Blasting safety protection device

Abstract

The invention relates to the technical field of civil engineering, and discloses a blasting safety protection device which comprises a water tank, a water delivery pump communicated with an inner cavity of the water tank, a delivery pipe communicated with a water outlet of the water delivery pump, a spray head communicated with the other end of the delivery pipe and a pressure release valve arranged on the surface of the water outlet of the water delivery pump. The unsealing mechanism comprises an opening and closing assembly arranged in the spray head and used for conducting or blocking water flow, a driving assembly capable of controlling opening of the opening and closing assembly through shock waves generated during explosion, and a pressurizing assembly used for absorbing pressure of the shock waves and intensively transmitting the pressure to the driving assembly. Through cooperation of all the components in the unsealing mechanism, a water flow channel of a spray head can be driven to be opened by utilizing the pressure of explosive shock waves under the condition that manual operation is not needed, spraying and automatic dust falling are carried out, the timeliness of dust falling is greatly improved, after the explosive shock waves disappear, the reset speed of a first plugging disc and a second plugging disc is delayed, and the dust falling efficiency is improved. Therefore, the spray dust-settling time of the nozzle is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of civil engineering, and particularly relates to a blasting safety protection device. Background Art

[0002] Some blasting safety protection devices have a dust reduction function. They can reduce the flying dust generated by blasting through methods such as spraying water and mist, reduce the air pollution caused by dust, improve the working environment, protect the physical health of construction workers, and also meet the environmental protection requirements. For example, in operations such as urban demolition blasting or tunnel blasting, the dust reduction device can effectively reduce the impact of dust on the lives of surrounding residents and the urban environment.

[0003] During the use of some existing blasting safety protection devices, usually, the staff needs to manually open the water valve after the explosion, or continuously open the water valve during the construction process for dust reduction. A large amount of dust will be generated immediately after the blasting. If the water spraying for dust reduction cannot be carried out in time, the dust will quickly spread to the surrounding environment, which will not only affect the visibility at the site but also pollute the air quality, endanger the physical health of the on-site staff, and is not conducive to the development of subsequent work; continuous water spraying will not only consume water resources but also may cause water accumulation in the construction area, resulting in slippery ground. Summary of the Invention

[0004] In view of the problems existing in the above-mentioned existing blasting safety protection devices, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a blasting safety protection device.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: including, A dust reduction mechanism, including a water tank, a water supply pump connected to the inner cavity of the water tank, a delivery pipe connected to the water outlet of the water supply pump, a spray head connected to the other end of the delivery pipe, and a pressure relief valve provided on the surface of the water outlet of the water supply pump; An unsealing mechanism, including an opening and closing component provided inside the spray head for conducting or blocking water flow, a driving component capable of controlling the opening of the opening and closing component by using the shock wave generated during the explosion, and a pressure increasing component for absorbing the pressure of the shock wave and concentrating it to be transmitted to the driving component; The opening and closing component includes a rotating rod installed on the inner surface of the spray head through a bearing sleeve, a first swing column fixedly installed at the penetrating end of the rotating rod, a first sealing disc fixedly sleeved on the outer surface of the rotating rod and used in cooperation with the spray head, a second sealing disc rotatably sleeved on the outer surface of the rotating rod and used in cooperation with the spray head and the first sealing disc, and a second swing column fixedly installed on the outer end face of the second sealing disc.

[0007] As a preferred embodiment of the blasting safety protection device of the present invention, wherein: the driving assembly includes a fixing frame fixedly connected to the outer surface of the nozzle, an inclined surface extrusion block slidably contacting the inner surface of the fixing frame, a transmission column located on the inclined surface side of the inclined surface extrusion block, a slider fixedly installed on the outer end surface of the transmission column, pressure application grooves respectively starting from the inner surfaces on both sides of the slider and used in cooperation with the first swing column and the second swing column, and a first spring fixedly installed on the outer surface of the nozzle and used in cooperation to control the reset of the slider.

[0008] As a preferred embodiment of the blasting safety protection device of the present invention, wherein: the inclined surface extrusion block abuts against the inclined surface of the transmission column, the outer surface of the slider slidably contacts the inner wall of the fixing frame, the outer surfaces of the second sealing disc and the second swing column respectively slidably contact the inner walls of the two pressure application grooves, and the outer end surface of the first spring abuts against the slider.

[0009] As a preferred embodiment of the blasting safety protection device of the present invention, wherein: the pressure boosting assembly includes a fixing sleeve fixedly connected to the outer surface of the nozzle, a movable rod slidably contacting the inner surface of the fixing sleeve, a stress plate fixedly installed on the outer end surface of the movable rod and used to receive the explosion shock wave, a force application end fixedly connected to the other end of the movable rod and used to apply a thrust to the inclined surface extrusion block, a second spring sleeved on the outer surface of the movable rod, and a fixing block fixedly sleeved on the outer surface of the movable rod and used in cooperation with the stress plate.

[0010] As a preferred embodiment of the blasting safety protection device of the present invention, wherein: the second spring is located in the inner cavity of the fixing sleeve, and the outer surface of the fixing block slidably contacts the inner wall of the fixing sleeve.

[0011] As a preferred embodiment of the blasting safety protection device of the present invention, wherein: the unsealing mechanism further includes a delay component for controlling the slow reset of the driving assembly to extend the dust suppression time, and a protection component for preventing the opening and closing assembly and the driving assembly from being damaged by the crushed stones generated by the explosion.

[0012] As a preferred embodiment of the blasting safety protection device of the present invention, wherein: the delay component includes a plurality of installation grooves opened on the inclined surface of the inclined surface extrusion block, a rotating column fixedly connected to the inner wall of the installation groove, a blocking block rotatably sleeved on the outer surface of the rotating column and used in cooperation with the transmission column, a third spring fixedly installed on the inner wall of the installation groove and used in cooperation with the blocking block, fourth springs respectively fixedly installed on both side surfaces of the inclined surface extrusion block, and a limiting rod fixedly connected to the outer surface of the fixing frame and used in cooperation with the inclined surface extrusion block.

[0013] As a preferred embodiment of the blasting safety protection device of the present invention, the inner surface of the inclined extrusion block is in sliding contact with the outer surface of the limiting rod, the outer end surface of the third spring is fixedly connected to the outer surface of the stopper, and the outer end surface of the fourth spring is fixedly connected to the outer surface of the inclined extrusion block.

[0014] As a preferred embodiment of the blasting safety protection device of the present invention, the protection assembly includes a grille fixedly installed on the inner wall of the nozzle and a sealing cover fixedly connected to the top of the fixing frame.

[0015] The grille is used to prevent the gravel from damaging the first plugging disc and the second plugging disc along with the shock wave, and the sealing cover is used to protect the components inside the fixing frame.

[0016] The beneficial effects of the present invention are as follows: Through the cooperation of the components in the unsealing mechanism, without manual operation, the pressure of the explosion shock wave can be utilized to drive the opening of the water flow channel of the nozzle for automatic spray dust reduction, greatly improving the timeliness of dust reduction. After the blasting shock wave disappears, the reset speed of the first plugging disc and the second plugging disc is delayed, thereby prolonging the spray dust reduction time of the nozzle to ensure that the dust generated by blasting is fully adsorbed, so as to avoid the rapid diffusion of dust, protect the health of on-site personnel and the smooth progress of construction, further improve the quality of dust reduction operation, and reduce the effect of dust residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings. Among them: Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 For the present invention Figure 1 The enlarged schematic diagram of the partial structure at A in the present invention.

[0019] Figure 3 It is a schematic diagram of the internal structure of the nozzle and the fixing frame in the present invention.

[0020] Figure 4 For the present invention Figure 3 The enlarged schematic diagram of the partial structure at B in the present invention.

[0021] Figure 5 For the present invention Figure 3 The enlarged schematic diagram of the partial structure at C in the present invention.

[0022] Figure 6 This is an exploded view of a partial opening and closing component in the present invention.

