CN217521926U - Leakage protection switch for power transmission line - Google Patents

Abstract

The utility model provides a leakage protection switch for transmission line relates to electrical components technical field, include: the cable inlet structure is used for connecting a cable and a cable inlet contact; the inlet wire groove sets up on the shell, the inlet wire structure can insert the inlet wire groove and with the inlet wire contact is connected. The wire inlet structure 2 is inserted into the wire inlet groove behind the connecting wire and is connected with the inlet wire electric shock, and the wiring department is protected, effectively avoids damaging and causes the electric shock accident.

Description

Leakage protection switch for power transmission line

Technical Field

The utility model belongs to the technical field of electrical components technique and specifically relates to a leakage protection switch for transmission line is related to.

Background

The leakage protection switch is a switch for timely disconnecting a circuit when equipment has a leakage fault and a fatal danger human body electric shock occurs. The leakage current or the neutral point-to-ground voltage change generated by the leakage current is used as an action signal, and the power supply can be effectively cut off after the action, so that the personal safety is guaranteed.

The existing leakage protection switch is easy to damage and cause electric shock accidents because the wiring part is exposed outside.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a leakage protection switch for transmission line will work a telephone switchboard the protection of department, effectively avoid damaging and cause the electric shock accident, have higher practical value.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a pair of a leakage protection switch for transmission line, include:

a housing;

the wire inlet structure is used for connecting a wire and a wire inlet contact;

and the wire inlet groove is arranged on the shell, and the wire inlet structure can be inserted into the wire inlet groove and is connected with the wire inlet contact.

Optionally, the method further comprises:

and the incoming line locking structure is used for fixing the incoming line structure, and the incoming line structure is arranged on the inner wall of the incoming line groove in a sliding manner.

Optionally, the incoming line locking structure comprises:

the threaded through hole is arranged on the inner wall of the wire inlet groove;

and the screw is arranged in the threaded through hole and can be tightly abutted against the wire inlet structure.

Optionally, the method further comprises:

the sliding rod is connected with the wire inlet structure;

the first sliding groove is formed in the inner wall of the wire inlet groove, and the sliding rod is arranged in the first sliding groove in a sliding mode.

Optionally, the method further comprises:

and the clamping structure is arranged on the back surface of the shell and is used for clamping the installation position.

Optionally, the clamping structure comprises:

the upper clamping plate is connected with the back surface of the shell in a sliding way;

the lower clamping plate is connected with the back surface of the shell in a sliding way;

and the spring is respectively connected with the upper clamping plate and the lower clamping plate.

Optionally, the method further comprises:

and the air holes are formed in the shell.

Optionally, the housing is made of an insulating material.

The utility model provides a technical scheme can include following beneficial effect:

the utility model provides a pair of a leakage protection switch for transmission line inserts the inlet wire inslot behind the inlet wire structure connecting wire and is connected with the inlet wire electric shock, and the department of will working a telephone switchboard protects, effectively avoids damaging and causes the electric shock accident.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic front structural diagram of an earth leakage protection switch for a power transmission line according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a back structure of an earth leakage protection switch for a power transmission line according to an embodiment of the present invention.

In the figure: 1. a housing; 2. a wire inlet structure; 3. a wire inlet groove; 4. a screw; 5. a slide bar; 6. an upper splint; 7. a lower splint; 8. and (4) air holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A specific embodiment of the utility model provides a leakage protection switch for transmission line, as shown in fig. 1 and fig. 2, include: shell 1, inlet wire structure 2 and inlet wire groove 3, wherein:

the shell 1 is used for protecting an internal leakage protection module, the leakage protection module is a common leakage protection structure for a leakage protection switch, the leakage protection structure comprises an incoming line contact and an outgoing line contact, an accessed electric wire is electrically connected with the incoming line contact, the outgoing electric wire is electrically connected with the outgoing line contact, and when the leakage condition appears on the accessed electric wire or the contacted electric wire, the leakage protection module controls disconnection, so that protection is realized.

Wherein, the shell 1 is made of insulating material to prevent electric shock.

The wire inlet structure 2 is made of a conductive material and is used for connecting a wire and a wire inlet contact and electrically connecting the wire and the wire inlet contact. The inlet wire structure 2 can be for taking the iron plate of counter bore, sets up the screw hole on the inner wall of counter bore, inserts the counter bore back with the electric wire, with fastening screw in screw hole and support tight electric wire, can be connected the electric wire with inlet wire structure 2 electricity.

The inlet 3 is arranged on the housing 1, which is large enough to ensure that the inlet structure 2 can be inserted into the inlet 3. The inlet wire contact sets up in inlet wire groove 3, thereby behind inlet wire structure 2 inserted wire groove 3, inlet wire structure 2 can be connected with the contact electricity of inlet wire contact.

When carrying out the wiring, take out inlet wire structure 2 from the wire casing 3 in, be connected the electric wire with inlet wire structure 2, then insert inlet wire structure 2 return wire casing 3 and with the contact of the inlet wire contact in the slot 3 to be connected the electric wire through inlet wire structure 2 and inlet wire contact electricity, and then accomplish the wiring. Because inlet wire structure 2 is located slot 3, effectively protects inlet wire structure 2 to get up the protection of wiring department, prevent that inlet wire structure 2 from being damaged, prevent simultaneously that personnel's mistake from touching inlet wire structure 2 and electrocute.

As optional implementation manner, in the embodiment of the present invention, as shown in fig. 1 and fig. 2, the leakage protection switch further includes an incoming line locking mechanism, and the incoming line locking mechanism can fix the incoming line structure 2.

