Low-voltage complete switch cabinet

Abstract

The utility model discloses a low-voltage complete switch cabinet, which comprises a switch cabinet body and a wire inlet plate fixed on the side wall of the switch cabinet body, the wire inlet plate is provided with wire inlet and outlet assemblies which are arranged, each wire inlet and outlet assembly comprises a nut, a base and a sealing gasket, the base is provided with a wire hole for a wire to pass through, and the sealing gasket is arranged on the wire hole. A plurality of telescopic anti-friction assemblies are evenly distributed in the wire hole with the circle point as the axis, the base is provided with a radial part, and the sealing gasket abuts against the radial part. According to the utility model, the wires are prevented from being contacted with the wire holes through the anti-friction assembly, long-term friction between the wires and the wire holes is prevented, the service life of the wires is further prolonged, and the plurality of wires passing through the wire holes are separated in different areas through the separation parts, so that the wires can be fixed only by rotating the nuts during subsequent maintenance, and the maintenance efficiency is improved. And the product has the advantages of friction resistance, convenience in maintenance, pulling resistance and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage complete switchgears, and particularly relates to a low-voltage complete switchgear. Background Art

[0002] The main function of a low-voltage complete switchgear is to switch on, control and protect electrical equipment during the processes of power generation, power transmission, power distribution and power conversion in a power system. The components inside the switchgear mainly include a circuit breaker, a disconnector, a load switch, an operating mechanism, an instrument transformer and various protection devices, etc.

[0003] However, when the electrical wires in the existing low-voltage complete switchgear are connected or disconnected, they will pass through the original openings on the side wall of the switchgear. When the wires are led in or out through the openings, the inner walls of the openings will rub against the wires, thus damaging the outer shells of the wires and exposing the conductors of the wires, forming a potential safety hazard. Therefore, the applicant has made a beneficial design and found a solution to the above problems. The technical solution to be introduced below was generated under this background. Summary of the Invention

[0004] The purpose of the utility model is to overcome the deficiencies existing in the above-mentioned background art, and provide a product with anti-friction, convenient for maintenance and anti-pulling features.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A low-voltage complete switchgear includes a switchgear body and an incoming line board fixed on the side wall of the switchgear body. The incoming line board is provided with an arranged incoming and outgoing line assembly. The incoming and outgoing line assembly includes a nut, a base and a sealing gasket. The base is provided with a wire hole for the wire to pass through. The wire hole is evenly distributed with a plurality of retractable anti-friction components around a center point. The base is provided with a radial part. The sealing gasket abuts against the radial part. The sealing gasket is evenly distributed with a plurality of partition parts around the center point. The nut is threadedly connected to the base and abuts against the sealing gasket, so that the sealing gasket contracts inward.

[0007] Preferably, the base is composed of a first shell and a second shell. The first shell and the second shell are evenly distributed with a plurality of concave cavities around the center point. Both sides of the concave cavity are provided with limiting grooves.

[0008] Preferably, the first shell is provided with a hollow column. The radial part is arranged at the bottom of the hollow column. The hollow column is provided with a threaded groove.

[0009] Preferably, the second shell is provided with a flange. The flange is provided with a plurality of mounting holes.

[0010] Preferably, the nut is provided with a resistance portion that abuts against a sealing gasket, the resistance portion is threadedly connected to the thread groove, the inner wall of the nut is provided with a rubber ring, one end of the rubber ring is provided with an extension portion that abuts against an end face of the nut.

[0011] Preferably, the anti-friction component includes a movable block and a roller, the movable block is slidably set in the concave cavity, limit blocks are provided on both sides of the movable block, the movable block is provided with a blind hole, the blind hole is provided with a spring and abuts the concave cavity so that the limit block abuts the limit groove, the roller is pivotally set in the movable block and protrudes from the movable block, the movable block is provided with an inclined groove and is set on both sides of the roller.

[0012] Preferably, the wire hole is provided with a rubber block and fixed at a portion not covered by the movable block.

[0013] Preferably, the sealing gasket is provided with a through hole, the partition is provided on the inner wall of the through hole, at least two of the partitions are provided, and the sealing gasket is provided with a tightening portion that abuts against the radial portion.

[0014] Beneficial effects:

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The utility model avoids the contact between the wire and the wire hole through the anti-friction component, prevents the long-term friction between the wire and the wire hole, and thus prolongs the service life of the wire, thereby overcoming the problems raised by the background technology. The anti-friction component is adapted to wires of different diameters through the spring, and the roller also improves the smoothness of the wire passing in or out, reduces the force required to pull the wire, so that the product has the advantage of anti-friction.

[0017] (2) The utility model separates a plurality of wires passing through the wire holes into different areas through the dividing part, so that during subsequent maintenance, maintenance personnel can quickly find the wires corresponding to the electrical equipment, thereby making the product easy to maintain.

