CN115264130A - Novel full-channel streamline type waterproof hammer check valve - Google Patents

Novel full-channel streamline type waterproof hammer check valve Download PDF

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Publication number
CN115264130A
CN115264130A CN202210908892.XA CN202210908892A CN115264130A CN 115264130 A CN115264130 A CN 115264130A CN 202210908892 A CN202210908892 A CN 202210908892A CN 115264130 A CN115264130 A CN 115264130A
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CN
China
Prior art keywords
main valve
diaphragm
channel
water
flow control
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Pending
Application number
CN202210908892.XA
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Chinese (zh)
Inventor
梁竞
唐茂顺
林新金
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Foster Valve Group Co ltd
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Foster Valve Group Co ltd
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Application filed by Foster Valve Group Co ltd filed Critical Foster Valve Group Co ltd
Priority to CN202210908892.XA priority Critical patent/CN115264130A/en
Publication of CN115264130A publication Critical patent/CN115264130A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F16K15/184—Combined check valves and actuated valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/38—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side
    • F16K31/385—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a diaphragm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Details Of Valves (AREA)

Abstract

The invention discloses a novel full-channel streamline type water hammer-proof check valve, which relates to the field of check valves and comprises a main valve body, wherein a main valve seat is arranged inside the main valve body, a water inlet and a water outlet are respectively arranged at the left end and the right end of the main valve body, the main valve seat is obliquely arranged at a position communicated between the water inlet and the water outlet, a main valve middle cover positioned above the main valve seat is arranged at the upper end of the main valve body, when water enters from the water inlet, the water enters the main valve core to push the main valve core to be opened upwards, a main valve spring only has weak elasticity and cannot cause overlarge resistance to the main valve core, and when water enters from the water inlet, part of water is unidirectionally conveyed into a lower control chamber from a flow control valve b through a copper pipe at the water inlet, so that a diaphragm is pushed to move upwards, a main valve rod and the main valve core are driven to integrally ascend, and the purpose of quickly opening the main valve core is realized.

Description

Novel full-channel streamline type waterproof hammer check valve
Technical Field
The invention relates to the field of check valves, in particular to a novel full-channel streamline type waterproof hammer check valve.
Background
Most of the existing check valves are slow-opening and slow-closing type check valves and fast-opening and fast-closing type check valves. The slow-opening and slow-closing check valve has large water flow resistance in the opening process, so that the water pump has large load and high energy consumption; the fast-opening and fast-closing check valve has the advantages that in the operation of a pressure pipeline, the opening and closing noise is high, the water hammer is obvious when the valve is closed, and the damage to pipelines and equipment is great.
Therefore, it is desirable to provide a new type of full channel streamline check valve for a water hammer to solve the above problems.
Disclosure of Invention
The invention aims to provide a novel full-channel streamline type water hammer prevention check valve to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a novel full-channel streamline type water hammer-proof check valve comprises a main valve body, wherein a main valve seat is arranged inside the main valve body, a water inlet and a water outlet are respectively arranged at the left end and the right end of the main valve body, the main valve seat is obliquely arranged at a position communicated between the water inlet and the water outlet, a main valve middle cover positioned above the main valve seat is arranged at the upper end of the main valve body, a main valve upper cover is arranged above the main valve middle cover, a diaphragm is arranged in the main valve middle cover, a diaphragm bottom plate is arranged at the lower end of the diaphragm, a diaphragm upper pressing plate is arranged at the upper end of the diaphragm, a main valve core used for plugging the main valve seat is arranged on the main valve seat, the center of the main valve core is provided with a hole, and a main valve rod penetrates through the opening position, the upper end of the main valve rod penetrates through the diaphragm bottom plate, the diaphragm and the diaphragm upper pressing plate, the upper end of the main valve rod is connected with a bolt blocked above the diaphragm upper pressing plate through thread fit, the diaphragm divides a space between the main valve middle cover and the main valve upper cover into an upper control chamber and a lower control chamber which are arranged up and down, one end of the main valve body is provided with a flow control valve b, one end of the flow control valve b is communicated with a copper pipe on one side of a water inlet, the other end of the flow control valve b is communicated with the lower control chamber, the other end of the main valve body is provided with a flow control valve a, one end of the flow control valve a is communicated with the copper pipe on one side of a water outlet, and the other end of the flow control valve a is communicated with the upper control chamber.
Preferably, the position of the main valve rod penetrating through the main valve middle cover is provided with an O-ring a, the bottom of the main valve middle cover is fixedly provided with a damping vibration isolator, the lower surface of the damping vibration isolator is fixedly provided with a main valve spring, the lower end of the main valve spring is fixed on the upper surface of the main valve core, and the main valve rod penetrates through the middle parts of the damping vibration isolator and the main valve spring.
It should be noted that, when water enters from the water inlet, the water enters to push the main valve core to open upwards, so as to open the main valve core quickly, and the main valve spring only has weak elasticity and cannot cause overlarge resistance to the main valve core;
when water enters from the water outlet, the water pushes the upper part of the main valve core to be sealed on the main valve seat, and part of the water entering from the water outlet flows into the upper control chamber through the flow control valve a to push the upper part of the diaphragm, so that the diaphragm, the main valve rod and the main valve core are integrally descended;
the O-shaped ring a plays a role in sealing between the main valve rod and the main valve middle cover, the damping vibration isolation pad plays a role in buffering, and the main valve spring plays a role in connecting the damping vibration isolation pad and the main valve core.
Preferably, the main valve upper cover and the main valve middle cover are fixed by fixing screws, and the lower ends of the fixing screws are further fixed at the upper end of the main valve body.
Furthermore, the upper cover of the main valve, the middle cover of the main valve and the main valve body are fixed conveniently, and the disassembly, assembly and maintenance are simple.
