Anti-falling device for municipal bridge construction

Abstract

The utility model provides an anti-falling device for municipal bridge construction. The anti-falling device for municipal bridge construction comprises two supporting seats, two supporting pipes are fixedly installed on the supporting seats, adjusting rods are arranged in the supporting pipes in a sliding mode, supporting blocks are fixedly installed on the adjusting rods, an anti-falling net is arranged between the two supporting blocks, and clamping mechanisms are arranged on the supporting blocks. According to the anti-falling device for municipal bridge construction provided by the utility model, the clamping mechanism is arranged, so that the anti-falling net can be quickly mounted and used by matching a small number of adjusting bolts I with the pressing plate; a transmission mechanism is arranged, so that the two adjusting rods can be controlled to be lifted and adjusted in the supporting pipe under the condition of single-person operation, and the use convenience is improved; and the height of the two pairs of rollers can be adjusted through the arranged adjusting bolts, so that the device can be kept stable when used on the uneven ground, and toppling is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of municipal bridge construction, in particular to an anti-fall device for municipal bridge construction. Background Art

[0002] During the construction of municipal bridges, an anti-fall device is usually installed under the bridge construction site to prevent scraps from falling during the bridge construction process and hitting construction workers and pedestrians under the bridge, thus playing a certain safety precaution role.

[0003] Publication number CN215104705U A construction anti-fall device for municipal bridge projects, including a base, two bases, and a telescopic rod fixedly connected to the top of the base, a vertical plate fixedly connected to the top of the telescopic rod, a horizontal plate symmetrically fixedly connected to one side of the vertical plate, and a guide slide bar equidistantly fixedly connected between the two groups of horizontal plates. By setting fixing bolts, the fixing bolts can lock and fix the anti-fall net, which is convenient for disassembly and assembly of the anti-fall net and replacement of the anti-fall net. The anti-fall net can block and collect scraps and construction waste, and can prevent scraps from falling directly to the ground and hitting passers-by or workers, causing safety hazards. By setting a buffer spring, the buffer spring can improve the buffering performance of the buffer plate, and then improve the buffering performance of the anti-fall net, so that the anti-fall net can better block and collect scraps and construction waste.

[0004] However, there are still some shortcomings in the above structure. When adjusting the telescopic rod of the upper device, one person is required to control the lifting of the solid rod, and another person is required to tighten the locking bolt. Therefore, two or more people are required to cooperate with each other, which is inconvenient to operate. Secondly, when installing the anti-fall net, multiple fixing bolts are required for fixing. Therefore, each installation of the protective net is time-consuming and the installation efficiency is low.

[0005] Therefore, it is necessary to provide a new anti-fall device for municipal bridge construction to solve the above technical problems. Utility Model Content

[0006] The technical problem solved by the utility model is to provide an anti-fall device for municipal bridge construction, which can adjust and use the support rods by one person and quickly install and disassemble the anti-fall net.

[0007] In order to solve the above technical problems, the utility model provides an anti-fall device for municipal bridge construction, comprising: two support seats, two support tubes fixedly mounted on the support seats, an adjustment rod slidingly arranged in the support tube, a support block fixedly mounted on the adjustment rod, an anti-fall net arranged between the two support blocks, a clamping mechanism arranged on the support block, and a transmission mechanism arranged on the support seat;

[0008] The clamping mechanism includes a folded angle plate, which is fixedly mounted on the support block, a pressing plate provided in the folded angle plate, two connecting blocks fixedly mounted on the pressing plate, two adjusting bolts 1 being threadedly mounted on the folded angle plate, one end of the adjusting bolt 1 extending into the folded angle plate and fixedly mounted with a ball rod, a ball groove being provided on the connecting block, and the ball rod being adapted to the ball groove;

[0009] The transmission mechanism includes a hollow rod, which is fixedly installed between two supporting tubes, and a rotating shaft is rotatably installed in the hollow rod, a fixed sleeve on the rotating shaft is provided with a conical wheel 1, and a handwheel is fixedly installed on one end of the rotating shaft extending outside the hollow rod, and four fixing frames are fixedly installed in the hollow rod, and a rotating rod is rotatably installed on the fixing frame, and a conical wheel 2 and a conical wheel 3 are respectively fixedly installed at both ends of the rotating rod, and the conical wheel 2 is meshed with the conical wheel 1, and a threaded rod is rotatably installed in the supporting tube, one end of the threaded rod extends into the adjusting rod and is threadedly connected to the adjusting rod, and a conical wheel 4 is fixedly provided on the threaded rod, and the conical wheel 4 is meshed with the conical wheel 3.

[0010] As a further solution of the present invention, a triangular block is fixedly installed on the pressing plate, a triangular groove is opened on the supporting block, and the triangular block is adapted to the triangular groove.

[0011] As a further solution of the present invention, four fixed blocks are fixedly installed on the support seat, and the four fixed blocks are distributed in a rectangular array along the outside of the support seat. An adjusting bolt 2 is threadedly installed on the fixed block, and a roller is provided under the fixed block. One end of the adjusting bolt 2 is rotatably connected to the roller.

[0012] As a further solution of the present invention, two fixing plates are fixedly installed on the support seat, and the two fixing plates are symmetrically distributed. Positioning bolts are threadedly installed on the fixing plates, and the bottom ends of the positioning bolts are set to a conical structure.

[0013] As a further solution of the present invention, the radial diameter of the conical wheel three is greater than the radial diameter of the conical wheel four, and the conical wheel three is located in the support tube.

[0014] As a further solution of the present invention, a plurality of hemispherical protrusions are fixedly mounted on the handwheel, and the plurality of hemispherical protrusions are distributed in a circumferential manner along the outer side of the handwheel.

[0015] Compared with related technologies, the anti-fall device for municipal bridge construction provided by the present invention has the following beneficial effects:

[0016] 1. The utility model is provided with a clamping mechanism, which enables the anti-fall net to be quickly installed by using a small number of adjusting bolts in conjunction with the pressing plate, thereby improving the installation and disassembly efficiency of the anti-fall net;

[0017] 2. The utility model is provided with a transmission mechanism, so that the two adjustment rods can be controlled to move up and down in the support tube in a single-person operation, thereby improving the convenience of use;

[0018] 3. The utility model can adjust the height by means of the adjusting bolts and two pairs of rollers, so that the device can remain stable and prevent tipping when used on uneven ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 A schematic diagram of the three-dimensional structure of the anti-fall device for municipal bridge construction provided by the utility model;

[0021] Figure 2 This is a schematic diagram of the cross-section structure of the anti-fall device for municipal bridge construction provided by the utility model;

[0022] Figure 3 This is a schematic diagram of the clamping mechanism structure of the anti-fall device for municipal bridge construction provided by the utility model.

[0023] In the figure: 1. Support seat; 2. Support tube; 201. Adjusting rod; 202. Support block; 203. Anti-fall net; 3. Angle plate; 301. Pressing plate; 302. Connecting block; 303. Adjusting bolt 1; 304. Ball rod; 4. Hollow rod; 401. Rotating shaft; 402. Conical wheel 1; 403. Handwheel; 404. Fixed frame; 405. Rotating rod; 406. Conical wheel 2; 407. Conical wheel 3; 408. Threaded rod; 408. Threaded rod; 409. Conical wheel 4; 5. Fixed block; 501. Adjusting bolt 2; 502. Roller; 6. Fixed plate; 601. Positioning bolt. DETAILED DESCRIPTION

[0024] Please refer to Figure 1 、 Figure 2 and Figure 3 ,in, Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model anti-fall device for municipal bridge construction; Figure 2 This is a schematic diagram of the cross-section structure of the anti-fall device for municipal bridge construction provided by the utility model; Figure 3This is a schematic diagram of the clamping mechanism structure of the utility model's anti-fall device for municipal bridge construction. The anti-fall device for municipal bridge construction comprises: two support bases 1, two support tubes 2 fixedly mounted on the support bases 1, an adjustment rod 201 slidably mounted within the support tubes 2, a support block 202 fixedly mounted on the adjustment rod 201, an anti-fall net 203 disposed between the two support blocks 202, a clamping mechanism disposed on the support blocks 202, and a transmission mechanism disposed on the support bases 1;

[0025] The clamping mechanism includes a folded angle plate 3, which is fixedly mounted on the support block 202. A pressing plate 301 is provided inside the folded angle plate 3. Two connecting blocks 302 are fixedly mounted on the pressing plate 301. Two adjusting bolts 303 are threadedly mounted on the folded angle plate 3. One end of the adjusting bolt 303 extends into the folded angle plate 3 and is fixedly mounted with a ball rod 304. A ball groove is provided on the connecting block 302, and the ball rod 304 is adapted to the ball groove.

[0026] The transmission mechanism includes a hollow rod 4, which is fixedly installed between two supporting tubes 2. A rotating shaft 401 is rotatably installed in the hollow rod 4, and a conical wheel 402 is fixedly sleeved on the rotating shaft 401. A handwheel 403 is fixedly installed on one end of the rotating shaft 401 extending to the outside of the hollow rod 4. Four fixing frames 404 are fixedly installed in the hollow rod 4, and a rotating rod 405 is rotatably installed on the fixing frame 404. Conical wheels 2 406 and 3 407 are fixedly installed at both ends of the rotating rod 405, respectively. The conical wheel 2 406 is meshed with the conical wheel 1 402. A threaded rod 408 is rotatably installed in the supporting tube 2, and one end of the threaded rod 408 extends into the adjusting rod 201 and is threadedly connected to the adjusting rod 201. A conical wheel 409 is fixedly sleeved on the threaded rod 408, and the conical wheel 409 is meshed with the conical wheel 3 407.

[0027] like Figure 3 As shown, a triangular block is fixedly mounted on the pressing plate 301, and a triangular groove is opened on the supporting block 202, and the triangular block is adapted to the triangular groove;

[0028] By providing the triangular block and the triangular groove, the triangular block on the pressing plate 301 can be buckled into the triangular groove to enhance the friction between the anti-fall net 203 and then press one side of the anti-fall net 203 firmly to prevent it from falling off.

[0029] like Figure 2As shown, four fixing blocks 5 are fixedly mounted on the support base 1. The four fixing blocks 5 are distributed in a rectangular array along the outer side of the support base 1. An adjusting bolt 2 501 is threadedly mounted on the fixing block 5. A roller 502 is provided below the fixing block 5. One end of the adjusting bolt 2 501 is rotatably connected to the roller 502.

[0030] By turning the adjusting bolt 501 , the roller 502 can be driven by the adjusting bolt 501 to be raised or lowered, so that the support base 1 can remain stable and firm even on uneven ground to prevent it from tipping over.

[0031] like Figure 2 As shown, two fixing plates 6 are fixedly mounted on the support base 1, and the two fixing plates 6 are symmetrically distributed. Positioning bolts 601 are threadedly mounted on the fixing plates 6, and the bottom end of the positioning bolts 601 is set to a conical structure;

[0032] By screwing the positioning bolt 601 and rotating it helically, the tapered end of the positioning bolt 601 rests on the ground, thereby improving the stability of the device and preventing shaking and movement.

[0033] like Figure 2 As shown, the radial diameter of the conical wheel 3 407 is greater than the radial diameter of the conical wheel 409, and the conical wheel 3 407 is located in the support tube 2;

[0034] Because the radial diameter of the conical wheel three 407 is larger than the radial diameter of the conical wheel four 409, the torque is reduced when the conical wheel three 407 drives the conical wheel four 409 to rotate, and the rotation speed is increased, so that the conical wheel four 409 can drive the threaded rod 408 to rotate quickly.

[0035] like Figure 3 As shown, a plurality of hemispherical protrusions are fixedly mounted on the hand wheel 403, and the plurality of hemispherical protrusions are distributed around the outer side of the hand wheel 403;

[0036] By providing the hemispherical protrusion, the friction force between the hand and the handle wheel 403 can be increased when the hand handle wheel 403 rotates, thereby improving the rotation efficiency of the hand handle wheel 403.

[0037] The working principle of the anti-fall device for municipal bridge construction provided by the utility model is as follows:

[0038] Step 1: When using, move the device to the working position, then manually tighten the adjusting bolt 501 and the positioning bolt 601 to rotate the screw, and the adjusting bolt 501 drives the roller 502 to adjust the support height so that the device remains stable;

[0039] The second step is to unfold the anti-fall net 203, place one side of the anti-fall net 203 on the support block 202, and press the top of the anti-fall net 203 with the pressing plate 301, then turn the adjusting bolt 1 303 to rotate, so that the adjusting bolt 1 303 can drive the pressing plate 301 to move and fix and press one side of the anti-fall net 203 to prevent it from falling off, so that the installation is completed quickly. The unfolded anti-fall net 203 can play a role in protecting scrap materials from falling during bridge construction;

[0040] The third step: rotate the handwheel 403 by hand, and then the handwheel 403 drives the conical wheel 1 402 to rotate through the rotating shaft 401, and the two conical wheels 2 406 meshing with the conical wheel 1 402 will be driven to rotate at the same time, and then the conical wheel 2 406 drives the conical wheel 3 407 to rotate through the rotating rod 405, and the conical wheel 409 meshing with the conical wheel 3 407 will be driven to rotate, and then the conical wheel 409 drives the threaded rod 408 to rotate spirally, so that the threaded rod 408 can drive the adjusting rod 201 to rise and fall, and then the adjusting rod 201 drives the anti-fall net 203 to adjust the support protection height. The operation is convenient and can be operated by one person.

[0041] It should be noted that the device structure and drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the device's power mechanism, power supply system, and control system are not fully described. However, those skilled in the art can clearly understand the details of its power mechanism, power supply system, and control system on the premise that they understand the principle of the above-mentioned utility model. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be implemented by simple programming by those skilled in the art.

[0042] The standard parts used can be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.

[0043] Although the 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 variations may be made to these embodiments or applied directly or indirectly without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A fall prevention device for municipal bridge construction, characterized in that: include: Two support seats, two support tubes are fixedly installed on the support seats, an adjustment rod is slidably provided in the support tube, a support block is fixedly installed on the adjustment rod, an anti-fall net is provided between the two support blocks, a clamping mechanism is provided on the support block, and a transmission mechanism is provided on the support seat; The clamping mechanism includes a folded angle plate, which is fixedly mounted on the support block, a pressing plate provided in the folded angle plate, two connecting blocks fixedly mounted on the pressing plate, two adjusting bolts 1 being threadedly mounted on the folded angle plate, one end of the adjusting bolt 1 extending into the folded angle plate and fixedly mounted with a ball rod, a ball groove being provided on the connecting block, and the ball rod being adapted to the ball groove; The transmission mechanism includes a hollow rod, which is fixedly installed between two supporting tubes, and a rotating shaft is rotatably installed in the hollow rod, a fixed sleeve on the rotating shaft is provided with a conical wheel 1, and a handwheel is fixedly installed on one end of the rotating shaft extending outside the hollow rod, and four fixing frames are fixedly installed in the hollow rod, and a rotating rod is rotatably installed on the fixing frame, and a conical wheel 2 and a conical wheel 3 are respectively fixedly installed at both ends of the rotating rod, and the conical wheel 2 is meshed with the conical wheel 1, and a threaded rod is rotatably installed in the supporting tube, one end of the threaded rod extends into the adjusting rod and is threadedly connected to the adjusting rod, and a conical wheel 4 is fixedly provided on the threaded rod, and the conical wheel 4 is meshed with the conical wheel 3.

2. The anti-fall device for municipal bridge construction according to claim 1 is characterized in that: A triangular block is fixedly mounted on the pressing plate, a triangular groove is formed on the supporting block, and the triangular block is adapted to the triangular groove.

3. The anti-fall device for municipal bridge construction according to claim 1 is characterized in that: Four fixed blocks are fixedly installed on the support seat, and the four fixed blocks are distributed in a rectangular array along the outside of the support seat. An adjusting bolt 2 is threadedly installed on the fixed block, and a roller is provided under the fixed block. One end of the adjusting bolt 2 is rotatably connected to the roller.

4. The anti-fall device for municipal bridge construction according to claim 1 is characterized in that: Two fixing plates are fixedly mounted on the support seat, and the two fixing plates are symmetrically distributed. Positioning bolts are threadedly mounted on the fixing plates, and the bottom ends of the positioning bolts are configured as a conical structure.

5. The anti-fall device for municipal bridge construction according to claim 1 is characterized in that: The radial diameter of the conical wheel three is greater than the radial diameter of the conical wheel four, and the conical wheel three is located in the support tube.

6. The anti-fall device for municipal bridge construction according to claim 1, characterized in that: A plurality of hemispherical protrusions are fixedly mounted on the hand wheel, and the plurality of hemispherical protrusions are distributed in a surrounding manner along the outer side of the hand wheel.

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