Two-stage filtering angle valve for closestool

Abstract

The utility model discloses a two-stage filter angle valve for a closestool, which comprises a valve casing, a first-stage filter cartridge and a second-stage filter cartridge, and the valve casing is provided with a water inlet channel, a first-stage water outlet channel and a second-stage water outlet channel; the cylinder wall of the first-stage filter cylinder is used for filtering water flow, so that the interior of the valve shell is hermetically divided into a water inlet cavity positioned on the inner side of the first-stage filter cylinder and a water outlet cavity positioned on the outer side of the first-stage filter cylinder; one end of the water inlet channel is communicated to the water inlet cavity, and the other end is communicated to the water source device; the cylinder wall of the second-stage filter cylinder is used for filtering water flow, the second-stage filter cylinder is sleeved on the periphery of the first-stage filter cylinder, and the peripheral wall of the second-stage filter cylinder is in sealing fit with the inner wall of the valve shell, so that the water flow in the water outlet cavity can flow out to the periphery of the second-stage filter cylinder only through the cylinder wall of the second-stage filter cylinder; one end of the primary water outlet channel is communicated into the water outlet cavity, and the other end of the primary water outlet channel is communicated with a closestool water inlet valve; and one end of the second-stage water outlet channel is communicated to the periphery of the second-stage filter cartridge, and the other end is communicated to the flushing nozzle. According to the utility model, the water filtering requirements of the water inlet valve and the flushing nozzle of the closestool water tank are respectively met through a simple structure.

Description

Technical Field

[0001] The utility model relates to the technical field of bathroom toilets, in particular to a double-stage filtering angle valve for toilets. Background Art

[0002] Toilets are usually supplied with water from a household water pipe network. A water inlet valve is usually provided in the toilet tank. The household water pipe network supplies water to the water inlet valve, which then discharges the water into the toilet tank. In the case of poor water cleanliness, large particles such as silt in the household water pipe network are likely to clog the water inlet valve.

[0003] At present, some smart toilets are also equipped with flushing nozzles, which are used to flush the buttocks of users after using the toilet, and have higher requirements on the cleanliness of the water source;

[0004] However, if the water supplied to the high toilet water inlet valve and flushing nozzle is filtered with a higher degree of cleanliness without distinction, it will inevitably lead to a reduction in the life of the filter device and slow water inlet to the toilet water inlet valve;

[0005] Therefore, there is a need for a simple filtering structure to filter the water supplied by the household water network to meet the water filtering needs of the toilet tank water inlet valve and the flushing nozzle respectively. Utility Model Content

[0006] The purpose of the utility model is to provide a double-stage filtering angle valve for a toilet, which overcomes the above-mentioned defects and satisfies the water filtering requirements of the toilet tank water inlet valve and the flushing nozzle respectively through a simple structure.

[0007] To achieve the above purpose, the solution of the utility model is: a double-stage filtering angle valve for a toilet, comprising a valve housing, a primary filter cartridge and a secondary filter cartridge, the valve housing is provided with a water inlet channel, a primary water outlet channel and a secondary water outlet channel;

[0008] The primary filter cartridge has water flowing through the cartridge wall for filtration, which seals the valve housing to separate the water inlet chamber located inside the primary filter cartridge and the water outlet chamber located outside the primary filter cartridge;

[0009] One end of the water inlet channel is connected to the water inlet chamber, and the other end is used to connect to the water source device;

[0010] The secondary filter cartridge has a wall through which water flows and is sleeved on the outer periphery of the primary filter cartridge. The outer peripheral wall of the secondary filter cartridge is sealed with the inner wall of the valve housing so that the water flow in the water outlet cavity can only flow out to the outer periphery of the secondary filter cartridge through the wall of the secondary filter cartridge.

[0011] One end of the primary water outlet channel leads to the water outlet chamber, and the other end is used to lead to the toilet water inlet valve;

[0012] One end of the secondary water outlet channel is connected to the outer periphery of the secondary filter cartridge, and the other end is used to be connected to the flushing nozzle.

[0013] Furthermore, the secondary filter cartridge is detachably installed in the valve housing.

[0014] Furthermore, the secondary filter cartridge is sleeved on a portion of the outer periphery of the primary filter cartridge, and the primary water outlet channel is led to a position on the inner wall of the valve housing avoiding the secondary filter cartridge.

