A power metering box and its method for facilitating the installation of electrical components

Abstract

The present invention belongs to the technical field of power devices, and discloses a power metering box convenient for the installation of electrical components and a method thereof, including a metering box body, three current transformers and three second conductors. The metering box body is fixedly installed on a transformer, and the second conductors are installed at the front end of the metering box body; the current transformers are detachably installed at the inner end of the metering box body, and the metering box body is provided with a wire connection driving assembly for cooperating with the current transformers for detection use. By the above method, the present invention realizes the convenient installation of the current transformers and improves the work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of power devices, and particularly relates to a power metering box convenient for installing electrical components and a method thereof. Background Art

[0002] In the prior art, the current of the wire connected to the output terminal of the power transformer is measured by a current transformer, and the current transformer is installed in the metering box.

[0003] For example, among many prior arts, Chinese Patent Application CN2495018Y discloses a power transformer output terminal protection metering box, which has a box body, a box door that can be locked with the box body, an observation window on the box door, a pressing plate at the inner bottom of the box body is fixedly connected to the low-voltage terminal side on the top cover of the transformer through the fastening bolts on the top cover of the transformer, and there is a low-voltage terminal cover at the lower part of the rear plate of the box body.

[0004] However, the convenient installation of the current transformer cannot be achieved in this patent application.

[0005] Based on this, the present invention designs a power metering box convenient for installing electrical components and a method thereof to solve the above problems. Summary of the Invention

[0006] Aiming at the above-mentioned disadvantages of the prior art, the present invention provides a power metering box convenient for installing electrical components and a method thereof.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0008] A power metering box convenient for installing electrical components, including a metering box body, three current transformers and three wires II. The metering box body is fixedly installed on the transformer, the wire II is installed at the front end of the metering box body, and the current transformers are detachably installed at the inner end of the metering box body;

[0009] A wire connection driving component is installed at the inner end of the metering box body;

[0010] The wire connection driving component includes three groups of wire connection components and a driving component. The three groups of wire connection components are used in cooperation with the three wiring terminals on the transformer to connect with the three wires II. The wire connection components are connected with the wiring terminals and the wires II, the driving component is connected with the wire connection components, the driving component is connected with a transformer locking component for locking between the metering box body and the lower mounting plate of the current transformer, the transformer locking component is connected with the metering box body, and there are six groups of the transformer locking components.

[0011] Furthermore, the metering box body includes a box body, a fixed seat, a limiting block, an L-shaped guide plate, an upper cabinet door and a lower cabinet door;

[0012] The inner end of the box body is provided with an upper chamber and a lower chamber. There are two groups of fixed seats which are fixedly installed at the bottom of the box body. The fixed seats are fixedly connected to the upper ends of the transformers. There are six L-shaped guide plates which are fixedly installed at the inner bottom of the box body. Two of the six L-shaped guide plates are in a group and are symmetrically arranged. The left and right sides of the lower mounting plate of the current transformer are respectively in limit sliding connection with the two symmetrically arranged L-shaped guide plates. The six groups of transformer locking components are respectively connected to the six groups of L-shaped guide plates. The upper cabinet door is arranged at the front end of the upper chamber of the box body. One end of the upper cabinet door is hinged to the front end of the box body, and the other end of the upper cabinet door is fixedly connected to the front end of the box body through a door lock. The lower cabinet door is arranged at the front end of the lower chamber of the box body. The upper end of the lower cabinet door is hinged to the front end of the box body through a spring hinge. The second wire is fixedly connected to the lower cabinet door. The driving component is connected to the inner bottom of the lower chamber of the box body. There are three through holes which are used in cooperation with the wiring terminals to pass through. There are three limit blocks which are fixedly installed at the inner bottom of the lower chamber of the box body. The limit blocks are located between the two symmetrically arranged L-shaped guide plates and are used in cooperation with the current transformer to resist and limit.

[0013] Furthermore, the wire connection component includes a first wire, a metal contact, a metal sleeve, a first spring, a conductive slide bar, a metal sleeve, a metal shell and a metal connection sleeve;

[0014] One end of the first wire is fixedly connected to the wiring terminal, and the other end of the first wire is fixedly connected to one end of the metal contact. The outer wall of the other end of the metal contact is in fitting sliding connection with the metal sleeve. One end of the conductive slide bar is fixedly connected to the metal sleeve, and the other end of the conductive slide bar is in fitting sliding connection with the metal sleeve. One end of the first spring is fixedly connected to the front side wall of the metal sleeve, and the other end of the first spring is fixedly connected to the rear side wall of the metal sleeve. The metal sleeve is fixedly installed on the rear side wall of the metal shell. A through hole for the metal connection sleeve to pass through is provided on the front side wall of the metal shell. The rear end of the metal connection sleeve is in fitting sliding connection with the inner wall of the metal shell. The rear end of the second wire is used in cooperation with the metal connection sleeve for plugging and unplugging. The metal sleeve is connected to the driving component.

