CN221979279U - A power supply overvoltage protection device - Google Patents

Abstract

The utility model provides a power supply overvoltage protection device, including a support frame, an overvoltage protector is arranged at the right end of the support frame, the outer surface of the overvoltage protector is recessed inwardly to form a plurality of grooves at equal intervals, a cylinder is arranged in the groove, the cylinder is electrically connected to the overvoltage protector, a cylinder is arranged in the cylinder, one end of a first elastic member is arranged toward the inner end of the cylinder, the other end of the first elastic member is connected to the cylinder, the right surface of the cylinder is recessed to the left to form a through hole penetrating the left and right surfaces of the cylinder, an inclined surface for use with a circular rod is opened at the right end of the cylinder, one end of the circular rod is arranged in contact with the inclined surface, and the other end of the circular rod passes through the overvoltage protector and extends to the right side of the overvoltage protector. This design uses a cylinder and a through hole instead of traditional bolts to fix the wire core, reduces the complexity of operation, and prevents damage to the wire core.

Description

A power supply overvoltage protection device

Technical Field

The utility model relates to a power supply overvoltage protection device, belonging to the technical field of power supplies.

Background Art

A power supply is a device that converts other forms of energy into electrical energy and provides electrical energy to a circuit. In order to prevent power surges, voltage instability, overvoltage, undervoltage, and other problems, a power supply overvoltage protection device is generally used to protect the power supply.

In the prior art, an overvoltage protector is also a type of power supply overvoltage protection device. When the overvoltage protector is currently used, the wire is first stripped to expose the wire core inside the wire, and then the exposed wire core is inserted into the connection port of the overvoltage protector to connect the wire to the overvoltage protector, thereby installing the overvoltage protector on the current path for voltage protection. At the same time, in order to ensure the connection strength between the overvoltage protector and the wire, the wire core entering the overvoltage protector is generally squeezed and fixed by bolts to ensure the connection strength between the wire and the overvoltage protector;

However, when the wire core is fixed by bolts, the bolts need to be rotated when entering the overvoltage protector, so the wire core is easily damaged during the rotation process. At the same time, the bolts need to be rotated in the process of fixing the wire core, which increases the complexity of the operation. Therefore, it is necessary to design a power supply overvoltage protection device to solve the above problems.

Utility Model Content

In view of the deficiencies in the prior art, the purpose of the utility model is to provide a power supply overvoltage protection device to solve the problems raised in the above-mentioned background technology. The utility model uses cylinders and through holes instead of traditional bolts to fix the wire core, thereby reducing the complexity of operation and preventing damage to the wire core.

In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a power supply overvoltage protection device, including a support frame, an overvoltage protector is arranged at the right end of the support frame, the outer surface of the overvoltage protector is recessed inward to form a plurality of grooves at equal intervals, a cylinder is arranged in the groove, the cylinder is electrically connected to the overvoltage protector, a cylinder is arranged in the cylinder, one end of a first elastic member is arranged toward the inner end of the cylinder, the other end of the first elastic member is connected to the cylinder, the right surface of the cylinder is recessed to the left to form a through hole penetrating the left and right surfaces of the cylinder, an inclined surface for use with a circular rod is opened at the right end of the cylinder, one end of the circular rod is arranged in contact with the inclined surface, and the other end of the circular rod passes through the overvoltage protector and extends to the right side of the overvoltage protector.

Furthermore, multiple support plates are equidistantly arranged at the upper and lower ends of the overvoltage protector, the right surface of the support plate is recessed to the left to form a circular hole, the cap of the bolt is arranged at the right end of the support plate, the rod of the bolt passes through the circular hole and extends into the support frame, and the rod of the bolt is threadedly connected to the support frame.

Furthermore, an end cover is arranged on the outer end of the cylinder, and the end cover is attached to the outer end of the overvoltage protector, and the end cover has a circular structure.

Furthermore, the outer surface of the end cover is recessed inward to form a concave hole, and the concave hole penetrates the inner and outer surfaces of the end cover, and the concave hole is an arc-shaped structure.

Furthermore, a circular plate is arranged at the right end of the circular rod, an insulating sleeve is sleeved on the outer end of the circular plate, and an anti-slip pattern is provided on the outer end of the insulating sleeve.

Furthermore, one end of a second elastic member is disposed at the left end of the circular plate, the other end of the second elastic member is connected to the overvoltage protector, and the second elastic member is disposed outside the circular rod.

Furthermore, a telescopic rod is arranged in the first elastic member, a fixed end of the telescopic rod is arranged at the inner end of the cylinder, and a movable end of the telescopic rod is connected to the cylinder.

