CN217745914U - A filter equipment for preparing polyamide composite membrane - Google Patents

Abstract

The utility model discloses a filter equipment for preparing polyamide complex film, comprising a mounting plate, seat and rack are placed to mounting plate's top surface fixedly connected with supporting seat, waste liquid collecting box, the inner wall of rack is provided with filtering mechanism, the top surface of supporting seat is rotated and is connected with first electric telescopic handle, first electric telescopic handle's the end fixedly connected with baffle that stretches out, the bottom surface of baffle is rotated and is connected with rabbling mechanism, the top surface fixedly connected with of baffle is used for driving rabbling mechanism's motor, the bottom surface fixedly connected with of baffle snatchs the mechanism. The utility model discloses a snatch the mechanism and fall into the inside filter disk of filter mechanism and take out, avoided the hindrance of stirring rod, reduced user and mixture solution contact, made things convenient for the preparation of polyamide complex film.

Description

A filter equipment for preparing polyamide composite membrane

Technical Field

The application relates to the technical field of polyamide composite membrane preparation, in particular to a filtering device for preparing a polyamide composite membrane.

Background

The polyamide composite film prepared by using polyamide plastic, also called nylon, as a chemical product prepared by using polyamide resin as a base material is required to be prepared, and with the development of molecular chemistry, the polyamide composite film prepared by using the polyamide plastic as a raw material also becomes one of composite films with the widest application, and when the polyamide composite film is prepared, the common process is as follows: preparing a solution, soaking a supporting layer, reacting to generate a composite membrane, filtering, washing the composite membrane, and drying a rod, wherein a manufacturer needs the thin-film composite membrane of a filter screen to prepare a polyamide composite membrane.

The existing filtering device for preparing the polyamide composite membrane, such as the filtering device for preparing the polyamide composite membrane disclosed in Chinese patent No. CN213492288U, comprises a base, a supporting rod, a stirring mechanism, a filtering funnel and a filtrate tank.

However, the filtering apparatus for manufacturing the polyamide composite membrane has some disadvantages in that the filtering apparatus for manufacturing the polyamide composite membrane requires to take out the thin film-shaped composite membrane remaining on the filter plate after filtering the mixture, it is difficult for a user to insert an arm into the filtering apparatus to take out the filter plate due to the hindrance of the stirring shaft, and a large amount of chemical agents, which may be toxic to the skin of the human body, may remain on the inner wall of the filtering apparatus after the completion of the filtering, may be damaged by the chemical agents when the user inserts his or her hand into the filtering apparatus, may be added when preparing the solution for manufacturing the polyamide composite membrane.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a filter equipment for preparing polyamide complex film to solve the problem that proposes among the above-mentioned background art.

The embodiment of the application adopts the following technical scheme:

the utility model provides a filter equipment for preparing polyamide complex film, includes mounting plate, mounting plate's top surface fixedly connected with supporting seat, waste liquid collecting box place seat and rack, the inner wall of rack is provided with filtering mechanism, the top surface of supporting seat rotates and is connected with first electric telescopic handle, first electric telescopic handle's the end fixedly connected with baffle that stretches out, the bottom surface of baffle rotates and is connected with rabbling mechanism, the top surface fixedly connected with of baffle is used for driving rabbling mechanism's motor, the bottom surface fixedly connected with of baffle snatchs the mechanism.

Preferably, snatch the mechanism include with baffle bottom surface fixed connection's second electric telescopic handle, the end fixedly connected with that stretches out of second electric telescopic handle snatchs a section of thick bamboo, the second mounting groove has been seted up to the inner wall of snatching a section of thick bamboo, the quantity of second mounting groove is two, two the second mounting groove is used to snatch a positive vertical central line and is set up the both sides of snatching the inner wall of a section of thick bamboo as symmetry axis symmetry.

Preferably, two the equal sliding connection in inner wall of second mounting groove has the piece of snatching, two the equal fixedly connected with reset spring in the back of the body of snatching the piece, reset spring keeps away from the one end of snatching the piece and the inner wall fixed connection of second mounting groove.

