CN210946475U - Bridge comb-tooth type expansion joint device with anti-loosening function - Google Patents
Bridge comb-tooth type expansion joint device with anti-loosening function Download PDFInfo
- Publication number
- CN210946475U CN210946475U CN201920985703.2U CN201920985703U CN210946475U CN 210946475 U CN210946475 U CN 210946475U CN 201920985703 U CN201920985703 U CN 201920985703U CN 210946475 U CN210946475 U CN 210946475U
- Authority
- CN
- China
- Prior art keywords
- fixed
- beam end
- bridge
- comb
- expansion joint
- 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.)
- Active
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The utility model discloses a bridge broach formula expansion joint device with locking function, including locating movable fishback (1) of walking beam end (8) top surface to and locate fixed fishback (7) of fixed beam end or abutment (11) top surface, locking mechanism including respectively pre-buried in U type bolt (4) in walking beam end (8) and fixed beam end or abutment (11), threaded hole has all been seted up to movable fishback (1) and fixed fishback (7), U type bolt (4) top is connected with the screw hole cooperation, and realizes through lock washer (3) and nut (2) movable fishback (1) is fixed with walking beam end (8), and fixed fishback (7) with fixed connection between fixed beam end or the abutment (11). The utility model discloses an expansion joint device, any not hard up trend of nut is all wedged the effect and is stopped by this kind of big sawtooth to prevent not hard up of nut, effectively protect the fixed of fishback and roof beam body.
Description
Technical Field
The utility model belongs to bridge expansion joint field, more specifically relates to a bridge broach formula expansion joint device with locking function.
Background
The bridge expansion joint is an important part in bridge building facilities, and the damage of the expansion joint directly influences the safe use of the bridge and shortens the service life of the bridge. The damage or the loss of the bridge expansion joint has a long-term shape and repeatability, so the improvement of the expansion joint maintenance construction technology is the key point in daily maintenance construction.
When the temperature of the bridge changes, the bridge deck has longitudinal expansion and contraction deformation, and under the action of vehicle load, longitudinal displacement is caused. In order to meet the deformation, expansion joints are arranged between broken beams of the bridge deck, between beam ends and bridge abutments or at the hinged positions of the bridge deck. Because the expansion joint sets up in weak position of structures such as beam-ends, and directly bear the effect of vehicle repeated load, the very little unevenness in expansion joint adjacent region all can make it bear very big impact, leads to concrete toughness and shock resistance around the expansion joint to weaken, and easy damage under frequent impact to lead to the deformation destruction of expansion joint, make driving travelling comfort reduce, the noise increase, crisis bridge and driving safety. Years of bridge inspection practice shows that bridge expansion joints become one of the most frequently damaged parts of bridge structures.
The common bridge expansion device is a comb-tooth expansion joint. The bridge broach formula expansion joint adopts U type bolt anchor usually in the roof beam end concrete, adopts the nut again to fix the fishback at the roof beam end, and what the expansion joint adopted with the roof beam body is that bolt and nut are fixed, under the effect of vehicle repeated load, easily produces not hard up of nut to lead to the impaired of expansion joint, the destruction of the roof beam body even.
SUMMERY OF THE UTILITY MODEL
To the above defect or the improvement demand of prior art, the utility model provides a bridge broach formula expansion joint device with locking function constitutes one set of lock washer through two the same packing rings, and every piece is gone up the lower surface and is had different sawtooth, and when screwing up the nut, little tooth face sawtooth tightly bites the contact surface, makes the packing ring fix. Any tendency of the nut to loosen is prevented by the wedging effect of the large serrations, thereby preventing the nut from loosening and effectively protecting the comb plate from being fixed to the beam body.
