CN110600948B

CN110600948B - Circuit safety power-off protection control structure

Info

Publication number: CN110600948B
Application number: CN201910896211.0A
Authority: CN
Inventors: 刘运星; 王永红; 杨保花
Original assignee: Individual
Current assignee: Liu Yunxing; Wang Yonghong
Priority date: 2019-09-22
Filing date: 2019-09-22
Publication date: 2020-12-08
Anticipated expiration: 2039-09-22
Also published as: CN110600948A

Abstract

A circuit safety power-off protection control structure comprises a protection shell, a working cavity with a right opening is arranged in the protection shell, an electrified sliding block is arranged in the working cavity in a sliding way, a pushing spring is fixedly connected between the left end surface of the electrified sliding block and the left inner wall of the working cavity, a first electrifying block and a second electrifying block which are electrically connected are arranged in the electrifying slide block, a third electrifying block which can be abutted against the first electrifying block is arranged on the inner wall of the working cavity, the invention aims to design a circuit power-off protector which can cut off a circuit when short circuit or electric leakage occurs.

Description

Circuit safety power-off protection control structure

Technical Field

The invention relates to the technical field of circuit power-off protection, in particular to a circuit safety power-off protection control structure.

Background

In the process of family or processing production, when the shell is electrified due to insulation damage of electrical equipment and workers contact the shell, personal electric shock accidents can be caused. At this time, a part of the ground current will flow through the human body, and the value of the ground current is large to a certain extent, so that the casualties of the workers can be caused. When a worker touches a core wire which punctures the outer sheath of the rubber sleeve cable and is exposed in the air, a more serious person is electrically shocked, and at the moment, most of the earth current flows through the human body, so that the danger to the worker is higher;

the traditional earth leakage protection generally adopts earth leakage protection, but when ground humidity is high or a conductive conductor is arranged, electric shock can occur, and the phenomenon that an electric appliance is damaged due to overlarge negative pressure can be caused, so that the invention aims to design a circuit power-off protector capable of disconnecting a circuit when short circuit or electric leakage occurs.

Disclosure of Invention

In order to solve the above problems, this embodiment designs a circuit safety power-off protection control structure, which comprises a protection casing, a working chamber with a right opening is arranged in the protection casing, a power-on slider is slidably arranged in the working chamber, a pushing spring is fixedly connected between the left end surface of the power-on slider and the left inner wall of the working chamber, a first power-on block and a second power-on block which are electrically connected are arranged in the power-on slider, a third power-on block which can be abutted against the first power-on block is arranged on the inner wall of the working chamber, a wire-feeding wire fixing groove which is arranged at the upper side and the lower side of the working chamber and has a left opening is arranged in the protection casing, a user can extend a wire-feeding wire into the wire fixing groove and make the third power-on block contact with the wire-feeding wire fixing groove to, the incoming wire locking device can fix an incoming wire extending into the incoming wire fixing groove, a working block is slidably arranged on the right side of the electrified sliding block and positioned in the working cavity, a fourth electrified block capable of abutting against the second electrified block is fixedly arranged on the left side end face of the working block, a first turnover groove with an outward opening is arranged on the working block, a fixing block is fixedly arranged on the left inner wall of the first turnover groove, a second turnover groove with a rightward opening is arranged in the fixing block, a turnover rod is rotatably arranged in the second turnover groove, a torsion spring is fixedly connected between the turnover rod and the inner wall of the second turnover groove, a swing fixture block capable of swinging in the first turnover groove is fixedly connected to the right end of the turnover rod, wherein clamping grooves for clamping the swing fixture block are respectively arranged in the upper inner wall and the lower inner wall of the working cavity, the upper side and the lower side of the first turnover groove are internally provided with first electromagnets electrically connected with external electrical appliances, the swing fixture block is fixedly provided with a second electromagnet matched with the first electromagnet, a socket assembly electrically connected with the fourth electrical appliance is arranged in the working block on the right side of the first electromagnet, and the socket assembly can be used by external electrical appliances.

Preferably, the incoming wire locking device comprises a locking groove which is communicated with the inner wall of the incoming wire fixing groove and has an outward opening, the incoming wire can transversely pass through the locking groove when passing through the incoming wire fixing groove, the locking groove is internally provided with a locking block in a sliding way, the locking block is internally provided with a locking clamping groove which penetrates through the locking block from left to right, a limiting block is fixedly arranged at one end of the locking block, which is far away from the protective shell, a countersunk hole with a leftward opening is arranged in the protective shell, a threaded hole is arranged in the inner wall of the right side of the countersunk hole, when the locking block is inserted into the locking groove, the locking block and the locking groove can be locked by a set screw, and then the wire passing through the locking clamping groove and the wire inlet wire fixing groove is locked to prevent the wire inlet wire from being separated out of the wire inlet wire fixing groove due to vibration.

Preferably, first circular telegram piece with be in through fixed the setting between the second circular telegram piece first circular telegram wire in the circular telegram slider feeds through, first circular telegram piece third circular telegram piece reaches the second circular telegram piece all is provided with two of longitudinal symmetry to be convenient for connect zero line and live wire, work as the circular telegram slider is in to the left side removal in the working chamber and be in first circular telegram piece butt in during the third circular telegram piece, the electric current accessible third circular telegram piece reaches first circular telegram piece and first circular telegram wire circulate extremely on the second circular telegram piece.

But preferably, fixed two first circular telegram contact pieces that are provided with longitudinal symmetry on the right side inner wall of inlet wire fixed slot, first circular telegram contact piece with third circular telegram piece electric connection, first circular telegram contact piece can make the inlet wire insert during in the inlet wire fixed slot, can make third circular telegram piece and inlet wire fully contact to prevent the later stage because vibrations or wire undersize and lead to the consequence of circuit contact failure.

Preferably, the socket assembly comprises a limiting plate fixedly arranged on the right side end face of the working block, two socket slots with right openings are symmetrically arranged in the limiting plate up and down, two second conduction electric contact sheets are fixedly arranged on the inner walls of the socket slots, the second conduction electric contact sheets on the upper side and the lower side in the socket slots are respectively connected with the fourth conduction blocks on the upper side and the lower side through second wires, plugs are inserted into the socket slots through plug insertion lugs, and then current passing through the device is conducted to electrical appliances through electrical appliance connection wires, the socket is made of plastic, and therefore the electric shock phenomenon is prevented.

Preferably, an annular pushing groove with a rightward opening is formed in the protective shell, an isolating pushing block is slidably arranged in the pushing groove, an ejection spring is fixedly connected between the left end surface of the isolation ejection block and the left inner wall of the ejection groove, in the initial state, the right end face of the isolation pushing block is flush with the right end face of the protection shell, an annular ring block which can slide left and right in the pushing groove is fixedly arranged on the left end surface of the limiting plate, when the electric leakage or short circuit occurs, the first electromagnet is electrified to attract the swing and rotating clamping block to rotate into the first overturning groove, at the moment, the limiting plate can move towards the right side under the action of the elastic force of the ejection spring, and then the working block is pushed out of the working cavity, so that a circuit is disconnected, and an electric appliance connected to the right end of the electric appliance connecting wire can be protected.

Preferably, the first and second conductive contact pieces are made of copper, so that the current transmission efficiency can be increased, and the fatigue caused by long-time and repeated plugging can be reduced, thereby prolonging the service life of the device.

Preferably, the first electrifying block is provided with a notch, so that the electrifying slider can move leftwards to the maximum extent conveniently to increase the contact area of the first electrifying block and the third electrifying block, and further the conduction efficiency of current is increased.

