Sealed vibrating screen

By designing a sealed vibrating screen with multiple screen bodies and a guide trough, the problem of dust flying during the screening of powdered materials has been solved, achieving fully enclosed screening and improving safety and production efficiency.

CN224181331UActive Publication Date: 2026-05-01RONGJIN RUBBER & PLASTIC TECH (DONGGUAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RONGJIN RUBBER & PLASTIC TECH (DONGGUAN) CO LTD
Filing Date
2025-05-27
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing vibrating screens have poor sealing performance when processing powdery or fine granular materials, resulting in dust flying around, polluting the environment, affecting health, and posing safety hazards.

Method used

A sealed vibrating screen including a support mechanism, a screen body and a sealing cover was designed. Through the structural design of the multi-layer screen body and the material guide chute, a fully enclosed screening process is achieved to avoid dust flying.

Benefits of technology

It achieves fully enclosed operation during the screening process, avoiding dust emissions, protecting the health of operators, reducing production costs, and minimizing safety hazards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sealed vibrating screen which comprises a supporting mechanism, the supporting mechanism comprises a support, the bottom end of the support is provided with four adjusting columns, the top end of the support is provided with four springs, the bottom end of the support is provided with four idler wheels, and the four idler wheels are arranged beside the adjusting columns; the first screen body comprises a first screen frame, and the first screen frame is embedded into the top end of the interior of the support; the second screen body comprises a second screen frame, and the second screen frame is embedded into the first screen frame; the third screen body comprises a third screen frame, and the third screen frame is embedded into the second screen frame; the sealing cover comprises a cover plate, and the bottom end of the cover plate is attached to the upper end face of the third screen frame; a plurality of fixing mechanisms are arranged, each fixing mechanism comprises a transverse plate, the movable screen has the advantages of being simple in structure, reasonable in design and good in sealing effect, and the problem that due to the fact that an existing movable screen is poor in sealing performance, dust flies easily is solved.
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Description

A sealed vibrating screen Technical Field

[0001] This utility model relates to the field of vibrating screen technology, specifically a sealed vibrating screen. Background Technology

[0002] Vibrating screens are widely used screening equipment in numerous industries such as mining, metallurgy, chemicals, building materials, food, and pharmaceuticals. They use the excitation force generated by a vibrating motor or other vibration source to force materials to vibrate on the screen surface, thereby achieving the separation of materials of different particle sizes. In industrial production, vibrating screens play a crucial role in ensuring product quality, improving production efficiency, and optimizing process flows. For example, in the mining industry, they are used for ore classification, providing raw materials of suitable particle size for subsequent crushing and grinding processes; in the food industry, they are used for screening powdered or granular foods, removing impurities and substandard products, and ensuring food quality and safety.

[0003] During the screening process, especially when processing powdery or fine granular materials, existing vibrating screens often generate dust due to poor sealing performance. This not only pollutes the production environment and affects the health of operators, but also leads to material waste and increased production costs. Long-term exposure to dust can increase the risk of respiratory diseases, pneumoconiosis, and other occupational illnesses for operators. Furthermore, dust accumulation in the workshop poses a potential safety hazard, such as dust explosions. Summary of the Invention

[0004] The purpose of this utility model is to provide a sealed vibrating screen, which has the advantages of simple structure, reasonable design and good sealing effect, and solves the problem of dust flying easily due to poor sealing performance of current vibrating screens.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sealed vibrating screen, comprising: a support mechanism, the support mechanism including a bracket, the bracket having four adjusting columns at the bottom and four springs at the top, and four rollers at the bottom of the bracket placed beside the adjusting columns;

[0006] A first sieve body, the first sieve body includes a sieve frame, the sieve frame being embedded in the top of the support;

[0007] The second sieve body includes a second sieve frame, which is embedded inside the first sieve frame.

[0008] The third sieve body includes a sieve frame three, which is embedded inside the sieve frame two.

[0009] A sealing cover, the sealing cover including a cover plate, the bottom end of the cover plate being attached to the upper end face of the screen frame;

[0010] A fixing mechanism is provided, and several fixing mechanisms are provided. Each fixing mechanism includes a horizontal plate that fits against the upper end face of the sealing cover.

[0011] Preferably, one end of the screen frame is provided with a guide trough 1 and a guide trough 2, wherein the guide trough 1 and the guide trough 2 are inclined and the inclination directions of the guide trough 1 and the guide trough 2 are opposite. The bottom ends of the inclined guide trough 1 and the guide trough 2 are respectively provided with a discharge pipe 1 and a discharge pipe 2, and the end of the screen frame 1 provided with the guide trough 2 is provided with a guide trough 3.

[0012] Preferably, the third guide trough is positioned above the second guide trough, and the third guide trough is inclined, with a discharge pipe third at the inclined bottom end, and a vibration motor is provided at the bottom end of the first screen frame.

[0013] Preferably, the screen frame 2 has a plurality of screen holes 1 inside, and a through groove 1 is provided at one end of the screen frame 2 near the material guide groove 2. The width of the through groove 1 is less than the width of the material guide groove 2 and greater than the width of the material guide groove 3.

[0014] Preferably, the third screen body includes a screen frame three, the screen frame three is provided with a plurality of screen holes two, and a through groove two is provided at one end of the screen frame three near the material guide groove three, the width of the through groove two is smaller than the width of the material guide groove three.

[0015] Preferably, the cover plate has several feeding holes inside, and the length and width of the cover plate are equal to the length and width of the screen frame.

[0016] Preferably, the fixing mechanism is provided with four, and one end of the horizontal plate is provided with a limiting plate on one side of the card and bracket, and the other end is provided with an elastic buckle on the other side of the card and bracket.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model includes a support mechanism comprising a bracket with four adjusting columns at the bottom and four springs at the top, and four rollers at the bottom of the bracket positioned beside the adjusting columns; a first sieve body including a sieve frame one embedded in the top of the bracket; a second sieve body including a sieve frame two embedded in the sieve frame one; a third sieve body including a sieve frame three embedded in the sieve frame two; a sealing cover including a cover plate with its bottom end fitting against the upper surface of the sieve frame three; and a fixing mechanism comprising several fixing mechanisms, each including a horizontal plate fitting against the upper surface of the sealing cover. The structure is simple and rationally designed, ensuring a sealed process throughout the sieving process and preventing dust from flying.

[0019] 2. This utility model sets up a first guide trough, a second guide trough, a third guide trough, a first through trough, and a second through trough. The material that has not passed through the screening frame is leaked out through the first through trough and the second through trough, and the material is discharged through the third guide trough and the second through trough. The unscreened material is sealed and discharged, and can be processed again. It is more energy-efficient and more practical. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the main structure of this utility model;

[0021] Figure 2 is an exploded view of this utility model;

[0022] Figure 3 is a top view of the first sieve body in Figure 2 of this utility model;

[0023] Figure 4 is a top view of the third sieve body in Figure 2 of this utility model.

[0024] The reference numerals and names in the figure are as follows:

[0025] 1. Support mechanism; 11. Bracket; 12. Adjusting column; 13. Roller; 14. Spring; 2. First screen body; 21. Screen frame one; 22. Guide chute one; 23. Discharge pipe one; 24. Guide chute two; 25. Discharge pipe two; 26. Guide chute three; 27. Discharge pipe three; 28. Vibrating motor; 3. Second screen body; 31. Screen frame two; 32. Screen hole one; 33. Through groove one; 4. Third screen body; 41. Screen frame three; 42. Screen hole two; 43. Through groove two; 5. Sealing cover; 51. Cover plate; 52. Feeding hole; 6. Fixing mechanism; 61. Horizontal plate; 62. Limiting plate; 63. Elastic buckle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0028] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0029] Please refer to Figures 1 to 4. An embodiment of this utility model is provided: a sealed vibrating screen, including: a support mechanism 1, the support mechanism 1 including a bracket 11, four adjusting columns 12 are provided at the bottom end of the bracket 11, four springs 14 are provided at the top end, and four rollers 13 are provided at the bottom end of the bracket 11, with the four rollers 13 placed next to the adjusting columns 12.

[0030] The first sieve body 2 includes a sieve frame 21, which is embedded in the top of the support 11.

[0031] The second sieve body 3 includes a second sieve frame 31, which is embedded inside the first sieve frame 21.

[0032] The third sieve body 4 includes a sieve frame 3 41, which is embedded inside the sieve frame 2 31.

[0033] Sealing cover 5, the sealing cover 5 includes cover plate 51, the bottom end of cover plate 51 is attached to the upper end face of screen frame 3 41;

[0034] The fixing mechanism 6 is provided in several parts. Each fixing mechanism 6 includes a horizontal plate 61, which fits against the upper surface of the sealing cover 5.

[0035] One end of the screen frame 21 is provided with a guide chute 22 and a guide chute 24, which are inclined in opposite directions. The bottom ends of the inclined guide chute 22 and the guide chute 24 are respectively provided with a discharge pipe 23 and a discharge pipe 25. The end of the screen frame 21 with the guide chute 24 is provided with a guide chute 36, which is positioned above the guide chute 24 and is inclined. The bottom end of the inclined guide chute is provided with a discharge pipe 27. A vibrating motor 28 is provided at the bottom of the screen frame 21. The screen frame 31 has several screen holes 32 inside, and the screen frame 31 is close to the guide chute 24. One end is provided with a through groove 33. The width of the through groove 33 is less than the width of the guide groove 24 and greater than the width of the guide groove 36. The third screen body 4 includes a screen frame 41. The screen frame 41 is provided with a number of screen holes 42. The end of the screen frame 41 near the guide groove 26 is provided with a through groove 43. The width of the through groove 43 is less than the width of the guide groove 26. The cover plate 51 is provided with a number of feeding holes 52. The length and width of the cover plate 51 are equal to the length and width of the screen frame 21. There are four fixing mechanisms 6. One end of the horizontal plate 61 is provided with a limiting plate 62 on one side of the clip and bracket 11. The other end is provided with an elastic buckle 63 on the other side of the clip and bracket 11.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sealed vibrating screen, characterized in that, include: Support mechanism (1), the support mechanism (1) includes a bracket (11), the bracket (11) is provided with four adjusting columns (12) at the bottom end and four springs (14) at the top end, and the bracket (11) is provided with four rollers (13) at the bottom end, the four rollers (13) are placed next to the adjusting columns (12); first screen body (2), the first screen body (2) includes a screen frame one (21), the screen frame one (21) is embedded in the top end of the bracket (11); second screen body (3), the second screen body (3) includes a screen frame two (31), The second sieve frame (31) is embedded inside the first sieve frame (21); the third sieve body (4) includes a third sieve frame (41), which is embedded inside the second sieve frame (31); the sealing cover (5) includes a cover plate (51), the bottom end of which is attached to the upper surface of the third sieve frame (41); the fixing mechanism (6) is provided in several parts, each of which includes a horizontal plate (61), which is attached to the upper surface of the sealing cover (5).

2. A sealed vibrating screen according to claim 1, characterized in that: One end of the screen frame (21) is provided with a guide trough (22) and a guide trough (24), wherein the guide trough (22) and the guide trough (24) are inclined and the inclination directions of the guide trough (22) and the guide trough (24) are opposite. The bottom ends of the guide trough (22) and the guide trough (24) are respectively provided with a discharge pipe (23) and a discharge pipe (25). One end of the screen frame (21) provided with the guide trough (24) is provided with a guide trough (3) (26).

3. A sealed vibrating screen according to claim 2, characterized in that: The third guide trough (26) is placed above the second guide trough (24), and the third guide trough (26) is inclined. The bottom end of the inclined trough is provided with the third discharge pipe (27), and the bottom end of the first screen frame (21) is provided with the vibration motor (28).

4. A sealed vibrating screen according to claim 2, characterized in that: The screen frame 2 (31) is provided with a plurality of screen holes 1 (32) inside, and a through groove 1 (33) is provided at one end of the screen frame 2 (31) near the guide groove 2 (24). The width of the through groove 1 (33) is less than the width of the guide groove 2 (24) and greater than the width of the guide groove 3 (26).

5. A sealed vibrating screen according to claim 1, characterized in that: The third screen body (4) includes a screen frame three (41), which is provided with a plurality of screen holes two (42), and a through groove two (43) is provided at one end of the screen frame three (41) near the guide groove three (26), the width of the through groove two (43) being smaller than the width of the guide groove three (26).

6. A sealed vibrating screen according to claim 1, characterized in that: The cover plate (51) has several feeding holes (52) inside, and the length and width of the cover plate (51) are equal to the length and width of the screen frame (21).

7. A sealed vibrating screen according to claim 1, characterized in that: The fixing mechanism (6) is provided in four parts. One end of the horizontal plate (61) is provided with a limiting plate (62) on one side of the card and bracket (11), and the other end is provided with an elastic buckle (63) on the other side of the card and bracket (11).