Low-voltage draw-out type switch cabinet convenient to overhaul

Abstract

The utility model discloses a low-voltage draw-out type switch cabinet convenient to overhaul, belongs to the technical field of draw-out type switch cabinets, and aims to solve the problem that most draw-out type switch cabinets are lack of limiting structures for wires, so that the wires are easy to wind and knot due to repeated bending. A drawer is slidably mounted in the mounting shell, an outer incoming and outgoing line fixing structure for fastening a wire is mounted on the rear side of the mounting shell, and the wire entering and exiting the mounting shell is fixed through the outer incoming and outgoing line fixing structure, so that the wire outside the mounting shell can be prevented from being pulled when the drawer is pulled. When the drawer is pulled, external wires are prevented from entering the interior of the mounting shell again, the wires entering and led out of the drawer are fixed through the inner wire inlet and outlet fixing structure, and therefore the situation that when the drawer is pulled, the positions of interfaces between the wires and the interior of the drawer are pulled can be prevented, and the situation that the interfaces are loosened is avoided.

Description

Technical Field

[0001] The invention discloses a low-voltage withdrawable switch cabinet which is convenient for maintenance. The invention belongs to the technical field of withdrawable switch cabinets, and in particular relates to the technical field of low-voltage withdrawable switch cabinets which is convenient for maintenance. Background Art

[0002] The main function of the switch cabinet is to open and close, control and protect electrical equipment in the process of power generation, transmission, distribution and energy conversion in the power system. The components in the switch cabinet mainly include circuit breakers, disconnectors, load switches, operating mechanisms, mutual inductors and various protective devices. Since there are many electronic components inside the switch cabinet, they need to be repaired or replaced after damage. In order to facilitate replacement, people have designed pull-out switch cabinets to meet people's use needs. However, most pull-out switch cabinets lack a limiting structure for the wires, which makes the wires easily entangled and knotted due to repeated bending, thereby affecting the connection strength between the wires and the interface. For this reason, we propose a low-voltage pull-out switch cabinet that is easy to maintain. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a low-voltage withdrawable switch cabinet that is easy to maintain, thereby solving the problem that most withdrawable switch cabinets lack a limiting structure for the wires inside, which makes the wires prone to entanglement and knotting due to repeated bending.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A low-voltage withdrawable switch cabinet that is easy to maintain, comprising a mounting shell, a drawer slidably mounted inside the mounting shell, an outer inlet and outlet wire fixing structure for fastening wires mounted on the rear side of the mounting shell, an inner inlet and outlet wire fixing structure for fastening wires mounted on the rear side of the drawer, a wire anti-bending structure is arranged between the rear side of the mounting shell and the rear side of the drawer, and a switch mounting frame is arranged inside the drawer.

[0006] As a preferred technical solution of the utility model, heat dissipation holes are provided on both sides of the installation shell, and installation grooves are provided inside the installation shell at positions corresponding to the heat dissipation holes, and a filter plate is slidably installed inside the installation groove.

[0007] As a preferred technical solution of the utility model, the external input and output line fixing structure includes a wire tube installed in a mounting shell, a conical dust cover is installed inside the wire tube, screw holes are distributed on the sides of the wire tube, and the internal threads of the screw holes are connected with fastening bolts.

[0008] As a preferred technical solution of the utility model, the internal input and output line fixing structure includes a through hole opened on the rear side of the drawer, and sliding grooves are opened on the rear side of the drawer on both sides below the through hole. A pull rod is slidably installed inside the slide groove, and a pressure plate is installed on the surface of the pull rod corresponding to one end of the conical dust cover, and a nut is connected to the external thread of the other end of the pull rod.

[0009] As a preferred technical solution of the utility model, the wire anti-bending structure includes partition one and partition two installed inside the mounting shell, guide rod one is installed on both sides of partition one, spring one is installed on the side of partition one and is sleeved on the outside of guide rod one, and a top plate one is installed on the end of spring one and is slidably installed on the outside of guide rod one.

[0010] As a preferred technical solution of the utility model, guide rods 2 are installed on both sides of the partition 2, springs 2 that are sleeved on the outside of the guide rods 2 are installed on the inner wall of the mounting shell, and top plates 2 that are slidably installed on the outside of the guide rods 2 are installed on the ends of the springs 2.

