Anti-explosion protection structure and anti-explosion device

Abstract

The utility model discloses an antiknock protection structure and antiknock device.The antiknock protection structure comprises an antiknock body and a composite antiknock plate, the antiknock body is used for being connected with a target protection object, the composite antiknock plate comprises an antiknock base plate layer and an anti-impact plate layer which are arranged in a stacked mode, the antiknock base plate layer is connected to the antiknock body in the antiknock direction of the antiknock body, and the anti-impact plate layer is connected to the antiknock body in the antiknock direction of the antiknock body. A polyurea elastic layer is clamped between the anti-explosion base plate layer and the anti-impact plate layer, and an anti-penetration layer is arranged on the side, away from the polyurea elastic layer, of the anti-impact plate layer in a stacked mode. The fragments generated by explosion impact the composite anti-explosion plate at a high speed, the anti-penetration layer can resist the fragments and prevent the fragments from drilling in or penetrating through the composite anti-explosion plate, the anti-explosion base plate layer and the anti-impact plate layer can resist the impact force of the fragments, the polyurea elastic layer is used for buffering and energy absorption, the explosion vibration and the fragment impact are further reduced, and the anti-explosion effect of the composite anti-explosion plate is improved. And the anti-explosion base plate layer, the polyurea elastic layer, the anti-impact plate layer and the anti-penetration layer are matched with one another to achieve fragment protection, and good energy absorption, impact reduction, vibration isolation and anti-penetration performance is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of explosion-proof structures, and in particular relates to an explosion-proof protective structure and an explosion-proof device. Background Art

[0002] There is a potential threat of explosion accidents in the process of petrochemical operations. When an explosion occurs, shock waves and a large number of high-speed fragments will be generated, causing large-scale, strong and irreversible losses. Therefore, it is necessary to set explosion-proof structures such as explosion-proof plates and protective covers on the outside of target protective objects such as buildings and production equipment. The explosion-proof structure can protect the target protective object from explosions and resist the shock waves generated by the explosion. However, the existing explosion-proof structure cannot resist fragments. The fragments generated by the explosion hit the explosion-proof structure at high speed and then drill into and penetrate the explosion-proof structure and the target protective object, causing damage to the target protective object. Utility Model Content

[0003] In view of the above-mentioned defects or shortcomings, the utility model provides an explosion-proof protective structure and an explosion-proof device, aiming to solve the technical problem that the existing explosion-proof structure cannot resist fragments.

[0004] In order to achieve the above object, the utility model provides an explosion-proof protection structure, the explosion-proof protection structure comprises:

[0005] An explosion-proof body, used to connect with the target protection;

[0006] The composite explosion-proof plate comprises an explosion-proof base layer and an impact-resistant plate layer which are stacked, wherein the explosion-proof base layer is connected to the explosion-proof main body along the explosion-proof direction of the explosion-proof main body, and a polyurea elastic layer is sandwiched between the explosion-proof base layer and the impact-resistant plate layer, and an anti-penetration layer is stacked on the side of the impact-resistant plate layer away from the polyurea elastic layer.

[0007] In the embodiment of the utility model, the anti-penetration layer is made of fiber woven cloth material.

[0008] In the embodiment of the utility model, the anti-penetration layer is made of glass fiber woven cloth, carbon fiber woven cloth or Kevlar fiber woven cloth.

[0009] In the embodiment of the utility model, the impact-resistant plate layer includes an impact-resistant plate and a reinforcement plate which are stacked, the polyurea elastic layer is arranged on the side of the reinforcement plate away from the impact-resistant plate, and the anti-penetration layer is arranged on the side of the impact-resistant plate away from the reinforcement plate.

[0010] In the embodiment of the utility model, the explosion-proof base plate layer and the reinforcement plate are both made of hard metal materials, and the impact-resistant plate is made of ceramic materials.

[0011] In the embodiment of the utility model, a heat insulation layer is coated on the side of the anti-penetration layer away from the impact-resistant board layer.

[0012] In the embodiment of the present utility model, the thickness dimension of the anti-explosion substrate layer is 3 mm to 7 mm, the thickness dimension of the polyurea elastic layer is 3 mm to 7 mm, and the thickness dimension of the anti-penetration layer is 1 mm to 5 mm.

[0013] In the embodiment of the present utility model, the anti-explosion protection structure further includes an energy-absorbing connection seat. The energy-absorbing connection seat includes an installation component and a buffer module. The installation component includes an installation frame and a connection frame for respectively connecting with the target protection object and the anti-explosion main body in a one-to-one correspondence. The buffer module includes an energy-absorbing elastic member and at least two link assemblies. The at least two link assemblies are spaced between the installation frame and the connection frame. One end of each link assembly is hinged to the installation frame, and the other end is hinged to the connection frame. And an energy-absorbing elastic member is connected to each link assembly. The link assembly is used for folding when the anti-explosion main body is impacted, and driving the energy-absorbing elastic member to generate elastic deformation.

[0014] In the embodiment of the present utility model, the link assembly includes a first link and a second link hinged to the first link. One end of the first link away from the second link is hinged to the first hinge point of the installation frame, and one end of the second link away from the first link is hinged to the second hinge point of the connection frame. And the third hinge point of the first link and the second link is arranged to face away from the first hinge point and the second hinge point under the elastic support of the energy-absorbing elastic member.

