Double inner container electric water heater

Abstract

The present application belongs to the technical field of water heaters, and discloses a double-tank electric water heater, which comprises a rear shell, a clamping hoop, two inner tanks and a fastening bolt. When the double-tank electric water heater is assembled, the clamping hoop is fixedly connected with the outer wall hanging bracket, then the two inner tanks are sleeved in the clamping hoop, and then the fastening bolt is used to lock the fastening part on the clamping hoop, so that the clamping hoop tightly fixes the two inner tanks. Through the above mode, the bracket of the clamping hoop and the outer wall hanging bracket can be accurately positioned, the assembly error can be reduced, the outer wall hanging bracket can be horizontally aligned without deflection, and the whole machine can be horizontal after being hung.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water heaters, in particular to a double-tank electric water heater. BACKGROUND

[0002] Now the traditional double-tank electric water heater product, usually two inner tank is fixed by welding method in the inner tank support, then the inner tank and inner tank support together first installed in the front shell, and then install the rear shell. In the above assembly process, the inner tank support and inner tank welding positioning, may produce a first installation error, and then assembled with the front shell positioning, may produce a second installation error, and then assembled with the rear shell positioning, may again produce installation error, after several assembly, if the above one or more errors, will cause the inner tank support bracket hole and the outer wall of the rear shell hanging bracket hanging bracket hole deviation is large, eventually will cause the installation of the outer wall of the rear shell positioning problem, cause the outer wall of the rear shell difficult to install, or after installation, the outer wall of the rear shell skew, hanging machine water heater machine is not equal problem. SUMMARY

[0003] The purpose of the present application is to provide a double-tank electric water heater, which can reduce the assembly error, ensure the positioning accuracy of the inner tank support and the outer wall of the rear shell, and ensure the horizontal alignment of the outer wall of the rear shell.

[0004] To achieve this purpose, the present application adopts the following technical scheme:

[0005] A double-tank electric water heater, comprising:

[0006] a rear shell, the rear shell is provided with an outer wall of the rear shell;

[0007] a clamp, one side is provided with a bracket, the bracket and the outer wall of the rear shell are connected by bolt fixing, the clamp is provided with a fastening part;

[0008] two inner tanks are installed in the clamp, and the fastening bolt passes through and locks the fastening part, so that the clamp tightens the two inner tanks.

[0009] As a preferred, the clamp comprises a first connecting piece and a second connecting piece, the first connecting piece is a long circular ring structure, the second connecting piece is connected to the middle position of the first connecting piece, and forms an installation part between the first connecting piece, and the inner tank is installed in the installation part.

[0010] As a preferred, the second connecting piece comprises an arc segment and a connecting segment at both ends of the arc segment, the arc segment is attached to the outer wall of the inner tank, and the connecting segment is fixedly connected to the first connecting piece.

[0011] As a preferred, the arc segment and the connecting segment are connected by a circular arc segment.

[0012] Preferably, two second connecting members are provided, and the two second connecting members are symmetrically connected to the middle position.

[0013] Preferably, one end of the first connecting member is formed with two open ends, the open ends are provided with the fastening parts, and the fastening bolt passes through and locks the two fastening parts to tighten the two inner containers;

[0014] Alternatively, the second connecting member is provided with the fastening portion, and the fastening bolt passes through the fastening portion and the first connecting member to tighten the inner liner.

[0015] Preferably, a support is provided at a position of the rear shell corresponding to the bracket, an end face of the support abuts against an end face of the bracket, and a hole for the bolt to pass through is opened in the center of the support.

[0016] Preferably, the outer wall of the rear shell is provided with a groove, the outer wall bracket is embedded in the groove, and the groove is provided with a hole for the bolt to pass through.

[0017] Preferably, the inner liner is a non-metallic inner liner.

[0018] Preferably, two clamps are provided, the inner liner includes a first position, the first position is located between the end and the center position of the inner liner, and two clamps are respectively provided at one of the first positions.

