Sealing structure of unmanned aerial vehicle detection device

Abstract

The utility model provides a sealing structure of unmanned aerial vehicle detection equipment, including openable and closeable first casing and second casing, and the first casing and second casing form the placement cavity for the placement of electrical equipment, and the first casing and second casing correspondingly are provided with the first sealing strip and the second sealing strip of mutual occlusion at the splicing place, and the first sealing strip and the second sealing strip are used to form the sealing environment of placement cavity after occlusion, and the first casing and second casing are provided with a plurality of occlusion mechanisms for forming the occlusion relation between the first sealing strip and the second sealing strip, the utility model has the advantages of the synergistic effect of double sealing strips and occlusion mechanism, and realizes multilayer sealing protection.

Description

Technical Field

[0001] This utility model relates to a sealing structure, and more particularly to a sealing structure for a drone detection device. Background Technology

[0002] Drone detection equipment has wide applications in outdoor security, border patrol, air traffic control, and protection of critical facilities. These devices typically employ a multi-modal technology fusion solution, incorporating radar detection, radio spectrum monitoring, and photoelectric identification, and operate through fixed tower installations, vehicle-mounted mobile deployments, or temporary observation point setups. In typical application scenarios, the equipment continuously monitors low-altitude electromagnetic signal characteristics, uses AI algorithms to identify drone models and flight paths, and simultaneously transmits real-time warning data to the command center via encrypted communication modules. To cope with complex outdoor environments, existing equipment is generally equipped with a metal protective shell, lightning protection modules, and temperature control systems. Some products use a modular enclosure structure with rubber sealing strips for basic protection. During installation, bolts are used to tighten the joints of each component, and metal filters are installed at the ventilation holes to prevent foreign objects from entering.

[0003] However, existing sealing structures reveal significant defects during long-term outdoor use. Traditional rubber sealing strips are susceptible to hardening and cracking due to UV radiation and temperature changes. The multi-joint structure of the modular enclosure creates weak points in protection, leading to high water seepage rates at the joints during heavy rain. There is a fundamental conflict between the heat dissipation system and sealing requirements; the filter is easily clogged by sand and dust, causing overheating, while increasing the size of the ventilation holes reduces the protection level. More seriously, the existing bolt tightening method results in uneven stress on the enclosure, creating micron-level gaps under temperature deformation, which increases the rate of salt spray corrosion. These problems directly result in the equipment's mean time between failures (MTBF) being less than half of the design requirement, severely limiting the reliability and lifespan of the outdoor detection system. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a sealing structure for a drone detection device that improves sealing performance.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sealing structure for a drone detection device, comprising an openable and closable first housing and a second housing, wherein a placement cavity for placing an electrical device is formed between the first housing and the second housing, and a first sealing strip and a second sealing strip that can interlock are correspondingly provided at the joint of the first housing and the second housing, wherein the first sealing strip and the second sealing strip interlock to form a sealed environment for the placement cavity, and a plurality of interlocking mechanisms for forming an interlocking relationship between the first sealing strip and the second sealing strip are provided on the first housing and the second housing.

[0006] The beneficial effects of this utility model are as follows: Through the synergistic effect of the double sealing strips and the interlocking mechanism, multi-layer sealing protection is achieved. The interlocking structure of the first and second sealing strips forms a continuous physical barrier layer, effectively isolating external moisture, dust, and other contaminants. The interlocking mechanism applies mechanical force to generate uniform clamping force between the shells, avoiding sealing failure caused by local deformation. As a preferred embodiment, the interlocking mechanism can adopt a lever-type locking structure, with its hinge point located at the end of the shell. The locking tongue forms a sliding fit with the side wall of the shell. When the lock is closed, the pressure at the shell joint is transmitted from the edge to the center through the lever principle, ensuring a uniform interlocking depth of the sealing strips. Furthermore, the interlocking surface of the sealing strip can be designed with a wavy or sawtooth profile, forming multiple contact lines when closed, further enhancing sealing reliability.

[0007] Furthermore, the first sealing strip and the second sealing strip are symmetrically arranged. The first sealing strip is provided with an elastic protrusion and a snap-fit ​​groove. The elastic protrusion on the first sealing strip engages with the snap-fit ​​groove on the second sealing strip, and the elastic protrusion on the second sealing strip engages with the snap-fit ​​groove on the first sealing strip.

[0008] This technical solution achieves redundant sealing through a two-stage interlocking structure. The bidirectional engagement of the elastic synapse and the locking groove compensates for gaps caused by processing errors. As a preferred method, the elastic synapse can be injection molded from silicone rubber, with a reinforcing rib structure at its root. This provides sufficient elastic recovery force under pressure deformation while preventing root tearing. The inner wall of the locking groove can be designed as a tapered surface, forming an interference fit with the spherical end of the elastic synapse, producing a progressive compression effect during closure. The labyrinthine channel formed between the two sealing lines extends the moisture penetration path, and combined with the hydrophobic coating treatment on the sealing strip surface, it can further improve moisture-proof performance.

[0009] Furthermore, the opening diameter of the snap-fit ​​groove is smaller than the opening diameter at the bottom of the groove, and the elastic protrusion includes a snap-fit ​​block that mates with the bottom of the snap-fit ​​groove and a connecting block that mates with the opening of the snap-fit ​​groove. The outer diameter of the snap-fit ​​block is smaller than the opening diameter at the bottom of the snap-fit ​​groove, and the outer diameter of the connecting block is larger than the opening diameter at the opening of the snap-fit ​​groove.

[0010] This dimensional design achieves a self-locking sealing structure. The clearance fit between the locking block and the bottom of the groove facilitates assembly and positioning, while the interference fit between the connecting block and the opening generates continuous clamping force. As a preferred approach, the locking block can be designed with a trapezoidal cross-section, with its bevel angle matching the chamfer of the inner wall of the locking groove. During closure, the bevel guides automatically correct positional deviations. The connecting block can be equipped with an annular flange, whose outer diameter is larger than the opening diameter, utilizing the material's compression resilience to form a radial seal. This structure compensates for material thermal expansion and contraction through elastic deformation during temperature changes, preventing seal failure due to dimensional variations.

[0011] Furthermore, the engagement mechanism includes a first latch and a second latch respectively hinged to the corresponding ends of the first housing and the second housing. The other end of the first latch is hinged to the middle of the second latch. The second housing is provided with a locking tongue that cooperates with the second latch. The position in which the second latch cooperates with the locking tongue and is fixed so that the first sealing strip and the second sealing strip are in an engagement state.

[0012] This linkage locking mechanism achieves multi-point synchronous locking, converting operating force into uniform sealing pressure through lever transmission. As a preferred embodiment, the hinge point between the first latch and the housing can be located at 1 / 3 of the housing length from the mating surface, while the central hinge point of the second latch forms a fulcrum. When the latch tongue engages, the latch arm forms a three-stage lever, resulting in a more uniform pressure distribution on the sealing strip contact surface. The latch tongue can be designed as an eccentric wheel structure, generating gradually increasing clamping force during rotational engagement, and a limiting boss is provided to prevent overpressure damage to the sealing strip.

[0013] Furthermore, the second latch is symmetrically provided with lock holes, and the latch tongue cooperates with the lock holes to fix the second latch. The latch can be unlocked by pressing.

[0014] This quick-release structure balances sealing reliability with ease of operation. As a preferred option, the latch can integrate a spring-loaded locking mechanism, with a guide ramp on the inner wall of the lock hole. When pressed to unlock, the locking pin slides out of the lock hole along the ramp, while a torsion spring at the latch hinge automatically springs open. The edge of the lock hole can be covered with a rubber buffer pad to absorb vibration and impact during locking, preventing accidental disengagement. The latch tongue can be designed with an arrow-shaped guide structure to guide the latch to accurate alignment when closed.

[0015] Furthermore, the first housing is provided with a plurality of through holes for inserting the antenna. The diameter of the through holes is larger than the outer diameter of the antenna, and the radial distance between the through holes and the antenna is filled by dispensing adhesive.

[0016] This potting and sealing solution effectively solves the problem of sealing the interface of irregularly shaped components. As a preferred method, an array of annular grooves can be machined on the inner wall of the through hole, forming a mechanically interlocking structure after the adhesive cures. A two-component polyurethane adhesive can be used for potting, which combines elasticity and adhesion after curing. The antenna surface can be plasma treated to improve adhesive adhesion, and a flared structure is set at the end of the through hole to guide the adhesive filling and ensure no air bubbles remain. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of an embodiment of the present utility model; Figure 2 This is a partial enlarged view of the engagement mechanism in an embodiment of the present invention; Figure 3This is a partial side view of the engagement mechanism in an embodiment of the present invention; Figure 4 This is a partial cross-sectional view of the sealing structure in an embodiment of the present invention. Detailed Implementation

[0018] This utility model embodiment provides a sealing structure for a drone detection device, as shown in the example below. Figure 1-4 As shown: The enclosure comprises two main components, a first housing 1 and a second housing 2, which are connected by a hinge mechanism to form an openable and closable box structure. When the first housing 1 and the second housing 2 are assembled, they together form a cavity (not shown) for placing electrical equipment. Symmetrically arranged at the mating surfaces are a first sealing strip 4 and a second sealing strip 5 that cooperate with each other. The first sealing strip 4 is located at the edge of the first housing 1, and the second sealing strip 5 is located at the edge of the second housing 2. The two seals form a double sealing structure through the cross-cooperation of elastic protrusions 41 and snap-fit ​​grooves 51. Each sealing strip has multiple elastic protrusions 41 and snap-fit ​​grooves 51 spaced apart. Each elastic protrusion 41 consists of a connecting block 412 and a snap-fit ​​block 411 at its end. The snap-fit ​​groove 51 adopts a trapezoidal design where the diameter of the opening 521 is smaller than the diameter of the groove bottom 522.

[0019] When the housing is closed, the elastic protrusion 41 of the first sealing strip 4 engages with the snap-fit ​​groove 51 of the second sealing strip 5, while the elastic protrusion of the second sealing strip 5 engages with the snap-fit ​​groove of the first sealing strip 4 in the opposite direction, forming a cross-interlocking sealing interface. The tortuous channel formed between the two sets of sealing strips constitutes a labyrinthine anti-permeability structure. To ensure that the sealing strips fully engage, multiple engagement mechanisms 6 are provided on both sides of the housing. Each engagement mechanism 6 includes a first latch 61 hinged to the end of the first housing 1 and a second latch 62 hinged to the end of the second housing 2. The middle part of the second latch 62 is connected to the end of the first latch 61 through a hinge shaft, and a locking seat with a locking tongue 621 is provided at the corresponding position of the second housing 2. When the housing is closed, the second latch 62 is pressed down to drive the first latch 61 to rotate, and the locking tongue 621 engages with the locking hole 622 of the second latch 62 to complete the locking. At this time, the edge of the housing is tightened, causing the sealing strip to undergo compression deformation.

[0020] Multiple antenna penetration holes 11 are provided on the top surface of the first housing 1. The diameter of the penetration holes 11 is larger than the outer diameter of the antenna 7, and the resulting annular gap is completely filled with epoxy resin. When the housing is closed, the elastic protrusions 41 of the double-sealing structure, under the pressing action of the engagement mechanism 6, form an interference fit between their connecting blocks 412 and the opening 521 of the locking groove 51, while the locking blocks 411 form a clearance fit at the bottom 522 of the locking groove 51. This structure allows for slight displacement without compromising the seal when subjected to vibration, and the synergistic effect of the labyrinthine channel and the elastic sealing strip effectively prevents moisture penetration. When it is necessary to open the housing, pressing the latch 621 releases the lock of the second latch 62, thus separating the housing.

[0021] The above embodiments are merely one preferred embodiment of the present utility model. Ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model's technical solution are all included within the protection scope of the present utility model.

Claims

1. A sealing structure for a drone detection device, comprising an openable and closable first housing and a second housing, wherein a cavity for accommodating electrical equipment is formed between the first housing and the second housing, characterized in that: The first housing and the second housing are respectively provided with a first sealing strip and a second sealing strip that can interlock with each other. After the first sealing strip and the second sealing strip interlock, they are used to form a sealed environment for the placement cavity. The first housing and the second housing are provided with a plurality of interlocking mechanisms for forming an interlocking relationship between the first sealing strip and the second sealing strip.

2. The sealing structure of the UAV detection device according to claim 1, characterized in that: The first sealing strip and the second sealing strip are symmetrically arranged. The first sealing strip is provided with an elastic protrusion and a snap-fit ​​groove. The elastic protrusion on the first sealing strip engages with the snap-fit ​​groove on the second sealing strip, and the elastic protrusion on the second sealing strip engages with the snap-fit ​​groove on the first sealing strip.

3. The sealing structure of the UAV detection device according to claim 2, characterized in that: The opening diameter of the snap-fit ​​groove is smaller than the opening diameter at the bottom of the groove. The elastic protrusion includes a snap block that mates with the bottom of the snap-fit ​​groove and a connecting block that mates with the opening of the snap-fit ​​groove. The outer diameter of the snap block is smaller than the opening diameter at the bottom of the snap-fit ​​groove, and the outer diameter of the connecting block is larger than the opening diameter at the opening of the snap-fit ​​groove.

4. The sealing structure of the UAV detection device according to claim 1, characterized in that: The engagement mechanism includes a first latch and a second latch respectively hinged to the corresponding ends of the first housing and the second housing. The other end of the first latch is hinged to the middle of the second latch. The second housing is provided with a latching tongue that cooperates with the second latch. The position in which the second latch and the latch are fixed together makes the first sealing strip and the second sealing strip in an engagement state.

5. The sealing structure of the UAV detection device according to claim 4, characterized in that: The second latch has symmetrically arranged lock holes. The latch tongue cooperates with the lock holes to fix the second latch. The latch can be unlocked by pressing.

6. The sealing structure of the UAV detection device according to claim 1, characterized in that: The first housing is provided with a plurality of through holes for inserting the antenna. The diameter of the through holes is larger than the outer diameter of the antenna. The radial distance between the through holes and the antenna is filled by dispensing adhesive.

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