Sample adding device

Abstract

The invention relates to a sample adding device, and relates to the technical field of experimental devices, the sample adding device comprises a cap screwing module, a pipe cap clamping and lifting assembly used for grabbing and lifting a pipe cap, a pipe body clamping and rotating assembly used for clamping and rotating a pipe body, and a slide rail assembly capable of conveying the pipe body clamping and rotating assembly to a next station; the homogeneous proton adding module is used for adding homogeneous protons into the sample tube transmitted along with the tube body clamping and rotating assembly; and / or the salt pouring module is used for adding extraction salt into the sample tube conveyed along with the tube body clamping and rotating assembly. By arranging the cap screwing module, the homogeneous proton adding module and the salt pouring module which work in a linkage mode, automatic operation of cap opening and closing work and homogeneous proton and extraction salt adding work is achieved, the experiment efficiency is effectively improved, and the labor cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of experimental devices, and in particular to a sample adding device. Background Art

[0002] In the process of sample pretreatment using the QuEChERS method, it is sometimes necessary to add substances such as homogenizers and extraction salts to the sample tube, and the sample tube needs to be opened before adding the homogenizers and extraction salts and the sample tube needs to be closed after the homogenizers and extraction salts are added. In the prior art, experimenters usually manually add the homogenizers and extraction salts, which is inefficient and labor-intensive, and needs to be improved. Summary of the invention

[0003] In view of the above problems, the present application is proposed to provide a sample adding device that overcomes the above problems or at least partially solves the above problems.

[0004] The present application provides a sample adding device adopting the following technical solution: A sample adding device, comprising: A cap screwing module, a tube cap clamping and lifting assembly for grabbing and lifting the tube cap, a tube body clamping and rotating assembly for clamping and rotating the tube body, and a slide rail assembly capable of transporting the tube body clamping and rotating assembly to the next station; A homogenizer adding module, used for adding homogenizers into the sample tube transmitted by the tube body clamping rotating assembly; and / or a salt pouring module, used for adding extraction salt into the sample tube transmitted by the tube body clamping rotating assembly.

[0005] Optionally, the pipe cover clamping and lifting assembly includes: A first clamping jaw, used for clamping the tube cover; The clamping cylinder is used to drive the first clamping jaw to vertically rise and fall.

[0006] Optionally, also include, A bearing block is arranged on the top of the clamping cylinder, the first clamping jaw is vertically slidably connected to the bearing block, and a compression spring is arranged at the vertical sliding connection.

[0007] Optionally, also include, The yielding slide rail is arranged below the clamping cylinder and is used for driving the clamping cylinder to slide horizontally.

[0008] Optionally, the tube body clamping and rotating assembly includes: A sleeve is disposed on the base plate; A rotating body, which is arranged inside the sleeve and rotatably connected thereto, and is provided with a lumen for accommodating the tube body; An airbag is arranged in the lumen and is used to abut against and clamp the tube body. When the airbag expands, the airbag abuts against the tube body, and the tube body is clamped and fixed in the lumen; when the airbag contracts, the airbag and the tube body are separated, and the tube body can be separated from the lumen; And a rotation driving assembly is used for driving the rotating body to rotate along the sleeve.

[0009] Optionally, the homogenizer adding module includes: The sorting cylinder is rotatably connected to the base plate, and a plurality of discharge holes are evenly arranged at the bottom edge along the circumferential direction thereof; The inclined plate is arranged in the sorting barrel, and an arc groove is arranged on a lower side along the circumferential direction thereof, wherein the arc groove and the barrel wall of the sorting barrel form a material discharge trough connected with the material discharge hole; A material discharge cylinder is arranged below the base plate and can be connected with the material discharge hole; And a material discharge driving assembly is used for driving the sorting barrel to rotate along the base plate, and during the rotation process, the material discharge barrel can be connected with the material discharge hole in sequence.

[0010] Optionally, several liquid adding tubes are also included.

