CN219440952U - Water-stopping and leakage-preventing filter - Google Patents
Water-stopping and leakage-preventing filter Download PDFInfo
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- CN219440952U CN219440952U CN202320514246.5U CN202320514246U CN219440952U CN 219440952 U CN219440952 U CN 219440952U CN 202320514246 U CN202320514246 U CN 202320514246U CN 219440952 U CN219440952 U CN 219440952U
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Abstract
The water-stopping and leakage-preventing filter comprises a base and a filter body arranged on the base, wherein a filter cavity is arranged in the filter body, and the filter body is provided with a water inlet and a water outlet which are communicated with each other through a water channel of the filter cavity; the water inlet is provided with a water sealing piece, the water sealing piece is provided with at least one water inlet, and the water inlet is provided with a duckbill-shaped channel which is opened unidirectionally by means of water inlet pressure; the water stopping part is arranged at the water outlet and is used for preventing residual water from flowing out of the filtering body when the filtering body is separated from the base. Therefore, when the filter body needs to be replaced and the filter body is separated from the base, the duckbill-shaped channel arranged by the water sealing piece is automatically closed due to no water inlet pressure, the residual water is prevented from flowing out of the water inlet flow, and the water stopping part prevents the residual water from flowing out of the water outlet, so that the defect that the residual water of the filter element body leaks in the replacement process is overcome, the cleaning time of a user is shortened, and the user experience is improved.
Description
Technical Field
The utility model relates to the technical field of water purifying equipment, in particular to a water-stopping and leakage-preventing filter.
Background
At present, water purifying equipment is installed in kitchen and bathroom spaces in most families. When the water purifier is used, the water inlet of the water purifier is directly connected with municipal water supply, and the filter element in the water purifier filters tap water to obtain purified water with lower impurity content and concentrated water with higher impurity content for users to drink or use.
In order to achieve the best filtering effect, the filter element in the filter needs to be replaced periodically. When the filter element is installed or removed, the filter element is directly installed or removed on the filter element installation seat of the filter, however, when the filter element is removed, residual water exists in the filter element, and a leakage-proof structure is not arranged on the filter element, so that the residual water in the filter element is easy to leak out in the process of removing the filter element, the cleaning time of a user is increased, and the energy of the user is wasted.
Disclosure of Invention
Aiming at the defects existing in the background technology, the utility model aims to provide a water-stopping and leakage-preventing filter.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the water-stopping and leakage-preventing filter comprises a base and a filter body arranged on the base, wherein a filter cavity is arranged in the filter body, and the filter body is provided with a water inlet and a water outlet which are communicated with each other through water paths of the filter cavity; the water inlet is provided with a water sealing piece, the water sealing piece is provided with at least one water inlet, and the water inlet is provided with a duckbill-shaped channel which is opened unidirectionally by means of water inlet pressure; the water stopping part is arranged at the water outlet and is used for preventing residual water from flowing out of the filtering body when the filtering body is separated from the base.
Further, the wall surface of the water inlet is provided with a first inserting groove, the water sealing piece is provided with a first inserting part matched with the first inserting groove, the first inserting part is provided with a cavity, the top of the first inserting part is provided with an opening communicated with the cavity, and the cavity forms the duckbill channel.
Further, the water stopping part is a drain hole; when the filtering body is separated from the base, the drain hole can prevent residual water from flowing out of the filtering body under the action of atmospheric pressure.
Further, the water stopping part is a first one-way valve which is opened unidirectionally by means of drainage pressure.
Further, the water stopping part is a second one-way valve which is opened in the opposite direction of the water outlet direction, and the base is provided with a convex part; when the filtering body is arranged on the base, the convex part pushes and opens the second one-way valve, and when the filtering body is separated from the base, the second one-way valve is automatically closed.
Further, a filter element assembly is installed in the filter cavity, the filter element assembly comprises a fixing seat and a filter element body which is installed on the fixing seat in a sealing mode, a first water inlet and passing cavity is formed in a space between the filter element body and the fixing seat, and a first water draining and passing cavity is formed in an inner cavity of the filter element body.
Further, the fixing seat is provided with a second inserting groove, and one end of the filter element body is provided with a second inserting part matched with the second inserting groove.
Further, the filter body comprises an upper shell and a lower shell which are in sealing connection with each other, the fixing seat is positioned in the upper shell, the other end of the filter element body is in sealing connection with the lower shell, the other end of the filter element body is provided with a filtered water outlet, and the filtered water outlet is communicated with the water outlet which is formed in the lower shell.
Further, the lower shell is provided with a second water inlet and water passing cavity and a second water outlet and water passing cavity, and the water outlet is communicated with the second water outlet and water passing cavity; the second water inlet and passing cavity and the first water inlet and passing cavity are matched to form a water inlet cavity, and water flow in the water inlet cavity forms a water inlet waterway; the second drainage water passing cavity and the first drainage water passing cavity are matched to form a drainage cavity, and water flow in the drainage cavity forms a drainage waterway.
Further, a third inserting groove is formed in the filtered water outlet, and a third inserting portion in sealing fit with the third inserting groove is arranged on the lower shell.
The beneficial effects of the utility model are as follows:
1. the utility model provides a water-stopping and leakage-preventing filter, wherein a water sealing piece is arranged at a water inlet of a filter body, the water sealing piece is provided with a duckbill-shaped channel which is opened unidirectionally by means of water inlet pressure, and a water stopping part which is used for preventing residual water from flowing out of the filter body when the filter body is separated from a base is arranged at a water outlet of the filter body. Therefore, when the filter body needs to be replaced and the filter body is separated from the base, the duckbill-shaped channel arranged by the water sealing piece is automatically closed due to no water inlet pressure, the residual water is prevented from flowing out of the water inlet flow, and the water stopping part prevents the residual water from flowing out of the water outlet, so that the defect that the residual water of the filter element body leaks in the replacement process is overcome, the cleaning time of a user is shortened, and the user experience is improved.
2. According to the water-stopping and leakage-preventing filter, the first inserting grooves formed in the wall surface of the water inlet are matched with the first inserting parts formed in the water sealing piece, so that the installation efficiency of the water sealing piece is improved.
3. The utility model provides a water-stopping and leakage-preventing filter, wherein a water-stopping part is a drain hole; when the filtering body is separated from the base, the atmospheric pressure exists at the drainage hole to prevent the residual water body from flowing out of the filtering body.
4. The water-stopping and leakage-preventing filter provided by the utility model can also be a first one-way valve which is opened unidirectionally by means of water outlet pressure; when the filtering body is separated from the base, no water outlet pressure exists at this time, and the first one-way valve is automatically closed under the action of the spring, so that residual water is prevented from flowing out of the filtering body.
5. The water-stopping and leakage-preventing filter provided by the utility model can be provided with the water-stopping part which is also provided with the second one-way valve opened in the opposite direction of the water outlet direction; when the filtering body is arranged on the base, the convex part arranged on the base pushes the second one-way valve to open, and when the filtering body is separated from the base, the second one-way valve is automatically closed under the action of the spring to prevent residual water from flowing out of the filtering body. .
6. According to the water-stopping and leakage-preventing filter provided by the utility model, the other end of the filter element body, namely the end provided with the filtered water outlet, is in sealing fit with the second drainage water passing cavity of the lower shell, so that the inflow water can flow out of the filter after being filtered by the filter element, the second inflow water passing cavity in the lower shell is prevented from being directly communicated with the second drainage water passing cavity, and the filtering effect is ensured.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a water-stopping leak-proof filter of the present utility model;
FIG. 2 is an exploded view of a water stop leak-proof filter of the present utility model;
FIG. 3 is a cross-sectional view of a water stop leak-proof filter of the present utility model;
FIG. 4 is another angular cross-sectional view of a water stop leak-proof filter of the present utility model;
FIG. 5 is an exploded view of the filter body of a water stop leak-proof filter of the present utility model;
FIG. 6 is a schematic view of a seal of a water stop leak-proof filter of the present utility model;
FIG. 7 is a schematic view of water flow during water supply of the filter body of the present utility model;
FIG. 8 is a schematic view of water flow at another angle of the filter body of the present utility model;
FIG. 9 is an enlarged view of a portion of FIG. 7A;
FIG. 10 is an enlarged view of a portion of FIG. 8A;
FIG. 11 is a schematic view of the water flow of the filter body of the present utility model when the filter body is disengaged from the base;
FIG. 12 is a schematic view of water flow at another angle when the filter body of the present utility model is disengaged from the base;
FIG. 13 is an enlarged view of a portion of FIG. 11A;
FIG. 14 is an enlarged view of a portion of FIG. 12A;
in the figure, 10, a filter; 101. a filtering body; 1011. a water inlet; 1012. a water outlet; 102. a base; 201. an upper housing; 202. a lower housing; 301. a fixing seat; 302. a filter element body; 40. a water seal; 401. a water inlet; 402. a duckbill channel; 403. opening holes; 501. a first socket groove; 502. a second insertion groove; 503. a third insertion groove; 601. a first plug-in connection; 602. a second plug-in connection; 603. a third plug-in connection; 701. a first water inlet and passing cavity; 702. a second water inlet and passing cavity; 801. a first drainage water passing cavity; 802. a second drainage water passing cavity; 901. a first seal ring; 902. a second seal ring; 903. a third seal ring; 110. a water inlet waterway; 120. a water drainage channel; 130. atmospheric pressure.
