CN218404268U

CN218404268U - Calibrating device for nucleic acid extractor

Info

Publication number: CN218404268U
Application number: CN202222445586.5U
Authority: CN
Inventors: 丁应; 王宁; 倪才胜
Original assignee: Henan Zhonglian Testing Technology Co ltd
Current assignee: Henan Zhonglian Testing Technology Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-01-31
Anticipated expiration: 2032-09-15

Abstract

The utility model relates to the technical field of nucleic acid extraction instruments, in particular to a calibration device of a nucleic acid extraction instrument, which comprises a guide assembly, wherein the guide assembly is arranged below a magnetic rod rack in an instrument main body, the guide assembly comprises a guide post, the bottom of the guide post is connected with a limiting plate, the bottom of the limiting plate is connected with a guide frame, and the outer wall of the guide frame is connected with a guide roller; the supporting component, the supporting component sets up the below at the direction subassembly, the supporting component includes the test-tube rack, the outer wall connection of test-tube rack has the support frame, the inside of locating plate is pegged graft and is had test tube main body. The utility model discloses can realize the accurate calibration to magnetic rod and test tube when using, guarantee both accurate nature and the stability of pegging graft to can effectually avoid the magnetic rod the deviation of pegging graft to appear, improve the result of use of device, avoid appearing the grafting error, lead to the device to appear the loss.

Description

Calibrating device for nucleic acid extractor

Technical Field

The utility model relates to a nucleic acid extraction appearance technical field specifically is nucleic acid extraction appearance calibrating device.

Background

The nucleic acid extractor is an instrument for automatically finishing the extraction work of sample nucleic acid by using a matched nucleic acid extraction reagent, and is widely applied to various fields of disease control centers, clinical disease diagnosis, blood transfusion safety, forensic medicine identification, environmental microorganism detection, food safety detection, animal husbandry, molecular biology research and the like.

Nucleic acid extraction appearance needs to plug in the inside to the below test tube with the magnetic rod of top when using, realizes drawing the detection of liquid, thereby need to guarantee that the below test tube carries out accurate grafting with the magnetic rod of top, but current device can't carry out calibration when using, thereby make the device when using, because of the deviation etc. of placing of test-tube rack easily, lead to the unable accurate grafting of magnetic rod, thereby influence the normal use of device, consequently need to design nucleic acid extraction appearance calibrating device to solve above-mentioned problem urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a nucleic acid extraction appearance calibrating device to current device that proposes in solving above-mentioned background art can't carry out calibration when using and handles, thereby makes the device when using, because of placing the deviation etc. of test-tube rack easily, leads to the unable accurate grafting of magnetic rod, thereby influences the problem of the normal use of device.

In order to achieve the above purpose, the utility model provides a following technical scheme: nucleic acid extractor calibrating device includes:

the guide assembly is arranged below the magnetic rod rack in the instrument main body and comprises a guide post, the bottom of the guide post is connected with a limiting plate, the bottom of the limiting plate is connected with a guide frame, and the outer wall of the guide frame is connected with a guide roller;

the supporting component is arranged below the guiding component and comprises a bottom plate, a rolling ball is arranged inside the bottom plate, a clamping plate is arranged above the bottom plate, a limiting frame is arranged on the upper surface of the clamping plate, a movable plate is arranged above the rolling ball, a test tube rack is arranged on the upper surface of the movable plate, a positioning plate is arranged inside the test tube rack, a supporting frame is connected to the outer wall of the test tube rack, and a test tube main body is inserted into the positioning plate.

Preferably, the instrument main part includes the host computer, the outer wall connection of host computer has the controller, the front of host computer is provided with the protection casing, the work end connection of host computer is connected with magnetic frame and bar magnet frame respectively, the inside of magnetic frame is provided with the magnetic rod, the inside of magnetic rod frame is provided with the magnetic rod cover.

Preferably, the bar magnet is in same axis with the bar magnet cover, the magnetic frame is in the positive center of bottom plate with the bar magnet frame, the guiding hole has been seted up in four corners of bar magnet frame, and the inside sliding connection of guiding hole has the guide post.

Preferably, the top of guide post is provided with the spacing ring, and the diameter of spacing ring is greater than the diameter of guide post, the spring has been cup jointed to the outside of guide post, the spring is in between guide post and the limiting plate.

Preferably, the leading truck is the toper structure, the minimum diameter of leading truck is greater than the internal diameter of limiting plate, the guide roll is provided with four groups altogether, every group the guide roll all is provided with two, four groups the guide roll evenly distributed is at the four sides of leading truck.

Preferably, the circular groove has been seted up to the upper surface of bottom plate, and the inside rotation of circular groove is connected with the spin, the thickness of cardboard is less than the thickness of bottom plate, the top of spin runs through to the top of cardboard, spacing frame slides and places in the top of spin, the support frame is the toper structure, the top of test-tube rack is provided with the backup pad, and the highest height that highly is less than the support frame of backup pad.

Compared with the prior art, the beneficial effects of the utility model are that: this nucleic acid extraction appearance calibrating device can realize guaranteeing both accurate nature and the stability of pegging graft to the accurate calibration of magnetic rod and test tube when using to can effectually avoid the magnetic rod to appear the deviation of pegging graft, improve the result of use of device, avoid appearing the grafting error, lead to the device to appear the loss.

(1) The utility model discloses a setting of direction subassembly can make the magnetic force stick move down the time, at first the support frame mutual contact of guide roll and below through the leading truck surface to the extrusion of support frame is realized through moving down of leading truck, and then drives the support frame and carry out the position and remove, thereby realizes the holistic removal of below test-tube rack, and then has guaranteed the accurate butt joint of test tube with the magnetic force stick, has improved the availability factor of device, need not to calibrate the test-tube clamp before using and fix a position, has improved device efficiency.

(2) The utility model discloses a setting of spin can realize the bulk movement of top test-tube rack to can make things convenient for the position of test-tube rack to remove, reduce its removal friction, make the calibration of device more accurate convenient.

Drawings

FIG. 1 is a schematic view of the overall structure of the device of the present invention;

FIG. 2 is a schematic view of the distribution structure of the guiding assembly of the present invention;

fig. 3 is a schematic view of the connection structure of the guiding component of the present invention;

fig. 4 is an exploded view of the support assembly of the present invention.

In the figure: 1. an instrument body; 11. a host; 12. a controller; 13. a protective cover; 14. a magnetic frame; 15. a magnetic bar; 16. a magnetic rod rack; 17. a magnetic rod sleeve; 2. a guide assembly; 21. a guide post; 22. a spring; 23. a limiting plate; 24. a guide frame; 25. a guide roller; 3. a support assembly; 31. a base plate; 32. rolling a ball; 33. clamping a plate; 34. a limiting frame; 35. moving the plate; 36. a test tube rack; 37. positioning a plate; 38. a support frame; 4. a test tube body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: nucleic acid extractor calibration device includes: the instrument body 1 and the test tube body 4 used in the present application are commercially available products, and the principle and connection method thereof are well known in the art, so that they will not be described herein,

the guide assembly 2 is arranged below the magnetic rod rack 16 in the instrument main body 1, the guide assembly 2 comprises a guide column 21, the bottom of the guide column 21 is connected with a limiting plate 23, the bottom of the limiting plate 23 is connected with a guide frame 24, the outer wall of the guide frame 24 is connected with a guide roller 25, and through the arrangement of the structure, the guide assembly can be matched with a support frame 38 for extrusion adjustment, so that the position adjustment of the support frame 38 is realized, and the accurate butt joint of the lower test tube main body 4 with the magnetic rod sleeve 17 and the magnetic rod 15 can be further ensured;

supporting component 3, supporting component 3 sets up the below at direction subassembly 2, supporting component 3 includes bottom plate 31, the inside of bottom plate 31 is provided with spin 32, the top of bottom plate 31 is provided with cardboard 33, the upper surface of cardboard 33 is provided with spacing frame 34, spin 32's top is provided with movable plate 35, the upper surface of movable plate 35 is provided with test-tube rack 36, test-tube rack 36's inside is provided with locating plate 37, test-tube rack 36's outer wall connection has support frame 38, the inside grafting of locating plate 37 has test tube main part 4, setting through this structure, can cooperate direction subassembly 2 to use, thereby the stability of device use has been improved, magnetic rod 15 and magnetic rod cover 17 have been guaranteed to the calibration grafting of test tube main part 4, the convenience of device use has been improved.

Further, the instrument main body 1 comprises a main machine 11, a controller 12 is connected to the outer wall of the main machine 11, a protective cover 13 is arranged on the front face of the main machine 11, a magnetic frame 14 and a magnetic bar frame 16 are respectively connected to the working end of the main machine 11, a magnetic bar 15 is arranged inside the magnetic frame 14, a magnetic bar sleeve 17 is arranged inside the magnetic bar frame 16, and the detection instrument main body 1 is of the structure and used for detecting and extracting nucleic acid.

Further, magnetic rod 15 and magnetic rod cover 17 are in same axis, magnetic frame 14 and magnetic rod frame 16 are in the positive center of bottom plate 31, the guiding hole has been seted up at four corners of magnetic rod frame 16, and the inside sliding connection of guiding hole has guide post 21, through the plug-in connection of magnetic rod frame 16 and guide post 21, can realize the supplementary installation to guide assembly 2, simultaneously through its slip grafting, can realize thereby the decline of magnetic rod cover 17 is realized to limiting

plate

23 and 36 mutual butts backs of test-tube rack, thereby the decline of magnetic rod cover 16 is realized.

Further, the top of guide post 21 is provided with the spacing ring, and the diameter of spacing ring is greater than the diameter of guide post 21 for the supplementary spacing of guide post 21, spring 22 has been cup jointed to the outside of guide post 21, and spring 22 is located between guide post 21 and limiting plate 23, and spring 22's setting can be Arabic just the elastic control between guide post 21 and the limiting plate 23, guarantees the extrusion of limiting plate 23 to support frame 38.

