WO2021017917A1 - 一种多功能角阀 - Google Patents

一种多功能角阀 Download PDF

Info

Publication number
WO2021017917A1
WO2021017917A1 PCT/CN2020/102942 CN2020102942W WO2021017917A1 WO 2021017917 A1 WO2021017917 A1 WO 2021017917A1 CN 2020102942 W CN2020102942 W CN 2020102942W WO 2021017917 A1 WO2021017917 A1 WO 2021017917A1
Authority
WO
WIPO (PCT)
Prior art keywords
hole
water
valve
core
plug
Prior art date
Application number
PCT/CN2020/102942
Other languages
English (en)
French (fr)
Inventor
杨洪伟
胡渡
郑松涛
Original Assignee
浙江达柏林阀门有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江达柏林阀门有限公司 filed Critical 浙江达柏林阀门有限公司
Publication of WO2021017917A1 publication Critical patent/WO2021017917A1/zh

Links

Images

Classifications

    • 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
    • B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/48—Attaching valve members to screw-spindles
    • 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
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise

Definitions

  • the utility model belongs to the technical field of valves, and relates to an angle valve, in particular to a multifunctional angle valve.
  • angle valves The application of angle valves is very common in our daily lives. However, people have encountered some problems during their use. In a sealed pipeline, when the flow rate of water suddenly increases or decreases in a very short period of time, water hammer will occur. It is usually caused by the sudden closing of a valve, a faucet or a water pump. And stop causing. The phenomenon of water hammer causes the extension of overpressure and negative pressure in the pipeline, resulting in huge noise and even damage to system components.
  • the purpose of the utility model is to solve the above-mentioned problems in the prior art and propose an angle valve with filter and waterproof hammer.
  • the technical problem to be solved is how to enrich the functions of the angle valve and increase the service life.
  • a multifunctional angle valve includes a valve body with a water inlet end at the lower end and a water outlet end on the side.
  • the valve body is provided with a water passage connecting the water inlet end and the water outlet end and a valve core capable of controlling the opening and closing of the water passage hole Assembly
  • the port of the water inlet is provided with a non-return mechanism
  • the outer peripheral surface of the water inlet is also provided with an upwardly inclined mounting hole
  • a water hammer eliminator is fixedly connected to the mounting hole
  • the outer periphery of the water outlet A positioning hole with a closed lower end penetrates through the surface, the axis of the positioning hole is perpendicular to the axis of the outlet end, and the diameter of the positioning hole is larger than the inner diameter of the outlet end.
  • the positioning hole is provided with a filter assembly, the filter assembly including a plug and a filter
  • the filter assembly including a plug and a filter
  • the net, the plug and the filter are fixedly connected, the plug is threadedly connected in the upper port of the positioning hole, the filter is arranged in the positioning hole, and the lower end of the filter abuts against the bottom wall of the positioning hole.
  • the non-return mechanism can prevent the water from being cut off at the water inlet, causing the water flow in the pipeline to flow back, which will cause the dry pumping phenomenon to damage the equipment, and greatly improve the safety during use.
  • the non-return mechanism can also play a buffering effect to a certain extent, and has a certain elimination effect on water hammer.
  • Mounting holes are also provided on the outer surface of the water inlet end, and the mounting holes are inclined on the outer side of the water inlet end. This arrangement can greatly reduce the space occupancy rate of the valve body and improve the applicability to various installation environments.
  • the installation hole is inclined towards the valve body, which can reduce the construction difficulty for workers to install the multifunctional valve, so that the docking between the water inlet and the pipeline is not affected by the water hammer eliminator, and the installation efficiency is improved.
  • the water hammer eliminator is threadedly connected with the installation hole.
  • the water hammer eliminator can effectively eliminate the shock waves such as water hammer, which greatly improves the safety and service life of the valve body.
  • the non-return mechanism and the water hammer eliminator are both arranged on the water inlet end, so that the water hammer can be eliminated in the water inlet end without harming the valve core assembly or the equipment connected to the water outlet end.
  • the water hammer eliminator and the non-return mechanism eliminate the shock wave, which greatly improves the work efficiency and the safety of the valve body. At the same time, this setting can eliminate the noise generated by the shock wave such as rapid current passing through the valve body, and has good practicability.
  • a positioning hole is opened on the water outlet end, and the filter assembly is arranged in the positioning hole.
  • the filter assembly is composed of a plug and a filter screen.
  • the filter screen is matched with the positioning hole.
  • the hole diameter of the positioning hole is slightly larger than the radial diameter of the water outlet. The advantage of this setting is that the filter screen can cut off the entire water outlet radially so that the water flow is only It can flow through the filter and then flow out of the water outlet, which can completely filter impurities.
  • the axis of the positioning hole is perpendicular to the axis of the water outlet, so that the filter is installed in the positioning hole, and the axis of the filter is also perpendicular to the axis of the water outlet, making the water flow directly against the filter.
  • the filter screen is arranged in the positioning hole and the lower end of the filter screen abuts against the bottom wall of the positioning hole. This arrangement makes the filter screen not easy to be skewed or damaged by water flow.
  • the structural strength of the filter screen itself is not very high, and its upper end is at the lower end of the plug. With the fixed connection, the lower end abuts against the bottom wall of the positioning hole, so that the filter screen can be firmly fixed in the water outlet end, which greatly improves the structural strength and the service life of the valve body.
  • the water hammer eliminator includes a housing with an inner cavity and a core, the lower end of the housing is provided with a diversion hole, the upper port of the diversion hole has a larger port diameter than the lower port of the diversion hole, so
  • the core is arranged in the inner cavity close to the upper port of the diversion hole, the core can slide relative to the shell along the opening direction of the diversion hole, the outer circumference of the core is provided with an annular groove, and the annular groove is provided with a seal A gasket, the outer peripheral surface of the sealing gasket abuts against the inner wall of the inner cavity to form a seal, a protrusion is provided on the side of the core near one end of the diversion hole, and a weight reduction groove is provided on the side of the core facing away from the diversion hole.
  • the lower end surface of the shell is provided with a threaded connection part, the threaded connection part is threadedly connected with the mounting hole, and the threaded connection part is
  • the shell of the water hammer eliminator has a cylindrical structure.
  • the lower end of the shell has a diversion hole, which connects the inner cavity with the mounting hole.
  • the lower end of the shell is also provided with a threaded connection part, which is used to thread the mounting hole. connection.
  • the threaded connection part is also provided with a connection hole that communicates the diversion hole with the water inlet end.
  • the core can slide relative to the shell along the opening direction of the guide hole, and the outer peripheral surface of the core is provided with an annular groove, and its function is to be able to set a sealing gasket, which can abut against the inner side wall to form a seal.
  • the core can be displaced relative to the shell along the direction of the guide hole axis to buffer and reduce the shock wave.
  • the structure is simple and the effect is outstanding.
  • the water hammer eliminator mainly uses the pressure difference to buffer the water flow. The space between the upper end of the shell and the core is in a closed state. When the shock wave hits the core, the core moves upward and the internal space is compressed. After the shock wave is eliminated, the core is reset and the internal space returns to normal.
  • the diameter of the lower end surface at the opening is smaller than the diameter of the upper end surface at the opening, and a section of the side surface of the core near the opening is provided with protrusions.
  • the opening is large and small, so that enough space can be reserved at the opening for the shock wave, and the protrusions on the core can contact the shock wave for the first time so that the core can be displaced.
  • This setting can make the shock wave be buffered to the greatest extent and eliminate water hammer, which is very practical.
  • the weight reduction groove provided on the core can greatly reduce the weight of the core, make the response more sensitive, and can easily cope with the impact and displacement to achieve the effect of buffering and reducing pressure.
  • a groove is provided at the port of the mounting hole, and an O-shaped washer is sleeved on the outside of the threaded connection part of the water hammer eliminator.
  • the O-shaped washer is located in the groove and the O-shaped washer The outer peripheral surface abuts against the inner wall of the groove to form a seal.
  • the threaded connection between the water hammer eliminator and the mounting hole is a hard seal.
  • the outer peripheral surface of the O-ring and the inner wall of the groove is a soft seal.
  • the soft and hard seals are combined.
  • the double seal greatly improves the connection between the water hammer eliminator and the mounting hole.
  • the sealing effect greatly improves the safety of the valve body.
  • an abutment groove is provided on the inner side of the upper port of the positioning hole, the outer peripheral surface of the upper end of the plug has a flange that abuts against the abutment groove, and the plug is close to the flange
  • a ring groove is provided on the outer circumferential surface, and a sealing ring is arranged in the ring groove. The sealing ring abuts against the inner side wall of the positioning hole to form a seal.
  • the net is fixedly connected with the lower end surface of the plug, the filter net is in the shape of a cylinder with upper and lower ends open, and the outer peripheral surface of the filter net is provided with water inlet holes which are directly opposite to the inlet of the water outlet.
  • the plug and the positioning hole are threaded to form a single seal, the sealing gasket on the plug and the inner wall of the positioning hole are softly sealed as a double seal, and the flange on the plug can abut against the abutting end to form a hard seal to form a triple seal.
  • the triple seal greatly improves the sealing effect between the plug and the positioning hole.
  • the soft seal between the sealing gasket and the positioning hole is likely to age with time and use. After aging, the soft seal effect may deteriorate or fail, and the seal safety cannot be guaranteed. Therefore, the hard seal between the flange and the abutting end greatly improves the sealing performance between the plug and the positioning hole.
  • the filter screen is provided with water inlet holes, which are directly opposite to the direction of the water flow.
  • the advantage of this setting is that all water flows through the water inlet holes, so that impurities can stay inside the filter screen.
  • the upper end surface of the plug is also provided with a disassembly slot, so that the filter assembly must be disassembled with a special tool to prevent the valve body from being damaged by man or being accidentally opened, causing harm. This arrangement can improve the overall safety of the valve body.
  • the valve core assembly includes a bonnet, a valve stem, and a valve core.
  • the upper end of the valve body is open and the bonnet is fixed at the upper opening of the valve body, and the valve stem is inserted in the bonnet.
  • the valve stem and the bonnet are axially fixed and the valve stem can rotate relative to the bonnet.
  • the lower end of the bonnet is provided with an assembly hole.
  • the upper end of the valve core extends into the assembly hole and forms a circumferential fixation.
  • the lower end of the valve stem is threadedly connected with the upper end of the valve core.
  • An annular protrusion is provided at the upper port of the water passing hole, and a sealing gasket is provided at the lower end of the valve core, and the sealing gasket abuts against the annular protrusion to form a seal.
  • valve stem and the bonnet are axially fixed, so that the valve stem cannot move up and down but can be rotated in a circumferential direction.
  • the valve core is threaded to the valve stem and the valve core cannot rotate in the circumferential direction but can be displaced under the mountain. Drive the valve core to move up and down along the axis.
  • the water passage hole is arranged directly to the valve core, and when the valve core moves downward, it can abut against the water passage hole to form a seal, thereby blocking the water flow.
  • the lower end of the valve core is provided with a sealing gasket, and the upper port of the water passage hole is provided with an annular protrusion.
  • the sealing gasket can abut against the annular protrusion to produce deformation. This arrangement greatly improves the sealing effect between the valve core and the water passage hole .
  • a decorative cover is also provided outside the water inlet end.
  • the setting of the decorative cover is beautiful and atmospheric, which improves the beauty of the product.
  • the water inlet end of the multifunctional angle valve is provided with a non-return mechanism, which has a certain waterproof hammer function.
  • the outer peripheral surface of the water inlet end is also provided with a mounting hole, and the mounting hole is threaded
  • the water hammer eliminator, non-return mechanism and water hammer eliminator are all set at the water outlet. Double buffering to eliminate water hammer can effectively protect the valve body and greatly increase the life of the valve body.
  • the water outlet is equipped with a detachable filter assembly to make the valve body with filtering function and easy to clean.
  • the upper end of the valve body also has a valve core assembly that can control the opening and closing of the water hole, which enriches the functions of the angle valve.
  • Figure 1 is a cross-sectional view of the multifunctional angle valve.
  • Figure 2 is a sectional view of the valve body of the multifunctional angle valve.
  • Figure 3 is a cross-sectional view of the water hammer eliminator.
  • Figure 4 is a cross-sectional view of the filter assembly.
  • valve body 11, the water inlet; 12, the water outlet; 13, the water hole; 131, the annular protrusion; 14, the mounting hole; 141, the groove; 15, the positioning hole; 151, abutting Slot; 2.
  • Valve core assembly 21. Bonnet; 211. Assembly hole; 22. Valve stem; 23. Valve core; 24. Seal; 3. Water hammer eliminator; 31. Shell; 311. Diversion hole; 312. Threaded connection part; 313. Connection hole; 32. Core; 321. Annular groove; 322. Protrusion; 323. Weight reduction groove; 33. Sealing gasket; 4. Filter assembly; 41. Plug; 411. Flange; 412, ring groove; 413, disassembly groove; 414, weight reduction hole; 42, filter screen; 421, water inlet; 43, gasket; 5. non-return mechanism; 6, O-ring; 7, decoration cover.
  • a multifunctional angle valve includes a valve body 1 having a water inlet 11 and a water outlet 12, and the water inlet 11 is vertically arranged on the valve body 1 downward.
  • the non-return mechanism 5 has a valve core and a spring. The valve core relies on the spring force to abut against the water outlet 12 to form a seal.
  • the non-return mechanism 5 can also play a role in buffering the shock wave of the water flow. Waterproof hammer function.
  • the outer peripheral surface of the water outlet 12 is also provided with an upwardly inclined mounting hole 14.
  • the port of the mounting hole 14 is provided with a groove 141.
  • the mounting hole 14 can be screwed and fixed with the threaded connection part 312 on the water hammer eliminator 3.
  • the outer peripheral surface of the threaded connection part 312 is also covered with an O-ring 6 which can abut against the groove 141 to form a seal.
  • the threaded connection between the threaded connection part 312 and the mounting hole 14 can form a hard seal. 6 and the groove 141 form a soft seal.
  • the combination of the hard seal and the soft seal forms a double seal, which greatly improves the sealing effect between the water hammer eliminator 3 and the valve body 1.
  • the water hammer eliminator 3 also includes a shell 31 and a core 32.
  • the shell 31 has a cylindrical structure with an open lower end.
  • the core 32 is arranged in the inner cavity of the shell 31, and the core 32 is arranged in an annular groove 321 on the outer peripheral surface.
  • the sealing gasket 33 and the side wall of the inner cavity of the housing 31 form a seal.
  • the outer core 32 can move in the axial direction relative to the housing 31.
  • the lower end surface of the housing 31 is also provided with a diversion hole 311.
  • the diversion hole 311 can make the inner cavity of the housing 31 communicate with the mounting hole 14.
  • the core 32 is provided with a protrusion 322 on the side close to the diversion hole 311.
  • the protrusion 322 can It can buffer the water flow and increase the sensitivity of the core 32.
  • a weight-reducing groove 323 is provided on the side of the core 32 facing away from the guide hole 311. The weight-reducing groove 323 can greatly reduce the weight of the core 32 and make the movement more sensitive. Since the core 32 forms a seal with the inner wall of the housing 31, there is a certain air pressure therebetween. Water flows through the valve body 1, and the guide hole 311 connects the inner cavity of the housing 31 with the valve body 1. The water flow also has a certain water pressure.
  • the air pressure at the left end of the core 32 should be equal to the water pressure at the right end.
  • the core 32 moves away from the guide hole 311, compressing the gas in the cavity, thereby increasing the air pressure. And the water pressure is level again.
  • the water hammer disappears, the core 32 is reset.
  • the structure is simple and the waterproof hammer has a good effect.
  • the water hammer eliminator 4 is arranged at the water inlet 11, and the non-return mechanism 3 is also arranged at the water inlet 11.
  • the double-buffered waterproof hammer arrangement can greatly improve the safety of the valve body.
  • the core assembly 2 includes a bonnet 21, a valve stem 22 and a valve core 23.
  • the upper end of the valve body 1 is open and the bonnet 21 is fixed at the upper opening of the valve body 1.
  • the valve stem 22 is inserted into the bonnet 21, and the valve stem 22 is connected to
  • the bonnet 21 is axially fixed and the valve stem 22 can rotate relative to the bonnet 21.
  • the lower end of the bonnet 21 is provided with an assembly hole 211.
  • the upper end of the valve core 23 extends into the assembly hole 211 and forms a circumferential fixation.
  • the lower end of the valve stem 22 and the valve The upper end of the core 23 is threaded.
  • the lower end of the valve core 23 is provided with a sealing gasket 24 facing the water hole 13.
  • the valve core 23 can move up and down along the axial direction.
  • the sealing gasket 24 can abut against the water passage 13 to form a seal. So that the valve body 1 completes cutting off the water supply, and when it moves upward, the water flows, and the valve body 1 turns on the water supply.
  • the water passage hole 13 is also provided with an annular protrusion 131.
  • the advantage of this arrangement is that the gasket 24 can abut against the annular protrusion 131 to deform to form a seal, and its sealing effect is much better than the lower end surface of the gasket 24 and the passage The abutting seal between the upper end surfaces of the water hole 13.
  • the water outlet 12 is provided with a positioning hole 15 perpendicular to its axis.
  • the positioning hole 15 is provided with a filter assembly 4, and the filter assembly 4 includes a plug 41 and a filter mesh 42.
  • the lower end of the plug 41 is fixedly connected with the upper end of the filter screen 42, the diameter of the positioning hole 15 is slightly larger than the diameter of the water outlet 12, and the outer peripheral surface of the filter assembly 4 is in clearance fit with the inner peripheral surface of the positioning hole 15.
  • the plug 41 is provided with threads on the outer peripheral surface, which can be screwed with the positioning hole 15 and fixed on the outside of the upper end surface of the plug has a flange 411 which can abut against the abutment groove 151 on the positioning hole 15 to form a hard seal.
  • a ring groove 412 is also provided on the outer peripheral surface between the flange 411 and the thread of the plug 41, and a sealing gasket 43 is provided in the ring groove 412.
  • the gasket 43 can form a soft seal with the inner wall of the positioning hole 15.
  • the combination of hard sealing and soft sealing forms a double sealing effect, which greatly improves the sealing effect between the filter assembly 4 and the positioning hole 15.
  • the filter screen 42 has a cylindrical structure with upper and lower openings.
  • the upper end is fixed to the lower end of the plug 41, and the lower end abuts against the lower end surface of the positioning hole.
  • the filter screen 42 penetrates the channel of the water outlet 12.
  • the filter screen 42 is also provided with water inlet holes 421, which are arranged in the direction of the water flow, so that all the water flows through the inner cavity of the filter screen 42, so that all impurities remain in the filter screen 42. Therefore, when cleaning, you only need to take out the filter and rinse it to prevent secondary pollution.
  • the upper end surface of the plug 41 is also provided with a disassembly slot 413, whose function is to prevent the filter assembly 4 from being accidentally opened. Only professional tools corresponding to the disassembly slot 413 can be used to disassemble the plug 41.
  • the lower end surface of the plug 41 is also provided with a weight reduction hole 414, which can effectively solve the cost and reduce the weight of the angle valve.
  • a decorative cover 7 is provided on the outer peripheral surface of the water inlet 11 near the port. When the valve body is installed, the decorative cover 7 can have a good aesthetic effect.

Landscapes

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

Abstract

一种多功能角阀，包括下端为进水端(11)以及侧部具有出水端(12)的阀体(1)，阀体(1)内设有将进水端(11)和出水端(12)相连通的过水孔(13)以及能控制过水孔(13)启闭的阀芯组件(2)，进水端(11)的端口内设有止回机构(5)，进水端(11)外周面上还设有向上倾斜的安装孔(14)，安装孔(14)处固连有水锤消除器(3)，出水端(12)外周面上贯穿设置有下端封闭的定位孔(15)，定位孔(15)内设置有过滤组件(4)，过滤组件(4)包括堵头(41)和过滤网(42)，堵头(41)和过滤网(42)固定连接，堵头(41)螺纹连接于定位孔(15)的上端口内，过滤网(42)设置在定位孔(15)内且过滤网(42)下端与定位孔(15)的底壁相抵靠。该多功能角阀在增加功能的同时大大提升了使用寿命。

Description

一种多功能角阀 技术领域
本实用新型属于阀门技术领域，涉及一种角阀，尤其涉及一种多功能角阀。
背景技术
角阀的应用在我们日常生活中已经非常的普遍。但是在人们的使用过程中碰到了一些问题，在密封的管道内，当水流在极短的时间内流速突然提高或降低，则会出现水锤现象，它通常由阀门、水龙头或者水泵的突然关闭和停止引起。水锤现象造成管道中的超压和负压的延伸，因此产生巨大的噪音甚至系统元件的损坏。
随着科技发展，市场上也出现不少带过滤功能的角阀。如申请号：201621384580.X所介绍的一种角阀即带有止回和过滤功能。但是它的过滤网拆卸十分不易，拆卸清洗过滤网时要将整个出水端拆解，不方便清洗和安装。
所以解决上述存在的问题是我们当下刻不容缓要解决的问题。
发明内容
本实用新型的目的是针对现有技术存在的上述问题，提出了一种带过滤及防水锤的角阀，所要解决的技术问题是如何在丰富角阀功能的同时提高使用寿命。
本实用新型的目的可通过下列技术方案来实现：
一种多功能角阀，包括下端为进水端以及侧部具有出水端的阀体，阀体内设有将进水端和出水端相连通的过水孔以及能控制过水孔启闭的阀芯组件，所述进水端的端口内设有止回机构，所述进水端外周面上还设有向上倾斜的安装孔，所述安装孔处固连有水锤消除器，所述出水端外周面上贯穿设置有下端封闭的定位孔，所述定位孔轴线与出水端轴线垂直，定位孔直径要大于出水端内径，所述定位孔内设置有过滤组件，所述过滤组件包括堵头和过滤网，堵头和过滤网固定连接，所述堵头螺纹连接于定位孔的上端口内，过滤网设置在定位孔内且过滤网下端与定位孔的底壁相抵靠。
进水端端口内设有止回机构，止回机构能防止进水端断水，导致管路内水流倒流，从而导致干抽现象破坏设备，大大提高了使用时候的安全性。止回机构在一定程度上还能起到缓冲作用，对水锤起到一定的消除效果。进水端外侧面上还设有安装孔，安装孔倾斜开设在进水端外侧，这样设置能大大减小阀体的空间占用率，提高了对各种安装环境的适用性。安装孔向阀体方向倾斜，能减小工人安装多功能阀的施工难度，让进水端与管路对接不受水锤消除器影响，提高安装效率。水锤消除器与安装孔螺纹连接，水锤消除器能有效的消除水锤等冲击波的产生大大提高了阀体的安全性和使用寿命。止回机构和水锤消除器都设置在进水端上，能使得水锤在进水端内即被消除，不会危害到阀芯组件或者对接出水端的设备。水锤消除器和止回机构双重消除冲击波，大大提高了工作效率和阀体的安全性，同时这样设置能消除激流等冲击波通过阀体所产生的噪音，实用性好。
出水端上开设有定位孔，过滤组件设置在定位孔内。过滤组件由堵头和过滤网组成，过滤网与定位孔间隙配合，定位孔的孔径要略大于出水端径向直径，这样设置的好处是，过滤网能将整个出水端径向截断，使得水流只能流经过滤网再流出出水端，能将杂质完全过滤，定位孔轴线与出水端轴线垂直，使得过滤网安装在定位孔内，过滤网轴线也与出水端轴线垂直，使得水流正对过滤网，这样设置能有效减少水流流经过滤网的阻力，使得水流通畅，防止异响产生。过滤网设置在定位孔内且过滤网下端与定位孔的底壁相抵靠，这样设置使得过滤网不易被水流冲歪或者冲坏，过滤网本身结构强度就不是很高，其上端与堵头下端固定连接，下端再与定位孔底壁抵靠，能使得过滤网被牢牢的固定在出水端内，大大提升结构强度，阀体使用寿命得到提升。
在上述的一种多功能角阀中，所述水锤消除器包括具有内腔的外壳和芯子，外壳下端设有导流孔，导流孔上端口孔径大于导流孔下端口孔径，所述芯子设置在内腔靠近导流孔上端口处，芯子能沿导流孔的开设方向相对于外壳滑动，所述芯子外周面上设有环形凹槽，环形凹槽内设有密封垫圈，所述密封垫圈外周面与内腔内壁抵靠形成 密封，芯子靠近导流孔一端的侧面上设有凸起，芯子背离导流孔一端的侧面上设有减重槽，所述外壳的下端面设有螺纹连接部，螺纹连接部与安装孔螺纹连接，螺纹连接部上设有将导流孔与进水端相连通的连接孔。
水锤消除器的外壳呈筒形结构，外壳的下端具有导流孔，导流孔将内腔与安装孔连通，外壳下端面上还设有螺纹连接部，其作用在于能和安装孔进行螺纹连接。螺纹连接部上还设有将导流孔与进水端相连通的连接孔。芯子能沿导流孔的开设方向相对于外壳滑动，芯子外周面上设有环形凹槽，其作用在于能设置密封垫圈，密封垫圈可以与内侧壁抵靠形成密封。本实用新型中芯子外侧面上设有两个环形凹槽，环形凹槽内都设有密封垫圈，双密封垫圈设置大大提升了与外壳内腔壁之间的密封性能。芯子可以沿着导流孔轴线方向相对外壳进行位移来对冲击波进行缓冲减压，结构简单，效果拔群。水锤消除器，主要是利用压力差的方式来对水流进行缓冲，外壳上端面到芯子之间的空间处于密闭状态能，当冲击波撞击芯子时候，芯子向上位移，内部空间气体压缩，冲击波消除后，芯子复位，内部空间恢复正常。开口处下端面直径小于开口处上端面直径，芯子靠近开口处一段侧面上设有凸起。开口上大下小，这样能在开口处预留足够大的空间给冲击波，芯子上的凸起则是能第一时间与冲击波接触从而让芯子发生位移。这样设置能使得冲击波最大程度的被缓冲打散，消除水锤，实用性很强。芯子上设有的减重槽，能使得芯子重量大大降低，使得反应更加灵敏，能轻松的应对冲击而发生位移达到缓冲减压的作用。
在上述的一种多功能角阀中，安装孔端口处设有凹槽，所述水锤消除器的螺纹连接部外侧套设有O型垫圈，O型垫圈位于凹槽内且O型垫圈的外周面与凹槽的内壁抵靠形成密封。
水锤消除器与安装孔为螺纹连接是硬密封，O型垫圈外周面与凹槽内壁之间为软密封，软、硬密封结合，双重密封大大提升了水锤消除器与安装孔之间的密封效果，使得阀体的安全性得到大幅度提升。
在上述的一种多功能角阀中，所述定位孔上端口内侧设有抵靠槽，所述堵头上端外周面上具有与抵靠槽相抵的凸缘，所述堵头靠近凸缘的外周面上设有环槽，环槽内设有密封圈，密封圈与定位孔内侧壁抵靠形成密封，堵头上端面上具有拆卸槽，堵头下端面上还设有减重孔，过滤网与堵头下端面固定连接，过滤网呈上下两端开口的筒形，过滤网的外周面上开设有进水孔，所述进水孔正对出水端的进口。
堵头与定位孔螺纹连接为一重密封，堵头上的密封垫圈与定位孔内壁软密封为二重密封，堵头上的凸缘能与抵靠端抵靠形成硬密封为三重密封。三重密封大大提升了堵头与定位孔之间的密封效果。而且密封垫圈与定位孔之间的软密封容易随着时间和使用而老化，老化之后软密封效果可能变差或者失效，密封安全性得不到保障。所以凸缘与抵靠端之间的硬密封大大提升了堵头与定位孔之间的密封性。过滤网上开设有进水孔，进水孔正对水流方向，这样设置的好处是，能使得水流都从进水孔流经，这样杂质都能留在过滤网内部，当过滤组件需要清洗时只需要，直接将其拿出冲洗即可防止对阀体进行二次污染。堵头上端面上还设有拆卸槽，这样设置使得过滤组件必须通过专用工具来对其进行拆卸，防止阀体被人为破坏或者意外被开启，造成危害。这样设置能提高阀体整体的安全性。
在上述的一种多功能角阀中，所述阀芯组件包括阀帽、阀杆和阀芯，阀体上端开口且阀帽固定于阀体的上端开口处，阀杆穿设在阀帽内，阀杆与阀帽轴向固定且阀杆能相对于阀帽转动，阀帽下端设有装配孔，阀芯上端伸入装配孔内并形成周向固定，阀杆下端与阀芯上端螺纹连接，所述过水孔上端口处设有环形凸起，阀芯下端设有密封垫，密封垫抵靠在环形凸起上形成密封。
阀杆与阀帽之间轴向固定，使得阀杆无法上下运动而可以做周向旋转，阀芯与阀杆螺纹连接并且阀芯不能周向旋转但是可以山下位移，这样设置旋转阀杆则能带动阀芯沿着轴线上下运动。过水孔正对阀芯设置，当阀芯向下运动则能与过水孔抵靠形成密封，从而将水流截止。阀芯下端面上设有密封垫，过水孔上端口出设有环形凸起， 密封垫能与环形凸起抵靠产生形变，这样设置使得阀芯与过水孔之间的密封效果大大提升。
在上述的一种多功能角阀中，所述进水端外侧还设有装饰盖。
装饰盖的设置美观大气，提高产品的美感。
与现有技术相比，本多功能角阀进水端内设有止回机构，止回机构具有一定的防水锤功能，进水端外周面上还设有安装孔，安装孔上螺纹连接有水锤消除器，止回机构和水锤消除器都设置在出水端，双重缓冲消除水锤能有效保护阀体大大提升阀体寿命。出水端设有可拆卸的过滤组件使得阀体具有过滤功能的同时方便清洗，阀体上端还具有能控制过水孔启闭的阀芯组件，这样设置丰富了本角阀的功能。
附图说明
图1是本多功能角阀的剖视图。
图2是本多功能角阀阀体的剖视图。
图3是水锤消除器的剖视图。
图4是过滤组件的剖视图。
图中，1、阀体；11、进水端；12、出水端；13、过水孔；131、环形凸起；14、安装孔；141、凹槽；15、定位孔；151、抵靠槽；2、阀芯组件；21、阀帽；211、装配孔；22、阀杆；23、阀芯；24、密封垫；3、水锤消除器；31、外壳；311、导流孔；312、螺纹连接部；313、连接孔；32、芯子；321、环形凹槽；322、凸起；323、减重槽；33、密封垫圈；4、过滤组件；41、堵头；411、凸缘；412、环槽；413、拆卸槽；414、减重孔；42、过滤网；421、进水孔；43、密封垫；5、止回机构；6、O型垫圈；7、装饰盖。
具体实施方式
以下是本实用新型的具体实施例并结合附图，对本实用新型的技术方案作进一步的描述，但本实用新型并不限于这些实施例。
如图1-2所示，一种多功能角阀，包括具有进水端11和出水端12的阀体1，进水端11竖直向下设置在阀体1上。进水端11端口内设有止回机构5，当管路内出现负压或者倒流时，止回机构5能将本角阀与管路断开连接从而起到保护阀体1和后端用水设备。止回机构5内具有阀芯与弹簧，阀芯依靠弹簧弹力抵靠在出水端12上形成密封，在正常通水时候，止回机构5也能起到一定的缓冲水流冲击波的作用具有一定的防水锤功能。
出水端12外周面上还设有向上倾斜的安装孔14，安装孔14端口处设有凹槽141，安装孔14能与水锤消除器3上的螺纹连接部312进行螺纹连接固定。螺纹连接部312外周面上还套设有O型垫圈6，O型垫圈6能与凹槽141抵靠形成密封，螺纹连接部312与安装孔14之间螺纹连接能形成硬密封，O型垫圈6与凹槽141之间形成软密封。硬密封与软密封结合形成双重密封，大大提升水锤消除器3与阀体1之间的密封效果。水锤消除器3还包括外壳31和芯子32，外壳31呈下端开口的筒形结构，芯子32设置在外壳31的内腔内，且芯子32依靠设置在外周面环形凹槽321内的密封垫圈33与外壳31的内腔侧壁形成密封。芯子32外周面上具有两个环形凹槽321且都具有密封垫圈33，能大大提升芯子32与外壳31内侧壁之间的密封性。外芯子32能相对外壳31进行轴线方向的运动。外壳31下端面上还设有导流孔311，导流孔311能使得外壳31内腔与安装孔14连通，芯子32靠近导流孔311一侧上设有凸起322，凸起322能起到缓冲水流，增加芯子32反应灵敏度。芯子32背离导流孔311一侧侧面上设有减重槽323，减重槽323能让芯子32的重量大大降低，使得运动起来更加灵敏。由于芯子32与外壳31内侧壁形成密封，所以其间具有一定的气压，水流流经阀体1，导流孔311将外壳31内腔与阀体1连通，水流也具有一定的水压。所以正常情况下芯子32的左端气压与右端水压应该相等，而当水锤出现，水压骤增时，芯子32朝向背离导流孔311方向运动，压缩腔体内气体从而使得气压增大与水压再次持平。当水锤消失，芯子 32复位，此结构简单，防水锤效果好。而且水锤消除器4设置在进水端11，止回机构3也设置在进水端11，双重缓冲防水锤设置，能大大提升阀体的安全性。
如图2所示，阀体1进水端11与出水端12之间设有将两者连通的过水孔13，正对过水孔13的阀体1上端设有阀芯组件2，阀芯组件2包括阀帽21、阀杆22和阀芯23，阀体1上端开口且阀帽21固定于阀体1的上端开口处，阀杆22穿设在阀帽21内，阀杆22与阀帽21轴向固定且阀杆22能相对于阀帽21转动，阀帽21下端设有装配孔211，阀芯23上端伸入装配孔211内并形成周向固定，阀杆22下端与阀芯23上端螺纹连接。阀芯23下端设有正对过水孔13的密封垫24，当转动阀杆22时，则阀芯23能沿着轴线方向上下运动。当阀芯23向下运动时能使得密封垫24与过水孔13抵靠形成密封。使得阀体1完成切断供水，向上运动则水流通，阀体1开启供水。过水孔13上还设有环形凸起131，这样设置的好处是，密封垫24能与环形凸起131抵靠形变形成密封，其密封效果要远远好于之密封垫24下端面与过水孔13上端面之间抵靠的密封。
如图1-4所述，出水端12上设有与其轴线垂直的定位孔15，定位孔15内设有过滤组件4，过滤组件4包括堵头41和过滤网42。堵头41下端与过滤网42上端固定连接，定位孔15的直径要比出水端12的直径略大，过滤组件4外周面与定位孔15内周面间隙配合。这样设置能使得水流都得从过滤组件中流经，使得过滤效果更好。堵头41外周面上设有螺纹，能与定位孔15进行螺纹连接固定堵头上端面外侧具有凸缘411，凸缘411能和定位孔15上的抵靠槽151抵靠形成硬密封。凸缘411与堵头41螺纹之间的外周面上还设有环槽412，环槽412内设有密封垫43。密封垫43能与定位孔15内侧壁形成软密封。硬密封与软密封结合形成双重密封效果大大提升了过滤组件4与定位孔15之间的密封效果。过滤网42呈上下开口的筒形结构，上端与堵头41下端固定，下端与定位孔下端面抵靠，过滤网42贯穿设置在出水端12的通道内。过滤网42还设有进水孔421，进水孔正对水流方向设置，这样能使得水流都流经过滤网42内腔中，使得杂质都留在过滤网42内。从而清洗时候，只需要拿出过滤网进行冲洗即可，防止二次污染。堵头41上端面上还设有拆卸槽413，其作用是能防止过滤组件4被人意外开启，只能使用对应拆卸槽413的专业工具才能对堵头41进行拆卸，使用专业工具拆卸或安装比较方便，大大提升了装配效率。同时专业工具拆卸能有效防止温度原因堵头41与定位孔15之间热胀冷缩导致螺纹之间卡死难以拧出堵头41。堵头41下端面上还设有减重孔414，能有效解决成本和降低本角阀的重量。
进水端11外周面靠近端口位置上设有装饰盖7，当阀体安装时，装饰盖7能起到很好的美观效果。
本文中所描述的具体实施例仅仅是对本实用新型精神作举例说明。本实用新型所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本实用新型的精神或者超越所附权利要求书所定义的范围。

Claims (6)

  1. 一种多功能角阀，包括下端为进水端(11)以及侧部具有出水端(12)的阀体(1)，阀体(1)内设有将进水端(11)和出水端(12)相连通的过水孔(13)以及能控制过水孔(13)启闭的阀芯组件(2)，其特征在于，所述进水端(11)的端口内设有止回机构(5)，所述进水端(11)外周面上还设有向上倾斜的安装孔(14)，所述安装孔(14)处固连有水锤消除器(3)，所述出水端(12)外周面上贯穿设置有下端封闭的定位孔(15)，所述定位孔(15)轴线与出水端(12)轴线垂直，定位孔(15)直径要大于出水端(12)内径，所述定位孔(15)内设置有过滤组件(4)，所述过滤组件(4)包括堵头(41)和过滤网(42)，堵头(41)和过滤网(42)固定连接，所述堵头(41)螺纹连接于定位孔(15)的上端口内，过滤网(42)设置在定位孔(15)内且过滤网(42)下端与定位孔(15)的底壁相抵靠。
  2. 根据权利要求1所述的一种多功能角阀，其特征在于，所述水锤消除器(3)包括具有内腔的外壳(31)和芯子(32)，外壳(31)下端设有导流孔(311)，导流孔(311)上端口孔径大于导流孔(311)下端口孔径，所述芯子(32)设置在内腔靠近导流孔(311)上端口处，芯子(32)能沿导流孔(311)的开设方向相对于外壳(31)滑动，所述芯子(32)外周面上设有环形凹槽(321)，环形凹槽(321)内设有密封垫圈(33)，所述密封垫圈(33)外周面与内腔内壁抵靠形成密封，芯子(32)靠近导流孔(311)一端的侧面上设有凸起(322)，芯子(32)背离导流孔(311)一端的侧面上设有减重槽(323)，所述外壳(31)的下端面设有螺纹连接部(312)，螺纹连接部(312)与安装孔(14)螺纹连接，螺纹连接部(312)上设有将导流孔(311)与进水端(11)相连通的连接孔(313)。
  3. 根据权利要求1所述的一种多功能角阀，其特征在于，所述安装孔(14)端口处设有凹槽(141)，所述水锤消除器(3)的螺纹连接部(312)外侧套设有O型垫圈(6)，O型垫圈(6)位于凹槽(141)内且O型垫圈(6)的外周面与凹槽(141)的内壁抵靠形成密封。
  4. 根据权利要求1所述的一种多功能角阀，其特征在于，所述定位孔(15)上端口内侧设有抵靠槽(151)，所述堵头(41)上端外周面上具有与抵靠槽(151)相抵的凸缘(411)，所述堵头(41)靠近凸缘(411)的外周面上设有环槽(412)，环槽(412)内设有密封圈(43)，密封圈(43)与定位孔(15)内侧壁抵靠形成密封，堵头(41)上端面上具有拆卸槽(413)，堵头(41)下端面上还设有减重孔(414)，过滤网(42)与堵头(41)下端面固定连接，过滤网(42)呈上下两端开口的筒形，过滤网(42)的外周面上开设有进水孔(421)，所述进水孔(421)正对出水端(12)的进口。
  5. 根据权利要求1所述的一种多功能角阀，其特征在于，所述阀芯组件(2)包括阀帽(21)、阀杆(22)和阀芯(23)，阀体(1)上端开口且阀帽(21)固定于阀体(1)的上端开口处，阀杆(22)穿设在阀帽(21)内，阀杆(22)与阀帽(21)轴向固定且阀杆(22)能相对于阀帽(21)转动，阀帽(21)下端设有装配孔(211)，阀芯(23)上端伸入装配孔(211)内并形成周向固定，阀杆(22)下端与阀芯(23)上端螺纹连接，所述过水孔(13)上端口处设有环形凸起(131)，阀芯(23)下端设有密封垫(24)，密封垫(24)抵靠在环形凸起(131)上形成密封。
  6. 根据权利要求1所述的一种多功能角阀，其特征在于，所述进水端(11)外侧还设有装饰盖(7)。
PCT/CN2020/102942 2019-08-01 2020-08-07 一种多功能角阀 WO2021017917A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201921242320.2 2019-08-01
CN201921242320.2U CN210623704U (zh) 2019-08-01 2019-08-01 一种多功能角阀

Publications (1)

Publication Number Publication Date
WO2021017917A1 true WO2021017917A1 (zh) 2021-02-04

Family

ID=70762649

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/102942 WO2021017917A1 (zh) 2019-08-01 2020-08-07 一种多功能角阀

Country Status (2)

Country Link
CN (1) CN210623704U (zh)
WO (1) WO2021017917A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210623704U (zh) * 2019-08-01 2020-05-26 浙江达柏林阀门有限公司 一种多功能角阀
CN113217670B (zh) * 2021-07-08 2021-09-17 龙口市福利车辆配件厂 一种铜制分水器阀门
CN114719049A (zh) * 2022-04-14 2022-07-08 泉州市唯达卫浴科技有限公司 一种防烫恒温智能型龙头及其加工工艺

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1748234A1 (en) * 2005-07-26 2007-01-31 Effebi S.p.A. Valve body for hydraulic systems
CN201651404U (zh) * 2010-01-12 2010-11-24 浙江沃尔达铜业有限公司 一种过滤角阀
TWM418209U (en) * 2011-08-03 2011-12-11 Hocheng Corp Filter net type angle valve
CN205824275U (zh) * 2016-07-12 2016-12-21 玉环云达阀门有限公司 一种防水锤角阀
CN205908864U (zh) * 2016-07-01 2017-01-25 福建省海洋阀门科技有限公司 一种多功能管道安全阀
CN206299848U (zh) * 2016-12-16 2017-07-04 浙江万盛机械有限公司 一种角阀
CN210623704U (zh) * 2019-08-01 2020-05-26 浙江达柏林阀门有限公司 一种多功能角阀

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1748234A1 (en) * 2005-07-26 2007-01-31 Effebi S.p.A. Valve body for hydraulic systems
CN201651404U (zh) * 2010-01-12 2010-11-24 浙江沃尔达铜业有限公司 一种过滤角阀
TWM418209U (en) * 2011-08-03 2011-12-11 Hocheng Corp Filter net type angle valve
CN205908864U (zh) * 2016-07-01 2017-01-25 福建省海洋阀门科技有限公司 一种多功能管道安全阀
CN205824275U (zh) * 2016-07-12 2016-12-21 玉环云达阀门有限公司 一种防水锤角阀
CN206299848U (zh) * 2016-12-16 2017-07-04 浙江万盛机械有限公司 一种角阀
CN210623704U (zh) * 2019-08-01 2020-05-26 浙江达柏林阀门有限公司 一种多功能角阀

Also Published As

Publication number Publication date
CN210623704U (zh) 2020-05-26

Similar Documents

Publication Publication Date Title
WO2021017917A1 (zh) 一种多功能角阀
CN201007377Y (zh) 一种自动断水阀
CN108131473A (zh) 一种带内置泄压功能的单向阀
CN2795589Y (zh) 排污泵用止回阀
CN105833455A (zh) 止回式消火栓
CN212564695U (zh) 防水锤缓冲角阀
CN211501754U (zh) 回水锁断阀
CN108758040B (zh) 一种呼吸减压阀
CN211624277U (zh) 一种改进高性能球阀
CN211231802U (zh) 排气阀
CN203297645U (zh) 耐高压阀芯
CN209762279U (zh) 一种弹簧式自调压水龙头
CN219975551U (zh) 一种铆压结构的防冻龙头
CN213064778U (zh) 一种按压式暖气排气阀
CN202590481U (zh) 一种自带减压功能的过滤器
CN209781785U (zh) 防漏水装置
CN219888774U (zh) 一种抗冲击型旋塞阀
CN210950103U (zh) 一种排污过滤阀
CN114776836B (zh) 一种防水烤炉阀
CN210830492U (zh) 一种新型截止阀
CN208474527U (zh) 一种卧式快开角阀
JPH0523897Y2 (zh)
CN210318588U (zh) 一种可更换的旁通阀
CN214367773U (zh) 一种减压稳压外卡式室内消防栓
CN204459355U (zh) 防泄漏型排气阀

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20847913

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20847913

Country of ref document: EP

Kind code of ref document: A1