An assembled rotating bridge

Abstract

The present invention discloses an assembled rotating bridge, which belongs to the technical field of bridge construction and comprises: a bridge body, a prefabricated connecting plate installed between two adjacent bridge bodies, support positions provided at both ends of the bridge body, a T-shaped closing gap formed by the support positions between the two adjacent bridge bodies and matched with the prefabricated connecting plate, a casting trough provided on the prefabricated connecting plate, a plurality of sliding holes connected with the casting trough provided on the prefabricated connecting plate close to the bridge body, a spirally arranged connecting column slidably installed in the sliding hole, a steel bar installed in the connecting column, and a connecting hole matched with the connecting column provided on the bridge body. The present invention ensures that the concrete can fill the sliding hole and the connecting hole when pouring concrete by providing a spiral connecting column, avoiding the gap inside the sliding hole and the connecting hole caused by direct pouring, which affects the stability of the structure; the steel bar is provided inside the connecting column to avoid corrosion or bending caused by the exposed steel bar during construction.

Description

Technical Field

[0001] The present invention belongs to the technical field of bridge construction, and in particular relates to an assembled rotating bridge. Background Art

[0002] When conventional rotating bridges are rotated and closed, in order to prevent interference between adjacent bridges during rotation, a wide closing gap must be reserved and concrete must be poured in the closing section, which complicates the subsequent pouring of the closing section.

[0003] In the prior art, Chinese patent publication number CN 111893900 B discloses an assembled rotating bridge. The assembled bridge is assembled and closed using an assembly plate. Concrete is poured into the through grooves and connecting grooves through grouting grooves on the assembly plate, forming a fixed connection with the connecting steel bars to ensure the stability of the assembled rotating bridge. However, during the pouring process, the concrete in the grouting grooves has difficulty flowing into the through grooves and connecting grooves, which can easily lead to gaps in the concrete in the through grooves and connecting grooves, and easily cause an unstable connection between the rotating bridge and the assembly plate.

[0004] Therefore, it is necessary to propose an assembled rotating bridge to solve the above problems. Summary of the Invention

[0005] In view of this, an object of the present invention is to provide an assembled rotating bridge to solve the problem of unstable connection between the rotating bridge and the assembly plate in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention provides an assembled rotating bridge, comprising: a bridge body, a prefabricated connecting plate installed between two adjacent bridge bodies, support positions connected to the bridge body as a whole are provided at both ends of the bridge body, when the two adjacent bridge bodies are closed, a T-shaped closing gap is formed by the support positions, the prefabricated connecting plate cooperates with the closing gap, a casting groove is provided on the prefabricated connecting plate, a plurality of sliding holes connected to the casting groove are provided on the side of the prefabricated connecting plate close to the bridge body, spirally arranged connecting columns are slidably installed in the sliding holes, steel bars are installed in the connecting columns, and a plurality of steel bars are arranged in a circular ring inside the connecting columns, and the bridge body is provided with connecting holes cooperating with the connecting columns;

[0008] When closing adjacent bridge bodies, first close and align the adjacent bridge bodies to form a T-shaped closing gap, then install the prefabricated connecting plate in the closing gap, and then move the connecting column located in the sliding hole to make the connecting column slide into the connecting hole and abut. At this time, there is a gap between the connecting column away from the end of the connecting hole and the inner wall of the casting trough, and then pour concrete into the casting trough and rotate the connecting column to make the concrete fill the sliding hole and the connecting hole.

[0009] Furthermore, a worm gear is fixedly installed at the end of the connecting column away from the connecting hole, and a worm that can mesh with the worm gear is detachably installed in the casting trough, and the worm is located above the connecting column;

[0010] When the connecting post slides to abut against the inner wall of the connecting hole, the worm wheel and the worm are engaged, and rotating the worm can enable multiple connecting posts to rotate synchronously.

[0011] Furthermore, a sleeve with a smooth inner wall is fixedly installed in the sliding hole and the connecting hole. The sleeve is circumferentially provided with a plurality of strip grooves penetrating the sleeve with the sleeve axis as the center. The connecting column is slidably connected to the inner wall of the sleeve.

[0012] Furthermore, an empty groove with an L-shaped cross-section is provided on the support position, and a plurality of limit grooves corresponding to the connecting columns are arranged side by side in the empty groove. The limit groove is L-shaped, and the outer wall of the prefabricated connecting plate is installed with connecting steel bars that cooperate with the limit groove. The prefabricated connecting plate is provided with a leakage hole connected to the sliding hole, and concrete can leak into the empty groove along the leakage hole.

