Electric meter box with adjustable size

Abstract

The utility model relates to a size-adjustable electric meter box, which is characterized in that a first frame and a second frame respectively move relative to a support frame by moving the first frame and the second frame, and the first frame and the second frame can be respectively fixed relative to the position of the support frame after the first frame and the second frame move for a certain distance. On the basis of the original internal space, the internal space of the electric meter box is enlarged after the positions of the first frame and the second frame are changed, so that a worker can conveniently repair or maintain electronic components in the electric meter box; when the first frame and the second frame move relative to the supporting frame, the first door plate and the second door plate are driven to deform, so that the shapes of the first door plate and the second door plate better conform to the shape-changed electric meter box.

Description

Technical Field

[0001] The present application relates to the technical field of electric meter boxes, and in particular to an electric meter box with adjustable size. Background Art

[0002] Electricity meter is the abbreviation of energy meter, which is an instrument used to measure electrical energy. It is also called watt-hour meter, fire meter, energy meter, kilowatt-hour meter, and refers to an instrument for measuring various electrical quantities. The input end of the energy meter is connected to the power grid, either near or far. When the power grid fails or is struck by lightning, surge voltage or overvoltage is easily generated in the transmission line. Overvoltage affects the linear stability of the meter's measurement error and may even cause the meter to malfunction. Therefore, overvoltage protection of the energy meter is particularly important. Therefore, people usually place the energy meter in a meter box for use.

[0003] At present, most electric meter boxes with fixed shapes and sizes are used on the market or in actual use. The number of electric meters installed inside such electric meter boxes is fixed when in use. In addition, the internal space of the electric meter boxes is relatively crowded during use, which easily generates a large amount of heat and poses certain safety hazards. In addition, the crowded space inside the electric meter boxes makes repair or maintenance more cumbersome. Utility Model Content

[0004] Based on this, it is necessary to provide an electric meter box with adjustable size to address the problems that the internal space of the traditional electric meter box is relatively fixed, has certain safety hazards, and is inconvenient to maintain its interior.

[0005] The present application provides a size-adjustable electric meter box, comprising:

[0006] The size-adjustable electric meter box includes:

[0007] The support frame has an installation slot formed therein for installing the electric meter;

[0008] A first frame is provided on one side of the support frame, and the first frame is slidably connected to the support frame;

[0009] A second frame is provided on the other side of the support frame, and the second frame is slidably connected to the support frame;

[0010] a first door panel, disposed on one side of the opening direction of the mounting slot, one end of the first door panel being rotatably connected to the first frame, the other end of the first door panel being rotatably connected to the second frame, and a middle portion of the first door panel being rotatably connected to the support frame;

[0011] a second door panel, disposed on one side of the opening direction of the mounting slot, one end of the second door panel being rotatably connected to the first frame, the other end of the second door panel being rotatably connected to the second frame, and a middle portion of the second door panel being rotatably connected to the support frame;

[0012] The first door panel and the second door panel are rotatably matched to cover the opening of the installation slot.

[0013] The present application relates to an electric meter box with adjustable size, which is achieved by moving a first frame and a second frame respectively so that the first frame and the second frame can move relative to a support frame respectively, and after the first frame and the second frame move a certain distance, the first frame and the second frame will be fixed in position relative to the support frame respectively, thereby increasing the space inside the electric meter box relative to the original internal space after the positions of the first frame and the second frame are changed, making it easier for staff to repair or maintain electronic components inside the electric meter box; when the first frame and the second frame move relative to the support frame respectively, they will also drive the first door panel and the second door panel to deform respectively, so that the shapes of the first door panel and the second door panel are more in line with the electric meter box after the shape change. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a size-adjustable electricity meter box provided in one embodiment of the present application.

[0015] Figure 2 A schematic diagram of the positional relationship between the first cover plate and the second cover plate in a size-adjustable electricity meter box provided in one embodiment of the present application.

[0016] Figure 3 A schematic diagram of the positional relationship between the second locking bolt and the fourth locking bolt in a size-adjustable electricity meter box provided in one embodiment of the present application.

[0017] Figure 4 A schematic diagram of the positional relationship between a first driven rod and a second driven rod in a size-adjustable electricity meter box provided in one embodiment of the present application.

[0018] Figure 5 A schematic diagram of the positional relationship between the third driven rod and the fourth driven rod in a size-adjustable electricity meter box provided in one embodiment of the present application.