[0018] (3) The utility model rotates the nut to shrink the sealing gasket inward, thereby applying an inward clamping force to the wire in the wire hole, which not only fixes the wire, but also prevents dust and small animals from entering the switch cabinet body, thereby making the product anti-pulling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a low-voltage complete switch cabinet of the utility model;

[0020] Figure 2 This is a structural schematic diagram of an inlet and outlet line assembly of a low-voltage complete switch cabinet of the utility model;

[0021] Figure 3 This is a schematic side sectional view of a low-voltage complete switchgear of the present utility model;

[0022] Figure 4 This is an explosion of a low-voltage complete switchgear of the present utility model Figure 1 ;

[0023] Figure 5 This is an explosion of a low-voltage complete switchgear of the present utility model Figure 2 ;

[0024] The corresponding relationship between the reference numerals and component names in the figure is as follows:

[0025] Reference numerals: 1, switchgear body; 2, incoming line board; 3, incoming and outgoing line assembly; 4, anti-friction assembly;

[0026] 31, nut; 32, base; 33, sealing gasket; 34, rubber ring; 35, rubber block;

[0027] 311, abutting portion;

[0028] 321, wire hole; 322, radial portion; 323, first housing; 324, second housing; 325, cavity;

[0029] 331, dividing portion; 332, through hole; 333, tightening portion;

[0030] 341, extending portion;

[0031] 3231, hollow column; 3232, thread groove;

[0032] 3241, flange; 3242, mounting hole;

[0033] 3251, limiting groove;

[0034] 41, movable block; 42, roller; 43, spring;

[0035] 411, limiting block; 412, blind hole; 413, inclined groove. Detailed implementation manners

[0036] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0037] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0038] In the embodiments of the present utility model, "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the front and rear associated objects.

[0039] Reference example Figures 1 to 5 , a low-voltage complete switchgear, including a switchgear body 1 and an incoming line board 2 fixed on the side wall of the switchgear body 1. The incoming line board 2 is provided with an incoming and outgoing line assembly 3 arranged in a row. The incoming and outgoing line assembly 3 includes a nut 31, a base 32, and a sealing gasket 33. The base 32 is provided with a wire hole 321 for the wire to pass through. The wire hole 321 is evenly distributed around a dot and is provided with a number of telescopic anti-friction components 4. The base 32 is provided with a radial part 322. The sealing gasket 33 abuts against the radial part 322. The sealing gasket 33 is evenly distributed around a dot and is provided with a number of partition parts 331. The nut 31 is threadedly connected to the base 32 and abuts against the sealing gasket 33, causing the sealing gasket 33 to contract inward;

[0040] It is worth mentioning that the base 32 is composed of a first shell 323 and a second shell 324. The first shell 323 and the second shell 324 are evenly distributed around a dot and are provided with a number of concave cavities 325. Both sides of the concave cavity 325 are provided with limit grooves 3251. The concave cavity 325 provides a guiding function for the movable block 41, and the limit groove 3251 limits the extending distance of the movable block 41;

[0041] It is worth mentioning that the first shell 323 is provided with a hollow column 3231. The radial part 322 is arranged at the bottom of the hollow column 3231. The hollow column 3231 is provided with a threaded groove 3232. The radial part 322 guides the sealing gasket 33 to contract towards the center;

[0042] It is worth mentioning that the second shell 324 is provided with a flange 3241. The flange 3241 is provided with a number of mounting holes 3242. Through the mounting holes 3242, the second shell 324 is connected and fixed to the incoming line board 2;

[0043] It is worth mentioning that the nut 31 is provided with a resisting portion 311 and abuts against the sealing gasket 33. The resisting portion 311 is threadedly connected to the thread groove 3232. A rubber ring 34 is provided on the inner wall of the nut 31. An extension portion 341 is provided at one end of the rubber ring 34 and abuts against the end face of the nut 31. The rubber ring 34 prevents the wire from rubbing against the inner wall of the nut 31. The extension portion 341 prevents the wire from rubbing against the edge of the outlet of the nut 31, thereby further avoiding damage to the surface of the wire.

[0044] It is worth mentioning that the anti-friction component 4 includes a movable block 41 and a roller 42. The movable block 41 is slidably arranged in the concave cavity 325. Limit blocks 411 are arranged on both sides of the movable block 41. The movable block 41 is provided with a blind hole 412. The blind hole 412 is provided with a spring 43 and abuts against the concave cavity 325, so that the limit block 411 abuts against the limit groove 3251. The roller 42 is pivotally arranged in the movable block 41 and protrudes from the movable block 41. The movable block 41 is provided with an oblique groove 413 and is arranged on both sides of the roller 42. The limit block 411 is used in conjunction with the limit groove 3251. The blind hole 412 prevents the spring 43 from detaching. The roller 42 improves the smoothness of the wire passing in or out and reduces the force required to pull the wire. The wire passes through the oblique groove 413 to retract the movable block 41 into the concave cavity 325, thereby expanding the distance between the movable blocks 41, thereby adapting to wires of different diameters.

