Large equivalent flexible composite explosion-proof equipment

Abstract

The present invention discloses a large-equivalent flexible composite explosion-proof equipment, comprising: a base, a bottomless barrel body and an outer fence arranged on the base, and a top cover fixed on the top of the bottomless barrel body, wherein the outer fence is arranged around the bottom of the bottomless barrel body; the bottomless barrel body comprises: an inner support, a barrel body liner, an inner flexible armor layer, an outer support and an outer flexible armor layer arranged in sequence from the inside to the outside, wherein the top ends of the inner support and the outer flexible armor layer are connected with a top edge, and the bottom ends are connected with a bottom edge, wherein the inner support, the outer flexible armor layer, the top edge and the bottom edge form a closed annular cavity, wherein the barrel body liner, the inner flexible armor layer and the outer support are arranged in the annular cavity; the inner support, the bottom edge and the outer support are made of a first flexible material, and the outer flexible armor layer, the top edge and the inner flexible armor layer are made of a second flexible material, and the barrel body liner is filled with explosion-proof liquid. The explosion-proof equipment can effectively resist the explosion impact of large-equivalent explosives.

Description

Technical Field

[0001] The invention belongs to the technical fields of police, military and public safety, and in particular relates to a large-equivalent flexible composite explosion-proof equipment. Background Art

[0002] Traditional explosion-proof devices generally use a hard steel structure to resist shock waves and fragments through their own high strength. However, when dealing with large-equivalent (≥1kg) explosives, there may be a risk of overexplosion. Not only can it not effectively protect people and objects around from the damage caused by the fragments and shock waves generated by the explosion, but its own structure may be deformed and scattered under the action of large-equivalent explosives, causing secondary damage. In addition, general explosives will be accompanied by some lethal fragments such as steel balls and nails. Under overexplosion, such fragments may penetrate or cause the surface of the traditional steel explosion-proof structure to collapse under the high-speed drive of the explosives, causing casualties.

[0003] Patent document with application number 201721545740.9 discloses a mobile explosion-proof tank, including a shell and a cover arranged at the upper end of the shell, the shell is composed of an explosion-proof layer and a fiberglass layer from the inside to the outside, an energy-absorbing layer is arranged on the side wall inside the shell, the bottom inside the shell and the lower surface of the cover are both provided with a wavy buffer layer, a base is arranged below the explosion-proof tank, rollers connected by supporting legs are arranged below the base, and a protective frame is fixed around the shell, and the protective frame is in a grid shape. The shell of the mobile explosion-proof tank is only composed of an explosion-proof layer and a fiberglass layer, and the protective frame is only an ordinary frame structure, with poor explosion-proof performance, unable to resist the explosion impact of large-equivalent explosives, but also prone to secondary additional damage and fragmentation damage. Summary of the invention

[0004] The main purpose of the present invention is to provide a large-equivalent flexible composite explosion-proof equipment, aiming to solve the problem that the existing explosion-proof device cannot withstand the fragments and injuries caused by the explosion of large-equivalent explosives.

[0005] To achieve the above-mentioned purpose, the present invention proposes a large-equivalent flexible composite explosion-proof equipment, comprising: a base, a bottomless barrel body and an outer fence arranged on the base, and a top cover fixed to the top of the bottomless barrel body, wherein the outer fence is arranged around the bottom of the bottomless barrel body; the bottomless barrel body comprises, arranged in sequence from the inside to the outside: an inner support, a barrel body liner, an inner flexible armor layer, an outer support and an outer flexible armor layer, the top ends of the inner support and the outer flexible armor layer are connected with a top edge, and the bottom ends are connected with a bottom edge, the inner support, the outer flexible armor layer, the top edge and the bottom edge form a closed annular cavity, the barrel body liner, the inner flexible armor layer and the outer support are arranged in the annular cavity; the inner support, the bottom edge and the outer support are made of a first flexible material, the outer flexible armor layer, the top edge and the inner flexible armor layer are made of a second flexible material, and the barrel body liner is filled with explosion-proof liquid.

[0006] Preferably, the inner support and the bottom edge are integrally formed, and the outer flexible armor layer and the top edge are integrally formed.

