CN113931916A

CN113931916A - Protection adapter and main water pipeline system

Info

Publication number: CN113931916A
Application number: CN202111150832.8A
Authority: CN
Inventors: 马向南; 宾斌; 方逍; 赵伟杰; 王云龙; 胡梦霖; 甘涛; 刘超; 袁虎强; 蒋良勇; 王伟; 吴新文; 陈文�; 毛仕涛; 徐友; 叶健; 许山川; 王茂灵; 袁正忠; 黄剑湘
Original assignee: Kunming Bureau of Extra High Voltage Power Transmission Co
Current assignee: Kunming Bureau of Extra High Voltage Power Transmission Co
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-01-14

Abstract

The invention discloses a protective adapter and a main water pipeline system, wherein the protective adapter comprises a connector main body and a backstop, the connector main body is provided with a through hole, the inner wall of the through hole is used for being connected with a voltage-sharing electrode, and the outer wall of the connector main body is used for being connected with an interface of a pipeline; the backstop is connected to the inner wall of the through hole and used for limiting water flow; when the pressure equalizing electrode extrudes the backstop to penetrate through the joint main body, the backstop is arranged between the pressure equalizing electrode and the inner wall of the through hole in a sealing manner; when the voltage-sharing electrode is separated from the through hole, the backstop restores to deform to seal and separate the through hole. Thereby set up the protection adapter and can avoid frequently carrying on the interface that mutual motion damaged the pipeline between pipeline and the voltage-sharing electrode, be convenient for realize the protection of kneck on the pipeline, the dismouting of the voltage-sharing electrode of being convenient for. The main water pipeline system comprises a protection adapter, a pipeline and a voltage-sharing electrode, and the pipeline and the voltage-sharing electrode are connected through the protection adapter, so that the pipeline and the voltage-sharing electrode are prevented from being directly connected.

Description

Protection adapter and main water pipeline system

Technical Field

The invention relates to the field of heat dissipation protection components, in particular to a protection adapter and a main water pipeline system.

Background

In actual production operation, the grading electrode is seriously scaled, and the grading electrode is damaged due to long-time scaling. Therefore, the voltage-sharing electrode needs to be detached and replaced regularly, the plastic nut base for installing the voltage-sharing electrode and the inner cooling water pipe are connected together in a hot melting mode, at present, workers generally use an open spanner to clamp the nut directly according to experience to detach and install the voltage-sharing electrode, the welding position of the plastic nut base for installing the voltage-sharing electrode and the inner cooling water pipe can be damaged irreversibly, the problem of water leakage can be caused, the cold water pipe needs to be replaced at the moment, the cold water pipe is high in cost, and much economic loss is caused; under the operating condition of high voltage, high water pressure, along with the increase of time, the butt fusion department becomes the weakest place of whole water pipe, greatly increased the water pipe possibility of exploding, for ensureing work safety, must in time change the water pipe when overhauing the butt fusion department damage, it is with high costs.

Disclosure of Invention

Because during dismouting voltage-sharing electrode, can cause irreversible damage to the water pipe butt fusion department to produce the problem of leaking, based on this, it is necessary to provide a protection adapter and main water pipeline system, through be equipped with this protection adapter between pipeline and voltage-sharing electrode, so that realize the protection of kneck on the pipeline, the dismouting of the voltage-sharing electrode of being convenient for, cost of maintenance is low.

The specific technical scheme is as follows:

on one hand, the application relates to a protective adapter which comprises an adapter main body and a backstop, wherein the adapter main body is provided with a through hole, the inner wall of the through hole is used for being connected with a voltage-sharing electrode, and the outer wall of the adapter main body is used for being connected with an interface of a pipeline; the backstop is connected to the inner wall of the through hole and used for limiting water flow; when the pressure equalizing electrode extrudes the backstop to penetrate through the joint main body, the backstop is arranged between the pressure equalizing electrode and the inner wall of the through hole in a sealing manner; when the voltage-sharing electrode is separated from the through hole, the backstop restores to deform to seal and cut off the through hole.

Above-mentioned protection adapter is when using, will protect the adapter to connect between pipeline and voltage-sharing electrode, the outer wall connection of this joint main part in the kneck of pipeline, this voltage-sharing electrode is connected in the inner wall of this joint main part, avoid the interface lug connection of this voltage-sharing electrode and this pipeline, when the dismantlement of voltage-sharing electrode is carried out to needs, only need with voltage-sharing electrode and joint main part separation, the interface of this pipeline keeps the fastening with the joint main part to be connected, thereby avoid frequently carrying out the interface that mutual motion damaged this pipeline between pipeline and the voltage-sharing electrode. The non-return piece is connected to the inner wall of the connector main body, so that the non-return piece can be arranged at a gap between the inner wall of the connector main body and the voltage-sharing electrode when the voltage-sharing electrode is inserted into the connector main body, and water flow is limited to pass through; when the voltage-sharing electrode is disassembled, the check piece is closed to seal the through hole, so that water flow is prevented from flowing out through the joint main body, and the sealing performance can be ensured. Through being equipped with this protection adapter between pipeline and voltage-sharing electrode to the protection of kneck on the realization pipeline, the dismouting of the voltage-sharing electrode of being convenient for, cost of maintenance is low.

The technical solution is further explained below:

in one embodiment, the joint body comprises an external joint and an internal joint, the external joint is used for being connected with an interface of a pipeline, the external joint is provided with a first section of hole, the internal joint is provided with a second section of hole, the first section of hole is communicated with the second section of hole to form the through hole, and the external contour of the internal joint is larger than that of the external joint. This external joint forms convex structure with the internal joint, and the interface and the external articulate of this pipeline, this internal joint stretch out in the interface of this pipeline to be convenient for this joint main part respectively with the interface and the voltage-sharing electrode connection of pipeline, rational in infrastructure, the dismouting is convenient, and is good to the barrier propterty of pipeline interface.

In one embodiment, the outer wall of the external connector is provided with an external thread for matching with the pipeline thread, and the through hole is provided with an internal thread for matching with the pressure equalizing electrode thread. The external connector can be screwed into the interface of the pipeline by arranging the external thread on the outer wall of the external connector, so that the external connector is embedded in the pipeline, the structure is reasonable, the external connector is prevented from being damaged due to the fact that the interface connection part of the external connector and the pipeline is exposed, and the external connector is convenient to assemble. The through hole is internally provided with an internal thread matched with the thread of the voltage-sharing electrode in a corresponding manner, so that the voltage-sharing electrode can be conveniently disassembled and assembled, the connection tightness is stable, and the service life is long.

In one embodiment, the backstop is a gasket, and the backstop is embedded in the inner wall of the through hole. The gasket is embedded in the inner wall of the through hole, when the voltage-sharing electrode is connected with the inner wall of the through hole, the check piece is sleeved on the voltage-sharing electrode, the sealing performance is good, and when the voltage-sharing electrode is separated from the through hole, the check piece is tightened up under the action of self-binding force and water pressure to block the through hole, so that water flow is limited to flow out.

In one embodiment, an inner inclined plane is arranged between the first section of hole and the second section of hole, the cross section width of the inner inclined plane gradually decreases along the direction from the second section of hole to the first section of hole, and the backstop is embedded in the inner inclined plane. This backstop sets up in this interior inclined plane for when this voltage-sharing electrode separates with the through-hole, this backstop tightens up through self binding power and water pressure effect down, and to the direction that is close to first section hole in this interior inclined plane tightens up the removal, thereby the shutoff is in the interior inclined plane between first section hole and second section hole, this interior inclined plane can play the guide effect to the backstop, make this backstop can the shutoff in the narrower department in through-hole aperture, be convenient for realize this backstop's the back that contracts.

In one embodiment, the protection adapter further comprises an external handle, a mounting hole is formed in the outer wall of the internal connection adapter, and the external handle is fixedly connected to the inner wall of the mounting hole. Through this external handle of fixed connection on this internal joint, the dismantlement of this protection adapter of being convenient for is convenient for change moment through the external handle that sets up different length, and the dismouting is convenient.

In one embodiment, the outer wall of the inner joint is arranged in a regular hexagonal structure. The outer wall through with the internal joint sets up to regular hexagon structure, and the dismouting of this protection adapter is realized to external spanner of being convenient for, and simple structure is reasonable, and the atress is stable.

In one embodiment, the outer wall of the end of the fitting body connected to the pipe is provided with perforations for changing the direction and speed of the water flow.

On the other hand, this application still provides a main water pipe-line system, including the protection adapter in above-mentioned arbitrary embodiment, still include pipeline and voltage-sharing electrode, the outer wall of pipeline is equipped with overhanging interface, overhanging interface with the outer wall connection who connects the main part, voltage-sharing electrode's one end is worn to locate connect the main part and place in overhanging interface in the pipeline.

This main water pipe-line system realizes being connected of this pipeline and voltage-sharing electrode through being equipped with the protection adapter, avoids pipeline and voltage-sharing electrode lug connection, when dismantling voltage-sharing electrode, can independently accomplish, and pipeline and voltage-sharing electrode can not influence each other, have reduced the number of times of the required dismouting of pipe connection department, are convenient for protect the junction of pipeline.

In one embodiment, the number of the overhanging interfaces, the number of the protecting adapters and the number of the voltage-sharing electrodes are two, the two overhanging interfaces are symmetrically arranged on the outer wall of the pipeline, and each voltage-sharing electrode is connected to one of the overhanging interfaces through one protecting adapter, and one protecting adapter is fixedly connected with the one voltage-sharing electrode. Through this overhanging interface of symmetry setting, can improve this main water pipe-line system's radiating effect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.

Furthermore, the drawings are not to scale of 1:1, and the relative dimensions of the various elements in the drawings are drawn only by way of example and not necessarily to true scale.

FIG. 1 is a schematic diagram of an overall configuration of a main water piping system according to an embodiment;

FIG. 2 is a front view of a main water piping system according to one embodiment;

FIG. 3 is a side view of a main water piping system according to one embodiment;

FIG. 4 is an internal cross-sectional view of a main water piping system according to one embodiment;

figure 5 is a schematic structural view of a protective adapter according to an embodiment;

fig. 6 is a schematic structural diagram of a voltage-sharing electrode according to an embodiment.

Description of reference numerals:

10. a protection adapter; 100. a connector body; 110. a through hole; 112. a first section of bore; 114. a second section of holes; 120. an external connector; 130. an inner joint; 134. mounting holes; 140. an inner inclined plane; 200. a backstop;

20. a main water piping system; 300. a pipeline; 310. an overhanging interface; 400. a voltage-sharing electrode; 410. a probe; 420. connecting blocks; 430. and (4) a nut.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Because corrosion of metal parts such as a thyristor radiator and the like cannot be completely avoided, scaling on the voltage-sharing electrode 400 is serious, regular cleaning is required, time and labor are wasted, and cost is wasted, so that the main water pipeline system 20 convenient for dismounting and mounting the voltage-sharing electrode 400 is provided.

Referring to fig. 1 to 3, a main water pipeline system 20 in an embodiment includes a protective adapter 10, a pipeline 300 and a voltage-sharing electrode 400, the protective adapter 10 includes a connector main body 100 and a backstop 200, an external interface 310 is disposed on an outer wall of the pipeline 300, the external interface 310 is connected to an outer wall of the connector main body 100, and one end of the voltage-sharing electrode 400 is inserted into the connector main body 100 and the external interface 310 and is embedded in the pipeline 300.

This main water pipe-line system 20 realizes the connection of this pipeline 300 and voltage-sharing electrode 400 through being equipped with protection adapter 10, avoids pipeline 300 and voltage-sharing electrode 400 lug connection, when dismantling voltage-sharing electrode 400, can independently accomplish, and pipeline 300 can not influence each other with voltage-sharing electrode 400, has reduced the number of times of the required dismouting of pipeline 300 junction, is convenient for protect the junction of pipeline 300.

Referring to fig. 4, in some embodiments, the number of the overhanging interfaces 310, the protection adapters 10 and the voltage-sharing electrodes 400 is two, the two overhanging interfaces 310 are symmetrically disposed on the outer wall of the pipeline 300, and each voltage-sharing electrode 400 is connected to one of the overhanging interfaces 310 through one protection adapter 10, and one protection adapter 10 is fixedly connected to the one voltage-sharing electrode. By symmetrically disposing the overhanging joints 310, the heat dissipation effect of the main water pipe system 20 can be improved.

Specifically, this protect adapter 10's joint main part 100 and pipeline 300 all adopt the polyvinylidene fluoride material to support for this joint main part 100 is good with this pipeline 300's interconnect, reduces and leads to the probability of pipeline 300 interior thread tooth damage because of the interact power when developing the dismouting of voltage-sharing electrode 400, greatly reduced pipeline 300 because of the kneck thread tooth damage the possibility of being forced to change, practiced thrift the maintenance cost.

Referring to fig. 5, specifically, the protective adapter 10 further includes a backstop 200, the adapter body 100 is provided with a through hole 110, an inner wall of the through hole 110 is used for connecting with the voltage-sharing electrode 400, and an outer wall of the adapter body 100 is used for connecting with an interface of the pipeline 300; a stopper 200 is coupled to an inner wall of the through-hole 110, the stopper 200 serving to restrict the flow of water therethrough; when the voltage-sharing electrode 400 presses the stopper 200 to penetrate through the joint body 100, the stopper 200 is hermetically disposed between the voltage-sharing electrode 400 and the inner wall of the through hole 110; when the voltage equalizing electrode 400 is separated from the through-hole 110, the stopper 200 is restored to be deformed to seal off the through-hole 110.

Above-mentioned protection adapter 10 is when using, connect this protection adapter 10 between pipeline 300 and voltage-sharing electrode 400, the outer wall that should connect main part 100 is connected in the kneck of pipeline 300, this voltage-sharing electrode 400 is connected in this inner wall that connects main part 100, avoid this voltage-sharing electrode 400 and this pipeline 300's interface lug connection, when the dismantlement of voltage-sharing electrode 400 needs to be carried out, only need with voltage-sharing electrode 400 with connect main part 100 separation, this pipeline 300's interface keeps fastening connection with connecting main part 100, thereby avoid frequently carrying out the interface that mutual motion damaged this pipeline 300 between pipeline 300 and the voltage-sharing electrode 400. By connecting the non-return member 200 to the inner wall of the joint main body 100, the non-return member 200 can be arranged at a gap between the inner wall of the joint main body 100 and the voltage-sharing electrode 400 when the voltage-sharing electrode 400 is inserted into the joint main body 100, thereby limiting the water flow; when the voltage-sharing electrode 400 is disassembled, the backstop 200 is closed to seal the through hole 110, so that water flow is prevented from flowing out through the joint main body 100, and the sealing performance can be ensured. Through being equipped with this protection adapter 10 between pipeline 300 and voltage-sharing electrode 400 to the protection of kneck is convenient for realize pipeline 300 and goes up, the dismouting of voltage-sharing electrode 400 of being convenient for, cost of maintenance is low.

Referring to fig. 6, specifically, the voltage-sharing electrode 400 includes a probe 410, a connecting block 420 and a nut 430, the connecting block 420 and the nut 430 are both fixedly connected to the probe 410, when the voltage-sharing electrode 400 is installed, the nut 430 is driven by a wrench to tightly connect the connecting block 420 with the connector body 100, and the probe 410 is inserted into the pipe 300 after passing through the connector body 100 and the outward-extending connector 310.

Referring to fig. 4 and 5, in some embodiments, the connector body 100 includes an external connector 120 and an internal connector 130, an outer wall of the external connector 120 is used for connecting with an interface of a pipeline 300, the external connector 120 is provided with a first section of hole 112, the internal connector 130 is provided with a second section of hole 114, the first section of hole 112 is communicated with the second section of hole 114 to form a through hole 110, and an outer contour of the internal connector 130 is larger than an outer contour of the external connector 120. This external joint 120 forms convex structure with internal joint 130, and the interface and the external joint 120 of this pipeline 300 are connected, and this internal joint 130 stretches out in the interface of this pipeline 300 to be convenient for this joint main part 100 is connected with the interface and the voltage-sharing electrode 400 of pipeline 300 respectively, and is rational in infrastructure, and the dismouting is convenient, and the barrier propterty to pipeline 300 interface is good.

Referring to fig. 5, in some embodiments, the outer wall of the external connector 120 is provided with external threads for screw-fitting with the pipe 300, and the through hole 110 is provided with internal threads for screw-fitting with the voltage-sharing electrode 400. The external thread is arranged on the outer wall of the external connector 120, so that the external connector 120 can be screwed into the interface of the pipeline 300, the external connector 120 is embedded in the pipeline 300, the structure is reasonable, the external connector 120 is prevented from being exposed to damage at the interface connection part of the pipeline 300, and the assembly is convenient. The through hole 110 is correspondingly provided with an internal thread matched with the thread of the voltage-sharing electrode 400, so that the voltage-sharing electrode 400 can be conveniently disassembled and assembled, the connection tightness is stable, and the service life is long.

Specifically, the inner wall of the overhanging interface 310 is provided with an internal thread matching with the external thread on the outer wall of the external connector 120, and the connecting block 420 of the voltage-sharing electrode 400 is provided with an external thread matching with the internal thread on the inner wall of the through hole 110. This voltage-sharing electrode 400 directly links to each other with this protection adapter 10, is developing voltage-sharing electrode 400 inspection dismantlement in-process, probably because of the material difference is big or the misoperation, leads to this protection adapter 10's screw tooth to damage, only need this moment to protect adapter 10 change can, easy operation is convenient, has effectively promoted maintenance efficiency, and this protection adapter 10 low in cost, reduces the cost of overhaul.

Referring to fig. 5, in some embodiments, the backstop 200 is a gasket, and the backstop 200 is embedded in the inner wall of the through hole 110. This gasket is embedded in the inner wall of through-hole 110, and when voltage-sharing electrode 400 and the inner wall of through-hole 110 were connected, this voltage-sharing electrode 400 was located to this backstop 200 cover, and sealing performance is good, and when voltage-sharing electrode 400 and through-hole 110 separated, this backstop 200 tightened up under through self constraint power and water pressure effect with shutoff through-hole 110 to restriction rivers flow.

Alternatively, the check member 200 may be a check valve, which is closed to limit the water flow after the voltage-sharing electrode 400 is disassembled. The stopping means 200 may also be an elastic member, and after the voltage-sharing electrode 400 is disassembled, the stopping means 200 elastically recovers to retract and block the through hole 110, thereby limiting the water flow.

Referring to fig. 5, in some embodiments, an inner inclined surface 140 is disposed between the first-stage hole 112 and the second-stage hole 114, a cross-sectional width of the inner inclined surface 140 gradually decreases along a direction from the second-stage hole 114 to the first-stage hole 112, and the backstop 200 is embedded in the inner inclined surface 140. The non-return member 200 is disposed on the inner inclined surface 140, so that when the voltage equalizing electrode 400 is separated from the through hole 110, the non-return member 200 is tightened under the action of self-restraint force and water pressure and is tightened and moved towards the direction close to the first section of hole 112 in the inner inclined surface 140, so as to be plugged in the inner inclined surface 140 between the first section of hole 112 and the second section of hole 114, the inner inclined surface 140 can guide the non-return member 200, so that the non-return member 200 can be plugged in the narrow part of the through hole 110, and the non-return member 200 can be retracted conveniently.

Referring to fig. 5, in some embodiments, the protective adapter 10 further includes an external handle, not shown, a mounting hole 134 is formed on an outer wall of the internal connector 130, and the external handle is fixedly connected to an inner wall of the mounting hole 134. Through this external handle of fixed connection on this internal joint 130, the dismantlement of this protection adapter 10 of being convenient for, through setting up the external handle of different length change moment of being convenient for, the dismouting is convenient.

