CN218757763U - Multi-way pipe fitting with multiple channels inside - Google Patents

Abstract

The utility model discloses the inside multichannel that has pipe fitting that leads to relates to drain fitting technical field, especially relates to a kitchen and bathroom are with inside multichannel prevent scurrying water and lead to pipe fitting that leads to. The utility model discloses a: an inner channel plug-in, a multi-way pipe fitting and a connecting pipe fitting; the interior of the multi-way pipe fitting is inserted with an inner channel plug-in unit, so that at least two channels are formed in the multi-way pipe fitting, one channel is an inner channel of the inner channel plug-in unit, and the other channel is an outer channel formed between the inner channel plug-in unit and the multi-way pipe fitting; the connecting pipe fitting is arranged at the pipe joint of the multi-way pipe fitting, can be connected with other pipe fittings and drainage equipment, and can also be used for fixedly packaging the inner channel plug-in unit. The technical scheme of the utility model traditional downcomer spare connector among the prior art of having solved is few, and connected mode is single, and various equipment scurries water each other often appears, and phenomenons such as mutual pollution, neither sanitary damage equipment again, still deodorant simultaneously, the protection against insects, brings very big vexation and health injury scheduling problem for the user.

Description

Multi-way pipe fitting with multiple channels inside

Technical Field

The utility model discloses the inside multichannel that has pipe fittings that lead to more relates to water drainage pipe fitting technical field, especially relates to a kitchen and bathroom are with inside multichannel that prevent scurrying water and lead to pipe fitting.

Background

In recent years, a plurality of kitchen and bathroom appliances such as small kitchen appliances, water purifiers, dish washing machines, shoe washing machines, drying machines, central air conditioners and the like are necessary for home decoration, partial equipment can be temporarily added in daily life, the number of the lower drainage pipeline of the traditional building is small, the traditional drainage pipeline has few connectors, the phenomenon that various equipment scurry water mutually often occurs, the equipment is not sanitary and damaged, odor and insect are not prevented, the pursuit of people for high-quality life is not met, and the user can feel worried and seriously harm the health of your body and family people. The utility model discloses a research out a new kitchen and bathroom multi-equipment concentrate drainage, multichannel prevent scurrying water, deodorant, protection against insects's many through-tubes spare, thoroughly solved the various difficult problems that vast users met in daily life.

In view of the above problems in the prior art, it is necessary to develop a new multi-way pipe with multiple channels inside, so as to overcome the problems in the prior art.

Disclosure of Invention

The traditional downcomer spare connector that provides according to above-mentioned prior art is few, and connected mode is single, can't satisfy many equipment drainage simultaneously, and various equipment appear often scurrys water each other, phenomenon such as mutual pollution, and neither health damages equipment again, and the while is deodorant, does not prevent insects, brings very big vexation and technical problem such as health injury for the user, and provides the pipe fitting that leads to more that inside has the multichannel. The utility model discloses mainly utilize the interior passageway plug-in components of adorning in the multi-ported spare, with the multi-ported spare inside of many connectors divide into two at least passageways, make the moisture channel that each mouth of pipe flowed in and flow, concentrate on the drainage port discharge down to play the effect that prevents that each pipeline mouth from scurrying water and deodorant protection against insects.

The utility model discloses a technical means as follows:

a multi-ported tubular member with multiple channels therein comprising: an inner channel plug-in, a multi-way pipe fitting and a connecting pipe fitting;

furthermore, an inner channel plug-in is inserted in the multi-way pipe fitting, so that at least two channels are formed in the multi-way pipe fitting, one channel is an inner channel of the inner channel plug-in, and the other channel is an outer channel formed between the inner channel plug-in and the multi-way pipe fitting;

the connecting pipe fitting is arranged at the pipe joint of the multi-way pipe fitting, can be connected with other pipe fittings and drainage equipment, and can also be used for fixedly packaging the inner channel plug-in unit.

Further, the inner channel insert comprises: the plug-in connector has four structures of an external thread short receiving inner channel plug-in connector, an external socket short receiving inner channel plug-in connector, an external thread long receiving inner channel plug-in connector and an external thread receiving inner channel plug-in connector with a pipe inserting part;

further, the male short-receiving inner channel insert comprises: the inner pipe and the annular fixed clamping table; the annular fixing clamping table is positioned at the top of the inner pipe; the annular fixing clamping table is processed into an external thread connecting port;

further, the outer socket short-stub inner channel plug-in includes: the inner pipe, the receiving barrel and the annular fixing clamping table; the top of the inner pipe is provided with a bearing cylinder, and the top of the bearing cylinder is provided with an annular fixed clamping table; the bearing cylinder is processed into one connection form of an external thread connection port and an external insertion connection port;

further, the male threaded elongate female channel insert comprises: the inner pipe, the long bearing cylinder and the annular fixing clamping table; the top of the inner pipe is provided with a long bearing cylinder, and the long bearing cylinder is processed into one of an external thread connecting port and an external insertion connecting port; the annular fixing clamping table is arranged in the middle of the long bearing barrel;

further, the cannulated male receiving inner channel insert comprises: the inner tube, the receiving cylinder, the annular fixing clamping table and the cannula part; the top of the inner pipe is provided with a bearing cylinder, and the top of the bearing cylinder is provided with an annular fixed clamping table; the bearing cylinder is processed into one connection form of an external thread connector and an external insertion connector; the top of the annular fixing clamping table is provided with a cannula part with an inverted tooth installing structure.

