CN102620012B - Delay shutoff valve - Google Patents

Abstract

The invention provides a time-delay closing valve, which comprises a valve body with openings at both ends, a hollow transmission seat is rotatably arranged in the upper port of the valve body, and a moving piece is arranged under the transmission seat, and the moving piece and A volume chamber for water flow is formed between the transmission seats, a central water outlet is arranged on the moving piece, a fixed piece with a central water outlet is arranged under the moving piece, and a valve cover is arranged under the fixed piece; A hollow connecting piece is fixed inside the transmission seat, the upper part of the connecting piece extends out of the transmission seat, and is fixedly inserted in the lower cover, and a transmission shaft unit is slidably arranged in the connecting piece with a V-shaped sealing ring. The upper part of the transmission shaft unit is fixedly connected with an upper cover, and a spring is interposed between the upper cover and the lower cover, and the lower part of the transmission shaft unit protrudes downward from the water outlet of the movable piece. The delayed closing valve provided by the invention not only has the function of delayed closing, but also can regulate the temperature and flow of water flow.

Description

A delayed closing valve

technical field

The invention relates to a valve, in particular to a time delay closing valve.

Background technique

Now, time-delay shut-off valves are widely used in public places such as public toilets, stations, hotels, etc. On the one hand, they can effectively save water. It is very convenient to operate without having to touch the faucet with your hands. Just disclose a kind of time-delay valve as CN2733129Y, it comprises the valve body of belt inlet, outlet, and the baffle plate of separating water inlet and outlet and the time-delay cavity of controlling water discharge time are arranged in the valve body, and the middle of baffle plate is provided with through hole A floating body is installed in the delay chamber through the through hole, a valve core is installed above the floating body, and a water diversion groove is opened on the inner side wall of the delay chamber and at the matching place with the floating body. However, the existing time-delay valves generally only have time-delay performance, but cannot adjust the flow and temperature, and they cannot make corresponding adjustments according to climate changes and changes in the use environment. Therefore, even in the cold winter, it is still necessary to use Hand washing in cold water, the design is not humane enough.

Contents of the invention

The present invention provides a delayed closing valve to solve the above-mentioned problems in the prior art. The delayed closing valve provided by the invention not only has the function of delayed closing, but also can regulate the temperature and flow of water flow.

Technical scheme of the present invention is as follows:

A time-delay closing valve, comprising a valve body with openings at both ends, characterized in that: a hollow transmission seat is rotatably arranged in the upper port of the valve body, and a sealing ring is arranged under the transmission seat to fix it A connected moving piece, a volume chamber for water flow in is formed between the moving piece and the transmission seat, a centrally located water outlet communicated with the volume chamber is provided on the moving piece, and a certain A piece, which is used to switch cold water, hot water or mixed water to flow into the volume chamber after being matched with the moving piece. The fixed piece is provided with a water outlet of the fixed piece corresponding to the water outlet of the moving piece; a hollow connecting piece is fixed in the transmission seat. The upper part of the hollow connector protrudes from the transmission seat and is fixedly inserted in the lower cover. A transmission shaft unit is slidably arranged in the hollow connector with a V-shaped sealing ring, and the upper part of the transmission shaft unit protrudes from the outside the hollow connecting piece, and fixedly connected with an upper cover, a spring is interposed between the upper cover and the lower cover, and the lower part of the transmission shaft unit protrudes downward from the water outlet of the movable piece, which is sleeved A sealing ring abuts upwards under the water outlet of the moving piece; the water outlet of the fixed piece includes a groove corresponding to the water outlet of the moving piece, and the lower part of the transmission shaft unit extends into the groove after moving downward. In the groove, the upper part of the groove is provided with an opening for water to flow out, and the opening is connected with a water outlet hole, and the water outlet hole extends outward and downward to the bottom surface of the stator; the lower part of the stator is provided with a sealing ring a valve cover.

Turn the lower cover, the lower cover drives the hollow connecting piece and the transmission seat to rotate, and then drives the moving piece to rotate, so that the water inlet on the moving piece corresponds to the hot water inlet of the fixed piece, or corresponds to the cold water inlet of the fixed piece, or corresponds to the fixed piece at the same time Hot water inlet and fixed piece cold water inlet, like this, can realize choosing cold water inlet, hot water inlet, or mixed water inlet, and can adjust the size of cold and hot water inlet according to the situation.

When in use, press the upper cover downwards. At this time, the upper cover drives the transmission shaft unit downwards to leave the water outlet of the moving piece and extend into the water outlet of the fixed piece. At this time, the water flows from the water inlet of the valve cover (hot water inlet and/or cold water inlet), the stator water inlet (hot water inlet and/or cold water inlet) flows into the volume cavity, and then flows from the rotor outlet into the groove of the stator outlet, and then flows into the outlet hole from the opening, and then It flows from the water outlet hole to the water outlet of the valve cover; loosen the upper cover, and the upper cover will return upward under the action of the spring, but due to the resistance of the water flow, the recovery speed of the upper cover is slower, and the lower part of the drive shaft unit will be against the moving shaft again. When the water outlet is opened, the valve body is automatically closed (the whole process is generally 5 to 10 seconds).

In a preferred embodiment, the moving piece is sealed with the end surface of the fixed piece, and the moving piece also includes an eccentrically arranged water inlet, and the fixed piece is provided with a hot water inlet corresponding to the water inlet of the moving piece individually or jointly. Water inlet and a cold water inlet, the bonnet hot water inlet, bonnet cold water inlet and bonnet water outlet connected to the fixed piece hot water inlet, the fixed piece cold water inlet and the fixed piece water outlet are set on the bonnet.

In a recommended embodiment, for ease of installation, the transmission shaft unit is composed of a transmission upper shaft and a transmission lower shaft that are screwed together, and the transmission upper shaft is inserted into the hollow connecting piece at the interval of the V-shaped sealing ring Inside, the lower end of the transmission lower shaft is sheathed with a sealing ring and abuts against the lower part of the water outlet of the moving plate.

In a preferred embodiment, the transmission shaft unit is a transmission shaft.

In a preferred embodiment, the inner wall of the hollow connector is provided with a groove for placing a V-shaped sealing ring, so as to prevent the V-shaped sealing ring from sliding up and down following the drive shaft unit.

In a recommended embodiment, the upper and lower parts of the outer wall of the hollow connector are provided with external splines, the inner wall of the transmission seat is provided with internal splines, and the transmission seat and the hollow connector are matched by internal and external splines For fixed connection, similarly, the inner wall of the lower cover is also provided with internal splines, and the lower cover and the hollow connector are fixedly connected through the cooperation of internal and external splines.

In a preferred embodiment, the moving piece and the fixed piece are ceramic pieces.

The "up" and "down" involved in the present invention refer to the direction in which the time-delay shut-off valve is placed in normal use, that is, the position of the upper cover is the upper part, and the position of the valve cover is the lower part.

As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following characteristics:

1) The delay closing valve provided by the present invention changes the basic mechanism of the existing delay faucet, and sets the valve body hot water inlet, cold water inlet and valve body water outlet at the valve cover at the same time, so that it can use the moving plate and The stator adjusts the water flow, so that it not only has the function of delay closing, but also can adjust the temperature and flow of the water flow;

2) In the present invention, the transmission shaft unit is composed of a transmission upper shaft and a transmission lower shaft connected by threads, which can facilitate the installation of the delayed closing valve.

Description of drawings

Fig. 1 is a three-dimensional state diagram of a time delay closing valve;

Figure 2 is an exploded view (up and down) of the delayed closing valve;

Figure 3 is an exploded view of the delayed closing valve (inclined direction);

Fig. 4 is a cross-sectional view of the delayed closing valve in the closed state;

Fig. 5 is a cross-sectional view of the delay closing valve in an open state.

Detailed ways

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

A time delay closing valve, comprising a valve body 1 with both ends open, as shown in Figure 1, Figure 2 and Figure 3, a hollow transmission seat 2 is rotatably set in the upper port of the valve body 1, the A ceramic rotor 3 fixedly connected to it is arranged under the transmission seat 2 at a distance from the sealing ring, and a volume chamber 21 for water flow inflow is formed between the ceramic rotor 3 and the transmission seat 2, as shown in Fig. 4 and Fig. 5 As shown in , the ceramic moving piece 3 is provided with a central water outlet 31 and an eccentric water inlet 32 communicating with the volume chamber 21 , and a ceramic ceramic sealing end surface is arranged under the ceramic moving piece 3 . The fixed piece 4, the ceramic fixed piece 4 is provided with a hot water inlet 42 and a cold water inlet 43 respectively or jointly corresponding to the water inlet 32 of the moving piece, and a water outlet 41 of the fixed piece corresponding to the water outlet 31 of the moving piece, The bottom of the fixed piece 4 is provided with a bonnet 5 at an interval sealing ring, and the bonnet 5 is provided with a bonnet hot water inlet 52, which is connected to the fixed piece hot water inlet 42, the fixed piece cold water inlet 43 and the fixed piece water outlet 41 one by one. Valve cover cold water inlet 53 and valve cover water outlet 51.

A hollow connector 6 is fixed inside the transmission seat 2, and external splines are arranged on the upper and lower parts of the outer wall of the hollow connector 6. The upper part of the hollow connector 6 protrudes from the transmission seat 2 and is fixedly inserted on an inner wall. In the lower cover 7 with internal splines, the lower cover 7 and the upper part of the hollow connector 6 are fixedly connected through the cooperation of internal and external splines, the inner wall of the transmission seat 2 is provided with internal splines, the transmission seat 2 and The lower part of the hollow connector 6 is fixedly connected through the cooperation of the inner and outer splines.

A transmission upper shaft 81 is slidably provided at the interval of the V-shaped sealing ring in the hollow connecting part 6, and a groove for placing the V-shaped sealing ring is arranged on the inner wall of the hollow connecting part 6, so as to prevent the V-shaped sealing ring from following the transmission. Upper shaft 81 slides up and down.

The transmission upper shaft 81 protrudes upwards out of the hollow connector 6 and is fixedly connected with an upper cover 9 , and a spring 91 is interposed between the upper cover 9 and the lower cover 7 .

The transmission upper shaft 81 is threadedly connected with a transmission lower shaft 82 , and the transmission lower shaft 82 extends downwards from the water outlet 31 of the moving plate 3 , and its lower end is sheathed with a sealing ring and then abuts against the water outlet 31 of the moving plate upwards.

The water outlet 41 of the fixed piece includes a groove 411 corresponding to the water outlet 31 of the moving piece, which is used for the lower transmission shaft 82 to extend into. 412 is connected with a water outlet hole 413 , and the water outlet hole 413 extends outward and downward to the bottom surface of the stator 4 , as shown in FIG. 4 and FIG. 5 .

As shown in Fig. 4 and Fig. 5, when the lower cover 7 is rotated, the lower cover drives the hollow connecting piece 6 and the transmission seat 2 to rotate, and then drives the moving piece 3 to rotate, so that the water inlet 32 on the moving piece 3 or corresponding to the heat of the fixed piece Water inlet 42, or corresponding to fixed sheet cold water inlet 43, or corresponding to fixed sheet hot water inlet 42 and fixed sheet cold water inlet 43 simultaneously, like this, can realize choosing cold water inlet, hot water inlet, or mixed water inlet, and The amount of cold and hot water can be adjusted according to the situation.

When in use, press the upper cover 9 downwards. At this time, the upper cover 9 drives the transmission upper shaft 81 and the transmission lower shaft 82 to move downward, and the lower end of the transmission lower shaft 82 leaves the water outlet 31 of the moving piece and extends into the water outlet of the fixed piece. 41, at this time, the water flow flows into the volume cavity 21 from the valve cover water inlet (hot water inlet 52 and/or cold water inlet 53), the stator water inlet (hot water inlet 42 and/or cold water inlet 43), and then from The moving piece water outlet 31 flows into the groove 411 of the fixed piece water outlet 41, then flows into the water outlet hole 413 from the opening 412, and then flows into the valve cover water outlet 51 from the water outlet hole 413; loosen the upper cover 9, and the upper cover 9 It returns upward under the action of the spring 91, but due to the resistance of the water flow, the recovery speed of the upper cover 9 is relatively slow, and when the lower part of the transmission lower shaft 82 abuts against the water outlet 31 of the moving plate again, the valve body is automatically closed (the whole process Generally 5 to 10 seconds).

