CN217998336U - Floor drain main body and floor drain - Google Patents

Abstract

The utility model discloses a floor drain main part and floor drain. The floor drain main body is provided with a first connecting part and a second connecting part; the first connecting part and the second connecting part are both annular walls, and the second connecting part is arranged on the periphery of the first connecting part; the central hole of the first connecting part forms a first drainage channel; gaps formed between the outer wall of the first connecting part and the inner wall of the second connecting part at intervals form a second drainage channel; the tail end of the first connecting part and/or the second connecting part in the water outlet direction is provided with a connecting structure, and the connecting structure is concave or convex on the inner peripheral wall and/or the outer peripheral wall of the first connecting part and/or the second connecting part. The floor drain comprises a floor drain main body and a non-return device; the non-return ware is by flexible glue material integrated into one piece, includes the overwater portion and the drainage portion that set gradually along the drainage direction, and the overwater portion closely cup joints with first connecting portion and second connecting portion, and drainage portion is used for preventing that rivers from anti-overflowing. The floor drain main body provides a connecting structure for directly installing a drainage device.

Description

Floor drain main body and floor drain

Technical Field

The utility model relates to a offal device technical field, concretely relates to floor drain main part and floor drain.

Background

The existing floor drain is generally realized by arranging a water sealing plate which is blocked by means of a balancing weight or a torsion spring at the drainage end of the floor drain in order to realize deodorization and anti-overflow, and the realization of the deodorization and anti-overflow function of the floor drain has the problems of complex structure, more parts, poor installation convenience, higher use cost and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned defect or problem that exist among the background art, provide a floor drain main part and floor drain, this floor drain main part provides a connection structure, can supply drainage device direct mount to can solve foretell problem at least.

In order to achieve the purpose, the following technical scheme is adopted:

a floor drain body comprises a first connecting part and a second connecting part; the first connecting part and the second connecting part are both annular walls, and the second connecting part is arranged on the periphery of the first connecting part; a central hole of the first connecting part forms a first drainage channel, and a gap formed at intervals between the outer wall of the first connecting part and the inner wall of the second connecting part forms a second drainage channel; the tail end of the first connecting part and/or the second connecting part in the water outlet direction is provided with a connecting structure, and the connecting structure is concave or convex on the inner peripheral wall and/or the outer peripheral wall of the first connecting part and/or the second connecting part.

The floor drain main body is provided with a first connecting part and a second connecting part, a first drainage channel and a second drainage channel are respectively formed by a center hole of the first connecting part and a clearance formed by matching the outer wall of the first connecting part with the inner wall of the second connecting part and are used for drainage, namely, the floor drain main body is provided with the two drainage channels, and drainage requirements of different scenes, such as ground drainage and washing machine drainage, can be simultaneously realized; the first connecting part and the second connecting part are arranged to facilitate the sheathing and installation of soft rubber check components (such as duckbill valves); wherein, first connecting portion and/or second connecting portion are equipped with connection structure, and connection structure is concave or protruding setting on the internal perisporium and/or the periphery wall of first connecting portion and/or second connecting portion, and it can increase and the non return part between the frictional force, promotes the steadiness after the installation of non return part, can also realize passing through the joint with the non return part simultaneously and realize spacing intensity in order to further guarantee the non return part after installing to the non return part. The floor drain main body can realize deodorization and anti-back overflow only by sleeving the non-return part, and does not need to be provided with a complex one-way water sealing structure, so that the material cost and the installation cost are favorably reduced.

Further, a first conical surface with the diameter gradually reduced along the water drainage direction is arranged on the outer wall of the first connecting part; the small end of the first conical surface extends to the water outlet end of the first connecting part.

The outer wall of the water outlet end of the first connecting part is formed into a first conical surface, so that the non-return part can be conveniently inserted to form guiding, and the non-return part can be conveniently installed.

Furthermore, the water outlet end of the first connecting part protrudes out of the water outlet end of the second connecting part.

The water outlet end of the first connecting part protrudes out of the water outlet end of the second connecting part, the check component can be installed with the second connecting part after being installed in place with the water outlet end of the first connecting part, operation is convenient, and in addition, under the condition that the check component is not installed with the second connecting part, an operator can observe whether the component is installed in place with the first connecting part or not to ensure the reliability of assembling of the check component and the first connecting part.

The technical scheme also provides a floor drain which comprises the non-return device and a floor drain main body; the backstop is integrally formed by a soft rubber material and comprises a water passing part and a water draining part which are sequentially arranged along the water draining direction; the water passing part is tightly sleeved with the first connecting part and the second connecting part and is provided with a first water passing channel and a second water passing channel arranged around the periphery of the first water passing channel; the first water passing channel is communicated with the first drainage channel; the second water passing channel is communicated with the second drainage channel; the water passing part is also provided with a bulge or a groove which is used for being matched and clamped with the connecting structure; the drainage part comprises a first deformation part and a second deformation part; the first deformation part is suitable for opening the first water passing channel through deformation and closing the first water passing channel through deformation recovery when the first water passing channel is in water passing and is in water cut-off; the second deformation part is suitable for opening the second water passing channel through deformation and closing the second water passing channel through deformation restoration when the second water passing channel passes water and is disconnected.

The non-return device provided by the technical scheme can realize axial spacing of the non-return device on the floor drain main body and ensure the stability of connection of the non-return device and the floor drain main body by arranging the bulge or the groove and clamping the connecting structure, and can effectively avoid the non-return device from being separated from the floor drain main body due to impact of water pressure. When the backstop and the floor drain main body are installed in place, the first water passing channel and the second water passing channel are respectively communicated with the two water discharging channels of the floor drain main body, when the first water discharging channel and the first water passing channel cut off water, the first deformation part is not acted by external force and is closed under the action of the elasticity of the first deformation part, and at the moment, the first water passing channel is closed, so that the odor and water of a sewer pipeline can be prevented from reversely overflowing to the first water passing channel; when water flows through the first drainage channel and the first water passing channel, the first deformation part is deformed and opened under the action of water pressure, the first water passing channel is opened at the moment, and water flowing through the first drainage channel and the first water passing channel can be normally discharged; when the second drainage channel and the second water passing channel cut off water, the second deformation part is not acted by external force and is closed by the aid of the elastic action of the second deformation part, and the second water passing channel is closed at the moment, so that odor and water in the sewer pipeline can be prevented from reversely overflowing to the second water passing channel; when water flows through the second drainage channel and the second water passing channel, the second deformation part is deformed and expanded under the action of water pressure, the second water passing channel is opened at the moment, and water flowing through the second drainage channel and the second water passing channel can be normally discharged; when first drainage channel, first water passing channel, second drainage channel and second water passing channel are crossed simultaneously, first deformation portion and second deformation portion take place to warp simultaneously and open, the rivers homoenergetic that first water passing channel and second passed the water course of flowing through all can normally discharge, also promptly, this non return ware can also compromise two drainage channel's drainage simultaneously, the drainage area is big, the drainage speed is fast and be difficult for taking place ponding, when two drainage channel are drained simultaneously, the non return ware can prevent effectively that two drainage channel from appearing rivers each other and scurrying and anti-overflow phenomenon each other.

The non-return device provided by the technical scheme realizes the opening and closing of the first water passing channel and the second water passing channel by means of the elastic characteristic of the non-return device, does not use a complex mechanical structure in cooperation with the floor drain main body, is long in service life, low in failure probability and good in effectiveness, and can meet the use requirements of consumers more easily.

Further, the second deformation part is arranged around the periphery of the first deformation part and is at least partially connected with the first deformation part into a whole.

The second deformation part is arranged around the periphery of the first deformation part, so that the structure is simple and the forming is convenient; at least part through with second deformation portion sets up to be even as an organic whole with first deformation portion to guarantee that first deformation portion has different atress condition along circumference when second water passing way water and second deformation portion take place to warp, thereby guarantee that first deformation portion also can take place to warp when first water passing way water, in order to realize that the non return ware has the function that can open first water passing way and second water passing way simultaneously.

Further, the outer wall of the second connecting part is provided with an annular clamping groove; the annular clamping groove forms the connecting structure; the water passing part comprises a first water guide wall and a second water guide wall which are funnel-shaped; the inner cavity of the first water guide wall forms the first water passing channel, the small end of the first water passing channel is connected with the first deformation part into a whole, the water inlet end of the first water passing channel is tightly sleeved outside the first connecting part, and the inner wall of the first water guide wall is provided with a second conical surface matched with the first conical surface; the second water guide wall surrounds the periphery of the first water guide wall, the inner wall of the second water guide wall is matched with the outer wall of the first water guide wall at intervals to form the second water passing channel, the small end of the second water passing channel is connected with the second deformation part into a whole, and the water inlet end of the second water passing channel is tightly sleeved outside the second connecting part and is provided with a clamping ring which is matched and clamped with the annular clamping groove.

In the water passing part, the first water guide wall and the second water guide wall are both funnel-shaped, on one hand, the first water guide wall and the second water guide wall can be conveniently connected with the floor drain main body, on the other hand, because the bottoms of the first water guide wall and the second water guide wall are both cone-shaped, when water flow is accumulated, the water pressure directions borne by the bottoms of the first water guide wall and the second water guide wall are both inclined downwards and far away from one side of the water discharging part, so that the first deformation part and/or the second deformation part can be more easily driven to deform and the first water passing channel and/or the second water passing channel can be opened; the second water guide wall is clamped with the annular clamping groove forming the connecting structure through the clamping ring, the structure is simple, and the clamping function is reliable.

Further, the floor drain main body comprises a floor drain seat and a floor drain core body; the floor drain core body is located the floor drain seat just is equipped with first connecting portion and second connecting portion.

The floor drain comprises a floor drain seat and a floor drain core body, wherein the floor drain seat is suitable for being installed on an external base body such as the ground, and the floor drain core body ensures that a drainage channel is formed, a check device is installed and is in plug-in fit with a sewer pipeline.

Further, the first connecting portion and the second connecting portion both extend vertically, and the top end of the second connecting portion is lower than the top end of the first connecting portion.

The first connecting portion and the second connecting portion vertically extend, and can be conveniently butted with a sewer pipeline, two drainage channels defined by the first connecting portion and the second connecting portion mainly extend in the vertical direction, the drainage direction is consistent with the water inlet direction of the sewer pipeline, and water flow is smooth and easy and is not easy to accumulate water and overflow. First connecting portion are located the centre and are applicable to the drain pipe intercommunication with equipment such as washing machine or dish washer, the second connecting portion are located first connecting portion periphery, it is more suitable for being used for inserting ground drainage with the second drainage channel of first connecting portion outer wall formation, therefore, set up the top of second connecting portion for being less than the top of first connecting portion, be favorable to making first connecting portion more conveniently with the drain pipe connection of equipment such as outside ground washing machine or dish washer, and make the drainage clearance that second connecting portion and first connecting portion cooperation formed can be less than the floor drain seat top and realize the water receiving to ground ponding reliably.

Further, the floor drain main body further comprises a floor drain cover; the floor drain cover is arranged on the floor drain base and provided with a first hole and a plurality of second holes; the first hole is used for inserting the water inlet end of the first connecting part; and each second hole is communicated with a gap formed by matching the second connecting part and the first connecting part.

In the floor drain main body, the floor drain cover is provided with a first hole for inserting the top end of the first connecting part, so that the water inlet end of the first connecting part can be ensured to be communicated with a drain pipe of equipment such as a washing machine or a dish washing machine, and meanwhile, the drain pipe or a joint part of the equipment such as the washing machine or the dish washing machine can be conveniently detached from the first connecting part without dismounting the floor drain cover, and the floor drain main body can be conveniently switched in different use scenes; the second hole is used for draining surface water, and the floor drain body can drain water through the first hole and the second hole simultaneously under the condition that the first connecting part is not connected with an external drain pipe or a joint part.

Further, the floor drain main body further comprises a water draining joint; the water inlet end of the first connecting part is detachably and hermetically connected with the water outlet joint, and a communicated water outlet channel is arranged in the water outlet joint.

The lower water joint is detachably and hermetically fixedly connected with the water inlet end of the first connecting part, so that the equipment such as a washing machine or a dish washing machine is communicated with the floor drain main body.

Further, the floor drain core body is in threaded connection with the floor drain seat; the lower water joint is in threaded connection with the first connecting part.

The floor drain core body is in threaded connection with the floor drain seat, so that the floor drain core body is convenient to disassemble and assemble and is stable relative to the floor drain seat; the launching connector is fixedly connected with the first connecting part in a detachable mode through the screw joint, and the connecting structure is simple and convenient to assemble and disassemble.

Drawings

In order to more clearly illustrate the technical solution of the embodiments, the drawings needed to be used are briefly described as follows:

fig. 1 is a schematic view of a three-dimensional exploded structure of a partial structure of the floor drain of the present invention;

fig. 2 is a schematic view of the cross section structure of the floor drain in the non-drainage state according to the embodiment of the present invention;

fig. 3 is a schematic structural view of a floor drain core body in the embodiment of the floor drain of the utility model;

figure 4 is the sectional structure schematic diagram of the floor drain core in the embodiment of the floor drain of the utility model;

FIG. 5 is a schematic structural view of a non-return device in the embodiment of the floor drain of the present invention;

fig. 6 is a schematic sectional view of the first drainage channel for drainage in the embodiment of the floor drain of the present invention;

FIG. 7 is a schematic sectional view showing the second drainage channel of the floor drain of the present invention;

fig. 8 is a schematic sectional view of the embodiment of the floor drain of the present invention showing the simultaneous drainage of the first drainage channel and the second drainage channel.

Description of the main reference numerals:

a floor drain body 1; a floor drain base 11; a first step portion 111; a second stepped portion 112; a first internal thread 113; a third stepped portion 114; a floor drain core 12; a first connection portion 121; a second internal thread 1211; a fourth stepped portion 1212; a first conical surface 1213; an abutment face 1214; a first sewer 1210; a second connecting portion 122; a threaded flange 1221; first external threads 1221a; a ring card slot 1222; a second sewer 1220; a sealing gasket 123; a floor drain cover 13; a first hole 131; a second aperture 132; a rotating latch 133; a launch fitting 14; a second external thread 141;

a backstop 2; a water passing portion 21; a first water conveying part 211; a second conical surface 2111; the second water guide 212; a snap ring 2121; a first water passage 210a; a second water passage 210b; a drain section 22; a first deformation part 221; the second deformation portion 222.

Detailed Description

In the claims and specification, unless otherwise specified the terms "first", "second" or "third", etc., are used to distinguish between different items and are not used to describe a particular order.

In the claims and specification, unless otherwise specified, the terms "central," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," "counterclockwise," and the like are used in the orientation and positional relationship indicated in the drawings and are used for ease of description only and do not imply that the referenced device or element must have a particular orientation or be constructed and operated in a particular orientation.

In the claims and the description, unless otherwise specified, the terms "fixedly connected" or "fixedly connected" should be understood in a broad sense to mean any connection between the two without a relative displacement or a relative rotation, that is to say including non-detachably fixed connection, integrated and fixedly connected by other means or elements.

In the claims and specification, unless otherwise defined, the terms "comprising", "having" and variations thereof mean "including but not limited to".

In the claims and the description, unless otherwise specified, the terms "front", "rear" and their variants, in particular the side of the faucet intended to face the human body in the mounted state of the faucet is front and the side intended to face away from the human body is rear.

The technical solution in the embodiments will be clearly and completely described below with reference to the accompanying drawings.

The application provides a floor drain main part, it just is used for the drainage in being applied to the floor drain, and for convenient understanding, this embodiment will specifically combine this use scene of floor drain to explain the corresponding structure and the effect of floor drain main part.

Referring to fig. 1-8, fig. 1-8 show the floor drain of the present embodiment. As shown in fig. 1 to 8, the floor drain provided by the present embodiment comprises a floor drain body 1 and a back-stop 2.

The floor drain main body 1 is suitable for being installed on the ground and used for draining water, a sewer pipe is connected below a sewer opening which is formed in advance in the ground, and the floor drain main body 1 can be installed at the sewer opening and is communicated with the sewer pipe. In this specification, the water discharge direction of a conventional sewage outlet is referred to as the vertical direction.

The floor drain main body 1 is provided with a first connecting part 121 and a second connecting part 122; the first connecting portion 121 and the second connecting portion 122 are both annular walls, and the second connecting portion 122 is disposed at the periphery of the first connecting portion 121; the central hole of the first connecting part 121 forms a first drainage channel, a gap formed between the outer wall of the first connecting part 121 and the inner wall of the second connecting part 122 forms a second drainage channel, and the first drainage channel and the second drainage channel are both used for communicating with an external drainage environment and realizing drainage; in this embodiment, the first connecting portion and/or the second connecting portion are provided with a connecting structure at the end along the water outlet direction; the connection structure is recessed or raised on the inner and/or outer circumferential walls of the first and/or second connection portions. Specifically, in this embodiment, the outer wall of the water outlet end of the second connecting portion 122 is provided with a ring-shaped slot 1222, and the ring-shaped slot 1222 constitutes the connecting structure.

In the floor drain main body 1, a first drainage channel and a second drainage channel are respectively formed by a center hole of the first connecting part 121 and a gap formed by matching the outer wall of the first connecting part 121 and the inner wall of the second connecting part 122 and are used for drainage, namely, the floor drain main body is provided with two drainage channels, and drainage requirements of different scenes, such as ground drainage and washing machine drainage, can be met at the same time; the first connecting part 121 and the second connecting part 122 are arranged to allow a soft rubber check component (such as a duckbill valve) to be conveniently sleeved and mounted; wherein, first connecting portion 121 and/or second connecting portion 122 are equipped with connection structure, and connection structure is sunken or the protrusion sets up on the internal perisporium and/or the periphery wall of first connecting portion 121 and/or second connecting portion 122, and it can increase and the non return part between the frictional force, promotes the steadiness after the installation of non return part, can also realize realizing spacing intensity after further guaranteeing the installation of non return part to the non return part through the joint with the non return part simultaneously. The floor drain main body can realize deodorization and anti-back overflow only by sleeving the non-return part, and a complex one-way water sealing structure is not required, so that the material cost and the installation cost are favorably reduced. In this embodiment, the outer wall of the water outlet end of the outer wall of the first connecting portion 121 is provided with the annular clamping groove 1222, and the annular clamping groove 1222 constitutes a connecting structure, so that the structure is simple, the forming is convenient, and the function of connection is reliable.

Specifically, in the present embodiment, the floor drain main body 1 includes a floor drain seat 11, a floor drain core 12, a floor drain cover 13, a water draining joint 14 and a hair collecting plate 15.

Wherein, the floor drain seat 11 is matched with the shape of the lower water gap and can be fixedly arranged at the lower water gap. Referring to fig. 1, the floor drain base 11 is a cylinder-like structure with an inner diameter decreasing from top to bottom, the top end and the bottom end of the floor drain base are both provided with openings, a plurality of step portions are arranged inside the floor drain base, wherein each step portion is a first step portion 111, a second step portion 112 and a third step portion 114 from top to bottom, the first step portion 111 is used for installing the floor drain cover 13, the second step portion 112 is used for installing the hair collecting plate, the hair collecting plate is an accessory with a ratchet and capable of collecting hairs and sundries, and the third step portion 114 is used for installing the floor drain core 12. The part of the inner wall of the floor drain base 11 engaging over the third step 114 is provided with a first internal thread 113, and the first internal thread 113 is used for screwing with the floor drain core 12.

The floor drain core 12 is seated on the floor drain seat 11 and is provided with a first connecting part 121 and a second connecting part 122.

Referring to fig. 1 to 4, the floor drain core 12 is used for forming a drainage channel, installing the check device 2 and forming a plug-in fit with the sewer pipe, and is an integrally formed round pipe-shaped member, and is provided with a first connecting portion 121 and a second connecting portion 122, wherein the first connecting portion 121 and the second connecting portion 122 both extend vertically and are both in an annular wall structure, and can be conveniently butted with the sewer pipe, and two drainage channels defined by the first connecting portion 121 and the second connecting portion 122 mainly extend in a vertical direction, the drainage direction is consistent with the water inlet direction of the sewer pipe, and the water flow is smooth and not easy to accumulate water and overflow.

The first connecting portion 121 is specifically an annular wall structure with a step, and the inner diameter of the first connecting portion is reduced from top to bottom, the step surface in the first connecting portion forms a fourth step portion 1212, a second internal thread 1211 is formed on the inner wall of the portion, located above the fourth step portion 1212, of the fourth connecting portion, the second internal thread 1211 is used for screwing the lower water joint 14, and the fourth step portion 1212 is used for seating the lower water joint 14; the central hole of the first connection part 121 constitutes a first drain 1210 (also referred to as first drain passage as described above), in particular also a first drain of the entire floor drain body 1. In this embodiment, the outer wall of the first connection portion 121 is provided with a first conical surface 1213 whose diameter gradually decreases in the water discharge direction; the small end of the first conical surface 1213 extends to the water outlet end of the first connection 121 (i.e. the bottom end of the first connection 121), the first conical surface 1213 serving to guide the installation of the no-return device 2 to facilitate the installation of the no-return device 2 and to form a reliable seal with the no-return device 2; in addition, the outer wall of the first connecting portion 121 is further provided with an abutting surface 1214 engaged with the upper end of the first conical surface 1213, and the abutting surface 1214 is disposed downward and is used for abutting the check device 2 to position the mounting position of the check device 2.

The second connecting portion 122 is an annular wall structure, and is coaxially and alternately sleeved on the periphery of the first connecting portion 121, a gap formed by the inner wall of the second connecting portion and the outer wall of the first connecting portion 121 forms a second sewer 1220 (i.e. the second drainage channel), and both the second sewer 1220 and the first sewer 1210 are used for drainage; it should be understood that, in order to ensure that the first connection portion 121 and the second connection portion 122 are connected integrally, corresponding connection ribs may be formed between the inner wall of the second connection portion 122 and the first connection portion 121; in this embodiment, the outer wall of the top end of the second connecting portion 122 is provided with a screw joint flange 1221, the screw joint flange 1221 is provided with a first external thread 1221a, and the first external thread 1221a is used for being in screw joint with the first internal thread 113 to realize the screw joint relationship between the floor drain core 12 and the floor drain base 11, and the floor drain core 12 is simple in structure and convenient to assemble and disassemble, and is stable in arrangement relative to the floor drain base 11; the outer wall of the water outlet end of the second connecting portion 122 is provided with an annular clamping groove 1222, and the annular clamping groove 1222 is used for being clamped with the backstop 2 to limit the axial movement of the backstop 2 relative to the floor drain main body 1, namely, to limit the up-and-down movement of the backstop 2 relative to the floor drain main body 1.

Preferably, in this embodiment, the water outlet end of the first connection portion 121 (i.e., the bottom end of the first connection portion 121) protrudes from the water outlet end of the second connection portion 122 (i.e., the bottom end of the second connection portion 122), so that the check member can be installed with the second connection portion 122 after being installed in place with the water outlet end of the first connection portion 121, which is convenient for operation, and in addition, under the condition that the check member is not installed with the second connection portion 122, an operator can ensure the reliability of the assembly of the check member with the first connection portion 121 by observing whether the check member is installed in place with the first connection portion 121. In this embodiment, the top end of the second connection portion 122 is lower than the top end of the first connection portion 121, and specifically, the top end of the second connection portion 122 is lower than the outer step surface of the first connection portion 121, because the first connection portion 121 is located in the middle and is suitable for communicating with a drain pipe of a washing machine or a dishwasher, and the second channel is located at the periphery of the first connection portion 121, and a drain gap (i.e., the second sewer 1220) formed by the first connection portion 121 and the outer wall of the first connection portion 121 is more suitable for accessing ground drainage, therefore, by setting the top end of the second connection portion 122 lower than the top end of the first connection portion 121, it is beneficial to enable the first connection portion 121 to be more conveniently connected with a drain pipe of an external washing machine or a dishwasher, and enable a drain gap formed by the second connection portion 122 and the first connection portion 121 being lower than the top end of the floor drain 11 and reliably realizing water collection for ground accumulated water, and furthermore, the top end of the second connection portion 122 is lower than the outer step surface of the first connection portion 121, and it is also possible to ensure that the water inlet end of the second sewer 1220 is not blocked by the first connection portion 121.

In order to realize the sealing fit between the floor drain core 12 and the floor drain seat 11, in this embodiment, a sealing washer 123 is abutted between the screwing flange 1221 and the third step 114, so as to avoid water leakage from a gap between the floor drain seat 11 and the floor drain core 12.

The floor drain cover 13 is covered on the floor drain base 11 and is provided with a first hole 131 and a plurality of second holes 132; the first hole 131 is used for inserting the water inlet end of the first connecting part 121, so that the water inlet end of the first connecting part 121 can be communicated with a drain pipe of equipment such as a washing machine or a dish washer, and meanwhile, the drain pipe or a joint part of the equipment such as the washing machine or the dish washer can be conveniently detached from the first connecting part 121 without detaching the floor drain cover 13, so that the floor drain main body 1 can be conveniently switched in different use scenes; each of the second holes 132 is communicated with a gap (i.e., the second sewer pipe 1220) formed by the second connection part 122 and the first connection part 121 in a matched manner and forms a second drainage channel of the entire floor drain body 1, the second hole 132 is used for receiving surface water, and in the case that the first connection part 121 is not connected with an external drainage pipe or joint part, the floor drain body 1 can drain water through the first hole 131 and the second hole 132 at the same time.

Specifically, referring to fig. 2, the floor drain cover 13 is a circular disc-shaped member, a circular first hole 131 is formed through the middle portion of the floor drain cover in the vertical direction, a plurality of second holes 132 are formed around the periphery of the first hole 131 in the circumferential direction, and the second holes 132 are also formed through the floor drain cover 13 in the vertical direction, and the shape of the second holes 132 may be circular or irregular. Preferably, in order to improve the stability of the floor drain cover 13 on the floor drain base 11, in this embodiment, an L-shaped rotating block 133 protruding outwards is disposed on an edge of a lower surface of the floor drain cover 13, a rotating clamping groove for clamping the rotating block 133 is disposed on an inner wall portion of the floor drain base 11 located above the first step portion 111, and the rotating block 133 is engaged with the rotating clamping groove to limit the floor drain cover 13 to be separated from the floor drain base 11.

The lower water joint 14 is detachably and hermetically fixedly connected with the water inlet end of the first connecting part 121 so as to realize the communication between the floor drain main body 1 and equipment such as a washing machine or a dish washing machine, and a lower water channel communicated with the first drainage channel is arranged in the lower water joint.

Specifically, referring to fig. 1 and 2, the lower water joint 14 is a tubular member, and the outer wall of the bottom of the lower water joint is provided with a second external thread 141, and the second external thread 141 is screwed with the second internal thread 1211 on the first connection portion 121, that is, the lower water joint 14 is detachably and fixedly connected with the first connection portion 121 through screwing, so that the connection structure is simple and the disassembly and assembly are convenient. In order to seal the lower water joint 14 and the first connection portion 121, a sealing ring is sleeved on a part of an outer wall of the lower water joint 14 inserted into the first connection portion 121 and is in sealing contact with an inner wall of the first connection portion 121. Preferably, in this embodiment, the outer wall of the upper portion of the lower water joint 14 is further provided with a plurality of annular retaining ribs, each retaining rib is arranged along the up-down direction, and the retaining ribs can be matched with the pipe wall of the drain pipe of the washing machine or the dish washing machine, so as to prevent the drain pipe from falling off. After the water discharge pipe is connected to the lower water joint 14, the water in the water discharge pipe can be discharged through the lower water joint 14 and the first sewer 1210.

In this embodiment, the check device 2 is integrally formed of a soft rubber material, and includes a water passing portion 21 and a water draining portion 22 sequentially arranged along the water draining direction. The water passing part 21 is closely sleeved with the first connecting part 121 and the second connecting part 122, and is provided with a first water passing channel 210a and a second water passing channel 210b arranged around the periphery of the first water passing channel 210a; the first water passing channel 210a communicates with the central hole (i.e., the first sewer 1210) of the first connection part 121; the second water passing channel 210b communicates with a gap (i.e., a second sewer 1220) formed by the outer wall of the first connecting part 121 and the inner wall of the second connecting part 122 in a matching manner; the water passing portion 21 is further provided with a protrusion or a groove for matching and clamping with the connection structure, and specifically, since the connection structure in this embodiment is an annular clamping groove formed on the second connection portion 122, the water passing portion 21 is specifically provided with a clamping ring 2121 matching and clamping with the annular clamping groove 1222.

The drain 22 includes a first deformation part 221 and a second deformation part 222; the first deformation part 221 is adapted to open the first water passing channel 210a by deformation and close the first water passing channel 210a by deformation return when the first water passing channel 210a is in water supply and water supply is cut off, respectively; the second deformation part 222 is arranged around the periphery of the first deformation part 221, so that the structure is simple and the forming is convenient; the second deformation part 222 is adapted to open the second water passing channel 210b by deformation and to return to close the second water passing channel 210b by deformation when the second water passing channel 210b passes water and is disconnected, and particularly, the second deformation part 222 is at least partially integrated with the first deformation part, so that when the second water passing channel passes water and the second deformation part deforms, different positions on the circumferential wall of the first deformation part have different stress conditions, and thus the first deformation part can also deform when the first water passing channel passes water, so that the check device has a function of opening the first water passing channel and the second water passing channel simultaneously.

Specifically, referring to fig. 1, 2 and 5, the water passing part 21 includes a first water guide wall 211 and a second water guide wall 212 each having a funnel shape. The inner cavity of the first water guide wall 211 forms a first water passing channel 210a, the small end of the first water passing channel is connected with the first deformation part 221 into a whole, the water inlet end of the first water passing channel is tightly sleeved outside the first connecting part 121, and the inner wall of the first water guide wall is provided with a second conical surface 2111 matched with the first conical surface 1213; it should be noted that, due to the arrangement of the first conical surface 1213, the diameter of the opening at the top end of the first water guiding wall 211 is inevitably larger than the outer diameter of the bottom end of the first connecting portion 121, so that the first water guiding wall 211 and the first connecting portion 121 can be conveniently sleeved, and the installation difficulty is reduced; the second conical surface 2111 is arranged, so that the inner wall of the first water guide wall 211 can be matched and attached to the outer wall of the first connecting part 121, and the sealing performance is ensured; the second water guide wall 212 surrounds the periphery of the first water guide wall 211, the inner wall of the second water guide wall 212 is in spaced fit with the outer wall of the first water guide wall 211 to form a second water passing channel 210b, the small end of the second water passing channel is connected with the second deformation portion 222 into a whole, the water inlet end of the second water passing channel is tightly sleeved outside the second connection portion 122, and a retaining ring 2121 is arranged. It should be noted that, in the embodiment, when the first water guide wall 211 and the second water guide wall 212 are not in a water passing state, the inclined portions at the bottom of the first water guide wall 211 and the second water guide wall 212 are not subjected to the gravity action of the water pressure and the water flow, so that the small ends of the first water guide wall 211 and the second water guide wall 212 are in a closed state, and therefore, the anti-overflow and the anti-odor of the first water channel 210a and the second water channel 210b can be realized. In order to improve the stability and the sealing performance when the first water guide wall 211 and the second water guide wall 212 are respectively sleeved with the first connecting portion 121 and the second connecting portion 122, in this embodiment, at least portions of the inner walls of the snap ring 2121 and the first water guide wall 211, which are located on the second conical surface 2111, are also provided with a plurality of annular convex ribs arranged along the vertical direction. In the water passing portion 21 of the present embodiment, the first water guide wall 211 and the second water guide wall 212 are both funnel-shaped, and on one hand, they can be connected with the floor drain main body 1 conveniently, and on the other hand, because the bottoms of the two water guide walls are both cone-shaped, when the water flow is accumulated, the water pressure direction borne by the bottoms of the two water guide walls is inclined downwards and far away from one side of the water discharging portion 22, so that it is easier to drive the first deformation portion 221 and/or the second deformation portion 222 to deform and open the first water passing channel 210a and/or the second water passing channel 210b.

Preferably, in order to improve the structural strength of the water passing portion 21, in this embodiment, the thicknesses of the portions of the first water guide wall 211 and the second water guide wall 212, which are respectively sleeved with the first connecting portion 121 and the second connecting portion 122, are respectively close to the thicknesses of the first connecting portion 121 and the second connecting portion 122, so that, in order to match the protruding portions of the outer wall of the second connecting portion 122, which are located below the annular clamping groove 1222, in this embodiment, the inner wall of the second water guide wall 212 is further provided with an annular groove, which is suitable for the protruding portions to be matched, and the matching of the annular groove and the protruding portions can further enhance the connection strength between the backstop 2 and the second water guide wall 212. More preferably, in this embodiment, the first water guiding wall 211 is sleeved on the outer wall of the first connection portion 121, the outer wall thereof is flush with the outer wall of the first connection portion 121, and the inner wall thereof does not protrude from the inner wall of the first connection portion 121; after the second water guiding wall 212 is sleeved on the outer wall of the second connecting portion 122, the outer wall thereof is flush with the outer wall of the second connecting portion 122, and the inner wall thereof does not protrude from the inner wall of the second connecting portion 122, so that the water flow in the first sewer 1210 and the second sewer 1220 can be prevented from being blocked by the first connecting portion 121 and the second connecting portion 122, and the drainage smoothness and drainage speed are not affected, and meanwhile, the water passing portion 21 can be reliably inserted into the sewer.

Referring to fig. 1, 6 to 8, the drain part 22 includes a first deformation part 221 and a second deformation part 222. Wherein, the first deformation part 221 and the second deformation part 222 are both in a flat tube structure, and are similar to a duckbill shape, in the example given in this embodiment, one of the lips of the first deformation part 221 and one of the lips of the second deformation part 222 are connected into a whole; when the first water passing channel 210a is not passing water, the two lips of the first deformation part 221 tightly cling to and close the first water passing channel 210a; when the first water passing channel 210a passes through water, the two lips of the first deformation part 221 are separated from each other, so that the first water passing channel 210a is opened; when the second water passing channel 210b does not pass water, the two lips of the second deformation part 222 tightly cling to the outer wall of the first deformation part 221 and close the second water passing channel 210b; when the second water passing channel 210b passes through water, the two lips of the second deformation part 222 are separated from each other and the second deformation part 222 has at least one lip away from the outer wall of the first deformation part 221, thereby opening the second water passing channel 210b; when the first water passing channel 210a and the second water passing channel 210b simultaneously pass water, the two lips of the first deformation part 221 and the two lips of the second deformation part 222 are both opened, and the first water passing channel 210a and the second water passing channel 210b are simultaneously opened and drain water.

The backstop 2 provided by this embodiment can realize axial spacing of backstop 2 on floor drain main body 1 and ensure the stability of backstop 2 being connected with floor drain main body 1 by snap ring 2121 and annular clamping groove 1222 on the outer wall of second connecting part 122, and can effectively avoid backstop 2 from separating from floor drain main body 1 due to water pressure impact. When the backstop 2 and the floor drain main body 1 are installed in place, the first water passing channel 210a and the second water passing channel 210b are respectively communicated with two drainage channels of the floor drain main body 1, when the central hole of the first connecting part 121 and the first water passing channel 210a are cut off, the first deformation part 221 is not acted by external force and is closed under the action of the elasticity of the first deformation part, at the moment, the first water passing channel 210a is closed, and the odor and water in a sewer can be prevented from reversely overflowing to the first water passing channel 210a; when the central hole of the first connection part 121 and the first water passing channel 210a pass water, the first deformation part 221 is deformed and opened by the action of water pressure, at this time, the first water passing channel 210a is opened, and the water flowing through the central hole of the first connection part 121 and the first water passing channel 210a can be normally discharged; when the gap formed by the outer wall of the first connecting part 121 and the inner wall of the second connecting part 122 is matched and the second water passing channel 210b is cut off, the second deformation part 222 is not acted by external force and is closed by the elastic action of the second deformation part, and at the moment, the second water passing channel 210b is closed, so that the odor and water in the sewer can be prevented from overflowing to the second water passing channel 210b; when the gap formed by the outer wall of the first connection part 121 and the inner wall of the second connection part 122 is matched and the second water passing channel 210b passes water, the second deformation part 222 is deformed and expanded by the action of water pressure, at the moment, the second water passing channel 210b is opened, and water flowing through the gap formed by the outer wall of the first connection part 121 and the inner wall of the second connection part 122 and the second water passing channel 210b can be normally discharged; when the center hole of first connecting portion 121, first water passing channel 210a, the clearance that first connecting portion 121 outer wall and the cooperation of second connecting portion 122 inner wall formed and second water passing channel 210b crossed water simultaneously, first deformation portion 221 and second deformation portion 222 took place to warp simultaneously and open, the water that first water passing channel 210a of flowing through and the water that second water passing channel 210b of flowing through all can normally discharge, that is, this non return device 2 can also compromise two drainage channels's drainage simultaneously, not only the drainage area is big, the drainage speed is fast and difficult for taking place ponding, and can also prevent effectively that two drainage channels from appearing rivers each other and scurrying and anti-overflow phenomenon.

The backstop 2 that this embodiment provided relies on self elastic characteristic to realize opening and close of first water passing channel 210a and second water passing channel 210b, and its cooperation with floor drain main part 1 does not use complicated mechanical structure, and long service life, probability of failure are low, validity are good, satisfy consumer's user demand more easily.

When the floor drain provided by the embodiment is installed, the floor drain seat 11 is installed in the sewer port on the ground, the first water guide wall 211 of the check device 2 is firstly sleeved outside the bottom of the first connecting part 121 until the top end of the first water guide wall abuts against the abutting surface 1214, then the second water guide wall 212 of the check device 2 is sleeved outside the bottom of the second connecting part 122 and ensures that the snap ring 2121 is matched and clamped with the annular clamping groove 1222, then the floor drain core body 12 provided with the check device 2 is installed on the floor drain seat 11 in a threaded manner, then the sewer joint 14 is installed on the top end of the floor drain core body 12 in a threaded manner, and finally the floor drain cover 13 is rotationally clamped on the floor drain seat 11.

When in use, if no water enters the sewer pipe joint 14 or the second holes 132, the state of the floor drain is as shown in fig. 2, at this time, the first deformation part 221 and the second deformation part 222 are not opened, and the first water passing channel 210a and the second water passing channel 210b are closed, so that the odor and the water flow of the sewer pipe can be effectively prevented from overflowing reversely; if water enters the water discharging joint 14, the first water discharging channel discharges water, the state of the floor drain is as shown in fig. 6, at this time, the inclined part at the bottom of the first water guiding wall 211 bears the external force action that the water pressure and the water flow gravity bring about that the inclined part is downward and faces the periphery, the two lips of the first deformation part 221 are separated under the stress, the bottom end of the first water passing channel 210a is opened, and the water in the first water discharging channel and the first water passing channel 210a can be normally discharged; if water enters each second hole 132, the second water drainage channel drains, and the state of the floor drain is as shown in fig. 7, at this time, the inclined portion at the bottom of the second water guide wall 212 bears the external force action of the water pressure and the water flow gravity which incline downwards and face the periphery, the two lips of the second deformation portion 222 are far away from each other, the bottom end of the second water passing channel 210b is opened, and the water in the second water drainage channel and the second water passing channel 210b can be normally drained; if water enters the water inlet joint 14 and each second hole 132, the first drainage channel and the second drainage channel are drained, the state of the floor drain is as shown in fig. 8, at this time, the inclined part at the bottom of the second water guide wall 212 bears the external force action of the water pressure and the water flow gravity, the inclined part is downward and faces the periphery, the two lips of the first deformation part 221, which are far away from the first deformation part 222, are separated from each other, the bottom end of the second water passing channel 210b is opened, and the water in the second drainage channel and the second water passing channel 210b can be normally drained; the bottom end of the first water passing channel 210a is also opened, and the first water discharging channel and the first water passing channel 210a can also discharge water normally.

The above description of the specification and examples is intended to illustrate the scope of the invention, but should not be construed as limiting the scope of the invention.

Claims (11)

1. A floor drain main body is characterized by comprising a first connecting part and a second connecting part; the first connecting part and the second connecting part are both annular walls, and the second connecting part is arranged on the periphery of the first connecting part; a gap formed between the outer wall of the first connecting part and the inner wall of the second connecting part at intervals forms a second drainage channel; the tail end of the first connecting part and/or the second connecting part in the water outlet direction is provided with a connecting structure, and the connecting structure is concave or convex on the inner peripheral wall and/or the outer peripheral wall of the first connecting part and/or the second connecting part.

2. The floor drain body according to claim 1, wherein the outer wall of the first connecting portion is provided with a first conical surface having a diameter gradually decreasing in a water discharge direction; the small end of the first conical surface extends to the water outlet end of the first connecting part.

3. A floor drain body as claimed in claim 2, wherein the outlet end of said first connecting portion projects beyond the outlet end of said second connecting portion.

4. Floor drain, characterized in that it comprises a non-return device and a floor drain body according to any of claims 2-3; the backstop is integrally formed by a soft rubber material and comprises a water passing part and a water discharging part which are sequentially arranged along the water discharging direction;

the water passing part is tightly sleeved with the first connecting part and the second connecting part and is provided with a first water passing channel and a second water passing channel arranged around the periphery of the first water passing channel; the first water passing channel is communicated with the first drainage channel; the second water passing channel is communicated with the second drainage channel; the water passing part is also provided with a bulge or a groove which is used for being matched and clamped with the connecting structure;

the drainage part comprises a first deformation part and a second deformation part;

the first deformation part is suitable for opening the first water passing channel through deformation and closing the first water passing channel through deformation restoration when the first water passing channel is in water passing and is in water cut-off;

the second deformation part is suitable for opening the second water passing channel through deformation and closing the second water passing channel through deformation restoration when the second water passing channel passes water and is disconnected.

5. The floor drain of claim 4, wherein the second deformation is disposed around the periphery of the first deformation and has at least a portion integrally connected to the first deformation.

6. The floor drain of claim 5, wherein the outer wall of the second connecting portion is provided with an annular clamping groove; the annular clamping groove forms the connecting structure;

the water passing part comprises a first water guide wall and a second water guide wall which are funnel-shaped; the inner cavity of the first water guide wall forms the first water passing channel, the small end of the first water passing channel is connected with the first deformation part into a whole, the water inlet end of the first water passing channel is tightly sleeved outside the first connecting part, and the inner wall of the first water passing channel is provided with a second conical surface matched with the first conical surface; the second water guide wall surrounds the periphery of the first water guide wall, the inner wall of the second water guide wall is matched with the outer wall of the first water guide wall at intervals to form the second water passing channel, the small end of the second water passing channel is connected with the second deformation part into a whole, and the water inlet end of the second water passing channel is tightly sleeved outside the second connecting part and is provided with a clamping ring which is matched and clamped with the annular clamping groove.

7. The floor drain of claim 6, wherein the floor drain body comprises a floor drain base and a floor drain core; the floor drain core body is located in the floor drain seat and is provided with the first connecting portion and the second connecting portion.

8. The floor drain of claim 7, wherein the first connecting portion and the second connecting portion each extend vertically and a top end of the second connecting portion is lower than a top end of the first connecting portion.

9. The floor drain of claim 8, wherein said floor drain body further comprises a floor drain cover; the floor drain cover is covered on the floor drain base and is provided with a first hole and a plurality of second holes; the first hole is used for inserting the water inlet end of the first connecting part; and each second hole is communicated with a gap formed by matching the second connecting part and the first connecting part.

10. The floor drain of claim 9, wherein said floor drain body further comprises a drain fitting; the water inlet end of the first connecting part is detachably and hermetically connected with the water outlet joint, and a communicated water outlet channel is arranged in the water outlet joint.

11. The floor drain as claimed in claim 10 wherein said floor drain core is threadably connected to said floor drain base; the lower water joint is in threaded connection with the first connecting part.

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