[0011] Optionally, the salt pouring module includes: A balance wheel is rotatably connected to the base plate and is provided with a lever; A pendulum rod, arranged on the other side of the base plate and rotating along the vertical direction together with the balance wheel; A second clamping jaw is horizontally arranged at one end of the swing rod away from the balance wheel, and is used to clamp the test tube; and when the balance wheel rotates, the second clamping jaw drives the tube body to flip and tilt; A connecting plate, one end of which is located at a side of the base plate where the balance wheel is arranged and is vertically slidably connected to the base plate, a tension spring is arranged at the sliding connection, and when the balance wheel rotates, the lever can drive the connecting plate to slide vertically downward along the base plate; The other end extends to the other side of the base plate and is vertically provided with a funnel, which is arranged opposite to the second clamp. When the balance wheel rotates, the second clamp drives the tube body to flip and the funnel moves vertically downward along with the connecting plate. When the balance wheel rotates a certain angle, the tube body mouth is inserted into the funnel.

[0012] Optionally, an arc-shaped baffle is also provided on the top of the funnel.

[0013] Optionally, a vibration motor is provided on the rocker arm and / or the connecting plate.

[0014] In summary, this application includes the following beneficial technical effects: 1. This application realizes the automatic opening and closing of the lid and the addition of homogenizers and extraction salts by setting up a linked working cover screwing module, a homogenizer adding module and a salt pouring module, which effectively improves the experimental efficiency and reduces the labor cost.

[0015] 2. By setting a liquid adding tube on the lower barrel or funnel, the simultaneous addition of the extracting liquid when adding the homogenizer and the extraction salt is achieved, further improving the addition efficiency of the sample pretreatment extraction position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0017] Figure 2 It is a structural schematic diagram of the cover screwing module in the embodiment of the present application.

[0018] Figure 3 It is a schematic diagram of the structure of the tube body clamping and rotating assembly in the embodiment of the present application.

[0019] Figure 4 It is a structural schematic diagram of the homogenous proton addition module in the embodiment of the present application.

[0020] Figure 5 It is a schematic diagram of the structure inside the sorting cylinder in the embodiment of the present application.

[0021] Figure 6 It is a cross-sectional view of the homogenous proton addition module in the embodiment of the present application.

[0022] Figure 7 It is a schematic diagram of the connection structure of the balance wheel and the pendulum rod in the embodiment of the present application.

[0023] Figure 8 It is a schematic diagram of the connection structure between the balance wheel and the connecting plate in the embodiment of the present application.

[0024] Fig. 9 It is a schematic diagram of the working status of the salt pouring module in the embodiment of the present application.

[0025] Explanation of the reference numerals: 1. Cap screwing module; 11. Tube cap clamping and lifting assembly; 111. First clamping jaw; 112. Clamping cylinder; 113. Carrying block; 1131. Compression spring; 12. Tube body clamping and rotating assembly; 121. Sleeve; 122. Rotating body; 123. Airbag; 13. Yielding slide rail; 14. Slide rail assembly; 141. Waste liquid recovery cylinder; 2. Homogenizer adding module; 21. Sorting cylinder; 211. Feeding hole; 22. Inclined plate; 221. Arc groove; 23. Feeding barrel; 3. Salt pouring module; 31. Pendulum wheel; 311. Dial rod; 32. Pendulum rod; 33. Second clamping jaw; 34. Connecting plate; 341. Tension spring; 342. Funnel; 3421. Arc baffle; 35. Vibration motor; 4. Liquid adding tube. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiment is one embodiment of the present invention, not all embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Unless otherwise defined, technical or scientific terms used in the present invention shall have the common meanings understood by one having ordinary skills in the field to which the present invention belongs.

[0028] This embodiment provides a sample adding device.

[0029] Reference Figure 1 A sample adding device includes a capping module 1, a homogenizer adding module 2 and a salt pouring module 3. The capping module 1 is used to open and close the sample tube and transport the sample tube to the homogenizer adding module 2 and the salt pouring module 3. The homogenizer adding module 2 and the salt pouring module 3 are used to add homogenizers and extraction salts into the sample tube, respectively.

[0030] Reference Figure 1-Figure 3 The cap screwing module 1 includes a tube cap clamping and lifting assembly 11 and a tube body clamping and rotating assembly 12. The tube cap clamping and lifting assembly 11 can clamp and fix the tube cap and drive it to lift vertically, and includes a first clamping jaw 111 and a clamping cylinder 112. The first clamping jaw 111 is used to clamp and fix the tube cap, and the clamping cylinder 112 is used to carry the first clamping jaw 111 and drive it to lift vertically.

[0031] The tube body clamping rotating assembly 12 is relatively arranged below the tube cover clamping lifting assembly 11, and is used to clamp the tube body and drive it to rotate, and includes a sleeve 121, a rotating body 122, an airbag 123, and a rotating driving assembly. The sleeve 121 is vertically arranged on the base plate, the rotating body 122 is vertically arranged in the sleeve 121 and is rotatably connected thereto, and the rotating driving assembly is used to drive the rotating body 122 to rotate along the sleeve 121.

[0032] The rotating body 122 is provided with a lumen for accommodating the tube body. The airbag 123 is provided in the lumen for contacting and clamping the tube body. In a specific implementation, the airbag is preferably a ring-shaped airbag. When the airbag 123 is inflated, the airbag 123 contacts the tube body. At this time, the tube body is clamped and fixed in the lumen, and the rotating body 122 can drive the tube body to rotate together. When the airbag 123 is deflated and contracted, the airbag 123 and the tube body are separated, and at this time, the tube body can be separated from the lumen.

[0033] In order to realize automatic lifting and lowering control of the tube cover during opening and closing operations and reduce the movement of the clamping cylinder 112, the tube cover clamping and lifting assembly 11 also includes a supporting block 113 arranged on the clamping cylinder 112, and the first clamping jaw 111 can be vertically slidably connected to the supporting block 113 by a connection method such as a telescopic rod, and a compression spring 1131 is arranged at the vertical sliding connection.

[0034] The process of opening and closing the cover is as follows: when opening the cover, the clamping cylinder 112 drives the first clamping jaw 111 to move downward and clamp the tube cover, and at the same time inflates the airbag 123 to clamp and fix the tube body, then the rotating body 122 rotates, and the tube cover drives the first clamping jaw 111 to press the compression spring 1131 upward under the action of the thread drive, and when the tube body and the tube cover are completely separated, the clamping cylinder 112 drives the first clamping jaw 111 to move upward, and the opening operation is completed; When closing the cover, the clamping cylinder 112 drives the first clamping jaw 111 to move downward again and make the tube cover and the tube body conflict with each other, then the rotating body 122 rotates in the opposite direction, and the tube cover is tightened downward and the compression spring 1131 is stretched downward under the action of the threaded drive, and when the tube cover and the tube body are fully matched, the first clamping jaw 111 is separated from the tube cover, and the clamping cylinder 112 drives the first clamping jaw 111 to move upward again and reset, completing the closing operation.

[0035] The capping module 1 further includes a clearance slide rail 13 and a slide rail assembly 14. The clearance slide rail 13 is disposed below the clamping cylinder 112 and is used to drive the tube cap clamping lifting assembly 11 to slide relatively to the side of the tube body clamping rotating assembly 12 when loading the sample tube, thereby freeing up the space above the tube body clamping rotating assembly 12, so as to facilitate loading the sample tube into the tube cavity.

[0036] The slide rail assembly 14 is disposed below the base plate and is used to drive the tube clamping and rotating assembly 12 to slide to the next station (i.e., the homogenizer adding module 2 and the salt pouring module 3) to perform operations such as adding homogenizers and extracting salts.

[0037] Reference Figure 4-Figure 6 The homogenizer adding module 2 includes a sorting barrel 21, a slanting plate 22, a discharge barrel 23 and a discharge drive assembly. The sorting barrel 21 is used to accommodate homogenizers and is vertically arranged on a base plate and is rotatably connected to the base plate. The discharge drive assembly is used to drive the sorting barrel 21 to rotate along the base plate. A plurality of discharge holes 211 are evenly arranged at the bottom edge of the sorting barrel 21 along its circumferential direction, and each discharge hole 211 can accommodate a homogenizer.

[0038] The inclined plate 22 is arranged in the sorting barrel 21, and an arc groove 221 is arranged on its lower side along its circumferential direction. The arc groove 221 and the barrel wall of the sorting barrel 21 form a material discharge trough, and the material discharge trough is connected with the material discharge hole 211. Under the action of the inclined surface of the inclined plate 22, the homogenizers can automatically enter the material discharge hole 211.

