Glass shaft stirrer and locking structure thereof

Abstract

The utility model relates to a glass shaft stirrer and a locking structure thereof, the locking structure comprises a locking nut, an upper fastening sleeve, a supporting tube and a lower fastening sleeve which are sequentially arranged from top to bottom, the locking nut, the upper fastening sleeve, the supporting tube and the lower fastening sleeve are coaxially arranged, and through holes are vertically formed in the middle parts of the locking nut, the upper fastening sleeve, the supporting tube and the lower fastening sleeve in a penetrating manner; an opening is formed in the lower end of the locking nut, a first positioning groove and a first mounting groove are sequentially formed in the locking nut from top to bottom, the upper fastening sleeve is mounted in the first positioning groove, the lower surface of the upper fastening sleeve is in contact with the upper surface of the supporting pipe, and the lower surface of the supporting pipe is in contact with the upper surface of the lower fastening sleeve; the glass shaft stirrer comprises the locking structure, a stirring shaft and a stirring blade on the glass shaft stirrer. The utility model has the beneficial effects of meeting the production requirements of parts without metal materials, and being high in structural strength, strong in generality and the like.

Description

Technical Field

[0001] The utility model relates to a stirrer, in particular to a glass shaft stirrer and a locking structure thereof, belonging to the technical field of stirrers. Background Art

[0002] With the continuous development of new technologies such as artificial intelligence and the Internet of Things, the application scenarios of semiconductors will become more and more extensive. It is also one of the rapidly developing industries in recent years. It involves multiple fields such as electronics, communications, and computers, and is one of the cores of modern information technology. The production process of semiconductor-related products involves the stirring and mixing reactions of raw materials. Due to the particularity of semiconductor materials, their production process strictly avoids contact with metal materials, so there are strict requirements on the material composition of their stirring equipment. Stirring equipment is mainly used for mixing (such as blending, emulsification, dispersion, solid suspension, etc.), mass transfer (such as dissolution, gas absorption, crystallization, extraction, etc.), heat transfer (heating and cooling in the stirring container), etc. in the process. The agitator should meet the requirements of the operating conditions and should meet the requirements of the strength, stiffness and other mechanical properties of the shaft.

[0003] Existing agitators are roughly divided into the following types according to their materials: pure metal agitators, glass-lined agitators (metal-clad ceramic), metal-coated polytetrafluoroethylene agitators and all-glass agitators. The materials of pure metal agitators do not meet production requirements. Glass-lined agitators have a lower risk of metal exposure, but their size is relatively large and they are mainly used in large-scale production processes. Metal-coated polytetrafluoroethylene agitators can be used in small and medium-sized batch production, but the expansion coefficients of the two materials are very different, and there is a risk of leakage at the polytetrafluoroethylene interface. All-glass agitators are non-metallic agitators, but their manufacturing process is complicated and requires a lot of cost to make molds. They cannot be widely used in the initial stages of testing or production.

[0004] Therefore, the present application designs a glass shaft stirrer and a locking structure thereof. Utility Model Content

[0005] The utility model is mainly aimed at the above-mentioned problems existing in the prior art, and provides a glass shaft agitator and a locking structure thereof, the structure size of which is suitable for small and medium batch production, and the whole is made of non-metallic materials, which is very consistent with the production requirements of non-metallic parts, and the structure is easy to clean and meets the cleanliness requirements.

[0006] The purpose of this utility model is mainly achieved through the following solutions:

[0007] A locking structure comprises a locking nut, an upper fastening sleeve, a support tube and a lower fastening sleeve which are arranged in sequence from top to bottom, wherein the locking nut, the upper fastening sleeve, the support tube and the lower fastening sleeve are coaxially arranged and vertically penetrated by through holes in the middle thereof; the lower end of the locking nut is open, and a first positioning groove and a first mounting groove are arranged in sequence inside the locking nut from top to bottom, the upper fastening sleeve is installed in the first positioning groove, the lower surface of the upper fastening sleeve contacts the upper surface of the support tube, and the lower surface of the support tube contacts the upper surface of the lower fastening sleeve.

