Screen device with multi-stage filtering function

Abstract

The utility model relates to the technical field of fertilizer filtering devices, and provides a screen device with a multi-stage filtering function, which comprises a screening assembly, the screening assembly comprises a screening box, an inner cavity, a first discharge door, a second discharge door, a feed hopper, a preformed groove and a discharge pipe, the inner cavity is arranged in the screening box, and the first discharge door is arranged in the inner cavity. A first discharging door is hinged to one side of the bottom of the screening box, and a second discharging door is hinged to the side, close to the first discharging door, of the top of the screening box. By arranging the swing structure, the electric push rod is started, the electric push rod stretches out and draws back to drive the swing frame to move up and down, the swing frame can drive the second screen plate and the first screen plate to swing up and down in the swing groove through the supporting pulleys when moving up and down, and the screening efficiency of the second screen plate and the first screen plate is improved; the screen mesh device has the function of facilitating swinging screening, and the working efficiency of the screen mesh device in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fertilizer filtering devices, in particular to a screen device with multi-stage filtering functions. Background Art

[0002] As an important means of separating substances, filtration technology is widely used in various industrial fields. With the continuous advancement of industrialization, the requirements for filtration technology are becoming higher and higher. It is not only required to be able to remove impurities efficiently, but also to ensure the stability and reliability of the filtration process. Therefore, it is necessary to design a screen device with multi-stage filtration function;

[0003] To this end, the patent with announcement number CN220194254U discloses a filter device with a multi-stage filtering function, including a filter device body, a sedimentation box is provided on the side wall of the filter device body, a through groove is provided on the side wall of the sedimentation box, an observation window is fixedly connected to the interior of the through groove, a silt discharge groove is provided on the bottom of the outer wall of the sedimentation box, a door panel is rotatably connected to the inner wall of the silt discharge groove, and the door panel is matched with the silt discharge groove. This filter device with a multi-stage filtering function, by providing a through groove on the side wall of the sedimentation box and providing an observation window in the through groove, is designed so that the staff can observe the situation inside the sedimentation box during use, and can clean the impurities and sludge inside the sedimentation box in a timely manner without affecting the water pipe and affecting the normal use of the filter device body.

[0004] When the above-mentioned filter device is filtering, the material is easily clogged in the holes inside the filter plate, and the filtration efficiency is low. Therefore, it is necessary to design a swingable multi-stage filtration function screen device to increase the mobility of the material, improve the screening effect of the material, and reduce the possibility of clogging. Utility Model Content

[0005] The utility model aims to provide a screen device with multi-stage filtering function, so as to solve the defect of the existing filtering device that materials are easily blocked in the holes inside the filter plate during filtering, resulting in low filtering efficiency.

[0006] In order to solve the above technical problems, the present utility model provides the following technical solutions: a screen device with multi-stage filtering function, comprising a screening assembly;

[0007] The screening assembly includes a screening box, an inner cavity, a first discharge door, a second discharge door, a feed hopper, a reserved slot and a discharge pipe. The inner cavity is opened inside the screening box, the first discharge door is hinged on one side of the bottom of the screening box, the second discharge door is hinged on the side of the top of the screening box close to the first discharge door, and the reserved slots are evenly opened on the side of the screening box away from the second discharge door;

[0008] A screening structure is provided inside the inner cavity;

[0009] A swing structure is fixed on one side of the screening box close to the reserved slot, and the swing structure includes a swing frame, a swing slot, a support pulley and an electric push rod. The electric push rod is evenly fixed on the outer wall of the bottom of the screening box close to the reserved slot. The top of the electric push rod is fixed with a swing frame, and the inside of the swing frame is evenly provided with swing slots, and support pulleys are evenly fixed on the inner wall of the swing frame inside the swing slot.

[0010] Furthermore, a feed hopper is fixed on the top of the screening box, and a discharge pipe is fixed on one side of the bottom end of the screening box.

[0011] Furthermore, the screening structure includes a second sieve plate, a first sieve plate, second sieve holes and first sieve holes, the second sieve plate is arranged at the bottom of the inner cavity, the first sieve plate is arranged at the top of the inner cavity, the second sieve plate is evenly provided with second sieve holes, and the first sieve plate is evenly provided with first sieve holes.

