CN112161126A

CN112161126A - Locking type pipeline connector

Info

Publication number: CN112161126A
Application number: CN202011041518.1A
Authority: CN
Inventors: 龙宏元
Original assignee: Huaihua Wopu Environmental Protection Technology Co ltd
Current assignee: Huaihua Wopu Environmental Protection Technology Co ltd
Priority date: 2020-01-13
Filing date: 2020-09-28
Publication date: 2021-01-01
Also published as: CN115789361A; CN114909531A

Abstract

The invention discloses a locking type pipeline interface, and provides a tensile pipeline connecting method. The pipeline joint comprises a pipeline joint or a joint, a pipeline, a sealing ring and a locking mechanism which are directly connected, wherein the sealing ring and the locking mechanism are used as a locking connecting mechanism, the sealing ring seals the pipeline joint or the joint inner wall and the pipeline outer wall joint, and the locking mechanism locks the pipeline joint or the joint and the pipeline mutually to limit the pipeline and the joint to slide relatively. When the pipelines are connected, fixed connection modes such as welding or cementing are not needed, and the pipeline interface has shock resistance and tensile resistance. The problem of traditional pipe connection mode easily become flexible etc is solved.

Description

Locking type pipeline connector

Technical Field

The invention relates to a pipeline interface, in particular to a locking type pipeline interface which is provided with a locking mechanism or structure at the pipeline interface to replace the traditional fixed connection installation method.

Background

For many years, the traditional pipeline is installed by fixedly connecting the pipelines in a screw mode, a hot-melt welding mode, a glue dissolving and bonding mode and the like, but the traditional connecting mode obviously has many defects or shortcomings: 1. when the pipelines are installed and connected, the tapping, hot melting or gluing work is time-consuming and labor-consuming; 2. the quality is difficult to control, and the problem of water leakage is easy to occur; 3. the maintenance and the replacement of the pipeline or the interface are extremely inconvenient; 4. the traditional fixed connection mode is extremely poor in anti-seismic and anti-tensile properties, daily thermal expansion, cold shrinkage and vibration can enable the interface to be loose, and particularly in an earthquake-prone area, the interface of the fixed connection mode is very easy to be stretched and loosened during vibration.

Disclosure of Invention

In order to solve the problem that the traditional pipeline connection mode is difficult to loosen, the invention provides a tensile-resistant pipeline connection method.

The invention provides a locking type pipeline interface, which particularly comprises a pipeline interface or a joint, a pipeline, a sealing ring and a locking mechanism which are directly connected, wherein the sealing ring and the locking mechanism are used as a combined sealing locking device for locking the connecting mechanism, the sealing ring seals the pipeline interface or the inner wall of the joint with the interface of the outer wall of the pipeline, and the locking mechanism locks the pipeline interface or the joint with the pipeline mutually to limit the pipeline and the interface to slide relatively. When the pipeline is connected, fixed connection modes such as welding or gluing are not needed, the inner wall and the outer wall of the pipeline connector can slide in a small range, and the pipeline connector has anti-seismic and anti-tensile properties.

The locking type pipeline interface is characterized in that a locking mechanism and more than one sealing device are arranged between an inner pipeline and an outer pipeline which are overlapped at the pipeline interface to serve as a locking sealing connecting mechanism, the sealing device is arranged in the pipeline interface to seal a gap between the outer wall of the inner pipeline and the inner wall of the outer pipeline, and the locking mechanism is arranged at the pipeline interface to limit the inner pipeline and the outer pipeline to slide relatively.

The locking type pipeline connector is characterized in that a sealing concave ring matched with a sealing ring is arranged on the outer wall of an inner pipeline or the inner wall of an outer pipeline, and the sealing ring is arranged in the sealing concave ring.

The sealing ring is a pressurized waterproof sealing ring with a non-wetting surface as a main body of the surface capable of expanding after absorbing water;

an annular notch is arranged on the pipe wall of the non-wetting waterproof surface at the position of the pressurization waterproof sealing ring or an I-shaped annular fixing frame is additionally arranged between the pipe walls, and the inner surface of the annular notch or the I-shaped annular fixing frame is a non-wetting surface.

The locking type pipeline connector is characterized in that the sealing ring is provided with a sealing sheath, and the sealing sheath can be tightly attached to the outer wall of the inner layer pipeline or the inner wall of the outer layer pipeline.

The locking type pipeline interface is characterized in that a flexible sealing ring close to the inner side of the interface is combined with a rigid gasket close to the outer side of the interface, or the flexible sealing ring is combined with a sealing concave ring which has better rigidity and smaller gap with the other pipe wall of the interface to replace a sleeved sealing ring; the sealing sheath with the sealing ring and the sealing ring on the sealing side of the pipe wall are provided with leakage holes or the sealing sheath and the sealing ring on the sealing side of the pipe wall are not in close contact with the pipe wall, so that the water flow permeating between the sealing sheath and the pipe wall is prevented from generating pressure.

The locking type pipeline interface is characterized in that the sealing sheath is arranged in a wedge shape; or an elastic tightening ring or an elastic expansion ring is added at the far end of the sealing sheath; or increasing the stiffness of the distal end of the sealing sheath; or a hard ring with proper size is arranged in the flexible sealing sheath, so that the sealing sheath can be better clung to the inner wall or the outer wall of one of the inner-layer pipeline and the outer-layer pipeline.

The locking type pipeline interface is characterized in that a joint area or more surfaces of a sealing ring and a sealing sheath and an inner layer pipeline or an outer layer pipeline are processed into hydrophobic surfaces.

