A waterproof and dustproof sealing plug for power line

Abstract

The utility model relates to power line sealing technical field especially is a kind of power line waterproof dustproof sealing plug, including equipment casing, the middle position of the front end surface of equipment casing is equipped with limiting chuck, the rear end of limiting chuck is fixedly connected with and is together with the middle hole groove screw connection of equipment casing rear threaded sleeve, the front end of limiting chuck is fixedly connected with and is set to the front threaded sleeve of lead-through, in the utility model, by the adjusting screw, short pole, limiting sleeve, first spring, center arc plate, front clamping ring, rear clamping ring, second spring and flexible pad being set, will be convenient this power line waterproof dustproof sealing plug can be sealed after sealing line, using to clamp limiting structure, line is clamped and fixed from the inside of entire sealing plug, prevent line in the case where being maintained to be pulled, easily lead to the problem of deformation or displacement of rubber ring body, ensure that rubber ring body can continue to maintain good sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of power line sealing technology, specifically a waterproof and dustproof sealing plug for power lines. Background Technology

[0002] In electrical equipment (such as electrical cabinets), waterproof and dustproof sealing plugs are often used to assist in sealing when electrical connections are made inside the cabinet. This prevents external moisture and dust from entering the electrical equipment and effectively protects cables, electrical equipment, etc. At the same time, existing waterproof and dustproof sealing plugs are generally made of elastic materials, such as rubber or specific plastics, which have good sealing performance.

[0003] Currently available waterproof and dustproof sealing plugs for power lines can achieve sealing by combining a plastic shell and rubber materials. However, considering that the line may be pulled during maintenance, the rubber material may deform or shift, resulting in the inability to maintain the original sealing effect. Furthermore, moisture and dust may enter the electrical cabinet through the gaps, affecting the normal operation of electrical components. Therefore, a new waterproof and dustproof sealing plug for power lines is proposed to address the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a waterproof and dustproof sealing plug for power lines, so as to solve the problem mentioned in the background art that the internal rubber material of the existing waterproof and dustproof sealing plug for power lines may deform or shift due to tension during use, resulting in a reduction in sealing effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A waterproof and dustproof sealing plug for power lines includes a housing. A limiting chuck is located at the center of the front end face of the housing. A rear threaded sleeve, which is threadedly connected to a central slot in the housing, is fixedly connected to the rear end of the limiting chuck. A front threaded sleeve, which is conductively connected, is fixedly connected to the front end of the limiting chuck. Threaded slots are formed on both the left and right sides of the interior of the limiting chuck. Adjusting screws are threadedly connected to the inner sides of the threaded slots. Short rods are fixedly connected to opposite sides of the two adjusting screws. A limiting sleeve, which is slidably connected to the limiting chuck, is fitted over the short rods. A first spring is fitted over the limiting sleeve. A central arc plate is fixedly connected to the side of the limiting sleeve that extends into the central slot of the limiting chuck. A front clamping ring is fixedly connected to the front end of the central arc plate, and a rear clamping ring is fixedly connected to the rear end of the central arc plate. Flexible pads are adhered to the inner surfaces of both the rear and front clamping rings. A second spring is fixedly connected to the outer surfaces of both the rear and front clamping rings.

[0007] Preferably, the rear threaded sleeve extends rearward through the interior of the central slot in the equipment housing, and the length of the rear threaded sleeve is greater than the length of the front threaded sleeve. The interior of the rear threaded sleeve is connected to the interior of the reserved central slot in the middle of the limiting chuck.

[0008] Preferably, the external thread of the front threaded sleeve is connected to a combined cover, and a rubber ring body is inserted into the central slot of the front end face of the combined cover. The rubber ring body has a "T" shaped structure.

[0009] Preferably, there are two adjusting screws. The end of the short screw has a convex ball that penetrates the interior of the limiting sleeve and fits against the outer ring surface of the central arc plate. The central arc plate is coaxially arranged with the front clamping ring and the rear clamping ring respectively.

[0010] Preferably, the thickness of the central arc plate is less than the thickness of the front clamping ring and the rear clamping ring, and there are two of each of the front clamping ring and the rear clamping ring. One end of the first spring is fixedly connected to the inner side of the limiting chuck, and the other end of the first spring is fixedly connected to the outer ring surface of the central arc plate. The second spring connecting the front clamping ring is fixedly connected to the outer ring surface of the front threaded sleeve, and the second spring connecting the rear clamping ring is fixedly connected to the outer ring surface of the rear threaded sleeve.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, the adjustable screw, short rod, limiting sleeve, first spring, central arc plate, front clamping ring, rear clamping ring, second spring, and flexible pad are designed to facilitate the sealing of the power line waterproof and dustproof plug. After the line is sealed by the combined connection of the cover, rubber ring body, and front threaded sleeve, the line is clamped and fixed from the inside of the entire sealing plug by the clamping structure composed of the adjustable screw, short rod, limiting sleeve, first spring, central arc plate, front clamping ring, rear clamping ring, second spring, and flexible pad under the connection limitation of the limiting chuck. This prevents the rubber ring body from deforming or shifting when the line is pulled during maintenance, ensuring that the rubber ring body can continue to maintain a good sealing effect. It also prevents moisture and dust from entering the electrical cabinet through gaps, which is beneficial to the normal operation of the electrical components inside the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the partially cut-away internal structure of the chuck of this utility model;

