CN220370549U

CN220370549U - Centrifuging tube suction filtration device

Info

Publication number: CN220370549U
Application number: CN202321719258.8U
Authority: CN
Inventors: 张俊; 杨柯
Original assignee: Hubei Jinxing Technology Development Co ltd
Current assignee: Hubei Jinxing Technology Development Co ltd
Priority date: 2023-07-03
Filing date: 2023-07-03
Publication date: 2024-01-23
Anticipated expiration: 2033-07-03

Abstract

The utility model discloses a centrifuge tube suction filtration device, which comprises a connecting seat and a first centrifuge tube arranged on the inner surface of the top end of the connecting seat. This centrifuging tube suction filtration device through setting up limit structure, through putting into the connecting seat respectively first centrifuging tube and second centrifuging tube, later through rotating the control block, thereby make control block cooperation transmission shaft drive transmission gear cooperation two drive gears drive the screw thread connecting rod and rotate, make screw thread connecting rod cooperation drive plate drive connecting plate cooperation limit disk remove at the internal surface of stopper from this, thereby drive the drive lever cooperation drive piece through the connecting block and drive the fixture block and remove when removing, thereby make the fixture block stretch out to the inside of connecting seat, and fix spacingly first centrifuging tube and second centrifuging tube, thereby ensure the stability and the leakproofness of first centrifuging tube of in-process and second centrifuging tube that carry out the suction filtration, thereby improve suction filtration efficiency.

Description

Centrifuging tube suction filtration device

Technical Field

The utility model relates to the technical field of suction filtration, in particular to a centrifugal tube suction filtration device.

Background

The suction filtration refers to a method for reducing the pressure in a suction filtration bottle by using a suction pump so as to achieve the purpose of solid-liquid separation.

The patent document with reference to publication number CN214389075U provides a centrifuging tube suction filtration device, including first centrifuging tube, the second centrifuging tube, the connecting seat, the backup pad, filter membrane and vacuum pump, first centrifuging tube is connected as an organic wholely through connecting seat detachably with the second centrifuging tube, the filter membrane inlays and establishes in the backup pad, be equipped with logical groove in the connecting seat, the backup pad sets up in logical groove, first centrifuging tube and/or second centrifuging tube after the assembly can compress tightly the backup pad, be equipped with air vent and bleed hole on the connecting seat, the air vent communicates in with first centrifuging tube, the bleed hole communicates in with the second centrifuging tube, vacuum pump and bleed hole intercommunication. The utility model adopts the straight-through structure to transfer the sample in the two centrifuge tubes and perform suction filtration at the same time, has the advantages of simple structure, convenient operation and changeable filter membrane, and is especially suitable for suction filtration of a small amount of solution; although the device has more beneficial effects, the following problems still exist: when the first centrifuge tube and the second centrifuge tube are mounted in the connecting seat, the stability of the first centrifuge tube and the second centrifuge tube cannot be ensured, and the structure for fixing the first centrifuge tube and the second centrifuge tube is not provided, so that the sealing effect of the first centrifuge tube and the second centrifuge tube is not ensured, and the phenomenon of air leakage possibly occurs in the process of suction filtration, so that the suction filtration effect is influenced.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a centrifugal tube suction filtration device, which solves the problems of stability and tightness of a first centrifugal tube and a second centrifugal tube during installation and avoids the air leakage phenomenon during the suction filtration process.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a centrifuging tube suction filtration device, includes the connecting seat and sets up the first centrifuging tube at connecting seat top internal surface, the bottom internal surface of connecting seat is equipped with the second centrifuging tube, the inner wall of connecting seat is equipped with the limit structure who fixes first centrifuging tube and second centrifuging tube, limit structure includes two backup pads of fixed connection at the connecting seat inner wall, one side fixed connection stopper of backup pad, and one side of stopper and the inner wall fixed connection of connecting seat, the internal surface slip of stopper is equipped with drive structure, one side fixedly connected with fixture block of drive structure, and the surface of fixture block and the surface contact of first centrifuging tube and second centrifuging tube, two be equipped with the transmission structure that drives drive structure and remove between the opposite side of backup pad.

Preferably, the driving structure comprises a connecting plate which is connected with the inner surface of the limiting block in a sliding way, the inner surface of the connecting plate is rotationally connected with a limiting disc, and the outer surface of the limiting disc is in rolling contact with the inner surface of the limiting block.

Preferably, the front end fixedly connected with connecting block of connecting plate, the front end of connecting block rotates and is connected with the actuating lever, the one end rotation of actuating lever is connected with the drive piece, and one side of drive piece and one side fixed connection of fixture block.

