Crimping sleeve for power transmission and distribution line

Abstract

The utility model discloses a crimping sleeve for a power transmission and distribution line, which comprises a connecting sleeve, crimping rings are fixedly connected to two sides of the connecting sleeve, three groups of line through holes are arranged in the middle of the connecting sleeve, nine groups of sliding grooves communicated with the line through holes are arranged in the connecting sleeve, the three groups of sliding grooves are arranged outside one group of line through holes at equal angles, and the crimping rings are fixedly connected with the connecting sleeve. Convex ribs are slidably connected into the sliding grooves, pushing grooves are formed in the two sides of each sliding groove, connecting lugs are fixedly connected to the upper portions of the two sides of each convex rib, sliding rods are slidably connected into the connecting lugs, the sliding rods are fixedly connected with the inner walls of the pushing grooves, and springs are fixedly connected between the outer sides of the connecting lugs and the inner walls of the pushing grooves. And the spring sleeves the outer side of the sliding rod, so that three strands of wire harnesses in the distribution wire can be respectively connected, and the connection accuracy can be ensured according to the sizes of the wire harnesses.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric wire connection, specifically to a kind of crimp sleeve for power transmission and distribution wire. BACKGROUND

[0002] The crimp sleeve is applied to the principle of mechanical cold-state crimping, and the connecting sleeve around the two ends of the conductor is pressed on the two ends of the conductor under certain pressure through the corresponding die, so that the metal interpenetration between the conductor and the connecting pipe is formed, thereby forming a conductive path. During the crimping process, the metal between the connecting pipe and the conductor is plastically deformed by the action of the crimping die, forming a tight metal connection. This connection has good electrical conductivity and mechanical strength, which can meet the requirements of power transmission.

[0003] The existing crimp sleeve fails to connect the ground wire, hot wire and zero wire in the power distribution line separately, and the connection of the three groups of lines is chaotic. The wrong wiring method may also cause internal circuit short circuit or withstand overvoltage of electrical equipment, thereby damaging electronic components. These damages may trigger the action of the protection device, causing the equipment to malfunction, and the ground wire, hot wire and zero wire in different power distribution lines have different sizes, which causes inaccurate contact during line connection. SUMMARY

[0004] The utility model aims at providing a kind of crimp sleeve for power transmission and distribution wire to solve the problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of crimp sleeve for power transmission and distribution wire, including connecting sleeve, the connecting sleeve both sides are fixedly connected with crimp ring, the connecting sleeve middle part is equipped with three groups of wire holes, the connecting sleeve is internally provided with nine groups of sliding grooves communicated with wire hole, three groups of sliding grooves are equiangularly arranged outside one group of wire hole, the sliding groove is slidably connected with the convex rib inside, the sliding groove both sides are equipped with push groove, the convex rib both sides upper portion is fixedly connected with lug, the lug is slidably connected with sliding rod inside, the sliding rod is fixedly connected with the inner wall of push groove, the spring is fixedly connected between the lug outer side and the inner wall of push groove, and the spring is sleeved on the outer side of sliding rod.

[0006] Preferably, the connecting sleeve and crimp ring are made of high-strength elastic copper alloy, and the crimp ring is arranged in a structure with wide outer part and narrow inner part.

[0007] Preferably, the crimp ring is fixedly connected with a plurality of sawteeth on the inner side of both ends.

[0008] Preferably, the both ends of the convex rib are arranged as inclined tables.

[0009] Preferably, the connecting sleeve is filled with conductive powder.

[0010] Preferably, the connecting sleeve is provided with an identification area on one side of the outer part.

[0011] Preferably, the connecting sleeve and the crimping ring are subjected to galvanizing treatment.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1、 the utility model discloses a distribution line, the firewire, ground wire and zero line in the distribution line are respectively passed from three groups of wire through holes, the guide boss expands to both sides in the wire insertion process, the spring drives the boss to move to the wire through hole center through pushing the ear, thereby fixing the wire harness of different sizes in the wire through hole middle part, realizing the accurate connection of two groups of wire harness, can connect three wire harnesses in the distribution line respectively, and can guarantee the accuracy of connection according to the wire harness size.

[0014] 2、 the utility model discloses still through the crimping ring of pressing both sides, the sawtooth can provide additional occlusal force and friction, thereby enhancing the connecting strength between the wire and the crimping ring, guaranteeing the firmness of connection. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the first perspective three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is the second perspective three-dimensional structure section view of the utility model;

[0017] Figure 3 It is the third perspective three-dimensional structure section view of the utility model;

[0018] Figure 4 It is the fourth perspective push groove structure enlarged view of the utility model.

[0019] In the drawing: 1, connecting sleeve;2, crimping ring;3, wire through hole;4, sliding groove;5, push groove;6, ear;7, boss;8, inclined table;9, sliding rod;10, spring;11, sawtooth;12, identification area. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-4The utility model provides a kind of technical scheme: a kind of crimping sleeve for power transmission and distribution line, including connecting sleeve 1, connecting sleeve 1 both sides are fixedly welded with crimping ring 2, three groups of wire-through holes 3 are set in the middle of connecting sleeve 1, fire wire, ground wire and zero wire in the inside of power distribution line are respectively passed from three groups of wire-through holes 3, the connection of each strand is realized, nine groups of sliding grooves 4, which are communicated with wire-through hole 3, are set in the inside of connecting sleeve 1, three groups of sliding grooves 4 are set at equal angle outside one group of wire-through hole 3, convex rib 7 is slidably installed in the inside of sliding groove 4, pushing groove 5 is set in the both sides of sliding groove 4, lug 6 is fixedly welded on the both sides upper portion of convex rib 7, sliding rod 9 is slidably connected in the inside of lug 6, sliding rod 9 is fixedly welded with the inner wall of pushing groove 5, spring 10 is fixedly welded between the outer side of lug 6 and the inner wall of pushing groove 5, spring 10 is set on the outer side of sliding rod 9, spring 10 moves lug 6, and drives convex rib 7 to move to the center of wire-through hole 3, so that wire harness of different sizes is fixed in the middle part of wire-through hole 3;

[0022] Connecting sleeve 1 and crimping ring 2 adopt high-strength elastic copper alloy, have good mechanical strength and conductivity, crimping ring 2 is set as outer wide inner narrow structure, can provide uniform crimping force distribution, so that the wire can be uniformly stressed in the crimping process, thereby avoiding the damage of the wire caused by excessive local pressure; a plurality of sawteeth 11 are fixedly welded on the inner side of both ends of crimping ring 2, which can provide additional biting force and friction force, thereby enhancing the connection strength between the wire and the crimping ring 2; the both ends of convex rib 7 are provided with inclined tables 8, which facilitate the insertion of the wire and guide the expansion of convex rib 7 to both sides during the insertion process, and adapt to the diameter of the wire; the inside of connecting sleeve 1 is filled with conductive powder to reduce the contact resistance and improve the conductivity; a marking area 12 is formed on one side of the outside of connecting sleeve 1, which is used for marking the sleeve model, the applicable wire specification range and other information, facilitating management and use; the inner and outer walls of connecting sleeve 1 and crimping ring 2 are galvanized to improve the corrosion resistance of connecting sleeve 1 and crimping ring 2.

[0023] Working principle: in use, the fire wire, ground wire and zero wire in the inside of power distribution line are respectively passed from three groups of wire-through holes 3, the wire is inserted into the wire-through hole 3, and the convex rib 7 is guided to expand to both sides during the insertion process, the spring 10 moves the lug 6, and drives the convex rib 7 to move to the center of the wire-through hole 3, so that the wire harness of different sizes is fixed in the middle part of the wire-through hole 3, and the precise connection of the two groups of wire harness is realized, by pressing the crimping ring 2 on both sides, the sawteeth 11 can provide additional biting force and friction force, thereby enhancing the connection strength between the wire and the crimping ring 2.

[0024] It is to be noted that, in the present document, relational terms such as first and second and the like can be 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. Moreover, 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 can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0025] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A compression sleeve for power lines, comprising a connecting sleeve (1), characterised in that: The connecting sleeve (1) is fixedly connected with crimping rings (2) on both sides, three groups of wire through holes (3) are arranged in the middle of the connecting sleeve (1), nine groups of sliding grooves (4) communicated with the wire through holes (3) are arranged in the connecting sleeve (1), three groups of the sliding grooves (4) are arranged at equal angles outside one group of the wire through holes (3), convex ribs (7) are slidably connected inside the sliding grooves (4), push grooves (5) are arranged on both sides of the sliding grooves (4), lug ears (6) are fixedly connected on the upper sides of both sides of the convex ribs (7), sliding rods (9) are slidably connected inside the lug ears (6), the sliding rods (9) are fixedly connected with the inner walls of the push grooves (5), springs (10) are fixedly connected between the outer sides of the lug ears (6) and the inner walls of the push grooves (5), and the springs (10) are sleeved on the outer sides of the sliding rods (9).

2. A compression sleeve for a power line according to claim 1, characterized in that: The connecting sleeve (1) and the crimping rings (2) are made of high-strength elastic copper alloy, and the crimping rings (2) are arranged in a structure of wide outside and narrow inside.

3. A compression sleeve for power lines as claimed in claim 1, characterized in that: A plurality of groups of sawteeth (11) are fixedly connected to the inner sides of both ends of the crimping rings (2).

4. A compression sleeve for power lines as claimed in claim 1, characterized in that: Both ends of the convex ribs (7) are arranged as inclined tables (8).

5. A compression sleeve for power lines as defined in claim 1, characterized in that: The connecting sleeve (1) is filled with conductive powder.

6. A compression sleeve for power lines as defined in claim 1, characterized in that: An identification area (12) is arranged on one side of the outer side of the connecting sleeve (1).

7. A compression sleeve for power lines according to claim 1, characterized in that: The inner and outer walls of the connecting sleeve (1) and the crimping rings (2) are subjected to galvanizing treatment.

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