Referring to fig. 1, in some embodiments, the outer wall of the inner connector 130 is configured as a regular hexagon. The outer wall of the inner connector 130 is arranged to be of a regular hexagon structure, so that the protective adapter 10 can be conveniently assembled and disassembled by an external wrench, the structure is simple and reasonable, and the stress is stable.

Referring to fig. 1 and 5, in some embodiments, the outer wall of the end of the joint body 100 connected to the pipe 300 is provided with a perforation for changing the direction and speed of the water flow.

Specifically, the through hole is an irregular circular hole, the through hole is opened at the internal connection port of the joint main body 100, and the internal connection port is arranged in the pipe 300, so that when water in the pipe 300 flows into the internal connection port through the through hole, the original water flow direction and water flow speed can be changed, and the scaling speed of the pressure-equalizing electrode 400 is reduced. Can slow down the scale deposit speed of voltage-sharing electrode 400 to a great extent through setting up the perforation, prolong the clearance cycle, practice thrift manpower and materials cost.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; 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.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A protective adapter, comprising:

the connector comprises a connector main body, a pressure-equalizing electrode and a connector, wherein the connector main body is provided with a through hole, the inner wall of the through hole is used for being connected with the pressure-equalizing electrode, and the outer wall of the connector main body is used for being connected with an interface of a pipeline; and

the backstop is connected to the inner wall of the through hole in an openable and closable manner and used for limiting water flow;

when the pressure equalizing electrode extrudes the backstop to penetrate through the joint main body, the backstop is arranged between the pressure equalizing electrode and the inner wall of the through hole in a sealing manner;

when the voltage-sharing electrode is separated from the through hole, the backstop restores to deform to seal and cut off the through hole.

2. The protective adapter of claim 1, wherein the adapter body includes an outer adapter and an inner adapter, wherein an outer wall of the outer adapter is configured to interface with a conduit, the outer adapter defines a first segment of the bore, the inner adapter defines a second segment of the bore, the first segment of the bore communicates with the second segment of the bore to form the through-bore, and an outer profile of the inner adapter is larger than an outer profile of the outer adapter.

3. The protective adaptor of claim 2 wherein said outer wall of said male connector has external threads for threaded engagement with a pipe, and said through bore has internal threads for threaded engagement with a pressure-equalizing electrode.

4. The protective adapter of claim 2, wherein the backstop is a gasket and is embedded in an inner wall of the through hole.

5. The protective adapter according to claim 4, wherein an inner inclined surface is disposed between the first section of the bore and the second section of the bore, the inner inclined surface having a cross-sectional width that gradually decreases from the second section of the bore to the first section of the bore, and the backstop is embedded in the inner inclined surface.

6. The protective adapter according to claim 2, further comprising an external handle, wherein a mounting hole is formed in an outer wall of the internal connector, and the external handle is fixedly connected to an inner wall of the mounting hole.

7. The protective adaptor of claim 2 wherein said outer wall of said inner terminal is configured as a regular hexagon.

8. The protective adaptor of any one of claims 1 to 7 wherein the outer wall of the end of the adaptor body to which the pipe is attached is provided with perforations for changing the direction and speed of the water flow.

9. A main water pipeline system, comprising the protective adapter according to any one of claims 1 to 8, further comprising a pipeline and a voltage-sharing electrode, wherein an outer wall of the pipeline is provided with an overhanging connector, the overhanging connector is connected with an outer wall of the connector main body, and one end of the voltage-sharing electrode is inserted into the connector main body and the overhanging connector and is arranged in the pipeline.

10. The main water pipeline system according to claim 9, wherein the number of the overhanging joints, the protecting adapters and the voltage-sharing electrodes is two, the two overhanging joints are symmetrically arranged on the outer wall of the pipeline, and each voltage-sharing electrode is connected with one of the overhanging joints through one of the protecting adapters, and one of the protecting adapters is fixedly connected with the one of the overhanging joints.