Pre-filter with stroke position controlled by photoelectricity and electric pollution discharge and valve closing functions

Abstract

The utility model relates to a prefilter with the stroke position controlled by photoelectricity and the electric pollution discharge valve closing function, which comprises a controller and a machine head, the machine head is provided with a water inlet channel, a water outlet channel and a filter bottle assembling channel, a filter bottle is arranged through the filter bottle assembling channel, a filter assembly is arranged in the filter bottle, a pollution discharge cavity is arranged at the bottom of the filter bottle, and the controller is connected with the controller. The device further comprises a driving assembly, a position detection assembly, a transmission assembly and a pollution discharge control assembly. The driving assembly comprises a motor, the motor is fixed to the machine head, and the machine head is provided with a transmission shaft cavity matched with the output end of the motor. The position detection assembly comprises an initial position photoelectric sensor and a pollution discharge position photoelectric sensor which are each composed of a light source signal generating unit and a light source signal receiving unit. The pre-filter has the functions of automatically switching pollution discharge and recovering filtering modes, and / or integrates a valve closing protection function during water leakage, namely, a water path can be closed in a water leakage state.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of front filter with electric blowdown closing valve function by photoelectric control stroke position, belong to water purification equipment technical field. BACKGROUND

[0002] The prior art front filter includes: valve head, filter bottle connected with the valve head at upper end, drainage assembly connected with the lower end of filter bottle, filter screen framework is arranged in filter bottle, filter screen framework is sleeved with filter screen on outer wall. In the process of use, water flows into the gap between filter bottle and filter screen from the water inlet of valve head, flows into the center of filter screen framework after being filtered by filter screen, and then flows to the water outlet of valve head from the center of filter screen framework.

[0003] In the use process of front filter, impurities attached to the surface of filter screen need to be cleaned in situ irregularly, and then discharged through drainage assembly, and the efficient operation of cleaning / scraping structure is crucial, in the prior art, there are cleaning / scraping structures driven by motor, impeller-driven cleaning / scraping structures, and backwashing is also an efficient means for cleaning the filter screen of front filter, but the cleaning / scraping structure of the prior art is not controlled by a driving motor arranged at the top of valve head, and the mode switching of normal filtration and backwashing is realized; In addition, full-automatic cleaning and blowdown of front filter is also the development trend of such products in the future; Furthermore, it is inevitable that there will be water leakage in the use process of front filter, and it is crucial to close the water inlet channel and water outlet channel of front filter in time when water leakage is found, and the technical personnel in the art discusses the driving motor arranged at the top of valve head to realize the closing of valve when water leakage occurs, i.e. closing the water inlet channel and water outlet channel at the same time, the utility model solves the technical problems mentioned above, and provides a kind of front filter with electric blowdown closing valve function by photoelectric control stroke position, which is more optimized in structure and easy to realize industrialization. SUMMARY

[0004] One of the purposes of the utility model is to solve the deficiencies of the prior art front filter, and provide a kind of front filter with electric blowdown closing valve function by photoelectric control stroke position. The front filter has the functions of automatically switching blowdown and restoring filtration mode, and / or integrating valve closing protection function when water leakage occurs, i.e. can close waterway in water leakage state.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A front filter with electrically-driven blowdown function and photoelectrically-controlled stroke position, comprising a controller and a head, the head being provided with a water inlet channel, a water outlet channel and a filter bottle assembly channel, a filter bottle being arranged through the filter bottle assembly channel, a filter assembly being arranged in the filter bottle, a blowdown cavity being arranged at the bottom of the filter bottle, and further comprising a driving assembly, a position detection assembly, a transmission assembly and a blowdown control assembly;

[0007] The driving assembly comprises a motor, the motor being fixed to the head, the head being provided with a transmission shaft cavity adapted to the output end of the motor;

[0008] The position detection assembly comprises an initial position switch and a blowdown position switch, both being selected from a micro switch or a photoelectric sensor;

[0009] The transmission assembly comprises a transmission shaft, the transmission shaft being coupled to the output end of the motor and rotationally fitted to the transmission shaft cavity, the blowdown control assembly being arranged at the end of the transmission shaft, the transmission shaft being axially movable under the action of the motor, and the transmission shaft being further provided with a sealing portion;

[0010] The blowdown control assembly comprises a blowdown plug and a sealing element, the blowdown plug comprising a connecting portion and a functional portion, the connecting portion or the functional portion being provided with a blowdown opening, the connecting portion being connected to the transmission portion, the sealing element being arranged at the functional portion, and the blowdown plug being capable of opening or closing the blowdown channel through the blowdown opening under the drive of the driving assembly;

[0011] The filter assembly comprises a filter framework, a filter element and a filter framework water inlet channel, the transmission shaft being inserted into the filter framework and being axially slidingly and sealingly connected;

[0012] The transmission shaft is axially moved from the initial position to the blowdown position, the sealing portion is capable of closing the filter framework water inlet channel, and at the same time the blowdown plug opens the blowdown channel of the blowdown cavity; the transmission shaft is axially moved to the initial position, the filter framework water inlet channel is opened, and at the same time the blowdown plug closes the blowdown channel of the blowdown cavity;

[0013] The initial position is the position of the front filter in the filtering state, the motor, the initial position switch and the blowdown position switch are electrically connected to the controller.

[0014] Preferably, the position detection assembly further comprises a valve closing position switch electrically connected to the controller, selected from a micro switch or a photoelectric sensor, and located below the blowdown position switch, the sealing portion is provided with a first sealing portion and a second sealing portion; when the motor drives the transmission shaft to continue running from the blowdown position to the valve closing position, the second sealing portion closes the water inlet channel close to the water inlet of the filter framework water inlet channel and the inner side water outlet of the water outlet channel, thereby achieving valve closing.

[0015] Preferably, the initial position switch, the blowdown position switch and the valve closing position switch all adopt photoelectric sensors, the photoelectric sensor is composed of a light source signal generating unit and a light source signal receiving unit.

[0016] Preferably, the filter framework is a filter screen framework, the filter element is a filter screen or PP cotton or a filter membrane; or the filter framework is a laminated framework, the filter element is a filter laminated sheet; the controller can be connected with a remote server or a user terminal through a wireless communication mode, the controller is provided with a remote communication unit, and the remote communication unit comprises a wireless communication module electrically connected with a circuit board of the controller.

[0017] Preferably, the controller has a processor function, the wireless communication module is any one or a combination of two of a 2G module, a 3G module, a 4G module, a 5G module and a WiFi module, and the remote server and the user terminal can receive information or remotely control the controller through the wireless communication module.

[0018] Preferably, at least one MCU is integrated on the circuit board of the controller, and the working of components electrically connected with the MCU is controlled by the MCU, and the wireless communication module is also integrated on the circuit board of the controller.

[0019] Preferably, the diameter of the connecting portion is smaller than that of the functional portion, and a gap between the outer periphery of the connecting portion and the blowdown cavity constitutes a blowdown opening.

[0020] Preferably, the transmission shaft comprises a rotating shaft and a transmission rod, the rotating shaft is provided with external threads, the transmission shaft cavity is provided with internal threads, the rotating shaft and the transmission rod are detachably connected, and the motor output shaft of the motor is detachably connected with the rotating shaft.

[0021] Preferably, the rotating shaft and the transmission rod are sleeved and provided with a snap spring assembly opening and are fixed by a snap spring, the end portion of the rotating shaft is provided with a special-shaped hole or a special-shaped portion, the end portion of the motor output shaft is provided with a matched special-shaped portion or a special-shaped hole, and the special-shaped hole and the special-shaped portion are connected in a matched mode.

[0022] Preferably, the driving assembly further comprises a motor fixing seat, the top of the motor fixing seat is provided with a motor assembly groove, and the motor is clamped in the motor assembly groove.

[0023] Preferably, the transmission shaft is provided with a reflecting surface matched with the position detection assembly, and the reflecting surface is a plane or an arc surface.

[0024] The utility model discloses the beneficial effect is:

[0025] The valve head structure is more optimized, and convenient to install, use and maintain, sewage and leakage protection closing valve action are controlled through a motor, compact structure, and high degree of automation and reliability. DRAWINGS

[0026] Figure 1 It is the structure schematic diagram of the utility model;

[0027] Figure 2 It is the structure schematic diagram of the utility model;

[0028] Figure 3 It is the structure schematic diagram of the utility model;

[0029] Figure 4 It is the structure schematic diagram of the utility model filter state;

[0030] Figure 5 It is the structure schematic diagram of the utility model pollution state;

[0031] Figure 6 It is the structure schematic diagram of the utility model valve closing state.

[0032] In the drawing: 1. motor cover, 2. motor, 3. spring, 4, gasket, 5a, upper limit switch, 5b, lower limit switch, 6a, initial position photoelectric sensor, 6b, pollution position photoelectric sensor, 6c, valve closing position photoelectric sensor, 7, screw, 8, motor fixing base, 9, motor output shaft, 10, rotating shaft, 11, head. DETAILED DESCRIPTION

[0033] The technical scheme of the utility model will be further specifically explained below by specific embodiments and in conjunction with the drawings.

[0034] As Figures 1-6 shown, a front filter with electric pollution function and photoelectric control stroke position includes a controller and a head, the head is provided with a water inlet channel, a water outlet channel and a filter bottle assembly channel, a filter bottle is arranged through the filter bottle assembly channel, a filter assembly is arranged in the filter bottle, a pollution cavity is arranged at the bottom of the filter bottle, and the front filter further includes a driving assembly, a position detection assembly, a transmission assembly and a pollution control assembly.

[0035] The driving assembly includes a motor 2, the motor 2 is fixed with the head, and the head is provided with a transmission shaft cavity matched with the output end of the motor 2.

[0036] The position detection assembly includes an initial position photoelectric sensor 6a and a pollution position photoelectric sensor 6b, and both are composed of a light source signal generating unit and a light source signal receiving unit.

[0037] The transmission assembly includes a transmission shaft, the transmission shaft is connected with the output end of the motor 2 and rotationally matched with the transmission shaft cavity, and the pollution control assembly is arranged at the end of the transmission shaft, the transmission shaft can move axially under the action of the motor 2, and the transmission shaft is further provided with a sealing part.

[0038] The pollution control assembly includes a pollution plug body and a sealing element, the pollution plug body includes a connecting part and a functional part, the connecting part or the functional part is provided with a pollution port, the connecting part is connected with the transmission part, the sealing element is arranged on the functional part, and the pollution plug body can open or close the pollution channel through the pollution port under the drive of the driving assembly.

[0039] The filter assembly comprises a filter framework, a filter element and a filter framework water inlet channel, the transmission shaft is inserted into the filter framework and is in axial sliding seal connection;

[0040] The transmission shaft moves from the initial position to the blowdown position in the axial direction, the sealing part can close the filter framework water inlet channel, and the blowdown plug body opens the blowdown channel of the blowdown cavity; moving to the initial position in the axial direction, the filter framework water inlet channel is opened, and the blowdown plug body closes the blowdown channel of the blowdown cavity;

[0041] The initial position is the position of the pre-filter in the filtering state, the motor 2, the initial position photoelectric sensor 6a and the blowdown position photoelectric sensor 6b are electrically connected with the controller.

[0042] Specifically, the position detection assembly further comprises a valve closing photoelectric sensor 6c located below the blowdown position photoelectric sensor 6b, the sealing part is provided with a first sealing part and a second sealing part; when the motor 2 drives the transmission shaft to continue running from the blowdown position to the valve closing position, the second sealing part closes the water inlet channel close to the water inlet of the filter framework water inlet channel and the inner side water outlet of the water outlet channel, realizing valve closing, the valve closing photoelectric sensor 6c is composed of a light source signal generating unit and a light source signal receiving unit, and is electrically connected with the controller.

[0043] Specifically, the filter framework is a filter screen framework, and the filter element is a filter screen, PP cotton or a filter membrane; or the filter framework is a laminated framework, and the filter element is a filter laminated sheet; the controller can be connected with a remote server or a user terminal through a wireless communication mode, the controller is provided with a remote communication unit, and the remote communication unit comprises a wireless communication module electrically connected with a circuit board of the controller.

[0044] Specifically, the controller has a processor function, the wireless communication module is any one or a combination of two of a 2G module, a 3G module, a 4G module, a 5G module and a WiFi module, and the remote server and the user terminal can receive information or remotely control the controller through the wireless communication module.

[0045] Specifically, at least one MCU is integrated on the circuit board of the controller, the work of the components electrically connected with the MCU is controlled via the MCU, and the wireless communication module is also integrated on the circuit board of the controller.

[0046] Specifically, the diameter of the connecting part is smaller than the diameter of the functional part, and the gap between the outer periphery of the connecting part and the blowdown cavity constitutes a blowdown port.

[0047] Specific said, the transmission shaft includes rotating shaft 10 and transmission rod, rotating shaft 10 is provided with external thread, transmission shaft cavity is provided with internal thread, rotating shaft 10 and transmission rod are detachably connected, the motor output shaft 9 of motor 2 and rotating shaft 10 are detachably connected, such as through the clamping of snap spring 3, and the motor output shaft 9 and motor fixed seat 8 are provided with gasket 4, prevent liquid leakage.

[0048] Specific said, the rotating shaft 10 and transmission rod sleeve joint, and be provided with snap spring 3 assembly mouth, through snap spring 3 fixed, the end of rotating shaft 10 is provided with special-shaped hole or special-shaped part, the end of motor output shaft 9 is provided with the special-shaped part or special-shaped hole matched, is connected through the cooperation of special-shaped hole and special-shaped part.

[0049] Specific said, the drive assembly further includes motor fixed seat 8, motor fixed seat 8 top is provided with motor assembly slot, motor 2 is clamped in motor assembly slot, is fixed through motor cover 1, motor fixed seat 8 and head 11 are fixed through screw 7.

[0050] Specific said, the transmission shaft is provided with reflecting surface, and is matched with position detection assembly, and the reflecting surface is plane or arc surface.

[0051] Further, the upper position of the initial position photoelectric sensor 6a is also provided with the first limit switch 5a, and the lower position of the valve closing position photoelectric sensor 6c is also provided with the second limit switch 5b, the first and second limit switches can control the axial movement distance of the transmission shaft, and the reliability of the position detection assembly is ensured.

[0052] The beneficial effects of the utility model are:

[0053] The valve head structure is more optimized, and installation, use and maintenance are convenient, the valve closing action of blowdown and / or leakage protection is controlled by a motor, the structure is compact, and the automation degree and reliability are high.

[0054] The above-mentioned embodiment is only a preferred scheme of the utility model, and does not limit the utility model in any form, and other variants and modifications can be made without exceeding the technical scheme recorded in the claims.

Claims

1. A pre-filter with an electrically operated drain valve function and photoelectrically controlled stroke position, comprising a controller and a head, wherein the head is provided with an inlet channel, an outlet channel, and a filter bottle assembly channel, a filter bottle is arranged through the filter bottle assembly channel, a filter assembly is arranged inside the filter bottle, and a drain chamber is provided at the bottom of the filter bottle, characterized in that: It also includes drive components, position detection components, transmission components, and sewage control components; The drive assembly includes a motor (2), which is fixed to the machine head. The machine head is provided with a transmission shaft cavity adapted to the output end of the motor (2). The position detection component includes an initial position switch and a drain position switch, both of which are selected from micro switches or photoelectric sensors; The transmission assembly includes a transmission shaft, which is connected to the output end of the motor (2) and rotates with the transmission shaft cavity. The sewage control component is located at the end of the transmission shaft. The transmission shaft can move axially under the action of the motor (2). The transmission shaft is also provided with a sealing part. The sewage control component includes a sewage hydrant body and a sealing element. The sewage hydrant body includes a connecting part and a functional part. The connecting part or the functional part is provided with a sewage outlet and is connected to the transmission part through the connecting part. The sealing element is provided in the functional part. Under the drive of the drive component, the sewage hydrant body can open or close the sewage channel through the sewage outlet. The filter assembly includes a filter frame, filter elements, and a filter frame inlet channel. The drive shaft is inserted into the filter frame and is axially slidingly and sealed. When the drive shaft moves axially from the initial position to the drain position, the sealing part can close the water inlet channel of the filter frame, while the drain plug opens the drain channel of the drain chamber; when it moves axially to the initial position, the water inlet channel of the filter frame opens, while the drain plug closes the drain channel of the drain chamber. The initial position is the position where the pre-filter is in the filtering state. The motor (2), the initial position switch, and the drain position switch are all electrically connected to the controller.

