Reinforced silicone rubber waterproof plug with built-in reinforcing ribs

Abstract

A reinforced silicone rubber waterproof plug with built-in reinforcing ribs effectively solves the problem of poor sealing performance and comprises a body, a wire harness hole vertically penetrating through the body, reinforcing rings fixed to the upper end face and the lower end face of the body, the reinforcing ribs arranged in the body and the reinforcing rings, and an outer sealing body fixed to the middle of the body. A plurality of outer sealing rings are evenly arranged on the outer edge face of the outer sealing body, a semi-annular groove is formed in the body and communicated with the wire harness hole, an arc-shaped check block is connected in the semi-annular groove in a left-right sliding mode, a cavity is formed in the outer sealing body, a guide rod is connected in the cavity in a left-right sliding mode, and the right end of the guide rod is fixedly connected with the left end of the arc-shaped check block. A limiting block is fixed at the left end of the guide rod, a spring located in the cavity is sleeved on the guide rod, the spring is located on the right side of the limiting block, a screw in the horizontal direction is in threaded connection with the outer sealing ring, and a hemisphere is fixed at the right end of the screw and abuts against the left end face of the limiting block.

Description

Technical Field

[0001] The utility model belongs to the technical field of seals, and particularly relates to a reinforced silicone rubber waterproof plug with an internal reinforcing rib. Background Art

[0002] A waterproof plug is a common sealed connection device, often used in power plants, telecommunication networks, automobiles or other automated electrical appliances to improve the waterproof performance of wire harnesses. A conventional waterproof plug is provided with a wire harness hole. When the wire harness passes through the wire harness hole, the waterproof plug deforms, thereby squeezing the wire harness, so that the waterproof plug and the wire harness are sealed and fixed; viewed from the cross-sectional direction, since the waterproof plug vertically squeezes the wire harness, during long-term use, looseness will occur between the wire harness and the waterproof plug, thus affecting the sealing performance of the waterproof plug. Content of the Utility Model

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a reinforced silicone rubber waterproof plug with an internal reinforcing rib, effectively solving the problem of poor sealing performance.

[0004] The technical solution for solving the technical problem is: it includes a body, a wire harness hole runs through the body up and down, reinforcing rings are fixed on the upper and lower end faces of the body, reinforcing ribs are built in both the body and the reinforcing rings, an outer seal is fixed at the middle position of the body, a plurality of outer sealing rings are evenly arranged on the outer edge surface of the outer seal, a semi-circular groove is arranged in the body, the semi-circular groove is communicated with the wire harness hole, an arc-shaped block is slidably connected left and right in the semi-circular groove, a cavity is arranged in the outer seal, a guide rod is slidably connected left and right in the cavity, the right end of the guide rod is fixedly connected with the left end of the arc-shaped block, a limit block is fixed at the left end of the guide rod, a spring is sleeved on the guide rod and located inside the cavity on the right side of the limit block, a horizontally oriented screw is threadedly connected to the outer sealing ring, a hemispherical body is fixed at the right end of the screw, and the hemispherical body abuts against the left end face of the limit block.

[0005] Preferably, the screw is a set screw.

[0006] Preferably, the cross-section of the guide rod is polygonal.

[0007] The utility model has the following advantages compared with traditional devices: the structure is ingenious. By rotating the screw thread, the screw drives the hemispherical body to spiral to the right. The hemispherical body abuts against the limit block, with a small contact area, reducing friction. The hemispherical body drives the limit block and the guide rod as a whole to slide to the right. The guide rod drives the arc-shaped block to squeeze the wire harness, fixing the wire harness in the limit hole, ensuring the stability of the wire harness, preventing the wire harness from loosening, and thus improving the sealing performance of the waterproof plug. Threaded connection has self-locking property, high stability, simple operation, convenient and practical. Reversing the screw, under the action of the spring, the guide rod and the arc-shaped block reset, facilitating the separation of the waterproof plug from the wire harness, and the disassembly and assembly are convenient. Description of the Drawings

[0008] Figure 1 It is a schematic diagram of the front view of the present utility model;

[0009] Figure 2 is Figure 1 a schematic diagram of the partial enlargement at A in

[0010] Figure 3 a schematic diagram of the three-dimensional structure of the body and the arc-shaped stopper in the present utility model;

[0011] Figure 4 is a schematic diagram of the three-dimensional structure of the screw in the present utility model.

[0012] Reference numerals: 1, body; 2, wire harness hole; 3, reinforcing ring; 4, reinforcing rib; 5, outer seal body; 6, outer seal ring; 7, semi-circular groove; 8, arc-shaped stopper; 9, cavity; 10, guide rod; 11, limiting block; 12, spring; 13, screw; 14, hemispherical body. Specific embodiments

[0013] The following further elaborates on the specific embodiments of the present utility model with reference to the accompanying drawings.

[0014] Consisting of Figures 1 to 4 as shown, a reinforced silicone rubber waterproof plug with built-in reinforcing ribs includes a body 1, a wire harness hole 2 runs through the body 1 up and down, reinforcing rings 3 are fixed on the upper and lower end faces of the body 1, reinforcing ribs 4 are built into both the body 1 and the reinforcing rings 3, an outer seal body 5 is fixed at the middle position of the body 1, a plurality of outer seal rings 6 are evenly arranged on the outer edge surface of the outer seal body 5, a semi-circular groove 7 is provided in the body 1, the semi-circular groove 7 is communicated with the wire harness hole 2, an arc-shaped stopper 8 is slidably connected left and right in the semi-circular groove 7, a cavity 9 is provided in the outer seal body 5, a guide rod 10 is slidably connected left and right in the cavity 9, the right end of the guide rod 10 is fixedly connected to the left end of the arc-shaped stopper 8, a limiting block 11 is fixed at the left end of the guide rod 10, a spring 12 is sleeved on the guide rod 10 and is located on the right side of the limiting block 11, a screw 13 in the horizontal direction is threadedly connected to the outer seal ring 6, a hemispherical body 14 is fixed at the right end of the screw 13, and the hemispherical body 14 abuts against the left end face of the limiting block 11.

[0015] In order to prevent the screw 13 from being exposed outside the outer seal body 5 and ensure the sealing effect of the outer seal body 5, the screw 13 is a set screw.

[0016] In order to ensure the smoothness of the left and right sliding of the guide rod 10 in the body 1, the cross-section of the guide rod 10 is polygonal.

[0017] When the utility model is in use, the wire harness is passed through the wire harness hole 2. In order to ensure the positioning effect of the wire harness in the wire harness hole 2, the screw 13 is tightened. The screw 13 drives the hemispherical body 14 to rotate rightward in a spiral manner. The hemispherical body 14 pushes the limiting block 11 and the guide rod 10 to slide rightward as a whole. The structure of the hemispherical body 14 can reduce the friction force and extend the service life of the limiting block 11. The limiting block 11 compresses the spring 12 rightward, and the guide rod 10 drives the arc-shaped block 8 to slide rightward. Then the arc-shaped block 8 can squeeze the wire harness and fix the wire harness inside the wire harness hole 2. The clamping effect is good, the stability of the wire harness is improved, and loosening between the waterproof plug and the wire harness is prevented. The outer sealing ring 6 is used for sealing. The outer sealing body 5 is made of silicone rubber, and the sealing effect is good, which helps the elastic sealing of the outer sealing ring 6. Reinforcing ribs 4 are built in both the body 1 and the reinforcing ring 3, which strengthens the strength of the body 1 and the head and tail parts of the body 1, ensures that the body 1 is not easily broken, is safe and stable, and is durable.

[0018] When it is necessary to remove the waterproof plug, the screw 13 is reversed. The screw 13 drives the hemispherical body 14 to move leftward in a spiral manner. Under the reset action of the spring 12, the limiting block 11 drives the guide rod 10 to slide leftward. The guide rod 10 drives the arc-shaped block 8 to reset. The arc-shaped block 8 retracts into the semi-circular groove 7, and the arc-shaped block 8 disengages from the wire harness. Then the wire harness can be pulled out from the wire harness hole 2. The operation is simple and the disassembly and assembly are convenient.

[0019] This embodiment does not make any formal restrictions on the shape, material, structure, etc. of the present utility model. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model all belong to the protection scope of the technical solution of the present utility model.

Claims

1. A reinforced silicone rubber waterproof plug with built-in reinforcing ribs, characterized in that, It includes a body (1) with a wire harness hole (2) running through it vertically. Reinforcing rings (3) are fixed to the upper and lower end faces of the body (1). Reinforcing ribs (4) are built into both the body (1) and the reinforcing rings (3). An outer seal body (5) is fixed at the middle position of the body (1). A plurality of outer seal rings (6) are evenly arranged on the outer edge surface of the outer seal body (5). A semi-circular groove (7) is provided inside the body (1), and the semi-circular groove (7) communicates with the wire harness hole (2). An arc-shaped block (8) is slidably connected left and right in the semi-circular groove (7). A cavity (9) is provided inside the outer seal body (5), and a guide rod (10) is slidably connected left and right in the cavity (9). The right end of the guide rod (10) is fixedly connected to the left end of the arc-shaped block (8). A limit block (11) is fixed to the left end of the guide rod (10). A spring (12) is sleeved on the guide rod (10) and is located inside the cavity (9). The spring (12) is located on the right side of the limit block (11). A horizontally oriented screw (13) is threadedly connected to the outer seal ring (6). A hemispherical body (14) is fixed to the right end of the screw (13), and the hemispherical body (14) abuts against the left end face of the limit block (11).

2. The reinforced silicone rubber waterproof plug with built-in reinforcing ribs according to claim 1, characterized in that, The screw (13) is a set screw.

3. The reinforced silicone rubber waterproof plug with built-in reinforcing ribs according to claim 1, characterized in that, The cross-section of the guide rod (10) is polygonal.

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