CN219922309U

CN219922309U - Tap filter

Info

Publication number: CN219922309U
Application number: CN202223599642.7U
Authority: CN
Inventors: 贾建东; 郭江明
Original assignee: Hangzhou Cobetter Filtration Equipment Co Ltd
Current assignee: Hangzhou Cobetter Filtration Equipment Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-10-31
Anticipated expiration: 2032-12-30

Abstract

The utility model provides a tap filter, which relates to the technical field of filtration and comprises: the housing is provided with a water inlet and a water outlet; the filter medium is arranged in the housing, and the first filter material and the second filter material are sequentially arranged according to the fluid filtering direction; a spacing element which is positioned in the housing, surrounds the filter medium and is provided with a flow port communicated with the first filter material and guides the raw liquid to flow into the first filter material; the liquid inlet channel is arranged between the spacing element and the housing, is respectively communicated with the water inlet and the circulation port and is used for flowing in fluid, and the liquid inlet channel can enable raw water to pass through the first filter material, and after most impurities such as residual chlorine and the like contained in the raw water are removed, the raw water passes through the second filter material, so that the impurities such as bacteria and the like which are not trapped in the first filter material are further removed, and the purification degree of the obtained purified water is improved.

Description

Tap filter

Technical Field

The utility model relates to the technical field of filtration, in particular to a tap filter.

Background

The impurities in the drinking water can be roughly classified into four types of pathogens, bacteria and inorganic substances, and the four types of impurities can have more or less influence on the health of a human body. At present, drinking water in home is treated by water purification through a water treatment plant, and after the tap water is subjected to chlorination and disinfection in the water treatment plant, the water still possibly contains residual chlorine or other pollutants, and the drinking water can cause adverse effects on human bodies.

In the prior art, the water purifier has various types and comprehensive functions, but has a complex structure, large volume, high cost and inconvenient installation and use, and needs a relatively spacious installation space.

In the improvement of the water purifier, in order to solve the problems of complex structure, large volume and high installation cost, patent CN205569907U proposes a tap filter, a baffle is arranged at the water inlet side inside the filter, a liquid inlet flow channel is formed between the baffle and a shell at the water inlet side, an ideal water flow path is that raw water enters from a water inlet and flows to the liquid inlet flow channel, residual chlorine in water is filtered and removed through a first filter material 5 when the raw water reaches the top end of the liquid inlet flow channel, then the raw water flows to a second filter material, the second filter material is a PES film and is used for intercepting bacteria in water, and the obtained clean water is discharged from a water outlet.

However, in the filter, only the baffle is provided between the inlet side and the filter medium, and in actual filtration, water does not flow along a predetermined path, that is, does not flow upward across the top end of the baffle, because the flow resistance is greater, but passes through the second filter medium with a lower height directly after crossing the baffle, that is, the first filter medium does not play an actual chlorine removal role, and thus the chlorine content of the effluent exceeds the standard.

Disclosure of Invention

The utility model aims to provide a tap filter, which has the advantages that the first filter material and the second filter material can be sequentially flowed according to the fluid filtering direction, so that raw water can be sufficiently filtered.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a faucet filter, comprising:

the housing is provided with a water inlet and a water outlet;

the filter medium is arranged in the housing, and the first filter material and the second filter material are sequentially arranged in the fluid filtering direction;

a spacing element which is positioned in the housing, surrounds the filter medium and is provided with a flow port communicated with the first filter material and guides the raw liquid to flow into the first filter material;

the liquid inlet channel is arranged between the spacing element and the housing, and is respectively communicated with the water inlet and the circulation port for inflow of fluid.

A spacing element is arranged inside the housing and surrounds the filter medium, and raw water can only enter the filter medium from a circulation port arranged on the spacing element; the liquid inlet flow channel is arranged between the spacing element and the housing, raw water entering from the water inlet reaches the circulation port arranged on the spacing element along the liquid inlet flow channel, reaches the first filter material after passing through the circulation port, and then flows out from the water outlet through the second filter material, so that the raw water passes through the first filter material, most impurities such as residual chlorine contained in the raw water are removed, and then the raw water passes through the second filter material, so that the impurities such as bacteria which are not trapped in the first filter material are further removed, and the purification degree of the obtained purified water is improved.

Further, the liquid inlet flow channel sequentially comprises a buffer flow channel and a flow guiding channel along the flowing direction, the buffer flow channel is communicated with the water inlet, and the flow guiding channel is communicated with the flowing port.

