CN102384307A - Water level control valve with flow rate continuous control function - Google Patents

Abstract

A water level control valve with a continuous flow control function, including a valve body, a valve core, a valve body cover, a floating ball connection device, and a floating ball. The valve body is provided with a water inlet chamber and a water outlet chamber. The side wall of the water outlet chamber is provided with A water outlet hole, and a return spring is installed inside the end connected to the water inlet chamber, and the valve core is placed inside the water inlet chamber; the water inlet end of the valve core is provided with a stepped hole that cooperates with the return spring, A balance hole is provided on the water outlet surface; the valve body cover is provided with a central hole and a floating ball rod seat; the floating ball connection device includes a valve core push rod and a float ball rod, and one end of the valve core push rod passes through the center The hole is in contact with the spool, and the other end is connected with the float rod through a pin. The beneficial effects of the present invention are: the flow rate of the valve port can be continuously changed according to the water level of the pool; the water inlet cavity and the water outlet cavity form a 45-degree structure, so that the self-weight of the floating ball and the floating ball rod can effectively overcome the friction force of the valve core, and make the valve action more sensitive ,reliable.

Description

Water level control valve with continuous flow control

technical field

The invention relates to a water level control valve with a continuous flow control function, which belongs to the field of electromechanical equipment.

Background technique

At present, whether the water level control valves provided on the market are mechanical or electronic, they are basically switch control methods. The valve is in two states of "on" and "off", and can only control the water level in two states of "high" and "low". situation. In some special occasions with high water level control requirements, it is necessary to control the water output of the valve to adapt to the continuous change of water level. Therefore, it is an important research topic to develop a water level control valve with the function of continuous flow control.

Contents of the invention

Aiming at the problem that the current water level control valve cannot accurately control the water output of the valve, the invention proposes a water level control valve with the function of continuous flow control.

The water level control valve with continuous flow control function according to the present invention includes a valve body, a valve core, a valve body cover, a floating ball connection device, and a floating ball. The valve body is provided with a water inlet chamber and a water outlet chamber, and is characterized in that : The side wall of the water outlet chamber is provided with a water outlet hole, and a return spring is installed inside the end connected to the water inlet chamber, the valve core is placed inside the water inlet chamber, and the end of the return spring is inserted into the valve The water inlet end of the valve core; the water inlet end of the valve core is provided with a step hole that matches the return spring, and the water outlet end is provided with a balance hole; the valve body cover is provided with a center hole and a float rod seat; the float The ball connection device includes a valve core push rod and a floating ball rod. One end of the valve core push rod passes through the central hole to contact the valve core, and the other end is connected to the floating ball rod through a pin shaft. One end of the rod is connected and hinged on the rod seat of the floating ball, and the other end is connected to the floating ball.

The axis of the water inlet chamber and the water outlet chamber forms an angle of 45 degrees.

A trapezoidal water channel is arranged along the circumference of the water outlet hole.

The valve core is provided with strip-shaped water outlet grooves in the circumferential direction, and sealing grooves are arranged on both sides of the water outlet grooves.

A bar-shaped hole is arranged on the float rod, and the pin shaft is installed in the bar-shaped hole.

A closed groove is opened in the circumferential direction at the contact position between the valve core push rod and the central hole, and a sealing ring is installed.

The end surface of the valve body cover in contact with the valve body is provided with a sealing groove in the circumferential direction.

When in use, connect the water inlet of the valve body to the water supply pipeline, and the water outlet hole is below the side of the water outlet chamber; the valve core slides along the wall in the water outlet chamber; the valve core guides the inlet water to the gap between the valve core and the valve body cover through the balance hole space, so that the two ends of the valve core are balanced by water pressure, and the valve core is prevented from being affected by additional water pressure; when the water in the pool is at a low water level, the float is also at a low level. The ejector rod of the core moves towards the valve body, pressing the valve core to the bottom of the water outlet cavity of the valve body, so that the water outlet groove on the side wall of the valve core is aligned with the water outlet hole on the valve body, and the throttling area of the water outlet hole is the largest, and the water supply is also the largest; After the water level of the pool rises, the floating ball rises, driving the floating ball rod to swing upwards, the valve core moves upwards under the action of the return spring, the positions of the water outlet tank and the water outlet hole are staggered, the throttle area is reduced, and the water supply flow rate is reduced; when the floating ball rises to At the highest position, the water outlet groove of the valve core is completely staggered from the water outlet hole of the valve body, and the valve is closed. The pool water level descending process is just opposite to the aforementioned process.

Beneficial effects of the present invention:

(1) The present invention controls the direction of water flow by means of the axial hole of the spool, and connects the two ends of the spool, which greatly reduces the instability of the spool movement caused by the transient and steady-state hydraulic forces. Make the valve get better dynamic and static stability.

(2) The present invention adopts the method of opening the water tank on the side wall of the valve core and cooperates with the water outlet hole of the valve body to control the throttling area, which improves the controllability of the valve port and makes the flow rate of the valve port continuously change according to the water level of the pool.

(3) The present invention adopts a valve body structure with a 45-degree angle between the water inlet chamber and the water outlet chamber, so that the swing range of the float rod is between 45 degrees and 90 degrees, and the self-weight of the float ball and the float rod can effectively overcome the friction force of the valve core The function makes the valve action more sensitive and reliable.

Description of drawings

Figure 1 is a structural schematic diagram of the low water level of the water level control valve.

Fig. 2 is a schematic diagram of the high water level of the water level control valve.

Figure 3 is a schematic diagram of the valve core structure.

Detailed ways

Further illustrate the present invention below in conjunction with accompanying drawing

Referring to the attached picture:

The water level control valve with continuous flow control function according to the present invention includes a valve body 1, a valve core 2, a valve body cover 3, a float connection device 4, and a float 5, and the valve body 1 is provided with a water inlet chamber 11 . The water outlet chamber 12, the side wall of the water outlet chamber 12 is provided with a water outlet hole 121, and a return spring 122 is installed inside the end connected to the water inlet chamber 11, the valve core 2 is placed inside the water inlet chamber 11, The end of the return spring 122 is inserted into the water inlet end of the spool 2; the water inlet end of the spool 2 is provided with a step hole 21 cooperating with the return spring, and a balance hole 22 is provided on the water outlet end; the valve The body cover 3 is provided with a central hole 31 and a floating ball rod seat 32; the floating ball connection device 4 includes a valve core push rod 41 and a floating ball rod 42, and one end of the valve core push rod 41 passes through the central hole 31 and the floating ball rod 42. The spool 2 is in contact, and the other end is connected to the float rod 42 through a pin shaft 43 , one end of the float rod 42 is hinged on the float rod seat 32 , and the other end is connected to the float ball 5 .

The axes of the water inlet chamber 11 and the water outlet chamber 12 form an angle of 45 degrees.

A trapezoidal water channel 1211 is provided along the circumference of the water outlet hole 121 .

The valve core 2 is provided with strip-shaped water outlet grooves 22 in the circumferential direction, and sealing grooves 23 are arranged on both sides of the water outlet groove 22 .

The float rod 42 is provided with a bar-shaped hole 421 , and the pin shaft 43 is installed in the bar-shaped hole 421 .

A closed groove 411 is formed in the circumferential direction at the contact position between the valve core push rod 41 and the central hole 31 , and a sealing ring is installed therein.

A sealing groove 33 is provided in the circumferential direction of the end surface of the valve body cover 3 in contact with the valve body 1 .

When in use, the water inlet of the valve body is connected to the water supply pipeline, and the water outlet hole 121 is under the side of the water outlet chamber 12; the valve core 2 slides along the wall in the water outlet chamber 12; the valve core 2 leads the inlet water to the valve core 2 through the balance hole 22 The space between the valve body cover and the valve body cover 3 balances the water pressure on both ends of the valve core 2, and prevents the valve core 2 from being subjected to additional water pressure; when the water in the pool is at a low water level, the float 5 is also at a low 5 and the weight of the float rod 42, the spool ejector rod 41 moves into the valve body 1, and presses the spool 2 to the bottom of the water outlet cavity 12 of the valve body, so that the water outlet groove 22 on the side wall of the spool 2 is aligned with the valve body 1. The water outlet holes 121 on the valve body are aligned, and the water outlet holes 121 have the largest throttling area and the largest water supply; Movement, the positions of the water outlet groove 22 and the water outlet hole 121 are staggered, the throttle area is reduced, and the water supply flow is reduced; when the float rises to the highest position, the valve core water outlet groove 22 and the valve body water outlet hole 121 are completely staggered, and the valve is closed. The pool water level descending process is just opposite to the aforementioned process.

The content described in the embodiments of this specification is only an enumeration of the implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms stated in the embodiments. The protection scope of the present invention also extends to the field Equivalent technical means that the skilled person can think of based on the concept of the present invention.

Claims (7)

1. the altitude valve that has flow continuous control function; Comprise valve body, spool, body cap, ball float connection set, ball float; Said valve body is provided with water-inlet cavity, water chamber, it is characterized in that: said water chamber sidewall is provided with osculum, and the inner Returnning spring of installing of an end that is connected with said water-inlet cavity; Said spool places said water-inlet cavity inner, and the end of said Returnning spring inserts the feed-water end of said spool; Said spool feed-water end is provided with the step hole that cooperates with said Returnning spring, and the water outlet end face is provided with equalizing orifice; Said body cap is provided with center hole and ball float pole socket; Said ball float connection set comprises spool push rod, ball lever; Said spool push rod one end passes said center hole and contacts with said spool; The other end is connected with said ball lever through bearing pin, and said ball lever one end connects hinge joint on said ball float pole socket, and the other end connects ball float.

2. the altitude valve with flow continuous control function as claimed in claim 1 is characterized in that: said water-inlet cavity and said water chamber axis are and are miter angle.

3. the altitude valve with flow continuous control function as claimed in claim 2 is characterized in that: be axially arranged with water-flowing trough along said osculum.

4. the altitude valve with flow continuous control function as claimed in claim 3 is characterized in that: said spool is circumferentially with the bar shaped effluent trough, and place, effluent trough both sides is provided with seal groove.

5. the altitude valve with flow continuous control function as claimed in claim 4 is characterized in that: said ball lever is provided with bar hole, and said bearing pin is loaded in the said bar hole.

6. the altitude valve with flow continuous control function as claimed in claim 5 is characterized in that: said spool push rod and said center hole contact position are circumferentially offered enclosed slot, and seal ring is housed.

7. the altitude valve with flow continuous control function as claimed in claim 6 is characterized in that: said body cap is circumferentially with seal groove with the end face that said valve body contacts.

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