Control valve and urinal

Abstract

The control valve comprises a valve body, a valve element and a first filter screen, the valve body is provided with a main water inlet, a water passing cavity and a main water outlet, the main water inlet is communicated with the water passing cavity, the first filter screen divides the water passing cavity into a raw water cavity and a purified water cavity, and the main water inlet is communicated with the raw water cavity; the valve core controls whether the main water outlet is communicated with the water purification cavity or not; the sewage scraping part comprises a driving part and a sewage scraping part, the valve body is further provided with a backwashing water inlet communicated with the water purification cavity and a sewage outlet capable of being communicated with the raw water cavity, the sewage scraping part is arranged on the driving part, and the driving part is arranged in the water purification cavity; and the driving part is driven by water flow from the backwashing water inlet to drive the dirt scraping part to perform dirt scraping action on the raw water side of the first filter screen. The cleaning device has the functions of scraping washing and back flushing, and the cleaning effect of the first filter screen is greatly improved. The water flow is used for providing driving force for the dirt scraping part, energy conservation and environment protection are achieved, and the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field especially is related to a control valve and urinal. BACKGROUND

[0002] Traditional control valves, such as solenoid valves, angle valves, ball valves, etc., usually do not have filtering function. In the case that the water body contains a lot of impurities, these control valves are prone to blockage, thus failing to meet the actual use requirements. In order to solve this problem, many control valves in the prior art increase a filter screen on the basis of the traditional structure for filtering the particulate impurities in water. However, the filter screen is prone to blockage after being used for a long time, affecting its normal use.

[0003] In view of the problem of filter screen blockage, the common solutions at present include regular replacement of filter screen and increase of backwashing function. Although regular replacement of filter screen can alleviate the blockage problem, it has high cost and usually needs professional personnel to disassemble and assemble the control valve, which is relatively cumbersome to operate. Another solution is to increase the backwashing function on the control valve to clean the filter screen through reverse flushing. However, the existing backwashing mode has limited cleaning effect and cannot completely solve the problem of filter screen blockage. SUMMARY

[0004] The utility model provides a control valve and urinal in view of the technical problems existing in the prior art.

[0005] The utility model adopts the technical scheme that a control valve comprises a valve body, a valve core, a first filter screen, the valve body is provided with a main water inlet, a water passing cavity and a main water outlet, the main water inlet is connected with the water passing cavity, the first filter screen is arranged in the water passing cavity and divides the water passing cavity into a raw water cavity and a clean water cavity, and the main water inlet is connected with the raw water cavity; the valve core is arranged in the valve body and controls whether the main water outlet is connected with the clean water cavity; further comprising a dirt scraping component, the dirt scraping component comprises a driving member and a dirt scraping member, the valve body is further provided with a backwashing water inlet connected with the clean water cavity and a dirt discharge port connected with the raw water cavity, the dirt scraping member is arranged in the driving member and enters the raw water cavity, the driving member is arranged in the clean water cavity, and the driving member is driven by the water flow from the backwashing water inlet to drive the dirt scraping member to perform a dirt scraping action on the raw water side of the first filter screen.

[0006] In a preferred embodiment, the first filter screen is in a cylindrical shape, the inner side of which is the raw water side and the outer side of which is the clean water side; the driving member is a impeller, which is rotatably arranged in the clean water cavity and coaxially arranged with the first filter screen, and the impeller drives the dirt scraping member to move along the circumference of the first filter screen through rotation.

[0007] In a preferred embodiment, a first limiting part is arranged outside the first filter screen, and a second limiting part is arranged inside the water purification cavity, and the impeller is limited between the first limiting part and the second limiting part in the axial direction.

[0008] In a preferred embodiment, a plurality of the scraping members are arranged and spaced along the circumferential direction of the impeller; the scraping member is a scraping rod or a scraping sheet, and extends in the axial direction of the impeller.

[0009] In a preferred embodiment, the impeller comprises a ring body and a plurality of blades which are uniformly distributed along the circumferential direction outside the ring body, and the plurality of blades are arranged to be curved in the same direction; a third limiting part is arranged inside the valve body, and the ring body is sleeved outside the third limiting part; the scraping member is fixedly connected or integrally formed with the ring body.

