CN212868611U - Pressure reduction water conservancy control valve with filtering capability - Google Patents

Abstract

The utility model discloses a decompression water conservancy control valve with filtering capability. A pressure-reducing water conservancy control valve with a filtering function comprises a valve body, a valve seat, a valve clack, a spring, a valve rod, an upper valve cover, a lower valve cover and a diaphragm, wherein the upper valve cover is provided with a guide cylinder; comprises a valve rod upper guide device and a valve rod lower guide device; pressure reduction water conservancy control valve filter equipment, pressure reduction water conservancy control valve filter equipment are cylindric cavity filter screen. The valve clack, the valve rod and the diaphragm are matched for use, so that the sealing path of the diaphragm is shortened, the stable operation and use of the pressure-reducing hydraulic control valve with the filtering function are realized, and the sealing effect and the service life of the pressure-reducing hydraulic control valve with the filtering function are improved; the integrated design of the filtering device and the valve body is realized, and the installation cost of the system pipeline is reduced.

Description

Pressure reduction water conservancy control valve with filtering capability

Technical Field

The utility model belongs to a pressure reduction water conservancy control valve especially belongs to a pressure reduction water conservancy control valve with filtering capability.

Background

The pressure reduction hydraulic control valve mostly comprises a Y-shaped structure hydraulic control valve and a T-shaped structure hydraulic control valve. The pressure-reducing hydraulic control valve requires that water entering a valve inner cavity of the pressure-reducing hydraulic control valve from a system pipeline is clean water, the normal and stable use of the pressure-reducing hydraulic control valve is seriously influenced by the diversity of valve media of the hydraulic control valve and various severe environments, and in order to ensure that the media flowing into the system and the pressure-reducing hydraulic control valve do not influence the normal and stable use of the pressure-reducing hydraulic control valve, the conventional method mostly comprises the steps of installing a filter on a main pipeline of the system, and increasing the installation cost of the main pipeline of the system; in addition, the existing pressure reduction water conservancy control valve is characterized in that the inner cavity of the pressure reduction water conservancy control valve is divided into an upper cavity and a lower cavity through a diaphragm, and the pressure difference between the upper cavity and the lower cavity is controlled to control the opening and closing of the valve of the pressure reduction water conservancy control valve. When the pressure of the upper cavity is greater than the pressure of the lower cavity, the valve of the pressure reduction water conservancy control valve is in a closed state, and the valve is sealed; when the pressure of the upper cavity is smaller than that of the lower cavity, the pressure reduction water conservancy control valve is in an opening state; when the pressure of the upper cavity is equal to that of the lower cavity, the pressure area of the diaphragm is larger than that of the sealing gasket, so that the action of the pressure of the upper cavity is larger than that of the lower cavity, and the valve is in a closed state. The diaphragm of the existing pressure reduction water conservancy control valve is long in sealing path, so that the diaphragm is easy to age, and the service life of the pressure reduction water conservancy control valve is influenced; meanwhile, the valve sealing of the pressure-reducing water conservancy control valve is realized through the diaphragm, and the problem of poor sealing stability sometimes exists, so that the valve sealing effect of the pressure-reducing water conservancy control valve is influenced. How can realize getting into the water of decompression hydraulic control valve inner chamber from the system's pipeline and be clean water, reduce system's pipeline installation cost, how to realize the stable use of decompression hydraulic control valve, improve the sealed effect and the life of decompression hydraulic control valve and be the problem that needs the solution.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: provides a pressure reduction water conservancy control valve with a filtering function. The pressure-reducing water conservancy control valve with the filtering function can realize that water entering the inner cavity of the valve of the pressure-reducing water conservancy control valve from a system pipeline is clean water, so that the installation cost of the system pipeline is reduced; the stable use of this decompression hydraulic control valve with filtering capability can be realized, this decompression hydraulic control valve with filtering capability's sealed effect and life are improved.

