Stirring paddle suitable for glass kettle

Abstract

The utility model discloses a stirring paddle suitable for a glass kettle, which comprises a stirring shaft used for stirring corrosive chemicals; the surface of the upper stirring paddle blade assembly is fixedly connected with the surface of the stirring shaft, the upper stirring paddle blade assembly is used for stirring corrosive chemicals, and the bottom stirring paddle blade assembly is used for stirring the corrosive chemicals; the utility model relates to the technical field of stirring paddles. According to the stirring paddle suitable for the glass kettle, the stirring shaft is arranged, a small section of stainless steel rod is exposed out of the stainless steel cylindrical rod and used for clamping and transmitting power of a stirrer, the first polytetrafluoroethylene coating is in a cylindrical shape with the outer diameter being 20 mm, the surface is smooth and uniform, stirring and sealing are facilitated, and the diameter is increased through the second polytetrafluoroethylene coating; the coating plane is provided with two opposite planes on the polytetrafluoroethylene cylindrical surface, and the two planes are used for fixing the upper stirring blade assembly and preventing the stirring blade assembly from sliding left and right.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring paddles, in particular to a stirring paddle suitable for a glass kettle. Background Art

[0002] A stirring paddle is a tool for stirring. In chemical experiments, since corrosive chemicals such as acids, alkalis, and organic solvents are often used, the stirring shaft of the stirring paddle is usually a stainless steel rod with a PTFE tube sleeved outside, and then the PTFE stirring blade assembly is fixed at a certain height through fasteners, so as to effectively stir the reaction liquid.

[0003] The patent with the publication number of CN201120263Y discloses an enamel double-fold plate type stirrer, belonging to the field of chemical mixing and stirring equipment. It includes a stirring shaft and paddle blades, and the paddle blades are fixed on the stirring shaft. Its characteristics are: the paddle blades are plate-shaped, welded on the stirring shaft, and the surface is coated with an enamel layer. Compared with the prior art, it has a wide applicable liquid viscosity range for stirring of 1 - 10000MPa.s; it is especially suitable for stirring occasions with high viscosity and solid particles, and has a good solid particle suspension effect; it improves the stirring range at the bottom of the kettle, can realize the stirring of a small amount of solution, and reduces the stirring dead angle; the stirring paddle blades are wide and large, with excellent heat transfer characteristics, the blades are flat, and a large circulation flow rate can be obtained. It can effectively realize the reaction, mixing, heat transfer, crystallization, etc. of materials in a short time, and the shape of the blade head can be made according to the shape of the bottom of the enamel tank, with good applicability and other advantages.

[0004] As shown in the above technology, the outer PTFE tube is sleeved on the stainless steel rod by high-temperature expansion. When the torque increases, it is easy to detach and deform locally from the inner stainless steel rod. At the same time, the bottom stirring paddle blade assembly is fixed to the stirring shaft through thread fastening to achieve transmission and seal the stainless steel rod to prevent the reaction liquid from contaminating it. When the motor rotates in reverse, this paddle blade is very easy to fall off. In addition, after long-term immersion, the reaction liquid is also very easy to penetrate into the interior and corrode the stainless steel rod, causing it to rust, and then in turn pollute the reaction liquid; the fixing force surfaces between the stirring blade assembly and the stirring shaft are all smooth cylinders, so it is very easy to slip or the whole slips off. If rivets or welding are used for reinforcement, the upper stirring paddle blade assembly cannot adjust the paddle height according to the amount of the reaction liquid, seriously affecting the stirring effect. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, the present utility model provides a stirring paddle suitable for a glass kettle, which solves the problems that the PTFE tube of the outer sleeve is sleeved on the stainless steel rod by high-temperature expansion. When the torque is increased, the local part is easily separated from the inner stainless steel rod and deformed and damaged. At the same time, the bottom stirring paddle blade assembly is fixed to the stirring shaft through threads to realize transmission and sealing of the stainless steel rod to prevent the reaction liquid from contaminating it. When the motor rotates in reverse, this paddle blade is easily detached. In addition, after long-term immersion, the reaction liquid is also easily immersed into the interior to corrode the stainless steel rod, causing it to rust, and then in turn contaminating the reaction liquid; the fixing force surfaces between the stirring blade assembly and the stirring shaft are all smooth cylinders, so it is very easy to slip, or the whole slips off. If rivets or welding are used for reinforcement, the upper stirring paddle blade assembly cannot adjust the paddle blade height according to the amount of the reaction liquid, seriously affecting the stirring effect.

