CN2229009Y

CN2229009Y - Float valve

Info

Publication number: CN2229009Y
Application number: CN 93225255
Authority: CN
Inventors: 吴林南
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-03
Filing date: 1993-03-03
Publication date: 1996-06-12
Anticipated expiration: 2003-03-03

Abstract

The utility model relates to a float ball valve, which is characterized in that a program action mechanism is arranged between a float ball and a valve seat to realize the program action of the float ball valve. The float ball valve can be closed when a water tank is filled with water, and the closed status can be kept untill the water tank level is descended to the lowest water level in operating process of the float ball valve; then, the float ball valve is started smoothly, the water tank is flowed by water and water level is risen, and the float ball valve is cloaed slowly; the float ball valve can be closed when the water tank is filled with water, and thus, the starting and closing of the float ball valve can be circulated endlessly. The water pressure of water-supply pipe network of towns can be regulated and the water-using peak of towns between day and night can be reduced by the utility model, and defect of easy water leakage of ordinary float ball valves can be overcome by full opening, full closing and semi-opening and semi-closing transition state.

Description

Float valve

The utility model relates to a kind of tap water tank float valve of water inlet automatically that is used for.

Existing various float valve can only be used for the automatic water inlet of water tank, the hydraulic pressure that can not participate in the urban water supply pipe network is regulated, if under the normal situation of pipe network water supply, their keying scope is very little, often is in if open the transition operation such of closing, so very easily producing the concentrated wear and the foreign matter of incrustation scale, corrosion, sealing surface stops up, thereby the float valve seepage appears, and water tank phenomenon such as metal run out, and in order to shorten the transition operation such of float valve, can only select when selecting for use greatly, can not select little.

The purpose of this utility model is: a kind of improved float valve is provided, it can participate in the hydraulic pressure of urban water supply pipe network and regulate, reduce the water use peak of cities and towns between round the clock, the switching motion of its each work carries out in the total travel scope, and do not have if open if the transition operation such of closing, thereby overcome the disadvantage of the easy percolating water of float valve.

The technical solution of the utility model is: a kind of float valve comprises the interior spool that moves with the keying of valve seat do of valve body, valve body on valve seat, the valve seat; Be provided with guide pin bushing between described valve body and the spool, frame tightly is enclosed within on the cylindrical of guide pin bushing, and is connected with valve body, and the right side of spool is an arc surface; The lower end of described frame is hinged with shift fork, and the middle part of shift fork is provided with straight pin, and straight pin is positioned on the spool slotted hole that the axis normal with spool is provided with, and the upper-end surface of shift fork is curved; The right-hand member of described frame is hinged with ball lever, and the right-hand member of ball lever is fixed with ball float, and ball lever is fixedly connected with driving link on articulating point, and the left side of driving link is arc shaped surface and tortuous inclined-plane; The upper end of described frame is hinged with reversing piece, the bottom of reversing piece is provided with commutating tooth, commutating tooth curved of shift fork upper end with driving link on the left of arc shaped surface between, the top of reversing piece is provided with the arc opening groove, the arc opening groove is built-in with sliding axle, sliding axle is fixed on the upper end of push rod, and the lower end of push rod is fixed with roller shaft, and roller shaft is between the arc surface and the tortuous inclined-plane on the left of the driving link of spool right-hand member; Be provided with the damping spring pull bar between the lower end of described shift fork and the sliding axle.

The utility model has the advantages that:

1. float valve uses under harsh conditions such as moist, cold and hot, corrosion very easily occurs, produce incrustation scale, because the actuating range of common float valve is little, so corrosion that forms and incrustation scale can not get removing, so just be easy to produce the tight and not enough defect of unlatching of float valve closure.The each switching motion of the utility model all carries out in the total travel scope, makes the corrosion and the incrustation scale that produce constantly obtain removing, thereby can guarantee normally carrying out of switching motion.

2. if there is one in common float valve if open the transition operation such of closing, little or occur under the situation of seepage in user's water consumption under the water tank, this transition operation such will keep for a long time, make the sealing surface of float valve produce concentrated wear, also very easily recruit to the foreign matter obstruction, float valve closes not dead, and water tank will be metalled run out, in order to shorten this transition operation such as far as possible, the specification of common float valve is generally all selected greatlyyer in the use.The utility model does not exist this if open if concentrated wear of float valve sealing surface and foreign matter phenomenon of blocking can not appear in the transition operation such of closing, and specification can obtain smaller when selecting for use.

3. during water use peak every day, common float valve is all opened water inlet, and after the of short duration transient process of process, how much water the user uses, and how much water float valve then advances, and therefore, uses common float valve that the urban water supply pipe network is not had the pressure regulation effect.If replace the utility model, when water use peak arrives, have only the minority float valve to open water inlet, most of float valve still is in closed condition, because it is less that specification of the present utility model can obtain, so flooding time can prolong greatly, if be extensive use of the utility model in cities and towns, just can call the water storage function and the water supply function of thousands of house roof tank and industrial and mining enterprise's water storage tank, participate in the pressure regulation of urban water supply pipe network, make the water use peak of cities and towns between round the clock be reduced to the height limit.

4. the cistern water level of the utility model feedwater change up and down within the specific limits, this just gives water tank and breathes the ＂ function with ＂, and the air in the water tank is brought in constant renewal in, and helps the health of cistern water supply.

The utility model will be further described below in conjunction with drawings and Examples:

Fig. 1, Fig. 2 are structural representation of the present utility model;

Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 are working state schematic representation of the present utility model.

Wherein: 1. valve seat; 2. valve body; 3. spool; 4. guide pin bushing; 5. frame; 6. shift fork; 7. reversing piece; 8. push rod; 9. sliding axle; 10. damping spring pull bar; 11. roller shaft; 12. driving link; 13. ball float; 14. ball lever; 15. arc surface; 16. straight pin; 17. slotted hole; 18. curved; 19. arc shaped surface; 20. tortuous inclined-plane; 21. commutating tooth; 22. arc opening groove.

Embodiment: as shown in Figure 1 and Figure 2, a kind of float valve comprises valve body 2, the valve body 2 interior spools 3 that move with valve seat 1 do keying on valve seat 1, the valve seat 1; Be provided with guide pin bushing 4 between described valve body 2 and the spool 3, frame 5 tightly is enclosed within on the cylindrical of guide pin bushing 4, and is connected with valve body 2, and the right side of spool 3 is an arc surface 15; The lower end of described frame 5 is hinged with shift fork 6, and the middle part of shift fork 6 is provided with straight pin 16, and straight pin 16 is positioned on the spool 3 slotted hole 17 that the axis normal with spool 3 is provided with, and the upper-end surface of shift fork 6 is curved 18; The right-hand member of described frame 5 is hinged with ball lever 14, and the right-hand member of ball lever 14 is fixed with ball float 13, and ball lever 14 is fixedly connected with driving link 12 on articulating point, and the left side of driving link 12 is arc shaped surface 19 and tortuous inclined-plane 20; The upper end of described frame 5 is hinged with reversing piece 7, the bottom of reversing piece 7 is provided with commutating tooth 21, commutating tooth 21 is between the arc shaped surface 19 in curved 18 of shift fork 6 upper ends and driving link 12 left sides, the top of reversing piece 7 is provided with arc opening groove 22, arc opening groove 22 is built-in with sliding axle 9, sliding axle 9 is fixed on the upper end of push rod 8, and the lower end of push rod 8 is fixed with roller shaft 11, and roller shaft 11 is between the tortuous inclined-plane 20 in the arc surface 15 of spool 3 right-hand members and driving link 12 left sides; Be provided with damping pull bar 10 between the lower end of described shift fork 6 and the sliding axle 9.

As shown in Figure 3, during the water tank full water level, ball float 13 rises to highest point, driving link 12 is rotated counterclockwise to limit position, at this moment, the tension of damping spring pull bar 10 is on push rod 8, and driving link 12, push rod 8, roller shaft 11, spool 3 are in the wedging state, valve seat 1 closely contacts with spool 3, the float valve closure.

As shown in Figure 4, cistern water level descends, and driving link 12 clockwise rotates under the action of gravity of ball float 13, promote to move on the push rod 8, the roller of roller shaft 11 rolls on the arc surface 15 of spool 3 right sides, and the wedging state is constant, and float valve still is in closed condition, at this moment, damping spring pull bar 10 elongation energy storages, reversing piece 7 is under the effect of the left-hand component of damping spring pull bar 10 pulling force, and the arc shaped surface 19 that the right flank of commutating tooth 21 is pasting driving link 12 left sides rotates counterclockwise.Cistern water level drops to when minimum, and sliding axle 9 moves to the top position of arc opening groove 22 on the top of reversing piece 7.

As shown in Figure 5, under the effect of the pulling force of damping spring pull bar 10, push rod 8 is that fulcrum turns left with roller shaft 11, make sliding axle 9 walk around dead center position and dead angle area, meanwhile, because the damping function of damping spring pull bar 10, the pulling force of push rod 8 is diminished, spool 3 moves to right under hydraulic action, jack-up roller shaft 11 and push rod 8 make progress, shift fork 6 is put to the right, and float valve is opened slightly, and damping spring pull bar 10 can very fast contraction, sliding axle 9 will push up the upper side to the arc opening groove 22 of reversing piece 7, reversing piece 7 is clockwise rotated, and curved 18 of the shift fork 6 of the left flank of commutating tooth 21 and right pendulum contact, and prevention spool 3 moves to right rapidly under the effect of hydraulic pressure.

As shown in Figure 6, damping spring pull bar 10 slowly shortens, elastic energy discharges gradually, reversing piece 7 rotates counterclockwise again, it is that fulcrum turns left that damping spring pull bar 10 and push rod 8 continue with roller shaft 11, and walks around the dead center position and realize the commutation of first dead point, and shift fork 6 also will continue right pendulum, spool 3 moves to right, and float valve is opened foot reposefully.The commutation of no dead point is a core of the present utility model, because the lifting of water tank inner float ball is extremely mild, any dead point all may be caused weakening of wedging power or be lost, and makes the float valve seepage, and program behavior is obstructed.

As shown in Figure 7, float valve is opened, water tank water intake, ball float 13 rises with water level and the application of force is given driving link 12, driving link 12 promotes reversing piece 7 and shift fork 6 rotates together, and spool 3 moves to left, and float valve is closed gradually, damping spring pull bar 10 elongation energy storages, when water level rises to certain altitude, reversing piece 7 clockwise rotates to a certain angle, when spool 3 moves left to a certain position, sliding axle 9 is under the tension of damping spring pull bar 10, arc opening groove 22 along reversing piece 7 glides, and walks around the dead center position, realizes the commutation of no dead point once more, roller shaft 11 and push rod 8 reenter the wedging state, make float valve get back to closed state shown in Figure 3 again.So go round and begin again, circulation has endlessly realized that float valve is opened and closed program behavior.

The utility model switching motion is steady, does not have water hammer.

Claims

1. float valve, comprise valve body 2, the valve body 2 interior spools 3 that move with valve seat 1 do keying on valve seat 1, the valve seat 1, it is characterized in that: be provided with guide pin bushing 4 between described valve body 2 and the spool 3, frame 5 tightly is enclosed within on the cylindrical of guide pin bushing 4, and be connected with valve body 2, the right side of spool 3 is an arc surface 15; The lower end of described frame 5 is hinged with shift fork 6, and the middle part of shift fork 6 is provided with straight pin 16, and straight pin 16 is positioned on the spool 3 slotted hole 17 that the axis normal with spool 3 is provided with, and the upper-end surface of shift fork 6 is curved 18; The right-hand member of described frame 5 is hinged with ball lever 14, and the right-hand member of ball lever 14 is fixed with ball float 13, and ball lever 14 is fixedly connected with driving link 12 on articulating point, and the left side of driving link 12 is arc shaped surface 19 and tortuous inclined-plane 20; The upper end of described frame 5 is hinged with reversing piece 7, the bottom of reversing piece 7 is provided with commutating tooth 21, commutating tooth 21 is between the arc shaped surface 19 in curved 18 of shift fork 6 upper ends and driving link 12 left sides, the top of reversing piece 7 is provided with arc opening groove 22, arc opening groove 22 is built-in with sliding axle 9, sliding axle 9 is fixed on the upper end of push rod 8, and the lower end of push rod 8 is fixed with roller shaft 11, and roller shaft 11 is between the tortuous inclined-plane 20 in the arc surface 15 of spool 3 right-hand members and driving link 12 left sides; Be provided with damping spring pull bar 10 between the lower end of described shift fork 6 and the sliding axle 9.