CN113178792B - Wide-application distribution box with adjustable size - Google Patents

Wide-application distribution box with adjustable size Download PDF

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Publication number
CN113178792B
CN113178792B CN202110415555.2A CN202110415555A CN113178792B CN 113178792 B CN113178792 B CN 113178792B CN 202110415555 A CN202110415555 A CN 202110415555A CN 113178792 B CN113178792 B CN 113178792B
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Prior art keywords
box
fixed
box body
gear
sliding
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CN202110415555.2A
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CN113178792A (en
Inventor
高鹏路
夏文华
李国亮
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State Grid Shandong Electric Power Co Ltd
Zaozhuang Power Supply Co of State Grid Shandong Electric Power Co Ltd
State Grid Corp of China SGCC
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State Grid Shandong Electric Power Co Ltd
Zaozhuang Power Supply Co of State Grid Shandong Electric Power Co Ltd
State Grid Corp of China SGCC
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Publication of CN113178792A publication Critical patent/CN113178792A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/46—Boxes; Parts thereof or accessories therefor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/46—Boxes; Parts thereof or accessories therefor
    • H02B1/48—Mounting of devices therein
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56—Cooling; Ventilation

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Patch Boards (AREA)

Abstract

本发明公开了一种可调节尺寸大小的广应用配电箱，包括箱门、固定箱体、箱盖、海绵垫、合页，所述箱门上设有螺钉安装的合页，箱门通过合页与固定箱体连接，固定箱体的上方设有箱盖，箱盖的尺寸大于固定箱体的尺寸，箱盖的中间高两侧低，箱盖上粘结有海绵垫，海绵垫设有两个，两个海绵垫对称设置，所述固定箱体的内部为中空设计，固定箱体的内部设有滑动箱体，滑动箱体能沿固定箱体进行上、下移动，固定箱体内安装有第一齿轮，转动第一齿轮控制滑动箱体的移动，滑动箱体的内壁上部焊接有限位块，所述固定箱体、滑动箱体的后背板上设有螺钉安装的导轨。本发明设计合理；滑动箱体与固定箱体能根据实际情况改变配电箱的高度。

Figure 202110415555

The invention discloses a widely used distribution box with adjustable size, which includes a box door, a fixed box body, a box cover, a sponge pad and a hinge. The box door is provided with a screw-mounted hinge, and the box door passes through the box. The hinge is connected with the fixed box body. The box cover is arranged above the fixed box body. The size of the box cover is larger than that of the fixed box body. The middle of the box cover is high and the two sides are low. There are two, two sponge pads are symmetrically arranged, the interior of the fixed box is hollow design, the inside of the fixed box is provided with a sliding box, the sliding box can move up and down along the fixed box, and the inside of the fixed box is A first gear is installed, and the rotation of the first gear controls the movement of the sliding box body. The upper part of the inner wall of the sliding box body is welded with a limit block, and the backboards of the fixed box body and the sliding box body are provided with screw-mounted guide rails. The design of the invention is reasonable; the sliding box body and the fixed box body can change the height of the distribution box according to the actual situation.

