WO2023036106A1 - Boulon à expansion - Google Patents

Boulon à expansion Download PDF

Info

Publication number
WO2023036106A1
WO2023036106A1 PCT/CN2022/117179 CN2022117179W WO2023036106A1 WO 2023036106 A1 WO2023036106 A1 WO 2023036106A1 CN 2022117179 W CN2022117179 W CN 2022117179W WO 2023036106 A1 WO2023036106 A1 WO 2023036106A1
Authority
WO
WIPO (PCT)
Prior art keywords
bolt
sleeve
expansion
casing
nut
Prior art date
Application number
PCT/CN2022/117179
Other languages
English (en)
Chinese (zh)
Inventor
潘树江
潘云峰
Original Assignee
潘树江
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 潘树江 filed Critical 潘树江
Publication of WO2023036106A1 publication Critical patent/WO2023036106A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/02—Spanners; Wrenches with rigid jaws
    • B25B13/06—Spanners; Wrenches with rigid jaws of socket type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Definitions

  • the invention belongs to the field of fasteners, and in particular relates to an expansion bolt and a disassembly tool thereof.
  • Expansion bolts are a class of fasteners that are generally used to install objects at present.
  • the existing expansion bolts are sometimes easy to use and sometimes difficult to use. When it is difficult to use, it is mainly manifested in: 1. After the bolt is knocked into the drilled hole, if the drilling error is too large, when the nut is tightened, the whole bolt will rotate, and the nut cannot be tightened. Sometimes the casing does not move, the bolt body will rotate, and the nut cannot be tightened; 2. Sometimes after the nut is tightened and then a little force is tightened, the bolt body is loose, and the nut can no longer be tightened, so there is a certain feeling 3.
  • the nut can’t be tightened all the time, and the nut can’t be tightened even if the casing of the drilling hole is twisted and deformed; 4.
  • the expansion bolt will not be tightened shortly after the installation of the object that shakes, vibrates or has a large pull-off force. It will loosen or even come out, causing many troubles and potential safety hazards; 5. Due to the large swing range of the bolt tail, it is easy to damage the drill hole, and the installed objects are not easy to standardize and standardize; Removal also easily destroys the sleeve and cannot be reused.
  • the first purpose of the present invention is to provide a reusable expansion bolt with good stability, firm installation, and the second purpose is to provide a special disassembly tool for the expansion bolt.
  • an expansion bolt includes a bolt body, a sleeve, a washer and a nut
  • the bolt body includes a bolt head, a bolt body and a bolt tail of a threaded section
  • the sleeve is close to the
  • the head end of the bolt is provided with a cut groove
  • the head of the bolt is conical
  • the taper of the taper is ⁇ 1:2
  • the inner diameter of the sleeve is the same as the major diameter of the thread of the bolt tail, and they are in clearance fit with each other.
  • the head of the expansion bolt in the prior art is relatively short, that is, the taper of the head is much greater than 1:2, and the casing wall is thinner, and the inner diameter of the casing is much larger than the outer diameter of the bolt body and tail; the bolt head of the present invention adopts the "long head ”, that is, the taper of the bolt head ⁇ 1:2.
  • the inner diameter of the sleeve should be the same as the outer diameter of the bolt body and tail, so as to maximize the wall thickness of the sleeve.
  • the wall thickness is The wall thickness of the prior art casing is more than 2 to 3 times, and the beneficial effects it brings are: 1.
  • the "long head" structure of the bolt head allows the installer to flexibly use different bolt head slopes to act on the casing to form the expansion force on the drilling wall according to the error of the wall drilling of different materials. to tighten the bolts.
  • the maximum expansion of the casing is generally not used to fix the bolt. Generally speaking, if the material is soft or the hole is too large, the nut should be tightened more to increase the expansion.
  • the "long head" combined with the "thick wall” structure can also make the expansion bolt of the present invention "tighter and tighter". What you get is the expansion force generated by the expansion of the middle section of the bolt head slope and the front end of the casing. When the fixed object moves outward, it will drive the bolt body to move outward. Since the casing is fixed by the friction force with the wall of the borehole, the outward movement of the bolt body will make the bolt head further squeeze into the casing to increase the expansion. The expansion force at the position is automatically enhanced, the tightening degree is automatically improved, and the bolt becomes stable, which makes the expansion bolt have a "self-stabilizing" function.
  • the bolt head is provided with a rib, and the width of the rib near the end of the casing is smaller than the width of the slot.
  • the existing expansion bolts are difficult to take out after installation, and many casings are seriously damaged after being forcibly taken out, and can no longer be used.
  • the ribs provided by the invention are embedded in the cut grooves, and when the bolts are taken out, the casings can be driven to rotate together, and the bolts can be easily taken out. Due to the small deformation of the casing, the taken out expansion bolts can be reused, which reduces waste and saves social resources.
  • the width of the other end of the rib is greater than the width of the end close to the sleeve. This setting is beneficial for the embedding of the ribs into the slots and close fit with the slots.
  • the groove of the sleeve has a through groove extending to the other end of the sleeve.
  • the setting of the through groove can make the casing shrink due to the narrowing of the drill hole when the bolt is driven in, which increases its applicability.
  • it can clamp the bolt body by shrinking, which is conducive to tightening the nut and further reduces shaking.
  • it can rotate with the main body of the bolt when taking out the bolt, and the rotation will wipe out the debris of the solid screw layer of the drilled hole and store these debris, which is conducive to easy removal of the bolt;
  • another function of the through groove is that it can be removed from the drill during special installation.
  • the hole is wedged with a wedge to increase the tightness of the bolt.
  • the diameter of the bolt body is the same as the major thread diameter of the bolt tail.
  • the major diameter of the bolt tail thread of the existing bolts is generally larger than the diameter of the bolt body, and setting the same diameter of the bolt body and the bolt tail thread can reduce the inner diameter of the casing and further increase the wall thickness of the casing under the same strength of the bolt body.
  • the number of the ribs and the grooves are both 4, and their positions correspond to each other.
  • the outer diameter of the sleeve is in transition fit with the inner diameter of the borehole for installation. Due to the setting of the through groove, the casing can be reduced when the bolt is installed, which makes the outer diameter of the casing can be further enlarged, thereby further increasing the thickness of the casing wall, and improving its installation applicability and reliability.
  • a disassembly and assembly tool for expansion bolts including a tool body, a sleeve for loosening the nut and a jack for pushing into the sleeve are provided on the tool body.
  • a pipe, the outer diameter of the jacking pipe is less than or equal to the outer diameter of the casing, and the inner diameter is greater than or equal to the inner diameter of the casing.
  • the tool body is also provided with a nut to take out, the nut to take out is a blind hole, internally provided with threads, and the threads are matched with the threads of the bolt tail.
  • the tool body is in the shape of a cross, and there are two sleeves, jacking pipes, and nuts. Two ends of the cross-shaped tool body are provided with two sleeves, and the other two ends are provided with two sleeves. Two said jacking pipes are provided with two nuts in the center, and the sizes of the two sleeves, the two jacking pipes and the two nuts are different, forming two sets of dismounting tools of two specifications.
  • the expansion bolt of the present invention can be installed and disassembled conveniently and effectively by using the assembly and disassembly tool.
  • Fig. 1 is the structural representation of a kind of expansion bolt of the present invention
  • Fig. 2 is the schematic diagram of the sectional view of Fig. 1;
  • Fig. 3 is a schematic diagram of the bolt main body
  • Fig. 4 is a partial schematic view of the bolt head in Fig. 3;
  • Fig. 5 is a schematic view of A-A in Fig. 3;
  • Figure 6 is a schematic diagram of the casing
  • Fig. 7 is a schematic diagram of a top view in Fig. 6;
  • Fig. 8 is a schematic diagram of the right view in Fig. 6;
  • Fig. 9 is a structural schematic diagram of a dismounting tool for an expansion bolt of the present invention.
  • Fig. 10 is a schematic diagram of the left view in Fig. 9;
  • Fig. 11 is a schematic diagram of a B-B direction view in Fig. 10;
  • the expansion bolt shown in Figures 1 to 8 includes a bolt body 1, a sleeve 2, a washer 3 and a nut 4.
  • the bolt body 1 includes a bolt head 11, a bolt body 12 and a bolt tail 13 of a threaded section, and the bolt head 11 is a cone.
  • the taper of the taper 1:5
  • the bolt head 11 is provided with four ribs 111
  • the width b of the end of the rib 111 near the sleeve 2 is smaller than the width a of the slot 21, and the width c of the other end of the rib 111 greater than the width b near the end of the casing 2
  • the diameter of the bolt body 12 is the same as the thread diameter of the bolt tail 13
  • the casing 2 is provided with four slots 21 near the end of the bolt head 11, one of which extends to the other end of the casing 2
  • the inner diameter of the sleeve 2 is the same as the major diameter of the screw thread of the bolt tail 13, and they are in clearance fit with each other.
  • the outer diameter of the sleeve 2 is transitionally matched with the inner diameter of the bore hole for installation.
  • One or more "thin-walled" tubes are stacked together to achieve its "thick-walled".
  • the dismounting tool of the expansion bolt shown in Figure 9 to Figure 11 includes a cross-shaped tool body 5, and the two ends of the tool body 5 are provided with a sleeve 51 for the elastic nut 4, and the sleeve 51 is an external hexagonal or ring wrench , the other two ends are provided with a jacking pipe 52 for jacking into the casing 2, the outer diameter of the jacking pipe 52 is slightly smaller than the outer diameter of the casing 2, and the inner diameter is slightly larger than the inner diameter of the casing 2, and two back-to-back taking Nut 53, get nut 53 to be a blind hole, set screw thread inside, this thread matches with the screw thread of bolt tail 13, wherein one group of sleeve 51, jack pipe 52, get the specification of nut 53 to be 12, the other The size of the group is 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dowels (AREA)
  • Connection Of Plates (AREA)
  • Earth Drilling (AREA)

Abstract

Boulon à expansion, comprenant un corps principal de boulon (1), une gaine (2), une rondelle (3) et un écrou (4). Le corps principal de boulon comprend une tête de boulon (11), un corps de boulon (12), et une queue de boulon fileté (13) ; des fentes (21) sont prévues à l'extrémité de la gaine, à proximité de la tête de boulon ; la tête de boulon est conique, et la conicité est inférieure ou égale à 1 : 2 ; le diamètre interne de la gaine est le même que le diamètre principal des filets de la queue de boulon, et la gaine et la queue de boulon sont ajustés avec jeu. Le boulon à expansion présente une bonne stabilité, permet une installation ferme et est réutilisable.
PCT/CN2022/117179 2021-09-08 2022-09-06 Boulon à expansion WO2023036106A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202122161074.1 2021-09-08
CN202122161074.1U CN216343256U (zh) 2021-09-08 2021-09-08 一种膨胀螺栓

Publications (1)

Publication Number Publication Date
WO2023036106A1 true WO2023036106A1 (fr) 2023-03-16

Family

ID=81170442

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/CN2022/117179 WO2023036106A1 (fr) 2021-09-08 2022-09-06 Boulon à expansion
PCT/CN2022/117180 WO2023036107A1 (fr) 2021-09-08 2022-09-06 Outil d'assemblage et de démontage de boulon d'expansion

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/117180 WO2023036107A1 (fr) 2021-09-08 2022-09-06 Outil d'assemblage et de démontage de boulon d'expansion

Country Status (2)

Country Link
CN (2) CN216913719U (fr)
WO (2) WO2023036106A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN216913719U (zh) * 2021-09-08 2022-07-08 潘树江 一种膨胀螺栓的拆装工具

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10219848A (ja) * 1997-02-12 1998-08-18 Meikin Go エクスパンションボルト
US20070258787A1 (en) * 2006-05-03 2007-11-08 Fu-Chuan Hsu Method of forming an expansion mounting sleeve and the product thereof
CN201078377Y (zh) * 2007-08-03 2008-06-25 邓习伟 一种平头膨胀螺栓
CN104712630A (zh) * 2015-03-02 2015-06-17 青岛林川工程技术咨询有限公司 一种可拆除的膨胀螺栓及其使用方法
CN204476975U (zh) * 2014-12-11 2015-07-15 海盐三马标准件有限公司 一种膨胀螺栓
CN205478749U (zh) * 2016-01-14 2016-08-17 中国一冶集团有限公司 一种新型高强可拆卸膨胀螺栓
CN206816641U (zh) * 2017-06-22 2017-12-29 吉林建筑大学 可拆卸膨胀螺栓
CN209781397U (zh) * 2018-11-23 2019-12-13 宁波凯荣船用机械有限公司 一种开槽液压膨胀螺栓
CN209800477U (zh) * 2019-03-28 2019-12-17 高攀 一种新型膨胀螺栓
CN209990751U (zh) * 2019-04-30 2020-01-24 中国一冶集团有限公司 一种新型膨胀螺栓
CN113700713A (zh) * 2021-09-08 2021-11-26 潘树江 一种膨胀螺栓及其拆装工具
CN216343256U (zh) * 2021-09-08 2022-04-19 潘树江 一种膨胀螺栓

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6435064B1 (en) * 2000-12-26 2002-08-20 Francis J. Persechino Frost proof sill cock extraction tool
CN203650364U (zh) * 2013-11-22 2014-06-18 松阳县轻源机械设备有限公司 一种多功能扳手
CN204371857U (zh) * 2014-12-04 2015-06-03 宿宝龙 一种易拆卸型膨胀螺栓的专用拆卸工具
CN204700840U (zh) * 2015-06-09 2015-10-14 中建三局智能技术有限公司 一种与通丝螺杆配合使用的膨胀螺栓的安装工具
CN205703981U (zh) * 2016-06-02 2016-11-23 苏州市职业大学 一种膨胀螺栓拆卸工具
CN206140404U (zh) * 2016-09-09 2017-05-03 中国核工业二三建设有限公司 膨胀螺栓安装用工具及装置
US20200039050A1 (en) * 2018-07-31 2020-02-06 Wang-Kuan Lin Device for Installing Expansion Bolts
CN209380642U (zh) * 2018-12-12 2019-09-13 广东电网有限责任公司 一种膨胀螺栓拆卸装置
CN111360753B (zh) * 2020-03-25 2024-03-29 上海建工一建集团有限公司 膨胀螺栓拆除装置及其应用施工方法

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10219848A (ja) * 1997-02-12 1998-08-18 Meikin Go エクスパンションボルト
US20070258787A1 (en) * 2006-05-03 2007-11-08 Fu-Chuan Hsu Method of forming an expansion mounting sleeve and the product thereof
CN201078377Y (zh) * 2007-08-03 2008-06-25 邓习伟 一种平头膨胀螺栓
CN204476975U (zh) * 2014-12-11 2015-07-15 海盐三马标准件有限公司 一种膨胀螺栓
CN104712630A (zh) * 2015-03-02 2015-06-17 青岛林川工程技术咨询有限公司 一种可拆除的膨胀螺栓及其使用方法
CN205478749U (zh) * 2016-01-14 2016-08-17 中国一冶集团有限公司 一种新型高强可拆卸膨胀螺栓
CN206816641U (zh) * 2017-06-22 2017-12-29 吉林建筑大学 可拆卸膨胀螺栓
CN209781397U (zh) * 2018-11-23 2019-12-13 宁波凯荣船用机械有限公司 一种开槽液压膨胀螺栓
CN209800477U (zh) * 2019-03-28 2019-12-17 高攀 一种新型膨胀螺栓
CN209990751U (zh) * 2019-04-30 2020-01-24 中国一冶集团有限公司 一种新型膨胀螺栓
CN113700713A (zh) * 2021-09-08 2021-11-26 潘树江 一种膨胀螺栓及其拆装工具
CN216343256U (zh) * 2021-09-08 2022-04-19 潘树江 一种膨胀螺栓

Also Published As

Publication number Publication date
WO2023036107A1 (fr) 2023-03-16
CN216913719U (zh) 2022-07-08
CN216343256U (zh) 2022-04-19

Similar Documents

Publication Publication Date Title
WO2023036106A1 (fr) Boulon à expansion
CN211202560U (zh) 一种膨胀防脱螺栓
GB2230314A (en) Threaded connector locking device
CN201916622U (zh) 一种管接头
CN211174927U (zh) 一种可回收使用的膨胀螺栓
CN113700713A (zh) 一种膨胀螺栓及其拆装工具
CN109826854B (zh) 一种建筑膨胀螺套的锚固及拆除方法
CN202024004U (zh) 一种前卡套及其带有前卡套的管接头
CN201496356U (zh) 自切底锚栓
CN212297194U (zh) 防震锚栓
CN212360423U (zh) 一种结构改良的自攻膨胀螺丝
CN213039653U (zh) 一种锥形外凸防盗螺母
CN219994108U (zh) 一种高压单头螺栓
CN101660337B (zh) 自切底锚栓
CN215257235U (zh) 一种新型膨胀螺丝组件
JP2001065533A (ja) 緩み防止ボルト
CN217713247U (zh) 一种双向扩张的膨胀管
CN213655384U (zh) 可回收膨胀螺栓
CN214238021U (zh) 一种断裂螺栓取出套筒
US11788569B2 (en) Anti-pullout and low-resistance screw
CN212337835U (zh) 一种自攻膨胀螺丝
CN213117022U (zh) 一种自锁式膨胀螺栓
CN215333848U (zh) 一种膨胀锚栓
CN212337840U (zh) 一种方便拆卸的膨胀螺丝
CN216044863U (zh) 一种防转动膨胀螺栓

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: 22866569

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 12/07/2024)