The locking type pipeline connector is characterized in that more than two sealing rings are arranged in the connector in the front and at the back, and sealing sheaths are arranged on the outer sealing rings.

The locking type pipeline interface is characterized in that a locking nut with a locking step at the end is arranged at the pipeline interface, and a locking sleeve with a wedge-shaped longitudinal section of an annular outer wall is arranged between a gap between an inner pipeline wall and an outer pipeline wall to serve as a locking mechanism or structure for limiting relative movement of the inner pipeline and the outer pipeline.

The locking type pipeline interface is characterized in that an opening is longitudinally formed in the pipe wall of the outer layer pipeline interface; the tightening wedge-shaped ring with the thin inner part and the thick outer part is arranged in a locking nut at the joint of the pipeline, or a fastening piece or a fastening device is arranged on the outer wall of the end part of the outer layer pipeline, and the fastening piece or the fastening device is a binding wire, a fixing ring or a locking ring arranged on the outer wall of the end part of the outer layer pipeline, or a locking concave ring arranged on the outer wall of the end part of the outer layer pipeline is combined with the binding wire, the fixing ring or the locking ring fastening piece or.

The locking type pipeline interface is characterized in that more than one raised friction transverse edge is transversely arranged in the pipe wall between the openings of the outer layer pipeline interface.

The locking type pipeline connector is characterized in that a fastening outer concave ring is arranged on the outer wall of an inner-layer pipeline and within the position corresponding to a locking step of a locking nut, a fastening ring with an inner ring smaller than the periphery of the inner-layer pipeline and an outer ring larger than the inner ring of the locking step is arranged in the fastening outer concave ring, and a locking mechanism is formed by the fastening ring, the locking step and the fastening outer concave ring.

The locking type pipeline interface is characterized in that the fastening ring is provided with an opening or two semi-annular fastening rings.

The locking type pipeline interface is characterized in that a flexible ring or a gasket which is proper in elasticity is arranged between a rigid fastening ring and a locking step.

The locking type pipeline interface is characterized in that a fastening inner concave ring is arranged on the inner wall of the port of an outer layer pipeline, a fastening outer concave ring is also arranged at the position corresponding to the outer wall of the inner layer pipeline, a flexible fastening ring capable of being matched is arranged between the fastening inner concave ring and the fastening outer concave ring, and a locking mechanism is formed by the fastening ring, the fastening inner concave ring and the fastening outer concave ring to complete the fastening task of the interface.

The locking type pipeline interface is characterized in that a flexible ring or a semi-annular flexible ring is clamped by an annular rigid fastening ring or an annular rigid fastening ring with an opening or a semi-annular rigid fastening ring to be used as a combined flexible fastening ring.

The locking type pipeline connector is characterized in that more than one annular convex rib is fixedly arranged on the inner wall or the outer wall of a locking part at the water pipe connector to replace a fastening ring; or annular wedge-shaped openings or annular threads which can be mutually meshed are transversely processed on the inner wall and the outer wall of the joint locking position; or directly processing the inner wall and the outer wall at the joint locking position into rough surfaces with larger friction coefficients; or an anti-skid pad or an anti-skid sheet is added between the inner wall and the outer wall of the annular wedge-shaped opening or the annular grain at the joint locking position or between rough surfaces with larger friction coefficients; or a rigid cylindrical annular anti-skid washer or a rigid anti-skid gasket which is provided with sharp protrusions on the surface and is provided with an opening in the longitudinal direction is added between the surfaces of the joint locking part.

The locking type pipeline connector is characterized in that a fixed ring or a step is fixedly connected or arranged on the outer wall of an inner-layer pipeline and is positioned inside a locking step of a corresponding outer-wall pipeline locking screw or a fastening concave ring of an outer-wall pipeline.

The locking type pipeline interface is characterized in that a flexible ring or a gasket is arranged between a fixed circular ring or a step and a locking step or a rigid fastening ring arranged on a fastening concave ring.

The locking type pipeline connector is characterized in that a locking ring or a cylinder capable of tightly sleeving and tightening the outer wall of the pipe wall of the connector is arranged at the port of an open water pipe connector.

The locking ring or the cylinder of the locking type pipeline interface is provided with a blocking step for preventing the locking ring or the cylinder from being excessively sleeved into the port of the water pipe interface; or the wall of the locking ring or the cylinder is provided with a clamp to limit the locking ring or the cylinder to move on the water pipe connector port.

The locking type pipeline joint is characterized in that an outer thread is arranged on the outer wall of a fastening concave ring arranged in the pipe wall of an opening, and the fastening ring is tightly clamped by a locking nut with a wedge-shaped ring when the pipe wall is tightened.

The invention has the beneficial effects that: 1. when the pipeline is installed and connected, the pipeline can be directly installed without welding, gluing or tapping, so that time and labor are saved; 2. the quality is stable, and the problem of water leakage is not easy to occur; 3. the pipeline or the interface can be directly replaced when being maintained and replaced, which is very convenient; 4. the anti-seismic and anti-tensile connector has good anti-seismic and anti-tensile properties, does not need to worry about thermal expansion and cold and vibration to interface looseness, and is particularly suitable for being popularized and used in earthquake-prone areas.

Drawings

In order to more clearly illustrate the embodiments of the present application 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 application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the components of the locking pipe joint of the present invention;

FIG. 2 is a schematic view of the fitting of the locking pipe joint of the present invention;

FIG. 3 is a schematic view of the locking pipe joint according to the present invention;

FIG. 4 is a schematic view of a lock nut of the locking type pipe joint of the present invention;

FIG. 5 is a schematic view of the locking pipe joint according to the present invention;

FIG. 6 is a schematic view of a sleeved sealing ring of the locking pipe joint according to the present invention;

FIG. 7 is a schematic view of the components of the locking pipe joint of the present invention;

FIG. 8 is a schematic view of the components of the locking pipe joint of the present invention;

FIG. 9 is a schematic view of a fastening ring of the locking pipe joint according to the present invention;

FIG. 10 is a schematic view of a fastening ring of the locking pipe joint of the present invention;

FIG. 11 is a schematic view of the locking pipe joint according to the present invention;

FIG. 12 is a schematic view of the locking pipe joint according to the present invention;

FIG. 13 is a schematic view of the interface assembly of the locking type pipe joint of the present invention;

FIG. 14 is a schematic view of the locking pipe joint according to the present invention;

FIG. 15 is a schematic view of the locking pipe joint according to the present invention;

FIG. 16 is a schematic view of the locking pipe joint according to the present invention;

FIG. 17 is a schematic view of a non-slip mat of the locking pipe joint of the present invention;

FIG. 18 is a schematic view of the seal ring of the locking pipe joint of the present invention;

FIG. 19 is a schematic structural view of a fixing frame and a sealing ring of the locking type pipe joint according to the present invention;

fig. 20 is a schematic structural diagram of a sealing ring of the locking pipe joint of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

When the locking type pipeline interface is connected with a pipeline, the sealing ring and the locking structure are arranged at the interface to serve as a locking connecting mechanism, so that the pipeline interface does not need to be welded or connected in a fixed connecting mode such as bonding, and has anti-seismic and anti-tensile properties.

Example 1

With reference to fig. 1, a sealing concave ring [4] is arranged in a connector of the existing water pipe connector [1] and is used for installing a sealing ring [6], and a blocking step [2] can be arranged in an outer thread [3] of the water pipe connector [1] to prevent a locking nut [8] from being excessively screwed; a locking nut (8) with a locking step (10) at the end is arranged, an inner thread (11) is arranged on the inner wall of the locking nut (8), an outer thread (3) is arranged at the joint of the water pipe joint (1) and is matched with the inner thread, and the outer wall of the locking nut (8) can be square or round; the locking sleeve [7] provided with a circular ring [13] as a circular cylinder [12] with a wedge-shaped outer wall longitudinal section at one side of the body (namely the inner wall of the locking sleeve [7] is straight, the outer wall is a wedge-shaped with one end combined with the body [13] and the other end is large), the locking sleeve [7] is preferably made of a flexible and elastic material, and the friction coefficient is preferably large. When the water pipe joint is installed, the sealing ring [6] is installed in the sealing concave ring [4], the water pipe [5] is inserted into the sealing concave ring [4] and the sealing ring [6] in the water pipe joint [1] at a proper distance, then the wedge-shaped circular cylinder [12] of the locking sleeve [7] is inserted into a gap between the water pipe [5] and the water pipe joint [1], and finally when the locking nut [8] is screwed up with the water pipe joint [1], the locking sleeve [7] is further pushed into the gap between the water pipe [5] and the water pipe joint [1] by the locking step [10] of the locking nut [8], so that the water pipe [5] is tightly combined with the water pipe joint [1], the water pipe [5] is difficult to slip or break loose from the water pipe joint [1] under high pressure, and the locking nut [8] and the locking sleeve [7] form a locking structure. The friction coefficient of the outer wall of the water pipe [5] and the inner wall of the interface of the water pipe interface [1] is preferably as large as possible. After the water pipe is installed, the water pipe [5] and the water pipe connector [1] are sealed by the sealing ring [6] to prevent water flow in the pipe from leaking, and the water pipe [5] and the water pipe connector [1] are locked by the locking step [10] of the locking nut [8] and the locking sleeve [7] to prevent the water pipe [5] from measuring the slippage from the water pipe connector [1 ]. Meanwhile, because the water pipe connector [1] is not fixedly connected with the water pipe [5] any more, when the connector is slightly loosened and slides, the sealing ring [6] still can play a good sealing effect and can not leak water, and the connector can not leak water due to expansion and contraction caused by heat and contraction of the fixture of the pipe network or vibration until the connector is loosened, so that the performance of the pipe network is better.

Further, referring to fig. 2, in this embodiment, a sealing concave ring [4] in the water pipe connector [1] may also be disposed on the outer wall of the water pipe [5], and during installation, the sealing ring [6] is first sleeved in the sealing concave ring [4], and then the water pipe [5] and the sealing ring [6] are simultaneously inserted into the water pipe connector [1] for a proper distance. The sealing concave ring [4] can also be arranged in the water pipe connector [1 ].

Further, with reference to fig. 3 and 4, in this embodiment, an opening [15] shown in fig. 3 is processed at the interface of the water pipe connector [1], and a wedge-shaped ring [17] shown in fig. 4, which is thick at the top and thin at the bottom (i.e., thin at the middle and thick at the outer end), is arranged in the lock nut [8] (the wedge-shaped ring [17] can also be processed into a whole with the inner wall of the lock nut [8], so that the aperture at the port of the inner cavity of the lock nut [8] is smaller than that at the middle part, and at this time, the wedge-shaped ring [17] can prevent the lock nut [8] from being completely sleeved at the interface of the. When the locking screw cap [8] is screwed down, the wedge-shaped ring [17] directly compresses each piece at the interface of the water pipe interface [1] of the opening inwards with the outer wall of the water pipe [5], so that the fastening effect is better.

Furthermore, when the friction coefficient between the inner wall of the water pipe connector (1) and the outer wall of the water pipe (5) is large enough to effectively prevent the water pipe (5) from slipping, the locking sleeve (7) can be omitted.