The above-mentioned embodiment is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above-mentioned embodiment, and any other changes, modifications, substitutions, combinations, Simplifications should be equivalent replacement methods, and all are included in the protection scope of the present invention.

Claims (7)

1. A time-delay closing valve, comprising a valve body with openings at both ends, characterized in that: a hollow transmission seat is rotatably arranged in the upper port of the valve body, and a sealing ring is arranged below the transmission seat A moving piece fixedly connected to the moving piece forms a volume cavity for water flow in between the moving piece and the transmission seat. A water outlet at the center position communicated with the volume cavity is arranged on the moving piece. The lower part of the moving piece Set a certain piece, which is used to switch cold water, hot water or mixed water to flow into the volume cavity after cooperating with the moving piece. The fixed piece is provided with a water outlet of the fixed piece corresponding to the water outlet of the moving piece; a hollow connection is fixed in the transmission seat The upper part of the hollow connecting part protrudes from the transmission seat and is fixedly inserted in the lower cover. A transmission shaft unit is slidably arranged in the hollow connecting part with a V-shaped sealing ring, and the upper part of the transmission shaft unit protrudes Outside the hollow connector, it is fixedly connected with an upper cover, a spring is interposed between the upper cover and the lower cover, and the lower part of the drive shaft unit protrudes downward from the water outlet of the moving piece, which After a sealing ring is sleeved, it abuts upwards under the water outlet of the moving piece; the water outlet of the fixed piece includes a groove corresponding to the water outlet of the moving piece, and the lower part of the transmission shaft unit extends into the In the groove, the upper part of the groove is provided with an opening for water to flow out, and the opening is connected with a water outlet hole, and the water outlet hole extends outward and downward to the bottom surface of the fixed piece; the lower part of the fixed piece is sealed The ring is provided with a valve cover. 2. A time-delay closing valve as claimed in claim 1, characterized in that: the moving piece is sealed with the end face of the fixed piece, the moving piece also includes an eccentric water inlet, and the fixed piece is provided with a A hot water inlet and a cold water inlet respectively or jointly corresponding to the water inlet of the movable piece are provided on the valve cover to connect the hot water inlet of the fixed piece, the cold water inlet of the fixed piece and the water outlet of the fixed piece. , The cold water inlet of the bonnet and the water outlet of the bonnet. 3. A time-delay closing valve as claimed in claim 2, characterized in that: the transmission shaft unit is composed of a transmission upper shaft and a transmission lower shaft screwed together, and the transmission upper shaft is separated by the V A shaped sealing ring is inserted in the hollow connector, and the lower end of the transmission lower shaft is sheathed with a sealing ring and then leans against the lower part of the water outlet of the moving plate. 4. The time-delay closing valve according to claim 2, wherein the transmission shaft unit is a transmission shaft. 5. A time-delay closing valve as claimed in claim 1, 2, 3 or 4, characterized in that: the inner wall of the hollow connector is provided with a groove for placing a V-shaped sealing ring. 6. A time-delay closing valve as claimed in claim 5, characterized in that: the upper and lower parts of the outer wall of the hollow connector are provided with external splines, the inner wall of the transmission seat is provided with internal splines, and the transmission seat The hollow connecting piece is fixedly connected through the cooperation of internal and external splines. Similarly, the inner wall of the lower cover is also provided with internal splines, and the lower cover and the hollow connecting piece are fixedly connected through the cooperation of internal and external splines. 7. A time delay closing valve as claimed in claim 1, 2, 3 or 4, characterized in that: said moving piece and said fixed piece are ceramic pieces.

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