Dustproof and waterproof sealing sleeve for incoming cable of power distribution cabinet

Abstract

The utility model discloses a dustproof and waterproof sealing sleeve of a power distribution cabinet cable inlet wire, and belongs to the field of power distribution cabinet cable inlet wire sealing. A dustproof and waterproof sealing sleeve for incoming cables of a power distribution cabinet comprises threaded rings which are symmetrically arranged on two sides of a side plate and correspond to incoming cable holes; the supporting rings are symmetrically arranged on the two sides of the side plates, and the supporting rings are in threaded connection with the threaded rings; the lantern ring is rotationally connected to the inner side of the supporting ring in a sealed mode, and the lantern ring corresponds to the wire rod; dust and rainwater are prevented from entering, meanwhile, the wire rod can be supported through the lantern ring, and the situation that the sealing effect is reduced due to the fact that the wire rod extrudes the rubber ring under the action of gravity is prevented.

Description

Technical Field

[0001] This utility model relates to the field of cable inlet sealing technology for power distribution cabinets, and in particular to a dustproof and waterproof sealing sleeve for cable inlets of power distribution cabinets. Background Technology

[0002] In modern power systems, distribution cabinets, as key equipment for power distribution and control, are widely used in various fields. Distribution cabinets contain numerous precision electrical components, which have high requirements for the operating environment, especially being extremely sensitive to dust and moisture. Once dust or moisture enters the distribution cabinet, it may cause short circuits, corrosion, and other faults in electrical components, seriously affecting the normal operation of the distribution cabinet and even causing safety accidents, especially the sealing of the cable entry point.

[0003] Currently, when sealing the cable inlet, a rubber sealing sleeve is used to clip onto the cable and then into the inlet hole to achieve dust and water protection. However, in actual use, thicker cables have a certain weight, or when laying cables downwards, the cable exerts downward pressure on the sealing sleeve. After a period of use, this can damage the sealing effect of the sealing sleeve. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a dustproof and waterproof sealing sleeve for the cable inlet of a power distribution cabinet that can overcome or at least partially solve the above problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dustproof and waterproof sealing sleeve for the cable inlet of a power distribution cabinet includes: a threaded ring symmetrically disposed on both sides of a side plate, with the threaded ring corresponding to the cable inlet hole; a support ring symmetrically disposed on both sides of the side plate, with the support ring threadedly connected to the threaded ring; a collar rotatably connected to the inner side of the support ring, with the collar corresponding to the cable; and a rubber ring fixedly disposed on the inner side of the support ring. When the support ring is threadedly connected to the threaded ring, the end of the threaded ring squeezes the rubber ring, causing the rubber ring to compress the cable to form a seal.

[0007] To facilitate the installation of the threaded rings, a connecting ring is further provided between the two threaded rings. The connecting ring is fixedly connected to one of the threaded rings and is threadedly connected to the other threaded ring.

[0008] Furthermore, the connecting ring is fixedly connected to a threaded ring near the outer side of the side plate.

[0009] Furthermore, a compression plate is fixedly connected to the side of the rubber ring near the threaded ring.

[0010] To facilitate the protection of the wire, preferably, the outer side of the wire is covered with a rubber sleeve.

[0011] To facilitate the installation of the collar, a first gap is further provided between the rubber sleeve and the inner wall of the collar.

[0012] To facilitate securing the wire to the collar, the collar is further provided with an inclined surface on one side, an external thread on the inclined surface, and symmetrical notches on the collar, and a locking nut is threaded to one end of the collar.

[0013] Furthermore, a first sealing ring corresponding to the locking nut is fixedly connected to the collar, and a rubber block corresponding to the notch is fixedly connected to the inner wall of the first sealing ring.

[0014] Preferably, a second sealing ring corresponding to the side plate is fixedly connected to the support ring.

[0015] To further improve the sealing effect of the rubber ring, an arc-shaped protrusion is provided on the inner edge of the rubber ring.

[0016] Compared with the prior art, this utility model provides a dustproof and waterproof sealing sleeve for the cable inlet of a power distribution cabinet, which has the following beneficial effects:

[0017] 1. The dustproof and waterproof sealing sleeve for the cable inlet of this distribution cabinet is achieved by connecting the support ring to the threaded ring. At this time, the threaded ring squeezes the rubber ring, causing the rubber ring to come into contact with the wire, forming a sealed space. This achieves a relative seal between the inlet hole and the wire, preventing dust and rainwater from entering. At the same time, the sleeve can support the wire, preventing the wire from squeezing the rubber ring under the action of gravity, which would reduce the sealing effect.

[0018] 2. The dustproof and waterproof sealing sleeve for the cable inlet of the distribution cabinet is provided by setting a compression plate on one side of the rubber ring. When the support ring is rotated, the compression plate fits against the threaded ring, preventing the rubber ring from being damaged by friction from the threaded ring.

