Urban bridge sidewalk comb plate type telescopic device

Abstract

The utility model discloses a comb plate type telescopic device for an urban bridge sidewalk. The comb plate type telescopic device comprises a right cover plate, a left cover plate and fixing bolts, comb teeth and slots which are uniformly arranged are arranged on the right cover plate and the left cover plate, the comb teeth on the left cover plate and the comb teeth on the right cover plate are mutually inserted, the right cover plate is arranged above the left cover plate, and the slots are used for inserting fixing bolts for anchoring; the fixing bolt comprises a fixing column and a sleeve column which are connected in a sleeved mode, and the fixing column is arranged in a roadbed anchor pit and anchored through concrete. A mounting groove is formed in the top of the fixing column, and a hinged iron limiting rod is arranged in the mounting groove; a fixing disc fixedly connected with the fixing column is arranged below the limiting rod. A movable groove is formed in the fixed disc; the center of the sleeve column is provided with a through groove for sleeving the fixing column; and a limiting block is arranged at the other end of the sleeve column. The comb plate is anchored through the fixing bolts capable of being quickly assembled and disassembled, fixation is firm, and disassembly and maintenance are more convenient and smoother.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge expansion joints, and particularly relates to a comb-tooth plate type expansion device for a pedestrian walkway on a city bridge. Background Art

[0002] Bridge expansion joints are designed to meet the requirements of bridge deck deformation. They are usually set between the two beam ends, between the beam ends and the abutments, or at the hinged positions of the bridge. Bridge expansion joints can adjust the displacement and connection between the superstructures caused by vehicle loads and bridge construction materials. Bridge expansion joints must be able to prevent rainwater and garbage and soil from infiltrating and blocking them. At the same time, installation, inspection, maintenance, and removal of dirt must be simple and convenient.

[0003] After searching, the prior art announcement number CN 215629344 U is an integral anchor type boltless comb plate bridge expansion joint device, which uses the anchor plate as a support to weld between the left comb plate and the right comb plate to the bridge steel frame, avoiding the use of bolts as fixing parts, avoiding the comb tooth warping failure caused by loose nuts, increasing the structural strength, high connection strength, and improving the service life; at the same time, the whole is welded to the steel frame on site, and concrete is poured after leveling, which shortens the construction period and improves the installation efficiency; however, the various structures are connected by welding, especially the left comb plate and the right comb plate are welded to the anchor plate, and the anchor plate is directly welded to the steel fixing frame of the bridge on both sides of the expansion joint; when the left comb plate or the right comb plate is deformed and affects normal use, it cannot be replaced quickly and conveniently, and the use requirements of inspection and maintenance cannot be met;

[0004] Different from the above-mentioned integrally anchored boltless bridge expansion device, the publication number CN 212247850 U is a durable comb plate type bridge expansion device, in which the fixed comb plate and the cross-seam movable comb plate are fixed by fastening bolts; a common disadvantage of this fixing method is that the fastening bolts rust, which will lead to the inability to carry out maintenance or replacement of parts smoothly. Summary of the invention

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a comb-tooth plate type telescopic device for a city bridge sidewalk, which anchors the comb-tooth plate through a fixing bolt that can be quickly loaded and unloaded, so that it is not only firmly fixed, but also more convenient and smooth to disassemble and maintain.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A comb-tooth plate type telescopic device for a pedestrian walkway on an urban bridge comprises a right cover plate, a left cover plate and a fixing bolt; the right cover plate and the left cover plate are provided with comb teeth and slots arranged evenly, the comb teeth on the left cover plate and the right cover plate are plugged into each other, the right cover plate is arranged above the left cover plate, and the slot is used to plug in the fixing bolt for anchoring; the fixing bolt comprises a fixing column and a sleeve column which are sleeved into each other, the fixing column is arranged in a roadbed anchor pit and anchored by concrete; a mounting groove is provided on the top of the fixing column, and a hinged iron limit rod is provided in the mounting groove; a limit rod is provided under the limit rod A fixing plate fixedly connected to the fixing column is provided on the side; a movable groove is provided on the fixing plate; a through groove is provided in the center of the sleeve column for sleeve-connecting the fixing column; a limit plate is provided at one end of the sleeve column, and a limit block is provided at the other end; the limit plate is provided with evenly arranged slots; the sleeve column is inserted into the slot so that the limit block is placed in the movable slot; the sleeve column is rotated to make the limit block misaligned with the slot, and then the limit rod is rotated and placed in the slot to limit the rotation of the sleeve column, and finally it is fixed to the right cover plate or the left cover plate through the sleeve column and the fixing column; the fixing bolt is anchored to the roadbed through concrete.

[0008] The fixing plate is provided with a fixing groove. Furthermore, the bottom surface of the limiting plate is provided with a fixing groove, and a sealing ring is provided in the fixing groove. The setting of the sealing ring can prevent rainwater from intruding into the movable groove and rusting after the sleeve column, the fixing column and the right cover plate or the left cover plate are fixed.

[0009] A magnet is arranged in the installation groove, which can firmly absorb the rotating limit rod.

[0010] A magnet is arranged in the card slot, which can firmly absorb the limit rod after being engaged with the card slot.

[0011] The fixing column is provided with a plurality of fixing anchor rods to make it more firmly connected with the concrete.

[0012] Furthermore, a groove is provided at one end of the left cover plate.

[0013] Furthermore, a rubber roller is provided on the right cover plate and is arranged in the groove; the fit between the groove and the rubber roller can effectively prevent rainwater from invading the roadbed and the expansion joint of the bridge.

[0014] Furthermore, a support plate is provided under the right cover plate and the left cover plate for auxiliary support to prevent the right cover plate and the left cover plate from being deformed under long-term pressure; a leakage groove is provided on the support plate for anchoring the fixing bolt, and an insertion plate is provided at the leakage groove and inserted into the concrete to be anchored simultaneously with the fixing bolt; the support plate is provided with a vertically arranged top plate for supporting the end face of the roadbed or the expansion joint of the bridge, and a number of rib plates are provided between the top plate and the support plate to improve the support of the support plate.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1) The fixing bolt and the left cover plate or the right cover plate are fixed and connected to each other through the sleeve connection of the sleeve column and the fixing column. The sleeve column and the fixing column can be sleeved and combined, so the left cover plate or the right cover plate can be disassembled and removed smoothly, avoiding the disadvantage of the integral anchor type boltless comb plate bridge expansion joint device that cannot be disassembled and maintained smoothly;

[0017] The sleeve column is inserted into the slot and sleeved on the top plate of the fixed column, and the sleeve column is rotated to make the limit block staggered with the slot in the movable slot, and then the limit rod is rotated to be engaged with the slot and firmly sucked by a magnet to prevent the limit rod from jumping out due to vibration and thus affecting traffic safety. Further, the fixed fixed column and the limit rod are inserted into the slot and the installation slot to prevent the sleeve column from rotating. Through the above operations, the fixing bolt is fixedly locked with the right cover plate or the left cover plate;

[0018] 2) The use of sealing rings can help to lock the limit plate, fixed column and left cover or right cover on the sleeve column more firmly, so that the fixed plate and the limit plate fit tightly with the left cover or right cover, and prevent rainwater from invading the movable groove and causing rust between the limit block and the fixed plate as well as between the sleeve column and the fixed column, which will prevent the left cover and the right cover from being replaced smoothly, thus avoiding the disadvantage of rusty bolts and difficult removal in the bolt fixing method. At the same time, compared with the fixing method of bolts and nuts, the sleeve column and the fixed column in this scheme are easy and quick to use, and the sleeve column does not need to be disassembled by rotating it multiple times like the nut with the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attached Figure 1 This is a schematic diagram of the structure of a comb plate type telescopic device for a city bridge sidewalk of the utility model. Figure 1 ;

[0020] Attached Figure 2 This is a schematic diagram of the structure of a comb plate type telescopic device for a city bridge sidewalk of the utility model. Figure 2 ;

[0021] Attached Figure 3 This is a schematic diagram of the structure of a comb plate type telescopic device for a city bridge sidewalk of the utility model. Figure 3 ;

[0022] Attached Figure 4 It is a structural schematic diagram of the pallet;

[0023] Attached Figure 5 1 is a schematic diagram of the structure of the left cover plate and the right cover plate;

[0024] Attached Figure 6 It is a structural schematic diagram of the left cover;

[0025] Attached Figure 7 It is a schematic diagram of the structure of the fixing bolt;

[0026] Attached Figure 8 It is a schematic diagram of the structural breakdown of the fixing bolt;

[0027] In the figure: 1, right cover plate; 11, rubber roller; 2, left cover plate; 21, groove; 3, fixing bolt; 31, fixing column; 311, mounting groove; 312, limiting rod; 32, fixing anchor rod; 33, fixing plate; 331, fixing groove; 332, movable groove; 34, sealing ring; 35, sleeve column; 351, limiting block; 352, limiting plate; 353, card slot; 354, magnet; 355, through slot; 4, support plate; 41, top plate; 42, drain groove; 43, plug plate; 44, rib plate; 5, slot; 51, comb teeth; 6, roadbed. DETAILED DESCRIPTION

[0028] To facilitate the understanding of those skilled in the art, Figure 1-8 , the technical solution of the utility model is further specifically described.

[0029] Embodiment 1:

[0030] A comb-tooth plate type telescopic device for a pedestrian walkway on an urban bridge comprises a right cover plate 1, a left cover plate 2 and a fixing bolt 3; the right cover plate 1 and the left cover plate 2 are provided with evenly arranged comb teeth 51 and a slot 5, the comb teeth 51 on the left cover plate 2 and the right cover plate 1 are plugged into each other, the right cover plate 1 is arranged above the left cover plate 2, and the slot 5 is used to plug the fixing bolt 3 for anchoring; the fixing bolt 3 comprises a fixing column 31 and a sleeve column 35 which are sleeved into each other, the fixing column 31 is arranged in an anchor pit of a roadbed 6 and is anchored by concrete; a mounting groove 311 is provided on the top of the fixing column 31, and a hinged iron limit rod 312 is provided in the mounting groove 311; a limit rod 312 is provided below the limit rod 312 and fixed to the fixing column 31 A fixed plate 33 is connected; a movable groove 332 is provided on the fixed plate 33; a through groove 355 is provided in the center of the sleeve column 35 for sleeve-connecting the fixed column 31; a limit plate 352 is provided at one end of the sleeve column 35, and a limit block 351 is provided at the other end; the limit plate 352 is provided with evenly arranged grooves 353; the sleeve column 35 is inserted into the slot 5 so that the limit block 351 is placed in the movable groove 332; the sleeve column 35 is rotated to make the limit block 351 misaligned with the slot 5, and then the limit rod 312 is rotated and placed in the groove 353 to limit the rotation of the sleeve column 35, and finally fixed to the right cover plate 1 or the left cover plate 2 through the sleeve column 35 and the fixed column 31; the fixing bolt 3 is anchored to the roadbed 6 through concrete.

[0031] The fixing plate 33 is provided with a fixing groove 331. Furthermore, a fixing groove 331 is provided on the bottom surface of the limiting plate 352, and a sealing ring 34 is provided in the fixing groove 331. The setting of the sealing ring 34 can prevent rainwater from intruding into the movable groove 332 and rusting after the sleeve column 35, the fixing column 31 and the right cover plate 1 or the left cover plate 2 are fixed.

[0032] The installation groove 311 is provided with a magnet 354 which can firmly absorb the rotating limiting rod 312 .

[0033] A magnet 354 is disposed in the slot 353 to firmly attract the limiting rod 312 after being engaged with the slot 353 .

[0034] The fixing column 31 is provided with a plurality of fixing anchor rods 32 to make it more firmly connected with the concrete.

[0035] Embodiment 2:

[0036] On the basis of Example 1:

[0037] A groove 21 is formed at one end of the left cover plate 2 .

[0038] The right cover plate 1 is provided with a rubber roller 11 which is arranged in the groove 21 ; the fit between the groove 21 and the rubber roller 11 can effectively prevent rainwater from invading the roadbed and the expansion joint of the bridge.

[0039] Embodiment 3:

[0040] Based on Example 2:

[0041] A support plate 4 is provided under the right cover plate 1 and the left cover plate 2 for auxiliary support to prevent the right cover plate 1 and the left cover plate 2 from being deformed by downward pressure under long-term action; a leakage groove 42 is provided on the support plate 4 for anchoring the fixing bolt 3, and an insert plate 43 is provided at the leakage groove 42 and inserted into the concrete to be anchored simultaneously with the fixing bolt 3; the support plate 4 is provided with a vertically arranged top plate 41 for supporting the end face of the roadbed or the expansion joint of the bridge, and a plurality of rib plates 44 are provided between the top plate 41 and the support plate 4 to improve the supportability of the support plate 4.

[0042] Application principle: First, an anchor pit is made at the expansion joint of a bridge or roadbed, and the position of the anchor pit corresponds to the position of the leakage groove; at the same time, the sleeve column 35 is inserted into the slot 5 and then sleeved on the top of the fixed column 31, and the sleeve column 35 is rotated to make the limit block 351 staggered with the slot 5 in the movable slot 332, and then the limit rod 312 is rotated to engage with the slot 353 and is firmly sucked by the magnet 354 to prevent the limit rod 312 from jumping off due to vibration and affecting traffic safety. The use of the sealing ring 34 can help the sleeve column 35 The limit plate 352 is locked more firmly with the fixing column 31; through the above operation, the fixing bolt 3 is fixed and locked with the right cover plate 1 or the left cover plate 2; then the fixing bolt 3 is placed in the anchor pit and fixed with the concrete; when the right cover plate 1 or the left cover plate 2 is deformed or swollen after a long period of use and needs to be replaced, it is only necessary to flip up the limit rod 312 to disengage the slot 353, then rotate the sleeve column 35 and take out the slot 5, and then take out the right cover plate 1 or the left cover plate 2 for replacement, which is convenient, fast and quick.

[0043] Furthermore, in order to increase the service life of the right cover plate 1 and the left cover plate 2, a support plate 4 may be installed for auxiliary support to reduce the probability of deformation of the right cover plate 1 and the left cover plate 2 due to downward pressure.

[0044] In the description of the present invention, unless otherwise specified, "plurality" means two or more; the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "inside", "outside", "front end", "rear end", "head" and "tail" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; in addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0045] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A comb plate type telescopic device for a pedestrian walkway on a city bridge, comprising a right cover plate, a left cover plate, and a fixing bolt; characterized in that The right cover plate and the left cover plate are provided with evenly arranged comb teeth and slots, the comb teeth on the left cover plate and the right cover plate are plugged into each other, the right cover plate is arranged above the left cover plate, and the slot is used to plug in the fixing bolt for anchoring; the fixing bolt includes a fixing column and a sleeve column and they are sleeved into each other, the fixing column is arranged in the roadbed anchor pit and anchored by concrete; a mounting groove is provided at the top of the fixing column, and an iron limit rod is hingedly connected in the mounting groove; a fixing plate fixedly connected to the fixing column is provided below the limit rod; a movable groove is provided on the fixing plate; a through groove is provided in the center of the sleeve column for sleeve-engaging the fixing column; a limit plate is provided at one end of the sleeve column, and a limit block is provided at the other end; evenly arranged card slots are provided on the limit plate; the sleeve column is inserted into the slot so that the limit block is placed in the movable slot; the sleeve column is rotated to make the limit block misaligned with the slot, and then the limit rod is rotated and placed in the card slot to limit the rotation of the sleeve column, and finally fixed to the right cover plate or the left cover plate through the sleeve column and the fixing column; the fixing bolt is anchored to the roadbed through concrete.

2. The comb plate type telescopic device for urban bridge sidewalk according to claim 1 is characterized in that The fixing plate is provided with a fixing groove. Furthermore, the bottom surface of the limiting plate is provided with a fixing groove, and a sealing ring is provided in the fixing groove.

3. The comb plate type telescopic device for urban bridge sidewalk according to claim 1 is characterized in that A magnet is arranged in the installation groove.

4. The comb plate type telescopic device for urban bridge sidewalk according to claim 1, characterized in that A magnet is arranged in the card slot.

5. The comb plate type telescopic device for urban bridge sidewalk according to claim 1 is characterized in that The fixing column is provided with a plurality of fixing anchor rods to make it more firmly connected with the concrete.

6. The comb plate type telescopic device for urban bridge sidewalk according to claim 1, characterized in that One end of the left cover plate is provided with a groove.

7. The comb plate type telescopic device for urban bridge sidewalk according to claim 1 is characterized in that The right cover plate is provided with a rubber roller and is arranged in the groove; the fit between the groove and the rubber roller can effectively prevent rainwater from invading the roadbed and the expansion joint of the bridge.

8. The comb plate type telescopic device for urban bridge sidewalk according to claim 1, characterized in that A support plate is provided under the right cover plate and the left cover plate for auxiliary support, and a groove is provided on the support plate for anchoring the fixing bolt. An insertion plate is provided at the groove and inserted into the concrete for anchoring simultaneously with the fixing bolt. The support plate is provided with a vertically arranged top plate for supporting the end face of the roadbed or the expansion joint of the bridge, and a number of rib plates are provided between the top plate and the support plate for improving the supporting capacity of the support plate.

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