Lifting platform for road and bridge construction

Abstract

The utility model relates to the technical field of road and bridge construction equipment, in particular to a lifting platform for road and bridge construction, which comprises a base, a connecting frame and a support frame, the connecting frame is mounted on the upper surface of the base, the support frame is mounted inside the connecting frame, and an air cylinder is arranged on the inner wall of the connecting frame. The driving end of the air cylinder is rotationally connected with the inner wall of the supporting frame, an operation platform is arranged at the end, away from the base, of the supporting frame, auxiliary assemblies are arranged on the two sides of the operation platform, and each auxiliary assembly comprises a supporting unit. According to the lifting platform disclosed by the utility model, the auxiliary assembly is arranged, so that the lifting platform can protect the lower part of a construction area when a constructor carries out construction by virtue of the lifting platform, and then the problem that materials or tools slip out of hands in the construction process and threaten the constructor below the construction area is reduced; and the safety of constructors during construction operation by means of equipment is further improved.

Description

Technical Field

[0001] This utility model relates to the field of road and bridge construction equipment technology, and in particular to a lifting platform for road and bridge construction. Background Technology

[0002] Road and bridge construction lifting platforms are important pieces of equipment in road and bridge construction. They typically consist of a platform body, lifting mechanism, control system, safety devices, and other components. Road and bridge construction lifting platforms improve construction efficiency, reduce construction difficulty and risks, and provide strong support for road and bridge construction.

[0003] Existing technologies, such as the utility model patent with publication number CN221051520U, disclose an adjustable lifting platform for road and bridge construction. This patent uses a mobile scissor lift platform with support columns fixed at the four corners of the upper side of the lifting platform. Tubes are movably sleeved on the support columns and fixed to the support columns by a fixing structure. Two tubes on the same side are fixedly connected by a guardrail. A sunshade can be detachably installed on the top of one of the tubes. This solves the problem that most guardrails are fixed structures and cannot be adjusted according to the different heights of construction workers, resulting in the guardrails not being able to provide adequate protection for construction workers of different heights.

[0004] During bridge construction using lifting platforms, there is a problem: after the existing lifting platforms raise the construction workers to a designated height, the workers will be working at a high altitude. During the operation, due to the gap between the platform and the bridge structure, when the construction workers are working and materials or tools are released from their control, the materials or tools will accelerate as they fall. When the falling materials or tools come into contact with the ground, they will bounce, posing a threat to people in the surrounding environment. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where construction workers are at height, causing falling materials or tools to accelerate and bounce when they come into contact with the ground, posing a threat to personnel in the surrounding environment. Therefore, this invention proposes a lifting platform for road and bridge construction.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a lifting platform for road and bridge construction, comprising a base, a connecting frame, and a support frame. The connecting frame is installed on the upper surface of the base, and the support frame is installed inside the connecting frame. A cylinder is provided on the inner wall of the connecting frame, and the driving end of the cylinder is rotatably connected to the inner wall of the support frame. An operating platform is provided at the end of the support frame away from the base. Auxiliary components are provided on both sides of the operating platform. The auxiliary components include support units, and the support units include U-shaped frames. The side surfaces of the U-shaped frames are fixedly connected to... A crossbar has a connecting frame slidably connected to its surface. A fixing bolt is threaded onto the inner wall of the connecting frame. A rotating shaft is fixedly connected to the side surface of the connecting frame. A turntable is rotatably connected to the arc surface of the rotating shaft. A T-shaped frame is slidably connected to the inner wall of the connecting frame. A limit spring is fixedly connected to the surface of the T-shaped frame. The side of the limit spring away from the T-shaped frame is fixedly connected to the inner wall of the connecting frame. A connecting block is fixedly connected to the surface of the T-shaped frame. A pin is fixedly connected to the end of the connecting block near the turntable. A slot is opened on the arc surface of the turntable, and the pin is inserted into the inner wall of the slot.

[0007] The auxiliary component also includes a lifting unit, which includes a mounting rod. The mounting rod is fixedly connected to the arc surface of the turntable. The arc surface of the mounting rod has a threaded groove. A locking bolt is threadedly connected to the inner wall of the threaded groove on the mounting rod. A net is fixedly connected to the end of the locking bolt away from the mounting rod. A protective plate is fixedly connected to the lower surface of the U-shaped frame.

