A three-phase electric energy meter measurement abnormality monitoring device

Abstract

The present invention discloses a three-phase electric energy meter measurement abnormality monitoring device, which relates to the technical field of three-phase electric energy meters and solves the technical problems that electric energy meters at higher locations require manual inspection and climbing, and cannot be cut off in time if the connection terminals are burned out. The device comprises: an electric energy meter body, a connecting wire is provided at the bottom of the electric energy meter body; an inspection component for detecting multiple connecting wires, the inspection component comprises a detection clamp for detecting the connecting wires, a temperature detector and a tester for displaying the detection data; a blocking structure for timely cutting off the abnormal connecting wires, the blocking structure comprises a blocking knife for cutting off the connecting wires; the present invention can timely detect the current abnormality and temperature abnormality of the electric energy meter body at a high location, and compared with manual inspection, the burning of the connecting wire caused by the temperature abnormality can be blocked in time, and the burnt connecting wire will not be allowed to spread to other devices, thereby increasing the safety of the entire electric energy meter body and reducing the probability of safety hazards.

Description

Technical Field

[0001] The invention belongs to the technical field of electric energy meters, and in particular to a device for monitoring measurement anomalies of a three-phase electric energy meter. Background Art

[0002] With the rapid development of power systems, the accuracy and reliability of electric energy meters, as important equipment for power measurement, are crucial to the stable operation of power systems. Therefore, corresponding detection devices are used.

[0003] For example, a three-phase electricity meter measurement and detection device with the announcement number CN209432997U includes a box body, a three-phase electricity meter tester is fixedly installed inside the box body, the three-phase electricity meter tester is located on one side of the box body, and two hinges are fixedly installed on the top of the box body. The top of the box body is rotatably connected to a box cover through the hinge.

[0004] The above-mentioned existing patents require manual inspection of electricity meters at higher locations, which requires climbing, is dangerous and has low inspection efficiency. Moreover, if the electricity meter terminals burn out and cannot be cut off in time, surrounding devices may be affected, and may even cause dangerous problems such as fire. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes a three-phase electric energy meter measurement anomaly monitoring device.

[0006] A three-phase electric energy meter measurement abnormality monitoring device, comprising:

[0007] An electric energy meter body, wherein a connecting wire is provided at the bottom of the electric energy meter body;

[0008] An inspection component for inspecting a plurality of connecting wires, the inspection component comprising a detection clamp for inspecting the connecting wires, a temperature detector, and a tester for displaying the inspection data;

[0009] A blocking structure for timely cutting off abnormal connecting lines includes a blocking knife for cutting off the connecting lines, a driving component for driving the blocking knife to move, and a warning button for cooperating with the driving component to alarm.

[0010] Preferably, the inspection component also includes an extension line installed between the inspection instrument and the detection clamp, the detection clamp is mounted on the connecting line, a mounting ring is provided on the upper surface of the connecting line, the temperature detector is mounted on the mounting ring and the probe contacts the surface of the connecting line.

[0011] Preferably, a connecting plate is provided on the front surface of the blocking knife, and the driving member for driving the connecting plate to move includes:

[0012] A lower rack is provided on the upper end of the connecting plate, and a driving cylinder is provided below the lower surface of the tester;

[0013] an upper rack located above the upper rack;

[0014] and a rotating gear meshingly connected with the lower rack and the upper rack at the same time.

[0015] Preferably, the blocking structure further comprises a mounting frame provided at the bottom of the tester, a vertical plate located inside the rotating gear is provided on the lower surface of the mounting frame, and a support shaft for supporting the rotating gear is provided on the side of the vertical plate.

[0016] Preferably, a support block located in front of the upper rack is provided on the lower surface of the tester, the warning button is located on the rear surface of the support block, and the piston rod inside the drive cylinder is connected to the rear end of the upper rack.

[0017] Preferably, a clamping member is provided between the tester and the electric energy meter body, and the clamping member comprises:

[0018] Two card plates are respectively located on both sides of the electric energy meter body, and a smoke sensor is provided at the rear end of each card plate;

[0019] A fixed slide fixed to the rear surface of the tester;

[0020] and a mounting rail fixed horizontally to the front surface of the pallet.

[0021] Preferably, the clamping member further comprises a friction pad provided on the inner side surface of the clamping plate, the fixed slide is in sliding engagement with the mounting rail, and a limiting bolt is screwed on the fixed slide.

[0022] Preferably, the lower surface of the tester is provided with a support member cooperating with the blocking knife, and the support member includes:

[0023] A rear support plate is vertically fixed to the lower surface of the tester and is located behind the connecting line, and a knife groove is opened on the surface of the rear support plate to cooperate with the blocking knife;

[0024] a plurality of protective baffles fixed to the front surface of the rear support plate, wherein the connecting line is located between two protective baffles;

[0025] And a limiting slider for supporting the blocking knife.

[0026] Preferably, a guide groove is provided on the side of the blocking knife, and a limiting slider is provided on the side of the protective partition, and the limiting slider is located in the guide groove.

[0027] Preferably, the upper surface of the tester is provided with a visual detector located in front of the display screen of the electric energy meter body, and the connecting line is provided with a flame retardant ring.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] (1) The present invention can detect abnormal current and temperature of the electric energy meter body at a high position in a timely manner. Compared with manual inspection, the burning of the connecting wire caused by abnormal temperature can be blocked in time, and the burnt connecting wire will not spread to other devices, thereby increasing the safety of the entire electric energy meter body and reducing the probability of safety hazards.

[0030] (2) The clamping member designed in the present invention can realize the detachable installation of the tester, and can adapt to different sizes of electric energy meters, thereby increasing the installation and use range of the entire tester. It can also assist in the detection of burnout and smoke of the electric energy meter, and conveniently and timely remind to cut off the connection between the electric energy meter and other devices.

[0031] (3) The present invention has a support structure designed to cooperate with the blocking knife to block the connecting wires, and to separate and protect multiple connecting wires from each other, so that a problem with one connecting wire will not affect other connecting wires, and the tests of multiple connecting wires will not affect each other. It can also support the blocking knife and increase the stability of the blocking knife's movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the three-phase electric energy meter detection device of the present invention;

[0033] Figure 2 It is a bottom view structural diagram of the three-phase electric energy meter detection device of the present invention;

[0034] Figure 3 It is a rear structural schematic diagram of the three-phase electric energy meter detection device of the present invention;

[0035] Figure 4 For the present invention Figure 3 Schematic diagram of the structure of the inspection component;

[0036] Figure 5 For the present invention Figure 4 Enlarged view of area A in the middle;

[0037] Figure 6 For the present invention Figure 3 Schematic diagram of the blocking structure;

[0038] Figure 7 For the present invention Figure 5 Schematic diagram of the structure of the driving component;

[0039] Figure 8 For the present invention Figure 1 Schematic diagram of the structure of the clamping member;

[0040] Figure 9 For the present invention Figure 3Schematic diagram of the structure of the middle support member;

[0041] In the figure: 100, inspection member; 101, inspection instrument; 102, visual detector; 103, extension line; 104, inspection clamp; 105, mounting ring; 106, temperature detector; 200, clamping member; 201, clamping plate; 202, mounting rail; 203, smoke sensor; 204, fixed slide; 205, limit bolt; 206, friction pad; 300, blocking structure; 301, driving member; 3011, rotating gear; 3012, Lower rack; 3013, upper rack; 3014, vertical plate; 3015, support shaft; 3016, drive cylinder; 3017, mounting frame; 302, connecting plate; 303, blocking knife; 304, warning button; 305, support block; 400, electricity meter body; 401, connecting line; 402, flame retardant ring; 500, supporting member; 501, rear support plate; 502, protective partition; 503, knife groove; 504, guide groove; 505, limit slider. DETAILED DESCRIPTION

[0042] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] Example 1

[0044] See also Figure 1 - Figure 7 The present application provides a three-phase electric energy meter measurement abnormality monitoring device, comprising:

[0045] The electric energy meter body 400 has a connecting line 401 provided at the bottom thereof;

[0046] The inspection component 100 for inspecting multiple connecting wires 401 can be used to detect abnormal current in the connecting wires 401 and whether there are abnormal temperatures at the connecting terminals. The inspection component 100 includes a detection clamp 104 for inspecting the connecting wires 401, a temperature detector 106, and a tester 101 for displaying the inspection data. The inspection data can be displayed on a display screen on the tester 101, and the data display principle of the tester 101 is the same as that of the prior art.

[0047] The blocking structure 300 can promptly cut off the abnormal connecting line 401. When the connecting line 401 is burned out at the connection point, the connecting line 401 can be cut off in time to prevent the burnout from spreading to other devices. The blocking structure 300 includes a blocking knife 303 for cutting off the connecting line 401, a driving component 301 for driving the blocking knife 303 to move, and an alarm button 304 that cooperates with the driving component 301 to alarm.

[0048] In this embodiment, preferably, the inspection component 100 also includes an extension line 103 installed between the inspection instrument 101 and the detection clamp 104. The detection clamp 104 can be replaced with other connectors for detecting the voltage of the connecting line 401. The detection clamp 104 is sleeved on the connecting line 401. A mounting ring 105 is provided on the upper surface of the connecting line 401. The temperature detector 106 is installed on the mounting ring 105 and the probe contacts the surface of the connecting line 401. The probe of the temperature detector 106 is used to detect temperature abnormalities in the connecting line 401 in a timely manner, and the detected temperature signal is transmitted to the drive cylinder 3016.

[0049] In this embodiment, preferably, a connecting plate 302 is provided on the front surface of the blocking knife 303. The connecting plate 302 may be L-shaped so that the upper end thereof extends to the lower rack 3012. The driving member 301 for driving the connecting plate 302 to move includes:

[0050] A lower rack 3012 is provided at the upper end of the connecting plate 302, and a drive cylinder 3016 is provided below the lower surface of the tester 101. The drive cylinder 3016 is longitudinally mounted below the mounting bracket 3017, and the piston rod inside the drive cylinder 3016 is initially in an extended state. The drive cylinder 3016 can drive the upper rack 3013 to move;

[0051] The upper rack 3013 is located above the upper rack 3013, and the teeth between the two are relatively distributed to facilitate engagement with the rotating gear 3011;

[0052] The rotating gear 3011 is meshed with the lower rack 3012 and the upper rack 3013 at the same time. The rotating gear 3011 can drive the upper rack 3013 and the upper rack 3013 to move simultaneously when it rotates.

[0053] In this embodiment, preferably, the blocking structure 300 also includes a mounting bracket 3017 provided at the bottom of the tester 101, and a vertical plate 3014 located on the inner side of the rotating gear 3011 is provided on the lower surface of the mounting bracket 3017, and the vertical plate 3014 supports the support shaft 3015. A bearing is embedded between the support shaft 3015 and the vertical plate 3014, and does not affect the rotation of the support shaft 3015. A support shaft 3015 supporting the rotating gear 3011 is provided on the side of the vertical plate 3014, and the support shaft 3015 and the rotating gear 3011 can rotate synchronously.

[0054] In this embodiment, preferably, a support block 305 located in front of the upper rack 3013 is provided on the lower surface of the tester 101, and the warning button 304 is located on the rear surface of the support block 305. While the upper rack 3013 moves, the warning button 304 will be pressed to upload the warning signal to remind maintenance personnel to perform maintenance and inspection in time. The piston rod inside the drive cylinder 3016 is connected to the rear end of the upper rack 3013 to facilitate the movement of the upper rack 3013.

[0055] In summary, when in use, the tester 101 can be installed in front of the electric energy meter body 400, and then several detection clamps 104 are respectively clamped on the connecting wire 401, and the position of the detection clamp 104 can be fixed by connecting with a hanger fixed on the lower surface of the electric energy meter body 400. The detection clamp 104 clamped on the connecting wire 401 is moved upward, and the hanger passes through the through hole on the detection clamp 104, and the screw ring is set on the hanger and contacts the lower surface of the detection clamp 104 to limit the position of the detection clamp 104. The position of the hanger and the screw ring is not drawn in this application. The detection clamp 104 is used to detect the current of the connecting wire 401 in real time, and the abnormality of the current can be detected in time. At the same time, the temperature detector 106 on the detection clamp 104 is close to the terminal of the connecting wire 401. If a temperature abnormality such as burnout occurs, the temperature detector 106 will detect it in time and transmit the detection signal to the drive cylinder 3016. The piston rod inside the drive cylinder 3016 will retract, driving the upper rack 3 013 moves forward. In the process of cutting off the connecting line 401, the upper rack 3013 moves forward and presses the warning button 304, uploading the warning signal to prompt the staff to repair and replace it in time, driving the rotating gear 3011 engaged with it to rotate. The rotating gear 3011 drives the lower rack 3012 to move backward, driving the connecting plate 302 and the blocking knife 303 to move backward, cutting off the burned connecting line 401, so that the burned connecting line 401 will not spread to other devices and cause impact. After cutting off, the piston rod inside the drive cylinder 3016 is extended again, driving the upper rack 3013 to move backward and disengage from the warning button 304, and the blocking knife 303 moves forward again to return to its original position, which is convenient for next use, increasing the safety of the electricity meter body 400, and can timely detect several abnormalities of the electricity meter body 400. Compared with climbing high to inspect the electricity meter body 400, it can reduce the probability of safety hazards and improve inspection efficiency.

[0056] Example 2

[0057] Reference Figure 8 , which is the second embodiment of the present invention.

[0058] In this embodiment, preferably, a clamping member 200 is provided between the tester 101 and the electric energy meter body 400. The clamping member 200 can realize the detachable installation of the tester 101 and can be adapted to electric energy meter bodies 400 of different sizes, thereby increasing the installation and use range of the entire test member 100. It can also assist in the detection of burnout and smoke of the electric energy meter body 400. The detection and uploading technology are all existing technologies, which facilitates timely reminders to block the connection between the electric energy meter body 400 and other devices. The clamping member 200 includes:

[0059] Two card plates 201 are located on both sides of the electric energy meter body 400. The rear end of the card plates 201 is provided with a smoke sensor 203, which can detect the smoke emitted by the electric energy meter body 400 due to burnout;

[0060] A fixed slide 204 fixed to the rear surface of the tester 101;

[0061] And a mounting rail 202 fixed horizontally on the front surface of the card board 201. The position of the mounting rail 202 can move as the card board 201 moves. The mounting rail 202 can be T-shaped.

[0062] In this embodiment, preferably, the clamping member 200 also includes a friction pad 206 arranged on the inner side of the clamping plate 201, and the inner surface of the friction pad 206 is provided with a corrugated groove to increase the friction resistance between the side of the electricity meter body 400, the fixed slide 204 and the mounting rail 202 are slidably matched, the distance between the two clamping plates 201 is adjustable, and a limiting bolt 205 is screwed on the fixed slide 204, and the limiting bolt 205 can limit the fixed slide 204 and the mounting rail 202.

[0063] In summary, when installing the tester 101, according to the size of the electricity meter body 400, the two clamping plates 201 are moved back to back, leaving enough space between them, and close to the electricity meter body 400. The clamping plates 201 are located on the side of the electricity meter body 400, and then the clamping plates 201 are moved relatively to allow the mounting rail 202 to move in the fixed slide 204. The friction pad 206 contacts the side of the electricity meter body 400 to increase the friction resistance between the two. At the same time, the flue gas sensor 203 is close to the middle position of the electricity meter body 400, and then the limiting bolt 205 is tightened so that its end contacts the mounting rail 202. The friction resistance of the contact is used to achieve a fastening connection between the fixed slide 204 and the mounting rail 202, and the tester 101 is fastened and installed on the electricity meter body 400 without affecting the operation of the electricity meter body 400 itself.

[0064] Example 3

[0065] Reference Figure 9 , which is the third embodiment of the present invention.

[0066] In this embodiment, preferably, a support member 500 is provided on the lower surface of the tester 101 to cooperate with the blocking knife 303. The support member 500 can cooperate with the blocking knife 303 to block the connecting wire 401 and separate and protect the multiple connecting wires 401 from each other, so that a problem with one connecting wire 401 will not affect other connecting wires 401, and the tests of the multiple connecting wires 401 will not affect each other. The support member 500 includes:

[0067] The rear support plate 501 is vertically fixed to the lower surface of the tester 101 and is located behind the connecting line 401. It does not affect the use of the connecting line 401. The surface of the rear support plate 501 is provided with a knife groove 503 that cooperates with the blocking knife 303, which does not affect the operation of the blocking knife 303.

[0068] A plurality of protective baffles 502 are fixed to the front surface of the rear support plate 501, and the connecting wires 401 are located between two protective baffles 502, which play a role in separating and protecting the multiple connecting wires 401;

[0069] And the limiting slider 505 supporting the blocking knife 303 has a T-shaped cross section. While sliding with the guide groove 504, it is not easy to separate from the blocking knife 303, thereby achieving stable support for the blocking knife 303.

[0070] In this embodiment, preferably, a guide groove 504 is provided on the side of the blocking knife 303, and a limiting slider 505 is provided on the side of the protective partition 502. The limiting slider 505 is located in the guide groove 504. The two slide together, which neither affects the movement of the blocking knife 303 nor supports the blocking knife 303.

[0071] In this embodiment, preferably, a visual detector 102 is provided on the upper surface of the tester 101 and is located in front of the display screen of the electricity meter body 400. The visual detector 102 can be used to detect the display screen on the electricity meter body 400. For example, if the display screen has garbled characters or a black screen, it can be detected in time and the abnormality can be uploaded. The detected information is uploaded as a prior art and is not explained in detail in this application to facilitate timely maintenance and inspection by the staff. A flame retardant ring 402 is provided on the connecting wire 401. The flame retardant ring 402 is made of non-flammable material to further prevent the burnt connecting wire 401 from spreading to the outside.

[0072] In summary, when in use, the rear support plate 501 is fixed to the lower surface of the electricity meter body 400, and the protective partition 502 is located between two adjacent connecting wires 401, and the limiting slider 505 is located in the guide groove 504. After a problem occurs in one of the connecting wires 401, the corresponding blocking knife 303 moves to cut off the connecting wire 401. While the blocking knife 303 moves, the limiting slider 505 slides in the guide groove 504 to support the blocking knife 303 and guide and limit the blocking knife 303, making it convenient for the tip of the blocking knife 303 to block the connecting wire 401. The protective partition 502 prevents adjacent connecting wires 401 from affecting each other.

[0073] Example 4

[0074] This embodiment is obtained by combining the first embodiment, the second embodiment and the third embodiment.

[0075] The working principle and usage process of the present invention are as follows: when in use, the inspection component 100 is installed on the electric energy meter body 400 through the clamping component 200, and multiple connecting wires 401 are detected at the same time to determine whether the current of the connecting wire 401 is abnormal, and whether the display screen of the electric energy meter body 400 is abnormal, and whether the electric energy meter body 400 is burned and smoking. If the connecting wire 401 is abnormal, the blocking structure 300 can be coordinated with the supporting component 500 to block the burned connecting wire 401 in time, and the warning button 304 is pressed to issue a warning. The blocked connecting wire 401 will not spread to other external devices, thereby increasing the safety of the electric energy meter body 400 and reducing the probability of safety hazards.

[0076] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A three-phase electric energy meter measurement abnormality monitoring device, characterized in that: include: An electric energy meter body (400), wherein a connecting line (401) is provided at the bottom of the electric energy meter body (400); A testing component (100) for testing a plurality of connecting wires (401), the testing component (100) comprising a testing clamp (104) for testing the connecting wires (401), a temperature detector (106), and a testing instrument (101) for displaying test data; A blocking structure (300) for timely cutting off an abnormal connecting line (401), the blocking structure (300) comprising a blocking knife (303) for cutting off the connecting line (401), a driving member (301) for driving the blocking knife (303) to move, and an alarm button (304) for cooperating with the driving member (301) to sound an alarm; The inspection component (100) further comprises an extension line (103) installed between the inspection instrument (101) and the inspection clamp (104); the inspection clamp (104) is sleeved on the connecting line (401); a mounting ring (105) is provided on the upper surface of the connecting line (401); the temperature detector (106) is installed on the mounting ring (105) and the probe contacts the surface of the connecting line (401); The front surface of the blocking knife (303) is provided with a connecting plate (302), and the driving member (301) for driving the connecting plate (302) to move includes: A lower rack (3012) is provided at the upper end of the connecting plate (302), and a driving cylinder (3016) is provided below the lower surface of the tester (101); an upper rack (3013) positioned above the upper rack (3013); and a rotating gear (3011) meshingly connected with both the lower rack (3012) and the upper rack (3013); The blocking structure (300) further comprises a mounting frame (3017) provided at the bottom of the tester (101); a vertical plate (3014) located inside the rotating gear (3011) is provided on the lower surface of the mounting frame (3017); and a support shaft (3015) supporting the rotating gear (3011) is provided on the side of the vertical plate (3014); The lower surface of the tester (101) is provided with a support block (305) located in front of the upper rack (3013), the warning button (304) is located on the rear surface of the support block (305), and the piston rod inside the drive cylinder (3016) is connected to the rear end of the upper rack (3013).

2. The three-phase electric energy meter measurement abnormality monitoring device according to claim 1, characterized in that: A clamping member (200) is provided between the tester (101) and the electric energy meter body (400), and the clamping member (200) comprises: Two card plates (201) are respectively located on both sides of the electric energy meter body (400), and a smoke sensor (203) is provided at the rear end of the card plates (201); A fixed slide (204) fixed to the rear surface of the tester (101); and a mounting rail (202) horizontally fixed on the front surface of the card plate (201).

3. The three-phase electric energy meter measurement abnormality monitoring device according to claim 2, characterized in that: The clamping member (200) further comprises a friction pad (206) provided on the inner side of the clamping plate (201); the fixed slide seat (204) is slidably matched with the mounting rail (202); and a limiting bolt (205) is screwed on the fixed slide seat (204).

4. The three-phase electric energy meter measurement abnormality monitoring device according to claim 1, characterized in that: The lower surface of the tester (101) is provided with a support member (500) that cooperates with the blocking knife (303), and the support member (500) includes: A rear support plate (501) is vertically fixed to the lower surface of the tester (101) and is located behind the connecting line (401), and a knife groove (503) is provided on the surface of the rear support plate (501) to cooperate with the blocking knife (303); A plurality of protective baffles (502) fixed to the front surface of the rear support plate (501), wherein the connecting line (401) is located between two protective baffles (502); And a limiting slider (505) supporting the blocking knife (303).

5. The three-phase electric energy meter measurement abnormality monitoring device according to claim 4 is characterized in that: A guide groove (504) is provided on the side of the blocking knife (303), and a limiting slider (505) is provided on the side of the protective partition (502), and the limiting slider (505) is located in the guide groove (504).

6. The three-phase electric energy meter measurement abnormality monitoring device according to claim 1, characterized in that: The upper surface of the tester (101) is provided with a visual detector (102) located in front of the display screen of the electric energy meter body (400), and the connecting line (401) is provided with a flame retardant ring (402).

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