Protective device for live working of electric energy meter

Abstract

The invention provides an electric energy meter hot-line work protection device comprising a safety box, the front surface of the safety box is provided with a wiring guide structure, and the interior of the safety box is provided with an adjusting structure; the wiring guide structure at least comprises a translation seat, the translation seat is in sliding connection with the front surface of the safety box, a micro motor is fixedly arranged at the bottom of the translation seat, the output end of the micro motor is connected with a first threaded lead screw, the first threaded lead screw is connected with a first sliding table, and a clamp part is arranged on the front surface of the first sliding table; the adjusting structure at least comprises a worm and a second threaded lead screw, the worm is rotatably connected to the interior of the safety box, the second threaded lead screw is rotatably connected to the interior of the safety box, the exterior of the second threaded lead screw is connected with a second sliding table and a worm gear part, and the worm gear part and the second threaded lead screw are coaxially arranged. The electric energy meter is automatically protected during hot-line work, the probability and frequency of direct contact between a human body and the meter body are effectively reduced, and the risk of electric shock is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of electric power, and in particular to a protective device for live-line operation of an electric energy meter. Background Art

[0002] As the name suggests, the live working safety protection of the electric energy meter allows the electric energy meter to be repaired or replaced without cutting off the circuit and affecting the normal power supply of the line. Since the electric energy meter is a fixed installation structure and is connected to multiple cables, electric shock accidents are prone to occur when working under normal power-on conditions. Therefore, it is necessary to use live working safety protection devices to protect the operations of power personnel.

[0003] After searching, it was found that a direct-type electric energy meter replacement wire fixer was disclosed in the invention patent with the Chinese patent announcement number CN114994380A. The electric energy meter replacement wire fixer in the invention patent clamps the cable with an insulating isolation clamp, and then the upper insulating plate and the insulating isolation clamp can move up and down under the elastic support of the spring lock and the compression spring to unplug the electric energy meter.

[0004] However, in combination with the structure of the direct-type electricity meter replacement and wiring device, it can be seen that, on the one hand, the wire unplugging process relies on the spring lock and the compression spring to be instantly ejected after storing elastic potential energy, which can easily lead to excessive plugging and unplugging due to excessive force, causing fatigue damage to the interface and the cable structure, thereby affecting the safety performance of the electricity meter after power is connected; on the other hand, when connecting the unplugged cable to the electricity meter, the electricity meter replacement and wiring device manually presses down the meter body, so that the meter body is pressed tightly against the insulating isolation clamp and drives the upper insulating plate to descend, so that the cable is re-plugged into the electricity meter interface. During the above process, the human body will directly contact the meter body, which can easily increase the risk of electric shock caused by misoperation. Summary of the invention

[0005] The purpose of the present invention is to provide a protective device for live working of an electric energy meter to solve the above-mentioned technical problems.

[0006] On the one hand, a protection device for live working of an electric energy meter is provided, comprising:

[0007] A safety box, wherein a wiring guide structure is arranged on the front of the safety box and an adjustment structure is arranged inside the safety box;

[0008] The wiring guide structure at least includes a translation seat, the translation seat is slidably connected to the front of the safety box, a micro motor is fixedly arranged at the bottom of the translation seat, an output end of the micro motor is connected to a first threaded screw, the first threaded screw is connected to a first slide, and a fixture is arranged on the front of the first slide;

[0009] The adjustment structure includes at least a worm and a second threaded screw, wherein the worm is rotatably connected to the interior of the safety box, the second threaded screw is rotatably connected to the interior of the safety box, the exterior of the second threaded screw is connected to a second slide and a worm gear, and the worm gear is coaxially arranged with the second threaded screw.

[0010] Preferably, a guide screw is arranged inside the translation seat, a buffer spring is sleeved on the outer side of the top of the guide screw, and an inner side of the first slide is slidably connected to the outer side of the guide screw.

[0011] Preferably, a charging compartment is provided at the bottom of the translation seat, a lithium battery block is provided inside the charging compartment, and the lithium battery block is electrically connected to the micro motor.

[0012] Preferably, the clamp member at least includes a clamp seat; the clamp seat is fixedly connected to the front side of the first slide, a first clamp ring is arranged on the front side of the clamp seat, a rotatable fine-tuning screw is arranged inside the clamp seat, and the outside of the fine-tuning screw is connected to a second clamp ring.

[0013] Preferably, the first clamping ring is a semicircular silicone ring, an insulating tape is wound around the outer side of the first clamping ring, and a leakage detection structure is provided on the front side of the first slide.

[0014] Preferably, the leakage detection structure at least comprises an electrode sheet, the electrode sheet is fixed to the inner side of the first clamp ring, and the outer side of the electrode sheet is fixedly connected to the first wire.

[0015] Preferably, the second clamping ring is a semicircular silicone ring, and an insulating tape is wound around the outer side of the second clamping ring.

[0016] Preferably, a detection light is fixedly arranged on the front side of the first slide, one side of the detection light is fixedly connected to an end of the first wire away from the electrode sheet, the other side of the detection light is fixedly connected to a second wire, and a ground wire is arranged at an end of the second wire away from the detection light.

[0017] Preferably, there are multiple worms, a sprocket coaxial with the worm is disposed at the bottom of the worm, a chain belt for driving the sprocket is disposed on the sprocket, the sprocket is coaxially connected to a rotating wheel disposed at the bottom of the safety box, and the outer side of the sprocket engages with the worm wheel.

[0018] Preferably, there are multiple second threaded screws, the thread circles of the multiple second threaded screws are mirror-symmetrical to each other, and the front side of the second slide table is fixedly connected to the back side of the translation seat.

[0019] In summary, the implementation of the embodiments of the present invention has the following beneficial effects:

[0020] The protective device for live working of an electric energy meter provided by the present invention automatically protects the electric energy meter when live working is performed, and can achieve insulation isolation without manual operation, thereby effectively reducing the probability and frequency of direct human contact with the meter body and reducing the risk of electric shock. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the present invention.

[0022] Figure 1 The figure is a schematic diagram of a protective device for live working of an electric energy meter in an embodiment of the present invention.

[0023] Figure 2 Schematic diagram of a safety box in an embodiment of the present invention.

[0024] Figure 3 4 is a cross-sectional view of a safety box in an embodiment of the present invention.

[0025] Figure 4 Schematic diagram of the translation seat in the embodiment of the present invention.

[0026] Figure 5 Schematic diagram of a clamp seat in an embodiment of the present invention.

[0027] Figure 6 Schematic diagram of a clamp seat in an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] like Figures 1 to 3 FIG. 1 is a schematic diagram of an embodiment of a protective device for live working of an electric energy meter provided by the present invention. In this embodiment, it includes:

[0030] A safety box 1, wherein a wiring guide structure 2 is arranged on the front of the safety box 1, and an adjustment structure 3 is arranged inside the safety box 1; the wiring guide structure 2 at least comprises a translation seat 201, wherein the translation seat 201 is slidably connected to the front of the safety box 1, a micro motor 202 is fixedly arranged at the bottom of the translation seat 201, an output end of the micro motor 202 is connected to a first threaded screw 203, the first threaded screw 203 is connected to a first slide 204, and a clamp 205 is arranged on the front of the first slide 204; the adjustment structure 3 at least comprises a worm 301 and a second threaded screw 302, wherein the worm 301 is rotatably connected to the inside of the safety box 1, the second threaded screw 302 is rotatably connected to the inside of the safety box 1, the outside of the second threaded screw 302 is connected to a second slide 303 and a worm gear 304, and the worm gear 304 is coaxially arranged with the second threaded screw 302. It is understandable that the front of the safety box 1 is provided with a wiring guide structure 2, and the interior of the safety box 1 is provided with an adjustment structure 3; the wiring guide structure 2 includes a translation seat 201 slidably connected to the front of the safety box 1, and a lithium battery block is provided inside the charging compartment 6, and the lithium battery block is electrically connected to the micro motor 202. The interior of the safety box 1 is rotatably connected with a second threaded screw 302, the external thread of the second threaded screw 302 is threadedly connected with a second slide 303, and the external of the second threaded screw 302 is coaxially fixed with a worm gear 304.

[0031] An embodiment, such as Figure 4 As shown, a guide screw 4 is arranged inside the translation seat 201, a buffer spring 5 is sleeved on the outer side of the top of the guide screw 4, and the inner side of the first slide 204 is slidably connected to the outer side of the guide screw 4. A charging compartment 6 is arranged at the bottom of the translation seat 201, and a lithium battery block is arranged inside the charging compartment 6, and the lithium battery block is electrically connected to the micro motor 202. It can be understood that the guide screw 4 is fixedly connected inside the translation seat 201, and the buffer spring 5 is sleeved and fixed on the outer side of the top of the guide screw 4, and the inner right side of the first slide 204 is slidably connected to the outer side of the guide screw 4. The micro motor 202 drives the first threaded screw 203, and the first threaded screw 203 drives the first slide 204 to move up and down along the guide screw 4, adjusting the upper and lower relative positions of the clamp seat 2051 and the wiring cable of the electric energy meter, and the buffer spring 5 can slow down the speed of the clamp seat 2051 when it moves up.

[0032] An embodiment, such as Figure 5 and Figure 6As shown, the clamp member 205 at least includes a clamp seat 2051; the clamp seat 2051 is fixedly connected to the front of the first slide 204, a first clamp ring 2052 is arranged on one side of the front of the clamp seat 2051, a rotatable fine-tuning screw 2053 is arranged inside the clamp seat 2051, and a second clamp ring 2054 is connected to the outside of the fine-tuning screw 2053. It can be understood that the clamp seat 2051 fixedly connected to the front of the first slide 204, the first clamp ring 2052 is fixedly connected to the right side of the front of the clamp seat 2051, and the fine-tuning screw 2053 is rotatably connected inside the clamp seat 2051, and the second clamp ring 2054 is threadedly connected to the outside of the fine-tuning screw 2053. The fine-tuning screw 2053 is rotated to drive the second clamp ring 2054 to move toward the first clamp ring 2052, and the looped cable is clamped and fixed, so as to adapt to cable structures of different sizes and diameters.

[0033] In one embodiment, the first clamp ring 2052 is a semicircular silicone ring, an insulating tape is wound around the outer side of the first clamp ring 2052, and a leakage detection structure 7 is provided on the front side of the first slide 204. The second clamp ring 2054 is a semicircular silicone ring, an insulating tape is wound around the outer side of the second clamp ring 2054. It is understandable that both the first clamp ring 2052 and the second clamp ring 2054 are semicircular silicone structures, and insulating tape is wound around the outer sides of the first clamp ring 2052 and the second clamp ring 2054. The insulation effect when clamping the cable can be improved, and the electrode sheet 701 is connected to the detection light 702 through the first wire.

[0034] In one embodiment, the leakage detection structure 7 at least includes an electrode sheet 701 , the electrode sheet 701 is fixed to the inner side of the first clamp ring 2052 , and the outer side of the electrode sheet 701 is fixedly connected to the first wire.

[0035] In one embodiment, a detection light 702 is fixedly arranged on the front of the first slide 204, one side of the detection light 702 is fixedly connected to the end of the first wire away from the electrode sheet 701, the other side of the detection light 702 is fixedly connected to the second wire, and a ground wire is arranged at the end of the second wire away from the detection light 702. It can be understood that the detection light 702 is connected to the ground wire through the second wire to form a path, and when the electrode sheet 701 detects leakage between the cable and the interface, it will trigger the detection light 702 to light up for warning.

[0036] In one embodiment, the number of the worm 301 is multiple, and a sprocket 8 coaxial with the worm 301 is provided at the bottom of the worm 301, and a chain belt that can drive the sprocket 8 is provided on the sprocket 8, and the sprocket 8 is coaxially connected to the rotating wheel 9 provided at the bottom of the safety box 1, and the outer side of the sprocket 8 meshes with the worm wheel 304. In this embodiment, the number of the worm 301 is specifically set to two, and the bottoms of the two worms 301 are coaxially fixed with sprockets 8, and the two sprockets 8 are connected through the chain belt transmission, and the left side of the bottom of the safety box 1 is rotatably connected with the rotating wheel 9, and the top of the rotating wheel 9 is coaxially fixed with one of the sprockets 8. The number of the worm wheel 304 is four, and the four worm wheel members 304 are respectively meshed with the outer sides of the two sprockets 8. The rotating wheel 9 drives the two sprockets 8, and the two sprockets 8 synchronously drive the two worms 301, and the two worms 301 are respectively meshed with the worm wheel members 304 of the four second threaded screws 302.

[0037] In one embodiment, the number of the second threaded screws 302 is multiple, the thread circles of the multiple second threaded screws 302 are mirror-symmetrical to each other, and the front of the second slide 303 is fixedly connected to the back of the translation seat 201. In this embodiment, the number of the second threaded screws 302 is four, wherein the thread circles of two second threaded screws 302 are mirror-symmetrical to the thread circles of the other two second threaded screws 302, the number of the second slides 303 and the translation seat 201 are both two, and the fronts of the two second slides 303 are fixedly connected to the backs of the two translation seats 201, respectively. The worm 301 is engaged to drive the worm wheel 304, and the worm wheel 304 is used to drive the second threaded screw 302. Since the thread circles of two of the second threaded screws 302 are mirror-symmetrical to the other two second threaded screws 302, the two second slides 303 move relative to or away from each other, that is, the two translation seats 201 respectively drive the clamp 205 to adjust the horizontal position with respect to the wiring cable of the electric energy meter.

[0038] In summary, the implementation of the embodiments of the present invention has the following beneficial effects:

[0039] The protective device for live working of an electric energy meter provided by the present invention automatically protects the electric energy meter when live working is performed, and can achieve insulation isolation without manual operation, thereby effectively reducing the probability and frequency of direct human contact with the meter body and reducing the risk of electric shock.

[0040] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A protective device for live working of electric energy meter, characterized in that: include: A safety box, wherein a wiring guide structure is arranged on the front of the safety box and an adjustment structure is arranged inside the safety box; The wiring guide structure at least includes a translation seat, the translation seat is slidably connected to the front of the safety box, a micro motor is fixedly arranged at the bottom of the translation seat, an output end of the micro motor is connected to a first threaded screw, the first threaded screw is connected to a first slide, and a fixture is arranged on the front of the first slide; The adjustment structure includes at least a worm and a second threaded screw, wherein the worm is rotatably connected to the interior of the safety box, the second threaded screw is rotatably connected to the interior of the safety box, the exterior of the second threaded screw is connected to a second slide and a worm gear, and the worm gear is coaxially arranged with the second threaded screw.

2. The protection device according to claim 1, characterized in that: A guide screw is arranged inside the translation seat, a buffer spring is sleeved on the outer side of the top of the guide screw, and an inner side of the first slide is slidably connected to the outer side of the guide screw.

3. The protection device according to claim 2, characterized in that: A charging compartment is arranged at the bottom of the translation seat, a lithium battery block is arranged inside the charging compartment, and the lithium battery block is electrically connected to the micro motor.

4. The protection device according to claim 3, characterized in that: The clamp member at least includes a clamp seat; the clamp seat is fixedly connected to the front of the first slide, a first clamp ring is arranged on one side of the front of the clamp seat, a rotatable fine-tuning screw is arranged inside the clamp seat, and a second clamp ring is connected to the outside of the fine-tuning screw.

5. The protection device according to claim 4, characterized in that: The first clamping ring is a semicircular silicone ring, an insulating tape is wound around the outer side of the first clamping ring, and a leakage detection structure is arranged on the front side of the first slide.

6. The protection device according to claim 5, characterized in that: The leakage detection structure at least comprises an electrode sheet, the electrode sheet is fixed to the inner side of the first clamp ring, and the outer side of the electrode sheet is fixedly connected to the first wire.

7. The protection device according to claim 6, characterized in that: The second clamping ring is a semicircular silicone ring, and an insulating tape is wound around the outer side of the second clamping ring.

8. The protection device according to claim 7, characterized in that: A detection light is fixedly arranged on the front of the first slide, one side of the detection light is fixedly connected to an end of the first wire away from the electrode sheet, the other side of the detection light is fixedly connected to a second wire, and a ground wire is arranged at an end of the second wire away from the detection light.

9. The protection device according to claim 8, characterized in that: There are multiple worms, a sprocket coaxial with the worm is arranged at the bottom of the worm, a chain belt for driving the sprocket is arranged on the sprocket, the sprocket is coaxially connected to a rotating wheel arranged at the bottom of the safety box, and the outer side of the sprocket meshes with the worm wheel.

10. The protection device according to claim 9, characterized in that: There are multiple second threaded screws, and the thread circles of the multiple second threaded screws are mirror-symmetrical to each other. The front side of the second slide table is fixedly connected to the back side of the translation seat.

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