Further, the manifold member comprises: the pipe fitting comprises a three-way pipe fitting, a cross-shaped multi-way pipe fitting, a vertical multi-way pipe fitting, a horizontal multi-way pipe fitting, a bend-way multi-way pipe fitting and a reducing multi-way pipe fitting;

further, the three-way type pipe includes: a vertical pipe and a transverse main pipe; a transverse main pipe is arranged on the vertical pipe; the upper port part of the vertical pipe and the connecting port part of the transverse main pipe are set to be in one of an external thread connecting port, an internal thread connecting port and an inserted connecting port; the lower port part of the vertical pipe is set to be in one connection form of an external thread connector, an internal thread connector and an external insertion connector;

further, the cross-shaped multi-way tube member comprises: a vertical pipe and a transverse main pipe; two sides of the vertical pipe are respectively provided with a transverse main pipe; the upper port part of the vertical pipe and the connecting port part of the transverse main pipe are set to be in one of an external thread connecting port, an internal thread connecting port and an inserted connecting port; the lower port of the vertical pipe is set to be one of an external thread connector, an internal thread connector and an external insertion connector;

further, the vertical manifold piece includes: a vertical pipe, a transverse main pipe; at least two transverse main pipes are arranged on the vertical pipe; the upper port part of the vertical pipe and the connecting port part of the transverse main pipe are set to be in one of an external thread connecting port, an internal thread connecting port and an inserted connecting port; the lower port of the vertical pipe is set to be one of an external thread connector, an internal thread connector and an external insertion connector;

further, horizontal multi-way tube spare includes: a vertical pipe, a transverse main pipe; the vertical pipe and the transverse main pipe form a structure similar to a tee joint, and at least one vertical branch pipe is arranged on the transverse main pipe; the upper port part of the vertical pipe, the connecting port part of the transverse main pipe and the connecting port part of the vertical branch pipe are set to be in one of an external thread connecting port, an internal thread connecting port and an interpolation connecting port; the lower port of the vertical pipe is set to be one of an external thread connector, an internal thread connector and an external insertion connector;

further, the elbow-type multi-way pipe fitting includes: a bent pipe, a vertical branch pipe and a transverse main pipe; the bent angle of the bent pipe is provided with a vertical branch pipe and communicated with the vertical branch pipe; a transverse main pipe is arranged on the vertical branch pipe; the transverse pipe part of the elbow pipe can be provided with vertical branch pipes which are communicated; the mouth parts of the vertical branch pipe, the transverse main pipe and the transverse connecting port of the elbow pipe are arranged into one of an external thread connecting port, an internal thread connecting port and an internal inserting connecting port; the lower port part of the elbow pipe is set to be one of an external thread connector, an internal thread connector and an external insertion connector;

further, the reducing multi-pass pipe spare includes: the device comprises a vertical pipe, a conical socket part, a thin horizontal pipe and a conical connecting socket; the thin horizontal pipes are arranged on the side walls of the vertical pipes and are communicated with each other; the top of the vertical pipe is provided with a conical socket part; the side wall of the vertical pipe is also provided with a conical connecting socket; the outer wall of the opening part of the thin transverse pipe is provided with a conical connecting socket, and the inner wall of the opening part of the thin transverse pipe is an internal thread connecting port; the lower end connecting port of the vertical pipe is set to be one of an external thread connecting port, an internal thread connecting port and an external insertion connecting port.

Furthermore, when the lower port parts of the vertical pipe and the bent through pipe are arranged as outer insertion connectors, the outer wall of the outer insertion connector is provided with a sealing ring groove for assembling a sealing ring, and the inner wall of the outer insertion connector is arranged as an inner thread connector connected with the deodorization core.

Furthermore, the upper parts of the lower port parts of the vertical pipe and the bent through pipe vertical pipe part are also provided with an inner insertion type sealing pipe cover.

Further, the inner channel insert may be mounted to the upper port portion of the vertical pipe, the upper port portion of the vertical branch pipe, the connecting port portion of the horizontal pipe portion of the elbow pipe, and the connecting port portion of the horizontal main pipe.

Furthermore, the length of the inner pipe is adjustable, and the bottom end of the inner pipe exceeds the opening of the transverse main pipe or the vertical branch pipe communicated with the inner pipe, so that water flowing out of the transverse main pipe or the vertical branch pipe is prevented from flowing back.

Furthermore, a conical connecting socket with an upward opening is vertically arranged on the pipe wall of the thin transverse pipe; an internal thread connector is arranged inside the conical connection socket;

furthermore, the top of the vertical pipe of the reducing multi-way pipe fitting can also be a closed structure

Further, the connecting pipe includes: the pipe fitting comprises an elbow, a conical plug, a silica gel reducing plug, a silica gel sealing ring and a fixed nut cover, but is not limited to the pipe fitting;

the connection ports of the elbow, the tapered insert, the silica gel reducing plug, the silica gel sealing ring, and the nut cap are formed in one of a male connection port, a female connection port, an external insertion connection port, and an internal insertion connection port, but not limited to the above connection modes.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model provides a multi-way pipe fitting with multiple channels inside, various multi-way pipe fitting shells take a vertical pipe as a main drainage channel, and are provided with one or more transverse main pipes and matched connecting pieces with different connecting modes in different directions or angles; the various inner channel plug-ins adopt external thread short connection, external socket short connection, external thread long connection and external thread connection inner drainage channel plug-ins with socket parts, are arranged in multi-way pipe fittings of different connectors as required, and divide the drainage channel in the multi-way shell into an inner drainage channel and an outer drainage channel;

2. the utility model provides a multi-way pipe fitting with multiple channels inside, which is characterized in that the drainage of the external connector of the multi-way shell is collected to the bottom drainage port of the vertical pipe through respective drainage channels and is discharged in a centralized way, thus thoroughly solving the problems of centralized drainage of multiple devices and mutual water channeling;

3. the utility model provides an inside has multichannel to lead to the pipe fitting, and different service environment adopts the different many pipe fittings that lead to, and different connectors and the collocation of different inner channel plug-in components, bottom drainage oral area and the collocation of deodorant part can satisfy completely that the user is to all demands such as kitchen, bathroom, many equipment, many bores, multi-direction, prevent scurrying water, deodorant.

To sum up, use the technical scheme of the utility model traditional downcomer spare connector among the prior art of having solved is few, and connected mode is single, and drain pipe socket department seals not tight and returns the foul smell, and the unable installation of drain pipe of heavy-calibre or both ends area nut, and various equipment that often appear scurries water each other, phenomenon such as mutual pollution, neither sanitary damage equipment again, still deodorant simultaneously, the protection against insects, bring very big vexation and health injury scheduling problem for the user.

Drawings

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

FIG. 1 is a schematic view of the structure of the male short receiving inner channel plug-in of the present invention;

fig. 2 is a schematic structural view of a three-way pipe fitting in embodiment 1 of the present invention;

FIG. 3 is a schematic view of an assembly structure of embodiment 1 of the present invention;

FIG. 4 is a schematic view of the structure of the plug-in unit for the outer socket and the inner channel of the present invention;

fig. 5 is a schematic structural view of a three-way pipe fitting in embodiment 2 of the present invention;

fig. 6 is an assembly structure diagram of embodiment 2 of the present invention;

FIG. 7 is a schematic view of the structure of the male connector for receiving the inner channel with long external thread;

fig. 8 is a schematic structural view of a cross-shaped multi-way pipe fitting in embodiment 3 of the present invention;

fig. 9 is an assembly structure diagram of embodiment 3 of the present invention;

fig. 10 is a schematic structural view of a cross-shaped multi-way pipe fitting in embodiment 4 of the present invention;

fig. 11 is an assembly structure diagram of embodiment 4 of the present invention;

FIG. 12 is a schematic view of the structure of the inner channel plug-in unit with the plug-in pipe part and the external thread

Fig. 13 is a schematic structural view of a vertical multi-way pipe fitting in embodiment 5 of the present invention;

fig. 14 is an assembly structure diagram of embodiment 5 of the present invention;

fig. 15 is a schematic structural view of a vertical multi-way pipe fitting in embodiment 6 of the present invention;

fig. 16 is an assembly structure diagram of embodiment 6 of the present invention;

fig. 17 is a schematic structural view of a horizontal multi-way pipe fitting according to embodiment 7 of the present invention;

fig. 18 is an assembly structure diagram of embodiment 7 of the present invention;

fig. 19 is a schematic structural view of a horizontal multi-way pipe fitting according to embodiment 8 of the present invention;

fig. 20 is an assembly structure diagram of embodiment 8 of the present invention;

fig. 21 is a schematic structural view of a horizontal multi-way pipe fitting in embodiment 9 of the present invention;

fig. 22 is an assembly structure diagram of the embodiment 9 of the present invention;

fig. 23 is a schematic structural view of a elbow-type multi-way pipe fitting according to embodiment 10 of the present invention;

fig. 24 is an assembly structure diagram of embodiment 10 of the present invention;

fig. 25 is a schematic structural view of a elbow-type multi-way pipe fitting according to embodiment 11 of the present invention;

fig. 26 is an assembly structure diagram of embodiment 11 of the present invention.

In the figure: 1. the anti-odor device comprises an external thread short receiving inner channel plug-in 2, an external socket short receiving inner channel plug-in 3, an external thread long receiving inner channel plug-in 4, an external thread receiving inner channel plug-in 5 with an insertion pipe part, an inner pipe 6, an annular fixing clamping table 7, an external thread connecting port 8, a receiving cylinder 9, a long receiving cylinder 10, an insertion pipe part 11, a vertical pipe 12, a transverse main pipe 13, an internal thread connecting port 14, an external insertion connecting port 15, a stopping table 16, an anti-odor core 17, a vertical branch pipe 18, an internal insertion connecting port 19, a bent through pipe 20, a tapered socket part 21, a thin transverse pipe 22, a tapered connecting socket 23, a sealing ring groove 24, a sealing pipe cover 25, an elbow 26, a tapered plug-in 27, a silica gel reducing plug 28, a silica gel sealing ring 29, a fixing nut cover 30 and an anti-odor part.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus that are known by one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms do not have special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

Example 1

As shown in fig. 1-3, the utility model provides an inside has multichannel pipe fitting that leads to more, include: the external thread is used for short receiving of the inner channel plug-in 1, the three-way pipe fitting and other connecting pipe fittings; the external thread short-adapting inner channel plug-in 1 is screwed in from an internal thread connector 13 at the upper port part of a vertical pipe 11 of the tee pipe fitting, the bottom end of the inner pipe 5 is lower than the port part of a transverse main pipe 12, an elbow 25 is continuously screwed at the upper part of the external thread short-adapting inner channel plug-in 1, and a conical plug-in 26 is assembled at the other end of the elbow 25 through the internal thread connector 13; the connecting port of the transverse main pipe 12 of the three-way pipe fitting is provided with a conical plug-in 26 through the internal thread connecting port 13; the three-way pipe is connected with a drainage pipe such as a floor drain through an external thread connector 7 at the lower end opening part of the vertical pipe 11.

The water drained from the upper end of the vertical pipe 11 is drained from the inner channel to the bottom drainage port, and the water drained from the transverse main pipe 12 is drained from the outer channel to the bottom drainage port. The embodiment is suitable for a floor drain of a washing machine in a toilet or is connected with a deodorization core and an upper cover thereof and inserted into a PVC sewer pipe, and an external thread connector at the lower end of a tee pipe is continuously connected with a connector at the side surface of an elbow or a tee, so that horizontal ground connection can be completed; the drainage pipe is connected with two devices for drainage, and the problems that sewage is stored in the drainage pipe, the drainage is not smooth, the devices mutually flee water, the devices are installed in a narrow space and the like are solved.

Example 2

As shown in fig. 4 to 6, (on the basis of embodiment 1) the present invention also provides a multi-way pipe having multiple channels inside, including: the outer socket is short-jointed with the inner channel plug-in 2, the three-way pipe fitting and other connecting pipe fittings; the outer inserting connecting port 14 of the outer inserting opening short-receiving inner channel plug-in 2 is inserted into the three-way pipe fitting from the upper end opening part of the vertical pipe 11 of the three-way pipe fitting, the bottom end of the inner pipe 5 is lower than the opening part of the transverse main pipe 12, after the silica gel sealing ring 28 is placed on the upper part of the outer inserting opening short-receiving inner channel plug-in 2, the fixing nut cover 29 or the drain pipe nut is screwed with the upper end opening part of the three-way pipe fitting through the external thread connecting port 7, and the outer inserting opening short-receiving inner channel plug-in 2 and the silica gel sealing ring 28 are fixed; the connecting port part of the transverse main pipe 12 is connected with one end of an elbow 25 through an internal thread connecting port 13, and the other end of the elbow 25 is provided with a conical plug-in 26; the lower port of the three-way pipe is connected with the drainage pipe through the external insertion connector 14 and sealed through a sealing ring.

The water discharged from the upper end of the vertical pipe 1 is discharged to the bottom water outlet through the inner channel, and the water discharged from the transverse main pipe 12 is discharged to the bottom water outlet through the outer water discharge channel. This embodiment is applicable to the kitchen, various equipment connection PVC sewer pipe drainage of guarding, the drain pipe of the different pipe diameters of vertical pipe upper portion silica gel closed loop interpolation, utilize silica gel elasticity, flexible sealing, upper portion external screw thread connector also can be directly and drain pipe nut lug connection, the outer O type closed loop of bottom socket and inside deodorant part can block scurrying on the foul smell of socket portion, many kinds of pipe diameters have been realized to the adjustable realization of horizontal spinal branch pipe socket direction, it is multi-direction, deodorant, prevent scurrying water, demands such as narrow and small space installation.

Example 3

As shown in fig. 7 to 9, (on the basis of embodiment 1) the present invention also provides a multi-way pipe fitting having multiple channels inside, including: the external thread is long-jointed with the inner channel plug-in 3, the cross multi-way pipe fitting and other connecting pipe fittings; the external thread long-bearing inner channel plug-in 3 bears the external thread of the lower part of the cylinder and is screwed into the cross-shaped multi-way pipe fitting by the internal thread of the upper port part of the vertical pipe 11 of the cross-shaped multi-way pipe fitting, the bottom end of the inner pipe 5 is lower than the port part of the transverse main pipe 12, the top end of the annular fixing clamping table 6 of the external thread long-bearing inner channel plug-in 3 is assembled with a conical plug-in 26 by the external thread, the connecting port part of the transverse main pipe 12 on one side is assembled with the conical plug-in 26 by the internal thread connecting port 13, the connecting port part of the transverse main pipe 12 on the other side is connected with the elbow 25 by the internal thread connecting port 13, and the other end of the elbow 25 is assembled with the conical plug-in 26 by the internal thread connecting port 13; the lower port part of the cross multi-way pipe is connected with drainage pipe fittings such as a floor drain and the like through an external thread connector 7.

The water discharged from the upper end of the vertical pipe 11 is discharged to the bottom water outlet through the inner water discharge channel, and the water discharged from the lateral main pipes 12 at the two sides is guided by the inner insert and discharged to the bottom lower water outlet through the outer water discharge channel; the embodiment is suitable for a floor drain of a washing machine or connected with other pipe fittings to be installed in a sewer pipeline, solves the problem of water drainage with medium and small pipe diameters in the upper and side directions, and has the characteristics of narrow space installation, multi-direction, multi-angle, no water channeling and the like.

Example 4

As shown in fig. 10 and 11, (based on embodiment 1) the present invention also provides a multi-way pipe having multiple channels inside, including: the outer socket is short for receiving the inner channel plug-in 2, the cross multi-way pipe fitting and other connecting pipe fittings; an outer inserting connecting port 14 of the outer socket short-receiving inner channel plug-in 2 is inserted into the cross-shaped multi-way pipe fitting from the upper end opening part of a vertical pipe 11 of the cross-shaped multi-way pipe fitting, the bottom end of an inner pipe 5 is lower than the opening part of a transverse main pipe 12, after a silica gel sealing ring 28 is placed on the upper part of the outer socket short-receiving inner channel plug-in 2, a fixing nut cover 29 and the upper end opening part of the cross-shaped multi-way pipe fitting are screwed tightly through an external thread connecting port 7, and the outer socket short-receiving inner channel plug-in 2 and the silica gel sealing ring 28 are fixed; the conical insertion parts 26 are respectively assembled on the connecting ports of the two transverse main pipes 12 through the internal threaded connecting ports 13; the deodorization core 16 is arranged at the stop table 15 in the vertical pipe 11; the lower port of the cross multi-way pipe is connected with the drainage pipe through the external inserting connector 14 and sealed through the sealing ring.

The water drained from the upper end of the vertical pipe 11 is drained from the inner channel to the bottom drainage outlet, and the water drained from the two transverse main pipes 12 is guided by the inner insert to flow through the outer channel to the bottom drainage outlet. The embodiment is suitable for narrow and small spaces of kitchen, toilet and PVC sewer pipelines and multi-direction drainage, the main connecting port at the upper part of the vertical pipe can be connected with a large-diameter drain pipe, the horizontal branch pipe can be connected with middle and small-opening drain pipes such as a dish washer and a washing machine, and can also be connected with equipment such as a water purifier through pipe fittings such as reducing pipes, so that the drain pipes in three directions can drain simultaneously, and the closed ring at the outer opening of the bottom and the inner deodorization part complete inner and outer deodorization.

Example 5

As shown in fig. 12 to 14, (on the basis of embodiment 1) the present invention also provides a multi-way pipe having multiple channels inside, including: the external thread of the pipe inserting part is used for receiving an inner channel plug-in 4, a vertical multi-way pipe fitting and other connecting pipe fittings; the external thread bearing inner channel plug-in 4 with the pipe inserting part is screwed in from the upper end opening part of the vertical multi-way pipe fitting and is in threaded connection with an internal thread connecting port 13 at the upper end of a vertical pipe 11 of the vertical multi-way pipe fitting through the external thread of a bearing cylinder 8; the two transverse main pipes 12 of the vertical multi-way pipe fitting are provided with conical plug-in units 26 through internal thread connecting ports 13; the lower port of the vertical multi-way pipe is connected with a drainage pipe such as a floor drain through an external thread connector 7.

The water drained from the upper end of the vertical pipe 11 is drained from the inner channel to the bottom drainage port, and the water drained from the transverse main pipe 12 is drained from the outer channel to the bottom drainage port. The embodiment is suitable for the floor drain of the multi-equipment washing machine in the washroom or is connected with other pipe fittings and then is connected with the PVC sewer pipe, and the multi-way shell can be repeatedly connected to increase the number of the connecting ports. The bottom connector can be directly connected with a floor drain and other pipe fittings and can also be connected with the elbow and the side connector of the tee joint, so that horizontal ground connection is realized, the installation height of the pipe fittings can be effectively reduced, and the drainage is smoother. The user may choose to install either upright or landscape depending on the environment of use. Effectively solves the drainage problems of low bottom space and more equipment of the kitchen cabinet and the washing machine.

Example 6

As shown in fig. 15 to 12, (on the basis of embodiment 1) the present invention also provides a multi-way pipe having multiple channels inside, including: the outer socket is short for receiving the inner channel plug-in 2, the vertical multi-way pipe fitting and other connecting pipe fittings; the outer plug-in connector 14 of the outer plug-in short-bearing inner channel plug-in 2 is inserted into the vertical multi-way pipe fitting from the upper end opening of the vertical multi-way pipe fitting, after the silica gel sealing ring 28 is placed on the upper part of the outer plug-in short-bearing inner channel plug-in, the upper end opening of the fixing nut cover 29 is screwed tightly through the external thread connector 7, and the outer plug-in short-bearing inner channel plug-in 2 and the silica gel sealing ring 28 with the cut inclined opening of the inner pipe 5 are fixed; a tapered insert 26 is assembled on the connecting port part of the upper transverse main pipe 12 through the external thread connecting port 7; inserting the outer spigot short-receiving inner channel plug-in 2 with the inner pipe 5 trimmed into the transverse main pipe 12 from the connector part of the lower transverse main pipe 12, placing a silica gel sealing ring 28 at the opening part of the outer spigot short-receiving inner channel plug-in 2, screwing a fixed nut cover 29 with the external thread connector 7 of the connector part of the transverse main pipe 12, and fixing the outer spigot short-receiving inner channel plug-in 2 and the silica gel sealing ring 28; the lower port of the vertical multi-way pipe is connected with drainage pipe fittings such as floor drain and the like and pipelines through an external thread connector 7.

The embodiment is suitable for users who have floor drains and large water discharge of bottom drainage equipment of kitchen cabinets and bathroom cabinets, and the multi-way pipe fitting bottom external thread connector is fixedly connected with the upper cover of the floor drain. The upper connecting ports and the lower connecting ports on the side surfaces can be inserted into drain pipes with different pipe diameters or directly connected with drain pipe nuts, and the upper connecting ports on the side surfaces are directly or through reducing and connected with the drain pipes in an inserting mode, so that the user requirement that the drain pipes with the nuts at two ends drain through a floor drain is thoroughly met.

Example 7

As shown in fig. 17 to 18, (on the basis of embodiment 1) the present invention also provides a multi-way pipe fitting having multiple channels inside, including: the external thread is used for short-connecting the inner channel plug-in 1, the horizontal multi-way pipe fitting and other connecting pipe fittings; the external thread short-adapting inner channel plug-in 1 is inserted from the upper port part of a vertical pipe 11 and the port part of a transverse main pipe 12 of the horizontal multi-way pipe fitting and is connected with an internal thread connecting port 13 by an external thread on an annular fixing clamping table 6 in a screwing way, and the bottom end of an inner pipe 5 is lower than the port part of the transverse main pipe 12 and longer than the port part of a branch pipe 17; a conical plug-in piece 26 is assembled at the internal thread connecting port 13 at the upper part of the external thread short-bearing internal channel plug-in piece; a conical plug 26 is assembled at the connecting port of the vertical branch pipe 17 through the internal thread connecting port 13; the connecting port of the transverse main pipe 12 is connected with one end of the elbow 25 through the internal thread connecting port 13, and the other end of the elbow 25 is provided with a conical plug-in 26 through the internal thread connecting port 13; the lower port part of the horizontal multi-way pipe fitting is connected with a drainage pipe fitting such as a floor drain and the like through an external thread connector 7.

The embodiment is suitable for draining water in the same direction by medium and small-diameter drain pipes such as floor drains of washing machines, washing cabinets, kitchen cabinets and the like, and the external thread connecting port at the bottom can be connected with the side connecting port of the elbow or the tee joint to realize horizontal ground connection; the drainage is smoother. The installation mode can be selected according to the size of the water and the space in the use environment, and the direction and the angle of the connecting port can be adjusted by utilizing an elbow or a tee. The pipe fitting is low in height, saves space, and is flexible and changeable in assembly mode and high in applicability.

