Electricity-proof wall mechanism of electric water heater

Abstract

The utility model relates to an anti-electricity wall mechanism of an electric water heater, which comprises a joint main body, the joint main body is connected with an insulating tube, a water inlet cavity is formed on the inner side of the insulating tube, a first buffer tube is sleeved on the outer side of the insulating tube, a first buffer cavity is formed between the first buffer tube and the insulating tube, and a second buffer tube is sleeved on the outer side of the first buffer tube. The upper end and the lower end of the second buffering pipe are open, a second buffering cavity is formed between the second buffering pipe and the first buffering pipe, the first buffering pipe and the second buffering pipe are provided with a first flow dividing hole and a second flow dividing hole respectively, and the water inlet cavity, the first buffering cavity, the first flow dividing hole, the second buffering cavity and the second flow dividing hole are sequentially communicated to form a water diversion channel. When water flows through the water diversion channel, the speed of the water flow is reduced, impact on hot water in the inner container is reduced, the water outlet temperature is more stable, the use experience of a user is improved, and meanwhile the installation difficulty of the electricity guard wall mechanism is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of electric water heater accessories, and particularly relates to an electric shock prevention wall mechanism for an electric water heater. Background Art

[0002] The electric shock prevention wall of an electric water heater is a device that uses the water resistance attenuation isolation method to ensure user safety and can fully guarantee the safety of people taking a bath.

[0003] When water flows through the electric shock prevention wall mechanism and enters the inner tank of the water heater, the flow rate of the water is relatively fast, which is likely to cause a large impact on the hot water in the inner tank, resulting in a rapid decrease in the temperature of the hot water and having a greater impact on the outlet water temperature, which is not conducive to improving the user experience.

[0004] Therefore, further improvement is needed. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies of the above-mentioned existing technologies, and provide an electric shock prevention wall mechanism for an electric water heater, which improves the user experience and simplifies the installation difficulty of the electric shock prevention wall mechanism at the same time.

[0006] The purpose of the utility model is realized as follows:

[0007] An electric shock prevention wall mechanism for an electric water heater includes a joint body. The joint body is connected with an insulating pipe. An inlet cavity is formed inside the insulating pipe. A first buffer pipe is sleeved outside the insulating pipe. A first buffer cavity is formed between the first buffer pipe and the insulating pipe. A second buffer pipe is sleeved outside the first buffer pipe. The upper and lower ends of the second buffer pipe are open. A second buffer cavity is formed between the second buffer pipe and the first buffer pipe. The first buffer pipe and the second buffer pipe are respectively provided with a first diversion hole and a second diversion hole. The inlet cavity, the first buffer cavity, the first diversion hole, the second buffer cavity and the second diversion hole are sequentially communicated to form a water diversion channel.

[0008] As a specific scheme, the lower end of the first buffer pipe is closely fitted with the joint body and / or the insulating pipe.

[0009] As a specific scheme, the upper end of the second buffer pipe is closely fitted with the outside of the first buffer pipe, and the lower end of the second buffer pipe is closely fitted with the joint body or the first buffer pipe.

[0010] As a specific scheme, a plurality of upper tightening parts are formed on the upper section of the second buffer pipe by stamping. The upper tightening parts are uniformly distributed in the circumferential direction and are closely fitted with the first buffer pipe. A plurality of lower tightening parts are formed on the lower section of the second buffer pipe by stamping. The lower tightening parts are uniformly distributed in the circumferential direction and are closely fitted with the first buffer pipe and / or the joint body.

[0011] As a specific solution, the upper ends of the insulating tube and the first buffer tube are open. The upper end of the insulating tube is provided with an end cap, which includes a first abutting portion and a second abutting portion. The lower side of the first abutting portion abuts against the upper end of the insulating tube, the outer periphery of the first abutting portion is closely fitted with the inner wall of the first buffer tube, and the second abutting portion abuts against the upper end of the first buffer tube.

[0012] As a specific solution, a water passing hole is provided at a position on the insulating tube near the end cap. The water inlet cavity and the first buffer cavity are communicated through the water passing hole, and the first diversion hole is provided at a position on the first buffer tube far from the end cap.

[0013] As a specific solution, the horizontal height of the second diversion hole is equivalent to that of the first diversion hole.

[0014] The beneficial effects of the present utility model are as follows:

[0015] The flow rate of the water slows down during the process of passing through the water diversion channel, reducing the impact on the hot water in the inner tank, making the outlet water temperature more stable, which is beneficial to improving the user experience. At the same time, since the upper and lower ends of the second buffer tube are open, there is no need to additionally install an upper cover at the upper end of the second buffer tube, simplifying the installation difficulty of the electric shock prevention wall mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a disassembled schematic diagram of an embodiment of the present utility model Figure 1 .

[0017] Figure 2 is a disassembled schematic diagram of an embodiment of the present utility model Figure 2 .

[0018] Figure 3 is a structural schematic diagram of an embodiment of the present utility model.

[0019] Figure 4 is a cross-sectional schematic diagram of an embodiment of the present utility model.

[0020] Figure 5 is an enlarged view of part A of an embodiment of the present utility model.

[0021] Figure 6 is an enlarged view of part B of an embodiment of the present utility model.

[0022] Figure 7 is an enlarged view of part C of an embodiment of the present utility model.

[0023] Figure 8 is an enlarged view of part D of an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0025] See Figures 1 - 8 Figures 1 - 8 , the electric shock prevention wall mechanism of this electric water heater includes a joint body 1. The joint body 1 is connected with an insulating pipe 2. An inlet cavity 21 is formed inside the insulating pipe 2. A first buffer pipe 3 is sleeved outside the insulating pipe 2. A first buffer cavity 31 is formed between the first buffer pipe 3 and the insulating pipe 2. A second buffer pipe 4 is sleeved outside the first buffer pipe 3. The upper and lower ends of the second buffer pipe 4 are open. A second buffer cavity 41 is formed between the second buffer pipe 4 and the first buffer pipe 3. A first diversion hole 32 and a second diversion hole 42 are respectively provided on the first buffer pipe 3 and the second buffer pipe 4. The inlet cavity 21, the first buffer cavity 31, the first diversion hole 32, the second buffer cavity 41 and the second diversion hole 42 are connected in sequence to form a water diversion channel.

[0026] The flow rate of the water will slow down during the process of passing through the water diversion channel, reducing the impact on the hot water in the inner tank, making the outlet water temperature more stable, and being beneficial to improving the user experience.

[0027] At the same time, since the upper and lower ends of the second buffer pipe 4 are open, compared with the situation where the upper end of the second buffer pipe 4 is sealed, there is no need to additionally install an upper cover at the upper end of the second buffer pipe 4, and the process of welding with the upper cover is reduced at the same time. The second buffer pipe 4 only needs to be partially deformed by stamping and connected and fixed with the first buffer pipe 3 when it is installed in place, simplifying the installation difficulty of the electric shock prevention wall mechanism.

[0028] In addition, compared with the situation where the upper end of the second buffer pipe 4 is sealed, since the first buffer pipe 3 can penetrate the upper end of the second buffer pipe 4, the length of the second buffer pipe 4 can be relatively reduced or it can be moved to a preset position to be installed and connected with the first buffer pipe 3, reducing the material cost of the second buffer pipe 4.

[0029] Furthermore, the lower end of the first buffer pipe 3 is closely fitted with the joint body 1 and / or the insulating pipe 2, so that the liquid entering the first buffer cavity 31 will not leak from the lower end position of the first buffer pipe 3.

[0030] Furthermore, the upper end of the second buffer pipe 4 is closely fitted with the outside of the first buffer pipe 3, and the lower end of the second buffer pipe 4 is closely fitted with the joint body 1 or the first buffer pipe 3, so that the liquid in the second buffer cavity 41 can completely flow out through the water diversion channel. In this embodiment, the lower end of the second buffer pipe 4 abuts against and is closely fitted with the joint body 1.

[0031] Furthermore, a plurality of upper tightening portions 43 are formed by stamping on the upper section of the second buffer tube 4. The upper tightening portions 43 are evenly distributed circumferentially and are in close fit with the first buffer tube 3. A plurality of lower tightening portions 44 are formed by stamping on the lower section of the second buffer tube 4. The lower tightening portions 44 are evenly distributed circumferentially and are in close fit with the first buffer tube 3 and / or the joint body 1. While the upper tightening portions 43 and the lower tightening portions 44 can ensure the sealing performance of the second buffer cavity 41, they can also keep a relatively even spacing between the first buffer tube 3 and the second buffer tube 4, that is, improve the concentricity between the two.

[0032] In other different embodiments, the connection between the second buffer tube 4 and the first buffer tube 3 or the joint body 1 can also be fixed by welding.