[0010] In a preferred embodiment, the main water inlet and the sewage outlet are arranged on two sides of the first filter screen in the axial direction.

[0011] In a preferred embodiment, a switching member for controlling whether water flows out of the sewage outlet is further included, and a sewage passage is arranged between the raw water cavity and the sewage outlet in the valve body, and the switching member is connected to the sewage passage to control whether the sewage passage is connected or disconnected.

[0012] In a preferred embodiment, the valve body comprises a cover body and a shell, the cover body is provided with the main water inlet, and the shell is provided with the main water outlet, the sewage outlet and a mounting opening, the cover body is connected to the mounting opening of the shell, and the cover body and the shell jointly enclose the water passage.

[0013] In a preferred embodiment, a water outlet passage is arranged between the water purification cavity and the main water outlet in the valve body, and the valve core is arranged on the water outlet passage; a second filter screen is further included, which is arranged on the water outlet passage and located on the upstream side of the valve core; the mesh number of the second filter screen is greater than that of the first filter screen; and the valve core is a pulse valve core.

[0014] The utility model further provides a urinal, including urinal body, still include the control valve with back flush function of above-mentioned utility model, this control valve installs on the flushing waterway of urinal body, controls whether the urinal flushes.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. Because the scraping component of this utility model includes the aforementioned driving component and scraping component, and the valve body is also provided with the aforementioned backwash inlet and outlet, this utility model can scrape and backwash the first filter screen, thereby greatly improving the cleaning effect of the first filter screen, effectively extending the service life of the first filter screen, reducing the frequency of replacement of the first filter screen, and reducing the trouble of disassembling and assembling the first filter screen. In particular, this utility model uses water flow to provide driving force for the scraping component, which is not only more energy-efficient and environmentally friendly, but also significantly improves the user experience.

[0017] 2. The preferred driving component is an impeller, which is not only simple and reliable in structure, highly adaptable, and sensitive to start-up, but also can efficiently convert the kinetic energy of water into mechanical energy. When the water flow is sufficient, it can drive the scraping component to continuously scrape dirt, thereby further improving the cleaning effect of the first filter screen. Attached Figure Description

[0018] Figure 1 This is an exploded view of the control valve of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the control valve of this utility model;

[0020] Figure 3 This is a top view of the control valve of this utility model;

[0021] Figure 4 yes Figure 3 AA section view;

[0022] Figure 5 yes Figure 3 BB cross-sectional view;

[0023] In the diagram, 1. Valve body; 11. Housing; 111. Main outlet; 112. Backwash inlet; 113. Drain outlet; 12. Cover; 121. Main inlet; 122. Second limiting part; 123. Third limiting part; 13. Raw water chamber; 14. Clean water chamber; 15. Drainage channel; 16. Outlet channel; 2. Pulse valve core; 21. Solenoid valve head; 22. Valve core seat; 23. Diaphragm; 3. First filter screen; 31. First limiting part; 4. Impeller; 41. Annular body; 42. Blade; 5. Scraper bar; 6. Angle valve switch; 7. Second filter screen. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, the control valve and urinal of the present invention are not limited to the embodiments.

[0025] In the utility model, the terms "first", "second" and the like are used only to distinguish similar objects, and are not used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. In addition, in the description of the utility model, "a plurality of" means two or more, unless otherwise specified.

[0026] Please see Figures 1-5 The utility model discloses a control valve, including valve body 1, valve core, first filter screen 3 and scraping dirty parts, valve body 1 is equipped with main water inlet 121, water passing cavity, main water outlet 111, and main water inlet 121 is connected through water cavity, and first filter screen 3 is arranged in water passing cavity, and water passing cavity is divided into raw water cavity 13 and clean water cavity 14, and main water inlet 121 is communicated with raw water cavity 13, valve core is arranged in valve body 1, and whether main water outlet 111 is communicated with clean water cavity 14 is controlled. Scraping dirty parts include driving element and scraping dirty element, and valve body 1 is also equipped with backflushing water inlet 112 communicated with clean water cavity 14 and blowdown opening 113 that can be communicated with raw water cavity 13, and scraping dirty element is equipped with driving element and enters raw water cavity 13, and driving element is arranged in clean water cavity 14, and driving element is driven by the water flow from backflushing water inlet 112 and scraping dirty element to remove the impurities on the raw water side of first filter screen 3. Therefore, the utility model can scrape and wash first filter screen 3, and the cleaning effect of first filter screen 3 is greatly improved.

[0027] First filter screen 3 is cylindrical, and the inner side is the raw water side, and the outer side is the clean water side, and the bottom of first filter screen 3 is hollow. Main water inlet 121 and blowdown opening 113 are arranged on the two sides of the axial direction of first filter screen 3. The specification of first filter screen 3 is 60 mesh, which can effectively filter out large particles in water.

[0028] As a preferred mode, the driving element is an impeller 4, which is rotatably arranged in the clean water cavity 14 and coaxially arranged with the first filter screen 3, and the impeller 4 drives the scraping dirty element to move along the circumference of the first filter screen 3 by rotating. Therefore, when the water flow continuously provides driving force for the impeller 4, the impeller 4 can continuously rotate the scraping dirty element, so as to repeatedly scrape and wash the first filter screen 3, so as to further improve the cleaning effect of the first filter screen 3. The backflushing water inlet 112 is specifically arranged on the outer side of the impeller 4, and the diameter of the backflushing water inlet 112 is much smaller than that of the main water inlet 121, so that the backflushing water inlet 112 can accelerate the water flow, thereby improving the impact force of the water flow on the impeller 4, and further improving the rotating speed of the impeller 4.

[0029] In other embodiments, the driving member is driven by water flow to move and drive the scraping member to move and scrape the raw water side of the first filter screen 3, at this time, the first filter screen 3 can be in a cylindrical shape, and the scraping member is preferably annular, and the driving member drives the scraping member to move along the axial direction of the first filter screen 3 to achieve the scraping function; the first filter screen 3 can also be in a flat sheet shape, and the scraping member can be in a rod shape or a sheet shape, and the driving member drives the scraping member to move along the raw water side of the first filter screen 3 to achieve the scraping function.

[0030] The first filter screen 3 is provided with a first limiting portion 31, and the clean water cavity 14 is provided with a second limiting portion 122, and the impeller 4 is limited between the first limiting portion 31 and the second limiting portion 122 in the axial direction, so as to avoid the impeller 4 from moving in the axial direction, and to make the impeller 4 work stably. The first limiting portion 31 is specifically a ring-shaped structure arranged at one end of the first filter screen 3 close to the main water inlet 121, but is not limited thereto. The second limiting portion 122 is annular and located on one side of the first filter screen 3 close to the main water inlet 121.

[0031] The scraping member is provided in a plurality of forms, and the plurality of scraping members are distributed along the circumference of the impeller 4. In the embodiment, the scraping member is a scraping rod 5 and extends along the axial direction of the impeller 4. In other embodiments, the scraping member is a scraping sheet or the like.

[0032] The impeller 4 includes a ring body 41 and a plurality of blades 42 uniformly distributed along the circumference of the ring body 41, and the plurality of blades 42 are arranged in the same direction. The valve body 1 is provided with a third limiting portion 123, the ring body 41 is sleeved outside the third limiting portion 123, and the third limiting portion 123 is annular. The scraping member (i.e. the scraping rod 5) is fixedly connected or integrally formed with the ring body 41. Specifically, in the embodiment, the scraping member (i.e. the scraping rod 5) is integrally formed with the ring body 41, but is not limited thereto. The scraping member (i.e. the scraping rod 5) can also be fixed to the ring body 41 of the impeller 4 by clamping, welding, threaded connection or the like.

[0033] The utility model also includes a switching member for controlling whether the sewage outlet 113 discharges water or not, and the switching member is fixed to the valve body 1, or the switching member is detachably connected to the valve body 1. Specifically, the switching member is an angle valve switch 6, the valve body 1 is provided with a sewage passage 15 between the raw water cavity 13 and the sewage outlet 113, and the switching member (i.e. the angle valve switch 6) is connected to the sewage passage 15 to control the sewage passage 15 to be conducted or disconnected. In other embodiments, the switching member is a plug or a sealing cover or the like, and is detachably matched at the sewage outlet 113 to control whether the sewage outlet 113 is opened or not. In other embodiments, the utility model does not provide the switching member, but is connected with a sewage assembly capable of controlling whether the sewage is discharged or not. The sewage assembly can include a sewage pipeline and a valve provided on the sewage pipeline, and the valve can be an angle valve, a solenoid valve or the like.

[0034] The valve body 1 comprises a cover 12 provided with a main water inlet 121 and a shell 11 provided with a main water outlet 111, a blowdown outlet 113 and a mounting opening, the cover 12 is connected to the mounting opening of the shell 11 and the two enclose a water passing cavity. The mounting opening is located at one side of the first filter screen 3 in the axial direction, the second limiting part 122 and the third limiting part 123 are specifically provided on the cover 12, and the third limiting part 123 is communicated with the main water inlet 121, so that the water entering the main water inlet 121 flows into the first filter screen 3 through the inner cavity of the third limiting part 123.

[0035] The valve body 1 is provided with a water outlet channel 16 between the water purifying cavity 14 and the main water outlet 111, and a valve core is arranged on the water outlet channel 16 to control the opening and closing of the water outlet channel 16. The utility model also comprises a second filter screen 7, which is arranged on the water outlet channel 16 and located on the upstream side of the valve core. The mesh number of the second filter screen 7 is greater than that of the first filter screen 3, so as to realize more fine filtration. Specifically, the first filter screen 3 adopts 60 meshes, which can filter out large particles in water, and the second filter screen 7 adopts 120 meshes, which can filter out smaller particles in water.

[0036] The valve core is preferably a pulse valve core 2, which is composed of an electromagnetic valve head 21, a valve core seat 22 and a diaphragm 23. Therefore, the utility model constitutes a pilot type pulse electromagnetic valve. In other embodiments, the valve core is a mechanical valve core controlled by human or an electrically controlled valve core driven by a motor.

[0037] The utility model discloses a control valve with reverse flushing, when application, connect main water inlet 121 with main water supply line, connect backwash water inlet 112 with backwash water supply line, wherein, the first valve is arranged on main water supply line, the second valve is arranged on backwash water supply line.

[0038] In the normal working state, when the valve core is opened, the water flow from the main water inlet 121 enters the raw water cavity 13, and then flows to the water purifying cavity 14 after being filtered by the first filter screen 3, and finally is output from the main water outlet 111, as shown in the figure, the arrow in the figure shows the water flow direction. In the normal working state, the first valve is opened, the second valve is closed, and the angle valve switch 6 is also in the closed state. Figure 4

[0039] When the first filter screen 3 needs to be cleaned, the first valve is closed, the second valve and the angle valve switch 6 are opened, then the water enters from the backwash water inlet 112, drives the impeller 4 to rotate, and makes the impeller 4 drive each scraper to move around the inner circumferential surface of the first filter screen 3 to realize the scraping action, at the same time, the water entering the water purifying cavity 14 reversely impacts the first filter screen 3, and the dirt on the first filter screen 3 and the dirt scraped by the scraper are flushed to the blowdown outlet 113, and finally flow out from the blowdown outlet 113. ​

[0040] After cleaning the first filter screen 3, the second valve and the angle valve switch 6 are closed, and the first valve is opened, so as to prepare for the subsequent normal filtering work.

[0041] Therefore, the first filter screen 3 can be scraped and washed and back-flushed, the cleaning effect of the first filter screen 3 is greatly improved, the service life of the first filter screen 3 can be effectively prolonged, the frequency of replacing the first filter screen 3 is reduced, and the trouble of disassembling the first filter screen 3 is reduced. The utility model uses water flow as the driving force of the scraping dirt component, is not only more energy-saving and environment-friendly, but also significantly improves the use experience of the user.

[0042] The utility model discloses a urinal, including the urinal body, still include as above the control valve of the utility model discloses a control valve with backflushing function, this control valve installs on the flush waterway of urinal body, to control whether the urinal flushes. Specifically, the control valve of the utility model is installed on the back side top of the urinal body. Since the control valve of the utility model is electromagnetic valve, therefore, the inductor can be arranged on the urinal body, for example infrared inductor etc. are used with electromagnetic valve and its main control board, make the urinal of the utility model can realize the function of automatic flushing.

[0043] The structure and working principle of the control valve are described in the foregoing description, and will not be repeated here.

[0044] The utility model discloses a control valve and urinal, and the part not involved is same as prior art or can be realized by prior art.

[0045] The above embodiment is only used to further illustrate the control valve and urinal of the utility model, but the utility model is not limited to the embodiment, and any simple modification, equivalent change and modification according to the technical essence of the utility model of the above embodiment all fall into the protection scope of the utility model technical scheme.

Claims

1. A control valve, comprising a valve body, a valve core, and a first filter screen, wherein the valve body has a main inlet, a water passage chamber, and a main outlet, the main inlet being connected to the water passage chamber, the first filter screen being disposed within the water passage chamber and dividing the water passage chamber into a raw water chamber and a clean water chamber, and the main inlet being connected to the raw water chamber; the valve core being disposed within the valve body and controlling whether the main outlet is connected to the clean water chamber; characterized in that: The valve body is further provided with a backwashing water inlet communicating with the clean water cavity and a blow-off port communicating with the raw water cavity, the scraping member is arranged on the driving member and enters the raw water cavity, the driving member is arranged in the clean water cavity, and the driving member is driven by water flow from the backwashing water inlet to drive the scraping member to scrape the raw water side of the first filter screen.

2. The control valve according to claim 1, characterized in that: The first filter screen is in a cylindrical shape, the inner side of the first filter screen is the raw water side, and the outer side of the first filter screen is the clean water side; the driving member is a impeller, the impeller is arranged coaxially with the first filter screen and rotates around the axis of the impeller, and the impeller drives the scraping member to move along the circumference of the first filter screen through rotation.

3. The control valve of claim 2, wherein: The outer side of the first filter screen is provided with a first limiting portion, the clean water cavity is provided with a second limiting portion, and the impeller is limited between the first limiting portion and the second limiting portion in the axial direction.

4. The control valve of claim 2, wherein: The scraping member is arranged in a plurality of forms, the plurality of scraping members are arranged at intervals along the circumference of the impeller; the scraping member is a scraping rod or a scraping sheet and extends along the axial direction of the impeller.

5. Control valve according to any of claims 2-4, characterized in that: The impeller comprises an annular body and a plurality of blades arranged uniformly on the outer side of the annular body in the circumferential direction, the plurality of blades are arranged in the same direction; the valve body is provided with a third limiting portion, and the annular body is arranged outside the third limiting portion; and the scraping member is fixedly connected to or integrally formed with the annular body.

6. The control valve of claim 2, wherein: The main water inlet and the blow-off port are arranged on the two sides of the first filter screen in the axial direction.

7. The control valve of claim 1, wherein: The valve body is further provided with a switching member for controlling whether water flows out of the blow-off port; the valve body is provided with a blow-off channel between the raw water cavity and the blow-off port, and the switching member is connected to the blow-off channel to control whether the blow-off channel is connected or disconnected.

8. The control valve of claim 1, wherein: The valve body comprises a cover body and a shell, the cover body is provided with the main water inlet, the shell is provided with the main water outlet, the blow-off port and a mounting port, the cover body is connected to the mounting port of the shell, and the cover body and the shell jointly enclose the water passing cavity.

9. The control valve of claim 1, wherein: The valve body is further provided with a water outlet channel between the clean water cavity and the main water outlet, and the valve core is arranged on the water outlet channel; the valve body is further provided with a second filter screen, the second filter screen is arranged on the water outlet channel and located on the upstream side of the valve core; the mesh number of the second filter screen is greater than that of the first filter screen; and the valve core is a pulse valve core.

10. A urinal comprising a urinal body, characterised in that: The valve body is further provided with a control valve with a backwashing function as claimed in any one of claims 1-9, the control valve is installed on the flushing water path of the urinal body to control whether the urinal flushes.

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