CN217782261U - Drain valve device - Google Patents

Abstract

The utility model relates to a drain valve device for install in the water tank that has the outlet in the bottom, the bottom of water tank is equipped with the drainage channel that can communicate with the outlet. The water discharge valve device comprises a power device and a push plate, and the push plate is positioned below the water discharge port. The power device uses fluid as driving force and can apply fluid pressure on the push plate to push the push plate to move between the water outlet and the bottom of the water drainage channel. The utility model discloses a drain valve device can effectively strengthen the scouring nature of closestool, and simple structure, and is with low costs, and the commonality is strong.

Description

Drain valve device

Technical Field

The utility model relates to a bath technical field especially relates to a drain valve device.

Background

For a low-platform intelligent closestool, the built-in water tank is limited by the height of the closestool, so that the liquid level of the water tank is low, the water tank is flushed by the potential energy of water only, and the flushing force is insufficient. At present, a water pump is commonly used as a power source in the industry to pressurize a water path and increase impulsive force. However, the water pump is high in price, and the water pump is used as a key component of a water system, so that faults are easy to occur, and the pressure of cost and quality is high; the adoption of the water pump can involve an electric control and driving part, and the quality risk of the product is increased.

When some existing manufacturers wash, a tap water assisting mode is introduced to the main flushing opening of the closestool to increase the flushing effect. However, the existing ceramic pipeline mode cannot be adopted, an extra pipeline is needed to be connected with a tap water channel and connected to the main flushing channel in parallel, and the pipeline connection is complex; and a plurality of sealing points are arranged, so that the problem of water leakage is easily caused when the installation is not in place.

Therefore, the inventor provides a water discharge valve device by virtue of experience and practice of related industries for many years, so as to overcome the defects in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drain valve device can effectively strengthen the scouring nature of closestool, and simple structure, and is with low costs, and the commonality is strong.

The utility model aims to realize that a drain valve device is used for being arranged in a water tank with a water outlet at the bottom, and the bottom of the water tank is provided with a drain passage which can be communicated with the water outlet; the water discharge valve device comprises a power device and a push plate, and the push plate is positioned below the water discharge port; the power device uses fluid as driving force and can apply fluid pressure on the push plate to push the push plate to move between the water outlet and the bottom of the water drainage channel.

In a preferred embodiment of the present invention, the push plate is a buoyant member and is configured to move upwardly under the action of buoyancy to a position close to the drain opening.

In a preferred embodiment of the present invention, the drain valve device further comprises a piston assembly and an installation cylinder with an opening at the bottom, the installation cylinder can be movably arranged in the water tank and can seal the water outlet, an installation cylinder inlet is arranged on the installation cylinder, and the piston assembly can be slidably arranged in the installation cylinder and connected with the push plate; under the action of fluid pressure at the inlet of the installation cylinder, the installation cylinder can be pushed to move upwards to open the water outlet, and the piston assembly can be pushed to drive the push plate to move downwards.

In a preferred embodiment of the present invention, a one-way exhaust valve is further disposed at the top of the mounting tube.

In a preferred embodiment of the present invention, the piston assembly comprises a piston and a connecting rod connected up and down, and the lower end of the connecting rod is connected with the push plate; the upper portion of piston has the bulge loop of outside salient, and the outer wall of bulge loop is close to the inner wall setting of installation section of thick bamboo and leaves the clearance between the two, and installation section of thick bamboo import is located the top of bulge loop.

In a preferred embodiment of the invention, a float is provided on the piston assembly and/or the push plate.

In a preferred embodiment of the present invention, an extension ring is convexly disposed at the bottom of the installation cylinder, and an installation cylinder sealing ring is disposed at the bottom surface of the extension ring.

In a preferred embodiment of the present invention, a positioning member of the installation barrel is fixedly disposed in the water tank above the water outlet for limiting the extension ring.

In a preferred embodiment of the present invention, a plurality of notches are formed on the bottom sidewall of the mounting tube and below the extension ring.

The utility model discloses an in a preferred embodiment, just be located the below of installation section of thick bamboo import and be equipped with the spacing portion of piston in the installation section of thick bamboo for carry on spacingly to piston assembly.

