CN220336469U

CN220336469U - Bridge construction anti-falling device

Info

Publication number: CN220336469U
Application number: CN202321842316.6U
Authority: CN
Inventors: 秦佳亮; 朱彩丽; 叶涛; 张成明; 宛楠
Original assignee: Heilongjiang Longjian Road And Bridge No5 Engineering Co ltd
Current assignee: Heilongjiang Longjian Road And Bridge No5 Engineering Co ltd
Priority date: 2023-07-13
Filing date: 2023-07-13
Publication date: 2024-01-12
Anticipated expiration: 2033-07-13

Abstract

The utility model discloses a bridge construction falling prevention device, which belongs to the field of bridge construction and comprises a fixing frame, a mounting hole, a falling prevention mechanism, a rotating shaft assembly and a limiting mechanism, wherein the fixing frame is arranged on the fixing frame; the number of the mounting holes is multiple, the mounting holes are uniformly distributed at the outer end of the fixing frame, the falling prevention mechanism is arranged at the front end of the fixing frame, the rotating shaft assembly is arranged at the lower end of the fixing frame and connected with the falling prevention mechanism, two symmetrical threaded holes are formed in one end, far away from the falling prevention mechanism, of the fixing frame, two symmetrical sliding grooves are cut in the outer end of the fixing frame, the sliding grooves are communicated with the threaded holes, and the limiting mechanism is arranged in the sliding grooves; can realize utilizing the mutually supporting of mechanism, pivot subassembly, stop gear structure that prevents falling, make prevent falling the device and have the effect of shrink regulation, can make it retrieve under strong condition of strong wind or wind-force, and then reduce and produce continuous rocking because of the influence of wind-force, avoid rocking the high altitude potential safety hazard that drops that appears for a long time.

Description

Bridge construction anti-falling device

Technical Field

The utility model relates to the field of bridge construction, in particular to a falling prevention device for bridge construction.

Background

The bridge is generally composed of an upper structure, a lower structure, a support and an accessory structure, wherein the upper structure is also called a bridge span structure and is a main structure for crossing obstacles; the lower structure comprises a bridge abutment, a bridge pier and a foundation; the support is a force transmission device arranged at the supporting position of the bridge span structure and the bridge pier or the bridge abutment; the auxiliary structure refers to bridge head butt strap, cone slope protection, shore protection, diversion engineering and the like; the drop-proof net is commonly used for protecting bridges during construction.

The anti-falling device can guarantee the safety of bridge constructors and the falling of articles, but the bridge is in a higher position due to factors of construction sites, so that the wind power of the bridge in windy weather is stronger than that of the ground, the conventional anti-falling device is not provided with a shrinkage structure, the anti-falling device is easy to shake continuously when being blown by strong wind power, and the risk of loosening or damaging partial components and further falling is unavoidable for a long time.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model aims to provide the bridge construction anti-falling device, which can realize the effect of shrinkage adjustment by utilizing the mutual coordination of the anti-falling mechanism, the rotating shaft component and the limiting mechanism structure, and can be recovered under the condition of strong wind or wind force, thereby reducing continuous shaking caused by the influence of the wind force and avoiding the potential safety hazard of high-altitude falling caused by long-term shaking.

In order to solve the problems, the utility model adopts the following technical scheme.

A bridge construction falling prevention device comprises a fixing frame, a mounting hole, a falling prevention mechanism, a rotating shaft assembly and a limiting mechanism; the number of the mounting holes is multiple, the mounting holes are uniformly distributed at the outer end of the fixing frame, the anti-falling mechanism is arranged at the front end of the fixing frame, the rotating shaft assembly is arranged at the lower end of the fixing frame and connected with the anti-falling mechanism, two symmetrical threaded holes are formed in one end, far away from the anti-falling mechanism, of the fixing frame, two symmetrical sliding grooves are cut in the outer end of the fixing frame, the sliding grooves are communicated with the threaded holes, and the limiting mechanism is arranged in the sliding grooves;

can realize utilizing the mutually supporting of mechanism, pivot subassembly, stop gear structure that prevents falling, make prevent falling the device and have the effect of shrink regulation, can make it retrieve under strong condition of strong wind or wind-force, and then reduce and produce continuous rocking because of the influence of wind-force, avoid rocking the high altitude potential safety hazard that drops that appears for a long time.

Further, the drop-preventing mechanism comprises a fixed bottom frame, a first positioning hole, a strut frame, a second positioning hole, a first drop-preventing net, a second drop-preventing net and a positioning inserted rod; the fixed underframe quantity is two, and the symmetric distribution is in the front end of mount, and with pivot subassembly fixed connection, locating hole one quantity is a plurality of, and the equidistance distributes in the one end that fixed underframe kept away from each other, the pillar frame inserts and establishes in fixed underframe, locating hole two quantity is a plurality of, and the equidistance distributes in the outer end of pillar frame, prevent that net one fixed mounting falls between fixed underframe, prevent that net two fixed mounting falls between the pillar frame, the location inserted bar inserts and establishes in locating hole one, and extends to in the fixed underframe.

Furthermore, the fixed underframe is close to one end all excavated and is had the slide, and is located the rear side of preventing net one, prevent net two and slide sliding connection.

Furthermore, the second positioning holes and the first positioning holes are the same in number and correspond to each other.

Furthermore, the second drop preventing net and the first drop preventing net are distributed in a staggered mode.

Further, the limiting mechanism comprises an L-shaped plate, a rotating base, a screw rod, a fixed plate and a rotating rod; the L-shaped plate sliding connection is in the spout, the one end that the rotation base fixed connection is close to the screw hole at the L-shaped plate, the screw rod passes through the screw hole and inserts in the spout, and rotates with the rotation base to be connected, the one end that rotates the base is kept away from at the L-shaped plate is installed to the fixed plate, bull stick fixed connection is at the outer end of fixed plate, and installs in the L-shaped plate, and rotates with the L-shaped plate to be connected.

Further, the initial state of the fixing plate is located at the outer side of the sliding groove.

Compared with the prior art, the utility model has the advantages that:

1. according to the scheme, the anti-falling mechanism, the rotating shaft assembly and the limiting mechanism can be matched with each other, so that the anti-falling device has a shrinkage adjusting effect, the anti-falling device can be recovered under the condition of strong wind or wind force, and further continuous shaking caused by the influence of the wind force is reduced, and the potential safety hazard of high-altitude falling caused by long-term shaking is avoided.

2. In the utility model, the positioning inserting rod is taken out and separated from the first positioning hole, the second positioning hole extends and expands outwards along the fixed bottom frame to enlarge the anti-falling area, and then the post frame is fixed after moving by restoring the positioning inserting rod; when strong wind power appears, retract locating hole two to fixed underframe through taking out the locating inserted bar, insert locating hole two pairs of pillar frame and fixed underframe's position through locating hole two with the locating bar later and fix, then pull fixed underframe and be close to the laminating to the mount, rotatory promotion screw rod drives L template simultaneously and is close to fixed underframe, then when the fixed plate surpasses the forefront of fixed underframe, rotatory fixed plate lets its front end towards fixed underframe, rotate the pull-back with the screw rod at last, drive fixed plate and fixed underframe closely laminate, let fixed underframe obtain the joint fixed, thereby let the whole drawing in of device, make it can effectually resist the influence that reduces wind-force.

3. In the utility model, the length of the strut frame can be freely adjusted when the strut frame extends through the plurality of second positioning holes and the plurality of first positioning holes, and part of the strut frame can be reserved at the outer side of the fixed bottom frame when the strut frame is retracted and folded, so that the effect of preventing the reserved part from falling is achieved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of the anti-falling mechanism of the present utility model;

FIG. 3 is a schematic view of a rear view of a part of the anti-drop mechanism of the present utility model;

fig. 4 is a schematic structural view of a limiting mechanism according to the present utility model.

The reference numerals in the figures illustrate:

the device comprises a fixing frame 1, a threaded hole 11, a sliding groove 12, a mounting hole 2, a falling prevention mechanism 3, a fixed bottom frame 31, a sliding rail 311, a positioning hole 32I, a supporting column frame 33, a positioning hole 34 II, a falling prevention net 35I, a falling prevention net 36 II, a positioning inserting rod 37, a rotating shaft assembly 4, a limiting mechanism 5, a 51L-shaped plate 52, a rotating base 53 screw rod, a 54 fixing plate and a 55 rotating rod.

Detailed Description

Example 1:

referring to fig. 1 to 4, a bridge construction anti-falling device comprises a fixing frame 1, a mounting hole 2, an anti-falling mechanism 3, a rotating shaft assembly 4 and a limiting mechanism 5; the number of the mounting holes 2 is multiple, the mounting holes are uniformly distributed at the outer end of the fixing frame 1, the anti-falling mechanism 3 is mounted at the front end of the fixing frame 1, the rotating shaft assembly 4 is mounted at the lower end of the fixing frame 1 and connected with the anti-falling mechanism 3, two symmetrical threaded holes 11 are formed in one end, far away from the anti-falling mechanism 3, of the fixing frame 1, two symmetrical sliding grooves 12 are cut in the outer end of the fixing frame 1, the sliding grooves 12 are communicated with the threaded holes 11, and the limiting mechanism 5 is arranged in the sliding grooves 12;

the structure of the anti-falling mechanism 3, the rotating shaft assembly 4 and the limiting mechanism 5 can be matched with each other, so that the anti-falling device has the effect of shrinkage adjustment, and can be recovered under the condition of strong wind or wind force, thereby reducing continuous shaking caused by the influence of wind force and avoiding the potential safety hazard of high-altitude falling caused by long-term shaking.

Referring to fig. 2, the anti-falling mechanism 3 includes a fixed bottom frame 31, a first positioning hole 32, a post frame 33, a second positioning hole 34, a first anti-falling net 35, a second anti-falling net 36, and a positioning insert rod 37; the fixed underframe 31 quantity is two, and the symmetric distribution is in the front end of mount 1, and with pivot subassembly 4 fixed connection, the locating hole one 32 quantity is a plurality of, and the equidistance distributes in the one end that fixed underframe 31 kept away from each other, pillar frame 33 inserts and establishes in fixed underframe 31, the locating hole two 34 quantity is a plurality of, and the equidistance distributes in the outer end of pillar frame 33, prevent that net one 35 fixed mounting is between fixed underframe 31, prevent that net two 36 fixed mounting is between pillar frame 33, the locating inserted bar 37 inserts and establishes in locating hole one 32, and extend to in the fixed underframe 31.

Referring to fig. 3, a slide way 311 is cut at each end of the fixed bottom frame 31 close to each other, and is located at the rear side of the first anti-drop net 35, and the second anti-drop net 36 is slidably connected to the slide way 311.

Referring to fig. 2, the second positioning holes 34 and the first positioning holes 32 are the same in number and correspond to each other.

Referring to fig. 2, the second anti-drop net 36 and the first anti-drop net 35 are distributed in a staggered manner.

Referring to fig. 4, the limiting mechanism 5 includes an L-shaped plate 51, a rotating base 52, a screw 53, a fixing plate 54 and a rotating rod 55; the L-shaped plate 51 is slidably connected in the sliding groove 12, the rotating base 52 is fixedly connected at one end of the L-shaped plate 51 close to the threaded hole 11, the screw 53 is inserted into the sliding groove 12 through the threaded hole 11 and is rotationally connected with the rotating base 52, the fixing plate 54 is mounted at one end of the L-shaped plate 51 far away from the rotating base 52, and the rotating rod 55 is fixedly connected at the outer end of the fixing plate 54, mounted in the L-shaped plate 51 and rotationally connected with the L-shaped plate 51.

Referring to fig. 4, the initial state of the fixing plate 54 is located outside the chute 12.

When the positioning device works, the positioning inserting rod 37 is taken out and separated from the first positioning hole 32, the second positioning hole 34 extends outwards along the fixed bottom frame 31 to enlarge the anti-falling area, and then the post frame 33 is fixed after being moved by the restoration positioning inserting rod 37; when strong wind force occurs, the second positioning hole 34 is retracted into the fixed bottom frame 31 by taking out the positioning inserting rod 37, then the first positioning inserting rod 37 is reinserted into the first positioning hole 32 to penetrate through the second positioning hole 34 to fix the positions of the support frame 33 and the fixed bottom frame 31, then the fixed bottom frame 31 is pulled to be close to the fixing frame 1, meanwhile, the L-shaped plate 51 is driven to be close to the fixed bottom frame 31 by the rotating pushing screw 53, then when the fixing plate 54 passes through the forefront end of the fixed bottom frame 31, the fixing plate 54 is rotated to face the front end of the fixed bottom frame 31, finally the screw 53 is rotated to be pulled back, the fixing plate 54 is driven to be closely attached to the fixed bottom frame 31, and the fixed bottom frame 31 is clamped and fixed, so that the whole device is folded, and the influence of wind force can be effectively resisted;

the length of the strut frame 33 can be freely adjusted when the strut frame is extended through the plurality of second positioning holes 34 and the first positioning holes 32, and when the strut frame is retracted and folded, part of the strut frame 33 is reserved on the outer side of the fixed bottom frame 31, so that the effect of preventing the reserved part from falling is achieved.

The above; is only a preferred embodiment of the present utility model; the scope of the utility model is not limited in this respect; any person skilled in the art is within the technical scope of the present disclosure; equivalent substitutions or changes are made according to the technical proposal of the utility model and the improved conception thereof; are intended to be encompassed within the scope of the present utility model.

Claims

1. The utility model provides a bridge construction prevents device that falls which characterized in that: comprises a fixing frame (1), a mounting hole (2), an anti-falling mechanism (3), a rotating shaft component (4) and a limiting mechanism (5); the utility model discloses a fixed frame, including mount (1) and fixed frame, mounting hole (2) quantity is a plurality of, and evenly distributed at the outer end of mount (1), prevent that falling mechanism (3) are installed in the front end of mount (1), pivot subassembly (4) are installed in the lower extreme of mount (1), and are connected with preventing falling mechanism (3), the one end that falling mechanism (3) was kept away from to mount (1) is provided with two symmetrical screw holes (11), the outside end of mount (1) has excavated two symmetrical spout (12), spout (12) are linked together with screw hole (11), stop gear (5) set up in spout (12).

2. The bridge construction anti-drop device according to claim 1, wherein: the drop prevention mechanism (3) comprises a fixed bottom frame (31), a first positioning hole (32), a strut frame (33), a second positioning hole (34), a first drop prevention net (35), a second drop prevention net (36) and a positioning inserting rod (37); the fixed underframe (31) quantity is two, and the symmetric distribution is in the front end of mount (1), and with pivot subassembly (4) fixed connection, locating hole one (32) quantity is a plurality of, and equidistant distribution is in the one end that fixed underframe (31) kept away from each other, pillar frame (33) are inserted and are established in fixed underframe (31), locating hole two (34) quantity is a plurality of, and equidistant distribution is in the outer end of pillar frame (33), prevent net one (35) fixed mounting between fixed underframe (31), prevent net two (36) fixed mounting between pillar frame (33), location inserted bar (37) are inserted and are established in locating hole one (32), and extend to in fixed underframe (31).

3. The bridge construction anti-falling device according to claim 2, wherein: the fixed underframe (31) is provided with a slide way (311) at one end close to each other, and is positioned at the rear side of the first anti-drop net (35), and the second anti-drop net (36) is in sliding connection with the slide way (311).

4. The bridge construction anti-falling device according to claim 2, wherein: the number of the second positioning holes (34) is the same as that of the first positioning holes (32), and the second positioning holes and the first positioning holes are corresponding to each other.

5. The bridge construction anti-falling device according to claim 2, wherein: the second anti-drop net (36) and the first anti-drop net (35) are distributed in a staggered manner.

6. The bridge construction anti-drop device according to claim 1, wherein: the limiting mechanism (5) comprises an L-shaped plate (51), a rotating base (52), a screw (53), a fixed plate (54) and a rotating rod (55); the L-shaped plate (51) is slidably connected in the sliding groove (12), the rotating base (52) is fixedly connected at one end, close to the threaded hole (11), of the L-shaped plate (51), the screw (53) is inserted into the sliding groove (12) through the threaded hole (11) and is rotationally connected with the rotating base (52), the fixing plate (54) is installed at one end, far away from the rotating base (52), of the L-shaped plate (51), and the rotating rod (55) is fixedly connected at the outer end of the fixing plate (54) and is installed in the L-shaped plate (51) and is rotationally connected with the L-shaped plate (51).

7. The bridge construction anti-drop device according to claim 6, wherein: the initial state of the fixing plate (54) is located outside the sliding groove (12).