Movable bridge guardrail construction trolley

Abstract

The invention provides a movable bridge guardrail construction trolley, and belongs to the technical field of bridge guardrail construction.The movable bridge guardrail construction trolley comprises a frame structure, an operation platform, a crawling ladder, a pulley assembly and a safety assembly, the frame structure is of an n-shaped structure, and the operation platform is slidably connected to the middle of the frame structure; the base is used for providing safe construction space for workers; a crawling ladder is arranged between the frame structure and the operation platform, one end of the crawling ladder is rotationally connected with the interior of the operation platform, and the other end of the crawling ladder is hung on the frame structure to facilitate workers to go up and down the operation platform; pulley assemblies are arranged at the bottoms of the two sides of the frame structure and used for driving the construction trolley to move. A safety assembly is arranged on the construction trolley and used for guaranteeing the safety of constructors. The safety problem of high-altitude operation of workers in bridge middle guardrail construction and the problems that middle guardrail construction is low in efficiency and high in cost can be solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of bridge guardrail construction, and in particular, relates to a mobile bridge guardrail construction trolley. Background Art

[0002] Elevated bridge guardrails are a vital component of bridge structures. They not only protect the safety of vehicles and pedestrians, preventing falls or collisions in the event of an accident, but also play an important role in improving the overall aesthetics and functionality of the bridge. This type of guardrail is usually set at the edge of the bridge or in the central dividing strip. Its design and construction must take into account a variety of factors to ensure that it can adapt to different environments and conditions while providing safety protection.

[0003] In the construction of elevated bridge guardrails, workers working at height is a complex and high-risk process. This not only involves the personal safety of workers, but also directly affects the construction efficiency and cost of the project. The safety issues of high-altitude operations and low construction efficiency and high costs are the main challenges faced in the construction of elevated bridge guardrails. Summary of the invention

[0004] In view of this, the present invention provides a mobile bridge guardrail construction trolley, which can solve the safety problems of workers working at high altitudes during the construction of the bridge guardrail and the problems of low efficiency and high cost of the middle guardrail construction.

[0005] The present invention is achieved in that:

[0006] The present invention provides a mobile bridge guardrail construction trolley, which includes a frame structure, an operating platform, a ladder, a pulley assembly and a safety assembly. The frame structure is a gate-shaped structure, and the operating platform is slidably connected to the middle position of the frame structure to provide a safe construction space for workers; the ladder is arranged between the frame structure and the operating platform, one end of the ladder is rotatably connected to the inside of the operating platform, and the other end is hung on the frame structure to facilitate workers to get on and off the operating platform; the pulley assemblies are arranged at the bottom of both sides of the frame structure, and the pulley assemblies are used to drive the construction trolley to move; the safety assembly is arranged on the construction trolley, and the safety assembly is used to ensure the safety of construction personnel;

[0007] The safety component includes a first hanging member and a second rivet member. The first hanging member is fixed between the frame structure and the operating platform to ensure the stability of the installation of the operating platform. One end of the second rivet member is fixedly connected to both sides of the operating platform, and the other end is fixedly connected to the ground to further ensure the safety of the construction process.

[0008] On the basis of the above technical solution, the mobile bridge guardrail construction trolley of the present invention can also be improved as follows:

[0009] Wherein, the frame structure includes a main support frame, an auxiliary support frame and a center of gravity moving part, the main support frame includes two vertical rods and two cross rods fixed between the two vertical rods, the two cross rods are respectively a first cross rod and a second cross rod from top to bottom; the auxiliary support frame includes a plurality of first oblique rods, the first oblique rods are respectively fixedly connected to the two sides of the vertical rods, and a right-angled isosceles triangle structure is formed between the vertical rods, the first oblique rods and the ground; the position of the right-angled vertex of the right-angled isosceles triangle structure is perpendicular to the first oblique rod to form a second oblique rod, and the second oblique rod is fixedly connected to the first oblique rod; a plurality of screws are fixed at the position where the vertical rods and the first oblique rods contact the ground, and the length of the screws is 1 / 3 of the length of the vertical rods, which are used to fix the frame structure in the construction position;

[0010] The top of the first crossbar is provided with the center-of-gravity moving member, and the center-of-gravity moving member is used to balance the center-of-gravity position of the frame structure;

[0011] The vertical rod, the first cross rod, the second cross rod, the first diagonal rod and the second diagonal rod are all connected and fixed via a hinge seat.

[0012] Furthermore, the center of gravity moving part includes a gravity disk, a rotating shaft and a track. The track is arranged at the top of the first cross bar. The gravity disk is arranged in the track through the rotating shaft. A through hole is opened at a non-center position of the gravity disk. The rotating shaft is an I-shaped structure, and the gravity disk is positioned by passing through the through hole on the gravity disk; scale lines are arranged at corresponding positions of the first cross bar and the track.