[0006] To achieve the above objectives, the present utility model is realized through the following technical solutions: A stirring paddle suitable for a glass kettle, comprising:

[0007] A stirring shaft, which is used for stirring corrosive chemicals;

[0008] An upper stirring paddle blade assembly, the surface of which is fixedly connected to the surface of the stirring shaft, and the upper stirring paddle blade assembly is used for stirring corrosive chemicals;

[0009] A bottom stirring paddle blade assembly, the surface of which is fixedly connected to the surface of the stirring shaft, and the bottom stirring paddle blade assembly is used for stirring corrosive chemicals.

[0010] Preferably, the stirring shaft includes a stainless steel cylindrical rod, the surface of the stainless steel cylindrical rod is coated with a first tetrafluoro coating, the bottom of the surface of the stainless steel cylindrical rod is coated with a second tetrafluoro coating, the second tetrafluoro coating includes a coating plane and a coating groove, and a tray is fixedly connected to the bottom end of the stainless steel cylindrical rod.

[0011] Preferably, the upper stirring paddle blade assembly includes an upper stirring blade, an upper fastening nut penetrates through the surface of the upper stirring blade, the upper fastening nut includes an upper nut body, an upper fastening screw penetrates through the surface of the upper nut body, and an upper protruding ring is arranged on the inner wall of the upper fastening screw.

[0012] Preferably, an upper connecting cavity is arranged inside the upper nut body, and an upper wedge-shaped front end is arranged at the top of the upper fastening screw.

[0013] Preferably, the bottom stirring paddle blade assembly includes bottom stirring blades, and the surface of the bottom stirring blades is penetrated by bottom fastening nuts. The bottom fastening nuts include bottom nut bodies, and the surfaces of the bottom nut bodies are penetrated by bottom fastening screws. A bottom raised ring is arranged on the inner wall of the bottom fastening screws.

[0014] Preferably, a bottom card slot is arranged at the bottom of the inner wall of the bottom nut body, a bottom connection cavity is arranged inside the bottom nut body, and a bottom wedge-shaped front end is arranged at the top of the bottom fastening screw.

[0015] Beneficial effects

[0016] The utility model provides a stirring paddle suitable for a glass kettle. Compared with the prior art, the following

[0017] Beneficial effects are as follows:

[0018] (1). For the stirring paddle suitable for the glass kettle, by means of the arrangement of the stirring shaft, a small section of stainless steel rod is exposed from the stainless steel cylindrical rod for the stirrer to clamp and transmit power. The first PTFE coating is in the shape of a cylinder with an outer diameter of 20 MM, and the surface is smooth and uniform, which is convenient for stirring and sealing. The second PTFE coating has a larger diameter, and there are two opposite planes on the PTFE cylindrical surface for the fixation of the upper stirring paddle blade assembly to prevent left - right sliding. The coating grooves are evenly distributed on the PTFE cylindrical surface from top to bottom with many grooves for the positioning and fastening of the upper stirring paddle blade assembly to prevent up - down sliding. The tray is used to hold and assist in fixing the bottom stirring paddle blade assembly.

[0019] (2). For the stirring paddle suitable for the glass kettle, by means of the arrangement of the upper stirring paddle blade assembly and the bottom stirring paddle blade assembly, the upper fastening screw is used to fasten the upper stirring paddle blade assembly of the stirring paddle. The upper wedge-shaped front end is convenient for the upper nut body to be sleeved and fastened. The upper raised ring can be buckled into a groove with a suitable height in the coating groove for the positioning and fastening of the upper stirring paddle blade assembly to prevent up - down sliding. The upper connection cavity is made in this shape to cooperate with the two opposite planes on the coating plane for the fixation of the upper stirring paddle blade assembly to prevent left - right sliding. The bottom fastening screw is used to fasten the upper stirring paddle blade assembly of the stirring paddle. The bottom wedge-shaped front end is convenient for the bottom nut body to be sleeved and fastened. The bottom raised ring can be buckled into a groove with a suitable height in the coating groove for the positioning and fastening of the upper stirring paddle blade assembly to prevent up - down sliding. The bottom card slot is clamped into the tray for holding and assisting in fixing the bottom of the bottom stirring paddle blade assembly. The bottom connection cavity is made in this shape to cooperate with the two opposite planes on the coating plane for the fixation of the upper stirring paddle blade assembly to prevent left - right sliding. Description of the drawings

