A sealing and protective structure for expansion joints of municipal roads and bridges

Abstract

This utility model belongs to the technical field of expansion joint structure, specifically disclosing a sealing and protective structure for expansion joints of municipal roads and bridges. It includes a rubber sheet, with side beam steel sections fixedly fastened to both sides of the rubber sheet. Steel plates are welded to the front and rear sides of the side beam steel sections. A protrusion is fixed at the center of the side of the side beam steel section, and a locking block is fixed above the side of the side of the side beam steel section. This sealing and protective structure for expansion joints of municipal roads and bridges solves the problem of inconvenient rubber strip fixing by setting grooves between the locking block, the side beam steel section, and the protrusion. The rubber sheet is folded on both sides and inserted into the grooves, with limiting pieces inserted into the gaps between the folds. The locking frame is then wrapped around the front and rear of the rubber sheet, secured with bolts, and the screw rod installed in the screw hole presses the pressure plate against the rubber sheet for fixation.

Description

Technical Field

[0001] This utility model relates to the field of expansion joint structure technology, specifically a sealing and protection structure for expansion joints of municipal roads and bridges. Background Technology

[0002] Expansion joints are structures commonly used in building construction to connect adjacent slabs. If changes in the surrounding temperature and humidity cause adjacent slabs to expand and contract, expansion joints can alleviate this, preventing the slabs from colliding and squeezing each other or separating due to widening cracks.

[0003] Traditional expansion joint structures are surrounded by steel plates and reinforcing bars, which can be inserted and fixed to the pre-reserved reinforcing bars of the building slabs, and then sealed with cement mortar. However, such expansion joint structures often lack the fixation of the internal rubber strips, which are only glued or clipped together. They are extremely easy to fall off their original installation position, and if damaged, they need to be replaced with new rubber strips.

[0004] Now, a novel sealing and protection structure for expansion joints of municipal roads and bridges is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a sealing and protective structure for expansion joints of municipal roads and bridges, so as to solve the problem of inconvenient fixing of rubber strips mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sealing and protective structure for expansion joints of municipal roads and bridges, comprising a rubber sheet, on both sides of which a side beam steel is respectively clamped and fixed, and steel plates are welded between the front and rear sides of the side beam steel. A protrusion is fixed at the center of the side side of the side beam steel, and a locking block is fixed above the side side of the side beam steel. A locking groove is provided between the locking block, the side beam steel, and the protrusion. A threaded groove is provided at the front and rear ends of the protrusion, and a locking frame is clamped and fixed on the outer side between the front and rear threaded grooves. A bolt is threadedly connected to the front and rear ends of the outer side of the locking frame. A screw hole is provided at the front and rear ends of the inner side of the locking frame, and a threaded rod is threadedly connected to the screw hole. A pressure plate is movably connected to the side between the front and rear threaded rods. A limit plate is fixed between the front and rear ends of the inner side of the steel plate.

[0007] As a further technical solution of this utility model, both sides of the rubber sheet are embedded between the protrusion and the pressure plate, and the limiting pieces are all embedded in the bends on both sides of the rubber sheet.

[0008] As a further technical solution of this utility model, a groove is provided on the outer side of the side beam steel, and a steel bar is fixedly inserted in the groove. Two sets of sleeve blocks are sleeved on the outer side of the steel bar. Two bolts are threaded to the front and rear ends of the sleeve blocks respectively. Two sets of positioning holes are provided on the inner side of the groove.

[0009] As a further technical solution of this utility model, the side of the bolt body is embedded in the positioning hole, and the inner diameter of the sleeve block matches the reinforcing bar.

[0010] As a further technical solution of this utility model, a transverse groove is provided on the upper part of the side beam steel, and an elastic piece is fixed on the inner side of the transverse groove, and a dustproof net is fixed at the center between the elastic pieces on both sides.

[0011] As a further technical solution of this utility model, the elastic sheet is symmetrically fixed on both sides of the dustproof net, and the elastic sheet moves horizontally in and out of the transverse groove with the dustproof net.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this sealing and protective structure for expansion joints of municipal roads and bridges not only prevents the rubber strips from loosening on both sides and facilitates the assembly of reinforcing bars, but also achieves dust protection;

[0013] (1) By setting a slot between the card block and the side beam steel and the protrusion, the two sides of the rubber sheet are folded and inserted into the slot respectively. The gap between the folded sides of the rubber sheet is also connected by the limiting piece. Align the protrusions at the front and rear ends, wrap the card frame around the front and rear of the rubber sheet, and then lock it with a bolt. Turn the screw installed in the screw hole to press the pressure plate against the rubber sheet for fixing. This can prevent the rubber sheet from detaching from the side beam steel in the expansion joint structure.

