CN211259944U - Rotary joint sealing structure - Google Patents
Rotary joint sealing structure Download PDFInfo
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- CN211259944U CN211259944U CN201922388721.5U CN201922388721U CN211259944U CN 211259944 U CN211259944 U CN 211259944U CN 201922388721 U CN201922388721 U CN 201922388721U CN 211259944 U CN211259944 U CN 211259944U
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Abstract
The utility model provides a rotary joint seal structure belongs to the rotary joint field. The rotary joint seal arrangement includes a housing assembly and a seal assembly. The sealing assembly comprises a ball part graphite ring, an outer tube ball sealing ring and an elastic piece, the ball part graphite ring is attached to the end face of the shell, the outer tube ball sealing ring is fixed on the outer surface of the outer tube, the ball part graphite ring is matched and in sealing contact with the outer tube ball sealing ring, and the other end of the elastic piece is connected with the compression end cover; the outer tube is in rotating contact with the shell to realize multilayer rotation, the elastic part is designed for the low-pressure outer tube ball sealing ring, so that the outer tube ball sealing ring is tightly attached to the ball part graphite ring, when the outer tube ball sealing ring is abraded, the elastic part can push the outer tube ball sealing ring to be attached to the ball part graphite ring, the sealing area is increased due to the spherical sealing structure, and the reliability and the stability of sealing are improved; the service cycle of the outer pipe ball sealing ring is prolonged, and the maintenance cost is reduced.
Description
Technical Field
The utility model relates to a rotary joint field particularly, relates to rotary joint seal structure.
Background
At present, the existing rotary joint generally includes an inner spindle and an outer spindle, both of which are in a through structure, the inner spindle is sleeved outside the outer spindle, and the inner spindle and the outer spindle are sealed by a sealing ring sleeved outside the inner spindle and embedded in the outer spindle.
The existing rotary joint is unreliable in sealing structure due to abrasion after being used for a period of time, and easily generates the phenomenon of leakage, leakage and leakage.
SUMMERY OF THE UTILITY MODEL
In order to compensate above not enough, the utility model provides a rotary joint seal structure aims at improving the sealing member wearing and tearing, leads to the not enough problem of sealing reliability.
The utility model discloses a realize like this:
the utility model provides a rotary joint seal structure, including casing subassembly and seal assembly.
The shell assembly comprises a shell and an outer tube, the outer tube is inserted in the shell, an inner tube is inserted in the outer tube, a limiting ring is fixed at one end of the inner tube, and a water receiving end cover and a pressing end cover are fixed at two ends of the shell respectively.
The sealing assembly comprises a ball part graphite ring, an outer tube ball sealing ring and an elastic part, the ball part graphite ring is attached to the end face of the shell, the outer tube ball sealing ring is fixed on the outer surface of the outer tube, the ball part graphite ring is in matched sealing contact with the outer tube ball sealing ring, one end of the elastic part is connected with the outer tube ball sealing ring, and the other end of the elastic part is connected with the compression end cover.
In an embodiment of the present invention, the end of the housing is provided with a sealing gasket, and the sealing gasket is attached to the inner surface of the water receiving end cover.
The utility model discloses an in one embodiment, the seal groove has been seted up to the shell tip, the seal groove annular sets up, sealed the pad setting is in the seal groove.
The utility model discloses an in the embodiment, water receiving end cover surface is connected with the water receiving mouth, the water receiving mouth runs through the water receiving end cover, the external screw thread has been seted up to water receiving mouth surface.
The utility model discloses an in the embodiment, the outer tooth has been seted up to the one end surface of shell, water receiving end cover inner wall seted up with outer tooth threaded connection's inner tooth, water receiving end cover surface prism sets up.
The utility model discloses an in one embodiment, shell one end set up threaded hole, compress tightly the end cover surface set up with the corresponding counter bore of screw hole, the counter bore in-connection have with the screw that the screw hole is connected.
In an embodiment of the present invention, the hollow of the housing is provided with a groove, the bottom of the groove is provided with a through groove, the groove is coaxial with the through groove, and the outer tube is slidably inserted into the through groove.
In an embodiment of the present invention, the ball portion graphite ring is disposed at the bottom of the groove, the outer surface of the outer tube is sleeved with a compression ring, the compression ring is disposed between the elastic member and the outer tube ball sealing ring, and the elastic member and the outer tube ball sealing ring are disposed in the groove.
In an embodiment of the present invention, the inner wall of the through groove has a ball groove, and the ball groove is provided with a ball.
The utility model discloses an in one embodiment, the draw-in groove has been seted up to logical inslot wall, the joint has the jump ring in the draw-in groove, the draw-in groove is seted up the ball groove outside.
The utility model has the advantages that: the utility model discloses a rotary joint seal structure that above-mentioned design obtained, during the use, through setting up water receiving end cover and compressing tightly the end cover, with outer tube and inner tube seal in the shell, the inner tube rotates with outer tube seal and pegs graft, the convenient rotation is used, outer tube and shell rotate the contact, realize the multilayer rotation, the design of elastic component is used for low pressure outer tube spheroid sealing ring, make outer tube spheroid sealing ring and ball portion graphite ring closely laminate, when outer tube spheroid sealing ring weared and torn, can promote outer tube spheroid sealing ring and ball portion graphite ring laminating at the elastic component, spherical seal structure, increase the sealing area, the reliability and the stability of sealing have been improved; the service cycle of the outer pipe ball sealing ring is prolonged, and the maintenance cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram of an external structure provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a housing according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an internal structure provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a point a in fig. 3 according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a position B in fig. 3 according to an embodiment of the present invention.
In the figure: 100-a housing assembly; 110-a housing; 111-grooves; 113-a through slot; 115-ball grooves; 116-a ball bearing; 117-card slot; 118-a snap spring; 130-an outer tube; 131-a seal groove; 133-a gasket; 150-water-receiving end cover; 151-water receiving port; 153-external threads; 170-pressing the end cover; 171-screw; 190-inner tube; 191-a limit ring; 300-a seal assembly; 310-ball graphite ring; 330-outer tube sphere sealing ring; 350-an elastic member; 351-pressure ring.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the utility model provides a. Embodiments, all other embodiments obtained by a person skilled in the art without any inventive step are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Examples
Referring to fig. 1-5, the present invention provides a technical solution: the rotary joint sealing structure includes a housing assembly 100 and a seal assembly 300.
Wherein, the sealing assembly 300 is disposed inside the casing assembly 100 for sealing the casing assembly 100 and sealing the leakage.
Referring to fig. 1-2, the housing assembly 100 includes an outer housing 110 and an outer housing 130, the outer housing 130 is inserted into the outer housing 110, an inner tube 190 is inserted into the outer housing 130, a limiting ring 191 is fixed at one end of the inner tube 190, a water receiving end cap 150 and a pressing end cap 170 are respectively fixed at two ends of the outer housing 110, a sealing gasket 133 is disposed at an end of the outer housing 110, the sealing gasket 133 is attached to an inner surface of the water receiving end cap 150, a sealing groove 131 is disposed at an end of the outer housing 110, the sealing groove 131 is annularly disposed, the sealing gasket 133 is disposed in the sealing groove 131 to seal a connection portion between the water receiving end cap 150 and the outer housing 110, so as to reduce a possibility of liquid leakage, a water receiving port 151 is connected to a surface of the water receiving end cap 150, the water receiving port 151 penetrates through the water receiving end cap 150, an external thread 153 is disposed on an outer surface, the water receiving end cover 150 is convenient to mount and dismount and convenient to maintain, a threaded hole is formed in one end of the shell 110, a counter bore corresponding to the threaded hole is formed in the surface of the pressing end cover 170, and a screw 171 connected with the threaded hole is connected in the counter bore to facilitate fixing of the pressing end cover 170.
Referring to fig. 3-4, the sealing assembly 300 includes a spherical graphite ring 310, an outer tube spherical sealing ring 330 and an elastic member 350, the elastic member 350 may be a spring, the spherical graphite ring 310 is attached to an end surface of the housing 110, the outer tube spherical sealing ring 330 is fixed on an outer surface of the outer tube 130, the spherical graphite ring 310 is in sealing contact with the outer tube spherical sealing ring 330 in a matching manner, one end of the elastic member 350 is connected with the outer tube spherical sealing ring 330, the other end of the elastic member 350 is connected with the pressing end cap 170, the housing 110 is hollow and provided with a groove 111, the bottom of the groove 111 is provided with a through groove 113, the groove 111 is coaxial with the through groove 113, the outer tube 130 is slidably inserted into the through groove 113, the spherical graphite ring 310 is disposed at the bottom of the groove 111, the outer surface of the outer tube 130 is sleeved with a pressing ring, 351, the ball groove 115 has been seted up to logical groove 113 inner wall, is provided with ball 116 in the ball groove 115, and logical groove 113 inner wall has seted up draw-in groove 117, and the joint has jump ring 118 in the draw-in groove 117, and draw-in groove 117 sets up in the ball groove 115 outside, and the structural design of ball 116 makes outer tube 130 can steady operation, makes rotary joint rotate steadily, and the atress is even, does not influence rotary joint's leakproofness, reduces outer tube 130 wearing and tearing simultaneously.
The working principle of the rotary joint sealing structure is as follows: when the ball sealing ring is used, the outer pipe 130 and the inner pipe 190 are sealed in the outer shell 110 by arranging the water receiving end cover 150 and the pressing end cover 170, the inner pipe 190 and the outer pipe 130 are sealed, rotatably inserted and connected, so that the outer pipe 130 and the outer shell 110 are conveniently rotated and used, multi-layer rotation is realized, the elastic part 350 is designed for the low-pressure outer pipe ball sealing ring 330, so that the outer pipe ball sealing ring 330 is tightly attached to the ball graphite ring 310, when the outer pipe ball sealing ring 330 is worn, the elastic part 350 can push the outer pipe ball sealing ring 330 to be attached to the ball graphite ring 310, the sealing area is increased, and the sealing reliability and stability are improved; the service cycle of the outer pipe ball sealing ring 330 is prolonged, and the maintenance cost is reduced.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The rotary joint sealing structure is characterized by comprising
The shell assembly (100) comprises an outer shell (110) and an outer tube (130), the outer tube (130) is inserted into the outer shell (110), an inner tube (190) is inserted into the outer tube (130), a limiting ring (191) is fixed at one end of the inner tube (190), and a water receiving end cover (150) and a pressing end cover (170) are respectively fixed at two ends of the outer shell (110);
seal assembly (300), seal assembly (300) include ball portion graphite ring (310), outer tube spheroid sealing ring (330) and elastic component (350), ball portion graphite ring (310) laminate in shell (110) terminal surface, outer tube spheroid sealing ring (330) are fixed outer tube (130) surface, ball portion graphite ring (310) and outer tube spheroid sealing ring (330) cooperation sealing contact, elastic component (350) one end with outer tube spheroid sealing ring (330) are connected, the other end of elastic component (350) with compress tightly end cover (170) and connect.
2. The rotary joint sealing structure according to claim 1, wherein a sealing gasket (133) is arranged at the end part of the shell (110), and the sealing gasket (133) is attached to the inner surface of the water receiving end cover (150).
3. The rotary joint sealing structure according to claim 2, wherein a sealing groove (131) is formed at an end of the housing (110), the sealing groove (131) is annularly arranged, and the sealing gasket (133) is arranged in the sealing groove (131).
4. The rotary joint sealing structure according to claim 1, wherein a water receiving opening (151) is connected to the surface of the water receiving end cover (150), the water receiving opening (151) penetrates through the water receiving end cover (150), and an external thread (153) is formed on the outer surface of the water receiving opening (151).
5. The rotary joint sealing structure according to claim 1, wherein an outer surface of one end of the outer shell (110) is provided with external teeth, an inner wall of the water receiving end cover (150) is provided with internal teeth in threaded connection with the external teeth, and an outer surface of the water receiving end cover (150) is arranged in a prismatic shape.
6. The rotary joint sealing structure according to claim 5, wherein a threaded hole is opened at one end of the housing (110), a counter bore corresponding to the threaded hole is opened on the surface of the pressing end cover (170), and a screw (171) connected with the threaded hole is connected in the counter bore.
7. The rotary joint sealing structure according to claim 1, wherein the housing (110) is hollow and provided with a groove (111), a through groove (113) is formed at the bottom of the groove (111), the groove (111) and the through groove (113) are coaxially arranged, and the outer pipe (130) is slidably inserted into the through groove (113).
8. The rotary joint seal structure according to claim 7, wherein the ball portion graphite ring (310) is disposed at the bottom of the groove (111), the outer tube (130) is externally sleeved with a press ring (351), the press ring (351) is disposed between the elastic member (350) and the outer tube ball sealing ring (330), and both the elastic member (350) and the outer tube ball sealing ring (330) are disposed within the groove (111).
9. The rotary joint sealing structure according to claim 8, wherein a ball groove (115) is formed in an inner wall of the through groove (113), and a ball (116) is disposed in the ball groove (115).
10. The rotary joint sealing structure according to claim 9, wherein a clamping groove (117) is formed in an inner wall of the through groove (113), a clamping spring (118) is clamped in the clamping groove (117), and the clamping groove (117) is formed outside the ball groove (115).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922388721.5U CN211259944U (en) | 2019-12-26 | 2019-12-26 | Rotary joint sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922388721.5U CN211259944U (en) | 2019-12-26 | 2019-12-26 | Rotary joint sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211259944U true CN211259944U (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922388721.5U Active CN211259944U (en) | 2019-12-26 | 2019-12-26 | Rotary joint sealing structure |
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| CN (1) | CN211259944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115596911A (en) * | 2022-10-20 | 2023-01-13 | 鲁西工业装备有限公司（Cn） | Rotary joint of oil filling riser |
-
2019
- 2019-12-26 CN CN201922388721.5U patent/CN211259944U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115596911A (en) * | 2022-10-20 | 2023-01-13 | 鲁西工业装备有限公司（Cn） | Rotary joint of oil filling riser |
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