Figure 202110415555

Description

Wide-application distribution box with adjustable size
Technical Field
The invention relates to a widely-applied distribution box with adjustable size.
Background
Thereby carry out the switch in the block terminal, thereby the installation of instrument is easy the maintenance of circuit, the management, the block terminal has important effect in hospital, market, square as middle conversion cabinet, the size of current block terminal is fixed, when instrument or switch are more, thereby the space in the block terminal is less can't use the waste that causes the resource, instrument in the block terminal simultaneously, when switch is more, the heat of production is more, if the heat can not in time effluvium can influence the instrument, the use of switch.
Disclosure of Invention
The invention aims to provide a widely-applied distribution box with adjustable size, so as to solve the technical problem.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a wide application block terminal of adjustable size of a dimension, includes chamber door, fixed box, case lid, foam-rubber cushion, hinge, be equipped with the hinge of screw installation on the chamber door, the chamber door passes through the hinge and is connected with fixed box, and the top of fixed box is equipped with the case lid, and the size of case lid is greater than the size of fixed box, and the high both sides in the middle of the case lid are low, and the foam-rubber cushion that bonds on the case lid is equipped with two, and two foam-rubber cushions symmetry set up, the inside of fixed box is hollow design, and the inside of fixed box is equipped with the slip box, and the slip box can move up and down along fixed box, installs first gear in the fixed box, rotates the removal of first gear control slip box, and the welding of inner wall upper portion of slip box has the stopper, be equipped with the guide rail of screw installation on the postnotum of fixed box, slip box, electrical apparatus control switch control guide rail is installed at fixed box, And the sliding box body is arranged inside the sliding box body.
Preferably, a first tooth groove is formed in the inner wall of the sliding box body, the first tooth groove is meshed with the first gear, a guide rail is arranged on the side opposite to the first tooth groove, the first gear is installed in the fixed box body through an installation shaft, one part of the first gear is located in the fixed box body, and the other part of the first gear is located outside the fixed box body.
Preferably, first gear can rotate along the installation axle, and the epaxial cover of installation is equipped with the shift ring, and the periphery welding of shift ring has the grafting post, and the grafting post is L type design, and the long edge direction of grafting post is greater than the thickness of shift ring, and the grafting post can get into the tooth's socket of first gear, and the shift ring carries on spacingly through the fixed pin.
Preferably, the center of shift ring is seted up and is supplied the round hole that the installation axle passed through, is close to round hole department and has seted up two breachs, and the fixed pin is connected with the breach, and two breachs set up along the centre of a circle symmetry of round hole.
Preferably, the welding has the baffle all around of case lid, and the baffle is located the outside of slip box, is equipped with the backing plate of screw installation in the case lid, is equipped with the spring of screw installation on the backing plate, and the other end and the stopper of spring are connected, and the case lid separates with the slip box under the effect of spring under normal condition, and the welding has the rack on the case lid, and rack and second gear meshing, the ring passes through the fix with screw on the case lid.
Preferably, the second gear is mounted at the inner top of the sliding box body through a rotating shaft, a pull rope is wound on the rotating shaft and connected with the circular ring, the box cover moves downwards to drive the rack to move downwards, and the second gear and the rotating shaft rotate under the action of the rack to pull the pull rope tightly.
Preferably, the guide rail includes first fixed rail, the fixed rail of second, connecting plate, extension board, cylinder, round pin key, and first fixed rail is the same with the structure of the fixed rail of second, and the one end and the connecting plate of first fixed rail are connected, and the one end and another connecting plate of the fixed rail of second are connected, all install the cylinder in two connecting plates, and the cylinder runs through the connecting plate and is equipped with the jack, and the extension board passes through the round pin key with two connecting plates and connects.
Preferably, the both sides of second fixed rail have been seted up and have been led to the groove, and electrical switch is connected with leading to the groove, and one side of second fixed rail is equipped with integrated into one piece's arc wall, and the socket has been seted up to the arc wall front end, and the socket is connected with the cylinder, and the front end fastening lead screw of socket utilizes the fastening lead screw to fix after the socket is connected with the cylinder.
Compared with the prior art, the invention has the following advantages: the invention has reasonable design; the sliding box body is connected with the fixed box body, when more instruments and switches need to be installed, the first gear is rotated, the first gear is meshed with the first tooth groove to drive the sliding box body to move upwards to change the height of the distribution box, when the sliding box body moves to a proper position, the moving ring is close to the first gear, and the inserting column on the moving ring enters the tooth groove of the first gear to fix the moving ring and prevent the first gear from rotating; when the weather is dry, the box cover is separated from the sliding box body under the action of the spring to form a certain gap, air enters the distribution box through the gap to accelerate air circulation and improve heat dissipation, when rain or water vapor in the air is more, the weight of the sponge cushion absorbing moisture is increased, the box cover moves downwards, the rack on the box cover drives the second gear and the rotating shaft to rotate together, and the pull rope on the rotating shaft pulls the box cover tightly to prevent rainwater from entering the distribution box; the guide rail includes first fixed rail, the fixed rail of second, connecting plate, extension board, and when switch quantity was more, difficult arranging on same water flat line, thereby the shape that can change the guide rail under the effect of connecting plate, extension board is easily the installation of switch, instrument.
Drawings
Fig. 1 is a schematic view of a size-adjustable distribution box for wide application.
Fig. 2 is an exploded view of the adjustable size, high utility distribution box of the present invention.
Fig. 3 is a partial schematic view of a sliding box body of the adjustable-size wide-application distribution box of the present invention.
Fig. 4 is a schematic view of the first gear and the mounting shaft of the size-adjustable distribution box of the present invention.
Fig. 5 is a schematic view of a movable ring of the adjustable-size distribution box of the present invention.
Fig. 6 is a schematic view of a cover of a size-adjustable distribution box for wide application.
Fig. 7 is a schematic view of a rack and a second gear of the size-adjustable distribution box according to the present invention.
Fig. 8 is a schematic view of the guide rail of the adjustable size distribution box of the present invention.
Fig. 9 is a schematic view of a second fixed rail of the adjustable-size distribution box of the present invention.
Detailed Description
The invention is explained in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1-9, a widely-used distribution box with adjustable size comprises a box door 1, a fixed box body 2, a box cover 3, sponge pads 4 and hinges 5, wherein the box door 1 is provided with the hinges 5 installed by screws, the box door 1 is connected with the fixed box body 2 through the hinges 5, the box cover 3 is arranged above the fixed box body 2, the size of the box cover 3 is larger than that of the fixed box body 2, the middle of the box cover 3 is high, the two sides of the box cover 3 are low, the sponge pads 4 are bonded on the box cover 3, the two sponge pads 4 are symmetrically arranged, the fixed box body 2 is hollow, a sliding box body 6 is arranged inside the fixed box body 2, the sliding box body 6 can move up and down along the fixed box body 2, a first gear 7 is installed inside the fixed box body 2, the first gear 7 is rotated to control the movement of the sliding box body 6, and a limiting block is welded on the upper portion of the inner wall of the sliding box body 6, the back plates of the fixed box body 2 and the sliding box body 6 are provided with guide rails 8 installed by screws, the electric appliance control switch control guide rails 8 are installed in the fixed box body 2 and the sliding box body 6, the inner wall of the sliding box body 6 is provided with a first tooth space 9, the first tooth space 9 is meshed with a first gear 7, a guide rail is arranged on the side opposite to the first tooth space 9, the first gear 7 is installed in the fixed box body 2 through an installation shaft 10, one part of the first gear 7 is positioned in the fixed box body 2, the other part of the first gear 7 is positioned outside the fixed box body 2, the first gear 7 can rotate along the installation shaft 10, a moving ring 11 is sleeved on the installation shaft 10, insertion columns 12 are welded on the periphery of the moving ring 11, the insertion columns 12 are in L-shaped design, the long edge directions of the insertion columns 12 are larger than the thickness of the moving ring 11, the insertion columns 12 can enter the tooth spaces of the first gear 7, and the moving ring 11 is limited through a fixing pin 13, a round hole 14 for passing the installation shaft 10 is arranged at the center of the movable ring 11, two notches 15 are arranged at the positions close to the round hole 14, a fixed pin 13 is connected with the notches 15, the two notches 15 are symmetrically arranged along the circle center of the round hole 14, baffle plates 16 are welded around the case cover 3 and are positioned at the outer side of the sliding case 6, a backing plate 18 for mounting screws is arranged in the case cover 3, springs 17 for mounting screws are arranged on the backing plate 18, the other ends of the springs 17 are connected with a limiting block, the case cover 3 is separated from the sliding case 6 under the action of the springs 17 in a normal state, a rack 19 is welded on the case cover 3, the rack 19 is meshed with a second gear 20, the ring is fixed on the case cover 3 through screws, the second gear 20 is arranged at the inner top of the sliding case 6 through a rotating shaft 21, a pull rope 22 is wound on the rotating shaft 21, the pull rope 22 is connected with the ring, and the case cover 3 moves downwards to drive the rack 19 to move downwards, the second gear 20 and the rotating shaft 21 are tensioned under the action of the rack 19 to rotate the pull rope 22, the guide rail 8 comprises a first fixed rail 23, a second fixed rail 24, connecting plates 25, an elongated plate 26, a cylinder 27 and a pin key 28, the first fixed rail 23 and the second fixed rail 24 have the same structure, one end of the first fixed rail 23 is connected with one connecting plate 25, one end of the second fixed rail 24 is connected with the other connecting plate 25, the cylinders 27 are respectively installed in the two connecting plates 25, the cylinders 27 penetrate through the connecting plates 25 and are provided with insertion holes 29, the elongated plate 26 connects the two connecting plates 25 through the pin key 28, through grooves 30 are formed in the two sides of the second fixed rail 24, an electric switch is connected with the through grooves 30, one side of the second fixed rail 24 is provided with an integrally formed arc-shaped groove 31, an insertion hole 32 is formed in the front end of the arc-shaped groove 31, the insertion hole 32 is connected with the cylinder 27, a front end fastening screw rod 33 of the insertion hole 32 is fixed by the fastening screw rod 33 after the insertion hole 32 is connected with the cylinder 27, the box door 1 is installed after the fixed box body 2 and the sliding box body 6 are fixed in position.
The working principle of the invention is as follows: the height of the sliding box body 6 is changed according to the number of the installed instruments and switches, when the height of the sliding box body 6 needs to be increased, the first gear 7 is rotated, the first gear 7 is meshed with the first tooth grooves 9 to drive the sliding box body 6 to move upwards, when the sliding box body 6 moves to a proper position, the movable ring 11 is close to the first gear 7 along the installation shaft 10, the inserting columns 12 on the movable ring 11 enter the tooth grooves of the first gear 7 to fix the first gear, meanwhile, the fixed pins 13 fasten the movable ring 11 to prevent the first gear 7 from rotating, when weather is dry, the box cover 3 is separated from the sliding box body 6 under the action of the springs 17 to generate certain gaps, the design of the baffle 16 reduces dust entering the distribution box, air enters the distribution box through the gaps to accelerate air circulation and improve heat dissipation, when rain or moisture in the air is more, the weight of the sponge cushion 4 absorbs moisture, case lid 3 moves down, rack 19 on case lid 3 also moves down, rack 19 drives second gear 20 when moving down, pivot 21 is rotatory together, the stay cord 22 on the pivot 21 is taut with case lid 3, avoid in the rainwater gets into the block terminal, guide rail 8 includes first fixed rail 23, second fixed rail 24, connecting plate 25, extension plate 26, when switch quantity is more, be difficult for arranging on same water flat line, thereby at connecting plate 25, the shape that can change the guide rail under extension plate 26 easily opens and shuts, the installation of instrument.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that variations, modifications, substitutions and alterations can be made in the embodiment without departing from the principles and spirit of the invention.

Claims (4)

1.一种可调节尺寸大小的广应用配电箱，包括箱门(1)、固定箱体(2)、箱盖(3)、海绵垫(4)、合页(5)，其特征在于，所述箱门(1)上设有螺钉安装的合页(5)，箱门(1)通过合页(5)与固定箱体(2)连接，固定箱体(2)的上方设有箱盖(3)，箱盖(3)的尺寸大于固定箱体(2)的尺寸，箱盖(3)的中间高两侧低，箱盖(3)上粘结有海绵垫(4)，海绵垫(4)设有两个，两个海绵垫(4)对称设置，所述固定箱体(2)的内部为中空设计，固定箱体(2)的内部设有滑动箱体(6)，滑动箱体(6)能沿固定箱体(2)进行上、下移动，固定箱体(2)内安装有第一齿轮(7)，转动第一齿轮(7)控制滑动箱体(6)的移动，滑动箱体(6)的内壁上部焊接有限位块，所述固定箱体(2)、滑动箱体(6)的后背板上设有螺钉安装的导轨(8)，电器控制开关控制导轨(8)安装在固定箱体(2)、滑动箱体(6)内，所述箱盖(3)的四周焊接有挡板(16)，且挡板(16)位于滑动箱体(6)的外侧，箱盖(3)内设有螺钉安装的垫板(18)，垫板(18)上设有螺钉安装的弹簧(17)，弹簧(17)的另一端与限位块连接，正常状态下箱盖(3)在弹簧(17)的作用下与滑动箱体(6)分离，箱盖(3)上焊接有齿条(19)，齿条(19)与第二齿轮(20)啮合，圆环通过螺钉固定在箱盖(3)上，所述第二齿轮(20)通过转轴(21)安装在滑动箱体(6)的内顶部，转轴(21)上缠绕有拉绳(22)，拉绳(22)与圆环连接，箱盖(3)向下移动带动齿条(19)下移，第二齿轮(20)、转轴(21)在齿条(19)的作用旋转拉绳(22)拉紧，所述导轨(8)包括第一固定轨(23)、第二固定轨(24)、连接板(25)、加长板(26)、圆柱(27)、销键(28)，第一固定轨(23)与第二固定轨(24)的结构相同，第一固定轨(23)的一端与一个连接板(25)连接，第二固定轨(24)的一端与另一个连接板(25)连接，两个连接板(25)内均安装有圆柱(27)，且圆柱(27)贯穿连接板(25)设有插孔(29)，加长板(26)将两个连接板(25)通过销键(28)连接，所述第二固定轨(24)的两侧开设有通槽(30)，电器开关与通槽(30)连接，第二固定轨(24)的一侧设有一体成型的弧形槽(31)，弧形槽(31)前端开设有插口(32)，插口(32)与圆柱(27)连接，插口(32)的前端紧固丝杆(33)，插口(32)与圆柱(27)连接后利用紧固丝杆(33)固定。1. A widely used distribution box with adjustable size, comprising a box door (1), a fixed box body (2), a box cover (3), a sponge pad (4), and a hinge (5), characterized in that , the box door (1) is provided with a screw-mounted hinge (5), the box door (1) is connected with the fixed box body (2) through the hinge (5), and the upper part of the fixed box body (2) is provided with The box cover (3), the size of the box cover (3) is larger than the size of the fixed box body (2), the middle of the box cover (3) is high and the two sides are low, and the box cover (3) is bonded with a sponge pad (4), There are two sponge pads (4), the two sponge pads (4) are symmetrically arranged, the interior of the fixed box (2) is hollow, and the inside of the fixed box (2) is provided with a sliding box (6) , the sliding box body (6) can move up and down along the fixed box body (2), a first gear (7) is installed in the fixed box body (2), and the first gear (7) is rotated to control the sliding box body (6). ), the upper part of the inner wall of the sliding box (6) is welded with a limit block, and the fixed box (2) and the back plate of the sliding box (6) are provided with screw-mounted guide rails (8). The switch control guide rail (8) is installed in the fixed box body (2) and the sliding box body (6), a baffle plate (16) is welded around the box cover (3), and the baffle plate (16) is located in the sliding box body On the outside of (6), a backing plate (18) installed with screws is arranged in the box cover (3), a spring (17) installed with screws is arranged on the backing plate (18), and the other end of the spring (17) is connected to the limit block. In normal state, the box cover (3) is separated from the sliding box body (6) under the action of the spring (17), the box cover (3) is welded with a rack (19), the rack (19) and the second gear (20) meshing, the ring is fixed on the box cover (3) by screws, the second gear (20) is installed on the inner top of the sliding box (6) through the rotating shaft (21), and the rotating shaft (21) is wound with a The pulling rope (22) is connected with the ring, and the box cover (3) moves downward to drive the rack (19) to move downward, and the second gear (20) and the rotating shaft (21) are in the rack (19) The rotating pull rope (22) is tightened, and the guide rail (8) includes a first fixed rail (23), a second fixed rail (24), a connecting plate (25), an extension plate (26), a cylinder (27) , key (28), the first fixed rail (23) and the second fixed rail (24) have the same structure, one end of the first fixed rail (23) is connected with a connecting plate (25), the second fixed rail (24) ) is connected with another connecting plate (25), and a cylinder (27) is installed in the two connecting plates (25), and the cylinder (27) penetrates the connecting plate (25) and is provided with a socket (29), and the extension plate (26) Connect the two connecting plates (25) through the pins (28), the two sides of the second fixed rail (24) are provided with through grooves (30), the electrical switch is connected with the through grooves (30), and the first One side of the two fixed rails (24) is provided with an integrally formed arc-shaped groove (31), the front end of the arc-shaped groove (31) is provided with a socket (32), the socket (32) is connected with the cylinder (27), and the socket (32) of The front end is fastened with the screw rod (33), and the socket (32) is connected with the cylinder (27) and then fixed by the screw rod (33). 2.根据权利要求1所述的一种可调节尺寸大小的广应用配电箱，其特征在于，所述滑动箱体(6)的内壁上开设有第一齿槽(9)，第一齿槽(9)与第一齿轮(7)啮合，与第一齿槽(9)相对侧设有导向轨，第一齿轮(7)经安装轴(10)安装在固定箱体(2)内，第一齿轮(7)的一部分位于固定箱体(2)内，第一齿轮(7)的另一部分位于固定箱体(2)外。2. A widely used distribution box with adjustable size according to claim 1, characterized in that, the inner wall of the sliding box (6) is provided with a first tooth slot (9), the first tooth The slot (9) meshes with the first gear (7), and a guide rail is provided on the opposite side of the first tooth slot (9), and the first gear (7) is installed in the fixed box (2) through the installation shaft (10), A part of the first gear (7) is located inside the fixed casing (2), and another part of the first gear (7) is located outside the fixed casing (2). 3.根据权利要求2所述的一种可调节尺寸大小的广应用配电箱，其特征在于，所述第一齿轮(7)能沿安装轴(10)进行旋转，安装轴(10)上套设有移动环(11)，移动环(11)的外周焊接有插接柱(12)，插接柱(12)呈L型设计，且插接柱(12)的长边方向大于移动环(11)的厚度，插接柱(12)能进入第一齿轮(7)的齿槽内，移动环(11)经固定销(13)进行限位。3. A widely used distribution box with adjustable size according to claim 2, characterized in that, the first gear (7) can rotate along the installation shaft (10), and the installation shaft (10) is on the A moving ring (11) is sleeved, and an inserting post (12) is welded on the outer periphery of the moving ring (11). (11) thickness, the insertion column (12) can enter into the tooth groove of the first gear (7), and the moving ring (11) is limited by the fixing pin (13). 4.根据权利要求3所述的一种可调节尺寸大小的广应用配电箱，其特征在于，所述移动环(11)的中心开设有供安装轴(10)通过的圆孔(14)，靠近圆孔(14)处开设有两个缺口(15)，固定销(13)与缺口(15)连接，两个缺口(15)沿圆孔(14)的圆心对称设置。4. A widely used distribution box with adjustable size according to claim 3, characterized in that, a circular hole (14) for the installation shaft (10) to pass through is formed in the center of the moving ring (11) , two notches (15) are provided near the circular hole (14), the fixing pin (13) is connected with the notches (15), and the two notches (15) are symmetrically arranged along the center of the circular hole (14).
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CN116234214B (en) * 2023-04-12 2023-11-21 安新县康泽电力安装工程有限公司 Instrument box with adjustable inner space

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CN108539599A (en) * 2018-03-22 2018-09-14 刘丽霞 A kind of electric power electric cabinet
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