Filtering device for pesticide production

Abstract

The invention discloses a filtering device for pesticide production, and relates to the technical field of pesticide production, the filtering device comprises a sealing chamber, a sealing cover, a discharging pipe and a feeding pipe, and further comprises a bottom plate, a winding roller, filtering cloth, a fixing mechanism and a filtering cloth replacing mechanism, and the filtering cloth replacing mechanism comprises a power assembly, a sealing assembly, a liquid pumping assembly, an unfastening assembly and a winding assembly. By arranging the filter cloth replacing mechanism, blocked filter cloth can be conveniently and quickly replaced, the filtering efficiency is improved, and the downtime of equipment is shortened; due to the design of the fixing mechanism, the filtering piece can be firmly fixed, the stability and the sealing performance in the filtering process are ensured, and liquid leakage is prevented; the sealing assembly is matched with the liquid extraction assembly, so that good sealing and liquid extraction can be realized in the filter cloth replacement process, and liquid pollution and waste are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of pesticide production, and specifically to a filtering device for pesticide production. Background Art

[0002] During the pesticide production process, the filtration of liquid materials is a common technological process. Due to continuous filtration in traditional filtering devices, impurities accumulate and clog the filter cloth, and it is necessary to frequently stop the machine to disassemble, clean or replace the filter cloth, which affects the quality and efficiency of pesticide production. Therefore, there is an urgent need for a filtering device for pesticide production to solve the above problems. Summary of the Invention

[0003] The purpose of the embodiments of the present invention is to provide a filtering device for pesticide production to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A filtering device for pesticide production includes a sealed chamber. The top of the sealed chamber is detachably provided with a sealing cover. The bottom of the sealed chamber is provided with a discharge pipe. The sealing cover is movably clamped with a feed pipe. It further includes:

[0006] A bottom plate, which is located inside the sealed chamber and is connected thereto;

[0007] Filtering elements. There are several groups of the filtering elements, which are arranged in a circular pattern at equal intervals for filtering the liquid. One group of the filtering elements includes: two winding rollers and a filter cloth. The bottom end of the winding roller abuts against the bottom plate. Both ends of the filter cloth are respectively connected to the two winding rollers and are wound around one group of the winding rollers;

[0008] A fixing mechanism, with one end connected to the bottom plate and the other end connected to the winding roller, for fixing the filtering element;

[0009] A filter cloth replacement mechanism for replacing the clogged filter cloth. The filter cloth replacement mechanism includes:

[0010] A power component, which is connected to the fixing mechanism and is used to drive the fixing mechanism to rotate;

[0011] A sealing component, with one end connected to the fixing mechanism and the other end connected to the bottom plate, for cooperating with the fixing mechanism to seal the periphery of the filter cloth;

[0012] A liquid pumping component, with one end connected to the fixing mechanism and the other end connected to the sealing component, for pumping out the liquid in the sealed space;

[0013] A fixing release component, which is connected to the fixing mechanism and is used to release the fixing of the fixing mechanism on the filter cloth;

[0014] The winding assembly is connected to the fixing mechanism and is used to drive the winding roller to rotate for replacing the filter cloth.

[0015] As a further solution of the present invention: The fixing mechanism includes:

[0016] The double-arc sleeve, the bottom end of which is connected to the bottom plate. The double-arc sleeve is composed of two groups of arc sleeves with the same axis and different diameters, and there is a gap between the two groups of arc sleeves;

[0017] The top plate is in contact with the top end of the double-arc sleeve, and the top plate is connected to the feed pipe;

[0018] The clamping assembly, one end of which is connected to the bottom plate and the other end is connected to the top plate, is used to fix the winding roller;

[0019] The first rotating ring is rotatably connected to the bottom plate;

[0020] The positioning assembly, the bottom end of which is rotatably connected to the first rotating ring, is used to fix the top plate;

[0021] The second rotating ring is rotatably connected to the top plate and is connected to the top end of the positioning assembly;

[0022] The four-side fixing assembly is connected to the double-arc sleeve and is in contact with the filter cloth, and is used to fix the four sides of the filter cloth.

[0023] As a further solution of the present invention: The clamping assembly includes:

[0024] The rotating clamping rod, the bottom end of which is rotatably connected to the bottom plate and the top end of which is in contact with the top plate. The rotating clamping rod is coaxially arranged with the double-arc sleeve, and the rotating clamping rod is slidably clamped with the winding roller;

[0025] The sliding clamping rod is clamped with the top of the rotating clamping rod;

[0026] The rotating rod penetrates through the top plate and is rotatably connected to it. The bottom end of the rotating rod is connected to the sliding clamping rod.

[0027] As a further solution of the present invention: The positioning assembly includes:

[0028] The folding rod, the bottom end of which is rotatably connected to the first rotating ring;

[0029] The sliding sleeve is slidably connected to the top of the folding rod;

[0030] The first elastic member, one end of which is connected to the sliding sleeve and the other end is connected to the top end of the folding rod;

[0031] The clamping sleeve is connected to the second rotating ring and is clamped with the sliding sleeve.

