Electrical circuit safety detection device

Abstract

The utility model discloses an electrical circuit safety detection device comprising a housing, the top of the housing is provided with a pole, one end of the pole far away from the housing is provided with a lead, one end of the lead far away from the pole is provided with an insulating sleeve, and one end of the insulating sleeve far away from the lead is in threaded connection with a clamping detection mechanism. The clamping detection mechanism comprises a fixing block in threaded connection with the insulating sleeve, a cylindrical rod is slidably connected in the fixing block, a connecting block is fixedly connected to the end, away from the upper surface of the fixing block, of the cylindrical rod, a clamping jaw is movably connected in the connecting block, and an arc notch is formed in the end, away from the connecting block, of the clamping jaw. Conductive rubber layers are arranged on the inner walls of the arc notches of the clamping jaws. Through the above structure, in actual electrical circuit safety detection, the clamping jaw can be flexibly adjusted to perform self-adaptive clamping according to electrical circuits of different specifications, and an insulating layer of the electrical circuit does not need to be damaged, thereby facilitating electrical circuit detection by an operator.

Description

Technical Field

[0001] This utility model relates to the field of electrical circuit testing technology, specifically to an electrical circuit safety testing device. Background Technology

[0002] With the widespread application of electrical equipment in various fields, electrical safety issues have received increasing attention. Electrical testing includes the testing of power distribution equipment, the testing of wiring installation, and the installation of lights, switches, and sockets. Among these, the testing of electrical wiring after installation is particularly important, and the insulation testing of the wiring is crucial during the wiring installation process.

[0003] Currently, both exposed and concealed electrical wiring can be affected by environmental and physical factors, leading to conductivity issues in the insulation layer. These faults can not only damage electrical equipment but may also cause fires in severe cases, threatening people's lives.

[0004] Currently, existing electrical circuit safety testing devices on the market are typically fixed desktop devices with complex assembly, making them unsuitable for different electrical circuit specifications. They also suffer from inconvenient and flexibly adjustable clamping surfaces and complex operation, hindering workers from conducting rapid testing in various environments.

[0005] Therefore, the invention of an electrical circuit safety testing device that is easy to use and can be flexibly adjusted according to different specifications of electrical circuits is of great practical value, addressing the conductivity problem in electrical circuits with both visible and invisible components, and conducting precise electrical safety testing on the insulation layer of electrical circuits of different specifications. Utility Model Content

[0006] This utility model provides an electrical circuit safety testing device. In actual electrical circuit safety testing, the gripper can be flexibly adjusted to adaptively clamp according to different specifications of electrical circuits without damaging the insulation layer of the electrical circuit, thus facilitating the testing of electrical circuits by operators.

[0007] To achieve the above objectives, an electrical circuit safety testing device is provided, comprising a housing, a pole being provided on the top of the housing, a wire being installed at the end of the pole away from the housing, and an insulating sleeve being provided at the end of the wire away from the pole. The insulating sleeve is provided to protect the wire and prevent wear at the wire connection from affecting the conductivity. A clamping detection mechanism is threadedly connected to the end of the insulating sleeve away from the wire. The threaded connection of the clamping detection mechanism to the insulating sleeve is for easy installation, removal, replacement, and maintenance.

[0008] The clamping and detection mechanism includes a fixed block threadedly connected to an insulating sleeve. A cylindrical rod is slidably connected inside the fixed block. A connecting block is fixedly connected to one end of the cylindrical rod away from the upper surface of the fixed block. A gripper is movably connected inside the connecting block. An arc-shaped groove is provided on the clamping surface of the gripper away from the connecting block. A conductive rubber layer is provided on the inner wall of the arc-shaped groove of the gripper. The arc-shaped groove and the conductive rubber layer are designed to facilitate full contact with the electrical circuit while protecting the insulation layer of the circuit from being scratched.

[0009] Preferably, an adjustment knob is provided at the middle position of the upper surface of the housing, a display screen is provided near the top edge of the upper surface of the housing, a status indicator light is provided on the top surface of the housing away from the pole, and an alarm is provided near the bottom edge of the upper surface of the housing.

[0010] Preferably, the clamping and detection mechanism further includes a lifting lug, a connecting rod, a circular washer, a spring, an insulating button, and an insulating handle.

[0011] Preferably, the lifting lug is fixedly connected to the middle position of the side surface of the fixing block, one end of the connecting rod is rotatably connected to the inside of the lifting lug, and the end of the connecting rod away from the lifting lug is rotatably connected to the inside of the gripper. The insulating handle is fixedly connected to the lower surface of the fixing block near the side edge. The insulating handle is provided to facilitate the control and adjustment of the gripper, while also providing insulation to avoid affecting the detection effect.

