CN104976461B - A kind of water pipe rotates expansion joint component - Google Patents

A kind of water pipe rotates expansion joint component Download PDF

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Publication number
CN104976461B
CN104976461B CN201510377157.0A CN201510377157A CN104976461B CN 104976461 B CN104976461 B CN 104976461B CN 201510377157 A CN201510377157 A CN 201510377157A CN 104976461 B CN104976461 B CN 104976461B
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casing
water pipe
rotation connection
sealing ring
ring
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CN201510377157.0A
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CN104976461A (en
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胡立功
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胡立功
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Priority to CN201510377157.0A priority Critical patent/CN104976461B/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
    • F16L27/00Adjustable joints, Joints allowing movement
    • F16L27/12Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
    • F16L27/125Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement having longitudinal and rotary movement

Abstract

The invention discloses a kind of water pipes to rotate expansion joint component, including:Hollow casing, two hollow rotation connection pipes, it is interior respectively to be sleeved on casing, and described sleeve pipe is stretched out in one end, two end covers, it is respectively sleeved on corresponding rotation connection pipe, and it is relatively fixed with the end of casing, U-shaped sealing ring, it is arranged on the end that rotation connection pipe stretches into casing, it seals and coordinates with the madial wall of casing, one end that the present invention is rotatablely connected pipe stretching casing when in use is connected with water pipe connecting portion, two water pipes can be connected by two rotation connection pipes, by setting casing and U-shaped sealing ring that can ensure to seal, using rotation connection pipe can facing sleeve circumferentially rotate or be axially moved, two sections of water pipes of expansion joint component cooperation are rotated with a kind of water pipe can rotate, entire water pipe is not easy to knot, water delivery effect is good, the present invention can be also applied in the pipe-line system that liquid or gas convey.

