CN206694372U - A kind of setscrew - Google Patents

A kind of setscrew Download PDF

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Publication number
CN206694372U
CN206694372U CN201721112489.7U CN201721112489U CN206694372U CN 206694372 U CN206694372 U CN 206694372U CN 201721112489 U CN201721112489 U CN 201721112489U CN 206694372 U CN206694372 U CN 206694372U
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CN
China
Prior art keywords
lag
expansion oplate
push rod
setscrew
rod portion
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CN201721112489.7U
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Chinese (zh)
Inventor
邓晓明
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Individual
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Individual
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Priority to CN201721112489.7U priority Critical patent/CN206694372U/en
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Publication of CN206694372U publication Critical patent/CN206694372U/en
Priority to PCT/CN2017/114424 priority patent/WO2019041616A1/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04Dowels 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
    • F16B13/08Dowels 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 with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation

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

Abstract

The utility model discloses a kind of setscrew, including expansion oplate, travel(l)ing rest lead screw and fixed head part, the travel(l)ing rest lead screw include U cradle portions and threaded shank, formed with the first U-lag in the U cradle portions;The fixed head part includes push rod portion and fixed support portion, and the fixed support portion forms the second U-lag;The U-lag of fixed head part second is enclosed on first U-lag through the first U-lag of travel(l)ing rest lead screw make it that the push rod portion is located in first U-lag screw parts in the second U-lag;Flat pad is cased with below the threaded shank, nut is installed below flat pad.The utility model can haul lead screw and pull outward when load is heavier, and relatively, the push rod portion is then pushed up inwards, and expansion oplate can only be supportted increasing, difficult for drop-off so as to more and more firm.

