Front filtering device of wading household appliance

Abstract

A front filtering device of a wading household appliance comprises at least one filtering unit, the filtering unit comprises a first shell and a second shell which are detachably connected, the first shell and the second shell are connected and then define a filtering cavity used for containing a filtering module, and the filtering module is placed in the filtering cavity so that the better filtering effect can be achieved; a first filter screen and a second filter screen are arranged to prevent the filtering module from flowing out randomly, a first thread part capable of being matched with an external water pipe and a second thread part capable of being matched with the external water pipe are arranged at different positions of the water inlet and the water outlet, and the first thread part and the second thread part can be connected with each other; the two adjacent filter units can be detachably connected in series, and when a single filter unit filled with the filter module still cannot meet the filter requirement, a plurality of filter units can be combined end to end and connected in series according to the actual requirement and then stacked for use, so that the optimal filter effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water filtering technical field, concretely relates to a water contact household appliance prefiltering device. BACKGROUND

[0002] It is known that the existing water heater, washing machine, water tank part is influenced by the new installation or aging of the household water supply pipe, secondary water supply maintenance, pipe maintenance installation during use, causes the water to contain silt particle, rust, red worm, waterweed and scale and other impurities, causes the function and life of water heater, washing machine, water tank part to be seriously damaged, causes frequent failure, therefore the installation prefilter is especially important, the prefilter can filter silt, rust, worm egg, red worm and other large particle substances in the tap water, and scale is prevented and removed, is generally installed at the front end position of the pipeline.

[0003] For example, the Chinese utility model patent with the application number 201720557939.7 (the authorized announcement number is CN207031103U) has disclosed a product matching prewater filtering device, which comprises a water inlet and outlet main body, a filter core with hollow two-end opening and a shell, the water inlet and outlet main body is provided with a water inlet joint and a clean water outlet, the clean water outlet and the water inlet interface form an included angle alpha of the first driving part, so that the water flow direction can be directly filtered from bottom to top and then directly flow out, adopting such filtering water outlet mode, the water outlet quantity and the filtering effect are indeed improved to a certain extent, and the functions of clean water, soft water, bacterium inhibition and heavy metal removal can be smoothly realized.

[0004] However, the above-mentioned water filtering device also has problems, and no special filter screen is arranged inside the filtering device to prevent the outflow of the granular or sheet-shaped filtering module, and the filtering device here can only be used alone and cannot be used in combination and stacked, for some places with very poor water quality, a single filtering device cannot meet the use place and cannot achieve good filtering effect.

[0005] Therefore, how to provide a water filtering device which has a filter screen to prevent the outflow of the filtering module and can be used in combination and stacked after multiple filtering devices are combined to meet more use scenarios is a problem that those skilled in the art need to solve. UTILITY MODEL CONTENTS

[0006] The technical problem to be solved by the utility model is to provide a water contact household appliance prefiltering device which has a filter screen to prevent the outflow of the filtering module and can be used in combination and stacked after multiple filtering units are combined to meet more use scenarios in view of the above technical status.

[0007] The utility model discloses a technical scheme that solves the above technical problem is adopted: this wading household electrical appliance front filter device, including at least one filter unit, the filter unit includes the first casing and second casing of detachable connection, the first casing and second casing are connected and enclose and form the filter chamber for placing the filter module, the first casing is formed with the water inlet that filters the chamber in series, the second casing is formed with the water outlet that filters the chamber in series, the filter chamber with water inlet between being equipped with the first filter screen that prevents the filter module outflow, the filter chamber with water outlet between being equipped with the second filter screen that prevents the filter module outflow, the water inlet is equipped with the first screw thread part that can adapt external water pipe, the water outlet is equipped with the second screw thread part that can adapt external water pipe, and through the thread connection of first screw thread part and second screw thread part can make adjacent two filter units can be detachably connected together.

[0008] In order to optimize the detachable structure between the first shell and the second shell, the first shell and the second shell can be more conveniently and quickly installed or disassembled, preferably, a first outer thread is formed on the outer circumferential surface of the first shell, a first inner thread adapted to the first outer thread is formed on the inner circumferential surface of the second shell, and the first shell and the second shell are detachably connected together through the thread connection of the first outer thread and the first inner thread.