Description

A kind of water pipe rotates expansion joint component
Technical field
The present invention relates to water pipe fields, and in particular to a kind of water pipe rotates expansion joint component.
Background technology
Water pipe is used in each each side such as production and living, such as irrigates, agriculture, industry, specific such as the tower in construction site It hangs, construction site dust is larger, in order to reduce dust a water pipe would generally be drawn in water pipe side-wall hole and to pacify to tower crane top It fills nozzle and forms spraying system, which can spray downwards small water droplet, can effectively reduce dust, control air matter Amount, reduces environmental pollution.Important component of the water pipe as spraying system, water source is provided for spraying system, is rotated in tower crane During, receive water pipe limitation in itself, tower crane can only rotate 180 ° or so, can not 360 ° of rotations, tower crane work limited System, work efficiency is relatively low, and water pipe is longer, easy tangled up and knotted, architecture susceptible.
Water pipe head is for connection to a kind of component of water pipe, mostly can will connect into one with water pipe according to actual conditions Root long water pipe, but in the prior art cannot relatively rotate after fixed between water pipe head and water pipe, during practice also It is the problem of above-mentioned easy tangled up and knotted can occur.
The content of the invention
The present invention solves prior art water pipe and connects in view of the above-mentioned problems, proposing that a kind of water pipe rotates expansion joint component Head cannot be rotated the problem of the easy tangled up and knotted of water pipe is caused to influence water delivery work.
The technical solution that the present invention takes is as follows:
A kind of water pipe rotates expansion joint component, for connecting two sections of water pipes, comprising rotation connection pipe (1), sealing ring, close Lid, outer tube, casing are blocked, casing is hollow, and the rotation connection pipe is two pieces, and interior to be hollow, an end head respectively sets sealing End cap, the end cover of two pieces rotation connection pipe, which is inwardly corresponded to outside respectively, to be sleeved on outside casing, and U-shaped sealing ring is arranged on rotation connection Pipe stretches into the end of casing and the madial wall sealing of casing coordinates, and the U-shaped sealing ring includes ring body, the ring body Middle part set with undergauge section cooperation mounting hole, lateral wall include sequentially connected first cylindrical sidewall, the second cylindrical sidewall with And tapered sidewalls, the undergauge Duan Shangshe stabilizing rings and back bracket ring, the back bracket ring ring body containing back bracket, the back bracket ring body Excircle on there is the circular orientation portion of a tubular, the first cylindrical sidewall of U-shaped sealing ring is sleeved on outside the circular orientation portion On, and with the annular sidewall against the diameter of second cylindrical sidewall is more than the first cylindrical sidewall, the tapered sidewalls Miner diameter end is connected with the second cylindrical sidewall;Two cylindrical sidewalls are connected with annular sidewall, plane and U where the annular sidewall The axis of type sealing ring is mutually perpendicular to;U-shaped sealing ring has an annular groove, the horizontal stroke of the annular groove close to the end face of tapered sidewalls Section is U-shaped, and the end diameter that the mounting hole closes on the first cylindrical sidewall is more than the end diameter away from the first cylindrical sidewall, The outer end of rotation connection pipe is arranged sealing ring respectively, and the sealing ring is in end cover, the end cover radial outer end It is connected respectively with outer tube.
The one end for being rotatablely connected pipe stretching casing when in use is connected with water pipe, can be connected by two rotation connection pipes Two water pipes, being capable of facing sleeve circumferential direction turn using rotation connection pipe by setting casing and U-shaped sealing ring that can ensure to seal Dynamic or axial movement, two sections of water pipes of expansion joint component cooperation are rotated with a kind of water pipe can rotate, and entire water pipe is not easy to beat Knot, water delivery effect are good.
Further, it is rotatablely connected pipe and stretches out one end of casing for water pipe connecting pin, the neighbouring water pipe of rotation connection pipe There is a secondary segment, the outer profile of the cross section of the secondary segment has at least a pair of line being mutually parallel at connecting pin.
By set secondary segment can, coordinate with the instrument of auxiliary, such as spanner so that a kind of water pipe rotates expansion joint Component can preferably coordinate with water pipe.
Further, the both ends of described sleeve pipe lateral wall have external screw thread, and the end cover includes end cap body, end cap The end face of body and casing cooperation has a circular groove, and the bottom of circular groove has a round hole for running through end cap body; The madial wall of circular groove has the internal thread with external screw thread cooperation, and the round hole is slidably matched with rotation connection pipe, And the side wall of round hole has annular mounting groove, and sealing ring is equipped in annular mounting groove.
Can be preferably fixed with casing by thread fitting end cover, and easy disassembly and maintenance, it is close by setting Seal can prevent the water of leakage from being flowed out by end cover.
Further, one end that the rotation connection pipe stretches into casing has a undergauge section, and the end of the undergauge section has There is a positive stop lug boss spacing ring, the end face on the outside of positive stop lug boss spacing ring has a rounding or chamfering, and the U-shaped sealing ring passes through It is set in after positive stop lug boss spacing ring in the undergauge section.
The U-shaped sealing ring that limiting stand spacing ring can prevent from being set on annular groove departs from, the design of rounding or chamfering It is for guiding role, U-shaped sealing ring is facilitated to depart from through limiting stand spacing ring.
The bigger diameter end of tapered sidewalls and the madial wall of casing are adjacent to, and the design of annular groove can improve the bullet of tapered sidewalls Property, guarantee has preferable sealing effect and service life.
Stabilizing ring improves service life, and can slow down rocking for rotation connection pipe for increasing wearability.If no Stabilizing ring, rotation connection pipe one end coordinate with end cap, and the other end is coordinated by U-shaped sealing ring and internal surface of sleeve pipe, because U-shaped sealing It encloses as flexibility, rotation connection Guan Yi shakes, and rocks and may result in leakage.Stabilizing ring uses existing wear-resistant material system Into can be metal or nonmetallic materials.
The effect of back bracket ring is for coordinating with U-shaped sealing ring, ensureing that U-shaped sealing ring has preferable stressing conditions, such as Fruit does not have back bracket ring, is mutually rotated between stabilizing ring and U-shaped sealing ring, the end face of U-shaped sealing ring easy to wear, is rotated in pull During connecting tube, the U-shaped easy flange of sealing ring, which influences sealing effect, cannot even use.
It is sleeved on outside circular orientation portion in the first cylindrical sidewall of U-shaped sealing ring and with the annular sidewall against such Design has larger cooperation area, and U-shaped sealing ring can be made preferably to be arranged on annular groove.
Further, outer tube is further included, is sleeved on outside the outer tube on casing and both ends is respectively at corresponding sealed end Lid is against forming a toroidal cavity between the lateral wall of casing and the madial wall of outer tube;
Also there are several deflector holes, described deflector hole one end is connected with the inside of inner sleeve, another on the end cover End and the toroidal cavity unicom.
By set outer tube can protection sleeve pipe, and can also play the role of decoration, by setting deflector hole can be Leakage is that current are flowed out from deflector hole, can protect end cover.
Further, there is a circular orientation recess, the housing on the excircle of the opposite side wall of two end covers The end of pipe is positioned with the circular orientation mating recesses.
By setting circular orientation recess that can facilitate positioning, and it can ensure that the axis of outer tube and casing coincides.
Further, for the ease of rotatory sealing end cap and casing, the lateral wall of end cover is at least a pair of mutual Parallel face.
The invention also discloses a kind of water pipe, the water pipe includes at least two pipeline section, by connecing between two neighboring pipeline section Head connection.The connector rotates expansion joint component for a kind of above-mentioned water pipe.
Further, the madial wall of the pipeline section has connection internal thread, and a kind of water pipe rotates expansion joint component The lateral wall of rotation connection pipe there is connection external screw thread with being connected screw-internal thread fit.
The rotation connection pipe of the application is integrally formed, and can directly process to obtain by lathe.
Although the application is nominally water pipe, the liquid of conveying is not limited only to and water, can also be other liquid, such as wine Essence, lubricating oil or hydraulic oil etc..
The beneficial effects of the invention are as follows:The one end for being rotatablely connected pipe stretching casing when in use is connected with water pipe, passes through two Root rotation connection pipe can connect two water pipes, by setting casing and U-shaped sealing ring that can ensure to seal, use rotation connection Pipe can facing sleeve circumferentially rotate or be axially moved, two sections of equal energy of water pipe of expansion joint component cooperation are rotated with a kind of water pipe It rotates, entire water pipe is not easy to knot, and water delivery effect is good;By setting stabilizing ring, back bracket ring that can effectively add on annular groove The service life and sealing effect of strong U-shaped sealing ring.
Description of the drawings:
Fig. 1 is the structure diagram that a kind of water pipe of the present invention rotates expansion joint component;
Fig. 2 is the sectional view of stabilizing ring;
Fig. 3 is the sectional view of back bracket ring;
Fig. 4 is the partial sectional view of U-shaped sealing ring;
Fig. 5 is the partial sectional view of end cover;
Fig. 6 is the front view for being rotatablely connected pipe;
Fig. 7 is the front view of water pipe.
Each reference numeral is in figure:
It is rotatablely connected pipe 1, sealing ring 2, end cover 3, outer tube 4, casing 5, stabilizing ring 6, back bracket ring 7, U-shaped sealing ring 8th, back bracket ring body 9, circular orientation portion 10, annular groove 11, mounting hole 12, the first cylindrical sidewall 13, annular sidewall 14, second Shape side wall 15, tapered sidewalls 16, circular groove 17, round hole 18, annular mounting groove 19, deflector hole 20, secondary segment 21, undergauge section 22nd, positive stop lug boss spacing ring 23, pipeline section 24, rotation expansion joint 25, ring body 26, end cap body 27, circular orientation recess 28th, toroidal cavity 29.
Specific embodiment:
With reference to each attached drawing, the present invention is described in detail.
As shown in Fig. 1~7, a kind of water pipe rotates expansion joint component, for connecting two sections of water pipes, is managed comprising rotation connection 1st, sealing ring 2, end cover 3, outer tube 4, casing 5, casing 5 are hollow, and the rotation connection pipe 1 is two pieces, interior to be hollow, One end head respectively sets end cover 3, and the end cover 3 of two pieces rotation connection pipe 1, which is inwardly corresponded to outside respectively, to be sleeved on outside casing 5, U-shaped Sealing ring 8 is arranged on rotation connection pipe 1 and stretches into the end of casing 5 and the madial wall sealing cooperation of casing 5, the U-shaped sealing ring 8 Including ring body 26, the middle part of the ring body 26 sets the mounting hole 12 coordinated with undergauge section 22, lateral wall including successively The first cylindrical sidewall 13, the second cylindrical sidewall 15 and the tapered sidewalls 16 of connection set stabilizing ring 6 and the back of the body in the undergauge section 22 Filler ring 7,7 ring body containing back bracket of back bracket ring 9 have the circular orientation of a tubular on the excircle of the back bracket ring body 9 Portion 10, the circular orientation portion 10 is sleeved in the first cylindrical sidewall 13 of U-shaped sealing ring 8 outside, and is supported with the annular sidewall 14 It leans on, the diameter of second cylindrical sidewall 15 is more than the first cylindrical sidewall 13, the miner diameter end of the tapered sidewalls 16 and second Shape side wall 15 connects;Two cylindrical sidewalls are connected with annular sidewall 14, the 14 place plane of annular sidewall and U-shaped sealing ring 8 axis is mutually perpendicular to;U-shaped sealing ring 8 has an annular groove 11, the horizontal stroke of the annular groove 11 close to the end face of tapered sidewalls 16 Section is U-shaped, and the end diameter that the mounting hole 12 closes on the first cylindrical sidewall 13 is more than the end away from the first cylindrical sidewall 13 Portion's diameter, the outer end of rotation connection pipe 1 are arranged sealing ring 2 respectively, and the sealing ring 2 is in end cover 3, the sealed end 3 radial outer end of lid is connected respectively with outer tube 4.
As shown in fig. 6, rotation connection pipe 1 stretches out one end of casing 5 for water pipe connecting pin, rotation connection pipe 1 is adjacent to water pipe There is a secondary segment 21, the outer profile of the cross section of secondary segment 21 has at least a pair of line being mutually parallel, rotates at connecting pin One end that connecting tube 1 stretches into casing 5 has a undergauge section 22, and the end of undergauge section 22 has a positive stop lug boss spacing ring 23, limit There is a rounding or chamfering, U-shaped sealing ring 8 to be arranged after passing through positive stop lug boss spacing ring 23 for the end face in 23 outside of position boss spacing ring In undergauge section 22, by setting secondary segment 21 that can coordinate with the instrument of auxiliary, such as spanner so that a kind of water pipe rotation is stretched Reducer coupling head component can preferably coordinate with water pipe, and positive stop lug boss spacing ring 23 can prevent from being set in U-shaped in undergauge section 22 Sealing ring 8 departs from, and the design of rounding or chamfering is for guiding role, and U-shaped sealing ring 8 is facilitated to depart from through positive stop lug boss /V Ring 23.
As shown in figure 5, the both ends of 5 lateral wall of casing have external screw thread, end cover 3 includes end cap body 27, end cap sheet Body 27 has a circular groove 17 with the end face that casing 5 coordinates, and the bottom of circular groove 17 has one through end cap body 27 Round hole 18, the madial wall of circular groove 17 have the internal thread with external screw thread cooperation, and round hole 18 is slided with rotation connection pipe 1 Cooperation, and the side wall of round hole has annular mounting groove 19,19 are equipped with sealing ring 2 in the annular mounting groove, pass through screw thread Fitted seal end cap 3 can be preferably fixed with casing 5, and easy disassembly and maintenance, by setting sealing ring 2 being capable of anti-stopping leak The water of dew is flowed out by end cover 3.
As shown in figure 4, U-shaped sealing ring 8 includes ring body 26, the middle part of ring body has one and the cooperation of undergauge section Mounting hole 12, the lateral wall of ring body include sequentially connected first cylindrical sidewall 13, the second cylindrical sidewall 15 and taper Side wall 16, the diameter of the second cylindrical sidewall 15 are more than the first cylindrical sidewall 13, the miner diameter end of tapered sidewalls 16 and the second tubular side Wall 15 connects;Two cylindrical sidewalls are connected by an annular sidewall 14,14 place plane of annular sidewall and the axis of U-shaped sealing ring 8 Line is mutually perpendicular to;The end face that U-shaped sealing ring 8 closes on tapered sidewalls 16 has an annular groove 11, the cross section of the annular groove 11 For U-shaped or V-arrangement, the end diameter that mounting hole closes on the first cylindrical sidewall 13 is straight more than the end away from the first cylindrical sidewall 13 Footpath, the madial wall of the bigger diameter end and casing 5 of tapered sidewalls 16 are adjacent to, and the design of annular groove 11 can improve the bullet of tapered sidewalls 16 Property, there are preferable sealing effect and service life.
As shown in Figure 1,2 and 3, a kind of water pipe rotate expansion joint component further include be sequentially sleeved at it is steady in undergauge section 22 Determine ring 6 and back bracket ring 7, back bracket ring 7 includes a back bracket ring body 9, the annular on the excircle of 7 body of back bracket ring with a tubular Positioning region 10, be sleeved in the first cylindrical sidewall 13 of U-shaped sealing ring 8 outside circular orientation portion and with annular sidewall 14 against.
The stabilizing ring 6 can slow down rocking for rotation connection pipe 1 for increasing wearability, raising service life, such as Fruit does not have stabilizing ring 6, and rotation connection 1 one end of pipe coordinates with end cap, and the other end is coordinated by U-shaped sealing ring 8 and internal surface of sleeve pipe, because It is flexible for U-shaped sealing ring 8, rotation connection pipe 1 easily shakes, and rocks and may result in leakage, and stabilizing ring 6 is using existing Wear-resistant material be made.
The effect of the back bracket ring 7 is for coordinating with U-shaped sealing ring 8, ensureing that U-shaped sealing ring 8 has preferable stress If situation without back bracket ring 7, mutually rotates between stabilizing ring 7 and U-shaped sealing ring 8, the end of U-shaped sealing ring 8 easy to wear Face, when pull is rotatablely connected pipe, U-shaped 8 easy flange of sealing ring, which influences sealing effect, cannot even use.
Be sleeved in the first cylindrical sidewall 13 of U-shaped sealing ring 8 outside the circular orientation portion 10 and with annular sidewall 14 against, Such design has larger cooperation area, and U-shaped sealing ring 8 can be made preferably to be arranged on 22 slot of undergauge section.
As described in figures 1 and 5, a kind of water pipe rotates expansion joint component and further includes outer tube 4, and casing 5 is sleeved on outside outer tube 4 On, and both ends between the lateral wall of casing 5 and the madial wall of outer tube 4 respectively with corresponding end cover 3 against forming a ring Shape cavity 29.
Also there are several deflector holes 20,20 one end of deflector hole is connected with the inside of casing 5, another on the end cover 3 End and 29 unicom of toroidal cavity.
On the excircle of the opposite side wall of the end cover 3 have a circular orientation recess 28, the end of outer tube 4 with The cooperation positioning of circular orientation recess 28.
The setting of the outer tube 4, beneficial to can protection sleeve pipe 5, and can also play the role of decoration, deflector hole 20 is set It can be that current are flowed out from deflector hole 20 in leakage, end cover 3 can be protected.
It being rotated for ease of end cover 3 and casing 5, the lateral wall of end cover 3 has at least a pair of face being mutually parallel, And two faces being mutually parallel are compared with the axisymmetrical of end cover 3.
By setting circular orientation recess 28 that can facilitate positioning, and it can ensure that outer tube 4 is mutually overlapped with the axis of casing 5 It closes.
Rotation connection 1 monoblock type of pipe.
Although the application, nominally for water pipe, the liquid of conveying is not limited only to and water, comprising other liquid, as alcohol, Lubricating oil or hydraulic oil etc..
During practice, undergauge section 22 can set 2 on demand, and the diameter of two undergauge sections 22 is slightly different, wherein, it is separate The undergauge section 22 of positive stop lug boss spacing ring 23 is relatively large in diameter, and it is smaller to close on 22 diameter of undergauge section of positive stop lug boss spacing ring 23, surely Determine ring 6 and positive stop lug boss spacing ring 23 with the undergauge section 22 being relatively large in diameter to coordinate, back bracket ring 7 and U-shaped sealing ring 8 and diameter are smaller Undergauge section 22 coordinate.
Embodiment 1 in use, one end that rotation connection pipe 1 stretches out casing 5 is connected with water pipe, passes through two rotation connections Pipe 1 can connect two water pipes, can using rotation connection pipe 1 by setting casing 5 and U-shaped sealing ring 8 that can ensure to seal Facing sleeve 5 is circumferentially rotated or is axially moved, and two sections of water pipes of expansion joint component cooperation are rotated with a kind of water pipe and can be rotated, Entire water pipe is not easy to knot, and water delivery effect is good.
As shown in fig. 7, the invention also discloses a kind of water pipe, water pipe includes at least two pipeline section 24, two neighboring pipeline section it Between connected by connector, connector rotates expansion joint component 25 for a kind of water pipe of embodiment 1, and the madial wall of pipeline section has connection Internal thread, a kind of lateral wall of the rotation connection pipe 1 of water pipe rotation expansion joint component have the company with being connected screw-internal thread fit Connect external screw thread.
The foregoing is merely the preferred embodiment of the present invention, not thereby limit the scope of patent protection of the present invention, all It is the equivalent structure transformation made with description of the invention and accompanying drawing content, is directly or indirectly used in other relevant technologies Field similarly includes within the scope of the present invention.

Claims (7)

1. a kind of water pipe rotates expansion joint component, for connecting two sections of water pipes, it is characterised in that:Comprising rotation connection pipe (1), Sealing ring (2), end cover (3), outer tube (4), casing (5), casing (5) are hollow, and the rotation connection pipe (1) is two Part, it is interior respectively set end cover (3) for a hollow, end head, inwardly corresponding point of the end cover (3) of two pieces rotation connection pipe (1) It is outer to be sleeved on casing (5) outside, U-shaped sealing ring (8) be arranged on rotation connection pipe (1) stretch into casing (5) end and with casing (5) Madial wall sealing cooperation, the rotation connection pipe (1) stretches into one end of casing (5) and sets undergauge section (22),
The U-shaped sealing ring (8) includes ring body (26), sets in the middle part of the ring body (26) and coordinates with undergauge section (22) Mounting hole (12), lateral wall include sequentially connected first cylindrical sidewall (13), the second cylindrical sidewall (15) and tapered side Wall (16), two cylindrical sidewalls are connected with annular sidewall (14), and stabilizing ring (6) and back bracket ring (7) are set on the undergauge section (22), Back bracket ring (7) ring body containing back bracket (9) has the circular orientation of a tubular on the excircle of the back bracket ring body (9) Portion (10) is sleeved in the first cylindrical sidewall (13) of U-shaped sealing ring (8) outside the circular orientation portion (10), and with the annular Side wall (14) is against the diameter of second cylindrical sidewall (15) is more than the first cylindrical sidewall (13), the tapered sidewalls (16) Miner diameter end be connected with the second cylindrical sidewall (15);Plane and the axis phase of U-shaped sealing ring (8) where the annular sidewall (14) It is mutually vertical;U-shaped sealing ring (8) has an annular groove (11), the horizontal stroke of the annular groove (11) close to the end face of tapered sidewalls (16) Section is U-shaped, and the end diameter that the mounting hole (12) closes on the first cylindrical sidewall (13) is more than away from the first cylindrical sidewall (13) end diameter, the outer end of rotation connection pipe (1) are arranged sealing ring (2) respectively, and the sealing ring (2) is mounted in end cover (3) in, end cover (3) radial outer end is connected respectively with outer tube (4).
2. a kind of water pipe as described in claim 1 rotates expansion joint component, it is characterised in that:Rotation connection pipe (1) stretches out One end of casing (5) is water pipe connecting pin, and rotation connection pipe (1) has a secondary segment at neighbouring water pipe connecting pin, secondary segment The outer profile of cross section has at least a pair of line being mutually parallel.
3. a kind of water pipe as described in claim 1 rotates expansion joint component, it is characterised in that:The outside of described sleeve pipe (5) The both ends of wall have external screw thread, and the end cover (3) includes end cap body (27), the end cap body (27) and casing (5) The end face of cooperation sets circular groove (17), and the bottom of the circular groove (17) sets the round hole through end cap body (27) (18), madial wall sets the internal thread of same external screw thread cooperation, and the round hole (18) is slidably matched with rotation connection pipe (1), side wall If annular mounting groove (19), sealing ring (2) is installed in the annular mounting groove (19).
4. a kind of water pipe as described in claim 1 rotates expansion joint component, it is characterised in that:The end of the undergauge section (22) Portion sets a positive stop lug boss spacing ring (23), and the end face on the outside of the positive stop lug boss spacing ring (23) has a rounding or chamfering, U-shaped Sealing ring (8) is set in after passing through positive stop lug boss spacing ring (23) on the undergauge section (22).
5. a kind of water pipe as described in claim 1 rotates expansion joint component, it is characterised in that:Outer tube (4) suit On casing (5), and both ends are respectively with corresponding end cover (3) against the interior of lateral wall and the outer tube (4) of, casing (5) A toroidal cavity (29) is formed between side wall, also there is several deflector holes (20), the deflector hole on the end cover (3) (20) one end is connected with the inside of casing (5), the other end and the toroidal cavity (29) unicom.
6. a kind of water pipe as claimed in claim 3 rotates expansion joint component, it is characterised in that:End cover (3) phase To setting a circular orientation recess (28), end and the circular orientation recess of the outer tube (4) on the excircle of side wall (28) cooperation positioning.
7. a kind of water pipe, it is characterised in that:The water pipe includes at least two pipeline sections, is connected between two neighboring pipeline section by connector It connects, the connector rotates expansion joint component for a kind of water pipe described in claim 1~6 any one claim.
CN201510377157.0A 2015-06-30 2015-06-30 A kind of water pipe rotates expansion joint component Active CN104976461B (en)

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CN112761214A (en) * 2019-11-02 2021-05-07 北京服装学院 Sustainable domestic water circulation system based on green life style

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CN201748097U (en) * 2010-07-29 2011-02-16 江苏贝特管件有限公司 Direct-buried sealing sleeve compensator

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