[0012] Preferably, the insulating button is fixedly connected to the end of the cylindrical rod away from the connecting block. The insulating button is provided to facilitate control of pressing the cylindrical rod and to provide insulation to avoid affecting the current detection effect. The spring is sleeved on the outside of the cylindrical rod, and the circular washer is located directly below the end of the spring away from the insulating button. The circular washer is located in the middle of the lower surface of the fixing block and has a circular through hole. The cylindrical rod passes through the inside of the spring, the circular through hole of the circular washer, and the inside of the fixing block in sequence. The spring and the circular washer are designed to facilitate the use of the spring's rebound and reset action to drive the gripper to firmly hold the electrical circuit.

[0013] Preferably, the housing is a split structure, and a waterproof sealing ring is provided at the upper and lower connection of the housing. The purpose of providing the waterproof sealing ring is to extend the service life of the testing instrument and to prevent rainwater and other factors from affecting the working state of the internal electrical components.

[0014] The beneficial effects of this utility model are:

[0015] (1) In this utility model, by using the clamping and testing mechanism, the clamps can be flexibly adjusted to adapt to the specifications and length of the electrical circuit to be tested. At the same time, the conductive rubber layer on the inner side of the clamps flexibly wraps the circuit, which can ensure that the electrical circuit is not scratched during the safe testing process.

[0016] (2) In this utility model, the changes in the detection data can be observed through the display screen, and the threshold can be adjusted by adjusting the knob. When the current detection data abnormally exceeds the threshold, the alarm will sound a buzzer alarm warning, realizing the rapid detection and reminder of electrical circuits.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a perspective view of an electrical circuit safety testing device according to the present invention;

[0020] Figure 2 This is a partial structural schematic diagram of an electrical circuit safety detection device according to the present invention;

[0021] Figure 3 This is a perspective view of the clamping and testing mechanism of an electrical circuit safety testing device according to the present invention;

[0022] Figure 4 This is a perspective view of the gripper of an electrical circuit safety testing device according to this utility model.

[0023] Legend:

[0024] 1. Housing; 2. Adjustment knob; 3. Alarm; 4. Display screen; 5. Status indicator light; 6. Terminal post; 7. Wire; 8. Insulating sleeve; 9. Clamping and detection mechanism; 901. Fixing block; 902. Lifting lug; 903. Connecting rod; 904. Circular washer; 905. Spring; 906. Cylindrical rod; 907. Insulated button; 908. Insulated handle; 909. Connecting block; 910. Gripper; 911. Conductive rubber layer. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] Example:

[0028] Please see Figures 1-4 As shown, an electrical circuit safety testing device includes:

[0029] The housing 1 has a pole post 6 on its top. A wire 7 is installed at the end of the pole post 6 away from the housing 1. An insulating sleeve 8 is installed at the end of the wire 7 away from the pole post 6. A clamping and detection mechanism 9 is threadedly connected to the end of the insulating sleeve 8 away from the wire 7.

[0030] The clamping and detection mechanism 9 includes a fixing block 901 that is threadedly connected to the insulating sleeve 8. A cylindrical rod 906 is slidably connected inside the fixing block 901. A connecting block 909 is fixedly connected to one end of the cylindrical rod 906 away from the upper surface of the fixing block 901. A gripper 910 is movably connected inside the connecting block 909. The gripper 910 is made of metal. An arc groove is provided on the clamping surface of the gripper 910 away from the connecting block 909. A conductive rubber layer 911 is provided on the inner wall of the arc groove of the gripper 910. The wire 7 extends into the gripper 910 and connects to it.

[0031] The housing 1 has a split structure. A waterproof sealing ring is provided at the upper and lower connection of the housing 1. An adjustment knob 2 is provided in the middle of the upper surface of the housing 1. A display screen 4 is provided near the top edge of the upper surface of the housing 1. A status indicator light 5 is provided on the top surface of the housing 1 away from the pole 6. An alarm 3 is provided near the bottom edge of the upper surface of the housing 1. The housing 1 is equipped with a current signal receiving unit and a controller unit to facilitate the collection and control processing of the current signal transmitted from the clamping detection mechanism 9. A battery module is provided inside the housing 1 to provide power.

[0032] The clamping and detection mechanism 9 also includes a lifting lug 902, a connecting rod 903, a circular washer 904, a spring 905, an insulating button 907, and an insulating handle 908.

[0033] The lifting lug 902 is fixedly connected to the middle position of the side surface of the fixing block 901. One end of the connecting rod 903 is rotatably connected to the inside of the lifting lug 902, and the end of the connecting rod 903 away from the lifting lug 902 is rotatably connected to the inside of the gripper 910. The insulating handle 908 is fixedly connected to the lower surface of the fixing block 901 near the side edge.

[0034] An insulating button 907 is fixedly connected to the end of a cylindrical rod 906 away from the connecting block 909. A spring 905 is sleeved on the outside of the cylindrical rod 906. A circular washer 904 is located directly below the end of the spring 905 away from the insulating button 907. The circular washer 904 is located in the middle of the lower surface of the fixing block 901. The circular washer 904 is provided with a circular through hole. The cylindrical rod 906 passes through the spring 906 in sequence.

[0035] Application example:

[0036] When a resident experiences frequent power outages, it is suspected that the insulation of the concealed wiring within the wall is damaged. Workers, carrying this testing device, conduct non-destructive testing on the lighting wiring embedded in the wall. Holding the device, the worker securely grips the front clamping testing mechanism 9 via the insulated handle 908. Pressing the insulated button 907 triggers the spring 905 compression mechanism, causing the connecting block 909 and connecting rod 903 to open the jaws 910 to a suitable width for the wiring. The worker aligns the arc-shaped groove of the jaws 910 with the wiring to be tested (surface-mounted or concealed). Releasing the button causes the spring 905 to rebound, tightening the jaws 910. The inner conductive rubber layer 911 flexibly wraps around the wiring surface through elastic deformation, forming a gapless electrical contact (without needing to peel off the insulation layer). The worker then sets the leakage current detection threshold using the adjustment knob 2 on the housing 1 (selecting different safety levels according to the scenario). After connecting the power supply to the circuit, the display screen 4 shows the current data in real time, and the status indicator light 5 simultaneously reflects the working status. When abnormal current is detected due to insulation damage to the line, the data on display 4 shows significant fluctuations and exceeds the preset threshold. The alarm 3 immediately sounds a buzzer and the status indicator 5 turns red and flashes. The staff can judge the degree of fault based on the intensity of the sound and light feedback. Keeping the gripper 910 in the gripping state, the device is slowly moved along the line. The leakage area is located by the peak value of the data fluctuation. If it is necessary to test a narrow space, the gripping mechanism can be quickly disassembled and the micro module or extension rod can be replaced to accurately retest the wall cavities, equipment interiors, etc., and locate the specific damage point for repair.

[0037] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. An electrical circuit safety detection device, characterized in that, Includes a housing (1), the top of the housing (1) is provided with a pole post (6), a wire (7) is installed at the end of the pole post (6) away from the housing (1), an insulating sleeve (8) is provided at the end of the wire (7) away from the pole post (6), and a clamping detection mechanism (9) is threadedly connected to the end of the insulating sleeve (8) away from the wire (7). The clamping and detection mechanism (9) includes a fixing block (901) threadedly connected to the insulating sleeve (8). A cylindrical rod (906) is slidably connected inside the fixing block (901). A connecting block (909) is fixedly connected to one end of the cylindrical rod (906) away from the upper surface of the fixing block (901). A gripper (910) is movably connected inside the connecting block (909). An arc groove is provided on the gripping surface of the gripper (910) away from the connecting block (909). A conductive rubber layer (911) is provided on the inner wall of the arc groove of the gripper (910).

2. The electrical circuit safety detection device according to claim 1, characterized in that, An adjustment knob (2) is provided in the middle of the upper surface of the housing (1). A display screen (4) is provided on the upper surface of the housing (1) near the top edge. A status indicator light (5) is provided on the top surface of the housing (1) away from the pole (6). An alarm (3) is provided on the upper surface of the housing (1) near the bottom edge.

3. The electrical circuit safety detection device according to claim 1, characterized in that, The clamping and detection mechanism (9) also includes a lug (902), a connecting rod (903), a circular washer (904), a spring (905), an insulating button (907), and an insulating handle (908).

4. The electrical circuit safety detection device according to claim 3, characterized in that, The lifting lug (902) is fixedly connected to the middle position of the side surface of the fixing block (901). One end of the connecting rod (903) is rotatably connected to the inside of the lifting lug (902). The end of the connecting rod (903) away from the lifting lug (902) is rotatably connected to the inside of the gripper (910). The insulating handle (908) is fixedly connected to the lower surface of the fixing block (901) near the side edge.

5. The electrical circuit safety detection device according to claim 4, characterized in that, The insulating button (907) is fixedly connected to the end of the cylindrical rod (906) away from the connecting block (909). The spring (905) is sleeved on the outside of the cylindrical rod (906). The circular washer (904) is located directly below the end of the spring (905) away from the insulating button (907). The circular washer (904) is located in the middle of the lower surface of the fixing block (901). The circular washer (904) is provided with a circular through hole. The cylindrical rod (906) passes through the inside of the spring (905), the circular through hole of the circular washer (904), and the inside of the fixing block (901) in sequence.

6. The electrical circuit safety detection device according to claim 1, characterized in that, The housing (1) is a split structure, and a waterproof sealing ring is provided at the upper and lower connection of the housing (1).

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