CN221402120U - Spherical sealing rotary joint capable of swinging - Google Patents
Spherical sealing rotary joint capable of swinging Download PDFInfo
- Publication number
- CN221402120U CN221402120U CN202323332022.1U CN202323332022U CN221402120U CN 221402120 U CN221402120 U CN 221402120U CN 202323332022 U CN202323332022 U CN 202323332022U CN 221402120 U CN221402120 U CN 221402120U
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- ball head
- sealing
- spherical
- connecting pipe
- fluid channel
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- 238000007789 sealing Methods 0.000 title claims abstract description 71
- 239000012530 fluid Substances 0.000 claims abstract description 30
- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000007906 compression Methods 0.000 claims abstract description 15
- 210000004907 gland Anatomy 0.000 claims abstract description 8
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to the field of pipeline connection, and particularly discloses a spherical sealing rotary joint capable of swinging. The spherical sealing rotary joint comprises a first joint assembly, a second joint assembly and a sealing assembly, wherein the first joint assembly comprises a main body, a first connecting pipe and a gland, a connecting cavity is arranged in the main body, and a first fluid channel is arranged in the first connecting pipe; the second joint assembly comprises a first ball head, a second connecting pipe and a compression spring, and the compression spring is arranged between the first ball head and the second ball head; an outer spherical surface is arranged on the first ball head, and an inner spherical surface is arranged on the second ball head; the sealing assembly comprises an inner sealing ring and an outer sealing ring, wherein the inner sealing ring is provided with an inner sealing surface, and the outer sealing ring is provided with an outer sealing surface. The spherical sealing rotary joint can be adjusted within a certain angle range on the basis of ensuring the sealing effect, and plays a certain vibration buffering role in the axial direction.
Description
Technical Field
The utility model relates to the field of pipeline connection, in particular to a spherical sealing rotary joint capable of swinging.
Background
The pipeline system is an important device for fluid delivery and distribution, and due to factors such as installation errors, vibration of matched devices, impact load of fluid, temperature change and the like, certain compensation capacity of the pipeline system is required, but the compensation capacity is in contradiction with the sealing performance requirement of fluid delivery. In view of the above problems, a common solution is to provide a hose and a bellows with a deformation capability in the serial connection part in the piping system, but the operational reliability of the hose and the bellows is lower than that of the conventional piping, and the service life is not enough.
The compensation capability is realized by adopting a rotary joint in part of pipeline systems, for example, chinese patent application with the application publication number of CN 109282100A discloses a spherical rotary joint with adjustable clearance for a heating pipeline, which can allow the pipelines at two ends to relatively move within a certain angle range on the basis of realizing sealing, but the spherical rotary joint adopts rigid connection in the axial direction and has weaker vibration buffering capability.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a swinging spherical sealing rotary joint which can be adjusted within a certain angle range and has a certain vibration buffering effect in the axial direction on the basis of ensuring the sealing effect.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows: a swingable spherical seal rotary joint comprising at least:
The first joint assembly comprises a main body, a first connecting pipe and a gland, wherein a connecting cavity is arranged in the main body, a first fluid channel is arranged in the first connecting pipe, the first connecting pipe and the main body are integrally formed, and the first fluid channel is communicated with the connecting cavity; the gland is detachably connected with the main body;
The second joint assembly comprises a first ball head, a second connecting pipe and a compression spring, wherein the first ball head and the second connecting pipe are integrally formed, a second fluid channel is arranged in the second connecting pipe, and the second fluid channel penetrates through the first ball head; a part of the second ball head is arranged in the second fluid channel in a sliding way, a third fluid channel is arranged in the second ball head, and the third fluid channel is communicated with the second fluid channel; the compression spring is arranged between the first ball head and the second ball head; an outer spherical surface is arranged at the end part of the first ball head, which faces towards the second connecting pipe, and an inner spherical surface is arranged at the end part of the second ball head, which faces away from the second connecting pipe;
The sealing assembly comprises an inner sealing ring and an outer sealing ring, wherein an inner sealing surface matched with the inner spherical surface is arranged on the inner sealing ring, and an outer sealing surface matched with the outer spherical surface is arranged on the outer sealing ring;
In the connection state, the first ball head and the second ball head are inserted into the connection cavity, and the third fluid channel is communicated with the connection cavity; the outer sealing ring is arranged between the first ball head and the main body, the gland presses the outer sealing ring, and the outer sealing surface is tightly contacted with the outer ball surface; the inner sealing ring is positioned at the bottom of the connecting cavity, and the inner spherical surface is tightly contacted with the inner sealing surface.
The first ball head and the outer sealing ring form an outer spherical surface seal, the second ball head and the inner sealing ring form an inner spherical surface seal, the first connecting pipe and the second connecting pipe can move within a certain angle range, and the two spherical surfaces are arranged in a gradient manner, so that the sealing effect is effectively ensured. Meanwhile, a compression spring is arranged between the first ball head and the second ball head, so that the compression force can be transmitted between the first ball head and the second ball head, and meanwhile, the vibration can be well buffered.