Example 8

As shown in fig. 19 to 20, (on the basis of embodiment 1) the present invention also provides a multi-way pipe fitting having multiple channels inside, including: the outer socket short receiving inner channel plug-in 2, the outer thread with the inserting pipe part receiving inner channel plug-in 4, the horizontal multi-way pipe fitting and other connecting pipe fittings; an outer inserting connecting port 14 of the outer socket short-receiving inner channel plug-in 2 is inserted into a vertical pipe 11 from the upper port part of the vertical pipe 11 of the horizontal multi-way pipe fitting, the bottom end of the inner pipe 5 is lower than the port part of the horizontal main pipe 12, after a silica gel sealing ring 28 is placed on the upper part of the outer socket short-receiving inner channel plug-in 2, a fixing nut cover 29 and the upper port part of the horizontal multi-way pipe fitting are screwed through an external thread connecting port 7, and the outer socket short-receiving inner channel plug-in 2 and the silica gel sealing ring 28 are fixed; the connection port of the vertical branch pipe 17 is provided with a conical insert 26 through the internal threaded connection port 13; the externally threaded bearing inner channel plug-in unit 4 with the pipe inserting part is connected with a connecting port part of the transverse main pipe 12 through an internally threaded connecting port 13, and a port of an inner pipe 5 of the externally threaded bearing inner channel plug-in unit 4 with the pipe inserting part exceeds the port part of the vertical branch pipe 17 and is positioned at the port part of the transverse main pipe 12 and is provided with a distance from the inner pipe 5 of the externally threaded short bearing inner channel plug-in unit 2; the deodorization part joint 30 is connected and assembled with the internal thread connector 13 of the socket at the lower end of the vertical pipe 11 through external threads; the lower port part of the horizontal multi-way pipe fitting is connected with a drainage pipeline through an outer socket 14 and is internally and externally sealed through a sealing ring and an internal deodorization part.

The embodiment is specially designed for main drainage above a kitchen, and the vertical pipe main drainage channel can be connected with equipment with large drainage quantity, such as a water tank. The horizontal branch pipe is connected with equipment with small water discharge quantity, such as a water purifier, a small kitchen appliance and the like through reducing and the like, and is separated from the water purifier and the small kitchen appliance; the bottom outer plug-in opening is internally provided with a deodorization part, and the outside is plugged in the sewer pipeline to be internally and externally sealed for deodorization.

Example 9

As shown in fig. 21 to 22, (on the basis of embodiment 1) the present invention also provides a multi-way pipe having multiple channels inside, including: the outer socket is used for short receiving the inner channel plug-in 2, the horizontal multi-way pipe fitting, the reducing multi-way pipe fitting and other connecting pipe fittings; the outer spigot short-receiving inner channel plug-in 2 outer spigot 14 is inserted into the vertical pipe 11 from the upper port part of the vertical pipe 11 of the horizontal multi-way pipe fitting, and the bottom end of the inner pipe 5 is lower than the port part of the horizontal main pipe 12; after a silica gel sealing ring 28 is placed on the upper part of the outer socket short-receiving inner channel plug-in 2, a fixed nut cover 29 is screwed with the upper end opening part of the horizontal multi-way pipe fitting through an external thread connector 7, and the vertical branch pipe 17 is assembled with the reducing multi-way pipe fitting through an inserted connector 18; inserting the outer plug-in port 14 of the outer socket short-receiving inner channel plug-in 2 into the transverse main pipe 12 from the connecting port part of the transverse main pipe 12, placing a silica gel sealing ring 28 at the opening part of the outer socket short-receiving inner channel plug-in 2, screwing a fixing nut cover 29 with the external thread connecting port 7 of the connecting port part of the transverse main pipe 12, and fixing the outer socket short-receiving inner channel plug-in 2 and the silica gel sealing ring 28; the port of the inner pipe 5 of the outer socket short-receiving inner channel plug-in 2 exceeds the mouth of the vertical branch pipe 17 and is positioned at the mouth of the transverse main pipe 12 and is spaced from the inner pipe 5 of the outer socket short-receiving inner channel plug-in 2; the lower port part of the horizontal multi-way pipe fitting is connected with other pipe fittings or drainage pipelines through an outer socket 14 and is sealed through a sealing ring.

The embodiment is that kitchen drainage equipment is many and the top and the side have two main drainage and designs, and perpendicular pipe and horizontal nose end two main drainage channels can connect the thick drain pipe of bore respectively, and the reducing multipath on the horizontal branch pipe can connect dish washer, little kitchen treasured, water purifier etc. respectively. The problem that water channeling and the like can not be achieved due to the fact that main and auxiliary water tanks of a kitchen are separately drained or two water tanks and drainage equipment can not be connected mutually is thoroughly solved, and the problem that multiple equipment connected through connectors of various specifications are concentrated to the bottom to drain water in a centralized mode is achieved, and the deodorization effect is achieved.

Example 10

As shown in fig. 23 to 24, (on the basis of embodiment 1) the present invention also provides a multi-way pipe having multiple channels inside, including: the external thread short-receiving internal channel plug-in 1, the external socket short-receiving internal channel plug-in 2, the bend-through type multi-way pipe fitting, the reducing multi-way pipe fitting and other connecting pipe fittings; the external thread short-receiving inner channel plug-in 1 is screwed in from an internal thread connecting port 13 at the upper port part of a vertical branch pipe 17 of the elbow type multi-way pipe fitting, the internal thread connecting port 13 is continuously screwed with a conical plug-in 26 to seal and fix the external thread short-receiving inner channel plug-in 1 in the vertical branch pipe 17, and the bottom end of an inner pipe 5 of the external thread short-receiving inner channel plug-in 1 is lower than the port part of a transverse main pipe 12; the connecting port of the transverse main pipe 12 is assembled with a transverse reducing multi-way pipe fitting through an internal thread connecting port 13; inserting the outer plug-in connector 14 of the outer socket short-receiving inner channel plug-in 2 into the transverse main pipe 12 from a transverse connecting interface of a bend-through multi-way pipe fitting, placing a silica gel sealing ring 28 at the mouth of the outer socket short-receiving inner channel plug-in 2, screwing a fixing nut cover 29 with an external thread connector 7 of the connecting interface of the transverse main pipe 12, fixing the outer socket short-receiving inner channel plug-in 2 and the silica gel sealing ring 28, wherein the end part of an inner pipe 5 of the outer socket short-receiving inner channel plug-in 2 exceeds the central position of the mouth part of the inner pipe 5 of the external thread short-receiving inner channel plug-in 1; the lower port of the elbow type multi-way pipe fitting is connected with a drainage pipeline through an external insertion connecting port 14, sealed through a sealing ring and secondarily sealed and fixed through a socket type sealing pipe cover 24.