[0019] Figure 6 A schematic diagram of the positional relationship between the first locking hole and the third locking hole in a size-adjustable electricity meter box provided in one embodiment of the present application.

[0020] Figure 7 A schematic diagram of the positional relationship between the second locking hole and the fourth locking hole in a size-adjustable electricity meter box provided in one embodiment of the present application.

[0021] Figure 8A schematic diagram showing the first cover plate structure in a size-adjustable electricity meter box provided in one embodiment of the present application.

[0022] Figure 9 A schematic diagram showing the second cover plate structure in a size-adjustable electricity meter box provided in one embodiment of the present application.

[0023] Figure 10 Schematic diagram of the positional relationship between the first support column and the first matching plate in the size-adjustable electric meter box provided in one embodiment of the present application

[0024] Reference numerals:

[0025] 11. Support frame; 111. Mounting slot; 12. First frame; 121. First cover plate;

[0026] 122, first locking bolt; 123, second locking bolt; 13, second frame; 131, second cover plate;

[0027] 132, third locking bolt; 133, fourth locking bolt; 14, first door panel; 141, first support plate;

[0028] 142, first movable plate; 142a, first support column; 142b, first matching plate;

[0029] 143, second movable plate; 15, second door plate; 151, second support plate; 152, third movable plate;

[0030] 153, fourth movable plate; 16, first locking hole; 17, second locking hole; 18, third locking hole;

[0031] 19. Fourth locking hole; 20. First follower rod; 21. Second follower rod; 22. Third follower rod;

[0032] 23. Fourth driven rod; 24. Connecting plate. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0034] like Figure 1 and Figure 6 As shown, in one embodiment of the present application, the size-adjustable electricity meter box includes a support frame 11 , a first frame 12 , a second frame 13 , a first door panel 14 and a second door panel 15 .

[0035] A mounting slot 111 is provided inside the support frame 11. The interior of the mounting slot 111 is used for mounting an electric meter.

[0036] The first frame 12 is disposed on one side of the support frame 11. The first frame 12 is slidably connected to the support frame 11.

[0037] The second frame 13 is disposed on the other side of the support frame 11. The second frame 13 is slidably connected to the support frame 11.

[0038] The first door panel 14 is disposed on one side of the opening of the mounting slot 111. One end of the first door panel 14 is rotatably connected to the first frame 12. The other end of the first door panel 14 is rotatably connected to the second frame 13. The middle portion of the first door panel 14 is rotatably connected to the support frame 11.

[0039] The second door panel 15 is disposed on one side of the opening of the mounting slot 111. One end of the second door panel 15 is rotatably connected to the first frame 12. The other end of the second door panel 15 is rotatably connected to the second frame 13. The middle portion of the second door panel 15 is rotatably connected to the support frame 11.

[0040] The first door panel 14 and the second door panel 15 are rotatably matched to cover the opening of the installation slot 111 .

[0041] Specifically, the mounting slot 111 is used to install multiple electricity meters, and the top and bottom of the mounting slot 111 are both set through; the first frame 12 covers the top of the mounting slot 111, and the second frame 13 covers the bottom of the mounting slot 111; the first door panel 14 and the second door panel 15 rotate to cooperate so that the ends of the first door panel 14 and the second door panel 15 that are close to each other abut each other, thereby covering one side of the opening direction of the mounting slot 111.

[0042] In this embodiment, the first frame 12 and the second frame 13 are moved respectively so that the first frame 12 and the second frame 13 are moved relative to the support frame 11 respectively, and after the first frame 12 and the second frame 13 move a certain distance, the first frame 12 and the second frame 13 will be fixed in position relative to the support frame 11 respectively, and then the space inside the meter box becomes larger after the positions of the first frame 12 and the second frame 13 are changed relative to the original internal space, which is convenient for the staff to repair or maintain the electronic components inside the meter box; when the first frame 12 and the second frame 13 are moved relative to the support frame 11 respectively, they will also drive the first door panel 14 and the second door panel 15 to deform respectively, so that the shapes of the first door panel 14 and the second door panel 15 are more in line with the meter box after the shape change.

[0043] like Figure 1As shown, in one embodiment of the present application, the structure of the first frame 12 is the same as that of the second frame 13. The first frame 12 is arranged on the top of the second frame 13. The support frame 11 is arranged between the first frame 12 and the second frame 13.

