A launch box end cover with foreign matter impact prevention function

Abstract

The application relates to a launch box end cover with a foreign matter impact prevention function, which comprises a cover body, a flange and a press ring; an impact resistance function layer is arranged on the outer surface of the cover body; the impact resistance function layer comprises a plurality of circumferentially arranged impact resistance petals; a plurality of split grooves are radially arranged on the cover body, and the impact resistance petals are covered on the corresponding split grooves. Compared with the prior art, the launch box end cover with the foreign matter impact prevention function has the advantages of simple operation, low cost, the risk of resisting hail and other foreign matters, and unattended operation.

Description

Technical Field

[0001] This invention belongs to the field of missile launch box end cover technology, and relates to a launch box end cover with foreign object impact protection function. Background Technology

[0002] Rapid launch technology is a development trend in missile weapon systems. Currently, most missile models in my country utilize launch canister (tube) technology, replacing the original bare missile launch, effectively improving anti-jamming performance and hit probability. The end caps serve a sealing function during storage, effectively preserving the missile and extending its lifespan. During launch, the end caps allow for unobstructed access, ensuring the missile's launch is not affected. The end caps play a crucial role in the launch system.

[0003] With the development of unmanned weapon systems, unmanned missile systems have also been put on the agenda. The protective cover of the end cap needs to be removed during unmanned combat readiness duty. Moreover, unmanned equipment is generally exposed to harsh environments, so the end cap needs to withstand conditions such as hail and sandstorms. This requires the end cap to be able to resist the impact of foreign objects such as hail and stones.

[0004] Currently, there is no known technical solution for preventing impact from foreign objects such as hail. The present invention aims to provide an end cap that can resist the impact of foreign objects such as hail. Summary of the Invention

[0005] The purpose of this invention is to provide a launch box end cap with foreign object impact protection function, which can resist the impact of foreign objects such as hail and realize unattended operation of the system.

[0006] The objective of this invention can be achieved through the following technical solutions: A launch box end cover includes a cover body, a flange, and a pressure ring; characterized in that an impact-resistant functional layer is provided on the outer surface of the cover body; The impact-resistant functional layer includes multiple impact-resistant lobes arranged in parallel along the circumferential direction; The cover has multiple radially arranged grooves, and the impact-resistant flaps cover the corresponding grooves.

[0007] This invention adds an impact-resistant functional layer to the outer surface of the launch box end cover to resist the impact of foreign objects such as hail without being damaged, enabling unattended operation; at the same time, by covering the split grooves of the cover with impact-resistant petals, the relatively fragile structure on the cover is protected, improving the protection effect of the end cover.

[0008] In some specific implementations, the number of the impact-resistant flaps corresponds to the number of blocks in the cover.

[0009] In some specific embodiments, the impact-resistant functional layer is concentrically arranged with multiple split grooves; the angle between the centerline of the impact-resistant flap and the covered split groove is 1~20° to fully cover the groove and avoid overlapping with the split groove; at the same time, the angle is controlled to be no greater than 20° to avoid difficulty in bonding the cover fragments.

[0010] In some specific embodiments, the cover has a dome structure; the impact-resistant petals have a corresponding arc-shaped fan structure; the cover has a pyramid structure, and the impact-resistant petals have a corresponding planar triangular structure.

[0011] In some specific embodiments, the height of the cover is 50~500 mm.

[0012] In some specific embodiments, the impact-resistant flap has an insert block on one side and a corresponding slot on the other side; Adjacent impact-resistant flaps are connected to slots via interlocking inserts.

[0013] In some specific embodiments, the slot is composed of spaced-apart protrusions, and the insert is inserted between the protrusions.

[0014] In some specific embodiments, the outer edge of the cover body is provided with a cover body skirt, and the inner edge of the flange is provided with a corresponding countersunk platform. The bottom side of the impact-resistant flap is provided with an outwardly protruding positioning block, and the bottom side of the pressure ring is provided with a corresponding positioning groove. The pressure ring is pressed onto the flange and clamps and fixes the positioning block in the positioning groove, while the outer edge of the cover body is pressed onto the sinking platform by the impact-resistant flap.

[0015] In some specific embodiments, the material of the impact-resistant functional layer is selected from at least one of aluminum alloy, stainless steel, carbon steel, glass fiber reinforced plastic, polyurethane or unsaturated polyester resin; The flange is made of at least one of aluminum alloy, stainless steel or carbon steel; The material of the cover is selected from at least one of epoxy resin foam, glass fiber reinforced epoxy resin, phenolic glass fiber reinforced plastic or polyurethane foam. The material of the pressure ring is selected from at least one of aluminum alloy, stainless steel or carbon steel.