The embodiment is specially designed for users who mainly drain water in the side direction of the kitchen sewer pipe and have more upper drainage devices. Main drain pipe nut and pipe fitting threaded connection also can utilize the flexible sealing of silica gel seal ring with the drain pipe of different pipe diameters of interpolation, and the upper portion reducing leads to more can with different pipe diameter drain pipe connection, has avoided the many or pipe diameter thickness of drainage equipment to differ the unable problem of connecting.

Example 11

As shown in fig. 23 to 24, (on the basis of embodiment 1) the present invention also provides a multi-way pipe having multiple channels inside, comprising: the external thread short-receiving internal channel plug-in 1, the external socket short-receiving internal channel plug-in 2, the elbow type multi-way pipe fitting and other connecting pipe fittings; the external thread short-bearing inner channel plug-in 1 is screwed in from an internal thread connector 13 at the upper end opening part of a vertical branch pipe 17 of the elbow type multi-way pipe fitting, the internal thread connector 13 is continuously screwed with a conical plug-in 26 to seal and fix the external thread short-bearing inner channel plug-in 1 in the vertical branch pipe 17, and the bottom end of an inner pipe 5 of the external thread short-bearing inner channel plug-in 1 is lower than the bottom edge of the inner wall of the elbow type multi-way pipe fitting horizontal pipe; a conical plug 26 is assembled at the mouth of the vertical branch pipe 17 at the upper part of the horizontal pipe of the elbow type multi-way pipe fitting through the internal thread connecting port 13; inserting the outer plug-in port 14 of the outer socket short-receiving inner channel plug-in 2 into the transverse main pipe 12 from a transverse connecting port of a bend-through multi-way pipe fitting, placing a silica gel sealing ring 28 at the port of the outer socket short-receiving inner channel plug-in 2, screwing a fixing nut cover 29 with an external thread connecting port 7 of the connecting port of the transverse main pipe 12, fixing the outer socket short-receiving inner channel plug-in 2 and the silica gel sealing ring 28, wherein the end part of an inner pipe 5 of the outer socket short-receiving inner channel plug-in 2 exceeds the lower port of a vertical branch pipe 17 provided with a conical plug-in 26; the lower port part of the elbow type multi-way pipe fitting is connected with a drainage pipeline through an outer inserting connecting port 14, sealed through a sealing ring and secondarily sealed and fixed through a socket type sealing pipe cover 24.

The embodiment is designed for users with small space under the kitchen cabinet or washing cabinet and main drainage on the side surface; the main drainage port can be directly connected with a large-diameter drainage pipe nut, drainage pipes with different diameters can be inserted into the main drainage port through a silica gel sealing ring, an upper connector can be connected with a dish washer, a hand basin, a dryer and other equipment, a sealing cover can be used for temporary sealing, and the direction of the connector can be adjusted by an elbow. Large internal space of pipe fitting, smooth drainage, uneasy blockage, deodorization, insect prevention

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. The utility model provides an inside has multichannel multi-pass tube spare which characterized in that:

the multi-way pipe fitting with multiple channels inside comprises: an inner channel plug-in, a multi-way pipe fitting and a connecting pipe fitting;

the multi-way pipe fitting is internally inserted with an inner channel plug-in unit, so that at least two channels are formed in the multi-way pipe fitting, one channel is an inner channel of the inner channel plug-in unit, and the other channel is an outer channel formed between the inner channel plug-in unit and the multi-way pipe fitting;

the connecting pipe fitting is arranged at the pipe joint of the multi-way pipe fitting, can be connected with the pipe fitting and drainage equipment, and can also be used for fixedly packaging the inner channel plug-in unit.

2. The manifold member with multiple channels therein of claim 1, wherein:

the inner channel insert comprises: the plug-in unit comprises four structures of an external thread short receiving inner channel plug-in unit (1), an external socket short receiving inner channel plug-in unit (2), an external thread long receiving inner channel plug-in unit (3) and an external thread receiving inner channel plug-in unit (4) with a pipe inserting part;

the male screw short-receiving inner channel plug-in (1) comprises: an inner pipe (5) and an annular fixed clamping table (6); the annular fixing clamping table (6) is positioned at the top of the inner pipe (5); the annular fixing clamping table (6) is processed into an external thread connecting port (7);

the outer plug-in short-bearing inner channel plug-in (2) comprises: the inner pipe (5), the bearing cylinder (8) and the annular fixing clamping table (6); the top of the inner pipe (5) is provided with a bearing cylinder (8), and the top of the bearing cylinder (8) is provided with an annular fixed clamping table (6); the bearing cylinder (8) is processed into one connection form of an external threaded connection port (7) and an external insertion connection port (14);

the male screw long-bearing inner channel plug-in (3) comprises: the device comprises an inner pipe (5), a long bearing cylinder (9) and an annular fixed clamping table (6); the top of the inner pipe (5) is provided with a long receiving cylinder (9), and the long receiving cylinder (9) is processed into one connection form of an external threaded connector (7) and an external insertion connector (14); the annular fixed clamping table (6) is arranged in the middle of the long bearing cylinder (9);

the external thread bearing inner channel plug-in part (4) with the inserting pipe part comprises: the device comprises an inner pipe (5), a bearing barrel (8), an annular fixing clamping table (6) and a plug pipe part (10); the top of the inner pipe (5) is provided with a bearing cylinder (8), and the top of the bearing cylinder (8) is provided with an annular fixed clamping table (6); the bearing cylinder (8) is processed into one connection form of an external threaded connection port (7) and an external insertion connection port (14); the top of the annular fixing clamping table (6) is provided with a cannula part (10) with an inverted tooth installing structure.

