CN210288098U - Bridge expansion joint dust-proof device and dust-proof shock-absorbing device thereof - Google Patents
Bridge expansion joint dust-proof device and dust-proof shock-absorbing device thereof Download PDFInfo
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- CN210288098U CN210288098U CN201921064976.XU CN201921064976U CN210288098U CN 210288098 U CN210288098 U CN 210288098U CN 201921064976 U CN201921064976 U CN 201921064976U CN 210288098 U CN210288098 U CN 210288098U
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Abstract
本实用新型公开了桥梁伸缩缝防尘装置，包括第一混凝土基部、第二混凝土基部、第一伸缩板和第二伸缩板以及形成在第一混凝土基部和第二混凝土基部之间的伸缩缝，第一伸缩板和第二伸缩板均具有固定端和防尘端，伸缩缝下方跨设有止水带，止水带的一端安装在第一混凝土基部上，止水带的另一端安装在第二混凝土基部上，还包括防尘板，防尘板跨设在伸缩缝上，且第一伸缩板的伸缩端端部和第二伸缩板的伸缩端端部均位于防尘板上方，第一混凝土基部和第二混凝土基部上均设置有限位装置，限位装置使得防尘板始终盖住伸缩缝，它还公开了桥梁伸缩缝防尘减震装置。本实用新型的有益效果是：它具有使用寿命长，行车舒适性高和桥梁运营成本低的优点。
The utility model discloses a dustproof device for bridge expansion joints, comprising a first concrete base, a second concrete base, a first expansion board and a second expansion board, and an expansion joint formed between the first concrete base and the second concrete base, Both the first telescopic plate and the second telescopic plate have a fixed end and a dust-proof end, a water stop is arranged under the expansion joint, one end of the water stop is installed on the first concrete base, and the other end of the water stop is installed on the first concrete base. The second concrete base also includes a dust-proof board, the dust-proof board is arranged across the expansion joint, and the telescopic end of the first expansion board and the telescopic end of the second expansion board are located above the dust-proof board. Limiting devices are arranged on both the concrete base and the second concrete base, and the limiting devices make the dust-proof plates cover the expansion joints all the time. The invention also discloses a dust-proof and shock-absorbing device for bridge expansion joints. The beneficial effect of the utility model is that it has the advantages of long service life, high driving comfort and low bridge operation cost.
Description
Technical Field
The utility model relates to a bridge maintenance technical field, especially bridge expansion joint dust keeper and dustproof damping device thereof.
Background
Bridge expansion joints: it is referred to that in order to meet the requirement of deck deformation, expansion joints are usually provided between two beam ends, between a beam end and an abutment, or at the hinge joint of a bridge. The expansion joint is required to be freely telescopic in two directions parallel to and perpendicular to the axis of the bridge, and the expansion joint is firm and reliable, and when a vehicle runs, the vehicle is smooth and free of sudden jump and noise; the rainwater and garbage soil can be prevented from infiltration and blocking; the installation, the inspection, the maintenance and the dirt elimination are all simple and convenient.
Because the bridge expansion joint directly bears the repeated action of wheel load, the very little unevenness of bridge floor can make its very big impact effect appear destroying under the car load effect, and the expansion joint exposes in the atmosphere for a long time, and service environment is comparatively abominable, is the most easily damaged and difficult position of repairing in the bridge structures.
Once the bridge expansion joint is damaged, a passerby feels uncomfortable and lacks the sense of safety, and the impact of a vehicle on an upper structure caused by the damage of the bridge expansion joint deteriorates the driving condition, influences the stress of a main structure of the bridge, reduces the service life of the bridge, and needs to be repaired or completely replaced at the moment, otherwise, the bridge expansion joint seriously influences normal traffic, causes economic loss and adverse effects of different degrees, and even endangers the safety of the bridge.
In fact, the damage to the expansion joint of the highway bridge in China is common and the situation is serious, and the replacement of the expansion joint becomes important content for daily maintenance and reinforcement of the bridge. When the expansion joint is replaced, traffic control is usually required, and particularly, high-grade roads have large traffic flow and high speed, which often causes poor social pressure and economic loss. Therefore, the design of the structural material and the quality control of the bridge expansion joint are well done, the service life of the bridge expansion joint is prolonged, and the replacement frequency of the bridge expansion joint is reduced, which is a technical problem to be solved urgently at present. Meanwhile, aiming at the characteristics of the highway bridge expansion joint, the quick replacement of the damaged bridge expansion joint is completed under the conditions that the traffic is not influenced or the influence on the durability and the usability of the expansion joint is reduced as far as possible, and the innovative replacement concept and mode are worthy of further research and thinking. The damage form of the bridge expansion joint must be inspected and the damage cause must be analyzed, and a corresponding reasonable construction method and traffic organization are selected according to the damage degree of the expansion joint, the road traffic volume and the bridge structure form. The maintenance and replacement of the bridge expansion joint adopt different measures according to the damage condition, sometimes only the cross joint material needs to be replaced, and sometimes the whole expansion joint device needs to be replaced. Generally, when the expansion joint device is repaired and replaced, the post-cast pavement layers on the two sides of the expansion joint device are also replaced.
Through the utility model discloses people's long-term research discovery, because the waterstop exposes for a long time, through blowing, after sunshine and drench, the service life that the waterstop is general is only 2-3 years, consequently, it is high to change the frequency, cause the bridge operation cost to increase, and the bridge receives the influence of weather, thermal deformation and cold contraction can take place for the bridge, consequently, the width at expansion joint can change along with the change of weather, if the expansion joint is 160, when 240 reaches the model of above size, when the vehicle passes through, the wheel sinks, can lead to the fact the impact to the expansion joint, and when leading to the vehicle to pass through the expansion joint, the vehicle shakes badly, influence the driving comfort.
SUMMERY OF THE UTILITY MODEL
The utility model provides a bridge expansion joint dust keeper causes the waterstop on solving prior art dust fall waterstopLoad increaseAnd the technical problems of serious aging of the water stop and short service life.
The utility model also provides a dustproof damping device of bridge expansion joint, when solving the expansion joint broad, the vehicle passes through the expansion joint shake severe, and the driving travelling comfort is low and waterstop life is not long technical problem.
The purpose of the utility model is realized through the following technical scheme: the bridge expansion joint dust-proof device comprises a first concrete base part, a second concrete base part, a first expansion plate, a second expansion plate and an expansion joint formed between the first concrete base part and the second concrete base part, wherein the first expansion plate and the second expansion plate are respectively provided with a fixed end and a dust-proof end, the fixed end of the first expansion plate is arranged on the first concrete base part, the fixed end of the second expansion plate is arranged on the second concrete base part, a water stop belt is arranged below the expansion joint in a spanning mode, one end of the water stop belt is arranged on the first concrete base part, the other end of the water stop belt is arranged on the second concrete base part, the bridge expansion joint dust-proof device also comprises the dust-proof plate, the dust-proof plate is arranged on the expansion joint in a spanning, and the end part of the telescopic end of the first telescopic plate and the end part of the telescopic end of the second telescopic plate are both positioned above the dust guard, and the first concrete base part and the second concrete base part are both provided with a limiting device which enables the dust guard to cover the expansion joint all the time.
Preferably, all be provided with the holding chamber between the flexible end of first expansion plate and the first concrete base and between second expansion plate and the second concrete base, the both ends of dust guard all are located the holding intracavity that corresponds.
Preferably, the limiting device comprises limiting blocks, the limiting blocks are arranged on the first concrete base portion and the second concrete base portion, limiting cavities are formed in the bottoms of the two ends of the dustproof plate, and the two limiting blocks are located in the corresponding limiting cavities respectively.
Preferably, the maximum moving distance of the limiting block in the limiting cavity is 1/2 of the width of the expansion joint, and the distance between the accommodating cavity and the dust guard is larger than or equal to the distance between the corresponding limiting block and the wall of the limiting cavity close to the middle part of the dust guard.
Preferably, anchor steel plates are buried in the first concrete base and the second concrete base, C-shaped steel plates are mounted on the anchor steel plates, the C-shaped steel plates stretch over the corresponding first concrete base and the corresponding second concrete base, the limiting blocks are mounted on the corresponding C-shaped steel plates, and clamping portions clamped in the C-shaped steel plates are arranged at two ends of the water stop belts.
Bridge expansion joint damping device that prevents dust, including bridge expansion joint dust keeper, the middle part of dust guard is provided with shock attenuation lug, and the minimum interval between the dustproof end of first expansion plate and the shock attenuation lug is greater than 0mm, and the minimum interval between the dustproof end of second expansion plate and the shock attenuation lug is greater than 0 mm.
Preferably, the minimum distance between the dustproof end of the first expansion plate and the shock absorption lug is 2-5 mm, and the minimum distance between the dustproof end of the second expansion plate and the shock absorption lug is 2-5 mm.
Preferably, the fixed end of the first expansion plate is fixedly mounted on the first concrete base through an anchor bolt, and the fixed end of the second expansion plate is fixedly mounted on the second concrete base through an anchor bolt or welding.
Preferably, the shock absorption lug is a trapezoidal lug with a small upper part and a large lower part, the telescopic ends of the first telescopic plate and the second telescopic plate are wedge-shaped surfaces, and gaps between the first telescopic plate and the shock absorption lug and between the second telescopic plate and the shock absorption lug are V-shaped.
Preferably, the surfaces of the first expansion plate, the second expansion plate and the shock absorption bump are flush with the road surface.
The utility model has the advantages of it is following:
1. the utility model discloses a stop device, can ensure that the expansion joint is covered to the dust guard, thereby make on the dust can't drop the waterstop and sunshine can not shine the waterstop, avoided a large amount of silt and water to enter into on the waterstop, reduce the load of waterstop, thereby avoided, the expansion joint is in the shrink in-process, torn because of having silt in the waterstop, silt in the waterstop has also been avoided simultaneously to occupy the expansion joint space, the flexible volume that leads to flexible volume diminishes, influence the normal flexible of bridge, and the waterstop can not insolate, thereby slowly reduce the ageing of waterstop, make the life-span of waterstop increase by a wide margin, compare with current bridge waterstop, its life can promote 6~8 years from 2~3 years, thereby the use cost of waterstop has been reduced, and the manpower that the waterstop was changed has been reduced, and the cost.
2. The utility model discloses be provided with shock bump on the dust guard for the vehicle is when passing through 160 types, 240 types and above expansion joint, and shock bump can reduce the subsidence volume of wheel, thereby reduces the shake of vehicle when passing through the expansion joint, plays the cushioning effect, thereby has improved the travelling comfort of driving.
Drawings
FIG. 1 is a schematic view of a dust-proof device for a bridge expansion joint
FIG. 2 is an enlarged view of the point I in FIG. 1
FIG. 3 is a schematic view of the structure of the dustproof and shock-absorbing device for the expansion joint of a bridge
FIG. 4 is an enlarged view of the point II in FIG. 2
FIG. 5 is a schematic view of the structure of a check belt
In the figure, 1-a first concrete base, 2-a second concrete base, 3-an anchoring steel plate, 4-a C-shaped steel plate, 5-a water stop belt, 6-a first expansion plate, 7-a dust guard plate, 8-a second expansion plate, 9-a limiting cavity, 10-a limiting block, 11-an accommodating cavity, 12-an expansion joint, 13-a shock absorption lug, 14-an anchor bolt and 15-a clamping part.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed in use, or the position or positional relationship which the skilled person conventionally understand, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific position, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, the dust-proof device for bridge expansion joints 12 includes a first concrete base 1, a second concrete base 2, a first expansion plate 6, a second expansion plate 8, and an expansion joint 12 formed between the first concrete base 1 and the second concrete base 2, wherein the first concrete base 1 and the second concrete base 2 are both cast with concrete, and when casting, reinforcing steel bars are embedded in the first concrete base 1 and the second concrete base 2, so as to increase the connection between the first concrete base 1 and the second concrete base 2 and the anchor steel plate 3Is connected withAnd further, before pouring, the anchoring steel plates 3 are respectively installed in pouring cavities of the first concrete base 1 and the second concrete base 2 to be poured, and after pouring is finished, the anchoring steel plates 3 are embedded in the first concrete base 1 and the second concrete base 2.
