WO2019140899A1

WO2019140899A1 - Bridge pillar construction operation platform

Info

Publication number: WO2019140899A1
Application number: PCT/CN2018/100919
Authority: WO
Inventors: 徐晓山
Original assignee: 徐晓山
Priority date: 2018-01-22
Filing date: 2018-08-17
Publication date: 2019-07-25
Also published as: CN108330826A; CN108330826B

Abstract

A bridge pillar construction operation platform, comprising a bottom plate (1). Universal wheels (2) are fixed at the lower side of the bottom plate (1), and the universal wheels (2) are provided with braking systems (3); guide posts (4) are provided on the upper side of the bottom plate (1) at the edges; a lifting rod (5) is provided on the upper side of the bottom plate (1) at the middle part; a middle plate (6) is disposed above the bottom plate (1); safety net hanging plates (7) are fixed to the middle plate (6), and the safety net hanging plates (7) are rotatably connected to safety nets (8); an ejection device (10) is disposed between the safety net hanging plates (7); pillars (11) are provided on the middle plate (6); cross columns (13) are fixed at the upper ends of the pillars (11); a worktable (15) is disposed on the pillars (11); ladders (16) are fixed to the middle plate (6); the worktable (15) is provided with protective plates (17); a ceiling (22) is provided at the upper ends of the protective plates (17); a storage box (18) is provided at the bottom of the worktable (15); a safety rope base (20) is disposed on the worktable (15). A rotating rod (36) is disposed in the safety rope base (20); the rotating rod (36) is connected with a linkage rope (30) and the rotating rod (36) is connected with a safety rope (40); the safety rope (40) is provided with a fixing lock (41). Problems of single structure and poor safeguard of the available bridge pillar construction operation platforms are solved, and high practicability is achieved.

Description

Bridge column construction operation platform

Technical field

The invention relates to the technical field of bridge construction, in particular to a platform construction platform for bridge columns.

Background technique

The safety problem is the primary problem that needs to be considered during the construction of the bridge. The construction of the bridge column is a high-altitude operation and the danger is high. To ensure the safety of the construction personnel, a special scaffold construction operation platform must be set up before the bridge column is poured, but due to the construction The short operation time of the construction operation platform, the inconvenience of moving the construction operation platform, and the need to spend a lot of manpower and material resources on the construction operation platform, which imposes a great burden on the construction cost. The general construction unit does not pour the construction of the column. A special construction operation platform is set up, but the construction personnel directly ride on the template to perform the work.

Although some bridge deck construction platforms have been adopted, the construction personnel are not guaranteed in terms of safety; often, various problems such as slippery slippage during construction will cause the construction personnel to fall down; In the bridge column construction operation platform, the safety of construction workers is mostly secured by safety rope or safety net. The structure is single and the safety is insufficient, which is prone to accidents.

Due to the above technical defects in the prior art, it is a technical problem to be solved by those skilled in the art. Therefore, a bridge column construction operation platform is particularly important.

technical problem

In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a bridge column construction operation platform, which effectively solves the problem that the existing bridge column construction operation platform has a single structure and insufficient safety guarantee.

Technical solution

The technical solution of the present invention is to include a bottom plate;

The lower end of the bottom plate is fixedly connected with four universal wheels, and the four universal wheels are respectively equipped with a brake system, and the upper end edge of the bottom plate is integrally connected or welded with four vertically arranged guide columns, and the upper end of the bottom plate is intermediate A lifting rod is connected, and the lifting rod is connected with a pneumatic driving device; a middle plate equal to its length is disposed directly above the bottom plate, the middle plate is placed at the upper end of the lifting rod, and four guiding columns penetrate the middle plate, so that the middle plate can be guided The column moves in accordance with the lifting and lowering of the lifting rod;

