CN113944101A - Three-dimensional displacement non-bolt dustproof comb-tooth type expansion joint - Google Patents

Abstract

The invention discloses a dustproof bolt-free multidirectional displacement comb tooth seam which comprises an auxiliary toothed plate, a dustproof rubber strip, a middle toothed plate, a stainless steel plate, a displacement storage box, a main toothed plate, a drainage system, a multidirectional displacement system, an anchoring plate, a chain support assembly and the like. Drainage system is independent of broach seam centre joint bottom, but independent installation, the waterstop is changed on the harmless road surface, this expansion joint is the flexible gap of the flexible control bridge of multi-beam equipartition, avoid causing the bridge floor expansion joint clearance too big because of the flexible volume of bridge, injury and traffic accident to passing vehicle tire, broach seam overall structure does not have the bolt installation and has avoided all not hard up bridge harm and the driving safety that arouses the expansion joint harm to cause by the bolt, the multi-direction displacement of the whole all-round reply natural stress to the bridge obtains effectual release, protect the bridge to avoid the damage, there is very big lifting action to the bridge life-span, maintenance cost reduction to the later stage expansion joint.

Description

Three-dimensional displacement non-bolt dustproof comb-tooth type expansion joint

Technical Field

The invention relates to the technical field of bridge structures and buildings, in particular to a three-dimensional displacement bolt-free dustproof comb-tooth type expansion joint.

Background

In modern bridge construction, the expansion joint device is an important component of a bridge, and the reasonability of the performance structure design directly influences the bridge stability and service life of the expansion performance of the bridge, and the comfort and safety guarantee of vehicle passing. But because of the natural temperature change, the vehicle load and the displacement of the girder end of the main girder, the characteristic related to the expansion with heat and the contraction with cold of the natural temperature, the conventional comb-tooth type expansion joint has single function in design, the expansion joint is composed of two plates of a main toothed plate and an auxiliary toothed plate, bolts are reinforced and fixed, the manufacturing process is simple, the installation procedure is simple and convenient, the bolts are easy to loosen, the maintenance cannot be in place in time due to the influence of the natural environment such as the maintenance route length and the like, the expansion joint of the bridge, the gap surface expansion teeth and the teeth have no sealing and protecting device and are easy to fall into the road garbage such as foreign matters and the like, if the road garbage cannot be cleaned in time, the expansion joint is blocked in the middle of the tooth gap of the comb-tooth gap, the energy accumulated by the expansion with heat and the contraction with cold of the natural temperature of the bridge cannot be effectively released, and the expansion joint damage and the bridge cause the potential safety hazard and the traffic accidents every year, for example, the common comb-tooth expansion joint is fixedly installed by the bolts, due to various reasons such as continuous creep of the bridge, change of disturbance degree and the like, multi-directional displacement energy of the expansion joint cannot be effectively released and is distorted and deformed, and finally the fixing bolt is loosened, falls off and fails, so that the expansion joint with limited functions of the comb tooth joints of the bridge is lost, the damage of the expansion device of the bridge greatly affects the traffic safety and easily causes traffic accidents, and the later maintenance and replacement are extremely complex in construction, difficult to clean and long in maintenance time; the unequal broach seam one side perk that can make of subside of road surface and pier, the transverse bridge of beam slab also can cause the harm for the broach seam to the displacement, causes inconveniently for driving safety, and the bridge floor undulates and is uneven very easily to cause major incident, and the vehicle that produces from this simultaneously strikes the normal use that very easily harms the bridge main part repeatedly, and then increases the expansion joint of bridge and the life that the maintenance cost reduces the bridge is maintained to bridge beam supports.

Disclosure of Invention

The invention aims to solve the technical problems that aiming at the defects of the prior art, a three-dimensional displacement bolt-free dustproof comb tooth type expansion joint is provided, a sealing dustproof device is additionally arranged to effectively prevent foreign matters, gravels and highway garbage from entering the comb tooth expansion joint to block the tooth joint, the original structure of the comb tooth joint is improved, a universal displacement device is added to realize free displacement movement of a bridge in the vertical direction and the longitudinal direction and the transverse direction, a middle toothed plate and a central supporting beam, a displacement sliding support and a storage box device are additionally arranged at the middle positions of the original two telescopic toothed plates and the plates, a chain plate connecting device and a displacement sliding support for guaranteeing the expansion of the equal joint are added, a drainage system is improved to realize the replacement of a lossless pavement by traction, the invention changes the installation mode that the original bolts are easy to loosen and lose and adopts the fixed installation of an arc-shaped large anchoring plate, traffic accidents caused by bridge damage caused by the fact that bolts loosen nuts to lose all conventional comb tooth gaps are avoided.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: three-dimensional displacement does not have dustproof broach formula expansion joint of bolt, it includes:

the telescopic tooth type tooth fixing device comprises a fixed end auxiliary toothed plate, a middle toothed plate and a telescopic end main toothed plate, wherein the fixed end auxiliary toothed plate and the middle toothed plate are respectively arranged on two sides of the middle toothed plate, at least one middle toothed plate is arranged on the middle toothed plate, wave-shaped comb tooth expansion joints are arranged at junctions among the fixed end auxiliary toothed plate, the middle toothed plate and the telescopic end main toothed plate, and a plurality of anchoring plates are respectively and uniformly arranged on the outer sides of the fixed end auxiliary toothed plate and the telescopic end main toothed plate;

the dustproof rubber strip is filled in a corrugated comb expansion joint between the fixed end auxiliary toothed plate and the telescopic end main toothed plate or between a plurality of middle toothed plates, fixed grippers are uniformly arranged on two sides of the dustproof rubber strip, and fixing holes matched with the fixed grippers are formed in the inner sides of the fixed end auxiliary toothed plate or the telescopic end main toothed plate or the middle toothed plate;

the stainless steel plate is welded below the fixed end auxiliary toothed plate;

the displacement storage box is welded below the fixed end auxiliary toothed plate and the telescopic end main toothed plate, two displacement storage boxes are respectively positioned at two ends of the dustproof rubber strip, a chain and a support beam are arranged in the middle below the middle toothed plate, and the chain is used for connecting the fixed end auxiliary toothed plate, the middle toothed plate and the telescopic end main toothed plate;

drainage system, drainage system comprises fixed bolster, fixed steel bar and can pull the waterstop, fixed steel bar is U type and welding on the fixed bolster for the anchor, the slip joint in the inboard C type groove of fixed bolster in both sides that can pull the waterstop, and joint department embeds there is traction wire rope.

Further, still include the multidirectional system that shifts, the multidirectional system that shifts includes concave type fixed block, adapter sleeve, bolt, fixed pipe, pivot and vertical axis, the vertical axis is installed in the preformed hole of the expansion end of flexible end owner pinion rack, concave type fixed block one end is the semicircle arcuation and cup joints on the vertical axis to nut lock through vertical axis one end dies, the concave type fixed block other end punch and with the adapter sleeve between by bolted connection, fixed pipe welding is at the stiff end of flexible end owner pinion rack, the fixed pipe and the adapter sleeve that the interval set up are passed in proper order in the pivot.

Furthermore, the anchoring plate is correspondingly provided with a steel bar penetrating hole for fixing the steel bar.

Furthermore, the vertical cross section of the dustproof rubber strip is multi-arch.

Furthermore, all install the protection box additional outside displacement volume bin, chain and the multidirectional system that shifts and be used for preventing the concrete erosion.

Furthermore, the stainless steel plate is provided with a welding hole or a telescopic movable hole matched with the displacement storage box or the chain.

Furthermore, the unilateral displacement volume bin includes both sides case and crossbeam, and both sides case welds respectively in stiff end auxiliary tooth board and flexible end owner pinion rack lower part, the mid portion of crossbeam passes through the support and the gallows is connected with well pinion rack.

Specifically, as shown in fig. 1 and 2, wherein the teeth of the comb tooth seam are in a waveform, the dustproof rubber strip is arranged in the middle of the waveform teeth of the comb tooth seam, holes are formed in the specific positions of the teeth and used for installing the cylindrical grippers of the dustproof rubber strip, the rubber strip is in a multi-arch shape at ordinary times, and the rubber strip is internally provided with a metal framework which is vulcanized into a whole, so that the gaps of the toothed plate can be effectively prevented from being blocked by gravel waste and other road garbage. As the size of the comb tooth gap increases, the number of the middle tooth plates increases accordingly (as shown in fig. 5, the size is one larger, and other larger sizes are not listed in the drawings one by one), and the middle tooth plates are similar to the middle beams of the modular expansion joint.

The displacement volume bin is installed at the both ends of broach seam its width direction, mid-mounting chain and a supporting beam structure, displacement volume bin structure is the same with the flexible seam displacement case of modulus, both sides case welds respectively on main pinion rack and vice pinion rack, the mid portion of crossbeam passes through support and gallows and well pinion rack and links together, the existence of displacement volume bin and chain makes broach seam main pinion rack and vice pinion rack and well pinion rack closely link integratively, can not cut apart, it can be more steady to move like this in the flexible displacement of reality, the control in gap also can be more even. In addition, the protection box is additionally arranged on the displacement storage box and the outer side of the chain to prevent concrete from corroding the internal structure. The stainless steel plate is welded below the auxiliary teeth of the comb plate, and the size of the stainless steel plate is mainly related to the type of the comb slot.

The drainage system consists of a fixed support and a towable water stop, a fixed reinforcing steel bar with U-shaped threads is welded on a fixed frame of the water stop, and two ends of the water stop are provided with vulcanized towable steel wire ropes. The drainage system is independent of comb tooth seams, is independently installed, and can be replaced by dragging an undamaged pavement after being damaged. The multidirectional system that shifts is installed in main pinion rack centre joint department, by concave type fixed block, the adapter sleeve, the bolt, fixed pipe, the apparatus further comprises a rotating shaft, vertical axis and protection box, vertical axis installs in the preformed hole of main pinion rack expansion end (also can install at the stiff end, see fig. 6), the consent welding, concave type fixed block cover is on vertical axis, nut lock through the vertical axis in below dies, concave type fixed block one end is the semicircle arcuation, the other end punches and is connected by high strength bolt between the adapter sleeve, fixed pipe welding is at main pinion rack stiff end, the pivot passes fixed pipe and adapter sleeve, thereby make main pinion rack become a whole, protection box prevents that concrete from corroding the multidirectional subassembly that shifts, also provide the free space for the multidirectional shifting of broach seam. The anchoring plate is welded on the comb tooth seam, is in an arch shape and is also provided with a rib penetrating hole, and the full-length reinforcing steel bar penetrates into the expansion joint after the expansion joint is installed, so that the expansion joint is integrally and firmly grabbed.

Compared with the prior art, the invention has the advantages that:

1. install the dustproof adhesive tape in wave form broach expansion joint can stretch out and draw back along with the expansion joint, and the dustproof adhesive tape of many arches occupies as much as possible space under the condition of same material, pack in the dustproof adhesive tape of wave form broach expansion joint make the grit waste material on the road surface, in rubbish etc. can't get into wave form broach expansion joint, more can not bore the below of plate joint, thereby play the dirt-proof effect of sand control, reduce the manpower and materials of maintaining the cost, also reduce the influence that wave form broach expansion joint caused bridge life, the practicality is improved.

2. The drainage system is independent of the existence of the comb tooth seams, has stable structure and can be independently installed, and can be replaced by dragging an undamaged road surface after being damaged, thereby greatly reducing the road occupation time and improving the maintenance efficiency.

3. The multi-directional displacement system can realize displacement in the vertical direction through rotation of the rotating shaft and the connecting sleeve, the connecting sleeve is connected with the concave fixing block to realize displacement in the transverse bridge direction, and conventional displacement in the longitudinal bridge direction can be completed by means of tooth gaps. And conventional broach seam can only realize the displacement of longitudinal bridge to, in case the bridge appears the road surface and subsides or transversely misplaces, the broach seam just can perk one side or the pinion rack misplaces each other, and even the disconnected broach of something more can seriously influence flexible function. Therefore, the application range of the telescopic device can be widened by the multi-directional displacement system, and a large amount of inevitable disasters are reduced.

4. According to the invention, the arc-shaped large anchoring plate is adopted to fix the comb tooth seams, so that various disasters caused by the breakage, falling or failure of bolts are avoided, the bolt-free installation is firmer, and the shock resistance and the stability are better.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic top view of the present invention.

FIG. 3 is a schematic diagram of the vertical cross-sectional structure of the multi-directional indexing system of the present invention.

FIG. 4 is a schematic structural view of section A in FIG. 3 according to the present invention.

Fig. 5 is a schematic view of a plurality of intermediate toothed plates according to the present invention.

FIG. 6 is a schematic view of another embodiment of the multi-directional indexing system of the present invention.

FIG. 7 is a schematic view of the structure of the dustproof rubber strip of the present invention.

