阅读说明：本技术 一种自来水防冻水龙头 (Antifreezing tap for running water ) 是由 叶新 刘军 于 2021-08-30 设计创作，主要内容包括：本发明公开了一种自来水防冻水龙头,位于冻土层以下的防冻阀,防冻阀连接有一延长杆,所述延长杆端部位于地面以上；防冻阀包括两端开口的阀体管道；通过位于冻土层以下的防冻阀,可以使阀门处的水不会冻住,通过延长杆延伸至地面以上,可以通过转动延长杆,从地面以上进行控制；延长杆旋转,使得第一阀体打开或关闭,当第一阀体旋转到打开位置时第二阀体与所述排水口形成闭合,当所述第一阀体旋转到关闭时所述第二阀体与所述排水口形成打开状态；旋动延长杆关闭后,防冻阀以上的水管内的水通过排水口流出,防止将水管冻住,从而实现水龙头的防冻,使用完后只需排出管道中的水,相比定时排水或加热的方式,大大减小了资源的浪费。(The invention discloses a tap water anti-freezing faucet, which is characterized in that an anti-freezing valve is positioned below a frozen soil layer, the anti-freezing valve is connected with an extension rod, and the end part of the extension rod is positioned above the ground; the antifreezing valve comprises a valve body pipeline with openings at two ends; the water at the valve can not be frozen through the anti-freezing valve positioned below the frozen soil layer, the extension rod extends to the ground, and the water can be controlled from the ground through rotating the extension rod; the extension rod rotates to enable the first valve body to be opened or closed, the second valve body is closed with the water outlet when the first valve body rotates to the opening position, and the second valve body is opened with the water outlet when the first valve body rotates to be closed; after the extension rod is rotated to be closed, water in the water pipe above the anti-freezing valve flows out through the water outlet to prevent the water pipe from being frozen, so that the anti-freezing of the faucet is realized, and after the faucet is used, the water in the pipeline only needs to be discharged.)

1. The tap water antifreezing faucet is characterized in that an antifreezing valve (1) is positioned below a frozen soil layer, the antifreezing valve (1) is connected with an extension rod (3), and the end part of the extension rod (3) is positioned above the ground; the anti-freezing valve (1) comprises a valve body pipeline (8) with openings at two ends; one end of the valve body pipeline (8) is provided with a water inlet (9), and the other end is provided with a water outlet (10); the water inlet (9) is provided with a threaded connecting piece (7), and the threaded connecting piece (7) is used for being communicated with a tap water pipe; the water outlet (10) is connected with an extension water pipe (2), and the extension water pipe (2) extends to the ground; the extension water pipe (2), the extension rod (3) and the valve body channel are coaxially arranged, the extension rod (3) is positioned in the extension water pipe (2), the top of the extension water pipe (2) is provided with a rotating part, and the rotating part is connected with the extension rod (3); the side wall of the extension water pipe (2) is communicated with a water outlet pipeline (6);

a first valve body and a second valve body are arranged in the valve body pipeline (8), and the first valve body and the second valve body are opened and closed through rotation of the extension rod (3); one end of the first valve body, which is close to the water inlet (9), rotates the extension rod (3) to open or close the first valve body and control the on-off of the water inlet; a water outlet (23) is arranged on the side wall of the valve body pipeline (8), the water outlet (23) is positioned between the first valve body and the second valve body, the second valve body is in contact connection with the water outlet (23), the extension rod (3) rotates and controls the second valve body to rotate, when the first valve body rotates to an open position, the second valve body and the water outlet (23) form a closed state, and when the first valve body rotates to a closed state, the second valve body and the water outlet (23) form an open state.

2. The tap water antifreeze faucet of claim 1, wherein the screwing component comprises a cap body (4), a handle (5) is connected to the cap body (4), and the cap body (4) is detachably connected with the extension rod (3).

3. The tap water antifreezing faucet according to claim 2, wherein a positioning member (35) is disposed at a top of the extension water pipe (2), and the positioning member (35) is hermetically disposed with the extension water pipe (2); the top of the extension rod (3) is connected with a rotating shaft (36), and the center of the top of the positioning piece (35) is provided with a shaft hole; the rotating shaft (36) penetrates through the shaft hole, and the cap body (4) is installed at the top end of the rotating shaft (36).

4. The tap water antifreezing faucet according to claim 1, wherein the first valve body comprises a first ceramic plate (11) and a second ceramic plate (12), the first ceramic plate (11) and the second ceramic plate (12) are both circular, the planes of the first ceramic plate (11) and the second ceramic plate (12) are perpendicular to the axis of the valve body pipeline (8), a positioning protrusion (30) is disposed at the edge of the first ceramic plate (11), and a positioning groove (31) which is matched with the positioning protrusion (30) is disposed on the inner wall of the valve body pipeline (8); the first ceramic piece (11) and the second ceramic piece are both provided with a first water through hole (34); the first ceramic piece (11) and the second ceramic piece (12) are arranged in a contact manner; the second ceramic plate (12) is connected with a first connecting piece, and the first connecting piece is connected with the extension rod (3).

5. The tap water antifreezing faucet according to claim 4, wherein the first connecting member comprises a U-shaped clamping portion (13) with a downward opening, a connecting shaft (16) is disposed above the U-shaped clamping portion (13), clamping grooves (29) are symmetrically disposed at the upper end of the second ceramic plate (12), clamping protrusions (28) are disposed at two end portions of the U-shaped clamping portion (13), the clamping protrusions (28) are matched with the clamping grooves (29), and the connecting shaft (16) is connected with the extension rod (3).

6. The tap water anti-freezing faucet as claimed in claim 5, wherein the second valve body comprises a first valve plate (17) and a second valve plate (18), the first valve plate (17) and the second valve plate (18) are both circular, the plane of the first valve plate (17) and the plane of the second valve plate (18) are perpendicular to the axis of the valve body pipeline (8), the first valve plate (17) and the second valve plate (18) are provided with second through holes (19), and the first valve plate (17) and the second valve plate (18) are arranged in a contact manner; the first valve plate (17) is fixedly arranged inside the valve body pipeline (8), through holes are formed in the middle parts of the first valve plate (17) and the second valve plate (18), a connecting pipe (20) is arranged in the middle part of the second valve plate (18), and a water passing gap is formed between the connecting pipe (20) and the valve body pipeline (8); the connecting pipe (20) is connected with the extension rod (3); the connecting shaft (16) penetrates through the through hole, is positioned on the connecting pipe (20), and is connected with the extension rod (3); the first valve plate (17) is provided with a first water drainage through hole (25), the second valve plate (18) is provided with a second water drainage through hole (26), a water drainage channel (24) is arranged inside the valve body pipeline (8), the lower end of the water drainage channel (24) is communicated with the water drainage port (23), and the upper end of the water drainage channel (24) is communicated with the first water drainage through hole (25); when the first valve body is closed, the first water drainage through hole is aligned and communicated with the second water drainage through hole (26); when the first valve body is opened, the first water discharge through hole (25) and the second water discharge through hole (26) are staggered to form a closed state.

7. The tap water antifreezing faucet of claim 6, wherein the connecting tube (20) is symmetrically provided with first notches at an upper end thereof, the connecting shaft (16) is transversely provided with a pin hole (27), a pin (21) is disposed in the pin hole (27), two ends of the pin (21) are located at the first notches (32), and the connecting tube (20) is sleeved with a spring (22) at an outer periphery thereof; the lower end of the spring (22) abuts against the upper end of the second valve plate (18), and the upper end of the spring (22) abuts against two ends of the bolt (21).

8. The tap water antifreezing faucet of claim 7, wherein the extension rod (3) is a hollow tube, the lower end of the extension rod is symmetrically provided with a second notch (33), a gap is formed between the connecting shaft (16) and the connecting pipe (20), and the lower end of the extension rod (3) is located at the gap between the connecting shaft (16) and the connecting pipe (20) and is sleeved on the connecting shaft (16); the bolt (21) is positioned in the second notch (33).

9. The tap water anti-freezing faucet of claim 8, wherein the extension rod (3), the latch (21), the connecting pipe (20), the first valve plate (17), the second valve plate (18) and the spring (22) are all made of stainless steel.

Technical Field

The invention belongs to the technical field of anti-freezing faucets, and particularly relates to a tap water anti-freezing faucet.

Background

The water outlet of the tap water pipeline is generally exposed above the ground, and when winter comes, the pipeline at the water outlet part is easy to freeze and freeze, so that the use is inconvenient. The existing antifreezing valve mainly adopts a built-in temperature sensor, can accurately sense water temperature, and can be opened and closed without any power supply. With the reduction of the ambient temperature, the anti-freezing valve is opened when the water temperature is close to the freezing point, and the low-temperature water in the system is rapidly discharged. When the water temperature rises to a set value, the pressure antifreezing valve is closed, and the water drainage is stopped. This process will be cycled as needed to minimize the amount of water drained by the system while preventing freezing. The tap water anti-freezing faucet needs to drain water to realize anti-freezing, and waste of water resources is caused. Secondly, the other method is to heat the external water pipe by using an electric heating mode to prevent freezing, and the energy waste is caused by the anti-freezing mode.

Disclosure of Invention

The invention aims to provide a tap water anti-freezing faucet, which solves the problem that the existing anti-freezing faucet wastes resources.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a tap water antifreezing faucet, which is characterized in that an antifreezing valve is positioned below a frozen soil layer, the antifreezing valve is connected with an extension rod, and the end part of the extension rod is positioned above the ground; the antifreezing valve comprises a valve body pipeline with openings at two ends; one end of the valve body pipeline is a water inlet, and the other end of the valve body pipeline is a water outlet; the water inlet is provided with a threaded connecting piece which is used for being communicated with a tap water pipe; the water outlet is connected with an extension water pipe, and the extension water pipe extends to the ground and is provided with an opening; the extension water pipe is positioned on the axis of the valve body pipeline and is coaxially connected with the pipeline, and a rotating part is arranged at the top of the extension water pipe; the side wall of the extension water pipe is communicated with a water outlet pipeline;

a first valve body and a second valve body are arranged in the valve body pipeline, and the first valve body and the second valve body are opened and closed through rotation of the extension rod; one end of the first valve body, which is close to the water inlet, is provided with an extension rod which rotates to open or close the first valve body and control the on-off of the water inlet; the side wall of the valve body pipeline is provided with a water outlet which is positioned between the first valve body and the second valve body, the second valve body is in contact connection with the water outlet, the extension rod rotates and controls the second valve body to rotate, when the first valve body rotates to an open position, the second valve body and the water outlet are closed, and when the first valve body rotates to a closed position, the second valve body and the water outlet are opened.

According to the technology, the water at the valve can not be frozen through the anti-freezing valve below the frozen soil layer, the extension rod extends to the ground, and the water can be controlled from the ground through rotating the extension rod; the extension rod rotates to enable the first valve body to be opened or closed to control the on-off of water inlet, when the first valve body rotates to an opening position, the second valve body is closed with the water outlet, and when the first valve body rotates to be closed, the second valve body is opened with the water outlet; after the water receiving is completed, the rotating extension rod is closed, water in the water pipe above the anti-freezing valve flows out through the water outlet, the water pipe is prevented from being frozen, the anti-freezing effect of the faucet is achieved, and after the faucet is used, water in the water pipe only needs to be discharged, and compared with a mode of timing water discharging or heating, the waste of resources is greatly reduced.

In one possible design, the rotating means may comprise a handle attached to the cap, the cap being removably attached to the extension pole. The handle is convenient to rotate.

In one possible design, a positioning piece is arranged at the top of the extension water pipe, and the positioning piece and the extension water pipe are arranged in a sealing manner; the top of the extension rod is connected with a rotating shaft, and the center of the top of the positioning piece is provided with a shaft hole; the rotating shaft penetrates through the shaft hole, and the cap body is installed at the top end of the rotating shaft. Through the positioning piece, the long rod keeps the same axis when rotating, and the stability of the long rod when rotating is improved.

