CN110873105A - Installation method of standard sleeve self-locking one-way bolt - Google Patents
Installation method of standard sleeve self-locking one-way bolt Download PDFInfo
- Publication number
- CN110873105A CN110873105A CN201911143431.2A CN201911143431A CN110873105A CN 110873105 A CN110873105 A CN 110873105A CN 201911143431 A CN201911143431 A CN 201911143431A CN 110873105 A CN110873105 A CN 110873105A
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- Prior art keywords
- sleeve
- bolt
- fastener
- steel structural
- wrench
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000009434 installation Methods 0.000 title abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 54
- 239000010959 steel Substances 0.000 claims abstract description 54
- 238000005452 bending Methods 0.000 claims abstract description 3
- 230000003313 weakening effect Effects 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- F16B13/063—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 by the use of an expander
- F16B13/066—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 by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
Abstract
The invention relates to a method for installing a standardized sleeve self-locking one-way bolt, which comprises the following steps: (1) sequentially penetrating a bolt through connecting holes in a first steel structural member and a second steel structural member, enabling the gasket to be abutted against one side, far away from the second steel structural member, of the first steel structural member, enabling the front end of the first sleeve to penetrate through the connecting holes, and enabling the tail end of the first sleeve to extend out of the connecting holes; (2) clamping the washer with a first wrench and fixing the first wrench to define a rotational degree of freedom of the washer; (3) applying torque to the head of the bolt using a second wrench to cause linear movement of the fastener relative to the shank of the bolt to cause outward bending of the expansion tabs; (4) and sequentially detaching the second wrench and the first wrench. The invention avoids weakening the opening of the connecting section when completing the bolt connection of a closed section or a component with one end not easy to touch on the premise of not reducing the installation speed and the node strength.
Description
Technical Field
The invention relates to the technical field of steel structural member connection, in particular to a method for installing a self-locking one-way bolt of a standardized sleeve.
Background
When the existing steel structural members connected by bolts are connected, the bolts are usually inserted into the bolt holes from one side, and the nuts are screwed from the other side, and the connection mode is suitable for the connection of open steel structural members, and is not suitable for the situation that one steel structural member is in a closed structure, such as the connection of square steel pipes.
When the existing square steel pipe is connected by adopting a bolt, a hole is usually formed in the pipe wall of the square steel pipe so as to be convenient to operate, but the connection mode easily reduces the rigidity and the strength of the square steel pipe and reduces the service life of the square steel pipe.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problem of providing the installation method of the standardized sleeve self-locking type one-way bolt, and under the condition that one steel structural member is of a closed structure, the bolt connection of the two steel structural members can be realized only by operating on one side of an open steel structural member.
In order to solve the technical problems, the invention provides an installation method of a standardized sleeve self-locking type one-way bolt, wherein a gasket, an expansion sleeve and a fastener are sequentially sleeved on the outer periphery of a bolt rod of the bolt, the gasket is arranged close to a bolt head of the bolt, and an internal thread matched with the bolt is arranged on the inner periphery of the fastener; the expansion sleeve comprises a first sleeve and a second sleeve, the first sleeve is arranged close to the fastener, a plurality of strip-shaped openings are uniformly distributed on the circumference of the first sleeve, the strip-shaped openings penetrate through one end, close to the fastener, of the first sleeve, the strip-shaped openings divide one side, close to the fastener, of the first sleeve into a plurality of expansion pieces, and a first conical surface is arranged on the inner periphery of one end, close to the fastener, of the first sleeve; the periphery of one end, close to the first sleeve, of the fastener is provided with a second conical surface, a plurality of convex ribs are uniformly distributed on the periphery of the second conical surface, the convex ribs are arranged along the axis direction of the fastener, one end, close to the first sleeve, of the fastener is abutted against the first conical surface, and the bolt head, the gasket, the expansion sleeve and the fastener are sequentially and tightly abutted against one another; when the bolt is used for connecting the first steel structural part and the second steel structural part, the method comprises the following steps: (1) the bolt sequentially penetrates through connecting holes in the first steel structural member and the second steel structural member, so that the gasket is abutted against one side, away from the second steel structural member, of the first steel structural member, the front end of the first sleeve penetrates through the connecting holes, and the tail end of the first sleeve extends out of the connecting holes; (2) clamping the washer with a first wrench and fixing the first wrench to define a rotational degree of freedom of the washer; (3) applying torque to the head of the bolt using a second wrench to cause linear movement of the fastener relative to the shank of the bolt to cause outward bending of the expansion tabs; (4) and sequentially detaching the second wrench and the first wrench.