[0007] Preferably, the first flexible material is a non-metallic PC board; the second flexible material is a composite fiber material, wherein the composite fiber material has an ultra-high molecular weight polyethylene fiber material as a core layer and an aramid woven fabric as a covering layer.

[0008] Preferably, the top cover comprises: a top cover body, a top cover groove is opened in the middle of the top of the top cover body, a top cover liner is arranged in the top cover groove, and a top cover leather cover is arranged outside the top cover body and the top cover liner; the top cover body is made of polyethylene plastic, and the top cover liner is filled with explosion-proof liquid.

[0009] Preferably, the surface of the bottomless barrel is covered with a barrel leather cover.

[0010] Preferably, the outer fence comprises: a fixing ring layer, an outer fence flexible armor layer and an outer fence leather cover, the outer fence flexible armor layer is arranged on the outside of the fixing ring layer, and the outer fence leather cover is arranged outside the fixing ring layer and the outer fence flexible armor layer; the fixing ring layer is made of polyethylene material, and the outer fence flexible armor layer is made of the second flexible material.

[0011] Preferably, the base comprises: a base body, the top surface of the base body is provided with a base flexible armor layer, and the overall outer surface after the base body and the base flexible armor layer are connected is provided with a polyurea coating; the base body is made of polyethylene plastic, and the base flexible armor layer is made of the second flexible material.

[0012] Preferably, a strip groove is provided on the bottom surface of the base, and the strip groove is connected at both ends along its extension direction; a removable disposal platform is provided in the strip groove.

[0013] Preferably, a net bag is provided in the bottomless barrel.

[0014] Preferably, the top cover is adhesively connected to the bottomless barrel body, and the outer fence is adhesively connected to the bottomless barrel body.

[0015] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0016] The present invention arranges a bottomless barrel body on a base, arranges a top cover on the top of the bottomless barrel body, and arranges an outer fence around the bottom of the bottomless barrel body. The bottomless barrel body, the base and the top cover form a closed explosive accommodating space. The bottomless barrel body is composed of an inner support, a barrel body liner, an inner flexible armor layer, an outer support and an outer flexible armor layer to form a multi-layer composite structure, and a bottom edge is arranged at the bottom end of the inner support, and a top edge is arranged at the top end of the outer flexible armor layer. The inner support and the outer flexible armor layer are buckled with each other to form an annular cavity. The barrel body liner, the inner flexible armor layer and the outer support are arranged in the annular cavity. The overall mechanical bearing capacity is strong and the stability is good, and the impact caused by the explosion can be effectively resisted to prevent fragments from flying.

[0017] The bottomless barrel body of the present invention has an inner support, a bottom edge and an outer support made of a first flexible material. When the explosive explodes, a large number of fragments and a huge shock wave will be generated. The first flexible material provides effective basic protection for the fragments and the shock wave; the outer flexible armor layer, the top edge and the inner flexible armor layer are made of a second flexible material. The flexible material is specifically a composite fiber material with an ultra-high molecular weight polyethylene fiber material as a core layer and an aramid woven fabric as a covering layer. The inner flexible armor layer is arranged between the inner support and the outer support, and can effectively intercept the fragments flying around during the explosion; the inner liner of the barrel body is filled with an explosion-proof liquid, which can effectively weaken the shock wave generated by the explosion and reduce the scattering speed of the fragments flying around; the multiple layers of flexible materials and the explosion-proof liquid can protect large-equivalent explosives together, and the protection effect is good. The flame generated by the explosion can be quickly suppressed, and the vibration and noise generated by the explosion can be effectively weakened.