[0044] Specifically, the first frame 12 and the second frame 13 are both slidingly covered on the support frame 11, and the first frame 12 covers the top of the support frame 11, and each outer wall of the support frame 11 is at least partially fitted with the first frame 12, and the second frame 13 covers the bottom of the support frame 11, and each outer wall of the support frame 11 is at least partially fitted with the second frame 13.

[0045] In this embodiment, the relative positions of the first frame 12 , the second frame 13 and the support frame 11 are adjusted respectively so that the bottom of the meter box or the space at the bottom is improved to a certain extent.

[0046] like Figure 2 and Figure 3 As shown, in one embodiment of the present application, the first frame 12 includes a first cover plate 121 , a first locking bolt 122 and a second locking bolt 123 .

[0047] The first cover plate 121 is disposed on the top of the support frame 11. The first cover plate 121 is slidably connected to the support frame 11.

[0048] The first locking bolt 122 is disposed on one side of the support frame 11. The first locking bolt 122 passes through the first cover plate 121. The first locking bolt 122 is threadedly connected to the support frame 11.

[0049] The second locking bolt 123 is disposed on the other side of the support frame 11. The second locking bolt 123 passes through the first cover plate 121. The second locking bolt 123 is threadedly connected to the support frame 11.

[0050] Specifically, the first locking bolt 122 and the second locking bolt 123 can also be threadedly connected to the first cover plate 121. The first locking bolt 122 is threadedly connected to the first cover plate 121 after passing through the support frame 11, and the second locking bolt 123 is threadedly connected to the first cover plate 121 after passing through the support frame 11.

[0051] In this embodiment, the first locking bolt 122 is threadedly connected to the first cover plate 121 after passing through the support frame 11, and the second locking bolt 123 is threadedly connected to the first cover plate 121 after passing through the support frame 11, thereby fixing the positions of the two ends of the first cover plate 121 relative to the support frame 11 respectively, and further fixing the position of the first cover plate 121 relative to the support frame 11.

[0052] like Figure 2 、 Figure 3 and Figure 9 As shown, in one embodiment of the present application, the second frame 13 includes a second cover plate 131 , a third locking bolt 132 and a fourth locking bolt 133 .

[0053] The second cover plate 131 is disposed at the bottom of the support frame 11. The second cover plate 131 is slidably connected to the support frame 11.

[0054] The third locking bolt 132 is disposed on one side of the support frame 11. The third locking bolt 132 passes through the first cover plate 121. The third locking bolt 132 is threadedly connected to the support frame 11.

[0055] The fourth locking bolt 133 is disposed on the other side of the support frame 11. The fourth locking bolt 133 passes through the first cover plate 121. The fourth locking bolt 133 is threadedly connected to the support frame 11.

[0056] Specifically, the third locking bolt 132 and the fourth locking bolt 133 can also be threadedly connected to the second cover plate 131. The third locking bolt 132 is threadedly connected to the second cover plate 131 after passing through the support frame 11, and the fourth locking bolt 133 is threadedly connected to the second cover plate 131 after passing through the support frame 11.

[0057] In this embodiment, the third locking bolt 132 is threadedly connected to the second cover plate 131 after passing through the support frame 11, and the fourth locking bolt 133 is threadedly connected to the second cover plate 131 after passing through the support frame 11, thereby fixing the positions of the two ends of the second cover plate 131 relative to the support frame 11 respectively, and further fixing the position of the second cover plate 131 relative to the support frame 11.

[0058] like Figure 2 As shown, in one embodiment of the present application, the first door panel 14 includes a first supporting panel 141 , a first movable panel 142 and a second movable panel 143 .

[0059] The middle portion of the first support plate 141 is rotatably connected to the middle portion of the support frame 11;

[0060] The first movable plate 142 is slidably disposed on the first supporting plate 141. The top of the first movable plate 142 is rotatably connected to the first cover plate 121.

[0061] The second movable plate 143 is slidably disposed on the first supporting plate 141. The second movable plate 143 is disposed at the bottom of the first movable plate 142. The bottom of the second movable plate 143 is rotatably connected to the second cover plate 131.

[0062] Specifically, a first groove is provided at the top of the first support plate 141, and the first movable plate 142 is slidably connected to the first groove; a second groove is provided at the bottom of the first support plate 141, and the second movable plate 143 is slidably connected to the second groove; a first support ring is fixed on the support frame 11, and the first support ring is arranged near the middle of the first support plate 141, and the first support plate 141 passes through the first support ring.

[0063] In this embodiment, the sliding direction of the first movable plate 142 on the first support plate 141 is limited by the first groove, and the sliding direction of the second movable plate 143 on the first support plate 141 is limited by the second groove, and the first movable plate 142 can slide independently relative to the second movable plate 143. The first movable plate 142 slides relative to the first support plate 141 following the movement of the first cover plate 121, and the second movable plate 143 slides relative to the first support plate 141 following the movement of the second cover plate 131.

[0064] like Figure 2 As shown, in one embodiment of the present application, the second door panel 15 includes a second supporting panel 151 , a third movable panel 152 and a fourth movable panel 153 .

[0065] The middle portion of the second support plate 151 is rotatably connected to the middle portion of the support frame 11 .

[0066] The third movable plate 152 is slidably disposed on the second supporting plate 151. The top of the third movable plate 152 is rotatably connected to the first cover plate 121.

[0067] The fourth movable plate 153 is slidably disposed on the first support plate 141. The fourth movable plate 153 is disposed at the bottom of the third movable plate 152. The bottom of the third movable plate 152 is rotatably connected to the second cover plate 131.

[0068] Specifically, a third groove is provided at the top of the second support plate 151, and the third movable plate 152 is slidably connected to the third groove; a fourth groove is provided at the bottom of the second support plate 151, and the fourth movable plate 153 is slidably connected to the fourth groove; a second support ring is fixed on the support frame 11, and the second support ring is arranged near the middle of the second support plate 151, and the second support plate 151 passes through the second support ring.

[0069] In this embodiment, the sliding direction of the third movable plate 152 on the second support plate 151 is limited by the third groove, and the sliding direction of the fourth movable plate 153 on the second support plate 151 is limited by the fourth groove, and the third movable plate 152 can slide independently relative to the fourth movable plate 153. The third movable plate 152 slides relative to the second support plate 151 following the movement of the first cover plate 121, and the fourth movable plate 153 slides relative to the second support plate 151 following the movement of the second cover plate 131.

[0070] like Figure 6 and Figure 7 As shown, in one embodiment of the present application, the support frame 11 is provided with a plurality of first locking holes 16. The plurality of first locking holes 16 are all disposed on a side adjacent to the first locking bolt 122. The plurality of first locking holes 16 are equidistantly spaced along the plumb line. The first locking bolt 122 is inserted into at least one of the first locking holes 16.

[0071] The support frame 11 is provided with a plurality of second locking holes 17. The plurality of second locking holes 17 are all located on a side close to the second locking bolt 123. The plurality of second locking holes 17 are evenly spaced along the plumb line. The second locking bolt 123 is inserted into at least one of the second locking holes 17.

[0072] The support frame 11 is provided with a plurality of third locking holes 18. The plurality of third locking holes 18 are all located on a side close to the third locking bolt 132. The plurality of third locking holes 18 are evenly spaced along the plumb line. The third locking bolt 132 is inserted into at least one of the third locking holes 18.

[0073] The support frame 11 is provided with a plurality of fourth locking holes 19. The plurality of fourth locking holes 19 are all located on a side close to the fourth locking bolt 133. The plurality of fourth locking holes 19 are evenly spaced along the plumb line. The fourth locking bolt 133 is inserted into at least one of the fourth locking holes 19.

[0074] Specifically, multiple first locking holes 16 and multiple third locking holes 18 are all arranged on one side of the support frame 11, and each first locking hole 16 is arranged at the top of any third locking hole 18, and multiple second locking holes 17 and multiple fourth locking holes 19 are all arranged on the other side of the support frame 11, and each second locking hole 17 is arranged at the top of any fourth locking hole 19.

[0075] In this embodiment, the first locking bolt 122 and the second locking bolt 123 are synchronously adjusted so that the first locking bolt 122 and the second locking bolt 123 are respectively inserted into a first locking hole 16 and a second locking hole 17 to fix the position of the first cover plate 121; the third locking bolt 132 and the fourth locking bolt 133 are synchronously adjusted so that the third locking bolt 132 and the fourth locking bolt 133 are respectively inserted into a third locking hole 18 and a fourth locking hole 19 to fix the position of the second cover plate 131.

[0076] like Figure 4 and Figure 5 As shown, in one embodiment of the present application, the size-adjustable electricity meter box further includes a first driven rod 20 , a second driven rod 21 , a third driven rod 22 and a fourth driven rod 23 .

[0077] The first driven rod 20 is configured to be arc-shaped and is slidably disposed on the first cover plate 121. One end of the first driven rod 20 is fixedly connected to the first movable plate 142.

[0078] The second driven rod 21 is configured to be arc-shaped and is slidably disposed on the first cover plate 121. One end of the first driven rod 20 is fixedly connected to the third movable plate 152.

[0079] The third driven rod 22 is configured to be arc-shaped and is slidably disposed on the second cover plate 131 . One end of the third driven rod 22 is fixedly connected to the second movable plate 143 .

[0080] The fourth driven rod 23 is configured to be arc-shaped and is slidably disposed on the second cover plate 131. One end of the fourth driven rod 23 is fixedly connected to the fourth movable plate 153.

[0081] Specifically, the center of the arc shape of the first driven rod 20 is located on the axis formed by the rotation of the first movable plate 142; the center of the arc shape of the second driven rod 21 is located on the axis formed by the rotation of the third movable plate 152; the center of the arc shape of the third driven rod 22 is located on the axis formed by the rotation of the second movable plate 143; the center of the arc shape of the fourth driven rod 23 is located on the axis formed by the rotation of the fourth movable plate 153.

[0082] like Figure 2 、 Figure 8 and Figure 10 As shown, in one embodiment of the present application, the structure of the first movable plate 142 , the structure of the second movable plate 143 , the structure of the third movable plate 152 , and the structure of the fourth movable plate 153 are all the same.

[0083] The structure of the first movable plate 142 includes a first supporting column 142 a and a first matching plate 142 b .

[0084] The first support column 142a is cylindrical in shape. One end of the first support column 142a is rotatably connected to the first cover plate 121 . The other end of the first support column 142a is inserted into the first support plate 141 .

[0085] The first matching plate 142b is fixedly connected to the first support column 142a. The first matching plate 142b is inserted into the first cover plate 121. The first matching plate 142b is fixedly connected to the first driven rod 20.

[0086] Specifically, the cross section of the first support column 142a is circular, and the diameter of the circle is greater than the thickness of the first matching plate 142b. The first matching plate 142b is fixedly connected to the outer circumferential surface of the first support column 142a.

[0087] like Figure 6 and Figure 7 As shown, in one embodiment of the present application, the size-adjustable electricity meter box further includes a connecting plate 24 .

[0088] The connecting plate 24 is disposed on a side of the support frame 11 away from the first supporting plate 141. The connecting plate 24 is fixedly connected to the support frame 11. The connecting plate 24 is disposed between the first cover plate 121 and the second cover plate 131.

[0089] In this embodiment, the connecting plate 24 is used to transfer the support frame 11 to other structures or objects and fix the position.

[0090] In one embodiment of the present application, a first limiting plate and a second limiting plate are also fixed on the support frame, the first limiting plate is arranged near the first locking hole, and the second limiting plate is arranged near the second locking hole, one end of the first limiting plate is slidably connected to the first cover plate, the other end of the first limiting plate is slidably connected to the first cover plate, one end of the second limiting plate is slidably connected to the first cover plate, and the other end of the second limiting plate is slidably connected to the first cover plate.

[0091] The various technical features of the above-described embodiments can be combined arbitrarily, and the execution order of the method steps is not restricted. In order to make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0092] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A size-adjustable electric meter box, characterized in that: The size-adjustable electric meter box includes: The support frame has an installation slot formed therein, and the interior of the installation slot is used to install the electric meter; A first frame is provided on one side of the support frame, and the first frame is slidably connected to the support frame; A second frame is provided on the other side of the support frame, and the second frame is slidably connected to the support frame; a first door panel, disposed on one side of the opening direction of the mounting slot, one end of the first door panel being rotatably connected to the first frame, the other end of the first door panel being rotatably connected to the second frame, and a middle portion of the first door panel being rotatably connected to the support frame; a second door panel, disposed on one side of the opening direction of the mounting slot, one end of the second door panel being rotatably connected to the first frame, the other end of the second door panel being rotatably connected to the second frame, and a middle portion of the second door panel being rotatably connected to the support frame; The first door panel and the second door panel are rotatably matched to cover the opening of the installation slot.

2. The size-adjustable electric meter box according to claim 1, characterized in that: The structure of the first frame is the same as that of the second frame. The first frame is arranged on the top of the second frame, and the support frame is arranged between the first frame and the second frame.

