WO2005054732A1

WO2005054732A1 - Multi-controlled water closet valve

Info

Publication number: WO2005054732A1
Application number: PCT/CN2004/001334
Authority: WO
Inventors: Yaohua Qi; Fansun Liu
Original assignee: Yaohua Qi; Fansun Liu
Priority date: 2003-12-04
Filing date: 2004-11-23
Publication date: 2005-06-16

Abstract

This invention provides a multi-controlled water closet valve. Shaft sheath, cross-water flange, reposition spring and piston cylinder with water channel are set in the valve body. A mandrel is installed in the internal hole of the shaft sheath. A handle is connected to the upper end of the shaft sheath, and a float sealing ring is surrounded on the under part of it, and a sealing rubber ring is mounted on the lower end of it. The float sealing is set in the middle hole of the cross-water flange. The piston springily cooperated in the piston cylinder. The water channel on the piston cylinder include out channel and main channel. The out channel is a longitudinal groove formed on the piston. The main channel includes a through hole on the side wall of the upper part of the piston cylinder, and a opening on the top of the cylinder. A guide screw is extend in the internal wall of the cylinder. The surface of the guide is downward. A protruding pin is set on the mandrel vertically. The pin is contacted with the downward surface of the guide slidingly. The valve according to this invention is able to open constantly and auto-close as well. In a word, this invention provide a multi-controlled water closet valve with reliable simple structure and easy for repairing.

Description

Multi-control water-saving valve

[Technical Field]

The present invention relates to a valve and a faucet for controlling water flow, and more particularly, the present invention relates to a water-saving valve and a faucet.

【Background technique】

At present, there are hundreds of ordinary faucets on the market. According to the core structure, there are four types, namely screw faucets, porcelain core faucets, time-delay faucets, and induction faucets. Screw-type faucets have been eliminated because they do not meet water-saving requirements. The other three types of faucets have their own disadvantages: 1. Porcelain-core cutting faucets only have the function of normally open and normally closed, and do not have the time-delay function. , When brushing your teeth), if not closed in time, it is easy to cause waste, and it can not prevent the secondary pollution of the hands; Second, the delay faucet is equipped with a mechanical delay mechanism such as a reset spring inside the valve body to ensure that the faucet or valve is open. It will automatically shut down after time. Although it is hygienic and water-saving, it is inconvenient to press the button many times when using water for a long time. Currently, it is only used in hotels and public places. 3. The sensor faucet is equipped with internal Electronic sensors and actuators. When the electronic sensor detects that the human body is approaching, it instructs the actuator to open the water valve to release water. When the electronic sensor detects that the human body leaves, it instructs the actuator to close the water valve. Although it is convenient, there are many parts and maintenance. Difficult, and more than ten times the price of ordinary faucets is unacceptable to most people. The latter two types of water valves or faucets can to a certain extent avoid the waste of water resources caused by untimely closing the water flow. However, the above two types of water valves or faucets have a common disadvantage: To use water for a long time, the mechanical timing self-closing faucet must be opened multiple times or continuously open. It is very inconvenient and easy to damage the internal machinery. Similarly, the electronic sensor type The faucet or valve requires someone to stand next to it to open it, and the power consumption and leakage safety performance are also an issue. For promotion and application. In other words, so far, no multi-control faucet or valve with a normally open function and a timed close function has been seen on the market.

In terms of water-saving valve doors or faucets, Chinese patent document 98226255 discloses a "dual-control self-closing faucet" with a cylinder core in the valve cavity, and a shutter, a spring, an upper controller, an upper cover, and a shell outside the valve cavity. There is a lower controller outside the body. At least one of the core and the shutter is a magnet. Both the upper controller and the lower controller can move the shutter and compress the spring. When the core is lifted by magnetic force, the valve can be opened to allow water to flow out. The controller can lock the shutter position. Keep running water. It is said that the faucet can realize fast on-off of tap water, save water and consume no electricity, the price is greatly lower than the existing infrared induction faucet, and it can continuously use water, which is very convenient to use. However, although the faucet can be closed automatically and can continuously use water, its structure is complicated.

