Electric meter box with overload protection function

Abstract

The utility model discloses an electric meter box with an overload protection function, which relates to the technical field of electric meter boxes and comprises a protective shell, mounting seats are fixedly mounted on two sides of the protective shell, a protective cover plate is attached to the front side of the protective shell in a sliding manner, and closed positioning mechanisms are mounted at the bottom of the protective cover plate and the bottom of the protective shell. According to the electric meter box with the overload protection function, the protection cover plate can slide in the limiting sliding grooves through the sliding blocks to achieve sliding opening and closing of the front side of the protection shell, the phenomenon that the protection cover plate cannot be rotationally opened when the protection cover plate is blocked in a narrow space can be avoided, and convenience of internal maintenance is improved; and the closing positioning mechanism can realize positioning after the protection cover plate is closed through clamping, the use effect of the electric meter box with the overload protection function is improved, active short circuit can be realized through arrangement of an overload protection switch when current is overloaded, and potential safety hazards caused by overload are avoided.

Description

Technical Field

[0001] This utility model relates to the field of meter box technology, specifically to a meter box with overload protection function. Background Technology

[0002] Meter boxes are devices used to store electricity meters. They can effectively protect the electricity meters stored inside and improve the safety of electricity meter use. However, existing meter boxes still have certain defects in use.

[0003] As proposed in application number CN202220001047.X, an electric meter box with overload protection function includes a box body, a front door, and a bottom protector. The front door is connected to the front side of the box body by a hinge. The bottom protector is fixed to the bottom surface of the box body. The box body is equipped with a power distribution mounting bracket, a protector fixing slot, and a lock. Multiple sets of power distribution mounting brackets are fixed to the inner rear side wall of the box body at equal intervals. The protector fixing slot is located on the inner bottom side of the box body, and the bottom protector is located in the protector fixing slot. The lock is located on the side wall of the box body. The front door is equipped with a lock cylinder and a transparent observation window. Fixed to the side of the front door, the transparent observation window is provided in several sets, and the sets of transparent observation windows are arranged on the front door. The lock cylinder is connected to the lock head. The top side of the protector fixing groove is provided with protector fixing holes. In actual use, the meter box with overload protection function opens the front door by rotating. When the meter box is installed in a space with limited space, the front door is easily blocked and cannot be fully opened, which reduces the convenience of internal maintenance. At the same time, the electrical components inside the meter box generate a lot of heat during use, and the meter box with overload protection function is not conducive to the rapid dissipation of internal heat, which reduces the heat dissipation effect.

[0004] Therefore, we propose an electric meter box with overload protection function to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide an electric meter box with overload protection function to solve the problems mentioned in the background art, which are that when installed in a narrow space, the front door may not be able to be opened normally, reducing the convenience of internal maintenance and the heat dissipation effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric meter box with overload protection function, comprising a protective shell, wherein mounting bases are fixedly installed on both sides of the protective shell.

[0007] A protective cover plate is slidably attached to the front side of the protective shell;

[0008] A closing positioning mechanism is installed at the bottom of the protective cover and the bottom of the protective shell;

[0009] An active heat dissipation mechanism is installed on the left side of the protective shell;

[0010] The protective casing houses the meter body, control switch, and overload protection switch.

[0011] Preferably, the protective shell is fixedly installed with limiting grooves on both sides, and a slider is slidably installed inside the limiting groove. The front end of the slider is fixedly connected to the protective shell, and the protective cover plate forms a sliding opening and closing mechanism with the protective shell through the slider and the limiting groove.

[0012] The above-mentioned structural design allows the protective cover to be slidably opened on the front side of the protective shell by means of the sliding connection between the limiting groove and the slider. This facilitates the normal opening of the protective cover when there is insufficient space on the front side of the protective shell, and improves the convenience of internal maintenance.

[0013] Preferably, the closing positioning mechanism includes positioning seats symmetrically embedded in the bottom of the protective cover plate, a locking rod slidingly passing through the interior of the positioning seat, a pull plate fixedly installed at the front end of the locking rod, a return spring sleeved on the outer ring of the locking rod between the pull plate and the positioning seat, and locking seats symmetrically installed on the bottom inner side of the protective shell.

[0014] Preferably, the locking rod and the pull plate form a telescopic sliding structure with the positioning seat through a return spring, and the locking rod is movably locked with the locking seat.

[0015] The above-mentioned structural design facilitates the positioning of the sliding protective cover by the engagement of the closing positioning mechanism, thereby enabling the protective cover to stably close to the front of the protective shell. At the same time, controlling the engagement and disengagement of the closing positioning mechanism allows for convenient sliding opening of the protective cover, improving the ease of opening and closing the protective cover.

[0016] Preferably, the active heat dissipation mechanism includes a limiting frame symmetrically embedded on the left side of the protective shell, a dust cover threaded onto the right end of the limiting frame, a heat dissipation fan blade assembly inside the limiting frame, a support frame fixedly installed on the left end of the limiting frame, a drive motor connected to the left end of the upper heat dissipation fan blade assembly, the drive motor being fixedly connected to the upper support frame, and the left end of the lower heat dissipation fan blade assembly being rotatably connected to the lower support frame.

[0017] Preferably, the active cooling mechanism further includes a pulley fixedly installed at the left end of the cooling fan blade assembly at both the upper and lower ends, and a transmission belt is connected between the pulleys at both the upper and lower ends.

[0018] The above-mentioned structural design facilitates the rapid dissipation of heat from the inside of the protective casing through an active heat dissipation mechanism. This helps to prevent excessive heat from affecting the normal operation of the meter body, control switch, and overload protection switch. The overload protection switch can promptly disconnect the circuit when there is a current overload, thus improving the heat dissipation and overload protection effect of the meter box with overload protection function.

[0019] Compared with the prior art, the beneficial effects of this utility model are: the meter box with overload protection function;

[0020] 1. The protective cover can slide open and close the front side of the protective shell by sliding the slider inside the limiting groove. This can avoid the phenomenon that the protective cover cannot be rotated and opened when it is blocked in a narrow space, and improve the convenience of internal maintenance. The closing positioning mechanism can use the locking to realize the positioning of the protective cover after it is closed, which improves the use effect of the meter box with overload protection function.

[0021] 2. The active heat dissipation mechanism can quickly dissipate heat from inside the protective casing, thereby preventing excessive heat from affecting the normal operation of the internal meter body, control switch, and overload protection switch. The overload protection switch can actively disconnect the circuit when the current is overloaded, avoiding safety hazards caused by overload, and improving the heat dissipation effect and safety of the meter box with overload protection function. Attached Figure Description

[0022] Figure 1 This is a side view of the closed structure of this utility model;

[0023] Figure 2 This is a side view of the structure of the present invention in the open state;

[0024] Figure 3 This is a side sectional view of the closed positioning mechanism of this utility model;

[0025] Figure 4 This is a schematic diagram of the connection structure between the protective shell and the active heat dissipation mechanism of this utility model;

[0026] Figure 5 This is a side sectional view of the active heat dissipation mechanism of this utility model.

[0027] In the diagram: 1. Protective housing; 2. Mounting base; 3. Protective cover plate; 4. Limiting groove; 5. Slider; 6. Positioning seat; 7. Engaging rod; 8. Pull plate; 9. Return spring; 10. Engaging seat; 11. Limiting frame; 12. Dust cover; 13. Cooling fan blade assembly; 14. Drive motor; 15. Support frame; 16. Pulley; 17. Transmission belt; 18. Meter body; 19. Control switch; 20. Overload protection switch. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-5 This utility model provides a technical solution: an electric meter box with overload protection function, including a protective shell 1, mounting seats 2 fixedly installed on both sides of the protective shell 1, a protective cover plate 3 slidably attached to the front side of the protective shell 1, limiting grooves 4 fixedly installed on both sides of the protective shell 1, a slider 5 slidably installed inside the limiting grooves 4, the front end of the slider 5 fixedly connected to the protective shell 1, the protective cover plate 3 forming a sliding opening and closing mechanism with the protective shell 1 through the slider 5 and the limiting grooves 4, and a closing positioning mechanism installed at the bottom of the protective cover plate 3 and the bottom of the protective shell 1. The closing positioning mechanism includes positioning seats 6 symmetrically embedded in the bottom of the protective cover plate 3. A locking rod 7 slides through the inside of the positioning seat 6. A pull plate 8 is fixedly installed at the front end of the locking rod 7. A return spring 9 is sleeved on the outer ring of the locking rod 7 between the pull plate 8 and the positioning seat 6. A locking seat 10 is symmetrically installed on the bottom inner side of the protective shell 1. The locking rod 7 and the pull plate 8 form a telescopic sliding structure with the positioning seat 6 through the return spring 9. The locking rod 7 and the locking seat 10 are movably locked and connected. The inside of the protective shell 1 is equipped with an electric meter body 18, a control switch 19 and an overload protection switch 20.

[0030] The design of the above structure allows the pulling plate 8 to retract the locking rods 7 at both ends inside the positioning seat 6, releasing the locking rods 7 from the locking seat 10. Pulling the pulling plate 8 downwards then causes the protective cover 3 to slide downwards within the limiting groove 4 in conjunction with the slider 5, facilitating the opening of the protective cover 3. This allows for convenient maintenance of the meter body 18, control switch 19, overload protection switch 20, and wiring inside the protective housing 1. When the protective cover 3 needs to be closed, lifting the pulling plate 8 upwards causes the protective cover 3 to slide upwards within the limiting groove 4 in conjunction with the slider 5 until the protective cover 3 closes the front of the protective housing 1. Then, releasing the pulling force of the pulling plate 8 allows the return spring 9 to pull the locking rods 7 and the pulling plate 8 back to their original positions, causing the locking rods 7 to extend out of the positioning seat 6 and engage with the locking seat 10, thus stably positioning the closed protective cover 3.

[0031] An active heat dissipation mechanism is installed on the left side of the protective shell 1. The active heat dissipation mechanism includes a limiting frame 11 symmetrically embedded on the left side of the protective shell 1. A dust cover 12 is threaded on the right end of the limiting frame 11. A heat dissipation fan blade assembly 13 is arranged inside the limiting frame 11. A support frame 15 is fixedly installed on the left end of the limiting frame 11. A drive motor 14 is connected to the left end of the upper heat dissipation fan blade assembly 13. The drive motor 14 is fixedly connected to the upper support frame 15. The left end of the lower heat dissipation fan blade assembly 13 is rotatably connected to the lower support frame 15. The active heat dissipation mechanism also includes pulleys 16 fixedly installed on the left ends of the upper and lower heat dissipation fan blade assemblies 13. A transmission belt 17 is connected between the upper and lower pulleys 16.

[0032] The above-described structure is designed so that starting the drive motor 14 can drive the upper cooling fan blade assembly 13 to rotate. The upper cooling fan blade assembly 13 then drives the lower cooling fan blade assembly 13 to rotate through the transmission structure consisting of the pulley 16 and the transmission belt 17. The cooling fan blade assembly 13 generates suction when rotating, which draws out the heat inside the protective shell 1 to achieve heat dissipation. The limiting frame 11 provides a flow channel for the heat dissipation of the cooling fan blade assembly 13, while the support frame 15 provides support for both the cooling fan blade assembly 13 and the drive motor 14.

[0033] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electric meter box with overload protection function, comprising a protective shell (1), wherein mounting bases (2) are fixedly installed on both sides of the protective shell (1), characterized in that: The protective cover plate (3) is slidably attached to the front side of the protective shell (1); A closing positioning mechanism is installed at the bottom of the protective cover (3) and the bottom of the protective shell (1); An active heat dissipation mechanism is installed on the left side of the protective shell (1); The protective housing (1) contains an electric meter body (18), a control switch (19), and an overload protection switch (20).

2. The meter box with overload protection function according to claim 1, characterized in that: The protective shell (1) has fixedly installed limiting grooves (4) on both sides. A slider (5) is slidably installed inside the limiting groove (4). The front end of the slider (5) is fixedly connected to the protective shell (1). The protective cover (3) forms a sliding opening and closing mechanism with the protective shell (1) through the slider (5) and the limiting groove (4).

3. The meter box with overload protection function according to claim 1, characterized in that: The closing positioning mechanism includes positioning seats (6) symmetrically embedded in the bottom of the protective cover (3). A locking rod (7) slides through the inside of the positioning seat (6). A pull plate (8) is fixedly installed at the front end of the locking rod (7). A return spring (9) is sleeved on the outer ring of the locking rod (7) between the pull plate (8) and the positioning seat (6). A locking seat (10) is symmetrically installed on the bottom inner side of the protective shell (1).

4. A meter box with overload protection function according to claim 3, characterized in that: The locking rod (7) and the pull plate (8) form a telescopic sliding structure with the positioning seat (6) through the return spring (9), and the locking rod (7) and the locking seat (10) are movably locked together.

5. A meter box with overload protection function according to claim 1, characterized in that: The active heat dissipation mechanism includes a limiting frame (11) symmetrically embedded on the left side of the protective shell (1). A dust cover (12) is threaded onto the right end of the limiting frame (11). A heat dissipation fan blade assembly (13) is provided inside the limiting frame (11). A support frame (15) is fixedly installed on the left end of the limiting frame (11). A drive motor (14) is connected to the left end of the upper heat dissipation fan blade assembly (13). The drive motor (14) is fixedly connected to the upper support frame (15). The left end of the lower heat dissipation fan blade assembly (13) is rotatably connected to the lower support frame (15).

6. A meter box with overload protection function according to claim 5, characterized in that: The active cooling mechanism also includes a pulley (16) fixedly installed at the left end of the cooling fan blade assembly (13) at both the upper and lower ends, and a transmission belt (17) is connected between the pulleys (16) at both the upper and lower ends.

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