[0015] Figure 3 This utility model Figure 2A schematic diagram of the structure at point A;

[0016] Figure 4 This is a schematic diagram of the arrangement of the front and rear clamping rings of this utility model;

[0017] Figure 5 This is a schematic diagram of the disassembled structure of the rubber ring body and the combined cover of this utility model.

[0018] In the diagram: 1. Equipment housing; 2. Limiting chuck; 3. Rear threaded sleeve; 4. Front threaded sleeve; 5. Threaded slot; 6. Adjusting screw; 7. Short rod; 8. Limiting sleeve; 9. First spring; 10. Central arc plate; 11. Front clamping ring; 12. Rear clamping ring; 13. Second spring; 14. Flexible pad; 15. Combined cover; 16. Rubber ring body. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-5 This utility model provides a technical solution:

[0021] A waterproof and dustproof sealing plug for power lines includes a housing 1. A limiting chuck 2 is located at the center of the front end face of the housing 1. A rear threaded sleeve 3, which is threadedly connected to the rear end of the limiting chuck 2 and connected to the central slot of the housing 1, is fixedly connected to the rear end of the limiting chuck 2. A front threaded sleeve 4, which is conductively connected to the front end of the limiting chuck 2, is fixedly connected to the front end of the limiting chuck 2. Threaded slots 5 are formed on both the left and right sides of the interior of the limiting chuck 2. Adjusting screws 6 are threadedly connected to the inner side of the threaded slots 5. Short rods 7 are fixedly connected to the opposite sides of the two adjusting screws 6. A limiting sleeve 8 is sleeved on the outside of the short rod 7 and slidably connected to the limiting chuck 2. A first spring 9 is sleeved on the outside of the limiting sleeve 8. A central arc plate 10 is fixedly connected to one side of the limiting sleeve 8 extending into the central slot of the limiting chuck 2. A front clamping ring 11 is fixedly connected to the front end of the central arc plate 10. A rear clamping ring 12 is fixedly connected to the rear end of the central arc plate 10. Flexible pads 14 are glued to the inner surfaces of the rear clamping ring 12 and the front clamping ring 11. A second spring 13 is fixedly connected to the outer ring surfaces of the rear clamping ring 12 and the front clamping ring 11.

[0022] The rear threaded sleeve 3 extends rearward through the middle slot of the equipment housing 1. The length of the rear threaded sleeve 3 is greater than that of the front threaded sleeve 4. The interior of the rear threaded sleeve 3 is connected to the reserved central slot in the middle of the limiting chuck 2. This interconnection facilitates the wiring to pass through the entire interior of the sealing plug and extend into the equipment for electrical connection. The front threaded sleeve 4 is externally threaded with a combined cover 15. A rubber ring body 16 is inserted into the central slot on the front end face of the combined cover 15. The rubber ring body 16 has a "T" shaped structure. This "T" shaped structure prevents it from loosening or separating from the reserved slot on the front end face of the combined cover 15 during installation. There are two adjusting screws 6. The end of the short rod 7 has a convex ball that penetrates the interior of the limiting sleeve 8 and connects with the front threaded sleeve 4. The outer ring surface of the central arc plate 10 is fitted together, and the central arc plate 10 is coaxially arranged with the front clamping ring 11 and the rear clamping ring 12 respectively. The central arc plate 10 serves to transfer the front clamping ring 11 and the rear clamping ring 12. The thickness of the central arc plate 10 is less than the thickness of the front clamping ring 11 and the rear clamping ring 12 respectively. There are two front clamping rings 11 and two rear clamping rings 12. One end of the first spring 9 is fixedly connected to the inner side of the limiting chuck 2, and the other end of the first spring 9 is fixedly connected to the outer ring surface of the central arc plate 10. The second spring 13 connecting the front clamping ring 11 is fixedly connected to the outer ring surface of the front threaded sleeve 4, and the second spring 13 connecting the rear clamping ring 12 is fixedly connected to the outer ring surface of the rear threaded sleeve 3. The arrangement of the two sets of second springs 13 at the front and rear ends serves to assist the front clamping ring 11 in elastically connecting to the front threaded sleeve 4, and to assist the rear clamping ring 12 in elastically connecting to the rear threaded sleeve 3.

[0023] Workflow: Before using the sealing plug in this utility model, first align it with the pre-reserved threaded groove on the front face of the equipment housing 1, and screw the rear threaded sleeve 3 in. The limiting chuck 2 will fit snugly against the equipment housing 1. Next, before passing the power line through the equipment housing 1 and introducing it into the equipment, first insert the rubber ring body 16 into the inside of the combined cover 15, and then pass the line through the combined cover 15 and the rubber ring body 16, so that the line is pre-connected to the combined cover 15. Align it with the inside of the front threaded sleeve 4, and push the line in from front to back in sequence, so that it passes through the inside of the front threaded sleeve 4, the limiting chuck 2, and the rear threaded sleeve 3 in sequence, and is introduced into the equipment. After that, after electrically connecting the line to the electrical components inside the equipment, align it with the outside of the front threaded sleeve 4, and screw the combined cover 15 on to install it, so that it is combined and connected with the front threaded sleeve 4, so that the power line can be connected. The waterproof and dustproof sealing plug for the circuit consists of a limiting chuck 2, a rear threaded sleeve 3, a front threaded sleeve 4, a combined cover 15, and a rubber ring body 16. This sealing plug effectively seals the circuits introduced into the equipment, preventing moisture and dust from entering. After sealing, the limiting chuck 2 and the threaded slot 5 are connected, and the two adjusting screws 6 are simultaneously turned to move the two short rods 7 in the same direction. The convex ball end presses against the central arc plate 10. Once the pressure reaches a certain level, the second spring 13 and the first spring 9 deform, and a set of front clamping rings 11 and a set of rear clamping rings 12 clamp the limiting post circuit, ensuring a tighter connection between the circuit and the sealing plug. This prevents the rubber ring body 16 from shifting or deviating due to pulling during maintenance.

[0024] 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 waterproof and dustproof sealing plug for power lines, comprising a housing (1), characterized in that: A limiting chuck (2) is provided at the middle position of the front end face of the equipment housing (1). The rear end of the limiting chuck (2) is fixedly connected to a rear threaded sleeve (3) that is threaded together with the middle slot of the equipment housing (1). The front end of the limiting chuck (2) is fixedly connected to a front threaded sleeve (4) that is configured to conduct. Threaded slots (5) are provided on both the left and right sides inside the limiting chuck (2). Adjusting screws (6) are threadedly connected to the inner side of the threaded slots (5). Short rods (7) are fixedly connected to the opposite side of the two adjusting screws (6). The short rods (7) are sleeved with a limiting chuck. A limiting sleeve (8) is slidably connected to the disc (2). A first spring (9) is sleeved on the outside of the limiting sleeve (8). A central arc plate (10) is fixedly connected to one side of the limiting sleeve (8) extending into the central slot of the limiting chuck (2). A front clamping ring (11) is fixedly connected to the front end of the central arc plate (10). A rear clamping ring (12) is fixedly connected to the rear end of the central arc plate (10). Flexible pads (14) are glued to the inner surfaces of the rear clamping ring (12) and the front clamping ring (11). A second spring (13) is fixedly connected to the outer ring surfaces of the rear clamping ring (12) and the front clamping ring (11).

2. The waterproof and dustproof sealing plug for power lines according to claim 1, characterized in that: The rear threaded sleeve (3) extends backward through the interior of the middle slot of the equipment housing (1). The length of the rear threaded sleeve (3) is greater than the length of the front threaded sleeve (4). The interior of the rear threaded sleeve (3) is connected to the interior of the reserved central slot in the middle of the limiting chuck (2).

3. The waterproof and dustproof sealing plug for power lines according to claim 1, characterized in that: The external thread of the front threaded sleeve (4) is connected to a combined cover (15). A rubber ring body (16) is inserted into the central slot of the front end face of the combined cover (15). The rubber ring body (16) has a "T" shaped structure.

4. The waterproof and dustproof sealing plug for power lines according to claim 1, characterized in that: There are two adjusting screws (6). The end of the short rod (7) is provided with a convex ball that penetrates the interior of the limiting sleeve (8) and fits against the outer ring surface of the central arc plate (10). The central arc plate (10) is coaxially arranged with the front clamping ring (11) and the rear clamping ring (12).

5. A waterproof and dustproof sealing plug for power lines according to claim 1, characterized in that: The thickness of the central arc plate (10) is less than the thickness of the front clamping ring (11) and the rear clamping ring (12). There are two front clamping rings (11) and two rear clamping rings (12). One end of the first spring (9) is fixedly connected to the inner side of the limiting chuck (2). The other end of the first spring (9) is fixedly connected to the outer ring surface of the central arc plate (10). The second spring (13) connected to the front clamping ring (11) is fixedly connected to the outer ring surface of the front threaded sleeve (4). The second spring (13) connected to the rear clamping ring (12) is fixedly connected to the outer ring surface of the rear threaded sleeve (3).

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