A bridge pier and safety ladder connection device and construction method

Abstract

The present invention discloses a device and construction method for connecting a bridge pier to a safety ladder. The device includes a pre-embedded climbing cone, a wall-mounted connecting seat, a locking bolt, and a connecting piece. The wall-mounted connecting seat includes a U-shaped connecting plate and a vibration-damping support. The locking bolt passes through the U-shaped connecting plate and extends into the pre-embedded climbing cone. The connecting piece includes a vertical adjustment component disposed at the bottom of the vibration-damping support, two horizontal adjustment components disposed on the vertical adjustment component, and a connecting rod disposed on the horizontal adjustment component. The method includes the following steps: 1. installing the pre-embedded climbing cone in the bridge pier; 2. installing the bridge pier formwork; 3. casting the bridge pier and removing the formwork; 4. installing the bridge pier and safety ladder connecting piece; and 5. connecting the bridge pier to the safety ladder. The present invention connects the connecting rod to the safety ladder through the vertical and horizontal adjustment components, thereby achieving the connection between the bridge pier and the safety ladder. Construction workers can achieve this connection by simply standing on the safety ladder, eliminating the need for high-altitude work on the bridge pier. This reduces labor and auxiliary machinery costs and is easy to operate.

Description

Technical Field

[0001] The present invention belongs to the technical field of connecting a safety ladder with a bridge pier, and in particular relates to a bridge pier and safety ladder connecting device and a construction method. Background Art

[0002] During the construction of bridge piers, a safety ladder is required to facilitate personnel to go up and down. In order to increase the stability of the safety ladder during use, it is necessary to connect the safety ladder to the bridge pier. For example, patent CN202222130743.3 describes a safety ladder connection device for a non-damaged pier structure. Connector 1 and Connector 2 are two semicircular structures. Currently, the diameter of most bridge piers is greater than 1m, so one person cannot install them. At least two people are required, which takes up a lot of manpower. Secondly, if Connector 1 and Connector 2 are loosened with bolts first, and then installed from the top of the pier with the assistance of a crane, the crane needs to cooperate and manpower is required again. Or if bolts are not used in advance, because Connector 1 and Connector 2 are installed at a height, a crane is needed to assist in hanging Connector 1 and Connector 2. In this way, they need to be docked and bolted in the air, which is a more complicated operation. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to address the deficiencies in the above-mentioned prior art and provide a device for connecting a bridge pier and a safety ladder. The device has a reasonable design and realizes the connection between the connecting rod and the safety ladder through vertical adjustment components and horizontal adjustment components, thereby realizing the connection between the bridge pier and the safety ladder. Construction workers only need to stand on the safety ladder to achieve this, and there is no need to work at high altitude on the bridge pier, which reduces labor and auxiliary machinery costs and is easy to operate.

[0004] To solve the above technical problems, the present invention adopts a technical solution: a bridge pier and safety ladder connection device, characterized by comprising: a pre-embedded climbing cone provided in the bridge pier, a wall-attached connection seat provided on the bridge pier, a locking bolt passing through the pre-embedded climbing cone and the wall-attached connection seat, and a connecting piece provided on the wall-attached connection seat, wherein the wall-attached connection seat includes a U-shaped connection plate provided on the outer wall of the pier and a vibration-damping support provided at the bottom of the U-shaped connection plate, and the locking bolt passes through the U-shaped connection plate and extends into the pre-embedded climbing cone;

[0005] The connecting member includes a vertical adjustment component arranged at the bottom of the vibration-damping support, two horizontal adjustment components arranged on the vertical adjustment component, and a connecting rod arranged on the horizontal adjustment component.

[0006] The above-mentioned bridge pier and safety ladder connection device is characterized in that the vertical adjustment component includes a horizontal plate, a vertical adjustment plate and a 90-degree hinge connecting the horizontal plate and the vertical adjustment plate, and the vertical adjustment plate can be adjusted vertically or horizontally through the 90-degree hinge.

[0007] The above-mentioned device for connecting a bridge pier and a safety ladder is characterized in that: the horizontal adjustment component includes a ball joint seat arranged on the vertical adjustment plate, and a ball head arranged in the ball joint seat, one end of the connecting rod is threadedly connected to the protruding end of the ball head, and one end of the connecting rod is provided with a connecting hoop that cooperates with the safety ladder.

[0008] The above-mentioned bridge pier and safety ladder connection device is characterized in that the embedded climbing cone includes an L-shaped connecting plate, an embedded screw rod passing through the L-shaped connecting plate, and a climbing cone installed on the embedded screw rod.

[0009] The above-mentioned device for connecting a bridge pier and a safety ladder is characterized in that: the L-shaped connecting plate includes a first connecting plate and a second connecting plate arranged perpendicular to the first connecting plate, the first connecting plate is welded to the vertical reinforcement of the bridge pier steel cage, and one end of the embedded screw is passed through the second connecting plate.

[0010] At the same time, the present invention also discloses a construction method for connecting a bridge pier and a safety ladder, which has simple steps, reasonable design, and convenient implementation. The method is characterized in that it includes the following steps:

[0011] Step 1: Installation of embedded climbing cones in bridge piers:

[0012] Step 101: Welding L-shaped connecting plates at designed locations of vertical reinforcement bars of the pier reinforcement cage; wherein the L-shaped connecting plates include a first connecting plate and a second connecting plate arranged perpendicular to the first connecting plate, wherein the first connecting plate is welded to the vertical reinforcement bars of the pier reinforcement cage;

[0013] Step 102: threading a pre-embedded screw into the second connecting plate; wherein a locking nut is provided at one end of the pre-embedded screw extending out of the second connecting plate;

[0014] Step 103: Thread a climbing cone onto the other end of the embedded screw; wherein the small diameter end of the climbing cone is arranged close to the embedded screw;

[0015] Step 2: Installation of pier formwork:

[0016] Install the pier formwork, with the side of the pier formwork fitting over the large diameter end of the climbing cone;

[0017] Step 3: Pier casting and formwork removal:

[0018] Step 301: Apply butter to the outer circumference of the climbing cone and wrap it with polyethylene film;

[0019] Step 302: pouring concrete into the pier formwork to form a pier pouring section;

[0020] Step 303: Remove the pier formwork and install a plug in the large diameter end of the climbing cone;

[0021] Step 4: Installation of the connectors between the bridge pier and the safety ladder:

[0022] Step 401: Assemble the vertical adjustment component and the horizontal adjustment component, and install a connecting rod on the horizontal adjustment component to obtain a connecting member;

[0023] Step 402: Remove the plug installed in the large-diameter end of the climbing cone, install a U-shaped connecting plate on the outer wall of the pier casting section, and install fastening bolts in the U-shaped connecting plate and the large-diameter end of the climbing cone; a vibration-damping support is provided at the bottom of the U-shaped connecting plate.

[0024] Step 402: Install a connector at the bottom of the vibration-damping support;

[0025] Step 5: Connection between the bridge pier and the safety ladder:

[0026] Step 501: The construction worker enters the safety ladder and reaches the designed connection position, then holds the extended traction hook and hooks it onto the connecting hoop;

[0027] Step 502: The construction personnel pull the vertical adjustment plate through the traction hook, the connecting hoop, and the connecting rod until the vertical adjustment plate is arranged vertically.

[0028] Step 503: The construction worker operates the connecting rod to rotate horizontally around the ball joint seat through the ball head until the adjustment of the connecting rod meets the construction requirements, and connects it to the safety ladder through the connecting hoop.

[0029] The above-mentioned construction method of a bridge pier and safety ladder connection device is characterized in that: a groove is provided in the U-shaped connecting plate, a limiting groove is provided on the groove wall, an L-shaped limiting plate is provided in the limiting groove, and the L-shaped limiting plate includes a vertical limiting plate and a horizontal limiting plate arranged perpendicular to the vertical limiting plate, the vertical limiting plate is tightly attached to the outer side surface of the fastening bolt, and the horizontal limiting plate is attached to the top surface of the U-shaped connecting plate.

[0030] Compared with the prior art, the present invention has the following advantages:

[0031] 1. The present invention has a simple structure, reasonable design, easy installation and layout, and low investment cost.