[0008] Preferably, the upper fastening sleeve and the lower fastening sleeve both adopt a truncated cone structure, with the large bottom surface of the upper fastening sleeve facing downwards and the large bottom surface of the lower fastening sleeve facing upwards.

[0009] Preferably, upper and lower ends of the upper fastening sleeve and the lower fastening sleeve are respectively provided with upper notches and lower notches along their wall surfaces, and the upper notches and lower notches are alternately arranged.

[0010] Preferably, the locking nut is made of polytetrafluoroethylene, and the upper fastening sleeve, the support tube and the lower fastening sleeve are all made of polypropylene.

[0011] In order to achieve the above-mentioned purpose, the second aspect of the utility model provides a glass shaft agitator, including the above-mentioned locking structure, a stirring shaft and a stirring blade; the stirring blade includes a connecting sleeve and blades evenly arranged on the outer wall of the connecting sleeve, the upper end of the connecting sleeve is open, and a limit groove, a second positioning groove and a second installation groove are arranged in sequence from bottom to top inside thereof, and the lower end of the stirring shaft passes through the through holes of the locking nut, the upper fastening sleeve, the support tube and the lower fastening sleeve in sequence and is connected to the limit groove.

[0012] Preferably, the limiting groove is a waist-shaped groove, and the lower end of the stirring shaft is integrally provided with a limiting block matched with the limiting groove.

[0013] Preferably, the lower fastening sleeve is installed at the second positioning groove, the support tube is installed at the second installation groove, and the upper end of the support tube extends out of the upper surface of the connecting sleeve.

[0014] Preferably, an outer thread is provided on the outer wall of the upper end of the connecting sleeve, an inner thread is provided on the inner wall of the first mounting groove near the upper portion, and the locking nut and the stirring blade are threadedly connected.

[0015] Preferably, a circle of first sealing grooves is provided at the through hole of the locking nut, and a circle of second sealing grooves is provided on the outer wall of the connecting sleeve below the external thread, and O-rings are installed in both the first sealing groove and the second sealing groove.

[0016] Preferably, the stirring shaft is made of borosilicate glass, and the stirring blades are made of polytetrafluoroethylene.

[0017] Therefore, compared with the prior art, the utility model has the following advantages:

[0018] (1) The utility model has a stirring blade made of polytetrafluoroethylene material and a stirring shaft made of borosilicate glass material, and the stirring blade and the stirring shaft are connected and locked by a locking structure. The stirring blade, the stirring shaft and the locking structure are all made of non-metallic materials and have high corrosion resistance, which is very consistent with the production requirements of non-metallic parts. It has the advantages of strong chemical resistance, high temperature resistance and impact resistance, and has good insulation performance. It can meet the stirring of materials at a temperature of -80℃ to +200℃, and is suitable for stirring equipment of small and medium-sized containers of 0.5L to 100L;

[0019] (2) The utility model provides a locking nut, an upper fastening sleeve, a support tube and a lower fastening sleeve, wherein the locking nut and the stirring blade are threadedly connected. The upper fastening sleeve and the lower fastening sleeve are both truncated cone-shaped structures with upper and lower openings. When the locking nut and the stirring blade are tightened together, pressure can be generated on the conical surfaces of the upper fastening sleeve and the lower fastening sleeve. Since the upper fastening sleeve and the lower fastening sleeve are both provided with upper notches and lower notches, the generated pressure can force the upper fastening sleeve and the lower fastening sleeve to undergo elastic deformation, thereby achieving effective locking between the stirring shaft, the locking nut and the stirring blade, thereby ensuring the reliability of the connection. In addition, an O-ring is provided between the connecting parts of the stirring blade, the stirring shaft and the locking structure to prevent materials from entering the interior of the agitator, thereby facilitating the cleaning of the agitator.