In addition, the present inventor has a prior patent document 00261116 which discloses "a lever multifunctional water-saving faucet", which mainly includes a lever hinge-shapedly mounted on an inner hole as a spline hole support, and sleeved on the inner hole of the support. The upper and middle ends are a cam sleeve with a spline shaft, a lower end with a flared compression nut sleeved on the outside of the cam sleeve, a ejector rod sleeved in the inner hole of the cam sleeve 4, and sequentially passing through the bore in the cylinder, the spring and the piston limit Orifice restrictor pin. The faucet also includes a normally open, normally closed control device and a time-limited water outlet device, and has a function of normally open, normally closed, and time-limited water outlet. But its control method and structure still need improvement.

[Summary of the Invention]

In view of the above-mentioned shortcomings of the prior art, the technical objective to be achieved by the present invention is to provide a multi-control water-saving valve and a faucet that have a normally open function and a timing close function, have a simple and reliable structure, and are convenient to install and maintain.

To this end, the technical solution of the present invention is a multi-control water-saving valve. The multi-control water-saving valve includes a valve body with a water inlet and a water outlet. The valve body is provided with a shaft sleeve, a water passing flange, and a belt. A piston cylinder of a water channel and a return spring; a mandrel is assembled in an inner hole of the shaft sleeve, and an upper end of the mandrel is connected with a hand A handle, a middle and lower part are sleeved with a movable sealing ring, and a lower end is equipped with a piston and a rubber ring; the water passing flange has a middle hole and a water passing side gap is opened, and the movable sealing ring is open and closed to fit in the water passing The middle hole of the flange; the piston elastically fits in the plug cylinder; the water channel on the piston cylinder includes a gutter and a main water channel, and the gutter is formed on the side wall of the piston cylinder A longitudinal groove, the main water channel includes a through hole in an upper side wall of a piston cylinder and an opening at a top end of the cylinder, and a spirally extending guide is provided along an inner hole wall of the sleeve, and the guide is opposite to the shaft The inner hole wall of the sleeve is a concave or convex structure and has a lower rail surface facing downward; a convex pin is vertically arranged on the mandrel, and the convex pin makes sliding contact with the lower rail surface of the guide rail. The method for setting the spiral extension guide rail in the inner hole of the sleeve of the traditional spring time delay valve by the present invention includes: processing the convex or recessed guide rail directly on the wall surface of the inner hole of the shaft sleeve, or completely A separable guide rail is assembled by means of a structure such as an inner sleeve, or a guide rail formed integrally on the wall surface is combined with the inner sleeve to position the mandrel (as disclosed in the embodiments of the present invention below). The present invention uses the lower rail surface of the guide rail to limit the vertical downward movement of the vertical convex pin on the mandrel, thereby limiting the vertical downward movement of the mandrel, for example: A) By rotating the handle and the mandrel, the convex pin is turned to an ascending angle less Below the lower rail surface of the 45-degree guide rail; theoretically, the vertical component force generated by the spiral with a rising angle less than 45 degrees is greater than the horizontal component force. The vertical component force of the lower rail of the guide rail facing the convex pin has a self-locking limit effect, that is, The pin and mandrel cannot rotate automatically. In practice, the present invention generally selects the rising angle of the lower rail surface to be less than 10-20 degrees according to factors such as the material of the convex pin and the guide rail, the friction coefficient, and the like. At this time, factors such as piston force, spring force, gutter, hydraulic force, etc. The mandrel can't lift and lower, so as to ensure that the lower rail of the guide rail can produce a reliable self-locking. The guide rail surface completely controls the downward displacement of the core axis without changing with time, and realizes the function of normally open and set flow of the valve; Rotate the handle and the mandrel so that the convex pin is turned below the lower rail surface of the guide rail with a rising angle greater than 45 degrees. Theoretically, the horizontal component force generated by a spiral with a lifting angle greater than 45 degrees is greater than the vertical component force. The self-locking limitation of the convex pin is weakened, and the convex pin and the mandrel can automatically rotate and move upward under the action of the horizontal component force; among them, the angle of rise, the length of the rail surface, and the piston Factors such as force, spring force, gutter, hydraulic force, and so on generate a delayed mechanical force, which affects the axial displacement speed; the downward displacement of the axial direction gradually decreases with time until it is completely reset to the highest point of the rail surface. In practice, Normally, the vertical elevation of the control rail is used to realize the fast or slow time delay self-closing function of the valve; C) You can also directly press the handle and the mandrel without rotating them, which is the same as the ordinary single-function time delay closing valve. The limitation of the lower rail surface on the self-locking limit of the convex pin does not exist at all. Among them, only the piston force, spring force, gutter, hydraulic force and other factors affect the delay time and performance. Delayed mechanical forces such as the piston cylinder and the return spring. Under the action of the fixed axis, the downward displacement of the fixed core will gradually decrease with time until it is completely reset to the highest point of the rail surface, and the valve's non-adjustable delayed self-closing function is realized.

