CN110005894B - External pipe joint and mounting method thereof - Google Patents

External pipe joint and mounting method thereof Download PDF

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Publication number
CN110005894B
CN110005894B CN201910330004.9A CN201910330004A CN110005894B CN 110005894 B CN110005894 B CN 110005894B CN 201910330004 A CN201910330004 A CN 201910330004A CN 110005894 B CN110005894 B CN 110005894B
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China
Prior art keywords
plug
pipe
water pipe
wall
nut
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Application number
CN201910330004.9A
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Chinese (zh)
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CN110005894A (en
Inventor
孙华定
古进广
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Chenxin Valve Co.,Ltd.
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Zhejiang Chenxin Valve Co ltd
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Priority to CN201910330004.9A priority Critical patent/CN110005894B/en
Publication of CN110005894A publication Critical patent/CN110005894A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00Branching pipes; Joining pipes to walls
    • F16L41/04Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00Branching pipes; Joining pipes to walls
    • F16L41/08Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
    • F16L41/14Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe by screwing an intermediate part against the inside or outside of the wall

Abstract

The invention discloses an external pipe joint and an installation method thereof, and the external pipe joint comprises a plug inserted into a water pipe, wherein the plug is made of copper, the plug is provided with a conical insertion part, self-tapping threads are processed outside the insertion part, a pipe part is formed at the right side position of the plug through numerical control processing, the outer diameter of the pipe part is smaller than that of the plug, an external thread part is processed at the outer wall of the pipe part through turning, a nut is assembled through the external thread part, a sealing gasket made of rubber is assembled at the outer wall of the pipe part, an arc-shaped surface is processed at the end of the sealing gasket facing the water pipe, the radian of the arc-shaped surface is 1/4-1/2 pi, the sealing gasket is extruded after the nut spirally moves towards the left side, and the sealing gasket is clamped between the outer wall of the water pipe and the nut; this product can install by oneself to the mounting means is comparatively simple.

Description

External pipe joint and mounting method thereof
Technical Field
The invention relates to an external pipe joint and an installation method thereof.
Background
In the water environment, need arrange external the water pipe, the coupling has been preset on the water pipe of external water pipe, through coupling butt joint water equipment, but we are when using in later stage, need increase the coupling according to the use needs, current mode is the tubular structure of purchasing the multichannel, but the tubular structure of multichannel when the installation, need replace original coupling, after the replacement installation, the fit-up gap is great, the later stage takes place the probability increase that leaks, and the form of replacement coupling, the installation operation is comparatively complicated, need professional plumber to install, the purchase cost of coupling only needs several yuan of money, but plumber's last door cost needs 80~200 yuan, the cost is higher relatively.
Based on the problems, an external pipe joint which can be installed by self and has a simpler installation mode is designed.
Disclosure of Invention
The invention aims to provide an external pipe joint which can be automatically installed and has a simple installation mode.
In order to solve the problems, the invention adopts the following technical scheme:
an external pipe joint comprises a plug inserted into a water pipe, the plug is made of copper and is provided with a conical insertion part, self-tapping threads are machined on the outer part of the insertion part, a pipe part is formed at the right side position of the plug through numerical control machining, the outer diameter of the pipe part is smaller than that of the plug, an external thread part is machined at the outer wall of the pipe part, a nut is assembled through the external thread part, a sealing gasket made of rubber is assembled at the outer wall of the pipe part, an arc-shaped surface is machined at the end, facing the water pipe, of the sealing gasket, the radian of the arc-shaped surface is 1/4-1/2 pi, the sealing gasket is extruded after the nut moves spirally towards the left side, the sealing gasket is clamped between the outer wall of the water pipe and the nut, and the end face, contacting the sealing gasket, of the sealing gasket, is a plane, the right-hand member processing of pipe portion has polygonal atress part, when the installation, exerts the rotation torque through this atress part cooperation spanner insert the annular on the outer conical surface of portion and be provided with the inlet opening more than two, the aperture of inlet opening is 2mm ~4mm, and the inside processing of pipe portion has the internal thread part that is used for connecting water equipment and connects usefulness.
Preferably, the thread pitch of the self-tapping thread is 0.75 mm-1.55 mm.
Preferably, the thread pitch of the external thread part is 0.75 mm-1.45 mm.
Preferably, the thread pitch of the internal thread part is 0.75 mm-1.55 mm.
Preferably, a sealing plug temporarily sealing is threadedly attached through the internal thread portion.
Preferably, more than two counter bores are annularly arranged on the outer wall of the plug, a strip-shaped groove communicated with the counter bores is annularly arranged on the right end face of the plug, locking rods are assembled in the counter bores, springs are assembled at the bottoms of the counter bores, the springs act on the bottoms of the locking rods, the upper ends of the locking rods partially extend to the outsides of the counter bores under the action of the springs, when the locking rods are installed, the locking rods are limited on the inner wall of a water pipe after extending outwards, threaded holes are machined in the outer wall of the locking rods, the threaded holes are opposite to the strip-shaped groove, a limiting rod is assembled through the threaded holes, and the limiting rod extends to the outsides of the strip-shaped groove; above-mentioned structure is mainly for increasing locking effect, when the nut is rotatory to extreme position department, need extrusion seal gasket, when extrusion seal gasket, seal gasket's elastic deformation can cause an outside power for tub portion, the simple locking through self tapping screw thread, there is the danger that breaks away from, therefore, the locking lever has been designed in this product, utilize the locking lever to remove to the outside, make the locking lever locking in the inner wall position department of water pipe, when the nut is rotatory inwards, it is spacing to utilize the locking lever to form, avoid breaking away from of plug and water pipe, increase the reliability of installation.
Preferably, the wire diameter of the spring is 0.25 mm-0.35 mm.
A method for installing an external pipe joint comprises the following steps:
1) firstly, determining the installation position required on a water pipe, and marking the installation position by using a marking pen;
2) aligning the tip of the plug part to the position marked by the marker pen in the step 1), rotating the plug, tapping through the plug part, forming a hole at the outer wall of the water pipe after tapping, extending the plug to the inner side of the water pipe after the plug passes through the hole, and screwing the tip of the plug into the inner wall of the water pipe at the moment;
3) sleeving a sealing gasket on the pipe part, wherein the arc-shaped surface of the sealing gasket corresponds to the water pipe;
4) with the cooperation between nut and the pipe portion, through the rotation of nut, promote seal gasket towards the water pipe direction, promote the in-process, need hold seal gasket with the hand, avoid seal gasket's rotation, through the promotion of nut for seal gasket contact water pipe, and the outer wall of arcwall face laminating water pipe, nut extrusion seal gasket, seal gasket elastic deformation back forms sealedly between water pipe and pipe portion.
If the water supply pressure of the water pipe is large, the contact position of the sealing gasket and the water pipe needs to be coated with glass cement to help sealing, so that the probability of water leakage in the later period is reduced.
The invention has the beneficial effects that: this product easily installs, during the installation, the equipment that need not to use the specialty trompil on the water pipe, only need directly with inserting portion screw in water pipe can, the destruction that causes the water pipe when also having avoided the user equipment trompil simultaneously, also avoided purchasing the cost of trompil equipment separately, rethread nut cooperation seal gasket realizes sealedly, above-mentioned installation is accomplished the back, can through tub portion butt joint water equipment, when the installation, need not to close the water valve, whole installation time only needs 2~5 minutes, this product adopts copper, avoid taking place the corrosion, use the durability preferred, and later stage detachable recycles, the structure of this product is comparatively simple, the cost is comparatively cheap, and is suitable for being generalized to use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic view of the installation of the present invention;
FIG. 4 is a right side view of the tube portion;
FIG. 5 is a front view of the present invention in a state where the lock lever is mounted;
FIG. 6 is a top view of the present invention in a state where the lock lever is installed;
FIG. 7 is a right side view of the present invention in a state where the lock lever is mounted;
FIG. 8 is a partial sectional view at B;
fig. 9 is an installation view of the present invention in a state where the lock lever is installed.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
