Direct-current multi-branch quick access box

Abstract

The utility model provides a direct current multi-branch quick access box, which belongs to the technical field of access boxes, and comprises a box body, box doors which are symmetrically distributed are rotatably connected to the outer wall of the box body, side fixing frames which are symmetrically distributed are fixedly connected to the inner wall of the box body, and main clamping blocks which are symmetrically and fixedly connected to the inner walls of the side fixing frames, and a plurality of groups of main clamping blocks are uniformly distributed. According to the utility model, the main clamping block and the auxiliary clamping block are meshed with each other, so that the structure integrally connected with the auxiliary clamping block comprises the mounting frame which is limited after being subjected to height adjustment, any height of equipment mounted on the mounting groove can be adjusted, and the device is suitable for internal mounting equipment with different heights, is strong in universality, and is convenient to use. The problems that in the prior art, an internal structure is installed at a fixed position, the height cannot be adjusted according to needs so as to adapt to the height of installed equipment, and the universality is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of access boxes, and more specifically, to a DC multi-branch quick access box. Background Technique

[0002] The DC multi-branch quick access box is a device used in a DC power supply system, mainly for connecting and managing multiple DC power branches. It is usually applied to photovoltaic power generation, wind power generation and other renewable energy systems, and can also be used in occasions such as electric vehicle charging stations.

[0003] After retrieval, the patent with the Chinese patent application number CN215647733U discloses a DC multi-branch quick access box for a DC system, including an access box body. One side of the access box body is provided with a circuit breaker, two testers located on one side of the circuit breaker, two wiring terminals located on one side of the circuit breaker, a DC air switch device located on one side of the tester, a lightning arrester located on one side of the DC air switch device, and a cover plate is clamped on one side of the access box body;

[0004] Although in the above patent, by installing wiring terminals on one side of the access box body, it is convenient and safe to operate and work, reducing the occurrence of DC power loss and short circuits. The setting of the first channel realizes that the driving mechanism drives the L-shaped plate to slide in and out of the L-shaped card slot to realize the clamping and unclamping of the cover plate, making the process of opening and closing the cover plate more convenient. At the same time, it also improves the safety of the access box body when the cover plate is closed. However, there are still the following deficiencies in the use process: 1. The installation of the internal structure is fixed-position installation, and it cannot be adjusted in height according to needs to adapt to the height of the installed equipment, and the compatibility is poor; 2. The internal structure of this device is not convenient for disassembly, which is not convenient for later maintenance and replacement.

[0005] Therefore, there is an urgent need for a DC multi-branch quick access box to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a DC multi-branch quick access box to solve the problems raised in the above background technique.

[0007] In order to achieve the above invention purpose, the utility model provides the following technical solutions:

[0008] A DC multi-branch quick access box includes a box body, symmetrically distributed box doors are rotatably connected to the outer wall of the box body, and symmetrically distributed side fixing frames are fixedly connected to the inner wall of the box body. It also includes:

[0009] Main clamping blocks, symmetrically and fixedly connected to the inner wall of the side fixing frames, and multiple groups of the main clamping blocks are evenly distributed;

[0010] Detachable mounting assembly, the detachable mounting assembly includes a T-shaped slider slidably connected to the inner wall of the side fixing frame, one end of the T-shaped slider away from the side fixing frame is fixedly connected to a guiding frame, and limiting plates are slidably connected to both the guiding frame and the inner wall of the side fixing frame, and the outer wall of the limiting plate abuts against the top wall of the T-shaped slider. Symmetrically distributed guiding grooves are formed in the inner wall of the guiding frame, a sliding frame is slidably connected to the inner wall of the guiding groove, an installation frame is slidably connected to the outer wall of the sliding frame, an installation groove is formed in the inner wall of the installation frame, and uniformly distributed relays are detachably connected to the inner wall of the installation groove;

[0011] Height adjustment limiting assembly, arranged in the inner wall of the sliding frame.

[0012] As a preferred technical solution of the present application, the height adjustment limiting assembly includes secondary clamping blocks symmetrically rotatably connected to the inner wall of the sliding frame, and the secondary clamping blocks are meshed with the main clamping blocks. Symmetrically distributed telescopic rods are rotatably connected to the outer wall of the secondary clamping blocks. A strong spring is sleeved on the outer wall of the telescopic rod at the top, and the strong spring is fixedly connected to the secondary clamping block, and one end of the strong spring away from the secondary clamping block is fixedly connected to the sliding frame. A strong tension spring is sleeved on the outer wall of the telescopic rod at the bottom.

