CN219355885U

CN219355885U - Stirring paddle structure

Info

Publication number: CN219355885U
Application number: CN202320302364.XU
Authority: CN
Inventors: 卢卫东; 邵裕峰; 蔡永建
Original assignee: Anjiyi Machinery Manufacturing Shanghai Co ltd
Current assignee: Anjiyi Machinery Manufacturing Shanghai Co ltd
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-07-18
Anticipated expiration: 2033-02-23

Abstract

The utility model discloses a stirring paddle structure, and belongs to the technical field of stirring paddles. The stirring paddle structure comprises a disc, wherein a plurality of paddles are arranged on the disc along the circumferential direction, the disc is fixedly connected to a sleeve, annular grooves are respectively formed in the upper side and the lower side of the inner wall of the sleeve, and a first sealing ring and a second sealing ring are respectively embedded in the two annular grooves; the top of sleeve has offered a plurality of open slot along circumference, and a plurality of plane groove has been offered along circumference to telescopic outer wall. The utility model has reasonable structure and low manufacturing cost, and can well increase the radial force of the sleeve fixed on the stirring shaft, thereby preventing the blade from falling off and the stirring shaft from being scratched; and the stirring paddle structure is clean and thorough, so that the possibility of material bacterial contamination is avoided, and the strict operating environment of the bioreactor is satisfied.

Description

Stirring paddle structure

Technical Field

The utility model relates to a stirring paddle structure, and belongs to the technical field of stirring paddles.

Background

Bioreactors are of a wide variety and have varied utility, and currently are stirred bioreactors. As shown in fig. 1, the structure of the stirring paddle in the conventional stirring bioreactor has the following problems:

1. the blade 5 is fixed on the disc 3, the disc 3 is fixed on the sleeve 2, and the sleeve 2 is locked on the stirring shaft 1 by using the screw 4. However, since the surface of the stirring shaft 1 is a smooth curved surface, the radial force of the screw 4 on the sleeve 2 fixed on the stirring shaft 1 is limited, so that the sleeve 2 is easy to fall off along with the disc 3 and the blade 5, and the stirring shaft 1 is also easy to scratch.

2. The stirring liquid on the screw 4 is not cleaned, and the stirring liquid at the top of the sleeve 2 is not discharged cleanly.

Thirdly,: the gap between the sleeve 2 and the stirring shaft 1 is easy to collect dirt and difficult to clean.

Disclosure of Invention

The utility model aims to provide a stirring paddle structure which is reasonable in structure and low in manufacturing cost, and can well increase the radial force of a sleeve fixed on a stirring shaft and prevent blades from falling off and the stirring shaft from being scratched.

To achieve the purpose, the utility model is realized by adopting the following technical scheme:

the utility model provides a stirring paddle structure, which comprises a disc, wherein a plurality of paddles are arranged on the disc along the circumferential direction, the disc is fixedly connected to a sleeve, annular grooves are respectively formed in the upper side and the lower side of the inner wall of the sleeve, and a first sealing ring and a second sealing ring are respectively embedded in the two annular grooves; the top of sleeve has offered a plurality of open slot along circumference, and a plurality of plane groove has been offered along circumference to telescopic outer wall.

In one embodiment of the utility model, the plane groove is provided with a through hole, and a screw penetrates through the through hole to be inserted into a stirring shaft fixing hole formed on the stirring shaft and is fastened with the stirring shaft.

In one embodiment of the utility model, the screw housing is provided with a cap which abuts against a planar groove of the sleeve.

In one embodiment of the utility model, the nut and the screw are connected through threads.

In one embodiment of the present utility model, a third sealing ring is further disposed between the nut and the planar groove.

In one embodiment of the present utility model, the first sealing ring, the second sealing ring and the third sealing ring are all O-rings.

In one embodiment of the utility model, the blades mounted on the disc are arranged vertically or obliquely.