In one possible design, the first valve body comprises a first ceramic piece and a second ceramic piece, the first ceramic piece and the second ceramic piece are both circular, the planes of the first ceramic piece and the second ceramic piece are vertical to the axis of the valve body pipeline, a positioning bulge is arranged at the edge of the first ceramic piece, and a positioning groove matched with the positioning bulge is arranged on the inner wall of the valve body pipeline; the first ceramic piece and the second ceramic piece are both provided with a first limber hole; the first ceramic plate and the second ceramic plate are arranged in a contact manner; the second ceramic plate is connected with a first connecting piece, and the first connecting piece is connected with the extension rod. The two ceramic plates are used as the first valve body, so that the ceramic plates are durable and cannot rust.

In one possible design, the first connecting piece comprises a U-shaped clamping portion with a downward opening, a connecting shaft is arranged above the U-shaped clamping portion, clamping grooves are symmetrically formed in the upper end of the second ceramic piece, two end portions of the U-shaped clamping portion are matched with the clamping grooves, and the connecting shaft is connected with the extension rod.

In one possible design, the second valve body comprises a first valve plate and a second valve plate, the first valve plate and the second valve plate are both circular, the plane where the first valve plate and the second valve plate are located is perpendicular to the axis of the valve body pipeline, second through holes are formed in the first valve plate and the second valve plate, and the first valve plate and the second valve plate are arranged in a contact mode; the first valve plate is fixedly arranged inside the valve body pipeline, through holes are formed in the middle parts of the first valve plate and the second valve plate, a connecting pipe is arranged in the middle part of the second valve plate, and a water passing gap is formed between the connecting pipe and the valve body pipeline; the connecting pipe is connected with the extension rod; the connecting shaft penetrates through the through hole, is positioned on the connecting pipe and is then connected with the extension rod; the first valve plate is provided with a first water drainage through hole, the second valve plate is provided with a second water drainage through hole, a water drainage channel is arranged in the valve body pipeline, the lower end of the water drainage channel is communicated with the water drainage port, and the upper end of the water drainage channel is communicated with the first water drainage through hole; when the first valve body is closed, the first water drainage through hole is communicated with the second water drainage through hole in an aligned mode; when the first valve body is opened, the first water drainage through hole and the second water drainage through hole are closed in a staggered mode. By the technology, the second valve body is used for shutting off and opening the drainage; the opening of the shutoff of the first valve body and the second valve body is controlled simultaneously by the rotation of the extension rod, and the use is convenient.

In one possible design, first notches are symmetrically formed in the upper end of the connecting pipe, a bolt hole is transversely formed in the connecting shaft, a bolt is arranged in the bolt hole, two ends of the bolt are located at the first notches, and a spring is sleeved on the periphery of the connecting pipe; the lower end of the spring is abutted against the upper end of the second valve plate, and the upper end of the spring is abutted against two ends of the bolt. Through the arrangement of the bolt, the connection of the extension rod and the first connecting piece of the first valve body is realized, and meanwhile, the extension rod and the connecting piece of the second valve body are connected, so that the simultaneous control is realized; through setting up the spring for the first valve block of second valve body and the contact of second valve block are inseparabler, and the wash port leaks when preventing first valve body from leading to water.

In one possible design, the extension rod is a hollow tube, the lower end of the extension rod is symmetrically provided with second notches, a gap is formed between the connecting shaft and the connecting pipe, and the lower end of the extension rod is positioned in the gap between the connecting shaft and the connecting pipe and is sleeved on the connecting shaft; the bolt is located in the second notch. Through the technology, the extension rod is connected with the first valve body and the second valve body, and simultaneous control is realized.

In one possible design, the extension rod, the plug, the connecting pipe, the first valve plate, the second valve plate and the spring are all made of stainless steel. Adopts stainless steel to avoid rusting and prolong the service life

Has the advantages that:

1. according to the tap water anti-freezing faucet provided by the invention, water at the valve can not be frozen through the anti-freezing valve positioned below the frozen soil layer, the tap water anti-freezing faucet extends to the ground through the extension rod, and can be controlled from the ground through rotating the extension rod; the extension rod rotates to enable the first valve body to be opened or closed to control the on-off of water inlet, when the first valve body rotates to an opening position, the second valve body is closed with the water outlet, and when the first valve body rotates to be closed, the second valve body is opened with the water outlet; after the water receiving is finished and the extension rod is rotated and closed, water in the water pipe above the anti-freezing valve flows out through the water outlet to prevent the water pipe from being frozen, so that the anti-freezing of the faucet is realized; after the water-saving water heater is used, only water in the pipeline needs to be discharged, and compared with a timing water discharging or heating mode, the water-saving water heater greatly reduces resource waste.

2. According to the tap water anti-freezing faucet provided by the invention, the extension rod is connected with the first connecting piece of the first valve body through the bolt, and is simultaneously connected with the connecting pipe of the second valve body, so that simultaneous control is realized; the spring is arranged, so that the first valve plate and the second valve plate of the second valve body are in closer contact, and water leakage of the drain hole is prevented when water flows through the first valve body; moreover, the implementation mode is convenient to produce.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic structural diagram of an integral antifreeze tap for tap water provided by the invention;

FIG. 2 is a schematic diagram of an internal structure of an anti-freezing valve of an anti-freezing tap for tap water according to the present invention;

FIG. 3 is a schematic structural diagram of a first valve body in an anti-freezing valve of a tap water anti-freezing faucet provided by the invention;

FIG. 4 is a schematic structural diagram of a first valve plate of a second valve body in an anti-freezing valve of a tap water anti-freezing faucet provided by the invention;

FIG. 5 is a schematic top view illustrating a second valve plate of a second valve body of an antifreeze valve for an antifreeze faucet of tap water according to the present invention;

FIG. 6 is a schematic side view of a second valve plate of a second valve body of an antifreeze valve for an antifreeze faucet for tap water according to the present invention;

FIG. 7 is a bottom view of a valve body pipe of an anti-freezing valve of an anti-freezing faucet for tap water provided by the present invention;

FIG. 8 is a schematic view of the internal structure of the rotating member of the antifreeze faucet for supplying tap water according to the present invention;

fig. 9 is a schematic structural view of a rotating shaft of a rotating component of an anti-freezing tap for tap water according to the present invention.

The reference numbers in the figures are:

1-an anti-freezing valve, 2-an extension water pipe, 3-an extension rod, 4-a cap body, 5-a handle, 6-a water outlet pipe, 7-a threaded connecting piece, 8-a valve body pipe, 9-a water inlet, 10-a water outlet, 11-a first ceramic piece, 12-a second ceramic piece, 13-a U-shaped clamping part, 14-a limiting piece, 15-a limiting plate, 16-a connecting shaft, 17-a first valve piece, 18-a second valve piece, 19-a second through hole, 20-a connecting pipe, 21-a bolt, 22-a spring, 23-a water outlet, 24-a water discharge channel, 25-a first water discharge through hole, 26-a second water discharge through hole, 27-a bolt hole, 28-a clamping protrusion, 29-a clamping groove and 30-a positioning protrusion, 31-a positioning groove, 32-a first notch, 33-a second notch, 34-a first water through hole, 35-a positioning piece, 36-a rotating shaft, 37-a third notch, 38-a pin, 39-a second sealing ring, 40-a second positioning disc, 41-an inner hexagonal cover, 42-a sleeve, 43-a first sealing ring and 44-a first positioning disc.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms.

As shown in fig. 1 and 2, the antifreeze faucet for tap water according to the first aspect of the present invention includes an antifreeze valve 1 located below a frozen soil layer, wherein the antifreeze valve 1 is connected to an extension rod 3, and an end of the extension rod 3 is located above the ground; the antifreezing valve 1 comprises a valve body pipeline 8 with two open ends; one end of the valve body pipeline 8 is provided with a water inlet 9, and the other end is provided with a water outlet 10; the water inlet 9 is provided with a threaded connecting piece 7, and the threaded connecting piece 7 is used for being communicated with a tap water pipe; the water outlet 10 is connected with an extension water pipe 2, and the extension water pipe 2 extends to the ground; the extension water pipe 2, the extension rod 3 and the valve body channel are coaxially arranged, the extension rod 3 is positioned in the extension water pipe 2, the top of the extension water pipe 2 is provided with a rotating part, and the rotating part is connected with the extension rod 3; the side wall of the extension water pipe 2 is communicated with a water outlet pipeline 6; a first valve body and a second valve body are arranged in the valve body pipeline 8, and the first valve body and the second valve body are opened and closed through rotation of the extension rod 3; one end of the first valve body, which is close to the water inlet 9, rotates the extension rod 3 to open or close the first valve body and control the on-off of the water inlet; a water outlet 23 is arranged on the side wall of the valve body pipeline 8, the water outlet 23 is positioned between the first valve body and the second valve body, the second valve body is in contact connection with the water outlet 23, the extension rod 3 rotates and controls the second valve body to rotate, when the first valve body rotates to an open position, the second valve body and the water outlet 23 form a closed state, and when the first valve body rotates to a closed state, the second valve body and the water outlet 23 form an open state.

In a possible embodiment, as shown in fig. 1, the screwing means comprises a cap 4, a handle 5 is connected to the cap 4, and the cap 4 is detachably connected to the extension rod 3. As shown in fig. 8, a positioning member 35 is disposed at the top of the extension water pipe 2, and the positioning member 35 is hermetically disposed with the extension water pipe 2; the top of the extension rod 3 is connected with a rotating shaft 36, and the center of the top of the positioning piece 35 is provided with a shaft hole; the rotating shaft 36 penetrates through the shaft hole, and the cap body 4 is mounted at the top end of the rotating shaft 36.

As an example, as shown in fig. 8 and 9, the screwing means includes a cap 4, a positioning member 35 and a screwing shaft 36, the positioning member 35 is used for connecting the extension water pipe 2; the center of the top of the positioning piece 35 is provided with a shaft hole; the rotating shaft 36 penetrates through the shaft hole, and the cap body 4 is installed at the top end of the rotating shaft 36; the cap body 4 is connected with a handle 5, and the cap body 4 is matched and detachably connected with a rotating shaft 36; the lower end of the rotating shaft 36 is connected with an extension rod 3 of the anti-freezing water tap. The positioning piece 35 comprises a first positioning disc 44, the diameter of the first positioning disc 44 is larger than the outer diameter of the extension water pipe 2 to be connected, a sleeve 42 is arranged below the first positioning disc 44, and threads are arranged on the surface of the sleeve 42; the sleeve 42 is screwed to the extension water pipe 2. The first positioning disk 44 is hexagonal. A second positioning plate 40 is further arranged at the upper end of the first positioning plate 44, the diameter of the second positioning plate 40 is smaller than that of the first positioning plate 44, and the diameter of the second positioning plate 40 is simultaneously smaller than the inner diameter of the cap body 4. The top of the sleeve 42 is sleeved with a first sealing ring 43. The lower end of the rotating shaft 36 is horizontally provided with a pin 38, and the pin 38 is used for being matched and connected with the extension rod 3. The top of the rotating shaft 36 is a hexagonal prism, and an inner hexagonal cover 41 matched with the hexagonal prism is socially arranged inside the cap body 4. At least one second sealing ring 39 is sleeved on the part of the rotating shaft 36, which is in contact with the positioning piece 35. The positioning piece 35 is made of stainless steel or copper; the rotating shaft 36 is made of stainless steel or copper.

