CN210145644U - Contrary structure that ends of filter core - Google Patents
Contrary structure that ends of filter core Download PDFInfo
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- CN210145644U CN210145644U CN201822159979.3U CN201822159979U CN210145644U CN 210145644 U CN210145644 U CN 210145644U CN 201822159979 U CN201822159979 U CN 201822159979U CN 210145644 U CN210145644 U CN 210145644U
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Abstract
The utility model provides a contrary structure that ends of filter core, including first body, second body, dabber, lower cover, the second body comprises inner tube, outer tube, low tube. The outer pipe is sleeved on the periphery of the inner pipe to form the upper portion of the second pipe body, the lower pipe is located below the inner pipe and communicated with the inner pipe, the outer pipe of the second pipe body is inserted into the first pipe body, and the lower cover is installed at the bottom end of the lower pipe of the second pipe body. A second sealing ring is arranged between the inner pipe and the outer pipe of the second pipe body, the upper end and the lower end of the mandrel are respectively in contact with the upper end of the lower pipe of the second pipe body and the lower cover, a spring is sleeved on the periphery of the lower portion of the mandrel, an annular second groove is formed in the upper portion of the mandrel, and a fourth sealing ring is arranged in the second groove. The utility model discloses a be provided with the second sealing washer of dabber and umbelliform structure and realize the delivery port of filter core and the stagnant water of water inlet, reach dual stagnant water effect.
Description
Technical Field
The utility model relates to a purifier field, concretely relates to contrary structure that ends of filter core.
Background
Along with the gradual deterioration of water quality, the water purifier has slowly walked in the family of vast users, and the role that the water purifier plays in user's daily life is more and more important. The water purifier can effectively filter rust, sand, colloid in water and adsorb chemical agents such as residual chlorine, odor, abnormal color, pesticide and the like in water. Can effectively remove impurities such as bacteria, germs, toxins, heavy metals and the like in water, and effectively solves the problem of endemic diseases caused by overproof harmful substances in underground water in many places. The filter core is the core component in the purifier, plays decisive effect to the purification of quality of water, has delivery port and water inlet on the filter core, and delivery port and water inlet all need the valve to control. At present, two one-way check valves are commonly assembled to realize the water stopping function of a water outlet and a water inlet, and the operation is complex in assembly and has high requirements on structural space.
SUMMERY OF THE UTILITY MODEL
The utility model provides a contrary structure that ends of filter core to the delivery port and the water inlet that solve the filter core need be used for two one-way contrary valves that ends to come the problem of stagnant water.
In order to solve the technical problem, the utility model provides a contrary structure that ends of filter core, including first body, second body, dabber, lower cover, the second body comprises inner tube, outer tube, low tube. The outer pipe is sleeved on the periphery of the inner pipe to form the upper portion of the second pipe body, the lower pipe is located below the inner pipe and communicated with the inner pipe, the outer pipe of the second pipe body is inserted into the first pipe body, and the lower cover is installed at the bottom end of the lower pipe of the second pipe body. A second sealing ring is arranged between the inner pipe and the outer pipe of the second pipe body, the upper end and the lower end of the mandrel are respectively in contact with the upper end of the lower pipe of the second pipe body and the lower cover, a spring is sleeved on the periphery of the lower portion of the mandrel, an annular second groove is formed in the upper portion of the mandrel, and a fourth sealing ring is arranged in the second groove.
Preferably, the top end of the inner surface of the first pipe body is provided with a circle of first protrusions to block the upper edge of the outer pipe of the second pipe body.
Preferably, the second sealing ring is of an umbrella-shaped structure, the center of the second sealing ring is tightly sleeved on the inner pipe of the second pipe body, and the edge of the second sealing ring can abut against the inner wall of the outer pipe of the second pipe body.
Preferably, the diameter of the lower pipe of the second pipe body is larger than that of the inner pipe thereof.
Preferably, a third groove is formed on the lower cover, so that the mandrel can move downwards.
Preferably, the mandrel has a T-shaped structure consisting of a horizontal part and a vertical part, and the second groove is disposed in the horizontal part.
Preferably, the upper and lower ends of the spring are fixed to the lower surface of the horizontal part of the mandrel and the upper surface of the lower cover, respectively.
Preferably, the outer upper portion of the first pipe body is provided with an annular first groove, and a first sealing ring is arranged in the first groove.
Preferably, a fourth groove is formed in the outer lower portion of the lower pipe of the second pipe body, and a third sealing ring is arranged in the fourth groove.
The utility model discloses the beneficial effect who brings: the utility model provides a pair of contrary structure of ending of filter core realizes the delivery port of filter core and the stagnant water of water inlet through the second sealing washer that is provided with dabber and umbelliform structure, the effectual inner structure space that has saved. When the filter element is taken out, the mandrel moves upwards under the action of the spring, the fourth sealing ring is sealed with the inner cavity of the second tube body, so that the water purification channel is in a closed water cut-off state, and the second sealing ring can be outwards expanded under the action of water pressure due to the elastic action under the condition of no pressure of the second sealing ring, so that the raw water channel is in a closed water cut-off state. When the filter element is matched with the machine head, the mandrel moves downwards under the action of external force, the fourth sealing ring and the inner cavity body are in an unsealed state, the water purifying channel is in an open water passing state, the second sealing ring contracts inwards in appearance under the action of water pressure, namely the second sealing ring contracts inwards under the action of water pressure, and the raw water channel is in an open water passing state.