[0032] As a further solution of the present invention: The four-side fixing assembly includes:

[0033] The connecting sleeve is connected to the double-arc sleeve and is internally connected to the gap on the double-arc sleeve;

[0034] The sliding rod is slidably connected to the connecting sleeve;

[0035] The connecting plate is connected to the sliding rod;

[0036] The second elastic member has one end connected to the double-arc sleeve and the other end connected to the connecting plate, and the second elastic member is in a stretched state;

[0037] The arc plates are provided in two groups and are located in the gap on the double-arc sleeve. The arc plates are rotatably connected to the double-arc sleeve and are in contact with the filter cloth;

[0038] The fixing plate: Two fixing plates are connected to one group of arc plates. The fixing plates are respectively connected to the top and bottom of the arc plates, and the fixing plates are in contact with the filter cloth.

[0039] As a further solution of the present invention: The power assembly includes:

[0040] The motor is connected to the top plate;

[0041] The first gear is connected to the output end of the motor;

[0042] The toothed ring is rotatably connected to the top plate and is connected to the second rotating ring. The toothed ring meshes with the first gear.

[0043] As a further solution of the present invention: The sealing assembly includes:

[0044] The fixed orifice plate is symmetrically arranged on both sides of the filter cloth, has its bottom end connected to the bottom plate, is connected to the double-arc sleeve on both sides, and has its top end in contact with the top plate. A number of first water holes are opened on the fixed orifice plate;

[0045] The sliding orifice plate is in sliding contact with the fixed orifice plate. The sliding orifice plate penetrates through the bottom plate and the top plate and is slidably clamped therewith. A number of second water holes are opened on the sliding orifice plate;

[0046] The third elastic member has its top end connected to the bottom plate and its bottom end connected to the sliding orifice plate;

[0047] The first beveled arc plate: A number of first beveled arc plates are provided and are arranged in a circumferential pattern at equal intervals. One side of the first beveled arc plate is a beveled structure;

[0048] The first pressing wheel is connected to the first rotating ring.

[0049] As a further solution of the present invention: The liquid pumping assembly includes:

[0050] The liquid pump is connected to the bottom plate. The input end of the liquid pump penetrates through the bottom plate and is connected thereto. The penetration position is on the side of the filter cloth close to the inner wall of the sealing chamber and is between the fixed orifice plate and the filter cloth;

[0051] The first sensing part, connected to the top end of the sliding orifice plate;

[0052] The fixed rod, with its bottom end connected to the top plate;

[0053] The second sensing part, connected to the top end of the fixed rod and located above the first sensing part;

[0054] The pressure balance pipe, with its bottom end penetrating through and connected to the top plate, and the pressure balance pipe is located between the filter cloth and the fixed orifice plate.

[0055] As a further scheme of the present invention: The unlocking and fixing assembly includes:

[0056] The second bevel arc plate, connected to the connecting plate, and the end of the second bevel arc plate close to the connecting plate is of a bevel structure;

[0057] The second pressing wheel, connected to the first rotating ring.

[0058] As a further scheme of the present invention: The winding assembly includes:

[0059] The tooth arc, connected to the second rotating ring;

[0060] The fixed sleeve, connected to the top plate and located above the winding roller around which the clean filter cloth is wound;

[0061] The second gear, connected to the rotating rod and coaxially arranged with another set of winding rollers, and the second gear meshes with the tooth arc;

[0062] The telescopic rod, with one end connected to the top plate;

[0063] The locking teeth, connected to the other end of the telescopic rod, and the locking teeth are clamped with the second gear;

[0064] The fourth elastic part, with one end connected to the locking teeth and the other end connected to the telescopic rod;

[0065] The scroll spring, with one end connected to the rotating rod and the other end connected to the fixed sleeve.

[0066] Compared with the prior art, the beneficial effects of the present invention are:

[0067] 1. By setting the filter cloth replacement mechanism, the clogged filter cloth can be replaced conveniently and quickly, improving the filtration efficiency and reducing the equipment downtime;

[0068] 2. The design of the fixing mechanism can firmly fix the filter element, ensuring the stability and tightness of the filtration process and preventing liquid leakage;

[0069] 3. The cooperation of the sealing assembly and the liquid pumping assembly can achieve good sealing and liquid extraction during the filter cloth replacement process, avoiding liquid pollution and waste;

[0070] 4. The overall structure is compact, reasonably designed, easy to operate and maintain, applicable to the liquid filtration link in pesticide production, and has high practicality and popularization value. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Figure 1 It is a schematic structural diagram of a filtration device for pesticide production in an embodiment of the present invention.

[0072] Figure 2 It is a sectional view of a filtration device for pesticide production in an embodiment of the present invention.

[0073] Figure 3 It is a schematic internal structure diagram of a filtration device for pesticide production in an embodiment of the present invention.

[0074] Figure 4 It is a schematic structural diagram of a filter element in an embodiment of the present invention.

[0075] Figure 5 It is Figure 4 a schematic enlarged structure diagram of part A in

[0076] Figure 6 It is a sectional view of the top plate in an embodiment of the present invention.

