CN110822138B - Water supply and drainage system and construction method - Google Patents

Abstract

The invention discloses a water supply and drainage system and a construction method, wherein the water supply and drainage system comprises a flow control valve, a main body pipe is inserted with a rotary valve rod, the bottom end of the rotary valve rod is fixedly connected with a sealing pad body, the sealing pad body comprises a main pad body and a column body, and a rotary valve seat is fixed in the main body pipe; the water inlet pipe comprises a straight pipe section and a connecting pipe section, the pipe cavity of the connecting pipe section is a first water inlet chamber and is provided with a check valve body, the cylinder body is a hollow corrugated pipe, the hand wheel shaft, the rotary valve rod and the main cushion body are provided with hollow pore passages, a limiting block is fixed below the handle shaft to carry out double-valve control on output water, the primary valve limits the upstream overlarge flow to a preset value, the water flow is more accurately controlled through the secondary valve, and the water inlet pipe is suitable for water supply and drainage pipelines with different pressures and flow sizes; water enters the water outlet pipe from bottom to top, and large impurity particles in the water sink to the bottom under the action of gravity, so that the impurity is prevented from influencing the matching effectiveness of elements, and the water outlet pipe is suitable for transportation and flow output control of water with different purities.

Description

Water supply and drainage system and construction method

Technical Field

The invention relates to the technical field of water supply and drainage systems, in particular to a water supply and drainage system and a construction method.

Background

The green belt is very extensive in design, a lot of manpower and financial resources are consumed for green irrigation every year, the output water pressure and the flow rate of a water storage device in a water supply and drainage system applied to the green belt are different, the direct application pressure and the flow rate are large, therefore, the flow control output is needed, the water applied to the water supply and drainage system for green irrigation comprises reuse water, natural water and the like, although the reuse water and the domestic water can be filtered, the simple filtration of large-particle impurities is generally carried out, some fine impurities and sludge still exist, and if the water is not treated, the matching effectiveness of parts in a valve cavity can be influenced, so that the normal use of the valve is influenced, and the water supply and drainage system of the flow control valve which can effectively control the water flow rate and effectively remove the impurities in the valve cavity is lacked.

Disclosure of Invention

The water supply and drainage system provided by the invention comprises the flow control valve capable of controlling the water flow and the pressure, is suitable for application environments with different water qualities, effectively controls the water flow through the double-valve design, and has excellent engineering application value.

A water supply and drainage system comprises a flow control valve for controlling water flow and pressure, wherein the flow control valve comprises a main body pipe, a water inlet pipe arranged below the main body pipe and a water outlet pipe arranged on one side of the main body pipe, the water inlet pipe, the main body pipe and the water outlet pipe are sequentially communicated with one another, the port of the water inlet pipe is a first water inlet, and the port of the water outlet pipe is a water outlet;

a rotary valve rod is inserted into the upper part of the main body pipe, the top end of the rotary valve rod is coaxially and fixedly connected with a hand wheel shaft, an adjusting hand wheel is connected onto the hand wheel shaft, the bottom end of the rotary valve rod is coaxially and fixedly connected with a sealing pad body, the sealing pad body comprises a main pad body and a cylinder body fixed below the main pad body, the lower end face of the cylinder body is closed, a convex ring radially extends inwards from the pipe wall of the main body pipe, a hollow rotary valve seat is fixed on the convex ring, the cavity of the main body pipe is divided into a water outlet cavity and a second water inlet cavity by the rotary valve seat, the main pad body is driven to lift by rotating the adjusting hand wheel, and a gap between the end face of the main pad body and the rotary valve seat is changed, so that the water flow;

wherein, the water inlet pipe comprises a straight pipe section and a connecting pipe section integrally connected with the straight pipe section, the connecting pipe section is coaxially and fixedly connected with the lower end of the main body pipe, the pipe cavity of the connecting pipe section is a first water inlet chamber, the second water inlet chamber is provided with a check valve body, a check valve seat matched with the check valve body is arranged in the first water inlet chamber, the cylinder is of a hollow corrugated pipe structure, a handle is arranged right above the adjusting hand wheel, the hand wheel shaft, the rotary valve rod and the main cushion body are provided with hollow pore passages communicated with each other, the handle shaft of the handle penetrates through the hand wheel shaft, the rotary valve rod and the hollow pore passages of the main cushion body to extend into the hollow cavity chamber of the cylinder, a limiting block is fixed below the handle shaft, the limiting block is driven to move up and down by lifting the handle, and the bottom end of the cylinder is retracted and limited at the, the top surface of the check valve body is against the bottom end surface of the column under the water flow pressure, thereby regulating the water flow and pressure entering the second water inlet chamber through the first water inlet chamber.

