CN112663490A - Shock attenuation and noise reduction integral welding formula fishback expansion joint - Google Patents
Shock attenuation and noise reduction integral welding formula fishback expansion joint Download PDFInfo
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- CN112663490A CN112663490A CN202011517681.0A CN202011517681A CN112663490A CN 112663490 A CN112663490 A CN 112663490A CN 202011517681 A CN202011517681 A CN 202011517681A CN 112663490 A CN112663490 A CN 112663490A
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- 238000003466 welding Methods 0.000 title claims abstract description 35
- 230000009467 reduction Effects 0.000 title claims description 9
- 230000035939 shock Effects 0.000 title claims description 7
- 238000004873 anchoring Methods 0.000 claims abstract description 33
- 238000003780 insertion Methods 0.000 claims description 22
- 230000037431 insertion Effects 0.000 claims description 22
- 239000002002 slurry Substances 0.000 claims description 18
- 230000000903 blocking effect Effects 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims 7
- 238000011065 in-situ storage Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 6
- 239000002390 adhesive tape Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 230000006872 improvement Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
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Abstract
The invention discloses a shock-absorbing noise-reducing integrally-welded expansion joint of a comb plate, belonging to the technical field of bridge expansion joints, wherein the expansion joint of the comb plate comprises a fixed toothed plate, a movable toothed plate and a bracket; the fixed toothed plate and the movable toothed plate are both supported on the bracket, the fixed toothed plate and the movable toothed plate are both fixed with an anchoring ring and welding nails, the anchoring rings are fixed on the outer side of the fixed toothed plate and the outer side of the movable toothed plate, and the welding nails are fixed at the bottoms of the fixed toothed plate and the movable toothed plate and are positioned on two opposite sides of the bracket; the bracket comprises a sliding backing plate, a pulp baffle and a waterproof adhesive tape, the fixed toothed plate and the movable toothed plate are supported on the sliding backing plate, the pulp baffle comprises a first pulp baffle and a second pulp baffle, the first pulp baffle is fixed on the sliding backing plate, a gap is formed between the first pulp baffle and the second pulp baffle, and the waterproof adhesive tape is located in the gap, at the top and below the movable toothed plate. The comb plate and the anchoring component are welded into a whole, so that the hidden danger that the bolt anchoring bolt is easy to loosen is avoided, and the construction efficiency is improved.
Description
Technical Field
The invention relates to the technical field of bridge expansion joints, in particular to a shock-absorbing noise-reducing integrally-welded comb plate expansion joint.
Background
At present, road construction in China increasingly emphasizes the influence of driving on the surrounding environment of roads, and the comb plate expansion joint has the characteristic that the noise is low when vehicles pass due to the fact that the wheels can continuously roll the road surface and the impact caused by the traditional mode secondary shrinkage groove is avoided due to the fact that the surface tooth-shaped staggered structure form of the comb plate expansion joint is adopted, and the comb plate expansion joint is widely applied to urban road construction. The expansion joints of the traditional comb plate produced by manufacturers in the JT/T327-2008 standard of the department of transportation and at the present stage of China are all plate-type structures of one meter and one block and are fixed by bolts. The product mainly has the following defects:
1. during installation, a toothed plate bracket is welded firstly, concrete is poured into the toothed plate bracket to level and install the toothed plate one by one, and the bolt is tightened again after the concrete is initially set, so that the efficiency is low during installation and the consumed time is long;
2. the existing expansion joint of the comb plate has natural weak shock resistance and difficult looseness prevention of bolt fastening, and the problem of association does not exist between plates, so that the expansion joint of the comb plate vibrates with high frequency generated by continuous circulation of vehicles, the anchoring bolt is easy to loosen, the expansion joint of the comb plate is damaged in large quantity, safety accidents are easy to bring, and the maintenance cost is high.
In view of the above, the invention provides a vibration/noise reduction integral welding type expansion joint of a comb plate.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a shock-absorbing noise-reducing integrally-welded comb plate expansion joint.
