CN210814167U

CN210814167U - Filter with one-way valve function

Info

Publication number: CN210814167U
Application number: CN201921310050.4U
Authority: CN
Inventors: 龙熙
Original assignee: Xiamen Rongji Precision Technology Co ltd
Current assignee: Xiamen Rongji Precision Technology Co ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-06-23
Anticipated expiration: 2029-08-14

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

Filter with one-way valve function

Technical Field

The utility model relates to a water filtration field, concretely relates to take filter of check valve function.

Background

The intelligent toilet lid/device has very high requirements on water quality, if foreign matters exist in water, the heating pipe or the flowmeter are easy to cause the blocking function failure, so that at present, three-way filtering, braided pipe filtering or filters and the like are added in external water inlet equipment of a product to avoid the functional failure caused by the fact that the foreign matters enter the product. However, the filter screens of the products are arranged externally, the water inlets of the products are designed to be exposed, foreign matters enter product water paths in the installation or transportation process of three-way filtering, woven pipe filtering or filters and the like, and the function of the products is disabled.

At present, some families only add a dustproof cap at the water inlet end of the intelligent toilet cover/device to solve the problem, so that impurities are prevented from entering the transportation process, and sundry scraps cannot be prevented from entering a water path in the installation process. Later, the built-in installation filter of end of intaking replaces structures such as external tee bend filtration, braided tube filtration, filter, dustproof cap, can effectively solve above-mentioned problem. However, the backflow phenomenon also occurs in the waterway of the intelligent toilet cover/device, and the problem needs to be solved.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a take filter of check valve function can the effectual refluence in prevention water route.

In order to achieve the above purpose, the utility model provides a technical scheme is:

the utility model provides a take filter of check valve function, includes filter body, filter body has communicating water inlet and delivery port, be equipped with the filter 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 followed and is close to or keeps away from the direction of delivery port carries out the back and forth movement to open or the shutoff the delivery port realizes the one-way switch-on of delivery port.

Further, the filter body is provided with a first end portion, a second end portion and a connecting wall arranged between the first end portion and the second end portion, the filter body is provided with a water channel sealed through the connecting wall, and the water inlet and the water outlet are respectively formed in the first end portion and the second end portion of the filter body.

Furthermore, an annular groove is further concavely arranged on the connecting wall of the filter body and is respectively communicated with the water inlet and the 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.

Furthermore, 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 part 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.

Further, 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.

Furthermore, a detachable abutting contact is connected to the guide post.

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

Further, 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 to dismantle.

Further, the filter body is provided with a filter cavity, the water inlet is directly communicated with the filter cavity, the filter cavity is further 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 located between the outlet of the water inlet and the filter cavity.

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

Through the utility model provides a technical scheme has following beneficial effect:

arranging a sealing gasket corresponding to the water outlet at the position of the water outlet of the filter, wherein the sealing gasket is limited to move back and forth along the direction close to or far away from the water outlet, water flows into the water outlet of the filter, is filtered by the filtering piece and then flows to the sealing gasket through the water outlet, and the sealing gasket is pushed open by water pressure (even if the sealing gasket moves towards the direction far away from the water outlet) to realize water inlet; when the water channel flows backwards, the backflow water flow acts on the sealing gasket, so that the sealing gasket moves towards the direction close to the water outlet to seal the water outlet, and backflow prevention is achieved. The filter is arranged at the water inlet end of the intelligent toilet seat cover/device, not only has the filtering function, but also has the one-way conduction effect, effectively prevents backflow of a water path, and has simple and practical structure.

Drawings

FIG. 1 is a perspective view of a filter with a check valve function according to a first embodiment;

FIG. 2 is a cross-sectional view of a filter with a check valve function in a one-way water inlet state according to a first embodiment;

FIG. 3 is a cross-sectional view of a filter with a check valve function in a backflow prevention state according to a first embodiment;

FIG. 4 is an exploded view of a filter with a check valve function according to a first embodiment;

FIG. 5 is a schematic structural diagram of a filter body with a check valve function according to a first embodiment;

FIG. 6 is a perspective view of a filter with a check valve function according to a second embodiment;

fig. 7 is a sectional view of a filter with a check valve function according to the second embodiment.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Example one

Referring to fig. 1 to 5, the present embodiment provides a filter with a check valve function, including a filter body 10, where the filter body 10 has a water inlet 101 and a water outlet 102 that are communicated with each other, a filter element 20 for filtering water is disposed between the water inlet 101 and the water outlet 102, the water outlet 102 is further provided with a sealing gasket 30 corresponding to the filter element, and the sealing gasket 30 is limited to move back and forth in a direction approaching to or departing from the water outlet 102 to open or close the water outlet 102, so as to implement one-way communication of the water outlet 102.

The water flows in from the inlet 101 of the filter, is filtered by the filter element 20, and then flows through the outlet 102 to the sealing gasket 30, and the sealing gasket 30 is pushed open by the water pressure (i.e. the sealing gasket 30 moves away from the outlet 102), so that the water is fed, as shown in fig. 2. When the water channel has backflow, the backflow water flow acts on the sealing gasket 30, so that the sealing gasket 30 moves towards the direction close to the water outlet 102 to seal the water outlet 102, and backflow prevention is realized, as shown in fig. 3. The filter is arranged at the water inlet end of the intelligent toilet seat cover/device, not only has the filtering function, but also has the one-way conduction effect, effectively prevents backflow of a water path, and has simple and practical structure. Of course, in other embodiments, the filter with the check valve function may also be used in other waterways, such as drinking water waterways, etc., and will not be described in detail herein.

Further, in the present embodiment, the filter body 10 has a first end (a lower end in fig. 2), a second end (an upper end in fig. 2), and a connecting wall 103 disposed between the first end and the second end, the filter body 10 seals a water path by the connecting wall 103, and the water inlet 101 and the water outlet 102 are opened on the first end and the second end of the filter body 10, respectively. Can be directly plugged in a waterway pipeline, and is simple and convenient to operate. Still further, an annular sealing groove 16 is further recessed on the connecting wall 103 of the filter body 10, a sealing ring 51 is arranged in the annular sealing groove 16, the connecting wall 103 of the filter body 10 is completely sealed with the inner wall of the water pipeline through the sealing ring 51, and the sealing performance is better. Of course, in other embodiments, the filter body 10 may also adopt other structures, such as the water inlet 101 and the water outlet 102 are disposed on the same side or adjacent sides.

Further, in this embodiment, the filter body 10 is further provided with a guide post 17, an axial direction of the guide post 17 is parallel to a moving direction of the sealing gasket 30, the sealing gasket 30 is movably sleeved on the guide post 17, and the sealing gasket 30 moves more stably under the guidance of the guide post 17. Of course, in other embodiments, the guide posts 17 may be replaced by guide grooves having a similar guiding function, or other structures capable of restricting the movement of the gasket 30 in the above-described manner.

Further, in this embodiment, the guide post 17 is further connected with a detachable abutting head 40, and the abutting head 40 can abut against the sealing gasket 30, so as to limit the moving distance of the sealing gasket 30 and prevent the sealing gasket 30 from dislocating; and the contact head 40 is detachably arranged, so that the sealing gasket 30 is convenient to assemble and disassemble. Specifically, in this embodiment, a slot 41 is disposed on the abutting contact 40, and the guiding column 17 is detachably and fixedly inserted into the slot 41 of the abutting contact 40. Of course, in other embodiments, the detachable arrangement of the guiding column 17 and the abutting head 40 may be implemented by other structures such as screw threads.

Further, in this embodiment, an annular groove 14 is further concavely disposed on the connecting wall 103 of the filter body 10, and the annular groove 14 is respectively communicated with the water inlet 101 and the water outlet 102. Specifically, the wall of the annular groove 14 extends into the filter body 10 to form a water through hole 15, and the water through hole 15 penetrates through the second end of the filter body 10 to form the water outlet 102, but in other embodiments, a water through groove may be formed by recessing on the connecting wall of the filter body 10, and the water through groove is surrounded by the inner wall of the external water pipe to realize the circulation of the filter water path, and so on.

Further, in this embodiment, two water outlet holes 15 and two water outlet holes 102 are formed at the second end of the filter body 10, so as to satisfy the water output; the guide post 17 extends outwards from the center of the second end of the filter body 10, and the two water outlets 102 are symmetrically arranged in the circumferential direction with the guide post 17 as the center, so that the water pressure acting on the sealing gasket by the water flows from the two water outlets 102 is symmetrical, and the translation of the sealing gasket 30 is realized. Of course, in other embodiments, the number of the water through holes 15 and/or the water outlets 102 may be one or more according to actual requirements, and when the number of the water outlets 102 is more than one, it is preferable that the water through holes 15 and/or the water outlets 102 are symmetrically arranged in the circumferential direction with the guide post 17 as the center, which is not limited to this.

Further, in this embodiment, the filter element 20 and the filter body 10 are in a split structure, and the filter element 20 is detachably disposed on the filter body 10, so that the filter element 20 is conveniently detached and washed.

Further, in this embodiment, a filter cavity 11 has been seted up on the filter body 10, the water inlet 101 directly link up to filter cavity 11, filter cavity 11 has still been seted up the export 12 that communicates delivery port 102, filter 20 is the filter screen, filter screen 20 can dismantle and set up in filter cavity 11 to be located between the export 12 of water inlet 101 and filter cavity 11. Specifically, the filter cavity 11 is a cylindrical cavity, the water inlet 101 is located on one end face of the filter cavity 11, the outlet 12 of the filter cavity 11 is arranged on the connecting wall 103 of the filter body 10, the outlet 12 is formed on the periphery of the filter cavity 11, the filter element is specifically an annular filter screen, and the annular filter screen is attached to the peripheral side face of the filter cavity to realize filtering; the connecting wall 103 between said outlet 12 and the annular groove 14 is recessed inwards to form a flow-through gap 13. The water flowing in through the water inlet 101 sequentially passes through the filter cavity 11, the annular filter screen 20, the outlet 12, the circulation gap 13, the annular groove 14, the water passing hole 15 and the water outlet 102 to go out, the water flowing out through the water outlet 102 acts on the sealing gasket 30, the sealing gasket 30 moves towards the direction far away from the water outlet 102, and the water inlet of the water inlet end of the intelligent toilet cover/device is realized. Of course, in other embodiments, when the outlet 12 is configured as a single-sided outlet, the filter element 20 may be a planar filter screen covering the single-sided outlet; alternatively, the filter element 20 may be a filter structure integrally formed with the filter body 10, such as an integrally formed filter comb or filter grid.

Further, in this embodiment, the filter body 10 is further provided with the dismounting ribs 18 extending to the water inlet 101, specifically, the dismounting ribs 18 extend from the inner wall of the other end surface of the filter cavity 11 toward the water inlet 101, and when the filter body is mounted and dismounted, an operator can directly hold the dismounting ribs 18 by hands to operate, so that the filter body is convenient and fast.

Example two

The structure of the filter with the function of the one-way valve provided by the present embodiment is substantially the same as that of the first embodiment, except that: referring to fig. 6 and 7, in the present embodiment, a flow-limiting ring 52 (e.g., a sealing ring with a smaller size) is disposed in the annular groove 14, and the flow-limiting ring 52 does not completely block the passage between the water inlet 101 and the water outlet 102, i.e., the flow-limiting ring 52 does not completely block the opening 151 formed on the wall of the annular groove 14 by the water hole 15. The flow limiting ring 52 is arranged, so that the effects of high-pressure flow limitation and flow stabilization can be achieved; even under the condition of high water pressure, the water flow quantity flowing out of the water outlet can be well controlled, and more products can be applied.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

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.