CN215410646U - Water pipe connecting device - Google Patents

Abstract

The utility model discloses a water pipe connecting device, and relates to the technical field of water pipe connection. The utility model comprises a connecting pipe, a sealing ring and a locking cover; a first step and a second step are sequentially arranged at the two ends of the connecting pipe from the middle part to the outside; both ends of the connecting pipe are provided with thread sections; the inner parts of the two ends of the connecting pipe are respectively connected with a water pipe body; the outer surface of one end of the sealing ring is matched with the inner wall of the first step, and the inner wall of the end is provided with a first annular limiting surface matched with the end part of the water pipe body; the sealing ring has elasticity; the peripheral side of the other end of the sealing ring is outwards expanded to form a limiting ring matched with the second step; the locking cover is an internal thread cover structure connected with the thread section; the center of the locking cover is provided with a through hole for accommodating the water pipe body to pass through. The utility model solves the problems that the existing water pipe connecting device is easy to loose in connection and not easy to disassemble, clean and filter impurities through the action of the connecting pipe, the sealing ring and the locking cover.

Description

Water pipe connecting device

Technical Field

The utility model belongs to the technical field of water pipe connection, and particularly relates to a water pipe connecting device.

Background

A water pipe connection device, also known as a water pipe joint, is a commonly used component for constructing a water pipe network, and is used for connecting a water pipe with a water pipe. The water pipe joint can be divided into: external thread end connection type water pipe joint, cutting sleeve type water pipe joint and self-fixing type water pipe joint.

The existing water pipe connecting device has the following disadvantages: firstly, the connection is not tight enough and is easy to loosen, and the sealing ring and the sealing gasket inside are easy to crush when the sealing ring and the sealing gasket are installed in a pressing mode, so that the service life of the sealing ring and the sealing gasket is influenced; secondly, be not convenient for dismantle, current water piping connection spare generally directly adopts the ring flange to fix, is more arduous when installing in dismantling, uses the inside to block up easily moreover for a long time, is not convenient for wash, also is not convenient for filter impurity.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a water pipe connecting device, which solves the problems that the existing water pipe connecting device is easy to loose in connection and difficult to disassemble, clean and filter impurities through the action of a connecting pipe, a sealing ring and a locking cover.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a water pipe connecting device, which comprises a connecting pipe, a sealing ring and a locking cover, wherein the connecting pipe is provided with a connecting hole; a first step and a second step are sequentially arranged at the two ends of the connecting pipe from the middle part to the outside; both ends of the connecting pipe are provided with thread sections; the inner parts of the two ends of the connecting pipe are respectively connected with a water pipe body; the outer surface of one end of the sealing ring is matched with the inner wall of the first step, and the inner wall of the end is provided with a first annular limiting surface matched with the end part of the water pipe body; the sealing ring has elasticity; the peripheral side of the other end of the sealing ring is outwards expanded to form a limiting ring matched with the second step; the locking cover is an internal thread cover structure connected with the thread section; the center of the locking cover is provided with a through hole for accommodating the water pipe body to pass through.

Furthermore, a second annular limiting surface matched with the end surface of the water pipe body is arranged in the middle of the first annular limiting surface; the inner diameter of the second annular limiting surface is smaller than that of the first annular limiting surface.

Furthermore, notch grooves are circumferentially distributed at pipe orifices at two ends of the connecting pipe; gaskets for fixing sealing rings are matched at pipe orifices at two ends of the connecting pipe; and the periphery of the gasket is uniformly provided with convex blocks matched with the notch grooves.

Further, after the gasket, the sealing ring and the connecting pipe are assembled in sequence, the gasket extends out of the connecting pipe; the gasket is tightly attached to the inner side face of the locking cover.

Further, fixed blocks are uniformly distributed in the middle of the inner wall of the connecting pipe; and two end faces of the fixed block are matched with a screen for filtering impurities.

Furthermore, circular table holes are symmetrically formed in two ends of the fixing block and are communicated with each other; and one side of the screen is uniformly provided with round platform bodies matched with the round platform holes.

