support slide ways which are in sliding fit with the corresponding X-axis slide ways (21),

a gantry bracket threaded hole is formed in the gantry bracket (5); an X-axis screw rod (22) is arranged in the threaded hole of the gantry bracket in a penetrating way, and the X-axis screw rod (22) is in threaded connection with the threaded hole of the gantry bracket;

an X-axis motor (23) is arranged on the base (1), and a rotation output shaft of the X-axis motor (23) is fixedly connected with the X-axis screw rod (22).

4. The device for specimen collection according to claim 1, wherein 2Y-axis slides (24) are respectively arranged on two cross beams (26) of the gantry bracket (5), and Y-axis slide grooves which are in sliding fit with the corresponding Y-axis slide grooves (24) are arranged on the mounting seat (6);

the mounting seat (6) is provided with a sliding block (25), the sliding block (25) is arranged between the two cross beams (26) in a sliding way, the sliding block (25) is provided with a sliding block threaded hole, a Y-axis screw rod (27) is arranged in the sliding block threaded hole in a penetrating way, the Y-axis screw rod (27) is in threaded connection with the sliding block threaded hole,

and a Y-axis motor (28) is fixedly arranged on the gantry bracket (5), and a rotation output shaft of the Y-axis motor (28) is fixedly connected with the Y-axis screw rod (27).

5. The device for specimen collection according to claim 1, wherein Z-axis slides (29) are provided on both sides of the mounting base (6), and Z-axis slide grooves slidably engaged with the corresponding Z-axis slide grooves (29) are provided on the mechanical arm (7);

the mechanical arm (7) is also provided with a lug (30), the lug (30) is provided with a lug threaded hole, a Z-axis screw rod (31) is arranged in the lug threaded hole in a penetrating way, and the Z-axis screw rod (31) is in threaded connection with the lug threaded hole;

the Z-axis motor (32) is fixedly arranged on the mounting seat (6), and a rotation output shaft of the Z-axis motor (32) is fixedly connected with the Z-axis screw rod (31).

6. A device for specimen retrieval according to claim 1, characterized in that the specimen platform (2) comprises an upper platform plate (33) fixedly arranged on the base (1) and 2 elevation modules (15), and a lower platform plate (34) arranged on the 2 elevation modules (15).

7. The device for specimen collection according to claim 6, wherein the height adjusting assembly (15) comprises a rotating shaft (35) rotatably arranged on the base (1), a supporting plate (36) fixedly arranged outside the rotating shaft (35), and a distance from an upper surface of the supporting plate (36) to an axis of the rotating shaft (35) is different from a distance from a lower surface of the supporting plate (36) to an axis of the rotating shaft (35).

8. A device for specimen retrieval according to claim 7, wherein,

one end of the rotating shaft (35) extends out of the base (1) and then is provided with a rotating handle (37), one end of the rotating shaft (35) close to the rotating handle (37) is provided with an upper positioning hole, and a positioning pin (38) is inserted into the upper positioning hole;

the base (1) is provided with a bulge (39), a lower locating hole is formed in the bulge (39) at a position corresponding to the upper locating hole, and the lower part of the locating pin (38) is inserted into the lower locating hole.