CN220768341U - Floor drain - Google Patents

Abstract

The utility model discloses a floor drain, which comprises a floor drain inner core and an inner filter screen, wherein a transverse drainage gap is arranged between the lower surface of the inner filter screen and the upper end surface of the floor drain inner core; and a limiting structure for supporting the inner filter screen to form a transverse drainage gap is arranged between the inner filter screen and the floor drain inner core, and the limiting structure is formed on the inner filter screen and/or the floor drain inner core. Compared with the prior art, the utility model ensures the existence of the transverse drainage gap by arranging the transverse drainage gap between the lower surface of the inner filter screen and the upper end surface of the floor drain inner core and by the limit structure realized by direct contact between the inner filter screen and the floor drain inner core, thus realizing that the filter holes on the outer ring of the inner filter screen can realize smooth drainage.

Description

Floor drain

Technical Field

The utility model relates to the field of bathroom, in particular to a floor drain.

Background

The floor drain is a drainage appliance with the ground connected with a drainage pipeline system. As shown in fig. 1, a floor drain inner core 1 is disposed in a floor drain outer shell 100, an inner filter screen 2 is disposed on the floor drain inner core 1, a portion of the inner filter screen 2 corresponding to a drainage through hole 120 of the floor drain inner core 100 is an inner ring 201 of the inner filter screen, and a portion of the inner filter screen 2 outside the inner ring 201 with a filter hole is an outer ring 202 of the inner filter screen; however, when the inner filter screen 2 is placed on the floor drain inner core 1, the outer ring 202 of the inner filter screen 2 is directly attached to the upper end surface of the floor drain inner core 1; the filtering holes of the outer ring of the inner filter screen 2 are 'rare and solid', and the filtering effect is not exerted. Thus, sundries are gathered in the middle of the inner filter screen 2 along with water flow, and the water passing capability is reduced along with accumulation of the sundries, so that the drainage effect is affected. The inner screen 2 may be moved laterally without being centered, thereby affecting the filtering action of the inner screen 2.

In view of the above, the present inventors have made intensive studies to solve the above-mentioned drawbacks of the prior art.

Disclosure of Invention

The utility model mainly aims to provide a floor drain, which solves the problem that the water passing effect between an inner filter screen and an inner core of the floor drain is poor in the background art.

In order to achieve the above object, the solution of the present utility model is:

the floor drain comprises a floor drain inner core and an inner filter screen, wherein a transverse drainage gap is arranged between the lower surface of the inner filter screen and the upper end surface of the floor drain inner core; and a limiting structure for supporting the inner filter screen to form a transverse drainage gap is arranged between the inner filter screen and the floor drain inner core, and the limiting structure is formed on the inner filter screen and/or the floor drain inner core.

Further, the width of the transverse drainage gap is 1-3mm.

Further, the width of the lateral drainage gap is 1.5mm.

Further, the limit structure comprises a plurality of first limit protruding blocks formed on the upper end face of the floor drain inner core, and the lower surface of the inner filter screen is lapped on the first limit protruding blocks.

Further, the limit structure comprises a plurality of second limit lugs formed on the lower surface of the inner filter screen, and the second limit lugs are abutted to the upper end face of the floor drain inner core.

Further, a central rod is formed in the middle of the inner filter screen, a central seat is formed in the inner core of the floor drain inner core, a plug hole is formed in the center of the central seat, the central seat is connected with the inner wall of the floor drain inner core through a water passing rib, and the central rod is plugged in the plug hole.

Further, the limiting structure comprises a third limiting lug formed on the side part of the center rod, and the third limiting lug can be lapped on the center seat from top to bottom.

Further, the center of the inner filter screen is provided with an upward convex filtering part; the peripheral edge of the inner filter screen is provided with a rubber ring.

Further, the center of the inner filter screen is provided with a handle part.

Furthermore, the lower part of the floor drain inner core is connected with a deodorizing structure.

By adopting the structure, the utility model relates to the floor drain which at least comprises the following components

The beneficial effects are that:

1. the limiting structure supports the inner filter screen, so that a transverse drainage gap is formed between the inner filter screen and the upper end surface of the floor drain inner core; the water flow entering the floor drain can smoothly flow downwards from the filtering holes of the outer ring of the inner filtering net, horizontally and transversely passes through the upper end surface of the inner core of the floor drain, and then flows away from the inner cavity of the inner core of the floor drain. When water flow with larger flow is discharged, the inner ring and the outer ring of the inner filter screen can both drain water; the arrangement of the transverse drainage gap ensures that the outer ring of the inner filter screen can fully play a drainage role, so that the water passing area of the inner filter screen is fully utilized.

2. The limiting structure directly acts between the inner filter screen and the inner floor drain core and is less influenced by the shape of the outer floor drain shell, so that the inner floor drain core and the inner filter screen can be matched with most of the existing outer floor drain shells on the market, and replacement and upgrading of old floor drains under the condition of retaining the outer floor drain shells are realized. The limiting structure enables the inner filter screen to be pressed with the floor drain inner core and still has the design width of the transverse drainage gap at least, for example, the design width of the transverse drainage gap is 1.5mm, and the water passing effect is guaranteed.

3. The center rod is matched with the inserting holes on the center seat, so that the transverse limit of the inner filter screen is realized.

4. The limiting structure can be formed between the inner filter screen and the upper end surface of the floor drain inner core, for example, through a first limiting lug and/or a second limiting lug. The floor drain can be realized by arranging a third limit bump on the central rod, and after the central rod is inserted into the lowest position in the insertion hole, the third limit bump is abutted with the central seat, so that a transverse drainage gap is formed between the lower surface of the inner filter screen and the upper end surface of the floor drain inner core.

5. When the dirt enters the convex filtering part on the inner filter screen, the dirt is firstly intercepted on the upper surface of the outer ring of the inner filter screen, and even if the dirt is filled on the upper surface of the outer ring of the inner filter screen, the accumulated water can be discharged from the convex filtering part after rising, so that the risk of complete blockage of the inner filter screen is reduced.

Sixth, the handle part at the upper part of the inner filter screen is convenient for lifting the inner filter screen. The deodorization structure at the lower part of the floor drain inner core can be a magnetic deodorization flip cover and the like.

Compared with the prior art, the utility model ensures the existence of the transverse drainage gap by arranging the transverse drainage gap between the lower surface of the inner filter screen and the upper end surface of the floor drain inner core and by the limit structure realized by direct contact between the inner filter screen and the floor drain inner core, thus realizing that the filter holes on the outer ring of the inner filter screen can realize smooth drainage.

Drawings

Fig. 1 is a schematic cross-sectional structure of a conventional floor drain.

Fig. 2 is a schematic perspective view of a first embodiment of the present utility model.

Fig. 3 is a schematic cross-sectional view of a first embodiment of the present utility model.

Fig. 4 is an enlarged schematic view of the structure at a in fig. 3.

Fig. 5 is a schematic cross-sectional view of the filter screen in the first embodiment.

Fig. 6 is an enlarged schematic view of the structure at B in fig. 5.

Fig. 7 is a schematic cross-sectional exploded view of a first embodiment of the present utility model.

Fig. 8 is a schematic perspective exploded view of a first embodiment of the present utility model.

Fig. 9 is a schematic perspective view of another angle of the first embodiment of the present utility model.

Fig. 10 is a schematic perspective view of a second embodiment of the present utility model.

Fig. 11 is a schematic cross-sectional structure of a second embodiment of the present utility model.

Fig. 12 is a schematic perspective view of a third embodiment of the present utility model.

Fig. 13 is a schematic cross-sectional view of a third embodiment of the present utility model.

Fig. 14 is a schematic cross-sectional view of a fourth embodiment of the present utility model.

Fig. 15 is a schematic perspective view of an inner filter according to a fourth embodiment of the present utility model.

Fig. 16 is a schematic cross-sectional structure of a fifth embodiment of the present utility model.

Fig. 17 is a schematic perspective view of an inner filter according to a fifth embodiment of the present utility model.

Fig. 18 is a schematic cross-sectional view of the filter screen in the fifth embodiment.

In the figure:

a floor drain inner core 1; an upper end surface 10; a first limit bump 11; a center base 12; a plug hole 121; water passing ribs 122; an inner filter screen 2; an inner ring 201; an outer race 202; a central rod 21; a third limit bump 211; a male filter portion 22; a recess 221; a post 222; a glue ring 23; a lifting button 24; a second limit bump 25; a lateral drainage gap 3; a magnetic deodorization flip cover 4; a floor drain housing 100; an outer filter screen 110; a drain through hole 120.

Detailed Description

In order to further explain the technical scheme of the utility model, the utility model is explained in detail by specific examples.

As shown in fig. 2 to 9, a first embodiment of a floor drain according to the present utility model includes a floor drain inner core 1 and an inner filter 2, wherein a lateral drainage gap 3 is formed between the lower surface of the inner filter 2 and the upper end surface 10 of the floor drain inner core 1; a limiting structure for supporting the inner filter screen 2 to form a transverse drainage gap 3 is arranged between the inner filter screen 2 and the floor drain inner core 1, and the limiting structure is formed on the inner filter screen 2 and/or the floor drain inner core 1.

In this way, the floor drain according to the present utility model, the limiting structure supports the inner filter screen 2, so that a transverse drainage gap 3 is formed between the inner filter screen 2 and the upper end surface 10 of the floor drain inner core 1; the water flow entering the floor drain can smoothly flow downwards from the filtering holes of the outer ring 202 of the inner filtering net 2, horizontally and transversely passes through the upper end surface 10 of the floor drain inner core 1, and then flows away from the inner cavity of the floor drain inner core 1. When discharging water flow with larger flow, the inner ring 201 and the outer ring 202 of the inner filter screen 2 can drain water; the arrangement of the transverse drainage gap 3 ensures that the outer ring 202 of the inner filter screen 2 can fully play a drainage role, so that the water passing area of the inner filter screen 2 is fully utilized.

The limiting structure directly acts between the inner filter screen 2 and the inner floor drain core 1, and is less influenced by the shape of the outer floor drain shell 100, so that the inner floor drain core 1 and the inner filter screen 2 can be matched with most of the existing outer floor drain shells 100 on the market, and replacement and upgrading of old floor drains under the condition of retaining the outer floor drain shells 100 are realized. The limiting structure enables the inner filter screen 2 and the floor drain inner core 1 to be pressed and still at least have the design width of the transverse drainage gap 3, and the width of the transverse drainage gap 3 is 1-3mm. Preferably, the design width L of the transverse drainage gap 3 is 1.5mm, so that the water passing effect is ensured.

Preferably, as shown in fig. 3 and 4, the limiting structure comprises a plurality of first limiting projections 11 formed on the upper end surface 10 of the floor drain inner core 1, and the lower surface of the inner filter screen 2 is lapped on the first limiting projections 11. When the upper end of the first limit bump 11 is directly contacted with the lower surface of the inner filter screen 2, the height of the first limit bump 11 is the width of the transverse drainage gap 3. Preferably, the number of the first limit protrusions 11 is three. Fig. 5 and 6 show the installation process of the inner filter 2 in the floor drain casing 100, and as the inner filter 2 moves down, the first limiting bump 11 will make abutting contact with the lower surface of the inner filter 2, so as to limit the continuous downward movement of the inner filter 2.

Preferably, as shown in fig. 2-18, a central rod 21 is formed in the middle of the inner filter screen 2, a central seat 12 is formed in the inner core of the floor drain inner core 1, a plug hole 121 is formed in the center of the central seat 12, the central seat 12 is connected with the inner wall of the floor drain inner core 1 through a water passing rib 122, and the central rod 21 is plugged in the plug hole 121. Preferably, the number of the water passing ribs 122 is three; the central rod 21 is matched with the inserting hole 121 on the central seat 12, so that the transverse limit of the inner filter screen 2 is realized. The central rod is in frictional connection with the plug hole, the central rod 21 can slide in the plug hole 121 under the action of an artificial external force, and the central rod 21 is relatively static with the plug hole 121 in the plug hole 121 after the artificial external force is released, so that the stability of the central rod is improved.

Preferably, as shown in fig. 2-11, the center of the inner filter screen 2 is provided with an upward convex filtering part 22; preferably, the convex filtering part 22 is cone-shaped; the peripheral edge of the inner filter screen 2 is provided with a rubber ring 23. When the dirt enters the convex filtering part 22 on the inner filter screen 2, the dirt is firstly intercepted on the upper surface of the outer ring of the inner filter screen 2, and even if the upper surface of the outer ring of the inner filter screen 2 is filled with the dirt, the accumulated water can be discharged from the convex filtering part 22 after rising, so that the risk of complete blockage of the inner filter screen 2 is reduced. The rubber ring 23 is connected with the inner wall or the bottom wall of the floor drain shell 100, sewage is reduced from directly bypassing the periphery of the inner filter screen 2 and entering below the inner filter screen 2 without filtering, as shown in fig. 5 and 6, the rubber ring 23 can deform and adapt to the diameter change of the inner wall of the floor drain within a certain range, and the installation effect is ensured.

The center of the inner filter screen 2 is provided with a handle part. Preferably, the lower part of the floor drain inner core 1 is connected with a deodorizing structure. The handle part at the upper part of the inner filter screen 2 is convenient for lifting the inner filter screen 2. The deodorization structure at the lower part of the floor drain inner core 1 can be a magnetic deodorization flip cover 4 and the like. As shown in fig. 2 to 10, the handle portion is a handle 24 formed on the inner screen 2.

As a second embodiment of the present utility model, as shown in fig. 10 to 11, the convex filtering portion 22 is formed in a truncated cone shape. The handle portion includes a recess 221 formed at the center of the boss, and a boss 222 is formed at the center of the recess 221. The rest of the structure and technical effects are the same as those of the first embodiment

As a third embodiment of the present utility model, as shown in fig. 12 and 13, it is different from the first embodiment in that the upper part of the inner screen does not have the convex filtering part 22, and the remaining structure and technical effects are the same as those of the first embodiment.

As a fourth embodiment of the present utility model, as shown in fig. 14 to 15, the limiting structure includes a plurality of second limiting protrusions 25 formed on the lower surface of the inner filter 2, and the second limiting protrusions 25 abut against the upper end surface 10 of the floor drain inner core 1. When the lower end of the second limiting bump 25 is directly contacted with the upper end surface 10 of the floor drain inner core 1, the height of the second limiting bump 25 is the width of the transverse drainage gap 3, for example, the width of the transverse drainage gap 3 is 1.5mm. Preferably, the number of the second limit protrusions 25 is three. The remaining structure and technical effects are the same as those of the third embodiment.

As a fourth embodiment of the present utility model, fig. 16 to 18 show. The limiting structure comprises a third limiting lug 211 formed on the side part of the central rod 21, and the third limiting lug 211 can be lapped on the central seat 12 from top to bottom. After the central rod 21 is inserted into the lowest position in the insertion hole 121, the third limiting protrusion 211 abuts against the upper end of the central seat 12, so that a transverse drainage gap 3 is formed between the lower surface of the inner filter screen and the upper end surface 10 of the floor drain inner core 1. For example, the width L of the lateral drain gap 3 is 1.5mm. In this embodiment, the first limit bump 11 and the second limit bump 25 are not disposed between the lateral drainage gaps 3, so as to reduce occupation of the lateral drainage gaps 3, and make water flow smoother.

Preferably, the upper opening of the floor drain housing 100 can also be provided with an outer filter screen 110, thus achieving a double filtration of the outer filter screen 110 and the inner filter screen 2. Only the inner filter screen 2 may be provided, and the outer filter screen 110 may not be provided.

Compared with the prior art, the utility model ensures the existence of the transverse drainage gap 3 by arranging the transverse drainage gap 3 between the lower surface of the inner filter screen 2 and the upper end surface 10 of the floor drain inner core 1 and by a limiting structure realized by direct contact between the inner filter screen 2 and the floor drain inner core 1, thus realizing that the smooth drainage of the filter holes on the outer ring of the inner filter screen 2 can be realized.

The above examples and drawings are not intended to limit the form or form of the present utility model, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present utility model.

Claims (10)

1. The floor drain is characterized by comprising a floor drain inner core and an inner filter screen, wherein a transverse drainage gap is arranged between the lower surface of the inner filter screen and the upper end surface of the floor drain inner core; and a limiting structure for supporting the inner filter screen to form a transverse drainage gap is arranged between the inner filter screen and the floor drain inner core, and the limiting structure is formed on the inner filter screen and/or the floor drain inner core.

2. Floor drain according to claim 1, wherein the width of the lateral drainage gap is 1-3mm.

3. Floor drain according to claim 1, wherein the width of the lateral drainage gap is 1.5mm.

4. The floor drain of claim 1, wherein the limiting structure comprises a plurality of first limiting projections formed on the upper end surface of the floor drain core, and the lower surface of the inner filter screen is lapped on the first limiting projections.

5. A floor drain as claimed in claim 1, wherein the limiting structure comprises a plurality of second limiting projections formed on the lower surface of the inner filter screen, and the second limiting projections are abutted against the upper end surface of the floor drain inner core.

6. Floor drain according to any of the claims 1-5, wherein a central rod is formed in the middle of the inner filter screen, a central seat is formed in the inner core of the inner floor drain core, a plug hole is formed in the center of the central seat, the central seat is connected with the inner wall of the inner floor drain core through a water passing rib, and the central rod is plugged in the plug hole.

7. Floor drain according to claim 6, wherein the limit structure comprises a third limit bump formed on the side of the central rod, which third limit bump can overlap the central seat from top to bottom.

8. Floor drain according to claim 1, wherein the inner screen centre has an upwardly convex filtering portion; the peripheral edge of the inner filter screen is provided with a rubber ring.

9. Floor drain according to claim 1, wherein the centre of the inner filter screen has a handle portion.

10. Floor drain according to claim 1, wherein the floor drain core is connected with a deodorizing structure at the lower part.