In this embodiment, the first expansion plate 6 and the second expansion plate 8 are both steel plates, the first expansion plate 6 and the second expansion plate 8 both have a fixed end and a dustproof end, the fixed end of the first expansion plate 6 is installed on the first concrete base 1, the fixed end of the second expansion plate 8 is installed on the second concrete base 2, when the expansion amount of the expansion joint is not large, such as 40-type expansion joint and 80-type expansion joint, preferably, the fixed end of the first expansion plate 6 is fixedly installed on the first concrete base 1 by welding through the anchor steel plate 3, the fixed end of the second expansion plate 8 is fixedly installed on the second concrete base 2 by welding through the anchor steel plate 3, and when the expansion amount of the expansion joint is large, such as 160-type expansion joint, the fixed end of the first expansion plate is fixedly installed on the first concrete base by the anchor bolt 14, the fixed end of the second expansion plate is fixedly installed on the second concrete base by the anchor bolt 14, preferably, the anchor bolts 14 are connected to the corresponding anchor steel plates 3.
In this embodiment, a water stop 5 is spanned below the expansion joint 12, one end of the water stop 5 is installed on the first concrete base 1, the other end of the water stop 5 is installed on the second concrete base 2, further, a C-shaped steel plate 4 is installed on the anchoring steel plate 3, the C-shaped steel plate 4 spans the corresponding first concrete base 1 and the corresponding second concrete base 2, preferably, the stopper 10 is installed on the corresponding C-shaped steel plate 4, when installing, preferably, the stopper 10 is welded on the C-shaped steel plate, as shown in fig. 5, the two ends of the water stop 5 are provided with clamping portions 15 clamped in the C-shaped steel plate 4, and the water stop 5 is installed in the corresponding clamping portions 15, so that the water stop 5 cannot fall off.
In this embodiment, the dust guard 7 is spanned on the expansion joint 12, and the end portion of the first expansion plate 6 and the end portion of the second expansion plate 8 are both located above the dust guard 7, and further, the dust guard 7 and the lower surface of the end portion of the first expansion plate 6 have a gap, and the gap is 0.5-1.5 mm, preferably, the gap is 1 mm.
In this embodiment, the first concrete base 1 and the second concrete base 2 are both provided with a limiting device, the limiting device enables the dust guard 7 to cover the expansion joint 12 all the time, further, the limiting device comprises limiting blocks 10, the first concrete base 1 and the second concrete base 2 are both provided with limiting blocks 10, the bottom of the two ends of the dust guard 7 is provided with limiting cavities 9, the two limiting blocks 10 are respectively located in the corresponding limiting cavities 9, the limiting blocks 10 can slide in the corresponding limiting cavities 9, therefore, when the first expansion plate 6 and the second expansion plate 8 are in the expansion process, the limiting blocks 10 move along with the corresponding first expansion plate 6 and the corresponding second expansion plate 8, so that the dust guard 7 can be ensured to cover the expansion joint 12, dust can not fall onto the water stop 5, and sunlight can not irradiate onto the water stop 5, thereby preventing a large amount of silt and water from entering the water stop 5, reduce waterstop 5's load, therefore, the expansion joint is at the in-process that diminishes having been avoided, waterstop cladding silt, when the expansion joint shrink, the waterstop is torn, and behind the waterstop cladding silt, silt can occupation space, thereby the flexible volume at expansion joint has been reduced, influence the normal flexible of bridge, and waterstop 5 can not insolate, thereby slow down the ageing of waterstop 5, make the life-span of waterstop 5 increase by a wide margin, compare with current bridge waterstop 5, its life can be from promoting 6~8 years to 2~3 years, thereby the use cost of waterstop 5 has been reduced, and the manpower that waterstop 5 was changed has been reduced, the material resources cost.
In this embodiment, the accommodating cavities 11 are disposed between the expansion end of the first expansion plate 6 and the first concrete base 1 and between the second expansion plate 8 and the second concrete base 2, and both ends of the dust-proof plate 7 are disposed in the corresponding accommodating cavities 11, further, a step is disposed on the lower surface of the expansion end of the first expansion plate 6 and the lower surface of the expansion end of the second expansion plate 8, and the step and the corresponding expansion end form the accommodating cavity 11, or a step is disposed on the first concrete base 1 and the second concrete base 2, and the accommodating cavity 11 can be formed between the step and the expansion end, and both ends of the dust-proof plate 7 are disposed in the corresponding accommodating cavities 11, so that a large amount of silt above the expansion joint 12 will be accumulated in the gap between the first expansion plate 6 and the second expansion plate 8, and because the bridge is designed to have a high middle and low sides and a gradient greater than 2%, consequently under the effect of rainwater, just can discharge silt from the gap both sides between first expansion plate 6 and the second expansion plate 8, realize concentrating the purpose of dust exhaust, it is further, the flexible end of first expansion plate 6 and second expansion plate 8 is the wedge, two wedge components V-arrangement, consequently, first expansion plate 6 and second expansion plate 8 are at flexible in-process, the wedge has the function of shovel husky, along with continuous flexible of first expansion plate 6 and second expansion plate 8, can concentrate sand grain gradually toward the gap middle part between first expansion plate 6 and the second expansion plate 8, be convenient for the concentrated emission of silt.
In this embodiment, the maximum moving distance of the limiting block 10 in the limiting cavity 9 is 1/2 of the width of the expansion joint 12, and the distance between the accommodating cavity 11 and the dust-proof plate 7 is greater than or equal to the distance between the corresponding limiting block 10 and the wall of the limiting cavity 9 close to the middle of the dust-proof plate 7, preferably, the distance between the accommodating cavity 11 and the dust-proof plate 7 is equal to the distance between the corresponding limiting block 10 and the wall of the limiting cavity 9 close to the middle of the dust-proof plate 7, in this way, after the dust-proof plate 7 contacts with the bottom of the accommodating cavity 11 in the moving process of the first expansion plate 6 or the second expansion plate 8, the bottom of the accommodating cavity 11 can apply a thrust to the dust-proof plate 7, so that the dust-proof plate 7 moves along with the corresponding first expansion plate 6 or the second expansion plate 8, and therefore the limiting block 10 is not required to apply a thrust to the dust-proof plate 7, thereby ensuring that the structures of the, avoid stopper 10 and spacing chamber 9 to warp to guaranteed the life in spacing chamber 9 of stopper 10, makeed dust guard 7 can long-term effectual use, reduced the maintenance number of times, reduced the operation cost of bridge.