From above, the utility model provides a drain valve device, through the boosting structure that power device and push pedal constitute, with the power effect that power device provided in the push pedal, the motion that utilizes the push pedal does work to the water in the drainage channel, can assist the impulsive force that increases the main flushing route, strengthens the scouring performance of closestool. Meanwhile, the fluid is used as power, the energy in the fluid is directly applied to the push plate, the energy of the fluid is fully utilized to apply work to the water channel to effectively improve the scouring performance, the structure is simpler, the realization is easy, the cost is low, and the universality is strong. Whole device need not parallelly connected the main water course that dashes with extra pipeline on, is difficult for leading to leaking to can realize that the helping hand under low water pressure and the ultralow water pressure erodees, erodees the effect better.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:

FIG. 1: is the cross-sectional view of the closestool provided by the utility model.

FIG. 2: an enlarged view of the water tank and drain valve arrangement of figure 1.

FIG. 3: for the utility model provides a push pedal moves down in-process water tank and drain valve device's structure chart.

FIG. 4 is a schematic view of: for the utility model provides a water tank and drain valve device's during push pedal motion to bottom structure chart.

The reference numbers indicate:

1. a ceramic body structure; 11. a water tank; 111. an annular sealing rib; 112. a water discharge port; 113. installing a barrel limiting part; 12. a drainage channel; 13. a rubber water channel;

2. mounting the cylinder; 21. installing a cylinder inlet; 22. an extension ring; 221. mounting a cylinder sealing ring;

3. a piston assembly; 31. a piston; 311. a convex ring; 32. a connecting rod; 33. a float;

4. and (3) pushing a plate.

Detailed Description

In order to clearly understand the technical features, objects and effects of the present invention, the embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1 to 4, the present embodiment provides a drain valve apparatus for installation in a water tank 11 having a drain opening 112 at the bottom thereof, the bottom of the water tank 11 being provided with a drain passage 12 capable of communicating with the drain opening 112. The drain valve device comprises a power device and a push plate 4, and the push plate 4 is positioned below the water outlet 112; the power means utilizes fluid as a driving force and can apply fluid pressure to the push plate 4 to move the push plate 4 between the drain opening 112 and the bottom of the drain passage 12.

The fluid used herein may be a liquid (e.g., water) or a gas, as required. The water tank 11 mainly refers to a water tank 11 in a closestool, the closestool comprises a ceramic body structure 1, the water tank 11 is arranged in the top of the ceramic body structure 1, and a water outlet 112 of the water tank 11 is mainly formed by enclosing an annular sealing rib 111 at the opening at the bottom of the water tank 11; the drainage channel 12 is disposed in the ceramic body structure 1 and below the water tank 11, an upper port of the drainage channel 12 can communicate with a drainage port 112 of the water tank 11, a side port of the drainage channel 12 is connected with a rubber waterway 13, and the drainage channel 12 and the rubber waterway 13 constitute a main flushing waterway of the toilet. A corresponding water inlet valve is also arranged in the water tank 11, water can be fed into the water tank 11 when the water inlet valve is opened, the water inlet valve is mainly opened and closed according to the liquid level in the water tank 11, and the water can be automatically opened when the liquid level in the water tank 11 is reduced to a preset value, so that water can be fed into the water tank 11; when the liquid level in the water tank 11 rises to a preset value, the water tank 11 is automatically closed, and water stops flowing in; the structure of the specific water inlet valve is the existing structure, and is not described in detail herein. The water inlet and the water discharge valve device in the water tank 11 perform water discharge actions independently; when the water tank needs to be flushed, the gravity of water in the water tank 11 is combined with the movement of the push plate 4, so that the flow speed of water flow can be effectively increased, and the flushing effect is improved.

Therefore, in the drain valve device in the embodiment, the power provided by the power device acts on the push plate 4 through the boosting structure formed by the power device and the push plate 4, and the water in the drain channel 12 is acted by the movement of the push plate 4, so that the impulsive force of the main flushing path can be increased in an auxiliary manner, and the flushing performance of the toilet bowl is enhanced. Meanwhile, the fluid is used as power, the energy in the fluid directly acts on the push plate 4, the energy of the fluid is fully utilized to apply work to the water channel to effectively improve the scouring performance, the structure is simpler, the implementation is easy, the cost is low, and the universality is strong. Whole device need not connect in parallel the main water course that dashes with extra pipeline on, is difficult for leading to leaking to can realize low water pressure and the helping hand under the ultralow water pressure and erode, the washing effect is better.

