Filtering device for measuring silicon dioxide
By using connecting plates and spring structures to fix the conical filter membrane in the silica analyzer, the problem of detection deviation caused by filter membrane displacement was solved, and the stability and accuracy of the filtration process were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-04-07
AI Technical Summary
In existing silica measuring instruments, the conical filter membrane lacks a fixed structure, which causes the filter membrane to shift when liquid impacts, resulting in deviations in the test results.
The conical filter membrane is fixed to the beaker by using multiple sets of connecting plates and spring structure. The spring push and the contact wheel cooperation ensure that the filter membrane is stable in the beaker and avoids displacement caused by liquid impact.
It effectively prevents the conical filter membrane from shifting during liquid impact, ensuring the accuracy of the filtration process and avoiding deviations in test results.
Smart Images

Figure CN224086149U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filtration device technology, and in particular to a filtration device for measuring silica. Background Technology
[0002] A silica analyzer is an automated analytical instrument used for the rapid and accurate detection of free silica content in samples. It is widely used in occupational hazard detection, environmental monitoring, materials science, and other fields. Its core principle is based on chemical dissolution and physical separation technology: a silica-containing sample is mixed with pyrophosphoric acid and heated, causing the silica to dissolve and react with hydrochloric acid to precipitate solid particles. The silica solids on the filter membrane are separated from the waste liquid by a filtration device, and the content is calculated by measuring the mass difference using a weighing device.
[0003] In silica analyzers, the filtration device consists of a beaker and a conical filter membrane placed on the beaker. In existing technologies, the conical filter membrane is placed directly on top of the beaker. However, in practical applications, existing technologies lack a structure to fix the conical filter membrane to the beaker. When using a conical filter membrane for liquid filtration, if the liquid impact velocity is too high, the following significant drawbacks will occur: the filter paper will shift downwards, allowing unfiltered solid-liquid mixtures to directly enter the beaker, contaminating the filtrate and causing deviations in the test results. Utility Model Content
[0004] To address the technical problem of the lack of a structure for fixing the conical filter membrane to the beaker in the existing technology, this utility model provides a filtration device for silica determination.
[0005] The technical solution adopted by this utility model is: a filtration device for measuring silica, including a beaker and a conical filter membrane disposed on the beaker. Multiple sets of connecting plates are fixedly connected to the outside of the conical filter membrane. Multiple sets of uprights are distributed on the outside of the beaker. A base frame is fixedly connected to the bottom of the uprights. A top ring is fixedly connected to the top of the uprights. The top ring is sleeved on the outside of the beaker. Multiple sets of connecting plates are fixedly connected to the outside of the top ring. An abutment rod is provided through the middle of the connecting plate. A first spring is sleeved on the outside of the abutment rod.
[0006] A further feature of this invention is that an inclined plate is fixedly connected to the outside of the abutting rod, and a toggle frame is provided below the top ring. An abutting wheel is rotatably connected to the position of the inclined plate corresponding to the outside of the toggle frame, and the abutting wheel corresponds to the inclined plate.
[0007] A further feature of this invention is that a sliding sleeve is fixedly connected to the outside of the actuating frame, and the sliding sleeve is sleeved on the outside of the upright.
[0008] A further feature of this invention is that a second spring is sleeved on the outside of the upright, and the two ends of the second spring are respectively fixedly connected to the sliding sleeve and the top ring.
[0009] A further feature of this invention is that a rubber pad is fixedly connected to one end of the abutment rod.
[0010] A further feature of this invention is that the base frame has a hollow structure.
[0011] A further feature of this invention is that the beaker has graduation lines on its exterior.
[0012] The beneficial effects of this utility model are as follows: In this utility model, the conical filter membrane is placed on the beaker, and the connecting pieces are distributed on the side of the beaker. The abutting rod is pushed by the first spring, so that the connecting pieces can abut against the outside of the beaker, thereby fixing the conical filter membrane in the beaker. When filtering the liquid later, even if the impact speed of the liquid is too high, the conical filter paper will not be impacted into the beaker, thus avoiding liquid mixing. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the structure of the beaker in this utility model;
[0015] Figure 3 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 4 This is a cross-sectional structural diagram of the present invention.
[0017] The diagram is marked as follows:
[0018] 1. Upright pole; 2. Base frame; 3. Top ring; 4. Abutting wheel; 5. Connecting plate; 6. Abutting rod; 7. Inclined plate; 8. Conical filter membrane; 9. Connecting piece; 10. Beaker; 11. Actuating frame; 12. First spring; 13. Second spring; 14. Sliding sleeve. Detailed Implementation
[0019] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.
[0020] The following is in conjunction with the appendix Figure 1-4 The present invention will be further described below.
[0021] To address the problems existing in the background art, this application proposes the following technical solution: a filtration device for measuring silica, comprising a beaker 10 and a conical filter membrane 8 disposed on the beaker 10. The beaker 10 has scale lines on its exterior. Multiple sets of connecting pieces 9 are fixedly connected to the exterior of the conical filter membrane 8. The connecting pieces 9 can be rubber sheets or sheet materials of the same material as the conical filter membrane 8. Multiple sets of uprights 1 are distributed on the exterior of the beaker 10. A base frame 2 is fixedly connected to the bottom of the uprights 1. The base frame 2 has a hollow structure and is used to support and place the beaker 10.
[0022] In this embodiment, a top ring 3 is fixedly connected to the top of the upright 1. The top ring 3 is sleeved on the outside of the beaker 10. Multiple sets of connecting plates 5 are fixedly connected to the outside of the top ring 3. A contact rod 6 is provided through the middle of the connecting plate 5. A first spring 12 is sleeved on the outside of the contact rod 6. In order to increase the friction of the contact, a rubber pad is fixedly connected to one end of the contact rod 6.
[0023] The abutment rod 6 is externally fixedly connected to an inclined plate 7. The two ends of the first spring 12 are respectively fixedly connected to the connecting plate 5 and the inclined plate 7. A toggle frame 11 is provided below the top ring 3. Abutment wheels 4 are rotatably connected to the positions of the inclined plates 7 on the outside of the toggle frame 11. The abutment wheels 4 correspond to the inclined plates 7. A sliding sleeve 14 is fixedly connected to the outside of the toggle frame 11. The sliding sleeve 14 is sleeved on the outside of the upright rod 1. A second spring 13 is sleeved on the outside of the upright rod 1. The two ends of the second spring 13 are respectively fixedly connected to the sliding sleeve 14 and the top ring 3, pushing the toggle... The frame 11 moves upward, and the contact wheel 4 contacts the inclined plate 7, causing the contact rod 6 to slide outward at the same time, placing the conical filter membrane 8 on the beaker 10. At the same time, the connecting piece 9 is distributed on the side of the beaker 10. Then the actuating frame 11 is released, and the actuating frame 11 slides downward under the push of gravity and the elastic force of the second spring 13, so that the contact wheel 4 no longer contacts the inclined plate 7, and the contact rod 6, pushed by the first spring 12, can contact the connecting piece 9 against the outside of the beaker 10, thereby fixing the conical filter membrane 8 in the beaker 10.
[0024] The usage method of this embodiment is as follows:
[0025] Push the actuating frame 11 upward, and the abutting wheel 4 abuts against the inclined plate 7, so that the abutting rod 6 slides outward at the same time and no longer abuts against the beaker 10. Then the conical filter membrane 8 is placed on the beaker 10, and the connecting pieces 9 are distributed on the side of the beaker 10.
[0026] Then release the actuating bracket 11. Under the push of gravity and the elastic force of the second spring 13, the actuating bracket 11 slides downward, so that the abutting wheel 4 no longer abuts the inclined plate 7. The abutting rod 6, pushed by the first spring 12, can abut the connecting piece 9 against the outside of the beaker 10, thereby fixing the conical filter membrane 8 in the beaker 10. In the subsequent filtration of liquid, even if the impact speed of the liquid is too high, the conical filter paper will not be impacted into the beaker 10, thus avoiding liquid mixing.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.
Claims
1. A filtration device for measuring silica, characterized in that, The device includes a beaker (10) and a conical filter membrane (8) disposed on the beaker (10). The conical filter membrane (8) is fixedly connected to a number of connecting pieces (9). The beaker (10) is surrounded by a number of uprights (1). The bottom of the uprights (1) is fixedly connected to a base frame (2). The top of the uprights (1) is fixedly connected to a top ring (3). The top ring (3) is sleeved on the outside of the beaker (10). The top ring (3) is fixedly connected to a number of connecting plates (5). The connecting plates (5) are provided with a through rod (6). The outside of the through rod (6) is provided with a first spring (12).
2. The filtration device for measuring silica according to claim 1, characterized in that, An inclined plate (7) is fixedly connected to the outside of the abutment rod (6), and a toggle frame (11) is provided below the top ring (3). An abutment wheel (4) is rotatably connected to the position of the inclined plate (7) corresponding to the outside of the toggle frame (11), and the abutment wheel (4) corresponds to the inclined plate (7).
3. The filtration device for measuring silica according to claim 2, characterized in that, The sliding sleeve (14) is fixedly connected to the outside of the actuating frame (11), and the sliding sleeve (14) is sleeved on the outside of the upright (1).
4. The filtration device for measuring silica according to claim 3, characterized in that, The outside of the upright (1) is fitted with a second spring (13), and the two ends of the second spring (13) are fixedly connected to the sliding sleeve (14) and the top ring (3) respectively.
5. The filtration device for measuring silica according to claim 1, characterized in that, A rubber pad is fixedly connected to one end of the abutment rod (6).
6. The filtration device for measuring silica according to claim 1, characterized in that, The base frame (2) has a hollow structure.
7. The filtration device for measuring silica according to claim 1, characterized in that, The beaker (10) has graduation lines on its outside.