A vibration reduction and dust reduction device for building blasting and a method of using the same

Abstract

The present invention belongs to the technical field of blasting engineering, and provides a vibration reduction and dust reduction device for blasting buildings, comprising a force transmission mechanism, a water-gas vibration reduction base and a pneumatic dust reduction device, wherein the water-gas vibration reduction base comprises a pressing barrel body, a buffer ring is arranged around the top of the pressing barrel body, and the pressing barrel body is placed inside a prefabricated pit, and a method of using the device comprises the following steps: step S1, erection of the device; step S2, vibration reduction and dust reduction; step S3, recovery of the device; the present invention arranges an annular water spray pipe at the bottom of a mounting plate of the force transmission mechanism, and utilizes the characteristic that the force transmission mechanism gradually approaches the ground when pressing down for vibration reduction, and sprays water through a high-pressure nozzle, thereby wetting the ground near the device, thereby effectively suppressing the amount of dust generated by the collapse of objects hitting the ground, thereby cooperating with the pneumatic dust reduction device to improve the dust reduction effect of the device and effectively reduce the amount of dust.

Description

Technical Field

[0001] The invention belongs to the technical field of blasting engineering, and in particular relates to a vibration reduction and dust reduction device for blasting of a building and a method of using the device. Background Art

[0002] With the continuous development of urban construction, the demolition volume of a large number of old structures in the city, such as viaducts and houses, has increased year by year. In the complex urban environment, the hazards of blasting vibration, ground vibration and other hazards during the blasting demolition of structures have seriously affected the safety of surrounding buildings and people. At the same time, the amount of dust generated by blasting demolition is extremely large. If dust reduction cannot be carried out effectively and in real time, the dust in the environment will not only seriously affect the normal production, life and health of residents near the blasting site, but also cause serious pollution to surrounding buildings.

[0003] At present, the measures to reduce the impact of blasting vibration in blasting projects mainly include laying bagged earth ridges or laying vibration-damping pads at the collapsed parts of buildings (structures). Among them, the vibration-damping performance of laying bagged earth ridges is poor, and the collapsed objects will also generate dust radiating outward after touching the bags, which also aggravates the subsequent cleaning work. Due to multiple factors such as poor vibration-damping effects and low economic benefits, measures such as laying vibration-damping pads at the collapsed parts have not been deeply invested in blasting engineering practice and related research. At present, most of the vibration-damping facilities used are relatively simple straw, sandbags and other low-efficiency facilities.

[0004] In addition, CN202021300180.2 is a new type of water air bag used for vibration reduction and dust reduction in structure blasting. Although it can solve the vibration and dust problems caused by the blasting of structures to a certain extent, due to the integrated design of the water air bag body made of elastic material, its scope of action is greatly limited by the manufacturing process and materials. Since only flexible materials are used, the strength issue is not considered, and the blasting fragments can easily puncture it, causing it to fail. The cleaning work after the blasting is completed needs to be carried out on the water air bag body, and it must be completely cleaned before it can be recycled. It is very easy to cause damage to it during the cleaning process, and it cannot be adjusted according to the actual needs of the blasting collapse form, such as directional dumping method, in-situ vertical collapse method, etc., making its usage form single and its versatility poor.

[0005] In summary, it is necessary to research and design a vibration reduction device or system measure with good vibration reduction effect, convenient recovery and recyclable use, and apply it to blasting engineering practice to solve the above problems. Summary of the invention

[0006] The present invention provides a vibration reduction and dust reduction device for blasting of buildings and structures and a method for using the device, which has the advantages of good vibration reduction and dust reduction effects, flexible arrangement, convenient recycling, and recyclable use, thereby solving the technical problems of large construction volume, poor effect, secondary pollution, and inconvenient recycling of low-efficiency vibration reduction facilities currently using simple straw, sandbags, etc.

[0007] The present invention is achieved in that:

[0008] A vibration reduction and dust reduction device for blasting a building structure, comprising a force transmission mechanism, a water-gas vibration reduction base and a pneumatic dust reduction device, wherein the bottom of the force transmission mechanism is slidably connected to the inside of the water-gas vibration reduction base;

[0009] The water-gas vibration reduction base includes a pressing barrel body, a buffer ring is arranged around the top of the pressing barrel body, the pressing barrel body is placed inside the prefabricated pit, and the pressing barrel body is sequentially provided with extrusion air bags and extrusion water bags from bottom to top, and one side of the bottom around the extrusion air bags is provided with inlet and outlet air pipes, and multiple blasting vibration reduction and dust reduction devices of this building are evenly arranged on the ground within the collapsed range of the building to be demolished, and each of the inlet and outlet air pipes is connected to the pneumatic dust reduction device through an air supply pipe, and the pneumatic dust reduction device uses the air in each of the extrusion air bags as a driving force to perform dust reduction treatment;

[0010] The force transmission mechanism includes a mounting plate and a first pressing plate, a plurality of load-bearing columns are evenly fixed near the four sides between the mounting plate and the first pressing plate, and a main water pipe is fixedly connected in the center, a rubber vibration damping plate is fixedly connected to the top of the mounting plate, and a circle of annular water spray pipes is arranged at the bottom, the annular water spray pipes are connected to the top of the main water pipe, and the bottom of the main water pipe is connected to the extrusion water bag, and the first pressing plate is slidably connected to the inside of the pressing barrel.

[0011] Furthermore, a plurality of guide posts are evenly arranged along the vertical direction around the inner wall of the pressing barrel body, guide grooves are evenly opened around the first pressing plate corresponding to the guide posts, the first pressing plate is slidably connected between the plurality of guide posts through the guide grooves, a second pressing plate is arranged between the extrusion air bag and the extrusion water bag, the second pressing plate has exactly the same structural shape as the first pressing plate, and the second pressing plate is also slidably connected between the guide posts.

[0012] Furthermore, a plurality of water supply branches are evenly arranged on the inner ring wall of the annular water spray pipe, and the plurality of water supply branches are all connected to the main water pipe around and near the top, and a plurality of high-pressure nozzles are evenly arranged around the bottom of the annular water spray pipe, and the plurality of high-pressure nozzles are all directed to the ground around the prefabricated pit, and a water inlet manual valve is also arranged on one side around the main water pipe.

[0013] Furthermore, a water inlet nozzle is integrally formed at the top center of the squeezed water bag, and a connecting flange is provided on the outside of the water inlet nozzle. The connecting flange is fastened to the bottom center of the first pressing plate by bolts, and the folded edge of the water inlet nozzle is clamped and fixed between the bottom of the first pressing plate and the top of the connecting flange.

[0014] Furthermore, the pneumatic dust reduction device includes a high-pressure water tank, an air compressor and a dust reduction nozzle. The high-pressure water tank is arranged on the ground near the collapsed range of the building to be demolished. An air compressor is arranged on one side of the high-pressure water tank. A pressure gauge is arranged at the output end of the air compressor and is connected to the input end of the high-pressure water tank through a pressure regulating valve. Multiple air pipes are also connected to the high-pressure water tank through the pressure regulating valve. At least two groups of dust reduction nozzles are connected to the output end of the high-pressure water tank through pipelines. Each of the pipelines is provided with an on-off valve. The two groups of dust reduction nozzles are respectively arranged on the ground near the collapsed range of the building to be demolished and are arranged opposite to each other.

[0015] Furthermore, air pipe grooves are provided between two adjacent rows of the prefabricated pits, the air supply pipes are provided in the corresponding air pipe grooves, and the tops of the air pipe grooves are covered with protective plates.

[0016] A method for using a vibration reduction and dust reduction device for blasting a building structure comprises the following specific steps:

[0017] Step S1, setting up the device,

[0018] The collapsed range of the structure to be demolished is calculated by design, and then multiple prefabricated pits are reasonably set within the range to cover it, and then the device is placed, and the water-gas vibration reduction base is made stable; a high-pressure water tank of the pneumatic dust suppression device is set at a suitable position, and two groups of dust suppression nozzles are set on opposite sides of the collapsed range, and multiple devices are divided into multiple groups. After the inlet and outlet pipes of each group are connected in series through an air supply pipe, multiple air supply pipes are connected in series to the pressure regulating valve of the high-pressure water tank, and compressed air is passed through the air compressor equipment through each air supply pipe into each extrusion air bag for standby use, and each extrusion water bag is filled with water for standby use by connecting the water source to the water inlet manual valve;

[0019] Step S2: vibration reduction and dust reduction.

