CN201230068Y

CN201230068Y - Connecting terminal having earthing protection

Info

Publication number: CN201230068Y
Application number: CNU2008201204468U
Authority: CN
Inventors: 丁高松
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-27
Filing date: 2008-06-27
Publication date: 2009-04-29
Anticipated expiration: 2018-06-27

Abstract

The utility model relates to a connecting terminal with grounding protection, which comprises an insulation body, a current carrier, a clamp spring and a grounding body. The grounding body is provided with a cantilever; the cantilever is characterized in that the cantilever on the grounding body is a flexible body and comprises a left cantilever, a right cantilever and a beam; the left cantilever presents an inverse L shape; a first wedge-shaped surface is arranged at the inner side of the bending part of the L-shaped left cantilever; the right cantilever presents an inverse J shape; a second wedge-shaped surface is arranged at the upper side of the hooking part of the J-shaped left cantilever; and the beam is arranged towards the side with the cantilever. Because the wedge-shaped surfaces are arranged on the flexible left cantilever and the flexible right cantilever, and the shortest distance between the wedge-shaped surface of the right cantilever and the beam arranged near the right cantilever is less than the thickness of the guide rail mounting surface, the rebounding force of the wedge-shaped surfaces can ensure the reliable contact between the surface of wedge-shaped surface of the grounding body and the surface guide rail mounting surface during the installation process.

Description

The binding post of band ground protection

Technical field

The utility model relates to a kind of binding post, particularly a kind of binding post with ground protection.

Background technology

The terminal of band ground protection generally has an earth electrode; usually this earth electrode is to be connected on the metal guide rail; metal guide rail can be installed on the external shell of various electric equipments again; this binding post plays the effect of protection equipment usually; under the circuit abnormal state; by overload current being introduced the earth by metal guide rail, play the purpose of protection electric equipment from the binding post of band ground protection.

Have the binding post of such band ground protection now; as the patent No. is that the Deutsche Bundespatent of DE7712331 discloses a kind of binding post with earth electrode; the earth electrode of this binding post has two cantilevers that can be fastened on the guide rail; but, consider that installation dimension needs an end of cantilever to reserve certain space, therefore; after the cantilever in left side and guide rail are fitted fully; just have the space between right side cantilever and the guide pass, can not be fully and guide pass fit, can't realize effective conducting.So above-mentioned patent also is connected with a stainless steel shell fragment at right side cantilever one end, after the both sides cantilever all is fastened on the guide rail, can guarantee that left and right sides cantilever and guide rail were win and cooperate, realize conductive path.But the terminal of this structure is because need rivet a stainless steel shell fragment on earth electrode, and the bulk in earth electrode cantilever position own is less, and manufacture difficulty is big, and riveted joint is gone up behind the stainless steel shell fragment and between the guide rail contact little, the reliability of conducting electricity is not high.Therefore, also there is certain problem in actual applications in the binding post of said structure, needs further to improve.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of contact reliability height and manufacturing procedure simply with the binding post of ground protection at above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: the binding post of this band ground protection includes

One insulating body;

Be arranged on the carrying object in the described insulating body;

With the jump ring that described carrying object is fixedly linked, has the elastic interface that is used for the blocking lead; And

One earth electrode is fixedly connected on the described carrying object directly or indirectly, and has the cantilever that can be fastened on the guide rail installed surface;

It is characterized in that: described earth electrode cantilever is an elastomer, include left cantilever, right cantilever and crossbeam arm, described left cantilever is inverted L shape, has first lozenges in the L of this left side cantilever type clubfoot inboard, described right cantilever then is the J type, have second lozenges at the J of this right side cantilever type hook pin upside, described crossbeam arm is towards described right cantilever one side setting.

For making the cantilever of earth electrode to obtain to cooperate comparatively closely with guide rail, further improve contact reliability, the beeline between second lozenges of the free end of described crossbeam wall and described right cantilever is less than the thickness of described guide rail installed surface

Quantity difference according to wiring, common ground connection product has one to one, a pair of two and a pair of third-class connected mode, therefore, described carrying object is for having two at least, for easy to connect, can be separately positioned on the both sides of described insulating body, different carrying objects is connected on the same conducting strip jointly, the number of described jump ring and described carrying object number correspondence.

Earth electrode directly is connected with carrying object for convenience, and described earth electrode can directly be welded on the described conducting strip, and earth electrode just can directly be realized linking to each other with the conduction of each carrying object by conducting strip.

In order to regulate with easy for installation, described insulating body also offers jump ring adjustment hole and lead patchhole respectively in the position of described jump ring of correspondence and carrying object, jump ring can be sealed by the jump ring adjustment hole and to open, be fastened in the carrying object thereby will seal by jump ring from the lead that the lead patchhole inserts.

Compared with prior art, advantage of the present utility model is: original wiring body is improved, on the cantilever of the rubber-like left and right sides, designed lozenges, and, beeline between the crossbeam arm that the lozenges of right cantilever and close this right side cantilever are provided with is less than the thickness of guide rail installed surface, when mounted, can guarantee that the lozenges surface of earth electrode reliably contacts with the surface of guide rail installed surface, improve the contact reliability of wiring body by the bounce of lozenges; On the other hand,, realized the integral type design of cantilever, reduced production process, reduced cost because do not need riveted joint stainless steel shell fragment on cantilever in addition.

Description of drawings

Fig. 1 is the three-dimensional mounting structure schematic diagram of the utility model embodiment.

Fig. 2 is the earth electrode Facad structure schematic diagram of the utility model embodiment.

Fig. 3 is the installation method schematic diagram of earth electrode shown in Figure 2.

Fig. 4 is the assembling assumption diagram of earth electrode, carrying object and the jump ring of the utility model embodiment.

Fig. 5 is one the mode of connection schematic diagram of the utility model embodiment.

Fig. 6 is two mode of connection schematic diagrames of the utility model embodiment.

Fig. 7 is three mode of connection schematic diagrames of the utility model embodiment.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Embodiment one, referring to Fig. 1～Fig. 5:

As Fig. 1, shown in Figure 4, the binding post of the band ground protection of present embodiment includes plastic insulation body 1, carrying object 2, jump ring 3 and can be connected to earth electrode 4 on the installed surface 5 of U type guide rail 5.Wherein, insulating body 1 is respectively arranged with the carrying object 2 that is used to conduct electricity in the left and right sides, be rigidly connected by conducting strip 6 between the carrying object 2 of both sides, each carrying object 2 correspondence again is connected with a jump ring 3, jump ring 3 has hollow elastic interface 31, carrying object 2 has contact 21, and elastic interface 31 can be socketed on the contact 21 and jump ring 3 is linked to each other with carrying object 2 one sides closely, referring to Fig. 4.From side extruding jump ring 3, can make elastic interface 31 break away from contact 21.The structure of jump ring and carrying object and connected mode are routine techniques, are not emphasis of the present utility model, are not described further at this.

In addition, insulating body 1 also offers jump ring adjustment hole 11 and lead patchhole 12 respectively in the position of corresponding jump ring 3 and carrying object 2, the reed 32 that can promote jump ring 3 by jump ring adjustment hole 11 dwindles elastic interface 31, simultaneously, the lead (not shown) can be penetrated through lead patchhole 12, and be clamped between the contact 21 of the reed 32 of jump ring 3 and carrying object 2.

As Fig. 2, shown in Figure 3, earth electrode 4 has the elastic cantilever on the installed surface 51 that can be fastened on guide rail 5, particularly, include left cantilever 41, right cantilever 42 and crossbeam arm 43, wherein, left side cantilever 41 is inverted L shape, has first lozenges 411 in the L of this left side cantilever 41 type clubfoot inboard, right 42 on cantilever is the J type, has second lozenges 421 at the J of this right side cantilever 42 type hook pin upside, crossbeam arm 43 is towards mutually described right cantilever 42 1 side horizontally sets, and, form a groove structure between second lozenges 421 of the free end 431 of crossbeam wall 43 and right cantilever 42, and the beeline H of the free end 431 of this crossbeam wall 43 and second lozenges 421 of right cantilever 42 is less than installed surface 51 thickness T of guide rail 5.

