A water inlet filter and sewage discharge structure and shower

Abstract

The present invention discloses a water inlet filter screen sewage discharge structure and a shower, wherein the water inlet filter screen sewage discharge structure mainly comprises a shell, a filter screen, a water outlet valve and a switching component, a first chamber and a second chamber are provided in the shell, and the switching component switches the connection between the water inlet path and the first chamber or the second chamber by axial movement in the shell, thereby realizing the backwash sewage discharge operation of the filter screen by switching the water path; the backwash sewage removal of the filter screen can be realized by simply pressing and driving the switching component, and there is no need to disassemble the faucet structure. The overall sewage discharge structure is simple, easy to use, and has high sewage discharge efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of showers, and in particular to a water inlet filter screen sewage discharge structure and a shower. Background Art

[0002] In order to prevent impurities and dirt in tap water from entering the shower and causing the valve core to be clogged, existing showers usually install a filter at the water inlet end, through which the incoming water is filtered and then transported to the main valve core such as the mixing valve. After a period of use, the filter at the water inlet end will be clogged due to the attachment of impurities, causing problems such as a slow water flow rate. At this time, the filter needs to be cleaned or replaced. Since the filter is installed inside the faucet, its removal is more complicated and difficult, and the main tap water switch needs to be turned off during removal. Overall, it is time-consuming and labor-intensive, and the efficiency is low. At the same time, some faucet products are highly integrated, and the filter is difficult to remove, requiring professional personnel to handle, and the cost of cleaning or replacement is high. Summary of the invention

[0003] The object of the present invention is to overcome the above-mentioned defects or problems existing in the background technology and to provide a water inlet filter screen sewage discharge structure and a shower to achieve backwash sewage discharge of the water inlet filter screen.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A water inlet filter screen sewage discharge structure, comprising a shell and a filter screen installed in the shell,

[0006] It also includes a water outlet valve and a switching assembly;

[0007] The shell is provided with a water inlet, a water outlet, a sewage discharge channel, a first chamber and a second chamber;

[0008] The first chamber is connected to the outside of the filter screen, and the second chamber is connected to the inside of the filter screen and the water outlet;

[0009] The water outlet valve is used to control the on-off of the water outlet;

[0010] The switching assembly switches the connection between the water inlet and the first chamber or the second chamber by axial movement in the shell, and closes the sewage discharge path when the water inlet is connected to the first chamber, and opens the sewage discharge path when the water inlet is connected to the second chamber.

[0011] Furthermore, the shell is also provided with a switching chamber, which is independently connected to the first chamber and the second chamber, and correspondingly connected to the water inlet; the sewage discharge path is arranged in the switching chamber; the switching component switches the connection between the water inlet and the first chamber or the second chamber by axial movement in the switching chamber, and closes the sewage discharge path when the water inlet is connected to the first chamber, and opens the sewage discharge path when the water inlet is connected to the second chamber.

[0012] Furthermore, the switching chamber includes a first switching chamber, a second switching chamber and a sewage chamber which are isolated from each other; the first switching chamber is used to connect the water inlet and the first chamber; the second switching chamber is used to connect the water inlet and the second chamber; the sewage chamber is used to set up a sewage sewage channel; the switching component runs through the first switching chamber, the second switching chamber and the sewage chamber.

[0013] Furthermore, the switching assembly includes a switching rod and a plurality of seals mounted on the switching rod; the switching rod is driven by pressing to move axially in the switching chamber, and controls the opening and closing of the first chamber, the second chamber and the water inlet, and the opening and closing of the sewage discharge passage through the seal.

[0014] Furthermore, a sewage pipeline is provided inside the switching rod, and a sewage pipeline inlet, namely a sewage pipeline outlet, is correspondingly provided; the sewage pipeline inlet is used to communicate with the sewage chamber, and the sewage pipeline outlet is communicated with the outside.

[0015] Furthermore, the switching assembly also includes an elastic member; the two ends of the elastic member respectively abut against the shell and the switching rod, which is used to keep the water inlet and the first chamber connected when the switching rod is not pressed.

