Fault detection device for low-voltage power line carrier electric meter

Abstract

A low-voltage power line carrier electric meter fault detection device relates to the field of electric meter detection, and comprises a base, a fixing device, a limiting device and a plugging device, the fixing device is fixed in the base, the limiting device is fixed at the upper end of the base, the limiting device is matched with the fixing device for use, and the plugging device is fixed at the lower end of the base. The problem that in the background technology, fault detection or sampling inspection needs to be carried out after an existing electric energy meter is produced so as to ensure that the quality of the electric energy meter produced in the batch is qualified, and potential safety hazards occur in the follow-up using process of the electric energy meter can be solved. And the problems that the existing electric energy meter detection mode is that an electric energy meter is fixed on an insulating table or a wall body manually through bolts, then wiring is carried out, and then detection is carried out, the above mode wastes time and labor, and operators are easy to suffer from danger of electric shock are solved.

Description

Technical Field

[0001] The invention belongs to the field of electric meter detection, in particular to a low-voltage power line carrier electric meter fault detection device. Background Art

[0002] Electric meter is short for energy meter, which is an instrument used to measure electric energy. Any circuit with a voltage to ground of 250V or below is a low-voltage circuit. After the production of energy meters, fault detection or random inspection is required to ensure the quality of the energy meters produced in this batch and avoid potential safety hazards in the subsequent use of the energy meters. The existing energy meter detection method is mostly to manually fix the energy meter to an insulating table or wall with bolts, connect the wires, and then perform the detection. The above method is time-consuming and labor-intensive, and the operator is prone to the risk of electric shock. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems existing in the prior art and provide a low-voltage power line carrier electric meter fault detection device. To achieve the above purpose, the present invention adopts the following technical solutions:

[0004] A low-voltage power line carrier meter fault detection device, characterized in that it includes: a base, a fixing device, a limiting device and a plug-in device, the fixing device is fixed inside the base, the limiting device is fixed at the upper end of the base, the limiting device is used in conjunction with the fixing device, and the plug-in device is fixed at the lower end of the base.

[0005] The fixing device includes: a linkage plate, a linkage plate protrusion, a limiting tooth and a clamping unit. The linkage plate is provided with a linkage plate protrusion at the upper end, and limiting teeth are continuously provided on both sides of the linkage plate protrusion from top to bottom. A clamping unit is fixed in the base, and two of the clamping units are provided. The two clamping units are symmetrically arranged, and a linkage plate is fixed on the top between the two clamping units.

[0006] The two clamping units each include: a movable plate, a limiting column 1, a spring 1, a wedge block 1, a rotating plate, a wedge block 2, a rubber pad and a spring 2, a lower end of the limiting column slides and penetrates into the top surface of the movable plate, an upper end of the limiting column 1 is fixedly connected to the top surface of the base, the linkage plate is fixedly connected to the movable plate, a spring 1 is mounted on the limiting column 1, a wedge block 1 is fixed to the side surface of the movable plate, the rotating plate is rotatably connected to the base through a rotating shaft, a wedge block 2 is fixed to the side surface of the rotating plate, the wedge block 2 is arranged in the opposite direction of the wedge block 1, the wedge block 2 rests on the wedge block 1, a rubber pad is arranged on the other side of the rotating plate, one end of the spring 2 is fixedly connected to the movable plate, and the other end of the spring 2 is fixedly connected to the rotating plate.

[0007] The limiting device includes: a guide column one, a spring three, a conical block and a clamping unit, the lower end of the guide column slides into the top surface of the base, the guide column one is sleeved with a spring three, the spring three is arranged above the base, a conical block is fixed to the lower end of the guide column, the top surface of the conical block is provided with a convex edge, the clamping unit is fixedly connected to an inner side surface of the base, the clamping units are provided in two, the two clamping units are symmetrically arranged, the conical block is arranged between the two clamping units, the two clamping units are pressed against the conical block, and the two clamping units are used in conjunction with the limiting teeth.

[0008] The two clamping units each include: a top block, a second guide column, a fourth spring, and a clamping column. One end of the second guide column is slidably mounted in the top block, and the other end of the second guide column is fixedly connected to an inner side surface of a base. A fourth spring is mounted on the upper end of the second guide column. The top block rests on a conical block. A side surface of the top block is set as an inclined surface, which matches the conical block. A clamping column is fixed to the lower end of the top block. The clamping column rests on a limiting tooth and is used in conjunction with the limiting tooth.

[0009] The plug-in device includes: a screw rod, a sliding column, a trapezoidal sliding rod, a slider and a conductive pin. One end of the screw rod is screwed into and penetrates the bottom surface of the base. The sliding column is vertically fixed on the inner bottom surface of the base. The screw rod and the sliding column are symmetrically arranged. One end of the trapezoidal sliding rod is screwed and connected to the screw rod. The other end of the trapezoidal sliding rod is slidably connected to the sliding column. A plurality of sliders are connected to the sliding rod on the trapezoidal sliding rod. The plurality of sliders are respectively fixed by top screws, and a conductive pin is respectively fixed to the upper end of each slider.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The present invention provides a low-voltage power line carrier electric meter fault detection device, which can solve the problems raised in the background technology: the existing electric energy meters need to be fault-detected or spot-checked after production to ensure that the electric energy meters produced in this batch are of qualified quality and avoid potential safety hazards in the subsequent use of the electric energy meters; and the existing electric energy meter detection method is mostly to manually fix the electric energy meter to an insulating table or wall with bolts, connect the wires, and then perform the detection, which is time-consuming and labor-intensive, and the operator is prone to the risk of electric shock. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure;

[0013] Figure 2 is a schematic diagram of the clamping unit structure;

[0014] Figure 3 is a front view of the clamping unit;

[0015] Figure 4is the front view of the rotating plate;

[0016] Figure 5 1 is a schematic diagram of the structure of the limit device;

[0017] Figure 6 2. It is a schematic diagram of the structure of the card connection unit;

[0018] Figure 7 is a cross-sectional view of a trapezoidal slider;

[0019] Figure 8 is a side view of the slider;

[0020] Fig. 9 This is a schematic diagram of the usage process. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all of 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] A low-voltage power line carrier meter fault detection device comprises: a base 1, a fixing device 2, a limiting device 3 and a plug-in device 4, wherein the fixing device 2 is fixed inside the base 1, the limiting device 3 is fixed at the upper end of the base 1, the limiting device 3 is used in conjunction with the fixing device 2, and the plug-in device 4 is fixed at the lower end of the base 1.

[0023] The fixing device 2 includes: a linkage plate 2-1, a linkage plate protrusion 2-2, a limit tooth 2-3 and a clamping unit 2-4. The linkage plate 2-1 is provided with a linkage plate protrusion 2-2 on the upper end, and the limit teeth 2-3 are continuously provided on both sides of the linkage plate protrusion 2-2 from top to bottom. A clamping unit 2-4 is fixed in the base 1, and the clamping unit 2-4 is set in two. The two clamping units 2-4 are symmetrically arranged, and a linkage plate 2-1 is fixed on the top between the two clamping units 2-4.

[0024] The two clamping units 2-4 each include: a moving plate 2-4-1, a limiting column 2-4-2, a spring 2-4-3, a wedge block 2-4-4, a rotating plate 2-4-5, a wedge block 2-4-6, a rubber pad 2-4-7 and a spring 2-4-8. The lower end of the limiting column 2-4-2 slides into the top surface of the moving plate 2-4-1, and the upper end of the limiting column 2-4-2 is fixedly connected to the top surface of the base 1. The linkage plate 2-1 is fixedly connected to the moving plate 2-4-1. The limiting column 2-4-2 is provided with a spring 2-4-3. The moving plate 2-4 -1 has a wedge block 2-4-4 fixed on one side, the rotating plate 2-4-5 is rotatably connected to the base 1 through a rotating shaft, a wedge block 2-4-6 is fixed on one side of the rotating plate 2-4-5, the wedge block 2-4-6 is arranged opposite to the wedge block 2-4-4, the wedge block 2-4-6 rests on the wedge block 2-4-4, a rubber pad 2-4-7 is arranged on the other side of the rotating plate 2-4-5, one end of the spring 2-4-8 is fixedly connected to the movable plate 2-4-1, and the other end of the spring 2-4-8 is fixedly connected to the rotating plate 2-4-5.

[0025] The limiting device 3 includes: a guide column 3-1, a spring 3-2, a conical block 3-3 and a clamping unit 3-4. The lower end of the guide column 3-1 slides into the top surface of the base 1. The guide column 3-1 is provided with a spring 3-2. The spring 3-2 is arranged above the base 1. The lower end of the guide column 3-1 is fixed with a conical block 3-3. The top surface of the conical block 3-3 is provided with a convex edge. The clamping unit 3-4 is fixedly connected to the inner side surface of the base 1. The clamping unit 3-4 is provided in two, and the two clamping units 3-4 are symmetrically arranged. The conical block 3-3 is arranged between the two clamping units 3-4. The two clamping units 3-4 are pressed against the conical block 3-3. The two clamping units 3-4 are used in conjunction with the limiting teeth 2-3.

[0026] The two clamping units 3-4 each include: a top block 3-4-1, a guide column 3-4-2, a spring 4 3-4-3 and a clamping column 3-4-4, one end of the guide column 3-4-2 is slidably mounted in the top block 3-4-1, and the other end of the guide column 3-4-2 is fixedly connected to an inner side surface of the base 1, and a spring 4 3-4-3 is mounted on the upper end of the guide column 3-4-2, the top block 3-4-1 rests on the conical block 3-3, and a side surface of the top block 3-4-1 is set as an inclined surface, which matches the conical block 3-3, and a clamping column 3-4-4 is fixed to the lower end of the top block 3-4-1, and the clamping column 3-4-4 rests on the limiting tooth 2-3 and is used in conjunction with the limiting tooth 2-3.

[0027] The plug-in device 4 includes: a screw rod 4-1, a slide post 4-2, a trapezoidal slide rod 4-3, a slider 4-4 and a conductive needle 4-5. One end of the screw rod 4-1 is screwed into the bottom surface of the base 1, and the slide post 4-2 is vertically fixed on the inner bottom surface of the base 1. The screw rod 4-1 and the slide post 4-2 are symmetrically arranged. One end of the trapezoidal slide rod 4-3 is screwed and connected to the screw rod 4-1, and the other end of the trapezoidal slide rod 4-3 is slidably connected to the slide post 4-2. The upper sliding rod of the trapezoidal slide rod 4-3 is connected to a plurality of sliders 4-4, and the plurality of sliders 4-4 are respectively fixed by top screws, and a conductive needle 4-5 is respectively fixed to the upper end of each slider 4-4. The working principle of the present invention is:

[0028] When using the device, the electric meter to be tested is placed against the linkage plate 2-1, and the linkage plate 2-1 is pushed to move upward. The movement of the linkage plate 2-1 drives the moving plate 2-4-1 to slide upward along the limit column 2-4-2, and at the same time compresses the spring 2-4-3. The spring 2-4-3 plays a role in resetting. The moving plate 2-4-1 moves through the wedge block 1 2-4-4 to push the wedge block 2-4-6. The wedge block 2-4-6 drives the rotating plate 2-4-5 to rotate. The rotating plates 2-4-5 set by the two clamping units 2-4 rotate to clamp the two sides of the electric energy meter to complete the fixation. When the rotating plate 2-4-5 rotates, the spring 2-4-8 is stretched. The spring 2-4-8 plays a role in resetting the rotating plate 2-4-5. The rubber pad 2 -4-7 plays a buffering role to prevent the electric energy meter from being pinched or scratched. According to the above method, electric meters of different models and sizes can be clamped and fixed with strong versatility. The movement of the linkage plate 2-1 drives the linkage plate protrusion 2-2 to move upward, and the clamping column 3-4-4 slides along the limiting tooth 2-3. When the rotating plate 2-4-5 clamps the electric energy meter, the limiting tooth 2-3 is clamped by the clamping column 3-4-4 to complete the limiting fixation of the moving plate 2-4-1; when the detection is completed and the electric energy meter needs to be removed, the guide column 1 3-1 is pressed downward to compress the spring 3-2, and the spring 3-2 plays the role of resetting the guide column 1 3-1. The guide column 1 3-1 moves downward to drive the conical block 3-3 to move, and the conical block 3-3 moves to squeeze the top block 3-4-1 to both sides, so that the top block 3-4-1 slides along the guide column 2 3-4-2 and compresses the spring 4 3-4-3. The spring 4 3-4-3 plays the role of resetting the top block 3-4-1. The top block 3-4-1 moves to drive the clamping column 3-4-4 to separate from the limit tooth 2-3. At this time, the spring 1 2-4-3 and the spring 2 2-4-8 drive the moving plate 2-4-1 and the rotating plate 2-4-5 to reset. Release the meter. At this time, take the meter off and release the guide column 1 3-1 at the same time. The spring 3-2 and the spring 4 3-4-3 drive the conical block 3-3 and the clamping column 3-4-4 to reset. The convex edge of the conical block 3-3 can prevent the conical block 3-3 from separating from the top block 3-4-1 and slipping when moving downward. At this time, the next meter can be tested. When the connection is completed, the connecting wires and the electric wires are fixedly connected to the multiple conductive pins 4-5 respectively. The number of conductive pins 4-5 to be connected can be determined according to the model of the electric meter. Then the sliding block 4-4 slides along the sliding column 4-2 to align the conductive pins 4-5 on the sliding column 4-2 with the interface of the electric meter. Then, the limiting screw is used to fix them. After the connection is completed, the screw rod 4-1 is rotated to drive the trapezoidal sliding rod 4-3 to move upward through the limiting screw of the sliding column 4-2, thereby driving the conductive pins 4-5 set on the multiple sliding columns 4-2 to be inserted into the interface of the electric meter. At this time, the electrical fault detection can be carried out. The screw rod 4-1, the sliding column 4-2, the trapezoidal sliding rod 4-3, and the sliding block 4-4 are all made of insulating materials. After the detection is completed, the screw rod 4-1 is rotated in the opposite direction to separate the conductive pins 4-5 from the electric meter.The risk of electric shock to operators can be reduced by using insulating materials and reducing the number of bolt tightening steps.

[0029] It will be apparent to those skilled in the art that the 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 the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A low voltage power line carrier electric meter fault detection device, characterized in that: include: A base (1), a fixing device (2), a limiting device (3) and a plug-in device (4); the fixing device (2) is fixed inside the base (1); the limiting device (3) is fixed at the upper end of the base (1); the limiting device (3) is used in conjunction with the fixing device (2); and the plug-in device (4) is fixed at the lower end of the base (1).

2. A low voltage power line carrier meter fault detection device according to claim 1, characterized in that: The fixing device (2) comprises: a linkage plate (2-1), a linkage plate protrusion (2-2), a limiting tooth (2-3) and a clamping unit (2-4); the linkage plate (2-1) is provided with a linkage plate protrusion (2-2) at the upper end; the limiting teeth (2-3) are continuously provided on both sides of the linkage plate protrusion (2-2) from top to bottom; a clamping unit (2-4) is fixed inside the base (1); two clamping units (2-4) are provided; the two clamping units (2-4) are symmetrically arranged; and a linkage plate (2-1) is fixed at the top between the two clamping units (2-4).

3. A low voltage power line carrier electric meter fault detection device according to claim 2, characterized in that: The two clamping units (2-4) each comprise: a moving plate (2-4-1), a limiting column (2-4-2), a spring (2-4-3), a wedge block (2-4-4), a rotating plate (2-4-5), a wedge block (2-4-6), a rubber pad (2-4-7) and a spring (2-4-8); the lower end of the limiting column (2-4-2) slides into the top surface of the moving plate (2-4-1); the upper end of the limiting column (2-4-2) is fixedly connected to the top surface of the base (1); the linkage plate (2-1) is fixedly connected to the moving plate (2-4-1); the limiting column (2-4-2) is sleeved with a spring (2-4-3); the moving plate (2 -4-1) is fixed with a wedge block 1 (2-4-4), the rotating plate (2-4-5) is rotatably connected to the base (1) via a rotating shaft, a wedge block 2 (2-4-6) is fixed to one side of the rotating plate (2-4-5), the wedge block 2 (2-4-6) is arranged opposite to the wedge block 1 (2-4-4), the wedge block 2 (2-4-6) is pressed against the wedge block 1 (2-4-4), a rubber pad (2-4-7) is arranged on the other side of the rotating plate (2-4-5), one end of the spring 2 (2-4-8) is fixedly connected to the movable plate (2-4-1), and the other end of the spring 2 (2-4-8) is fixedly connected to the rotating plate (2-4-5).

4. A low voltage power line carrier electric meter fault detection device according to claim 2, characterized in that: The limiting device (3) comprises: a guide column (3-1), a spring (3-2), a conical block (3-3) and a clamping unit (3-4), wherein the lower end of the guide column (3-1) slides into the top surface of the base (1), the guide column (3-1) is sleeved with a spring (3-2), the spring (3-2) is arranged above the base (1), the lower end of the guide column (3-1) is fixed with a conical block (3-3), the conical block (3-3) is ) is provided with a convex edge on the top surface, the clamping unit (3-4) is fixedly connected to an inner side surface of the base (1), the clamping unit (3-4) is provided in two, the two clamping units (3-4) are symmetrically arranged, the conical block (3-3) is arranged between the two clamping units (3-4), the two clamping units (3-4) are pressed against the conical block (3-3), and the two clamping units (3-4) are used in conjunction with the limiting teeth (2-3).

5. A low voltage power line carrier electric meter fault detection device according to claim 4, characterized in that: The two clamping units (3-4) each comprise: a top block (3-4-1), a second guide column (3-4-2), a fourth spring (3-4-3) and a clamping column (3-4-4); one end of the second guide column (3-4-2) is slidably mounted in the top block (3-4-1); the other end of the second guide column (3-4-2) is fixedly connected to an inner side surface of the base (1); a fourth spring (3-4-3) is mounted on the upper end of the second guide column (3-4-2); the top block (3-4-1) is pressed against the conical block (3-3); a side surface of the top block (3-4-1) is arranged as an inclined surface, and the inclined surface matches the conical block (3-3); a clamping column (3-4-4) is fixed on the lower end of the top block (3-4-1); the clamping column (3-4-4) is pressed against the limiting tooth (2-3) and is used in conjunction with the limiting tooth (2-3).

6. A low voltage power line carrier electric meter fault detection device according to claim 1, characterized in that: The plug-in device (4) comprises: a screw rod (4-1), a slide post (4-2), a trapezoidal slide rod (4-3), a slider (4-4) and a conductive needle (4-5); one end of the screw rod (4-1) is screwed into the bottom surface of the base (1); the slide post (4-2) is vertically fixed on the inner bottom surface of the base (1); the screw rod (4-1) and the slide post (4-2) are symmetrically arranged; one end of the trapezoidal slide rod (4-3) is screwed and connected to the screw rod (4-1); the other end of the trapezoidal slide rod (4-3) is slidably connected to the slide post (4-2); the upper slide rod of the trapezoidal slide rod (4-3) is connected to a plurality of sliders (4-4); the plurality of sliders (4-4) are respectively fixed by means of top screws; and a conductive needle (4-5) is respectively fixed to the upper end of each slider (4-4).

Images