CN109340484B - Quick connecting clamp for pipeline - Google Patents
Quick connecting clamp for pipeline Download PDFInfo
- Publication number
- CN109340484B CN109340484B CN201811535127.8A CN201811535127A CN109340484B CN 109340484 B CN109340484 B CN 109340484B CN 201811535127 A CN201811535127 A CN 201811535127A CN 109340484 B CN109340484 B CN 109340484B
- Authority
- CN
- China
- Prior art keywords
- ring
- clamp
- annular
- sealing ring
- groove
- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 70
- 239000007788 liquid Substances 0.000 claims description 11
- 230000007423 decrease Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 241000283216 Phocidae Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- 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
- F16L21/00—Joints with sleeve or socket
- F16L21/06—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe-ends
- F16L21/065—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe-ends tightened by tangentially-arranged threaded pins
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Joints With Sleeves (AREA)
Abstract
The invention discloses a quick-connection clamp for a pipeline, which comprises two clamp bodies in a semi-annular shape, wherein two ends of each clamp body are respectively provided with a lug for receiving a threaded connecting piece, two convex ribs which radially inwards protrude and extend along the circumferential direction of an inner annular surface are arranged on the inner annular surface of each clamp body at intervals, and a sealing ring groove positioned between the convex ribs is arranged on the inner annular surface; the two clamp bodies may be joined together end to end by bolts passing through the lugs; the two clamp bodies can enclose a central space for receiving a pipeline after being connected end to end, and a sealing ring arranged in a sealing ring groove is arranged in the central space; the distance between the groove bottom of the sealing ring groove and the inner ring surface of the convex rib is the groove depth; the groove depth is greatest in the middle of the clamp body and smallest in the end of the clamp body. The clamp of this structure can effectively guarantee the abundant contact of sealing washer and pipeline, can guarantee sealed effect.
Description
Technical Field
The invention relates to a clamp for pipeline connection, in particular to a pipeline quick-connection clamp.
Background
At present, the quick connecting clamp for pipelines is widely used for connecting pipelines due to the convenient use and high connecting speed. The existing pipeline quick connection clamp comprises two clamp bodies in a semi-annular shape, wherein lugs for receiving threaded connectors are respectively arranged at two ends of each clamp body, two convex ribs which radially protrude inwards and extend along the circumferential direction of an inner annular surface are arranged on the inner annular surface of each clamp body at intervals, and sealing ring grooves positioned between the convex ribs are arranged on the inner annular surface; the two clamp bodies may be joined together end to end by bolts passing through the lugs; the two clamp bodies can enclose a central space for receiving a pipeline after being connected end to end, and a sealing ring arranged in the sealing ring groove is arranged in the central space.
The pipeline quick connection clamp with the structure mainly has the following defects: the distance between the groove bottom of the sealing ring groove and the inner ring surface of the convex rib is the groove depth, and the groove depth is the same from the middle part of the clamp body to the two end parts; because the periphery of the sealing ring of the pipeline quick connection clamp is larger than the sum of the lengths of the sealing ring grooves of the two clamp bodies, after the two clamp bodies are assembled together, the end parts of the two clamp bodies are spaced, when the clamp sleeve is fastened on a pipeline, the sealing ring is pressed and deformed to protrude from the spaced parts, and poor contact between the section corresponding to the protruding part of the sealing ring and the pipeline is easily caused, so that the sealing failure is caused. Secondly, be connected with the retaining ring on the body of sealing washer, owing to this retaining ring links firmly integratively with the body of sealing washer, the retaining ring can hinder the free shrink of sealing washer when the clamp locks, causes sealing washer and retaining ring to form corrugated unevenness to along with the ageing of sealing washer, the retaining ring can drive the sealing washer and shrink inwards, makes the body of sealing washer and ring lip bond together, thereby loses the effect of self sealss, causes sealed inefficacy.
Disclosure of Invention
One of the technical problems to be solved by the invention is to provide a quick connecting clamp for a pipeline, wherein a sealing ring is not easy to protrude from the interval between two clamp bodies when the clamp is fastened, so that the sealing failure caused by poor contact between the sealing ring and the pipeline can be avoided.
In order to solve the technical problems, the invention provides a pipeline quick connection clamp with the following structure, which comprises two clamp bodies in a semi-annular shape, wherein two ends of each clamp body are respectively provided with a lug for receiving a threaded connecting piece, two convex ribs which radially inwards protrude and extend along the circumferential direction of an inner annular surface are arranged on the inner annular surface of each clamp body at intervals, and a sealing ring groove positioned between the convex ribs is arranged on the inner annular surface; the two clamp bodies may be joined together end to end by bolts passing through the lugs; the two clamp bodies can enclose a central space for receiving a pipeline after being connected end to end, and a sealing ring arranged in a sealing ring groove is arranged in the central space; the structure is characterized in that: the distance between the bottom of the sealing ring groove and the inner annular surface of the convex rib is the groove depth; the groove depth is greatest in the middle of the clamp body and smallest in the end of the clamp body.
The groove depth gradually decreases from the middle part of the clamp body to the two end parts.
The sealing ring groove is arranged concentrically with the inner ring surface of the convex rib.
The groove depth is set to be the largest in the middle of the clamp body and the groove depth is set to be the smallest in the end of the clamp body, so that when the clamp is fastened, the deformation allowance of the sealing ring can be converged from the end of the clamp body to the middle of the clamp body after the sealing ring is pressed and deformed, the phenomenon that the sealing ring protrudes out between the ends of the clamp body after the sealing ring is pressed and deformed is difficult to occur, the sealing ring can be effectively ensured to be fully contacted with a pipeline, and the sealing effect can be ensured.
The second technical problem to be solved by the invention is to further adopt the following scheme based on the technical scheme aiming at the second defect:
The sealing ring comprises a rubber ring body, two ends of the rubber ring body are respectively provided with an end wall which is connected with the rubber ring body into a whole and is provided with an axial through hole at the central part, the inner edge of the end wall is axially inwards protruded to form a ring lip, and the sealing ring also comprises a check ring which is not directly connected with the rubber ring body into a whole.
The number of the check rings is two and the check rings are respectively connected to the two annular lips.
The inner wall surface of the rubber ring body is annularly provided with a plurality of protruding blocks, the protruding blocks are provided with inserting holes, and the retainer rings are inserted into the inserting holes.
And the inner ring surface of the retainer ring is connected with a guide sleeve.
An annular connector is inserted between the rubber ring body and the annular lip, an annular cavity is formed by the hollow arrangement of the annular connector, an opening is formed in the outer annular surface of the annular connector along the circumferential direction of the annular connector, and the retainer ring is connected to the inner annular surface of the annular connector.
And a plurality of liquid through holes are formed in the inner ring surface of the retainer ring in a ring mode, and the liquid through holes are communicated with the ring cavity.
The retainer ring is not directly connected with the rubber ring body into a whole, the retainer ring not only plays a limiting role, but also can not prevent the free shrinkage of the sealing ring when the clamp is locked, so that the sealing ring and the retainer ring form corrugated unevenness, and the retainer ring can not drive the sealing ring to shrink inwards along with the aging of the sealing ring, so that the sealing failure caused by the fact that the body and the ring lip of the sealing ring are bonded together and lose self-sealing effect is avoided.
Drawings
The following detailed description of specific embodiments of the invention refers to the accompanying drawings, which illustrate in further detail:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic illustration of the structure of the clamp body of FIG. 1, showing the clamp body in front view, taken along a center line of rotation perpendicular to the clamp body;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic illustration of one form of seal ring;
FIG. 5 is a schematic view of a second form of seal ring;
FIG. 6 is a schematic view of a third construction of a seal ring;
Fig. 7 is a schematic view of a fourth embodiment of the sealing ring.
Detailed Description
Referring to fig. 1-3, the pipe quick connection clamp comprises two clamp bodies 1 which are semi-annular, lugs 2 for receiving threaded connectors are respectively arranged at two ends of each clamp body, two convex ribs 3 which radially protrude inwards and extend along the circumferential direction of an inner annular surface are arranged on the inner annular surface of each clamp body at intervals, sealing ring grooves 4 between the convex ribs are arranged on the inner annular surface, the sealing ring grooves 4 and the inner annular surfaces of the convex ribs are concentrically arranged, and the concentric arrangement can simplify the structure of a casting die and reduce the processing difficulty and reduce the deformation of castings. The two clamp bodies can be joined together end to end by bolts 5 passing through the lugs; the two clamp bodies can enclose a central space for receiving a pipeline after being connected end to end, and a sealing ring 6 arranged in the sealing ring groove 4 is arranged in the central space. Referring to fig. 2, the distance between the groove bottom of the seal ring groove 4 and the inner annular surface of the convex rib 3 is the groove depth; the distance is along the radial line direction of the inner ring surface of the bead 3, that is, in the view of fig. 2, the distance between two intersecting points is the groove depth after the radial line passing through the rotation center of the clip body intersects with the projection contour line of the groove bottom of the seal ring groove 4 and the projection contour line of the inner ring surface of the bead 3. The groove depth is maximum in the middle of the clamp body 1 and minimum at the end of the clamp body 1; h in fig. 2 represents the groove depth of the middle portion of the clip body 1, and H represents the groove depths of both end portions of the clip body 1. The groove depth gradually decreases from the middle part of the clamp body 1 to the two end parts, namely, the numerical value from H to H gradually decreases. The groove depth is gradually reduced from the middle part of the clamp body 1 to the two end parts, so that the deformation of the sealing ring can be well contained, and the sealing ring can be effectively prevented from protruding out from between the end parts of the two clamp bodies after being deformed under pressure.
The above-mentioned sealing washer 6 is a structural style as shown in fig. 4, and the sealing washer includes the rubber ring body 7, and the both ends of rubber ring body 7 respectively are equipped with and link as an organic whole with the rubber ring body and the central point is equipped with the end wall 8 of axial through-hole, the annular lip 9 of protruding formation in the end wall inward flange axial, the sealing washer still includes retaining ring 10, and retaining ring 10 can play the location spacing effect to the pipeline of inserting in the clamp to prevent that the pipeline from excessively inserting. The check ring 10 is not directly connected with the rubber ring body 7 into a whole, and the check rings 10 are two and are respectively connected to the two ring lips 9.
The second structural style of sealing washer 6 is as shown in fig. 5, and the sealing washer includes rubber ring body 7, and the both ends of rubber ring body 7 respectively are equipped with and even as an organic whole with the rubber ring body and the central part is equipped with the end wall 8 of axial through-hole, the annular lip 9 of protruding formation in the end wall inward-axis, the sealing washer still includes retaining ring 10, a plurality of lugs 11 are established to the ring on the internal face of rubber ring body, be equipped with the socket on the lug 11, retaining ring 10 is as an organic whole with the rubber ring body 7 directly not, the cartridge that retaining ring 10 can make things convenient for the dismouting is in the socket. The third structural form of the sealing ring 6 is shown in fig. 6, and is an improvement based on the second structural form, and the improvement is that a guide sleeve 12 is connected to the inner ring surface of the retainer ring 10, and the guide sleeve 12 can be inserted into a pipeline to guide the pipeline into which the clamping hoop is inserted.
The fourth structural style of sealing washer 6 is as shown in fig. 7, and the sealing washer includes rubber ring body 7, and the both ends of rubber ring body 7 respectively are equipped with and link as an organic whole with the rubber ring body and the central part is equipped with the end wall 8 of axial through-hole, the annular lip 9 of protruding formation in the end wall inward flange axial, insert between rubber ring body and the annular lip, annular connector 13 cavity setting forms ring chamber 14, along its circumference on the outer anchor ring of annular connector set up with the opening 15 of ring chamber 14 intercommunication, the sealing washer still includes retaining ring 10, retaining ring 10 connects on the inner anchor ring of annular connector. In order to prevent the sealing space from being formed between the annular connector 13 and the rubber ring body 7 and between the annular connector and the rubber ring body 9, liquid cannot enter between the annular lip and the rubber ring body, so that the self-sealing function of the annular lip is lost, a plurality of liquid through holes 16 are formed in the inner annular surface of the retainer ring in a surrounding manner, the liquid through holes 16 are communicated with the annular cavity 14, and the liquid can enter between the annular lip and the rubber ring body from the liquid through holes 16.
Claims (3)
1. The utility model provides a pipeline quick connection clamp, includes two clamp bodies that are semi-annular, the both ends of clamp body respectively are equipped with the lug that is used for accepting the threaded connection spare, the interval is equipped with radially inwards protruding and along two protruding bars that extend of the circumference of interior ring face on the interior ring face of clamp body, is equipped with the sealing washer groove that is located between the protruding bars on this interior ring face; the two clamp bodies may be joined together end to end by bolts passing through the lugs; the two clamp bodies can enclose a central space for receiving a pipeline after being connected end to end, and a sealing ring arranged in a sealing ring groove is arranged in the central space; the method is characterized in that:
The distance between the bottom of the sealing ring groove and the inner annular surface of the convex rib is the groove depth; the groove depth is maximum in the middle of the clamp body and minimum in the end of the clamp body;
The sealing ring comprises a rubber ring body, two ends of the rubber ring body are respectively provided with an end wall which is connected with the rubber ring body into a whole, the center part of the end wall is provided with an axial through hole, the inner edge of the end wall is axially inwards protruded to form an annular lip, an annular connecting body is inserted between the rubber ring body and the annular lip, the annular connecting body is arranged in a hollow mode to form an annular cavity, an opening communicated with the annular cavity is formed in the outer annular surface of the annular connecting body along the circumferential direction of the outer annular surface, and the sealing ring further comprises a retaining ring which is connected to the inner annular surface of the annular connecting body;
The inner ring surface of the retainer ring is provided with a plurality of liquid passing holes in a ring mode, the liquid passing holes are communicated with the ring cavity, and liquid can enter between the ring lip and the rubber ring body from the liquid passing holes.
2. The pipe quick connect clamp of claim 1, wherein: the groove depth gradually decreases from the middle part of the clamp body to the two end parts.
3. The pipe quick connect clamp of claim 1, wherein: the sealing ring groove is arranged concentrically with the inner ring surface of the convex rib.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811535127.8A CN109340484B (en) | 2018-12-14 | 2018-12-14 | Quick connecting clamp for pipeline |
| PCT/CN2019/124154 WO2020119655A1 (en) | 2018-12-14 | 2019-12-10 | Pipeline quick-connection hoop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811535127.8A CN109340484B (en) | 2018-12-14 | 2018-12-14 | Quick connecting clamp for pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109340484A CN109340484A (en) | 2019-02-15 |
| CN109340484B true CN109340484B (en) | 2024-05-10 |
Family
ID=65304317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811535127.8A Active CN109340484B (en) | 2018-12-14 | 2018-12-14 | Quick connecting clamp for pipeline |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109340484B (en) |
| WO (1) | WO2020119655A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340484B (en) * | 2018-12-14 | 2024-05-10 | 山东莱德管阀有限公司 | Quick connecting clamp for pipeline |
| CN111188955B (en) * | 2020-02-27 | 2021-08-03 | 玫德集团有限公司 | Pipe clamp capable of realizing quick connection and pipe clamp assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201858461U (en) * | 2010-09-17 | 2011-06-08 | 浙江海亮股份有限公司 | Quick pipe joint |
| CN205118237U (en) * | 2015-11-13 | 2016-03-30 | 山东莱德机械有限公司 | Antiseized even rubber ring of ditch slot type coupling |
| CN205639949U (en) * | 2016-05-09 | 2016-10-12 | 开封市翰园石油科技有限公司 | Clamp connection piece |
| CN206572087U (en) * | 2017-01-09 | 2017-10-20 | 潍坊和特管业发展有限公司 | A kind of concave-concave head and tip pipe clamp |
| CN209262459U (en) * | 2018-12-14 | 2019-08-16 | 山东莱德管阀有限公司 | A kind of pipeline connects clip fastly |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7712796B2 (en) * | 2004-05-14 | 2010-05-11 | Victaulic Company | Deformable mechanical pipe coupling |
| US9395024B2 (en) * | 2011-11-21 | 2016-07-19 | Victaulic Company | Coupling having gasket pocket of varying depth |
| US9182058B2 (en) * | 2012-02-08 | 2015-11-10 | Victaulic Company | Fitting having receptacle of varying depth |
| US9435469B2 (en) * | 2012-09-11 | 2016-09-06 | Victaulic Company | Coupling with notched projections having gasket pocket of varying depth |
| KR101732065B1 (en) * | 2016-05-11 | 2017-05-11 | 주식회사 하이스텐 | Packing member for sealing pipe |
| WO2018105798A1 (en) * | 2016-12-09 | 2018-06-14 | 주식회사 원대티지케이 | Gasket comprising movable stopper |
| CN109340484B (en) * | 2018-12-14 | 2024-05-10 | 山东莱德管阀有限公司 | Quick connecting clamp for pipeline |
| CN109442108B (en) * | 2018-12-14 | 2024-05-03 | 山东莱德机械有限公司 | Quick-connection clamp |
-
2018
- 2018-12-14 CN CN201811535127.8A patent/CN109340484B/en active Active
-
2019
- 2019-12-10 WO PCT/CN2019/124154 patent/WO2020119655A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201858461U (en) * | 2010-09-17 | 2011-06-08 | 浙江海亮股份有限公司 | Quick pipe joint |
| CN205118237U (en) * | 2015-11-13 | 2016-03-30 | 山东莱德机械有限公司 | Antiseized even rubber ring of ditch slot type coupling |
| CN205639949U (en) * | 2016-05-09 | 2016-10-12 | 开封市翰园石油科技有限公司 | Clamp connection piece |
| CN206572087U (en) * | 2017-01-09 | 2017-10-20 | 潍坊和特管业发展有限公司 | A kind of concave-concave head and tip pipe clamp |
| CN209262459U (en) * | 2018-12-14 | 2019-08-16 | 山东莱德管阀有限公司 | A kind of pipeline connects clip fastly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109340484A (en) | 2019-02-15 |
| WO2020119655A1 (en) | 2020-06-18 |
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