Weak current line safety protection device

Abstract

The utility model discloses a weak current line safety protection device, which relates to the technical field of circuit protection, and comprises an air switch, the front end face of the air switch is provided with an insertion groove, the insertion groove is internally provided with a quick release mechanism, and the quick release mechanism is internally provided with a heat dissipation mechanism. According to the utility model, if a fault occurs, the buzzer and the indicating lamp can be activated through the processor to remind a worker to process, the worker twists the insulating twisting block to drive the rope to contract through the connecting rod, the rope makes the limiting block and the limiting groove contact and limit, and then the air switch and the casing can be quickly disassembled. And on the contrary, when installation is carried out, the insulation twisting block is twisted to enable the limiting block to contract, the machine shell is placed into the insertion groove, and then the insulation twisting block is loosened, so that a worker can use the machine conveniently, the situation that disassembly and assembly are inconvenient in an emergency situation is avoided, and potential risks can be relieved at the fastest speed.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit protection, in particular to a weak current line safety protection device. Background Art

[0002] Weak current generally refers to DC circuits or audio, video lines, network lines, and telephone lines. The AC voltage is generally within 36V. Household appliances such as telephones, computers, television signal inputs (cable TV lines), audio equipment (output lines), etc. are all weak current electrical equipment.

[0003] An existing patent (publication number: CN 220492636U) discloses a weak current line safety protection device, which monitors the weak current line through the coordinated use of a current transformer and a measuring meter, and transmits the monitored data to a processor for analysis. When a weak current line fails, the air switch will cut off the weak current line in time to avoid damage to external equipment, and the processor will analyze the results in time, turn off the indicator light, and sound an alarm with a buzzer. During this process, the heat dissipation component will collect the heat generated by the components in the casing and transmit it to the outside for dissipation, thereby avoiding heat aging of the components in the casing and even causing fire accidents, thereby increasing the service life of the device.

[0004] However, the above technical solution still has certain defects. If the weak current line safety protection device fails, a fire accident may occur if the staff does not dismantle it in time. However, the device is fixed by multiple sets of fastening bolts, which is not convenient for disassembly and assembly in an emergency situation, and the best disassembly time may be missed, causing an accident. Therefore, a weak current line safety protection device is proposed. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a weak current line safety protection device to solve the technical problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical solutions: a weak current line safety protection device, comprising an air switch, an insertion slot is provided on the front end surface of the air switch, a quick release mechanism is installed inside the insertion slot, and a heat dissipation mechanism is installed inside the quick release mechanism;

[0007] The quick-release mechanism includes a casing installed inside the insertion slot, an insulating twist block is installed on the front end surface of the casing, a connecting rod is fixed to one end of the insulating twist block, a fixed shaft is provided at the end of the connecting rod away from the insulating twist block, a wire rope is fixed to the outer wall of the connecting rod, a limiting block is fixed to the other end of the wire rope, a reset spring is fixed to the end of the limiting block close to the wire rope, a frame is fixed to the other end of the reset spring, the end of the limiting block away from the wire rope is arranged inside the limiting slot, a square groove is opened on the surface of the casing, a processor is installed inside the square groove, a battery installed inside the square groove is provided on one side of the processor, a buzzer installed inside the square groove is provided above the battery, an indicator light installed inside the square groove is provided above the buzzer, and an observation window is fixed on the front end surface of the casing.

[0008] As a preferred technical solution of a weak current line safety protection device of the utility model, circular holes are provided at both upper and lower ends of the casing, and the size of the circular holes matches the size of the limit blocks.

[0009] As a preferred technical solution of a weak current line safety protection device of the utility model, the wire rope is symmetrically arranged according to the transverse center axis of the casing, and the insulating torsion block is symmetrically arranged according to the longitudinal center axis of the casing.

[0010] As a preferred technical solution of a weak current line safety protection device of the utility model, an embedding groove is provided at the top of the casing, and a radiator in a heat dissipation mechanism is installed inside the embedding groove, and a temperature sensor is provided inside the radiator.

[0011] As a preferred technical solution of a weak current line safety protection device of the utility model, a current transformer is provided on the outer wall of the wire connected to one side of the air switch, and the current transformer is connected to a measuring meter through a transmission line.

[0012] As a preferred technical solution of a weak current line safety protection device of the utility model, the bottom end of the measuring meter is fixed by a supporting block arranged at the top end of the air switch.