As shown in the figure: 1. fixing end auxiliary toothed plates; 2. a dustproof adhesive tape; 3. a middle toothed plate; 4. a stainless steel plate; 5. a displacement amount storage box; 6. a main toothed plate at the telescopic end; 7. a drainage system; 8. a multi-directional deflection system; 9. an anchoring plate; 10. a chain; 11. fixing the hand grip; 12. fixing a bracket; 13. fixing the steel bars; 14. a towable water stop; 15. a concave fixed block; 16. connecting sleeves; 17. a bolt; 18. a fixed tube; 19. a rotating shaft; 20. a vertical axis.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.

The present invention will be described in further detail with reference to the accompanying drawings.

In specific implementation, the comb tooth joint is composed of an auxiliary toothed plate 1, a dustproof rubber strip 2, a middle toothed plate 3, a stainless steel plate 4, a displacement storage box 5, a main toothed plate 6, a drainage system 7, a multidirectional displacement system 8, an anchoring plate 9, a chain support assembly 10 and the like, wherein the anchoring plate 9 is welded at two ends of the auxiliary toothed plate 1 and the main toothed plate 6 respectively and is uniformly arranged, and reinforcing steel bars can be inserted into the reinforcing steel bar penetrating holes after construction site installation is completed, so that the whole comb tooth joint is firmer. The dustproof rubber strips 2 (shown in fig. 7) are arranged in the wave-shaped tooth seams between the main toothed plate 6 and the auxiliary toothed plates 1 and the middle toothed plate 3, and the toothed plates on the two sides are provided with holes with specific quantity and size for installing the fixed grippers of the dustproof rubber strips 2. The dustproof adhesive tape 2 of many arches occupies space as much as possible under the condition of the same materials, fills in the dustproof adhesive tape 2 of waveform broach expansion joint makes grit waste material, rubbish etc. on the road surface can't get into the waveform broach expansion joint in, more can not bore the below of plate joint to play the effect of dustproof sand control, reduce the manpower and materials of maintaining the cost.

The displacement storage box 5 and the chain 10 are welded below the comb plate, and the protection box is additionally arranged on the outer side to prevent concrete from corroding internal structures. Stainless steel plate 4 welds in the below of vice pinion rack 1, and the size of stainless steel mainly is related with the broach seam model, and in the place that displacement volume bin 5 and chain 10 part need be connected with the broach board, should reserve on the stainless steel that corresponding hole is convenient for weld and carry out the activity of stretching out and drawing back.

The drainage system 7 is composed of a fixed support 12, fixed steel bars 13 and a towable water stop 14, wherein the fixed steel bars 13 are bent into a U shape and welded on the fixed support 12 to play a role in anchoring. The steel wire ropes vulcanized into the rubber are arranged at the two ends of the towable water stop 14, the steel wire ropes enable the rubber strips to be firmer integrally and better in toughness, and the tractor is more uniformly stressed during towing. The fixed support is made of deformed steel and is machined by a professional machine, and the rubber strip cannot be separated after being pulled into the C-shaped groove, so that the waterproof effect is achieved.

And finally, a multidirectional shifting system 8 (as shown in fig. 3 and 4) which is composed of a concave fixed block 15, a connecting sleeve 16, a bolt 17, a fixed pipe 18, a rotating shaft 19, a vertical shaft 20 and a protective box, wherein the vertical shaft 20 is installed in a reserved hole at the movable end of the main toothed plate, a hole is welded, the concave fixed block 15 is sleeved on the vertical shaft 20 and is locked by a nut of the vertical shaft below, one end of the concave fixed block 15 is in a semicircular arc shape, the other end of the concave fixed block 15 is punched and connected with the connecting sleeve 16 through the high-strength bolt 17, the fixed pipe 18 is welded at the fixed end of the main toothed plate, the rotating shaft 19 penetrates through the fixed pipe 18 and the connecting sleeve 16, so that the main toothed plate is integrated, the protective box is a component for preventing concrete from corroding multidirectional shifting, and a movable space is provided for multidirectional shifting of the toothed slot. The above is the main structure embodiment of the present invention.

The main working principle of the invention is as follows: the bolt is thoroughly got rid of to the broach seam, uses the anchor board fixed, has solved ordinary broach seam because the bolt is not hard up or the harm that drops and cause. The comb teeth seam can move in the vertical direction, the longitudinal direction and the transverse direction to a certain extent by adopting the wave-shaped teeth and the multidirectional displacement system, and can be reset. The drainage system runs independently and can be installed independently by traction without damaging the pavement. The dustproof rubber strip is characterized in that the two sides of the rubber strip in a multi-arch shape are embedded in holes formed in comb tooth seams through cylindrical rubber blocks, and the surfaces of the holes are sealed after installation to prevent falling. The multi-arch rubber strips occupy more space as much as possible on the premise of occupying materials as little as possible, so that gravel waste garbage and the like on the road surface can not enter the interdental gaps of the comb tooth gaps, and the dustproof effect is achieved.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (6)

1. Three-dimensional displacement does not have dustproof broach formula expansion joint of bolt, its characterized in that, it includes:

the fixed end auxiliary toothed plate (1), the middle toothed plate (3) and the telescopic end main toothed plate (6) are respectively arranged on two sides of the middle toothed plate (3), at least one middle toothed plate (3) is arranged on the middle toothed plate, wave-shaped comb expansion joints are arranged at junctions among the fixed end auxiliary toothed plate (1), the middle toothed plate (3) and the telescopic end main toothed plate (6), and a plurality of anchoring plates (9) are respectively and uniformly arranged on the outer sides of the fixed end auxiliary toothed plate (1) and the telescopic end main toothed plate (6);

the dustproof rubber strip (2) is filled in a waveform comb expansion joint between the fixed end auxiliary toothed plate (1) and the telescopic end main toothed plate (6) or between a plurality of middle toothed plates (3), fixed grippers (11) are uniformly arranged on two sides of the dustproof rubber strip (2), and fixing holes matched with the fixed grippers (11) are formed in the inner sides of the fixed end auxiliary toothed plate (1) or the telescopic end main toothed plate (6) or the middle toothed plate (3);

the stainless steel plate (4) is welded below the fixed end auxiliary toothed plate (1);

the displacement storage box (5) is welded below the fixed end auxiliary toothed plate (1) and the telescopic end main toothed plate (6), two displacement storage boxes (5) are respectively positioned at two ends of the dustproof rubber strip (2), a chain (10) and a supporting beam are arranged in the middle of the lower portion of the middle toothed plate (3), and the chain (10) is used for connecting the fixed end auxiliary toothed plate (1), the middle toothed plate (3) and the telescopic end main toothed plate (6);

drainage system (7), drainage system (7) comprises fixed bolster (12), fixed steel bar (13) and can pull waterstop (14), fixed steel bar (13) are the U type and weld on fixed bolster (12) for the anchor, the both sides slip joint that can pull waterstop (14) is in the inboard C type groove of fixed bolster (12), and joint department embeds there is traction wire rope.

2. The three-dimensional displacement bolt-free dustproof comb-tooth type expansion joint according to claim 1, characterized in that: still include multidirectional system (8) that shifts, multidirectional system (8) that shifts includes concave type fixed block (15), adapter sleeve (16), bolt (17), fixed pipe (18), pivot (19) and vertical axis (20), install in the reservation of the expansion end of flexible end owner pinion rack (6) vertical axis (20), concave type fixed block (15) one end is the semicircle arc and cup joints on vertical axis (20) to nut lock through vertical axis (20) one end dies, concave type fixed block (15) other end punch and be connected by bolt (17) between adapter sleeve (16), fixed pipe (18) welding is at the stiff end of flexible end owner pinion rack (6), pivot (19) pass fixed pipe (18) and adapter sleeve (16) that the interval set up in proper order.

3. The three-dimensional displacement bolt-free dustproof comb-tooth type expansion joint according to claim 1, characterized in that: and the anchoring plate (9) is correspondingly provided with a reinforcing bar penetrating hole for fixing a reinforcing bar.

4. The three-dimensional displacement bolt-free dustproof comb-tooth type expansion joint according to claim 1, characterized in that: the vertical section of the dustproof rubber strip (2) is in a multi-arch shape.

5. The three-dimensional displacement bolt-free dustproof comb-tooth type expansion joint according to claim 1, characterized in that: the outside of the displacement storage box (5), the chain (10) and the multidirectional displacement system (8) is provided with a protective box for preventing concrete erosion.

6. The three-dimensional displacement bolt-free dustproof comb-tooth type expansion joint according to claim 1, characterized in that: the stainless steel plate (4) is provided with a welding hole or a telescopic movable hole matched with the displacement storage box (5) or the chain (10).

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