[0033] Furthermore, the upper ends of the insulating tube 2 and the first buffer tube 3 are open. An end cap 5 is provided at the upper end of the insulating tube 2. The end cap 5 includes a first abutting portion 51 and a second abutting portion 52. The lower side of the first abutting portion 51 abuts against the upper end of the insulating tube 2. The outer periphery of the first abutting portion 51 is in close fit with the inner wall of the first buffer tube 3. The second abutting portion 52 abuts against the upper end of the first buffer tube 3. The end cap 5 can seal the upper ends of the insulating tube 2 and the first buffer tube 3 at the same time, enabling the liquid to flow along the path of the water diversion channel.

[0034] Furthermore, a water passing hole 22 is provided at a position on the insulating tube 2 close to the end cap 5. The water inlet cavity 21 and the first buffer cavity 31 are communicated through the water passing hole 22. The first diversion hole 32 is provided at a position on the first buffer tube 3 far from the end cap 5. The liquid in the water inlet cavity 21 can enter the first buffer cavity 31 through the water passing hole 22. The fact that the water passing hole 22 is close to the end cap 5 can increase the flow travel of the liquid in the water inlet cavity 21, and the fact that the first diversion hole 32 is far from the end cap 5 can increase the flow travel of the liquid in the first buffer cavity 31, thereby achieving a better water flow deceleration and buffering effect.

[0035] Furthermore, the horizontal height of the second diversion hole 42 is equivalent to that of the first diversion hole 32, which can ensure the water flow deceleration and buffering effect while ensuring the water outlet efficiency.

[0036] The above embodiments are only the preferred solutions of the present invention, and the present invention may have other implementation schemes. Those skilled in the art can also make equivalent deformations or replacements without departing from the spirit of the present invention, and these equivalent deformations or replacements are all included within the scope set by the claims of this application.

Claims

1. An anti-electric wall mechanism for an electric water heater, characterized in that: The invention comprises a joint body (1), the joint body (1) being connected to an insulating tube (2), the inner side of the insulating tube (2) forming a water inlet cavity (21), the outer side of the insulating tube (2) being sleeved with a first buffer tube (3), a first buffer cavity (31) being formed between the first buffer tube (3) and the insulating tube (2), a second buffer tube (4) being sleeved with the outer side of the first buffer tube (3), the upper and lower ends of the second buffer tube (4) being open, a second buffer cavity (41) being formed between the second buffer tube (4) and the first buffer tube (3), the first buffer tube (3) and the second buffer tube (4) being respectively provided with a first flow diversion hole (32) and a second flow diversion hole (42), the water inlet cavity (21), the first buffer cavity (31), the first flow diversion hole (32), the second buffer cavity (41) and the second flow diversion hole (42) being connected in sequence to form a water diversion channel.

2. The anti-electricity wall mechanism of the electric water heater according to claim 1, characterized in that: The lower end of the first buffer tube (3) is tightly matched with the joint body (1) and / or the insulating tube (2).

3. The anti-electricity wall mechanism of the electric water heater according to claim 1, characterized in that: The upper end of the second buffer tube (4) is tightly matched with the outer side of the first buffer tube (3), and the lower end of the second buffer tube (4) is tightly matched with the joint body (1) or the first buffer tube (3).

4. The anti-electricity wall mechanism of the electric water heater according to claim 3, characterized in that: The upper section of the second buffer tube (4) is formed by stamping to form a plurality of upper pressing portions (43), the upper pressing portions (43) being evenly distributed along the circumference and tightly fitting with the first buffer tube (3); the lower section of the second buffer tube (4) is formed by stamping to form a plurality of lower pressing portions (44), the lower pressing portions (44) being evenly distributed along the circumference and tightly fitting with the first buffer tube (3) and / or the joint body (1).

5. The anti-electricity wall mechanism of the electric water heater according to any one of claims 1 to 4, characterized in that: The upper ends of the insulating tube (2) and the first buffer tube (3) are open, and the upper end of the insulating tube (2) is provided with an end cover (5), the end cover (5) comprising a first abutting portion (51) and a second abutting portion (52), the lower side of the first abutting portion (51) abuts against the upper end of the insulating tube (2), the outer periphery of the first abutting portion (51) is tightly matched with the inner side wall of the first buffer tube (3), and the second abutting portion (52) abuts against the upper end of the first buffer tube (3).

6. The anti-electricity wall mechanism of the electric water heater according to claim 5, characterized in that: A water through hole (22) is provided at a position on the insulating tube (2) close to the end cover (5); the water inlet cavity (21) is connected to the first buffer cavity (31) via the water through hole (22); and the first flow diversion hole (32) is provided at a position on the first buffer tube (3) away from the end cover (5).

7. The anti-electricity wall mechanism of the electric water heater according to claim 6, characterized in that: The second flow diversion hole (42) is at a level comparable to that of the first flow diversion hole (32).

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