[0015] To achieve the above object, the present utility model further provides an anti-explosion device, and the anti-explosion device includes the anti-explosion protection structure described above.

[0016] Through the above technical solutions, the anti-explosion protection structure and the anti-explosion device provided by the embodiment of the present utility model have the following beneficial effects:

[0017] In the technical solution of the present utility model, the anti-explosion main body is connected to the target protection object. A composite anti-explosion plate is provided on the anti-explosion main body in the anti-explosion direction of bearing the explosion impact. The composite anti-explosion plate includes an anti-explosion substrate layer, a polyurea elastic layer, an anti-impact plate layer, and an anti-penetration layer that are sequentially stacked, and the anti-explosion substrate layer is connected to the anti-explosion main body. When the anti-explosion protection structure is impacted by an explosion, the anti-explosion main body is used to absorb the impact energy and resist the shock wave generated by the explosion. The fragments generated by the explosion hit the composite anti-explosion plate at a high speed. The anti-penetration layer of the composite anti-explosion plate can resist the fragments and prevent the fragments from drilling in or penetrating. And the anti-explosion substrate layer and the anti-impact plate layer of the composite anti-explosion plate have high structural strength and can both resist the impact force of the fragments. The polyurea elastic layer is sandwiched between the anti-explosion substrate layer and the anti-impact plate layer to buffer and absorb energy, further reducing the explosion vibration and the fragment impact. The anti-explosion substrate layer, the polyurea elastic layer, the anti-impact plate layer, and the anti-penetration layer cooperate with each other to realize the protection against fragments, and have good energy absorption and impact reduction, vibration isolation, and anti-penetration performance.

[0018] Other features and advantages of the embodiments of the present utility model will be described in detail in the subsequent specific embodiments section. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide a further understanding of the embodiments of the present utility model, and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present utility model, but do not constitute a limitation to the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings. In the drawings:

[0020] Figure 1 is a schematic structural view of an explosion-resistant protection structure according to an embodiment of the present utility model from one perspective;

[0021] Figure 2 is a schematic structural view of an explosion-resistant protection structure according to an embodiment of the present utility model from another perspective;

[0022] Figure 3 is a schematic structural view of a composite explosion-resistant plate in an explosion-resistant protection structure according to an embodiment of the present utility model;

[0023] Figure 4 is a schematic structural view of a composite explosion-resistant plate in an explosion-resistant protection structure according to another embodiment of the present utility model;

[0024] Figure 5 is a schematic structural view of an energy-absorbing connection seat in an explosion-resistant protection structure according to an embodiment of the present utility model;

[0025] Figure 6 is a schematic structural view of a connecting rod assembly in an energy-absorbing connection seat according to an embodiment of the present utility model;

[0026] Figure 7 is a schematic structural view of an energy-absorbing connection seat in an explosion-resistant protection structure according to another embodiment of the present utility model.

[0027] DESCRIPTION OF THE REFERENCE NUMERALS

[0028] 10 explosion-resistant main body 311 first hinge point

[0029] 11 explosion-resistant frame 32 connecting frame

[0030] 111 damping cavity 321 second hinge point

[0031] 12 mass block 33 energy-absorbing elastic member

[0032] 13 elastic member 34 connecting rod assembly

[0033] 20 composite explosion-resistant plate 341 first connecting rod

[0034] 21 explosion-proof substrate layer 3411 rotating part

[0035] 22 Impact-resistant board layer 3412 Guide sleeve

[0036] 221 impact plate 3413 transition section

[0037] 222 reinforcement plate 3414 sliding section

[0038] 23 Polyurea elastic layer 342 Second connecting rod

[0039] 24 Anti-penetration layer 343 Third hinge point

[0040] 25 Insulation layer 35 Connecting column

[0041] 30 Energy absorbing connector 200 Target protection

[0042] 31 Mounting bracket DETAILED DESCRIPTION

[0043] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0044] The explosion-proof protection structure of the present utility model is described below with reference to the accompanying drawings.

[0045] like Figures 1 to 3 As shown, the utility model provides an explosion-proof protective structure, which includes an explosion-proof body 10 and a composite explosion-proof plate 20. The explosion-proof body 10 is used to be connected to a target protective object 200. The composite explosion-proof plate 20 includes an explosion-proof substrate layer 21 and an impact-resistant plate layer 22 that are stacked. The explosion-proof substrate layer 21 is connected to the explosion-proof body 10 along the explosion-proof direction of the explosion-proof body 10, and a polyurea elastic layer 23 is sandwiched between the explosion-proof substrate layer 21 and the impact-resistant plate layer 22. An anti-penetration layer 24 is stacked on the side of the impact-resistant plate layer 22 that is away from the polyurea elastic layer 23.

[0046] Specifically, the explosion-proof body 10 is connected to the target protective object 200, and the explosion-proof body 10 is provided with a composite explosion-proof plate 20 in the explosion-proof direction of the explosion-proof body 10, that is, the composite explosion-proof plates 20 are provided on the top and bottom of the explosion-proof body 10, and the composite explosion-proof plates 20 include an explosion-proof substrate layer 21, a polyurea elastic layer 23, an impact-resistant plate layer 22 and an anti-penetration layer 24 which are stacked in sequence, and the explosion-proof substrate layer 21 is connected to the top or bottom of the explosion-proof body 10. When the explosion-proof protective structure is subjected to the impact of an explosion, the explosion-proof main body 10 is used to absorb the impact energy and resist the shock wave generated by the explosion. The fragments generated by the explosion hit the composite explosion-proof plate 20 at high speed. The anti-penetration layer 24 of the composite explosion-proof plate 20 can resist the fragments to prevent the fragments from drilling into or penetrating. In addition, the explosion-proof substrate layer 21 and the impact-resistant plate layer 22 of the composite explosion-proof plate 20 have high structural strength and can resist the impact force of the fragments. The polyurea elastic layer 23 is sandwiched between the explosion-proof substrate layer 21 and the impact-resistant plate layer 22 to buffer and absorb energy, further reducing the explosion vibration and the impact of the fragments. The explosion-proof substrate layer 21, the polyurea elastic layer 23, the impact-resistant plate layer 22 and the anti-penetration layer 24 cooperate with each other to achieve protection against the fragments, and have good energy absorption and shock reduction, vibration isolation and anti-penetration performance.

[0047] In the embodiment of the present invention, the polyurea elastic layer 23 is made of a polyurea elastomer material, such as Figures 1 to 3 As shown, polyurea elastomer is sprayed on the side of the explosion-proof substrate layer 21 facing the impact-resistant plate layer 22 to form a polyurea elastic layer 23. The polyurea elastic layer 23 made of polyurea elastomer has the advantages of high tensile strength and good flexibility, and is puncture-resistant and elastic. The polyurea elastic layer 23 is sandwiched between the explosion-proof substrate layer 21 and the impact-resistant plate layer 22. The impact force of the high-speed collision of the fragments first acts on the impact-resistant plate layer 22, and the impact-resistant plate layer 22 reduces the impact force. After the polyurea elastic layer 23 absorbs the impact energy, the explosion-proof substrate layer 21 further resists the impact force, which greatly reduces the impact force of the fragments. In addition, the polyurea elastic layer 23 can also prevent the explosion-proof substrate layer 21 and the impact-resistant plate layer 22 from breaking, and the structure is stable and reliable.

[0048] In the embodiment of the utility model, the anti-penetration layer 24 is made of fiber woven cloth material, such as Figures 1 to 3 As shown, a fiber woven cloth is laid on the side of the impact-resistant plate layer 22 away from the polyurea elastic layer 23 to form an anti-penetration layer 24. The anti-penetration layer 24 made of the fiber woven cloth has puncture resistance and can effectively prevent fragments from drilling into or penetrating the explosion-proof composite plate to cause damage to the target protective object 200, and has excellent fragment protection performance.

[0049] Further, the anti-penetration layer 24 is made of a glass fiber woven fabric, a carbon fiber woven fabric or a Kevlar fiber woven fabric. The glass fiber woven fabric has the advantages of high tensile strength, low elongation at break, high elastic modulus and good structural stability, and the glass fiber woven fabric is easy to obtain materials. The anti-penetration layer 24 made of the glass fiber woven fabric can not only resist the penetration of fragments, but also reduce the production cost. The carbon fiber woven fabric has high strength, fatigue resistance and low coefficient of thermal expansion. The anti-penetration layer 24 made of the carbon fiber woven fabric has a long service life and strong protection ability against fragment impact. The Kevlar fiber woven fabric has high strength, low density and good toughness. The anti-penetration layer 24 made of the Kevlar fiber woven fabric has high tear resistance, can withstand multiple fragment impacts, and has a stable and reliable structure.

[0050] In the embodiment of the present utility model, the anti-impact plate layer 22 includes an anti-impact plate 221 and a reinforcing plate 222 arranged in a stacked manner. The polyurea elastic layer 23 is arranged on the side of the reinforcing plate 222 away from the anti-impact plate 221, and the anti-penetration layer 24 is arranged on the side of the anti-impact plate 221 away from the reinforcing plate 222. As Figures 1 to 3 shown, the anti-explosion substrate layer 21, the polyurea elastic layer 23, the reinforcing plate 222, the anti-impact plate 221 and the anti-penetration layer 24 are sequentially arranged in a stacked manner. The anti-impact plate 221 is used to resist the impact of fragments and reduce the impact force. The reinforcing plate 222 can enhance the structural strength of the anti-impact plate 221 and further reduce the impact. Moreover, the polyurea elastic layer 23 is sandwiched between the reinforcing plate 222 and the anti-explosion substrate layer 21 to buffer and absorb energy, effectively preventing the penetration of fragments and greatly improving the fragment protection performance.

[0051] Further, both the anti-explosion substrate layer 21 and the reinforcing plate 222 are made of hard metal materials, and the anti-impact plate 221 is made of ceramic materials. Specifically, both the anti-explosion substrate layer 21 and the reinforcing plate 222 can be made of steel, aluminum alloy or other hard metal materials in the prior art, which have the advantages of high strength and high hardness. The anti-impact plate 221 can be made of ceramic parts in the prior art. The anti-impact plate 221 made of ceramic has extremely strong anti-impact performance. The anti-explosion substrate layer 21, the reinforcing plate 222 and the anti-impact plate 221 cooperate with each other to resist the impact, effectively preventing the penetration of fragments through the composite anti-explosion plate 20, and the protection is stable and reliable.