[0019] 3. The dustproof and waterproof sealing sleeve for the cable inlet of the distribution cabinet, after the support ring is installed, the locking nut is threaded onto the external thread of the inclined surface. During the threaded connection, one end of the sleeve gradually clamps the wire to fix it, thereby effectively preventing the wire from moving left and right and affecting the sealing effect of the rubber ring.

[0020] The parts of this device not described herein are the same as or can be implemented using existing technologies. This utility model prevents dust and rainwater from entering, and at the same time, the collar can support the wire, preventing the wire from squeezing the rubber ring under the action of gravity, which would reduce the sealing effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a dustproof and waterproof sealing sleeve for the cable inlet of a power distribution cabinet proposed in this utility model;

[0022] Figure 2 This is a cross-sectional schematic diagram of a dustproof and waterproof sealing sleeve for the cable inlet of a power distribution cabinet proposed in this utility model;

[0023] Figure 3 This utility model proposes a dustproof and waterproof sealing sleeve for the cable inlet of a power distribution cabinet. Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a schematic diagram showing the unfolded structure of a dustproof and waterproof sealing sleeve for the cable inlet of a power distribution cabinet, as proposed in this utility model.

[0025] In the diagram: 1. Side plate; 101. Inlet hole; 102. Wire; 103. Rubber sleeve; 2. Threaded ring; 201. Connecting ring; 3. Collar; 301. Inclined surface; 302. External thread; 303. Groove; 304. First sealing ring; 305. Rubber block; 306. Locking nut; 307. First gap; 4. Support ring; 401. Second sealing ring; 402. Rubber ring; 403. Extrusion plate; 404. Arc-shaped protrusion. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1:

[0028] Reference Figures 1-4 A dustproof and waterproof sealing sleeve for the cable inlet of a power distribution cabinet includes: a threaded ring 2, symmetrically arranged on both sides of a side plate 1, and the threaded ring 2 corresponding to the inlet hole 101; a support ring 4, symmetrically arranged on both sides of the side plate 1, and the support ring 4 threadedly connected to the threaded ring 2; a collar 3, rotatably connected to the inner side of the support ring 4, and the collar 3 corresponding to the wire 102; and a rubber ring 402, fixedly arranged inside the support ring 4. When the support ring 4 is threadedly connected to the threaded ring 2, the end of the threaded ring 2 squeezes the rubber ring 402, causing the rubber ring 402 to deform and squeeze the wire 102 to form a seal.

[0029] A connecting ring 201 is provided between the two threaded rings 2. The connecting ring 201 is fixedly connected to one of the threaded rings 2 and is threadedly connected to the other threaded ring 2.

[0030] In a specific embodiment, the side plate 1 is located on one side of the power distribution cabinet inlet. The side plate 1 has multiple inlet holes 101 for the entry and exit of wires 102. During installation, two opposite threaded rings 2 are first placed on both sides of the inlet hole 101. Then, the two threaded rings 2 are clamped and fixed on both sides of the side plate 1 by the connecting ring 201, and the axis of the threaded ring 2 is collinear with the axis of the inlet hole 101. When threading wires from the outside into the distribution cabinet, first put a collar 3 with a support ring 4 on the wire 102, then pass the wire 102 through the two threaded rings 2. After determining the position of the wire 102, rotate the support ring 4 to connect the support ring 4 to the threaded ring 2. At this time, the threaded ring 2 squeezes the rubber ring 402, causing the rubber ring 402 to deform and contact the wire 102, forming a sealed space. This achieves a relative seal between the wire inlet hole 101 and the wire 102, preventing dust and rainwater from entering. At the same time, the collar 3 can support the wire 102, preventing the wire 102 from squeezing the rubber ring 402 under the action of gravity, which would reduce the sealing effect.

[0031] The connecting ring 201 is fixedly connected to the threaded ring 2 near the outer side of the side plate 1.

[0032] In practical applications, the connecting ring 201 is fixedly connected to the outer threaded ring 2, thereby reducing the gap of the outer mechanical connection.

[0033] A compression plate 403 is fixedly connected to the side of the rubber ring 402 near the threaded ring 2.

[0034] By providing a compression plate 403 on one side of the rubber ring 402, the compression plate 403 fits against the threaded ring 2 when the support ring 4 is rotated, preventing the rubber ring 402 from being damaged by friction from the threaded ring 2.

[0035] A rubber sleeve 103 is provided on the outer side of the wire 102.

[0036] A rubber sleeve 103 is fitted over the outside of the wire 102 to ensure the flatness of the outside of the wire 102. The rubber sleeve 103 can contact the rubber ring 402 to improve its sealing performance and protect the outer wall of the wire 102.