[0018] The top cover on the top of the bottomless barrel body of the present invention adopts a structure with a polyethylene plastic built-in explosion-proof liquid liner, which can further weaken the upward shock wave generated by the explosion and reduce the scattering speed of the fragments flying upward; the outer fence outside the bottomless barrel body adopts an outer fence flexible armor layer, and the outer fence flexible material is also made of aramid plain weave fabric and ultra-high molecular weight polyethylene orthogonal fabric, which can effectively intercept the fragments flying from the bottom of the bottomless barrel body, thereby further improving the protection effect of the explosion-proof equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 A structural diagram of a large-equivalent flexible composite explosion-proof equipment proposed in one embodiment of the present invention;

[0021] Figure 2 for Figure 1The cross-sectional structure diagram of the bottomless barrel in the proposed large-equivalent flexible composite explosion-proof equipment;

[0022] Figure 3 for Figure 1 The cross-sectional structure diagram of the top cover of the proposed large-equivalent flexible composite explosion-proof equipment;

[0023] Figure 4 for Figure 1 The cross-sectional structure diagram of the outer fence of the proposed large-equivalent flexible composite explosion-proof equipment;

[0024] Figure 5 for Figure 1 The structural diagram of the base of the proposed large-equivalent flexible composite explosion-proof equipment;

[0025] Figure 6 for Figure 1 The structural diagram of the disposal platform in the proposed large-equivalent flexible composite explosion-proof equipment;

[0026] Figure 7 for Figure 1 Structural diagram of the gantry used in the installation of the proposed large-equivalent flexible composite explosion-proof equipment.

[0027] Description of the accompanying drawings of the present invention:

[0028] Label name Label name 1 Top cover 29 Bottom 11 Top cover leather case 3 Outer fence 12 Top cover body 31 Retention ring 13 Top cover liner 32 External fence flexible armor layer 2 Bottomless barrel 33 External fence leather cover 21 Net bag 4 Base 22 Internal support 41 Flexible base layer 23 Tank body 42 Base body 24 External support 43 Polyurea coating 25 Inner flexible armor layer 44 Strip groove 26 Barrel leather case 5 Disposal platform 27 Outer flexible armor 6 Gantry 28 Top edge DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] The invention provides a large-equivalent flexible composite explosion-proof equipment.

[0035] Please refer to Figures 1 to 7 , a large-equivalent flexible composite explosion-proof equipment, including: a top cover 1, a bottomless barrel body 2, an outer fence 3, and a base 4. The bottomless barrel body 2 has a barrel wall and no barrel bottom, and is connected from top to bottom. The top cover 1 is arranged on the top of the bottomless barrel body 2, and is connected and fixed to the bottomless barrel body 2 to close the top of the bottomless barrel body 2. The outer fence 3 is arranged around the bottom of the bottomless barrel body 2 and is tightly attached to the periphery of the bottomless barrel body 2. The bottomless barrel body 2 and the outer fence 3 are arranged together on the base 4. The bottomless barrel body 2, the top cover 1 and the base 4 enclose a closed containing space for placing explosives and isolating the explosives.

[0036] The bottomless barrel body 2 includes at least the following layers from the inside to the outside: an inner support 22, an inner barrel liner 23, an inner flexible armor layer 25, an outer support 24 and an outer flexible armor layer 27. The top ends of the innermost inner support 22 and the outermost outer flexible armor layer 27 are connected with a top edge 28, and the bottom ends of the inner support 22 and the outer flexible armor layer 27 are connected with a bottom edge 29. The inner support 22, the outer flexible armor layer 27, the top edge 28 and the bottom edge 29 form a closed annular cavity, which surrounds the barrel liner 23, the inner flexible armor layer 25 and the outer support 24.

[0037] Among them, the inner support 22, the bottom edge 29 and the outer support 24 are made of a first flexible material, which can fix the shape of the explosion-proof device. When the explosive explodes, a large number of fragments and a huge shock wave will be generated. The flexible material can provide effective basic protection for the fragments and shock waves. The outer flexible armor layer 27, the top edge 28 and the inner flexible armor layer 25 are made of a second flexible material. The inner flexible armor layer 25 is arranged between the inner support 22 and the outer support 24, and the outer flexible armor layer 27 is wrapped outside the outer support 24. The two flexible armor layers are made of flexible materials, and the flexible material can effectively intercept the fragments flying around during the explosion. The inner liner 23 of the barrel body is an explosion-proof liquid, which can effectively weaken the shock waves generated by the explosion and reduce the scattering speed of the fragments flying around.

