CN217839690U - Expansion joint waterproof device with upper cover type mechanical connection easy to replace for rail bridge - Google Patents
Expansion joint waterproof device with upper cover type mechanical connection easy to replace for rail bridge Download PDFInfo
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- CN217839690U CN217839690U CN202121939654.2U CN202121939654U CN217839690U CN 217839690 U CN217839690 U CN 217839690U CN 202121939654 U CN202121939654 U CN 202121939654U CN 217839690 U CN217839690 U CN 217839690U
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Abstract
The utility model relates to an expansion joint watertight fittings that track bridge upper cover formula mechanical connection was easily changed belongs to track bridge technical field. It has solved the inconvenient problem of changing joint strip of current expansion joint watertight fittings. It includes joint strip and two sets of installation component that are used for installing joint strip, and the installation component includes the base and can dismantle the gland of connecting on the base, is equipped with the draw-in groove between base and the gland, and joint strip and draw-in groove seal fit are equipped with the anti-disengaging structure who is used for preventing joint strip from deviating from in the draw-in groove. The two ends of the sealing rubber strip are respectively compressed by the pressing cover and the base, the sealing rubber strip is waterproof and reliable, the sealing rubber strip can be easily replaced by only loosening the pressing cover during replacement, and the sealing rubber strip replacement device is simple in operation and high in efficiency.
Description
Technical Field
The utility model belongs to the technical field of the track bridge, a expansion joint watertight fittings, especially a track bridge upper cover formula mechanical connection expansion joint watertight fittings who easily changes are related to.
Background
The bridge expansion joint is arranged between the beam bodies at the two ends, between the beam end and the abutment or at the hinged position of the bridge, and can freely expand and contract in the direction parallel to and perpendicular to the axis of the bridge. In order to avoid the damage to the lower structure of the beam body and the bridge support caused by the water leakage of the beam joint and the environmental impact caused by the water leakage, a waterproof device is usually arranged at the expansion joint.
The sealing rubber strip has a waterproof effect as well as a stretchable property, and thus is widely used as a waterproof device. The waterproof and clamping performance of the expansion joint of the rail bridge is required to be long-term and reliable, and the sealing rubber strip is a quick-wear part and needs to have the performance of easy replacement.
The sealing rubber strip with good waterproof performance in the expansion joint of the existing track (railway track containing iron) is difficult to replace and long in replacement time, and is not beneficial to quick operation. Although some expansion joints adopt sealing rubber strips which are easy to replace, the structure does not have long-term reliable waterproof performance and clamping performance, and great difficulty is brought to maintenance of the rail sealing rubber strips.
SUMMERY OF THE UTILITY MODEL
The utility model aims at having the above-mentioned problem to current technique, provided an expansion joint watertight fittings that convenient change and water-proof effects is good's the easy change of track bridge upper cover formula mechanical connection.
The purpose of the utility model can be realized by the following technical proposal:
the expansion joint watertight fittings that track bridge upper cover formula mechanical connection was easily changed, including joint strip and two sets of installation component that are used for installing joint strip, installation component includes the base and can dismantle the gland of connecting on the base, be equipped with the draw-in groove between base and the gland, joint strip and draw-in groove seal cooperation, be equipped with the anti-disengaging structure who is used for preventing joint strip and deviates from in the draw-in groove.
Two sets of installation component relative mounting are on the roof beam body of expansion joint both sides, and joint strip's a side is located one of them installation component's draw-in groove, and joint strip's another side is located another installation component's draw-in groove to anticreep subassembly through corresponding realizes sealed spacing. Because gland and base are for dismantling to be connected, conveniently maintain the joint strip and support.
In the expansion joint watertight fittings that above-mentioned track bridge upper cover formula mechanical connection was easily changed, anti-disengaging structure keeps off along and locates the anticreep portion on the joint strip including the first spacing of locating draw-in groove one side, anticreep portion is kept off along spacing in the draw-in groove by first spacing.
The thickness of anticreep portion is greater than joint strip's thickness, and first spacing fender has the clearance between along the opposite side with the draw-in groove, and joint strip penetrates by this clearance, and the width in this clearance is less than joint strip's thickness. During the installation, pull down the gland from the base, put into the draw-in groove with joint strip's anticreep portion, then be connected to the gland on the base again, keep off spacing in the draw-in groove with anticreep portion under the effect on edge at first spacing.
In the above-mentioned overhead formula mechanical connection of track bridge expansion joint watertight fittings that easily changes, anti-disengaging structure is still including locating the spacing fender edge of second of draw-in groove opposite side, the spacing fender edge of second sets up with first spacing fender edge relatively, anti-disengaging portion is kept off along spacing in the draw-in groove by first spacing fender edge and second spacing fender edge.