3. The size-adjustable electric meter box according to claim 2, characterized in that: The first framework includes: a first cover plate, disposed on the top of the support frame, wherein the first cover plate is slidably connected to the support frame; a first locking bolt, disposed on one side of the support frame, the first locking bolt passing through the first cover plate, and the first locking bolt being threadedly connected to the support frame; The second locking bolt is arranged on the other side of the support frame, the second locking bolt passes through the first cover plate, and the second locking bolt is threadedly connected to the support frame.

4. The size-adjustable electric meter box according to claim 3, characterized in that: The second framework includes: a second cover plate, disposed at the bottom of the support frame, the second cover plate being slidably connected to the support frame; a third locking bolt, disposed on one side of the support frame, the third locking bolt passing through the first cover plate, and the third locking bolt being threadedly connected to the support frame; A fourth locking bolt is provided on the other side of the support frame, the fourth locking bolt passes through the first cover plate, and the fourth locking bolt is threadedly connected to the support frame.

5. The size-adjustable electric meter box according to claim 4, characterized in that: The first door panel comprises: a first support plate, wherein a middle portion of the first support plate is rotatably connected to a middle portion of the support frame; a first movable plate, slidably disposed on the first supporting plate, wherein the top of the first movable plate is rotatably connected to the first cover plate; The second movable plate is slidably arranged on the first supporting plate. The second movable plate is arranged on the bottom of the first movable plate. The bottom of the second movable plate is rotatably connected to the second cover plate.

6. The size-adjustable electric meter box according to claim 5, characterized in that: The second door panel comprises: a second support plate, wherein a middle portion of the second support plate is rotatably connected to a middle portion of the support frame; a third movable plate, slidably disposed on the second supporting plate, wherein the top of the third movable plate is rotatably connected to the first cover plate; The fourth movable plate is slidably arranged on the first supporting plate. The fourth movable plate is arranged on the bottom of the third movable plate. The bottom of the third movable plate is rotatably connected to the second cover plate.

7. The size-adjustable electric meter box according to claim 6, characterized in that: The support frame is provided with a plurality of first locking holes, each of which is arranged on a side close to the first locking bolt, and the plurality of first locking holes are equidistantly arranged along the plumb direction, and the first locking bolt is inserted into at least one of the first locking holes; The support frame is provided with a plurality of second locking holes, each of which is arranged on a side close to the second locking bolt, and the plurality of second locking holes are equidistantly arranged along the plumb direction, and the second locking bolt is inserted into at least one of the second locking holes; The support frame is provided with a plurality of third locking holes, each of which is arranged on a side close to the third locking bolt, and the plurality of third locking holes are equidistantly arranged along the plumb direction, and the third locking bolt is inserted into at least one of the third locking holes; The support frame is provided with a plurality of fourth locking holes, and the plurality of fourth locking holes are all arranged on a side close to the fourth locking bolt. The plurality of fourth locking holes are equidistantly arranged along the plumb direction, and the fourth locking bolt is inserted into at least one of the fourth locking holes.

8. The size-adjustable electric meter box according to claim 7, characterized in that: Also includes: a first driven rod, which is configured as an arc shape and is slidably disposed on the first cover plate, and one end of the first driven rod is fixedly connected to the first movable plate; a second driven rod, which is configured as an arc shape and is slidably disposed on the first cover plate, and one end of the first driven rod is fixedly connected to the third movable plate; a third driven rod, which is configured as an arc shape and is slidably disposed on the second cover plate, with one end of the third driven rod being fixedly connected to the second movable plate; The fourth driven rod is configured to be in an arc shape. The fourth driven rod is slidably disposed on the second cover plate. One end of the fourth driven rod is fixedly connected to the fourth movable plate.

9. The size-adjustable electric meter box according to claim 8, characterized in that: The structure of the first movable plate, the structure of the second movable plate, the structure of the third movable plate and the structure of the fourth movable plate are all the same; The structure of the first movable plate includes: a first support column, which is cylindrical, one end of which is rotatably connected to the first cover plate, and the other end of which is inserted into the first support plate; The first matching plate is fixedly connected to the first supporting column, the first matching plate is inserted into the first cover plate, and the first matching plate is fixedly connected to the first driven rod.

10. The size-adjustable electric meter box according to claim 9, characterized in that: Also includes: A connecting plate is provided on a side of the support frame away from the first supporting plate. The connecting plate is fixedly connected to the support frame and is provided between the first cover plate and the second cover plate.

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