2. A pre-filter with an electric drain valve function and photoelectrically controlled stroke position according to claim 1, characterized in that: The position detection component also includes a valve-closed position switch electrically connected to the controller, selected from a micro switch or a photoelectric sensor, located below the drain position switch. The sealing part is provided with a first sealing part and a second sealing part. When the motor (2) drives the transmission shaft to continue running from the drain position to the valve-closed position, the second sealing part closes the inlet of the water inlet channel near the filter frame water inlet channel and the inner outlet of the water outlet channel, thereby closing the valve.

3. A pre-filter with an electric drain valve function and photoelectrically controlled stroke position according to claim 2, characterized in that: The initial position switch, the drain position switch, and the valve close position switch all employ photoelectric sensors, which consist of a light source signal generating unit and a light source signal receiving unit.

4. A pre-filter with an electric drain valve function and photoelectrically controlled stroke position according to claim 1, 2, or 3, characterized in that: The filter frame is a filter mesh frame, and the filter element is a filter mesh, PP cotton, or filter membrane; or the filter frame is a stacked frame, and the filter element is a stacked filter disc; the controller can be connected to a remote server or user terminal via wireless communication, and the controller is equipped with a remote communication unit, which includes a wireless communication module electrically connected to the controller's circuit board.

5. A pre-filter with an electric drain valve function and photoelectrically controlled stroke position according to claim 4, characterized in that: The controller has a processor function, and the wireless communication module is any one or a combination of two of the following: 2G module, 3G module, 4G module, 5G module and WiFi module. The remote server and user terminal can receive information or remotely control the controller through the wireless communication module.

6. A pre-filter with an electric drain valve function and photoelectrically controlled stroke position according to claim 4, characterized in that: The controller has at least one MCU integrated on its circuit board, which controls the operation of its electrically connected components. The wireless communication module is also integrated on the controller's circuit board.

7. A pre-filter with an electric drain valve closing function and photoelectrically controlled stroke position according to claim 1, 2, or 3, characterized in that: The diameter of the connecting part is smaller than the diameter of the functional part, and the gap between the outer periphery of the connecting part and the sewage discharge chamber constitutes the sewage discharge port.

8. A pre-filter with an electric drain valve function and photoelectrically controlled stroke position according to claim 1, 2, or 3, characterized in that: The transmission shaft includes a rotating shaft (10) and a transmission rod. The rotating shaft (10) is provided with an external thread, and the transmission shaft cavity is provided with an internal thread. The rotating shaft (10) and the transmission rod are detachably connected. The motor output shaft (9) of the motor (2) is detachably connected to the rotating shaft (10).

9. A pre-filter with an electric drain valve function and photoelectrically controlled stroke position according to claim 8, characterized in that: The rotating shaft (10) is sleeved with the transmission rod and is provided with a snap ring (3) assembly port, which is fixed by the snap ring (3). The end of the rotating shaft (10) is provided with a special-shaped hole or special-shaped part, and the end of the motor output shaft (9) is provided with a matching special-shaped part or special-shaped hole, which is connected by the cooperation of the special-shaped hole and the special-shaped part.

10. A pre-filter with an electric drain valve function and photoelectrically controlled stroke position according to claim 1, 2, or 3, characterized in that: The drive assembly also includes a motor mounting base (8), the top of which is provided with a motor mounting slot, and the motor (2) is snapped into the motor mounting slot. The drive shaft is provided with a reflective surface, which is adapted to the position detection assembly. The reflective surface is a plane or an arc surface.

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