CN2495858Y - Structure-improved liquid level control valve - Google Patents

Abstract

The utility model provides a structure-improved liquid level control valve, comprising a three-way valve whose upper end is internally spirally provided with a valve unit. Wherein, the valve unit is further provided with an ejection post which passes through a fixing ring that is spirally fixed on the valve, the end of the ejection post is provided with a valve, and a spring is arranged between the valve and the fixing ring, and the valve just seals the valve opening at the lower end of the three-way valve; moreover, a push rod is arranged at the lower side of the valve by use of pivot, with one end connected with a float ball and an assistant hammer that is connected with the float ball by use of rope, and while the other end is connected with a top rod by use of pivot. Besides, the upper end of the top rod is arranged against the bottom of the valve. The utility model can reach the aim of controlling liquid level and at the same time, has characteristics of power-saving effect and simple structure.

Description

Improve the fluid level control valve of structure

Technical field

The utility model belongs to the control valve field, relates in particular to a kind of fluid level control valve that improves structure.

Background technique

Fluid level control valve structure known now, nothing more than the fluid level controller control liquid level change situation that has by electronic type, then nationality is by the circuit design of circuit switching, to reach the purpose of control liquid level, or with the combination of mechanical type float-ball type sealing valve and pressure switch, and form identical liquid level control purpose.Yet, though the fluid level controller of electronic type can be detected liquid level change observantly and starve and make accurate control, but because of its structure comparatively the installing of precision and electric loop the circuit of certain-length often will be arranged, so on cost, often will pay considerable expense, and environment being set and belonging to moist place because of effluent trough, not only not good and cause construction to be difficult for for fear of landform easily, and can cause short circuit because of moisture, and form detecting error and electrical equipment malfunction and damage etc.; The combination of simple mechanical formula float-ball type sealing valve and pressure valve, because its function mode and utilize ball float in liquid, to have buoyancy, make the sealing valve when two position, present the make and break phenomenon, so its simple and convenient part is arranged in using, yet because of the fluctuating of only running jointly by ball float of sealing valve drives, when the liquid level reduction, ball float is descended, when the pulling water valve is opened, carry liquid in pipe just can flow out, cause hydraulic pressure to descend, and then make pressure switch open the power supply of pump, make pump supply transfusion fluid to aqua storage tank, therefore as long as water level falls slightly, the sealing valve just can be opened, cause pressure switch often to descend because of hydraulic pressure, and open the pump running often, and form when reaching urgent need water supply stage far away, just often open pump and carry liquid, form unnecessary power wastage, and cause parts to quicken to damage.

Summary of the invention

The utility model provides a kind of fluid level control valve that improves structure at the shortcoming of above-mentioned existence, it mainly is at the mid-valve mechanism that is provided with of three-way pipe, nationality by auxiliary weight and ball float when the low liquid level, can form moment loading to push rod, push rod can be pushed away open valve, make flow of liquid toward liquid outlet, when liquid inlet pipe hydraulic pressure descended, pressure switch can be opened motor power, make pump extract liquid to liquid storage tank, liquid storage tank liquid reaches when expiring liquid level, and the valve nationality is pushed away it toward valve port by the spring on the valve sets, blocks flow of liquid toward liquid storage tank, liquid inlet pipe is after valve is blocked valve port, intraluminal fluid voltage rise height, make the pressure switch perception after, can cut off motor power, make pump stop to extract liquid, so it is the dual control in conjunction with hydraulic pressure and liquid level, makes its installing distribution more easy, and can reach the effect and the purpose of power saving again.

Description of drawings

Fig. 1 is the three-dimensional exploded view of model utility;

Fig. 2 is the phase diagram of the utility model in full liquid level;

Fig. 3 is the phase diagram of the utility model in low liquid level;

Fig. 4 is the basic distribution piping diagram on using.

Embodiment

The utility model is described in further detail below in conjunction with drawings and the specific embodiments.

As shown in Figure 1, 2, the utility model improves the fluid level control valve of structure, is a kind of fluid level control valve A architecture advances, mainly is to be made of valve body 1, valve 2, push rod 3, pole 4, ball float 5 and auxiliary weight 54; Wherein:

Valve body 1, be to be the threeway tubulose, its mouth of pipe inboard, upper end has pipe tooth 120, the middle connecting leg that protrudes is the liquid entering hole 10 that outer tube wall has pipe tooth 100, the lower end is a liquid outlet 11, liquid outlet 11 outside tube walls convex with two lug plates 110, each plate face is equipped with an open-work 111, and be provided with a groove 112 between liquid outlet 11 tube walls that two lug plates are 110, when push rod 3 nationalitys are fixed in 110 of two lug plates by screw 34 and nut 35 pivots, offering of nationality groove 112 and make push rod 3 can promote to be articulated in its terminal push rod 32 neatly, lifting freely in liquid outlet 11 is a valve port 13 being positioned at the liquid outlet 11 upper end mouths of pipe simultaneously.

