CN1855633A - Toothed helical wire structure - Google Patents

Abstract

The invention relates to a dentate spiral wire clamping structure, which comprises a wire connecting part, wherein the wire connecting part is in a hollow tubular shape and is provided with an insertion end and an inner end, at least one tooth row is arranged on the inner side wall of the wire connecting part, each tooth row is formed by arranging a plurality of clamping teeth in a spiral mode along the inner side wall, each clamping tooth is formed by extending inwards from the inner side wall towards the pipe diameter and is provided with an inner end angle close to the inner end and an outer end angle close to the insertion end, a space is formed between each clamping tooth, a clamping groove is formed between two adjacent clamping teeth, and each clamping tooth is provided with a clamping hook so that the clamping hook can be used for clamping wires to be connected. By adopting the structure, the invention can combine the wires to be jointed and clamp the wires without other tools, and has the advantages of simple and convenient operation and labor saving.

Description

Toothed helical wire structure

technical field

The present invention is related to the joining structure of wires, in particular to a toothed spiral clamping structure.

Background technique

Commonly used terminal blocks usually include: a conducting part and a connecting part. The conducting part is plate-shaped and has a through hole for solid connection with the conductor to be connected. The connection part is in the shape of a hollow tube and can accommodate a wire. The connection part has an inner end and an insertion end, and the inner end is connected with the conduction part. When the wire is put into the wiring part, it is necessary to use tools to fix and combine the two. You can use pliers or clips to force the wiring part to deform the wiring part and press the wire; or heat the wire and the wiring part with solder at high temperature. Sticking, the combination of the two must rely on tools, causing inconvenience in construction.

The common method of connecting wires is to twist the wires to be joined together so that the wires can be connected and fixed. However, the winding method is easily affected by the winding skills of the builder, and it is easy to separate; The wires are twisted and twisted together, causing inconvenience in construction.

Contents of the invention

The main purpose of the present invention is to provide a tooth-shaped spiral clamping structure, which has the function of combining and clamping the wires to be joined without relying on tools.

In order to achieve the above purpose, the present invention provides a tooth-shaped spiral clamping structure, which includes a connection part, the connection part is hollow tubular, has an insertion end and an inner end; it is characterized in that: in the connection part At least one row of teeth is provided on the inner wall, and each of the rows of teeth is formed by a plurality of fastening teeth arranged in a spiral manner along the inner side wall, and each of the fastening teeth protrudes from the inner side wall toward the inside of the pipe diameter Each has an inner corner close to the inner end and an outer corner near the insertion end. There is a distance between each of the locking teeth, and a locking groove is formed between two adjacent locking teeth.

Each of the fastening teeth has a top edge, and each top edge is respectively recessed with a concave portion, and a side edge of each concave portion close to the outer corner forms a hook with the top edge of the fastening tooth.

A hook is protrudingly provided at an inner end corner of each said fastening tooth.

Each of the fastening teeth has an inclined top edge, the inner corner of each fastening tooth is slightly higher than the outer corner, and a hook is formed at the inner corner.

The height of each locking tooth protruding from the inner side wall gradually increases from the insertion end to the inner end, and the inner diameter of the connecting part gradually narrows from the insertion end to the inner end. .

The connecting portion is in the shape of a tapered tube, and the inner end is a thinner end.

Because the present invention adopts the structure that the fastening teeth are arranged in a spiral manner in the wiring part, and a fastening groove is formed between two adjacent fastening teeth, the present invention can combine the wires to be joined without relying on other tools. It is fastened, and the wiring is easy to operate, which avoids the inconvenience of using other tools during construction, simplifies the operation of wiring construction, and has the effect of saving working hours.

Description of drawings

Fig. 1 is the expanded view of the first embodiment of the present invention;

Fig. 2 is a sectional view along line 2-2 in Fig. 1;

Fig. 3 cover is the same as Fig. 2, shows the structure of the second embodiment;

Fig. 4 is the same as Fig. 2, showing the structure of the third embodiment;

5 is a perspective view of the appearance of the first embodiment of the present invention;

Fig. 6 is a sectional view along line 6-6 in Fig. 5;

Fig. 7 is a sectional view along line 7-7 in Fig. 6;

Fig. 8 is a schematic diagram of the operation of the present invention, showing the state of screwing in counterclockwise;

Fig. 9 is a schematic diagram of the operation of the present invention, showing the state of anti-rotation in the clockwise direction and being blocked by the hook;

Fig. 10 is a perspective view of the appearance of an insulator according to the first embodiment of the present invention.

Detailed ways

As shown in Fig. 1, Fig. 2, Fig. 5 to Fig. 7 and Fig. 10, the tooth-shaped spiral clamping structure of the first embodiment of the present invention is presented in various views. The present invention includes a conductive part 101 and a wiring Part 103 , the conductive part 101 is in the shape of a plate, which has a through hole 102 for solid connection with the conductor to be joined. A connection part 103, which is hollow tubular, is used to accommodate a wire 112 composed of several wires 113 intertwined with each other. The connection part 103 has an insertion end 104 and an inner end 105, and the inner end 105 is connected to the conduction part 101. The connection portion 103 also has an inner side wall 106, on which a number of tooth rows 107 are arranged, and each tooth row 107 is formed by a plurality of fastening teeth 108 arranged in a spiral manner along the inner side wall 106, and each fastening tooth 108 is formed from the inner side. The wall 106 protrudes toward the inside of the pipe diameter, and the height of each locking tooth 108 protruding from the inner side wall 106 gradually increases from the insertion end 104 to the inner end 105, so that the pipe inner diameter of the connection part 103 is from the insertion end 104 to the inner end 105. From wide to narrow (as shown in Figure 7). In practice, the connection part 103 can also be set in a tapered tubular shape, the inner end 105 of the connection part 103 is a thinner end, and the height of each locking tooth 108 is equal, so that the inner diameter of the connection part 103 is inward from the insertion end 104 End 105 tapers from wide to narrow. Each fastening tooth 108 has an inner corner 109 close to the inner end 105 and an outer corner 110 close to the insertion end 104. There is a distance between each fastening tooth 108, so that a gap is formed between two adjacent fastening teeth. Card slot 111. When the wire 112 is screwed in from the insertion end 104 to the inner end 105 of the connecting portion 103 , the wire 112 is compressed and easily screwed in due to the tapered width. On the top edge of each fastening tooth 108 , near its inner corner 109 , a concave portion 114 is respectively recessed, and two hooks 116 are formed on the top edge of the fastening tooth 108 , one of which is the inner corner 109 . As shown in FIG. 10 , an insulator 115 covers the connection portion 103 so that the connection portion 103 can be insulated from external conductors without interference.

As shown in FIG. 3 , it is an expanded sectional view of the second embodiment of the present invention. Its outline is the same as that of the first embodiment and will not be repeated here. Its difference is: along the top edge of each fastening tooth 208, a hook 216 is respectively protruded at the inner end angle of each fastening tooth 208, and it is roughly in the shape of a narrow angle. A hooking groove 217 is formed between them.

As shown in FIG. 4 , it is an expanded sectional view of the third embodiment of the present invention. Its outline is the same as that of the first embodiment and will not be repeated here. The difference is that each fastening tooth 308 has an inclined top edge 318 respectively, and the inclination direction is from high to low from the inner end angle 309 of each fastening tooth 308 to its outer end angle 310, and each fastening tooth 308 The inner corner 309 forms a hook.

As shown in Figure 8, viewed from the insertion end 104, when the wire 112 is screwed in counterclockwise from the insertion end 104, it is from the outer corner 110 of the locking tooth to the inner corner 109, at this time, the wire 112 Can be screwed into the inner end 105 smoothly.

As shown in Figure 9, viewed from the insertion end 104, when the wire 112 is unscrewed from the inner end 105 in a clockwise direction, it is from the inner end angle 109 of the locking tooth to the outer end angle 110. At this time, the wire 112 The number of wires 113 is fixed by the hook 116, so that the wire 112 cannot be unscrewed smoothly.

The second and third embodiments of the toothed helical clamping structure are generally the same as the first embodiment because of their settings. When the wire is screwed into the inner end from the insertion end of the wiring part, it will produce the same as that shown in Figure 8 of the first example. same function. When the wire is screwed out of the insertion end from the inner end of the connection part, the same function as that shown in FIG. 9 of the first embodiment is produced.

The various embodiments above are used for fastening between wires and terminals, but the present invention can also be used for connection between wires and wires. For example: to use as a terminal, it is to put two or more wires to be joined into the terminal with the spiral clamping tooth structure of the present invention, and rotate the terminal, at this time, each wire to be connected will be It is twisted and wound, and is firmly restrained in the terminal due to the hook of the slot and hook, and will not come out.

To sum up, the present invention can combine the wires to be joined and fix them without relying on other tools. The effect of working hours.

Claims (6)

1, a kind of toothed spiral wire clip structure includes a wire connecting portion, and described wire connecting portion is hollow tubular, has an insertion end and a inner;

It is characterized in that:

On described wire connecting portion madial wall, be provided with at least one denture, each described denture is provided with in a spiral manner along described madial wall by the fixing tooth of majority respectively and forms, each described fixing tooth protrudes out formation in from described madial wall towards caliber, respectively have one near inner inner angle, and the angle, outer end of a close insertion end, each described fixing between cog has a spacing, forms a draw-in groove respectively at two adjacent fixing between cog.

2, toothed spiral wire clip structure as claimed in claim 1, it is characterized in that: each described fixing tooth has an apical margin respectively, each described apical margin is concaved with a recess respectively, and each described recess forms a trip near the side at angle, described outer end and the apical margin of described fixing tooth.

3, toothed spiral wire clip structure as claimed in claim 1 is characterized in that: each described fixing tooth holds the angle to be convexly equipped with a trip within it.

4, toothed spiral wire clip structure as claimed in claim 1 is characterized in that: each described fixing tooth has an apical margin that tilts respectively, and the inner angle of each described fixing tooth is a little more than its angle, outer end, and becomes a trip at described inner dihedral.

5, toothed spiral wire clip structure as claimed in claim 1, it is characterized in that: the height that each described fixing tooth protrudes out from described madial wall by described insertion end to described the inner by short gradually high, the bore of described wire connecting portion from described insertion end to described the inner by wide gradually narrow.

6, toothed spiral wire clip structure as claimed in claim 1 is characterized in that: described wire connecting portion is the Taper Pipe shape, and described the inner is a thinner end.

Images