CN218415775U

CN218415775U - Indoor shrinkage terminal

Info

Publication number: CN218415775U
Application number: CN202222132516.4U
Authority: CN
Inventors: 叶晓前; 李振勇; 王浩; 朱冠杰; 李钰
Original assignee: Zhejiang Jing Chuang Electric Power Technology Co ltd
Current assignee: Zhejiang Jing Chuang Electric Power Technology Co ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2023-01-31
Anticipated expiration: 2032-08-12

Abstract

The utility model provides an indoor cold-shrinking terminal, which comprises a cold-shrinking terminal body, wherein an extrusion component is arranged on the cold-shrinking terminal body, and the extrusion component comprises an annular groove and is arranged on the inner wall of the cold-shrinking terminal body; the elastic piece is connected to the inner side of the annular groove, and an annular cavity is formed between the elastic piece and the annular groove; and the air tap is connected in the cold shrinkage terminal head body in a penetrating way, and the air outlet end is communicated with the annular cavity. The utility model discloses an air cock is ventilated to the annular chamber, along with the increase of annular chamber internal gas pressure, the elastic component begins to expand towards the cable direction, can make mutual extrusion between cable and the shrinkage terminal body through the elastic component of inflation, when the shrinkage terminal body uses for a long time and takes place not hard up, through the elastic component of inflation not only multiplicable shrinkage terminal body and the frictional force between the cable, and can make elastic component and cable surface further sealed the subsides tightly, thereby can prevent effectively that the shrinkage terminal body from taking place to drop because of becoming flexible, perhaps ooze the water leakage.

Description

Indoor cold-shrinking terminal

Technical Field

The utility model relates to a flue gas purification equipment technical field especially relates to an indoor shrinkage terminal.

Background

The cable terminal integrates water resistance, stress control, shielding and insulation, has good electrical performance and mechanical performance, is mainly used for being assembled at the head end and the tail end of a cable circuit and used for completing devices connected with other electrical equipment, and comprises a cold-contraction type outdoor terminal, a heat-contraction type outdoor terminal, a cold-contraction type indoor terminal, a heat-contraction type indoor terminal, an elbow-shaped terminal and the like.

The cold contraction cable terminal is made of elastomer material, commonly used silicone rubber and ethylene propylene rubber, and through injection vulcanization in factory, diameter expansion and lining with plastic spiral support to form various cable accessory parts.

The prior art has the following defects: the shrinkage terminal head of prior art establishes in the cable outside because the mode is fixed the cover through the shrinkage, because expend with heat and contract with cold's reason, after long-time the use, the not hard up problem of general meeting existence, when the shrinkage terminal head takes place not hard up, not only can take place the obscission, and can take place the infiltration electric leakage phenomenon to remain the improvement.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, an indoor shrinkage terminal is provided.

The utility model discloses a following technical means realizes solving above-mentioned technical problem: an indoor shrinkage terminal, includes shrinkage terminal body, be provided with extrusion assembly on the shrinkage terminal body, extrusion assembly includes

The annular groove is formed in the inner wall of the cold-shrinkage terminal body;

the elastic piece is connected to the inner side of the annular groove, and an annular cavity is formed between the elastic piece and the annular groove;

the air nozzle is connected in the cold shrinkage terminal head body in a penetrating way, and the air outlet end is communicated with the annular cavity;

wherein, ventilate to the annular intracavity through the air cock and make the elastic component inflation, can make and insert to mutual extrusion between this internal inserted of shrinkage terminal and the shrinkage terminal body.

Preferably, the extrusion components are arranged in two groups along the central axis direction of the cold-shrink terminal body.

Preferably, the elastic member is a rubber ring.

Preferably, the surface of the cold-shrinkage terminal head body is connected with a tightening ring corresponding to the position of the extrusion assembly, and the tightening ring is a rubber ring.

Preferably, the tightening ring is provided with through grooves at positions corresponding to the air nozzles, and the air nozzles are respectively arranged in the through grooves at corresponding positions.

The utility model has the advantages that:

the utility model discloses an insert the cable and make the cable core and the electrically conductive part laminating of shrinkage terminal body to this internal messenger cable core of shrinkage terminal, establish the fixed cover of shrinkage terminal body outside the cable, when the cover was established and is accomplished, ventilate to annular cavity through the air cock, along with the increase of annular cavity internal gas pressure, the elastic component begins to expand towards the cable direction, can make mutual extrusion between cable and the shrinkage terminal body through the elastic component of inflation, when the long-time use of shrinkage terminal body takes place not hard up, through the elastic component of inflation not only multiplicable shrinkage terminal body and the frictional force between the cable, and can make elastic component and cable surface further sealed the subsides tightly, thereby can prevent effectively that the shrinkage terminal body from taking place to drop because of not hard up, perhaps the seepage electric leakage.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a cross-sectional view of the compression terminal body of fig. 1 according to the present invention;

FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention;

FIG. 4 is a cross-sectional view of the extrusion assembly of FIG. 1 in accordance with the present invention;

fig. 5 is a schematic view of the cable assembly of fig. 4 according to the present invention.