[0077] Figure 7 It is Figure 6 a schematic enlarged structure diagram of part B in

[0078] Figure 8 It is a schematic structural diagram of a positioning component in an embodiment of the present invention.

[0079] Figure 9 It is a schematic structural diagram of a power component in an embodiment of the present invention.

[0080] Figure 10 It is a sectional view of the positioning component in an embodiment of the present invention.

[0081] Figure 11 It is a schematic structural diagram of a liquid extraction component in an embodiment of the present invention.

[0082] Figure 12 It is a schematic structural diagram of a sealing component in an embodiment of the present invention.

[0083] Figure 13 It is a schematic structural diagram of a solid release component in an embodiment of the present invention.

[0084] Figure 14 It is a schematic structural diagram of a four-side fixing component in an embodiment of the present invention.

[0085] In the figure: 1. Sealing chamber; 2. Sealing cover; 3. Feed pipe; 4. Discharge pipe; 5. Bottom plate; 6. Fixing mechanism; 61. Double-arc sleeve; 62. Top plate; 63. Clamping component; 64. First rotating ring; 65. Positioning component; 66. Second rotating ring; 67. Quadrilateral fixing component; 631. Rotating clamping rod; 632. Sliding clamping rod; 633. Rotating rod; 651. Folding rod; 652. Sliding sleeve; 653. First elastic member; 654. Clamping sleeve; 671. Connecting sleeve; 672. Sliding rod; 673. Second elastic member; 674. Connecting plate; 675. Arc plate; 676. Fixing plate; 7. Filter cloth replacement mechanism; 71. Power component; 72. Sealing component; 73. Liquid pumping component; 74. Fixing release component; 75. Winding component; 711. Motor; 712. First gear; 713. Tooth ring; 721. Fixed orifice plate; 722. Sliding orifice plate; 723. Third elastic member; 724. First beveled arc plate; 725. First pressing wheel; 731. Liquid pump; 732. First sensing member; 733. Fixed rod; 734. Second sensing member; 735. Pressure balance pipe; 741. Second beveled arc plate; 742. Second pressing wheel; 751. Tooth arc; 752. Second gear; 753. Telescopic rod; 754. Clamping teeth; 755. Fourth elastic member; 756. Fixed sleeve; 757. Volute spring; 8. Winding roller; 9. Filter cloth. Detailed implementation manners

[0086] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0087] In the embodiments of the present invention, please refer to Figures 1 to 14 , a filtering device for pesticide production, including a sealing chamber 1, a sealing cover 2 is detachably provided at the top of the sealing chamber 1, a discharge pipe 4 is provided at the bottom of the sealing chamber 1, the sealing cover 2 is movably clamped with a feed pipe 3, and further includes:

[0088] A bottom plate 5, located inside the sealing chamber 1 and connected thereto;

[0089] Filtering elements, several groups of the filtering elements are provided and arranged at equal intervals in a circumferential manner for filtering liquid. One group of the filtering elements includes: two winding rollers 8 and a filter cloth 9. The bottom end of the winding roller 8 abuts against the bottom plate 5, and both ends of the filter cloth 9 are respectively connected to the two winding rollers 8 and wound around one group of the winding rollers 8;

[0090] A fixing mechanism 6, one end of which is connected to the bottom plate 5 and the other end is connected to the winding roller 8 for fixing the filtering elements;

[0091] A filter cloth replacement mechanism 7 for replacing the clogged filter cloth 9, the filter cloth replacement mechanism 7 comprising:

[0092] A power component 71, connected to the fixing mechanism 6, for driving the fixing mechanism 6 to rotate;

[0093] A sealing component 72, with one end connected to the fixing mechanism 6 and the other end connected to the bottom plate 5, for cooperating with the fixing mechanism 6 to seal the periphery of the filter cloth 9;

[0094] A liquid extraction component 73, with one end connected to the fixing mechanism 6 and the other end connected to the sealing component 72, for extracting the liquid in the sealed space;

[0095] A fixing release component 74, connected to the fixing mechanism 6, for releasing the fixing of the fixing mechanism 6 on the filter cloth 9;

[0096] A winding component 75, connected to the fixing mechanism 6, for driving the winding roller 8 to rotate and replacing the filter cloth 9.

[0097] Filtering process: The liquid to be filtered is sent into the sealed chamber 1 through the feed pipe 3. The liquid is filtered through the filtering element. The filter cloth 9 in the filtering element intercepts the impurities in the liquid. The filtered liquid is discharged from the discharge pipe 4. During the filtering process, the fixing mechanism 6 fixes the filtering element to ensure the stability and sealing of the filter cloth 9;

