A power distribution cabinet lead seal structure

Abstract

The utility model relates to a power distribution cabinet technical field especially relates to a kind of power distribution cabinet lead seal structure, including cabinet and lead, the thread hole consistent with the number of lead is set in cabinet, sealing connector is installed in the thread hole, sealing connector is set on lead;The sealing connector includes two symmetrical pressure rings, two pressure rings are connected by two buckles and set on lead, the sleeve of one side of pressure ring is set on lead, pressure groove is set in sleeve, inner sealing ring, which is in contact with the end face of pressure ring, is arranged in pressure groove, sleeve is inserted in thread hole, and the two ends of sleeve on the inside and outside of cabinet are respectively threadedly connected with inner sleeve cover and outer sleeve cover;The power distribution cabinet lead seal structure has the advantages of flexible installation, reliable sealing, low cost and convenient maintenance, effectively solves the deficiency of traditional threading mode, and is especially suitable for the protection needs of power distribution cabinet in complex environments such as outdoor and industrial workshop.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet technology, specifically a power distribution cabinet lead wire sealing structure. Background Technology

[0002] Traditional distribution cabinet wiring typically uses junction boxes, cable trays, or pre-embedded conduits, but this presents the following problems: 1. Additional auxiliary components are required, making the wiring process cumbersome, especially for non-standard wiring or later modifications, where custom-made parts are needed, which is time-consuming and labor-intensive; 2. Traditional structures rely heavily on sealant, which can easily lead to gaps widening due to material aging after long-term use, making it difficult to meet the protection requirements of outdoor, humid, or dusty environments; and in outdoor or humid environments, rainwater and condensation can easily seep into the cabinet through poorly sealed wiring holes, causing short circuits and corrosion of electrical components; while insects and rodents can enter the cabinet through unsealed or poorly sealed gaps, gnawing on the cable insulation layer, causing malfunctions or even fires. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a sealing structure for the lead wires of a power distribution cabinet, which solves the technical problems of poor installation flexibility and inadequate sealing effect.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a power distribution cabinet lead wire sealing structure, including a cabinet body and lead wires, the cabinet body has wire holes with the same number as the lead wires, a sealing connector is installed in the wire holes, and the sealing connector is sleeved on the lead wires;

[0005] The sealing connector includes two symmetrically arranged pressure rings. The two pressure rings are connected by two snaps and sleeved on the lead wire. One side of the pressure ring is provided with a sleeve that is sleeved on the lead wire. A pressing groove is opened in the sleeve. An inner sealing ring that contacts the end face of the pressure ring is provided in the pressing groove. The sleeve is inserted into the wire hole. The two ends of the sleeve located inside and outside the cabinet are respectively threaded with an inner cover and an outer cover.

[0006] Preferably, the pressure ring has slots at both ends for insertion into the buckle.

[0007] Preferably, the buckle is U-shaped, with a bevel at one end and two protrusions at the other end.

[0008] Preferably, both the inner and outer covers have anti-slip textures on their outer walls.

[0009] Preferably, both the inner and outer covers have a through hole at their center that matches the diameter of the lead wire.

[0010] Preferably, the outer wall of the sleeve is provided with a stepped groove, and an outer sealing ring is fitted in the stepped groove, with the outer sealing ring fitting against the outer wall of the cabinet near the wire hole.

[0011] By employing the above technical solution, this utility model provides a lead sealing structure for a power distribution cabinet, which has at least the following beneficial effects:

[0012] 1. The lead wire sealing structure of this distribution cabinet adopts the "direct opening in the cabinet + sealing connector" lead wire sealing structure. By opening the wire hole on the distribution cabinet as needed, and using the sealing connector to seal the gap between the lead wire and the wall of the wire hole, this structure has the advantages of flexible installation, reliable sealing, low cost and convenient maintenance. It effectively solves the shortcomings of traditional wiring methods and is especially suitable for the protection needs of distribution cabinets in complex environments such as outdoor and industrial workshops.

[0013] 2. The lead wire sealing structure of this distribution cabinet, by fitting an outer sealing ring on the outer wall of the sleeve that contacts the side wall of the cabinet, combined with an inner sealing ring on the inner side of the sleeve, can form a double-layer sealing effect, greatly improving the sealing performance. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0015] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0016] Figure 2 This is an exploded view of the sealing connector of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the pressure ring and buckle of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal and external structure of the cabinet of this utility model.

[0019] Figure label:

[0020] 1. Cabinet body; 11. Wiring hole; 2. Lead wire; 3. Sealing connector; 31. Pressure ring; 311. Slot; 32. Buckle; 321. Bevel; 33. Sleeve; 331. Press-in groove; 34. Inner sealing ring; 35. Outer cover; 36. Inner sleeve cover; 37. Outer sealing ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] As a key device for power distribution and control in a power system, the safe operation of the internal electrical components of a distribution cabinet depends on a reliable protective structure. In the case of cable access in a distribution cabinet, the sealing treatment of the lead wire 2 and the cable hole 11 in the cabinet body 1 is a core technical aspect to prevent the intrusion of the external environment.

[0023] Due to the limitations of existing technologies, such as poor installation flexibility and inadequate sealing performance, please refer to... Figures 1-4 This embodiment provides a sealing structure for the lead wire 2 of a power distribution cabinet, which has advantages such as flexible installation, reliable sealing, low cost, and convenient maintenance. It effectively solves the shortcomings of traditional wiring methods and is especially suitable for the protection needs of power distribution cabinets in complex environments such as outdoor and industrial workshops. The sealing structure includes a cabinet body 1 and lead wires 2. The cabinet body 1 has a number of wire holes 11 that are the same as the number of lead wires 2. Sealing connectors 3 are installed in the wire holes 11 and are sleeved on the lead wires 2. The holes can be opened as needed to accommodate different numbers of cables, which is highly flexible. The one-to-one sealing avoids gaps between cables and improves the overall sealing performance. Specifically, the sealing connectors 3 include two symmetrically arranged pressure rings 31. The two pressure rings 31 are connected by two buckles 32 and sleeved on the lead wires 2. A sleeve 33 is provided on one side of the pressure rings 31 and sleeved on the lead wires 2. The sleeve 33 has a pressing groove 331 inside, and an inner sealing ring 34 that contacts the end face of the pressure ring 31 is provided in the pressing groove 331. The sleeve 33 is inserted into the wire hole 11. The two ends of the sleeve 33 located on the inner and outer sides of the cabinet 1 are respectively threaded with an inner sleeve cover 36 and an outer sleeve cover 35. In use, the two pressure rings 31 are aligned and put on the lead wire 2 through the buckle 32. Then, one end of the sleeve 33 is inserted into the wire hole 11 and the inner sleeve cover 36 is used to fix the sleeve 33 inside the cabinet 1. Then, the inner sealing ring 34 is placed in the pressing groove 331 inside the sleeve 33. Then, one end of the lead wire 2 is inserted into the cabinet 1 along the inner side of the sleeve 33. Finally, the outer sleeve cover 35 is screwed on the sleeve 33. The inner side of the outer sleeve cover 35 squeezes the pressure ring 31 and the end face of the pressure ring 31 squeezes the inner sealing ring 34, thereby forming a connection seal.

[0024] Furthermore, the pressure ring 31 has slots 311 at both ends for insertion into the buckle 32; and the buckle 32 is U-shaped, with a bevel 321 at one end and two protrusions at the other end; the slots 311 allow the buckle 32 to be smoothly inserted into the buckle 32 and form a connection and fixation between the two pressure rings 31, while the bevel 321 allows the buckle 32 to be quickly inserted into the slots 311, and the protrusions allow the buckle 32 to be easily pushed out, thereby separating the two pressure rings 31.

[0025] Since both the inner cover 36 and the outer cover 35 are circular, slippage can easily occur when screwing them on. To address this issue, anti-slip textures are provided on the outer walls of both the inner cover 36 and the outer cover 35. These textures enhance friction, eliminating the need for additional tools during installation and allowing for controllable tightening force to prevent over-tightening or loosening.

[0026] If the diameter of the through hole in the inner cover 36 and the outer cover 35 does not match that of the lead wire 2, foreign objects may easily enter the inner cover 36 and the outer cover 35 through the through hole, causing the inner cover 36 and the outer cover 35 to be blocked and difficult to turn. To address this issue, a through hole with the same diameter as the lead wire 2 is provided at the center of both the inner cover 36 and the outer cover 35. The purpose of this design is to allow the inner cover 36 and the outer cover 35 to fit snugly against the lead wire 2, minimizing gaps and reducing the entry of foreign objects into the inner cover 36 and the outer cover 35.

[0027] Because there may be some error when opening the wire hole 11, the diameter of the wire hole 11 may be inconsistent. However, the size of the sleeve 33 is fixed. Therefore, when the sleeve 33 is inserted into the hole of the lead wire 2, there will be some error gap, which will affect the sealing performance. To address this issue, a stepped groove is provided on the outer wall of the sleeve 33, and an outer sealing ring 37 is fitted in the stepped groove. The outer sealing ring 37 is attached to the outer wall of the cabinet 1 near the wire hole 11. The outer sealing ring 37 is used to compensate for the error of the wire hole 11. Combined with the inner sealing ring 34 on the inner side of the sleeve 33, a double-layer sealing effect can be formed, which greatly improves the sealing performance.

[0028] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lead wire sealing structure for a power distribution cabinet, comprising a cabinet body (1) and lead wires (2), wherein the cabinet body (1) has a number of through holes (11) equal to the number of lead wires (2), characterized in that: A sealing connector (3) is installed inside the thread hole (11), and the sealing connector (3) is sleeved on the lead wire (2); The sealing connector (3) includes two symmetrically arranged pressure rings (31). The two pressure rings (31) are connected by two buckles (32) and sleeved on the lead wire (2). A sleeve (33) is provided on one side of the pressure ring (31) and sleeved on the lead wire (2). A pressing groove (331) is provided in the sleeve (33). An inner sealing ring (34) is provided in the pressing groove (331) and contacts the end face of the pressure ring (31). The sleeve (33) is inserted into the wire hole (11). The two ends of the sleeve (33) located inside and outside the cabinet (1) are respectively threaded with an inner cover (36) and an outer cover (35).

2. The distribution cabinet lead sealing structure according to claim 1, characterized in that: The pressure ring (31) has slots (311) at both ends that are inserted into the buckle (32).

3. The distribution cabinet lead sealing structure according to claim 1, characterized in that: The buckle (32) is U-shaped, and one end of the buckle (32) is provided with a bevel (321) and the other end is provided with two protrusions.

4. The distribution cabinet lead sealing structure according to claim 1, characterized in that: The outer walls of both the inner cover (36) and the outer cover (35) are provided with anti-slip textures.

5. The distribution cabinet lead sealing structure according to claim 1, characterized in that: Both the inner cover (36) and the outer cover (35) have through holes at their centers that are the same diameter as the lead wire (2).

6. The distribution cabinet lead sealing structure according to claim 1, characterized in that: The sleeve (33) has a stepped groove on its outer wall, and an outer sealing ring (37) is fitted in the stepped groove. The outer sealing ring (37) is attached to the outer wall of the cabinet (1) near the wire hole (11).

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