A comprehensive protection device for engineering blasting and its application method

Abstract

This invention belongs to the technical field of blasting auxiliary equipment, and particularly relates to a comprehensive protection device for engineering blasting, comprising: a support base with several inserts on its bottom surface; a protective panel, which is a composite protective plate; and a connecting support mechanism mounted on the support base, capable of adjusting the tilt angle of the protective panel; and a panel mounting section with the comprehensive protection mechanism mounted thereon. The panel mounting section is connected to the connecting support mechanism, and the protective panel is positioned on the front side of the panel mounting section. The comprehensive protection mechanism can protect against impacts, dust, and noise during blasting operations. Compared to existing technologies, this invention effectively improves the adaptability and comprehensive protection performance of the comprehensive protection device for engineering blasting.

Description

Technical Field

[0001] This invention belongs to the technical field of blasting auxiliary equipment, and in particular relates to a comprehensive protection device for engineering blasting and its usage method. Background Technology

[0002] A comprehensive protective device for engineering blasting is a protective device designed to ensure the safety of engineering blasting operations and prevent harm to surrounding personnel, equipment, and the environment. It is mainly used in blasting construction in fields such as construction, mining, tunneling, and transportation to reduce the impact of shock waves, flying rocks, dust, and noise generated during blasting operations on personnel and equipment. For example, a comprehensive protective device for blasting disclosed in patent application number CN202021313327.1 includes a fixed base plate, a protective plate on the right side of the fixed base plate, and support rods movably connected to the front and rear sides of the upper part of the protective plate. One end of the support rod is connected to the fixed base plate, and a positioning rope fixedly connected to the protective plate is provided on the right side of the support rod. One end of the positioning rope is fixedly connected to a positioning pin.

[0003] The existing engineering blasting protection device has poor terrain adaptability during use. When installed on some sloped terrain, its stability is low and it is prone to tipping over due to the impact of flying rocks. At the same time, the protection effect of the device against blasting noise and dust is not satisfactory. Its overall protection effect needs to be improved, so it is necessary to make improvements. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a comprehensive engineering blasting protection device and its usage method, so as to effectively improve the adaptability and comprehensive protection performance of the protection device.

[0005] In view of this, the present invention provides a comprehensive protection device for engineering blasting, comprising:

[0006] A support base, wherein the bottom surface of the support base is provided with a plurality of insert posts;

[0007] The protective panel is a composite protective panel;

[0008] Also includes:

[0009] A connecting support mechanism is provided, which is mounted on a support base and can adjust the tilt angle of the protective panel.

[0010] A panel mounting section, on which a comprehensive protective mechanism is provided;

[0011] The panel mounting part is connected to the connecting support mechanism, the protective panel is set on the front side of the panel mounting part, and the integrated protection mechanism can protect against impact, dust and noise during blasting operations.

[0012] In this technical solution, the engineering blasting integrated protection device can be fixed at the target position by a support base and several inserts thereon. Then, by moving the control panel of the connecting support mechanism, the tilt angle of the protective panel can be adjusted, so that the protective panel can remain perpendicular to the horizontal plane when facing terrain with a certain slope. At the same time, the support base can also fully cooperate with the ground, ensuring the installation stability of the engineering blasting integrated protection device. Through the protective panel and the integrated protection mechanism, the device protects against impact, noise and dust during blasting operations. Compared with the prior art, the present invention effectively improves the adaptability and comprehensive protection performance of the engineering blasting integrated protection device.

[0013] In the above technical solution, the connecting support mechanism further includes:

[0014] The main connecting frame, wherein the front end of the bottom of the main connecting frame is connected to the front end of the support base through a first pivot node to form a rotating joint;

[0015] The first linear actuator has its end hinged to the rear side of the support base sidewall via a second pivot node, and its drive end hinged to the top of the main connecting frame via a third pivot node.

[0016] The sub-connecting frame has a bottom front end that forms a rotating joint connection with the top of the main connecting frame via a fourth pivot node;

[0017] The second linear actuator has its end hinged to the rear end of the bottom of the main connecting frame via a fifth pivot node, and its drive end hinged to the middle of the top of the auxiliary connecting frame via a sixth pivot node.

[0018] The top of the sub-connecting bracket is connected to the back of the panel mounting part.

[0019] Furthermore, in the above technical solution, the integrated protection mechanism also includes:

[0020] A noise protection unit is provided on the back of the panel mounting part, and the noise protection unit can reduce the noise generated by blasting operations through the Helmholtz resonance phenomenon;

[0021] An impact protection section is disposed in the panel mounting section;

[0022] Dust protection unit, wherein the dust protection unit is disposed at the top of the panel mounting unit;

[0023] The protective panel is mounted on the front side of the panel mounting part via an impact protection section.

[0024] In the above technical solution, the noise protection unit further includes:

[0025] A resonance chamber, wherein the resonance chamber is disposed on the back of the panel mounting portion;

[0026] A noise reduction component, comprising a noise reduction plate having a plurality of micropores and a connecting plate connected to the noise reduction plate, wherein the noise reduction component is connected to a resonance chamber via the connecting plate and is disposed in the resonance chamber;

[0027] The silencing component, together with the inner wall of the resonance chamber and the back of the panel mounting part, forms a Helmholtz resonance cavity. The area of ​​the micropore is 20mm²-70mm², the spacing between adjacent micropores is 9-28mm, the spacing between the silencing plate and the inner wall of the resonance chamber is 7-18mm, and the spacing between the silencing plate and the back of the panel mounting part is 12-30mm.

[0028] In the above technical solution, the dust protection unit further includes:

[0029] A flow guide has several flow guides that are evenly spaced along the length of the panel mounting portion on the top of the panel mounting portion, and several atomizing nozzles are provided at the bottom of the flow guide.

[0030] A booster water tank is installed in the panel mounting part. The water outlet of the booster water tank is connected to the atomizing nozzle, and the water inlet of the booster water tank is connected to an external water source.

[0031] A compressed air cylinder is installed in the panel mounting part. The air outlet of the compressed air cylinder is connected to the booster water tank, and the air inlet of the compressed air cylinder is connected to an external air source.

[0032] The pressurized water tank is pressurized by supplying high-pressure gas from a compressed gas cylinder.

[0033] In the above technical solution, the impact protection part further includes:

[0034] Several damping buffer rods are evenly spaced within the panel mounting section. One end of each damping buffer rod is connected to the inner wall of the panel mounting section, and the other end is connected to the back of the protective panel.

[0035] A linkage component, wherein there are several linkage components evenly distributed within the panel mounting portion, and the linkage component includes a linkage rod connected to the protective panel;

[0036] The linkage component can buffer the impact force through friction damping as the protective panel moves.

[0037] In the above technical solution, the linkage further includes:

[0038] The first support column is disposed in the panel mounting part, and a rotating shaft is rotatably mounted on the top end of the first support column.

[0039] A linkage gear, wherein the linkage gear is connected to one end of a rotating shaft via a one-way coupling;

[0040] A friction disc is disposed at the end of the rotating shaft away from the linkage gear, and an irregular cavity is formed on the side wall of the friction disc;

[0041] The second support column is disposed in the panel mounting part and located on one side of the first support column;

[0042] A fixed shaft is provided at the top of the second support column. A cavity is provided inside the fixed shaft. A one-way air outlet and a one-way air inlet are provided on the fixed shaft, which communicate with the cavity.

[0043] Several cylinders are evenly spaced along the circumference of a fixed shaft at the end of the fixed shaft, and several cylinders are located in a shaped cavity.

[0044] A piston rod, one end of which is located in the cylinder and is equipped with a piston that seals against the inner wall of the cylinder, and the other end of which is located outside the cylinder and is equipped with a friction block;

[0045] A retaining ring is disposed at the bottom of the cylinder and is concentrically distributed with the cylinder.

[0046] A spring is disposed in the cylinder, one end of which is connected to the surface of the retaining ring and the other end is connected to the bottom of the piston;

[0047] The one-way air outlet is connected to a compressed air cylinder, the bottom end of the cylinder is connected to a cavity inside a fixed shaft, and the friction block abuts against the inner wall of the heterogeneous cavity.

[0048] In the above technical solution, the flow guide further includes:

[0049] The outer casing is composed of a first air duct section, a second air duct section and a third air duct section connected in sequence, and the end of the third air duct section is provided with a fluid outlet;

[0050] A flow guide plate assembly is disposed inside the housing. The flow guide plate assembly includes at least two flow guide plates symmetrically distributed along the length direction of the housing, and the spacing between the two flow guide plates increases in the direction of fluid flow.

[0051] The diversion grid is installed in the fluid outlet at the end of the third air duct section. The diversion grid is composed of several grid plates that extend along the length of the outer shell and are equidistantly distributed along the width of the outer shell.

[0052] Several atomizing nozzles are arranged at the beginning of the first air duct section. The width of the first air duct section gradually decreases along the fluid flow direction, the width of the second air duct section gradually increases along the fluid flow direction, and the width of the third air duct section gradually decreases along the fluid flow direction. A buffer gap is reserved between the guide vane group and the several atomizing nozzles.

[0053] Furthermore, in the above technical solution, the present invention also discloses a method for using the above-mentioned comprehensive protection device for engineering blasting, comprising the following steps:

[0054] S1 base installation: After selecting the target location, fix the support base to the target location using the insert pins;

[0055] The S2 protective panel unfolds by controlling the first and second linear actuators in the connection support mechanism to unfold the main connecting frame and the auxiliary connecting frame, and adjusts the unfolding distance according to the slope of the target position so that the protective panel is perpendicular to the horizontal plane.

[0056] The S3 blasting integrated protection system protects the protective panel from flying debris, noise, and dust generated during the blasting process. The noise protection unit in the integrated protection mechanism weakens the noise through Helmholtz resonance, the dust protection unit protects against dust by spraying atomized water, and the impact protection unit protects against impacts through the protective panel itself, damping buffer rods, and linkage components. At the same time, the linkage components work in conjunction with the dust protection unit during the impact protection process to assist in the spraying of atomized water.

[0057] After the S4 is recovered and the protective operation is completed, the first and second linear actuators in the control connection support mechanism are controlled again to retract the main connecting frame and the auxiliary connecting frame, so that the engineering blasting integrated protection device can be retracted.

[0058] In this technical solution, the engineering blasting integrated protection device is easy to install and highly adaptable during use. It can effectively protect against the impact, noise and dust generated during blasting. After use, the engineering blasting integrated protection device can be retracted, which facilitates the storage of the engineering blasting integrated protection device.

[0059] The beneficial effects of this invention are:

[0060] 1. By setting up a connecting support mechanism, the adaptability of the engineering blasting integrated protection device is improved, and the storage and handling of the engineering blasting integrated protection device is facilitated;

[0061] 2. The integrated protection mechanism effectively improves the overall protection performance of the engineering blasting integrated protection device;

[0062] 3. By setting up a noise protection unit, the noise generated by blasting operations is weakened by utilizing the Helmholtz resonance phenomenon, which effectively improves the noise protection effect of the integrated protection system;

[0063] 4. By setting up a dust protection unit, atomized water is used to protect against the dust generated by the explosion. At the same time, the guide hood allows the atomized water to be sprayed evenly and fully, forming a surface water mist layer, which improves the protection performance against explosion dust.

[0064] 5. By setting up the impact protection section, the impact of flying stones is effectively weakened by the use of fluid damping and friction damping, which improves the protection performance against flying stone impacts. At the same time, the impact force can be used to assist the spraying of atomized water through the linkage, making full use of energy. Attached Figure Description

[0065] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0066] Figure 1 This is a schematic diagram of a specific embodiment of the present invention.

[0067] Figure 2 This is a schematic diagram of the connection support mechanism of the present invention.

[0068] Figure 3 This is a side view structural diagram of the present invention.

[0069] Figure 4 This is a cross-sectional view of the panel mounting section of the present invention.

[0070] Figure 5 This is a schematic diagram of the noise protection component of the present invention.

[0071] Figure 6 This is a schematic diagram of the linkage structure of the present invention.

[0072] Figure 7 This is a schematic diagram of the fixed shaft structure of the present invention.

[0073] Figure 8 This is a schematic diagram of the air guide structure of the present invention.

[0074] Figure 9 This is a schematic cross-sectional view of the width direction of the air guide shield of the present invention.

[0075] Figure 10 This is a schematic cross-sectional view of the length direction of the air guide shield of the present invention.

[0076] Figure 11 This is a schematic diagram of the pipeline structure of the present invention.

[0077] The markings in the diagram are as follows:

[0078] 1. Support base; 100. Insert post; 2. Protective panel; 3. Connecting support mechanism; 30. Main connecting frame; 31. First linear actuator; 32. Secondary connecting frame; 33. Second linear actuator; 4. Panel mounting part; 5. Noise protection part; 50. Resonance box; 51. Silencing plate; 52. Connecting plate; 6. Impact protection part; 60. Damping buffer rod; 61. Linkage component; 610. Linkage rod; 611. First support column; 612. Linkage gear; 613. Friction disc; 614. Irregular cavity; 615. Second support column; 61 6. Fixed shaft; 6160. One-way air outlet; 6161. One-way air inlet; 617. Cylinder; 618. Piston rod; 6180. Piston; 6181. Friction block; 619. Retaining ring; 6110. Spring; 7. Dust protection unit; 70. Draft hood; 700. Outer shell; 701. First air duct section; 702. Second air duct section; 703. Third air duct section; 704. Draft vane assembly; 705. Flow divider grid; 71. Atomizing nozzle; 72. Booster water tank; 73. External water source; 74. Compressed air cylinder; 75. External air source; Detailed Implementation

[0079] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0080] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0081] Example 1:

[0082] This application provides a comprehensive protection device for engineering blasting, including: a support base 1, with a plurality of insert posts 100 provided on the bottom surface of the support base 1; and a protective panel 2, which is a composite protective plate.

[0083] It also includes: a connecting support mechanism 3, which is mounted on the support base 1 and can adjust the tilt angle of the protective panel 2; and a panel mounting part 4, which is equipped with a comprehensive protection mechanism.

[0084] The panel mounting part 4 is connected to the connecting support mechanism 3, and the protective panel 2 is set on the front side of the panel mounting part 4. The integrated protection mechanism can protect against impact, dust and noise during blasting operations.

[0085] Moreover, the protective panel 2 can be a conventional composite protective panel, including an outer layer, a middle layer and an inner layer. The outer layer can be a Kevlar fiber mesh layer, the middle layer can be a honeycomb aluminum core + damping gel filling layer, and the inner layer can be a lightweight carbon fiber frame. The support base 1 has two bases and is symmetrically distributed along the length of the protective panel 2. The support base 1 extends a certain length from the bottom of the protective panel 2 to the rear of the protective panel 2. Several posts 100 are evenly spaced along the length of the support base 1.

[0086] In this embodiment, during use, the engineering blasting integrated protection device can be fixed at the target position by the support base 1 and several inserts 100 thereon. Then, by connecting the support mechanism 3 and the control panel mounting part 4, the tilt angle of the protective panel 2 can be adjusted, so that the protective panel 2 can remain perpendicular to the horizontal plane when facing terrain with a certain slope. At the same time, the support base 1 can also fully cooperate with the ground, ensuring the installation stability of the engineering blasting integrated protection device. Through the protective panel 2 and the integrated protection mechanism, the device protects against impact, noise and dust during blasting operations. Compared with the prior art, the present invention effectively improves the adaptability and comprehensive protection performance of the engineering blasting integrated protection device.

[0087] Example 2:

[0088] This embodiment provides an integrated protection device for engineering blasting. In addition to the technical solutions of the above embodiments, it also has the following technical features: the connecting support mechanism 3 further includes: a main connecting frame 30, the front end of the bottom of the main connecting frame 30 and the front end of the support base 1 are connected by a first pivot node to form a rotating joint; a first linear actuator 31, the end of the first linear actuator 31 is hinged to the rear side of the side wall of the support base 1 by a second pivot node, and the driving end of the first linear actuator 31 is hinged to the top of the main connecting frame 30 by a third pivot node; a secondary connecting frame 32, the front end of the bottom of the secondary connecting frame 32 is connected to the top of the main connecting frame 30 by a fourth pivot node to form a rotating joint; a second linear actuator 33, the end of the second linear actuator 33 is hinged to the rear end of the bottom of the main connecting frame 30 by a fifth pivot node, and the driving end of the second linear actuator 33 is hinged to the middle of the top of the secondary connecting frame 32 by a sixth pivot node;

[0089] The top of the secondary connecting bracket 32 ​​is connected to the back of the panel mounting part 4.

[0090] In this embodiment, during use, the engineering blasting integrated protection device can be fixed at the target position by the support base 1 and several inserts 100 thereon. Then, the first linear actuator 31 is activated, extending to unfold the main connecting frame 30, thereby gradually moving the panel mounting part 4 from a horizontal to a vertical state. After the first linear actuator 31 is fully extended, the second linear actuator 33 is activated, unfolding the auxiliary connecting frame 32, thereby further moving the panel mounting part 4 to a vertical state, ultimately making the protective panel 2 installed on the panel mounting part 4 perpendicular to the horizontal plane. At the same time, when dealing with installation positions with a certain slope, the second linear actuator 33 can be activated by controlling the second linear actuator 34. The extension of the first linear actuator 31 and the second linear actuator 33 controls the tilt angle of the control panel mounting part 4, thereby controlling the tilt angle of the protective panel 2. This ensures that the support base 1 is in full contact with the installation position while the protective panel 2 is perpendicular to the horizontal plane. Furthermore, the arrangement of the first linear actuator 31, the second linear actuator 33, the main connecting frame 30, and the auxiliary connecting frame 32 forms a two-stage unfolding mechanism, effectively reducing the required length of the linear actuator and the load on a single linear actuator. This also reduces the installation space required for the connecting support mechanism 3 and ensures that the engineering blasting integrated protection device can be stably unfolded. At the same time, the connecting support mechanism 3 can effectively provide support when the protective panel 2 is subjected to flying stone impacts.

[0091] Example 3:

[0092] This embodiment provides a comprehensive protection device for engineering blasting. In addition to the technical solutions of the above embodiments, it also has the following technical features: the comprehensive protection mechanism further includes: a noise protection unit 5, which is disposed on the back of the panel mounting unit 4. The noise protection unit 5 can reduce the noise generated by blasting operations through the Helmholtz resonance phenomenon; an impact protection unit 6, which is disposed in the panel mounting unit 4; and a dust protection unit 7, which is disposed at the top of the panel mounting unit 4.

[0093] The protective panel 2 is mounted on the front side of the panel mounting part 4 via the impact protection part 6.

[0094] Furthermore, the panel mounting part 4 can be box-shaped, with an open box opening on the front side of the panel mounting part 4. The impact protection part 6 is installed inside the panel mounting part 4, and the protective panel 2 is movably installed at the box opening of the panel mounting part 4 and connected to the panel mounting part 4 through the impact protection part 6.

[0095] In this embodiment, the integrated protection mechanism, through the noise protection unit 5, the impact protection unit 6, and the dust protection unit 7, can effectively protect against flying rock impacts, noise, and dust generated during blasting operations, thereby effectively improving the overall protection performance of the engineering blasting integrated protection device.

[0096] Example 4:

[0097] This embodiment provides a comprehensive protection device for engineering blasting. In addition to the technical solutions of the above embodiments, it also has the following technical features: the noise protection unit 5 further includes: a resonance box 50, which is disposed on the back of the panel mounting unit 4; and a silencing component, which includes a silencing plate 51 with a plurality of micro-holes and a connecting plate 52 connected to the silencing plate 51. The silencing component is connected to the resonance box 50 through the connecting plate 52 and disposed in the resonance box 50.

[0098] The silencing component, the inner wall of the resonance chamber 50, and the back of the panel mounting part 4 cooperate to form a Helmholtz resonance cavity. The area of ​​the micropores is 20mm²-70mm², the spacing between adjacent micropores is 9-28mm, the spacing between the silencing plate 51 and the inner wall of the resonance chamber 50 is 7-18mm, and the spacing between the silencing plate 51 and the back of the panel mounting part 4 is 12-30mm.

[0099] Furthermore, the Helmholtz resonant cavity may have a narrow passage to the external environment on the back of the panel mounting part 4 or on the side of the resonant box 50, and this application does not limit this.