The first limit baffle edge and the second limit baffle edge are provided with a gap therebetween, the sealing rubber strip penetrates through the gap, and the width of the gap is smaller than that of the anti-falling part. During the installation, pull down the gland from the base, put into the back with anticreep portion and be connected to the base again, keep off along keeping off spacing in the draw-in groove with the effect on edge with the second spacing with anticreep portion down at first spacing.
In order to reach better water-proof effects, the thickness of joint strip slightly is greater than the interval between first spacing fender edge and the spacing fender edge of second, keeps off through first spacing fender edge and the spacing fender edge of second and compresses tightly joint strip and realize sealedly, reaches waterproof purpose. Further, set up waterproof fender edge on the both sides of anticreep portion respectively, waterproof fender edge respectively with the sealed laminating of the inside wall of draw-in groove, further promoted waterproof effect.
In the expansion joint watertight fittings that above-mentioned track bridge upper cover formula mechanical connection was easily changed, be equipped with on the joint strip and sealed paste and keep off the edge at the first spacing fender edge and/or the spacing fender edge of second on, the root that keeps off edge and/or the spacing fender edge of second has spacing recess, the sealed one end of keeping away from joint strip of keeping away from of keeping off the edge stretches into spacing recess.
The end, far away from the sealing rubber strip, of the sealing baffle edge is limited through the limiting groove, so that the sealing baffle edge can be tightly attached to the first limiting baffle edge and/or the second limiting baffle edge. Because of the sealing blocking edge, the waterproof effect can be improved.
The above structure has the following three cases:
a. the sealing rubber strip is provided with a sealing baffle edge, the sealing baffle edge is in sealing contact with a first limiting baffle edge, the root of the first limiting baffle edge is provided with a limiting groove, and one end of the sealing baffle edge, which is far away from the sealing rubber strip, extends into the limiting groove; b. the sealing rubber strip is provided with a sealing baffle edge, the sealing baffle edge is in sealing contact with a second limiting baffle edge, the root of the second limiting baffle edge is provided with a limiting groove, and one end of the sealing baffle edge, which is far away from the sealing rubber strip, extends into the limiting groove; c. the sealing rubber strip is provided with two sealing baffle edges which are oppositely arranged, one sealing baffle edge is in sealing contact with the first limiting baffle edge, the other sealing baffle edge is in sealing contact with the second limiting baffle edge, the first limiting baffle edge and the second limiting baffle edge are respectively provided with a limiting groove at the root, and the sealing baffle edge is respectively extended into the corresponding limiting groove at one end far away from the sealing rubber strip.
In the above-mentioned overhead formula mechanical connection of track bridge expansion joint watertight fittings that easily changes, mounting groove has on the base, the gland has the installation arch that sets up with the mounting groove cooperation, be equipped with the sealing strip between installation arch and the mounting groove.
The length direction of the mounting groove is parallel to the length direction of the clamping groove, and rainwater can be prevented from permeating from the joint surface of the mounting protrusion and the mounting groove through the arranged sealing strips.
In the above-mentioned overhead formula mechanical connection of track bridge expansion joint watertight fittings that easily changes, be equipped with the mounting hole on the installation arch, be equipped with the first screw hole that sets up relatively with the mounting hole in the mounting groove, wear to be equipped with the bolt with first screw hole threaded connection in the mounting hole, be equipped with sealed the pad between the pole head of bolt and the installation arch. The mounting bulge can be connected into the mounting groove through the bolt, and the sealing gasket plays a role in looseness prevention, prevents the bolt from loosening and also plays a certain sealing effect.
In the above-mentioned overhead type mechanical connection of track bridge expansion joint watertight fittings that easily changes, be equipped with the installation cavity with the mounting hole intercommunication on the gland, the pole head of bolt is located the installation cavity, the opening part of installation cavity is equipped with the shield. The installation cavity can hold the pole head of bolt, prevents the surface of the protruding gland of pole head of bolt, has set up the shield simultaneously, prevents that the dust from getting into.
In the above-mentioned overhead type mechanical connection of track bridge expansion joint watertight fittings that easily changes, the installation component still includes the manger plate piece, the manger plate piece links firmly through reinforcing bar and roof beam body, the base is fixed on the manger plate piece.
In the above-mentioned expansion joint watertight fittings that cover formula mechanical connection is easily changed on the track bridge, be equipped with the second screw hole on the base, the anchor bar has been buried underground in the manger plate piece, the one end of anchor bar is the screw thread section with second screw hole screw-thread fit, threaded connection has the nut that leans on the base on the screw thread section.
In the expansion joint waterproof device with the upper cover type mechanical connection of the track bridge and easy replacement, a filling cavity communicated with the first threaded hole and the second threaded hole is formed in the base, and a foam layer is filled in the filling cavity.
In the above-mentioned expansion joint watertight fittings that the upper cover type mechanical connection of track bridge is easily changed, be equipped with the deformation hole on the joint strip.
Compared with the prior art, the expansion joint waterproof device with the upper cover type mechanical connection and easy replacement of the rail bridge has the advantages that: the two ends of the sealing rubber strip are respectively pressed by the pressing cover and the base, so that the sealing rubber strip is waterproof and reliable, the sealing rubber strip can be easily replaced by only taking down the bolt and loosening the pressing cover during replacement, the operation is simple, and the efficiency is high; the vertical contact surface of the sealing rubber strip and the base is arranged in the clamping groove, so that water and slag accumulation are not easy to occur, the service life of the sealing rubber strip is not influenced, and the waterproof effect is good; the sealing gasket and the sealing strip can effectively prevent rainwater from permeating from the joint surface; the dust cover is arranged in the mounting cavity, accumulated water and accumulated slag can be prevented, the cleaning difficulty during replacement is reduced, and the maintenance cost is saved.
Drawings
Fig. 1 is a sectional view of the waterproof device for expansion joint provided by the utility model.
Fig. 2 is an enlarged schematic view of a in fig. 1 provided by the present invention.
Fig. 3 is a cross-sectional view of a base provided by the present invention.
Fig. 4 is a cross-sectional view of the gland provided by the present invention.
In the figure, 1, a sealing rubber strip; 11. a retaining part; 12. sealing the blocking edge; 13. waterproof blocking edges; 14. a deformation hole; 21. a base; 211. installing a groove; 212. a first threaded hole; 213. a second threaded hole; 214. filling the cavity; 215. clamping teeth; 22. a gland; 221. mounting a boss; 222. mounting holes; 223. mounting a concave cavity; 23. a card slot; 24. a first limit stop edge; 25. a second limit stop edge; 26. a limiting groove; 27. a sealing strip; 28. a bolt; 29. a gasket; 20. a dust cover; 3. a water retaining block; 4. reinforcing steel bars; 5. a beam body; 6. anchoring ribs; 7. a nut; 8. a foam layer.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As the expansion joint watertight fittings that track bridge upper cover formula mechanical connection was easily changed that fig. 1 shows, including joint strip 1 and two sets of installation component that are used for installing joint strip 1, the both sides at expansion joint have the roof beam body 5 respectively, have linked firmly water retaining block 3 through U shaped steel muscle 4 on the upper portion of the roof beam body 5, on one of them water retaining block 3 is fixed to a set of installation component, another group's installation component is fixed on another water retaining block 3. As shown in fig. 1 and 2, the joint strip 1 is provided with a deformation hole 14.
In this embodiment, as shown in fig. 2, the installation component includes a base 21 and a gland 22 detachably connected to the base 21, a clamping groove 23 is provided between the base 21 and the gland 22, the sealing rubber strip 1 is in sealing fit with the clamping groove 23, and an anti-falling structure for preventing the sealing rubber strip 1 from falling off is provided in the clamping groove 23. As shown in fig. 3, the joint of the base and the water blocking block 3 is provided with a latch 215.
One side edge of the sealing rubber strip 1 is positioned in the clamping groove 23 of one of the mounting assemblies, the other side edge of the sealing rubber strip 1 is positioned in the clamping groove 23 of the other mounting assembly, and sealing and limiting are realized through the corresponding anti-falling assemblies. As the gland 22 is detachably connected with the base 21, the maintenance of the sealing rubber strip 1 is convenient.
As shown in fig. 2 and 3, a second threaded hole 213 is formed in the base 21, an anchor bar 6 is embedded in the water blocking block 3, one end of the anchor bar 6 is a threaded section in threaded fit with the second threaded hole 213, and a nut 7 abutting against the base 21 is in threaded connection with the threaded section.
As shown in fig. 2, the anti-disengaging structure includes a first limiting blocking edge 24 disposed on one side of the clamping groove 23 and an anti-disengaging portion 11 disposed on the sealing rubber strip 1, the anti-disengaging structure further includes a second limiting blocking edge 25 disposed on the other side of the clamping groove 23, the second limiting blocking edge 25 is disposed opposite to the first limiting blocking edge 24, and the anti-disengaging portion 11 is limited in the clamping groove 23 by the first limiting blocking edge 24 and the second limiting blocking edge 25.
The first limit stop edge 24 is positioned on the gland 22, and the second limit stop edge 25 is positioned on the base 21. A gap is formed between the first limit stop edge 24 and the second limit stop edge 25, the sealing rubber strip 1 penetrates through the gap, and the width of the gap is smaller than that of the anti-falling part 11. When the anti-dropping device is installed, the pressing cover 22 is detached from the base 21, the anti-dropping part 11 is placed in the pressing cover 22, then the pressing cover 22 is connected to the base 21, and the anti-dropping part 11 is limited in the clamping groove 23 under the action of the first limiting blocking edge 24 and the second limiting blocking edge 25.
In order to achieve a better waterproof effect, the thickness of the sealing rubber strip 1 is slightly larger than the distance between the first limit baffle edge 24 and the second limit baffle edge 25, the sealing rubber strip 1 is compressed tightly to achieve sealing through the first limit baffle edge 24 and the second limit baffle edge 25, and a waterproof purpose is achieved. Further, set up waterproof fender edge 13 on the both sides of anticreep portion 11 respectively, waterproof fender edge 13 is sealed with the inside wall of draw-in groove 23 respectively and is laminated, has further promoted waterproof effect.
In some other embodiments, the anti-separation structure only includes the first limit stop edge 24 disposed on one side of the slot 23 and the anti-separation portion 11 disposed on the sealing rubber strip 1, the thickness of the anti-separation portion 11 is greater than that of the sealing rubber strip 1, a gap is formed between the first limit stop edge 24 and the other side of the slot 23, the sealing rubber strip 1 penetrates through the gap, and the width of the gap is smaller than that of the sealing rubber strip 1. During installation, the gland 22 is detached from the base 21, the anti-falling part 11 of the sealing rubber strip 1 is placed in the clamping groove 23, then the gland 22 is connected to the base 21, and the anti-falling part 11 is limited in the clamping groove 23 under the action of the first limiting blocking edge 24.
As shown in fig. 2, the sealing rubber strip 1 is provided with a sealing barrier edge 12 which is in sealing contact with a first limiting barrier edge 24, the root of the first limiting barrier edge 24 is provided with a limiting groove 26, and one end of the sealing barrier edge 12, which is far away from the sealing rubber strip 1, extends into the limiting groove 26. The end of the sealing baffle edge 12 far away from the sealing rubber strip 1 is limited by the limiting groove 26, so that the sealing baffle edge 12 can be tightly attached to the first limiting baffle edge 24. Due to the sealing barrier edge 12, the waterproof effect can be improved.
As shown in fig. 3, the base 21 has a mounting groove 211, as shown in fig. 2, the pressing cover 22 has a mounting protrusion 221 disposed to match the mounting groove 211, and a sealing strip 27 is disposed between the mounting protrusion 221 and the mounting groove 211. The length direction of the mounting groove 211 is parallel to the length direction of the slot 23, and the arranged sealing strip 27 can prevent rainwater from permeating from the joint surface of the mounting protrusion 221 and the mounting groove 211.
As shown in fig. 4, the mounting protrusion 221 is provided with a mounting hole 222, the mounting recess 211 is provided with a first threaded hole 212 opposite to the mounting hole 222, as shown in fig. 2, a bolt 28 in threaded connection with the first threaded hole 212 passes through the mounting hole 222, and a sealing gasket 29 is provided between the rod head of the bolt 28 and the mounting protrusion 221. The mounting protrusion 221 can be connected to the mounting groove 211 by the bolt 28, and the sealing gasket 29 plays a role in preventing loosening of the bolt 28 and also plays a role in sealing.
As shown in fig. 3, the pressing cover 22 is provided with a mounting cavity 223 communicated with the mounting hole 222, the head of the bolt 28 is positioned in the mounting cavity 223, and as shown in fig. 2, the opening of the mounting cavity 223 is provided with the dust cover 20. The mounting recess 223 receives the head of the bolt 28 to prevent the head of the bolt 28 from protruding out of the surface of the pressing cover 22, while the dust cap 20 is provided to prevent dust from entering.
