Novel bridge comb tooth type expansion joint

Abstract

The utility model discloses a novel bridge comb tooth type expansion joint which comprises a first bridge body and a first installation frame, and the first installation frame is arranged in the right side of the top end of the first bridge body. When the novel bridge comb tooth type expansion joint is used, the multiple sets of first connecting comb teeth and second connecting comb teeth which are arranged in a crossed mode can meet the requirement for expansion in the parallel direction and the vertical direction when a bridge deck deforms; and connecting blocks are fixed to the right sides of the first connecting comb teeth and the left sides of the second connecting comb teeth correspondingly, the arranged connecting blocks can be correspondingly inserted into the movable grooves after the expansion joint is installed, gaps between the comb teeth in the expansion joint can be filled and sealed in an auxiliary mode through the arranged connecting blocks when the expansion joint is in a normal state, and the expansion joint is prevented from being damaged. And some external sundries and gravels are prevented from entering the interior of the gap, and the problem that the interior of the expansion joint is inconvenient to be closed in an auxiliary mode is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a novel comb-tooth type expansion joint for bridges. Background Art

[0002] A bridge refers to a building built for roads to cross natural or artificial obstacles. During the construction of a bridge, in order to meet some requirements of bridge deck deformation, expansion joints are usually set between the two beam ends, between the beam ends and the abutments, or at the hinged positions of the bridge. Through the retractable expansion joints, some expansion and contraction movements in two directions parallel and perpendicular to the bridge axis caused by the deformation of the bridge can be adapted. The comb-tooth expansion joint is a common type of bridge expansion joint and is widely used.

[0003] When the comb-tooth type expansion joint of a bridge is installed and used, there will be gaps between the multiple groups of comb teeth cross-arranged inside the expansion joint. During the use of the expansion joint after it is installed on the bridge deck, passing vehicles may easily bring some debris and gravel into the gaps between the comb teeth of the expansion joint, causing blockage inside the expansion joint and affecting the normal use of the expansion joint. There are shortcomings, and it is not convenient to assist in sealing the inside of the expansion joint.

[0004] Now, a new type of comb-tooth expansion joint for bridges is proposed to solve the above-mentioned shortcomings. Utility Model Content

[0005] The utility model aims to provide a novel comb-tooth type expansion joint for bridges, so as to solve the problem in the above-mentioned background technology that it is inconvenient to assist in sealing the inside of the expansion joint.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel bridge comb-tooth expansion joint, comprising a first bridge body and a first mounting frame, wherein the first bridge body is provided with a first mounting frame on the right side of the top end thereof, and a first connecting seat is provided on the inside of the first mounting frame, a second bridge body is provided on the right side of the first bridge body, and a second mounting frame is provided on the left side of the top end thereof, and a second connecting seat is provided on the inside of the second mounting frame, and a blocking structure for assisting in closing the inside of the expansion joint is provided on the first connecting seat and the second connecting seat;

[0007] The blocking structure includes a first connecting comb tooth, a second connecting comb tooth, a connecting block and a movable groove. The first connecting comb tooth is fixed to the right side of the first connecting seat, and the second connecting comb tooth is fixed to the left side of the second connecting seat. Movable grooves are respectively provided inside the right side of the first connecting seat and inside the left side of the second connecting seat. Connecting blocks are respectively fixed to the right side of the first connecting comb tooth and the left side of the second connecting comb tooth.

[0008] Preferably, a plurality of groups of the first connecting comb teeth and the second connecting comb teeth are respectively arranged in equal intervals inside the right side of the first connecting seat and inside the left side of the second connecting seat, and the first connecting comb teeth and the second connecting comb teeth are cross-arranged.

[0009] Preferably, a plurality of groups of movable grooves are arranged at equal intervals inside the first connecting seat and the second connecting seat respectively.

[0010] Preferably, a plurality of groups of threaded holes are respectively arranged inside the left side of the bottom end of the first mounting frame and inside the right side of the bottom end of the second mounting frame, a plurality of groups of first reserved holes are respectively arranged at equal intervals inside the left side of the top end of the first connecting seat and inside the right side of the top end of the second connecting seat, and long connecting bolts are respectively arranged inside the first reserved holes, and the long connecting bolts vertically penetrate the interiors of the first connecting seat and the second connecting seat.

