Maintenance device for operation equipment for electricity fee return and compensation and use method of maintenance device
By designing an operation and maintenance device for electricity fee refunds and reimbursements that includes components such as an insulating shell, a pen tip, and a metal guide rod, the problem that existing test pens cannot simultaneously test whether the wires are live and cut the insulation layer has been solved, thus enabling convenient electricity fee refund and reimbursement operations and improving safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- STATE GRID JIBEI ELECTRIC POWER CO LTD TANGSHAN POWER SUPPLY CO
- Filing Date
- 2025-09-29
- Publication Date
- 2026-05-08
AI Technical Summary
Existing test pens cannot conveniently test the stability of the connection between the wire and the terminal block, and require tool replacement when cutting the wire insulation, making operation inconvenient.
A maintenance device for electricity fee refund and reimbursement operation equipment was designed, comprising an insulating shell, a pen tip, a metal guide rod, a resistor, a neon tube, a spring, and a metal end cap. Through the design of movable blocks and rotating blocks, the device realizes the functions of clamping and cutting wires, and integrates them into one device.
This allows for testing the stability of the connection between the wire and the terminal without touching the wire, and also enables easy cutting of the wire insulation, improving operational safety and efficiency.
Smart Images

Figure CN121995295A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a maintenance device for operating equipment used for electricity fee refunds and its usage method, belonging to the field of power maintenance equipment. Background Technology
[0002] Common reasons for electricity bill refunds or supplements include meter damage and poor wiring connections, which may result in under- or over-charging of electricity consumption, requiring a refund or supplement for the difference. The refund process requires on-site inspection of the electricity meter by staff, which necessitates the use of equipment such as a test pen or ohmmeter. Currently, most common test pens can only test whether the wires are live and remove bolts; cutting the wire insulation and testing the secure connection between terminals and wires require different tools, making the process cumbersome. Therefore, improvements are necessary. Summary of the Invention
[0003] The purpose of this invention is to solve the above-mentioned problems existing in the background art by providing a maintenance device for electricity fee refund and reimbursement operation equipment and its usage method.
[0004] The present invention achieves the above objectives by adopting the following technical solution:
[0005] A maintenance device for an operating equipment used for electricity fee refunds and reimbursements includes an insulating housing; inside the insulating housing, a pen tip, a metal guide rod, a resistor, a neon tube, a spring, and a metal end cap are arranged in sequence; the metal guide rod is fixedly connected inside the insulating housing, one end of the pen tip is fixedly connected to the metal guide rod, and the other end of the pen tip protrudes outside the insulating housing.
[0006] Furthermore, the pen tip includes a fixed block, a rotating block, a movable block I, and a movable block II; one end of the fixed block is fixedly connected to a metal guide rod, and the fixed block is also hinged to the rotating block via a spring hinge on a connecting device; the movable block II is disposed on the fixed block; the movable block I is disposed on the rotating block; the opposite surfaces of the movable block I and the movable block II are respectively provided with arc-shaped groove I and arc-shaped groove II that are interconnected.
[0007] Furthermore, notches are provided on the opposite surfaces of the fixed block and the rotating block.
[0008] Furthermore, the ends of the movable block I and the movable block II away from the fixed block are respectively provided with inclined surfaces I and II that are interconnected, and inclined grooves I and II are respectively provided on the opposite surfaces of the movable block I and the movable block II; the inclined grooves I, inclined grooves II, arc grooves I and arc grooves II are interconnected.
[0009] Furthermore, the end faces of the fixed block and the rotating block away from the metal guide rod are on the same plane. The end face of the fixed block away from the metal guide rod is provided with an arc-shaped limiting groove I, and the end face of the rotating block away from the metal guide rod is provided with an arc-shaped limiting groove II. The limiting groove I and the limiting groove II are interconnected. The end face of the movable block I near the rotating block is fixedly connected with a T-shaped slider I that slides with the limiting groove I and the limiting groove II. The end face of the movable block II near the fixed block is fixedly connected with a T-shaped slider II that slides with the limiting groove I and the limiting groove II. The end faces of the movable block I and the movable block II near the fixed block are also respectively provided with interconnected receiving grooves I and II that can accommodate spring hinges.
[0010] Furthermore, the movable block I and movable block II form a cylinder, the volume of movable block I is smaller than the volume of movable block II, and the contact surfaces of movable block I and movable block II are both planar.
[0011] Furthermore, the inner wall of the arc-shaped groove II is provided with a groove, and the interior of the movable block II is provided with a circular hole. One end of the circular hole is connected to the groove, and the other end of the circular hole is connected to the receiving groove II. A screw is fixedly connected to the outer wall of the spring hinge, and a threaded cylinder is provided on the outside of the screw for threaded engagement. The threaded cylinder is slidably engaged with the circular hole. A cutting blade is fixedly connected to the end of the threaded cylinder, and the cutting blade is slidably engaged with the groove.
[0012] Furthermore, a limiting rod is fixedly connected inside the receiving groove II.
[0013] Furthermore, the ends of the movable blocks I and II that are away from the fixed block are tapered, and slots I and II for disassembling bolts are respectively provided on the tapered surface.
[0014] A method for using a maintenance device for electricity fee refund / refund operations, the method comprising the following steps:
[0015] Step 1: Touch the pen tip to the terminal block and wire, and press the metal end cap with your finger to test if it is live;
[0016] Step 2: Place inclined plane I and inclined plane II against the insulation layer of the wire, then push the insulation shell to move the wire into the arc groove I and arc groove II, rotate the insulation shell in the forward direction, and then pull the insulation shell to test whether the wire is loose;
[0017] Step 3: When it is necessary to cut the insulation layer of the wire, move the wire into the arc groove I and arc groove II as in Step 2, rotate the insulation shell in the opposite direction so that the cutting blade is exposed outside the groove, and push the insulation shell to rotate around the wire to complete the cutting of the wire insulation layer.
[0018] Compared with the prior art, the beneficial effects of the present invention are: the present invention can not only clamp the wire so that the operator can shake the wire without touching it to check whether the connection between the wire and the terminal is secure, thus ensuring the safety of the operator, but also cut the insulation layer of the wire. Attached Figure Description
[0019] Figure 1 This is a front view of a maintenance device for an operation equipment used for electricity fee refunds and reimbursements according to the present invention;
[0020] Figure 2 This is a schematic diagram of the structure of a wire clamping device for an operating equipment maintenance device for electricity fee refunds and reimbursements according to the present invention. Figure I ;
[0021] Figure 3 This is a schematic diagram of the structure of a wire clamping device for an operating equipment maintenance device for electricity fee refunds and reimbursements according to the present invention. Figure II ;
[0022] Figure 4 This is a schematic diagram of the pen tip structure of a maintenance device for an operating equipment used for electricity fee refunds and reimbursements according to the present invention;
[0023] Figure 5 This is a three-dimensional structural schematic diagram of the pen tip of a maintenance device for an operation equipment used for electricity fee refunds and reimbursements according to the present invention;
[0024] Figure 6 This is a schematic diagram of the connection structure of the movable block I and the rotating block of the operation equipment maintenance device for electricity fee refund and reimbursement according to the present invention;
[0025] Figure 7 This is a schematic diagram of the connection structure of the movable block II and the fixed block of the operation equipment maintenance device for electricity fee refund and reimbursement according to the present invention;
[0026] Figure 8 This is a schematic diagram of the connection device of the operation equipment maintenance device for electricity fee refund and reimbursement according to the present invention;
[0027] Figure 9 This is a bottom view of movable block I and movable block II of an operating equipment maintenance device for electricity fee refund and reimbursement according to the present invention. Detailed Implementation
[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0029] Specific implementation method one: as followsFigures 1-9 As shown in the figure, this embodiment describes a maintenance device for an operating equipment used for electricity fee refunds and reimbursements, including an insulating shell 1; inside the insulating shell 1, a pen tip 7, a metal guide rod 2, a resistor 3, a neon tube 4, a spring 5, and a metal end cap 6 are arranged in sequence; the metal guide rod 2 is fixedly connected inside the insulating shell 1, one end of the pen tip 7 is fixedly connected to the metal guide rod 2, and the other end of the pen tip 7 protrudes outside the insulating shell 1.
[0030] The pen tip 7 includes a fixed block 74, a rotating block 73, a movable block I 71, and a movable block II 72. One end of the fixed block 74 is fixedly connected to the metal guide rod 2, and the fixed block 74 is also hinged to the rotating block 73 via a spring hinge 751 on the connecting device 75. The movable block II 72 is mounted on the fixed block 74. The movable block I 71 is mounted on the rotating block 73. The opposite surfaces of the movable blocks I 71 and II 72 are respectively provided with arc-shaped grooves I 712 and II 722 that are interconnected. This allows the wire 8 to enter the arc-shaped grooves I 712 and II 722 for testing and cutting.
[0031] Both the fixed block 74 and the rotating block 73 have notches on their opposite surfaces, leaving sufficient clearance for the rotating block 73 to rotate relative to the fixed block 74.
[0032] The movable blocks I 71 and II 72 are respectively provided with interconnected inclined surfaces I 714 and II 724 at their ends away from the fixed block 74, and inclined grooves I 713 and II 723 are respectively provided on their opposite surfaces; the inclined grooves I 713, II 723, I 712, and II 722 are interconnected. The inclined surfaces I 714 and II 724 eliminate the need for manual alignment of the wire 8 and make it easier for the wire 8 to enter the curved grooves I 712 and II 722; the inclined grooves I 713 and II 723 change the angle of the inner walls of the curved grooves I 712 and II 722, making it easier for the wire 8 to detach after testing without manual intervention.
[0033] The end faces of the fixed block 74 and the rotating block 73 away from the metal guide rod 2 are on the same plane. The end face of the fixed block 74 away from the metal guide rod 2 is provided with an arc-shaped limiting groove I 741, and the end face of the rotating block 73 away from the metal guide rod 2 is provided with an arc-shaped limiting groove II 731. The limiting groove I 741 and the limiting groove II 731 are interconnected. The end face of the movable block I 71 near the rotating block 73 is fixedly connected with a T-shaped slider I 716 that slides with the limiting groove I 741 and the limiting groove II 731. The end face of the movable block II 72 near the fixed block 74 is fixedly connected with a T-shaped slider II 726 that slides with the limiting groove I 741 and the limiting groove II 731. The end faces of the movable block I 71 and the movable block II 72 near the fixed block 74 are also respectively provided with interconnected receiving grooves I 715 and receiving groove II 725 that can accommodate the spring hinge 751. The receiving grooves I 715 and II 725 provide sufficient space for the rotation of the spring hinge 751.
[0034] The movable block I 71 and movable block II 72 form a cylinder. The volume of movable block I 71 is smaller than the volume of movable block II 72, and the contact surfaces of movable block I 71 and movable block II 72 are both planar.
[0035] The inner wall of the arc-shaped groove II 722 is provided with a groove 728, and the interior of the movable block II 72 is provided with a circular hole 727. One end of the circular hole 727 communicates with the groove 728, and the other end of the circular hole 727 communicates with the receiving groove II 725. A screw 753 is fixedly connected to the outer wall of the spring hinge 751. A threaded cylinder 752 is provided on the outside of the screw 753, which is threadedly engaged with it. The threaded cylinder 752 is slidably engaged with the circular hole 727. A cutting blade 754 is fixedly connected to the end of the threaded cylinder 752, and the cutting blade 754 is slidably engaged with the groove 728. The cutting blade 754 can move up and down with the relative rotation of the movable block I 71, the movable block II 72, the fixed block 74, and the rotating block 73. When it moves upward, it can be exposed from the groove 728 to cut the insulation layer of the wire 8.
[0036] A limiting rod 728 is fixedly connected inside the receiving groove II 725. The limiting rod 728 can limit the displacement of the spring hinge 751 during the relative rotation of the movable block I 71, movable block II 72, fixed block 74, and rotating block 73.
[0037] The ends of movable blocks I 71 and II 72 furthest from the fixed block 74 are tapered, with slots I 711 and II 721 respectively on their tapered surfaces for removing bolts. The tapered ends of movable blocks I 71 and II 72 are inserted into the bolts of the terminal blocks to facilitate bolt removal and installation. During bolt removal and installation, the friction between the bolt and the threaded hole restricts the rotation of movable blocks I 71 and II 72. When the insulating housing 1 is rotated, the relative rotation of movable blocks I 71 and II 72 with the fixed block 74 and rotating block 73 continues until the spring hinge 751 contacts the limit rod 728. At this point, relative rotation ceases, allowing for clockwise or counterclockwise rotation to facilitate bolt removal and installation.
[0038] A method for using a maintenance device for electricity fee refund / refund operations, the method comprising the following steps:
[0039] Step 1: Touch the pen tip 7 to the terminal block and wire 8, and press the metal end cap 6 with your finger to test whether it is live;
[0040] Step 2: Place inclined plane I 714 and inclined plane II 724 against the insulation layer of the conductor 8, then push the insulating shell 1 to move the conductor 8 into the arc groove I 712 and arc groove II 722, rotate the insulating shell 1 in the forward direction, and then pull the insulating shell 1 to test whether the conductor 8 is loose;
[0041] Step 3: When it is necessary to cut the insulation layer of the wire 8, move the wire 8 into the arc groove I 712 and arc groove II 722 in the manner of step 2, rotate the insulating shell 1 in the opposite direction so that the cutting blade 754 is exposed outside the groove 728, push the insulating shell 1 to rotate around the wire 8, and complete the cutting of the insulation layer of the wire 8.
[0042] The working principle of this invention is as follows: the pen tip 7 is brought into contact with the terminal or wire 8, and the metal end cap 6 is pressed with a finger to test whether it is energized;
[0043] Inclined surfaces I 714 and II 724 are pressed against the insulation layer of the conductor 8. Then, the insulating shell 1 is pushed in the direction of the conductor 8. Because the pen tip 7 is pressed against the conductor 8, under the resistance of the conductor 8, the rotating block 73 and the movable block I 71 rotate around the spring hinge 751, causing the free ends of the movable blocks I 71 and II 72 to separate, moving the conductor 8 into the arc-shaped grooves I 712 and II 722 (as shown). Figure 2 , 3(As shown in the state), then rotate the insulating shell 1 in the forward direction. Since the wire 8 is located in the arc groove I 712 and arc groove II 722, the rotation of the movable block I 71 and movable block II 72 is restricted. Therefore, the rotation of the insulating shell 1 drives the fixed block 74 and the rotating block 73 to rotate around the screw 753 until the spring hinge 751 contacts the limit rod 728 and stops rotating. At this time, at least one T-shaped slider I 716 on the end face of the movable block I 71 rotates from the limit groove II 731 on the rotating block 73 to the limit groove I 741 on the fixed block 74. At least one T-shaped slider II 726 on the end face of the movable block II 72 moves from the limit groove I 741 on the fixed block 74 to the limit groove II 731 on the rotating block 73 to prevent the movable block I 71 and the rotating block 73 from rotating around the spring hinge 751 during the test, which would cause the wire 8 to loosen. Finally, pull the insulating shell 1 to make the insulating shell 1 drive the wire 8 to shake to test whether the connection between the wire 8 and the insulating terminal is loose.
[0044] When it is necessary to cut the insulation layer of wire 8, move the wire into the arc groove I 712 and arc groove II 722 as in step two, and rotate the insulating shell 1 in the opposite direction until the other side of the spring hinge 751 contacts the limiting rod 728. Similarly, at least one T-shaped slider I 716 on the end face of the movable block I 71 rotates from the limiting groove II 731 on the rotating block 73 to the limiting groove I 741 on the fixed block 74, and at least one T-shaped slider II 726 on the end face of the movable block II 72 moves from the limiting groove I 741 on the fixed block 74 to... The limiting groove II 731 on the rotating block 73 prevents the wire 8 from coming loose. During the rotation of the fixed block 74 relative to the movable block I 71 and movable block II 72, the spring hinge 751 also rotates. The cutting blade 754 is located in the groove 728 and cannot rotate. Therefore, the threaded cylinder 752 and the screw 753 also rotate relative to each other, causing the cutting blade 754 to disengage from the groove 728. The cutting blade 754 is exposed outside the groove 728 and embedded in the insulation layer of the wire 8, pushing the insulating shell 1 to rotate around the wire 8 for one revolution, thus completing the cutting of the insulation layer of the wire 8.
[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A maintenance device for operating equipment used for electricity fee refunds and reimbursements, characterized in that: It includes an insulating shell (1); inside the insulating shell (1) are arranged a pen tip (7), a metal guide rod (2), a resistor (3), a neon tube (4), a spring (5) and a metal end cap (6); the metal guide rod (2) is fixedly connected inside the insulating shell (1), one end of the pen tip (7) is fixedly connected to the metal guide rod (2), and the other end of the pen tip (7) protrudes outside the insulating shell (1).
2. The maintenance device for electricity fee refund / refund operation equipment according to claim 1, characterized in that: The pen tip (7) includes a fixed block (74), a rotating block (73), a movable block I (71), and a movable block II (72); one end of the fixed block (74) is fixedly connected to the metal guide rod (2), and the fixed block (74) is also hinged to the rotating block (73) through a spring hinge (751) on the connecting device (75); the movable block II (72) is set on the fixed block (74); the movable block I (71) is set on the rotating block (73); the opposite surfaces of the movable block I (71) and the movable block II (72) are respectively provided with arc-shaped groove I (712) and arc-shaped groove II (722) that are interconnected.
3. The maintenance device for electricity fee refund / refund operation equipment according to claim 2, characterized in that: The fixed block (74) and the rotating block (73) are provided with notches on their opposite surfaces.
4. The maintenance device for electricity fee refund / refund operation equipment according to claim 2, characterized in that: The movable block I (71) and movable block II (72) are respectively provided with inclined surfaces I (714) and inclined surfaces II (724) that are connected to each other at the ends away from the fixed block (74), and inclined grooves I (713) and inclined grooves II (723) are respectively provided on the opposite surfaces of the movable block I (71) and movable block II (72). The inclined grooves I (713), inclined grooves II (723), arc grooves I (712) and arc grooves II (722) are connected to each other.
5. The maintenance device for electricity fee refund / refund operation equipment according to claim 4, characterized in that: The end faces of the fixed block (74) and the rotating block (73) away from the metal guide rod (2) are on the same plane. The end face of the fixed block (74) away from the metal guide rod (2) is provided with an arc-shaped limiting groove I (741), and the end face of the rotating block (73) away from the metal guide rod (2) is provided with an arc-shaped limiting groove II (731). The limiting groove I (741) and the limiting groove II (731) are interconnected. The end face of the movable block I (71) near the rotating block (73) is fixedly connected to the limiting groove I (741). The movable block II (72) has a T-shaped slider I (716) that slides with the limiting groove II (731); the movable block II (72) is fixedly connected to the end face of the fixed block (74) with a T-shaped slider II (726) that slides with the limiting groove I (741) and the limiting groove II (731); the movable block I (71) and the movable block II (72) are also provided with a receiving groove I (715) and a receiving groove II (725) that are interconnected and can accommodate the spring hinge (751) on the end faces of the movable block I (71) and the movable block II (72) near the fixed block (74).
6. The maintenance device for electricity fee refund / refund operation equipment according to claim 5, characterized in that: The movable block I (71) and movable block II (72) form a cylinder. The volume of movable block I (71) is smaller than the volume of movable block II (72), and the contact surfaces of movable block I (71) and movable block II (72) are both planes.
7. The maintenance device for electricity fee refund / refund operation equipment according to claim 6, characterized in that: The inner wall of the arc-shaped groove II (722) is provided with a groove (728), and the inside of the movable block II (72) is provided with a round hole (727). One end of the round hole (727) is connected to the groove (728), and the other end of the round hole (727) is connected to the receiving groove II (725). A screw (753) is fixedly connected to the outer wall of the spring hinge (751). A threaded cylinder (752) is provided on the outside of the screw (753) and is threadedly engaged with it. The threaded cylinder (752) is slidably engaged with the round hole (727). A cutting blade (754) is fixedly connected to the end of the threaded cylinder (752). The cutting blade (754) is slidably engaged with the groove (728).
8. The maintenance device for electricity fee refund / refund operation equipment according to claim 7, characterized in that: A limiting rod (728) is fixedly connected inside the receiving groove II (725).
9. A maintenance device for electricity fee refund / refund operation equipment according to claim 8, characterized in that: The ends of the movable blocks I (71) and II (72) away from the fixed block (74) are tapered, and slots I (711) and II (721) for disassembling bolts are respectively provided on the tapered surfaces.
10. The method of using the maintenance device for electricity fee refund and reimbursement operation equipment according to claim 9, characterized in that: The method of use includes the following steps: Step 1: Touch the pen tip (7) to the terminal block and wire (8), and press the metal end cap (6) with your finger to test whether it is live; Step 2: Place the inclined plane I (714) and inclined plane II (724) against the insulation layer of the conductor (8), then push the insulating shell (1) to move the conductor (8) into the arc groove I (712) and arc groove II (722), rotate the insulating shell (1) in the forward direction, and then pull the insulating shell (1) to test whether the conductor (8) is loose; Step 3: When it is necessary to cut the insulation layer of the wire (8), move the wire (8) into the arc groove I (712) and arc groove II (722) in the manner of step 2, rotate the insulating shell (1) in the opposite direction so that the cutting blade (754) is exposed outside the groove (728), push the insulating shell (1) to rotate around the wire (8) to complete the cutting of the insulation layer of the wire (8).