WO2020001029A1

WO2020001029A1 - Outer seal connection pipe fitting and pipeline

Info

Publication number: WO2020001029A1
Application number: PCT/CN2019/074285
Authority: WO
Inventors: 曹慧剑; 刁振彬; 林细勇; 程佳佳; 汪辉; 何旺枝; 付秀丽; 谢勇
Original assignee: 日丰企业（佛山）有限公司; 日丰企业集团有限公司; 日丰科技有限公司
Priority date: 2018-06-27
Filing date: 2019-01-31
Publication date: 2020-01-02
Also published as: CN108709037B; CN108709037A

Abstract

An outer seal connection pipe fitting and a pipeline. The outer seal connection pipe fitting comprises a pipe fitting body (100) comprising a transparent inner core (110) and a protective layer (120) provided on the transparent inner core (110), wherein the transparent inner core (110) is provided with a mounting hole (111) comprising a first access port (1111), and the inner wall of the transparent inner core (110) is further provided with a first clamping position (112) spaced apart from the first access port (111); and a first housing cover (200) sleeved on the pipe fitting body (100) and provided with a first observation hole (210) used for observing the position relationship between a pipe material and the first clamping position (112), wherein the protective layer (120) is used for preventing external light from entering the mounting hole (111). In the outer seal connection pipe fitting and the pipeline, because the transparent inner core is made of a transparent or semitransparent material and does not hinder mounting personnel from observing the structure in the mounting hole by means of the first observation hole, when the pipe material is inserted into the pipe fitting body, the mounting personnel can visually see whether the pipe materials is inserted into the clamping position by means of the first observation hole in the first housing cover.

Description

Externally sealed connection fittings and pipes

Technical field

The invention relates to the technical field of pipeline connection, in particular to an externally sealed connection pipe and a pipeline.

Background technique

A type of quick-plug outer sealing pipe that has been widely used. This connection method has the advantages of convenient installation, fast speed and large flow, but also has its unavoidable disadvantages: when the pipe is inserted into the inner hole of the connecting pipe, because the inside of the pipe cannot be observed, it is impossible to judge whether the pipe is Has been inserted in place, often the installer must mark the pipe to determine whether the pipe has been inserted. When sunlight irradiates the pipe system, if light shines on the water, a small amount of algae microorganisms in the water will produce photosynthetic use, breed and grow, and eventually lead to water pollution and affect sanitation performance, so the connecting pipe cannot be designed to be transparent.

Summary of the invention

Based on this, it is necessary to provide an externally sealed connecting pipe fitting, which can intuitively determine whether the pipe has been inserted into place and ensure the connection is safe and reliable.

Its technical scheme is as follows:

An externally sealed connection pipe includes a pipe body, the pipe body includes a transparent inner core, and a protective layer disposed on the transparent inner core, the transparent inner core is provided with a mounting hole including a first access port, The inner wall of the transparent inner core is further provided with a first snap-in position spaced from the first access port; and a first shell sleeve, the first shell sleeve is sleeved on the pipe body, and The first casing is provided with a first observation hole for observing the positional relationship between the pipe and the first snap-in position; wherein the protective layer is used to prevent outside light from entering the mounting hole.

In the above-mentioned outer sealed connection pipe fittings, since the transparent inner core is a transparent or translucent material, it does not prevent the installer from viewing the structure in the installation hole through the first observation hole. In this way, when the pipe is inserted into the body of the pipe fitting, the installer Intuitively see whether the pipe has been inserted into the snap-in position through the first observation hole on the first housing sleeve, thereby effectively reducing the risk of leakage caused by the pipe not being inserted in place. Moreover, by covering a transparent protective layer on the transparent core, it is possible to effectively prevent external light from entering the mounting holes and prevent light from reaching the water in the pipeline, thereby preventing water quality from being polluted.

The technical solution is further described below:

Further, the first housing sleeve is rotatably sleeved on the pipe body, the protective layer is provided with a first perspective hole, and the first housing sleeve includes a first installation position and a second installation position, When the first casing is in the first installation position, the first observation hole is opposite to the first perspective hole. When the first casing is in the second installation position, the first An observation hole is staggered from the first see-through hole.

Further, the outer seal connection pipe fitting further includes a seal ring, a seal groove is provided on an inner wall of the pipe body, the seal ring is arranged in the seal groove, and an inner wall of the seal ring is used for communicating with the The tube is tightly fitted.

Further, the outer sealing connection pipe further includes a snap ring, and the first housing sleeve is further provided with an inner hole communicating with the mounting hole, and the snap ring is disposed in the mounting hole or the inner hole. And located on a side of the first snap-in position close to the first access port, a tooth is provided on the snap ring, and the tooth extends toward the first snap-in position and faces the card The center of the ring is inclined.

Further, the outer sealing connection pipe fitting further includes a washer, the washer is disposed in the installation hole or the inner hole, and is located on a side of the snap ring near the first snap-in position, the The washer includes a first opening and a second opening opposite to the first opening, and the first opening is opposite to the snap ring. An inner ring diameter of the washer extends from the first opening to the second opening. The direction of the opening is decreasing. When the pipe is inserted into the body of the pipe, the teeth and the inner wall of the gasket abut and cooperate.

Further, the externally sealed connection pipe fitting further includes a pipe taking sleeve passing through the first housing sleeve, and an inner cavity of the pipe taking sleeve communicates with the installation hole, and the pipe taking sleeve A pressing surface is provided on an end of the cylinder far from the first clamping position.

Further, the externally sealed connecting pipe fitting further includes an inner bushing disposed in the mounting hole, one end of the inner bushing is in abutment with the first engaging position, and the inner bushing is in contact with the A mounting gap is provided between the pipe body.

Further, the externally sealed connection pipe fitting further includes a second shell sleeve, the first shell sleeve is sleeved on one end of the transparent inner core, and the second shell sleeve is sleeved on the other end of the transparent inner core. The mounting hole further includes a second access port opposite to the first access port, and an inner wall of the transparent inner core is further provided with a second snap-in position spaced from the second access port, and the The second snap-in position is located on the side of the first snap-in position close to the second access port, and a second observation hole for observing the positional relationship between the pipe and the second snap-in position is provided on the second housing sleeve. .

Further, the second housing sleeve is rotatably sleeved on the pipe body, and the protective layer is further provided with a second perspective hole. The second housing sleeve includes a third installation position and a fourth installation position. When the second housing sleeve is in the third installation position, the second observation hole is opposite to the second see-through hole, and when the second housing sleeve is in the fourth installation position, the The second observation hole is staggered from the second see-through hole.

The technical solution also provides a pipeline, including the externally sealed connecting pipe fitting as described above.

In the above pipeline, since the transparent inner core is a transparent or translucent material, it does not prevent the installer from viewing the structure in the installation hole through the first observation hole. In this way, when the pipe is inserted into the body of the pipe, the installer can intuitively pass The first observation hole on the first housing sleeve sees whether the pipe has been inserted into the snap-in position, thereby effectively reducing the risk of leakage caused by the pipe not being inserted in place. Moreover, by covering a transparent protective layer on the transparent inner core, it is possible to effectively prevent external light from entering the mounting holes, prevent light from reaching the water in the pipeline, and thereby prevent water quality from being polluted.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic structural diagram of an externally sealed connecting pipe according to an embodiment of the present invention;

FIG. 2 is an exploded structural schematic diagram of an outer sealing connection pipe according to an embodiment of the present invention; FIG.

3 is a schematic exploded perspective structural view of an externally sealed connection pipe according to an embodiment of the present invention;

4 is a functional structure diagram of an externally sealed connecting pipe according to an embodiment of the present invention;

FIG. 5 is a functional perspective structural schematic diagram of an externally sealed connecting pipe according to an embodiment of the present invention.

Reference sign description:

10, pipe, 100, pipe body, 110, transparent core, 111, mounting hole, 1111, first access port, 1112, second access port, 112, first snap-in position, 113, sealing groove, 114, first Two snap-in positions, 120, protective layer, 121, first perspective hole, 130, strip buckle, 200, first housing sleeve, 210, first observation hole, 220, inner hole, 230, strip card slot, 300, sealing ring, 400, snap ring, 410, tooth, 500, washer, 510, first opening, 520, second opening, 600, tube taking sleeve, 610, pressing surface, 700, inner bushing, 800 , A second housing sleeve, 810, a second observation hole.

detailed description

To make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not limit the protection scope of the present invention.

It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be a centered element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not meant to be the only implementations.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

The terms “first” and “second” in the present invention do not represent a specific quantity and order, but are only used to distinguish names.

As shown in FIG. 1, an externally sealed connection pipe according to an embodiment includes a pipe body 100 and a first outer casing 200. The pipe body 100 includes a transparent inner core 110 and a protective layer disposed on the transparent inner core 110. 120, the transparent inner core 110 is provided with a mounting hole 111 including a first access port 1111, and the inner wall of the transparent inner core 110 is also provided with a first snap-in position 112 spaced from the first access port 1111; a first housing sleeve 200 sets are disposed on the transparent inner core 110, and the first outer case 200 is provided with a first observation hole 210 for observing the positional relationship between the pipe 10 and the first snap-in position 112.

Optionally, the transparent inner core 110 is injection-molded from a transparent or translucent material, and the transparent inner core 110 is cylindrical. The first latching position 112 is an annular protrusion provided on the inner wall of the transparent inner core 110, and the pipe 10 It can be inserted into the mounting hole 111 of the transparent inner core 110 through the first access port 1111 and abut against the first card connection position 112. When the pipe 10 is in contact with the first snap-in position 112, due to the sealing effect of the pipe 10 and the first snap-in position 112, water can be effectively prevented from flowing out of the gap between the pipe 10 and the transparent inner core 110, thereby avoiding leakage.

The protective layer 120 is used to prevent outside light from entering the mounting hole 111. In the pipeline system, when sunlight illuminates the pipeline and the light shines on the water, a small amount of algae and microorganisms in the water will be used for photosynthesis, breed and grow, and eventually lead to water pollution. By covering the transparent core 110 with a layer of protection The layer 120 can effectively prevent outside light from entering the installation hole 111, prevent light from shining on the water in the pipeline, and thereby prevent water quality from being polluted.

Optionally, the protective layer 120 is an opaque plastic layer or a metal layer. Specifically, the protective layer 120 is an opaque plastic layer. The pipe body 100 is made by a two-shot injection molding process. The transparent inner core 110 inside is made of a transparent material, and the protective layer 120 is made by a second injection. The pipe body 100 of this structure is convenient to manufacture and low in cost.

In one embodiment, a buckle (slot) is provided on an inner wall of one end of the first housing sleeve 200, and a buckle (snap) is provided on an outer wall of the pipe body 100, and the buckle and the buckle are connected to each other. In this way, the first housing sleeve 200 is connected to the pipe body 100, which facilitates the installation of the outer sealed connection pipe.

In the above-mentioned externally sealed connecting pipe fittings, since the transparent inner core 110 is a transparent or translucent material, it does not prevent the installer from viewing the structure in the installation hole 111 through the first observation hole 210. Thus, when the pipe 10 is inserted into the pipe body 100 At this time, the installer can intuitively see whether the pipe 10 has been inserted into the snap-in position through the first observation hole 210 on the first housing sleeve 200, thereby effectively reducing the risk of leakage caused by the pipe 10 not being inserted in place. Moreover, since the transparent inner core 110 is sleeved on the pipe 10, the pipe 10 can be prevented from directly contacting the external environment and being polluted by the external environment. Furthermore, by covering a layer of protection 120 on the transparent inner core 110, it is possible to effectively prevent external light from entering the installation hole 111, prevent light from reaching the water in the pipeline, and thereby prevent water quality from being polluted.

As shown in Fig. 2-3, further, the first casing sleeve 200 is rotatably sleeved on the pipe body 100, the protective layer 120 is provided with a first perspective hole 121, and the first casing sleeve 200 includes a first installation position And the second installation position, when the first housing cover 200 is in the first installation position, the first observation hole 210 is opposite to the first perspective hole 121, and when the first housing cover 200 is in the second installation position, the first observation hole 210 Staggered from the first perspective hole 121.

Specifically, a strip-shaped buckle 130 is provided on the outside of the pipe body 100, and an inner hole 220 of the first housing sleeve 200 is provided with a strip-shaped groove 230 corresponding to the strip-shaped buckle 130. When performing the intubation operation, the first A housing sleeve 200 is in a first installation position, so that the first observation hole 210 is opposite to the first perspective hole 121, so that an operator can observe the inside of the installation hole 111 through the first observation hole 210. After completing the intubation operation, rotate the first The housing cover 200, and the strip-shaped buckle 130 is snapped into the strip-shaped slot 230, so that the first observation hole 210 is closed, thereby preventing light from entering the pipe body through the first perspective hole 121 and the first observation hole 210 100 internal, to avoid water pollution.

Please continue to refer to FIGS. 1-3. In one embodiment, the outer sealing connection pipe further includes a seal ring 300. The inner wall of the pipe body 100 is provided with a seal groove 113. The seal ring 300 is disposed in the seal groove 113. The inner wall is used for sealing fit with the pipe 10. In this way, the sealing effect between the pipe 10 and the pipe body 100 can be increased, and a leakage phenomenon can be avoided.

Specifically, the outer wall of the seal ring 300 is tightly fitted with the seal groove 113. When the pipe 10 is inserted into the pipe body 100, the inner wall of the seal ring 300 is tightly fitted with the pipe 10. Traditionally, the seal ring 300 is disposed on the inner bushing 700. The inner wall of the seal ring 300 is tightly fitted with the inner bushing 700, and the outer wall of the seal ring 300 is tightly fitted with the pipe 10. Compared with the conventional design manner of the seal ring 300, in this embodiment, the arrangement of the inner liner 700 can be eliminated, thereby increasing the water flow in the pipeline.

In one embodiment, the outer sealing connection pipe further includes a snap ring 400. The first housing sleeve 200 is further provided with an inner hole 220 communicating with the mounting hole 111. The snap ring 400 is disposed in the mounting hole 111 or the inner hole 220, and Located on a side of the first snap-in position 112 near the first access port 1111, a tooth 410 is provided on the snap ring 400. The tooth 410 extends toward the first snap-in position 112 and is inclined toward the center of the snap ring 400. In this way, when the pipe 10 lifts the teeth 410 and is inserted into the pipe body 100, the teeth 410 are deformed and tightly contact the pipe 10 to prevent the pipe 10 from slipping off.

Further, the outer sealing connection pipe further includes a washer 500, which is disposed in the mounting hole 111 or the inner hole 220 and is located on a side of the snap ring 400 near the first snap-in position 112. The washer 500 includes a first opening 510, and A second opening 520 opposite to the first opening 510 and the first opening 510 is opposite to the snap ring 400. The inner ring diameter of the washer 500 decreases in a direction from the first opening 510 to the second opening 520. In this way, when the pipe 10 is inserted into the pipe body 100, the teeth 410 abut on the inner wall of the washer 500, and the inner wall of the washer 500 can avoid the teeth caused by the excessive expansion of the teeth 410 during the process of the pipe 10 pushing away the teeth 410. The tooth 410 is damaged or the elastic force weakens, which prolongs the service life of the snap ring 400.

In one embodiment, the outer sealing connection pipe further includes a pipe taking sleeve 600 passing through the first housing sleeve 200, and the inner cavity of the pipe taking sleeve 600 communicates with the mounting hole 111, and the pipe taking sleeve 600 is away from A pressing surface 610 is provided at one end of the first engaging position 112. In this way, when the pipe 10 is removed, the operator can press the pressing surface 610 to facilitate the removal.

Specifically, the inner wall of the first housing sleeve 200 is provided with a clamping slot, one end of the tube taking sleeve 600 is provided with a buckle, the clip is connected with the card slot, and the other end of the tube taking sleeve 600 is provided with a pressing surface 610. . In this way, a fixed connection between the tube taking sleeve 600 and the first housing sleeve 200 can be achieved.

More specifically, a U-shaped groove is also provided on the end of the pipe-taking sleeve 600 near the buckle. When the pipe-taking sleeve 600 is installed, two opposite side walls of the U-shaped groove can be contracted with each other, so that the pipe-taking sleeve The outer diameter of the barrel 600 is reduced, which facilitates the installation of the tube taking sleeve 600.

In one embodiment, the outer sealing connection pipe fitting further includes an inner bushing 700 disposed in the mounting hole 111, one end of the inner bushing 700 abuts against the first snap-in position 112, and the inner bushing 700 and the pipe body 100 There is a mounting gap between them. Specifically, when the pipe 10 is a soft material, by inserting the pipe 10 into the installation gap, the inner wall of the pipe 10 can interfere with the inner bushing 700, so that the port of the pipe 10 can be kept round, and the pipe 10 and the Sealing performance between the pipe body 100.

In one embodiment, the outer sealing connection pipe further includes a second outer casing 800, the first outer casing 200 is disposed on one end of the transparent inner core 110, and the second outer casing 800 is disposed on the other end of the transparent inner core 110. The mounting hole 111 further includes a second access port 1112 opposite to the first access port 1111, and the inner wall of the transparent core 110 is further provided with a second snap-in position 114 spaced from the second access port 1112, and the second The snap-in position 114 is located on the side of the first snap-in position 112 near the second access port 1112. The second housing sleeve 800 is provided with a second observation hole 810 for observing the positional relationship between the pipe and the second snap-in position 114.

Further, the second casing sleeve 800 is rotatably sleeved on the pipe body 100, and the protective layer 120 is also provided with a second perspective hole. The second casing sleeve 800 includes a third installation position and a fourth installation position. When the casing 800 is in the third installation position, the second observation hole 810 is opposite to the second perspective hole. When the casing 2 is in the fourth installation position, the second observation hole 810 is staggered from the second perspective hole.

It should be noted that the structure of the second casing 800 is the same as that of the first casing 200, and the pipe body 100 has a symmetrical structure. In this way, both ends of the outer sealing connection pipe can be connected to the pipe 10 in the same manner.

As shown in FIG. 4, it can be seen from the second observation hole 810 that the upper pipe 10 has been inserted into place, and it can be seen from the first observation hole 210 that the lower pipe 10 has not been inserted into place, so that an intuitive judgment can be made.

As shown in FIG. 5, when the pipe is completely connected with the externally sealed connection pipe, the first housing sleeve 200 can be rotated to close the first observation hole 210 so as to prevent light from entering the inside of the pipe.

An embodiment also provides a pipe including the outer sealed connection pipe as described above.

In the above pipeline, since the transparent inner core 110 is a transparent or translucent structure, it does not prevent the installer from viewing the structure in the installation hole 111 through the first observation hole 210. In this way, when the pipe 10 is inserted into the pipe body 100, the installation A person can intuitively see whether the pipe 10 has been inserted into the snap-in position through the first observation hole 210 on the first housing sleeve 200, thereby effectively reducing the risk of leakage caused by the pipe 10 being inserted in place. Moreover, since the transparent inner core 110 is sleeved on the pipe 10, the pipe 10 can be prevented from directly contacting the external environment and being polluted by the external environment. Furthermore, by covering a layer of protection 120 on the transparent inner core 110, it is possible to effectively prevent external light from entering the installation hole 111, prevent light from reaching the water in the pipeline, and thereby prevent water quality from being polluted.