Furthermore, with reference to fig. 5, more than one raised transverse edge [16] can be transversely arranged in the pipe wall between the openings [15] at the interface of the water pipe interface [1], so that the friction coefficient between the inner wall of the interface of the water pipe interface [1] and the outer wall of the water pipe [5] is increased, and the water pipe [5] is more difficult to slip from the water pipe interface [1 ].

Furthermore, in the embodiment, the sealing ring [6] and the locking sleeve [7] can also be made of elastic materials, so that the sealing ring [6] and the locking sleeve [7] can be tightly stretched on the outer wall of the water pipe [5], the sealing ring [6] and the locking sleeve [7] cannot easily slide on the outer wall of the water pipe or the outer wall of the water pipe [5], and the sealing concave ring [4] can be omitted according to specific conditions.

Furthermore, with reference to fig. 6, when the sealing concave ring [4] is arranged in the water pipe connector [1], because the contact surface between the sealing ring [6] and the water pipe connector [1] is large and difficult to leak water, but the contact surface between the sealing ring [6] and the water pipe [5] is small and easy to leak water, a sealing jacket [18] which is integrated with the sealing ring [6] can be arranged on the sealing ring [6] to form a sleeved sealing ring [19], the sealing jacket [18] is preferably made of an elastic non-wetting surface flexible material, and the circumference is preferably not larger than the circumference of the water pipe [5], so that the inner wall of the sealing jacket [18] can be tightly attached to the outer wall of the water pipe [5 ]. Firstly, a sleeved sealing ring [19] is arranged in a sealing concave ring [4] in a water pipe connector [1], a sealing sheath [18] faces the connector, and then a water pipe [5] is inserted into the sleeved sealing ring [19] to enable the sealing sheath [18] to tightly wrap the outer wall of the water pipe [5 ]. When high-pressure water flow in the water pipe enters the gap between the water pipe [5] and the water pipe connector [1], the sealing sheath [18] is further tightly wrapped on the outer wall of the water pipe [5], the sealing distance or area is increased, and the sealing effect is improved. In the embodiment, the sealing ring [6] and the sealing sheath [18] can also be arranged to be separated, when in installation, the sealing sheath [18] is firstly arranged at the sealing concave ring [4] on the inner wall of the water pipe connector [1], then the outer end of the sealing sheath [18] is pressed in the sealing concave ring [4] on the inner wall of the water pipe connector [1] by the sealing ring [6], after the water pipe [5] is inserted into the sealing ring [6], the sealing sheath [18] is tightly pressed in the sealing concave ring [4] on the inner wall of the water pipe connector [1], and at the moment, the separated sealing sheath [18] and the sealing ring [6] can generate the same effect with the integral sleeved sealing ring [6 ]. In the embodiment, the sealing sheath [18] is preferably wedge-shaped as a whole, namely, the end close to the sealing ring [6] is large, and the end far away from the sealing ring [6] is small, so that the sealing sheath [18] can better wrap the outer wall of the water pipe [5], and an elastic tightening ring can be added on the periphery of the distal end of the sealing sheath, so that the sealing sheath [18] can be more tightly attached to the outer wall of the water pipe [5 ]. In the embodiment, the inner wall of the sealing sheath [18] and the outer wall of the water pipe [5] can be processed into hydrophobic surfaces, so that water flow in the pipe is more difficult to leak from the inner wall of the sealing sheath [18] and the outer wall of the water pipe [5], and the sealing effect is improved. Similarly, when the sealing concave ring [4] is arranged on the water pipe [5], the sealing sheath [18] can be processed into a shape that the perimeter is not less than the perimeter of the inner cavity of the water pipe interface [1], so that the outer wall of the sealing sheath [18] can be tightly attached to the inner wall of the water pipe interface [1], at the moment, the sealing sheath [18] is in a shape of inverted wedge integrally, namely, one end close to the sealing ring [6] is small, and the other end far away from the sealing ring [6] is large, so that the sealing sheath [18] can be better tightly attached to the inner wall of the water pipe interface [1 ]; an elastic expansion ring can be added on the inner periphery of the far end of the sealing sheath, so that the sealing sheath [18] can be attached to the inner wall of the water pipe connector [1] more tightly; the hardness of the distal end of the sealing sheath [18] can be increased, or a hard ring with a proper size is arranged in the flexible sealing sheath, so that the sealing sheath [18] can be better attached to the inner wall of the water pipe interface [1 ].

Furthermore, the inner side and the outer side of the sealing ring [6] can be provided with a sealing sheath [18], so that the inner wall and the outer wall of the pipeline joint are provided with the sealing sheaths [18], and the anti-seepage performance is improved.

Furthermore, a thickened flexible sealing ring [6] can be combined with a rigid gasket to replace a sleeved sealing ring [19], wherein the flexible sealing ring [6] is easy to deform under the action of pressure and is suitable for being in close contact with the inner wall and the outer wall of the water pipe connector; the rigid gasket is arranged in the sealing concave ring (4) of the interface and leans against the outer side of the interface, and when the rigid gasket is difficult to be integrally arranged in the sealing concave ring (4), two half circles of rigid gaskets can be spliced together and arranged in the sealing concave ring (4). After the water pipe is installed, when the water pressure in the water pipe is high, the water pressure firstly extrudes the flexible sealing ring [6] and pushes the interface outwards, but the flexible sealing ring cannot move outwards under the common blocking of the rigid gasket and the sealing concave ring [4], and because the fluid pressure between the outer side of the interface and the inner wall and the outer wall of the interface between the inner ring and the outer ring of the flexible sealing ring [6] and the interface between the water pipe is almost zero, the flexible sealing ring [6] transversely deforms under the action of the fluid pressure and enables the inner ring and the outer wall of the interface between the inner ring and the outer ring to be contacted and attached more tightly. The rigid gasket and the sealing concave ring [4] or the pipe wall at the interface are provided with a small gap, but the flexible sealing ring [6] is ensured not to be damaged under the fluid pressure, so that the fluid pressure between the inner ring and the outer ring of the flexible sealing ring [6] and the inner wall and the outer wall at the interface of the water pipe can be always kept in the lowest range. When the gap between the sealing concave ring [4] and the other pipe wall at the interface is smaller and can play the role of a rigid gasket, the rigid gasket can be omitted.

Furthermore, a leakage hole can be arranged on the sealing sheath [18] sleeved with the sealing ring [19] and the sealing ring on the sealing side of the pipe wall for pressure relief, or the sealing sheath [18] and the sealing ring on the sealing side of the pipe wall are not in close contact with the pipe wall so as to facilitate pressure relief, so that water flow permeating between the sealing sheath [18] and the pipe wall cannot generate pressure, the sealing sheath [18] can be tightly attached to the pipe wall, and the sealing effect is improved.

Further, referring to fig. 7, two seal rings [6] and two seal recessed rings [4] are provided in the front and rear of the joint to improve the sealing performance, and a seal ring fitted with a seal ring [19] is preferably installed in the second seal recessed ring [20] located on the outer side.

Furthermore, with reference to fig. 8, a fastening outer concave ring [22] is arranged at the position corresponding to the locking step [10] of the water pipe [5] and the locking nut [8] or slightly in the position, when the water pipe [5] is installed, the fastening ring [23] is installed on the water pipe [5] (the inner ring of the fastening ring [23] is smaller than the outer periphery of the water pipe [5] and can be matched with the fastening outer concave ring [22], the outer ring of the fastening ring [23] is larger than the inner ring of the locking step [10] and can be matched with the inner wall of the locking nut [8 ]), then the locking nut [8] is screwed with the water pipe connector [1], and the fastening ring [23], the locking step [10] and the fastening outer concave ring [22] jointly complete the fastening task of the connector, so that the water pipe [5] is prevented from easily slipping out of the water pipe connector [1 ].

Furthermore, with reference to fig. 9, the fastening ring [23] is provided with an opening [24], so that the caliber of the fastening ring [23] is increased and the fastening ring is easy to install when the fastening ring [23] is installed.

Further, referring to fig. 10, the fastening ring (23) is formed into two semi-annular fastening rings (25), so that the fastening rings can be installed more easily.

Furthermore, a flexible ring or a gasket is arranged between the fastening ring and the locking step [10], so that a certain buffer space is formed between the fastening ring and the locking step [10], the flexible ring or the gasket is proper to have elasticity, and the joint has better shock resistance and tensile resistance.

Furthermore, with reference to fig. 11, a fastening inner concave ring [21] is arranged on the inner wall of the port of the water pipe interface [1], a fastening outer concave ring [22] is also arranged at the position corresponding to the water pipe [5], when in installation, a fastening ring [23] is firstly installed on the water pipe [5], then the water pipe [5] and the fastening ring [23] are inserted into the water pipe interface [1] together by force, the fastening ring [23] enters the fastening inner concave ring [21] of the water pipe interface [1], and the fastening ring [23], the fastening inner concave ring [21] and the fastening outer concave ring [22] complete the fastening task of the interface together, so that the water pipe [5] is prevented from slipping out of the water pipe interface [1] easily.

Furthermore, the fastening ring (23) can be made of flexible and elastic material, so that the installation is convenient, and the interface has a certain telescopic space.

Furthermore, with reference to fig. 12, more than one opening [15] is longitudinally arranged at the end of the water pipe connector [1] along the pipe wall, so that the end of the water pipe connector [1] is naturally opened, the fastening ring is conveniently installed in the fastening inward concave ring [21], and then the end of the water pipe connector [1] is locked (i.e. the opening [15] is closed as much as possible) by using a fastening piece or a device (such as a binding wire, a fixing ring, a locking ring and the like) on the outer wall of the end of the water pipe connector [1], so that the fastening ring [23] (which can be rigid at this time), the fastening inward concave ring [21] and the fastening outward concave ring [22] are combined more tightly, and the water pipe [5] is prevented from easily slipping from the water pipe connector [1] better.

Furthermore, the flexible ring is clamped by two integral sheets or an annular rigid fastening ring with an opening to be used as a combined flexible fastening ring; or the two semi-annular rigid fastening rings clamp the semi-annular flexible circular ring to be used as a semi-annular combined flexible fastening ring, and the two groups of semi-annular flexible fastening rings are used as combined flexible fastening rings; or the two groups of semi-annular rigid fastening rings clamp the annular flexible ring to be used as a combined flexible fastening ring, so that the combined fastening ring has rigidity and flexibility, and the rigid fastening rings on the two sides of the flexible ring can be used in a mode of being integrally formed and provided with openings or being mutually mixed in a semi-annular mode.

Furthermore, with reference to fig. 13, a locking concave ring [27] is arranged on the outer wall of the end part of the water pipe connector [1], a locking ring [9] is arranged at the locking concave ring [27] of the water pipe connector [1], the inner ring of the locking ring [9] is matched with the locking concave ring [27] when the opening [15] is tightly closed, namely, the locking ring [9] tightly combines the fastening ring [23], the fastening concave ring [21] and the fastening concave ring [22], and simultaneously, the locking ring [9] is not easy to slide.

