Electric leakage detection device for electrical fire protection

By designing an electrical fire leakage detection device with an air pump and a buzzer, the risk of sparks caused by electrostatic discharge during the detection process of existing devices has been solved, and safe leakage detection has been achieved.

CN223664754UActive Publication Date: 2025-12-12SHANDONG MINGSHAN FIRE ENGINEERING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423126547.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-12-12
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

Existing electrical fire protection leakage detection devices may generate sparks during the detection process due to electrostatic discharge, which could ignite flammable materials and pose a risk of fire and explosion.

Method used

An electrical fire protection leakage detection device was designed, which includes an operating handle, protective components, a feedback device, and an air supply component. The device provides airflow through an air pump to reduce the concentration of flammable and explosive gases inside the sealed sleeve, and issues an alarm through a buzzer during detection.

Benefits of technology

It effectively reduces the possibility of sparks caused by electrostatic discharge, avoids the risk of fire or explosion during the testing process, and prevents users from touching objects with their hands when conducting tests in different environments.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223664754U_ABST
    Figure CN223664754U_ABST
Patent Text Reader

Abstract

The utility model provides an electric leakage detection device for electrical fire protection, and relates to the technical field of electrical fire protection. A protection assembly; the protection assembly comprises a torsion shaft rotationally connected to the operation handle, one end, away from the operation handle, of the torsion shaft is fixedly connected with a telescopic column, one end, away from the operation handle, of the telescopic column is internally and fixedly connected with a fixed column, the telescopic column is internally and slidably connected with a sealing sleeve, and the sealing sleeve is internally and slidably connected with a testing metal head. The outer side of the test metal head is sleeved with a pressure spring. According to the design, a closed space is formed through the sealing sleeve, and then the concentration of inflammable gas in the sealing sleeve is reduced through air flow provided by the air pump, so that the possibility of sparks caused by electrostatic discharge is effectively reduced, and the potential safety hazard of fire or explosion in the electrical equipment detection process is avoided; and the torsion shaft drives the telescopic column to move, so that detection can be carried out in different environments, and electric injury caused by contact between the hand of a user and an object is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of electrical fire protection technology, and in particular to an electrical fire protection leakage detection device. Background Technology

[0002] Electrical fire protection leakage detection devices are specially designed for real-time monitoring of the operating status of electrical equipment. They can sensitively detect abnormal conditions that may lead to fire, such as leakage, overload, and short circuit. When these danger signals are detected, they immediately trigger audible and visual alarms to quickly remind relevant personnel to take countermeasures, thereby effectively preventing electrical fires.

[0003] Most existing detection devices detect whether an object is leaking electricity by having a metal head contact the object to be tested. The device sends feedback when the object becomes conductive, alerting the user to the presence of a leak. However, in practice, the static electricity generated when the metal head contacts the object can be transmitted into the air. If flammable gases are present in the air, the sparks generated by the static discharge can become an ignition source, potentially igniting flammable materials and causing fires and explosions, resulting in personal injury and property damage.

[0004] Therefore, this utility model provides an electrical fire protection leakage detection device. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an electrical fire protection leakage detection device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an electrical fire protection leakage detection device, comprising;

[0007] Operating handle;

[0008] A protective assembly; the protective assembly includes a torque shaft rotatably connected to an operating handle, a telescopic column fixedly connected to one end of the torque shaft away from the operating handle, a fixed column fixedly connected inside the end of the telescopic column away from the operating handle, a sealing sleeve slidably connected inside the telescopic column, a test metal head slidably connected inside the sealing sleeve, and a pressure spring sleeved on the outside of the test metal head.

[0009] Feedback device; the feedback device includes a transmission line resistor fixedly connected to a fixed column, and a buzzer is fixedly connected to the end of the transmission line resistor away from the sealing sleeve.

[0010] An air delivery assembly; the air delivery assembly includes an air pump mounted on a torque shaft, with an air intake pipe fixedly connected to the input end of the air pump and an air inlet pipe fixedly connected to the output end of the air pump.

[0011] In a preferred embodiment, one end of the pressure spring is fixedly connected to the fixed post, and the other end of the pressure spring is fixedly connected to the sealing sleeve.

[0012] In a preferred embodiment, the outer side of the sealing sleeve is slidably connected to the telescopic column.

[0013] In a preferred embodiment, the outer side of the inhalation tube passes through the telescopic column and extends outward.

[0014] In a preferred embodiment, the outer side of the intake pipe is fixedly connected to the sealing sleeve via a through-hole fixing post.

[0015] In a preferred embodiment, the outer side of the buzzer is mounted inside the telescopic column.

[0016] In a preferred embodiment, the telescopic column is in the shape of a multi-stage telescopic joint, and the intake pipe has the same length as the telescopic column.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0018] This invention utilizes a handheld operating handle to drive a torque shaft, thereby adjusting the length of the telescopic column. During this process, an air pump is activated, delivering filtered air through an air inlet pipe to the sealing sleeve, reducing the concentration of flammable and explosive gases within the sleeve. The moment the test metal head contacts the object, electrical conductivity is detected, and an alarm sounds to alert the user. This design, by creating a sealed space through the sealing sleeve and then reducing the concentration of flammable gases through airflow from the air pump, effectively minimizes the possibility of sparks caused by electrostatic discharge, avoiding the safety hazards of fire or explosion during electrical equipment testing. Furthermore, the movement of the telescopic column driven by the torque shaft allows for testing in various environments, preventing electric shocks from contact between the user's hands and the object. Attached Figure Description

[0019] Figure 1 A perspective view of an electrical fire protection leakage detection device provided by this utility model;

[0020] Figure 2 A schematic diagram of the protective component structure of an electrical fire protection leakage detection device provided by this utility model;

[0021] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0022] Figure 4 A schematic diagram of the air supply component structure of an electrical fire protection leakage detection device provided by this utility model.

[0023] Legend:

[0024] 1. Operating handle;

[0025] 2. Protective components; 21. Torsion shaft; 22. Telescopic column; 23. Fixed column; 24. Compression spring; 25. Test metal head; 26. Sealing sleeve;

[0026] 3. Feedback device; 31. Transmission line resistance; 32. Buzzer;

[0027] 4. Air delivery assembly; 41. Air pump; 42. Suction pipe; 43. Inlet pipe. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figure 1 - Figure 4 As shown, this embodiment provides a technical solution: an electrical fire protection leakage detection device, comprising;

[0030] Operating handle 1;

[0031] Protective component 2; Protective component 2 includes a torque shaft 21 rotatably connected to the operating handle 1, a telescopic column 22 fixedly connected to one end of the torque shaft 21 away from the operating handle 1, a fixed column 23 fixedly connected inside the end of the telescopic column 22 away from the operating handle 1, a sealing sleeve 26 slidably connected inside the telescopic column 22, a test metal head 25 slidably connected inside the sealing sleeve 26, a pressure spring 24 sleeved on the outside of the test metal head 25, one end of the pressure spring 24 fixedly connected to the fixed column 23, the other end of the pressure spring 24 fixedly connected to the sealing sleeve 26, and the outside of the sealing sleeve 26 slidably connected to the telescopic column 22;

[0032] The operating handle 1 is the main part for user operation and gripping, making it easy for users to carry and operate the device. The torsion shaft 21 connects the operating handle 1 and the telescopic column 22, transmitting operating force so that the telescopic column 22 can rotate. The telescopic column 22 realizes the telescopic function, making it convenient for users to conduct tests at different distances. The telescopic column 22 provides an adjustable length, allowing the device to adapt to different testing environments and distances. The fixing column 23 is at one end of the telescopic column 22, providing a fixing point for other components, ensuring the structural stability of the device and the fixing relationship between components. The sealing sleeve provides a sealing function to prevent external dust and moisture from entering the interior. The test metal head 25 is used to directly contact the object being tested for leakage detection. The pressure spring 24 provides a rebound force for the test metal head 25, ensuring that it retracts into 26 after the test is completed.

[0033] like Figure 1 - Figure 3 As shown, the feedback device 3 includes a transmission line resistor 31 fixedly connected to the fixed column 23. A buzzer 32 is fixedly connected to one end of the transmission line resistor 31 away from the sealing sleeve 26. The outer side of the buzzer 32 is installed inside the telescopic column 22.

[0034] The transmission line resistor 31 transmits an electrical signal, causing the buzzer 32 to sound when a leakage current is detected. The buzzer 32 provides an audible alarm when a leakage current is detected, offering auditory feedback to the operator.

