CN111541061A - A line repair device - Google Patents

Abstract

The invention discloses a line repairing device, and belongs to the technical field of power maintenance tools. The circuit repairing device comprises a connecting conductor, two tightening elastic pieces, two expansion pieces and two screw caps, wherein mounting holes are formed in two ends of the connecting conductor, and two wires are respectively arranged in the two mounting holes and can be electrically connected with the connecting conductor; the two expansion pieces are respectively sleeved on the two wires, the expansion pieces are in a conical column shape, and the large-diameter ends of the expansion pieces are close to the connecting conductors; the two tightening elastic pieces are respectively arranged in the two mounting holes, and two ends of the two tightening elastic pieces are respectively abutted against the large-diameter end of the expansion piece and the connecting conductor; the two rotary caps are respectively connected to two ends of the connecting conductor, the rotary caps are sleeved on the expansion piece, and the inner cavity of each rotary cap is in a conical hole shape matched with the appearance of the expansion piece. According to the circuit repairing device provided by the invention, the expansion piece is tightly pressed from two ends by the tightening elastic piece and the rotating cap, so that the expansion piece is tightly attached to the lead, the overcurrent capacity is improved, the lead is prevented from loosening, and the connection reliability is improved.

Description

A line repair device

technical field

The invention relates to the technical field of electric power maintenance tools, in particular to a circuit repairing device.

Background technique

The low-voltage overhead line is an important channel for connecting the bench and the user terminal. There are many cable terminals and connectors. The stability and reliability of the connector connection are very important for safe electricity consumption. When the power line is repaired, the existing technology usually adopts: hand-tied type, wrapping insulating tape on the outside of the connection point for waterproof and insulation protection; terminal crimping type, after the terminal is crimped, a heat-shrinkable sleeve is used to realize the cable connection. Insulated and waterproof. The problems with the above two methods are: 1. The connection is mainly manual operation, and the connection effect is affected by the construction site equipment and human operation. The effect varies from person to person, the reliability of the connection cannot be guaranteed, and it takes a long time and increases the work of the staff. Second, the terminal crimping is often only the crimping part as the contact surface, the contact area is smaller than the nominal cross section of the conductor, and the overcurrent capacity cannot meet the requirements; Third, after thermal expansion and cold contraction, it will be loose, and it is easy to generate heat due to overcurrent. phenomenon, and even the failure of burning the connection, causing power outages and more serious accidents, resulting in huge economic losses.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a circuit repairing device, which can improve the overcurrent capability and connection reliability, and is easy to install.

For this purpose, the present invention adopts the following technical solutions:

A circuit repairing device, comprising:

The connecting conductor is provided with mounting holes at both ends, and the two wires are respectively arranged in the two mounting holes and can be electrically connected with the connecting conductor;

The two expansion pieces are respectively sleeved on the two wires, the expansion pieces are in the shape of a conical column and the large diameter end of the expansion piece is close to the connecting conductor;

The two pressing elastic pieces are respectively arranged in the two mounting holes, and their two ends are respectively abutted on the large diameter end of the expansion piece and the connecting conductor;

The two screw caps are respectively connected to both ends of the connecting conductor, the screw caps are sleeved on the expansion piece, and the inner cavity of the screw cap is in the shape of a conical hole matched with the shape of the expansion piece.

Optionally, the connecting conductors include:

The two connecting parts are respectively arranged on the outer periphery of the two mounting holes and are used for threaded connection with the screw cap;

The blocking part is arranged between the two connecting parts, and the other end of the pressing elastic piece abuts on the blocking part.

Optionally, the expansion piece includes a plurality of expansion pieces arranged on the outer periphery of the guide wire, and the plurality of expansion pieces encloses a conical column shape.

Optionally, the line repair device further includes a threading cap, which can be fastened on one end of the wire close to the connecting conductor.

Optionally, the pressing elastic member is a spring, and the spring can be sleeved on the threading cap.

Optionally, both the expansion piece and the connecting conductor are made of the same material as the wire.

Optionally, the circuit repairing device further includes an insulating casing, and the insulating casing includes:

The accommodating cavity, the connecting conductor, the expansion piece pressing elastic piece and the screw cap are all arranged in the accommodating cavity;

The port is opened at both ends of the insulating shell and communicated with the accommodating cavity, and the wire is passed through the port.

An accommodating cavity for accommodating the above structure is provided inside.

Optionally, the insulating housing includes an upper insulating cover and a lower insulating cover, and the upper insulating cover and the lower insulating cover are connected by plugging.

Optionally, a filling port is provided on the insulating housing, and glue is injected into the accommodating cavity through the filling port; and/or

The ports are hermetically connected to the wires.

Optionally, a plurality of accommodating cavities are opened on the insulating housing, and each accommodating cavity is used for connecting two wires; and/or

The circuit repairing device includes a plurality of insulating casings, and the plurality of insulating casings are connected by an insulating plate.

Beneficial effects of the present invention:

The invention provides a circuit repairing device, wherein two wires are respectively connected to the connecting conductor through a tightening elastic piece, an expansion piece and a screw cap, and the expansion piece in the shape of a conical column is forced by the tightening elastic piece and the screw cap from both ends. , make the expansion piece closely fit with the wire, increase the conductive contact area, and improve the overcurrent capability; increase the holding force of the expansion piece to the wire to prevent the wire from loosening. When the wire is subjected to external tension, the expansion piece will increase the amount of wire The tight holding force improves the connection reliability, thereby improving the safety of electricity use; the mechanical connection between the elastic parts, expansion parts, screw caps and connecting conductors avoids the randomness caused by manual operation and further improves the connection. Reliability, easy installation, improved work efficiency and reduced labor intensity.

Description of drawings

1 is a schematic structural diagram of a line repair device provided in Embodiment 1 of the present invention;

Fig. 2 is the front view of the circuit repairing device provided by the first embodiment of the present invention;

Fig. 3 is the A-A sectional view of Fig. 2;

4 is an exploded view of the circuit repairing device provided in Embodiment 1 of the present invention;

FIG. 5 is a schematic structural diagram of a circuit repairing device provided in Embodiment 2 of the present invention.

In the picture:

100-insulated cable; 101-conductor; 102-sheath;

1-insulation shell; 11-upper insulation cover; 111-insertion slot; 12-lower insulation cover; 121-plug connector; 13-filling port; 14-cover body; 15-port; 16-insulation plate;

2- Tighten the elastic piece;

3-threading cap; 31-card edge;

4-expansion piece; 41-expansion piece; 42-positioning ring;

5-screw cap;

6-connecting conductor; 61-blocking part; 62-connecting part; 63-installation hole.

Detailed ways

In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only the present invention. Some examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, unless otherwise expressly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

Example 1

This embodiment provides a line repairing device, as shown in FIGS. 1-4 , which includes a connecting conductor 6 , two pressing elastic members 2 , two expanding members 4 and two Screw cap 5. 3 and 4, specifically, the two ends of the connecting conductor 6 are provided with mounting holes 63, and the two wires 101 are respectively arranged in the two mounting holes 63 and can be electrically connected to the connecting conductor 6; the two expansion members 4 are respectively sleeved Set on the two wires 101, the expansion piece 4 is in the shape of a conical column and its large diameter end is close to the connecting conductor 6; the two pressing elastic pieces 2 are respectively arranged in the two mounting holes 63, and their ends are respectively abutted on the expansion piece. On the large diameter end of the piece 4 and the connecting conductor 6; the two screw caps 5 are respectively connected to the two ends of the connecting conductor 6, the screw cap 5 is sleeved on the expansion piece 4, and the inner cavity of the screw cap 5 is in the same shape as the expansion piece. Conical hole shape with matching shape.

The two wires 101 are respectively connected to the connecting conductor 6 through the elastic member 2, the expansion member 4 and the screw cap 5, and the expansion member 4 in the shape of a conical column is pressed by the elastic member 2 and the screw cap 5 from both ends, so that the The expansion part 4 is closely attached to the wire 101, which increases the conductive contact area and improves the overcurrent capability; increases the holding force of the expansion part 4 to the wire 101, prevents the wire 101 from loosening, and improves the connection reliability. Electrical safety; the mechanical connection between the pressing elastic member 2, the expansion member 4, the screw cap 5 and the connecting conductor 6 avoids the randomness caused by manual operation, further improves the connection reliability, facilitates installation, improves the operation efficiency and Reduce labor intensity. When the wire 101 is subjected to external pulling force, the expansion member 4 will increase the holding force to the wire 101, which is especially useful for connection at the position that bears the force.

4 , optionally, the connecting conductor 6 includes two connecting parts 62 and a blocking part 61 disposed between the two connecting parts 62 , and the two connecting parts 62 are respectively disposed on the outer periphery of the two mounting holes 63 for It is threadedly connected with the screw cap 5, and the other end of the pressing elastic piece 2 abuts on the blocking part 61, so that the expansion piece 4 is installed between the screw cap 5 and the pressing elastic piece 2, and the connecting conductor 6 has a simple structure and is easy to process and improve. assembly. 3, in this embodiment, the outer diameter of the blocking portion 61 is larger than the outer diameter of the connecting portion 62, and the end of the screw cap 5 close to one end of the connecting conductor 6 can be screwed to the blocking portion 61, so that the screw cap 5 can be installed in place.

Referring to FIG. 4 , optionally, the expansion member 4 includes a plurality of expansion sheets 41 arranged on the outer periphery of the guide wire 101, and the multiple expansion sheets 41 are formed into a conical column shape. Each expansion piece 41 holds the lead 101 tightly, and the greater the squeezing force, the greater the holding force on the lead 101 . Specifically, the expansion member 4 further includes a positioning ring 42 , a groove is provided on the expansion sheet 41 , and the positioning ring 42 is installed on the groove for positioning and connection of the plurality of expansion sheets 41 . Specifically, the inner hole of the expansion member 4 is also provided with threads to increase the frictional force with the wire 101 , so that the guide can bear greater axial tension and improve the connection reliability.

Optionally, the line repair device further includes a threading cap 3, which can be buckled at one end of the wire 101 close to the connecting conductor 6. When the wire 101 includes a multi-strand wire, the threading cap 3 is used for the wire harness of the wire 101; use When the threading cap 3 is arranged on the small diameter end of the expansion member 4, as the wire 101 is inserted into the expansion member 4, the end of the wire 101 pushes the threading cap 3 to move inward; To the extending clip edge 31, the clip edge 31 can be clipped on the large diameter end of the expansion piece 4, so as to prevent the threading cap 3 from being separated from the expansion piece 4, so that the wire harness is more reliable.

Optionally, the pressing elastic member 2 is a spring, the spring has greater elasticity and a relatively stable force, so that the expansion member 4 can be subjected to a stable force during long-term use; The large diameter end of the expansion piece 4 and the blocking part 61, and the spring can be sleeved on the threading cap 3, so as to save the installation space.

Because the material of the terminal at the connection is different from the material of the wire 101 itself, there is a potential difference between the two different materials, and electrochemical corrosion and contact oxidation occur. This situation is likely to cause heat generation and even breakage at the connection, which may lead to the risk of electric leakage and electric shock. The accident poses a threat to the personal safety of residents. In order to solve the above problem, in this embodiment, the expansion member 4 and the connecting conductor 6 are made of the same material as the wire 101 to avoid heat generation due to electrochemical corrosion and contact oxidation, thereby ensuring the safety of electricity use.

When the outside needs to be insulated or used on the insulated cable 100, the traditional method usually adopts the jacket tape and the heat-shrinkable sleeve. However, the tape and the heat-shrinkable sleeve are easy to age and fall off, and there will be a serious safety hazard; in order to solve the above problems , the circuit repair device also includes an insulating housing 1, and the insulating housing 1 is provided with an accommodating cavity for accommodating the above-mentioned structures, so as to prevent the above-mentioned structures from being exposed to achieve the purpose of insulation from the outside; The conductor 6, the expansion piece 4, the pressing elastic piece 2 and the screw cap 5 are all arranged in the accommodating cavity;

In order to prevent water and air from entering the interior of the insulating casing 1 and oxidizing and corroding the conductors, optionally, the insulating casing 1 is provided with a filling port 13, the filling port 13 is communicated with the accommodating cavity, and glue is injected into the accommodating cavity through the filling port 13, In order to increase the waterproof sealing performance of the insulating casing 1 to the internal structure, the overcurrent capability and the long service life are ensured. Further optionally, the pouring port 13 is provided with a cover body 14, and the cover body 14 is used to block the pouring port 13 to prevent the glue from flowing out and affecting the use effect.

Optionally, the port 15 is connected to the wire 101 in a sealed manner, so as to increase the waterproof sealing performance; at the same time, when glue is injected into the insulating casing 1, the glue can also be prevented from flowing out. Specifically, the wire 101 is covered with an insulating sheath 102 , the wire 101 is passed through the expansion member 4 , the sheath 102 abuts on the small diameter end of the expansion member 4 , and the port 15 of the insulating casing 1 is connected to the sheath 102 , so that the wire 101 , Tighten the elastic member 2, the threading cap 3, the expansion member 4 and the screw cap 5 completely in the insulating space, and the insulating shell 1 plays a better insulating role; It is avoided that the outer sheath 102 falls off and the lead wire 101 is exposed. Optionally, the insulating shell 1 can also be welded with the outer skin 102 to prevent the outer skin 102 from falling off and ensure connection reliability.

Optionally, the insulating housing 1 includes an upper insulating cover 11 and a lower insulating cover 12, and the upper insulating cover 11 and the lower insulating cover 12 are plugged and connected, so as to facilitate the connection of the wire 101, the pressing elastic member 2, the threading cap 3, and the expansion member 4. And the screw cap 5 is accommodated in the accommodating space for easy installation. Specifically, the plug connector 121 is connected to the plug slot 111, which is in the prior art and will not be described again; in this embodiment, the upper insulating cover 11 is provided with the plug groove 111, and the lower insulating cover 12 is provided with a plug connector 121 ; in other embodiments, the lower insulating cover 12 may also be provided with a plug slot 111 , and the upper insulating cover 11 may be provided with a plug connector 121 .

Optionally, the steps of using the line repair device, taking installing one of the insulated cables 100 as an example, include:

Before installation, peel off the sheath 102 of the insulated cable 100 to expose the joints of the wires 101;

S1: the spring is installed in the installation hole 63, and one end abuts on the blocking part 61;

S2: The threading cap 3 is installed on the small diameter end of the expansion piece 4;

S3: The large diameter end of the expansion piece 4 abuts against the other end of the spring;

S4: After the wire 101 passes through the screw cap 5, push the threading cap 3 and thread it into the expansion member 4;

S5: the screw cap 5 is sleeved on the expansion part 4 and screwed on the connecting part 62;

S6: the upper insulating cover 11 and the lower insulating cover 12 are plugged and connected and covered with the above structure;

S7: inject glue into the accommodating cavity through the pouring port 13, cover the cover 14, and let the glue dry.

This embodiment has verified the feasibility of the line repair device in the high-overcurrent type line, and it can be applied to the straight line connection of the wire 101 of the low-voltage overhead insulated line or the connection of the wire 101 to the user's household line. The flow capacity, waterproof and anti-electric shock effect are good, and at the same time, the overall operation effect of the construction efficiency of the line connection can be improved. It can solve the problems of foreign object electric shock and phase-to-phase short circuit existing at the end of the current low-voltage overhead line, improve the reliability of power supply, and improve user satisfaction. Therefore, the line repair device is used in a huge amount after it is launched into the market. The line repair device is suitable for the connection of the insulated cable 100 and the power conductor 101 in the low-voltage line at the bearing position. The implementation prospect is great, and it can bring considerable economic benefits. considerable.

Embodiment 2

The difference between this embodiment and the first embodiment is that a two-wire system or a multi-wire system is formed. In this embodiment, the circuit repairing device includes a plurality of insulating casings 1, and the plurality of insulating casings 1 are connected by an insulating plate 16; other embodiments Among them, a plurality of accommodating cavities may also be opened on the insulating housing 1 , and each accommodating cavity is used for connecting two wires 101 .

Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the embodiments of the present invention. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (10)

1. a circuit repairing device, is characterized in that, comprises: a connecting conductor (6), two ends are provided with mounting holes (63), and two wires (101) are respectively arranged in the two mounting holes (63) and can be electrically connected with the connecting conductor (6); Two expansion pieces (4) are sleeved on the two wires (101) respectively, the expansion pieces (4) are in the shape of a conical column and the large diameter end thereof is close to the connection conductor (6); Two pressing elastic members (2) are respectively arranged in the two mounting holes (63), and the two ends of the elastic members (2) are respectively abutted against the large diameter end of the expansion member (4) and the connecting conductor (6). )superior; Two screw caps (5) are respectively connected to both ends of the connecting conductor (6), the screw caps (5) are sleeved on the expansion member (4), and the screw caps (5) are The inner cavity is in the shape of a conical hole matched with the shape of the expansion piece. 2. The line repair device according to claim 1, wherein the connecting conductor (6) comprises: Two connecting parts (62), respectively disposed on the outer circumference of the two mounting holes (63), are used for screw connection with the screw cap (5); A blocking portion (61) is provided between the two connecting portions (62), and the other end of the pressing elastic member (2) abuts on the blocking portion (61). 3. The circuit repair device according to claim 1, wherein the expansion member (4) comprises a plurality of expansion sheets (41) disposed on the outer periphery of the guide wire (101), and a plurality of the expansion sheets ( 41) Encircled into a conical cylindrical shape. 4. The circuit repairing device according to claim 1, characterized in that, the circuit repairing device further comprises a threading cap (3), the threading cap (3) can be buckled and arranged on the wire (101) close to the Connect one end of the conductor (6). 5 . The circuit repairing device according to claim 4 , wherein the pressing elastic member ( 2 ) is a spring, and the spring can be sleeved on the threading cap ( 3 ). 6 . 6 . The line repair device according to claim 1 , wherein the expansion member ( 4 ) and the connecting conductor ( 6 ) are both made of the same material as the wire ( 101 ). 7 . 7. The circuit repairing device according to any one of claims 1-6, characterized in that, the circuit repairing device further comprises an insulating casing (1), and the insulating casing (1) comprises: an accommodating cavity, wherein the connecting conductor (6), the expansion piece (4), the pressing elastic piece (2) and the screw cap (5) are all arranged in the accommodating cavity; Ports (15) are opened at both ends of the insulating shell (1) and communicated with the accommodating cavity, and the wires (101) are passed through the ports (15). 8 . The circuit repairing device according to claim 7 , wherein the insulating casing ( 1 ) comprises an upper insulating cover ( 11 ) and a lower insulating cover ( 12 ), the upper insulating cover ( 11 ) and the The lower insulating cover (12) is plugged and connected. 9. The circuit repairing device according to claim 7, characterized in that, A pouring port (13) is provided on the insulating housing (1), and glue is injected into the accommodating cavity through the pouring port (13); and/or The port (15) is sealed with the wire (101). 10. The circuit repairing device according to claim 7, characterized in that, The insulating housing (1) is provided with a plurality of accommodating cavities, and each of the accommodating cavities is used to connect two of the wires (101); and/or The circuit repairing device comprises a plurality of the insulating casings (1), and the plurality of the insulating casings (1) are connected by an insulating plate (16).

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