Preferably, a first flange is integrally connected to one end of the first connecting tube away from the main body.
Preferably, the first connecting pipe is a straight pipe or a bent pipe.
Preferably, one end of the second connecting pipe far away from the first ball head is integrally connected with a second flange.
Preferably, the second connecting pipe is a straight pipe or a bent pipe.
Preferably, the compression spring is a belleville spring.
Preferably, the outer side of the outer sealing ring is in sliding sealing with the inner wall of the connecting cavity through an O-shaped ring.
Preferably, a mounting groove is formed in the central area of the bottom of the connecting cavity, and the inner sealing ring is arranged in the mounting groove; the bottom of the connecting cavity further comprises a limiting surface which is annularly arranged around the mounting groove, one end of the first ball head, deviating from the second connecting pipe, is an abutting end, and the abutting end and the limiting surface are oppositely arranged.
Preferably, the device further comprises a spacer ring, wherein the spacer ring is arranged between the abutting end and the limiting surface. By arranging the isolating rings with different thicknesses, the rotation angle range of the first connecting pipe relative to the second connecting pipe can be adjusted.
Drawings
FIG. 1 is a schematic diagram of a spherical seal rotary joint capable of swinging according to the present embodiment;
FIG. 2 is a cross-sectional view of a spherical seal rotary joint swingable in accordance with the present embodiment;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an exploded view of the swingable spherical seal rotary joint of the present embodiment;
FIG. 5 is a schematic view of a first joint component of the swingable spherical seal rotary joint according to the present embodiment;
FIG. 6 is a cross-sectional view of a first joint component of the swingable spherical seal rotary joint of the present embodiment;
Fig. 7 is a schematic structural view of another form of a swingable spherical seal rotary joint according to the present embodiment, wherein the first connecting tube is a straight tube.
Description of the embodiments
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Examples
As shown in fig. 1-7, a swingable spherical seal rotary joint includes a first joint assembly 1, a second joint assembly 2, and a seal assembly.
As shown in fig. 2-6, the first joint assembly 1 includes a main body 14, a first connecting tube 11 and a gland 13, a connecting cavity 15 is disposed in the main body 14, a first fluid channel is disposed in the first connecting tube 11, the first connecting tube 11 and the main body 14 are integrally formed, and the first fluid channel is communicated with the connecting cavity 15. Specifically, one end of the first connecting pipe 11 far away from the main body 14 is integrally connected with a first flange 12, and the first connecting pipe 11 is a straight pipe or a bent pipe.
As shown in fig. 2-6, the second joint assembly 2 includes a first ball head 24, a second ball head 22, a second connecting tube 21 and a compression spring 23, the first ball head 24 and the second connecting tube 21 are integrally formed, a second fluid channel is arranged in the second connecting tube 21, and the second fluid channel penetrates through the first ball head 24. Specifically, a second flange is integrally connected to one end of the second connecting tube 21 away from the first ball head 24, and the second connecting tube 21 is a straight tube or a bent tube.
As shown in fig. 3, a portion of the second ball 22 is slidably disposed in the second fluid channel, and a third fluid channel is disposed in the second ball 22 and is in communication with the second fluid channel. The end of the first ball head 24 facing the second connecting pipe 21 is provided with an outer spherical surface, and the end of the second ball head 22 facing away from the second connecting pipe 21 is provided with an inner spherical surface.
As shown in fig. 3, the compression spring 23 is disposed between the first ball head 24 and the second ball head 22, and specifically, the compression spring 23 is a belleville spring.
As shown in fig. 2 and 3, the seal assembly includes an inner seal ring 32 and an outer seal ring 31, the inner seal ring 32 is provided with an inner seal surface matching with the inner spherical surface, and the outer seal ring 31 is provided with an outer seal surface matching with the outer spherical surface.
In the connected state, the first ball 24 and the second ball 22 are inserted into the connecting cavity 15, and the third fluid passage communicates with the connecting cavity 15. The outer sealing ring 31 is arranged between the first ball head 24 and the main body 14, the pressing cover 13 is detachably connected with the main body 14, and compresses the outer sealing ring 31, specifically, the outer side of the outer sealing ring 31 is in sliding sealing with the inner wall of the connecting cavity 15 through an O-shaped ring. The outer sealing surface is in close contact with the outer spherical surface. The inner sealing ring 32 is positioned at the bottom of the connecting cavity 15, and the inner spherical surface is tightly contacted with the inner sealing surface.
As shown in fig. 3 and 6, specifically, a mounting groove 151 is provided in a central area of the bottom of the connection cavity 15, and the inner seal ring 32 is disposed in the mounting groove 151. The bottom of the connecting cavity 15 further includes a limiting surface 152 disposed around the mounting groove 151 in a ring shape, and one end of the first ball head 24 facing away from the second connecting tube 21 is an abutting end, where the abutting end is disposed opposite to the limiting surface 152.
The outer spherical surface seal is formed between the first ball head 24 and the outer sealing ring 31, the inner spherical surface seal is formed between the second ball head 22 and the inner sealing ring 32, the first connecting pipe 11 and the second connecting pipe 21 can move within a certain angle range, and the sealing effect is effectively ensured due to the gradient arrangement between the two spherical surface seals. Meanwhile, a compression spring 23 is arranged between the first ball head 24 and the second ball head 22, so that the compression force can be transmitted between the first ball head 24 and the second ball head 22, and meanwhile, the vibration can be well buffered.
As shown in fig. 3 and 6, further, the spacer ring 4 is further included, and the spacer ring 4 is disposed between the abutting end and the limiting surface 152. By providing spacer rings 4 of different thickness, the range of rotation angle of the first adapter 11 relative to the second adapter 21 can be adjusted.
In summary, the foregoing description is only of the preferred embodiments of the utility model, and is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (9)
1. A swingable spherical sealing swivel comprising at least:
The first joint assembly comprises a main body, a first connecting pipe and a gland, wherein a connecting cavity is arranged in the main body, a first fluid channel is arranged in the first connecting pipe, the first connecting pipe and the main body are integrally formed, and the first fluid channel is communicated with the connecting cavity; the gland is detachably connected with the main body;
The second joint assembly comprises a first ball head, a second connecting pipe and a compression spring, wherein the first ball head and the second connecting pipe are integrally formed, a second fluid channel is arranged in the second connecting pipe, and the second fluid channel penetrates through the first ball head; a part of the second ball head is arranged in the second fluid channel in a sliding way and is connected with the first ball head in a sliding way, a third fluid channel is arranged in the second ball head, and the third fluid channel is communicated with the second fluid channel; the compression spring is arranged between the first ball head and the second ball head; an outer spherical surface is arranged at the end part of the first ball head, which faces towards the second connecting pipe, and an inner spherical surface is arranged at the end part of the second ball head, which faces away from the second connecting pipe;
The sealing assembly comprises an inner sealing ring and an outer sealing ring, wherein an inner sealing surface matched with the inner spherical surface is arranged on the inner sealing ring, and an outer sealing surface matched with the outer spherical surface is arranged on the outer sealing ring;
In the connection state, the first ball head and the second ball head are inserted into the connection cavity, and the third fluid channel is communicated with the connection cavity; the outer sealing ring is arranged between the first ball head and the main body, the gland presses the outer sealing ring, and the outer sealing surface is tightly contacted with the outer ball surface; the inner sealing ring is positioned at the bottom of the connecting cavity, and the inner spherical surface is tightly contacted with the inner sealing surface.
2. The spherical sealing swivel according to claim 1, wherein: one end of the first connecting pipe far away from the main body is integrally connected with a first flange.
3. The spherical sealing swivel according to claim 1, wherein: the first connecting pipe is a straight pipe or a bent pipe.
4. The spherical sealing swivel according to claim 1, wherein: one end of the second connecting pipe, which is far away from the first ball head, is integrally connected with a second flange.
5. The spherical sealing swivel according to claim 1, wherein: the second connecting pipe is a straight pipe or a bent pipe.
6. The spherical sealing swivel according to claim 1, wherein: the compression spring is a belleville spring.
7. The spherical sealing swivel according to claim 1, wherein: the outer side of the outer sealing ring is in sliding sealing with the inner wall of the connecting cavity through an O-shaped ring.
8. A spherical sealing swivel according to any of claims 1-7, wherein: the central area of the bottom of the connecting cavity is provided with a mounting groove, and the inner sealing ring is arranged in the mounting groove;
The bottom of the connecting cavity further comprises a limiting surface which is annularly arranged around the mounting groove, one end of the first ball head, deviating from the second connecting pipe, is an abutting end, and the abutting end and the limiting surface are oppositely arranged.
9. The spherical sealing swivel according to claim 8, wherein: the device also comprises a spacer ring, wherein the spacer ring is arranged between the abutting end and the limiting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323332022.1U CN221402120U (en) | 2023-12-07 | 2023-12-07 | Spherical sealing rotary joint capable of swinging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323332022.1U CN221402120U (en) | 2023-12-07 | 2023-12-07 | Spherical sealing rotary joint capable of swinging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221402120U true CN221402120U (en) | 2024-07-23 |
Family
ID=91915317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323332022.1U Active CN221402120U (en) | 2023-12-07 | 2023-12-07 | Spherical sealing rotary joint capable of swinging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221402120U (en) |
-
2023
- 2023-12-07 CN CN202323332022.1U patent/CN221402120U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |