Articulated beam seam expansion device

Abstract

According to the hinged type beam seam telescopic device, a beam seam is a gap between a first beam body and a second beam body, a plurality of embedded supporting beams are fixed to the first beam body, the telescopic direction of the beam seam is the x direction, the length direction of the beam seam is the y direction, and the embedded supporting beams are arranged in the X direction; a mounting gap is formed between every two adjacent pre-embedded supporting beams in the y direction, and sliding bearing plates extend out of the bottoms of the two side edges of the multiple pre-embedded supporting beams in the y direction; an inverted U-shaped joint-crossing sliding beam is correspondingly buckled on the pre-embedded supporting beam, a side plate of the inverted U-shaped joint-crossing sliding beam abuts against the sliding bearing plate in a sliding mode, the side plate gap of the inverted U-shaped joint-crossing sliding beam is installed in the installation gap, and one end of the inverted U-shaped joint-crossing sliding beam is hinged to the second beam body. The requirements for transverse and longitudinal displacement and corner of the two beam bodies can be met, and installation and maintenance are convenient.

Description

Technical Field

[0001] The utility model relates to an articulated beam joint expansion and contraction device, belonging to the technical field of bridges. Background Art

[0002] An expansion joint is a structural joint set up at an appropriate position along the construction joint direction of a building or structure to prevent cracks or damage to the structure due to thermal expansion and contraction caused by climate and temperature changes. An expansion joint divides building components above the foundation, such as walls, floor slabs, and roofs, into two independent parts, allowing the building or structure to expand and contract horizontally along the length. Long and continuous bridges have a large expansion and contraction deformation. At present, this type of large displacement expansion joint generally uses a combined steel expansion device with an expansion box. The large displacement steel expansion device has a complex structure, many parts, and a large workload for on-site installation. In addition, its rubber strip is a wearing part that requires frequent maintenance and replacement, and later maintenance is more complicated.

[0003] The prior art CN110230256A is an expansion joint device, in which the recessed portion filled with a waterproof tape in the expansion joint can prevent moisture from passing through the recessed portion and penetrating into the expansion joint; and when the left bridge body and the right bridge body undergo mutual expansion and contraction displacement, the recessed portion formed in the middle portion of the waterproof tape can play an effective buffering role, but the service life is short and it is not suitable for use in the expansion joints of long and continuous bridges.

[0004] Therefore, there is an urgent need for a longitudinal large displacement telescopic device that can adapt to extra-long bridges, tunnels and other structures, can meet a small amount of horizontal and vertical displacement and angle requirements, and at the same time has the advantages of simple structure, small number of parts, easy installation, no wearing parts, and simple later maintenance. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an articulated beam joint expansion and contraction device, which can meet the requirements of lateral, vertical and longitudinal displacement and rotation of two beam bodies and is easy to install and maintain.

[0006] The utility model solves the above technical problems with the following technical solutions: an articulated beam gap expansion and contraction device, wherein the beam gap is formed by a gap between a first beam body and a second beam body arranged at intervals, and the articulated beam gap expansion and contraction device spans the beam gap and connects the first beam body and the second beam body, comprising:

[0007] A plurality of long strip-shaped embedded support beams, wherein the plurality of embedded support beams are fixed on the first beam body, the expansion and contraction direction of the beam gap is the x direction, the length direction of the beam gap is the y direction, the plurality of embedded support beams are arranged along the x direction, two adjacent embedded support beams have an installation gap in the y direction, and the bottoms of both sides of the plurality of embedded support beams extend sliding receiving plates along the y direction;

[0008] A plurality of inverted U-shaped cross-seam sliding beams are buckled on the plurality of embedded support beams one by one, and their side plates slide against the sliding receiving plates, the side plate gap of the inverted U-shaped cross-seam sliding beam is installed in the installation gap, and one end of the inverted U-shaped cross-seam sliding beam is hinged on the second beam body.

[0009] The beneficial effects of the utility model are as follows: the embedded support beam is fixed on the first beam body, the inverted U-shaped cross-gap sliding beam is buckled and slidably connected to the embedded support beam and one end is hinged to the second beam body, the embedded support beam and the inverted U-shaped cross-gap sliding beam can cover the beam seam and support vehicles passing over the beam seam, and the side plate gaps of multiple inverted U-shaped cross-gap sliding beams are installed in the installation gap between the two embedded support beams, which can provide deflection space when the first beam body and the second beam body are deflected.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, a plurality of the sliding receiving plates are fixed on the first beam body and fixedly connected at both sides to form a fixed plate, and one end of the inverted U-shaped cross-seam sliding beam away from the second beam body is in sliding contact with the fixed plate.

[0012] The beneficial effect of adopting the above further solution is that the sliding receiving plates are fixedly connected to form a fixed plate, which can improve the overall strength.

[0013] Furthermore, it also includes a hinge, which includes an embedded part, an L-shaped plate and a limiting strip. The embedded part is embedded and fixed on the second beam body, the longitudinal plate of the L-shaped plate is fixed on the embedded part, the limiting strip is fixed on the transverse plate of the L-shaped plate, and a hinge groove is formed between the limiting strip and the longitudinal plate of the L-shaped plate. The bottom of the multiple inverted U-shaped cross-seam sliding beams are fixed with a hinge protrusion, and the hinge protrusion is hinged to the hinge groove.

[0014] The beneficial effects of adopting the above-mentioned further scheme are as follows: the hinge protrusion gap is inserted into the hinge groove, and there is a movable gap between the hinge protrusion and the hinge groove, but the hinge groove can limit the movement of the hinge protrusion within a small range, so that the inverted U-shaped cross-seam sliding beam can change its own inclination angle, increase the degree of freedom, do not affect the slight shaking between the first beam body and the second beam body, and is simple to install.

[0015] Furthermore, it also includes a plurality of scraper assemblies for scraping off foreign matter on the sliding receiving plate, and the plurality of scraper assemblies are correspondingly installed on the side plate ends of the plurality of inverted U-shaped cross-seam sliding beams.

[0016] The beneficial effect of adopting the above further solution is: preventing foreign matter from affecting the sliding of the inverted U-shaped cross-gap sliding beam, avoiding hindering the expansion and contraction of the beam gap.

[0017] Furthermore, the scraper assembly includes a scraper and a tension spring, the tail of the scraper is rotatably connected to the end of the side plate of the inverted U-shaped cross-slot sliding beam, one end of the tension spring is fixedly connected to the tip of the scraper, and the other end is fixedly connected to the end of the side plate of the inverted U-shaped cross-slot sliding beam so that the tip of the scraper is always in contact with the fixed plate.

[0018] The beneficial effect of adopting the above further solution is that the stretch spring tightens the scraper so that the tip of the scraper can always abut against the fixed plate, thereby cleaning up the debris on the moving path of the inverted U-shaped cross-seam sliding beam.

[0019] Furthermore, the embedded support beam and the inverted U-shaped cross-seam sliding beam are both arranged tilted and in opposite directions.

[0020] The beneficial effect of adopting the above further solution is that the embedded support beam and the inverted U-shaped cross-seam sliding beam are arranged in opposite inclination directions, which is conducive to adapting to the vertical relative displacement between the first beam body and the second beam body.

[0021] Furthermore, the embedded support beam is inclined downward from the first beam body to the second beam body, and the inverted U-shaped cross-seam sliding beam is inclined downward from the second beam body to the first beam body.

[0022] Furthermore, the slope α of the embedded support beam is ±1-5%.

[0023] Furthermore, the slope β of the inverted U-shaped cross-slot sliding beam is ±1-5%. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of an articulated beam gap expansion and contraction device provided by the utility model when the beam gap becomes larger;

[0025] Figure 2 for Figure 1 A magnified view of part A;

[0026] Figure 3 A structural schematic diagram of an articulated beam gap expansion and contraction device provided by the utility model when the beam gap becomes smaller;

[0027] Figure 4 A schematic diagram of the structure of a pre-embedded support beam, an inverted U-shaped cross-gap sliding beam and a fixed plate in an articulated beam gap expansion and contraction device provided by the utility model;

[0028] Figure 5 A partial exploded view of an articulated beam joint expansion and contraction device provided by the utility model;

[0029] Figure 6 for Figure 5 A magnified view of part B;

[0030] Figure 7 The utility model provides a structural schematic diagram of a hinged beam gap expansion and contraction device when the first beam body and the second beam body are deflected.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1. Embedded support beam; 2. Inverted U-shaped cross-gap sliding beam; 3. First beam body; 4. Second beam body; 5. Installation gap; 6. Beam gap; 7. Fixed plate; 8. Hinge; 81. Embedded part; 82. L-shaped plate; 83. Limiting plate strip; 84. Hinge groove; 85. Hinge protrusion; 9. Scraper assembly; 91. Scraper; 92. Tension spring. DETAILED DESCRIPTION

[0033] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0034] The utility model aims to provide an articulated beam joint expansion and contraction device to solve the problems existing in the prior art, which can meet the requirements of lateral, vertical and longitudinal displacement and rotation of two beams and is easy to install and maintain.