Further, a supporting ring is assembled between the screen and the sealing ring.

The utility model has the following beneficial effects:

1. according to the utility model, the limit ring matched with the second step is formed by outwards expanding the peripheral side of the other end of the sealing ring, so that the limit ring can be more firmly installed in the connecting pipe, the contact area between the limit ring and the gasket is increased, and the limit ring is not easy to damage during pressing.

2. According to the utility model, the gasket extends out of the connecting pipe, so that the locking cover can press the gasket and the sealing ring conveniently, the tight connection is ensured, and the looseness is not easy to occur.

3. According to the utility model, the round platform bodies matched with the round platform holes are uniformly distributed on one side of the screen, so that the screen is convenient to mount and fix, the screen is not easy to loosen and rotate, and the screen can be detached and cleaned after long-time use.

4. According to the utility model, the supporting ring is arranged between the screen and the sealing ring and used for assisting in supporting the sealing ring and the water pipe body assembled on the sealing ring, so that the problem that the water pipe body is difficult to support due to the suspension of the sealing ring is avoided, and the problem that the screen is damaged due to the fact that the sealing ring is directly pressed on the screen when force is applied to installation is also avoided.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

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

FIG. 1 is an exploded view of a water pipe connection according to the present invention;

FIG. 2 is an assembled schematic view of FIG. 1;

FIG. 3 is a schematic structural diagram of a connecting tube;

FIG. 4 is a schematic view of the internal structure of the connecting tube;

FIG. 5 is a schematic structural view of a seal ring;

FIG. 6 is a schematic view of a gasket;

FIG. 7 is a schematic diagram of a screen;

in the drawings, the components represented by the respective reference numerals are listed below:

1-a water pipe body, 2-a connecting pipe, 3-a sealing ring, 4-a gasket, 5-a locking cover, 6-a screen, 7-a support ring, 201-a first step, 202-a second step, 203-a thread section, 204-a notch groove, 205-a fixed block, 206-a circular table hole, 301-a limiting ring, 302-a first annular limiting surface, 303-a second annular limiting surface, 401-a lug, 501-a through hole and 601-a circular table body.

Detailed Description

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

Example one

Referring to fig. 1-2, the present invention relates to a water pipe connection device, which includes a connection pipe 2, a sealing ring 3 and a locking cover 5; a first step 201 and a second step 202 are sequentially arranged at both ends of the connecting pipe 2 from the middle part to the outside; both ends of the connecting pipe 2 are provided with thread sections 203; the inner parts of the two ends of the connecting pipe 2 are respectively connected with a water pipe body 1; the outer surface of one end of the sealing ring 3 is matched with the inner wall of the first step 201, and the inner wall of the end is provided with a first annular limiting surface 302 matched with the end part of the water pipe body 1; the sealing ring 3 has elasticity; the peripheral side of the other end of the sealing ring 3 is outwards expanded to form a limiting ring 301 matched with the second step 202, so that the sealing ring can be more firmly installed in the connecting pipe 2, the contact area of the limiting ring 301 and the gasket 4 is increased, and the sealing ring is not easy to damage during pressing; the locking cover 5 is an internal thread cover structure connected with the thread section 203; the center of the locking cover 5 is provided with a through hole 501 for accommodating the water pipe body 1.

As shown in fig. 5, the middle of the first annular limiting surface 302 is provided with a second annular limiting surface 303 matched with the end surface of the water pipe body 1; the inner diameter of the second annular limiting surface 303 is smaller than that of the first annular limiting surface 302, so that the water pipe body 1 with a small inner diameter can be fixed.

As shown in fig. 6, notch grooves 204 are circumferentially distributed at pipe orifices at two ends of the connecting pipe 2; the pipe orifices at the two ends of the connecting pipe 2 are matched with gaskets 4 for fixing sealing rings 3; the circumferential side of the gasket 4 is uniformly provided with the convex blocks 401 matched with the notch grooves 204, so that the sealing ring 3 is not easy to loose when being pressed tightly.

As shown in fig. 1-2, after the gasket 4, the sealing ring 3 and the connecting pipe 2 are sequentially assembled, the gasket 4 extends out of the connecting pipe 2, so that the locking cover 5 can press the gasket 4 and the sealing ring 3, and the tight connection is ensured and is not easy to loosen; the gasket 4 is tightly attached to the inner side face of the locking cover 5, so that the gasket is convenient to compress.

Example two

On the basis of the first embodiment, as shown in fig. 1-2, the fixing blocks 205 are uniformly distributed in the middle of the inner wall of the connecting pipe 2; both end faces of the fixing block 205 are matched with a screen 6 for filtering impurities, so that the impurities are prevented from flowing into a target position.

As shown in fig. 1 and 7, circular platform holes 206 are symmetrically formed at both ends of the fixing block 205 and are communicated with each other; the round platform body 601 matched with the round platform hole 206 is uniformly distributed on one side of the screen 6, so that the screen 6 is convenient to install and fix, the screen 6 is not easy to loosen and rotate, and the screen 6 can be detached to be cleaned after being used for a long time.

As shown in fig. 1-2, a support ring 7 is assembled between the screen 6 and the seal ring 3 for assisting in supporting the seal ring 3 and the water pipe body 1 assembled on the seal ring 3, so as to prevent the seal ring 3 from suspending and being difficult to support the water pipe body 1, and prevent the seal ring 3 from being directly pressed on the screen 6 to damage the screen 6 when the installation is forced.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not exhaustive and do not limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand the utility model for and utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims (7)

1. A water pipe connecting device is characterized in that: comprises that

The connecting pipe comprises a connecting pipe (2), wherein a first step (201) and a second step (202) are sequentially arranged at two ends of the connecting pipe (2) from the middle part to the outside;

both ends of the connecting pipe (2) are provided with threaded sections (203);

the inner parts of two ends of the connecting pipe (2) are respectively connected with a water pipe body (1);

the outer surface of one end of the sealing ring (3) is matched with the inner wall of the first step (201), and the inner wall of the end of the sealing ring (3) is provided with a first annular limiting surface (302) matched with the end part of the water pipe body (1); the peripheral side of the other end of the sealing ring (3) is outwards expanded to form a limiting ring (301) matched with the second step (202);

the sealing ring (3) has elasticity;

the locking cover (5), the locking cover (5) is an internal thread cover structure connected with the thread section (203); the center of the locking cover (5) is provided with a through hole (501) for accommodating the water pipe body (1) to pass through.

2. The water pipe connecting device according to claim 1, wherein a second annular limiting surface (303) matched with the end surface of the water pipe body (1) is arranged in the middle of the first annular limiting surface (302); the inner diameter of the second annular limiting surface (303) is smaller than that of the first annular limiting surface (302).

3. A water pipe connection device according to claim 1 or 2, wherein the pipe openings at both ends of the connection pipe (2) are circumferentially distributed with gap grooves (204);

the pipe orifices at the two ends of the connecting pipe (2) are matched with gaskets (4) for fixing the sealing rings (3); and convex blocks (401) matched with the notch grooves (204) are uniformly distributed on the periphery of the gasket (4).

4. A water pipe connection according to claim 3, wherein after the gasket (4), the sealing ring (3) and the connecting pipe (2) are assembled in sequence, the gasket (4) extends out of the connecting pipe (2); the gasket (4) is tightly attached to the inner side surface of the locking cover (5).

5. A water pipe connection device according to claim 1 or 4, characterized in that the fixing blocks (205) are uniformly distributed in the middle of the inner wall of the connecting pipe (2); two end faces of the fixing block (205) are matched with a screen (6) for filtering impurities.

6. The water pipe connecting device according to claim 5, wherein the two ends of the fixing block (205) are symmetrically provided with circular truncated cone holes (206) and communicated with each other;

and one side of the screen (6) is uniformly provided with a circular truncated cone body (601) matched with the circular truncated cone hole (206).

7. A water pipe connection according to claim 5, characterized in that a support ring (7) is fitted between the screen (6) and the sealing ring (3).

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