WO2019128921A1 - 一种竖井掘进的环形撑靴推进系统 - Google Patents

一种竖井掘进的环形撑靴推进系统 Download PDF

Info

Publication number
WO2019128921A1
WO2019128921A1 PCT/CN2018/123088 CN2018123088W WO2019128921A1 WO 2019128921 A1 WO2019128921 A1 WO 2019128921A1 CN 2018123088 W CN2018123088 W CN 2018123088W WO 2019128921 A1 WO2019128921 A1 WO 2019128921A1
Authority
WO
WIPO (PCT)
Prior art keywords
torque beam
propulsion
cylinder
boot
shoe
Prior art date
Application number
PCT/CN2018/123088
Other languages
English (en)
French (fr)
Inventor
杨聚辉
张喜冬
肖威
闫扬义
吕旦
史伟
周倩
冯琳
Original Assignee
中铁工程装备集团有限公司
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 中铁工程装备集团有限公司 filed Critical 中铁工程装备集团有限公司
Priority to CA3086807A priority Critical patent/CA3086807C/en
Publication of WO2019128921A1 publication Critical patent/WO2019128921A1/zh

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D1/00—Sinking shafts
    • E21D1/03—Sinking shafts mechanically, e.g. by loading shovels or loading buckets, scraping devices, conveying screws
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier

Definitions

  • the invention relates to the technical field of shaft excavation equipment, in particular to an annular propping propulsion system for shaft excavation.
  • the propping propulsion structure is generally a center outwardly supporting structure, that is, the propping shoe.
  • the tension cylinder action line points to the center of the tunnel or shaft.
  • the present invention provides an annular hoisting propulsion system for shaft excavation, which solves the problems of complicated structure, inflexible operation and affecting transportation of materials in the prior art propulsion propulsion system.
  • an annular hoisting propulsion system for shaft excavation comprising an intermediate column, a plurality of shoe plates and a plurality of struts, the shoe plate and the hoisting cylinder are connected end to end to form a ring structure, the shoe plate
  • the fixed torque beam and the telescopic torque beam are connected to the intermediate column, and one end of the telescopic torque beam is sleeved in the fixed torque beam, and the other end is movably connected with the shoe;
  • the inner wall of the shoe plate is connected with a propulsion cylinder, and one end of the propulsion cylinder is
  • the shoe plates are connected and the other end is connected to a fixed torque beam; the pinch cylinder and the propulsion cylinder are both controlled by a controller.
  • a fixing slot is arranged in a middle portion of the fixed torque beam, and a connecting plate is fixed on a top of the mounting slot, and a radial cylinder is arranged inside the mounting slot, one end of the radial cylinder is fixedly connected with the connecting plate, and the other end is fixed with the telescopic torque beam connection.
  • the end of the telescopic torque beam opposite to the shoe plate is provided with a connecting ball; the inner wall of the shoe plate is provided with a sliding slot, the sliding slot is provided with a slider, and the sliding block is provided with a spherical groove, and the spherical groove is matched with the connecting ball.
  • Each of the shoe boards is provided with two propulsion cylinders, and the two propulsion cylinders are respectively disposed on two sides of the fixed torque beam.
  • the middle column is a hollow cylinder, and the outer wall of the middle column is provided with a connecting ear block, and the middle column is connected with the fixed torque beam through the connecting ear block.
  • the shoe is a curved plate.
  • the buckling cylinder of the invention adopts a circumferential arrangement, and the middle column structure of the strut device is connected by the torque beam, and the anti-torque and propulsion force of the shoe device is provided, the structure is simpler, the processing cost of the shoe is lower, and the inner space of the tunnel or the shaft is larger. It is more conducive to material transportation and equipment layout.
  • the invention adopts a nested torque beam to make the telescopic torque beam sleeved inside the fixed torque beam, and realizes the expansion and contraction of the telescopic torque beam through the radial cylinder, which is simple in operation and saves space.
  • the telescopic torque beam is connected to the slider through the ball joint and moves along the shoe. The movement is flexible and the movement is stable, ensuring smooth and rapid construction and improving work efficiency.
  • Figure 1 is a front view of the structure of the present invention.
  • Figure 2 is a top plan view of the present invention.
  • Figure 3 is a partial enlarged view of a portion A in Figure 1.
  • Embodiment 1 is an annular hoisting propulsion system for a shaft excavation, comprising an intermediate column 8, a plurality of shoe plates 1 and a plurality of struts 2, wherein the shoe plates 1 are curved plates.
  • the shoe board 1 and the support cylinder 2 are connected end to end to form a ring structure, and the number of the shoe board 1 and the support cylinder 2 is selected according to the actual situation of the shaft; the ring structure is folded by the support cylinder, and the expansion can be adjusted The diameter of the ring structure.
  • the shoe plate 1 is connected to the intermediate column 8 by a fixed torque beam 6 and a telescopic torque beam 5, and the fixed torque beam 6 and the telescopic torque beam 5 support the shoe plate, and one end of the telescopic torque beam 5 is sleeved on the fixed torque beam 6
  • the horizontal movement of the fixed torque beam and the movable connection of the other end to the shoe board 1 can be vertically moved along the shoe board; the inner wall of the shoe board 1 is connected with the propulsion cylinder 3, and one end of the propulsion cylinder 3 is connected with the shoe board 1,
  • the other end is connected with the fixed torque beam 6, and the expansion and contraction of the propulsion cylinder realizes the up and down movement of the device to provide the propulsion force of the device;
  • the support cylinder 2 and the propulsion cylinder 3 are connected with the controller to realize automatic control and simple operation. High precision.
  • Each of the fixed torque beams 6 is provided with a mounting groove 6-1, and the mounting groove is arranged in parallel with the fixed torque beam.
  • the top of the mounting groove 6-1 is fixedly provided with a connecting plate 6-2, and the inside of the mounting groove 6-1 is provided.
  • Embodiment 2 is an annular hoisting propulsion system for a shaft excavation.
  • the end of the telescopic torque beam 5 opposite to the shoe plate 1 is provided with a connecting ball 5-1;
  • the inner wall of the shoe plate 1 is provided with a vertically arranged chute 1-1, a slider 1-2 is disposed in the chute 1-1, and a spherical slot 1-3 is disposed on the slider 1-2, and the spherical slot 1-3 cooperates with the connecting ball 5-1, and passes through the spherical slot 1 -3 and the connecting ball 5-1 realize the ball joint of the telescopic torque beam and the shoe board, and the movement is flexible.
  • the other structure is the same as that of the first embodiment.
  • Embodiment 3 is an annular hoisting propulsion system for shaft boring, comprising four shoe plates 1 and four struts 2, each of which is provided with two propulsion cylinders 3, two propulsion cylinders 3 They are respectively disposed on both sides of the fixed torque beam 6, so that the propulsive force is more stable and uniform.
  • the intermediate column 8 has a hollow cylindrical shape, and the outer wall of the intermediate column 8 is provided with a connecting lug 8-1, and the intermediate post 8 is connected to the fixed torque beam 6 via the connecting lug 8-1.
  • the other structure is the same as that of the second embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

一种竖井掘进的环形撑靴推进系统，包括中间柱（8）、若干个靴板（1）和若干个撑紧缸（2），靴板（1）和撑紧缸（2）首尾相连组成环形结构，靴板（1）通过固定扭矩梁（6）和伸缩扭矩梁（5）与中间柱（8）相连接，伸缩扭矩梁（5）的一端套设在固定扭矩梁（6）中、另一端与靴板（1）活动连接；靴板（1）的内壁上连接有推进缸（3），推进缸（3）的一端与靴板（1）相连接、另一端与固定扭矩梁（6）相连接；撑紧缸（2）和推进缸（3）均与控制器相连接。该系统的撑紧缸采用环向布置，通过扭矩梁连接撑靴装置中间柱结构，提供撑靴装置反扭矩及推进力，结构更简单，撑靴加工成本更低，并且隧道或竖井内部空间更大，更利于物料运输及设备布置。

Description

一种竖井掘进的环形撑靴推进系统 技术领域
本发明涉及竖井开挖设备技术领域，特别是指一种竖井掘进的环形撑靴推进系统。
背景技术
随着城市建设的不断发展，竖井施工的应用越来越多，撑靴推进系统是竖井设备中必不可少的一部分。撑靴推进系统作为为设备提供稳定的推进力、提供设备固定点的结构，在竖井工程中及隧道设备中占有重要位置，撑靴推进结构一般为中心向外撑紧结构，也就是撑靴的撑紧油缸作用线都指向隧道或竖井中心，该控制简单，应用成熟，但撑靴结构复杂、成本高，并且会占据隧道或中心空间，影响物料的运输。
发明内容
针对上述背景技术中的不足，本发明提出一种竖井掘进的环形撑靴推进系统，解决了现有技术中撑靴推进系统结构复杂，操作不灵活，影响物料的运输的问题。
本发明的技术方案是这样实现的：一种竖井掘进的环形撑靴推进系统，包括中间柱、若干个靴板和若干个撑紧缸，靴板和撑紧缸首尾相连组成环形结构，靴板通过固定扭矩梁和伸缩扭矩梁与中间柱相连接，伸缩扭矩梁的一端套设在固定扭矩梁中、另一端与靴板活动连接；靴板的内壁上连接有推进缸，推进缸的一端与靴板相连接、另一端与固定扭矩梁相连接；撑紧缸和推进缸均由控制器控制。
所述固定扭矩梁的中部设有安装槽，安装槽的顶部固定设有连接板，安装槽的内部设有径向缸，径向缸的一端与连接板固定连接、另一端与伸缩扭矩梁固定连接。
所述伸缩扭矩梁与靴板相对的一端设有连接球；靴板的内壁上设有滑槽，滑槽中设有滑块，滑块上设有球形槽，球形槽与连接球相配合。
所述每个靴板上设有两个推进缸，两个推进缸分别设置在固定扭矩梁的两侧。
所述中间柱为中空筒状，中间柱的外壁上设有连接耳块，中间柱通过连接耳块与固定扭矩梁相连接。
所述靴板为弧形板。
本发明撑紧缸采用环向布置，通过扭矩梁连接撑靴装置中间柱结构，提供撑靴装置反扭矩及推进力，结构更简单，撑靴加工成本更低，并且隧道或竖井内部空间更大，更利于物料运输及设备布置。本发明通过嵌套式扭矩梁，使伸缩扭矩梁套设在固定扭矩梁内部，通过径向缸实现伸缩扭矩梁的伸缩，操作简单，节省占用空间。伸缩扭矩梁通过球形铰接与 滑块连接，沿靴板移动，动作灵活，运动稳定，确保施工平稳快速进行，提高工作效率。
附图说明
为了更清楚地说明本发明实施例，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明主视结构图。
图2为本发明俯视结构图。
图3为图1中A处局部放大图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有付出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
如图1-3所示，实施例1，一种竖井掘进的环形撑靴推进系统，包括中间柱8、若干个靴板1和若干个撑紧缸2，所述靴板1为弧形板，靴板1和撑紧缸2首尾相连组成环形结构，靴板1和撑紧缸2的数量根据竖井实际情况进行选定；通过撑紧缸实现环形结构的收合，同时可调节撑开后环形结构的直径大小。靴板1通过固定扭矩梁6和伸缩扭矩梁5与中间柱8相连接，固定扭矩梁6和伸缩扭矩梁5对靴板起到支撑作用，伸缩扭矩梁5的一端套设在固定扭矩梁6中，沿固定扭矩梁水平移动、另一端与靴板1活动连接，可沿靴板竖直移动；靴板1的内壁上连接有推进缸3，推进缸3的一端与靴板1相连接、另一端与固定扭矩梁6相连接，通过推进缸的伸缩，实现装置的上下移动，提供装置的推进力；撑紧缸2和推进缸3均与控制器相连接，实现自动化控制，操作简单，精度高。
每个固定扭矩梁6的内部均设有安装槽6-1，安装槽与固定扭矩梁平行设置，安装槽6-1的顶部固定设有连接板6-2，安装槽6-1的内部设有径向缸7，径向缸水平设置在安装槽中，径向缸7的一端与连接板6-2固定连接、另一端与伸缩扭矩梁5固定连接；通过径向缸的伸缩实现伸缩扭矩梁5的伸缩。
实施例2，一种竖井掘进的环形撑靴推进系统，所述伸缩扭矩梁5与靴板1相对的一端设有连接球5-1；靴板1的内壁上设有竖直设置的滑槽1-1，滑槽1-1中设有滑块1-2，滑块1-2上设有球形槽1-3，球形槽1-3与连接球5-1相配合，通过球形槽1-3与连接球5-1实现伸缩扭矩梁与靴板的球铰接，运动灵活。
其他结构与实施例1相同。
实施例3，一种竖井掘进的环形撑靴推进系统，包括四个靴板1和四个撑紧缸2，所述每个靴板1上设有两个推进缸3，两个推进缸3分别设置在固定扭矩梁6的两侧，使推进力更加平稳均匀。
进一步，中间柱8为中空筒状，中间柱8的外壁上设有连接耳块8-1，中间柱8通过连接耳块8-1与固定扭矩梁6相连接。
其他结构与实施例2相同。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (6)

  1. 一种竖井掘进的环形撑靴推进系统，其特征在于：包括中间柱(8)、若干个靴板(1)和若干个撑紧缸(2)，靴板(1)和撑紧缸(2)首尾相连组成环形结构，靴板(1)通过固定扭矩梁(6)和伸缩扭矩梁(5)与中间柱(8)相连接，伸缩扭矩梁(5)的一端套设在固定扭矩梁(6)中、另一端与靴板(1)活动连接；靴板(1)的内壁上连接有推进缸(3)，推进缸(3)的一端与靴板(1)相连接、另一端与固定扭矩梁(6)相连接；撑紧缸(2)和推进缸(3)均由控制器控制。
  2. 根据权利要求1所述的竖井掘进的环形撑靴推进系统，其特征在于：所述固定扭矩梁(6)的中部设有安装槽(6-1)，安装槽(6-1)的顶部固定设有连接板(6-2)，安装槽(6-1)的内部设有径向缸(7)，径向缸(7)的一端与连接板(6-2)固定连接、另一端与伸缩扭矩梁(5)固定连接。
  3. 根据权利要求1或2所述的竖井掘进的环形撑靴推进系统，其特征在于：所述伸缩扭矩梁(5)与靴板(1)相对的一端设有连接球(5-1)；靴板(1)的内壁上设有滑槽(1-1)，滑槽(1-1)中设有滑块(1-2)，滑块(1-2)上设有球形槽(1-3)，球形槽(1-3)与连接球(5-1)相配合。
  4. 根据权利要求3所述的竖井掘进的环形撑靴推进系统，其特征在于：所述每个靴板(1)上设有两个推进缸(3)，两个推进缸(3)分别设置在固定扭矩梁(6)的两侧。
  5. 根据权利要求1所述的竖井掘进的环形撑靴推进系统，其特征在于：所述中间柱(8)为中空筒状，中间柱(8)的外壁上设有连接耳块(8-1)，中间柱(8)通过连接耳块(8-1)与固定扭矩梁(6)相连接。
  6. 根据权利要求1所述的竖井掘进的环形撑靴推进系统，其特征在于：所述靴板(1)为弧形板。
PCT/CN2018/123088 2017-12-25 2018-12-24 一种竖井掘进的环形撑靴推进系统 WO2019128921A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA3086807A CA3086807C (en) 2017-12-25 2018-12-24 Annular thrust system for shaft boring

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711424769 2017-12-25
CN201711424769.6 2017-12-25

Publications (1)

Publication Number Publication Date
WO2019128921A1 true WO2019128921A1 (zh) 2019-07-04

Family

ID=67023073

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/123088 WO2019128921A1 (zh) 2017-12-25 2018-12-24 一种竖井掘进的环形撑靴推进系统

Country Status (3)

Country Link
CN (1) CN109958439A (zh)
CA (1) CA3086807C (zh)
WO (1) WO2019128921A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110284891B (zh) * 2019-07-09 2020-06-16 浙江大学 一种主动式盾构机伸缩摆动系统
CN111287752B (zh) * 2020-04-08 2021-05-28 中铁工程装备集团有限公司 多刀盘大断面竖井掘进装置
CN112253125B (zh) * 2020-09-07 2021-08-10 辽宁三三工业有限公司 一种竖井掘进机支撑推进及步进提升装置
CN112196575B (zh) * 2020-12-02 2021-03-02 中国铁建重工集团股份有限公司 一种水平钻机自动控制方法
CN114215538B (zh) * 2021-12-09 2024-04-12 中国矿业大学徐海学院 一种基于可视化定位技术的掘进机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004053931A1 (de) * 2004-11-05 2006-05-18 Thyssen Schachtbau Gmbh Vorrichtung zum Abteufen von Schächten
KR101057350B1 (ko) * 2008-08-19 2011-08-18 (주)성풍건설 수직터널용 버켓장치
CN203476335U (zh) * 2013-09-16 2014-03-12 中铁隧道装备制造有限公司 一种竖井tbm装置
CN203742602U (zh) * 2014-02-27 2014-07-30 中铁工程装备集团有限公司 中心立柱全断面竖井钻机
CN205477625U (zh) * 2016-01-19 2016-08-17 中煤第三建设（集团）有限责任公司 一种附壁环轨式挖掘机
CN207761642U (zh) * 2017-12-25 2018-08-24 中铁工程装备集团有限公司 竖井掘进的环形撑靴推进系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011153434A (ja) * 2010-01-26 2011-08-11 Jing quan engineering co ltd 伸縮リングプレート式立坑掘削機保持装置及びその施工法
CN104196449B (zh) * 2014-08-19 2016-03-23 中煤矿山建设集团有限责任公司 钻井法凿井垂直钻进钻具
CN106761763B (zh) * 2016-12-07 2018-12-28 中铁工程装备集团有限公司 一种竖井掘进机及其施工方法
CN107314220B (zh) * 2017-05-25 2019-11-22 镇江市得亨建设工程有限公司 一种建筑物抗震支架的斜拉连接件

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004053931A1 (de) * 2004-11-05 2006-05-18 Thyssen Schachtbau Gmbh Vorrichtung zum Abteufen von Schächten
KR101057350B1 (ko) * 2008-08-19 2011-08-18 (주)성풍건설 수직터널용 버켓장치
CN203476335U (zh) * 2013-09-16 2014-03-12 中铁隧道装备制造有限公司 一种竖井tbm装置
CN203742602U (zh) * 2014-02-27 2014-07-30 中铁工程装备集团有限公司 中心立柱全断面竖井钻机
CN205477625U (zh) * 2016-01-19 2016-08-17 中煤第三建设（集团）有限责任公司 一种附壁环轨式挖掘机
CN207761642U (zh) * 2017-12-25 2018-08-24 中铁工程装备集团有限公司 竖井掘进的环形撑靴推进系统

Also Published As

Publication number Publication date
CA3086807A1 (en) 2019-07-04
CA3086807C (en) 2023-08-22
CN109958439A (zh) 2019-07-02

Similar Documents

Publication Publication Date Title
WO2019128921A1 (zh) 一种竖井掘进的环形撑靴推进系统
CN104029153B (zh) 用于回转壳体产品装配的全向移动工装
CN112482577B (zh) 一种大跨空间弦支轮辐式桁架结构体系及施工方法
CN103953353B (zh) 盾构始发反力架及其安装使用方法
CN207761642U (zh) 竖井掘进的环形撑靴推进系统
CN104294914B (zh) 多爪式空间可展结构
CN114525877B (zh) 基于大悬挑倾斜式三角桁架的体育场组合屋盖及施工方法
CN103196684A (zh) 结构试验全方位通用加载系统
CN205955155U (zh) 一种移动式脚手架的辅助支架
CN104727560A (zh) 一种钢筋混凝土结构钢筋骨架成型方法和一种钢筋胎架
CN103276907B (zh) 大跨度铰接式人字形钢拱架的吊装方法
CN207538078U (zh) 一种综合管廊早拆滑移模板装置
CN212078719U (zh) 一种三角桁架管路施工的胎架
CN103422705B (zh) 烟囱的玻璃钢内筒悬挂支撑系统及烟囱
CN102268873A (zh) 重型钢支撑及加工方法
CN205935618U (zh) 一种脚手架定位支撑装置
CN207211676U (zh) 一种建筑工程用的脚手架
CN110438885B (zh) 一种桥梁隧道支撑构件
CN107386294A (zh) 一种水利水电施工用混凝土布料机
CN207609426U (zh) 一种隧道铝模板系统
CN209585727U (zh) 一种拆装式泳池的池岸面板和主梁的连接结构
CN203213399U (zh) 室内钢质支撑柱
CN203225074U (zh) 网架结构广告牌
WO2016201711A1 (zh) 一种伸缩机构
CN207849307U (zh) 一种可旋转式临时照明组合架

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: 18896065

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 3086807

Country of ref document: CA

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18896065

Country of ref document: EP

Kind code of ref document: A1