CN218991048U - Shelter shell for noise-reducing explosion-proof shelter - Google Patents

Abstract

The utility model provides a shelter shell for a noise-reduction explosion-proof shelter, which belongs to the technical field of military shelter bodies, wherein an inner matched primer layer, a damping paint layer and a fireproof paint layer are sequentially arranged on the inner wall of the shelter shell, an outer matched primer layer and an explosion-proof paint layer are sequentially arranged on the outer wall of the shelter shell, and the inner matched primer layer and the outer matched primer layer are respectively coated on a substrate layer of the shelter shell; according to the utility model, the noise reduction and sound insulation design is adopted in the cabin, so that the personnel comfort is improved, the operational performance of equipment is ensured, and the explosion-proof coating is adopted outside the cabin, so that the explosion-proof and elastic-proof performance of the military shelter is improved; the fireproof coating is well matched on the damping coating layer, the expansion performance of the fireproof coating is not affected, and the fireproof coating cannot fall off from the damping coating to fail when a fire occurs.

Description

Shelter shell for noise-reducing explosion-proof shelter

Technical Field

The utility model relates to the technical field of military shelter equipment, in particular to a shelter shell for a noise-reduction explosion-proof shelter.

Background

The polyurea elastomer has the advantages of low cost, light weight, multiple impact energy absorption and the like, has remarkable application value for effectively improving the antiknock performance of the structure, and attracts a plurality of students at home and abroad to research the antiknock performance. For example, the application number 202022225567.2 discloses a shelter bulletproof and antiknock composite large plate, which comprises a rigid bulletproof layer, an explosion-proof heat-insulating layer and an elastic bulletproof layer, wherein the rigid bulletproof layer comprises a fiber layer, a polyurea elastomer layer, a ceramic structure layer and a mixed woven layer, the fiber layer is mixed woven cloth made of carbon fibers and aramid fibers, and the polyurea elastomer layer is formed by spraying polyurea elastomer on the surface of the ceramic structure layer.

However, the above structure is found to have the disadvantages of noise reduction and high temperature resistance, and attention is paid to:

firstly, noise of a square cabin of a command control system not only affects normal work of staff in the cabin, but also has serious influence on combat performance and guarantee of equipment in the cabin; therefore, the study of the shelter noise reduction design has important significance for improving the comfort of staff and ensuring the combat performance of equipment;

secondly, facing strong fire threat in the future battlefield, the reinforced shelter without bulletproof and fireproof is easy to destroy, and cabin-mounted equipment and personnel are difficult to play a role in actual combat, especially when the transport vehicle shuttles in bullet and rain in a gun, gao Wenzhi, the existing fireproof layer polyurethane foam material can soften, flow and even fire, so that the aim of fireproof protection cannot be achieved at all.

Disclosure of Invention

According to the shelter shell for the noise-reduction and explosion-proof shelter, the noise-reduction and sound-insulation design is adopted in the shelter, so that the comfort of personnel is improved, the operational performance of equipment is guaranteed, and the explosion-proof coating is adopted outside the shelter, so that the explosion-proof and elastic performance of the military shelter is improved.

The utility model provides a shelter shell for a noise-reduction explosion-proof shelter, wherein an inner matched primer layer, a damping paint layer and a fireproof paint layer are sequentially arranged on the inner wall of the shelter shell, an outer matched primer layer and an explosion-proof paint layer are sequentially arranged on the outer wall of the shelter shell, and the inner matched primer layer and the outer matched primer layer are respectively coated on a substrate layer of the shelter shell.

Preferably, the fire-retardant coating in the fire-retardant coating layer is an intumescent fire-retardant coating.

Preferably, the intumescent coating is an aqueous intumescent coating.

Preferably, the matched primer in the inner matched primer layer and the outer matched primer layer is an epoxy or polyurethane primer.

Preferably, the annular damping paint in the damping paint layer is an aqueous or solvent-free damping paint.

Preferably, the shelter shell is made of any one of aluminum alloy, kevlar fiber and glass fiber reinforced plastic.

Preferably, the explosion-proof coating in the explosion-proof coating layer is any one of a polycarbosiloxane coating, a polyurea coating and a polyurethane coating.

