Retractable filter plates for disc filters

Abstract

The present invention discloses a retractable filter plate for a disc filter in the field of disc filters, comprising a connecting seat and a connecting joint plate, wherein the connecting seat outer wall is integrally formed with the connecting joint plate, the top of the connecting seat is fixedly connected with a fixed chain plate, the fixed chain plate is a hollow structure, a driven shaft is arranged at the upper middle position of the fixed chain plate, a power shaft is rotatably connected to the connecting seat, a main sprocket is keyed to the power shaft, and a driven sprocket is keyed to the driven shaft. The present invention provides a movable chain plate that can rotate along the fixed chain plate, and can drive a support rod to pull the movable chain plate to rotate by means of sprocket and chain transmission, so that the fixed chain plate and the movable chain plate are retracted together to form a square structure with equal width from top to bottom, and the filter bag on the filter plate can be installed without disassembling the filter plate, which can greatly save the installation time of the filter bag, thereby improving the replacement efficiency of the filter bag and improving the efficiency.

Description

Technical Field

[0001] The invention relates to the field of disc filters, in particular to a telescopic filter plate for a disc filter. Background Art

[0002] Disc filter is an indispensable device for conveying medium pipelines. It is usually installed at the inlet of pressure reducing valves, pressure relief valves, water level valves or other equipment to remove impurities in the medium to protect the normal use of valves and equipment. When the fluid enters the filter cartridge with a certain specification of filter screen, its impurities are blocked, and the clean filtrate is discharged from the filter outlet. When cleaning is required, just take out the detachable filter cartridge, treat it and reinstall it. Therefore, it is extremely convenient to use and maintain.

[0003] The filter plate of the disc filter needs to be covered with a filter bag before it can be used. During the filtering process, the filter bag needs to be replaced regularly. Most existing filter plates are fan-shaped structures. When the filter bag is replaced, the filter plate needs to be disassembled. The filter plate is heavy, and the installation and disassembly process requires a lot of manpower and material resources, and is time-consuming. Therefore, those skilled in the art provide a retractable filter plate for a disc filter to solve the problems raised in the above background technology. Summary of the invention

[0004] The object of the present invention is to provide a retractable filter plate for a disc filter to solve the problems mentioned in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A retractable filter plate for a disc filter comprises a connecting seat and a connecting joint plate, wherein a connecting joint plate is integrally formed on the outer wall of the connecting seat, a fixed chain plate is fixedly connected to the top of the connecting seat, the fixed chain plate is a hollow structure, a driven shaft is arranged at the upper middle part of the fixed chain plate, a power shaft is rotatably connected to the connecting seat, a main sprocket is keyed to the power shaft, a driven sprocket is keyed to the driven shaft, a chain is connected between the main sprocket and the driven sprocket, a movable chain plate is arranged on at least one side of the fixed chain plate, a storage groove is arranged inside the movable chain plate, and air holes are evenly arranged on the movable chain plate and the fixed chain plate.

[0007] As a further solution of the present invention: the power shaft is arranged to penetrate the fixed chain plate, and both ends of the driven sprocket are located inside the fixed chain plate.

[0008] As a further solution of the present invention: a power input hexagon socket is integrally formed at one end of the power shaft, and the power shaft is connected to a ratchet through a key at one end of the power input hexagon socket.

[0009] As a further solution of the present invention: the movable chain plate is arranged on one side of the fixed chain plate, the movable chain plate is rotatably connected to the connecting seat through the power shaft, a guide rail is fixedly installed on the inner wall of the movable chain plate, a T-shaped groove is provided on the guide rail, a movable slider is slidably connected inside the T-shaped groove on the guide rail, the movable slider is a T-shaped structure, limiting guide grooves are provided on the opposite side walls of the fixed chain plate, the limiting guide grooves are arc structures, a positioning shaft penetrating the limiting guide groove is fixedly connected to the inner wall of the movable chain plate, and the positioning shaft adopts a T-shaped pin.

[0010] As a further solution of the present invention: a support rod is connected between the movable slider and the driven shaft, a support shaft is provided between the support rod and the movable slider, the support rod and the movable slider are rotationally connected via the support shaft, and the support rod and the driven shaft are connected via a key.

[0011] As a further solution of the present invention: the power shaft passes through the movable chain plate, a locking positioning piece is arranged on the connecting seat at one side of the ratchet wheel, and the locking positioning piece is rotationally connected to the connecting seat through a positioning piece pin.