By adopting the installation method of the standardized sleeve self-locking type one-way bolt, when two steel structural members are connected, the bolt is inserted into a connecting hole of the steel structural member to be connected, then the first wrench is used for fixing the washer to prevent the washer from rotating, the second wrench is used for rotating the bolt head to drive the bolt head and the bolt rod to rotate, because the bolt head, the washer, the expansion sleeve and the fastener are sequentially and tightly abutted, the expansion sleeve and the fastener cannot rotate under the action of friction force, in addition, the periphery of the fastener is provided with the convex edge, the first sleeve is provided with the strip-shaped opening, the rotation freedom degree of the fastener relative to the first sleeve can be limited by the matching of the strip-shaped opening and the convex edge, the bolt of the fastener is further prevented from rotating along with the bolt rod, and because the fastener is in threaded matching with the bolt rod, the fastener makes linear motion towards the direction of the bolt, the expansion sheet is pushed to bend outwards, the peripheral size of the bent expansion sheet is larger than the diameter of a connecting hole of the steel structural member to be connected, so that the expansion sheet cannot pass through the connecting hole, and the connection of the steel structural member is realized; in the connection process, an operator only needs to operate one side of the steel structural member, and the steel structural member is suitable for connecting closed steel structural members such as square steel pipes and the like with open structural members; in addition, the expansion sleeve adopts a split design, the length of the first sleeve can be designed to be a fixed value during production and can be processed as a standard part, and the length of the expansion sleeve can be adjusted through the second sleeve which is convenient to process, so that the expansion sleeve is suitable for connection of steel structural parts with different thicknesses, and the production cost can be reduced. Therefore, on the premise of not reducing the installation speed and the node strength, the invention avoids weakening the opening of the connecting section when the traditional method completes the bolt connection of the closed section or the member with one end not easy to touch, and has the advantages of convenient and quick installation, adaptation to the requirement of the connection of the closed section member or the member with one end not easy to touch, guarantee of the integrity of the connecting section and the like.
Preferably, all be provided with the rubber pad between packing ring and second sleeve and first sleeve to play the shock insulation effect, simultaneously, the setting of rubber pad can increase frictional force, prevents that second sleeve and first sleeve from rotating for the packing ring.
Preferably, the washer is symmetrically provided with two planes at the periphery thereof to serve as clamping surfaces of the first wrench.
Preferably, the first sleeve is sleeved around the periphery of the threaded section of the bolt shank to ensure that the fastener can be moved to a position where it bends the expansion tabs to a desired angle.
Preferably, the length of the strip-shaped opening is 80% -90% of the length of the second sleeve, so that the expansion sheet can be smoothly bent.
Preferably, the sum of the lengths of the first sleeve, the second sleeve and the rubber gasket between the first sleeve and the second sleeve is 35-65% of the length of the bolt.
Preferably, the length of the first sleeve extending out of the connecting hole is 30% -60% of the total length of the first sleeve, so that the expansion sheet can clamp the second steel structural member after being pushed open and bent by the fastener, and meanwhile, the instability caused by the fact that the part of the first sleeve extending out of the connecting hole is too long can be avoided. .
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural diagram of a standardized sleeve self-locking type one-way bolt according to an embodiment of the invention;
FIG. 2 is a cross-sectional view of a standardized sleeve self-locking one-way bolt of an embodiment of the present invention;
FIG. 3 is a schematic view of a first sleeve according to an embodiment of the present invention;
FIG. 4 is a right side view of FIG. 3;
FIG. 5 is a schematic structural view of a fastener according to an embodiment of the invention;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
FIG. 7 is a schematic view of the installation of the standardized sleeve self-locking type one-way bolt according to the embodiment of the invention;
fig. 8 is a schematic diagram of the standardized sleeve self-locking type one-way bolt according to the embodiment of the invention after being installed.
Reference numerals:
1-a bolt; 2-a gasket; 3-a fastener; 4-a first sleeve; 5-a second sleeve; 6-rubber pad; 7-a first steel structural member; 8-a second steel structural member; 9-a first wrench; 10 a second wrench;
31-a second tapered surface; 32-ribs; 41-strip-shaped openings; 42-an intumescent sheet; 43-first tapered surface.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, 2, 3, 4, 5 and 6, the embodiment discloses a standardized sleeve self-locking type one-way bolt, which comprises a bolt 1, wherein a steel washer 2, an expansion sleeve and a fastener 3 are sequentially sleeved on the outer periphery of a bolt rod of the bolt 1, the washer 2 is arranged close to the bolt head of the bolt 1, two planes are symmetrically arranged on the outer periphery of the washer 2, and an internal thread matched with the bolt 1 is arranged on the inner periphery of the fastener 3.
The expansion sleeve comprises a first sleeve 4 and a second sleeve 5, the first sleeve 4 is arranged close to the fastener 3, and the first sleeve 4 is sleeved on the periphery of the threaded section of the bolt rod; four strip-shaped openings 41 are uniformly distributed on the circumference of the first sleeve 4, the strip-shaped openings 41 penetrate through one end, close to the fastener 3, of the first sleeve 4, the strip-shaped openings 41 divide one side, close to the fastener 3, of the first sleeve 4 into four expansion pieces 42, and a first conical surface 43 is arranged on the inner periphery of one end, close to the fastener 3, of the first sleeve 4; in this embodiment, rubber pads 6 are provided between the gasket 2 and the second sleeve 5 and between the second sleeve 5 and the first sleeve 4.
A second conical surface 31 is arranged on the periphery of one end, close to the first sleeve 4, of the fastener 3, a plurality of protruding ribs 32 are uniformly distributed on the periphery of the second conical surface 31, the protruding ribs 32 are arranged along the axial direction of the fastener 3, and one end, close to the first sleeve 4, of the fastener 3 abuts against the first conical surface 43; in this embodiment, the bolt head, the washer 2, the rubber pad 6 adjacent to the bolt head, the second sleeve 5, the other rubber pad 6, the first sleeve 4, and the fastener 3 are sequentially and tightly abutted.
Specifically, the sum of the lengths of the first sleeve 4, the second sleeve 5 and the rubber pad 6 between the first sleeve and the second sleeve is 35-65% of the length of the bolt 1.
Specifically, the length of the strip-shaped opening 41 in the present embodiment is 80% -90% of the length of the second sleeve 4 to ensure that the expansion piece 42 can be smoothly bent.
In practice, the first sleeve 4 has a complex structure and can be designed as a standard part with a certain length so as to facilitate batch processing, and the second sleeve 5 has a simple structure so as to facilitate processing and can be used as an adjusting part for adjusting the length of the expansion sleeve, so that the processing cost of the expansion sleeve is reduced.
Referring to fig. 7 and 8, when the bolt 1 is used to connect the first steel structural member 7 and the second steel structural member 8, the following steps are included: (1) the bolt 1 sequentially penetrates through connecting holes in a first steel structural member 7 and a second steel structural member 8, so that the gasket 2 is abutted against one side, away from the second steel structural member 8, of the first steel structural member 7, the front end of the first sleeve 4 penetrates through the connecting holes, the tail end of the first sleeve 4 extends out of the connecting holes, and the length of the first sleeve 4 extending out of the connecting holes is 30% -60% of the total length of the first sleeve 4; (2) clamping the washer using the first wrench 9 and manually or mechanically fixing the first wrench 9 to define the rotational degree of freedom of the washer 2; (3) applying torque to the bolt head of the bolt 1 by using the second wrench 10 to enable the fastener 3 to do linear motion relative to the bolt rod, so that the expansion sheet 42 is bent outwards, the peripheral size of the bent expansion sheet 42 is larger than the diameter of the connecting hole, the expansion sheet 42 cannot pass through the connecting hole, and the first steel structural member 7 and the second steel structural member 8 are connected; (4) and the second wrench 10 and the first wrench 9 are sequentially disassembled to finish installation.
In the step (1), since the washer 2 is fixed by a wrench, the expansion sleeve can be effectively prevented from rotating under the action of friction force, the protruding rib 32 is arranged on the periphery of the fastener 3, and the first sleeve 4 is provided with the strip-shaped opening 41, the matching between the strip-shaped opening 41 and the protruding rib 32 can limit the degree of freedom of rotation of the fastener 3 relative to the first sleeve 4, so that the fastener 3 is prevented from rotating along with the bolt rod, the fastener 3 can only move linearly in the direction of the bolt head, and the expansion sheet 42 is pushed to bend outwards.
In the installation, the operation workman only needs to operate in the one side that second steel structural component 8 was kept away from to first steel structural component 7, is applicable to the condition that second steel structural component 8 is closed steel structural components such as square steel pipe.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not cause the essence of the corresponding technical solution to depart from the scope of the technical solution of the embodiments of the present invention, and are intended to be covered by the claims and the specification of the present invention.
Claims (7)
1. The mounting method of the standardized sleeve self-locking type one-way bolt is characterized by comprising the following steps of:
the outer periphery of a bolt rod of the bolt is sequentially sleeved with a gasket, an expansion sleeve and a fastener, the gasket is arranged close to the bolt head of the bolt, and the inner periphery of the fastener is provided with an internal thread matched with the bolt;
the expansion sleeve comprises a first sleeve and a second sleeve, the first sleeve is arranged close to the fastener, a plurality of strip-shaped openings are uniformly distributed on the circumference of the first sleeve, the strip-shaped openings penetrate through one end, close to the fastener, of the first sleeve, the strip-shaped openings divide one side, close to the fastener, of the first sleeve into a plurality of expansion pieces, and a first conical surface is arranged on the inner periphery of one end, close to the fastener, of the first sleeve;
the periphery of one end, close to the first sleeve, of the fastener is provided with a second conical surface, a plurality of convex ribs are uniformly distributed on the periphery of the second conical surface, the convex ribs are arranged along the axis direction of the fastener, one end, close to the first sleeve, of the fastener is abutted against the first conical surface, and the bolt head, the gasket, the expansion sleeve and the fastener are sequentially and tightly abutted against one another;
when the bolt is used for connecting the first steel structural part and the second steel structural part, the method comprises the following steps:
(1) the bolt sequentially penetrates through connecting holes in the first steel structural member and the second steel structural member, so that the gasket is abutted against one side, away from the second steel structural member, of the first steel structural member, the front end of the first sleeve penetrates through the connecting holes, and the tail end of the first sleeve extends out of the connecting holes;
(2) clamping the washer with a first wrench and fixing the first wrench to define a rotational degree of freedom of the washer;
(3) applying torque to the head of the bolt using a second wrench to cause linear movement of the fastener relative to the shank of the bolt to cause outward bending of the expansion tabs;
(4) and sequentially detaching the second wrench and the first wrench.
2. The method for installing the standardized sleeve self-locking type one-way bolt according to claim 1, wherein the method comprises the following steps:
rubber pads are arranged between the gasket and the second sleeve and between the second sleeve and the first sleeve.
3. The method for installing the standardized sleeve self-locking type one-way bolt according to claim 1, wherein the method comprises the following steps:
the periphery of the gasket is symmetrically provided with two planes.
4. The method for installing the standardized sleeve self-locking type one-way bolt according to claim 1, wherein the method comprises the following steps:
the first sleeve is sleeved on the periphery of the threaded section of the bolt rod.
5. The method for installing the standardized sleeve self-locking type one-way bolt according to claim 1, wherein the method comprises the following steps:
the length of the strip-shaped opening is 80% -90% of the length of the second sleeve.
6. The method for installing the standardized sleeve self-locking type one-way bolt according to claim 2, wherein the method comprises the following steps:
the sum of the lengths of the first sleeve, the second sleeve and the rubber gasket between the first sleeve and the second sleeve is 35-65% of the length of the bolt.
7. The method for installing a standardized sleeve self-locking type one-way bolt according to claim 1, wherein the method comprises the following steps:
the length of the first sleeve extending out of the connecting hole is 30% -60% of the total length of the first sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911143431.2A CN110873105A (en) | 2019-11-20 | 2019-11-20 | Installation method of standard sleeve self-locking one-way bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911143431.2A CN110873105A (en) | 2019-11-20 | 2019-11-20 | Installation method of standard sleeve self-locking one-way bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110873105A true CN110873105A (en) | 2020-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911143431.2A Pending CN110873105A (en) | 2019-11-20 | 2019-11-20 | Installation method of standard sleeve self-locking one-way bolt |
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| Country | Link |
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| CN (1) | CN110873105A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324774A (en) * | 2020-10-27 | 2021-02-05 | 沈阳理工大学 | Expansion bolt for building wall |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5725341A (en) * | 1997-01-08 | 1998-03-10 | Hofmeister; Oskar | Self fusing fastener |
| CN2326776Y (en) * | 1998-03-14 | 1999-06-30 | 韩玉印 | Expansion screw-bolt |
| CN2375805Y (en) * | 1999-02-06 | 2000-04-26 | 张钟云 | Adjustable expansion bolt |
| CN2429676Y (en) * | 2000-07-27 | 2001-05-09 | 蔡雨江 | Expanding screw bolts |
| CN201925289U (en) * | 2010-11-25 | 2011-08-10 | 杭州依赛通信有限公司 | Novel connecting device between equipment |
| CN203248492U (en) * | 2013-03-14 | 2013-10-23 | 同济大学 | Resin injection one-way bolt |
| CN103511420A (en) * | 2012-11-02 | 2014-01-15 | 同济大学 | Single-edge fastening bolt |
| CN207921062U (en) * | 2018-01-24 | 2018-09-28 | 东莞理工学院 | A kind of upset bolt |
| CN109322889A (en) * | 2018-12-17 | 2019-02-12 | 嘉兴钰丰汽车零部件有限公司 | A kind of Anti-extrusion expansion bolt |
-
2019
- 2019-11-20 CN CN201911143431.2A patent/CN110873105A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5725341A (en) * | 1997-01-08 | 1998-03-10 | Hofmeister; Oskar | Self fusing fastener |
| CN2326776Y (en) * | 1998-03-14 | 1999-06-30 | 韩玉印 | Expansion screw-bolt |
| CN2375805Y (en) * | 1999-02-06 | 2000-04-26 | 张钟云 | Adjustable expansion bolt |
| CN2429676Y (en) * | 2000-07-27 | 2001-05-09 | 蔡雨江 | Expanding screw bolts |
| CN201925289U (en) * | 2010-11-25 | 2011-08-10 | 杭州依赛通信有限公司 | Novel connecting device between equipment |
| CN103511420A (en) * | 2012-11-02 | 2014-01-15 | 同济大学 | Single-edge fastening bolt |
| CN203248492U (en) * | 2013-03-14 | 2013-10-23 | 同济大学 | Resin injection one-way bolt |
| CN207921062U (en) * | 2018-01-24 | 2018-09-28 | 东莞理工学院 | A kind of upset bolt |
| CN109322889A (en) * | 2018-12-17 | 2019-02-12 | 嘉兴钰丰汽车零部件有限公司 | A kind of Anti-extrusion expansion bolt |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324774A (en) * | 2020-10-27 | 2021-02-05 | 沈阳理工大学 | Expansion bolt for building wall |
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Application publication date: 20200310 |