Simple dustproof sizing screen

The combination structure of steel wire hose, threaded connection sleeve and fixing plate solves the cumbersome operation and sealing problems of the grading screen, realizes the effect of simplifying installation and disassembly and improving sealing, and reduces dust leakage and labor intensity.

CN224926496UActive Publication Date: 2026-11-03SHANDONG HEMEI GROUP
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202620195347.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2026-02-10
Publication Date
2026-11-03
Estimated Expiration
2036-02-10

AI Technical Summary

Technical Problem

The existing flexible connection between the feed inlet and the screen cover of the grading screen is cumbersome and labor-intensive when replacing the screen, and there is also the possibility of gaps caused by insecure binding, which affects the sealing performance.

Method used

It adopts a combination structure of steel wire hose, threaded connection sleeve and fixing plate. Quick connection and disassembly are achieved by rotating the threaded connection sleeve, and it is fixed by sealing gasket and bolt. Combined with the dust removal component, it removes accumulated dust and simplifies the operation process.

Benefits of technology

It improves the sealing performance of the grading screen, reduces the labor intensity of operators, reduces dust leakage, simplifies the installation and disassembly process, and improves the ease of use and material conveying efficiency of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224926496U_ABST
    Figure CN224926496U_ABST
Patent Text Reader

Abstract

The utility model discloses a simple dustproof grading screen, specifically related to grading screen technical field, including steel wire hose and grading screen main part, and steel wire hose is located the bottom of grading screen main part, and the top and bottom of steel wire hose all fixedly link with the threaded connection sleeve, and the opposite end of two threaded connection sleeves all fixedly links with fixed plate, and the opposite end of two fixed plates all fixedly bonded with first sealing washer for preventing dust overflow, and the inside of two threaded connection sleeves all fixedly bonded with second sealing washer for preventing dust overflow. The utility model discloses through rotating threaded connection sleeve and makes it along grading screen main part axial movement, thereby makes grading screen main part with steel wire hose intercommunication, and inserts the threaded jack of multiple fixed plate preset through -hole and screen cover into multiple bolts respectively, and makes fixed plate with screen cover fixed through tightening bolt, and simple operation is convenient for installation and dismounting, and effectively reduces the labor intensity of operating personnel.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of grading sieve technology, and more specifically, to a simple dustproof grading sieve. Background Technology

[0002] Grading screens are a type of material grading equipment widely used in various fields such as animal husbandry, feed, and grain processing. Their core function is to accurately separate materials of different particle sizes through screens of different specifications, thereby meeting the quality requirements of subsequent production processing or product applications.

[0003] Most existing grading screens use ordinary canvas or rubber flexible connections to connect and fix the feed inlet and screen cover. When replacing the screen, operators must first disassemble and re-tie the flexible connection. This operation is cumbersome and requires a high degree of tightness in the binding. It not only consumes a lot of manual time and increases the labor intensity of operators, but also has the problem of unstable binding quality. When the binding is not firm, gaps will appear between the flexible connection and the feed inlet and screen cover. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a simple dustproof grading screen, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a simple dustproof grading screen, comprising a steel wire hose and a grading screen body, wherein the steel wire hose is located at the bottom of the grading screen body, and threaded connecting sleeves are fixedly connected to the top and bottom ends of the steel wire hose, and fixing plates are fixedly connected to the opposite ends of the two threaded connecting sleeves, and first sealing gaskets for preventing dust overflow are fixedly bonded to the opposite ends of the two fixing plates, and second sealing gaskets for preventing dust overflow are fixedly bonded to the inside of the two threaded connecting sleeves.

[0006] Furthermore, the steel wire hose is made of transparent polyurethane flexible material and has an embedded high-elasticity galvanized steel wire skeleton.

[0007] Furthermore, the outer side of the steel wire hose is provided with multiple dust-repelling components, each of which includes a mounting bracket, a push plate, a buffer pad, two connecting rods, a cross plate, two springs, a threaded insert rod, and two nuts.

[0008] Furthermore, one end of each of the two connecting rods is fixedly connected to the horizontal plate, and the other end of each of the two connecting rods is fixedly connected to the push plate, which is located between the mounting bracket and the steel wire hose.

[0009] Furthermore, one end of each of the two springs is fixedly connected to the mounting bracket, and the other end of each of the two springs is fixedly connected to the push plate. The two springs are respectively movably sleeved on the two connecting rods.

[0010] Furthermore, the buffer pad is located between the push plate and the steel wire hose, and one side of the buffer pad is fixedly connected to the push plate.

[0011] Furthermore, one end of the threaded insert passes through the mounting bracket, and both nuts are movably sleeved on the threaded insert.

[0012] Furthermore, two limiting plates are movably sleeved on the threaded insert, and one side of each limiting plate is fixedly connected to the fixing plate.

[0013] The technical effects and advantages of this utility model are as follows: 1. This utility model connects the grading screen body to the steel wire hose by rotating the threaded connecting sleeve and moving it along the axial direction of the grading screen body. The second sealing gasket can improve the sealing between the threaded connecting sleeve and the grading screen body. Multiple bolts are inserted into the pre-set through holes of multiple fixing plates and the threaded insertion holes of the screen cover, and the fixing plates are fixed to the screen cover by tightening the bolts. The operation is simple, easy to install and disassemble, and effectively reduces the labor intensity of operators. 2. This utility model uses two nuts and threaded rods to fix the mounting frame and two limiting plates. Pulling the horizontal plate can drive the two connecting rods to move horizontally along the mounting frame, thereby driving the push plate and buffer pad to move synchronously away from the steel wire hose. This causes the two springs to compress and store elastic potential energy. The push plate and buffer pad impact the outer wall of the steel wire hose, thereby shaking off the dust attached to the inner wall of the steel wire hose. The structure is simple and easy to use. Attached Figure Description

[0014] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0015] Figure 1 This is a three-dimensional view of the overall structure of this utility model; Figure 2 This is a front view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the assembly structure of the threaded connecting sleeve and the limiting plate of this utility model; Figure 4This is a schematic diagram of the structure of the ash-repellent component of this utility model.

[0016] In the diagram: 1. Steel wire hose; 2. Threaded connecting sleeve; 3. Fixing plate; 4. First sealing gasket; 5. Second sealing gasket; 6. Limiting plate; 7. Shaking assembly; 8. Grading screen body; 701. Mounting bracket; 702. Push plate; 703. Buffer pad; 704. Connecting rod; 705. Horizontal plate; 706. Spring; 707. Threaded insertion rod; 708. Nut. Detailed Implementation

[0017] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0018] Refer to the instruction manual appendix Figure 1-3 This embodiment of a simple dustproof grading screen includes a steel wire hose 1 and a grading screen body 8, with the steel wire hose 1 located at the bottom of the grading screen body 8. The top and bottom ends of the steel wire hose 1 are fixedly connected to threaded connecting sleeves 2. The opposite ends of the two threaded connecting sleeves 2 are fixedly connected to fixing plates 3. The opposite ends of the two fixing plates 3 are fixedly bonded with first sealing gaskets 4 for preventing dust overflow. The inside of the two threaded connecting sleeves 2 is fixedly bonded with second sealing gaskets 5 for preventing dust overflow. The steel wire hose 1 is made of transparent polyurethane flexible material and has an embedded high-elasticity galvanized steel wire skeleton.

[0019] The usage method of this embodiment is as follows: In use, the outer side of the grading screen body 8 is threaded. The threaded connecting sleeve 2 is fitted onto the outer side of the grading screen body 8. The threaded connecting sleeve 2 is rotated and moved axially along the grading screen body 8, thereby connecting the grading screen body 8 with the steel wire hose 1. One side of the second sealing gasket 5 is tightly fitted with the grading screen body 8. The second sealing gasket 5 can improve the sealing between the threaded connecting sleeve 2 and the grading screen body 8, thereby reducing the situation where dust is emitted from the threaded connection during material transportation, reducing material loss and dust pollution in the workshop. Similarly, by rotating the threaded connecting sleeve 2 in the opposite direction and moving it away from the grading screen body 8, the fixing between the steel wire hose 1 and the grading screen body 8 can be quickly released. Compared with the traditional bundled connection, the cumbersome unbundling steps are omitted.

[0020] Because the flexible steel wire hose 1 is made of transparent polyurethane and has an embedded high-elasticity galvanized steel wire skeleton, the conveying status of the material inside the hose can be directly observed, and problems such as material blockage and abnormal flow rate can be detected in time. At the same time, its flexibility can adapt to the slight vibration of the grading screen body during operation, avoiding damage to the connection parts due to rigid tension. The fixing plate 3 is placed on the screen cover, and one side of the first sealing gasket 4 is in close contact with the screen cover, which can improve the sealing between the fixing plate 3 and the screen cover, further preventing dust from leaking from the gap between the fixing plate and the screen cover. It is worth noting that the screen cover has multiple threaded insertion holes. Multiple bolts are inserted into the multiple pre-set through holes of the fixing plate 3 and the threaded insertion holes of the screen cover, and the fixing plate 3 is fixed to the screen cover by tightening the bolts. At the same time, the fixing plate 3 is removed from the screen cover. The operation is simple, easy to install and disassemble, and effectively reduces the labor intensity of the operators. Example

[0021] Refer to the instruction manual appendix Figure 1-4 Based on Example 1, this example provides a simple dustproof grading screen: multiple dust-vibrating components 7 are provided on the outside of the steel wire hose 1. Each of the multiple dust-vibrating components 7 includes a mounting frame 701, a push plate 702, a buffer pad 703, two connecting rods 704, a horizontal plate 705, two springs 706, a threaded rod 707, and two nuts 708. One end of each of the two connecting rods 704 is fixedly connected to the horizontal plate 705, and the other end of each of the two connecting rods 704 is fixedly connected to the push plate 702. The push plate 702 is located between the mounting frame 701 and the steel wire hose 1. One end of each of the two springs 706 is fixedly connected to the mounting frame 701, and the other end of each of the two springs 706 is fixedly connected to the push plate 702. The two springs 706 are respectively movably sleeved on the two connecting rods 704.