The utility model provides a technical scheme of above-mentioned technical problem is: the utility model provides a decompression water conservancy control valve with filtering capability, includes valve body, disk seat, valve clack, spring, valve rod, goes up valve gap, lower valve gap, diaphragm, the valve body has into water end, play water end, characterized by: the upper valve cover is provided with a guide cylinder, and the upper valve cover and the diaphragm which are provided with the guide cylinder are sequentially arranged on the valve body by using bolts and a sealing gasket; the valve body is characterized in that a valve seat is arranged on the inner surface of the inner cavity of the valve body between the water inlet end and the water outlet end, the valve rod is fixedly connected with the valve clack, the valve rod fixedly connected with the valve clack is provided with a part extending out of the upper top surface and the lower bottom surface of the valve clack, the part of the valve rod extending out of the upper top surface of the valve clack is fixedly connected with the diaphragm in a sealing way by using an upper pressure plate, a sealing ring and a hexagon nut, the valve rod fixedly connected with the diaphragm in a sealing way by using the upper pressure plate, the sealing ring and the; the upper guide sleeve is installed in the guide cylinder arranged on the upper valve cover by using a plug, the lower bottom surface of the upper guide sleeve installed in the guide cylinder arranged on the upper valve cover is in elastic contact with the upper top surface of a spring sleeved on the upper part of the valve rod on the diaphragm, the upper guide sleeve installed in the guide cylinder arranged on the upper valve cover by using the plug is provided with an upper running space and a lower running space, the valve rod drives the valve clack to close and open the upper running space and the lower running space of the pressure-reducing water conservancy control valve with the filtering function, and when the valve rod drives the valve clack to open the pressure-reducing water conservancy control valve with the filtering function, the upper end part of the valve rod can extend into the upper guide sleeve and run upwards along the upper guide sleeve; the valve clack fixedly connected with the valve rod is in sealing contact connection with the upper top surface of a valve seat arranged on the inner surface of the inner cavity of the valve body between the water inlet end and the water outlet end of the valve body by using a lower pressure plate, a bolt and a sealing gasket; the valve rod lower guide device is a lower guide sleeve and at least 3 guide sleeve mounting bar-shaped blocks, one end of each of the at least 3 guide sleeve mounting bar-shaped blocks is fixedly connected with the inner surface of the valve seat cavity at an equal angle in sequence, the other end of each of the at least 3 guide sleeve mounting bar-shaped blocks is fixedly connected with the outer surface of the lower guide sleeve at an equal angle in sequence, the part of the valve rod extending out of the lower bottom surface of the valve clack is sleeved on the lower guide sleeve mounted in the valve seat cavity by using the at least 3 guide sleeve mounting bar-shaped blocks, and the valve rod sleeved on the lower guide sleeve also has; the axis of an upper guide sleeve which is arranged in a guide cylinder arranged on the upper valve cover by using a plug, the axis of a valve rod which is fixedly connected with the valve clack and extends out of the upper top surface part of the valve clack and is fixedly connected with the diaphragm by using an upper pressure plate, a sealing ring and a hexagon nut in a sealing way, and the axis of a lower guide sleeve which is arranged in a cavity of the valve seat by using at least 3 guide sleeve mounting bar-shaped blocks are a straight line;

the water pressure reducing and controlling valve is characterized by further comprising a filtering device of a water pressure reducing and controlling valve, wherein the filtering device of the water pressure reducing and controlling valve is a cylindrical hollow filtering net, a hollow convex part which inclines towards the water outlet end of the valve body is further arranged on the part, close to the water inlet end, of the valve body, an opening of the hollow convex part which inclines towards the water outlet end of the valve body is an opening matched with a lower valve cover, the lower valve cover is installed on the opening of the hollow convex part which inclines towards the water outlet end of the valve body in a threaded mode, and the cylindrical hollow filtering net is installed on the inner wall of the inner cavity of the hollow convex part blocked by the lower valve cover and the;

the pressure reduction water conservancy control valve is one of a Y-shaped flange type pressure reduction water conservancy control valve with a filtering function, a Y-shaped groove type pressure reduction water conservancy control valve with a filtering function, a T-shaped flange type pressure reduction water conservancy control valve with a filtering function and a T-shaped groove type pressure reduction water conservancy control valve with a filtering function.