[0013] A construction method for an assembled rotating bridge comprises the following steps:

[0014] S1: rotating the bridge bodies so that adjacent bridge bodies are aligned to form a closing gap, and then installing the prefabricated connecting plates in the closing gap so that the prefabricated connecting plates close the closing gap, with the connecting holes corresponding to the sliding holes and the connecting steel bars located in the limiting grooves;

[0015] S2: Install the driving mechanism and push the connecting column through the driving mechanism so that the connecting column slides into the connecting hole and resists. At this time, there is a gap between the worm wheel and the inner wall of the casting trough, and the worm wheel and the worm are engaged;

[0016] S3: Take out the driving mechanism and pour concrete into the casting trough. When pouring concrete, rotate the worm to make multiple worm wheels and connecting columns rotate synchronously. The connecting column rotates to bring concrete into the sliding hole, and falls from the leak hole into the empty trough and covers the connecting steel bars and the limit groove. After the empty trough is filled, the connecting column continues to rotate to fill the sliding hole and the connecting hole with concrete. Among them, when the concrete in the casting trough reaches the preset height, it means that the empty trough, sliding hole and connecting hole are filled. At this time, take out the worm for reuse, and continue to pour concrete to fill the casting trough.

[0017] The beneficial effects of the present invention are:

[0018] The present invention provides a spiral connecting column to ensure that the concrete can fill the sliding hole and the connecting hole when pouring concrete, avoiding the gap inside the sliding hole and the connecting hole caused by direct pouring, which affects the stability of the structure; the steel bars are arranged inside the connecting column to avoid corrosion or bending caused by the exposed steel bars during construction, and the need for manual straightening affecting the construction period.

[0019] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the present invention provides the following drawings for illustration:

[0021] Figure 1 A cross-sectional view of the overall structure of an embodiment of the present invention;

[0022] Figure 2 Schematic diagram of the overall structure of an embodiment of the present invention;

[0023] Figure 3 This is a structural diagram of a bridge body according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic structural diagram of a prefabricated connecting plate according to an embodiment of the present invention;

[0025] Figure 5 Schematic diagram of the cooperation between the connecting column and the sleeve according to an embodiment of the present invention.

[0026] The markings in the accompanying drawings are as follows: bridge body 1, support position 101, closing gap 102, connecting hole 103, empty slot 104, limiting slot 105, connecting steel bar 106, prefabricated connecting plate 2, casting slot 201, sliding hole 202, leakage hole 203, connecting column 3, steel bar 301, worm gear 302, worm 303, sleeve 4, strip slot 401. DETAILED DESCRIPTION

[0027] like Figures 1 to 5 As shown, the present invention provides an assembled rotating bridge, comprising: a bridge body 1, a prefabricated connecting plate 2 installed between two adjacent bridge bodies 1, support positions 101 connected to the bridge body 1 as a whole are provided at both ends of the bridge body 1, when the two bridge bodies 1 are closed, a T-shaped closing gap 102 is formed by the support positions 101, the prefabricated connecting plate 2 cooperates with the closing gap 102, a casting groove 201 is provided on the prefabricated connecting plate 2, a plurality of sliding holes 202 connected to the casting groove 201 are provided on the side of the prefabricated connecting plate 2 close to the bridge body 1, a spirally arranged connecting column 3 is slidably installed in the sliding hole 202, a steel bar 301 is installed in the connecting column 3, a plurality of steel bars 301 are arranged in a circular ring inside the connecting column 3, and a connecting hole 103 cooperating with the connecting column 3 is provided on the bridge body 1;

[0028] In this program, if Figure 2When closing adjacent bridge bodies 1, first close and align the adjacent bridge bodies 1 to form a closing gap 102, and then install the prefabricated connecting plate 2 in the closing gap 102. At this time, the connecting hole 103 is corresponding to the sliding hole 202. In actual application, a pier may be provided below the closing gap 102 or not. When a pier is provided, the support position 101 is rotated to above the pier, and the support position 101 is supported by the pier. When no pier is provided, the prefabricated connecting plate 2 is supported only by the support position 101. Figure 1 In the process of installing the prefabricated connecting plate 2 in the closing gap 102, the first end of the connecting column 3 is located in the sliding hole 202, and the second end of the connecting column 3 extends into the casting groove 201. After the prefabricated connecting plate 2 is installed in the closing gap 102, the connecting column 3 is slid so that the first end of the connecting column 3 slides into the connecting hole 103, and then concrete is poured in the casting groove 201. During the pouring process, the connecting column 3 is rotated so that the spiral connecting column 3 can spirally bring the concrete in the casting groove 201 from the sliding hole 202 to the connecting hole 103. When the concrete solidifies, the concrete in the sliding hole 202 and the connecting hole 103 form a spiral groove that cooperates with the connecting column 3.

[0029] This solution installs the prefabricated connecting plate 2 in the closing gap 102, and can verify the alignment accuracy between adjacent bridge bodies 1 through the prefabricated connecting plate 2, making the alignment more accurate and speeding up the construction period; by setting up the support position 101, the prefabricated connecting plate 2 can be supported, and there is no need to set up a formwork to pour concrete when there is no bridge pier under the closing gap 102, which further speeds up the construction period and improves the construction convenience; by setting up the spiral connecting column 3, when pouring concrete, it is ensured that the concrete can fill the sliding hole 202 and the connecting hole 103, avoiding the gap inside the sliding hole 202 and the connecting hole 103 caused by direct pouring, which affects the structural stability; the steel bar 301 is set inside the connecting column 3 to avoid corrosion or bending caused by the exposed steel bar during construction, and the need for manual straightening affecting the construction period.

[0030] In one embodiment of the present invention, a worm gear 302 is fixedly installed at the end of the connecting column 3 away from the connecting hole 103 , and a worm 303 meshing with the worm gear 302 is detachably installed in the casting trough 201 , and the worm 303 is located above the connecting column 3 .

[0031] In this program, if Figure 2After the prefabricated connecting plate 2 is installed in the closing gap 102, a driving mechanism for outputting linear motion is installed in the casting trough 201, the driving mechanism includes but is not limited to a hydraulic cylinder, the output end of the driving mechanism is in contact with the end of the connecting column 3, and the connecting column 3 is made to slide along the sliding hole 202 by the driving mechanism, so that the connecting column 3 slides into the connecting hole 103. When the connecting column 3 is tightly pressed against the connecting hole 103, a gap is formed between the end of the connecting column 3 away from the connecting hole 103 and the inner wall of the casting trough 201, and at this time the worm gear 302 Engage with the worm 303, then remove the drive mechanism, and pour concrete into the grid casting trough 201. During the pouring process, by rotating the worm 303, the worm wheel 302 rotates, thereby rotating the connecting column 3, so that the spirally arranged connecting column 3 brings concrete into the sliding hole 202 and the connecting hole 103. When the sliding hole 202 and the connecting hole 103 are filled, the concrete covers the sliding hole 202. At this time, the worm 303 is removed for reuse, and then the concrete pouring is continued to fill the casting trough 201.

[0032] This solution provides a worm 303 so that the rotation of the worm 303 can drive all the connecting columns 3 to rotate, thereby improving the casting efficiency and saving construction time. The worm 303 can be detachably installed in the casting trough 201 so that the worm 303 can be reused to save material costs.

[0033] In one embodiment of the present invention, a sleeve 4 with a smooth inner wall is fixedly installed in the sliding hole 202 and the connecting hole 103. The sleeve 4 is circumferentially provided with a plurality of strip grooves 401 passing through the sleeve 4 centered on the axial direction of the sleeve 4, and the connecting column 3 is slidingly connected to the inner wall of the sleeve 4.

[0034] In this program, if Figure 5 Since the prefabricated connecting plate 2 is made of concrete, the inner walls of the sliding hole 202 and the connecting hole 103 are rough. By providing a sleeve 4 with a smooth inner wall, the connecting column 3 can slide more smoothly. By providing a strip groove 401, when pouring concrete, the concrete can fill the sliding hole 202 and the connecting hole 103 from the strip groove 401, so that the concrete can extend out of the strip groove 401 and condense with the inner walls of the sliding hole 202 and the inner walls of the connecting hole 103, thereby enhancing the stability of the connecting column 3.

[0035] In one embodiment of the present invention, a hollow groove 104 with an L-shaped cross-section is provided on the support position 101, and a plurality of limiting grooves 105 corresponding to the connecting column 3 are arranged side by side in the hollow groove 104, and the limiting groove 105 is L-shaped. The outer wall of the prefabricated connecting plate 2 is installed with connecting steel bars 106 that cooperate with the limiting groove 105, and the prefabricated connecting plate 2 is provided with a leakage hole 203 connected to the sliding hole 202, and concrete can leak into the hollow groove 104 along the leakage hole 203.

[0036] In this program, if Figure 3 and 4When installing the prefabricated connecting plate 2, the connecting steel bars 106 are matched one by one with the limiting grooves 105, so that the connecting steel bars 106 are located in the limiting grooves 105, so as to achieve precise alignment of the prefabricated connecting plate 2 and limit the displacement of the prefabricated connecting plate 2, thereby reducing the lateral pressure on the connecting column 3; when pouring concrete, the concrete can flow from the sliding hole 202 to the leakage hole 203, and the concrete leaked from the leakage hole 203 is poured in the empty groove 104, and covers the limiting grooves 105 and the connecting steel bars 106, thereby enhancing the stability of the connection between the prefabricated connecting plate 2 and the bridge body 1.

[0037] A construction method for an assembled rotating bridge comprises the following steps:

[0038] S1: Rotate the bridge body 1 so that adjacent bridge bodies 1 are aligned to form a closing gap 102, and then install the prefabricated connecting plate 2 in the closing gap 2 so that the prefabricated connecting plate 2 closes the closing gap 2, with the connecting hole 103 corresponding to the sliding hole 202, and the connecting steel bar 106 located in the limiting groove 105;

[0039] S2: Install the driving mechanism and push the connecting column 3 through the driving mechanism so that the connecting column 3 slides into the connecting hole 103 and is pressed against it. At this time, a gap is provided between the worm gear 302 and the inner wall of the casting trough 201, and the worm gear 302 is engaged with the worm 303;

[0040] S3: Take out the driving mechanism and pour concrete into the casting trough 201. When pouring concrete, rotate the worm 303 to make multiple worm wheels 302 and the connecting column 3 rotate synchronously. The connecting column 3 rotates to bring the concrete into the sliding hole 202, and falls from the leakage hole 203 into the empty slot 104 and covers the connecting steel bar 106 and the limit slot 105. After the empty slot 104 is filled, the connecting column 3 continues to rotate to fill the sliding hole 202 and the connecting hole 103 with concrete. Among them, when the concrete in the casting trough 201 reaches a preset height, it means that the empty slot 104, the sliding hole 202, and the connecting hole 103 are filled. At this time, take out the worm 303 for reuse, and continue to pour concrete to fill the casting trough 201.

[0041] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An assembled rotating bridge, comprising: The bridge body is characterized in that: a prefabricated connecting plate is installed between two adjacent bridge bodies, and support positions connected to the bridge body as a whole are provided at both ends of the bridge body. When the two adjacent bridge bodies are closed, a T-shaped closing gap is formed by the support positions, and the prefabricated connecting plate cooperates with the closing gap. The prefabricated connecting plate is provided with a casting groove, and the prefabricated connecting plate is provided with a plurality of sliding holes connected to the casting groove on the side close to the bridge body. A spirally arranged connecting column is slidably installed in the sliding hole, and steel bars are installed in the connecting column. A plurality of steel bars are arranged in a circular ring inside the connecting column. The bridge body is provided with a connecting hole that cooperates with the connecting column; When closing adjacent bridge bodies, first align the adjacent bridge bodies to form a T-shaped closing gap, then install the prefabricated connecting plate in the closing gap, and then move the connecting column located in the sliding hole to slide into the connecting hole and abut against it. At this time, there is a gap between the connecting column and the inner wall of the casting trough away from the end of the connecting hole, and then pour concrete into the casting trough and rotate the connecting column to fill the sliding hole and the connecting hole with concrete; A sleeve with a smooth inner wall is fixedly installed in the sliding hole and the connecting hole. The sleeve is provided with a plurality of strip grooves penetrating the sleeve in a circumferential direction centered on the sleeve axis. The connecting column is slidably connected to the inner wall of the sleeve. The support position is provided with an empty groove with an L-shaped cross-section, and a plurality of limit grooves corresponding to the connecting columns are arranged side by side in the empty groove. The limit groove is L-shaped, and the outer wall of the prefabricated connecting plate is installed with connecting steel bars that cooperate with the limit groove. The prefabricated connecting plate is provided with a leakage hole connected to the sliding hole, and concrete can leak into the empty groove along the leakage hole.

2. The assembled rotating bridge according to claim 1, characterized in that: A worm wheel is fixedly mounted on the end of the connecting column away from the connecting hole, and a worm that can mesh with the worm wheel is detachably mounted in the casting trough, and the worm is located above the connecting column; When the connecting post slides to abut against the inner wall of the connecting hole, the worm wheel and the worm are engaged, and rotating the worm can enable multiple connecting posts to rotate synchronously.

3. The construction method of the assembled rotating bridge according to any one of claims 1 to 2, characterized in that: The following steps are involved: S1: rotating the bridge bodies so that adjacent bridge bodies are aligned to form a closing gap, and then installing the prefabricated connecting plates in the closing gap so that the prefabricated connecting plates close the closing gap, with the connecting holes corresponding to the sliding holes and the connecting steel bars located in the limiting grooves; S2: Install the driving mechanism and push the connecting column through the driving mechanism so that the connecting column slides into the connecting hole and resists. At this time, there is a gap between the worm wheel and the inner wall of the casting trough, and the worm wheel and the worm are engaged; S3: Take out the driving mechanism and pour concrete into the casting trough. When pouring concrete, rotate the worm to make multiple worm wheels and connecting columns rotate synchronously. The connecting column rotates to bring concrete into the sliding hole, and falls from the leak hole into the empty trough and covers the connecting steel bars and the limit groove. After the empty trough is filled, the connecting column continues to rotate to fill the sliding hole and the connecting hole with concrete. Among them, when the concrete in the casting trough reaches the preset height, it means that the empty trough, sliding hole and connecting hole are filled. At this time, take out the worm for reuse, and continue to pour concrete to fill the casting trough.

Images