Integrated stamping forming type intelligent electric meter shell

Abstract

The invention relates to an integrated stamping forming type intelligent electric meter shell, and relates to the technical field of electric meter shells, the integrated stamping forming type intelligent electric meter shell comprises a rear cover and a front cover which are integrally formed, locking devices connected with the rear cover are symmetrically arranged in the front cover, and locking boxes clamped and matched with the locking devices are correspondingly arranged on the rear cover; the front cover comprises a shell attached to the end of the rear cover, the locking devices are located at the positions, corresponding to the locking boxes, of the two sides of the interior of the shell, each locking device comprises a positioning shaft fixedly connected with the shell, the positioning shafts are movably connected with locking clamping jaws, and the ends of the locking clamping jaws are clamped in the locking boxes. The extending deflector rod drives the locking clamping jaw to rotate on the outer side of the positioning shaft, at the moment, the other end of the locking clamping jaw moves upwards on the inner side of the locking cavity to extrude the self-locking elastic piece and move the front cover towards the outer side till the end of the locking clamping jaw is completely separated from the opening of the locking cavity, a worker can conveniently disassemble the rear cover and the front cover, and the working efficiency is improved. The time consumed for maintaining the inner circuit board is reduced, and the maintenance is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of electric meter casings, and in particular to an integrated stamping-formed intelligent electric meter casing. Background Art

[0002] Smart meters are modern energy metering devices that can accurately measure the amount of energy used with minimal error, providing users and power supply departments with accurate electricity consumption data. The meter housing is an important part of the meter, which contains precise electronic components and circuits. The housing can effectively prevent damage to the inside of the meter caused by external physical impact, dust, moisture, etc., to ensure the normal operation of the meter.

[0003] There are many styles of meter casings. One is a split meter casing. When a fault occurs inside the meter, the casing of the corresponding part can be easily opened for repair and replacement of parts without disassembling the entire meter. Due to the presence of multiple connecting parts, poor sealing may occur, increasing the risk of dust and water vapor entering. There are gaps at the joints of the split meter casing. Another type is an integrated meter casing. The entire casing is a complete structure without obvious splicing or detachable parts, thereby improving the sealing and protection performance of the casing.

[0004] At present, most of the electric meter shells use an integrated type. During the use of this type of electric meter shell, it is found that bolts are needed to fix the circuit board inside the meter when it is installed. Therefore, when performing internal maintenance, not only the shell needs to be removed, but also the bolts on the circuit board need to be removed. The steps are relatively cumbersome, so it takes a long time to maintain. In addition, the window for viewing the meter value generally has a numerical display screen. As the use time increases, more stains and scratches will appear on the surface of the numerical display screen, affecting the accuracy of reading the value. Summary of the invention

[0005] Technical issues to be solved

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, meet practical needs, and provide an integrated stamping-formed smart meter housing to solve the above-mentioned technical problems.

[0007] Technical Solution

[0008] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is:

[0009] An integrated stamping-formed smart meter housing comprises an integrated rear cover and a front cover, wherein the front cover is symmetrically provided with a locker connected to the rear cover, and the rear cover is correspondingly provided with a locking box engaged with the locker;

[0010] The rear cover is also provided with a positioning column and an elastic ring for fixing the circuit board. The positioning column and the elastic ring are symmetrically arranged in the rear cover, and the elastic ring is located above the positioning column. The circuit board can be clamped between the elastic ring and the positioning column, so as to quickly locate and install the position of the circuit board;

[0011] The front cover includes an outer shell that fits on the end of the rear cover, and the locker is located on both sides of the inner side of the outer shell at positions corresponding to the locking box, wherein the locker includes a positioning shaft fixedly connected to the outer shell, and a locking claw is movably connected to the positioning shaft, and the end of the locking claw is clamped in the locking box. Through the clamping fit at the connection, it is convenient for the staff to install and disassemble the rear cover and the front cover.

[0012] As a further technical solution of the present invention, the locking box includes a box body, a locking cavity is provided on the inner side of the box body, a self-locking spring is fixedly connected to the inner side of the locking cavity, and the bottom of the self-locking spring is inclined. The inclined self-locking spring applies downward pressure to the end of the locking claw, so that the end of the locking claw is stuck in the locking cavity, and the end of the locking cavity is provided with an opening connected to the outside to facilitate the entry and exit of the end of the locking claw.

[0013] As a further technical solution of the present invention, the end of the locking claw passes through the opening at the end of the locking cavity and is clamped in the locking cavity. The self-locking spring is located above the locking claw, and the bottom of the self-locking spring is in contact with the locking claw. An extension rod is provided at the other end of the locking claw, which facilitates the rotation of the locking claw, thereby facilitating the disassembly of the connection by the staff. An arc hole is provided on the side of the outer shell, which slides with the extension rod, and the extension rod passes through the arc hole.

[0014] As a further technical solution of the present invention, a connecting protrusion corresponding to the positioning column is provided at the end of the shell, and the connecting protrusion and the positioning column are respectively provided with positioning bolt holes. A through hole and an indicator light hole are also provided on the shell, and a reinforcing rib is provided in a rectangular array at one end of the through hole on the inner side of the shell.

[0015] As a further technical solution of the present invention, ear plates which are integrally arranged with the outer shell are symmetrically provided on both sides above the through hole, and a flip protective cover is movably connected between the symmetrical ear plates. The flip protective cover is located on the side of the through hole to shield and protect the inner side of the through hole.

[0016] As a further technical solution of the present invention, during disassembly, it is only necessary to press the extension lever at the other end of the locking claw, and the extension lever slides downward in the arc groove. The extension lever drives the end of the locking claw to move, and the locking claw rotates with the positioning axis as the center. At this time, the other end of the locking claw rotates upward on the inner side of the locking cavity, squeezing the self-locking spring sheet, and then moving the outer shell outward until the end of the locking claw is separated from the opening on the side of the locking cavity, making it convenient for the staff to disassemble the rear cover and the front cover.

[0017] As a further technical solution of the present invention, the flip protective cover includes a guard plate cover, the end of the guard plate cover is integrally provided with a shaft sleeve, a shaft rod is inserted in the shaft sleeve, both ends of the shaft rod are respectively sleeved with torsion springs, and the end of the shaft rod passes through the torsion spring and is movably connected to the ear plate.

[0018] As a further technical solution of the present invention, one end of the torsion spring is clamped on the side of the shell, the other end of the torsion spring is bent and clamped on the end of the guard cover, and the torsion spring is located between the ear plate and the sleeve.

[0019] (3) Beneficial effects:

[0020] A. In the present invention, firstly, the bolt connecting the protruding end is removed, and then the extension lever at the end of the locking claw is pressed downward, and the extension lever slides inside the arc hole, and at the same time, the extension lever drives the locking claw to rotate outside the positioning shaft, and the locking claw rotates with the positioning shaft as the axis. At this time, the other end of the locking claw moves upward inside the locking cavity to squeeze the self-locking spring sheet. When the end of the locking claw moves to the opening of the locking cavity, the front cover is moved outward until the end of the locking claw is completely separated from the opening of the locking cavity, so that the staff can disassemble the rear cover and the front cover conveniently, reduce the time consumed in the maintenance of the inner circuit board, and facilitate maintenance;

[0021] B. In the present invention, the circuit board is placed in the rear cover, and the positioning column penetrates the corresponding hole on the circuit board to position the circuit board, and then the top of the circuit board squeezes the elastic ring. The reaction force generated by the elastic ring after being squeezed is applied to the circuit board, and the positioning column is used to squeeze and fix the circuit board, and then the housing is buckled on the end of the rear cover, and the bolt penetrates the positioning bolt hole on the connecting protrusion and is threadedly connected with the positioning bolt hole in the positioning column, so as to reinforce the connection between the rear cover and the front cover, which is convenient for the staff to install the circuit board, and does not need to spend too much time to remove the bolt during disassembly, so as to facilitate the disassembly of the circuit board, and then facilitate the replacement of the circuit board, shortening the replacement time;

[0022] C. In the present invention, the elastic ring is installed on the outside of the shaft, and one end of the elastic ring is against the outside of the shell. At this time, the spring force on the elastic ring is applied to the guard cover through the other end of the elastic ring. The guard cover rotates with the shaft as the center until the guard cover fits on the through hole at the end of the shell. The guard cover covers the through hole, which can prevent the numerical display screen facing forward in the through hole from being stained or scratched after long-term use, thereby affecting the numerical reading of the electric meter;

[0023] D. In the present invention, the inner side of the housing is integrally provided with reinforcing ribs, and the reinforcing ribs are distributed around the through hole in a rectangular array, which can improve the structural strength of the front cover after integral molding, and the reinforcing ribs on the inner side of the front cover can also improve the impact resistance, so that the reinforcing ribs have explosion-proof ability, improve the protection effect of the inner circuit board, and extend the service life;

[0024] E. In the present invention, when the electric meter is installed at a high position and it is inconvenient to read the numerical value, the staff can move the bottom of the guard cover upward through the groove plate, and the guard cover rotates with the shaft rod as the axis through the shaft sleeve. The guard cover drives the reflector embedded on the side to rotate, so that the reflector and the numerical screen of the electric meter form a certain angle, thereby facilitating the staff to check the numerical value through the reflection of the reflector. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 For the present invention Figure 1 A partial enlarged schematic diagram of

[0027] Figure 3 It is a schematic diagram of the internal structure of the back cover in the present invention;

[0028] Figure 4 For the present invention Figure 3 A partial enlarged schematic diagram of

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the front cover in the present invention;

[0030] Figure 6 For the present invention Figure 5 Schematic diagram of the internal structure;

[0031] Figure 7 For the present invention Figure 6 A partial enlarged schematic diagram of

[0032] Figure 8 For the present invention Figure 6 A partial enlarged schematic diagram of

[0033] Fig. 9 It is a schematic diagram of the three-dimensional structure of the locking box in the present invention;

[0034] Fig.10 For the present invention Fig. 9 Another side view of;

[0035] Fig.11 It is a schematic diagram of the bottom structure of the flip protective cover in the present invention;

[0036] Fig.12For the present invention Figure 1 A partial enlarged schematic diagram of .

[0037] In the figure: rear cover -1, front cover -2, shell -21, through hole -22, indicator light hole -23, connecting protrusion -24, reinforcing rib -25, arc hole -26, positioning shaft -27, locking claw -28, flip cover -3, guard cover -31, groove plate -32, reflector -33, sleeve -34, ear plate -4, shaft rod -5, torsion spring -6, positioning column -7, elastic ring -8, locking box -9, box body -91, locking cavity -92, self-locking spring -93. DETAILED DESCRIPTION

[0038] See also Figure 1-6 An integrated stamping type smart meter housing comprises an integrated rear cover 1 and a front cover 2, wherein the front cover 2 is symmetrically provided with a lock connected to the rear cover 1, and the rear cover 1 is correspondingly provided with a locking box 9 engaged with the lock;

[0039] The rear cover 1 is also provided with a positioning column 7 and an elastic ring 8 for fixing the circuit board. The positioning column 7 and the elastic ring 8 are symmetrically arranged in the rear cover 1, and the elastic ring 8 is located above the positioning column 7. The circuit board can be clamped between the elastic ring 8 and the positioning column 7, so that the position of the circuit board can be quickly positioned and installed;

[0040] The front cover 2 includes a shell 21 that is attached to the end of the rear cover 1, and the locker is located at positions on both sides of the inside of the shell 21 corresponding to the locking box 9, wherein the locker includes a positioning shaft 27 fixedly connected to the shell 21, and a locking claw 28 is movably connected to the positioning shaft 27, and the end of the locking claw 28 is clamped in the locking box 9. Through the clamping fit at the connection, it is convenient for the staff to install and disassemble the rear cover 1 and the front cover 2.

[0041] By adopting the above technical solution, a circuit board (not shown in the figure) is placed in the back cover 1. At this time, the positioning column 7 passes through the corresponding hole on the circuit board, and then continues to push the circuit board toward the inside of the back cover. The top of the circuit board fits against the bottom of the elastic ring 8, and the elastic ring 8 is squeezed. The reaction force generated by the deformation of the elastic ring 8 is applied to the circuit board. The position of the circuit board is fixed by squeezing, which facilitates the installation of the circuit board. When disassembling the circuit board, there is no need to use a disassembly tool to disassemble the bolts for a long time, which saves the disassembly time when replacing the circuit board, making it more convenient and quick.

[0042] In this embodiment, please refer to Figure 7-10The locking box 9 includes a box body 91, a locking cavity 92 is provided on the inner side of the box body 91, a self-locking spring 93 is fixedly connected to the inner side of the locking cavity 92, and the bottom of the self-locking spring 93 is inclined. The inclined self-locking spring 93 applies downward pressure to the end of the locking claw 28, so that the end of the locking claw 28 is stuck in the locking cavity 92, and the end of the locking cavity 92 is provided with an opening connected to the outside to facilitate the entry and exit of the end of the locking claw 28.

[0043] In this embodiment, the end of the locking claw 28 passes through the opening at the end of the locking cavity 92 and is clamped in the locking cavity 92. The self-locking spring 93 is located above the locking claw 28, and the bottom of the self-locking spring 93 is in contact with the locking claw 28. An extension rod is provided at the other end of the locking claw 28, which facilitates the rotation of the locking claw 28, thereby facilitating the staff to disassemble the connection. An arc hole 26 that slides with the extension rod is provided on the side of the housing 21, and the extension rod passes through the arc hole 26.

[0044] In this embodiment, a connecting protrusion 24 corresponding to the positioning column 7 is provided at the end of the outer shell 21, and the connecting protrusion 24 and the positioning column 7 are respectively provided with positioning bolt holes. A through hole 22 and an indicator light hole 23 are also provided on the outer shell 21, and a reinforcing rib 25 is provided in a rectangular array at one end of the through hole 22 on the inner side of the outer shell 21.

[0045] In this embodiment, ear plates 4 that are integrally arranged with the outer shell 21 are symmetrically provided on both sides above the through hole 22, and a flip cover 3 is movably connected between the symmetrical ear plates 4. The flip cover 3 is located on the side of the through hole 22 to shield and protect the inner side of the through hole 22.

[0046] By adopting the above technical solution, the housing 21 is buckled on the end of the rear cover 1, and the end of the locking claw 28 enters from the opening on the side of the locking cavity 92, and as the locking claw 28 moves, the end of the locking claw 28 pushes the bottom of the self-locking spring 93 to move upward. After the rear cover 1 and the housing 21 are completely fitted together, the end of the locking claw 28 just completely enters the inner side of the locking cavity 92. At this time, the elasticity of the self-locking spring 93 itself pushes the end of the locking claw 28 to rotate downward, so that the end of the locking claw 28 is stuck in the locking cavity 92, and the rear cover 1 and the front cover 2 are locked;

[0047] When disassembling, it is only necessary to press the extension lever at the other end of the locking claw 28, and the extension lever slides downward in the arc groove 26. The extension lever drives the end of the locking claw 28 to move, and the locking claw 28 rotates with the positioning shaft 27 as the center. At this time, the other end of the locking claw 28 rotates upward on the inner side of the locking cavity 92, squeezing the self-locking spring 93, and then moving the housing 21 outward until the end of the locking claw 28 is separated from the opening on the side of the locking cavity 92, making it convenient for the staff to disassemble the rear cover 1 and the front cover 2.

[0048] In this embodiment, please refer to Figure 11-12 The flip cover 3 includes a guard plate cover 31, and a shaft sleeve 34 is integrally provided at the end of the guard plate cover 31. A shaft rod 5 is inserted in the shaft sleeve 34, and torsion springs 6 are respectively sleeved at both ends of the shaft rod 5. The end of the shaft rod 5 passes through the torsion spring 6 and is movably connected to the ear plate 4.

[0049] In this embodiment, one end of the torsion spring 6 is clamped to the side of the housing 21 , and the other end of the torsion spring 6 is bent and clamped to the end of the guard cover 31 , and the torsion spring 6 is located between the ear plate 4 and the shaft sleeve 34 .

[0050] By adopting the above technical solution, one end of the elastic ring 8 is against the outside of the shell 21. At this time, the spring force on the elastic ring 8 is applied to the guard cover 31 through the other end of the elastic ring 8. The guard cover 31 rotates around the shaft 5 until the guard cover 31 fits against the outside of the shell 21. At this time, the guard cover 31 completely covers the through hole 22 at the end of the shell 21, which protects the numerical display screen on the through hole 22 and prevents stains or scratches on the surface of the numerical display screen after long-term use.

[0051] In this embodiment, the side of the back cover 1 is integrally provided with a positioning frame protrusion, which is inserted into the inner side of the outer shell 21 to position the connection between the back cover 1 and the front cover 2, and improve the sealing effect of the back cover 1 and the front cover 2 after installation, further preventing water vapor or dust from entering the interior, thereby improving the protection effect.

[0052] In this embodiment, a groove plate 32 is integrally provided on the side of the guard cover 31, which is convenient for the staff to open the guard cover 31 and check the numerical value. A reflector 33 is embedded in the side of the guard cover 31. If the installation position of the electric meter is high and it is not convenient to check the numerical value, it can be checked through the reflection of the reflector 33.

[0053] In this embodiment, the bottom of the rear cover 1 is provided with threading holes in a rectangular array for the wires to enter and exit, and the wires pass through the threading holes and are connected to the circuit board in the rear cover 1 .

[0054] By adopting the above technical solution, the integrally stamped back cover 1 and front cover 2 can reduce the gap after installation. The staff first fixes the back cover 1 to the position where it needs to be installed by fasteners, and then places the circuit board into the back cover 1. The positioning posts 7 in the back cover 1 pass through the corresponding holes on the circuit board, and then continue to move the circuit board inward, and place the top of the circuit board to the bottom of the elastic ring 8. The top of the circuit board squeezes the elastic ring 8, and the deformed elastic ring 8 generates a downward reaction force, which is applied to the circuit board. The circuit board is fixed in place with the positioning posts 7 at the bottom, and then the shell 21 is snapped onto the back cover 1. At this time, the locking claw 28 enters from the opening at the end of the locking cavity 92, and as the locking claw 28 moves, the end of the locking claw 28 pushes the self-locking The bottom of the spring piece 93 moves upward, and after the back cover 1 and the shell 21 are fully fitted, the end of the locking claw 28 just completely enters the inner side of the locking cavity 92. At this time, the elasticity of the self-locking spring piece 93 itself pushes the end of the locking claw 28 to rotate downward, so that the end of the locking claw 28 is stuck in the locking cavity 92, and the back cover 1 and the front cover 2 are locked. The numerical display screen of the circuit board is located in the through hole 22 on the shell 21, and one end of the elastic ring 8 is against the outside of the shell 21. At this time, the spring force on the elastic ring 8 is applied to the guard cover 31 through the other end of the elastic ring 8. The guard cover 31 rotates with the shaft 5 as the center until the guard cover 31 is fitted to the outside of the shell 21. At this time, the guard cover 31 completely covers the through hole 22 at the end of the shell 21, which protects the numerical display screen in the through hole 22.

[0055] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An integrated stamping-formed smart meter housing, characterized in that: It comprises an integrally formed rear cover (1) and a front cover (2), wherein the front cover (2) is symmetrically provided with a locker connected to the rear cover (1), and the rear cover (1) is correspondingly provided with a lock box (9) engaged with the locker; The rear cover (1) is also provided with a positioning column (7) and an elastic ring (8) for fixing the circuit board. The positioning column (7) and the elastic ring (8) are symmetrically arranged in the rear cover (1), and the elastic ring (8) is located above the positioning column (7). The front cover (2) comprises a shell (21) fitted on the end of the rear cover (1), and the locking device is located at positions on both sides of the inside of the shell (21) corresponding to the locking box (9), wherein the locking device comprises a positioning shaft (27) fixedly connected to the shell (21), and a locking claw (28) is movably connected to the positioning shaft (27), and the end of the locking claw (28) is clamped in the locking box (9).

2. The integrated stamping-molded smart meter housing according to claim 1, characterized in that: The locking box (9) comprises a box body (91), a locking cavity (92) is provided on the inner side of the box body (91), a self-locking spring (93) is fixedly connected to the inner side of the locking cavity (92), and the bottom of the self-locking spring (93) is inclined, and an opening connected to the outer side is provided at the end of the locking cavity (92).

3. The integrated stamping-molded smart meter housing according to claim 2, characterized in that: The end of the locking claw (28) passes through the opening at the end of the locking cavity (92) and is clamped in the locking cavity (92). The self-locking spring (93) is located above the locking claw (28), and the bottom of the self-locking spring (93) is in contact with the locking claw (28). The other end of the locking claw (28) is provided with an extension rod, and the side of the housing (21) is provided with an arc hole (26) that slidably cooperates with the extension rod, and the extension rod passes through the arc hole (26).

4. The integrated stamping-molded smart meter housing according to claim 1, characterized in that: The end of the housing (21) is provided with a connecting protrusion (24) corresponding to the positioning column (7), and the connecting protrusion (24) and the positioning column (7) are respectively provided with positioning bolt holes corresponding thereto. The housing (21) is also provided with a through hole (22) and an indicator light hole (23), wherein a reinforcing rib plate (25) is provided in a rectangular array at one end of the through hole (22) on the inner side of the housing (21).

5. The integrated stamping-molded smart meter housing according to claim 4, characterized in that: Ear plates (4) integrally arranged with the housing (21) are symmetrically arranged on both sides above the through hole (22), and a flip protective cover (3) is movably connected between the ear plates (4), and the flip protective cover (3) is located on the side of the through hole (22).

6. The integrated stamping-molded smart meter housing according to claim 1, characterized in that: The flip cover (3) comprises a guard plate cover (31), the end of the guard plate cover (31) is integrally provided with a shaft sleeve (34), a shaft rod (5) is inserted into the shaft sleeve (34), both ends of the shaft rod (5) are respectively sleeved with torsion springs (6), and the end of the shaft rod (5) passes through the torsion spring (6) and is movably connected to the ear plate (4).

7. The integrated stamping-molded smart meter housing according to claim 6, characterized in that: One end of the torsion spring (6) is clamped on the side of the housing (21), and the other end of the torsion spring (6) is bent and clamped on the end of the guard cover (31), and the torsion spring (6) is located between the ear plate (4) and the shaft sleeve (34).

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