In one embodiment of the utility model, the stirring shaft is provided with a plurality of stirring paddle structures, and the number of paddles of each stirring paddle structure is six.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the outer wall of the sleeve is provided with the plane groove, the plane groove is provided with the through hole, and the screw penetrates through the through hole and is inserted into the stirring shaft fixing hole formed in the stirring shaft and is fastened with the stirring shaft. Meanwhile, a third sealing ring is further arranged between the screw cap sleeved outside the screw and the plane groove, the screw is sealed through the third sealing ring and the screw cap, stirring liquid is prevented from penetrating into the sleeve from the position between the screw and the through hole, meanwhile, the screw is protected, and the situation that the stirring liquid on the screw is not cleaned cleanly is avoided; reasonable structure and low manufacturing cost.

2. According to the utility model, the annular grooves are respectively formed in the upper side and the lower side of the inner wall of the sleeve, and the first sealing ring and the second sealing ring are respectively embedded in the two annular grooves, so that the inner wall of the sleeve between the first sealing ring and the second sealing ring is a sealing space, a gap between the sleeve and the stirring shaft is not contacted with materials, the possibility of material contamination is avoided, and the situation that dirt is hidden in the gap between the sleeve and the stirring shaft and the cleaning is difficult to realize is avoided. Simultaneously, the friction force between the sleeve and the stirring shaft is increased by the first sealing ring and the second sealing ring, and the radial force for fixing the sleeve on the stirring shaft is further increased, so that the sleeve is prevented from falling off.

3. According to the utility model, the top of the sleeve is provided with the plurality of open grooves, and the inner space of the sleeve above the first sealing ring is communicated with the open grooves, so that stirring liquid remained above the first sealing ring and stirring liquid at the top of the sleeve are easily discharged from the open grooves, the stirring paddle structure is cleaned thoroughly, and the strict operation environment of the bioreactor is satisfied.

Drawings

Fig. 1 is a perspective view of a conventional stirring paddle structure.

Fig. 2 is a perspective view of the structure of the stirring paddle of the present utility model.

FIG. 3 is an exploded view of the structure of the stirring paddle of the present utility model.

In the figure, 1, a stirring shaft; 2. a sleeve; 3. a disc; 4. a screw; 5. a paddle; 6. a screw cap; 7. a first seal ring; 8. a second seal ring; 9. a third seal ring; 10. an open slot; 11. an annular groove; 12. a planar slot; 13. and a through hole.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Example 1

As shown in fig. 2 and 3, this embodiment provides a stirring paddle structure, which includes a disc 3, wherein a plurality of paddles are installed on the disc 3 along the circumferential direction, the disc 3 is fixedly connected to a sleeve 2, annular grooves 11 are respectively formed on the upper side and the lower side of the inner wall of the sleeve 2, and a first sealing ring 7 and a second sealing ring 8 are respectively embedded on the two annular grooves 11; the top of the sleeve 2 is provided with a plurality of open slots 10 along the circumferential direction, and the outer wall of the sleeve 2 is provided with a plurality of plane slots 12 along the circumferential direction.

Further, the plane groove 12 is provided with a through hole 13, and the screw 4 is inserted into a stirring shaft fixing hole (not shown in the figure) formed on the stirring shaft 1 through the through hole 13 and fastened with the stirring shaft 1, so that the sleeve 2 is fastened on the stirring shaft 1.

Further, the screw 4 is sleeved with a nut 6, and the nut 6 is abutted against the plane groove 12 of the sleeve 2.

Further, the nut 6 is connected with the screw 4 through threads.

Further, a third sealing ring 9 is further arranged between the nut 6 and the plane groove 12. The screw 4 is sealed through the third sealing ring 9 and the screw cap 6, so that stirring liquid is prevented from penetrating into the sleeve 2 from between the screw 4 and the through hole 13, and meanwhile, the screw 4 is protected, and the situation that the stirring liquid on the screw 4 is not cleaned is avoided.

Optionally, the first sealing ring 7, the second sealing ring 8 and the third sealing ring 9 are all O-rings.

