Electric water heater electricity guard wall with novel structure

Abstract

An electric water heater electricity guard wall of a novel structure comprises a main body made of plastic materials and an internal thread insert, and the internal thread insert is embedded in the main body. And the internal thread insert comprises an internal thread cavity, a circular pipe cavity, a cylindrical body part and a polygonal pre-embedded head part arranged at the lower end. A polygonal pre-embedded head part on the internal thread insert plays a role in preventing rotation after pre-embedding; and when the internal thread cavity is machined, the effect of a fixing seat can be achieved.

Description

Technical Field

[0001] The utility model relates to an anti-electricity wall of an electric water heater. Background Art

[0002] The current existing technology, Chinese patent 201620675474.0, an anti-electric wall structure for an electric water heater, includes a main body, the main body is inlaid with an internal thread insert and an external thread insert; the internal thread insert has an internal thread on its inner wall, and a convex tooth on its outer wall, and the convex tooth is in contact with the main body; the external thread insert has an external thread on its outer wall, and a boss on its inner wall, and the boss is in contact with the main body. The problem is that the processing of the internal thread insert is complicated, and it is inconvenient to fix it during machining. Utility Model Content

[0003] The utility model aims to provide an electric water heater anti-electricity wall with a new structure, which has the characteristics of convenient machining and fixing.

[0004] The utility model is implemented as follows: a new structure of an electric water heater anti-electric wall, including a main body made of plastic material and an internal thread insert, the internal thread insert is pre-buried in the main body; its special feature is that the internal thread insert includes an internal thread cavity, a circular tube cavity, a cylindrical body and a polygonal pre-buried head arranged at the lower end.

[0005] The special feature of the electric water heater anti-electricity wall with a new structure is that the polygonal embedded head of the internal thread insert is in a regular hexagonal shape.

[0006] The special feature of the new structure of the electric water heater anti-electric wall is that an inverted conical surface is arranged at the intersection of the end surface and the circumferential part of the polygonal embedded head.

[0007] The special feature of the new structure of the electric water heater anti-electrical wall is that at least one annular groove is provided on the cylindrical body.

[0008] The utility model discloses an electric water heater anti-electric wall with a new structure. The multi-faceted embedded head on the internal thread insert plays a role of preventing rotation after embedding; and can play a role of a fixing seat when machining the internal thread cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a cross-sectional view of the utility model.

[0010] Figure 2 It is one of the three-dimensional diagrams of the internal thread insert of the utility model.

[0011] Figure 3 This is the second stereoscopic view of the internal thread insert of the utility model.

[0012] Figure 4This is the third stereogram of the internal thread insert of the utility model. DETAILED DESCRIPTION

[0013] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0014] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0015] like Figure 1 As shown, a new structure of an electric water heater anti-electric wall comprises a main body 1 made of plastic material and an internal thread insert 2, wherein the internal thread insert 2 is pre-buried in the main body 1;

[0016] The internal thread insert 2 comprises an internal thread cavity 21, a circular tube cavity 22, a cylindrical body 23 and a polygonal embedded head 24 arranged at the lower end. The circular tube cavity 22 is connected to the internal thread cavity 21;

[0017] The manufacturing process of the internal thread insert 2 is as follows: first, make a rough piece, then fix the polygonal embedded head 24 on the fixture, and add a thread cavity by machining. It is convenient to make and can also prevent rotation after being embedded in the main body. Compared with the prior art, it has a simple structure and is easy to machine.

[0018] The polygonal embedded head 24 of the internal thread insert 2 is in the shape of a regular hexagon.

[0019] As a further improvement of the present invention: an inverted conical surface 241 is provided at the intersection of the end surface and the circumferential portion of the polygonal embedded head 24 .

[0020] like Figure 4 As shown, the cylindrical body 23 is provided with two annular grooves 231, and the annular grooves 231 are distributed along the axial direction; one, or more than three, may also be provided; such a structure is adopted to prevent the internal thread insert 2 from axially moving relative to the main body 1.

[0021] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A new structure of electric water heater anti-electric wall, including a main body made of plastic material and an internal thread insert, the internal thread insert is pre-buried in the main body; characterized in that: The internal thread insert comprises an internal thread cavity, a circular tube cavity, a cylindrical body and a polygonal embedded head arranged at the lower end; The polygonal embedded head of the internal thread insert is in the shape of a regular hexagon; The cylindrical body is provided with at least one annular groove.

2. The new structure of the electric water heater anti-electric wall according to claim 1 is characterized by: An inverted conical surface is provided at the intersection of the end surface and the circumferential portion of the polygonal embedded head.

Images