[0032] 2. The wall-mounted connector of the present invention includes a U-shaped connecting plate and a vibration-damping support to facilitate the installation of the connector. In addition, the vibration-damping support is provided to reduce the impact of walking shaking on the bridge pier during the use of the safety ladder connection.

[0033] 3. The present invention is provided with a vertical adjustment component so that when the safety ladder needs to be connected, the vertical adjustment plate is adjusted to be arranged vertically so that the connecting rod is arranged horizontally; when the connection is not required, the vertical adjustment plate is adjusted to be arranged horizontally so that the connecting rod is arranged vertically, thereby facilitating the storage of the connecting rod.

[0034] 4. The present invention is provided with two horizontal adjustment components so that the connecting rods can rotate horizontally around the horizontal adjustment components, thereby adjusting the angle between the two connecting rods to a certain extent, thereby improving the stability of the connection between the two connecting rods and the safety ladder.

[0035] 5. The construction method for connecting the bridge pier and the safety ladder of the present invention has simple steps, is easy to implement and simple to operate, and ensures that the bridge pier and the safety ladder are quickly connected.

[0036] 6. The construction method for connecting the bridge pier and the safety ladder of the present invention is easy to operate and has good use effect. First, the pre-embedded climbing cone is installed in the bridge pier, and then the bridge pier formwork is installed and the bridge pier is poured and the formwork is removed to form a bridge pier pouring section; then the bridge pier and the safety ladder connector is installed, and finally the bridge pier and the safety ladder are connected. It can be completed by only one construction worker, reducing labor and auxiliary machinery costs and is easy to operate.

[0037] In summary, the present invention is reasonably designed. The connecting rod is connected to the safety ladder through vertical adjustment components and horizontal adjustment components, thereby realizing the connection between the bridge pier and the safety ladder. Construction workers only need to stand on the safety ladder to achieve this, reducing labor and auxiliary machinery costs and facilitating operation.

[0038] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a structural diagram of the present invention without the connecting parts.

[0040] Figure 2 for Figure 1 Schematic diagram of the structure without the locking bolt and L-shaped limit plate.

[0041] Figure 3 It is a structural schematic diagram of the L-shaped limiting plate of the present invention.

[0042] Figure 4 It is a structural schematic diagram of the wall-mounted connecting seat and the connecting piece of the present invention.

[0043] Figure 5 for Figure 4 The top view without the wall connector.

[0044] Figure 6 It is a flowchart of the method of the present invention.

[0045] Description of the accompanying drawings:

[0046] 1—L-shaped connecting plate; 1-1—first connecting plate; 1-2—second connecting plate;

[0047] 2—Embedded screw; 3—Climbing cone; 5—Locking bolt;

[0048] 6—vertical reinforcement of the pier reinforcement cage; 7—L-shaped limit plate; 7-1—vertical limit plate;

[0049] 7-2—Horizontal limit plate; 8—Groove; 9—Limiting slot;

[0050] 10—U-shaped connecting plate; 11—vibration-damping support; 12—horizontal plate;

[0051] 13—Vertical adjustment plate; 14—Ball joint seat; 15—Ball head;

[0052] 17—Connecting rod; 18—Connecting hoop; 19—90-degree hinge. DETAILED DESCRIPTION

[0053] like Figures 1 to 5 The illustrated device for connecting a bridge pier to a safety ladder comprises a pre-embedded climbing cone disposed in the pier, a wall-attached connection seat disposed on the pier, a locking bolt 5 passing through the pre-embedded climbing cone and the wall-attached connection seat, and a connector disposed on the wall-attached connection seat. The wall-attached connection seat comprises a U-shaped connection plate 10 disposed on the outer wall of the pier and a vibration-damping support 11 disposed at the bottom of the U-shaped connection plate 10. The locking bolt 5 passes through the U-shaped connection plate 10 and extends into the pre-embedded climbing cone.

[0054] The connecting member includes a vertical adjustment component provided at the bottom of the vibration-damping support 11 , two horizontal adjustment components provided on the vertical adjustment component, and a connecting rod 17 provided on the horizontal adjustment component.