The device has the advantages that the device is different from other short circuit or power-off protection measures, the traditional power-off or ground protection measures cannot predict the result if the circuit cannot be disconnected in time or the ground fails, the light person can burn out the circuit of the electric appliance, and the heavy person can cause fire or casualties.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

FIG. 1 is a schematic diagram of the overall structure of a circuit safety power-off protection control structure according to the present invention;

FIG. 2 is a schematic structural view of the "torsion spring" in FIG. 1 from above;

FIG. 3 is a schematic structural diagram of the "limiting block" in FIG. 1 in a left-view direction;

FIG. 4 is a schematic view of the structure in the direction "A-A" in FIG. 1;

FIG. 5 is a schematic view of the structure in the direction "B-B" in FIG. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-5, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a circuit safety power-off protection control structure, which is mainly applied to the disconnection of an electrical appliance connected to a socket when a circuit socket is in short circuit, and further plays a role in protecting the circuit and the electrical appliance, and the invention is further explained by combining the attached drawings of the invention:

according to the invention, the circuit safety power-off protection control structure comprises a protection shell 101, a working cavity 102 with a right opening is arranged in the protection shell 101, an electrifying slide block 104 is arranged in the working cavity 102 in a sliding manner, a pushing spring 108 is fixedly connected between the left side end surface of the electrifying slide block 104 and the left side inner wall of the working cavity 102, a first electrifying block 107 and a second electrifying block 112 which are electrically connected are arranged in the electrifying slide block 104, a third electrifying block 109 which can be abutted against the first electrifying block 107 is arranged on the inner wall of the working cavity 102, an incoming wire fixing groove 105 which is positioned at the upper side and the lower side of the working cavity 102 and has a left opening is arranged in the protection shell 101, a user can extend an incoming wire into the incoming wire fixing groove 105 and make the third electrifying block 109 contact to realize the conduction, and an incoming wire locking device is arranged in the incoming wire, the incoming wire locking device can fix an incoming wire extending into the incoming wire fixing groove 105, a working block 141 is slidably arranged on the right side of the electrifying slider 104 and positioned in the working cavity 102, a fourth electrifying block 116 capable of abutting against the second electrifying block 112 is fixedly arranged on the left side end face of the working block 141, a first overturning groove 121 with an outward opening is arranged on the working block 141, a fixing block 115 is fixedly arranged on the inner wall of the left side of the first overturning groove 121, a second overturning groove 113 with a rightward opening is arranged in the fixing block 115, an overturning rod 114 is rotatably arranged in the second overturning groove 113, a torsion spring 142 is fixedly connected between the overturning rod 114 and the inner wall of the second overturning groove 113, and a swinging clamping block 119 capable of swinging in the first overturning groove 121 is fixedly connected to the right end of the overturning rod 114, the inner walls of the upper side and the lower side of the working cavity 102 are respectively provided with a clamping groove 103 for clamping the swing clamping block 119, the inner walls of the first turnover groove 121 on the upper side and the lower side are respectively provided with a first electromagnet 124 electrically connected with an external electrical appliance, the swing clamping block 119 is fixedly provided with a second electromagnet 123 capable of being matched with the first electromagnet 124, the working block 141 on the right side of the first electromagnet 124 is internally provided with a socket assembly electrically connected with the fourth electrical appliance 116, and the socket assembly can be used by the external electrical appliance.

Advantageously, the incoming wire locking device includes a locking groove 136 which is communicated with and arranged in the inner wall of the incoming wire fixing groove 105 and has an outward opening, the incoming wire can transversely pass through the locking groove 136 when passing through the incoming wire fixing groove 105, a locking block 134 is slidably arranged in the locking groove 136, a locking groove 135 is arranged in the locking block 134 in a left-right penetrating manner, a limiting block 133 is fixedly arranged at one end of the locking block 134 far away from the protection casing 101, a countersunk hole 139 with a leftward opening is arranged in the protection casing 101, a threaded hole 138 is arranged in the inner wall of the right side of the countersunk hole 139, when the locking block 134 is inserted into the locking groove 136, the locking block 134 and the locking groove 135 can be locked by a set screw 137, and then the wire passing through the locking groove 135 and the incoming wire fixing groove 105 can be locked, to prevent the incoming wires from being separated out of the incoming wire fixing slots 105 due to vibration.