[0023] Figure 7 This is a schematic diagram of the internal structure of the fixed sleeve in the present invention.

[0024] Figure 8 This is a schematic diagram of the overall structure of the delay component in the present invention.

[0025] In the figure: 100, dust reduction mechanism; 101, water tank; 102, water supply pump; 103, delivery pipe; 104, nozzle; 105, pressure relief valve; 200, unsealing mechanism; 201, opening and closing component; 201a, rotating rod; 201b, first swinging column; 201c, first sealing plate; 201d, second sealing plate; 201e, second swinging column; 202, driving component; 202a, fixing frame; 202b, inclined extrusion block; 202c, transmission column; 202d, slider; 202e; 202f, first spring; pressure application groove; 203, pressure boosting component; 203a, fixed sleeve; 203b, movable rod; 203c, force receiving plate; 203d, force applying end; 203e, second spring; 203f, fixing block; 204, delay component; 204a, installation groove; 204b, rotating column; 204c, stop block; 204d, third spring; 204e, fourth spring; 204f, limiting rod; 205, protection component; 205a, grille; 205b, sealing cover. Detailed implementation manners

[0026] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings of the specification.

[0027] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0028] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that mutually excludes other embodiments.

[0029] Next, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included. Embodiment

[0030] Refer to Figures 1 to 7 , which is the first embodiment of the present invention, provides a blasting safety protection device, and this device includes A dust suppression mechanism 100, including a water tank 101, a water supply pump 102 connected to the inner cavity of the water tank 101, a delivery pipe 103 connected to the water outlet of the water supply pump 102, a spray head 104 connected to the other end of the delivery pipe 103, and a pressure relief valve 105 provided on the surface of the water outlet of the water supply pump 102; It should be noted that the water tank 101 is used to store water for dust suppression, the water supply pump 102 pressurizes and conveys the water in the water tank, the delivery pipe 103 is connected to the spray head 104 to ensure water flow conveyance, the spray head 104 is used to spray water to form a water mist to adsorb the dust generated by blasting, reduce dust pollution, improve the working environment, and protect the health of personnel. The pressure relief valve 105 is used to prevent the delivery pipe 103 from bursting due to excessive water pressure. The pressure relief valve 105 is a prior art and will not be described in detail in this solution, and those skilled in the art can clearly understand its working principle.

[0031] An unsealing mechanism 200, including an opening and closing component 201 provided inside the spray head 104 and used to conduct or block the water flow, a driving component 202 capable of controlling the opening of the opening and closing component 201 by using the shock wave generated during explosion, and a pressurizing component 203 used to absorb the pressure of the shock wave and concentrate and transmit it to the driving component 202; The opening and closing component 201 includes a rotating rod 201a installed on the inner surface of the spray head 104 through a bearing sleeve, a first swinging column 201b fixedly installed at the penetrating end of the rotating rod 201a, a first sealing disk 201c fixedly sleeved on the outer surface of the rotating rod 201a and used in cooperation with the spray head 104, a second sealing disk 201d rotatably sleeved on the outer surface of the rotating rod 201a and used in cooperation with the spray head 104 and the first sealing disk 201c, and a second swinging column 201e fixedly installed on the outer end face of the second sealing disk 201d.

[0032] It should be noted that the rotating rod 201a is used to provide an installation position for the first swinging column 201b, the first sealing disk 201c, the second sealing disk 201d, and the second swinging column 201e, and when the first swinging column 201b is subjected to an external force, it drives the first sealing disk 201c to rotate. When the second swinging column 201e is subjected to an external force, it can drive the second sealing disk 201d to rotate, thereby opening the water flow channel of the spray head 104 and enabling water to spray out from the spray head 104.

[0033] Specifically, the driving assembly 202 includes a fixing bracket 202a fixedly connected to the outer surface of the nozzle 104, an inclined surface extrusion block 202b in sliding contact with the inner surface of the fixing bracket 202a, a transmission column 202c located on the inclined surface side of the inclined surface extrusion block 202b, a slider 202d fixedly installed on the outer end surface of the transmission column 202c, a pressure application groove 202e respectively starting from the inner surfaces on both sides of the slider 202d and cooperating with the first swing column 201b and the second swing column 201e, and a first spring 202f fixedly installed on the outer surface of the nozzle 104 and cooperating with the control slider 202d to reset.

[0034] It should be further noted that the fixing bracket 202a is used to provide a supporting structure for the installation and movement of the inclined surface extrusion block 202b and the slider 202d. When the inclined surface extrusion block 202b is subjected to the thrust of the explosion shock wave, it can push the inclined surface extrusion block 202b to slide along the inner surface of the fixing bracket 202a, and then transfer the thrust to the transmission column 202c through the inclined surface extrusion block 202b. While changing the direction of the thrust through the transmission column 202c, it drives the slider 202d to slide along the inner wall of the fixing bracket 202a. When the slider 202d slides, it can drive the pressure application groove 202e to push the first swing column 201b and the second swing column 201e to swing, thereby driving the first swing column 201b, the first sealing disc 201c and the second sealing disc 201d to open. The first spring 202f is used to provide a reset elastic force for the slider 202d after the explosion shock wave disappears, so that the driving assembly 202 and the opening and closing assembly 201 return to the initial state.

[0035] Furthermore, the inclined surface of the inclined surface extrusion block 202b abuts against the inclined surface of the transmission column 202c, the outer surface of the slider 202d is in sliding contact with the inner wall of the fixing bracket 202a, the outer surfaces of the second sealing disc 201d and the second swing column 201e are respectively in sliding contact with the inner walls of the two pressure application grooves 202e, and the outer end surface of the first spring 202f abuts against the slider 202d.

[0036] Among them, the pressure boosting assembly 203 includes a fixed sleeve 203a fixedly connected to the outer surface of the nozzle 104, a movable rod 203b in sliding contact with the inner surface of the fixed sleeve 203a, a force receiving plate 203c fixedly installed on the outer end surface of the movable rod 203b and used to receive the explosion shock wave, a force applying end 203d fixedly connected to the other end of the movable rod 203b and used to apply a thrust to the inclined surface extrusion block 202b, a second spring 203e sleeved on the outer surface of the movable rod 203b, and a fixed block 203f fixedly sleeved on the outer surface of the movable rod 203b and cooperating with the force receiving plate 203c.

[0037] It should be explained that the fixed sleeve 203a is used to provide a sliding track for the movable rod 203b to ensure the movement stability of the movable rod 203b. The force-receiving plate 203c is used to receive the shock wave pressure generated by the explosion. Under the action of the explosion shock wave, the force-receiving plate 203c receives the pressure of the explosion shock wave, and then converts the impact force into a thrust force on the movable rod 203b, driving the movable rod 203b to slide along the inner wall of the fixed sleeve 203a. Then, the movable rod 203b drives the force-applying end 203d to transmit the pressure of the shock wave to the force-applying end 203d. Then, the force-applying end 203d applies the pressure transmitted by the movable rod 203b to the end of the inclined surface extrusion block 202b, pushing the inclined surface extrusion block 202b to move linearly, thereby driving the driving assembly 202 to operate. The fixed block 203f is used to apply pressure to the second spring 203e and can move synchronously with the movable rod 203b. The second spring 203e can assist the movable rod 203b to return to the initial position after the shock wave disappears.

[0038] Preferably, the second spring 203e is located in the inner cavity of the fixed sleeve 203a, and the outer surface of the fixed block 203f is in sliding contact with the inner wall of the fixed sleeve 203a.

[0039] During use, Before the blasting construction: Fill the water tank 101 with dust-suppressing water, turn on the water supply pump 102 to transport the water inside the water tank 101 to the nozzle 104 through the delivery pipe 103. At this time, the first sealing disc 201c and the second sealing disc 201d are in the closed state, blocking the water flow channel of the nozzle 104 to prevent water from continuously spraying. At the same time, the pressure relief valve 105 is used to prevent the delivery pipe 103 from bursting due to excessive water pressure; During the blasting construction: The shock wave generated instantaneously during the blasting is received by the force-receiving plate 203c, and the impact force is converted into a thrust force on the movable rod 203b, causing the movable rod 203b to slide within the fixed sleeve 203a and driving the force-applying end 203d to apply pressure to the end of the inclined surface extrusion block 202b, pushing the inclined surface extrusion block 202b to slide along the inner surface of the fixed frame 202a. At the same time, the fixed block 203f moves with the movable rod 203b and compresses the second spring 203e; When the inclined surface extrusion block 202b slides: The thrust force is transmitted to the transmission column 202c, the direction of the thrust force is changed through the transmission column 202c, and the slider 202d is driven to slide along the inner wall of the fixed frame 202a. While compressing the first spring 202f, the pressure application groove 202e is driven to push the first swing column 201b and the second swing column 201e to swing. The first sealing disc 201c is driven to rotate by the rotating rod 201a, and then the second sealing disc 201d is driven to rotate by the second swing column 201e to open the water flow channel of the nozzle 104, so that the water pressurized by the water supply pump 102 is sprayed out from the nozzle 104, and the water is sprayed out through the nozzle 104 to form a water mist to adsorb the dust generated by the blasting.

[0040] In summary, through the cooperation of the opening and closing component 201, the driving component 202, and the pressurizing component 203, it is possible to drive the water flow channel of the nozzle 104 to open by using the pressure of the explosion shock wave without manual operation, so as to perform automatic dust suppression by spraying, greatly improving the timeliness of dust suppression, and achieving the effect of avoiding the rapid diffusion of dust, ensuring the health of on-site personnel and the smooth progress of construction. Embodiment

[0041] Referring to Figure 2 、 Figure 3 and Figure 8 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that this embodiment provides a delay component 204 for extending the dust suppression time after the explosion impact force dissipates, and a protection component 205 for preventing the opening and closing component 201 and the driving component 202 from being damaged by the gravel generated by the explosion.

[0042] It should be noted that the unsealing mechanism 200 further includes a delay component 204 for controlling the slow reset of the driving component 202 to extend the dust suppression time, and a protection component 205 for preventing the opening and closing component 201 and the driving component 202 from being damaged by the gravel generated by the explosion.

[0043] Furthermore, the delay component 204 includes a plurality of installation grooves 204a formed on the inclined surface of the inclined surface extrusion block 202b, a rotating column 204b fixedly connected to the inner wall of the installation groove 204a, a blocking block 204c rotatably sleeved on the outer surface of the rotating column 204b and used in cooperation with the transmission column 202c, a third spring 204d fixedly installed on the inner wall of the installation groove 204a and used in cooperation with the blocking block 204c, fourth springs 204e respectively fixedly installed on both side surfaces of the inclined surface extrusion block 202b, and a limiting rod 204f fixedly connected to the outer surface of the fixed frame 202a and used in cooperation with the inclined surface extrusion block 202b.

[0044] It should be noted that the installation groove 204a is used to provide an installation space for components such as the rotating column 204b, the stopper 204c, and the third spring 204d. The rotating column 204b is the axis for the rotation of the stopper 204c, enabling the stopper 204c to rotate around it. When the inclined surface extrusion block 202b extrudes the transmission column 202c, the stopper 204c can be pushed into the installation groove 204a by the transmission column 202c, and then quickly reset by the reaction force of the third spring 204d. When the inclined surface extrusion block 202b resets, the stopper 204c is blocked by the transmission column 202c, overcomes the elastic force of the third spring 204d, and rotates around the rotating column 204b to a position where it is disengaged from the transmission column 202c. The elastic deformation of the third spring 204d is used to delay the reset speed of the inclined surface extrusion block 202b and the transmission column 202c, and then it is reset by the reaction force of the third spring 204d to achieve the effect of extending the dust reduction working time. The fourth spring 204e is used to provide a reset elastic force for the inclined surface extrusion block 202b, and the limiting rod 204f is used to limit the movement range of the inclined surface extrusion block 202b to prevent the inclined surface extrusion block 202b from being ejected outside the fixed frame 202a by the fourth spring 204e.

[0045] Furthermore, the inner surface of the inclined surface extrusion block 202b is in sliding contact with the outer surface of the limiting rod 204f, the outer end surface of the third spring 204d is fixedly connected to the outer surface of the stopper 204c, and the outer end surface of the fourth spring 204e is fixedly connected to the outer surface of the inclined surface extrusion block 202b.

[0046] Specifically, the protection component 205 includes a grille 205a fixedly installed on the inner wall of the nozzle 104, and a sealing cover 205b fixedly connected to the top of the fixed frame 202a.

[0047] Preferably, the grille 205a is used to prevent gravel from damaging the first plugging disc 201c and the second plugging disc 201d along with the shock wave, and the sealing cover 205b is used to protect the components inside the fixed frame 202a.

[0048] During use, After the blasting shock wave disappears: the second spring 203e assists the movable rod 203b to return to the initial position, the first spring 202f provides a reset elastic force for the slider 202d, and the fourth spring 204e drives the inclined surface extrusion block 202b to reset, so that the driving component 202 and the opening and closing component 201 gradually return to the initial state; During the reset process of the inclined extrusion block 202b: The stop block 204c is blocked by the transmission column 202c, overcomes the elastic force of the third spring 204d, rotates around the rotating column 204b to a position where it is disengaged from the transmission column 202c, delays the reset speed of the inclined extrusion block 202b and the transmission column 202c through the elastic deformation of the third spring 204d, and then resets through the reaction force of the third spring 204d to achieve the effect of extending the dust suppression working time; Finally, the first sealing disc 201c and the second swing column 201e slowly close, closing the water flow channel of the nozzle 104 and completing a blasting dust suppression protection operation.

[0049] In summary, through the cooperation of the components in the delay assembly 204, after the blasting shock wave disappears, the reset speed of the first sealing disc 201c and the second sealing disc 201d can be delayed, thereby extending the spray dust suppression time of the nozzle 104, ensuring that the dust generated by blasting is fully adsorbed, so as to further improve the dust suppression operation quality and reduce the dust residue; through the protection assembly 205, the risk of the device being damaged by gravel impact can be reduced, so as to achieve the effect of extending the service life of the device, reducing the maintenance cost and downtime.

[0050] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible on the premise of substantially not deviating from the novel teachings and advantages of the subject matter described in this application (for example, the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, color, orientation changes, etc.). For example, an element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature, number or position of discrete elements can be changed or altered. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structure that performs the recited function in this disclosure, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims. In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (that is, those features that are not relevant to the currently considered best mode of implementing the present invention, or those features that are not relevant to implementing the present invention).

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. A blasting safety protection device, characterized in that: including a dust - settling mechanism (100), including a water tank (101), a water - supply pump (102) connected to the inner cavity of the water tank (101), a delivery pipe (103) connected to the water outlet of the water - supply pump (102), a spray head (104) connected to the other end of the delivery pipe (103), and a pressure - relief valve (105) arranged on the surface of the water outlet of the water - supply pump (102); an unsealing mechanism (200), including an opening - and - closing component (201) arranged inside the spray head (104) for conducting or blocking water flow, a driving component (202) capable of controlling the opening of the opening - and - closing component (201) by using the shock wave generated during an explosion, and a pressure - increasing component (203) for absorbing the pressure of the shock wave and concentrating it to be transmitted to the driving component (202); the opening - and - closing component (201) includes a rotating rod (201a) installed on the inner surface of the spray head (104) through a bearing sleeve, a first swinging column (201b) fixedly installed at the penetrating end of the rotating rod (201a), a first sealing disc (201c) fixedly sleeved on the outer surface of the rotating rod (201a) and used in cooperation with the spray head (104), a second sealing disc (201d) rotatably sleeved on the outer surface of the rotating rod (201a) and used in cooperation with the spray head (104) and the first sealing disc (201c), and a second swinging column (201e) fixedly installed on the outer end face of the second sealing disc (201d).

2. The blasting safety protection device according to claim 1, characterized in that: the driving component (202) includes a fixed frame (202a) fixedly connected to the outer surface of the spray head (104), an inclined - surface extrusion block (202b) in sliding contact with the inner surface of the fixed frame (202a), a transmission column (202c) located on the inclined - surface side of the inclined - surface extrusion block (202b), a slider (202d) fixedly installed on the outer end face of the transmission column (202c), pressure - applying grooves (202e) respectively starting from the inner surfaces on both sides of the slider (202d) and used in cooperation with the first swinging column (201b) and the second swinging column (201e), and a first spring (202f) fixedly installed on the outer surface of the spray head (104) and used for controlling the reset of the slider (202d).

3. The blasting safety protection device according to claim 2, wherein: the inclined - surface extrusion block (202b) abuts against the inclined surface of the transmission column (202c), the outer surface of the slider (202d) is in sliding contact with the inner wall of the fixed frame (202a), the outer surfaces of the second sealing disc (201d) and the second swinging column (201e) are respectively in sliding contact with the inner walls of the two pressure - applying grooves (202e), and the outer end face of the first spring (202f) abuts against the slider (202d).

4. The blasting safety protection device according to claim 3, wherein: The pressurizing assembly (203) includes a fixed sleeve (203a) fixedly connected to the outer surface of the spray head (104), a movable rod (203b) in sliding contact with the inner surface of the fixed sleeve (203a), a force-receiving plate (203c) fixedly installed at the outer end face of the movable rod (203b) and used to receive the explosion shock wave, a force-applying end (203d) fixedly connected to the other end of the movable rod (203b) and used to apply a thrust force to the inclined surface extrusion block (202b), a second spring (203e) sleeved on the outer surface of the movable rod (203b), and a fixed block (203f) fixedly sleeved on the outer surface of the movable rod (203b) and used in cooperation with the force-receiving plate (203c).

5. The blasting safety protection device according to claim 4, wherein: The second spring (203e) is located in the inner cavity of the fixed sleeve (203a), and the outer surface of the fixed block (203f) is in sliding contact with the inner wall of the fixed sleeve (203a).

6. The blasting safety protection device according to claim 5, characterized in that: The unsealing mechanism (200) further includes a delay component (204) for controlling the slow reset of the driving component (202) to extend the dust suppression time, and a protection component (205) for preventing the opening and closing component (201) and the driving component (202) from being damaged by the broken stones generated by the explosion.

7. The blasting safety protection device according to claim 6, characterized in that: The delay component (204) includes a plurality of installation grooves (204a) formed in the inclined surface of the inclined surface extrusion block (202b), a rotating column (204b) fixedly connected to the inner wall of the installation groove (204a), a blocking block (204c) rotatably sleeved on the outer surface of the rotating column (204b) and used in cooperation with the transmission column (202c), a third spring (204d) fixedly installed on the inner wall of the installation groove (204a) and used in cooperation with the blocking block (204c), fourth springs (204e) respectively fixedly installed on both side surfaces of the inclined surface extrusion block (202b), and a limiting rod (204f) fixedly connected to the outer surface of the fixed frame (202a) and used in cooperation with the inclined surface extrusion block (202b).

8. The blasting safety protection device according to claim 7, wherein: The inner surface of the inclined surface extrusion block (202b) is in sliding contact with the outer surface of the limiting rod (204f), the outer end face of the third spring (204d) is fixedly connected to the outer surface of the blocking block (204c), and the outer end face of the fourth spring (204e) is fixedly connected to the outer surface of the inclined surface extrusion block (202b).

9. The blasting safety protection device according to claim 8, characterized in that: The protection component (205) includes a grille (205a) fixedly installed on the inner wall of the spray head (104), and a sealing cover (205b) fixedly connected to the top of the fixed frame (202a).

10. The blasting safety protection device according to claim 9, characterized in that: The grille (205a) is used to prevent the broken stones from damaging the first sealing disc (201c) and the second sealing disc (201d) along with the shock wave, and the sealing cover (205b) is used to protect the components inside the fixed frame (202a).

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