Protective device for plant foundation blasting

Abstract

The utility model discloses a protective device for factory building foundation blasting belongs to the blast protection technical field, and its characterized in that contains first fixed rope and second fixed rope, and the both ends of first fixed rope and second fixed rope are fixed in the lateral portion of the wall body in factory building, and the mesh protective structure is set between first fixed rope and second fixed rope, and the mesh protective structure is fixed between first fixed rope and second fixed rope through annular buckle. Compared with prior art, the core of the utility model lies in setting two fixed ropes on the basis of the existing wall body of factory building, fixing the mesh protective structure on the fixed rope, forming the composite barrier of " space partition dynamic isolation + key equipment rigid bracket " through the flexible partition wall of mesh protective structure, can accurate control the fly rock impact distance in 5m warning line, and simultaneously, through the mesh protective structure, intercepts and cleans the dust, significantly improves the prevention and control effect of fly rock and dust, constructs the safe working environment.

Description

Technical Field

[0001] This utility model belongs to the field of blasting protection technology, and in particular relates to a protective device for blasting of factory foundations. Background Technology

[0002] During the construction of the pumped storage power station installation area, the blasting operation in the foundation pit faces the dual challenges of controlling flying rocks and dust. The impact of flying rocks and the spread of dust not only threaten the safety of personnel and equipment at the construction site, but also seriously affect the smooth progress of subsequent key processes, such as the precise hoisting of bridge cranes and the construction of high-grade emery flooring.

[0003] In the prior art, Chinese Patent Publication No. CN 107782583 B discloses a flexible adjustable blasting fly rock protection net, which includes a protection net, which is composed of mesh panels connected by movable hinges; a buffer steel wire rope is connected to each of the four ends of the protection net, and a counterweight bag is provided at the end of the buffer steel wire rope. The mesh of the protection net is formed by steel wire rope connected by cross buckles. It cannot effectively block fly rocks and dust, and the counterweight bags at the four ends of the protection net make transportation inconvenient and have a low recycling rate.

[0004] Therefore, in order to solve the above problems, it is particularly urgent and important to design a protective device for factory foundation blasting. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and design a protective device for blasting of factory foundations. This protective device for blasting of factory foundations has a simple structure and is easy to install; it solves the dual problems of controlling flying rocks and dust in existing foundation pit blasting operations.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A protective device for blasting factory foundations.

[0008] Its features are,

[0009] It includes a first fixing rope and a second fixing rope, both ends of which are fixed to the side of the wall inside the factory building.

[0010] A mesh protective structure is provided between the first fixing rope and the second fixing rope.

[0011] The mesh protective structure is fixed between the first and second fixing ropes by a ring buckle.

[0012] As a preferred embodiment of this utility model

[0013] The first fixing rope and the second fixing rope have the same structure.

[0014] The first fixing rope has a first hook connected to both ends.

[0015] The first hook is threadedly connected to a tensioner.

[0016] The tightener is threadedly connected to a second hook.

[0017] The second hook is fixed to the side of the wall inside the factory building by an expansion hook.

[0018] As a preferred embodiment of this utility model

[0019] Multiple ring-shaped buckles are provided, and the distance between two adjacent ring-shaped buckles is 70cm.

[0020] Both the first and second fixing ropes are provided with fixing sections corresponding to the annular buckles.

[0021] As a preferred embodiment of this utility model

[0022] The mesh protective structure uses a double-layer flame-retardant dense mesh.

[0023] As a preferred embodiment of this utility model

[0024] Both the first fixing rope and the second fixing rope are made of steel wire rope.

[0025] As a preferred embodiment of this utility model

[0026] The diameter of both the first and second fixing ropes is 8mm.

[0027] As a preferred embodiment of this utility model

[0028] The mesh protective structure is fixed between the first and second fixing ropes by spring buckles.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. This utility model relates to a protective device for factory foundation blasting. The core of the device lies in fixing a mesh protective structure to two fixed ropes installed on the existing factory walls. The flexible partition formed by the mesh protective structure creates a composite barrier of "dynamic spatial isolation + rigid support for key equipment," precisely controlling the impact distance of flying rocks within a 5-meter warning line and ensuring 100% equipment integrity. Simultaneously, the mesh protective structure intercepts and removes dust, significantly improving the control of flying rocks and dust, and creating a safe working environment.

[0031] In addition, during installation, the expansion hook is first fixed, and then the second hook of the fixing rope is put into the expansion hook to complete the installation. The installation is relatively quick and convenient, and it is easy to quickly set up and dismantle, making the construction convenient and efficient.

[0032] 2. The mesh protective structure and fixing ropes are detachably connected by ring buckles. They can be disassembled at any time after use for reuse, making the materials recyclable, reducing construction costs, and providing a replicable and low-cost innovative structure for blast protection in similar underground projects. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of one embodiment of a protective device for factory foundation blasting proposed in this utility model;

[0034] Figure 2 This is a schematic diagram of one embodiment of a protective device for factory foundation blasting proposed in this utility model;

[0035] Figure 3 This utility model proposes a protective device for factory foundation blasting. Figure 2 A schematic diagram of point A in the middle.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. First fixing rope,

[0038] 2. Second fixing rope,

[0039] 3. Mesh protective structure,

[0040] 4. Ring buckle,

[0041] 5. First hook,

[0042] 6. Tightener

[0043] 7. Second hook,

[0044] 8. Expansion hook,

[0045] 9. Fixed section,

[0046] 12. Walls

[0047] 13. Expansion bolts. Detailed Implementation

[0048] The specific embodiments of this utility model are described below with reference to the accompanying drawings and examples:

[0049] It should be noted that the structures, colors, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0050] Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0051] like Figures 1-3 As shown, the protective device for blasting the foundation of a factory building according to this utility model includes a first fixing rope 1 and a second fixing rope 2. Both ends of the first fixing rope 1 and the two ends of the second fixing rope 2 are fixed to the side of the wall 12 inside the factory building. A mesh protective structure 3 is provided between the first fixing rope 1 and the second fixing rope 2. The mesh protective structure 3 is fixed between the first fixing rope 1 and the second fixing rope 2 by a ring buckle 4.

[0052] By installing two fixed ropes on the existing wall 12 of the factory building, the mesh protective structure 3 is fixed to the fixed ropes. The flexible partition formed by the mesh protective structure 3 creates a composite barrier of "dynamic isolation of spatial partitions + rigid brackets for key equipment". This can accurately control the impact distance of flying stones within the 5-meter warning line, ensuring that the equipment integrity rate reaches 100%. At the same time, the mesh protective structure 3 intercepts and cleans up dust, significantly improving the control effect of flying stones and dust, and creating a safe working environment.

[0053] In addition, the mesh protective structure 3 is fixed to the fixing rope by the ring buckle 4, so that the mesh protective structure 3 and the fixing rope are detachably connected, can be placed and transported separately, and can also replace the faulty parts individually.

[0054] This device adopts a modular structure, anchoring the mesh protection structure 3 to the upstream and downstream rock wall beams via two fixing ropes. Installation is quick and convenient, facilitating rapid assembly and disassembly, resulting in efficient and convenient construction. The mesh protection structure 3 and the fixing ropes are detachably connected via ring buckles 4, allowing for easy disassembly after use and reuse, thus enabling material recycling, reducing construction costs, and providing a replicable, low-cost innovative structure for blast protection in similar underground engineering projects.

[0055] The first fixing rope 1 and the second fixing rope 2 have the same structure. One is used to fix the top of the mesh protective structure 3, and the other is used to fix the bottom of the mesh protective structure 3. Both of them use the same structure to support the mesh protective structure 3.

[0056] Both ends of the first fixing rope 1 are connected to the first hook 5. The first hook 5 is threaded to the tensioner 6. The tensioner 6 is threaded to the second hook 7. The tensioner 6 is threaded to the first hook 5 and the second hook 7. The distance between the first hook 5 and the second hook 7 can be adjusted according to the actual situation on site, so that the fixing rope is taut and fixed between the walls 12.

[0057] The second hook 7 is fixed to the side of the wall 12 inside the factory building via the expansion hook 8. During installation, first fix the expansion hook 8, then slip the second hook 7 of the fixing rope inside the expansion hook 8. The installation method is simple and convenient. For disassembly, simply remove the second hook 7; the expansion hook 8 remains fixed to the wall 12 without removal, facilitating future use.

[0058] In addition, the fixing rope can also be directly fixed using expansion screws 13.

[0059] Multiple ring-shaped buckles 4 are provided to ensure the stability of the fixed mesh protective structure 3. The distance between two adjacent ring-shaped buckles 4 is 70cm, which reduces the weight of the device and the installation time while ensuring the stability of the fixation. This aims to make installation and use more convenient.

[0060] In another embodiment of the present invention, the distance between two adjacent annular buckles is not limited, as long as the stability of the mesh protective structure 3 is ensured when it is fixed, and the distance between the mesh protective structure 3 and the first fixing rope and the second fixing rope is small enough to block flying stones and sand.

[0061] The mesh protective structure 3 adopts a double-layer flame-retardant dense mesh. Relying on the closed physical barrier of the dense mesh, a three-level purification system of dust "interception-adsorption-sedimentation" can be constructed. Within 30 minutes after the blast, the PM10 concentration in the work area can drop sharply from 1200μg / m³ to below 150μg / m³, meeting the national occupational health standards and providing a safe and controllable working environment for subsequent key processes.

[0062] Both the first fixing rope 1 and the second fixing rope 2 are made of steel wire rope. Steel wire rope has high tensile strength, can withstand large weight and tension, and can be pulled relatively straight without breaking, thus ensuring the stability of the mesh protective structure 3 when fixed. In addition, steel wire rope has good wear resistance and is not easily worn even when friction occurs between it and the first hook 5.

[0063] Preferably, the diameter of both the first fixing rope 1 and the second fixing rope 2 is 8mm. They are made of high-strength steel wire, capable of withstanding enormous tensile forces, ensuring the stable suspension of the mesh protective structure 3.

[0064] As another embodiment of the present invention, the diameters of the first fixing rope 1 and the second fixing rope 2 can also be selected as 6mm, 10mm, etc., as long as the mesh protective structure 3 is suspended stably.

[0065] The mesh protective structure 3 is fixed between the first fixing rope 1 and the second fixing rope 2 by spring buckles. The spring buckles are easy to use, and the mesh protective structure 3 can be attached with one hand.

[0066] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A protective device for blasting of factory foundations, Its features are, It includes a first fixing rope (1) and a second fixing rope (2), both ends of the first fixing rope (1) and both ends of the second fixing rope (2) are fixed to the side of the wall (12) inside the factory building. A mesh protective structure (3) is provided between the first fixing rope (1) and the second fixing rope (2). The mesh protective structure (3) is fixed between the first fixing rope (1) and the second fixing rope (2) by a ring buckle (4).

2. The protective device for factory foundation blasting as described in claim 1, Its features are, The first fixing rope (1) and the second fixing rope (2) have the same structure. The first fixing rope (1) has a first hook (5) connected to both ends. The first hook (5) is threadedly connected to a tightener (6). The tightener (6) is threadedly connected to a second hook (7). The second hook (7) is fixed to the side of the wall (12) inside the factory building by means of an expansion hook (8).

3. A protective device for factory foundation blasting as described in claim 1. Its features are, Multiple ring buckles (4) are provided, and the distance between two adjacent ring buckles (4) is 70cm. The first fixing rope (1) and the second fixing rope (2) are both provided with fixing sections (9) corresponding to the ring buckles (4).

4. A protective device for factory foundation blasting as described in claim 1. Its features are, The mesh protective structure (3) adopts a double-layer flame-retardant dense mesh.

5. A protective device for factory foundation blasting as described in claim 2. Its features are, Both the first fixing rope (1) and the second fixing rope (2) are made of steel wire rope.

6. A protective device for factory foundation blasting as described in claim 2, Its features are, The diameter of the first fixing rope (1) and the second fixing rope (2) is 8mm.

7. A protective device for factory foundation blasting as described in claim 1. Its features are, The mesh protective structure (3) is fixed between the first fixing rope (1) and the second fixing rope (2) by spring buckles.

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