[0013] As a preferred technical solution of the present application, connecting plates are slidably connected to both the inner walls of the sliding frame and the installation frame. Symmetrically distributed screw rods are fixedly connected to the outer wall of the connecting plate. A fastening knob is threadedly connected to the outer wall of the screw rod. Uniformly distributed pressing blocks are fixedly connected to the outer wall of the fastening knob, and the outer wall of the pressing block abuts against the outer wall of the installation frame.

[0014] As a preferred technical solution of the present application, a plug socket is detachably connected to the inner wall of the installation groove, and a controller is also detachably connected to the inner wall of the installation groove.

[0015] As a preferred technical solution of the present application, the strong tension spring is fixedly connected to the secondary clamping block, and one end of the strong tension spring away from the secondary clamping block is fixedly connected to the sliding frame.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] In the solution of the present application:

[0018] 1. Through the mutual meshing between the main clamping block and the secondary clamping block, the structure integrally connected to the secondary clamping block, including the installation frame, is limited after height adjustment, so that any height adjustment can be performed on the equipment installed on the installation groove, which is applicable to internal installation equipment of different heights and has strong compatibility. It solves the problem in the prior art that the installation of the internal structure is a fixed-position installation and cannot be adjusted in height according to needs to adapt to the height of the installed equipment, resulting in poor compatibility;

[0019] 2. By setting the T-shaped slider to slide within the side fixing frame and limiting it through the limiting plate, and by setting the connecting plate to slide within the mounting frame and the sliding frame and fixing it by extrusion through the fastening knob, the detachable installation of the side fixing frame and the guiding frame and the detachable installation of the mounting frame and the sliding frame are realized, so as to facilitate later maintenance and replacement, solving the problem in the prior art that the internal structure is not convenient for disassembly, maintenance and replacement in later stage. Brief Description of the Drawings

[0020] Figure 1 Fig. is the overall structural schematic diagram of the DC multi-branch quick access box provided by the present application;

[0021] Figure 2 Fig. is the internal structural schematic diagram of the DC multi-branch quick access box provided by the present application;

[0022] Figure 3 Fig. is the partial structural schematic diagram of the mounting frame of the DC multi-branch quick access box provided by the present application;

[0023] Figure 4 Fig. is the partial exploded view of the side fixing frame of the DC multi-branch quick access box provided by the present application;

[0024] Figure 5 Fig. is the partial structural schematic diagram of the sliding frame of the DC multi-branch quick access box provided by the present application;

[0025] Figure 6 Fig. is the partial exploded view of the sliding frame of the DC multi-branch quick access box provided by the present application;

[0026] Figure 7 Fig. is the partial structural schematic diagram of the telescopic rod of the DC multi-branch quick access box provided by the present application.

[0027] Labels in the figures:

[0028] 1, box body; 2, box door; 3, side fixing frame; 4, plug socket; 5, controller; 6, relay; 7, guiding frame; 8, T-shaped slider; 9, limiting plate; 10, guiding groove; 11, sliding frame; 12, mounting frame; 13, mounting groove; 14, main clamping block; 15, connecting plate; 16, screw rod; 17, fastening knob; 18, extrusion block; 19, secondary clamping block; 20, telescopic rod; 21, strong spring; 22, strong tension spring. Detailed Embodiment

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0030] AsFigures 1-7 As shown in the figure, a DC multi-branch fast access box proposed in this embodiment includes a box body 1. The outer wall of the box body 1 is rotatably connected with symmetrically distributed box doors 2. The inner wall of the box body 1 is fixedly connected with symmetrically distributed side fixing frames 3. It further includes:

[0031] Main clamping blocks 14, symmetrically and fixedly connected to the inner wall of the side fixing frame 3, and multiple groups of main clamping blocks 14 are evenly distributed;

[0032] A detachable installation component. The detachable installation component includes a T-shaped slider 8 slidably connected to the inner wall of the side fixing frame 3. One end of the T-shaped slider 8 away from the side fixing frame 3 is fixedly connected with a guiding frame 7. The inner walls of the guiding frame 7 and the side fixing frame 3 are both slidably connected with limiting plates 9, and the outer wall of the limiting plate 9 abuts against the top wall of the T-shaped slider 8. Symmetrically distributed guiding grooves 10 are formed in the inner wall of the guiding frame 7. A sliding frame 11 is slidably connected to the inner wall of the guiding groove 10. An installation frame 12 is slidably connected to the outer wall of the sliding frame 11. An installation groove 13 is formed in the inner wall of the installation frame 12. Relays 6 evenly distributed are detachably connected to the inner wall of the installation groove 13. If it is necessary to disassemble the guiding frame 7, only the limiting plate 9 needs to be slid out, and then it can be slid out of the side fixing frame 3 through the T-shaped slider 8;

[0033] A height adjustment and limiting component, which is arranged inside the sliding frame 11.

[0034] As Figures 6-7 shown, as a preferred embodiment, on the basis of the above method, further, the height adjustment and limiting component includes secondary clamping blocks 19 symmetrically and rotatably connected to the inner wall of the sliding frame 11, and the secondary clamping blocks 19 are meshed and connected with the main clamping blocks 14. Symmetrically distributed telescopic rods 20 are rotatably connected to the outer wall of the secondary clamping blocks 19. A strong spring 21 is sleeved on the outer wall of the telescopic rod 20 at the top, and the strong spring 21 is fixedly connected with the secondary clamping block 19. One end of the strong spring 21 away from the secondary clamping block 19 is fixedly connected with the sliding frame 11. A strong tension spring 22 is sleeved on the outer wall of the telescopic rod 20 at the bottom. By pulling the installation frame 12 to drive the sliding frame 11 to slide in the guiding groove 10 of the guiding frame 7, and then driving the secondary clamping block 19 to slide in the side fixing frame 3. The secondary clamping block 19 is pushed or pulled as a whole to incline downward by the mutual cooperation of the telescopic rod 20, the strong spring 21 and the strong tension spring 22. The overall inclination angle of the main clamping block 14 is upward inclination. When the sliding frame 11 moves downward under the influence of the gravity of the equipment, since the secondary clamping block 19 is limited by the main clamping block 14 at the top, it cannot be flipped. Only when the secondary clamping block 19 moves upward a certain distance from the main clamping block 14 at the bottom and rotates along the arc of the main clamping block 14, can the position limit of the secondary clamping block 19 be realized, that is, the position of the structure connected to the sliding frame 11 including the installation frame 12 is limited, so as to facilitate adjusting the height of the installation frame 12 and the installation groove 13 to adapt to equipment of different heights.

[0035] AsFigures 5-6 As shown, as a preferred embodiment, on the basis of the above method, further, connecting plates 15 are slidably connected to the inner walls of both the sliding frame 11 and the mounting frame 12. Symmetrically distributed screw rods 16 are fixedly connected to the outer walls of the connecting plates 15. Tightening knobs 17 are threadedly connected to the outer walls of the screw rods 16. Uniformly distributed pressing blocks 18 are fixedly connected to the outer walls of the tightening knobs 17, and the outer walls of the pressing blocks 18 abut against the outer walls of the mounting frame 12. If it is necessary to disassemble the mounting frame 12 and the sliding frame 11, only need to rotate the tightening knob 17 to relieve the pressing force of the pressing block 18 on the mounting frame 12, and then slide out the connecting plate 15.

[0036] As Figure 2 shown, as a preferred embodiment, on the basis of the above method, further, a plug socket 4 is detachably connected to the inner wall of the installation groove 13, and a controller 5 is also detachably connected to the inner wall of the installation groove 13. The plug socket 4, the controller 5 and other internal devices are installed through the installation groove 13.

[0037] As Figure 7 shown, as a preferred embodiment, on the basis of the above method, further, the strong tension spring 22 is fixedly connected to the secondary locking block 19, and the end of the strong tension spring 22 away from the secondary locking block 19 is fixedly connected to the sliding frame 11. The strong tension spring 22 pulls the secondary locking block 19 to always tilt downward, which is convenient for automatically adjusting the angle when moving upward and making the secondary locking block 19 snap into the main locking blocks 14 in the upper and lower positions.