Referring to fig. 1, 2, 3 and 4, an external pipe joint includes a plug 1 inserted into a water pipe a, the plug 1 is made of copper, the plug 1 has a conical insertion portion 2, a self-tapping thread 201 is processed outside the insertion portion 2, a pipe portion 3 is formed at a right side position of the plug 1 by numerical control processing, an outer diameter of the pipe portion 3 is smaller than that of the plug 1, an external thread portion 301 is turned at an outer wall of the pipe portion 3, a nut 4 is assembled through the external thread portion 301, a sealing gasket 5 made of rubber is assembled at the outer wall of the pipe portion 3, an arc-shaped surface 501 is processed at an end of the sealing gasket 5 facing the water pipe a, an arc degree of the arc-shaped surface is 1/4 pi, the sealing gasket 5 is pressed by the nut 4 after the nut 4 is screwed to a left side, the sealing gasket 5 is clamped between the outer wall of the water pipe a and the nut 4, the end face of the sealing gasket 5 contacting the nut 4 is a plane, a hexagonal force-bearing part 333 is processed at the right end of the pipe part 3, when the sealing gasket is mounted, the force-bearing part 333 is matched with a wrench to apply rotation torque, 4 water inlet holes 222 are annularly arranged on the outer conical surface of the insertion part 2, the aperture of each water inlet hole 222 is 2mm, and an internal thread part 334 for connecting a water-using equipment connector is processed inside the pipe part 3.
Example 2
The pitch of the self-tapping thread 201 is 0.75 mm.
Example 3
The thread pitch of the male screw portion 301 is 0.75 mm.
Example 4
The pitch of the internal thread portion 334 is 0.75 mm.
Example 5
The internal thread part 334 is in threaded connection with a sealing plug 335 for temporary sealing, so that the pipe part needs to be temporarily sealed by the sealing plug 335 under the condition that the valve is not closed for installation, and then the pipe part is installed, so that the loss of water quantity is reduced.
Example 6
Referring to fig. 5, 6, 7, 8 and 9, two counter bores 121 are annularly arranged on the outer wall of the plug 1, a strip-shaped groove 131 communicated with the counter bores 121 is annularly arranged on the right end face of the plug 1, a lock rod 141 is assembled in the counter bores 121, a spring 151 is assembled at the bottom of the counter bores 121, the spring 151 acts on the bottom of the lock rod 141, the upper end of the lock rod 141 partially extends to the outside of the counter bores 121 under the action of the spring 151, when the plug is installed, the lock rod 141 extends outwards and is limited on the inner wall of the water pipe a, a threaded hole 161 is processed on the outer wall of the lock rod 141, the threaded hole 161 is opposite to the strip-shaped groove 131, a limit rod 171 is assembled through the threaded hole 161, and the limit rod 171 extends to the outside of the strip-shaped groove 131; above-mentioned structure is mainly for increasing locking effect, when the nut is rotatory to extreme position department, need extrusion seal gasket, when extrusion seal gasket, seal gasket's elastic deformation can cause an outside power for tub portion, the simple locking through self tapping screw thread, there is the danger that breaks away from, therefore, the locking lever has been designed in this product, utilize the locking lever to remove to the outside, make the locking lever locking in the inner wall position department of water pipe, when the nut is rotatory inwards, it is spacing to utilize the locking lever to form, avoid breaking away from of plug and water pipe, increase the reliability of installation.
Example 7
The wire diameter of the spring 151 is 0.25 mm.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. An external pipe joint, its characterized in that: the plug comprises a plug inserted into a water pipe, wherein the plug is provided with a conical insertion part, self-tapping threads are machined on the outer part of the insertion part, a pipe part is formed at the right side position of the plug through numerical control machining, the outer diameter of the pipe part is smaller than that of the plug, an external thread part is machined on the outer wall of the pipe part, a nut is assembled through the external thread part, a sealing gasket made of a rubber material is assembled on the outer wall of the pipe part, an arc-shaped surface is machined at the end, facing the water pipe, of the sealing gasket, the sealing gasket is extruded after the nut is spirally moved towards the left side, the sealing gasket is clamped between the outer wall of the water pipe and the nut, a polygonal stressed part is machined at the right end of the pipe part, when the sealing gasket is installed, the stressed part is matched with a spanner to apply rotating torque, and more than two water inlet holes are annularly arranged on the outer conical surface of the insertion part, the inner part of the pipe part is provided with an internal thread part for connecting a joint of water equipment; the outer wall department of plug annular is provided with the counter bore more than two right-hand member face department of plug annular be provided with the communicating bar groove of counter bore the counter bore is equipped with the locking lever the hole bottom position department of counter bore is equipped with the spring, the spring action is in the bottom of locking lever under the effect of spring, the upper end of locking lever is local to be extended to the outside of counter bore, when the installation, the locking lever is spacing in the inner wall department of water pipe after outwards extending, the outer wall department processing of locking lever has a screw hole, the screw hole with the bar groove is relative, through the screw hole is equipped with a gag lever post, the gag lever post extends to the outside in bar groove.
2. The male coupling of claim 1, wherein: the thread pitch of the self-tapping thread is 0.75 mm-1.55 mm.
3. The male coupling of claim 1, wherein: the thread pitch of the external thread part is 0.75 mm-1.45 mm.
4. The male coupling of claim 1, wherein: the thread pitch of the internal thread part is 0.75 mm-1.55 mm.
5. The male coupling of claim 1, wherein: a sealing plug temporarily sealing is screwed through the internal thread portion.
6. The male coupling of claim 1, wherein: the wire diameter of the spring is 0.25 mm-0.35 mm.
7. A method for mounting a male pipe joint according to any one of claims 1 to 6, wherein: the method comprises the following steps:
firstly, determining the installation position required on a water pipe, and marking the installation position by using a marking pen;
aligning the tip of the plug part to the position marked by the marker pen, rotating the plug, tapping through the plug part, forming a hole at the outer wall of the water pipe after tapping, extending the plug to the inner side of the water pipe after the plug passes through the hole, and screwing the tip of the plug into the inner wall of the water pipe;
sleeving a sealing gasket on the pipe part, wherein the arc-shaped surface of the sealing gasket corresponds to the water pipe;
with the cooperation between nut and the pipe portion, through the rotation of nut, promote seal gasket towards the water pipe direction, promote the in-process, need hold seal gasket with the hand, avoid seal gasket's rotation, through the promotion of nut for seal gasket contact water pipe, and the outer wall of arcwall face laminating water pipe, nut extrusion seal gasket, seal gasket elastic deformation back forms sealedly between water pipe and pipe portion.
CN201910330004.9A 2019-04-23 2019-04-23 External pipe joint and mounting method thereof Active CN110005894B (en)

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Application Number Priority Date Filing Date Title
CN201910330004.9A CN110005894B (en) 2019-04-23 2019-04-23 External pipe joint and mounting method thereof

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CN110005894B true CN110005894B (en) 2021-11-05

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111895203B (en) * 2020-08-13 2021-11-26 凤阳县天龙水利建筑工程有限公司 Pipeline external connection device for building and external connection method

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2827913A (en) * 1955-07-28 1958-03-25 Wagner William Self-tapping valve for tubes, pipes, tanks and other conduits and containers
US3509905A (en) * 1967-11-15 1970-05-05 John W Mullins Line clamping self-tapping service valve
US3554217A (en) * 1969-04-21 1971-01-12 Sealed Unit Parts Co Inc Self-tapping valve
US3661169A (en) * 1970-04-13 1972-05-09 John W Mullins Line clamping self-tapping service valve
US3995655A (en) * 1975-10-07 1976-12-07 Mueller Co. Apparatus for and method of making a service line connection through a fitting
US6357472B1 (en) * 1999-11-05 2002-03-19 Tom King Harmony Products, Inc. Self-tapping tee
CN1478186A (en) * 2000-11-29 2004-02-25 乌波诺尔创新股份公司 Tapping fitting
CN201757241U (en) * 2010-07-05 2011-03-09 天津建岩岩土工程有限公司 Operating tool under pressure for pipeline communication
CN104405991A (en) * 2014-10-20 2015-03-11 邢梓杉 Saddle-shaped punching device for plastic conveying pipeline and punching method thereof
CN205278643U (en) * 2015-11-18 2016-06-01 郑州海世鸿阀门有限公司 Soft seal gate valve
CN106180806A (en) * 2016-09-08 2016-12-07 中铁十九局集团第七工程有限公司 Pipeline tapping equipment and pipeline tapping method

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2827913A (en) * 1955-07-28 1958-03-25 Wagner William Self-tapping valve for tubes, pipes, tanks and other conduits and containers
US3509905A (en) * 1967-11-15 1970-05-05 John W Mullins Line clamping self-tapping service valve
US3554217A (en) * 1969-04-21 1971-01-12 Sealed Unit Parts Co Inc Self-tapping valve
US3661169A (en) * 1970-04-13 1972-05-09 John W Mullins Line clamping self-tapping service valve
US3995655A (en) * 1975-10-07 1976-12-07 Mueller Co. Apparatus for and method of making a service line connection through a fitting
US6357472B1 (en) * 1999-11-05 2002-03-19 Tom King Harmony Products, Inc. Self-tapping tee
CN1478186A (en) * 2000-11-29 2004-02-25 乌波诺尔创新股份公司 Tapping fitting
CN201757241U (en) * 2010-07-05 2011-03-09 天津建岩岩土工程有限公司 Operating tool under pressure for pipeline communication
CN104405991A (en) * 2014-10-20 2015-03-11 邢梓杉 Saddle-shaped punching device for plastic conveying pipeline and punching method thereof
CN205278643U (en) * 2015-11-18 2016-06-01 郑州海世鸿阀门有限公司 Soft seal gate valve
CN106180806A (en) * 2016-09-08 2016-12-07 中铁十九局集团第七工程有限公司 Pipeline tapping equipment and pipeline tapping method

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Effective date of registration: 20211015

Address after: 312000 No. 18, Jiangren Road, Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province

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Address before: 321206 Wuyi Runze environmental protection equipment factory, No. 46, Xizheng Qingchun street, Nancang village, Jiaodao Town, Wuyi County, Jinhua City, Zhejiang Province

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