A circuit detecting pen with digital display buzzer alarm

Abstract

The utility model provides a kind of circuit detection pen with digital display buzzer alarm, comprising: pen body and the mainboard being installed in its inside by bolt;Fixedly installed on the surface of pen body and electrically connected with mainboard's digital display;Fixedly installed on the surface of pen body and electrically connected with mainboard's buzzer;Fixedly installed at one end of mainboard's U-shaped clamp one;Fixedly installed at one end of pen body's insulating sleeve;Detection main probe is inserted into and cooperates with U-shaped clamp one in the insulating sleeve and is inserted into.The detection main probe is contacted with the line to be detected, and the detection main probe is directly connected with mainboard by U-shaped clamp one, and the data of simultaneous detection is fed back to digital display on mainboard, so that digital display carries out positive and negative electrode bidirectional display, and personnel viewing is facilitated, when main body is inconvenient to watch, whether detection is normal can be judged by whether buzzer issues alarm, so as to remind personnel, therefore realize the effect that test pen has alarm function, effectively improve the functional property of test pen.

Description

Technical Field

[0001] This utility model relates to the field of circuit testing technology, specifically to a circuit testing pen with a digital display and buzzer alarm. Background Technology

[0002] A test pen, also called a voltage tester, is an electrical tool used to test whether a wire is live. It contains a neon bulb; if the bulb lights up during testing, it indicates that the wire is energized or is a live wire. The tip and end of the test pen are made of metal, while the barrel is made of insulating material. When using a test pen, you must always touch the metal part at the end of the pen with your hand. Otherwise, because a circuit is not formed between the live conductor, the test pen, your body, and the ground, the neon bulb will not light up, leading to a false alarm that the conductor is not energized.

[0003] A known authorized patent with application number CN202223563761.7 discloses a test pen. Its background art addresses the problem that "because the positions of the probe and the display screen are relatively fixed in this solution, in actual use, when testing power sources in concealed locations, the display screen may not be facing the user after the probe is inserted into the socket, making it inconvenient to read the display screen." To address this problem, the technical solution includes "a housing, a test component placed within the housing, and a rod. The test component has a conductive rod, and the rod is sleeved on the outside of the conductive rod. The housing has a locking component for locking the rod's degree of freedom."

[0004] However, in implementing the relevant technologies, the following problems were found in the existing technical solutions: At present, most common test pens do not have digital display alarm functions. When in a narrow space where the main body cannot be observed, it is difficult to determine whether the test circuit is normal. Moreover, the tips of most existing test pens are fixedly installed. When the tip is damaged or a different type is replaced, it is inconvenient to disassemble the tip for maintenance and replacement, which makes it inconvenient to use. This reduces the functionality and ease of use of the test pen. Utility Model Content

[0005] This invention proposes a circuit testing pen with a digital display and buzzer alarm, which solves the problems that most existing common test pens in related technologies do not have a digital display alarm function and are inconvenient to disassemble for maintenance and replacement.

[0006] The technical solution of this utility model is as follows: a circuit testing pen with a digital display buzzer alarm, comprising: a pen body and a main board installed inside it by bolts;

[0007] A digital display that is fixedly mounted on the surface of the pen body and electrically connected to the motherboard;

[0008] A buzzer that is fixedly mounted on the surface of the pen body and electrically connected to the motherboard;

[0009] A U-shaped clip fixedly installed at one end of the motherboard;

[0010] An insulating sleeve is fixedly installed at one end of the pen body;

[0011] The main detection probe runs through the insulating sleeve and is inserted into the U-shaped clamp;

[0012] And a locking mechanism located on the insulating sleeve for fixing the main detection probe.

[0013] Preferably, the locking mechanism includes a mounting sleeve fixedly mounted on the surface of the insulating sleeve, a threaded rod threadedly connected to one end of the mounting sleeve, an arc-shaped clamping block rotatably connected to one end of the threaded rod and in contact with the main detection probe, a limiting rod fixedly mounted on one side of the arc-shaped clamping block and slidingly penetrating the mounting sleeve, and a rotating block fixedly connected to one end of the threaded rod.