Furthermore, leading truck 24 is the toper structure, and the minimum diameter of leading truck 24 is greater than the internal diameter of limiting plate 23, and guide roll 25 is provided with four groups altogether, and every group guide roll 25 all is provided with two, and four groups guide roll 25 evenly distributed are at the four sides of leading truck 24, through the contact of guide roll 25 with support frame 38, realize supplementary calibration, and simultaneously, the rotation setting of guide roll 25 can reduce the frictional force to support frame 38 contact.

Further, the circular recess has been seted up to bottom plate 31's upper surface, and the inside of circular recess rotates and is connected with spin 32, the thickness of cardboard 33 is less than bottom plate 31's thickness, spin 32's top is run through to cardboard 33's top, spacing frame 34 slides and places in spin 32's top, support frame 38 is the toper structure, test-tube rack 36's top is provided with the backup pad, and the highest height that highly is less than support frame 38 of backup pad, setting through spin 32, can realize the universal removal of top movable plate 35, the frictional force that movable plate 35 removed has been reduced, the supplementary calibration of device has further been made things convenient for, thereby the convenience of use of device has been improved.

The working principle is as follows: the utility model discloses when using, at first peg graft test tube main body 4 in the inside of locating plate 37, further place movable plate 35 and top part in spin 32's top, further play the device, decline through bar magnet frame 16, can take limiting plate 23 to descend, limiting plate 23 descends, can drive leading truck 24 and guide roll 25 when descending, realize one side guide roll 25 and support frame 38's inner wall in contact with each other through its decline, and along with descending, can realize the extrusion to support frame 38, thereby realize the removal of support frame 38, and then drive the test-tube rack 36 and remove, when four group's guide roll 25 and support frame 38 contact, realize its accurate location through limiting plate 23 and the contact of test-tube rack 36, and then can realize the accurate grafting of bar magnet cover 17 and magnetic force bar 15 to test tube main body 4.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Nucleic acid extraction appearance calibrating device, its characterized in that includes:

the guide assembly (2) is arranged below the magnetic bar rack (16) in the instrument main body (1), the guide assembly (2) comprises a guide column (21), the bottom of the guide column (21) is connected with a limiting plate (23), the bottom of the limiting plate (23) is connected with a guide frame (24), and the outer wall of the guide frame (24) is connected with a guide roller (25);

supporting component (3), supporting component (3) set up the below in direction subassembly (2), supporting component (3) include bottom plate (31), the inside of bottom plate (31) is provided with spin (32), the top of bottom plate (31) is provided with cardboard (33), the upper surface of cardboard (33) is provided with spacing frame (34), the top of spin (32) is provided with movable plate (35), the upper surface of movable plate (35) is provided with test-tube rack (36), the inside of test-tube rack (36) is provided with locating plate (37), the outer wall connection of test-tube rack (36) has support frame (38), the inside of locating plate (37) is pegged graft and is had test tube main part (4).

2. The nucleic acid extractor calibration device of claim 1, wherein: the instrument main body (1) comprises a main machine (11), the outer wall of the main machine (11) is connected with a controller (12), a protective cover (13) is arranged on the front face of the main machine (11), a magnetic frame (14) and a magnetic bar frame (16) are connected to the working end of the main machine (11) respectively, a magnetic bar (15) is arranged inside the magnetic frame (14), and a magnetic bar sleeve (17) is arranged inside the magnetic bar frame (16).

3. The nucleic acid extractor calibration device of claim 2, wherein: magnetic rod (15) and magnetic rod cover (17) are in same axis, magnetic frame (14) and magnetic rod frame (16) are in the positive center of bottom plate (31), the guiding hole has been seted up in four corners of magnetic rod frame (16), and the inside sliding connection of guiding hole has guide post (21).

4. The nucleic acid extractor calibration device of claim 1, wherein: the top of guide post (21) is provided with the spacing ring, and the diameter of spacing ring is greater than the diameter of guide post (21), spring (22) have been cup jointed to the outside of guide post (21), spring (22) are in between guide post (21) and limiting plate (23).

5. The calibration device for a nucleic acid extractor according to claim 1, wherein: leading truck (24) are the toper structure, the minimum diameter of leading truck (24) is greater than the internal diameter of limiting plate (23), guide roll (25) are provided with four groups altogether, every group guide roll (25) all are provided with two, four groups guide roll (25) evenly distributed is at the four sides of leading truck (24).

6. The nucleic acid extractor calibration device of claim 1, wherein: the circular slot has been seted up to the upper surface of bottom plate (31), and the inside rotation of circular slot is connected with spin (32), the thickness of cardboard (33) is less than the thickness of bottom plate (31), the top of spin (32) is run through to the top of cardboard (33), spacing frame (34) slide and place in the top of spin (32), support frame (38) are the toper structure, the top of test-tube rack (36) is provided with the backup pad, and the highest height that highly is less than support frame (38) of backup pad.