[0020] (3) The locking structure provided in the utility model can facilitate the installation and disassembly between the stirring blade and the stirring shaft, and different stirring blades can be replaced, which has strong versatility and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a top view of the utility model;

[0022] Figure 2 yes Figure 1 Sectional view in the AA direction;

[0023] Figure 3 It is a structural schematic diagram of the stirring shaft in the utility model;

[0024] Figure 4 It is a bottom view of the stirring shaft in the utility model;

[0025] Figure 5 It is a top view of the stirring blade in the utility model;

[0026] Figure 6 yes Figure 5 Cross-sectional view in the BB direction;

[0027] Figure 7It is a structural schematic diagram of the upper fastening sleeve in the utility model;

[0028] Figure 8 It is a top view of the upper fastening sleeve in the utility model.

[0029] Illustration: 1-locking nut, 11-first positioning groove, 12-first installation groove, 13-internal thread, 14-first sealing groove;

[0030] 2-upper fastening sleeve, 21-upper notch, 22-lower notch;

[0031] 3- Support tube;

[0032] 4-Lower fastening sleeve;

[0033] 5- stirring shaft, 51- limiting block;

[0034] 6-stirring blade, 61-connecting sleeve, 62-blade, 63-limiting groove, 64-second positioning groove, 65-second mounting groove, 66-external thread, second sealing groove;

[0035] 7-O-ring. DETAILED DESCRIPTION

[0036] The technical solution of the utility model is further described in detail below through specific embodiments and in combination with the accompanying drawings. It should be understood that the implementation of the utility model is not limited to the following embodiments, and any form of modification and / or change made to the utility model will fall within the protection scope of the utility model.

[0037] In the present invention, unless otherwise specified, all parts and percentages are weight units, and the equipment and raw materials used can be purchased from the market or are commonly used in the field. The methods in the following embodiments, unless otherwise specified, are conventional methods in the field. The components or equipment in the following embodiments, unless otherwise specified, are universal standard parts or components known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or conventional experimental methods.

[0038] Example:

[0039] like Figure 1 , 2As shown, the utility model provides a technical solution, a locking structure, which is composed of a locking nut 1, an upper fastening sleeve 2, a support tube 3 and a lower fastening sleeve 4 which are arranged in sequence from top to bottom. The locking nut 1, the upper fastening sleeve 2, the support tube 3 and the lower fastening sleeve 4 are coaxially arranged, and through holes are vertically penetrated in the middle parts of the locking nut 1; the lower end of the locking nut 1 is open and presents an inverted U-shaped structure, and a first positioning groove 11 and a first installation groove 12 are arranged in sequence inside the locking nut 1 from top to bottom; the upper fastening sleeve 2 is installed in the first positioning groove 11, and the lower surface of the upper fastening sleeve 2 contacts the upper surface of the support tube 3, and the lower surface of the support tube 3 contacts the upper surface of the lower fastening sleeve 4.

[0040] like Figure 7 , 8 As shown, the upper fastening sleeve 2 and the lower fastening sleeve 4 both adopt a truncated cone structure, and the large bottom surface of the upper fastening sleeve 2 faces downward, and the large bottom surface of the lower fastening sleeve 4 faces upward. The upper and lower ends of the upper fastening sleeve 2 and the lower fastening sleeve 4 are respectively provided with an upper notch 21 and a lower notch 22 along their wall surfaces. The upper notch 21 and the lower notch 22 are both evenly arranged along their axis, and the upper notch 21 and the lower notch 22 are staggered. The first positioning groove 11 should be a tapered slot hole that is small at the top and large at the bottom to ensure the adaptive connection with the upper fastening sleeve 2, and the first mounting groove 12 is a circular slot hole.

[0041] Specifically, the locking nut 1 is made of polytetrafluoroethylene, and the upper fastening sleeve 2, the support tube 3 and the lower fastening sleeve 4 are all made of polypropylene.

[0042] like Figure 1 , 2 As shown, the utility model also provides a glass shaft stirrer, which is composed of the above-mentioned locking structure, a stirring shaft 5 and a stirring blade 6; the above-mentioned stirring blade 6 is composed of an integrally formed connecting sleeve 61 and blades 62 evenly arranged on the outer wall of the connecting sleeve 61, and the blades 62 are evenly arranged along the axis of the connecting sleeve 61. The upper end of the connecting sleeve 61 is open and the lower end is closed, and a limiting groove 63, a second positioning groove 64 and a second installation groove 65 are arranged in sequence from bottom to top inside thereof, and the lower end of the stirring shaft 5 passes through the through holes of the locking nut 1, the upper fastening sleeve 2, the support tube 3 and the lower fastening sleeve 4 in sequence and is connected to the limiting groove 63.

[0043] Specifically, the limiting groove 63 is a waist-shaped groove, and the lower end of the stirring shaft 5 is integrally provided with a limiting block 51 adapted to the limiting groove 63 to prevent the agitator from having relative movement with the stirring shaft 5 when stirring materials.

[0044] Specifically, the lower fastening sleeve 4 is installed at the second positioning groove 64, the support tube 3 is installed at the second installation groove 65, and the upper end of the support tube 3 extends out of the upper surface of the connecting sleeve 61. The second positioning groove 64 should be a conical slot hole with a larger upper part and a smaller lower part to ensure the adaptive connection with the lower fastening sleeve 4. The second installation groove 65 is a circular slot hole.

[0045] Specifically, an outer thread 66 is provided on the outer wall of the upper end of the connecting sleeve 61, and an inner thread 13 is provided on the inner wall of the first mounting groove 12 near the upper part. The locking nut 1 and the stirring blade 6 are threadedly connected through the outer thread 66 and the inner thread 13.

[0046] Specifically, a circle of first sealing grooves 14 is formed at the through hole of the locking nut 1, and a circle of second sealing grooves 67 is formed on the outer wall of the connecting sleeve 61 below the external thread 66. O-rings 7 are installed in both the first sealing groove 14 and the second sealing groove 67, and the O-rings 7 are made of rubber.

[0047] Specifically, the stirring shaft 5 is made of borosilicate glass, and the stirring blade 6 is made of polytetrafluoroethylene.

[0048] When installing a glass shaft stirrer provided by the utility model, firstly install two O-rings 7 into the first sealing groove 14 of the locking nut 1 and the second sealing groove 67 of the stirring blade 6 respectively, then sequentially insert the locking nut 1, the upper fastening sleeve 2, the support tube 3, and the lower fastening sleeve 4 into the stirring shaft 5, put the lower end of the stirring shaft 5 into the limiting groove 63 of the stirring blade 6, and finally tighten the locking nut 1 and the thread of the stirring blade 6.

[0049] The stirring shaft 5 in the present application is made of 3.3 borosilicate glass, and the stirring blade 6 and the locking nut 1 are both made of polytetrafluoroethylene. 3.3 borosilicate glass has strong chemical resistance, high temperature resistance and impact resistance, good insulation performance and high dielectric strength. Polytetrafluoroethylene, as an important member in the field of fluoroplastics, has excellent properties such as solvent resistance, corrosion resistance and penetration resistance, and is very in line with the production requirements of non-metal parts.

[0050] The utility model provides a glass shaft agitator and a locking structure thereof, wherein a stirring blade made of polytetrafluoroethylene material and a stirring shaft made of borosilicate glass material are arranged, the stirring blade and the stirring shaft are connected and locked by a locking structure, the stirring blade, the stirring shaft and the locking structure are all made of non-metallic materials and have high corrosion resistance, which is very consistent with the production requirements of non-metallic parts, has the advantages of strong chemical resistance, high temperature resistance and strong impact resistance, and has good insulation performance, can meet the stirring of materials at a temperature of -80°C to +200°C, and is suitable for stirring equipment of small and medium-sized containers of 0.5L to 100L; through the arranged locking nut, upper fastening sleeve, support tube and lower fastening sleeve, the locking nut is threadedly connected to the stirring blade, the upper fastening sleeve The upper and lower fastening sleeves are both truncated cone-shaped structures with upper and lower openings. When the locking nut and the stirring blade are tightened together, pressure can be generated on the conical surfaces of the upper and lower fastening sleeves. Since the upper and lower fastening sleeves are both provided with upper and lower notches, the generated pressure can force the upper and lower fastening sleeves to undergo elastic deformation, thereby achieving effective locking between the stirring shaft, the locking nut and the stirring blades, thereby ensuring the reliability of the connection. In addition, O-rings are provided between the connecting parts of the stirring blades, the stirring shaft and the locking structure to prevent materials from entering the interior of the agitator, thereby facilitating the cleaning of the agitator. The locking structure provided can facilitate the installation and disassembly of the stirring blades and the stirring shaft, and different stirring blades can be replaced, with strong versatility and practicality.

[0051] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. A locking structure, characterized in that: The invention comprises a locking nut (1), an upper fastening sleeve (2), a support tube (3) and a lower fastening sleeve (4) which are arranged in sequence from top to bottom. The locking nut (1), the upper fastening sleeve (2), the support tube (3) and the lower fastening sleeve (4) are coaxially arranged and have through holes vertically penetrating through their middle parts. The lower end of the locking nut (1) is open and a first positioning groove (11) and a first mounting groove (12) are arranged in sequence in its interior from top to bottom. The upper fastening sleeve (2) is installed in the first positioning groove (11). The lower surface of the upper fastening sleeve (2) contacts the upper surface of the support tube (3), and the lower surface of the support tube (3) contacts the upper surface of the lower fastening sleeve (4).

2. The locking structure according to claim 1, characterized in that: The upper fastening sleeve (2) and the lower fastening sleeve (4) both adopt a truncated cone structure, with the large bottom surface of the upper fastening sleeve (2) facing downwards and the large bottom surface of the lower fastening sleeve (4) facing upwards.

3. The locking structure according to claim 2, characterized in that: An upper notch (21) and a lower notch (22) are respectively provided along the wall surfaces of the upper and lower ends of the upper fastening sleeve (2) and the lower fastening sleeve (4), and the upper notch (21) and the lower notch (22) are arranged alternately.

4. The locking structure according to claim 3, characterized in that: The locking nut (1) is made of polytetrafluoroethylene, and the upper fastening sleeve (2), the support tube (3) and the lower fastening sleeve (4) are all made of polypropylene.

5. A glass shaft stirrer, characterized in that: The invention comprises a locking structure as claimed in any one of claims 1 to 4, a stirring shaft (5) and a stirring blade (6); the stirring blade (6) comprises a connecting sleeve (61) and blades (62) evenly arranged on the outer wall of the connecting sleeve (61); the upper end of the connecting sleeve (61) is open, and a limiting groove (63), a second positioning groove (64) and a second installation groove (65) are arranged in sequence from bottom to top inside the connecting sleeve; the lower end of the stirring shaft (5) passes through the through holes of the locking nut (1), the upper fastening sleeve (2), the support tube (3) and the lower fastening sleeve (4) in sequence and is connected to the limiting groove (63).

6. The glass shaft stirrer according to claim 5, characterized in that: The limiting groove (63) is a waist-shaped groove, and the lower end of the stirring shaft (5) is integrally provided with a limiting block (51) that matches the limiting groove (63).

7. The glass shaft stirrer according to claim 6, characterized in that: The lower fastening sleeve (4) is installed at the second positioning groove (64), the support tube (3) is installed at the second installation groove (65), and the upper end of the support tube (3) protrudes from the upper surface of the connecting sleeve (61).

8. The glass shaft stirrer according to claim 7, characterized in that: An external thread (66) is provided on the outer wall of the upper end of the connecting sleeve (61), an internal thread (13) is provided on the inner wall of the first mounting groove (12) near the upper portion, and the locking nut (1) and the stirring blade (6) are threadedly connected.

9. The glass shaft stirrer according to claim 8, characterized in that: A circle of first sealing grooves (14) are formed at the through hole of the locking nut (1), and a circle of second sealing grooves (67) are formed on the outer wall of the connecting sleeve (61) below the external thread (66). O-rings (7) are installed in both the first sealing groove (14) and the second sealing groove (67).

10. The glass shaft stirrer according to claim 9, characterized in that: The stirring shaft (5) is made of borosilicate glass, and the stirring blade (6) is made of polytetrafluoroethylene.

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