[0037] There is a first gap 307 between the rubber sleeve 103 and the inner wall of the collar 3.

[0038] By setting a first gap 307 between the rubber sleeve 103 and the collar 3, it is convenient to install the collar 3.

[0039] Example 2:

[0040] Reference Figures 1-4A dustproof and waterproof sealing sleeve for the cable inlet of a power distribution cabinet is basically the same as that in Embodiment 1. Further, an inclined surface 301 is provided on one side of the collar 3, an external thread 302 is provided on the inclined surface 301, and notches 303 are symmetrically provided on the collar 3. A locking nut 306 is threadedly connected to one end of the collar 3.

[0041] In a specific embodiment, in order to facilitate fixing the wire 102 to the collar 3, after the support ring 4 is installed, the locking nut 306 is threaded onto the external thread 302 of the inclined surface 301. During the threaded connection, one end of the collar 3 gradually clamps the wire 102 to fix the wire 102, thereby effectively preventing the wire 102 from moving left and right and affecting the sealing effect of the rubber ring 402.

[0042] A first sealing ring 304 corresponding to the locking nut 306 is fixedly connected to the collar 3, and a rubber block 305 corresponding to the notch 303 is fixedly connected to the inner wall of the first sealing ring 304.

[0043] A second sealing ring 401 corresponding to the side plate 1 is fixedly connected to the support ring 4.

[0044] The inner edge of the rubber ring 402 is provided with an arc-shaped protrusion 404.

[0045] In practical applications, the installation of a second sealing ring 401 on one side of the support ring 4 and a first sealing ring 304 on the collar 3 are used to seal the connection gap. Furthermore, by setting a rubber block 305 in the notch 303, when the locking nut 306 presses the end of the collar 3, the rubber block 305 is compressed. The compressed rubber block 305 presses the rubber sleeve 103, making the rubber sleeve 103 fit more closely and tightly with the wire 102, thereby effectively improving its sealing performance.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dust and water proof sealing sleeve for power distribution cabinet cable entry, characterized in that, include: Threaded rings (2) are symmetrically arranged on both sides of the side plate (1), and the threaded rings (2) correspond to the inlet holes (101); Support rings (4) are symmetrically arranged on both sides of the side plate (1), and the support rings (4) are threadedly connected to the threaded rings (2); A collar (3) is rotatably and sealingly connected to the inner side of the support ring (4), and the collar (3) corresponds to the wire (102); A rubber ring (402) is fixedly disposed inside the support ring (4). When the support ring (4) is threadedly connected to the threaded ring (2), the end of the threaded ring (2) squeezes the rubber ring (402), causing the rubber ring (402) to deform and squeeze the wire (102) to form a sealed state.

2. A dust and water proof sealing sleeve for power distribution cabinet cable entry according to claim 1, characterized in that, A connecting ring (201) is provided between the two threaded rings (2). The connecting ring (201) is fixedly connected to one of the threaded rings (2) and is threadedly connected to the other threaded ring (2).

3. The dustproof and waterproof sealing sleeve for the cable inlet of a power distribution cabinet according to claim 2, characterized in that, The connecting ring (201) is fixedly connected to the threaded ring (2) near the outside of the side plate (1).

4. The dustproof and waterproof sealing sleeve for power distribution cabinet cable incoming line according to claim 1, characterized in that, The rubber ring (402) is fixedly connected to an extrusion plate (403) on the side near the threaded ring (2).

5. The dust and water proof sealing sleeve for power distribution cabinet cable entry according to claim 1, characterized in that, The outer side of the wire (102) is fitted with a rubber sleeve (103).

6. A dust and water proof sealing sleeve for power distribution cabinet cable entry according to claim 5, characterized in that, There is a first gap (307) between the rubber sleeve (103) and the inner wall of the collar (3).

7. A dust and water proof sealing cover for power distribution cabinet cable entry according to claim 1, characterized in that, The collar (3) has an inclined surface (301) on one side, an external thread (302) on the inclined surface (301), and notches (303) symmetrically arranged on the collar (3). A locking nut (306) is threaded to one end of the collar (3).

8. A dust and water proof sealing sleeve for power distribution cabinet cable entry according to claim 7, characterized in that, The collar (3) is fixedly connected to a first sealing ring (304) corresponding to the locking nut (306), and the inner wall of the first sealing ring (304) is fixedly connected to a rubber block (305) corresponding to the notch (303).

9. A dust and water proof sealing cover for power distribution cabinet cable entry according to claim 1, characterized in that, A second sealing ring (401) corresponding to the side plate (1) is fixedly connected to the support ring (4).

10. The dust and water proof sealing sleeve for power distribution cabinet cable entry according to claim 1, characterized in that, The inner edge of the rubber ring (402) is provided with an arc-shaped protrusion (404).

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