CN210069194U - Sealable swivel joint - Google Patents
Sealable swivel joint Download PDFInfo
- Publication number
- CN210069194U CN210069194U CN201920784839.7U CN201920784839U CN210069194U CN 210069194 U CN210069194 U CN 210069194U CN 201920784839 U CN201920784839 U CN 201920784839U CN 210069194 U CN210069194 U CN 210069194U
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- curved
- gasket
- pipe shaft
- rotating
- shell
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Abstract
The utility model discloses a sealable rotary joint, which comprises a rotary pipe shaft for circulating sterile fluid; a housing disposed about the rotating spool, wherein a first end of the rotating spool is positioned within the housing and the first end of the rotating spool is in fluid communication with the housing; the bearing is positioned between the rotating pipe shaft and the shell, the outer side of the bearing is fixedly connected with the shell, the inner side of the bearing is fixedly connected with the rotating pipe shaft, and the rotating pipe shaft can rotate relative to the shell through the bearing; and the sealing assembly is arranged between the first end of the rotating pipe shaft and the shell and used for preventing the leakage of the sterile fluid from the shell and preventing external impurities from entering the sterile fluid, and comprises a backing ring, a gasket and a curved gasket, wherein the backing ring is arranged around the first end of the rotating pipe shaft, and both sides of the backing ring are provided with assembling pieces of the gasket and the curved gasket. The utility model discloses simple structure, simple to operate for connect the pipeline of rigid and the container of upset, in order to prevent that the fluid from revealing at the two junction.
Description
Technical Field
The utility model relates to the field of machinary, more specifically relate to a rotary joint that can seal.
Background
The filter washing dryer (commonly called three-in-one equipment) generally comprises a container cavity, a filter bottom plate and a lifting stirring device, wherein after washing materials are filtered in the container cavity and on a filter plate, the materials are stirred and heated by the stirring device, and are vacuumized and dried, and the materials are discharged from a discharge port on the side surface of the container cavity. The solid-liquid mixed material is filtered by the filter plate, the solid material is retained on the filter bottom plate, and then the material is dehydrated in a vacuum environment to obtain a dry product and then discharged.
However, in the above-mentioned filtering washing and drying machine, the cavity of the container needs to be turned over by 150 degrees, so that the fixing device connected with the container can rotate relatively, and the fluid leakage is easy to occur due to the connection relationship, which is not beneficial to industrial production.
Accordingly, there is a lack in the art of a sealable swivel joint by which to connect a stationary fluid device and an inverted container cavity to prevent fluid leakage.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a rotary joint can seal, the utility model discloses a rotary joint is used for connecting fixed aseptic fluid device and upset container, its simple structure, simple to operate to prevent that aseptic fluid from taking place to reveal in the two junction.
The utility model provides a sealable rotary joint, which is characterized in that the rotary joint comprises a rotary pipe shaft, and the rotary pipe shaft is used for circulating sterile fluid; a housing disposed around the rotating spool, wherein a first end of the rotating spool is positioned within the housing and the first end of the rotating spool is in communication with the housing; the bearing is positioned between the rotating pipe shaft and the shell, the outer side of the bearing is fixedly connected with the shell, the inner side of the bearing is fixedly connected with the rotating pipe shaft, and the rotating pipe shaft can rotate relative to the shell through the bearing; and the sealing assembly is arranged between the first end of the rotating pipe shaft and the shell and used for preventing the sterile fluid from leaking from the shell and preventing external impurities from entering the sterile fluid, and comprises a backing ring, a gasket and a curved gasket, wherein the backing ring is arranged around the first end of the rotating pipe shaft, and the two sides of the backing ring are respectively provided with a combination of the gasket and the curved gasket.
In another preferred example, the sterile fluid is a sterile liquid, a sterile gas, or a combination thereof.
In another preferred example, the curved gasket comprises a flat part and a convex part, wherein the flat part is in an annular gasket structure, the convex part extends from the inner ring of the flat part along the axial direction of the curved gasket, and the flat part and the convex part are in transition connection through a curved surface.
In another preferred example, the number of the backing rings is 1-5; preferably, 1 to 3; more preferably, 2.
