CN216488532U

CN216488532U - Unilateral puncture wire clamp

Info

Publication number: CN216488532U
Application number: CN202123354466.6U
Authority: CN
Inventors: 蒋文连
Original assignee: Shanghai Xinggan Communication Equipment Co ltd
Current assignee: Shanghai Xinggan Communication Equipment Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-05-10
Anticipated expiration: 2031-12-28

Abstract

The embodiment of the utility model provides a unilateral puncture wire clamp, an upper cover, a base, a puncture part and an insulating sealing element; one end of the upper cover is rotatably connected with one end of the base, and the other end of the upper cover is matched and fastened; a main cavity for accommodating a main cable and a branch cavity for accommodating a branch cable are arranged between the upper cover and the base; the main cavity and the branch cavity are respectively provided with a puncture part, the puncture parts are made of conductive materials and are in conductive connection; an insulating sealing element used for wrapping the puncture part is arranged between the upper cover and the base. The utility model discloses need not use appurtenance such as spanner, can accomplish the electrically conductive connection of leader cable and branch cable fast.

Description

Unilateral puncture wire clamp

Technical Field

The utility model relates to an electrically conductive connecting device, concretely relates to unilateral puncture fastener.

Background

In a low-voltage (220V/380V) cable system, a branch connection is a weak link, and meanwhile, the branch connection is very critical to the insulation integrity and electricity utilization safety of the whole system. The branch connection methods in the prior art are more, but each method has its defects, such as:

1. the peeling and winding manner is commonly used in application scenarios with small cross-sectional areas of branch lines, such as home wiring, street lamp leading-up lines, house lines in rural power networks or distribution networks, outdoor advertising screen contacts, and the like. The peeling and winding mode has higher requirement on the responsibility of constructors, after peeling and winding, the insulation recovery is usually to wind the insulation tape, and waterproof treatment is not carried out under many conditions.

Therefore, the performance of the joint cannot be guaranteed by the peeling and winding mode, the potential electric leakage hazard per se is extremely high, the insulating tape is extremely easy to age in an outdoor environment, a larger electric leakage risk is caused, and even accidents such as electric shock or fire are caused.

2. The parallel groove clamp method is commonly used in an application scenario where the cross-sectional area of a branch line is large, for example, the connection between a main cable and a branch cable at the front end of an service line in a power grid needs to be stripped off the cable insulation and a wrench is used.

It is thus clear that parallel groove clamp mode connector is great, has the requirement to the construction space, and the construction degree of difficulty is great, and the insulation recovery mode often is winding insulating tape or pyrocondensation bushing to because it is higher to insulating requirement, consequently, need adopt pyrocondensation bushing usually, then need use naked light or dry by the fire the rifle with pyrocondensation bushing, obviously, further aggravated construction cost and degree of difficulty.

3. The insulation piercing connector mode is applied for more than 20 years in China, and because the insulation of a cable does not need to be stripped, a bolt and a nut are screwed by using a spanner during installation, the installation mode is relatively simple, the insulation protection performance is high, electric leakage is not easy to occur, and the insulation piercing connector mode is widely applied to a power grid system.

However, the size of the insulated piercing connector is large, and the construction is complicated under the condition that the sectional area of the branch line is not large, for example, in the connection of a street lamp leading line, the product is long in the longitudinal direction due to the installation mode, and a wrench is required for the space when being used. Meanwhile, for a large cable, a main cable clamp and the cable need to be fixed, otherwise, the large cable is easy to distort; for small cables, the cables are easy to twist when being fixed, so that the installation of thin branches or in narrow space is difficult, the cost is high, and the time is long.

Disclosure of Invention

In view of this, the embodiment of the utility model provides a unilateral puncture fastener to solve above-mentioned technical problem.