[0039] The discharge barrel 23 is arranged below the substrate and passes through the substrate. During the rotation of the sorting barrel 21, the discharge barrel 23 can be connected with the discharge holes 211 arranged at the bottom of the sorting barrel 21 in sequence, and the homogenizers enter the sample tube through the discharge barrel 23 to realize automatic addition of the homogenizers.

[0040] Reference Figure 7-Figure 9 The salt pouring module 3 includes a balance wheel 31, a swing rod 32, a second clamping jaw 33, a connecting plate 34 and a salt pouring driving assembly. The balance wheel 31 is rotatably connected to the base plate, and the salt pouring driving assembly is used to drive the balance wheel 31 to rotate along the base plate.

[0041] The swing rod 32 is arranged on the other side of the base plate and connected to the balance wheel 31, and rotates along the vertical direction with the balance wheel 31. The second clamping jaw 33 is horizontally arranged at one end of the swing rod 32 away from the balance wheel 31, and is used to clamp the extraction salt tube. When the balance wheel 31 rotates, the swing rod 32 and the second clamping jaw 33 rotate together, and the extraction salt tube clamped by the second clamping jaw 33 performs a flipping and tilting motion, that is, the bottom of the tube flips upward, and the tube mouth flips downward.

[0042] One end of the connecting plate 34 is located on the same side of the substrate as the balance wheel 31, and is vertically slidably connected to the substrate, and a tension spring 341 is provided at the vertical sliding connection, and the tension spring 341 is used to drive the connecting plate 34 to reset; a lever 311 is provided at the edge of the balance wheel 31, and when the balance wheel 31 rotates, the lever 311 can drive the connecting plate 34 to slide vertically downward along the substrate; the other end of the connecting plate 34 extends to the other side of the substrate and is vertically provided with a funnel 342, which is arranged opposite to the second clamp 33 and is used to be inserted into the sample tube when adding extraction salt.

[0043] When adding salt, the uncapped extraction salt tube is loaded into the second clamping jaw 33, and then the salt pouring driving assembly drives the balance wheel 31 to rotate. When the balance wheel 31 rotates, the second clamping jaw 33 drives the extraction salt tube to flip, and at the same time, the funnel 342 slides vertically downward together with the connecting plate 34. When the balance wheel 31 rotates a certain angle, the sample tube is in a downward tilting state and the tube mouth is inserted into the funnel 342. At this time, the funnel 342 is also inserted into the sample tube, and the extraction salt is poured into the sample tube, completing the salt adding action; After the salting is completed, the balance wheel 31 rotates in the opposite direction to return to the initial state. At this time, the second clamping jaw 33 and the funnel 342 also return to the initial state. The connecting plate 34 slides upward and automatically resets under the drive of the tension spring 341 to prepare for the next salting.

[0044] In order to prevent the extracted salt from adhering to the wall of the extracted salt pipe or the inner wall of the funnel 342 during the salt addition process, a vibration motor 35 is provided on the swing rod 32 and the connecting plate 34. At the same time, in order to prevent the extracted salt from overflowing into the environment due to vibration during the salt addition process, an arc-shaped baffle 3421 is also provided on the top of the funnel 342 along its circumferential direction.

[0045] Reference Figure 1 The sample adding module further includes a plurality of liquid adding tubes 4, which can be evenly arranged along the circumferential direction of the lower barrel 23 or the funnel 342, so that the extraction liquid can be added simultaneously when the homogenizer or extraction salt is added, effectively improving the addition efficiency of the extraction material. At the same time, in order to facilitate the liquid adding tube 4 to discharge air or perform self-cleaning, a waste liquid recovery cylinder 141 is also provided on the slide rail assembly 14.

[0046] It should be noted that: in the specific implementation process of the present application, the homogenizer addition module 2 and the salt pouring module 3 can be set at the same time according to the requirements of the specific experiment, or only one of the homogenizer addition module 2 or the salt pouring module 3 can be set; In the specific implementation of the present application, in order to improve experimental efficiency or adapt to related experiments, the number of capping modules 1, homogenizer adding modules 2 and salt pouring modules 3 can be relatively increased or decreased.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sample adding device, characterized in that: include, A cap screwing module (1), a pipe cap clamping and lifting assembly (11) for grabbing and lifting the pipe cap, a pipe body clamping and rotating assembly (12) for clamping and rotating the pipe body, and a slide rail assembly (14) capable of transporting the pipe body clamping and rotating assembly (12) to the next workstation; A homogenizer adding module (2) is used to add homogenizers into the sample tube transmitted by the tube body clamping rotating assembly (12); and / or a salt pouring module (3), used for adding extraction salt into the sample tube transmitted by the tube body clamping rotating assembly (12).