[0015] Furthermore, the driving component includes an electric push rod, an insulating mounting plate, a slider and a slide rail;

[0016] The electric push rod is fixedly installed at the inner bottom of the lower chamber of the box body. The output end of the electric push rod is fixedly connected to the side wall of the insulating mounting plate. The insulating mounting plate is fixedly connected to the metal sleeve. The slider is fixedly installed at the bottom of the insulating mounting plate. A slide rail for the slider to slide in cooperation is fixedly installed at the inner bottom of the lower chamber of the box body. The transformer locking component is connected to the insulating mounting plate.

[0017] Further, the mutual inductor locking assembly includes an arc-shaped push block, a sliding sleeve, a locking rod, and a second spring. One end of the arc-shaped push block is fixedly connected to the side wall of the insulating mounting plate. The front-side arc surface at the lower end of the arc-shaped push block is in sliding fit with the spherical surface at the upper end of the locking rod. The sliding sleeve is fixedly installed on the upper end surface of the L-shaped guiding plate. The outer wall of the locking rod is slidably connected to the sliding sleeve. The lower end of the locking rod is in plug-in fit with the positioning holes on the left and right sides of the lower mounting plate of the current mutual inductor. One end of the second spring is fixedly connected to the sliding sleeve, and the other end of the second spring is fixedly connected to the locking rod.

[0018] Further, it also includes a cabinet door locking assembly for locking the lower cabinet door and the box body.

[0019] Further, the cabinet door locking assembly includes a lock block, a chute, an insertion block, a lock block, a slot, a third spring, a guiding sliding column, a guiding plate, and a guiding groove;

[0020] The lock block is fixedly installed at the bottom of the lower cavity of the box body. The chute is opened at the inner top of the front side of the lock block. The insertion block is in limit sliding connection with the chute. One end of the third spring is fixedly connected to the chute, and the other end of the third spring is fixedly connected to the insertion block. The lock block is fixedly installed at the lower end of the rear side wall of the L-shaped guiding plate. An arc surface is provided at the upper rear corner of the lock block. A slope is provided at the lower front corner of the insertion block for sliding fit with the arc surface of the lock block. A slot for plugging in the insertion block is opened on the upper end surface of the lock block. The guiding sliding column is fixedly installed on the side wall of the insertion block. A guiding groove for sliding fit with the guiding sliding column is penetrated and opened on the side wall of the guiding plate. The guiding plate is fixedly connected to the slider. The guiding groove is composed of three connected slot openings. The three slot openings are, from back to front, a vertical slot opening, a horizontal slot opening, and an inclined slot opening. The lower front end of the vertical slot opening is communicated with the rear end of the horizontal slot opening. The front end of the horizontal slot opening is communicated with the lower end of the inclined slot opening. The upper end of the inclined slot opening is at the same height as the upper end of the vertical slot opening.

[0021] To better achieve the purpose of the present invention, the present invention also provides a usage method of a power metering box convenient for installing electrical components. Step 1, slide the lower mounting plate of the current mutual inductor along two symmetrically arranged L-shaped guiding plates, and limit the current mutual inductor through the limit block;

[0022] Step 2, the electric push rod pushes the insulating mounting plate to move. The insulating mounting plate slides on the slide rail through the slider. The slider drives the guiding plate to move forward, so that the guiding sliding column is located at the lower end of the vertical slot opening of the guiding groove;

[0023] At the same time, the insulating mounting plate drives the metal sleeve to move forward along the metal contact. The metal sleeve drives the first spring, the conductive sliding rod, the metal sleeve, the metal shell, and the metal connecting sleeve to move forward as a whole;

[0024] Step 3: Close the upper and lower cabinet doors. The lower cabinet door drives the lock block to move. The arc surface of the lock block contacts and slides along the inclined surface of the plug block. The lock block pushes the plug block to slide on the inner wall of the chute and compresses the third spring. At this time, the guiding slide post slides upward along the vertical notch of the guiding groove to its upper end. When the plug block is inserted into the slot, the elastic potential energy of the third spring is released, and the guiding slide post returns to the lower end of the vertical notch.

[0025] At the same time, the lower cabinet door drives the second wire to contact the front end of the metal connecting sleeve. Under the thrust, the metal connecting sleeve slides in the metal shell and pushes the metal shell at the same time. The metal shell pushes the metal sleeve to slide on the conductive slide bar and compresses the first spring until the second wire is inserted into the metal connecting sleeve.

[0026] Step 4: While the insulating mounting plate slides forward, it drives the arc-shaped push block to move forward. The arc surface of the arc-shaped push block contacts and slides along the spherical surface of the lock rod. The arc-shaped push block pushes the lock rod to slide downward along the sliding sleeve and compresses the second spring at the same time. The lower end of the lock rod is inserted into the positioning hole on the lower mounting plate of the current transformer.

