CN209981149U - Tripping contact mechanism for leakage socket - Google Patents

Abstract

The utility model adopts a tripping contact mechanism for an electric leakage socket, which comprises a resetting tripping mechanism and a contact mechanism, wherein the resetting tripping mechanism comprises a supporting piece, both ends of the supporting piece are provided with contact supports, the contact supports are respectively provided with a limiting groove, the contact mechanism comprises a static contact, a moving contact, a connecting piece and a contact over-travel fine-adjustment device, a placing cavity is arranged at the contact support, the contact over-travel fine-adjustment device is placed in the contact supports through the placing cavity, one end of the moving contact is placed in the connecting piece and forms a limit at the connecting piece, the connecting piece can be placed in the contact supports, the limit with the connecting piece is formed through the limiting groove, the moving contact with the limit on the connecting piece is positioned right above the placing cavity, one end of the contact over-travel fine-adjustment device in the placing cavity is contacted with the bottom surface of the placing cavity, and the other, when the moving contact and the static contact become thin due to abrasion in work, the contact overtravel fine-adjustment device can control the moving contact to move upwards, so that the moving contact and the static contact can still be in normal contact.

Description

Tripping contact mechanism for leakage socket

Technical Field

The utility model relates to a dropout contact mechanism for electric leakage socket.

Background

The socket, also called power socket, is a socket into which one or more circuit wiring can be inserted, through which various wiring can be inserted; the leakage socket generally comprises a reset tripping mechanism and a contact mechanism, wherein the reset tripping mechanism comprises a movable iron core, a static iron core, a support piece, a tripping iron core and a reset spring which is sleeved outside the movable iron core and can reset the movable iron core, the movable iron core and the support piece are arranged in an integrated mode, the contact mechanism comprises a static contact and a movable contact, the static contact is mounted in the leakage socket, the movable contact is fixed at two ends of the support piece, one side, close to the support piece, of the tripping iron core can be used for limiting the movable iron core when the leakage socket is closed, the other end of the tripping iron core is provided with a tripping spring, and therefore the tripping iron core or a part mounted on the tripping iron core can be guaranteed, the action of the tripping spring is against the outer surface of the support piece or the movable iron core, and when the leakage socket bears lightning stroke, When the leakage current occurs under the conditions of strong current, voltage impact or other unknown conditions, the tripping iron core moves towards one side provided with the tripping spring, one side of the associated tripping iron core, which is close to the supporting piece, forms a part for inhibiting the movement of the movable iron core, and the part is withdrawn from the position where the movable iron core or the supporting piece forms a limit position, in the movable iron core and the static iron core which are originally contacted, the movable iron core can be disengaged from the static iron core due to the resetting force of the resetting spring because of the limit release of the movable iron core and the supporting piece, because the movable iron core and the supporting piece are integrated, when the movable iron core and the static iron core are disengaged, the supporting piece can also move, and the movable contacts fixed at the two ends of the supporting piece can be disengaged from the static contact due to the movement of the supporting piece, thereby forming the tripping of the leakage socket, however, the leakage socket can, when the tripping reason related in the leakage socket is removed, the leakage socket needs to be switched on, and after the moving contact arranged on the support and the static contact in the leakage socket are switched on and off for a certain number of times, the static contact or the moving contact can be worn, so that the situation that the voltage or the current in the socket is unstable can be caused, and in the serious situation, the situation that the leakage socket is normally switched on but the static contact and the moving contact cannot be contacted can be caused, so that the leakage socket is not electrified.

Disclosure of Invention

In view of the not enough of existence among the above-mentioned prior art, the utility model provides a move, wearing and tearing appear in the static contact, the inside dropout contact mechanism that is used for electric leakage socket that can carry out position adjustment of electric leakage socket.

In order to achieve the above object, the present invention adopts a tripping contact mechanism for an electrical leakage socket, comprising a resetting tripping mechanism and a contact mechanism, wherein the resetting tripping mechanism comprises a supporting member, the two ends of the supporting member are respectively provided with a contact support, and the contact supports are respectively provided with a limiting groove, the contact mechanism comprises a static contact and a moving contact which is in butt joint with the static contact, the contact mechanism further comprises a connecting member and a contact over-travel fine adjustment device, the contact support is further provided with a placing cavity, the contact over-travel fine adjustment device is placed in the contact support through the placing cavity, one end of the moving contact is placed in the connecting member and can form the limiting of the moving contact at the connecting member, and the connecting member can be placed in the contact support and form the limiting of the connecting member through the limiting groove on the contact support, the moving contact limited on the connecting piece is positioned right above the placing cavity, one end of the over-travel fine adjustment device of the contact in the placing cavity is contacted with the bottom surface of the placing cavity, and the other end of the over-travel fine adjustment device of the contact in the placing cavity is pressed against the end of the moving contact which is arranged in the connecting piece.

The beneficial effect of above-mentioned structure lies in: the existing moving contact is directly riveted on the contact support, the static contact is riveted inside the leakage socket, the moving contact and the static contact for realizing the opening and closing of the leakage socket can be worn to a certain degree in the using process, when the leakage socket is opened and closed for a certain number of times, the moving contact and the static contact can reach the wear limit, when the wear limit is broken through, the leakage socket is closed, but a gap exists between the moving contact and the static contact, so that the leakage socket is not electrified, based on the condition, the utility model discloses a contact mechanism carries out corresponding adjustment on the related installation mode of the moving contact under the condition that the static contact structure is not changed, wherein a placing cavity is arranged on the contact support, a spring is arranged in the cavity, the moving contact is limited on the connecting piece, meanwhile, the connecting piece is limited on the contact support, and when the connecting piece is limited on the contact support, the moving contact limited on the connecting piece is positioned right above the placing cavity, the spring placed in the cavity is connected with the moving contact limited on the connecting piece, and meanwhile, the spring is in a compression state.

Particularly, the moving contact comprises a contact end and a contact fixing end, a contact limiting hole matched with the contact fixing end is formed in the connecting piece, the limit of the moving contact at the connecting piece can be formed through the cooperation of the contact fixing end and the contact limiting hole, and the contact end on the moving contact is positioned at one side provided with the fixed contact; the connecting piece is provided with the contact limiting hole, when the moving contact is matched with the connecting piece, the moving contact is inserted into the contact limiting hole through one fixed end of the contact, and the contact end of the contact is in contact with the static contact, so that the reasonability of the design is further ensured.

Particularly, the connecting piece comprises a matching end, a fixed end and an extending end which is in butt joint with the outside, the matching end, the fixed end and the extending end are sequentially arranged and are in a step shape, the contact limiting hole is formed in the matching end, the connecting piece is embedded in the limiting groove through the fixed end, the fixed end is provided with a through groove, the contact support is additionally provided with a limiting barb which can be matched with the through groove in the limiting groove, and the limiting of the connecting piece in the contact support is formed through the matching of the limiting barb and the through groove; through the above setting, and when the connecting piece was arranged in the contact through the spacing groove and is supported, because the existence of spring, make spacing barb on the contact supported carry out the screens with the logical groove on the connecting piece, it is spacing on the contact support from this to form the connecting piece, and the connecting piece has the lateral surface of moving contact to place the chamber by spacing, and pass the spacing groove, and be equipped with domatic one side through spacing barb, make spacing barb get into logical inslot, and carry out the screens through the opposite side and the logical groove of spacing barb, it is spacing on the contact support to form the connecting piece from this.

Particularly, the contact over-travel fine adjustment device is a tower-shaped spring, the large end of the tower-shaped spring is connected with a moving contact limited on the connecting piece, the small end of the tower-shaped spring is placed in the placing cavity and is contacted with the bottom surface of the placing cavity, a spring limiting column is formed on the bottom surface of the placing cavity, and the tower-shaped spring in the placing cavity is sleeved at the outer end of the spring limiting column; because the utility model discloses consider that the cost problem adopts and adopt the turriform spring with contact over travel micromatic setting, and can play the spacing better and place the turriform spring forming the spacing post of spring placing the chamber, nevertheless the utility model relates to a contact over travel micromatic setting is not restricted to the turriform spring, if adopt other structures that are different from the turriform spring, then is different placing the stop device that the intracavity formed, or if it is advisable not to relate to stop device because the structure of the contact over travel micromatic setting that selects is special.

Drawings

Fig. 1 is a perspective view of a tripping contact mechanism for a leakage socket according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a perspective view of the connector of the present invention;

fig. 4 is a partial exploded view of the trip contact mechanism for the earth leakage receptacle of the present invention;

fig. 5 is a schematic view of the support member and contact support of the present invention in mating relationship;

Detailed Description

As shown in fig. 1-5, the embodiment of the present invention adopts a tripping contact mechanism 1 for an electrical leakage socket, the tripping contact mechanism 1 is composed of a reset tripping mechanism 2 and a contact mechanism 1, wherein a supporting member 21 is involved in the reset tripping mechanism 2, two ends of the supporting member 21 are respectively related to contact supports 11, wherein the contact supports 11 are provided with a limiting groove 111 and a placing cavity 112, the limiting groove 111 is located on a side surface of the contact support 11, a limiting barb 1111 is added to the limiting groove 111, the placing cavity 112 is distributed with an upward opening, the above-mentioned related contact mechanism 1, in addition to the contact supports 11, further relates to a connecting member 14, a tower-shaped spring 15, a static contact 13 installed inside the electrical leakage socket, and a moving contact 12 forming a butt joint with the static contact 13, wherein the tower-shaped spring 15 referred to herein is placed in the placing cavity 112, the connecting member 14 is composed of a mating end 141, a mating, The fixed end 142 and the extending end 143 abutting against the outside, the mating end 141, the fixed end 142 and the extending end 143 are sequentially arranged and are stepped, meanwhile, the connector 14 is provided with a contact limiting hole 1411 at the mating end 141, the fixed end 142 is provided with a through slot 1421 adapted to the limiting hook 1111, two ends of the moving contact 12 relate to a contact end 122 and a contact fixed end 121, wherein the contact end 122 can be used for contacting with the fixed contact 13, the contact fixed end 121 can be matched with the contact limiting hole 1411 of the connector 14, the moving contact 12 can be limited at the connector 14 by the cooperation of the contact fixed end 121 and the contact limiting hole 1411, when the connector 14 is placed in the contact support 11, the moving contact 12 related to the limitation on the connector 14 faces to the side of the placing cavity 112 related to the contact support 11, and the fixed end 142 related to the connector 14 is inserted into the limiting slot 111 related to the contact support 11, meanwhile, the through groove 1421 formed in the fixed end 142 slides into the limit barb 1111 in the limit groove 111 due to the downward action of the connecting element 14, the mating end 141 in the connecting element 14 moves downward and is located right above the placing cavity 112, and the movable contact 12 limited at the mating end 141 compresses the tower-shaped spring 15 in the placing cavity 112 along with the downward movement of the connecting element 14, so that the connecting element 14 inserted into the contact support 11 is matched with the through groove 1421 through the limit barb 1111 and overcomes the reverse elasticity of the tower-shaped spring 15, thereby forming the limit of the connecting element 14 in the contact support 11.

When the moving contact and the static contact 13 are worn and thinned in the use of the leakage socket, the spring can control the moving contact 12 to move upwards in compression, so that the moving contact and the static contact 13 can still be in normal contact, the service life of the leakage socket is correspondingly prolonged, and the acceptance of users to the leakage socket is greatly improved.

Claims (4)

1. The utility model provides a tripping contact mechanism for electric leakage socket, includes tripping mechanism and contact mechanism reset, tripping mechanism reset include support piece, support piece's both ends all are equipped with the contact and support, and have seted up the spacing groove on this contact supports respectively, contact mechanism include the static contact and form the moving contact of butt joint with the static contact, its characterized in that: the contact mechanism further comprises a connecting piece and a contact over-travel fine-adjustment device, a placing cavity is further formed in the contact support, the contact over-travel fine-adjustment device is placed in the contact support through the placing cavity, one end of the moving contact is placed in the connecting piece and can form limiting of the moving contact at the connecting piece, the connecting piece can be placed in the contact support and forms limiting of the connecting piece through a limiting groove in the contact support, the moving contact limiting on the connecting piece is located right above the placing cavity, one end of the contact over-travel fine-adjustment device in the placing cavity is in contact with the bottom surface of the placing cavity, and the other end of the contact over-travel fine-adjustment device in the placing cavity is abutted against the end of the moving contact placed in the connecting piece.

2. The trip contact mechanism for a residual current receptacle according to claim 1, wherein: the moving contact comprises a contact end and a contact fixing end, a contact limiting hole matched with the contact fixing end is formed in the connecting piece, the contact fixing end and the contact limiting hole are matched to form limiting of the moving contact at the connecting piece, and the contact end of the moving contact is located on one side where the fixed contact is arranged.

3. The trip contact mechanism for a residual current receptacle according to claim 2, wherein: the connecting piece include cooperation end, stiff end and form the extension end of butt joint with the external world, cooperation end, stiff end and extension end arrange in proper order and be the echelonment, the spacing hole of contact set up on this cooperation end, this connecting piece inlay in spacing inslot through the stiff end, and seted up logical groove in this stiff end, the contact support on add the spacing barb that can with logical inslot looks adaptation in this spacing inslot, through spacing barb forms the spacing of connecting piece in the contact support with the cooperation in logical groove.

4. A trip contact mechanism for a residual current receptacle according to claim 1, 2 or 3, characterized in that: the contact over-travel fine adjustment device is a tower-shaped spring, the large end of the tower-shaped spring is connected with a movable contact limited on the connecting piece, the small end of the tower-shaped spring is placed in the placing cavity and is contacted with the bottom surface of the placing cavity, a spring limiting column is formed at the bottom surface of the placing cavity, and the tower-shaped spring in the placing cavity is sleeved at the outer end of the spring limiting column.

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