CN111336255A

CN111336255A - Multifunctional valve structure

Info

Publication number: CN111336255A
Application number: CN202010150827.6A
Authority: CN
Inventors: 陈炯亮; 霍达文; 何国豪
Original assignee: GUANGDONG YONGQUAN VALVE TECHNOLOGY CO LTD
Current assignee: GUANGDONG YONGQUAN VALVE TECHNOLOGY CO LTD
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-06-26
Anticipated expiration: 2040-03-06
Also published as: CN111336255B

Abstract

The invention discloses a multifunctional valve structure, which is provided with a pre-acting valve seat, a drip valve and a valve diaphragm internally provided with a disc spring; the components such as the two-way drain valve have realized the set of a plurality of functions, have realized multi-functionally promptly. The invention realizes effective reduction of the installation space required by the valve and multifunctional integration by optimizing the valve structure; the valve provided by the invention has the advantages of flattening, multiple applicable scenes, multiple functional combination modes, relatively low cost and high part universality.

Description

Multifunctional valve structure

Technical Field

The invention relates to the field of fire-fighting water valves; in particular to a multifunctional valve structure.

Background

With the advancement of fire fighting technology, the requirements associated with valves for fire water are also increasing. The valve, as shown in patent CN201520937247.6, generally comprises a valve body, various functional probes, a valve flap, and a spring for pressing the valve flap against the water inlet to seal the water inlet. However, most of the existing valves are special valves, and the universality is poor; the main reason is that the existing valve needs large installation volume; each valve has relatively few functions to be integrated, and the functions of the corresponding valves are difficult to recombine to meet the needs.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a multifunctional valve structure, and the multifunctional valve structure is optimized, so that the mounting space required by a valve is effectively reduced, the advantages of pre-acting function, water leakage detection function of a drip valve, water drainage recovery function, flattening of the valve and the like are integrated, the applicable scene of the valve is enhanced, and the multifunctional on-demand combination mode is realized.

The purpose of the invention can be achieved by adopting the following technical scheme:

a multi-function valve structure comprising: the valve comprises a valve body, a valve cover, a valve seat and a diaphragm;

the valve body is internally provided with an accommodating cavity, and the accommodating cavity comprises a water inlet, a water outlet and a water through hole for communicating the water inlet and the water outlet; a valve seat is embedded in the water through hole; the valve body is provided with an early warning channel;

the membrane flap is arranged in the accommodating cavity and used for controlling the opening and closing of the water through hole;

the valve comprises a valve diaphragm, a valve main body and a sealing ring; the bottom of the valve body is provided with a sealing ring which is abutted against the valve seat to form sealing to close the water flow through hole; or the sealing ring is separated from the valve seat, so that the water flow through hole is opened; the valve diaphragm is arranged on the top of the diaphragm main body and clamped between the valve cover and the valve body, so that the valve diaphragm and the valve cover form a closed control cavity; the method comprises the following steps: a diaphragm body, a disc spring; the diaphragm body is flexible and is in a dish shape; the disc spring is overlapped with the diaphragm body and fixedly connected with the diaphragm body to form a layered structure;

the upper surface of the valve seat is a sealing surface; the valve seat is provided with an early warning water flow through hole; one opening of the early warning water through hole is arranged on the sealing surface of the valve seat, and the other opening of the early warning water through hole is communicated with the early warning channel.

Preferably, the sealing surface is provided with a first annular groove, and the early warning water flow hole is communicated with the first annular groove.

Preferably, the side of the valve seat is provided with a second annular groove, and the second annular groove is respectively communicated with the early warning water flow through hole and the early warning channel.

Preferably, the lower surface of the outer edge of the valve seat is provided with a fourth annular groove for installing a sealing ring; the side surface of the valve seat and the lower surface of the outer edge of the valve seat are abutted to the valve body to form sealing, so that the second annular groove and the valve body form a closed channel.

Preferably, the early warning channel is communicated with an alarm bell.

Preferably, the early warning water flow through holes are provided with a plurality of water flow through holes, one end of each early warning water flow through hole is communicated with the first annular groove, and the other end of each early warning water flow through hole is communicated with the second annular groove.