[0052] In another embodiment of the present utility model, an adiabatic layer 25 is coated on the side of the anti-penetration layer 24 away from the anti-impact plate layer 22. As Figure 4 shown, a fireproof and adiabatic coating is sprayed on the anti-penetration layer 24 to form the adiabatic layer 25. The adiabatic layer 25 can prevent the damage of fragments at high temperature and sputtering sparks to the anti-explosion main body 10 and the target protection object 200, and improve the high-temperature resistance of the composite anti-explosion plate 20.

[0053] In the embodiment of the present utility model, the thickness dimension of the blast-resistant substrate layer 21 is 3 mm to 7 mm, the thickness dimension of the polyurea elastic layer 23 is 3 mm to 7 mm, the thickness dimension of the reinforcing plate 222 is 3 mm to 7 mm, the thickness dimension of the impact-resistant plate 221 is 5 mm to 10 mm, and the thickness dimension of the anti-penetration layer 24 is 1 mm to 5 mm. Specifically, the thickness dimensions of the blast-resistant substrate layer 21 and the reinforcing plate 222 are both set to be more than 3 mm, and the thickness dimension of the impact-resistant plate 221 is set to be more than 5 mm to ensure the structural strength and impact resistance. Moreover, the thickness dimensions of the blast-resistant substrate layer 21 and the reinforcing plate 222 are both set to be less than 7 mm, and the thickness dimension of the impact-resistant plate 221 is set to be less than 10 mm to reduce the overall weight and facilitate composite processing; the thickness dimension of the polyurea elastic layer 23 is set to be more than 3 mm to achieve the buffering performance and prevent the blast-resistant substrate layer 21 and the reinforcing plate 222 from cracking, and the thickness dimension of the polyurea elastic layer 23 is set to be less than 7 mm, which has the advantages of simplifying the production process and reducing the production cost; the thickness dimension of the anti-penetration layer 24 is set to be more than 1 mm to prevent fragments from drilling into or penetrating, thereby achieving the resistance to fragment impact. Furthermore, the thickness dimensions of the blast-resistant substrate layer 21, the polyurea elastic layer 23, the reinforcing plate 222, the impact-resistant plate 221 and the anti-penetration layer 24 can be flexibly set within the above ranges according to different fragment masses and impact velocities to achieve fragment protection for a variety of target protectors 200, improving the protection reliability and stability.

[0054] In the embodiment of the present utility model, the blast-resistant protection structure further includes an energy-absorbing connection seat 30. The energy-absorbing connection seat 30 includes an installation component and a buffer module. The installation component includes an installation frame 31 and a connection frame 32 for respectively connecting with the target protector 200 and the blast-resistant main body 10 in a one-to-one correspondence. The buffer module includes an energy-absorbing elastic member 33 and at least two link assemblies 34. The at least two link assemblies 34 are spaced between the installation frame 31 and the connection frame 32. One end of each link assembly 34 is hinged to the installation frame 31, and the other end is hinged to the connection frame 32. And an energy-absorbing elastic member 33 is connected to each link assembly 34. The link assembly 34 is used for folding when the blast-resistant main body 10 is impacted and driving the energy-absorbing elastic member 33 to generate elastic deformation.

[0055] As Figure 1 and Figures 5 to 7As shown in the figure, the energy-absorbing connection seat 30 is used to be arranged between the target protection object 200 and the anti-explosion main body 10 to connect the target protection object 200 and the anti-explosion main body 10. The energy-absorbing connection seat 30 includes an installation frame 31, a connection frame 32, an energy-absorbing elastic member 33 and at least two link assemblies 34. The installation frame 31 and the connection frame 32 are arranged at intervals. At least two link assemblies 34 are arranged between the installation frame 31 and the connection frame 32, and both ends of each link assembly 34 are respectively hinged to the installation frame 31 and the connection frame 32. The energy-absorbing elastic member 33 is connected to the link assembly 34. The installation frame 31 is connected to the target protection object 200, and the connection frame 32 is connected to the anti-explosion main body 10. When the anti-explosion main body 10 is subjected to an explosion impact, it will move towards the target protection object 200 and conduct the shock wave and vibration to the link assembly 34, so that the link assembly 34 switches from the unfolded state to the folded state to play a role in buffering and vibration reduction, preventing the impact force from being directly conducted to the target protection object 200. And when the link assembly 34 folds, it can drive the energy-absorbing elastic member 33 to stretch or contract, so that the energy-absorbing elastic member 33 absorbs the impact energy, prevents the shock wave and vibration from being conducted to the target protection object 200 to damage the target protection object 200, and improves the anti-explosion stability and reliability. In addition, in a preferred embodiment of the present invention, the energy-absorbing elastic member 33 is set as a spring, which has the advantages of good energy-absorbing effect and convenient installation.

