A power supply automatic protection device

Abstract

This invention discloses an automatic power supply protection device, relating to the field of power supply safety technology. It includes a main body with a mounting clip fixedly connected to its back. A sealed cavity, filled with gas, is formed inside the main body. One end of the sealed cavity is used to insert a copper wire. A self-tapping screw is threaded onto the surface of the main body, used to press the side of the copper wire. A pressure guide block is provided inside the sealed cavity. The sealed cavity exerts air pressure on one side of the pressure guide block, causing it to press against the side of the copper wire. A warning mechanism is provided on the front of the main body. This device controls the pressure of the copper wire, ensuring good contact while preventing excessive pressure. Observing the position of the warning slider allows for determination of the depth of the copper wire entering the sealed cavity, ensuring proper connection.

Description

Technical Field

[0001] This invention relates to the field of power supply safety technology, and specifically to an automatic power supply protection device. Background Technology

[0002] During the use of electricity, the aging of electrical appliances and wiring can cause short circuits in the entire circuit. Short circuits can easily lead to safety accidents. Therefore, automatic protection devices need to be installed when supplying electricity. For example, the commonly used automatic protection device for indoor power supply is the air switch.

[0003] Existing automatic power supply protection devices need to be connected in series to the power supply circuit. Therefore, the automatic power supply protection device is connected to the main power supply line. However, there are several issues when connecting the main power supply line to the automatic power supply protection device:

[0004] First, the length of the main power line entering the automatic power supply protection device is usually controlled by technicians based on experience. This can lead to inconsistent depths of the main power line entering the automatic power supply protection device. When the depth is insufficient, the main power line is prone to falling off.

[0005] Secondly, the installation of the automatic power supply protection device is separate from the installation of the main power line. This makes it easy for technicians to make mistakes when maintaining the automatic power supply protection device, such as disassembling the automatic power supply protection device while the main power line is connected to it, which can easily cause safety hazards. Summary of the Invention

[0006] In order to overcome the above-mentioned technical problems, the purpose of this invention is to provide an automatic power supply protection device to solve the problems in the prior art where the insertion depth of the main power line cannot be accurately controlled and the main power line is prone to falling off when the depth is insufficient, as well as the problem that disassembling the automatic power supply protection device while the main power line is connected to the automatic power supply protection device during maintenance can easily cause safety hazards.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] An automatic power supply protection device, comprising:

[0009] The main body of the device has a mounting clip fixedly connected to its back.

[0010] A sealed cavity is formed inside the main body of the device. The sealed cavity is filled with gas, and one end of the outer side of the sealed cavity is used to insert and connect copper wires.

[0011] Self-tapping screws, which are threaded onto the surface of the device body, are used to press the sides of the mating copper wires;

[0012] A pressure guide block is disposed inside a sealed cavity. The sealed cavity applies air pressure to one side of the pressure guide block, causing the pressure guide block to press against the side of the mating copper wire.

[0013] A warning mechanism is provided on the front of the main body of the device, and the warning mechanism is used to monitor the depth of the copper wire inserted into the sealing cavity.

[0014] The anti-disengagement latch is located on the inside of the mounting clip.

[0015] As a further aspect of the present invention: a sealing slider is provided on the inner side of the sealing cavity, and an anti-detachment block is fixedly connected to the side wall of the sealing cavity near the outer side of the sealing slider.

[0016] As a further aspect of the present invention, the gas inside the sealed cavity is nitrogen.

[0017] As a further aspect of the present invention: a sliding groove that fits into the pressure guide block is provided inside the main body of the device near the pressure guide block, an arc-shaped groove is provided on the side of the pressure guide block near the sealing cavity, and a spring is fixedly connected to the other side of the pressure guide block and communicates with one end of the inner side of the sealing cavity.

[0018] As a further aspect of the present invention: the warning mechanism includes a warning slider, and a warning groove that fits into the warning slider is provided inside the warning slider near the warning slider. One end of the warning groove is connected to one end of the inner side of the sealing cavity.

[0019] As a further aspect of the present invention, a compression spring is fixedly connected to the side of the warning slider away from the sealing cavity.

[0020] As a further aspect of the present invention: a locking tongue groove is provided on the inner side of the mounting card near the anti-loosening locking tongue, which fits into the anti-loosening locking tongue. One end of the inner side of the locking tongue groove is connected to one end of the inner side of the sealing cavity, and a return spring is fixedly connected to one end of the inner side of the anti-loosening locking tongue.

[0021] The beneficial effects of this invention are:

[0022] With the set sealing cavity and pressure guide block, the air pressure in the sealing cavity will act on the pressure guide block. Because the pressure guide block is subjected to air pressure, it can be tightly attached to the copper wire and at the same time control the pressure of the copper wire to ensure good contact.

[0023] With the sealing cavity and warning mechanism, the air pressure in the sealing cavity will act on the inner end of the warning slider and overcome the elastic force of the compression spring, causing the warning slider to slide to one side of the warning groove. By observing the position of the warning slider, the depth of the copper wire entering the sealing cavity can be determined, which can ensure that the copper wire is properly connected.

[0024] With the sealed cavity and anti-disengagement locking tongue, the air pressure can overcome the elasticity of the return spring, allowing the anti-disengagement locking tongue to enter the locking tongue groove on the mounting surface. This can further enhance the safety and stability of the main body of the device and avoid the safety hazards caused by disassembling the main body of the device before disconnecting the copper wire. Attached Figure Description

[0025] The invention will now be further described with reference to the accompanying drawings.

[0026] Figure 1 This is a side sectional view of the invention;

[0027] Figure 2 This is a schematic diagram of the pressure guide block in the invention;

[0028] Figure 3 yes Figure 1 A magnified view of a section at point A in the middle;

[0029] Figure 4 yes Figure 1 A magnified view of a section at point B.

[0030] In the diagram: 1. Main body of the device; 11. Lever; 2. Sealing cavity; 21. Sealing slider; 22. Anti-detachment block; 3. Mounting clip; 4. Connecting copper wire; 5. Self-tapping screw; 6. Pressure guide block; 61. Arc groove; 7. Warning mechanism; 71. Warning slider; 72. Compression spring; 73. Warning groove; 8. Anti-detachment locking tongue; 9. Return spring. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figures 1-4As shown, an automatic power supply protection device includes a device body 1, a mounting clip 3 fixedly connected to the back of the device body 1, a lever 11 on the front of the device body 1 for controlling the opening and closing of the circuit of the device body 1, a sealed cavity 2 inside the device body 1 filled with gas, one end of the outer side of the sealed cavity 2 for inserting a connecting copper wire 4, a self-tapping screw 5 threaded on the surface of the device body 1 for pressing the side of the connecting copper wire 4, a pressure guide block 6 inside the sealed cavity 2, the sealed cavity 2 acting on one side of the pressure guide block 6 through air pressure, causing the pressure guide block 6 to press the side of the connecting copper wire 4, a warning mechanism 7 on the front of the device body 1 for monitoring the depth of the connecting copper wire 4 inserted into the sealed cavity 2, and an anti-disengagement tongue 8 on the inner side of the mounting clip 3.

[0033] During operation, the main body 1 of the device is mounted on the wall using the mounting clip 3, and then the connecting copper wire 4 is inserted into the sealed cavity 2.

[0034] like Figure 1 As shown, a sealing slider 21 is provided on the inner side of the sealing cavity 2, and an anti-detachment block 22 is fixedly connected to the side wall of the sealing cavity 2 near the outer side of the sealing slider 21.

[0035] During the process of inserting the copper wire 4 into the sealing cavity 2, the copper wire 4 will squeeze the sealing slider 21, causing the sealing slider 21 to slide along the side wall of the sealing cavity 2, squeezing the gas inside the sealing cavity 2. Since the gas inside the sealing cavity 2 is in a sealed environment, after the sealing slider 21 reduces the volume inside the sealing cavity 2, the gas pressure inside the sealing cavity 2 will increase, that is, to create a high-pressure state inside the sealing cavity 2.

[0036] like Figure 1 As shown, the gas inside the sealed cavity 2 is nitrogen. Nitrogen is chemically very inert, so it can make the internal environment of the sealed cavity 2 more stable. Nitrogen can also be replaced with an inert gas.

[0037] like Figure 2 As shown, a sliding groove that fits into the pressure guide block 6 is provided inside the main body 1 of the device near the pressure guide block 6. An arc-shaped groove 61 is provided on the side of the pressure guide block 6 near the sealing cavity 2. A spring is fixedly connected to the other side of the pressure guide block 6 and is connected to one end of the inner side of the sealing cavity 2.

[0038] Since the other side of the pressure guide block 6 is connected to the inner side of the sealing cavity 2, after a high pressure is formed inside the sealing cavity 2, the air pressure will overcome the elasticity on the pressure guide block 6, causing the pressure guide block 6 to slide towards the copper wire 4 and press against the side of the copper wire 4. The arc-shaped groove 61 opened on the side of the pressure guide block 6 near the sealing cavity 2 can increase the contact area with the side of the copper wire 4. Because the pressure guide block 6 is subjected to air pressure, it can be tightly attached to the copper wire 4, and at the same time, the pressure of the copper wire 4 can be controlled to ensure good contact.