In another preferred example, the curved gasket comprises a liquid sealing curved gasket and a gas sealing curved gasket, wherein the liquid sealing curved gasket is arranged on one side of the backing ring close to the first end of the rotating pipe shaft, and the convex part of the liquid sealing curved gasket extends towards the first end of the rotating pipe shaft; the air sealing curved gasket is arranged on one side of the backing ring away from the first end of the rotating pipe shaft, and the convex part of the air sealing curved gasket extends towards the direction opposite to the convex part of the liquid sealing curved gasket.
The liquid sealing curved gasket is used for preventing the sterile fluid from flowing out through a gap where the rotating pipe shaft and the shell are jointed; the air sealing curved gasket is used for preventing external impurities from entering the sterile fluid through a gap where the rotating pipe shaft and the shell are jointed.
In another preferred example, the number of the liquid sealing curved gaskets is 1-5; preferably, 1 to 4; more preferably, 2 to 3.
In another preferred example, the number of the air sealing curved gaskets is 1-5; preferably, 1 to 3; more preferably, 1 to 2.
In another preferred example, when the number of the backing rings is greater than 1, only one set of the combination of the gasket and the curved gasket is arranged between the adjacent backing rings.
In another preferred example, the number of the liquid sealing curved gaskets is greater than or equal to the number of the gas sealing curved gaskets.
In another preferred embodiment, the flat portion and the raised portion are integral or integrally formed.
In another preferred example, the convex part extends 1-5mm from the inner ring of the flat part along the axial direction of the curved washer; preferably, 1.5-4 mm; more preferably, 2-3 mm.
In another preferred embodiment, the thickness of the flat part is 0.4-2 mm; preferably, 0.5-1.5 mm; more preferably, 0.6-1 mm.
In another preferred example, the outer diameter of the curved gasket is 25-50 mm; preferably, 30-45 mm; more preferably 35-40 mm.
In another preferred example, the inner diameter of the curved gasket is 10-35 mm; preferably, 15-30 mm; more preferably, 20-25 mm.
In another preferred example, the cross section of the curved gasket is in a shape of a Chinese character 'ba'.
In another preferred example, the thickness of the flat portion is not greater than the thickness of the convex portion.
In another preferred example, the thickness of the convex portion is equal to the thickness of the flat portion.
In another preferred example, the periphery of the first end side wall of the rotating pipe shaft is plated with a ceramic coating.
In another preferred example, the outer periphery of the side wall of the first end of the rotating pipe shaft is plated with a ceramic coating at the contact part with the curved gasket.
In another preferred embodiment, the housing is fixedly connected to a fixing member through a flange, the fixing member is fixedly connected to a motor, the motor drives the fixing member to rotate, and the fixing member drives the housing to rotate.
In another preferred embodiment, the number of the bearings is two.
In another preferred embodiment, a liner ring is provided on the housing and a liner ring is provided on the housing for venting the sterile fluid in the event of failure of the seal assembly.
In another preferred example, the lining ring is located between the two bearings and used for fixing the positions of the two bearings.
In another preferred embodiment, a sealing flange is provided between the sealing assembly and the bearing, the sealing flange being disposed around the rotating pipe shaft between the housing and the rotating pipe shaft, the sealing flange being configured to provide a fixed support for the sealing assembly and the bearing.
In another preferred example, the rotary joint includes a snap ring, the snap ring is disposed around the rotary pipe shaft and is fixedly connected with the rotary pipe shaft, and the snap ring is used for fixing the bearing.
In another preferred example, one end of the bearing is connected with the sealing flange, the other end of the bearing is fixedly supported by a sealing flange cover, and the sealing flange cover is arranged around the rotating pipe shaft and is fixedly connected with the shell through a sealing bolt.
In another preferred example, the outlet end of the housing is fixedly connected with the mounting flange through a mounting bolt.
In another preferred embodiment, an O-ring is arranged on the periphery of the portion, fixedly connected with the mounting flange, of the outlet end of the housing, and the O-ring is used for preventing external impurities from entering the housing and further entering the sterile fluid.
It should be noted that the sealing assembly may be provided in plural for satisfying more severe sealing conditions or realizing multi-stage sealing when there are connection relationships between plural components.
In another preferred example, the rotation speed of the rotating pipe shaft is 0.5-2 r/min.
The utility model discloses a main advantage includes:
(a) the structure is simple, and the installation is convenient;
(b) the sealing of the joint when the shell rotates relative to the pipe shaft can be realized;
(c) the circulation of sterile fluid can be realized when the shell rotates relative to the tubular shaft;
(d) can realize cleaning and sterilization, and can be applied to aseptic environment.
