CN210814167U - A filter with one-way valve function - Google Patents

Abstract

The utility model provides a take filter of check valve function, including filter body, filter body has communicating water inlet and delivery port, be equipped with the filtration piece that is used for the drainage between water inlet and the delivery port, the delivery port still is equipped with the sealed pad corresponding with it, the sealed pad is restricted to be close to or keeps away from along the direction of delivery port comes and goes to remove to open or the shutoff the delivery port realizes the one-way switch-on of delivery port. The filter can realize the filtering effect, can also play the one-way effect of conducting, effectively prevents the backflow in the water route, and has simple structure and practicality.

Description

A filter with one-way valve function

technical field

The utility model relates to the field of water filtration, in particular to a filter with a one-way valve function.

Background technique

The smart toilet cover/device has very high water quality requirements. If there are impurities and foreign objects in the water, it will easily lead to the failure of the function of the heating tube or flowmeter. Therefore, many products are now adding three-pass filtration and braided tubes to the external water inlet equipment of the product. Filters or filters, etc. to prevent impurities from entering the product and causing functional failure. However, the filters of these products are external, and the product water inlet is designed to be exposed. During the installation or transportation of three-pass filtration, braided tube filtration or filters, foreign matter has entered the product waterway, which will lead to Product functionality fails.

At present, in order to solve this problem, some manufacturers only add dust caps to the water inlet end of the smart toilet cover/apparatus to prevent impurities from entering during transportation, or it is unavoidable to prevent debris from entering the waterway during installation. After that, a built-in filter is installed at the water inlet to replace the external three-pass filter, braided tube filter, filter, dust cap and other structures, which can effectively solve the above problems. However, there is still a backflow phenomenon in the waterway of the smart toilet cover/apparatus, and this problem still needs to be solved.

Utility model content

Therefore, the utility model provides a filter with a one-way valve function, which can effectively prevent the backflow of the water circuit.

For achieving the above object, the technical scheme that the utility model provides is:

A filter with a one-way valve function includes a filter body, the filter body has a water inlet and a water outlet that communicate with each other, and a filter element for filtering water is arranged between the water inlet and the water outlet. The water outlet is also provided with a corresponding gasket, and the gasket is restricted to move back and forth in the direction of approaching or away from the water outlet to open or block the water outlet and realize the one-way guide of the water outlet. Pass.

Further, the filter body has a first end, a second end, and a connecting wall disposed between the first end and the second end, the filter body seals the waterway through the connecting wall, and the inlet The water outlet and the water outlet are respectively opened on the first end and the second end of the filter body.

Further, an annular groove is recessed on the connecting wall of the filter body, the annular groove is respectively connected to the water inlet and the water outlet, and a flow restriction ring is arranged in the annular groove, and the flow restriction ring is not Completely block the passage between the water inlet and the water outlet.

Further, the groove wall of the annular groove extends into the filter body to form a water-passing hole, and the water-passing hole penetrates to the second end of the filter body to form the water outlet, and the flow restricting ring is incomplete. The opening formed on the groove wall of the annular groove is blocked by the water passage hole.

Further, the filter body is further provided with a guide column, the axial direction of the guide column is parallel to the moving direction of the sealing gasket, and the sealing gasket is movably sleeved on the guiding column.

Further, a detachable contact head is also connected to the guide column.

Further, the filter element is a filter structure integrally formed by the filter body.

Further, the filter element and the filter body are separate structures, and the filter element is detachably arranged on the filter body.

Further, the filter body is provided with a filter cavity, the water inlet directly penetrates into the filter cavity, the filter cavity is also provided with an outlet connected to the water outlet, the filter element is a filter screen, and the filter screen can be The disassembly is arranged in the filter cavity, and is located between the water inlet and the outlet of the filter cavity.

Further, the filter body is also provided with a detachable rib extending to the water inlet.