[0019] The present invention has the following beneficial effects: When assembling a dual-tank electric water heater, the clamp is first fixedly connected to the external wall mount and positioned. The two inner tanks are then sleeved within the clamp. The clamp is then tightened with a bolt to secure the clamp's fastening portion. This ensures the clamp's precise positioning with the external wall mount, minimizing assembly errors and ensuring the external wall mount is horizontally aligned and level, ensuring the water heater is level once installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a double-tank electric water heater provided by the present invention, showing a shell, a clamp, and an inner tank;

[0021] Figure 2 is a cross-sectional view of a double-tank electric water heater provided by the present invention;

[0022] Figure 3 This invention Figure 2 A magnified schematic diagram of point A;

[0023] Figure 4 This is a structural schematic diagram of a housing of a double-tank electric water heater provided by the present invention from one perspective;

[0024] Figure 5This is a structural schematic diagram of the housing of the double-tank electric water heater provided by the present invention from another perspective;

[0025] Figure 6 This invention Figure 5 An enlarged schematic diagram of point B;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the clamp of the double-tank electric water heater provided by the present invention;

[0027] Figure 8 This is a front view of the clamp of the double-tank electric water heater provided by the present invention;

[0028] Figure 9 It is a structural schematic diagram of the second connecting piece of the clamp of the double-tank electric water heater provided by the present invention.

[0029] In the picture:

[0030] 1. Back shell; 11. External wall bracket; 12. Support; 2. Clamp; 21. Bracket; 211. First connecting plate; 212. Mounting plate; 213. Second connecting plate; 22. Fastening part; 23. First connecting piece; 24. Second connecting piece; 241. Arc segment; 2411. Reinforcement rib; 242. Connecting section; 243. Arc segment; 25. Mounting part; 3. Inner liner. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0032] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0033] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0035] Example 1

[0036] This embodiment provides a double-tank electric water heater, which can reduce the assembly error of the external wall bracket 11, ensure that the external wall bracket 11 is horizontally aligned and not skewed, so that the entire water heater is level after being hung. Figures 1-3 As shown, the double-tank electric water heater of this embodiment includes a rear shell 1, a clamp 2 and two tanks 3, wherein:

[0037] like Figure 3 and Figure 4 As shown, an external wall mount 11 is provided on the rear housing 1. This external wall mount 11 has through-holes through which bolts can pass to securely connect the external wall mount 11 to the clamp 2. This external wall mount 11 enables installation of a dual-tank electric water heater on a bathroom wall. For example, in this embodiment, an inwardly recessed groove can be provided on the outer wall of the rear housing 1. This groove can be formed by stamping, and the external wall mount 11 is embedded in the groove. The groove also has holes for the bolts to pass through.

[0038] In this embodiment, Figure 5 and Figure 6 As shown, because the outer wall of the rear housing 1 is provided with an inwardly recessed groove, a raised structure is formed on the inner wall of the rear housing 1 corresponding to the groove. A support 12 is provided at this raised structure, which is used to support the clamp 2. A hole for the bolt is provided in the center of the support 12, which is arranged opposite the through-hole in the exterior wall bracket 11. Preferably, a plurality of reinforcing ribs are provided around the circumference of the support 12 to increase its strength and provide more stable support for the clamp 2.

[0039] Referring to Figure 7 and Figure 8 The clamp 2 comprises a support 21, a fastening part 22, a first connecting part 23 and a second connecting part 24. The first connecting part 23 is in the shape of a long circular ring, and the second connecting part 24 is connected to the middle of the first connecting part 23 and forms two mounting parts 25 with the first connecting part 23, which are used for mounting the inner container 3. That is, through the connection of the first connecting part 23 and the second connecting part 24, two mounting parts 25 can be formed, and the inner container 3 can be arranged in the mounting parts 25. In this embodiment, the mounting parts 25 are in the shape of a ring, and the corresponding inner container 3 is also a circular inner container 3.

[0040] In this embodiment, the support 21 is arranged on one end of the first connecting part 23, and the support 21 is arranged on one of the mounting parts 25. The support 21 is provided with a support hole, which is a threaded hole, and the support hole is arranged opposite to the through hole of the outer wall hanging bracket 11. The bolt is screwed into the support hole after passing through the through hole of the outer wall hanging bracket 11 and the hole of the support 12, so as to realize the fixed connection of the outer wall hanging bracket 11 and the support 21, and further realize the fixed connection of the outer wall hanging bracket 11 and the clamp 2.

[0041] Preferably, referring to Figure 7 The support 21 comprises a first connecting plate 211, a mounting plate 212 and a second connecting plate 213 connected in sequence. The first connecting plate 211 and the second connecting plate 213 are fixedly connected to the mounting part 25 (specifically, to the outer wall of the first connecting part 23), and the mounting plate 212 is provided with the support hole. In this embodiment, it should be noted that the mounting plate 212 is attached to the end face of the support 12, so that the support 12 can be better positioned with the hole of the support 21, and the support 12 can better support the support 21.

[0042] In this embodiment, two open ends are formed at the end of the first connecting part 23 where the hanging bracket is not arranged, and the fastening part 22 is arranged at the open end. The two fastening parts 22 are arranged opposite to each other. The fastening part 22 can be in the shape of a plate, and a through hole is formed in the plate. The fastening bolt can pass through the through holes of the two fastening parts 22 and lock the two fastening parts 22 by the nut. During the locking process of the fastening part 22, the first connecting part 23 will be in a tightened state, and finally the two inner containers 3 will be clamped tightly.

[0043] As shown in Figure 8 The second connecting part 24 is provided with two second connecting parts 24, which are symmetrically connected to the middle of the first connecting part 23, so as to form two mounting parts 25 for mounting the two inner containers 3 of the double inner container electric water heater.

[0044] Exemplarily, referring toFigure 9 The second connecting member 24 includes an arc segment 241 and connecting segments 242 located at both ends of the arc segment 241, wherein the arc segment 241 is in contact with the outer wall of the inner liner 3, and the connecting segment 242 is a flat plate structure, which is in contact with and fixedly connected to the inner wall of the first connecting member 23. Through the structure of the second connecting member 24, the mounting portion 25 formed can be annular in shape to fit the shape of the inner liner 3. Preferably, the connecting segment 242 extends horizontally from the end of the arc segment 241 toward the top of the arc segment 241, that is, a buffer space is formed between the arc segment 241 and each connecting segment 242, so that there is a certain elasticity between the arc segment 241 and the connecting segment 242. When the inner liner 3 is installed on the mounting portion 25, the structure of the second connecting member 24 can provide a buffer, making the installation of the inner liner 3 more convenient. At the same time, the formation of the buffer space can also improve the structural strength of the clamp 2, thereby improving the support for the inner liner 3.

[0045] Furthermore, the arc segment 241 and the connecting segment 242 are connected by an arc segment 243. The provision of the arc segment 243 can further enhance the elasticity of the second connecting member 24, thereby enhancing the cushioning effect when installing the inner liner 3. In addition, when the fastening bolts are tightened to lock the fastening portion 22, the first connecting member 23 is tightened. The elastic properties of the second connecting member 24 can simultaneously tighten the two inner liner 3, preventing loosening between the inner liner 3 and the mounting portion 25, and also reducing the resistance to tightening the clamp 2.

[0046] As a preferred technical solution, this embodiment further provides arc-shaped reinforcing ribs 2411 on the arc-shaped segment 241. The reinforcing ribs 2411 can provide strength to the arc-shaped segment 241, thereby improving its supporting performance.

[0047] In this embodiment, preferably, Figure 1 As shown, two clamps 2 are provided. By providing two clamps 2, the inner tank 3 can be better secured. Furthermore, the two clamps 2 connected to the two exterior wall brackets 11 can also ensure that the double-tank electric water heater is in a horizontal position when hung up. More preferably, the inner tank 3 includes a first position located between the end and the center of the inner tank 3, with each clamp 2 provided at one of the first positions. This method provides better support for the inner tank 3.

[0048] Furthermore, the first connecting member 23 of the clamp 2 of this embodiment can also be fixedly connected to the front shell of the double-tank electric water heater, thereby improving the installation stability of the clamp 2 and making its support for the inner tank 3 more stable.

[0049] The above-mentioned inner liner 3 of this embodiment is preferably a non-metallic inner liner 3, such as a plastic inner liner 3, which has the advantages of good corrosion resistance, long service life, high insulation coefficient and low processing cost. However, due to the material characteristics of the non-metallic inner liner 3, its pressure-bearing capacity is poor. Therefore, this embodiment provides two clamps 2, and the two clamps 2 are provided at the first position of the inner liner 3, which is equivalent to supporting on both sides of the inner liner 3, thereby improving the pressure-bearing capacity of the inner liner 3. Moreover, since the non-metallic inner liner 3 is easily deformed by heat, the provision of the two clamps 2 can also suppress the expansion of the non-metallic inner liner 3 to a certain extent.