[0014] Preferably, two U-shaped clips are symmetrically fixedly connected to the other end of the motherboard, and a light bulb is provided at the other end of the pen body to be inserted into the U-shaped clips.

[0015] Preferably, an alligator clip is provided on one side of the pen body, the alligator clip is electrically connected to the main board via a wire, and the handle of the alligator clip is connected to a detection auxiliary probe via a wire.

[0016] The working principle and beneficial effects of this utility model are as follows:

[0017] 1. By contacting the main testing probe with the circuit under test and directly connecting the main testing probe and the main board via a U-shaped clamp, the test data is fed back to the digital display via the main board, allowing the digital display to show both positive and negative values ​​for easy viewing. When the main board is inconvenient to view, the presence of an alarm by a buzzer indicates whether the test is normal, thus alerting personnel. Therefore, the test pen has an alarm function, ensuring flexibility of use and effectively improving its functionality.

[0018] 2. After the main probe is inserted into the insulating sleeve, the rotating block drives the threaded rod to rotate, which in turn moves the arc-shaped clamping block and causes the limiting rod to slide on the mounting sleeve. This allows the arc-shaped clamping block and the main probe to come into contact and be fixed. During disassembly and maintenance, the threaded rod is reversed to separate the arc-shaped clamping block and the main probe, thus allowing the main probe to be disassembled. This enables the main probe to be disassembled, maintained, and replaced, making it convenient to disassemble when damaged and improving ease of use. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0021] Figure 2 This is a side view of the three-dimensional structure of the present invention;

[0022] Figure 3 This is a cross-sectional three-dimensional structural diagram of the pen body of this utility model;

[0023] Figure 4 This is a partial three-dimensional structural diagram of the insulating sleeve of this utility model.

[0024] In the diagram: 1. Pen body; 2. Main board; 3. Digital display; 4. Buzzer; 5. U-shaped clamp one; 6. Insulating sleeve; 7. Main detection probe; 8. Mounting sleeve; 9. Threaded rod; 10. Arc-shaped clamp; 11. Limiting rod; 12. Rotating block; 13. U-shaped clamp two; 14. Light bulb; 15. Alligator clip; 16. Auxiliary detection probe; 17. Suspension clip. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0026] Please see Figure 1 - Figure 4 The present invention provides a circuit testing pen with a digital display buzzer alarm, comprising: a pen body 1 and a main board 2 installed inside it by bolts;

[0027] A digital display 3 is fixedly mounted on the surface of the pen body 1 and electrically connected to the motherboard 2;

[0028] A buzzer 4 is fixedly installed on the surface of the pen body 1 and electrically connected to the main board 2;

[0029] U-shaped clip 5 is fixedly installed at one end of motherboard 2;

[0030] An insulating sleeve 6 is fixedly installed at one end of the pen body 1;

[0031] The main detection probe 7 penetrates through the insulating sleeve 6 and is inserted into the U-shaped clamp 5;

[0032] And a locking mechanism provided on the insulating sleeve 6 for fixing the main detection probe 7.

[0033] The technical solution provided in this embodiment is as follows: In use, the main detection probe 7 is inserted into the insulating sleeve 6 and connected to the U-shaped clip 5. The main detection probe 7 is then fixed by a locking mechanism to ensure its stability. During testing, the main detection probe 7 is brought into contact with the circuit to be tested, and the main detection probe 7 is directly connected to the main board 2 via the U-shaped clip 5. At the same time, the detected data is fed back to the digital display 3 via the main board 2, allowing the digital display 3 to display the positive and negative poles bidirectionally for easy viewing. When the main body is inconvenient to view, an alarm is triggered by the buzzer 4 to determine whether the test is normal. If an abnormality is detected in the circuit, the buzzer 4 can sound an alarm to remind personnel. Therefore, the test pen has an alarm function, ensuring flexibility of use and effectively improving the functionality of the test pen.

[0034] Furthermore, the locking mechanism includes a mounting sleeve 8 fixedly mounted on the surface of the insulating sleeve 6, a threaded rod 9 threadedly connected to one end of the mounting sleeve 8, an arc-shaped clamping block 10 rotatably connected to one end of the threaded rod 9 and in contact with the main detection probe 7, a limiting rod 11 fixedly mounted on one side of the arc-shaped clamping block 10 and sliding through the mounting sleeve 8, and a rotating block 12 fixedly connected to one end of the threaded rod 9.

[0035] Specifically, when replacing the main detection probe 7, the main detection probe 7 is inserted into the insulating sleeve 6 and connected to the U-shaped clamp 5. Then, the rotating block 12 drives the threaded rod 9 to rotate, causing the threaded rod 9 to move under the action of the thread, which in turn drives the arc-shaped clamp 10 to move. At the same time, the arc-shaped clamp 10 drives the limiting rod 11 to slide on the mounting sleeve 8 to ensure the stability of the movement of the arc-shaped clamp 10. This makes the arc-shaped clamp 10 abut against the main detection probe 7, thereby fixing the main detection probe 7. Conversely, when disassembling and maintaining, the rotating block 12 is reversed to drive the threaded rod 9 to reverse, causing the arc-shaped clamp 10 to enter the mounting sleeve 8 and separate from the main detection probe 7, so that the main detection probe 7 can be pulled out for disassembly. This achieves the effect of disassembling, assembling, maintaining and replacing the main detection probe 7, which is convenient for disassembly when it is damaged and improves the ease of use.

[0036] Furthermore, two U-shaped clips 13 are symmetrically fixedly connected to the other end of the motherboard 2, and a light bulb 14 is provided at the other end of the pen body 1 to be inserted into the U-shaped clips 13.

[0037] Specifically, by setting up bulb 14, when testing the circuit, the normality can be determined by observing bulb 14. If the circuit is normal, bulb 14 will be bright; if it is not normal, bulb 14 will be dark or dim. In addition, bulb 14 adopts a direct-plug structure, which is convenient for subsequent maintenance and disassembly.

[0038] Furthermore, an alligator clip 15 is provided on one side of the pen body 1. The alligator clip 15 is electrically connected to the main board 2 via a wire. The handle of the alligator clip 15 is connected to a detection auxiliary probe 16 via a wire.

[0039] Specifically, by setting an auxiliary detection probe 16 on the alligator clip 15, it is easy to use with the main detection probe 7 to insert the detection terminal, making it convenient to detect electrical plugs, and the auxiliary detection probe 16 can be used for detection in confined spaces.

[0040] It should be noted that the working principle of the alligator clip 15, the detection auxiliary probe 16, and the motherboard 2 is the prior art disclosed in this field. For details, please refer to the utility model patent disclosed in CN201535790U. The specific details will not be elaborated here.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A circuit testing pen with a digital display buzzer alarm, characterized in that, include: The pen body (1) and the main board (2) which is bolted to its interior; A digital display (3) is fixedly installed on the surface of the pen body (1) and electrically connected to the motherboard (2); A buzzer (4) is fixedly installed on the surface of the pen body (1) and electrically connected to the main board (2); A U-shaped clip (5) is fixedly installed at one end of the motherboard (2); An insulating sleeve (6) is fixedly installed at one end of the pen body (1); The detection main probe (7) penetrates through the insulating sleeve (6) and is inserted into the U-shaped clamp (5); And a locking mechanism provided on the insulating sleeve (6) for fixing the main detection probe (7); The locking mechanism includes a mounting sleeve (8) fixedly mounted on the surface of the insulating sleeve (6), a threaded rod (9) threadedly connected to one end of the mounting sleeve (8), an arc-shaped clamp (10) rotatably connected to one end of the threaded rod (9) and in contact with the main detection probe (7), a limiting rod (11) fixedly mounted on one side of the arc-shaped clamp (10) and sliding through the mounting sleeve (8), and a rotating block (12) fixedly connected to one end of the threaded rod (9). Two U-shaped clips (13) are symmetrically fixedly connected to the other end of the main board (2), and a light bulb (14) is provided at the other end of the pen body (1) and is inserted into the U-shaped clips (13). The pen body (1) is provided with an alligator clip (15) on one side. The alligator clip (15) is electrically connected to the main board (2) through a wire. The handle of the alligator clip (15) is connected to a detection auxiliary probe (16) through a wire.

Images