Detailed Description
The utility model is described in detail below in connection with fig. 1-14.
Example 1
The water-stopping and leakage-preventing filter 10 comprises a base 102 and a filter body 101 arranged on the base 102, wherein a filter cavity is arranged in the filter body 101, and the filter body 101 is provided with a water inlet 1011 and a water outlet 1012 which are communicated with each other through a water channel of the filter cavity; the water inlet 1011 is provided with a water sealing member 40, the water sealing member 40 is provided with at least one water inlet 401, and the water inlet 401 is provided with a duckbill-shaped channel 402 which is unidirectionally opened by means of water inlet pressure; the water stop part is arranged at the water outlet 1012 and is used for preventing the residual water from flowing out of the filtering body 101 when the filtering body 101 is separated from the base 102.
Therefore, when the filter body 101 needs to be replaced and the filter body 101 is separated from the base 102, the duckbill-shaped channel 402 provided by the water sealing member 40 is automatically closed due to no water inlet pressure, so that the residual water is prevented from flowing out of the water inlet 1011, and the water stopping part prevents the residual water from flowing out of the water outlet 1012, thereby solving the defect that the residual water leaks in the replacement process of the filter element body 302, reducing the cleaning time of a user and improving the user experience.
In this embodiment, the end of the duckbill channel 402 is provided with an opening 403, and the duckbill channel 402 is made of an elastic material; when water is fed, the duckbill channel 402 is expanded outwards by the water pressure of the fed water, the opening 403 is opened, and the water outlet 1012 is normally discharged; when the filter body 101 needs to be replaced and separated from the base 102, the residual water in the filter body 101 flows back, the duckbill-shaped channel 402 is compressed inwards due to the pressure of the residual water, and the opening 403 is closed, so that the residual water cannot flow out of the filter body 101 from the water inlet 401. The water stop portion is a drain hole, and the drain hole has a smaller water outlet cross-sectional area, so that when the filter body 101 is separated from the base 102, the residual water is prevented from flowing out of the filter body 101 by the atmospheric pressure 130 existing at the drain hole. Therefore, when the filter body 101 is separated from the base 102, the leakage of the residual water from the water inlet 401 or the water outlet 1012 is effectively prevented.
In this embodiment, the water inlet 401 in the water sealing member 40 can be increased or decreased according to the actual situation; specifically, in the present embodiment, two water inlets 401 are provided, and a duckbill-shaped passage 402 and an opening 403 corresponding thereto.
In this embodiment, a wall surface of the water inlet 1011 is provided with a first plugging groove 501, the water sealing member 40 is provided with a first plugging portion 601 adapted to the first plugging groove 501, the first plugging portion 601 is provided with a cavity, the top of the first plugging portion 601 is provided with an opening 403 communicated with the cavity, and the cavity forms a duckbill channel 402.
In this embodiment, a filter element assembly is installed in the filter cavity, the filter element assembly includes a fixing seat 301 and a filter element body 302 sealingly installed on the fixing seat 301, a space between the filter element body 302 and the fixing seat 301 forms a first water inlet and passing cavity 701, and a cavity inside the filter element body 302 forms a first water outlet and passing cavity 801; further, the fixing seat 301 is provided with a second plugging slot 502, one end of the filter element body 302 is provided with a second plugging portion 602 in sealing fit with the second plugging slot 502, specifically, a first sealing ring 901 is sleeved outside the second plugging portion 602, and the first sealing ring 901 is in sealing abutting connection with the second plugging slot 502.
In this embodiment, the filtering body 101 includes an upper housing 201 and a lower housing 202 that are in sealing connection with each other, the fixing seat 301 is in sealing fit with the upper housing 201, the other end of the filtering core body 302 is in sealing fit with the lower housing 202, the other end of the filtering core body 302 is provided with a filtered water outlet, the filtered water outlet is communicated with a water outlet 1012 provided in the lower housing 202, specifically, a second sealing ring 902 is sleeved outside the fixing seat 301, the second sealing ring 902 is in sealing abutting connection with an inner wall surface of the upper housing 201, a third inserting groove 503 is provided at the filtered water outlet, a third inserting portion 603 in sealing fit with the third inserting groove 503 is provided in the lower housing 202, and a third sealing ring 903 is provided between the third inserting groove 503 and the third inserting portion 603.
In this embodiment, the lower housing 202 is provided with a second water inlet and outlet cavity 702 and a second water outlet cavity 802, and the water outlet 1012 is communicated with the second water outlet cavity 802; the second water inlet and passing cavity 702 and the first water inlet and passing cavity 701 are matched to form a water inlet cavity, and water flow in the water inlet cavity forms the water inlet waterway 110; the second water discharge and passing chamber 802 and the first water discharge and passing chamber 801 cooperate to form a water discharge chamber, and water flow in the water discharge chamber forms the water discharge path 120.
Therefore, the end of the filter element body 302 provided with the filtered water outlet is in sealing fit in the second drainage water passing cavity 802 of the lower housing 202, so that the water inlet channel 110 can flow out of the filter body 101 only after being filtered by the filter element body 302, and the second water inlet water passing cavity 702 in the lower housing 202 is prevented from being directly communicated with the second drainage water passing cavity 802, and the filtering effect is ensured.
The utility model provides a water-stopping and leakage-preventing filter 10, which has the following working process:
when water is fed, as shown in fig. 7-10. The duckbill channel 402 expands outwardly under water pressure, the opening 403 opens, and the inlet water channel 110 flows into the cartridge body 302, is filtered, and flows out of the outlet 1012.
When water inflow is stopped or the filter body 101 is detached from the base 102, as shown in fig. 11 to 14. The reflux pressure of the residual water in the filter body 101 causes the duckbill-shaped channel 402 to be compressed inwards, the opening 403 is closed under the action of water pressure, the residual water cannot flow out of the water inlet 401, the water outlet cross section area of the drain hole is smaller, when the filter body 101 is separated from the base 102, the residual water is prevented from flowing out of the filter body 101 by using the atmospheric pressure 130 existing at the drain hole, and water stopping and leakage prevention are realized.
Example two
The difference between the first embodiment and the second embodiment is that the water stop portion in the first embodiment is a first check valve that is opened in one direction by means of drainage pressure. Specifically, when the water inlet 401 is normally feeding water, the first one-way valve provided at the water outlet 1012 is opened under the action of the water outlet pressure, and when the water inlet 401 stops supplying water or the filtering body 101 is separated from the base 102, the water outlet 1012 is not pressurized, and the first one-way valve is automatically closed under the action of the spring, so as to prevent the residual water from flowing out of the filtering body 101. Therefore, when the filter body 101 is separated from the base 102, the leakage of the residual water from the water inlet 401 or the water outlet 1012 can be effectively prevented.
Example III
The difference between the present embodiment and the first embodiment is that the water stop portion and the base 102, specifically, the water stop portion is a second one-way valve opened in the opposite direction to the water outlet direction, and the base 102 is provided with a protrusion for pushing and opening the second one-way valve; when the filter body 101 is arranged on the base 102, the convex part pushes to open the second one-way valve, and the water outlet 1012 normally discharges water; when the filter body 101 is separated from the base 102, the second one-way valve is automatically closed under the action of the spring, so that the residual water is prevented from flowing out of the filter body 101. Therefore, when the filter body 101 is separated from the base 102, the leakage of the residual water from the water inlet 401 or the water outlet 1012 can be effectively prevented.
The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and implement it, and not to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.
Claims (10)
1. The water-stopping and leakage-preventing filter comprises a base and a filter body arranged on the base, and is characterized in that a filter cavity is arranged in the filter body, and the filter body is provided with a water inlet and a water outlet which are communicated with each other through a water channel of the filter cavity; the water inlet is provided with a water sealing piece, the water sealing piece is provided with at least one water inlet, and the water inlet is provided with a duckbill-shaped channel which is opened unidirectionally by means of water inlet pressure; the water stopping part is arranged at the water outlet and is used for preventing residual water from flowing out of the filtering body when the filtering body is separated from the base.
2. The water-stopping and leakage-preventing filter according to claim 1, wherein a first inserting groove is formed in the inner wall surface of the water inlet, a first inserting portion matched with the first inserting groove is formed in the water sealing piece, a cavity is formed in the first inserting portion, an opening communicated with the cavity is formed in the top of the first inserting portion, and the cavity forms the duckbill-shaped channel.
3. The water-stopping and leakage-preventing filter according to claim 2, wherein the water-stopping portion is a drain hole; when the filtering body is separated from the base, the drain hole can prevent residual water from flowing out of the filtering body under the action of atmospheric pressure.
4. The water stop leak-proof filter as defined in claim 2, wherein the water stop portion is a first check valve which is opened in one direction by means of a drainage pressure.
5. The water-stopping and leakage-preventing filter according to claim 2, wherein the water-stopping portion is a second check valve opened in a direction opposite to the water-discharging direction, and the base is provided with a convex portion; when the filtering body is arranged on the base, the convex part pushes and opens the second one-way valve, and when the filtering body is separated from the base, the second one-way valve is automatically closed.
6. The water-stop and leakage-proof filter according to claim 1, wherein a filter element assembly is installed in the filter cavity, the filter element assembly comprises a fixed seat and a filter element body which is installed on the fixed seat in a sealing manner, a space between the filter element body and the fixed seat forms a first water inlet and water passing cavity, and a first water draining and passing cavity is formed in an inner cavity of the filter element body.
7. The water-stopping and leakage-preventing filter according to claim 6, wherein the fixing seat is provided with a second inserting groove, and one end of the filter element body is provided with a second inserting part matched with the second inserting groove.
8. The water-stopping and leakage-preventing filter according to claim 6, wherein the filter body comprises an upper shell and a lower shell which are in sealing connection with each other, the fixing seat is positioned in the upper shell, the other end of the filter element body is in sealing connection with the lower shell, the other end of the filter element body is provided with a filtered water outlet, and the filtered water outlet is communicated with the water outlet arranged in the lower shell.
9. The water-stopping leak-proof filter as defined in claim 8, wherein the lower housing is provided with a second water inlet and outlet through-cavities, the water outlet being in communication with the second water outlet through-cavity; the second water inlet and passing cavity and the first water inlet and passing cavity are matched to form a water inlet cavity, and water flow in the water inlet cavity forms a water inlet waterway; the second drainage water passing cavity and the first drainage water passing cavity are matched to form a drainage cavity, and water flow in the drainage cavity forms a drainage waterway.
10. The water-stopping and leakage-preventing filter according to claim 9, wherein a third inserting groove is arranged at the filtered water outlet, and a third inserting part which is in sealing fit with the third inserting groove is arranged on the lower shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320514246.5U CN219440952U (en) | 2023-03-16 | 2023-03-16 | Water-stopping and leakage-preventing filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320514246.5U CN219440952U (en) | 2023-03-16 | 2023-03-16 | Water-stopping and leakage-preventing filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219440952U true CN219440952U (en) | 2023-08-01 |
Family
ID=87422137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320514246.5U Active CN219440952U (en) | 2023-03-16 | 2023-03-16 | Water-stopping and leakage-preventing filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219440952U (en) |
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2023
- 2023-03-16 CN CN202320514246.5U patent/CN219440952U/en active Active
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