Furthermore, a locking ring or a cylinder which can be tightly sleeved and internally retracted (namely, an opening of the interface is tightly and tightly attached to the inner pipe wall or the fastening ring [23]) on the outer wall of the pipe wall of the interface can be arranged at the port of the water pipe interface [1 ]. The locking ring or the cylinder is preferably provided with a blocking step, and the blocking step prevents the locking ring or the cylinder from being sleeved into the port of the water pipe interface [1] to be overlong or excessive. And a clamp can be arranged on the pipe wall of the locking ring or the cylinder to limit the locking ring or the cylinder to move on the port of the water pipe connector (1).

Furthermore, similarly, a fastening concave ring [21] can be arranged in the pipe wall of the opening [15] shown in fig. 3, the fastening ring [23] is arranged in the fastening concave ring [21], and the fastening ring [23] is clamped by a locking nut [8] with a wedge-shaped ring [17] when the pipe wall with the opening is tightened.

Furthermore, with reference to fig. 14, an annular rib [28] can be directly machined or fixedly arranged on the inner wall of the water pipe connector [1] to replace a fastening ring [23], and the annular rib [28] and the fastening outer concave ring [22] are meshed together during installation, so that the connector is simpler to install. And similarly, an annular convex rib [28] can be machined or fixedly arranged on the outer wall of the water pipe to replace the fastening ring [23], and the annular convex rib [28] and the fastening concave ring [21] are meshed together during installation.

Furthermore, more than two annular convex ridges which can be mutually meshed and a fastening outer concave ring [22] or a fastening inner concave ring [21] can be arranged on the inner wall of the water pipe connector [1] or the outer wall of the water pipe [5], so that a locking structure is added, and the locking effect is improved.

Furthermore, with reference to fig. 15 and 16, it is also possible to directly and transversely process annular wedge-shaped openings or annular grooves [29] capable of being engaged with each other on the inner and outer walls at the joint locking position, and the annular wedge-shaped openings or the annular grooves [29] are directly engaged with each other to prevent the joint from slipping after the joint is locked. Similarly, the inner wall and the outer wall of the joint locking part can be directly machined into rough surfaces to increase the longitudinal sliding friction coefficient and prevent the locked joint from slipping. The rough surface can be an uneven rough surface, or the pipe wall at the interface is provided with anti-falling or anti-slip barbs which are engaged mutually and oppositely.

Furthermore, with reference to fig. 17, an annular anti-skid pad [30] may be added between the inner and outer walls of the annular wedge or the annular groove [29] at the joint locking position, or between rough surfaces with a large friction coefficient, or a rigid cylindrical annular anti-skid washer with a longitudinal opening and sharp protrusions may be directly added between the surfaces of the normal pipe joint or the surfaces subjected to anti-skid treatment (such as the annular wedge or the annular groove [29], the rough surfaces, etc.) (preferably, both surfaces are added at the same time), so as to further improve the anti-skid and locking effects. The annular anti-skid pad [30] and the rigid cylindrical annular anti-skid washer can also be formed by curling anti-skid sheets and rigid anti-skid gaskets with proper sizes around a water pipe.

Furthermore, a rigid hard ring with a plurality of barbs or sharp wedge-shaped rings on the inner wall can be arranged in the water pipe connector [1], the rigid hard ring can move inside and outside in the water pipe connector [1] in the sealing ring [6], the inner wall is just matched with the water pipe, and the barbs or the sharp wedge-shaped rings face to the inner end of the water pipe connector [1], so that the water pipe cannot be drawn out after being inserted into the rigid hard ring. When the water pipe is installed, the water pipe is firstly inserted into the rigid hard ring in the water pipe connector [1], then the water pipe is pulled outwards by force to enable the sealing ring [6] to generate transverse deformation and to be tightly contacted with the inner wall and the outer wall in the water pipe connector [1], and then the inner wall or the port outside the sealing ring [6] of the water pipe connector [1] and the outer wall of the water pipe are fixed or locked by a locking mechanism or a fastening mechanism, so that the sealing performance of the water pipe connector [1] is better. The fixing or locking mode outside the sealing ring [6] can be realized by processing or fastening a screw hole on the water pipe or the water pipe connector [1] and fastening the screw hole by using a screw; or the rigid hard ring with a plurality of barbs or sharp wedge-shaped rings on the inner wall can be reversely arranged on the external water pipe with the rigid hard ring in the water pipe connector [1] and the external rigid hard ring is tightly contacted with the port of the water pipe connector [1], so that the rigid hard ring can be provided with an opening for facilitating the installation, the rigid hard ring is conveniently sleeved into the water pipe, and finally the rigid hard ring with the opening is fastened by a proper fastener; other suitable fastening modes can be used for fastening the water pipe interface [1] between the outer wall of the water pipe and the outer part of the sealing ring [6 ]. In addition, a flexible or elastic backing ring can be arranged between the fastening piece on the outer wall of the water pipe and the port of the water pipe connector [1], the flexible backing ring is preferably elastic, and the fastening effect can be judged by observing the deformation of the flexible backing ring at the port of the water pipe connector [1] during fastening.

Furthermore, in the embodiment, a convex fixed ring, step or convex edge can be fixedly connected or arranged on the outer wall of the water pipe [5], and is positioned in the locking step [10] of the corresponding locking nut [8] or the fastening concave ring [21] of the water pipe connector [1], and a locking mechanism is formed by the fixed ring or step and the locking step [10] or the fastening ring [23] arranged on the fastening concave ring [21 ].

Furthermore, in the embodiment, a flexible ring or a gasket can be arranged between the fixed ring or the step and the locking step [10] or the rigid fastening ring [23] arranged on the fastening concave ring [21], so that a certain buffer space is reserved between the fixed ring or the step and the locking step [10] or the rigid fastening ring [23] arranged on the fastening concave ring [21], and the flexible ring or the gasket is preferably elastic, so that the joint has better shock resistance and tensile resistance.

In the embodiment, the sealing ring [6] and the locking sleeve [7] can also be made of elastic materials, so that the sealing ring [6] and the locking sleeve [7] can be tightly stretched on the outer wall of the water pipe [5], the sealing ring [6] and the locking sleeve [7] cannot easily slide on the outer wall of the water pipe, and a sealing concave ring is omitted.

Furthermore, as shown in fig. 18, the sealing ring is a pressurized waterproof sealing ring [31] which can expand after absorbing water, when water seeps between the pressurized waterproof sealing ring [31] and the pipe wall, the pressurized waterproof sealing ring [31] absorbs water to expand, the space between the pressurized waterproof sealing ring [31] and the pipe wall is filled more compactly, and the water is prevented from entering.

Furthermore, the pressurizing waterproof sealing ring [31] can be formed by wrapping water-absorbing and easily-swelling powder or particle substances (such as sodium polyacrylate, sodium methyl silicate, water-absorbing resin and the like) by using a hydrophilic fabric or a water-permeable membrane [33] to form an annular pressurizing type accessory pressurizing ring [34], wrapping the main body of the pressurizing ring [34] by using a soft and extensible non-wetting membrane [32] to expose a small part of the pressurizing ring [34], so that the surface main body of the pressurizing waterproof sealing ring [31] is a non-wetting surface as much as possible, and the exposed part can be contacted with waterproof surfaces at two sides; the position of the pressurization ring [34] exposed outside can be freely selected, but the middle part or the water outlet side of the pressurization waterproof sealing ring [31] contacting with the non-wetting surface is suitable. The pressurizing waterproof sealing ring [31] can also be processed by wrapping water-absorbing and easily-expanded powder or granular substances by a non-infiltration film [32] with water-permeable pores or micropores in a water-permeable area; or part of the surface of the hydrophilic fabric or the water-permeable membrane [33] of the pressurizing ring [34] can be directly processed into a water-tight non-wetting surface; or the water-absorbing and easily-expandable substance can be directly processed into a strip block with stable shape and proper size to replace a pressurizing ring [34], and then a non-wetting film [32] with proper size or specification is wrapped outside the pressurizing ring; part of the surface of the pressurizing ring [34] which is processed by the water-absorbing and easily-expandable substance can be directly processed into a non-wetting surface, and a non-wetting film [32] can be omitted.

In the present embodiment, the pressurizing waterproof seal ring [31] may have various regular shapes suitable for the use environment, or may have irregular shapes according to the use environment and conditions.

Further, with reference to fig. 20, in order to enable the pressurized waterproof sealing ring [31] to maintain a higher pressure after absorbing water, an annular notch [36] with a good mechanical property and a proper size can be machined on the pipe wall of the non-wetting waterproof surface (the notch can be in a regular geometric shape or a shape convenient to install and machine), the annular notch [36] can be arranged in one or two pipe walls of the two non-wetting waterproof surfaces, the inner surface of the annular notch [36] is suitable for the non-wetting surface, and the pressurized waterproof sealing ring [31] is installed in the annular notch [36], so that the pressurized waterproof sealing ring [31] can only expand in a space formed by the notch [11] after absorbing water, and pressurization is faster and higher, and the waterproof effect is better.

Further, with reference to fig. 19, an i-shaped annular fixing frame [35] with good mechanical properties can be processed, the i-shaped inner surface of the annular fixing frame [35] is preferably a non-wetting surface, and pressurizing waterproof sealing rings [31] are tightly arranged on the inner side and the outer side of the annular fixing frame [35 ]; after the pressurization waterproof sealing ring [31] absorbs water, the pressurization waterproof sealing ring can only expand in a limited or restricted space formed between the annular fixing frame [35] and the non-wetting pipe wall, so that the pressurization is faster and higher, and the waterproof effect is better.

Furthermore, when the inner pipe wall is soft and difficult to maintain a stable shape, a rigid hard ring can be additionally arranged at the opening of the inner pipe to ensure that the inner pipe wall maintains the stable shape.

In this embodiment, the pipe interface is not limited to the standard pipe insertion interface, and the pipe interface may be inserted into the standard pipe and the corresponding connection mode may be adjusted.

In the embodiment, when the pipeline, particularly the inner layer pipeline, has low rigidity and is easy to deform, the rigid hard ring tightly attached to the wall of the inner layer pipeline can be arranged in the inner layer pipeline, so that the stability of the interface is improved.

In this embodiment, all the pipes and pipe joints or pipe joints are fluid flow channels, and only the lengths of the pipes and the pipe joints are different, so that the pipes and the pipe joints can be collectively referred to as pipes, and the overlapped parts of the joints can be referred to as inner pipes and outer pipes without distinguishing the pipes and the pipe joints.

In the present embodiment, the pipe joint is not limited to the connection and installation of water pipes, but can be applied to the connection and installation of various fluid pipes.

Further, each structure or fitting and the like of the present embodiment may be processed alone, or may be provided or processed together with the corresponding structure or fitting and the like as a combined fitting; and adjacent structures or components can be processed together to form a combined accessory, so that construction and installation are facilitated.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A locking type pipeline interface is characterized by comprising a locking mechanism and a sealing device, wherein the locking mechanism and more than one sealing device are arranged between an inner pipeline and an outer pipeline which are arranged at the pipeline interface in an overlapped mode to serve as a locking sealing connecting mechanism;

the sealing device is arranged in the pipeline joint and used for sealing a gap between the outer wall of the inner-layer pipeline and the inner wall of the outer-layer pipeline;

the locking mechanism is arranged at the pipeline interface and used for limiting the inner-layer pipeline and the outer-layer pipeline to slide relatively.