[0020] Figure 1 is the overall schematic diagram of the utility model;

[0021] Figure 2 Schematic diagram of the stirring shaft structure of the present utility model;

[0022] Figure 3 The present utility model Figure 2 Partial enlarged view of the A position in;

[0023] Figure 4 Cross-sectional view of the first tetrafluoro coating of the present utility model;

[0024] Figure 5 Cross-sectional view of the coating plane of the present utility model;

[0025] Figure 6 Schematic diagram of the upper stirring paddle blade assembly of the present utility model;

[0026] Figure 7 Schematic diagram of the bottom stirring paddle blade assembly of the present utility model.

[0027] In the figure: 1, stirring shaft; 11, stainless steel cylindrical rod; 12, first tetrafluoro coating; 13, second tetrafluoro coating; 131, coating plane; 132, coating groove; 14, tray; 2, upper stirring paddle blade assembly; 21, upper stirring blade; 22, upper fastening nut; 221, upper nut body; 222, upper wedge-shaped front end; 223, upper fastening screw; 224, upper raised ring; 225, upper connection cavity; 3, bottom stirring paddle blade assembly; 31, bottom stirring blade; 32, bottom fastening nut; 321, bottom nut body; 322, bottom wedge-shaped front end; 323, bottom fastening screw; 324, bottom raised ring; 325, bottom card slot; 326, bottom connection cavity. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0029] Please refer to Figures 1 - 7 , the present utility model provides two technical solutions:

[0030] Embodiment 1, a stirring paddle suitable for a glass kettle, including:

[0031] Stirring shaft 1, and the stirring shaft 1 is used for stirring corrosive chemicals;

[0032] The upper stirring paddle blade assembly 2, the surface of the upper stirring paddle blade assembly 2 is fixedly connected to the surface of the stirring shaft 1, and the upper stirring paddle blade assembly 2 is used for stirring corrosive chemicals;

[0033] The bottom stirring paddle blade assembly 3, the surface of the bottom stirring paddle blade assembly 3 is fixedly connected to the surface of the stirring shaft 1, and the bottom stirring paddle blade assembly 3 is used for stirring corrosive chemicals. With the setting of the stirring shaft 1, a small section of stainless steel rod of the stainless steel cylindrical rod 11 is exposed, which is used for the stirrer to clamp and transmit power. The first tetrafluoro coating 12 is cylindrical with an outer diameter of 20 MM, and its surface is smooth and uniform, facilitating stirring and sealing. The second tetrafluoro coating 13 has an increased diameter. There are two opposite planes on the tetrafluoro cylindrical surface of the coating plane 131, which are used for the fixation of the upper stirring paddle blade assembly to prevent left - right sliding. The coating groove 132 is evenly distributed with many grooves from top to bottom on the tetrafluoro cylindrical surface, which is used for the positioning and fastening of the upper stirring paddle blade assembly to prevent up - down sliding. The tray 14 is used to hold and assist in fixing the bottom stirring paddle blade assembly.

[0034] Embodiment 2, the main difference from Embodiment 1 is: A stirring paddle suitable for a glass kettle, the stirring shaft 1 includes a stainless steel cylindrical rod 11, the surface of the stainless steel cylindrical rod 11 is coated with a first tetrafluoro coating 12, and the bottom of the surface of the stainless steel cylindrical rod 11 is coated with a second tetrafluoro coating 13. The second tetrafluoro coating 13 includes a coating plane 131 and a coating groove 132. A tray 14 is fixedly connected to the bottom end of the stainless steel cylindrical rod 11. The upper stirring paddle blade assembly 2 includes upper stirring blades 21. The surface of the upper stirring blades 21 is penetrated by an upper fastening nut 22. The upper fastening nut 22 includes an upper nut body 221. The surface of the upper nut body 221 is penetrated by an upper fastening screw 223. An upper protruding ring 224 is provided on the inner wall of the upper fastening screw 223. An upper connecting cavity 225 is provided inside the upper nut body 221. The top of the upper fastening screw 223 is provided with an upper wedge-shaped front end 222. The bottom stirring paddle blade assembly 3 includes bottom stirring blades 31. The surface of the bottom stirring blades 31 is penetrated by a bottom fastening nut 32. The bottom fastening nut 32 includes a bottom nut body 321. The surface of the bottom nut body 321 is penetrated by a bottom fastening screw 323. A bottom protruding ring 324 is provided on the inner wall of the bottom fastening screw 323. A bottom card slot 325 is provided at the bottom of the inner wall of the bottom nut body 321. A bottom connecting cavity 326 is provided inside the bottom nut body 321. The top of the bottom fastening screw 323 is provided with a bottom wedge-shaped front end 322. By using the upper stirring paddle blade assembly 2 and the bottom stirring paddle blade assembly 3, the upper fastening screw 223 is used to fasten the upper stirring paddle blade assembly of the stirring paddle. The upper wedge-shaped front end 222 facilitates the insertion and fastening of the upper nut body 221. The upper protruding ring 224 can be buckled into a groove with a suitable height in the coating groove 132 for positioning and fastening the upper stirring paddle blade assembly to prevent it from slipping up and down. The upper connecting cavity 225 is made in this shape to cooperate with two opposite planes on the coating plane 131 for fixing the upper stirring paddle blade assembly to prevent it from sliding left and right. The bottom fastening screw 323 is used to fasten the upper stirring paddle blade assembly of the stirring paddle. The bottom wedge-shaped front end 322 facilitates the insertion and fastening of the bottom nut body 321. The bottom protruding ring 324 can be buckled into a groove with a suitable height in the coating groove 132 for positioning and fastening the upper stirring paddle blade assembly to prevent it from slipping up and down. The bottom card slot 325 is snapped into the tray 14 to hold and assist in fixing the bottom of the bottom stirring paddle blade assembly. The bottom connecting cavity 326 is made in this shape to cooperate with two opposite planes on the coating plane 131 for fixing the upper stirring paddle blade assembly to prevent it from sliding left and right.

[0035] The stirring shaft 1 of the stirring paddle is integrally formed by high temperature using a mold. The external tetrafluoro material completely wraps the internal stainless steel solid round bar, and there is no longer any chance of contact with external materials. At the same time, there is no possibility of partial detachment between the two materials.

[0036] Meanwhile, the content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0037] It should be noted that, in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0038] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stirring paddle suitable for a glass kettle, characterized in that, Comprising: A stirring shaft (1) for performing a stirring operation on corrosive chemicals; An upper stirring paddle blade assembly (2) whose surface is fixedly connected to the surface of the stirring shaft (1) for performing a stirring operation on corrosive chemicals; A bottom stirring paddle blade assembly (3) whose surface is fixedly connected to the surface of the stirring shaft (1) for performing a stirring operation on corrosive chemicals.

2. The stirring paddle suitable for a glass kettle according to claim 1, wherein: The stirring shaft (1) includes a stainless steel cylindrical rod (11) whose surface is coated with a first polytetrafluoroethylene coating (12), and the bottom of the surface of the stainless steel cylindrical rod (11) is coated with a second polytetrafluoroethylene coating (13). The second polytetrafluoroethylene coating (13) includes a coating plane (131) and a coating groove (132). A tray (14) is fixedly connected to the bottom end of the stainless steel cylindrical rod (11).

3. The stirring paddle suitable for a glass kettle according to claim 2, wherein: The upper stirring paddle blade assembly (2) includes upper stirring blades (21) whose surface is penetrated by upper fastening nuts (22). The upper fastening nuts (22) include upper nut bodies (221), and the surface of the upper nut bodies (221) is penetrated by upper fastening screws (223). An upper raised ring (224) is provided on the inner wall of the upper fastening screws (223).

4. The stirring paddle suitable for a glass kettle according to claim 3, characterized in that: An upper connection cavity (225) is provided inside the upper nut body (221), and an upper wedge-shaped front end (222) is provided at the top of the upper fastening screw (223).

5. A stirring paddle suitable for a glass kettle according to claim 1, characterized in that: The bottom stirring paddle blade assembly (3) includes bottom stirring blades (31) whose surface is penetrated by bottom fastening nuts (32). The bottom fastening nuts (32) include bottom nut bodies (321), and the surface of the bottom nut bodies (321) is penetrated by bottom fastening screws (323). A bottom raised ring (324) is provided on the inner wall of the bottom fastening screws (323).

6. The stirring paddle suitable for a glass kettle according to claim 5, characterized in that: A bottom card slot (325) is provided at the bottom of the inner wall of the bottom nut body (321), a bottom connection cavity (326) is provided inside the bottom nut body (321), and a bottom wedge-shaped front end (322) is provided at the top of the bottom fastening screw (323).

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