Expandable multi-cavity distribution box

Abstract

The invention relates to an expandable multi-cavity distribution box, which comprises a box body, the side wall of which is provided with an installation port used for installing components, and the installation port is used as an installation foundation; the mounting plate is arranged in the box body; the plurality of mounting seats are arranged on the mounting plate in a sliding manner, and are provided with connecting columns for connecting the optical fiber distribution frame; and the fixing piece is arranged on the mounting seat and is used for fixing the mounting seat on the mounting plate. When optical fibers are connected and different types of optical fiber distribution frames are needed, the installation seat can slide to a proper position, and the corresponding optical fiber distribution frame is installed on the installation seat, so that the corresponding optical fiber distribution frame can be freely installed and expanded in the box body according to requirements, and different optical fibers can be connected in the same optical fiber distribution box. The occupied space is reduced, and meanwhile, the connection parts of the optical fibers are integrated in the same box body, so that the subsequent maintenance and repair of the optical fibers are more convenient.

Description

Technical Field

[0001] The present application relates to the technical field of distribution boxes, and in particular to an expandable multi-chamber distribution box. Background Art

[0002] Optical fiber distribution boxes are important supporting equipment in optical fiber transmission systems, mainly used for optical fiber splicing at the optical fiber terminals, installation of optical connectors, adjustment of optical paths, storage of redundant pigtails, and protection of optical fibers. It plays an important role in the safe operation and flexible use of optical fiber communication networks.

[0003] However, the optical fiber distribution frames inside traditional optical fiber distribution boxes are usually fixedly arranged. When the devices to be connected by the optical fiber distribution box are of various types and the models of the connected optical fibers are different, it is necessary to set up multiple different optical fiber distribution boxes for connection respectively, which requires a large installation space and is not conducive to the installation of optical fibers in a small space. Summary of the Invention

[0004] In order to solve the problem that the fixed optical fiber distribution frame inside the traditional optical fiber distribution box cannot connect optical fibers of different models, the present application provides an expandable multi-chamber distribution box.

[0005] The expandable multi-chamber distribution box provided by the present application adopts the following technical solutions: An expandable multi-chamber distribution box includes: A box body, the side wall of which has an installation opening for installing components, serving as an installation base; An installation plate, which is arranged inside the box body; A plurality of mounting seats, which are slidably arranged on the installation plate and are provided with connecting columns for connecting optical fiber distribution frames.

[0006] Through the above technical solutions, when connecting optical fibers, when different models of optical fiber distribution frames are needed, the mounting seats can be slid to appropriate positions, and then the corresponding optical fiber distribution frames can be installed on the mounting seats, so that the corresponding optical fiber distribution frames can be freely installed and expanded in the box body according to needs. Furthermore, different optical fibers can be connected in the same optical fiber distribution box, reducing the space occupation. At the same time, because the connection parts of the optical fibers are integrated in the same box body, the subsequent maintenance and repair of the optical fibers are more convenient.

[0007] Optionally, the installation plate is provided with slide rails, the slide rails are parallel to each other, the slide rails are connected to the installation plate, and the main body of the slide rails is located between the installation plate and the inner wall of the box body, and the mounting seats are slidably installed on the slide rails.

[0008] Optionally, the installation plate is provided with guide rails, the two ends of the slide rails are slidably installed on the guide rails, and the slide rails are provided with fixing mechanisms for fixing the ends of the slide rails to the guide rails.

[0009] Optionally, the fixing mechanism includes two first top blocks respectively slidably installed at both ends of the slide rail and two second top blocks respectively slidably installed on the two first top blocks, a clamping spring is provided between the first top block and the second top block, the second top block is provided with a friction block, and the slide rail is provided with a pushing mechanism, the pushing mechanism is used to push the first top block, and then push the friction block of the second top block to press against the guide rail through the clamping spring.

[0010] Optionally, the pushing mechanism includes two push plates slidably installed in the slide rail, the two push plates are parallel, the push plates slide along the width direction of the slide rail, the ends of the push plates are provided with a first guide surface, the first top block is provided with a guide block, and the guide block is provided with a second guide surface that cooperates with the first guide surface. When the push plates slide back and forth, the push plates push the guide blocks to move in the direction of the compression spring through the first guide surface, and the pushing mechanism also includes a pushing member for pushing the push plates to slide.

[0011] Optionally, the pushing member includes a cylindrical slider slidably mounted on the mounting seat, the push plate is pressed against the side wall of the slider, and the side wall of the slider is provided with a protrusion. By rotating the slider, the slider can push the push plate to slide through the protrusion, and at this time the push plate pushes the guide block to move in the direction of compressing the pressing spring.

[0012] Optionally, the connecting column is rotatably installed on the mounting seat, the connecting column is coaxially connected to the slider, the protrusion is cylindrical, the end face of the protrusion facing away from the slider is an arc-shaped protrusion, and the push plate is provided with a positioning hole that cooperates with the protrusion. When the slider is rotated until the protrusion is embedded in the positioning hole, the push plate pushes the guide block and the first top block to press against the compression spring, and the pressing spring pushes the friction block through the second top block to further press against the guide rail, and at this time the friction force between the friction block and the guide rail can be used to bear the weight of the slide rail and the components installed on the slide rail.

[0013] Optionally, the connecting column is threaded with a nut, and the optical fiber distribution frame is fixedly mounted on the connecting column by the nut. A blocking surface is provided on one side of the positioning hole. When the protrusion is embedded in the positioning hole and the nut is in the tightening process, the blocking surface is used to prevent the protrusion from detaching from the positioning hole. The end side wall of the connecting column is provided with a rotating surface for cooperating with a wrench for rotation.

[0014] Optionally, there are two pushing plates, and the two pushing plates are parallel to each other. There are two corresponding guiding blocks for the first top block. The positioning holes are formed on the opposite sides of the two pushing plates. There are also two corresponding bumps. The two bumps are symmetrically arranged with the axis of the slider as the center. When the slider rotates until one of the bumps is fitted into the positioning hole of one of the pushing plates, the other bump is also fitted into the positioning hole of the other pushing plate. When the slider rotates until the bump abuts against the opposite side of the pushing plate, when the slider slides, when the end of one of the bumps is located at the positioning hole, the end of the other bump is in a state of abutting against the pushing plate.

[0015] Optionally, there is at least one partition board in the box body. The partition board is provided with an installation hole for fixing the connector of the tail cable. The partition board is used to separate the part of the installation box where the optical fiber distribution frame is installed.

[0016] In summary, when connecting optical fibers in this application, when different types of optical fiber distribution frames are required, the installation seat can be slid to a suitable position, and then the corresponding optical fiber distribution frame can be installed on the installation seat, so that the corresponding optical fiber distribution frames can be freely installed and expanded in the box body according to needs. Furthermore, different optical fibers can be connected in the same optical fiber distribution box, reducing the space occupation. At the same time, because the connection parts of the optical fibers are integrated in the same box body, the subsequent maintenance and repair of the optical fibers are more convenient. Description of the Drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of this application.

[0018] Figure 2 is a three-dimensional structural schematic diagram of this application with the door body removed.

[0019] Figure 3 is a three-dimensional structural schematic diagram of the slide rail and the installation seat of this application.

[0020] Figure 4 is a three-dimensional structural schematic diagram of the slide rail and the installation seat of this application from another angle.

[0021] Figure 5 is a cross-sectional view of the slide rail of this application.

[0022] Those skilled in the art will understand that the elements in the drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the sizes and positions of some elements in the drawings may be enlarged relative to other elements to help improve the understanding of the embodiments of the present invention.

[0023] Reference numerals: 1, box body; 11, mounting opening; 12, guide rail; 13, door body; 2, mounting plate; 21, mounting window; 3, mounting seat; 31, connecting column; 311, rotating surface; 4, sliding rail; 5, fixing mechanism; 51, first top block; 511, mounting cavity; 52, second top block; 53, pressing spring; 54, friction block; 55, guiding block; 56, second guiding surface; 6, pushing mechanism; 61, push plate; 62, first guiding surface; 63, positioning hole; 64, blocking surface; 7, pushing member; 71, slider; 72, convex block; 8, partition board; 81, mounting hole. Detailed implementation manners

[0024] The following further elaborates on this application Figures 1 to 5 in conjunction with the accompanying drawings.

[0025] An embodiment of this application discloses an expandable multi - cavity distribution box for optical fiber wiring. Referring to Figure 1 and Figure 2 , it includes a box body 1 in the shape of a cuboid, a rectangular mounting plate 2, and several mounting seats 3. The mounting plate 2 is fixedly installed inside the box body 1. When the box body 1 is placed vertically, an opening - shaped mounting opening 11 is provided on the side wall of the box body 1, and a door body 13 is rotatably installed on the box body 1 to close the mounting opening 11 of the box body 1.

[0026] Referring to Figure 2 and Figure 5 , two vertical guide rails 12 are fixedly installed on both sides of the mounting plate 2. Several sliding rails 4 are provided between the two guide rails 12. The sliding rails 4 are horizontal, and both ends of the sliding rails 4 are slidably installed on the guide rails 12. Several mounting seats 3 are slidably installed on any one of the sliding rails 4. The mounting seat 3 is provided with a connecting column 31, and the connecting column 31 is used to connect the optical fiber distribution frame.

[0027] Referring to Figure 2 , Figure 3 and Figure 5 , for optical fiber distribution frames of different models, by sliding the sliding rails 4 and the mounting seats 3, they can be adaptively installed. When splicing the optical fibers of multiple devices, the corresponding optical fiber distribution frames can be installed in the box body 1 in advance, so that when connecting the optical fibers of multiple different devices, only one box body 1 is required, reducing the occupied space of the box body 1. At the same time, during later maintenance, it can be carried out within the same box body 1, making the maintenance more convenient.

[0028] Referring to Figure 2 , Figure 3 and Figure 5, several areas for installing fiber optic distribution frames are divided within the box body 1. The areas are isolated by partition plates 8. At the same time, mounting holes 81 for fixing pigtail connectors are provided on the partition plates 8. In this embodiment, two areas for installing fiber optic distribution frames are adopted within the box body 1. Through the separation of the partition plates 8, different fiber optic distribution frames are located in independent areas. At the same time, the optical fibers of each fiber optic distribution frame do not interfere with each other, and the pigtails are also separately connected and matched through the partition plates 8. Furthermore, during the subsequent maintenance process, each part is simple and clear, and it is also easier to distinguish the equipment corresponding to each area.

[0029] Refer to Figure 2 , Figure 3 and Figure 5 , the mounting plate 2 of the area for installing the fiber optic distribution frame is provided with a mounting window 21 penetrating through it. The mounting seat 3 is located in the mounting window 21. The mounting seat 3 is adjusted for movement in the XY coordinate system directions in the mounting window 21 through the cooperation between the slide rail 4 and the guide rail 12. So that the mounting seat 3 slides various fiber optic distribution frames of different models to appropriate positions for fitting and installation.

[0030] Refer to Figure 2 , Figure 3 and Figure 5 , both ends of the slide rail 4 are provided with fixing mechanisms 5 for forming a fixation with the guide rail 12. The fixing mechanism 5 includes a first top block 51 slidably mounted at the end of the slide rail 4 and a second top block 52 slidably sleeved on the first top block 51. An installation cavity 511 is provided in the connection part between the first top block 51 and the second top block 52. A pressing spring 53 is provided in the installation cavity 511. A friction block 54 is fixedly provided on the end face of the second top block 52. The pressing spring 53 pushes the friction block 54 of the second top block 52 to tightly press against the guide rail 12.

[0031] Refer to Figure 2 , Figure 3 and Figure 5 , the slide rail 4 is further provided with a pushing mechanism 6. The pushing mechanism 6 is used to push the friction block 54 of the second top block 52 to tightly press until the friction force between the friction block 54 and the guide rail 12 increases to a level where the slide rail 4 can be fixed.

[0032] When the pushing mechanism 6 does not push the second top block 52 to slide, the friction force generated by tightly pressing the friction block 54 of the second top block 52 against the guide rail 12 is used to support the fiber optic distribution frame installed on the mounting seat 3. Through the pre-positioning of the second top block 52 and the friction block 54 in the initial state for the slide rail 4, when installing the fiber optic distribution frame, the slide rail 4 is not likely to slide due to the action of installing the fiber optic distribution frame, which is beneficial to the installation and positioning of the fiber optic distribution frame, making the installation of the fiber optic distribution frame relatively convenient and fast.

[0033] Refer to Figure 2 , Figure 3 andFigure 5 , the driving mechanism 6 includes a push plate 61 slidably mounted on the slide rail 4.

[0034] In this embodiment, the push blocks 61 are designed as two pieces. The two push plates 61 are parallel to each other and slide in opposite or facing directions along the width direction of the slide rail 4.

[0035] Both ends of the push plate 61 are provided with inclined first guiding surfaces 62. The first top block 51 is provided with two guiding blocks 55 corresponding to the two push plates 61. The guiding blocks 55 are provided with second guiding surfaces 56 that fit the first guiding surfaces 62.

[0036] Refer to Figure 2 , Figure 3 and Figure 5 , when the two push plates 61 slide away from each other, the push plate 61 can push the guiding block 55 towards the direction of the second top block 52 through the cooperation between the first guiding surface 62 and the second guiding surface 56, thereby pushing the first top block 51 to squeeze and press the spring 53, and then pushing the second top block 52 and the friction block 54 to further press against the guide rail 12 until the slide rail 4 is fixed.

[0037] Refer to Figure 3 , Figure 4 and Figure 5 , several driving members 7 are provided between the two push plates 61. The driving member 7 includes a cylindrical slider 71 slidably mounted between the two push plates 61. Two convex blocks 72 are provided on the side wall of the slider 71. The two convex blocks 72 are both cylindrical and are arranged oppositely. The end face of the convex block 72 away from the slider 71 is in a hemispherical protrusion.

[0038] Under normal conditions, the two push plates 61 are pressed against the side wall of the slider 71 by the reaction force of the pressing spring 53. When it is necessary to push the two push plates 61 to move away from each other, only by rotating the slider 71 can the two push plates 61 be pushed to move away from each other through the convex blocks 72 of the slider 71.

[0039] When the end of the convex block 72 abuts against the plate surface of the push plate 61, the push plate 61 pushes the guiding block 55 and the first top block 51 to compress the pressing spring 53. At this time, the friction force generated by the second top block 52 and the friction block 54 pressing against the guide rail 12 under the push of the pressing spring 53 reaches the requirement for fixing the slide rail 4.

[0040] Refer to Figure 3 , Figure 4 and Figure 5, since the opposite surfaces of the push plates 61 are relatively smooth, the pushing stability of the convex blocks 72 against the push plates 61 is poor. Therefore, a number of positioning holes 63 are spaced apart along the length direction of the push plates 61 on the opposite side of the two push plates 61. The positioning holes 63 are fitted with the ends of the convex blocks 72. When the slider 71 rotates to abut against the push plate 61 through the convex block 72, the ends of the convex block 72 can be embedded into the positioning holes 63 to complete the fixation between the convex block 72 and the push plate 61.

[0041] Meanwhile, the hole pitch between the positioning holes 63 is the same as the difference between the mounting holes 81 of each type of fiber optic distribution frame. The length of the slider 71 is greater than the diameter of the positioning hole 63. Rotate the slider 71 until the convex block 72 abuts against the push plate 61, and then slide the slider 71. When the end of any one convex block 72 is located at the positioning hole 63, the end of the other convex block 72 remains in contact with the plate surface of the push plate 61.

[0042] Through the above design, when the slider 71 passes through the positioning hole 63 during the sliding process, due to the support at both ends of the slider 71, the positioning hole 63 will not interfere with the sliding of the slider 71.

[0043] Meanwhile, during the sliding process of the slider 71, since the slider 71 is cylindrical, rotation may occur during the sliding process, and then it is possible that the two convex blocks 72 are respectively aligned with the two positioning holes 63 and then simultaneously embedded into the positioning holes 63, resulting in the obstruction of the sliding of the slider 71. However, through the above design, one of the convex blocks 72 always remains in contact with the push plate 61, so that when the slider 71 slides, it will not be blocked by the mis-embedding of the convex block 72 into the positioning hole 63.

[0044] The sliders 71 are rotatably mounted on the mounting base 3 one by one, and the mounting base 3 can be positioned through the sliders 71, which is convenient for the adaptation between the mounting base 3 and the distribution frame.

[0045] Refer to Figure 2 、 Figure 3 and Figure 5 , the slider 71 is coaxially and fixedly connected to the connecting column 31. A nut is threadedly mounted on the connecting column 31, and the fiber optic distribution frame is fixedly mounted on the mounting base 3 through the nut on the connecting column 31. The cross-section of the positioning hole 63 is semi-circular, and a blocking surface 64 is provided on one side of the positioning hole 63. The blocking surface 64 is located on one side of the tightening direction of the nut on the connecting column 31, and the blocking surface 64 is used to prevent the convex block 72 from rotating out of the positioning hole 63.

[0046] Refer to Figure 2 、 Figure 3 and Figure 5, and since the push plate 61 presses against the slider 71, the slider 71 and the mounting base 3 connected to the slider 71 are not likely to move when not subjected to external forces. Furthermore, the position of the mounting base 3 is not likely to shift after adjustment, facilitating the alignment of the convex block 72 with the positioning hole 63 when the connecting column 31 and the slider 71 are rotated subsequently.

[0047] After rotating the connecting column 31 until the convex block 72 is fitted into the positioning hole 63, align the mounting hole 81 of the fiber optic distribution frame with the connecting column 31, then hang the fiber optic distribution frame on the connecting column 31, and finally tighten the nut to fix the fiber optic distribution frame on the mounting base 3.

[0048] Since a blocking surface 64 is provided on one side of the positioning hole 63 in the tightening direction of the nut, when the nut is tightened on the connecting column 31, the connecting column 31 and the slider 71 are in a stationary state, facilitating the tightening of the nut and also preventing the convex block 72 from being rotated out of the positioning hole 63 during tightening.

[0049] A rotating surface 311 is provided at one end of the connecting column 31 away from the slider 71, and the rotating surface 311 is used to cooperate with a wrench to rotate the connecting column 31. When it is necessary to rotate or fix the connecting column 31, the connecting column 31 can be conveniently fixed by using a wrench.

[0050] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An expandable multi-chamber wiring box, characterized in that, Comprising: A box body (1) with mounting openings (11) for mounting components on its side walls, serving as a mounting base; A mounting plate (2) disposed inside the box body (1); A plurality of mounting seats (3) slidably disposed on the mounting plate (2), and connection columns (31) for connecting an optical fiber distribution frame are provided thereon.

2. The expandable multi-chamber wiring box according to claim 1, characterized in that: The mounting plate (2) is provided with slide rails (4) which are parallel to each other. The slide rails (4) are connected to the mounting plate (2), and the main body of the slide rails (4) is located between the mounting plate (2) and the inner wall of the box body (1). The mounting seats (3) are slidably mounted on the slide rails (4).

3. The expandable multi-chamber wiring box according to claim 2, characterized in that: The mounting plate (2) is provided with guide rails (12). The two ends of the slide rails (4) are slidably mounted on the guide rails (12). The slide rails (4) are provided with a fixing mechanism (5) for fixing the ends of the slide rails (4) to the guide rails (12).

4. The expandable multi-chamber wiring box according to claim 3, characterized in that: The fixing mechanism (5) includes two first top blocks (51) slidably mounted at both ends of the slide rail (4) respectively, and two second top blocks (52) slidably mounted on the two first top blocks (51) respectively. A pressing spring (53) is provided between the first top block (51) and the second top block (52). The second top block (52) is provided with a friction block (54). The slide rail (4) is provided with a pushing mechanism (6) for pushing the first top block (51), and then pushing the friction block (54) of the second top block (52) against the guide rail (12) through the pressing spring (53).

5. The expandable multi-chamber wiring box according to claim 4, wherein: The pushing mechanism (6) includes a push plate (61) slidably mounted in the slide rail (4). The push plate (61) slides along the width direction of the slide rail (4). First guiding surfaces (62) are provided at both ends of the push plate (61). The first top block (51) is provided with a guiding block (55). The guiding block (55) is provided with a second guiding surface (56) which cooperates with the first guiding surface (62). When the push plate (61) slides, the push plate (61) can push the guiding block (55) to move in the direction of compressing the pressing spring (53) through the first guiding surface (62). The pushing mechanism (6) further includes a pushing member (7) for pushing the push plate (61) to slide.

6. The expandable multi-chamber wiring box according to claim 5, characterized in that: The pushing member (7) includes a cylindrical slider (71) slidably mounted on the mounting seat (3). The push plate (61) abuts against the side wall of the slider (71). A convex block (72) is provided on the side wall of the slider (71). When the slider (71) is rotated, the slider (71) can push the push plate (61) to slide through the convex block (72). At this time, the push plate (61) pushes the guiding block (55) to move in the direction of compressing the pressing spring (53).

7. The expandable multi-chamber wiring box according to claim 6, characterized in that: The connecting column (31) is rotatably mounted on the mounting base (3). The connecting column (31) is coaxially connected to the slider (71). The convex block (72) is cylindrical. The end face of the convex block (72) facing away from the slider (71) is arc-shaped and convex. The push plate (61) is provided with a positioning hole (63) that fits and cooperates with the convex block (72). When the slider (71) rotates until the convex block (72) is fitted into the positioning hole (63), the push plate (61) pushes the guiding block (55) and the first top block (51) to tightly press the compression spring. The pressing spring (53) pushes the friction block (54) through the second top block (52) to further tightly press against the guide rail (12), and at this time, the frictional force between the friction block (54) and the guide rail (12) can be used to bear the weight of the slide rail (4) and the components mounted on the slide rail (4).

8. The expandable multi-chamber wiring box according to claim 7, characterized in that: The connecting column (31) is threadedly installed with a nut. The optical fiber distribution frame is fixedly installed on the connecting column (31) through the nut. One side of the positioning hole (63) is provided with a blocking surface (64). When the convex block (72) is embedded in the positioning hole (63) and the nut is being tightened, the blocking surface (64) is used to block the convex block (72) from disengaging from the positioning hole (63). The end side wall of the connecting column (31) is provided with a rotating surface (311) for cooperating with a wrench to rotate.

9. The expandable multi-chamber wiring box according to claim 1, characterized in that: There are two push plates (61). The two push plates (61) are parallel to each other. The first top block (51) correspondingly has two guiding blocks (55). The positioning hole (63) is opened on the opposite side of the two push plates (61). There are also two corresponding convex blocks (72). The two convex blocks (72) are symmetrically arranged with the axis of the slider (71) as the center. When the slider (71) rotates until one convex block (72) is fitted into the positioning hole (63) of one push plate (61), the other convex block (72) is also fitted into the positioning hole (63) of the other push plate (61). Rotate the slider (71) until the convex block (72) abuts against the opposite surface of the push plate (61). When the slider (71) slides, when the end of one convex block (72) is located at the positioning hole (63), the end of the other convex block (72) is in a state of abutting against the push plate (61).

10. The expandable multi-chamber wiring box according to claim 1, characterized in that: At least one partition board (8) is provided inside the box body (1). The partition board (8) is provided with an installation hole (81) for fixing the connector of the tail cable. The partition board (8) is used to separate the part of the installation box where the optical fiber distribution frame is installed from each other.

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