When wiring, the wire inlet structure 2 is taken out from the wire slot 3, the electric wire is connected with the wire inlet structure 2, and then the wire inlet structure 2 is inserted into the wire slot 3 and is contacted with the wire inlet contact in the slot 3. Use inlet wire locking mechanism to fix inlet wire structure 2 in wire casing 3 this moment, prevent that inlet wire structure 2 is not hard up to break away from, guarantee effective connection between inlet wire structure 2 and the inlet wire contact.

Regarding the concrete structure of inlet wire locking structure, as optional implementation mode, in the embodiment of the present invention, as shown in fig. 1 and fig. 2, inlet wire locking structure includes: a threaded through hole and a screw 4, wherein the threaded through hole is arranged on the inner wall of the wire inlet groove 3, and the screw 4 is screwed in the threaded through hole.

When carrying out the wiring, take out inlet wire structure 2 from the wire casing 3 in, be connected the electric wire with inlet wire structure 2, then insert inlet wire structure 2 back wire casing 3 and contact with the inlet wire contact in the slot 3. Screw 4 is screwed at this moment for screw 4 inserts in slot 3 until supporting tightly inlet wire structure 2, thereby prevents that inlet wire structure 2 is not hard up to break away from, guarantees effectively to be connected between inlet wire structure 2 and the inlet wire contact.

As an optional implementation manner, in an embodiment of the present invention, as shown in fig. 1 and fig. 2, the earth leakage protection switch further includes: a slide bar 5 and a first runner. Wherein the first chute is arranged on the inner wall of the wire inlet groove 3 from top to bottom, and the first chute penetrates through the inner wall of the wire inlet groove 3. The sliding rod 5 is inserted into the first sliding groove and is fixedly connected with the wire inlet structure 2. At this time, the sliding rod 5 slides up and down along the first sliding groove, so as to drive the wire inlet structure 2 to slide in the wire groove 3.

When wiring is carried out, the sliding rod 5 slides along the first sliding groove, so that the wire inlet structure 2 slides out of the wire groove 3. At this time, the electric wire is connected with the wire inlet structure 2, and then the sliding rod 5 slides along the first sliding groove, so that the wire inlet structure 2 slides out of the wire return groove 3 until contacting with the wire inlet contact in the slot 3. The operation is more convenient and faster.

As an optional implementation manner, in the embodiment of the present invention, as shown in fig. 1 and fig. 2, the clamping structure is disposed on the back surface of the housing 1, and when the earth leakage protection switch is installed at the designated position, the clamping point is preset at the designated position, and the clamping structure is clamped at the clamping point, so that the operation is more convenient and the installation efficiency is higher.

As an optional implementation manner, in an embodiment of the present invention, as shown in fig. 1 and fig. 2, the specific structure of the clamping structure further includes: an upper clamp plate 6, a lower clamp plate 7 and a spring. Set up second spout and third spout respectively at the back of shell 1, slide upper plate 6 and set up in the second spout for upper plate 6 can slide along the second spout, slide lower plate 7 and set up in the third spout, make lower plate 7 can slide along the third spout. Connect upper plate 6 with spring one end, lower plate 7 is connected to the other end, keeps away from upper plate 6 and lower plate 7 and removes, and the spring is elongated this moment, places the centre gripping point in between upper plate 6 and lower plate 7 after, unclamps upper plate 6 and lower plate 7, and the spring kick-backs and makes upper plate 6 and lower plate 7 press from both sides tight centre gripping point.

As optional implementation manner, in the embodiment of the present invention, as shown in fig. 1 and fig. 2, the air holes 8 are disposed on the housing 1, and the air can enter the housing 1 through the air holes 8, so as to ensure the ventilation and heat dissipation inside the housing 1, thereby ensuring a good working environment of the leakage protection module.

In order to prevent impurities from entering the casing 1, a filter screen can be arranged in the air holes 8.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (8)

1. A residual current circuit breaker for a power transmission line, comprising:

a housing (1);

the wire inlet structure (2) is used for connecting a wire and a wire inlet contact;

the wire inlet groove (3) is formed in the shell (1), and the wire inlet structure (2) can be inserted into the wire inlet groove (3) and connected with the wire inlet contact.

2. The earth leakage protection switch of claim 1, further comprising:

and the incoming line locking structure is used for fixing the incoming line structure (2), and the incoming line structure (2) is arranged on the inner wall of the incoming line groove (3) in a sliding manner.

3. A residual current circuit breaker according to claim 2,

the inlet wire locking structure includes:

the threaded through hole is formed in the inner wall of the wire inlet groove (3);

and the screw (4) is arranged in the threaded through hole and can be tightly abutted against the wire inlet structure (2).

4. The earth leakage protection switch of claim 1, further comprising:

the sliding rod (5) is connected with the wire inlet structure (2);

the first sliding groove is formed in the inner wall of the wire inlet groove (3), and the sliding rod (5) is arranged in the first sliding groove in a sliding mode.

5. The earth leakage protection switch of claim 1, further comprising:

and the clamping structure is arranged on the back surface of the shell (1) and is used for clamping the installation position.

6. A residual current circuit breaker as claimed in claim 5, characterized in that said clamping structure comprises:

the upper clamping plate (6) is connected with the back surface of the shell (1) in a sliding way;

the lower clamping plate (7) is connected with the back surface of the shell (1) in a sliding way;

and the spring is respectively connected with the upper clamping plate (6) and the lower clamping plate (7).

7. The earth leakage protection switch of claim 1, further comprising:

and the air holes (8) are formed in the shell (1).

8. The residual current circuit breaker according to claim 1, wherein the housing (1) is made of an insulating material.

Images