In order to achieve the above object, the utility model provides a bridge broach formula expansion joint device with locking function, include:
the movable comb plate is arranged on the top surface of the movable beam end, and the fixed comb plate is arranged on the top surface of the fixed beam end or the bridge abutment, the movable comb plate and the fixed comb plate are meshed with each other, and an expansion joint is reserved;
locking mechanism, this locking mechanism including bury in respectively the U type bolt in walking beam end and fixed beam end or the abutment, the screw hole has all been seted up to activity fishback and fixed fishback, U type bolt top is connected with the screw hole cooperation to realize through lock washer and nut the fixed of activity fishback and walking beam end, and fixed fishback with fixed connection between fixed beam end or the abutment.
Furthermore, small tooth surfaces are uniformly distributed on the upper end surface of the anti-loose washer in the circumferential direction, and large tooth surfaces are uniformly distributed on the lower end of the anti-loose washer in the circumferential direction.
Further, the slope angle of the large tooth surface is larger than the thread angle of the U-shaped bolt, and the slope is consistent with the orientation of the thread.
Further, the slope direction of the small tooth face is opposite to the slope direction of the large tooth face.
Furthermore, beam body embedded ribs are embedded in the movable beam end and the fixed beam end or the bridge abutment along the cross section direction, and the beam body embedded ribs are fixedly connected with the bottoms of the U-shaped bolts.
Furthermore, penetrating ribs are embedded in the movable beam end and the fixed beam end or the bridge abutment along the longitudinal direction and are fixedly connected with the bottoms of the U-shaped bolts.
Further, the movable beam end and the fixed beam end or the bridge abutment top are provided with grooves with certain depths, the movable comb plate is arranged in the grooves of the movable beam end, and the fixed comb plate is arranged in the grooves of the fixed two ends or the bridge abutment.
Furthermore, a stainless steel plate is arranged between the fixed beam end or the bridge abutment and the fixed comb plate.
Further, the movable comb plate spans the gap between the movable beam end and the fixed beam end or the bridge abutment, extends onto the stainless steel plate, and can slide along the stainless steel plate.
Furthermore, waterproof glue is arranged in a gap between the movable beam end and the fixed beam end or the bridge abutment.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:
1. the utility model discloses an expansion joint device constitutes one set of lock washer through two the same packing rings, and every piece is gone up the lower surface and is had different sawtooth, and when screwing up the nut, little tooth face sawtooth tightly bites the contact surface, makes the packing ring fix. Any tendency of the nut to loosen is prevented by the wedging effect of the large serrations, thereby preventing the nut from loosening and effectively protecting the comb plate from being fixed to the beam body.
2. The utility model discloses an expansion joint device, lock washer one side are the big tooth of cam form, and its slope angle is greater than U type bolt thread angle, and the another side is more dense toothlet. When the gasket is installed, the large tooth surfaces are opposite and installed in pairs, and the small tooth surfaces are respectively contacted with the nut and the comb plate. After the nut is screwed down and fixed, the small tooth face sawteeth tightly bite the contact surface of the nut and the comb plate, so that the gasket is fixed, and only the relative movement between the large tooth faces is allowed.
3. The utility model discloses an expansion joint device, when the comb plate takes place impact vibration, the lifting can be shifted to the big tooth face of packing ring, nevertheless pins the nut because of the principle that big tooth face slope angle is greater than U type bolt thread angle, and lifting distance between mated lock washer is greater than the distance of the bolt or the nut lifting that arouse because of the screw thread slides for comb plate can't become flexible.
4. The utility model discloses an expansion joint device, U type bolt positioning adjustment back, the bottom welding is guaranteed the firm of U type bolt on the pre-buried muscle of roof beam body and wear the muscle, when guaranteeing that it arouses longitudinal displacement under the effect of vehicle load, can not take place the U because of the type bolt is not hard up to lead to the unstability of broach expansion plate, reduce the potential safety hazard.
5. The utility model discloses an expansion joint device is equipped with waterproof sticky tape 5 in the department in two roof beam clearances, reaches waterproof effect, reduces its probability of taking place to corrode rusty to improve this locking device's security and reliability.
