Central dividing strip anti-falling device for bridge construction
By designing an adjustable length anti-falling device, the problem of cumbersome construction of fall-falling devices in the prior art is solved, and the effect of simplified construction and stable support is achieved, ensuring construction safety.
Patent Information
- Application Number
- CN202422562635.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-23
AI Technical Summary
During the construction of existing bridges, the anti-falling device of the central partition belt is cumbersome and cannot adjust the width according to the construction environment, so it cannot provide stable rigid support and anti-falling effect.
An adjustable length anti-fall device is designed. Through the splicing of the anti-fall tab and the adjustment tab, it is locked by fasteners to form an anti-fall surface that is adapted to the span of the central partition belt, and optional reinforcement tabs can be used to enhance the support strength.
The construction process of the anti-fall device is simplified, rigid support is provided, items are prevented from falling, and construction personnel are safe without the need for additional guardrails.
Smart Images
Figure CN223255861U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bridge construction protection devices, and in particular relates to a central dividing strip anti-falling device used in bridge construction. Background Art
[0002] Highway bridges are usually designed with separate left and right sections, that is, the lanes on both sides are actually two independent bridges, and the gap between the left and right sections is the central dividing strip. During the construction of the bridge, construction workers often need to move back and forth between the left and right sections and pass items. In the existing technology, in order to prevent items from falling, an anti-fall net is usually set up in the central dividing strip area; but the anti-fall net has limited load-bearing capacity and cannot serve as a rigid plane to support construction workers to stand steadily, so an anti-fall guardrail needs to be set up around the anti-fall net to prevent construction workers from approaching. The installation process of this separate anti-fall device is relatively cumbersome, and the width of the anti-fall net cannot be adjusted according to the construction environment. Utility Model Content
[0003] The utility model provides an anti-falling device whose length can be adjusted according to the span of the central dividing strip, and can also simplify the construction process of the existing anti-falling device.
[0004] The utility model is achieved through the following technical solutions:
[0005] A central median anti-fall device, characterized by comprising:
[0006] The anti-falling piece includes a plurality of anti-falling baffles arranged at intervals; the anti-falling piece is also provided with an external adjustment hole group;
[0007] The adjusting plate includes a plurality of supplementary baffles arranged at intervals; the adjusting plate is also provided with an internal adjusting hole group;
[0008] The anti-falling plate and the adjusting plate are spliced together by aligning the outer adjustment hole group with the inner adjustment hole group and locking them with fasteners;
[0009] The two ends of the anti-falling piece are respectively spliced with one adjustment piece, and different alignment positions of the outer adjustment hole group and the inner adjustment hole group correspond to different splicing lengths.
[0010] The utility model can adapt the length of the device to the span of the central dividing strip by adjusting the splicing position of the anti-falling plate and the adjusting plate.
[0011] Preferably, the anti-fall plates are provided with sliding grooves extending in the direction of splicing and expansion, and the adjustment plates are provided with sliding portions adapted to the sliding grooves. The sliding portions are nested in the sliding grooves during splicing. The engagement between the sliding grooves and the sliding portions not only enhances the stability of the splicing through the snap-fit relationship, but also provides guidance for the splicing and expansion operation.
[0012] Preferably, at least part of the supplementary baffles is arranged in the gap between two adjacent anti-fall baffles.
[0013] Preferably, the outer adjustment hole group is opened on the sliding groove, and the inner adjustment hole group is opened on the sliding part.
[0014] Preferably, the width of the supplementary baffle is greater than or equal to the spacing of the anti-falling baffles. After being spliced, the supplementary baffles and the anti-falling baffles fill the gaps between each other to form a complete anti-falling surface, which can also intercept small objects that fall.
[0015] Preferably, the anti-fall baffles have a width and spacing adapted to the hole spacing of the outer adjustment hole group, so as to ensure that the supplementary baffles are located in the gap between two adjacent anti-fall baffles in each alignment position. This ensures that in any splicing and locking position, the supplementary baffles and the anti-fall baffles can maintain a state of filling the gap with each other.
[0016] Preferably, the anti-fall device includes a reinforcement plate, which includes a number of reinforcement baffles arranged at intervals and is provided with a connecting hole group; the anti-fall plate and the reinforcement plate are spliced by aligning the external adjustment hole group with the connecting hole group and locking them with fasteners.
[0017] Preferably, the reinforcement sheet is spliced between the adjustment sheets at both ends.
[0018] Preferably, the reinforcement baffle is arranged in the gap between two adjacent anti-fall baffles.
[0019] The above-mentioned reinforcement plate is used for working conditions when the width of the central dividing strip is large. At this time, the adjustment range of the adjustment plate to both sides is large, and the connection between the anti-fall plate and the adjustment plate, as well as the supporting strength of the anti-fall plate itself are reduced; in order to reduce the probability of accidents, a reinforcement plate is provided to strengthen the supporting strength of the structure by filling; at the same time, since the adjustment plate is adjusted to both sides, the anti-fall baffle gap in the middle of the anti-fall plate has no supplementary baffle to block it, and the reinforcement plate also plays a role in supplementing the interception of falling objects.
[0020] Preferably, the adjustment plates at both ends of the anti-falling piece are respectively laid on the bridge deck on both sides of the central dividing strip, and multiple groups of the anti-falling devices are placed in parallel.
[0021] Compared with the prior art, the present invention provides an adjustable anti-fall device that is easy to build. The supplementary baffle of the adjustment plate is aligned with the gap of the anti-fall baffle on the anti-fall plate. When the two are assembled, a complete anti-fall plane is formed to prevent items from falling. At the same time, the plane can provide rigid support. If construction workers drop items, they can enter the baffle to pick them up; if construction workers accidentally step on them, they can also leave quickly, so there is no need to build guardrails to prevent construction workers from approaching. In addition, the present invention defines the locking position of the splicing, so that the anti-fall device has a uniform length while matching central dividing strips of different spans. When multiple groups are used, they can be neatly placed at the same length to clearly define the area division of the construction site. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 is a schematic diagram of the anti-falling component;
[0023] Figure 2 Schematic diagram of the splicing of the anti-fall plate and a single adjustment plate;
[0024] Figure 3 Schematic diagram of the reinforcing sheet.
[0025] Legend
[0026] 1. Anti-fall plate; 1.1. Anti-fall baffle; a. Anti-fall baffle width; b. Spacing between adjacent anti-fall baffles; 1.2. Sliding groove; 1.3. External adjustment hole group; n. Spacing between external adjustment hole groups;
[0027] 2. Adjustment plate; 2.1. Supplementary baffle; x, width of the supplementary baffle; y, spacing between adjacent supplementary baffles; 2.2, sliding portion; 2.3, internal adjustment hole group;
[0028] 3. Reinforcement plate; 3.1. Reinforcement baffle; 3.2. Connecting part; 3.3. Connecting hole group;
[0029] 4. Fasteners. DETAILED DESCRIPTION
[0030] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Based on these descriptions, a person skilled in the art will be able to implement the present invention. Furthermore, the embodiments of the present invention described below generally represent only a portion of the present invention, rather than all of the embodiments. Therefore, all other embodiments derived by a person skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.
[0031] See Figure 1The anti-fall plate 1 has anti-fall baffles 1.1 arranged parallel to each other on its surface. The width of the anti-fall baffles 1.1 is a, and the spacing between adjacent anti-fall baffles 1.1 is b. The sum of the width and spacing is a + b. The anti-fall plate 1 has a sliding groove 1.2 on each side. In this embodiment, the sliding groove 1.2 is an inward-opening C-shaped groove. The sliding groove 1.2 defines a set of external adjustment holes 1.3, with the spacing between the external adjustment holes 1.3 being n. The sum of the width and spacing of the anti-fall baffles matches the spacing of the external adjustment holes, i.e., n = a + b.
[0032] See Figure 2 The surface of the adjustment plate 2 is parallel to the supplementary baffles 2.1. The width of the supplementary baffles 2.1 is x, and the spacing between adjacent supplementary baffles is y. The sum of the width and spacing of the supplementary baffles 2.1 is x+y. The sum of the width and spacing of the supplementary baffles is adapted to the sum of the width and spacing of the anti-fall baffles, that is, it has the quantitative relationship of x+y=a+b. In some embodiments, the width x of the supplementary baffles 2.1 is equal to the spacing b of the anti-fall baffles; in other embodiments, the width x of the supplementary baffles 2.1 is greater than the spacing b of the anti-fall baffles. There is a sliding part 2.2 on each side of the adjustment plate 2. In this embodiment, the sliding part 2.2 is a C-shaped groove that opens in the same direction as the sliding groove 1.2 but is slightly smaller in size, and can just fit into the sliding groove 1.2 and slide therein. An inner adjustment hole group 2.3 is provided on the sliding part 2.2, and the spacing of the inner adjustment hole group 2.3 is the same as the spacing n between the outer adjustment hole groups 1.3.
[0033] See Figure 3 , the surface of the reinforcing sheet 3 is arranged parallel to the reinforcing baffles 3.1, and the sum of the width and spacing of the reinforcing baffles 3.1 is also adapted to the sum of the width and spacing of the anti-falling baffles. There are connecting parts 3.2 on both sides of the reinforcing sheet 3. In this embodiment, the connecting part 3.2 is a C-shaped groove that opens in the same direction as the sliding groove 1.2 but is slightly smaller in size, and can also be nested by the sliding groove 1.2. A connecting hole group 3.3 is provided on the connecting part 3.2, and the spacing of the connecting hole group 3.3 is the same as the spacing n between the outer adjustment hole groups 1.3. The reinforcing sheet 3 has different length specifications. When the anti-falling sheet 1 and the adjustment sheet 2 have the maximum splicing length, there is no adapted adjustment baffle 2.1 below the anti-falling baffle 1.1 in the middle section of the anti-falling sheet 1; at this time, a reinforcing sheet 3 with an adapted length can be added between the two adjustment sheets 2, and the gap between the reinforcing baffle 3.1 and the anti-falling baffle 1.1 is aligned to intercept falling objects.
[0034] See Figure 2, each set of anti-fall devices includes at least a single anti-fall piece 1 and a pair of adjustment pieces 2. Before use, construction workers must first obtain the span of the central dividing strip according to the engineering blueprint and preliminarily determine the telescopic length of the required anti-fall device. During assembly, an adjustment piece 2 is installed at each end of the anti-fall piece 1. First, align the sliding part 2.2 of the adjustment piece 2 with the sliding groove 1.2 of the anti-fall piece 1, and then insert the adjustment piece 2 into the anti-fall piece 1. The sliding groove 1.2 guides the sliding part 2.2 to slide in the anti-fall piece 1. According to the predetermined telescopic length, align the outer adjustment hole group 1.3 with the inner adjustment hole group 2.3 at the corresponding splicing position, and pass the fastener 4 through the two to complete the splicing. Since the supplementary baffle 2.1 is exactly in the gap of the anti-fall baffle 1.1, and the width of the supplementary baffle 2.1 is greater than or equal to the spacing of the anti-fall baffle 1.1, the two are spliced together to form a complete anti-fall surface, which effectively prevents falling objects from high altitude. To accommodate central dividers of varying spans, the adjustment plate 2 and anti-drop plate 1 can be adjusted to different splicing positions and then locked. Since the sum of the supplementary baffle width x and the supplementary baffle spacing y, the sum of the anti-drop baffle width a and the anti-drop baffle spacing b, and the spacing n of the outer adjustment hole groups have the quantitative relationship x+y=a+b=n, the supplementary baffle 2.1 can be aligned with the gap of the anti-drop baffle 1.1 at each splicing and locking position. In an alternative embodiment, if a reinforcement plate 3 is required, the connecting portion 3.2 of the reinforcement plate 3 is first inserted into the sliding groove 1.2, pushed to the middle of the anti-drop plate 1, and locked with the fastener 4 before the adjustment plate 2 is installed.
Claims
1. A central median anti-fall device for bridge construction, characterized in that: include: An anti-falling plate (1) comprising a plurality of anti-falling baffles (1.1) arranged at intervals, wherein the anti-falling plate (1) is further provided with an external adjustment hole group (1.3); An adjusting plate (2) comprising a plurality of supplementary baffles (2.1) arranged at intervals, the adjusting plate (2) further comprising an inner adjusting hole group (2.3); The anti-falling plate (1) and the adjusting plate (2) are spliced together by aligning the outer adjusting hole group (1.3) with the inner adjusting hole group (2.3) and locking them with a fastener (4); An adjustment piece (2) is spliced onto each of the two ends of the anti-falling piece (1), and different alignment positions of the outer adjustment hole group (1.3) and the inner adjustment hole group (2.3) correspond to different splicing lengths.
2. The anti-fall device according to claim 1, characterized in that The anti-falling plates (1) are provided with sliding grooves (1.2) extending in a splicing telescopic direction in parallel, and the adjusting plates (2) are provided with sliding portions (2.2) adapted to the sliding grooves (1.2) in parallel. When spliced, the sliding portions (2.2) are nested in the sliding grooves (1.2).
3. The anti-fall device according to claim 2, characterized in that: The outer adjustment hole group (1.3) is opened on the sliding groove (1.2), and the inner adjustment hole group (2.3) is opened on the sliding part (2.2).
4. The anti-fall device according to claim 1, characterized in that At least part of the supplementary baffles (2.1) is arranged in the gap between two adjacent anti-fall baffles (1.1).
5. The anti-fall device according to claim 4, characterized in that: The width of the supplementary baffle (2.1) is greater than or equal to the spacing (b) between adjacent anti-fall baffles (1.1).
6. The anti-fall device according to claim 4, characterized in that: The anti-fall baffle (1.1) has a width (a) and a spacing (b) adapted to the hole spacing of the outer adjustment hole group (1.3), so as to ensure that the supplementary baffle (2.1) is located in the gap between two adjacent anti-fall baffles (1.1) in each alignment position.
7. The anti-fall device according to claim 1, characterized in that: The invention comprises a reinforcement sheet (3), wherein the reinforcement sheet (3) comprises a plurality of reinforcement baffles (3.1) arranged at intervals and is provided with a connection hole group (3.3); the anti-fall sheet (1) and the reinforcement sheet (3) are spliced by aligning the outer adjustment hole group (1.3) with the connection hole group (3.3) and locking them with a fastener (4).
8. The anti-fall device according to claim 7, characterized in that: The reinforcing piece (3) is spliced between the adjusting pieces (2) at both ends.
9. The anti-fall device according to claim 7, characterized in that: The reinforcing baffle (3.1) is arranged in the gap between two adjacent anti-fall baffles (1.1).
10. The anti-fall device according to claim 1, characterized in that: The adjustment pieces (2) at both ends of the anti-falling piece (1) are respectively laid on the bridge deck on both sides of the central dividing strip, and multiple groups of the anti-falling devices are placed in parallel.