[0011] As a preferred technical solution of the utility model, baffles are distributed on both sides of the drawer from top to bottom, and a fixing plate is distributed between the two baffles, U-shaped plates clamped on the baffles are installed at both ends of the fixing plates, fixing holes are opened on the U-shaped plates and the fixing plates, and fixing bolts are installed on the internal threads of the fixing holes, and the front side of the drawer is set as a transparent plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the wires entering and exiting the installation shell are fixed by the external input and output wire fixing structure, thereby preventing the wires outside the installation shell from being pulled when the drawer is pulled, and preventing the external wires from entering the interior of the installation shell again; the wires entering and exiting the drawer are fixed by the internal input and output wire fixing structure, thereby preventing the wires from being pulled at the interface between the drawer and the interior of the drawer when the drawer is pulled, and preventing the interface from becoming loose; the setting of the wire anti-bending structure can tension the wires regardless of whether the drawer is opened or closed, thereby preventing the wires from becoming entangled and knotted. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0014] Figure 2 It is a schematic diagram of the first cross-sectional structure of the present invention;

[0015] Figure 3 It is a schematic diagram of a second cross-sectional structure of the present invention;

[0016] 1-installation shell; 2-drawer; 3-external inlet and outlet wire fixing structure; 4-internal inlet and outlet wire fixing structure; 5-wire anti-bending structure; 6-switch mounting frame; 7-heat dissipation hole; 8-installation slot; 9-filter plate; 10-conductor tube; 11-conical dust cover; 12-screw hole; 13-fastening bolt; 14-slide slot; 15-pull rod; 16-pressure plate; 17-nut; 18-through hole; 19-partition one; 20-guide rod one; 21-spring one; 22-top plate one; 23-partition two; 24-guide rod two; 25-spring two; 26-top plate two; 27-baffle; 28-fixing plate; 29-U-shaped plate; 30-fixing hole; 31-fixing bolt; 32-transparent plate. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 , the utility model provides a technical solution:

[0019] A low-voltage withdrawable switch cabinet that is easy to maintain, includes a mounting shell 1, a drawer 2 is slidably mounted inside the mounting shell 1, an outer inlet and outlet fixing structure 3 for fastening the wires is mounted on the rear side of the mounting shell 1, thereby facilitating the fixing operation of the incoming and outgoing wires, an inner inlet and outlet fixing structure 4 for fastening the wires is mounted on the rear side of the drawer 2, thereby facilitating the fixing operation of the incoming and outgoing wires to prevent the interface from being loose, a wire anti-bending structure 5 is arranged between the rear side of the mounting shell 1 and the rear side of the drawer 2, thereby preventing the wires from being entangled, and a switch mounting frame 6 is arranged inside the drawer 2, which is convenient for installing and fixing the switch.

[0020] Heat dissipation holes 7 are provided on both sides of the installation shell 1, and a mounting groove 8 is provided inside the installation shell 1 at the position corresponding to the heat dissipation hole 7. A filter plate 9 is slidably installed inside the installation groove 8, which can not only ensure smooth heat dissipation, but also effectively reduce the amount of dust entering the installation shell 1.

[0021] The external input and output wire fixing structure 3 includes a wire tube 10 installed in the mounting shell 1, and a conical dust cover 11 is installed inside the wire tube 10. The conical dust cover 11 is made of rubber, thereby not only can the wires be tightly wrapped, but also can prevent dust from entering the mounting shell 1 from the position of the wire tube 10. Screw holes 12 are distributed on the side of the wire tube 10, and the internal threads of the screw holes 12 are connected with fastening bolts 13. A gasket is installed at the end of the fastening bolt 13, thereby effectively reducing the occurrence of indentations when the fastening bolt 13 is turned inward to fix the wire.

[0022] The internal input and output wire fixing structure 4 includes a through hole 18 opened on the rear side surface of the drawer 2, and slide grooves 14 are opened on the rear side surfaces of the drawer 2 on both sides below the through hole 18. A pull rod 15 is slidably installed inside the slide groove 14, and a pressure plate 16 is installed on the surface of the pull rod 15 corresponding to one end of the conical dust cover 11. The external thread of the other end of the pull rod 15 is connected with a nut 17. The pressure plate 16 is used to press the wire against the rear side surface of the drawer 2, and then passes through the through hole 18 to enter the interior of the drawer 2, so that the force point is at the position of the pressed wire when the drawer is pulled, thereby preventing the interface from loosening.