In order to achieve the purpose, the invention provides the following technical scheme:
an expansion joint of a shock-absorbing and noise-reducing integrally-welded comb plate comprises a fixed toothed plate, a movable toothed plate and a bracket;
the fixed toothed plate and the movable toothed plate are both supported on the bracket, the fixed toothed plate and the movable toothed plate are both fixed with an anchoring ring and welding nails, the anchoring ring is fixed on the outer side of the fixed toothed plate and the outer side of the movable toothed plate, and the welding nails are fixed at the bottoms of the fixed toothed plate and the movable toothed plate and are positioned on two opposite sides of the bracket;
the bracket comprises a sliding backing plate, a pulp blocking plate and a waterproof adhesive tape, the fixed toothed plate and the movable toothed plate are supported on the sliding backing plate, the pulp blocking plate comprises a first pulp blocking plate and a second pulp blocking plate, the first pulp blocking plate is fixed on the sliding backing plate, a gap is formed between the first pulp blocking plate and the second pulp blocking plate, and the waterproof adhesive tape is located at the top in the gap and located below the movable toothed plate.
More preferably: the novel cast-in-place concrete sliding base plate is characterized in that a sliding base plate anchor ring and transverse steel bars are arranged at the bottom of the sliding base plate, the sliding base plate anchor ring is fixed at the bottom of the sliding base plate, and the transverse steel bars are located in the sliding base plate anchor ring and are embedded in cast-in-place concrete.
More preferably: the movable toothed plate is characterized in that a positioning rod is fixed at the bottom of the movable toothed plate, an inserting piece and a limiting piece are arranged on the pulp baffle, the positioning rod is matched with the inserting piece in an inserting mode, and the inserting piece is matched with the limiting piece in an inserting mode.
More preferably: the inserting piece comprises a transverse movable rod, a vertical movable rod and a fixed head;
the lower end of the vertical movable rod is fixed with one end of the transverse movable rod, the upper end of the vertical movable rod is provided with a positioning groove matched with the positioning rod, the upper end of the positioning rod is fixed at the bottom of the movable toothed plate, and the lower end of the positioning rod is inserted into the positioning groove;
one end of the transverse movable rod is fixed with the vertical movable rod, the other end of the transverse movable rod penetrates through the second slurry baffle and is fixed with the fixed head, one side, far away from the transverse movable rod, of the plug is provided with a slot, and the limiting part is inserted into the slot.
More preferably: the limiting piece is positioned between the first slurry baffle and the second slurry baffle and comprises a first inserting rod, a first spring, a positioning ring, a fixed rod and a plug;
one end of the inserting rod is fixed on the first slurry baffle, the other end of the inserting rod extends towards the direction close to the second slurry baffle and is fixed with the fixing rod, one end of the fixing rod is fixed with the inserting rod, the other end of the fixing rod is fixed with the plug, and the plug is inserted into the inserting slot;
the first spring is sleeved on the circumferential surface of the inserted bar and tightly propped between the first slurry baffle and the positioning ring, and the positioning ring is in contact with the fixing head.
More preferably: the fixing head is provided with a locking piece, and the locking piece comprises an accommodating groove, an end head, a connecting rod, a second spring and a locking block;
the accommodating groove is positioned on the side wall of the slot and communicated with the slot, the axial direction of the accommodating groove is perpendicular to the axial direction of the slot, the locking block is positioned in the accommodating groove, one end of the connecting rod is fixed with the locking block, the other end of the connecting rod extends in the direction away from the slot and penetrates through the fixing head, and the end head is positioned outside the fixing head and fixed with the outer end of the connecting rod;
the second spring is positioned in the accommodating groove, is sleeved on the circumferential surface of the connecting rod and tightly abuts against the locking block and the bottom in the accommodating groove;
the locking piece is close to slot one side is outside convex cambered surface, the plug is hemispherical and outer cambered surface towards the bottom in the slot, the inserted bar is close to the corner of plug one end is rounding off, plug outer cambered surface and inserted bar rounding off be used for with the cambered surface contact of locking piece, so that the locking piece to the bottom direction removes in the holding tank.