Preferably, the transmission structure comprises a transmission shaft which is rotationally connected to the inner wall of the connecting seat, one end of the transmission shaft penetrates through the outer surface of the connecting seat and is fixedly connected with a control block, the outer surface of the transmission shaft is fixedly connected with a transmission gear, and two sides of the outer surface of the transmission gear are respectively meshed with a driving gear.

Preferably, the inner surface of the driving gear is fixedly connected with a threaded connecting rod, one end of the threaded connecting rod penetrates through the supporting plate and is rotationally connected with the inner wall of the connecting seat, the outer surface of the threaded connecting rod is in threaded connection with a transmission plate, and the rear end of the transmission plate is fixedly connected with the front end of the connecting plate.

Preferably, the inner wall fixedly connected with filter core of connecting seat, the top of filter core is equipped with the filter screen, the top of filter screen is equipped with filter paper, the top of filter paper is equipped with the sealing washer, and the top of sealing washer and the one end contact of first centrifuging tube, the surface of filter core is equipped with the silica gel plug, and the surface of silica gel plug and the internal surface contact of second centrifuging tube.

Advantageous effects

The utility model provides a centrifugal tube suction filtration device. Compared with the prior art, the method has the following beneficial effects:

this centrifuging tube suction filtration device through setting up limit structure, through putting into the connecting seat respectively first centrifuging tube and second centrifuging tube, later through rotating the control block, thereby make control block cooperation transmission shaft drive transmission gear cooperation two drive gears drive the screw thread connecting rod and rotate, make screw thread connecting rod cooperation drive plate drive connecting plate cooperation limit disk remove at the internal surface of stopper from this, thereby drive the drive lever cooperation drive piece through the connecting block and drive the fixture block and remove when removing, thereby make the fixture block stretch out to the inside of connecting seat, and fix spacingly first centrifuging tube and second centrifuging tube, thereby ensure the stability and the leakproofness of first centrifuging tube of in-process and second centrifuging tube that carry out the suction filtration, thereby improve suction filtration efficiency.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an exploded view of the overall structure of the present utility model;

FIG. 3 is a front view of a partial structure of the present utility model;

FIG. 4 is a front view of a spacing structure of the present utility model;

FIG. 5 is a schematic view of a partial structure of the present utility model;

fig. 6 is a front view of the transmission structure of the present utility model.

In the figure: 1. a connecting seat; 2. a first centrifuge tube; 3. a second centrifuge tube; 4. a limit structure; 41. a support plate; 42. a limiting block; 44. a driving structure; 441. a connecting plate; 442. a limiting disc; 443. a connecting block; 444. a driving rod; 445. a driving block; 45. a clamping block; 46. a transmission structure; 461. a transmission shaft; 462. a control block; 463. a transmission gear; 464. a drive gear; 465. a threaded connecting rod; 466. a drive plate; 5. a filter element; 6. a filter screen; 7. a filter paper; 8. a seal ring; 9. a silica gel plug.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

Referring to fig. 1-6, the present utility model provides two technical solutions:

embodiment one: the utility model provides a centrifuging tube suction filtration device, including connecting seat 1 and the first centrifuging tube 2 of setting at connecting seat 1 top internal surface, the bottom internal surface of connecting seat 1 is equipped with second centrifuging tube 3, first centrifuging tube 2 and second centrifuging tube 3 are current known technique, and second centrifuging tube 3 surface intercommunication is fixed with the rubber tube, and the one end and the vacuum pump of rubber tube are connected, be used for carrying out the evacuation to second centrifuging tube 3, the inner wall of connecting seat 1 is equipped with the limit structure 4 that is fixed first centrifuging tube 2 and second centrifuging tube 3, limit structure 4 is used for fixing first centrifuging tube 2 and second centrifuging tube 3, thereby ensure its leakproofness, limit structure 4 includes two backup pads 41 of fixed connection at connecting seat 1 inner wall, two backup pads 41 play the support fibre effect, one side fixed connection stopper 42 of backup pad 41, one side of the limiting block 42 is fixedly connected with the inner wall of the connecting seat 1, the inner surface of the limiting block 42 is slidably provided with a driving structure 44, the front end of the limiting block 42 is provided with a groove, the groove is matched with the driving structure 44, one side of the driving structure 44 is fixedly connected with a clamping block 45, the outer surface of the clamping block 45 is contacted with the outer surfaces of the first centrifugal tube 2 and the second centrifugal tube 3, the inner wall of the connecting seat 1 is provided with an open slot, the open slot is matched with the clamping block 45, the clamping block 45 is contacted with the outer surfaces of the first centrifugal tube 2 and the second centrifugal tube 3 through the open slot and is used for limiting and fixing the outer surfaces of the first centrifugal tube 2 and the second centrifugal tube 3, a transmission structure 46 for driving the driving structure 44 to move is arranged between the opposite sides of the two supporting plates 41, the transmission structure 46 is used for providing power, the driving structure 44 comprises a connecting plate 441 which is slidably connected with the inner surface of the limiting block 42, the inner surface of the connecting plate 441 is rotationally connected with a limiting disc 442, the outer surface of the limiting disc 442 is in rolling contact with the inner surface of the limiting block 42, the connecting plate 441 is in sliding connection with the inner surface of the groove of the limiting block 42, the limiting disc 442 is used for facilitating the movement of the connecting plate 441, the front end of the connecting plate 441 is fixedly connected with a connecting block 443, the front end of the connecting block 443 is rotationally connected with a driving rod 444, one end of the driving rod 444 is rotationally connected with a driving block 445, two ends of the driving rod 444 are rotationally connected with the driving block 445 and the connecting block 443 through connecting shafts, one side of the driving block 445 is fixedly connected with one side of a clamping block 45, the transmission structure 46 comprises a transmission shaft 461 rotationally connected to the inner wall of the connecting seat 1, one end of the transmission shaft 461 penetrates through the outer surface of the connecting seat 1 and is fixedly connected with a control block 462, the outer surface of the transmission shaft 461 is fixedly connected with a transmission gear 463, two sides of the outer surface of the transmission gear 463 are respectively meshed with a driving gear 464 through rotating the control block 462, thereby, the control block 462 drives the transmission shaft 461 to rotate, thereby driving the transmission gear 463 to rotate, and enabling the teeth of the transmission gear 463 to be meshed with the teeth of the two driving gears 464 and drive the two driving gears 464 to rotate, the inner surface of the driving gear 464 is fixedly connected with the threaded connecting rod 465, one end of the threaded connecting rod 465 penetrates through the supporting plate 41 and is rotationally connected with the inner wall of the connecting seat 1, one section of the threaded connecting rod 465 is in a connecting rod shape, one section of the threaded connecting rod part penetrates through the supporting plate 41, the supporting plate 41 plays a limiting role on the threaded connecting rod 465, the outer surface of the threaded connecting rod 465 is in threaded connection with the transmission plate 466, the rear end of the transmission plate 466 is fixedly connected with the front end of the connecting plate 441, the two driving gears 464 drive the two threaded connecting rods to rotate in the rotating process, thereby matching the transmission plate 465 to drive the connecting plate 441 to slide on the inner surface of the limiting block 42 and drive the limiting disc 442 to roll, the connecting block 443 is driven to move up and down through the driving rod 444 and the driving block 445 to drive the clamping block 45 to contact with the inner wall of the connecting seat 1, at this moment, under the resistance action of the connecting seat 1, the connecting block 443 drives the driving rod 444 to rotate, and one end of the connecting block 443 drives the clamping block 45 to move through the driving block 445 in the rotating process, and the connecting block moves to the inside of the connecting seat 1 and contacts the first centrifuge tube 2 and the second centrifuge tube 3, thereby fixing the first centrifuge tube 2 and the second centrifuge tube 3 and sealing the first centrifuge tube 3, so as to improve the suction filtration efficiency, the inner wall of the connecting seat 1 is fixedly connected with the filter element 5, the filter element 5 is the prior art of the suction filtration device, the top end of the filter element 5 is provided with the filter screen 6, the filter screen 6 is the prior art of the suction filtration device, the density is set according to the required numerical value, the top end of the filter screen 6 is provided with the filter paper 7, the filter paper 7 is the prior art of the suction filtration device, the top end of the filter paper 7 is provided with the sealing ring 8, the sealing ring 8 is the prior art of the suction device, the sealing effect is achieved on the first centrifuge tube 2, the top end of the sealing ring 8 is contacted with the first centrifuge tube 2, the end of the first centrifuge tube 3 is contacted with the silicon plug 9, and the inner surface of the silica gel plug 9 is contacted with the surface of the prior art, and the silica gel plug 9 is contacted with the outer surface of the centrifuge tube 3, and the silica gel plug is contacted with the surface 9.

Embodiment two: the utility model provides a centrifuging tube suction filtration device, including be equipped with the limit structure 4 that fixes first centrifuging tube 2 and second centrifuging tube 3 at the inner wall of connecting seat 1, limit structure 4 is used for fixing first centrifuging tube 2 and second centrifuging tube 3, thereby ensure its leakproofness, limit structure 4 includes two backup pads 41 of fixed connection at connecting seat 1 inner wall, two backup pads 41 play the support fibre effect, one side fixed connection stopper 42 of backup pad 41, and one side of stopper 42 and connecting seat 1's inner wall fixed connection, the internal surface slip of stopper 42 is equipped with drive structure 44, the front end of stopper 42 is seted up flutedly, the recess is with drive structure 44 adaptation, one side fixedly connected with fixture block 45 of drive structure 44, and the surface of fixture block 45 contacts with the surface of first centrifuging tube 2 and second centrifuging tube 3, the open slot has been seted up to connecting seat 1's inner wall, the open slot is matched with the clamping block 45, the clamping block 45 is contacted with the outer surfaces of the first centrifugal tube 2 and the second centrifugal tube 3 through the open slot and is used for limiting and fixing the first centrifugal tube 2 and the second centrifugal tube 3, a transmission structure 46 for driving the driving structure 44 to move is arranged between the opposite sides of the two supporting plates 41, the transmission structure 46 is used for providing power, the driving structure 44 comprises a connecting plate 441 which is slidingly connected with the inner surface of the limiting block 42, the inner surface of the connecting plate 441 is rotationally connected with a limiting disc 442, the outer surface of the limiting disc 442 is in rolling contact with the inner surface of the limiting block 42, the connecting plate 441 is slidingly connected with the inner surface of a groove of the limiting block 42, the limiting disc 442 is used for facilitating the movement of the connecting plate 441, the front end of the connecting plate 441 is fixedly connected with a connecting block 443, the front end of the connecting block 443 is rotationally connected with a driving rod 444, one end of the driving rod 444 is rotationally connected with a driving block 445, both ends of the driving rod 444 are rotatably connected with the driving block 445 and the connecting block 443 through the connecting shaft, one side of the driving block 445 is fixedly connected with one side of the clamping block 45, the transmission structure 46 comprises a transmission shaft 461 rotatably connected with the inner wall of the connecting seat 1, one end of the transmission shaft 461 penetrates through the outer surface of the connecting seat 1 and is fixedly connected with the control block 462, the outer surface of the transmission shaft 461 is fixedly connected with the transmission gear 463, both sides of the outer surface of the transmission gear 463 are meshed with the driving gear 464, the control block 462 is rotated, thereby driving the transmission gear 463 to make teeth of the driving gear 463 meshed with teeth of the two driving gears 464 and drive the two driving gears to rotate, the inner surface of the driving gear 443 is fixedly connected with a threaded connecting rod 465, one end of the threaded connecting rod 465 penetrates through the supporting plate 41 and is rotatably connected with the inner wall of the connecting seat 1, one section of the threaded connecting rod 465 is in a threaded shape, the connecting rod part penetrates through the supporting plate 41, the supporting plate 41 plays a limiting role on the threaded connecting rod 465, the outer surface of the threaded rod 465 is in threaded connection with the transmission plate 466, the rear end of the transmission plate 466 is fixedly connected with the front end of the connecting plate 464, the two driving gears 462 are driven by the control block 462, thereby driving the transmission gear 463 drives the transmission gear 463 to rotate, teeth of the driving gear 463 are driven by the two driving gear to rotate teeth of the driving block 444 and drive block 444 to rotate, the two driving block 45 are driven by the driving block 45 and drive the connecting block 45 to rotate, the inner surface of the connecting block 45 is driven by the driving block 45, and the driving block rotates, and the connecting block rotates and the connecting block 45 is driven by the driving block 45, and the driving block rotates and rotates, and rotates by the driving block 45, and rotates by the driving block and rotates through the driving block 45 and rotates, and the first centrifuge tube 2 and the second centrifuge tube 3 are fixed and sealed by moving the first centrifuge tube 2 and the second centrifuge tube 3 into the connecting seat 1 and contacting the first centrifuge tube 2 and the second centrifuge tube 3, so that the suction filtration efficiency is improved.

And all that is not described in detail in this specification is well known to those skilled in the art.

During operation, firstly, the filter screen 6 is placed at the top of the filter core 5, then the filter paper 7 is placed at the top of the filter screen 6, then the sealing ring 8 is placed at the top of the filter paper 7, then one end of the first centrifuge tube 2 is inserted into the filter paper through the top end of the connecting seat 1 and is in contact with the sealing ring 8, then one end of the filter core 5 is inserted into the second centrifuge tube 3, so that the opening of the second centrifuge tube 3 is in contact with the outer surface of the silica gel plug 9, then the control block 462 can be rotated, the control block 462 drives the transmission shaft 461 to rotate, thereby driving the transmission gear 463 to rotate, teeth of the transmission gear 463 are meshed with teeth of the two driving gears 464, thereby driving the two threaded connecting rods 465 to rotate through the driving gear 464, driving the transmission plate 466 to move in the rotating process, and driving the connecting plate 441 to slide on the inner surface of the limiting block 42 in the moving process of the transmission plate 466, and driving the limiting plate 442 to roll, thereby driving the connecting block 443 to drive the clamping block 45 to move up and down through the driving rod 444 to the driving block 445, and one side of the clamping block 45 is in contact with the inner wall of the connecting seat 1, and under the resistance of the connecting seat 1, so that the driving rod 444 is enabled to drive the driving block 444 to rotate and the driving block 45 to rotate and the first centrifuge tube 2 to move, thereby the first centrifuge tube 2 and the second centrifuge tube 2 are contacted with the first centrifuge tube 2 and the first centrifuge tube and the second centrifuge tube are driven and fixed.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a centrifuging tube suction filtration device, includes connecting seat (1) and sets up first centrifuging tube (2) at connecting seat (1) top internal surface, its characterized in that: the inner surface of the bottom end of the connecting seat (1) is provided with a second centrifuge tube (3), and the inner wall of the connecting seat (1) is provided with a limiting structure (4) for fixing the first centrifuge tube (2) and the second centrifuge tube (3);

limit structure (4) are including two backup pads (41) of fixed connection at connecting seat (1) inner wall, one side fixed connection stopper (42) of backup pad (41), and one side of stopper (42) and the inner wall fixed connection of connecting seat (1), the internal surface slip of stopper (42) is equipped with drive structure (44), one side fixedly connected with fixture block (45) of drive structure (44), and the surface contact of the surface of fixture block (45) and first centrifuging tube (2) and second centrifuging tube (3), two be equipped with between the opposite side of backup pad (41) drive structure (44) and carry out transmission structure (46) that remove.

2. The centrifuge tube suction filtration device of claim 1, wherein: the driving structure (44) comprises a connecting plate (441) which is slidably connected to the inner surface of the limiting block (42), a limiting disc (442) is rotatably connected to the inner surface of the connecting plate (441), and the outer surface of the limiting disc (442) is in rolling contact with the inner surface of the limiting block (42).

3. The centrifuge tube suction filtration device of claim 2, wherein: the front end fixedly connected with connecting block (443) of connecting plate (441), the front end of connecting block (443) rotates and is connected with actuating lever (444), the one end of actuating lever (444) rotates and is connected with drive piece (445), and one side of drive piece (445) and one side fixed connection of fixture block (45).

4. The centrifuge tube suction filtration device of claim 1, wherein: the transmission structure (46) comprises a transmission shaft (461) which is rotationally connected to the inner wall of the connecting seat (1), one end of the transmission shaft (461) penetrates through the outer surface of the connecting seat (1) and is fixedly connected with a control block (462), the outer surface of the transmission shaft (461) is fixedly connected with a transmission gear (463), and two sides of the outer surface of the transmission gear (463) are respectively meshed with a driving gear (464).

5. The centrifuge tube suction filtration device of claim 4, wherein: the inner surface of the driving gear (464) is fixedly connected with a threaded connecting rod (465), one end of the threaded connecting rod (465) penetrates through the supporting plate (41) and is rotationally connected with the inner wall of the connecting seat (1), the outer surface of the threaded connecting rod (465) is in threaded connection with a transmission plate (466), and the rear end of the transmission plate (466) is fixedly connected with the front end of the connecting plate (441).

6. The centrifuge tube suction filtration device of claim 1, wherein: the inner wall fixedly connected with filter core (5) of connecting seat (1), the top of filter core (5) is equipped with filter screen (6), the top of filter screen (6) is equipped with filter paper (7), the top of filter paper (7) is equipped with sealing washer (8), and the top of sealing washer (8) and the one end contact of first centrifuging tube (2), the surface of filter core (5) is equipped with silica gel plug (9), and the surface of silica gel plug (9) and the internal surface contact of second centrifuging tube (3).