[0039] like Figure 1 As shown, the pressure guide block 6 is positioned close to the anti-detachment block 22. The anti-detachment block 22 can restrict the sliding position of the sealing slider 21. During the sliding process of the sealing slider 21 towards the inside of the sealing cavity 2, it is divided into two stages:

[0040] In the first stage, the sealing slider 21 will block the pressure guide block 6, restricting the position of the pressure guide block 6;

[0041] In the second stage, the sealing slider 21 disengages from the pressure guide block 6, at which point the pressure guide block 6 will press against the side of the mating copper wire 4.

[0042] like Figure 3 As shown, the warning mechanism 7 includes a warning slider 71. A warning groove 73 is provided inside the warning slider 71 near the warning slider 71, which fits into the warning slider 71. One end of the inner side of the warning groove 73 is connected to one end of the inner side of the sealing cavity 2. A compression spring 72 is fixedly connected to the side of the warning slider 71 away from the sealing cavity 2.

[0043] Since one end of the warning groove 73 is connected to one end of the sealed cavity 2, after a high-pressure state is formed inside the sealed cavity 2, the air pressure will act on one end of the warning slider 71 and overcome the elastic force of the compression spring 72, causing the warning slider 71 to slide to one side of the warning groove 73. The deeper the connecting copper wire 4 enters the sealed cavity 2, the greater the air pressure, and the greater the displacement distance of the warning slider 71 against the compression spring 72. Finally, after the connecting copper wire 4 is completely entered into the sealed cavity 2, the end face of the outer end of the warning slider 71 is flush with the front of the device body 1. By installing the connecting copper wire 4 and observing the position of the warning slider 71, the depth of the connecting copper wire 4 entering the sealed cavity 2 can be determined, ensuring that the connecting copper wire 4 is properly connected.

[0044] like Figure 4 As shown, a locking tongue groove that matches the locking tongue 8 is provided on the inner side of the mounting card 3 near the anti-loosening locking tongue 8. One end of the locking tongue groove is connected to one end of the inner side of the sealing cavity 2. A return spring 9 is fixedly connected to one end of the inner side of the anti-loosening locking tongue 8. A locking tongue groove that matches the anti-loosening locking tongue 8 is provided on the mounting surface that mates with the mounting card 3 at the position corresponding to the anti-loosening locking tongue 8.

[0045] Since one end of the inner side of the locking tongue groove is connected to one end of the inner side of the sealing cavity 2, after a high pressure is formed inside the sealing cavity 2, the air pressure can overcome the elastic force of the return spring 9, causing the anti-loosening locking tongue 8 to enter the locking tongue groove of the mounting surface. This can further enhance the safety and firmness of the main body 1 of the device, and also avoid the safety hazards caused by disassembling the main body 1 of the device before disassembling the connecting copper wire 4.

[0046] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A power supply automatic protection device, characterized by comprising: include: The device body (1) has an installation card (3) fixedly connected to its back side. A sealed cavity (2) is formed inside the main body (1) of the device. The sealed cavity (2) is filled with gas. One end of the outer side of the sealed cavity (2) is used to insert and connect the copper wire (4). Self-tapping screws (5) are threaded onto the surface of the device body (1) and are used to press the side of the mating copper wire (4). Pressure guide block (6), the pressure guide block (6) is set inside the sealing cavity (2), the sealing cavity (2) acts on one side of the pressure guide block (6) by air pressure, so that the pressure guide block (6) is squeezed against the side of the copper wire (4); Warning mechanism (7), which is located on the front of the main body (1) of the device, is used to monitor the depth of the copper wire (4) inserted into the sealing cavity (2); Anti-disengagement latch (8), the anti-disengagement latch (8) is located on the inside of the mounting clip (3); The sealing cavity (2) is provided with a sealing slider (21) on the inner side, and an anti-detachment block (22) is fixedly connected to the side wall of the sealing cavity (2) near the outer side of the sealing slider (21). The warning mechanism (7) includes a warning slider (71). The inside of the warning slider (71) near the warning slider (71) is provided with a warning groove (73) that matches the warning slider (71). One end of the inner side of the warning groove (73) is connected to one end of the inner side of the sealing cavity (2). The inner side of the mounting clip (3) near the anti-loosening latch (8) is provided with a latch groove that matches the anti-loosening latch (8). One end of the latch groove is connected to one end of the inner side of the sealing cavity (2). A return spring (9) is fixedly connected to one end of the inner side of the anti-loosening latch (8).

2. The power supply automatic protection device according to claim 1, wherein The gas inside the sealed cavity (2) is nitrogen.

3. The power supply automatic protection device according to claim 1, wherein The device body (1) has a sliding groove that fits with the pressure guide block (6) at the position inside. The pressure guide block (6) has an arc groove (61) on one side near the sealing cavity (2). A spring is fixedly connected to the other side of the pressure guide block (6) and is connected to one end of the inner side of the sealing cavity (2).

4. The power supply automatic protection device according to claim 3, wherein A compression spring (72) is fixedly connected to the side of the warning slider (71) away from the sealing cavity (2).

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