[0012] Furthermore, one end of the second sieve plate and the first sieve plate are both hingedly connected to the inner wall of the screening box, and the second sieve holes are distributed at equal intervals inside the second sieve plate.

[0013] Furthermore, one end of the second sieve plate and the first sieve plate passes through the reserved groove and the swing groove and extends to the outside of the swing frame.

[0014] Furthermore, the first sieve holes are distributed at equal intervals inside the first sieve plate, and the inner diameter of the first sieve holes is larger than the inner diameter of the second sieve holes.

[0015] Furthermore, the support pulleys are symmetrically distributed on both sides of the swing frame, and the top ends of the support pulleys respectively conflict with the bottom ends of the second sieve plate and the bottom ends of the first sieve plate.

[0016] The utility model provides a screen device with multi-stage filtering function, which has the following advantages:

[0017] By providing a swing structure, starting the electric push rod, the electric push rod will extend and retract to drive the swing frame to move up and down. When the swing frame moves up and down, it can drive the second screen plate and the first screen plate to swing up and down inside the swing groove through the supporting pulley, thereby improving the screening efficiency of the second screen plate and the first screen plate, realizing the function of facilitating swing screening of the device and improving the working efficiency of the screening device when in use;

[0018] By providing a screening structure, the fertilizer can be primarily screened through the first sieve hole to remove large particles, and the second sieve plate can perform secondary screening on the fertilizer to screen out small particles, thereby achieving the purpose of multi-stage screening. The device has a multi-stage screening function and improves the screening efficiency of the screen device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0021] Figure 3 It is a side cross-sectional structural schematic diagram of the utility model;

[0022] Figure 4 This is a schematic diagram of a three-dimensional structure of a top view cross section of the present invention;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the main cross-section of the present invention.

[0024] Explanation of the reference numerals in the figure: 1. Screening assembly; 11. Screening box; 12. Inner cavity; 13. First discharge door; 14. Second discharge door; 15. Feed hopper; 16. Reserved slot; 17. Discharge pipe; 2. Screening structure; 21. Second screen plate; 22. First screen plate; 23. Second screen hole; 24. First screen hole; 3. Swinging structure; 31. Swinging frame; 32. Swinging slot; 33. Support pulley; 34. Electric push rod. DETAILED DESCRIPTION

[0025] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 5 The utility model provides a screen device with multi-stage filtering function, including a screening component 1.

[0027] Reference Figure 1-Figure 5The screening assembly 1 includes a screening box 11, an inner cavity 12, a first discharge door 13, a second discharge door 14, a feed hopper 15, a reserved slot 16 and a discharge pipe 17. The inner cavity 12 is opened inside the screening box 11, and the first discharge door 13 is hinged on one side of the bottom of the screening box 11. The second discharge door 14 is hinged on the side of the top of the screening box 11 close to the first discharge door 13. The reserved slots 16 are evenly opened on the side of the screening box 11 away from the second discharge door 14. The feed hopper 15 is fixed on the top of the screening box 11, and the discharge pipe 17 is fixed on one side of the bottom of the screening box 11. The inner cavity 12 is provided with a screening structure 2, and the screening structure 2 includes a second sieve plate 21, a first sieve plate 22, a second sieve hole 23 and The first sieve hole 24 and the second sieve plate 21 are arranged at the bottom of the inner cavity 12, and the first sieve plate 22 is arranged at the top of the inner cavity 12. The second sieve holes 23 are evenly opened inside the second sieve plate 21, and the first sieve holes 24 are evenly opened inside the first sieve plate 22. One end of the second sieve plate 21 and the first sieve plate 22 are hingedly connected to the inner wall of the screening box 11. The second sieve holes 23 are evenly distributed inside the second sieve plate 21. One end of the second sieve plate 21 and the first sieve plate 22 pass through the reserved groove 16 and the swing groove 32 and extend to the outside of the swing frame 31. The first sieve holes 24 are evenly distributed inside the first sieve plate 22, and the inner diameter of the first sieve hole 24 is larger than the inner diameter of the second sieve hole 23.

[0028] The fertilizer can be primarily screened through the first sieve hole 24 to remove large particles, and the second sieve plate 21 can perform secondary screening on the fertilizer to screen out small particles, thereby achieving the purpose of multi-stage screening.