[0050] When assembling the dual-tank electric water heater of this embodiment, the bracket 21 of the clamp 2 is first fixedly connected and positioned with the external wall bracket 11 by bolts to achieve a fixed connection between the clamp 2 and the rear shell 1. The two inner tanks 3 are then sleeved into the mounting portion 25 of the clamp 2. The fastening portion 22 of the clamp 2 is then tightened by tightening the bolts, thereby achieving the clamp 2 tightening and securing the two inner tanks 3. This method ensures that the bracket 21 of the clamp 2 is accurately positioned with the external wall bracket 11, reduces assembly errors, ensures that the external wall bracket 11 is horizontally aligned and not tilted, and ensures that the entire water heater is level after being hung.

[0051] Example 2

[0052] This embodiment provides a double-tank electric water heater, which differs from the first embodiment in that the fastening portion 22 is formed at a different position. Specifically, the first connecting member 23 of this embodiment is not provided with an open end, but one end of the second connecting member 24 (that is, one of the connecting sections 242) is in an unconnected and parallel state with the first connecting member 23. A fastening portion 22 is provided on the second connecting member 24 (in this embodiment, the fastening portion 22 can be a connecting section 242), and through holes are provided on the fastening portion 22 and the first connecting member 23. The fastening bolt passes through the through hole of the fastening portion 22 and the through hole of the first connecting member 23, and then the fastening portion 22 and the first connecting member 23 are locked by a nut. During the locking process, the first connecting member 23 and the second connecting member 24 will be in a tightened state, and the inner tank 3 will be finally tightened.

[0053] The rest of the structure of this embodiment is the same as that of the first embodiment and will not be described again here.

[0054] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A double-tank electric water heater, characterized in that: include: A rear shell (1), wherein the rear shell (1) is provided with an external wall hanging bracket (11); A clamp (2) is provided with a bracket (21) on one side, the bracket (21) and the external wall hanger (11) are fixedly connected by bolts, and the clamp (2) is provided with a fastening portion (22); Two inner containers (3) are installed side by side in the clamp (2), and a fastening bolt passes through and locks the fastening portion (22) so that the clamp (2) clamps the two inner containers (3); The clamp (2) comprises a first connecting member (23) and a second connecting member (24), wherein the first connecting member (23) is an oblong ring-shaped structure, the second connecting member (24) is connected to the middle position of the first connecting member (23), and a mounting portion (25) is formed between the second connecting member (24) and the first connecting member (23), and the liner (3) is mounted in the mounting portion (25); The second connecting member (24) comprises an arc segment (241) and connecting segments (242) located at both ends of the arc segment (241), the arc segment (241) being attached to the outer wall of the inner container (3), the connecting segment (242) extending horizontally from the end of the arc segment (241) toward the top of the arc segment (241), and the connecting segment (242) being fixedly connected to the first connecting member (23); The arc segment (241) and the connecting segment (242) are connected via a circular arc segment (243).

2. The double-tank electric water heater according to claim 1, characterized in that: Two second connecting members (24) are provided, and the two second connecting members (24) are symmetrically connected at the middle position.

3. The double-tank electric water heater according to claim 1, characterized in that: One end of the first connecting member (23) is formed with two open ends, the open ends are provided with the fastening parts (22), and the fastening bolt passes through and locks the two fastening parts (22) to tighten the two inner containers (3); Alternatively, the second connecting member (24) is provided with the fastening portion (22), and the fastening bolt passes through the fastening portion (22) and the first connecting member (23) to tighten the inner liner (3).

4. The double-tank electric water heater according to claim 1, characterized in that: A support (12) is provided at a position of the rear shell (1) corresponding to the bracket (21), an end surface of the support (12) abuts against an end surface of the bracket (21), and a hole for the bolt to pass through is provided at the center of the support (12).

5. The double-tank electric water heater according to claim 1, characterized in that: The outer wall of the rear shell (1) is provided with a groove, the outer wall hanger (11) is embedded in the groove, and the groove is provided with a hole for the bolt to pass through.

6. The double-tank electric water heater according to claim 1, characterized in that: The inner liner (3) is a non-metal inner liner.

7. The double-tank electric water heater according to any one of claims 1 to 6, characterized in that: Two clamps (2) are provided, the inner liner (3) includes a first position, the first position is located between the end and the center position of the inner liner (3), and the two clamps (2) are each provided at one of the first positions.

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