As can be seen from the above, although the multi-control water-saving valve and the faucet structure of the present invention are very simple, they have both a normally open function, a fast or 'high speed self-closing function, and a non-adjustable time delay self-closing function. The valve control method is flexible Diverse, reliable control, convenient installation and maintenance.

In order to further strengthen the above-mentioned basic advantages of the present invention, the present invention adopts the following more specific improvement measures: the guide rails are one or two; the two guide rails have respective rising angles, and the two guide rails smoothly intersect at the highest point; the convex The pins are circular or streamlined. The invention refers to the definition of "the angle between the tangent of the helix and the plane perpendicular to the axis as the helix rise angle" in physics, and defines the ascending angle of the guide rail as "the tangent of the guide rail and the plane perpendicular to the central axis of the shaft sleeve" Angle ".

In order to meet the needs of different applications and markets for the combination of control functions, in the valve of the present invention, two guide rails are formed on the inner hole wall of the shaft sleeve, at least one of the guide rails has a gentle rising angle, or the two guide rails have steep Rising angle.

In order to ensure the durability of the valve, reliable and flexible control, and the manufacturing method according to the material, the cross section of the mandrel in the valve of the present invention is circular, and the handle mounting hole and the outer periphery of the upper end of the mandrel correspond to each other. A matching key slot or a tooth slot; the mandrel is one, or the mandrel is formed by butting two sections, and the convex pin is provided on one of the sections. The return spring is interposed in the piston cylinder Between the bottom surface and the bottom end of the mandrel; or the return spring is between the inner top surface of the handle and the end surface of the upper portion of the sleeve; or there are two return springs, one of which is between The inner bottom surface of the piston cylinder body and the bottom end of the mandrel, wherein the other is between the inner top surface of the handle and the end surface of the upper portion of the sleeve.

In order to ensure the durability of the valve, reliable and flexible control, and easy maintenance and replacement of wearing parts in the future, the shaft sleeve in the valve of the present invention includes a tightly matched outer sleeve and an arc-shaped cylindrical inner sleeve. The guide rail is made of metal material, and the guide rail is located at the top of the gap of the inner sleeve; the outer casing is integrally connected with the valve body, or the outer casing has its own sleeve body, which is connected with the sleeve body; The valve bodies are connected by threads.

As an embodiment with better integrity and lower cost, the water passing flange and the piston cylinder of the valve of the present invention are integrally connected to the valve body, and the movable sealing ring is installed on a piston At the upper end of the sleeve, the piston rubber ring is tightly sleeved in a ring groove at the lower portion of the piston sleeve, and the upper end of the piston sleeve is sleeved on a step at the lower end of the mandrel. This embodiment may also adopt a structure in which the return spring is two, one of which is between the inner top surface of the handle and the end surface of the upper portion of the shaft sleeve, and the other is between the inner bottom surface of the piston sleeve Between the lower end of the mandrel and the bottom surface of the mandrel, a seal ring for tightly sealing the annular gap between the shaft sleeves is tightly sleeved on the lower end of the mandrel.

As an embodiment of flexible assembly and easy maintenance, the water passing flange in the valve of the present invention has its own disc body, the piston cylinder has its own cylinder body, the water passing flange body and the sole The cylinder body is pressed and fixed on the valve body by the threaded sleeve body, the movable sealing ring is tightly sleeved in a ring groove of the mandrel, and the piston rubber ring is tightly sleeved in a ring groove under the mandrel. Inside. The side wall around the disk body of the water passing flange is evenly provided with a water backlash. The disk body and the piston cylinder of the water passing flange are made of plastic or metal.

Traditional time-delay valves have a single volume of water. Pressing the handle to discharge 6-8 liters of water at a time is suitable for flushing stools. However, only 1 liter of water is needed to flush urine at a time. Generally speaking, people urinate more often There are many times of stool. If you use 5-6 times per person per day, the traditional time-delay valve wastes about 5-7 liters of water each time, about 30 liters of water is wasted every day, and about one cubic meter of water is wasted every month. The waste is very amazing. With the valve of the present invention, the operating state of the handle is the same as that of the ordinary time delay flush valve, and the water outlet is 6 liters (large amount of water); turning the handle, the time delay is 1 second, and the water outlet is 0.5 to -1 liter, and then automatically closes ( Small amount of water). Can save more than 70% of water. The production cost of the valve of the present invention is equivalent to that of a common flush valve of the same grade, and the water pressure test is higher than Γ. 5 times the national standard, and the water-saving effect is far incomparable with the traditional flush valve.

Hereinafter, the technical solution of the present invention will be further described in combination with specific embodiments and drawings. [Brief Description of the Drawings]

FIG. 1 is a schematic structural diagram of Embodiment 1 of the present invention.

FIG. 2 is a schematic structural diagram of Embodiment 2 of the present invention.

FIG. 3 is a schematic structural diagram of Embodiment 3 of the present invention.

FIG. 4 is a schematic structural diagram of Embodiment 4 of the present invention.

FIG. 5 is a schematic structural diagram of Embodiment 5 of the present invention.

【detailed description】

Example 1

As shown in FIG. 1: A multi-control water-saving valve, the multi-control water-saving valve includes a valve body 20 with a water inlet 10 and a water outlet 15, and a shaft sleeve 30 and a water passing flange are provided in the valve body 20 40. Piston cylinder 50 with water channel and return spring 60; a mandrel 70 is assembled in the shaft sleeve 30, a handle 80 is connected to the upper end of the shaft 70, a movable sealing ring 84 is sleeved at the lower part of the mandrel 70, and a piston 90 is installed at the lower end The rubber ring 85 and the movable seal ring 84 are opened and closed to fit in the 40 hole of the water passing flange, and the piston 90 is elastically matched. Closed in the piston cylinder 50, a fixed sealing ring 75 is provided between the main spindle 70 and the main shaft sleeve 30; the water channel on the piston cylinder 50 includes a drain channel 51 and a main channel, and the drain channel 51 is the piston cylinder 50 A longitudinal groove formed on the side wall. The main water channel includes a through hole 52 in the upper side wall of the piston cylinder 50 and an opening 53 at the top end of the cylinder 50. A spirally extending guide rail 100 is formed along the inner wall of the sleeve 30. 100 has only a lower rail surface facing downward; a convex pin 71 is vertically provided on the spindle 70, and the convex pin 71 makes sliding contact with the lower rail surface of the guide rail 100.

Two inner rails 101 and 102 are formed on the inner wall of the sleeve 30. The two rails 101 and 102 have respective rising angles, and the two rails 101 and 102 intersect smoothly at the highest point. The guide rail 101 has a gentle rising angle and the guide rail 102. Has a steep rising angle. The convex pin 71 has a circular cross section.

A mandrel 70 has a circular cross section, and a cogging groove (not shown in detail) is formed in the mounting hole of the handle 80 and the outer periphery of the upper end of the mandrel 70 correspondingly.

The shaft sleeve 30 includes a metal jacket 31 and a curved cylindrical inner sleeve 32 made of plastic material. The metal jacket '31 has its own sleeve body. The sleeve body 31 and the valve body 20 are connected by threads; the guide rail 100 It is made of metal and is located at the top of the notch 32 of the inner sleeve 32.

The water passing flange 40 has its own disc body, and the piston cylinder 50 has its own cylinder body. The water passing flange body 40 and the independent cylinder body 50 are pressed and fixed to the valve body 20 by a threaded sleeve body 31. The movable seal ring 84 is tightly sleeved in the ring groove 73 of the mandrel 70, and the piston rubber ring 85 is tightly sleeved in the ring groove 74 in the lower part of the mandrel 70.

The side wall 41 around the water passing flange body 40 is evenly provided with a water passing backlash 41; the disk body 40 and the piston cylinder 50 of the water passing flange are made of plastic material.

The return spring 60 is interposed between the inner bottom surface of the piston cylinder 50 and the bottom end of the ring groove 74.

For the valve of this embodiment, pressing, left-handing, and right-handing operations can be used to perform short delay self-closing, slightly longer delay self-closing, and adjustable flow normally open functions, respectively. Example 2

As shown in FIG. 2: A multi-control water-saving valve, the multi-control water-saving valve includes a valve body 20 with a water inlet 10 and a water outlet 15, and a shaft sleeve 30 and a water passing flange are provided in the valve body 20 40. Piston cylinder 50 with water channel and return spring 60; a mandrel 70 is assembled in the inner hole of the shaft sleeve 30, a handle 80 is connected to the upper end of the shaft 70, a movable sealing ring 84 is sleeved on the middle and lower parts, and a lower end is equipped with A piston rubber ring 85 and a movable seal ring 84 are opened and closed to fit in the hole of the water passing flange 40, and a fixed seal ring 75 is provided between the main spindle 70 and the main shaft sleeve 30. The piston 90 is elastically fitted in the piston cylinder 50. The water channel on the piston cylinder 50 includes a drain channel 51 and a main channel. The drain channel 51 is a longitudinal groove formed on the side wall of the piston cylinder 50. The main channel includes A through hole 52 on the upper side wall of the piston cylinder 50 and an opening 53 at the top end of the cylinder block are formed along the inner hole wall of the shaft sleeve 30 with a spirally extending guide rail 100 having a lower rail surface facing downward; a spindle 70 A convex pin 71 is vertically arranged on the upper side, and the convex pin 71 is in sliding contact with the lower rail surface of the guide rail 100.

The guide rails 100 are two 101, 102; the two guide rails 101, 102 have respective rising angles, wherein the guide rails 101, 102 have the same gentle rising angle, and the two guide rails 101, 102 intersect smoothly at the highest point; the convex pin 71 It is a circular cross section.

The mandrel 70 has a circular cross section, and a key groove or a tooth groove corresponding to each other is formed in the mounting hole of the handle 80 corresponding to the outer periphery of the upper end of the mandrel 70.

The shaft sleeve 30 includes a metal outer sleeve 31 and an arc-shaped cylindrical inner sleeve 32 made of plastic. The metal outer sleeve 31 has its own sleeve body. The sleeve body 31 and the valve body 20 are connected by threads. The guide rail 100 is It is made of metal and is located at the top of the notch 32 'of the inner sleeve 32.

The water passing flange 40 has its own unique plate body, and the piston cylinder 50 has its own unique body. The water passing flange body 40 and the independent cylinder 50 are pressed and fixed to the valve body 20 by a threaded sleeve body 31, Movable seal The ring 84 is tightly sleeved in the ring groove 73 of the spindle 70, and the piston rubber ring 85 is tightly sleeved in the ring groove 74 of the lower portion of the spindle 70.

The side wall around the plate body 40 of the water passing flange is evenly provided with a water side gap 41. The plate body 40 and the piston cylinder 50 of the water passing flange are made of plastic material.

The return spring 60 is interposed between the inner bottom surface of the piston cylinder 50 and the bottom end of the ring groove 74. The valve of this embodiment adopts pressing, left-handing and right-handing operations, and can perform the functions of short delay self-closing and slightly longer delay self-closing, respectively. Example 3

As shown in FIG. 3: A multi-control water-saving valve is basically the same as the structure in the first and second embodiments, except that two guide rails 101 are formed on the inner wall of the shaft sleeve 30. And 102, wherein the guide rail 101 has a gentle rising angle, and the guide rail 102 has a vertical rising angle. The disc body 40 and the piston cylinder 50 of the water passing flange are made of a metal material different from the valve partner 20.

The valve of this embodiment is operated by pressing, left-handing and right-handing, and can perform the functions of short-time self-closing and adjustable flow normally open, respectively. Example 4

As shown in FIG. 4: A multi-control water-saving valve includes a valve body 20 with a water inlet 10 and a water outlet 15, and a shaft sleeve 30 and a water passing flange are provided in the wide body 20 40. Piston cylinder 50 with water channel and return spring 60, 60 '; a mandrel 70 is assembled in the inner hole of the shaft sleeve 30, a handle 80 is connected to the upper end of the shaft 70, and a movable sealing ring 84 is sleeved on the middle and lower parts. The lower end is equipped with a piston rubber ring 85, and a movable seal ring 84 is opened and closed to fit into the hole of the water passing flange 40. A fixed seal ring 75 is provided between the main spindle 70 and the main shaft sleeve 30. The piston 90 is elastically fitted to the piston cylinder 50; the water channel on the piston cylinder 50 includes a drain channel 51 and a main channel, the drain channel 51 is a longitudinal groove formed on the side wall of the piston cylinder, and the main channel includes a through hole 52 on the upper side wall of the piston cylinder 50 With the opening 53 at the top end of the cylinder block, a spirally extending guide rail 100 is provided along the inner hole wall of the shaft sleeve 30. The guide rail 100 has only a lower rail surface facing downward; a convex pin 71 and a convex pin are provided vertically on the mandrel 70. 71 makes sliding contact with the lower rail surface of the guide rail 100.

There are two guide rails 100; the two guide rails 101 and 102 have the same gentle rising angle and smoothly intersect at the highest point; the convex pin 71 has a circular cross section.

The mandrel 70 has a circular cross section, and a key groove or a tooth groove corresponding to each other is formed in the mounting hole of the handle 80 and the outer periphery of the upper end of the mandrel 70 correspondingly. '

The shaft sleeve 30 includes a metal outer sleeve 31 and an arc-shaped cylindrical inner sleeve 32 made of plastic. The metal outer sleeve 31 has its own sleeve body, and the sleeve body 31 and the valve body 20 are connected by threads; the guide rail 100 is It is made of metal and is located at the top of the notch 32 'of the inner sleeve 32.

The water passing flange 40 and the piston cylinder 50 are integrally connected to the valve body 20. The water passing flange 40 has an annular water passing side gap 41. A movable seal ring 84 is installed on the upper end of the piston sleeve 90, The piston rubber ring 85 is tightly sleeved in a ring groove 73 ′ at the lower portion of the piston sleeve 90 ′, and the upper end of the piston sleeve 90 ′ is sleeved on the step at the lower end of the spindle 70.

Two return springs 60 and 60 ', wherein the return spring 60' is interposed between the inner top surface of the handle 80 and the upper end surface of the shaft sleeve 70, and the return spring 60 is interposed between the inner bottom surface of the piston sleeve 9 (T and the A sealing ring 86 is tightly sleeved between the bottom surface of the lower end step of the mandrel 70 and the ring gap between the shaft sleeves.

The valve of this embodiment adopts pressing, left-handing and right-handing operations, and can perform the functions of short-time delay self-closing and adjustable flow normally-open respectively. Example 5

As shown in FIG. 5: A multi-control water-saving valve includes a valve body 20 with a water inlet 10 and a water outlet 15, and a main shaft sleeve 30 and an auxiliary shaft sleeve 30 are provided in the valve body 20 ', Water-passing flange 40, water-piston piston cylinder 50, and upper and lower return springs 60, 60'; a lower mandrel 70 with a circular cross section is assembled in the inner hole of the main shaft sleeve 30, and the auxiliary shaft sleeve 3 ( An upper mandrel 70, with a circular cross section, is assembled in the inner hole of the T, and the upper and lower mandrels 70, 70 are concentrically butted. The upper mandrel 70 is screw-connected with a pressing handle 80 'at the upper end, and the lower step 72 is sleeved on the auxiliary shaft. The lower end of the sleeve 30 'is below the step opening 31'; the movable seal ring 84 is opened and closed to fit in the hole in the water passing flange 40, and the side wall around the disk body 40 of the water passing flange is evenly opened with water passing therethrough. The backlash 41; the piston 90 is elastically fitted in the piston cylinder 50; the water passage on the piston cylinder 50 includes a gutter 51, a needle valve channel and a main water channel, and the gutter 51 is formed on the side wall of the piston cylinder 50 The longitudinal groove, the needle valve channel is the annular gap between the valve needle 72 and the bottom face of the piston cylinder 50, and the main water It includes an opening 53 in the through hole 52 of the cylinder 50 to the top of the upper side wall of the piston cylinder.

An annular spiral guide rail 100 is provided along the inner hole wall of the upper end of the spindle sleeve 30, and the guide rail 100 is one and has a fixed thread rising angle. The auxiliary sleeve 30 ′ is provided with a thread 71 ′ slidingly matched with the annular spiral guide 100, and the thread 7 is in sliding contact with the lower rail surface of the guide 100. A key groove or a tooth groove corresponding to each other is formed in the mounting hole of the rotary handle 80 and the outer periphery of the upper end of the auxiliary sleeve 30 'correspondingly; an arc-shaped limiting groove 33 is formed on the upper end edge of the main sleeve 30, and the groove 33 is defined by The rotation angle of the convex post 81 fixed on the rotation handle 80 defines the downward movement of the upper mandrel 30 ′.

The spindle sleeve 30 has its own sleeve body, and the sleeve body and the valve body 20 are connected by threads. The water passing flange 40 has its own disc body, and the piston cylinder 50 has its own cylinder body. The water passing flange body 40 and the independent cylinder body 50 are pressed and fixed to the valve body by the sleeve body 30 with threads. On 20, the movable seal ring 84 is tightly sleeved in the ring groove 73 of the spindle 70, and the piston rubber ring 85 is tightly sleeved on the ring under the spindle 70. A fixed seal ring 75 is provided in the groove 74 between the main spindle 70 and the main shaft sleeve 30.

The disc body 40 and the piston cylinder 50 of the water passing flange are made of a metal material different from the valve body. There are two return springs, of which the lower return spring 60 is interposed between the inner bottom surface of the piston cylinder 50 and the bottom end of the ring groove 74, and the upper return spring 60 'is interposed between the inner top surface of the pressing handle 80 and Between the upper end faces of the countershaft 30 '.

The valve of this embodiment adopts pressing, left-handing and right-handing operations, and can perform short delay self-closing respectively.

Claims

Rights request

1. A multi-control water-saving valve, the multi-control water-saving valve includes a valve body (20) with a water inlet (10) and a water outlet (15), and a shaft sleeve (20) is provided on a wall of the valve body (20). 30), a water passing flange (40), a piston cylinder body (50) with a water channel and a return spring (60); a mandrel (70) is assembled in an inner hole of the shaft sleeve (30), the mandrel (70) A handle (80) is connected to the upper end, a movable sealing ring (84) is sleeved on the lower part, and a piston (90) and a rubber ring (85) are installed on the lower end; the water passing flange (40) has a middle hole and A water passing backlash (41) is opened, and the movable seal ring (84) is opened and closed to fit in a hole in the water passing flange (40); the piston (90) is elastically fitted to the piston cylinder (50); the water channel on the piston cylinder (50) includes a gutter (51) and a main channel, and the gutter (51) is a longitudinal groove formed on a side wall of the piston cylinder, and the main channel It comprises a through hole (52) on the upper side wall of the piston cylinder (50) and an opening (53) on the top end of the cylinder; It is characterized in that: a spirally extending wall is provided along the inner hole wall of the shaft sleeve (30) Guide rail (100), said guide rails (100) being opposite The inner hole wall of the sleeve (30) is a concave or convex structure and has a lower rail surface facing downward; a convex pin (71) is vertically arranged on the mandrel (70), and the convex pin (71) and The lower rail surface of the guide rail (100) makes sliding contact.

2. The multi-control water-saving valve according to claim 1, characterized in that: the guide rails (100) are one or two; the two guide rails (101), (102) have respective rising angles, and two The guide rails (101) and (102) intersect smoothly at the highest point; the convex pin (71) has a circular cross section or a streamlined cross section.

3. The multi-control water-saving valve according to claim 2, characterized in that: two guide rails (101), (102) are provided on an inner hole wall of the shaft sleeve (30), wherein at least one guide rail has a smooth , Or the two rails have a steep rise angle.

4. The multi-control water-saving valve according to any one of claims 1, 2, and 3, characterized in that the cross section of the mandrel (70) is circular, and the inside of the mounting hole of the handle (80) and the The outer periphery of the upper end of the mandrel (70) is correspondingly formed with a key groove or a tooth groove that cooperates with each other; the mandrel (70) is one, or the mandrel is formed by butting the upper and lower sections, and the convex The pin (71) is provided on one of the sections.

5. The multi-control water-saving valve according to any one of claims 1, 2, and 3, characterized in that: the return spring (60) is interposed between an inner bottom surface of the piston cylinder (50) and the mandrel (70) between the bottom ends; or the return spring (60) is between the inner top surface of the handle (80) and the upper end surface of the shaft sleeve (30); or the return spring is two (60), (60 '), one of which is between the inner bottom surface of the piston cylinder (50) and the bottom end of the mandrel (70), and the other is between the inner top of the handle (80) Between the surface and the upper end surface of the shaft sleeve (30).

6. The multi-control water-saving valve according to any one of claims 1, 2, and 3, characterized in that: the shaft sleeve (30) comprises an outer sleeve (31) and an arc-shaped cylindrical sleeve ( 32), the guide rail (100) is made of a metal material, and the guide rail (100) is located at the top of a notch (32 ') of the inner sleeve (32).

7. The multi-control water-saving valve according to claim 6, characterized in that: the outer casing (31) has its own sleeve body, and the sleeve body and the valve body (20) are connected by threads; the The water passing flange (40) has its own plate body, the piston cylinder (50) has its own cylinder body, and the water passing flange plate (40) and the independent cylinder body (50) are threaded The sleeve body (31) is pressed and fixed on the valve body (20), the movable seal ring (84) is tightly sleeved in a ring groove (73) of the mandrel (70), and the piston rubber ring (85) ) Is tightly sleeved in a 'ring groove (74) at the lower part of the mandrel (70).

8. The multi-control water-saving valve according to claim 6, characterized in that the outer casing (31), the water passing flange (40) and the piston cylinder (50) are all connected to the valve body (20), Integrated connection.

9. The multi-control water-saving valve according to claim 8, characterized in that: the movable seal ring (84) is installed at an upper end of a piston sleeve (90 '), and the piston rubber ring (85) is tight It is sleeved in a ring groove (74 ') at the lower part of the piston sleeve (90'), and the upper end of the piston sleeve (90 ') is sleeved on a step at the lower end of the mandrel (70).

10. The multi-control water-saving valve according to claim 9, characterized in that: the return spring is two (60), (60 '), one of which is between an inner top surface of the handle (80) and Between the upper end surfaces of the shaft sleeve (30), another one is between the inner bottom surface of the piston sleeve (90 ':) and the bottom surface of the lower end of the mandrel (70), and the mandrel (70) A seal ring (86) tightly sleeved on the lower end step seals the annular gap between the shaft sleeves.