Liftable stirring paddle
By designing a liftable agitator, utilizing lifting components and multi-stage sealing technology, the problem of traditional agitators being unable to adapt to changes in liquid level has been solved, achieving efficient mixing and sealing, and improving product quality and production efficiency.
Patent Information
- Application Number
- CN202520453961.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Traditional non-elevating agitators cannot adjust to changes in liquid level, resulting in unsatisfactory mixing effects, affecting product quality and increasing production costs.
Design a liftable stirring paddle that drives the rotating shaft and blades to move axially up and down inside the container via a lifting assembly, and achieves multi-stage sealing through a mechanical seal assembly and a protective sleeve to ensure the airtightness of the container inside and out.
It enables the adjustment of the blade position according to the liquid level, making it suitable for stirring different liquid depths, while maintaining the container's airtightness from the outside world to prevent gas leakage and ensure product mixing quality.
Smart Images
Figure CN223945431U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to stirring technical field, especially a liftable stirring paddle. BACKGROUND
[0002] In the industrial production process, stirring equipment is a common process equipment for realizing uniform mixing of materials. In the traditional stirring paddle design, non-liftable stirring paddle is widely used due to its simple structure and low cost. However, this kind of stirring paddle has obvious limitations, especially in adapting to different liquid level changes.
[0003] The height of non-liftable stirring paddle is fixed and cannot be adjusted according to the change of liquid level. When dealing with different volumes of materials, this feature will lead to unsatisfactory stirring effect. For example, when the liquid level is low, the stirring paddle may not be able to contact all the materials, resulting in uneven mixing. This situation not only affects the quality of the product, but also may increase the production cost, because additional steps are needed to ensure the uniformity of the materials. SUMMARY
[0004] Therefore, the purpose of the utility model is to provide a liftable stirring paddle to solve the problems in the background technology.
[0005] A liftable stirring paddle, comprising: a lifting assembly, a rotating assembly mounted on the lifting assembly, a paddle blade connected to the rotating assembly through a rotating shaft, and a mechanical seal assembly and a protective sleeve provided on the rotating shaft;
[0006] The mechanical seal assembly is installed on the container storing the liquid to be stirred, for realizing two-stage sealing between the container and the outside world;
[0007] One end of the protective sleeve is fixed to the mechanical seal assembly through a first fixing member, and the other end of the protective sleeve is fixed to the end of the rotating shaft adjacent to the paddle blade through a second fixing member;
[0008] The lifting assembly is configured to drive the rotating shaft and the paddle blade to ascend and descend along the axial direction in the container, and the protective sleeve is of an extensible structure, which synchronously extends and contracts with the ascending and descending movement of the rotating shaft, so as to maintain one-stage sealing between the container and the outside world at any ascending and descending position.
[0009] Compared with the prior art, the beneficial effects of the present application are as follows: first, the rotating assembly is driven to rotate the rotating shaft, and then the paddle is rotated. According to the position of the liquid in the container, the rotating shaft is driven to ascend and descend in the container along the axial direction by driving the lifting assembly, so as to adjust the paddle to a suitable position of the liquid. At the same time, the protective sleeve synchronously expands and contracts with the ascending and descending movement of the rotating shaft, maintains the primary sealing between the container and the outside world at any ascending and descending position, prevents the gas inside and outside the bag body (container) from leaking, and maintains the sealing property of the bag body. During the operation of the paddle, the mechanical sealing assembly realizes the secondary sealing between the container and the outside world, ensures that the gas inside and outside the bag body does not leak during the expansion and contraction process, and maintains the sealing property of the bag body. Therefore, with the help of the lifting assembly and the two times of sealing, the paddle can be adjusted according to the liquid level of the liquid, is suitable for different liquids, and can also ensure the sealing property of the container and the outside world, so as to not affect the quality of product mixing.
[0010] Further, the mechanical sealing assembly comprises a shell, a static pressure ring, a dynamic pressure ring, a bearing and a spring arranged in the shell.
[0011] The shell is fixed at the sealing interface of the container, the bearing is used to support the dynamic pressure ring and form a rolling friction interface with the shell, and the spring applies an axial pressure to the dynamic pressure ring to form a sealing surface between the dynamic pressure ring and the static pressure ring.
[0012] Further, the mechanical sealing assembly is connected with a bell joint through a latch structure, and the bell joint is used to fix the end of the protective sleeve.
[0013] Further, the mechanical sealing assembly further comprises at least one sealing ring arranged between the dynamic pressure ring and the rotating shaft, or between the static pressure ring and the inner wall of the shell.
[0014] Further, the shell comprises a shell body and a welding seat arranged at the top of the shell body, the size of the welding seat is larger than that of the shell body, and the welding seat is welded and connected with the sealing interface of the container.
[0015] Further, the first fixing member and the second fixing member are flanges, clamps or straps.
[0016] Further, the lifting assembly comprises an electric push rod or a hydraulic cylinder, and the output end of the electric push rod is connected with the rotating assembly to drive the rotating shaft to ascend and descend.
[0017] Further, the protective sleeve is a telescopic silica gel pipe, and the telescopic direction of the telescopic silica gel pipe is coaxial with the ascending and descending direction of the rotating shaft. BRIEF DESCRIPTION OF DRAWINGS
[0018] Fig. 1 is a structure schematic view of the liftable stirring paddle of the utility model;
[0019] Fig. 2 is a structure schematic view of the rotating assembly of the utility model;
[0020] Fig. 3 is a structure schematic view of the rotating assembly of the liftable stirring paddle of the utility model;
[0021] Fig. 4 is a state schematic view of the liftable stirring paddle stirring the first liquid level of the utility model;
[0022] Fig. 5 is a state schematic view of the liftable stirring paddle stirring the second liquid level of the utility model;
[0023] Fig. 6 is a state schematic view of the liftable stirring paddle stirring the third liquid level of the utility model.
[0024] Main component symbol explanation: 10, lifting assembly; 11, rotating assembly; 12, paddle; 13, rotating shaft; 20, mechanical seal assembly; 21, shell; 211, shell body; 212, welding seat; 22, static pressure ring; 23, dynamic pressure ring; 24, bearing; 25, spring; 26, bolt structure; 27, cone joint; 281, first sealing ring; 282, second sealing ring; 283, third sealing ring; 30, protective sleeve; 31, first fixing piece; 40, container. DETAILED DESCRIPTION
[0025] In order to facilitate understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. The drawings show several embodiments of the utility model. However, the utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.
[0026] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or a middle element can exist at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0028] Please see Figs. 1 to 3 The image shows a liftable stirring paddle in an embodiment of the present invention, comprising: a lifting assembly 10, a rotating assembly 11 mounted on the lifting assembly 10, a blade 12 connected to the rotating assembly 11 via a rotating shaft 13, and a mechanical seal assembly 20 and a protective sleeve 30 disposed on the rotating shaft 13.
[0029] The mechanical seal assembly 20 is installed on the container 40 where the liquid to be stirred is stored, and is used to achieve a secondary seal between the inside of the container 40 and the outside.
[0030] One end of the protective sleeve 30 is fixed to the mechanical seal assembly 20 by the first fixing member 31, and the other end of the protective sleeve 30 is fixed to the end of the rotating shaft 13 adjacent to the blade 12 by the second fixing member;
[0031] The lifting assembly 10 is configured to drive the rotating shaft 13 and the blade 12 to move axially up and down within the container 40. The protective sleeve 30 is a telescopic structure that extends and retracts synchronously with the lifting movement of the rotating shaft 13, so as to maintain a primary seal between the container 40 and the outside world at any lifting position.
[0032] Please see Figs. 4 to 6 It is worth noting that, firstly, the drive rotating assembly 11 drives the rotating shaft 13 to rotate, which in turn causes the blade 12 to rotate. Based on the liquid level inside the container 40, the drive lifting assembly 10 drives the rotating shaft 13 to move axially up and down within the container 40, thereby adjusting the blade 12 to the appropriate liquid position. Simultaneously, the protective sleeve 30 extends and retracts synchronously with the lifting and retraction of the rotating shaft 13, maintaining a primary seal between the container 40 and the outside at any lifting or retraction position, preventing gas leakage from the inside and outside of the bag (container 40) and maintaining the bag's airtightness. During the operation of the blade 12, the mechanical seal assembly 20 achieves a secondary seal between the container 40 and the outside, ensuring that gas does not leak from the inside and outside of the bag during extension and retraction, maintaining the bag's airtightness. Therefore, by using the lifting assembly 10 and the two seals, the blade 12 can be adjusted according to the liquid level, making it suitable for different liquids, while ensuring the airtightness of the container 40 and the outside, thus not affecting the quality of product mixing.
[0033] Specifically, the mechanical seal assembly 20 comprises a shell 21, a static pressure ring 22, a dynamic pressure ring 23, a bearing 24 and a spring 25 arranged in the shell 21.
[0034] The shell 21 is fixed at a sealing interface of the container 40, the bearing 24 is used for supporting the dynamic pressure ring 23 and forming a rolling friction interface with the shell 21, and the spring 25 applies axial pressure to the dynamic pressure ring 23, so that the dynamic pressure ring 23 and the static pressure ring 22 form a sealing surface.
[0035] More specifically, the mechanical seal assembly 20 is connected with a bell joint 27 through a latch structure 26, and the bell joint 27 is used for fixing an end of the protective sleeve 30.
[0036] More specifically, the mechanical seal assembly 20 further comprises a first sealing ring 281, a second sealing ring 282 and a third sealing ring 283, the first sealing ring 281 is arranged in the dynamic pressure ring 23, the second sealing ring 282 is arranged between the bell joint 27 and the rotating shaft 13, and the third sealing ring 283 is arranged between the static pressure ring 22 and the inner wall of the shell 21.
[0037] Further, the welding stability is improved, the shell 21 comprises a shell body 211 and a welding seat 212 arranged at the top of the shell body 211, the size of the welding seat 212 is greater than that of the shell body 211, and the welding seat 212 is welded and connected with the sealing interface of the container 40.
[0038] Optionally, the first fixing member 31 and the second fixing member are flanges, clamps or straps. In the embodiment, the first fixing member 31 and the second fixing member are straps. In the embodiment, the rotating assembly 11 comprises a motor.
[0039] In the embodiment, the lifting assembly 10 comprises an electric push rod or a hydraulic cylinder, and the output end of the electric push rod is connected with the rotating assembly 11, so as to drive the rotating shaft 13 to lift.
[0040] In the embodiment, the protective sleeve 30 is a telescopic silica gel pipe, and the telescopic direction of the telescopic silica gel pipe is coaxial with the lifting direction of the rotating shaft 13.
[0041] In summary, the liftable stirring paddle in the above-mentioned embodiments of the utility model has the following beneficial effects:
[0042] First, the driving rotating assembly 11 is driven to rotate the rotating shaft 13, and then the paddle 12 is rotated. According to the position of the liquid in the container 40, the rotating shaft 13 is driven to ascend and descend in the container 40 by driving the lifting assembly 10, so as to adjust the paddle 12 to the appropriate position of the liquid. At the same time, the protective sleeve 30 is synchronously extended and retracted with the ascending and descending movement of the rotating shaft 13, and maintains the primary sealing between the container 40 and the outside at any ascending and descending position, so as to prevent the gas inside and outside the bag body (container 40) from leaking, and maintain the sealing of the bag body. During the operation of the paddle 12, the mechanical sealing assembly 20 realizes the secondary sealing between the container 40 and the outside, so as to ensure that the gas inside and outside the bag body does not leak during the extension and retraction, and maintain the sealing of the bag body. Therefore, by means of the lifting assembly 10 and the two sealings, the paddle 12 can be adjusted according to the liquid level of the liquid, which is suitable for different liquids, and can also ensure the sealing of the container 40 and the outside, so as to not affect the quality of product mixing.
[0043] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0044] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.
Claims
1. A liftable impeller, characterized in that, The application relates to a lifting and rotating assembly for a stirring device. The lifting and rotating assembly comprises a lifting assembly, a rotating assembly mounted on the lifting assembly, a paddle connected to the rotating assembly through a rotating shaft, a mechanical seal assembly and a protective sleeve arranged on the rotating shaft. The mechanical seal assembly is mounted on a container for storing liquid to be stirred, and is used for realizing two-stage sealing between the container and the outside. One end of the protective sleeve is fixed to the mechanical seal assembly through a first fixing member, and the other end of the protective sleeve is fixed to the end of the rotating shaft adjacent to the paddle through a second fixing member. The lifting assembly is configured to drive the rotating shaft and the paddle to ascend and descend along the axial direction in the container.
2. The liftable paddle of claim 1, wherein, The mechanical seal assembly comprises a shell, a static pressure ring, a dynamic pressure ring, a bearing and a spring arranged in the shell. The shell is fixed to a sealing interface of the container, the bearing is used for supporting the dynamic pressure ring and forming a rolling friction interface with the shell, and the spring applies axial pressure to the dynamic pressure ring, so that a contact surface of the dynamic pressure ring and the static pressure ring is sealed.
3. The liftable paddle of claim 2, wherein, The mechanical seal assembly is connected with a bell joint through a latch structure, and the bell joint is used for fixing the end of the protective sleeve.
4. The liftable paddle of claim 3, wherein, The mechanical seal assembly further comprises at least one sealing ring arranged between the dynamic pressure ring and the rotating shaft or between the static pressure ring and the inner wall of the shell.
5. The liftable paddle of claim 2, wherein, The shell comprises a shell body and a welding seat arranged on the top of the shell body, the welding seat is larger than the shell body in size, and the welding seat is welded to the sealing interface of the container.
6. The liftable paddle of claim 1, wherein, The first fixing member and the second fixing member are flanges, clamps or straps.
7. The liftable paddle of claim 1, wherein, The lifting assembly comprises an electric push rod or a hydraulic cylinder, and the output end of the electric push rod is connected to the rotating assembly to drive the rotating shaft to ascend and descend.
8. The liftable paddle of claim 1, wherein, The protective sleeve is a telescopic silica gel pipe, and the telescopic direction of the telescopic silica gel pipe is coaxial with the ascending and descending direction of the rotating shaft.