[0035] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0036] The utility model provides a hinged beam joint expansion and contraction device, such as Figures 1 to 7 As shown, the beam gap 6 is a gap between the first beam body 3 and the second beam body 4, and the articulated beam gap expansion and contraction device spans the beam gap 6 and connects the first beam body 3 and the second beam body 4, including:

[0037] A plurality of long strip-shaped embedded support beams 1 are fixed on the first beam body 3, the expansion and contraction direction of the beam seam 6 is the x direction, the length direction of the beam seam 6 is the y direction, the plurality of embedded support beams 1 are arranged along the x direction, two adjacent embedded support beams 1 have an installation gap 5 in the y direction, and the bottoms of both sides of the plurality of embedded support beams 1 extend sliding receiving plates along the y direction;

[0038] A plurality of inverted U-shaped cross-seam sliding beams 2 are buckled one by one on a plurality of embedded support beams 1, and their side plates are slidably abutted on the sliding receiving plates, the side plate gap of the inverted U-shaped cross-seam sliding beam 2 is installed in the installation gap 5, and one end of the inverted U-shaped cross-seam sliding beam 2 is hinged on the second beam body 4.

[0039] The articulated beam gap expansion and contraction device provided by the utility model fixes the embedded support beam 1 on the first beam body 3, and the inverted U-shaped cross-gap sliding beam 2 is buckled and slidably connected to the embedded support beam 1 and one end is hinged to the second beam body 4. The embedded support beam 1 and the inverted U-shaped cross-gap sliding beam 2 can cover the beam gap 6 and support the vehicles passing over the beam gap 6. The side plate gap of multiple inverted U-shaped cross-gap sliding beams 2 is installed in the installation gap 5 between the two embedded support beams 1, which can provide a deflection space for the first beam body 3 and the second beam body 4 when they deflect along the Z direction.

[0040] Preferably, there is a movable gap between the inner wall of the side plate of the inverted U-shaped cross-gap sliding beam 22 and the outer wall of the embedded support beam 11, which can enable the inverted U-shaped cross-gap sliding beam 22 to turn slightly.

[0041] In a specific embodiment of the utility model, a plurality of sliding receiving plates are fixed on the first beam body 3 and fixedly connected on both sides to form a fixed plate 7, and one end of the inverted U-shaped cross-seam sliding beam 2 away from the second beam body 4 is slidably abutted against the fixed plate 7.

[0042] The fixed connection of the sliding receiving plates to form the fixed plate 7 can improve the overall strength.

[0043] In a specific embodiment of the utility model, it also includes a hinge 8, which includes an embedded part 81, an L-shaped plate 82 and a limiting strip 83. The embedded part 81 is embedded and fixed on the second beam body 4, the longitudinal plate of the L-shaped plate 82 is fixed on the embedded part 81, the limiting strip 83 is fixed on the transverse plate of the L-shaped plate 82, and a hinge groove 84 is formed between the limiting strip 83 and the longitudinal plate of the L-shaped plate 82. A hinge protrusion 85 is fixed to the bottom of the multiple inverted U-shaped cross-seam sliding beams 2, and the hinge protrusion 85 is hinged to the hinge groove 84.

[0044] The hinge protrusion 85 is inserted into the hinge groove 84 with a gap, and there is a movable gap between the hinge protrusion 85 and the hinge groove 84, but the hinge groove 84 can limit the movement of the hinge protrusion 85 within a small range, so that the inverted U-shaped cross-seam sliding beam 2 can change its own inclination angle, increase the degree of freedom, do not affect the slight shaking between the first beam body 3 and the second beam body 4, and is simple to install.

[0045] In a specific embodiment of the utility model, it also includes a plurality of scraper assemblies 9 for scraping foreign matter off the sliding receiving plate, and the plurality of scraper assemblies 9 are correspondingly installed at the end portions of the side plates of the plurality of inverted U-shaped cross-gap sliding beams 2.

[0046] Prevent foreign matter from affecting the sliding of the inverted U-shaped cross-gap sliding beam 2 and avoid hindering the expansion and contraction of the beam gap 6.

[0047] In a specific embodiment of the utility model, the scraper assembly 9 includes a scraper 91 and a tension spring 92. The tail of the scraper 91 is rotatably connected to the side plate end of the inverted U-shaped cross-slot sliding beam 2. One end of the tension spring 92 is fixedly connected to the tip of the scraper 91, and the other end is fixedly connected to the side plate end of the inverted U-shaped cross-slot sliding beam 2 so that the tip of the scraper 91 is always in contact with the fixed plate 7.

[0048] The extension spring 92 tightens the scraper 91 so that the tip of the scraper can always abut against the fixed plate 7 to clean up the debris on the moving path of the inverted U-shaped cross-slot sliding beam 2.

[0049] Preferably, in order to prevent rainwater and sewage from corroding the expansion and contraction device of the hinged beam joint 6, anti-corrosion can be performed by applying waterproof ointment.

[0050] In a specific embodiment of the utility model, the embedded support beam 1 and the inverted U-shaped cross-seam sliding beam 2 are both arranged tilted and in opposite directions.

