Tunnel blasting protection device

Abstract

The utility model provides a tunnel blasting protection device which comprises a base and a protection plate rotationally connected with the base, a protection net is arranged on the surface of the protection plate, an exhaust fan is arranged in the protection plate, and a water mist nozzle is further arranged at the top of the protection plate. A plurality of liftable trundles are arranged on the base; a vibration measuring module is further arranged in the base and used for detecting blasting construction vibration. An electricity storage device and a control module are arranged in the base. The device can be quickly moved to a tunnel portal for blasting construction to start working, blasting flying stones and the like can be blocked and protected by the device, personnel and property safety can be guaranteed, ventilation and dust falling can be performed on a tunnel blasting area, tunnel construction efficiency can be improved, blasting vibration can be detected, and the blasting vibration detection efficiency can be improved. The blasting of this time is analyzed in combination with parameters such as the boulder rate of a field muck pile, blast hole arrangement, the explosive quantity and the maximum section explosive quantity, and a better scheme is provided for the next blasting.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel blasting construction, and particularly relates to a tunnel blasting protection device. Background Technique

[0002] Tunnel blasting construction is an important and indispensable link in modern engineering construction, and is widely used in fields such as transportation, water conservancy projects, and mining. In recent years, with the acceleration of urbanization, the demand for underground space has been increasing continuously, and the construction volume of tunnel projects has increased sharply. As an efficient means of tunnel excavation, blasting construction has the advantages of short construction period and high efficiency, and can quickly break through hard rock layers and accelerate the project construction speed. However, the complexity and potential risks of tunnel blasting construction cannot be underestimated. The process involves a large amount of blasting materials and equipment, posing a severe challenge to the safety of construction workers and the surrounding environment. Improper blasting operations may cause safety accidents such as vibration and flying rocks, and in severe cases, may lead to casualties and property losses. Therefore, how to effectively ensure the safety of blasting construction and improve the construction efficiency has become one of the urgent problems to be solved in the engineering field.

[0003] There are tunnel blasting protection devices and usage methods in the prior art. This solution forms a cooperation through the timing of the timing module and the induction of the metal induction block and the induction component to automatically determine the operating state of the driving motor, and unfolds the protection plate component to achieve blasting protection for the tunnel entrance. However, this solution fails to monitor the tunnel blasting vibration and cannot achieve dust reduction treatment. At the same time, there is also a protection mechanism for tunnel construction blasting in the prior art. This solution needs to fix the support outside the blasting position, and then under the movement of the moving component, drive the movement of the vertical plate, and the vertical plate drives the movement of the shielding net. At the same time, with the cooperation of the buffer component, the impact force of the crushed stones can be buffered, thus avoiding the injury of personnel caused by the flying of the crushed stones. However, this solution still fails to monitor the tunnel vibration and is relatively inconvenient to move. Content of the Utility Model

[0004] The purpose of the utility model is: aiming at the deficiencies in the above background technique, to provide a multifunctional tunnel blasting protection device, which can effectively protect against blasting flying rocks and monitor blasting vibration, ensure the safety of tunnel excavation, and at the same time has the advantages of rapid ventilation and dust reduction, convenient movement, simple operation, etc., and significantly improves the tunnel blasting construction efficiency.

[0005] To achieve the above object, the present utility model provides a tunnel blasting protection device, which includes a base and a protection plate. The protection plate is rotatably connected to the base. A protection net is arranged on the surface of the protection plate, an exhaust fan is arranged inside the protection plate, and a water mist nozzle is further arranged on the top of the protection plate. The water mist nozzle is connected to a water connection pipe, and the water connection pipe is used to provide water source and is connected to an external water source through a water connection port; the base is provided with a plurality of liftable casters; a vibration measurement module is further arranged inside the base, and the vibration measurement module is used to detect the vibration during blasting construction; a storage battery and a control module are arranged inside the base, the storage battery is used to supply power to the whole device, and the control module is used to control the whole device.

[0006] Further, the protection plate is rotatably connected to the base through a rotating seat, and the rotating seat is provided with a holding structure or is driven by a motor.

[0007] Further, the protection net is a honeycomb protection net.

[0008] Further, the exhaust fan is a bladeless fan.

[0009] Further, the water mist nozzles are evenly arranged on the front side and the rear side of the protection plate.

[0010] Further, a power interface is also arranged on the base, and the power interface is used to charge the storage battery or directly plug in for power supply.

[0011] Further, a control panel is also arranged on the base, and the control panel is used to input instructions to control the device.

[0012] Further, a lifting mechanism is arranged inside the base, and the wheel seat of the liftable caster is connected to the lifting mechanism.

[0013] Further, the vibration measurement module is a blasting vibration meter.

[0014] Further, the base is made of stainless steel, the control panel is protected by a stainless steel protective shell, and the water connection port is a stainless steel quick water connection port.

[0015] The above solution of the present utility model has the following beneficial effects:

[0016] The tunnel blasting protection device provided by the present utility model can quickly move the device to the tunnel entrance for blasting construction to start work. The device can block and protect blasting flying stones, etc., ensure the safety of personnel and property, ventilate and reduce dust in the tunnel blasting area, and improve the efficiency of tunnel construction. In addition, it can also detect blasting vibration, analyze the blasting based on parameters such as the large block rate of the blast pile, blast hole arrangement, explosive quantity, and maximum segment charge on-site, and provide a better plan for the next blasting. Therefore, the reliability, efficiency, and feasibility of subsequent optimization of tunnel blasting construction are improved;

[0017] Other beneficial effects of the present utility model will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the inside of the protection plate of the present utility model;

[0020] Figure 3 is a schematic diagram of the inside of the base of the present utility model.

[0021]

DESCRIPTION OF THE REFERENCE NUMERALS

[0022] 1 - Base; 2 - Protection plate; 3 - Rotating seat; 4 - Protection net; 5 - Exhaust fan; 6 - Storage battery; 7 - Control module; 8 - Water mist nozzle; 9 - Water connection pipe; 10 - Water connection port; 11 - Power supply interface; 12 - Control panel; 13 - Liftable casters; 14 - Vibration measurement module. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] In order to make the technical problems, technical solutions, and advantages to be solved by the present utility model clearer, the following will be described in detail with reference to the drawings and specific embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a locking connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] As Figure 1 shown, an embodiment of the present utility model provides a tunnel blasting protection device, including a base 1 and a protection plate 2. Among them, the base 1 is used to support the entire device, and at the same time, modules such as control, movement, power supply, water supply, and vibration measurement of the device are installed. The protection plate 2 is rotatably connected to the base 1 through a rotating seat 3, and in the unfolded state, it can block the flying stones generated by tunnel blasting, ensure the safety of personnel and property, and can ventilate and reduce dust in the tunnel blasting area, improving the efficiency of tunnel construction. Among them, the rotating seat 3 can be provided with a holding structure so that the protection plate 2 can be held after rotating in place relative to the base 1, or a motor can be provided for automatic rotation.

[0027] At the same time, as Figure 2 , Figure 3 shown, protection nets 4 are provided on both the front and rear sides of the protection plate 2, and an exhaust fan 5 is provided inside the protection plate 2. Among them, the exhaust fan 5 is fixed inside the protection plate 2 and is connected to a storage battery 6 and a control module 7 to be powered by the storage battery 6 and controlled by the control module 7 for opening and closing and speed control, etc. A water mist nozzle 8 is also provided on the top of the protection plate 2. The water mist nozzle 8 is connected to a water connection pipe 9 and a control module 7. The water connection pipe 9 is used to provide a water source and is connected to an external water source through a water connection port 10. The control module 7 can control the opening and closing of the valve on the water mist nozzle 8.

[0028] As a preferred embodiment, in this embodiment, the protective net 4 is a honeycomb protective net, which has good shock absorption ability, is lightweight and has high strength, and is suitable for long-term use. The exhaust fan 5 is a bladeless fan, without exposed blades, and has a high service life. The water mist nozzles 8 are evenly arranged front and back to achieve a better dust reduction effect.

[0029] In this embodiment, the storage battery 6 and the control module 7 are both arranged inside the base 1, which are used to provide electrical energy and control for the whole device. A (220V) power interface 11 is also arranged on the base 1. The storage battery 6 can be charged through the power interface 11 or directly plugged in for use, further improving the usage flexibility. As a preferred embodiment, in this embodiment, the water inlet 10 and the power interface 11 are both arranged on the side of the base 1 to facilitate connecting to an external water source, plugging in a wire, etc. In addition, a control panel 12 is also arranged on the side of the base 1. The control panel 12 inputs instructions in the way of buttons or a touch screen to control the device.

[0030] In this embodiment, a plurality of liftable casters 13 are arranged on the lower surface of the base 1. The liftable casters 13 enable the device to move on the ground. The wheel seat of the liftable casters 13 is connected to a lifting mechanism inside the base 1, such as a cylinder, an electric cylinder, etc. The control module 7 controls the lifting of the lifting mechanism. When the device needs to be moved, the lifting mechanism can be controlled to make the liftable casters 13 extend downward, so that the device can be pushed to move. When the device needs to maintain stable operation after moving into place, the lifting mechanism can be controlled to retract the liftable casters 13, so that the lower surface of the base 1 directly contacts the ground (or an elastic pad, etc.) to enable the device to maintain stability.

[0031] In this embodiment, a vibration measurement module 14 is also arranged inside the base 1. The vibration measurement module 14 can be equipped with a vibration sensor, etc. for detection, and the direct contact between the base 1 and the ground during the detection process can improve the detection accuracy. For example, the vibration measurement module 14 can adopt a NuBox-8016 type blasting vibration meter, with a sampling rate of 200KSps, an A / D resolution of 16Bit, a measurement accuracy of 0.1%, a signal-to-noise ratio of 86dB, having the advantages of trigger threshold self-adaptation and no need for setting, and can record 16384 data, with the length of each data being 57600 samples.

[0032] As a preferred embodiment, the base 1 in this embodiment is made of stainless steel to form a sealed whole, ensuring the safe operation of the internal electronic components. The control panel 12 is protected by a stainless steel protective shell, and the water inlet 10 is a stainless steel quick water inlet 10, which is convenient for personnel to operate.

[0033] Therefore, during the blasting construction of the tunnel, by using the tunnel blasting protection device provided in this embodiment, the liftable casters 13 are opened, and the device is moved to the tunnel entrance for blasting construction. Then, the liftable casters 13 are retracted, the protection plate 2 is manually or automatically unfolded, and the vibration measurement module 14 is turned on. When the tunnel is blasted, the protection net 4 on the protection plate 2 can block the flying stones generated by the blasting, preventing the flying stones from hitting the construction workers or the housing machinery and avoiding casualties and property losses. After the tunnel blasting is completed, the vibration measurement module 14 is turned off, the exhaust fan 5 and the water mist nozzles 8 on the protection plate 2 are turned on, and the blasted tunnel is ventilated and dusted. After the ventilation and dust removal are completed, the exhaust fan 5 and the water mist nozzles 8 are turned off, and the water inlet 10 connected to the external water source is disconnected. The protection plate 2 is closed, the protection plate 2 is rotated to the closed state, and the liftable casters 13 are opened to move the device to the designated position. The blasting vibration data measured by the vibration measurement module 14 is read, and combined with parameters such as the large block rate of the blasted muck pile, the blast hole arrangement, the explosive amount, and the maximum charge per delay, the analysis of this blasting is carried out to provide a better plan for the next blasting.

[0034] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0035] The above embodiments only represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as a limitation to the scope of the application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A tunnel blasting protection device, characterized in that: It includes a base and a protective plate, which is rotatably connected to the base, a protective net is arranged on the surface of the protective plate, an exhaust fan is arranged inside the protective plate, a water mist nozzle is also arranged on the top of the protective plate, the water mist nozzle is connected to a water receiving pipe, the water receiving pipe is used to provide water source, and is connected to an external water source through a water inlet; the base is provided with a plurality of liftable casters; a vibration measuring module is also arranged inside the base, and the vibration measuring module is used to detect blasting construction vibration; a battery storage device and a control module are arranged inside the base, the battery storage device is used to supply power to the entire device, and the control module is used to control the entire device.

2. A tunnel blasting protection device according to claim 1, characterized in that: The protective plate is rotatably connected to the base via a rotating seat, and the rotating seat is provided with a holding structure or driven by a motor.

3. The tunnel blasting protection device according to claim 1, characterized in that: The protection net is a honeycomb protection net.

4. The tunnel blasting protection device according to claim 1, characterized in that: The exhaust fan is a bladeless fan.

5. The tunnel blasting protection device according to claim 1, characterized in that: The water mist nozzles are evenly arranged on the front and rear sides of the protective plate.

6. The tunnel blasting protection device according to claim 1, characterized in that: The base is also provided with a power interface, and the power interface is used to charge or directly plug in the storage device.

7. The tunnel blasting protection device according to claim 1, characterized in that: The base is also provided with a control panel, and the control panel is used to input instructions to control the device.

8. The tunnel blasting protection device according to claim 1, characterized in that: A lifting mechanism is arranged in the base, and the wheel seat of the liftable caster is connected to the lifting mechanism.

9. The tunnel blasting protection device according to claim 1, characterized in that: The vibration measuring module is a blasting vibration measuring instrument.

10. The tunnel blasting protection device according to claim 7, characterized in that: The base is made of stainless steel, the control panel is protected by a stainless steel protective shell, and the water inlet is a stainless steel quick water inlet.

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