2. A sample adding device according to claim 1, characterized in that: The pipe cover clamping and lifting assembly (11) comprises: A first clamping claw (111), used for clamping the tube cover; The clamping cylinder (112) is used to drive the first clamping jaw (111) to rise and fall vertically.

3. A sample adding device according to claim 2, characterized in that: Also includes, A bearing block (113) is arranged on the top of the clamping cylinder (112), the first clamping jaw (111) is vertically slidably connected to the bearing block (113), and a compression spring (1131) is arranged at the vertical sliding connection.

4. A sample adding device according to claim 2 or 3, characterized in that: Also includes, The yielding slide rail (13) is arranged below the clamping cylinder (112) and is used to drive the clamping cylinder (112) to slide horizontally.

5. A sample adding device according to claim 1, characterized in that: The tube body clamping and rotating assembly (12) comprises: A sleeve (121) is disposed on the base plate; A rotating body (122) is disposed inside the sleeve (121) and is rotatably connected thereto, and is provided with a lumen for accommodating the tube body; The airbag (123) is arranged in the tubular cavity and is used to abut against and clamp the tubular body. When the airbag (123) expands, the airbag (123) abuts against the tubular body, and the tubular body is clamped and fixed in the tubular cavity; when the airbag (123) contracts, the airbag (123) and the tubular body are separated, and the tubular body can be separated from the tubular cavity; And a rotation driving assembly, used for driving the rotating body (122) to rotate along the sleeve (121).

6. A sample adding device according to claim 1, characterized in that: The homogenizer adding module (2) comprises: A sorting cylinder (21) is rotatably connected to the base plate, and a plurality of discharge holes (211) are evenly arranged at the bottom edge along the circumferential direction thereof; A slanted plate (22) is arranged in the sorting barrel (21), and an arc-shaped groove (221) is arranged on a lower side along its circumferential direction, wherein the arc-shaped groove (221) and the barrel wall of the sorting barrel (21) form a material discharge trough connected to the material discharge hole (211); A material discharge cylinder (23), which is disposed below the base plate and can be connected to the material discharge hole (211); And a material discharge driving assembly is used for driving the sorting cylinder (21) to rotate along the base plate, and during the rotation process, the material discharge cylinder (23) can be sequentially connected with the material discharge hole (211).

7. A sample adding device according to claim 1, characterized in that: The salt pouring module (3) comprises: A balance wheel (31) is rotatably connected to the base plate and is provided with a lever (311); A pendulum rod (32) is arranged on the other side of the base plate and rotates along with the pendulum wheel (31) in the vertical direction; A second clamping jaw (33) is horizontally arranged at one end of the swing rod (32) away from the balance wheel (31), and is used to clamp the test tube; and when the balance wheel (31) rotates, the second clamping jaw (33) drives the tube body to perform a flipping and tilting movement; A connecting plate (34), one end of which is located on a side of the base plate on which the balance wheel (31) is arranged and is vertically slidably connected to the base plate, a tension spring (341) is arranged at the sliding connection, and when the balance wheel (31) rotates, the lever (311) can drive the connecting plate (34) to slide vertically downward along the base plate; The other end extends to the other side of the base plate and is vertically provided with a funnel (342). The funnel (342) is arranged relative to the second clamping jaw (33). When the balance wheel (31) rotates, the second clamping jaw (33) drives the tube body to flip, and the funnel (342) moves vertically downward along with the connecting plate (34). When the balance wheel (31) rotates a certain angle, the tube body mouth is inserted into the funnel (342).

8. A sample adding device according to claim 7, characterized in that: The top of the funnel (342) is also provided with an arc-shaped baffle (3421).

9. A sample adding device according to claim 7 or 8, characterized in that: A vibration motor (35) is provided on the swing rod (32) and / or the connecting plate (34).

10. A sample adding device according to claim 1, characterized in that: It also includes a plurality of liquid adding tubes (4).

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