CN205604071U - Bridge expansion device - Google Patents
Bridge expansion device Download PDFInfo
- Publication number
- CN205604071U CN205604071U CN201620435733.2U CN201620435733U CN205604071U CN 205604071 U CN205604071 U CN 205604071U CN 201620435733 U CN201620435733 U CN 201620435733U CN 205604071 U CN205604071 U CN 205604071U
- Authority
- CN
- China
- Prior art keywords
- water blocking
- blocking tape
- groove
- draw
- block tongue
- 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
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a bridge expansion device, this bridge expansion device, have the draw -in groove on and including the abnormal shape to and have one with the waterproof area of draw -in groove installation, wherein an abnormal shape draw -in groove is equipped with the last jack catch and lower jack catch that misplaces each other, is somebody's turn to do the breach of going up the jack catch and forming a determining deviation down between the jack catch, the both ends in waterproof area have one and are one -way arrow point block tongue, and the waterproof area surface that this one -way arrow point block tongue corresponds the opposite side is equipped with one section stopping tooth, still include waterproof area middle part has the prominent arc buffer body that makes progress. Consequently, through the one -way arrow point block tongue and the stopping tooth in waterproof area, respectively with abnormal shape draw -in groove on the auto -lock stuck point contact cooperation that forms two dislocation of upper and lower jack catch form spacingly, avoid deviating from of waterproof area, reasonable in design has, simple structure can satisfy again to change and dismantle simultaneously. Overcome prior art's the waterproof simple to operate of taking and dismantled the defect of difficulty.
Description
Technical field
This utility model relates to a kind of retractor device, a kind of bridge extension joint.
Background technology
Owing to bridge erection is directed to telescoping problem, so the design form of disclosed bridge extension joint is the most, as used profiled piece, and the shelves water layer that the water blocking tape being connected with profiled piece is constituted.Its mode combined be utilize on the profiled piece that is anchored in beam body with round or c-type bayonet socket and water blocking tape on realize self-locking with round or T-shaped self-locking claw.Said structure mode can meet flexible and waterproof requirement in design and use, but owing to water blocking tape is to use elastomeric material to make, all refers to the aging of elastomeric material and replacing problem.Therefore, will be in view of being easily installed and the factor such as dismounting during design, for this, when the circle of above-mentioned employing or T-shaped self-locking claw are installed, utilize the deformation of round or T-shaped self-locking claw self to be inserted into that profiled piece is round or mutual snap-fit in c-type bayonet socket, it is achieved that water blocking tape install after self-locking and bridge stretch waterproof requirement.But that brings another problem is that, when water blocking tape is aging need change time, need aging water blocking tape dismounting, owing to design is to utilize water blocking tape snap-fit relation on water blocking tape on protruding symmetrical clip or circular cambered surface and profiled piece draw-in groove less than the bayonet socket of clip width, so difficulty when causing dismounting.It is to say, water blocking tape can enter the design that can not go out relative to profiled piece draw-in groove, this is also the odjective cause being difficult at present be widely applied.
Summary of the invention
In view of above-mentioned present situation, this utility model provides a kind of bridge extension joint, this bridge extension joint, including profiled piece and upper with draw-in groove, and has one and the water blocking tape of draw-in groove installation；Wherein said profiled piece draw-in groove is provided with the upper clipping claw missed one another and lower claw, forms the breach of a determining deviation between this upper clipping claw and lower claw；The two ends of described water blocking tape have one in unidirectional arrow block tongue, the water blocking tape surface of this unidirectional arrow block tongue correspondence opposite side is provided with one section of locking tooth；Also include that there is in the middle part of described water blocking tape an arc buffering body upwardly.Therefore, when water blocking tape unidirectional arrow block tongue insert profiled piece card slot fit time, utilize the deadweight of water blocking tape be clamped on the upper and lower claw of profiled piece formed two dislocation self-locking stuck points on, to install after water blocking tape carry out spacing prevent abjection.During replacing, effect water blocking tape unidirectional arrow block tongue departs from profiled piece upper clipping claw can be exited, convenient and swift.
During this is novel, the breach spacing formed between described upper clipping claw and lower claw is equal with the thickness of the unidirectional arrow block tongue boss of water blocking tape.
Further, described upper clipping claw is tack body, or sphenoid.
Further, described lower claw is sphenoid, or may be designed as round end body on sphenoid top.
Further, the locking tooth indentation on described water blocking tape.
The beneficial effects of the utility model are: because the locking position of water blocking tape have employed the locking tooth that unidirectional arrow block tongue is provided with another matching part, the self-locking card point cantact forming two dislocation respectively with the upper and lower claw on profiled piece draw-in groove coordinates, and the water blocking tape after installing carries out limiting locking and prevents abjection.Owing to the spacing inserting breach of the upper and lower claw on the profiled piece draw-in groove of this new design is equal with the thickness of the unidirectional arrow block tongue boss of water blocking tape, when dismounting changed by needs, to press under water blocking tape unidirectional arrow block tongue position, and lower claw loses the snap action with locking tooth the most simultaneously, profiled piece upper clipping claw can be departed from and directly exit, convenient and swift.Overcoming prior art utilizes the bayonet socket being less than clip width on symmetrical clip protruding on water blocking tape or circular cambered surface and profiled piece draw-in groove by water blocking tape snap-fit, causes difficulty during dismounting.It is to say, water blocking tape can enter the design that can not go out relative to profiled piece draw-in groove.
Accompanying drawing explanation
Fig. 1 is the scheme of installation that this is novel.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
A kind of bridge extension joint as shown in Figure 1, this bridge extension joint, including profiled piece 1, it is connected to beam body 2 end by anchoring piece 3 thereon.With draw-in groove on described profiled piece 1, and include the water blocking tape 6 that the draw-in groove installation with profiled piece 1 is connected.The draw-in groove of profiled piece 1 described in the present embodiment is provided with the upper clipping claw 8 missed one another and lower claw 4, forms the breach (insert port) of a determining deviation between this upper clipping claw 8 and lower claw 4, above-mentioned in upper clipping claw 8 and lower claw 4 act primarily as position-limiting action.The two ends of this most novel described water blocking tape 6 body have one in unidirectional arrow block tongue 9, water blocking tape 6 surface of the corresponding opposite side position of this unidirectional arrow block tongue 9 is provided with one section of locking tooth 5.During this is novel, locking tooth 5 indentation on described water blocking tape.Unidirectional arrow block tongue 9 and the common feature of locking tooth 5 described in the present embodiment have perpendicular end surface, utilize upper clipping claw 8 that perpendicular end surface acts on profiled piece 1 jointly and lower claw 4 to form two dislocation and support the interlocked with one another of stuck points.Therefore, when water blocking tape unidirectional arrow block tongue 9 inserts profiled piece 1 card slot fit, the upper clipping claw 8 certainly focusing on profiled piece 1 of water blocking tape 6, lower claw 4 is utilized to form the self-locking stuck point of two dislocation, when beam body thermal expansion, effect water blocking tape 6 deformation is bent downwardly, water blocking tape unidirectional arrow block tongue 9 and locking tooth 5 act on the upper clipping claw 8 of profiled piece 1, lower claw 4 jointly by firmly clamping, and the water blocking tape 6 after installing carries out spacing preventing abjection.During replacing, effect water blocking tape unidirectional arrow block tongue 9 and locking tooth 5 depart from profiled piece 1 upper clipping claw 8 and lower claw 4, can exit, so it is quick to have easy installation and removal.During this is novel, there is in the middle part of involved water blocking tape 6 an arc buffering body 7 upwardly.The effect of this arc buffering body 7 is, when beam body is shunk, effect water blocking tape 6 is stretched the trend shifted up, the overall variation of water blocking tape 6 can be prevented by the deformation of arc buffering body 7, spacing to water blocking tape 6 plays assosting effect, it is to avoid bring the change between water blocking tape unidirectional arrow block tongue 9 and relative profiled piece 1 upper clipping claw 8 of locking tooth 5 and lower claw 4.In above-mentioned, the breach spacing formed between described upper clipping claw 8 and lower claw 4 is equal with the thickness of unidirectional arrow block tongue 9 boss of water blocking tape.This point is also the feature of the design, can meet water blocking tape unidirectional arrow block tongue 9 convenient with the installing/dismounting that profiled piece 1 upper clipping claw 8 and lower claw 4 form breach (insert port).Described in the present embodiment, upper clipping claw 8 is sphenoid, tilted laterally by the perpendicular end surface inside profiled piece 1 draw-in groove upper end, be conducive to contacting end face between upper clipping claw 8 and the perpendicular end surface of water blocking tape unidirectional arrow block tongue 9 that the perpendicular end surface increasing draw-in groove formed, improve restraining ability.In like manner, described in the present embodiment, lower claw 4 is sphenoid.I.e. being tilted laterally by the perpendicular end surface of profiled piece 1 draw-in groove lower end inside, it is identical that it acts on upper clipping claw 8, is conducive to improving restraining ability.From above-mentioned
In above-mentioned, in addition to upper clipping claw 8 uses sphenoid, it would however also be possible to employ tack body.Select according to specific needs.
In above-mentioned, in addition to described lower claw 4 is sphenoid, it is also possible to be to become round end body in sphenoid tip designs.
Implement this most novel it is crucial that water blocking tape 6 can reliablely and stablely be locked with profiled piece 1, i.e. have employed the principle of lever.The suitable lever of water blocking tape 6, say that water blocking tape 6 is arranged on as on the lower claw 4 of fulcrum, the displacement of water blocking tape 6 is prevented by coordinating of locking tooth 5 and lower claw 4, produce downward active force further through the sagging water blocking tape 6 being pointed to lower claw 4 side of water blocking tape 6 dead weight simultaneously, effect is positioned at the water blocking tape 6 of lower claw 4 opposite side and produces the active force shifted up, restraining forces is formed, it is ensured that water blocking tape 6 and profiled piece 1 are formed good spacing fixing between effect water blocking tape unidirectional arrow block tongue 9 and profiled piece 1 upper clipping claw 8.
Claims (5)
1. a bridge extension joint, this bridge extension joint, including profiled piece and on draw-in groove, and there is one and water blocking tape that draw-in groove is installed；It is characterized in that, described profiled piece (1) draw-in groove is provided with the upper clipping claw (8) and lower claw (4) missed one another, and forms the breach of a determining deviation between this upper clipping claw (8) and lower claw (4)；The two ends of described water blocking tape have one in unidirectional arrow block tongue (9), the water blocking tape surface of the corresponding opposite side of this unidirectional arrow block tongue (9) is provided with one section of locking tooth (5)；Also include that described water blocking tape (6) middle part has an arc buffering body (7) upwardly.
Bridge extension joint the most according to claim 1, is characterized in that, the breach spacing formed between described upper clipping claw (8) and lower claw (4) is equal with the thickness of unidirectional arrow block tongue (9) boss of water blocking tape.
Bridge extension joint the most according to claim 1, is characterized in that, described upper clipping claw (8) is tack body, or sphenoid.
Bridge extension joint the most according to claim 1, is characterized in that, described lower claw (4) is sphenoid, or may be designed as round end body on sphenoid top.
Bridge extension joint the most according to claim 1, is characterized in that, locking tooth (5) indentation on described water blocking tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620435733.2U CN205604071U (en) | 2016-05-16 | 2016-05-16 | Bridge expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620435733.2U CN205604071U (en) | 2016-05-16 | 2016-05-16 | Bridge expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205604071U true CN205604071U (en) | 2016-09-28 |
Family
ID=56966200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620435733.2U Expired - Fee Related CN205604071U (en) | 2016-05-16 | 2016-05-16 | Bridge expansion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205604071U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700080A (en) * | 2019-10-16 | 2020-01-17 | 中铁大桥局集团有限公司 | Anti-falling waterproof device for beam end of large-span bridge |
-
2016
- 2016-05-16 CN CN201620435733.2U patent/CN205604071U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700080A (en) * | 2019-10-16 | 2020-01-17 | 中铁大桥局集团有限公司 | Anti-falling waterproof device for beam end of large-span bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20170516 |