WO2022007598A1 - Descendeur à protection automatique à une seule main - Google Patents

Descendeur à protection automatique à une seule main Download PDF

Info

Publication number
WO2022007598A1
WO2022007598A1 PCT/CN2021/099944 CN2021099944W WO2022007598A1 WO 2022007598 A1 WO2022007598 A1 WO 2022007598A1 CN 2021099944 W CN2021099944 W CN 2021099944W WO 2022007598 A1 WO2022007598 A1 WO 2022007598A1
Authority
WO
WIPO (PCT)
Prior art keywords
rope
descender
protection
self
descending
Prior art date
Application number
PCT/CN2021/099944
Other languages
English (en)
Chinese (zh)
Inventor
付小华
Original Assignee
浙江唯海科技有限公司
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 浙江唯海科技有限公司 filed Critical 浙江唯海科技有限公司
Publication of WO2022007598A1 publication Critical patent/WO2022007598A1/fr

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
    • A62B1/14—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brakes sliding on the rope

Definitions

  • the invention relates to the technical field of high-altitude descending devices, in particular to a single-hand control self-protection descender.
  • the descender is a protective device used to protect the operator in sports or rescue scenarios such as expansion training, mountaineering, extreme, outdoor, etc.
  • the existing rope descenders have the following shortcomings: (1) those that can be operated with one hand cannot realize automatic protection, and those that can realize automatic protection cannot be operated with one hand;
  • the unique use range is especially important for freeing hands, such as fire rescue, military operations, etc.
  • Descenders such as figure 8, ATC, SIMPLE, etc., are operated with one hand but do not have a protective function. After the hand is released from the rope, the user will fall.
  • Descenders such as STOP, ID, etc., have an automatic stop function after being subjected to force, but it is necessary to hold the handle with the other hand other than the rope to achieve descending; (2)
  • the existing rope descenders do not protect the end of the rope In the case of a knot, if the descent reaches the end of the rope, the rope will break away, and the user faces the risk of falling. This requires the user to have professional skills during use and to spend time tying the end of the rope.
  • the descender without automatic protection relies entirely on the grip of the hand holding the rope to achieve the purpose of controlling the descending speed and stopping. The rope will come out of the descender, resulting in a falling accident.
  • the existing descender with automatic protection also uses a hand other than the rope to operate the handle to achieve the descent.
  • the descending process is not much different from that without automatic protection.
  • European Patent Publication No. EP0688581B1 discloses a descender-tethering device comprising: a first side guide flange for the rope, which includes a braking protrusion, a second side guide method for the rope A flange that is separated from the first flange by a lateral gap for rope passage and capable of being in spaced positions for placing and removing the rope and the rope is confined to the lateral gap serving as a rope passage A cam that engages between the first and second flanges and is movable toward and away from the brake projection, a cam operating unit that can be actuated by a user to move the cam away from the brake The movable protrusion is displaced, and the cam return spring is used to push the cam to move between the first and second flanges, and is used as the lateral gap of the rope channel, and the lateral gap is between the rope input end near the braking protrusion and the cam near the cam.
  • the rope output ends are formed to allow orientation of the rope output ends according to the locked orientation in which the rope passes through the lateral gap which acts as a rope passage while surrounding the cam and orients the cam towards the lock.
  • At least one of the first and second flanges extending longitudinally from the connecting end to the coupling end where the braking boss, the cam, and the transverse gap serving as a cable passage are located at the connecting end, and the coupling A mechanism is located at the coupling end.
  • the descender-tethering device achieves assisted sliding in the absence of tension on the rope by means of a cam return spring that pushes the cam away from the detent lug, and when the cam operating unit is released during the descending movement of the rope, the tension on the rope is directed toward the detent lug. Push the cam so that the rope is pressed by the cam on the braking protrusion, so as to realize the braking of the descending movement.
  • the descender-tether device has the problem that the user's hands cannot be released. When the user's hands are released from the rope, it does not have an automatic protection function, so it cannot be used in special occasions such as fire rescue.
  • the descender cannot realize the coexistence of the one-hand operation function and the automatic protection function, and it is difficult for the user to operate in special occasions such as fire rescue.
  • the present invention provides a single-hand control self-protection descender, which can realize the coexistence of automatic protection function and single-hand operation function when both hands are released from the rope, and can be effectively used in special occasions such as fire rescue and rescue. Improve rescue efficiency.
  • the end of the rope is not tied with a protective knot, the descender will not be separated from the rope, which improves the convenience of use and has good safety protection performance.
  • the technical scheme of the present invention is: a single-hand control self-protection descender, including a casing, on which are provided a lock hole, a limit friction part, an unlocking descending friction part and a self-locking tooth slot, the limiting friction part and the unlocking descending friction There is a rope entrance and exit for threading the rope between the parts.
  • the one-hand control self-protection descender also includes an auxiliary tooth slot.
  • the auxiliary tooth slot and the self-locking tooth slot are located on both sides of the lock hole, and the position of the auxiliary tooth slot is low. in self-locking teeth.
  • the limit friction part and the unlocking and descending friction part are opposite to each other, so that the rope and the descender are roughly parallel to the long axis direction of the lock hole, and the safety lock pulls down the rope along the long axis direction of the lock hole under the gravity of the descender.
  • Part of the rope is pressed into the self-locking tooth slot, the rope is squeezed by the self-locking tooth slot and the safety lock, and then stagnates to form a self-locking protection state.
  • Auxiliary gullets prevent the rope from locking up in the descender from switching to descending mode if the user is overweight.
  • the limit friction part and the unlocking and descending friction part are located at both ends of the top of the casing, and the angle formed between the highest point of the limit friction part and the midpoint of the lock hole and the long axis of the lock hole is within the range of ⁇ 15° .
  • the angle between the highest point of the limit friction part and the middle line of the lock hole determines the position of the limit friction part on the housing, and also determines the magnitude of the frictional force on the rope that the limit friction part and the unlocking and descending friction part can generate. It plays an auxiliary role in switching between the two states of self-locking and descending.
  • the friction force generated by the included angle range of ⁇ 15° is the most appropriate, which can not only produce a better self-locking effect, but also will not exceed the operating force of the person and cause the descender to be unable to operate.
  • the casing comprises a casing main body and a pair of plate bodies
  • the casing main body has a cavity formed by circumferentially closing the casing wall
  • the top and bottom of the casing main body are open
  • the inlet and outlet rope openings are located at the top of the casing main body
  • the plate body is fixed
  • the locking hole includes a first locking hole and a first locking hole.
  • a locking hole is respectively arranged on the two plates. .
  • the shell wall of the shell body on the side where the unlocking and descending friction part is located has a curved surface portion, the curved surface portion is recessed into the interior of the shell body, and the outermost edge of the shell body shell wall of the curved surface portion is lower than the highest point of the curved surface portion, and the unlocking descending The friction portion is located on the curved portion.
  • the rope After the rope exits from the rope entrance and exit, the rope is usually pulled downward. If the curved surface is not provided, the rope will bend and change direction at the top edge of the shell wall of the shell body, forming a sharp bending angle.
  • the pressure of the top edge of the wall on the inflection point of the rope is relatively large, which is easy to cut the rope fibers and reduce the life of the rope.
  • the rope can be guided softly, and the bending angle formed by the rope is relatively round and blunt.
  • the pressure of the shell wall of the shell body on the bending part of the rope is dispersed and uniform, and the rope fiber is not easy to be cut. , which can protect the life of the rope.
  • the housing body and the plate body are integrally formed. If the shell body and the plate body are combined in an assembly way, there are extremely high requirements on the assembly quality, otherwise it is easy to separate and disintegrate.
  • the integrated molding method not only ensures the structural strength, but also is easier to realize.
  • a plurality of ribs are fixedly connected between the two plate bodies, and the self-locking tooth slots and the auxiliary tooth slots are arranged on the ribs.
  • the rib is the carrier of the self-locking tooth slot and the auxiliary tooth slot, which is convenient for the construction of the self-locking tooth slot and the auxiliary tooth slot.
  • both ends of the rib are welded to the two plate bodies respectively.
  • the ribs are fixed by welding, the structure is simple, and the implementation is easy.
  • the corners of the casing are provided with rounded chamfers. This eliminates sharp points, resulting in a softer feel, preventing rope damage or discomfort during use.
  • the number of housings is one.
  • the descender made of a single shell is suitable for a single rope.
  • the housings are two and the two housings are connected in parallel.
  • the two shells are connected in parallel to form a double rope descender.
  • the present invention has the following beneficial effects: (1) The present invention can realize that the descender can be operated with one hand when using the descender to descend on the rope, and the descender can be automatically protected immediately when the hand releases the brake rope. In the past, descenders that can be operated with one hand have no protection function, and those with protection functions must be operated with both hands. The present invention can realize automatic protection while being operated with one hand, and is especially suitable for fire rescue and special forces operations. Stopped application. It is also suitable for novice rope players, and has a safer guarantee; (2) During the rope descent, the descender will automatically form a protection mode when the end of the rope is not knotted, so that the descender will run out of rope.
  • Fig. 1 is the structural representation of the present invention
  • Fig. 2 is the structural schematic diagram of the bottom viewing angle of the present invention.
  • Fig. 3 is the front view of the present invention.
  • FIG. 4 is a schematic structural diagram of the present invention when it is in a self-locking state
  • FIG. 5 is a schematic structural diagram of the present invention when it is in a descending state
  • Fig. 6 is the monomer structure schematic diagram of the present invention.
  • FIG. 7 is a schematic diagram of the double body structure of the present invention.
  • the one-hand control self-protection descender includes a shell 1, so it is a single-rope product with a single structure.
  • the housing 1 is provided with a lock hole 2, a limit friction part 3, an unlocking and descending friction part 4, a self-locking tooth slot 5 and an auxiliary tooth slot 6.
  • the locking part 3 and the unlocking descending friction part 4 are arranged around the lock hole 2
  • the self-locking tooth slot 5 and the unlocking descending friction part 4 are located on the left and right sides of the locking hole 2
  • the corners of the housing 1 are provided with smooth chamfers.
  • the rope entry and exit 7 consists of a rope entry area and a rope exit area.
  • the rope entry area and the rope exit area are not separated.
  • the side close to the limit friction part 3 is the rope entry area, and the side close to the unlocking and descending friction part 4 is the rope exit area.
  • the auxiliary tooth slot 6 and the self-locking tooth slot 5 are located on both sides of the lock hole, and the position of the auxiliary tooth slot 6 is lower than the self-locking tooth slot 5 .
  • the limit friction part 3 and the unlocking and descending friction part 4 are located at the two ends of the top of the casing 1, and the connection line between the highest point of the limit friction part 3 and the middle point of the lock hole 2 forms an angle of 0° with the long axis of the lock hole.
  • the casing 1 includes a casing main body 101 and a pair of plates 102 .
  • the casing main body 101 has a cavity formed by the circumferential closure of the casing wall.
  • the top and bottom of the casing main body 101 are open.
  • the plate body 102 is fixed on the bottom of the shell wall of the casing main body 101, and the two plate bodies 102 are parallel to each other and are respectively arranged on a pair of opposite surfaces of the casing wall of the casing main body 101.
  • the locking hole 2 includes a first locking hole and a first locking hole.
  • the lock holes, the first lock holes and the first lock holes are provided on the two plate bodies 102 in a one-to-one correspondence.
  • the shell wall of the shell body 101 on the side where the lower friction part 4 is located has a curved surface part, the curved surface part is recessed into the interior of the shell body main body 101, and the outermost edge of the shell wall of the shell body 101 of the curved surface part is lower than the highest point of the curved surface part, unlocking
  • the descending friction portion 4 is located on the curved surface portion.
  • the housing body 101 and the plate body 102 are integrally formed.
  • Three ribs 8 are fixedly connected between the two plate bodies 102 , the self-locking tooth slot 5 is arranged on the two bars 8 on the left side of the lock hole 2 , and the auxiliary tooth slot 6 is arranged on one rib 8 on the right side of the lock hole 2 . superior. Both ends of the rib 8 are welded to the two plate bodies 102 respectively.
  • Unlocking and descending friction part 4 basically has very little friction force on the rope in the descending state, but after the descender's hand leaves the rope braking end, the descender will rotate counterclockwise by about 20°, that is, the self-locking diagram shown in the self-locking diagram In the protection state, the unlocking and descending friction part 4 rubs against the rope, increasing the resistance of the descender sliding on the rope, and the safety lock 10 pulls down and squeezes the rope 9 into the self-locking tooth slot 5 under the gravity of the descender to form a self-locking protection state .
  • Figure 5 shows a schematic diagram of the descender in the descending state.
  • the descender wants to change from the protection state to the descending state, he only needs to pull down from the hand-held braking end of the rope, and the pulling force of the braking end makes the unlocking and descending friction part 4 be affected.
  • the descender rotates clockwise by about 20°.
  • the part of the squeezed rope from the safety lock 10 is released from the self-locking tooth slot 5 and rises to the highest point of the lock hole 2. At this time, there is no self-locking tooth slot. 5. Squeeze the braking force of the rope 9, and the upper end of the rope is also disengaged from the unlocking and descending friction part.
  • the rope 9 and the descender are all by hand except for the limit friction part 3, the safety lock 10, and the unlocking and descending friction part 4.
  • There is a small amount of friction resistance Grasp the force of the braking end of the rope 9 to control the speed, you can control it with one hand, and it will turn into a descending state.
  • the pulling force is relatively large at the beginning, which is also a consideration to protect the descender.
  • the braking force is the same as other descenders, and then you can descend at a relatively fast speed by maintaining a proper grip. If you release the rope 9 or let go of the rope 9 too quickly in the descending state, the descender will turn counterclockwise. Rotate about 20°, that is, the self-locking protection state indicated by the self-locking schematic diagram, to achieve automatic protection.
  • the limiting friction part 3 makes the rope 9 slightly bend and is under force.
  • the braking force of the braking end of the rope disappears, that is, the hand may be disconnected from the rope 9.
  • the reaction force of this force and the safety Under the combined action of the gravity of the descender on the lock 10, the descender rotates counterclockwise until the rope 9 becomes straight, and the descender returns to the self-locking protection state.
  • the descender In order to ensure the safety of the descender user and ensure that the rope 9 can be self-locked even when the diameter of the rope 9 is relatively small, since the descender is provided with an unlocking descending friction part 4 on the right side of the upper end position of the rope 9, the descender can be locked when the diameter of the rope is relatively small. It can also enter the self-locking state quickly.
  • the present invention can realize automatic protection while being operated with one hand, and is especially suitable for use scenarios such as fire rescue and special forces operations that require hands free and pause at any time; If there is no protection knot, it will automatically form a protection mode, so that the descender will not fall off and fall when the rope is exhausted. It has good safety protection performance while improving the convenience of use. is extremely user friendly.
  • connection line between the highest point of the limiting friction part 3 and the middle point of the lock hole 2 forms an included angle of 15° with the long axis of the lock hole.
  • Five ribs 8 are fixedly connected between the two plate bodies 102 , the self-locking tooth slot 5 is arranged on the three bars 8 on the left side of the lock hole 2 , and the auxiliary tooth slot 6 is arranged on the two ribs on the right side of the lock hole 2 .
  • Article 8 above. The rest are the same as in Example 1.
  • connection line between the highest point of the limit friction part 3 and the middle point of the lock hole 2 forms an included angle of -15° with the long axis of the lock hole.
  • the shell 1 is a double-body structure, and a double-rope descender is formed by connecting two shells 1 in parallel, and the two shells 1 are integrally formed. The rest are the same as in Example 1.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Lowering Means (AREA)

Abstract

Est divulgué un descendeur à protection automatique à une seule main, comprenant un logement. Le logement est pourvu d'un trou de blocage, d'une partie de frottement de limitation, d'une partie de frottement de descente de déblocage et d'une douille de dent autobloquante. Une ouverture d'entrée et de sortie de corde permettant d'enfiler une corde est située entre la partie de frottement de limitation et la partie de frottement de descente de déblocage. Le descendeur à protection automatique à une seule main comprend en outre une douille de dent auxiliaire. La douille de dent auxiliaire et la douille de dent autobloquante sont situées sur deux côtés d'un trou de blocage, respectivement, et la position de la douille de dent auxiliaire est plus basse que celle de la douille de dent autobloquante. La présente invention peut permettre de réaliser une opération à l'aide d'une seule main lorsque le descendeur est utilisé pour descendre sur une corde, et d'assurer une protection automatique immédiate par le descendeur lorsque la main libère une corde de frein. Selon un procédé de descente sur la corde, la présente invention permet d'entrer automatiquement dans un mode de protection lorsqu'une extrémité de queue de la corde n'a pas été attachée au moyen d'un nœud de protection, de telle sorte que, lorsqu'il ne reste plus de longueur de corde à un utilisateur descendant, la corde ne sort pas et ne provoque pas la chute de l'utilisateur, ce qui permet d'obtenir une protection automatique dans un scénario de descente à deux cordes.
PCT/CN2021/099944 2020-07-08 2021-06-15 Descendeur à protection automatique à une seule main WO2022007598A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202010649347 2020-07-08
CN202010649347.4 2020-07-08
CN202110590994.7A CN113384826A (zh) 2020-07-08 2021-05-28 单手控制自保护下降器
CN202110590994.7 2021-05-28

Publications (1)

Publication Number Publication Date
WO2022007598A1 true WO2022007598A1 (fr) 2022-01-13

Family

ID=77619408

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/099944 WO2022007598A1 (fr) 2020-07-08 2021-06-15 Descendeur à protection automatique à une seule main

Country Status (2)

Country Link
CN (1) CN113384826A (fr)
WO (1) WO2022007598A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101126434A (zh) * 2006-03-15 2008-02-20 齐德公司 用于绳的多功能系绳装置
CN201799022U (zh) * 2010-09-09 2011-04-20 北京工商大学 机械高楼逃生器
CN102470259A (zh) * 2009-07-15 2012-05-23 阿卢迪塞恩股份公司 安全装置
US20130126272A1 (en) * 2011-11-22 2013-05-23 Lars Remsen Belay device for climbers and related system and method
CN105854194A (zh) * 2015-02-11 2016-08-17 齐德公司 具有慢档减速和防恐慌阻挡的绳上的保护栓下降器装置
CN107789753A (zh) * 2017-11-16 2018-03-13 叶雄辉 一种自锁上升/下降器
US20190224503A1 (en) * 2015-04-07 2019-07-25 Harken, Incorporated High load descender with adaptive release linkage
CN209173254U (zh) * 2018-10-19 2019-07-30 叶雄辉 一种新型下降器
CN209333058U (zh) * 2018-12-28 2019-09-03 塞卡尔（北京）工业技术有限公司 一种绳索救援装置及系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2449134B (en) * 2007-08-13 2009-08-12 Checkmate Safety Llp Fall arrest block
CN105148418B (zh) * 2015-09-11 2019-01-08 北京宏景时代科技有限公司 恒速缓降器
CN105056417A (zh) * 2015-09-15 2015-11-18 福建省东山县辉永泰体育用品实业有限公司 一种抓绳保护器
CN109876315A (zh) * 2019-03-26 2019-06-14 厦门驰想户外用品有限公司 防恐慌绳索上升器/下降器设备
CN213077255U (zh) * 2020-07-08 2021-04-30 浙江唯海科技有限公司 一种新型单手控制自保护下降器

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101126434A (zh) * 2006-03-15 2008-02-20 齐德公司 用于绳的多功能系绳装置
CN102470259A (zh) * 2009-07-15 2012-05-23 阿卢迪塞恩股份公司 安全装置
CN201799022U (zh) * 2010-09-09 2011-04-20 北京工商大学 机械高楼逃生器
US20130126272A1 (en) * 2011-11-22 2013-05-23 Lars Remsen Belay device for climbers and related system and method
CN105854194A (zh) * 2015-02-11 2016-08-17 齐德公司 具有慢档减速和防恐慌阻挡的绳上的保护栓下降器装置
US20190224503A1 (en) * 2015-04-07 2019-07-25 Harken, Incorporated High load descender with adaptive release linkage
CN107789753A (zh) * 2017-11-16 2018-03-13 叶雄辉 一种自锁上升/下降器
CN209173254U (zh) * 2018-10-19 2019-07-30 叶雄辉 一种新型下降器
CN209333058U (zh) * 2018-12-28 2019-09-03 塞卡尔（北京）工业技术有限公司 一种绳索救援装置及系统

Also Published As

Publication number Publication date
CN113384826A (zh) 2021-09-14

Similar Documents

Publication Publication Date Title
JP5916811B2 (ja) 安全装置
JP3231513B2 (ja) ロープ式安全懸垂下降器
EP1259300B1 (fr) Descendeur a manette de blocage bidirectionnelle
US6561313B2 (en) Belay/rappel device for use in climbing activities and the like
US4019609A (en) Brake apparatus for use in rappelling
US20030051944A1 (en) Descent control device
US7500290B2 (en) Simple climber's multi-tool
USRE45678E1 (en) Auto-lock compact rope descent device
WO2022007598A1 (fr) Descendeur à protection automatique à une seule main
US3357520A (en) Strand brake for load lowering assembly
WO2009023833A9 (fr) Dispositif de descente et procédé d'utilisation
US20080011543A1 (en) Simple Climber's Multi-Tool
CN213077255U (zh) 一种新型单手控制自保护下降器
EP2641635A2 (fr) Dispositif de sauvegarde pour l'usage avec des lignes d'access
US1497534A (en) Fire escape
IT201800021406A1 (it) Dispositivo per frenare e/o bloccare una corda
US20240091568A1 (en) Rope descenders
RU210294U1 (ru) Страховочно-спусковое устройство для использования в туризме, альпинизме, промышленных работах и спасательных работах
RU2342176C2 (ru) Спасательное устройство для спуска людей
KR20240020838A (ko) 드래그 다운먼트
KR860002889Y1 (ko) 비상탈출기의 브레이킹 장치
CN2517451Y (zh) 自救逃生器
CN116372993A (zh) 一种多功能消防斧
WO2014086067A1 (fr) Procédé d'enroulement de câble de dispositif de suspension et dispositif de suspension utilisant ce dernier
GB2469306A (en) Braking device for use in rope climbing

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: 21837867

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 12.06.2023)

122 Ep: pct application non-entry in european phase

Ref document number: 21837867

Country of ref document: EP

Kind code of ref document: A1