[0016] Furthermore, it also includes a first end cover and a second end cover which are respectively detachably fixed to the shell; one end of the elastic member abuts against the first end cover; and the second end cover abuts against the other end of the switching rod away from the elastic member.

[0017] In addition, the present invention also provides a shower, comprising a main body, wherein the main body is equipped with a water inlet filter screen sewage discharge structure as described in any one of the above items.

[0018] Furthermore, the main body is provided with a sewage discharge operation port, and the position of the end portion of the switching lever for pressing corresponds to the position of the sewage discharge operation port.

[0019] From the above description of the present invention, it can be seen that compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The connection between the water inlet and the first chamber or the second chamber is achieved by axial movement of the switching component in the shell; when the water inlet is connected to the first chamber, the sewage channel is closed, the water outlet is opened, and water flows through the water inlet, the first chamber, the filter, the second chamber to the water outlet; when the water inlet is connected to the second chamber, the sewage channel is opened, the water outlet is closed, and water flows through the water inlet, the second chamber, the filter, the first chamber to the sewage channel; the first water channel mentioned above is the water channel for normal use, and the second water channel is the water channel for backwashing the filter; the backwashing and decontamination of the filter can be achieved by simply pressing and driving the switching component, without the need to disassemble the faucet, the overall sewage discharge structure is simple, easy to use, and the sewage discharge efficiency is high.

[0021] 2. The switching component moves axially in the switching chamber, and the switching chamber is independently connected to the first chamber and the second chamber to separate the first chamber and the second chamber, so that the switching component can control the connection between the first chamber, the second chamber and the water inlet through movement.

[0022] 3. The switching assembly includes a switching rod and a sealing member. The switching rod is used for being pressed and driven by the user, and the sealing member is used for realizing the opening and closing of the water inlet path and the first chamber, the second chamber, and the opening and closing of the sewage discharge path.

[0023] 4. A sewage discharge pipeline is arranged in the switching rod. The sewage after the backwash filter enters the sewage discharge chamber in the switching chamber, then enters the sewage discharge pipeline, and flows out to the outside through the sewage discharge pipeline, thereby reducing the complexity of the sewage discharge structure and reducing the manufacturing cost and maintenance cost.

[0024] 5. An elastic member is provided to resist the switching rod, so that the switching rod normally maintains a state in which the water inlet is connected to the first chamber, and is switched to the sewage discharge state through manual control only when necessary.

[0025] 6. The shower is provided with a sewage discharge operation port, which corresponds to the end position of the switching rod for pressing. When in use, the switching rod can be pressed through the sewage discharge operation port to perform a backwash sewage discharge operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A schematic structural diagram of an embodiment of a water inlet filter drain structure provided by the present invention;

[0028] Figure 2 for Figure 1 The schematic diagram of the embodiment shown is when water is discharged normally;

[0029] Figure 3 for Figure 1 The schematic diagram of the embodiment shown in the figure during backflushing and sewage discharge;

[0030] Figure 4 The present invention is a schematic structural diagram of an embodiment of a shower device provided by the present invention.

[0031] Description of main reference numerals:

[0032] 11. Main shell; 12. Water inlet pipe; 121. Water inlet; 13. Water outlet pipe; 131. Water outlet; 14. First end cover; 15. Elastic member; 16. Second end cover; 20. Filter; 30. Drain pipe; 31. Switch rod; 311. Drain pipe inlet; 312. Drain pipe outlet; 32. First sealing ring; 33. Second sealing ring; 34. Button; 401. First switching chamber; 402. Second switching chamber; 41. First switching water inlet; 42. Second switching water inlet; 43. First switching water outlet; 44. Second switching water outlet; 45. Third switching water outlet; 50. First chamber; 51. First water inlet; 52. Drain outlet; 60. Second chamber; 61. Second water inlet; 62. Water outlet; 70. Main body; 71. Drain operation port. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the claims, description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. are for distinguishing different objects rather than for describing a specific order.

[0035] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present invention.

[0036] In the claims, specification and the above drawings of the present invention, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0037] In the claims, description and drawings of the present invention, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0038] See also Figure 1 , Figure 1 A schematic diagram showing an embodiment of a water inlet filter drain structure provided by the present invention is shown. Figure 2 and Figure 3 , which respectively provide schematic diagrams of the embodiment in normal water discharge and backwash sewage discharge states.

[0039] In this embodiment, it includes a housing, a filter screen 20 , a water outlet valve, a switching assembly, a first end cover 14 and a second end cover 16 .

[0040] The housing includes a main housing 11, a water inlet pipe 12 and a water outlet pipe 13, and the water inlet pipe 12 and the water outlet pipe 13 are both sealed and fixedly connected to the main housing 11. A water outlet valve is provided on the water outlet pipe 13, and the water outlet valve is used to control the on and off of the water outlet pipe 13. A first chamber 50, a second chamber 60 and a switching chamber are provided in the main housing 11, a water inlet path is formed in the water inlet pipe 12, a water outlet path is formed in the water outlet pipe 13, and a sewage path is formed in the switching chamber. The water inlet path 121 is connected to the first chamber 50 and the second chamber 60 through the switching chamber, and can only be connected to one of the first chamber 50 or the second chamber 60 at a time.

[0041] The first chamber 50 is connected to the sewage discharge channel, and is used to discharge the sewage in the first chamber 50 when the sewage discharge channel is opened; the first chamber 50 is connected to the switching chamber through the first water inlet 51, and is used to receive water; the first chamber 50 is connected to the outside of the filter net 20, and is used to introduce water into the filter net 20.

[0042] The second chamber 60 is connected to the switching chamber through the second water inlet 61 for receiving water; the second chamber is connected to the water outlet 131 through the water outlet 62 for draining water; the second chamber is connected to the interior of the filter 20 for receiving water filtered by the filter 20.

[0043] The switching chamber is a cylindrical structure as a whole, and is used for the switching component to be inserted and axially moved therein. The switching chamber is divided into a first switching chamber 401, a second switching chamber 402 and a sewage chamber. The first switching chamber 401 and the second switching chamber 402 are isolated from each other and are connected to the first chamber 50 and the second chamber 60 respectively. The water inlet 121 is connected to the first switching chamber 401 and the second switching chamber 402 by switching the switching component, so as to realize the switching connection of the first chamber 50 and the second chamber 60.

[0044] A first switching water inlet 41 and a first switching water outlet 43 are formed on both sides of the first switching chamber 401 , respectively. The first switching water inlet 41 is used to communicate with the water inlet 121 , and the first switching water outlet 43 is used to communicate with the first water inlet 51 of the first chamber 50 .

[0045] A second switching water inlet 42 and a second switching water outlet 44 are formed on both sides of the second switching chamber 402 , respectively. The second switching water inlet 42 is used to communicate with the water inlet 121 , and the second switching water outlet 44 is used to communicate with the second water inlet 61 of the second chamber 60 .

[0046] The sewage chamber is arranged above the switching chamber, and is used to form a sewage drainage path. The first chamber 50 is connected to the sewage chamber through the sewage outlet 52. The switching chamber forms a hole at the top position, and the end of the switching component can extend out of the switching chamber. When the end of the switching component is located in the switching chamber, the sewage chamber is closed and the sewage drainage path is closed. When the end of the switching component leaves the switching chamber, the sewage chamber is opened, the sewage drainage path is opened, and sewage enters the sewage chamber from the first chamber 50.

[0047] A through hole is provided on the main shell 11, and the filter 20 is mounted on the filter mounting sleeve, passes through the through hole, and extends into the first chamber 50 until one end of the filter 20 abuts against the cavity wall of the first chamber 50. At this time, the end of the filter mounting sleeve forms a sealed and fixed relationship with the through hole on the main shell 11, thereby fixing the filter 20 in the first chamber 50.

[0048] The switching assembly includes a switching rod 31, a first sealing ring 32, a second sealing ring 33, a button 34 and an elastic member 15. The switching rod 31 is generally cylindrical, and its interior is hollow to form a sewage pipe 30, and a sewage pipe inlet 311 is provided at its upper position, and a sewage pipe outlet 312 is provided at its lower position. The sewage pipe inlet 311 is connected to the sewage chamber, and the sewage pipe outlet 312 is connected to the outside. The above-mentioned sewage pipe, inlet and outlet, sewage outlet provided in the first chamber 50, and the third switching outlet 45 corresponding to the sewage chamber together form a passage for sewage discharge in this embodiment.

[0049] The first sealing ring 32 is sleeved on the middle position of the switching rod 31. When the switching rod 31 moves axially to the first position (i.e., the downward position), the first sealing ring 32 blocks the second switching water inlet 42. When the switching rod 31 moves axially to the second position (i.e., the upward position), the first sealing ring 32 blocks the first switching water inlet 41.

[0050] The second sealing ring 33 is sleeved on the upper part of the switching rod 31. When the switching rod 31 moves axially to the first position, the second sealing ring 33 isolates the first chamber 50 from the sewage chamber. When the switching rod 31 moves axially to the second position, the second sealing ring 33 leaves the sewage chamber, so that the first chamber 50 is connected with the sewage chamber, and the water in the first chamber 50 can enter the sewage pipe 30 through the sewage pipe inlet 311. In addition, a sealing ring is provided under the second sealing ring 33 for isolating the sewage chamber and the first switching chamber 401, and the sealing ring allows sewage to flow out of the sewage pipe 30 only.

[0051] The elastic member 15 is arranged at the top position of the switching rod 31, and its two ends respectively abut against the housing and the switching rod 31, so as to keep the water inlet 121 connected with the first chamber 50 when the switching rod 31 is not pressed and driven. Specifically, two oppositely arranged through holes for installing the elastic member 15 and the switching rod 31 are provided on the main housing 11, and the first end cover 14 and the second end cover 16 can be sealed and fixedly connected with the above two through holes. When the switching rod 31 passes through the through hole and is inserted into the switching chamber, the switching rod 31 can be fixed by the second end cover 16. At this time, the elastic member 15 is placed at the top position of the switching rod 31, and then the first end cover 14 abuts against the other end of the elastic member 15, so that the installation of the elastic member 15 and the switching rod 31 can be completed.

[0052] During assembly, the water inlet pipe 12 and the water outlet pipe 13 with the water outlet valve are first sealed and fixed to the main shell 11, and then the filter screen 20 is mounted on the filter screen mounting sleeve and sealed and fixed to the main shell 11 together. Thereafter, the switching rod 31 with a sealing ring is inserted into the switching chamber and sealed and fixed by the second end cover 16. Then, the elastic member 15 is placed at the end of the switching rod 31 and sealed and fixed by the first end cover 14. Finally, the button 34 is fixedly installed at the end position of the switching rod 31 to complete the assembly of the water inlet filter screen sewage discharge structure.

[0053] When in use, the water inlet pipe 12 is connected to the water inlet. In the normal water outlet state, the switching rod 31 is in the first position under the action of the elastic member 33, blocking the second switching water inlet 42, and the water outlet valve is in the open state. Water flows from the water inlet path 121 into the first switching chamber 401, then into the first chamber 50, passes through the filter screen 20, enters the second chamber 60, and then flows out through the water outlet 131. In the sewage discharge state, the button 34 at the end of the switching rod 31 is pressed to switch the switching rod 31 from the first switching chamber 401 to the second switching chamber 50. The position moves to the second position, blocking the first switching water inlet 41, and closing the water outlet valve at the same time. Water flows from the water inlet 121 into the second switching chamber 402, and then into the second chamber 60, backwashing the surface of the filter screen 20, and the formed sewage enters the first chamber 50. At this time, the connection between the sewage outlet 52 and the sewage pipe 30 is opened, and the sewage flows out through the sewage pipe 30. After the sewage flows out, release the button 34, the switching rod 31 can be reset to the first position, and normal water outlet can be restored.

[0054] The present invention also provides a shower device, the structure of which is as follows Figure 4 As shown, it includes a main body 70, on which is mounted a water inlet filter and sewage discharge structure in the above-mentioned embodiment, and its specific installation and fixing method can be to connect and fix the water outlet pipe of the shower through the outlet pipe 13, or to install it through other fixing methods.

[0055] A sewage discharge operation port 71 is provided on the main body 70. The position of the sewage discharge operation port 71 corresponds to the end position (i.e., button 34) of the switching rod 31 for pressing after the sewage discharge structure of the water inlet filter is installed on the shower body 70. The user can extend his finger from the sewage discharge operation port 71 to press the button 34 to complete the sewage discharge operation.

[0056] The present invention provides a water inlet filter screen sewage discharge structure and a shower, which realizes the switching of water paths by pressing a switching component, thereby realizing the backwash sewage discharge of the filter screen, has a simple overall structure, convenient sewage discharge operation, and high sewage discharge efficiency.

[0057] The description of the above specification and embodiments is used to explain the protection scope of the present invention, but does not constitute a limitation on the protection scope of the present invention. Through the enlightenment of the present invention or the above embodiments, ordinary technicians in this field can obtain modifications, equivalent substitutions or other improvements to the embodiments of the present invention or part of the technical features thereof through logical analysis, reasoning or limited experiments, which should be included in the protection scope of the present invention.

Claims

1. A water inlet filter screen sewage discharge structure, comprising a housing and a filter screen installed in the housing, characterized in that: It also includes a water outlet valve and a switching assembly; The shell is provided with a water inlet, a water outlet, a sewage discharge channel, a first chamber and a second chamber; The first chamber is connected to the outside of the filter screen, and the second chamber is connected to the inside of the filter screen and the water outlet; The water outlet valve is used to control the on-off of the water outlet; The switching assembly switches the connection between the water inlet and the first chamber or the second chamber by axial movement in the housing, and closes the sewage discharge path when the water inlet is connected to the first chamber, and opens the sewage discharge path when the water inlet is connected to the second chamber; The shell is also provided with a switching chamber, which is independently connected to the first chamber and the second chamber, and correspondingly connected to the water inlet; the sewage discharge channel is arranged in the switching chamber; the switching component switches the connection between the water inlet and the first chamber or the second chamber by axial movement in the switching chamber, and closes the sewage discharge channel when the water inlet is connected to the first chamber, and opens the sewage discharge channel when the water inlet is connected to the second chamber.

2. A water inlet filter screen sewage discharge structure as claimed in claim 1, characterized in that: The switching chamber includes a first switching chamber, a second switching chamber and a sewage chamber which are isolated from each other; the first switching chamber is used to connect the water inlet and the first chamber; the second switching chamber is used to connect the water inlet and the second chamber; the sewage chamber is used to set up a sewage sewage channel; the switching component runs through the first switching chamber, the second switching chamber and the sewage chamber.

3. A water inlet filter screen sewage discharge structure as claimed in claim 2, characterized in that: The switching assembly includes a switching rod and a plurality of seals sleeved on the switching rod; the switching rod is driven by pressing to move axially in the switching chamber, and controls the opening and closing of the first chamber, the second chamber and the water inlet, and the opening and closing of the sewage discharge passage through the seal.

4. A water inlet filter screen sewage discharge structure as claimed in claim 3, characterized in that: The switch lever is provided with a sewage pipeline, and a sewage pipeline inlet, ie, a sewage pipeline outlet, is correspondingly provided; the sewage pipeline inlet is used to communicate with the sewage chamber, and the sewage pipeline outlet is communicated with the outside.

5. A water inlet filter screen sewage discharge structure as claimed in claim 4, characterized in that: The switching assembly further comprises an elastic member; two ends of the elastic member respectively abut against the housing and the switching rod, and are used to keep the water inlet connected to the first chamber when the switching rod is not pressed.

6. A water inlet filter screen sewage discharge structure as claimed in claim 5, characterized in that: It also includes a first end cover and a second end cover which are respectively detachably fixed to the shell; one end of the elastic member abuts against the first end cover; and the second end cover abuts against the other end of the switching rod away from the elastic member.

7. A shower, comprising a main body, characterized in that: The main body is equipped with a water inlet filter and sewage discharge structure as described in any one of claims 3-6.

8. A shower device as claimed in claim 7, characterized in that: The main body is provided with a sewage discharge operation port, and the position of the end portion of the switching rod for pressing corresponds to the position of the sewage discharge operation port.

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