CN2196151Y - Universal rotary knot - Google Patents
Universal rotary knot Download PDFInfo
- Publication number
- CN2196151Y CN2196151Y CN 94216735 CN94216735U CN2196151Y CN 2196151 Y CN2196151 Y CN 2196151Y CN 94216735 CN94216735 CN 94216735 CN 94216735 U CN94216735 U CN 94216735U CN 2196151 Y CN2196151 Y CN 2196151Y
- Authority
- CN
- China
- Prior art keywords
- rivet
- fastener
- rotary
- rotary body
- steel pipe
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 210000001503 joint Anatomy 0.000 claims description 7
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 abstract 1
- 239000013589 supplement Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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- Clamps And Clips (AREA)
Abstract
The utility model provides a fastener for a steel pipe scaffold used for construction work. The utility model uses an unparallel structure of rotating planes of two fastener bodies on the fastener. The fastener is composed of two rotating bodies and rivets, wherein, the rivet can rotate towards the axial direction of a hole of one rotating body for clamping a steel pipe. The utility model overcomes the shear stress and the bending stress of the rivet caused by mounting the fastener improperly, so that the supporting force and the life time of the fastener are improved. The utility model is easier to install and widens the serviceable range of the rotating fasteners, and the utility model is the supplement and the improvement of the existing rotating fastener.
Description
The utility model relates to a kind of building operations scaffold.The fastener that uses on the fastener type steel pipe scaffold particularly.
At present, fastener type steel pipe scaffold is widely used in the construction work.Have three kinds of forms, that is: right-angle coupler, rotary buckle, dock fastener and the fastener that is used for continuous fastening steel pipe is used at present.Wherein, rotary fastener uses at two bars to become at any angle to connect; In actual use, owing to install improper and aspects such as structure, and causing that the rotary buckle rivet is cut or bent, make rotary buckle initial failure, is only to allow the plane of rotation of two fastener bodies parallel owing to connect the rivet of two fastener bodies.Therefore, rotary buckle only is applicable to the parallel situation of two bar plane of rotations, and for the uneven situation of two bar plane of rotations, just can't connect.,, on the crosspoint of two hounds, just can't connect with after vertical rod is connected as: two counterbracing bars with existing rotary buckle.Particularly under the bigger situation of two vertical rods distance, the connection in the crosspoint of two hounds plays an important role to the stability of hound.Therefore, just need a kind of uneven fastener of plane of rotation that can be used for two fastener bodies, replenish existing rotary buckle.
The purpose of this utility model just provides a kind of uneven universal rotary fastener of plane of rotation of two fastener bodies.
For reaching this purpose, the utility model is that two fastener bodies that will have rotary buckle now are the structure of axle rotation with the rivet, changing two fastener bodies into can be the axle rotation with the rivet, rivet can clamp the structure of rotating on the axis direction in hole of steel pipe to one of them rotary body again, so just can realize the uneven purpose of plane of rotation of two rotary bodies.
In order to finish this inventive concept, the utility model must have following key element: the first is angled in order to guarantee that two rotary bodies rotate mutually with the plane of rotation of two rotary bodies, and the contact surface of two rotary bodies need be made the spherical male and fomale(M﹠F) that radius is SR.Wherein, the rotary body (1) of axis rotation that can clamp the hole of steel pipe to rotary body is protruding sphere, and rotary body (2) is the concave spherical surface (see figure 2).Its two be the inner surface in rotary body (1) hole that clamps steel pipe and rivet (2) connecting portion become radius be r(wherein, r ≠ 0, r can be ∞), wide is the groove of b, it is that the cambered surface of r ' (is seen Fig. 2, Fig. 3) that rivet (2) also has radius.Wherein, r '≤r must accomplish that also the condition of SR 〉=r ' can be rotated.It three is rivets (2) in order to clamp the axis direction rotation in the hole of steel pipe to rotary body (1), and do not interfere with clamped steel pipe, the head that nestles up the rivet (2) of rotary body (1) steel pipe that clamps has a symmetrical inclined-plane that becomes the α angle with the section of rivet.It four is rotary bodies (1) in order not interfere with the rivet (2) of the axis rotation that clamps steel pipe to rotary body (1), the hole that rotary body (1) is connected with rivet (2) need be inclined to axially being widened into the rivet hole axis of the hole of rotary body (1) clamping steel pipe ± and the slotted eye (see figure 2) driven the rivets in the α angle.
In actual use, can also run into the situation that four steel pipes dock in twos, the present utility model a kind of universal rotary to clasp.Be by two dock fasteners (butt joint rotary body (4) and butt joint rotary body (5)), and rivet (2) is formed.The architectural feature of its coupling part and universal type rotary buckle are identical, and (see Fig. 4, Fig. 2 Fig. 3), so just can realize that four steel pipes dock in twos, has also solved the connectivity problem on the not parallel plane that is connected the bar composition.
Because the utility model has adopted the uneven structure of Plane of rotation that can realize two fastener bodies, has solved between two vertical rods, two counterbracing bars are at the connectivity problem in crosspoint.In the connection of hound, with universal rotary fastener, can avoid being cut or be subjected to curved shear stress and the flexural stress that produces because of assembling the improper fastener rivet that causes, thereby the life-span of power and fastener is carried in the support that fastener is provided, more convenient installation, having widened the scope of application of rotary buckle, is replenishing and raising of existing rotary buckle.
The universal rotary fastener schematic diagram of Fig. 1
The universal rotary fastener A-A axial section of Fig. 2
The universal rotary fastener B-B radial section figure of Fig. 3
Fig. 4 is universal rotary to the clasp schematic diagram
(1) rotary body (2) rivet (3) rotary body (4) butt joint rotary body (5) butt joint rotary body
For universal rotary fastener and universal rotary to clasp, because the requirement of steel pipe and fastener structures is installed, the angle that forms two plane of rotations is little.Its preferably embodiment be: perpendicular to the rivet of rotary body holes for clamping axis, the anglec of rotation is on its axis direction: α≤± 10 °, just can satisfy installation requirement.In order to reach this purpose, the head of rivet (2) has the symmetrical inclined-plane with section α≤± 10 of rivet °, nestles up the inner surface that the rotary body (1) (or butt joint rotary body (4)) with protruding sphere clamps the hole of steel pipe.Rotary body (1) (or butt joint rotary body (4)) with protruding sphere has the slotted eye that axis with rivet is inclined to α≤± 10 ° on the axis direction of holes for clamping.
Claims (8)
1, a kind of universal rotary fastener, form by two rotary bodies and rivet, it is characterized in that: nestling up the head that protruding sphere rotary body clamps the rivet of steel pipe has with the section of rivet ± the symmetrical inclined-plane at α angle, it is the spherical male and fomale(M﹠F) of SR that the contact surface of two rotary bodies has radius, wherein the convex surface rotary body has one and clamps axially being widened into rivet axis of steel pipe to rotary body and be inclined to ± slotted eye of driving the rivets of α, it is the groove of r that this rotary body and rivet connecting portion have radius, and it is the garden cambered surface of r ' that rivet has radius.
2, by the described universal rotary fastener of claim 1, it is characterized in that: r '≤r.
3, by the described universal rotary fastener of claim 1, it is characterized in that: SR 〉=r '
4, by the described universal rotary fastener of claim 1, it is characterized in that: rivet clamps on the axis direction in hole of steel pipe anglec of rotation α≤± 10 ° to one of them rotary body.
5, by the described a kind of universal rotary fastener of claim 1, it is characterized in that: the head of rivet that nestles up the inner surface of protruding sphere rotary body holes for clamping has the symmetrical inclined-plane that becomes α≤± 10 ° with the section of rivet.
6, by the described a kind of universal rotary fastener of claim 1, it is characterized in that: the rotary body with protruding sphere has the slotted eye that axis with rivet is inclined to α≤± 10 ° on the axis direction of holes for clamping.
7, a kind of universal rotary to clasp, form by two butt joint fasteners, it is characterized in that: couple together by rivet.
8, described a kind of universal rotary to clasp by claim 7, it is characterized in that: the architectural feature of the rotating part that is connected by rivet is identical with the rotating part architectural feature of universal rotary fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94216735 CN2196151Y (en) | 1994-07-05 | 1994-07-05 | Universal rotary knot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94216735 CN2196151Y (en) | 1994-07-05 | 1994-07-05 | Universal rotary knot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2196151Y true CN2196151Y (en) | 1995-05-03 |
Family
ID=33832345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94216735 Expired - Fee Related CN2196151Y (en) | 1994-07-05 | 1994-07-05 | Universal rotary knot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2196151Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235084A (en) * | 2011-03-17 | 2011-11-09 | 张宪云 | Rapidly assembled/disassembled fastener and tool |
| CN105133733A (en) * | 2015-09-15 | 2015-12-09 | 北京送变电公司 | Fastener |
| CN105443519A (en) * | 2014-08-06 | 2016-03-30 | 许炎章 | Rotatable column fixing clamp |
-
1994
- 1994-07-05 CN CN 94216735 patent/CN2196151Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235084A (en) * | 2011-03-17 | 2011-11-09 | 张宪云 | Rapidly assembled/disassembled fastener and tool |
| CN102235084B (en) * | 2011-03-17 | 2012-10-10 | 张宪云 | Rapidly assembled/disassembled fastener |
| CN105443519A (en) * | 2014-08-06 | 2016-03-30 | 许炎章 | Rotatable column fixing clamp |
| CN105133733A (en) * | 2015-09-15 | 2015-12-09 | 北京送变电公司 | Fastener |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |