Electric spark and explosion prevention socket
By setting up an electric spark-proof socket with a current limiting resistor and elastic contact plate in the socket, the electric spark and explosion problems when the plug is inserted are solved, and safety is improved.
Patent Information
- Application Number
- CN202421672573.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-16
AI Technical Summary
The existing sockets cause electric sparks due to voltage difference when plugs are inserted, which can easily lead to safety hazards such as fire or explosion.
An electric spark-proof explosion-proof socket is designed. By setting a current limiting resistor and an elastic contact sheet inside the socket, the voltage difference between the insert and the contact sheet is limited, and a flexible sealing head is used at the socket opening to prevent dust from entering to avoid the generation of electric sparks.
Effectively reduce the voltage difference between the insert and the contact plate, avoid the risk of electric sparks and explosions, and improve the safety performance of the socket.
Smart Images
Figure CN223066535U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of explosion-proof safety sockets, and particularly relates to an anti-spark explosion-proof socket. Background Art
[0002] A socket is a current power output device. By inserting a plug into the socket, electricity is transmitted from the socket through the plug to the wire, and then through the wire, electrical energy is sent to the corresponding electrical appliance to supply power to it, so that the electrical appliance can operate normally. It is also one of the most common power application output methods for current devices.
[0003] Since the plug itself has no voltage, when it is inserted into the socket, due to the voltage difference, the current is disordered, which may cause electric sparks. This phenomenon can easily cause some fires and even lead to the explosion of the socket. Therefore, an anti-spark explosion-proof socket is proposed. Content of the Utility Model
[0004] The technical solution adopted by the utility model to solve the technical problem is: an anti-spark explosion-proof socket, including a plug board. One side wall of the plug board is fixedly connected with a connector. An inner groove is opened inside the connector. Two wire grooves are opened on the side wall of the connector far away from the plug board. A pair of protective baffles are fixedly connected to the side wall of the inner groove close to the wire grooves. Current-limiting resistors are fixedly connected to the opposite side walls of the inner groove. Both ends of the current-limiting resistor are fixedly connected with transfer wires. One end of the transfer wire is fixedly connected with a transmission contact piece.
[0005] As a preferred technical solution of the utility model, a wiring head is arranged in the wire groove. The other end of the transfer wire extends into the wire groove and is fixedly connected with the wiring head. A contact piece is arranged between each pair of protective baffles. The contact piece is of a U-shaped structure. The side walls of the contact piece are elastic and inclined towards the middle. One end of the wiring head extends into the inner groove and is fixedly connected with one end of the contact piece.
[0006] As a preferred technical solution of the utility model, a plug is arranged on one side of the plug board. A plug piece is fixedly connected to the opposite side wall of the plug and the plug board. A jack is opened on the side of the plug board opposite to the plug. A dust-proof board is movably connected to the opening of the jack. And the plug piece is inserted into the inner groove through the jack.
[0007] As a preferred technical solution of the utility model, one end of the transmission contact piece is of an inclined structure and fits with the plug piece. One end of the plug piece located in the inner groove is inserted into the contact piece, and the side wall of the contact piece fits with the outer wall of the plug piece.
[0008] As a preferred technical solution of the present utility model, a closed head is fixedly connected to the inner wall of the opening on the side of the wire groove away from the socket plate. The closed head is a conical flexible rubber structure, and the electric wire passes through the closed head and extends into the wire groove and is connected to the connection head.
[0009] The present utility model has the following advantages: When the insertion piece is inserted into the inner groove, it will first be in close contact with the conveying contact piece. The electric energy on the connection head is transmitted to the insertion piece through the transfer wire via the current-limiting resistor and the conveying contact piece, so that the insertion piece contains a certain amount of electric energy, thereby reducing the voltage difference between the insertion piece and the contact piece and reducing the impact generated when the two come into contact, thus avoiding the occurrence of electric sparks and causing safety accidents. Because there is a current-limiting resistor, it can limit the electric energy flowing on the conveying contact piece, thereby avoiding accidents such as explosion caused by too high voltage, and increasing the safety performance of the use of the socket plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 is a three-dimensional structural schematic diagram of a preferred embodiment of the present utility model;
[0011] Figure 2 is a top-plan view structural schematic diagram of a preferred embodiment of the present utility model;
[0012] Figure 3 is a preferred embodiment of the present utility model Figure 2 magnified structural schematic diagram at A in.
[0013] Description of the reference numerals: 1, socket plate; 2, jack; 3, dust-proof plate; 4, connector; 5, plug; 6, inner groove; 7, protective baffle; 8, contact piece; 9, connection head; 10, wire groove; 11, current-limiting resistor; 12, transfer wire; 13, conveying contact piece; 14, closed head. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0014] The present utility model will be further described below with reference to the drawings.
[0015] Please refer to Figures 1-3 , a kind of anti-electric spark and explosion-proof socket of the present utility model, including a socket plate 1, a connector 4 is fixedly connected to one side side wall of the socket plate 1, an inner groove 6 is opened inside the connector 4, two wire grooves 10 are opened on the side wall of the connector 4 away from the socket plate 1, a pair of protective baffles 7 are fixedly connected to the side wall of the inner groove 6 close to the wire grooves 10, current-limiting resistors 11 are fixedly connected to the opposite side walls of the inner groove 6, transfer wires 12 are fixedly connected to both ends of the current-limiting resistor 11, and one end of the transfer wire 12 is fixedly connected to a conveying contact piece 13;
[0016] There is a connection terminal 9 established inside the wire groove 10. The other end of the transfer wire 12 extends into the wire groove 10 and is fixedly connected to the connection terminal 9. There is a contact piece 8 established between each pair of protective baffles 7. The contact piece 8 is of a U-shaped structure. The two side walls of the contact piece 8 have elasticity and incline towards the middle. One end of the connection terminal 9 extends into the inner groove 6 and is fixedly connected to one end of the contact piece 8. One side of the plug board 1 is provided with a plug 5. The plug 5 and the side wall of the opposite end of the plug board 1 are fixedly connected with insertion pieces. The plug board 1 and the side opposite to the plug 5 are provided with insertion holes 2. The opening of the insertion hole 2 is movably connected with a dust-proof board 3. And the insertion piece is inserted into the inner groove 6 through the insertion hole 2. One end of the conveying contact piece 13 is of an inclined structure and fits with the insertion piece. The end of the insertion piece located in the inner groove 6 is inserted into the contact piece 8, and the side wall of the contact piece 8 fits with the outer wall of the insertion piece.
[0017] The technical effect of this solution is as follows: When the insertion piece is inserted into the inner groove 6 from the insertion hole 2, it will first come into contact with the conveying contact piece 13. At the same time, it is connected to the connection terminal 9 through the transfer wire 12. Therefore, the electric energy transmitted through the power cord will be sent onto the transfer wire 12, and then through the transfer wire 12 via the current-limiting resistor 11 and finally transmitted to the insertion piece through the conveying contact piece 13, so as to enable the insertion piece to obtain a certain electric energy voltage. In this way, the voltage difference between the insertion piece and the contact piece 8 can be shortened, and thus the generation of electric sparks can be avoided after the insertion piece and the contact piece 8 come into contact. When the plug 5 is pulled outwards, due to the above reasons, the generation of electric sparks caused by the sudden disconnection of the electric energy flowing between the contact piece 8 and the insertion piece is avoided.
[0018] The inner wall of the opening on the side of the wire groove 10 away from the plug board 1 is fixedly connected with a sealing head 14. The sealing head 14 is of a conical flexible rubber structure. And the wire passes through the sealing head 14 and extends into the wire groove 10 and is connected to the connection terminal 9.
[0019] The technical effect of this solution is as follows: The sealing head 14 is fixedly connected to the opening of the wire groove 10. The wire is passed into the wire groove 10 through the sealing head 14. Due to the physical properties of the sealing head 14, it will contract after expansion and will closely fit on the wire through contraction, so as to achieve a sealed state. In this way, it can prevent external dust and other sundries from entering the inner groove 6. Excessive dust accumulation on the contact piece 8 can easily increase the risk of fire or explosion once it is electrified or when heat is generated when the contact piece 8 comes into contact with the insertion piece.
[0020] Specifically, when the present utility model is in use, the blades on the plug 5 are inserted into the inner groove 6 through the jacks 2. As the blades are inserted, they will first contact the conveying contact piece 13, thereby attaching a certain voltage to the blades. Finally, the blades are inserted into the contact piece 8, and the elasticity of the side wall of the contact piece 8 makes it fit on the blades, thus ensuring the stability of the fit, ensuring the smooth transmission of electric energy, and avoiding the problem of electric sparks generated during plugging, thereby avoiding a series of safety hazards caused by electric sparks. The sealing head 14 is fixed on the opening side wall of the wire groove 10, the wire passes through the wire groove 10, and is connected to the connection head 9. The characteristic that the sealing head 14 can expand and contract itself enables one end of the sealing head 14 to closely fit on the outer wall of the wire, thereby ensuring the tightness inside the inner groove 6, preventing dust from entering the inner groove 6 and accumulating on the contact piece 8, and reducing the problem of fire or even explosion caused by electric sparks.
[0021] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.
[0022] The other parts not described in detail in the present utility model belong to the prior art, so they will not be elaborated here.
[0023] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, not to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.
Claims
1. An anti-spark explosion-proof socket, comprising a socket panel (1), characterized in that, One side wall of the plug board (1) is fixedly connected with a connector (4). An inner groove (6) is formed inside the connector (4). Two wire grooves (10) are formed in the side wall of the connector (4) far away from the plug board (1). A pair of protective baffles (7) are fixedly connected to the side wall of the inner groove (6) close to the wire grooves (10). Current-limiting resistors (11) are fixedly connected to the opposite side walls of the inner groove (6). Both ends of the current-limiting resistor (11) are fixedly connected with transfer wires (12). One end of the transfer wire (12) is fixedly connected with a transmission contact piece (13).
2. The explosion-proof socket against electric spark according to claim 1, characterized in that A wiring head (9) is arranged in the wire groove (10). The other end of the transfer wire (12) extends into the wire groove (10) and is fixedly connected with the wiring head (9). A contact piece (8) is arranged between each pair of protective baffles (7). The contact piece (8) is of a U-shaped structure. The side walls on both sides of the contact piece (8) are elastic and inclined towards the middle. One end of the wiring head (9) extends into the inner groove (6) and is fixedly connected with one end of the contact piece (8).
3. The explosion-proof socket against electric spark according to claim 1, characterized in that A plug (5) is arranged on one side of the plug board (1). Plug pieces are fixedly connected to the opposite side walls of the plug (5) and the plug board (1). A jack (2) is formed in the side of the plug board (1) opposite to the plug (5). A dust-proof board (3) is movably connected to the opening of the jack (2). The plug piece is inserted into the inner groove (6) through the jack (2).
4. The explosion-proof socket against electric spark according to claim 1, characterized in that, One end of the transmission contact piece (13) is of an inclined structure and is attached to the plug piece. One end of the plug piece located in the inner groove (6) is inserted into the contact piece (8), and the side wall of the contact piece (8) is attached to the outer wall of the plug piece.
5. The explosion-proof socket against electric spark according to claim 1, wherein A sealing head (14) is fixedly connected to the inner wall of the opening on the side of the wire groove (10) far away from the plug board (1). The sealing head (14) is of a conical flexible rubber structure. A wire passes through the sealing head (14) and extends into the wire groove (10) and is connected with the wiring head (9).