In the figure: 1. a cold-shrink terminal body; 2. an extrusion assembly; 21. an annular groove; 22. an elastic member; 23. an air tap; 3. an annular cavity; 4. and (5) tightening the ring.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Examples

Referring to fig. 1 to 5, the indoor cold-shrink terminal of the present embodiment includes a cold-shrink terminal body 1, where the cold-shrink terminal body 1 is provided with an extruding component 2, the extruding component 2 includes an annular groove 21 formed in an inner wall of the cold-shrink terminal body 1, an elastic element 22 connected to an inner side of the annular groove 21, and an air faucet 23 connected to the inside of the cold-shrink terminal body 1 in a penetrating manner, an annular cavity 3 is formed between the elastic element 22 and the annular groove 21, and an air outlet end of the air faucet 23 is communicated with the annular cavity 3; wherein, the air tap 23 is used for ventilating the annular cavity 3 to expand the elastic element 22, so that the insertion element inserted into the cold-shrink terminal body 1 and the cold-shrink terminal body 1 can be mutually extruded;

inserting the cable into the cold-shrink terminal body 1 to make the cable core and the conductive part of the cold-shrink terminal body 1 fit with each other, as shown in fig. 5, then extracting a support (not shown in the figure) in the cold-shrink terminal body 1, and fixedly sleeving the cold-shrink terminal body 1 outside the cable in a cold-shrink manner, when the sleeving is completed, ventilating the air into the annular cavity 3 through the air nozzle 23, along with the increase of the air pressure in the annular cavity 3, the elastic member 22 begins to expand towards the cable direction, the cable and the cold-shrink terminal body 1 can be mutually extruded through the expanded elastic member 22, when the cold-shrink terminal body 1 is loosened after long-time use, the friction force between the cold-shrink terminal body 1 and the cable can be increased through the expanded elastic member 22, and the elastic member 22 can be further tightly sealed and attached to the cable surface, so that the cold-shrink terminal body 1 can be effectively prevented from falling off or water seepage and electricity leakage caused by loosening; the elastic member 22 is provided as a rubber ring, so that when the rubber ring expands, not only can the friction force between the cold-shrink terminal body 1 and the cable be increased, but also the elastic member 22 can be further tightly attached to the surface of the cable in a sealing manner.

Set up extrusion subassembly 2 as a set of drawback that exists, when air cock 23 damages or elastic component 22 takes place the gas leakage, the expansion will not take place for elastic component 22 this moment, when cold shrink terminal body 1 takes place not hard up, cold shrink terminal body 1 will take place to drop or the infiltration electric leakage, so be provided with two sets ofly with extrusion subassembly 2 along the central axis direction of cold shrink terminal body 1, when air cock 23 or elastic component 22 in a set of take place to damage, another group can play the effect effectively equally, thereby can prolong the life of cold shrink terminal body 1.

All be connected with the ring of tightening 4 in the 1 surperficial department that corresponds 2 positions of extrusion subassembly of shrinkage terminal body, the ring of tightening 4 is the rubber circle, the corresponding air cock 23 position department of ring of tightening 4 has all seted up logical groove, set up air cock 23 respectively in the logical inslot that corresponds the position, can realize tightening up shrinkage terminal body 1 through the ring of tightening 4, further increase the frictional force between shrinkage terminal body 1 and the cable, further prevent effectively that shrinkage terminal body 1 from taking place to drop.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an indoor shrinkage terminal, includes shrinkage terminal body (1), its characterized in that: the cold-shrinkage terminal head is characterized in that an extrusion assembly (2) is arranged on the cold-shrinkage terminal head body (1), and the extrusion assembly (2) comprises

The annular groove (21) is formed in the inner wall of the cold-shrink terminal body (1);

the elastic piece (22) is connected to the inner side of the annular groove (21), and an annular cavity (3) is formed between the elastic piece and the annular groove (21);

the air nozzle (23) is connected in the cold-shrinkage terminal head body (1) in a penetrating way, and the air outlet end is communicated with the annular cavity (3);

wherein, ventilate to the annular chamber (3) through the air cock (23) and make the elastic component (22) expand, can make and insert to the mutual extrusion between cold-shrink terminal body (1) and the plug-in member in the cold-shrink terminal body (1).

2. The indoor cold shrink terminal of claim 1, wherein: the extrusion assembly (2) is provided with two groups along the central axis direction of the cold-shrink terminal head body (1).

3. The indoor cold shrink terminal of claim 1, wherein: the elastic piece (22) is a rubber ring.

4. The indoor cold shrink terminal of claim 1, wherein: shrinkage terminal head body (1) surface corresponds extrusion subassembly (2) position department and all is connected with tighten up circle (4), tighten up circle (4) are the rubber circle.

5. The indoor cold-shrink terminal of claim 4, wherein: the tightening ring (4) is provided with through grooves corresponding to the positions of the air nozzles (23), and the air nozzles (23) are respectively arranged in the through grooves corresponding to the positions.