Electric water heater with spinning shell

Abstract

The utility model discloses an electric water heater with a spinning shell, which comprises the shell with two open ends, an inner container and an end cover structure, the inner container and the end cover structure are arranged in the shell, and L-shaped spinning protrusions are arranged on the side walls of the openings of the shell. The end cover structure comprises a mounting ring body and a circular cover body; a protruding ring is integrally formed on the outer edge of the end face, making contact with the shell, of the installation ring body. A rotary buckle clamping groove is formed in the mounting ring body, a convex edge is integrally formed on the inner ring surface of the mounting ring body, and a clamping groove is formed in the convex edge; an L-shaped buckling block is arranged on the mounting surface of the circular cover body; and the L-shaped buckling block of the circular cover body penetrates through the clamping groove and is rotationally positioned. According to the utility model, the structural arrangement is reasonable, the mounting ring body is connected to the end part of the shell through the L-shaped spinning buckle bulge, the convenience of mounting is improved, and the limiting clamping block is also arranged at the spinning buckle clamping groove, so that after the L-shaped spinning buckle bulge is mounted, the L-shaped spinning buckle bulge can be prevented from falling off from the spinning buckle clamping groove, the stability and reliability of mounting are improved, and the mounting efficiency is improved. And the applicability and the practicability are high.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric water heaters, and in particular relates to an electric water heater with a screw-on shell. Background Art

[0002] Electric water heaters are common household appliances in people's daily lives. Electric water heaters are usually composed of an outer shell, an inner tank and an electric heating component. The electric heating component can heat the water in the inner tank after being energized. In order to facilitate installation and maintenance, the electric water heaters in the prior art generally have openings at both ends of the outer shell body. After assembly is completed, the openings are covered by end covers and positioned by several screws. Although it can meet the general installation requirements, its assembly is relatively inconvenient and greatly reduces the assembly efficiency, so its applicability and practicality are limited. Utility Model Content

[0003] The utility model aims to provide an electric water heater with a screw-on housing which has a reasonable structure and is conducive to improving installation convenience.

[0004] The technical solution to achieve the purpose of the utility model is an electric water heater with a screw-on shell, comprising a shell with openings at both ends, an inner tank arranged in the shell and an end cover structure arranged at the shell opening, wherein a plurality of L-shaped screw-on protrusions are integrally formed on the side wall of the shell opening;

[0005] The end cover structure comprises a mounting ring body and a circular cover body;

[0006] The outer edge of the end surface of the mounting ring body in contact with the housing is integrally formed with a convex ring;

[0007] The mounting ring body is provided with a screw-on groove, the inner ring surface of the mounting ring body is integrally formed with a convex edge, and the convex edge is provided with a locking groove;

[0008] An L-shaped buckle block matching with the locking groove is integrally formed on the edge of the mounting surface of the circular cover;

[0009] The convex ring of the mounting ring body is sleeved on the end of the housing, and the L-shaped screw buckle protrusion is inserted into the screw buckle slot and rotated so that the mounting ring body enters the concave area of ​​the L-shaped screw buckle protrusion for positioning;

[0010] The L-shaped buckle block of the circular cover body passes through the locking groove and is rotated to position.

[0011] It is further preferred that: a limit block is provided on the end wall of the screw buckle slot via a rib;

[0012] The limiting clamping block is inserted into the screw buckle clamping groove to prevent the L-shaped screw buckle protrusion from falling off and being limited.

[0013] Further preferably, a mounting lug for positioning the inner liner is integrally formed on the inner ring of the mounting ring body, and an end of the inner liner is attached to the mounting lug and positioned by a screw.

[0014] It is further preferred that: the thickness of the mounting ring body matches the width of the recessed area of ​​the L-shaped turn-button protrusion.

[0015] It is further preferred that: the inner diameter of the convex ring matches the outer diameter of the housing.

[0016] More preferably, the number of the L-shaped screw-on protrusions is three or four.

[0017] Further preferably, a mounting seat is fixed on the outer wall of the housing by screws.

[0018] The utility model has positive effects: the structure of the utility model is reasonably arranged, and its mounting ring body is connected to the end of the shell through the L-shaped screw buckle protrusion, which is conducive to improving the convenience of installation, and also convenient for disassembly and maintenance operations. In addition, a limiting card block is arranged at the screw buckle slot. After the L-shaped screw buckle protrusion is installed, the limiting card block is inserted into the screw buckle slot, thereby preventing the L-shaped screw buckle protrusion from falling off from the screw buckle slot, thereby improving the stability and reliability of installation, and having strong applicability and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model easier to understand, the utility model is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein:

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0022] Figure 3 for Figure 2 Enlarged structural diagram at A in the middle.

[0023] Figure numerals: housing 1, end cover structure 2, mounting ring body 21, circular cover body 22, convex ring 23, L-shaped screw-on protrusion 3, screw-on slot 4, convex edge 5, positioning groove 6, L-shaped buckle block 7, rib 8, limiting block 9, mounting ear 10, mounting seat 11. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example

[0026] See Figures 1 to 3 As shown, an electric water heater with a screw-on shell includes a shell 1 with openings at both ends, an inner tank arranged in the shell and an end cover structure 2 arranged at the opening of the shell. In this embodiment, the shell is a conventional structure of the prior art, which can be a cylindrical shell, or an elliptical or square shell with openings at both ends. At the same time, the inner tank is also a conventional structure of the prior art, so it is not recorded in detail, but simply used, and is also equipped with a corresponding electric heating structure. Since this embodiment does not innovate the internal structure, it is not recorded in detail.

[0027] In actual application, a plurality of L-shaped screw-on protrusions 3 are integrally formed on the side wall of the opening of the shell; the number of the L-shaped screw-on protrusions is three or four. The end cover structure 2 includes a mounting ring body 21 and a circular cover body 22; a convex ring 23 is integrally formed on the outer edge of the end surface of the mounting ring body that contacts the shell; in this embodiment, the thickness of the mounting ring body matches the width of the recessed area of ​​the L-shaped screw-on protrusion. The inner diameter of the convex ring matches the outer diameter of the shell. During installation, the inner surface of the convex ring is attached to the outer surfaces of both ends of the shell.

[0028] In actual application, the mounting ring body is provided with a screw-on groove 4, the inner ring surface of the mounting ring body is integrally formed with a convex edge 5, and the convex edge is provided with a locking groove 6; the mounting surface edge of the circular cover body is integrally formed with an L-shaped locking block 7 that matches the locking groove; during installation, the convex ring of the mounting ring body is sleeved on the end of the shell, the L-shaped screw-on protrusion is inserted into the screw-on groove and rotated to position the mounting ring body into the recessed area of ​​the L-shaped screw-on protrusion; the L-shaped locking block of the circular cover body passes through the locking groove and rotates to position. Through the above structure, the installation convenience and stable installation reliability of the circular cover body and the mounting ring body are improved, and the disassembly, assembly and replacement operations are also convenient, wherein the number of L-shaped locking blocks is three or four.

[0029] In order to prevent the L-shaped turn buckle protrusion from loosening or falling off from the turn buckle slot after installation, a limit block 9 is provided on the end wall of the turn buckle slot through a rib 8; during installation, the limit block is inserted into the turn buckle slot to prevent the L-shaped turn buckle protrusion from falling off. In this embodiment, the transverse length of the L-shaped turn buckle protrusion matches the length of the turn buckle slot, so after installation, the limit block is inserted into the turn buckle slot, so that the length of the turn buckle slot becomes shorter, so that the transverse part of the L-shaped turn buckle protrusion cannot pass through the turn buckle slot, and the anti-falling operation is realized. The limit block can be a plastic structure or a plastic structure. The width of the limit block matches the width of the turn buckle slot, and the length is smaller than the turn buckle slot, which can prevent the L-shaped turn buckle protrusion from loosening or falling off from the turn buckle slot.

[0030] In actual application, the inner ring of the mounting ring body is integrally formed with a mounting lug 10 for positioning the inner liner, and the end of the inner liner is attached to the mounting lug and positioned by a screw. A mounting seat 11 is fixed to the outer wall of the outer shell by screws. The mounting seat is mainly used to mount the outer shell on a corresponding wall, which is a conventional structure in the prior art.

[0031] The utility model has positive effects: the structure of the utility model is reasonably arranged, and its mounting ring body is connected to the end of the shell through the L-shaped screw buckle protrusion, which is conducive to improving the convenience of installation, and also convenient for disassembly and maintenance operations. In addition, a limiting card block is arranged at the screw buckle slot. After the L-shaped screw buckle protrusion is installed, the limiting card block is inserted into the screw buckle slot, thereby preventing the L-shaped screw buckle protrusion from falling off from the screw buckle slot, thereby improving the stability and reliability of installation, and having strong applicability and good practicality.

[0032] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification can also be directly processed according to existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0033] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the present invention still belong to the protection scope of the present invention.

Claims

1. An electric water heater with a screw-on housing, comprising a housing with openings at both ends, an inner tank disposed in the housing, and an end cover structure disposed at the opening of the housing, characterized in that: A plurality of L-shaped screw-on protrusions are integrally formed on the side wall of the opening of the shell; The end cover structure comprises a mounting ring body and a circular cover body; The outer edge of the end surface of the mounting ring body in contact with the housing is integrally formed with a convex ring; The mounting ring body is provided with a screw-on groove, the inner ring surface of the mounting ring body is integrally formed with a convex edge, and the convex edge is provided with a locking groove; An L-shaped buckle block matching with the locking groove is integrally formed on the edge of the mounting surface of the circular cover; The convex ring of the mounting ring body is sleeved on the end of the housing, and the L-shaped screw buckle protrusion is inserted into the screw buckle slot and rotated so that the mounting ring body enters the concave area of ​​the L-shaped screw buckle protrusion for positioning; The L-shaped buckle block of the circular cover body passes through the locking groove and is rotated to position.

2. The electric water heater with a twist-on housing according to claim 1, characterized in that: A limit block is provided on the end wall of the screw buckle slot via ribs; The limiting clamping block is inserted into the screw buckle clamping groove to prevent the L-shaped screw buckle protrusion from falling off and being limited.

3. The electric water heater with a twist-on housing according to claim 2, characterized in that: The inner ring of the mounting ring body is integrally formed with a mounting lug for positioning the inner liner, and the end of the inner liner is attached to the mounting lug and positioned by a screw.

4. The electric water heater with a twist-on housing according to claim 3, characterized in that: The thickness of the mounting ring body matches the width of the recessed area of ​​the L-shaped turn buckle protrusion.

5. The electric water heater with a twist-on housing according to claim 1, characterized in that: The inner diameter of the convex ring matches the outer diameter of the housing.

6. The electric water heater with a twist-on housing according to claim 1, characterized in that: The number of the L-shaped turn buckle protrusions is three or four.

7. The electric water heater with a twist-on housing according to claim 1, characterized in that: A mounting seat is fixed on the outer wall of the shell by screws.

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