Preferably, the push plate 4 is a buoyant member and is configured to move upwardly to a position near the drain opening 112 under the effect of buoyancy and to move downwardly under the effect of fluid pressure. After the push plate 4 finishes the power-assisted flushing, the push plate can automatically move upwards to reset under the action of buoyancy, and is simpler and more convenient.

In order to facilitate the closing and opening of the water outlet 112, the drain valve device further comprises a piston assembly 3 and an installation cylinder 2 with an opening at the bottom, the installation cylinder 2 can be movably arranged in the water tank 11 and can seal the water outlet 112, an installation cylinder inlet 21 (the installation cylinder inlet 21 is positioned above the piston assembly 3 and generally arranged on the top side wall of the installation cylinder 2) is arranged on the installation cylinder 2, and the piston assembly 3 can slide and is arranged in the installation cylinder 2 in a penetrating manner and connected with the push plate 4. Under the action of the fluid pressure of the inlet 21 of the installation cylinder, the installation cylinder 2 can be pushed to move upwards to open the water outlet 112, and the piston assembly 3 can be pushed to drive the push plate 4 to move downwards.

The whole drain valve device not only forms the drain valve structure of the water tank 11, but also has the function of assisting flushing, realizes the integration of the drain valve function and the function of assisting flushing, skillfully utilizes one power to realize the functions of boosting and opening the drain valve, and has a simpler structure.

In practical applications, a one-way exhaust valve (not shown in the figures) is further provided at the top of the installation cylinder 2, so that the exhaust of gas inside the installation cylinder 2 can be realized.

In the process of draining water from the water tank 11, air enters the water channel and floats upwards along the pipe wall and flows into the mounting cylinder 2; when the fluid entering the mounting cylinder inlet 21 is gas, the gas will also be present in the mounting cylinder 2 after the gas inlet is stopped. If there is air or other gas in the installation section of thick bamboo 2, can influence the come-up of push pedal 4, so be equipped with one-way discharge valve at the top of installation section of thick bamboo 2, prevent outside gas entering installation section of thick bamboo 2 after the exhaust is accomplished, can effectively guarantee the come-up of push pedal 4 and reset. It will be appreciated that upon entry of fluid (e.g. liquid or gas) at the cartridge inlet 21, there may be little, if any, seepage of water or gas flow out of the one-way vent valve.

Generally, for convenience of processing and installation, the piston assembly 3 comprises a piston 31 and a connecting rod 32 which are connected up and down, and the lower end of the connecting rod 32 is connected with the push plate 4; the upper part of the piston 31 is provided with a convex ring 311 which protrudes outwards, the outer wall of the convex ring 311 is arranged close to the inner wall of the mounting cylinder 2, a gap is reserved between the convex ring and the inner wall, the mounting cylinder inlet 21 is positioned above the convex ring 311, and the float 33 is arranged on the piston assembly 3 and/or the push plate 4.

Wherein, the piston 31 can adopt a column structure, and the outer diameters of the column structure and the connecting rod 32 are both smaller than the inner diameter of the installation cylinder 2. When the fluid entering the inlet 21 of the installation cylinder is tap water, the pressure of the tap water is low or ultra-low because of small pressure; the convex ring 311 may be made of plastic, and the outer diameter thereof is slightly smaller than the inner diameter of the mounting cylinder 2, and the clearance between the two is very small, generally 0.5mm, so as to substantially ensure the sealing between the piston 31 and the mounting cylinder 2, and at the same time, the movement of the piston 31 is not affected by the too large friction force between the two. The two ends of the connecting rod 32 and the piston 31 and the push plate 4 can be fixed in any way, for example, in this embodiment, the two ends of the connecting rod 32 and the piston 31 and the push plate 4 are fixed in a way of inserting (interference fit) in the insertion holes. The position of the float 33 may be provided on at least one of the piston 31, the connecting rod 32 and/or the push plate 4, as long as the push plate 4 constitutes a buoyant member; for example, the float 33 is a ring member and is fixed to the piston 31.