During installation, earlier will be by a wherein side installed surface 51 of the groove alignment guide rail 5 that forms between second lozenges 421 of right cantilever 42 and the crossbeam wall 43, be state as shown in Figure 3, because itself has elasticity cantilever, under the guide effect of second lozenges 421, the hook pin of right cantilever 42 can be fastened on the installed surface 51 tightly, then, again according to direction shown in Figure 3 installed surface 51 snappings with earth electrode 4 past guide rail 5 opposite sides, at this moment, rely on the guide effect of first lozenges 411 of left cantilever 41, two cantilevers of earth electrode 4 all are adjacent to the installed surface 51 at guide rail 5, realize connecting comparatively reliably between guide rail 5 and the earth electrode 4.

As shown in Figure 5, be the mode of connection schematic diagram of present embodiment, this mode of connection belongs to structure one to one, and a pair of carrying object 2 and a pair of jump ring 3 promptly only are installed in the insulating body 1.

Embodiment two, referring to Fig. 6:

Different with embodiment one is, the mode of connection of embodiment two is a pair of two, promptly is provided with a carrying object 2 and corresponding jump ring 3 in the left side of insulating body 1, and then corresponding setting has two other carrying object 2 and jump ring 3 on the right side of insulating body 1.

Embodiment three, referring to Fig. 7:

Present embodiment adopts is a pair of three the mode of connection, is respectively arranged with two carrying objects 2 and the jump ring 3 corresponding with corresponding carrying object in the left and right sides of insulating body 1.

In sum, the utility model improves original wiring body, has designed lozenges on the cantilever of the rubber-like left and right sides, has not only improved the contact reliability of wiring body, and that it makes is easier for installation.Because do not need riveted joint stainless steel shell fragment on cantilever in addition, realized the integral type design of cantilever, reduced production process, reduced cost.

Claims

1, a kind of binding post with ground protection includes

One insulating body (1);

Be arranged on the carrying object (2) in the described insulating body (1);

With the jump ring (3) that described carrying object (2) is fixedly linked, has the elastic interface (31) that is used for the blocking lead; And

One earth electrode (4) is fixedly connected on the described carrying object (2) directly or indirectly, and has the cantilever on the installed surface (51) that can be fastened on guide rail (5);

It is characterized in that: the cantilever on the described earth electrode (4) is an elastomer, include left cantilever (41), right cantilever (42) and crossbeam arm (43), described left cantilever (41) is inverted L shape, L type clubfoot inboard at this left side cantilever (41) has first lozenges (411), described right cantilever (42) then is the J type, J type hook pin upside at this right side cantilever (42) has second lozenges (421), and described crossbeam arm (43) is towards described right cantilever (42) one side settings.

2, the binding post of band ground protection according to claim 1 is characterized in that: the beeline (H) between the free end (431) of described crossbeam wall (43) and second lozenges (421) of described right cantilever (42) is less than the thickness (T) of the installed surface (51) of described guide rail (5).

3, the binding post of band ground protection according to claim 1; it is characterized in that: described carrying object (2) has two at least; be separately positioned on the both sides of described insulating body (1); different carrying object (2) is connected on the same conducting strip (6) jointly, the number of described jump ring (3) and described carrying object (2) number correspondence.

4, the binding post of band ground protection according to claim 3 is characterized in that: described earth electrode (4) is welded on the described conducting strip (6).

5, according to claim 1 or 2 or the binding post of 3 or 4 described band ground protections, it is characterized in that: described insulating body (1) also offers jump ring adjustment hole (11) and lead patchhole (12) respectively in the position of described jump ring of correspondence (3) and carrying object (2).