A circuit detection pen with digital display pulse signal strength detection function

Abstract

The utility model provides a kind of circuit detection pen with digital display pulse signal strength detection function, comprising: detection pen itself and the clamp being arranged in the one side of detection pen itself and the probe being fixedly connected on the clamp, wire mechanism being arranged on the detection pen itself, and the clamp is connected with detection pen itself by wire mechanism, installation groove being opened in the handle of detection pen itself, circuit mainboard being arranged in the inside of installation groove, cap is screwed on detection pen itself by connecting thread, then in the cooperation of reinforcing assembly, cap can be stably fixed on detection pen itself to protect plug-in power bulb, so as not to cause impact to the use of plug-in power bulb, and the device can be placed in tool bag and carried, or in use, plug-in power bulb is easy to break when accidentally falling from the hand of staff, to avoid the impact on the use of detection pen itself and circuit detection work.

Description

Technical Field

[0001] This utility model relates to the field of circuit testing technology, specifically to a circuit testing pen with digital display pulse signal strength detection function. Background Technology

[0002] A circuit tester is an electrical tool mainly used to detect whether wires or other conductive objects are live. Modern automotive circuits consist of two parts: a computer control circuit and a traditional switching circuit. Circuit testers are commonly used to test circuits in automotive circuit troubleshooting.

[0003] Chinese patent CN201535790U discloses an automotive circuit testing pen. It includes a pen body, a circuit board housed within the pen body and connected to it via fixing bolts, two U-shaped clips (number 2 and 3) fixedly connected to the upper part of the circuit board, an incandescent light bulb inserted into the two U-shaped clips, a U-shaped clip (number 1) fixedly connected to the lower part of the circuit board, a main probe located at the lower part of the pen body and inserted into the U-shaped clip (number 1), an insulating sleeve located at the end of the pen body and fitted onto the main probe, an alligator clip connected to the circuit board via a wire, and an auxiliary probe located at the handle of the alligator clip. The circuit board has two LEDs connected in opposite phase, and a current-limiting resistor connected in series with these two LEDs. It has a simple structure, multiple functions, is easy to use, and is readily applicable.

[0004] However, the following problems were found in the implementation of the relevant technology: When the circuit pen is carried in a tool bag or is accidentally dropped from the worker's hand, the incandescent bulb on the circuit pen is prone to breakage, which will affect the use of the circuit pen and the circuit testing work. Secondly, in the existing technology, the alligator clip and the circuit pen are directly connected by a wire. When it is damaged and needs to be replaced, the wire must be removed from the alligator clip or the pen body and then reconnected. The process is relatively cumbersome and time-consuming, which reduces work efficiency. Utility Model Content

[0005] To address the aforementioned problems, this invention proposes a circuit testing pen with digital display pulse signal strength detection function, thereby resolving the issues present in the prior art.

[0006] To achieve the above objectives, this utility model provides a circuit testing pen with digital display pulse signal strength detection function, comprising: a testing pen itself, a clip disposed on one side of the testing pen itself, and a probe fixedly connected to the clip, a wire mechanism disposed on the testing pen itself, wherein the clip and the testing pen itself are connected through the wire mechanism, a mounting groove opened on the handle of the testing pen itself, a circuit board disposed inside the mounting groove, a digital display screen mounted on the circuit board, a pluggable power bulb disposed at the tail of the testing pen itself, a connecting thread opened at the tail of the testing pen itself, a cap threadedly connected to the tail of the testing pen itself through the connecting thread, and a reinforcement component disposed on the outside of the cap for reinforcing the cap.

[0007] Furthermore, the wire mechanism includes a first connecting wire fixedly connected to the circuit board, one end of the first connecting wire passing through one side wall of the detection pen itself and fixedly connected to a wire connector, a second connecting wire fixedly connected to the clip, and the other end of the second connecting wire fixedly connected to a wire plug, and the wire plug and the wire connector are plugged into each other.

[0008] Furthermore, both the handle and the cap on the testing pen are made of transparent material.

[0009] Furthermore, the handle of the detection pen itself is provided with a locking mechanism, and the locking mechanism is in contact with the circuit board.

[0010] Furthermore, the locking mechanism includes a screw hole opened at the handle of the test pen itself, a screw is threaded on the inner side of the screw hole, and the screw end is in contact with the circuit board.

[0011] Furthermore, the reinforcing component includes a fixing ring sleeved on the outside of the cap, with multiple plug-in plates sequentially fixed in a circular array at the bottom of the fixing ring. The outer side wall of the detection pen itself near the tail has an annular groove, and the protrusion on one side of the plug-in plate engages with the annular groove. Multiple limiting blocks are sequentially fixed in a circular array on the outer side wall of the cap, and the limiting blocks are located between two of the plug-in plates.

[0012] The working principle and beneficial effects of this utility model are as follows:

[0013] 1. The cap is screwed onto the test pen itself via the connecting thread. With the help of the reinforcement components, the cap can be stably fixed to the test pen to protect the pluggable power bulb. This will not affect the use of the pluggable power bulb, and will also prevent the pluggable power bulb from breaking if the device is accidentally dropped from the operator's hand while being carried in a tool bag or during use. This will avoid affecting the use of the test pen itself and the circuit testing work.

[0014] 2. By connecting the wire connector on the first connecting wire and the wire plug on the second connecting wire, the clip and the test pen can be quickly assembled and disassembled, making the process simple and fast. This greatly reduces the time-consuming problem and ensures work efficiency. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed in this utility model;

[0017] Figure 2 A schematic diagram of the conductor mechanism of this utility model is provided;

[0018] Figure 3 A cross-sectional structural diagram of the detection pen itself is provided for this utility model;

[0019] Figure 4 A structural schematic diagram of the reinforcement component is provided for this utility model;

[0020] In the image: 1. The testing pen itself; 2. The clip; 3. The probe;

[0021] 4. Wire connection mechanism; 41. First connecting wire; 42. Wire connector; 43. Second connecting wire; 44. Wire plug;

[0022] 5. Screws; 6. Mounting slots; 7. Circuit board; 8. Digital display screen; 9. Plug-in wattage bulbs; 10. Connecting threads; 11. Caps;

[0023] 12. Reinforcing components; 1201. Fixing ring; 1202. Connecting plate; 1203. Annular groove; 1204. Limiting block;

[0024] 13. Screw hole. Detailed Implementation

[0025] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, specific embodiments of this utility model are now described with reference to the accompanying drawings. However, the scope of protection of this utility model is not limited to the following description.

[0026] Please see Figure 1 - Figure 4 A circuit testing pen with digital display pulse signal strength detection function includes: a testing pen itself 1, a clip 2 disposed on one side of the testing pen itself 1, and a probe 3 fixedly connected to the clip 2, a wire mechanism 4 disposed on the testing pen itself 1, and the clip 2 and the testing pen itself 1 are connected through the wire mechanism 4, a mounting groove 6 opened on the handle of the testing pen itself 1, a circuit board 7 disposed inside the mounting groove 6, a digital display screen 8 mounted on the circuit board 7, a pluggable power bulb 9 inserted into the tail of the testing pen itself 1, a connecting thread 10 opened at the tail of the testing pen itself 1, a cap 11 threadedly connected to the tail of the testing pen itself 1 through the connecting thread 10, and a reinforcement component 12 disposed on the outside of the cap 11 for reinforcing the cap 11.

[0027] The present invention provides a technical solution in which a cap 11 is screwed onto the test pen 1 by the connecting thread 10 on the test pen itself 1. This protects the pluggable power bulb 9 from breakage if the device is accidentally dropped from the worker's hand while being carried in a tool bag or during use. In addition to protection, the reinforcement component 12 improves the fixing effect between the cap 11 and the test pen 1, making it less likely for the cap 11 to fall off the threaded connection on the test pen 1. During subsequent testing, the positive and negative bidirectional digital display on the digital display screen 8 on the circuit board 7 can be displayed for easy viewing by personnel.

[0028] Preferably, the wire mechanism 4 includes a first connecting wire 41 fixedly connected to the circuit board 7. One end of the first connecting wire 41 passes through one side wall of the detection pen itself 1 and is fixedly connected to a wire connector 42. A second connecting wire 43 is fixedly connected to the clip 2. The other end of the second connecting wire 43 is fixedly connected to a wire plug 44, and the wire plug 44 and the wire connector 42 are plugged into each other.

[0029] Specifically, by manually connecting or disconnecting the wire connector 42 on the first connecting wire 41 and the wire plug 44 on the second connecting wire 43, the clip 2 and the detection pen itself 1 can be quickly assembled and disassembled, making the process simple and fast, greatly reducing the problem of long time consumption, and ensuring work efficiency.

[0030] Preferably, the handle and cap 11 on the testing pen itself 1 are both made of transparent material.

[0031] Specifically, since the handle and cap 11 on the test pen itself 1 are made of transparent material, the handle and cap 11 on the test pen itself 1 will not affect the value on the digital display screen 8 and the color of the pluggable power bulb 9 when viewed manually.

[0032] Preferably, the reinforcing component 12 includes a fixing ring 1201 sleeved on the outside of the cap 11. Multiple plug-in plates 1202 are fixedly installed in a circular array at the bottom of the fixing ring 1201. An annular groove 1203 is provided on the outer side wall of the detection pen itself 1 near the tail. The protrusion on one side of the plug-in plate 1202 is engaged with the annular groove 1203. Multiple limiting blocks 1204 are fixedly installed in a circular array on the outer side wall of the cap 11. The limiting blocks 1204 are located between two plug-in plates 1202.

[0033] Specifically, after manually screwing the cap 11 onto the test pen itself 1, the manual moves the fixing ring 1201 toward the test pen itself 1, so that the protrusion of the plug plate 1202 can engage with the annular groove 1203. Then, with the limiting cooperation of the limiting block 1204, the cap 11 can be stably fixed on the test pen itself 1, thereby improving the fixing effect of the test pen itself 1.

[0034] In this embodiment: a locking mechanism is provided on the handle of the detection pen itself 1, and the locking mechanism is in contact with the circuit board 7. The locking mechanism includes a screw hole 13 opened on the handle of the detection pen itself 1, a screw 5 is threaded on the inner side of the screw hole 13, and the screw end of the screw 5 is in contact with the circuit board 7.

[0035] The present invention provides a technical solution in which the screw 5 is manually screwed into the screw hole 13 and the screw end contacts the circuit board 7, thereby fixing and limiting the circuit board 7 in the mounting slot 6, so that the circuit board 7 can be stably fixed in the test pen itself 1.

[0036] 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 detection pen with digital display pulse signal strength detection function, characterized in that, include: The detection pen itself (1), a clip (2) disposed on one side of the detection pen itself (1), and a probe (3) fixedly connected to the clip (2); A wire mechanism (4) is provided on the detection pen itself (1), and the clip (2) is connected to the detection pen itself (1) through the wire mechanism (4); A mounting slot (6) is provided on the handle of the testing pen itself (1); The circuit board (7) is located inside the mounting slot (6); A digital display screen (8) is mounted on the main circuit board (7); A pluggable power bulb (9) is provided at the tail of the detection pen itself (1); A connecting thread (10) is provided at the tail of the detection pen itself (1); The cap (11) on the tail of the test pen itself (1) is threaded through the connecting thread (10); And a reinforcement component (12) disposed on the outside of the cap (11) for reinforcing the cap (11).

2. The circuit detection pen with digital display pulse signal strength detection function according to claim 1, characterized in that: The wire mechanism (4) includes a first connecting wire (41) fixedly connected to the circuit board (7), and one end of the first connecting wire (41) passes through one side wall of the detection pen itself (1) and is fixedly connected to a wire connector (42). A second connecting wire (43) is fixedly connected to the clip (2), and a wire plug (44) is fixedly connected to the other end of the second connecting wire (43), and the wire plug (44) is inserted into the wire connector (42).

3. The circuit detection pen with digital display pulse signal strength detection function according to claim 1, characterized in that: The handle and cap (11) of the detection pen itself (1) are both made of transparent material.

4. The circuit detection pen with digital display pulse signal strength detection function according to claim 1, characterized in that: The detection pen itself (1) has a locking mechanism on the handle, and the locking mechanism is in contact with the circuit board (7).

5. The circuit detection pen with digital display pulse signal strength detection function according to claim 4, characterized in that: The locking mechanism includes a screw hole (13) opened at the handle of the test pen itself (1), and a screw (5) is threaded on the inner side of the screw hole (13), and the screw end of the screw (5) is in contact with the circuit board (7).

6. The circuit detection pen with digital display pulse signal strength detection function according to claim 1, characterized in that: The reinforcement component (12) includes a fixing ring (1201) sleeved on the outside of the cap (11). Multiple plug-in plates (1202) are fixedly installed in a circular array at the bottom of the fixing ring (1201). An annular groove (1203) is provided on the outer side wall of the detection pen (1) near the tail. The protrusion on one side of the plug-in plate (1202) is engaged with the annular groove (1203). Multiple limiting blocks (1204) are fixedly installed in a circular array on the outer side wall of the cap (11), and the limiting blocks (1204) are located in the middle position of the two plug plates (1202).

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