In a possible embodiment, as shown in fig. 2, the first valve body includes a first ceramic sheet 11 and a second ceramic sheet 12, the first ceramic sheet 11 and the second ceramic sheet 12 are both circular, the plane where the first ceramic sheet 11 and the second ceramic sheet 12 are located is perpendicular to the axis of the valve body pipeline 8, a positioning protrusion 30 is arranged at the edge of the first ceramic sheet 11, and a positioning groove 31 matched with the positioning protrusion 30 is arranged on the inner wall of the valve body pipeline 8; the first ceramic piece 11 and the second ceramic piece are both provided with a first water through hole 34; the first ceramic plate 11 and the second ceramic plate 12 are arranged in a contact manner; the second ceramic plate 12 is connected with a first connecting piece, and the first connecting piece is connected with the extension rod 3. Specifically, as shown in fig. 3, the first connecting member includes a U-shaped clamping portion 13 with a downward opening, a connecting shaft 16 is disposed above the U-shaped clamping portion 13, clamping grooves 29 are symmetrically disposed at the upper end of the second ceramic plate 12, clamping protrusions 28 are disposed at two end portions of the U-shaped clamping portion 13, the clamping protrusions 28 are matched with the clamping grooves 29, and the connecting shaft 16 is connected with the extension rod 3.

In a possible embodiment, as shown in fig. 2, 4, 5 and 6, the second valve body includes a first valve sheet 17 and a second valve sheet 18, the first valve sheet 17 and the second valve sheet 18 are both circular, a plane where the first valve sheet 17 and the second valve sheet 18 are located is perpendicular to an axis of the valve body pipe 8, the first valve sheet 17 and the second valve sheet 18 are provided with a second through hole 19, and the first valve sheet 17 and the second valve sheet 18 are arranged in contact; the first valve plate 17 is fixedly arranged inside the valve body pipeline 8, through holes are formed in the middle of the first valve plate 17 and the middle of the second valve plate 18, a connecting pipe 20 is arranged in the middle of the second valve plate 18, and a water passing gap is formed between the connecting pipe 20 and the valve body pipeline 8; the connecting pipe 20 is connected with the extension rod 3; the connecting shaft 16 penetrates through the through hole, is positioned on the connecting pipe 20, and is connected with the extension rod 3; the first valve plate 17 is provided with a first water discharge through hole 25, the second valve plate 18 is provided with a second water discharge through hole 26, a water discharge channel 24 is arranged in the valve body pipeline 8, the lower end of the water discharge channel 24 is communicated with the water discharge port 23, and the upper end of the water discharge channel 24 is communicated with the first water discharge through hole 25; the first drain through hole is in aligned communication with the second drain through hole 26 when the first valve body is closed; when the first valve body is opened, the first drain through hole 25 and the second drain through hole 26 are staggered to form a closed state.

In a possible embodiment, as shown in fig. 2, first notches are symmetrically arranged at the upper end of the connecting pipe 20, a pin hole 27 is transversely arranged on the connecting shaft 16, a pin 21 is arranged in the pin hole 27, two ends of the pin 21 are located at the first notches 32, and a spring 22 is sleeved on the outer periphery of the connecting pipe 20; the lower end of the spring 22 abuts against the upper end of the second valve plate 18, and the upper end of the spring 22 abuts against the two ends of the bolt 21.

In a possible embodiment, the extension rod is a hollow tube, the lower end of the extension rod is symmetrically provided with second notches 33, a gap is formed between the connecting shaft 16 and the connecting pipe 20, and the lower end of the extension rod is located at the gap between the connecting shaft 16 and the connecting pipe 20 and is sleeved on the connecting shaft 16; the latch 21 is located in the second notch 33. In use, as shown in fig. 2 and 7, a limiting member 14 is disposed on an inner wall of the valve body pipe 8, the limiting member 14 is located in the U-shaped clamping portion 13, and the limiting member 14 limits a rotation range of the first connecting member to 90 degrees; a limiting disc 15 is arranged on the inner wall of the valve body pipeline 8; the plane of the limiting disc 15 is vertical to the axis of the valve body pipeline 8; a water through hole is formed in the limiting disc 15; the middle part of the limiting disc 15 is provided with a through hole, the connecting shaft 16 penetrates through the limiting disc 15, and the limiting disc 15 is positioned above the U-shaped clamping part 13.

In one possible embodiment, the extension rod 3, the latch 21, the connection pipe 20, the first valve plate 17, the second valve plate 18 and the spring 22 are all made of stainless steel.

Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.