Construction site blasting protection device

Abstract

The utility model discloses a construction site blasting protection device which comprises a shielding plate and a bottom plate, the shielding plate is connected with the bottom plate through a round pin, screw holes are formed in the positions, away from the round pin, of the shielding plate and the bottom plate, fixing holes are formed in the positions, close to the round pin, of the bottom plate, and a nail groove and an angle steel limiting seat are arranged in the middle of the bottom plate. Supporting limiting nails are arranged in the nail grooves, angle steel with the two bent ends is clamped in the angle steel limiting base, and round holes are formed in the bent positions of the two ends. The device adopts a folding structure, the baffle plate and the bottom plate are attached together at ordinary times, when the device is used, the two ends are fixed by the angle steel which is unfolded to form a right angle and has two bent ends, the lower ends of the supporting and limiting nails are inserted into the fixing holes to play a role in positioning, and the upper parts of the supporting and limiting nails abut against the baffle plate to play a role in protection; after being transported to a construction site, the device can be conveniently laid, and after blasting is completed, the device can be completely dismantled and reused, efficiency is improved, and cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of blasting protection, and particularly relates to a blasting protection device for construction sites. Background Art

[0002] During the construction of some mountain roads, due to the hard rock, it is difficult to excavate the road foundation. Therefore, blasting construction is required in some places. Blasting construction is a high-risk operation. During blasting, flying sand and stones scatter everywhere, and a safety accident may occur easily if not paid attention to. To ensure the safety of the blasting process, it is necessary to seriously analyze the safety factors affecting blasting and propose correct safety precautions. Usually, a protection device needs to be laid around the blasting site. The previous protection device was a steel hollow enclosure, and concrete was laid in the hollow part for fixation. However, several defects were found in the actual use process:

[0003] Firstly, for the concrete to take effect, it needs to be laid in advance, which is inconvenient. Secondly, it is difficult to deal with the concrete part after blasting. It is very difficult to dig it out. Therefore, a new type of protection device needs to be developed. Content of the Utility Model

[0004] To solve the above problems, the utility model discloses a blasting protection device for construction sites, which adopts a folding structure. All the components used can be prefabricated in advance and can be easily laid after being transported to the construction site. After blasting, they can be all removed and reused, improving efficiency and reducing costs.

[0005] To achieve the above object, the technical solution of the utility model is as follows:

[0006] A blasting protection device for construction sites includes a shielding plate and a bottom plate. The shielding plate and the bottom plate are connected by a round pin. There are screw holes at the places on the shielding plate and the bottom plate far from the round pin. There are fixing holes at the place on the bottom plate close to the round pin. There are a nail groove and an angle steel limiting seat in the middle of the bottom plate. A support limiting nail is arranged in the nail groove. The angle steel with both ends bent is stuck in the angle steel limiting seat, and round holes are arranged at the bent parts at both ends.

[0007] As an improvement of the utility model, a rubber layer is arranged on the back of the shielding plate.

[0008] As an improvement of the utility model, each support limiting nail is in a "dry" shape, the lower part of the support limiting nail is pointed, and the upper parts of the two support limiting nails are connected together.

[0009] As an improvement of the utility model, the angle steel and the screw hole are fixed by a bolt.

[0010] As an improvement of the utility model, the fixing holes are two or four, and are arranged in parallel along the round pin.

[0011] As an improvement of this utility model, the number of angle steel is 1 piece.

[0012] The beneficial effects of this utility model are as follows:

[0013] The blasting protection device for construction sites described in this utility model adopts a folding structure. Normally, the shielding plate is attached to the base plate. When in use, it unfolds to a right angle. The angle steel at both ends is fixed, and the lower end of the support limit nail is inserted into the fixing hole for positioning. The upper part supports the shielding plate for protection. All components of this device can be prefabricated and easily laid after arriving at the construction site. After blasting, it can be completely disassembled and reused, improving efficiency and reducing costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the working state of this utility model.

[0015] Figure 2 This is a schematic diagram of the unfolded state of this utility model.

[0016] List of identifiers in attached diagrams:

[0017] 1. Baffle plate, 2. Base plate, 3. Round pin, 4. Screw hole, 5. Fixing hole, 6. Nail groove, 7. Angle steel limit seat, 8. Support limit nail, 9. Angle steel, 10. Rubber layer, 11. Bolt. Detailed Implementation

[0018] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0019] As shown in the figure, the blasting protection device for construction sites according to this utility model includes a shielding plate 1 and a base plate 2. The shielding plate 1 and the base plate 2 are connected by a round pin 3. The shielding plate 1 and the base plate 2 are provided with screw holes 4 away from the round pin. The base plate 2 is provided with fixing holes 5 near the round pin. The base plate 2 is provided with a nail groove 6 and an angle steel limiting seat 7 in the middle. The nail groove 6 is provided with a supporting limiting nail 8. The angle steel limiting seat 7 is used to hold the angle steel 9 bent at both ends. The bent ends are provided with round holes.

[0020] The blasting protection device for construction sites described in this utility model includes a shielding plate 1 and a base plate 2, and has three states:

[0021] 1. When not in use, fold it up. The cover plate 1 is below the base plate 2, the support limit pin 8 is inserted into the pin groove 6, and the angle steel 9 with both ends bent is inserted into the angle steel limit seat 7.

[0022] 2. During the initial installation, unfold the shielding plate 1 and the base plate 2, as follows: Figure 2As shown, take out the support limit pin 8 and drive the lower end into the fixing hole 5.

[0023] 3. Erect the shielding plate 1 and stick it to the upper half of the support limit pin 8. Take out the angle steel 9 and install the bent parts at both ends at the screw holes 4 to ensure that the shielding plate 1 is in a vertical state, as Figure 1 shown.

[0024] The angle steel 9 has two functions: the first is to prevent the shielding plate 1 from tilting forward and backward, and the second is to jointly hold the shielding plate 1 with the upper half of the support limit pin 8 to block the blasting shock wave.

[0025] The utility model is provided with a rubber layer 10 on the back of the shielding plate 1, which plays a certain buffering role.

[0026] Each support limit pin 8 of the utility model is in the shape of a "dry" character, the lower part of the support limit pin 8 is pointed, the upper parts of the two support limit pins are connected together, and the two support limit pins 8 are fixed to the fixing holes 5 on the adjacent bottom plates (one on each side), so that several bottom plates can be combined together.

[0027] The angle steel 9 of the utility model is fixed to the screw hole 4 through a bolt 11, which is convenient for installation and disassembly.

[0028] A blasting protection device at the construction site of the utility model adopts a folding structure. Usually, the shielding plate and the bottom plate are fitted together. When in use, it is unfolded at a right angle, and the angle steel with bent ends fixes both ends. The lower end of the support limit pin is inserted into the fixing hole to play a positioning role, and the upper part holds the shielding plate to play a protection role. All the components used in this device can be prefabricated in advance and are very convenient to lay after being transported to the construction site. After the blasting is completed, it can be completely disassembled and reused, which improves efficiency and reduces costs.

[0029] It should be noted that the above content only illustrates the technical idea of the utility model and cannot limit the protection scope of the utility model. For those of ordinary skill in the art, without departing from the principle of the utility model, several improvements and retouches can be made, and these improvements and retouches all fall within the protection scope of the claims of the utility model.

Claims

1. A blasting protection device for construction sites, characterized in that: It includes a baffle plate (1) and a bottom plate (2). The baffle plate (1) and the bottom plate (2) are connected by a round pin (3). There are screw holes (4) at the places on the baffle plate (1) and the bottom plate (2) far from the round pin. There is a fixing hole (5) at the place on the bottom plate (2) close to the round pin. There are a nail groove (6) and an angle steel limit seat (7) in the middle of the bottom plate (2). There is a support limit nail (8) in the nail groove (6). The angle steel (9) with both ends bent is clamped in the angle steel limit seat (7), and there are round holes at the bent places at both ends.

2. The blasting protection device for construction sites according to claim 1, characterized in that: There is a rubber layer (10) on the back of the baffle plate (1).

3. The blasting protection device for construction sites according to claim 1, characterized in that: Each support limit nail (8) is in the shape of a "dry" character. The lower part of the support limit nail (8) is pointed, and the upper parts of the two support limit nails are connected together.

4. The blasting protection device for construction sites according to claim 1, characterized in that: The angle steel (9) and the screw hole (4) are fixed by a bolt (11).

5. A blasting protection device for construction sites according to claim 1, characterized in that: The fixing holes (5) are two or four, and are arranged parallel to the round pin (3).

6. A blasting protection device for construction sites according to claim 1, characterized in that: The number of the angle steels (9) is one.

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