It is understood that within the scope of the present invention, the above-mentioned technical features of the present invention and those specifically described below (e.g. in the examples) can be combined with each other to constitute new or preferred technical solutions. Not to be reiterated herein, but to the extent of space.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a cross-sectional view of a sealable swivel joint in one example of the present invention;
FIG. 2 is an enlarged view of section I of FIG. 1;
FIG. 3 is a cross-sectional view of a curved gasket in an example of the invention;
fig. 4 is an illustration of a sealable swivel joint according to an embodiment of the present invention connected to a mounting member by a mounting flange.
In the drawings, each symbol is as follows:
1-a shell;
201-liquid seal curved gasket;
202-air sealing curved gasket;
3-a gasket;
4-a backing ring;
5-sealing the flange;
6-a bearing;
7-a snap ring;
8-sealing the flange cover;
9-sealing bolts;
10-rotating the tubular shaft;
11-a liner ring;
12-O-ring;
13-mounting flange;
14-mounting bolts;
15-ceramic coating;
16-flat portion;
17-a boss;
18-a fixing member;
19-motor.
Detailed Description
The inventor has developed a rotary joint that can seal through extensive and intensive research, through a large amount of screenings, the utility model discloses a rotary joint can be used to the connection between a rotating member (for example, the container cavity) and a mounting, through seal assembly's sealed effect, avoids revealing at the aseptic fluid of this rotating member and mounting circulation, and this seal assembly includes backing ring, gasket and bent gasket, and wherein bent gasket includes bent gasket of liquid seal and the bent gasket of atmoseal again, has accomplished the utility model discloses on this basis.
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, the drawings are schematic and, thus, the present invention is not limited to the size or scale of the schematic.
It is to be noted that in the claims and the description of the present patent, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, same element in a process, method, article, or apparatus that comprises the element.
Examples
The sealable swivel of the present embodiment is shown in fig. 1-3.
As shown in FIG. 1, the sealable swivel of the present embodiment includes a swivel pipe shaft 10, a housing 1 disposed around the swivel pipe shaft 10, two bearings 6 disposed between the swivel pipe shaft 10 and the housing 1, and a seal assembly.
The rotating tubular shaft 10 is used for circulating a sterile fluid, which may be a sterile liquid, a sterile gas, or a sterile gas-liquid mixture thereof. The outlet end of the rotating pipe shaft 10 is located in the housing 1, and the outlet end of the rotating pipe shaft 10 is in fluid communication with the inner cavity of the housing 1.
The inlet of the rotary joint is a fixed end and is connected with a pipeline for sterile liquid or gas; the outlet is a rotating end which is connected with a sterile container into which the bacteria liquid or gas is going to enter, and the flow direction of the liquid or gas is shown in figure 3.
The outer side of the bearing 6 is fixedly connected with the housing 1, the inner side of the bearing 6 is fixedly connected with the rotating pipe shaft 10, and the rotating pipe shaft 10 can rotate relative to the housing 1 through the bearing 6. The rotary joint is provided with a clamping ring 7, and the clamping ring 7 is arranged around the rotary pipe shaft 10 and fixedly connected with the rotary pipe shaft 10 and used for fixing the bearing 6.
The sealing assembly is arranged between the outlet end of the rotating pipe shaft 10 and the shell 1 and used for preventing the sterile fluid from leaking from the shell 1 and preventing external impurities from entering the sterile fluid, the sealing assembly comprises a backing ring 4, a gasket 3 and a curved gasket, wherein the backing ring 4 is arranged around the outlet end of the rotating pipe shaft 10, both sides of the backing ring 4 are provided with assemblies of the gasket 3 and the curved gasket, and only one assembly of the gasket 3 and the curved gasket is arranged between the adjacent backing rings 4. In this embodiment, the number of the backing rings 4 is 2, the number of the liquid seal curved gaskets 201 is 2, and the number of the gas seal curved gaskets 202 is 1.