[0023] The wire anti-bending structure 5 includes a partition 19 and a partition 23 installed inside the installation shell 1, a guide rod 20 is installed on both sides of the partition 19, a spring 21 sleeved on the outside of the guide rod 20 is installed on the side of the partition 19, and a top plate 22 slidably installed on the outside of the guide rod 20 is installed on the end of the spring 21; a guide rod 24 is installed on both sides of the partition 23, a spring 25 sleeved on the outside of the guide rod 24 is installed on the inner wall of the installation shell 1, and a top plate 22 slidably installed on the outside of the guide rod 20 is installed on the end of the spring 21. A top plate 26 is slidably mounted on the outside of the guide rod 24, so that the wire can be arranged in an S shape inside the drawer 2. When the drawer 2 is pulled outward, the spring 1 21 and the spring 25 are compressed, so that the single wire is straightened. After the pulling force is released, the spring 1 21 and the spring 25 are reset, so that the wire is bent again and the drawer 2 can be driven to slide inward, which not only prevents the wire from being entangled, but also enables the drawer 2 to close automatically, reducing the occurrence of forgetting to close the drawer 2.

[0024] Baffles 27 are distributed on both sides of the drawer 2 from top to bottom, and a fixing plate 28 is distributed between the two baffles 27. U-shaped plates 29 clamped on the baffles 27 are installed at both ends of the fixing plate 28. Fixing holes 30 are opened on the U-shaped plates 29 and the fixing plates 28. The internal threads of the fixing holes 30 are installed with fixing bolts 31, so that the user can adjust the position of the fixing plates 28 according to the needs of use, meeting people's installation and use needs. The front side of the drawer 2 is set as a transparent plate 32, which is convenient for observing the opening and closing conditions inside the drawer 2 without opening it.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-voltage withdrawable switch cabinet that is easy to maintain, comprising a mounting shell (1), wherein a drawer (2) is slidably mounted inside the mounting shell (1), characterized in that: An external input and output wire fixing structure (3) for fastening wires is installed on the rear side of the installation shell (1), an internal input and output wire fixing structure (4) for fastening wires is installed on the rear side of the drawer (2), an electric wire anti-bending structure (5) is provided between the rear side of the installation shell (1) and the rear side of the drawer (2), and a switch mounting frame (6) is provided inside the drawer (2).

2. The low-voltage withdrawable switch cabinet that is easy to maintain according to claim 1 is characterized in that: The left and right sides of the installation shell (1) are both provided with heat dissipation holes (7), the interior of the installation shell (1) is provided with a mounting groove (8) at a position corresponding to the heat dissipation hole (7), and a filter plate (9) is slidably mounted inside the mounting groove (8).

3. The low-voltage withdrawable switch cabinet that is easy to maintain according to claim 1 is characterized in that: The external inlet and outlet wire fixing structure (3) comprises a wire tube (10) installed in the installation shell (1), a conical dust cover (11) is installed inside the wire tube (10), screw holes (12) are distributed on the side of the wire tube (10), and the internal threads of the screw holes (12) are connected with fastening bolts (13).

4. The low-voltage withdrawable switch cabinet that is easy to maintain according to claim 1 is characterized in that: The internal input and output line fixing structure (4) includes a through hole (18) formed on the rear side of the drawer (2), and a slide groove (14) is formed on the rear side of the drawer (2) on both sides below the through hole (18). A pull rod (15) is slidably mounted inside the slide groove (14), and a pressure plate (16) is mounted on the surface of the pull rod (15) corresponding to one end of the conical dust cover (11), and a nut (17) is externally threadedly connected to the other end of the pull rod (15).

5. The low-voltage withdrawable switch cabinet that is easy to maintain according to claim 1 is characterized in that: The wire anti-bending structure (5) comprises a partition plate 1 (19) and a partition plate 2 (23) mounted inside the mounting shell (1), guide rods 1 (20) being mounted on both sides of the partition plate 1 (19), a spring 1 (21) sleeved on the outside of the guide rod 1 (20) being mounted on the side of the partition plate 1 (19), and a top plate 1 (22) slidably mounted on the outside of the guide rod 1 (20) being mounted on the end of the spring 1 (21).

6. The low-voltage withdrawable switch cabinet that is easy to maintain according to claim 5 is characterized in that: Guide rods (24) are installed on both sides of the second partition (23), and springs (25) are installed on the inner wall of the installation shell (1) and are sleeved on the outside of the second guide rods (24). The ends of the second springs (25) are installed with top plates (26) that are slidably installed on the outside of the second guide rods (24).

7. The low-voltage withdrawable switch cabinet that is easy to maintain according to claim 1 is characterized in that: Baffles (27) are distributed on both sides of the drawer (2) from top to bottom, and a fixing plate (28) is distributed between the two baffles (27). U-shaped plates (29) clamped on the baffles (27) are installed at both ends of the fixing plate (28). Fixing holes (30) are opened on the U-shaped plates (29) and the fixing plates (28). Fixing bolts (31) are installed on the internal threads of the fixing holes (30). The front side surface of the drawer (2) is set as a transparent plate (32).

Images