TWI542761B - Filter - Google Patents

Description

filter

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a filter device, and more particularly to a filter device suitable for use in various types of water drops, having an excellent filtering effect and taking into account drainage flow.

A commonly used drop head structure includes a body mounted on an indoor floor, and a drain cover disposed at an opening of the seat body, the drain cover having a plurality of drop-shaped through holes for a water supply flow, and hair is inevitably present due to the flow of water With foreign matter such as dust and the consideration of drainage smoothness, most of the above-mentioned through holes have a large size design, so that the foreign matter cannot be effectively filtered out, and the water pipe is prone to blockage when used for a long time, or cause The disgusting odor even becomes a place for bacteria and pests to endanger the health of users, seriously affecting the cleanliness and hygiene of the home environment.

Although some manufacturers try to develop various filtering devices to install on the falling head, most of them are simple in design, and the filtering effect is often poor. In order to strengthen the filtering effect, the structure may become too complicated to be disassembled and cleaned, and the drainage will be sacrificed. The smoothness is the problem and lack of solutions that have yet to be resolved.

In view of this, the main object of the present invention is to provide a filtering device capable of providing a better filtering effect.

A second object of the present invention is to provide a filtering device having a sufficient drainage function.

In order to achieve the above and other objects, the present invention provides a filter device disposed between a drain cover and a body, the drain cover is embedded in the base body, and a top water inlet channel is defined in the top surface of the drain cover. The filter device comprises: a slow flow unit having a positioning plate and a slow flow seat, wherein the positioning plate is mounted in the seat body and is provided with an opening; and the slow flow seat is connected to the positioning plate and located in the second water inlet Below the channel, and The slow flow seat has at least one drainage channel; and a second filter unit is disposed between the second water inlet channel and the slow flow seat, and a bottom end thereof extends into the interior of the slow flow seat.

Thereby, the present invention utilizes a slow flow unit to reduce the flow rate of the water flow to enhance the effect of the second filter unit, and to balance the drainage smoothness.

Preferably, a first water inlet channel is formed between the outer edge of the drain cover and the base body, and the filtering device further includes a first filter unit disposed in the first water inlet channel and the opening of the positioning plate. between. Therefore, the present invention constitutes the first and second water inlet channels for designing the three-dimensional split flow, respectively, using the first and second filter units for filtering, and using the slow flow seat to locally reduce the flow rate of the water flow to enhance the filtering function, thereby achieving Excellent filtration results.

At the same time, the present invention adopts a three-dimensional design to increase the cross-sectional area of the drainage. According to the experimental results, the present invention can reduce the flow rate while using the slow-flow seat to reduce the flow rate, and the filtration function for the long hair is almost 100%, which can be effective. Prevent water pipes from clogging and falling of foreign objects or expensive items.

In short, the innovative design of the present invention consists in concentrating and filtering the water flow from the drain cover, and then dispersing the drainage by structural guidance, thereby maintaining an effective filtering function without reducing the overall displacement, which is different from Low filtration and low drainage of general flat filtration products.

Preferably, the top edge of the drain cover of the present invention is higher than the top edge of the base body, so that a lower water flow preferentially flows into the first water inlet passage.

Preferably, the first filter unit comprises a plurality of slits distributed on the flange of the drain cover and/or the convex portion of the positioning plate, and the protrusions are preferably arranged in a spiral shape.

Preferably, the second filter unit is a mesh structure or a spiral structure.

Preferably, the slow flow seat is located below the opening of the positioning plate, and extends upward to form a plurality of spaced apart connecting portions for connecting the positioning plate, and the at least one drainage channel is disposed between the adjacent connecting portions. Alternatively, the slow flow seat can be disposed relatively movable below the opening of the positioning plate and can be opened or closed by the elastic member.

Preferably, the bottom side of the slow flow seat is provided with at least one water outlet hole, and the bottom of the slow flow seat extends outward and is bent upward to form an annular groove to shield the water outlet hole.

The invention has the advantages of using natural law and simple structure, that is, a three-dimensional design of the slow flow seat, thereby achieving better filtering function and taking into account drainage smoothness.

10‧‧‧Drain cover

11‧‧‧First water inlet channel

12‧‧‧Second water inlet channel

13‧‧‧Flange

14‧‧‧ First Joint Department

20‧‧‧ body

30‧‧‧Filter device

40‧‧‧ Positioning board

41‧‧‧Opening

42‧‧‧ convex

43‧‧‧Second junction

50‧‧‧First filter unit

60‧‧‧Relief seat

60A‧‧‧ wall

60B‧‧‧floor

61‧‧‧Connecting Department

62‧‧‧Drainage channel

63‧‧‧Water outlet

64‧‧‧Circle

70‧‧‧Second filter unit

Figure 1 is an exploded perspective view of a preferred embodiment of the present invention.

