Surge protection device

Abstract

The utility model relates to a surge protection device, which comprises a protector body and a circuit board, a cavity is arranged in the protector body, and a surge protection system, a telescopic mechanism and a limiting mechanism are arranged in the cavity; the surge protection system is arranged on the circuit board, the protector body is connected to a socket in a pluggable mode, and the surge protection system judges the surge condition by detecting the current in the socket. According to the utility model, through the arrangement of the telescoping mechanism, when the three-hole plug is used, the double-hole plug can be retracted through the telescoping mechanism, when the double-hole plug is used, the three-hole plug can be retracted, and through the arrangement of the limiting mechanism, a user can conveniently control the needed jacks so as to limit the jacks. The device is simple in structure and convenient to operate, and through the technical means, the device can be adjusted according to different hole positions of the socket.

Description

Technical Field

[0001] The utility model relates to the technical field of surge protection devices, in particular to a surge protection device. Background Art

[0002] As technology develops, the protection of sensitive electronic devices becomes increasingly important. Surge protectors are an important device that can protect electronic devices from damage caused by power surges. In commercial or industrial environments, most of these protectors are integrated into cabinets to ensure the stable operation of critical equipment. However, in home environments, surge protectors are not widely used, making home electronic devices vulnerable to power surges.

[0003] The household surge protectors currently available on the market usually adopt a plug-type design, which is simple and easy to use, but has some shortcomings. First, their structure is either a triangular plug or a two-cornered plug, which limits consumers to choose the most suitable product according to the specific installation environment. For example, in some homes, the power socket may be a two-pin or three-pin design, and different types of plugs may not be compatible with all sockets, which brings inconvenience to users. Secondly, household surge protectors usually do not provide users with a variety of options to adjust their functions to adapt to different environments, which reduces their flexibility and practicality.

[0004] Therefore, those skilled in the art have proposed a surge protection device. Utility Model Content

[0005] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a surge protection device.

[0006] The technical solution of the utility model is as follows: a surge protection device comprises a protector body and a circuit board, wherein a cavity is arranged inside the protector body, and a surge protection system, a telescopic mechanism and a limiting mechanism are arranged inside the cavity;

[0007] The surge protection system is arranged on a circuit board, the protector body is connected to a socket by plugging and unplugging, and the surge protection system determines the surge condition by detecting the current in the socket;

[0008] The telescopic mechanism comprises a sliding rod, a connecting block, a three-hole plug, a two-hole plug and a spring;

[0009] The limiting mechanism includes a screw rod, a polished rod, a limiting block, an adjusting slot, a knob, and a top block;

[0010] The telescopic mechanism is used in conjunction with the limiting mechanism.

[0011] Through the above-mentioned technical means, by setting up a telescopic mechanism, when using a three-hole plug, the two-hole plug can be retracted through the telescopic mechanism, and when using a two-hole plug, the three-hole plug can be retracted. By setting up a limiting mechanism, the user can conveniently control the socket to be used, thereby limiting it and making it impossible to retract it through the telescopic mechanism, thereby achieving the purpose of use. After such a setting, it can be adjusted according to the different hole positions of the socket.

[0012] As a preferred embodiment, the number of the sliding rods is set to four, and the four sliding rods are symmetrically fixedly connected to the inside of the cavity, the number of the connecting blocks is set to two and are slidably connected to the outside of the corresponding two sliding rods, the number of the three-hole plug and the two-hole plug are set to one and are respectively connected to the outside of the connecting blocks, and the ends of the three-hole plug and the two-hole plug away from the connecting blocks extend to the outside of the protector body, and springs are sleeved on the outside of the sliding rods and between the corresponding connecting blocks and the inner wall of the cavity.

[0013] Through the above technical means, when the plug comes into contact with an external object, the connecting block will move on the sliding rod, thereby retracting the corresponding plug, and by squeezing the spring through the connecting block, the elastic force of the spring can provide a rebound force for the connecting block.

[0014] As a preferred embodiment, the screw rod and the light rod are symmetrically arranged inside the cavity and located on the outside of the sliding rod, the screw rod is rotatably connected to the cavity, the light rod is fixedly connected to the cavity, the limit block is arranged between the screw rod and the outside of the light rod, the limit block is threadedly connected to the screw rod, the limit block is slidably connected to the light rod, the adjustment groove is opened on one side of the limit block and located on the outside of the screw rod, the knob is fixedly connected to the outside of the screw rod and located inside the adjustment groove, the number of the top blocks is set to two and they are symmetrically fixedly connected to the outside of the limit block, and the top block is used in conjunction with the connecting block.

[0015] Through the above technical means, by turning the knob, the screw rod is rotated, and the screw rod will drive the limit block to move when rotating, so that the top block can be stuck to the corresponding connecting block through the up and down movement of the limit block, making it unable to move, thereby achieving a limiting effect.

[0016] As a preferred embodiment, a mounting groove is opened inside the protector body and on one side of the cavity, a circuit board is arranged inside the mounting groove, and a wire is fixedly connected to the outside of the connecting block, and one end of the wire away from the connecting block extends into the inside of the mounting groove and is fixedly connected to the circuit board.

[0017] Through the above technical means, by setting the circuit board, the circuit board is used as a carrier, so as to achieve the purpose of placing the surge protection system, and the protector body can work normally.

[0018] As a preferred implementation, a control button is disposed on the outer side of the protector body, and a display screen is disposed on the outer side of the protector body and above the control button.

[0019] Through the above technical means and the above settings, it is convenient for staff to better control and use the protector body.

[0020] As a preferred implementation manner, a slot is provided on one side of the protector body, and the knob extends to the outside of the protector body through the slot.

[0021] Through the above technical means, by setting a knob, it is convenient for the user to drive the screw rod to rotate by turning the knob.

[0022] As a preferred implementation, the surge protection system includes a metal oxide varistor, a gas discharge tube, a thermistor, a circuit breaker and a filter capacitor;

[0023] The metal oxide varistor is used to absorb high voltage spikes and disperse them to the ground line when the voltage rises to its predetermined threshold, thereby protecting the equipment connected after the protector;

[0024] The gas discharge tube is used to direct the current to the ground when the voltage exceeds its design threshold;

[0025] The thermistor is used to protect the surge protector from overheating;

[0026] The circuit breaker is used to block the flow of current to prevent further damage;

[0027] The filter capacitor is used to reduce electromagnetic interference and improve the performance of the protected equipment.

[0028] Through the above technical means, the surge protection system uses metal oxide varistors to absorb and disperse dangerous voltage spikes to the ground, gas discharge tubes to guide excessive voltage to the ground, thermistors to prevent overheating due to absorbing surge energy, circuit breakers to cut off the current in the event of internal faults or overloads, and filter capacitors to reduce electromagnetic interference to ensure the performance and safety of connected equipment.

[0029] Compared with the prior art, the advantages and positive effects of the utility model are:

[0030] The utility model provides a telescopic mechanism, so that when a three-hole plug is used, the two-hole plug can be retracted through the telescopic mechanism, and when a two-hole plug is used, the three-hole plug can be retracted. By providing a limiting mechanism, the user can conveniently control the socket to be used, thereby limiting it and making it impossible to retract it through the telescopic mechanism, thereby achieving the purpose of use. The device has a simple structure and is easy to operate, and through the above-mentioned technical means, it can be adjusted according to the different hole positions of the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a front isometric view of the utility model;

[0032] Figure 2 It is a back isometric view of the utility model;

[0033] Figure 3 It is a side sectional view of the utility model;

[0034] Figure 4 It is a top sectional view of the utility model;

[0035] Figure 5 It is an isometric view of the limiting mechanism of the utility model;

[0036] Figure 6 This is a schematic diagram of the structure of the surge protection system of the utility model.

[0037] Legend: 1. Protector body; 2. Cavity; 3. Sliding rod; 4. Connecting block; 5. Three-hole plug; 6. Two-hole plug; 7. Spring; 8. Screw rod; 9. Bare rod; 10. Limit block; 11. Adjustment slot; 12. Knob; 13. Top block; 14. Mounting slot; 15. Circuit board; 16. Wire; 17. Control button; 18. Display screen; 19. Notch. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] Example

[0041] like Figure 1-Figure 6As shown, the utility model provides a surge protection device: comprising a protector body 1 and a circuit board 15, wherein a cavity 2 is arranged inside the protector body 1, and a surge protection system, a telescopic mechanism and a limiting mechanism are arranged inside the cavity 2;

[0042] The surge protection system is arranged on the circuit board 15, and the protector body 1 is connected to the socket by plugging and unplugging. The surge protection system determines the surge situation by detecting the current in the socket;

[0043] The telescopic mechanism includes a sliding rod 3, a connecting block 4, a three-hole plug 5, a two-hole plug 6 and a spring 7;

[0044] The limiting mechanism includes a screw rod 8, a polished rod 9, a limiting block 10, an adjusting slot 11, a knob 12, and a top block 13;

[0045] The telescopic mechanism is used in conjunction with the limiting mechanism;

[0046] To sum up: by setting up a telescopic mechanism, when using a three-hole plug 5, the two-hole plug 6 can be retracted by the telescopic mechanism, and when using a two-hole plug 6, the three-hole plug 5 can be retracted. By setting up a limiting mechanism, the user can conveniently control the socket to be used, thereby limiting it and making it impossible to retract it by the telescopic mechanism, thereby achieving the purpose of use. After such a setting, it can be adjusted according to the different hole positions of the socket.

[0047] The number of sliding rods 3 is set to four, and the four sliding rods 3 are symmetrically fixedly connected to the inside of the cavity 2. The number of connecting blocks 4 is set to two and both are slidably connected to the outside of the corresponding two sliding rods 3. The number of three-hole plugs 5 and two-hole plugs 6 is set to one and are respectively connected to the outside of the connecting blocks 4. The ends of the three-hole plug 5 and the two-hole plug 6 away from the connecting block 4 extend to the outside of the protector body 1. The outside of the sliding rod 3 and between the corresponding connecting block 4 and the inner wall of the cavity 2 are sleeved with springs 7;

[0048] To sum up: when the plug comes into contact with an external object, the connecting block 4 will move on the sliding rod 3, thereby retracting the corresponding plug, and by squeezing the spring 7 through the connecting block 4, the elastic force of the spring 7 can provide a rebound force for the connecting block 4.

[0049] The screw rod 8 and the polished rod 9 are symmetrically arranged inside the cavity 2 and located on the outside of the sliding rod 3. The screw rod 8 is rotatably connected to the cavity 2, and the polished rod 9 is fixedly connected to the cavity 2. The limit block 10 is arranged between the screw rod 8 and the outside of the polished rod 9. The limit block 10 is threadedly connected to the screw rod 8, and the limit block 10 is slidably connected to the polished rod 9. The adjustment groove 11 is opened on one side of the limit block 10 and is located on the outside of the screw rod 8. The knob 12 is fixedly connected to the outside of the screw rod 8 and is located inside the adjustment groove 11. The number of the top blocks 13 is set to two and is symmetrically fixedly connected to the outside of the limit block 10. The top block 13 is used in conjunction with the connecting block 4;

[0050] To sum up: by turning the knob 12, the screw rod 8 is rotated, and the screw rod 8 will drive the limit block 10 to move when rotating, so that the top block 13 can be stuck to the corresponding connecting block 4 through the up and down movement of the limit block 10, making it unable to move, thereby achieving a limiting effect.

[0051] A mounting groove 14 is provided inside the protector body 1 and on one side of the cavity 2. A circuit board 15 is provided inside the mounting groove 14. A wire 16 is fixedly connected to the outside of the connecting block 4. One end of the wire 16 away from the connecting block 4 extends into the mounting groove 14 and is fixedly connected to the circuit board 15.

[0052] In summary, by providing the circuit board 15 , the circuit board 15 is used as a carrier, so as to achieve the purpose of placing the surge protection system, and the protector body 1 can work normally.

[0053] A control button 17 is disposed on the outside of the protector body 1, and a display screen 18 is disposed on the outside of the protector body 1 and above the control button 17;

[0054] In summary: the above arrangement enables the staff to better control and use the protector body 1.

[0055] A notch 19 is provided on one side of the protector body 1, and the knob 12 extends through the notch 19 to the outside of the protector body 1;

[0056] In summary, by providing the knob 12 , it is convenient for the user to drive the screw rod 8 to rotate by turning the knob 12 .

[0057] The surge protection system includes metal oxide varistors, gas discharge tubes, thermistors, circuit breakers and filter capacitors;

[0058] Metal oxide varistors are used to absorb high voltage spikes and disperse them to ground when the voltage rises to its predetermined threshold, thereby protecting the equipment connected after the protector;

[0059] Gas discharge tubes are used to direct current to ground when the voltage exceeds its designed threshold;

[0060] Thermistors are used to protect surge protectors from overheating;

[0061] Circuit breakers are used to interrupt the flow of current and prevent further damage;

[0062] Filter capacitors are used to reduce electromagnetic interference and improve the performance of the protected equipment;

[0063] To summarize: surge protection systems utilize metal oxide varistors to absorb and disperse dangerous voltage spikes to ground, gas discharge tubes to direct excessive voltage to ground, thermistors to prevent overheating due to absorbed surge energy, circuit breakers to cut off current in the event of an internal fault or overload, and filter capacitors to reduce electromagnetic interference to ensure the performance and safety of connected equipment.

[0064] Working principle:

[0065] By setting a telescopic mechanism, when a three-hole plug 5 is used, the two-hole plug 6 can be retracted by the telescopic mechanism, and when a two-hole plug 6 is used, the three-hole plug 5 can be retracted. The specific steps are as follows: when the plug contacts an external object, the connecting block 4 will move on the sliding rod 3, so that the corresponding plug will be retracted, and the spring 7 can be squeezed by the connecting block 4, and the elastic force of the spring 7 can be used as a rebound force for the connecting block 4, and by setting a limiting mechanism, the user can conveniently control the jack to be used, so as to limit it and make it unable to be retracted by the telescopic mechanism, thereby achieving the purpose of use, and the specific steps are as follows: by turning the knob 12, the screw rod 8 is rotated, and the screw rod 8 drives the limiting block 10 to move when it rotates, so that the top block 13 can be clamped on the corresponding connecting block 4 by the up and down movement of the limiting block 10, so that it cannot move, thereby achieving the limiting effect, the device has a simple structure and is easy to operate, and after such a setting, it can be adjusted according to the different hole positions of the socket;

[0066] In addition, when the device is in use, the surge protection system utilizes metal oxide varistors to absorb and disperse dangerous voltage spikes to the ground, gas discharge tubes to guide excessive voltage to the ground, thermistors to prevent overheating due to absorbing surge energy, circuit breakers to cut off current in the event of internal faults or overloads, and filter capacitors to reduce electromagnetic interference to ensure the performance and safety of connected equipment.

[0067] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A surge protection device, comprising a protector body (1) and a circuit board (15), characterized in that: The protector body (1) is provided with a cavity (2) inside, and the cavity (2) is provided with a surge protection system, a telescopic mechanism and a limiting mechanism inside; The surge protection system is arranged on a circuit board (15), the protector body (1) is connected to a socket by plugging and unplugging, and the surge protection system determines the surge condition by detecting the current in the socket; The telescopic mechanism comprises a sliding rod (3), a connecting block (4), a three-hole plug (5), a two-hole plug (6) and a spring (7); The limiting mechanism comprises a screw rod (8), a polished rod (9), a limiting block (10), an adjusting slot (11), a knob (12), and a top block (13); The telescopic mechanism is used in conjunction with the limiting mechanism.

2. A surge protection device according to claim 1, characterized in that: The number of the sliding rods (3) is set to four, and the four sliding rods (3) are symmetrically fixedly connected inside the cavity (2). The number of the connecting blocks (4) is set to two and are slidably connected to the outside of the corresponding two sliding rods (3). The number of the three-hole plug (5) and the two-hole plug (6) are set to one and are respectively connected to the outside of the connecting block (4). One end of the three-hole plug (5) and the two-hole plug (6) away from the connecting block (4) extends to the outside of the protector body (1). A spring (7) is sleeved on the outside of the sliding rod (3) and between the corresponding connecting block (4) and the inner wall of the cavity (2).

3. A surge protection device according to claim 1, characterized in that: The screw rod (8) and the smooth rod (9) are symmetrically arranged inside the cavity (2) and located outside the sliding rod (3); the screw rod (8) is rotatably connected to the cavity (2); the smooth rod (9) is fixedly connected to the cavity (2); the limit block (10) is arranged between the screw rod (8) and the outside of the smooth rod (9); the limit block (10) is threadedly connected to the screw rod (8); the limit block (10) is slidably connected to the smooth rod (9); the adjustment groove (11) is opened on one side of the limit block (10) and located outside the screw rod (8); the knob (12) is fixedly connected to the outside of the screw rod (8) and located inside the adjustment groove (11); the number of the top blocks (13) is set to two and they are symmetrically fixedly connected to the outside of the limit block (10); the top block (13) is used in conjunction with the connecting block (4).

4. A surge protection device according to claim 1, characterized in that: A mounting groove (14) is provided inside the protector body (1) and on one side of the cavity (2); a circuit board (15) is provided inside the mounting groove (14); a wire (16) is fixedly connected to the outside of the connecting block (4); and one end of the wire (16) away from the connecting block (4) extends into the mounting groove (14) and is fixedly connected to the circuit board (15).

5. A surge protection device according to claim 1, characterized in that: A control button (17) is arranged on the outside of the protector body (1), and a display screen (18) is arranged on the outside of the protector body (1) and above the control button (17).

6. A surge protection device according to claim 1, characterized in that: A notch (19) is provided on one side of the protector body (1), and the knob (12) extends through the notch (19) to the outside of the protector body (1).

7. A surge protection device according to claim 1, characterized in that: The surge protection system includes a metal oxide varistor, a gas discharge tube, a thermistor, a circuit breaker and a filter capacitor; The metal oxide varistor is used to absorb high voltage spikes and disperse them to the ground line when the voltage rises to its predetermined threshold, thereby protecting the equipment connected after the protector; The gas discharge tube is used to direct the current to the ground when the voltage exceeds its design threshold; The thermistor is used to protect the surge protector from overheating; The circuit breaker is used to block the flow of current to prevent further damage; The filter capacitor is used to reduce electromagnetic interference and improve the performance of the protected equipment.

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