If the width of the limiting block 10 is B and the maximum deformation of the bridge is L, the width of the limiting cavity 9 is BB+L/2When the bridge is installed, the expansion amount of the bridge on which the first concrete base 1 or the second concrete base 2 is installed is measured and calculated to be A, when A is the extension amount of the first concrete base 1 or the second concrete base 2, at the moment, the distance between the accommodating cavity 11 and the dust-proof plate 7 is L/4-A, the distance between the limiting block 10 and the cavity wall of the limiting cavity 9 close to the middle of the dust-proof plate 7 is L/4-A, when A is the contraction amount of the first concrete base 1 or the second concrete base 2 is A, the distance between the accommodating cavity 11 and the dust-proof plate 7 is L/4+ A, and the distance between the limiting block 10 and the cavity wall of the limiting cavity 9 close to the middle of the dust-proof plate 7 is L/4+ A.
Further, when the maximum deformation amount of the bridge is large, after the bridge is contracted, a large gap, such as a 160-type expansion joint, is left between the first expansion plate 6 and the second expansion plate 8, and after the bridge is in the maximum contraction amount, the width of the gap reaches over 160mm, when a wheel passes through the gap, the wheel will sink into the gap, thereby causing vehicle vibration and affecting driving comfort, and in the process of sinking the wheel, the wheel will impact the dust-proof plate 7, causing the dust-proof plate 7 to slide, deform and the like, so for an expansion joint 12 above 160 type, a bridge expansion joint dust-proof and shock-absorbing device is required, as shown in fig. 4 and 5, on the basis of the above bridge expansion joint dust-proof device, a shock-absorbing bump 13 is arranged in the middle of the dust-proof plate 7, the number of the shock-absorbing bump 13 is determined according to the size of the expansion joint 12, and for the expansion joint 12 above 160 type, shock bump 13 only need one can, it is further, the minimum interval between the dustproof end of first expansion plate 6 and shock bump 13 is greater than 0mm, the minimum interval between the dustproof end of second expansion plate 8 and shock bump 13 is greater than 0mm, that is to say, after the bridge is in the maximum elongation, all have the clearance between first expansion plate 6 and shock bump 13 and between second expansion plate 8 and shock bump 13, consequently first expansion plate 6 and second expansion plate 8 can not support on shock bump 13, first expansion plate 6 has been avoided, second expansion plate 8 and dust guard 7 warp at the flexible in-process of bridge, preferably, the minimum interval between the dustproof end of first expansion plate 6 and shock bump 13 is 2~5mm, the minimum interval between the dustproof end of second expansion plate 8 and shock bump 13 is 2~5 mm.
In this embodiment, shock bump 13 is big end down's trapezoidal lug, and the flexible end of first expansion plate 6 and second expansion plate 8 is the wedge face, and the gap between first expansion plate 6 and second expansion plate 8 and shock bump 13 is the V-arrangement, and first expansion plate 6 and second expansion plate are flexible in-process, then can promote sand grain gradually toward shock bump 13 direction to be convenient for the centralized processing of sand grain.
In this embodiment, the surfaces of the first expansion plate 6, the second expansion plate 8 and the shock absorption bump 13 are all flush with the road surface, so that the shake is small when the vehicle passes through, and the driving comfort is guaranteed.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. Bridge expansion joint dust keeper, including first concrete basal portion, second concrete basal portion, first expansion plate and second expansion plate and formation first concrete basal portion with expansion joint between the second concrete basal portion, first expansion plate with the second expansion plate all has stiff end and dustproof end, the stiff end of first expansion plate is installed on the first concrete basal portion, the stiff end of second expansion plate is installed on the second concrete basal portion, the expansion joint below is striden and is equipped with the waterstop, the one end of waterstop is installed on first concrete basal portion, the other end of waterstop is installed on the second concrete basal portion, its characterized in that: still include the dust guard, the dust guard strides and establishes on the expansion joint, just the flexible end tip of first expansion plate with the flexible end tip of second expansion plate all is located the dust guard top, all be provided with stop device on first concrete basal portion and the second concrete basal portion, stop device makes the dust guard cover all the time the expansion joint.
2. The dust keeper for a bridge expansion joint of claim 1, wherein: the dust guard is characterized in that accommodating cavities are formed between the telescopic end of the first telescopic plate and the first concrete base and between the second telescopic plate and the second concrete base, and the two ends of the dust guard are located in the corresponding accommodating cavities.
