CN2048088U

CN2048088U - Air-pressure water-saving flushing device

Info

Publication number: CN2048088U
Application number: CN 89202807
Authority: CN
Inventors: 杨光辉; 黄国庭; 李军
Original assignee: XIANGSHAN COUNTY DINGSHAN ELECTRONIC TOY PLASTIC FACTORY ZHEJIANG PROV
Current assignee: XIANGSHAN COUNTY DINGSHAN ELECTRONIC TOY PLASTIC FACTORY ZHEJIANG PROV
Priority date: 1989-03-11
Filing date: 1989-03-11
Publication date: 1989-11-22

Abstract

The utility model relates to an air-pressure water-saving toilet flushing device, comprising an air tightness low-volume water tank which holds water of 6 liter, and compressed air is arranged above the water surface. A water draining valve lifting rod is accommodated inside a flexible distance sleeve, and the lower end of the distance sleeve is provided with a corrugated pipe which isolate the lifting rod and the inner chamber of the water tank, so that the problem of dynamic sealing is solved. The top surface of the water tank is fixed with an automatic air supplementing pipe which extends downward and is accommodated with a floating ball, and uses the height change of the water surface to automatically supplement air. A water inlet arranged on the bottom surface of the water tank is provided with a check valve, and inverse siphonage can not occur when the pressure force of a water net descends seriously. A water draining valve opening mechanism is provided with a torsion-adjustable torsion spring which has the functions of time delaying and water supplementing.

Description

Air-pressure water-saving flushing device

The utility model belongs to toilet flush, is the tangible novel water tank of a kind of water-saving result, and it utilizes compressed-air actuated elastic force that the required water yield of cleaning closestool is significantly reduced and effect is same as the toilet flush of traditional big water quantity.

The existing in the prior art pressurized air that utilizes is realized water saving purpose pneumatic-typed toilet flush, as 87201648,87101290 ... the described economizer water tank for excrement pan of patent, this be we in first to file, it is the airtight water tank of a small capacity, the water discharging valve lifting arm has problems with the sealing of water tank always, and (seal ring cooperates too tight with lifting arm, just feel painstaking during poppet; On the contrary, as cooperating too pine, dynamic sealing performance is poor, and water leakage phenomenon leaks air.）。On the other hand, do not add check valve on the water tank inlet,, can produce inverted siphon phenomenon when whole pressure of water network occurs descending significantly suddenly (as when fire hose is used in breaking out of fire), make the suck-back entry webmaster system that is filled with water in the water tank, this phenomenon does not meet sanitary standard.Also have, in the original application scheme, do not have automatic air supply device, the time one is long, and the air supply in the airtight water tank reduces gradually, and compressed-air actuated elastic force also descends, and water usage increases, and cleaning and water-saving result be variation gradually.The water replenishing device of not delaying time in the former scheme makes the sealing water level of closet trap be difficult to control.

In view of a series of shortcomings of above-mentioned existence, it is satisfactory not to the utmost that the original application scheme seems, need be improved.

The purpose of this utility model is to overcome the various shortcoming of above-mentioned existence, release a kind of improvement project, it solves with comparatively simple structure: 1, the dynamic seal (packing) problem between lifting arm and the water tank end face, contingent inverted-siphon problem when 2, tap water pipe network pressure seriously descends, 3, the automatic tonifying Qi problem of water tank, 4, water tank is to the problem of flush toilet closet time-delay moisturizing.

The purpose of this utility model is to realize (being described in detail in conjunction with the accompanying drawings and embodiments) like this:

Fig. 1 is an an embodiment's of the present utility model overall construction drawing.

Fig. 2 is the partial enlarged drawing of Figure 1A portion, shows the lower end of separation sleeve.

Fig. 3 is the partial enlarged drawing of Figure 1B portion, shows the upper end of separation sleeve.

Fig. 4 is the partial enlarged drawing of Fig. 1 D portion, shows automatic air supply device.

Fig. 5 is the partial enlarged drawing of Fig. 1 C portion, shows the water intake check valve.

The utility model makes every effort to achieve the goal with the simplest structure, and at first, we are that polished rod (1), bottom are that the scheme of the separation sleeve of telescopic radiation fins (2) has solved first existing problems (dynamic seal (packing) problem) with a top only.We can be clear that from Fig. 1, Fig. 2, Fig. 3, this separation sleeve upper end is opening-like, there is flange (flange) end, it is embedded in the cavity of connecting head (3), compress with plug screw (4) on it, connecting head (3) is outwards outstanding with its threaded pipe (5) from the water tank the inside, its bacterium facial planes is adjacent to by seal washer (6) and water tank end face, as long as the moment that the power that screws of locking nut (7) and plug screw (4) is controlled to regulation just can guarantee the sealing of water tank (8) at this connection part.The bottom of separation sleeve is telescopic radiation fins (2), it be being connected of drain valve valve head detachably, the end of radiation fins (2) is opening, have turn over lip (flange), it is embedded in the cavity bottom surface of valve head (9) hollow, by pressing plate (10) and tight cap (11) it and cavity bottom surface are adjacent to and fasten, the oral area of cavity uses blind nut (12) to cover again, and another effect of blind nut (12) is pushed down the seal washer (13) on valve head (9) base plane exactly tightly.In order to limit the radially degrees of freedom of valve head (9), on the circumference end face of valve seat (14), be provided with the limit stoper of projection vertically upward, it can be that one section short thin-wall circular tube, its height are greater than the possible lift of valve head (9), on its perisporium porous is arranged, the internal diameter of this weak point thin-wall circular tube (not shown) equals footpath outside the valve head (9) substantially, valve head (9) can only move up and down within it, does not have the degrees of freedom of radial motion.In order to limit the radially degrees of freedom of valve head (9), the scheme that present embodiment adopts is that the end face of valve seat (14) is provided with the limited post of projection (15) vertically upward, the number of limited post (15) is the amount doesn't matter, is branch layouts such as angle along circumference, and its height is greater than the possible lift of valve head (9).

From Fig. 1 and Fig. 3 as seen, the water discharging valve start-stop device is a cover lever system, be positioned on the water tank outer top surface, it includes a long-armed lever (16), the fulcrum of lever (16) is bearing pin (17), bearing pin (17) constitutes the adjustable and lockable flexible connection of rotation angle with bearing (18), for example, straight key (not shown) is arranged on the cylndrical surface of bearing pin (17), week of the cooperation circular hole of bearing along on have the corresponding grooves (not shown), like this, bearing pin is extracted change in the matching hole that inserts bearing (18) after the angle again and just can be reached the purpose of regulating corner and locking.The coil of torsion spring (19) partly is enclosed within on the bearing pin, one end of torsion spring radially runs through bearing pin (17) and button is climbed on bearing (18), the other end of torsion spring is then detained and is climbed on bottom surface under the lever (16), like this, torsion spring remains by the trend that turns to rotation counterclockwise lever, the power transmission of the tie point by lever (16) and lifting arm (20), make lifting arm (20) remain downward movement tendency, make valve head (9) be in the state that constitutes sealing with valve seat (14) always.If the torsion to torsion spring is regulated, torsion is adjusted to hour, valve head (9) only is in and relies on the deadweight nature to be shelved on state on the valve seat (14), at this moment valve head (9) and valve seat (14) are though be in closed condition, but blow-by, being filled with water in the water tank (8) still can be flowed out, this strand current are tiny, can play moisturizing effects to the trap of flush toilet closet, form water seal in the water crook.As for the length of moisturizing time, except the torque magnitude that depends on torsion spring, the rising of the interior water level of water tank (18) also is a factor to the pressure that valve head (9) is produced, and the comprehensive function between the two has determined the length of moisturizing time.Therefore, as long as realize the torque magnitude of torsion spring (19) is regulated, also just finished adjusting to moisturizing time length.Take other scheme, for example utilize the flat spring (not shown) of elasticity adjusting or realize the adjusting of lifting arm, can realize the purpose that the length of moisturizing time is regulated equally along power on the longitudinal direction with the adjustable stage clip (not shown) of lifting arm (20) coaxial arrangement.

In order to control the degree that drain valve is opened, on the bottom surface of lever (16), add an adjusting screw (21), this screw stretches out the height of lever bottom surface to the restricted effect of self rotating angle of lever (16), thereby can regulate the lifting height of drain valve valve head, the water yield of control water outlet.

The content of above-mentioned piece of writing section discloses the scheme of solution " dynamic seal (packing) " and " time-delay moisturizing " this two problem.Following piece of writing section will openly solve the technological scheme of " tonifying Qi automatically " and " preventing inverted-siphon ".

The detailed structure that has shown the water tank automatic air supply device among Fig. 4, it includes upper end open and is fixed on the water tank end face, the fixed length hollow circular tube (22) of Shen Zhaning vertically downward, its upper end has one section threaded pipe to expose outside the water tank end face, there is a nut (23) to be spirally connected with it, there is a flange (24) the pipe upper end in the water tank inboard, it is adjacent to by seal ring (25) and water tank end face, constitutes sealing.The end of this hollow circular tube (22) has a hole enlargement tube chamber (26), includes a ball float (27), and the path tube chamber (28) of pipe (22) to the transition shoulder and the ball float (27) of large-diameter pipe chamber (26) forms sealing each other.Such sealing can have various scheme, for example processes the sealing cone (not shown) on this shoulder, and it and ball float constitute sealing; Present embodiment adopts a folder guiding valve (29) between ball float (27) and shoulder, and the bar portion of guiding valve inserts in the path tube chamber (28) from bottom to top, and its bacterium portion is by a seal ring (30) and shoulder constitute sealing one by one.Large-diameter portion divides tube chamber (26) to link up mutually with the space of water tank inside with the hole (32) of pipe at the end by the hole on the tube wall (31), and the inner chamber height that large-diameter portion divides is slightly larger than the diameter of ball float (27).Preferable way is to save guiding valve (29), and the bottom surface in large-diameter pipe chamber also can be saved, only need radially run through the large-diameter pipe wall with a cotter pin (not shown), and ball float (27) has been put just.Adopt the automatic water-replenishing device of this programme, when the water level in the water tank was lower than described ball float height, ball float (27) fell, and the sealing at this place is destroyed, and ambient atmosphere enters water tank cavity.Form sealing again between ball float (27) and the shoulder when height of water level surpasses described ball float height when water tank water intake, the tonifying Qi bore closure, water tank (8) inner chamber and ambient atmosphere are isolated.

Fig. 5 has described the detailed structure of the check valve that is contained in water intake.Its valve seat (33) is fixed on the bottom surface of water tank (8) by seal ring (34) and tight cap (35), that part of cylindrical shape skirt wall that upwards stretching, extension and end face opening arranged of valve seat (33) in water tank, have water port (36) on the skirt wall, the top of skirt wall is processed with outside thread, there is a cover cap (37) to screw togather with it, the end face central authorities of cover cap (37) have pilot hole, around pilot hole, have a plurality of water ports (38), on the center through hole of valve seat (33), be shelved with a spool (39) with one heart, its bar portion passes the central pilot hole of cover cap (37) from bottom to top, rely on self gravity and water tank in the shoulder (41) of sealing surface (40) and valve seat of pressure valve core of water constitute sealing.When tap water pipe network pressure seriously descends, the pressure of running water pipe is negative pressure state with respect to the pressure of water tank (8) inner chamber, and spool (39) is close on the valve seat (33), and negative pressure is big more, its sealability better, thereby overcome the generation of inverted siphon phenomenon effectively.

The water tank capacity of present embodiment is significantly littler than the volume of traditional toilet flush, only be 9 to rise to 11 liters, and the normally amount of being filled with water in it has only about 6 liters, and the internal diameter of drain opening is good with 25 millimeters to 30 millimeters.

Claims

1, a kind of pressure water-saving flushing device for toilet, it includes a bubble-tight sealing and closes water tank, in be filled with water, water surface top is pressurized air, water tank capacity only is 2/5 to 1/2 of a traditional type toilet flush volume, the water intake of water tank directly is connected with the tap water pipe network, the outer top surface of water tank is provided with the water discharging valve start-stop device, the water outlet place is provided with the water outlet valve seat and sits the valve head that forms sealing thereon between the two, there is its lower end of a lifting arm to be connected mutually with valve head, stretch vertically upward its upper end, outstanding water tank end face, be connected with the water discharging valve start-stop device on being positioned at the water tank end face, the water outlet valve seat of garden tubular is connected with the closet of flush toilet by connecting sleeve, it is characterized in that:

A, described lifting arm (20) are inclusive in the separation sleeve, separation sleeve top is that plain tube (1), bottom are telescopic radiation fins (2), radiation fins is terminal to be connected with drain valve valve head (9), the separation sleeve upper end is opening-like, be fixed on water tank (8) end face, within the separation sleeve cavity space and water tank inside be filled with water and pressurized air is isolated;

One limit stoper to upper process is arranged at b, its circumferential surface top of water outlet valve seat (14) that is fixed on water tank (8) bottom surface, and the horizontal degrees of freedom of its restriction drain valve valve head (9), it highly surpasses the possible lift of valve head (9) to upper process.

2, pressure water-saving flushing device for toilet as claimed in claim 1 is characterized in that, described water outlet valve seat end face is from the outstanding vertically upward many limited posts (15) of the circumference end face of valve seat (14) to the limit stoper of upper process.

3, pressure water-saving flushing device for toilet as claimed in claim 1 is characterized in that, described limit stoper is from one section outstanding vertically upward thin-walled short tube of the circumference end face of valve seat (14), offers porous on its perisporium.

4, pressure water-saving flushing device for toilet as claimed in claim 1, it is characterized in that, on the end face of water tank (8), be fixed with a tubular shape automatic air supply device that stretches vertically downward, the hollow fixed length pipe (22) that it includes upper end open and fixes with the end face of water tank, its underpart end has a hole enlargement tube chamber (26), include a small floating ball (27), ball float (27) and the interior path tube chamber of pipe (22) are to forming sealing between the transition shoulder in large-diameter pipe chamber, the inner chamber (26) that large-diameter portion divides is linked up with the space of water tank inside mutually by its tube wall or with the bottom surface, the diameter that highly is slightly larger than ball float (27) of the inner chamber that large-diameter portion divides.

5, pressure water-saving flushing device for toilet as claimed in claim 4, it is characterized in that, described ball float (27) is by constituting sealing between a guiding valve (29) and the described transition shoulder, guiding valve is a bacterium shape, its bar portion inserts in the path tube chamber (28) from bottom to top, and put on ball float (27) bottom surface of bacterium portion.

6, pressure water-saving flushing device for toilet as claimed in claim 1, it is characterized in that, described water intake is located on the bottom surface of water tank (8), water intake is provided with a check valve, it includes the valve seat (33) that is fixed on the water tank bottom surface, it is fastened on the water tank bottom surface by seal ring (34), valve seat part in water tank has the cylindrical shape skirt wall of upwards stretching, extension and end face opening, have water port (36) on the skirt wall, on valve seat (33), be shelved with a spool (39) with one heart, the two constitutes sealing, on the end face in valve seat skirt section, be connected with a cover cap (37), there is a pilot hole in cover cap (37) central authorities, the bar portion of spool passes pilot hole from bottom to top, and spool can only move up and down on valve seat and not have horizontal degrees of freedom.

7, pressure water-saving flushing device for toilet as claimed in claim 1, it is characterized in that, described water discharging valve start-stop device is a hand-pushing lever system, it includes long-armed lever (16), be fixed on bearing (18), an adjustable angle and lockable bearing pin (17) on the water tank end face and one is enclosed within end on the bearing pin and bearing pin is affixed, the other end is held the lever bottom surface the adjustable torsion spring (19) of torsion, and lever (16) flexibly connects mutually with handle knob an opposite end and lifting arm (20).

8, pressure water-saving flushing device for toilet as claimed in claim 7 is characterized in that, the bottom surface of described lever (16) is provided with the adjusting screw (21) of a control lever corner angle.

As any one described pressure water-saving flushing device for toilet in the claim 1 to 8, it is characterized in that 9, the volume of described water tank (8) is 9 to 11 liters, the internal diameter of drain opening is 25 to 30 millimeters.