CN213912570U - a pre-filter - Google Patents
a pre-filter Download PDFInfo
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- CN213912570U CN213912570U CN202022601269.9U CN202022601269U CN213912570U CN 213912570 U CN213912570 U CN 213912570U CN 202022601269 U CN202022601269 U CN 202022601269U CN 213912570 U CN213912570 U CN 213912570U
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- rotating member
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Abstract
本实用新型提供了一种前置过滤器，属于净水器技术领域。它解决了现有前置过滤器内清洗排污不方便的问题。本前置过滤器包括具有排污端的壳体，壳体内设有圆筒状的滤芯，滤芯的外周面上包裹有刷件，壳体内穿设有与刷件相固连的阀杆，刷件与滤芯轴向固定，刷件的上部设有螺纹段，壳体内设有与螺纹段配合的螺纹部，排污端处设有与滤芯周向固定的限位件，刷件能通过转动使螺纹段与螺纹部脱开配合，排污端处还设有封闭结构，当刷件上升时所述封闭结构能使排污端通路，当刷件下降时所述封闭结构能使排污端封闭。这样设计使得前置过滤器内清洗的方便程度得到大幅度的提升，并能通过在阀杆处安装控制器来实现了本前置过滤器的全自动内清洗排污。
The utility model provides a pre-filter, which belongs to the technical field of water purifiers. It solves the problem of inconvenient cleaning and sewage discharge in the existing pre-filter. The pre-filter includes a casing with a sewage discharge end, a cylindrical filter element is arranged in the casing, a brush member is wrapped on the outer peripheral surface of the filter element, and a valve rod fixedly connected with the brush member is penetrated in the casing. The filter element is axially fixed, the upper part of the brush piece is provided with a threaded section, the shell is provided with a threaded section matched with the threaded section, and the drain end is provided with a limiter fixed circumferentially with the filter element, and the brush piece can rotate to make the threaded section and the filter element rotate. The threaded portion is disengaged, and a closed structure is also provided at the discharge end, which enables the passage of the discharge end when the brush member rises, and can close the discharge end when the brush member descends. This design greatly improves the convenience of cleaning in the pre-filter, and can realize the automatic internal cleaning and sewage discharge of the pre-filter by installing a controller at the valve stem.
Description
Technical Field
The utility model belongs to the technical field of the water purifier, a filter is related to, especially, relate to a leading filter.
Background
The existing pre-filter generally comprises a shell with a water inlet end, a water outlet end and a sewage discharge end, a fixed filter element is generally arranged in the shell, the filter element comprises a cylindrical support and a filter screen coated on the peripheral surface of the support, and the outer side of the filter element is provided with a brush piece capable of scraping impurities on the filter screen through rotation. The existing pre-filter is generally provided with a hand wheel outside a sewage discharge end, the hand wheel is connected with a brush piece through a connecting piece which is circumferentially sealed with the sewage discharge end, and the hand wheel is rotated to realize that the brush piece is manually rotated to scrape and wash a filter screen on a filter element. The connecting piece is often provided with a ball valve core, and the blow-down end can be opened by screwing the ball valve core, and then the water is fed through the water inlet end to flush the scraped impurities out of the shell from the blow-down end for blow-down.
When the internal cleaning is performed, the drain valve is usually manually opened, and the brush is manually rotated by rotating the hand wheel, so that the dirt on the outer wall and the inner wall of the filter screen is removed. The manual cleaning mode can not automatically remove scale at regular time, and the operation is troublesome. For example, chinese patent application publication No. CN107823939A entitled "prefilter" discloses a prefilter that closes a drain valve manually, and a rotary seat is rotated manually to drive a rotary frame to rotate so as to clean an outer wall of a filter screen and an inner wall of a filter barrel, which is too troublesome for manual operation and cannot perform cleaning periodically at regular time. Therefore, the problem of solving the above existing problem is that the matters to be handled are not buffered at present.
Disclosure of Invention
The utility model aims at the above-mentioned problem that prior art exists, provide a leading filter. It solves the technical problem that the cleaning and the pollution discharging in the prior pre-filter are inconvenient.
The purpose of the utility model can be realized by the following technical proposal:
the utility model provides a leading filter, is equipped with cylindric filter core including the casing that has the blowdown end in the casing, the parcel has the brush piece on the outer peripheral face of filter core, a serial communication port, wear to be equipped with the valve rod that links firmly mutually with the brush piece in the casing, brush piece and filter core axial fixity, the upper portion of brush piece is equipped with the screw thread section, be equipped with in the casing with screw thread section complex screw thread portion, blowdown end department is equipped with the locating part fixed with filter core circumference, the brush piece can make screw thread section and screw thread portion break away from the cooperation through rotating, blowdown end department still is equipped with enclosed construction, when the brush piece rises enclosed construction enables the blowdown end route, when the brush piece descends the enclosed construction enables the blowdown end and seals.
The pre-filter comprises a shell with a sewage discharge end, a cylindrical filter element is arranged in the shell, a brush part is wrapped on the outer peripheral surface of the filter element, the brush part and the filter element are separated, and the brush part can scrape the outer peripheral surface of the filter element when the brush part and the filter element move relatively. The outer peripheral surface of the upper part of the brush piece is provided with a thread section, and a thread section matched with the thread section is arranged in the shell.
This arrangement has two effects: one is that the brush can be raised or lowered by rotation relative to the housing and by engagement of the threaded section with the threaded portion. Because the sewage discharge end is provided with the closed structure, the closed structure can lead the sewage discharge end to be communicated when the brush piece rises, and the closed structure can lead the sewage discharge end to be closed when the brush piece descends. When the valve rod drives the brush piece to rotate, the brush piece can be lifted under the cooperation of the thread section and the thread section, the blow-off end which is originally blocked by the closed structure at the lower end after being lifted can be opened to discharge liquid in the shell from the blow-off end, the brush piece can descend under the cooperation of the thread section and the thread section to realize re-blocking of the blow-off end after being opened through reverse rotation of the valve rod, the forward rotation and the reverse rotation of the valve rod can be controlled by only installing a controller outside the shell through setting the controller, the rotation frequency is set through the controller, the rotation time is long, the function of automatically opening and closing the blow-off end can be realized through parameters such as the rotation period, and the internal cleaning and blow-off of the front filter are convenient.
And the second mode is that a limiting part fixed with the circumferential direction of the filter element is arranged at the sewage discharge end, the brush piece can enable the thread section to be disengaged from the thread section through rotation, and the brush piece is axially fixed with the filter element. The filter element can remain stationary during rotation of the brush and can be lifted along with the threaded connection between the brush and the housing. The brush piece can scrape and wash the filter element through rotation, and can continuously keep idle running to continuously scrape and wash the peripheral surface of the filter element after the thread section is disengaged from the thread section, so that the sewage discharge end is opened while scraping and washing, impurities such as silt or scale adhered to the filter element can be scraped and washed by the brush piece and discharged out of the shell from the opened sewage discharge end, and the valve rod can keep idle running without lifting and continuously scrape and wash the filter element under the condition of no thread fit because the matching length of the thread section and the thread section is limited and the valve rod can be gradually lifted to the point that the thread section is disengaged from the thread section along with the rotation of the brush piece; after scraping and washing, the thread section and the thread section are meshed again through the reverse rotation of the valve rod, the brush piece can reversely rotate and descend to move towards the direction of the sewage discharge end under the threaded matching, the sewage discharge end is plugged again, the controller is connected onto the valve rod, the idle rotation of the valve is controlled through the controller, the frequent or set idle rotation scraping and washing number of turns is controlled to realize continuous scraping and washing of the filter element, and the design is further convenient for the internal washing of the front filter.
This leading filter is fixed to realize rotating through the brush with the threaded connection of casing and the circumference of filter core and casing and has been opened the blowdown end and carried out the blowdown when scraping and washing the filter core, and the design makes abluent convenience in the leading filter obtain promotion by a wide margin like this, but also can realize the corotation and the reversal of the timing constant speed of control valve rod at casing external connection director, has realized the full-automatic internal cleaning blowdown of this leading filter.
In foretell leading filter, the enclosed construction is including rotating piece and sealed head, rotates the piece and is the sealed lower extreme open-ended tubular structure in upper end, it is inboard and sealed with blowdown end circumference to rotate the piece and be located the blowdown end, it stretches into in the casing and rotates the piece upper end and has still seted up a plurality of water holes of crossing to rotate the piece upper end, sealed head is lower extreme open-ended tubular structure and axial fixity the lower extreme of brush, sealed head cladding is rotating the piece upper end outside and makes the water hole of crossing seal.
The closed structure comprises a rotating part and a sealing head, wherein the rotating part is circumferentially sealed with the sewage discharge end, and the sealing head is fixed at the bottom of the brush part. The sealing head can be raised or lowered together with the brush. The rotation piece wears to establish in the blowdown end and with blowdown end circumference seal, rotates the relative blowdown end circumference of piece ability and rotates, rotates the piece and is the upper end and seals lower extreme open-ended tubular structure and the upper end that rotates and stretch into in the casing, has seted up the water hole on stretching into the rotation piece in the casing. The cladding of sealing head is outside the upper end of rotating the piece, crosses the water hole and then lies in sealing head, sets up like this and can will cross the water hole when sealing head shifts up and expose and communicate with the casing inner chamber, and can cross the water hole and shelter from will cross the water hole and seal in sealing head when sealing head descends, as long as brush spare shifts up or descend then can drive sealing head synchronous displacement control cross the opening and close of water hole, realized the automatic function of opening the blowdown end, made things convenient for the blowdown of this prefilter greatly.
In foretell leading filter, cross the water hole and be located the lateral part that rotates, it is equipped with and is annular protruding edge to lie in water hole downside on the outer peripheral face that rotates, protruding edge lies in water hole one side and inlays and be equipped with and be annular sealed pad two, the port department of sealed head supports to form sealed pad one and seals, the up end that rotates also is equipped with and is annular sealed pad one, sealed pad one supports with sealed inboard roof of head and supports to form sealedly.
Sealed the upside that fills up one and be located the water hole, it has protruding edge to cross the radial outside arch on the rotation piece of the downside in water hole, protruding edge inlays and is equipped with sealed pad two, lower port that sealed head when rotating the piece upper end and stretching into sealed head supports and leans on sealed pad two, sealed inboard top surface of head supports with sealed pad one and leans on to form sealedly, set up sealed pad one like this, sealed pad two and sealed head three form an annular cavity, and cross the water hole and be located the cavity and completely cut off with the casing inner chamber and be about to cross the water hole shutoff, simple structure also conveniently opens the blowdown end.
In the above-mentioned prefilter, the limiting member is in a long strip shape and is fixed on the upper end surface of the rotating member, the upper end of the limiting member penetrates through the sealing head and extends into the filter element, and the limiting member is circumferentially fixed with the filter element.
The locating part is located the up end that rotates the piece to with rotate an integrated into one piece, the locating part runs through sealed head and stretches into in the filter core, and be connected circumference with the filter core and fix, the design makes the rotation that rotates the piece and can control the filter core like this, and when rotating the piece and not rotating, the filter core also keeps not rotating, and the brush spare then can rotate the filter core relatively and scrape and wash. Certainly, we can also realize controlling the filter core to rotate through rotating the piece, rotate when the brush is static and rotate the piece and can control the filter core and rotate relatively the brush, design like this makes the relative rotation between brush and the filter core have two kinds of drive modes for scrape and wash the filter core and have multiple ways, convenient operation.
In the above-mentioned prefilter, the upper end of the limiting part has a square positioning part, a fitting hole for engaging with the positioning part is provided in the filter element, and the limiting part extends into the fitting hole through the positioning part and is circumferentially fixed with the filter element.
The filter core and the locating part are circumferentially fixed through the square positioning part and the square matching hole, and the filter core and the locating part are simple in structure, convenient and practical.
In the above pre-filter, the lower end of the rotating member is further connected with a handle for manually controlling the rotating member to rotate.
This leading filter both can realize that manual twisting moves the handle and drives the filter core and rotate the effect that thereby brush piece does not rotate and reach manual washing filter core simultaneously, also can realize that the filter core keeps motionless brush piece and drives the self-cleaning who rotates and scrape washing the filter core through the valve rod, and manual washing combines together with self-cleaning for this leading filter's interior abluent mode is diversified and comparatively convenient, and the practicality is higher.
In foretell leading filter, the brush spare includes the connector and the brush body, the connector is located the upper end of the brush body, sealed head is located the lower tip of the brush body, the filter core is located the brush body inboard and filter core both ends can lean on the axial spacing with connector and sealed head respectively, the screw thread section is located on the lateral surface of connector.
The brush part consists of two parts, namely a connector and a brush body, wherein the brush body is of a cylindrical structure with an upper opening and a lower opening, the connector is positioned at the upper end of the brush body, and the sealing head is positioned at the lower end of the brush body. The screw thread section is located on the outer peripheral surface of the connector, and the connector plays a role in being in threaded connection and matching with the screw thread section on the shell. The sealing head is used for abutting against the sewage discharge end to form a seal. The filter core is located the internal intracavity of brush, and connector and sealed head can also restrict filter core axial motion, and the last lower extreme of filter core can lean on respectively with the lateral part of connector and sealed head to lean on and prevent that it from falling out outside the internal intracavity of brush, and the benefit of design like this is that the relative filter core pivoted stability of brush is better and because the omnidirectional parcel of brush does not have the dead angle when scraping and washing the filter core in both relative rotations outside the filter core, scrapes the cleaner of washing.
In the above pre-filter, the housing has a mounting seat, the threaded portion is located on an inner side surface of the mounting seat, and the connector extends into the mounting seat and is in threaded connection with the threaded portion.
The brush passes through the mount pad to be fixed with the casing, it is fixed more stable like this, and because the brush rotates and needs the lifting, so connector on the brush stretches into in the mount pad, the screw thread of connector rotates and makes it stretch into in the mount pad gradually, rise gradually along with the brush, the screw thread section breaks away from the cooperation brush machine with screw thread portion and does not lift again, the valve rod continues to take the idle rotation of brush and scrapes and wash the filter core, more then the connection stability between the two is better in the connector stretches into the mount pad after the lifting, especially the brush will continue to keep idle rotation to scrape and wash, the mount pad medial surface can make the brush rotate comparatively stably for the certain side direction holding power of connector, wash targets in place more.
In foretell leading filter, be equipped with the cooperation portion that is outer octagon on the valve rod, the connector has the hole that is interior octagon, the valve rod stretches into hole circumference fixedly with the connector through cooperation portion, and the hole slides relatively in cooperation portion ability.
The matching part extends into the inner octagonal inner hole and is matched with the inner hole. In the whole brush piece rotating process, the matching part can also slide in the inner hole to realize the lifting or descending of the filter element, so that the design structure is simple, convenient and practical, and the filter element is further convenient to clean.
In the front filter, a first spring is further arranged in the inner hole, one end of the first spring abuts against the inner side face of the connector, and the other end of the first spring abuts against the matching part.
The effect of the setting of spring one lets the brush spare keep the trend of downstream all the time through the elasticity of spring one, when the connector need reset after screw thread section and screw thread portion screw thread throw off, valve rod counter-rotation screw thread section and screw thread portion thread engagement are comparatively difficult, but can make the brush spare keep the trend of pushing down constantly under the effect of spring one make screw thread section and screw thread portion mesh more easily, the effect of the blowdown end of reclosing after comparatively convenient play washs the blowdown.
Compared with the prior art, the product has the advantages that:
1. the rotation of the brush piece can be lifted under the cooperation of the thread section and the thread section, the sewage discharge end can be opened after lifting, so that liquid in the shell can be discharged from the sewage discharge end, the brush piece can descend to block the sewage discharge end again after the brush piece rotates reversely, and the opening and closing of the sewage discharge end can be controlled through the rotation of the control brush piece, so that the internal cleaning and sewage discharge of the front filter are convenient.
2. The filter core is spacing by locating part circumference, and the brush can drive the synchronous lifting of filter core, after screw thread section and screw thread portion break away from the cooperation, the valve rod continues to rotate the brush and can keep the idle rotation and not the lifting under the condition that does not have screw-thread fit and continuously scrape the washing to the filter core, can be through connection director on the valve rod, come the idle running of control valve to scrape through the controller often or set for idle running to scrape the number of turns of washing and realize lasting scraping the filter core of washing, design further the interior washing that has made things convenient for this leading filter like this.
3. This leading filter rotates through the brush spare and scrapes the washing filter core, also rotates through the brush spare and realizes opening the blowdown end, and the design makes abluent convenience degree obtain promotion by a wide margin in the leading filter like this, but also can realize the corotation and the reversal of the timing constant speed of control valve rod at the outer connection director of casing, has realized the full-automatic interior washing blowdown of this leading filter.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a half sectional view of the present invention;
fig. 3 is an enlarged view of the present invention in part at a;
FIG. 4 is a partial block diagram of the present invention;
fig. 5 is a part view of the rotating member and the limiting member of the present invention;
fig. 6 is a bottom view of the sealing head of the present invention;
fig. 7 is a bottom view of the filter cartridge of the present invention;
fig. 8 is a part diagram of the mounting base of the present invention.
In the figure, 1, a housing; 11. a blowdown end; 12. a threaded portion; 2. a filter element; 21. a mating hole; 3. a brush member; 31. a connector; 311. a threaded segment; 312. an inner bore; 32. a brush body; 33. a sealing head; 331. an annular protrusion; 4. a valve stem; 41. a fitting portion; 5. a closed structure; 51. a rotating member; 511. a positioning part; 512. water passing holes; 513. a convex edge; 52. a limiting member; 53. a second sealing gasket; 54. a first sealing gasket; 6. a mounting seat; 7. a first spring; 8. a handle.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
Example one
The prefilter shown in fig. 1-4 comprises a housing 1 with a sewage discharge end 11, and two water inlet ends and two water outlet ends which are oppositely arranged are arranged at the upper end of the housing 1. A mounting seat 6 is fixed between the water inlet end and the water outlet end in the shell 1, the mounting seat 6 is cylindrical, a connecting port in butt joint with the water outlet end is formed in the side portion of the mounting seat 6, the lower end of the mounting seat 6 is open, and water flow enters the shell 1 from the water inlet end, then enters the mounting seat 6 from the lower end of the mounting seat 6 and is discharged from the water outlet end from the connecting port. Still be equipped with cylindric filter core 2 in the casing 1, filter core 2 is connected at the lower extreme of mount pad 6, and rivers enter into the casing 1 intracavity from the end of intaking during normal use this leading filter, then enter into in the mount pad 6 and discharge from the play water end of casing 1 through the filtration of filter core 2 again. The outer peripheral face of filter core 2 is wrapped up and is had brush 3, filters the impurity influence normal filtration such as the inevitable incrustation scale that can form on the outer peripheral face of filter core 2 for a long time in rivers, and brush 3 and filter core 2 are the components of a whole that can function independently, can be through rotating relative filter core 2 with these incrustation scales from the outer peripheral face of filter core 2 scraping. This leading filter's 1 top of casing wears to be equipped with and to drive brush 3 pivoted valve rod 4, thereby can realize through external controller that valve rod 4 autogiration drives brush 3 and rotates for this leading clarifier realizes scraping automatically and washes.
The outer peripheral surface of the upper part of the brush 3 is provided with a threaded section 311, the inner side of the mounting seat 6 is provided with a threaded section 12 matched with the threaded section 311, and the brush 3 can be lifted or lowered when rotating under the matching of threads. A closing structure 5 is further arranged between the brush member 3 and the sewage discharging end 11, and the closing structure 5 comprises a rotating member 51 and a sealing head 33. The brush 3 can control the closing structure 5 to open or close the sewage discharging end 11 by lifting and descending. The closure arrangement 5 comprises a rotary member 51 located within the waste end 11 and a sealing head 33 axially fixed to the lower end of the brush member 3.
The bottom of brush member 3 is equipped with the circular shape opening, is equipped with bellied fixture block on the opening inside wall, and sealed head 33 upper end is equipped with the connector, and the connector stretches into in the opening and be fixed with the jump ring on the outer peripheral face of the upper end of connector, and the jump ring can support with the fixture block and lean on spacingly for sealed head 33 is spacing with brush member 3 axial. The sealing head 33 can also be lifted when the brush is lifted. The rotating part 51 is of a tubular structure with an upper end sealed and a lower end opened, the rotating part 51 is located on the inner side of the sewage discharge end 11 and is circumferentially sealed with the sewage discharge end 11, the upper end of the rotating part 11 extends into the shell 1, the side part of the upper end of the rotating part 11 is further provided with a plurality of water through holes 512, and the sealing head 33 covers the water through holes 512 to seal the water through holes 512 outside the upper end of the rotating part 11. Set up like this and can expose the water hole 512 when sealed head 33 moves up and expose with the intercommunication of casing 1 inner chamber, and can shelter from the water hole 512 when sealed head 33 descends and seal the water hole 512 that will cross in sealed head 33, as long as brush 3 moves up or descend then can drive sealed head 33 synchronous displacement control water hole 512 open and close, realized the automatic function of opening blowdown end 11, made things convenient for the blowdown of this prefilter greatly. According to the design, the opening or closing of the sewage discharging end 11 can be directly controlled only by controlling the forward rotation or the reverse rotation of the valve rod, so that the rotation of the valve rod 4 is controlled only by installing a controller outside the shell 1, and the function of automatically opening and closing the sewage discharging end 11 can be realized by setting parameters such as the rotation frequency, the rotation time, the rotation period and the like of the controller, so that the internal cleaning and sewage discharging of the front filter are convenient.
The pollution discharge end 11 is further provided with a limiting part 52 circumferentially fixed with the filter element 2, the brush 3 is axially fixed with the filter element 2, the filter element 2 does not rotate when the brush 3 rotates, and the filter element 2 is lifted synchronously with the brush 3, so that the brush 3 plays a role in scraping and washing the filter element 2 when rotating. Because the matching length of the thread part 12 and the thread part 311 is limited, after the brush part 3 is gradually lifted to the thread part 311 and the thread part 12 to be disengaged, the valve rod 4 still continuously rotates towards the same direction and the brush part 3 can keep idle rotation without lifting to continuously scrape and wash the filter element 2 under the condition of no thread engagement, the brush part 3 can realize the effect of scraping and washing the filter element 2 by rotating relative to the filter element 2, and the brush part 3 can also continuously keep idle rotation to scrape and wash the outer peripheral surface of the filter element 2 after the thread part 311 and the thread part 12 are disengaged, so that the sewage discharge end 11 can be opened while scraping and washing, and impurities such as silt or scale adhered to the filter element 2 can be scraped and washed by the brush part 3 and discharged out of the shell 1 from the opened sewage discharge end 11; after the scraping and washing is finished, the threaded section 311 and the threaded section 12 are meshed again through the reverse rotation of the valve rod 4, the brush piece 3 can reversely rotate and descend to move towards the direction of the sewage discharge end 11 under the threaded matching, the sewage discharge end 11 is plugged again, the controller is connected to the valve rod 4, the frequency of idle-running scraping and washing of the valve is controlled through the controller or the idle-running scraping and washing is set to be always to realize continuous automatic scraping and washing of the filter element 2, and the design further facilitates the internal washing of the pre-filter.
As shown in fig. 2 and 5, the brush 3 specifically includes a connector 31 and a brush body 32, the connector 31 is located at the top of the brush body 32, the sealing head 33 is located at the bottom of the brush body 32, the filter element 2 is located inside the brush body 32, and two ends of the filter element 2 can respectively abut against the connector 31 and the sealing head 33 for axial limitation. The threaded section 311 is opened on the outer circumferential surface of the connecting head 31, and the connecting head 31 is connected with the mounting seat 6 through threaded matching of the threaded section 311 and the threaded section 12. The upper and lower end of filter core 2 can lean on with the lateral part of connector 31 and sealed head 33 respectively and lean on and prevent that it from falling out outside brush body 32 inner chamber, and the benefit of design like this is that brush 3 is better for filter core 2 pivoted stability and because brush 3 omnidirectional parcel has no dead angle when filter core 2 is scraped in filter core 2 outside both relative rotations, scrapes the cleaner of washing. Be equipped with on the valve rod 4 and be outer octagonal's cooperation portion 41, connector 31 has the hole 312 that is interior octagonal, and valve rod 4 is fixed through cooperation portion 41 and hole 312's cooperation circumference with connector 31, and cooperation portion 41 can slide from top to bottom in hole 312, and the design makes valve rod 4 can keep the axial motionless when brush 3 displacement like this. The inner hole 312 is further provided with a first spring 7, the lower end of the first spring 7 abuts against the protrusion on the inner side surface of the connector 31, and the upper end of the first spring 7 abuts against the matching part 41. In the whole rotating process of the brush member 3, the matching part 41 can slide up and down in the inner hole 312 to keep the valve rod 4 axially static, so that the design structure is simple, convenient and practical, and further the filter element 2 is convenient to clean. The spring I7 is used for always keeping the brush 3 in a downward movement trend through the elastic force of the spring I7, when the connecting head 31 needs to reset after the thread sections 311 and 12 are disengaged, the thread sections 311 and 12 are rotated reversely by the valve rod 4, the thread engagement is not easy, but the thread sections 311 and 12 are easy to engage due to the trend that the brush 3 is kept pressed down constantly under the action of the spring I7, and the effect of closing the sewage discharge end 11 again after the sewage discharge is cleaned and discharged is achieved conveniently.
This leading filter makes brush 3 liftable decline control blowdown end 11 open and close through brush 3 and casing 1's threaded connection promptly, it scrapes washing filter core 2 to have realized making brush 3 relative filter core 2 rotation also to have passed through filter core 2 and locating part 52 circumference fixed, the blowdown end 11 has been opened and has carried out the blowdown when scraping washing, the design makes abluent convenience in the leading filter obtain promotion by a wide margin, through the corotation and the reversal of the timing constant speed of connecting the controller outside casing 1 and realizing control valve rod 4, the full-automatic interior washing blowdown of this leading filter has been realized. Brush 3 is fixed through mount pad 6 and casing 1, it is fixed more stable like this, and because brush 3 rotates and needs the lifting, so connector 31 on brush 3 stretches into in mount pad 6, the screw thread of connector 31 rotates and makes it stretch into in mount pad 6 gradually, rise gradually along with brush 3, screw thread section 311 and screw thread section 12 break away from cooperation brush 3 and do not lift again, valve rod 4 continues to take brush 3 idle rotation to scrape and wash filter core 2, more then connection stability between the two is better in connector 31 stretches into in mount pad 6 after the lifting, especially brush 3 will continue to keep idle rotation to scrape and wash, mount pad 6 medial surface can give connector 31 certain lateral supporting power and make brush 3 rotate comparatively stable, wash more and target in place.
As shown in fig. 1 to 7, the limiting member 52 is located at the central position of the upper end surface of the rotating member 51, and the two are integrally formed, a hole site into which the limiting member 52 can extend is formed at the central position of the sealing head 33, the hole site penetrates through the connector on the sealing head 33, the limiting member 52 passes through the hole site and extends into the filter element 2 and is circumferentially fixed with the filter element, a convex portion protruding radially inward is formed on the inner side of the lower end of the filter element 2, the convex portion is hollow, a matching hole 21 is formed at the central position of the convex portion, the limiting member 52 is in a long-strip column shape, a positioning portion 511 in a long-strip square shape is formed at the end of the limiting member 52, and the positioning portion 511 extends into the matching hole 21 to form a matching circumferential fixation. The filter element 2 and the limiting member 52 are circumferentially engaged and fixed by the structure of the positioning portion 511 and the fitting hole 21, so that the structure is simple, convenient and practical. Still the cover is equipped with spring two in the outside of locating part 52, and the upper end of spring two supports and leans on the lower tip department of convex part, and the lower extreme of spring two supports and leans on the connector on sealed head 33, sets up like this and makes the connector keep tight state can not take place not hard up, can have certain upward movement absorbing effect when sealed head 33 supports with sealed pad 54 and sealed pad two 53 and supports and lean on, and the dynamics is too big when preventing to support and is harmd sealed pad. The filter element 2 can be kept raised or lowered together with the brush 3. One end part of the rotating part 51 extends into the sealing head 33 to form circumferential sealing to seal the water through hole 512, the sealing head 33 is annular so as to be sleeved on the rotating part 51, the water through hole 512 is arranged on the outer peripheral surface of the upper end of the rotating part 51, and when the water through hole 512 is completely positioned in the sealing head 33, sealing can be formed to seal the water through channel, namely, the sewage discharging end 11 is closed. The downside that lies in water hole 512 on the rotation piece 51 has been seted up and has been annular protruding edge 513, the upper end on protruding edge 513 inlays and is equipped with sealed two 53, seted up on the up end of rotation piece 51 has the annular and the annular is embedded to be equipped with sealed one 54 that fills up, water hole 512 lies in sealed one 54 and sealed two 53, the port supports to lean on sealed two 53 under the sealed head 33, be equipped with on the inboard roof of sealed head 33 towards the convex annular convex part 331 of lower port department, annular convex part 331 supports to press and forms sealed on sealed one 54, it can the cavity will cross water hole 512 and the interior chamber of casing 1 wall and be about to cross water hole 512 seal structure simple also conveniently to open blowdown end 11 to fill up between sealed one 54 and sealed two 53.
The lower end of the rotating piece 51 extends out of the sewage discharge end 11, and a handle 8 for manually controlling the rotation of the rotating piece 51 is also fixed on the rotating piece. When brush 3 stop work is static relatively, thereby we can drive filter core 2 through manual twisting handle 8 and rotate and reach the effect of manual washing filter core 2, and this leading filter combines together through manual washing and self-cleaning for this leading filter's interior washing is more convenient and the practicality is higher.
Example two
The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: the valve rod 4 in the embodiment is directly and fixedly connected with the connector 31 on the brush 3, the valve rod 4 is slidably arranged in the mounting seat 6 and is connected with a controller outside the valve rod to realize rotation, and the technical effects similar to those of the embodiment are achieved.
EXAMPLE III
The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: in this embodiment, the first sealing gasket 54 is an O-ring, an annular groove is formed on the outer peripheral surface of the rotating member 51, the groove is located on the upper side of the water through hole 512, and the first sealing gasket 54 is located in the groove. When the upper end of the rotating member 51 extends into the sealing head 33, the inner side wall of the sealing head 33 can simultaneously abut against the first sealing gasket 54 and the second sealing gasket 53 to form sealing, so that the water through hole 512 is isolated from the inner cavity of the housing 1, and the technical effect similar to that of the embodiment can be achieved.
Example four
The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: the limiting member 52 in this embodiment is in a long strip shape, the shape of the limiting column 52 is also in a polygon structure of an external octagon or an external hexagon, a polygonal matching hole 21 matching with the polygonal shape of the limiting member 52 is arranged at the central position of the convex part in the filter element 2, and the upper end of the limiting member 52 extends into the matching hole 21 and is circumferentially fixed with the filter element 2.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022601269.9U CN213912570U (en) | 2020-11-11 | 2020-11-11 | a pre-filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022601269.9U CN213912570U (en) | 2020-11-11 | 2020-11-11 | a pre-filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213912570U true CN213912570U (en) | 2021-08-10 |
Family
ID=77170269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022601269.9U Withdrawn - After Issue CN213912570U (en) | 2020-11-11 | 2020-11-11 | a pre-filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213912570U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112169405A (en) * | 2020-11-11 | 2021-01-05 | 玉环市红日阀门有限公司 | Front filter |
-
2020
- 2020-11-11 CN CN202022601269.9U patent/CN213912570U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112169405A (en) * | 2020-11-11 | 2021-01-05 | 玉环市红日阀门有限公司 | Front filter |
| CN112169405B (en) * | 2020-11-11 | 2024-12-03 | 玉环市红日阀门有限公司 | Front filter |
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