Beneficially, the first current-carrying block 107 and the second current-carrying block 112 are communicated with each other through a first current-carrying wire 111 fixedly disposed in the current-carrying slider 104, and the first current-carrying block 107, the third current-carrying block 109 and the second current-carrying block 112 are both disposed with two vertical symmetry so as to connect a neutral wire and a live wire, so that when the current-carrying slider 104 moves to the left side in the working cavity 102 and the first current-carrying block 107 abuts against the third current-carrying block 109, a current can pass through the third current-carrying block 109 and the first current-carrying block 107 and the first current-carrying wire 111 to the second current-carrying block 112.

Beneficially, two first energizing contact pieces 106 which are symmetrical up and down are fixedly arranged on the inner wall of the right side of the incoming line lead fixing groove 105, the first energizing contact pieces 106 are electrically connected with the third energizing block 109, and when an incoming line lead is inserted into the incoming line lead fixing groove 105, the first energizing contact pieces 106 can enable the third energizing block 109 to be in full contact with the incoming line lead, so that the consequence of poor circuit contact caused by vibration or lead undersize in the later stage is avoided.

Advantageously, the socket assembly includes a limiting plate 128 fixedly disposed on the right side end face of the working block 141, two socket slots 126 with right openings are disposed in the limiting plate 128 in an up-down symmetrical manner, two second conduction contact strips 127 are fixedly disposed on the inner walls of the socket slots 126, wherein the second conduction contact strips 127 in the socket slots 126 on the upper and lower sides are respectively connected with the fourth conduction blocks 116 on the upper and lower sides through second wires 143, a plug 131 is inserted into the socket slots 126 through plug insertion lugs 129, so that the current passing through the device is conducted to an electrical appliance through an electrical appliance connection wire 132, and the plug 131 is made of plastic, thereby preventing the occurrence of an electric shock phenomenon.

Beneficially, an annular pushing groove 117 with a right opening is arranged in the protection housing 101, an isolating pushing block 122 is slidably arranged in the pushing groove 117, an ejecting spring 118 is fixedly connected between a left end face of the isolating pushing block 122 and a left inner wall of the pushing groove 117, in an initial state, a right end face of the isolating pushing block 122 is flush with a right end face of the protection housing 101, an annular ring block 125 capable of sliding left and right in the pushing groove 117 is fixedly arranged on a left end face of the limiting plate 128, when an electric leakage or short circuit occurs, the first electromagnet 124 is energized to attract the swinging fixture block 119 to rotate into the first turning groove 121, at this time, the limiting plate 128 can move to the right side under the action of the elastic force of the ejecting spring 118 to push the working block 141 out of the working chamber 102, thereby breaking the circuit and protecting the electrical appliance connected to the right end of the electrical appliance connecting wire 132.

Advantageously, the first conductive contact pad 106 and the second conductive contact pad 127 are made of copper, which increases the current transmission efficiency, and reduces the fatigue caused by long-time and repeated plugging, thereby increasing the service life of the device.

Beneficially, the first conducting block 107 is provided with a notch, so that the contact area between the first conducting block 107 and the third conducting block 109 is increased when the conducting slide block 104 moves to the left to the maximum extent, and the conduction efficiency of the current is increased.

In an initial state, the right end face of the isolation pushing block 122 is flush with the right end face of the protection casing 101, the first energizing block 107 and the third energizing block 109 are away from each other, the working block 141 is moved out of the working cavity 102, at this time, the first electromagnet 124 has no magnetism, the swinging and rotating fixture block 119 swings outwards under the elastic force of the torsion spring 142, and the plug insertion lug 129 is located outside the socket slot 126.

The installation process of the device comprises the following steps: a user extends a live wire and a neutral wire of a lead-in wire into the lead-in wire fixing groove 105 on the upper side and the lower side respectively, at this time, the locking block 134 is inserted into the locking groove 136 and clamps the lead in the locking groove 135, at this time, the set screw 137 passes through the locking groove 136 and is connected into the threaded hole 138 through threads, at this time, the locking block 134 can be locked into the locking groove 136, so that the live wire and the neutral wire of the lead-in wire are locked into the lead-in wire fixing groove 105, at the same time, the working block 141 is inserted into the working chamber 102 and pushes the energizing slider 104 to move to the left side, at this time, the ring block 125 is inserted into the pushing groove 117, when the left side end face of the limiting plate 128 abuts against the right side end face of the protection housing 101, the third energizing block 109 abuts against the first energizing block 107, the second energizing block 112 abuts against the fourth energizing block 116, the swinging fixture block 119 is clamped into the clamping groove 103 under the elastic force of the torsion spring 142, at this time, the current of the incoming wire is transmitted to the second energizing contact piece 127 through the third energizing block 109, the first energizing block 107, the first energizing wire 111, the second energizing block 112, the fourth energizing block 116 and the second wire 143 in sequence, and at this time, a user only needs to insert the plug insert lug 129 into the socket slot 126 to energize an electrical appliance connected to the right end of the electrical appliance connecting wire 132;

when short circuit or electric leakage occurs, the first electromagnet 124 is powered on to generate magnetic attraction to the second electromagnet 123, at this time, the swing fixture block 119 is rotated back into the first turnover groove 121 against the elastic force of the torsion spring 142 and is separated from the fixture groove 103, at this time, the ejection spring 118 pushes the isolation ejection block 122 to move to the right, so as to push the ring block 125 and the limiting plate 128 to move to the right, so as to push the working block 141 out of the working cavity 102, so as to disconnect a circuit, and further, power-off protection is performed on an electrical appliance connected to the right end of the electrical appliance connecting lead 132;

the first electromagnet 124 can be connected to an external circuit or an electrical appliance, and can also be connected to a control switch, when the socket is not needed, the first electromagnet 124 can be powered through the switch, the working block 141 can be taken out of the working cavity 102, and the circuit is disconnected, so that the phenomenon of electric shock caused by the fact that a child inserts fingers or metal into the socket is prevented.

In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.

Claims

1. The utility model provides a circuit safety power-off protection control structure which characterized in that: the device comprises a protective shell (101), a working chamber (102) with a rightward opening is arranged in the protective shell (101), an electrifying sliding block (104) is arranged in the working chamber (102) in a sliding mode, a pushing spring (108) is fixedly connected between the left side end face of the electrifying sliding block (104) and the left side inner wall of the working chamber (102), a first electrifying block (107) and a second electrifying block (112) which are electrically connected are arranged in the electrifying sliding block (104), a third electrifying block (109) capable of being abutted to the first electrifying block (107) is arranged on the inner wall of the working chamber (102), an inlet wire fixing groove (105) with a leftward opening is arranged on the upper side and the lower side of the working chamber (102) in the protective shell (101), and a user stretches an inlet wire into the inlet wire fixing groove (105) and makes the third electrifying block (109) contact, and then realize electrically conductively, be provided with inlet wire locking device in inlet wire fixed slot (105), inlet wire locking device can be with stretching into inlet wire in inlet wire fixed slot (105) is fixed, the right side of circular telegram slider (104) just is located slidable is provided with work piece (141) in working chamber (102), fixed be provided with on the left side terminal surface of work piece (141) can with fourth through electricity piece (116) of second through electricity piece (112) butt, be provided with outside first upset groove (121) of opening on work piece (141), fixed be provided with fixed block (115) on the left side inner wall of first upset groove (121), be provided with second upset groove (113) that the opening is right in fixed block (115), rotatable upset pole (114) that is provided with in second upset groove (113), upset pole (114) with fixedly connected with torsion spring (142) between second upset groove (113) inner wall ) The right end of the turnover rod (114) is fixedly connected with a swing and rotation clamping block (119) capable of swinging in the first turnover groove (121), wherein the inner walls of the upper side and the lower side of the working cavity (102) are respectively provided with a clamping groove (103) capable of supplying the swing and rotation clamping block (119) to be clamped, the inner walls of the upper side and the lower side of the first turnover groove (121) are internally provided with a first electromagnet (124) electrically connected with an external electrical appliance, the swing and rotation clamping block (119) is fixedly provided with a second electromagnet (123) capable of being matched with the first electromagnet (124), the right side of the first electromagnet (124) is internally provided with a socket assembly electrically connected with the fourth electrical appliance (116), and the socket assembly is used by the external electrical appliance.

