CN211189292U

CN211189292U - But leading filter of manual back flush

Info

Publication number: CN211189292U
Application number: CN201921229914.XU
Authority: CN
Inventors: 刘伯煌; 詹丰顺; 陈岱桦; 严建勇
Original assignee: Xiamen Filtertech Industrial Corp
Current assignee: Xiamen Filtertech Industrial Corp
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-08-07
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses a pre-filter capable of manual back washing, which comprises a body, wherein the upper end of the body is provided with a water inlet end and a water outlet end, a filter element is arranged in the body, a water outlet is also arranged below the body, the filter element comprises a central tube which can be communicated with the water outlet end, and the central tube can be arranged in the body in a way of moving up and down; a water inlet is formed in the body, a first sealing ring capable of plugging the water inlet is arranged at the upper end of the central tube, and a backwashing water passing hole is formed in the central tube above the first sealing ring; the lower end of the central pipe is provided with a second sealing ring capable of blocking water outlet of the water outlet, and the filter can quickly realize backwashing.

Description

But leading filter of manual back flush

Technical Field

The utility model relates to a but leading filter of manual back flush.

Background

The pre-filter is the first coarse filter for water in the whole house and can filter silt, rust, ova, red worm and other large particles in tap water, and is generally installed in the front end of the pipeline. The pre-filter is a killer for secondary pollution of a water supply network, so that the water quality of a user is recovered to the standard of the outgoing tap water, and the pre-filter is a reliable impurity filtering device and is a first water purifying entrance guard at home. At present, the pre-filter on the market can not really achieve the function of back washing, so the service life of the pre-filter can be greatly influenced. The cleaning mode of the front filter in the existing market is as follows: a siphon mode, a direct flushing mode and a scraping mode; none of the above methods can remove the dirt on the filter screen well.

Disclosure of Invention

In order to solve the technical problem, an object of the present invention is to provide a prefilter capable of manual backwashing.

The utility model discloses a following technical scheme realizes:

a pre-filter capable of being manually backwashed comprises a body, wherein the upper end of the body is provided with a water inlet end and a water outlet end, a filter element is arranged in the body, a water outlet is also arranged below the body, the filter element comprises a central tube which can be communicated with the water outlet end, and the central tube can be vertically moved and arranged in the body; a water inlet is formed in the body, a first sealing ring capable of plugging the water inlet is arranged at the upper end of the central tube, and a backwashing water passing hole is formed in the central tube above the first sealing ring; and a second sealing ring capable of blocking water outlet is arranged at the lower end of the central pipe.

The embodiment of the utility model provides an in, this internal first inlet channel and the second inlet channel that can be linked together that is provided with, the water inlet is located between first inlet channel and second inlet channel, the second inlet channel is linked together with the end of intaking of filter core.

The embodiment of the utility model provides an in, still be provided with the water course in this body, the end of intaking in the water course is linked together with the second inlet channel, the play water end in the water course is linked together in the delivery port.

In the embodiment of the utility model provides an in, the filter core is still including fixing the casing in this body, the center tube sets up in the casing.

The embodiment of the utility model provides an in, the casing upper end is provided with first end cover, offer the trompil that is used for installing the center tube on the end cover, be provided with the third sealing washer between trompil internal perisporium and the play water end peripheral wall.

The embodiment of the utility model provides an in, the casing lower extreme is provided with the second end cover, the lower extreme and the cooperation of second end cover upper end of center tube are connected, be provided with the fourth sealing washer between the inner wall of second end cover periphery and casing.

In the embodiment of the utility model provides an in, second end cap lower extreme is provided with the bellying, the second sealing washer sets up the periphery at the bellying.

The embodiment of the utility model provides an in, the body top still is provided with a knob, this internal screw rod that is provided with, the drive end and the knob cooperation of screw rod are connected, the upper end of center tube is provided with the screw thread, the screw thread end and the screw-thread fit of play water end of screw rod are connected.

The utility model discloses a but leading filter of manual back flush has following beneficial effect: the back washing work of the filter element can be realized through simple operation, the structure is simple, the installation work is not complicated, meanwhile, the number of parts is small, and the manufacturing cost is well reduced.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of state one of the present invention.

Fig. 2 is a schematic diagram of state two of the present invention.

Fig. 3 is a perspective view of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with at least one implementation of the invention is included. In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.

Referring to the attached drawings of the specification, the manual backwashing prefilter comprises a body 10 with a water inlet end 11 and a water outlet end 12 at the upper end, wherein a filter element 20 is arranged in the body, a water outlet 13 is also arranged below the body, and the water outlet is a water outlet during backwashing; when the front filter carries out the back flush, the delivery port goes out water, goes out the water end and can not go out water, the filter core including can with go out the communicating center tube 21 of water end, the setting that the center tube can reciprocate is originally internal, more specifically says so: the switching between the water outlet end of the body and the water outlet of the water outlet is realized by the up-and-down movement of the central tube; a water inlet 14 is arranged in the body, a first sealing ring 31 capable of plugging the water inlet is arranged at the upper end of the central tube, and a back-flushing water passing hole 22 is arranged on the central tube above the first sealing ring; the lower end of the central tube is provided with a second sealing ring 32 which can block the water outlet of the water outlet.

Furthermore, a first water inlet channel 15 and a second water inlet channel 16 which can be communicated are arranged in the filter body, the water inlet is positioned between the first water inlet channel and the second water inlet channel, and the second water inlet channel is communicated with the water inlet end of the filter element. Referring to the drawings, in one embodiment, the tail of the first water inlet channel is formed with a transverse water channel 151, the water inlet is disposed below the water channel, a through hole 17 is disposed above the water channel, the central tube is disposed in the through hole, and the first sealing ring at the periphery of the central tube can also be matched with the peripheral wall of the through hole.

In order to facilitate the water discharge during the back washing, a water passing channel 18 is also arranged in the body, the water inlet end of the water passing channel is communicated with the second water inlet channel, and the water outlet end of the water passing channel is communicated with the water outlet.

The utility model discloses an embodiment, the filter core is still including fixing casing 24 in this internal, the center tube sets up in the casing, and this casing also can be called the skeleton, and it can filter the debris of large granule. The casing upper end is provided with first end cover 25, offer the trompil 26 that is used for installing the center tube on the end cover, be provided with third sealing washer 33 between trompil internal perisporium and the play water end outer peripheral wall. The lower end of the housing is provided with a second end cap 27, the lower end of the center tube is connected with the upper end of the second end cap in a matching manner, a fourth sealing ring 34 is arranged between the outer periphery of the second end cap and the inner peripheral wall of the housing, in one embodiment, the lower end of the center tube is inserted into the second end cap, and the filtered water is upwards left from the water outlet end for water outlet. The lower end of the second end cover is provided with a bulge 28, and the second sealing ring is arranged on the periphery of the bulge; when the third sealing ring and the fourth sealing ring mainly realize the movement of the central tube, the filter element does not leak water.

More specifically: the novel water-saving faucet is characterized in that a knob 40 is further arranged above the faucet body, a screw rod 50 is arranged in the faucet body, the driving end of the screw rod is connected with the knob in a matched mode, synchronous selection of the screw rod and the knob can be achieved through a spline connection mode, threads 29 are arranged at the upper end of the central tube, and the threaded end of the screw rod is connected with threads at the water outlet end in a matched mode.

The utility model discloses when normal filterable: at the moment, the fifth sealing ring is matched with the peripheral wall of the through hole, and the second sealing ring is matched with the water outlet, so that no water passing is realized; water enters from the water inlet end of the body, enters the second water passing channel from the concave part and the water inlet through the first water passing channel, is filtered by the filter element, and finally only flows upwards from the inside of the central tube, and then flows out from the water outlet end of the body through the water hole.

The utility model discloses in back flush: the knob is rotated, the central tube moves downwards under the action of the screw, at the moment, the fifth sealing ring is disengaged from the peripheral wall of the through hole, the second sealing ring is also disengaged from the water outlet, water can be discharged, the second sealing ring is engaged with the water inlet, no water is discharged, under the state, water enters from the water inlet end of the body and then is reserved in the first water passing channel, water is reserved in the central tube from the water passing hole because the water inlet is not passed through the water inlet, then flows downwards and flows out of the shell, the back flushing work is realized, and the water flowing out of the shell reaches the second water passing channel and then is discharged from the water outlet.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A pre-filter capable of being manually backwashed comprises a body, wherein the upper end of the body is provided with a water inlet end and a water outlet end, and a filter element is arranged in the body; a water inlet is formed in the body, a first sealing ring capable of plugging the water inlet is arranged at the upper end of the central tube, and a backwashing water passing hole is formed in the central tube above the first sealing ring; and a second sealing ring capable of blocking water outlet is arranged at the lower end of the central pipe.

2. The pre-filter capable of being manually backwashed as in claim 1, wherein a first water inlet channel and a second water inlet channel which can be communicated are arranged in the body, the water inlet is positioned between the first water inlet channel and the second water inlet channel, and the second water inlet channel is communicated with the water inlet end of the filter element.

3. The pre-filter capable of being manually backwashed as in claim 2, wherein a water passing channel is further arranged in the body, a water inlet end of the water passing channel is communicated with the second water inlet channel, and a water outlet end of the water passing channel is communicated with the water outlet.

4. A manually backwashable pre-filter as claimed in claim 3, wherein the filter cartridge further comprises a housing fixed within the body, the central tube being disposed within the housing.

5. The pre-filter capable of being manually backwashed as in claim 4, wherein a first end cover is arranged at the upper end of the shell, an opening for installing a central pipe is formed in the end cover, and a third sealing ring is arranged between the inner peripheral wall of the opening and the outer peripheral wall of the water outlet end.

6. The pre-filter of claim 5, wherein the lower end of the housing is provided with a second end cap, the lower end of the central tube is connected with the upper end of the second end cap in a matching way, and a fourth sealing ring is arranged between the outer periphery of the second end cap and the inner peripheral wall of the housing.

7. The pre-filter capable of being manually backwashed as claimed in claim 6, wherein the lower end of the second end cover is provided with a convex part, and the second sealing ring is arranged on the periphery of the convex part.

8. The pre-filter capable of being manually backwashed as in any one of claims 1 to 7, wherein a knob is further arranged above the body, a screw is arranged in the body, the driving end of the screw is connected with the knob in a matching manner, the upper end of the central tube is provided with threads, and the threaded end of the screw is connected with the threads at the water outlet end in a matching manner.