Electric meter box with electricity stealing prevention function

Abstract

The utility model discloses an electric meter box with an electricity stealing prevention function, which belongs to the field of electric meter boxes, and comprises a box body, the inside of the box body is hollow, the front side of the box body is open, a cabinet door is rotatably mounted on the front side of the box body through a hinge, an anti-theft lock is mounted on the surface of the cabinet door, and a transmission shaft is coaxially mounted above the rotary hinge of the cabinet door. The transmission shaft penetrates through the upper surface of the box body, a fan-shaped tooth is fixed to the top of the transmission shaft, a transmission gear is rotationally installed on the upper surface of the box body, the transmission gear is meshed with the fan-shaped tooth, a rotating shaft is installed on the upper surface of the transmission gear, and an elastic vertical rod is vertically installed in the center of the upper surface of the box body; when the cabinet door is opened, the rotation of the cabinet door can drive the fan-shaped teeth at the top to rotate, and then the eccentric bolt and the connecting rod are matched to drive the elastic vertical rod to shake, so that the bell at the top makes a sound to warn an electricity stealing person.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter boxes, and more specifically, to an electricity meter box with anti-theft electricity function. Background Technology

[0002] An electricity meter box is a box used to house electricity meters and falls under the category of metering boxes. An electricity meter box is the collection of metering instruments and auxiliary equipment necessary for measuring electrical energy. In some high-rise residential buildings, to facilitate staff in calculating the electricity consumption of each household (i.e., meter reading and verification), multiple electricity meters are installed in the same meter box.

[0003] Most electrical meter boxes on the market are equipped with mechanical locks, partly for security and partly for theft prevention. However, driven by profit, some criminals still steal electricity by prying open the cabinet doors and pulling the wires, causing losses to the country. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide an electric meter box with anti-theft function, which can make a bell shake when the cabinet door is opened to make a sound to warn the electricity thief.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] An electric meter box with anti-theft function includes a box body, the box body being hollow and open at the front. A cabinet door is rotatably mounted on the front of the box body via a hinge. An anti-theft lock is installed on the surface of the cabinet door. A drive shaft is coaxially mounted above the rotating hinge of the cabinet door, the drive shaft passing through the upper surface of the box body. A sector tooth is fixed at the top of the drive shaft. A drive gear is rotatably mounted on the upper surface of the box body, the drive gear meshing with the sector tooth. A rotating shaft is mounted on the upper surface of the drive gear. An elastic upright is vertically mounted at the center of the upper surface of the box body. A bell is suspended at the top of the elastic upright. An eccentric bolt is provided on the upper surface of the rotating shaft. A connecting rod is rotatably mounted on the surface of the eccentric bolt. The end of the connecting rod opposite to the eccentric bolt is mounted on the surface of the elastic upright.

[0009] Furthermore, the rotating shaft is rotatably mounted on the upper surface of the transmission gear, and tooth grooves are evenly formed on the lower surface of the rotating shaft with its axis as the center.

[0010] Furthermore, the transmission gear has a horizontally protruding mounting hole inside, the mounting hole corresponding to the height of the tooth groove, and a wedge block is slidably installed inside the mounting hole, the end of the wedge block being adapted to the internal dimensions of the tooth groove.

[0011] Furthermore, a spring is provided inside the mounting hole, and one end of the spring contacts the end surface of the wedge block that is away from the tooth groove.

[0012] Furthermore, the enclosure has symmetrical ventilation windows on both sides, all cable routing holes are evenly distributed on the lower surface inside the enclosure, and a mounting backplate is provided on the rear side inside the enclosure.

[0013] Furthermore, a waterproof extension plate is inclinedly provided on the front side of the top of the box, and mounting plates are provided on the rear sides of both sides of the box.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of this utility model are as follows: This utility model provides an electric meter box with anti-theft function. When the cabinet door is opened, the rotation of the cabinet door can drive the top fan-shaped tooth to rotate. Then, through the cooperation of the eccentric bolt and the connecting rod, the elastic upright rod is driven to shake, so that the bell on the top makes a sound to warn the electricity thief. When the cabinet door is closed, this electric meter box will not cause the bell to shake, so as to reduce the noise when closing the cabinet door. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the box structure of this utility model;

[0017] Figure 2 For the utility model Figure 1 A magnified structural diagram of area A;

[0018] Figure 3 This is a schematic diagram of the installation structure of the transmission gear and rotating shaft of this utility model.

[0019] The following are the labels in the diagram: 1. Cabinet body; 11. Ventilation window; 12. Mounting plate; 13. Cable routing hole; 14. Mounting back panel; 15. Cabinet door; 16. Anti-theft lock; 17. Waterproof extension plate; 18. Drive shaft; 2. Sector gear; 3. Drive gear; 31. Mounting hole; 32. Wedge block; 33. Spring; 4. Elastic upright; 5. Bell; 6. Connecting rod; 7. Rotating shaft; 71. Eccentric bolt; 72. Gear groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Example:

[0022] Please see Figure 1-Figure 3 As shown, an electric meter box with anti-theft function includes a box body 1. The box body 1 is hollow inside and open at the front. A cabinet door 15 is rotatably installed on the front of the box body 1 via a hinge. An anti-theft lock 16 is installed on the surface of the cabinet door 15 to prevent the cabinet door 15 from being easily opened. A drive shaft 18 is coaxially installed above the rotating hinge of the cabinet door 15 so that the drive shaft 18 can be driven to rotate during the opening and closing of the cabinet door 15. The drive shaft 18 passes through the upper surface of the box body 1. A sector gear 2 is fixed at the top of the drive shaft 18 to increase the rotational torque of the drive shaft 18. A transmission gear 3 is rotatably installed on the upper surface of the box body 1. The transmission gear 3 is a small gear to ensure that the transmission gear 3 can rotate when the cabinet door 15 is opened. The rotation increases the frequency of the shaking of the elastic pole 4. The transmission gear 3 meshes with the sector gear 2. A rotating shaft 7 is installed on the upper surface of the transmission gear 3. The elastic pole 4 is vertically installed at the center of the upper surface of the housing 1. A bell 5 is suspended from the top of the elastic pole 4. An eccentric bolt 71 is provided on the upper surface of the rotating shaft 7. When the rotating shaft 7 rotates, it can push the connecting rod 6 to move back and forth through the eccentric bolt 71. The connecting rod 6 is rotatably installed on the surface of the eccentric bolt 71. The end of the connecting rod 6 away from the eccentric bolt 71 is installed on the surface of the elastic pole 4 to drive the elastic pole 4 to shake, which in turn causes the bell 5 suspended at the top to shake and make a sound, alerting electricity thieves. At the same time, the elastic pole 4 is placed on top of the housing 1 and will not be easily seen by electricity thieves.

[0023] refer to Figure 2 and Figure 3 As shown, the rotating shaft 7 is rotatably mounted on the upper surface of the transmission gear 3. Gear grooves 72 are evenly distributed below the surface of the rotating shaft 7 with its axis as the center. A mounting hole 31 is horizontally formed inside the transmission gear 3, with the mounting hole 31 corresponding to the height of the gear groove 72. A wedge block 32 is slidably mounted inside the mounting hole 31. The end of the wedge block 32 is adapted to the internal dimensions of the gear groove 72. An inclined surface is provided at the end of the wedge block 32 so that when the cabinet door 15 is opened, the wedge block 32 can drive the rotating shaft 7 to rotate through its engagement with the gear groove 72. Conversely, when the cabinet door 15 is closed, the inclined surface of the wedge block 32 will be squeezed and compressed into the mounting hole 31, thereby driving the rotating shaft 7 to rotate.

[0024] The mounting hole 31 is equipped with a spring 33. One end of the spring 33 is in contact with the end surface of the wedge block 32 away from the tooth groove 72. The elastic force of the spring 33 ensures that the wedge block 32 always has a force toward the axis of rotation 7.

[0025] refer to Figure 1As shown, ventilation windows 11 are symmetrically opened on both sides of the enclosure 1 to improve the heat dissipation effect of the enclosure 1. All cable routing holes 13 are evenly opened on the lower surface of the interior of the enclosure 1 to organize the internal wires. A mounting back plate 14 is provided on the rear side of the interior of the enclosure 1. The mounting back plate 14 can be adjusted by bolts to control its position for easy installation of electrical equipment.

[0026] The cabinet 1 has a waterproof extension plate 17 installed at an angle on the front top. Conversely, when placed outdoors, rainwater will enter through the gap between the cabinet 1 and the cabinet door 15 to protect the internal electrical appliances. The cabinet 1 has mounting plates 12 installed on the rear sides of both sides.

[0027] Working principle: Cabinet door 15 can rotate around its hinge to open and close. When closed, it is kept stable by the anti-theft lock 16. Due to the presence of spring 33, wedge block 32 always has a force in the direction of rotation axis 7, which causes the inclined end of wedge block 32 to be placed inside the tooth groove 72. When cabinet door 15 is opened, the drive shaft 18 drives the sector tooth 2 to rotate, which in turn drives the drive gear 3 to rotate. The direction of the wedge block 32 and tooth groove 72 must ensure that the rotation axis 7 can be driven to rotate when cabinet door 15 is opened, and conversely, the rotation axis 7 will not be driven to rotate when cabinet door 15 is closed. When the rotation axis 7 rotates, the elastic upright 4 is shaken by the cooperation of eccentric bolt 71 and connecting rod 6, so that the bell 5 rings to warn the electricity thief.

[0028] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. An electric meter box with anti-theft function, comprising a box body (1), characterized in that: The interior of the box (1) is hollow and open at the front. A cabinet door (15) is rotatably mounted on the front of the box (1) via a hinge. An anti-theft lock (16) is mounted on the surface of the cabinet door (15). A drive shaft (18) is coaxially mounted above the rotating hinge of the cabinet door (15). The drive shaft (18) passes through the upper surface of the box (1). A fan-shaped tooth (2) is fixed at the top of the drive shaft (18). A transmission gear (3) is rotatably mounted on the upper surface of the box (1). The wheel (3) meshes with the sector tooth (2). A rotating shaft (7) is installed on the upper surface of the transmission gear (3). An elastic rod (4) is vertically installed at the center of the upper surface of the housing (1). A bell (5) is suspended from the top of the elastic rod (4). An eccentric bolt (71) is provided on the upper surface of the rotating shaft (7). A connecting rod (6) is rotatably installed on the surface of the eccentric bolt (71). One end of the connecting rod (6) away from the eccentric bolt (71) is installed on the surface of the elastic rod (4).

2. The meter box with anti-theft function according to claim 1, characterized in that: The rotating shaft (7) is rotatably mounted on the upper surface of the transmission gear (3), and tooth grooves (72) are evenly formed below the surface of the rotating shaft (7) with its axis as the center.

3. A meter box with anti-theft function according to claim 2, characterized in that: The transmission gear (3) has a horizontally opened mounting hole (31) inside. The mounting hole (31) corresponds to the height of the tooth groove (72). A wedge block (32) is slidably installed inside the mounting hole (31). The end of the wedge block (32) is adapted to the internal size of the tooth groove (72).

4. A meter box with anti-theft function according to claim 3, characterized in that: A spring (33) is provided inside the mounting hole (31), and one end of the spring (33) is in contact with the end surface of the wedge block (32) away from the tooth groove (72).

5. A meter box with anti-theft function according to claim 1, characterized in that: The box (1) has symmetrical ventilation windows (11) on both sides, and all cable routing holes (13) are evenly opened on the lower surface inside the box (1). The box (1) has a mounting back plate (14) on the rear side inside the box (1).

6. A meter box with anti-theft function according to claim 5, characterized in that: A waterproof extension plate (17) is inclinedly provided on the front top of the box (1), and mounting plates (12) are provided on the rear sides of both sides of the box (1).

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