Preferably, the rabbling mechanism includes and rotates with the baffle bottom surface and is connected the axis of rotation, the output shaft of motor run through the bottom surface of baffle and with the top surface fixed connection of axis of rotation, the bottom surface fixedly connected with connecting plate of axis of rotation, the bottom surface of connecting plate rotates and is connected with the gear, the interior roof of connecting plate sliding connection respectively has first rack and second rack, the gear respectively with first rack and second rack meshing.

Preferably, the bottom surface fixedly connected with second puddler of first rack, the first puddler of bottom surface fixedly connected with of second rack, the hole of dodging has been seted up to the top surface of first rack, the front side fixedly connected with installation piece of connecting plate, installation piece top surface set up threaded hole, the inner wall threaded connection of screw hole has the bolt, the surface of bolt with dodge downthehole wall sliding connection, the bottom threaded connection of bolt has the nut.

Preferably, the filtering mechanism comprises a filter cartridge arranged on the inner wall of the placing rack, sliding chutes are formed in the inner wall of the filter cartridge, the number of the sliding chutes is two, the sliding chutes are symmetrically arranged on two sides of the inner wall of the filter cartridge by taking a vertical center line of the front side of the filter cartridge as a symmetry axis, the inner walls of the sliding chutes are connected with sliding blocks in a sliding mode, the sliding blocks are connected with the same filter disc in a sliding mode, opposite faces of the sliding blocks are fixedly connected with the same filter disc, and a funnel is fixedly connected to the bottom face of the filter cartridge.

Preferably, the inner bottom wall of the filter disc is fixedly connected with a supporting block, the top surface of the supporting block is fixedly connected with a sliding rod, the surface of the sliding rod is slidably connected with a release ring, and the top end of the sliding rod is fixedly connected with a clamping block.

The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:

one of the two, the utility model discloses an after first electric telescopic handle stretches out filtering mechanism with rabbling mechanism, rotate first electric telescopic handle, will snatch the mechanism and remove filtering mechanism's top, will snatch the mechanism through first electric telescopic handle and fall into inside the filtering mechanism, utilize second electric telescopic handle to push a section of thick bamboo to the filter disc snatchs, treat to snatch the piece card when the fixture block below, utilize first electric telescopic handle to remove a section of thick bamboo and place on the seat, the hindrance of stirring rod has been avoided, user and mixture solution contact have been reduced, the preparation of polyamide complex film has been made things convenient for.

Its two, through manual rotating gear, can order about first rack and the motion of second rack, and then drive first puddler and the removal of second puddler to changed the distance between first puddler and the second puddler, can be with the more abundant stirring of mixture solution, simultaneously, because first puddler and second puddler all are the round rod form, can reduce the injury to the complex film of puddler to the film form.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a diagram: the structure of the utility model is shown schematically;

FIG. 2 is a diagram of: the structure schematic diagram of the grabbing mechanism of the utility model is shown;

FIG. 3 is a diagram of: the cross-sectional structure of the grabbing cylinder of the utility model is schematically shown;

FIG. 4 shows: the structure schematic diagram of the stirring mechanism of the utility model;

FIG. 5 is a diagram: the utility model discloses a schematic view of the upward structure of the stirring mechanism;

FIG. 6 is a diagram of: the structure schematic diagram of the filtering mechanism of the utility model;

FIG. 7 is a diagram of: the sectional structure schematic diagram of the filter cylinder of the utility model;

FIG. 8 is a diagram of: the utility model discloses filtering mechanism's part structure schematic diagram.

In the figure: 1. mounting a bottom plate; 2. a supporting base; 3. a first electric telescopic rod; 4. a partition plate; 5. a motor; 6. a stirring mechanism; 601. a rotating shaft; 602. a connecting plate; 603. a bolt; 604. a first stirring rod; 605. a second stirring rod; 606. a gear; 607. a first rack; 608. a second rack; 609. avoiding holes; 610. mounting blocks; 611. a nut; 7. a filtering mechanism; 701. a filter cartridge; 702. a chute; 703. a slider; 704. a filter disc; 705. a funnel; 706. a support block; 707. a slide bar; 708. a release ring; 709. a clamping block; 8. a waste liquid collection box; 9. a grabbing mechanism; 901. a second electric telescopic rod; 902. a grabbing cylinder; 903. a second mounting groove; 904. grabbing blocks; 905. a return spring; 10. a placing seat.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 8, the present invention provides a technical solution of a filtering apparatus for preparing a polyamide composite membrane:

the utility model provides a filter equipment for preparing polyamide complex film, including mounting plate 1, mounting plate 1's top surface fixedly connected with supporting seat 2, seat 10 and rack are placed to waste liquid collecting box 8, the inner wall of rack is provided with filtering mechanism 7, the top surface of supporting seat 2 is rotated and is connected with first electric telescopic handle 3, the fixedly connected with baffle 4 of the extension end of first electric telescopic handle 3, the bottom surface of baffle 4 is rotated and is connected with rabbling mechanism 6, the top surface fixedly connected with of baffle 4 is used for driving motor 5 of rabbling mechanism 6, the bottom surface fixedly connected with of baffle 4 snatchs mechanism 9.

Snatch mechanism 9 include with 4 bottom surfaces fixed connection's of baffle second electric telescopic handle 901, the end fixedly connected with that stretches out of second electric telescopic handle 901 snatchs a section of thick bamboo 902, snatchs a section of thick bamboo 902's inner wall and has seted up second mounting groove 903, and the quantity of second mounting groove 903 is two, and two second mounting grooves 903 use the vertical central line that snatchs a section of thick bamboo 902 front to set up the both sides of snatching the inner wall of a section of thick bamboo 902 as symmetry axis symmetry.

The equal sliding connection of inner wall of two second mounting grooves 903 has snatchs piece 904, and two equal fixedly connected with reset spring 905 of the back of the body that snatch piece 904, reset spring 905 keep away from the one end of snatching piece 904 and the inner wall fixed connection of second mounting groove 903.

The filter mechanism 7 comprises a filter cartridge 701 arranged on the inner wall of the placing rack, sliding chutes 702 are formed in the inner wall of the filter cartridge 701, the number of the sliding chutes 702 is two, the two sliding chutes 702 are symmetrically arranged on two sides of the inner wall of the filter cartridge 701 by taking the vertical central line of the front surface of the filter cartridge 701 as a symmetry axis, the inner walls of the two sliding chutes 702 are respectively connected with a sliding block 703 in a sliding manner, the opposite surfaces of the two sliding blocks 703 are fixedly connected with a same filter disc 704, and the bottom surface of the filter cartridge 701 is fixedly connected with a funnel 705.

A supporting block 706 is fixedly connected to the inner bottom wall of the filter disc 704, a sliding rod 707 is fixedly connected to the top surface of the supporting block 706, a release ring 708 is slidably connected to the surface of the sliding rod 707, and a clamping block 709 is fixedly connected to the top end of the sliding rod 707.