As shown in fig. 3, the cross section of the curved gasket is in a shape of a Chinese character 'ba', the curved gasket comprises a flat part 16 and a convex part 17, wherein the flat part 16 is in an annular gasket structure, the convex part 17 extends from the inner ring of the flat part 16 along the axial direction of the curved gasket, the flat part 16 and the convex part 17 are in transition connection through a curved surface, and the flat part 16 and the convex part 17 are integrated or integrally formed. In this embodiment, the convex portion 17 of the curved gasket extends 2mm from the inner ring of the flat portion 16 along the axial direction of the curved gasket, the thickness of the flat portion 16 is 0.8mm, the outer diameter of the curved gasket is 37mm, the inner diameter of the curved gasket is 22mm, and the thickness of the convex portion 17 is equal to that of the flat portion 16 and is also 0.8 mm.
As shown in fig. 2, the curved gasket includes a liquid sealing curved gasket 201 and a gas sealing curved gasket 202, the liquid sealing curved gasket 201 is used for preventing the sterile fluid from flowing out through the gap where the rotating pipe shaft 10 and the housing 1 are jointed, and the gas sealing curved gasket 202 is used for preventing foreign matters from entering the sterile fluid through the gap where the rotating pipe shaft 10 and the housing 1 are jointed. The liquid sealing curved gasket 201 is arranged on one side of the backing ring 4 close to the outlet end of the rotating pipe shaft 10, and the convex part of the liquid sealing curved gasket 201 faces the outlet end of the rotating pipe shaft 10; the gas seal curved gasket 202 is disposed on the side of the backing ring 4 away from the outlet end of the rotary pipe shaft 10, and the convex portion of the gas seal curved gasket 202 faces in the opposite direction to the convex portion of the liquid seal curved gasket 201.
Sterile liquid or gas enters the inside of the rotary joint from the inlet, and the rotating pipe shaft 10 can ensure that the sterile liquid or gas does not leak from a gap between the rotating pipe shaft 10 and the shell 1 while rotating. The pressure of the liquid or gas entering the rotary joint is normally 0.05 MPa. When the vacuum degree reaches the limit vacuum, a vacuum test is carried out, so that the vacuum degree can be ensured to be unchanged; when the rotary joint is filled with 0.3MPa positive pressure for pressure test, the pressure can be kept unchanged. The rotary joint can be sterilized by introducing pure steam, is applied to aseptic occasions, and can be used for conveying aseptic crystallization liquid.
The curved gasket and the gasket 3 are made of special Teflon materials, and can resist sterilization of high-temperature steam and play a role in sealing. The connection section of the periphery of the side wall of the outlet end of the rotating pipe shaft 10, which is connected with the sealing assembly, is plated with a ceramic coating 15, and the ceramic coating 15 is hard and plays a role of sealing after being combined with the curved gasket, as shown in fig. 2.
A sealing flange 5 is arranged between the sealing assembly and the bearing 6, the sealing flange 5 is arranged between the shell 1 and the rotating pipe shaft 10 around the rotating pipe shaft 10, and the sealing flange 5 is used for providing fixed support for the sealing assembly and the bearing 6. One end of the bearing 6 is connected with the sealing flange 5, the other end of the bearing 6 is fixedly supported by the sealing flange cover 8, and the sealing flange cover 8 is arranged around the rotating pipe shaft 10 and is fixedly connected with the shell 1 by the sealing bolt 9.
A backing ring 11 is provided on the housing 1, the backing ring 11 being located between the two bearings 6 for venting sterile fluid in the event of failure of the seal assembly and for fixing the position of the two bearings 6.
As shown in fig. 4, the outlet end of the housing 1 is fixedly connected to one side of the mounting flange 13 through the mounting bolt 14, the other side of the mounting flange 13 is fixedly connected to a fixing member 18 (e.g., a turnover container), the fixing member 18 is fixedly connected to a motor 19, the motor 19 drives the fixing member 18 to rotate, and the fixing member 18 drives the housing 1 to rotate, as shown in fig. 3. The periphery of the outlet end of the housing 1 and the part fixedly connected with the mounting flange 13 is provided with an O-shaped ring 12, and the O-shaped ring 12 is used for preventing external impurities from entering the housing 1 and further entering sterile fluid.