The technical scheme provided by the present utility model has the following beneficial effects:

A corresponding sealing gasket is arranged at the water outlet of the filter. The sealing gasket is restricted to move back and forth in the direction close to or away from the water outlet. The water flows in from the water inlet of the filter and is filtered by the filter element. Then go through the water outlet to the gasket, and open the gasket by hydraulic pressure (even if the gasket moves away from the water outlet) to achieve water inflow; when the water flow reverses, the reverse flow acts on the gasket, making the gasket move closer to the water outlet. The direction of the water outlet moves to block the water outlet to prevent backflow. The filter is arranged at the water inlet end of the intelligent toilet cover/device, which not only has a filtering function, but also has the effect of one-way conduction, effectively preventing the backflow of the waterway, and the filter has a simple and practical structure.

Description of drawings

Fig. 1 shows the three-dimensional schematic diagram of the filter with one-way valve function in the first embodiment;

Figure 2 shows a cross-sectional view of the filter with a one-way valve function in the first embodiment in a one-way water inlet state;

3 is a cross-sectional view of the filter with the check valve function in the first embodiment in the state of preventing backflow;

Fig. 4 shows the exploded schematic diagram of the filter with one-way valve function in the first embodiment;

5 is a schematic structural diagram of a filter body with a one-way valve function in Embodiment 1;

FIG. 6 is a schematic perspective view of the filter with one-way valve function in the second embodiment;

FIG. 7 is a cross-sectional view of the filter with a one-way valve function in the second embodiment.

Detailed ways

To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be combined with the relevant description of the specification to explain the operation principles of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible embodiments and the advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are often used to represent similar components.

The present utility model will now be further described with reference to the accompanying drawings and specific embodiments.

Example 1

1 to 5, the present embodiment provides a filter with a one-way valve function, including a filter body 10, the filter body 10 has a water inlet 101 and a water outlet 102 that communicate with each other. A filter element 20 for filtering water is provided between the water outlet 101 and the water outlet 102, and the water outlet 102 is also provided with a corresponding gasket 30, and the gasket 30 is limited to be close to or away from the outlet. The direction of the water outlet 102 is moved back and forth to open or block the water outlet 102 and realize the one-way conduction of the water outlet 102 .

The water flows in from the water inlet 101 of the filter, is filtered by the filter element 20, and then passes through the water outlet 102 to the gasket 30, and the gasket 30 is pushed up by the water pressure (even if the gasket 30 moves away from the water outlet 102) To achieve water inflow, as shown in Figure 2. When backflow occurs in the waterway, the backflow water acts on the gasket 30 to move the gasket 30 toward the water outlet 102 to block the water outlet 102 to prevent backflow, as shown in FIG. 3 . The filter is arranged at the water inlet end of the intelligent toilet cover/device, which not only has a filtering function, but also has the effect of one-way conduction, effectively preventing the backflow of the waterway, and the filter has a simple and practical structure. Of course, in other embodiments, the filter with one-way valve function can also be used in other waterways, such as drinking water waterways, etc., which will not be described in detail here.

Further, in this embodiment, the filter body 10 has a first end (the lower end in FIG. 2 ), a second end (the upper end in FIG. 2 ), and the filter body 10 is provided on the first end and the second end. The connecting wall 103 between the ends, the filter body 10 seals the water path through the connecting wall 103 , the water inlet 101 and the water outlet 102 are respectively opened on the first end and the second end of the filter body 10 . It can be directly plugged into the water pipeline, and the operation is simple. Still further, an annular sealing groove 16 is recessed on the connecting wall 103 of the filter body 10 , and a sealing ring 51 is arranged in the annular sealing groove 16 , and the connecting wall 103 of the filter body 10 communicates with the filter body 10 through the sealing ring 51 The inner wall of the water pipeline is completely sealed, and the sealing performance is better. Of course, in other embodiments, the filter body 10 may also adopt other structures, for example, the water inlet 101 and the water outlet 102 are arranged on the same side or adjacent sides.

Further, in this embodiment, the filter body 10 is further provided with a guide post 17 , the axial direction of the guide post 17 is parallel to the moving direction of the gasket 30 , and the gasket 30 is movably sleeved on the guide On the column 17, the gasket 30 is guided by the guide column 17, and the movement is more stable. Of course, in other embodiments, the guide post 17 can also be replaced with a guide groove that also has a guiding function, or other structures capable of restricting the movement of the sealing gasket 30 in the above-mentioned manner.

Further, in this embodiment, a detachable abutting head 40 is also connected to the guide post 17, and the abutting head 40 can abut the sealing gasket 30, so as to limit the movable distance of the sealing gasket 30 and prevent the sealing gasket 30 from dislocating; and The detachable arrangement of the abutting head 40 facilitates the mounting and dismounting of the sealing gasket 30 . Specifically, in this embodiment, a slot 41 is provided on the interference head 40 , and the guide post 17 is detachably and fixedly inserted in the slot 41 of the interference head 40 . Of course, in other embodiments, the detachable arrangement of the guide post 17 and the contact head 40 can also be realized by adopting other structures such as screw connection.

Further, in this embodiment, an annular groove 14 is recessed on the connecting wall 103 of the filter body 10 , and the annular groove 14 is connected to the water inlet 101 and the water outlet 102 respectively. Specifically, the groove wall of the annular groove 14 extends into the filter body 10 to form a water passage hole 15 , and the water passage hole 15 penetrates to the second end of the filter body 10 to form the water outlet 102 . Of course, the water outlet 102 is formed. However, in other embodiments, a water channel can also be recessed on the connecting wall of the filter body 10, and the flow of the filter water channel can be realized by being enclosed with the inner wall of the external water pipe.

Still further, in this embodiment, the water passing holes 15 and the water outlet 102 formed at the second end of the filter body 10 are provided with two to meet the water output; the guide column 17 is formed by the filter. The center position of the second end of the body 10 extends outward, and the two water outlets 102 are symmetrically arranged in the circumferential direction with the guide column 17 as the center, so that the water flow from the two water outlets 102 acts on the water pressure of the gasket symmetrically, The translation of the gasket 30 is achieved. Of course, in other embodiments, the number of the water passage holes 15 and/or the water outlets 102 can be set to one or more according to the actual needs. When there are multiple water outlets 102, the preferred solution is to set the guide column 17 as the center on the circumference. Symmetrical arrangement in the direction, of course, is not limited to this.

Further, in this embodiment, the filter element 20 and the filter body 10 are separate structures, and the filter element 20 is detachably disposed on the filter body 10 to facilitate the removal and washing of the filter element 20 .

Further, in this embodiment, the filter body 10 is provided with a filter cavity 11, the water inlet 101 is directly connected to the filter cavity 11, and the filter cavity 11 is also provided with an outlet 12 that communicates with the water outlet 102, so The filter element 20 is a filter screen, and the filter screen 20 is detachably disposed in the filter cavity 11 and located between the water inlet 101 and the outlet 12 of the filter cavity 11 . Specifically, the filter cavity 11 is a cylindrical cavity, the water inlet 101 is located on one of the end faces of the filter cavity 11 , the outlet 12 of the filter cavity 11 is provided on the connecting wall 103 of the filter body 10 , and filters The outer circumference of the cavity 11 is formed with the outlet 12, and the filter element is specifically an annular filter screen, and the annular filter screen is attached to the peripheral side of the filter cavity to realize filtering; the connecting wall 103 between the outlet 12 and the annular groove 14 The inner recess forms a flow gap 13 . The water flowing in through the water inlet 101 goes through the filter cavity 11 , the annular filter screen 20 , the outlet 12 , the circulation gap 13 , the annular groove 14 , and the water hole 15 to the water outlet 102 for water outlet, and the water flow out through the water outlet 102 acts as the water outlet. To the sealing gasket 30, the sealing gasket 30 is moved in a direction away from the water outlet 102, so as to realize the water inlet of the water inlet end of the smart toilet cover/apparatus. Of course, in other embodiments, when the outlet 12 is set as a single-sided outlet, the filter element 20 may also be a filter screen covering the plane of the one-way outlet; or the filter element 20 may also be integrally formed by the filter body 10 Formed filter structures, such as integrally formed filter combs or filter grids, etc.

Further, in this embodiment, the filter body 10 is further provided with a dismounting rib 18 extending to the water inlet 101 . Specifically, the dismounting rib 18 is directed toward the water inlet 101 from the inner wall of the other end face of the filter cavity 11 . When extending in the direction, during installation and disassembly, the operator can directly hold the disassembly and assembly rib 18 to operate, which is convenient and fast.

Embodiment 2

The structure of a filter with a one-way valve function provided in this embodiment is substantially the same as that in Embodiment 1. The difference is: referring to FIG. 6 and FIG. 7 , in this embodiment, the annular The groove 14 is provided with a restrictor ring 52 (such as a sealing ring with a smaller size), and the restrictor ring 52 does not completely block the passage between the water inlet 101 and the water outlet 102 , that is, the restrictor ring 52 The opening 151 formed on the groove wall of the annular groove 14 by the water passage hole 15 is not completely blocked. By arranging the current limiting ring 52, the high pressure current limiting can be achieved and the flow rate can be stabilized; even in the case of high water pressure, the water flow from the water outlet can be well controlled, which can be applied to more products.

Although the present invention has been specifically shown and described in conjunction with preferred embodiments, it will be understood by those skilled in the art that changes in form and detail may be made without departing from the spirit and scope of the present invention as defined by the appended claims. Various changes are made to the present utility model, which are all within the protection scope of the present utility model.

Claims (10)

1. The utility model provides a take filter of check valve function, includes filter body, its characterized in that: the filter body is provided with a water inlet and a water outlet which are communicated, a filter element used for filtering water is arranged between the water inlet and the water outlet, the water outlet is also provided with a sealing pad corresponding to the water outlet, and the sealing pad is limited to move back and forth along the direction close to or far away from the water outlet so as to open or block the water outlet and realize the one-way conduction of the water outlet.

2. The filter with check valve function according to claim 1, wherein: the filter body is provided with a first end part, a second end part and a connecting wall arranged between the first end part and the second end part, the filter body seals the water channel through the connecting wall, and the water inlet and the water outlet are respectively arranged on the first end part and the second end part of the filter body.

3. The filter with check valve function according to claim 2, wherein: the filter comprises a filter body and is characterized in that an annular groove is further concavely arranged on the connecting wall of the filter body and is respectively communicated with a water inlet and a water outlet, a flow limiting ring is arranged in the annular groove, and the flow limiting ring incompletely seals a passage between the water inlet and the water outlet.

4. The filter with check valve function according to claim 3, wherein: the groove wall of the annular groove extends into the filter body to form a water passing hole, the water passing hole penetrates through the second end of the filter body to form the water outlet, and the flow limiting ring incompletely seals an opening formed by the water passing hole on the groove wall of the annular groove.

5. The filter with a check valve function according to claim 1 or 2, characterized in that: the filter body is further provided with a guide post, the axial direction of the guide post is parallel to the moving direction of the sealing gasket, and the sealing gasket is movably sleeved on the guide post.

6. The filter with check valve function according to claim 5, wherein: the guide post is also connected with a detachable abutting contact.

7. The filter with check valve function according to claim 1, wherein: the filtering piece is a filtering structure integrally formed by the filter body.

8. The filter with check valve function according to claim 1, wherein: it is the components of a whole that can function independently structure to filter piece and filter body, it sets up on filter body to filter piece can dismantle.

9. The filter with check valve function according to claim 8, wherein: the filter comprises a filter body, a water inlet, a filter element and a water outlet, wherein the filter body is provided with a filter cavity, the water inlet is directly communicated with the filter cavity, the filter cavity is also provided with an outlet communicated with the water outlet, the filter element is a filter screen, and the filter screen is detachably arranged in the filter cavity and is positioned between the outlet of the water inlet and the filter cavity.

10. The filter with check valve function according to claim 1, wherein: the filter body is also provided with a dismounting rib which extends to the water inlet.

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