Directional blasting damping device

Abstract

The utility model belongs to the technical field of blasting equipment, and particularly relates to a directional blasting damping device which comprises a protective air bag, a damping device and a damping device. The protective air bag further comprises a supporting bag body, the supporting bag body can be expanded and unfolded to form a wall shape, and a channel penetrating through the supporting bag body in the thickness direction of the supporting bag body is formed in the supporting bag body. The impact absorption capsule body can be expanded and expanded to form a wall shape, the impact absorption capsule body is located on the side, facing the blasting operation, of the supporting capsule body, and an exhaust port is formed in the side, opposite to the supporting capsule body, of the impact absorption capsule body; wherein the exhaust port of the impact absorption bag body can extend to the channel of the supporting bag body, and when the impact absorption bag body is acted or collided by blasting wind or flying stones, gas filled in the impact absorption bag body responds to and is exhausted from the exhaust port. The protection performance, the annular adaptability and the stability of the directional blasting protection device are effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of blasting equipment technology, and in particular relates to a directional blasting vibration damping device. Background Technology

[0002] Directional blasting is a common blasting method in engineering blasting, widely used in mine tunnel blasting. It employs shaped charge charges or shaped charge devices for directional pre-splitting blasting. During directional blasting, while the blast wind propagates through the air, flyrock is scattered in all directions. To prevent this blast wind and flyrock from damaging equipment within the tunnel or mine and to ensure the safety of workers, appropriate vibration damping and protection measures are essential. Common directional blasting vibration damping and protection devices typically consist of protective plates or protective airbags. For example, a directional blasting protection device disclosed in patent application number CN201621434554.3 includes a protective plate comprising a straight plate and a curved plate. The curved plate is located above the straight plate and is integrally formed with it. The front left side of the straight plate is provided with several first fixing mechanisms. The first fixing mechanism includes a fixing plate, a rigid support column, and a tie rod. The fixing plate and the rigid support column are integrally formed. The tie rod is inclined and its lower end is fixed to the upper end face of the rigid support column. The upper end of the tie rod is welded to the front left side face of the straight plate. The fixing plate has several screw holes, and bolts are correspondingly installed in the screw holes. The rear side of the straight plate has a second fixing mechanism corresponding to the front left side face. The second fixing mechanism has the same structure as the first fixing mechanism and is welded to the rear side of the straight plate. However, although the protective plate has high protective performance, its installation is relatively inconvenient and its adaptability to the environment is low. Although the protective airbag is relatively easy to place and has good environmental adaptability, it is prone to damage and has low working stability. Therefore, it is necessary to improve the existing directional blasting vibration reduction device. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned technical problems by providing a directional blasting vibration damping device to improve its protective properties, annular adaptability, and stability.

[0004] In view of this, the present invention provides a directional blasting shock absorption device, comprising:

[0005] A protective airbag, which can inflate and expand to form a wall-like structure;

[0006] The protective airbag also includes:

[0007] A support bladder, which can expand and unfold to form a wall, and the support bladder has a channel that penetrates the support bladder along the thickness direction of the support bladder.

[0008] The impact-absorbing bladder is expandable to form a wall. The impact-absorbing bladder is located on the side of the supporting bladder facing the blasting operation. The side of the impact-absorbing bladder opposite to the supporting bladder has an exhaust port.

[0009] The exhaust port of the impact-absorbing bladder can extend to the channel of the supporting bladder. When the impact-absorbing bladder is hit or collided with by the blasting wind or flying rocks, the gas filling the impact-absorbing bladder responds and is discharged from the exhaust port.

[0010] In this technical solution, during directional blasting operations, the support bladder and impact-absorbing bladder of the protective airbag expand and unfold in the mine or tunnel to form a wall. The support bladder and impact-absorbing bladder can fully adapt to the annular shape, reducing residual gaps. The support bladder can provide the main support and protection, blocking the blast wind or flying rocks from being transmitted outward. The impact-absorbing bladder can respond to the impact through the fluid damping generated when the gas is discharged from the exhaust port, thereby protecting against the energy and vibration brought by the impact. Furthermore, since the gas in the impact-absorbing bladder can be discharged through the exhaust port, the impact-absorbing bladder is not prone to breakage when facing an impact. Compared with the prior art, this utility model effectively improves the protective performance, annular adaptability, and stability of the directional blasting protective device.

[0011] Furthermore, the above technical solution also includes:

[0012] A protective support is provided on the side of the impact-absorbing bladder facing the blasting operation. The protective support includes a base that contacts the ground and a protective plate that is connected to the side of the impact-absorbing bladder.

[0013] The base is fixedly connected to the protective plate.

[0014] In the above technical solution, the impact-absorbing bladder is further inflated continuously by a blower after it expands and unfolds.

[0015] In the above technical solution, the exhaust port of the impact absorption bladder further includes a valve body to maintain the shape of the impact absorption bladder after it expands and to discharge the gas inside the impact absorption bladder through the exhaust port when the impact absorption bladder is impacted.

[0016] In the above technical solution, the impact-absorbing bladder is further composed of a bladder body, a wear-resistant layer on the outer surface of the bladder body, a fiber layer on the inner surface of the bladder body, and reinforcing ribs between the fiber layer and the bladder body.

[0017] In the above technical solution, the protective plate is further formed by a stack of non-viscoelastic damping materials.

[0018] In the above technical solution, the stacked layer is further composed of a wood layer, a composite fiber layer, a honeycomb layer, a corrugated layer and a metal layer.

[0019] The beneficial effects of this utility model are:

[0020] 1. By setting up a support bladder and an impact absorption bladder, the gas inside the impact absorption bladder can respond to the impact through the exhaust port, which effectively improves the protective performance, annular adaptability and stability of the directional blasting protection device.

[0021] 2. The strength of the impact-absorbing bladder can be further improved by adding wear-resistant layers, reinforcing ribs, and fiber layers, reducing the occurrence of damage to the impact-absorbing bladder; 3. The support effect of the protective bladder can be further improved by adding protective brackets and protective plates, while also improving the protection and shock absorption performance for blasting operations. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a specific embodiment of the present utility model.

[0024] Figure 2 This is a schematic diagram of the protective bracket structure of this utility model.

[0025] Figure 3 This is a schematic cross-sectional view of the present invention.

[0026] Figure 4 This is a schematic diagram of the impact-absorbing capsule structure of this utility model.

[0027] Figure 5 This is a schematic diagram of the protective plate structure of this utility model.

[0028] The markings in the diagram represent: 1. Protective airbag; 100. Supporting airbag; 101. Impact-absorbing airbag; 2. Channel; 3. Exhaust port; 4. Protective bracket; 5. Base; 6. Protective plate; 7. Airbag body; 8. Wear-resistant layer; 9. Fiber layer; 10. Reinforcing rib; 11. Wood layer; 12. Composite fiber layer; 13. Honeycomb layer; 14. Corrugated layer; 15. Metal layer. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] 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.

[0031] Example 1:

[0032] This application provides a directional blasting shock absorption device, including: a protective airbag 1, which can expand and unfold to form a wall shape;

[0033] The protective airbag 1 also includes: a support bladder 100, which can expand and unfold to form a wall, and has a channel 2 extending through the support bladder 100 along its thickness direction; and an impact-absorbing bladder 101, which can expand and unfold to form a wall, located on the side of the support bladder 100 facing the blasting operation, and has an exhaust port 3 on the side of the impact-absorbing bladder 101 opposite to the support bladder 100.

[0034] Among them, the exhaust port 3 of the impact absorption bladder 101 can extend to the channel 2 supporting the bladder 100. When the impact absorption bladder 101 is affected or collided with by the blasting wind or flying rocks, the gas filling the impact absorption bladder 101 responds and is discharged from the exhaust port 3.

[0035] Preferably, the impact absorption bladder 101 is continuously inflated by a blower after it expands and unfolds.

[0036] Alternatively, the exhaust port 3 of the shock-absorbing bladder 101 may have a valve body to maintain the shape of the shock-absorbing bladder 101 after it expands and to discharge the gas inside the shock-absorbing bladder 101 through the exhaust port 3 when the shock-absorbing bladder 101 is impacted.

[0037] Furthermore, both the impact-absorbing bladder 101 and the support bladder 100 have conventional inflation and deflation ports and are expanded and deployed by conventional blowers or other inflation systems. The impact-absorbing bladder 101 and the support bladder 100 can be directly bonded by conventional adhesives or by hot melt adhesives, or they can be arranged separately from each other.

[0038] In this embodiment, during directional blasting operations, the support bladder 100 and the impact-absorbing bladder 101 of the protective airbag 1 expand and unfold in the mine or tunnel to form a wall. The support bladder 100 and the impact-absorbing bladder 101 can fully adapt to the annular shape, reducing residual gaps. The support bladder 100 can provide the main support and protection, blocking the blast wind or flying rocks from being transmitted outward. The impact-absorbing bladder 101 can respond to the impact through the fluid damping generated when the gas is discharged from the exhaust port 3, thereby protecting against the energy and vibration brought by the impact. Furthermore, since the gas in the impact-absorbing bladder 101 can be discharged through the exhaust port 3, the impact-absorbing bladder 101 is not prone to breakage when facing an impact. Compared with the prior art, this utility model effectively improves the protective performance, annular adaptability, and stability of the directional blasting protection device.

[0039] Example 2:

[0040] This embodiment provides a directional blasting shock absorption device. In addition to the technical solutions of the above embodiments, it also has the following technical features, including: a protective bracket 4. The protective bracket 4 is disposed on the side of the impact absorption bladder 101 facing the blasting operation. The protective bracket 4 includes a base 5 in contact with the ground and a protective plate 6 connected to the side of the impact absorption bladder 101.

[0041] The base 5 is fixedly connected to the protective plate 6.

[0042] The protective plate 6 is formed by stacked layers of non-viscoelastic damping material.

[0043] The stacked layers consist of a wood layer 11, a composite fiber layer 12, a honeycomb layer 13, a corrugated layer 14, and a metal layer 15.

[0044] Furthermore, the protective plate 6 and the side of the impact absorption bladder 101 can be bonded together with adhesive or arranged separately. The base 5 is a conventional support seat. Preferably, the base 5 can be a triangular frame. The base 5 can have several units and be spaced apart along the width direction of the protective airbag 1. The bottom of the protective plate 6 is fixedly connected to the top of the base 5. The stacked layers can be bonded together with adhesive.

[0045] In this embodiment, the stacked layers consist of a wood layer 11, a composite fiber layer 12, a honeycomb layer 13, a corrugated layer 14, and a metal layer 15. During blasting operations, the impedance difference and the differences in texture and arrangement direction of different material structures are used to reflect, attenuate, and deflect the shock wave. At the same time, plastic deformation is used to absorb the impact energy, further improving the protective effect of the directional blasting shock absorption device against blasting blast winds or flying rocks.

[0046] Example 3:

[0047] This embodiment provides a directional blasting shock absorption device. In addition to the technical solutions of the above embodiments, it also has the following technical features: the impact absorption bladder 101 is composed of a bladder body 7, a wear-resistant layer 8 located on the outer surface of the bladder body 7, a fiber layer 9 located on the inner surface of the bladder body 7, and reinforcing ribs 10 between the fiber layer 9 and the bladder body 7.

[0048] Moreover, the reinforcing rib 10 can be integrally formed with the main body 7 of the bladder.

[0049] In this embodiment, the strength of the impact-absorbing bladder 101 can be further improved by the addition of the wear-resistant layer 8, the reinforcing ribs 10, and the fiber layer 9, thereby reducing the occurrence of damage to the impact-absorbing bladder 101. The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features described in 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, under the guidance of this application, can make many other modifications without departing from the spirit and scope of the claims, all of which fall within the protection scope of this application.

Claims

1. A directional blasting shock absorption device, comprising: a protective airbag (1) which is inflatable and expandable to form a wall; characterized in that the protective airbag (1) further comprises: a supporting bag body (100) which is inflatable and expandable to form a wall, the supporting bag body (100) having a channel (2) extending through the supporting bag body (100) in the thickness direction of the supporting bag body (100); a shock absorption bag body (101) which is inflatable and expandable to form a wall, the shock absorption bag body (101) being located on the side of the supporting bag body (100) facing the blasting operation, the shock absorption bag body (101) having an exhaust port (3) on the side opposite to the supporting bag body (100); wherein the exhaust port (3) of the shock absorption bag body (101) can extend to the channel (2) of the supporting bag body (100), and when the shock absorption bag body (101) is hit by the blast wind or flying stone of the blasting, the gas filled in the shock absorption bag body (101) is discharged from the exhaust port (3) in response.

2. A directional blast mitigation device according to claim 1, wherein, further comprising: a protective support (4) provided on the side of the shock absorption bag body (101) facing the blasting operation, the protective support (4) comprising a base (5) in contact with the ground and a protective plate (6) connected to the side of the shock absorption bag body (101); wherein the base (5) and the protective plate (6) are fixedly connected.

3. A directional blast mitigation device according to claim 1, wherein: The shock absorption bag body (101) is continuously inflated by a blower after being inflated and expanded.

4. A directional blast mitigation device according to claim 1, wherein: The exhaust port (3) of the shock absorption bag body (101) has a valve body to maintain the shape of the shock absorption bag body (101) after being inflated and expanded and to discharge the gas inside the shock absorption bag body (101) from the exhaust port (3) when the shock absorption bag body (101) is hit.

5. A directional blast mitigation device according to claim 1, wherein: The shock absorption bag body (101) is composed of a bag body (7), a wear-resistant layer (8) on the outer surface of the bag body (7), a fiber layer (9) on the inner surface of the bag body (7), and a reinforcing rib (10) between the fiber layer (9) and the bag body (7).

6. A directional blast mitigation device according to claim 2, wherein: The protective plate (6) is formed by a stack of layers of non-viscoelastic shock absorption material.

7. A directional blast mitigation device according to claim 6, wherein: The stack of layers is composed of a wooden layer (11), a composite fiber layer (12), a honeycomb layer (13), a corrugated layer (14), and a metal layer (15).

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