An engineered blast protection device

Abstract

The utility model discloses an engineering blasting protection device relates to blasting protection device technical field, including backboard, the front side of backboard is equipped with the impact board, the four corners of impact board back are all fixedly connected with compression spring, the back of impact board is fixedly connected with a plurality of pressure rod, the middle part of backboard positive surface is equipped with the rectangular slot, the inside fixed embedding of rectangular slot is equipped with the anti -explosion air bag, one side wall of rectangular slot is equipped with the cylindrical slot, and the self -resetting type press switch is installed to one side inner wall of cylindrical slot, the back of backboard is equipped with two lengthened protection board. The utility model discloses an engineering blasting protection device, through setting backboard and the impact board of front side, cooperate between a plurality of compression springs, can buffer protection to the shock wave, impact debris and soil block in the blasting range, avoid causing the damage and shaking of protection device, and the lengthened protection board of two sides can adjust the unfolding according to the blasting protection area, to increase and expand the blasting protection area.

Description

Technical Field

[0001] This utility model relates to the technical field of blasting protection devices, and in particular to an engineering blasting protection device. Background Technology

[0002] Engineering blasting is a scientific and technological process that uses the explosive energy of explosives to destroy the original structure of objects. It is mainly used in railway construction, mining, water conservancy projects and urban building demolition. Core technologies include deep-hole blasting, smooth blasting and pre-splitting blasting.

[0003] In the process of realizing this utility model, the inventors discovered that:

[0004] In engineering blasting, protective devices are needed to shield and protect personnel and equipment in order to increase the protection of these areas. Most existing protective devices only buffer shock waves and impact debris, but they cannot detect the impact force of the debris. If the impact force is too strong, it indicates that the area is highly dangerous and additional protective measures or immediate evacuation are required. In addition, the existing protective devices have relatively limited functions and the protected area cannot be flexibly adjusted. Summary of the Invention

[0005] In order to solve the problems existing in the prior art, this utility model provides an engineering blasting protection device.

[0006] Therefore, the technical solution of this utility model is as follows: an engineering blasting protection device, including a back plate, an impact plate is provided on the front side of the back plate, compression springs are fixedly connected to the four corners of the back of the impact plate, multiple pressure rods are fixedly connected to the back of the impact plate, a rectangular groove is opened in the middle of the front of the back plate, an explosion-proof airbag is fixedly embedded in the inside of the rectangular groove, a columnar groove is opened on one side wall of the rectangular groove, and a self-resetting push switch is installed on the inner wall of one side of the columnar groove.

[0007] The back of the back panel has two extended protective plates, and the top of the back panel has a dust collection pipe. Multiple nozzles are fixedly embedded in the front of the dust collection pipe. Each nozzle has an arc-shaped wiping plate on one side. The inner walls of the multiple arc-shaped wiping plates are all in contact with the outer wall of the dust collection pipe. A vertical plate is fixedly connected to the side wall of one of the extended protective plates. Multiple indicator lights are installed on the front of the vertical plate. The indicator lights are electrically connected to an external power supply through a self-resetting push switch.

[0008] Preferably, the bottom of the back plate is fixedly connected to a base, and multiple locking pins pass through both ends of the base; in this solution, the locking pins can strengthen the connection between the base and the ground, and enhance the stability of the protection.

[0009] Preferably, the ends of the multiple compression springs furthest from the impact plate are fixedly connected to the front of the back plate; in this solution, the compression springs act as a buffer against impact debris and other foreign objects, preventing them from acting directly on the back plate, thus improving the stability of the device and protecting it.

[0010] Preferably, the cylindrical groove is provided with an expansion bag inside, one end of which is connected to the inside of the explosion-proof airbag. In this solution, the elasticity of the expansion bag is stronger than that of the explosion-proof airbag. Therefore, when the explosion-proof airbag is compressed, excess gas will enter the expansion bag and cause it to inflate.

[0011] Preferably, a pair of sliding strips are fixedly connected to the front of the extended protective plate, and the extended protective plate is slidably connected to the back of the back plate through the pair of sliding strips; in this solution, the extended protective plate is slidably connected to the back plate by means of the sliding strips, and can be flexibly pulled out when needed.

[0012] Preferably, the bottom end of the dust collection pipe is fixedly connected to multiple columns, and the bottom ends of the multiple columns are all fixedly connected to the top end of the back plate; in this solution, the columns support the dust collection pipe.

[0013] Preferably, one end of the dust collection pipe is fixedly connected to a water inlet pipe, and the end of the water inlet pipe away from the dust collection pipe is connected to a water source. In this solution, the water source enters the dust collection pipe through the water inlet pipe, and the water source is pressurized.

[0014] Preferably, a transmission rod is fixedly connected to the top of each of the multiple arc-shaped wiping plates, and the transmission rod is laterally slidably connected to the outer wall of the dust collection pipe; in this solution, pulling the transmission rod can simultaneously drive the multiple arc-shaped wiping plates to move.

[0015] Beneficial effects: Compared with the prior art, this utility model, by setting a back plate and a front impact plate, in conjunction with multiple compression springs, can buffer and protect against shock waves, impact debris, and soil clods within the blasting range, preventing damage and shaking of the protective device. Simultaneously, the extended protective plates on both sides can be adjusted and expanded according to the blasting protection area to increase and expand the blasting protection zone. The base and locking pins strengthen the connection with the ground, improving the stability of the protective device. The explosion-proof airbag, in conjunction with the expansion bag and self-resetting push switch, can illuminate an indicator light when the impact force is too large, thus alerting the operator that the blasting impact force within this range is significant and that protective measures should be taken or evacuation should be carried out promptly. The dust suppression pipe at the top, in conjunction with multiple nozzles, can simultaneously spray dust within the blasting protection area to reduce dust within the blasting range. Multiple arc-shaped wiping plates and transmission rods can provide shielding protection during non-spraying periods, while the moving wiping mechanism keeps the nozzles clear. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the present invention.

[0017] Figure 2 This is a structural diagram of the cylindrical groove of this utility model.

[0018] Figure 3 This is a structural diagram of the pressure bar of this utility model.

[0019] Figure 4 This is a structural diagram of the transmission rod of this utility model.

[0020] The following components are shown in the diagram: 1. Base; 2. Locking pin; 3. Back plate; 4. Impact plate; 5. Compression spring; 6. Extended protective plate; 7. Sliding strip; 8. Vertical plate; 9. Indicator light; 10. Dust collection pipe; 11. Column; 12. Nozzle; 13. Transmission rod; 14. Arc-shaped wiping plate; 15. Water inlet pipe; 16. Explosion-proof airbag; 17. Columnar groove; 18. Expansion bag; 19. Self-resetting push switch; 20. Pressure rod. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings, but this embodiment should not be construed as a limitation of this utility model.

[0022] This utility model is as follows Figures 1 to 4 As shown:

[0023] An engineering blasting protection device includes a back plate 3. An impact plate 4, made of 65Mn spring steel with a thickness of 8mm, is located on the front side of the back plate 3. The impact plate 4 is sized to match the back plate 3 and its surface is hardened (hardness HRC45-50) to improve wear resistance. Compression springs 5 ​​are fixedly connected to the four corners of the back of the impact plate 4. Multiple pressure rods 20 are fixedly connected to the back of the impact plate 4. A rectangular groove is formed in the center of the front of the back plate 3, and an explosion-proof airbag 16 is fixedly embedded inside the rectangular groove. The airbag 16 is made of nylon 66 fiber braided layer and nitrile rubber coating. A cylindrical groove 17 is formed on one side wall of the rectangular groove, and a self-resetting push-button switch 19 is installed on the inner wall of one side of the cylindrical groove 17. The back of the back plate 3 is... There are two extended protective plates 6, made of aluminum alloy 6061-T6, 6mm thick, with a single unfolded size of 1500mm×1500mm×6mm and a weight of ≤25kg. One of the extended protective plates 6 has a vertical plate 8 fixedly connected to its side wall. Multiple indicator lights 9 are installed on the front of the vertical plate 8. The indicator lights 9 are electrically connected to an external power supply via a self-resetting push switch 19 through a wire. The wire is of appropriate length and is coiled and retractable, so that when the extended protective plate 6 moves and extends, the position of the indicator lights 9 on its surface moves accordingly, and the wire stretches accordingly, which can meet the electrical connection requirements after the extended protective plate 6 moves, so as not to affect the triggering and opening of the indicator lights 9.

[0024] The bottom of the back plate 3 is fixedly connected to the base 1. Multiple locking pins 2 pass through both ends of the base 1. The ends of multiple compression springs 5 ​​away from the impact plate 4 are fixedly connected to the front of the back plate 3. An expansion bag 18 made of polyurethane elastomer is provided inside the cylindrical groove 17. One end of the expansion bag 18 is connected to the inside of the explosion-proof airbag 16. The self-resetting push switch 19 is set to trigger pressure of 300N (corresponding to an expansion bag expansion amount ≥0.1m³) to ensure that the warning is activated only under high-risk impact.

[0025] During blasting operations, the base 1 is placed in the protected area. The back plate 3 and impact plate 4 shield the impact within the blast range. When debris and soil are ejected from the blast, they impact the impact plate 4, where multiple compression springs 5 ​​on its back cushion and weaken the impact, thus blocking the debris and reducing the impact on the overall protective device, maintaining its stability. When the protected area expands, the extended protective plates 6 on both sides can be extended. These extended plates 6, in conjunction with the back plate 3 and impact plate 4, create a larger shielding area, flexibly adapting to different blasting scenarios. For protective purposes, when the blasting impact force is too large, resulting in large amounts of flying debris and soil, it will forcefully impact the impact plate 4, thus exceeding the normal compression of the compression spring 5. This causes the multiple pressure rods 20 on the back of the impact plate 4 to squeeze the explosion-proof airbag 16 in the middle. In this way, the gas inside the explosion-proof airbag 16 will be squeezed into the expansion bag 18. After the expansion bag 18 expands, it will correspondingly squeeze the self-resetting push switch 19 in the cylindrical groove 17. This will cause the multiple indicator lights 9 on the vertical plate 8 to light up, thereby reminding the operator that the blasting impact force in this area is large and that protective measures should be taken or the area evacuated in time.

[0026] In this embodiment, a dust-collecting pipe 10 is provided on the top of the back plate 3. Multiple nozzles 12 are fixedly embedded on the front of the dust-collecting pipe 10. Each of the multiple nozzles 12 has an arc-shaped wiping plate 14 on one side. The inner wall of the multiple arc-shaped wiping plates 14 is attached to the outer wall of the dust-collecting pipe 10. A pair of sliding strips 7 are fixedly connected to the front of the extended protective plate 6. The extended protective plate 6 is slidably connected to the back of the back plate 3 through the pair of sliding strips 7. The extended protective plate 6 is adjusted by the sliding strips 7 cooperating with the sliding groove of the back plate 3. The unfolding resistance is ≤50N. After positioning, it is fixed by spring pin. Multiple columns 11 are fixedly connected to the bottom of the dust-collecting pipe 10. The bottom of the multiple columns 11 is fixedly connected to the top of the back plate 3. A water pipe 15 is fixedly connected to one end of the dust-collecting pipe 10. The end of the water pipe 15 away from the dust-collecting pipe 10 is connected to a water source. A transmission rod 13 is fixedly connected to the top of the multiple arc-shaped wiping plates 14. The transmission rod 13 is slidably connected to the outer wall of the dust-collecting pipe 10.

[0027] While performing blast protection, the water pipe 15 can be connected to an external water source to introduce water into the dust suppression pipe 10, so that water is sprayed out from multiple nozzles 12 to achieve dust suppression within the protection range. After spraying, the transmission rod 13 can be pulled to drive multiple arc-shaped wiping plates 14 to shield and protect the nozzles 12, while rubbing the nozzles 12 to keep them unobstructed.

[0028] Any aspects not described in detail in this specification are techniques well-known in the art.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An engineering blasting protection device, comprising a back plate (3), characterized in that: The back plate (3) is provided with an impact plate (4) on the front side. Compression springs (5) are fixedly connected to the four corners of the back of the impact plate (4). Multiple pressure rods (20) are fixedly connected to the back of the impact plate (4). A rectangular groove is provided in the middle of the front of the back plate (3). An explosion-proof airbag (16) is fixedly embedded inside the rectangular groove. A columnar groove (17) is provided on one side wall of the rectangular groove. A self-resetting push switch (19) is installed on one side inner wall of the columnar groove (17). The back of the back plate (3) is provided with two extended protective plates (6), and the top of the back plate (3) is provided with a dust-collecting pipe (10). Multiple nozzles (12) are fixedly embedded on the front of the dust-collecting pipe (10). Each of the multiple nozzles (12) is provided with an arc-shaped wiping plate (14) on one side. The inner wall of the multiple arc-shaped wiping plates (14) is attached to the outer wall of the dust-collecting pipe (10). A vertical plate (8) is fixedly connected to the side wall of one of the extended protective plates (6). Multiple indicator lights (9) are installed on the front of the vertical plate (8). The indicator lights (9) are electrically connected to an external power supply through a self-resetting push switch (19).

2. The engineering blasting protection device according to claim 1, characterized in that: The bottom end of the back plate (3) is fixedly connected to the base (1), and multiple locking pins (2) pass through both ends of the base (1).

3. The engineering blasting protection device according to claim 1 or 2, characterized in that: One end of each of the compression springs (5) away from the impact plate (4) is fixedly connected to the front of the back plate (3).

4. The engineering blasting protection device according to claim 3, characterized in that: The cylindrical groove (17) is provided with an expansion bag (18) inside. One end of the expansion bag (18) is connected to the inside of the explosion-proof airbag (16). The expansion bag (18) is connected to the inside of the explosion-proof airbag (16).

5. The engineering blasting protection device according to claim 1, 2, or 4, characterized in that: The extended protective plate (6) is fixedly connected to a pair of slide bars (7) on its front side, and the extended protective plate (6) is slidably connected to the back side of the back plate (3) through the pair of slide bars (7).

6. The engineering blasting protection device according to claim 5, characterized in that: The bottom end of the dust collection pipe (10) is fixedly connected to multiple columns (11), and the bottom ends of the multiple columns (11) are fixedly connected to the top end of the back plate (3).

7. The engineering blasting protection device according to claim 6, characterized in that: One end of the dust collection pipe (10) is fixedly connected to a water inlet pipe (15), and the end of the water inlet pipe (15) away from the dust collection pipe (10) is connected to an external water source.

8. The engineering blasting protection device according to claim 7, characterized in that: A transmission rod (13) is fixedly connected to the top of each of the multiple arc-shaped wiping plates (14), and the transmission rod (13) is laterally slidably connected to the outer wall of the dust collection pipe (10).

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