[0038] When the explosion-proof equipment is in use, the base 4 plays a bearing role. When the explosive explodes, the base 4 can weaken the downward impact of the explosive after the explosion, reduce the vibration on the ground, and can also be used to collect explosion products for analysis and research of the explosive. The bottomless barrel 2 is made of multiple layers of flexible materials and filled with an explosion-proof liquid liner, which together form a multi-layer composite barrel structure, which can efficiently absorb the impact energy of the explosion and effectively intercept the explosion fragments, preventing the explosives from causing damage to the surrounding environment from all sides. A large number of fragments generated after the explosion of the explosive fly outward from the bottom of the bottomless barrel 2, and the outer fence 3 is arranged around the bottom of the bottomless barrel 2 to further enhance the interception effect of the fragments flying outward from the bottom of the bottomless barrel 2.

[0039] Specifically, in this embodiment, the bottomless barrel 2 and the outer fence 3 are cylindrical, the top cover 1 is a round plate that fits the top of the bottomless barrel 2, and the base 4 is a truncated cone that fits the bottom of the bottomless barrel 2, so that the explosion-proof equipment is barrel-shaped. Without limitation, in other embodiments, the explosion-proof equipment can also be designed in other shapes such as a truncated cone and a cube, as long as the multi-layer composite structure of the bottomless barrel 2 in the explosion-proof equipment is used, it can effectively intercept and buffer the fragments and impacts generated by the explosion of the explosive, which is not limited here.

[0040] Furthermore, the bottom edge 29 is bent and formed at the bottom end of the inner support 22, and the bottom edge 29 and the inner support 22 are integrally formed. The top edge 28 is bent and formed at the top end of the outer flexible armor layer 27, and the top edge 28 and the outer flexible armor layer 27 are integrally formed. Then, the bottom edge 29 is fixedly connected to the bottom end of the outer flexible armor layer 27, and the top edge 28 is fixedly connected to the top end of the inner support 22, thereby forming an annular cavity coaxial with the inner support 22.

[0041] The integrated structure formed by the inner support 22 and the bottom edge 29 covers the inner liner 23 of the barrel body, the inner flexible armor layer 25 and the bottom end of the outer support 24, and the integrated structure formed by the outer flexible armor layer 27 and the top edge 28 covers the top end of the inner liner 23 of the barrel body, the inner flexible armor layer 25 and the outer support 24. The inner support 22 and the outer flexible armor layer 27 are buckled up and down, so that the force bearing capacity of the whole structure is strong, and the stability of the whole explosion-proof equipment is improved. It also makes the explosion-proof equipment easy to cooperate with each other for positioning and installation, easy to disassemble, easy to assemble and move.

[0042] The barrel liner 23 is first made of PU material and then placed on the inner support 22 and filled with explosion-proof liquid, which is a flame retardant and explosion-proof agent that can absorb and buffer explosion shock waves and flames.

[0043] The overall connection relationship of the explosion-proof equipment is as follows: the top cover 1 is attached to the top of the bottomless barrel body 2, thereby closing the top opening of the bottomless barrel body 2; the outer fence 3 is mounted on the outer circumference of the bottom of the bottomless barrel body 2, and is annularly attached and connected to the outer circumference of the bottomless barrel body 2 by AB glue or Velcro; then the bottomless barrel body 2 with the top cover 1 and the outer fence 3 is placed as a whole at the center of the base 4.

[0044] Specifically in this embodiment, the inner support 22 and the bottom edge 29 are integrated, and the outer flexible armor layer 27 and the top edge 28 are integrated, and the two parts form an annular cavity. However, in other embodiments, it can also be a multi-part structure with more than two parts, as long as it can form a closed annular cavity, and can accommodate the barrel liner 23, the inner flexible armor layer 25 and the outer support 24 therein to form a multi-layer composite structure, which is not limited here.

[0045] Furthermore, the first flexible material used for the inner support 22 and the outer support 24 is a non-metallic PC board, and the second flexible material used for the inner flexible armor layer 25 and the outer flexible armor layer 27 is a composite fiber material. The composite fiber material has an ultra-high molecular weight polyethylene fiber material as the core layer and aramid fabric as the covering layer, which can effectively intercept fragments flying around.

