Rail-mounted overhead working trolley

Abstract

The utility model discloses a rail-mounted aerial work trolley which comprises a supporting frame, two sets of walking wheels, a ladder stand, an aerial work platform and four retractable positioning inclined struts, the two sets of walking wheels are connected to the bottom end of the supporting frame and used for walking on a rail, and the ladder stand is vertically arranged along the supporting frame and used for supporting the aerial work platform. The aerial work platform is fixedly connected to the top end of the supporting frame, the bottom end of the aerial work platform is provided with an inlet and outlet close to the top end of the crawling ladder, the four retractable positioning inclined struts are connected to the bottoms of four stand columns of the supporting frame respectively, and when the rail-mounted aerial work trolley walks, the four retractable positioning inclined struts are vertically attached to the stand columns to be connected in a locked mode; and the supporting frame is supported on the ground to support and reinforce the supporting frame. The high-altitude operation platform can meet the requirement for high-altitude operation on the common ground, can also walk and operate on the railway steel rails within the railway rail-mounted area range, is stable in structure, and is convenient to use in various construction environments.

Description

Technical Field

[0001] This utility model relates to the field of high-altitude operation technology, specifically a rail-mounted high-altitude operation trolley. Background Technology

[0002] High-altitude operations in construction projects often utilize aerial work platforms, which are convenient to move and safe and reliable. However, due to limitations in the working environment, such as when aerial work platforms cannot operate normally within railway track areas, temporary working platforms are typically erected using steel pipe supports. But these temporary supports cannot be moved, a large amount of materials are required when there are multiple work areas, the on-site installation and dismantling work is extensive, and each use requires re-inspection and verification, resulting in low construction efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a rail-mounted aerial work platform that can not only meet the requirements of high-altitude operations on general ground, but also travel and operate on railway rails within the railway track area, and has a stable structure that is easy to use in various construction environments.

[0004] The technical solution of this utility model is as follows:

[0005] A rail-mounted aerial work platform includes a support frame, two sets of wheels, a ladder, an aerial work platform, and four retractable positioning braces. The two sets of wheels are connected to the bottom of the support frame for traveling on the track. The ladder is vertically installed along the support frame. The aerial work platform is fixedly connected to the top of the support frame and has an entrance / exit near the top of the ladder at its bottom. The four retractable positioning braces are respectively connected to the bottom of the four columns of the support frame.

[0006] Each retractable positioning brace includes an upper diagonal brace and a lower diagonal brace. The upper diagonal brace is longer than the lower diagonal brace. An upper clamp is hinged to the top of the upper diagonal brace, and a lower clamp and a connecting clamp are hinged to the top and bottom of the lower diagonal brace, respectively. The upper and lower clamps are both clamped to the same column of the support frame, with the upper clamp located directly above the lower clamp. The connecting clamp is clamped to the bottom of the upper diagonal brace. When the rail-mounted aerial work platform is positioned, the bottom of the upper diagonal brace is supported on the ground.

[0007] The support frame includes four uprights, multiple horizontal beams, and multiple horizontal longitudinal beams. The horizontal beams are divided into two groups, with each group of horizontal beams evenly distributed from the bottom to the top of the support frame. The two groups of horizontal beams have the same number of beams and completely overlap. The two groups of horizontal beams are horizontally connected between two adjacent uprights. Each horizontal longitudinal beam has C-shaped buckles at both ends. The two ends of each horizontal longitudinal beam are connected to the same-phase ends of two horizontal beams at the same horizontal height via C-shaped buckles. A horizontal longitudinal beam is connected to each of the two adjacent ends of two horizontal beams at the same horizontal height. The ladder is fixedly connected to one of the groups of horizontal beams.

[0008] The support frame is connected to multiple diagonal bracing rods. The top end of each diagonal bracing rod is connected to one of the horizontal beams in one set of horizontal beams, and the bottom end of each diagonal bracing rod is connected to one of the horizontal beams in another set of horizontal beams.

[0009] The aerial work platform includes multiple base plates and railings. The base plates are arranged side by side. The bottom of the railings is set along the outer ring of the multiple side-by-side base plates and connected to the top of four columns and the top horizontal beam. Each base plate has an inverted U-shaped clamp at each of its four corners. Each base plate is clamped between the two top horizontal beams by four inverted U-shaped clamps.

[0010] The support frame is connected to multiple temporary work platforms at different horizontal heights. Each temporary work platform has an inverted U-shaped clamp at each of its four corners. Each temporary work platform is clamped between two horizontal beams at the same horizontal height by the four inverted U-shaped clamps.

[0011] In the two sets of traveling wheels, each traveling wheel frame is connected to a rail clamp. The rail clamp includes a bracket, a horizontal rotating rod, a horizontal connecting rod, a horizontal limiting rod, and two L-shaped limiting clamps. The bracket includes an inner side plate, a left side plate, a right side plate, and a top plate. The bottom of the inner side plate is fixedly connected to the traveling wheel frame, and the inner side plate is fixedly connected between the left side plate and the right side plate. The top plate is fixedly connected to the top of the inner side plate, the left side plate, and the right side plate. The ends of the horizontal portions of the two L-shaped limiting clamps are opposite each other, and the vertical portions are parallel to each other. The horizontal rotating rod and the horizontal connecting rod both pass horizontally through the two L-shaped limiting clamps. The vertical part of the positioning clamp is connected to the horizontal rotating rod, which is adjacent to the end of the vertical part of the L-shaped limiting clamp. The two ends of the horizontal rotating rod are fixedly connected to the left and right plates of the bracket. The horizontal limiting rod passes horizontally through the left and right plates and is located above the horizontal rotating rod. The left and right plates are provided with positioning grooves, and the openings of the positioning grooves face away from the inner plate. When the horizontal connecting rod drives the two L-shaped limiting clamps to rotate upward between the left and right plates, the two ends of the horizontal connecting rod rotate into the positioning grooves, and the vertical part of the two L-shaped limiting clamps is limited between the horizontal limiting rod and the inner plate.

[0012] The horizontal length of the aerial work platform is greater than the horizontal length of the support frame, so that the two ends of the aerial work platform extend to the outside of the support frame. The four corners at the bottom of the aerial work platform are connected with platform reinforcement diagonal braces. The top of each platform reinforcement diagonal brace is fixedly connected to the corner at the bottom of the aerial work platform, and the bottom is fixedly connected to the column of the support frame.

[0013] The support frame is equipped with photoelectric alarms at both the front and rear ends along the walking direction.

[0014] The support frame has a cross limit switch on its front column. The vertical part of the cross limit switch is parallel to the column, and the horizontal part of the cross limit switch extends along the axial direction of the railway rail and partially extends to the front of the support frame. The traveling wheels are electric traveling wheels, and the motor of the electric traveling wheels and the cross limit switch are respectively connected to the motor controller.

[0015] Advantages of this utility model:

[0016] (1) The present invention connects two sets of walking wheels at the bottom of the support frame, which facilitates walking and moving on the double rails of the railway, thereby positioning at different construction sites without the need to set up temporary work platforms, thus reducing the workload.

[0017] (2) This utility model is equipped with a retractable positioning diagonal brace. When moving, it can be retracted and suspended in the air and vertically attached to the column for locking connection. After moving and positioning, it can be opened and supported on the ground to support and reinforce the support frame, thereby improving the stability of the support frame in windy conditions.

[0018] (3) The horizontal longitudinal beam of the support frame of this utility model is fastened between two horizontal beams by C-type buckles, and the multiple base plates of the aerial work platform are also fastened between two horizontal beams by inverted U-shaped clamps, which facilitates disassembly and transportation, and the installation and connection are simple and quick.

[0019] (4) The support frame of this utility model is connected with multiple diagonal bracing rods, and the four corners at the bottom of the high-altitude work platform are all connected with platform reinforcement diagonal bracing, which further improves the stability of the structure of this utility model, thereby improving the safety of high-altitude work.

[0020] (5) Each of the walking wheels of this utility model is connected to a rail clamp. When the rail clamp is loose, the walking wheel can walk normally on the railway rail. When the rail clamp is tight, the rail clamp positioning can be achieved, which improves the stability of the positioning support.

[0021] (6) The front and rear ends of the support frame of this utility model are equipped with photoelectric alarms. When the photoelectric sensor of the photoelectric alarm detects an approaching object in front or behind, it can issue an alarm to avoid collision.

[0022] (7) This utility model is equipped with a temporary working platform, which can adapt to the working needs of different construction heights, and is easy and quick to install and dismantle.

[0023] (8) The present invention has a cross limit switch at the front end of the support frame. When the cross limit switch collides with the obstacle at the front end, the cross limit switch rotates 90 degrees and sends the rotation signal to the motor controller of the electric walking wheel. The motor controller then controls the electric walking wheel to stop walking, thereby reducing the safety risk of driving in the track area. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present invention.

[0025] Figure 2 yes Figure 1 Enlarged view of part A in the image.

[0026] Figure 3 yes Figure 1 Enlarged view of part B in the image.

[0027] Figure 4 yes Figure 1 Enlarged view of section C in the image.

[0028] Figure 5 yes Figure 1 Enlarged view of part D in the image.

[0029] Figure 6 yes Figure 1 Enlarged view of part E in the image.

[0030] Figure 7 This is a front view of the rail clamp in the walking state of this utility model.

[0031] Figure 8 This is a front view of the rail clamp in the positioning and locking state of this utility model.

[0032] Attached reference numerals: 1-Column, 2-Horizontal beam, 3-Horizontal longitudinal beam, 31-C-type buckle, 4-Diagonal brace reinforcement rod, 5-Ladder, 6-Photoelectric alarm, 7-Walking wheel, 8-Rail clamp, 81-Bracket, 82-Horizontal rotating rod, 83-Horizontal connecting rod, 84-Horizontal limit rod, 85-L-type limit clamp, 86-Positioning groove, 9-Base plate, 10-Fence, 11-Inverted U-shaped clamp, 12-Platform reinforcement diagonal brace, 13-Upper diagonal brace, 14-Lower diagonal brace, 15-Upper clamp, 16-Lower clamp, 17-Connecting clamp, 18-Temporary working platform, 19-Cross limit switch, 20-Railway rail. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] See Figures 1-4A rail-mounted aerial work platform includes a support frame, a ladder 5, a photoelectric alarm 6, two sets of electric wheels 7, an aerial work platform, four retractable positioning braces, a temporary work platform 18, and a cross limit switch 19.

[0035] The support frame includes four uprights 1, multiple horizontal beams 2, and multiple horizontal longitudinal beams 3. The horizontal beams 2 are divided into two groups, with each group of horizontal beams 2 evenly distributed from the bottom to the top of the support frame. The two groups of horizontal beams 2 have the same number of beams and completely overlap. The two groups of horizontal beams 2 are horizontally connected between two adjacent uprights 1. Each horizontal longitudinal beam 3 has C-shaped clips 31 at both ends, and the two ends of each horizontal longitudinal beam 3 are engaged with the same-phase ends of two horizontal beams 2 at the same horizontal height through the C-shaped clips 31. Above, and at the same horizontal height, two horizontal beams 2 are connected to a horizontal longitudinal beam 3 at their adjacent ends. The support frame is also connected to multiple diagonal bracing rods 4. The top of each diagonal bracing rod 4 is connected to one of the horizontal beams 2 of one set of horizontal beams, and the bottom of each diagonal bracing rod 4 is connected to one of the horizontal beams 2 of another set of horizontal beams. The ladder 5 is vertically set and fixedly connected to one of the horizontal beams 2. Photoelectric alarms 6 are installed at the front and rear ends of the support frame along the walking direction.

[0036] See Figure 5 , Figure 7 and Figure 8 Two sets of traveling wheels are used to move on the track. Each set of traveling wheels includes two electric traveling wheels 7. The four electric traveling wheels 7 are connected to the four corners at the bottom of the support frame. Each electric traveling wheel 7 has a rail clamp 8 connected to its wheel frame. The rail clamp 8 includes a bracket 81, a horizontal rotating rod 82, a horizontal connecting rod 83, a horizontal limiting rod 84, and two L-shaped limiting clamps 85. The bracket 81 includes an inner side plate, a left side plate, a right side plate, and a top plate. The bottom of the inner side plate is fixedly connected to the wheel frame of the electric traveling wheel 7. The inner side plate is fixedly connected between the left side plate and the right side plate. The top plate is fixedly connected to the top of the inner side plate, the left side plate, and the right side plate. The ends of the horizontal parts of the two L-shaped limiting clamps 85 are opposite each other, and the vertical parts are parallel to each other. Both the horizontal rotating rod 82 and the horizontal connecting rod 83 pass horizontally through the vertical parts of the two L-shaped limiting clamps 85, and the horizontal rotating rod 82 is adjacent to the end of the vertical part of the L-shaped limiting clamp 85. The two ends of the horizontal rotating rod 82 are fixedly connected to the left and right plates of the bracket 81. The horizontal limiting rod 84 passes horizontally through the left and right plates and is located above the horizontal rotating rod 82. The left and right plates are provided with positioning grooves 86, and the openings of the positioning grooves 86 face away from the inner plate. When the two L-shaped limiting clamps 85 rotate upward to between the left and right plates, the two ends of the horizontal connecting rod 83 rotate into the positioning grooves 86. The vertical parts of the two L-shaped limiting clamps 85 are limited between the horizontal limiting rod 84 and the inner plate of the bracket 81.

[0037] The aerial work platform includes multiple base plates 9 and railings 10. The multiple base plates 9 are arranged side by side. The bottom end of the railings 10 is arranged along the outer ring of the multiple side by side base plates and connected to the top of four columns 1 and the top horizontal beam 2. Each base plate 9 has an inverted U-shaped clamping plate 11 at each of its four corners. Each base plate 9 is clamped between the two top horizontal beams 2 by the four inverted U-shaped clamping plates 11. One of the base plates 9 of the aerial work platform has an entrance and exit near the top of the ladder 5. The horizontal length of the aerial work platform is greater than the horizontal length of the support frame, so that the two ends of the aerial work platform extend to the outside of the support frame. Each of the four corners at the bottom of the aerial work platform is connected to a platform reinforcing brace 12. The top end of each platform reinforcing brace 12 is fixedly connected to the corner at the bottom of the aerial work platform, and the bottom end is fixedly connected to the column 1 of the support frame.

[0038] Four retractable positioning braces are respectively connected to the bottom of the four columns 1 of the support frame. Each retractable positioning brace includes an upper diagonal brace 13 and a lower diagonal brace 14. The length of the upper diagonal brace 13 is greater than the length of the lower diagonal brace 14. An upper clamp 15 is hinged to the top of the upper diagonal brace 13. A lower clamp 16 and a connecting clamp 17 are respectively hinged to the top and bottom of the lower diagonal brace 14. The upper clamp 15 and the lower clamp 16 are both clamped and connected to the same column 1 of the support frame, with the upper clamp 15 located directly above the lower clamp 16. The connecting clamp 17 is clamped and connected to the bottom of the upper diagonal brace 13. When the rail-mounted aerial work platform is positioned, the bottom of the upper diagonal brace 13 is supported on the ground.

[0039] Two temporary work platforms 18 located at different horizontal heights are connected to the support frame. Each temporary work platform 18 is equipped with an inverted U-shaped clamping plate 11 at each of its four corners. Each temporary work platform 18 is clamped between two horizontal beams 2 located at the same horizontal height by the four inverted U-shaped clamping plates 11.

[0040] See Figure 6 A cross limit switch 19 is installed on the column 1 at the front end of the support frame. The vertical part of the cross limit switch 19 is parallel to the column 1, and the horizontal part of the cross limit switch 19 extends along the axial direction of the railway rail 20 and extends to the front of the support frame. The motor of the electric walking wheel 7 is connected to the motor controller. The motor controller can be wirelessly connected to a handheld remote controller to achieve remote control. The motor controller is connected to the battery installed on the support frame to provide power. The cross limit switch 19 is connected to the motor controller and sends a signal to the motor controller.

[0041] When the rail-mounted aerial work platform moves, the upper clamp 15, lower clamp 16, and connecting clamp 17 of the retractable positioning diagonal brace can be loosened, allowing the upper diagonal brace 13 and lower diagonal brace 14 to overlap and be tightly against the corresponding column 1. Then, by tightening the upper clamp 15, lower clamp 16, and connecting clamp 17, the upper diagonal brace 13 and lower diagonal brace 14 are vertically attached to the column 1 and locked in place. At this time, the upper diagonal brace 13 and lower diagonal brace 14 are only in a suspended state, and the two sets of electric traveling wheels 7 can drive the rail-mounted aerial work platform to move. After the movement is completed and positioned, loosen the upper clamp 15, lower clamp 16, and connecting clamp 17, so that the bottom end of the upper diagonal brace 13 is supported on the ground, and the lower diagonal brace 14 supports and reinforces the upper diagonal brace 13, thereby supporting and reinforcing the four corners at the bottom of the support frame and improving the stability of the support frame in windy conditions. At the same time, remove the horizontal limiting rod 84 of the rail clamp 8 from the bracket 81, and the two L-shaped limiting clamps 85 rotate and move downward along the horizontal rotating rod 82. At this time, the horizontal ends of the two L-shaped limiting clamps 85 are closed. The distance between them is greater than the maximum width of the railway rail 20. When the two L-shaped limiting clamps 85 are flipped to the vertical position, the two L-shaped limiting clamps 85 are brought closer to each other along the horizontal rotating rod 82 and the horizontal connecting rod 83, so that the vertical part of the two L-shaped limiting clamps 85 is close to both sides of the railway rail 20, and the horizontal part of the two L-shaped limiting clamps 85 contacts and locks with the bottom of the railway rail 20. Finally, the two L-shaped limiting clamps 85 are locked and limited by the locking nut on the horizontal connecting rod 83, so that the rail clamp 18 is clamped and connected to the railway rail 20. When the electric walking wheel 7 needs to continue moving, loosen the locking nut on the horizontal connecting rod 83, and separate the two L-shaped limiting clamps 85 back to back again, so that the distance between the horizontal ends of the two L-shaped limiting clamps 85 is greater than the maximum width of the railway rail 20. Then rotate the two L-shaped limiting clamps 85 upward between the left and right plates, and reinsert the horizontal limiting rod 84 into the bracket, so that the vertical part of the two L-shaped limiting clamps 85 is limited between the horizontal limiting rod 84 and the inner plate of the bracket 81, preventing it from flipping downward.

[0042] When the rail-mounted aerial work platform moves along the railway rail 20, the cross limit switch 19 collides with the obstacle in front of it. The cross limit switch 19 rotates 90 degrees and sends the rotation signal to the motor controller of the electric walking wheel 7. The motor controller then controls the electric walking wheel 7 to stop moving, reducing the safety risk of the vehicle traveling in the rail area.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rail-mounted aerial platform, characterized by: It includes a support frame, two sets of wheels, a ladder, an aerial work platform, and four retractable positioning braces. The two sets of wheels are connected to the bottom of the support frame for traveling on the track. The ladder is set vertically along the support frame. The aerial work platform is fixedly connected to the top of the support frame and has an entrance and exit near the top of the ladder at the bottom. The four retractable positioning braces are respectively connected to the bottom of the four columns of the support frame. Each retractable positioning brace includes an upper diagonal brace and a lower diagonal brace. The upper diagonal brace is longer than the lower diagonal brace. An upper clamp is hinged to the top of the upper diagonal brace, and a lower clamp and a connecting clamp are hinged to the top and bottom of the lower diagonal brace, respectively. The upper and lower clamps are both clamped to the same column of the support frame, with the upper clamp located directly above the lower clamp. The connecting clamp is clamped to the bottom of the upper diagonal brace. When the rail-mounted aerial work platform is positioned, the bottom of the upper diagonal brace is supported on the ground.

2. The rail-mounted aerial platform of claim 1, wherein: The support frame includes four uprights, multiple horizontal beams, and multiple horizontal longitudinal beams. The horizontal beams are divided into two groups, with each group of horizontal beams evenly distributed from the bottom to the top of the support frame. The two groups of horizontal beams have the same number of beams and completely overlap. The two groups of horizontal beams are horizontally connected between two adjacent uprights. Each horizontal longitudinal beam has C-shaped buckles at both ends. The two ends of each horizontal longitudinal beam are connected to the same-phase ends of two horizontal beams at the same horizontal height via C-shaped buckles. A horizontal longitudinal beam is connected to each of the two adjacent ends of two horizontal beams at the same horizontal height. The ladder is fixedly connected to one of the groups of horizontal beams.

3. The rail-mounted aerial platform of claim 2, wherein: The support frame is connected to multiple diagonal bracing rods. The top end of each diagonal bracing rod is connected to one of the horizontal beams in one set of horizontal beams, and the bottom end of each diagonal bracing rod is connected to one of the horizontal beams in another set of horizontal beams.

4. The rail-mounted aerial work platform according to claim 2, characterized in that: The aerial work platform includes multiple base plates and railings. The base plates are arranged side by side. The bottom of the railings is set along the outer ring of the multiple side-by-side base plates and connected to the top of four columns and the top horizontal beam. Each base plate has an inverted U-shaped clamp at each of its four corners. Each base plate is clamped between the two top horizontal beams by four inverted U-shaped clamps.

5. A rail-mounted aerial work platform according to claim 2, characterized in that: The support frame is connected to multiple temporary work platforms at different horizontal heights. Each temporary work platform has an inverted U-shaped clamp at each of its four corners. Each temporary work platform is clamped between two horizontal beams at the same horizontal height by the four inverted U-shaped clamps.

6. The rail-mounted aerial work platform according to claim 1, characterized in that: In the two sets of traveling wheels, each traveling wheel frame is connected to a rail clamp. The rail clamp includes a bracket, a horizontal rotating rod, a horizontal connecting rod, a horizontal limiting rod, and two L-shaped limiting clamps. The bracket includes an inner side plate, a left side plate, a right side plate, and a top plate. The bottom of the inner side plate is fixedly connected to the traveling wheel frame, and the inner side plate is fixedly connected between the left side plate and the right side plate. The top plate is fixedly connected to the top of the inner side plate, the left side plate, and the right side plate. The ends of the horizontal portions of the two L-shaped limiting clamps are opposite each other, and the vertical portions are parallel to each other. The horizontal rotating rod and the horizontal connecting rod both pass horizontally through the two L-shaped limiting clamps. The vertical part of the positioning clamp is connected to the horizontal rotating rod, which is adjacent to the end of the vertical part of the L-shaped limiting clamp. The two ends of the horizontal rotating rod are fixedly connected to the left and right plates of the bracket. The horizontal limiting rod passes horizontally through the left and right plates and is located above the horizontal rotating rod. The left and right plates are provided with positioning grooves, and the openings of the positioning grooves face away from the inner plate. When the horizontal connecting rod drives the two L-shaped limiting clamps to rotate upward between the left and right plates, the two ends of the horizontal connecting rod rotate into the positioning grooves, and the vertical part of the two L-shaped limiting clamps is limited between the horizontal limiting rod and the inner plate.

7. A rail-mounted aerial work platform according to claim 1, characterized in that: The horizontal length of the aerial work platform is greater than the horizontal length of the support frame, so that the two ends of the aerial work platform extend to the outside of the support frame. The four corners at the bottom of the aerial work platform are connected with platform reinforcement diagonal braces. The top of each platform reinforcement diagonal brace is fixedly connected to the corner at the bottom of the aerial work platform, and the bottom is fixedly connected to the column of the support frame.

8. The rail-mounted aerial work platform according to claim 1, characterized in that: The support frame is equipped with photoelectric alarms at both the front and rear ends along the walking direction.

9. A rail-mounted aerial work platform according to claim 1, characterized in that: The support frame has a cross limit switch on its front column. The vertical part of the cross limit switch is parallel to the column, and the horizontal part of the cross limit switch extends along the axial direction of the railway rail and partially extends to the front of the support frame. The traveling wheels are electric traveling wheels, and the motor of the electric traveling wheels and the cross limit switch are respectively connected to the motor controller.

Images