The utility model has the advantages that: because the utility model is provided with the valve body, the valve seat, the valve clack, the spring, the valve rod, the upper valve cover, the lower valve cover and the diaphragm, the upper valve cover is provided with the guide cylinder, and the upper valve cover and the diaphragm which are provided with the guide cylinder are sequentially arranged on the valve body by using the bolt and the sealing gasket; the inner surface of the inner cavity of the valve body is provided with a valve seat at a position between the water inlet end and the water outlet end, a valve rod fixedly connected with the valve clack is provided with a part extending out of the upper top surface and the lower bottom surface of the valve clack, the part of the valve rod extending out of the upper top surface of the valve clack is fixedly connected with the diaphragm in a sealing way by using an upper pressure plate, a sealing ring and a hexagon nut, the valve rod fixedly connected with the diaphragm in a sealing way by using the upper pressure plate, the sealing ring and the hexagon nut is also provided with a part extending; the valve rod upper guide device and the valve rod lower guide device are further arranged, an upper guide sleeve axis which is installed in a guide cylinder arranged on the upper valve cover through a plug and is fixedly connected with the valve clack is used for extending out of the upper top surface part of the valve clack, an upper pressure plate, a sealing ring, a hexagon nut and a valve rod axis which is fixedly connected with the diaphragm in a sealing mode are used, and a lower guide sleeve axis which is installed in a valve seat cavity through at least 3 guide sleeve installation strip-shaped blocks is a straight line. The utility model discloses the cooperation of valve clack, valve rod and diaphragm is used, convenient realization the utility model discloses this decompression hydraulic control valve with filtering capability closes and opens, and corresponding prior art has shortened the sealed route of diaphragm, and guider's setting under guider, the valve rod on the valve rod has realized the steady operation of decompression hydraulic control valve with filtering capability and has used simultaneously, has improved this sealed effect and the life of the decompression hydraulic control valve with filtering capability. Because the utility model discloses still set up decompression hydraulic control valve filter equipment, decompression hydraulic control valve filter equipment is cylindric filter screen, the valve body is close to still be provided with to the opening cavity bulge that has of its play water end slope on the part of intaking end one side, the opening that the cavity bulge that inclines to its play water end on the valve body has is the opening with lower valve gap matched with, lower valve gap screw thread is installed on the opening that the cavity bulge that inclines to its play water end has on the valve body, lean on the cavity bulge inner chamber inner wall of lower valve gap shutoff and be close to its intake end cavity inner wall with the valve body and lean on installing cylindric cavity filter screen. The integrated design of the filtering device and the valve body is realized, and the installation cost of the system pipeline is reduced while the water entering the inner cavity of the pressure-reducing water conservancy control valve is clean water.

Drawings

The present invention will be further explained with reference to the drawings and examples;

fig. 1 is a schematic structural view of a Y-flange type pressure-reducing water conservancy control valve with a filtering function according to embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a Y-shaped groove type pressure-reducing water conservancy control valve with a filtering function according to embodiment 2 of the present invention;

fig. 3 is a schematic structural diagram of a T-shaped flange type pressure-reducing water conservancy control valve with a filtering function according to embodiment 3 of the present invention;

fig. 4 is a schematic structural diagram of a T-shaped groove type pressure-reducing water conservancy control valve with a filtering function according to embodiment 4 of the present invention;

in the drawings: 1. the valve comprises a valve body, 2 parts of a valve seat, 3 parts of a valve clack, 4 parts of a spring, 5 parts of a valve rod, 6 parts of an upper valve cover, 7 parts of a lower valve cover, 8 parts of a diaphragm, 9 parts of a water inlet end, 10 parts of a water outlet end, 11 parts of a guide cylinder, 12 parts of an upper pressure plate, 13 parts of a sealing ring, 14 parts of a hexagonal nut, 15 parts of an upper guide sleeve, 16 parts of a plug, 17 parts of a lower pressure plate, 18 parts of a sealing gasket, 19 parts of a lower guide sleeve, 20 parts of a strip-shaped block and 21.

Detailed Description

The present invention will be described in further detail with reference to the following examples.

