Wireless early warning broadcasting device with protective structure

Abstract

The utility model relates to wireless early warning broadcast technical field, concretely relates to a wireless early warning broadcast equipment with protection structure, its core includes connecting screw cylinder and inside fixed insulating metal clamping piece, is used for clamping wire conductor to guarantee conduction, two groups of protection screw cylinders are installed through the thread outside connecting screw cylinder, and the sealing washer of screwing place is pressed to form axial seal, the front end of protection screw cylinder is fixed and sets up the insertion cylinder, and the adjacent position coaxially fixed outer screw clamping cylinder, its outside assembly locking screw cylinder, wire outer sheath inserts insertion cylinder and extends to the annular gap of insertion cylinder and outer screw clamping cylinder, and the locking screw cylinder is driven outer screw clamping cylinder radial elastic contraction clamping sheath, the utility model constructs the anti -tension frame through metal thread engagement, and sealing washer blocks axial invasion, and elastic clamping eliminates radial gap, and the persistent sealing of connecting point is realized, and the anti -tension reinforcement and non -destructive dismounting are strengthened, and the leakage and fracture defects of outdoor wire joint are radically cured.

Description

Technical Field

[0001] This utility model relates to the field of wireless early warning broadcasting technology, and in particular to a wireless early warning broadcasting device with a protective structure. Background Technology

[0002] ① Currently, the connection points of outdoor early warning broadcasting equipment generally rely on electrical tape for sealing. This process has fundamental flaws during construction: the tape layer cannot adhere tightly to the irregular surface of the wire, and tiny gaps or air bubbles inevitably exist at the overlapping points. Under outdoor temperature variations, the shrinkage rate of the tape substrate is much higher than that of the wire insulation layer, gradually peeling off and forming rainwater penetration channels; the tape adhesive hardens and powders after long-term exposure, completely losing its adhesive and sealing properties. More seriously, the tape itself is only a polymer film material with almost zero tensile strength. When the equipment is hung high on supports such as utility poles, the weight of the wire itself continuously pulls down on the connection points, coupled with the periodic swaying load caused by wind vibration, causing the tape layer to be repeatedly torn like thin paper, eventually leading to the entire wrapping layer cracking and loosening. At this time, the exposed metal kinks are not only directly exposed to rainwater erosion, but also prone to fatigue fracture due to stress concentration, causing sudden power outages. These structural defects make conventional tape sealing completely unsuitable for the stringent reliability requirements of outdoor early warning equipment.

[0003] ② To address the issue of tape sealing failure, the industry has attempted a technological upgrade using a snap-fit ​​protective cover structure. This structure consists of a cover and a base, injection-molded from rigid engineering plastics (such as nylon or polycarbonate). An annular groove is pre-embedded inside the cover to accommodate a rubber sealing ring, while the base has mounting holes for fixing to an equipment bracket. During installation, the wire connection point is first placed in the central area of ​​the base, and then the cover is pressed vertically down, causing the sidewall latching teeth to engage and lock with the grooves on the edge of the base. The design intent is to create a physical barrier by fully enclosing the base with the cover, while the locking force of the latches compresses the sealing ring, causing it to expand radially. This aims to fill the annular gap between the outer sheath of the wire and the wire insertion hole in the cover, thereby preventing liquid water and dust particles from intruding into the internal cavity. This solution significantly improves the physical coverage integrity at the interface compared to tape wrapping.

[0004] ③ However, snap-on protective covers reveal more complex systemic defects in actual outdoor service environments, with the core contradiction being the dual inadequacy of structural strength and sealing durability. In terms of tensile strength, the protective cover relies on the elastic deformation of the plastic clips for locking, but nylon / polycarbonate materials become brittle under UV aging and temperature cycling. When the conductor is subjected to continuous self-weight pulling or strong wind vibration loads, stress is transmitted through the rigid shell of the cover to the clip engagement point, causing stress concentration cracks at the root of the clip teeth. After months of cyclic vibration, the plastic clips completely break and disintegrate due to cumulative fatigue, causing the entire protective cover to detach from the base. At this point, the torn fragments of the protective cover may snag on nearby cables, applying catastrophic secondary tearing forces to the vulnerable joints. In terms of sealing durability, the compression and rebound performance of rubber sealing rings faces serious challenges: the rubber is overcompressed when the cover is locked in place (usually exceeding its elastic deformation limit), and secondary compression during disassembly and maintenance causes irreversible slippage of molecular chains, resulting in permanent residual deformation; at the same time, outdoor ozone, ultraviolet radiation, and high and low temperature cycles jointly catalyze the hardening and cracking of the rubber. The direct result is that the crushed and deformed sealing ring cannot effectively rebound to fill the ellipticity tolerance or surface texture of the outer sheath of the conductor, and rainwater seeps in along the gaps at a rate that even exceeds that of the tape sealing period. More fatally, a new sealing ring must be replaced every time the cover is disassembled for maintenance to maintain a barely effective seal, and the frequent maintenance costs far exceed the equipment operation and maintenance budget. These inherent defects prove that the snap-fit ​​protective cover is merely a failed product of the compromise between sealing requirements and tensile strength requirements. Utility Model Content

[0005] The purpose of this invention is to provide a wireless early warning broadcasting device with a protective structure, which solves the dual defects of insufficient tensile strength of the conductor and short sealing life in the prior art.

[0006] To achieve the above objectives, this utility model provides a wireless early warning broadcasting device with a protective structure, including a connecting screw cylinder. An insulating metal clip is fixedly installed inside the connecting screw cylinder, and a wire is clamped and installed inside the insulating metal clip. Two sets of protective screw cylinders are respectively installed on the outside of the connecting screw cylinder by threads. A sealing gasket is provided at the connection between the protective screw cylinder and the connecting screw cylinder. A plug is fixedly installed at the end of the protective screw cylinder away from the connecting screw cylinder. An outer screw clamp is fixedly installed on the outside of the protective screw cylinder adjacent to the plug, and a locking screw is provided on the outside of the outer screw clamp.

[0007] The wire is fixedly installed on one side of the wireless sound unit and connected to the wireless sound unit. Gaskets are fixedly installed on both sides of the wireless sound unit away from the wire.

[0008] The gasket and the wireless sound unit are connected to form a clamping screw hole, and a clamping screw rod that passes through the clamping plate is installed in the clamping screw hole by thread.

[0009] A connecting plate is fixedly installed on the side of the clamping plate away from the clamping screw. The connecting plate has a connecting hole for bolts or steel wires to pass through, so that the whole is fixed to the support device.

[0010] The clamping plate and the connecting plate are directly inclined with a bracing plate, and the bracing plate, the clamping plate and the connecting plate are triangular in shape, which is used to improve the bending strength of the structure.

[0011] The wireless sound unit is installed by engaging the outer wall thread with the inner thread of the outer expansion cylinder, so that the wireless sound unit is inserted into the outer expansion cylinder.

[0012] This utility model discloses a wireless early warning broadcasting device with a protective structure. The core technology lies in the innovative design of the protective structure at the wire connection point. Specifically, an insulating metal clip fixed inside the connecting screw cylinder clamps the exposed conductor of the wire, ensuring reliable electrical connection and isolating the risk of metal short circuits. Two sets of protective screw cylinders are screwed onto the outer threads at both ends of the connecting screw cylinder, with a sealing gasket at the engagement point. When the protective screw cylinder is tightened, it compresses the sealing gasket to form an axial sealing interface, preventing external liquids and dust from entering through the thread gaps. A plug cylinder is fixed at the front end of the protective screw cylinder, and an outer screw clamp is coaxially fixed nearby. A locking screw cylinder is mounted on the outside of the outer screw clamp. The outer sheath of the wire is inserted into the plug cylinder and extends into the annular space between the plug cylinder and the outer screw clamp. When the locking screw cylinder is tightened, its inner conical surface drives the outer screw clamp to contract radially, allowing the outer screw clamp to elastically clamp the surface of the outer sheath of the wire.

[0013] This structure achieves the following core functions: the metal threads engage to form a rigid, tensile-resistant integral with the protective and connecting screw cylinders, dispersing external forces through the protective screw cylinder shell; the sealing gasket deforms under pressure, blocking axial intrusion channels; and the outer screw clamp contracts to adaptively tighten the conductor's outer sheath, eliminating radial gaps. These three elements work together to ensure a complete seal at the connection point, isolating it from external corrosion. External loads are borne by the conductor sheath and not transmitted to the conductor connection. Furthermore, the locking screw cylinder can be rotated in reverse to release the clamp without damage. This structure eliminates the industry-wide problem of sealing failure and pull-out breakage at outdoor conductor connection points. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0016] Figure 2 This is a rear view structural schematic diagram of an embodiment of the present utility model.

[0017] Figure 3 This is a schematic diagram of the connection structure of the connecting screw cylinder according to an embodiment of the present utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the clamping plate in an embodiment of this utility model.

[0019] In the diagram: 101, connecting screw; 102, insulating metal clip; 103, wire; 104, protective screw; 105, sealing gasket; 106, insert; 107, external screw clip; 108, locking screw; 109, wireless sound unit; 110, gasket; 111, clamping screw hole; 112, clamping plate; 113, clamping screw; 114, connecting plate; 115, connecting hole; 116, diagonal brace; 117, outer expansion cylinder. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] Please see Figures 1-4 .

[0022] This utility model provides a wireless early warning broadcasting device with a protective structure. The device includes a connecting screw cylinder 101, inside which an insulating metal clip 102 is fixedly installed, and a wire 103 is clamped and installed. Two sets of protective screw cylinders 104 are respectively threadedly installed on the outside of the connecting screw cylinder 101, and a sealing gasket 105 is provided at the connection between the protective screw cylinder 104 and the connecting screw cylinder 101. A plug cylinder 106 is fixedly installed at the end of the protective screw cylinder 104 away from the connecting screw cylinder 101. An outer screw clamp 107 is fixedly installed on the outside of the protective screw cylinder 104 adjacent to the plug cylinder 106, and a locking screw cylinder 108 is provided on the outside of the outer screw clamp 107. The wire... 103 is fixedly connected to one side of the wireless sound unit 109 and electrically connected to the unit; gaskets 110 are fixedly installed on both sides of the wireless sound unit 109 away from the wire 103, and the gaskets 110 and the wireless sound unit 109 pass through to form a clamping screw hole 111; a clamping screw 113 is installed in the clamping screw hole 111 by thread, and the clamping screw 113 passes through the clamping plate 112 and is fixed; a connecting plate 114 is fixed on the side of the clamping plate 112 away from the clamping screw 113, and a connecting hole 115 is opened on the connecting plate 114; an inclined brace 116 is inclined between the clamping plate 112 and the connecting plate 114, and the inclined brace 116, the clamping plate 112, and the connecting plate 114 form a triangle. The wireless speaker unit 109 is installed by its outer wall thread engaging with the inner thread of the outer expansion cylinder 117, allowing the wireless speaker unit 109 to be inserted into the outer expansion cylinder 117. In this embodiment, the connection point between the speaker's own wire 103 and the external wire 103 is clamped and fixed by the insulating metal clip 102 inside the connecting screw cylinder 101, ensuring electrical connection stability and insulation protection. Two sets of protective screw cylinders 104 are respectively screwed onto the outside of the connecting screw cylinder 101 and compress the sealing gasket 105 to form a sealed interface, preventing external contaminants from entering. The speaker's own wire 103 and the external wire... The outer sheath of 103 is inserted into the gap between the insert 106 and the outer screw clamp 107 of the corresponding protective screw 104. When the locking screw 108 is tightened, it drives the outer screw clamp 107 to retract radially, clamping the outer sheath of the wire 103 and providing anti-tension protection. The wireless sound unit 109 is fixed by the clamping screw 112 through the clamping screw 113 through the clamping plate 112 and screwed into the clamping screw hole 111. The connecting plate 114 of the clamping plate 112 is connected to the external support through the connecting hole 115. The diagonal brace 116 enhances the bending strength of the section from the clamping plate 112 to the connecting plate 114. The outer expansion cylinder 117 encloses the wireless sound unit 109 to provide mechanical protection. When the external wire 103 provides power, the wireless sound unit 109 receives the wireless warning signal and broadcasts sound.

[0023] Working principle: First, the wireless early warning broadcasting device's own wire 103 is connected to the external wire 103. The connection point is clamped and fixed by the insulating metal clip 102 inside the connecting screw 101, ensuring the stability and reliability of the electrical connection. The insulating metal clip 102 also provides insulation protection to avoid short circuits or electrical interference. The protective screw 104 is threaded onto the outside of the connecting screw 101. The sealing gasket 105 at the connection is compressed during tightening, forming a tight sealing interface, effectively preventing moisture, dust, or external foreign objects from entering, ensuring the dryness and cleanliness of the internal connection. At the same time, an insert 106 is fixed to the end of the protective screw 104 away from the connecting screw 101. An external screw clamp 107 is fixedly installed on the outside of the insert 106. During installation, the outer sheath of the insert 103 and the external wire 103 are respectively inserted into the gap between the insert 106 and the external screw clamp 107. Then, the locking screw 108 on the outside of the external screw clamp 107 is tightened. The tightening action of the locking screw 108 drives the external screw clamp 107 to tighten inward, tightly clamping the outer sheath of the wire 103, ensuring the mechanical firmness and tensile strength of the connection, preventing the wire 103 from breaking or falling off due to vibration or pulling, and improving the durability of the device in outdoor environments. After the wires 103 are connected and fixed, the other end of the insert 103 is connected to the wireless sound unit 109 to transmit power and enable the wireless sound unit 109 to operate normally. The wireless sound unit 109 has washers 110 fixed on both sides. The washers 110 and the wireless sound unit 109 pass through to form clamping screw holes 111. A clamping screw 113 is installed in the internal thread of the clamping screw hole 111. The clamping screw 113 passes through the clamping plate 112 and is tightened to firmly fix the clamping plate 112 on the wireless sound unit 109, providing a uniform clamping force to prevent the unit from shifting or vibrating. A connecting plate 114 is fixed on the side of the clamping plate 112 away from the clamping screw 113. The connecting plate 114 has a connecting hole 115, which can be used for bolts or steel wires to pass through, firmly fixing the entire device to an external support device such as a pole or wall, ensuring the stability of the device in the installation position. The clamping plate 112 and the connecting plate 114 are connected to the wireless sound unit 109. The inclined bracing plates 116 set between 14 form a triangular support structure, which significantly enhances the bending strength and overall rigidity, resists the influence of external forces such as wind load and mechanical stress, and improves the impact resistance of the equipment. During the operation of the wireless early warning broadcast, the power input by the external wire 103 is stably conducted to its own wire 103 through the connection structure, and then input to the wireless sound unit 109 to provide it with the power required for operation. The wireless sound unit 109 receives the early warning information signal transmitted wirelessly and emits an early warning sound accordingly. The wireless sound unit 109 is installed inside the outer expansion cylinder 117 through the outer wall thread fit, and the unit is inserted into the outer expansion cylinder 117 to form a protective package, which enhances the unit's impact resistance and dustproof sealing ability.Throughout the collaborative workflow, the high sealing and mechanical robustness of the connection structure ensure that the power supply connection remains uninterrupted and unexposed under severe weather or vibration conditions, preventing malfunctions. This ensures that the wireless early warning broadcasting equipment can continuously and reliably perform its early warning broadcasting function and provide timely and efficient disaster early warning signals.

[0024] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A wireless early warning broadcasting device with a protective structure, comprising a connecting screw (101), characterized in that... An insulating metal clip (102) is fixedly installed inside the connecting screw cylinder (101). A wire (103) is clamped and installed inside the insulating metal clip (102). Two sets of protective screw cylinders (104) are respectively installed on the outside of the connecting screw cylinder (101) by threads. A sealing gasket (105) is provided at the connection between the protective screw cylinder (104) and the connecting screw cylinder (101). A plug cylinder (106) is fixedly installed at the end of the protective screw cylinder (104) away from the connecting screw cylinder (101). An outer screw clamp (107) is fixedly installed on the outside of the protective screw cylinder (104) adjacent to the plug cylinder (106). A locking screw cylinder (108) is provided on the outside of the outer screw clamp (107).

2. The wireless early warning broadcasting device with a protective structure as described in claim 1, characterized in that: The wire (103) is fixedly installed on one side of the wireless sound unit (109) and electrically connected to the wireless sound unit (109). Gaskets (110) are fixedly installed on both sides of the wireless sound unit (109) away from the wire (103).

3. The wireless early warning broadcasting device with a protective structure as described in claim 2, characterized in that: The gasket (110) and the wireless sound unit (109) are connected to form a clamping screw hole (111), and a clamping screw (113) that passes through the clamping plate (112) is installed in the clamping screw hole (111) by thread.

4. A wireless early warning broadcasting device with a protective structure as described in claim 3, characterized in that: A connecting plate (114) is fixedly installed on the side of the clamping plate (112) away from the clamping screw (113). A connecting hole (115) is provided on the connecting plate (114). The connecting hole (115) is used for bolts or steel wires to pass through, so that the whole is fixed to the support device.

5. A wireless early warning broadcasting device with a protective structure as described in claim 4, characterized in that: The clamping plate (112) and the connecting plate (114) are directly inclined with a bracing plate (116), and the bracing plate (116) is triangular with the clamping plate (112) and the connecting plate (114) to improve the bending strength of the structure.

6. A wireless early warning broadcasting device with a protective structure as described in claim 5, characterized in that: The wireless sound unit (109) is installed by engaging the outer wall thread with the inner thread of the outer expansion cylinder (117), so that the wireless sound unit (109) is inserted into the outer expansion cylinder (117).

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