Preferably, the diaphragm body comprises an outer ring, a connecting ring and an inner ring which are connected in sequence; the connecting ring is in a circular truncated cone shape; the inner diameter of the outer ring is larger than the outer diameter of the inner ring; the shape of the disc spring is the same as that of the diaphragm body.

Preferably, a drip valve is further included; the drip valve includes: the device comprises a shell, a base, a return spring and a sealing element; the shell is of a hollow tubular structure; the bottom of the shell is fixedly connected with the base, and the upper part of the shell is communicated with a valve to be detected; the base is provided with a collecting tank for collecting dripping water; one end of the return spring is fixedly connected with the base, and the other end of the return spring is abutted against the sealing element; a first gap is formed between the sealing element and the shell; a second gap is formed between the sealing element and the top of the collecting groove; the collecting groove is communicated with the outside, and the collecting groove, the second gap and the first gap are sequentially communicated; the sealing element can move towards the collecting tank under the action of water pressure and close the second gap, the communication between the first gap and the collecting tank is blocked, and sealing is achieved, or the sealing element can be far away from the collecting tank under the action of the elastic force of the reset spring and open the second gap to achieve the communication between the first gap and the collecting tank; one end of the drip valve, which is far away from the base, is fixedly connected with the valve body, and the drip valve is communicated with the inner cavity of the valve body.

Preferably, the drip valve further comprises a cap, a guide rod; the sealing piece is arranged at the bottom of the cap; the guide rod is arranged in the collecting tank and is pivoted with the base, so that the guide rod can penetrate through the base and slide along the length direction of the guide rod; the reset spring is sleeved on the guide rod; the guide rod is fixedly connected with the sealing element.

Preferably, the valve structure further comprises a two-way drain ball valve; the bidirectional drainage ball valve comprises two water inlets and a water outlet; one water inlet of the bidirectional drainage ball valve is communicated with the water inlet of the valve body, and the other water inlet of the bidirectional drainage ball valve is communicated with the water outlet of the valve body; the water outlet of the bidirectional drainage ball valve is communicated with a drainage pipeline for drainage; the bidirectional drainage ball valve also comprises a ball valve body and a ball opening and closing piece; the ball opening and closing piece is embedded in the accommodating cavity of the ball valve body and is tightly matched with the inner wall of the accommodating cavity; the ball body opening and closing piece is provided with a gap or a through hole for communicating or closing the water inlet and the water outlet.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the early warning water flow through holes are formed in the valve seat, and the opening and closing of the through holes are uniformly controlled by the diaphragm for controlling water flow, so that when a fire disaster happens and the diaphragm is opened, the early warning water flow through holes are also opened to guide water flow, and pre-action warning is realized. The scheme provided by the invention has the advantages of simplicity, reliability and low manufacturing cost.

2. The diaphragm with the built-in disc spring is adopted, and the traditional spiral spring is not used, so that the thickness of the valve can be effectively reduced, the space required by installation is reduced, and the maintenance and the installation are very convenient. Because the elasticity and the opening degree of the disk spring are in S-shaped correlation curves, when the diaphragm is opened to a larger caliber, smaller water pressure is relatively needed, the opening degree of the water inlet is maximized, and larger flow speed is realized.

3. According to the drip valve and the valve thereof, the drip valve is arranged, so that the valve leaks out of the drip valve when water leaks, detection is timely obtained, and the phenomenon that water is accumulated at a water outlet and drops to a spray head to wet indoor objects is avoided; and in case of fire, the water dropping valve can be automatically closed due to water pressure overload, so that disaster relief water supply is not influenced.

Drawings

FIG. 1 is a schematic view of the valve construction;

FIG. 2 is a cross-sectional view of the valve in a closed state;

FIG. 3 is a cross-sectional view of the valve in an open state;

FIG. 4 is a schematic view of the valve seat structure;

FIG. 5 illustrates a cross-sectional view of the valve seat;

FIG. 6 is a schematic view of the valve structure;

FIG. 7 is a cross-sectional view of the valve;

FIG. 8 is an enlarged view of area C of FIG. 7;

FIG. 9 is a schematic view of a drip valve in use mounted on a valve;

fig. 10 is a sectional view showing an opened state of the drip valve;

fig. 11 is a sectional view showing a closed state of the drip valve;

figure 12 is an exploded view of the flap;

FIG. 13 is a cross-sectional view of the flap;

FIG. 14 is an enlarged view of area A in FIG. 13;

FIG. 15 is a graph of disc spring opening versus spring closing force;

FIG. 16 is a graph of coil spring opening versus spring closing force;

FIG. 17 is a schematic view of the structure of a multi-function valve equipped with a two-way ball drain valve;

FIG. 18 is a schematic view of a three-state structure of a bi-directional drain ball valve and a sectional view thereof;

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1:

as shown in fig. 1-3, a valve structure comprises a valve body 2, a valve cover 3, and a diaphragm 1; the diaphragm 1 is arranged in the cavity of the valve body 2, the diaphragm 1 is clamped between the valve body 2 of the valve cover 3, so that a control cavity 30 is formed between the diaphragm 1 and the valve cover 3; the spring that pushes the flap 1 to move can be a disc spring on the flap 1 or a coil spring between the flap 1 and the valve cover 3 so that the flap 1 blocks the inlet 10 and the outlet 20. The working principle of the embodiment is as follows; when water is injected into the control chamber 30 and the water inlet 10, the valve 1 is closed due to the action of the water pressure and the pressure of the spring on the valve 1; when the water pressure is less than the elastic force of the spring, the closing function can be independently completed by the spring; when a fire occurs, the pressure of the water outlet 20 is relieved, and the control cavity 30 can be arranged to be communicated with the water outlet 20, or the control cavity 30 can be arranged to be controlled by other devices, such as intelligent electric control and the like, so that the water pressure of the control cavity 30 is reduced, a pressure difference is formed between the water inlet 10 and the water outlet 20, the membrane valve 1 is flushed away under the action of the water pressure, and the water is enabled to pass from the water inlet 10 to the water outlet 20 through the water through hole 23.

Example 2

As shown in fig. 1 to 8, a multi-functional valve structure includes: the valve comprises a valve body 2, a valve cover 3, a valve seat 4 and a valve flap 1;

an accommodating cavity is arranged in the valve body 2, and comprises a water inlet 10, a water outlet 20 and a water through hole 23 for communicating the water inlet 10 and the water outlet 20; the valve seat 4 is embedded in the water through hole 23; the valve body 2 is provided with an early warning channel 22;

the valve 1 is arranged in the accommodating cavity and used for controlling the opening and closing of the water flow through hole 23;

the bottom of the valve flap 1 is provided with a sealing ring 13, and the sealing ring 13 is abutted against the valve seat 4 to form sealing to close the water flowing through hole 23; or the sealing ring 13 is separated from the valve seat 4, so that the water flowing through hole 23 is opened;

the upper surface of the valve seat 4 is a sealing surface, namely an abutting surface with the sealing ring 13; the valve seat 4 is provided with an early warning water flow through hole 41; one opening of the early warning water flow hole 41 is arranged on the sealing surface of the valve seat 4, and the other opening is communicated with the early warning channel 22. In the present embodiment, the valve has the same operation mechanism as that of the valve in embodiment 1; the specific difference lies in that when the valve 1 is opened, because the opening of the early warning water flow through hole 41 is arranged on the sealing surface, when the valve 1 is opened, the opening of the early warning water flow through hole 41 can be realized, and at the moment, the presoaking channel communicated with the valve obtains water flow or water pressure, so that an alarm can be awakened, and the pre-acting alarm function is realized.

In a preferred embodiment, the sealing surface is provided with a first annular groove 42, and the early warning water flow hole 41 communicates with the first annular groove 42. And a second annular groove 43 is formed in the side surface of the valve seat 4, and the second annular groove 43 is respectively communicated with the early warning water flow through hole 41 and the early warning channel 22. The early warning water flow holes 41 are provided with a plurality of water flow holes, one end of each early warning water flow hole 41 is communicated with the first annular groove 42, and the other end of each early warning water flow hole is communicated with the second annular groove 43. The first annular groove 42 is arranged, the plurality of early warning water flow through holes 41 are arranged, so that sealing is easier, and the second annular groove 43 is arranged for collecting water flow flowing into each early warning water flow through hole 41, so that the water flow quantity and the water pressure are ensured; meanwhile, the second annular groove 43 is arranged, so that the early warning water flow through hole 41 in the valve seat 4 is more conveniently communicated with the early warning channel 22, specific alignment installation is not needed, and the installation difficulty is reduced.

In a preferred embodiment, the side of the valve seat 4 is provided with a third annular groove 44, and the third annular groove 44 is used for installing a sealing ring 46. An early warning sleeve 221 is arranged in the early warning channel 22. The bushing 221 made of a non-rusting material, such as stainless steel, can prevent rusting in the hole due to difficulty in rust prevention or blockage due to rusting; a fourth annular groove 45 for installing a sealing ring 46 is arranged on the lower surface of the outer edge of the valve seat 4; the side surface of the valve seat 4 and the lower surface of the outer edge of the valve seat 4 are abutted against the valve body 2 and form a seal, so that the second annular groove 43 forms a closed passage with the valve body 2. The early warning channel is communicated with an alarm bell 5, can rapidly give an alarm, and can also be communicated with other alarm devices, such as a water flow detector and the like, to realize the alarm.

Example 3

A drip valve 7 as shown in fig. 1-11 comprises: a housing 71, a base 72, a return spring 73, a seal 74; the housing 71 is a hollow tubular structure; the bottom of the shell 71 is fixedly connected with a base 72, and the upper part of the shell 71 is communicated with a valve to be detected; the particular housing 71 communicates with the internal cavity 24; the base 72 includes a collecting tank 721 for collecting the dripping water; one end of the return spring 73 is fixedly connected with the base 72, and the other end of the return spring is abutted against the sealing element 74; a first gap 742 is arranged between the sealing element 74 and the shell 71; a second gap 741 is formed between the sealing element 74 and the top of the collecting tank 721; the collecting groove 721 is communicated with the outside, and the collecting groove 721, the second gap 741 and the first gap are communicated according to 742 times; the sealing member 74 can move toward the collecting tank 721 under the force of the water pressure and close the second gap 741, blocking the communication of the first gap 742 with the collecting tank 721, achieving sealing, or the sealing member 74 can move away from the collecting tank 721 under the elastic force of the return spring 73 and open the second gap 741 to achieve the communication of the first gap 742 with the collecting tank 721. The drip valve 7 provided by the invention is suitable for a control valve matched with a deluge valve lock, if the valve flap 1 leaks water, the water flow is smoothly discharged from the first gap 742 due to small water flow, and the valve is prevented from leaking water to a spray head; secondly, the problems of aging and the like of the valve can be effectively monitored; if the fire is happened, the flap 1 is opened, the inner cavity 24 is filled with water and the water pressure is high, so that the water flow is large, and the water flow can not pass through the first gap 742 smoothly, at this time, the water pressure acts on the top of the sealing element 74, the return spring 73 is compressed, so that the sealing element 74 moves downwards to close the second gap 741 to block the water flow; the water flow supply in case of fire is ensured.

As a preferred embodiment: the drip valve 7 further comprises a cap 75; the seal 74 is mounted on the bottom of the cap 75. The provision of the cap 75 can effectively enhance the strength of the seal 74 against deformation.

As a preferred embodiment; the drip valve 7 further comprises a guide rod 76; the guide rod 76 is arranged in the collecting tank 721, and the guide rod 76 is pivoted with the base 72 so that the guide rod 76 can pass through the base 72 and slide along the length direction of the guide rod 76; the return spring 73 is sleeved on the guide rod 76; the guide rod 76 is fixedly connected to the seal 74.

In a preferred embodiment, a partition 711 is disposed on the housing 71, and a through hole for communicating a valve to be detected with the first gap 742 is disposed on the partition 711; the guide bar 76 is movably inserted into the partition 711.

The present embodiment further provides a valve, comprising the drip valve 7, the valve body 2, the flap 1, and the valve cover 3;

the valve comprises a valve main body 12, a valve diaphragm 11 and a sealing ring 13; the valve diaphragm 11 is arranged at the upper end of the diaphragm main body 12; the sealing ring 13 is arranged at the lower end of the valve body 12; so that the valve diaphragm 11, the diaphragm main body 12 and the sealing ring 13 are in a layered structure;

the valve cover 3 is fixedly arranged on the top of the valve body 2 and is enclosed with the valve body 2 to form an inner cavity 24; the valve flap 1 is arranged in the inner cavity 24 of the valve body 2; the valve diaphragm 11 is clamped between the valve cover 3 and the valve body 2; the valve body 2 further comprises a water inlet 10 and a water outlet 20; the water inlet 10 is communicated with an inner cavity 24 through a water through hole 23; the inner cavity 24 is communicated with the water outlet 20; the sealing ring 13 of the membrane valve 1 is abutted against the upper edge of the water through hole 23 to realize the sealing and closing of the water through hole 23, or the sealing ring 13 deviates from the water through hole 23 to enable the water inlet 10 to be communicated with the water outlet 20;

one end of the drip valve 7 far away from the base 72 is fixedly connected with the valve body 2, and the drip valve 7 is communicated with the inner cavity 24 of the valve body 2.

Example 4

As shown in fig. 1-3, 12-16, a valve 1; the method comprises the following steps: a valve body 12, an upper pressure plate 16, a valve diaphragm 11, a sealing ring 13 and a lower pressure plate 17; the upper pressure plate 16, the valve diaphragm 11 and the diaphragm main body 12 are sequentially overlapped, and the upper pressure plate 16 is fixedly connected with the diaphragm main body 12, so that the valve diaphragm 11 is clamped between the upper pressure plate 16 and the diaphragm main body 12; the flap main body 12, the sealing ring 13 and the lower pressing plate 17 are sequentially arranged in an overlapping mode, and the lower pressing plate 17 is fixedly connected with the flap main body 12, so that the sealing ring 13 is clamped between the lower pressing plate 17 and the flap main body 12. This embodiment can make lamella 1 easy dismouting when the maintenance through the lamella 1 that sets up this structure, and this structure can effectual reduction whole valve's thickness moreover, is convenient for engineering installation and saves installation space.

In a preferred embodiment, the upper pressure plate 16 and the valve body 12 are fixedly connected by bolts 15. The lower pressure plate 17 is fixedly connected with the valve body 12 through bolts 15. The installation strength can be ensured by directly connecting the bolt 15 with the screw hole 14 on the valve body 12 in a threaded manner, and meanwhile, the maintenance in the later period is facilitated.

As a preferred embodiment, the valve membrane 11 comprises: a diaphragm body 112, a disc spring 111; the diaphragm body 112 is flexible, and the diaphragm body 112 is dish-shaped; the diaphragm body 112 may be made of a flexible material such as rubber; the disc spring 111 is overlapped and fixedly connected with the diaphragm body 112 to form a laminated structure. The embodiment provides a brand new valve diaphragm 11, and as the disc spring 111 is arranged in the valve diaphragm 11, the whole valve does not need to use a traditional spiral spring, so that the whole thickness of the valve is reduced, and the later-stage installation is facilitated; as can be seen from fig. 15 and 16, the elastic force of the conventional coil spring (the cylindrical compression spring shown in the figures) is linearly related to the length, which directly results in that when the opening degree of the valve needs to be larger, a very large water pressure is required, thereby easily causing the water flow to be unsmooth; the disk spring 111 (the inner spring plate shown in the figure) has an S-shaped spring force curve, and therefore, a pressure required to achieve a desired opening degree is small to some extent. For example, at an opening degree of 40%, the required spring force (closing force in the drawing) of the disc spring 111 is less than 40%, and at the same opening degree, the coil spring is more than 40%.

In a preferred embodiment, the diaphragm body 112 includes an outer ring 1121, a connecting ring 1122, and an inner ring 1123 connected in sequence; the connecting ring 1122 is in a circular truncated cone shape; the inner diameter of outer ring 1121 is greater than the outer diameter of inner ring 1123; the disc spring 111 is the same shape as the diaphragm body 112.

In a preferred embodiment, a through hole is formed between the diaphragm body 112 and the disc spring 111. The through holes are provided to facilitate the installation of the valve body 12 through the valve membrane 11, while the use of the disc spring 111 with holes is more suitable for the valve structure described in this embodiment.

In a preferred embodiment, the disc spring 111 is completely covered by the diaphragm body 112. The disk spring 111 is completely coated to prevent the disk spring from being rusted, thereby being beneficial to prolonging the service life

Example 5

As shown in fig. 1-3 and 17-18, a multi-functional valve equipped with a two-way drain ball valve comprises: the valve comprises a valve body 2, a valve cover 3, a diaphragm 1 and a bidirectional drainage ball valve 6; a drain pipe (not shown);

an accommodating cavity is arranged in the valve body 2, and comprises a water inlet 10, a water outlet 20 and a water through hole 23 for communicating the water inlet 10 and the water outlet 20; the valve 1 is arranged in the accommodating cavity, and the valve 1 is used for controlling the opening and closing of the water through hole 23; the valve cover 3 and the valve membrane 11 form a closed control chamber 30. The control chamber 30 communicates with the water inlet 10; so that the water pressure of the control chamber 30 and the pressure of the belleville spring 111 together control the opening and closing of the diaphragm 1. When a fire occurs, the spray header sprays water to release pressure, so that the water pressure of the water outlet 20 is reduced, the control cavity 30 is triggered to release the pressure, the water pressure of the water inlet 10 flushes the membrane valve 1 under the action of pressure difference, and the communication between the water inlet 10 and the water outlet 20 is realized. In practical applications, the pressure difference provided by the control chamber 30 is not a requirement, and a spring can be directly mounted on the valve 1 to realize the switch, as described in embodiment 1.

The bottom of the valve 1 is provided with a sealing ring 13, and the sealing ring 13 is abutted against the edge of the upper surface of the water through hole 23 to form sealing to close the water through hole 23; or the sealing ring 13 is separated from the edge of the upper surface of the flow through hole 23, so that the flow through hole 23 is opened;

the bidirectional drain ball valve 6 comprises two water inlets 62 and a drain port 61; one water inlet 62 of the bidirectional drainage ball valve 6 is communicated with the water inlet 10 of the valve body 2, and the other water inlet 62 is communicated with the water outlet 20 of the valve body; the water outlet 61 of the bidirectional water drainage ball valve 6 is communicated with a water drainage pipeline.

In a preferred embodiment, the two-way drain ball valve 6 further comprises a ball valve body 65, a ball opening and closing member 63; the ball opening and closing piece 63 is embedded in the accommodating cavity of the ball valve body 65 and is tightly matched with the inner wall of the accommodating cavity; the ball opening and closing member 63 is provided with a notch 64 for communicating or closing the water inlet 62 and the water outlet 61. Specifically, as shown in fig. 18, in the state D, when the notch 64 extends beyond the left side water inlet 62, the spherical shutter 63 simultaneously closes the water outlet 61 and the right side water inlet 62; when the ball shutter 63 is rotated to the state E shown in fig. 18, that is, rotated 90 degrees counterclockwise, the notch 64 communicates the left water inlet 62 with the water outlet 61, and the water is discharged from the side where the left water inlet 62 communicates, for example, when the left water inlet 62 communicates with the water inlet 10, the water is discharged from the water inlet 10. If the bidirectional drain ball valve 6 is rotated counterclockwise by about 90 degrees from the state E to be in the state F as shown in fig. 18, the right water inlet 62 and the drain port 61 are communicated with each other, and the communication pipe of the right water inlet 62 is drained. Because the bidirectional drain ball valve 6 is arranged in the embodiment, the same set of drain pipe can be used for draining water at the water inlet 10 and the water outlet 20, and other valve structures are not required to be added, so that the cost is saved.

In a preferred embodiment, said two-way drain ball valve 6 is provided with a handle 66 for controlling the ball shutter 63; the handle 66 extends lengthwise in the same direction as the opening of the notch 64. As shown in fig. 18, this arrangement enables the handle 66 to be pushed to which side water intake port 62 to achieve which side water discharge, reducing the learning cost. Also, as a preferred embodiment, the notch 64 of the present embodiment may be replaced by a through hole (not shown) provided on the ball shutter 63, and the through hole can communicate the water inlet 62 and the water outlet 61 at one end by rotating the ball shutter 63.

Various other changes and modifications to the above-described embodiments and concepts will become apparent to those skilled in the art from the above description, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.

Claims

1. A multi-function valve structure, comprising: the valve comprises a valve body, a valve cover, a valve seat and a diaphragm;

2. The multi-functional valve structure of claim 1, wherein: the sealing surface is provided with a first annular groove, and the early warning water flow through hole is communicated with the first annular groove.

3. The multi-functional valve structure of claim 2, wherein: and a second annular groove is formed in the side surface of the valve seat and is respectively communicated with the early warning water flow through hole and the early warning channel.

4. The multi-functional valve structure of claim 3, wherein: a fourth annular groove for installing a sealing ring is formed in the lower surface of the outer edge of the valve seat; the side surface of the valve seat and the lower surface of the outer edge of the valve seat are abutted to the valve body to form sealing, so that the second annular groove and the valve body form a closed channel.

5. The multi-functional valve structure of claim 1, wherein: the early warning channel is communicated with an alarm bell.

6. The multi-functional valve structure of claim 3, wherein: the early warning rivers through-hole is provided with a plurality of, and every early warning rivers through-hole's one end and first annular groove intercommunication, the other end and second annular groove intercommunication.

7. The multi-functional valve structure of claim 1, wherein: the diaphragm body comprises an outer ring, a connecting ring and an inner ring which are connected in sequence; the connecting ring is in a circular truncated cone shape; the inner diameter of the outer ring is larger than the outer diameter of the inner ring; the shape of the disc spring is the same as that of the diaphragm body.

8. The multi-functional valve structure of claim 1, wherein: also comprises a water dropping valve; the drip valve includes: the device comprises a shell, a base, a return spring and a sealing element; the shell is of a hollow tubular structure; the bottom of the shell is fixedly connected with the base, and the upper part of the shell is communicated with a valve to be detected; the base is provided with a collecting tank for collecting dripping water; one end of the return spring is fixedly connected with the base, and the other end of the return spring is abutted against the sealing element; a first gap is formed between the sealing element and the shell; a second gap is formed between the sealing element and the top of the collecting groove; the collecting groove is communicated with the outside, and the collecting groove, the second gap and the first gap are sequentially communicated; the sealing element can move towards the collecting tank under the action of water pressure and close the second gap, the communication between the first gap and the collecting tank is blocked, and sealing is achieved, or the sealing element can be far away from the collecting tank under the action of the elastic force of the reset spring and open the second gap to achieve the communication between the first gap and the collecting tank; one end of the drip valve, which is far away from the base, is fixedly connected with the valve body, and the drip valve is communicated with the inner cavity of the valve body.

9. The multi-functional valve structure of claim 8, wherein: the drip valve also comprises a cover cap and a guide rod; the sealing piece is arranged at the bottom of the cap; the guide rod is arranged in the collecting tank and is pivoted with the base, so that the guide rod can penetrate through the base and slide along the length direction of the guide rod; the reset spring is sleeved on the guide rod; the guide rod is fixedly connected with the sealing element.

10. The multi-functional valve structure of claim 8, wherein: the device also comprises a bidirectional drainage ball valve; the bidirectional drainage ball valve comprises two water inlets and a water outlet; one water inlet of the bidirectional drainage ball valve is communicated with the water inlet of the valve body, and the other water inlet of the bidirectional drainage ball valve is communicated with the water outlet of the valve body; the water outlet of the bidirectional drainage ball valve is communicated with a drainage pipeline for drainage; the bidirectional drainage ball valve also comprises a ball valve body and a ball opening and closing piece; the ball opening and closing piece is embedded in the accommodating cavity of the ball valve body and is tightly matched with the inner wall of the accommodating cavity; the ball body opening and closing piece is provided with a gap or a through hole for communicating or closing the water inlet and the water outlet.