CN116163391A

CN116163391A - High-flow cup-type inner container floor drain

Info

Publication number: CN116163391A
Application number: CN202310028918.6A
Authority: CN
Inventors: 陈卫; 陈昊
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-12
Filing date: 2017-12-12
Publication date: 2023-05-26
Also published as: CN107905341A; CN107905341B

Abstract

The invention provides a large-flow cup-type liner floor drain, which consists of a floor drain cavity, a cup-type liner, a liner support and a reset mechanism, wherein a guide plate of an annular plate-shaped member is arranged above an annular channel formed by the inner surface of the floor drain cavity and the outer surface of the cup body to receive water flow flowing into the floor drain, prevent the water flow from directly flowing into the annular channel and guide the water flow to enter the cup body. According to the technical scheme, the cup-shaped liner is enabled to be subjected to larger downward acting force in the opening process of the floor drain, so that positive pressure in a drainage pipeline is overcome, the largest opening gap can be achieved when the floor drain is drained, and the flow of the floor drain is improved.

Description

High-flow cup-type inner container floor drain

[ field of technology ]

The present invention relates to a drainage device for buildings, in particular for receiving and transporting ground water to a drainage system, commonly known as a floor drain.

[ background Art ]

The floor drain is a commonly used building drainage device, mainly plays roles of draining water and preventing odor accumulated in a drainage pipeline from overflowing, and currently known floor drains mainly have water seal type, mechanical seal type and other types.

Common mechanical seal floor drain, the main parts include floor drain cavity, reset mechanism and floor drain bottom seal, and other accessory parts.

The inner space of the floor drain cavity is a water flow channel for draining the floor drain, and the lower end surface of the floor drain cavity and the floor drain bottom seal form a floor drain opening and closing system. The reset mechanism is a power mechanism for enabling the floor drain to recover to a closed state from an open state, and the driving force of the reset mechanism can be derived from mechanical force such as rebound of a spring or electromagnetic force such as attraction of a magnet. The reset mechanism drives the floor drain bottom seal to move, so that the floor drain is reset from a drainage state to a sealing state.

In order to improve the stability of the mechanical seal floor drain in the open state so as to increase the drainage, a technical scheme is proposed in the patent document of energy storage floor drain (CN 201428167Y, 2010.03.24), and the scheme is designed for a reset mechanism which drives the floor drain bottom seal to move by a linkage shaft. In the scheme, a cup body with small holes is additionally arranged at the lower part in linkage with a floor drain bottom seal in an automatic opening and closing mechanical sealing floor drain structure consisting of a reset mechanism (called an elastic mechanism in the text), a floor drain cavity (called a valve body in the text) and the floor drain bottom seal (called a blockage in the text). When the accumulated water on the ground flows into the floor drain, the accumulated water firstly enters the cup body through the flow guide of the flow guide plate, and when the water level in the cup body rises to a certain degree, the gravity of the water stored in the cup body compresses the spring and drives the floor drain bottom seal to move downwards through the linkage shaft so as to open the floor drain. In the floor drain drainage process, even if the flow rate of water flowing into the floor drain changes, the water storage amount in the cup body is not changed greatly, the acting force of the compression spring is kept stable, so that the downward displacement stability of the floor drain bottom seal is kept, and the floor drain is in a stable opening state. When no accumulated water flows into the floor drain, the accumulated water in the cup body flows out through the small hole, the gravity of the compression spring is gradually reduced until the spring is reset, and the floor drain is closed.

[ invention ]

In the technical scheme proposed in the patent document 'energy storage floor drain', two problems are caused by the fact that a guide plate is needed to be added to guide water flowing into the floor drain into a cup body, and the area of a water inlet of the floor drain is reduced due to the added guide plate; secondly, the water flow needs to flow reversely at 180 degrees to enter the annular channel between the cup body and the floor drain cavity. These two problems lead to an increased flow resistance of the water flowing through the floor drain and a reduced flow rate of the floor drain.

On the other hand, the technical solution proposed in the patent document "energy storage floor drain" does not take into account the following problems: firstly, in the opening process of the floor drain, the gravity of water stored in the cup body is the main acting force of the compression spring, but because a variable positive pressure usually exists in the sewage pipeline, the positive pressure acts on the bottom seal to generate upward acting force, so that the acting force of the compression spring is reduced, and if the positive pressure in the drainage pipeline is higher, the phenomenon that the floor drain cannot be opened occurs; when the floor drain is in a drainage state, the inner cavity of the floor drain is filled with water, so that the cup body is immersed in the water and is subjected to upward buoyancy; the upward buoyancy is opposite to the downward gravity direction of the water stored in the cup body, so that the downward acting force born by the cup body, namely the acting force of the compression spring, is reduced, the gap between the lower end surface of the floor drain cavity and the bottom seal is reduced, the flow area of the floor drain is reduced, and the drainage quantity is reduced.

According to the technical scheme, the large-flow cup-type liner floor drain is divided into two structural types of the small-caliber cup body and the large-caliber cup body, the flow channel structure is improved and the stress state of the cup-type liner is improved according to the two structural types by utilizing the difference of sensitivity of different structural types to flow influencing factors, so that the flow channel resistance of the floor drain is effectively reduced, the flow area of the floor drain is enlarged, and the drainage capacity of the floor drain is improved.

A large-flow cup-type liner floor drain consists of a floor drain cavity, a cup-type liner, a liner support and a reset mechanism, wherein a guide plate is arranged above the cup body, and is an annular plate-shaped member arranged above an annular channel formed by the inner surface of the floor drain cavity and the outer surface of the cup body.

Further, the vertical projection area of the cup body is larger than the vertical projection area of the cup bottom.

Furthermore, the lower part of the cup body and the lower part of the floor drain cavity are respectively provided with a gradually shrinking section, so that the section of the corresponding annular channel of the section is reduced along with the downward movement of the cup-shaped liner.

Further, a diversion trench is arranged above the cup body, the diversion trench comprises an annular water collecting area for receiving water flow flowing into the floor drain, and a groove-shaped water guide bridge which is connected with the annular water collecting area and is arranged above an annular channel formed by the inner surface of the floor drain cavity and the outer surface of the cup body, and is used for guiding the water flow flowing into the floor drain into the cup body, and flanges are arranged on the inner periphery of the diversion trench except for the outlet of the groove-shaped water guide bridge.

Further, the cup-shaped liner is supported on the cantilever beam through a linkage shaft penetrating through the axis of the cup-shaped liner.

Further, the cup-shaped inner container is fixed on a linkage shaft penetrating through the axis of the cup-shaped inner container, the linkage shaft comprises an upper half shaft and a lower half shaft, one section is provided with a concave fastener, the other section is provided with a convex fastener, and the upper half shaft and the lower half shaft are connected into a whole through the buckling connection of the concave fastener and the convex fastener.

Further, the bottom of the cup-shaped liner cup body is provided with a limit sleeve matched with the concave fastener of the upper half shaft, the lower half shaft is sleeved with a limit spring, and after the upper half shaft is buckled with the lower half shaft, the limit sleeve enters a limit position under the action of the limit spring, so that the concave fastener cannot be opened.

Furthermore, the liner support and the floor drain cavity are connected by adopting a plurality of cantilever beam buckles distributed along the outer periphery, and are assembled into a detachable or non-detachable whole.

Further, the elastic pressing plate is integrally connected with the outer edge of the upper end face of the floor drain cavity, the sealing ring is integrally connected with the outer edge of the elastic pressing plate, and the sealing ring is in contact with the floor drain base to achieve sealing.

The invention relates to a large-flow cup-type liner floor drain, which consists of a floor drain cavity, a cup-type liner, a liner support and a reset mechanism. The cup-shaped liner comprises a cup body, a cup foot and a cup bottom, wherein the bottom of the cup body is provided with small holes, the cup bottom is used as a bottom seal of the floor drain, the upper surface of the cup bottom is in contact with the lower end surface of the floor drain cavity when the floor drain is closed to realize sealing, and water flow is discharged from a gap between the upper surface of the cup bottom and the lower end surface of the floor drain cavity when the floor drain is opened. The cup-shaped inner container is connected with the reset mechanism and can move up and down to realize the opening and closing of the floor drain. The inner space of the floor drain cavity is a water flow channel for draining the floor drain, and the lower end surface of the floor drain cavity and the cup bottom form a floor drain opening and closing system. The cup-shaped liner consists of a cup body, a cup foot and a cup bottom, wherein the bottom of the cup body is provided with a small hole, the cup bottom is used as a floor drain bottom seal, the cup foot is used for limiting the distance between the cup bottom and the cup body and can be independently a part or attached to the cup body or the cup bottom and even evolved into a part of other parts. In the closed state of the floor drain, the upper surface of the cup bottom is tightly contacted with the lower end surface of the floor drain cavity to form a seal; and in the floor drain opening state, a gap between the upper surface of the cup bottom and the lower end surface of the floor drain cavity forms a water outlet of the floor drain. The inner container support is a part for connecting the floor drain cavity with the reset mechanism, and is connected with the cup-shaped inner container through the reset mechanism to support the cup-shaped inner container. In the schematic diagrams of fig. 1, 2, 3 and 4, the liner support is not shown. The reset mechanism is a power mechanism for returning the floor drain from an open state to a closed state, and the driving force of the reset mechanism can be derived from mechanical force such as rebound of a spring or electromagnetic force such as attraction of a magnet. The reset mechanism drives the floor drain bottom seal to move through the linkage shaft, so that the floor drain is reset from a drainage state to a sealing state. In the schematic diagrams of fig. 1, 2, 3 and 4, the reset mechanism is not shown.

The description of the technical scheme of the invention only relates to the functional components related to the invention, and does not relate to floor drain accessories which are not related to the invention, or the combination of the functional components. For example, the floor drain base is mounted to the floor and accessories thereon, receives water from the floor and directs it into the floor drain cavity; the guide plate and the guide groove can be part of a liner support, and the liner support can be integrated with the floor drain cavity; the floor drain cavity can be integrated with the base and can be separated from the base to form a detachable combined part. Nor is it limited that the floor drain cavity and cup must be circular.

For the small-caliber cup body large-flow cup-type liner floor drain, the invention adopts the technical scheme of expanding the water inlet of the floor drain and reducing the flow resistance of water flow, and the floor drain runner adopts a straight-through structure without a guide plate, namely, a member for preventing water flow from entering the annular channel is not arranged above the annular channel formed by the inner surface of the floor drain cavity and the outer surface of the cup body. The technical scheme enlarges the area of the water inlet of the floor drain, eliminates the flow resistance caused by 180-degree turning of water flow, and can obviously improve the flow rate of the floor drain.

Fig. 1 a is a schematic diagram of the working principle of the technical scheme of the present invention. When the floor drain is in a closed state, the inner surface of the floor drain cavity 1, the outer surface of the cup body 2-1 and the upper surface of the cup bottom 2-4 form a temporary water storage container together. When the surface water flows into the floor drain in the closed state, the flowing water firstly enters the temporary water storage container, and the water level in the container gradually rises along with the inflow of the water. The water stored in the container generates pressure at the cup bottom 2-4, the value of the pressure is approximately equal to the product of the static pressure of the stored water and the outlet area of the bottom end of the floor drain cavity 1, and the downward acting force is exerted on the reset mechanism. The downward acting force of the reset mechanism increases along with the increase of the water level in the temporary water storage container until the threshold value of the reset mechanism is reached, and the floor drain is opened. When the floor drain is in an open state, water flow enters an annular channel formed by the inner surface of the floor drain cavity 1 and the outer surface of the cup body 2-1, and is discharged from a gap between the lower end surface of the floor drain cavity 1 and the upper surface of the cup bottom 2-4.

In fig. 1, B is a schematic illustration of the drainage condition at the inlet of the floor drain in the technical scheme of the patent document "energy storage floor drain". In comparison with the A and B in the figure 1, the water flow flowing into the floor drain can enter the annular flow passage after 180 degrees of reversing due to the arrangement of the guide plate, and in the technical scheme of the invention, the water flow flowing into the floor drain from the ground is turned from 90 degrees in the approximately horizontal direction to enter the annular passage in the approximately vertical direction, so that the water flow resistance is greatly reduced; according to the technical scheme, the guide plate is not arranged at the inlet of the floor drain, and the area of the inlet channel for water flow to enter the floor drain can be increased by approximately 1 time.

In the technical scheme of the patent document 'energy storage floor drain', water flow firstly enters a cup body; the working principle of the technical proposal is slightly different, and the flowing water enters the cup body from the small hole 2-2. Because the water level in the temporary water storage container must rise to enough height in the opening process of the floor drain, the opening threshold of the reset mechanism can be reached, and the process ensures that enough water exists in the cup body 2-1 as long as the opening area of the small hole 2-2 is proper. For the small-caliber cup floor drain, the area of the water inlet and the flow passage resistance are more sensitive to the influence of the flow rate of the floor drain, so that the water discharge of the floor drain can be greatly increased on the premise of keeping the opening stable.

For the large-caliber cup body large-flow cup-type liner floor drain, the invention adopts the technical scheme of increasing the downward acting force born by the cup-type liner, and is characterized in that: the vertical projection area of the cup body is larger than the vertical projection area of the cup bottom. According to the technical scheme, under the floor drain drainage state, the downward acting force borne by the cup-shaped liner is increased, so that the maximum opening gap can be reached when the floor drain drains water, and the flow of the floor drain is improved.

Fig. 2 is a schematic diagram of the working principle of the technical scheme of the invention. When the floor drain drains, the main acting force of the cup-shaped liner is the gravity of water stored in the cup body 2-1, the pressure formed by the pressure difference between the upper surface and the lower surface of the cup body 2-1 and the drainage impact force of the cup bottom 2-4. These forces act together to maintain the floor drain in an open state.

In the floor drain drainage state, water flows through an annular channel formed by the inner surface of the floor drain cavity 1 and the outer surface of the cup body 2-1, and is discharged from a gap formed by the lower end surface of the floor drain cavity 1 and the upper surface of the cup bottom 2-4. After the water flow passes through the annular channel, vortex is generated on the bottom surface of the cup body 2-1, so that a low pressure area is formed. The pressure P applied to the cup body 2-1 is the product of the difference between the pressure pt on the upper surface of the cup body 2-1 and the pressure pb on the lower surface of the cup body 2-1 and the vertical projection area A of the cup body 2-1, namely: p= (pt-pb) x a; the larger A, the larger P.

From the law of conservation of momentum, it is known that: impact force f=water mass m×water velocity U to the cup bottom 2-4. Wherein the water flow mass M is equal to the product of the flow rate Q and the water density ρ, and the water flow velocity U is equal to the quotient of the flow rate Q and the outlet area S of the lower end of the floor drain cavity 1, so that f=q2ρ/S. It can be seen that at the same flow rate, the smaller S, the larger F.

In the technical scheme, the vertical projection area A of the cup body 2-1 is far larger than the vertical projection area S of the cup bottom 2-4, so that the downward acting force of the cup-shaped liner 2 during floor drain drainage can be effectively increased, and the floor drain opening stability is improved.

Further, the invention provides a technical scheme for arranging a contraction section flow passage in the large-flow cup-type liner floor drain with a large-caliber cup body, which is characterized in that: the lower part of the cup body and the lower part of the floor drain cavity are respectively provided with a gradually shrinking section, so that the section of the corresponding annular channel of the section is shrunk along with the downward movement of the cup-shaped liner. According to the technical scheme, the flowing resistance of the floor drain drainage is effectively reduced, the acting force for maintaining the opening of the floor drain during drainage is increased, and therefore the drainage amount of the floor drain is increased. The working principle is shown in figure 3. The annular channel formed by the inner surface of the floor drain cavity 1 and the outer surface of the cup body 2-1 consists of a vertical section flow channel and a contraction section flow channel. On the one hand, the arrangement of the contraction section flow channel effectively slows down the change of the flow channel, thereby reducing the flow resistance of water flow. On the other hand, the annular channel area of the shrinkage section flow channel is far smaller than the channel area of the upper surface of the cup body 2-1, so that the relative water flow speed is high, the corresponding water flow pressure is reduced, the pressure of the lower surface of the cup body 2-1 is effectively reduced, the downward acting force borne by the cup body is increased, the floor drain maintains a larger opening gap in an opening state, and the flow rate of the floor drain is improved. When the cup-shaped liner 2 moves downwards, the channel area of the flow channel of the contraction section is further reduced, the flow speed is further increased, the water flow pressure is further reduced, and the downward acting force applied to the cup body is further increased. The positive feedback process effectively improves the floor drain opening performance.

Further, the invention provides a technical scheme for arranging a guide plate in the large-flow cup-type liner floor drain with a large-caliber cup body, which is characterized in that: the upper part of the cup body is provided with a guide plate, the guide plate is an annular plate-shaped member arranged above an annular channel formed by the inner surface of the floor drain cavity and the outer surface of the cup body, the member receives water flows flowing into the floor drain, the water flows are prevented from directly flowing into the annular channel, and the water flows are guided to enter the cup body. The technical scheme is suitable for the floor drain with the cup-shaped inner container of the large-caliber cup body, can ensure that the cup-shaped inner container receives larger downward acting force in the opening process of the floor drain, and is used for overcoming possible positive pressure in a drainage pipeline. Fig. 4 is a schematic view of the structure and drainage state of the large-caliber cup-shaped liner floor drain with the guide plate.

The flow guide plates 3-4 reduce the flow area of the water inlet of the floor drain, but have little influence on the flow rate of the floor drain. In the floor drain opening process, the ground water firstly flows into the cup body 2-1 through the guide plate 3-4, the maximum gravity G of water stored in the cup body 2-1 is approximately equal to the product of the vertical projection area A of the cup body and the height h of the cup body, and the upward acting force of positive pressure in the drainage pipeline to the cup-shaped liner 2 is equal to the product of the vertical projection area of the cup bottom 2-4 and the positive pressure in the drainage pipeline. In the technical scheme, the vertical projection area of the cup body 2-1 can be selected to be far larger than the vertical projection area of the cup bottom 2-4, so that the maximum gravity G of water stored in the cup body 2-1 is far larger than the upward acting force generated by the positive pressure in the drainage pipeline and borne by the cup bottom 2-4, and the floor drain is ensured to be opened.

Further, the invention provides a technical scheme of a diversion trench suitable for the small-caliber cup body large-flow cup type liner floor drain and the large-caliber cup body large-flow cup type liner floor drain, which is characterized in that: the upper part of the cup body is provided with a diversion trench, the diversion trench comprises an annular water collecting area for receiving water flow flowing into the floor drain and a groove-shaped water guide bridge which is connected with the annular water collecting area and is arranged above an annular channel formed by the inner surface of the floor drain cavity and the outer surface of the cup body, the water flow flowing into the floor drain is led into the cup body, and the inner periphery of the diversion trench is provided with flanges except for an outlet of the groove-shaped water guide bridge. According to the technical scheme, the downward acting force borne by the cup-shaped liner is increased when the floor drain is opened, the channel area of the water inlet of the floor drain is not reduced, and the flow rate of the floor drain is increased. Fig. 5 is a schematic structural diagram of an implementation form of this technical solution. A-A is a schematic cross-sectional view of the annular water collecting area 3-5, B-B is a schematic cross-sectional view of the groove-shaped water guiding bridge 3-6, and 4 groove-shaped water guiding bridges 3-6 are arranged in the structure shown in fig. 5. The design of the height of the flange ensures that water flow enters the annular water collecting area 3-5 and enters the cup body through the groove-type water guide bridge 3-6 under the working condition of smaller water inflow of the floor drain. Under the working condition of large water inflow of the floor drain, most water flows can directly enter the annular channel beyond the annular water collecting area 3-5 and the flange of the groove-type water guide bridge 3-6.

Furthermore, the invention provides a technical scheme for supporting the cup-shaped liner by using the cantilever beam for the large-flow cup-shaped liner floor drain, which is characterized in that: the cup-shaped liner is supported on the cantilever beam through a linkage shaft penetrating through the axle center of the cup-shaped liner. According to the technical scheme, the cup body can be cleaned without disassembling the inner core of the floor drain, the channel area of the inlet of the floor drain is enlarged, and the drainage amount of the floor drain is increased.

Fig. 6 is a schematic structural diagram of an implementation form of this technical solution. The return mechanism 8 in fig. 6 is a spring mechanism including a return spring 8-1, an upper half shaft 8-2, a lower half shaft 8-3, and a limit spring 8-4. In fig. 6, the cup-shaped inner container 2 is fixed on a linkage shaft penetrating through the axis of the cup-shaped inner container, and the linkage shaft is formed by combining an upper half shaft 8-2 and a lower half shaft 8-3. The liner support 3 can be divided into a support ring 3-1, a cantilever beam 3-2 and a spring seat 3-3, the spring seat 3-3 is arranged at the end point of the cantilever beam 3-2, the cantilever beam 3-2 is connected with the support ring 3-1, and the upper half shaft 8-2 is supported on the spring seat 3-3.

Furthermore, the invention provides a technical scheme that a reset mechanism linkage shaft is connected by a buckle for the large-flow cup-shaped liner floor drain, and is characterized in that: the cup-shaped inner container is fixed on a linkage shaft penetrating through the axis of the cup-shaped inner container, the linkage shaft comprises an upper half shaft and a lower half shaft, one section is provided with a concave fastener, the other section is provided with a convex fastener, and the upper half shaft and the lower half shaft are connected into a whole through the buckling connection of the concave fastener and the convex fastener. According to the technical scheme, the assembly of the large-flow cup-type liner floor drain is simple and easy. Fig. 7 is a schematic structural diagram of an implementation form of this technical solution. The cup-shaped liner 2 is fixed on a linkage shaft penetrating through the axis of the liner, and the linkage shaft is divided into an upper half shaft 8-2 and a lower half shaft 8-3. The lower end of the upper half shaft 8-2 is a concave fastener structure, and the upper end of the lower half shaft 8-3 is a convex fastener structure. The concave fastener of the upper half shaft 8-2 comprises a clamping part 8-2-1, a counter bore part 8-2-2 and a narrow groove 8-2-3; the convex fastener of the lower half shaft 8-3 comprises a clamping column 8-3-1 and a clamping cap 8-3-2. In the buckling assembly process, the convex fastener of the lower half shaft 8-3 is inserted into the concave fastener of the upper half shaft 8-2, the concave fastener is opened due to elastic deformation, and after the convex fastener is pressed into the concave fastener, the convex fastener is attached to the concave fastener, and the concave fastener is elastically reset and locked. The concave fastener in the upper half shaft 8-2 is made of plastic and other elastic deformable materials, and the convex fastener in the lower half shaft 8-3 is made of plastic, metal and other elastic deformable materials.

Furthermore, the invention provides a locking protection scheme for the snap connection of the linkage shaft of the reset mechanism for the large-flow cup-type liner floor drain, which is characterized in that: the bottom of the cup-shaped liner cup body is provided with a limit sleeve matched with the concave fastener of the upper half shaft, the lower half shaft is sleeved with a limit spring, and after the upper half shaft is buckled and connected with the lower half shaft, the limit sleeve enters a limit position under the action of the limit spring, so that the concave fastener cannot be opened by the limit sleeve. According to the technical scheme, the snap-connected linkage shaft cannot be loosened under non-manual intervention, so that the reliable operation of the floor drain is ensured. Fig. 8 is a schematic structural diagram of an implementation form of this technical solution. The lower end of the upper half shaft 8-2 in the figure is a concave fastener structure, and the upper end of the lower half shaft 8-3 is a convex fastener structure. In the assembly process, when the concave fastener of the upper half shaft 8-2 is pressed into the convex fastener of the lower half shaft 8-3, the clamping part 8-2-1 of the concave fastener is opened, and the limiting sleeve 2-1-0 at the bottom of the cup body 2-1 does not prevent the concave fastener from being pressed into the convex fastener. After the buckling is completed, the clamping part 8-2-1 of the concave fastener is closed, the limiting spring 8-4 sleeved on the lower half shaft 8-3 is opened, the limiting sleeve 2-1-0 enters the limiting position, the stepped annular sleeve of the limiting sleeve 2-1-0 is sleeved on the clamping part 8-2-1 of the concave fastener of the upper half shaft 8-2, and the concave fastener is restrained from being opened.

Furthermore, the invention provides a technical scheme that the liner support and the floor drain cavity are connected by adopting cantilever beam buckles for the large-flow cup-shaped liner floor drain, and is characterized in that: the liner support and the floor drain cavity are connected by a plurality of cantilever beam buckles distributed along the outer periphery, and are assembled into a detachable or non-detachable whole. The technical proposal aims at ensuring that the assembly of the large-flow cup-type liner floor drain is simple and easy. Fig. 9 is a schematic structural diagram of an implementation form of this technical solution. 4 cantilever hooks 3-5 are arranged on the outer periphery of the supporting ring 3-1 of the liner supporting 3, and 4 buttonholes 1-1 matched with the cantilever hooks 3-5 on the liner supporting are arranged at corresponding positions on the floor drain cavity 1. In the pressing and assembling process, the cantilever hooks 3-5 deform into the buttonholes 1-1, and the cantilever hooks 3-5 rebound and self-lock in the buttonholes 1-1, so that the liner support 3 and the floor drain cavity 1 are combined into a whole.

Furthermore, the invention provides a technical scheme for replacing a separated sealing rubber ring with an integrated sealing ring for the large-flow cup-type liner floor drain, which is characterized in that: the outer edge of the upper end face of the floor drain cavity is integrally connected with an elastic pressing plate, the outer edge of the elastic pressing plate is integrally connected with a sealing ring, and the sealing ring is in contact with the floor drain base to realize sealing. The technical proposal omits a sealing rubber ring and makes the installation simpler. Fig. 10 is a schematic structural diagram of an implementation form of the present technical solution, where a is a partial enlarged view. The outer edge of the upper end face of the floor drain cavity 1 is integrally connected with an elastic pressing plate 1-1, the outer edge of the elastic pressing plate 1-1 is integrally connected with a sealing ring 1-2, the lower surface of the sealing ring 1-2 is in contact with a sealing surface on the upper surface of the floor drain base 6, and sealing is achieved under pressure generated by locking connection between the floor drain cavity 1 and the floor drain base 6. The elastic pressing plate 1-1 should be made of elastic material such as plastic. The floor drain cavity 1, the elastic pressing plate 1-1 and the sealing ring 1-2 can be integrally formed, such as plastic processing. If the floor drain cavity 1 and the liner support 3 are connected into a whole, the liner support 3 becomes the extension of the upper end surface of the floor drain cavity 1, and the integrated sealing ring can be integrally formed on the liner support 3.

[ description of the drawings ]

FIG. 1 is a schematic diagram of the operation of a large-flow cup-type liner floor drain with a small-caliber cup body and a straight-through structure without a guide plate. In the figure, A is a working principle diagram of the technical scheme of the invention, and B is a schematic diagram of the drainage condition at the inlet of the floor drain in the technical scheme of the patent document 'energy storage floor drain'.

FIG. 2 is a working principle diagram of the large-caliber cup body and large-flow cup-type liner floor drain.

FIG. 3 is a schematic diagram of the operation of the large-flow cup-type liner floor drain with the large-caliber cup body provided with the contraction section flow passage.

FIG. 4 is a schematic view of the structure and drainage state of a large-diameter cup body large-flow cup-type liner floor drain with a deflector.

Fig. 5 is a schematic structural view of the diversion trench. In the figure, 3-5 is an annular water collecting area, 3-6 is a groove-shaped water guiding bridge, A-A is a schematic cross-sectional view of the annular water collecting area 3-5, and B-B is a schematic cross-sectional view of the groove-shaped water guiding bridge 3-6.

Fig. 6 is a schematic view of a structure in which a cup liner is supported by a cantilever beam.

Fig. 7 is a schematic structural view of the snap connection of the linkage shaft of the reset mechanism. In the figure, 8-2 is an upper half shaft, 8-2-1 is a clamping part, 8-2-2 is a counter bore part, 8-2-3 is a narrow groove, 8-3 is a lower half shaft, 8-3-1 is a clamping column, and 8-3-2 is a clamping cap.

Fig. 8 is a schematic structural view of a locking protection device for snap connection of a linkage shaft of a reset mechanism. In the figure, 8-2 is an upper half shaft, 8-2-1 is a clamping part, 8-2-2 is a counter bore part, 8-3 is a lower half shaft, 8-3-1 is a clamping column, 8-3-2 is a clamping cap, 8-4 is a limiting spring, and 2-1-0 is a limiting sleeve.

FIG. 9 is a schematic view of the structure of the cantilever snap connection of the liner support and the floor drain cavity. In the figure, 1 is a floor drain cavity, 1-1 is a button hole, 3 is a liner support, 3-1 is a support ring, and 3-5 is a cantilever hook.

FIG. 10 is a schematic structural view of an integrated seal ring. In the figure, A is a partial enlarged view, 1 is a floor drain cavity, 1-1 is an elastic pressing plate, 1-2 is a sealing ring, and 6 is a floor drain base.

Fig. 11 is a schematic structural view of embodiment 1.

Fig. 12 is a schematic structural diagram of embodiment 2.

In the above figures: the floor drain comprises a floor drain cavity body 1, a cup-shaped inner container 2, a cup body 2-1, a small hole 2-2, a cup foot 2-3, a cup bottom 2-4, an inner container support 3, a supporting ring 3-1, a cantilever beam 3-3, a spring seat 3-4, a guide plate 3-4, a spring seat seal 4, a floor drain grate 5, a floor drain base 6, a sealing rubber ring 7, and a reset mechanism 8, wherein 8-1 is a reset spring, 8-2 is an upper half shaft, 8-3 is a lower half shaft, and 8-4 is a limit spring.

[ detailed description ] of the invention

Example 1 a floor drain arrangement embodying the invention is shown in figure 11.

The embodiment is a small-caliber cup body large-flow cup-type liner floor drain, the outer diameter of a cup body 2-1 is about 30mm, and a floor drain cavity 1 can be inserted into a vertical drainage pipeline with the nominal diameter of 50 mm. The floor drain base 6 is fixed on the ground and supports the whole floor drain device. The ground water is directly fed into an annular channel formed by the inner surface of the floor drain cavity 1 and the outer surface of the cup body 2-1 through the floor drain grate 5, the floor drain base 6 and the supporting ring 3-1 in the liner support 3, and is discharged from a gap formed by the lower end surface of the floor drain cavity 1 and the upper surface of the cup bottom 2-4. During the floor drain opening process and drainage, water flows into the cup body 2-1 from the small holes 2-2, and the floor drain is kept in a stable opening state under the gravity action of water stored in the cup body 2-1. Compared with the technical scheme of the patent document 'energy storage floor drain', the inner container support 3 of the embodiment has no guide plate, so that the water inlet of the floor drain is doubled, meanwhile, the flow resistance generated by 180 degrees of water flow detouring is avoided, and the flow of the floor drain is effectively improved.

The return mechanism 8 of the present embodiment adopts a spring mechanism, and uses the rebound of the compressed spring as the return driving force. The reset mechanism 8 comprises a reset spring 8-1, an upper half shaft 8-2, a lower half shaft 8-3 and a limit spring 8-4. The cup-shaped liner is supported by adopting a cantilever beam structure shown in fig. 6, a return spring 8-1 is fixed on a spring seat 3-3 of a liner support 3, the cup-shaped liner 2 is supported by an upper half shaft 8-2 and a lower half shaft 8-3, and the spring seat 3-3 is connected with a supporting ring 3-1 by a cantilever beam 3-2.

The liner support 3 is connected with the floor drain cavity 1 by adopting a cantilever beam buckle shown in fig. 8 to be assembled into a non-detachable whole, which is called a floor drain inner core, and is screwed on a floor drain base to be detachable and clean. And a sealing rubber ring 7 is arranged between the floor drain inner core and the floor drain base 6 to prevent odor of the drainage pipeline from leaking. The elasticity of the sealing rubber ring 7 also makes the disassembly and the installation of the inner core more convenient.

In the reset mechanism 8, the upper half shaft 8-2 and the lower half shaft 8-3 are connected by adopting a buckling structure shown in fig. 7 and 8, the lower half shaft 8-3 is buckled into a whole after being inserted and pressed during assembly, the bottom of the cup body 2-1 plays a role of a limiting sleeve 2-1-0 in fig. 8, and the lower half shaft 8-3 and the limiting sleeve 8-4 together ensure that the buckling structure of the upper half shaft 8-2 and the lower half shaft 8-3 is connected without loosening. The limit spring 8-4 has the other function of enabling the contact between the cup bottom 2-4 and the lower end surface of the floor drain cavity 1 to be more compact, and improving the sealing performance of the floor drain. The application of the buckle structure makes the assembly of the floor drain of the embodiment simpler.

Example 2 another floor drain arrangement, to which the invention is applied, is shown in figure 12.

The embodiment is a large-flow cup-type liner floor drain with a large-caliber cup body, the vertical projection area of the cup body 2-1 exceeds one time of the vertical projection area of the cup bottom 2-4, and the lower part of the cup body 2-1 and the lower part of the floor drain cavity 1 are provided with obvious gradually-contracted sections. Because the flow area of the water inlet of the floor drain is larger, the guide plate is arranged on the liner support 3, so that the downward acting force born by the cup-shaped liner is increased in the opening process of the floor drain, and the positive pressure in the drainage pipeline is overcome. The floor drain base 6 is fixed on the ground and supports the whole floor drain device. The ground water enters the cup body 2-1 through the floor drain grate 5, the floor drain base 6 and the supporting ring 3-1 and the guide plate 3-4 in the liner support 3, overflows from the cup body 2-1 and flows into an annular channel formed by the inner surface of the floor drain cavity 1 and the outer surface of the cup body 2-1, and is discharged from a gap formed by the lower end surface of the floor drain cavity 1 and the upper surface of the cup bottom 2-4. In the embodiment, as the water inlet of the floor drain is larger, the cup-shaped liner 2 receives larger downward acting force in the drainage process, so that the cup bottom 2-4 has sufficient and stable downward displacement, and the flow passage of the floor drain obtains larger flow area, thereby greatly improving the drainage capacity of the floor drain. In this embodiment, the deflector may be replaced with a diversion trench with the structure shown in fig. 5, so as to further enlarge the water inlet of the floor drain and obtain a larger flow.

The reset mechanism 8 of the embodiment also adopts a spring mechanism, the reset spring 8-1 is fixed on the spring seat 3-3 of the liner support 3, and the cup-shaped liner 2 is supported by the upper half shaft 8-2, the lower half shaft 8-3 and the limit spring 8-4. The support of the cup-shaped liner also adopts a cantilever beam structure, so as to facilitate the cleaning of the inside of the floor drain. The upper half shaft 8-2 and the lower half shaft 8-3 of the reset mechanism 8 are connected by adopting a buckling structure, the cup body 2-1 is matched with the limit spring 8-4, and locking protection is realized for buckling connection of the linkage shaft. The liner support 3 and the floor drain cavity 1 are connected and combined into a non-detachable whole body through a cantilever beam buckle. The embodiment also adopts an integrated sealing ring to replace the sealing rubber ring. By implementing the technical schemes, the assembly process of the large-flow cup-type liner floor drain with the large-caliber cup body is simpler.

Claims

1. A large-flow cup-type liner floor drain consists of a floor drain cavity, a cup-type liner, a liner support and a reset mechanism, and is characterized in that: the guide plate is arranged above the cup body and is an annular plate-shaped member arranged above an annular channel formed by the inner surface of the floor drain cavity and the outer surface of the cup body.

2. The high flow cup liner floor drain of claim 1, wherein the cup body has a larger vertical projected area than the cup bottom.

3. The high flow cup liner floor drain of claim 1, wherein the lower portion of the cup body and the lower portion of the floor drain cavity each have a tapered section such that the corresponding annular channel cross section of the section is tapered as the cup liner moves downwardly.

4. The high-flow cup-type liner floor drain according to claim 1, wherein a diversion trench is arranged above the cup body, the diversion trench comprises an annular water collecting area for receiving water flow flowing into the floor drain, and a groove-type water guide bridge connected with the annular water collecting area and formed above an annular channel formed by the inner surface of the floor drain cavity and the outer surface of the cup body for guiding the water flow flowing into the floor drain into the cup body, and flanges are arranged on the inner periphery of the diversion trench except for an outlet of the groove-type water guide bridge.

5. The high flow cup liner floor drain of claim 1, wherein the cup liner is supported on the cantilever beam by a linkage shaft extending through its axis.

6. The high flow cup liner floor drain of claim 1, wherein the cup liner is secured to a linkage shaft extending through the axle center thereof, the linkage shaft including an upper half shaft and a lower half shaft, one section having a female fastener and one section having a male fastener, the upper half shaft and the lower half shaft being integrally connected to the male fastener by a female fastener.

7. The large-flow cup-type liner floor drain according to claim 6, wherein a limiting sleeve matched with the concave fastener of the upper half shaft is arranged at the bottom of the cup-type liner cup body, a limiting spring is sleeved on the lower half shaft, and after the upper half shaft is buckled with the lower half shaft, the limiting sleeve enters a limiting position under the action of the limiting spring, and the concave fastener cannot be opened by the limiting sleeve.

8. The high-flow cup-type liner floor drain according to claim 1, wherein the liner support and the floor drain cavity are connected by a plurality of cantilever beam buckles distributed along the outer periphery, and are assembled into a detachable or non-detachable whole.

9. The large-flow cup-type liner floor drain according to claim 1, wherein the outer edge of the upper end face of the floor drain cavity is integrally connected with an elastic pressing plate, the outer edge of the elastic pressing plate is integrally connected with a sealing ring, and the sealing ring is in contact with the floor drain base to realize sealing.