[0045] It is worth mentioning that the wire hole 321 is provided with a rubber block 35 and fixed at a position not covered by the movable block 41. The rubber block 35 prevents the wire from rubbing against the wire hole 321, further preventing the wire surface from being damaged.

[0046] It is worth mentioning that the sealing gasket 33 is provided with a through hole 332, and the partition 331 is arranged on the inner wall of the through hole 332. The partition 331 is provided with at least two, and the sealing gasket 33 is provided with a tightening portion 333, and abuts the radial portion 322. The partition 331 has a certain elasticity, so it is convenient to divide the wires into different areas. The through hole 332 is for the wires to pass through, and the multiple wires passing through the wire hole 321 are separated into different areas by the partition 331, so that during subsequent maintenance, the maintenance personnel can quickly find the corresponding wires connected to the electrical equipment.

[0047] The use principle of the utility model is now described as follows:

[0048] Pass the wire through the wire hole 321, make the wire abut against the inclined groove 413, continue to apply a driving force to the wire, and further make the movable block 41 retract a certain distance into the cavity 325. The spring 43 is compressed and stores energy. After the wire abuts against the roller 42, the force required to push the wire is reduced. The wire continues to move forward and passes through the through hole 332 and the rubber ring 34 in sequence. When the connection between the wire and the electrical equipment in the switch cabinet body 1 is completed, use a tool to rotate the nut 31 to press down the contact surface, so that the radial portion 322 guides the sealing gasket 33 to contract inward, and further makes the through hole 332 closely adhere to the surface of the wire, so that the wire is fixedly connected to the base 32.

[0049] Through the above design, the product can achieve the advantages of anti-friction, easy maintenance, and anti-pulling.

[0050] The above content is a further detailed description of the present invention in combination with specific embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope determined by the claims submitted for the present invention.

Claims

1. A low-voltage complete switchgear cabinet, comprising a switchgear cabinet body (1) and an incoming line board (2) fixed to the side wall of the switchgear cabinet body (1), wherein the incoming line board (2) is provided with incoming and outgoing line components (3) arranged in a row, and is characterized in that: The inlet and outlet wire assembly (3) comprises a nut (31), a base (32), and a sealing gasket (33); the base (32) is provided with a wire hole (321) for a wire to pass through; the wire hole (321) is provided with a plurality of retractable anti-friction components (4) evenly distributed around a dot as an axis; the base (32) is provided with a radial portion (322); the sealing gasket (33) abuts against the radial portion (322); the sealing gasket (33) is provided with a plurality of partition portions (331) evenly distributed around a dot as an axis; the nut (31) is threadedly connected to the base (32) and abuts against the sealing gasket (33) so that the sealing gasket (33) contracts inwardly.

2. The low-voltage complete switchgear according to claim 1, characterized in that: The base (32) is composed of a first shell (323) and a second shell (324); the first shell (323) and the second shell (324) are evenly distributed with a plurality of concave cavities (325) with a circle as the axis; and limiting grooves (3251) are provided on both sides of the concave cavities (325).

3. The low-voltage complete switchgear according to claim 2, characterized in that: The first shell (323) is provided with a hollow column (3231), the radial portion (322) is arranged at the bottom of the hollow column (3231), and the hollow column (3231) is provided with a thread groove (3232).

4. The low-voltage complete switchgear according to claim 3, characterized in that: The second shell (324) is provided with a flange (3241), and the flange (3241) is provided with a plurality of mounting holes (3242).

5. The low-voltage complete switchgear according to claim 4, characterized in that: The nut (31) is provided with a resisting portion (311) and abuts against the sealing gasket (33); the resisting portion (311) is threadedly connected to the thread groove (3232); the inner wall of the nut (31) is provided with a rubber ring (34); one end of the rubber ring (34) is provided with an extension portion (341) and abuts against the end face of the nut (31).

6. The low-voltage complete switchgear according to claim 5, characterized in that: The anti-friction component (4) comprises a movable block (41) and a roller (42); the movable block (41) is slidably arranged in the concave cavity (325); limit blocks (411) are arranged on both sides of the movable block (41); the movable block (41) is provided with a blind hole (412); the blind hole (412) is provided with a spring (43) and abuts against the concave cavity (325) so that the limit block (411) abuts against the limit groove (3251); the roller (42) is pivotally arranged in the movable block (41) and protrudes from the movable block (41); the movable block (41) is provided with an inclined groove (413) and is arranged on both sides of the roller (42).

7. The low-voltage complete switchgear according to claim 6, characterized in that: The wire hole (321) is provided with a rubber block (35) and is fixed at a position not covered by the movable block (41).

8. The low-voltage complete switchgear according to any one of claims 2 to 7, characterized in that: The sealing gasket (33) is provided with a through hole (332), the partition (331) is arranged on the inner wall of the through hole (332), at least two of the partitions (331) are arranged, and the sealing gasket (33) is provided with a tightening portion (333) that abuts against the radial portion (322).

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