More preferably: and a supporting plate is fixed on one side of the second slurry baffle, which is far away from the first slurry baffle, and the transverse movable rod is supported on the supporting plate and is in sliding fit with the supporting plate.
More preferably: the positioning ring is arranged on the inserted bar in a sliding mode along the length direction of the inserted bar.
More preferably: the waterproof rubber strip is in a semi-circular arc sheet shape, and the inner arc surface faces upwards.
More preferably: the anchor ring with the welding nail all is provided with a plurality ofly, and is a plurality of the anchor ring with the welding nail is respectively along the length direction of horizontal reinforcing bar is equidistant to be arranged.
In conclusion, the invention has the following beneficial effects: compared with the traditional comb plate, the invention combines the advantage of strong anchorage of the modulus expansion joint, optimizes the bolt bracket of the common comb plate into the double fixing mode of an anchoring component (an anchoring ring, a sliding pad plate anchor ring) and a welding nail, improves the defects that the common comb plate is easy to loosen and lose efficacy when the bolt is repeatedly impacted and vibrated by the load of a travelling crane, and leads the expansion device and the bridge body to form an integral anchoring effect system; the invention cancels the rubber-amine plate between the lower sliding base plate of the common comb plate and the concrete, and is coated with hot asphalt (2mm), thereby playing the roles and the effects of shock absorption and noise reduction; the sliding base plate and the fixed toothed plate are fixed by spot welding, and the length of the sliding base plate is only in a working area and does not exceed the anchoring end; the welding nails are welded by an electric arc stud welding machine, so that the anchoring property is enhanced. Because the characteristics of arc stud welding, the weld nail forms melting and welding pond with fixed tooth plate, movable tooth plate surface, and the weld nail forms wholly with fixed tooth plate, movable tooth plate after the cooling, and it is than ordinary electric welding joint strength improvement greatly.
Drawings
Fig. 1 is a schematic structural view of the embodiment, which is mainly used for embodying the overall structure of the expansion joint of the comb plate;
fig. 2 is a schematic top view of the embodiment, which is mainly used for embodying the structure of the expansion joint of the fishback;
fig. 3 is a schematic side view of the embodiment, mainly used for embodying the matching structure between the fixed tooth plate, the movable tooth plate and the bracket;
FIG. 4 is a schematic structural diagram of an embodiment, which is mainly used for embodying a matching structure between an insertion member and a limiting member;
fig. 5 is a schematic partial structure diagram of an embodiment, which is mainly used for embodying the structure of the position limiting element.
In the figure, 1, a toothed plate is fixed; 2. a movable toothed plate; 3. a bracket; 31. a slide backing plate; 321. a first baffle plate; 322. a second slurry baffle; 33. a waterproof adhesive tape; 34. a support plate; 35. inserting the piece; 351. a transverse movable rod; 352. a vertical movable rod; 353. positioning a groove; 354. a fixed head; 355. a slot; 356. a locking member; 3561. accommodating grooves; 3562. a tip; 3563. a connecting rod; 3564. a locking block; 3565. a second spring; 36. a limiting member; 361. inserting a rod; 362. a first spring; 363. positioning rings; 364. fixing the rod; 365. a plug; 37. a skid plate anchor ring; 38. transverse reinforcing steel bars; 4. an anchoring ring; 5. welding nails; 6. and (5) positioning the rod.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Example (b): an expansion joint of a vibration and noise reduction integrally welded comb plate is shown in figures 1-5 and comprises a fixed toothed plate 1, a movable toothed plate 2 and a bracket 3. The fixed tooth plate 1 and the movable tooth plate 2 are both supported on the bracket 3, comb teeth are arranged on the fixed tooth plate 1 and the movable tooth plate 2, and the fixed tooth plate 1 and the bracket 3 are welded and fixed. A certain distance is arranged between the fixed toothed plate 1 and the movable toothed plate 2, so that the comb teeth on the fixed toothed plate 1 are not in contact with the comb teeth on the movable toothed plate 2. And the fixed toothed plate 1 and the movable toothed plate 2 are respectively fixed with an anchoring ring 4 and a welding nail 5, and the anchoring ring 4 is fixed on the outer side of the fixed toothed plate 1 and the outer side of the movable toothed plate 2. The welding nail 5 is fixed in fixed pinion rack 1, 2 bottoms of swing pinion rack and is located the relative both sides of bracket 3, and welding nail 5 is close to fixed pinion rack 1, 2 outward flanges of swing pinion rack. The bracket 3 comprises a slide pad plate 31, a pulp baffle and a waterproof rubber strip 33. The bottom of the slide backing plate 31 is provided with a slide backing plate anchor ring 37 and a transverse steel bar 38, the slide backing plate anchor ring 37 is fixed at the bottom of the slide backing plate 31, and the transverse steel bar 38 is positioned in the slide backing plate anchor ring 37 and is embedded in cast-in-place concrete. The anchoring rings 4 and the welding nails 5 are provided with a plurality of anchoring rings 4 and welding nails 5 which are respectively arranged at equal intervals along the length direction of the transverse reinforcing steel bars 38. The length direction of the lateral reinforcing bars 38 is the same as the installation direction of the bracket 3.
In the technical scheme, the comb plate seams developed and produced by expansion joint manufacturers at home and abroad at present are mainly fastened by bolts, the existing improvements are only limited on the original basis to improve the vibration resistance, and the problems that the bolts are complex in the installation process, do not resist vibration and are easy to loosen are not fundamentally solved. Therefore, the expansion joint product without the bolts and with the continuous length and the continuous size of the comb plate is designed, the strength is greatly increased by adopting a welding and anchoring mode, concrete is directly poured after leveling and welding, the installation time and the cost are reduced, the service life is prolonged, and the later maintenance cost is reduced.
Referring to fig. 1 to 5, the fixed tooth plate 1 and the movable tooth plate 2 are supported on the sliding pad plate 31, and the slurry baffles include a first slurry baffle 321 and a second slurry baffle 322. First fender 321 is fixed on sliding backing plate 31, is provided with the gap between first fender 321 and the second fender 322, and waterproof rubber strip 33 is located the gap and installs the top between first fender 321 and second fender 322. Waterproof stripe 33 is located the pinion rack 2 below, and waterproof stripe 33 is half circular arc slice and interior cambered surface up. First fender 321 and second fender 322 are used for contacting with the cast-in-place concrete on gap both sides respectively, and waterproof stripe 33 is arranged in preventing rainwater or bridge infiltration from getting into the gap between first fender 321 and the second fender 322 through the clearance between fixed tooth plate 1, movable tooth plate 2 and the bracket 3. Has better waterproof function so as to prolong the service life of the bridge.
The invention mainly has the following characteristics:
1. the comb plate and the anchoring component (the anchoring ring 4 and the sliding pad plate anchoring ring 37) are welded into a whole, so that the hidden danger that the bolt anchoring bolt is easy to loosen is avoided;
2. the positioning bracket 3 does not need to be welded, so that the production and installation cost is reduced, and the construction efficiency is improved;
3. when the bridge is installed, the whole product or a long section of the product is horizontally arranged in a structural groove, and after the flatness is adjusted, the product is firmly welded with the embedded steel bar of the bridge body without secondary fastening;
4. after positioning, fixing and welding, pouring concrete at one time to form a firm whole with the bridge deck;
5. before the comb plate is installed, asphalt is coated on the contact parts of the lower parts of the fixed tooth plate 1 and the movable tooth plate 2 and concrete, so that the water resistance is enhanced, and the effects of shock absorption and noise reduction are achieved;
6. the comb plate is continuous steel plate more than 2 meters in length, has stopped that traditional comb plate one meter is relatively independent to lack interconnect and cause intensity on the low side.