[0014] (2) By fixing and inserting reinforcing bars in the groove, the side of the reinforcing bars is attached to the groove on the outer surface of the side beam steel, the positioning holes at the top and bottom are aligned and the sleeve blocks are inserted. The bolts at the front and rear ends of the sleeve blocks are screwed into the positioning holes laterally to lock them, the side of the reinforcing bars is fixed in the side beam steel, and then buried between the plates on both sides. Then, concrete grout is used for injection and reinforcement, which can prevent the reinforcing bars from shifting during the solidification of the concrete grout.

[0015] (3) A dustproof net is fixed at the center between the elastic plates on both sides. A dustproof net is installed between the symmetrical side beams. This object is located above the side beams on both sides. The left and right sides of the dustproof net are fixed in the horizontal groove by elastic plates. If the side beams, steel plates and other objects on both sides are stretched and contracted as the building slabs move, the elastic plates can generate elastic force from both sides and adjust the length of the dustproof net. The top of the rubber sheet blocks dust and particles and provides protection. Attached Figure Description

[0016] Figure 1 This is a frontal cross-sectional view of the present invention.

[0017] Figure 2 This is a top view of the structure of this utility model;

[0018] Figure 3 This is a front view cross-sectional structural diagram of the side beam steel of this utility model;

[0019] Figure 4 For the present utility model Figure 1 A magnified schematic diagram of a partial cross-section at point A in the middle.

[0020] In the diagram: 1. Side beam steel; 2. Steel plate; 3. Reinforcing bar; 4. Rubber sheet; 5. Clip frame; 6. Groove; 7. Bolt 1; 8. Horizontal groove; 9. Elastic sheet; 10. Dustproof net; 11. Clip groove; 12. Clip block; 13. Protrusion; 14. Positioning hole; 15. Bolt 2; 16. Limiting plate; 17. Threaded groove; 18. Pressure plate; 19. Lead screw; 20. Screw hole; 21. Sleeve block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 An embodiment of this utility model provides a sealing and protective structure for expansion joints of municipal roads and bridges, including a rubber sheet 4. Side beam steel 1 is respectively snapped and fixed on both sides of the rubber sheet 4, and steel plates 2 are welded between the front and rear sides of the side beam steel 1. A protrusion 13 is fixed at the center of the side of the side beam steel 1, and a locking block 12 is fixed above the side of the side of the side beam steel 1. A locking groove 11 is provided between the locking block 12, the side beam steel 1, and the protrusion 13. A threaded groove 17 is provided at the front and rear ends of the protrusion 13, and a locking frame 5 is snapped and fixed on the outer side between the front and rear threaded grooves 17. Bolts 7 are threadedly connected to the front and rear ends of the outer side of the locking frame 5. Screw holes 20 are provided at the front and rear ends of the inner side of the locking frame 5, and threaded rods 19 are threadedly connected in the screw holes 20. A pressure plate 18 is movably connected to the side between the front and rear threaded rods 19. Limiting plates 16 are fixed between the front and rear ends of the inner side of the steel plate 2.

[0023] Both sides of the rubber sheet 4 are embedded between the protrusion 13 and the pressure plate 18, and the limiting plates 16 are embedded in the bends on both sides of the rubber sheet 4.

[0024] Specifically, such as Figure 1 , Figure 3 and Figure 4As shown, the two sides of the rubber sheet 4 are folded and inserted into the slot 11. The gaps between the folds on both sides of the rubber sheet 4 are also connected by the limiting piece 16. Align the protrusions 13 at the front and rear ends, wrap the frame 5 around the front and rear of the rubber sheet 4, and then lock it with bolt 7. Turn the screw 19 installed in the screw hole 20 to press the pressure plate 18 against the rubber sheet 4 for fixation.

[0025] The outer side of the side beam steel 1 is provided with a groove 6, and a steel bar 3 is fixedly inserted in the groove 6. Two sets of sleeve blocks 21 are sleeved on the outer side of the steel bar 3. Bolts 15 are threaded to the front and rear ends of the sleeve blocks 21 respectively. Two sets of positioning holes 14 are provided on the inner side of the groove 6. The side of the bolt 15 is embedded in the positioning hole 14. The inner diameter of the sleeve block 21 matches the steel bar 3.

[0026] Specifically, such as Figure 1 and Figure 3 As shown, the side of the reinforcing bar 3 is attached to the groove 6 on the outer surface of the side beam steel 1, the positioning holes 14 at the top and bottom are aligned and the sleeve block 21 is inserted, and the bolts 15 at the front and rear ends of the sleeve block 21 are screwed horizontally into the positioning holes 14 to lock it, thus fixing the side of the reinforcing bar 3 in the side beam steel 1, and then embedding it between the plates on both sides, and then reinforcing it with concrete grout.

[0027] The upper part of the side beam steel 1 is provided with a transverse groove 8, and an elastic piece 9 is fixed on the inner side of the transverse groove 8. A dustproof net 10 is fixed at the center between the two elastic pieces 9. The elastic pieces 9 are symmetrically fixed on both sides of the dustproof net 10. The elastic pieces 9 move horizontally in and out of the transverse groove 8 with the dustproof net 10.

[0028] Specifically, such as Figure 1 and Figure 2 As shown, a dustproof net 10 is installed between the symmetrical side beam steel 1. This object is located above the side beam steel 1 on both sides. The left and right sides of the dustproof net 10 are fixed in the transverse groove 8 by elastic plates 9. If the side beam steel 1, steel plate 2 and other objects on both sides are stretched and contracted as the building slab moves, the elastic plates 9 can generate elastic force from both sides and adjust the length of the dustproof net 10.

[0029] Working principle: When using this utility model, firstly, fold both sides of the rubber sheet 4 and insert them into the slots 11. The gaps between the folds on both sides of the rubber sheet 4 are also connected by the limiting pieces 16. Align the protrusions 13 at both ends, wrap the frame 5 around the front and back of the rubber sheet 4, and then lock it with bolt 7. Turn the screw 19 installed in the screw hole 20 to press the pressure plate 18 against the rubber sheet 4 for fixation. Then, attach the side of the reinforcing bar 3 to the groove 6 on the outer surface of the side beam steel 1, align the positioning holes 14 at the top and bottom and insert the sleeve 21. Then, tighten the bolts 2 at both ends of the sleeve 21. 15. Screw the steel bar 3 horizontally into the positioning hole 14 to lock it in place. Fix the side of the steel bar 3 in the side beam steel 1, and then embed it between the plates on both sides. Then reinforce it with concrete grout. A dustproof net 10 is installed between the symmetrical side beam steel 1. This object is located above the side beam steel 1 on both sides. The left and right sides of the dustproof net 10 are fixed in the transverse groove 8 by elastic plates 9. If the side beam steel 1, steel plate 2 and other objects on both sides are stretched and contracted as the building plates move, the elastic plates 9 can generate elasticity from both sides and adjust the length of the dustproof net 10. The top of the rubber sheet 4 blocks dust and particles and provides protection.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A municipal road and bridge expansion joint sealing protection structure comprising a rubber sheet (4), characterized in that: The rubber sheet (4) is fixed with side beam steel (1) on both sides, and steel plates (2) are welded between the front and back sides of the side beam steel (1). A protrusion (13) is fixed at the center of the side of the side beam steel (1). A locking block (12) is fixed above the side of the side of the side beam steel (1). A locking groove (11) is provided between the locking block (12), the side beam steel (1), and the protrusion (13). A threaded groove (17) is provided at the front and rear ends of the protrusion (13). A locking frame (5) is fixed between the front and back threaded grooves (17). A bolt (7) is threaded to the front and back ends of the locking frame (5). A screw hole (20) is provided at the front and back ends of the locking frame (5). A threaded rod (19) is threaded in the screw hole (20). A pressure plate (18) is movably connected between the front and back threads (19). A limit plate (16) is fixed between the front and back sides of the side of the steel plate (2).

2. The municipal road and bridge expansion joint sealing protection structure according to claim 1, characterized in that: Both sides of the rubber sheet (4) are embedded between the protrusion (13) and the pressure plate (18), and the limiting piece (16) is embedded at the bend on both sides of the rubber sheet (4).

3. The municipal road and bridge expansion joint sealing protection structure according to claim 1, characterized in that: The outer side of the side beam steel (1) is provided with a groove (6), and a steel bar (3) is fixedly inserted in the groove (6). Two sets of sleeve blocks (21) are sleeved on the outer side of the steel bar (3). The front and rear ends of the sleeve block (21) are respectively threaded with bolts (15). Two sets of positioning holes (14) are provided on the inner side of the groove (6).

4. The municipal road and bridge expansion joint sealing protection structure according to claim 3, characterized in that: The side of the bolt (15) is embedded in the positioning hole (14), and the inner diameter of the sleeve (21) matches the reinforcing bar (3).

5. The municipal road and bridge expansion joint sealing protection structure according to claim 1, characterized in that: The upper part of the side beam steel (1) is provided with a transverse groove (8), and an elastic piece (9) is fixed on the inner side of the transverse groove (8). A dustproof net (10) is fixed at the center between the elastic pieces (9) on both sides.

6. The municipal road and bridge expansion joint sealing protection structure according to claim 5, characterized in that: The elastic sheet (9) is symmetrically fixed on both sides of the dustproof net (10), and the elastic sheet (9) moves horizontally in and out of the transverse groove (8) along with the dustproof net (10).

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