[0020] When an explosion occurs, the pressure of the collapsed structure is dispersed and acts on each force transmission mechanism, and the pressure is transmitted to the water-gas vibration reduction base through the force transmission mechanism, and the water bag is squeezed and deformed by pressure, so that the clean water in each squeezed water bag enters the annular water spray pipe through the main water pipe and each water supply branch pipe, and is sprayed out through the high-pressure nozzle to wet the ground around the device to reduce the dust raised on the ground; and the air bag is squeezed and deformed by pressure, so that the air in each squeezed air bag is squeezed out, and is finally input into the high-pressure water tank through the air inlet and outlet pipes and the air supply pipe, and then the clean water in the high-pressure water tank is sprayed out through each dust reduction nozzle and sprayed on the collapsed range to further settle the raised floating and sinking. When the pressure in the high-pressure water tank is insufficient, the air pressure is supplemented by starting the air compressor.

[0021] Step S3, recovery of the device,

[0022] After the blasting is completed, the force transmission mechanism is pressed into the water-gas vibration reduction base due to the pressure, and the rubber vibration reduction plate is flush with the prefabricated pit mouth. The device can be taken out as a whole by clearing the covering building debris.

[0023] The beneficial effects of the present invention are:

[0024] 1. The present invention sets the vibration reduction unit as an integral and firm structure, cooperates with the water-gas vibration reduction base through the force transmission mechanism, and utilizes the squeezed water bag and squeezed air bag arranged inside the water-gas vibration reduction base, so as to effectively buffer the impact force generated by the collapsed objects of the vibration reduction structure, and convert the impact force into the driving force of the pneumatic dust reduction device, and sprays the collapsed area through the pneumatic dust reduction device to achieve the purpose of dust reduction, saves the energy consumption of dust reduction through the conversion and sedimentation of potential energy, thereby effectively reducing the cost of engineering blasting, making the blasting project more energy-saving and environmentally friendly, and minimizing the interference to the surrounding residents.

[0025] 2. The present invention arranges an annular water spray pipe at the bottom of the mounting plate of the force transmission mechanism, and utilizes the characteristic that the force transmission mechanism gradually approaches the ground when it is pressed down for vibration reduction. Through the compression of the squeezed water bag, the internal clean water is injected into the annular water spray pipe through the main water pipe, and sprayed out through the high-pressure nozzle, so as to wet the ground near the device, thereby effectively suppressing the amount of dust generated by the collapsed objects hitting the ground, thereby cooperating with the pneumatic dust reduction device to improve the dust reduction effect of the device. The squeezed water bag converts the potential energy of the collapse into the kinetic energy of clean water spraying the ground, which not only plays a vibration reduction role but also assists in dust reduction, effectively reducing the amount of dust.

[0026] 3. This device is designed as an integral whole, so it can be flexibly arranged in different forms of collapse due to different blasting methods, and the single unit can be flexibly moved and folded. After blasting, it can be dismantled and transferred one by one. The force transmission mechanism after vibration reduction extends into the water-gas vibration reduction base, and the top is flush with the ground, which will not affect the normal cleaning work. It has flexible layout, strong versatility, easy recovery and recyclability.

[0027] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the device;

[0030] Figure 2 It is a schematic diagram of the full cross-sectional plan structure of the device;

[0031] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A;

[0032] Figure 4 It is a schematic diagram of the overall layout structure of the device;

[0033] Figure 5 The figure is a flow chart of the method of using the device.

[0034] Description of reference numerals:

[0035] 1. Force transmission mechanism; 101. Rubber vibration damping plate; 102. Mounting plate; 103. Annular water spray pipe; 10301. Water supply branch pipe; 10302. High-pressure nozzle; 104. Load-bearing column; 105. Main water pipe; 106. First pressing plate; 107. Buffer ring; 108. Guide groove; 109. Water inlet hand valve; 110. Connecting flange; 2. Water-gas vibration damping base; 201. Press barrel; 202 , squeezing water bag; 20201, water inlet nozzle; 203, guide column; 204, second pressing plate; 205, squeezing air bag; 206, air inlet and outlet pipes; 3, prefabricated pit; 4, air pipe groove; 5, air supply pipe; 6, pneumatic dust suppression device; 601, high-pressure water tank; 602, air compressor equipment; 603, dust suppression nozzle; 604, pressure gauge; 605, pressure regulating valve; 606, on-off valve; 7, building to be demolished. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] Example