[0027] Step 5: When the current transformer needs to be removed, the electric push rod resets. The electric push rod drives the insulating mounting plate to reset. The insulating mounting plate drives the slider to reset. The slider drives the guiding plate to move backward. The guiding slide post slides along the horizontal notch of the guiding groove to the lower end of the inclined notch, and then slides along the inclined notch to its upper end. The guiding slide post drives the plug block to slide in the chute and compresses the third spring. The plug block is disengaged from the slot. At the same time, the insulating mounting plate drives the metal sleeve and the metal contact to slide backward. The first spring moves backward and slides with the metal sleeve. After the first spring resets, the metal sleeve, the metal shell, and the metal connecting sleeve move backward as a whole, so that the metal connecting sleeve is disengaged from the second wire.

[0028] Step 6: Under the action of the spring hinge, the lower cabinet door resets and drives the second wire to leave the middle of the current transformer.

[0029] Step 7: The insulating mounting plate resets and drives the arc-shaped push block to reset. Under the restoring force of the second spring, the sliding sleeve is disengaged from the positioning hole on the lower mounting plate of the current transformer.

[0030] Step 8: Remove the current transformer to be replaced and return to Step 1.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0032] When the present invention is in use, the metering box body is installed on the transformer. The three wiring terminals of the transformer and the three conductors II are connected through three groups of wire connection components. The wire connection components are adjusted through the driving component to control the on-off between the wiring terminals and the conductor II. At the same time, the driving component drives the current transformer locking component to lock between the current transformer and the metering box body. Thus, the locking between the current transformer and the metering box body and the on-off between the wiring terminals and the conductor II can be adjusted simultaneously through the driving component, facilitating the installation of the current transformer on the metering box body.

[0033] When the present invention is in use, when the current transformer needs to be replaced, the electric push rod is used to control the adjustment so that the metal connecting sleeve is separated from the conductor II, and at the same time, the arc-shaped push block is separated from the locking rod to unlock between the current transformer and the L-shaped guide plate. At the same time, the plug and the slot are separated to unlock between the lower cabinet door and the box body. Through the single drive of the electric push rod, the above three effects are achieved synchronously, thus realizing the convenient installation of the current transformer and improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0035] Figure 1 is a three-dimensional view of a power metering box for facilitating the installation of electrical components according to the present invention Figure 1 .

[0036] Figure 2 is a front view of a power metering box for facilitating the installation of electrical components according to the present invention.

[0037] Figure 3 is a sectional view along the Figure 2 A-A direction.

[0038] Figure 4 is a sectional view along the Figure 2 B-B direction.

[0039] Figure 5 is a sectional view along the Figure 2 C-C direction Figure 1 .

[0040] Figure 6 is a sectional view along the Figure 2 C-C direction Figure 2 .

[0041] Figure 7 is Figure 3Enlarged view of location D in [the figure].

[0042] Figure 8 is Figure 4 Enlarged view of location E in [the figure].

[0043] Figure 9 is Figure 5 Enlarged view of location F in [the figure].

[0044] Figure 10 is Figure 6 Enlarged view of location G in [the figure].

[0045] Figure 11 This is the installation schematic diagram of a power metering box facilitating the installation of electrical components of the present invention on a transformer.

[0046] The reference numerals in the figure respectively represent: 1. Metering box body; 11. Box body; 12. Fixed seat; 13. Limit block; 14. L-shaped guide plate; 15. Upper cabinet door; 16. Lower cabinet door; 17. Through hole; 2. Wiring terminal; 3. Current transformer; 4. Wire connection driving assembly; 41. Wire connection assembly; 411. First wire; 412. Metal contact; 413. Metal sleeve; 414. First spring; 415. Conductive sliding rod; 416. Metal sleeve; 417. Metal housing; 418. Metal connection sleeve; 42. Driving assembly; 421. Electric push rod; 422. Insulating mounting plate; 423. Slide block; 424. Slide rail; 5. Transformer locking assembly; 51. Arc-shaped push block; 52. Slide sleeve; 53. Locking rod; 54. Second spring; 6. Cabinet door locking assembly; 61. Locking block; 62. Chute; 63. Insert block; 64. Locking block; 65. Slot; 66. Third spring; 67. Guiding sliding column; 68. Guide plate; 69. Guide groove; 7. Second wire. Detailed implementation manners

[0047] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0048] The "left", "right", "front", "rear", "upper" and "lower" mentioned in the following description are oriented in the perspective direction of the front view.

[0049] Embodiment 1: In some embodiments, please refer to the accompanying drawings of the specification Figure 1-11, A power metering box convenient for installing electrical components, including a metering box body 1, three current transformers 3 and three second conductors 7; the metering box body 1 is fixedly installed on the transformer; the second conductors 7 are installed at the front end of the metering box body 1;

[0050] The current transformers 3 are detachably installed at the inner end of the metering box body 1, and the metering box body 1 is equipped with a wire connection driving assembly 4 for cooperating with the current transformers 3 for detection use;

[0051] The wire connection driving assembly 4 includes three groups of wire connection assemblies 41 and a driving assembly 42. The three groups of wire connection assemblies 41 are used in cooperation with three wiring terminals 2 on the transformer to connect with the three second conductors 7. The wire connection assemblies 41 are connected to the wiring terminals 2 and the second conductors 7. The driving assembly 42 is connected to the wire connection assemblies 41. The driving assembly 42 is connected to a transformer locking assembly 5 for locking between the lower mounting plate of the metering box body 1 and the current transformers 3. The transformer locking assembly 5 is connected to the metering box body 1, and there are six groups of the transformer locking assembly 5.

[0052] When the present invention is in use, the metering box body 1 is installed on the transformer. The three wiring terminals 2 of the transformer and the three second conductors 7 are connected through three groups of wire connection assemblies 41. The wire connection assemblies 41 are adjusted by the driving assembly 42 to control the on-off between the wiring terminals 2 and the second conductors 7. At the same time, the driving assembly 42 drives the transformer locking assembly 5 to lock between the current transformers 3 and the metering box body 1; thus, the locking between the current transformers 3 and the metering box body 1 and the on-off between the wiring terminals 2 and the second conductors 7 can be adjusted simultaneously through the driving assembly 42, so as to facilitate the installation of the current transformers 3 on the metering box body 1.

[0053] When the present invention is in use, the current of 3 pairs is detected.

[0054] Embodiment 2: In some embodiments, as Figure 1-11 shown, as a preferred embodiment of the present invention, the metering box body 1 includes a box body 11, a fixed seat 12, a limiting block 13, an L-shaped guide plate 14, an upper cabinet door 15 and a lower cabinet door 16;

[0055] The inner end of the box body 11 is provided with an upper chamber and a lower chamber. There are two groups of fixed seats 12 which are fixedly installed at the bottom of the box body 11. The fixed seats 12 are fixedly connected to the upper ends of the transformers. There are six L-shaped guide plates 14 which are fixedly installed at the inner bottom of the box body 11. Two of the six L-shaped guide plates 14 form a group and are symmetrically arranged. The left and right sides of the mounting plate at the lower end of the current transformer 3 are respectively in limit sliding connection with the two symmetrically arranged L-shaped guide plates 14. Six groups of transformer locking components 5 are respectively connected to the six groups of L-shaped guide plates 14. The upper cabinet door 15 is arranged at the front end of the upper chamber of the box body 11. One end of the upper cabinet door 15 is hinged to the front end of the box body 11, and the other end of the upper cabinet door 15 is in locking connection with the front end of the box body 11. The lower cabinet door 16 is arranged at the front end of the lower chamber of the box body 11. The upper end of the lower cabinet door 16 is hinged to the front end of the box body 11 through a spring hinge. The second wire 7 is fixedly connected to the lower cabinet door 16. The driving component 42 is connected to the inner bottom of the lower chamber of the box body 11. There are three through holes 17 which are used in cooperation with the wiring terminals 2 to pass through. There are three limit blocks 13 which are fixedly installed at the inner bottom of the lower chamber of the box body 11. The limit blocks 13 are located between the two symmetrically arranged L-shaped guide plates 14 and are used in cooperation with the current transformer 3 for limiting.

[0056] The wire connection component 41 includes a first wire 411, a metal contact 412, a metal sleeve 413, a first spring 414, a conductive sliding rod 415, a metal sleeve 416, a metal shell 417 and a metal connection sleeve 418;

[0057] One end of the first wire 411 is fixedly connected to the wiring terminal 2, and the other end of the first wire 411 is fixedly connected to one end of the metal contact 412. The outer wall of the other end of the metal contact 412 is in fitting sliding connection with the metal sleeve 413. One end of the conductive sliding rod 415 is fixedly connected to the metal sleeve 413, and the other end of the conductive sliding rod 415 is in fitting sliding connection with the metal sleeve 416. One end of the first spring 414 is fixedly connected to the front side wall of the metal sleeve 413, and the other end of the first spring 414 is fixedly connected to the rear side wall of the metal sleeve 416. The metal sleeve 416 is fixedly installed on the rear side wall of the metal shell 417. A through hole for the metal connection sleeve 418 to pass through is provided on the front side wall of the metal shell 417. The rear end of the metal connection sleeve 418 is in fitting sliding connection with the inner wall of the metal shell 417. The rear end of the second wire 7 is used for plugging and unplugging in cooperation with the metal connection sleeve 418. The metal sleeve 413 is connected to the driving component 42.

[0058] The driving component 42 includes an electric push rod 421, an insulating mounting plate 422, a slider 423 and a slide rail 424;

[0059] The electric push rod 421 is fixedly installed on the inner bottom of the lower chamber of the box body 11. The output end of the electric push rod 421 is fixedly connected to the side wall of the insulating mounting plate 422. The insulating mounting plate 422 is fixedly connected to the metal sleeve 413. The slider 423 is fixedly installed at the bottom of the insulating mounting plate 422. A slide rail 424 for sliding connection with the slider 423 is fixedly installed on the inner bottom of the lower chamber of the box body 11. The mutual inductor locking assembly 5 is connected to the insulating mounting plate 422.

[0060] The mutual inductor locking assembly 5 includes an arc-shaped push block 51, a sliding sleeve 52, a locking rod 53 and a second spring 54. One end of the arc-shaped push block 51 is fixedly connected to the side wall of the insulating mounting plate 422. The front arc surface at the lower end of the arc-shaped push block 51 is in sliding fit with the spherical surface at the upper end of the locking rod 53. The sliding sleeve 52 is fixedly installed on the upper end surface of the L-shaped guide plate 14. The outer wall of the locking rod 53 is slidably connected to the sliding sleeve 52. The lower end of the locking rod 53 is in plug-in fit with the positioning holes on the left and right sides of the mounting plate at the lower end of the current transformer 3. One end of the second spring 54 is fixedly connected to the sliding sleeve 52, and the other end of the second spring 54 is fixedly connected to the locking rod 53.

[0061] It also includes a cabinet door locking assembly 6 for locking the lower cabinet door 16 and the box body 11.

[0062] The cabinet door locking assembly 6 includes a lock block 61, a chute 62, an insertion block 63, a lock block 64, a slot 65, a third spring 66, a guiding sliding column 67, a guiding plate 68 and a guiding groove 69.

[0063] The lock block 61 is fixedly installed on the inner bottom of the lower chamber of the box body 11. The chute 62 is opened at the inner top of the front side of the lock block 61. The insertion block 63 is in limit sliding connection with the chute 62. One end of the third spring 66 is fixedly connected to the chute 62, and the other end of the third spring 66 is fixedly connected to the insertion block 63. The lock block 64 is fixedly installed at the lower end of the rear side wall of the L-shaped guide plate 14. An arc surface is opened at the upper rear corner of the lock block 64. An inclined surface for sliding fit with the arc surface of the lock block 64 is opened at the lower front corner of the insertion block 63. A slot 65 for plugging the insertion block 63 is opened on the upper end surface of the lock block 64. The guiding sliding column 67 is fixedly installed on the side wall of the insertion block 63. A guiding groove 69 for sliding fit with the guiding sliding column 67 is penetrated and opened on the side wall of the guiding plate 68. The guiding plate 68 is fixedly connected to the slider 423. The guiding groove 69 is composed of three connected slot openings. The three slot openings are a vertical slot opening, a horizontal slot opening and an inclined slot opening from back to front. The lower front end of the vertical slot opening is connected to the rear end of the horizontal slot opening. The front end of the horizontal slot opening is connected to the lower end of the inclined slot opening. The upper end of the inclined slot opening is at the same height as the upper end of the vertical slot opening.

[0064] When the present invention is in use, when it is necessary to replace the current transformer 3, the electric push rod 421 is used to control the adjustment so that the metal connecting sleeve 418 is separated from the second wire 7, and at the same time, the arc-shaped push block 51 is separated from the locking rod 53, unlocking the current transformer 3 and the L-shaped guide plate 14. At the same time, the insertion block 63 is separated from the insertion slot 65, unlocking the lower cabinet door 16 and the box body 11;

[0065] Through the single drive of the electric push rod 421, the above three effects are synchronously achieved, thus realizing the convenient installation of the current transformer 3 and improving the work efficiency.

[0066] Embodiment 3: In some embodiments, as Figure 1-11 shown, as a preferred embodiment of the present invention, the invention also provides a method for using a power metering box convenient for the installation of electrical components, including the following steps:

[0067] Step 1, slide the mounting plate at the lower end of the current transformer 3 along the two symmetrically arranged L-shaped guide plates 14, and limit the current transformer 3 through the limit block 13;

[0068] Step 2, the electric push rod 421 pushes the insulating mounting plate 422 to move. The insulating mounting plate 422 slides on the slide rail 424 through the slider 423. The slider 423 drives the guide plate 68 to move forward, so that the guide slide column 67 is located at the lower end of the vertical notch of the guide groove 69;

[0069] At the same time, the insulating mounting plate 422 drives the metal sleeve 413 to move forward along the metal contact 412. The metal sleeve 413 drives the first spring 414, the conductive slide rod 415, the metal sleeve 416, the metal shell 417, and the metal connecting sleeve 418 to move forward as a whole;

[0070] Step 3, close the lower cabinet door 16. The lower cabinet door 16 drives the lock block 64 to move. The arc surface of the lock block 64 contacts and fits with the inclined surface of the insertion block 63 and slides. The lock block 64 pushes the insertion block 63 to slide on the inner wall of the chute 62 and compresses the third spring 66. At this time, the guide slide column 67 slides upward along the vertical notch of the guide groove 69 to its upper end. Until the insertion block 63 is inserted into the insertion slot 65, the elastic potential energy of the third spring 66 is released, and the guide slide column 67 returns to the lower end of the vertical notch;

[0071] At the same time, the lower cabinet door 16 drives the second wire 7 to contact the front end of the metal connecting sleeve 418. The metal connecting sleeve 418 slides in the metal shell 417 under the thrust and pushes the metal shell 417 at the same time. The metal shell 417 pushes the metal sleeve 416 to slide on the conductive slide rod 415 and compresses the first spring 414 until the second wire 7 is inserted into the metal connecting sleeve 418;

[0072] Step 4: While the insulating mounting plate 422 slides forward, it drives the arc-shaped pushing block 51 to move forward. The arc surface of the arc-shaped pushing block 51 contacts and slides in a fitting manner with the spherical surface of the locking rod 53. The arc-shaped pushing block 51 pushes the locking rod 53 to slide downward along the sliding sleeve 52 while compressing the second spring 54. The lower end of the locking rod 53 is inserted into the positioning hole on the lower mounting plate of the current transformer 3.

[0073] Step 5: When it is necessary to remove the current transformer 3, the electric push rod 421 resets. The electric push rod 421 drives the insulating mounting plate 422 to reset. The insulating mounting plate 422 drives the slider 423 to reset. The slider 423 drives the guiding plate 68 to move backward. The guiding sliding column 67 slides along the transverse notch of the guiding groove 69 to the lower end of the inclined notch, and then slides along the inclined notch to its upper end. The guiding sliding column 67 drives the inserting block 63 to slide in the sliding groove 62 and compresses the third spring 66. The inserting block 63 disengages from the inserting slot 65. At the same time, the insulating mounting plate 422 drives the metal sleeve 413 and the metal contact 412 to slide backward. The first spring 414 moves backward and slides with the metal sleeve 416. After the first spring 414 resets, the metal sleeve 416, the metal housing 417, and the metal connecting sleeve 418 move backward as a whole, so that the metal connecting sleeve 418 disengages from the insertion connection with the second wire 7.

[0074] Step 6: The lower cabinet door 16 resets under the action of the spring hinge and drives the second wire 7 to leave the middle of the current transformer 3.

[0075] Step 7: The insulating mounting plate 422 resets and drives the arc-shaped pushing block 51 to reset. The sliding sleeve 52 disengages from the positioning hole on the lower mounting plate of the current transformer 3 under the restoring force of the second spring 54.

[0076] Step 8: Remove the current transformer 3 that needs to be replaced and return to Step 1.

[0077] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electric power meter box for facilitating installation of electrical components, comprising a meter box body (1), three current transformers (3) and three conductors (7), characterized in that: The meter box body (1) is fixedly mounted on the transformer, the second conductor (7) is mounted on the front end of the meter box body (1), and the current transformer (3) is detachably mounted on the inner end of the meter box body (1); A wire connection drive assembly (4) is installed at the inner end of the meter box body (1); The wire connection drive assembly (4) comprises three groups of wire connection assemblies (41) and a drive assembly (42). The three groups of wire connection assemblies (41) are used in conjunction with three wiring terminals (2) on the transformer and are connected to three wires (7). The wire connection assembly (41) is connected to the wiring terminals (2) and the wires (7). The drive assembly (42) is connected to the wire connection assembly (41). The drive assembly (42) is connected to a current transformer locking assembly (5) for locking the meter box body (1) and the lower mounting plate of the current transformer (3). The current transformer locking assembly (5) is connected to the meter box body (1). Six groups of current transformer locking assemblies (5) are provided. The meter box body (1) comprises an L-shaped guide plate (14) of the box body (11); there are six L-shaped guide plates (14) fixedly mounted on the inner bottom of the box body (11); two of the six L-shaped guide plates (14) form a group and are symmetrically arranged; the left and right sides of the lower end mounting plate of the current transformer (3) are respectively connected to the two symmetrically arranged L-shaped guide plates (14) in a limited sliding manner; and the six groups of transformer locking assemblies (5) are respectively connected to the six groups of L-shaped guide plates (14); The driving assembly (42) comprises an electric push rod (421), an insulating mounting plate (422), a slider (423) and a slide rail (424); the electric push rod (421) is fixedly mounted on the inner bottom of the lower chamber of the box body (11); the output end of the electric push rod (421) is fixedly connected to the side wall of the insulating mounting plate (422); the insulating mounting plate (422) is fixedly connected to the metal sleeve (413); the slider (423) is fixedly mounted on the bottom of the insulating mounting plate (422); a slide rail (424) for sliding connection with the slider (423) is fixedly mounted on the inner bottom of the lower chamber of the box body (11); and the mutual inductor locking assembly (5) is connected to the insulating mounting plate (422); The transformer locking assembly (5) comprises an arc-surface push block (51), a sliding sleeve (52), a locking rod (53) and a second spring (54); one end of the arc-surface push block (51) is fixedly connected to the side wall of the insulating mounting plate (422); the front arc surface of the lower end of the arc-surface push block (51) fits and slides with the spherical surface of the upper end of the locking rod (53); the sliding sleeve (52) is fixedly mounted on the upper end surface of the L-shaped guide plate (14); the outer wall of the locking rod (53) is slidably connected to the sliding sleeve (52); the lower end of the locking rod (53) is plugged into the positioning holes on the left and right sides of the lower end mounting plate of the current transformer (3); one end of the second spring (54) is fixedly connected to the sliding sleeve (52); and the other end of the second spring (54) is fixedly connected to the locking rod (53).

2. The electric power meter box for facilitating installation of electric components according to claim 1, characterized in that: The metering box body (1) further comprises a fixing seat (12), a limit block (13), an upper cabinet door (15) and a lower cabinet door (16); An upper chamber and a lower chamber are provided at the inner end of the box (11); two sets of the fixing seats (12) are fixedly mounted on the bottom of the box (11); the fixing seats (12) are fixedly connected to the upper end of the transformer; the upper cabinet door (15) is provided at the front end of the upper chamber of the box (11); one end of the upper cabinet door (15) is hinged to the front end of the box (11); the other end of the upper cabinet door (15) is locked to the front end of the box (11) via a door lock; the lower cabinet door (16) is provided at the front end of the lower chamber of the box (11); The upper end of the door (16) is hinged to the front end of the box body (11) through a spring hinge, the second wire (7) is fixedly connected to the lower cabinet door (16), the drive assembly (42) is connected to the bottom of the lower chamber of the box body (11), three through holes (17) are provided and are used in conjunction with the wiring terminal (2) to pass through, three limit blocks (13) are fixedly installed on the bottom of the lower chamber of the box body (11), the limit blocks (13) are located between two symmetrically arranged L-shaped guide plates (14) and are used in conjunction with the current transformer (3) for contact limiting.

3. The electric power meter box for facilitating installation of electric components according to claim 2, characterized in that: The wire connection assembly (41) comprises a first conductor (411), a metal contact (412), a metal sleeve (413), a first spring (414), a conductive sliding rod (415), a metal sleeve (416), a metal housing (417) and a metal connection sleeve (418); One end of the wire 1 (411) is fixedly connected to the terminal (2), the other end of the wire 1 (411) is fixedly connected to one end of the metal contact (412), the outer wall of the other end of the metal contact (412) is fitted and slidably connected to the metal sleeve (413), one end of the conductive sliding rod (415) is fixedly connected to the metal sleeve (413), the other end of the conductive sliding rod (415) is fitted and slidably connected to the metal sleeve (416), and one end of the first spring (414) is fixedly connected to the front side wall of the metal sleeve (413). The other end of the first spring (414) is fixedly connected to the rear side wall of the metal sleeve (416), the metal sleeve (416) is fixedly mounted on the rear side wall of the metal shell (417), the front side wall of the metal shell (417) is provided with a through hole for the metal connecting sleeve (418) to pass through, the rear end of the metal connecting sleeve (418) is fitted and slidably connected to the inner wall of the metal shell (417), the rear end of the second wire (7) is used in conjunction with the metal connecting sleeve (418) for plugging and unplugging, and the metal sleeve (413) is connected to the drive assembly (42).

4. The electric power meter box for facilitating installation of electric components according to claim 3, characterized in that: It also includes a cabinet door locking assembly (6) for locking the lower cabinet door (16) and the cabinet body (11).

5. The electric power meter box for facilitating installation of electric components according to claim 4, characterized in that: The cabinet door locking assembly (6) comprises a first locking block (61), a sliding groove (62), an inserting block (63), a second locking block (64), a slot (65), a third spring (66), a guide sliding column (67), a guide plate (68) and a guide groove (69); The first locking block (61) is fixedly installed at the bottom of the lower chamber of the box body (11), the slide groove (62) is opened at the front inner top of the first locking block (61), the plug block (63) is connected to the slide groove (62) in a limited sliding manner, one end of the third spring (66) is fixedly connected to the slide groove (62), and the other end of the third spring (66) is fixedly connected to the plug block (63), and the second locking block (64) is fixedly installed at the lower end of the rear side wall of the L-shaped guide plate (14), the second locking block (64) is provided with an arc surface at the rear upper corner, and the plug block (63) is provided with an inclined surface that fits the arc surface of the second locking block (64) for sliding, and the upper The end surface is provided with a slot (65) for plugging with the plug block (63), the guide slide post (67) is fixedly mounted on the side wall of the plug block (63), the side wall of the guide plate (68) is penetrated with a guide groove (69) for sliding connection with the guide slide post (67), the guide plate (68) is fixedly connected to the slider (423), the guide groove (69) is composed of three sections of slots connected, the three sections of slots are vertical slots, horizontal slots, and oblique slots from back to front, the front lower end of the vertical slot is connected with the rear end of the horizontal slot, the front end of the horizontal slot is connected with the lower end of the oblique slot, and the upper end of the oblique slot is at the same height as the upper end of the vertical slot.

6. The method for using the electric power meter box for facilitating installation of electric components according to claim 5, characterized in that: The following steps are involved: Step 1: Slide the mounting plate at the lower end of the current transformer (3) along two symmetrically arranged L-shaped guide plates (14), and limit the current transformer (3) by means of a limit block (13); Step 2: The electric push rod (421) pushes the insulating mounting plate (422) to move, and the insulating mounting plate (422) slides on the slide rail (424) through the slider (423), and the slider (423) drives the guide plate (68) to move forward, so that the guide slide column (67) is located at the lower end of the vertical notch of the guide groove (69); At the same time, the insulating mounting plate (422) drives the metal sleeve (413) to move forward along the metal contact (412), and the metal sleeve (413) drives the first spring (414), the conductive sliding rod (415), the metal sleeve (416), the metal shell (417), and the metal connecting sleeve (418) to move forward as a whole; Step 3: close the upper and lower cabinet doors (16), the lower cabinet door (16) drives the second locking block (64) to move, the arc surface of the second locking block (64) contacts and slides with the inclined surface of the plug block (63), the second locking block (64) pushes the plug block (63) to slide on the inner wall of the slide groove (62) and compresses the third spring (66), at this time, the guide slide column (67) slides upward along the vertical notch of the guide groove (69) to its upper end, until the plug block (63) is inserted into the slot (65), the elastic potential energy of the third spring (66) is released, and the guide slide column (67) returns to the lower end of the vertical notch; At the same time, the lower cabinet door (16) drives the second conductor (7) to contact the front end of the metal connecting sleeve (418), and the metal connecting sleeve (418) slides in the metal shell (417) under the action of the thrust and pushes the metal shell (417), and the metal shell (417) pushes the metal sleeve (416) to slide on the conductive sliding rod (415) and compress the first spring (414) until the second conductor (7) is inserted into the metal connecting sleeve (418); Step 4: The insulating mounting plate (422) slides forward while driving the arc surface push block (51) to move forward, the arc surface of the arc surface push block (51) contacts and slides with the spherical surface of the locking rod (53), the arc surface push block (51) pushes the locking rod (53) to slide downward along the sliding sleeve (52) while compressing the second spring (54), and the lower end of the locking rod (53) is inserted into the positioning hole on the lower end mounting plate of the current transformer (3); Step 5, when the current transformer (3) needs to be removed, the electric push rod (421) is reset, the electric push rod (421) drives the insulating mounting plate (422) to reset, the insulating mounting plate (422) drives the slider (423) to reset, the slider (423) drives the guide plate (68) to move backward, the guide slide column (67) slides along the transverse notch of the guide groove (69) to the lower end of the inclined notch, and then slides along the writing notch to its upper end, the guide slide column (67) drives the plug (63) in the slide groove (62) The metal sleeve (416) slides inward and compresses the third spring (66), the plug block (63) and the slot (65) are disconnected, and at the same time, the insulating mounting plate (422) drives the metal sleeve (413) and the metal contact (412) to slide backward, and the first spring (414) moves backward and slides with the metal sleeve (416). After the first spring (414) is reset, the metal sleeve (416), the metal shell (417), and the metal connecting sleeve (418) move backward as a whole, so that the metal connecting sleeve (418) and the second wire (7) are disconnected; Step 6: The lower cabinet door (16) is reset under the action of the spring hinge and drives the second conductor (7) to leave the middle of the current transformer (3); Step seven, the insulating mounting plate (422) is reset to drive the arc surface push block (51) to reset, and the sliding sleeve (52) is separated from the positioning hole on the lower end mounting plate of the current transformer (3) under the action of the restoring force of the second spring (54); Step 8: Remove the current transformer (3) to be replaced and return to step 1.

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