[0055] In this embodiment, the vertical adjustment component includes a horizontal plate 12 , a vertical adjustment plate 13 and a 90-degree hinge 19 connecting the horizontal plate 12 and the vertical adjustment plate 13 . The vertical adjustment plate 13 can be adjusted vertically or horizontally through the 90-degree hinge 19 .

[0056] In this embodiment, the horizontal adjustment component includes a ball joint seat 14 arranged on the vertical adjustment plate 13, and a ball head 15 arranged in the ball joint seat 14. One end of the connecting rod 17 is threadedly connected to the protruding end of the ball head 15, and one end of the connecting rod 17 is provided with a connecting hoop 18 that cooperates with the safety ladder.

[0057] In this embodiment, the embedded climbing cone includes an L-shaped connecting plate 1 , an embedded screw 2 passing through the L-shaped connecting plate 1 , and a climbing cone 3 installed on the embedded screw 2 .

[0058] In this embodiment, the L-shaped connecting plate 1 includes a first connecting plate 1-1 and a second connecting plate 1-2 arranged perpendicular to the first connecting plate 1-1. The first connecting plate 1-1 is welded to the vertical reinforcement 6 of the pier steel cage, and one end of the embedded screw 2 is passed through the second connecting plate 1-2.

[0059] In this embodiment, the U-shaped connecting plate 10 is provided to facilitate the fastening bolts 5 to pass through and be accommodated in the grooves 8 of the U-shaped connecting plate 10 , and to facilitate the installation of the vibration-damping support 11 on the bottom surface of the U-shaped connecting plate 10 .

[0060] In this embodiment, there are two connecting rods 17 so that the connecting rods 17 can rotate horizontally around the ball joint seat 14 through the ball head 15, thereby adjusting the angle between the two connecting rods 17 to form a certain angle, so that the two connecting rods 17 and the safety ladder are connected to form a triangle, thereby improving stability.

[0061] In this embodiment, a 90-degree hinge 19 is provided to drive the vertical adjustment plate 13 to rotate 90° with the horizontal plate 12 under the force of the construction personnel, and to drive the vertical adjustment plate 13 to rotate in the opposite direction and be arranged parallel to the horizontal plate 12 under the force unloading of the construction personnel.

[0062] In this embodiment, the 90-degree hinge 19 can be a 90-degree heavy-duty hinge, which not only plays a connecting role but also has a strong load-bearing capacity.

[0063] In this embodiment, in actual use, multiple connection devices are set along the height direction of the bridge pier and the safety ladder to adapt to the safety ladder.

[0064] In this embodiment, an upper connecting steel plate is provided in the vibration-damping support 11 to be connected to the bottom of the U-shaped connecting plate 10, and a lower connecting steel plate is connected to the horizontal plate 12. The horizontal displacement of the vibration-damping support 11 is controlled within the range of 2 mm, which does not affect the stability of the safe ladder.

[0065] like Figure 6 A construction method for connecting a bridge pier with a safety ladder includes the following steps:

[0066] Step 1: Installation of embedded climbing cones in bridge piers:

[0067] Step 101: Weld an L-shaped connecting plate 1 at the designed position of the vertical reinforcement cage 6 of the pier. The L-shaped connecting plate 1 includes a first connecting plate 1-1 and a second connecting plate 1-2 arranged perpendicular to the first connecting plate 1-1. The first connecting plate 1-1 is welded to the vertical reinforcement cage 6 of the pier.

[0068] Step 102: threading the embedded screw 2 into the second connecting plate 1-2; wherein, a locking nut is provided at one end of the embedded screw 2 extending out of the second connecting plate 1-2;

[0069] Step 103: Thread the climbing cone 3 onto the other end of the embedded screw 2; wherein the small diameter end of the climbing cone 3 is arranged close to the embedded screw 2;

[0070] Step 2: Installation of pier formwork:

[0071] Install the pier formwork, with the side of the pier formwork fitting over the large diameter end of the climbing cone 3;

[0072] Step 3: Pier casting and formwork removal:

[0073] Step 301: Apply butter to the outer circumference of the climbing cone 3 and wrap it with polyethylene film;

[0074] Step 302: pouring concrete into the pier formwork to form a pier pouring section;

[0075] Step 303: remove the pier formwork and install a plug in the large diameter end of the climbing cone 3;

[0076] Step 4: Installation of the connectors between the bridge pier and the safety ladder:

[0077] Step 401: Assemble the vertical adjustment component and the horizontal adjustment component, and install the connecting rod 17 on the horizontal adjustment component to obtain a connecting member;

[0078] Step 402: Remove the plug installed in the large-diameter end of the climbing cone 3, install a U-shaped connecting plate 10 on the outer wall of the pier casting section, and install fastening bolts 5 in the U-shaped connecting plate 10 and the large-diameter end of the climbing cone 3; wherein, a vibration-damping support 11 is provided at the bottom of the U-shaped connecting plate 10;

[0079] Step 402: Install a connector at the bottom of the vibration-damping support 11;

[0080] Step 5: Connection between the bridge pier and the safety ladder:

[0081] Step 501: The construction worker enters the safety ladder and reaches the designed connection position, then holds the extended traction hook and hooks it onto the connecting hoop 18;

[0082] Step 502: The construction worker pulls the vertical adjustment plate 13 through the traction hook, the connecting hoop 18, and the connecting rod 17 until the vertical adjustment plate 13 is arranged vertically.

[0083] Step 503 : The construction worker operates the connecting rod 17 to rotate horizontally around the ball joint seat 14 through the ball head 15 until the adjustment of the connecting rod 17 meets the construction requirements, and connects the connecting rod 17 to the safety ladder through the connecting hoop 18 .

[0084] In this embodiment, a groove 8 is provided in the U-shaped connecting plate 10, and a limiting groove 9 is provided on the groove wall of the groove 8. An L-shaped limiting plate 7 is provided in the limiting groove 9. The L-shaped limiting plate 7 includes a vertical limiting plate 7-1 and a horizontal limiting plate 7-1 arranged perpendicular to the vertical limiting plate 7-1. The vertical limiting plate 7-1 is tightly attached to the outer side surface of the fastening bolt 5, and the horizontal limiting plate 7-1 is attached to the top surface of the U-shaped connecting plate 10.

[0085] In this embodiment, during actual use, an L-shaped limiting plate 7 is provided to limit the fastening bolt 5 and prevent the fastening bolt 5 from loosening; the horizontal limiting plate 7-1 fits against the top surface of the U-shaped connecting plate 10 to limit the L-shaped limiting plate 7 and prevent the L-shaped limiting plate 7 from sliding down.

[0086] In this embodiment, when the safety ladder is dismantled during actual use, the polyethylene film can also be removed, and the climbing cone 3 can be removed by rotating it counterclockwise, so that the climbing cone 3, the wall connecting seat and the connecting piece can be recycled.

[0087] In summary, the present invention is reasonably designed. The connecting rod is connected to the safety ladder through vertical adjustment components and horizontal adjustment components, thereby realizing the connection between the bridge pier and the safety ladder. Construction workers only need to stand on the safety ladder to achieve this, reducing labor and auxiliary machinery costs and facilitating operation.

[0088] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A device for connecting a bridge pier and a safety ladder, characterized by: It comprises a pre-embedded climbing cone arranged in a bridge pier, a wall-attached connection seat arranged on the bridge pier, a locking bolt (5) passing through the pre-embedded climbing cone and the wall-attached connection seat, and a connecting piece arranged on the wall-attached connection seat, wherein the wall-attached connection seat comprises a U-shaped connection plate (10) arranged on the outer wall of the bridge pier and a vibration-damping support (11) arranged at the bottom of the U-shaped connection plate (10), and the locking bolt (5) passes through the U-shaped connection plate (10) and extends into the pre-embedded climbing cone; The connecting member comprises a vertical adjustment component provided at the bottom of the vibration-damping support (11), two horizontal adjustment components provided on the vertical adjustment component, and a connecting rod (17) provided on the horizontal adjustment component; The vertical adjustment component comprises a horizontal plate (12), a vertical adjustment plate (13), and a 90-degree hinge (19) connecting the horizontal plate (12) and the vertical adjustment plate (13), wherein the vertical adjustment plate (13) can be adjusted vertically or horizontally via the 90-degree hinge (19); The horizontal adjustment component comprises a ball joint seat (14) arranged on the vertical adjustment plate (13), a ball head (15) arranged in the ball joint seat (14), one end of the connecting rod (17) is threadedly connected to the protruding end of the ball head (15), and the other end of the connecting rod (17) is provided with a connecting hoop (18) that cooperates with the safety ladder; The embedded climbing cone comprises an L-shaped connecting plate (1), an embedded screw rod (2) passing through the L-shaped connecting plate (1), and a climbing cone (3) mounted on the embedded screw rod (2); The L-shaped connecting plate (1) comprises a first connecting plate (1-1) and a second connecting plate (1-2) arranged perpendicularly to the first connecting plate (1-1); the first connecting plate (1-1) is welded to the vertical reinforcement (6) of the pier reinforcement cage; and one end of the embedded screw rod (2) is passed through the second connecting plate (1-2).

2. A construction method for the bridge pier and safety ladder connection device according to claim 1, characterized in that: The method comprises the following steps: Step 1: Installation of embedded climbing cones in bridge piers: Step 101: Welding an L-shaped connecting plate (1) at a designed position of a pier reinforcement cage vertical bar (6); wherein the L-shaped connecting plate (1) comprises a first connecting plate (1-1) and a second connecting plate (1-2) arranged perpendicular to the first connecting plate (1-1); the first connecting plate (1-1) is welded to the pier reinforcement cage vertical bar (6); Step 102: threading the embedded screw rod (2) in the second connecting plate (1-2); wherein a locking nut is provided at one end of the embedded screw rod (2) extending out of the second connecting plate (1-2); Step 103, threading a climbing cone (3) on the other end of the embedded screw (2); wherein the small diameter end of the climbing cone (3) is arranged close to the embedded screw (2); Step 2: Installation of pier formwork: Installing the pier template, with the side of the pier template fitting the large diameter end of the climbing cone (3); Step 3: Pier casting and formwork removal: Step 301: Apply butter to the outer periphery of the climbing cone (3) and wrap it with polyethylene film; Step 302: pouring concrete into the pier formwork to form a pier pouring section; Step 303, remove the pier formwork and install a plug in the large diameter end of the climbing cone (3); Step 4: Installation of the connectors between the bridge pier and the safety ladder: Step 401: Assemble the vertical adjustment component and the horizontal adjustment component, and install a connecting rod (17) on the horizontal adjustment component to obtain a connecting member; Step 402: remove the plug installed in the large diameter end of the climbing cone (3), install a U-shaped connecting plate (10) on the outer wall of the pier casting section, and install locking bolts (5) in the U-shaped connecting plate (10) and the large diameter end of the climbing cone (3); wherein, a vibration-damping support (11) is provided at the bottom of the U-shaped connecting plate (10); Step 403: Install a connector at the bottom of the vibration-damping support (11); Step 5: Connection between the bridge pier and the safety ladder: Step 501: The construction worker enters the safety ladder and reaches the designed connection position, then holds the extended traction hook and hooks it onto the connecting hoop (18); Step 502: The construction personnel pull the vertical adjustment plate (13) through the traction hook, the connecting hoop (18), and the connecting rod (17) until the vertical adjustment plate (13) is arranged vertically; Step 503: The construction personnel operate the connecting rod (17) to rotate horizontally around the ball joint seat (14) through the ball head (15) until the adjustment of the connecting rod (17) meets the construction requirements, and connect it to the safety ladder through the connecting hoop (18).

3. The construction method of the bridge pier and safety ladder connection device according to claim 2 is characterized in that: A groove (8) is provided in the U-shaped connecting plate (10), a limiting groove (9) is provided on the groove wall of the groove (8), an L-shaped limiting plate (7) is provided in the limiting groove (9), the L-shaped limiting plate (7) comprises a vertical limiting plate (7-1) and a horizontal limiting plate (7-2) arranged perpendicular to the vertical limiting plate (7-1), the vertical limiting plate (7-1) is in close contact with the outer side surface of the locking bolt (5), and the horizontal limiting plate (7-2) is in close contact with the top surface of the U-shaped connecting plate (10).

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