Electric water heater with inner container cleaning function

Abstract

An electric water heater with an inner container cleaning function comprises an inner container, a water inlet pipe and a water outlet pipe, a water inlet of the water outlet pipe is located at the top of a cavity of the inner container, the electric water heater further comprises a cleaning pipe assembly, and the cleaning pipe assembly is arranged at the water inlet and communicated with the water outlet pipe through the water inlet. The cleaning pipe assembly comprises a spraying main pipe, and spraying holes are formed in the peripheral wall of the spraying main pipe. Compared with the prior art, the technical scheme provided by the utility model has the advantages that the inner container is cleaned from top to bottom in all directions by utilizing the existing structure, the length of the cleaning component can be adjusted to adapt to more inner container sizes, the service life of the inner container is longer, and the water is safer and more sanitary.

Description

Technical Field

[0001] The utility model relates to an electric water heater with an inner tank cleaning function. Background Art

[0002] The storage-type electric water heaters on the market, as they age and are restricted by the water inlet and outlet structures, are prone to the deposition of a large amount of impurities and bacteria at the bottom of their inner tanks. Especially in areas where the water contains high sediment content, long-term use will cause a thick layer of sediment to adhere to the inner wall of the inner tank. At the same time, the scale produced by the heating tube and the residue produced by the consumption of the magnesium rod will also fill the entire inner tank, seriously polluting the water quality in the inner tank, affecting the user's water health, and reducing the bathing experience.

[0003] Generally, during the entire service life of the electric water heater, users need to regularly clean and maintain the inner tank to extend the service life of the electric water heater and maintain healthy water use. At present, when users clean the electric water heater by themselves (non-professional cleaning), a relatively simple cleaning method is to remove the flange, take out the heating tube from the tank port, and then deeply clean the inner tank. Then, when the user deeply cleans the inner tank, it is generally to open the sewage outlet, inject water from the water inlet pipe through the external pipeline, and let the water flow flush the entire inner tank. For example, the Chinese invention application with application publication number CN104633913A, entitled "An electric water heater", discloses: comprising a shell, an inner tank, a water inlet pipe, a water outlet pipe and a sewage pipe, wherein the water inlet pipe, the water outlet pipe and the sewage pipe are all connected to the inner tank, and the electric water heater further comprises a jet pipe, at least a portion of which is arranged in the inner tank, and the water inlet end of the jet pipe is connected to the water outlet end of the water inlet pipe, and a jet hole for water intake and cleaning the inner tank is formed on the tube wall of the jet pipe. The technical solution described in the invention application, because the jet pipe is arranged on the water inlet pipe (the water inlet end of the jet pipe is connected to the water outlet end of the water inlet pipe), in order to avoid disturbing the upper hot water, the water inlet end of the water inlet pipe is generally located at the bottom of the inner tank cavity, so the technical solution described in the application cannot achieve the purpose of fully flushing the inner tank from the top of the inner tank from top to bottom.

[0004] For another example, a Chinese invention application with application publication number CN104930707A, entitled A Water Heater Tank, discloses: comprising: an inner tank; a drain pipe and a vent pipe, the drain pipe and the vent pipe being connected to the interior of the inner tank, the drain pipe being provided with a first control valve, and the vent pipe being provided with a second control valve; a water inlet pipe, the water inlet pipe comprising an inner water pipe extending into the interior of the inner tank, a plurality of water outlet holes being arranged at intervals on the pipe wall of the inner water pipe along its length direction, the water inlet of the inner water pipe being located at the lower end of the inner water pipe, and a third control valve being provided at the inlet of the water inlet pipe; and a water outlet height adjusting member, the water outlet height adjusting member being installed in the inner water pipe and movable in the up and down directions to limit different water outlet heights of the inner water pipe according to the needs of water inlet or cleaning. The technical solution described in the invention application uses the water outlet hole of the inner water pipe to flush the inner tank (the water inlet of the inner water pipe is located at the lower end of the inner water pipe), and adjusts the water outlet height of the inner water pipe by a water outlet height adjusting member, so as to achieve the purpose of flushing the inner tank. However, this solution has the problem of not utilizing the structural characteristics of the water outlet pipe itself to make the cleaning water flow out from the top of the inner tank and flush the inner tank in all directions. Although the water outlet height adjusting member can adjust the water outlet height of the inner water pipe, it is difficult to ensure that the cleaning water can clean the inner tank in all directions from the top to the bottom every time cleaning is performed.

[0005] For another example, the Chinese utility model patent with the authorization announcement number CN209541177U and the title of an electric water heater with a cleaning function discloses: it includes a cylinder and an electric heating body arranged in the cylinder to heat the water in the cylinder, the cylinder has a water inlet and a water outlet, and the cylinder is also provided with a backwash port, wherein: the electric water heater with a cleaning function also includes a backwash mechanism; the backwash mechanism includes: a flushing pipe group, which extends into and is horizontally placed in the cylinder through the backwash port, and the flushing pipe group has a spray hole; a return pipe, whose two ends are respectively connected to the water outlet and the flushing pipe group; a pump body, which is connected to the return pipe and fixed on the cylinder, the pump body absorbs water into the cylinder through the return pipe, and supplies the absorbed water to the flushing pipe group at a certain pressure so that the water is sprayed out through the spray hole to flush the inner wall of the cylinder. The technical solution described in the utility model also requires a backwash port to be opened on the inner tank for the flushing pipe group to extend therein, which results in an excessive number of openings in the inner tank, affects the processing difficulty and service life, and there is still a problem that it is impossible to ensure that the cleaning water can fully flush the inner tank from the top to the bottom. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides an electric water heater with an inner tank cleaning function which utilizes the existing structure to clean the inner tank from top to bottom in all directions, has an adjustable length of the cleaning component to adapt to more inner tank sizes, has a longer inner tank service life, and uses safer and more hygienic water.

[0007] The utility model mainly adopts the following technical solutions:

[0008] An electric water heater with an inner tank cleaning function comprises an inner tank, a water inlet pipe and a water outlet pipe, wherein the water inlet of the water outlet pipe is located at the top of the cavity of the inner tank, and further comprises a cleaning pipe assembly, wherein the cleaning pipe assembly is installed at the water inlet and is connected to the water outlet pipe through the water inlet, and the cleaning pipe assembly comprises a jet main pipe, and a surrounding wall of the jet main pipe is provided with a jet hole.

[0009] Wherein, the injection main pipe is arranged transversely at the top of the cavity of the inner container.

[0010] Wherein, the water outlet pipe vertically penetrates into the inner tank, and the cleaning pipe assembly also includes a mounting pipe, one end of which is connected to the injection main pipe, and the other end of the mounting pipe is trumpet-shaped and buckled at the water inlet of the water outlet pipe.

[0011] Wherein, a splitter plate is further arranged on the inner wall of the injection main pipe opposite to the position where the injection main pipe is connected with one end of the mounting pipe.

[0012] Wherein, the axial direction of the mounting pipe is perpendicular to the axial direction of the injection main pipe.

[0013] Wherein, the mounting pipe and the injection main pipe are integrally formed.

[0014] Wherein, the cleaning pipe assembly further comprises an extension pipe connected to the injection main pipe, wherein the extension pipe is sleeved on at least one of the two ends of the injection main pipe and moves along the length direction of the injection main pipe.

[0015] The peripheral wall of the extension tube is provided with spray holes, and the extension tube is provided with a closed end surface at the end opposite to the end fitted with the injection main tube, and the closed end surface is provided with a rinsing hole.

[0016] Wherein, the cleaning pipe assembly also includes a support sleeve, one end of which is connected to the injection main pipe, and the other end of which is trumpet-shaped.

[0017] It also includes a support rod, the water inlet pipe vertically penetrates into the inner tank, one end of the support rod is inserted into the other end of the support sleeve, and the other end of the support rod cooperates with the top end of the water inlet pipe.

[0018] According to the technical scheme described in the utility model, the following beneficial effects are achieved: the cleaning pipe assembly is installed at the water inlet of the water outlet pipe, and the characteristic that the water inlet is located at the top of the cavity of the inner tank can be used to elevate the cleaning pipe assembly, thereby ensuring that the cleaning water can fully clean the inner tank from the top of the cavity of the inner tank from top to bottom; the jet main pipe is horizontally arranged at the top of the cavity of the inner tank, and both sides of the inner tank can be taken into account during cleaning, so that the cleaning is more thorough; the other end of the installation pipe is trumpet-shaped, which plays a role in positioning and guiding when installed at the water inlet of the water outlet pipe, reducing the difficulty of assembly; the arrangement of the diverter plate in the jet main pipe The cleaning water can be turned and diverted in time after entering the injection main pipe from the water inlet of the outlet pipe through the installation pipe, avoiding the generation of undesirable vortices, ensuring the strength of the cleaning water sprayed out from the injection hole, and achieving better cleaning effect; the extension pipe is connected to the injection main pipe and can move along the length direction of the injection main pipe, so that the cleaning pipe assembly can adapt to inner tanks of different sizes and different volumes, and has stronger adaptability, thereby better flushing both sides of the cavity of the inner tank; the closed end face of the extension pipe is provided with a rinse hole, which can also better clean the two sides of the cavity of the inner tank, thereby achieving 360-degree all-round cleaning of the inner tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a perspective view of the cross-sectional structure of an electric water heater in one embodiment of the present application.

[0020] Figure 2 This is a perspective view of the cross-sectional structure of an electric water heater in another embodiment of the present application.

[0021] Figure 3 Schematic diagram of the cleaning pipe assembly structure.

[0022] Figure 4 for Figure 3 Schematic diagram of the injection main pipe structure with mounting pipe and support sleeve shown in the middle section AA.

[0023] 1 inner tank, 2 water inlet pipe, 3 water outlet pipe, 30 water inlet, 4 cleaning pipe assembly, 41 injection main pipe, 410 injection hole, 411 diverter plate, 42 mounting pipe, 43 extension pipe, 430 spray hole, 431 closed end face, 4310 elution hole, 44 support sleeve, 5 support rod. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0025] See also Figure 1 , 2As shown, an electric water heater with a tank cleaning function includes a tank 1, a water inlet pipe 2 and a water outlet pipe 3, wherein the water inlet 30 of the water outlet pipe 3 is located at the top of the cavity of the tank 1, and further includes a cleaning pipe assembly 4, which is installed at the water inlet 30 and communicates with the water outlet pipe 3 through the water inlet 30, and the cleaning pipe assembly 4 includes a jet main pipe 41, and a jet hole 410 is provided on the peripheral wall of the jet main pipe 41. In the present application, the cleaning pipe assembly is installed at the water inlet of the water outlet pipe, and the cleaning pipe assembly can be elevated by utilizing the characteristic that the water inlet is located at the top of the cavity of the tank, thereby ensuring that the cleaning water can fully clean the tank from the top of the cavity of the tank from top to bottom. When the user cleans the tank by himself, he can first open the sewage outlet, and then connect the water outlet pipe to the external pipeline to obtain cleaning water, thereby fully cleaning the inner wall of the tank. Preferably, the jet holes 410 are evenly spaced and distributed on the peripheral wall of the jet main pipe 41 along the length direction of the jet main pipe 41.

[0026] See also Figure 1 , 2 As shown, the injection pipe 41 is horizontally arranged at the top of the cavity of the inner tank 1. This structural design ensures that the injection of the cleaning water can take into account both sides of the cavity of the inner tank, and the cleaning is more comprehensive.