[0098] Filter cloth replacement process: When the filter cloth 9 is clogged and needs to be replaced, first, the power component 71 is started to drive the fixing mechanism 6 to rotate. The fixing mechanism 6 drives the sealing component 72 to move. The sealing component 72 cooperates with the fixing mechanism 6 to seal the periphery of the filter cloth 9 to prevent liquid leakage. The liquid extraction component 73 extracts all the liquid in the sealed space to create conditions for filter cloth replacement. The fixing release component 74 releases the fixing of the fixing mechanism 6 on the filter cloth 9, making the filter cloth 9 in a replaceable state. The power component 71 drives the winding component 75 to rotate, driving the winding roller 8 without the clean filter cloth 9 wound thereon to rotate, winding the clogged filter cloth 9 onto this group of winding rollers 8, and at the same time winding out the new filter cloth 9 from the winding roller 8 with the clean filter cloth 9 wound thereon to complete the replacement of the filter cloth. After the replacement is completed, the fixing mechanism 6 fixes the filtering element again, the sealing component 72 releases the sealed state, and the normal working state of the filtering device is restored. Moreover, several groups of filter cloths 9 are not replaced synchronously, and the filtering state of other filter cloths 9 will not be affected.

[0099] As an embodiment of the present invention, please refer to Figures 2 to 10 、 Figures 12 to 14 , the fixing mechanism 6 comprises:

[0100] The double-arc sleeve 61 has its bottom end connected to the bottom plate 5. The double-arc sleeve 61 is composed of two sets of arc sleeves arranged coaxially with different diameters, and there is a gap between the two sets of arc sleeves;

[0101] The top plate 62 is in abutment with the top end of the double-arc sleeve 61, and the top plate 62 is connected to the feed pipe 3;

[0102] The clamping component 63 has one end connected to the bottom plate 5 and the other end connected to the top plate 62, and is used for fixing the winding roller 8;

[0103] The first rotating ring 64 is rotatably connected to the bottom plate 5;

[0104] The positioning component 65 has its bottom end rotatably connected to the first rotating ring 64 and is used for fixing the top plate 62;

[0105] The second rotating ring 66 is rotatably connected to the top plate 62 and is connected to the top end of the positioning component 65;

[0106] The four-side fixing component 67 is connected to the double-arc sleeve 61 and is in abutment with the filter cloth 9, and is used for fixing the four sides of the filter cloth 9.

[0107] The top plate 62 is abutted against the top of the double-arc sleeve 61. The clamping component 63 limits the position of the top plate 62, and the positioning component 65 fixes the top plate 62.

[0108] As an embodiment of the present invention, please refer to Figures 2 to 8 , the clamping component 63 includes:

[0109] The rotating clamping rod 631 has its bottom end rotatably connected to the bottom plate 5 and its top end abutted against the top plate 62. The rotating clamping rod 631 is coaxially arranged with the double-arc sleeve 61, and the rotating clamping rod 631 is slidably clamped with the winding roller 8;

[0110] The sliding clamping rod 632 is clamped to the top of the rotating clamping rod 631;

[0111] The rotating rod 633 passes through the top plate 62 and is rotatably connected thereto. The bottom end of the rotating rod 633 is connected to the sliding clamping rod 632.

[0112] The winding roller 8 is clamped together with the rotating clamping rod 631. The top plate 62 is abutted against the top end of the double-arc sleeve 61. The sliding clamping rod 632 is inserted into the rotating clamping rod 631 to limit the top plate 62, and the winding roller 8 can rotate synchronously with the rotation of the rotating rod 633.

[0113] As an embodiment of the present invention, please refer to Figure 2 , Figure 3 , Figure 8 and Figure 10 , the positioning component 65 includes:

[0114] The folding rod 651 has its bottom end rotatably connected to the rotating ring 64;

[0115] The sliding sleeve 652 is slidably connected to the top of the folding rod 651;

[0116] The first elastic member 653 has one end connected to the sliding sleeve 652 and the other end connected to the top end of the folding rod 651;

[0117] The clamping sleeve 654 is connected to the second rotating ring 66 and is clamped with the sliding sleeve 652.

[0118] After covering the top plate 62 on the top of the double-arc sleeve 61, press the sliding sleeve 652. The first elastic member 653 undergoes elastic deformation and rotates the folding rod 651, so that the sliding sleeve 652 and the clamping sleeve 654 are on the same straight line. Release the sliding sleeve 652. Under the action of the first elastic member 653, the sliding sleeve 652 is inserted into the clamping sleeve 654 to fix the top plate 62. The first elastic member 653 can be a spring, a spring sheet, etc.

[0119] As an embodiment of the present invention, please refer to Figures 2 to 5 、 Figure 13 and Figure 14 , the four-side fixing assembly 67 includes:

[0120] The connecting sleeve 671 is connected to the double-arc sleeve 61 and is internally communicated with the gap on the double-arc sleeve 61;

[0121] The sliding rod 672 is slidably connected to the connecting sleeve 671;

[0122] The connecting plate 674 is connected to the sliding rod 672;

[0123] The second elastic member 673 has one end connected to the double-arc sleeve 61 and the other end connected to the connecting plate 674. The second elastic member 673 is in a stretched state;

[0124] The arc plates 675 are provided in two groups and are located in the upper gap of the double-arc sleeve 61. The arc plates 675 are rotatably connected to the double-arc sleeve 61 and are in contact with the filter cloth 9;

[0125] The fixing plate 676, two groups of fixing plates 676 are connected to one group of the arc plates 675. The fixing plates 676 are respectively connected to the top and bottom of the arc plates 675. The fixing plates 676 are in contact with the filter cloth 9.

[0126] The second elastic member 673 is in a stretched state, causing the sliding rod 672 to move and squeeze the air in the gap between the connecting sleeve 671 and the double-arc sleeve 61, so that the arc plate 675 moves along the double-arc sleeve 61. The arc plate 675 abuts against the filter cloth 9 in the height direction to fix the filter cloth 9. At the same time, the arc plate 675 drives the fixing plate 676 to move, so that the fixing plate 676 abuts against the top and bottom of the filter cloth 9 in the length direction to fix the filter cloth 9. At the same time, the arc plate 675 and the fixing plate 676 can prevent liquid from flowing out from the periphery of the filter cloth 9, ensuring the filtering effect. The second elastic member 673 can be a spring, a spring sheet, etc.

[0127] As an embodiment of the present invention, please refer to Figure 2 , Figure 3 , Figure 8 and Figure 9 , the power assembly 71 includes:

[0128] A motor 711, connected to the top plate 62;

[0129] A first gear 712, connected to the output end of the motor 711;

[0130] A toothed ring 713, rotatably connected to the top plate 62 and connected to the second rotating ring 66. The toothed ring 713 meshes with the first gear 712.

[0131] The motor 711 drives the first gear 712 to rotate, the first gear 712 drives the toothed ring 713 to rotate, the toothed ring 713 drives the second rotating ring 66 to rotate, and under the drive of the positioning assembly 65, the first rotating ring 64 rotates synchronously.

[0132] As an embodiment of the present invention, please refer to Figures 2 to 5 , Figure 11 and Figure 12 , the sealing assembly 72 includes:

[0133] Fixed orifice plates 721, symmetrically arranged on both sides of the filter cloth 9, with the bottom end connected to the bottom plate 5, the two sides connected to the double-arc sleeve 61, and the top end abutting against the top plate 62. A number of groups of first water holes are opened on the fixed orifice plates 721;

[0134] Sliding orifice plates 722, slidingly abutted against the fixed orifice plates 721. The sliding orifice plates 722 penetrate through the bottom plate 5 and the top plate 62 and are slidably clamped thereto. A number of groups of second water holes are opened on the sliding orifice plates 722;

[0135] A third elastic member 723, with the top end connected to the bottom plate 5 and the bottom end connected to the sliding orifice plate 722;

[0136] First bevel arc plates 724, a number of groups of which are provided and arranged in a circumferential manner at equal intervals. One side of the first bevel arc plates 724 is a bevel structure;

[0137] The pressing wheel 1, 725 is connected to the rotating ring 1, 64.

[0138] During filtration, the first water hole and the second water hole are aligned, and the filter cloth 9 can be used for filtration. When the filter cloth 9 needs to be replaced, the rotating ring 1, 64 drives the pressing wheel 1, 725 to rotate. During the rotation of the pressing wheel 1, 725, it abuts against the hypotenuse side of the hypotenuse arc plate 1, 724 and squeezes it, causing the hypotenuse arc plate 1, 724 to drive the sliding orifice plate 722 to move upward, so that the second water hole intersects with the first water hole. At this time, a sealed space is formed among the sliding orifice plate 722, the first fixed orifice plate 721, the two double-arc sleeves 61, the bottom plate 5 and the top plate 62, and the liquid cannot enter this space, providing a sealed condition for the replacement of the filter cloth 9. After the replacement is completed, the pressing wheel 1, 725 disengages from the hypotenuse arc plate 1, 724, and under the reaction force of the third elastic member 723, the sliding orifice plate 722 returns to its original position. The third elastic member 723 can be a spring, a spring sheet, etc.

[0139] As an embodiment of the present invention, please refer to Figure 2 、 Figure 3 、 Figure 6 、 Figure 11 and Figure 12 , the liquid extraction assembly 73 includes:

[0140] A liquid extraction pump 731 is connected to the bottom plate 5. The input end of the liquid extraction pump 731 penetrates through the bottom plate 5 and is connected thereto. The penetration position is on the side of the filter cloth 9 close to the inner wall of the sealing chamber 1 and is between the fixed orifice plate 721 and the filter cloth 9;

[0141] A first sensing member 732 is connected to the top end of the sliding orifice plate 722;

[0142] A fixed rod 733 has its bottom end connected to the top plate 62;

[0143] A second sensing member 734 is connected to the top end of the fixed rod 733 and is located above the first sensing member 732;

[0144] A pressure balance pipe 735 has its bottom end penetrating through the top plate 62 and is connected thereto. The pressure balance pipe 735 is located between the filter cloth 9 and the fixed orifice plate 721.

[0145] The upward movement of the sliding orifice plate 722 drives the first sensing member 732 to move upward. When the sliding orifice plate 722 moves to the highest position, the first sensing member 732 contacts the second sensing member 734 to generate an electrical signal. The liquid extraction pump 731 receives the electrical signal and generates suction to extract the liquid in the sealed space. And since the liquid outlet position is on the side of the filter cloth 9 close to the inner wall of the sealing chamber 1, the extracted liquid can still be filtered through the filter cloth 9. The pressure balance pipe 735 ensures the air pressure balance in the sealed space. After the liquid extraction is completed, the liquid extraction pump 731 stops working.

[0146] As an embodiment of the present invention, please refer to Figure 2 , Figure 3 , Figure 13 and Figure 14 , the solid - releasing component 74 includes:

[0147] The second bevel - arc plate 741, which is connected to the connecting plate 674, and one end of the second bevel - arc plate 741 close to the connecting plate 674 is of a bevel structure;

[0148] The second pressing wheel 742, which is connected to the first rotating ring 64.

[0149] The first rotating ring 64 drives the second pressing wheel 742 to rotate. During the rotation of the second pressing wheel 742, it abuts against the bevel - side of the second bevel - arc plate 741 and squeezes it, driving the second bevel - arc plate 741 to move, and then pushing the connecting plate 674 to move, thereby driving the sliding rod 672 to slide in the connecting sleeve 671, reducing the air pressure in the gap between the connecting sleeve 671 and the double - arc sleeve 61, so that the arc plate 675 is separated from the filter cloth 9, releasing the fixation of the four - side fixing component 67 on the filter cloth 9; after the replacement of the filter cloth 9 is completed, the second pressing wheel 742 disengages from the second bevel - arc plate 741, and under the reaction force of the second elastic member 673, the arc plate 675 and the fixing plate 676 re - fix the filter cloth 9.

[0150] As an embodiment of the present invention, please refer to Figure 2 , Figure 3 , Figures 6 to 9 , the winding component 75 includes:

[0151] The toothed arc 751, which is connected to the second rotating ring 66;

[0152] The fixed sleeve 756, which is connected to the top plate 62 and is located on the top of the winding roller 8 around which the clean filter cloth 9 is wound;

[0153] The second gear 752, which is connected to the rotating rod 633 and is coaxially arranged with another group of winding rollers 8, and the second gear 752 meshes with the toothed arc 751;

[0154] The telescopic rod 753, one end of which is connected to the top plate 62;

[0155] The locking tooth 754, which is connected to the other end of the telescopic rod 753, and the locking tooth 754 is engaged with the second gear 752;

[0156] The fourth elastic member 755, one end of which is connected to the locking tooth 754 and the other end is connected to the telescopic rod 753;

[0157] The scroll spring 757, one end of which is connected to the rotating rod 633 and the other end is connected to the fixed sleeve 756.

[0158] After releasing the fixation of the filter cloth 9 by the four-sided fixing component 67, the second rotating ring 66 drives the tooth arc 751 to rotate until it meshes with the second gear 752, driving the second gear 752 to rotate. The second gear 752 drives the rotating rod 633 connected thereto to rotate. The lower part of this group of rotating rods 633 is connected to the winding roller 8 that has not wound the filter cloth 9 cleanly, driving this group of winding rollers 8 to rotate, and winding the blocked filter cloth 9 on its surface. The pulling effect of the filter cloth 9 causes the other group of winding rollers 8 wound with the clean filter cloth 9 to rotate synchronously, unwinding the clean filter cloth 9, thereby realizing the replacement of the filter cloth 9. The setting of the scroll spring 757 ensures that the filter cloth 9 is always in a taut state, ensuring the replacement effect. The setting of the engaging teeth 754 and the fourth elastic member 755 limits the second gear 752 to prevent the rotating rod 633 from rotating in the reverse direction under the reaction force of the scroll spring 757. The fourth elastic member 755 can be a spring, a spring sheet, etc.

[0159] The working principle of the present invention is as follows: The winding roller 8 is clamped with the rotating clamping rod 631, the filter cloth 9 is unfolded, the top plate 62 is abutted against the top end of the double-arc sleeve 61, the sliding clamping rod 632 is inserted into the rotating clamping rod 631 to limit the top plate 62. After covering the top plate 62 on the top of the double-arc sleeve 61, the sliding sleeve 652 is pressed, the first elastic member 653 undergoes elastic deformation, and the folding rod 651 is rotated, so that the sliding sleeve 652 and the clamping sleeve 654 are in the same straight line. The sliding sleeve 652 is released, and under the action of the first elastic member 653, the sliding sleeve 652 is inserted into the clamping sleeve 654 to fix the top plate 62. The arc plate 675 abuts against the filter cloth 9 in the height direction to fix the filter cloth 9. The fixing plate 676 abuts against the top and bottom of the filter cloth 9 in the length direction to fix the filter cloth 9. At the same time, the arc plate 675 and the fixing plate 676 can prevent the liquid from flowing out from the four sides of the filter cloth 9, ensuring the filtering effect. In the initial state, the first water hole and the second water hole are aligned, the liquid enters from the feed pipe 3, the filter cloth 9 filters the liquid, and the filtered liquid flows out from the discharge pipe 4;

[0160] As the filtration progresses, the filter cloth 9 becomes clogged with impurities and the filtration effect deteriorates. At this time, the motor 711 drives the first gear 712 to rotate, the first gear 712 drives the toothed ring 713 to rotate, the toothed ring 713 drives the second rotating ring 66 to rotate, and under the drive of the positioning assembly 65, the first rotating ring 64 rotates synchronously. The first rotating ring 64 drives the first pressing wheel 725 to rotate. During the rotation of the first pressing wheel 725, it abuts against the hypotenuse side of the first hypotenuse arc plate 724 and squeezes it, causing the first hypotenuse arc plate 724 to drive the sliding orifice plate 722 to move upward, so that the second water hole intersects with the first water hole. At this time, a closed space is formed among the sliding orifice plate 722, the first fixed orifice plate 721, the two double arc sleeves 61, the bottom plate 5 and the top plate 62, and the liquid cannot enter this space, providing a closed condition for the replacement of the filter cloth 9. The upward movement of the sliding orifice plate 722 drives the first sensing part 732 to move upward. When the sliding orifice plate 722 moves to the highest position, the first sensing part 732 contacts the second sensing part 734 to generate an electrical signal. The liquid extraction pump 731 receives the electrical signal and generates suction to extract the liquid in the closed space. And because the liquid outlet position is on the side of the filter cloth 9 close to the inner wall of the sealing chamber 1, the extracted liquid can still be filtered through the filter cloth 9. The pressure balance pipe 735 ensures the air pressure balance in the sealed space. After the liquid extraction is completed, the liquid extraction pump 731 stops working. The first rotating ring 64 drives the second pressing wheel 742 to rotate. When the liquid extraction is completed, the second pressing wheel 742 rotates to abut against the hypotenuse side of the second hypotenuse arc plate 741 and squeezes it, driving the second hypotenuse arc plate 741 to move, and then pushing the connecting plate 674 to move, thereby driving the sliding rod 672 to slide in the connecting sleeve 671, reducing the air pressure in the upper gap of the connecting sleeve 671 and the double arc sleeve 61, so that the arc plate 675 is separated from the filter cloth 9, releasing the fixation of the four-side fixing component 67 on the filter cloth 9. At this time, the second rotating ring 66 drives the toothed arc 751 to rotate to mesh with the second gear 752, driving the second gear 752 to rotate. The second gear 752 drives the rotating rod 633 connected thereto to rotate. The lower part of this group of rotating rods 633 is connected to the winding roller 8 that has not wound up the clogged filter cloth 9, driving this group of winding rollers 8 to rotate, winding the clogged filter cloth 9 on its surface. The pulling effect of the filter cloth 9 causes the other winding roller 8 wound with the clean filter cloth 9 to rotate synchronously, unwinding the clean filter cloth 9, thereby realizing the replacement of the filter cloth 9. The setting of the scroll spring 757 ensures that the filter cloth 9 is always in a taut state, ensuring the replacement effect;

[0161] After the replacement is completed, the second pressing wheel 742 disengages from the second hypotenuse arc plate 741. Under the reaction force of the second elastic part 673, the arc plate 675 and the fixing plate 676 fix the filter cloth 9 again. The first pressing wheel 725 disengages from the first hypotenuse arc plate 724. Under the reaction force of the third elastic part 723, the sliding orifice plate 722 returns to its original position, and the toothed arc 751 disengages from the second gear 752.

[0162] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0163] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A filtering device for pesticide production, comprising a sealing chamber, a sealing cover is detachably provided at the top of the sealing chamber, a discharge pipe is provided at the bottom of the sealing chamber, and the sealing cover is movably clamped with a feed pipe, characterized in that, Further comprising: A bottom plate, which is located inside the sealing chamber and connected thereto; Filter elements, several groups of which are provided and arranged in a circumferential manner at equal intervals for filtering liquid. One group of the filter elements includes: two winding rollers and a filter cloth. The bottom end of the winding roller abuts against the bottom plate, and both ends of the filter cloth are respectively connected to the two winding rollers and wound around one group of the winding rollers; A fixing mechanism, one end of which is connected to the bottom plate and the other end is connected to the winding roller for fixing the filter element; A filter cloth replacement mechanism for replacing the clogged filter cloth. The filter cloth replacement mechanism includes: A power assembly, which is connected to the fixing mechanism for driving the fixing mechanism to rotate; A sealing assembly, one end of which is connected to the fixing mechanism and the other end is connected to the bottom plate for cooperating with the fixing mechanism to seal the periphery of the filter cloth; A liquid pumping assembly, one end of which is connected to the fixing mechanism and the other end is connected to the sealing assembly for pumping out the liquid in the sealed space; A fixing release assembly, which is connected to the fixing mechanism for releasing the fixing of the filter cloth by the fixing mechanism; A winding assembly, which is connected to the fixing mechanism for driving the winding roller to rotate and replacing the filter cloth.

2. The filtering device for pesticide production according to claim 1, characterized in that, The fixing mechanism includes: A double arc sleeve, the bottom end of which is connected to the bottom plate. The double arc sleeve is composed of two arc sleeves arranged coaxially with different diameters, and there is a gap between the two arc sleeves; A top plate, which abuts against the top end of the double arc sleeve and is connected to the feed pipe; A clamping assembly, one end of which is connected to the bottom plate and the other end is connected to the top plate for fixing the winding roller; A first rotating ring, which is rotatably connected to the bottom plate; A positioning assembly, the bottom end of which is rotatably connected to the first rotating ring for fixing the top plate; A second rotating ring, which is rotatably connected to the top plate and connected to the top end of the positioning assembly; A four-side fixing assembly, which is connected to the double arc sleeve and abuts against the filter cloth for fixing the four sides of the filter cloth.

3. A filtering device for pesticide production according to claim 2, characterized in that, The clamping assembly includes: A rotating clamping rod, the bottom end of which is rotatably connected to the bottom plate and the top end of which abuts against the top plate. The rotating clamping rod is coaxially arranged with the double arc sleeve and is slidably clamped with the winding roller; A sliding clamping rod, which is clamped with the top of the rotating clamping rod; A rotating rod, which penetrates through the top plate and is rotatably connected thereto. The bottom end of the rotating rod is connected to the sliding clamping rod.

4. The filtering device for pesticide production according to claim 2, wherein The positioning assembly includes: A folding rod, the bottom end of which is rotatably connected to the first rotating ring; A sliding sleeve, which is slidably connected to the top of the folding rod; A first elastic member, one end of which is connected to the sliding sleeve and the other end is connected to the top end of the folding rod; A clamping sleeve, which is connected to the second rotating ring and is clamped with the sliding sleeve.

5. The filtering device for pesticide production according to claim 2, wherein, The four-side fixing assembly includes: A connecting sleeve, which is connected to the double arc sleeve and internally communicates with the gap on the double arc sleeve; A sliding rod, which is slidably connected to the connecting sleeve; A connecting plate, which is connected to the sliding rod; A second elastic member, one end of which is connected to the double arc sleeve and the other end is connected to the connecting plate. The second elastic member is in a stretched state; Arc plates, two groups of which are provided and located in the gap on the double arc sleeve. The arc plates are rotatably connected to the double arc sleeve and abut against the filter cloth; Fixing plates, two groups of fixing plates are connected to one group of the arc plates. The fixing plates are respectively connected to the top and bottom of the arc plate and abut against the filter cloth.

6. The filtering device for pesticide production according to claim 2, characterized in that, The power assembly includes: A motor, which is connected to the top plate; A first gear, which is connected to the output end of the motor; The tooth ring is rotatably connected to the top plate and is connected to the second rotating ring. The tooth ring meshes with the first gear.

7. The filtering device for pesticide production according to claim 2, characterized in that, The sealing assembly includes: Fixed orifice plates are symmetrically arranged on both sides of the filter cloth, and the bottom ends are connected to the bottom plate. The two sides are connected to the double-arc sleeves, and the top ends are in contact with the top plate. A number of groups of first water holes are provided on the fixed orifice plates; A sliding orifice plate is in sliding contact with the fixed orifice plate. The sliding orifice plate penetrates through the bottom plate and the top plate and is slidably clamped thereto. A number of groups of second water holes are provided on the sliding orifice plate; The third elastic member has its top end connected to the bottom plate and its bottom end connected to the sliding orifice plate; The first bevel arc plate has a number of groups, and is arranged in a circumferential array at equal intervals. One side of the first bevel arc plate is a bevel structure; The first pressing wheel is connected to the first rotating ring.

8. A filtering device for pesticide production according to claim 7, characterized in that, The liquid pumping assembly includes: A liquid pump is connected to the bottom plate. The input end of the liquid pump penetrates through the bottom plate and is connected thereto. The penetration position is on the side of the filter cloth close to the inner wall of the sealing chamber and is between the fixed orifice plate and the filter cloth; The first sensing member is connected to the top end of the sliding orifice plate; A fixed rod has its bottom end connected to the top plate; The second sensing member is connected to the top end of the fixed rod and is located above the first sensing member; A pressure balance pipe has its bottom end penetrating through the top plate and is connected thereto. The pressure balance pipe is located between the filter cloth and the fixed orifice plate.

9. The filtering device for pesticide production according to claim 5, wherein, The fixing release assembly includes: The second bevel arc plate is connected to the connecting plate. The end of the second bevel arc plate close to the connecting plate is a bevel structure; The second pressing wheel is connected to the first rotating ring.

10. A filtering device for pesticide production according to claim 3, characterized in that, The winding assembly includes: A tooth arc is connected to the second rotating ring; A fixed sleeve is connected to the top plate and is located above the winding roller around which the clean filter cloth is wound; A second gear is connected to the rotating rod and is coaxially arranged with another winding roller. The second gear meshes with the tooth arc; A telescopic rod has one end connected to the top plate; A locking tooth is connected to the other end of the telescopic rod. The locking tooth is clamped with the second gear; The fourth elastic member has one end connected to the locking tooth and the other end connected to the telescopic rod; A scroll spring has one end connected to the rotating rod and the other end connected to the fixed sleeve.

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