Drawings
Fig. 1 is a schematic structural view of a comb-type expansion joint device for a bridge with an anti-loosening function according to an embodiment of the present invention;
fig. 2 is a top view of a comb-type expansion joint device for a bridge with anti-loosening function according to an embodiment of the present invention;
fig. 3 is a partially enlarged view of an anti-loosening structure of a bridge comb-tooth type expansion joint device with an anti-loosening function according to an embodiment of the present invention;
fig. 4 is a structural view of a lock washer of the bridge comb-tooth type expansion joint device with a lock function according to the embodiment of the present invention;
fig. 5 is a top view of a small tooth surface of a check washer of a bridge comb-tooth type expansion joint device with a check function according to an embodiment of the present invention;
fig. 6 is a front view of a large tooth surface of a lock washer of a bridge comb-tooth type expansion joint device with a lock function.
In all the figures, the same reference numerals denote the same features, in particular: 1-movable comb plate, 2-nut, 3-anti-loose washer, 4-U-shaped bolt, 5-waterproof adhesive tape, 6-stainless steel plate, 7-fixed comb plate, 8-movable beam end, 9-beam body pre-embedded rib, 10-penetrating rib, 11-fixed beam end or bridge abutment, 12-small tooth surface and 13-large tooth surface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
Fig. 1 is a schematic structural view of a comb-type expansion joint device for a bridge with an anti-loosening function according to an embodiment of the present invention; fig. 2 is a top view of the utility model provides a bridge broach formula expansion joint device with locking function. As shown in fig. 1 and 2, the embodiment of the utility model provides a bridge broach formula expansion joint device with locking function, including activity fishback 1, nut 2, lock washer 3, U type bolt 4, waterproof sticky tape 5, corrosion resistant plate 6, fixed fishback 7, walking beam end 8, the pre-buried muscle of roof beam body 9, wear muscle 10 and fixed beam end or abutment 11. Wherein, the butt joint of walking beam end 8 and fixed beam end or abutment 11 to leave the clearance, the section is followed bridge length direction on the two butt joint department, excavates the recess of certain degree of depth, and movable fishback 1 is located in the recess of walking beam end 8, and stainless steel 6 is located in the recess of fixed both ends or abutment 11, and fixed fishback 7 is located this stainless steel 6 tops. As shown in fig. 1 and 2, the movable comb plate 1 extends to the stainless steel plate 6 across the gap and can slide along the stainless steel plate 6, and the movable comb plate 1 and the fixed comb plate 7 are engaged with each other and leave an expansion joint. Preferably, the stainless steel plate 6 has good flatness and rigidity, and avoids the deformation of the expansion joint caused by the weakening of the toughness and the impact resistance of concrete under the action of directly bearing the repeated load of a vehicle due to tiny unevenness of the adjacent area of the expansion joint.
Further, as shown in fig. 1, the pre-buried muscle 9 of roof beam body is transversely pre-buried in the concrete beam along the bridge, wear muscle 10 vertically pre-buried in the concrete beam along the bridge, U type bolt 4 adjusts the location back, the bottom welding is on pre-buried muscle 9 of roof beam body and wear muscle 10, guarantee U type bolt 4's firm, when guaranteeing that it arouses longitudinal displacement under the effect of vehicle load, can not take place U because of type bolt 4 is not hard up to lead to the unstability of broach expansion plate, reduce the potential safety hazard. Movable fishback 1, fixed fishback 7 and corrosion resistant plate 6 all set up threaded hole, and U type bolt 4 top is connected with the screw hole cooperation to realize through nut 2 movable fishback 1 and walking beam end 8 swing joint, and fixed fishback 7 and corrosion resistant plate 6 with fixed beam end or the fixed connection between the abutment 11.
Preferably, as shown in fig. 3, a lock washer 3 is disposed between the U-shaped bolt 4 and the nut 2, as shown in fig. 4-6, the upper end of the lock washer 3 is a small toothed surface 12 uniformly distributed on the circumference, and the lower end of the lock washer 3 is a large toothed surface 13 uniformly distributed on the circumference, when in use, the lock washers 3 are used in pairs, the large toothed surfaces 13 are engaged with each other, and the small toothed surfaces 12 are respectively contacted with the nut 2 and the movable comb plate 1 or the fixed comb plate 7, so as to ensure that the nut 2 is not loosened after being tightened. The slope angle of the large tooth surface 13 of the anti-loose washer 3 is larger than the thread angle of the U-shaped bolt, the slope is consistent with the ascending direction of the thread, the slope direction of the small tooth surface 12 is opposite to the slope direction of the large tooth surface 13, after the nut 2 is tightened and fixed, the sawteeth of the small tooth surface 12 tightly bite the contact surface of the nut 2 and the comb plate, so that the washer is fixed, and only the relative movement between the large tooth surfaces 13 is allowed. When the impact vibration takes place for the fishback, the lifting can be shifted to big tooth face 13 of packing ring, nevertheless pins nut 2 because of the principle that big tooth face 13 slope angle is greater than 4 screw thread angles of U type bolt, and the lifting distance between mated lock washer 3 is greater than the distance of the U type bolt 4 or the 2 lifting of nut that arouse because of the screw thread slides for the fishback can't become flexible, the fixed of effectual protection fishback and roof beam body.
In addition, as shown in fig. 1, the waterproof adhesive tape 5 is arranged at the gap between the two beams, so that rainwater on the expansion device can be quickly drained, the probability of corrosion and rusting of the expansion device is reduced, and the safety and reliability of the anti-loosening device are improved.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (10)
1. The utility model provides a bridge broach formula expansion joint device with locking function which characterized in that includes:
the movable comb plate (1) is arranged on the top surface of the movable beam end (8), the fixed comb plate (7) is arranged on the top surface of the fixed beam end or the bridge abutment (11), the movable comb plate (1) and the fixed comb plate (7) are meshed with each other, and an expansion joint is reserved;
locking mechanism, this locking mechanism including bury respectively in U type bolt (4) in walking beam end (8) and fixed beam end or abutment (11), activity fishback (1) and fixed fishback (7) all set up threaded hole, U type bolt (4) top is connected with the screw hole cooperation to realize through lock washer (3) and nut (2) the fixed of activity fishback (1) and walking beam end (8), and fixed fishback (7) with fixed connection between fixed beam end or the abutment (11).
2. The comb-tooth type expansion joint device for the bridge with the anti-loosening function as claimed in claim 1, wherein the upper end surface of the anti-loosening washer (3) is uniformly distributed with small tooth surfaces (12) in the circumferential direction, and the lower end is uniformly distributed with large tooth surfaces (13) in the circumferential direction.
3. The bridge comb-tooth type expansion joint device with the anti-loosening function according to claim 2, wherein the slope angle of the large tooth surface (13) is larger than the thread angle of the U-shaped bolt (4), and the slope of the slope is consistent with the orientation of the threads.
4. The bridge comb-tooth type expansion joint device with the anti-loosening function according to claim 2 or 3, wherein the slope direction of the small tooth surface (12) is opposite to the slope direction of the large tooth surface (13).
5. The comb-tooth type expansion joint device for bridge with anti-loose function according to claim 1 or 2, characterized in that a beam body pre-embedded rib (9) is pre-embedded in the cross section direction in the movable beam end (8) and the fixed beam end or the abutment (11), and the beam body pre-embedded rib (9) is fixedly connected with the bottom of the U-shaped bolt (4).
6. The comb-tooth type expansion joint device for bridge with anti-loose function according to claim 1 or 2, characterized in that a penetrating rib (10) is embedded in the movable beam end (8) and the fixed beam end or the abutment (11) along the longitudinal direction, and the penetrating rib (10) is fixedly connected with the bottom of the U-shaped bolt (4).
7. The bridge comb-tooth type expansion joint device with the anti-loosening function according to claim 1 or 2, wherein the movable beam end (8) and the top of the fixed beam end or the bridge abutment (11) are both provided with grooves with a certain depth, the movable comb-tooth plate (1) is arranged in the grooves of the movable beam end (8), and the fixed comb-tooth plate (7) is arranged in the grooves of the fixed two ends or the bridge abutment (11).
8. The bridge comb-tooth type expansion joint device with the anti-loosening function according to claim 1 or 2, wherein a stainless steel plate (6) is arranged between the fixed beam end or bridge abutment (11) and the fixed comb-tooth plate (7).
9. The bridge comb-type expansion joint device with the anti-loosening function according to claim 8, wherein the movable comb plate (1) spans a gap between the movable beam end (8) and the fixed beam end or bridge abutment (11), extends onto the stainless steel plate (6), and can slide along the stainless steel plate (6).
10. The comb-tooth type expansion joint device for bridge with anti-loose function according to claim 9 is characterized in that a waterproof glue (5) is arranged in the gap between the movable beam end (8) and the fixed beam end or the abutment (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985703.2U CN210946475U (en) | 2019-06-27 | 2019-06-27 | Bridge comb-tooth type expansion joint device with anti-loosening function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985703.2U CN210946475U (en) | 2019-06-27 | 2019-06-27 | Bridge comb-tooth type expansion joint device with anti-loosening function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210946475U true CN210946475U (en) | 2020-07-07 |
Family
ID=71388216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920985703.2U Active CN210946475U (en) | 2019-06-27 | 2019-06-27 | Bridge comb-tooth type expansion joint device with anti-loosening function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210946475U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175471A (en) * | 2021-05-14 | 2021-07-27 | 常熟理工学院 | U-shaped bolt assembly with strong stability for mechanical configuration |
-
2019
- 2019-06-27 CN CN201920985703.2U patent/CN210946475U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175471A (en) * | 2021-05-14 | 2021-07-27 | 常熟理工学院 | U-shaped bolt assembly with strong stability for mechanical configuration |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU608029B2 (en) | Bridge deck | |
| CN210946475U (en) | Bridge comb-tooth type expansion joint device with anti-loosening function | |
| CN109930480B (en) | Hidden anchor cantilever beam type comb-tooth bridge expansion device | |
| EP0223897A1 (en) | Fastening device for rails | |
| CN110258319B (en) | Self-adaptive horizontal corner shear tenon | |
| CN210031492U (en) | Vertical stop device of carbon fiber rope of middle and small span girder bridge | |
| CN216199723U (en) | High-strength corrosion-resistant check bolt assembly for automobile | |
| US4386736A (en) | Electrically insulated rail joint connection | |
| JP4143935B2 (en) | Vertical rib composite floor slab | |
| DE2121981C3 (en) | Bridging device for expansion joints in bridges or the like. Structures | |
| WO2006011055A2 (en) | Attachment of components to composite materials | |
| RU2725438C2 (en) | Transient structure covering structural junction | |
| CN209891055U (en) | Hidden anchor cantilever beam type comb-tooth bridge expansion device | |
| CN200949209Y (en) | Prestressed expansion joint device | |
| CN215444735U (en) | Anti-loosening nut assembly | |
| CN210657975U (en) | Expansion joint device with non-motor vehicle sinking prevention function | |
| KR102212014B1 (en) | Finger joint for bridge comprising finger plate release prevention structure | |
| KR102356049B1 (en) | Expansion joints for bridge | |
| CN217104698U (en) | Bridge expansion piece fastening device | |
| RU51960U1 (en) | TRACK VEHICLE SUPPORT ROLLER | |
| CN210262694U (en) | Noise reduction expansion joint | |
| EP0332954B1 (en) | Corrosion proof metallic joining element | |
| EP2363529A2 (en) | System for attaching a rail | |
| JPH0115702Y2 (en) | ||
| CN210660994U (en) | Anti-seismic anti-falling high-strength bolt assembly for railway bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220215 Address after: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee after: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. Address before: 430084 No. nine Wu Dong Street, Qingshan District, Hubei, Wuhan Patentee before: WUHAN HIRUN ENGINEERING EQUIPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Address before: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |