Screwdriver with electricity measuring structure

Abstract

The utility model relates to the field of screwdrivers, and discloses a screwdriver with an electricity measuring structure, which comprises a handle, a tool bit, a neon tube and a clamping head, the left side and the right side of the handle are penetrated to form a mounting cavity, the left end of the handle is clamped with a buckling head, a metal sheet is embedded in the left end of the buckling head, and the left end of the buckling head is provided with a clamping groove. A metal spring, a neon tube and a resistor are sequentially arranged in the mounting cavity from left to right in an abutting mode, the left end of the metal spring abuts against the metal sheet, a placement block is integrally formed at the right end of the handle, the front end of the placement block is in butt joint with a limiting block, and the limiting block and the placement block are sleeved with a clamping head; the left end of the tool bit is fixed between the limiting block and the placement block, the limiting block is movably arranged at the right end of the handle, the limiting block can be rapidly fixed to the placement block under the action of the clamping head, the rectangular head and the limiting head are arranged on the tool bit in a matched mode, mounting and dismounting of the tool bit can be rapidly completed, and then replacement of the tool bit is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of screwdrivers, in particular to a screwdriver with an electrical measuring structure. Background Art

[0002] During the installation and maintenance of automated instruments and meters, screwdrivers are often needed to disassemble and tighten circuits. To ensure safety, maintenance personnel must first use a voltage tester to test whether the circuit has power before using the screwdriver.

[0003] A Chinese utility model patent with publication number CN210071929U discloses a screwdriver with an electrical measurement warning function. The screwdriver mainly includes a screwdriver body and an electrical measurement device for detecting voltage. While realizing the screwdriver function, the screwdriver can also detect whether the circuit is energized and determine the voltage value of the energized circuit, which can better ensure the personal safety of maintenance personnel. The entire structure is also relatively simple and low-cost.

[0004] The inventors believe that the aforementioned related art suffers from the following drawbacks: screwdrivers are available in various models based on the shape and structure of their front-end blades to accommodate a variety of screw sizes. However, in these structures, the blade and handle are integrated, making it difficult to replace the blade as needed. Furthermore, if the blade breaks, the entire screwdriver and its corresponding electrical measurement structure become inoperable. Therefore, they designed a screwdriver with an electrical measurement structure. Utility Model Content

[0005] In order to solve the technical problems of not being able to be used normally after a cutter head is broken and detecting whether a circuit is energized, the utility model provides a screwdriver with an electrical detection structure.

[0006] The utility model is implemented by the following technical solution: a screwdriver with an electrical measurement structure, comprising a handle, a blade, a neon tube, and a clamping joint. Mounting cavities are formed on both sides of the handle. The handle is transparent as a whole, and the left end of the handle is clamped with a clamping joint. The left end of the clamping joint is embedded with a metal sheet. A metal spring, a neon tube, and a resistor are sequentially abutted inside the mounting cavity from left to right, and the left end of the metal spring abuts the metal sheet.

[0007] The right end of the handle is integrally formed with a placement block, the front end of the placement block is docked with a limit block, and the limit block and the placement block are externally sleeved with a card joint, and the left end of the blade head is fixed between the limit block and the placement block.

[0008] As a further improvement to the above solution, a stabilizing block is integrally formed at the right end of the placement block, and the cross section of the stabilizing block is an L-shaped structure;

[0009] The right end of the limit block is integrally formed with a pressing block. The structures of the limit block and the pressing block are consistent with those of the placement block and the stabilization block, and a rectangular hole is formed between the pressing block and the limit block. There is a hole groove with a rectangular structure between the pressing block and the limit block. The rectangular head of the cutter head can be clamped in the rectangular hole, which increases the contact area between the two and improves the firmness.

[0010] As a further improvement of the above-mentioned solution, a contact head is fixed inside the placement block, and a limiting groove is arranged inside the contact head. The cross-section of the limiting groove is a circular structure, and a rectangular opening is opened on the right side of the limiting groove. The rectangular opening is exactly the same as the rectangular hole. The contact head is made of metal, and it is also tightly pressed with the resistor. The limiting head on the cutter head is clamped into the limiting groove so that it cannot move left and right, and at the same time, the cutter head, contact head and resistor can form a complete circuit.

[0011] As a further improvement of the above-mentioned solution, a rectangular head is integrally formed on the left end of the cutter head, and a circular limit head is integrally formed on the left end of the rectangular head. The limit head is clamped in the limit groove, and the rectangular head is placed in the rectangular hole and the rectangular opening. The limit head on the cutter head is clamped in the limit groove so that it cannot move left and right, and the rectangular head can limit the circumferential rotation of the cutter head, thereby ensuring that the cutter head will not shake.

[0012] As a further improvement of the above scheme, the outer surface of the placement block is provided with two mutually arc-shaped protrusions, and the shape and size of the inner wall of the clamping joint match the shape and size of the combination of the placement block and the limit block. The design of the arc-shaped protrusion can increase the volume of the placement block, and then increase the contact surface between the placement block and the clamping joint, thereby improving the firmness of the connection between the two.

[0013] As a further improvement of the above solution, the left end of the handle is integrally formed with a raised structure that is completely consistent with the combination of the placement block and the limit block, and a buckle joint is sleeved on the raised structure. The buckle joint structure is consistent with the card joint, and the buckle joint can be pulled outward, thereby facilitating the replacement and installation of electronic components inside the installation cavity of the handle.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. By setting a metal spring, a resistor and a neon tube inside the handle, combined with the blade and contact head, the screwdriver can also function as an electrician's tester, which is highly practical and does not require carrying multiple tools at the same time, thus improving portability.

[0016] 2. By movably setting a limit block at the right end of the handle, the limit block can be quickly fixed on the placement block under the action of the clamping joint. Cooperating with the rectangular head and the limit head set on the cutter head, the installation and disassembly of the cutter head can be quickly completed, thereby facilitating the replacement of the cutter head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a screwdriver with an electrical measurement structure provided by the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure in which the card connector and the limit block are not installed;

[0019] Figure 3 for Figure 1 Schematic diagram of the internal structure of the middle handle;

[0020] Figure 4 for Figure 1 Schematic diagram of the structure of the placement block and card connector.

[0021] Description of main symbols:

[0022] 1. Handle; 11. Mounting cavity; 2. Snap joint; 21. Metal sheet; 3. Card joint; 4. Limit block; 41. Pressing block; 5. Placement block; 51. Stabilizing block; 52. Arc-shaped protrusion; 6. Cutting head; 61. Rectangular head; 62. Limiting head; 7. Contact head; 71. Limiting groove; 72. Rectangular opening; 8. Resistor; 81. Neon tube; 82. Metal spring. DETAILED DESCRIPTION

[0023] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example:

[0025] Please combine Figure 1-Figure 4 The present embodiment provides a screwdriver with an electrical measurement structure, comprising a handle 1, a bit 6, a neon tube 81, and a snap connector 3. Mounting cavities 11 are formed on both sides of the handle 1. The handle 1 is transparent to facilitate observation of changes in the internal neon tube 81. A snap connector 2 is snapped onto the left end of the handle 1. A metal sheet 21 is embedded in the left end of the snap connector 2. A metal spring 82, a neon tube 81, and a resistor 8 are sequentially abutted within the mounting cavity 11 from left to right. The left end of the metal spring 82 abuts against the metal sheet 21.

[0026] The right end of the handle 1 is integrally formed with a placement block 5, the front end of the placement block 5 is docked with the limit block 4, and the limit block 4 and the placement block 5 are externally sleeved with a card joint 3, and the left end of the blade head 6 is fixed between the limit block 4 and the placement block 5.

[0027] The right end of the placement block 5 is integrally formed with a stabilizing block 51, and the cross section of the stabilizing block 51 is an L-shaped structure;

[0028] The right end of the limit block 4 is integrally formed with a pressing block 41. The structures of the limit block 4 and the pressing block 41 are consistent with the structures of the placement block 5 and the stabilization block 51, and a rectangular hole is formed between the pressing block 41 and the limit block 4. There is a hole groove with a rectangular structure between the pressing block 41 and the limit block 4. The rectangular head 61 of the cutter head 6 can be snapped into the rectangular hole, which increases the contact area between the two and improves the firmness.

[0029] A contact head 7 is fixed inside the placement block 5, and a limiting groove 71 is set inside the contact head 7. The cross-section of the limiting groove 71 is a circular structure, and a rectangular opening 72 is opened on the right side of the limiting groove 71. The rectangular opening 72 is exactly the same as the rectangular hole. The contact head 7 is made of metal, and it is also tightly pressed with the resistor 8. The limiting head 62 on the cutter head 6 is snapped into the limiting groove 71 so that it cannot move left and right, and can enable the cutter head 6, the contact head 7 and the resistor 8 to form a complete circuit.

[0030] The left end of the cutter head 6 is integrally formed with a rectangular head 61, and the left end of the rectangular head 61 is integrally formed with a circular limit head 62. The limit head 62 is clamped in the limit groove 71, and the rectangular head 61 is placed in the rectangular hole and the rectangular opening 72. The limit head 62 on the cutter head 6 is clamped in the limit groove 71 so that it cannot move left and right, and the rectangular head 61 can limit the circumferential rotation of the cutter head 6, thereby ensuring that the cutter head 6 will not shake.

[0031] The outer surface of the placement block 5 is provided with two mutually arc-shaped protrusions 52. The shape and size of the inner wall of the clamping joint 3 match the shape and size of the combination of the placement block 5 and the limit block 4. The design of the arc-shaped protrusion 52 can increase the volume of the placement block 5, and then increase the contact surface between the placement block 5 and the clamping joint, thereby improving the firmness of the connection between the two.

[0032] The left end of the handle 1 is integrally formed with a raised structure that is completely identical to the combination of the placement block 5 and the limit block 4, and a snap joint 2 is sleeved on the raised structure. The structure of the snap joint 2 is consistent with the card joint 3, and the snap joint 2 can be pulled outward, thereby facilitating the replacement and installation of electronic components inside the installation cavity 11 of the handle 1.

[0033] The implementation principle of a screwdriver with a voltage measuring structure in the embodiment of the present application is as follows: in actual use, the screwdriver bit 6 is screwed into contact with the wire on the line, and the user's thumb is in contact with the metal sheet 21 on the buckle connector 2. At this time, the voltage on the charged body passes through the test pen's bit 6, neon tube 81, resistor 8, metal spring 82 and metal sheet 21, and then through the human body to the ground to form a circuit. The neon tube 81 in the screwdriver turns back to light, and then it can be tested whether it is charged. When the neon tube 81, resistor 8, and metal spring 82 fail and need to be replaced, it is only necessary to unplug the buckle connector 2 from the left end of the handle 1 and then replace the tube, resistor 8, or metal spring 82 that needs to be replaced.

[0034] When the cutter head 6 is broken and needs to be replaced, the clamping joint 3 is moved to the right with force and removed. At this time, the limit of the limit block 4 will be released, and the limit block 4 and the pressing block 41 can be taken off from the placement block 5. Then the previous cutter head 6 is removed, and the limit head 62 of the new cutter head 6 is placed in the limit groove 71 and the rectangular head 61 is placed in the rectangular opening 72. Then the limit block 4 is clamped on the cutter head 6, and finally the clamping joint 3 is clamped between the limit block 4 and the placement block 5 again.

[0035] By arranging a metal spring 82, a resistor 8 and a neon tube 81 inside the handle 1, and cooperating with the blade 6 and the contact head 7, the screwdriver can also function as an electrician's tester, which is highly practical and does not require carrying multiple tools at the same time when in use, thereby improving portability;

[0036] By movably setting a limit block 4 at the right end of the handle 1, the limit block 4 can be quickly fixed on the placement block 5 under the action of the clamping joint 3, and cooperate with the rectangular head 61 and the limit head 62 set on the cutter head 6 to quickly complete the installation and disassembly of the cutter head 6, thereby facilitating the replacement of the cutter head 6.

[0037] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A screwdriver with an electrical measuring structure, comprising a handle (1), a cutter head (6), a neon tube (81) and a card connector (3), characterized in that: The handle (1) is provided with a mounting cavity (11) formed through the left and right sides thereof, and a buckle joint (2) is clamped at the left end of the handle (1), a metal sheet (21) is embedded in the left end of the buckle joint (2), and a metal spring (82), a neon tube (81) and a resistor (8) are sequentially abutted in the mounting cavity (11) from left to right, and the left end of the metal spring (82) abuts against the metal sheet (21); The right end of the handle (1) is integrally formed with a placement block (5), the front end of the placement block (5) is butted against a limit block (4), and a clamping joint (3) is sleeved on the outside of the limit block (4) and the placement block (5), and the left end of the blade head (6) is fixed between the limit block (4) and the placement block (5).

2. A screwdriver with an electrical measuring structure as claimed in claim 1, characterized in that: A stabilizing block (51) is integrally formed at the right end of the placement block (5), and the cross section of the stabilizing block (51) is an L-shaped structure; A pressing block (41) is integrally formed at the right end of the limiting block (4); the structures of the limiting block (4) and the pressing block (41) are consistent with the structures of the placement block (5) and the stabilizing block (51); and a rectangular hole is formed between the pressing block (41) and the limiting block (4).

3. A screwdriver with an electrical measuring structure as claimed in claim 2, characterized in that: A contact head (7) is fixed inside the placement block (5), a limiting groove (71) is arranged inside the contact head (7), the limiting groove (71) has a circular cross-section, a rectangular opening (72) is opened on the right side of the limiting groove (71), and the rectangular opening (72) is completely the same as the rectangular hole.

4. A screwdriver with an electrical measuring structure as claimed in claim 3, characterized in that: The left end of the cutter head (6) is integrally formed with a rectangular head (61), and the left end of the rectangular head (61) is integrally formed with a limiting head (62) of a circular structure, the limiting head (62) is clamped in the limiting groove (71), and the rectangular head (61) is placed in the rectangular hole and the rectangular opening (72).

5. A screwdriver with an electrical measuring structure as claimed in claim 1, characterized in that: The outer surface of the placement block (5) is provided with two mutually arc-shaped protrusions (53), and the shape and size of the inner wall of the clamping joint (3) match the shape and size of the combination of the placement block (5) and the limit block (4).

6. A screwdriver with an electrical measuring structure as claimed in claim 5, characterized in that: The left end of the handle (1) is integrally formed with a raised structure which is completely consistent with the placement block (5) and the limit block (4) after combination, and a buckle joint (2) is sleeved on the raised structure, and the buckle joint (2) has the same structure as the clamping joint (3).

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