CN204919305U - Foldable dropproof device - Google Patents
Foldable dropproof device Download PDFInfo
- Publication number
- CN204919305U CN204919305U CN201520677619.6U CN201520677619U CN204919305U CN 204919305 U CN204919305 U CN 204919305U CN 201520677619 U CN201520677619 U CN 201520677619U CN 204919305 U CN204919305 U CN 204919305U
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- China
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- long
- chovr body
- short
- switching body
- overline bridge
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Abstract
The utility model discloses a foldable dropproof device, including installing support otic placode on the support, installing at on bridge overline bridge otic placode, the long switching body and the short switching body in sky, short switching body one end and support otic placode are articulated, the other end and long switching body one end are articulated, the long switching body other end is articulated with the overline bridge otic placode, just the internal portion of long switching is provided with and is used for holding short switching body space. The utility model discloses a cubic switching effect makes the short switching body and support otic placode take place the relative rotation, and the long switching body and overline bridge otic placode take place the relative rotation, and then makes the long switching body and short switching physical stamina enough realize foldingly or the extensional motion, short switching body length degree is less than the length of the long switching body, in the long switching body of short switching body insertible, realizes overline bridge back and forth movement in narrow and small space, and is folding or tensile between the long switching body and the short switching body simultaneously, has restricted the maximum displacement the when overline bridge takes place relative motion with the support.
Description
Technical field
The utility model relates to a kind of overline bridge, particularly a kind of collapsible fall-proofing device.
Background technology
In overline bridge structure design, the connected mode of overline bridge and agent structure adopts Weak link to construct usually, and namely overline bridge and agent structure can relative motions, to adapt to the displacement back and forth when vibrations occur overline bridge in agent structure, prevents overline bridge from falling.Especially in earthquake prone areas, this design can protect the overline bridge in agent structure to avoid falling, and prevents from causing great accident to occur.Causing a serious accident to ensure overline bridge can not fall from the bearing of agent structure under big bang effect, usually needing to arrange fall-proofing device to limit the maximum displacement of overline bridge.In engineering practice, because of overline bridge main couple, to erect space between web member and agent structure upper bracket very narrow and small, needs to design corresponding fall-proofing device, realize the dropproof design of overline bridge.At present, fall-proofing device conventional is both at home and abroad drag-line, pull bar etc., but because the end structure size of these devices is comparatively large, and be not suitable for small space, moving back and forth of overline bridge cannot be realized in unusual narrow space, also cannot limit maximum displacement during overline bridge motion.
Utility model content
Technical problem to be solved in the utility model is to provide and a kind ofly in narrow space, realizes moving back and forth of overline bridge, and the collapsible fall-proofing device of restriction overline bridge maximum displacement.
To achieve these goals, the utility model adopts following technical scheme to be achieved: a kind of collapsible fall-proofing device, comprise the support lug be arranged on bearing, the overline bridge otic placode be arranged on overline bridge, long chovr body and short chovr body, described short chovr body one end and support lug is hinged, the other end and long chovr body one end hinged, the described long chovr body other end and overline bridge otic placode hinged, and described long chovr body inside is provided with for holding described short chovr body space.
Further, also comprise upper pin, middle bearing pin and lower bearing pin, described short chovr body one end is by lower bearing pin and support lug is hinged, the other end by middle bearing pin and long chovr body one end hinged, the described long chovr body other end by upper pin and overline bridge otic placode hinged.
Further, described lower bearing pin, middle bearing pin, upper pin include bar portion and be positioned at one end, bar portion and with the integrated head in described bar portion, described head diameter is greater than bar portion diameter, and the other end in described bar portion is provided with fixture.
Again further, be provided with pad between the head of described lower bearing pin and short chovr body, described lower bearing pin is provided with pad between fixture and short chovr body.
Again further, be provided with pad between the head of described middle bearing pin and long chovr body, described middle bearing pin is provided with pad between fixture and long chovr body.
Again further, be provided with pad between the head of described upper pin and long chovr body, described upper pin is provided with pad between fixture and long chovr body.
Further, described short chovr body is two pieces of short keysets be arranged in parallel, and described support lug is clamped between two pieces of short keysets.
Further, described two pieces of short keysets and the hinged one end of long chovr body link together.
Further, described long chovr body is two pieces of long keysets be arranged in parallel, and described overline bridge otic placode is clamped between two block length keysets.
Relative to prior art, the utility model is by three switching effects, short chovr body and support lug are relatively rotated, long chovr body and overline bridge otic placode relatively rotate, and then enable long chovr body and short chovr body realize folding or extensional motion, described short chovr body length is less than the length of long chovr body, short chovr body can embed in long chovr body, realize overline bridge to move back and forth in small space, simultaneously, between long chovr body and short chovr body, folding or stretching, limits maximum displacement when overline bridge and bearing generation relative motion.
Accompanying drawing explanation
Fig. 1 is the structural representation of collapsible fall-proofing device in the utility model one embodiment;
Fig. 2 is the exploded perspective view of collapsible fall-proofing device in the utility model one embodiment.
Shown in figure: 1, support lug; 2, overline bridge otic placode; 3, upper pin; 4, middle bearing pin; 5, lower bearing pin; 6, long chovr body; 7, short chovr body; 8, head; 9, fixture; 10, pad.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail:
As depicted in figs. 1 and 2, collapsible fall-proofing device of the present utility model, comprise the support lug 1 be arranged on bearing, the overline bridge otic placode 2 be arranged on overline bridge, long chovr body 6 and short chovr body 7, described short chovr body 7 one end and support lug 1 is hinged, the other end and long chovr body 6 one end hinged, described long chovr body 6 other end and overline bridge otic placode 2 hinged, and described long chovr body 6 inside is provided with for holding described short chovr body 7 space.
Collapsible fall-proofing device of the present utility model is hinged by overline bridge otic placode 2 and long chovr body 6, three switching effects that long chovr body 6 is hinged with short chovr body 7 and short chovr body 7 is hinged with support lug 1, short chovr body 7 and support lug 1 are relatively rotated, long chovr body 6 and overline bridge otic placode 2 relatively rotate, and then make long chovr body 6 and short chovr body 7 can realize folding or extensional motion, described short chovr body 7 length is less than the length of long chovr body 6, and short chovr body 7 can embed in long chovr body 6, realize overline bridge to move back and forth in small space, simultaneously, folding or stretching between long chovr body 6 and short chovr body 7, limit maximum displacement when overline bridge and bearing generation relative motion.
Preferably, this collapsible fall-proofing device also comprises upper pin 3, middle bearing pin 4 and lower bearing pin 5, described short chovr body 7 one end is hinged by lower bearing pin 5 and support lug 1, the other end passes through middle bearing pin 4 and long chovr body 6 one end is hinged, and described long chovr body 6 other end is hinged by upper pin 3 and overline bridge otic placode 2.Described lower bearing pin 5, middle bearing pin 4, upper pin 3 include bar portion and are positioned at one end, bar portion and head 8 integrated with described bar portion, and described head 8 diameter is greater than bar portion diameter, and the other end in described bar portion is provided with fixture 9.
Adopt this technology, support lug 1 and short chovr body 7 are fixed by head 8 and fixture 9 by lower bearing pin 5, make short chovr body 7 stable rotation.Short chovr body 7 and long chovr body 6 are fixed by head 8 and fixture 9 by middle bearing pin 4, make short chovr body 7 and long chovr body 6 stable rotation.Overline bridge otic placode 2 and long chovr body 6 are fixed by head 8 and fixture 9 by upper pin 3, make long chovr body 6 stable rotation.
Preferably, be provided with pad 10 between the head 8 of described lower bearing pin 5 and short chovr body 7, described lower bearing pin 5 is provided with pad 10 between fixture 9 and short chovr body 7.
Preferably, be provided with pad 10 between the head 8 of described middle bearing pin 4 and long chovr body 6, described middle bearing pin 4 is provided with pad 10 between fixture 9 and long chovr body 6.
Preferably, be provided with pad 10 between the head 8 of described upper pin 3 and long chovr body 6, described upper pin 3 is provided with pad 10 between fixture 9 and long chovr body 6.
Adopt above-mentioned technology, the frictional force produced when reducing to rotate, extends the application life of this collapsible fall-proofing device.
Preferably, described short chovr body 7 is two pieces of short keysets be arranged in parallel, and described support lug 1 is clamped between two pieces of short keysets.
Preferably, described two pieces of short keysets and the hinged one end of long chovr body 6 link together.
Adopt above-mentioned technology, described two pieces short keyset one end and support lug 1 hinged, support lug 1 is clamped between two pieces of short keysets, and two pieces of short keysets and support lug 1 relatively rotate around pin joint, makes short chovr body 7 can have zone of action in small space.
Preferably, described long chovr body 6 is two pieces of long keysets be arranged in parallel, and described overline bridge otic placode 2 is clamped between two block length keysets.Adopt this technology, described two block length keyset one end and overline bridge otic placode 2 hinged, overline bridge otic placode 2 is clamped between two block length keysets, and two block length keysets and overline bridge otic placode 2 relatively rotate around pin joint, makes long chovr body 6 can have zone of action in small space.
Shown in seeing figures.1.and.2, in reality is implemented, this collapsible fall-proofing device is arranged on overline bridge and bearing, when overline bridge relative to bearing away from motion time, this collapsible fall-proofing device can stretch short chovr body 7 and long chovr body 6, play the effect preventing overline bridge from falling, with limit overline bridge away from time maximum displacement.When overline bridge motion close relative to bearing, this collapsible fall-proofing device can fold short chovr body 7 and long chovr body 6, short chovr body 7 is embedded in long chovr body 6 completely, plays the effect preventing overline bridge from falling, with limit overline bridge near time maximum displacement.
Claims (9)
1. a collapsible fall-proofing device, it is characterized in that, comprise the support lug be arranged on bearing, the overline bridge otic placode be arranged on overline bridge, long chovr body and short chovr body, described short chovr body one end and support lug is hinged, the other end and long chovr body one end hinged, the described long chovr body other end and overline bridge otic placode hinged, and described long chovr body inside is provided with for holding described short chovr body space.
2. collapsible fall-proofing device according to claim 1, it is characterized in that, also comprise upper pin, middle bearing pin and lower bearing pin, described short chovr body one end is by lower bearing pin and support lug is hinged, the other end by middle bearing pin and long chovr body one end hinged, the described long chovr body other end by upper pin and overline bridge otic placode hinged.
3. collapsible fall-proofing device according to claim 2, it is characterized in that, described lower bearing pin, middle bearing pin, upper pin include bar portion and be positioned at one end, bar portion and with the integrated head in described bar portion, described head diameter is greater than bar portion diameter, and the other end in described bar portion is provided with fixture.
4. collapsible fall-proofing device according to claim 3, is characterized in that, be provided with pad between the head of described lower bearing pin and short chovr body, described lower bearing pin is provided with pad between fixture and short chovr body.
5. collapsible fall-proofing device according to claim 3, is characterized in that, is provided with pad between the head of described middle bearing pin and long chovr body, and described middle bearing pin is provided with pad between fixture and long chovr body.
6. collapsible fall-proofing device according to claim 3, is characterized in that, be provided with pad between the head of described upper pin and long chovr body, described upper pin is provided with pad between fixture and long chovr body.
7. collapsible fall-proofing device according to claim 1, is characterized in that, described short chovr body is two pieces of short keysets be arranged in parallel, and described support lug is clamped between two pieces of short keysets.
8. collapsible fall-proofing device according to claim 7, is characterized in that, described two pieces of short keysets and the hinged one end of long chovr body link together.
9. collapsible fall-proofing device according to claim 1, is characterized in that, described long chovr body is two pieces of long keysets be arranged in parallel, and described overline bridge otic placode is clamped between two block length keysets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520677619.6U CN204919305U (en) | 2015-09-01 | 2015-09-01 | Foldable dropproof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520677619.6U CN204919305U (en) | 2015-09-01 | 2015-09-01 | Foldable dropproof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204919305U true CN204919305U (en) | 2015-12-30 |
Family
ID=54968449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520677619.6U Active CN204919305U (en) | 2015-09-01 | 2015-09-01 | Foldable dropproof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204919305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887697A (en) * | 2016-06-13 | 2016-08-24 | 中铁八局集团第二工程有限公司 | Temporary flexible leg hinged support fixing device for bridge girder erection machine |
-
2015
- 2015-09-01 CN CN201520677619.6U patent/CN204919305U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887697A (en) * | 2016-06-13 | 2016-08-24 | 中铁八局集团第二工程有限公司 | Temporary flexible leg hinged support fixing device for bridge girder erection machine |
| CN105887697B (en) * | 2016-06-13 | 2019-01-11 | 中铁八局集团第二工程有限公司 | A kind of Bridge Erector flexible leg twisted seat temporary fastening device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |