Copper bar type three-phase electric energy metering box

Abstract

The invention relates to the technical field of electric energy metering boxes, and discloses a copper bar type three-phase electric energy metering box which comprises a box body, a placing plate is arranged in the box body, a copper bar used for penetrating through the placing plate is arranged on the box body, a mounting seat is arranged on the placing plate, a rotating seat is arranged on the placing plate, and the mounting plate is rotationally connected to the rotating seat. Metal such as stainless steel, galvanized iron and aluminum alloy is formed through a mechanical process; or the box body 1 is made of nonmetal; according to the electric energy meter, the mounting plate is rotationally connected to the rotating seat, so that the mounting plate can shield the joint of the copper bar and the electric energy meter, the copper bar is shielded by the mounting plate, the mounting seat and the rotating seat, the copper bar can be prevented from being damaged, and the electric energy meter can be prevented from being damaged due to the fact that the mounting plate is fixedly connected to the rotating seat, so that the electric energy meter is prevented from being damaged, and the service life of the electric energy meter is prolonged. And electric shock risks caused by the fact that workers directly touch the copper bars are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of electric energy meter boxes, and in particular to a copper busbar type three-phase electric energy meter box. Background Art

[0002] An energy meter box is a device used to measure and record energy consumption in three-phase AC circuits in power systems. Circuit meter boxes are mostly installed in industrial, commercial and residential electricity applications.

[0003] In the related art, an electric energy meter box comprises a box body, a placement plate is arranged in the box body, an electric energy meter is arranged on the placement plate, a copper busbar is arranged on the box body, and the copper busbar passes through the placement plate and is electrically connected to the electric energy meter.

[0004] When the electric energy meter box is in use, the copper busbar is directly exposed on the outside. If the staff touches the copper busbar by mistake, there may be some risk of electric shock, which makes the safety performance of the electric energy meter box low. Summary of the invention

[0005] In order to improve the problem of high risk of electric shock in an electric energy meter box, the present application provides a copper busbar type three-phase electric energy meter box.

[0006] The present application provides a copper busbar type three-phase electric energy meter box, which adopts the following technical solution: A copper busbar-type three-phase electric energy meter box comprises a box body, a placement plate is provided in the box body, an electric energy meter is provided on the placement plate, a copper busbar for passing through the placement plate is provided on the box body, the copper busbar is used to electrically connect to the electric energy meter, a mounting seat is provided on the placement plate, a rotating seat is provided on the placement plate, and a mounting plate is rotatably connected to the rotating seat; when the mounting plate abuts against the mounting seat, the mounting plate, the rotating seat and the mounting seat all shield the connection between the copper busbar and the electric energy meter.

[0007] By adopting the above technical solution, the mounting plate is rotatably connected to the rotating seat, and the mounting plate abuts the mounting seat, so that the mounting plate can cover the connection between the copper busbar and the electric energy meter, so that the mounting plate, the mounting seat and the rotating seat all cover the copper busbar, avoiding the risk of electric shock caused by direct contact between the staff and the copper busbar, thereby improving the safety performance of the electric energy meter box.

[0008] Optionally, a protective cover is rotatably connected to the electric energy meter, and the protective cover is used to shield the connection between the electric energy meter and the copper busbar. The protective cover is provided with a connection hole for the copper busbar to pass through; when the protective cover shields the connection between the electric energy meter and the copper busbar, the mounting plate does not block the connection hole.

[0009] By adopting the above technical solution, the connection between the electric energy meter and the copper busbar is shielded by a protective cover, and the connection hole is not blocked by the mounting plate, so that the copper busbar can be connected to the electric energy meter, and the connection between the copper busbar and the electric energy meter is not easily disturbed by external debris, so that the electric energy meter can be more stable when connected.

[0010] Optionally, a stop block is provided on the mounting plate, and the stop block is located in the connecting hole; when the stop block is located in the connecting hole, the mounting plate cannot rotate.

[0011] By adopting the above technical solution, the stop block is located in the connecting hole, so that the protective cover can limit the mounting plate. When the protective cover is locked, the hole wall of the connecting hole in the protective cover limits the mounting plate, so that the mounting plate cannot rotate. The protective cover limits the rotation of the mounting plate, avoiding the copper busbar from leaking out due to the rotation of the mounting plate, thereby further improving the safety performance of the electric energy meter box.

[0012] Optionally, a support bar is provided on the placement plate, a support groove for inserting the support bar is opened on the mounting seat, and two limit blocks are provided on the groove wall of the support groove; when the support bar is inserted into the support groove, the support bar is located between the two limit blocks.

[0013] By adopting the above technical solution, the support bar is inserted into the support groove, and the two limit blocks abut the support bar, so that the mounting seat can be stably located on the placement plate and the mounting seat is not easy to shake on the support bar.

[0014] Optionally, a mounting spring is provided on the mounting seat, a mounting block is provided on the mounting spring, and a mounting groove for inserting the mounting block is opened on the mounting plate; when the mounting plate abuts against the mounting seat, the mounting spring drives the mounting block to be inserted into the mounting groove.

[0015] By adopting the above technical solution, the mounting block is driven to move by installing a spring, and the mounting block is inserted into the mounting groove, so that the mounting seat and the mounting plate can be fixed to each other, reducing the possibility of shaking of the mounting plate on the mounting seat, and avoiding the situation where the stop block is separated from the connecting hole due to the shaking of the mounting plate when locking the protective cover, so that the mounting plate is not easy to affect the fixation of the protective cover, and the stop block can be stably located in the connecting hole.

[0016] Optionally, the stop block is slidably connected to the mounting plate, and a connecting strip is slidably connected to the mounting plate, the connecting strip is located on the moving path of the mounting block, a connecting bevel is provided on the connecting strip, the distance between the connecting bevel and the electric energy meter gradually increases along the direction from the mounting seat to the rotating seat, and the connecting bevel is located on the moving path of the stop block; when the mounting block is inserted into the mounting groove, the mounting block drives the stop block to move through the connecting strip, and the stop block is located in the connecting hole.

[0017] By adopting the above technical scheme, when the mounting block is inserted into the mounting groove, since the connecting strip is located on the moving path of the mounting block, the mounting block drives the connecting strip to move, and the connecting inclined surface is located on the moving path of the stop block, so that the connecting strip drives the stop block to move through the connecting inclined surface, so that the stop block is inserted into the connecting hole, and the stop block limits the mounting plate, thereby avoiding the mounting plate from being unlocked on the electric energy meter; when the staff first fixes the protective cover on the electric energy meter, the staff moves the mounting plate to fix the mounting plate on the protective cover, so that the stop block is located in the connecting hole, so that the staff does not need to unlock the protective cover and the electric energy meter and then fix the mounting plate, thereby avoiding the need for the staff to rotate the protective cover due to incorrect operating steps, so that the fixing of the mounting plate can be completed before or after the fixing operation of the protective cover.

[0018] Optionally, a locking strip is rotatably connected to the protective cover, a locking block is provided on the locking strip, a locking groove for inserting the locking strip is formed on the stop block, a groove wall of the locking groove is provided with a groove for inserting the locking block, and the groove does not penetrate to the surface of the stop block where the locking groove is formed; when the locking block is located in the groove and the stop block is located in the connecting hole, the locking strip and the stop block are fixed to each other.

[0019] By adopting the above technical solution, the staff rotates the locking bar to move the locking block from the locking groove into the groove. Since the groove does not penetrate the surface of the stop block where the locking groove is opened, the locking block and the stop block can be fixed to each other, preventing the locking bar from being directly taken out of the locking groove, allowing the stop block to be stably located in the protective cover, so that the protective cover and the mounting plate can be fixed to each other.

[0020] Optionally, the locking groove penetrates to the surface of the stop block away from the mounting plate, and a torsion spring is provided on the locking bar, which drives the locking bar to rotate; when the stop block is inserted into the connecting hole, the stop block can drive the locking block to rotate into the locking groove.

[0021] By adopting the above technical solution, when the stop block is inserted into the connecting hole, since the locking groove penetrates to the surface of the stop block away from the mounting plate, the locking strip and the locking block can enter the locking groove from the opening penetrated by the locking groove. Since the torsion spring drives the locking strip to rotate, the locking block can move from the locking groove to the groove, thereby realizing the locking of the stop block by the locking block.

[0022] Optionally, the mounting seat is provided with a accommodating spring, the accommodating spring is provided with a accommodating bar, the accommodating bar is provided with a first accommodating block and a second accommodating block, the second accommodating block can be located on the moving path of the mounting block, the support bar is provided with a accommodating groove for inserting the first accommodating block, and the accommodating spring drives the first accommodating block to be inserted into the accommodating groove; when the first accommodating block is inserted into the accommodating groove, the second accommodating block is not on the moving path of the mounting block.

[0023] By adopting the above technical solution, the accommodating spring drives the accommodating bar to move, and the second accommodating block blocks the mounting block, so that the second accommodating block can limit the mounting block from protruding out of the mounting seat, thereby preventing the mounting block from being damaged due to collision during the transportation of the mounting seat; when the first accommodating block abuts against the accommodating groove, the first accommodating block drives the second accommodating block to move through the accommodating bar, so that the second accommodating block is not on the moving path of the mounting block, and the mounting block can protrude out of the mounting seat, so that the mounting block can smoothly abut against the connecting bar; because the second accommodating block is located on the moving path of the mounting block, the mounting block will not protrude out of the accommodating groove during transportation, so that the mounting seat will not be damaged during transportation, thereby increasing the service life of the mounting seat.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The mounting plate is rotatably connected to the rotating seat, and the mounting plate is abutted against the mounting seat, so that the mounting plate can shield the connection between the copper busbar and the electric energy meter, thereby allowing the mounting plate to shield the copper busbar, avoiding the risk of electric shock caused by direct contact between the staff and the copper busbar, thereby improving the safety performance of the electric energy meter box.

[0025] 2. The stop block is located in the connecting hole, so that the protective cover can limit the mounting plate. When the protective cover is locked, the hole wall of the connecting hole in the protective cover limits the mounting plate, making it difficult for the mounting plate to rotate. The protective cover limits the rotation of the mounting plate to avoid leakage of the copper busbar due to the rotation of the mounting plate, thereby further improving the safety performance of the electric energy meter box. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of Example 1; Figure 2 is a schematic diagram of the structure of the highlight placement plate in Example 1; Figure 3 is an exploded schematic diagram highlighting the mounting plate in Example 1; Figure 4 is an exploded schematic diagram highlighting the limit block in Example 1; Figure 5 is a schematic diagram of the structure of the highlight placement plate in Example 2; Figure 6 is along Figure 5Partial cross-sectional view along line AA; Figure 7 is along Figure 5 Partial cross-sectional view of the middle BB line; Figure 8 It is a structural schematic diagram highlighting the locking strip in Example 2.

[0027] 1. Box body; 2. Placement plate; 21. Through hole; 22. Copper busbar; 23. Electric energy meter; 24. Support bar; 25. Protective cover; 251. Connecting hole; 252. Mounting hole; 253. Mounting bolt; 254. Threaded groove; 26. Accommodating groove; 27. Locking bar; 271. Locking block; 272. Torsion spring; 3. Rotating seat; 31. Mounting seat; 32. Support groove; 321. Limiting block; 33. Mounting plate; 331. Mounting groove; 332. Connecting bar; 333. Connecting inclined plane; 34. Stop block; 341. Locking groove; 342. Recess; 35. Accommodating groove; 351. Mounting spring; 352. Mounting block; 36. Placement groove; 361. Accommodating spring; 362. Accommodating bar; 363. First accommodating block; 364. Second accommodating block. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-8 This application is described in further detail.

[0029] Example 1 This embodiment discloses a copper busbar type three-phase electric energy meter box. Figure 1 and Figure 2 A copper busbar type three-phase electric energy meter box includes a box body 1, and a placement plate 2 is arranged inside the box body 1. The box body 1 is made of metal, such as stainless steel, galvanized iron, aluminum alloy and other metals, and is formed by mechanical process; or the box body 1 is made of non-metal, such as SMC molding compound, PC, PC + ABS, ASA plastic (acrylonitrile-butadiene-styrene copolymer), PE (polyethylene plus glass fiber), PP (polypropylene plus glass fiber) by molding and injection molding process.

[0030] Reference Figure 3 , a plurality of through holes 21 are provided on the placement board 2. A plurality of copper bars 22 are provided on the placement board 2, and the copper bars 22 pass through the through holes 21 and are located on the other side of the placement board 2.

[0031] Reference Figure 3 A plurality of electric energy meters 23 are fixedly connected to the placement plate 2, and the copper busbar 22 and the electric energy meters 23 can be connected to each other. A plurality of rotating seats 3 and a plurality of mounting seats 31 are provided on the placement plate 2, and the number of the rotating seats 3 and the mounting seats 31 corresponds to each other. The plurality of rotating seats 3 and the plurality of mounting seats 31 are divided into a plurality of groups, and each group of rotating seats 3 and mounting seats 31 is respectively located on the left and right sides of the through hole 21, that is, the through hole 21 is located in the middle of each group of rotating seats 3 and mounting seats 31.

[0032] Reference Figure 3 A plurality of support bars 24 are fixedly connected to the surface of the placement plate 2 , and the support bars 24 extend along the width direction of the electric energy meter box. The plurality of support bars 24 are distributed in an array along the length direction of the electric energy meter box, and the through holes 21 penetrate the surface of the support bars 24 .

[0033] Reference Figure 3 and Figure 4 The surfaces of the mounting seat 31 and the rotating seat 3 are provided with a support groove 32 for inserting the support bar 24. Two limit blocks 321 are fixedly connected to the groove wall of the support groove 32. The limit blocks 321 have elastic deformation capability. One limit block 321 is located on the groove wall of the support groove 32, and the other limit block 321 is located on the groove wall opposite to the support groove 32. When the support bar 24 is located in the support groove 32, the two limit blocks 321 both abut against the support bar 24, so that the mounting seat 31 or the rotating seat 3 can be fixed on the support bar 24.

[0034] Reference Figure 3 , a mounting plate 33 is rotatably connected to the surface of the rotating seat 3, and the mounting plate 33 can abut against the mounting seat 31. A stopper 34 is fixedly connected to the surface of the mounting plate 33, and a protective cover 25 is rotatably connected to the electric energy meter 23, and the protective cover 25 is used to block the connection between the electric energy meter 23 and the copper busbar 22. A connection hole 251 for the stopper 34 to be inserted is provided on the surface of the protective cover 25, and the connection hole 251 is for the copper busbar 22 to pass through. When the mounting plate 33 abuts against the mounting seat 31, the staff rotates the protective cover 25 to allow the stopper 34 to be located at the connection hole 251, so that the protective cover 25 limits the mounting plate 33.

[0035] Reference Figure 3 The protective cover 25 has a mounting hole 252 on its surface, a mounting bolt 253 is disposed in the mounting hole 252, and the electric energy meter 23 has a thread groove 254 for the mounting bolt 253 to be threadedly connected. When the mounting bolt 253 passes through the mounting hole 252 and is threadedly connected in the thread groove 254, the protective cover 25 is fixed to the electric energy meter 23.

[0036] The implementation principle of Example 1 is as follows: the staff first rotates the mounting plate 33 to make the mounting plate 33 abut against the mounting seat 31 , and then rotates the protective cover 25 and the mounting bolts 253 to limit the protective cover 25 by the mounting bolts 253 .

[0037] Example 2 Reference Figure 5 and Figure 6The difference between this embodiment and the first embodiment is that a receiving groove 35 is provided on the surface of the mounting seat 31, a mounting spring 351 is fixedly connected to the bottom wall of the receiving groove 35, and a mounting block 352 is fixedly connected to the surface of the mounting spring 351 away from the bottom wall of the receiving groove 35. A mounting groove 331 is provided on the surface of the mounting plate 33 for inserting the mounting block 352, and the mounting groove 331 extends along the length direction of the mounting plate 33.

[0038] Reference Figure 6 A connecting strip 332 is slidably connected in the mounting groove 331, and the connecting strip 332 slides along the length direction of the mounting groove 331, and the connecting strip 332 is located on the insertion path of the mounting block 352. A connecting slope 333 is provided on the surface of the connecting strip 332 away from the mounting seat 31, and the stop block 34 is slidably connected to the mounting plate 33. The distance between the connecting slope 333 and the electric energy meter 23 gradually decreases along the direction from the rotating seat 3 to the adjacent mounting seat 31, and the connecting slope 333 is located on the moving path of the stop block 34.

[0039] Reference Figure 6 When the mounting plate 33 abuts against the mounting seat 31 , the mounting spring 351 drives the mounting block 352 to insert into the mounting groove 331 , and the mounting block 352 abuts against the connecting strip 332 to move, allowing the connecting strip 332 to drive the stop block 34 to move through the connecting inclined surface 333 , allowing the stop block 34 to be inserted into the connecting hole 251 .

[0040] Reference Figure 6 and Figure 7 A placement groove 36 connected to the accommodating groove 35 is provided on the surface of the mounting seat 31, and two accommodating springs 361 are fixedly connected in the placement groove 36, and an accommodating bar 362 is provided in the placement groove 36. One end of the accommodating spring 361 is fixedly connected to the inner wall of the placement groove 36, and the other end of the accommodating spring 361 is fixedly connected to the accommodating bar 362. A first accommodating block 363 and a second accommodating block 364 are fixedly connected to the surface of the accommodating bar 362 away from the accommodating spring 361, and the first accommodating block 363 is located on the side of the second accommodating block 364 away from the placement plate 2. The first accommodating block 363 is located on the moving path of the mounting block 352, and the accommodating spring 361 drives the first accommodating block 363 to limit the mounting block 352 from protruding from the accommodating groove 35. A accommodating groove 26 for inserting the second accommodating block 364 is provided on the surface of the support bar 24. When the support bar 24 is located in the support groove 32, the first accommodating block 363 can be inserted into the accommodating groove 26, and the accommodating spring 361 is in a compressed state. When the first accommodation block 363 blocks the opening of the accommodation groove 35 , the first accommodation block 363 restricts the mounting block 352 from protruding out of the accommodation groove 35 , and at this time, the accommodation spring 361 is in a non-stressed state.

[0041] Reference Figure 6 and Figure 7When the mounting seat 31 is installed on the support bar 24, the accommodating spring 361 drives the second accommodating block 364 to be inserted into the accommodating groove 26. At this time, the first accommodating block 363 is not in the moving path of the mounting block 352, so that the mounting block 352 can protrude smoothly from the accommodating groove 35.

[0042] Reference Figure 6 and Figure 8 A locking bar 27 is rotatably connected to the surface of the protective cover 25, a locking block 271 is fixedly connected to the outer surface of the locking bar 27, a torsion spring 272 is fixedly connected to the surface of the locking bar 27, and the torsion spring 272 drives the locking bar 27 to rotate. A locking groove 341 is provided on the surface of the stop block 34 away from the placement plate 2, the locking groove 341 penetrates to the surface of the stop block 34 away from the mounting plate 33, and the locking bar 27 and the locking block 271 are inserted into the locking groove 341. A groove 342 is provided on the groove wall of the locking groove 341 for the locking block 271 to be inserted, the groove 342 does not penetrate to the surface of the stop block 34 away from the placement plate 2, and the groove 342 does not penetrate to the surface of the stop block 34 facing the electric energy meter 23.

[0043] Reference Figure 6 and Figure 8 When the locking bar 27 is located in the locking groove 341 , the torsion spring 272 drives the locking bar 27 to rotate, so that the locking block 271 moves from the locking groove 341 to the groove 342 , thereby limiting the stop block 34 by the locking bar 27 .

[0044] The implementation principle of Example 2 is as follows: the staff first rotates the mounting plate 33 to allow the mounting plate 33 to abut against the mounting seat 31, so that the mounting block 352 is inserted into the mounting groove 331, and the mounting block 352 drives the stop block 34 to protrude through the connecting strip 332. Then the staff rotates the protective cover 25 to allow the locking bar 27 to be inserted into the locking groove 341, and the torsion spring 272 drives the locking bar 27 to rotate, so that the locking block 271 is inserted into the groove 342.

[0045] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0046] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. A copper busbar type three-phase electric energy meter box, comprising a box body (1), a placement plate (2) is provided in the box body (1), an electric energy meter (23) is provided on the placement plate (2), a copper busbar (22) is provided on the box body (1) for passing through the placement plate (2), and the copper busbar (22) is used to electrically connect the electric energy meter (23), characterized in that: The placement plate (2) is provided with a mounting seat (31), the placement plate (2) is provided with a rotating seat (3), and the rotating seat (3) is rotatably connected to a mounting plate (33); when the mounting plate (33) abuts against the mounting seat (31), the mounting plate (33), the rotating seat (3) and the mounting seat (31) all shield the connection between the copper busbar (22) and the electric energy meter (23).

2. A copper busbar type three-phase electric energy meter box according to claim 1, characterized in that: A protective cover (25) is rotatably connected to the electric energy meter (23), and the protective cover (25) is used to shield the connection between the electric energy meter (23) and the copper busbar (22). The protective cover (25) is provided with a connection hole (251) for the copper busbar (22) to pass through; when the protective cover (25) shields the connection between the electric energy meter (23) and the copper busbar (22), the mounting plate (33) does not block the connection hole (251).

3. A copper busbar type three-phase electric energy meter box according to claim 2, characterized in that: A stop block (34) is provided on the mounting plate (33), and the stop block (34) is located in the connecting hole (251); when the stop block (34) is located in the connecting hole (251), the mounting plate (33) cannot rotate.

4. A copper busbar type three-phase electric energy meter box according to claim 3, characterized in that: The placement plate (2) is provided with a support bar (24), the mounting seat (31) is provided with a support groove (32) for inserting the support bar (24), and the groove wall of the support groove (32) is provided with two limit blocks (321); when the support bar (24) is inserted into the support groove (32), the support bar (24) is located between the two limit blocks (321).

5. A copper busbar type three-phase electric energy meter box according to claim 4, characterized in that: The mounting seat (31) is provided with a mounting spring (351), the mounting spring (351) is provided with a mounting block (352), and the mounting plate (33) is provided with a mounting groove (331) for inserting the mounting block (352); when the mounting plate (33) abuts against the mounting seat (31), the mounting spring (351) drives the mounting block (352) to be inserted into the mounting groove (331).

6. A copper busbar type three-phase electric energy meter box according to claim 5, characterized in that: The stop block (34) is slidably connected to the mounting plate (33), a connecting strip (332) is slidably connected to the mounting plate (33), the connecting strip (332) is located on the moving path of the mounting block (352), a connecting bevel (333) is provided on the connecting strip (332), the distance between the connecting bevel (333) and the electric energy meter (23) gradually increases along the direction from the mounting seat (31) to the rotating seat (3), and the connecting bevel (333) is located on the moving path of the stop block (34); when the mounting block (352) is inserted into the mounting groove (331), the mounting block (352) drives the stop block (34) to move through the connecting strip (332), and the stop block (34) is located in the connecting hole (251).

7. A copper busbar type three-phase electric energy meter box according to claim 5, characterized in that: The protective cover (25) is rotatably connected with a locking bar (27), the locking bar (27) is provided with a locking block (271), the stop block (34) is provided with a locking groove (341) for the locking bar (27) to be inserted, the groove wall of the locking groove (341) is provided with a groove (342) for the locking block (271) to be inserted, and the groove (342) does not penetrate to the surface of the stop block (34) on which the locking groove (341) is provided; when the locking block (271) is located in the groove (342) and the stop block (34) is located in the connecting hole (251), the locking bar (27) and the stop block (34) are fixed to each other.

8. A copper busbar type three-phase electric energy meter box according to claim 7, characterized in that: The locking groove (341) penetrates to the surface of the stop block (34) away from the mounting plate (33); a torsion spring (272) is provided on the locking bar (27); the torsion spring (272) drives the locking bar (27) to rotate; when the stop block (34) is inserted into the connecting hole (251), the stop block (34) can drive the locking block (271) to rotate into the locking groove (341).

9. A copper busbar type three-phase electric energy meter box according to claim 5, characterized in that: The mounting seat (31) is provided with a receiving spring (361), the receiving spring (361) is provided with a receiving bar (362), the receiving bar (362) is provided with a first receiving block (363) and a second receiving block (364), the second receiving block (364) can be located on the moving path of the mounting block (352), the support bar (24) is provided with a receiving groove (26) for inserting the first receiving block (363), the receiving spring (361) drives the first receiving block (363) to be inserted into the receiving groove (26); when the first receiving block (363) is inserted into the receiving groove (26), the second receiving block (364) is not located on the moving path of the mounting block (352).

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