CN112628487A - Hot melt pipe joint and water pipe joint device - Google Patents

Abstract

The invention discloses a hot melt pipe joint, which comprises a joint body and at least one joint component; the joint assembly comprises a hot melting piece and a positioning piece; the positioning piece is arranged on the inner side of the hot melting piece to socket and position the pipe fitting connected with the joint component; the joint assembly is in hot melt sealing connection with the pipe fitting through the hot melt piece. Simultaneously, the water pipe joint device with the hot-melt pipe joint is also provided. By adopting the technical scheme of the invention, the structure of the hot melting pipe is changed, so that the hot melting part of the hot melting pipe joint and the pipe fitting can be quickly and accurately positioned and connected in the installation process, the operation difficulty is reduced, the yield after hot melting is ensured, and the water leakage rate of the hot melting pipe welding is reduced.

Description

Hot melt pipe joint and water pipe joint device

Technical Field

The invention belongs to the field of bathrooms, relates to the technical field of hot melt pipe installation, and particularly relates to a hot melt pipe joint and a water pipe joint device.

Background

In the current bathroom field, in the constitution of water route, the fixed connection of coupling and pipe fitting still generally adopts the cementing, nevertheless because the material of glue and pipe fitting is different, and both receive the shrink of cold and hot water and the degree of inflation also is different, and the pipe fitting leads to sealed inefficacy, leaking with the glue sealing connection of coupling, receives the influence of cold and hot water easily. In the prior art, the sealing connection between the joint made of the same material and the water pipe can be realized by adopting a hot melting mode. However, in the process of hot-melting connection of the pipe joint and the pipe fitting, the hot-melting part of the pipe joint and the hot-melting part of the pipe fitting need to be accurately butted to ensure the sealing effect after hot melting, otherwise, water is easy to leak, so that the sealing is failed, or the installation is inclined, so that the appearance and the installation effect are influenced; therefore, the requirements for the hot-melt connection, for positioning the pipe joints and the pipe fittings are very high, and if not professional personnel, the operation is difficult to ensure, and waste products or reworking are easy to occur.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems in the prior art, the invention provides a novel hot-melt pipe joint, which can improve the accurate positioning of the hot-melt pipe joint and the hot-melt part of a pipe fitting, reduce the operation difficulty and ensure the yield after hot melting, and in order to achieve the purpose, the invention adopts the following technical scheme:

a hot melt pipe joint comprises a joint body and at least one joint component; the joint assembly comprises a hot melting piece and a positioning piece; the positioning piece is arranged on the inner side of the hot melting piece to socket and position the pipe fitting connected with the joint component; the joint assembly is in hot melt sealing connection with the pipe fitting through the hot melt piece.

Preferably, the positioning piece is a positioning inner tube, and one end of the positioning inner tube is fixedly connected with the joint body to form a fixed end; the other end of the positioning inner pipe forms a free end so as to guide the pipe fitting to be inserted into the positioning inner pipe.

Preferably, the outer diameter of the free end of the positioning inner tube is smaller than the outer diameter of the fixed end corresponding to the free end of the positioning inner tube.

Preferably, the joint assembly further comprises a sealing ring, and the sealing ring is arranged on the positioning inner pipe.

Preferably, the outer edge surface of the positioning inner pipe is provided with an external thread to install the pipe fitting in a thread guide way.

Preferably, the positioning pieces are a plurality of positioning protrusions; the positioning protrusion is fixedly connected with the joint body.

Preferably, the joint body, the hot melting piece and the positioning piece are integrally formed.

The invention also provides a water pipe joint device, which comprises the hot-melting pipe joint of any one of the pipe fittings; the pipe fitting is fixedly connected with the hot melt pipe joint in a sealing manner through hot melt after being quickly inserted and positioned.

As can be seen from the above description of the present invention, the present invention has the following advantages over the prior art:

(1) by adopting the technical scheme of the invention, the positioning piece is arranged at the inner side of the hot melting piece of the hot melting pipe joint, and the pipe fitting is positioned by utilizing the positioning piece so as to limit the hot melting part of the pipe fitting and the hot melting piece of the hot melting pipe joint at a specific position, so that the butt joint position of the hot melting part and the hot melting part is not required to be determined in the butt-inserting installation process of the pipe fitting and the hot melting pipe joint, thereby realizing the quick positioning of the hot melting part, reducing the operation difficulty and ensuring the finished product rate and the rework rate after hot melting;

(2) the positioning piece adopts a positioning inner tube formed in the joint, the fixed end of the positioning inner tube is connected with the joint body, the free end can extend out of the hot melting piece of the joint component, so that the inner tube socket pipe fitting can be positioned conveniently, and the hot melting part of the pipe fitting is quickly guided to be connected with the hot melting piece in a positioning mode that the positioning inner tube is inserted into the pipe fitting;

(3) the outer diameter of the free end of the positioning inner pipe is smaller than that of the fixed end, so that the outer edge surface of the positioning inner pipe forms a wedge shape, and the insertion positioning is convenient;

(4) the joint assembly is provided with a sealing ring, the sealing ring is arranged on the positioning inner pipe, the sealing ring forms a second seal for the hot-melted joint and the pipe fitting, and good sealing is ensured after hot-melted sealing is realized;

(5) the outer fringe face of location inner tube is equipped with the external screw thread, and when the pipe fitting also set up the internal thread, external screw thread and internal thread mutually supported, are convenient for guide pipe fitting screw in hot melt coupling, and the interference fit degree between increase pipe fitting hot melt portion and the hot melt piece ensures the sealed effect of hot melt.

Drawings

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

Fig. 1 is a perspective view of a water pipe joint device according to embodiment 1 of the present invention.

Fig. 2 is an exploded view of the water pipe joint device of example 1.

Fig. 3 is a sectional view of a water pipe joint device according to embodiment 1.

FIG. 4 is a perspective view of a thermal fusion pipe joint according to embodiment 2.

FIG. 5 is a perspective view of a thermal fusion pipe joint according to embodiment 3.

Wherein, 1 is the joint body, 2 is the joint subassembly, 3 is the hot melt spare, 4 is the hot melt inner tube, 5 is the sealing washer, 6 is the straight tube.

Detailed Description

The technical solution 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. It is to be understood that the described embodiments are presently preferred embodiments of the invention and are not to be taken as an exclusion of other embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, the terms "first", "second" or "third", etc. are used for distinguishing between different items and not for describing a particular sequence.

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, all directional or positional relationships indicated by the terms "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," "counterclockwise," and the like are based on the directional or positional relationships indicated in the drawings and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element so indicated must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention.

In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the terms "fixedly connected" or "fixedly connected" should be interpreted broadly, that is, any connection between the two that does not have a relative rotational or translational relationship, that is, non-detachably fixed, integrally connected, and fixedly connected by other devices or elements.

In the claims, the specification and the drawings of the present invention, the terms "including", "having" and their variants, if used, are intended to be inclusive and not limiting.

Example 1.

Referring to fig. 1 to 3, the present embodiment provides a water pipe joint device including a heat fusible pipe joint and a pipe member. Wherein, hot melt coupling includes joint body 1 and connects two joint Assembly 2 at joint body 1 both ends. Each joint assembly 2 comprises a hot melt 3, a positioning member and a sealing ring 5.

In this embodiment, the positioning member is a positioning inner tube 4 disposed inside the hot melt member 3. The joint body 1, the hot melt piece 3 and the positioning inner tube 4 are integrally formed. One end of the positioning inner tube 4 is fixedly connected with the joint body 1 to form a fixed end, and the other end of the positioning inner tube forms a free end. The positioning inner tube 4, the joint body 1 and the hot melting piece 3 jointly enclose an annular cavity. A sealing groove is formed in the outer edge surface of one side, close to the free end, of the positioning inner tube 4, and the sealing ring 5 is assembled in the sealing groove.

In this embodiment, the pipe fitting connected to the heat-fusible pipe joint in an adaptive manner is a straight pipe 6. The straight pipe 6 is provided with a hot melting part which is positioned at the position where the straight pipe 6 is inserted into the annular concave cavity to be matched.

During the water pipe head device hot melt installation of this embodiment, only need let 6 one ends of straight tube insert on location inner tube 4 to remove along location inner tube 4, make the hot melt portion on the straight tube 6 enter into annular cavity, can realize the hot melt position location of straight tube 6 and hot melt coupling. After the straight pipe 6 and the hot-melting pipe joint are spliced and positioned, the straight pipe can be directly placed on a hot-melting device for heating and hot melting, and the hot-melting sealing and fixing connection of the straight pipe 6 and the hot-melting pipe joint can be quickly realized. Therefore, the water pipe joint device of the embodiment does not need to determine the butt joint position of the hot melting part in the installation process, so that the hot melting part can be quickly positioned, the operation difficulty is reduced, and the yield after hot melting is ensured.

In other embodiments, the outer diameter of the free end of the positioning inner tube 4 is smaller than the outer diameter of the fixed end corresponding to the free end, so that the outer edge surface of the positioning inner tube 4 forms a wedge shape, and the insertion and positioning of the hot melting part of the straight tube 6 are facilitated.

In other embodiments, the outer edge surface of the inner positioning tube 4 can be provided with external threads, correspondingly, the straight tube 6 connected with the inner positioning tube is provided with internal threads, when the straight tube 6 is connected with the hot melt tube connector, the hot melt part of the straight tube 6 is screwed into the inner side of the hot melt piece 3 of the connector component 2 through the thread rotation guide between the internal threads of the straight tube 6 and the external threads of the inner positioning tube 4, particularly, when the hot melt part and the hot melt piece 3 are in interference fit, the thread guide mode can improve the tight fit degree of the hot melt part and the hot melt piece 3, and the hot melt sealing effect of hot melt is better.

In other embodiments, the thermofusion pipe joint may have other forms, the joint assemblies 2 are not limited to 2, and each joint assembly 2 may not be arranged coaxially. For example, referring to fig. 4 to 5, in embodiment 2, the included angle of the axes of the two joint components 2 of the thermofusion pipe joint is 90 °; in embodiment 3, the heat-fusible pipe joint has three joint assemblies 2, and a special pipe joint is made as required.

The description of the above specification and examples is intended to be illustrative of the scope of the present invention and is not intended to be limiting. Modifications, equivalents and other improvements which may occur to those skilled in the art and which may be made to the embodiments of the invention or portions thereof through a reasonable analysis, inference or limited experimentation, in light of the common general knowledge, the common general knowledge in the art and/or the prior art, are intended to be within the scope of the invention.

Claims (8)

1. A hot melt coupling, its characterized in that: comprises a joint body and at least one joint component;

the joint assembly comprises a hot melting piece and a positioning piece; the positioning piece is arranged on the inner side of the hot melting piece to socket and position the pipe fitting connected with the joint component;

the joint assembly is in hot melt sealing connection with the pipe fitting through the hot melt piece.

2. The thermal fusion pipe joint as set forth in claim 1, wherein: the positioning piece is a positioning inner tube, and one end of the positioning inner tube is fixedly connected with the joint body to form a fixed end; the other end of the positioning inner pipe forms a free end so as to guide the pipe fitting to be inserted into the positioning inner pipe.

3. A thermo-fusion pipe joint as defined in claim 2, wherein: the outer diameter of the free end of the positioning inner tube is smaller than that of the fixed end corresponding to the positioning inner tube.

4. A thermo-fusion pipe joint as defined in claim 2, wherein: the joint component further comprises a sealing ring, and the sealing ring is arranged on the positioning inner pipe.

5. A thermofuseable pipe fitting according to claim 2, wherein the outer peripheral surface of said inner positioning pipe is externally threaded for threaded guided installation of said pipe elements.

6. The thermal fusion pipe joint as set forth in claim 1, wherein: the positioning pieces are a plurality of positioning bulges; the positioning protrusion is fixedly connected with the joint body.

7. A thermo-fusion pipe joint as defined in any one of claims 1 to 6, wherein: the connector body, the hot melting piece and the positioning piece are integrally formed.

8. A water pipe joint device comprising a pipe member, characterized by further comprising the heat fusible pipe joint as claimed in any one of claims 1 to 7; the pipe fitting is fixedly connected with the hot melt pipe joint in a sealing way through hot melt after being spliced and positioned.

Images