Specifically, the mounting base plate 1 is used for providing a mounting platform, the supporting base 2 is used for supporting the first electric telescopic rod 3, the partition plate 4 is used for providing a mounting platform for the motor 5, the stirring mechanism 6 and the grabbing mechanism 9, the filtering mechanism 7 is used for filtering a mixture, the first electric telescopic rod 3 provides ascending power for the stirring mechanism 6 and the grabbing mechanism 9, the motor 5 provides stirring power for the stirring mechanism 6, the placing base 10 is used for placing the filtering disc 704 grabbed by the grabbing mechanism 9, when a user uses the grabbing mechanism 9, the first electric telescopic rod 3 is firstly used for lifting the partition plate 4, the stirring mechanism 6 is lifted out of the filtering mechanism 7, then the first electric telescopic rod 3 is rotated to enable the grabbing mechanism 9 to be aligned with the filtering mechanism 7, then the first electric telescopic rod 3 is controlled for lowering the partition plate 4, then the second electric telescopic rod 901 is started, and the second electric telescopic rod 901 is used for driving the grabbing barrel 902 to move downwards, because the bottom surface of the grabbing block 904 is an inclined surface, and the fixture block 709 is a circular truncated cone with a small top and a big bottom, when the grabbing barrel 902 moves, the grabbing block 904 is driven to move downwards, because the grabbing block 904 is squeezed by the fixture block 709, the grabbing block 904 moves towards the inside of the second installation groove 903 along the inner wall of the second installation groove 903, at this time, the return spring 905 is pressed, when the grabbing block 904 crosses the fixture block 709, under the action of the return spring 905, the grabbing block 904 pops out, at this time, the protrusion of the extending end of the second electric telescopic rod 901 stops, because of the shape limitation of the grabbing block 904 and the fixture block 709, when the fixture block 709 moves upwards, the filter disc 704 is driven to move upwards, then the first electric telescopic rod 3 is started again, the output end of the first electric telescopic rod 3 is controlled to lift the partition plate 4, and the grabbing mechanism 9 is lifted out of the filter mechanism 7, then, the first electric telescopic rod 3 is rotated to return the grabbing mechanism 9 to the original position, the partition plate 4 is lowered, at this time, the extending end of the second electric telescopic rod 901 is still held in an extending state, the second electric telescopic rod 901 is started, the extending end of the second electric telescopic rod 901 is controlled to extend continuously until the filter disc 704 abuts against the top surface of the placing seat 10, at this time, since the shape of the release ring 708 is basically the same as that of the clamping block 709, only the top is large and the bottom is small, the grabbing block 904 is squeezed by the release ring 708, the grabbing block 904 moves towards the inside of the second mounting groove 903 along the inner wall of the second mounting groove 903, at this time, the return spring 905 is pressed, when the grabbing block 904 crosses the release ring 708, the grabbing block pops out under the action of the return spring 905, the grabbing block 904 is clamped in the second mounting groove 903, at this time, the grabbing block 708 drives the release ring 708 to move upwards until the release ring 903 abuts against the clamping block 709, at this time, because the shape of the clamping block 709 and the release ring 708 is limited, when the grabbing block 904 moves towards the inside of the second mounting groove 903 along the inner wall of the second mounting groove 903, the release ring 904, the release spring is pushed out, the release spring, the clamping block 905, and the action of the grabbing block 904 is released from the filter disc 904, and the release mechanism is achieved.

In this embodiment, as shown in fig. 4-5, the stirring mechanism 6 includes a rotating shaft 601 rotatably connected to the bottom surface of the partition board 4, an output shaft of the motor 5 penetrates through the bottom surface of the partition board 4 and is fixedly connected to the top surface of the rotating shaft 601, a connecting plate 602 is fixedly connected to the bottom surface of the rotating shaft 601, a gear 606 is rotatably connected to the bottom surface of the connecting plate 602, a first rack 607 and a second rack 608 are slidably connected to the inner top wall of the connecting plate 602, and the gear 606 is engaged with the first rack 607 and the second rack 608 respectively.

The bottom surface of the first rack 607 is fixedly connected with a second stirring rod 605, the bottom surface of the second rack 608 is fixedly connected with a first stirring rod 604, the top surface of the first rack 607 is provided with an avoiding hole 609, the front side of the connecting plate 602 is fixedly connected with an installation block 610, the top surface of the installation block 610 is provided with a threaded hole, the inner wall of the threaded hole is in threaded connection with a bolt 603, the surface of the bolt 603 is in sliding connection with the inner wall of the avoiding hole 609, and the bottom end of the bolt 603 is in threaded connection with a nut 611.

Specifically, when a user starts the motor 5, the motor 5 drives the rotation shaft 601 to rotate, when the rotation shaft 601 rotates, the connection plate 602 rotates, when the connection plate 602 rotates, the first rack 607 and the second rack 608 rotate to drive the first stirring rod 604 and the second stirring rod 605 to rotate, the first stirring rod 604 and the second stirring rod 605 stir the composite film mixture, so as to ensure that the composite film is more sufficiently filtered, the user can also manually rotate the gear 606 to drive the gear 606 to rotate, and drive the first rack 607 and the second rack 608 to move, so as to change the distance between the first stirring rod 604 and the second stirring rod 605, and ensure that the mixture is sufficiently stirred, wherein, in actual use, a knob can be additionally arranged on the gear 606 to facilitate the rotation of the gear 606 (not shown in the figure).

The working principle is as follows: when the filtering device for preparing the polyamide composite membrane is used, a user firstly pours the prepared solution into the filtering mechanism 7, controls the first electric telescopic rod 3, adjusts the extending end of the first electric telescopic rod 3 to a proper position to ensure that the first stirring rod 604 and the second stirring rod 605 do not abut against the filtering disc 704 and do not force the filtering disc 704 too far, then starts the motor 5, when the user starts the motor 5, the motor 5 drives the rotating shaft 601 to rotate, when the rotating shaft 601 rotates, the connecting plate 602 drives the first rack 607 and the second rack 608 to rotate, the first rack 607 and the second rack 608 rotate to drive the first stirring rod 604 and the second stirring rod 605 to rotate, the first stirring rod 604 and the second stirring rod 605 stir the composite membrane mixture to ensure that the composite membrane filtration is more sufficient, and the user can manually rotate the gear 606, the gear 606 is driven to rotate to drive the first rack 607 and the second rack 608 to move, so that the distance between the first stirring rod 604 and the second stirring rod 605 is changed, the mixture is fully stirred, after the filtration is finished, the first electric telescopic rod 3 is firstly utilized to lift the partition plate 4, the stirring mechanism 6 is lifted out of the filtering mechanism 7, then the first electric telescopic rod 3 is rotated to enable the grabbing mechanism 9 to be aligned with the filtering mechanism 7, then the first electric telescopic rod 3 is controlled to lower the partition plate 4, then the second electric telescopic rod 901 is started, the grabbing barrel 902 is driven to move downwards by the second electric telescopic rod 901, as the bottom surface of the grabbing block 904 is an inclined surface and the fixture block 709 is a circular table with a small top and a large bottom, the grabbing block 904 is driven to move downwards when the grabbing barrel 902 moves, and as the grabbing block 904 is squeezed by the fixture block 709, the grabbing block 904 moves towards the inside of the second installation groove 903 along the inner wall of the second installation groove, at the moment, the return spring 905 is pressed, when the grabbing block 904 goes over the fixture block 709, under the action of the return spring 905, the grabbing block 904 pops up, at the moment, the extension of the extending end of the second electric telescopic rod 901 is stopped, due to the shape limitation of the catching block 904 and the catching block 709, the catching block 709 is caught inside the catching cylinder 902, and when the catching block 709 moves upwards, the filter disc 704 is driven to move upwards, then the first electric telescopic rod 3 is started again, the output end of the first electric telescopic rod 3 is controlled to lift the partition plate 4, the grabbing mechanism 9 is lifted out of the filtering mechanism 7, then the first electric telescopic rod 3 is rotated to return the grabbing mechanism 9 to the original position, and then the clapboard 4 is lowered, at the moment, the extending end of the second electric telescopic rod 901 is still held in the extending state, the second electric telescopic rod 901 is started, the extending end of the second electric telescopic rod 901 is controlled to continue to extend until the filter disc 704 abuts against the top surface of the placing seat 10, at this time, since the shape of the escape ring 708 is substantially the same as that of the catching block 709, but the top is large and the bottom is small, the catching block 904 is pressed by the escape ring 708, the catching block 904 moves toward the inside of the second mounting groove 903 along the inner wall of the second mounting groove 903, at this time, the return spring 905 is compressed, and when the catching block 904 passes over the escape ring 708, under the action of the return spring 905, the grabbing block 904 pops up to clamp the release ring 708, at this time, the extension end of the second electric telescopic rod 901 is controlled to retract, the grabbing block 904 drives the release ring 708 to move upwards until the release ring 708 abuts against the clamping block 709, due to the shape restriction of the catching block 709 and the escape ring 708, the catching block 904 moves toward the inside of the second mounting groove 903 along the inner wall of the second mounting groove 903, at which time the return spring 905 is compressed, and when the catching block 904 gets over the catching block 709, under the action of the return spring 905, the gripping block 904 pops out, and the gripping mechanism 9 is separated from the filter disc 704.