[0027] See also Figure 1 As shown, the water outlet pipe 3 vertically penetrates the inner tank 1, and the cleaning pipe assembly 4 also includes a mounting pipe 42, one end of which is connected to the injection main pipe 41, and the other end of the mounting pipe 42 is horn-shaped and buckled at the water inlet 30 of the water outlet pipe 3. In the present application, the other end of the mounting pipe is horn-shaped, which plays a role in positioning and guiding when the mounting pipe is installed at the water inlet of the water outlet pipe, reduces the difficulty of assembly, improves the assembly efficiency of workers, and can achieve waterway communication through buckling operation without the need for a tight thread connection between the mounting pipe and the water outlet pipe, avoiding complex and troublesome screwing operations, saving time and effort.

[0028] See also Figure 4 As shown, a diverter plate 411 is also provided on the inner wall of the injection main pipe 41 opposite to the place where the injection main pipe 41 is connected to one end of the mounting pipe 42. In the present application, the diverter plate is provided so that the cleaning water can be diverted and diverted in time after entering the injection main pipe from the water inlet of the outlet pipe through the mounting pipe, so as to avoid the generation of undesirable vortices, ensure the strength of the cleaning water ejected from the injection hole, and achieve a better cleaning effect. Preferably, the diverter plate 411 is straight or arc-shaped on one side opposite to the place where the injection main pipe 41 and the mounting pipe 42 are connected. More preferably, the diverter plate 411 is arc-shaped on one side opposite to the place where the injection main pipe 41 and the mounting pipe 42 are connected, so that the cleaning water is cut by the arc-shaped side when it contacts the side of the diverter plate, which plays a buffering role and reduces the vibration of the injection main pipe.

[0029] See also Figure 1 , 3As shown in FIG. 4 , the axial direction of the installation pipe 42 is perpendicular to the axial direction of the injection main pipe 41. This structural design is more conducive to assembly by workers, and also makes the joint effect of the installation pipe buckle mounted to the water inlet better and more fitting.

[0030] See also Figure 1 , 3 As shown in FIG. 4 , the mounting pipe 42 is integrally formed with the injection main pipe 41 .

[0031] See also Figure 1 , 2 As shown in Figure 3, the cleaning pipe assembly 4 also includes an extension pipe 43 connected to the injection pipe 41, and the extension pipe 43 is mounted on at least one of the two ends of the injection pipe 41 and moves along the length direction of the injection pipe 41. In the present application, the extension pipe is connected to the injection pipe and can move along the length direction of the injection pipe, so that the cleaning pipe assembly can adapt to inner tanks of different sizes, different structures, and different volumes, and has stronger scene adaptability, so as to better rinse the two sides of the cavity of the inner tank, and the cleaning effect is more significant. Preferably, the extension pipe 43 can be set at one end of the injection pipe 41, and the other end of the injection pipe 41 is directly installed at the water inlet 30 of the water outlet pipe 3 (for example, in one embodiment, the water outlet pipe is laterally inserted into the inner tank from the side of the inner tank, and the other end of the injection pipe can be directly connected to the water inlet of the water outlet pipe). Preferably, the extension tube 43 can also be sleeved on at least one of the two ends of the jet main pipe 41, and the jet main pipe 41 is then buckled to the water inlet 30 of the water outlet pipe 3 through the mounting tube 42 connected thereto. More preferably, the extension tube 43 is sleeved on both ends of the jet main pipe 41. In the present application, after the relative positions of the extension tube and the jet main pipe are adjusted according to the size of the inner tank, the extension tube and the jet main pipe can be relatively fixed together by fasteners or welding, and then installed at the water inlet of the water outlet pipe in the inner tank, thereby ensuring that the structure of the cleaning pipe assembly is more stable and the subsequent inner tank flushing effect is ensured.

