CN216952068U

CN216952068U - Novel structure form of external thread joint for tap water pipe connection

Info

Publication number: CN216952068U
Application number: CN202122488540.7U
Authority: CN
Inventors: 张泉
Original assignee: Jiangsu Tianyi Cold Heading Co ltd
Current assignee: Jiangsu Tianyi Cold Heading Co ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-07-12
Anticipated expiration: 2031-10-15

Abstract

The utility model provides a new structural form of an external thread joint for connecting a tap water pipe, which is characterized by comprising a cylindrical main body, wherein symmetrical threaded holes are formed in two sides of the outer surface of the main body, chamfers are formed at the intersection positions of the outer surface and the side end faces, symmetrical deep holes are formed in the main body, an inner eighteen-tooth structure is adopted in the middle of the inner part of the main body, and an outer eighteen-tooth joint produced by a cold heading and tapping process is used for improving the thread quality and simultaneously improving the installation efficiency; the utility model adopts the cold heading and thread rolling process, improves the thread quality and the production efficiency, adopts the form of inner eighteen teeth, has small space limitation, can be screwed only by a hexagonal wrench during installation, is convenient and quick to operate compared with a large movable wrench and a pipe wrench, reduces the raw rubber belt and the installation time compared with a casting part during sealing; and plastic parts reduce the risk of leakage.

Description

Novel structure form of external thread joint for tap water pipe connection

Technical Field

The utility model relates to a new structure form of an external thread joint for connecting a tap water pipe,

background

External thread joints for connecting outside of running water pipes in the existing market are mostly middle hexagonal casting parts and cylindrical plastic parts; wherein, the surface of the joint of the hexagonal casting part has more sand holes, and the surface of the thread is rough after tapping; when in connection, a large movable spanner is needed for screwing, which wastes time and labor; a raw adhesive tape needs to be wound during connection, so that the sealing property is improved; the thread hardness of the cylindrical plastic part is low, and the leakage is easy; the pipe tongs are required for clamping, and the friction marks on the surface are unsightly after clamping; when in connection, the force is moderate, the pipe with large force can crack, and the pipe with small force can leak; and the two modes are inconvenient to use cold heading equipment to carry out mass production with high efficiency and low cost.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a new structure of an external thread joint for connecting a tap water pipe to solve the above problems of the related art.

In order to achieve the purpose, the utility model provides the following technical scheme:

a new structure of a male screw joint for connecting a tap water pipe is characterized by comprising a joint body 1 and a joint side end surface 3.

An end face chamfer 2 is arranged at the joint of the joint main body 1 and the joint side end face 3, the joint main body 1, the end face chamfer 2, the joint side end face 3, the inner eighteen-tooth structure 13 and the deep hole 12 are directly formed by a cold heading process, and then an external thread 11 is formed by tapping.

Compared with the prior art, the utility model has the following beneficial effects:

1. the cold heading and thread rolling process is adopted, so that the thread quality and the production efficiency are improved; and the installation efficiency is improved by adopting an inner hexagonal pattern.

2. The cold heading is a production mode of removing excess materials by extrusion deformation, the size and the shape of the produced product are ensured by a die, and compared with a cast part, the cold heading has high efficiency and good consistency.

3. The thread precision of the cold heading product after thread rolling is consistent with that of the lathed product after tapping. Compared with a casting part, the sealing process reduces the raw rubber belt and the installation time; and plastic parts reduce the risk of leakage.

4. The internal eighteen teeth form is adopted, the space limitation is small, the screwing can be realized only by using a hexagonal wrench during installation, and the operation is convenient and quick compared with that of a large movable wrench and a pipe wrench.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall internal structure of the present invention;

FIG. 3 is a schematic plane structure diagram of a blank after cold heading forming according to the present invention;

FIG. 4 is a schematic view of the plane structure of the blank after tapping;

in the figure: 1-a connector body; 11-external thread; 12-deep holes; 13-inner eighteen-tooth structure; 2-chamfering the end face; 3-side end face.

Detailed Description

The present invention will be described in further detail with reference to the following examples in order to clarify technical problems, technical solutions, implementation processes and performance displays. It should be understood that the specific embodiments described herein are for illustrative purposes only. The present invention is not limited to the above embodiments. Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.

Example 1

As shown in fig. 1, a new configuration of a male screw joint for connecting a water pipe is characterized by comprising a joint body 1 and a joint side end surface 3.

As shown in fig. 2, as a possible embodiment, an end face chamfer 2 is arranged at the joint of the joint main body 1 and the joint side end face 3, external threads 11 are respectively arranged on two sides of the outer surface of the joint main body 1, an internal eighteen-tooth structure 13 is adopted in the middle of the inside of the main body 1, the space limitation is small, the installation can be tightened by only using a hexagonal wrench, and the operation is more convenient and rapid.

As shown in fig. 3 and 4, as a possible embodiment, an end face chamfer 2 is formed at the joint of the joint body 1 and the joint side end face 3, and the joint body 1, the end face chamfer 2, the joint side end face 3, the internal eighteen tooth structure 13 and the deep hole 12 are directly formed by a cold heading process, wherein the cold heading is a production mode of removing excess materials by extrusion deformation. The size and shape of the produced product are ensured by the die, secondary clamping is not needed, and compared with a cast part, the produced product has high efficiency and good consistency; the external thread 11 is formed by thread rolling, the thread precision of the cold heading product after thread rolling is consistent with that of the lathed product after tapping, the sealing time is compared with that of a casting part, the raw rubber belt and the installation time are reduced, and the leakage risk is reduced compared with that of a plastic part; the raw adhesive tape is not required to be wound when sealing.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A new structural form of an external thread joint for connecting a tap water pipe is characterized by comprising a joint main body (1) and a joint side end face (3); an end face chamfer (2) is arranged at the joint of the joint main body (1) and the joint side end face (3), and external threads (11) are respectively arranged on two sides of the outer surface of the joint main body (1); the joint main body (1) is provided with deep holes (12) from two end surfaces to the inside, and an inner eighteen-tooth structure (13) is arranged between the two holes.