[0008] Preferably, a guide rod is fixedly connected to the side surface of the U-shaped frame, and the connecting frame is slidably connected to the surface of the guide rod. The position of the connecting frame can be constrained by the guide rod to ensure that the connecting frame moves stably along the axial direction of the crossbar, and at the same time, the crossbar can assist in guiding the movement direction of the connecting frame.

[0009] Preferably, there are two connecting frames, which are arranged symmetrically about the operating platform. The number of fixing bolts matches the number of connecting frames. The fixing bolts contact the arc surface of the crossbar. The fixing bolts can be tightened and pressed against the arc surface of the crossbar to lock the position of the connecting frame and ensure the stability of the connecting frame in the unfolded or closed state.

[0010] Preferably, the turntable contacts the inner wall of the connecting frame. Through the cooperation between the turntable and the rotating shaft, the rotation axis of the mounting rod can be constrained to ensure that the mounting rod rotates in the specified direction under the operation of the construction personnel.

[0011] Preferably, there are two slots arranged in a circular array about the turntable. The position of the turntable can be locked by the slots when the pin is inserted, so that the position of the turntable can be restricted to two predetermined positions.

[0012] Preferably, there are two mounting rods, which are symmetrically arranged about the operating platform. The mounting rods allow construction workers to install locking bolts to install the net, and also support the position of the net so that it can be deployed to protect the construction area.

[0013] Preferably, there are multiple locking bolts, which are arranged horizontally about the mounting rod. The locking bolts can fix the net to the mounting rod, so that the net and the mounting rod are linked and the net can be unfolded along with the mounting rod when the construction personnel unfold the mounting rod.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] In this utility model, by setting auxiliary components, the lifting platform can protect the area below the construction site when construction workers use it for construction. This reduces the risk of materials or tools slipping from the workers' hands and thus improves the safety of workers when using the equipment for construction. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural diagram of a lifting platform for road and bridge construction;

[0017] Figure 2 This utility model provides a bottom view structural diagram of a lifting platform for road and bridge construction;

[0018] Figure 3 This utility model provides a schematic diagram of the auxiliary component structure of a lifting platform for road and bridge construction;

[0019] Figure 4 This utility model proposes a lifting platform for road and bridge construction. Figure 3 Schematic diagram of the structure at point A in the middle;

[0020] Figure 5 This utility model provides a partial structural schematic diagram of a lifting platform for road and bridge construction;

[0021] Figure 6 This utility model presents a partial structural schematic diagram of a lifting platform for road and bridge construction.

[0022] Legend:

[0023] 1. Base; 2. Connecting frame; 3. Support frame; 4. Cylinder; 5. Operating platform; 6. Auxiliary components; 61. Support unit; 611. U-shaped frame; 612. Crossbar; 613. Guide rod; 614. Connecting frame; 615. Fixing bolt; 616. Rotating shaft; 617. Turntable; 618. T-shaped frame; 619. Limiting spring; 6110. Connecting block; 6111. Pin; 6112. Slot; 62. Lifting unit; 621. Mounting rod; 622. Locking bolt; 623. Net; 624. Protective plate. Detailed Implementation

[0024] Please see Figures 1-6 This utility model provides a technical solution: a lifting platform for road and bridge construction, including a base 1, a connecting frame 2 and a support frame 3. The connecting frame 2 is installed on the upper surface of the base 1, and the support frame 3 is installed inside the connecting frame 2. A cylinder 4 is provided on the inner wall of the connecting frame 2, and the driving end of the cylinder 4 is rotatably connected to the inner wall of the support frame 3. An operating platform 5 is provided at the end of the support frame 3 away from the base 1, and auxiliary components 6 are provided on both sides of the operating platform 5.

[0025] In this embodiment: the auxiliary component 6 includes a support unit 61, the support unit 61 includes a U-shaped frame 611, a crossbar 612 is fixedly connected to the side surface of the U-shaped frame 611, a connecting frame 614 is slidably connected to the surface of the crossbar 612, a fixing bolt 615 is threadedly connected to the inner wall of the connecting frame 614, a rotating shaft 616 is fixedly connected to the side surface of the connecting frame 614, a turntable 617 is rotatably connected to the arc surface of the rotating shaft 616, a T-shaped frame 618 is slidably connected to the inner wall of the connecting frame 614, a limiting spring 619 is fixedly connected to the surface of the T-shaped frame 618, the side of the limiting spring 619 away from the T-shaped frame 618 is fixedly connected to the inner wall of the connecting frame 614, a connecting block 6110 is fixedly connected to the surface of the T-shaped frame 618, a pin 6111 is fixedly connected to the end of the connecting block 6110 near the turntable 617, a slot 6112 is opened on the arc surface of the turntable 617, and the pin 6111 is inserted into the inner wall of the slot 6112;

[0026] The auxiliary component 6 also includes a lifting unit 62, which includes a mounting rod 621. The mounting rod 621 is fixedly connected to the arc surface of the turntable 617. The arc surface of the mounting rod 621 is provided with a threaded groove. A locking bolt 622 is threadedly connected to the inner wall of the mounting rod 621 in the threaded groove. A net 623 is fixedly connected to the end of the locking bolt 622 away from the mounting rod 621. A protective plate 624 is fixedly connected to the lower surface of the U-shaped frame 611.

[0027] Specifically, a guide rod 613 is fixedly connected to the side surface of the U-shaped frame 611, and the connecting frame 614 is slidably connected to the surface of the guide rod 613. The guide rod 613 can constrain the position of the connecting frame 614 to ensure that the connecting frame 614 moves stably along the axial direction of the crossbar 612, and at the same time, it can assist the crossbar 612 in guiding the movement direction of the connecting frame 614.

[0028] Specifically, there are two connecting brackets 614, which are arranged symmetrically about the operating platform 5. The number of fixing bolts 615 matches the number of connecting brackets 614, and the fixing bolts 615 are in contact with the arc surface of the crossbar 612.

[0029] In this embodiment, the fixing bolt 615 can be tightened and pressed against the arc surface of the crossbar 612 to lock the position of the connecting frame 614, while ensuring the stability of the connecting frame 614 in the unfolded or closed state.

[0030] Specifically, the turntable 617 contacts the inner wall of the connecting frame 614. Through the cooperation between the turntable 617 and the rotating shaft 616, the rotation axis 616 of the mounting rod 621 can be constrained to ensure that the mounting rod 621 rotates in the specified direction under the operation of the construction personnel.

[0031] In this embodiment, there are two slots 6112, which are arranged in a circular array about the turntable 617.

[0032] In this embodiment, the position of the turntable 617 can be locked by the slot 6112 while the pin 6111 is inserted, so that the position of the turntable 617 can be restricted to two predetermined positions.

[0033] Specifically, there are two mounting rods 621, which are symmetrically arranged about the operating platform 5. The mounting rods 621 allow construction personnel to install locking bolts 622 to install the net 623. At the same time, they can support the position of the net 623, so that the net 623 can be deployed to protect the construction area.

[0034] Specifically, there are multiple locking bolts 622, which are arranged horizontally about the mounting rod 621.

[0035] In this embodiment: the locking bolt 622 can fix the net 623 to the mounting rod 621, so that the net 623 and the mounting rod 621 are linked together, and the net 623 can be unfolded along with the mounting rod 621 when the construction personnel unfold the mounting rod 621.

[0036] Working Principle: When construction workers need to perform high-altitude work on the bridge, they first enter the operating platform 5 and, in coordination with personnel below, place the construction materials into the operating platform 5. Once both the workers and materials are inside, the workers outside the operating platform 5 can control cylinder 4. Powered by the base 1, cylinder 4's drive end lifts the support frame 3 upwards. The support frame 3 gradually unfolds under the action of cylinder 4, raising the operating platform 5. When the operating platform 5 reaches the construction height, cylinder 4 is locked. Cylinder 4, in conjunction with the support frame 3, supports the operating platform 5, allowing the workers to then use the materials to construct the bridge. Before construction begins, according to the construction plan... The auxiliary component 6 is unfolded to the selected side. When the auxiliary component 6 is unfolded, the fixing bolt 615 on the movable connecting frame 614 is rotated counterclockwise. The fixing bolt 615 loses its lock on the connecting frame 614. The connecting frame 614 is pulled. Under the guidance of the crossbar 612 and the guide rod 613, the connecting frame 614, together with the rotating shaft 616 and the turntable 617, pulls the mounting rod 621 in the horizontal direction. The mounting rod 621, together with the locking bolt 622, pulls the net 623. The net 623 gradually unfolds during the movement. When the connecting frame 614 moves to the maximum distance, the fixing bolt 615 on the moved connecting frame 614 is rotated clockwise. When the fixing bolt 615 is tightened again, the connecting frame 614 is relocked.