Beneficial effects of the utility model:

1. Press the circular plate to make the circular rod contact the cylinder, so that the cylinder moves outward, and then the stripped wire core is passed through the through hole. After the penetration is completed, loosen the circular plate, so that the circular plate moves to the original designed position under the action of elastic force. At this time, the cylinder moves inward under the action of elastic force, so that the wire core is bent. The wire core is fixed by the cylinder and the through hole instead of the traditional bolt, which reduces the complexity of the operation and prevents damage to the wire core.

2. Place the overvoltage protector in a suitable position, insert the rod of the bolt into the round hole, and rotate the bolt. Because the rod of the bolt is threadedly connected to the support frame, rotating the bolt will cause the rod of the bolt to enter the support frame. Repeat the above operation to fix several other support plates to fix the overvoltage protector.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

FIG1 is a schematic diagram of the structure of a power supply overvoltage protection device of the utility model;

FIG2 is a schematic diagram of a concave hole in a power supply overvoltage protection device of the utility model;

FIG3 is an enlarged view of portion A of FIG1 ;

In the figure: 1-support frame, 2-overvoltage protector, 3-cylinder, 4-circular rod, 5-first elastic member, 6-through hole, 7-cylinder, 21-support plate, 22-bolt, 31-end cover, 32-concave hole, 41-second elastic member, 42-circular plate, 51-telescopic rod.

DETAILED DESCRIPTION

In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

Please refer to Figures 1 and 2. The utility model provides a technical solution: a power supply overvoltage protection device, including a support frame 1, through which the support frame 1 provides an installation space for the overvoltage protector 2, the overvoltage protector 2 is arranged at the right end of the support frame 1, and the overvoltage protector 2 is used to protect the power supply, and a plurality of support plates 21 are equidistantly arranged at the upper and lower ends of the overvoltage protector 2, and the overvoltage protector 2 is fixed by the support plate 21, and the right surface of the support plate 21 is recessed to the left to form a circular hole, and the circular hole is used to provide an installation space for the bolt 22, and the cap of the bolt 22 is arranged at the right end of the support plate 21, and the support plate 21 is fixed by the bolt 22, and the rod of the bolt 22 passes through the circular hole and extends into the support frame 1, and the rod of the bolt 22 is threadedly connected to the support frame 1.

When in use, first pick up the overvoltage protector 2, and then place the overvoltage protector 2 in a suitable position. At this time, pick up the bolt 22 and align the rod of the bolt 22 with the circular hole opened on the support plate 21. After the alignment is completed, the rod of the bolt 22 is inserted into the circular hole and the bolt 22 is rotated. Since the rod of the bolt 22 is threadedly connected to the support frame 1, rotating the bolt 22 will cause the rod of the bolt 22 to enter the support frame 1. Repeat the above operation to fix several other support plates 21 to achieve the fixation of the overvoltage protector 2.

Please refer to Figures 1, 2 and 3. The outer surface of the overvoltage protector 2 is recessed inward to form a plurality of grooves at equal intervals, and the grooves provide installation space for the cylinder 7. The cylinder 7 is arranged in the grooves, and the cylinder 7 is used to provide installation space for the cylinder 3. The cylinder 7 is electrically connected to the overvoltage protector 2. The cylinder 3 is arranged in the cylinder 7, and the through hole 6 is opened through the cylinder 3. One end of the first elastic member 5 is arranged toward the inner end of the cylinder 7, and the movement of the cylinder 3 is achieved by the first elastic member 5. The other end of the first elastic member 5 is connected to the cylinder 3. The right surface of the cylinder 3 is recessed to the left to form a through hole 6 that penetrates the left and right surfaces of the cylinder 3. The through hole 6 provides installation space for the wire core. The right end of the cylinder 3 is provided with an inclined surface used in conjunction with the circular rod 4, and one end of the circular rod 4 is arranged in a fit with the inclined surface. The movement of the cylinder 3 is achieved by the circular rod 4, and the other end of the circular rod 4 passes through the overvoltage protector 2 and extends to the right side of the overvoltage protector 2.

An end cap 31 is provided at the outer end of the cylinder 3, and the groove is sealed by the end cap 31. The end cap 31 is attached to the outer end of the overvoltage protector 2. The end cap 31 is a circular structure. The outer surface of the end cap 31 is recessed inward to form a concave hole 32. The concave hole 32 is used to provide an installation space for the wire. The concave hole 32 passes through the inner and outer surfaces of the end cap 31. The concave hole 32 is an arc-shaped structure. A circular plate 42 is provided at the right end of the circular rod 4. The circular plate 42 is used to realize the movement of the circular rod 4. An insulating sleeve is set on the outer end of the circular plate 42, and the insulating sleeve is used to realize insulation operation. The outer end of the insulating sleeve is provided with anti-slip grooves to increase the friction force. One end of the second elastic member 41 is provided at the left end of the circular plate 42, and the second elastic member 41 is used to realize the movement of the circular plate 42. The other end of the second elastic member 41 is connected to the overvoltage protector 2. The second elastic member 41 is provided on the outside of the circular rod 4. A telescopic rod 51 is provided in the first elastic member 5, and the cylinder 3 is guided by the telescopic rod 51. The fixed end of the telescopic rod 51 is provided at the inner end of the cylinder 7, and the movable end of the telescopic rod 51 is connected to the cylinder 3.

When the overvoltage protector 2 is fixed, the circular plate 42 is pressed first, so that the circular rod 4 connected to the circular plate 42 moves, and then the second elastic member 41 connected to the circular plate 42 is squeezed during the movement of the circular plate 42, and the second elastic member 41 generates an elastic force, and the circular rod 4 moves to contact the cylinder 3, so that the cylinder 3 moves outward, and the first elastic member 5 connected to the cylinder 3 is stretched, and the first elastic member 5 generates an elastic force, and at the same time, the through hole 6 opened on the cylinder 3 moves out of the cylinder 7, so that The stripped wire core passes through the through hole 6. After the penetration is completed, the pressure on the circular plate 42 is released, so that the circular plate 42 moves to the right under the elastic force of the second elastic member 41, and then the circular plate 42 moves to the original design position. At this time, the cylinder 3 moves inward under the elastic force of the first elastic member 5, thereby driving the wire core to move inward, and then the wire core is bent, and the bent wire core is placed between the cylinder 3 and the cylinder 7, so that the wire is clamped in the recessed hole 32. The wire core is fixed by the cylinder 3 and the through hole 6 instead of the traditional bolt 22, which reduces the complexity of the operation and prevents damage to the wire core.

In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims (7)

1. A power supply overvoltage protection device, characterized in that it comprises a support frame (1), an overvoltage protector (2) is arranged at the right end of the support frame (1), the outer surface of the overvoltage protector (2) is recessed inwardly to form a plurality of grooves at equal intervals, a cylinder (7) is arranged in the groove, the cylinder (7) is electrically connected to the overvoltage protector (2), a cylinder (3) is arranged in the cylinder (7), one end of a first elastic member (5) is arranged at the inner end of the cylinder (7), the other end of the first elastic member (5) is connected to the cylinder (3), the right surface of the cylinder (3) is recessed to the left to form a through hole (6) penetrating the left and right surfaces of the cylinder (3), the right end of the cylinder (3) is provided with an inclined surface for use with a circular rod (4), one end of the circular rod (4) is arranged in contact with the inclined surface, and the other end of the circular rod (4) passes through the overvoltage protector (2) and extends to the right side of the overvoltage protector (2). 2. The power supply overvoltage protection device according to claim 1 is characterized in that: a plurality of support plates (21) are equidistantly arranged at the upper and lower ends of the overvoltage protector (2), the right surface of the support plate (21) is recessed to the left to form a circular hole, a cap of a bolt (22) is arranged at the right end of the support plate (21), the rod of the bolt (22) passes through the circular hole and extends into the support frame (1), and the rod of the bolt (22) is threadedly connected to the support frame (1). 3. The power supply overvoltage protection device according to claim 1, characterized in that: an end cover (31) is provided on the outer end of the cylinder (3), the end cover (31) is attached to the outer end of the overvoltage protector (2), and the end cover (31) is a circular structure. 4. The power supply overvoltage protection device according to claim 3, characterized in that: the outer surface of the end cover (31) is recessed inward to form a concave hole (32), the concave hole (32) passes through the inner and outer surfaces of the end cover (31), and the concave hole (32) is an arc-shaped structure. 5. The power supply overvoltage protection device according to claim 1, characterized in that: a round plate (42) is arranged at the right end of the round rod (4), an insulating sleeve is sleeved on the outer end of the round plate (42), and an anti-slip groove is provided on the outer end of the insulating sleeve. 6. The power supply overvoltage protection device according to claim 5, characterized in that: one end of a second elastic member (41) is arranged at the left end of the circular plate (42), the other end of the second elastic member (41) is connected to the overvoltage protector (2), and the second elastic member (41) is arranged outside the circular rod (4). 7. The power supply overvoltage protection device according to claim 1, characterized in that: a telescopic rod (51) is arranged inside the first elastic member (5), a fixed end of the telescopic rod (51) is arranged at the inner end of the cylinder (7), and a movable end of the telescopic rod (51) is connected to the cylinder (3).