Description

A kind of setscrew
Technical field
It the utility model is related to screw field, and in particular to a kind of setscrew.
Background technology
Setscrew typically uses metallic expansive screw, and the fixation of setscrew is to promote expansion to produce using wedge-shaped gradient Raw friction bond stress, reaches fixed effect.The fastening on the materials such as cement, brick such as guard rail, canopy, air-conditioning is generally used for, It may be simultaneously used in the loose matrix or materials for wall such as hollow brick, porous brick, honeycomb brick.
Although setscrew belongs to the traditional technique of comparison, technology everyway comparative maturity, it still has one Fixed deficiency:It fixes very unreliable, if load has a significant shock, or load is overweight, for a long time using expanding screw Silk will come off, and particularly apply and be easier above-mentioned phenomenon occur in walls such as hollow brick, porous brick, honeycomb bricks.
Therefore, need further to improve existing setscrew, screw is difficult for drop-off when making load overweight.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of simple in construction, load is heavier, Setscrew difficult for drop-off.
To reach above-mentioned purpose, what the utility model was realized in:A kind of setscrew, including expansion oplate, activity branch Frame lead screw and fixed head part, the travel(l)ing rest lead screw include U cradle portions and threaded shank, in the U cradle portions formed with First U-lag;The fixed head part includes push rod portion and fixed support portion, and the fixed support portion forms the second U-lag;
The U-lag of fixed head part second is enclosed on first U-lag through the first U-lag of travel(l)ing rest lead screw So that the screw parts, in the second U-lag, the push rod portion is located in first U-lag;
The expansion oplate is arranged on the upper end of first U-lag;Flat pad, planar pad are cased with below the threaded shank Nut is installed below piece;
During tightening nut, the threaded shank drives U cradle portions and expansion oplate to be integrally pulled outwardly, the relative push rod portion Pushed up to the expansion oplate direction, when expansion oplate is encountered in the push rod portion, the expansion oplate is slowly supportted by the push rod portion Open.
Preferably, the U cradle portions of the upper end of the travel(l)ing rest lead screw and the threaded shank of lower end are formed in one.
Preferably, the push rod portion of the fixed head part and fixed support portion are formed in one.
Preferably, the expansion oplate is connected by lock pin with U cradle portions.
Preferably, the expansion oplate is the tapering rhombic plate in a pair of two, and two rhombic plates are parallel overlapping when closing up, during opening The expansion oplate is slowly transitioned into " one " word shape by X-shaped shape.
Preferably, the expansion oplate is provided at both ends with barb.
Preferably, flexible meson is set between the flat pad and nut.
The beneficial effects of the utility model:During the utility model tightening nut, the threaded shank drives U cradle portions and swollen Swollen plate is integrally pulled outwardly, and the relative push rod portion is pushed up to the expansion oplate direction, when expansion oplate is encountered in the push rod portion When, the expansion oplate is slowly strutted by the push rod portion, so when load is heavier, can haul lead screw and pull outward, relatively, The push rod portion is then pushed up inwards, and expansion oplate can only be supportted increasing, difficult for drop-off so as to more and more firm, while this reality It is extensive with new application, it is not only used in hardware materials for wall and is also highly suitable for use in hollow brick, porous brick, the pine such as honeycomb brick In scattered matrix or wall.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of setscrew of the utility model;
Fig. 2 is a kind of explosive view of setscrew of the utility model;
Fig. 3 is a kind of crack status architecture schematic diagram of setscrew of the utility model;
Fig. 4 is a kind of half-open position structural representation of setscrew of the utility model;
Fig. 5 is a kind of full-gear structural representation of setscrew of the utility model;
Fig. 6 is the utility model travel(l)ing rest lead screw structural representation;
Fig. 7 is that the utility model fixes head part structural representation.
Label corresponding to each part in accompanying drawing:Expansion oplate 1, travel(l)ing rest lead screw 2, U cradle portions 21, threaded shank 22, the One U-lag 23, fixed head part 3, push rod portion 31, fixed support portion 32, the second U-lag 33, flat pad 4, nut 5, lock pin 6, Barb 7, elastic meson 8.
Embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
As shown in figs. 1-7, a kind of setscrew, including expansion oplate 1, travel(l)ing rest lead screw 2 and fixed head part 3, it is described Travel(l)ing rest lead screw 2 includes U cradle portions 21 and threaded shank 22, and the threaded shank 22 of U cradle portions 21 and lower end is formed in one, this In be integrally formed using punching press or injection one-shot forming, reduce production cost.Formed with the first U in the U cradle portions 21 Shape groove 23;The fixed head part 3 includes push rod portion 31 and fixed support portion 32, and push rod portion 31 and fixed support portion 32 are integrated into Type, push rod portion 31 and fixed support portion 32 are integrally formed also using punching press or injection one-shot forming, again reduce production Cost.The fixed support portion 32 forms the second U-lag 33;Second U-lag of fixed head part 33 passes through travel(l)ing rest screw First U-lag 23 of bar, which is enclosed on first U-lag 23, causes the screw parts in the second U-lag 33, the push rod Portion is located in first U-lag 23;
The expansion oplate 1 is arranged on the upper end of first U-lag 23, and the expansion oplate 1 passes through lock pin 6 and U cradle portions 11 connections, when the expansion oplate 1 closes up, the part dew of expansion oplate 1 is exposed at first U-lag beyond first U-lag 23 Outside 23, specifically, 1/3rd of the length of expansion oplate 1 is located at outside the first U-lag 23.
The lower section of threaded shank 22 is cased with flat pad 4, and the lower section of flat pad 4 is provided with nut 5.During tightening nut 5, The threaded shank 22 drives U cradle portions 11 and expansion oplate 1 is overall is pulled outwardly, and relatively, the push rod portion 31 is to the expansion The direction of plate 1 is pushed up, and when the push rod 31 encounters expansion oplate 1, the expansion oplate 1 is slowly strutted by the push rod portion 31.
The expansion oplate 1 is the tapering rhombic plate in a pair of two, and two rhombic plates are parallel overlapping when closing up, described swollen during opening Swollen plate 1 is slowly transitioned into " one " word shape by X-shaped shape, and the utility model is applied loose in hollow brick, porous brick, honeycomb brick etc. Matrix or materials for wall when, " one " word shape can be supportted.
The more king bolt that the expansion oplate 1 supports just is fixed more firm, and the expansion oplate 1 is provided at both ends with barb 7, institute The overall stability and fastness of setscrew can further be increased by stating barb 7.In addition in the flat pad 4 and nut 5 Between flexible meson 8 is set, the elastic meson 8 prevents 5 kinds of pine effects of nut.
The announcement and teaching of book according to the above description, the utility model those skilled in the art can also be to above-mentioned realities The mode of applying is changed and changed.Therefore, the utility model is not limited to embodiment disclosed and described above, right Some modifications and changes of utility model should also be as falling into scope of the claims of the present utility model.In addition, although Some specific terms have been used in this specification, but these terms are merely for convenience of description, not to the utility model structure Into any restrictions.

Claims (7)

  1. A kind of 1. setscrew, it is characterised in that including expansion oplate, travel(l)ing rest lead screw and fixed head part, the activity branch Frame lead screw includes U cradle portions and threaded shank, formed with the first U-lag in the U cradle portions;The fixed head part includes push rod Portion and fixed support portion, the fixed support portion form the second U-lag;
    The U-lag of fixed head part second is enclosed on first U-lag through the first U-lag of travel(l)ing rest lead screw to be caused In in the second U-lag, the push rod portion is located in first U-lag screw parts;
    The expansion oplate is arranged on the upper end of first U-lag;Flat pad is cased with below the threaded shank, flat pad Lower section is provided with nut;
    During tightening nut, the threaded shank drives U cradle portions and expansion oplate to be integrally pulled outwardly, relatively, the push rod portion to The expansion oplate direction top, when expansion oplate is encountered in the push rod portion, the expansion oplate is slowly strutted by the push rod portion.
  2. A kind of 2. setscrew as claimed in claim 1, it is characterised in that the U branch of the upper end of the travel(l)ing rest lead screw The threaded shank of frame portion and lower end is formed in one.
  3. 3. a kind of setscrew as claimed in claim 1, it is characterised in that the push rod portion of the fixed head part and fixed support Portion is formed in one.
  4. 4. a kind of setscrew as claimed in claim 1, it is characterised in that the expansion oplate is connected by lock pin and U cradle portions Connect.
  5. 5. a kind of setscrew as claimed in claim 4, it is characterised in that the expansion oplate is the tapering rhombus in a pair of two Plate, two rhombic plates are parallel overlapping when closing up, and the expansion oplate is slowly transitioned into " one " word shape by X-shaped shape during opening.
  6. 6. a kind of setscrew as claimed in claim 5, it is characterised in that the expansion oplate is provided at both ends with barb.
  7. 7. a kind of setscrew as claimed in claim 5, it is characterised in that be provided with bullet between the flat pad and nut Property meson.
CN201721112489.7U 2017-08-31 2017-08-31 A kind of setscrew Active CN206694372U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201721112489.7U CN206694372U (en) 2017-08-31 2017-08-31 A kind of setscrew
PCT/CN2017/114424 WO2019041616A1 (en) 2017-08-31 2017-12-04 Expansion screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721112489.7U CN206694372U (en) 2017-08-31 2017-08-31 A kind of setscrew

Publications (1)

Publication Number Publication Date
CN206694372U true CN206694372U (en) 2017-12-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721112489.7U Active CN206694372U (en) 2017-08-31 2017-08-31 A kind of setscrew

Country Status (2)

Country Link
CN (1) CN206694372U (en)
WO (1) WO2019041616A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019041616A1 (en) * 2017-08-31 2019-03-07 邓晓明 Expansion screw

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2032663U (en) * 1988-02-13 1989-02-15 高凤良 Hanging bolt
US20090103999A1 (en) * 2007-10-23 2009-04-23 Dominick Joseph Fucito Toggle bolt assembly
JP5442426B2 (en) * 2009-12-25 2014-03-12 トヨタホーム株式会社 Fixed hardware
CN202768570U (en) * 2011-08-02 2013-03-06 裴春光 Shearing type expansion bolt
CN205977947U (en) * 2016-06-02 2017-02-22 祁欣妤 Monolithic formula anchor device
CN106884836A (en) * 2017-04-17 2017-06-23 四川建筑职业技术学院 It is a kind of to expand formula expansion bolt certainly
CN206694372U (en) * 2017-08-31 2017-12-01 邓晓明 A kind of setscrew

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019041616A1 (en) * 2017-08-31 2019-03-07 邓晓明 Expansion screw

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