Opening snap ring for wire butt joint

Abstract

The utility model provides an open snap ring for lead butt joint, which comprises a snap ring body and a snap ring sheet, and the radial section of the snap ring body is an arc section; the number of the clamping ring pieces is multiple, the multiple clamping ring pieces are arranged in the axial direction of the clamping ring body, every two adjacent clamping ring pieces are arranged on the two sides of the clamping ring body in the axial direction, and a gap is formed between every two adjacent clamping ring pieces in the axial direction of the clamping ring body. Compared with the prior art, in the scheme, the butt joint operation of the two wires is realized through the snap ring, the defects of a multi-strand wire twisting method and a straight copper pipe crimping method are avoided, the whole process is time-saving and labor-saving in operation, simple in procedure, convenient and rapid, and the working efficiency of wire butt joint is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary accessories for handling electric wires in electrical maintenance, in particular to an open snap ring for wire butt joint. Background Art

[0002] At present, the methods for on-site maintenance and repair of electrical wire butt joints are the multi-strand wire twisting method and the straight copper tube pressing method.

[0003] In practical applications, it is not difficult to find that when multi-strand wires are butt-jointed by the twisting method, it is necessary to make accurate size calculations for the stripped copper wire parts. When cross-twisting, each copper wire needs to be wound, which takes a relatively long time, is laborious and time-consuming, and affects work efficiency. When using the straight copper tube pressing method to butt-joint wires, the diameter of the copper tube corresponding to the wire model is usually larger than that of the actual wire. That is, there is a certain (relatively large) gap when the straight copper tube is pressed. The commonly used method is to fill it with short-section copper wires and then use a wire pressing pliers for pressing. After pressing, the copper tube is deformed due to pressing, and burrs are extruded on the side, which is not conducive to insulation wrapping and requires filing for grinding. In addition, the straight copper tube pressing method generally requires two people to cooperate for operation.

[0004] Therefore, both of the above two wiring methods have certain defects, are time-consuming and laborious, and the processes are cumbersome, which is not conducive to improving work efficiency. Especially for the straight copper tube pressing method, a wire pressing pliers needs to be carried every time. These wiring methods have certain defects in the actual operation process and are not conducive to improving work efficiency. Summary of the Invention

[0005] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide an open snap ring for wire butt joint, which is used to solve the problems of time-consuming, laborious, cumbersome process and low efficiency in the process of electrical wire butt joint treatment in the prior art.

[0006] To achieve the above purpose and other related purposes, the present utility model provides an open snap ring for wire butt joint, including:

[0007] A snap ring body, the cross-section of the snap ring body along the radial direction is an arc segment;

[0008] Snap ring pieces, there are several snap ring pieces, and several said snap ring pieces are arranged along the axial direction of the snap ring body. Adjacent two snap ring pieces are arranged on both sides of the snap ring body along the axial direction, and there is a gap between adjacent two snap ring pieces along the axial direction of the snap ring body.

[0009] Optionally, the snap ring body and the snap ring pieces are of an integral structure, and the snap ring is U-shaped in the radial view along the snap ring body.

[0010] Optionally, the length of the arc segment in the radial direction of the snap ring body is less than 1 / 3 of the circumference of this arc segment.

[0011] Optionally, the length of the snap ring piece in the radial direction along the snap ring body is greater than 2 / 3 of the circumference of the arc segment in the radial direction of the snap ring body.

[0012] Optionally, a plurality of the snap ring pieces are arranged at equal intervals along the axial direction of the snap ring body.

[0013] Optionally, the number of the snap ring pieces is an even number.

[0014] Optionally, the number of the snap ring pieces is 4 or 6 or 8.

[0015] Optionally, the diameter of the arc segment in the radial direction of the snap ring body is set according to the wire specification, so that the snap ring has multiple specifications.

[0016] In the solution implemented by the above-mentioned open snap ring for wire butt joint, when it is necessary to butt joint electrical wires during maintenance, strip the insulation parts of the two wires to be butted. The length of the stripped insulation part on the wire is slightly more than about 3 millimeters of the axial length of the snap ring body. Overlap the two stripped wires and place them into the snap ring body, and appropriately adjust the distance between the two ends of the wires; press one end of the snap ring piece of the snap ring by hand and bend the snap ring piece along the radial direction of the wire. The snap ring piece presses and wraps the wire. The snap ring piece is relatively thin and easy to bend, and then bend the remaining snap ring pieces along the radial direction of the wire in turn; then use wire cutters to press the snap ring piece along the bending direction of the snap ring piece so that the snap ring piece presses and wraps the wire tightly. Finally, bend the copper wires exposed at both axial ends of the snap ring body. The bent copper wires clamp two steps in the axial direction of the snap ring body to form a ferrule wire; when the wire is a multi-strand hard core wire, two to three wires at both ends can be selected as the ferrule wires, which increases the tensile strength, and then the wire butt joint can be completed. Compared with the prior art, in this solution, when using the snap ring to realize the butt joint operation of two wires, the defects of the multi-strand wire twisting method and the straight copper tube pressing method are avoided, and the whole process is time-saving and labor-saving, with simple processes, convenient and fast, greatly improving the working efficiency of wire butt joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a top view of an open snap ring for wire butt joint shown in an exemplary embodiment;

[0018] Figure 2 Shown is a front view of an open snap ring for wire butt joint shown in an exemplary embodiment;

[0019] Figure 3 Shown is a side view of an open snap ring for wire butt joint shown in an exemplary embodiment;

[0020] Figure 4Shown is a top-down unfolded view of an open snap ring for wire butt joint shown in an exemplary embodiment;

[0021] Figure 5 Shown is a state diagram of the usage process of an open snap ring for wire butt joint shown in an exemplary embodiment;

[0022] Figure 6 Shown is a completed state diagram of the usage of an open snap ring for wire butt joint shown in an exemplary embodiment.

[0023] Description of the reference numerals in the embodiment includes:

[0024] Snap ring body 10, arc segment 11, snap ring piece 12, gap 13, wire 20, blanking head wire 21. Detailed implementation manners

[0025] The following uses specific specific examples to illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0026] The following will describe the implementation manners of the present invention with reference to the drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, rather than for limiting the protection scope of the present invention.

[0027] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the components related to the present invention are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0028] In the following description, a large number of details are discussed to provide a more thorough explanation of the embodiments of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present invention difficult to understand.

[0029] As Figures 1 to 6 shown, in an exemplary embodiment, an open snap ring for wire butt joint includes:

[0030] A snap ring body 10, the cross-section of the snap ring body 10 along the radial direction is an arc segment 11;

[0031] Snap ring pieces 12, there are several snap ring pieces 12, and the several snap ring pieces 12 are arranged along the axial direction of the snap ring body 10. Adjacent two snap ring pieces 12 are arranged on both sides of the snap ring body 10 along the axial direction, and there is a gap 13 between adjacent two snap ring pieces 12 along the axial direction of the snap ring body 10.

[0032] Specifically, the snap ring body 10 and the snap ring pieces 12 are metal sheets with certain elasticity, and the snap ring pieces 12 can be bent to wrap the wire 20 during use. The size of the arc segment 11 of the snap ring body 10 in the radial direction and the length of the snap ring pieces 12 along the radial direction of the snap ring body 10 can be set according to the outer diameter of the wire 20, so as to better wrap the outside of the wire 20. There is a certain gap 13 between two adjacent snap ring pieces 12 to prevent the phenomenon of overlapping between each piece during the actual operation of bending the snap ring pieces 12 to press the wire, so that it will not affect the contact between the snap ring pieces 12 and the multi-core wire 20 and affect the crimping. The number of the snap ring pieces 12 is determined according to the specification size of the butt joint wire 20. The larger the specification of the wire 20, the more corresponding pieces there are, the longer the length of the snap ring pieces 12, and the larger the contact surface between the snap ring pieces 12 and the wire 20, increasing the electrical conductivity of the joint part and not generating heat due to poor contact.

[0033] In the specific implementation process, when it is necessary to butt joint the electrical wire 20 during maintenance, strip the insulating parts of the two wires 20 to be butted. The length of the insulating parts stripped from the wires 20 is slightly more than about 3 millimeters of the axial length of the snap ring body 10. Overlap the two stripped wires 20 and put them into the snap ring body 10, and appropriately adjust the distance between the two ends of the wires 20, as Figure 5 shown; press one end of the snap ring pieces 12 of the snap ring by hand, bend the snap ring pieces 12 along the radial direction of the wire 20, the snap ring pieces 12 press and wrap the wire 20, and the snap ring pieces 12 are relatively thin and easy to bend, and then bend the remaining snap ring pieces 12 along the radial direction of the wire 20 in turn; then use wire cutters to spin-press the snap ring pieces 12 along the bending direction of the snap ring pieces 12 to make the snap ring pieces 12 tightly press and wrap the wire 20. Finally, bend the copper wires 20 exposed at both axial ends of the snap ring body 10, and the bent copper wires clamp two steps of the snap ring body 10 axially to form a ferrule wire 21; when the wire 20 is a multi-strand hard core wire, two to three wires at both ends can be selected as the ferrule wire 21, so as to increase the tensile strength, as Figure 6As shown, the butt joint of the wire 20 can be completed. When the wire 20 is multi-core flexible, the part of the wire 20 that is more than the opening snap ring is pressed under the first piece at both ends, which can also increase the tensile strength.

[0034] Using the snap ring in this solution can conveniently and quickly solve the problems existing in the conventional wire 20 butt joint method, and well solve the defects of long operation time, cumbersome processes, more auxiliary tools used, and affecting work efficiency; at the same time, it can simplify some operations during the butt joint of the wire 20, reduce the operation difficulty, is easy to operate, simply and quickly complete the butt joint of the multi-core wire 20, improve the work efficiency of maintenance and repair, and has practical popularization value.

[0035] In some embodiments, the snap ring body 10 and the snap ring piece 12 are of an integral structure, and the radial view of the snap ring along the snap ring body 10 is U-shaped. For example, Figure 2 As shown, the integral structure can make this snap ring convenient to manufacture and more firm to use. The front view of the snap ring is U-shaped, which is convenient to put the wire 20 into the upper end opening of the U-shaped, and then wrap the wire 20.

[0036] In some embodiments, the length of the arc section 11 of the snap ring body 10 in the radial direction is less than 1 / 3 of the circumference of this arc section 11. For example, Figure 2 As shown, the length of the arc section 11 of the snap ring body 10 in the radial direction can be determined according to the specifications of the butt joint wire 20. For larger wire 20 specifications, the bottom snap ring body 10 is relatively larger. The actual width of the side of the snap ring body 10 part is not greater than one-third of the circumference of the circle, mainly to make it more labor-saving and convenient when overcoming the bending deformation of the snap ring piece 12 during operation.

[0037] In some embodiments, the length of the snap ring piece 12 along the radial direction of the snap ring body 10 is greater than 2 / 3 of the circumference of the arc section 11 of the snap ring body 10 in the radial direction. For example, Figures 2 to 5 As shown, the snap ring piece 12 needs to be bent to wrap the wire 20, so the length of the snap ring piece 12 along the radial direction of the snap ring body 10 needs to be longer.

[0038] In some embodiments, several snap ring pieces 12 are arranged at equal intervals along the axial direction of the snap ring body 10. For example, Figure 1 、 Figures 3 to 6 As shown, the snap ring pieces 12 are arranged at equal intervals along the axial direction of the snap ring body 10, making the butt joint of the wire 20 more regular after using the snap ring.

[0039] In some embodiments, the number of the snap ring pieces 12 is an even number. For example, Figure 1 、 Figures 3 to 6 As shown, an even number is convenient to keep the number of snap ring pieces 12 on both sides of the snap ring body 10 the same, and the action of the snap ring pieces 12 is more balanced after the butt joint of the wire 20.

[0040] In some embodiments, the number of the snap ring pieces 12 is 4, 6 or 8. For example, Figure 1 , Figures 3 to 6 as shown, according to the actual specifications of the wire 20, it is more appropriate that the number of the snap ring pieces 12 is 4, 6 or 8. In the specific implementation of this embodiment, 6 snap ring pieces 12 are selected.

[0041] In some embodiments, the diameter of the arc segment 11 in the radial direction of the snap ring body 10 is set according to the specifications of the wire 20, so that the snap ring has multiple specifications. The diameter of the arc segment 11 in the radial direction of the snap ring body 10 and the length of the snap ring piece 12 are both determined according to the specifications of the wire 20. In order to make the applicable range of this snap ring wider, multiple specifications of snap rings can be designed corresponding to the specifications of the wire 20, and the corresponding specifications can be directly selected during use.

[0042] The above embodiments merely illustrate the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An open snap ring for wire butt joint, characterized in that Including: A snap ring body, the cross-section of the snap ring body along the radial direction is an arc segment; Snap ring pieces, there are several snap ring pieces, and the several snap ring pieces are arranged along the axial direction of the snap ring body. Two adjacent snap ring pieces are arranged on both sides of the snap ring body along the axial direction, and there is a gap between two adjacent snap ring pieces along the axial direction of the snap ring body.

2. The open snap ring for wire butt joint according to claim 1, characterized in that: The snap ring body and the snap ring pieces are of an integral structure, and the snap ring is U-shaped in the radial view along the snap ring body.

3. The open snap ring for wire butt joint according to claim 2, characterized in that: The length of the arc segment of the snap ring body in the radial direction is less than 1 / 3 of the circumference of the arc segment.

4. The open snap ring for wire butt joint according to claim 3, characterized in that: The length of the snap ring piece along the radial direction of the snap ring body is greater than 2 / 3 of the circumference of the arc segment of the snap ring body in the radial direction.

5. The open snap ring for wire butt joint according to claim 4, characterized in that: The several snap ring pieces are arranged at equal intervals along the axial direction of the snap ring body.

6. The open snap ring for wire butt joint according to claim 1, wherein: The number of the snap ring pieces is an even number.

7. The open snap ring for wire butt joint according to claim 6, characterized in that: The number of the snap ring pieces is 4 or 6 or 8.

8. A split retaining ring for wire butt joint according to any one of claims 1-7, characterized in that: The diameter of the arc segment of the snap ring body in the radial direction is set according to the wire specification, so that the snap ring has multiple specifications.

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