[0012] As a further solution of the present invention: movable chain plates are arranged on both sides of the fixed chain plate, a hinge shaft is arranged between the two movable chain plates and the fixed chain plate, and the movable chain plate is rotatably connected to the fixed chain plate through the hinge shaft.

[0013] As a further solution of the present invention: a support rod is connected between the driven shaft inside the fixed chain plate and the movable sliders inside the two movable chain plates, the support rod is key-connected to the driven shaft, and the support rod is rotationally connected to the movable slider via a support shaft.

[0014] As a further solution of the present invention: the storage groove cavity inside the movable chain plate is larger than the outer shape of the fixed chain plate, and limiting guide grooves are provided on both sides of the opposite sides of the fixed chain plate, and the limiting guide grooves are arc structures. Positioning shafts that pass through the limiting guide grooves are fixedly connected to the inner walls of the two movable chain plates, and the positioning shafts use T-pins.

[0015] As a further solution of the present invention: a locking positioning piece is provided on the connecting seat at one side of the ratchet wheel, and the locking positioning piece is rotationally connected to the connecting seat via a positioning piece pin.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention provides a movable chain plate that can rotate along the fixed chain plate, and can drive the support rod to pull the movable chain plate to rotate through the sprocket and chain transmission, so that the fixed chain plate and the movable chain plate are gathered together to form a square structure with equal width at the top and bottom. The installation operation of the filter bag on the filter plate can be completed without disassembling the filter plate, which can greatly save the installation time of the filter bag and thus improve the replacement efficiency of the filter bag and improve the efficiency. At the same time, the cooperation of the limiting guide groove and the positioning shaft can not only provide guidance for the rotation of the movable chain plate, but also reinforce the edge of the movable chain plate and enhance the rigidity to prevent the edge from being uneven and deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0019] Figure 2 is a cross-sectional view of embodiment 1 of the present invention;

[0020] Figure 3 Embodiment 1 of the present invention Figure 1 A partial enlarged view of the middle A;

[0021] Figure 4 A diagram showing the connection relationship between the guide rail, the movable slider and the support rod in Example 1 of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0023] Figure 6 is a cross-sectional view of embodiment 2 of the present invention;

[0024] Figure 7 It is a partial right sectional view of the fixed chain plate and the movable chain plate at the positioning shaft in the present invention.

[0025] In the figure: 1. connecting seat; 2. connecting joint plate; 3. fixed chain plate; 4. movable chain plate; 5. ventilation hole; 6. storage groove; 7. power shaft; 8. driven shaft; 9. main sprocket; 10. driven sprocket; 11. guide rail; 12. movable slider; 13. support rod; 14. supporting shaft; 15. power input hexagon socket; 16. ratchet; 17. locking locating piece; 18. locating piece pin shaft; 19. hinge shaft; 20. chain; 21. limit guide groove; 22. locating shaft. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figures 1 to 7 In the embodiment of the present invention, the retractable filter plate for the disc filter comprises a connecting seat 1 and a connecting joint plate 2. The connecting joint plate 2 is integrally formed on the outer wall of the connecting seat 1. A fixed chain plate 3 is fixedly connected to the top of the connecting seat 1. The fixed chain plate 3 is a hollow structure. A driven shaft 8 is arranged at the upper middle part of the fixed chain plate 3. A power shaft 7 is rotatably connected to the connecting seat 1. A main sprocket 9 is keyed to the power shaft 7. A driven sprocket 10 is keyed to the driven shaft 8. A chain 20 is connected between the main sprocket 9 and the driven sprocket 10. A movable chain plate 4 is arranged on at least one side of the fixed chain plate 3. A receiving groove 6 is provided inside the movable chain plate 4. Air vents 5 are evenly provided on the movable chain plate 4 and the fixed chain plate 3. The receiving groove 6 can conveniently receive the fixed chain plate 3. The main sprocket 9, the chain 20 and the driven sprocket 10 are used to transmit power, thereby driving the driven sprocket 10 to rotate.

[0028] Among them, the power shaft 7 is set through the fixed chain plate 3, the two ends of the driven sprocket 10 are located inside the fixed chain plate 3, one end of the power shaft 7 is integrally formed with a power input hexagon socket 15, and the power shaft 7 is located at one end of the power input hexagon socket 15 and is connected to a ratchet 16 through a key. The power shaft 7 can be driven to rotate by inserting an external stirring handle into the power input hexagon socket 15.

[0029] The cavity of the receiving groove 6 inside the movable chain plate 4 is larger than the outer shape of the fixed chain plate 3 .

[0030] Example 1

[0031] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7A movable chain plate 4 is arranged on one side of the fixed chain plate 3, and the movable chain plate 4 is rotatably connected to the connecting seat 1 through the power shaft 7. A guide rail 11 is fixedly installed on the inner wall of the movable chain plate 4, and a T-shaped slide groove is provided on the guide rail 11. A movable slider 12 is slidably connected inside the T-shaped slide groove on the guide rail 11. The movable slider 12 is a T-shaped structure. A support rod 13 is connected between the movable slider 12 and the driven shaft 8. A support shaft 14 is arranged between the support rod 13 and the movable slider 12. The support rod 13 is rotatably connected to the movable slider 12 through the support shaft 14. The support rod 13 is connected to the driven shaft 8 through a key. The external power belt The dynamic power shaft 7 rotates, and can drive the driven shaft 8 to rotate under the transmission of the main sprocket 9, the chain 20 and the driven sprocket 10, and then drive the support rod 13 to rotate, and then drive the movable slider 12 to slide inside the guide slide rail 11, which can drive the movable chain plate 4 to rotate toward the fixed chain plate 3, so that the movable chain plate 4 can be retracted on the periphery of the fixed chain plate 3, and then the movable chain plate 4 and the fixed chain plate 3 form a square structure with equal widths in the upper and lower parts. The installation operation of the filter bag on the filter plate can be completed without disassembling the filter plate, which can greatly save the installation time of the filter bag, thereby improving the replacement efficiency of the filter bag and improving efficiency.

[0032] Among them, the power shaft 7 is arranged through the movable chain plate 4, and a locking positioning piece 17 is arranged on the connecting seat 1 on one side of the ratchet 16. The locking positioning piece 17 and the connecting seat 1 are rotatably connected through the positioning piece pin shaft 18. Under the action of the torsion spring, the handle can be inserted into the power input hexagon socket 15 to drive the rotating shaft to one side, so that the locking positioning piece 17 is always engaged with the ratchet, thereby making the rotation of the power shaft 7 have the function of anti-locking.

[0033] Among them, limiting guide grooves 21 are provided on the two opposite side walls of the fixed chain plate 3, and the limiting guide groove 21 is a C-arc structure. A positioning shaft 22 that passes through the limiting guide groove 21 is fixedly connected to the inner wall of the movable chain plate 4. The positioning shaft 22 adopts a T-pin. The limiting guide groove 21 and the positioning shaft 22 cooperate with each other, which can not only provide guidance for the rotation of the movable chain plate 4, but also reinforce the edge of the movable chain plate 4 and enhance the rigidity to prevent the edge from being uneven and deformed.

[0034] Example 2

[0035] See also Figures 5 to 7 , movable chain plates 4 are arranged on both sides of the fixed chain plate 3, and a hinge shaft 19 is arranged between the two movable chain plates 4 and the fixed chain plate 3. The movable chain plates 4 are rotatably connected to the fixed chain plates 3 through the hinge shaft 19, which can ensure that the movable chain plates 4 can flexibly rotate along the hinge shaft 19 on the fixed chain plates 3.

[0036] Among them, a support rod 13 is connected between the driven shaft 8 inside the fixed chain plate 3 and the movable slider 12 inside the two movable chain plates 4. The support rod 13 is key-connected to the driven shaft 8, and the support rod 13 is rotationally connected to the movable slider 12 through a support shaft 14.

[0037] Among them, a locking positioning piece 17 is arranged on one side of the ratchet 16 on the connecting seat 1, and the locking positioning piece 17 is rotatably connected with the connecting seat 1 through the positioning piece pin shaft 18 arranged therebetween, so that the power shaft 7 can be driven to rotate by external power, and the driven shaft 8 can be driven to rotate under the transmission of the main sprocket 9, the chain 20 and the driven sprocket 10, thereby driving the support rod 13 to rotate, and then driving the movable sliding blocks 12 at both ends of the support rod 13 to slide inside the guide slide rails 11 inside the two movable chain plates 4, so that the two movable chain plates 4 can be driven to rotate toward the fixed chain plate 3 side, so that the movable chain plates 4 can be retracted on the periphery of the fixed chain plates 3, so that the movable chain plates 4 and the fixed chain plates 3 form a square structure with equal widths in the upper and lower parts, and the installation operation of the filter bag on the filter plate can be completed without disassembling the filter plate, which can greatly save the installation time of the filter bag, thereby improving the replacement efficiency of the filter bag and improving the efficiency.

[0038] Among them, the fixed chain plate 3 is provided with limiting guide grooves 21 on both sides of the opposite sides, and the limiting guide grooves 21 are of arc structure. The inner walls of the two movable chain plates 4 are fixedly connected with positioning shafts 22 that penetrate the limiting guide grooves 21. The positioning shafts 22 adopt T-pins. The limiting guide grooves 21 and the positioning shafts 22 cooperate with each other, which can not only provide guidance for the rotation of the movable chain plates 4, but also reinforce the edges of the movable chain plates 4 and enhance the rigidity to prevent the edges from being uneven and deformed.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A retractable filter plate for a disc filter, comprising a connecting seat (1) and a connecting joint plate (2), characterized in that: A connecting joint plate (2) is integrally formed on the outer wall of the connecting seat (1); a fixed chain plate (3) is fixedly connected to the top of the connecting seat (1); the fixed chain plate (3) is a hollow structure; a driven shaft (8) is arranged at the upper middle part of the fixed chain plate (3); a power shaft (7) is rotatably connected to the connecting seat (1); a main sprocket (9) is keyed to the power shaft (7); a driven sprocket (10) is keyed to the driven shaft (8); a chain (20) is connected between the main sprocket (9) and the driven sprocket (10); and the fixed chain A movable chain plate (4) is provided on at least one side of the plate (3), a receiving groove (6) is provided inside the movable chain plate (4), and air holes (5) are evenly provided on the movable chain plate (4) and the fixed chain plate (3); the power shaft (7) passes through the fixed chain plate (3), and both ends of the driven sprocket (10) are located inside the fixed chain plate (3); one end of the power shaft (7) is integrally formed with a power input hexagon socket (15), and the end of the power shaft (7) located at the power input hexagon socket (15) is connected to a ratchet (16) through a key; The movable chain plate (4) is arranged on one side of the fixed chain plate (3), and the movable chain plate (4) is rotatably connected to the connecting seat (1) via the power shaft (7). A guide rail (11) is fixedly installed on the inner wall of the movable chain plate (4), and a T-shaped slide groove is provided on the guide rail (11). A movable slider (12) is slidably connected inside the T-shaped slide groove on the guide rail (11), and the movable slider (12) is a T-shaped structure. The fixed chain plate (3) is provided with a limited guide groove (21) on both opposite side walls, and the limited guide groove (21) ) is an arc structure, a positioning shaft (22) penetrating the limiting guide groove (21) is fixedly connected to the inner wall of the movable chain plate (4), and the positioning shaft (22) adopts a T-pin; a support rod (13) is connected between the movable slider (12) and the driven shaft (8), and a support shaft (14) is provided between the support rod (13) and the movable slider (12), the support rod (13) and the movable slider (12) are rotatably connected via the support shaft (14), and the support rod (13) and the driven shaft (8) are connected via a key.

2. The retractable filter plate for a disc filter according to claim 1, characterized in that: The power shaft (7) is arranged to penetrate the movable chain plate (4), and a locking positioning piece (17) is arranged on the connection seat (1) at one side of the ratchet wheel (16), and the locking positioning piece (17) is rotatably connected to the connection seat (1) via a positioning piece pin (18).

3. The retractable filter plate for a disc filter according to claim 1, characterized in that: Movable chain plates (4) are provided on both sides of the fixed chain plate (3), a hinge shaft (19) is provided between the two movable chain plates (4) and the fixed chain plate (3), and the movable chain plates (4) and the fixed chain plate (3) are rotatably connected via the hinge shaft (19).

4. The retractable filter plate for a disc filter according to claim 3, characterized in that: A support rod (13) is connected between the driven shaft (8) inside the fixed chain plate (3) and the movable sliders (12) inside the two movable chain plates (4); the support rod (13) is key-connected to the driven shaft (8); and the support rod (13) is rotationally connected to the movable slider (12) via a support shaft (14).

5. The retractable filter plate for a disc filter according to claim 3, characterized in that: The cavity of the receiving groove (6) inside the movable chain plate (4) is larger than the outer shape of the fixed chain plate (3); two opposite sides of the fixed chain plate (3) are provided with limit guide grooves (21); the limit guide grooves (21) are of arc structure; the inner walls of the two movable chain plates (4) are fixedly connected with positioning shafts (22) penetrating the limit guide grooves (21); the positioning shafts (22) are T-shaped pins.

6. The retractable filter plate for a disc filter according to claim 5, characterized in that: A locking positioning piece (17) is provided on the connection seat (1) at one side of the ratchet wheel (16), and the locking positioning piece (17) is rotatably connected to the connection seat (1) via a positioning piece pin (18).

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