Safety distribution box

Abstract

The invention relates to the field of power distribution boxes, in particular to a safety power distribution box which comprises a box body with an opening in the front end, a groove extending forwards in the middle of a rear side plate of the box body, transverse rods transversely fixed to the upper end and the lower end of the box body, clamping seats symmetrically sliding on the two transverse rods, and two-way screws rotationally arranged at the upper end and the lower end of the box body. The two-way screw and the cross rod are arranged in parallel and are in threaded connection with the two symmetrical clamping bases, extending bases are arranged in the four clamping bases, and clamping plates are arranged at the rear ends of the four extending bases in a mode of inclining towards the middles. The protruding size of the box body when the box body is installed on the telegraph pole is reduced, and then the safety coefficient of maintainers is improved.

Description

Technical Field

[0001] The present invention relates to the field of distribution boxes, and particularly to a safe distribution box. Background Art

[0002] A distribution box is an electrical equipment, which has the characteristics of small volume, simple installation, special technical performance, fixed position, unique configuration function, not restricted by the site, relatively common application, stable and reliable operation, high space utilization rate, less land occupation and environmental protection effect;

[0003] When in use, some distribution boxes need to be installed on the outside of the utility pole. However, due to the cylindrical shape of the utility pole, the installed distribution box will protrude from the side of the utility pole due to the thickness of its front and rear space. Therefore, when maintenance personnel repair the electrical appliances inside the distribution box, they need to stay away from the utility pole to repair the electrical appliances inside the distribution box, which greatly reduces the safety factor of the maintenance personnel and is prone to the danger of falling. Summary of the Invention

[0004] The purpose of the present invention is to provide a safe distribution box to reduce the protruding size when the box body is installed on the utility pole, thereby improving the safety factor of maintenance personnel.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A safe distribution box includes a box body with an opening at the front end. A groove extends forward in the middle of the rear side plate of the box body. Cross bars are horizontally fixed at both the upper and lower ends of the box body. Clamping seats are symmetrically slid on both cross bars. Bidirectional screws are rotated at both the upper and lower ends of the box body. The bidirectional screws are arranged parallel to the cross bars and are threadedly connected to the two symmetric clamping seats. Extension seats are provided in all four clamping seats. The rear ends of the four extension seats are inclined towards the middle to be provided with clamping plates.

[0007] An adjusting screw is rotated on each clamping seat, and the adjusting screw is threadedly connected to the corresponding extension seat.

[0008] Anti-slip pads are provided on the inner sides of both the extension seat and the clamping plate.

[0009] An anti-slip pad is provided on the surface of the groove.

[0010] The groove is a trapezoidal groove that is narrow at the front and wide at the rear.

[0011] A middle plate is fixed at the front end of the groove. Multiple teeth are provided at both the left and right ends of the middle plate. Multiple mounting brackets for mounting electrical appliances are horizontally installed at both ends of the middle plate inside the box body.

[0012] The mounting bracket includes a mounting plate. A flat plate is fixed to the end of the mounting plate away from the middle plate. An ear plate is fixed to the rear end face of the mounting plate. A sliding column passes through the ear plate. A top block is provided at the end of the sliding column close to the flat plate. A matching groove for inserting and engaging with the teeth on the middle plate is provided at the front end of the top block. A dial plate is fixed to the middle of the sliding column. A spring is provided between the dial plate and the ear plate.

[0013] A long hole is provided on the mounting plate. The dial plate is limited to slide within the long hole.

[0014] Covers are rotatably mounted on both the left and right sides of the box body through vertical shafts. Semi-circular grooves are provided at the centers of the inner ends of the two covers. A keyway tube is fixed to the center of the middle plate. A limiting ring is fixed to the front end of the keyway tube. A locking rod slides within the limiting ring. A sliding key plate is fixed to the rear end of the locking rod. A control seat is fixed to the front end of the locking rod.

[0015] Fan shafts are rotatably mounted through both the left and right ends inside the box body. Fan plates are fixed to the fan shafts. A plurality of wind plates are fixed to both ends of the fan shafts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 and Figure 2 are schematic structural diagrams of the safety distribution box during use;

[0017] Figure 3 are schematic cross-sectional structural diagrams of the safety distribution box during use;

[0018] Figure 4 are schematic structural diagrams of the safety distribution box when opened;

[0019] Figure 5 is a schematic structural diagram of the box body;

[0020] Figure 6 is a schematic cross-sectional structural diagram of the box body;

[0021] Figure 7 is a schematic structural diagram of the clamping seat and the adjusting screw;

[0022] Figure 8 is a schematic structural diagram of the extension seat and the clamping plate;

[0023] Figure 9 and Figure 10 are schematic structural diagrams of the mounting bracket;

[0024] Figure 11 is a schematic structural diagram of the sliding column and the top block;

[0025] Figure 12 is a schematic structural diagram of the cover;

[0026] Figure 13 is a schematic structural diagram of the locking rod;

[0027] Figure 14 It is a schematic structural diagram of a fan shaft and a fan plate.

[0028] In the figure:

[0029] Box body 101; groove 102; cross bar 103; middle plate 104; keyway tube 105; limit ring 106; tooth 107;

[0030] Bidirectional screw 201; clamping seat 202; extension seat 203; clamping plate 204; adjusting screw 205;

[0031] Mounting plate 301; long hole 302; flat plate 303; ear plate 304; sliding column 305; dial plate 306; spring 307; top block 308; matching groove 309;

[0032] Cover plate 401; vertical shaft 402; semi-circular groove 403;

[0033] Locking rod 501; sliding key plate 502; control seat 503;

[0034] Fan shaft 601; fan plate 602; wind plate 603. Specific implementation manner

[0035] As Figures 1-14 shown, a safety distribution box is described in detail:

[0036] A safety distribution box includes a box body 101 with an opening at the front end. A groove 102 extends forward from the middle of the rear side plate of the box body 101. Cross bars 103 are horizontally fixed at both the upper and lower ends of the box body 101. Clamping seats 202 slide symmetrically on both cross bars 103. Bidirectional screws 201 are rotatably arranged at both the upper and lower ends of the box body 101. The bidirectional screws 201 are arranged parallel to the cross bars 103 and are threadedly connected to the two symmetric clamping seats 202. Extension seats 203 are provided in all four clamping seats 202. The rear ends of the four extension seats 203 are inclined towards the middle and are provided with clamping plates 204.

[0037] During installation, align the groove 102 of the box body 101 with the telegraph pole, and then rotate the two bidirectional screws 201. The two bidirectional screws 201 respectively drive the two pairs of clamping seats 202 at the upper and lower ends to move closer to each other through threaded transmission. Then, the clamping seats 202 drive the extension seats 203 and the clamping plates 204 to tightly press against the surface of the telegraph pole. Cooperating with the inner surface of the groove 102, the telegraph pole is clamped in the groove 102, forming the installation of the box body 101 on the telegraph pole.

[0038] Due to the existence of the rear groove 102 of the box body 101, after installation, it is equivalent to embedding the electric pole into the box body 101 from the rear side of the box body 101, thereby reducing the distance between the surface of the front opening of the box body 101 and the electric pole after installation, thus reducing the protruding size of the box body 101 when installed on the electric pole. Furthermore, when maintenance personnel perform maintenance, there is no need to increase the distance between themselves and the electric pole, greatly improving the safety factor of the maintenance personnel; moreover, to a certain extent, it reduces the occupation of the surrounding space by the box body 101, especially suitable for places with relatively narrow spaces, which helps to optimize space utilization.

[0039] Through the cooperation of the electric pole and the groove 102, the connection between the box body 101 and the electric pole is tighter and more stable, which can effectively reduce the shaking or displacement of the box body 101 when subjected to external forces such as wind blowing and vibration, improving the stability and safety of the installation of the box body 101;

[0040] At the same time, through the installation of two cross bars 103 on two pairs of clamping seats 202, the distribution box of the present application becomes an integral structure and can be directly installed on the electric pole without installing a box body installation bracket on the electric pole, saving costs.

[0041] Furthermore:

[0042] An adjusting screw 205 is rotatably mounted on each clamping seat 202, and the adjusting screw 205 is threadedly connected to the corresponding extension seat 203.

[0043] By rotating the adjusting screw 205, the extension seat 203 can be threadedly driven to slide within the clamping seat 202, thereby controlling the position of the extension seat 203 relative to the box body 101, that is, the relative position of the clamping plate 204 and the groove 102. At the same time, in cooperation with rotating the bidirectional screw 201 to threadedly drive the distance between the two clamping seats 202, the distance between the two clamping plates 204 is adjusted, thereby adjusting the size of the space surrounded by the two clamping plates 204 and the groove 102, and then achieving the purpose of adapting to the installation of electric poles with different diameters.

[0044] Furthermore:

[0045] By providing anti-slip pads on both the inner side of the extension seat 203 and the clamping plate 204, and on the surface of the groove 102, when the box body 101 is installed, the surfaces of the extension seat 203, the clamping plate 204, and the groove 102 are all in contact with the surface of the electric pole through the anti-slip pads, further increasing the stability of the installation.

[0046] Furthermore:

[0047] Since most utility poles are cylindrical, the groove 102 is set as a trapezoidal groove that is narrower at the front and wider at the rear, which facilitates clamping the utility pole between two inclined sides with two clamping plates 204 during installation, further ensuring the stability after installation;

[0048] As Figure 5 , shown in Figures 6, 9 - 11:

[0049] A middle plate 104 is fixed at the front end of the groove 102. A plurality of teeth 107 are provided at both the left and right ends of the middle plate 104. A plurality of mounting brackets for mounting electrical appliances are horizontally installed at both ends of the middle plate 104 inside the box body 101.

[0050] The mounting bracket includes a mounting plate 301. A flat plate 303 is fixed at the end of the mounting plate 301 away from the middle plate 104. An ear plate 304 is fixed to the rear end face of the mounting plate 301. A sliding column 305 passes through the ear plate 304. A top block 308 is provided at the end of the sliding column 305 close to the flat plate 303. A matching groove 309 for inserting and engaging with the teeth 107 on the middle plate 104 is provided at the front end of the top block 308. A dial plate 306 is fixed in the middle of the sliding column 305. A spring 307 is provided between the dial plate 306 and the ear plate 304.

[0051] Through the setting of the groove 102, the interior of the box body 101 is divided into left and right parts. Thus, mounting brackets are installed in the spaces of the left and right parts for installing electrical components;

[0052] When installing the mounting bracket, place the mounting plate 301 horizontally, and at the same time, fit the flat plate 303 against the inner side wall of the box body 101. Then, overcome the elastic force of the spring 307 and push the top block 308 away from the middle plate 104. Next, fit the rear side face of the mounting plate 301 against the front end face of the middle plate 104. At this time, release the top block 308. Due to the elastic force of the spring 307, the top block 308 will move towards the flat plate 303 and be fastened to the corresponding tooth 107 through the matching groove 309. At this time, due to the existence of the elastic force of the spring 307, the top block 308 is fastened to the tooth 107 through the matching groove 309, and the outer plane of the flat plate 303 at the other end tightly abuts and fits against the inner side wall of the box body 101. The flat plate 303 is located between the top block 308 and the mounting plate 301, thereby forming the limit installation of the mounting plate 301. Then, electrical components can be installed on the mounting plate 301. At the same time, the number and position of the mounting brackets can be selected according to needs.

[0053] Furthermore:

[0054] A long hole 302 is provided on the mounting plate 301. The dial plate 306 is slidably limited in the long hole 302.

[0055] When the upper and lower ends of the mounting bracket are not convenient to contact the top block 308 and the mounting bracket needs to be disassembled, the electrical components on the mounting plate 301 can be moved or disassembled horizontally to expose the long hole 302, and then the dial plate 306 is pushed, so that the top block 308 can be separated from the flat plate 303, thus completing the disassembly of the mounting bracket.

[0056] As Figure 5 , 6, 12, 13 show:

[0057] Cover plates 401 are rotatably connected to both the left and right sides of the box body 101 through vertical shafts 402. At the center of the inner ends of the two cover plates 401, there are semi-circular grooves 403. A keyway tube 105 is fixed at the center of the middle plate 104. A limit ring 106 is fixed at the front end of the keyway tube 105. A locking rod 501 slides inside the limit ring 106. A sliding key plate 502 is fixed at the rear end of the locking rod 501. A control seat 503 is fixed at the front end of the locking rod 501.

[0058] On the middle parts of the outer sides of the left and right ends of the box body 101, there are protruding seats I. A vertical shaft 402 is rotatably connected through the protruding seats I. The two ends of the vertical shaft 402 are also rotatably connected through two protruding seats II on the cover plate 401 in the same way, thus forming the rotational connection between the cover plate 401 and the box body 101. When the two cover plates 401 are closed at the opening at the front end of the box body 101 to form the seal of the box body 101, at this time, the two semi-circular grooves 403 in the middle of the two cover plates 401 just form a complete circular hole, and the locking rod 501 is exactly located in this circular hole. Then the control seat 503 is pushed to make the control seat 503 press tightly against the two cover plates 401. At this time, the sliding key plate 502 at the rear end of the locking rod 501 just slides out of the keyway tube 105. Then the control seat 503 is rotated to make the sliding key plate 502 rotate out of alignment with the keyway in the keyway tube 105. Thus, the locking rod 501 cannot slide axially, and thus the two cover plates 401 are limited through the control seat 503, ensuring the closed state of the two cover plates 401 for the opening at the front end of the box body 101;

[0059] When the opening at the front end of the box body 101 needs to be opened, the control seat 503 is rotated to drive the locking rod 501 and the sliding key plate 502 to rotate, so that the sliding key plate 502 corresponds to the keyway in the keyway tube 105. Then the control seat 503 is pulled forward to make the sliding key plate 502 slide into the keyway tube 105 along the keyway. At this time, the control seat 503 is far away from the two cover plates 401, and the box body 101 can be opened.