Raw water flows in from the liquid inlet and then sequentially passes through the liquid inlet formed by the buffer flow channel and the diversion channel to reach the circulation port, so that the flow rate of the raw water in the buffer flow channel is reduced, the flushing force on the diversion channel is reduced, in addition, the raw water is collected in the diversion channel, and the diversion channel is beneficial to guiding the raw water to enter the circulation port more stably.

Further, the buffer flow channel is positioned at the side edge of the filter medium, the flow channel direction is from bottom to top, the buffer flow channel comprises a buffer section, the width of the buffer section flow channel is widened from narrow, and the widening angle is 5-15 degrees.

Raw water flows in from the water inlet and then enters the buffer flow channel arranged from bottom to top, the width of the buffer flow channel is widened from narrow to wide, the buffer section with the widening angle of 5-15 degrees is arranged, when the widening angle is less than 5 degrees, the buffer effect is hardly achieved, when the widening angle is more than 15 degrees, the water flow speed is too slow, the possibility of flow break exists, the flow rate of the raw water in the buffer flow channel is slowed down by the scheme, the scouring force to the flow guide channel is reduced, meanwhile, continuous water flows to the flow guide channel still, and the risk of flow break does not exist.

Further, the buffer flow channel is formed by connecting at least two buffer sections in series.

Raw water flows in from the water inlet and then enters the buffer flow channel arranged from bottom to top, and the buffer flow channel consists of a plurality of buffer sections with the width of the sections being narrow and wide and the widening angle being 5-15 degrees, so that the flow speed of the raw water is regulated in a gradual manner when the raw water flows through the plurality of buffer sections, and better buffer formation is facilitated.

Further, the flow guiding channel is positioned on the top side of the filter medium and is recessed towards the direction of the flow opening, and the included angle between the fluid flowing direction of the flow guiding channel towards the flow opening and the horizontal direction is 1.5-5 degrees.

The top side of the filter medium is provided with a flow guiding channel which is recessed towards the flow opening, so that raw water is not easy to flow back to the buffer flow channel, but is gathered and enters the flow opening under the guidance of the recess of the flow guiding channel; when the included angle between the fluid flowing direction of the flow guiding channel and the horizontal direction is smaller than 1.5 degrees, no aggregation guiding effect exists, and when the included angle between the fluid flowing direction of the flow guiding channel and the horizontal direction is larger than 5 degrees, the storage space of the first filter material is reduced; the diversion channel is provided with a recess with an included angle of 1.5-5 degrees with the horizontal direction towards the fluid flowing direction of the flowing port, which is beneficial to improving the filtering efficiency and can also leave a storage space for the first filtering material.

Further, the liquid inlet flow channel further comprises a water inlet channel, and two ends of the water inlet channel are respectively communicated with the water inlet and the buffer flow channel.

After entering from the water inlet, raw water sequentially passes through the water inlet channel, the buffer flow channel and the diversion channel and then enters the circulation port, so that the precipitation path of large-particle impurities in the raw water is prolonged; meanwhile, the filter medium has a certain length, the buffer channel is not required to be too long, and the existence of the water inlet channel enables the filter medium to have a storage space.

Further, the spacer member includes a side plate, a resistance reducing plate and a top plate, the resistance reducing plate connects the side plate and the top plate and is inclined toward the direction of the filter medium, a gap between the side plate and the housing forms a buffer flow passage, the top plate and the housing form a flow guiding passage, and the flow opening is formed in the top plate.

The baffle plate is connected with the side plate and the top plate and inclines towards the direction of the filter medium, and is parallel to the filter medium relative to the baffle plate.

Further, the second filter medium is provided with a liquid inlet surface, a gap between the liquid inlet surface and the spacing element forms a filter flow passage, and the width of the filter flow passage is widened from narrow along the flowing direction.

After the raw water passes through the first filter material, the raw water enters the second filter material along the filter flow channel, and the width of the filter flow channel is widened from narrow, so that the flow speed of the raw water in the filter flow channel is reduced, the pollution blocking rate of the liquid inlet surface is reduced, and meanwhile, the reduced flow speed enables the raw water passing through the first filter material to uniformly reach each position of the liquid inlet surface of the second filter material, so that the filtration is relatively uniform.

Further, the first filter material is activated carbon wrapped by non-woven fabrics, and the second filter material is a microporous membrane filter element.

The raw water flows through the first filter material composed of the activated carbon wrapped by the non-woven fabric and then is led to the second filter material composed of the microporous membrane filter core, after impurities such as residual chlorine in the raw water are adsorbed and removed by the activated carbon, finer impurities such as bacteria are further removed by the microporous membrane filter core, and in addition, the activated carbon cannot flow into the liquid inlet flow channel along the flow opening of the spacing element due to wrapping of the activated carbon by the non-woven fabric.

Further, the housing comprises a top cover, an upper shell and a bottom shell, wherein the bottom shell, the upper shell and the spacing element are connected through welding, and the water inlet is formed in the upper shell.

The housing comprises top cap, epitheca and drain pan for the tap filter causes filtering capability decline in long-time use, and when the filter effect was not good, can solve through changing filter media, is favorable to practicing thrift the cost.

In summary, the utility model has at least the following advantages: a spacer element is arranged inside the housing, which surrounds the filter medium, raw water being able to enter the filter medium only from a flow opening arranged on the spacer element; the liquid inlet flow channel is arranged between the spacing element and the housing, raw water entering from the water inlet reaches the circulation port arranged on the spacing element along the liquid inlet flow channel, reaches the first filter material after passing through the circulation port, and then flows out from the water outlet through the second filter material, so that the raw water passes through the first filter material, most impurities such as residual chlorine contained in the raw water are removed, and then the raw water passes through the second layer, so that the impurities such as bacteria which are not trapped in the first filter material are further removed, and the purification degree of the obtained purified water is improved.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a front view of a faucet filter of embodiment 1;

fig. 2 is a partial enlarged view of faucet filter a.

In the figure, 1-a housing; 101-a water inlet; 102-a water outlet; 103-top cover; 104-an upper shell; 105-bottom shell; 2-spacer elements; 201-side plates; 202-a resistance reducing plate; 203-a top plate; 204-a flow-through port; 3-a liquid inlet flow channel; 301-buffer flow channel; 3010-buffer segment; 302-a flow guide channel; 303-water inlet channel; 4-a filter medium; 401-a first filter material; 402-a second filter; 4020-meniscus; 4021-filtration flow path.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

Example 1

As shown in fig. 1 and 2, a faucet filter comprises a housing 1, a spacer element 2 arranged in the housing, a liquid inlet channel 3 and a filter medium 4, wherein the housing is provided with a water inlet 101 and a water outlet 102, in the embodiment, the housing comprises a top cover 103, an upper shell 104 and a bottom shell 105, the upper shell 104 and the spacer element are connected through welding, and the water inlet 102 is arranged on the upper shell 104, so that the faucet filter can reduce the filtering capacity after long-time use, and when the filtering effect is poor, the faucet filter can be solved by replacing the filter medium, thereby being beneficial to saving the cost.

As shown in fig. 1, the spacer member 2 includes a side plate 201, a resistance reducing plate 202, and a top plate 203, the resistance reducing plate 202 connecting the side plate 201 and the top plate 203 and being inclined in the direction of the filter medium 4, and a flow port 204 communicating with the first filter medium is provided in the top plate of the spacer member and encloses the filter medium.

As shown in fig. 2, the liquid inlet channel 3 sequentially includes a buffer channel 301 and a guide channel 302 along the flowing direction, in this embodiment, the liquid inlet channel further includes a water inlet channel 303, two ends of the water inlet channel 303 are respectively communicated with the water inlet 101 and the buffer channel 301, raw water enters from the water inlet 11, and then sequentially passes through the water inlet channel 303, the buffer channel 301 and the guide channel 302 and then enters the flowing port 203, so that the precipitation path of large-particle impurities in the raw water is prolonged, meanwhile, the filter medium has a certain length, the buffer channel does not need to be too long, and the filter medium has a storage space due to the existence of the water inlet channel.

As shown in fig. 1, the buffer flow channel 301 is located at the side of the filter medium 4, the flow channel direction is from bottom to top, the width of the buffer flow channel is widened from narrow to wide, the widening angle is 5-15 °, the buffer flow channel is formed by the gap between the side plate 201 and the housing 1, the liquid inlet flow channel slows down the flow rate of raw water in the buffer flow channel to reduce the flushing force on the flow guide channel, meanwhile, continuous water flows to the flow guide channel, and no risk of flow interruption exists.

In this embodiment, the buffer flow channel is formed by connecting at least two buffer sections 3010 in series, so that when raw water flows through the multiple buffer sections, the flow rate is adjusted in a gradual manner, which is beneficial to better forming buffer, and in other embodiments, the buffer flow channel has only one buffer section.

The flow guide 302 is located on the top side of the filter medium 4, is formed by the gap between the top plate 203 and the housing 4, is recessed toward the flow port, and has an included angle of 1.5-5 ° between the fluid flow direction of the flow guide 302 toward the flow port and the horizontal direction, which is beneficial to improving the filtration efficiency.

In other embodiments, the liquid inlet channel composed of the water inlet channel 303, the buffer channel 301 and the guide channel 302 is embedded in the gap between the spacing element and the housing in the form of a pipeline.

The filter medium 4 is provided with the first filter material 401 and the second filter material 402 in sequence according to the fluid filtering direction, so that most of impurities such as residual chlorine contained in raw water passing through the first filter material are removed, and then the impurities such as bacteria which are not trapped in the first filter material are further removed through the second layer, thereby being beneficial to improving the cleanliness of the obtained purified water.

The first filter material 401 is activated carbon wrapped by non-woven fabrics, the second filter material 402 is a PES folding filter element, so that after impurities such as residual chlorine in raw water are adsorbed and removed by the activated carbon, finer impurities such as bacteria are further removed by the microporous membrane filter element, and the activated carbon cannot flow into the liquid inlet flow channel along the circulation port of the interval element due to wrapping of the activated carbon by the non-woven fabrics; the second filter 402 is provided with a liquid inlet surface 4020, and a gap between the liquid inlet surface and the spacing element forms a filter flow channel 4021, and the filter flow channel is widened from narrow along the flowing direction, so that the flowing speed of raw water in the filter flow channel is reduced, the dirt blocking rate of the liquid inlet surface is reduced, and meanwhile, the reduced flowing speed enables the raw water passing through the first filter to uniformly reach each position of the liquid inlet surface of the second filter, so that the filtration is relatively uniform.

The implementation principle of the embodiment is as follows: the inside of the housing is provided with a spacing element surrounding the filter medium, raw water flowing in from the water inlet of the housing sequentially passes through a flow inlet formed by a water inlet channel, a buffer channel and a guide channel, passes through a flow port arranged on the spacing element, sequentially passes through activated carbon wrapped by non-woven fabrics serving as a first filter material and a PES folded filter core serving as a second filter material according to the fluid filtering direction, and flows out from the water outlet.

While the preferred embodiments of the present utility model have been described in detail, it will be appreciated that those skilled in the art, upon reading the above teachings, may make various changes and modifications to the utility model. Such equivalents are also intended to fall within the scope of the utility model as defined by the following claims.

Claims

1. A faucet filter, comprising:

the housing is provided with a water inlet and a water outlet;

the faucet filter is characterized by further comprising:

2. The faucet filter of claim 1, wherein the liquid inlet flow path comprises a buffer flow path and a flow guide path in sequence along the flow direction, the buffer flow path being in communication with the water inlet, the flow guide path being in communication with the flow port.

3. The faucet filter of claim 2, wherein the buffer flow channel is located at a side of the filter medium with a flow channel direction from bottom to top, the buffer flow channel includes a buffer section, and the buffer section has a flow channel width that is widened from narrow to wide and a widening angle of 5 ° to 15 °.

4. A faucet filter according to claim 3, wherein the buffer flow path is comprised of at least two buffer segments in series.

5. The faucet filter of claim 2, wherein the flow guide channel is positioned on the top side of the filter media and is recessed toward the flow port, and wherein the flow guide channel has an angle of 1.5 ° to 5 ° with respect to the horizontal in the direction of fluid flow toward the flow port.

6. The faucet filter of claim 2, wherein the inlet flow passage further comprises an inlet channel, and wherein both ends of the inlet channel are respectively in communication with the water inlet and the buffer flow passage.

7. The faucet filter of claim 2, wherein the spacer element includes a side plate, a friction reducing plate, and a top plate, the friction reducing plate connecting the side plate and the top plate and being inclined toward the filter media, a gap between the side plate and the housing forming a buffer flow path, the top plate and the housing forming a flow guide path, the flow opening being provided in the top plate.

8. The faucet filter of claim 1, wherein the second filter material is provided with a liquid inlet surface, and a gap between the liquid inlet surface and the spacer element forms a filter flow passage, the filter flow passage being widened from narrow in a flow direction.

9. The faucet filter of claim 1, wherein the first filter material is a nonwoven fabric wrapped activated carbon and the second filter material is a microporous membrane filter element.

10. The faucet filter of claim 1, wherein the housing includes a top cover, an upper housing, and a bottom housing, the bottom housing, upper housing, and spacer element being connected by welding, the water inlet being provided on the upper housing.