Preferably, the thickness of the explosion-proof paint layer is 0.3-5 mm; the thickness of the fireproof coating layer is 0.3-5 mm; the thickness of the damping paint layer is 0.5-4 mm; the thickness of the inner matched primer layer and the outer matched primer layer is 0.01-0.05 mm.

Preferably, the thickness of the explosion-proof paint layer is 2mm; the thickness of the fireproof coating layer is 1mm; the thickness of the damping paint layer is 2mm; the thickness of the inner and outer primer layers was 0.03mm.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the expansion type fireproof coating is designed in the shelter, the thickness of the expansion type fireproof coating is rapidly expanded to tens of times of that of the original honeycomb or sponge-shaped carbon layer under the condition of fire in the shelter, heat diffusion can be effectively isolated by virtue of the expansion type fireproof coating, time is strived for personnel to escape, and a damping layer is designed between a shell and the fireproof coating, so that noise in the shelter can be reduced, comfort of personnel is improved, the operational performance of equipment is ensured, and the fireproof coating is well matched on the damping coating layer, so that the expansion performance of the fireproof coating is not influenced, and the personnel cannot fall off from the damping coating to lose efficacy when the fire is received; the matched primer is lap joint between the coating and the shell material, so that the adhesive force of the coating is improved; the outer polyurea material provides ballistic and blast protection.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the utility model and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of a shelter housing for a noise-reducing explosion-proof shelter according to the present utility model.

Wherein: the fire-proof paint layer 1, the damping paint layer 2, the inner matched primer layer 3, the shelter shell 4, the outer matched primer layer 5, the explosion-proof paint layer 6, the shelter box inner part 7 and the shelter box outer part 8.

Detailed Description

The following description of the embodiments of the utility model will be made apparent and complete in conjunction with the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which would be apparent to one of ordinary skill in the art without making any inventive effort are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, only for convenience of description and simplification of the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance.

In the description of the utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in the utility model will be understood by those of ordinary skill in the art in a specific context.

As shown in fig. 1, the utility model provides a shelter shell for a noise-reduction and explosion-proof shelter, wherein an inner matched primer layer 3, a damping paint layer 2 and a fireproof paint layer 1 are sequentially arranged on the inner wall of a shelter shell 4, namely, the inside 7 of a shelter box, an outer matched primer layer 5 and an explosion-proof paint layer 6 are sequentially arranged on the outer wall of the shelter shell 4, namely, the outside 8 of the shelter box, and the inner matched primer layer 3 and the outer matched primer layer 5 are respectively coated on a substrate layer of the shelter shell 4, namely, the inner matched primer layer 3 and the outer matched primer layer 5 are directly contacted with the substrate layer. The fireproof paint in the fireproof paint layer 1 is an expansion fireproof paint; preferably an aqueous intumescent fire retardant coating.

The matched primer in the inner matched primer layer 3 and the outer matched primer layer 5 is epoxy or polyurethane primer, preferably epoxy primer.

The annular damping paint in the damping paint layer 2 is water-based or solvent-free damping paint.

In the present utility model, the shelter shell 4 is made of any one of aluminum alloy, kevlar fiber and glass fiber reinforced plastic, preferably kevlar fiber, and when made of aluminum alloy, preferably aluminum alloy 7075.

The explosion-proof paint in the explosion-proof paint layer 6 is any one of a polycarbosiloxane paint, a polyurea paint and a polyurethane paint, and is preferably a polyurea paint.

The thickness of the explosion-proof coating layer 6 is 0.3-5 mm, preferably 2mm; the thickness of the fireproof paint layer 1 is 0.3-5 mm, preferably 1mm; the thickness of the damping paint layer 2 is 0.5-4 mm, preferably 2mm; the thickness of the inner primer layer 3 and the outer primer layer 5 is 0.01 to 0.05mm, preferably 0.03mm.

The preparation method of the technical scheme comprises the following steps:

s1, cleaning greasy dirt on the surface of the shelter shell.

S2, spraying the damping paint layer 2 on the inner side of the inner matched primer and the outer side shelter shell, and drying at normal temperature for 24-48 hours, wherein the dry film thickness is 2mm.

S3, spraying epoxy primer on the inner side shelter shell and the outer side shelter shell, and drying for 4-12 hours at normal temperature, wherein the dry film thickness is 0.03mm.