It should also be noted that 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. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a process, method, article, or apparatus comprising the element.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (7)

1. A filter device for the preparation of polyamide composite membranes, comprising a mounting base plate (1), characterized in that: the utility model discloses a novel mounting plate, including mounting plate (1), top surface fixedly connected with supporting seat (2), waste liquid collecting box (8), place seat (10) and rack, the inner wall of rack is provided with filtering mechanism (7), the top surface of supporting seat (2) is rotated and is connected with first electric telescopic handle (3), the extension end fixedly connected with baffle (4) of first electric telescopic handle (3), the bottom surface of baffle (4) is rotated and is connected with rabbling mechanism (6), the top surface fixedly connected with of baffle (4) is used for driving motor (5) of rabbling mechanism (6), the bottom surface fixedly connected with of baffle (4) snatchs mechanism (9).

2. A filter device for producing a polyamide composite membrane according to claim 1, characterized in that: the grabbing mechanism (9) comprises a second electric telescopic rod (901) fixedly connected with the bottom surface of the partition plate (4), the extending end of the second electric telescopic rod (901) is fixedly connected with a grabbing barrel (902), a second mounting groove (903) is formed in the inner wall of the grabbing barrel (902), the number of the second mounting grooves (903) is two, and the second mounting grooves (903) are symmetrically arranged on two sides of the inner wall of the grabbing barrel (902) by taking a vertical center line on the front side of the grabbing barrel (902) as a symmetry axis.

3. A filtration apparatus for the preparation of polyamide composite membranes according to claim 2, characterized in that: two the equal sliding connection of inner wall of second mounting groove (903) has and snatchs piece (904), two the equal fixedly connected with reset spring (905) of the back of the body that snatchs piece (904), reset spring (905) are kept away from the one end of snatching piece (904) and the inner wall fixed connection of second mounting groove (903).

4. A filtration apparatus for the preparation of polyamide composite membranes according to claim 3, characterized in that: rabbling mechanism (6) including with baffle (4) bottom surface rotation connection axis of rotation (601), the output shaft of motor (5) run through the bottom surface of baffle (4) and with the top surface fixed connection of axis of rotation (601), the bottom surface fixedly connected with connecting plate (602) of axis of rotation (601), the bottom surface rotation of connecting plate (602) is connected with gear (606), the interior roof of connecting plate (602) sliding connection respectively has first rack (607) and second rack (608), gear (606) respectively with first rack (607) and second rack (608) meshing.

5. A filtration unit for the preparation of polyamide composite membranes according to claim 4, characterized in that: the utility model discloses a bolt, including the bottom surface fixedly connected with second puddler (605) of first rack (607), the bottom surface fixedly connected with first puddler (604) of second rack (608), dodge hole (609) have been seted up to the top surface of first rack (607), the front side fixedly connected with installation piece (610) of connecting plate (602), threaded hole has been seted up to installation piece (610) top surface, the inner wall threaded connection of screw hole has bolt (603), the surface of bolt (603) with dodge hole (609) inner wall sliding connection, the bottom threaded connection of bolt (603) has nut (611).

6. A filter device for producing a polyamide composite membrane according to claim 1, characterized in that: filter mechanism (7) including setting up cartridge filter (701) at the rack inner wall, spout (702) have been seted up to the inner wall of cartridge filter (701), the quantity of spout (702) is two, two spout (702) use the positive vertical central line of cartridge filter (701) to set up in the both sides of cartridge filter (701) inner wall as symmetry axis symmetry, two equal sliding connection in inner wall of spout (702) has slider (703), two the same filter disc (704) of opposite face fixedly connected with of slider (703), the bottom surface fixedly connected with funnel (705) of cartridge filter (701).

7. A filter device for producing a polyamide composite membrane according to claim 6, characterized in that: the inner bottom wall of the filter disc (704) is fixedly connected with a supporting block (706), the top surface of the supporting block (706) is fixedly connected with a sliding rod (707), the surface of the sliding rod (707) is connected with a disengaging ring (708) in a sliding mode, and the top end of the sliding rod (707) is fixedly connected with a clamping block (709).

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