Self-wall-scraping stirring device

By using a spring to provide thrust to the scraper in the mixer, the scraper is ensured to adhere to the container wall, solving the problem of the scraper being unable to scrape the wall when there is no material, thus achieving thorough wall scraping and extending the scraper's lifespan.

CN223530342UActive Publication Date: 2025-11-11CHANGRUNFA MIXING TECH (JIANGSU) CO LTD
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Patent Information

Application Number
CN202422937041.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-11-11
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

The existing mixer scraper cannot adhere to the container wall when there is no material, resulting in incomplete scraping of the wall, and the scraper cannot maintain its contact with the container wall when it floats.

Method used

A spring is used to provide thrust to the scraper, keeping it in a scraping state at all times. The fixed seat and baffle structure ensure that the scraper fits in close contact with the inner wall of the container, and the compensation effect of the spring extends the service life of the scraper.

Benefits of technology

The scraper can completely remove residual material from the container wall regardless of whether there is material inside, thus improving the scraping effect and extending the service life of the scraper.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a self-scraping stirring device which is arranged on a stirrer vertical pipe, the stirrer vertical pipe is arranged on a stirrer main shaft and comprises a fixed seat and a scraping plate, one side of the fixed seat is fixed on the stirrer vertical pipe, baffles are arranged above and below the fixed seat, a plurality of mounting holes are formed in the side, opposite to the stirrer vertical pipe, of the fixed seat, and the scraping plate is arranged in the mounting holes. A spring is arranged in the mounting hole, one end of the spring is arranged in the mounting hole, and the other end of the spring is connected with the scraper blade; according to the self-wall-scraping stirring device, the spring is adopted to provide thrust for the scraping plate, so that the scraping plate is always in a wall-scraping state no matter whether materials exist in a container or not, the materials are scraped thoroughly, the wall-scraping effect is good, and after the scraping plate is abraded, the spring has a certain compensation effect to ensure that the scraping plate is attached to the inner wall of the container.
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Description

Technical Field

[0001] This utility model relates to agitator technology, specifically a self-scraping agitator. Background Technology

[0002] Mixing equipment has been widely used in many industries. The agitator is the main component of the mixing equipment. Due to the different materials being mixed, the specifications and dimensions of the containers, and the diversity of mixing purposes, there are many different types of agitators used.

[0003] During the mixing process, materials or liquids adhere to the inner wall of the container. Therefore, existing mixers have a scraper hinged to the vertical tube of the mixer to fit against the inner wall of the container. When the mixer rotates, the materials or liquids in the container exert a counter-force on the scraper, causing the scraper to stick to the wall and scrape off the material. However, the existing mixer wall scraping device has the following problems:

[0004] 1. When there is no material in the container, the scraper cannot stick to the container wall due to the lack of counter-propulsion force, so it cannot scrape the wall and it is difficult to clean the residual material on the container wall.

[0005] 2. The scraper is floating and rotating, and cannot always stay in contact with the container wall, resulting in poor scraping effect. Utility Model Content

[0006] To overcome the shortcomings of the prior art, this utility model provides a self-scraping mixing device, in which the scraper is always in the scraping state regardless of whether there is material in the container, and the scraping is more thorough.

[0007] To achieve the above technical objectives, the present invention adopts the following technical solution: a self-scraping wall stirring device, which is installed on the vertical tube of a stirrer. The vertical tube of the stirrer is installed on the main shaft of the stirrer and includes a fixed seat and a scraper. One side of the fixed seat is fixed to the vertical tube of the stirrer. Baffles are provided above and below the fixed seat. The fixed seat is provided with several mounting holes on the side of the fixed seat opposite to the vertical tube of the stirrer. Springs are provided in the mounting holes. One end of the spring is located in the mounting hole, and the other end of the spring is connected to the scraper.

[0008] Preferably, the fixed base is provided with blocks at both ends relative to the side of the stirrer vertical tube, and the two blocks are located at both ends of the scraper.

[0009] Preferably, the fixed base has threaded holes at both ends, the baffle has through holes at both ends corresponding to the threaded holes, the baffle has bolts, and the bolts pass through the through holes and engage with the threaded holes.

[0010] Preferably, the angle between the fixed base and the line connecting the stirrer vertical tube and the stirrer main shaft is 30-60 degrees.

[0011] Preferably, the scraper has an inclined surface on the side facing the container wall, and the inclined surface is in contact with the container wall.

[0012] In summary, this utility model achieves the following technical effects:

[0013] The self-scraping wall stirring device of this utility model uses a spring to provide thrust for the scraper, so that the scraper is always in the scraping state regardless of whether there is material in the container, the scraping is more thorough and the scraping effect is better. Moreover, when the scraper is worn, the spring has a certain compensation effect to ensure the scraper adheres to the inner wall of the container. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the assembly structure of the self-scraping wall stirring device of this utility model;

[0015] Figure 2 This is a cross-sectional view of the self-scraping wall stirring device of this utility model;

[0016] The following are the markings on the attached diagrams: 1. Fixing base; 2. Spring; 3. Scraper; 4. Baffle; 5. Bolt; 6. Stirrer vertical tube; 7. Inner wall of container; 8. Threaded hole; 9. Mounting hole. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings.

[0018] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 this utility model and simplifying the description, and are not intended to 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.

[0020] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 utility model according to the specific circumstances.

[0022] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] Example 1:

[0024] like Figure 1 As shown in Figure 2, a self-scraping wall stirring device is installed on the stirrer vertical tube 6. The stirrer vertical tube 6 is installed on the stirrer main shaft and includes a fixed seat 1 and a scraper 3. One side of the fixed seat 1 is fixed to the stirrer vertical tube 6. Baffles 4 are provided above and below the fixed seat 1. The fixed seat 1 has several mounting holes 9 on the side of the stirrer vertical tube 6. Springs 2 are provided in the mounting holes 9. One end of the spring 2 is located in the mounting hole 9, and the other end of the spring 2 is connected to the scraper 3.

[0025] In this embodiment, the self-scraping stirring device uses a spring 2 to provide thrust to the scraper 3, so that the scraper 3 is always in the scraping state regardless of whether there is material in the container, the scraping is more thorough and the scraping effect is better. Moreover, when the scraper 3 is worn, the spring 2 has a certain compensation effect to ensure that the scraper 3 is in contact with the inner wall 7 of the container.

[0026] The fixed base 1 is provided with two stops at both ends relative to the side of the stirrer vertical tube 6. The two stops are located at both ends of the scraper 3. The stops can be used in conjunction with the two baffles 4 to form a rectangular groove, so that the scraper 3 can only move back and forth along the rectangular groove, preventing the scraper 3 from being misaligned and ensuring the scraper 3 is in contact with the inner wall 7 of the container.

[0027] Both ends of the fixed base 1 are provided with threaded holes 8, both ends of the baffle 4 are provided with through holes corresponding to the threaded holes 8, and the baffle 4 is provided with bolts 5, which are threaded into the threaded holes 8 after passing through the through holes.

[0028] The angle between the fixed seat 1 and the line connecting the stirrer vertical tube 6 and the stirrer main shaft is 30-60 degrees. The scraper 3 has an inclined surface facing the container wall, and the inclined surface is in contact with the container wall. The inclined fixed seat 1 and scraper 3 can be pushed by the material or liquid during stirring, which ensures that the scraper 3 has a greater adhesion to the inner wall 7 of the container and improves the scraping effect.

[0029] The depth of the mounting hole 9 is less than the length of the spring 2. The fixing seat 1 is welded and fixed to the stirrer vertical tube 6. First, the baffle 4 on one side is fixed with bolt 5. Then, the spring 2 is placed in the mounting hole 9. After the scraper 3 compresses the spring 2 and flattens with the baffle 4, the other baffle 4 is fixed with bolt 5, so that the scraper 3 is fixed between the two baffles 4. With the compression of the spring 2, the spring 2 always has an outward elastic force on the scraper 3, so that the scraper 3 always adheres to the container wall.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A self-scraping wall-mixing device, disposed in the vertical tube of a mixer, wherein the vertical tube is disposed in the main shaft of the mixer, characterized in that, It includes a fixed base and a scraper. One side of the fixed base is fixed to the vertical tube of the agitator. Baffles are provided above and below the fixed base. The fixed base has several mounting holes on the side opposite to the vertical tube of the agitator. Springs are provided in the mounting holes. One end of the spring is located in the mounting hole and the other end of the spring is connected to the scraper.

2. The self-scraping wall stirring device according to claim 1, characterized in that, The fixed base is provided with blocks at both ends relative to the side of the stirrer vertical tube, and the two blocks are located at both ends of the scraper.

3. The self-scraping wall stirring device according to claim 1, characterized in that, Both ends of the fixed base are provided with threaded holes, both ends of the baffle are provided with through holes corresponding to the threaded holes, the baffle is provided with bolts, and the bolts pass through the through holes and are threadedly engaged with the threaded holes.

4. The self-scraping wall stirring device according to claim 1, characterized in that, The angle between the fixed base and the line connecting the stirrer vertical tube and the stirrer main shaft is 30-60 degrees.

5. The self-scraping wall stirring device according to claim 1, characterized in that, The scraper has an inclined surface on the side facing the container wall, and the inclined surface is in contact with the container wall.