[0037] After locking is complete, pull the connecting block 6110 upwards. The connecting block 6110 pulls the T-shaped bracket 618 and the pin 6111. The T-shaped bracket 618 is compressed and squeezes the limiting spring 619. The limiting spring 619 is compressed and deformed, and the pin 6111 is pulled out of the slot 6112, losing its locking effect on the turntable 617. When the turntable 617 is unlocked, rotate the turntable 617 clockwise. Under the guidance of the rotating shaft 616, the turntable 617 drives the mounting rod 621. The mounting rod 621, in conjunction with the locking rotation, rotates the net 623. After the mounting rod 621 rotates 90 degrees, release the connecting block 6110. At the same time, the T-shaped bracket 618 loses the pressure applied to the limiting spring 619, and the limiting spring 619 returns to its original position. The spring is engaged, and in conjunction with the T-shaped frame 618, the connecting block 6110 is pulled back to reset. The reset connecting block 6110 pushes the pin 6111 into another slot 6112 to re-lock the position of the turntable 617. Then, the other side mounting rod 621 is unfolded according to the above steps. When the net 623 is fully unfolded, it can protect the area below the construction site. By setting the auxiliary component 6, the lifting platform can protect the area below the construction site when construction workers use it for construction. This reduces the risk of materials or tools falling out of their hands and threatening the construction workers below the construction site, and further improves the safety of construction workers when using the equipment for construction.

Claims

1. A lifting platform for road and bridge construction, comprising a base (1), a connecting frame (2), and a support frame (3), characterized in that: The connecting frame (2) is installed on the upper surface of the base (1), and the support frame (3) is installed inside the connecting frame (2). The inner wall of the connecting frame (2) is provided with a cylinder (4). The driving end of the cylinder (4) is rotatably connected to the inner wall of the support frame (3). The end of the support frame (3) away from the base (1) is provided with an operating platform (5). Both sides of the operating platform (5) are provided with auxiliary components (6). The auxiliary components (6) include a support unit (61). The support unit (61) includes a U-shaped frame (611). A crossbar (612) is fixedly connected to the side surface of the U-shaped frame (611). A connecting frame (614) is slidably connected to the surface of the crossbar (612). A fixing bolt (615) is threadedly connected to the inner wall of the connecting frame (614). A rotating shaft (616) is fixedly connected to the side surface of the connecting frame (614). A turntable (617) is rotatably connected to the arc surface of the rotating shaft (616). The auxiliary component (6) also includes a lifting unit (62), which includes a mounting rod (621). The mounting rod (621) is fixedly connected to the arc surface of the turntable (617). The arc surface of the mounting rod (621) is provided with a threaded groove. The mounting rod (621) is threadedly connected to a locking bolt (622) on the inner wall of the threaded groove. A net (623) is fixedly connected to the end of the locking bolt (622) away from the mounting rod (621). A protective plate (624) is fixedly connected to the lower surface of the U-shaped frame (611).

2. The lifting platform for road and bridge construction according to claim 1, characterized in that: A guide rod (613) is fixedly connected to the side surface of the U-shaped frame (611). The connecting frame (614) is slidably connected to the surface of the guide rod (613). A T-shaped frame (618) is slidably connected to the inner wall of the connecting frame (614). A limit spring (619) is fixedly connected to the surface of the T-shaped frame (618). The side of the limit spring (619) away from the T-shaped frame (618) is fixedly connected to the inner wall of the connecting frame (614). A connecting block (6110) is fixedly connected to the surface of the T-shaped frame (618). A pin (6111) is fixedly connected to the end of the connecting block (6110) near the turntable (617). A slot (6112) is opened on the arc surface of the turntable (617). The pin (6111) is inserted into the inner wall of the slot (6112).

3. The lifting platform for road and bridge construction according to claim 1, characterized in that: There are two connecting frames (614), which are arranged symmetrically about the operating platform (5). The number of fixing bolts (615) matches the number of connecting frames (614), and the fixing bolts (615) are in contact with the arc surface of the crossbar (612).

4. The lifting platform for road and bridge construction according to claim 1, characterized in that: The turntable (617) is in contact with the inner wall of the connecting frame (614).

5. A lifting platform for road and bridge construction according to claim 2, characterized in that: The number of slots (6112) is two, and the two slots (6112) are arranged in a circular array about the turntable (617).

6. A lifting platform for road and bridge construction according to claim 1, characterized in that: There are two mounting rods (621), and the two mounting rods (621) are arranged symmetrically about the operating platform (5).

7. A lifting platform for road and bridge construction according to claim 1, characterized in that: The number of locking bolts (622) is multiple, and the multiple locking bolts (622) are arranged horizontally about the mounting rod (621).

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