Compared with the traditional comb plate, the invention combines the advantage of strong anchorage of the modulus expansion joint, optimizes the bolt bracket 3 of the common comb plate into double fixing modes of an anchoring component (an anchoring ring 4, a sliding pad plate anchoring ring 37) and a welding nail 5, improves the defects that the bolt used by the common comb plate is easy to loosen and lose efficacy due to repeated impact vibration of the crane load, and leads the expansion device and the bridge body to form an integral anchoring effect system; the invention cancels the rubber-amine plate between the lower sliding base plate 31 of the common comb plate and the concrete, and is coated with hot asphalt (2mm), thereby playing the roles and the effects of shock absorption and noise reduction; the sliding backing plate 31 and the fixed toothed plate 1 are fixed by spot welding, and the length of the sliding backing plate 31 is only in a working area and does not exceed an anchoring end; the welding nails 5 are welded by an arc stud welding machine, so that the anchoring property is enhanced. Because the characteristics of arc stud welding, weld nail 5 forms melting and weld pool with fixed tooth plate 1, movable tooth plate 2 surface, and weld nail 5 forms wholly with fixed tooth plate 1, movable tooth plate 2 after the cooling, and it is than ordinary electric welding joint strength improvement greatly.
Compared with the common comb plate, the bridge pre-embedded rib plate can be really welded with the bridge pre-embedded rib into a whole, and the anchoring strength is greatly improved. The installation rate is fast, improves the efficiency of construction, and the roughness is easily adjusted, has improved the driving travelling comfort. Compare 1 meters pinion rack, 2 meters have more improved the bulk strength, and the anchor effect is stronger. The product does not need to be regularly checked in the service life cycle, and the heavy maintenance behavior brought by fastening bolts for many times in the use process and the construction safety problem brought by the heavy maintenance behavior can be avoided.
Referring to fig. 1-5, a positioning rod 6 is fixed at the bottom of the movable toothed plate 2, an inserting member 35 and a limiting member 36 are arranged on the pulp blocking plate, the positioning rod 6 is inserted and matched with the inserting member 35, and the inserting member 35 is inserted and matched with the limiting member 36. The insert 35 includes a lateral movable bar 351, a vertical movable bar 352, and a fixed head 354. The lower end of the vertical movable rod 352 is integrally connected with one end of the horizontal movable rod 351, and the upper end of the vertical movable rod is provided with a positioning groove 353 matched with the positioning rod 6. The upper end of the positioning rod 6 is fixed at the bottom of the movable toothed plate 2, and the lower end of the positioning rod is inserted into the positioning groove 353. One end of the horizontal movable rod 351 is fixed with the vertical movable rod 352, and the other end passes through the second baffle 322 and is fixed with the fixed head 354. The second baffle 322 is fixed with a support plate 34 on the side far away from the first baffle 321, and the transverse movable rod 351 is supported on the support plate 34 and is in sliding fit with the support plate 34. Specifically, the top surface of the supporting plate 34 is fixed with a first sliding block, the bottom surface of the transverse movable rod 351 is provided with a first sliding groove along the length direction of the transverse movable rod 351, and the first sliding block is inserted in the first sliding groove and is in sliding fit with the first sliding groove. Fixing head 354 and limiting piece 36 are located between first grout stop 321 and second grout stop 322 and below waterproof rubber strip 33 respectively. The plug 365 is provided with a slot 355 at a side far away from the lateral movable rod 351, and the limiting member 36 is inserted into the slot 355.
Referring to fig. 1-5, the position-limiting member 36 includes a first member including a plunger 361, a first spring 362, a positioning ring 363, a fixing rod 364, and a plug 365. The insertion rod 361 has one end fixed to the first baffle 321 and the other end extending toward the second baffle 322 and fixed to the fixing rod 364. One end of the fixing rod 364 is fixed to the insertion rod 361, and the other end is fixed to the plug 365, and the plug 365 is inserted into the insertion groove 355. The first spring 362 is sleeved on the circumferential surface of the insertion rod 361 and tightly pressed between the first baffle 321 and the positioning ring 363, and the positioning ring 363 is in contact with the fixed head 354. The positioning ring 363 is slidably disposed on the insertion rod 361 along the length direction of the insertion rod 361, specifically, a second sliding block is fixed on the inner side of the positioning ring 363, a second sliding groove is formed in the surface of the insertion rod 361 along the length direction of the insertion rod 361, and the second sliding block is inserted in the second sliding groove and is in sliding fit with the second sliding groove.
In the above technical solution, when the movable toothed plate 2 moves towards the direction approaching the fixed toothed plate 1 on the top surface of the bracket 3, the inserting member 35 approaches towards the first slurry blocking plate 321, at this time, the first spring 362 is compressed, and the plug 365 moves towards the bottom direction approaching the inner bottom of the inserting groove 355. The damping device has better buffering and damping effects so as to better adapt to bridge deformation.
Referring to fig. 1 to 5, a locking member 356 is disposed on the fixing head 354, and the locking member 356 includes a receiving groove 3561, a tip 3562, a connecting rod 3563, a second spring 3565, and a locking block 3564. The receiving groove 3561 is located on a side wall of the insertion groove 355 and communicates with the insertion groove 355, and an axial direction of the receiving groove 3561 is perpendicular to an axial direction of the insertion groove 355. The locking piece 3564 is located in the accommodating groove 3561, one end of the connecting rod 3563 is fixed to the locking piece 3564, the other end of the connecting rod 3563 extends in a direction away from the insertion groove 355 and penetrates through the fixing head 354, and the end 3562 is located outside the fixing head 354 and fixed to the outer end of the connecting rod 3563. The second spring 3565 is disposed in the accommodating groove 3561, and the second spring 3565 is sleeved on the circumferential surface of the connecting rod 3563 and abuts against the locking block 3564 and the bottom of the accommodating groove 3561. The locking block 3564 is an outwardly convex arc surface on the side close to the slot 355, the plug 365 is hemispherical, the outer arc surface faces the inner bottom of the slot 355, and the corner of the inserted link 361 close to one end of the plug 365 is in smooth transition. The outer arc surface of the plug 365 and the insertion rod 361 smoothly transition to contact with the arc surface of the locking block 3564, so that the locking block 3564 moves towards the inner bottom of the accommodating groove 3561.
In the above technical solution, the locking member 356 is mainly used to lock the plug 365, and prevent the plug 365 from being separated from the insertion slot 355, so as to improve the link strength between the bracket 3, the fixed toothed plate 1 and the movable toothed plate 2. During the installation, the cambered surface contact of plug 365 and locking piece 3564, or plug 365 is located between locking piece 3564 and the slot 355 notch, appear warping when the bridge, the movable tooth plate 2 is when 3 top surfaces of bracket are to being close to the 1 direction removal of fixed tooth plate, plug 365 will be to being close to the interior bottom direction removal of slot 355, when plug 365 moves to locking piece 3564 and slot 355 in between the bottom, under the restriction of locking piece 3564, plug 365 will not be can not reset the primary position, thereby can play the locking effect, prevent that the bridge warp the back, movable tooth plate 2 breaks away from bracket 3 and fixed tooth plate 1, bridge stability has been strengthened.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that several improvements and modifications without departing from the principle of the present invention will occur to those skilled in the art, and such improvements and modifications should also be construed as within the scope of the present invention.
Claims (10)
1. The utility model provides a vibration/noise reduction integral welding formula fishback expansion joint which characterized in that: comprises a fixed toothed plate (1), a movable toothed plate (2) and a bracket (3);
the fixed toothed plate (1) and the movable toothed plate (2) are supported on the bracket (3), an anchoring ring (4) and a welding nail (5) are fixed on the fixed toothed plate (1) and the movable toothed plate (2), the anchoring ring (4) is fixed on the outer side of the fixed toothed plate (1) and the outer side of the movable toothed plate (2), and the welding nail (5) is fixed at the bottoms of the fixed toothed plate (1) and the movable toothed plate (2) and is positioned on two opposite sides of the bracket (3);
bracket (3) are including sliding plate (31), fender thick liquid board and waterproof stripe (33), fixed pinion rack (1) with adjustable tooth plate (2) support on sliding plate (31), the fender thick liquid board includes first fender thick liquid board (321) and second fender thick liquid board (322), first fender thick liquid board (321) is fixed on sliding plate (31), first fender thick liquid board (321) with be provided with the gap between second fender thick liquid board (322), waterproof stripe (33) are located top just is located in the gap adjustable tooth plate (2) below.
2. The shock-absorbing noise-reducing integrally-welded comb plate expansion joint as claimed in claim 1, wherein: slide backing plate (31) bottom is provided with slide backing plate anchor ring (37) and horizontal reinforcing bar (38), slide backing plate anchor ring (37) are fixed slide backing plate (31) bottom, horizontal reinforcing bar (38) are located inside and pre-buried in cast in situ concrete of slide backing plate anchor ring (37).
3. The shock-absorbing noise-reducing integrally-welded comb plate expansion joint as claimed in claim 1, wherein: the movable toothed plate is characterized in that a positioning rod (6) is fixed at the bottom of the movable toothed plate (2), an inserting piece (35) and a limiting piece (36) are arranged on the pulp blocking plate, the positioning rod (6) is inserted into the inserting piece (35) to be matched, and the inserting piece (35) is inserted into the limiting piece (36) to be matched.
4. The shock-absorbing noise-reducing integrally-welded comb plate expansion joint as claimed in claim 3, wherein: the inserting piece (35) comprises a transverse movable rod (351), a vertical movable rod (352) and a fixed head (354);
the lower end of the vertical movable rod (352) is fixed with one end of the transverse movable rod (351), the upper end of the vertical movable rod is provided with a positioning groove (353) matched with the positioning rod (6), the upper end of the positioning rod (6) is fixed at the bottom of the movable toothed plate (2), and the lower end of the positioning rod is inserted into the positioning groove (353);
one end of the transverse movable rod (351) is fixed to the vertical movable rod (352), the other end of the transverse movable rod penetrates through the second slurry baffle (322) and is fixed to the fixing head (354), one side, far away from the transverse movable rod (351), of the plug (365) is provided with a slot (355), and the limiting piece (36) is inserted into the slot (355).
5. The shock-absorbing noise-reducing integrally-welded comb plate expansion joint as claimed in claim 4, wherein: the limiting piece (36) is positioned between the first slurry baffle (321) and the second slurry baffle (322), and the limiting piece (36) comprises a first plug rod (361), a first spring (362), a positioning ring (363), a fixing rod (364) and a plug (365);
one end of the inserting rod (361) is fixed on the first slurry baffle (321), the other end of the inserting rod (361) extends towards the direction close to the second slurry baffle (322) and is fixed with the fixing rod (364), one end of the fixing rod (364) is fixed with the inserting rod (361), the other end of the fixing rod is fixed with the plug (365), and the plug (365) is inserted into the inserting groove (355);
the first spring (362) is sleeved on the circumferential surface of the insertion rod (361) and tightly propped between the first pulp baffle (321) and the positioning ring (363), and the positioning ring (363) is in contact with the fixing head (354).
6. The shock-absorbing noise-reducing integrally-welded comb plate expansion joint as claimed in claim 5, wherein: a locking piece (356) is arranged on the fixed head (354), and the locking piece (356) comprises an accommodating groove (3561), a head (3562), a connecting rod (3563), a second spring (3565) and a locking block (3564);
the accommodating groove (3561) is positioned on the side wall of the insertion groove (355) and is communicated with the insertion groove (355), the axial direction of the accommodating groove (3561) is perpendicular to the axial direction of the insertion groove (355), the locking block (3564) is positioned in the accommodating groove (3561), one end of the connecting rod (3563) is fixed with the locking block (3564), the other end of the connecting rod extends in the direction away from the insertion groove (355) and penetrates through the fixing head (354), and the head (3562) is positioned outside the fixing head (354) and is fixed with the outer end of the connecting rod (3563);
the second spring (3565) is positioned in the accommodating groove (3561), and the second spring (3565) is sleeved on the circumferential surface of the connecting rod (3563) and abuts against the locking block (3564) and the inner bottom of the accommodating groove (3561);
the locking piece (3564) is close to one side of the insertion groove (355) and is an outward convex cambered surface, the plug (365) is hemispherical, the outer cambered surface faces to the inner bottom of the insertion groove (355), the corner of one end, close to the plug (365), of the inserted link (361) is in smooth transition, the outer cambered surface of the plug (365) and the smooth transition of the inserted link (361) are used for being in contact with the cambered surface of the locking piece (3564), and therefore the locking piece (3564) moves towards the inner bottom of the accommodating groove (3561).
7. The shock-absorbing noise-reducing integrally-welded comb plate expansion joint as claimed in claim 4, wherein: the second baffle (322) is fixed with a supporting plate (34) at one side far away from the first baffle (321), and the transverse movable rod (351) is supported on the supporting plate (34) and is in sliding fit with the supporting plate (34).
8. The shock-absorbing noise-reducing integrally-welded comb plate expansion joint as claimed in claim 5, wherein: the positioning ring (363) is arranged on the inserted bar (361) in a sliding mode along the length direction of the inserted bar (361).
9. The shock-absorbing noise-reducing integrally-welded comb plate expansion joint as claimed in claim 1, wherein: the waterproof rubber strip (33) is in the shape of a semicircular arc sheet, and the inner arc surface of the waterproof rubber strip faces upwards.
10. The integrally welded expansion joint of comb plate for shock absorption and noise reduction according to claim 2, wherein: the anchoring ring (4) and the welding nails (5) are all provided with a plurality of the anchoring ring (4) and the welding nails (5) are arranged at equal intervals along the length direction of the transverse steel bars (38) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011517681.0A CN112663490A (en) | 2020-12-21 | 2020-12-21 | Shock attenuation and noise reduction integral welding formula fishback expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011517681.0A CN112663490A (en) | 2020-12-21 | 2020-12-21 | Shock attenuation and noise reduction integral welding formula fishback expansion joint |
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| Publication Number | Publication Date |
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| CN112663490A true CN112663490A (en) | 2021-04-16 |
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|---|---|---|---|
| CN202011517681.0A Pending CN112663490A (en) | 2020-12-21 | 2020-12-21 | Shock attenuation and noise reduction integral welding formula fishback expansion joint |
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| CN211547313U (en) * | 2019-11-15 | 2020-09-22 | 陕西尚德交通技术工程有限公司 | Bridge deck expansion joint pavement structure |
| CN211850577U (en) * | 2020-03-04 | 2020-11-03 | 常州市永丰新材料科技有限公司 | Splicing apparatus for anti-deformation WPC composite floor |
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| EP2940225A1 (en) * | 2014-04-29 | 2015-11-04 | Mageba GmbH | Device for bridging an expansion joint |
| CN208649882U (en) * | 2018-08-20 | 2019-03-26 | 张庆华 | Girder falling damping damps comb teeth retractor device |
| CN109440638A (en) * | 2018-12-26 | 2019-03-08 | 四川金贝建设工程有限公司 | A kind of comb-tooth bridge expansion device and bridge |
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