CN218732845U

CN218732845U - Flexible bending insulation shield of cable terminal connector

Info

Publication number: CN218732845U
Application number: CN202222747693.3U
Authority: CN
Inventors: 高立宝; 谈钊; 牛子稷; 张冰; 孙溪文
Original assignee: State Grid Corp of China SGCC; State Grid Tianjin Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; State Grid Tianjin Electric Power Co Ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-03-24
Anticipated expiration: 2032-10-19

Abstract

The utility model discloses a flexible bending insulation protective cover of a cable terminal joint, which comprises an insulation sleeve made of flexible material, wherein one end of the insulation sleeve is closed, and the other end is opened and axially inserted into the cable terminal joint; the opening end of the insulating sleeve is coaxially and fixedly provided with a damping ring, and a plurality of elastic damping shifting pieces extending in the radial direction are compositely bonded on the circumferential inner wall of the damping ring; the elastic damping shifting piece is made of flexible materials, and the free end of the elastic damping shifting piece is elastically supported and connected to the cable sheath. The insulating protective cover can be directly sleeved in a cable terminal, is simple and convenient to operate and high in safety, enables workers to complete operation in a time-saving and labor-saving mode, and greatly improves operation efficiency.

Description

Flexible bending insulation shield of cable terminal connector

Technical Field

The utility model relates to a cable maintenance technical field especially relates to a flexible bending insulation guard shield of cable termination joint.

Background

With the rapid development of society, more and more user transformers and integrated transformers are connected into a power distribution network. At present, most of user transformers or comprehensive transformers are connected with an isolating switch or a drop-out fuse through cable heads, when the transformers need to be overhauled, in order to reduce large-area power failure of users and improve power supply reliability, the load of the transformers to be detected is only stopped in an electrified ignition mode generally, and then overhauling operation is completed.

The prior art has the defects that the electrified fire-picking needs to shield the three-phase cable head in an insulating way, the shielding method is used for shielding the 10KV cable head by adopting an insulating blanket or an insulating jumper tube, the three-phase cable head and the grounding body which does not meet the safety distance need to be shielded according to the principle that the three-phase cable head is firstly shielded from near to far, from bottom to top and is firstly grounded, and personal injury or large-area line power failure accidents caused by single-phase grounding or alternate short circuit due to falling or sliding of the insulating blanket or the insulating jumper tube can occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve prior art's weak point, provide a cable termination's flexible bending insulation guard shield, this insulation guard shield can directly embolia the cable termination, and is easy and simple to handle, and the security is high, makes the staff accomplish the operation labour saving and time saving, greatly promotes the operating efficiency.

A flexible bending insulation shield of a cable terminal joint comprises an insulation sleeve made of flexible materials, wherein one end of the insulation sleeve is closed, and the other end of the insulation sleeve is opened and is axially inserted into the cable terminal joint; the opening end of the insulating sleeve is coaxially and fixedly provided with a damping ring, and a plurality of elastic damping shifting pieces extending in the radial direction are compositely bonded on the circumferential inner wall of the damping ring; the elastic damping shifting piece is made of flexible materials, and the free end of the elastic damping shifting piece is elastically supported and connected to the cable sheath.

Preferably, the closed end of the insulating sleeve is integrally provided with a hemispherical end socket, and the open end of the insulating sleeve is coaxially and compositely bonded with the connecting ring.

Preferably, the damping ring and the connecting ring are fastened and connected through inner hexagon bolts which are uniformly distributed in the circumferential direction and penetrate and are locked in the axial direction.

The utility model has the advantages and the technical effect lie in:

the utility model discloses a flexible bending insulation guard shield of cable terminal connector, the cable terminal connector exposed outside is sheathed through the insulation sleeve with one closed end, wherein, the end socket of the closed end of the insulation sleeve is used for limiting the limit depth of the cable terminal connector after being inserted into the insulation sleeve, the damping ring of the open end of the insulation sleeve is used for increasing the friction force between the damping ring and the cable terminal connector, thereby realizing the anti-falling function of the whole insulation sheath on the cable terminal connector; in addition, the damping ring and the connecting ring on the insulating sheath are designed to be of a detachable structure connected by the hexagon socket head cap bolts, so that the problem that the damping ring and the cable sheath cannot be removed integrally due to too large resistance when the insulating sheath is removed is solved.

The flexible bending insulation protective cover of the cable terminal connector has wide applicability and can be applied to operation sites of cable heads with various sizes; the anti-falling function is realized, and the operation safety is ensured; the flexibility is good, the assembly and disassembly are simple and convenient, and the operation efficiency is improved; the weight is light, and is small, and the operation personnel of being convenient for carry, and the practicality is higher.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a cross-sectional view (insulation shield bending posture) of the present invention;

FIG. 3 is a front view of the damping ring of the present invention;

in the figure: 1-a cable sheath; 2-a damping ring; 3-elastic damping plectrum; 4-connecting rings; 5-hexagon socket head cap screw; 6-cable termination joint; 7-an insulating sleeve; 8-end enclosure.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The invention relates to a flexible bending insulation shield of a cable terminal joint, which comprises an insulation sleeve 7 made of flexible materials, wherein one end of the insulation sleeve is closed, and the other end of the insulation sleeve is opened and is axially inserted into a cable terminal joint 6; a damping ring 2 is coaxially and fixedly arranged at the opening end of the insulating sleeve, and a plurality of elastic damping shifting pieces 3 extending in the radial direction are compositely bonded on the circumferential inner wall of the damping ring; the elastic damping shifting piece is made of flexible materials, and the free end of the elastic damping shifting piece is elastically supported and connected to the cable sheath 1.

Preferably, the closed end of the insulating sleeve is integrally provided with a hemispherical end socket 8, and the open end of the insulating sleeve is coaxially and compositely bonded with the connecting ring 4.

Preferably, the damping ring and the connecting ring are tightly connected through inner hexagon bolts 5 which are uniformly distributed in the circumferential direction and axially penetrate and lock.

In addition, the elastic damping plectrum is preferably a mature product in the prior art, the elastic damping plectrum extends in the radial direction, is arranged in parallel in the axial direction and is distributed on the circumferential inner wall of the damping ring in a circumferentially staggered manner, when the integral insulation shield needs to be removed from the cable terminal connector, if the damping ring is too tightly contacted with the cable sheath and the insulation shield cannot be removed integrally, the damping ring can be separated from the connecting ring in a manner of removing the hexagon socket head cap screw, then the insulation sleeve can be removed, and then the damping ring is manually rotated in the circumferential direction and pulled axially until the damping ring is separated from the cable terminal connector.

In order to more clearly describe the embodiments of the present invention, an example is provided below:

the flexible bending insulation shield of the cable terminal connector is made of insulation materials, the flexible bending insulation shield can be directly sleeved in a cable terminal, the insulation shield can be sleeved in 41 cm along with the bending degree of a cable, the inner diameter of the cable terminal protector is 3.7 cm, the shield is sleeved in without straightening a cable head during shielding, the insulation shield also has an anti-falling function, different cable heads are adopted to shield the cable head according to different types of cable heads, the labor intensity of operators is reduced by adopting the tool, the operation time is shortened, the stay time of the operators in intensive operation space is shortened by adopting the tool under the condition that distribution equipment is intensive, the operation safety is improved, the safety of the operators is protected, the operation efficiency is improved, and the continuous power supply of a power grid is guaranteed.

The flexible bending insulation shield of the cable terminal connector can be directly applied to various live working sites, during operation, an operator can directly put a cable head into the flexible bending insulation shield to realize an insulation effect, and elastic anti-falling teeth (namely elastic damping shifting pieces) are arranged in the flexible bending insulation shield, so that a damping ring and the cable head can be firmly clamped together to realize an anti-falling function. This device has certain compliance, but large-angle bending has very big suitability, can satisfy the different cable heads of the various degree of bending of actual scene, does not need hard adjustment cable head crookedness when making the operation personnel installation, and labour saving and time saving greatly promotes the operating efficiency. The device can be suitable for the operation items such as drop-out insurance replacement and the like for live-line cable head installation, live-line cable head removal and live-line work frequent maintenance, and has high practicability.

Finally, the utility model adopts the mature products and the mature technical means in the prior art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in an embodiment or example of the invention.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a flexible crooked insulating guard shield of cable termination joint which characterized in that: the cable connector comprises an insulating sleeve made of flexible materials, wherein one end of the insulating sleeve is closed, and the other end of the insulating sleeve is opened and is axially inserted into a cable terminal connector; the opening end of the insulating sleeve is coaxially and fixedly provided with a damping ring, and a plurality of elastic damping shifting pieces extending in the radial direction are compositely bonded on the circumferential inner wall of the damping ring; the elastic damping shifting piece is made of flexible materials, and the free end of the elastic damping shifting piece is connected to the cable sheath through an elastic top support.

2. A flexible curved insulation shield for a cable termination joint according to claim 1, wherein: a hemispherical seal head is integrally manufactured at the closed end of the insulating sleeve, and the open end of the insulating sleeve is coaxial and is compositely bonded with a connecting ring.

3. A flexible curved insulating shield for a cable termination fitting according to claim 2, wherein: the damping ring is fixedly connected with the connecting ring through inner hexagonal bolts which are uniformly distributed in the circumferential direction and axially penetrate through and are locked.