Electroprobe with extension function

Abstract

The utility model relates to the technical field of electroprobes, in particular to an electroprobe with an extension function, which comprises an electroprobe shell and an electroprobe body, the electroprobe body is positioned on the inner wall of the electroprobe shell and is in sliding connection with the electroprobe shell, one end of the electroprobe body is fixedly connected with a connecting block, and one end of the connecting block far away from the electroprobe body is fixedly connected with a measuring pen point. Compared with the prior art, by arranging the electroprobe shell, the spring, the spring rotating shaft, the rotating rod and the transverse block, when the electroprobe needs to be extended, the connecting block is pushed, so that the electroprobe body compresses the spring, the transverse block is pushed out of the second transverse groove, and then under the action of the spring rotating shaft, the transverse block rebounds and corresponds to the first transverse groove; the electroprobe body is popped up under the action of the spring, extension of the electroprobe is realized, and when a circuit needs to be detected, the electroprobe body does not move under the action of the elastic force of the spring, so that the detection of the circuit is more accurate, and the technical problem of inaccurate measurement is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric pen technical field, concretely is an electric pen with extension function. BACKGROUND

[0002] Electric pen is a common electrician's tool, it can be used to detect voltage, current, resistance and other parameters in the circuit. The principle of electric pen is to use the action of electric field, through the current in the circuit to produce electric field, so that the electric pen emits sound or light, to prompt the voltage, current and other parameters in the circuit. The main components of electric pen include battery, circuit board, capacitor, light emitting diode, etc. When electric pen contacts the power supply or electrical appliance in the circuit, the current in the circuit will pass through the circuit board and capacitor of electric pen, thereby generating electric field.

[0003] The prior art with publication number CN201945624U relates to a downhole folding electric pen. It is internally provided with an electric pen circuit in a transparent cylindrical telescopic rod, a metal contact for contacting hands is installed on the outermost cylinder, and a metal probe is installed at the bottom end. In use, the telescopic rod is extended, the hands press the metal contact, and the metal probe measures the electric wire; when not in use, the telescopic rod is shortened. It is convenient for downhole workers to carry and use.

[0004] Through the above setting, the electric pen of the prior art is internally provided with an electric pen circuit in a transparent cylindrical telescopic rod, a metal contact for contacting hands is installed on the outermost cylinder, and a metal probe is installed at the bottom end. The downhole folding electric pen, the electric pen can be used as an ordinary electric pen, and can be folded, convenient to carry.

[0005] However, the electric pen of the prior art has the following defects when in operation:

[0006] The electric pen of the prior art needs to be elongated when in use, but when detecting the circuit, the telescopic rod is not fixed, which causes the electric pen to be in a state of coming and going, which is inconvenient for detecting the circuit, and the coming and going of the electric pen also causes the internal parts and lines to vibrate, which easily leads to inaccurate measurement. UTILITY MODEL CONTENTS

[0007] The utility model intends to provide an electric pen with extension function, which is mainly used to solve the technical problems that the telescopic rod cannot be fixed in the prior art, which easily leads to the telescopic rod coming and going during measurement, and easily leads to inaccurate measurement.

[0008] To solve the above technical problems, the utility model provides the following technical scheme:

[0009] An extended-function electric pen includes a pen shell and a pen body. The pen body is slidably connected to the inner wall of the pen shell. A connecting block is fixedly connected to one end of the pen body, and a measuring pen tip is fixedly connected to the end of the connecting block away from the pen body. A first transverse groove is formed in the inner wall of the pen shell. A rotating rod is rotatably connected to one end of the pen body. A spring is sleeved on the outer wall of the rotating rod. One end of the spring is fixedly connected to one end of the pen body, and the other end of the spring is fixedly connected to the inner wall of the pen shell. A cross block matching the first transverse groove is fixedly connected to one end of the rotating rod passing through the first transverse groove. A second transverse groove is formed in one end of the pen shell, and the cross block abuts against the inner wall of the second transverse groove.

[0010] The working principle and beneficial effects of this utility model:

[0011] 1. Working Principle: When extending the test pen, first rotate the protective cover to disengage it from the threaded groove. Then, push the connecting block to insert it into the test pen housing, simultaneously disengaging the horizontal block from the second horizontal groove. Under the action of the spring shaft, the horizontal block rotates 90 degrees to align with the first horizontal groove. Then, release the connecting block. At this point, under the action of the spring, the test pen body moves, driving the rotating rod and the horizontal block into the test pen housing. The test pen can then be used for measurement. When retracting the test pen, first push the connecting block to retract the test pen body and the connecting block into the test pen housing. At this point, the horizontal block pushes the rotating rod to move, which in turn pushes the horizontal block out of the first horizontal groove. Then, rotate the horizontal block to align it with the second horizontal groove. Finally, release the connecting block, allowing the horizontal block to engage with the second horizontal groove under the spring force, completing the retraction.

[0012] 2. Beneficial effects:

[0013] Existing technology uses a test pen with its circuitry installed inside a transparent cylindrical telescopic rod. The outermost cylinder has metal contacts for hand contact, and the bottom has a metal probe. This downhole folding test pen can be used as a regular test pen and is easy to carry due to its folding design. However, existing test pens require extension during use. Because the telescopic rod is not fixed in place, the pen is constantly extending and retracting, making circuit testing inconvenient. Furthermore, this constant extension and retraction can damage internal components and wiring. Oscillations can easily lead to inaccurate measurements. This solution addresses this by incorporating a test pen shell, spring, spring shaft, rotating rod, and horizontal block. When the test pen needs to be extended, pushing the connecting block compresses the spring, pushing the horizontal block out of the second horizontal slot. Then, under the action of the spring shaft, the horizontal block rebounds and aligns with the first horizontal slot, ejecting the test pen body under the spring's force. This achieves the extension of the test pen. Furthermore, when circuit testing is required, the spring force prevents the test pen body from moving, making circuit testing more accurate and avoiding the technical problem of inaccurate measurements.

[0014] Preferably, a spring shaft is fixedly connected to one end of the test pen body inside the test pen shell, and one end of the spring shaft is fixedly connected to one end of the rotating rod. By setting the spring shaft, the horizontal block can be prevented from rotating under the action of gravity when the test pen is extended, preventing the test pen body from failing to retract, and making the retraction of the test pen body more convenient and quick.

[0015] Preferably, the end of the test pen shell furthest from the measuring tip has a threaded groove, and a protective cover is threaded onto the inner wall of the groove. The inner wall of the protective cover abuts against one end of the test pen shell. By providing the protective cover, the retracted test pen body can be blocked, preventing workers from accidentally pushing the measuring tip and causing the horizontal block to disengage from the second horizontal groove, and preventing the horizontal block from rotating through the spring shaft, which would cause the test pen body to automatically spring open.

[0016] Preferably, the outer wall of the test pen casing has a rotating groove, the inner wall of which is rotatably connected to a rotating ring. A first connecting ring is fixedly connected to the outer wall of the rotating ring, and a second connecting ring is fixedly connected to the outer wall of the protective cover. A rubber rope is fixedly connected between the first and second connecting rings. By incorporating the rotating ring, the protective cover is prevented from becoming entangled in the rubber rope when rotated, thus avoiding the situation where the protective cover cannot be rotated.

[0017] Preferably, an indicator light is fixed to the outer wall of the connecting block, and the indicator light is electrically connected to the test pen body. By setting the indicator light, the test results of the circuit can be understood.

[0018] Preferably, the first and second transverse grooves are arranged in a cross shape. This facilitates limiting the movement of the transverse grooves and makes rotation easier.

[0019] Preferably, the outer wall of the protective cover has anti-slip texture. This increases the friction between the fingers and the protective cover, preventing the fingers from slipping. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the present utility model patent;

[0021] Figure 2 This is a cross-sectional structural diagram of the present utility model patent;

[0022] Figure 3 This utility model patent Figure 2 Structural diagram at point A;

[0023] Figure 4 This is a top view of the electric pen casing of this utility model patent.

[0024] The reference numerals in the accompanying drawings of the instruction manual include: 1. Test pen housing; 2. Test pen; 3. Measuring pen tip; 4. First horizontal groove; 5. Rotating rod; 6. Spring; 7. Horizontal block; 8. Second horizontal groove; 9. Spring shaft; 10. Threaded groove; 11. Protective cover; 12. Rotating groove; 13. Rotating ring; 14. First connecting ring; 15. Second connecting ring; 16. Rubber rope; 17. Connecting block; 18. Indicator light. Detailed Implementation

[0025] 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.

[0026] like Figures 1-4As shown, a power pen with an extension function includes a power pen shell 1 and a power pen body 2. The power pen body 2 is slidably connected to the inner wall of the power pen shell 1. A connecting block 17 is fixedly connected to one end of the power pen body 2, and a measuring pen tip 3 is fixedly connected to the end of the connecting block 17 away from the power pen body 2. An indicator light 18 is fixedly connected to the outer wall of the connecting block 17 and is electrically connected to the power pen body 2. A first transverse groove 4 is formed on the inner wall of the power pen shell 1. A rotating rod 5 is rotatably connected to one end of the power pen body 2. A spring shaft 9 is fixedly connected to one end of the power pen body 2 inside the power pen shell 1. One end of the spring shaft 9 is fixedly connected to one end of the rotating rod 5. A spring 6 is sleeved on the outer wall of the rotating rod 5, and one end of the spring 6 is fixedly connected to one end of the power pen body 2. The other end of the spring 6 is fixedly connected to the inner wall of the test pen shell 1. The end of the rotating rod 5 that passes through the first horizontal groove 4 is fixedly connected to a horizontal block 7 that matches the first horizontal groove 4. One end of the test pen shell 1 is provided with a second horizontal groove 8. The horizontal block 7 abuts against the inner wall of the second horizontal groove 8. One end away from the measuring pen tip 3 is provided with a threaded groove 10. The inner wall of the threaded groove 10 is threadedly connected to a protective cover 11. The inner wall of the protective cover 11 abuts against one end of the test pen shell 1. The outer wall of the test pen shell 1 is provided with a rotating groove 12. The inner wall of the rotating groove 12 is rotatably connected to a rotating ring 13. The outer wall of the rotating ring 13 is fixedly connected to a first connecting ring 14. The outer wall of the protective cover 11 is fixedly connected to a second connecting ring 15. A rubber rope 16 is fixedly connected between the first connecting ring 14 and the second connecting ring 15.

[0027] As can be seen from the above, the specific embodiments of this utility model are as follows:

[0028] When the test pen needs to be extended, first rotate the protective cover 11 to disengage it from the threaded groove 10. Then, push the connecting block 17 into the test pen housing 1, causing the test pen body 2 to compress the spring 6. Simultaneously, the test pen body 2 pushes the horizontal block 7 away from the second horizontal groove 8. Under the action of the spring pivot 9, the horizontal block 7 rotates 90 degrees to align with the first horizontal groove 4. Then, release the connecting block 17. At this point, under the action of the spring 6, the test pen body 2 moves, causing the pen body 2 to drive the rotating rod 5 and the horizontal block 7 into the test pen housing 1. Then, the test pen can be used for measurement. When the test pen needs to be retracted, first push the connecting block 17 so that the test pen body 2 and the connecting block 17 are retracted into the test pen shell 1. At this time, the horizontal block 7 will push the rotating rod 5 to move. The rotating rod 5 pushes the horizontal block 7 to move, pushing the horizontal block 7 out of the first horizontal groove 4. Then rotate the horizontal block 7 so that the horizontal block 7 corresponds to the second horizontal groove 8. Then release the connecting block 17 so that the horizontal block 7 is locked with the second horizontal groove 8 under the action of the spring 6. Then thread the protective cover 11 to the threaded groove 10 so that the inner wall of the protective cover 11 abuts against the horizontal block 7, completing the retraction.

[0029] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A power pen with an extension function, comprising a power pen shell (1) and a power pen body (2), characterized in that, The pen body (2) is slidably connected to the inner wall of the pen shell (1). A connecting block (17) is fixedly connected to one end of the pen body (2). A measuring pen tip (3) is fixedly connected to the end of the connecting block (17) away from the pen body (2). A first transverse groove (4) is opened on the inner wall of the pen shell (1). A rotating rod (5) is rotatably connected to one end of the pen body (2). A spring (6) is sleeved on the outer wall of the rotating rod (5). One end of the spring (6) is fixedly connected to one end of the pen body (2). The other end of the spring (6) is fixedly connected to the inner wall of the pen shell (1). A horizontal block (7) matching the first transverse groove (4) is fixedly connected to one end of the rotating rod (5) passing through the first transverse groove (4). A second transverse groove (8) is opened at one end of the pen shell (1). The horizontal block (7) abuts against the inner wall of the second transverse groove (8).

2. The electric pen with an extension function according to claim 1, characterized in that: The pen body (2) is located inside the pen shell (1) and a spring shaft (9) is fixedly connected to one end. One end of the spring shaft (9) is fixedly connected to one end of the rotating rod (5).

3. A power pen with an extension function according to claim 1, characterized in that: The end of the test pen housing (1) away from the measuring pen tip (3) is provided with a threaded groove (10), and a protective cover (11) is threadedly connected to the inner wall of the threaded groove (10). The inner wall of the protective cover (11) abuts against one end of the test pen housing (1).

4. A test pen with an extension function according to claim 1, characterized in that: The outer wall of the electric pen shell (1) is provided with a rotating groove (12), the inner wall of the rotating groove (12) is rotatably connected to a rotating ring (13), the outer wall of the rotating ring (13) is fixedly connected to a first connecting ring (14), the outer wall of the protective cover (11) is fixedly connected to a second connecting ring (15), and a rubber rope (16) is fixedly connected between the first connecting ring (14) and the second connecting ring (15).

5. A power pen with an extension function according to claim 1, characterized in that: An indicator light (18) is fixed to the outer wall of the connecting block (17), and the indicator light (18) is electrically connected to the body of the test pen (2).

6. A test pen with an extension function according to claim 1, characterized in that: The first transverse groove (4) and the second transverse groove (8) are arranged in a cross shape.

7. A power pen with an extension function according to claim 3, characterized in that: The outer wall of the protective cover (11) has anti-slip texture.

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