Valve sets 2, be that the retaining ring 20 that an outer shroud has a thread 201 is sheathed on the projection 21 upper end nose bars 210, make the retaining ring 20 can free slippage up and down on the nose bar 210, and projection 21 lower end build-ins have a plectane 23, the sticking rubber sealing skin 24 that is provided with in plectane 23 lower ends, make plectane 23 and 24 one-tenth one valves 25 of rubber sealing skin, between retaining ring 20 and plectane 23, establishing a spring 22 then, and spring 22 two ends are peaked at therebetween.

Push rod 3 is to establish screw 30 in the cylindrical end, but pole 4 one end spiral shells are established in it, and offers an open-work 31 in the centre, and end then is solidly connected push rod 32 pivots with latch 33 in addition, makes push rod 32 can change pendulum flexibly.

Pole 4 is to be used for connecting push rod 3 and ball float 5.

Ball float 5 and auxiliary weight 54, wherein ball float 5 is the circular spheroid of a closed hollow, the footpath holds each prominent a ball navel to be arranged, in be provided with the ball navel 51 of female thread, can spiral shell be solid mutually with pole 4 one ends, and the surface has the ball navel 52 of chase, can be solid for rope 54, another auxiliary weight 54 be a closed cylinder, and inside is filled with the liquid of constant weight, there is a protruding navel 540 upper end, offers an aperture 541 on the protruding navel 540.

So nationality is combined into a fluid level control valve A by above-mentioned member with it, the situation of its Assembly is as follows: valve sets 2 is fixed in the valve body 1 upper end mouth of pipe with retaining ring 20, and push rod 3 sees through open-work 111 and open-work 31 with screw 34, solid with nut 35 spiral shells, make push rod 3 hub settings in 110 of two lug plates, push rod 3 is connected with ball float 5 with pole 4, and auxiliary weight 54 is connected with ball float 5 with rope 53.Please consult Fig. 2 and shown in Figure 4 more simultaneously, the application of fluid level control valve A, be to be connected in liquid inlet pipe 61 ends, through other equipment such as pressure switch 62, accumulator 63, pressure gauge 64, pump 65, motor 66 ... Deng cooperatively interacting of device, and can reach the purpose of controlling liquid level easily; Therefore, liquid storage tank 6 liquid levels drop to when hanging down liquid level, the tenesmus weight that adds auxiliary weight 54 because of ball float 5 produces a pulling force to push rod 3, and make push rod 3 the other ends form the moment of ejection upwards, make push rod 3 have enough thrust to promote push rod 32 and overcome liquid entering hole 10 hydraulic pressure and spring 22 elastic force, make valve 25 leave valve port 13, liquid entering hole 10 liquid just flow to liquid outlet 11 Way outs, this moment, the hydraulic pressure pressure in the pipeline descended and after pressure gauge 64 is detected, promptly can make pressure switch 62 meeting starting motors 66 power supplys, make pump 65 extract liquid to liquid storage tank 6, to replenish the amount of liquid of liquid storage tank 6 deficiencies.

Consult Fig. 3 and shown in Figure 4 again, when the liquid level in the liquid storage tank 6 rises gradually, ball float 5 can rise along with liquid, though and auxiliary weight 54 is when being dipped in liquid, but because of the proportion of auxiliary weight 54 is a bit larger tham liquid specific gravity, so still can form necessary moment loading to push rod 3, the state that valve port 13 still is held open, but, water level make ball float 5 also when raising when raising gradually, because push rod 3 can also descend push rod 32, and then make the original valve that withstands 25 also at leisure because of being subjected to the pushing tow of spring 22 elastic force gradually along with the rising swing of ball float 5 thereupon, valve 25 can be closed valve port 13 gradually, go in the liquid storage tank 6 and stop water supply; Liquid storage tank 6 is after keeping certain full liquid level and valve port 13 sealings this moment, and the hydraulic pressure in the liquid inlet pipe 61 can raise, and makes pressure switch 62 perceive the high hydraulic pressure of liquid inlet pipe 61, and cuts off motor 66 power supplys, makes pump 65 stop to extract the action of liquid.

Therefore, nationality is by the structural design of above-mentioned creation fluid level control valve A, though the water level in the liquid storage tank 6 is descended gradually, but before the height of the low liquid level of no show, be to make pump 65 start, and its controlling method is to adopt liquid inlet pipe 61 intraluminal fluids to press variation to control, and cooperate the control of ball float 5 and auxiliary weight 54 to reach, institute installs simple and easy so that possess pressure type control, have and in conjunction with the in good time advantage of the power saving of primer pump 65 just of mechanical type, make the control of liquid level more meet installing person and user's actual demand.

Claims (1)

1, a kind of fluid level control valve that improves structure, it is characterized in that: it interior spiral shell of upper pipes that comprises a three way valve is established a valve sets, valve sets is again one to be fixed on the retaining ring of valve body and to wear a projection, and establish a valve at the projection end, and being provided with spring between valve and retaining ring peaks at therebetween, valve just in time closes the valve port of three way valve lower end, in the lower side of the valve body push rod that is pivoted, the auxiliary weight that one termination of push rod is provided with ball float and is connected with rope with ball float, the other end in push rod articulates a push rod again, and the push rod upper end withstands on the bottom surface of valve.

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