Preferably, a filter b is arranged between the flow control valve b and the water inlet copper pipe.
Specifically, the filter b plays a role in filtering water entering the lower control chamber, and impurities are prevented from entering the lower control chamber.
Preferably, a filter a is arranged between the flow control valve a and the water outlet copper pipe.
Wherein, filter a plays the filtration and gets into the mesh of controlling the cavity normal water, avoids impurity to get into.
Preferably, the water outlet copper pipe is provided with a branch pipeline, and the branch pipeline is sequentially provided with a copper ball valve, a meter bending channel and a pressure meter.
In the device, can be with some water reposition in the lateral conduit, rivers show the pipe network pressure value through the manometer when passing through copper ball valve, the curved passageway of table, and the curved passageway of table is the purpose that reduces impact pressure table rivers, the passing through of the steerable rivers of copper ball valve.
Preferably, an O-ring b is arranged between the upper end of the main valve body and the main valve middle cover.
In operation, the O-ring b serves the purpose of sealing between the main valve body and the main valve middle cover.
Furthermore, the diaphragm is an elastic diaphragm and is in a tensioning state, the inner hole edge of the diaphragm is clamped and fixed between the diaphragm bottom plate and the diaphragm upper pressing plate, and the outer periphery of the diaphragm is clamped and fixed between the main valve middle cover and the main valve upper cover.
The elastic diaphragm has certain elasticity, and has the advantages of action response block and smaller occupied installation space.
Furthermore, the diaphragm is a flexible diaphragm and is in a loose state, the inner hole edge of the diaphragm is clamped and fixed between the diaphragm bottom plate and the diaphragm upper pressing plate, and the outer periphery of the diaphragm is clamped and fixed between the main valve middle cover and the main valve upper cover.
The flexible membrane self has the characteristic of certain flexible deformation, through buckling the installation of lax form, through bulging mode activity deformation under the water pressure drive, because it does not produce tensile deformation to membrane itself around warping, thereby the accessible is put into inside manadesma and is promoted structural strength and durability.
Preferably, the diaphragm includes rubberizing cortex, muscle stratum reticulare and lower rubber layer, the muscle stratum reticulare sets up between rubberizing cortex and the lower rubber layer, through gluing and the pressfitting fixed flexible composite structure, the bearing capacity of diaphragm can be promoted greatly to built-in muscle stratum reticulare to promote the life of diaphragm.
The invention has the technical effects and advantages that:
1. according to the novel full-channel streamline type waterproof hammer check valve, when water enters from the water inlet, the water enters to push the main valve core to be opened upwards, so that the main valve core is opened quickly, the main valve spring only has weak elasticity and cannot cause overlarge resistance to the main valve core, when water enters from the water inlet, a part of water is conveyed to the lower control chamber from the flow control valve b in a one-way mode through the copper pipe at the water inlet, so that the diaphragm is pushed to move upwards, the main valve rod and the main valve core are driven to rise integrally, and the purpose of quickly opening the main valve core is achieved;
2. according to the novel full-channel streamline type waterproof hammer check valve, when water enters from the water outlet, the water pushes the upper part of the main valve core to be sealed on the main valve seat, and part of water entering from the water outlet flows into the upper control chamber through the flow control valve a to push the upper part of the diaphragm, so that the diaphragm, the main valve rod and the main valve core are integrally descended;
3. according to the novel full-channel streamline type water hammer-proof check valve, a part of water can be divided in the branch pipeline, when water flows through the copper ball valve and the meter bending channel, the pressure value of a pipe network is displayed through the pressure meter, the meter bending channel is used for reducing the water flow impacting the pressure meter, and the copper ball valve can control the water flow to pass through.
4. According to the novel full-channel streamline type waterproof hammer check valve, the diaphragm can be an elastic diaphragm or a flexible diaphragm; the elastic diaphragm has certain elasticity, and has the advantages of action response block and smaller occupied installation space; the flexible membrane has certain characteristics of bending deformation, and the structural strength and durability can be improved by embedding the flexible membrane into an internal fascia.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of a flexible membrane structure according to the present invention;