[0032] See also Figure 3 As shown, the peripheral wall of the extension tube 43 is provided with a spray hole 430, and the extension tube 43 is formed with a closed end face 431 at the end opposite to the end fitted with the injection main pipe 41, and the closed end face 431 is provided with a rinse hole 4310. In the present application, the closed end face of the extension tube is provided with a rinse hole, which can also better clean the two sides of the cavity of the inner tank, thereby achieving 360-degree all-round cleaning of the inner tank without missing any corner area, and the cleaning effect is significantly better than that in the prior art, and the user's water safety and hygiene are better guaranteed.

[0033] See also Figure 1 , 3As shown in FIG. 4 , the cleaning pipe assembly 4 further includes a support sleeve 44, one end of which is connected to the injection pipe 41, and the other end of the support sleeve 44 is flared. Preferably, the support sleeve 44 is also integrally formed with the injection pipe 41, thereby reducing the number of parts and facilitating processing.

[0034] See also Figure 1 As shown, it also includes a support rod 5, the water inlet pipe 2 vertically penetrates the inner tank 1, one end of the support rod 5 is inserted into the other end of the support sleeve 44, and the other end of the support rod 5 is matched with the top of the water inlet pipe 2. This structural design allows the cleaning pipe assembly to be better supported and more stable, thereby better ensuring the cleaning effect and extending the service life of the inner tank.

[0035] Although the specific implementation modes of the present invention have been described above, those skilled in the art may modify the present invention without departing from the spirit and principle of the present invention. The protection scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electric water heater with inner tank cleaning function, comprising an inner tank, a water inlet pipe and a water outlet pipe, characterized in that: The water inlet of the water outlet pipe is located at the top of the cavity of the inner tank, and also includes a cleaning pipe assembly, which is installed at the water inlet and connected with the water outlet pipe through the water inlet. The cleaning pipe assembly includes a jet main pipe, and the surrounding wall of the jet main pipe is provided with a jet hole.

2. The electric water heater with inner tank cleaning function according to claim 1, characterized in that: The injection main pipe is arranged transversely on the top of the cavity of the inner container.

3. The electric water heater with inner tank cleaning function according to claim 1 or 2, characterized in that: The water outlet pipe vertically penetrates into the inner tank, and the cleaning pipe assembly also includes a mounting pipe, one end of which is connected to the injection main pipe, and the other end of which is flared and buckled at the water inlet of the water outlet pipe.

4. The electric water heater with inner tank cleaning function according to claim 3, characterized in that: A splitter plate is also provided on the inner wall of the injection main pipe opposite to the position where the injection main pipe is connected with one end of the installation pipe.

5. The electric water heater with inner tank cleaning function according to claim 3, characterized in that: The axial direction of the installation pipe is perpendicular to the axial direction of the injection main pipe.

6. The electric water heater with inner tank cleaning function according to claim 3, characterized in that: The mounting pipe is integrally formed with the injection main pipe.

7. The electric water heater with inner tank cleaning function according to any one of claims 1, 2, 4, 5, and 6, characterized in that: The cleaning pipe assembly also includes an extension pipe connected to the injection main pipe. The extension pipe is sleeved on at least one of the two ends of the injection main pipe and moves along the length direction of the injection main pipe.

8. The electric water heater with inner tank cleaning function according to claim 7, characterized in that: The peripheral wall of the extension tube is provided with a spray hole, and the extension tube is formed with a closed end surface at the end opposite to the end fitted with the injection main tube, and the closed end surface is provided with a rinse hole.

9. The electric water heater with inner tank cleaning function according to claim 3, characterized in that: The cleaning pipe assembly also includes a support sleeve, one end of which is connected to the injection main pipe, and the other end of which is trumpet-shaped.

10. The electric water heater with inner tank cleaning function according to claim 9, characterized in that: It also includes a support rod, the water inlet pipe vertically penetrates into the inner tank, one end of the support rod is inserted into the other end of the support sleeve, and the other end of the support rod cooperates with the top end of the water inlet pipe.

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