CN214743992U - Spherical swivel joint - Google Patents
Spherical swivel joint Download PDFInfo
- Publication number
- CN214743992U CN214743992U CN202120932860.4U CN202120932860U CN214743992U CN 214743992 U CN214743992 U CN 214743992U CN 202120932860 U CN202120932860 U CN 202120932860U CN 214743992 U CN214743992 U CN 214743992U
- Authority
- CN
- China
- Prior art keywords
- joint body
- joint
- ball
- ball head
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Pivots And Pivotal Connections (AREA)
Abstract
A spherical swivel joint comprises a joint body and a ball head shaft, wherein a flow inlet and a bell mouth are formed in the joint body, and a through hole communicated with the flow inlet is formed in the ball head shaft; the ball head shaft comprises a shaft part and a ball head part arranged in the joint body, the shaft part penetrates through the bell mouth, and a steel ball is arranged between the ball head part and the joint body. The utility model discloses have following advantage: the high-pressure fluid pump not only can realize rotation or/and swing under a small force, but also has the advantages of high reliability and suitability for high-pressure fluid environments.
Description
Technical Field
The utility model relates to a connect the field, concretely relates to spherical swivel joint.
Background
The connection between the pipe and the pipe/device can be divided into a rigid connection and a flexible connection, and the flexible connection between the pipe and the pipe/device is realized by a flexible connecting device.
Regarding flexible connecting device, the utility model discloses a name is a can multi-angle pivoted universal movable joint structure in CN207005526U, including the movable joint body, the movable joint body is equipped with the first joint and the second joint of intercommunication each other, the inside of movable joint body is equipped with the steel ball, the steel ball is equipped with the through-hole, install the spring on the second joint.
Although the above universal joint structure capable of rotating at multiple angles can realize flexible connection between the pipeline and the pipeline/device, it has the following disadvantages:
1. the reliability is poor, and the device is only suitable for a low-pressure fluid environment; because the steel ball (equivalent to the ball head part in the utility model) is directly placed in the movable joint body, when high-pressure fluid (such as glue, high-pressure paint, putty for decorating sprayed wall surfaces, PVC glue for vehicle bodies, stone-impact-proof paint and the like) entering from the first joint needs very high pressure to be extruded or sprayed, the lower part of the steel ball can be directly locked with the movable joint body by the high pressure generated by the fluid, so that the steel ball and the second joint can not rotate or swing, and the flexible connection function is lost; therefore, the universal movable joint capable of rotating at multiple angles has poor structural reliability, is only suitable for low-pressure fluid environments, such as low-pressure water pipe joints with the fluid pressure less than 0.3MPa and barrel joints of filling guns in gas stations, and cannot be suitable for high-pressure fluid environments, such as pipeline joints, glue gun joints and the like which can extrude or spray fluid only by high pressure (such as 40 MPa).
2. The steel ball and the second joint need larger force when rotating or swinging; the steel ball is directly placed in the movable joint body, and when the steel ball and the second joint rotate or swing, the steel ball is in direct contact with the inside of the movable joint body, so that the friction force between the steel ball and the movable joint body is large, the steel ball and the movable joint body are easy to wear, and the force required by the rotation or swing of the steel ball and the second joint is large, so that the operation is laborious.
3. The sealing effect is poor, and the service life is short; the sealing ring arranged between the steel ball and the inner wall of the movable joint body is a conventional rubber sealing ring, the sealing ring cannot perform sealing compensation according to the pressure of fluid, and is easy to leak and wear, so that the universal movable joint structure capable of rotating at multiple angles has poor sealing effect and short service life.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a spherical swivel joint, it can not only realize rotating or/and swing under less power, still has the reliability high, is applicable to the advantage of high-pressure fluid environment.
The utility model aims at realizing the spherical swivel joint, which comprises a joint body and a ball head shaft, wherein the joint body is provided with a flow inlet and a bell mouth, and the ball head shaft is internally provided with a through hole communicated with the flow inlet; the ball head shaft comprises a shaft part and a ball head part arranged in the joint body, the shaft part penetrates through the bell mouth, and a steel ball is arranged between the ball head part and the joint body.
