WO2009079821A1

WO2009079821A1 - Time-controlled switch valve

Info

Publication number: WO2009079821A1
Application number: PCT/CN2007/003579
Authority: WO
Inventors: Zhihong Gao; Youyue Gao
Original assignee: Highplus International Co., Ltd.
Priority date: 2007-12-13
Filing date: 2007-12-13
Publication date: 2009-07-02

Abstract

A time-controlled switch valve consists an inner casing (30), a top cover assemble (40) and a time-controlled apparatus (50). One end of the inner casing (30) forms an opening, the other end is a base plate (31), and a through hole (32) is formed in the center of the base plate (31); the top cover assemble (40) covers the open end of the inner casing (30), several inlet holes (43a, 43b) communicating with the inner casing (30) are formed in the top cover assemble (40), and a sleeve (41) projects axially at its inner side; the time-controlled apparatus (50) passes through the through hole (32) of the inner casing (30) and is supported againstthe top of the sleeve (41), the time-controlled apparatus (50) includes a push rod (51), a water storage ring (53) and an elastomer (55), one end of the push rod (51) passes through and is disposed in the sleeve (41), and at middle part of the push rod (51) is provided with an O ring (513) which is opposite to the through hole (32) of the inner casing (30); the water storage ring (53) is made of elastic material, and is shaped as an annulus with arc section and inwardly shrinking openings at two opposite ends, an upper end (531) of the water storage ring (53) securely surrounds the outer periphery of the sleeve (41), a lower end (532) of thewater storage ring (53) securely surrounds the outer periphery of the push rod (51), so that one end of the push rod (51) with a plug (511) and a water flowing hole (516) can only move between the top of the sleeve (41) and the lower end (532) of the water storage ring (53).

Description

Time control switch wide

The invention relates to an on-off valve, in particular to a time-controlled switching valve which can be used to push the push rod by using an elastic body to balance the water pressure after the water pressure is balanced within a certain period of time. Background technique .

The time-controlled switch valve is a device that is installed at the water outlet of the faucet to control the water supply and water shutoff of the faucet.

For the prior art time-controlled switching valve, refer to the Chinese Taiwan Patent Application No.

9 ⁵ 131889 "Adjustable time-controlled water valve", as shown in Fig. 5, which comprises a housing assembly 60, an upper cover 70, a lower cover 80 and a pusher 90, wherein:

The housing assembly 60 is formed as a hollow housing, and a radially extending ring on the inner wall surface thereof is provided with a water stop ring 61 having a central passage 62;

The upper cover 70 is disposed on one end surface of the casing assembly 60, and is provided with a plurality of water inlet holes at intervals

71, another axially projecting a sleeve 72 on the inner side thereof;

The lower cover 80 is disposed on the other end surface of the housing assembly 60, and has a through hole 81 through the center of the through hole 81, and a plurality of water outlet holes 82 around the through hole 81;

The center hole of the pusher 90 is provided with a constant hole 91, and an O-ring 92 is fixed on the outer side of the rod body. The push rod 91 is sequentially passed through the through hole of the lower cover 80 and the water stop ring 61 of the casing assembly 60. 81, 62, one end of which is disposed in the sleeve 72 of the upper cover 70, and a plug block 93 which is supported on the inner wall surface of the sleeve 72 is disposed on the end sleeve, and the radial direction between the plug block 93 and the 0-ring 92 A water flow hole 94 is defined through the push rod 90 body, wherein an elastic body 95 is disposed between the end of the push rod 90 and the bottom of the sleeve 72 of the upper cover 70.

One end of the upper cover 70 is disposed at the water outlet of a faucet, and the push rod 90 is pushed into the interior of the housing assembly 60, and the 0-ring 92 of the push rod 90 leaves the housing assembly. The through hole 62 of the water stop ring 61 of 60 is such that the tap water can flow into the interior of the housing assembly 60 from the water flow hole 71 of the upper cover 70, and further by the through hole 62 and the lower cover 80 of the water stop ring 61 of the housing assembly 60. The water outlet hole 82 flows out of the water valve for use, and at the same time, the tap water accumulated in the interior of the casing assembly 60 also flows into the casing 72 of the upper cover 70 via the water flow hole 94 of the push rod 90, so that the water pressure of the tap water is matched. The elastic restoring force of the elastic body 95 acts to resist the friction between the plug 93 of the push rod 90 and the inner wall surface of the sleeve 72 of the upper cover 70, and gradually pushes the push rod 90 toward the outside of the housing assembly 60 until The 0-ring 92 on the push rod 90 closes the through hole 62 of the water stop ring 61 of the housing assembly 60, and the tap water can no longer flow out therefrom, so that the adjustable time control water valve is closed, and the control faucet is reached. The purpose of the water supply time. Since the tap water often contains various impurities, impurities may easily accumulate inside the casing assembly 60 after a long period of use, especially when the impurities are blocked in the water flow hole 94 of the push rod 90 or the end of the push rod 90. When it is in contact with the casing Ί1 of the upper cover 70, it is not only difficult to clean but also causes a malfunction, so the prior art adjustable time-controlled water slab does have further improvement. Disclosure of invention

The main object of the present invention is to provide a time-controlled switching valve, which is designed to prevent impurities in the tap water from accumulating in the water flow hole of the push rod and between the top end of the push rod and the upper cover, thereby preventing the switch valve from malfunctioning. .

In order to achieve the above object, the time-controlled switching valve of the present invention includes:

An inner casing is formed with an opening at one end and a bottom plate at the other end. A through hole is formed in the center of the bottom plate of the inner casing, and an inner side of the bottom plate protrudes from the through hole around the through hole with a plurality of inner portions. Ring wall

An upper cover assembly is disposed on the open end of the inner casing, and has a plurality of water inlet holes formed therein, and a sleeve is axially protruded on the inner side surface, and the end edge of the sleeve and the inner casing The end edges of the ring walls are opposite; and

The first control device comprises a push rod, an elastic water retaining ring and an elastic body, and the push rod penetrates the through hole of the inner casing such that the inner end thereof is disposed in the sleeve of the upper cover assembly, the push rod The outer end protrudes from the outer side of the inner casing, and the inner end sleeve is provided with a plug block which is supported by the inner wall surface of the sleeve of the upper cover assembly, the push rod axially penetrates the inner hole, and the radial direction penetrates through a water flow hole communicating with the through hole, a ring of 0 is arranged between the water flow hole and the outer end of the push rod, and a split ring at one end of the fixed water ring is provided with an outer ring wall surface of the sleeve inside the cover, and the other end is The split ring is provided with a push rod and is fixed between the sleeve of the upper cover and the end edge of the inner ring wall of the inner casing, and the water flow hole of the push rod is located between the water retaining rings, and one end of the elastic body abuts against The bottom of the sleeve of the upper cover, the other end is placed on the end face of the push rod.

The invention has the advantages that the elastic water ring is arranged around the water flow hole of the push rod, and further the clean water and the cover of the upper cover assembly are filled with clean pure water, and the pure water is used. Because it is squeezed and flows in the water ring of the water ring, the water flow hole of the push rod and the sleeve of the upper cover assembly, the push-up pile rod is closed to close the control valve at this time, so that impurities in the tap water are not blocked. The problem between the casing and the push rod in the water flow hole can effectively maintain the use efficiency of the time-controlled switching valve of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a perspective view of the present invention.

Figure 2 is a perspective exploded view of the present invention.

Figure 3 is a side cross-sectional view of the present invention in a closed state.

Figure 4 is a side cross-sectional view of the present invention in an open state. Figure 5 is a side cross-sectional view of the prior art.

[Main component symbol description]

10 ― Outer housing assembly 11 · ― Threaded part

20 ― lower cover 21 ' --through hole

22 ― water outlet 30 - -- inner casing

31 ―Backplane 32 - -- Through Hole

33 ― Inner ring wall 40 - -- Upper cover assembly

41 ―Sleeve 42 - ― Ring groove

43a/43b ―Inlet 孑 L 50 - ― Time control device

51 ―Pusher 511 ― Plug

512 - - Fixed block 513 ― 0 ring

514 - - Through hole 515 -- Female thread

516 - - Water hole 52 - ―Adjustment lever

521 - - Threaded part 522 ― Groove

53 -- solid water ring 531 --- upper end

532 - ― lower end 54 - -- ring spacer

541 - - Water trough 542 -- Board

55 -- Elastomer 60 - -- Housing assembly

61 ―Water stop ring 62 -- -- Through hole

70 ― Bu 3⁄4 71 - ―Water inlet hole

72 ―Casing 80 -

81 --through hole 82 -- -- water outlet

90 ―Pushing rod 91 - -- Through hole

92 0—-ring 93 -- -- plug

94 - Water hole 95 - -- Elastomer The best way to achieve the invention

Referring to Figures 1 and 2, the time-controlled switching valve of the present invention includes an outer casing assembly 10, a lower cover 20, an inner casing 30, an upper cover assembly 40 and a time control device 50, wherein:

Referring to FIG. 3, the outer casing assembly 10 is formed as a hollow casing and has an opening formed at each end thereof, and a threaded portion 11 is formed around the outer wall surface adjacent to the top opening;

The lower cover 20 is tightly disposed on the opening of the bottom end of the outer casing assembly 10, and has a through hole 21 formed in the center thereof, and a plurality of water outlet holes 12 are formed around the through hole 21;

The inner casing 30 is disposed in the outer casing assembly 10, and an end surface adjacent to the top end of the outer casing assembly 10 is formed as an opening, and the other end surface adjacent to the lower cover 20 is a bottom plate 31, wherein the bottom plate A through hole 32 is formed in the center of the 31, so that the inner casing 30 communicates with the through holes 32, 21 of the upper cover 20, and the inner side of the bottom plate 31 of the inner casing 30 is axially spaced around the through hole 32. a plurality of inner ring walls 33;

The upper cover assembly 40 is tightly disposed on the open end of the outer casing assembly 10 and the inner casing 30. A sleeve 41 is axially protruded on the inner side surface thereof, and the end edge of the sleeve 41 and the inner end of the inner casing 30 are axially protruded. The end edges of the ring walls 33 are opposite to each other, and the outer side surface of the sleeve 41 is radially protruded to form a ring groove 42 so that the opening of the ring groove 42 faces the free end of the sleeve 41 in the same direction, and the upper cover assembly The upper 40 is formed with a plurality of water inlet holes 43a, 43b communicating with the inner portion of the inner casing 30;

The timing device 50 penetrates the through holes 21 and 32 of the lower cover 20 and the inner casing 30 to abut the top of the sleeve 41 of the upper cover assembly 40, and includes a push rod 51, an adjusting rod 52 and a solid water ring. 53, a ring spacer 54 and an elastic body 55;

The pusher 51 passes through the through holes 21, 32 of the lower cover 20 and the inner casing 30, and one end thereof is inserted into the sleeve 41 of the upper cover assembly 40, and a plug block 511 is disposed on the end sleeve. The plug block 511 is supported by the inner wall surface of the sleeve 41 of the upper cover assembly 40. The other end of the push rod 51 protrudes from the outer side of the lower cover 20, and a fixing block 512 is disposed at the end. It is divided into two molds, which are made of different materials and combined, and have a better combination effect with the end of the push rod 51. In addition, the ring set position of the push rod 51 has a 0-ring 513, so that When the 0-ring 513 abuts against the bottom plate 31 of the inner casing 30, the through hole 32 of the inner casing 30 can be further closed. Further, the push rod 51 is axially formed with a uniform hole 514, and the inner wall surface of the through hole 514 An internal threaded portion 515 is formed near the bottom end thereof, and a water flow hole 516 communicating with the through hole 514 is radially penetrated on the push rod 51 near the sleeve plug 511;

The adjusting rod 52 is disposed in the through hole 514 of the push rod 51 such that one end thereof is adjacent to the water flow hole 516 of the push rod 51, and the other end of the ring wall surface is formed with a threaded portion 521, and the threaded portion 521 can be combined with the push rod The internal thread portion 515 of the 51 is relatively screwed, and a groove 522 is formed on the bottom end surface of the adjusting rod 52. The user can insert a tool matched with the shape of the groove 522 to rotate the adjusting rod 52. Adjusting the relative position of the adjusting rod 52 and the push rod 51, thereby adjusting the water inlet amount of the water flow hole 516 of the push rod 51;

The water-retaining ring 53 is made of an elastic material, and is formed into a curved shape and formed with a retracted ring body at the openings of the opposite end faces, such that the openings of the opposite end faces are respectively an upper end portion 531 and The lower end portion 531 of the water retaining ring 53 is annularly disposed on the outer side surface of the sleeve 41 of the upper cover assembly 40, and is embedded and fixed in the annular groove 42 of the sleeve 41, and the lower end portion of the water retaining ring 53 The 532 is provided with a push rod 51 and is clamped between the sleeve 41 of the upper cover assembly 40 and the end edge of the inner ring wall 33 of the inner casing 30, so that the push rod 51 is provided with the plug block 511 and the water flow hole 516. One end of the sleeve assembly 40 only in the upper cover 41 of the top portion 532 between the lower ring 53 fixed to the moving water, the other 41 may further be filled with water to a solid stream of the sleeve ring ⁵³ and cover assembly 40 Flowing through the water flow hole 51 ^{6 of} the push rod 51 Pure water

The ring spacer 54 is disposed on the outer side surface of the sleeve 41 of the upper cover assembly 40, and is located between the upper and lower end portions 531 and 532 of the water retaining ring 53, and a plurality of water flows are formed on one end edge of the annular partition plate 54. a groove 541, and a plurality of abutting plates 542 are radially protruded from the edge of the inner wall surface of the annular partition 54 adjacent to the water flow groove 541, so that the abutting plate 542 can be supported by the upper cover assembly 40. The end edge of the sleeve 41 and the lower end portion 5 32 of the water retaining ring 53;

The elastic body 56 can be a spring having one end abutting against the top of the sleeve 41 of the upper cover assembly 40 and the other end abutting against the end surface of the push rod 51.

Referring to FIG. 4, the control switch valve can be screwed to the water outlet of a faucet by the threaded portion 11 of the outer casing assembly 10, and the push rod 51 is pushed into the inner casing 30 at this time. The push rod 51 compresses the elastic body 55, and the 0-ring 51 3 on the push rod 51 leaves the through hole 32 of the inner casing 30, and the pure water in the sleeve 41 of the upper cover assembly 40 is pressed by the push rod 51. The water flow hole 516 flows into the solid water ring 53 to allow the control switch valve to be opened, so that the tap water can flow through the water inlet holes 43a, 43b of the upper cover assembly 40 and accumulate in the inner casing 30, and then Further, the switch valve is flowed out from the through hole 32 of the inner casing 30 and the water outlet 22 of the lower cover 20 for use, wherein the tap water accumulated in the inner casing 30 presses the water retaining ring 5 3 to The pure water inside flows into the sleeve 41 of the upper cover assembly 40 via the water flow hole 516 of the push rod 51, so that the water pressure of the pure water cooperates with the elastic restoring force of the elastic body 55, and the push rod 51 can be gradually pushed toward the inner shell. The body 30 moves outside, and after a period of time, the 0-ring 51 3 on the outer side of the push rod 51 will be tightly covered. The through hole 32 is provided in the inner casing 30 to turn the switching valve into a closed state. If the tap water is to be discharged again, the push rod 51 can be pushed into the inner casing 30 again.

Wherein, the relative position of the adjusting rod 52 and the push rod 51 is adjusted to control the flow rate of the water flow hole 516 of the push rod 51, and the time for the push rod 51 to return to the closed state can be further controlled, because the water retaining ring 5 3 and The flow between the sleeves 41 of the upper cover assembly 40 is pure water enclosed therein, thereby effectively preventing impurities in the tap water from being clogged in the water flow holes 516 of the push rod 51 or the sleeve 41 of the upper cover assembly 40. This causes the control switch valve to malfunction at this time.

Claims

Rights request

A time-controlled switching valve characterized by comprising an inner casing, an upper cover assembly and a timing control device, wherein:

One end surface of the inner casing is formed as an opening, and the other end surface is a bottom plate, the bottom plate is formed through the center of the bottom plate;

The upper cover assembly is tightly disposed on the open end of the inner casing, and a sleeve is axially protruded on the inner side surface thereof, and a plurality of water inlet holes communicating with the inner portion of the inner casing are formed through the upper cover assembly; The control device penetrates the through hole of the inner casing to abut the top of the sleeve of the upper cover assembly, and includes a push rod, a water retaining ring and an elastic body, and the push rod penetrates the through hole of the inner casing One end of the sleeve is disposed in the sleeve of the upper cover assembly, and a plug block for supporting the inner wall surface of the sleeve of the upper cover assembly is disposed on the end sleeve, and the other end of the push rod protrudes from the outer side of the inner casing, and The ring portion of the middle portion of the push rod has a 0-ring opposite to the through hole of the inner casing. In addition, the push rod is axially formed with a constant hole, and the push rod is connected to the through hole at a radial direction near the plug. The water retaining ring is made of an elastic material, and is formed into a curved cross section and forms a retracted ring body at the openings of the opposite end faces, so that the openings of the opposite end faces are respectively an upper end And the lower end portion, the upper end portion of the solid ice ring is fixed to the upper cover assembly The outer side of the tube, and the lower end portion is annularly fixed on the side of the ring of the push rod, so that the end of the push rod with the plug block and the water flow hole can only be at the top of the sleeve of the upper cover assembly and the lower end of the water retaining ring. During the movement, one end of the elastic body abuts against the top of the sleeve of the upper cover assembly, and the other end abuts against the end surface of the push rod.

The time-controlled switching valve according to claim 1, further comprising a plurality of inner ring walls extending axially around the through hole around the inner side surface of the bottom plate of the inner casing, the upper cover assembly The end edge of the free end of the sleeve is opposite to the end edge of the inner ring wall of the inner casing, and the outer side of the sleeve is radially protruded to form a ring groove around the sleeve, so that the opening of the ring groove and the freedom of the sleeve The upper end of the water-retaining ring is embedded in the annular groove of the sleeve fixed to the upper cover assembly, and the lower end of the water-tight ring is clamped and positioned on the sleeve and the inner casing of the upper cover assembly. Between the opposite end edges of the inner ring wall.

3. The time-controlled switching valve according to claim 1, wherein the time control device further comprises a ring spacer disposed on an outer side of the sleeve of the upper cover assembly and located in the fixed water Between the upper and lower ends of the ring, a plurality of water flow grooves are formed on one end edge of the ring partition, and a plurality of radial flow grooves are formed on the inner wall surface of the ring partition near the end edge where the water flow groove is formed. The plate can be supported between the end edge of the sleeve of the upper cover assembly and the lower end of the water ring.

4. The time-controlled switching valve according to claim 2, wherein the time control device further comprises a ring spacer is disposed on an outer side surface of the sleeve of the upper cover assembly, and is located between the upper and lower ends of the water retaining ring, and a plurality of water flow grooves are formed on one end edge of the ring partition, and A plurality of abutting plates are radially protruded from the inner wall surface of the baffle baffle near the end edge formed with the water flow groove, and the abutting plate can be supported on the end edge of the casing of the upper cover assembly and the water retaining ring Between the lower ends. The time-controlled switching valve according to any one of claims 1 to 4, wherein the timing control device further comprises an adjusting lever which is disposed in the through hole of the push rod so that one end thereof is adjacent to a water flow hole of the push rod, a threaded portion is formed on the ring wall surface of the other end, and a groove is formed on the bottom end surface of the adjusting rod, and the push rod forms a thread with the adjusting rod near the bottom end of the inner wall surface of the through hole The portion of the threaded portion that is relatively screwed. The time-controlled switching valve according to claim 5, further comprising an outer casing assembly and a lower cover, wherein the outer casing assembly is formed as a hollow casing and an opening is formed at each of the two ends thereof, and A threaded portion is formed on the outer wall surface adjacent to the top opening, the lower cover is tightly disposed on the opening of the bottom end of the outer casing assembly, and a through hole is formed in the center, and a plurality of water outlet holes are formed around the through hole. The inner casing is mounted in the outer casing assembly with the bottom plate relative to the lower cover, and the inner casing communicates with the through hole of the lower cover, and the upper cover assembly further covers the open end of the outer casing assembly, The push rod of the time control device further penetrates the through hole of the lower cover to protrude outside the lower cover. The time-controlled switching valve according to claim 6, wherein a fixing block is formed on an end of the timing member protruding from the outside of the lower cover.