[0056] In the embodiment of the present invention, the link assembly 34 includes a first link 341 and a second link 342 hinged to the first link 341. One end of the first link 341 away from the second link 342 is hinged to the first hinge point 311 of the installation frame 31, and one end of the second link 342 away from the first link 341 is hinged to the second hinge point 321 of the connection frame 32. And the third hinge point 343 of the first link 341 and the second link 342 is used to be arranged outward away from the first hinge point 311 and the second hinge point 321 under the elastic support of the energy-absorbing elastic member 33.

[0057] As Figures 5 to 7As shown, one end of the first link 341 is hinged to the first hinge point 311 on the mounting frame 31, the other end of the first link 341 is hinged to one end of the second link 342 and has a third hinge point 343, and the other end of the second link 342 is hinged to the second hinge point 321 on the connecting frame 32, and the elastic supporting force of the energy-absorbing elastic member 33 acts on the first link 341 and the second link 342, so that the third hinge point 343 of the first link 341 and the second link 342 is arranged outward relative to the first hinge point 311 and the second hinge point 321. When the explosion-proof body 10 is impacted by the explosion, it will move toward the target shield 200 and transmit the shock wave and vibration to the connecting rod assembly 34, so that the second connecting rod 342 is folded toward the first connecting rod 341 to reduce the impact of the explosion-proof body 10 on the target shield 200, and the first connecting rod 341 and the second connecting rod 342 can drive the energy-absorbing elastic member 33 to elastically deform when folding, so that the elastic restoring force of the energy-absorbing elastic member 33 acts on the explosion-proof body 10 through the first connecting rod 341 and the second connecting rod 342, and the explosion-proof body 10 reciprocates under the elastic restoring force and the explosion impact force, so that the energy-absorbing elastic member 33 and the explosion-proof body 10 can absorb the impact energy, suppress the transmission of the explosion shock wave, and improve the vibration isolation protection effect; and the third hinge point 343 is arranged outward relative to the first hinge point 311 and the second hinge point 321, so that when the first connecting rod 341 and the second connecting rod 342 are folded, the third hinge points 343 of at least two connecting rod assemblies 34 can move away from each other, preventing folding interference between at least two connecting rod assemblies 34, and the structural design is reasonable.

[0058] In one embodiment of the present invention, the first connecting rod 341 includes a rotating portion 3411 and a transition portion, the rotating portion 3411 is hinged on the mounting frame 31, the transition portion is hinged to the second connecting rod 342, the energy absorbing elastic member 33 is disposed between the rotating portion 3411 and the transition portion, and the two ends of the energy absorbing elastic member 33 are respectively connected to the rotating portion 3411 and the transition portion in a one-to-one correspondence. Figure 5 and Figure 6 As shown, the rotating part 3411 is hinged to the first hinge point 311 on the mounting frame 31, the transition part is hinged to the second connecting rod 342, and the rotating part 3411 and the transition part are spaced apart and arranged opposite to each other, and each connecting rod assembly 34 is correspondingly provided with an energy absorbing elastic member 33, one end of the energy absorbing elastic member 33 is connected to the rotating part 3411, and the other end of the energy absorbing elastic member 33 is connected to the transition part.

[0059] When subjected to the impact of an explosion, the explosion-proof body 10 will move toward the target protective object 200, so as to drive the second connecting rod 342 to fold toward the adapter and the rotating part 3411 through the connecting frame 32. The second connecting rod 342 rotates to drive the adapter, so that the adapter and the rotating part 3411 cooperate to stretch the energy-absorbing elastic member 33. The elastic restoring force of the energy-absorbing elastic member 33 acts on the adapter and the second connecting rod 342 to absorb the impact energy, thereby improving the explosion-proof stability and reliability; and, in the original state, the elastic supporting force of the energy-absorbing elastic member 33 acts on the adapter, so that the third hinge point 343 between the adapter and the second connecting rod 342 is set outward, thereby improving the stability of the structure.

[0060] In one embodiment of the utility model, the transition part includes a transition section 3413 and a sliding section 3414. The transition section 3413 is hinged to the second connecting rod 342. The sliding section 3414 is arranged on the transition section 3413 and connected to the energy absorbing elastic member 33. The buffer module also includes a guide sleeve 3412 arranged on the rotating part 3411. The sliding section 3414 extends into the guide sleeve 3412 and slides with the guide sleeve 3412. Figure 5 and Figure 6 As shown, the sliding section 3414 is connected to the adapter part through the adapter section 3413, one end of the energy absorbing elastic member 33 is connected to the rotating part 3411, and the other end of the energy absorbing elastic member 33 is connected to the sliding section 3414. The guide sleeve 3412 is sleeved on the outside of the sliding section 3414, and the energy absorbing elastic member 33 is arranged in the guide sleeve 3412. When the second connecting rod 342 is folded, the second connecting rod 342 drives the adapter section 3413 and the sliding section 3414 to rotate, so that the sliding section 3414 slides relative to the guide sleeve 3412 in the guide sleeve 3412, and cooperates with the rotating part 3411 to stretch the energy absorbing elastic member 33, so that the energy absorbing elastic member 33 absorbs impact energy, buffers and reduces vibration, and the guide sleeve 3412 plays a role in guiding the sliding section 3414 to slide, thereby improving the stability and smoothness of the folding switch.

[0061] In one embodiment of the present invention, the number of connecting rod assemblies 34 is set to at least four, and at least four connecting rod assemblies 34 are circumferentially spaced between the mounting frame 31 and the connecting frame 32, and the number of energy-absorbing elastic members 33 is consistent with the number of connecting rod assemblies 34 and is arranged one by one. Figure 5 and Figure 6 As shown, at least four connecting rod assemblies 34 are arranged between the mounting frame 31 and the connecting frame 32, and are arranged at intervals along the circumference of the mounting frame 31. In the at least four connecting rod assemblies 34, the third hinge point 343 of each connecting rod assembly 34 is arranged outward, and an energy-absorbing elastic member 33 is provided between each adapter and the corresponding rotating part 3411.

[0062] When the explosion-proof body 10 is subjected to the impact of an explosion, the second connecting rod 342 is folded toward the first connecting rod 341 to reduce the impact force of the explosion-proof body 10, and at least four third hinge points 343 are away from each other to avoid folding interference. The energy-absorbing elastic member 33 is stretched by the stretching action of the adapter, so that the elastic restoring force of the energy-absorbing elastic member 33 acts on the adapter, the second connecting rod 342 and the explosion-proof body 10 to perform local resonance. Both the energy-absorbing elastic member 33 and the explosion-proof body 10 can absorb the impact energy, suppress the transmission of the explosion shock wave, and improve the vibration isolation protection effect. Moreover, when the explosion-proof body 10 is subjected to a large impact load, the stretching amount of the energy-absorbing elastic member 33 reaches a peak value. After the stretching amount of the energy-absorbing elastic member 33 exceeds the critical value, the second connecting rod 342, the adapter and the rotating part 3411 complete the folding and realize self-locking, that is, the elastic restoring force of the energy-absorbing elastic member 33 cannot drive the second connecting rod 342 to reset through the adapter. At this time, the impact energy is transmitted to the energy-absorbing elastic member 33 and converted from kinetic energy to the internal energy of the energy-absorbing elastic member 33, so that the energy-absorbing elastic member 33 further absorbs the impact energy, and the second connecting rod 342, the adapter and the rotating part 3411 are in a folded self-locking state, which limits the movement of the explosion-proof body 10 and further improves the explosion-proof stability and reliability. In addition, the number of connecting rod assemblies 34 is set to at least four, so that the energy-absorbing connecting seat 30 has at least four supporting points for the explosion-proof body 10, and the multi-angle and multi-directional three-dimensional support is stable and reliable, which greatly enhances the energy absorption effect.

[0063] In another embodiment of the present invention, the number of connecting rod assemblies 34 is set to two, and the two connecting rod assemblies 34 are symmetrically arranged between the mounting frame 31 and the connecting frame 32, and the two ends of the energy-absorbing elastic member 33 are respectively connected to the two connecting rod assemblies 34 in a one-to-one correspondence. The connecting rod assembly 34 is used to fold when the explosion-proof body 10 is impacted, and drive the energy-absorbing elastic member 33 to stretch.

[0064] like Figure 7As shown in the figure, the energy-absorbing connection seat 30 is used to be arranged between the target protection object 200 and the anti-explosion main body 10 to connect the target protection object 200 and the anti-explosion main body 10. The energy-absorbing connection seat 30 includes a mounting frame 31, a connecting frame 32, an energy-absorbing elastic member 33 and two link assemblies 34. The mounting frame 31 and the connecting frame 32 are arranged at intervals. The two link assemblies 34 are both arranged between the mounting frame 31 and the connecting frame 32 and are symmetrically arranged. And the two ends of each link assembly 34 are respectively hinged to the mounting frame 31 and the connecting frame 32. The two ends of the energy-absorbing elastic member 33 are respectively connected to the two link assemblies 34. The mounting frame 31 is connected to the target protection object 200, and the connecting frame 32 is connected to the anti-explosion main body 10. When the anti-explosion main body 10 is subjected to an explosion shock, it will move towards the target protection object 200 and conduct the shock wave and vibration to the link assembly 34, so that the link assembly 34 switches from the unfolded state to the folded state to play a role in buffering and vibration reduction, preventing the impact force from being directly conducted to the target protection object 200. And when the two link assemblies 34 are folded, they can cooperate to stretch the energy-absorbing elastic member 33, so that the energy-absorbing elastic member 33 absorbs the impact energy, preventing the shock wave and vibration from being conducted to the target protection object 200 to damage the target protection object 200, and improving the anti-explosion stability and reliability.

[0065] In another embodiment of the present invention, a connecting column 35 is penetrated through the third hinge point 343 of the first link 341 and the second link 342. The two ends of the energy-absorbing elastic member 33 are respectively connected to the connecting columns 35 of the two link assemblies 34 in a one-to-one correspondence. As Figure 7As shown, in the two link assemblies 34, one end of each of the two first links 341 is hinged to the first hinge point 311 on the mounting frame 31. The other ends of the two first links 341 are respectively and correspondingly hinged to one end of the two second links 342 and each has a third hinge point 343. Moreover, the other ends of the two second links 342 are both hinged to the second hinge point 321 on the connecting frame 32. The elastic supporting forces of the energy-absorbing elastic members 33 respectively act on the two third hinge points 343, so that the third hinge points 343 of the first link 341 and the second link 342 are arranged outward relative to the first hinge point 311 and the second hinge point 321. When the blast-resistant main body 10 is subjected to a blast shock, it will move towards the target protective object 200 and conduct the shock wave and vibration to the link assembly 34, causing the second link 342 to fold towards the first link 341 to slow down the impact of the blast-resistant main body 10 on the target protective object 200. Moreover, when the first link 341 and the second link 342 are folding, they can cooperate to stretch the energy-absorbing elastic member 33, so that the elastic restoring force of the energy-absorbing elastic member 33 acts on the blast-resistant main body 10 through the first link 341 and the second link 342. The blast-resistant main body 10 reciprocates under the action of the elastic restoring force and the blast impact force, so that both the energy-absorbing elastic member 33 and the blast-resistant main body 10 can absorb the impact energy, inhibit the transmission of the blast shock wave, and improve the vibration isolation and protection effect. And the third hinge point 343 is arranged outward relative to the first hinge point 311 and the second hinge point 321, so that when the first link 341 and the second link 342 are folding, the third hinge points 343 of the two link assemblies 34 can move away from each other, preventing folding interference between the two link assemblies 34, and the structural design is reasonable.

[0066] Further, the connecting column 35 passes through one end of the first link 341 away from the mounting frame 31 and one end of the second link 342 away from the connecting frame 32, so that the first link 341 and the second link 342 are hinged by the connecting column 35. In the two link assemblies 34, the energy-absorbing elastic member 33 is arranged between the two link assemblies 34, and one end of the energy-absorbing elastic member 33 is connected to the connecting column 35 of one of the link assemblies 34, and the other end of the energy-absorbing elastic member 33 is connected to the connecting column 35 of the other link assembly 34, so that the two connecting columns 35 can cooperate to stretch the energy-absorbing elastic member 33, and further make the elastic restoring force of the energy-absorbing elastic member 33 act on the first link 341, the second link 342 and the blast-resistant main body 10 to conduct local resonance. Both the energy-absorbing elastic member 33 and the blast-resistant main body 10 can absorb the impact energy, inhibit the transmission of the blast shock wave, and improve the vibration isolation and protection effect.

[0067] In the embodiment of the present utility model, the blast-resistant main body 10 includes a plurality of blast-resistant frames 11 arranged in an array, such as Figure 2As shown in the figure, multiple blast-resistant frames 11 serve as the main load-bearing structures. When subjected to blast shock, they can undergo elastic or plastic deformation to absorb the blast shock energy and effectively weaken the blast shock wave. Further, a damping cavity 111 is formed inside the blast-resistant frame 11. The blast-resistant device further includes a damping component. The damping component is disposed in the damping cavity 111. The damping component includes a mass block 12 and an elastic member 13. The elastic member 13 is supported between the blast-resistant frame 11 and the mass block 12. Elastic members 13 are supported on both opposite sides of the mass block 12 along the blast-resistant direction of the blast-resistant frame 11. A deformation gap for the deformation of the blast-resistant frame 11 is provided between the mass block 12 and the blast-resistant frame 11.

[0068] As Figure 2 As shown in the figure, the damping component is disposed in the damping cavity 111 of the blast-resistant frame 11. The elastic member 13 of the damping component is disposed between the mass block 12 and the blast-resistant frame 11. Elastic members 13 are disposed on both opposite sides of the mass block 12 along the blast-resistant direction of the blast-resistant frame 11. When the blast-resistant main body 10 is subjected to an impact, under the action of the shock wave, the elastic member 13 deforms together with the blast-resistant frame 11, which can play a role in reducing the impact and effectively reduce the impact received by the target object. A deformation gap for the deformation of the blast-resistant frame 11 is provided between the mass block 12 and the blast-resistant frame 11, so that when the blast-resistant protection structure is subjected to an impact, the mass block 12 can resonate with the impact to hinder the transmission of the elastic wave carried by the impact and avoid the target object from being damaged by the impact. Among them, in the embodiment of the present utility model, the elastic member 13 is connected to the mass block 12 and the elastic member 13 is connected to the blast-resistant frame 11 by welding. Welding holes for the elastic member 13 to penetrate are reserved on both the mass block 12 and the blast-resistant frame 11. After the elastic member 13 penetrates into the welding holes, welding is performed, which improves the connection stability between the elastic member 13 and the mass block 12 and between the elastic member 13 and the blast-resistant frame 11. The thickness of the blast-resistant frame 11 and the size of the mass block 12 can be set according to actual needs and adjusted according to the blast load, fragment protection parameters, and natural frequency received by the protected target object. In the present utility model, the thickness of the blast-resistant frame 11 is preferably 2 mm, the cross-sectional size of the mass block 12 is 10 mm × 10 mm, and the materials of the blast-resistant frame 11 and the mass block 12 are both selected as alloy steel. Alloy steel has the advantages of light weight, good weather resistance, and good corrosion resistance. In the preferred embodiment of the present utility model, the elastic member 13 is set as a spring, which has the advantages of good energy absorption effect and convenient installation. Preferably, the elastic members 13 on both sides of the mass block 12 have the same shape or are symmetrically arranged with respect to the mass block 12.

[0069] In addition, the present utility model further provides a blast-resistant device. The blast-resistant device includes the blast-resistant protection structure described above. Specifically, as Figure 2As shown, the anti-explosion device further includes a vibration damping component. A vibration damping cavity 111 is formed in each anti-explosion frame 11 of the anti-explosion main body 10. The number of vibration damping components is the same as that of the anti-explosion frames 11 and they are correspondingly arranged in the vibration damping cavities 111 one by one. Each vibration damping component includes a mass block 12 and an elastic member 13. The elastic member 13 is supported between the anti-explosion frame 11 and the mass block 12, and elastic members 13 are supported on opposite sides of the mass block 12 along the anti-explosion direction of the anti-explosion frame 11. A deformation gap for the deformation of the anti-explosion frame 11 is provided between the mass block 12 and the anti-explosion frame 11 to further absorb the shock wave and improve the protection performance. Moreover, the specific structure of this anti-explosion protection structure refers to the above-mentioned embodiment. Since the anti-explosion device adopts all the technical solutions of the above-mentioned embodiment, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiment, which will not be elaborated one by one here.

[0070] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0071] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected with", "fixed" and other terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0072] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0073] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. An anti-explosion protection structure, characterized in that, The explosion-proof protection structure comprises: An explosion-proof body (10) for connecting with a target shield (200); A composite explosion-proof plate (20) comprises an explosion-proof substrate layer (21) and an impact-resistant plate layer (22) which are stacked, wherein the explosion-proof substrate layer (21) is connected to the explosion-proof body (10) along the explosion-proof direction of the explosion-proof body (10), and a polyurea elastic layer (23) is sandwiched between the explosion-proof substrate layer (21) and the impact-resistant plate layer (22), and an anti-penetration layer (24) is stacked on a side of the impact-resistant plate layer (22) away from the polyurea elastic layer (23).

2. The blast-resistant protection structure according to claim 1, characterized in that, The anti-penetration layer (24) is made of fiber woven cloth material.

3. The blast-resistant protection structure according to claim 2, wherein, The anti-penetration layer (24) is made of glass fiber woven cloth, carbon fiber woven cloth or Kevlar fiber woven cloth.

4. The blast-resistant protection structure according to claim 1, characterized in that, The impact-resistant plate layer (22) comprises an impact-resistant plate (221) and a reinforcing plate (222) which are stacked, the polyurea elastic layer (23) is arranged on a side of the reinforcing plate (222) away from the impact-resistant plate (221), and the anti-penetration layer (24) is arranged on a side of the impact-resistant plate (221) away from the reinforcing plate (222).

5. The blast-resistant protection structure according to claim 4, characterized in that, The explosion-proof substrate layer (21) and the reinforcing plate (222) are both made of hard metal materials, and the impact-resistant plate (221) is made of ceramic materials.

6. The blast-resistant protection structure according to any one of claims 1 to 5, characterized in that The side of the anti-penetration layer (24) facing away from the impact-resistant board layer (22) is coated with a heat insulating layer (25).

7. The blast-resistant protection structure according to any one of claims 1 to 5, characterized in that, The thickness of the explosion-proof substrate layer (21) is 3 mm to 7 mm, the thickness of the polyurea elastic layer (23) is 3 mm to 7 mm, and the thickness of the anti-penetration layer (24) is 1 mm to 5 mm.

8. The blast-resistant protection structure according to any one of claims 1 to 5, characterized in that, The explosion-proof protection structure also includes an energy-absorbing connection seat (30), the energy-absorbing connection seat (30) includes a mounting assembly and a buffer module, the mounting assembly includes a mounting frame (31) and a connecting frame (32) for being respectively connected to the target protection object (200) and the explosion-proof body (10) in a one-to-one correspondence, the buffer module includes an energy-absorbing elastic member (33) and at least two connecting rod assemblies (34), at least two of the connecting rod assemblies (34) are arranged between the mounting frame (31) and the connecting frame (32), one end of each of the connecting rod assemblies (34) is hinged to the mounting frame (31), and the other end is hinged to the connecting frame (32), and each of the connecting rod assemblies (34) is connected to the energy-absorbing elastic member (33), and the connecting rod assembly (34) is used to fold when the explosion-proof body (10) is impacted, and drive the energy-absorbing elastic member (33) to produce elastic deformation.

9. The blast-resistant protection structure according to claim 8, characterized in that, The connecting rod assembly (34) includes a first connecting rod (341) and a second connecting rod (342) hinged to the first connecting rod (341). One end of the first connecting rod (341) away from the second connecting rod (342) is hinged to a first hinge point (311) of the mounting bracket (31). One end of the second connecting rod (342) away from the first connecting rod (341) is hinged to a second hinge point (321) of the connecting bracket (32). And a third hinge point (343) of the first connecting rod (341) and the second connecting rod (342) is arranged to face away from the first hinge point (311) and the second hinge point (321) outward under the elastic support of the energy-absorbing elastic member (33).

10. An explosion-proof device, characterized in that, The explosion-proof device includes the explosion-proof protection structure according to any one of claims 1 to 9.

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