[0015] Further, the primary filter cartridge comprises a primary filter cartridge inner sleeve, a primary filter screen and a primary filter cartridge outer sleeve;

[0016] The side wall of the inner sleeve of the primary filter cartridge is hollowed out, one end is sealed and inserted into the water inlet channel, and the outer periphery of the other end is sealed and matched with the inner wall of the valve housing;

[0017] The primary filter screen is used for filtering water flow and is sleeved on the outer periphery of the inner sleeve of the primary filter cartridge, and covers the hollow part of the inner sleeve of the primary filter cartridge;

[0018] The outer sleeve side wall of the primary filter cartridge is hollowed out and is sleeved on the outer periphery of the primary filter screen.

[0019] Further, the secondary filter cartridge includes a secondary filter screen and a secondary filter cartridge outer sleeve;

[0020] The secondary filter screen is detachably mounted on the outer circumference of the outer sleeve of the primary filter cartridge for filtering water flow;

[0021] The outer sleeve of the secondary filter cartridge can be detachably sleeved on the outer periphery of the secondary filter screen, and the side wall within the range where the secondary filter screen is located is hollowed out.

[0022] Furthermore, the valve housing includes a valve housing body and an end cover. The valve housing body is provided with a filter cartridge disassembly port at an end away from the water inlet channel. The primary filter cartridge and the secondary filter cartridge are respectively detachably installed in the valve housing from the filter cartridge disassembly port, and the end cover is detachably sealed on the filter cartridge disassembly port.

[0023] Furthermore, the water inlet channel is also provided with a stop valve upstream of the water inlet chamber, and the stop valve is used to open or close the water inlet channel for water to flow.

[0024] Furthermore, the stop valve has a knob exposed outside the valve housing, and the knob is rotated counterclockwise to open the water inlet channel to allow water to flow through, and the knob is rotated clockwise to close the water inlet channel to allow water to flow through.

[0025] Furthermore, the water inlet channel and the primary water outlet channel are on the same straight line, and the secondary water outlet channel is arranged on the sides of the two.

[0026] After adopting the above scheme, the beneficial effects of the utility model are:

[0027] The first-stage filter cartridge, the water flow of the cartridge wall is filtered, and the valve housing is sealed to separate the water inlet chamber located inside the first-stage filter cartridge and the water outlet chamber located outside the first-stage filter cartridge. One end of the water inlet channel is connected to the water inlet chamber, and the other end is used to be connected to the water source device. One end of the first-stage water outlet channel is connected to the water outlet chamber, and the other end is used to be connected to the toilet water inlet valve, so that the water flow supplied by the water source device can enter the water inlet valve after preliminary filtration of the first-stage filter cartridge, so as to avoid large particles such as mud and sand from clogging the water inlet valve;

[0028] The secondary filter cartridge has a wall through which water flows to be filtered and is sleeved on the outer periphery of the primary filter cartridge. The outer peripheral wall of the secondary filter cartridge is sealed with the inner wall of the valve housing so that the water flow in the water outlet chamber can only flow out to the outer periphery of the secondary filter cartridge through the wall of the secondary filter cartridge. One end of the secondary water outlet channel is connected to the outer periphery of the secondary filter cartridge, and the other end is used to be connected to the flushing nozzle, so that the water flow supplied by the water source device can be filtered once through the primary filter cartridge and then filtered twice through the secondary filter cartridge. The flushing nozzle uses the cleaner water flow after the secondary filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0030] Figure 2 It is a cross-sectional structural diagram of the utility model;

[0031] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0032] Figure 4 Exploded view of the valve housing removed for the end cap, primary filter cartridge, and secondary filter cartridge;

[0033] Figure 5 The exploded view of the end cap, primary filter cartridge and secondary filter cartridge;

[0034] Figure 6 This is a cross-sectional view of a filter cartridge with only one stage.

[0035] Explanation of numbers: 1-valve housing, 2-primary filter cartridge, 3-secondary filter cartridge, 4-water inlet channel, 5-primary water outlet channel, 6-secondary water outlet channel, 7-water inlet chamber, 8-water outlet chamber, 9-primary filter cartridge inner sleeve, 10-primary filter screen, 11-primary filter cartridge outer sleeve, 12-secondary filter screen, 13-secondary filter cartridge outer sleeve, 14-valve housing body, 15-end cover, 16-filter cartridge disassembly and assembly port, 18-knob, 19-first sealing ring, 20-shoulder, 21-second sealing ring. DETAILED DESCRIPTION

[0036] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise explicitly defined, directional words, such as the use of terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present invention.

