WO2022104759A1 - Multi-pivot expansion bolt - Google Patents

Multi-pivot expansion bolt Download PDF

Info

Publication number
WO2022104759A1
WO2022104759A1 PCT/CN2020/130697 CN2020130697W WO2022104759A1 WO 2022104759 A1 WO2022104759 A1 WO 2022104759A1 CN 2020130697 W CN2020130697 W CN 2020130697W WO 2022104759 A1 WO2022104759 A1 WO 2022104759A1
Authority
WO
WIPO (PCT)
Prior art keywords
stud
sleeve
expansion bolt
sliding grooves
casing
Prior art date
Application number
PCT/CN2020/130697
Other languages
French (fr)
Chinese (zh)
Inventor
党建民
Original Assignee
徐州欧百瑞智能设备有限公司
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 徐州欧百瑞智能设备有限公司 filed Critical 徐州欧百瑞智能设备有限公司
Priority to PCT/CN2020/130697 priority Critical patent/WO2022104759A1/en
Publication of WO2022104759A1 publication Critical patent/WO2022104759A1/en

Links

Classifications

    • 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
    • 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
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object

Definitions

  • the invention relates to an expansion bolt with multiple fulcrums, which can form multi-point engagement with the side wall of a drilled hole, and belongs to the technical field of hardware.
  • the expansion bolt has a combination of casing, screw and nut with an expansion joint.
  • the casing is expanded along the expansion joint by pulling and pulling the screw, and the expanded arc surface is attached to the inner wall of the drill hole.
  • the casing has poor fitting tightness, cannot form a close fit with the inner wall of the drilled hole, has poor fixing effect, and cannot be disassembled.
  • a multi-pivot expansion bolt of the present invention provides an expansion bolt that supports the installation hole through the structure of the expansion bolt casing. bolt.
  • a multi-pivot expansion bolt of the present invention is realized as follows: a multi-pivot expansion bolt of the present invention is composed of a sliding groove, a sleeve, a stud, a nut and a pressure block, the sleeve is sleeved on the stud, and the nut is screwed.
  • the sleeve On the stud, the sleeve is provided with a set of sliding grooves, the sliding grooves are spiral grooves, the sliding grooves are distributed along the circumference of the sleeve, the number of the sliding grooves is at least 4, and a plurality of pressing blocks are placed On the stud, and in one-to-one correspondence with the sliding groove, the pressing block is pressed against the outer surface of the casing.
  • Fig. 1 is a three-dimensional structural view of a multi-fulcrum expansion bolt of the present invention.
  • a sliding groove (1) a sliding groove (2), a sleeve (2), a stud (3), a nut (4), and a pressing block (5).
  • the multi-pivot expansion bolt of the present invention is realized as follows: when in use, in the initial state, the pressure block (5) on the stud (3) is located at the mouth of the sliding groove (1), and the inlet of the sleeve (2) To clamp, put the stud (3) into the drilled hole, so that the casing (2) is located in the drilled hole, then rotate the nut (4), pull the stud (3) out of the drilled hole, the stud (3) The pressure block (5) on the ) slides along the sliding groove (1), and the end of the sleeve (2) expands and everts along the sliding groove (1), and is embedded into the drilled hole to form a fixation.

Abstract

A multi-pivot expansion bolt, which is composed of sliding grooves (1), a sleeve (2), a stud (3), a nut (4) and pressing blocks (5). The sleeve (2) is arranged on the stud (3) in a sleeved manner. The nut (4) is arranged on the stud (3) in a threaded connection manner. The sleeve (2) is provided with a group of sliding grooves (1). The sliding grooves (1) are spiral grooves and are distributed in the circumferential direction of the sleeve (2). The multiple pressing blocks (5) are arranged on the stud (3) and correspond to the sliding grooves (1) on a one-to-one basis. The pressing blocks (5) are in press fit with an outer side face of the sleeve (2). The sleeve (2) of the expansion bolt turns and expands by means of sliding, and multi-pivot fixing is achieved, thereby achieving the aim of stable supporting and fixing.

Description

一种多支点膨胀螺栓A multi-pivot expansion bolt 技术领域technical field
本发明一种多支点膨胀螺栓涉及一种能够和钻孔侧壁形成多点卡合的膨胀螺栓，属于五金技术领域。The invention relates to an expansion bolt with multiple fulcrums, which can form multi-point engagement with the side wall of a drilled hole, and belongs to the technical field of hardware.
背景技术Background technique
目前，膨胀螺栓有开有涨缝的套管、螺钉、螺母组合，通过螺钉收拉使得套管沿着涨缝扩张，通过扩张后的圆弧面和钻孔内壁贴合，由于钻孔内壁不平整，套管卡合贴合紧密度差，不能够和钻孔内壁形成紧密贴合，固定效果差，且不能够进行拆卸。At present, the expansion bolt has a combination of casing, screw and nut with an expansion joint. The casing is expanded along the expansion joint by pulling and pulling the screw, and the expanded arc surface is attached to the inner wall of the drill hole. Flat, the casing has poor fitting tightness, cannot form a close fit with the inner wall of the drilled hole, has poor fixing effect, and cannot be disassembled.
技术解决方案technical solutions
为了改善上述情况，本发明一种多支点膨胀螺栓提供了一种通过膨胀螺栓套管的结构对安装孔进行抵撑，拆除时，对套管进行限位后进行拆除，方便安装和拆除的膨胀螺栓。In order to improve the above situation, a multi-pivot expansion bolt of the present invention provides an expansion bolt that supports the installation hole through the structure of the expansion bolt casing. bolt.
本发明一种多支点膨胀螺栓是这样实现的：本发明一种多支点膨胀螺栓由滑动槽，套管，螺柱，螺母和压块组成，套管套置于螺柱上，螺母螺接置于螺柱上，所述套管上设置有一组滑动槽，所述滑动槽为螺旋槽，所述滑动槽沿套管周向分布，所述滑动槽数量至少为4个，多个压块置于螺柱上，且和滑动槽一一对应，压块和套管外侧面压合。A multi-pivot expansion bolt of the present invention is realized as follows: a multi-pivot expansion bolt of the present invention is composed of a sliding groove, a sleeve, a stud, a nut and a pressure block, the sleeve is sleeved on the stud, and the nut is screwed. On the stud, the sleeve is provided with a set of sliding grooves, the sliding grooves are spiral grooves, the sliding grooves are distributed along the circumference of the sleeve, the number of the sliding grooves is at least 4, and a plurality of pressing blocks are placed On the stud, and in one-to-one correspondence with the sliding groove, the pressing block is pressed against the outer surface of the casing.
有益效果beneficial effect
一、 通过滑动块对套管进行收缩，方便膨胀螺栓的拆卸。1. Shrink the casing through the sliding block to facilitate the disassembly of the expansion bolt.
二、   多放心扩张支撑，嵌入钻孔内壁。2. Be assured to expand the support and embed it into the inner wall of the drilled hole.
三、  拆除后不会破坏膨胀螺栓的结构，能够重复利用，节省成本。3. The structure of the expansion bolt will not be damaged after dismantling, and it can be reused to save costs.
附图说明Description of drawings
图1本发明一种多支点膨胀螺栓的立体结构图。Fig. 1 is a three-dimensional structural view of a multi-fulcrum expansion bolt of the present invention.
附图中其中为：滑动槽（1），套管（2），螺柱（3），螺母（4），压块（5）。Among the drawings are: a sliding groove (1), a sleeve (2), a stud (3), a nut (4), and a pressing block (5).
本发明的实施方式Embodiments of the present invention
本发明一种多支点膨胀螺栓是这样实现的：使用时，初始状态下，螺柱（3）上的压块（5）位于滑动槽（1）口部位置，将套管（2）进口部进行收夹，将螺柱（3）放入钻孔内，使得套管（2）位于钻孔内，然后旋转螺母（4），将螺柱（3）向钻孔外出拉，螺柱（3）上的压块（5）沿着滑动槽（1）滑动，套管（2）末端的沿着滑动槽（1）扩展外翻，并嵌入至钻孔内，形成固定，当需要拆卸时，将螺柱（3）向内敲打，使得压块（5）沿着滑动槽（1）反向滑动，将翻转的套管（2）内收复原，方便取出，达到多点嵌入支撑便于拆卸的目的。The multi-pivot expansion bolt of the present invention is realized as follows: when in use, in the initial state, the pressure block (5) on the stud (3) is located at the mouth of the sliding groove (1), and the inlet of the sleeve (2) To clamp, put the stud (3) into the drilled hole, so that the casing (2) is located in the drilled hole, then rotate the nut (4), pull the stud (3) out of the drilled hole, the stud (3) The pressure block (5) on the ) slides along the sliding groove (1), and the end of the sleeve (2) expands and everts along the sliding groove (1), and is embedded into the drilled hole to form a fixation. When it needs to be disassembled, Knock the stud (3) inwards, so that the pressing block (5) slides in the opposite direction along the sliding groove (1), and retract the overturned sleeve (2), which is easy to take out, and achieves multi-point embedded support for easy disassembly. Purpose.

Claims (1)

  1. 一种多支点膨胀螺栓由滑动槽，套管，螺柱，螺母和压块组成，套管套置于螺柱上，螺母螺接置于螺柱上，所述套管上设置有一组滑动槽，所述滑动槽为螺旋槽，所述滑动槽沿套管周向分布，所述滑动槽数量至少为4个，多个压块置于螺柱上，且和滑动槽一一对应，压块和套管外侧面压合。A multi-fulcrum expansion bolt is composed of a sliding groove, a casing, a stud, a nut and a pressing block. The casing is sleeved on the stud, the nut is screwed on the stud, and a set of sliding grooves are arranged on the casing. , the sliding grooves are spiral grooves, the sliding grooves are distributed along the circumferential direction of the casing, the number of the sliding grooves is at least 4, and a plurality of pressing blocks are placed on the studs and correspond to the sliding grooves one by one. Press the outer side of the casing.
      
      
PCT/CN2020/130697 2020-11-21 2020-11-21 Multi-pivot expansion bolt WO2022104759A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/130697 WO2022104759A1 (en) 2020-11-21 2020-11-21 Multi-pivot expansion bolt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/130697 WO2022104759A1 (en) 2020-11-21 2020-11-21 Multi-pivot expansion bolt

Publications (1)

Publication Number Publication Date
WO2022104759A1 true WO2022104759A1 (en) 2022-05-27

Family

ID=81708310

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/130697 WO2022104759A1 (en) 2020-11-21 2020-11-21 Multi-pivot expansion bolt

Country Status (1)

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WO (1) WO2022104759A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05157106A (en) * 1991-05-17 1993-06-22 Hilti Ag Expanding anchor with low frictional coated layer
CN1156793A (en) * 1995-11-08 1997-08-13 阿图尔-费希尔股份公司费希尔厂 Metal expansible anchor
CN2296423Y (en) * 1997-01-30 1998-11-04 叶连群 Expansion bolt
CN101191513A (en) * 2006-11-24 2008-06-04 徐发煌 Protuberant folding expansion bolt
CN201763737U (en) * 2010-09-04 2011-03-16 江苏振亚特种螺钉有限公司 Biconvex expansion bolt
CN102278343A (en) * 2011-07-14 2011-12-14 覃国君 Direct-entering expansion bolt
CN206320134U (en) * 2016-12-19 2017-07-11 沈湖 A kind of heavy expansion bolt of three-chip type

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05157106A (en) * 1991-05-17 1993-06-22 Hilti Ag Expanding anchor with low frictional coated layer
CN1156793A (en) * 1995-11-08 1997-08-13 阿图尔-费希尔股份公司费希尔厂 Metal expansible anchor
CN2296423Y (en) * 1997-01-30 1998-11-04 叶连群 Expansion bolt
CN101191513A (en) * 2006-11-24 2008-06-04 徐发煌 Protuberant folding expansion bolt
CN201763737U (en) * 2010-09-04 2011-03-16 江苏振亚特种螺钉有限公司 Biconvex expansion bolt
CN102278343A (en) * 2011-07-14 2011-12-14 覃国君 Direct-entering expansion bolt
CN206320134U (en) * 2016-12-19 2017-07-11 沈湖 A kind of heavy expansion bolt of three-chip type

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