Example 1

As shown in fig. 1, a pressure reduction water conservancy control valve with filtering capability, pressure reduction water conservancy control valve with filtering capability is Y type flange formula pressure reduction water conservancy control valve with filtering capability, Y type flange formula pressure reduction water conservancy control valve with filtering capability includes valve body 1, disk seat 2, valve clack 3, spring 4, valve rod 5, upper valve cover 6, lower valve gap 7, diaphragm 8, valve body 1 has into water end 9, play water end 10, characterized by: the upper valve cover 6 is provided with a guide cylinder 11, and the upper valve cover 6 and the diaphragm 8 which are provided with the guide cylinder 11 are sequentially arranged on the valve body 1 by using bolts and sealing gaskets; the valve seat 2 is arranged on the inner surface of the inner cavity of the valve body 1 between the water inlet end 9 and the water outlet end 10, the valve rod 5 is fixedly connected with the valve clack 3, the valve rod 5 fixedly connected with the valve clack 3 is provided with a part extending out of the upper top surface and the lower bottom surface of the valve clack 3, the part of the valve rod extending out of the upper top surface of the valve clack 3 is fixedly connected with the diaphragm 8 in a sealing way by using an upper pressure plate 12, a sealing ring 13 and a hexagon nut 14, the valve rod 5 fixedly connected with the diaphragm 8 in a sealing way by using the upper pressure plate 12, the sealing ring 13 and the hexagon nut 14 is also provided with a part extending out of; the upper guide sleeve 15 is matched with a guide cylinder 11 arranged on an upper valve cover, the upper guide sleeve 15 is installed in the guide cylinder 11 arranged on the upper valve cover 6 by using a plug 15, the lower bottom surface of the upper guide sleeve 15 installed in the guide cylinder 11 arranged on the upper valve cover 6 is in elastic contact with the upper top surface of a spring 4 sleeved on the upper part of the valve rod 5 on a diaphragm 8, the upper guide sleeve 15 installed in the guide cylinder 11 arranged on the upper valve cover 6 by using a plug 16 has an upper and a lower running spaces of the Y-shaped flange type pressure-reducing water conservancy control valve, wherein the valve rod 5 drives a valve clack 3 to close and open the valve clack 3, and when the valve rod 5 drives the valve clack 3 to open the Y-shaped flange type pressure-reducing water conservancy control valve with the filtering function, the upper end part of the valve rod 5 can extend into the upper guide sleeve 15 and run upwards along the upper guide sleeve 15; the valve clack 3 fixedly connected with the valve rod 5 is in sealing contact connection with the upper top surface of a valve seat 2 arranged on the inner surface of the inner cavity of the valve body 1 between the water inlet end 9 and the water outlet end 10 of the valve body by using a lower pressure plate 17, a bolt and a sealing gasket 18; the valve rod lower guide device comprises a lower guide sleeve 19 and 3 guide sleeve mounting bar-shaped blocks 20, one end of each of the 3 guide sleeve mounting bar-shaped blocks 20 is fixedly connected with the inner surface of the cavity of the valve seat 2 at an equal angle in sequence, the other end of each of the 3 guide sleeve mounting bar-shaped blocks 20 is fixedly connected with the outer surface of the lower guide sleeve 19 at an equal angle in sequence, the part of the valve rod 5 extending out of the lower bottom surface of the valve clack 3 is sleeved on the lower guide sleeve 19 mounted in the cavity of the valve seat 2 by using the 3 guide sleeve mounting bar-shaped blocks 20, and the valve rod 5 sleeved on the lower guide sleeve 19 also comprises a part; the axis of an upper guide sleeve 15 which is arranged in a guide cylinder 11 arranged on an upper valve cover 6 by using a plug 16, the axis of a valve rod 5 which is fixedly connected with a valve clack 3 and extends out of the upper top surface part of the valve clack 3 and is fixedly connected with a diaphragm 8 by using an upper pressure plate 12, a sealing ring 13 and a hexagon nut 14 in a sealing way, and the axis of a lower guide sleeve 19 which is arranged in a cavity of a valve seat 2 by using 3 guide sleeve mounting bar blocks 20 are a straight line;

still include decompression water conservancy control valve filter equipment, decompression water conservancy control valve filter equipment is cylindric cavity filter screen 21, valve body 1 is close to still to be provided with the cavity bulge to its play water end 10 slope on the part of intaking end 9 one side, and the opening that the cavity bulge that inclines to its play water end 10 on this valve body 1 has is the opening with lower valve gap 7 matched with, and lower valve gap 7 screw thread is installed on the opening that valve body 1 has to its play water end slope cavity bulge, and on the cavity bulge inner chamber inner wall of lower valve gap 7 shutoff and be close to its intake end 9 cavity inner wall with valve body 1 and paste and install cylindric cavity filter screen 21.

