Multifunctional electric power construction electric power fireproof protection device

Abstract

The utility model relates to power fireproof protection device technical field discloses multifunctional power construction power fireproof protection device, aims at solving the problem of existing technology only relying on single circuit breaker protection, and there is the risk of protection failure under the extreme condition such as fire. The device includes the protective shell, the power-off mechanism and the wire breaking mechanism set in the protective shell. The wire breaking mechanism includes the fixed block, the rotatable rotating ring, the link rod, the blade and the limiting assembly containing the handle. By operating the handle to drive the limiting assembly, the rotating ring, the link rod and the blade can be linked to forcibly cut off the external wire in a mechanical way. The device also integrates a fire extinguisher that can be automatically started in a fire and a warning bell that can send an alarm. The utility model adds a manual mechanical wire breaking mechanism, forming double protection with the automatic circuit breaker, solving the hidden danger of single electrical protection mode failure, ensuring reliable cut-off of the power supply in emergency, and being safe.

Description

Technical Field

[0001] This utility model relates to the technical field of power fire protection devices, and in particular to a multifunctional power construction power fire protection device. Background Technology

[0002] In temporary power supply situations such as power construction, protection boxes equipped with circuit breakers are typically used for circuit safety management. Circuit breakers can automatically trip when electrical faults such as line overload or short circuits are detected, thereby cutting off the power supply and playing a crucial role in electrical protection.

[0003] However, in extreme emergencies such as fires, this single protection method presents serious safety hazards. On the one hand, the high temperatures or impacts of a fire can cause the tripping mechanism inside the circuit breaker to malfunction or the contacts to weld together, preventing it from tripping properly. On the other hand, in the chaos of a rescue scene, there is a risk that a tripped circuit breaker could be accidentally reactivated by unsuspecting personnel, causing the dangerous circuit to be reconnected, resulting in secondary injuries to on-site personnel or exacerbating the fire. Ultimately, existing technology relies solely on resettable automatic electrical protection and lacks a physical means of forcibly, thoroughly, and irreversibly cutting off power in emergency situations, leading to insufficient reliability of its safety protection.

[0004] Therefore, this utility model proposes a multifunctional power construction fire protection device to address the shortcomings of existing technologies. Utility Model Content

[0005] In view of the problem that the single electrical protection method of the existing multifunctional power construction fire protection device has the risk of failure in extreme situations such as fire, and cannot guarantee that the power supply can be completely cut off, the present invention aims to provide a multifunctional power construction fire protection device with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a multifunctional power construction fire protection device, including: a protective shell, and a power-off mechanism installed inside the protective shell, the power-off mechanism including a circuit breaker; and a wire-breaking mechanism installed inside the protective shell.

[0007] The wire breaking mechanism includes a fixed block, a rotating ring, a connecting rod, a blade, and a limiting assembly including a handle.

[0008] Furthermore, the rotating ring is rotatably disposed on the fixed block, the connecting rod is hinged to the rotating ring to drive the blade, and the limiting assembly is used to drive the rotating ring to rotate via the handle.

[0009] Preferably, the limiting component further includes a second limiting post disposed on the fixed block, and a guide groove formed on the rotating ring and slidably engaged with the second limiting post.

[0010] Preferably, the limiting component further includes a limiting post, and the blade rotates around the axis of the limiting post.

[0011] Preferably, the multifunctional power construction fire protection device also includes a fire extinguisher and an alarm bell installed inside the protective casing.

[0012] Preferably, the fire extinguisher includes a top temperature controller for detecting ambient temperature to trigger its operation.

[0013] Preferably, the power-off mechanism further includes a mounting rail and a quick-release assembly, wherein the circuit breaker is detachably mounted on the mounting rail, and the quick-release assembly is used to fix the mounting rail to the inner wall of the protective housing.

[0014] Preferably, the quick-release assembly includes a bolt that passes through the protective housing and screws into a threaded hole on the side of the mounting rail; the circuit breaker is fixed to the mounting rail by screws pressing against it.

[0015] Preferably, the protective shell is also provided with a vent.

[0016] This utility model has the following beneficial effects: 1. This utility model solves the safety hazard of existing technologies that rely solely on a single circuit breaker for electrical protection, which may fail or be accidentally reset in extreme situations such as fires. It achieves a reliable effect of dual power-off protection, ensuring a complete power cut-off and greatly improving the electrical safety of construction sites.

[0017] 2. This utility model solves the problems of existing safety devices being single-function, scattered, unable to form a linkage response, and inconvenient for rapid deployment and management at temporary construction sites by integrating functional components such as power-off mechanism, wire-cutting mechanism, fire extinguisher, and alarm bell into a unified protective shell. It achieves the technical effect of highly integrated functions, rapid response, and coordinated action, realizing automated preliminary handling and warning of fire.

[0018] 3. This utility model uses an installation structure that combines an installation rail with quick-release components to fix the circuit breaker, which solves the problems of complex installation and inconvenient replacement and maintenance of the core components inside the protection device in the prior art. It achieves the technical effect of easy and quick installation and maintenance, and improves the efficiency of deployment and maintenance of the device at the power construction site. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the multifunctional power construction fire protection device proposed in this utility model; Figure 2This is a schematic diagram of the alarm bell of the multifunctional power construction fire protection device proposed in this utility model; Figure 3 This is a schematic diagram of the structure of the fire extinguisher in the multifunctional power construction fire protection device proposed in this utility model; Figure 4 This is a schematic diagram of the circuit breaker structure of the multifunctional power construction fire protection device proposed in this utility model; Figure 5 This is a schematic diagram of the rotating ring structure of the multifunctional power construction fire protection device proposed in this utility model; Figure 6 This is a schematic diagram of the handle of the multifunctional power construction fire protection device proposed in this utility model.

[0020] Legend: 1. Protective casing; 2. Fire extinguisher; 3. Alarm bell; 4. Vent; 5. Wire disconnection mechanism; 51. Fixing block; 52. Rotating ring; 53. Connecting rod; 54. Blade; 55. Limiting assembly; 551. Limiting post one; 552. Limiting post two; 553. Guide groove; 554. Handle; 6. Power disconnection mechanism; 61. Mounting rail; 62. Circuit breaker; 63. Quick release assembly; 631. Bolt; 632. Threaded hole; 633. Screw. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] Example: Please refer to Figures 1 to 6 This utility model provides a multifunctional electrical construction fire protection device, which aims to solve the problems of insufficient reliability and lack of integrated safety protection in the existing single electrical protection method.

[0023] like Figure 1As shown, this multifunctional power construction fire protection device includes a protective shell 1, and a power-off mechanism 6, a wire-breaking mechanism 5, a fire extinguisher 2, and an alarm bell 3 installed inside the protective shell 1. The protective shell 1 provides the installation foundation and airtight protection for the entire device, and also has a vent 4. The power-off mechanism 6 is used to realize automatic power-off protection in case of line faults, the wire-breaking mechanism 5 is used to physically cut off the external wires through manual operation in emergency situations, the fire extinguisher 2 is used to extinguish the initial fire, the alarm bell 3 is used to sound an alarm, and the vent 4 is used to exhaust internal smoke.

[0024] To solve the above-mentioned technical problems, the core of the technical solution of this embodiment is that the multifunctional power construction power fire protection device also includes a wire breaking mechanism 5, and a specific structural cooperation and connection relationship is formed between the wire breaking mechanism 5 and the protective shell 1.

[0025] Please refer to the following carefully. Figure 1 , Figure 4 , Figure 5 and Figure 6 The core structure will be described in detail below: The wire breaking mechanism 5 includes a fixed block 51, a rotating ring 52 rotatably mounted on the fixed block 51, a connecting rod 53 hinged to the rotating ring 52, a blade 54 driven by the connecting rod 53, and a limiting assembly 55 for driving the rotating ring 52 to rotate. The fixed block 51 is fixedly connected to the inner wall of the protective shell 1. The limiting assembly 55 includes a handle 554 for operation, a first limiting post 551 and a second limiting post 552 mounted on the fixed block 51, and a guide for cooperating with the second limiting post 552 on the rotating ring 52. In the assembled state, the guide groove 553 of the rotating ring 52 and the limiting post 552 of the fixed block 51 form a sliding engagement, and the blade 54 rotates around the axis of the limiting post 551. This linkage structure, consisting of the handle 554, the limiting component 55, the rotating ring 52, the connecting rod 53 and the blade 54, is used to physically cut the external wires through internal mechanical linkage under the intervention of human external force, thereby ensuring that the power supply can be cut off reliably and completely in a purely mechanical manner in an emergency.

[0026] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, in order to achieve precise mechanical linkage and guidance, the limiting component 55 is specifically constructed as follows: a second limiting post 552 and a first limiting post 551 are fixedly provided on the fixed block 51, a guide groove 553 is correspondingly opened on the rotating ring 52, the guide groove 553 is slidably engaged with the second limiting post 552, and the blade 54 is rotatably connected to the first limiting post 551.

[0027] As another preferred embodiment, in order to integrate automatic fire extinguishing and audible alarm functions, a fire extinguisher 2 and an alarm bell 3 are also fixedly installed inside the protective shell 1. The top of the fire extinguisher 2 is equipped with a top temperature controller for detecting the ambient temperature to trigger the action of the fire extinguisher 2.

[0028] As a preferred installation structure, in order to achieve quick installation and removal of the circuit breaker 62, the power-off mechanism 6 also includes a mounting rail 61 and a quick-release assembly 63. The mounting rail 61 is detachably fixed to the inner wall of the protective shell 1 through the quick-release assembly 63. The circuit breaker 62 is mounted and fixed on the mounting rail 61. Specifically, the quick-release assembly 63 includes a bolt 631 and a threaded hole 632 opened on the side of the mounting rail 61. The bolt 631 passes through the protective shell 1 and is screwed into the threaded hole 632. A screw 633 is also provided on the top of the circuit breaker 62. After the screw 633 is tightened, it presses against the mounting rail 61 and fastens the circuit breaker 62 to the mounting rail 61.

[0029] The working principle is as follows: Before installation, the circuit breaker 62 is first placed on the outside of the mounting rail 61, and the screw 633 on the top of the circuit breaker 62 is tightened. The screw 633 presses against the top of the mounting rail 61, thus fixing the circuit breaker 62 on the mounting rail 61. Then, the mounting rail 61 is aligned with the mounting hole on the inner wall of the protective shell 1, and the bolt 631 is screwed into the threaded hole 632 on the side of the mounting rail 61. The circuit breaker 62 is quickly installed by using the quick-release assembly 63. Then, the handle 554 is lifted, and the external wire is connected to the circuit breaker 62 inside the protective shell 1. After the power is turned on, the power-off mechanism 6 enters the normal working state. When a fire occurs at the power construction site, the circuit breaker 62 will detect the line fault and automatically cut off the power. At the same time, the fire extinguisher 2 will detect the fire through the temperature controller on its top and immediately release extinguishing gas into the protective shell 1 to prevent the fire from spreading. The generated smoke will be discharged through the vent 4. After the alarm bell 3 on the back of the protective shell 1 sounds, the operator will arrive at the fire scene and press down the handle 554. Under the intervention of manual force, the rotation of the handle 554 will drive the rotating ring 52 to rotate along the axis of the fixed block 51. Under the sliding engagement of the second limit post 552 on the fixed block 51 and the guide groove 553 on the rotating ring 52, the limit component 55 will guide the connecting rod 53 on the rotating ring 52 to swing. The blade 54 will rotate around the axis of the first limit post 551 under the drive of the connecting rod 53. Finally, the wire cutting mechanism 5 will drive the blade 54 to complete the closing action, thereby cutting off the external wire and realizing the external mechanical power cut-off.

Claims

1. A multifunctional electrical fire protection device for power construction, comprising: Protective shell (1); as well as The power-off mechanism (6) is provided inside the protective housing (1), and the power-off mechanism (6) includes a circuit breaker (62). Its features are, The device also includes a wire breaking mechanism (5) disposed inside the protective housing (1). The wire breaking mechanism (5) includes a fixed block (51), a rotating ring (52) rotatably disposed on the fixed block (51), a connecting rod (53) hinged to the rotating ring (52), a blade (54) driven by the connecting rod (53), and a limiting component (55) for driving the rotating ring (52) to rotate. The limiting component (55) includes a handle (554) for human operation.

2. The multifunctional power construction fire protection device according to claim 1, characterized in that, The limiting component (55) further includes a second limiting post (552) disposed on the fixed block (51) and a guide groove (553) opened on the rotating ring (52) and slidably engaged with the second limiting post (552).

3. The multifunctional power construction fire protection device according to claim 2, characterized in that, The limiting component (55) further includes a limiting post (551), and the blade (54) rotates about the axis of the limiting post (551).

4. The multifunctional power construction fire protection device according to claim 1, characterized in that, The device also includes a fire extinguisher (2) and an alarm bell (3) disposed within the protective housing (1).

5. The multifunctional power construction fire protection device according to claim 4, characterized in that, The fire extinguisher (2) includes a top temperature controller for detecting ambient temperature to trigger the operation of the fire extinguisher (2).

6. The multifunctional power construction fire protection device according to claim 1, characterized in that, The power-off mechanism (6) further includes a mounting rail (61) and a quick-release assembly (63) for fixing the mounting rail (61) to the inner wall of the protective housing (1); the circuit breaker (62) is detachably mounted on the mounting rail (61).

7. The multifunctional power construction fire protection device according to claim 6, characterized in that, The quick-release assembly (63) includes a bolt (631) that passes through the protective housing (1) and screws into the threaded hole (632) on the side of the mounting rail (61); the circuit breaker (62) is fixed to the mounting rail (61) by a screw (633) pressing against the mounting rail (61).

8. The multifunctional power construction fire protection device according to claim 1, characterized in that, The protective shell (1) is also provided with a vent (4).

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