The middle plate end is fixed with two vertically disposed safety net hanging plates, and the two safety net hanging plate side walls are all rotatably connected with a safety net, and the two safety net hanging plates are provided with an ejection device in the middle. The ejecting device includes an L-shaped fixing plate, and the two ends of the fixing plate are integrally connected or welded to the two safety net hanging plates. The fixing plate bottom plate is integrally connected with two fixing seats, and the fixing seat is slidably connected with the orientation. The opposite striking rod is provided with a stopper integrally connected with the striking rod body outside, and a first spring is disposed on the outer side of the fixing rod, and the first spring is located at the fixing seat Between the block and the block, the fixed plate side plate is integrally connected with two rotating shafts, and the rotating shaft is rotatably connected with a pawl, and the pawl can catch the stopping block, and the first spring is in a compressed state. The upper end of the rotating shaft is provided with two first fixed pulleys, the first fixed pulley is fixedly connected with the L-shaped fixing plate, the pawl end is connected with a linking rope, and the other end of the connecting rope is connected with a rotating rod. The linkage rope passes between two first fixed pulleys The two first fixed pulleys to limit the displacement of the linkage about the rope, the first fixed pulley and rope is interlocked sliding fit;

The side of the mounting net plate is provided with a long groove corresponding to the safety net frame body, and the long groove can catch the upper frame of the safety net, and the long groove has a circular guiding hole in the middle, and the guiding hole The size and position are matched with the striking rod, and the striking rod can collide with the upper frame of the safety net through the guiding hole;

The vertical plate is disposed above the middle plate, and the vertical column is reinforced by a reinforcing rib, and the upper end of the vertical column is fixed with a horizontally disposed horizontal column; the vertical column and the horizontal column are fixed by a fixing device;

The upper end of the column is integrally connected or welded with a working platform having a length smaller than that of the bottom plate and the middle plate, and the intermediate plate is fixedly connected or welded with two inclined ladders, and the upper ends of the two ladders are respectively connected with the workbench The two ends are fixedly connected, and the working platform has no protective plates on both sides of the ladder;

The support plate is fixedly mounted with four support columns, and the upper end of the support column is fixedly connected with an inverted V-shaped ceiling;

The bottom of the workbench is provided with two storage boxes of different sizes, the storage box is provided with a cover, the cover is located on the surface of the workbench, and the upper end of the worktable is fixedly connected with a safety rope base;

The safety rope base is hollow inside, and the lower end of the safety rope base is fixedly connected with two cylindrical brackets placed in parallel, the brackets are rotatably connected with a rotating rod, and the two rotating rods are opposite to each other. An annular fixing block is arranged on both sides of the rotating rod, the annular fixing block is fixed on the bracket, and the rotating rod is positionally defined. The rotating rod is connected to the linking rope, and two pulley fixing columns are arranged in the middle of the two rotating rods. The two ends of the pulley fixing column are fixed on the inner side wall of the safety rope base, and the pulley fixing column is fixed with a second fixed pulley, and the linkage rope is slidably engaged with the second fixed pulley, and the rope is interlocked One end is connected to the rotating rod, the connecting rope slides over the second fixed pulley and the first fixed pulley, and the other end of the linked rope is connected with a pawl, and the rotating rod is fixedly connected with the inner wall of the safety rope base by a second spring, the rotation The shaft body is provided with a bolt hole, and the bolt rope hole is fixedly connected with a safety rope. The safety rope runs through the safety rope base, and the safety rope end portion is fixedly fixed with a fixed lock.

Preferably, the brake system comprises a U-shaped guide rail mounted around the universal wheel, and two sliding plates slidably connected to the U-shaped guide rail, the two sliding plates are mounted with a handle, and the U-shaped guide rail is opened. There is a rectangular chute, the handle is slidably engaged with the sliding groove, and the handle is pulled downward. The lower ends of the two sliding plates can touch the ground, and the lower end of the sliding plate is provided with a friction pad or a tapered cone.

Preferably, the four guiding columns penetrate the middle plate, the height of the guiding column is equal to the maximum height of the lifting rod, and the top of the guiding column is arranged in a boss shape.

Preferably, when the pawl is stuck to the block, the first spring is in an extremely compressed state, and the first spring has a great elastic force, and the first spring is in a compressed state, and the pawl is stuck in the block. The lower end surface of the pawl has a groove, the groove can catch the stopper, the groove is curved, and the lower end surface of the pawl contacts the first spring, so that the pawl cannot rotate in the initial state.