Preferably, the handle is provided with a second water inlet, the handle shaft is a hollow shaft, the cylinder comprises an outer cylinder and an inner cylinder, the outer cylinder is fixed below the main cushion body, a bump is convexly arranged below the limiting block and fixed at the bottom of the inner cylinder, the handle shaft extends into the shaft wall of the inner cylinder and is provided with a plurality of first water outlets, the cylinder walls of the outer cylinder and the inner cylinder are uniformly provided with second water outlets at intervals, the handle is rotated to realize the alignment of the second water outlets of the outer cylinder and the inner cylinder, and water is discharged from the second water outlets of the inner cylinder and the outer cylinder through the second water inlet and is sprayed into the second water inlet chamber.

Preferably, the bottom of the inner cylinder is provided with a groove, and the projection is screwed in the groove.

Preferably, the projection is clamped or adhered to the bottom of the inner cylinder.

Preferably, the outer cylinder is made of a silica gel material, and the inner cylinder is made of a hard plastic material.

Preferably, a gland is sealed above the main pipe.

Preferably, a frame beam is coaxially fixed on the hand wheel shaft, two ends of the frame beam are respectively fixed on the press cover through guide pillars, a positioning mechanism extending upwards is arranged on the frame beam, and the positioning mechanism comprises support brackets which are arranged on two sides of the handle and are positioned at different heights.

Preferably, the connecting pipe section is provided with an access hole opposite to the joint of the connecting pipe section and the main body pipe, and the access hole is sealed by a plug body.

The invention also provides a construction method applying the water supply and drainage system, which comprises the following steps:

s1, fixedly connecting the water inlet pipe to the first water inlet, connecting the water outlet pipe to the water outlet of the water outlet pipe, pulling the handle, positioning the handle on a support member with a preset gear, adjusting the water pressure and flow entering the second water inlet cavity through the first water inlet cavity,

s2, rotating the valve rod of the rotary valve, adjusting the water flow entering the water outlet cavity through the second water inlet cavity to further adjust the water flow and pressure, and rotating the adjusting hand wheel to output the water with the required flow pressure for greening spraying.

Preferably, the construction method further comprises the steps of:

s3, fixedly connecting the water inlet pipeline to a second water inlet, rotating the handle, aligning a second water outlet of the inner cylinder and a second water outlet of the outer cylinder, feeding water through the second water inlet, and spraying water through the water outlet of the second water outlet into the first water inlet cavity to flush sludge impurities in the cavity;

s4, removing the plug body, and discharging and removing impurities from the main pipe and the connecting pipe section.

To achieve these objects and other advantages in accordance with the purpose of the invention, as well as in accordance with the purpose of the invention, there are provided a water supply and drainage system and a construction method thereof, the system including at least the following advantages:

1. the water supply and drainage system provided by the invention has the advantages that the double-valve control is carried out on the water output from the first water inlet to the water outlet in a way that the handle, the handle shaft, the limiting block and the column body with the corrugated pipe structure are matched, and the rotary valve stem, the rotary valve body, the main cushion body of the sealing cushion body and the rotary valve seat are matched with each other, the overlarge upstream flow is limited to a preset value through the primary valve, the high upstream pressure is properly reduced, the water flow is more accurately controlled through the secondary valve, and the double-valve control system is suitable for water supply and drainage pipelines with different pressures and flow sizes;

2. the water of the flow control valve provided by the invention sequentially enters the second water inlet cavity from bottom to top through the gaps among the first water inlet cavity, the check valve body and the check valve seat, then enters the water outlet cavity through the gap between the sealing pad body and the rotary valve seat, and finally enters the water outlet pipe which is positioned at one side of the main body pipe.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic perspective view of a flow control valve according to the present invention;

FIG. 2 is a schematic cross-sectional view of a flow control valve according to the present invention;

FIG. 3 is an enlarged view of circle I of FIG. 2;

fig. 4 is a schematic structural diagram of the outer barrel provided by the invention.

Description of reference numerals: 10. adjusting a hand wheel; 20. erecting a beam; 30. a guide post; 40. a gland; 51. rotating the valve stem; 52. rotating a valve seat; 61. a main body tube; 62. a water outlet pipe; 621. a water outlet; 70. a water inlet pipe; 71. a first water inlet; 72. an access hole; 80. a sealing pad body; 81. a main cushion body; 82. a cylinder; 821. an outer cylinder; 822. an inner barrel; 91. a check valve body; 92. a check valve seat; 100. a first water inlet cavity; 200. a second water inlet cavity; 300. a water outlet cavity; 111. a handle; 112. a handle shaft; 113. a limiting plate; 1131. a bump; 114. a second water inlet; cc. And a second water outlet.

Detailed Description

The invention is described in further detail below with reference to the drawings so that those skilled in the art can practice the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

Referring to fig. 1 to 4, a water supply and drainage system includes a flow control valve for controlling water flow and pressure, the flow control valve includes a main body tube 61, a water inlet tube 70 disposed below the main body tube 61, and a water outlet tube 62 disposed on one side of the main body tube 61, the water inlet tube 70, the main body tube 61, and the water outlet tube 62 are sequentially communicated with each other, a port of the water inlet tube 70 is a first water inlet 71, and a port of the water outlet tube 62 is a water outlet 621; a rotary valve rod 51 is inserted through the upper part of the main tube 61, the top end of the rotary valve rod 51 is coaxially and fixedly connected with a hand wheel shaft, the hand wheel shaft is connected with an adjusting hand wheel 10, the bottom end of the rotary valve rod 51 is coaxially and fixedly connected with a sealing gasket body 80, the gasket body 80 includes a main body 81 and a cylinder 82 fixed below the main body 81, the lower end surface of the cylinder 82 is closed, a convex ring extends radially inwards from the pipe wall of the main pipe 61, a hollow rotary valve seat 52 is fixed on the convex ring, the rotary valve seat 52 divides the tube cavity of the main tube 61 into a water outlet cavity 300 and a second water inlet cavity 200, by rotating the adjusting hand wheel 10, the main cushion 81 is driven to lift, the gap between the end surface of the main cushion 81 and the rotary valve seat 52 is changed, thereby regulating the amount of water flow and pressure entering the outlet chamber 300 via the second inlet chamber 200.

The water inlet pipe 70 comprises a straight pipe section and a connecting pipe section integrally connected with the straight pipe section, the connecting pipe section is coaxially and fixedly connected with the lower end of the main body pipe 61, the pipe cavity of the connecting pipe section is a first water inlet chamber, the second water inlet chamber is provided with a check valve body 91, a check valve seat 92 matched with the check valve body 91 is arranged in the first water inlet chamber, the cylinder 82 is of a hollow corrugated pipe structure, a handle 111 is arranged right above the adjusting hand wheel 10, hollow pore passages communicated with each other are arranged on the hand wheel shaft, the rotary valve rod 51 and the main cushion body 81, the handle shaft 112 of the handle 111 penetrates through the hollow pore passages of the hand wheel shaft, the rotary valve rod 51 and the main cushion body 81 and extends into the hollow cavity chamber of the cylinder 82, a plurality of first water outlet holes are arranged on the shaft wall of the inner cylinder 822, a limit block 113 is fixed below the handle shaft 112, and the limit block 113 is driven by, the bottom end of the cylinder 82 retracts to limit the position of the limiting block 113 under the action of the water flowing pressure of the second water inlet cavity 200, and the top surface of the check valve body 91 is pressed against the bottom end surface of the cylinder 82 under the water flowing pressure, so that the water flow and the pressure entering the second water inlet chamber through the first water inlet chamber are adjusted.

The water of the flow control valve provided by the invention sequentially enters the second water inlet cavity 200 from bottom to top through the gap between the first water inlet cavity 100, the check valve body 91 and the check valve seat 92, then enters the water outlet cavity 300 through the gap between the sealing pad body 80 and the rotary valve seat 52, and finally enters the water outlet pipe 62, the water outlet pipe 62 is positioned at one side of the main body pipe, and in the process, larger impurity particles in the water sink under the action of gravity, so that primary filtration of the water can be realized, the influence of impurities of natural water or living water on the matching effectiveness of elements is prevented, and the flow control valve is suitable for transportation and flow output control of water with different purities; meanwhile, the water supply and drainage system provided by the invention performs double-valve control on water output from the first water inlet 71 to the water outlet 621 in a way of matching the handle 111, the handle shaft 112, the limit block 113 and the cylinder 82 of the bellows structure and in a way of matching the rotary valve stem 51, the rotary valve body, the main cushion body 81 of the sealing cushion body 80 and the rotary valve seat 52 with each other, limits the upstream overlarge flow to a preset value through the primary valve, properly reduces the upstream high pressure, more accurately controls the water flow through the secondary valve, and is suitable for water supply and drainage pipelines with different pressures and flow sizes.

In a preferred embodiment of the present invention, the handle 111 is provided with a second water inlet 114, the handle shaft 112 is a hollow shaft, the cylinder 82 includes an outer cylinder 821 and an inner cylinder 822, the outer cylinder 821 is fixed below the main cushion 81, a protrusion 1131 is convexly provided below the limiting block 113, the protrusion 1131 is fixed at the bottom of the inner cylinder 822, the second water outlets cc are uniformly arranged on the cylinder walls of the outer cylinder 821 and the inner cylinder 822 at intervals, the handle 111 is rotated to align the second water outlets cc of the outer cylinder 821 and the inner cylinder 822, water is fed through the second water inlet 114, water is discharged through the second water outlets cc of the inner cylinder 822 and the outer cylinder 821, water is sprayed into the second water inlet chamber, and sludge impurities on the inner wall surface of the chamber of the second water inlet chamber 200 are sprayed and washed, so as to achieve simplicity and effectiveness.

In a preferred embodiment of the present invention, an access opening 72 is formed at the connection position of the connecting pipe section and the main body pipe 61, and the access opening 72 is sealed with a plug body. The access hole 72 is convenient for overhauling the valve cavity and can be used for discharging sundries, sludge and the like in the valve cavity.

In a preferred embodiment of the present invention, the bottom of the inner cylinder 822 has a groove, and the protrusion 1131 is screwed into the groove. In other embodiments of the present invention, the protrusion 1131 is clamped or adhered to the bottom of the inner cylinder 822.

In a preferred embodiment of the present invention, the outer cylinder 821 is made of a silicone material, and the inner cylinder 822 is made of a hard plastic material. Under the action of the water flow pressure, the outer cylinder 821 is attached to the wall of the outer cylinder 821 of the inner cylinder 822, so that the water in the second water inlet cavity 200 is effectively prevented from entering the inner cylinder 822.

In an embodiment of the present invention, a gland 40 is sealed above the main tube 61.

Preferably, a frame beam 20 is coaxially fixed on the hand wheel shaft, two ends of the frame beam 20 are respectively fixed on the pressing cover 40 through the guide posts 30, the frame beam 20 is provided with a positioning mechanism extending upwards, and the positioning mechanism includes support brackets which are arranged on two sides of the handle 111 and located at different heights. The support bracket positions the handle 111 at a predetermined position.

The invention also provides a construction method applying the water supply and drainage system, which comprises the following steps:

s1, fixedly connecting the water inlet pipe 70 to the first water inlet 71, connecting the water outlet pipe 62 to the water outlet 621 of the water outlet pipe 62, pulling the handle 111, positioning the handle 111 on a support member with a predetermined gear, adjusting the water pressure and flow entering the second water inlet chamber 200 through the first water inlet chamber 100,

s2, rotating the rotary valve rod 51, adjusting the water flow entering the water outlet cavity 300 through the second water inlet cavity 200 to further adjust the water flow and the pressure, and rotating the adjusting hand wheel 10 to output the water with the required flow pressure for greening spraying.

Preferably, the construction method further comprises the steps of:

s3, fixedly connecting the water inlet pipe 70 to the second water inlet 114, rotating the handle 111, aligning the second water outlet cc of the inner cylinder 822 and the outer cylinder 821, feeding water through the second water inlet 114, and spraying water through the second water outlet cc to flush sludge impurities in the chamber in the first water inlet chamber 100;

s4, removing the plug body, and performing pollution discharge and impurity removal on the main pipe 61 and the connecting pipe section.

While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable to various fields of appropriate invention, and further modifications may readily be effected by those skilled in the art, whereby the invention is not limited to the details given herein and to the illustrations described herein, without departing from the general concept defined by the claims and their equivalents.

Claims (9)

1. A water supply and drainage system is characterized by comprising a flow control valve for controlling water flow and pressure, wherein the flow control valve comprises a main body pipe, a water inlet pipe arranged below the main body pipe and a water outlet pipe arranged on one side of the main body pipe, the water inlet pipe, the main body pipe and the water outlet pipe are sequentially communicated with one another, a port of the water inlet pipe is a first water inlet, and a port of the water outlet pipe is a water outlet;

a rotary valve rod is inserted into the upper part of the main body pipe, the top end of the rotary valve rod is coaxially and fixedly connected with a hand wheel shaft, an adjusting hand wheel is connected onto the hand wheel shaft, the bottom end of the rotary valve rod is coaxially and fixedly connected with a sealing pad body, the sealing pad body comprises a main pad body and a cylinder body fixed below the main pad body, the lower end face of the cylinder body is closed, a convex ring radially extends inwards from the pipe wall of the main body pipe, a hollow rotary valve seat is fixed on the convex ring, the cavity of the main body pipe is divided into a water outlet cavity and a second water inlet cavity by the rotary valve seat, the main pad body is driven to lift by rotating the adjusting hand wheel, and a gap between the end face of the main pad body and the rotary valve seat is changed, so that the water flow;

the water inlet pipe comprises a straight pipe section and a connecting pipe section integrally connected with the straight pipe section, the connecting pipe section is coaxially and fixedly connected with the lower end of the main body pipe, the pipe cavity of the connecting pipe section is a first water inlet chamber, the second water inlet chamber is provided with a check valve body, a check valve seat matched with the check valve body is arranged in the first water inlet chamber, the cylinder is of a hollow corrugated pipe structure, a handle is arranged right above the adjusting hand wheel, the hand wheel shaft, the rotary valve rod and the main cushion body are provided with hollow pore passages communicated with each other, the handle shaft of the handle penetrates through the hollow pore passages of the hand wheel shaft, the rotary valve rod and the main cushion body to extend into the hollow cavity chamber of the cylinder, a limiting block is fixed below the handle shaft, the limiting block is driven to move up and down by lifting the handle, and the bottom end of the cylinder is retracted and limited at the, the top surface of the check valve body is pressed against the bottom end surface of the column body under the water flowing pressure, so that the water flow and the pressure entering the second water inlet chamber through the first water inlet chamber are adjusted;

the handle is provided with a second water inlet, the handle shaft is a hollow shaft, the cylinder comprises an outer cylinder and an inner cylinder, the outer cylinder is fixed below the main cushion body, a bump is convexly arranged below the limiting block and fixed at the bottom of the inner cylinder, the handle shaft extends into the shaft wall of the inner cylinder and is provided with a plurality of first water outlet holes, the cylinder walls of the outer cylinder and the inner cylinder are uniformly provided with second water outlet holes at intervals, the handle is rotated to realize the alignment of the second water outlet holes of the outer cylinder and the inner cylinder, water is fed through the second water inlet, water is discharged through the second water outlet holes of the inner cylinder and the outer cylinder, and water is sprayed into the second water inlet chamber.

2. The water supply and drainage system of claim 1, wherein the bottom of the inner barrel is provided with a groove, and the projection is screwed in the groove.

3. The water supply and drainage system of claim 1 wherein the projections are snap-fit or adhered to the bottom of the inner cylinder.

4. A water supply and drainage system as claimed in claim 2 or claim 3 wherein the outer sleeve is made of a silicone material and the inner sleeve is made of a rigid plastics material.

5. The water supply and drainage system of claim 1 wherein a gland is sealed above the main tube.

6. The water supply and drainage system as claimed in claim 1, wherein the hand wheel shaft is coaxially fixed with a frame beam, two ends of the frame beam are respectively fixed on the pressure cover through guide posts, the frame beam is provided with a positioning mechanism extending upwards, and the positioning mechanism comprises support brackets arranged at two sides of the handle and located at different heights.

7. The water supply and drainage system of claim 1, wherein the connecting pipe section is provided with an access opening opposite to the joint of the connecting pipe section and the main body pipe, and the access opening is sealed by a plug body.

8. A construction method using the water supply and drainage system as claimed in claim 1, comprising the steps of:

s1, fixedly connecting the water inlet pipe to the first water inlet, connecting the water outlet pipe to the water outlet of the water outlet pipe, pulling the handle, positioning the handle on a support member with a preset gear, adjusting the water pressure and flow entering the second water inlet cavity through the first water inlet cavity,

s2, rotating the valve rod of the rotary valve, adjusting the water flow entering the water outlet cavity through the second water inlet cavity to further adjust the water flow and pressure, and rotating the adjusting hand wheel to output the water with the required flow pressure for greening spraying.

9. The construction method according to claim 8, further comprising the steps of:

s3, fixedly connecting the water inlet pipeline to a second water inlet, rotating the handle, aligning a second water outlet of the inner cylinder and a second water outlet of the outer cylinder, feeding water through the second water inlet, and spraying water through the water outlet of the second water outlet into the first water inlet cavity to flush sludge impurities in the cavity;

s4, removing the plug body, and discharging and removing impurities from the main pipe and the connecting pipe section.

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