[0046] Further, please refer again to Figure 3 The top cover 1 includes: a top cover body 12, a top cover groove is opened at the top center of the top of the top cover body 12, a top cover liner 13 is embedded in the top cover groove, and a top cover leather cover 11 is provided on the top cover body 12 and the top cover liner 13; and the top cover body 12 is made of polyethylene material, so that the top cover 1 has a good load-bearing capacity, the top cover liner 13 is an explosion-proof liquid, the explosion-proof liquid is filled into a PU plastic bag, loaded into the top cover groove, and then sealed with the top cover leather cover 11, and the top cover liner 13 is used to weaken the upward shock wave and flame generated by the explosion, and reduce the scattering speed of the fragments flying upward.

[0047] Furthermore, the outer circumferential surface of the bottomless barrel body 2 is also sleeved with a barrel body leather cover 26. The barrel body leather cover 26 plays a protective role for the bottomless barrel body 2.

[0048] Further, please refer again to Figure 4 The outer fence 3 includes: a fixing ring layer 31, an outer fence flexible armor layer 32 and an outer fence leather cover 33. The outer fence flexible armor layer 32 is arranged on the outside of the fixing ring layer 31, and the outer fence leather cover 33 is sleeved outside the fixing ring layer 31 and the outer fence flexible armor layer 32; the fixing ring layer 31 is made of PVC material and coated with flexible fiber to form a cylindrical structure, and the outer fence flexible armor layer 32 is made of aramid plain weave fabric and ultra-high molecular weight polyethylene orthogonal fabric, which can effectively intercept fragments flying from the bottom of the bottomless barrel 2.

[0049] Further, please refer again to Figure 5 The base 4 is a two-layer structure, including a base flexible armor layer 41 located at the upper layer and a base body 42 located at the lower layer. The entire surface of the base 4 is sprayed with polyurea to form a polyurea coating 43. Polyurea is a superelastic material that can undergo a large deformation when subjected to an external force and can restore its shape after the external force is removed. By setting the polyurea coating 43, the integrity of the structure can be maintained after the explosion.

[0050] In addition, the base body 42 is made of polyethylene material, which has good load-bearing capacity after spraying and can effectively support the overall structure of the explosion-proof equipment. The base flexible armor layer 41 also uses aramid plain weave fabric and ultra-high molecular weight polyethylene orthogonal fabric, which can effectively intercept fragments flying to the bottom.

[0051] Furthermore, a strip groove 44 is provided on the bottom surface of the base 4, and the strip groove 44 is connected at both ends along its extension direction, and the strip groove 44 is used for short-distance movement of the explosion-proof equipment. When the explosion-proof equipment needs to be moved over a short distance, the disposal platform 5 is removed from the base 4, the mobile vehicle equipment is placed in the strip groove 44, and the entire base 4 is lifted off the ground by hydraulic jacking, so that the entire explosion-proof equipment can be moved over a short distance.

[0052] The strip groove 44 is provided with a removable treatment platform 5, please refer to Figure 6 The disposal platform 5 is a strip-shaped block that matches the strip groove 44, and its width is not greater than the width of the strip groove 44. The disposal platform 5 is inserted into the base 4 when not in use. When the disposal platform 5 is removed, the disposal platform 5 can be used by the disposal personnel to stand and observe the situation in the barrel.

[0053] Furthermore, a net bag 21 is provided in the bottomless barrel body 2. The net bag 21 is arranged in the central hole of the bottomless barrel body 2. The opening edge of the net bag 21 is connected to the inner circumference of the bottomless barrel body 2. The net bag 21 is used to place explosives and to limit the height of the explosives.

[0054] The usage of this large equivalent flexible composite explosion-proof equipment is:

[0055] (1) Select a flat hardened ground near the place of use and place the base 4 and the disposal platform 5 stably;

[0056] (2) Utilization Figure 7 The gantry 6 shown hangs the bottomless barrel 2 at the center of the base 4;

[0057] (3) Insert the outer fence 3 directly into the bottom of the bottomless barrel 2 from the top of the bottomless barrel 2, and fix the outer fence 3 to the outer circumference of the bottom of the base 4 with Velcro;

[0058] (4) The top cover 1 is attached to the bottomless barrel body 2 and fixed;

[0059] (5) When a short-distance transfer is required, the disposal platform 5 is moved out from the groove under the base 4, the mobile equipment is placed there, and the explosion-proof device is lifted off the ground by hydraulic pressure for a short-distance transfer;

[0060] (6) The disposal platform 5 is an observation platform for the EOD personnel to use the EOD rod to hang the explosives into the net bag 21 inside the bottomless barrel 2. The explosives are hung into the net bag 21 inside the bottomless barrel 2 with the EOD rod, covered with the top cover 1, and handled by professional EOD personnel.