3. The dust keeper for a bridge expansion joint of claim 2, wherein: the limiting device comprises limiting blocks, the limiting blocks are arranged on the first concrete base portion and the second concrete base portion, limiting cavities are formed in the bottoms of the two ends of the dustproof plate, and the limiting blocks are located in the corresponding limiting cavities respectively.
4. The dust keeper for a bridge expansion joint of claim 3, wherein: the stopper is in the biggest displacement distance of spacing intracavity is 1/2 of expansion joint width, and the holding chamber with the interval between the dust guard is more than or equal to the interval between the stopper that corresponds and the spacing chamber wall that is close to the dust guard middle part.
5. The dust keeper for a bridge expansion joint of claim 4, wherein: the first concrete basal portion with all bury underground in the second concrete basal portion and anchor the steel sheet, just all install C shaped steel on the anchor steel sheet, C shaped steel spanes on the first concrete basal portion that corresponds and on the second concrete basal portion, the stopper is installed and is corresponded on the C shaped steel sheet, the both ends of waterstop all are provided with the card and are in the card portion in the C shaped steel sheet.
6. Bridge expansion joint damping device that prevents dust, its characterized in that: the dustproof device for the bridge expansion joint comprises the dustproof device for the bridge expansion joint as claimed in any one of claims 1 to 5, wherein a damping lug is arranged in the middle of the dustproof plate, the minimum distance between the dustproof end of the first expansion plate and the damping lug is greater than 0mm, and the minimum distance between the dustproof end of the second expansion plate and the damping lug is greater than 0 mm.
7. The dustproof and shock-absorbing device for bridge expansion joints of claim 6, wherein: the minimum interval between the dustproof end of the first expansion plate and the shock absorption lug is 2-5 mm, and the minimum interval between the dustproof end of the second expansion plate and the shock absorption lug is 2-5 mm.
8. The dustproof and shock-absorbing device for bridge expansion joints of claim 7, wherein: the fixed end of the first expansion plate is fixedly arranged on the first concrete base through an anchor boltThe fixed end of the second expansion plate passes through an anchor boltOr welding Is connected withIs fixedly mounted on the second concrete base.
9. The dustproof and shock-absorbing device for bridge expansion joints according to claim 6 or 8, wherein: shock attenuation lug is big end down's trapezoidal lug, the flexible end of first expansion plate and second expansion plate is the wedge face, just first expansion plate with gap between second expansion plate and the shock attenuation lug is the V-arrangement.
10. The dustproof and shock-absorbing device for bridge expansion joints of claim 9, wherein: the surfaces of the first expansion plate, the second expansion plate and the shock absorption convex blocks are flush with the road surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921064976.XU CN210288098U (en) | 2019-07-09 | 2019-07-09 | Bridge expansion joint dust-proof device and dust-proof shock-absorbing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921064976.XU CN210288098U (en) | 2019-07-09 | 2019-07-09 | Bridge expansion joint dust-proof device and dust-proof shock-absorbing device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN210288098U true CN210288098U (en) | 2020-04-10 |
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| CN201921064976.XU Active CN210288098U (en) | 2019-07-09 | 2019-07-09 | Bridge expansion joint dust-proof device and dust-proof shock-absorbing device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195408A (en) * | 2019-07-09 | 2019-09-03 | 汪小鹏 | Bridge expanssion joint dust guard and its dust-proof damping device |
-
2019
- 2019-07-09 CN CN201921064976.XU patent/CN210288098U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195408A (en) * | 2019-07-09 | 2019-09-03 | 汪小鹏 | Bridge expanssion joint dust guard and its dust-proof damping device |
| CN110195408B (en) * | 2019-07-09 | 2024-05-03 | 汪小鹏 | Bridge expansion joint dustproof device and dustproof damping device thereof |
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