[0100] In this embodiment, after the noise generated by the blasting operation is transmitted to the resonant box 50, it forms a Helmholtz resonant cavity by cooperating with the silencing component, the inner wall of the resonant box 50, and the back of the panel mounting part 4. The area of ​​the micropores on the silencing plate 51 is set to 20mm²-70mm², and the spacing between adjacent micropores is 9-28mm. This optimizes the acoustic impedance matching characteristics between the Helmholtz resonant cavity and the air medium, significantly reduces the reflection loss of sound waves at the cavity entrance, and improves the transmission efficiency of noise energy into the cavity. This improvement promotes the coupling effect between the sound waves and the resonant cavity, enhances the dissipation capacity of sound energy in the cavity, and ultimately achieves more efficient noise attenuation performance.

[0101] Example 5:

[0102] This embodiment provides a comprehensive protection device for engineering blasting. In addition to the technical solutions of the above embodiments, it also has the following technical features: the dust protection unit 7 further includes: a guide hood 70, which has a plurality of nozzles evenly spaced along the length of the panel mounting part 4 on the top of the panel mounting part 4, and a plurality of atomizing nozzles 71 are provided at the bottom of the guide hood 70; a pressurized water tank 72, which is disposed in the panel mounting part 4, with the water outlet of the pressurized water tank 72 connected to the atomizing nozzles 71 and the water inlet of the pressurized water tank 72 connected to an external water source 73; and a compressed gas cylinder 74, which is disposed in the panel mounting part 4, with the gas outlet of the compressed gas cylinder 74 connected to the pressurized water tank 72 and the gas inlet of the compressed gas cylinder 74 connected to an external gas source 75.

[0103] The pressurized water tank 72 is pressurized by supplying high-pressure gas through the compressed gas cylinder 74.

[0104] Furthermore, the atomizing nozzle 71, the pressurized water tank 72, and the compressed air cylinder 74 are connected by conventional pipelines, which also include conventional valves such as pressure reducing valves, check valves, control valves, and pressure relief valves installed in series on the pipelines. An electric pump can also be installed on the pipelines for assistance as needed. Specifically, the pressure reducing valve and check valve can be installed between the compressed air cylinder 74 and the pressurized water tank 72, the check valve can be installed between the compressed air cylinder 74 and the external air source 75, and the check valve can be installed between the pressurized water tank 72 and the external water source 73.

[0105] In this embodiment, during operation, the engineering blasting integrated protection device delivers external water source 73 to pressurized water tank 72, pressurizes water tank 72 using compressed gas cylinder 74, and delivers pressurized water through pipelines to several atomizing nozzles 71 to finally form atomized water. The atomized water is sprayed to the outside through guide hood 70 to form a water curtain, thereby protecting against dust generated during blasting operations and preventing dust from causing pollution to the environment. Compressed gas cylinder 74 is pressurized by external gas source 75 to maintain stable pressurization.

[0106] Example 6:

[0107] This embodiment provides a comprehensive protection device for engineering blasting. In addition to the technical solutions of the above embodiments, it also has the following technical features: the impact protection part 6 further includes: a plurality of damping buffer rods 60, which are evenly distributed in the panel mounting part 4. One end of the damping buffer rod 60 is connected to the inner wall of the panel mounting part 4, and the other end is connected to the back of the protective panel 2; a linkage member 61, which has a plurality of linkage members and is evenly distributed in the panel mounting part 4. The linkage member 61 includes a linkage rod 610 connected to the protective panel 2.

[0108] Among them, the linkage 61 can buffer the impact force through friction damping as the protective panel 2 moves.

[0109] The linkage 61 further includes: a first support column 611, which is disposed in the panel mounting part 4, and a rotating shaft is rotatably mounted on the top end of the first support column 611; a linkage gear 612, which is connected to one end of the rotating shaft via a one-way coupling; a friction disc 613, which is disposed at the end of the rotating shaft away from the linkage gear 612, and a shaped cavity 614 is formed on the side wall of the friction disc 613; a second support column 615, which is disposed in the panel mounting part 4 and located on one side of the first support column 611; and a fixed shaft 616, which is disposed at the top end of the second support column 615, and has a cavity inside the fixed shaft 616, and a one-way coupling communicating with the cavity is provided on the fixed shaft 616. An air outlet 6160 and a one-way air inlet 6161; a plurality of cylinders 617, which are evenly spaced around the end of a fixed shaft 616 and located in a shaped cavity 614; a piston rod 618, one end of which is located in a cylinder 617 and is fitted with a piston 6180 that seals against the inner wall of the cylinder 617, and the other end of which is located outside the cylinder 617 and is fitted with a friction block 6181; a retaining ring 619, which is located at the bottom of the cylinder 617 and is concentrically distributed with the cylinder 617; and a spring 6110, which is located in the cylinder 617, one end of which is connected to the surface of the retaining ring 619 and the other end of which is connected to the bottom of the piston 6180.