[0011] Preferably, positioning grooves are respectively provided on the right side of the bottom end of the first mounting frame and on the left side of the bottom end of the second mounting frame, and multiple groups of positioning grooves are arranged at equal intervals, and multiple groups of positioning plugs are respectively fixed at equal intervals on the right side of the bottom end of the first connecting seat and the left side of the bottom end of the second connecting seat.

[0012] Preferably, gaskets are respectively provided at the top of the first connecting seat and the second connecting seat, and second reserved holes are evenly spaced inside the top of the gaskets, connecting bolts are provided inside the second reserved holes, and the connecting bolts pass through the inside of the gaskets, screw holes are respectively provided inside the middle positions of the tops of the first connecting seat and the second connecting seat, and multiple groups of screw holes are evenly spaced inside the tops of the first connecting seat and the second connecting seat.

[0013] Preferably, the tops of the first bridge body and the second bridge body are respectively paved with paving layers.

[0014] Preferably, a plurality of groups of connecting steel bars are fixed at equal intervals on the left side of the first mounting frame and the right side of the second mounting frame, a plurality of groups of embedded steel bars are preset at equal intervals inside the right side of the top end of the first bridge body and inside the left side of the top end of the second bridge body, and the inside of the right side of the top end of the embedded steel bars and the inside of the left side of the top end of the second bridge body are filled with filling cement respectively.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the new bridge comb-tooth expansion joint not only facilitates auxiliary sealing of the interior of the expansion joint, facilitates disassembly and assembly of the expansion joint, but also facilitates anti-wear protection of the exterior of the expansion joint;

[0016] (1) By providing a first mounting frame, a first connecting seat, a second connecting seat, a second mounting frame, a first connecting comb tooth, a second connecting comb tooth, a connecting block and a movable groove, when the expansion joint is installed and laid on the bridge deck for use, a plurality of groups of first connecting comb teeth and second connecting comb teeth cross-arranged between the first connecting seat and the second connecting seat can meet some parallel and vertical expansion and contraction requirements when the bridge deck is deformed. At the same time, when the first connecting comb teeth and the second connecting comb teeth are in use, connecting blocks are respectively fixed on the right side of the first connecting comb teeth and the left side of the second connecting comb teeth. After the expansion joint is installed, the connecting blocks can be inserted into the interior of the movable groove accordingly. The gaps between the comb teeth inside the expansion joint can be assisted in filling and sealing by the connecting blocks, and can be moved inside the movable groove accordingly along with the movement of the first connecting comb teeth and the second connecting comb teeth, thereby reducing the entry of some external debris and gravel into the gaps and reducing the blockage inside the expansion joint.

[0017] (2) By providing the first mounting frame, the first connecting seat, the second connecting seat, the second mounting frame, the positioning plug, the positioning groove, the threaded hole, the first reserved hole and the long connecting bolt, when the expansion joint is installed and used, when the expansion joint is damaged, the long connecting bolts provided in the plurality of groups of first reserved holes provided inside the top ends of the first connecting seat and the second connecting seat can be screwed out upward from the inside of the threaded holes, and then the first mounting frame and the first connecting seat and the second connecting seat can be separated respectively, and then the second connecting seat and the first connecting seat can be removed upward from the inside of the second mounting frame and the first mounting frame respectively, and maintenance, inspection and cleaning operations can be performed;

[0018] (3) By providing a first connecting seat, a gasket, a second connecting seat, a second reserved hole, a connecting bolt and a screw hole, when the expansion joint is installed and used, the gasket can be respectively fixed on the top of the first connecting seat and the second connecting seat using a plurality of sets of connecting bolts corresponding to the screw holes. The gasket can then be used to provide external anti-wear protection for the outside of the expansion joint, thereby reducing the wear on the outside of the expansion joint assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the enlarged structure of the connecting block of the utility model from top view;

[0021] Figure 3 It is a schematic diagram of a partially enlarged structure of a movable groove in a side view of the utility model;

[0022] Figure 4 It is a schematic diagram of an enlarged top view of the liner of the utility model.

[0023] In the figure: 1. first bridge body; 2. pavement layer; 3. filling cement; 4. first mounting frame; 5. pad; 6. first connecting seat; 7. second connecting seat; 8. second mounting frame; 9. second bridge body; 10. embedded steel bars; 11. connecting steel bars; 12. positioning groove; 13. positioning plug; 14. threaded hole; 15. first connecting comb teeth; 16. second connecting comb teeth; 17. connecting block; 18. movable groove; 19. first reserved hole; 20. connecting long bolt; 21. second reserved hole; 22. connecting bolt; 23. screw hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1-4 A new type of comb-tooth expansion joint of a bridge comprises a first bridge body 1 and a first mounting frame 4, wherein the first mounting frame 4 is arranged inside the right side of the top of the first bridge body 1, and the first connecting seat 6 is arranged inside the first mounting frame 4, the second bridge body 9 is arranged on the right side of the first bridge body 1, and the second mounting frame 8 is arranged inside the left side of the top of the second bridge body 9, and the second connecting seat 7 is arranged inside the second mounting frame 8, the tops of the first bridge body 1 and the second bridge body 9 are respectively paved with a paving layer 2, a plurality of groups of connecting steel bars 11 are fixed at equal intervals on the left side of the first mounting frame 4 and the right side of the second mounting frame 8, a plurality of groups of embedded steel bars 10 are respectively preset at equal intervals inside the right side of the top of the first bridge body 1 and the left side of the top of the second bridge body 9, the inside of the right side of the top of the embedded steel bars 10 and the inside of the left side of the top of the second bridge body 9 are respectively filled with filling cement 3, and the first connecting seat 6 and the second connecting seat 7 are provided with a blocking structure for assisting in closing the inside of the expansion joint;

[0026] The blocking structure includes a first connecting comb tooth 15, a second connecting comb tooth 16, a connecting block 17 and a movable groove 18. The first connecting comb tooth 15 is fixed to the right side of the first connecting seat 6, and the second connecting comb tooth 16 is fixed to the left side of the second connecting seat 7. The movable groove 18 is respectively opened inside the right side of the first connecting seat 6 and inside the left side of the second connecting seat 7. The connecting block 17 is respectively fixed to the right side of the first connecting comb tooth 15 and the left side of the second connecting comb tooth 16.

[0027] The first connecting comb teeth 15 and the second connecting comb teeth 16 are respectively arranged in a plurality of groups at equal intervals inside the right side of the first connecting seat 6 and the left side of the second connecting seat 7, the first connecting comb teeth 15 and the second connecting comb teeth 16 are arranged crosswise, and the movable grooves 18 are respectively arranged in a plurality of groups at equal intervals inside the first connecting seat 6 and the second connecting seat 7;

[0028] Specifically, Figure 1-Figure 3 As shown, multiple groups of first connecting comb teeth 15 and second connecting comb teeth 16 cross-arranged between the first connecting seat 6 and the second connecting seat 7 can meet some parallel and vertical expansion and contraction requirements when the bridge deck is deformed. At the same time, when the first connecting comb teeth 15 and the second connecting comb teeth 16 are in use, connecting blocks 17 are fixed on the right side of the first connecting comb teeth 15 and the left side of the second connecting comb teeth 16 respectively. After the expansion joint is installed, the connecting blocks 17 can be inserted into the interior of the movable groove 18 accordingly. The gaps between the comb teeth inside the expansion joint can be auxiliary filled and closed by the connecting blocks 17, thereby reducing the entry of some external debris and gravel into the gaps.

[0029] Embodiment 2: A plurality of groups of threaded holes 14 are respectively arranged inside the left side of the bottom end of the first mounting frame 4 and inside the right side of the bottom end of the second mounting frame 8, a plurality of groups of first reserved holes 19 are respectively arranged at equal intervals inside the left side of the top end of the first connecting seat 6 and inside the right side of the top end of the second connecting seat 7, and a connecting long bolt 20 is arranged inside the first reserved hole 19, and the connecting long bolt 20 vertically penetrates the inside of the first connecting seat 6 and the second connecting seat 7 respectively, a positioning groove 12 is respectively opened on the right side of the bottom end of the first mounting frame 4 and on the left side of the bottom end of the second mounting frame 8, and a plurality of groups of positioning grooves 12 are arranged at equal intervals, and a plurality of groups of positioning plugs 13 are respectively fixed on the right side of the bottom end of the first connecting seat 6 and on the left side of the bottom end of the second connecting seat 7 at equal intervals;

[0030] Specifically, Figure 1 and Figure 2 As shown, when the expansion joint is damaged, the long connecting bolts 20 set in the multiple groups of first reserved holes 19 set inside the top of the first connecting seat 6 and the second connecting seat 7 can be respectively screwed out from the inside of the threaded hole 14 upward, and the first mounting frame 4 and the first connecting seat 6 and the second connecting seat 7 and the second mounting frame 8 can be separated respectively. Then, the second connecting seat 7 and the first connecting seat 6 can be respectively removed upward from the inside of the second mounting frame 8 and the first mounting frame 4 for maintenance, inspection, cleaning and other operations.

[0031] Embodiment 3: The top ends of the first connection seat 6 and the second connection seat 7 are respectively provided with gaskets 5, and the top ends of the gaskets 5 are provided with second reserved holes 21 at equal intervals, the second reserved holes 21 are provided with connecting bolts 22, and the connecting bolts 22 penetrate the inside of the gaskets 5, the middle positions of the top ends of the first connection seat 6 and the second connection seat 7 are respectively provided with screw holes 23, and the screw holes 23 are respectively provided in multiple groups at equal intervals inside the top ends of the first connection seat 6 and the second connection seat 7;

[0032] Specifically, Figure 1 and Figure 4 As shown, the set gasket 5 can be fixed on the top of the first connecting seat 6 and the second connecting seat 7 respectively using multiple sets of connecting bolts 22 corresponding to the screw holes 23, and the outside of the expansion joint can be protected from external wear by the set gasket 5.

[0033] Working principle: when the utility model is installed and laid on the bridge deck for use, the multiple groups of first connecting comb teeth 15 and the second connecting comb teeth 16 cross-arranged between the first connecting seat 6 and the second connecting seat 7 can meet some parallel and vertical expansion and contraction requirements when the bridge deck is deformed. At the same time, when the first connecting comb teeth 15 and the second connecting comb teeth 16 are in use, connecting blocks 17 are fixed on the right side of the first connecting comb teeth 15 and the left side of the second connecting comb teeth 16 respectively. The connecting blocks 17 can be inserted into the inside of the movable groove 18 after the expansion joint is installed. The gaps between the comb teeth inside the expansion joint can be auxiliary filled and closed by the connecting blocks 17, so as to reduce the entry of some external debris and gravel into the gaps. When the expansion joint is used after installation, if the expansion joint is damaged, it can be repaired at the first After the long connecting bolts 20 set in the multiple groups of first reserved holes 19 set inside the top of a connecting seat 6 and a second connecting seat 7 are screwed out upward from the inside of the threaded hole 14, the first mounting frame 4 and the first connecting seat 6 and the second connecting seat 7 and the second mounting frame 8 can be separated respectively, and then the second connecting seat 7 and the first connecting seat 6 can be removed upward from the inside of the second mounting frame 8 and the first mounting frame 4 respectively for maintenance, inspection and cleaning. When the expansion joint is installed and used, the set gasket 5 can be fixedly installed on the top of the first connecting seat 6 and the second connecting seat 7 using the multiple groups of connecting bolts 22 corresponding to the screw holes 23 at the top of the first connecting seat 6 and the second connecting seat 7, and the outside of the expansion joint can be protected from external wear by the set gasket 5.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A novel comb-tooth type expansion joint for a bridge, comprising a first bridge body (1) and a first mounting frame (4), characterized in that: A first mounting frame (4) is arranged inside the right side of the top end of the first bridge body (1), and a first connecting seat (6) is arranged inside the first mounting frame (4); a second bridge body (9) is arranged on the right side of the first bridge body (1), and a second mounting frame (8) is arranged inside the left side of the top end of the second bridge body (9), and a second connecting seat (7) is arranged inside the second mounting frame (8); and a blocking structure for assisting in closing the interior of the expansion joint is arranged on the first connecting seat (6) and the second connecting seat (7); The blocking structure comprises a first connecting comb tooth (15), a second connecting comb tooth (16), a connecting block (17) and a movable groove (18); the first connecting comb tooth (15) is fixed to the right side of the first connecting seat (6), the second connecting comb tooth (16) is fixed to the left side of the second connecting seat (7); the movable groove (18) is respectively provided inside the right side of the first connecting seat (6) and inside the left side of the second connecting seat (7); and the connecting block (17) is respectively fixed to the right side of the first connecting comb tooth (15) and the left side of the second connecting comb tooth (16).

2. According to claim 1, the novel bridge comb-tooth expansion joint is characterized by: The first connecting comb teeth (15) and the second connecting comb teeth (16) are respectively arranged in multiple groups at equal intervals inside the right side of the first connecting seat (6) and inside the left side of the second connecting seat (7), and the first connecting comb teeth (15) and the second connecting comb teeth (16) are arranged crosswise.

3. The novel comb-tooth expansion joint for bridges according to claim 1 is characterized in that: The movable grooves (18) are arranged in multiple groups at equal intervals inside the first connecting seat (6) and the second connecting seat (7).

4. The novel comb-tooth expansion joint for bridges according to claim 1 is characterized in that: A plurality of groups of threaded holes (14) are respectively arranged inside the left side of the bottom end of the first mounting frame (4) and inside the right side of the bottom end of the second mounting frame (8), a plurality of groups of first reserved holes (19) are respectively arranged at equal intervals inside the left side of the top end of the first connecting seat (6) and inside the right side of the top end of the second connecting seat (7), and a long connecting bolt (20) is arranged inside the first reserved hole (19), and the long connecting bolt (20) vertically penetrates the inside of the first connecting seat (6) and the inside of the second connecting seat (7), respectively.

5. The novel comb-tooth type expansion joint for bridges according to claim 1 is characterized in that: Positioning grooves (12) are respectively provided on the right side of the bottom end of the first mounting frame (4) and on the left side of the bottom end of the second mounting frame (8), and a plurality of groups of positioning grooves (12) are arranged at equal intervals. A plurality of groups of positioning plugs (13) are respectively fixed at equal intervals on the right side of the bottom end of the first connecting seat (6) and on the left side of the bottom end of the second connecting seat (7).

6. The novel comb-tooth expansion joint for bridges according to claim 1 is characterized in that: The top ends of the first connecting seat (6) and the second connecting seat (7) are respectively provided with gaskets (5), and the top ends of the gaskets (5) are provided with second reserved holes (21) at equal intervals, the second reserved holes (21) are provided with connecting bolts (22), and the connecting bolts (22) penetrate the inside of the gaskets (5), and the middle positions of the top ends of the first connecting seat (6) and the second connecting seat (7) are respectively provided with screw holes (23), and a plurality of groups of screw holes (23) are respectively provided at equal intervals inside the top ends of the first connecting seat (6) and the second connecting seat (7).

7. The novel comb-tooth expansion joint for bridges according to claim 1 is characterized in that: The tops of the first bridge body (1) and the second bridge body (9) are respectively paved with a paving layer (2).

8. The novel comb-tooth expansion joint for bridges according to claim 1 is characterized by: A plurality of groups of connecting steel bars (11) are fixed at equal intervals on the left side of the first mounting frame (4) and the right side of the second mounting frame (8), and a plurality of groups of embedded steel bars (10) are preset at equal intervals inside the right side of the top end of the first bridge body (1) and inside the left side of the top end of the second bridge body (9), respectively. The inside of the right side of the top end of the embedded steel bars (10) and the inside of the left side of the top end of the second bridge body (9) are filled with filling cement (3).

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