2. A circuit safety power-off protection control structure as claimed in claim 1, wherein: the incoming wire locking device comprises a locking groove (136) which is communicated with the inner wall of the incoming wire fixing groove (105) and is provided with an outward opening, the incoming wire can transversely pass through the locking groove (136) when passing through the incoming wire fixing groove (105), a locking block (134) is slidably arranged in the locking groove (136), locking clamping grooves (135) are arranged in the locking block (134) in a left-right penetrating manner, a limit block (133) is fixedly arranged at one end of the locking block (134) far away from the protective shell (101), a counter bore (139) with a leftward opening is arranged in the protective shell (101), a threaded hole (138) is arranged in the inner wall of the right side of the counter bore (139), when the locking block (134) is inserted into the locking groove (136), the locking block (134) and the locking clamping groove (135) are locked through a set screw (137).

3. A circuit safety power-off protection control structure as claimed in claim 2, wherein: first circular telegram piece (107) with between second circular telegram piece (112) through fixed setting first circular telegram wire (111) in circular telegram slider (104) communicate, first circular telegram piece (107), third circular telegram piece (109) and second circular telegram piece (112) all are provided with two of longitudinal symmetry.

4. A circuit safety power-off protection control structure as claimed in claim 3, wherein: two first electrifying contact pieces (106) which are symmetrical up and down are fixedly arranged on the inner wall of the right side of the inlet wire lead fixing groove (105), and the first electrifying contact pieces (106) are electrically connected with the third electrifying block (109).

5. A circuit safety power-off protection control structure as claimed in claim 4, wherein: the socket assembly comprises a limiting plate (128) fixedly arranged on the right side end face of the working block (141), two socket slots (126) with right openings are symmetrically arranged in the limiting plate (128) up and down, two second conduction contact sheets (127) are fixedly arranged on the inner wall of each socket slot (126), the second conduction contact sheets (127) in the socket slots (126) on the upper side and the lower side are respectively connected with the fourth conduction blocks (116) on the upper side and the lower side through second leads (143), and a plug (131) is inserted into the socket slots (126) through plug insertion lugs 129 so as to conduct current passing through the device to electrical appliances through an electrical appliance connecting lead (132).

6. A circuit safety power-off protection control structure as claimed in claim 5, wherein: the protection casing (101) is internally provided with an annular pushing groove (117) with a rightward opening, an isolating pushing block (122) is slidably arranged in the pushing groove (117), the left end face of the isolating pushing block (122) and the left inner wall of the pushing groove (117) are fixedly connected with an ejecting spring (118), in an initial state, the right end face of the isolating pushing block (122) is flush with the right end face of the protection casing (101), and an annular ring block (125) which can slide left and right in the pushing groove (117) is fixedly arranged on the left end face of the limiting plate (128).

7. A circuit safety power-off protection control structure as claimed in claim 6, wherein: the first and second current-carrying contact pads (106, 127) are made of copper.

8. A circuit safety power-off protection control structure as claimed in claim 7, wherein: the first electrifying block (107) is provided with a notch, so that the contact area between the first electrifying block (107) and the third electrifying block (109) is increased when the electrifying slide block (104) moves leftwards to the maximum extent.