Novel remote control liquid level self-control floating ball valve

Abstract

The utility model relates to the technical field of floating ball valves, in particular to a novel remote control liquid level self-control floating ball valve, which comprises a valve body, a valve seat is arranged in the valve body, a water inlet and a water outlet are respectively arranged at two ends of the valve body, a control port is arranged at the upper end of the valve body, and a valve cover is arranged on the valve body and positioned at the control port. A control opening is formed in the valve body, an upper guide part capable of sliding up and down is arranged in the control opening, a clamping part is arranged on the upper guide part, a membrane is clamped between the upper guide part and the clamping part, the peripheral edge of the membrane is clamped between the valve body and the valve cover, and a guide protruding part is formed in the middle of the upper end of the upper guide part upwards. A plurality of clamping annular grooves are formed in the lower end face of the clamping piece. The technical problem that the service life of a diaphragm of an existing floating ball valve is short is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of float ball valve, especially to a novel remote control liquid level automatic control float ball valve. BACKGROUND

[0002] At present, the float ball valve is a commonly used piece for controlling the opening and closing of the water inlet pipe in the water level tank, including a main valve and a float ball control valve communicated with the upper cavity water outlet of the main valve, and the float ball control valve is connected with the float ball. When the water level rises to the closing position of the float ball control valve, the main valve is closed, and the water inlet is stopped. At present, there are many improvements based on the float ball valve, such as a stable pressure remote control float ball valve disclosed in Chinese patent publication No. CN110107730A. The bypass valve is used as a bypass pipe of the self-closing valve, and the self-closing valve and the bypass pipe supply water from the upstream cavity to the control chamber. The control chamber supplies water to the float ball valve through the pressure reducing valve. The float ball and the pressure reducing valve control the opening and closing of the float ball valve and the size of the opening degree in the ways of making force upward and downward and setting pressure respectively. The opening and closing state and the size of the opening degree of the float ball valve affect the size of the flow of the hydraulic control valve downstream cavity. The self-closing valve controls the size of the flow and pressure of the upstream cavity to the control chamber according to the size of the upstream cavity pressure, so as to affect the size of the downstream cavity flow to achieve the purpose of stabilizing the upstream cavity pipe network pressure. When the float ball is pulled by the downward force of the liquid level, the float ball valve is opened. When the float ball is pushed by the upward force of the liquid level, the float ball valve is closed, so as to realize the purpose of controlling the upper and lower limits of the liquid level.

[0003] However, the diaphragm of the existing remote control float ball valve needs to be deformed to a certain extent when opening and closing, which is easy to cause fatigue at the bending part, especially when the diaphragm needs to be clamped, the fatigue appears faster, thereby reducing the service life. UTILITY MODEL CONTENTS

[0004] Therefore, in view of the above problems, the utility model provides a novel remote control liquid level automatic control float ball valve, which solves the technical problem of low service life of the diaphragm of the existing float ball valve.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: A novel remote control liquid level self -control float ball valve, including the valve body, be provided with the valve seat in the valve body, the both ends of valve body are provided with water inlet and water outlet respectively, be provided with the control port on the valve body upper end, be provided with the valve cover on the control port of valve body, be provided with the upper guide of up and down slideable in the control port, be provided with the clamping piece on the upper guide, the diaphragm is clamped between the upper guide and clamping piece, the periphery of diaphragm is clamped between valve body and valve cover, be provided with the spring of connecting between the clamping piece and the inner wall of valve cover, the middle part of upper guide, clamping piece, diaphragm is provided with the valve stem, be provided with the communication hole of intercommunication water inlet and water outlet on the valve seat, the lower end of valve stem extends through the communication hole, be provided with the valve flap assembly for closing the communication hole on the lower end of valve stem, the valve cover and diaphragm are closed and form control chamber between, the water inlet end of valve body and control chamber are connected through the first communication pipe, be provided with needle valve on the first communication pipe, water outlet is connected with a water storage device, be provided with the float ball valve on the liquid level of water storage device, the second communication pipe is communicated between the float ball valve and control chamber, be provided with the ball valve on the second communication pipe, the upper end middle part of upper guide forms the guide convex part upwards, be provided with a plurality of clamping annular grooves on the lower end surface of clamping piece.

[0006] Further, the valve flap assembly includes a valve flap body, a lower guide, and a lower sealing element, which are sleeved on the valve stem and located at the upper end of the valve seat, the lower guide is arranged in the communication hole for guiding, and the sealing element is clamped between the valve flap body and the lower guide.

[0007] Further, the lower end surface of the valve flap body is provided with a valve flap lower recess, and the lower sealing element is arranged in the valve flap lower recess.

[0008] Further, the valve flap lower recess is provided with a plurality of valve flap annular grooves.

