Anti-blocking polyurethane sieve plate

Abstract

The utility model discloses a kind of anti-blocking polyurethane screen plate, it is related to material screening relevant technical field.The utility model includes screening assembly, screening assembly includes frame, frame upper surface is fixed with screen one, screen two is set in the frame inner chamber, and adjusting assembly is set on the frame;Adjusting assembly includes rack fixed in screen two one angle, gear is rotatably connected with rack in the frame inner chamber;Frame one side angle is also provided with sub-cavity, knob is rotatably connected in sub-cavity.The utility model is provided with screening assembly and adjusting assembly, when screen plate is blocked, push button, button is dragged buckle by steel wire rope, so that buckle is separated from ratchet, at this time, screen two will be rebounded under the action of spring rod, so that overall aperture is increased, so that blocked material is dropped and separated, solve the problem that polyurethane screen plate is easily blocked and inconvenient to clean in existing scheme.

Description

Technical Field

[0001] This utility model belongs to the technical field of material screening, and in particular relates to an anti-clogging polyurethane screen plate. Background Technology

[0002] Polyurethane screen plates are high-performance screening materials made from polyurethane elastomer through casting or molding. They combine the high elasticity of rubber with the high strength of plastics, exhibiting excellent wear resistance, strong impact resistance, high screening efficiency, and long service life. Furthermore, due to their high open area ratio and resistance to clogging, they effectively improve screening output and quality. They are also resistant to acids and alkalis and corrosion, making them widely applicable and used in screening operations in industries such as mining, coal, metallurgy, and power. They are an ideal replacement for traditional metal screen plates.

[0003] However, it still has the following drawbacks in actual use: polyurethane screen plates are prone to material jamming and clogging when screening materials, which affects normal use, reduces screening efficiency, and is relatively difficult to clean later. Utility Model Content

[0004] The purpose of this invention is to provide an anti-clogging polyurethane screen plate. This invention solves the problems of easy clogging and inconvenience in cleaning polyurethane screen plates in existing solutions by setting screening components and adjustment components.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is an anti-clogging polyurethane screen plate, including a screening component, the screening component including a frame, a screen one fixed on the upper surface of the frame, a screen two disposed in the inner cavity of the frame, and an adjustment component disposed on the frame.

[0007] The adjustment assembly includes a rack fixed to one corner of the screen, and a gear meshing with the rack is rotatably connected to the inner cavity of the frame. A secondary cavity is also provided at one corner of the frame, and a knob is rotatably connected in the secondary cavity. The central shaft of the knob passes through the inner wall of the frame and is fixedly connected to the gear. A ratchet is also fixed to the center of the knob at the end away from the gear. A fastener adapted to the ratchet is hinged to the side wall of the secondary cavity. The adjustment assembly also includes a V-shaped spring, with both ends of the V-shaped spring fixed to the side wall of the secondary cavity and the fastener, respectively. A button is also provided on the frame, with a steel wire rope fixed inside the button. The end of the steel wire rope away from the button is fixedly connected to the fastener.

[0008] Furthermore, two limiting rods are fixed inside the frame cavity, and the second screen is set on the outer periphery of the limiting rods.

[0009] Furthermore, screen one and screen two are the same model of screen. When the device is adjusted, the length and width of screen one and screen two are scaled proportionally when their apertures are staggered.

[0010] Furthermore, the adjustment assembly also includes a spring rod hinged to the inner wall of the frame cavity, with the telescopic end of the spring rod hinged to the second screen.

[0011] Furthermore, the knob area protrudes from the frame, and anti-slip grooves are provided on both the knob and the button.

[0012] Furthermore, the frame is also equipped with scale markings.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model, through its screening and adjustment components, allows for adjustment based on the type and size of the material to be screened. First, turning the knob drives the gear to rotate, which in turn drives the rack to move. Ultimately, the rack causes the second screen to shift, resulting in misalignment of the screen holes on the first and second screens. This changes the overall screen hole diameter of the device, allowing for material screening. This solves the problem in existing solutions where the screen hole size of polyurethane screen plates is mostly fixed and cannot be adjusted according to the material being screened.

[0015] 2. This utility model, through the setting of screening and adjustment components, when the screen plate is blocked, push the button, the button pulls the fastening part through the wire rope, so that the fastening part disengages from the ratchet. At this time, the screen will spring back and reset under the action of the spring rod, so that the overall aperture increases, thereby allowing the blocked material to fall off by itself, thus solving the problems of easy clogging and inconvenience in cleaning polyurethane screen plates in the existing solution.

[0016] 3. The present invention, through the setting of the screening component, has a scale on its frame, which can more accurately determine the screen hole size when the device aperture is adjusted, and finally adjust it to the aperture size most suitable for material screening, thus solving the problem of not being able to accurately confirm the screen hole size in the above solutions. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the overall appearance of this utility model;

[0018] Figure 2 This is a structural schematic diagram of the overall appearance of this utility model from another perspective;

[0019] Figure 3 This is a schematic diagram of the internal structure of the frame of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the secondary cavity of this utility model;

[0021] Figure 5 This is a top-view structural diagram of the internal structure of the secondary cavity of this utility model.

[0022] Figure label:

[0023] 1. Screening assembly; 11. Frame; 12. Screen one; 13. Screen two; 14. Limiting rod; 15. Scale marks;

[0024] 2. Adjustment component; 21. Rack; 22. Gear; 23. Secondary cavity; 24. Knob; 25. Ratchet; 26. Fastener; 27. V-shaped spring; 28. Button; 281. Wire rope; 29. ​​Spring rod. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Please see Figure 1-5 As shown, this utility model is an anti-clogging polyurethane screen plate, including a screening component 1. The screening component 1 includes a frame 11, a screen 12 fixed on the upper surface of the frame 11, a screen 2 13 disposed in the inner cavity of the frame 11, and an adjustment component 2 disposed on the frame 11. The screening component 1 is used to screen materials. The device is equipped with two screens, and the screen hole size of the device is mainly controlled by the degree of overlap of the two screen holes (formed by the overlap of the screen holes of screen 12 and screen 2 13). When the screen holes are blocked, the screen hole diameter can be increased to solve the blockage problem. At the same time, it can also be adjusted to the most suitable size of the hole for better screening according to the material conditions. The adjustment component 2 is mainly used to adjust the degree of overlap of screen 12 and screen 2 13. When the screen is blocked, the hole diameter is adjusted to the maximum (if the maximum hole diameter is used for direct screening, this function cannot be achieved) and adjusted to the most suitable hole diameter for material screening.

[0027] The adjusting assembly 2 includes a rack 21 fixed to one corner of the screen 13. A gear 22 that meshes with the rack 21 is rotatably connected to the inner cavity of the frame 11. A secondary cavity 23 is also provided at one corner of the frame 11. A knob 24 is rotatably connected in the secondary cavity 23. The central shaft of the knob 24 passes through the inner wall of the frame 11 and is fixedly connected to the gear 22. A ratchet 25 is also fixed to the center of the end of the knob 24 away from the gear 22. A fastening piece 26 that matches the ratchet 25 is hinged to the side wall of the secondary cavity 23. The adjusting assembly 2 also includes a V-shaped spring 27. The two ends of the V-shaped spring 27 are fixed to the side wall of the secondary cavity 23 and the fastening piece 26, respectively. A button 28 is also provided on the frame 11. A steel wire rope 281 is fixed inside the button 28. The end of the steel wire rope 281 away from the button 28 is fixedly connected to the fastening piece 26.

[0028] The rack 21 and gear 22 work together. When the knob 24 is turned by external force, the gear 22 rotates, which in turn moves the rack 21 and pulls the screen 13, causing the screen holes on the screen 12 and the screen 13 to misalign. This changes the overall screen hole diameter of the device. The knob 24 is mainly used for easy manual adjustment. The combination of ratchet 25, fastener 26, and V-shaped spring 27 allows for fixation during adjustment. The fastener 26 has a ratchet-like structure that matches the ratchet 25. Due to the nature of the ratchet 25, it can rotate in one direction, preventing it from rebounding. This allows the screen 13 to stay stably in the most suitable position (the most suitable aperture for screening). The button 28 is used to pull the fastener 26. Sliding the button 28 pulls the wire rope 281, which in turn pulls the fastener 26, causing the ratchet 25 and the fastener 26 to disengage. This allows the device to reset and fix the screen 13.

[0029] Furthermore, two limiting rods 14 are fixed inside the frame 11, and the second screen 13 is set on the outer periphery of the limiting rods 14. The limiting rods 14 are used to restrict the movement of the second screen 13, so that it can only achieve linear movement and will not shake in various ways inside the frame 11.

[0030] Furthermore, screen 12 and screen 2 13 are the same model of screen. When the device is adjusted, the length and width of screen 12 and screen 2 13 are scaled proportionally when their apertures are staggered. The tilt angle of the aforementioned middle limit rod 14 is the same as the angle of the diagonal of the screen apertures of screen 12 and screen 2 13. This ensures that the screen aperture size is always scaled proportionally when the device is adjusted, which can better determine the screen aperture size.

[0031] Furthermore, the adjustment assembly 2 also includes a spring rod 29 hinged to the inner wall of the frame 11. The telescopic end of the spring rod 29 is hinged to the screen 13. The spring rod 29 provides a thrust, and when the ratchet 25 and the fastener 26 are separated, the screen 13 will spring back on its own under the push of the spring rod 29 to complete the reset.

[0032] Furthermore, the knob 24 protrudes beyond the frame 11. Both the knob 24 and the button 28 have anti-slip grooves. The knob 24 requires manual adjustment by applying external force. The protruding part facilitates manual operation. The anti-slip grooves mainly increase the friction between the knob and the fingers to prevent slippage during adjustment.

[0033] Furthermore, the frame 11 is also equipped with a scale 15, which can more accurately determine the size of the screen hole of the device and ultimately adjust it to the most suitable aperture for material screening.

[0034] The specific working principle of this utility model is as follows: When using this device, adjust the screen hole size according to the type and size of the material to be screened. First, turn the knob 24. The rotation of the knob 24 drives the gear 22 to rotate. The rotation of the gear 22 drives the rack 21 to move. Finally, the rack 21 drives the screen 13 to shift, causing the screen holes on the screen 12 and the screen 13 to be misaligned, thus changing the overall screen hole diameter of the device. Then, the material can be screened. When the screen plate is blocked, push the button 28. The button 28 pulls the fastener 26 through the wire rope 281, causing the fastener 26 to disengage from the ratchet 25. At this time, the screen 13 will spring back and reset under the action of the spring rod 29, making the overall hole diameter larger, so that the blocked material falls off by itself. Even if there is still some that has not completely fallen off, it can be easily cleaned off manually, which greatly improves its practicality.

[0035] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall be protected by the present utility model.

Claims

1. A clog-resistant polyurethane screen deck characterized by: The sieve assembly (1) includes a frame (11), a screen (12) is fixed on the upper surface of the frame (11), a screen (13) is provided in the inner cavity of the frame (11), and an adjustment assembly (2) is provided on the frame (11). The adjusting assembly (2) includes a rack (21) fixed to one corner of the screen (13), and a gear (22) meshing with the rack (21) is rotatably connected to the inner cavity of the frame (11); a secondary cavity (23) is also provided at one corner of the frame (11), and a knob (24) is rotatably connected in the secondary cavity (23). The central axis of the knob (24) passes through the inner wall of the frame (11) and is fixedly connected to the gear (22). A ratchet is also fixed at the center of the end of the knob (24) away from the gear (22). 25), a fastening element (26) adapted to the ratchet (25) is hinged on the side wall of the secondary cavity (23). The adjustment assembly (2) also includes a V-shaped spring (27). The two ends of the V-shaped spring (27) are respectively fixed to the side wall of the secondary cavity (23) and the fastening element (26). A button (28) is also provided on the frame (11). A steel wire rope (281) is fixed inside the button (28). The end of the steel wire rope (281) away from the button (28) is fixedly connected to the fastening element (26).

2. The anti-jamming polyurethane screen panel according to claim 1, characterized in that: The inner cavity of the frame (11) is also fixed with two limiting rods (14), and the second screen (13) is set on the outer periphery of the limiting rods (14).

3. The anti-jamming polyurethane screen panel according to claim 1, wherein: The first screen (12) and the second screen (13) are the same type of screen. When the device is adjusted, the length and width of the screens when the apertures of the first screen (12) and the second screen (13) are staggered are scaled proportionally.

4. The anti-jamming polyurethane screen panel of claim 1, wherein: The adjustment assembly (2) also includes a spring rod (29) hinged to the inner wall of the frame (11), and the telescopic end of the spring rod (29) is hinged to the screen (13).

5. The anti-jamming polyurethane screen panel of claim 1, wherein: The knob (24) protrudes beyond the frame (11), and anti-slip grooves are provided on both the knob (24) and the button (28).

6. The anti-clogging polyurethane screen plate according to claim 1, characterized in that: The frame (11) is also provided with scale marks (15).

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