Circuit inspector
By incorporating a limit component and a second spring into the circuit tester, the problem of the test pen probe becoming loose when used as a screwdriver is resolved, ensuring that the test pen can properly test circuits in screwdriver mode.
Patent Information
- Application Number
- CN202423277348.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-30
AI Technical Summary
When the test pen probe is used as a screwdriver, it is easy to loosen, causing the probe to not make contact with the resistor and thus failing to achieve effective detection.
A circuit checker was designed. By setting a limiting component and a second spring between the probe and the pen body, the probe is kept in contact with the resistor to prevent loosening. An adjustment unit ensures that the metal plate is in contact with the resistor to achieve a current path.
This design ensures that the probe remains in constant contact with the resistor when used as a screwdriver, guaranteeing that the test pen can properly test the circuit and preventing test failures caused by looseness.
Smart Images
Figure CN223742543U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electric technology field, especially a circuit checker. BACKGROUND
[0002] The test pen is also called electricity measuring pen, and is short for electricity pen. It is an electrician tool used to test whether the wire is electrified. The pen body has a neon bubble. When testing, if the neon bubble emits light, it indicates that the wire is electrified or is a live wire. The pen tip and tail of the test pen are made of metal material, and the pen holder is made of insulating material. When using the test pen, the metal part at the tail end of the test pen must be touched by hand. Otherwise, the neon bubble in the test pen will not emit light because the electrified body, test pen, human body and ground do not form a loop, resulting in misjudgment that the electrified body is not electrified.
[0003] The test pen can sometimes be used as a screwdriver, but the probe of the test pen is generally fixed inside the pen body. When used as a screwdriver, the probe is extremely easy to loosen, resulting in the probe not contacting the resistor and the test pen being unable to detect. UTILITY MODEL CONTENTS
[0004] In view of the above technical problems of the prior art, the utility model is proposed.
[0005] The utility model aims to provide a circuit checker, which aims to solve the problem that the probe of the test pen is extremely easy to loosen when used as a screwdriver, resulting in the probe not contacting the resistor and the test pen being unable to detect.
[0006] To solve the above technical problems, the utility model provides the following technical scheme: a circuit checker, comprising a detection unit, including a pen body, a first spring arranged in the inner cavity of the pen body, a metal end cap and a neon tube arranged at both ends of the first spring respectively, a resistor arranged at one end of the neon tube, and a probe arranged at one end of the resistor;
[0007] An adjusting unit, comprising a limiting component arranged between the probe and the pen body, a metal sheet arranged at one end of the probe, and a second spring arranged between the metal sheet and the pen body.
[0008] As a preferred scheme of the utility model circuit checker, the limiting component comprises a limiting groove arranged in the inner cavity of the pen body, and a limiting block arranged on the outer wall of the probe.
[0009] As a preferred scheme of the utility model circuit checker, the probe and the pen body are connected by sliding.
[0010] As a preferred scheme of the utility model circuit checker, the limiting block slides in the limiting groove.
[0011] As a preferred scheme of the circuit checker of the utility model, wherein: one side of the probe and the metal sheet is fixedly connected
[0012] As a preferred scheme of the circuit checker of the utility model, wherein: further comprising,
[0013] The connecting unit comprises a connecting assembly and a guide assembly arranged at one end of the connecting assembly.
[0014] As a preferred scheme of the circuit checker of the utility model, wherein: the connecting assembly comprises a connecting sleeve, an elastic clamping block arranged at one end of the connecting sleeve, and a clamping groove arranged on the outer wall of the pen body.
[0015] As a preferred scheme of the circuit checker of the utility model, wherein: the two sides of the clamping groove are provided with arc surfaces.
[0016] As a preferred scheme of the circuit checker of the utility model, wherein: the guide assembly comprises a guide block, an insertion plate arranged on the inner wall of the guide block, a push block arranged on the inner wall of the guide block, a third spring arranged between the insertion plate and the guide block, and a trigger arranged between the push block and the connecting sleeve.
[0017] As a preferred scheme of the circuit checker of the utility model, wherein: the trigger comprises a sleeve ring slidingly arranged on the outer wall of the connecting sleeve, a hook plate rotatably arranged in the inner cavity of the sleeve ring, a clamping block arranged on the outer wall of the connecting sleeve, an elastic member arranged between the hook plate and the connecting sleeve, and a connecting rod arranged between the sleeve ring and the push block.
[0018] The circuit checker has the beneficial effects that the probe and the pen body cannot rotate relative to each other, the screwdriver effect is realized, the second spring is arranged to press the metal sheet into the inner cavity of the pen body, the metal sheet is always in contact with the resistor, the current path is realized, and the probe and the resistor are not in contact after the electric pen is used as a screwdriver, so that the detection effect cannot be realized. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.
[0020] Figure 1 It is a structural schematic view of the utility model.
[0021] Figure 2The utility model discloses a structure explosion map.
[0022] Figure 3 It is the structure explosion map of detection unit.
[0023] Figure 4 It is the partial structure section view of connecting unit. Specific embodiment
[0024] In order to make the above -mentioned purpose, feature and advantage of the utility model can be more obvious and easy to understand, the specific embodiment of the utility model is explained in detail with the drawings of the specification below.
[0025] In the following description, a lot of specific details are set forth in order to facilitate a full understanding of the utility model, but the utility model can also be implemented in other ways different from this description, and those skilled in the art can make similar generalization without departing from the connotation of the utility model, therefore the utility model is not limited to the specific embodiments disclosed below.
[0026] Secondly, the "one embodiment" or "embodiment" referred to here can include specific features, structures or characteristics in at least one implementation of the utility model. "In one embodiment" does not refer to the same embodiment in different places in this specification, and is not an embodiment that is independent or selectively excluded from other embodiments.
[0027] Embodiment 1
[0028] Reference Figure 1 - Figure 4 The embodiment provides a detection unit 1, including pen body 11, first spring 12 arranged in the inner chamber of pen body 11, metal end cap 13 and neon tube 14 arranged at the both ends of first spring 12 respectively, resistance 15 arranged at one end of neon tube 14 and probe 16 arranged at one end of resistance 15;
[0029] Adjusting unit 2, including spacing assembly 21 opened between probe 16 and pen body 11, metal sheet 22 arranged at one end of probe 16 and second spring 23 arranged between metal sheet 22 and pen body 11;
[0030] Spacing assembly 21, including spacing slot 211 opened in the inner chamber of pen body 11 and spacing block 212 arranged on the outer wall of probe 16;
[0031] Further, probe 16 and pen body 11 are slidingly connected.
[0032] Further, spacing block 212 slides in spacing slot 211.
[0033] Further, probe 16 and one side of metal sheet 22 are fixedly connected.
[0034] It should be noted that one end of the pen body 11 is provided with a probe 16, and then placed in order with a resistor 15, a neon tube 14, and a first spring 12, and a metal cap 13 is threadedly connected to the top of the pen body 11;
[0035] The outer wall of the probe 16 is fixedly connected with a limiting block 212, the limiting block 212 slides in a limiting groove 211 opened in the inner cavity of the pen body 11, the probe 16 and the pen body 11 are in sliding connection, and a metal sheet 22 is fixedly connected to one end of the probe 16, and the metal sheet 22 and the pen body 11 are placed with a second spring 23.
[0036] In use, when the checker achieves the checking effect, by contacting the probe with the detection point, the current passes through the resistor to reduce the voltage, and the neon tube 14 is lit to achieve the checking; when the screwdriver effect needs to be achieved, the probe 16 cannot be rotated under the limiting action of the limiting assembly 21, the effect of the screwdriver is achieved, and the second spring 23 is arranged to press the metal sheet 22 into the inner cavity of the pen body 11, so that the metal sheet 22 is always in contact with the resistor 15, and the current path is realized.
[0037] In summary, by arranging the second spring 23 to press the metal sheet 22 into the inner cavity of the pen body 11, the metal sheet 22 is always in contact with the resistor 15, and the current path is realized, so that the probe and the resistor are not in contact after the electric pen is used as a screwdriver, and the detection effect cannot be realized.
[0038] As shown in Figure 1 - Figure 4 As an optional embodiment, the connecting unit 3 includes a connecting assembly 31 and a guide assembly 32 arranged at one end of the connecting assembly 31.
[0039] The connecting assembly 31 includes a connecting sleeve 311, elastic clamping blocks 312 arranged at one end of the connecting sleeve 311, and clamping grooves 313 opened in the outer wall of the pen body 11.
[0040] The two sides of the clamping groove 313 are provided with arc surfaces
[0041] It should be noted that the top of the connecting sleeve 311 is fixedly connected with a plurality of elastic clamping blocks 312, when the probe 16 is inserted into the inner cavity of the connecting sleeve 311, the elastic clamping blocks 312 are clamped into the clamping grooves 313 opened in the outer wall of the pen body 11, the installation of the guide assembly 32 is realized, and the connecting sleeve 311 is rotated, which drives the elastic clamping blocks 312 to slide along the arc surfaces of the clamping grooves 313 to realize disassembly.
[0042] As shown in Figure 1 - Figure 4As shown, as an optional embodiment: the guide assembly 32 comprises a guide block 321, an insertion plate 322 arranged on the inner wall of the guide block 321, and a pushing block 323 arranged on the inner wall of the guide block 321, a third spring 324 arranged between the insertion plate 322 and the guide block 321, and a trigger 325 arranged between the pushing block 323 and the connecting sleeve 311.
[0043] Further, the trigger 325 comprises a sleeve ring 3251 slidingly arranged on the outer wall of the connecting sleeve 311, a hook plate 3252 rotatably arranged in the inner cavity of the sleeve ring 3251, a clamping block 3253 arranged on the outer wall of the connecting sleeve 311, an elastic member 3254 arranged between the hook plate 3252 and the connecting sleeve 311, and a connecting rod 3255 arranged between the sleeve ring 3251 and the pushing block 323.
[0044] It should be noted that the guide block 321 is fixedly connected to one end of the connecting sleeve 311, the inner wall of the guide block 321 is slidingly connected with the insertion plate 322, the insertion plate 322 is used for fixing the wire, and the inner wall of the guide block 321 is also slidingly connected with the pushing block 323, one side of the pushing block 323 is provided with an inclined surface, the inclined surface is arranged to push the insertion plate 322 to slide, and the third spring 324 is arranged between the insertion plate 322 and the guide block 321.
[0045] The outer wall of the connecting sleeve 311 is slidingly connected with the sleeve ring 3251, the inner cavity of the sleeve ring 3251 is rotatably connected with the hook plate 3252, the clamping block 3253 is fixedly connected to the outer wall of the connecting sleeve 311, the elastic member 3254 is arranged between the hook plate 3252 and the connecting sleeve 311, the elastic member 3254 is preferably a spring, and the connecting rod 3255 is fixedly connected between the sleeve ring 3251 and the pushing block 323.
[0046] In use, the wire is inserted into the guide block 321, under the guidance of the inner cavity of the guide block 321, the top end of the wire is in contact with the probe 16, then the sleeve ring 3251 is pushed forward, the hook plate 3252 is clamped in the clamping block 3253, in the process of sliding of the sleeve ring 3251, the pushing block 323 is pushed by the connecting rod 3255 to extrude the insertion plate 322 to slide, and the wire is clamped, then the operator presses the metal cap 13 to detect the circuit, thereby solving the problem that the exposed area of the wire is small when the wire is detected, and the difficulty of aligning the exposed wire by the probe is too high.
[0047] Importantly, the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.
Claims
1. A circuit checker characterized by: The utility model relates to a circuit checker, including, Detection unit (1), including pen body (11), first spring (12) of setting in the inner chamber of pen body (11), metal end cap (13) and neon tube (14) are arranged respectively in both ends of first spring (12), resistance (15) is arranged in one end of neon tube (14), and probe (16) is arranged in one end of resistance (15), Adjusting unit (2), including spacing assembly (21) of being opened between probe (16) and pen body (11), metal sheet (22) is arranged in one end of probe (16), and second spring (23) is arranged between metal sheet (22) and pen body (11).
2. The circuit checker of claim 1, wherein: The spacing assembly (21) comprises a spacing groove (211) opened in the inner chamber of the pen body (11), and a spacing block (212) arranged on the outer wall of the probe (16).
3. The circuit checker of claim 1, wherein: The probe (16) and the pen body (11) are connected by sliding.
4. The circuit checker of claim 2, wherein: The spacing block (212) slides in the spacing groove (211).
5. The circuit checker of claim 1, wherein: One side of the probe (16) and the metal sheet (22) is fixedly connected.
6. The circuit inspector of claim 1, wherein: Further comprising, Connecting unit (3), including connecting assembly (31), and guide assembly (32) is arranged in one end of connecting assembly (31).
7. The circuit checker of claim 6, wherein: The connecting assembly (31) comprises a connecting sleeve (311), an elastic clamping block (312) arranged in one end of the connecting sleeve (311), and a clamping groove (313) opened on the outer wall of the pen body (11).
8. The circuit checker of claim 7, wherein: The clamping groove (313) is provided with an arc surface on both sides.
9. The circuit checker of claim 7, wherein: The guide assembly (32) comprises a guide block (321), an insertion plate (322) arranged on the inner wall of the guide block (321), a push block (323) arranged on the inner wall of the guide block (321), a third spring (324) arranged between the insertion plate (322) and the guide block (321), and a trigger (325) arranged between the push block (323) and the connecting sleeve (311).
10. The circuit checker of claim 9, wherein: The trigger (325) comprises a sleeve ring (3251) slidingly arranged on the outer wall of the connecting sleeve (311), a hook plate (3252) rotatably arranged in the inner cavity of the sleeve ring (3251), a clamping block (3253) arranged on the outer wall of the connecting sleeve (311), an elastic member (3254) arranged between the hook plate (3252) and the connecting sleeve (311), and a connecting rod (3255) arranged between the sleeve ring (3251) and the push block (323).