CN211501481U

CN211501481U - Fixing device of full-automatic nucleic acid extraction appearance

Info

Publication number: CN211501481U
Application number: CN202020059555.4U
Authority: CN
Inventors: 车万里; 朱瑞杰; 郑统宁
Original assignee: Beijing Aberdeen Biotechnology Co ltd
Current assignee: Beijing Aberdeen Biotechnology Co ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-09-15
Anticipated expiration: 2030-01-10

Abstract

The utility model relates to a fixing device of full-automatic nucleic acid extraction appearance, it includes the extraction appearance body, the downside of extraction appearance body is provided with PMKD, be provided with the damping pad between the lower lateral wall of PMKD and extraction appearance body, set up the constant head tank that holds the extraction appearance body on the damping pad, be provided with fixed curb plate on the relative avris of PMKD respectively perpendicularly, swing joint has respectively between two fixed curb plate relative lateral walls and can paste the locating plate that leans on extraction appearance body lateral wall, fixed curb plate is provided with two sets of telescopic machanisms that the locating plate kept away from fixed curb plate towards one side of locating plate. The utility model has the advantages that: reduce the influence of desktop vibrations to full-automatic nucleic acid extraction appearance.

Description

Fixing device of full-automatic nucleic acid extraction appearance

Technical Field

The utility model belongs to the technical field of the technique of medical equipment manufacturing and specifically relates to a fixing device of full-automatic nucleic acid extraction appearance is related to.

Background

Nucleic acids are biomacromolecules synthesized by the polymerization of many nucleotides, and are one of the most basic substances of life. Nucleic acid is widely present in all animal and plant cells and microorganisms, and nucleic acid in organisms is often combined with protein to form nucleoprotein. With the rapid development of molecular biology in recent years, nucleic acid-based molecular diagnostic and detection techniques have increasingly highlighted important roles in a variety of fields.

The nucleic acid extractor is an instrument which automatically finishes the extraction work of sample nucleic acid by using a matched nucleic acid extraction reagent, is an indispensable instrument for the separation and purification work related to biomolecules in each laboratory, and is divided into two types, one type is large-scale automation and is generally called as an automatic liquid workstation; the other type is a small automatic nucleic acid extractor which automatically finishes the extraction and purification process by using a packaged matched reagent. The large automatic liquid workstation is high in equipment cost and operation cost, and is suitable for extracting thousands of samples of the same kind at a time, so that the application rate is reduced; and small-sized automatic instruments are more and more applied because of low instrument equipment and operation cost and convenient operation.

The existing full-automatic nucleic acid extractor is directly placed on a desktop when in use, and the desktop vibrates to influence the stability of the nucleic acid extractor to be solved.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, one of the purposes of the utility model is to provide a fixing device of full-automatic nucleic acid extraction appearance, its advantage is: reduce the influence of desktop vibrations to full-automatic nucleic acid extraction appearance.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a fixing device of full-automatic nucleic acid extraction appearance, includes the extraction appearance body, the downside of extraction appearance body is provided with PMKD, be provided with the damping pad between the lower lateral wall of PMKD and extraction appearance body, set up the constant head tank that holds the extraction appearance body on the damping pad, be provided with fixed curb plate on the relative avris of PMKD respectively perpendicularly, swing joint has respectively between two fixed curb plate relative lateral walls can paste the locating plate that leans on extraction appearance body lateral wall, fixed curb plate is provided with two sets of backs towards one side of locating plate and holds the telescopic machanism that the locating plate kept away from fixed curb plate.

Through adopting above-mentioned technical scheme, the staff is when will drawing the appearance body and place on this fixing device, the quick bottom that will draw the appearance body of accessible constant head tank is placed in the shock pad, make and draw the appearance body to be located between two locating plates, the lateral wall that holds the locating plate orientation and draw the appearance body through the telescopic machanism top between locating plate and the fixed curb plate afterwards removes, make mutually supporting of two locating plates will draw the stable shock pad of fixing at PMKD of appearance body, place PMKD on the desktop at last, when the vibrations that the desktop produced transmitted to the shock pad, the shock attenuation through the shock pad absorbs most vibrations, and then reduce the influence of desktop vibrations to drawing the appearance body.

The present invention may be further configured in a preferred embodiment as: the telescopic mechanism comprises two positioning rods arranged on the positioning plate, the end parts of the positioning rods are hinged to the side walls of the positioning plate, and the other ends of the side wall positioning rods of the two positioning rods are provided with driving assemblies for driving the end parts of the two positioning rods to be away from or close to each other.

Through adopting above-mentioned technical scheme, telescopic machanism during operation, the drive assembly of staff accessible locating lever tip, the tip of two locating levers of drive removes in opposite directions for the angle of two locating levers between fixed curb plate and locating plate becomes the vertical state by the slope, thereby makes the locating plate can relatively fixed curb plate to the removal certain distance of extraction appearance body, makes two locating plates can paste and lean on the lateral wall of extraction appearance body, will extract the appearance body then and fix on PMKD.

The present invention may be further configured in a preferred embodiment as: the drive assembly comprises a screw rod horizontally arranged on the fixed side plate, opposite threads are arranged on the screw rod from the middle of the screw rod to the two ends of the screw rod, the screw rod is connected with two sliding blocks in a threaded mode, the two sliding blocks are located on the two opposite threads of the screw rod respectively, and the end portion of the positioning rod is hinged to the side wall of the sliding block, which deviates from the fixed side plate.

Through adopting above-mentioned technical scheme, the drive assembly during operation, the staff accessible rotates the screw rod, because the screw rod begins to be equipped with opposite screw thread from its middle part to its both ends, and threaded connection has two sliders on the screw rod, and two sliders are located two opposite screw threads of screw rod respectively, so the rotation of screw rod can make two sliders move or keep away from each other along the length direction of screw rod to the tip that drives two locating levers is followed two sliders and is close to each other or keeps away from.

The present invention may be further configured in a preferred embodiment as: the both ends of screw rod respectively are provided with an otic placode perpendicularly, the otic placode sets up with fixed curb plate is perpendicular, and the lateral wall fixed connection of the lateral wall of otic placode and fixed curb plate, the lateral wall that the tip of screw rod passed the otic placode is provided with the rotary disk that the staff of being convenient for rotated the screw rod perpendicularly.

Through adopting above-mentioned technical scheme, can connect the stable rotation of screw rod on the lateral wall of fixed curb plate, and the convenient rotation screw rod of staff's accessible rotary disk reduces staff's intensity of labour then, promotes work efficiency.

The present invention may be further configured in a preferred embodiment as: and a connecting rod for connecting the two screw rods with each other is arranged between the opposite end parts of the two screw rods, and the connecting rod is respectively and coaxially and fixedly connected with the two screw rods.

Through adopting above-mentioned technical scheme, when the staff rotated this screw rod through the rotary disk of one of them screw rod tip, the rotation of one side screw rod can drive the screw rod of opposite side through the connecting rod and rotate to the lateral wall that orientation that makes the lateral wall of locating plate can be stable draws the appearance body removes.

The present invention may be further configured in a preferred embodiment as: and a rubber pad is arranged between the opposite side walls of the two positioning plates.

Through adopting above-mentioned technical scheme, the setting of rubber pad can reduce the rigid contact of locating plate and extraction appearance body to reduce the damage of locating plate to the extraction appearance body.

The present invention may be further configured in a preferred embodiment as: the rubber pad is provided with anti-skid lines.

Through adopting above-mentioned technical scheme, the frictional resistance between rubber pad and the extraction appearance body can be strengthened to the setting of antiskid line to make the locating plate more stable to the fixed of extraction appearance body.

The present invention may be further configured in a preferred embodiment as: four end angles of PMKD downside respectively are provided with a fixed damper, fixed damper includes the sleeve of setting perpendicularly on PMKD, the support column has been cup jointed in the sleeve, be provided with damping spring between support column and the PMKD, damping spring cup joints in the sleeve, the one end that the support column deviates from PMKD is provided with the suction cup.

Through adopting above-mentioned technical scheme, staff's accessible PMKD downside adsorbs PMKD on the last lateral wall of desktop, and then reduces PMKD relative desktop removal's possibility to will draw stable the fixing on the desktop of appearance body. Simultaneously, the vibrations that the desktop produced can be at first transmitted damping spring to reduce the transmission of desktop vibrations to PMKD, then strengthen PMKD's damping performance.

The present invention may be further configured in a preferred embodiment as: the support column has the turn-ups towards the telescopic tip in to telescopic lateral wall extension, the sleeve deviates from the tip inboard of PMKD and is provided with the spacing ring of mutually supporting with the turn-ups.

Through adopting above-mentioned technical scheme, the turn-ups is mutually supported with the spacing ring to with the stable restriction of support column in the sleeve, reinforcing support column and telescopic stability of being connected strengthen fixing device's stability in use and practicality then.

To sum up, the utility model discloses a following beneficial technological effect of fixing device of full-automatic nucleic acid extraction appearance of at least one:

1. the vibration generated by the desktop is transmitted to the damping spring firstly, so that the transmission of the desktop vibration to the fixed bottom plate is reduced, and meanwhile, when the vibration generated by the desktop is transmitted to the damping pad, most of the vibration is absorbed through the damping of the damping pad, so that the influence of the desktop vibration on the extraction instrument body is reduced;

2. the fixed bottom plate can be adsorbed on the upper side wall of the desktop through the negative pressure sucker on the lower side of the fixed bottom plate by a worker, so that the possibility that the fixed bottom plate moves relative to the desktop is reduced, and the extraction instrument body is stably fixed on the desktop;

3. the turn-ups is mutually supported with the spacing ring to with the stable restriction of support column in the sleeve, reinforcing support column and telescopic stability of being connected strengthen fixing device's stability in use and practicality then.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic plan view showing the telescopic mechanism.

FIG. 3 is a partial structural cross-sectional view embodying a fixed shock absorbing assembly.

In the figure, 1, an extraction instrument body; 2. fixing the bottom plate; 21. a vibration damping pad; 211. positioning a groove; 22. fixing the side plate; 23. positioning a plate; 231. a rubber pad; 2311. anti-skid lines; 3. a telescoping mechanism; 31. positioning a rod; 32. a drive assembly; 321. a screw; 322. an ear plate; 323. a connecting rod; 324. rotating the disc; 325. a slider; 4. fixing the damping component; 41. a sleeve; 411. a limiting ring; 42. a support pillar; 421. flanging; 43. a damping spring; 44. and a negative pressure sucker.

Detailed Description

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

Referring to fig. 1 and 2, the fixing device for a full-automatic nucleic acid extractor disclosed by the present invention comprises an extractor body 1, wherein a fixed bottom plate 2 is detachably connected to the lower side of the extractor body 1, a vibration damping pad 21 is arranged between the fixed bottom plate 2 and the lower side wall of the extractor body 1, the bottom of the vibration damping pad is mutually bonded with the upper side wall of the fixed bottom plate 2, and a positioning groove 211 for accommodating the extractor body 1 is arranged on the vibration damping pad; fixed curb plate 22 is connected with on the relative avris of PMKD 2 respectively perpendicularly, the diapire of fixed curb plate 22 and PMKD 2's last lateral wall fixed connection, swing joint has the locating plate 23 that can paste on the lateral wall of extraction appearance body 1 between two fixed curb plate 22 relative lateral walls respectively, it has rubber pad 231 to fix bonding between two locating plate 23 relative lateral walls, the cross-sectional dimension looks adaptation of rubber pad 231 and locating plate 23, and seted up anti-skidding line 2311 on the lateral wall that deviates from locating plate 23 at rubber pad 231, thereby strengthen the frictional resistance between rubber pad 231 and the extraction appearance body 1, thereby make locating plate 23 more stable to the fixed of extraction appearance body 1, fixed curb plate 22 is provided with two sets of tops towards one side of locating plate 23 and holds locating plate 23 and keeps away from telescopic machanism 3 of.

As shown in fig. 1 and 2, the two sets of telescoping mechanisms 3 are located on the same horizontal plane and are respectively located on two sides of the fixed side plate 22 and the side wall; the telescopic mechanism 3 comprises two positioning rods 31 horizontally arranged on the positioning plate 23, the end parts of the positioning rods 31 are hinged with the side walls of the positioning plate 23, in the embodiment, the hinged points of the two positioning rods 31 and the positioning plate 23 are close to each other and positioned on the same horizontal plane, and the other ends of the side wall positioning rods 31 of the two positioning rods 31 are provided with driving assemblies 32 for driving the end parts of the two positioning rods 31 to be away from or close to each other; the driving assembly 32 comprises a screw 321 horizontally arranged on the fixed side plate 22, the screw 321 is parallel to the fixed side plate 22 and is located on the same horizontal plane with the two positioning rods 31, two ends of the screw 321 are respectively and vertically provided with an ear plate 322, the screw 321 is rotationally connected with the ear plates 322 through bearings, the ear plates 322 are vertically arranged with the fixed side plate 22, and the side walls of the ear plates 322 are fixedly connected with the side walls of the fixed side plate 22; a connecting rod 323 for connecting the two screw rods 321 is arranged between the opposite end parts of the two screw rods 321, and two ends of the connecting rod 323 respectively penetrate through the side walls of the lug plates 322 and are coaxially and fixedly connected with the two screw rods 321, so that when a worker rotates the screw rods 321 through the rotating disc 324 at the end part of one of the screw rods 321, the rotation of the screw rods 321 can drive the screw rod 321 at the other side to rotate through the connecting rod 323, and linkage is generated; the end parts of the two screws 321 far away from each other penetrate through the side wall of the ear plate 322 and are vertically provided with a rotating disk 324 which is convenient for a worker to rotate the screws 321, opposite threads are arranged from the middle part of the screws 321 to the two ends of the screws 321, two sliding blocks 325 are connected to the screws 321 in a threaded mode, the two sliding blocks 325 are respectively located on the two opposite threads of the screws 321, and the end parts of the positioning rods 31 are hinged to the side wall of the sliding blocks 325 far away from the fixed side plate.

When the telescopic mechanism 3 works, the drive assembly 32 of staff accessible locating lever 31 tip, the accessible rotates screw rod 321, make two sliders 325 move or keep away from each other along the length direction of screw rod 321, thereby the tip that drives two locating levers 31 is followed two sliders 325 and is close to each other or keep away from, the tip of driving two locating levers 31 moves in opposite directions, make the angle of two locating levers 31 between fixed curb plate 22 and locating plate 23 change each other between slope and vertical state, thereby make locating plate 23 can fixed curb plate 22 remove or keep away from the certain distance to drawing appearance body 1 relatively, make two locating plates 23 can paste and lean on the lateral wall of drawing appearance body 1, then will draw appearance body 1 to fix on PMKD 2.

As shown in fig. 1 and 3, four end corners of the lower side of the fixed bottom plate 2 are respectively provided with a fixed damping component 4, and four groups of damping components are arranged in a rectangular array; the fixed damping component 4 comprises a sleeve 41 vertically arranged on the fixed bottom plate 2, and the upper end part of the sleeve 41 is fixedly connected with the lower side wall of the fixed floor; the supporting column 42 is sleeved in the sleeve 41, the inner side of the end part of the sleeve 41, which is far away from the fixed bottom plate 2, is provided with the limiting ring 411, the limiting ring 411 is arranged in parallel with the horizontal plane, the inner diameter of the limiting ring 411 is matched with the circumference of the supporting column 42, and a flange 421 which can be matched with the limiting ring 411 extends from the end part of the supporting column 42, which faces the sleeve 41, to the side wall of the sleeve 41, so that the possibility that the supporting column 42 slips off the sleeve 41 is reduced, and the connection stability of the supporting column 42 and; a damping spring 43 is arranged between the upper end of the supporting column 42 and the bottom wall of the fixed bottom plate 2, the damping spring is sleeved in the sleeve 41, and the upper end and the lower end of the damping spring respectively abut against the side walls of the fixed bottom plate 2 and the supporting column 42; the end of the supporting column 42 facing away from the fixed base plate 2 is vertically provided with a negative pressure suction cup 44. Staff's accessible PMKD 2 downside negative pressure sucking disc 44 adsorbs PMKD 2 on the last lateral wall of desktop, and then reduces the relative desktop possibility of removal of PMKD 2 to will draw stable the fixing on the desktop of appearance body 1. Simultaneously, the vibrations that the desktop produced can be transmitted damping spring at first to reduce the transmission of desktop vibrations to PMKD 2, strengthen PMKD 2's damping performance then.

The implementation principle of the embodiment is as follows: when the worker places the extractor body 1 on the fixing device, the bottom of the extractor body 1 can be quickly placed in the shock pad through the positioning groove 211, so that the extractor body 1 is positioned between the two positioning plates 23, then the positioning plates 23 are jacked to move towards the side wall of the extractor body 1 through the telescopic mechanisms 3 between the positioning plates 23 and the fixed side plates 22, so that the two positioning plates 23 are matched with each other to stably fix the extraction instrument body 1 on the damping pad of the fixed bottom plate 2, and finally, the damping bottom plate is placed on a table top, the vibration generated by the table top is firstly transmitted to the damping spring, thereby reducing the transmission of the table top vibration to the fixed bottom plate 2, and simultaneously, when the vibration generated by the table top is transmitted to the shock pad, most vibrations are absorbed through the shock attenuation of shock pad, and then reduce the influence of desktop vibrations to extraction appearance body 1.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a fixing device of full-automatic nucleic acid extraction appearance, includes and draws appearance body (1), its characterized in that: draw the downside of appearance body (1) to be provided with PMKD (2), PMKD (2) and draw and be provided with damping pad (21) between the lower lateral wall of appearance body (1), set up constant head tank (211) that hold and draw appearance body (1) on damping pad (21), be provided with fixed curb plate (22) on the relative avris of PMKD (2) respectively perpendicularly, between two fixed curb plate (22) relative lateral wall respectively swing joint have can paste locating plate (23) of leaning on drawing appearance body (1) lateral wall, fixed curb plate (22) are provided with telescopic machanism (3) that fixed curb plate (22) were kept away from to two sets of tops holding locating plate (23) towards one side of locating plate (23).

2. The fixing device of the full-automatic nucleic acid extractor according to claim 1, wherein: the telescopic mechanism (3) comprises two positioning rods (31) arranged on the positioning plate (23), the end parts of the positioning rods (31) are hinged to the side walls of the positioning plate (23), and driving assemblies (32) for driving the end parts of the two positioning rods (31) to be away from or close to each other are arranged at the other ends of the side wall positioning rods (31) of the two positioning rods (31).

3. The fixing device of the full-automatic nucleic acid extractor according to claim 2, wherein: drive assembly (32) are including level setting screw rod (321) on fixed curb plate (22), screw rod (321) begin to be equipped with opposite screw thread from its middle part to its both ends, and threaded connection has two slider (325) on screw rod (321), and two slider (325) are located two opposite screw threads of screw rod (321) respectively, the tip of locating lever (31) is articulated with the lateral wall that slider (325) deviates from fixed curb plate (22).

4. The fixing device of the full-automatic nucleic acid extractor according to claim 3, wherein: the both ends of screw rod (321) respectively are provided with otic placode (322) perpendicularly, otic placode (322) set up with fixed curb plate (22) are perpendicular, and the lateral wall fixed connection of the lateral wall of otic placode (322) and fixed curb plate (22), the lateral wall that the tip of screw rod (321) passed otic placode (322) is provided with rotary disk (324) of being convenient for the staff to rotate screw rod (321) perpendicularly.

5. The fixing device of the full-automatic nucleic acid extractor according to claim 4, wherein: and a connecting rod (323) for connecting the two screw rods (321) with each other is arranged between the opposite end parts of the two screw rods (321), and the connecting rod (323) is coaxially and fixedly connected with the two screw rods (321) respectively.

6. The fixing device of the full-automatic nucleic acid extractor according to claim 1, wherein: rubber pads (231) are arranged between the opposite side walls of the two positioning plates (23).

7. The fixing device of the full-automatic nucleic acid extractor according to claim 6, wherein: the rubber pad (231) is provided with anti-skid grains (2311).

8. The fixing device of the full-automatic nucleic acid extractor according to claim 1, wherein: four end angles departments of PMKD (2) downside respectively are provided with a fixed damper assembly (4), fixed damper assembly (4) are including setting up sleeve (41) on PMKD (2) perpendicularly, support column (42) have been cup jointed in sleeve (41), be provided with damping spring (43) between support column (42) and PMKD (2), damping spring cup joints in sleeve (41), the one end that support column (42) deviate from PMKD (2) is provided with negative sucker (44).

9. The fixing device of the full-automatic nucleic acid extractor according to claim 8, wherein: support column (42) have turn-ups (421) towards the tip in sleeve (41) to the lateral wall extension of sleeve (41), sleeve (41) deviate from the tip inboard of PMKD (2) and are provided with spacing ring (411) of mutually supporting with turn-ups (421).