S4, spraying a fireproof coating layer on the inner side epoxy coating layer, and drying for 48 hours, wherein the dry film thickness is 1mm;

s5, spraying the polyurea layer on the epoxy primer coating outside the shelter shell, wherein the thickness is 2mm.

The properties of the damping paint, the fireproof paint layer and the polyurea layer in the above examples were tested respectively, and the experimental results are shown in the following table:

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coating Properties	Polyurea layer
		Gel time(s)	8
Time of surface dry(s)	12
		Tensile Strength (MPa)	32
Elongation at break (%)	400
		Tear strength (N/mm)	95
Hardness (Shore A)	90
		Wear resistance (mg)	15

The expansion type fireproof paint is designed in the shelter, and under the condition of fire in the shelter, the thickness of the expansion type fireproof paint is rapidly expanded to tens of times of the original thickness, so that a honeycomb or sponge carbon layer is formed. The expansion type fireproof paint can effectively isolate heat diffusion, and strive for time for escape of people. Between casing and fire-proof coating, design damping layer can reduce the noise in the cabin, improves staff's travelling comfort and guarantees the operational performance of equipment to fire-proof coating is good to the collocation on damping coating layer, can not influence fire-proof coating's expansion properties, when receiving the fire, can not follow damping coating and drop inefficacy.

The matched primer is lap joint between the coating and the shell material, so that the adhesive force of the coating is improved.

The outer polyurea material provides ballistic and blast protection. The phase change mechanism of polyurea is related to the material strain rate, the test temperature, i.e. the coating exhibits a rubbery state when the strain rate is low; when the strain rate is further increased and is consistent with the vibration frequency of the coating chain segment, the coating is converted from a rubber state to a leather state; as the strain rate increases further, the coating will change from the leather state to the glassy state. Namely, the polyurea material keeps a loose state in a normal state, is soft and elastic, and once the polyurea material is impacted or extruded severely, molecules are mutually locked immediately, and are quickly tightened and hardened to digest external force, so that a protective layer is formed, and the shelter shell is protected by the polyurea coating, so that the shelter shell has excellent shock resistance and excellent energy absorption.

The foregoing is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be comprehended within the scope of the present utility model.

Claims (9)

1. The square cabin shell for the noise-reduction explosion-proof square cabin is characterized in that an inner matched primer layer, a damping paint layer and a fireproof paint layer are sequentially arranged on the inner wall of the square cabin shell, an outer matched primer layer and an explosion-proof paint layer are sequentially arranged on the outer wall of the square cabin shell, and the inner matched primer layer and the outer matched primer layer are respectively coated on a substrate layer of the square cabin shell.

2. A shelter casing for a noise and explosion proof shelter as claimed in claim 1 in which the fire retardant coating in the fire retardant coating layer is an intumescent fire retardant coating.

3. A shelter casing for a noise and explosion proof shelter as claimed in claim 2 in which the intumescent fire retardant coating is an aqueous intumescent fire retardant coating.

4. A shelter casing for a noise and explosion suppression shelter in accordance with claim 1, wherein the primer in the inner and outer primer layers is an epoxy or polyurethane primer.

5. A shelter casing for a noise and explosion proof shelter as claimed in claim 1 in which the annular damping coating in the damping coating layer is an aqueous or solvent free damping coating.

6. The shelter shell for the noise-reduction and explosion-proof shelter of claim 1, in which the shelter shell is made of any one of aluminum alloy, kevlar and glass fiber reinforced plastic.

7. The shelter shell for the noise-reducing and explosion-proof shelter of claim 1, in which the explosion-proof paint in the explosion-proof paint layer is any one of a polycarbosiloxane paint, a polyurea paint and a polyurethane paint.

8. A shelter casing for a noise and explosion proof shelter as claimed in any one of claims 1 to 7 in which the explosion proof paint layer is 0.3 to 5mm thick; the thickness of the fireproof coating layer is 0.3-5 mm; the thickness of the damping paint layer is 0.5-4 mm; the thickness of the inner matched primer layer and the outer matched primer layer is 0.01-0.05 mm.

9. A shelter casing for a noise and explosion proof shelter as claimed in claim 8 in which the explosion proof paint layer is 2mm thick; the thickness of the fireproof coating layer is 1mm; the thickness of the damping paint layer is 2mm; the thickness of the inner and outer primer layers was 0.03mm.

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