In another feasible mode, the piston assembly 3 can also directly adopt an integrally formed cylindrical structure, the outer diameter of the cylindrical structure is slightly smaller than the inner diameter of the installation cylinder 2, the gap between the outer diameter and the inner diameter is small, and the fluid entering from the inlet 21 of the installation cylinder directly acts on the top end face of the cylindrical structure to push the piston assembly 3 to move. Of course, the piston assembly 3 may also take other forms, and this embodiment is merely for illustration.

Further, the installation cylinder 2 is mainly sunk under the action of gravity and seals the water outlet 112, specifically, an extension ring 22 is outwardly protruded at the bottom of the installation cylinder 2, an installation cylinder sealing ring 221 is arranged on the bottom surface of the extension ring 22, and the installation cylinder sealing ring 221 can be in sealing fit with the upper end of the annular sealing rib 111 to seal the water outlet 112.

A limiting member 113 for limiting the extension ring 22 is further disposed in the water tank 11 above the water outlet 112, so as to limit the upward movement of the installation cylinder 2 when the water flow pushes the installation cylinder 2 upward. A plurality of notches may be formed in the bottom sidewall of the mounting barrel 2 and below the extension ring 22 to allow water in the water tank 11 to flow into the drain port 112 more smoothly during the draining stage of the drain port 112. A piston limiting part (not shown in the figures) is arranged in the mounting cylinder 2 and below the mounting cylinder inlet 21 and used for limiting the piston assembly 3 (specifically, limiting the convex ring 311 on the piston 31) and further limiting the floating position of the push plate 4.

In more detail, referring to fig. 2 to 4, taking tap water as an example of the fluid entering at the inlet 21 of the installation cylinder, the specific operation process of this structure is as follows:

the water inlet in the water tank 11 and the water inlet of the inlet 21 of the mounting cylinder are independent and are respectively connected with tap water through corresponding pipelines; the inlet 21 of the installation cylinder can be opened or closed by arranging an on-off valve for controlling water inflow on a pipeline connected with the inlet.

In the initial state (i.e. the state without flushing water, the state before flushing water), as shown in fig. 1 and fig. 2, the mounting cylinder 2 seals the water outlet 112 by the mounting cylinder sealing ring 221 under the action of gravity, at this time, the mounting cylinder inlet 21 is in the closed state and the mounting cylinder 2 is filled with tap water, so the float 33 drives the piston 31, the connecting rod 32 and the push plate 4 to float to the top of the mounting cylinder 2 and be limited by the piston limiting part. It can be understood that when the water-saving and water-saving device is used for the first time, the installation cylinder 2 is not filled with tap water, the push plate 4 cannot float to the top of the installation cylinder 2, and the push plate 4 is weak in power-assisted scouring effect when the water-saving and water-saving device is used for the first time; but the first time use is accomplished the back, and in later use, all can be filled with water in initial condition installation section of thick bamboo 2, push pedal 4 can come up to the top, can effectively guarantee to erode the effect.

When a user presses a down water-flushing key (namely, a water-flushing signal is given), firstly, an inlet 21 of the mounting cylinder is opened, water flow enters the mounting cylinder 2 from the inlet 21 of the mounting cylinder, water with pressure acts on the piston 31, and the piston 31 drives the push plate 4 to move downwards to apply work to the water in the drainage channel 12; synchronous, utilize the reaction force of running water, be used in installation section of thick bamboo 2, with installation section of thick bamboo 2 jack-up that makes progress for installation section of thick bamboo sealing washer 221 leaves sealing position, realizes that outlet 112 opens, and the water in the water tank 11 flows into drainage channel 12 under the effect of gravity in, and combine with push pedal 4 motion, realizes superimposed effect, and the water in drainage channel 12 has promoted the flow velocity under the combined action of gravity and push pedal 4 helping hand, and then improves and erodes the effect.

The process can be referred to fig. 3 and 4, fig. 3 shows an intermediate state after water is fed into the inlet 21 of the mounting cylinder, at this time, the mounting cylinder 2 floats upwards to open the water outlet 112, and the piston 31 drives the push plate 4 to push downwards through the connecting rod 32, so as to assist the discharged water flow. Fig. 4 shows that the boosting state is completed after the push plate 4 reaches the bottom of the drainage channel 12, and the top of the piston 31 is positioned in the bottom of the mounting cylinder 2 and is not separated from the mounting cylinder 2; the installation cylinder 2 is limited by the installation cylinder limiting part 113 and can not rise continuously, the installation cylinder inlet 21 still continues to feed water, and the water outlet 112 continues to be opened and keeps in a water discharging stage until the installation cylinder inlet 21 is closed.

Due to the arrangement of the floater 33, when the push plate 4 moves to the bottom of the drainage channel 12, the inlet 21 of the installation cylinder is closed to stop water inflow, and the external force acting on the installation cylinder 2 and the piston 31 disappears; the mounting cylinder 2 falls due to gravity, the mounting cylinder packing 221 reseals the drain opening 112, and the drain phase ends. At this time, because the drainage port 112 is sealed, negative pressure is formed in the drainage channel 12, so that the installation cylinder 2 is in a full pipe water state, and upward buoyancy is generated on the piston 31 under the action of the float 33, so that the float 33 can drive the piston 31, the connecting rod 32 and the push plate 4 to start floating motion; when the piston 31 moves to the top, the piston 31 is limited by the limiting part, the reset of the push plate 4 is completed, a flushing process is completed, and the whole device returns to an initial natural state, as shown in fig. 1 and fig. 2.

The whole drain valve device adopts an upper sealing water push mode, utilizes the mounting cylinder sealing ring 221 at the bottom of the mounting cylinder 2 to seal the water outlet 112 by gravity falling, adopts the upper sealing mode of gravity sealing, has relatively low sealing requirement, is not easy to leak water, is easier to process and manufacture, and has stable performance. The effect of utilizing water plays the promotion effect to installation section of thick bamboo 2 and piston 31, reaches installation section of thick bamboo 2 and rises and the synchronous downstream state of piston 31 to open outlet 112 and play the helping hand effect to discharge water stream, directly act on push pedal 4 with the energy of running water, and realize the integration of drain valve function and helping hand scouring function, change the realization, the commonality is strong, and improved the scouring performance.

The above are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.

Claims (10)

1. A drain valve device is used for being installed in a water tank with a water outlet at the bottom, and a drain channel which can be communicated with the water outlet is arranged at the bottom of the water tank; it is characterized in that the preparation method is characterized in that,

the water drain valve device comprises a power device and a push plate, and the push plate is positioned below the water outlet; the power device utilizes fluid as driving force and can apply fluid pressure on the push plate to push the push plate to move between the water outlet and the bottom of the water drainage channel.

2. The drain valve apparatus according to claim 1,

the push plate is a buoyant member and is configured to move upwardly under buoyancy to a position proximate the drain opening.

3. The drain valve apparatus according to claim 2,

the water discharge valve device further comprises a piston assembly and an installation cylinder with an opening at the bottom, the installation cylinder can be movably arranged in the water tank and can seal the water discharge port, an installation cylinder inlet is formed in the installation cylinder, and the piston assembly can be slidably arranged in the installation cylinder in a penetrating mode and is connected with the push plate;

under the action of fluid pressure at the inlet of the installation cylinder, the installation cylinder can be pushed to move upwards to open the water outlet, and the piston assembly can be pushed to drive the push plate to move downwards.

4. The drain valve apparatus of claim 3,

the top of the mounting cylinder is also provided with a one-way exhaust valve.

5. The drain valve apparatus according to claim 3,

the piston assembly comprises a piston and a connecting rod which are connected up and down, and the lower end of the connecting rod is connected with the push plate; the upper portion of piston has the bulge loop of outside salient, the outer wall of bulge loop is close to the inner wall setting of installation section of thick bamboo and leave the clearance between the two, installation section of thick bamboo import is located the top of bulge loop.

6. The drain valve apparatus according to claim 3,

and a floater is arranged on the piston assembly and/or the push plate.

7. The drain valve apparatus of claim 3,

the bottom of the installation cylinder is provided with an extension ring in an outward protruding mode, and the bottom face of the extension ring is provided with an installation cylinder sealing ring.

8. The drain valve apparatus according to claim 7,

and an installation barrel limiting part is fixedly arranged in the water tank and above the water outlet and used for limiting the extension ring.

9. The drain valve apparatus according to claim 7,

and a plurality of notches are formed in the side wall of the bottom of the mounting cylinder and below the extension ring.

10. The drain valve apparatus of claim 3,

and a piston limiting part is arranged in the mounting cylinder and below the inlet of the mounting cylinder and used for limiting the piston assembly.

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