[0009] Further, the lower end surface of the lower sealing element is provided with a sealing protrusion, the valve seat is provided with a seat recess, and the sealing protrusion is in abutment with the seat recess.

[0010] Further, the upper end of the valve flap body abuts against the lower end of the upper guide, the upper end of the valve flap body is provided with a valve flap upper recess, and the valve flap upper recess is provided with an upper sealing element for sealing the valve flap body and the upper guide.

[0011] Further, a deformation gap is formed between the upper guide except the guide convex part and the diaphragm, and the height of the deformation gap is 1-2 mm.

[0012] Further, a flexible gasket is arranged in the deformation gap close to the guide convex part, and the outer diameter of the flexible gasket is smaller than the outer diameter of the clamping piece.

[0013] By adopting the foregoing technical scheme, the utility model has the beneficial effects that:

[0014] 1、In the scheme, the upper guide piece and the clamping piece are used to clamp the center of the diaphragm, and the valve body and the valve cover are used to clamp the periphery of the diaphragm, so that the stability is realized, and the upper end of the upper guide piece is formed with a guide convex part in the middle part upward, a deformation gap is formed between the upper guide piece and the diaphragm except the guide convex part, the deformation gap can effectively realize the displacement of the diaphragm when the diaphragm is deformed, so that the fatigue performance of the diaphragm is effectively reduced when the diaphragm is deformed at the clamping position, and the service life of the diaphragm is effectively improved when the diaphragm is deformed.

[0015] 2、The valve clack assembly is provided, which can realize the effective sealing structure of the valve clack assembly, so that the effective cooperation with the valve seat is realized, and better opening and sealing are realized. The valve clack lower recess is provided, the lower sealing element is arranged in the valve clack lower recess, so that the stability of the lower sealing element after being extruded is effectively ensured, and the change between the deformation and the recovery is limited by the valve clack lower recess, so that the better form is fixed. In addition, the plurality of valve clack annular grooves are provided, which are also beneficial to the deformation demand of the lower sealing element, so that the stability of the lower sealing element is ensured. The sealing convex part is provided, which can realize the sealing strengthening effect, and the deformation is mainly concentrated on the sealing convex part, so that the sealing strengthening effect is effectively realized, and the service life of the lower sealing element is effectively improved. The upper end of the valve clack body is in abutment with the lower end of the upper guide piece, the valve clack upper recess is arranged on the upper end of the valve clack body, and the upper sealing element for realizing the sealing between the valve clack body and the upper guide piece is arranged on the valve clack upper recess, so that the whole valve rod is effectively supported, the mutual limitation between the valve clack assembly and the upper guide piece is realized, and the stability of the whole mechanism is effectively improved.

[0016] 3、The clamping annular groove is provided, which can realize the effective deformation buffer of the diaphragm, and the deformation gap is provided, which can effectively realize the better deformation space of the diaphragm, and the diaphragm is not unstable due to the too large gap. In addition, the flexible gasket is provided, which can effectively realize the deformation buffer of the diaphragm. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the utility model.

[0018] Figure 2 is Figure 1 is an enlarged view of A in

[0019] Figure 3 is Figure 1 is an enlarged view of B in

[0020] REFERENCE SIGNS:

[0021] 1, valve body; 11, water inlet; 12, water outlet; 13, control port; 14, control chamber; 2, valve seat; 21, communication hole; 22, seat body recess; 3, valve cover; 41, upper guide; 42, clamping piece; 43, diaphragm; 44, deformation gap; 45, flexible gasket; 411, guide convex; 421, clamping annular groove; 5, spring; 6, valve stem; 7, valve flap assembly; 71, valve flap body; 72, lower guide; 73, lower sealing piece; 711, valve flap lower recess; 712, valve flap annular groove; 713, valve flap upper recess; 714, upper sealing piece; 731, sealing convex; 81, first communication pipe connection; 82, needle valve; 83, float valve; 84, second communication pipe; 85, ball valve; 9, water storage device. DETAILED DESCRIPTION

[0022] The utility model is further explained in connection with the drawings and specific implementation.

[0023] Reference Figures 1 to 3 The embodiment provides a novel remote control liquid level self-control float valve, which comprises a valve body 1, a valve seat 2 is arranged in the valve body 1, water inlets 11 and water outlets 12 are arranged at the both ends of the valve body 1 respectively, a control port 13 is arranged on the upper end of the valve body 1, a valve cover 3 is arranged on the valve body 1 at the control port 13, an upper guide 41 that can slide up and down is arranged in the control port 13, a clamping piece 42 is arranged on the upper guide 41, a diaphragm 43 is clamped between the upper guide 41 and the clamping piece 42, the periphery of the diaphragm 43 is clamped between the valve body 1 and the valve cover 3, a spring 5 is connected and arranged between the clamping piece 42 and the inner wall of the valve cover 3, a valve stem 6 is arranged through the middle part of the upper guide 41, the clamping piece 42 and the diaphragm 43, a communication hole 21 that communicates the water inlets 11 and the water outlets 12 is arranged on the valve seat 2, the lower end of the valve stem 6 extends through the communication hole 21, a valve flap assembly 7 for closing the communication hole 21 is arranged on the lower end of the valve stem 6, a control chamber 14 is closed between the valve cover 3 and the diaphragm 43, a first communication pipe 81 is connected between the water inlet 11 end of the valve body 1 and the control chamber 14, a needle valve 82 is arranged on the first communication pipe, the water outlet 12 is connected with a water storage device 9, a float valve 83 is arranged on the liquid surface of the water storage device 9, the float valve 83 is communicated with the control chamber 14 through a second communication pipe 84, a ball valve 85 is arranged on the second communication pipe 84, a guide convex 411 is formed on the upper end of the upper guide 41, a plurality of clamping annular grooves 421 are arranged on the lower end surface of the clamping piece 42.

[0024] The above-mentioned needle valve 82 and float valve 83 are conventional devices in the technical field. The above-mentioned water outlet 12 and water storage device 9 are communicated with each other.

[0025] The valve clack assembly 7 comprises a valve clack body 71 sleeved on the valve stem 6 and located at the upper end of the valve seat 2, a lower guide 72 sleeved on the valve stem 6 and arranged in the communication hole for guiding, and a lower sealing member 73 sleeved on the valve stem 6 and clamped between the valve clack body 71 and the lower guide 72. The lower end surface of the valve clack body 71 is provided with a valve clack lower recess 711, and the lower sealing member 73 is arranged in the valve clack lower recess 711. A plurality of valve clack annular grooves 712 are arranged on the valve clack lower recess 711. The lower end surface of the lower sealing member 73 is provided with a sealing protrusion 731, the valve seat 2 is provided with a seat body recess 22, and the sealing protrusion 731 abuts against the seat body recess 22. The upper end of the valve clack body 71 abuts against the lower end of the upper guide 41, the upper end of the valve clack body 71 is provided with a valve clack upper recess 713, and the valve clack upper recess 713 is provided with an upper sealing member 714 for sealing the valve clack body 71 and the upper guide 41.

[0026] The upper guide 41 is provided with a deformation gap 44 between the guiding protrusion 411 and the diaphragm 43, and the height of the deformation gap 44 is 1-2 mm, and the specific size can be selected according to actual needs, for example, 1 mm, 1.5 mm or 2 mm. The deformation gap 44 is provided with a flexible gasket 45 close to the guiding protrusion 411, and the outer diameter of the flexible gasket 45 is smaller than the outer diameter of the clamping member 42, preferably, the outer diameter of the flexible gasket 45 is 2 / 3 to 4 / 5 of the outer diameter of the clamping member 42.

[0027] When the pipeline is supplied with water from the water inlet, since the needle valve, the ball valve and the float ball valve are always open, water enters the water storage device through the needle valve, the control chamber, the ball valve and the float ball valve, at this time, the control chamber does not form pressure, the valve stem drives the valve clack assembly to move upwards, the water inlet is communicated with the water outlet, water supply is realized, and water flows into the water storage device through the water inlet and the water outlet.

[0028] When the water surface of the water storage device rises to a set height, the float ball rises to close the float ball valve, the water pressure in the control chamber rises, the diaphragm is pushed to drive the valve stem to move downwards, so as to drive the valve clack assembly to close the communication hole in the valve seat, closing is realized, and water supply is stopped.

[0029] When the water surface falls, the float ball valve is re-opened, the water pressure in the control chamber falls, the diaphragm is re-opened, and water supply is continued, so that the set height of the liquid surface is maintained.

[0030] Of course, a certain time delay mechanism can also be arranged, so that the water surface is higher than the set height by a certain value.

[0031] The beneficial effects of the utility model are as follows:

[0032] 1. In this solution, the upper guide and the clamping member are used to clamp the center of the diaphragm, and the valve body and the valve cover are used to clamp the periphery of the diaphragm, thereby achieving its stability. In addition, a guide protrusion is formed upward at the middle part of the upper end of the upper guide member, and a deformation gap is formed between the part of the upper guide member except the guide protrusion and the diaphragm. This deformation gap can effectively enable the diaphragm to give way when deforming, thereby effectively reducing the reduction in fatigue performance of the diaphragm when deforming in the clamping position, thereby effectively improving the service life of the diaphragm when deforming.

[0033] 2. The setting of the valve flap assembly can realize that the valve flap assembly forms a more effective sealing structure, thereby realizing effective cooperation with the valve seat. Thus, better opening and sealing can be achieved. Among them, the setting of the recess under the valve flap realizes that the lower seal is set in the recess under the valve flap, thereby effectively ensuring the stability of the lower seal after being squeezed, and the transition between deformation and recovery is restricted by the recess under the valve flap, thereby achieving better shape fixation. In addition, the setting of multiple valve flap annular grooves is also conducive to the deformation requirements of the lower seal, thereby ensuring the stability of the lower seal. Among them, the setting of the sealing protrusion can achieve the effect of sealing reinforcement, and the deformation is mainly concentrated on the sealing protrusion, effectively achieving the effect of sealing reinforcement, and effectively improving the service life of the lower seal. Among them, the upper end of the valve flap body and the lower end of the upper guide member are pressed against each other, and a valve flap upper recess is provided on the upper end of the valve flap body, and an upper sealing member for sealing the valve flap body and the upper guide member is provided on the valve flap upper recess, so that the entire valve stem is effectively supported, and mutual restriction between the valve flap assembly and the upper guide member is achieved, thereby effectively improving the stability of the entire mechanism.

[0034] 3. The setting of the clamping annular groove can effectively buffer the deformation of the diaphragm, and the setting of the deformation gap can effectively ensure that the diaphragm has a good deformation space and will not cause instability of the diaphragm due to a too large gap. In addition, the setting of the flexible gasket can effectively buffer the deformation of the diaphragm.

[0035] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the form and details of the present invention without departing from the spirit and scope of the present invention as defined by the appended claims, and all of these changes are within the scope of protection of the present invention.

Claims

1. A new type of remote control liquid level automatic floating ball valve, characterized in that: The utility model provides a valve, including the valve body that is provided with the valve seat in, the water inlet and the water outlet are provided with respectively in both ends of valve body, the control port is provided with on the upper end of valve body, the valve cover is provided with on the upper end of valve body in control port, the upper guide is provided with in control port and can slide up and down, the clamping piece is provided with on the upper guide, the diaphragm is clamped between the upper guide and clamping piece, the spring is connected and is provided with between the clamping piece and the inner wall of valve cover, the middle part of upper guide, clamping piece, diaphragm is provided with valve rod, the valve seat is provided with the communicating hole that communicates water inlet and water outlet, the lower end of valve rod extends through the communicating hole, the valve clapper assembly is provided with on the lower end of valve rod and is used for closing the communicating hole, the control chamber is closed between the valve cover and diaphragm, the first communicating pipe is connected between the water inlet end of valve body and control chamber, the needle valve is provided with on the first communicating pipe, the water storage device is connected to the water outlet, the float ball valve is provided with on the liquid level of water storage device, the second communicating pipe is communicated between the float ball valve and control chamber, the ball valve is provided with on the second communicating pipe, the upper end middle part of upper guide forms the guide convex part upwards, the deformation gap is formed between the part of upper guide except guide convex part and diaphragm.

2. A new type of remote control liquid level self-control floating ball valve according to claim 1, characterized in that: The valve clapper assembly includes a valve clapper body, a lower guide, and a lower sealing element, wherein the valve clapper body is sleeved on the valve rod and located at the upper end of the valve seat, the lower guide is arranged in the communicating hole for guiding, and the lower sealing element is clamped between the valve clapper body and the lower guide.

3. A new type of remote control liquid level self-control floating ball valve according to claim 2, characterized in that: The lower end surface of the valve clapper body is provided with a valve clapper lower recess.

4. A new type of remote control liquid level self-control floating ball valve according to claim 3, characterized in that: The valve clapper lower recess is provided with a plurality of valve clapper annular grooves.

5. A new type of remote control liquid level self-control floating ball valve according to claim 2, characterized in that: The lower end surface of the lower sealing element is provided with a sealing protrusion, and the valve seat is provided with a seat body recess, wherein the sealing protrusion is in abutment with the seat body recess.

6. A new type of remote control liquid level self-control floating ball valve according to claim 2, characterized in that: The upper end of the valve clapper body is in abutment with the lower end of the upper guide, the upper end of the valve clapper body is provided with a valve clapper upper recess, and the valve clapper upper recess is provided with an upper sealing element for sealing the valve clapper body and the upper guide.

7. A new type of remote control liquid level self-control floating ball valve according to claim 1, characterized in that: The lower end surface of the clamping piece is provided with a plurality of clamping annular grooves, and the height of the deformation gap is 1-2 mm.

8. A new type of remote control liquid level self-control floating ball valve according to claim 7, characterized in that: The flexible gasket is provided in the deformation gap close to the guide convex part, and the outer diameter of the flexible gasket is smaller than the outer diameter of the clamping piece.

Images