Metering abnormity monitoring device for three-phase electric energy meter

Abstract

The invention discloses a metering abnormity monitoring device for a three-phase electric energy meter, relates to the technical field of three-phase electric energy meters, and solves the technical problems that an electric energy meter at a relatively high position needs to be manually inspected and climbs high, and if a wiring terminal is burnt out, the wiring terminal cannot be cut off in time. Comprising an electric energy meter body, the bottom of which is provided with a connecting line; the inspection component is used for detecting the plurality of connecting wires and comprises a pair of detection pliers for detecting the connecting wires, a temperature detector and an inspection instrument for displaying detection data; the blocking structure is used for timely cutting off the abnormal connecting line and comprises a blocking knife used for cutting off the connecting line; according to the invention, current abnormity and temperature abnormity of the electric energy meter body at a high position can be detected in time, compared with manual inspection, connection line burnout caused by temperature abnormity can be blocked in time, the burnout connection line cannot spread to other devices, the use safety of the whole electric energy meter body is improved, and the occurrence probability of potential safety hazards is reduced.

Description

Technical Field

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

[0002] With the rapid development of the power system, the accuracy and reliability of the electric energy meter as an important device for power measurement are crucial to the stable operation of the power system. Therefore, corresponding detection devices will be used.

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

[0004] The above-mentioned existing patents require manual inspection of electric energy meters at higher locations, which requires climbing, is dangerous and has low inspection efficiency. Moreover, if the electric energy meter terminals burn out and cannot be cut off in time, surrounding devices may be affected, and even fire and other dangerous problems may occur. 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 abnormality monitoring device.

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

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

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

[0009] A blocking structure for timely cutting off abnormal connecting lines comprises 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 a driving member for driving the connecting plate to move includes:

[0012] A lower rack is provided at 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 arranged at the bottom of the tester, a vertical plate located inside the rotating gear is arranged on the lower surface of the mounting frame, and a supporting shaft for supporting the rotating gear is arranged 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 arranged at the rear end of the card plates;

[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 arranged on the inner side surface of the clamping plate, the fixed slide seat is slidably matched with the mounting rail, and a limiting bolt is screwed on the fixed slide seat.

[0022] Preferably, the lower surface of the inspection instrument is provided with a supporting member cooperating with the blocking knife, and the supporting member comprises:

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

[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 in 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 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 be adapted to electric energy meters of different sizes, 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 provide a convenient and timely reminder to cut off the connection between the electric energy meter and other devices.

[0031] (3) The support structure designed in the present invention can cooperate with the blocking knife to block the connecting wires, and can also 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 a three-phase electric energy meter detection device of the present invention;

[0033] Figure 2 It is a bottom view structural schematic 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 Structural diagram of the inspection component;

[0036] Figure 5 For the present invention Figure 4 A magnified image of area A;

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

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

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

[0040] Fig. 9 For the present invention Figure 3Structural schematic diagram of the middle support member;

[0041] In the figure: 100, inspection member; 101, inspection instrument; 102, visual detector; 103, extension line; 104, detection 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, electric energy meter body; 401, connecting line; 402, flame retardant ring; 500, support member; 501, rear support plate; 502, protective partition; 503, knife groove; 504, guide groove; 505, limit slider. DETAILED DESCRIPTION

[0042] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present 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 creative work are within the scope of protection of the present invention.

[0043] Embodiment 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 at the bottom thereof;

[0046] The inspection component 100 for inspecting multiple connecting wires 401 can be used to inspect the abnormal current of the connecting wires 401 and whether the temperature of the connecting terminals is abnormal. The inspection component 100 includes a detection clamp 104 for inspecting the connecting wires 401, a temperature detector 106, and an inspection instrument 101 for displaying the inspection data. The inspection data can be displayed on the display screen of the inspection instrument 101, and the data display principle of the inspection instrument 101 is the existing technology;

[0047] The blocking structure 300 can timely cut off the abnormal connection line 401. When the connection point of the connection line 401 is burned out, the connection line 401 can be cut off in time to prevent the spread to other devices. The blocking structure 300 includes a blocking knife 303 for cutting off the connection line 401, a driving component 301 for driving the blocking knife 303 to move, and a warning button 304 cooperating 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 the temperature abnormality of the connecting line 401 in time, and the detected temperature signal is transmitted to the driving cylinder 3016.

[0049] In this embodiment, preferably, a connecting plate 302 is provided on the front surface of the blocking knife 303, and the connecting plate 302 may be L-shaped, so that the upper end thereof extends to the lower rack 3012, and 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 driving cylinder 3016 is provided below the lower surface of the tester 101. The driving cylinder 3016 is longitudinally installed below the mounting frame 3017, and the initial position of the piston rod inside the driving cylinder 3016 is in an extended state, and the driving 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 therebetween are relatively distributed, so as to facilitate meshing with the rotating gear 3011;

[0052] And the rotating gear 3011 is meshed and connected with the lower rack 3012 and the upper rack 3013 at the same time. The rotation of the rotating gear 3011 can drive the upper rack 3013 and the upper rack 3013 to move simultaneously.

[0053] In this embodiment, preferably, the blocking structure 300 also includes a mounting frame 3017 arranged at the bottom of the inspection instrument 101, and a vertical plate 3014 located on the inner side of the rotating gear 3011 is arranged on the lower surface of the mounting frame 3017, and the vertical plate 3014 supports the support shaft 3015, and a bearing is embedded between the support shaft 3015 and the vertical plate 3014 without affecting the rotation of the support shaft 3015. A support shaft 3015 supporting the rotating gear 3011 is arranged 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. When the upper rack 3013 moves, the warning button 304 is pressed to upload a 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 clamped on the connecting wire 401 respectively, and the position of the detection clamp 104 can be fixed by connecting with a suspension rod fixed on the lower surface of the electric energy meter body 400, and the detection clamp 104 clamped on the connecting wire 401 is moved upward, and the suspension rod passes through the through hole on the detection clamp 104, and the screw ring is set on the suspension rod and contacts the lower surface of the detection clamp 104, and the position of the detection clamp 104 is limited and fixed. The position of the suspension rod 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 discovered 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 burning occurs, the temperature detector 106 detects it in time and transmits the detection signal to the drive cylinder 3016. The piston rod inside the drive cylinder 3016 retracts, 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 meshing with it to rotate, and 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, and cutting off the burnt connecting line 401, so that the burnt connecting line 401 will not spread to other devices and cause impact. After cutting off, the piston rod inside the driving cylinder 3016 extends out 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 electric energy meter body 400, and can detect several abnormalities of the electric energy meter body 400 in time. Compared with the climbing inspection of the electric energy meter body 400, it can reduce the probability of safety hazards and improve the inspection efficiency.

[0056] Embodiment 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, and can assist in the detection of burning and smoking of the electric energy meter body 400. The detection and uploading technologies are all existing technologies, which are convenient for timely reminding 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 respectively located on both sides of the electric energy meter body 400. A smoke sensor 203 is arranged at the rear end of the card plate 201 to detect the smoke emitted by the electric energy meter body 400 due to burning;

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

[0061] And a mounting rail 202 horizontally fixed on the front surface of the card board 201, the position of the mounting rail 202 can move along with the movement of the card board 201, and 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 electric energy meter body 400, the fixed slide 204 and the mounting rail 202 are slidably matched, and the distance between the two clamping plates 201 is adjustable. 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 electric energy meter body 400, the two clamping plates 201 are moved back to back, leaving enough space between them, and close to the electric energy meter body 400, the clamping plates 201 are located on the side of the electric energy 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, and the friction pad 206 contacts the side of the electric energy meter body 400 to increase the friction resistance between the two. At the same time, the smoke sensor 203 is close to the middle position of the electric energy meter body 400, and then the limit bolt 205 is tightened so that its end contacts the mounting rail 202, and the friction resistance of the contact is used to achieve a tight connection between the fixed slide 204 and the mounting rail 202, and the tester 101 is firmly installed on the electric energy meter body 400 without affecting the operation of the electric energy meter body 400 itself.

[0064] Embodiment 3

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

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

[0067] The rear support plate 501 is vertically fixed on the lower surface of the tester 101 and is located behind the connecting line 401, which 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 on 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 of 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 slidingly cooperating 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 opened on the side of the blocking knife 303, and a limiting slider 505 is set 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 electric energy meter body 400. The visual detector 102 can be used to detect the display screen on the electric energy meter body 400. For example, if garbled characters or a black screen appears on the display screen, the abnormality can be detected in time and the detected information can be uploaded. The information uploaded is 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 electric energy 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, and 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, so that the tip of the blocking knife 303 can block the connecting wire 401 conveniently, and the protective partition 502 prevents adjacent connecting wires 401 from affecting each other.

[0073] Embodiment 4

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

[0075] The working principle and use 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 smoked. If the connecting wire 401 is abnormal, the blocking structure 300 can be cooperated with the supporting component 500 to block the burnt 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 rather than to limit it. 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 arranged 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 testing data; A blocking structure (300) for timely cutting off an abnormal connection line (401), the blocking structure (300) comprising a blocking knife (303) for cutting off the connection line (401), a driving component (301) for driving the blocking knife (303) to move, and a warning button (304) for cooperating with the driving component (301) to sound an alarm.

2. A three-phase electric energy meter measurement abnormality monitoring device according to claim 1, characterized in that: 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 mounted on the mounting ring (105) and the probe contacts the surface of the connecting line (401).

3. A three-phase electric energy meter measurement abnormality monitoring device according to claim 1, characterized in that: The front surface of the blocking knife (303) is provided with a connecting plate (302), and the driving member (301) driving the connecting plate (302) to move comprises: A lower rack (3012) is arranged at the upper end of the connecting plate (302), and a driving cylinder (3016) is arranged below the lower surface of the inspection instrument (101); an upper rack (3013) located above the upper rack (3013); and a rotating gear (3011) meshingly connected with the lower rack (3012) and the upper rack (3013).

4. A three-phase electric energy meter measurement abnormality monitoring device according to claim 3, characterized in that: The blocking structure (300) further comprises a mounting frame (3017) arranged at the bottom of the inspection instrument (101), the lower surface of the mounting frame (3017) being provided with a vertical plate (3014) located inside the rotating gear (3011), and the side of the vertical plate (3014) being provided with a supporting shaft (3015) supporting the rotating gear (3011).

5. A three-phase electric energy meter measurement abnormality monitoring device according to claim 4, characterized in that: 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).

6. The three-phase electric energy meter measurement abnormality monitoring device according to claim 1 is 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) respectively located on both sides of the electric energy meter body (400), and a smoke sensor (203) is arranged at the rear end of the card plate (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).

7. A three-phase electric energy meter measurement abnormality monitoring device according to claim 6, characterized in that: The clamping member (200) further comprises a friction pad (206) arranged on the inner side of the clamping plate (201); the fixed slide seat (204) is slidably matched with the mounting rail (202); and a limit bolt (205) is screwed on the fixed slide seat (204).

8. The three-phase electric energy meter measurement abnormality monitoring device according to claim 1 is characterized in that: The lower surface of the inspection instrument (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) vertically fixed on the lower surface of the tester (101) and located behind the connecting line (401), wherein a knife groove (503) cooperating with the blocking knife (303) is formed on the surface of the rear support plate (501); 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).

9. A three-phase electric energy meter measurement abnormality monitoring device according to claim 8, characterized in that: A guide groove (504) is provided on the side of the blocking knife (303), and a limit slider (505) is provided on the side of the protective partition (502), and the limit slider (505) is located in the guide groove (504).

10. 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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