[0029] Reference Figure 1 、 Figure 2 、 Figure 4 and Figure 5 A swing structure 3 is fixed to the side of the screening box 11 near the reserved slot 16. The swing structure 3 includes a swing frame 31, a swing slot 32, a support pulley 33 and an electric push rod 34. The electric push rod 34 is evenly fixed on the outer wall of the bottom of the screening box 11 near the reserved slot 16. The top of the electric push rod 34 is fixed with a swing frame 31. The inside of the swing frame 31 is evenly provided with swing slots 32. Support pulleys 33 are evenly fixed on the inner wall of the swing frame 31 inside the swing slot 32. The support pulleys 33 are symmetrically distributed on both sides of the swing frame 31. The top of the support pulley 33 respectively conflicts with the bottom end of the second sieve plate 21 and the bottom end of the first sieve plate 22.

[0030] Connect an external power supply to start the electric push rod 34. The extension and retraction of the electric push rod 34 will drive the swing frame 31 to move up and down. When the swing frame 31 moves up and down, it can drive the second sieve plate 21 and the first sieve plate 22 to swing up and down inside the swing groove 32 through the supporting pulley 33, thereby improving the screening efficiency of the second sieve plate 21 and the first sieve plate 22.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A screen device with multi-stage filtering function, comprising a screening assembly (1); Its characteristics are: The screening assembly (1) comprises a screening box (11), an inner cavity (12), a first discharge door (13), a second discharge door (14), a feed hopper (15), a reserved slot (16) and a discharge pipe (17); the inner cavity (12) is provided inside the screening box (11); the first discharge door (13) is hingedly connected to one side of the bottom of the screening box (11); the second discharge door (14) is hingedly connected to the top of the screening box (11) near the first discharge door (13); and the reserved slots (16) are evenly provided on the side of the screening box (11) away from the second discharge door (14); A screening structure (2) is provided inside the inner cavity (12); A swing structure (3) is fixed on one side of the screening box (11) close to the reserved slot (16), and the swing structure (3) includes a swing frame (31), a swing slot (32), a support pulley (33) and an electric push rod (34). The electric push rod (34) is evenly fixed on the outer wall of the bottom of the screening box (11) close to the reserved slot (16). The top of the electric push rod (34) is fixed with a swing frame (31). The inside of the swing frame (31) is evenly provided with a swing slot (32), and the support pulley (33) is evenly fixed on the inner wall of the swing frame (31) inside the swing slot (32).

2. A screen device with multi-stage filtering function according to claim 1, characterized in that: A feed hopper (15) is fixed on the top of the screening box (11), and a discharge pipe (17) is fixed on one side of the bottom end of the screening box (11).

3. The screen device with multi-stage filtering function according to claim 1, characterized in that: The screening structure (2) comprises a second sieve plate (21), a first sieve plate (22), second sieve holes (23) and first sieve holes (24); the second sieve plate (21) is arranged at the bottom of the inner cavity (12); the first sieve plate (22) is arranged at the top of the inner cavity (12); the second sieve holes (23) are uniformly provided inside the second sieve plate (21); and the first sieve holes (24) are uniformly provided inside the first sieve plate (22).

4. The screen device with multi-stage filtering function according to claim 3, characterized in that: One end of the second sieve plate (21) and the first sieve plate (22) are both hingedly connected to the inner wall of the screening box (11), and the second sieve holes (23) are distributed at equal intervals inside the second sieve plate (21).

5. The screen device with multi-stage filtering function according to claim 3, characterized in that: One end of each of the second sieve plate (21) and the first sieve plate (22) passes through the reserved groove (16) and the swing groove (32) and extends to the outside of the swing frame (31).

6. The screen device with multi-stage filtering function according to claim 3, characterized in that: The first sieve holes (24) are distributed at equal intervals inside the first sieve plate (22), and the inner diameter of the first sieve holes (24) is larger than the inner diameter of the second sieve holes (23).

7. The screen device with multi-stage filtering function according to claim 1, characterized in that: The support pulleys (33) are symmetrically distributed on both sides of the swing frame (31), and the top ends of the support pulleys (33) respectively contact the bottom ends of the second sieve plate (21) and the bottom ends of the first sieve plate (22).

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