Drawings
Fig. 1 is a partial cross-sectional view of a clear water path according to an embodiment of the invention.
Fig. 2 is a partial cross-sectional view with a filter cartridge removed according to an embodiment of the present invention.
Fig. 3 is an exploded view of components according to an embodiment of the present invention.
The sealing structure comprises a first pipe body, a second pipe body, a first groove, a first sealing ring, a second sealing ring, a first sealing ring, a second sealing ring, a third sealing ring, a first sealing ring, a second sealing ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-3, the utility model provides a pair of contrary structure that ends of filter core, including first body 1, second body 2, dabber 3, lower cover 4, second body 2 comprises inner tube 202, outer tube 203, low tube 204. The outer pipe 203 is sleeved on the outer periphery of the inner pipe 202 to form the upper part of the second pipe body 2, the lower pipe 204 is positioned below the inner pipe 202 and communicated with the inner pipe 202, the outer pipe 203 of the second pipe body 2 is inserted into the first pipe body 1, and the bottom end of the lower pipe 204 of the second pipe body 2 is provided with the lower cover 4. A second sealing ring 201 is arranged between the inner pipe 202 and the outer pipe 203 of the second pipe body 2, the upper end and the lower end of the mandrel 3 are respectively contacted with the upper end of the lower pipe 204 of the second pipe body 2 and the lower cover 4, a spring 302 is sleeved on the periphery of the lower part of the mandrel 3, an annular second groove is formed in the upper part of the mandrel 3, and a fourth sealing ring 301 is arranged in the second groove. The non-return structure is arranged in the inner cavity of the inner core 5 and positioned at the upper part of the inner core 5 to stop the inflow of raw water and the outflow of purified water.
Further, the top end of the inner surface of the first pipe 1 is provided with a ring of first protrusions to block the upper edge of the outer pipe 203 of the second pipe 2.
The second sealing ring 201 is of an umbrella-shaped structure, the center of the second sealing ring 201 is tightly sleeved on the inner pipe 202 of the second pipe body 2, the edge of the inner pipe 202 can abut against the inner wall of the outer pipe 203 of the second pipe body 2, when the filter element is matched with the machine head, raw water flows downwards from the upper surface of the inner pipe, the upper surface of the second sealing ring 201 impacts the edge of the second sealing ring 201 to be retracted, namely the second sealing ring 201 retracts under the action of water pressure, and the raw water flows into a raw water channel from the inner wall of the outer pipe 203 of the second pipe body 2. When the filter core takes off, the water between the inner core 5 of filter core and the shell 6 has the tendency of backward flow, arrives as rivers the lower surface of second sealing washer 201 makes second sealing washer 201 is opened outward and is out of shape, and second sealing washer 201 can be opened outward because of elastic action under the no pressure condition, second sealing washer 201 edge can support the inner wall of second body 2 outer tube 203 plugs up the raw water backward flow.
The diameter of the lower tube 204 of the second tubular body 2 is larger than that of the inner tube 202, and the joint of the lower tube 204 and the inner tube 202 forms a step which blocks the top end of the mandrel 3.
A third recess is provided in the upper surface of the lower cover 4 so that the spindle 3 can move downwards, and when the filter cartridge is mated with the head, a rod on the head will abut against the spindle 3 and move it downwards.
The mandrel 3 is of a T-shaped structure consisting of a horizontal part and a vertical part, the second groove is arranged on the horizontal part, and the upper end and the lower end of the spring 302 are respectively fixed below the horizontal part of the mandrel 3 and above the lower cover 4.
The outer upper portion of first body 1 is provided with annular first recess 101 just be provided with first sealing washer 102 in the first recess 101, the outer lower part of the lower tube 204 of second body 2 is provided with the fourth recess, just be provided with third sealing washer 205 in the fourth recess, first sealing washer 102 with third sealing washer 205 can prevent that water purification and raw water from mixing.
Under the condition that the mandrel 3 is not stressed, the fourth sealing ring 301 can just block the water outlet. When the filter element is matched with the machine head, the rod on the machine head is propped against the mandrel 3 and enables the mandrel 3 to move downwards, the fourth sealing ring 301 also moves downwards, the water outlet is opened, and therefore the purified water flows out along the second pipe body 2. Meanwhile, the raw water flows downwards from the upper surface and impacts the upper surface of the second sealing ring 201 to retract the edge of the second sealing ring 201, that is, the second sealing ring 201 retracts under the action of water pressure, and the raw water flows into the raw water channel from the inner wall of the outer pipe 203 of the second pipe body 2.
When the filter element is taken down, the filter element is not in contact with the machine head any more, the spring 302 rebounds to enable the mandrel 3 to move upwards, the horizontal part of the mandrel 3 abuts against the upper edge of the lower pipe 204 of the second pipe body 2, and the fourth sealing ring 301 can just block the water outlet. Meanwhile, the second sealing ring 201 can expand outwards due to the elastic action under the non-pressure condition, water between the inner core 5 and the outer shell 6 of the filter element tends to flow back, when water flows to the lower surface of the second sealing ring 201, the second sealing ring 201 deforms in an expanding way, the edge of the second sealing ring 201 can abut against the inner wall of the outer pipe 203 of the second pipe body 2, the backflow of raw water is blocked, and therefore the double-water-stopping effect is achieved.
To sum up, the utility model provides a pair of contrary structure of ending of filter core realizes the delivery port of filter core and the stagnant water of water inlet through the second sealing washer that is provided with dabber and umbelliform structure, the effectual interior structure space that has saved. When the filter element is taken out, the mandrel moves upwards under the action of the spring, the fourth sealing ring is sealed with the inner cavity of the second tube body, so that the water purification channel is in a closed water cut-off state, and the second sealing ring can be outwards expanded under the action of water pressure due to the elastic action under the condition of no pressure of the second sealing ring, so that the raw water channel is in a closed water cut-off state. When the filter element is matched with the machine head, the mandrel moves downwards under the action of external force, the fourth sealing ring and the inner cavity body are in an unsealed state, the purified water channel is in an open water-passing state, the second sealing ring contracts inwards under the action of water pressure, namely the second sealing ring contracts inwards under the action of water pressure, and the raw water channel is in an open water-passing state
The above description is only an example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. The non-return structure of the filter element is characterized by comprising a first tube body (1), a second tube body (2), a mandrel (3) and a lower cover (4), wherein the second tube body (2) consists of an inner tube (202), an outer tube (203) and a lower tube (204), the outer tube (203) is sleeved on the periphery of the inner tube (202) to form the upper part of the second tube body (2), the lower tube (204) is positioned below the inner tube (202) and communicated with the inner tube (202), the outer tube (203) of the second tube body (2) is inserted into the first tube body (1), the lower cover (4) is installed at the bottom end of the lower tube (204) of the second tube body (2), a second sealing ring (201) is arranged between the inner tube (202) and the outer tube (203) of the second tube body (2), the upper end and the lower end of the mandrel (3) are respectively contacted with the upper end of the lower tube (204) of the second tube body (2) and the lower cover (4), the periphery of the lower portion of the mandrel (3) is sleeved with a spring (302), an annular second groove is formed in the upper portion of the mandrel (3), and a fourth sealing ring (301) is arranged in the second groove.
2. Non-return structure of a cartridge according to claim 1, characterised in that the top end of the internal surface of the first tubular body (1) is provided with a ring of first projections to block the upper edge of the external tube (203) of the second tubular body (2).
3. The non-return structure of a filter cartridge according to claim 2, characterized in that the second sealing ring (201) is an umbrella-shaped structure, the center of the second sealing ring (201) is tightly sleeved on the inner tube (202) of the second tube (2) and the edge of the second sealing ring can abut against the inner wall of the outer tube (203) of the second tube (2).
4. Non-return structure for a filter cartridge according to claim 3, characterised in that the lower tube (204) of the second tubular body (2) has a diameter greater than the diameter of its inner tube (202).
5. Non-return structure for a cartridge according to claim 4, characterised in that the lower cover (4) is provided with a third groove on it, so that the spindle (3) can move downwards.
6. Non-return structure of a filter cartridge according to claim 5, characterised in that the mandrel (3) is of T-shaped configuration consisting of a horizontal part and a vertical part, the second recess being provided in the horizontal part.
7. The non-return structure of a filter cartridge according to claim 6, wherein the upper and lower ends of the spring (302) are fixed to the lower surface of the horizontal portion of the spindle (3) and the upper surface of the lower cover (4), respectively.
8. Non-return structure of a filter cartridge according to one of claims 1 to 7, characterised in that the outer upper part of the first tubular body (1) is provided with a first annular groove (101) and in that the first groove (101) is provided with a first sealing ring (102).
9. Non-return structure of a filter cartridge according to claim 8, characterized in that the outer lower part of the lower tube (204) of the second tubular body (2) is provided with a fourth groove and in that said fourth groove is provided with a third sealing ring (205).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822159979.3U CN210145644U (en) | 2018-12-21 | 2018-12-21 | Contrary structure that ends of filter core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822159979.3U CN210145644U (en) | 2018-12-21 | 2018-12-21 | Contrary structure that ends of filter core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210145644U true CN210145644U (en) | 2020-03-17 |
Family
ID=69754172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822159979.3U Active CN210145644U (en) | 2018-12-21 | 2018-12-21 | Contrary structure that ends of filter core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210145644U (en) |
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2018
- 2018-12-21 CN CN201822159979.3U patent/CN210145644U/en active Active
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