[0060] As Figure 5 , 6, 14 show:

[0061] Fan shafts 601 are rotatably connected through both the left and right ends inside the box body 101. Fan plates 602 are fixed on the fan shafts 601. A plurality of wind plates 603 are fixed at both ends of the fan shafts 601.

[0062] Since the box body 101 is generally installed on a telegraph pole at a semi - aerial position where the wind force is relatively large, two fan shafts 601 are provided. When the wind blows the wind plate 603 to drive the fan shafts 601 to rotate, when the fan plate 602 rotates inside the box body 101, it can make the space inside the box body 101 flow rapidly. Thus, it is convenient to quickly dissipate the heat of the electrical appliances inside the box body 101 and improve the service life of the electrical appliances.

[0063] The two fan shafts 601 are respectively located in two spaces separated by the inner groove 102 of the box body 101. These two spaces are generally in an idle state, so as to provide space for the rotation of the fan plate 602. At the same time, in order to improve the efficiency of the fan plate 602 rotating to drive air flow, rounded plates are provided on both sides of the box body 101 with the center of the fan shaft 601 as the axis. Through the cooperation between the inner wall of the rounded plate and the rotation radius of the fan plate 602, the efficiency of the fan plate 602 rotating to drive air flow is improved.

Claims

1. A safety distribution box, characterized in that: It includes a box body with an opening at the front end. In the middle of the rear side plate of the box body, there is a groove extending forward. At both the upper and lower ends of the box body, there are cross bars fixed horizontally. On both cross bars, there are symmetrically sliding clamp seats. At both the upper and lower ends of the box body, there are rotatable bidirectional screws. The bidirectional screws are arranged parallel to the cross bars and are threadedly connected to the two symmetric clamp seats. In each of the four clamp seats, there is an extension seat. At the rear ends of the four extension seats, there are clamping plates inclined towards the middle.

2. The safety distribution box according to claim 1, characterized in that: On each clamp seat, there is a rotatable adjusting screw, and the adjusting screw is threadedly connected to the corresponding extension seat.

3. The safety distribution box according to claim 1, characterized in that: Anti-slip pads are provided on the inner sides of the extension seats and the clamping plates.

4. A safety distribution box according to claim 1, characterized in that: An anti-slip pad is provided on the surface of the groove.

5. The safety distribution box according to claim 1, characterized in that: The groove is a trapezoidal groove that is narrow at the front and wide at the rear.

6. The safety distribution box according to claim 1, wherein: A middle plate is fixed at the front end of the groove. At both the left and right ends of the middle plate, there are multiple teeth. At both ends of the middle plate inside the box body, there are multiple mounting brackets for mounting electrical appliances installed horizontally.

7. A safety distribution box according to claim 6, characterized in that: The mounting bracket includes a mounting plate. At the end of the mounting plate away from the middle plate, there is a flat plate fixed. On the rear end face of the mounting plate, there is an ear plate. A sliding column passes through the ear plate. At the end of the sliding column close to the flat plate, there is a top block. At the front end of the top block, there is a matching groove for plugging into the teeth on the middle plate. In the middle of the sliding column, there is a dial plate fixed. A spring is provided between the dial plate and the ear plate.

8. The safety distribution box according to claim 7, characterized in that: There is a long hole on the mounting plate, and the dial plate is limited to slide in the long hole.

9. A safety distribution box according to claim 6, characterized in that: On both the left and right sides of the box body, there are cover plates rotatable through vertical shafts. At the centers of the inner ends of the two cover plates, there are semi-circular grooves. At the center of the middle plate, there is a keyway tube fixed. At the front end of the keyway tube, there is a limit ring fixed. A locking rod slides in the limit ring. At the rear end of the locking rod, there is a sliding key plate fixed. At the front end of the locking rod, there is a control seat fixed.

10. A safety distribution box according to claim 9, characterized in that: Fan shafts are rotatably passed through both the left and right ends inside the box body. On the fan shafts, there are fan plates fixed. At both ends of the fan shafts, there are multiple wind plates fixed.

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