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CN-224204755-U - Waterproof protection device for cable connector

CN224204755UCN 224204755 UCN224204755 UCN 224204755UCN-224204755-U

Abstract

The utility model discloses a waterproof protection device for a cable joint, which belongs to the technical field of waterproof protection of cable joints, wherein an annular sinking groove is formed in the middle section of the inner wall of a joint pipe, an expansion air bag is connected in the annular sinking groove, filling protection balls are filled in the expansion air bag and the annular sinking groove, the expansion air bag is expanded through the filling protection balls, and further, cables inside the joint pipe are extruded to realize the waterproof protection of the interior, a cable chuck is arranged at the front end of the joint pipe, a plurality of gaps are formed in the front end of the cable chuck, and sealing rings are arranged at the cable chuck and the gaps. The protection ball fills the annular sinking groove and is contacted with the expansion air bag. The air bag is pressed and expanded to squeeze the cable to form a tight waterproof layer, so that the safety of the cable joint is ensured, and the invasion of moisture and harmful substances is prevented. The U-shaped design of the inflatable air bag improves the inflation efficiency, optimizes the space and makes the device more compact and efficient. The design reduces the volume weight, does not sacrifice the waterproof effect, and the cable joint installation of being convenient for uses.

Inventors

  • ZHAI XINCHUN
  • Ji Shengjia
  • ZHAI HONGTAO

Assignees

  • 滨州昂内斯用电安全服务有限公司

Dates

Publication Date
20260505
Application Date
20250410

Claims (6)

  1. 1. The waterproof protection device for the cable connector comprises a connector pipe (1), a fixing head (2) and a sealing plug head (8), wherein the fixing head (2) is positioned at the middle section of the connector pipe (1), and threads are arranged on the outer wall of the connector pipe (1), and the waterproof protection device is characterized in that an annular sinking groove (5) is formed in the middle section of the inner wall of the connector pipe (1), an expansion air bag (6) is connected in the groove of the annular sinking groove (5), the expansion air bag (6) and the annular sinking groove (5) are filled with filling protection balls (7), the expansion air bag (6) is expanded through the filling protection balls (7), and then an internal cable of the connector pipe (1) is extruded, so that internal waterproof protection is realized; The front end of joint pipe (1) is equipped with cable chuck (3), a plurality of breach (4) have been seted up to the front end of cable chuck (3), breach (4) department is equipped with sealing washer (12), the front end of joint pipe (1) is connected with fastening pullover (11), and fastening pullover (11) rotate and realize tightening up of sealing washer (12), and then realize the waterproof protection of this department.
  2. 2. The waterproof protection device for the cable joint according to claim 1, wherein the corner of the annular sinking groove (5) is arc-shaped, the annular sinking groove (5) extends into the fixing head (2), a through hole is formed in the side wall of the fixing head (2), the through hole is communicated with the annular sinking groove (5), threads are arranged at the opening of the through hole, and a sealing ring is arranged on the inner wall of the through hole.
  3. 3. The waterproof protection device for the cable joint is characterized in that the cross section of the sealing type blocking head (8) is of a T-shaped design, a sealing ring is sleeved on the sealing type blocking head (8), the sealing type blocking head (8) is inserted into the fixing head (2) to form a through hole and is connected with the fixing head (2) through threads, and a cross mouth is formed in the outer end of the sealing type blocking head (8).
  4. 4. A waterproof protection device for a cable joint is characterized in that a fastening nut (9) and a sealing gasket (10) are sleeved at the rear end of a joint pipe (1), and the fastening nut (9) is rotated to drive the sealing gasket (10) to abut against a fixed head (2).
  5. 5. The waterproof protection device for the cable joint according to claim 4, wherein the fixing head (2) and the joint pipe (1) are integrally designed, the cable clamp (3) is a plastic clamp, the cable clamp (3) is fixed on the joint pipe (1) in a hot melting mode, and the notches (4) are distributed at the opening of the cable clamp (3) in an annular mode.
  6. 6. A waterproof protection device for a cable joint according to claim 5, characterized in that the filling protection ball (7) is made of biocompatible SAP material, the cross section of the inflatable air bag (6) is U-shaped, and the inflatable air bag (6) is fixed on the fixing head (2) and the joint pipe (1) through an adhesive.

Description

Waterproof protection device for cable connector Technical Field The utility model relates to the technical field of waterproof protection of cable joints, in particular to a waterproof protection device of a cable joint. Background The waterproof protection device for the cable joint mainly comprises the waterproof joint for the cable and a matched assembly thereof, wherein the waterproof joint for the cable plays a key role in a plurality of fields, is a specially designed connecting device, and is not only used for connecting the cable, but also has excellent waterproof performance. By special sealing design and using high-quality waterproof materials, the cable waterproof joint can be kept in a dry state for a long time in a wet environment, and circuit faults or equipment damage caused by water infiltration are avoided. The optimized structural design simplifies the installation process, reduces the tool requirement, improves the working efficiency and reduces the error probability. In the in-service use, the water vapor seeps into the cable joint waterproof protection device after long-time use to influence the protection performance, once the water vapor seeps into the cable joint waterproof protection device in the form of gas or liquid, the water vapor can be adsorbed on the surface of an insulator and slowly seeps into the insulator, so that the resistivity is reduced, the electrical strength is reduced, and the insulation performance is reduced or even fails. This can lead to cable connectors being prone to faults such as electrical leakage, short circuits and the like during operation, thereby affecting the stability and safety of the overall power system. The water penetrating into the waterproof protection device of the cable joint can cause corrosion and adhesion of the connecting structure (such as threads, buckles and the like) of the connector, so that the subsequent disassembly becomes difficult or even impossible. In addition, long-term water penetration and absorption can lead to expansion and deformation of the insulator, displacement and tolerance variation, and further exacerbate corrosion and adhesion problems. The infiltration of water vapor negatively affects the service life of the cable joint waterproof protection device. Long-term water vapor erosion can cause aging, deformation and even cracking of the material of the protection device, thereby losing the function of waterproof protection. This not only reduces the life of the protection device, but also poses a threat to the safe and stable operation of the power system. Disclosure of utility model The utility model mainly aims to provide a waterproof protection device for a cable joint, which can effectively solve the problems in the background technology. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: The waterproof protection device for the cable connector comprises a connector pipe, a fixing head and a sealing plug head, wherein the fixing head is positioned at the middle section of the connector pipe, and threads are arranged on the outer wall of the connector pipe; The middle section of the inner wall of the joint pipe is provided with an annular sinking groove, an expansion air bag is connected in the groove of the annular sinking groove, the expansion air bag and the annular sinking groove are filled with filling protection balls, the expansion air bag is expanded through the filling protection balls, and then an inner cable of the joint pipe is extruded, so that the inner waterproof protection is realized; The front end of the joint pipe is provided with a cable clamp head, the front end of the cable clamp head is provided with a plurality of gaps, sealing rings are arranged at the cable clamp head and the gaps, the front end of the joint pipe is connected with a fastening sleeve head, the fastening sleeve head rotates to tighten the sealing rings, and waterproof protection at the joint is further achieved. As a preferable scheme of the utility model, the corners of the annular sinking grooves are arc-shaped, the annular sinking grooves extend into the fixing head, the side wall of the fixing head is provided with a through hole which is communicated with the annular sinking grooves, the opening of the through hole is provided with threads, and the inner wall of the through hole is provided with a sealing ring; As a preferable scheme of the utility model, the cross section of the sealing type plugging head is in a T-shaped design, a sealing ring is sleeved on the sealing type plugging head, the sealing type plugging head is inserted into the fixing head to form a through hole, and is connected with the fixing head through threads, and the outer end of the sealing type plugging head is provided with a cross port; As the preferable scheme of the utility model, the rear end of the joint pipe is sleeved with a fastening nut and a sealing gasket, and the fastening n