Liquid oxygen gas energy blast safety protection device close to expressway
By designing a liquid oxygen energy blasting safety protection device with a multi-layered interception net and PC endurance board, the problem of damage to buildings by flying rocks and shock waves during blasting operations was solved, achieving a more efficient safety protection effect.
Patent Information
- Application Number
- CN202520748734.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-04-21
AI Technical Summary
During highway reconstruction and expansion, flying rocks and shock waves generated during blasting operations can easily damage surrounding buildings, and existing protective devices are unable to effectively intercept and absorb the shock waves.
A liquid oxygen energy explosion safety protection device was designed, which includes a support frame, a front interception net, a middle interception net, and a rear interception net. It utilizes the elastic deformation of the multi-layer interception net and PC endurance board to absorb the shock wave, and combines flexible buffer airbags and reinforcing ribs to provide multi-layer protection.
It significantly improves the ability to intercept flying rocks and shock waves, reduces the destructive power to the surrounding environment, and ensures construction safety and project quality.
Smart Images
Figure CN224681439U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the expressway engineering safety technical field, specifically, relate to a liquid oxygen gas energy blast safety protection device close to expressway. BACKGROUND
[0002] At present, with the sustained and rapid development of China's economy, in order to adapt to the demand of the rapid development of harmonious society on road traffic, China's expressway construction industry goes into the period of vigorous development. In addition to building a batch of expressways, the initial construction of expressways also faces the problem of widening and traffic safety guarantee in construction to meet the rapid demand of traffic volume. Therefore, it is required to ensure the safety and smoothness of expressway operation in expressway reconstruction and expansion construction, and to ensure the safety of construction personnel and machinery and engineering quality, and the selection of reasonable traffic organization implementation scheme is the basic guarantee for the smooth implementation of reconstruction and expansion engineering.
[0003] Among them, because the blasting method construction technology has the characteristics of high construction efficiency, fast construction speed, small labor consumption and low engineering cost, therefore, it has very wide application in mountainous area expressway slope excavation construction. However, in the blasting construction position, there are mostly rural roads, residential buildings and other buildings, and small flying stones, shock waves and large rolling stones are produced in the process of high slope blasting excavation construction, which can cause damage to the surrounding buildings.
[0004] Therefore, it is necessary to provide a protection device combining steel and soft to reduce the damage to the surrounding buildings caused by flying stones and rolling stones in the blasting construction process. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims at providing a liquid oxygen gas energy blast safety protection device close to expressway, which can effectively intercept flying stones produced in the blasting process and absorb shock waves, and improve the performance and reliability of the liquid oxygen gas energy blast safety protection device close to expressway.
[0006] The embodiment of the utility model realizes the following technical scheme: a liquid oxygen gas energy blast safety protection device close to expressway, comprising: a support frame, a front interception net, a middle interception net and a rear interception net;
[0007] The front interception net, the middle interception net and the rear interception net are sequentially arranged on the support frame, and the front interception net faces the blasting position;
[0008] One side of the middle interception net facing the front interception net is provided with a plurality of PC resistance plates, the surface of the PC resistance plate is provided with an expansion gap, and the width of the expansion gap is smaller than the aperture of the front interception net;
[0009] The distance between the rear intercepting net and the middle intercepting net is smaller than the distance between the front intercepting net and the middle intercepting net.
[0010] Further, the front intercepting net comprises an inner layer wire mesh and an outer layer wire mesh, a barrier gap is arranged between the inner layer wire mesh and the outer layer wire mesh, and an elastic connecting piece is arranged between the inner layer wire mesh and the outer layer wire mesh.
[0011] Further, the surface of the PC endurance plate towards the blasting side is recessed towards the center.
[0012] Further, a breaking cone is arranged at the recessed center of the PC endurance plate.
[0013] Further, a flexible buffer air bag is arranged on the side of the middle intercepting net towards the rear intercepting net.
[0014] Further, a sound insulation felt layer is arranged on the surface of the PC endurance plate.
[0015] Further, a reinforcing rib is arranged on the rear intercepting net, and the reinforcing rib is used for abutting against the middle intercepting net.
[0016] The technical scheme of the utility model has at least the following advantages and beneficial effects:
[0017] 1. The utility model discloses a three-layer intercepting net, wherein the front intercepting net is used for intercepting flying stones and preliminarily buffering blasting impact and absorbing part of energy, the middle intercepting net disperses stress wave further through the elastic deformation of the PC endurance plate, and the rear intercepting net and the support frame are protected, the rear intercepting net provides secondary protection, ensures the stability of the overall structure, and significantly improves the performance and reliability of the liquid oxygen gas energy blasting safety protection device close to the expressway.
[0018] 2. The utility model discloses a breaking cone arranged at the center of the PC endurance plate, when the stones hit the surface of the PC endurance plate, the breaking cone can damage the structure of the stones, and large stones are broken into small stone pieces, which is beneficial to reducing the damage of the stones to the surrounding environment. DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the utility model, the following will briefly introduce the drawings needed in the embodiment, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as the limitation to the scope, and for the ordinary skilled in the art, other related drawings can be obtained without the creative labor on the premise.
[0020] Figure 1 It is the overall structure schematic diagram of the utility model;
[0021] Figure 2 Figure 1 is a partial structural schematic view of the front intercept net structure in the utility model;
[0022] Figure 3 Figure 2 is a partial structural schematic view of the middle intercept net structure in the utility model;
[0023] Figure 4 Figure 3 is a partial structural schematic view of the rear intercept net structure in the utility model.
[0024] Icon: 1, support frame; 11, spring; 2, front intercept net; 21, inner layer steel wire net; 22, outer layer steel wire net; 23, elastic connecting piece; 3, middle intercept net; 31, PC reinforced board; 32, connecting hook; 33, expansion gap; 34, broken cone; 35, soundproof felt layer; 36, flexible buffer air bag; 4, rear intercept net; 41, reinforcing rib. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.
[0027] EMBODIMENT
[0028] The following will be further described in combination with specific embodiments, referring to Figures 1-4 The utility model is a liquid oxygen gas energy blasting safety protection device close to a highway, referring to Figure 1 , comprising a support frame 1, a front intercept net 2, a middle intercept net 3 and a rear intercept net 4. Among them, the front intercept net 2, the middle intercept net 3 and the rear intercept net 4 are set from near to far towards the blasting position. The edges of the front intercept net 2, the middle intercept net 3 and the rear intercept net 4 are connected through the spring 11 between the support frame 1.
[0029] Referring to Figure 2The front interception net 2 includes an inner wire mesh 21 and an outer wire mesh 22. The inner and outer wire meshes 21 and 22 are parallel to each other, and their mesh openings are staggered. A 10cm wide barrier gap is provided between the inner and outer wire meshes 21 and 22. An elastic connector 23, which can be a spring or an elastic rope, connects the inner and outer wire meshes 21 and 22.
[0030] Reference Figure 1 and Figure 3 The central interceptor net 3 is arranged parallel to the front interceptor net 2, and the mesh size of the central interceptor net 3 is smaller than that of the front interceptor net 2. Multiple PC endurance boards 31 are detachably installed on the side of the central interceptor net 3 facing the front interceptor net 2. Specifically, connecting hooks 32 are provided along the edges of the PC endurance boards 31, and these hooks are hooked onto the central interceptor net 3. Expansion gaps 33 are pre-drilled on the surface of the PC endurance boards 31, and the width of the expansion gaps 33 is smaller than the mesh size of the front interceptor net 2. The side of the PC endurance boards 31 facing the front interceptor net 2 is recessed, and a breaking cone 34, made of metal, is protruding from the center of the recess. A sound-insulating felt layer 35 is also provided on the surface of the PC endurance boards 31 to reduce noise when gravel impacts the PC endurance boards 31. Multiple flexible buffer airbags 36 are provided on the side of the central interception net 3 facing the rear interception net 4, and the multiple flexible buffer airbags 36 are evenly distributed on the surface of the central interception net 3.
[0031] Reference Figure 4 The distance between the rear interceptor net 4 and the middle interceptor net 3 is less than the distance between the middle interceptor net 3 and the front interceptor net 2. The mesh size of the rear interceptor net 4 is smaller than that of the front interceptor net 2. A reinforcing rib 41 is provided on the side of the rear interceptor net 4 facing the middle interceptor net 3, and the reinforcing rib 41 is arranged in a horizontal direction. When the debris impacts the surface of the PC endurance board 31, the reinforcing rib 41 and the flexible buffer airbag 36 abut against each other, further dispersing the explosive impact force.
[0032] The working process of this embodiment is as follows: The support frame 1 is placed beside the area to be blasted, with the front intercepting net 2, middle intercepting net 3, and rear intercepting net 4 facing the blasting position in sequence. The front intercepting net 2, middle intercepting net 3, and rear intercepting net 4 are respectively connected to the support frame 1 via springs 11.
[0033] When the blasted rock fly toward the support frame 1, the large rock is firstly intercepted by the front intercept net 2, and the impact wave of blasting is preliminarily buffered. The rock passing through the front intercept net 2 is intercepted by the middle intercept net 3, and the rock is impacted with the PC endurance plate 31, the rock is broken by the breaking cone 34, and the volume of the rock is reduced. The PC endurance plate 31 plays the buffering, sound insulation and light transmission roles of the core. The PC endurance plate 31 and the flexible buffering air bag 36 can absorb and disperse the stress wave generated by blasting. The rear intercept net 4 further intercepts the flying rock which can penetrate the PC endurance plate 31, and supports the PC endurance plate 31 together with the middle intercept net 3, and prevents the PC endurance plate 31 from being deformed or damaged due to the blasting impact.
[0034] The preferred embodiments of the present application have been described above, but the present application is not limited to the above. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A safety protection device for liquid oxygen energy explosions located adjacent to highways, characterized in that, include: Support frame (1), front interception net (2), middle interception net (3) and rear interception net (4); The front interception net (2), the middle interception net (3) and the rear interception net (4) are sequentially arranged on the support frame (1), with the front interception net (2) facing the blasting position; The middle intercepting net (3) is provided with multiple PC endurance boards (31) on the side facing the front intercepting net (2). The surface of the PC endurance board (31) is provided with expansion gaps (33), and the width of the expansion gaps (33) is smaller than the aperture of the front intercepting net (2). The distance between the rear interceptor net (4) and the middle interceptor net (3) is less than the distance between the front interceptor net (2) and the middle interceptor net (3).
2. The liquid oxygen energy explosion safety protection device adjacent to a highway as described in claim 1, characterized in that: The front interception net (2) includes an inner wire mesh (21) and an outer wire mesh (22). A barrier gap is provided between the inner wire mesh (21) and the outer wire mesh (22). An elastic connector (23) is provided between the inner wire mesh (21) and the outer wire mesh (22).
3. The liquid oxygen energy explosion safety protection device adjacent to a highway as described in claim 1, characterized in that: The surface of the PC endurance board (31) facing the blast side is concave towards the center.
4. The liquid oxygen energy explosion safety protection device adjacent to a highway as described in claim 3, characterized in that: A breaking cone (34) is provided at the recessed center of the PC endurance board (31).
5. The liquid oxygen energy explosion safety protection device adjacent to a highway as described in claim 1, characterized in that: The central interceptor net (3) is provided with a flexible buffer airbag (36) on the side facing the rear interceptor net (4).
6. The liquid oxygen energy explosion safety protection device adjacent to a highway as described in claim 1, characterized in that: The surface of the PC endurance board (31) is provided with a sound insulation felt layer (35).
7. The liquid oxygen energy explosion safety protection device adjacent to a highway as described in claim 1, characterized in that: The rear intercepting net (4) is provided with reinforcing ribs (41), which are used to abut against the middle intercepting net (3).