As shown in fig. 2 and 3, the base 21 has a filling cavity 214 therein, which is respectively communicated with the first threaded hole 212 and the second threaded hole 213, and the filling cavity 214 is filled with the foam layer 8.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. The utility model provides an easy expansion joint watertight fittings who changes of track bridge upper cover formula mechanical connection, includes joint strip (1) and two sets of installation components that are used for installing joint strip (1), its characterized in that, the installation component includes base (21) and can dismantle gland (22) of connecting on base (21), be equipped with draw-in groove (23) between base (21) and gland (22), joint strip (1) and draw-in groove (23) seal fit, be equipped with the anti-disengaging structure who is used for preventing joint strip (1) and deviates from in draw-in groove (23).
2. The upper cover type expansion joint waterproof device for the mechanical connection of the rail bridge as claimed in claim 1, wherein the anti-dropping structure comprises a first limiting blocking edge (24) arranged on one side of the clamping groove (23) and an anti-dropping part (11) arranged on the sealing rubber strip (1), and the anti-dropping part (11) is limited in the clamping groove (23) by the first limiting blocking edge (24).
3. The upper cover type mechanical connection easy-to-replace expansion joint waterproof device of the rail bridge according to claim 2, wherein the anti-disengaging structure further comprises a second limiting blocking edge (25) arranged on the other side of the clamping groove (23), the second limiting blocking edge (25) is arranged opposite to the first limiting blocking edge (24), and the anti-disengaging part (11) is limited in the clamping groove (23) by the first limiting blocking edge (24) and the second limiting blocking edge (25).
4. The upper cover type mechanical connection easy-to-replace expansion joint waterproof device for the rail bridge according to claim 3, wherein the sealing rubber strip (1) is provided with a sealing blocking edge (12) which is in sealing contact with a first limiting blocking edge (24) and/or a second limiting blocking edge (25), the root of the first limiting blocking edge (24) and/or the second limiting blocking edge (25) is provided with a limiting groove (26), and one end, far away from the sealing rubber strip (1), of the sealing blocking edge (12) extends into the limiting groove (26).
5. The upper cover type mechanical connection easily replaceable expansion joint waterproof device for the rail bridge according to claim 1, 2, 3 or 4, wherein the base (21) is provided with a mounting groove (211), the gland (22) is provided with a mounting protrusion (221) matched with the mounting groove (211), and a sealing strip (27) is arranged between the mounting protrusion (221) and the mounting groove (211).
6. The upper cover type mechanical connection easy-to-replace expansion joint waterproof device for the rail bridge according to claim 5, wherein a mounting hole (222) is formed in the mounting protrusion (221), a first threaded hole (212) opposite to the mounting hole (222) is formed in the mounting groove (211), a bolt (28) in threaded connection with the first threaded hole (212) penetrates through the mounting hole (222), and a sealing gasket (29) is arranged between a rod head of the bolt (28) and the mounting protrusion (221).
7. The upper cover type mechanical connection easy-to-replace expansion joint waterproof device for the rail bridge according to claim 6, wherein a mounting cavity (223) communicated with the mounting hole (222) is formed in the pressing cover (22), the head of the bolt (28) is located in the mounting cavity (223), and a dustproof cover (20) is arranged at an opening of the mounting cavity (223).
8. The upper cover type expansion joint waterproof device for the mechanical connection of the rail bridge as claimed in claim 1, wherein the mounting assembly further comprises a water blocking block (3), the water blocking block (3) is fixedly connected with the beam body (5) through a steel bar (4), and the base (21) is fixed on the water blocking block (3).
9. The upper cover type mechanical connection easily replaceable expansion joint waterproof device for the rail bridge girder according to claim 8, wherein a second threaded hole (213) is formed in the base (21), an anchor bar (6) is embedded in the water blocking block (3), one end of the anchor bar (6) is a threaded section in threaded fit with the second threaded hole (213), and a nut (7) abutting against the base (21) is in threaded connection with the threaded section.
10. The upper cover type mechanical connection easily replaceable expansion joint waterproof device for the rail bridge according to claim 1, wherein the sealing rubber strip (1) is provided with a deformation hole (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121939654.2U CN217839690U (en) | 2021-08-18 | 2021-08-18 | Expansion joint waterproof device with upper cover type mechanical connection easy to replace for rail bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121939654.2U CN217839690U (en) | 2021-08-18 | 2021-08-18 | Expansion joint waterproof device with upper cover type mechanical connection easy to replace for rail bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217839690U true CN217839690U (en) | 2022-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121939654.2U Active CN217839690U (en) | 2021-08-18 | 2021-08-18 | Expansion joint waterproof device with upper cover type mechanical connection easy to replace for rail bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217839690U (en) |
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2021
- 2021-08-18 CN CN202121939654.2U patent/CN217839690U/en active Active
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