Shell structure of electric water heater

Abstract

The shell structure of the electric water heater comprises an end cover and a cylindrical outer shell, the end cover is installed at a port of the outer shell, a buckling position is arranged on the inner side face of the outer shell, an elastic buckle buckled at the buckling position is arranged on the inner side face of the end cover, a through hole is formed in the outer circumferential wall of the outer shell, and the elastic buckle is arranged on the outer circumferential wall of the outer shell. A movable pressing piece is installed at the position of the through hole, an unlocking part capable of pushing the elastic buckle to enable the elastic buckle to be separated from the buckle position when the movable pressing piece is pressed down is arranged on the movable pressing piece, and the movable pressing piece is connected with an elastic piece capable of driving the movable pressing piece to reset. When the movable pressing piece is pressed down to move towards the axis of the shell, the unlocking part on the movable pressing piece firstly makes contact with the free end of the elastic buckle, so that the elastic buckle generates elastic deformation and is separated from the buckle position, and the end cover is convenient to disassemble for overhauling.

Description

Technical Field

[0001] The utility model relates to the technical field of electric water heaters, in particular to a housing structure of an electric water heater. Background Art

[0002] Water heaters are commonly used household appliances in people's daily lives. According to different heat sources, water heaters are divided into electric water heaters and gas water heaters. Electric water heaters are widely used because of their convenient installation and relatively constant outlet water temperature. An electric water heater generally includes a housing, an inner tank, and an electric heater. The inner tank is arranged in the housing, and the electric heater is arranged in the inner tank to heat the water in the inner tank through the electric heater. Generally, end caps are also arranged at both ends of the housing. For existing electric water heaters, the end caps at both ends are generally fixed by screws or buckles, which is not convenient for removing the end caps for maintenance. Summary of the Utility Model

[0003] In view of this, the purpose of the utility model is to provide a housing structure of an electric water heater that is convenient for removing the end caps.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows: [[ID=1,8]]

[0005] A housing structure of an electric water heater includes an end cap and a cylindrical housing. The end cap is installed at the port of the housing. A buckle position is arranged on the inner side surface of the housing, and an elastic buckle that is buckled at the buckle position is arranged on the inner side surface of the end cap. A through hole is arranged on the outer peripheral wall of the housing, and a movable pressing member is installed at the through hole. An unlocking portion that can push the elastic buckle to disengage from the buckle position when the movable pressing member is pressed is arranged on the movable pressing member. The movable pressing member is connected with an elastic member that can drive it to reset.

[0006] In a preferred embodiment of the utility model, the buckle position is a convex block fixed on the inner side surface of the housing. The elastic buckle is buckled on the inner side surface of the convex block. A support box located inside the convex block is fixedly arranged on the inner side surface of the housing. The movable pressing member is movably installed between the support box and the convex block. A vertical plate is arranged on the support box, and the elastic member is a compression spring arranged between the vertical plate and the movable pressing member.

[0007] In a preferred embodiment of the utility model, the inner side surface of the edge of the end cap abuts against the outer side surface of the convex block.

[0008] In a preferred embodiment of the utility model, a supporting member is fixedly arranged on the inner side wall of the end cap. A pushing inclined surface that can push the supporting member when the movable pressing member is pressed is arranged on the movable pressing member, so that after the movable pressing member pushes the elastic buckle to disengage from the buckle position, the end cap can be pushed to disengage from the housing through the pushing inclined surface.

[0009] In a preferred embodiment of the present utility model, a thrust bearing surface corresponding to the push inclined surface is provided on the thrust member.

[0010] In a preferred embodiment of the present utility model, one end of the movable pressing member is provided with a pressing head inserted into the through hole, and the movable pressing member is further provided with a limiting step that can abut against the inner side surface of the housing to prevent it from disengaging from the through hole.

[0011] The beneficial effect of the present utility model is as follows: When the water heater is in normal use, the elastic buckle on the end cover is buckled on the above-mentioned buckle position, so that the end cover can be kept at the port of the housing. When the movable pressing member is pressed to move it towards the axis of the housing, the unlocking portion on the movable pressing member first contacts the free end of the elastic buckle, causing the elastic buckle to elastically deform and disengage from the above-mentioned buckle position; then, the push inclined surface on the movable pressing member contacts the thrust member on the end cover, and the end cover can be pushed to disengage from the housing, thereby realizing one-key opening of the end cover. Description of the Drawings

[0012] Figure 1 is a perspective view of the electric water heater;

[0013] Figure 2 is an exploded view of the housing structure of the electric water heater;

[0014] Figure 3 is a cross-sectional view of the housing structure of the electric water heater

[0015] Figure 4 is Figure 3 an enlarged view of part A in Detailed Embodiments

[0016] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0017] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. In addition, the descriptions involving "preferred", "sub-preferred", etc. in the present utility model are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "preferred" and "sub-preferred" may explicitly or implicitly include at least one such feature.

[0018] Referring to Figures 1 to 4The utility model proposes a shell structure of an electric water heater, including an end cover 1 and a cylindrical outer shell 2, the end cover 1 is installed at the port of the outer shell 2, and a buckle position is provided on the inner side surface of the outer shell 2, and an elastic buckle 11 that is buckled at the buckle position is provided on the inner side surface of the end cover 1, and a through hole 21 is provided on the outer peripheral wall of the outer shell 2, and a movable pressing piece 3 is installed at the through hole 21, and the movable pressing piece 3 is provided with an unlocking part 31 that can push the elastic buckle 11 when the movable pressing piece 3 is pressed to disengage the elastic buckle 11 from the buckle position, and the movable pressing piece 3 is connected to an elastic piece 4 that can drive it to reset.

[0019] Furthermore, a push member 12 is fixedly provided on the inner side wall of the end cover 1 , and a push inclined surface 32 is provided on the movable pressing member 3 , which can push the push member 12 when the movable pressing member 3 is pressed.

[0020] When the water heater is in normal use, the elastic buckle 11 on the end cover 1 is buckled in the above-mentioned buckle position, which can keep the end cover 1 at the port of the shell 2. When the movable pressing piece 3 is pressed to move it toward the axis of the shell 2, the unlocking part 31 on the movable pressing piece 3 first contacts the free end of the elastic buckle 11, causing the elastic buckle 11 to elastically deform and disengage from the above-mentioned buckle position; then, the pushing inclined surface 32 on the movable pressing piece 3 contacts the pushing piece 12 on the end cover 1, and the end cover 1 can be pushed to disengage from the shell 2, thereby realizing one-click opening of the end cover 1.

[0021] In a preferred embodiment of the present invention, the buckle is a protrusion 5 fixed on the inner side of the shell 2. The inner surface of the protrusion 5 refers to the side thereof facing away from the corresponding end cover 1, and the outer surface of the protrusion 5 refers to the side thereof facing the corresponding end cover 1. The elastic buckle 11 is buckled on the inner surface of the protrusion 5, and a support box 6 located inside the protrusion 5 is fixedly provided on the inner side of the shell 2. The movable pressing member 3 is movably installed between the support box 6 and the protrusion 5. A vertical plate 61 is provided on the support box 6, and the elastic member 4 is a compression spring provided between the vertical plate 61 and the movable pressing member 3. The inner side surface of the edge of the end cover 1 abuts against the outer surface of the protrusion 5. The specific installation method of the compression spring is: 1. A spring mounting column is provided on the movable pressing member 3, and one end of the compression spring is sleeved on the spring mounting column. 2. In order to further improve the stability of the compression spring installation, based on the above solution 1, a spring installation column can also be provided on the vertical plate 61, and the other end of the compression spring is sleeved on the spring installation column.

[0022] Further, a thrust-receiving slope 121 corresponding to the thrust slope 32 is provided on the thrust-receiving member 12. The thrust slope 32 is an inclined plane, and the thrust-receiving slope 121 can be a plane parallel to the thrust slope 32 or an inclined arc surface.

[0023] Referring to Figure 4 , a pressing head 33 inserted into the through hole 21 is provided at one end of the movable pressing member 3, and a limiting step 34 capable of abutting against the inner side surface of the housing 2 to prevent the movable pressing member 3 from disengaging from the through hole 21 is further provided on the movable pressing member 3. When the user releases the movable pressing member 3, the movable pressing member 3 will be driven by the elastic force of the elastic member 4 to reset, so that the pressing head 33 on the movable pressing member 3 is inserted into the above-mentioned through hole 21, and the limiting step 34 on the movable pressing member 3 abuts against the inner side surface of the housing 2.

[0024] In some embodiments of the present invention, the above-mentioned buckling position can also adopt other structural forms. For example, a groove provided on the inner side surface of the housing 2 can be used. The above-mentioned elastic member 4 can also adopt other structural forms, such as a tension spring, an elastic cord, and other devices.

[0025] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made by using the description and drawings of the present invention under the inventive concept of the present invention, or directly or indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A housing structure of an electric water heater, characterized in that, It includes an end cap (1) and a cylindrical outer shell (2). The end cap (1) is installed at the port of the outer shell (2). There are buckling positions provided on the inner side surface of the outer shell (2), and elastic buckles (11) that are buckled at the buckling positions are provided on the inner side surface of the end cap (1). Through holes (21) are provided on the outer peripheral wall of the outer shell (2), and a movable pressing member (3) is installed at the through holes (21). An unlocking portion (31) capable of pushing the elastic buckle (11) to disengage from the buckling position when the movable pressing member (3) is pressed is provided on the movable pressing member (3). The movable pressing member (3) is connected with an elastic member (4) capable of driving it to reset.

2. The housing structure of an electric water heater according to claim 1, characterized in that, The buckling position is a bump (5) fixed on the inner side surface of the outer shell (2). The elastic buckle (11) is buckled on the inner side surface of the bump (5). A support box (6) located inside the bump (5) is fixedly provided on the inner side surface of the outer shell (2). The movable pressing member (3) is movably installed between the support box (6) and the bump (5). A vertical plate (61) is provided on the support box (6). The elastic member (4) is a compression spring provided between the vertical plate (61) and the movable pressing member (3).

3. The housing structure of an electric water heater according to claim 2, characterized in that, The inner side surface of the edge of the end cap (1) abuts against the outer side surface of the bump (5).

4. The housing structure of an electric water heater according to claim 1, characterized in that, A thrust-bearing member (12) is fixedly provided on the inner side wall of the end cap (1). A thrust slope (32) capable of pushing the thrust-bearing member (12) when the movable pressing member (3) is pressed is provided on the movable pressing member (3), so that after the movable pressing member (3) pushes the elastic buckle (11) to disengage from the buckling position, it can push the end cap (1) to disengage from the outer shell (2) through the thrust slope (32).

5. The housing structure of an electric water heater according to claim 4, characterized in that, A thrust slope (121) corresponding to the thrust slope (32) is provided on the thrust-bearing member (12).

6. The housing structure of an electric water heater according to claim 1, characterized in that, One end of the movable pressing member (3) is provided with a pressing head (33) inserted into the through hole (21). A limiting step (34) capable of abutting against the inner side surface of the outer shell (2) to prevent it from disengaging from the through hole (21) is also provided on the movable pressing member (3).

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