Alternatively, the blades 5 mounted on the disc 3 are arranged vertically or obliquely.

Optionally, a plurality of stirring paddle structures are installed on the stirring shaft 1, and the number of the paddles 5 of each stirring paddle structure is six.

Compared with the prior stirring shaft with a smooth curved surface, the utility model has the advantages that the surface of the stirring shaft is provided with the smooth curved surface, the radial force of the screw on the sleeve is limited, the outer wall of the sleeve is provided with the plane groove, the plane groove is provided with the through hole, the screw is inserted into the stirring shaft fixing hole on the stirring shaft through the through hole and is fastened with the stirring shaft, the screw cap is sleeved outside the screw, the screw cap is abutted with the plane groove of the sleeve, the radial force for fixing the sleeve on the stirring shaft is increased, the sleeve can be effectively prevented from falling off along with the disc and the blade, and the stirring shaft is prevented from being scratched. Meanwhile, a third sealing ring is further arranged between the screw cap sleeved outside the screw and the plane groove, the screw is sealed through the third sealing ring and the screw cap, stirring liquid is prevented from penetrating into the sleeve from the screw to the through hole, meanwhile, the screw is protected, and the situation that the stirring liquid on the screw is not cleaned is avoided.

According to the utility model, the annular grooves are respectively formed in the upper side and the lower side of the inner wall of the sleeve, and the first sealing ring and the second sealing ring are respectively embedded in the two annular grooves, so that the inner wall of the sleeve between the first sealing ring and the second sealing ring is a sealing space, a gap between the sleeve and the stirring shaft is not contacted with materials, the possibility of material contamination is avoided, and the situation that dirt is hidden in the gap between the sleeve and the stirring shaft and the cleaning is difficult to realize is avoided. Simultaneously, the friction force between the sleeve and the stirring shaft is increased by the first sealing ring and the second sealing ring, and the radial force for fixing the sleeve on the stirring shaft is further increased, so that the sleeve is prevented from falling off.

In addition, the top of the sleeve is provided with a plurality of open grooves, and the inner space of the sleeve above the first sealing ring is communicated with the open grooves, so that stirring liquid remained above the first sealing ring and stirring liquid at the top of the sleeve are easily discharged from the open grooves, the stirring paddle structure is clean and thorough, and the strict operation environment of the bioreactor is met.

The scope of the present utility model is not limited to the above-described embodiments, but is intended to be limited to the appended claims, any modifications, equivalents, improvements and alternatives falling within the spirit and principle of the inventive concept, which can be made by those skilled in the art.

Claims

1. The stirring paddle structure is characterized by comprising a disc, wherein a plurality of paddles are arranged on the disc along the circumferential direction, the disc is fixedly connected to a sleeve, annular grooves are respectively formed in the upper side and the lower side of the inner wall of the sleeve, and a first sealing ring and a second sealing ring are respectively embedded in the two annular grooves; the top of sleeve has offered a plurality of open slot along circumference, and a plurality of plane groove has been offered along circumference to telescopic outer wall.

2. The stirring paddle structure of claim 1, wherein the planar slot is provided with a through hole, and a screw is inserted into a stirring shaft fixing hole formed in the stirring shaft through the through hole and fastened with the stirring shaft.

3. The stirring paddle structure of claim 2, wherein the screw housing is provided with a nut that abuts the planar slot of the sleeve.

4. A stirring paddle structure as claimed in claim 3, wherein the nut is threadably connected to the screw.

5. A stirring paddle structure as set forth in claim 3, wherein a third seal ring is further provided between the nut and the planar groove.

6. The stirring paddle structure of claim 5, wherein the first, second, and third seal rings are O-rings.

7. The stirring paddle structure of claim 1, wherein the paddles mounted on the disc are vertically or obliquely disposed.

8. The stirring paddle structure of claim 2, wherein a plurality of stirring paddle structures are mounted on the stirring shaft, and the number of paddles per stirring paddle structure is six.