The utility model discloses in, the theory of operation lies in: the fluid enters from the inlet and then flows out from the through hole in the ball head shaft; the ball head shaft can rotate in the joint body by taking the through hole as an axis and can swing in a horn mouth structure to a certain extent; in addition, because the steel ball is arranged between the ball head part and the joint body, the friction force between the ball head part and the joint body is small, the loss between the ball head part and the joint body is small, the service life is long, and the condition that the ball head part and the joint body are directly locked by high-pressure fluid can be avoided by the steel ball; therefore, the spherical rotary joint not only can realize rotation or/and swing under a small force, but also has the advantages of high reliability and suitability for high-pressure fluid environment.
Owing to adopted above-mentioned scheme, consequently the utility model has the following advantage: the high-pressure fluid pump not only can realize rotation or/and swing under a small force, but also has the advantages of high reliability and suitability for high-pressure fluid environments.
Drawings
The drawings of the utility model are as follows:
fig. 1 is a schematic view of a spherical swivel joint according to the present invention.
Fig. 2 is a schematic cross-sectional view at a-a in fig. 1.
Fig. 3 is a schematic cross-sectional view of the spherical swivel joint during the rotational swing of the present invention.
In the figure: 1. a connector body; 2. a ball end shaft; 3. a flow inlet; 4. a bell mouth; 5. a through hole; 6. a shaft portion; 7. a ball head portion; 8. steel balls; 9. a fitting body; 10. a compression nut; 11. a ball socket cushion I; 12. a ball socket cushion II; 13. an annular groove; 14. flooding and plugging; 15. a seal ring; 16. a dust-proof sleeve; 17. a ring groove I; 18. and a ring groove II.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
as shown in fig. 1 to 3, a spherical swivel joint includes a joint body 1 and a ball head shaft 2, wherein the joint body 1 is provided with a flow inlet 3 and a bell mouth 4, and the ball head shaft 2 is provided with a through hole 5 communicated with the flow inlet 3; the ball head shaft 2 comprises a shaft part 6 and a ball head part 7 arranged in the joint body 1, the shaft part 6 penetrates through the bell mouth 4, and a steel ball 8 is arranged between the ball head part 7 and the joint body 1.
The utility model discloses in, the theory of operation lies in: the fluid enters from the inlet 3 and then flows out from the through hole 5 in the ball head shaft 2; the ball head shaft 2 can rotate in the joint body 1 by taking the through hole 5 as an axis and can swing in a structure of the bell mouth 4 with a certain amplitude; in addition, because the steel ball 8 is arranged between the ball head part 7 (which is equal to the steel ball cited in the background technology) and the joint body 1, the friction force between the ball head part 7 and the joint body 1 is small, the loss between the ball head part 7 and the joint body 1 is small, the service life is long, and the steel ball 5 can also avoid the situation that high-pressure fluid directly locks the ball head part 7 and the joint body 1; therefore, the spherical rotary joint not only can realize rotation or/and swing under a small force, but also has the advantages of high reliability and suitability for high-pressure fluid environment.
The utility model discloses in, bulb portion 7 and 6 accessible of axial region set up, welded fastening or cohere modes such as fixed and form bulb axle 2.
In the present embodiment, the ball head portion 7 is provided in the joint body 1, and in order to prevent the ball head portion 7 from coming out of the joint body 1, the diameter of the contact position of the bell mouth 4 and the ball head portion 7 is smaller than the diameter of the ball head portion 7.
Further, in the present embodiment, the joint body 1 includes a joint body 9, a compression nut 10, and a ball pad disposed between the joint body 9 and the ball head portion 7, the inlet 3 is opened on the joint body 9, the bell mouth 4 is opened on the compression nut 10, and the joint body 9 and the compression nut 10 are connected by a screw; an annular groove 13 is formed in the inner side of the ball socket pad, and the steel balls 8 are arranged in the annular groove 13. The joint body 1 comprises the joint body 9, the compression nut 10 and the ball socket pad, so that the ball socket shaft 2 is convenient to mount and dismount in the joint body 1 under the conditions of reducing processing cost and ensuring structural strength and compactness.