Preferably, the bottom of the safety rope base and the worktable are provided with circular holes corresponding to the positions, so that the linked rope can penetrate the bottom of the safety rope base and the worktable, and the linkage rope connects the rotating rod and the pawl.

Preferably, the safety net hanging plate and the safety net are connected by two traction ropes. In a normal state, the traction rope is located inside the long groove, and the safety net is a flexible net.

Preferably, the guiding column and the middle plate are sliding connections.

Preferably, the protective plate end is disposed to protrude inward.

Preferably, the storage box is rotatably connected to the cover, and the cover is integrally connected or welded with a handle.

Preferably, the bottom of the safety net hanging plate is integrally connected or welded to the middle plate, and the safety net hanging plate is welded and fixed to the vertical column.

Beneficial effect

The invention has the advantages of ingenious structure and multiple safety protections, which greatly enhances the safety guarantee, greatly improves the safety of the construction personnel, and the device can be displaced or fixed as needed, and the working height can be adjusted as needed. Easy to use and practical.

DRAWINGS

Figure 1 is a perspective view of a normal state of the present invention.

Figure 2 is a schematic perspective view of the present invention in the event of an accident.

Figure 3 is a schematic view of the cooperation of the brake system of the present invention.

Figure 4 is a schematic view of the cooperation of the ejection device of the present invention.

Figure 5 is a schematic view of the interior of the safety cord base of the present invention.

Figure 6 is a schematic view of the workbench of the present invention.

Figure 7 is a schematic view of the fixture of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

The foregoing and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of embodiments. The structural contents mentioned in the following embodiments are all based on the drawings of the specification.

Various exemplary embodiments of the present invention will be described below with reference to the drawings.

The first embodiment of the present invention is a bridge column construction operation platform, which comprises a rectangular bottom plate 1. In order to make the construction operation platform more convenient, the lower end of the bottom plate 1 is fixedly connected with four universal wheels 2 by bolts, in order to make the The device is more stable during operation. The four universal wheels 2 are equipped with a brake system 3, and the sliding plate 3-2 of the braking system 3 can be touched to the ground to be fixed when the sliding plate 3-2 is lowered, and the friction pad or the tip of the lower end of the sliding plate 3-2 is installed. The block will strengthen the braking strength, maintain the stability of the device, so that the universal wheel 2 stops displacement, and the construction operation platform is fixed; the upper end edge of the bottom plate 1 is integrally connected or welded with four vertically disposed guiding columns 4, and the guiding column 4 is The function of guiding and supporting is that a lifting rod 5 is connected in the middle of the upper end of the bottom plate 1, and a driving device is connected to the lifting rod 5 to provide driving force for the lifting rod 5. The lifting rod 5 can be a pneumatic telescopic rod, and the driving device can be a pneumatic pump, a lifting rod The lifting switch of 5 can be fixed on the worktable 15, or can be fixed on the bottom plate 1 below, and the construction personnel themselves or the below-cooperating construction personnel can adjust the height according to the needs, so that The utility model is greatly enhanced; the middle plate 6 of the same length is disposed directly above the bottom plate 1, the middle plate 6 is fixed above the lifting rod 5, the guiding column 4 penetrates the middle plate 6, and the middle plate 6 can follow on the guiding column 4. Lifting and moving of the lifting rod 5;

The middle plate 6 is integrally connected or welded with two vertically disposed safety net hanging plates 7 , and the two safety net hanging plates 7 are all rotatably connected with a safety net 8 , and the material of the safety net 8 is required to be light in weight and high in strength. Good wear resistance, high elongation and durability. In addition, it should have certain weather resistance. The strength of the safety net is not too great after being wet and wet. In normal state, the safety net 8 is closed, that is, it is fastened to the safety net. The hanging plate 7 can protect the safety net 8 so that the life cycle of the safety net 8 is greatly increased. The ejecting device 10 is disposed between the two safety net hanging plates 7. The ejection device 10 includes an L-shaped fixing plate 23, and both ends of the fixing plate 23 The two safety nets 7 are integrally connected or welded, and the bottom plate of the fixing plate 23 is integrally connected with two fixing seats 24, the fixing seat 24 is provided with a cylindrical guide rail, and the fixing base 24 is slidably connected with an opposite cylindrical striking rod. 25, the outer side of the fixing base 24 is provided with a stopper 27 integrally connected with the striking rod 25, and the outer side of the fixing base 24 is provided with a first spring 26 which is set on the striking rod 25, and the first spring 26 is located at the fixing seat 24 and the stopper Between 27, the side plate of the fixed plate 24 is integrally connected with two The rotating shaft 28 and the upper end of the rotating shaft 28 are respectively provided with two first fixed pulleys 43 mounted on the L-shaped fixing plate 23, and the two rotating shafts 28 are rotatably connected with the pawls 29, and the pawls 29 can catch the blocking blocks 27, The first spring 26 is in the maximum compression state. The default state of the first spring 26 is the compressed state. At this time, the pawl 29 catches the stopper 27, and the end of the pawl 29 is integrally connected with the linkage rope 30, and the linkage rope 30 is integrally connected with a rotating rod 36, and the linked rope 30 passes between the two first fixed pulleys 43. The two first fixed pulleys 43 restrict the left and right displacement of the linked rope 30, and the first fixed pulley 43 and the linked rope 30 For sliding fit;

A long slot 31 corresponding to the shape of the frame of the safety net 8 is opened on the side of the mounting net plate 7. The long slot 31 can catch the upper frame of the safety net 8. In the normal state, the upper frame of the safety net 8 is located in the long slot 31. Internally, a long guiding hole 32 is opened in the middle of the long groove 31. The size and position of the guiding hole 32 are matched with the striking rod 25, so that when the first spring 26 releases the elastic force, the striking rod 25 can pass through the guiding hole 32. Quickly hitting the upper frame of the safety net 8 to make the safety net 8 open quickly;

Four vertical columns 11 are arranged above the middle plate 6. The columns 11 are reinforced by the reinforcing ribs 12 to ensure the stability of the column 11. The upper end of the column 11 is fixed with horizontally disposed horizontal columns 13; the columns 11 and the horizontal columns 13 are passed through The fixing device 14 is fixed, and the fixing device 14 is fixed by bolts, can be loosened and fastened, and the disassembly of the column 11 and the horizontal column 13 is facilitated;

The upper end of the column 11 is integrally connected or welded with a table 15 having a length smaller than that of the bottom plate 1 and the middle plate 6. The intermediate plate 6 is integrally connected or welded with two inclined ladders 16 which are formed by the length difference of the table 15 The ladder 16 is placed at an inclined position, so that the construction worker is safer when climbing to the workbench 15. The upper ends of the two ladders 16 are respectively fixedly connected with the two ends of the worktable 15, and the protective table 17 is disposed on both sides of the workbench 15 without the ladder 16 The presence of the protective plate 17 gives the construction personnel the most basic safety guarantee;

The upper end of the shield plate 17 is integrally connected or welded with four support columns 21, and the upper end of the support column 21 is connected with an inverted V-shaped ceiling 22, and the ceiling 22 can be provided to shield the construction workers on a hot summer day, and to avoid rain on a rainy day. Taking into account the health problems of the construction workers;

Due to the inconvenience of the construction workers carrying the construction tools, the bottom of the worktable 15 is integrally connected with two storage boxes 18 of different sizes, and the construction tools are placed in the storage box 18 in advance, and can be according to the length of the construction tools. It is classified and placed in different storage boxes 18, and the storage box 18 is provided with a box cover 19, the box cover 19 is located on the surface of the worktable 15, and the handle cover 19 is integrally connected with the handle 33, and the upper end of the worktable 15 is integrated. Connected to the safety rope base 20;

The safety rope base 20 is hollow inside, and the bottom end of the safety rope base 20 is integrally connected with two parallel-shaped cylindrical brackets 34. The brackets 34 are rotatably connected with a rotating rod 36, and the rotating rod 36 is oppositely facing, for construction. At the same time, both sides of the rotating rod 36 are integrally connected with the linking rope 30. Two pulley fixing posts 44 are disposed between the two rotating rods 36. The two ends of the pulley fixing column 44 are welded and fixed to the inner side wall of the safety rope base 20. A second fixed pulley 42 is fixed on the pulley fixing column 44. The connecting rope 30 and the second fixed pulley 42 are slidingly matched. The rotating rod 36 has an annular fixing block 35 on both sides thereof, and the annular fixing block 35 is fixed on the bracket 34. The rotating rod 36 is positionally defined so as not to be laterally displaced, and the rotating rod 36 is fixedly connected to the inner wall of the safety rope base 20 by the second spring 37, and the second spring 37 can ensure the stability of the rotating rod 36, and the rotating rod The 36 shaft has a bolt hole 39, and the bolt hole 39 is connected and fixed with a safety rope 40. The material selected by the safety rope 40 must have sufficient strength to withstand the impact force when the human body falls, and the safety rope 40 runs through the safety rope base 20 , safety rope 40 end installation A fixed lock 41 is fixed, and the fixed lock 41 is fixed on the construction personnel. If the safety rope 40 is pulled to the outside of the worktable 15, the rotating rod 36 rotates, thereby driving the interlocking rope 30 integrally connected with the rotating rod 36 to be displaced, and then The pawl 29 that is integrally connected with the interlocking rope 30 is rotated, and the lower end of the pawl 29 is rotated to disengage from the stopper 27, the pawl 29 no longer catches the stopper 27, and the first spring 26 releases the tension and quickly pushes the block. When the block 27 moves, the stopper 27 drives the striking rod 25 to move, and the striking rod 25 passes through the guiding hole 32, so that the striking rod 25 is displaced to complete the striking of the frame on the safety net 8, and the safety net 8 is quickly opened.

Embodiments of the invention

Embodiment 2 On the basis of the first embodiment, the brake system 3 includes a U-shaped guide rail 3-1 installed around the universal wheel 2, and two sliding plates 3 - slidably connected with the U-shaped guide rail 3-1 2. Referring to FIG. 3, the two sliding plates 3-2 slide inside the U-shaped guide rail 3-1, the two sliding plates 3-2 are mounted with the handle 3-3, and the U-shaped guide rail has a rectangular sliding slot 3-4. Pulling the handle 3-3, the lower ends of the two sliding plates 3-2 can touch the ground; when the construction operation platform needs to be moved, the upper handle 3-3 and the sliding plate 3-2 slide upward to push the construction operation platform. When the construction operation platform needs to be fixed, the pull-down handle 3-3, the sliding plate 3-2 slides downward, the lower end of the sliding plate 3-2 touches the ground, and the friction plate or the tapered cone is installed at the lower end of the sliding plate 3-2. Strengthening the braking strength, the four sets of sliding plates 3-2 make the construction operation platform complete.

Embodiment 3, on the basis of the first embodiment, the four guiding columns 4 penetrate the middle plate 6, the height of the guiding column 4 is equal to the maximum height of the lifting rod 5, and the presence of the guiding column 4 plays a guiding role, and The construction operation platform plays a supporting role, and the top of the guide column 4 is arranged in a boss shape to define the position of the middle plate 6.

Fourth Embodiment, on the basis of the first embodiment, when the pawl 29 is engaged with the stopper 27, the first spring 26 is in an extremely compressed state, and at this time, the first spring 26 has a great elastic force, and the present invention defaults the first spring 26 The initial state is the compressed state, at which time the pawl 29 catches the stopper 27, the lower end surface of the pawl 29 has a groove, the groove can catch the stopper 27, the groove is curved, and the lower end surface of the pawl 29 contacts The first spring 26 prevents the pawl 29 from rotating in the initial state, completing a more stable jamming of the stopper 27.

In the fifth embodiment, on the basis of the first embodiment, the bottom of the safety rope base 20 and the worktable 15 are provided with circular holes corresponding to the positions, so that the linked rope 30 can penetrate the bottom of the safety rope base 20 and the worktable 15, The rotation lever 36 and the pawl 29 are connected so that the rotation of the rotation lever 36 can drive the pawl 29 to rotate.

Embodiment 6 On the basis of the first embodiment, the safety net hanging plate 7 and the safety net 8 are connected by two traction ropes 9. In the normal state, the traction rope 9 is located inside the long groove 31, and when an accident occurs, the safety net 8 sheets The traction rope 9 is towed by the safety net 8 to increase its fixation. The safety net 8 is a flexible net, has high toughness and small elasticity, and can effectively protect the falling personnel. The lower end of the safety net 8 can be blocked. The piece is used to make the angle of the safety net 8 turn only 90 degrees, and the safety net 8 can only be at the horizontal level at most.

Embodiment 7 On the basis of the first embodiment, the guide post 4 and the middle plate 6 are sliding connections, and when the lifting rod 5 controls the lifting, the middle plate 6 slides on the guiding column 4.

In the eighth embodiment, on the basis of the first embodiment, the upper end of the protective plate 17 is arranged to be inwardly convex. Referring to FIG. 6, the upwardly convex shape of the upper end can effectively enhance the protection of the protective plate 17, and can effectively protect The legs of the construction personnel make it difficult for construction workers to tip over and give construction workers safety.

Embodiment 9 On the basis of the first embodiment, the storage box 18 is rotatably connected to the box cover 19, and the box cover 19 is integrally connected or welded with a handle 33. Referring to FIG. 6, the box cover 19 is on the surface of the work table 15, so that the construction Personnel can take the construction tools quickly and easily.

Embodiment 10 On the basis of the first embodiment, in order to make the safety net hanging plate 7 have firmness and stability, the bottom of the safety net hanging plate 7 is integrally connected or welded with the middle plate 6, and the side of the safety net hanging plate 7 and the column 11 Fixed by welding.

Industrial applicability

When the invention is in use, first check whether the pawl 29 is stuck with the stopper 27, ensure that the first spring 26 is in a compressed state, and then pull the handle 3-3 upward to move the sliding plate 3-2 off the ground to push the construction operating platform to At the construction site, the handle 3-3 is pulled down to make the sliding plate 3-2 touch the ground, and the friction pad or the tapered cone is installed at the lower end of the sliding plate 3-2 to effectively strengthen the braking strength, and the four sets of sliding plates 3-2 are completed. The construction operation platform is fixed, and the construction personnel climbs to the work table 15 through the ladder 16. At this time, the construction personnel can select a suitable safety rope 40 according to the specific work situation, and then fix the fixed lock 41 to the construction personnel. The lifting rod 5 can be controlled to be lifted according to specific conditions. The lifting switch of the lifting rod 5 can be fixed on the working table 15, or can be fixed on the bottom plate 1 below, and the construction personnel themselves or the following construction workers can adjust the height according to the needs, and select Construction work at a suitable height;

During the operation of the construction personnel, the presence of the protective plate 17 provides basic protection for the safety of the construction personnel, and the safety rope 40 can give the first layer of safety protection to the construction personnel. The length of the safety rope 40 depends on the width of the worktable 15 when When an accident occurs, the safety rope 40 first ensures that the construction personnel will not fall, and the construction personnel fall out of the work table 15, at which time the safety rope 40 is tightened, the safety rope 40 is secured to the construction personnel, and the safety rope 40 pulls the rotation rod 36. Rotating, the rotating rod 36 drives the interlocking rope 30 to displace, and the connecting rope 30 drives the pawl 29 to rotate. The groove at the lower end of the pawl 29 follows the rotation of the pawl 29 to disengage from the stopper 27, and then continues to rotate upward, when completely When the pawl 29 is disengaged, the stopper 27 is released by the elastic force of the first spring 26 to follow the hitting rod 25 to the hole 32, and the hitting rod 25 passes through the guide hole 32 and collides with the upper frame of the safety net 8, due to the safety net. 8 is not fixed in the long groove 31. Therefore, due to the rapid collision of the striking rod 25, the safety net 8 can be quickly detached from the long groove 31 to be in an open state, and once the safety rope 40 is broken due to the gravity of the constructor, What safety net 8 may be made to protect the construction workers again, the initial position of the safety rope 40 is preferably straightened but did not have the tension, as soon as construction workers from the bench, pulling the safety rope 40 can rotate the rod 36.

Claims

A bridge column construction operation platform, characterized in that it comprises a bottom plate (1);

The bottom plate (1) is fixedly connected with four universal wheels (2), and the four universal wheels (2) are respectively equipped with a brake system (3), and the upper end edge of the bottom plate (1) is integrally connected or welded There are four vertically arranged guide posts (4), and a lifting rod (5) is connected to the upper end of the bottom plate (1), and a lifting rod (5) is connected with a pneumatic driving device; the bottom plate (1) is disposed directly above the bottom plate (1) The intermediate plate (6) is equal to its length, the middle plate (6) is placed at the upper end of the lifting rod (5), and the four guiding columns (4) are inserted through the intermediate plate (6) so that the middle plate (6) can be placed on the guiding column ( 4) moving up and down following the lifting and lowering of the lifting rod (5);

The upper end of the middle plate (6) is fixed with two vertically disposed safety net hanging plates (7), and the two side walls of the two safety net hanging plates (7) are rotatably connected with a safety net (8), the two An ejecting device (10) is disposed in the middle of the safety net hanging plate (7), and the ejecting device (10) includes an L-shaped fixing plate (23), and two ends of the fixing plate (23) and two safety net hanging plates ( 7) integrally connected or welded, the fixing plate (23) bottom plate is integrally connected with two fixing seats (24), and the fixing seat (24) is slidably connected with opposite facing striking rods (25), The outer side of the fixing base (24) is provided with a stopper (27) integrally connected with the rod of the striking rod (25), and the outer side of the fixing seat (24) is provided with a first spring (26) fitted on the striking rod (25). The first spring (26) is located between the fixing seat (24) and the stopper (27), and the rotating plate (28) is integrally connected to the side plate of the fixing plate (24), and the rotating shaft (28) a pawl (29) is rotatably coupled thereto, and the pawl (29) can catch the stopper (27), and the first spring (26) is in a compressed state. The upper end of the rotating shaft (28) is provided with two first fixed pulleys (43), the first fixed pulley (43) is fixedly connected with the L-shaped fixing plate (23), and the pawl (29) is connected at the end There is a linkage rope (30), and the other end of the linkage rope (30) is connected with a rotating rod (36), and the linkage rope (30) passes between two first fixed pulleys (43), the two The first fixed pulley (43) limits the left and right displacement of the interlocking rope (30), and the first fixed pulley (43) and the linked rope (30) are in a sliding fit;

The side wall of the mounting net plate (7) is provided with a long groove (31) corresponding to the upper frame of the safety net (8), and the long groove (31) can catch the upper frame of the safety net (8). A circular guide hole (32) is opened in the middle of the long groove (31), and the size and position of the guide hole (32) are matched with the striking rod (25), and the striking rod (25) can pass through the guiding hole ( 32) the upper frame of the collision safety net (8);

Four vertically disposed columns (11) are disposed above the middle plate (6), the columns (11) are reinforced by reinforcing ribs (12), and the horizontal ends of the columns (11) are fixed at the upper end ( 13); the column (11) and the horizontal column (13) are fixed by a fixture (14);

The upper end of the column (11) is integrally connected or welded with a table (15) having a length smaller than that of the bottom plate (1) and the middle plate (6), and the intermediate plate (6) is fixedly connected or welded. There are two inclined ladders (16), the upper ends of the two ladders (16) are respectively fixedly connected with the two ends of the worktable (15), and the two sides of the work platform (15) without the ladder (16) are provided Protective plate (17);

The support plate (17) is fixedly mounted with four support columns (21), and the upper end of the support column (21) is fixedly connected with an inverted V-shaped ceiling (22);

The bottom of the work table (15) is provided with two storage boxes (18) of different sizes, the storage box (18) is provided with a cover (19), and the cover (19) is located at the workbench ( 15) a surface, the upper end of the table (15) is fixedly connected with a safety rope base (20);

The safety rope base (20) is hollow inside, and the lower end of the safety rope base (20) is fixedly connected with two cylindrical brackets (34) placed in parallel, and the brackets (34) are rotatably connected and rotated. a rod (36), the two rotating rods (36) are opposite to each other, and the rotating rod (36) has an annular fixing block (35) on both sides thereof, and the annular fixing block (35) is fixed on the bracket (34), Positioning the rotating rod (36), the rotating rod (36) is connected to the linking rope (30), and two pulley fixing columns (44) are disposed in the middle of the two rotating rods (36), and the pulley is fixed Both ends of the column (44) are fixed to the inner side wall of the safety rope base (20), and the pulley fixing column (44) is fixed with a second fixed pulley (42), and the linkage rope (30) and the The two fixed pulleys (42) are slidably engaged, one end of the linked rope (30) is connected to the rotating rod (36), and the linked rope (30) is slid over the second fixed pulley (42) and the first fixed pulley (43), and linked The other end of the rope (30) is connected to the pawl (29), and the rotating rod (36) and the inner wall of the safety rope base (20) pass through the second The spring (37) is fixedly connected, and the shaft of the rotating rod (36) is provided with a bolt hole (39), and the bolt hole (39) is connected and fixed with a safety rope (40), and the safety rope (40) runs through A safety rope base (20) is fixed to the end of the safety rope (40) with a fixed lock (41).
The bridge column construction operation platform according to claim 1, wherein the brake system (3) comprises a U-shaped guide rail (3-1) installed around the universal wheel (2), and the U-shaped Two sliding plates (3-2) slidably connected to the guide rails (3-1), the two sliding plates (3-2) are mounted with handles (3-3), and the U-shaped guide rails (3-1) are opened There is a rectangular chute (3-4), the handle (3-3) is slidably engaged with the chute (3-4), and the handle (3-3) is pulled downward, and two sliding plates (3-2) The lower end can touch the ground, and the lower end of the sliding plate (3-2) is equipped with a friction pad or a tapered cone.
The bridge column construction operation platform according to claim 1, wherein the four guide columns (4) penetrate the middle plate (6), and the height of the guide column (4) is equal to the elevation of the lifting rod (5) The maximum height, and the top of the guide post (4) is set to be a boss.
The bridge column construction operation platform according to claim 1, wherein when the pawl (29) catches the stopper (27), the first spring (26) is in an extremely compressed state, and the first spring ( 26) has a great elastic force, the initial state of the first spring (26) is a compressed state, at this time the pawl (29) catches the stopper (27), and the lower end surface of the pawl (29) has a groove, a groove The groove can catch the stopper (27), the groove is curved, and the lower end surface of the pawl (29) contacts the first spring (26), so that the pawl (29) cannot be rotated in the initial state.
The bridge column construction operation platform according to claim 1, wherein the bottom of the safety rope base (20) and the work table (15) are provided with circular holes corresponding to positions, so that the linkage rope (30) The rotating rod (36) and the pawl (29) can be connected to the bottom of the safety rope base (20) and the table (15).
The bridge column construction operation platform according to claim 1, characterized in that the safety net hanging plate (7) and the safety net (8) are connected by two traction ropes (9), and in the normal state, the traction rope (9) ) is located inside the long trough (31), which is a flexible net.
The bridge column construction operation platform according to claim 1, characterized in that the guide column (4) and the middle plate (6) are sliding connections.
The bridge pillar construction operation platform according to claim 1, characterized in that the upper end of the shield plate (17) is arranged to be inwardly convex.
The bridge pillar construction operation platform according to claim 1, characterized in that the upper end of the shield plate (17) is arranged to be inwardly convex.
The bridge column construction operation platform according to claim 1, characterized in that the bottom of the safety net hanging plate (7) is integrally connected or welded with the middle plate (6), and the safety net hanging plate (7) and the column ( 11) Welding fixed.