[0009] In order to optimize the overall structure of the first shell and the second shell, and to better form the first screw thread part and the second screw thread part on the corresponding first shell and second shell respectively, preferably, the first shell is cylindrical and has an opening at one end for taking and placing a filter module, the second shell is sleeved at the end opening of the first shell, the other end of the first shell protrudes a first annular wall communicating with the water inlet, the end of the second shell also protrudes a second annular wall communicating with the water outlet, the first screw thread part is an outer thread and is arranged on the outer circumferential surface of the first annular wall, and the second screw thread part is an inner thread and is arranged on the inner circumferential surface of the second annular wall.

[0010] In order to be able to smoothly drive the second shell to rotate in a limited space, preferably, the outer diameter of the second annular wall is smaller than the outer diameter of the second shell, and a first driving part is formed on the outer circumferential surface of the second annular wall to facilitate the rotation of the second shell driven by an external tool.

[0011] In order to better drive the first shell and the second shell by external force to achieve quick installation or disassembly, preferably, a second driving part is arranged on the outer circumferential surface of the first shell and the second shell to facilitate the rotation of the first shell and the second shell driven by an external tool.

[0012] In order to save the manufacturing cost and make the first filter screen and the second filter screen better set on the corresponding first shell and the second shell, preferably, the first filter screen is integrally formed on the first shell, and the second filter screen is integrally formed on the second shell.

[0013] In order to improve the filtering efficiency of the filtering module and make the filtering module more convenient to add or reduce, preferably, the filtering module is composed of dispersed filter bodies.

[0014] Preferably, the filter body is in a granular or sheet shape.

[0015] Preferably, the filter body comprises a scale inhibitor, a high-purity copper-zinc alloy, a residual chlorine ball and activated carbon.

[0016] Compared with the prior art, the utility model has the advantages that: the filtering module is placed in the filtering chamber formed after the first shell and the second shell are combined to achieve better filtering effect, the first filter screen and the first filter screen are arranged between the filtering chamber and the water inlet and the filtering chamber and the water outlet respectively to prevent the filtering module from flowing out at will, and the first threaded part and the second threaded part that can adapt to the external water pipe are arranged at the water inlet and the water outlet respectively, since the first threaded part and the second threaded part can be connected and detached, therefore, the adjacent two filtering units can be detachably connected in series, thereby avoiding the defects that multiple filtering devices cannot be used simultaneously in the prior art, when the single filtering unit filled with the filtering module still cannot meet the filtering requirements in the use environment, multiple filtering units can be combined and connected in series according to actual needs, thereby achieving the best filtering effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the filtering unit in the embodiment;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the filtering unit in the embodiment;

[0019] Figure 3 It is a schematic diagram of the exploded state structure of the filtering unit in the embodiment;

[0020] Figure 4 It is a schematic diagram of the sectional structure of the filtering unit in the embodiment (wherein the direction shown by the arrow B is the flow direction when the water flows and filters);

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the filtering unit in the embodiment;

[0022] Figure 6A sectional view of the filter units connected in series in the embodiment. DETAILED DESCRIPTION

[0023] The utility model will be described in further detail below in combination with the drawings.

[0024] As Figures 1-6 shown, the best embodiment of the utility model. The water-wading household appliance pre-filter device of the embodiment mainly comprises at least one filter unit A, wherein the filter unit A comprises a first shell 1 and a second shell 2.

[0025] Referring to Figures 1 to 4 , the first shell 1 and the second shell 2 in each filter unit A are detachably connected together, and the first shell 1 and the second shell 2 are connected to form a filter chamber 4 for placing a filter module 3, the first shell 1 is formed with a water inlet 1a connected to the filter chamber 4, the second shell 2 is formed with a water outlet 2a connected to the filter chamber 4, a first filter screen 1b is arranged between the filter chamber 4 and the water inlet 1a to prevent the filter module 3 from flowing out, a second filter screen 2b is arranged between the filter chamber 4 and the water outlet 2a to prevent the filter module 3 from flowing out, the water inlet 1a is provided with a first threaded portion 1c capable of adapting to an external water pipe, the water outlet 2a is provided with a second threaded portion 2c capable of adapting to an external water pipe, and the adjacent two filter units A can be detachably connected together through the threaded connection of the first threaded portion 1c and the second threaded portion 2c.