FIG. 3 is a schematic side view of a flexible membrane according to the present invention;
FIG. 4 is a schematic side view of a composite sandwich structure of the present invention.
In the figure: the main valve body 1, the main valve seat 2, the main valve core 3, the main valve stem 4, the main valve spring 5, the damping vibration isolation pad 6, an O-shaped ring a7, an O-shaped ring b8, a diaphragm bottom plate 9, a diaphragm 10, an upper rubber layer 101, a rib net layer 102, a lower rubber layer 103, a diaphragm upper pressure plate 11, a bolt 12, a fixing screw 13, a copper ball valve 14, a meter bending channel 15, a pressure gauge 16, a filter a17, a flow control valve a18, a flow control valve b19, a filter b20, a main valve middle cover 21 and a main valve upper cover 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a novel full-channel streamline type waterproof hammer check valve as shown in figures 1-4, which comprises a main valve body 1, a main valve seat 2 is arranged in the main valve body 1, a water inlet and a water outlet are respectively arranged at the left end and the right end of the main valve body 1, the main valve seat 2 is obliquely arranged at the position communicated between the water inlet and the water outlet, a main valve middle cover 21 positioned above the main valve seat 2 is arranged at the upper end of the main valve body 1, a main valve upper cover 22 is arranged above the main valve middle cover 21, a diaphragm 10 is arranged in the main valve middle cover 21, a diaphragm bottom plate 9 is arranged at the lower end of the diaphragm 10, a diaphragm upper pressing plate 11 is arranged at the upper end of the diaphragm 10, a main valve core 3 for plugging the main valve seat 2 is arranged on the main valve seat 2, a central hole of the main valve core 3 is opened, and a main valve rod 4 penetrates through the opening position, the upper end of the main valve rod 4 penetrates through the diaphragm base plate 9, the diaphragm 10 and the diaphragm upper pressing plate 11, the upper end of the main valve rod 4 is connected with a bolt 12 blocked above the diaphragm upper pressing plate 11 through thread fit, the diaphragm 10 divides a space between the main valve middle cover 21 and the main valve upper cover 22 into an upper control chamber and a lower control chamber which are arranged up and down, one end of the main valve body 1 is provided with a flow control valve b19, one end of the flow control valve b19 is communicated with a copper pipe on one side of a water inlet, the other end of the flow control valve b19 is communicated with the lower control chamber, the other end of the main valve body 1 is provided with a flow control valve a18, one end of the flow control valve a18 is communicated with the copper pipe on one side of a water outlet, and the other end of the flow control valve a18 is communicated with the upper control chamber.
An O-shaped ring a7 is arranged at the position where the main valve rod 4 penetrates through the main valve middle cover 21, a damping vibration isolation pad 6 is fixedly arranged at the bottom of the main valve middle cover 21, a main valve spring 5 is fixedly arranged on the lower surface of the damping vibration isolation pad 6, the lower end of the main valve spring 5 is fixedly arranged on the upper surface of the main valve core 3, and the main valve rod 4 penetrates through the middle parts of the damping vibration isolation pad 6 and the main valve spring 5.
It should be noted that, when water enters from the water inlet, the water enters to push the main valve element 3 to open upwards, so as to quickly open the main valve element 3, and the main valve spring 5 has only weak elasticity and cannot cause overlarge resistance to the main valve element 3, when water enters from the water inlet, a part of water is unidirectionally conveyed from the flow control valve b19 to the lower control chamber through the copper pipe at the water inlet, so as to push the diaphragm 10 to move upwards, so as to drive the main valve rod 4 and the main valve element 3 to integrally lift, thereby achieving the purpose of quickly opening the main valve element 3;
when water enters from the water outlet, the water pushes the upper part of the main valve core 3 to be sealed on the main valve seat 2, and a part of water entering from the water outlet flows into the upper control chamber through the flow control valve a18 to push the upper part of the diaphragm 10, so that the diaphragm 10, the main valve rod 4 and the main valve core 3 integrally descend;
the O-ring a7 serves to seal between the main valve stem 4 and the main valve middle cover 21, the damping cushion 6 serves to cushion, and the main valve spring 5 serves to connect the damping cushion 6 to the main valve element 3.
The main valve upper cover 22 and the main valve middle cover 21 are fixed by fixing screws 13, and the lower ends of the fixing screws 13 are also fixed to the upper end of the main valve body 1.
Furthermore, the main valve upper cover 22, the main valve middle cover 21 and the main valve body 1 are fixed conveniently, and are easy to disassemble, assemble and maintain.
A filter b20 is arranged between the flow control valve b19 and the water inlet copper pipe.
In particular, the filter b20 serves the purpose of filtering the water entering the lower control chamber, avoiding the entry of impurities.
A filter a17 is arranged between the flow control valve a18 and the water outlet copper pipe.
Wherein, the filter a17 plays the purpose of filtering the water entering the upper control chamber, and avoids the entering of impurities.
The water outlet copper pipe is provided with a branch pipeline, and the branch pipeline is sequentially provided with a copper ball valve 14, a meter bending channel 15 and a pressure meter 16.
In the device, a part of water can be divided in the branch pipeline, when the water flow passes through the copper ball valve 14 and the meter bending channel 15, the pressure value of a pipe network is displayed through the pressure meter 16, the meter bending channel 15 is used for reducing the water flow impacting the pressure meter 16, and the copper ball valve 14 can control the water flow to pass through.
An O-ring b8 is provided between the upper end of the main valve body 1 and the main valve middle cap 21.
In operation, the O-ring b8 serves the purpose of sealing between the main valve body 1 and the main valve middle cover 21.
Furthermore, the diaphragm 10 is an elastic diaphragm and is in a tension state, the inner hole edge of the diaphragm is clamped and fixed between the diaphragm bottom plate 9 and the diaphragm upper pressure plate 11, and the outer periphery of the diaphragm is clamped and fixed between the main valve middle cover 21 and the main valve upper cover 22; the elastic membrane has certain elasticity, and has the advantages of action response blocks and smaller occupied installation space.
As another alternative embodiment, the diaphragm 10 is a flexible diaphragm in a relaxed state, and its inner hole edge is clamped and fixed between the diaphragm bottom plate 9 and the diaphragm upper pressure plate 11, and its outer edge is clamped and fixed between the master valve middle cover 21 and the master valve upper cover 22; the flexible membrane self has the characteristic of certain flexible deformation, through buckling the installation of lax form, through bulging mode activity deformation under the water pressure drive, because it does not produce tensile deformation to membrane itself around warping, thereby the accessible is put into inside manadesma and is promoted structural strength and durability.
Specifically, the diaphragm 10 includes the rubberizing cortex 101, the rib stratum reticulare 102 and the lower rubber cortex 103, the rib stratum reticulare 102 sets up between rubberizing cortex 101 and lower rubber cortex 103, it is fixed to be flexible composite structure through gluing and pressfitting, in this embodiment, the rib stratum reticulare 102 can adopt wire, nylon wire, carbon wire or PE line, be net, rhombus or the knitting of triangular check form network structure, the pressure-bearing capacity of diaphragm 10 can be promoted greatly to built-in rib stratum reticulare 102 to promote the life of diaphragm 10.
The working principle is as follows: when water enters from the water inlet, the water enters to push the main valve element 3 to be opened upwards, so that the main valve element 3 is quickly opened, the main valve spring 5 only has weak elasticity and cannot cause overlarge resistance to the main valve element 3, when water enters from the water inlet, part of water is unidirectionally conveyed from the flow control valve b19 to the lower control chamber through the copper pipe at the water inlet, so that the diaphragm 10 is pushed to move upwards, the main valve rod 4 and the main valve element 3 are driven to integrally ascend, and the purpose of quickly opening the main valve element 3 is achieved;
when water enters from the water outlet, the water pushes the upper part of the main valve core 3 to be sealed on the main valve seat 2, and a part of water entering from the water outlet flows into the upper control chamber through the flow control valve a18 to push the upper part of the diaphragm 10, so that the diaphragm 10, the main valve rod 4 and the main valve core 3 integrally descend;
o-ring a7 seals between main valve stem 4 and main valve middle cover 21, damping vibration isolator 6 buffers, and main valve spring 5 connects damping vibration isolator 6 to main valve element 3.

Claims (10)

1. The utility model provides a novel waterproof hammer check valve of full passageway streamline formula, includes the main valve body (1), its characterized in that: the main valve comprises a main valve body (1), a main valve seat (2) is arranged in the main valve body (1), a water inlet and a water outlet are respectively formed in the left end and the right end of the main valve body (1), the main valve seat (2) is obliquely arranged at a position communicated between the water inlet and the water outlet, a main valve middle cover (21) positioned above the main valve seat (2) is arranged at the upper end of the main valve body (1), a main valve upper cover (22) is arranged above the main valve middle cover (21), a diaphragm (10) is arranged in the main valve middle cover (21), a diaphragm bottom plate (9) is arranged at the lower end of the diaphragm (10), a diaphragm upper pressing plate (11) is arranged at the upper end of the diaphragm (10), a main valve core (3) used for plugging the main valve seat (2) is arranged on the main valve seat (2), a main valve rod (4) is arranged at the opening position of the center of the main valve core (3) in a penetrating mode, a main valve rod (4) penetrates through the diaphragm bottom plate (9), the diaphragm (10) and the diaphragm upper pressing plate (11), a bolt (12) used for blocking the upper pressing plate (21) above the diaphragm upper pressing plate (11) and a lower control chamber (19) for controlling flow of the main valve body is arranged between the upper end of the main valve seat (1) in a flow control chamber b), one end of the flow control valve b (19) is communicated with the copper pipe on one side of the water inlet, the other end of the flow control valve b (19) is communicated with the lower control chamber, the other end of the main valve body (1) is provided with a flow control valve a (18), one end of the flow control valve a (18) is communicated with the copper pipe on one side of the water outlet, and the other end of the flow control valve a (18) is communicated with the upper control chamber.
2. The novel full-channel streamlined check valve against water hammer of claim 1, wherein: the position that main valve pole (4) passed main valve middle cover (21) is provided with O type circle a (7), the bottom of main valve middle cover (21) is fixed and is provided with damping vibration isolator (6), the lower fixed main valve spring (5) that is provided with of damping vibration isolator (6), the lower extreme of main valve spring (5) is fixed on the upper surface of main valve core (3), main valve pole (4) pass the middle part of damping vibration isolator (6) and main valve spring (5).
3. The novel full-channel streamlined check valve against water hammer of claim 2, wherein: the upper main valve cover (22) and the middle main valve cover (21) are fixed through a fixing screw (13), and the lower end of the fixing screw (13) is also fixed at the upper end of the main valve body (1).
4. The novel full-channel streamlined check valve against water hammer of claim 3, wherein: and a filter b (20) is arranged between the flow control valve b (19) and the water inlet copper pipe.
5. The novel full-channel streamlined check valve against water hammer of claim 4, wherein: a filter a (17) is arranged between the flow control valve a (18) and the water outlet copper pipe.
6. The novel full-channel streamlined check valve against water hammer of claim 5, wherein: the water outlet copper pipe is provided with a branch pipeline, and the branch pipeline is sequentially provided with a copper ball valve (14), a meter bending channel (15) and a pressure meter (16).
7. The novel full channel streamlined hammer resistant check valve of claim 6, wherein: an O-shaped ring b (8) is arranged between the upper end of the main valve body (1) and the main valve middle cover (21).
8. The novel full-channel streamlined check valve against water hammer of claim 1, wherein: the diaphragm (10) is an elastic diaphragm and is in a tension state, the inner hole edge of the diaphragm is clamped and fixed between the diaphragm bottom plate (9) and the diaphragm upper pressing plate (11), and the outer periphery of the diaphragm is clamped and fixed between the main valve middle cover (21) and the main valve upper cover (22).
9. The novel full-channel streamlined check valve against water hammer of claim 1, wherein: the diaphragm (10) is a flexible diaphragm and is in a loose state, the inner hole edge of the diaphragm is clamped and fixed between the diaphragm bottom plate (9) and the diaphragm upper pressing plate (11), and the outer periphery of the diaphragm is clamped and fixed between the main valve middle cover (21) and the main valve upper cover (22).
10. The novel full-channel streamlined check valve against water hammer of claim 9, wherein: diaphragm (10) are including rubberizing cortex (101), rib stratum reticulare (102) and lower cortex (103), rib stratum reticulare (102) set up between rubberizing cortex (101) and lower cortex (103), through gluing and the pressfitting fixed flexible composite structure.
CN202210908892.XA 2022-07-29 2022-07-29 Novel full-channel streamline type waterproof hammer check valve Pending CN115264130A (en)

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Application Number Priority Date Filing Date Title
CN202210908892.XA CN115264130A (en) 2022-07-29 2022-07-29 Novel full-channel streamline type waterproof hammer check valve

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Application Number Priority Date Filing Date Title
CN202210908892.XA CN115264130A (en) 2022-07-29 2022-07-29 Novel full-channel streamline type waterproof hammer check valve

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CN115264130A true CN115264130A (en) 2022-11-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116181940A (en) * 2023-04-26 2023-05-30 青岛开元阀门有限公司 Air pressure reducing valve for ship

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116181940A (en) * 2023-04-26 2023-05-30 青岛开元阀门有限公司 Air pressure reducing valve for ship

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