Figure 2 is a top plan view of a preferred embodiment of the present invention.

Fig. 3 is a cross-sectional view taken along line 3-3 of Fig. 2;

Referring to the first to third embodiments, a filter device 30 is provided between a drain cover 10 and a body 20. The diameter of the drain cover 10 is slightly smaller than the opening of the base 20. Therefore, when the drain cover 10 is embedded in the base body 20, a first water inlet passage 11 is formed on the outer edge of the drain cover 10. The top edge of the drain cover 10 is higher than the top edge of the base body 20, Moreover, a perforation is formed in the center of the top surface as a second water inlet passage 12. The filter device 30 of the present invention comprises a positioning plate 40, a first filter unit 50, a slow flow seat 60 and a second filter unit 70, wherein the positioning plate 40 and the slow flow seat 60 together form a slow flow. The specific structure of each component of the present invention is as follows: The positioning plate 40 is mounted in the base 20 and has an opening 41 having an area larger than the cross-sectional area of the second water inlet passage 12, the positioning plate The top surface of the 40 is convexly provided with a plurality of convex portions 42 which can be staggered. In the present embodiment, the convex portions 42 are arranged in a spiral shape to guide the water flow. Of course, those skilled in the art can also refer to the situation. The convex portion 42 is changed to a single annular convex portion or other staggered arrangement. In addition, the drain cover 10 has a flange 13 protruding toward the positioning plate 40, and at least one first joint portion 14 is formed at a proper position of the flange 13. The top surface of the positioning plate 40 is correspondingly provided with at least A second joint portion 43 is connected to fix the first joint portion 14 to enable the drain cover 10 and the positioning plate 40 to be firmly coupled. The first bonding portion 14 and the second bonding portion 43 are respectively complementary bumps and grooves in the embodiment, and are arranged in three equal intervals.

The first filter unit 50 is formed by a plurality of slits, and is formed on the flange 13 of the drain cover 10 and the convex portion 43 of the positioning plate 40, and thus is located at the first water inlet passage 11 and the positioning plate 40. Between the openings 41, foreign matter in the water flow from the first water inlet passage 11 can be filtered.

The slewing block 60 is formed by an annular wall 60A and a bottom plate 60B, and a top edge of the annular wall 60A extends upward to form a plurality of connecting portions 61 for connecting to the periphery of the opening 41 of the positioning plate 40. The slow flow seat 60 is located below the second water inlet passage 12 and the opening 41, and the connecting portion 61 is spaced apart to form at least one drainage channel 62 between the adjacent two connecting portions 61, so the slow flow The seat 60 is capable of slowing the vertical flow velocity from the second inlet passage and is subsequently discharged by the aforementioned drain passage 62. In addition, a water outlet hole 63 is formed on the bottom side of the wall 60A of the slow flow seat 60 for removing moisture remaining in the slow flow seat 60, and the bottom plate 60B of the slow flow seat 60 is outwardly extended and bent upward to form a ring. The groove 64 shields the water outlet hole 63, and a water seal can be appropriately formed at the bottom of the slow flow seat 60. It is worth mentioning that the structure of the above-mentioned slow flow seat is an example of an embodiment, and the slow flow seat can be changed to an open curved plate, and the positioning plate is also connected by a plurality of connecting portions, and the buffering vertical water flow can also be achieved. The efficiency of the flow rate, and the aforementioned curved plate can also be opened with a water outlet. In addition, the position of the slow flow seat can also be adjusted upward from the lower side of the positioning plate, and the slow flow seat can be raised to make the bottom plate flush with the positioning plate.

In this embodiment, the second filter unit 70 is a mesh structure formed by arranging metal strips, and can be penetrated from the top surface of the drain cover 10, and the top edge thereof can abut against the top surface of the drain cover 10, so that the second filter unit 70 can be placed against the top surface of the drain cover 10. The second filter unit 70 is disposed between the second water inlet passage 12 and the slow flow seat 60, and the bottom end of the second filter unit 70 extends downwardly into the interior of the slow flow seat 60, and can be filtered from the first Foreign matter in the water flow of the second inlet channel 12. Of course, those skilled in the art can change the mesh structure in this embodiment to a spiral structure like a spring element or other structure having a filtering effect as needed.

With the foregoing structure, in the case of a low water flow rate, the water flow will mainly flow through the first water inlet passage 11 through the first filter unit 50 while being affected by the flange 13 and the convex portion 42. The horizontal flow rate of the water flow is lowered, so that the filtration effect of the first filter unit 50 can be improved.

In the case of high water flow, in addition to flowing through the first water inlet passage 11, the water flow will inevitably flow into the second water inlet passage 12 and pass through the second filter unit 70 while being subjected to the slow flow seat 60. The effect is to reduce the vertical flow rate of the water flow, thereby increasing the filtering effect of the second filter unit 50.

According to the applicant's experimental results, the shorter hair will sink into the water stream and mainly flow through the first water inlet passage 11, and the longer hair tends to float on the water surface and mainly flows through the second water inlet passage. 12. Since the present invention is provided with the first and second filter units for the foregoing two cases, and has a horizontal and vertical slow flow structure, the filtering effect can be improved by nearly 100%.

In addition to the foregoing embodiments, the slow flow seat of the present invention can also be changed to a structural design that can be moved relative to the positioning plate, that is, using an elastic member, such as a tension spring, so that the slow flow seat can be Adjacent or away from the positioning plate, the drainage channel can be opened or closed. In this way, the present invention can also utilize the closed state of the drainage channel, that is, the slow flow seat abuts against the positioning plate, thereby achieving the effect of preventing pests or odors from entering the room. The elastic member may be coupled between the slow flow seat and the positioning plate, or the elastic member may be connected to the slow flow seat only at one end thereof, and the other end may be connected to the seat body through an opening of the positioning plate. Or the proper location of the drain cover.

Finally, it should be noted that the constituent elements disclosed in the foregoing embodiments are merely illustrative and are not intended to limit the scope of the present invention. Alternatives or variations of other equivalent elements should also be applied for in this case. Covered by the scope.

10‧‧‧Drain cover

12‧‧‧Second water inlet channel

13‧‧‧Flange

14‧‧‧ First Joint Department

20‧‧‧ body

30‧‧‧Filter device

40‧‧‧ Positioning board

41‧‧‧Opening

42‧‧‧ convex

43‧‧‧Second junction

50‧‧‧The first filter unit

60‧‧‧Relief seat

63‧‧‧Water outlet

64‧‧‧Circle

70‧‧‧Second filter unit

Claims (19)

A filter device is disposed between a drain cover and a body, the drain cover is embedded in the seat body, and a top water inlet channel is defined in the top surface of the drain cover, the filter device comprises: a slow flow unit, having a positioning plate and a slow flow seat, the positioning plate is mounted in the seat body and is provided with an opening, and the slow flow seat is connected to the positioning plate and located under the second water inlet channel, and the slow flow seat has at least a drainage channel; and a second filter unit disposed between the second water inlet channel and the slow flow seat, and a bottom end thereof extends into the interior of the slow flow seat; wherein the slow flow seat extends upward to form a phase A plurality of connecting portions are spaced apart to connect the positioning plate, and the at least one drainage channel is disposed between the adjacent two connecting portions. The filter device of claim 1, wherein a first water inlet channel is formed between the outer edge of the drain cover and the base body, and the filter device further includes a first filter unit disposed on the first water inlet. Between the channel and the opening of the positioning plate. The filter device of claim 2, wherein a top edge of the drain cover is higher than a top edge of the base. The filter device of claim 2 or 3, wherein a flange is protruded from the drain cover toward the positioning plate, and the first filter unit includes a plurality of slits disposed on the flange. The filter device of claim 2 or 3, wherein the top surface of the positioning plate is convexly provided with at least one convex portion, and the first filtering unit comprises a plurality of slits formed in the convex portion. The filtering device according to claim 5, wherein the number of the at least one convex portion is a plurality and is staggered. The filter device of claim 1, wherein the drain cover is formed with at least one first joint portion toward the positioning plate, and the top surface of the positioning plate is correspondingly provided with at least one second joint portion for connecting and fixing the first combination. The filter device of claim 7, wherein the first joint portion is a bump, and the second joint portion is a recess to receive the bump. The filter device of claim 1, wherein the second filter unit is a mesh structure. The filter device of claim 1, wherein the second filter unit is a spiral structure. The filter device of claim 1, wherein the slow flow seat is located at the opening of the positioning plate Below the hole. The filter device of claim 11, wherein the slow flow seat is movably disposed below the opening of the positioning plate. The filter device of claim 12, wherein the slow flow seat is coupled to an elastic member and is capable of opening or closing the drain passage by the action of the elastic member. The filter device of claim 13, wherein the elastic member is mounted and coupled between the slow flow seat and the positioning plate. The filter device of claim 14, wherein the elastic member is connected to the slow flow seat at one end, and the other end is connected to the seat body or the drain cover through an opening of the positioning plate. The filter device of claim 1, wherein the bottom side of the slow flow seat is provided with at least one water outlet. The filter device of claim 16, wherein the bottom of the slow flow seat extends outwardly and is bent upward to form an annular groove to shield the water outlet. The filter device of claim 1, wherein the area of the opening of the positioning plate is larger than the cross-sectional area of the second water inlet channel of the drainage cover. The filter device of claim 1, wherein the slow flow seat is an open curved plate.