All documents mentioned in this application are incorporated by reference into this application as if each were individually incorporated by reference. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the above teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
Claims (10)
1. A sealable swivel joint, comprising
A rotating tubular shaft for circulating sterile fluid;
a housing disposed about the rotating spool, wherein a first end of the rotating spool is within the housing and the first end of the rotating spool is in fluid communication with the housing;
the bearing is positioned between the rotating pipe shaft and the shell, the outer side of the bearing is fixedly connected with the shell, the inner side of the bearing is fixedly connected with the rotating pipe shaft, and the rotating pipe shaft can rotate relative to the shell through the bearing; and
and the sealing assembly is arranged between the first end of the rotating pipe shaft and the shell and used for preventing the sterile fluid from leaking from the shell and preventing external impurities from entering the sterile fluid, and comprises a backing ring, a gasket and a curved gasket, wherein the backing ring is arranged around the first end of the rotating pipe shaft, and the two sides of the backing ring are respectively provided with a combination of the gasket and the curved gasket.
2. The rotary joint according to claim 1, wherein the curved shim comprises a flat portion and a raised portion, wherein the flat portion is an annular shim structure, the raised portion extends from an inner ring of the flat portion in an axial direction of the curved shim, and the flat portion and the raised portion are transitionally connected by a curved surface.
3. The swivel joint of claim 2, wherein the curved gasket comprises a liquid-tight curved gasket and a gas-tight curved gasket, wherein the liquid-tight curved gasket is disposed on a side of the backing ring proximate the first end of the swivel pipe axis, and a raised portion of the liquid-tight curved gasket extends toward the first end of the swivel pipe axis; the air sealing curved gasket is arranged on one side of the backing ring away from the first end of the rotating pipe shaft, and the convex part of the air sealing curved gasket extends towards the direction opposite to the convex part of the liquid sealing curved gasket.
4. The rotary joint of claim 3, wherein the number of backing rings is 1-5; the number of the liquid sealing curved gaskets is 1-5; the number of the air seal curved gaskets is 1-5.
5. The rotary joint according to claim 4, wherein when the number of said backing rings is greater than 1, only one set of said shim and said curved shim combination is disposed between adjacent said backing rings.
6. The rotary joint according to claim 4, wherein the number of the liquid seal curved gaskets is equal to or greater than the number of the gas seal curved gaskets.
7. The swivel joint of claim 2, wherein the flat portion and the raised portion are integral or integrally formed.
8. The rotary joint of claim 1, wherein an outer periphery of a first end sidewall of the rotary pipe shaft is plated with a ceramic coating.
9. The rotary joint as claimed in claim 1, wherein said housing is fixedly connected to a fixed member via a flange, said fixed member is fixedly connected to a motor, said motor rotates said fixed member, said fixed member rotates said housing, and said rotary pipe shaft is fixed.
10. The rotary joint as set forth in claim 1, wherein a backing ring is provided on said housing for venting said sterile fluid in the event of a failure of said seal assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920784839.7U CN210069194U (en) | 2019-05-28 | 2019-05-28 | Sealable swivel joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920784839.7U CN210069194U (en) | 2019-05-28 | 2019-05-28 | Sealable swivel joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210069194U true CN210069194U (en) | 2020-02-14 |
Family
ID=69454844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920784839.7U Active CN210069194U (en) | 2019-05-28 | 2019-05-28 | Sealable swivel joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210069194U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412347A (en) * | 2020-10-29 | 2021-02-26 | 四川宏华石油设备有限公司 | High-pressure manifold rotating nipple |
| CN112460353A (en) * | 2020-11-27 | 2021-03-09 | 山东国创精密机械有限公司 | High-pressure rotary joint |
| CN112833185A (en) * | 2021-02-05 | 2021-05-25 | 江苏徐工工程机械研究院有限公司 | Tensile revolving body |
-
2019
- 2019-05-28 CN CN201920784839.7U patent/CN210069194U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412347A (en) * | 2020-10-29 | 2021-02-26 | 四川宏华石油设备有限公司 | High-pressure manifold rotating nipple |
| CN112460353A (en) * | 2020-11-27 | 2021-03-09 | 山东国创精密机械有限公司 | High-pressure rotary joint |
| CN112833185A (en) * | 2021-02-05 | 2021-05-25 | 江苏徐工工程机械研究院有限公司 | Tensile revolving body |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211102 Address after: 201400 first floor, building 1, No. 1377, Huhang highway, Fengxian District, Shanghai Patentee after: Shanghai dongfulong pharmaceutical equipment Engineering Co.,Ltd. Address before: 201499 room 1133, building 2, No. 890, Qinggao Road, Qingcun Town, Fengxian District, Shanghai Patentee before: Farson Technology (Shanghai) Co.,Ltd. |