[0038] Specifically, when this DC multi-branch quick access box is in use: First, adjust the height of the mounting bracket 12 according to the height of the internal devices, such as the controller 5, the relay 6, and the plug socket 4. Specifically, by pulling the mounting bracket 12, the sliding bracket 11 is driven to slide in the guiding groove 10 of the guiding bracket 7, thereby driving the secondary clamping block 19 to slide in the side fixing bracket 3. The secondary clamping block 19 is pushed or pulled to tilt downward as a whole by the mutual cooperation of the telescopic rod 20, the strong spring 21, and the strong tension spring 22. The main clamping block 14 tilts upward as a whole. When the sliding bracket 11 moves downward under the influence of the gravity of the device, since the secondary clamping block 19 is limited by the main clamping block 14 at the top, it cannot be flipped. Only when the secondary clamping block 19 moves upward a certain distance from the bottom main clamping block 14 and rotates along the arc of the main clamping block 14 can the position of the secondary clamping block 19 be limited, that is, the position of the structure connected to the sliding bracket 11, including the mounting bracket 12, is limited, so as to facilitate adjusting the height of the mounting bracket 12 and the mounting groove 13 to adapt to devices of different heights. When the secondary clamping block 19 at the top moves to the highest position of the side fixing bracket 3, it can continue to move upward. There is a groove (not marked in the figure) at its top. When the top of the sliding bracket 11 slides into the groove and continues to move upward, at this time, the secondary clamping block 19 is rotated by the extrusion on both sides of the groove. At this time, it can be easily moved downward by pressing with a tool. Similarly, except for the secondary clamping block 19 at the top, when it moves between the main clamping blocks 14 at the upper and lower layers, it can be easily moved downward by pressing with a tool. If it is necessary to disassemble the mounting bracket 12 and the sliding bracket 11, only need to rotate the fastening knob 17 to release the extrusion force of the extrusion block 18 on the mounting bracket 12, and then slide out the connecting plate 15. If it is necessary to disassemble the guiding bracket 7, only need to slide out the limiting plate 9 and slide out the T-shaped slider 8 in the side fixing bracket 3.

[0039] The above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above respective embodiments, the present invention is not limited to the above specific embodiments. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and their improvements that do not depart from the spirit and scope of the invention are covered by the scope of the claims of the present invention.

Claims

1. A DC multi-branch quick access box, comprising a box body (1), characterized in that, The outer wall of the box body (1) is rotatably connected with symmetrically distributed box doors (2). The inner wall of the box body (1) is fixedly connected with symmetrically distributed side fixing frames (3). It further includes: Main clamping blocks (14), symmetrically and fixedly connected to the inner walls of the side fixing frames (3), and multiple groups of the main clamping blocks (14) are evenly distributed. A detachable mounting assembly, the detachable mounting assembly includes a T-shaped slider (8) slidably connected to the inner wall of the side fixing frame (3). One end of the T-shaped slider (8) away from the side fixing frame (3) is fixedly connected with a guiding frame (7). The guiding frame (7) and the inner wall of the side fixing frame (3) are both slidably connected with a limiting plate (9), and the outer wall of the limiting plate (9) abuts against the top wall of the T-shaped slider (8). Symmetrically distributed guiding grooves (10) are formed in the inner wall of the guiding frame (7). A sliding frame (11) is slidably connected to the inner wall of the guiding groove (10). An installation frame (12) is slidably connected to the outer wall of the sliding frame (11). An installation groove (13) is formed in the inner wall of the installation frame (12). Relays (6) evenly distributed are detachably connected to the inner wall of the installation groove (13). A height adjustment and limiting component, arranged in the inner wall of the sliding frame (11).

2. The DC multi-branch fast access box according to claim 1, wherein The height adjustment and limiting component includes auxiliary clamping blocks (19) symmetrically and rotatably connected to the inner wall of the sliding frame (11), and the auxiliary clamping blocks (19) are meshed and connected with the main clamping blocks (14). Symmetrically distributed telescopic rods (20) are rotatably connected to the outer walls of the auxiliary clamping blocks (19). A strong spring (21) is sleeved on the outer wall of the telescopic rod (20) at the top, and the strong spring (21) is fixedly connected with the auxiliary clamping block (19). One end of the strong spring (21) away from the auxiliary clamping block (19) is fixedly connected with the sliding frame (11). A strong tension spring (22) is sleeved on the outer wall of the telescopic rod (20) at the bottom.

3. A DC multi-branch fast access box according to claim 1, characterized in that A connecting plate (15) is slidably connected to the inner walls of both the sliding frame (11) and the installation frame (12). Symmetrically distributed screw rods (16) are fixedly connected to the outer wall of the connecting plate (15). A fastening knob (17) is threadedly connected to the outer wall of the screw rod (16). Evenly distributed pressing blocks (18) are fixedly connected to the outer wall of the fastening knob (17), and the outer wall of the pressing block (18) abuts against the outer wall of the installation frame (12).

4. A DC multi-branch fast access box according to claim 1, characterized in that, A plug socket (4) is detachably connected to the inner wall of the installation groove (13), and a controller (5) is also detachably connected to the inner wall of the installation groove (13).

5. A DC multi-branch fast access box according to claim 2, characterized in that, The strong tension spring (22) is fixedly connected with the auxiliary clamping block (19), and one end of the strong tension spring (22) away from the auxiliary clamping block (19) is fixedly connected with the sliding frame (11).

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