CN107091382B - Self-locking rigid pipe connector with inner joint - Google Patents
Self-locking rigid pipe connector with inner joint Download PDFInfo
- Publication number
- CN107091382B CN107091382B CN201710352190.7A CN201710352190A CN107091382B CN 107091382 B CN107091382 B CN 107091382B CN 201710352190 A CN201710352190 A CN 201710352190A CN 107091382 B CN107091382 B CN 107091382B
- Authority
- CN
- China
- Prior art keywords
- pipe
- wall
- locking
- snap ring
- self
- 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
- 238000007789 sealing Methods 0.000 claims description 10
- 210000002445 nipple Anatomy 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 3
- 241000309551 Arthraxon hispidus Species 0.000 abstract description 5
- 230000001154 acute effect Effects 0.000 abstract description 4
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 206010040007 Sense of oppression Diseases 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0206—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the collar not being integral with the pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/005—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts comprising locking means for the threaded member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
- F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a self-locking hard pipe joint part with an inner joint, which comprises a joint head, wherein the joint head comprises an outer locking sleeve, an inner connecting pipe and a movable clamping ring, the outer locking sleeve is provided with a first inner wall, the inner wall of the outer locking sleeve is also provided with an annular groove, and the annular groove comprises a front clamping ring retaining wall, a rear clamping ring retaining wall and at least two groove cavities with different inner diameters, and the annular groove comprises a first-stage groove cavity and a second-stage groove cavity respectively. The invention discloses a self-locking rigid pipe connecting piece with an inner joint, which is externally provided with at least two stages of groove cavities with different inner diameters in a locking sleeve mode, so that a movable clamping ring is in a limited state in a first stage of groove cavity, and is in a free expansion space in a second stage of groove cavity, and the phenomenon that the connecting piece is in a self-locking working state to push and press the movable clamping ring to deform inwards at an acute angle for a long time to influence disassembly and assembly is avoided.
Description
Technical Field
The invention relates to the technical field of pipeline joints, in particular to a self-locking hard pipe joint connector with an inner joint.
Background
Chinese patent application No. 2016610952429. X the tip be equipped with the hard tube connecting piece of bulge loop, it includes sealing washer and interconnection takeover, the hard tube cover that the tip was equipped with the bulge loop is including connecting the pipe both ends, and the tip of interconnection takeover one end is equipped with the hard tube of bulge loop and interconnection takeover between be provided with at least one sealing washer, still include fixed cover and anticreep elastic ring, the cover has fixed cover between the hard tube that two tip were equipped with the bulge loop on the interconnection takeover, the anticreep elastic ring sets up in the fixed slot that the tip inboard set up at fixed cover both ends, be provided with fixed interior boss between the fixed slot, the anticreep elastic ring cover is located between the bulge loop on fixed slot outward flange and the hard tube tip, the outward flange of fixed slot is little interior big cone, and when external force pulls out the hard tube, the lid cone edge can play the effect of oppression elastic ring. The conventional rigid pipeline connection structure mostly adopts the inclined plane to compress the elastic ring, but because the pipeline connection mode can keep a certain degree of tension in the actual working environment, the elastic ring is always positioned in an acute angle space formed by the rigid pipe and the fixed groove together, and is more compact, and finally, deformation is easy to occur, and the elastic ring can be lost, so that the elastic ring cannot be normally disassembled and assembled.
Disclosure of Invention
The invention provides a self-locking hard pipe connector with an inner joint, which can avoid the situation that a movable clamping ring is propped and pressed inwards towards an acute angle for a long time under the self-locking working state, and avoid the deformation of the movable clamping ring to influence disassembly and assembly.
The utility model provides a self-locking rigid pipe joint with nipple, includes the head of plugging into, the head of plugging into includes outer locking sleeve, interior connecting pipe and movable snap ring, the front end of head of plugging into is the grafting port, outer locking sleeve has first inner wall, first inner wall and interior outer wall looks adaptation and fixed connection of connecting pipe, the inner wall of outer locking sleeve still is equipped with the ring channel, the ring channel includes preceding snap ring retaining wall, back snap ring retaining wall and the different cell chamber of at least two-stage internal diameter, includes first level cell chamber and second level cell chamber respectively, first level cell chamber has first diapire, second level cell chamber has the second diapire, first level cell chamber is closer to the grafting port than second level cell chamber, preceding snap ring retaining wall is connected with the front end of first diapire, back snap ring retaining wall is connected with the rear end of second diapire, movable snap ring is arranged in the ring channel, the radial extension, the change that contracts, the second diapire is H with the first inner wall, first inner wall and first inner wall are satisfied for H to the first distance, H is satisfied to the first inner wall. H > H. The movable snap ring is arranged along the annular groove, and members which extend and retract along the radial direction of the connector are generated to a certain extent, such as a spring ring, a metal ring with a notch, a ring formed by stringing hollow beads and soft ropes, and the like, and even a plurality of balls which are annularly arranged in the annular groove.
Further, the outer locking sleeve comprises a sleeve head and a threaded locking piece, the sleeve head is in threaded connection with the threaded locking piece, and the annular groove is formed by splicing the sleeve head and the threaded locking piece.
The self-locking hard pipe connector with the inner joint further comprises an insertion pipe and a sealing ring, wherein the inner diameter of the insertion pipe is matched with the outer diameter of the inner connection pipe, the outer wall of the insertion pipe is provided with a clamping ring locking station protruding outwards, the sealing ring is positioned between the insertion pipe and the inner connection pipe, the height difference between the top end of the clamping ring locking station and the outer wall of the insertion pipe is L, and the section width of the movable clamping ring is d, so that the requirements are met: h-d is greater than or equal to L, and M+d is greater than or equal to H and greater than or equal to d.
Still further, the self-locking rigid pipe connector with nipple further comprises a connector portion having at least one connector port fixedly connected to the rear end of the corresponding connector head. The connecting part is one of an elbow pipe fitting, a three-way pipe fitting and a four-way pipe fitting with different diameters or equal diameters.
The invention discloses a self-locking rigid pipe connecting piece with an inner joint, which is externally provided with at least two stages of groove cavities with different inner diameters in a locking sleeve mode, so that a movable clamping ring is in a limited state in a first stage of groove cavity, and is in a free expansion space in a second stage of groove cavity, and the phenomenon that the connecting piece is in a self-locking working state to push and press the movable clamping ring to deform inwards at an acute angle for a long time to influence disassembly and assembly is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings described are only some embodiments of the invention, but not all embodiments, and that other designs and drawings can be obtained from these drawings by a person skilled in the art without inventive effort.
FIG. 1 is a schematic view of the structure of the docking head;
fig. 2 is a schematic view of the structure of the connector and the plug tube when in use.
Detailed Description
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention. In addition, all coupling/connection relationships mentioned herein do not refer to direct connection of the components, but rather, refer to the fact that a more optimal coupling structure may be formed by adding or subtracting coupling aids depending on the particular implementation. The technical features in the invention can be interactively combined on the premise of no contradiction and conflict.
As shown in fig. 1 and 2, a self-locking hard pipe joint with an inner joint comprises a joint head 1, wherein the joint head 1 comprises an outer locking sleeve 11, an inner connecting pipe 12, a sealing ring 13 and a movable clamping ring 14, the front end of the joint head 1 is a plugging port, the outer locking sleeve 11 is provided with a first inner wall 111, the first inner wall 111 is matched with and fixedly connected with the outer wall of the inner connecting pipe 12, and the inner connecting pipe 12 is provided with a groove for the sealing ring 13 to be embedded, and the self-locking hard pipe joint is characterized in that: the inner wall of the outer locking sleeve 11 is further provided with an annular groove, the annular groove comprises a front clamping ring retaining wall 112, a rear clamping ring retaining wall 115 and at least two groove cavities with different inner diameters, the annular groove cavities respectively comprise a first-stage groove cavity and a second-stage groove cavity, the first-stage groove cavity is provided with a first bottom wall 113, the second-stage groove cavity is provided with a second bottom wall 114, the first-stage groove cavity is closer to an inserting port than the second-stage groove cavity, the front clamping ring retaining wall 112 is connected with the front end of the first bottom wall 113, the rear clamping ring retaining wall 115 is connected with the rear end of the second bottom wall 114, the movable clamping ring 14 is arranged in the annular groove, the movable clamping ring 14 can stretch and shrink in the radial direction, the distance between the second bottom wall 114 and the first inner wall 111 is H, and the distance between the first bottom wall 113 and the first inner wall 111 is H, and the following are: h > H.
As a further preferred embodiment, the outer locking sleeve 11 comprises a sleeve head and a threaded locking member which are screwed together, and the annular groove is formed by splicing the sleeve head and the threaded locking member.
As a further preferred embodiment, the plug pipe further comprises a plug pipe 2 and a sealing ring 13, the inner diameter of the plug pipe 2 is matched with the outer diameter of the inner connecting pipe 12, the outer wall of the plug pipe 2 is provided with a clamping ring locking station protruding outwards, the sealing ring 13 is positioned between the plug pipe 2 and the inner connecting pipe 12, the height difference between the top end of the clamping ring locking station and the outer wall of the plug pipe 2 is L, and the section width of the movable clamping ring 14 is d, so that the following conditions are satisfied: h-d is more than or equal to L and more than or equal to H-d is more than or equal to 0. The plug tube 2 is inserted into the plug head 1 from the plug port. The inner diameter of the movable snap ring 14 in the normal state is slightly smaller than the outer diameter of the plug tube 2, so that the movable snap ring 14 can be pushed to move towards the second-stage groove cavity by the plug tube 2, and is deformed and expanded after being blocked by the rear snap ring blocking wall 115, so that the plug tube 2 can continuously enter the connector 1 until the movable snap ring 14 falls into a snap ring locking station. When the movable clamp ring 14 is connected with the clamp ring locking station, even if the plug-in pipe 2 is reversely pulled out, the movable clamp ring 14 can move towards the first-stage groove cavity under the drive of the clamp ring locking station, and the space in the first-stage groove cavity is insufficient for the movable clamp ring 14 to be separated from the clamp ring locking station, so that the plug-in pipe 2 and the plug-in head 1 realize self locking.
As a further preferred embodiment, it further comprises a connection part having at least one connection port fixedly connected with the rear end of the corresponding connection head 1.
As a further preferable embodiment, the connection part is one of a bend pipe fitting, a three-way pipe fitting and a four-way pipe fitting with different or equal diameters.
While the preferred embodiments of the present invention have been illustrated and described, the present invention is not limited to the embodiments, and various equivalent modifications and substitutions can be made by one skilled in the art without departing from the spirit of the present invention, and these are intended to be included in the scope of the present invention as defined in the appended claims.
Claims (3)
1. The utility model provides a piece is refuted to self-locking stereoplasm pipe with nipple, includes connector (1), connector (1) are including outer locking cover (11), interior connecting pipe (12) and movable snap ring (14), the front end of connector (1) is the grafting port, outer locking cover (11) have first inner wall (111), outer wall looks adaptation and fixed connection of first inner wall (111) and interior connecting pipe (12), its characterized in that: the inner wall of outer locking cover (11) still is equipped with the ring channel, the ring channel includes preceding snap ring retaining wall (112), back snap ring retaining wall (115) and the different cell chamber of at least two-stage internal diameter, includes first level cell chamber and second level cell chamber respectively, first level cell chamber has first diapire (113), second level cell chamber has second diapire (114), first level cell chamber is closer to the grafting port than second level cell chamber, preceding snap ring retaining wall (112) are connected with the front end of first diapire (113), back snap ring retaining wall (115) are connected with the rear end of second diapire (114), movable snap ring (14) are arranged in the ring channel, movable snap ring (14) can radially stretch, contract and change, the distance of second diapire (114) and first inner wall (111) is H, the distance of first diapire (113) and first inner wall (111) is H, satisfies:
H＞h；
the outer locking sleeve (11) comprises a sleeve head and a threaded locking piece, the sleeve head is in threaded connection with the threaded locking piece, and the annular groove is formed by splicing the sleeve head and the threaded locking piece;
still including inserting pipe (2) and sealing washer (13), the external diameter looks adaptation of grafting pipe (2) and interior connecting pipe (12), the outer wall of grafting pipe (2) is equipped with the bellied snap ring locking station in outside, sealing washer (13) are located between grafting pipe (2) and interior connecting pipe (12), the difference in height of snap ring locking station top department and grafting pipe (2) outer wall is L, the cross-section width of activity snap ring (14) is d, satisfies:
H-d≥L；
and L+d > h is greater than or equal to d.
2. The self-locking rigid pipe joint with nipple according to claim 1, wherein: the connecting device further comprises a connecting part, wherein the connecting part is provided with at least one connecting port, and the connecting port is fixedly connected with the rear end of the corresponding connecting head (1).
3. The self-locking rigid pipe joint with nipple according to claim 2, wherein: the connecting part is one of an elbow pipe fitting, a three-way pipe fitting and a four-way pipe fitting with different diameters or equal diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710352190.7A CN107091382B (en) | 2017-05-18 | 2017-05-18 | Self-locking rigid pipe connector with inner joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710352190.7A CN107091382B (en) | 2017-05-18 | 2017-05-18 | Self-locking rigid pipe connector with inner joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107091382A CN107091382A (en) | 2017-08-25 |
| CN107091382B true CN107091382B (en) | 2024-01-19 |
Family
ID=59638263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710352190.7A Active CN107091382B (en) | 2017-05-18 | 2017-05-18 | Self-locking rigid pipe connector with inner joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107091382B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109498197A (en) * | 2018-12-29 | 2019-03-22 | 深圳金海螺科技有限公司 | Electric tooth-brush |
| CN210318792U (en) * | 2019-07-12 | 2020-04-14 | 浙江达柏林阀门有限公司 | Scale-proof valve core |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1440498A (en) * | 2000-07-06 | 2003-09-03 | 安东-胡梅尔管理有限公司 | Connecting fitting for peripherally ribbed longitudinal bodies with locking retaining projecting element |
| CN2656778Y (en) * | 2003-12-03 | 2004-11-17 | 叶呈标 | Reinforced plastic composite pipe connection piece and reinforced plastic composite pipe |
| CN101076689A (en) * | 2004-10-13 | 2007-11-21 | 伊顿公司 | Low pressure fitting |
| CN101614308A (en) * | 2009-06-23 | 2009-12-30 | 伍婧绫 | A kind of directly-pushing connecting pipe joint |
| CN101806381A (en) * | 2010-05-28 | 2010-08-18 | 浙江苏强格液压有限公司 | Connector and connecting pipe movable connection structure, connecting process and assembling tool thereof |
| CN106439330A (en) * | 2016-11-02 | 2017-02-22 | 崔咪笑 | Rigid tube connecting piece with end provided with convex ring |
| CN206973097U (en) * | 2017-05-18 | 2018-02-06 | 潘汝锦 | From locking stereoplasm tube connecting parts |
-
2017
- 2017-05-18 CN CN201710352190.7A patent/CN107091382B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1440498A (en) * | 2000-07-06 | 2003-09-03 | 安东-胡梅尔管理有限公司 | Connecting fitting for peripherally ribbed longitudinal bodies with locking retaining projecting element |
| CN2656778Y (en) * | 2003-12-03 | 2004-11-17 | 叶呈标 | Reinforced plastic composite pipe connection piece and reinforced plastic composite pipe |
| CN101076689A (en) * | 2004-10-13 | 2007-11-21 | 伊顿公司 | Low pressure fitting |
| CN101614308A (en) * | 2009-06-23 | 2009-12-30 | 伍婧绫 | A kind of directly-pushing connecting pipe joint |
| CN101806381A (en) * | 2010-05-28 | 2010-08-18 | 浙江苏强格液压有限公司 | Connector and connecting pipe movable connection structure, connecting process and assembling tool thereof |
| CN106439330A (en) * | 2016-11-02 | 2017-02-22 | 崔咪笑 | Rigid tube connecting piece with end provided with convex ring |
| CN206973097U (en) * | 2017-05-18 | 2018-02-06 | 潘汝锦 | From locking stereoplasm tube connecting parts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107091382A (en) | 2017-08-25 |
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