[0013] Furthermore, the operating platform includes a moving part, a connecting part and a hanging basket platform, the hanging basket platform is fixed to the moving part through the connecting part, and the moving part is fixed to the second cross bar, and is used to drive the hanging basket platform to move horizontally; the moving part includes a driving wheel, a return wheel and a motor, the driving wheel and the return wheel are respectively fixed at the top position of the second cross bar, and are symmetrically arranged about the center point; and the driving wheel, the return wheel and the second cross bar are connected by a rotating shaft, and a bracket is provided at the bottom of the second cross bar corresponding to the driving wheel, the motor is fixed on the bracket, and the output shaft of the motor is fixedly connected to the driving wheel, and is used to drive the driving wheel to rotate; the driving wheel and the return wheel are both provided with grooves, and the inside of the groove is connected with a cable, and the hanging basket platform is fixed on the cable, and is used to drive the hanging basket platform to move horizontally.

[0014] Furthermore, the connecting member includes a friction clamp and the arc rod, the friction clamp fully covers and clamps the cable, and a friction layer is provided at the position in contact with the cable to ensure the stability of the connection between the friction clamp and the cable; the arc rod is fixed to the bottom of the friction clamp, and the other end is fixedly connected to the top of the hanging basket platform; the arc rod is an arched parabolic structure, which is used to reduce wind resistance;

[0015] The hanging basket platform is a square basket structure, and its side walls are arranged in an arc shape that is concave inward, so as to facilitate the construction of bridge guardrails.

[0016] Furthermore, the cable passes through a tensioner at the center of the second crossbar, and the tensioner is a C-shaped structure for ensuring the moving direction of the hanging basket platform.

[0017] Furthermore, the ladder is arranged on both sides of the hanging basket platform, one end of which is connected to the top edge of the hanging basket platform through a hinge shaft, and the other end is fixed to the ground protrusion by bending, so as to facilitate construction workers to enter the hanging basket platform;

[0018] The arc-shaped structure of the ladder is arranged in an arch shape to enhance its stability; a plurality of steps are arranged in the middle position to facilitate climbing; fixing ears are arranged at corresponding positions at the bottom of the ladder, and fixing rods are inserted between the fixing ears to further support and stabilize the ladder.

[0019] Furthermore, the pulley assembly includes a universal wheel group and a brake component. The universal wheel groups are respectively arranged at the bottom of the vertical rod, and each group of the universal wheel groups includes 4 universal wheels, which are respectively fixed to the bottom of the vertical rod through a fixed platform; the brake components are arranged around the universal wheel group, and the brake components are used to limit the movement of the universal wheel group.

[0020] Furthermore, the first hanging member is a hook rope, the bottom of which is fixed to the four corners of the hanging basket platform, and the top is fixed to the first cross bar through a hook.

[0021] Furthermore, the second rivet member includes a rivet and a pulling rope, one end of the pulling rope is fixed to the hanging basket platform, and the other end is fixed to the rivet, and the rivet is nailed into the ground at an angle of 45° to further reinforce the hanging basket platform.

[0022] Compared with the prior art, the mobile bridge guardrail construction trolley provided by the present invention has the following beneficial effects:

[0023] The construction trolley of the present invention is designed with a special frame structure, which enables workers and site managers to easily move between the left and right sides of the bridge. This improves work efficiency and reduces the risk of workers working at height. By operating the sliding connection mechanism of the platform, workers can safely move from one work area to another without leaving the construction trolley.

[0024] The operating platform is spacious and can accommodate at least two workers to carry out construction work at the same time. The sliding connection of the platform is in the middle of the frame structure, which ensures the stability and safety of the workers during the construction process. In addition, the second rivet parts fixedly connected on both sides of the operating platform further enhance the stability of the platform and ensure the safety of the construction process.

[0025] The bottom of the construction trolley is equipped with a pulley assembly, including a universal wheel set and a brake. The universal wheel set allows the trolley to move easily in different directions, while the brake can lock the wheels during construction to prevent the trolley from moving accidentally and ensure construction safety. The trolley can quickly adjust its position when it needs to be moved, while remaining stable during construction.

[0026] The construction trolley of the present invention is designed to meet the needs of different bridge construction environments and has high adaptability. The trolley can flexibly operate in narrow spaces or on wide bridges. In addition, due to its easy operation and high safety, the construction trolley of the present invention is easy to promote and use in various bridge construction projects.

[0027] The design of the safety component improves the safety of the trolley. The combined use of the first hanging piece and the second rivet piece not only ensures the stability of the operating platform, but also further enhances the stability and safety of the entire construction trolley through a fixed connection with the ground.

[0028] The moving mechanism of the operating platform includes a combination of drive wheels, return wheels and motors. This design enables the platform to move horizontally, making it easier for workers to construct bridge guardrails. The setting of cables and tensioners ensures the stability and directionality of the movement of the platform.

[0029] The ladder is designed with the climbing convenience and safety of workers in mind. Its curved structure enhances stability, the multi-layered step-like design facilitates climbing, and the fixing ears and fixing rods at the bottom provide additional support and stability.

[0030] In summary, the mobile bridge guardrail construction trolley of the present invention not only improves the construction efficiency through its innovative design, but also greatly enhances the safety during the construction process, and has high practical value and promotion potential. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0032] Figure 1 It is a schematic diagram of a mobile bridge guardrail construction trolley;

[0033] Figure 2 It is a cross-sectional view of a mobile bridge guardrail construction trolley;

[0034] Figure 3 for Figure 2 A magnified view of middle;

[0035] Figure 4 for Figure 2 Enlarged view of middle B;

[0036] Figure 5 It is a schematic diagram of an operating platform of a mobile bridge guardrail construction trolley;

[0037] Figure 6 for Figure 5 Enlarged view of middle C;

[0038] Figure 7 It is a schematic diagram of a central moving part of a mobile bridge guardrail construction trolley;

[0039] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0040] 10. Frame structure; 11. Main support frame; 12. Auxiliary support frame; 13. Center of gravity moving part; 131. Gravity plate; 132. Rotating shaft; 133. Track; 20. Operating platform; 21. Moving part; 211. Driving wheel; 212. Return wheel; 213. Motor; 22. Connecting part; 221. Friction clamp; 222. Arc rod; 23. Hanging basket platform; 30. Ladder; 40. Pulley assembly; 41. Universal wheel assembly; 42. Brake part; 50. Safety component; 51. First hanging part; 52. Second rivet part. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0042] like Figure 1 , Figure 2As shown, it is a first embodiment of a mobile bridge guardrail construction trolley provided by the present invention. In this embodiment, it includes a frame structure 10, an operating platform 20, a ladder 30, a pulley assembly 40 and a safety assembly 50. The frame structure 10 is a door-shaped structure. The operating platform 20 is slidably connected to the middle position of the frame structure 10 to provide a safe construction space for workers; a ladder 30 is arranged between the frame structure 10 and the operating platform 20, one end of the ladder 30 is connected to the inside of the operating platform 20 for rotation, and the other end is hung on the frame structure 10 to facilitate workers to get on and off the operating platform; pulley assemblies 40 are arranged at the bottom of both sides of the frame structure 10, and the pulley assemblies 40 are used to drive the construction trolley to move; a safety assembly 50 is arranged on the construction trolley, and the safety assembly 50 is used to ensure the safety of construction personnel;

[0043] The safety component 50 includes a first hanging component 51 and a second rivet component 52. The first hanging component 51 is fixed between the frame structure 10 and the operating platform 20 to ensure the stability of the installation of the operating platform 20; one end of the second rivet component 52 is fixedly connected to both sides of the operating platform 20, and the other end is fixedly connected to the ground to further ensure the safety of the construction process.

[0044] Among them, in the above technical scheme, the frame structure 10 includes a main support frame 11, an auxiliary support frame 12 and a center of gravity moving member 13, the main support frame 11 includes two vertical rods and two cross rods fixed between the two vertical rods, the two cross rods are respectively the first cross rod and the second cross rod from top to bottom; the auxiliary support frame 12 includes a plurality of first oblique rods, the first oblique rods are respectively fixedly connected to the two sides of the vertical rods, and a right-angled isosceles triangle structure is formed between the vertical rods, the first oblique rods and the ground; the position of the right-angled vertex of the right-angled isosceles triangle structure is perpendicular to the first oblique rod to form a second oblique rod, and the second oblique rod is fixedly connected to the first oblique rod; a plurality of screws are fixed at the position where the vertical rods and the first oblique rods contact the ground, and the length of the screws is 1 / 3 of the length of the vertical rods, which are used to fix the frame structure 10 in the construction position;

[0045] A gravity center moving member 13 is provided at the top of the first crossbar, and the gravity center moving member 13 is used to balance the gravity center position of the frame structure 10;

[0046] The vertical rod, the first cross rod, the second cross rod, the first diagonal rod and the second diagonal rod are all connected and fixed via a hinge seat.

[0047] like Figure 3 , Figure 7As shown, further, in the above technical scheme, the center of gravity moving member 13 includes a gravity disk 131, a rotating shaft 132 and a track 133. The track 133 is arranged at the top of the first cross bar, and the gravity disk 131 is arranged in the track 133 through the rotating shaft 132. A through hole is opened at a non-center position of the gravity disk 131. The rotating shaft 132 is an I-shaped structure, and the gravity disk 131 is positioned by passing through the through hole on the gravity disk 131; scale lines are arranged at corresponding positions of the first cross bar and the track 133.

[0048] like Figure 5 As shown, further, in the above technical solution, the operating platform 20 includes a moving member 21, a connecting member 22 and a hanging basket platform 23, the hanging basket platform 23 is fixed to the moving member 21 through the connecting member 22, and the moving member 21 is fixed on the second cross bar, and is used to drive the hanging basket platform 23 to move horizontally; the moving member 21 includes a driving wheel 211, a return wheel 212 and a motor 213, the driving wheel 211 and the return wheel 212 are respectively fixed at the top position of the second cross bar, and are symmetrically arranged about the center point; and the driving wheel 211, the return wheel 212 are connected to the second cross bar through a rotating shaft, and a bracket is arranged at a position corresponding to the bottom of the second cross bar and the driving wheel 211, and a motor 213 is fixed on the bracket, and the output shaft of the motor 213 is fixedly connected to the driving wheel 211, and is used to drive the driving wheel 211 to rotate; grooves are provided on the driving wheel 211 and the return wheel 212, and cables are connected inside the grooves, and the hanging basket platform 23 is fixed on the cables, and is used to drive the hanging basket platform 23 to move horizontally.

[0049] like Figure 6 As shown, further, in the above technical solution, the connecting member 22 includes a friction clamp 221 and an arc rod 222. The friction clamp 221 fully covers and clamps the cable, and a friction layer is provided at the position in contact with the cable to ensure the stability of the connection between the friction clamp 221 and the cable; the arc rod 222 is fixed to the bottom of the friction clamp 221, and the other end is fixedly connected to the top of the hanging basket platform 23; the arc rod 222 is an arched parabolic structure, which is used to reduce wind resistance;

[0050] The hanging basket platform 23 is a square basket structure, and its side wall is arranged in an arc shape that is concave inward, so as to facilitate the construction of the bridge guardrail.

[0051] Furthermore, in the above technical solution, the cable passes through the tensioner at the center position of the second cross bar, and the tensioner is a C-shaped structure, which is used to ensure the moving direction of the hanging basket platform 23.

[0052] Further, in the above technical solution, the ladder 30 is arranged at both sides of the hanging basket platform 23, one end of which is connected to the top edge of the hanging basket platform 23 through a hinge shaft, and the other end is fixed to the ground protrusion by bending, so as to facilitate construction workers to enter the hanging basket platform 23;

[0053] The arc structure of the ladder 30 is set to an arch shape to enhance its stability; a plurality of steps are set in the middle position to facilitate climbing; fixing ears are respectively set at the corresponding positions at the bottom of the ladder 30, and fixing rods are inserted between the fixing ears to further support and stabilize the ladder 30.

[0054] like Figure 4 As shown, further, in the above technical solution, the pulley assembly 40 includes a universal wheel group 41 and a brake member 42. The universal wheel groups 41 are respectively arranged at the bottom of the vertical rod, and each group of universal wheel groups 41 includes 4 universal wheels, which are respectively fixed at the bottom of the vertical rod through a fixed platform; brake members 42 are arranged around the universal wheel group 41, and the brake members 42 are used to limit the movement of the universal wheel group 41.

[0055] Furthermore, in the above technical solution, the first hanging member 51 is a hook rope, the bottom of which is fixed to the four corners of the hanging basket platform 23, and the top is fixed to the first cross bar through a hook.

[0056] Furthermore, in the above technical solution, the second rivet member 52 includes a rivet and a pulling rope, one end of the pulling rope is fixed to the hanging basket platform 23, and the other end is fixed to the rivet, and the rivet is nailed into the ground at an angle of 45° to further reinforce the hanging basket platform 23.

[0057] The present invention provides a second embodiment of a mobile bridge guardrail construction trolley. In this embodiment, some components are improved and optimized to adapt to different construction environments and improve construction efficiency. The following is a detailed description of the second embodiment:

[0058] The adjustable design of the main support frame 11 includes two vertical rods, which are designed with a telescopic mechanism inside, similar to the principle of a telescopic telescope. The telescopic movement of the vertical rods can be achieved by manual knobs, electric motors or hydraulic systems, so that the vertical rods can be accurately adjusted according to the height of the bridge. The telescopic mechanism of the vertical rods is equipped with a limit device to ensure that the vertical rods do not exceed the designed safety range during the adjustment process, preventing structural instability or damage due to excessive telescopic movement.

[0059] The adjustable design of the auxiliary support frame 12 allows the distance between it and the main support frame 11 to be adjusted to accommodate bridges of different widths. This adjustment can be achieved through a set of precise gear and rack systems. Construction workers can rotate the gear to drive the rack to adjust the position of the auxiliary support frame 12. A limit device is also designed in the adjustment mechanism of the auxiliary support frame 12 to ensure that the auxiliary support frame 12 can maintain the stability and safety of the structure when it is adjusted to any position.

[0060] The connections between the vertical bar, the first cross bar, the second cross bar, and the first diagonal bar and the second diagonal bar are made of high-strength articulated seats, which not only provide a stable connection, but also allow a certain range of rotation to adapt to the slight inclination and unevenness of the bridge surface. The design of the articulated seats takes into account corrosion resistance and wear resistance, and stainless steel materials or special surface treatment are used to ensure that the performance can be maintained in various harsh construction environments.

[0061] In order to further enhance the stability of the frame structure 10, particularly when the bridge height and width vary greatly, the center of gravity moving member 13 can move freely on the entire first crossbar. This mobility can be achieved through a low-friction sliding system so that the center of gravity can be dynamically adjusted according to the specific construction conditions of the bridge. The position adjustment of the center of gravity moving member 13 can be completed automatically by manual operation or linkage with the telescopic mechanism of the vertical rod to ensure that the center of gravity of the frame structure 10 remains in the best position at all times, thereby providing maximum stability.

[0062] Foldable operating platform 20: The operating platform 20 is foldable, which saves space during transportation and storage, and is easy to quickly transfer and deploy between different construction sites. This design usually involves detachable connectors and hinges, allowing the platform to be folded into a smaller volume when not in use. In the unfolded state, the operating platform 20 provides a spacious and stable working area for multiple workers to carry out construction work at the same time. The surface of the platform may be covered with non-slip material to ensure that workers can walk safely in wet or greasy environments.

[0063] The bottom of the hanging basket platform 23 is designed with adjustable support feet, which can be adjusted according to the slope of the bridge deck to ensure that the platform always remains level. This design is particularly important for construction on uneven or sloping bridge decks, because it can prevent the platform from sliding or tilting, thereby ensuring the safety of workers.

[0064] The support legs may have a threaded or hydraulic adjustment mechanism, allowing workers to quickly adjust the height of the platform according to actual needs. In addition, the bottom of the support legs may be equipped with anti-skid pads or suction cups to increase friction with the bridge deck and prevent the platform from moving during construction.

[0065] In order to further improve the stability of the operating platform 20, guardrails and safety nets may be added around the hanging basket platform 23. These protective measures can not only prevent the falling of tools and materials, but also provide a safe working environment for workers and reduce the risks of high-altitude operations. The structure of the platform may use high-strength steel or aluminum alloy to ensure stability and durability when carrying heavy equipment and multiple workers.

[0066] The operating platform 20 may be equipped with wheels or rollers so that the platform can be easily moved on the bridge deck without the need for additional lifting equipment. These wheels may have locking mechanisms to secure the platform in place once it is positioned. In some designs, the operating platform 20 may also be integrated with an electric or manual propulsion system so that the platform can be moved along the length of the bridge, thereby reducing the labor intensity of workers when moving the equipment.

[0067] The ladder 30 adopts a modular design, and the various components such as the steps, handrails and support structure can be quickly disassembled and assembled. This design allows the ladder to be disassembled when not in use, reducing the occupied space and facilitating storage and transportation. At the same time, the modular design also facilitates the rapid replacement of partially damaged parts of the ladder, reducing maintenance time and cost.

[0068] The ladder's stepped structure uses anti-skid materials, such as aluminum alloy or steel with anti-skid texture, to improve the safety of construction workers when going up and down. These materials not only have excellent anti-skid properties, but are also wear-resistant and corrosion-resistant, making them suitable for various harsh construction environments.

[0069] The arc structure of the ladder 30 is designed as an arch, similar to the principle of an arch bridge, which can evenly disperse gravity and enhance the stability of the ladder. In addition, the bottom of the ladder is designed with adjustable support feet, which can be adjusted according to the slope of the bridge deck to ensure that the ladder always remains horizontal and prevents sliding or tilting during construction.

[0070] In order to further ensure the safety of the construction workers, the ladder 30 may also be equipped with a safety rope or lifeline system, and the construction workers can buckle their safety belts on the ladder to prevent accidents. At the same time, guardrails or handrails may be installed on both sides of the ladder to provide additional support and protection for the construction workers.

[0071] The middle position of the ladder 30 is provided with multiple steps, which is not only convenient for climbing, but also helps to reduce the fatigue of the construction workers. The spacing design of the step sticks conforms to the principle of ergonomics, ensures comfortable step height and step depth, and reduces the fatigue of the workers when climbing.

[0072] The corresponding positions at the bottom of the ladder 30 are respectively provided with fixing ears, which are fixed to the ground by inserting fixing rods or using bolts to enhance the stability of the ladder. This fixing method is simple and effective, can be quickly installed and disassembled, and is suitable for different construction sites.

[0073] The pulley assembly 40 is provided with a central control mechanism, which allows the construction personnel to control the movement and locking of the pulley assembly 40 directly from the operating platform 20. This design greatly improves the convenience of operation and reduces the risk of construction personnel having to go down to the ground to operate the pulley when working at height. The central control mechanism may include an electric or pneumatic system, and the construction personnel can easily control the movement and locking status of the pulley assembly through the control panel or remote control on the operating platform. This system can respond quickly to ensure that the construction trolley can be quickly moved or fixed in place when needed.

[0074] The material of the universal wheel set 41 is upgraded to wear-resistant materials, such as polyurethane or nylon, which are known for their high strength, wear resistance and corrosion resistance. Such material selection improves the durability of the wheel set and adapts to different ground conditions, such as rough concrete surfaces or gravel roads. The use of wear-resistant materials not only enhances the durability of the wheel set, but also reduces maintenance costs and replacement frequency, thereby improving construction efficiency and economy. In addition, these materials generally have good rolling properties, which can reduce friction and resistance when moving the construction trolley.

[0075] In order to ensure that the construction trolley has sufficient stability after positioning, the pulley assembly 40 is equipped with a reliable locking mechanism. This locking mechanism can be manual, such as a knob or wrench operation, or automatic, such as a hydraulic or pneumatic locking system. The design of the locking mechanism ensures that stable support can be provided on any terrain, preventing the construction trolley from sliding or moving during construction, thereby ensuring the safety of construction personnel.

[0076] The universal wheel set 41 is designed with ground adaptability in mind and can provide stable mobility on uneven ground. The wheel set may be equipped with a pressure adjustment system, allowing construction personnel to adjust the contact pressure between the wheel and the ground according to ground conditions to ensure optimal grip and stability.

[0077] The safety assembly 50 adds an emergency stop mechanism that allows construction personnel to quickly stop the movement of the operating platform 20 when they identify any potential danger. This mechanism is critical to preventing accidents and protecting the safety of workers. The emergency stop mechanism may include a conspicuous red emergency stop button located in an easily accessible position on the operating platform 20. When the button is pressed, it will immediately cut off the power source to the operating platform, stopping all movement and construction work until the problem is resolved and confirmed to be safe, and then the equipment can be restarted.

[0078] The pulling rope of the second rivet member 52 is made of high-strength material, such as nylon or polyester rope, which are known for their excellent strength and wear resistance. This pulling rope can withstand high loads and reduce the risk of breaking under high tension. One end of the pulling rope is fixed to the hanging basket platform 23, and the other end is fixed to an anchor point on the ground, such as a concrete anchor or a steel pile. This configuration provides additional stability to prevent the hanging basket platform from moving under wind load or accidental impact. In order to increase the fixing strength of the pulling rope, a multiple pulling system may also be used to disperse the force by increasing the number of pulling points, thereby improving overall stability and safety.

[0079] The safety assembly 50 may also include other safety features, such as a fall prevention system, a safety belt attachment point, and a safety net to ensure the safety of construction workers in different situations. In some designs, the safety assembly 50 may also integrate a monitoring system for real-time monitoring of the tension of the traction rope and the position of the hanging basket platform to ensure that timely measures can be taken in any abnormal situation.

[0080] The electric adjustment mechanism of the center of gravity moving member 13 includes an electric actuator, which can be a servo motor or a stepper motor, which automatically adjusts the center of gravity position by receiving a control signal from the operating platform or a remote control command. This electric adjustment method not only improves the adjustment speed, but also reduces the labor intensity of manual adjustment.

[0081] The construction workers can operate through the control panel on the operating platform or the handheld remote control. The control panel has clear buttons and a display screen to show the current center of gravity position and adjustment status. The remote control provides greater operating freedom, allowing construction workers to adjust at any position on the operating platform.

[0082] The design of the electric adjustment mechanism focuses on adjustment accuracy and response speed to ensure that the frame structure can quickly adjust to the optimal center of gravity position under different construction loads. Electric actuators are usually equipped with precision reducers and position feedback devices such as encoders to achieve precise position control.

[0083] The electric adjustment mechanism also includes various safety features, such as overload protection, limit switches and fault diagnosis systems, to ensure safety and reliability during the adjustment process. These features can prevent unexpected situations caused by operator errors or mechanical failures.

[0084] In some designs, the electric adjustment mechanism may be integrated with intelligent control algorithms, such as fuzzy logic or adaptive control, which can automatically adjust the center of gravity position according to load changes to optimize the stability and balance of the frame structure.

[0085] The design of the electric adjustment mechanism also takes energy efficiency into consideration. Electric actuators usually adopt high-efficiency motors and energy-saving designs to reduce energy consumption and improve the economic benefits of the construction trolley.

[0086] The connecting member 22 adopts a quick release mechanism so that the hanging basket platform 23 can be quickly separated from the moving member 21. This mechanism usually includes a locking device, such as a quick release pin or a ball lock pin, which can quickly lock and release the hanging basket platform.

[0087] The quick release mechanism allows construction workers to adjust or change the position of the hanging basket platform 23 through simple operations on the operating platform 20 without complicated disassembly processes. This not only improves work efficiency, but also reduces the time and risk of construction workers working at height.

[0088] Despite the quick release mechanism, the connector 22 still maintains sufficient structural strength and safety. It may be made of high-strength materials, such as alloy steel or aviation aluminum alloy, to ensure reliability and durability when bearing heavy loads.

[0089] Quick release pins have a variety of handle or head styles, such as T-handle, loop handle, L-handle and button handle to accommodate different operating needs and space restrictions. These handle designs allow construction workers to operate the quick release pin quickly and easily.

[0090] The applications of quick release mechanisms are very wide. They are not only suitable for hanging basket platforms in bridge construction, but also can be used in other occasions where rapid adjustment or replacement of hardware is required, such as machinery, electronics and vehicles.

[0091] The design of the quick release pin takes into account the simplicity of maintenance and replacement. When the hanging basket platform 23 needs to be maintained or replaced, the construction personnel can quickly release the locking device, reducing maintenance time and labor intensity.

[0092] Through the above improvements, the mobile bridge guardrail construction trolley of the second embodiment provides higher adaptability, operational convenience and safety, and is suitable for various bridge guardrail construction environments.

[0093] Specifically, the principle of the present invention is:

[0094] The frame structure 10 adopts a gate-shaped design, which provides good stability. The combination of the main support frame 11 and the auxiliary support frame 12 forms a solid support system that can withstand the load generated during the construction process. The right-angled isosceles triangle structure between the vertical rods and the diagonal rods enhances the overall compression resistance and ensures the safety of the construction trolley during high-altitude operations.

[0095] The design of the center of gravity moving member 13 allows the center of gravity of the construction trolley to be adjusted according to actual needs. The gravity plate 131 moves on the track 133 through the rotating shaft 132, which can effectively balance the center of gravity position of the frame structure 10 and prevent tilting or instability caused by the center of gravity shift. This mechanism can ensure the safety of workers on the operating platform 20.

[0096] The sliding connection design of the operating platform 20 enables workers to easily move to different positions during the construction process. The driving wheel 211 and the return wheel 212 of the moving member 21 are driven by the motor 213 to achieve horizontal movement of the hanging basket platform 23. This not only improves the construction efficiency, but also reduces the frequent movement of workers on and off the platform, reducing safety risks.

[0097] The design of the safety component 50 ensures the safety of the construction workers. The combination of the first hanging member 51 and the second rivet member 52 enhances the stability of the operating platform 20. The second rivet member 52 is fixedly connected to the ground to further prevent accidental movement that may occur during the construction process, thereby ensuring the safety of workers when working at height.

[0098] The design of the universal wheel set 41 and the brake member 42 of the pulley assembly 40 enables the construction trolley to move flexibly in different directions. At the same time, the brake member 42 can lock the wheels during construction to prevent the trolley from accidentally sliding. This allows the construction trolley to quickly adjust its position when it needs to move, while maintaining stability during construction.

[0099] The arched structure and multi-step design of the ladder 30 enhance its stability and safety. One end of the ladder is hinged to the hanging basket platform 23, and the other end is fixed to the ground, which is convenient for workers to go up and down the operating platform. The design of the fixing ears and the fixing rod further enhances the supporting force of the ladder and ensures the safety of workers when climbing.

[0100] The various components of the present invention are coordinated with each other through the connection methods such as hinged seats to form an overall system. Whether it is the stability of the frame structure, the flexibility of the operating platform, or the protection of the safety components, they all cooperate with each other to ensure the smooth progress of the construction process.

[0101] In summary, the mobile bridge guardrail construction trolley of the present invention provides a safe, stable and efficient construction platform through scientific structural design and functional components, which adapts to the special needs of bridge construction.

Claims

1. A mobile bridge guardrail construction trolley, characterized in that: The invention comprises a frame structure (10), an operating platform (20), a ladder (30), a pulley assembly (40) and a safety assembly (50), wherein the frame structure (10) is a gate-shaped structure, and the operating platform (20) is slidably connected to the middle position of the frame structure (10) to provide a safe construction space for workers; the ladder (30) is arranged between the frame structure (10) and the operating platform (20), one end of the ladder (30) is rotatably connected to the inside of the operating platform (20), and the other end is hung on the frame structure (10) to facilitate workers to get on and off the operating platform; the pulley assemblies (40) are arranged at the bottom of both sides of the frame structure (10), and the pulley assemblies (40) are used to drive the construction trolley to move; the safety assembly (50) is arranged on the construction trolley, and the safety assembly (50) is used to ensure the safety of construction personnel; The safety component (50) comprises a first hanging member (51) and a second rivet member (52); the first hanging member (51) is fixed between the frame structure (10) and the operating platform (20) to ensure the stability of the installation of the operating platform (20); one end of the second rivet member (52) is fixedly connected to both sides of the operating platform (20), and the other end is fixedly connected to the ground to further ensure the safety of the construction process.

2. A mobile bridge guardrail construction trolley according to claim 1, characterized in that: The frame structure (10) comprises a main support frame (11), an auxiliary support frame (12) and a center of gravity moving member (13), wherein the main support frame (11) comprises two vertical bars and two horizontal bars fixed between the two vertical bars, wherein the two horizontal bars are respectively a first horizontal bar and a second horizontal bar from top to bottom; the auxiliary support frame (12) comprises a plurality of first oblique bars, wherein the first oblique bars are respectively fixedly connected to two sides of the vertical bars, and a right-angled isosceles triangle structure is formed between the vertical bars, the first oblique bars and the ground; the right-angled vertices of the right-angled isosceles triangle structure are perpendicular to the first oblique bars to form a second oblique bar, and the second oblique bar is fixedly connected to the first oblique bar; a plurality of screws are fixed at the positions where the vertical bars and the first oblique bars contact the ground, wherein the length of the screws is 1 / 3 of the length of the vertical bars, and are used to fix the frame structure (10) at the construction position; The center of gravity moving member (13) is arranged at the top of the first crossbar, and the center of gravity moving member (13) is used to balance the center of gravity position of the frame structure (10); The vertical rod, the first cross rod, the second cross rod, the first diagonal rod and the second diagonal rod are all connected and fixed via a hinge seat.

3. A mobile bridge guardrail construction trolley according to claim 2, characterized in that: The center of gravity moving member (13) comprises a gravity disk (131), a rotating shaft (132) and a track (133); the track (133) is arranged at the top of the first cross bar; the gravity disk (131) is arranged in the track (133) via the rotating shaft (132); a through hole is provided at a non-central position of the gravity disk (131); the rotating shaft (132) is an I-shaped structure, and passes through the through hole on the gravity disk (131) to position the gravity disk (131); and scale lines are provided at corresponding positions of the first cross bar and the track (133).

4. A mobile bridge guardrail construction trolley according to claim 3, characterized in that: The operating platform (20) comprises a moving member (21), a connecting member (22) and a hanging basket platform (23); the hanging basket platform (23) is fixed to the moving member (21) via the connecting member (22); the moving member (21) is fixed to the second cross bar and is used to drive the hanging basket platform (23) to move horizontally; the moving member (21) comprises a driving wheel (211), a return wheel (212) and a motor (213); the driving wheel (211) and the return wheel (212) are respectively fixed to the top position of the second cross bar and are symmetrically arranged about the center point; and the driving wheel (211) 211), the return wheel (212) and the second cross bar are connected via a rotating shaft, and a bracket is arranged at a position corresponding to the bottom of the second cross bar and the driving wheel (211), the motor (213) is fixed on the bracket, and the output shaft of the motor (213) is fixedly connected to the driving wheel (211) for driving the driving wheel (211) to rotate; the driving wheel (211) and the return wheel (212) are both provided with grooves, and the interior of the grooves is connected with cables, and the hanging basket platform (23) is fixed on the cables for driving the hanging basket platform (23) to move horizontally.

5. The mobile bridge guardrail construction trolley according to claim 4 is characterized in that: The connecting member (22) comprises a friction clamp (221) and the arc rod (222); the friction clamp (221) fully covers and clamps the cable, and a friction layer is provided at a position in contact with the cable, so as to ensure the stability of the connection between the friction clamp (221) and the cable; the arc rod (222) is fixed to the bottom of the friction clamp (221), and the other end is fixedly connected to the top of the hanging basket platform (23); the arc rod (222) is an arched parabolic structure, so as to reduce wind resistance; The hanging basket platform (23) is a square basket structure, and its side wall is arranged in an arc shape that is concave inward, so as to facilitate the construction of the bridge guardrail.

6. The mobile bridge guardrail construction trolley according to claim 5, characterized in that: The cable passes through a tensioning member at the center of the second crossbar. The tensioning member is a C-shaped structure and is used to ensure the moving direction of the hanging basket platform (23).

7. The mobile bridge guardrail construction trolley according to claim 6, characterized in that: The ladder (30) is arranged at both sides of the hanging basket platform (23), one end of which is connected to the top edge of the hanging basket platform (23) through a hinge shaft, and the other end is fixed to the ground protrusion by bending, so as to facilitate construction workers to enter the hanging basket platform (23); The arc-shaped structure of the ladder (30) is arranged in an arch shape to enhance its stability; A plurality of steps are arranged in the middle position for facilitating climbing; fixing ears are arranged at corresponding positions at the bottom of the ladder (30), and fixing rods are inserted between the fixing ears to further support and stabilize the ladder (30).

8. The mobile bridge guardrail construction trolley according to claim 7, characterized in that: The pulley assembly (40) comprises a universal wheel group (41) and a brake member (42). The universal wheel groups (41) are respectively arranged at the bottom of the vertical rod, and each group of the universal wheel groups (41) comprises four universal wheels, which are respectively fixed to the bottom of the vertical rod through a fixing platform. The brake members (42) are arranged at positions around the universal wheel group (41), and the brake members (42) are used to limit the movement of the universal wheel group (41).

9. The mobile bridge guardrail construction trolley according to claim 8, characterized in that: The first hanging member (51) is a hook rope, the bottom of which is fixed to the four corners of the hanging basket platform (23), and the top of which is fixed to the first crossbar via a hook.

10. A mobile bridge guardrail construction trolley according to claim 9, characterized in that: The second rivet member (52) comprises a rivet and a pulling rope, one end of the pulling rope is fixed to the hanging basket platform (23), and the other end is fixed to the rivet, and the rivet is nailed into the ground at an angle of 45° to further reinforce the hanging basket platform (23).

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