[0016] In some specific implementations, for metallic materials, machining methods can be used for molding; for non-metallic materials, at least one of hand lay-up molding, press hot pressing molding, autoclave molding, mold molding, and vacuum-assisted molding can be used for molding.

[0017] In some specific embodiments, the impact-resistant functional layer is bonded to the outer surface of the cover body to ensure that the impact-resistant functional sheet and the cover body fragments fly out together when the end cap breaks.

[0018] In some specific embodiments, the adhesive used is selected from at least one of polysulfide rubber sealant, silicone sealant, or organosilicone rubber.

[0019] In some specific embodiments, the impact-resistant functional layer is further provided with a surface functional coating, which is selected from at least one of electromagnetic shielding coating, three-proof coating, sealing coating or ablation-resistant coating.

[0020] In some specific embodiments, the surface functional coating application process is selected from at least one of thermal spraying, air spraying, or brushing.

[0021] In some specific implementations, the end cap should meet the requirements of the launch box system, including pressure resistance, opening performance, and environmental adaptability.

[0022] Compared with the prior art, the present invention has the following beneficial effects: The launch box end cover with anti-hail and other foreign object impact function involved in this invention is simple to operate, low in cost, can resist the risk of impact from hail and other foreign objects, and can be operated unattended. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a launch box end cover with foreign object impact protection function in this invention; Figure 2 This is a schematic diagram of the flange structure; Figure 3 This is a schematic diagram of the pressure ring structure; Figure 4 This is a schematic diagram of the cover structure; Figure 5 This is a schematic diagram of the structure of the impact-resistant flap; Figure 6 A schematic diagram of the structure of a pyramidal cap; Explanation of markings in the diagram: 1-Flange, 2-Pressure ring, 3-Cover, 4-Impact-resistant functional layer, 5-Impact-resistant flap, 6-Insertion block, 7-Slot, 8-Positioning block, 9-Positioning groove. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The following embodiments are based on the above-described technical solutions of the present invention, providing detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0025] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," "third," etc., used to describe a common object only indicate different instances of the same object, and do not imply that the objects described in this way must be in a given order, whether temporally, spatially, sequentially, or in any other way.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] Example 1: like Figure 1 The transmitter box end cover shown includes a cover body 3, a flange 1 and a pressure ring 2. The outer surface of the cover body 3 is provided with an impact-resistant functional layer 4. The impact-resistant functional layer 4 includes 8 impact-resistant petals 5 arranged in parallel along the circumference. The cover body 3 has 8 separate grooves arranged radially along the circumference, and the impact-resistant petals 5 cover the corresponding separate grooves.

[0030] This embodiment adds an impact-resistant functional layer 4 to the outside of the cover 3 of the launch box end cover to resist the impact of foreign objects such as hail without being damaged, thus enabling unattended operation; at the same time, by covering the split groove of the cover 3 with impact-resistant petals 5, the relatively fragile structure on the cover 3 is protected, thereby improving the protection effect of the end cover.

[0031] The impact-resistant functional layer 4 is concentrically arranged with the split groove; the angle between the centerline of the impact-resistant petal 5 and the covered split groove is 5°. The cover 3 has a circular dome structure; the impact-resistant petal 5 has a corresponding arc-shaped fan structure. The height of the cover 3 is 80 mm.

[0032] One side of the impact-resistant flap 5 is provided with an insert block 6, and the other side is provided with a corresponding slot 7; adjacent impact-resistant flaps 5 are connected to the slot 7 through the insert block 6 and the slot 7. Specifically, the slot 7 is composed of spaced-out protrusions, and the insert block 6 is inserted between the protrusions.

[0033] The outer edge of the cover body 3 is provided with a cover body skirt, the inner edge of the flange 1 is provided with a corresponding recessed platform, the bottom side of the impact-resistant flap 5 is provided with an outwardly protruding positioning block 8, and the bottom side of the pressure ring 2 is provided with a corresponding positioning groove 9; the pressure ring 2 presses onto the flange 1 and clamps and fixes the positioning block 8 in the positioning groove 9, while the impact-resistant flap 5 presses the outer edge of the cover body 3 onto the recessed platform.

[0034] The impact-resistant functional layer 4 is made of aluminum alloy and machined; the flange 1 and pressure ring 2 are made of 316L stainless steel; the cover 3 is made of glass fiber reinforced epoxy resin and molded.

[0035] The impact-resistant functional layer 4 is bonded to the outer surface of the cover 3 with polysulfide rubber sealant to ensure that the impact-resistant functional piece and the fragments of the cover 3 fly out together when the end cap breaks.

[0036] The impact-resistant functional layer 4 is also provided with a surface functional coating, specifically a three-proof coating, which is obtained by air spraying process.

[0037] The end cap remained intact after being subjected to simulated hail and gravel impacts.

[0038] Implementation Plan 2: A launch box end cap, differing from Embodiment 1 only in that: The cover 3 is made of epoxy resin foam; the flange 1 is made of 5A06 aluminum alloy; the pressure ring 2 is made of 316L stainless steel; the cover 3 has a four-sided pyramidal structure with a height of 100mm, and breaks into 4 pieces; the impact-resistant functional layer 4 consists of 4 impact-resistant petals 5 (such as...). Figure 6 As shown, the impact-resistant flap 5 is a 2mm epoxy fiberglass hot-pressed material, with its centerline forming an 8° angle with the split groove. Polysulfide rubber sealant is used to bond the impact-resistant flap 5 to the cover 3. The end cap remained intact after simulated hail and gravel impacts. The surface functional coating includes an electromagnetic shielding coating and a three-proof coating sequentially applied to the impact-resistant functional layer 4. The electromagnetic shielding coating is applied by thermal spraying zinc followed by brushing with conductive adhesive, while the three-proof coating is applied by air spraying. The rest is the same as in Example 1.

[0039] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A launch box end cover, comprising a cover body (3), a flange (1), and a pressure ring (2); characterized in that, The outer surface of the cover (3) is provided with an impact-resistant functional layer (4); The impact-resistant functional layer (4) includes multiple impact-resistant petals (5) arranged in parallel along the circumference. The cover (3) has multiple split grooves arranged radially along its upper edge, and the impact-resistant flaps (5) cover the corresponding split grooves.

2. The launch box end cover according to claim 1, characterized in that, The impact-resistant functional layer (4) is concentrically arranged with multiple split grooves; the angle between the center line of the impact-resistant flap (5) and the covered split groove is 1~20°.

3. The launch box end cover according to claim 1, characterized in that, The cover (3) has a dome structure; the impact-resistant petals (5) have a corresponding arc-shaped fan structure; the cover (3) has a pyramid structure, and the impact-resistant petals (5) have a corresponding planar triangular structure.

4. The launch box end cover according to claim 3, characterized in that, The height of the cover (3) is 50~500 mm.

5. The launch box end cover according to claim 3, characterized in that, The impact-resistant flap (5) has an insert (6) on one side and a corresponding slot (7) on the other side. Adjacent impact-resistant flaps (5) are connected to slots (7) via plug-in blocks (6).

6. The launch box end cover according to claim 3, characterized in that, The outer edge of the cover (3) is provided with a cover skirt, and the inner edge of the flange (1) is provided with a corresponding countersunk platform. The impact-resistant flap (5) has an outwardly protruding positioning block (8) on its bottom side, and the pressure ring (2) has a corresponding positioning groove (9) on its bottom side. The pressure ring (2) is pressed onto the flange (1) and the positioning block (8) is clamped and fixed in the positioning groove (9). At the same time, the outer edge of the cover (3) is pressed onto the sinking platform by the impact-resistant flap (5).

7. The launch box end cover according to claim 1, characterized in that, The material of the impact-resistant functional layer (4) is selected from at least one of aluminum alloy, stainless steel, carbon steel, glass fiber reinforced plastic, polyurethane or unsaturated polyester resin; The material of the flange (1) is selected from at least one of aluminum alloy, stainless steel or carbon steel; The material of the cover (3) is selected from at least one of epoxy resin foam, glass fiber reinforced epoxy resin, phenolic glass fiber reinforced plastic or polyurethane foam. The material of the pressure ring (2) is selected from at least one of aluminum alloy, stainless steel or carbon steel.

8. The launch box end cover according to claim 1, characterized in that, The impact-resistant functional layer (4) is bonded to the outer surface of the cover (3).

9. The launch box end cover according to claim 8, characterized in that, The adhesive used is selected from at least one of polysulfide rubber sealant, silicone sealant or organosilicone rubber.

10. The launch box end cover according to claim 1, characterized in that, The impact-resistant functional layer (4) is further provided with a surface functional coating, which is selected from at least one of electromagnetic shielding coating, three-proof coating, sealing coating or ablation-resistant coating.

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