Safe and reliable electric energy metering box

Abstract

The invention belongs to the technical field of electric energy metering boxes, and discloses a safe and reliable electric energy metering box, which comprises a cabinet body and a main switch, and further comprises a fixing mechanism arranged in the cabinet body; wherein the fixing mechanism comprises a cabinet door inserted into the cabinet body, four rotating blocks are arranged in the cabinet body, and four threaded rods are fixedly mounted at the top ends of the four rotating blocks respectively; when a threaded rod rotates, inserting blocks can move out of the cabinet door, when the four inserting blocks are away from the interior of the cabinet door at the same time, a compressed second elastic piece can push a pushing block, the pushing block can push the cabinet door out of the interior of the cabinet body, and finally a triggering mechanism is triggered through flames, so that the inserting blocks cancel fixing of the cabinet door and are matched with a pushing assembly; the danger that personnel are exposed in a dense smoke or high-temperature environment is avoided, the risk that operators are scalded is reduced, and safe and efficient implementation conditions are created for subsequent fire extinguishing operation.

Description

Technical Field

[0001] The invention belongs to the technical field of electric energy metering boxes, and in particular is a safe and reliable electric energy metering box. Background Art

[0002] The electric energy meter box is an integral or spliced ​​box designed specifically for the placement and protection of electric energy meters and their ancillary equipment such as supporting switches.

[0003] At present, traditional safe and reliable electricity meter boxes widely used in power systems are usually installed in designated locations in accordance with strict standards, and carry out electricity metering work continuously and stably, providing key data support for power system operation monitoring and electricity fee accounting; however, in actual use, if the internal circuits cause a fire due to aging, short circuit, or overload, the meter box shell is mostly made of stainless steel. Although stainless steel has the advantages of corrosion resistance and high strength, it will quickly absorb and conduct a large amount of heat under the high temperature of the fire, causing the shell temperature to rise sharply and become extremely hot. At this time, even if rescue personnel want to urgently open the meter box for fire extinguishing operations, they face great difficulties. The high temperature shell not only increases the risk of burns for operators, but may also cause the fire to spread further due to prolonged operation time, thereby greatly reducing the possibility of safe and efficient implementation of subsequent fire extinguishing operations. Summary of the Invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a safe and reliable electric energy metering box.

[0005] To achieve the above object, the present invention provides the following technical solution: a safe and reliable electric energy meter box, comprising a cabinet and a main switch, and further comprising: A fixing mechanism, which is arranged inside the cabinet; The fixing mechanism includes a cabinet door inserted into the cabinet body, and four rotating blocks are provided inside the cabinet body. Four threaded rods are fixedly installed on the tops of the four rotating blocks, and four inserting blocks are threadedly connected to the surfaces of the four threaded rods. The surfaces of the four threaded rods are provided with sliding grooves located inside the cabinet door. A trigger mechanism is provided inside the cabinet and can drive the rotating block to rotate; The pushing component is arranged inside the cabinet and can push the cabinet door to move out of the cabinet.

[0006] Preferably, the trigger mechanism includes an elastic part 1 fixedly connected to the inside of the cabinet, one end of the elastic part 1 is fixedly mounted with a sliding sleeve located on the surface of the rotating block, and the elastic part 1 is in a compressed state, the interior of the sliding sleeve is rollingly connected with a ball located inside the slide groove, the number of the sliding sleeves is four, and each two form a group, and the two sliding sleeves are connected by a nylon rope, and the nylon rope has a high tensile strength.

[0007] Preferably, the pushing assembly includes a pushing block slidably connected to the interior of the cabinet, and the pushing block is elastically connected to the cabinet via a second elastic member.

[0008] Preferably, it also includes: The damping mechanism is arranged inside the cabinet, and the damping mechanism includes a mounting groove opened inside the cabinet, a sliding rod is slidably connected inside the mounting groove, the mounting groove and the sliding rod are elastically connected by three elastic parts, and a grinding wheel is rotatably connected inside the bottom end of the sliding rod.

[0009] Preferably, it also includes: A power-off mechanism is arranged inside the cabinet. The power-off mechanism includes a square shell fixedly connected to the inside of the cabinet. A pull rod is slidably connected to the inside of the square shell, and the pull rod is L-shaped. The pull rod and the cabinet are elastically connected through four elastic parts. A steel wire rope is fixedly installed on the top of the pull rod, and one end of the steel wire rope extends to the inside of the cabinet and is connected to the push block.

[0010] Preferably, limiting grooves are provided on both sides of the interior of the square shell, and support blocks located inside the limiting grooves are fixedly mounted on both sides of the surface of the pull rod.

[0011] Preferably, two positioning plates are fixedly installed inside the cabinet, and the two positioning plates are designed to be transversely symmetrical with respect to the center of the pushing block.

[0012] Preferably, the chute is of curved design, and the surface of the ball is of smooth design, and the inner wall of the chute is fully fitted with the surface of the ball.

[0013] Preferably, a support ring is rotatably connected inside the cabinet, and the bottom end of the support ring is fixedly connected to one end of the rotating block, and the support ring is T-shaped.

[0014] Preferably, one side of the insert block is designed as a slope, and the surface of the insert block fits against the inner wall of the cabinet door.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention is a process in which the nylon rope is burned by flames, and the compressed elastic member 1 pushes the sliding sleeve to move, and the sliding sleeve pushes the ball to roll along the inside of the slide groove. During the rolling process, the rotating block and the threaded rod are driven to rotate. When the threaded rod rotates, the plug block moves out of the interior of the cabinet door. When the four plug blocks are away from the interior of the cabinet door at the same time, the compressed elastic member 2 pushes the pushing block, and the pushing block pushes the cabinet door out of the interior of the cabinet body. Finally, the triggering mechanism is triggered by the flame, so that the plug block cancels the fixation of the cabinet door, and cooperates with the pushing component to avoid the danger of personnel being exposed in thick smoke or high temperature environment, reduce the risk of burns to operators, and create safe and efficient implementation conditions for subsequent fire extinguishing operations.

[0016] The present invention squeezes the air inside the cabinet into the installation groove when the pushing block pushes the cabinet door to move, and the flowing air pushes the sliding rod and the elastic member three to move downward, and the elastic member three squeezes the moving cabinet door. Finally, the elastic member three squeezes the elastic member three, and the movement of the cabinet door is resisted and will not move outward quickly, thereby improving the safety performance of the equipment and providing more reliable safety protection for responding to emergency situations such as sudden fires.

[0017] The present invention links the steel wire rope through the moving pushing block, and the steel wire rope pulls the pull rod to retract into the square shell. When the pull rod moves, the elastic part 4 will be compressed, and when the pull rod moves, it will push the operating handle on the surface of the main switch to rotate, thereby cutting off the power to the entire equipment. Finally, the moving pushing block links the steel wire rope to make the pull rod cut off the power to the entire equipment, effectively avoiding secondary disasters caused by electrical short circuits and arcs, thereby significantly improving the safety protection level at the fire scene. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram showing the interior of the cabinet of the present invention; Figure 3 This is a schematic diagram of a sectional view of a cabinet according to the present invention; Figure 4 This is a schematic diagram showing the fixing mechanism of the present invention; Figure 5 For the present invention Figure 4 A is an enlarged schematic diagram; Figure 6 A schematic diagram showing the damping mechanism of the present invention; Figure 7 This is a schematic diagram showing the power-off mechanism of the present invention; Figure 8 This is an enlarged schematic diagram of point B in Figure 7 of the present invention.

[0019] In the figure: 1. Cabinet body; 2. Main switch; 3. Fixing mechanism; 301. Cabinet door; 302. Rotating block; 303. Threaded rod; 304. Slide groove; 305. Insert block; 4. Trigger mechanism; 401. Elastic part 1; 402. Sliding sleeve; 403. Ball bearing; 404. Nylon rope; 5. Pushing assembly; 501. Elastic part 2; 502. Pushing block; 6. Damping mechanism; 601. Mounting groove; 602. Slide rod; 603. Elastic part 3; 604. Grinding wheel; 7. Power-off mechanism; 701. Square shell; 702. Pull rod; 703. Elastic part 4; 704. Wire rope; 8. Limiting groove; 9. Support block; 10. Positioning plate; 11. Support ring. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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 efforts are within the scope of protection of the present invention.

[0021] like Figures 1 to 8 As shown, the present invention provides a safe and reliable electric energy metering box, comprising a cabinet 1 and a main switch 2, and further comprising: A fixing mechanism 3 is provided inside the cabinet 1; The fixing mechanism 3 includes a cabinet door 301 inserted into the cabinet body 1. Four rotating blocks 302 are provided inside the cabinet body 1. Threaded rods 303 are fixedly installed on the top of the rotating blocks 302. Insertion blocks 305 are threadedly connected to the surface of the threaded rods 303. The surface of the threaded rods 303 is provided with a sliding groove 304 located inside the cabinet door 301. The trigger mechanism 4 is disposed inside the cabinet 1 and can drive the rotating block 302 to rotate; The pushing assembly 5 is disposed inside the cabinet 1 and is capable of pushing the cabinet door 301 out of the cabinet 1 .

[0022] When a fire occurs during operation of the equipment and the fire is large, the flame will trigger the trigger mechanism 4, and the trigger mechanism 4 will drive the rotating block 302 to rotate, and the rotating block 302 will drive the threaded rod 303 to rotate. Since the threaded rod 303 is threadedly connected to the plug block 305, when the threaded rod 303 rotates, the plug block 305 will drop on the surface of the threaded rod 303, and then the plug block 305 will move out of the interior of the cabinet door 301. When the four plug blocks 305 are away from the interior of the cabinet door 301 at the same time, the pushing component 5 will push the cabinet door 301 out of the interior of the cabinet body 1, and all the components entering the interior of the cabinet body 1 will be exposed, thereby facilitating the operator to perform fire extinguishing work.

[0023] like Figure 4 and Figure 5 As shown, the trigger mechanism 4 includes an elastic member 401 fixedly connected to the inside of the cabinet 1, and one end of the elastic member 401 is fixedly installed with a sliding sleeve 402 located on the surface of the rotating block 302, and the elastic member 401 is in a compressed state. The inside of the sliding sleeve 402 is rollingly connected to the ball 403 located inside the slide groove 304. There are four sliding sleeves 402, and each two form a group. The two sliding sleeves 402 are connected by a nylon rope 404, and the nylon rope 404 has a high tensile strength.

[0024] Through the design of the trigger mechanism 4, after the flame burns the nylon rope 404, the compressed elastic member 401 will push the sliding sleeve 402 to move, and the sliding sleeve 402 will push the ball 403 to roll along the inside of the slide groove 304. During the rolling process, the rotating block 302 will be driven to rotate, and the rotating block 302 will drive the insertion block 305 to move out of the cabinet door 301.

[0025] like Figure 3 and Figure 4 As shown, the pushing assembly 5 includes a pushing block 502 slidably connected to the interior of the cabinet 1 , and the pushing block 502 is elastically connected to the cabinet 1 via a second elastic member 501 .

[0026] Through the design of the pushing component 5, when the cabinet door 301 is installed, the pushing block 502 will be squeezed, and the elastic member 2 501 will always be in a compressed state. When the fixation of the cabinet door 301 is released, the compressed elastic member 2 501 will push the pushing block 502, and the moving pushing block 502 will push the cabinet door 301 out of the interior of the cabinet body 1.

[0027] like Figure 4 and Figure 6 As shown, it also includes: The damping mechanism 6 is arranged inside the cabinet 1. The damping mechanism 6 includes a mounting groove 601 opened inside the cabinet 1. The interior of the mounting groove 601 is slidably connected to a slide rod 602. The mounting groove 601 and the slide rod 602 are elastically connected by an elastic member 603. The bottom end of the slide rod 602 is internally rotatably connected to a grinding wheel 604.

[0028] Through the design of the damping mechanism 6, when the pushing block 502 pushes the cabinet door 301 to move, the air inside the cabinet body 1 will be squeezed, and the squeezed air will enter the installation groove 601, and then the flowing air will push the slide rod 602 and the elastic member three 603 to move downward, and the elastic member three 603 will squeeze the moving cabinet door 301, and use the movement of the cabinet door 301 to drive the grinding wheel 604 to rotate, so as not to interfere with the movement of the cabinet door 301. Through the squeezing of the elastic member three 603, the cabinet door 301 can move smoothly.

[0029] like Figure 2 、 Figure 7and Figure 8 As shown, it also includes: The power-off mechanism 7 is arranged inside the cabinet 1. The power-off mechanism 7 includes a square shell 701 fixedly connected to the inside of the cabinet 1. The inside of the square shell 701 is slidably connected to a pull rod 702, and the pull rod 702 is L-shaped. The pull rod 702 and the cabinet 1 are elastically connected through an elastic member 703. A steel wire rope 704 is fixedly installed on the top of the pull rod 702, and one end of the steel wire rope 704 extends to the inside of the cabinet 1 and is connected to the push block 502. Limiting grooves 8 are provided on both sides of the inside of the square shell 701, and support blocks 9 located inside the limiting grooves 8 are fixedly installed on both sides of the surface of the pull rod 702.

[0030] Through the design of the power-off mechanism 7, when the pushing block 502 moves, it will pull the wire rope 704, and the wire rope 704 will pull the pull rod 702 to retract into the square shell 701. When the pull rod 702 moves, the elastic part 703 will be compressed, and the pull rod 702 is an L-shaped design, so when the pull rod 702 moves, it will push the operating handle on the surface of the main switch 2 to rotate, thereby cutting off the power to the entire device. Through the design of the limit slot 8 and the support block 9, when the pull rod 702 moves, it will drive the support block 9 to slide inside the limit slot 8. Since the surface of the support block 9 fits against the inner wall of the limit slot 8, when the support block 9 moves, the limit slot 8 can limit the pull rod 702 and the support block 9.

[0031] like Figure 4 and Figure 5 As shown, two positioning plates 10 are fixedly installed inside the cabinet 1, and the two positioning plates 10 are designed to be laterally symmetrical about the center of the push block 502, the slide groove 304 is curved, and the surface of the ball 403 is smooth, and the inner wall of the slide groove 304 fully fits the surface of the ball 403.

[0032] Through the design of the positioning plate 10, when the cabinet door 301 is inserted into the cabinet body 1, one side of the cabinet door 301 will contact the surface of the positioning plate 10, and then the positioning plate 10 can position the cabinet door 301, ensuring that the insertion block 305 accurately enters the interior of the cabinet door 301. Through the design of the slide groove 304 and the ball 403, since the slide groove 304 is curved and the inner wall of the slide groove 304 fully fits the surface of the ball 403, when the ball 403 moves, it will move along the curved direction of the slide groove 304, ensuring that the rotating block 302 can rotate, and the ball 403 is smooth, thereby ensuring that the ball 403 moves more smoothly.

[0033] like Figure 4 and Figure 5As shown, the cabinet body 1 is internally rotatably connected with a support ring 11, and the bottom end of the support ring 11 is fixedly connected to one end of the rotating block 302. The support ring 11 is T-shaped, one side of the insert block 305 is inclined, and the surface of the insert block 305 fits the inner wall of the cabinet door 301.

[0034] Through the design of the support ring 11, when the rotating block 302 rotates, it will drive the support ring 11 to rotate inside the cabinet 1. Since the support ring 11 is a T-shaped design, the rotating support ring 11 can support and limit the rotating block 302. Through the design of the plug block 305, since one side of the plug block 305 is a sloped design, it is convenient for the plug block 305 to enter the interior of the cabinet door 301, and the surface of the plug block 305 fits with the inner wall of the cabinet door 301, thereby ensuring the stability of the cabinet door 301.

[0035] The working principle and use process of the present invention: First, the operator installs the equipment at the designated location. When the equipment is working and a fire occurs, and the fire is large, the nylon rope 404 will be baked. When the flame temperature is higher than the melting point of the nylon rope 404, the nylon rope 404 will be burned. When the nylon rope 404 is burned, the compressed elastic member 1 401 will push the sliding sleeve 402 to move, and the sliding sleeve 402 will push the ball 403 to roll along the inside of the slide groove 304. During the rolling process, the rotating block 302 and the threaded rod 303 will be driven to rotate. When the threaded rod 303 rotates, the insert block 305 will move out of the cabinet door 301. When the four insert blocks 305 are away from the inside of the cabinet door 301 at the same time, the compressed elastic member 2 501 will push the push block 502, and the push block 502 will push the cabinet door 301 out of the cabinet body 1. When the push block 502 pushes the cabinet door 301 to move, the air inside the cabinet body 1 is squeezed into the installation groove 601, and the flowing air pushes the slide bar 602 and the elastic member 3 603 downward. The elastic member 3 603 squeezes the moving cabinet door 301 and uses the movement of the cabinet door 301 to drive the grinding wheel 604 to rotate, thereby not interfering with the movement of the cabinet door 301. The grinding wheel 604 squeezes the cabinet door 301, so that the cabinet door 301 will not quickly break away from the outside due to resistance when moving, thereby preventing the cabinet door 301 from being opened quickly due to uneven force. At the same time, when the pushing block 502 moves, it will pull the wire rope 704, and the wire rope 704 will pull the pull rod 702 to retract into the square shell 701. When the pull rod 702 moves, the elastic part 703 will be compressed, and when the pull rod 702 moves, it will push the operating handle on the surface of the main switch 2 to rotate, thereby cutting off the power to the entire equipment, thereby improving the safety protection level at the fire scene and finally completing the operation process.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A safe and reliable electric energy metering box, comprising a cabinet and a main switch, characterized in that: Also includes: A fixing mechanism, which is arranged inside the cabinet; The fixing mechanism includes a cabinet door inserted into the cabinet body, and four rotating blocks are provided inside the cabinet body. Four threaded rods are fixedly installed on the tops of the four rotating blocks, and four inserting blocks are threadedly connected to the surfaces of the four threaded rods. The surfaces of the four threaded rods are provided with sliding grooves located inside the cabinet door. A trigger mechanism is provided inside the cabinet and can drive the rotating block to rotate; The pushing component is arranged inside the cabinet and can push the cabinet door to move out of the cabinet.

2. The safe and reliable electric energy meter box according to claim 1 is characterized in that: The trigger mechanism includes an elastic part 1 fixedly connected to the inside of the cabinet, one end of the elastic part 1 is fixedly mounted with a sliding sleeve located on the surface of the rotating block, and the elastic part 1 is in a compressed state. The interior of the sliding sleeve is rollingly connected to a ball located inside the slide groove. There are four sliding sleeves, and each two form a group. The two sliding sleeves are connected by a nylon rope, and the nylon rope has a high tensile strength.

3. The safe and reliable electric energy meter box according to claim 1 is characterized in that: The pushing assembly includes a pushing block slidably connected to the interior of the cabinet, and the pushing block is elastically connected to the cabinet via a second elastic member.

4. The safe and reliable electric energy meter box according to claim 1 is characterized in that: Also includes: The damping mechanism is arranged inside the cabinet, and the damping mechanism includes a mounting groove opened inside the cabinet, a sliding rod is slidably connected inside the mounting groove, the mounting groove and the sliding rod are elastically connected by three elastic parts, and a grinding wheel is rotatably connected inside the bottom end of the sliding rod.

5. The safe and reliable electric energy meter box according to claim 1 is characterized in that: Also includes: A power-off mechanism is arranged inside the cabinet. The power-off mechanism includes a square shell fixedly connected to the inside of the cabinet. A pull rod is slidably connected to the inside of the square shell, and the pull rod is L-shaped. The pull rod and the cabinet are elastically connected through four elastic parts. A steel wire rope is fixedly installed on the top of the pull rod, and one end of the steel wire rope extends to the inside of the cabinet and is connected to the push block.

6. The safe and reliable electric energy meter box according to claim 5, characterized in that: Limiting grooves are provided on both sides of the interior of the square shell, and supporting blocks located inside the limiting grooves are fixedly installed on both sides of the surface of the pull rod.

7. The safe and reliable electric energy meter box according to claim 1 is characterized in that: Two positioning plates are fixedly installed inside the cabinet, and the two positioning plates are designed to be transversely symmetrical with respect to the center of the pushing block.

8. The safe and reliable electric energy meter box according to claim 1, characterized in that: The slide groove is designed to be curved, and the surface of the ball is designed to be smooth, and the inner wall of the slide groove fully fits the surface of the ball.

9. The safe and reliable electric energy meter box according to claim 1, characterized in that: The cabinet body is internally rotatably connected with a support ring, and the bottom end of the support ring is fixedly connected to one end of the rotating block, and the support ring is T-shaped.

10. The safe and reliable electric energy meter box according to claim 1, characterized in that: One side of the insert block is designed as an inclined surface, and the surface of the insert block fits against the inner wall of the cabinet door.

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