Quartz sand feeding dust cover device
By designing a dust cover device for feeding quartz sand, and utilizing the combination of limit blocks and springs, the dust cover can be quickly installed and stabilized, solving the wear problem caused by electrostatic quartz sand adhesion and reducing the equipment failure rate.
Patent Information
- Application Number
- CN202521534965.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-22
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-07-22
AI Technical Summary
During the current quartz sand feeding process, electrostatic quartz sand adheres to the surface of the rotating shaft and bearing, causing wear and generating foreign matter that falls directly into the quartz crucible, resulting in abnormal appearance and scrap.
A dust cover device for feeding quartz sand was designed, including a rotating mechanism, an installation mechanism, and a dust prevention mechanism. The dust cover body and rubber mounting cylinder are made of polytetrafluoroethylene material. Through the cooperation of limit blocks and springs, the dust cover can be quickly installed and stabilized, preventing quartz sand from directly contacting the rotating shaft.
It effectively prevents quartz sand from contacting the rotating shaft, reducing equipment failure rate, is easy to operate, resistant to vibration and impact, and provides reliable protection.
Smart Images

Figure CN224929949U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of dust cover devices, specifically relating to a dust cover device for feeding quartz sand. Background Technology
[0002] The material feeding dust cover is a special protective device designed for various materials in industrial production. Its core function is to control the spread of dust generated during the feeding process, while protecting the feeding equipment and the operating environment. It is a key device that takes into account environmental protection, safety and equipment maintenance.
[0003] In existing devices, the quartz sand contains electrostatic quartz sand that adheres to the surfaces of the rotating shaft and the rotating bearing. When the rotating bearing is in operation, wear will generate foreign objects. Since there is no protective device between the quartz turntable and the bearing, the foreign objects will fall directly into the quartz sand, resulting in abnormal appearance of the quartz crucible and its scrapping. Utility Model Content
[0004] To overcome the problem in existing devices where the quartz sand contains electrostatics and adheres to the surfaces of the rotating shaft and rotating bearing, and where the rotating bearing wears down during operation and generates foreign matter, and since there is no protective device between the quartz turntable and the bearing, the foreign matter will fall directly into the quartz sand, causing the quartz crucible to become abnormal and unusable, a quartz sand feeding dust cover device is proposed.
[0005] The technical solution of this utility model is: a dust cover device for feeding quartz sand, including a turntable and a rotating mechanism fixedly connected to one side of the turntable, an installation mechanism slidably installed on the inner wall of the rotating mechanism, and a dustproof mechanism fixedly connected to one side of the installation mechanism.
[0006] Furthermore, the rotating mechanism includes a rotating shaft fixed to one side of the turntable, two first slots opened on the side wall of the rotating shaft, a bearing fixed to the inner wall of the first slot, and a fixed cylinder fixed to the surface of the bearing.
[0007] Furthermore, the installation mechanism includes two second slots opened on the surface of the fixed cylinder, third slots opened on both sides of the inner wall of the second slots, a spring fixed to the inner wall of the third slots, and a sliding block fixed to the end of the spring away from the third slot.
[0008] Furthermore, the dustproof mechanism includes a limiting block that is slidably installed on the inner wall of the second slot, a fourth slot opened on both sides of the limiting block near the sliding block, a mounting cylinder that is fixedly connected to the side of the two limiting blocks away from the mounting mechanism, and a dustproof cover body that is fixedly connected to the side of the two mounting cylinders that are close to each other.
[0009] Furthermore, the limiting block is slidably installed on the inner wall of the second slot, and the sliding block is slidably installed on the inner wall of the fourth slot.
[0010] Furthermore, the dust cover body is made of polytetrafluoroethylene, and the mounting sleeve is made of rubber.
[0011] Furthermore, a two-millimeter gap is left between the dust cover body and the turntable.
[0012] The beneficial effects of this utility model are: 1. The dust cover body can be quickly removed by pulling out the limit block and the sliding block retracting under pressure. During installation, simply slide the limit block into the slot, and the spring will automatically push the sliding block to lock it. The entire operation is simple. 2. After the limit block is installed in place, the spring force continuously pushes the sliding block into the fourth slot, forming a rigid limit, which has strong anti-vibration and anti-impact capabilities, and the position of the dust cover body remains stable at all times. 3. The dust cover body is always in an effective interception position through a stable limit switch. The quartz sand is reliably blocked on the surface of the dust cover body and cannot directly contact the rotating shaft. The protection effect is continuous and reliable, reducing the equipment failure rate. Attached Figure Description
[0013] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model; Figure 2 The diagram shown is a cross-sectional perspective view of the rotating mechanism of this utility model. Figure 3 The diagram shown is a second cross-sectional perspective view of the installation mechanism of this utility model. Figure 4 The diagram shown is a first cross-sectional perspective view of the dustproof mechanism of this utility model. Figure 5 The diagram shown is a two-dimensional cross-sectional view of the dustproof mechanism of this utility model.
[0014] The labels in the attached diagram are as follows: 1. Turntable; 2. Rotation mechanism; 21. Rotation shaft; 22. First slot; 23. Bearing; 24. Fixing cylinder; 3. Mounting mechanism; 31. Second slot; 32. Third slot; 33. Spring; 34. Sliding block; 4. Dustproof mechanism; 41. Limiting block; 42. Fourth slot; 43. Mounting cylinder; 44. Dustproof cover body. Detailed Implementation
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Please see Figures 1-5 This utility model provides an embodiment: a dust cover device for feeding quartz sand, including a turntable 1 and a rotating mechanism 2 fixedly connected to one side of the turntable 1, an installation mechanism 3 slidably installed on the inner wall of the rotating mechanism 2, and a dustproof mechanism 4 fixedly connected to one side of the installation mechanism 3.
[0017] In use, the limiting block 41 is first installed on the inner wall of the second slot 31. The lower end of the limiting block 41 presses against the sliding block 34, which in turn presses against the spring 33, causing the sliding block 34 to slide into the third slot 32. Then, the limiting block 41 is slidably installed inside the second slot 31. When the limiting block 41 is fully inside the second slot 31, the fourth slot 42 and the sliding block 34 correspond. The spring 33 pushes the sliding block 34, pushing it into the fourth slot 42. The sliding block 34 limits the limiting block 41. When the device is in use, quartz sand falls onto the surface of the dust cover body 44, protecting the rotating shaft 21. When the dust cover body 44 needs to be disassembled and replaced, the limiting block 41 is removed, the inner wall of the fourth slot 42 presses against the sliding block 34, and the sliding block 34 presses against the spring 33, pressing the sliding block 34 into the third slot 32. The limiting block 41 is then removed, and the dust cover body 44 is replaced.
[0018] Please see Figure 2 In this embodiment, the rotating mechanism 2 includes a rotating shaft 21 fixed to one side of the turntable 1, two first slots 22 opened on the side wall of the rotating shaft 21, a bearing 23 fixed to the inner wall of the first slots 22, and a fixed cylinder 24 fixed to the surface of the bearing 23. The bearing 23 can make the mounting mechanism 3 fit more closely to the surface of the rotating shaft 21.
[0019] Please see Figure 3 In this embodiment, the mounting mechanism 3 includes two second slots 31 opened on the surface of the fixed cylinder 24, third slots 32 opened on both sides of the inner wall of the second slots 31, a spring 33 fixed to the inner wall of the third slots 32, and a sliding block 34 fixed to the end of the spring 33 away from the third slots 32. The spring 33 pushes the sliding block 34 to achieve a reversible stroke.
[0020] Please see Figure 4 and Figure 5 In this embodiment, the dustproof mechanism 4 includes a limiting block 41 that is slidably installed on the inner wall of the second slot 31, a fourth slot 42 opened on both sides of the limiting block 41 near the sliding block 34, an installation cylinder 43 that is fixedly connected to the side of the two limiting blocks 41 away from the installation mechanism 3, and a dustproof cover body 44 that is fixedly connected to the side of the two installation cylinders 43 that are close to each other. The dustproof cover body 44 protects the rotating shaft 21.
[0021] Please see Figure 3 and Figure 4 In this embodiment, the limiting block 41 is slidably installed on the inner wall of the second slot 31, and the sliding block 34 is slidably installed on the inner wall of the fourth slot 42. The sliding block 34 slides to the inner wall of the fourth slot 42 to limit the limiting block 41.
[0022] Please see Figure 1In this embodiment, the dust cover body 44 is made of polytetrafluoroethylene (PTFE), and the mounting cylinder 43 is made of rubber. PTFE has corrosion resistance, high temperature resistance, low coefficient of friction, insulation and hydrophobic and oleophobic properties. Rubber has a certain deformation capacity, which makes the dust cover mechanism 4 and the mounting mechanism 3 fit tightly together, and makes it easy to remove the limiting block 41 when the mounting cylinder 43 is stretched.
[0023] Please see Figure 5 In this embodiment, a two-millimeter gap is left between the dust cover body 44 and the turntable 1 to avoid the gap being too large, which would cause foreign objects to leak, or too small, which would cause friction.
[0024] Working principle: First, the limiting block 41 is installed on the inner wall of the second slot 31. The lower end of the limiting block 41 presses against the sliding block 34, which in turn presses against the spring 33, causing the sliding block 34 to slide into the third slot 32. Then, the limiting block 41 is slidably installed inside the second slot 31. When the limiting block 41 is fully inside the second slot 31, the fourth slot 42 and the sliding block 34 correspond. The spring 33 pushes the sliding block 34, pushing it into the fourth slot 42. The sliding block 34 limits the limiting block 41. When the device is in use, quartz sand falls onto the surface of the dust cover body 44, protecting the rotating shaft 21. When the dust cover body 44 needs to be disassembled and replaced, the limiting block 41 is removed, the inner wall of the fourth slot 42 presses against the sliding block 34, and the sliding block 34 presses against the spring 33, forcing the sliding block 34 into the third slot 32. The limiting block 41 is then removed, and the dust cover body 44 is replaced.
Claims
1. A dust cover device for feeding quartz sand, characterized in that, The system includes a turntable (1) and a rotating mechanism (2) fixed to one side of the turntable (1), an installation mechanism (3) slidably mounted on the inner wall of the rotating mechanism (2), and a dustproof mechanism (4) fixed to one side of the installation mechanism (3). The rotating mechanism (2) includes a rotating shaft (21) fixed to one side of the turntable (1), two first slots (22) opened on the side wall of the rotating shaft (21), a bearing (23) fixed to the inner wall of the first slot (22), and a fixed cylinder (24) fixed to the surface of the bearing (23). The installation mechanism (3) includes two second slots (31) opened on the surface of the fixed cylinder (24), and a second slot... The dustproof mechanism (4) includes a third slot (32) opened on both sides of the inner wall of the hole (31), a spring (33) fixed to the inner wall of the third slot (32), and a sliding block (34) fixed to the end of the spring (33) away from the third slot (32). The dustproof mechanism (4) includes a limiting block (41) slidably installed on the inner wall of the second slot (31), a fourth slot (42) opened on both sides of the limiting block (41) near the sliding block (34), an installation cylinder (43) fixed to the side of the two limiting blocks (41) away from the installation mechanism (3), and a dustproof cover body (44) fixed to the side of the two installation cylinders (43) close to each other.
2. The quartz sand feeding dust cover device according to claim 1, characterized in that, The limiting block (41) is slidably installed on the inner wall of the second slot (31), and the sliding block (34) is slidably installed on the inner wall of the fourth slot (42).
3. The quartz sand feeding dust cover device according to claim 1, characterized in that, The dust cover body (44) is made of polytetrafluoroethylene material, and the mounting cylinder (43) is made of rubber.
4. The quartz sand feeding dust cover device according to claim 1, characterized in that, There is a two-millimeter gap between the dust cover body (44) and the turntable (1).