[0013] As a preferred technical solution of a weak current line safety protection device of the utility model, the processor is provided with a power switch, a circuit board and a single-chip microcomputer, and the power switch is connected to a measuring meter and a current transformer in sequence through wires, the measuring meter is fixed on the top of the air switch, and the current transformer is installed on an external weak current line, the indicator light, the buzzer and the processor are all electrically connected to the battery, and the indicator light and the buzzer are both electrically connected to the processor.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] 1. The utility model activates the buzzer and the indicator light through the processor when a fault occurs, so as to remind the staff to handle the fault. The staff twists the insulating twist block to drive the wire rope to shrink through the connecting rod, and the wire rope contacts the limit block with the limit groove to limit the position. Then, the air switch and the casing can be quickly separated to avoid accidents. On the contrary, when installing, the insulating twist block is first twisted to shrink the limit block, and after the casing is inserted into the insertion groove, the insulating twist block can be loosened, so that it is convenient for the staff to use and avoids the inconvenience of disassembly and assembly in an emergency, so that the potential danger can be eliminated at the fastest speed.

[0016] 2. When a fault occurs, the heat inside the casing will increase rapidly. At this time, the temperature sensor will be used for sensing. When the temperature reaches a specified point, the radiator will be triggered to operate, thereby dissipating the heat inside the casing to avoid accidents caused by excessive heat inside. The current transformer and the measuring meter are used for detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a partial cross-sectional view of the utility model;

[0019] Figure 3 This is a schematic diagram of the insulating twist block structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the fixed shaft structure of the utility model.

[0021] In the figure: 100, air switch; 200, quick release mechanism; 300, heat dissipation mechanism;

[0022] 110, current transformer; 120, measuring meter; 130, insertion slot; 131, limit slot;

[0023] 210, housing; 220, square slot; 221, processor; 222, battery; 223, indicator light; 224, buzzer; 230, observation window; 240, insulating twist block; 241, connecting rod; 242, fixed shaft; 250, cord; 260, limit block; 270, return spring; 280, frame;

[0024] 310. Radiator. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0026] The following describes an embodiment of the utility model based on its overall structure.

[0027] A weak current line safety protection device, such as Figures 1 to 4 As shown, it includes an air switch 100, the front end surface of the air switch 100 is provided with an insertion slot 130, a quick release mechanism 200 is installed inside the insertion slot 130, and a heat dissipation mechanism 300 is installed inside the quick release mechanism 200;

[0028] The quick release mechanism 200 includes a housing 210 installed inside the insertion slot 130, an insulating torsion block 240 is installed on the front end surface of the housing 210, a connecting rod 241 is fixed to one end of the insulating torsion block 240, a fixed shaft 242 is provided at the end of the connecting rod 241 away from the insulating torsion block 240, a wire rope 250 is fixed to the outer wall of the connecting rod 241, a limiting block 260 is fixed to the other end of the wire rope 250, a return spring 270 is fixed to the end of the limiting block 260 close to the wire rope 250, and a return spring 270 is fixed to the other end of the return spring 270. The frame 280, the end of the limit block 260 away from the rope is arranged inside the limit groove 131, the surface of the casing 210 is provided with a square groove 220, a processor 221 is installed inside the square groove 220, a battery 222 installed inside the square groove 220 is provided on one side of the processor 221, a buzzer 224 installed inside the square groove 220 is provided above the battery 222, an indicator light 223 installed inside the square groove 220 is provided above the buzzer 224, and an observation window 230 is fixed on the front end surface of the casing 210.

[0029] If a fault occurs, the buzzer 224 and the indicator light 223 will be activated by the processor 221 to remind the staff to handle it. The staff twists the insulating twist block 240 to drive the rope 250 to shrink through the connecting rod 241. The rope 250 contacts the limit block 260 with the limit groove 131 to limit the position. Then, the air switch 100 and the casing 210 can be quickly separated to avoid accidents. On the contrary, when installing, first twist the insulating twist block 240 to shrink the limit block 260. After the casing 210 is inserted into the insertion slot 130, the insulating twist block 240 can be loosened, which is convenient for the staff to use and avoids the inconvenience of disassembly and assembly in an emergency, so that potential dangers can be eliminated at the fastest speed.

[0030] Please refer to Figures 2 to 4Circular holes are provided at both ends of the casing 210, and the size of the circular holes matches the size of the limit block 260. The rope 250 is symmetrically arranged according to the horizontal center axis of the casing 210, and the insulating torsion block 240 is symmetrically arranged according to the longitudinal center axis of the casing 210. The processor 221 is provided with a power switch, a circuit board and a single-chip microcomputer, and the power switch is connected to the measuring meter 120 and the current transformer 110 in sequence through wires. The measuring meter 120 is fixed on the top of the air switch 100, and the current transformer 110 is installed on the external wire. The indicator light 223, the buzzer 224 and the processor 221 are all electrically connected to the battery 222, and the indicator light 223 and the buzzer 224 are all electrically connected to the processor 221.

[0031] The circular hole groove is unique for the limit block 260, and data is transmitted through the processor 221, the measuring meter 120 and the current transformer 110. When a fault occurs, the processor 221 transmits a signal to the indicator light 223 and the buzzer 224 to remind the staff to handle it.

[0032] Please refer to Figures 1 to 3 A fitting groove is provided at the top of the casing 210, and a radiator 310 in the heat dissipation mechanism 300 is installed inside the fitting groove. A temperature sensor is provided inside the radiator 310. A current transformer 110 is provided on the outer wall of the wire connected to one side of the air switch 100. The current transformer 110 is connected to a measuring meter 120 through a transmission line. The bottom end of the measuring meter 120 is fixed by a supporting block provided at the top of the air switch 100.

[0033] When a fault occurs, the heat inside the casing 210 will increase rapidly. At this time, the temperature sensor will be used for sensing. When the temperature reaches a specified point, the radiator 310 will be triggered to operate, thereby dissipating the heat inside the casing 210 to avoid accidents caused by excessive heat inside. The current transformer 110 and the measuring meter 120 are used for detection.

[0034] When in use, if a fault occurs, the buzzer 224 and the indicator light 223 will be activated through the processor 221 to remind the staff to handle it. The staff twists the insulating twist block 240 to drive the wire rope 250 to shrink through the connecting rod 241. The wire rope 250 contacts the limit block 260 with the limit groove 131 to limit the position. Then, the air switch 100 and the housing 210 can be quickly separated to avoid accidents. On the contrary, when installing, first twist the insulating twist block 240 to shrink the limit block 260, put the housing 210 into the insertion groove 130, and then loosen the insulating twist block 240. This makes it convenient for the staff to use it and avoids the inconvenience of disassembly and assembly in emergency situations, so that potential dangers can be eliminated as quickly as possible; when a fault occurs, the heat inside the casing 210 will increase rapidly, and the temperature sensor will be used for sensing. When the temperature reaches a specified point, the radiator 310 will be triggered to operate, thereby discharging the heat inside the casing 210 to avoid accidents caused by excessive heat inside. The current transformer 110 and the measuring meter 120 are used for detection, and the parts not involved in the device are the same as the prior art or can be implemented using the prior art.

[0035] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A weak current line safety protection device, comprising an air switch (100), characterized in that: An insertion slot (130) is provided on the front end surface of the air switch (100), a quick release mechanism (200) is installed inside the insertion slot (130), and a heat dissipation mechanism (300) is installed inside the quick release mechanism (200); The quick-release mechanism (200) comprises a housing (210) installed inside the insertion slot (130), an insulating twist block (240) being installed on the front end surface inside the housing (210), a connecting rod (241) being fixed to one end of the insulating twist block (240), a fixed shaft (242) being provided at one end of the connecting rod (241) away from the insulating twist block (240), a wire rope (250) being fixed to the outer wall of the connecting rod (241), a limiting block (260) being fixed to the other end of the wire rope (250), a return spring (270) being fixed to one end of the limiting block (260) close to the wire rope (250), and the return spring (270) being fixed to the other end. A frame (280) is provided, wherein one end of the limit block (260) away from the wire rope is arranged inside the limit groove (131), a square groove (220) is provided on the surface of the housing (210), a processor (221) is installed inside the square groove (220), a battery (222) installed inside the square groove (220) is provided on one side of the processor (221), a buzzer (224) installed inside the square groove (220) is provided above the battery (222), an indicator light (223) installed inside the square groove (220) is provided above the buzzer (224), and an observation window (230) is fixed to the front end surface of the housing (210).

2. A weak current line safety protection device according to claim 1, characterized in that: Circular holes are provided at both upper and lower ends of the housing (210), and the size of the circular holes matches the size of the limiting block (260).

3. A weak current line safety protection device according to claim 1, characterized in that: The wire rope (250) is symmetrically arranged along the transverse center axis of the housing (210), and the insulating twist block (240) is symmetrically arranged along the longitudinal center axis of the housing (210).

4. A weak current line safety protection device according to claim 1, characterized in that: The top of the housing (210) is provided with an engagement groove, and a heat sink (310) in the heat dissipation mechanism (300) is installed inside the engagement groove, and a temperature sensor is provided inside the heat sink (310).

5. A weak current line safety protection device according to claim 1, characterized in that: A current transformer (110) is sleeved on the outer wall of a conductor connected to one side of the air switch (100), and the current transformer (110) is connected to a measuring meter (120) via a transmission line.

6. A weak current line safety protection device according to claim 5, characterized in that: The bottom end of the measuring meter (120) is fixed by a supporting block arranged at the top end of the air switch (100).

7. A weak current line safety protection device according to claim 1, characterized in that: The processor (221) is provided with a power switch, a circuit board and a single-chip computer, and the power switch is connected to a measuring meter (120) and a current transformer (110) in sequence through electric wires, the measuring meter (120) is fixed on the top of the air switch (100), and the current transformer (110) is installed on an external weak-line circuit, the indicator light (223), the buzzer (224) and the processor (221) are all electrically connected to the battery (222), and the indicator light (223) and the buzzer (224) are all electrically connected to the processor (221).

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