[0038] The utility model provides a double-stage filter angle valve for a toilet, such as Figure 1-6 As shown, it comprises a valve housing 1, a primary filter cartridge 2 and a secondary filter cartridge 3, and the valve housing 1 is provided with a water inlet channel 4, a primary water outlet channel 5 and a secondary water outlet channel 6;

[0039] The primary filter cartridge 2 has a wall through which water flows through for filtration, i.e. at least a portion of the wall is formed by any existing filter material such as asbestos mesh, metal mesh, etc. It can be formed by integral injection molding of the filter material and plastic, or it can be formed by separate assembly of the filter material and the plastic support. Without specific limitation, the primary filter cartridge 2 is arranged in the valve housing 1, and the valve housing 1 is sealed to separate a water inlet chamber 7 located on the inner side of the primary filter cartridge 2, and a water outlet chamber 8 located on the outer side of the primary filter cartridge 2; one end of the water inlet channel 4 is connected to the water inlet chamber 7, and the other end is used to be connected to a water source device, which is not shown in the attached drawings, and can be any existing water supply device such as a household water pipe network; the primary filter cartridge 2 is provided ... the water inlet chamber 7 located on the inner side of the primary filter cartridge 2, and the One end of the water outlet channel 5 is connected to the water outlet chamber 8, and the other end is used to be connected to the toilet water inlet valve. The toilet water inlet valve is not shown in the drawings, and it can be any existing toilet water inlet valve structure; then the water flow supplied by the water source device will flow into the water inlet chamber 7 inside the primary filter cartridge 2 through the water inlet channel 4, and under the action of water pressure, pass through the cylinder wall of the primary filter cartridge 2 for filtration, and the filtered water flow enters the water outlet chamber 8 outside the primary filter cartridge 2, and then is supplied to the toilet water inlet valve through the primary water outlet channel 5, so as to realize preliminary filtration of the water flow in the household water pipe network before supplying it to the toilet water inlet valve for use, so as to avoid impurities in the water flow clogging the toilet water inlet valve;

[0040] The secondary filter cartridge 3 has a wall through which water flows through for filtration, that is, at least a portion of the wall is made of any existing filter material such as asbestos mesh, metal mesh, etc. It can be formed by integral injection molding of filter material and plastic, or it can be assembled separately from filter material and plastic bracket. Without specific limitation, the secondary filter cartridge 3 is in the valve housing 1 and sleeved on the outer periphery of the primary filter cartridge 2. The outer peripheral wall of the secondary filter cartridge 3 is sealed with the inner wall of the valve housing 1. The specific sealing structure is given in the following text, so that the water flow in the water outlet chamber 8 can only flow out to the outer periphery of the secondary filter cartridge 3 through the wall of the secondary filter cartridge 3, that is, the water flow reaching the outer periphery of the secondary filter cartridge 3 must be filtered through the secondary filter cartridge 3; preferably, in order to save layout space, the secondary filter cartridge 3 is sleeved on a part of the outer periphery of the primary filter cartridge 2 and avoids the primary water outlet channel 5. The conducting position with the water outlet chamber 8, that is, the primary water outlet channel 5 is conducted to the position on the inner wall of the valve housing 1 avoiding the secondary filter cartridge 3, so that when the water flow in the water outlet chamber 8 enters the primary water outlet channel 5, it does not pass through the filtration of the secondary filter cartridge 3, and one end of the secondary water outlet channel 6 is conducted to the outer periphery of the secondary filter cartridge 3, and the other end is used to be conducted to the flushing nozzle. The flushing nozzle can be any existing nozzle installed on the toilet for flushing the human body. It is a common design in this field, as shown in the accompanying drawings. Therefore, the water flow in the water outlet chamber 8 can reach the outer periphery of the secondary filter cartridge 3 only after secondary filtration through the wall of the secondary filter cartridge 3, and then further enter the secondary water outlet channel 6, and then be supplied to the flushing nozzle. The flushing nozzle uses a cleaner water flow that has undergone secondary deep filtration.

[0041] In order to enable the user to choose whether to install the secondary filter cartridge 3 according to their own needs and perform secondary filtration on the water flow, in a preferred embodiment, the secondary filter cartridge 3 is detachably installed in the valve housing 1, and the detachable structure is not specifically limited, and any existing structure that can detach and install the filter cartridge in the valve housing can be used;

[0042] In order to make the primary filter cartridge 2 and the secondary filter cartridge 3 work more stably and be able to be easily installed and removed from the valve housing 1, in a preferred embodiment, the primary filter cartridge 2 includes a primary filter cartridge inner sleeve 9, a primary filter screen 10 and a primary filter cartridge outer sleeve 11; the side wall of the primary filter cartridge inner sleeve 9 is hollow, the front end is sealed and inserted into the water inlet channel 4, and the rear end periphery is sealed with the inner wall of the valve housing 1 through a first sealing ring 19. Specifically, the rear end peripheral wall of the primary filter cartridge inner sleeve 9 is convex to form a shoulder 20, and the first sealing ring 19 is sleeved on the outer periphery of the shoulder 20; The first-stage filter screen 10 is used for water flow to pass through and is sleeved on the outer periphery of the first-stage filter cartridge inner sleeve 9, covering the hollow part of the first-stage filter cartridge inner sleeve 9; the side wall of the first-stage filter cartridge outer sleeve 11 is hollowed out, sleeved on the outer periphery of the first-stage filter screen 10, and detachably connected and fixed with the first-stage filter cartridge inner sleeve 9, so that the water flowing out of the water inlet chamber 7 from the hollow part on the first-stage filter cartridge inner sleeve 9 will pass through the first-stage filter screen for filtration, and then flow into the water outlet chamber 8 from the hollow part on the first-stage filter cartridge outer sleeve 11. Such a configuration can effectively support the first-stage filter screen 1 to prevent it from affecting water filtration after deformation. The secondary filter cartridge 3 comprises a secondary filter screen 12 and a secondary filter cartridge outer sleeve 13; the secondary filter screen 12 is for water flow to pass through for filtration, and preferably its filtration level is higher than that of the primary filter screen 10, that is, it can filter out cleaner water flow, and the secondary filter screen 12 can be detachably sleeved on the outer periphery of the primary filter cartridge outer sleeve 11; the secondary filter cartridge outer sleeve 13 can be detachably sleeved on the outer periphery of the secondary filter screen 12, and can be detachably connected and fixed with the primary filter cartridge outer sleeve 11, and the side wall of the secondary filter cartridge outer sleeve 13 within the range where the secondary filter screen 12 is located is hollowed out, so that the secondary filter screen 12 can be effectively fixed, and the rear end of the secondary filter cartridge outer sleeve 11 is sealed tightly against the shoulder of the primary filter cartridge inner sleeve 9, The outer peripheral wall at the other end forms a sealing fit with the inner wall of the valve housing through the second sealing ring 21, thereby realizing the sealing fit between the outer peripheral wall of the aforementioned secondary filter cartridge 3 and the inner wall of the valve housing 1. Of course, a secondary filter cartridge inner sleeve can also be added between the secondary filter screen 12 and the primary filter cartridge outer sleeve 11. Although not shown in the accompanying drawings, it is not specifically limited. More preferably, the valve housing 1 includes a valve housing body 14 and an end cover 15. The valve housing body 14 is provided with a filter cartridge disassembly port 16 at the end facing away from the water inlet channel 4. The primary filter cartridge 2 and the secondary filter cartridge 3 are respectively detachably installed in the valve housing 1 from the filter cartridge disassembly port 16, and the end cover 15 is detachably sealed on the filter cartridge disassembly port 16.

[0043] In a preferred embodiment, in order to facilitate the user to shut off the water supply of the water source device, the water inlet channel 4 is further provided with a stop valve upstream of the water inlet chamber 7, which can be any existing stop valve, and its internal structure is not described in detail in this embodiment, and is not shown in the drawings. The stop valve is used to open or close the water inlet channel 4. The stop valve has a knob 18 exposed outside the valve housing 1, and the knob 18 is rotated counterclockwise to open the water inlet channel 4 for water to pass through, and the knob 18 is rotated clockwise to close the water inlet channel 4 for water to pass through.

[0044] In order to make installation more convenient for users and avoid users from connecting the wrong water pipes, in a preferred embodiment, the water inlet channel 4 and the primary water outlet channel 5 are on the same straight line, and the secondary water outlet channel 6 is arranged on the sides of the two.

[0045] The above description is only a preferred embodiment of the present utility model and is not a limitation on the design of the present case. Any equivalent changes made based on the key design of the present case shall fall within the protection scope of the present case.

Claims

1. A double-stage filter angle valve for a toilet, characterized in that: It comprises a valve housing (1), a primary filter cartridge (2) and a secondary filter cartridge (3); the valve housing (1) is provided with a water inlet channel (4), a primary water outlet channel (5) and a secondary water outlet channel (6); The primary filter cartridge (2) has a wall through which water flows through for filtration, thereby sealing and separating the valve housing (1) into a water inlet chamber (7) located inside the primary filter cartridge (2) and a water outlet chamber (8) located outside the primary filter cartridge (2); One end of the water inlet channel (4) is connected to the water inlet chamber (7), and the other end is used to be connected to the water source device; The secondary filter cartridge (3) has a wall through which water flows and is sleeved on the outer periphery of the primary filter cartridge (2). The outer peripheral wall of the secondary filter cartridge (3) is in sealing cooperation with the inner wall of the valve housing (1), so that water in the water outlet chamber (8) can only flow through the wall of the secondary filter cartridge (3) and out to the outer periphery of the secondary filter cartridge (3); One end of the primary water outlet channel (5) is connected to the water outlet chamber (8), and the other end is used to be connected to the toilet water inlet valve; One end of the secondary water outlet channel (6) is connected to the outer periphery of the secondary filter cartridge (3), and the other end is used to be connected to the flushing nozzle.

2. A double-stage filter angle valve for a toilet as claimed in claim 1, characterized in that: The secondary filter cartridge (3) is detachably mounted in the valve housing (1).

3. A double-stage filter angle valve for a toilet as claimed in claim 1, characterized in that: The secondary filter cartridge (3) is sleeved on a portion of the outer periphery of the primary filter cartridge (2), and the primary water outlet channel (5) is connected to a position on the inner wall of the valve housing (1) that avoids the secondary filter cartridge (3).

4. A double-stage filter angle valve for a toilet as claimed in claim 1, characterized in that: The primary filter cartridge (2) comprises a primary filter cartridge inner sleeve (9), a primary filter screen (10) and a primary filter cartridge outer sleeve (11); The side wall of the inner sleeve (9) of the primary filter cartridge is hollowed out, one end of which is sealed and inserted into the water inlet channel (4), and the outer periphery of the other end is sealed and matched with the inner wall of the valve housing (1); The primary filter screen (10) is provided for filtering water flow and is sleeved on the outer periphery of the primary filter cartridge inner sleeve (9), and covers the hollow portion of the primary filter cartridge inner sleeve (9); The outer sleeve (11) of the primary filter cartridge has a hollow side wall and is sleeved on the outer circumference of the primary filter screen (10).

5. A double-stage filter angle valve for a toilet as claimed in claim 4, characterized in that: The secondary filter cartridge (3) comprises a secondary filter screen (12) and a secondary filter cartridge outer sleeve (13); The secondary filter screen (12) is used for filtering water flow and can be detachably mounted on the outer circumference of the primary filter cartridge outer sleeve (11); The secondary filter cartridge outer sleeve (13) is detachably sleeved on the outer periphery of the secondary filter screen (12), and the side wall within the area where the secondary filter screen (12) is located is hollowed out.

6. A double-stage filter angle valve for a toilet as claimed in claim 4, characterized in that: The valve housing (1) comprises a valve housing body (14) and an end cover (15); the valve housing body (14) is provided with a filter cartridge disassembly opening (16) at one end away from the water inlet channel (4); the primary filter cartridge (2) and the secondary filter cartridge (3) are respectively detachably mounted in the valve housing (1) through the filter cartridge disassembly opening (16); and the end cover (15) is detachably sealed on the filter cartridge disassembly opening (16).

7. A double-stage filter angle valve for a toilet as claimed in claim 1, characterized in that: The water inlet channel (4) is also provided with a stop valve upstream of the water inlet chamber (7), and the stop valve is used to open or close the water inlet channel (4) to allow water to pass through.

8. A double-stage filter angle valve for a toilet as claimed in claim 7, characterized in that: The stop valve has a knob (18) exposed outside the valve housing (1); the knob (18) is rotated counterclockwise to open the water inlet channel (4) to allow water to flow through, and the knob (18) is rotated clockwise to close the water inlet channel (4) to allow water to flow through.

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