[0026] Among them, in order to optimize the detachable structure between the first shell 1 and the second shell 2, the first shell 1 and the second shell 2 can be more conveniently and quickly installed or disassembled, referring to Figure 3 and Figure 4 , in the embodiment, the outer periphery of the first shell 1 is formed with a first outer thread 1d, the inner periphery of the second shell 2 is formed with a first inner thread 2d adapted to the first outer thread 1d, and the first shell 1 and the second shell 2 are detachably connected together through the threaded connection of the first outer thread 1d and the first inner thread 2d.

[0027] Secondly, in order to optimize the overall structure of the first shell 1 and the second shell 2, and to better form the first threaded portion 1c and the second threaded portion 2c on the corresponding first shell 1 and second shell 2 respectively, referring to Figure 3 and Figure 4As shown in the figure, in this embodiment, the first shell 1 is in a cylindrical shape and has an opening 1e at one end for taking out and putting in the filter module 3, the second shell 2 is sleeved at the end opening 1e of the first shell 1, the other end of the first shell 1 is provided with a first annular wall 1f which is connected with the water inlet 1a, the end of the second shell 2 is also provided with a second annular wall 2e which is connected with the water outlet 2a, the first threaded part 1c is external thread and is arranged on the outer circumferential surface of the first annular wall 1f, and the second threaded part 2c is internal thread and is arranged on the inner circumferential surface of the second annular wall 2e.

[0028] In addition, in order to smoothly drive the second shell 2 to rotate in a limited space, with reference to Figure 2 As shown in the figure, in this embodiment, the outer diameter of the second annular wall 2e is smaller than the outer diameter of the second shell 2, and a second driving part 2f is formed on the outer circumferential surface of the second annular wall 2e for driving the second shell 2 to rotate by external tools, and the outer contour of the second driving part 2f is hexagonal.

[0029] At the same time, in order to better drive the first shell 1 and the second shell 2 by external force to achieve quick installation or quick disassembly, with reference to Figure 1 and Figure 2 As shown in the figure, in this embodiment, the outer circumferential surface of the first shell 1 and the second shell 2 is provided with a first driving part 1g for driving itself to rotate by external tools, and the outer contour of the first driving part 1g is hexagonal.

[0030] In addition, in order to save production cost and better set the first filter screen 1b and the second filter screen 2b on the corresponding first shell 1 and second shell 2, with reference to Figure 4 As shown in the figure, in this embodiment, the first filter screen 1b is integrally formed on the first shell 1, and the second filter screen 2b is integrally formed on the second shell 2. Of course, we can also set the first filter screen 1b and the second filter screen 2b to be split type, and fix the first filter screen 1b and the second filter screen 2b on the first shell 1 and the second shell 2 respectively by installation.

[0031] In this embodiment, in order to improve the filtering efficiency of the filter module 3 and make the filter module more convenient to add or reduce, with reference to Figure 4 As shown in the figure, the filter module 3 is composed of dispersed filter bodies, and the filter bodies are in the form of particles or sheets, and the filter bodies mainly include scale inhibitor, high-purity copper-zinc alloy, residual chlorine ball and activated carbon, and calcium sulfite (chlorine ball), medical stone mineralization ball, alkaline mineralization ball and VC mineralization ball can also be added as needed to achieve better filtering effect. In addition, the consumer can also determine the type and amount of filter bodies according to the water consumption and water quality.

[0032] It is also necessary to extend the description here, in the embodiment, the filter module 3 is placed in the filter chamber 4 formed after the first shell 1 and the second shell 2 are enclosed to achieve better filtering effect, so that the user can add the filter body of the filter module 3 according to the specific water quality, and the first filter screen 1b and the second filter screen 2b are arranged between the filter chamber 4 and the water inlet 1a, and the filter chamber 4 and the water outlet 2a to prevent the filter module 3 from flowing out at will, and the first threaded part 1c and the second threaded part 2c that can adapt to the external water pipe are arranged at the water inlet 1a and the water outlet 2a respectively, since the first threaded part 1c and the second threaded part 2c here can be connected and detached, so that the adjacent two filter units A can be detachably connected in series, thereby effectively avoiding the disadvantages that multiple filter devices cannot be used simultaneously in the prior art, when a single filter unit A filled with filter modules 3 still cannot meet the filtering requirements of the use environment, multiple filter units A can be combined and connected in series according to actual needs, thereby achieving the best filtering effect, wherein Figure 5 And Figure 6 The structure of the plurality of filter units A combined in series is shown.

[0033] It should be noted that in the description of the embodiment, the terms "front, rear, left, right, upper, lower" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. The terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A wading appliance pre-filtering device, characterized by: The filter unit (A) comprises a first shell (1) and a second shell (2) which are detachably connected, and a filter cavity (4) is formed after the first shell (1) and the second shell (2) are connected. The first shell (1) is provided with a water inlet (1a) connected to the filter cavity (4), and the second shell (2) is provided with a water outlet (2a) connected to the filter cavity (4). A first filter screen (1b) is arranged between the filter cavity (4) and the water inlet (1a) to prevent the filter module (3) from flowing out. A second filter screen (2b) is arranged between the filter cavity (4) and the water outlet (2a) to prevent the filter module (3) from flowing out. The water inlet (1a) is provided with a first threaded portion (1c) which can be matched with an external water pipe. The water outlet (2a) is provided with a second threaded portion (2c) which can be matched with an external water pipe. The first threaded portion (1c) and the second threaded portion (2c) can be threadedly connected to detachably connect two adjacent filter units (A) in series.

2. The wading appliance pre-filtering device of claim 1, wherein: The first shell (1) is provided with a first external thread (1d) on the outer periphery. The second shell (2) is provided with a first internal thread (2d) which can be matched with the first external thread (1d). The first external thread (1d) and the first internal thread (2d) can be threadedly connected to detachably connect the first shell (1) and the second shell (2).

3. The wading appliance pre-filtering device of claim 1, wherein: The first shell (1) is in a cylindrical shape and is provided with an opening (1e) at one end for taking and placing the filter module (3). The second shell (2) is sleeved at the opening (1e) of the first shell (1). The other end of the first shell (1) is provided with a first annular wall (1f) which is connected to the water inlet (1a). The end of the second shell (2) is also provided with a second annular wall (2e) which is connected to the water outlet (2a). The first threaded portion (1c) is an external thread which is arranged on the outer periphery of the first annular wall (1f). The second threaded portion (2c) is an internal thread which is arranged on the inner periphery of the second annular wall (2e).

4. The wading appliance pre-filtering device of claim 3, wherein: The outer diameter of the second annular wall (2e) is smaller than the outer diameter of the second shell (2). The outer periphery of the second annular wall (2e) is provided with a first driving portion (2f) which can be driven by an external tool to rotate the second shell (2).

5. The wading appliance pre-filtering device of claim 1, wherein: The outer periphery of the first shell (1) and the second shell (2) is provided with a second driving portion (1g) which can be driven by an external tool to rotate the first shell (1) and the second shell (2).

6. The wading appliance pre-filtering device of claim 1, wherein: The first filter screen (1b) is integrally formed on the first shell (1), and the second filter screen (2b) is integrally formed on the second shell (2).

7. A wading appliance pre-filtering device according to any one of claims 1 to 6, characterized in that: The filter module (3) is composed of dispersed filter bodies.

8. The wading appliance pre-filtering device of claim 7, wherein: The filter bodies are in a granular or sheet shape.

9. The wading appliance pre-filtering device of claim 7, wherein: The filter bodies comprise scale inhibitors, high-purity copper-zinc alloys, residual chlorine balls, and activated carbon.

Images