Electric meter box and electric meter box assembly

Abstract

The invention discloses an electric meter box and an electric meter box assembly, and the electric meter box comprises a box bottom and a box cover. The box bottom is provided with a mounting seat outside the accommodating cavity, the mounting seat is provided with a mounting part, and the mounting part is provided with a mounting hole penetrating up and down; the inner side of the box cover is provided with two limiting parts which are distributed up and down at an interval, each limiting part is provided with a first insertion hole which is through up and down, and a mounting part is accommodated between the two limiting parts; the electric meter box further comprises a plug pin, the plug pin comprises a limiting shaft and an elastic clamping hook, the limiting shaft is vertically arranged in the mounting hole and the first inserting hole in a penetrating mode, the elastic clamping hook is connected with the upper end of the limiting shaft, the box cover rotates around the limiting shaft in the circumferential direction, and the elastic clamping hook is movably connected with the box cover in the local circumferential direction in a clamped mode. When the box cover is mounted, the position between the two limiting parts of the box cover is aligned with the mounting part, positioning is facilitated, after the limiting shaft of the plug pin is inserted into the first inserting holes of the two limiting parts and the mounting hole of the mounting part, the elastic clamping hook is partially clamped with the box cover, the mounting efficiency is high, the structure is reasonable and practical, and production and manufacturing are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of electric meter boxes, and in particular to an electric meter box and an electric meter box assembly. Background Art

[0002] The meter box is a device used to store meters. According to the electrical wiring requirements, switchgear, measuring instruments, protective electrical appliances and auxiliary equipment are assembled in the meter box, and the market often has protection level requirements for the meter box.

[0003] The electric meter box generally includes a box bottom and a box cover. The box bottom has a receiving cavity open to the front. The box cover is rotatably arranged on the box bottom and is used to open or close the opening of the receiving cavity. The current electric meter box has the following problems:

[0004] First, currently, the bottom and cover of the box are usually connected by a hinge. One side of the hinge is fixed to the cover by screws, and the other side of the hinge is fixed to the bottom of the box by screws. When installing the cover, it is inconvenient to position and not easy to align with the screw holes of the hinge. In addition, there are many screw holes, which leads to low installation efficiency.

[0005] Second, the hinge position is prone to water leakage, which affects the protection level of the meter box;

[0006] Third, conventional ventilation holes have poor waterproofing effect, and components in the meter box are prone to short-circuiting and burning due to water ingress at the site of use. The waterproofing problem can be solved by plugging the ventilation holes with glue, but it is not conducive to ventilation and heat dissipation. Summary of the invention

[0007] The first technical problem to be solved by the present invention is to provide an electric meter box with higher installation efficiency in view of the current status of the prior art.

[0008] The second technical problem to be solved by the present invention is to provide an electric meter box with a higher protection level.

[0009] The third technical problem to be solved by the present invention is to provide an electric meter box that meets both waterproofing and ventilation requirements.

[0010] The fourth technical problem to be solved by the present invention is to provide an electric meter box assembly.

[0011] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: an electric meter box, characterized in that: it includes

[0012] The box bottom has a receiving cavity open to the front;

[0013] A box cover is rotatably arranged on the box bottom and is used to open or close the opening of the accommodating chamber;

[0014] Features:

[0015] The box bottom is provided with a mounting seat outside the accommodating cavity, the mounting seat having a mounting portion, and the mounting portion having a mounting hole penetrating from top to bottom;

[0016] The inner side of the box cover has two limit parts spaced apart from each other, each limit part has a first insertion hole penetrating from top to bottom, and the space between the two limit parts is used to accommodate the installation part;

[0017] The electric meter box also includes a latch, which includes a limit shaft that passes through the installation hole and the first plug hole up and down, and an elastic hook connected to the upper end of the limit shaft. The limit shaft allows the box cover to rotate around its circumference, and the elastic hook is movably engaged with a part of the box cover in the circumferential direction.

[0018] In order to facilitate the elastic hook to engage, the inner side of the box cover also has a engaging portion located above the two limiting portions, the engaging portion has a second insertion hole that passes through from top to bottom, the limiting shaft is inserted into the second insertion hole, the lower end surface of the engaging portion is a horizontally extending plane, and the lower end of the elastic hook is engaged with the engaging portion circumferentially and movably. The engaging portion is provided to facilitate the engagement of the elastic hook without affecting the rotation of the box cover.

[0019] To further solve the second technical problem of the present application, preferably, the box bottom has a water guide portion located outside the left side or / and right side of the accommodating cavity, the water guide portion has a cavity open to the front, and the cavity wall of the cavity close to the side of the accommodating cavity is recorded as a first cavity wall;

[0020] The inner wall of the box cover has a groove which is recessed forward and into which the front end of the first cavity wall is inserted;

[0021] The water guide portion is provided with a sealing member that is in contact with the inner cavity wall of the first cavity wall, and the front end surface of the sealing member abuts against the end surface of the outer groove wall where the groove is located in a front-to-back manner;

[0022] The mounting seat is located in the cavity.

[0023] By setting the sealing member, the box cover and the box bottom are sealed together, which can prevent water from entering the box bottom and improve the protection level.

[0024] In order to prevent water from entering the bottom of the box, the front end of the seal has a water retaining flange extending in the left and right directions, and the front end face of the water retaining flange abuts against the end face of the outer groove wall where the groove is located. The water retaining flange is provided to prevent water from entering the bottom of the box, thereby improving the protection level.

[0025] To further solve the third technical problem of the present application, preferably, at least two drainage parts are arranged in sequence along the up-down direction on the left or / and right outer wall of the bottom of the box, and along the water flow direction, the upper end of the downstream drainage part is located on the inner side of the upstream drainage part along the left-right direction, and a ventilation hole connected to the accommodating cavity is provided between the upstream and downstream drainage parts;

[0026] The drainage part is located behind the water guide part.

[0027] Ventilation is facilitated by providing ventilation holes, and water flows downward due to gravity and will not cross the ventilation holes horizontally and enter the bottom of the box, thus meeting both waterproofing and ventilation requirements.

[0028] In order to further facilitate waterproofing, the box bottom is also provided with a ventilation cover on the corresponding side wall, which is set outside all the drainage parts, and the ventilation cover has air inlet holes extending in the left and right directions and respectively connected to the outside and the ventilation holes. By providing the ventilation cover, the water flow is blocked, so that the water flow will not enter the box bottom through the ventilation holes, and ventilation and heat dissipation are facilitated.

[0029] Preferably, the electric meter box further includes

[0030] A switch mounting plate is arranged in the accommodating cavity;

[0031] A partition is arranged on the switch mounting plate; the partition includes

[0032] an extension portion extending in the front-rear direction;

[0033] A bending portion connected to a position adjacent to the upper end of the rear end of the extension portion, the bending portion extending in the left-right direction and having a through hole penetrating from front to back;

[0034] The middle part of the switch mounting plate has a slot recessed backward, a mounting cavity connected to the slot, and through holes respectively connected to the mounting cavity and the perforation, the slot is used to accommodate the extension part, and the mounting cavity is used to accommodate the bending part;

[0035] The bolt passes through the through hole in the front-to-back direction, is threadedly connected with the box bottom after being penetrated, and the bent portion presses the switch mounting plate against the box bottom.

[0036] In this way, on the one hand, the partition divides the switch mounting plate into two left and right areas, isolating the circuit breakers on the left and right sides. On the other hand, the partition reinforces the switch mounting plate, which is conducive to the stable connection between the switch mounting plate and the bottom of the box.

[0037] In order to facilitate the positioning of the partition, the partition also includes

[0038] The positioning portion is connected to the bending portion and extends along the front-rear direction. The positioning portion is inserted into the through hole of the switch mounting plate.

[0039] In order to limit the partition, the extension of the partition has a forward recessed limit groove, and the upper and lower ends of the limit groove are limit convex parts for limiting the switch mounting plate in the upper and lower directions. By setting the limit groove, on the one hand, the limit convex part is formed, and the limit convex part limits the switch mounting plate in the upper and lower directions, and on the other hand, it is easy to plug with the switch mounting plate.

[0040] The technical solution adopted by the present invention to solve the fourth technical problem is: an electric meter box assembly, characterized in that: it includes the electric meter box as described above;

[0041] The electric meter box assembly also includes

[0042] A first circuit breaker is arranged on the switch mounting plate and is located on the left side of the partition;

[0043] The second circuit breaker is arranged on the switch mounting plate and is located on the right side of the partition.

[0044] Compared with the prior art, the advantages of the present invention are that when installing the box cover, the position between the two limiting parts of the box cover is aligned with the mounting part for easy positioning, and then the limiting shaft of the latch is inserted into the first plug holes of the two limiting parts and the mounting hole of the mounting part, and the elastic hook is partially engaged with the box cover, so the installation efficiency is high, the structure is reasonable and practical, and it is also easy to produce and manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic diagram of Embodiment 1 of the present invention;

[0046] Figure 2 It is a schematic diagram of another state of the first embodiment of the present invention (the box cover is in the open state);

[0047] Figure 3 for Figure 2 A magnified schematic diagram of the local A in the middle;

[0048] Figure 4 for Figure 2 Exploded diagram of

[0049] Figure 5 for Figure 4 A magnified schematic diagram of the part B in the middle;

[0050] Figure 6 for Figure 1 Exploded view of the (with some parts removed);

[0051] Figure 7 for Figure 6 A magnified schematic diagram of the local C in the middle;

[0052] Figure 8 is a cross-sectional view of Embodiment 1 of the present invention;

[0053] Fig. 9 for Figure 8 A magnified schematic diagram of the local D in the middle;

[0054] Fig.10 is a cross-sectional view of another position of the first embodiment of the present invention;

[0055] Fig.11 for Fig.10 A magnified schematic diagram of the local E in the middle;

[0056] Fig.12 is a schematic diagram of a partition in Embodiment 1 of the present invention;

[0057] Fig.13 is a schematic diagram of another angle of the partition in the first embodiment of the present invention;

[0058] Fig.14 is a schematic diagram of a sealing member in Embodiment 1 of the present invention;

[0059] Fig.15 is a schematic diagram of a latch in the first embodiment of the present invention;

[0060] Fig.16 It is a schematic diagram of another angle of the first embodiment of the present invention (without the box cover);

[0061] Fig.17 for Fig.16 Exploded diagram of

[0062] Fig.18 It is a schematic diagram of the assembly of the switch mounting plate, the partition, the first circuit breaker, and the second circuit breaker in the first embodiment of the present invention;

[0063] Fig.19 for Fig.18 A magnified schematic diagram of the local F in the middle;

[0064] Fig. 20 This is a schematic diagram of the second embodiment of the present invention (without the box cover);

[0065] Fig.21 This is a schematic diagram of Embodiment 3 of the present invention (without the box cover);

[0066] Fig. 22 This is a schematic diagram of the fourth embodiment of the present invention (without the box cover). DETAILED DESCRIPTION

[0067] The present invention is further described in detail below with reference to the accompanying drawings.

[0068] Example 1

[0069] See also Figures 1 to 19, which is a preferred embodiment of the electric meter box assembly of the present invention. The electric meter box assembly includes an electric meter box, a first circuit breaker 300, and a second circuit breaker 400. The electric meter box includes main components such as a box bottom 1, a box cover 2, a mounting seat 3, a latch 4, a sealing member 5, a switch mounting plate 100, a partition 200, and bolts.

[0070] The box bottom 1 has a forward-opening accommodating cavity 11; the box bottom 1 has a water guide 12 located outside the left and right sides of the accommodating cavity 11, and the water guide 12 has a forward-opening cavity 121, and the cavity wall of the cavity 121 close to the accommodating cavity 11 is recorded as a first cavity wall 121a. In other embodiments, the water guide 12 can also be arranged only on the left or right side of the accommodating cavity 11.

[0071] The box cover 2 is rotatably arranged on the box bottom 1, and is used to open or close the opening of the accommodating chamber 11; the inner wall of the box cover 2 has a groove 23 that is recessed forward and for the front end of the first cavity wall 121a to be inserted into; the inner side of the box cover 2 has two limit parts 21 that are spaced apart from each other, each limit part 21 has a first plug hole 21a that passes through the upper and lower parts, and the space between the two limit parts 21 is used to accommodate the mounting part 31; the inner side of the box cover 2 also has a clamping part 22 located above the two limit parts 21, the clamping part 22 has a second plug hole 22a that passes through the upper and lower parts, and the lower end face of the clamping part 22 is a horizontally extending plane.

[0072] The mounting seat 3 is mounted on the box bottom 1 and is located outside the accommodating cavity 11 . The mounting seat 3 has a mounting portion 31 . The mounting portion 31 has a mounting hole 311 penetrating from top to bottom. The mounting seat 3 is located in the cavity 121 .

[0073] The latch 4 includes a limit shaft 41 which is passed through the mounting hole 311, the first plug hole 21a and the second plug hole 22a from top to bottom, and an elastic hook 42 which is connected to the upper end of the limit shaft 41. The limit shaft 41 allows the box cover 2 to rotate circumferentially, and the elastic hook 42 is circumferentially movably engaged with a part of the box cover 2, specifically, the lower end of the elastic hook 42 is circumferentially movably engaged with the engaging portion 22.

[0074] The seal 5 is arranged in the water guide 12 and fits with the inner cavity wall of the first cavity wall 121a. The front end face of the seal 5 abuts against the end face of the outer groove wall 23a where the groove 23 is located. The front end of the seal 5 has a water retaining flange 51 extending in the left-right direction. The front end face of the water retaining flange 51 abuts against the end face of the outer groove wall 23a where the groove 23 is located. The left and right outer walls of the bottom 1 are provided with drainage parts 10 arranged in sequence in the up-down direction. In the direction of water flow, the upper end of the downstream drainage part 10 is located on the inner side of the upstream drainage part 10 in the left-right direction. The upstream and downstream drainage parts 10 are provided with ventilation holes 10a connected to the accommodating cavity 11 between the two. The position of the drainage part 10 is located behind the water guide 12. The number of drainage parts 10 is adjusted as needed, and is at least two. The drainage part 10 can also be arranged only on the left side or only on the right side.

[0075] A ventilation hood 20 is also provided on the corresponding side wall of the box bottom 1 and is sleeved outside all the drainage parts 10. The ventilation hood 20 has air inlet holes 20a extending in left and right directions and respectively connected to the outside and the ventilation holes 10a.

[0076] The switch mounting plate 100 is disposed in the accommodating cavity 11. The middle portion of the switch mounting plate 100 has a slot 101 that is recessed backward, a mounting cavity 102 that is connected to the slot 101, and a through hole 102a that is connected to the mounting cavity 102 and the through hole 202a, respectively. The slot 101 is used to accommodate the extension portion 201, and the mounting cavity 102 is used to accommodate the bent portion 202.

[0077] The partition 200 is arranged on the switch mounting plate 100. The partition 200 includes an extension portion 201, a bent portion 202, and a positioning portion 203. The extension portion 201 extends in the front-to-back direction, and has a limit groove 201a that is recessed forward, and the upper and lower ends of the limit groove 201a are limit convex portions 201b for limiting the upper and lower positions of the switch mounting plate 100. The bent portion 202 is connected to the rear end of the extension portion 201, which is adjacent to the upper end, and the bent portion 202 extends in the left-right direction and has a through hole 202a that penetrates from front to back. The positioning portion 203 is connected to the bent portion 202 and extends in the front-to-back direction. The positioning portion 203 is inserted into the through hole 102a of the switch mounting plate 100.

[0078] The bolt passes through the through hole 102 a and the through hole 202 a in the front-to-back direction and is threadedly connected to the box bottom 1 , and the bent portion 202 presses the switch mounting plate 100 against the box bottom 1 .

[0079] The electric meter box assembly includes an electric meter box; a partition 200 separates a switch mounting plate 100 into a left mounting plate and a right mounting plate; a first circuit breaker 300 is arranged on the switch mounting plate 100 and is located on the left side of the partition 200, that is, the first circuit breaker 300 is arranged on the left mounting plate 103; a second circuit breaker 400 is arranged on the switch mounting plate 100 and is located on the right side of the partition 200, that is, the second circuit breaker 400 is arranged on the right mounting plate 104.

[0080] The working principle and instructions for use are as follows.

[0081] Align the position between the two limiting parts 21 of the box cover 2 with the mounting part 31 of the mounting seat 3 for easy positioning, then insert the limiting shaft 41 of the latch 4 into the first insertion hole 21a of the limiting part 21 and the second insertion hole 22a of the clamping part 22, and then clamp the elastic hook 42 with the clamping part 22. The assembly is convenient and quick. When disassembling, just remove the latch 4, which is also convenient and quick.

[0082] The ventilation hood 20 and the ventilation holes 20a are provided to facilitate ventilation and heat dissipation. The drainage portion 10 is provided to facilitate water flow downward, and water will not pass through the ventilation holes 20a and enter the bottom 1 of the box. In this way, both waterproofing and ventilation requirements can be taken into account at the same time.

[0083] By providing the water guide 12 and the sealing member 5, even if a small amount of water enters the water guide 12, it will not pass through the sealing member 5 and enter the accommodating cavity 11 of the box bottom 1, so that the protection level of the electric meter box is higher.

[0084] The partition 200 separates the first circuit breaker 300 and the second circuit breaker 400 to meet the requirements of safety distance, etc. The first circuit breaker 300 is a molded case circuit breaker for incoming lines, and the second circuit breaker 400 is a molded case circuit breaker for outgoing lines. In addition, the bending portion 202 of the partition 200 is conducive to the stable connection between the switch mounting plate 100 and the box bottom 1. Moreover, the partition 200 of this embodiment can be applied to the installation of circuit breakers (switches) of various specifications. For example, the partition 200 is not only applicable to Figures 1 to 19 In addition to the switch installation shown, it is also applicable to Figure 20 to Figure 22 The switch installation is shown, so that the compatibility of the partition 200 is higher.

[0085] Example 2

[0086] See also Fig. 20 , which is another embodiment of the electric meter box assembly of the present invention. The difference between this embodiment and embodiment 1 is that the first circuit breaker 300 and the second circuit breaker 400 have different structures and different installation methods. The first circuit breaker 300 is a miniature circuit breaker for incoming lines, and the second circuit breaker 400 is a miniature circuit breaker for outgoing lines.

[0087] Example 3

[0088] See also Fig.21 , which is another embodiment of the electric meter box assembly of the present invention. The difference between this embodiment and embodiment 1 is that the shape of the switch mounting plate 100 is different, and the structures and installation methods of the first circuit breaker 300 and the second circuit breaker 400 are different. The first circuit breaker 300 is a miniature circuit breaker for incoming lines, and the second circuit breaker 400 is a molded case circuit breaker for outgoing lines.

[0089] Example 4

[0090] See also Fig. 22 , which is another embodiment of the electric meter box assembly of the present invention. The difference between this embodiment and embodiment 1 is that the shape of the switch mounting plate 100 is different, and the structures and installation methods of the first circuit breaker 300 and the second circuit breaker 400 are different. The first circuit breaker 300 is a molded case circuit breaker for incoming lines, and the second circuit breaker 400 is a miniature circuit breaker for outgoing lines.

Claims

1. An electric meter box, characterized in that: Included The box bottom (1) has a accommodating cavity (11) open toward the front; A box cover (2) is rotatably arranged on the box bottom (1) and is used to open or close the opening of the accommodating chamber (11); Features: The box bottom (1) is provided with a mounting seat (3) outside the accommodating cavity (11), the mounting seat (3) having a mounting portion (31), and the mounting portion (31) having a mounting hole (311) penetrating from top to bottom; The inner side of the box cover (2) has two limit parts (21) spaced apart from each other in the upper and lower parts, each limit part (21) has a first insertion hole (21a) penetrating in the upper and lower parts, and the space between the two limit parts (21) is used to accommodate the mounting part (31); The electric meter box also includes a latch (4), the latch (4) including a limit shaft (41) which is vertically inserted into the mounting hole (311) and the first plug hole (21a), and an elastic hook (42) connected to the upper end of the limit shaft (41), the limit shaft (41) allows the box cover (2) to rotate around the limit shaft, and the elastic hook (42) is movably engaged with a part of the box cover (2) in the circumferential direction.

2. The electric meter box according to claim 1, characterized in that: The inner side of the box cover (2) also has a clamping portion (22) located above the two limiting portions (21), the clamping portion (22) has a second insertion hole (22a) penetrating from top to bottom, the limiting shaft (41) is inserted into the second insertion hole (22a), the lower end surface of the clamping portion (22) is a horizontally extending plane, and the lower end of the elastic hook (42) is circumferentially movably clamped with the clamping portion (22).

3. The electric meter box according to claim 1, characterized in that: The box bottom (1) has a water guide portion (12) located outside the left side or / and right side of the accommodating cavity (11), the water guide portion (12) has a cavity (121) open to the front, and the cavity wall of the cavity (121) close to the accommodating cavity (11) is recorded as a first cavity wall (121a); The inner wall of the box cover (2) has a groove (23) that is recessed forward and into which the front end of the first cavity wall (121a) is inserted; The water guide portion (12) is provided with a sealing member (5) which is in contact with the inner cavity wall of the first cavity wall (121a), and the front end surface of the sealing member (5) is in front-to-back contact with the end surface of the outer groove wall (23a) where the groove (23) is located; The mounting seat (3) is located in the cavity (121).

4. The electric meter box according to claim 3, characterized in that: The front end of the sealing member (5) has a water retaining flange (51) extending in the left-right direction, and the front end surface of the water retaining flange (51) abuts against the end surface of the outer groove wall (23a) where the groove (23) is located.

5. The electric meter box according to claim 3, characterized in that: At least two drainage parts (10) are arranged in sequence along the up-down direction on the left or / and right outer wall of the box bottom (1); along the water flow direction, the upper end of the downstream drainage part (10) is located inside the upstream drainage part (10) along the left-right direction; and a ventilation hole (10a) connected to the accommodating chamber (11) is provided between the upstream and downstream drainage parts (10); The drainage portion (10) is located behind the water guide portion (12).

6. The electric meter box according to claim 5, characterized in that: The box bottom (1) is also provided with a ventilation hood (20) on the corresponding side wall, which is mounted outside all the drainage parts (10). The ventilation hood (20) has air inlet holes (20a) extending in left and right directions and respectively connected to the outside and the ventilation holes (10a).

7. The electric meter box according to claim 1, characterized in that: The electric meter box also includes A switch mounting plate (100) is arranged in the accommodating cavity (11); A partition plate (200) is arranged on the switch mounting plate (100); The partition (200) comprises An extension portion (201) extending in the front-rear direction; A bending portion (202) connected to a position of the rear end of the extension portion (201) adjacent to the upper end, the bending portion (202) extending in the left-right direction and having a through hole (202a) penetrating from front to back; The middle portion of the switch mounting plate (100) comprises a slot (101) recessed backward, a mounting cavity (102) connected to the slot (101), and a through hole (102a) respectively connected to the mounting cavity (102) and the through hole (202a); the slot (101) is used to accommodate the extension portion (201), and the mounting cavity (102) is used to accommodate the bending portion (202); The bolt passes through the through hole (102a) and the through hole (202a) in the front-to-back direction and is threadedly connected to the box bottom (1), and the bent portion (202) presses the switch mounting plate (100) against the box bottom (1).

8. The electric meter box according to claim 7, characterized in that: The partition (200) also includes The positioning portion (203) is connected to the bending portion (202) and extends in the front-rear direction. The positioning portion (203) is inserted into the through hole (102a) of the switch mounting plate (100).

9. The electric meter box according to claim 7, characterized in that: The extension portion (201) of the partition plate (200) has a forward recessed limiting groove (201a), and the upper and lower ends of the limiting groove (201a) are limiting convex portions (201b) for limiting the upper and lower positions of the switch mounting plate (100).

10. An electric meter box assembly, characterized in that: Comprising an electric meter box as claimed in any one of claims 7 to 9; The electric meter box assembly also includes A first circuit breaker (300) is arranged on the switch mounting plate (100) and is located on the left side of the partition plate (200); The second circuit breaker (400) is arranged on the switch mounting plate (100) and is located on the right side of the partition plate (200).

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