[0051] The embedded support beam 1 and the inverted U-shaped cross-seam sliding beam 2 are arranged in opposite inclination directions, which is conducive to adapting to the vertical relative displacement between the first beam body 3 and the second beam body 4.

[0052] In a specific embodiment of the utility model, the embedded support beam 1 is inclined downward from the first beam body 3 to the second beam body 4, and the inverted U-shaped cross-seam sliding beam 2 is inclined downward from the second beam body 4 to the first beam body 3.

[0053] In a specific embodiment of the utility model, the slope α of the embedded support beam 1 is ±1-5%.

[0054] In a specific embodiment of the utility model, the slope β of the inverted U-shaped cross-slot sliding beam 2 is ±1-5%.

[0055] If the top surfaces of the first beam body 3 and the second beam body 4 are horizontal, the slope can be set at ±1 to 5% depending on the amount of expansion and contraction. The slope is large when the expansion and contraction is small, and small when the expansion and contraction is large. The slopes α and β are opposite. If the top surfaces of the first beam body 3 and the second beam body 4 are not horizontal, the slopes α and β can be rotated together with the top surface line of the beam.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An articulated beam gap expansion and contraction device, wherein the beam gap is a gap between a first beam body (3) and a second beam body (4) arranged in parallel with each other, the articulated beam gap expansion and contraction device spans the beam gap (6) and connects the first beam body (3) and the second beam body (4), characterized in that: include: A plurality of long strip-shaped embedded support beams (1), wherein the plurality of embedded support beams (1) are fixed on the first beam body (3), the expansion and contraction direction of the beam gap (6) is the x direction, the length direction of the beam gap (6) is the y direction, the plurality of embedded support beams (1) are arranged along the x direction, two adjacent embedded support beams (1) have an installation gap (5) in the y direction, and sliding receiving plates are extended from the bottom of both sides of the plurality of embedded support beams (1) in the y direction; A plurality of inverted U-shaped cross-gap sliding beams (2), the plurality of inverted U-shaped cross-gap sliding beams (2) are buckled on the plurality of pre-embedded support beams (1) in a one-to-one correspondence, and the side plates thereof are slidably abutted against the sliding receiving plate, the side plate gap of the inverted U-shaped cross-gap sliding beam (2) is installed in the installation gap (5), and one end of the inverted U-shaped cross-gap sliding beam (2) is hinged on the second beam body (4).

2. The articulated beam joint expansion and contraction device according to claim 1, characterized in that: A plurality of sliding receiving plates are fixed on the first beam body (3) and are fixedly connected at both sides to form a fixed plate (7); one end of the inverted U-shaped cross-seam sliding beam (2) away from the second beam body (4) is in sliding contact with the fixed plate (7).

3. The articulated beam joint expansion and contraction device according to claim 2, characterized in that: The invention also comprises a hinge (8), wherein the hinge (8) comprises an embedded part (81), an L-shaped plate (82) and a limiting plate strip (83), wherein the embedded part (81) is embedded and fixed on the second beam body (4), the longitudinal plate of the L-shaped plate (82) is fixed on the embedded part (81), the limiting plate strip (83) is fixed on the transverse plate of the L-shaped plate (82), and a hinge groove (84) is formed between the limiting plate strip (83) and the longitudinal plate of the L-shaped plate (82), and a hinge protrusion (85) is fixed on the bottom of each of the inverted U-shaped cross-seam sliding beams (2), and the hinge protrusion (85) is hinged to the hinge groove (84).

4. The articulated beam joint expansion and contraction device according to claim 2, characterized in that: It also comprises a plurality of scraper assemblies (9) for scraping off foreign matter on the sliding receiving plate, wherein the plurality of scraper assemblies (9) are correspondingly mounted on the end portions of the side plates of the plurality of inverted U-shaped cross-gap sliding beams (2).

5. The articulated beam joint expansion and contraction device according to claim 4, characterized in that: The scraper assembly (9) comprises a scraper (91) and a tension spring (92); the tail of the scraper (91) is rotatably connected to the end of the side plate of the inverted U-shaped cross-slot sliding beam (2); one end of the tension spring (92) is fixedly connected to the tip of the scraper (91), and the other end is fixedly connected to the end of the side plate of the inverted U-shaped cross-slot sliding beam (2) so that the tip of the scraper (91) is always in contact with the fixed plate (7).

6. The articulated beam joint expansion and contraction device according to claim 1, characterized in that: The embedded support beam (1) and the inverted U-shaped cross-seam sliding beam (2) are both arranged tilted and in opposite directions.

7. The articulated beam joint expansion and contraction device according to claim 6, characterized in that: The embedded support beam (1) is inclined downwardly in a direction from the first beam body (3) to the second beam body (4), and the inverted U-shaped cross-seam sliding beam (2) is inclined downwardly in a direction from the second beam body (4) to the first beam body (3).

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