Further, in order to further facilitate the installation and disassembly of the ball shaft 2 in the joint body 1, in this embodiment, the ball pad includes a ball pad i 11 and a ball pad ii 12, an annular groove 13 is provided on each of the ball pad i 11 and the ball pad ii 12, and a steel ball 8 is provided in the annular groove 13. The steel ball 8 in each annular groove 13 can be one, two or more than three.
Further, a flood seal 14 is provided between the ball pad and the ball stud shaft 2. Compare in setting up conventional sealing washer 15 between ball bearing pad and ball head axle 2, it is higher to set up general reliability and the durability that seals stopper 14 between ball bearing pad and ball head axle 2, even the effect that is provided with general stopper 14 between ball bearing pad and ball head axle 2 is that general stopper 14 produces wearing and tearing, fluidic pressure also can make general stopper 14 wearing and tearing department strut, make wearing and tearing department obtain certain compensation, guarantee the leakproofness between ball bearing pad and the ball head axle 2, thereby prolong general stopper 14's life, and then prolong spherical rotary joint's life. In the present exemplary embodiment, the flood seal 14 is arranged between the ball cushion i 11 and the ball stud shaft 2.
Further, a sealing ring 15 is arranged between the ball pad and the joint body 9. The function of the sealing ring 15 is to seal between the ball pad and the body 9.
Furthermore, the joint also comprises a dustproof sleeve 16, wherein a joint body 1 is provided with a ring groove I17, and a shaft part 6 is provided with a ring groove II 18; one end of the dustproof sleeve 16 is arranged in the ring groove I17, and the other end of the dustproof sleeve is arranged in the ring groove II 18. The effect of dirt proof boot 16 is to preventing dust spherical swivel joint is inside, avoids external environment to the inside interference that produces of spherical swivel joint, prolongs spherical swivel joint's life. In the present embodiment, the ring groove i 17 is opened on the compression nut 10; in another embodiment, the ring groove i 17 may also be opened in the coupling body 9.
Claims (9)
1. The utility model provides a spherical swivel joint which characterized in that: the joint comprises a joint body (1) and a ball head shaft (2), wherein a flow inlet (3) and a bell mouth (4) are formed in the joint body (1), and a through hole (5) communicated with the flow inlet (3) is formed in the ball head shaft (2); the ball head shaft (2) comprises a shaft part (6) and a ball head part (7) arranged in the joint body (1), the shaft part (6) penetrates through the bell mouth (4), and a steel ball (8) is arranged between the ball head part (7) and the joint body (1).
2. The spherical swivel joint of claim 1, wherein: the joint body (1) comprises a joint body (9), a compression nut (10) and a ball socket pad arranged between the joint body (9) and a ball head part (7), a flow inlet (3) is formed in the joint body (9), a bell mouth (4) is formed in the compression nut (10), and the joint body (9) is connected with the compression nut (10) through threads; an annular groove (13) is formed in the inner side of the ball socket pad, and the steel balls (8) are arranged in the annular groove (13).
3. The spherical swivel joint of claim 2, wherein: the ball socket pad comprises a ball socket pad I (11) and a ball socket pad II (12), wherein annular grooves (13) are formed in the ball socket pad I (11) and the ball socket pad II (12), and steel balls (8) are arranged in the annular grooves (13).
4. A spherical swivel joint according to claim 2 or 3, wherein: a flood seal plug (14) is arranged between the ball socket pad and the ball head shaft (2).
5. A spherical swivel joint according to claim 2 or 3, wherein: a sealing ring (15) is arranged between the ball socket pad and the joint body (9).
6. The spherical swivel joint of claim 4, wherein: a sealing ring (15) is arranged between the ball socket pad and the joint body (9).
7. A spherical swivel joint according to claim 1, 2, 3 or 6, wherein: the joint comprises a joint body (1) and a shaft part (6), and is characterized by also comprising a dustproof sleeve (16), wherein the joint body (1) is provided with a ring groove I (17), and the shaft part (6) is provided with a ring groove II (18); one end of the dustproof sleeve (16) is arranged in the annular groove I (17), and the other end of the dustproof sleeve is arranged in the annular groove II (18).
8. The spherical swivel joint of claim 4, wherein: the joint comprises a joint body (1) and a shaft part (6), and is characterized by also comprising a dustproof sleeve (16), wherein the joint body (1) is provided with a ring groove I (17), and the shaft part (6) is provided with a ring groove II (18); one end of the dustproof sleeve (16) is arranged in the annular groove I (17), and the other end of the dustproof sleeve is arranged in the annular groove II (18).
9. The spherical swivel joint of claim 5, wherein: the joint comprises a joint body (1) and a shaft part (6), and is characterized by also comprising a dustproof sleeve (16), wherein the joint body (1) is provided with a ring groove I (17), and the shaft part (6) is provided with a ring groove II (18); one end of the dustproof sleeve (16) is arranged in the annular groove I (17), and the other end of the dustproof sleeve is arranged in the annular groove II (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120932860.4U CN214743992U (en) | 2021-04-30 | 2021-04-30 | Spherical swivel joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120932860.4U CN214743992U (en) | 2021-04-30 | 2021-04-30 | Spherical swivel joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214743992U true CN214743992U (en) | 2021-11-16 |
Family
ID=78616062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120932860.4U Active CN214743992U (en) | 2021-04-30 | 2021-04-30 | Spherical swivel joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214743992U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294495A (en) * | 2021-12-30 | 2022-04-08 | 扬州市银焰机械有限公司 | Pulverized coal conveying telescopic pipe for burner |
-
2021
- 2021-04-30 CN CN202120932860.4U patent/CN214743992U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294495A (en) * | 2021-12-30 | 2022-04-08 | 扬州市银焰机械有限公司 | Pulverized coal conveying telescopic pipe for burner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203463833U (en) | Sealing assembly for butt-joint of high-temperature high-pressure gas pipelines | |
| CN208397495U (en) | A kind of Universal rotary connector | |
| CN214743992U (en) | Spherical swivel joint | |
| CN209287546U (en) | The self-rotating nozzle of giant | |
| CN201041264Y (en) | Conduit line swivelling joint | |
| CN103615615B (en) | A kind of swivel joint | |
| CN201288908Y (en) | Rigid rotating joint | |
| CN213271447U (en) | Ferrule type pipe joint combined structure | |
| CN108869910A (en) | High-sealing-performflange flange is used in a kind of connection of pipeline | |
| CN209990907U (en) | Tail shaft follow-up combined sealing device | |
| CN210716138U (en) | Double-ball non-return joint with good sealing performance | |
| CN106287067A (en) | A kind of automobile brake hose joint of reinforced joint | |
| CN111520013B (en) | Dynamic sealing structure for heavy hinge and dynamic sealing ring thereof | |
| CN204114414U (en) | A kind of rapid pipe joint | |
| CN220186147U (en) | Rotary aviation pipe joint capable of eliminating relative displacement influence | |
| CN109737263B (en) | High-pressure sealing method for pipe joint | |
| CN110701406A (en) | Novel quick connector | |
| CN212203227U (en) | Hydraulic automatic reversing mechanism | |
| CN111878645A (en) | Pipe joint with anti-loosening structure | |
| CN204533913U (en) | Zero leakage swivel joint | |
| CN220850117U (en) | Mechanical seal for rotary oil-gas mixing pump | |
| CN209762247U (en) | Novel metal bellows mechanical seal device | |
| CN216279950U (en) | Rotary sealing device of aluminum battery composite calender | |
| CN217422533U (en) | Rotary joint with inner lip sealing structure | |
| CN218377687U (en) | Sealing device of acid and alkali corrosion resistant efficient spray gun |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |