CN212956114U - Bridge expansion joint - Google Patents
Bridge expansion joint Download PDFInfo
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- CN212956114U CN212956114U CN202021291233.9U CN202021291233U CN212956114U CN 212956114 U CN212956114 U CN 212956114U CN 202021291233 U CN202021291233 U CN 202021291233U CN 212956114 U CN212956114 U CN 212956114U
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- pontic
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- fishback
- expansion joint
- bridge
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Abstract
The application relates to a bridge expansion joint, which belongs to the technical field of bridges. It is including the relative first pontic and the second pontic that sets up, leave the expansion joint between the first pontic and the second pontic, the first pontic is close to the side of second pontic articulates there is first fishback, the second pontic is close to the side of first pontic articulates there is the second fishback, first fishback and second fishback intermeshing. Through the meshing of first fishback and second fishback, cover the expansion joint of bridge for the vehicle is comparatively smooth-going when traveling on the expansion joint, and when the ascending fluctuation of vertical side took place for the bridge, first fishback rotated along the articulated department of first pontic, and the articulated department of second fishback along the second pontic rotates, reduces the fluctuation of expansion joint in vertical side, improves the life of bridge.
Description
Technical Field
The application relates to the technical field of bridges, in particular to a bridge expansion joint.
Background
In the bridge construction process, in order to enable the bridge deck plates of the bridge to stretch out and draw back, an expansion joint is arranged between every two adjacent bridge deck plates and is used for adjusting displacement and connection between upper structures caused by vehicle load and bridge building materials, so that the vehicle can run smoothly without jumping and noise.
The Chinese utility model with the authorized announcement number of CN204325912U discloses a comb plate expansion joint device, which comprises a first comb plate and a second comb plate, wherein a transverse clamping groove is arranged in the length direction of the first comb teeth, and a transverse clamping block matched with the transverse clamping groove is arranged in the length direction of the second comb teeth; or a transverse clamping block is arranged in the length direction of the first comb teeth, and a transverse clamping groove matched with the transverse clamping block is arranged in the length direction of the second comb teeth.
Among the above-mentioned technical scheme, first comb board and second comb board link to each other through horizontal draw-in groove and horizontal fixture block, make the second comb board be difficult to take off, have the effect of preventing stealing, but the bridge is in the in-service use in-process, not only can be because of the horizontal migration that expend with heat and contract with cold produced, still can produce the ascending fluctuation of vertical side because of reasons such as wind-blowing for the damage of bridge.
SUMMERY OF THE UTILITY MODEL
In order to reduce the fluctuation of bridge in vertical direction, this application provides a bridge expansion joint.
The application provides a bridge expansion joint adopts following technical scheme:
the utility model provides a bridge expansion joint, includes the relative first pontic and the second pontic that sets up, leave the expansion joint between the first pontic and the second pontic, the first pontic is close to the side of second pontic articulates there is first fishback, the second pontic is close to the side of first pontic articulates there is the second fishback, first fishback and second fishback intermeshing.
Through adopting above-mentioned technical scheme, through the meshing of first fishback and second fishback, cover the expansion joint of bridge for the vehicle is comparatively smooth-going when traveling on the expansion joint, and when the ascending fluctuation of vertical side took place for the bridge, first fishback rotated along the articulated department of first pontic, and the articulated department of second fishback along the second pontic rotates, reduces the fluctuation of expansion joint in vertical side, improves the life of bridge.
The application is further configured to: the side that first pontic is close to the second pontic and the second pontic is close to the side of first pontic has all been seted up and has been held the chamber, and two are held the intracavity and all are equipped with buffer unit, buffer unit includes the buffer spring of vertical setting, buffer spring's one end hold the chamber wall and connect, and the other end is connected with first fishback or second fishback.
By adopting the technical scheme, when the vehicle is pressed on the first comb plate or the second comb plate, the buffer spring gives an upward force to the first comb plate and the second comb plate, so that the sinking distance of the first comb plate and the second comb plate is reduced, and the vehicle can run smoothly on the expansion joint; when the bridge takes place the ascending undulant of vertical side, buffer spring reduces the fluctuation volume of first fishback and second fishback on acting on first fishback and second fishback, reduces the fluctuation of expansion joint in vertical side.
The application is further configured to: the buffer assembly further comprises a butt column coaxially penetrating through the buffer spring, and the butt column is fixedly connected with the wall of the accommodating cavity.
By adopting the technical scheme, the abutting column limits the buffer spring to move in the radial direction, so that the buffer spring is prevented from being bent, and the service life of the buffer spring is prolonged; when heavier vehicle or object press on first fishback or second fishback, butt post and first fishback or second fishback looks butt avoid buffer spring atress too big and damage.
The application is further configured to: and a rubber pad is arranged at one end of the butt joint column, which is far away from the wall of the accommodating cavity.
Through adopting above-mentioned technical scheme, when first fishback or second fishback pressed on the butt post, first fishback or second fishback can have certain buffering effect with rubber pad looks butt, simultaneously, reduce vibrations between first fishback or second fishback and the butt post, reduce the noise that first fishback or second fishback and butt post contact take place.
The application is further configured to: first fishback includes the first board and connect in a plurality of first broach of first board, first broach is close to first inlay groove has been seted up to the side of second pontic, first inlay groove wear to be equipped with the second dust guard that second fishback is connected, second fishback includes the second board and connect in the second broach of second board, the second broach is close to the second fishback has been seted up to the side of first pontic, the second inlay groove wear to be equipped with the first dust guard that first fishback is connected.
Through adopting above-mentioned technical scheme, first dust guard blocks the clearance between the adjacent second broach on the second fishback, and the clearance between the adjacent first broach on the first fishback is blocked to the second dust guard baffle, through the effect of first dust guard and second dust guard, reduces in the debris that the bridge surface falls into the expansion joint.
The application is further configured to: the first board is provided with a first yielding groove for embedding the second dustproof board, and the second board is provided with a second yielding groove for embedding the first dustproof board.
Through adopting above-mentioned technical scheme, when taking place horizontal migration between first pontic and the second pontic, first dust guard gets into the second and steps down the inslot, and the second dust guard gets into the first inslot that steps down, makes first dust guard can move on second fishback, and the second dust guard can move on first fishback.
The application is further configured to: the first comb teeth are connected with the first dust guard through screws, and the second comb teeth are connected with the second dust guard through screws.
By adopting the technical scheme, the first comb teeth are connected with the first dustproof plate through the screws, so that the first dustproof plate is detachably connected with the first comb teeth, and the first dustproof plate is convenient to maintain and replace; the second comb teeth are connected with the second dust guard through screws, so that the second dust guard is detachably connected with the second comb teeth, and the second dust guard is convenient to maintain and replace.
The application is further configured to: a gap is reserved between the first dustproof plate and the second dustproof plate.
Through adopting above-mentioned technical scheme, when taking place horizontal migration between first pontic and the second pontic, the clearance between first dust guard and the second dust guard makes first dust guard move on second fishback, and the second dust guard moves on first fishback.
To sum up, the beneficial technical effect of this application does:
1. the expansion joint of the bridge is covered by meshing the first comb plate and the second comb plate, so that a vehicle can run smoothly on the expansion joint, when the bridge fluctuates in the vertical direction, the first comb plate rotates along the hinged part of the first bridge body, and the second comb plate rotates along the hinged part of the second bridge body, so that fluctuation of the expansion joint in the vertical direction is reduced, and the service life of the bridge is prolonged;
2. the buffer assembly provides buffer when the bridge vertically fluctuates, so that fluctuation of the expansion joint in the vertical direction is reduced, and the service life of the bridge is prolonged;
3. through the effect of first dust guard and second dust guard, reduce the debris on bridge surface and fall into in the expansion joint.
Drawings
Fig. 1 is a schematic view of the overall structure of a bridge expansion joint in the embodiment of the present application.
Fig. 2 is a partial top view of the bridge expansion joint in the embodiment of the present application.
Fig. 3 is a cross-sectional view a-a of fig. 2.
In the figure, 1, a first bridge; 11. a first comb plate; 12. a first plate; 13. a first comb tooth; 14. a first embedding groove; 15. a first abdicating groove; 16. a first dust-proof plate; 2. a second bridge body; 21. a second comb plate; 22. a second plate; 23. a second comb tooth; 24. a second embedding groove; 25. a second abdicating groove; 26. a second dust-proof plate; 3. an expansion joint; 4. an accommodating chamber; 5. a buffer assembly; 51. a buffer spring; 52. a butting post; 53. and (7) a rubber pad.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
Referring to fig. 1, a bridge expansion joint comprises a first bridge body 1 and a second bridge body 2 which are oppositely arranged, and an expansion joint 3 is reserved between the first bridge body 1 and the second bridge body 2. The side that first pontic 1 is close to second pontic 2 articulates there is first fishback 11, and the side that second pontic 2 is close to first pontic 1 articulates there is second fishback 21, and first fishback 11 and second fishback 21 all are surperficial parallel and level mutually with the bridge to first fishback 11 and second fishback 21 intermeshing.
Referring to fig. 2 and 3, the first comb plate 11 includes a first plate 12 and a plurality of first comb teeth 13 connected to the first plate 12, the first comb teeth 13 are arranged at the same interval along the length direction of the first plate 12, a first embedded groove 14 is provided on the side of the first comb teeth 13 away from the first plate 12, the first embedded groove 14 penetrates through the two side faces of the first comb teeth 13 along the length direction of the first plate 12, the first embedded groove 14 is a through groove having three notches, a first abdicating groove 15 is provided on the side of the first plate 12 close to the first comb teeth 13, and the first abdicating groove 15 is communicated with the first embedded groove 14. Wear to be equipped with the second dust guard 26 of being connected with second fishback 21 in the first inlay groove 14, second dust guard 26 covers the space between the adjacent two first broach 13 to when first pontic 1 and second pontic 2 take place the horizontal fluctuation and first fishback 11 and second fishback 21 move in opposite directions, second dust guard 26 can follow first inlay groove 14 and move to first groove 15 of stepping down, avoids second dust guard 26 to damage because of the extrusion.
The second comb plate 21 comprises a second plate 22 and a plurality of second comb teeth 23 connected to the second plate 22, the plurality of second comb teeth 23 are arranged at the same interval along the length direction of the second plate 22, a second embedded groove 24 is formed in the side face, far away from the second plate 22, of each second comb tooth 23, the second embedded groove 24 penetrates through the two side faces, along the length direction of the second plate 22, of each second comb tooth 23, the second embedded groove 24 is a through groove with three notches, a second yielding groove 25 is formed in the side face, close to the second comb teeth 23, of the second plate 22, and the second yielding groove 25 is communicated with the second embedded groove 24. Wear to be equipped with the first dust guard 16 of being connected with first fishback 11 in the second inlay groove 24, first dust guard 16 covers the space between the two adjacent second broach 23 to when first pontic 1 and second pontic 2 take place the horizontal fluctuation and first fishback 11 and second fishback 21 move in opposite directions, first dust guard 16 can follow second inlay groove 24 and move to second groove 25 of stepping down, avoids first dust guard 16 to damage because of the extrusion.
One side of the first dustproof plate 16, which is close to the first plate 12, is positioned in the first embedded groove 14, and the first comb teeth 13 are connected with the first dustproof plate 16 through screws, so that the first comb teeth 13 can drive the first dustproof plate 16 to move horizontally; one side of the second dustproof plate 26 close to the second plate 22 is located in the second embedding groove 24, and the second comb teeth 23 are connected with the second dustproof plate 26 through screws, so that the second comb teeth 23 can drive the second dustproof plate 26 to move horizontally.
After the first dust guard 16 is connected with the first comb plate 11 and the second dust guard 26 is connected with the second comb plate 21, a gap is reserved between the first dust guard 16 and the second dust guard 26, when the first bridge body 1 and the second bridge body 2 fluctuate horizontally and the first comb plate 11 moves back to back with the second comb plate 21, the first dust guard 16 and the second dust guard 26 move inwards in the gap, a certain buffer space is provided, and mutual extrusion between the first dust guard 16 and the second dust guard 26 is avoided.
First pontic 1 is close to the side of second pontic 2 and the side that second pontic 2 is close to first pontic 1 has all been seted up and has been held chamber 4, two are held and all are equipped with buffer unit 5 in the chamber 4, buffer unit 5 includes buffer spring 51 and the coaxial butt post 52 of wearing to locate buffer spring 51 of vertical setting, buffer spring 51 is compression spring, buffer spring 51's one end holds 4 chamber wall fixed connection in chamber, the other end and first fishback 11 or second fishback 21 fixed connection, butt post 52 with hold 4 chamber wall fixed connection in chamber.
One end of the abutting column 52 far away from the wall of the accommodating cavity 4 is sleeved with a rubber pad 53.
The working principle of the embodiment is as follows: when the bridge fluctuates in the vertical direction, the first comb plate 11 rotates along the hinged part with the first bridge body 1, the second comb plate 21 rotates along the hinged part with the second bridge body 2, and the buffer spring 51 acts on the first comb plate 11 and the second comb plate 21; when the bridge fluctuates in the horizontal direction, the first comb plate 11 drives the first dust guard 16 to move in the second embedded groove 24 and the second yielding groove 25, and the second comb plate 21 drives the second dust guard 26 to move in the first embedded groove 14 and the first yielding groove 15.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a bridge expansion joint, includes relative first pontic (1) and the second pontic (2) that sets up, leave expansion joint (3) between first pontic (1) and the second pontic (2), its characterized in that, first pontic (1) is close to the side of second pontic (2) articulates there is first fishback (11), second pontic (2) are close to the side of first pontic (1) articulates there is second fishback (21), first fishback (11) and second fishback (21) intermeshing.
2. The bridge expansion joint according to claim 1, wherein the side of the first bridge body (1) close to the second bridge body (2) and the side of the second bridge body (2) close to the first bridge body (1) are both provided with accommodating cavities (4), two accommodating cavities (4) are both provided with buffer components (5), each buffer component (5) comprises a vertically arranged buffer spring (51), one end of each buffer spring (51) is connected with the wall of the accommodating cavity (4), and the other end of each buffer spring is connected with the first comb plate (11) or the second comb plate (21).
3. The bridge expansion joint according to claim 2, wherein the buffer assembly (5) further comprises an abutting column (52) coaxially passing through the buffer spring (51), and the abutting column (52) is fixedly connected with the wall of the accommodating cavity (4).
4. A bridge expansion joint according to claim 3, wherein the abutment post (52) is provided with a rubber pad (53) at the end remote from the wall of the housing chamber (4).
5. The bridge expansion joint according to claim 1, wherein the first comb plate (11) comprises a first plate (12) and a plurality of first comb teeth (13) connected to the first plate (12), a first embedded groove (14) is formed in the side surface of the first comb teeth (13) close to the second bridge body (2), a second dustproof plate (26) connected to the second comb plate (21) penetrates through the first embedded groove (14), the second comb plate (21) comprises a second plate (22) and a second comb tooth (23) connected to the second plate (22), a second embedded groove (24) is formed in the side surface of the second comb tooth (23) close to the first bridge body (1), and a first dustproof plate (16) connected to the first comb plate (11) penetrates through the second embedded groove (24).
6. The bridge expansion joint according to claim 5, wherein the first plate (12) is provided with a first recess (15) for the second dust-proof plate (26) to be inserted into, and the second plate (22) is provided with a second recess (25) for the first dust-proof plate (16) to be inserted into.
7. A bridge expansion joint according to claim 5, characterized in that the first comb teeth (13) are connected with the first dust guard (16) by screws, and the second comb teeth (23) are connected with the second dust guard (26) by screws.
8. A bridge expansion joint according to claim 5, wherein a gap is left between the first dust guard (16) and the second dust guard (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021291233.9U CN212956114U (en) | 2020-07-02 | 2020-07-02 | Bridge expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021291233.9U CN212956114U (en) | 2020-07-02 | 2020-07-02 | Bridge expansion joint |
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| Publication Number | Publication Date |
|---|---|
| CN212956114U true CN212956114U (en) | 2021-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021291233.9U Active CN212956114U (en) | 2020-07-02 | 2020-07-02 | Bridge expansion joint |
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| CN (1) | CN212956114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114908635A (en) * | 2022-05-26 | 2022-08-16 | 中冶南方城市建设工程技术有限公司 | Quick-replaceable combined type pavement expansion joint shock absorption self-adjusting system |
-
2020
- 2020-07-02 CN CN202021291233.9U patent/CN212956114U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114908635A (en) * | 2022-05-26 | 2022-08-16 | 中冶南方城市建设工程技术有限公司 | Quick-replaceable combined type pavement expansion joint shock absorption self-adjusting system |
| CN114908635B (en) * | 2022-05-26 | 2023-12-05 | 中冶南方城市建设工程技术有限公司 | Quick-replaceable composite road expansion joint shock absorption self-adjusting system |
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