[0110] Among them, the one-way air outlet 6160 is connected to the compressed air cylinder 74, the bottom end of the cylinder 617 is connected to the cavity inside the fixed shaft 616, the friction block 6181 abuts against the inner wall of the cavity, and the linkage rod 610 is provided with a rack that meshes with the linkage gear 612. The linkage rod 610 can drive the rack to move as the protective panel 2 moves.

[0111] Furthermore, the damping buffer rod 60 has a conventional structure, specifically including a fixed rod and a movable rod. The fixed rod has a damping cavity filled with damping fluid such as oil. One end of the movable rod is mounted in the damping cavity of the fixed rod via a piston. The piston has several damping holes. The other end of the movable rod is connected to the back of the protective panel 2. The linkage rod 610 can be a conventional telescopic rod structure, including a fixed rod fixedly mounted in the panel mounting part 4. The fixed rod has a cavity for mounting the movable rod, which is movably inserted into the cavity. The cavity also has a conventional elastic... The reset component is used to assist the moving rod in resetting. The rack is mounted on the surface of the moving rod and extends along the moving direction of the moving rod. The one-way air outlet 6160 is connected to the compressed air cylinder 74 through a conventional pipeline and realizes one-way air delivery through a one-way valve. The cylinder 617, piston rod 618 and piston 6180 are all conventional structures. The cylinder 617 is axially distributed along the radial direction of the fixed rod. The piston rod 618 and the cylinder 617 are conventionally movable. The space of the cylinder 617 at the top of the piston is connected to the external air. Preferably, a friction layer can also be installed on the inner wall of the irregular cavity 614.

[0112] In this embodiment, when the protective panel 2 is impacted by a flying stone, the protective panel 2 first buffers the impact through its own structure. Simultaneously, under the impact force, the protective panel 2 moves into the panel mounting part 4, causing the damping buffer rod 60 and the linkage rod 610 to contract. During the contraction process, the damping buffer rod 60 dissipates the impact energy through fluid damping. During the contraction process, the linkage rod 610 drives the rack to move, causing the meshing linkage gear 612 to rotate. The rotation of the linkage gear 612 drives the rotating shaft to rotate, thereby causing the friction disc 613 to rotate. During the rotation of the friction disc 613, the piston rod 618, under the action of the spring 6110, keeps the friction block 6181 always in contact with the irregular cavity 614. The inner walls abut against each other, causing friction between the friction block 6181 and the inner wall of the irregular cavity 614. This friction converts the energy generated by the impact into heat energy, thereby consuming the impact energy and improving the protection against flying stone impacts. At the same time, as the friction disc 613 rotates, due to the irregular structure of the irregular cavity 614, the piston rod 618 moves back and forth with the rotation of the friction disc 613. This causes the piston to move back and forth in the cylinder 617 and compress the air in the cavity inside the fixed shaft 616. This air in the cavity is then pumped through the one-way outlet 6160 and pipeline to the compressed air cylinder 74, replenishing the compressed air in the compressed air cylinder 74, reducing the consumption of the external air source 75, and effectively utilizing the impact energy.

[0113] Example 7:

[0114] This embodiment provides a comprehensive protection device for engineering blasting. In addition to the technical solutions of the above embodiments, it also has the following technical features: the flow guide 70 further includes: an outer shell 700, which is composed of a first air duct section 701, a second air duct section 702, and a third air duct section 703 connected in sequence, with a fluid outlet at the end of the third air duct section 703; a flow guide plate group 704, which is disposed inside the outer shell 700 and includes at least two flow guide plates symmetrically distributed along the length direction of the outer shell 700, with the spacing between the two flow guide plates increasing along the fluid flow direction; and a flow divider grid 705, which is disposed in the fluid outlet at the end of the third air duct section 703 and is composed of several grid plates extending along the length direction of the outer shell 700 and equidistantly distributed along the width direction of the outer shell 700.

[0115] Among them, a number of atomizing nozzles 71 are set at the beginning of the first air duct section 701. The width of the first air duct section 701 gradually decreases along the fluid flow direction, the width of the second air duct section 702 gradually increases along the fluid flow direction, the width of the third air duct section 703 gradually decreases along the fluid flow direction, and a buffer gap is reserved between the guide vane group 704 and the atomizing nozzles.

[0116] In this embodiment, after the atomizing nozzle sprays atomized water, the atomized water moves with the airflow from the starting end of the first air duct section 701 to the fluid outlet of the third air duct section 703. Due to the design that the width of the first air duct section 701 gradually decreases along the fluid flow direction, the width of the second air duct section 702 gradually increases along the fluid flow direction, and the width of the third air duct section 703 gradually decreases along the fluid flow direction, the atomized water repeatedly collides with and diffuses against the inner wall of the air duct due to the continuous change in the air duct width during flow. This ensures that the atomized water is fully distributed within the guide shroud 70. The arrangement of the guide plate group 704 further improves the uniformity of the atomized water distribution. When the uniformly distributed atomized water is sprayed from the fluid outlet, under the action of the diversion grid 705, the atomized water can form a multi-layered water curtain, thereby further improving the dust protection effect. Compared with the prior art, this invention, through the arrangement of the guide shroud 70, enables the atomized water sprayed from the atomizing nozzle to effectively form a planar water mist, and can form a multi-layered planar water mist, thus improving the dust protection effect.

[0117] Example 8:

[0118] This embodiment provides a method for using a comprehensive protection device for engineering blasting. In addition to the technical solutions of the above embodiments, it also has the following technical features, including the following steps:

[0119] S1 Base Installation: After selecting the target location, fix the support base 1 at the target location using the insert 100;

[0120] S2 The protective panel 2 is unfolded. By controlling the first linear actuator 31 and the second linear actuator 33 in the connection support mechanism, the main connecting frame 30 and the auxiliary connecting frame 32 are unfolded, and the unfolding distance is adjusted according to the slope of the target position so that the protective panel 2 is perpendicular to the horizontal plane.

[0121] S3 Comprehensive Blasting Protection: After the blast begins, the protective panel 2 withstands the impact of flying rocks, noise, and dust generated during the blast. The noise protection unit 5 in the comprehensive protection mechanism weakens the noise through the Helmholtz resonance phenomenon. The dust protection unit 7 protects against dust by spraying atomized water. The impact protection unit 6 protects against impacts through the protective panel 2 itself, the damping buffer rod 60, and the linkage 61. At the same time, the linkage 61 is linked with the dust protection unit 7 during the impact protection process to assist in the spraying of atomized water.

[0122] S4 is retracted. After the protection operation is completed, the first linear actuator 31 and the second linear actuator 33 in the control connection support mechanism are controlled again to retract the main connecting frame 30 and the auxiliary connecting frame 32, so that the engineering blasting integrated protection device can be retracted.

[0123] In this embodiment, the engineering blasting integrated protection device is easy to install and highly adaptable during use. It can effectively protect against the impact, noise and dust generated during blasting. After use, the engineering blasting integrated protection device can be retracted, which facilitates the storage of the engineering blasting integrated protection device.

[0124] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An integrated protection device for engineering blasting, comprising: a support base (1), the bottom surface of the support base (1) being provided with a plurality of insertion columns (100); a protection panel (2), the protection panel (2) being a composite protection panel; characterized in that it further comprises: a connecting support mechanism (3) provided on the support base (1), the connecting support mechanism (3) being capable of adjusting the inclination angle of the protection panel (2); a panel mounting portion (4) provided with an integrated protection mechanism; wherein the panel mounting portion (4) is connected with the connecting support mechanism (3), the protection panel (2) is provided on the front side of the panel mounting portion (4), and the integrated protection mechanism is capable of protecting against impact, dust and noise in blasting operations; the connecting support mechanism (3) further comprises: a main connecting frame (30), the front end of the bottom of the main connecting frame (30) being connected with the front end of the support base (1) through a first pivot joint to form a rotary pair connection; a first linear actuator (31), the end of the first linear actuator (31) being hinged to the rear side of the side wall of the support base (1) through a second pivot joint, and the driving end of the first linear actuator (31) being hinged to the top of the main connecting frame (30) through a third pivot joint; a secondary connecting frame (32), the front end of the bottom of the secondary connecting frame (32) being connected with the top of the main connecting frame (30) through a fourth pivot joint to form a rotary pair connection; a second linear actuator (33), the end of the second linear actuator (33) being hinged to the rear end of the bottom of the main connecting frame (30) through a fifth pivot joint, and the driving end of the second linear actuator (33) being hinged to the middle of the top of the secondary connecting frame (32) through a sixth pivot joint; wherein the top of the secondary connecting frame (32) is connected with the back of the panel mounting portion (4); the integrated protection mechanism further comprises: a noise protection portion (5) provided on the back of the panel mounting portion (4), the noise protection portion (5) being capable of weakening the noise generated in blasting operations through the Helmholtz resonance phenomenon; an impact protection portion (6) provided in the panel mounting portion (4); a dust protection portion (7) provided at the top end of the panel mounting portion (4); wherein the protection panel (2) is provided on the front side of the panel mounting portion (4) through the impact protection portion (6); the noise protection portion (5) further comprises: a resonance box (50) provided on the back of the panel mounting portion (4); a sound-absorbing piece comprising a sound-absorbing plate (51) provided with a plurality of micro-holes and a connecting plate (52) connected with the sound-absorbing plate (51), the sound-absorbing piece being connected with the resonance box (50) through the connecting plate (52) and being provided in the resonance box (50). The sound-absorbing piece cooperates with the inner wall of the resonance box (50) and the back of the panel mounting portion (4) to form a Helmholtz resonance cavity, the area of the micro-holes is 20-70 mm2, the distance between adjacent micro-holes is 9-28 mm, the distance between the sound-absorbing plate (51) and the inner wall of the resonance box (50) is 7-18 mm, and the distance between the sound-absorbing plate (51) and the back of the panel mounting portion (4) is 12-30 mm; The dust protection portion (7) further comprises: A flow guide cover (70) is provided on the top of the panel mounting portion (4) and is uniformly distributed along the length direction of the panel mounting portion (4), and the bottom of the flow guide cover (70) is provided with a plurality of atomizing nozzles (71); A pressurized water tank (72) is arranged in the panel mounting portion (4), the water outlet end of the pressurized water tank (72) is communicated with the atomizing nozzles (71), and the water inlet end of the pressurized water tank (72) is connected with an external water source (73); A compressed gas cylinder (74) is arranged in the panel mounting portion (4), the gas outlet end of the compressed gas cylinder (74) is communicated with the pressurized water tank (72), and the gas inlet end of the compressed gas cylinder (74) is connected with an external gas source (75); The pressurized water tank (72) is pressurized by high-pressure gas provided by the compressed gas cylinder (74); The impact protection portion (6) further comprises: A plurality of damping buffer rods (60) are uniformly and interval distributed in the panel mounting portion (4), one end of the damping buffer rod (60) is connected with the inner wall of the panel mounting portion (4), and the other end is connected with the back of the protection panel (2); A linkage member (61) is uniformly distributed in the panel mounting portion (4), and the linkage member (61) comprises a linkage rod (610) connected with the protection panel (2); The linkage member (61) can buffer the impact force through friction damping when the protection panel (2) moves.

2. An engineered blasting containment device according to claim 1, wherein, The linkage member (61) further comprises: A first support column (611) is arranged in the panel mounting portion (4), and a rotating shaft is rotatably arranged at the top end of the first support column (611); A linkage gear (612) is drivingly connected with one end of the rotating shaft through a one-way coupling; A friction disc (613) is arranged at the end of the rotating shaft away from the linkage gear (612), and a special-shaped cavity (614) is formed in the side wall of the friction disc (613); A second support column (615) is arranged in the panel mounting portion (4) and located on one side of the first support column (611); A fixed shaft (616) is arranged at the top end of the second support column (615), the fixed shaft (616) is provided with a cavity, a one-way gas outlet (6160) and a one-way gas inlet (6161) which are communicated with the cavity are arranged on the fixed shaft (616); A plurality of air cylinders (617) are uniformly distributed in the end of the fixed shaft (616) along the circumferential direction and located in the special-shaped cavity (614); A piston rod (618) is located in the air cylinder (617) at one end and is provided with a piston (6180) in sealing cooperation with the inner wall of the air cylinder (617), and is located outside the air cylinder (617) at the other end and is provided with a friction block (6181); A stop ring (619) is arranged at the bottom of the air cylinder (617) and is concentrically distributed with the air cylinder (617); A spring (6110) is arranged in the air cylinder (617), one end of the spring (6110) is connected with the surface of the stop ring (619), and the other end is connected with the bottom of the piston (6180); Wherein, the one-way air outlet (6160) is in communication with the compressed gas cylinder (74), the bottom end of the air cylinder (617) is in communication with the cavity in the fixed shaft (616), the friction block (6181) abuts against the inner wall of the special-shaped cavity, the rack is arranged on the linkage rod (610) and is engaged with the linkage gear (612), and the linkage rod (610) can drive the rack to move with the movement of the protective panel (2).

3. An engineered blasting containment device according to claim 2, wherein, The flow guide cover (70) further comprises: An outer shell (700) composed of a first air duct section (701), a second air duct section (702) and a third air duct section (703) connected in sequence, and a fluid outlet is arranged at the end of the third air duct section (703); A set of guide vanes (704) arranged inside the outer shell (700), the set of guide vanes (704) comprising at least two guide vanes symmetrically distributed along the length direction of the outer shell (700), the spacing between the two guide vanes being incrementally distributed along the fluid flow direction; A flow splitting grid (705) arranged in the fluid outlet at the end of the third air duct section (703), the flow splitting grid (705) being composed of a plurality of grid plates extending along the length direction of the outer shell (700) and equidistantly spaced along the width direction of the outer shell (700); Wherein, a plurality of atomizing nozzles (71) are arranged at the starting end of the first air duct section (701), the width of the first air duct section (701) gradually decreases along the fluid flow direction, the width of the second air duct section (702) gradually increases along the fluid flow direction, the width of the third air duct section (703) gradually decreases along the fluid flow direction, and a buffer gap is reserved between the set of guide vanes (704) and the plurality of atomizing nozzles.

4. A method of using an engineered blast containment device as claimed in claim 3, wherein, The method comprises the following steps: S1 Base installation: after selecting the target position, the support base (1) is fixed at the target position by means of the insertion column (100); S2 Unfolding the protective panel (2): by controlling the first linear actuator (31) and the second linear actuator (33) in the connection support mechanism, the main connecting frame (30) and the auxiliary connecting frame (32) are unfolded, and the unfolding distance is adjusted according to the slope of the target position, so that the protective panel (2) is perpendicular to the horizontal plane; S3 Comprehensive protection of blasting, after the blasting starts, the protection panel (2) bears the impact of flying stones, noise and dust generated during the blasting process, the noise protection part (5) in the comprehensive protection mechanism weakens the noise through the Helmholtz resonance phenomenon, the dust protection part (7) protects the dust by spraying atomized water, the impact protection part (6) protects the impact through the protection panel (2) itself and the damping buffer rod (60) and the linkage (61), and the linkage (61) is linked with the dust protection part (7) during the protection of the impact, and assists the spraying of atomized water; S4 Recovery, after the protection operation is completed, the first linear actuator (31) and the second linear actuator (33) in the connection support mechanism are controlled again, the main connecting frame (30) and the auxiliary connecting frame (32) are retracted, so that the engineering blasting comprehensive protection device is retracted.

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