2. The locking type pipeline joint according to claim 1, comprising a sealing concave ring matched with the sealing ring is arranged on the outer wall of the inner pipeline or the inner wall of the outer pipeline, and the sealing ring is arranged in the sealing concave ring;

the sealing ring includes:

the surface main body capable of expanding after absorbing water is a pressurization waterproof sealing ring with a non-infiltration surface;

3. The locking type pipeline joint of claim 1, wherein the sealing ring is provided with a sealing sheath, and the sealing sheath can be tightly attached to the outer wall of the inner pipeline or the inner wall of the outer pipeline;

the sealing boot includes:

the flexible elastic material is wedge-shaped, or an elastic tightening ring or an elastic expansion ring is added at the far end of the sealing sheath, or the hardness of the far end of the sealing sheath is increased, or a hard ring with a proper size is arranged in the flexible sealing sheath;

a flexible sealing ring close to the inner side of the interface is combined with a rigid gasket close to the outer side of the interface, or the flexible sealing ring is combined with a sealing concave ring which has better rigidity and smaller gap with the other pipe wall at the interface;

the leakage hole is arranged on the sealing sheath sleeved with the sealing ring and the sealing ring on the sealing side of the pipe wall or the sealing sheath is not in close contact with the sealing ring on the sealing side of the pipe wall.

4. A locking pipe joint according to any one of claims 1 to 3, wherein the sealing ring, sealing sheath and the inner or outer pipe fitting region or more are made hydrophobic.

5. The locking pipe fitting of claim 1, wherein said locking mechanism comprises:

a locking nut with a locking step at the end is arranged at the pipeline joint, and a locking sleeve with a wedge-shaped longitudinal section of an annular outer wall is arranged between the inner pipeline wall and the outer pipeline wall to serve as a locking mechanism for limiting the relative movement of the inner pipeline and the outer pipeline;

a rigid hard ring with an inner wall matched with the water pipe and provided with a plurality of barbs or sharp wedge-shaped rings facing the inside of the joint is arranged in the water pipe joint, and the outwards tensioned joint is fixed or locked by a locking mechanism or a fastening mechanism between the inner wall and the outer wall of the joint outside the sealing ring or between the outer wall of the water pipe and the port of the water pipe joint;

a flexible or elastic backing ring is arranged between the locking mechanism or the fastening mechanism and the port of the water pipe interface.

6. The locking pipe fitting of claim 1, wherein said locking mechanism further comprises:

a fastening outer concave ring is arranged on the outer wall of the inner pipeline and in a position corresponding to a locking step of the locking nut, a fastening ring with an inner ring smaller than the periphery of the inner pipeline and an outer ring larger than the inner ring of the locking step is arranged in the fastening outer concave ring, and the fastening ring, the locking step and the fastening outer concave ring jointly form a locking mechanism;

the inner wall of the port of the outer layer pipeline is directly provided with a fastening inner concave ring, the corresponding position of the outer wall of the inner layer pipeline is also provided with a fastening outer concave ring, a flexible fastening ring which can be inosculated is arranged between the fastening inner concave ring and the fastening outer concave ring, and the flexible fastening ring, the fastening inner concave ring and the fastening outer concave ring jointly form a locking mechanism.

7. The locking pipe fitting of any one of claims 1 or 6, wherein said locking mechanism further comprises: an opening is longitudinally arranged on the pipe wall at the interface of the outer layer pipeline; the tightening wedge-shaped ring with the thin inner part and the thick outer part is arranged in a locking nut at the joint of the pipeline, or a fastening piece or a fastening device is arranged on the outer wall of the end part of the outer layer pipeline, and the fastening piece or the fastening device is a binding wire, a fixing ring or a locking ring arranged on the outer wall of the end part of the outer layer pipeline, or a locking concave ring arranged on the outer wall of the end part of the outer layer pipeline is combined with the binding wire, the fixing ring or the locking ring fastening piece or.

8. The locking type pipe joint according to claim 7, wherein the locking mechanism is further provided with an anti-slip facility, the anti-slip facility comprises:

more than one friction transverse edge which is transversely raised is arranged in the pipe wall between the openings at the interface of the outer layer pipeline;

more than one annular fixing convex ridge arranged on the inner wall or the outer wall of the locking part at the water pipe interface replaces a fastening ring;

the annular wedge-shaped opening or the annular grain which is arranged on the inner wall and the outer wall of the joint locking part and can be engaged with each other transversely;

the rough surface with larger friction coefficient is arranged on the inner wall and the outer wall at the joint locking position;

the anti-skid pad or the anti-skid sheet is arranged between the inner wall and the outer wall of the joint locking part with the annular wedge-shaped opening or the annular grain or between rough surfaces with larger friction coefficients;

the surface between the surfaces of the joint locking part is provided with a sharp bulge and a rigid cylindrical annular anti-skid washer or a rigid anti-skid gasket with an opening in the longitudinal direction.

9. A locking pipe joint according to any one of claims 6 or 8, wherein the fastening ring is provided with an opening or in two semi-annular fastening rings.

10. The locking type pipe joint of claim 6, wherein a flexible ring or a gasket having elasticity is disposed between the rigid fastening ring and the locking step; or the flexible ring or the semi-annular flexible ring is clamped by the annular rigid fastening ring or the annular rigid fastening ring with the opening or the semi-annular rigid fastening ring to be used as the combined flexible fastening ring.