Example 2

As shown in fig. 2, a pressure reduction water conservancy control valve with filtering capability, pressure reduction water conservancy control valve with filtering capability has filtering capability for Y type ditch slot type, Y type ditch slot type pressure reduction water conservancy control valve with filtering capability includes valve body 1, disk seat 2, valve clack 3, spring 4, valve rod 5, upper valve cover 6, lower valve gap 7, diaphragm 8, valve body 1 has into water end 9, play water end 10, characterized by: the upper valve cover 6 is provided with a guide cylinder 11, and the upper valve cover 6 and the diaphragm 8 which are provided with the guide cylinder 11 are sequentially arranged on the valve body 1 by using bolts and sealing gaskets; the valve seat 2 is arranged on the inner surface of the inner cavity of the valve body 1 between the water inlet end 9 and the water outlet end 10, the valve rod 5 is fixedly connected with the valve clack 3, the valve rod 5 fixedly connected with the valve clack 3 is provided with a part extending out of the upper top surface and the lower bottom surface of the valve clack 3, the part of the valve rod extending out of the upper top surface of the valve clack 3 is fixedly connected with the diaphragm 8 in a sealing way by using an upper pressure plate 12, a sealing ring 13 and a hexagon nut 14, the valve rod 5 fixedly connected with the diaphragm 8 in a sealing way by using the upper pressure plate 12, the sealing ring 13 and the hexagon nut 14 is also provided with a part extending out of; the upper guide sleeve 15 is matched with a guide cylinder 11 arranged on an upper valve cover, the upper guide sleeve 15 is installed in the guide cylinder 11 arranged on the upper valve cover 6 by using a plug 15, the lower bottom surface of the upper guide sleeve 15 installed in the guide cylinder 11 arranged on the upper valve cover 6 is in elastic contact with the upper top surface of a spring 4 sleeved on the upper part of the valve rod 5 on the diaphragm 8, the upper guide sleeve 15 installed in the guide cylinder 11 arranged on the upper valve cover 6 by using a plug 16 has an upper and a lower running spaces where the valve rod 5 drives a valve clack 3 to close and open the Y-shaped groove type pressure-reducing water conservancy control valve with the filtering function, and when the valve rod 5 drives the water conservancy 3 to open the Y-shaped groove type pressure-reducing water conservancy control valve with the filtering function, the upper end part of the valve rod 5 can extend into the upper guide sleeve 15 and run upwards along the upper guide sleeve 15; the valve clack 3 fixedly connected with the valve rod 5 is in sealing contact connection with the upper top surface of a valve seat 2 arranged on the inner surface of the inner cavity of the valve body 1 between the water inlet end 9 and the water outlet end 10 of the valve body by using a lower pressure plate 17, a bolt and a sealing gasket 18; the valve rod lower guide device comprises a lower guide sleeve 19 and 3 guide sleeve mounting bar-shaped blocks 20, one end of each of the 3 guide sleeve mounting bar-shaped blocks 20 is fixedly connected with the inner surface of the cavity of the valve seat 2 at an equal angle in sequence, the other end of each of the 3 guide sleeve mounting bar-shaped blocks 20 is fixedly connected with the outer surface of the lower guide sleeve 19 at an equal angle in sequence, the part of the valve rod 5 extending out of the lower bottom surface of the valve clack 3 is sleeved on the lower guide sleeve 19 mounted in the cavity of the valve seat 2 by using the 3 guide sleeve mounting bar-shaped blocks 20, and the valve rod 5 sleeved on the lower guide sleeve 19 also comprises a part; the axis of an upper guide sleeve 15 which is arranged in a guide cylinder 11 arranged on an upper valve cover 6 by using a plug 16, the axis of a valve rod 5 which is fixedly connected with a valve clack 3 and extends out of the upper top surface part of the valve clack 3 and is fixedly connected with a diaphragm 8 by using an upper pressure plate 12, a sealing ring 13 and a hexagon nut 14 in a sealing way, and the axis of a lower guide sleeve 19 which is arranged in a cavity of a valve seat 2 by using 3 guide sleeve mounting bar blocks 20 are a straight line;

still include decompression water conservancy control valve filter equipment, decompression water conservancy control valve filter equipment is cylindric cavity filter screen 21, valve body 1 is close to still to be provided with the cavity bulge to its play water end 10 slope on the part of intaking end 9 one side, and the opening that the cavity bulge that inclines to its play water end 10 on this valve body 1 has is the opening with lower valve gap 7 matched with, and lower valve gap 7 screw thread is installed on the opening that valve body 1 has to its play water end slope cavity bulge, and on the cavity bulge inner chamber inner wall of lower valve gap 7 shutoff and be close to its intake end 9 cavity inner wall with valve body 1 and paste and install cylindric cavity filter screen 21.

Example 3

As shown in fig. 3, a pressure reduction water conservancy control valve with filtering capability, pressure reduction water conservancy control valve with filtering capability is T type flange formula pressure reduction water conservancy control valve with filtering capability, T type flange formula pressure reduction water conservancy control valve with filtering capability includes valve body 1, disk seat 2, valve clack 3, spring 4, valve rod 5, upper valve cover 6, lower valve gap 7, diaphragm 8, valve body 1 has into water end 9, play water end 10, characterized by: the upper valve cover 6 is provided with a guide cylinder 11, and the upper valve cover 6 and the diaphragm 8 which are provided with the guide cylinder 11 are sequentially arranged on the valve body 1 by using bolts and sealing gaskets; the valve seat 2 is arranged on the inner surface of the inner cavity of the valve body 1 between the water inlet end 9 and the water outlet end 10, the valve rod 5 is fixedly connected with the valve clack 3, the valve rod 5 fixedly connected with the valve clack 3 is provided with a part extending out of the upper top surface and the lower bottom surface of the valve clack 3, the part of the valve rod extending out of the upper top surface of the valve clack 3 is fixedly connected with the diaphragm 8 in a sealing way by using an upper pressure plate 12, a sealing ring 13 and a hexagon nut 14, the valve rod 5 fixedly connected with the diaphragm 8 in a sealing way by using the upper pressure plate 12, the sealing ring 13 and the hexagon nut 14 is also provided with a part extending out of; the upper guide sleeve 15 is matched with a guide cylinder 11 arranged on an upper valve cover, the upper guide sleeve 15 is installed in the guide cylinder 11 arranged on the upper valve cover 6 by using a plug 15, the lower bottom surface of the upper guide sleeve 15 installed in the guide cylinder 11 arranged on the upper valve cover 6 is in elastic contact with the upper top surface of a spring 4 sleeved on the upper part of the valve rod 5 on a diaphragm 8, the upper guide sleeve 15 installed in the guide cylinder 11 arranged on the upper valve cover 6 by using a plug 16 has an upper and a lower running spaces of the T-shaped flange type pressure-reducing water conservancy control valve, the valve rod 5 drives a valve clack 3 to close and open the valve clack 3, and when the valve rod 5 drives the valve clack 3 to open the T-shaped flange type pressure-reducing water conservancy control valve with the filtering function, the upper end part of the valve rod 5 can extend into the upper guide sleeve 15 and run upwards along the upper guide sleeve 15; the valve clack 3 fixedly connected with the valve rod 5 is in sealing contact connection with the upper top surface of a valve seat 2 arranged on the inner surface of the inner cavity of the valve body 1 between the water inlet end 9 and the water outlet end 10 of the valve body by using a lower pressure plate 17, a bolt and a sealing gasket 18; the valve rod lower guide device comprises a lower guide sleeve 19 and 3 guide sleeve mounting bar-shaped blocks 20, one end of each of the 3 guide sleeve mounting bar-shaped blocks 20 is fixedly connected with the inner surface of the cavity of the valve seat 2 at an equal angle in sequence, the other end of each of the 3 guide sleeve mounting bar-shaped blocks 20 is fixedly connected with the outer surface of the lower guide sleeve 19 at an equal angle in sequence, the part of the valve rod 5 extending out of the lower bottom surface of the valve clack 3 is sleeved on the lower guide sleeve 19 mounted in the cavity of the valve seat 2 by using the 3 guide sleeve mounting bar-shaped blocks 20, and the valve rod 5 sleeved on the lower guide sleeve 19 also comprises a part; the axis of an upper guide sleeve 15 which is arranged in a guide cylinder 11 arranged on an upper valve cover 6 by using a plug 16, the axis of a valve rod 5 which is fixedly connected with a valve clack 3 and extends out of the upper top surface part of the valve clack 3 and is fixedly connected with a diaphragm 8 by using an upper pressure plate 12, a sealing ring 13 and a hexagon nut 14 in a sealing way, and the axis of a lower guide sleeve 19 which is arranged in a cavity of a valve seat 2 by using 3 guide sleeve mounting bar blocks 20 are a straight line;

still include decompression water conservancy control valve filter equipment, decompression water conservancy control valve filter equipment is cylindric cavity filter screen 21, valve body 1 is close to still to be provided with the cavity bulge to its play water end 10 slope on the part of intaking end 9 one side, and the opening that the cavity bulge that inclines to its play water end 10 on this valve body 1 has is the opening with lower valve gap 7 matched with, and lower valve gap 7 screw thread is installed on the opening that valve body 1 has to its play water end slope cavity bulge, and on the cavity bulge inner chamber inner wall of lower valve gap 7 shutoff and be close to its intake end 9 cavity inner wall with valve body 1 and paste and install cylindric cavity filter screen 21.

Example 4

As shown in fig. 4, a pressure reduction water conservancy control valve with filtering capability, pressure reduction water conservancy control valve with filtering capability has filtering capability for T type ditch slot type, T type ditch slot type pressure reduction water conservancy control valve with filtering capability includes valve body 1, disk seat 2, valve clack 3, spring 4, valve rod 5, upper valve cover 6, lower valve gap 7, diaphragm 8, valve body 1 has into water end 9, play water end 10, characterized by: the upper valve cover 6 is provided with a guide cylinder 11, and the upper valve cover 6 and the diaphragm 8 which are provided with the guide cylinder 11 are sequentially arranged on the valve body 1 by using bolts and sealing gaskets; the valve seat 2 is arranged on the inner surface of the inner cavity of the valve body 1 between the water inlet end 9 and the water outlet end 10, the valve rod 5 is fixedly connected with the valve clack 3, the valve rod 5 fixedly connected with the valve clack 3 is provided with a part extending out of the upper top surface and the lower bottom surface of the valve clack 3, the part of the valve rod extending out of the upper top surface of the valve clack 3 is fixedly connected with the diaphragm 8 in a sealing way by using an upper pressure plate 12, a sealing ring 13 and a hexagon nut 14, the valve rod 5 fixedly connected with the diaphragm 8 in a sealing way by using the upper pressure plate 12, the sealing ring 13 and the hexagon nut 14 is also provided with a part extending out of; the upper guide sleeve 15 is matched with a guide cylinder 11 arranged on an upper valve cover, the upper guide sleeve 15 is installed in the guide cylinder 11 arranged on the upper valve cover 6 by using a plug 15, the lower bottom surface of the upper guide sleeve 15 installed in the guide cylinder 11 arranged on the upper valve cover 6 is in elastic contact with the upper top surface of a spring 4 sleeved on the upper part of the valve rod 5 on the diaphragm 8, the upper guide sleeve 15 installed in the guide cylinder 11 arranged on the upper valve cover 6 by using a plug 16 has an upper and a lower running spaces where the valve rod 5 drives a valve clack 3 to close and open the T-shaped groove type pressure-reducing water conservancy control valve with the filtering function, and when the valve rod 5 drives the water conservancy 3 to open the T-shaped groove type pressure-reducing water conservancy control valve with the filtering function, the upper end part of the valve rod 5 can extend into the upper guide sleeve 15 and run upwards along the upper guide sleeve 15; the valve clack 3 fixedly connected with the valve rod 5 is in sealing contact connection with the upper top surface of a valve seat 2 arranged on the inner surface of the inner cavity of the valve body 1 between the water inlet end 9 and the water outlet end 10 of the valve body by using a lower pressure plate 17, a bolt and a sealing gasket 18; the valve rod lower guide device comprises a lower guide sleeve 19 and 3 guide sleeve mounting bar-shaped blocks 20, one end of each of the 3 guide sleeve mounting bar-shaped blocks 20 is fixedly connected with the inner surface of the cavity of the valve seat 2 at an equal angle in sequence, the other end of each of the 3 guide sleeve mounting bar-shaped blocks 20 is fixedly connected with the outer surface of the lower guide sleeve 19 at an equal angle in sequence, the part of the valve rod 5 extending out of the lower bottom surface of the valve clack 3 is sleeved on the lower guide sleeve 19 mounted in the cavity of the valve seat 2 by using the 3 guide sleeve mounting bar-shaped blocks 20, and the valve rod 5 sleeved on the lower guide sleeve 19 also comprises a part; the axis of an upper guide sleeve 15 which is arranged in a guide cylinder 11 arranged on an upper valve cover 6 by using a plug 16, the axis of a valve rod 5 which is fixedly connected with a valve clack 3 and extends out of the upper top surface part of the valve clack 3 and is fixedly connected with a diaphragm 8 by using an upper pressure plate 12, a sealing ring 13 and a hexagon nut 14 in a sealing way, and the axis of a lower guide sleeve 19 which is arranged in a cavity of a valve seat 2 by using 3 guide sleeve mounting bar blocks 20 are a straight line;

still include decompression water conservancy control valve filter equipment, decompression water conservancy control valve filter equipment is cylindric cavity filter screen 21, valve body 1 is close to still to be provided with the cavity bulge to its play water end 10 slope on the part of intaking end 9 one side, and the opening that the cavity bulge that inclines to its play water end 10 on this valve body 1 has is the opening with lower valve gap 7 matched with, and lower valve gap 7 screw thread is installed on the opening that valve body 1 has to its play water end slope cavity bulge, and on the cavity bulge inner chamber inner wall of lower valve gap 7 shutoff and be close to its intake end 9 cavity inner wall with valve body 1 and paste and install cylindric cavity filter screen 21.

From the above description, those skilled in the art can make various changes and modifications without departing from the technical spirit of the present invention, and the present invention is within the protection scope of the present invention. The present invention is not to be considered as the best thing, and belongs to the common general knowledge of the technicians in the field.

Claims (1)

1. The utility model provides a decompression water conservancy control valve with filtering capability, includes valve body, disk seat, valve clack, spring, valve rod, goes up valve gap, lower valve gap, diaphragm, the valve body has into water end, play water end, characterized by: the upper valve cover is provided with a guide cylinder, and the upper valve cover and the diaphragm which are provided with the guide cylinder are sequentially arranged on the valve body by using bolts and a sealing gasket; the valve body is characterized in that a valve seat is arranged on the inner surface of the inner cavity of the valve body between the water inlet end and the water outlet end, the valve rod is fixedly connected with the valve clack, the valve rod fixedly connected with the valve clack is provided with a part extending out of the upper top surface and the lower bottom surface of the valve clack, the part of the valve rod extending out of the upper top surface of the valve clack is fixedly connected with the diaphragm in a sealing way by using an upper pressure plate, a sealing ring and a hexagon nut, the valve rod fixedly connected with the diaphragm in a sealing way by using the upper pressure plate, the sealing ring and the; the upper guide sleeve is installed in the guide cylinder arranged on the upper valve cover by using a plug, the lower bottom surface of the upper guide sleeve installed in the guide cylinder arranged on the upper valve cover is in elastic contact with the upper top surface of a spring sleeved on the upper part of the valve rod on the diaphragm, the upper guide sleeve installed in the guide cylinder arranged on the upper valve cover by using the plug is provided with an upper running space and a lower running space, the valve rod drives the valve clack to close and open the upper running space and the lower running space of the pressure-reducing water conservancy control valve with the filtering function, and when the valve rod drives the valve clack to open the pressure-reducing water conservancy control valve with the filtering function, the upper end part of the valve rod can extend into the upper guide sleeve and run upwards along the upper guide sleeve; the valve clack fixedly connected with the valve rod is in sealing contact connection with the upper top surface of a valve seat arranged on the inner surface of the inner cavity of the valve body between the water inlet end and the water outlet end of the valve body by using a lower pressure plate, a bolt and a sealing gasket; the valve rod lower guide device is a lower guide sleeve and at least 3 guide sleeve mounting bar-shaped blocks, one end of each of the at least 3 guide sleeve mounting bar-shaped blocks is fixedly connected with the inner surface of the valve seat cavity at an equal angle in sequence, the other end of each of the at least 3 guide sleeve mounting bar-shaped blocks is fixedly connected with the outer surface of the lower guide sleeve at an equal angle in sequence, the part of the valve rod extending out of the lower bottom surface of the valve clack is sleeved on the lower guide sleeve mounted in the valve seat cavity by using the at least 3 guide sleeve mounting bar-shaped blocks, and the valve rod sleeved on the lower guide sleeve also has; the axis of an upper guide sleeve which is arranged in a guide cylinder arranged on the upper valve cover by using a plug, the axis of a valve rod which is fixedly connected with the valve clack and extends out of the upper top surface part of the valve clack and is fixedly connected with the diaphragm by using an upper pressure plate, a sealing ring and a hexagon nut in a sealing way, and the axis of a lower guide sleeve which is arranged in a cavity of the valve seat by using at least 3 guide sleeve mounting bar-shaped blocks are a straight line;

the water pressure reducing and controlling valve is characterized by further comprising a filtering device of a water pressure reducing and controlling valve, wherein the filtering device of the water pressure reducing and controlling valve is a cylindrical hollow filtering net, a hollow convex part which inclines towards the water outlet end of the valve body is further arranged on the part, close to the water inlet end, of the valve body, an opening of the hollow convex part which inclines towards the water outlet end of the valve body is an opening matched with a lower valve cover, the lower valve cover is installed on the opening of the hollow convex part which inclines towards the water outlet end of the valve body in a threaded mode, and the cylindrical hollow filtering net is installed on the inner wall of the inner cavity of the hollow convex part blocked by the lower valve cover and the;

the pressure reduction water conservancy control valve is one of a Y-shaped flange type pressure reduction water conservancy control valve with a filtering function, a Y-shaped groove type pressure reduction water conservancy control valve with a filtering function, a T-shaped flange type pressure reduction water conservancy control valve with a filtering function and a T-shaped groove type pressure reduction water conservancy control valve with a filtering function.

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