[0040] Specific as Figure 1-4 Provided is a vibration reduction and dust reduction device for building blasting, comprising a force transmission mechanism 1, a water-gas vibration reduction base 2 and a pneumatic dust reduction device 6, wherein the bottom of the force transmission mechanism 1 is slidably connected to the inside of the water-gas vibration reduction base 2;

[0041] The water-gas vibration reduction base 2 includes a pressing barrel 201, a buffer ring 107 is arranged around the top of the pressing barrel 201, the pressing barrel 201 is placed inside the prefabricated pit 3, and the pressing barrel 201 is provided with extrusion air bags 205 and extrusion water bags 202 from bottom to top in sequence, and one side of the bottom around the extrusion air bags 205 is provided with inlet and outlet air pipes 206. A plurality of blasting vibration reduction and dust reduction devices of this structure are evenly arranged on the ground within the collapsed range of the building 7 to be demolished, and each inlet and outlet air pipe 206 is connected to the pneumatic dust reduction device 6 through the air supply pipe 5. The pneumatic dust reduction device 6 uses the air in each extrusion air bag 205 as a driving force to perform dust reduction treatment;

[0042] The force transmission mechanism 1 includes a mounting plate 102 and a first pressing plate 106. A plurality of load-bearing columns 104 are evenly fixed near the four sides between the mounting plate 102 and the first pressing plate 106, and a main water pipe 105 is fixedly connected in the center. A rubber vibration damping plate 101 is fixedly connected to the top of the mounting plate 102, and a circle of annular water spray pipes 103 are arranged at the bottom. The annular water spray pipe 103 is connected to the top of the main water pipe 105, and the bottom of the main water pipe 105 is connected to the extrusion water bag 202. The first pressing plate 106 is slidably connected to the inside of the pressing barrel 201.

[0043] The inner ring wall of the annular water spray pipe 103 is evenly provided with a plurality of water supply branches 10301, and the plurality of water supply branches 10301 are all connected to the main water pipe 105 around and close to the top. A plurality of high-pressure nozzles 10302 are evenly provided around the bottom of the annular water spray pipe 103, and the plurality of high-pressure nozzles 10302 are all directed to the ground around the prefabricated pit 3. A water inlet manual valve 109 is also provided on one side around the main water pipe 105, and the water inlet manual valve 109 can be connected to an external water source to inject water into the extruded water bag 202.

[0044] A water inlet nozzle 20201 is integrally formed at the top center of the squeezed water bag 202, and a connecting flange 110 is provided on the outside of the water inlet nozzle 20201. The connecting flange 110 is fastened to the bottom center of the first pressing plate 106 by bolts, and the folded edge of the water inlet nozzle 20201 is clamped and fixed between the bottom of the first pressing plate 106 and the top of the connecting flange 110.

[0045] A plurality of guide posts 203 are evenly arranged along the vertical direction around the inner wall of the pressing barrel body 201, and guide grooves 108 are evenly opened around the first pressing plate 106 corresponding to the guide posts 203. The first pressing plate 106 is slidably connected between the plurality of guide posts 203 through the guide grooves 108. A second pressing plate 204 is arranged between the extrusion air bag 205 and the extrusion water bag 202. The second pressing plate 204 has exactly the same structural shape as the first pressing plate 106, and the second pressing plate 204 is also slidably connected between the guide posts 203. By evenly opening guide grooves 108 around the first pressing plate 106 and the second pressing plate 104, and by evenly setting guide grooves 108 around the inner wall of the pressing barrel body 201, the force transmission mechanism 1 can transmit pressure evenly and smoothly, preventing the pressing plate from tipping over and getting stuck, thereby further improving the working efficiency of the device, ensuring that the device wets the surrounding ground, stabilizes vibration reduction, and effectively transmits air.

[0046] Specific as Figure 1-3As shown, by using pressure-resistant and elastic materials such as rubber, etc. to make squeeze water bags 202 and squeeze air bags 205, and using metal structures to make force transmission mechanism 1, a rubber vibration reduction plate 101 with a thickness of more than 20 cm is set on the top of the mounting plate 102 to resist the falling pressure of collapsed building materials, thereby preventing the steel structure from deforming and achieving a certain vibration reduction effect. At the same time, the pressure is transmitted to the squeeze water bags 202 and squeeze air bags 205 vertically arranged inside the water-gas vibration reduction base 2 through the force transmission mechanism 1. The squeeze water bag 202 converts pressure into power, and the clean water inside is discharged through the main water pipe 105 through each water supply branch pipe 10301, the annular water spray pipe After 103, it is sprayed out from each high-pressure nozzle 10302 to wet the ground around the device, thereby reducing the amount of dust raised by the collapse of the structure. At the same time, the squeezing airbag 205 converts the pressure into internal air transmission power. The air passes through the inlet and outlet pipes 206 and the air pipe 5 into the high-pressure water tank 601 as the driving force of the pneumatic dust reduction device 6 to reduce the raised dust. In this process, the potential energy of the collapse of the structure is buffered and converted by the squeezing water bags 202 and the squeezing airbags 205, thereby achieving the purpose of vibration reduction of the device, and the potential energy is used as kinetic energy for dust reduction, thereby realizing the energy-saving and environmental protection function of the device.

[0047] The pneumatic dust reduction device 6 includes a high-pressure water tank 601, an air compressor 602 and a dust reduction nozzle 603. The high-pressure water tank 601 is arranged on the ground near the collapsed range of the building 7 to be demolished. The air compressor 602 is arranged on one side of the high-pressure water tank 601. A pressure gauge 604 is arranged at the output end of the air compressor 602 and is connected to the input end of the high-pressure water tank 601 through a pressure regulating valve 605. Multiple air pipes 5 are also connected to the high-pressure water tank 601 through the pressure regulating valve 605. At least two groups of dust reduction nozzles 603 are connected to the output end of the high-pressure water tank 601 through pipelines. Each pipeline is provided with an on-off valve 606. The two groups of dust reduction nozzles 603 are respectively arranged on the ground near the collapsed range of the building 7 to be demolished and are arranged opposite to each other.

[0048] Air pipe grooves 4 are provided between two adjacent rows of prefabricated pits 3 , and air delivery pipes 5 are provided in the corresponding air pipe grooves 4 . The tops of the air pipe grooves 4 are covered with protective plates.

[0049] Specific as Figure 4As shown, the high-pressure water tank 601 is a conventional equipment in the fields of fire protection and sanitation, and the air compressor 602 is also a well-known prior art, so their working principles are no longer repeated here. The device converts the potential energy of the collapse of the building into the kinetic energy of squeezing the airbag 205 to transport air, and converts it into the kinetic energy of the high-pressure water tank 601 to reduce vibration while reasonably reducing the working energy consumption of the pneumatic dust suppression device 6. The air is stably input into the high-pressure water tank 601 through the air inlet and outlet pipes 206, the air pipe 5 and the pressure regulating valve 605 to control the flow rate, and high-pressure water mist is sprayed through the dust suppression nozzle 603 arranged near the collapse range to suppress the raised dust. At the same time, the internal pressure of the high-pressure water tank 601 is detected by the pressure gauge 604, and it is replenished in time through the air compressor 602, so that the device can suppress the dust raised within the collapse range of the building at low energy consumption, and effectively prevent the raised dust from polluting the surrounding environment and other buildings.

[0050] Another instant noodle, such as Figure 5 As shown, the present invention provides a method for using a vibration reduction and dust reduction device for blasting a building, comprising the following specific steps:

[0051] Step S1, setting up the device,

[0052] The collapsed range of the structure to be demolished is calculated by design, and then a plurality of prefabricated pits 3 are reasonably arranged within the range for covering, and then the device is placed, and the water-gas vibration reduction base 2 is made stable; a high-pressure water tank 601 of a pneumatic dust suppression device 6 is arranged at a suitable position, and two groups of dust suppression nozzles 603 are arranged on opposite sides of the collapsed range, and a plurality of the devices are divided into a plurality of groups, and the inlet and outlet air pipes 206 of each group are connected in series through an air supply pipe 5, and a plurality of air supply pipes 5 are connected in series to a pressure regulating valve 605 of the high-pressure water tank 601, and compressed air is passed through each air supply pipe 5 into each extrusion air bag 205 for standby use through the air compressor 602, and each extrusion water bag 202 is filled with water for standby use by connecting the water source to the water inlet manual valve 109;

[0053] Step S2: vibration reduction and dust reduction.

[0054] When the explosion occurs, the pressure of the collapsed structure is dispersed and acts on each force transmission mechanism 1, and the pressure is transmitted to the base of the water-gas vibration reduction base 2 through the force transmission mechanism 1, and the water bag 202 is squeezed and deformed by pressure, so that the clean water in each squeezed water bag 202 enters the annular water spray pipe 103 through the main water pipe 105 and each water supply branch pipe 10301, and is sprayed out through the high-pressure nozzle 10302 to wet the ground around the device to reduce the dust on the ground; and the air bag 205 is squeezed and deformed by pressure, so that the air in each squeezed air bag 205 is squeezed out, and is finally input into the high-pressure water tank 601 through the air inlet and outlet pipes 206 and the air supply pipe 5, and then the clean water in the high-pressure water tank 601 is sprayed out through each dust reduction nozzle 603 and sprayed on the collapsed range to further settle the raised floating and sinking. When the pressure in the high-pressure water tank 601 is insufficient, the air pressure is supplemented by starting the air compressor 602.

[0055] Step S3, recovery of the device,

[0056] After the blasting is completed, the force transmission mechanism 1 is pressed into the water-gas vibration reduction base 2 due to the pressure, and the rubber vibration reduction plate 101 is flush with the prefabricated pit 3. The device can be taken out as a whole by clearing the covering building debris.

[0057] It should be noted that if Figure 4 The on-site layout shown is only a specific form set up to adapt to the characteristics of blasting collapse of the structure in this embodiment, and other forms of layout can be adaptively used according to different forms of blasting collapse of the structure, such as: directional dumping method, in-situ vertical collapse method, so other forms of layout should also be included in the protection scope of this application.

[0058] It should be understood that the specific order or hierarchy of steps in the disclosed process is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process can be rearranged without departing from the scope of protection of the present disclosure. The attached method claims present the elements of the various steps in an exemplary order and are not intended to be limited to a specific order or hierarchy.

[0059] In the above detailed description, various features are grouped together in a single embodiment to simplify the disclosure. This method of disclosure should not be interpreted as reflecting an intention that the embodiments of the claimed subject matter require more features than are clearly stated in each claim. On the contrary, as reflected in the appended claims, the invention is in a state of having less than all the features of the disclosed individual embodiments. Therefore, the appended claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.

[0060] The above description includes examples of one or more embodiments. Of course, it is impossible to describe all possible combinations of components or methods for the purpose of describing the above embodiments, but it should be recognized by those skilled in the art that the various embodiments may be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications and variations that fall within the scope of protection of the appended claims. In addition, with respect to the term "comprising" used in the specification or claims, the word is covered in a manner similar to the term "including", just as "including," is explained as a transitional word in the claims. In addition, any term "or" used in the specification of the claims is intended to mean "non-exclusive or".

Claims

1. A vibration reduction and dust reduction device for building blasting, characterized in that: It includes a force transmission mechanism, a water-gas vibration reduction base and a pneumatic dust reduction device, wherein the bottom of the force transmission mechanism is slidably connected to the inside of the water-gas vibration reduction base; The water-gas vibration reduction base includes a pressing barrel body, which is placed inside the prefabricated pit. A buffer ring is arranged around the top of the pressing barrel body. An extrusion air bag and an extrusion water bag are arranged in sequence from bottom to top inside the pressing barrel body. One side of the bottom around the extrusion air bag is provided with an inlet and outlet air pipe. Multiple blasting vibration reduction and dust reduction devices of this structure are evenly arranged on the ground within the collapsed range of the building to be demolished. Each of the inlet and outlet air pipes is connected to the pneumatic dust reduction device through an air supply pipe. The pneumatic dust reduction device uses the air in each of the extrusion air bags as a driving force to perform dust reduction treatment; The force transmission mechanism includes a mounting plate and a first pressing plate, a plurality of load-bearing columns are evenly fixed near the four sides between the mounting plate and the first pressing plate, and a main water pipe is fixedly connected in the center, a rubber vibration damping plate is fixedly connected at the top of the mounting plate, and a circle of annular water spray pipes are arranged at the bottom, the annular water spray pipes are communicated with the top of the main water pipe, and the bottom of the main water pipe is communicated with the squeeze water bag, and the first pressing plate is slidably connected to the inside of the pressing barrel; A plurality of guide posts are evenly arranged along the vertical direction around the inner wall of the pressing barrel, and guide grooves are evenly arranged around the first pressing plate corresponding to the guide posts. The first pressing plate is slidably connected between the plurality of guide posts through the guide grooves. A second pressing plate is arranged between the extrusion air bag and the extrusion water bag. The second pressing plate has the same structure and shape as the first pressing plate, and the second pressing plate is also slidably connected between the guide posts. The inner ring wall of the annular water spray pipe is evenly provided with a plurality of water supply branches, and the plurality of water supply branches are connected to the main water pipe around and near the top; a plurality of high-pressure nozzles are evenly provided around the bottom of the annular water spray pipe, and the plurality of high-pressure nozzles are directed to the ground around the prefabricated pit; a water inlet manual valve is also provided on one side around the main water pipe.

2. The device for reducing vibration and dust during blasting of buildings and structures according to claim 1, characterized in that: A water inlet nozzle is integrally formed at the top center of the squeezed water bag, and a connecting flange is provided on the outside of the water inlet nozzle. The connecting flange is fastened to the bottom center of the first pressing plate by bolts, and the folded edge of the water inlet nozzle is clamped and fixed between the bottom of the first pressing plate and the top of the connecting flange.

3. The device for reducing vibration and dust during blasting of buildings and structures according to claim 1, characterized in that: The pneumatic dust reduction device includes a high-pressure water tank, an air compressor and a dust reduction nozzle. The high-pressure water tank is arranged on the ground near the collapsed range of the building to be demolished. An air compressor is arranged on one side of the high-pressure water tank. A pressure gauge is arranged at the output end of the air compressor and is connected to the input end of the high-pressure water tank through a pressure regulating valve. A plurality of air pipes are also connected to the high-pressure water tank through the pressure regulating valve. At least two groups of dust reduction nozzles are connected to the output end of the high-pressure water tank through pipelines. Each of the pipelines is provided with an on-off valve. The two groups of dust reduction nozzles are respectively arranged on the ground near the collapsed range of the building to be demolished and are arranged opposite to each other.

4. The device for reducing vibration and dust during blasting of buildings and structures according to claim 3, characterized in that: Air pipe grooves are arranged between two adjacent rows of the prefabricated pits, the air delivery pipes are arranged in the corresponding air pipe grooves, and the tops of the air pipe grooves are covered with protective plates.

5. A method for using a vibration reduction and dust reduction device for blasting a building, which is applied to a vibration reduction and dust reduction device for blasting a building as claimed in any one of claims 1 to 4, characterized in that: The specific steps include: Step S1, setting up the device, The collapsed range of the structure to be demolished is calculated by design, and then multiple prefabricated pits are reasonably set within the range to cover it, and then the device is placed, and the water-gas vibration reduction base is made stable; a high-pressure water tank of the pneumatic dust suppression device is set at a suitable position, and two groups of dust suppression nozzles are set on opposite sides of the collapsed range, and multiple devices are divided into multiple groups. After the inlet and outlet pipes of each group are connected in series through an air supply pipe, multiple air supply pipes are connected in series to the pressure regulating valve of the high-pressure water tank, and compressed air is passed through the air compressor equipment through each air supply pipe into each extrusion air bag for standby use, and each extrusion water bag is filled with water for standby use by connecting the water source to the water inlet manual valve; Step S2: vibration reduction and dust reduction. When the explosion occurs, the pressure of the collapsed building is dispersed and acts on each force transmission mechanism, and the pressure is transmitted to the water-gas vibration reduction base through the force transmission mechanism, and the water bags are squeezed and deformed, so that the clean water in each squeezed water bag enters the annular water spray pipe through the main water pipe and each water supply branch pipe, and is sprayed out through the high-pressure nozzle to wet the ground around the device to reduce the dust on the ground; and the air bags are squeezed and deformed, so that the air in each squeezed air bag is squeezed out, and finally input into the high-pressure water tank through the air inlet and outlet pipes and the air supply pipe, and then the clean water in the high-pressure water tank is sprayed out through each dust suppression nozzle and sprayed on the collapsed range to further settle the raised floating and sinking. When the pressure in the high-pressure water tank is insufficient, the air pressure is supplemented by starting the air compressor. Step S3, recovery of the device, After the blasting is completed, the force transmission mechanism is pressed into the water-gas vibration reduction base due to the pressure, and the rubber vibration reduction plate is flush with the prefabricated pit mouth. The device can be taken out as a whole by clearing the covering building debris.

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