Waterproof plastic part

Abstract

The utility model discloses a waterproof plastic part which comprises a plastic tube, a limiting piece is fixedly installed on the plastic tube, one end of the plastic tube is fixedly connected with a clamping seat, the end, away from the clamping seat, of the plastic tube is fixedly connected with the plastic tube, and the end of the plastic tube is fixedly connected with a positioning seat. A through hole larger than the cable in size is formed in the plastic tube, a sealing seat is fixedly arranged on the outer side of the end of the cable, and a fixing nut is installed on the outer side of the clamping seat. According to the waterproof plastic part, the sealing seat and the positioning seat are positioned and mounted through four groups of positioning sealing grooves and positioning sealing blocks, at the moment, the clamping seat penetrates through a mounting hole in equipment and is fixed through a fixing nut, and the fixing nut and the side wall of the equipment as well as the limiting piece and the side wall of the equipment can be sealed through a rubber pad; therefore, the threading operation of the cable on the equipment is completed, and the sealing waterproof performance between the cable and the equipment is ensured.

Description

Technical Field

[0001] The utility model relates to the field of plastic parts, in particular to a waterproof plastic part. Background Technique

[0002] Plastic, usually also known as plastics, is a polymer material.

[0003] With the advantages of strong plasticity, light weight, good corrosion resistance and insulation, it is used in the field of electrical insulation;

[0004] Plastic is mainly composed of carbon, oxygen, hydrogen, nitrogen and other organic or inorganic elements. The finished product is solid and is in a molten liquid state during the manufacturing process. Therefore, it can be heated by machine to melt it, pressurized to make it flow, and cooled to solidify it, thus forming various shapes. This huge and diverse material group is called plastic.

[0005] The waterproof plastic parts made of plastic are widely used in the field of electronic equipment. For example, at the connection between a wire harness and an electronic equipment box, waterproof plastic parts are needed for connection and sealing. Therefore, we propose a waterproof plastic part to solve the above technical problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a waterproof plastic part to solve the defects mentioned in the above background technique.

[0007] To achieve the above purpose, a waterproof plastic part is provided, including a plastic pipe. A limit piece is fixedly installed on the plastic pipe, and a clamping seat is fixedly connected to one end of the plastic pipe. At the same time, the end of the plastic pipe far from the clamping seat is fixedly connected to the plastic pipe, and the end of the plastic pipe is fixedly connected to a positioning seat. A perforation with a size larger than that of the cable is opened inside the plastic pipe, and a sealing seat is fixedly arranged on the outer side of the end of the cable. A fixing nut is installed on the outer side of the clamping seat.

[0008] Preferably, the limit piece is in a regular hexagon shape, and the center of the limit piece coincides with the center of the circle of the plastic pipe.

[0009] Preferably, the fixing nut is in a regular octagon shape, and a screwing hole adapted to the thread structure size on the outer side of the clamping seat is opened inside the fixing nut. At the same time, the fixing nut is screwed and fixed on the clamping seat.

[0010] Preferably, the axial cross-section of the plastic pipe and the positioning seat is a concentric circle structure, and the axial cross-section of the positioning seat and the sealing seat is a concentric circle structure. At the same time, the sealing seat is clamped inside the positioning seat.

[0011] Preferably, four groups of positioning and sealing grooves are evenly formed inside the positioning seat, and four groups of positioning and sealing blocks are evenly and fixedly arranged on the outer side of the sealing seat. At the same time, the positioning and sealing blocks are in interference fit with the positioning and sealing grooves, and the positioning seat and the sealing seat are positioned and installed through the four groups of positioning and sealing grooves and positioning and sealing blocks.

[0012] Preferably, the positioning and sealing blocks are inserted into the positioning and sealing grooves. The positioning and sealing blocks and the positioning and sealing grooves are both in the shape of a dovetail. At the same time, the sealing seat is an annular structure made of rubber material. A round hole with a size smaller than the diameter of the cable is formed inside the sealing seat, and the cable is inserted through the round hole.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The sealing seat and the positioning seat are positioned and installed through the four groups of positioning and sealing grooves and positioning and sealing blocks. At this time, the clamping seat is passed through the installation hole on the device and fixed through the fixing nut. Sealing can be achieved between the fixing nut and the side wall of the device and between the limiting piece and the side wall of the device through the rubber gasket, so as to complete the threading operation of the cable on the device and ensure the sealing and waterproof performance between the cable and the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a front view schematic diagram of the structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the plastic pipe and its connection structure of the present utility model;

[0016] Figure 3 is the structure of the present utility model Figure 2 bottom view;

[0017] Figure 4 is the structure of the present utility model Figure 1 bottom view.

[0018] Reference numerals in the drawings: 1, cable; 2, fixing nut; 3, clamping seat; 4, limiting piece; 5, plastic pipe; 6, positioning seat; 7, sealing seat; 8, positioning and sealing groove; 9, positioning and sealing block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Please refer to Figures 1-4 , the present utility model provides a waterproof plastic part, including a plastic pipe 5. A limiting piece 4 is fixedly installed on the plastic pipe 5, and one end of the plastic pipe 5 is fixedly connected with a clamping seat 3. At the same time, the end of the plastic pipe 5 far from the clamping seat 3 is fixedly connected with the plastic pipe 5, and the end of the plastic pipe 5 is fixedly connected with a positioning seat 6. A perforation with a size larger than that of the cable 1 is formed inside the plastic pipe 5, and a sealing seat 7 is fixedly arranged on the outer side of the end of the cable 1. The fixing nut 2 is installed on the outer side of the clamping seat 3.

[0020] Working principle: When in use, first sleeved the sealing seat 7 outside the cable 1, and position and install the sealing seat 7 and the positioning seat 6 through four groups of positioning and sealing grooves 8 and positioning and sealing blocks 9. At this time, pass the clamping seat 3 through the mounting hole on the device and fix it with the fixing nut 2. The space between the fixing nut 2 and the side wall of the device and the space between the limiting piece 4 and the side wall of the device can be sealed by rubber gaskets, so as to complete the threading operation of the cable 1 on the device and ensure the sealing and waterproof performance between the cable 1 and the device.

[0021] As a preferred embodiment, the limiting piece 4 is arranged in a regular hexagon, and the center of the limiting piece 4 coincides with the center of the circle of the plastic pipe 5.

[0022] The fixing nut 2 is arranged in a regular octagon, and a screwing hole adapted to the outer thread structure size of the clamping seat 3 is opened inside the fixing nut 2. At the same time, the fixing nut 2 is screwed and fixed on the clamping seat 3.

[0023] The fixing nut 2 is arranged in a regular octagon, which is convenient for manual rotation operation of the fixing nut 2;

[0024] As a preferred embodiment, the axial cross-sections of the plastic pipe 5 and the positioning seat 6 are concentric circle structures, and the axial cross-sections of the positioning seat 6 and the sealing seat 7 are concentric circle structures. At the same time, the sealing seat 7 is clamped inside the positioning seat 6.

[0025] Four groups of positioning and sealing grooves 8 are evenly opened inside the positioning seat 6, and four groups of positioning and sealing blocks 9 are evenly fixed on the outside of the sealing seat 7. At the same time, the positioning and sealing blocks 9 and the positioning and sealing grooves 8 are in interference fit, and the positioning seat 6 and the sealing seat 7 are positioned and installed through four groups of positioning and sealing grooves 8 and positioning and sealing blocks 9.

[0026] The sealing seat 7 is clamped in the sealing groove 8 opened inside the positioning seat 6 through four groups of positioning and sealing blocks 9 on the outside. The positioning and sealing grooves 8 and the positioning and sealing blocks 9 are sealed and connected to ensure the waterproof performance between the cable 1 and the positioning seat 6.

[0027] As a preferred embodiment, the positioning and sealing block 9 is inserted inside the positioning and sealing groove 8, and both the positioning and sealing block 9 and the positioning and sealing groove 8 are in a dovetail shape structure. At the same time, the sealing seat 7 is a ring structure made of rubber material, a round hole with a size smaller than the diameter of the cable 1 is opened inside the sealing seat 7, and the cable 1 is inserted through the round hole.

Claims

1. A waterproof plastic part, comprising a plastic tube (5), characterized in that: The plastic tube (5) is fixedly mounted with a limiting plate (4), and one end of the plastic tube (5) is fixedly connected to a mounting seat (3), while the end of the plastic tube (5) away from the mounting seat (3) is fixedly connected to the plastic tube (5), and the end of the plastic tube (5) is fixedly connected to a positioning seat (6), the inside of the plastic tube (5) is provided with a through hole larger than the cable (1), and a sealing seat (7) is fixedly arranged on the outside of the end of the cable (1), and a fixing nut (2) is installed on the outside of the mounting seat (3).

2. A waterproof plastic part according to claim 1, characterized in that: The limiting piece (4) is arranged in a regular hexagon, and the center of the limiting piece (4) coincides with the center of the circle of the plastic tube (5).

3. A waterproof plastic part according to claim 1, characterized in that: The fixing nut (2) is in the shape of a regular octagon, and a screw hole matching the size of the thread structure on the outside of the clamping seat (3) is provided inside the fixing nut (2), and the fixing nut (2) is screwed and fixed on the clamping seat (3).

4. A waterproof plastic part according to claim 1, characterized in that: The axial cross-sections of the plastic tube (5) and the positioning seat (6) are concentric circle structures, and the axial cross-sections of the positioning seat (6) and the sealing seat (7) are concentric circle structures, and the sealing seat (7) is clamped inside the positioning seat (6).

5. A waterproof plastic part according to claim 4, characterized in that: Four groups of positioning sealing grooves (8) are evenly arranged inside the positioning seat (6), and four groups of positioning sealing blocks (9) are evenly fixedly arranged on the outer side of the sealing seat (7). At the same time, the positioning sealing blocks (9) and the positioning sealing grooves (8) are interference-fitted, and the positioning seat (6) and the sealing seat (7) are positioned and installed through the four groups of positioning sealing grooves (8) and the positioning sealing blocks (9).

6. A waterproof plastic part according to claim 5, characterized in that: The positioning sealing block (9) is inserted into the interior of the positioning sealing groove (8), and the positioning sealing block (9) and the positioning sealing groove (8) are both dovetail structures. At the same time, the sealing seat (7) is an annular structure made of rubber material. A circular hole with a size smaller than the diameter of the cable (1) is opened inside the sealing seat (7), and the cable (1) is inserted into the circular hole.

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