A crash barrier construction trolley

Abstract

The utility model provides a kind of anti-collision guardrail construction trolley, support frame one end extends to bridge outer side along horizontal direction, the other end is correspondingly connected with counterweight, two support frames are fixed respectively in the both ends of mobile base by stand, two hangers are respectively assembled in the one end of support frame that extends bridge outer side in detachable mode, hanger includes two sections of rod body that are slidably sleeved along longitudinal direction, first hoisting mechanism is equipped above hanger, the traction rope of first hoisting mechanism is connected on basket after passing through hanger, mobile frame is slidably assembled between two support frames, second hoisting mechanism is equipped on mobile frame, and second hoisting mechanism is slidably assembled on mobile frame. I-shaped steel is used as the main material of support frame and mobile frame, the overall strength and stability of trolley are guaranteed. The design of counterweight, pull rod and other structures further enhances the balance and anti-overturning ability of trolley, ensures the safety and reliability in construction process.

Description

Technical Field

[0001] This utility model belongs to the field of bridge construction technology, specifically relating to a construction trolley for anti-collision guardrails. Background Technology

[0002] The installation of crash barriers is a crucial yet inherently dangerous task in bridge construction and maintenance. Traditional methods often involve erecting scaffolding or using simple hoisting equipment, both of which have numerous drawbacks. Erecting scaffolding is not only time-consuming and labor-intensive, but its dismantling after completion is also cumbersome. Furthermore, scaffolding installation is heavily constrained by bridge terrain and space limitations, resulting in poor flexibility. Simple hoisting equipment offers limited functionality and stability, failing to meet the demands of different construction locations and heights. Moreover, it carries low safety risks during installation, increasing the risk of accidents and threatening the lives of construction workers.

[0003] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art. This utility model provides a construction trolley for anti-collision guardrails.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A crash barrier construction trolley includes:

[0007] The support frame has one end extending horizontally outwards from the bridge, and the other end is connected to a counterweight. Two support frames are respectively fixed to both ends of the movable base by columns.

[0008] The two suspenders are detachably assembled at the end of the support frame that extends outward from the bridge. Each suspender includes two sections of rod that are slidably connected in the longitudinal direction. A first lifting mechanism is provided above the suspender. The traction rope of the first lifting mechanism passes through the suspender and is connected to the suspended basket.

[0009] A movable frame is slidably mounted between two support frames, and a second lifting mechanism is provided on the movable frame, which is slidably mounted on the movable frame.

[0010] Preferably, the boom is connected to the slide block, the slide block is slidably mounted on the support frame, the upper end of the boom is fixed to the slide block, and a tie rod connecting the two slide blocks is provided between the two support frames.

[0011] Preferably, the upper edges of both sides of the suspended basket are fixed to the lower end of the suspension rod, and the suspended basket is provided with holes for corresponding traction ropes. The traction rope passes through the holes and is connected to a limit block.

[0012] Preferably, the support frame is an I-beam, and a dovetail groove corresponding to the upper wing plate of the support frame is provided below the slide.

[0013] Preferably, the upper wing plate of the support frame has multiple through holes, and the locking bolts pass through the slide and the upper wing plate of the support frame to connect the locking nuts.

[0014] Preferably, the movable frame is provided with sliding mechanisms corresponding to the lower wing plates of the support frame at both ends, the movable frame is an I-beam, and a sliding mechanism corresponding to the second hoisting mechanism is provided in the middle of the movable frame.

[0015] Preferably, the sliding mechanism includes a U-shaped component and a drive motor. The U-shaped component is adapted to a corresponding support frame or movable frame. Drive wheels for the lower wing plates of the support frame or movable frame are provided on both sides of the U-shaped component. A drive motor connected to the drive wheels is provided on the outer side of the U-shaped component.

[0016] Preferably, the four hub motors are distributed on both sides of the movable base.

[0017] Beneficial effects: Using I-beams as the main material for the support frame and moving frame ensures the overall strength and stability of the trolley. The design of counterweights, tie rods, and other structures further enhances the trolley's balance and anti-overturning ability, ensuring safety and reliability during construction. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:

[0019] Figure 1 A simplified structural diagram of the trolley in a specific embodiment provided by this utility model;

[0020] Figure 2 This is a simplified side view of the trolley in a specific embodiment provided by this utility model.

[0021] In the diagram: 1. Support frame; 2. Counterweight; 3. Column; 4. Movable base; 5. Hub motor; 6. Sliding mechanism; 7. Second lifting mechanism; 8. First lifting mechanism; 9. Hoist; 10. Suspended basket; 11. Slide seat; 12. Tie rod; 13. Movable frame; 14. Crane guardrail. Detailed Implementation

[0022] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art are within the protection scope of this utility model.

[0023] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected" and "linked" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0024] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0025] like Figure 1-2 As shown, a construction trolley for crash barriers includes a support frame 1, a boom 9, and a movable frame 13. The support frame 1 is made of I-beams, possessing high strength and stability, and capable of withstanding various loads during construction. One end of the support frame 1 extends horizontally outwards from the bridge, and the other end is connected to a counterweight 2. The two support frames 1 are respectively fixed to both ends of the movable base 4 via columns 3, and diagonal bracing is provided between the support frame 1 and the columns 3. The counterweight 2 ensures the balance of the trolley during construction, preventing overturning due to excessive force on one side.

[0026] Two suspenders 9 are detachably mounted on the end of the support frame 1 extending outside the bridge. The suspenders 9 are made of square or round steel, and their upper ends are stably connected to the support frame 1 via bolts. This ensures the stability of the suspended platform 10 during construction, preventing it from swaying in the wind. Each suspender 9 consists of two longitudinally slidingly connected sections, designed to extend and retract according to the actual construction height, meeting the needs of different bridge crash barrier 14 constructions. A first lifting mechanism 8 is located above the suspenders 9. The traction rope of the first lifting mechanism 8 passes through the suspenders 9 and is connected to the suspended platform 10. The first lifting mechanism 8 allows for the raising and lowering of the suspended platform 10, facilitating the installation and maintenance of the crash barrier 14 by construction personnel.

[0027] The mobile frame 13 is used to lift the precast concrete crash barrier 14 to the side of the bridge. Specifically, the mobile frame 13 is slidably assembled between two support frames 1. A second lifting mechanism 7 is provided on the mobile frame 13. The second lifting mechanism 7 can be used to lift the construction crash barrier 14. The second lifting mechanism 7 is slidably assembled on the mobile frame 13 to achieve multi-directional and multi-angle lifting of the crash barrier 14, ensuring the convenience of installing the crash barrier 14.

[0028] In this embodiment, both the first lifting mechanism 8 and the second lifting mechanism 7 are winches, which are connected to the first control panel. The first control panel is set on the suspended platform 10, so that the operator can adjust the position of the crash barrier 14 according to actual needs.

[0029] In an optional embodiment, the suspender 9 is connected to the slide 11, which is slidably mounted on the support frame 1. The design of the slide 11 allows the suspender 9 to slide horizontally on the support frame 1, and the slide 11 can be adjusted according to the actual bridge specifications, further expanding the construction scope.

[0030] The upper end of the boom 9 is fixed to the slide block 11, and a tie rod 12 is provided between the two support frames 1 to connect the two slide blocks 11. The tie rod 12 enhances the connection stability between the two slide blocks 11 and ensures the stability of the boom 9 during horizontal movement. Since the support frame 1 is an I-beam, a dovetail groove corresponding to the upper flange of the support frame 1 is provided below the slide block 11 to ensure stable sliding.

[0031] Furthermore, the upper wing plate of the support frame 1 is provided with multiple through holes, and the locking bolts pass through the slide block 11 and the upper wing plate of the support frame 1 to connect the locking nuts, so as to make adjustments according to the actual situation of the bridge edge (such as the bridge width, the condition of materials placed at the edge, etc.).

[0032] The upper edges of both sides of the suspended platform 10 are fixed to the lower ends of the suspension rods 9. The suspended platform 10 has holes for the corresponding traction ropes. Specifically, the length of the suspended platform 10 is adapted to the spacing between the suspension rods 9 of the two support frames 1. The suspended platform 10 is a square basket welded from metal pipes. Holes are provided on the metal pipes on both sides corresponding to the suspension rods 9, and the suspension rods 9 and corresponding metal pipes are welded and fixed. The frame structure of the suspended platform 10 is common knowledge in the art. After the traction rope passes through the holes, it is connected to a limit block. The limit block is a metal disc or metal block, which prevents the traction rope from slipping out of the holes during construction, ensuring the safe use of the suspended platform 10. The limit block can also be fixed to the side frame of the suspended platform 10 with fixing bolts to ensure stability.

[0033] In an optional embodiment, the movable frame 13 is provided with sliding mechanisms 6 at both ends corresponding to the lower wing plates of the support frame 1. The movable frame 13 is an I-beam. The middle part of the movable frame 13 is provided with a sliding mechanism 6 corresponding to the second hoisting mechanism 7. The structure of the sliding mechanism 6 is the same, and the size can be adjusted according to the size of the movable frame 13 and the support frame 1. The sliding mechanism 6 refers to the connection structure of the gantry crane hoist. In this embodiment, the sliding mechanism 6 includes a U-shaped part and a drive motor. The U-shaped part is adapted to the corresponding support frame 1 or movable frame 13. The two ends of the U-shaped part extend to the sides of the corresponding I-beam. Drive wheels corresponding to the lower wing plates of the support frame 1 or the lower wing plates of the movable frame 13 are provided on both sides of the U-shaped part, so as to support the corresponding I-beam through the drive wheels. A drive motor corresponding to the drive wheel is provided on the outside of the U-shaped part. The drive motor is connected to the first control panel.

[0034] In one optional embodiment, four hub motors 5 are distributed on both sides of the mobile base 4. Specifically, two hub motors 5 are provided on each side of the mobile base 4. The hub motors 5 enable the construction trolley to move autonomously without additional traction equipment, thereby improving the flexibility and mobility of the construction trolley and allowing for quick adjustment of the construction position according to construction needs.

[0035] The hub motor 5 is connected to the second control panel via a connecting cable. The second control panel allows bridge deck workers to control the movement of the base 4.

[0036] Furthermore, the suspended platform 10 is equipped with an extension arm corresponding to the upper wing plate of the bridge, and an anti-slip rubber layer corresponding to the lower surface of the upper wing plate is provided above the extension arm. The extension arm and the anti-slip rubber layer can increase the connection stability between the suspended platform 10 and the bridge, prevent the suspended platform 10 from swaying during construction, and improve construction safety.

[0037] In this embodiment, one end of the extension arm is hinged to the bottom surface of the suspended platform 10 on the side near the bridge. After the suspended platform 10 is hoisted into place, the extension arm is rotated out, and then the first hoisting mechanism 8 lifts the suspended platform 10. The extension arm and the lower surface of the upper flange of the bridge are squeezed and have friction, thereby ensuring the stability of the suspended platform 10.

[0038] In actual construction, the construction trolley of the crash barrier 14 is first moved to the bridge construction position. The position of the slider is adjusted according to the width of the bridge and the designed travel trajectory of the moving base 4 so that the basket 10 is located on the outside of the bridge to be constructed, and the crash barrier 14 is easy to install. The sliding block 11 is fixed on the support frame 1 using locking bolts and locking nuts.

[0039] The first lifting mechanism 8 is started, and the suspended platform 10 is slowly lowered to a suitable working height by means of the traction rope. Construction workers enter the suspended platform 10 to install the crash barrier 14.

[0040] When it is necessary to hoist the crash barrier 14, the second hoisting mechanism 7 is activated to lift and install the crash barrier 14. Then, the materials and tools are accurately transported to the construction location through the moving frame 13 and the sliding mechanism 6 of the second hoisting mechanism 7, making it convenient for construction personnel to access them.

[0041] As construction progresses, the construction position is adjusted. Specifically, the hub motor 5 drives the movable base 4 to move the entire construction trolley to the new construction position (during this process, the extension arm should be rotated to release friction with the lower surface of the bridge's upper flange). After construction is completed, the suspended platform 10 and the second lifting mechanism 7 are raised to a safe height, and debris and tools on the construction trolley are cleared. Then, the hub motor 5 is used to move the construction trolley to a designated storage location for proper safekeeping and future use.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be within the scope of protection of the pending claims of the present utility model.

Claims

1. A construction trolley for crash barriers, characterized in that, include: The support frame has one end extending horizontally outwards from the bridge, and the other end is connected to a counterweight. The two support frames are respectively fixed to both ends of the movable base by columns. The two suspenders are detachably assembled at the end of the support frame that extends outward from the bridge. Each suspender includes two sections of rod that are slidably connected in the longitudinal direction. A first lifting mechanism is provided above the suspender. The traction rope of the first lifting mechanism passes through the suspender and is connected to the suspended basket. A movable frame is slidably mounted between two support frames, and a second lifting mechanism is provided on the movable frame, which is slidably mounted on the movable frame.

2. The anti-collision guardrail construction trolley according to claim 1, characterized in that, The boom is connected to the slide block, the slide block is slidably mounted on the support frame, the upper end of the boom is fixed to the slide block, and a tie rod is provided between the two support frames to connect the two slide blocks.

3. The anti-collision guardrail construction trolley according to claim 2, characterized in that, The upper edges on both sides of the suspended basket are fixed to the lower end of the suspension rod. The suspended basket is provided with holes for the corresponding traction ropes. The traction ropes pass through the holes and are connected to limit blocks.

4. The anti-collision guardrail construction trolley according to claim 2, characterized in that, The support frame is an I-beam, and a dovetail groove corresponding to the upper wing plate of the support frame is provided below the slide.

5. The anti-collision guardrail construction trolley according to claim 3, characterized in that, The upper wing plate of the support frame has multiple through holes, and the locking bolts pass through the slide and the upper wing plate of the support frame to connect the locking nuts.

6. The anti-collision guardrail construction trolley according to claim 1, characterized in that, The movable frame is equipped with sliding mechanisms at both ends corresponding to the lower wing plates of the support frame. The movable frame is an I-beam, and a sliding mechanism corresponding to the second hoisting mechanism is provided in the middle of the movable frame.

7. The anti-collision guardrail construction trolley according to claim 6, characterized in that, The sliding mechanism includes a U-shaped component and a drive motor. The U-shaped component is adapted to a corresponding support frame or moving frame. Drive wheels for the lower wing plates of the support frame or moving frame are provided on both sides of the U-shaped component. A drive motor connected to the drive wheels is provided on the outside of the U-shaped component.

8. The anti-collision guardrail construction trolley according to claim 1, characterized in that, Four hub motors are distributed on both sides of the movable base.

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