[0035] like Figure 1 , Figure 3 and Figure 4 As shown, the air supply assembly 4 includes an air pump 41 mounted on a torque shaft 21. The input end of the air pump 41 is fixedly connected to an air suction pipe 42. The outer side of the air suction pipe 42 passes through the telescopic column 22 and extends outward. The output end of the air pump 41 is fixedly connected to an air inlet pipe 43. The outer side of the air inlet pipe 43 passes through a fixed column 23 and is fixedly connected to a sealing sleeve 26. The telescopic column 22 is in the shape of a multi-stage telescopic joint, and the length of the air inlet pipe 43 is the same as that of the telescopic column 22.

[0036] The air pump 41 generates airflow to provide power for air delivery. Through the operation of the air pump 41, sufficient airflow can be generated to ensure that the gas can be effectively delivered to the required location. The suction pipe 42 serves as the input end of the air pump 41 and is used to draw in air or other gases from the outside. The suction pipe 42 is designed with an air filtration device such as activated carbon to perform preliminary filtration of the air entering the interior. The air inlet pipe 43 serves as the output end of the air pump 41 and is used to deliver the airflow generated by the air pump 41 to the sealing sleeve 26, ensuring that the airflow generated by the air pump 41 can be effectively guided and delivered, thereby improving the efficiency of gas delivery.

[0037] like Figure 1 - Figure 4 As shown:

[0038] In use: First, hold the operating handle 1 and rotate the torque shaft 21 to adjust the telescopic column 22 to a suitable position. Then, press the button on the operating handle 1 to start the air pump 41. The air pump 41 will transmit filtered air through the suction pipe 42 and the air intake pipe 43 to the sealing sleeve 26. When the telescopic column 22 is retracted to a suitable length and the sealing sleeve 26 comes into contact with the object, pressure is applied to the pressure spring 24. At this time, the test metal head 25 will be level with the sealing sleeve 26, so that the test metal head 25 makes contact with the object. Then, when the object emits electricity during the inspection, the air transmitted through the air intake pipe 43 will reduce the flammable and explosive air in the sealing sleeve 26, thereby reducing the occurrence of accidents. Then, the electricity is transmitted to the transmission line resistance 31 through the test metal head 25, and then the buzzer 32 will sound an alarm to remind the user.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An electrical fire protection leakage detection device, characterized in that, include; Operating handle (1); Protective component (2); The protective component (2) includes a torque shaft (21) rotatably connected to the operating handle (1), a telescopic column (22) is fixedly connected to one end of the torque shaft (21) away from the operating handle (1), a fixed column (23) is fixedly connected inside the one end of the telescopic column (22) away from the operating handle (1), a sealing sleeve (26) is slidably connected inside the telescopic column (22), a test metal head (25) is slidably connected inside the sealing sleeve (26), and a pressure spring (24) is sleeved on the outside of the test metal head (25); Feedback device (3); The feedback device (3) includes a transmission line resistor (31) fixedly connected to the fixed column (23), and a buzzer (32) is fixedly connected to the end of the transmission line resistor (31) away from the sealing sleeve (26). Air delivery assembly (4); the air delivery assembly (4) includes an air pump (41) mounted on a torque shaft (21), the input end of the air pump (41) is fixedly connected to an air suction pipe (42), and the output end of the air pump (41) is fixedly connected to an air inlet pipe (43).

2. The electrical fire protection leakage detection device according to claim 1, characterized in that: One end of the pressure spring (24) is fixedly connected to the fixed post (23), and the other end of the pressure spring (24) is fixedly connected to the sealing sleeve (26).

3. The electrical fire protection leakage detection device according to claim 1, characterized in that: The outer side of the sealing sleeve (26) is slidably connected to the telescopic column (22).

4. The electrical fire protection leakage detection device according to claim 1, characterized in that: The outside of the air intake pipe (42) passes through the telescopic column (22) and extends outward.

5. An electrical fire protection leakage detection device according to claim 1, characterized in that: The outer side of the air intake pipe (43) is fixedly connected to the sealing sleeve (26) by the fixing post (23).

6. The electrical fire protection leakage detection device according to claim 1, characterized in that: The buzzer (32) is mounted on the outside of the telescopic column (22) inside.

7. The electrical fire protection leakage detection device according to claim 1, characterized in that: The telescopic column (22) is in the shape of a multi-stage telescopic joint, and the intake pipe (43) has the same length as the telescopic column (22).