3. The manifold member with multiple channels therein of claim 1, wherein:

the multi-way pipe fitting comprises: the pipe fitting comprises a three-way pipe fitting, a cross-shaped multi-way pipe fitting, a vertical multi-way pipe fitting, a horizontal multi-way pipe fitting, a bend-way multi-way pipe fitting and a reducing multi-way pipe fitting;

the tee type pipe fitting includes: a vertical pipe (11) and a transverse main pipe (12); a transverse main pipe (12) is arranged on the vertical pipe (11); the upper port part of the vertical pipe (11) and the connecting port part of the transverse main pipe (12) are set to be in one connecting port form of an external thread connecting port (7), an internal thread connecting port (13) and an internal inserting connecting port (18); the lower port of the vertical pipe (11) is set to be one of an external thread connecting port (7), an internal thread connecting port (13) and an external insertion connecting port (14);

the cross-shaped multi-way pipe fitting comprises: a vertical pipe (11) and a transverse main pipe (12); two sides of the vertical pipe (11) are respectively provided with a transverse main pipe (12); the upper port part of the vertical pipe (11) and the connecting port part of the transverse main pipe (12) are set to be in one connecting port form of an external thread connecting port (7), an internal thread connecting port (13) and an internal inserting connecting port (18); the lower port of the vertical pipe (11) is set to be one of an external thread connecting port (7), an internal thread connecting port (13) and an external insertion connecting port (14);

the vertical multi-way pipe fitting comprises: a vertical pipe (11) and a transverse main pipe (12); at least two transverse main pipes (12) are arranged on the vertical pipe (11); the upper port part of the vertical pipe (11) and the connecting port part of the transverse main pipe (12) are set to be in one connecting port form of an external thread connecting port (7), an internal thread connecting port (13) and an internal inserting connecting port (18); the lower port of the vertical pipe (11) is set to be one of an external thread connecting port (7), an internal thread connecting port (13) and an external insertion connecting port (14);

the horizontal multi-way pipe fitting comprises: a vertical pipe (11) and a transverse main pipe (12); the vertical pipe (11) and the transverse main pipe (12) form a structure similar to a tee joint, and at least one vertical branch pipe (17) is arranged on the transverse main pipe (12); the upper port part of the vertical pipe, the connecting part of the transverse main pipe (12) and the connecting part of the vertical branch pipe (17) are set to be in one connecting form of an external thread connecting port (7), an internal thread connecting port (13) and an inserted connecting port (18); the lower port part of the vertical pipe (11) is set to be in one connection form of an external thread connector (7), an internal thread connector (13) and an external insertion connector (14);

the elbow type multi-way pipe fitting include: a bent pipe (19), a vertical branch pipe (17) and a transverse main pipe (12); the bent angle of the bent pipe (19) is provided with a vertical branch pipe (17) which is communicated with the bent pipe; a transverse main pipe (12) is arranged on the vertical branch pipe (17); the transverse pipe part of the elbow pipe (19) can be provided with a vertical branch pipe (17) and communicated with the same; the mouth parts of the vertical branch pipe (17), the transverse main pipe (12) and the transverse connecting port of the bent pipe (19) are set to be one of an external thread connecting port (7), an internal thread connecting port (13) and an internal inserting connecting port (18); the lower port part of the bent pipe is set to be one of an external thread connector (7), an internal thread connector (13) and an external insertion connector (14);

the reducing multi-pass pipe spare include: the device comprises a vertical pipe (11), a conical socket part (20), a thin transverse pipe (21) and a conical connecting socket (22); the thin transverse pipe (21) is arranged on the side wall of the vertical pipe (11) and communicated with the vertical pipe; the top of the vertical pipe (11) is provided with a conical socket part (20); the side wall of the vertical pipe (11) is also provided with a conical connecting socket (22); the outer wall of the opening part of the thin transverse pipe (21) is provided with a conical connecting socket (22), and the inner wall is an internal thread connecting opening (13); the lower end connecting port of the vertical pipe (11) is set to be one of an external thread connecting port (7), an internal thread connecting port (13) and an external insertion connecting port (14).

4. The manifold member with multiple channels therein of claim 3, wherein:

when the lower port parts of the vertical pipe (11) and the bent through pipe (19) are arranged as the outer inserting connector (14), the outer wall of the outer inserting connector (14) is provided with a sealing ring groove (23) for assembling a sealing ring, and the inner wall is arranged as the inner thread connector (13) connected with the deodorization core.

5. The multiway tube member with multiple channels inside according to claim 4, wherein:

the upper parts of the lower port parts of the vertical pipe (11) and the bent through pipe (19) are also provided with inner inserting port type sealing pipe covers (24).

6. The manifold member with multiple channels therein of claim 1, wherein:

the inner channel plug-in components can be arranged at the upper end opening part of the vertical pipe (11), the upper end opening part of the vertical branch pipe (17), the connecting part of the transverse pipe part of the elbow pipe (19) and the connecting part of the transverse main pipe (12).

7. The manifold member with multiple channels therein of claim 2, wherein:

the length of the inner pipe (5) is adjustable, and the bottom end of the inner pipe exceeds the opening part of the transverse main pipe (12) or the vertical branch pipe (17) communicated with the inner pipe, so that water flowing out of the transverse main pipe (12) or the vertical branch pipe (17) is prevented from flowing back.

8. The manifold member with multiple channels therein of claim 3, wherein:

the pipe wall of the thin transverse pipe (21) is vertically provided with a conical connecting socket (22) with an upward opening; the interior of the conical connection socket (22) is provided with an internal thread connection port (13).

9. The manifold member with multiple channels therein of claim 3, wherein:

the top of the vertical pipe (11) of the reducing multi-way pipe fitting can also be of a closed structure.

10. The manifold member with multiple channels therein of claim 1, wherein:

the connecting pipe fitting includes: the pipe fitting comprises an elbow (25), a conical plug (26), a silica gel reducing plug (27), a silica gel sealing ring (28) and a fixed nut cover (29), but is not limited to the pipe fitting;

the connecting ports of the elbow (25), the conical plug (26), the silica gel reducing plug (27), the silica gel sealing ring (28) and the fixed nut cover (29) are set to be one of a male screw connecting port (7), a female screw connecting port (13), an outer inserting connecting port (14) and an inner inserting connecting port (18), but the connecting mode is not limited to the above connecting mode.

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