In order to achieve the above technical purpose, an embodiment of the utility model provides an unilateral puncture fastener, its improvement lies in, include: the upper cover, the base, the puncture part and the insulating sealing element;

the upper cover is rotatably connected with one end of the base, and the other end of the upper cover is fastened in a matched manner;

a main cavity for accommodating a main cable and a branch cavity for accommodating a branch cable are arranged between the upper cover and the base;

the puncture parts are respectively arranged at the positions of the main cavity and the branch cavity, the puncture parts are made of conductive materials, and the two puncture parts are in conductive connection;

the insulating sealing element used for wrapping the puncture part is arranged between the upper cover and the base.

The utility model discloses owing to take above technical scheme, compare with prior art, it has following advantage:

the utility model discloses a set up upper cover and base one end swivelling joint, other end cooperation straining to set up and be provided with the main cavity that is used for holding the leader cable between upper cover and the base, and be used for holding branch cable's a chamber, and main cavity and a chamber position department set up puncture portion respectively, puncture portion is made by electrically conductive material processing, and two puncture portion electrically conductive connections, consequently, need not use appurtenance such as spanner, can accomplish the electrically conductive connection of leader cable and branch cable fast.

The utility model discloses convenient operation, it is with low costs, can wide application in electrically conductive connection technical field.

Drawings

Fig. 1 is a perspective view of one of the angles of one of the embodiments of the present invention;

FIG. 2 is a perspective view from another angle of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 2;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a perspective view of the upper cover of FIG. 1;

FIG. 6 is a perspective view of FIG. 5 from another angle;

FIG. 7 is a perspective view of the base of FIG. 1;

FIG. 8 is a perspective view of the puncturing part of FIG. 1;

fig. 9 is a perspective view of one embodiment of the sealing member of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments of the present invention and the description thereof are used to explain the present invention, but are not intended to limit the present invention.

As shown in fig. 1-4, the embodiment of the utility model provides a unilateral puncture fastener, include: an upper cover 1, a base 2 and a puncture part 3;

one end of the upper cover 1 is rotatably connected with one end of the base 2, and the other end is matched and fastened;

a main cavity 4 for accommodating a main cable and a branch cavity 5 for accommodating branch cables are arranged between the upper cover 1 and the base 2;

the main cavity 4 and the branch cavity 5 position department set up puncture part 3 respectively, and puncture part 3 is made by electrically conductive material processing, and two 3 electrically conductive connections of puncture part to pierce through leader cable and branch cable respectively through two puncture part 3, realize leader cable and branch cable's electrically conductive connection.

When in use, the matched fastening ends of the upper cover 1 and the base 2 are in an open state, so that the upper cover 1 and the base 2 are in the open state, and the upper cover 1 and the base 2 can rotate relatively;

then the main cable is placed in the main cavity 4, and the branch cable is placed in the branch cavity 5;

finally, the cooperating fastening ends of the cover 1 and the base 2 are brought into a fastened state, so that the cover 1 and the base 2 are brought into a closed state.

Obviously, because

main cavity

4 and 5 position departments in branch chamber set up puncture portion 3 respectively, when upper cover 1 and base 2 were in the closed condition, two puncture portions 3 can pierce through main cable and branch cable respectively, act as the electrically conductive connecting portion between main cable and the branch cable, and then realize the electrically conductive connection of main cable and branch cable, consequently, need not use appurtenance such as spanner, in narrow and small space (for example, scene such as light pole, outdoor advertising screen), can accomplish the electrically conductive connection of main cable and branch cable fast.

In some embodiments, as shown in fig. 5-7, a hook ring 11 is disposed at one end of the upper cover 1, and correspondingly, a round bolt 21 is disposed at one end of the base 2, and the round bolt 21 is located in the hook ring 11, so that the upper cover 1 and the base 2 can rotate, that is, the upper cover 1 and the base 2 can be opened and closed in the longitudinal direction;

of course, one end of the upper cover 1 may be provided with the round bolt 21, and correspondingly, one end of the base 2 is provided with the hook ring 11;

in addition, the rotary connection can also adopt a hinged connection, and the rotary connection structure of the upper cover 1 and the base 2 can be arranged according to the requirement, and is not limited herein.

In some embodiments, the other end of the upper cover 1 is provided with a buckle 12, correspondingly, the other end of the base 2 is provided with a clamping groove 22, the buckle 12 is located in the clamping groove 22, so that the upper cover 1 and the base 2 are matched and fastened, and the buckle 12 is separated from the clamping groove 22, namely, in an open state;

of course, the other end of the upper cover 1 may also be provided with a clamping groove 22, and correspondingly, the other end of the base 2 is provided with a buckle 12;

in addition, the fastening can be achieved by screwing or bolting, and the fastening structure of the upper cover 1 and the base 2 can be provided as required, which is not limited herein.

In some embodiments, the bottom surface of the upper cover 1 is provided with a first main arc-shaped groove 13 and a first branch arc-shaped groove 14 at intervals, and correspondingly, the top surface of the base 2 is provided with a second main arc-shaped groove 23 and a second branch arc-shaped groove 24 at intervals, so as to form a main cavity 4 for accommodating a main cable and a branch cavity 5 for accommodating a branch cable, namely: the main cavity 4 is formed by butting the first main arc-shaped groove 13 and the second main arc-shaped groove 23; the first arc-supporting groove 14 and the second arc-supporting groove 24 are butted to form a supporting cavity 5;

in this embodiment, the main cavity 4 and the branch cavities 5 may be provided with spacers 25 to increase the applicable range of the cable, for example, to adapt to cables with different diameters;

more specifically, the spacer 25 is provided in the second main arc groove 23 and the second branch arc groove 24 on the top surface of the base 2.

In some embodiments, the main chamber 4 and the branch chambers 5 are respectively provided with mounting grooves 6 for accommodating the puncturing parts 3, wherein the mounting grooves 6 are configured according to the number, structure and position of the puncturing parts 3.

The mounting groove 6 can be disposed on the bottom surface of the upper cover 1, and can also be disposed on the top surface of the base 2, in this embodiment, the mounting groove 6 is disposed on the bottom surface of the upper cover 1, but is not limited thereto, and can be disposed as required when in specific use.

In some embodiments, as shown in fig. 8, the piercing part 3 is configured as a concave arc-shaped tooth 31, wherein, in order to adapt to different diameter sizes of the main cable and the branch cable, the arc-shaped tooth 31 for piercing the main cable has a larger arc, the arc-shaped tooth 31 for piercing the branch cable has a smaller arc, and the two arc-shaped teeth 31 are integrated into a whole and are processed into a blade structure by conductive metal.

Accordingly, the mounting groove 6 may be provided as a blade groove to accommodate the blade structure, and in this embodiment, four blades are provided on the bottom surface of the upper cover 1 to improve the conductive performance, and correspondingly, four blade grooves are provided on the bottom surface of the upper cover 1 to accommodate the blades.

Because set up puncture portion 3 into the arc tooth 31 structure of indent, consequently, both made things convenient for fixed to the cable, when avoiding the puncture, the cable skew is convenient for pierce through the cable insulation fast again, is effectively connected with the sinle silk to further effectively improve electric connection effect.

In some embodiments, the side of the upper cover 1 and/or the base 2 may be provided with a receiving hole 15 to receive the broken end of the branch cable, so as to achieve sealing insulation;

in this embodiment, the receiving hole 15 is disposed on the side of the upper cover 1, and the receiving hole 15 is an inverted cone-shaped counter bore.

The broken end of the branch cable may be hermetically insulated by, for example, an insulating cap, and may be provided as needed, but is not limited thereto.

In some embodiments, as shown in fig. 3, 4 and 9, an insulating sealing member 7 for wrapping the puncturing part 3 is arranged between the upper cover 1 and the base 2, so that the puncturing part 3 is sealed, and the reliability of the cable branch connection is effectively improved;

it can be seen that the structure, the setting position of sealing member 7 set up according to supporting settings such as the structure, the position of puncture portion 3, and when puncture portion 3 set up in upper cover 1 bottom surface, and set up to the arc tooth 31 integration in integrative blade structure of two indents, sealing member 7 includes: a bottom pocket 71 and two side covers 72;

one or two arc-shaped protrusions 73 are arranged on the bottom surface of the bottom pocket 71 to fit with the bottom surfaces of the arc-shaped teeth 31, wherein when the diameter of the branch cable is smaller than a preset value, for example, 1mm, a certain extrusion space can be provided due to the elasticity of the sealing member 7, so that one arc-shaped protrusion 73 can be arranged on the bottom surface of the bottom pocket 71 to fit with the structure of the arc-shaped teeth 31 for piercing the main cable, and when the diameter of the branch cable exceeds the preset value, the elastic extrusion space of the sealing member 7 is also exceeded, so that two arc-shaped protrusions 73 are required to be arranged on the bottom surface of the bottom pocket 71;

two sides of the bottom pocket 71 are respectively fixedly connected with the bottoms of the side covers 72, and the two side covers 72 and the bottom pocket 71 form an accommodating groove 74 which is used for wrapping the lower part of the upper cover 1 and preventing the blades from being exposed.

It can be seen that the structure, size and shape of the bottom pocket 71 and the side cover 72 are determined according to the structure of the lower part of the upper cover 1, in this embodiment, one side of the side cover 72 is provided with a large arc-shaped lug, and the other side is provided with a small arc-shaped lug, so as to match with the structure of the side of the lower part of the upper cover 1, and further facilitate installation;

the top of the side cover 72 is fixedly connected with the upper cover 1 by means of bonding, screwing and the like, which are not limited herein.

When the holes 15 are accommodated at the side of the upper cover 1, the side cover 72 at the corresponding side is provided with through holes 75 to communicate with the accommodating holes 15 so as to accommodate the broken ends of the branch cables;

in addition, although the figures show the curved teeth 31 on the top surface of the curved projection 73 of the sealing member 7 when the cover 1 and the base 2 are in the closed state, since the sealing member 7 has an elastic structure, the curved teeth 31 may sequentially pierce the sealing member 7 and the cable insulation when the sealing member 7 is compressed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a unilateral puncture fastener which characterized in that includes: the upper cover, the base, the puncture part and the insulating sealing element;

2. The single-sided puncture wire clamp of claim 1, wherein a hook ring is disposed at one end of the upper cover, and correspondingly, a round bolt is disposed at one end of the base, and the round bolt is disposed in the hook ring.

3. The single-sided puncture wire clamp of claim 1, wherein a buckle is disposed at the other end of the upper cover, and correspondingly, a clamping groove is disposed at the other end of the base, and the buckle is located in the clamping groove.

4. The single-sided puncture clamp of claim 1, wherein the bottom surface of the upper cover is spaced apart from a first main arc-shaped slot and a first branch arc-shaped slot, and correspondingly, the top surface of the base is spaced apart from a second main arc-shaped slot and a second branch arc-shaped slot to form the main cavity for receiving a main cable and the branch cavity for receiving a branch cable.

5. The single-sided puncture clamp of claim 1, wherein a gasket is disposed in both the main cavity and the branch cavity.

6. The single-sided puncture wire clamp of claim 1, wherein the main cavity and the branch cavity are respectively provided with a mounting groove for accommodating the puncture part.

7. The single-sided puncturing clip of claim 1, wherein the puncturing portion is configured as an inwardly concave arc-shaped tooth structure, and the two arc-shaped teeth are integrated and processed into a blade structure by conductive metal.

8. The single-edge piercing connector as claimed in claim 1, wherein the side of the top cover and/or the base is provided with a receiving hole for receiving a broken end of a branch cable.

9. The single-sided piercing wire clamp of claim 7, wherein the seal comprises: a bottom pocket and two side covers;

one or two arc-shaped bulges are arranged on the bottom surface of the bottom pocket so as to be attached to the arc-shaped tooth bottom surface;

the two sides of the bottom pocket are respectively fixedly connected with the bottoms of the side covers, and the side covers and the accommodating groove formed by the bottom pocket are used for wrapping the lower part of the upper cover.