Road and bridge construction approach slab structure

Abstract

The utility model relates to the technical field of approach slab structures, in particular to a road and bridge construction approach slab structure. According to the technical scheme, the anti-falling device comprises a base and stand columns fixedly installed on the two sides of the base and further comprises a bearing plate installed between the two stand columns in a sliding mode, a driving mechanism installed on the stand columns and an anti-falling mechanism installed on the driving mechanism, and the anti-falling mechanism is used for intercepting the bearing plate which falls quickly. According to the utility model, the driving plate is bent. When a steel cable is broken or a wire coil breaks down and the driving plate rapidly falls down, the driving plate recovers to the horizontal state, the two sides of the driving plate recovered to the horizontal state will make contact with the limiting strips, and the limiting strips bear the driving plate, so that the bearing plate is prevented from falling down, and harm to workers is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of slab structures, in particular to a slab structure for road and bridge construction. Background Art

[0002] At present, with the development of science and technology, cities are constantly expanding, and roads and bridges have become an indispensable part of urban construction. Highway bridge projects include the main bridge project and the ancillary engineering facilities in the overall bridge position. There are many ancillary engineering facilities, such as railings on the bridge deck to prevent wheel collisions, sidewalk railings to ensure pedestrian safety, as well as bridge signs, navigation signs under the bridge and bridge deck lighting equipment, all of which require slab structures during the construction process.

[0003] The existing scaffolding structure is usually fixed with bolts, and the height of the load-bearing plate is adjusted by adjusting the position of the bolts. This method has poor flexibility. When workers are on the load-bearing plate, they cannot adjust the height of the load-bearing plate, which is not conducive to improving construction efficiency. In addition, when the bolts are not fixed firmly, the load-bearing plate will fall from the column. The existing scaffolding structure cannot intercept the falling load-bearing plate, which may cause workers to fall and get injured. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and proposes a road bridge construction plank structure which is convenient for adjusting the height of the bearing plate and can prevent the bearing plate from falling.

[0005] The technical solution of the utility model is: a road bridge construction slab structure, including a base, columns fixedly installed on both sides of the base, and also including:

[0006] A bearing plate slidably mounted between the two uprights;

[0007] A driving mechanism installed on the column, wherein the driving mechanism drives the carrying plate to perform lifting movement;

[0008] The anti-falling mechanism is installed on the driving mechanism, and the anti-falling mechanism intercepts the rapidly falling carrying plate.

[0009] Optionally, the driving mechanism includes a wire reel rotatably installed between the two columns, a steel cable wound around the wire reel, and a power device for driving the wire reel to rotate.

[0010] Optionally, the power device includes a transmission belt installed on one of the columns, and two pulleys of the transmission belt are rotatably connected to the column, one of the pulleys is coaxially fixedly connected to the wire reel, and a worm wheel is coaxially fixedly installed on the other pulley, and a worm is rotatably installed on one of the columns, and the worm and worm wheel are meshed with each other.

[0011] Optionally, a motor is fixedly mounted on one of the columns, the output shaft of the motor is coaxially fixedly connected to one end of the worm, a handle is fixedly mounted on the other end of the worm, a battery is fixedly mounted on the base, and the battery is electrically connected to the motor.

[0012] Optionally, the anti-fall mechanism includes a drive plate fixedly mounted on the steel cable, a traction rope is fixedly mounted on the four corners of the drive plate, the other end of the traction rope is fixedly connected to the load-bearing plate, the drive plate is composed of a plurality of steel belts, and the steel belts are made of spring steel plates.

[0013] Optionally, the anti-fall mechanism also includes multiple groups of mounting grooves arranged on the column, one group of mounting grooves includes two slide grooves, the two slide grooves are respectively located on both sides of the column, connecting blocks are slidably installed in the slide grooves, and a limiting strip is fixedly installed on the two connecting blocks located in the same group, and a buffer spring is fixedly installed on the connecting block, and the other end of the buffer spring is fixedly connected to the bottom of the slide groove.

[0014] Optionally, a plurality of rollers are fixedly mounted on the base.

[0015] Optionally, slideways are provided on both sides of the column, and the bearing plate is slidably connected to the slideways.

[0016] Compared with the prior art, the utility model has the following beneficial technical effects:

[0017] The worm is driven to rotate by starting the motor, which in turn drives the transmission belt to rotate. The transmission belt can drive the wire coil to rotate, and then the steel cable can be retracted and released. The steel cable can drive the driving plate to move up and down, and the traction rope can drive the load-bearing plate to move up and down. The load-bearing plate can be raised and lowered when the worker stands on it, which can effectively improve work efficiency.

[0018] Furthermore, since the spring steel plate has good elasticity and toughness, and the middle part of the driving plate is stretched upward by the steel cable, and the two sides of the driving plate are subjected to the downward gravity of the load-bearing plate, the driving plate bends. When the steel cable breaks or the wire coil fails, the driving plate falls rapidly downward, and the driving plate will not be subjected to the upward pulling force of the steel cable. At this time, the driving plate will return to a horizontal state under the action of its own elastic force. The two sides of the driving plate that have returned to a horizontal state will contact the limit strips, and the limit strips will support the driving plate. At this time, the buffer spring absorbs the kinetic energy of the fall and prevents the driving plate from having a rigid impact with the limit strips, which can play a buffering role. This prevents the load-bearing plate from falling and avoids injuries to workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A structural schematic diagram of an embodiment of the utility model is given;

[0020] Figure 2 A schematic diagram of the structure of the front side of the utility model is given;

[0021] Figure 3 A structural schematic diagram of the utility model column is given;

[0022] Figure 4 A schematic diagram of the structure of the connection block and the limit strip of the utility model is given;

[0023] Figure 5 A schematic diagram of the positions of the drive plate and the bearing plate of the utility model is given;

[0024] Figure 6 Provide the utility model Figure 1 A partial enlarged view of the middle A;

[0025] Figure 7 Provide the utility model Figure 2 A partial enlarged view of point B in the middle;

[0026] Figure 8 Provide the utility model Figure 3 A partial enlarged view of point C in the middle.

[0027] Figure numerals: 1, base; 101, roller; 102, column; 2, load-bearing plate; 201, slideway; 3, wire reel; 301, steel cable; 302, driving plate; 303, traction rope; 4, slide groove; 401, connecting block; 402, limit strip; 403, buffer spring; 5, transmission belt; 6, worm gear; 601, worm; 602, handle; 603, motor; 604, battery. DETAILED DESCRIPTION

[0028] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] Example

[0030] like Figure 1-2 As shown, the utility model provides a road bridge construction slab structure, comprising a base 1, columns 102 fixedly mounted on both sides of the base 1, and a plurality of rollers 101 fixedly mounted on the base 1. The arrangement of the rollers 101 facilitates the movement of the base 1.

[0031] like Figure 1-2 and Figure 6As shown, it also includes a bearing plate 2 slidably mounted between two columns 102. Slideways 201 are provided on both sides of the columns 102, and the bearing plate 2 is connected to the slideways 201. The slideways 201 guide the bearing plate 2, and the driving mechanism installed on the columns 102 drives the bearing plate 2 to perform lifting and lowering movements. The driving mechanism includes a wire coil 3 rotatably mounted between the two columns 102, a steel cable 301 wound on the wire coil 3, and a power device for driving the wire coil to rotate. The wire coil 3 winds the steel cable 301. Then, the length of the steel cable 301 located outside the wire coil 3 can be controlled.

[0032] The power device includes a transmission belt 5 installed on one of the columns 102, and two pulleys of the transmission belt 5 are rotatably connected to the column 102, one of the pulleys is coaxially fixedly connected to the wire reel 3, and a worm wheel 6 is coaxially fixedly installed on the other pulley, and a worm 601 is rotatably installed on one of the columns 102, and the worm 601 is meshed with the worm wheel 6. Rotating the worm 601 can drive the worm wheel 6 to rotate, thereby driving the transmission belt 5 to rotate, and the wire reel 3 can be rotated through the transmission of the transmission belt 5, thereby retracting and releasing the steel cable 301.

[0033] A motor 603 is fixedly mounted on one of the columns 102, and the output shaft of the motor 603 is coaxially fixedly connected to one end of the worm 601, and a hand 602 is fixedly mounted on the other end of the worm 601. A battery 604 is fixedly mounted on the base 1, and the battery 604 is electrically connected to the motor 603. The motor 603 can be started to drive the worm 601 to rotate, and then the worm 601 drives the worm wheel 6 to rotate. The battery 604 provides power for the motor 603. The hand 602 can also be manually rotated to drive the worm 601 to rotate. The height of the carrying plate 2 can also be adjusted when the battery 604 is insufficient.

[0034] like Figure 1-5 and Figure 7-8As shown, the anti-fall mechanism installed on the driving mechanism intercepts the rapidly falling load-bearing plate 2. The anti-fall mechanism includes a driving plate 302 fixedly installed on the steel cable 301, and traction ropes 303 are fixedly installed at the four corners of the driving plate 302, and the other end of the traction rope 303 is fixedly connected to the load-bearing plate 2. The steel cable 301 can drive the driving plate 302 to perform lifting and lowering movements, and the load-bearing plate 2 can be driven to perform lifting and lowering movements through the traction rope 303. The driving plate 302 is composed of a plurality of steel belts, and the steel belts are made of spring steel plates. The spring steel plate has good elasticity and toughness. Since the middle part of the driving plate 302 is stretched upward by the steel cable 301, and the two sides of the driving plate 302 are subjected to the downward gravity of the load-bearing plate 2, the driving plate 302 is bent. When the steel cable 301 breaks or the wire coil 3 fails, the driving plate 302 falls down quickly, and the driving plate 302 will not be subjected to the upward pulling force of the steel cable 301. At this time, the driving plate 302 will return to a horizontal state under the action of its own elastic force, and the two sides of the driving plate 302 will extend outward. The anti-fall mechanism also includes multiple groups of mounting grooves arranged on the column 102, one group of mounting grooves includes two slide grooves 4, and the two slide grooves 4 are respectively located on both sides of the column 102. A connecting block 401 is slidably installed in the slide groove 4, and a limiting strip 402 is fixedly installed on the two connecting blocks 401 in the same group, and a buffer spring 403 is fixedly installed on the connecting block 401, and the other end of the buffer spring 403 is fixedly connected to the bottom of the slide groove 4. The two sides of the driving plate 302 that has returned to the horizontal state will contact the limit bars 402, and the limit bars 402 will support the driving plate 302. The limit bars 402 will move downward with the driving plate 302. At this time, the buffer spring 403 absorbs the kinetic energy of the fall and prevents the driving plate 302 from having a rigid impact with the limit bars 402, which can play a buffering role. When the buffer spring 403 is compressed to the limit, the driving plate 302 will not be able to move further downward. This prevents the load-bearing plate 2 from falling and avoids injuries to workers.

[0035] Working principle: Starting the motor 603 can drive the worm 601 to rotate, and then the worm 601 drives the worm wheel 6 to rotate. Then the transmission belt 5 is driven to rotate, and the wire reel 3 is driven by the transmission of the transmission belt 5 to rotate, and then the steel cable 301 is retracted and released. The steel cable 301 can drive the driving plate 302 to move up and down, and the traction rope 303 can drive the carrying plate 2 to move up and down.

[0036] The driving plate 302 is composed of a plurality of steel strips, which are made of spring steel plates. The spring steel plates have good elasticity and toughness. Since the middle part of the driving plate 302 is stretched upward by the steel cable 301, and the two sides of the driving plate 302 are subjected to the downward gravity of the bearing plate 2, the driving plate 302 is bent. When the steel cable 301 breaks or the wire coil 3 fails, the driving plate 302 falls downward rapidly, and the driving plate 302 will not be subjected to the upward pulling force of the steel cable 301. At this time, the driving plate 302 will return to a horizontal state under the action of its own elastic force, and the two sides of the driving plate 302 will extend outward.

[0037] The two sides of the driving plate 302 that has returned to the horizontal state will contact the limit bars 402, and the limit bars 402 will support the driving plate 302. The limit bars 402 will move downward with the driving plate 302. At this time, the buffer spring 403 absorbs the kinetic energy of the fall and prevents the driving plate 302 from having a rigid impact with the limit bars 402, which can play a buffering role. When the buffer spring 403 is compressed to the limit, the driving plate 302 will not be able to move further downward. This prevents the load-bearing plate 2 from falling and avoids injuries to workers.

[0038] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A road bridge construction slab structure, comprising a base (1), and columns (102) fixedly mounted on both sides of the base (1), characterized in that: Also includes: A bearing plate (2) slidably mounted between the two upright posts (102); A driving mechanism installed on the column (102), wherein the driving mechanism drives the carrying plate (2) to perform lifting movement; An anti-falling mechanism installed on the driving mechanism, the anti-falling mechanism intercepts the rapidly falling carrying plate (2); The driving mechanism comprises a wire reel (3) rotatably mounted between the two uprights (102), a steel cable (301) wound around the wire reel (3), and a power device for driving the wire reel to rotate; The anti-fall mechanism comprises a driving plate (302) fixedly mounted on a steel cable (301), traction ropes (303) are fixedly mounted at four corners of the driving plate (302), the other end of the traction rope (303) is fixedly connected to a bearing plate (2), and the driving plate (302) is composed of a plurality of steel belts, which are made of spring steel plates; The anti-fall mechanism also includes a plurality of groups of mounting grooves arranged on the column (102), one group of the mounting grooves includes two slide grooves (4), the two slide grooves (4) are respectively located on both sides of the column (102), a connecting block (401) is slidably installed in the slide groove (4), a limiting strip (402) is fixedly installed on the two connecting blocks (401) located in the same group, a buffer spring (403) is fixedly installed on the connecting block (401), and the other end of the buffer spring (403) is fixedly connected to the bottom of the slide groove (4).

2. A road and bridge construction slab structure according to claim 1, characterized in that: The power device comprises a transmission belt (5) mounted on one of the columns (102), two pulleys of the transmission belt (5) are rotatably connected to the column (102), one of the pulleys is coaxially fixedly connected to the wire reel (3), a worm wheel (6) is coaxially fixedly mounted on the other pulley, a worm (601) is rotatably mounted on one of the columns (102), and the worm (601) and the worm wheel (6) are meshed with each other.

3. A road and bridge construction slab structure according to claim 2, characterized in that: A motor (603) is fixedly mounted on one of the uprights (102); an output shaft of the motor (603) is coaxially fixedly connected to one end of the worm (601); a handle (602) is fixedly mounted on the other end of the worm (601); a battery (604) is fixedly mounted on the base (1); and the battery (604) is electrically connected to the motor (603).

4. A road and bridge construction slab structure according to claim 3, characterized in that: A plurality of rollers (101) are fixedly mounted on the base (1).

5. A road and bridge construction slab structure according to claim 4, characterized in that: Slideways (201) are provided on both sides of the upright column (102), and the bearing plate (2) is slide-connected to the slideways (201).

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