Combined secondary circuit checking screwdriver

Abstract

The utility model relates to the technical field of circuit detection, in particular to a combined secondary circuit checking screwdriver. Comprising a screw handle, a cavity for containing a battery is formed in the screw handle, an installation port is formed in one end of the cavity, a bulb is connected in the installation port and is a hollow annular bulb body, a screwdriver rod is installed in the middle of the bulb, the screwdriver rod is connected with the battery through an electric conductor, and the other end of the cavity is detachably connected with a handle cover. According to the utility model, the screwdriver and the wire checking lamp are combined, so that when a secondary circuit is checked, the circuit can be checked directly through the screwdriver handle contacting with the terminal strip, and the secondary circuit can be checked conveniently. If wiring modification or disassembly and assembly are carried out, modification can be directly carried out through a screwdriver, the problem that tools are frequently switched in the loop checking process is solved, the detection efficiency is effectively improved, meanwhile, the wires can be conveniently wound and stored through the storage assembly, winding of the wires is prevented, and arrangement and storage are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit detection, in particular to a combined secondary circuit checking screwdriver. Background Art

[0002] During the commissioning of power projects such as power plants and substations, the secondary circuits need to be inspected. Currently, secondary circuits are mostly inspected using a multimeter or a simple calibration lamp. If wiring modifications or disassembly are required during the inspection, a screwdriver must be used to make the modifications, and then the calibration lamp must be switched back to inspect. Switching tools back and forth makes secondary circuit inspection cumbersome and reduces detection efficiency.

[0003] Therefore, a combined secondary circuit verification screwdriver is needed to improve the above problems. Summary of the Invention

[0004] The purpose of the utility model is to provide a combined secondary circuit calibration screwdriver to solve the problem of low detection efficiency due to the need to switch tools back and forth, as proposed in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A combined secondary circuit verification screwdriver includes a screw handle, a cavity for placing a battery inside the screw handle, an installation port at one end of the cavity, a light bulb connected to the installation port, the light bulb is a hollow annular bulb body, a screwdriver rod is installed in the middle of the light bulb, the screwdriver rod and the battery are connected by a conductor, a handle cover is detachably connected to the other end of the cavity, a wire is docked in the middle of the handle cover, a storage component for winding the wire is provided in the middle of the wire, and the other end of the wire is connected to a grounding clamp.

[0007] As a preferred solution of the present invention, the storage assembly includes a storage box body, with openings for the wires to pass through at both ends of the storage box body, a connecting column fixedly connected to the middle part of the interior of the storage box body, a circular ring is provided on the outside of the connecting column, the circular ring and the connecting column are connected by a coil spring, and several pairs of limit rings for limiting the wires are provided on the outside of the circular ring; a cover plate is connected to one side of the storage box body, a limit groove is provided on the outside of the cover plate, a sealing plate is provided on one side of the cover plate, steel balls are rolled in the limit groove, and a slot is provided on one side of the sealing cover, and the cover plate is rotated by pulling the wire to change the position of the steel ball, thereby realizing the retraction and locking of the tube body.

[0008] As a preferred solution of the present invention, the handle cover is threadedly connected to the end of the screw handle cavity, and a metal conductive part is provided inside the handle cover.

[0009] As a preferred solution of the present invention, the metal conductive member is electrically connected to the wire, and the metal conductive member abuts against one end.

[0010] As a preferred solution of the present invention, the storage component is made of insulating material, and the exterior of the grounding clip is also made of insulating material.

[0011] As a preferred solution of the present invention, it is characterized in that the installation port at the end of the screw handle is plug-connected with a screwdriver rod.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model combines a screwdriver with a line calibration light. When checking the secondary circuit, the circuit can be checked directly by contacting the terminal block with the screwdriver handle. If wiring modification or disassembly is required, it can be modified directly with the screwdriver, eliminating the problem of frequent tool switching during circuit inspection, effectively improving the efficiency of inspection. At the same time, the wire adopts a storage component to achieve convenient winding and storage, preventing wire entanglement and facilitating storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the winding box in the present invention;

[0017] Figure 4 This is a schematic diagram of the card slot structure of the winding box body in the present utility model;

[0018] Figure 5 This is the detection circuit diagram of the utility model;

[0019] Figure 6 This is a schematic diagram of the utility model being used as a screwdriver.

[0020] In the figure: screw handle 1, bulb 2, handle cover 3, wire 4, storage assembly 5, storage box body 51, connecting column 52, limiting ring 53, opening 54, circular ring 55, coil spring 56, limiting groove 57, sealing cover 58, slot 59, steel ball 510, grounding clamp 6, screwdriver rod 7, battery 8. DETAILED DESCRIPTION

[0021] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to related disclosures. Several embodiments of the present invention are provided. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] See also Figure 1-6 , the utility model provides a technical solution:

[0026] For example, please refer to Figure 1 、 2 , 3, 4 and 6, a combined secondary circuit verification screwdriver, comprising a screw handle 1, the screw handle 1 has a cavity for placing a battery 8, one end of the cavity is provided with an installation port, a light bulb 2 is connected to the installation port, the light bulb 2 is a hollow annular light bulb body, a screwdriver rod 7 is installed in the middle of the light bulb 2, the screwdriver rod 7 and the battery 8 are connected by a conductor, the other end of the cavity is detachably connected to a handle cover 3, the middle of the handle cover 3 is docked with a wire 4, the middle of the wire 4 is provided with a storage component 5 for winding it, and the other end of the wire 4 is connected to a grounding clamp 6, the light bulb 2 has a variety of different colors.

[0027] The storage component 5 can roll up and store the wire 4, effectively preventing the wire 4 from being entangled. At the same time, the wire 4 is connected to the handle cover 3, and the handle cover 3 can be removed. The installation port is used to install the bulb 2 and the screwdriver rod 7. The whole has the functions of circuit detection and screwdriver use.

[0028] Please refer to Figure 1 、 2, 3 and 4, the storage assembly 5 includes a storage box body 51, and openings 54 are provided at both ends of the storage box body 51 for the wire 4 to pass through. A connecting column 52 is fixedly connected to the middle part of the interior of the storage box body 51, and a circular ring 55 is provided on the outside of the connecting column 52. The circular ring 55 and the connecting column 52 are connected by a coil spring 56, and a plurality of limiting rings 53 for limiting the position of the wire 4 are provided on the outside of the circular ring 55; a cover plate is connected to one side of the storage box body 51, and a limiting groove 57 is provided on the outside of the cover plate. A sealing plate is provided on one side of the cover plate, and a steel ball 510 is rolled in the limiting groove 57. A slot 59 is provided on one side of the sealing cover 58. The cover plate is rotated by pulling the wire 4 to change the position of the steel ball 510, thereby realizing the retraction and locking of the tube body.

[0029] By pulling the wire 4, the ring 55 is driven to move. At this time, the coil spring 56 is under force and has a restoring force. While pulling the wire 4, the cover is also pulled, and the steel ball 510 rolls in the limit groove 57 and engages with the slot 59 to keep it stuck. At this time, the steel ball 510 is stuck and the coil spring 56 cannot shrink. When it is necessary to rewind, the two ends of the wire 4 are pulled to make the steel ball 510 roll in the limit groove 57. At this time, the coil spring 56 shrinks, driving the ring 55 and the wire 4 to rewind.

[0030] Please refer to Figure 1 、 2 And 3, the handle cover 3 is threadedly connected to the end of the cavity of the screw handle 1, and a metal conductive part is provided inside the handle cover 3, the metal conductive part is electrically connected to the wire 4, and the metal conductive part abuts against one end of 8.

[0031] The receiving assembly 5 is made of insulating material, and the exterior of the grounding clip 6 is also made of insulating material.

[0032] Working principle: When conducting detection, use two devices at the same time. The detection points are divided into two points A and B. When used at the same time for detection, the positive and negative poles of the batteries 8 inside the two devices are reversed. The circuit is judged whether it is correct by whether the bulb 2 lights up. If it is not the same circuit, it will not light up. In order to distinguish different detection points, different detection devices are used, and the screw handle 1 is set to different colors to avoid taking the wrong one. Different colors of bulbs 2 can also prevent taking the wrong one.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined secondary circuit calibration screwdriver, comprising a screw handle (1), characterized in that: The screw handle (1) has a cavity for placing a battery (8) inside, and an installation port is opened at one end of the cavity. A light bulb (2) is connected to the installation port. The light bulb (2) is a hollow annular light bulb body. A screwdriver rod (7) is installed in the middle of the light bulb (2). The screwdriver rod (7) and the battery (8) are connected by a conductive clamp. The other end of the cavity is detachably connected to a handle cover (3). The middle of the handle cover (3) is docked with a wire (4). The middle of the wire (4) is provided with a storage component (5) for winding the wire, and the other end of the wire (4) is connected to a grounding clamp (6).

2. The combined secondary circuit verification screwdriver according to claim 1, characterized in that: The storage assembly (5) comprises a storage box body (51), both ends of which are provided with openings (54) for the wires (4) to pass through, a connecting column (52) being fixedly connected to the middle of the storage box body (51), a circular ring (55) being provided on the outside of the connecting column (52), the circular ring (55) being connected to the connecting column (52) via a coil spring (56), and a plurality of limiting rings (53) for limiting the position of the wires (4) being provided on the outside of the circular ring (55).

3. The combined secondary circuit verification screwdriver according to claim 2, characterized in that: One side of the storage box body (51) is connected to a cover plate, a limiting groove (57) is provided on the outer side of the cover plate, a sealing plate is provided on one side of the cover plate, a steel ball (510) is provided in a rolling manner in the limiting groove (57), and a slot (59) is provided on one side of the sealing cover (58). The cover plate is rotated by pulling the wire (4) to change the position of the steel ball (510), thereby realizing the retraction and locking of the tube body.

4. The combined secondary circuit verification screwdriver according to claim 1, characterized in that: The handle cover (3) is threadably connected to the end of the cavity of the screw handle (1), and a metal conductive part is provided inside the handle cover (3).

5. The combined secondary circuit verification screwdriver according to claim 4, characterized in that: The metal conductive member is electrically connected to the wire (4), and the metal conductive member is in contact with one end of (8).

6. The combined secondary circuit verification screwdriver according to claim 2, characterized in that: The storage assembly (5) is made of insulating material, and the exterior of the grounding clamp (6) is also made of insulating material.

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