The technical features of the embodiments described above can be arbitrarily combined. In order to make the description concise, all possible combinations of the technical features in the above embodiments have not been described. However, as long as there is no contradiction in the combination of these technical features, It should be considered as the scope described in this specification.

The above-mentioned embodiment only expresses several implementation manners of the present invention, and the description thereof is more specific and detailed, but it cannot be understood as a limitation on the scope of the invention patent. It should be noted that, for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent shall be subject to the appended claims.

Claims

An externally sealed connection pipe is characterized in that it includes:

A pipe body comprising a transparent inner core and a protective layer disposed on the transparent inner core, the transparent inner core is provided with a mounting hole including a first access port, and an inner wall of the transparent inner core is provided A first card connection space is provided at a distance from the first access port; and

A first casing sleeve, the first casing sleeve is sleeved on the pipe body, and the first casing sleeve is provided with a first observation hole for observing the positional relationship between the pipe and the first snap-in position;

The protective layer is used to prevent external light from entering the mounting hole.
The externally sealed connecting pipe fitting according to claim 1, wherein the first housing sleeve is rotatably sleeved on the pipe fitting body, the protective layer is provided with a first perspective hole, and the first The housing cover includes a first installation position and a second installation position. When the first housing cover is in the first installation position, the first observation hole is opposite to the first perspective hole. When the sleeve is in the second installation position, the first observation hole and the first see-through hole are staggered.
The externally sealed connection pipe according to claim 1 or 2, further comprising a seal ring, a seal groove is provided on an inner wall of the pipe body, and the seal ring is provided in the seal groove, and the seal The inner wall of the ring is used for sealing fit with the pipe.
The externally sealed connection pipe according to claim 1 or 2, further comprising a snap ring, the first housing sleeve is further provided with an inner hole communicating with the mounting hole, and the snap ring is provided on the The mounting hole or the inner hole is located on a side of the first snap-in position near the first access port, and a tooth is provided on the snap ring, and the tooth faces the first snap-in. The position extends and is inclined toward the center of the snap ring.
The externally sealed connection pipe according to claim 4, further comprising a washer, the washer being disposed in the mounting hole or the inner hole and located at the snap ring near the first snap-in position On one side, the gasket includes a first opening and a second opening opposite to the first opening, and the first opening is opposite to the snap ring, and an inner ring diameter of the gasket is along the first The direction from the opening to the second opening shows a decreasing trend. When the pipe is inserted into the body of the pipe, the teeth and the inner wall of the gasket abut and cooperate.
The externally sealed connecting pipe fitting according to claim 1 or 2, further comprising a pipe taking sleeve passing through the first housing sleeve, and an inner cavity of the pipe taking sleeve and the installation The holes are in communication, and a pressing surface is provided on an end of the tube taking sleeve far from the first clamping position.
The externally sealed connection pipe according to claim 1 or 2, further comprising an inner bushing disposed in the mounting hole, and one end of the inner bushing abuts against the first snap-in position, An installation gap is provided between the inner liner and the pipe body.
The externally sealed connection pipe according to claim 1 or 2, further comprising a second shell sleeve, the first shell sleeve is sleeved on one end of the transparent inner core, and the second shell sleeve is sleeved on At the other end of the transparent inner core, the mounting hole further includes a second access port opposite to the first access port, and an inner wall of the transparent inner core is further provided with a first spaced apart from the second access port. Two card-connecting positions, and the second card-connecting position is located on the side of the first card-connecting position near the second access port, and the second casing is provided with an observation tube for connecting with the second card Bit position relationship of the second observation hole.
The externally sealed connection pipe according to claim 8, wherein the second housing sleeve is rotatably sleeved on the pipe body, and the protective layer is further provided with a second perspective hole, and the first The two casing covers include a third mounting position and a fourth mounting position. When the second casing cover is in the third mounting position, the second observation hole is opposite to the second perspective hole. When the casing is in the fourth installation position, the second observation hole is staggered from the second see-through hole.
A pipeline, comprising the externally sealed connecting pipe fitting according to any one of claims 1-9.