[0022] The buffer pad 703 is located between the push plate 702 and the steel wire hose 1, and one side of the buffer pad 703 is fixedly connected to the push plate 702. One end of the threaded rod 707 passes through the mounting bracket 701. Two nuts 708 are movably sleeved on the threaded rod 707. Two limiting plates 6 are movably sleeved on the threaded rod 707, and one side of each of the two limiting plates 6 is fixedly connected to the fixing plate 3.

[0023] The usage method of this embodiment is as follows: In use, place the mounting bracket 701 between the two limiting plates 6, and then pass the threaded rod 707 horizontally through the pre-set through hole of the mounting bracket 701 and the reserved hole of the two limiting plates 6. It is worth noting that both ends of the outer side of the threaded rod 707 are provided with external threads. Put the two nuts 708 on both ends of the threaded rod 707 and tighten the nuts 708. The mounting bracket 701 and the two limiting plates 6 are fixed by the cooperation of the two nuts 708 and the threaded rod 707. Similarly, loosen the nuts and pull out the threaded rod 707 to quickly disassemble the mounting bracket 701. Pulling the horizontal plate 705 causes the two connecting rods 704 to move horizontally along the mounting frame 701, thereby causing the push plate 702 and the buffer pad 703 to move synchronously away from the steel wire hose 1. This causes the two springs 706 to compress and store elastic potential energy. When the horizontal plate 705 is released, the two springs 706 release their elastic potential energy, which can cause the push plate 702 and the buffer pad 703 to move quickly towards the steel wire hose 1. By impacting the outer wall of the steel wire hose 1, the accumulated dust attached to the inner wall of the steel wire hose 1 can be shaken off, preventing the long-term accumulation of dust from reducing the inner diameter of the hose and affecting the material conveying efficiency. In addition, the buffer pad 703 is made of wear-resistant rubber, which can prevent the push plate 702 from making rigid contact with the steel wire hose 1. The structure is simple and easy to use.

[0024] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0025] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A simple dustproof grading screen, comprising a steel wire hose (1) and a grading screen body (8), wherein the steel wire hose (1) is located at the bottom of the grading screen body (8), characterized in that: The top and bottom ends of the steel wire hose (1) are fixedly connected to threaded connecting sleeves (2), and the opposite ends of the two threaded connecting sleeves (2) are fixedly connected to fixing plates (3). The opposite ends of the two fixing plates (3) are fixedly bonded with first sealing gaskets (4) to prevent dust from overflowing. The inside of the two threaded connecting sleeves (2) is fixedly bonded with second sealing gaskets (5) to prevent dust from overflowing.

2. The simplified dustproof grading sieve according to claim 1, characterized in that: The steel wire hose (1) is made of transparent polyurethane flexible material and has a high-elasticity galvanized steel wire skeleton embedded inside.

3. The simplified dustproof grading sieve according to claim 1, characterized in that: The outer side of the steel wire hose (1) is provided with multiple dust-removing components (7), each of the multiple dust-removing components (7) includes a mounting bracket (701), a push plate (702), a buffer pad (703), two connecting rods (704), a horizontal plate (705), two springs (706), a threaded insert (707), and two nuts (708).

4. The simplified dustproof grading sieve according to claim 3, characterized in that: One end of each of the two connecting rods (704) is fixedly connected to the horizontal plate (705), and the other end of each of the two connecting rods (704) is fixedly connected to the push plate (702), which is located between the mounting bracket (701) and the steel wire hose (1).

5. The simplified dustproof grading sieve according to claim 3, characterized in that: One end of each of the two springs (706) is fixedly connected to the mounting bracket (701), and the other end of each of the two springs (706) is fixedly connected to the push plate (702). The two springs (706) are respectively movably sleeved on the two connecting rods (704).

6. The simplified dustproof grading sieve according to claim 3, characterized in that: The buffer pad (703) is located between the push plate (702) and the steel wire hose (1), and one side of the buffer pad (703) is fixedly connected to the push plate (702).

7. The simplified dustproof grading sieve according to claim 3, characterized in that: One end of the threaded insert (707) passes through the mounting bracket (701), and both nuts (708) are movably sleeved on the threaded insert (707).

8. The simplified dustproof grading sieve according to claim 3, characterized in that: Two limiting plates (6) are movably sleeved on the threaded insert (707), and one side of each limiting plate (6) is fixedly connected to the fixing plate (3).