[0061] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A large equivalent flexible composite explosion-proof equipment, characterized in that: include: A base (4), a bottomless barrel body (2) and an outer fence (3) arranged on the base (4), and a top cover (1) fixed to the top of the bottomless barrel body (2), wherein the outer fence (3) is arranged around the bottom of the bottomless barrel body (2); The bottomless barrel body (2) comprises, arranged in sequence from the inside to the outside: an inner support (22), a barrel body liner (23), an inner flexible armor layer (25), an outer support (24) and an outer flexible armor layer (27); the top ends of the inner support (22) and the outer flexible armor layer (27) are connected to a top edge (28), and the bottom ends are connected to a bottom edge (29); the inner support (22), the outer flexible armor layer (27), the top edge (28) and the bottom edge (29) form a closed annular cavity; the barrel body liner (23), the inner flexible armor layer (25) and the outer support (24) are arranged in the annular cavity; The inner support (22), the bottom edge (29) and the outer support (24) are made of a first flexible material, the outer flexible armor layer (27), the top edge (28) and the inner flexible armor layer (25) are made of a second flexible material, and the barrel inner liner (23) is filled with explosion-proof liquid; The inner support (22) and the bottom edge (29) are integrally formed, the outer flexible armor layer (27) and the top edge (28) are integrally formed, the top cover (1) is adhesively connected to the bottomless barrel body (2), and the outer fence (3) is adhesively connected to the bottomless barrel body (2).

2. The large equivalent flexible composite explosion-proof equipment according to claim 1, characterized in that: The first flexible material is a non-metallic PC board; the second flexible material is a composite fiber material, wherein the composite fiber material has an ultra-high molecular weight polyethylene fiber material as a core layer and an aramid woven fabric as a covering layer.

3. The large equivalent flexible composite explosion-proof equipment according to claim 2, characterized in that: The top cover (1) comprises: a top cover body (12); a top cover groove is provided in the middle of the top of the top cover body (12); a top cover liner (13) is provided in the top cover groove; and a top cover leather cover (11) is provided on the outer cover of the top cover body (12) and the top cover liner (13); the top cover body (12) is made of polyethylene material, and the top cover liner (13) is filled with explosion-proof liquid.

4. The large equivalent flexible composite explosion-proof equipment according to claim 1, characterized in that: The surface of the bottomless barrel (2) is covered with a barrel leather cover (26).

5. The large equivalent flexible composite explosion-proof equipment according to claim 2, characterized in that: The outer fence (3) comprises: a fixing ring layer (31), an outer fence flexible armor layer (32) and an outer fence leather cover (33); the outer fence flexible armor layer (32) is arranged on the outside of the fixing ring layer (31), and the outer fence leather cover (33) is sleeved outside the fixing ring layer (31) and the outer fence flexible armor layer (32); the fixing ring layer (31) is made of PVC material, and the outer fence flexible armor layer (32) is made of the second flexible material.

6. The large equivalent flexible composite explosion-proof equipment according to claim 5, characterized in that: The base (4) comprises: a base body (42); a base flexible armor layer (41) is provided on the top surface of the base body (42); and a polyurea coating (43) is provided on the overall outer surface of the base body (42) and the base flexible armor layer (41) after being connected; the base body (42) is made of polyethylene material, and the base flexible armor layer (41) is made of the second flexible material.

7. The large equivalent flexible composite explosion-proof equipment according to claim 6, characterized in that: The bottom surface of the base (4) is provided with a strip groove (44), and the strip groove (44) is connected at both ends along its extension direction; a removable disposal platform (5) is provided in the strip groove (44).

8. The large equivalent flexible composite explosion-proof equipment according to claim 6 or 7, characterized in that: A net bag (21) is provided inside the bottomless barrel body (2).

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