Over-voltage and under-voltage protector with alarm function

Abstract

The utility model discloses an overvoltage and undervoltage protector with an alarm function, which belongs to the technical field of overvoltage and undervoltage protectors and comprises a protector body, an alarm lamp is arranged on the front side of the protector body, and a voltage value detection connecting line and a voltage normality detection connecting line are arranged in the alarm lamp. According to the utility model, through the arrangement of the voltage value detection connecting line, the voltage normality detection connecting line, the alarm lamp, the threaded rod, the threaded sleeve and the clamping block, when the protector body is in a recovery state and an alarm state, the alarm lamp can give a corresponding prompt according to a voltage result; meanwhile, by means of the device, a protector body is not installed between a clamping jaw in a clamping groove and a guide rail traditionally, and the situation that the clamping groove with the interval being a fixed value is difficult to adapt to guide rails of different sizes is avoided; therefore, various installation requirements between the protector body and different guide rails can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of over-voltage and under-voltage protectors, and in particular relates to an over-voltage and under-voltage protector with an alarm function. Background Art

[0002] An overvoltage and undervoltage protector refers to a device that can automatically disconnect when the overvoltage and undervoltage in the circuit exceed the specified value, and can automatically detect the line voltage, and can automatically close when the voltage in the circuit returns to normal. It is mainly used in household and shopping mall distribution lines for overvoltage, undervoltage, phase loss and neutral line loss protection. However, when the existing overvoltage and undervoltage protector is in the recovery state and the alarm state, the red alarm light is usually always on, resulting in the inability to distinguish its power-on state and making it difficult to repair. At the same time, the existing overvoltage and undervoltage protector is usually installed between the claws in the card slot and the guide rail, resulting in the card slot with a fixed spacing being difficult to fit guide rails of different sizes, which will cause the installation of the overvoltage and undervoltage protector to fail. Therefore, an overvoltage and undervoltage protector with an alarm function is needed to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide an over-voltage and under-voltage protector with an alarm function to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an over-voltage and under-voltage protector with an alarm function, comprising a protector body, an alarm light is provided on the front of the protector body, a voltage value detection connection line and a normal voltage detection connection line are provided in the alarm light, connecting blocks are fixedly connected to the top and bottom of the protector body, bearings are clamped in the two connecting blocks, the same threaded rod is rotatably connected in the two bearings, the threads on both sides of the threaded rod are arranged oppositely, the threaded rod is externally threadedly connected to two threaded sleeves, and the two threaded sleeves are externally fixedly connected to clamping blocks.

[0005] As a preferred embodiment, a handle is fixedly connected to the top end of the threaded rod, and the front sides of the two clamping blocks are fixedly connected to limit rods.

[0006] As a preferred implementation, a slide groove is provided on the back side of the protector body, and the two limit rods are both located in the slide groove.

[0007] As a preferred implementation manner, a fixing block is fixedly connected to the bottom of the protector body, and a gear is fixedly connected to the outside of the threaded rod.

[0008] As a preferred embodiment, a rack is meshed outside the gear, and a wire harness screening block is fixedly connected to the back side of the rack.

[0009] As a preferred embodiment, a telescopic rod is fixedly connected to the front side of the rack, and the other end of the telescopic rod is fixedly connected to the back side of the fixed block.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model is provided with a voltage value detection connection line, a normal voltage detection connection line, an alarm light, a threaded rod, a threaded sleeve and a clamping block. The protector body can detect the voltage by using the voltage value detection connection line and the normal voltage detection connection line, so that the voltage results detected by the voltage value detection connection line and the normal voltage detection connection line can be transmitted to the alarm light for corresponding prompting work. At the same time, when the threaded rod rotates, the two threaded sleeves that cooperate with the threaded rod can respectively drive the clamping blocks to approach each other, so that the two clamping blocks can be adjusted accordingly according to the size of the guide rail, so as to achieve the purpose that the protector body can be smoothly installed in the guide rail. Then, this device enables the alarm light to give corresponding prompts according to the voltage results when the protector body is in the recovery state and the alarm state, so as to prevent the staff from being unable to distinguish the power-on state and thus making it difficult to perform maintenance. At the same time, this device enables the protector body to abandon the traditional installation between the claws in the card slot and the guide rail, so as to avoid the card slot with a fixed spacing being difficult to fit the guide rails of different sizes, thereby meeting various installation requirements between the protector body and different guide rails.

[0012] The utility model is provided with gears, racks and a wire harness screening block. When the threaded rod drives the gear to rotate synchronously, the rack meshing with the gear can smoothly drive the wire harness screening block to move backward, so that the wire harness screening block can move backward to screen multiple wire harnesses in the protector body, making it convenient for subsequent staff to carry out the maintenance process of the protector body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the protector body of the utility model in a three-dimensional rear view;

[0015] Figure 3 It is a three-dimensional structural diagram of the threaded rod of the utility model;

[0016] In the figure: 1. Protector body; 2. Warning light; 3. Voltage value detection connecting wire; 4. Normal voltage detection connecting wire; 5. Connecting block; 6. Bearing; 7. Threaded rod; 8. Threaded sleeve; 9. Block; 10. Turning handle; 11. Limit rod; 12. Slide; 13. Fixed block; 14. Gear; 15. Rack; 16. Wire harness screening block; 17. Telescopic rod. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with embodiments.

[0018] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0019] See also Figure 1-3 The utility model provides an over-undervoltage protector with an alarm function, comprising a protector body 1, a slide groove 12 is provided on the back of the protector body 1, two limit rods 11 are both located in the slide groove 12, and the slide groove 12 allows the limit rods 11 to have a moving space, so that the threaded sleeve 8 can move smoothly when the limit rod 11 is rotated by the threaded rod 7 in the slide groove 12, and at the same time has good stability to prevent the threaded sleeve 8 from accidentally rotating when driving the clamping block 9 to move;

[0020] A fixing block 13 is fixedly connected to the lower part of the protector body 1, a gear 14 is fixedly connected to the outside of the threaded rod 7, a rack 15 is meshed with the outside of the gear 14, and a wire harness screening block 16 is fixedly connected to the back of the rack 15. When the threaded rod 7 rotates, the gear 14 can be driven to rotate synchronously, so that the rack 15 meshed with it can drive the wire harness screening block 16 to move backward smoothly, so that the wire harness screening block 16 can move backward to screen the connecting wires connected to the protector body 1, thereby improving the convenience of the staff to perform subsequent maintenance on the protector body 1;

[0021] The front of the rack 15 is fixedly connected with a telescopic rod 17, and the other end of the telescopic rod 17 is fixedly connected to the back of the fixed block 13. The telescopic rod 17 provides the rack 15 with a fixed point, and the telescopic characteristics of the telescopic rod 17 are used to allow the rack 15 to move smoothly, thereby preventing the rack 15 from being suspended in the air and unable to mesh with the gear 14 to move normally;

[0022] The front of the protector body 1 is provided with an alarm light 2, which can light up accordingly according to the voltage information detected by the voltage value detection connection line 3 and the voltage normal detection connection line 4;

[0023] The alarm light 2 is provided with a voltage value detection connection line 3 and a voltage normal detection connection line 4, and the voltage value detection connection line 3 can detect the voltage value. When the voltage is too low or too high, the alarm light 2 is always on. At the same time, the voltage normal detection connection line 4 can detect whether the voltage is normal or abnormal. When the voltage is normal, the alarm light 2 is in a flashing state, and the countdown is on to restore the power system.

[0024] The upper and lower parts of the protector body 1 are fixedly connected with connecting blocks 5, and bearings 6 are clamped in the two connecting blocks 5. The same threaded rod 7 is rotatably connected in the two bearings 6. The top of the threaded rod 7 is fixedly connected with a turning handle 10, and the front parts of the two clamping blocks 9 are fixedly connected with a limiting rod 11. The turning handle 10 enables the threaded rod 7 to have a force point for rotation, which is convenient for the staff to rotate it. At the same time, when the limiting rod 11 is in the slide groove 12, the threaded sleeve 8 can be moved up and down smoothly and stably.

[0025] The threads on both sides of the threaded rod 7 are set to be opposite, and the external thread of the threaded rod 7 is connected to two threaded sleeves 8, and the two threaded sleeves 8 are fixedly connected to the outside with a clamping block 9. When the threaded rod 7 rotates, the two threaded sleeves 8 that are threaded with it can use the opposite threads on both sides to drive the clamping blocks 9 to approach each other, so that the two clamping blocks 9 can be adjusted according to the size of the guide rail. The spacing ensures that the two clamping blocks 9 can be fixed on the guide rail to realize the installation operation of the protector body 1.

[0026] The working principle and use process of this utility model:

[0027] When the protector body 1 needs to be installed according to the size of the guide rail, the handle 10 is first rotated so that the handle 10 drives the threaded rod 7 to rotate. When the threaded rod 7 rotates, the two threaded sleeves 8 threadedly matched with it can move in the slide groove 12 through the limit rod 11, and the opposite threads on both sides of the threaded rod 7 can be used to smoothly approach each other, so that the two threaded sleeves 8 respectively drive the clamping blocks 9 to approach each other, and when the two clamping blocks 9 are close to each other to a suitable position according to the size of the guide rail, they can be fixed on the guide rail, so as to achieve the purpose of installing the protector body 1;

[0028] At the same time, the protector body 1 can detect the voltage value using the voltage value detection connection line 3 and the voltage normal detection connection line 4. The voltage information detected by the voltage value detection connection line 3 and the voltage normal detection connection line 4 can be transmitted to the alarm light 2 for corresponding alarm prompts.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An overvoltage and undervoltage protector with an alarm function, comprising a protector body (1), characterized in that: The front of the protector body (1) is provided with an alarm light (2), and a voltage value detection connection line (3) and a normal voltage detection connection line (4) are provided in the alarm light (2). The upper and lower parts of the protector body (1) are fixedly connected with connection blocks (5), and bearings (6) are clamped in the two connection blocks (5). The same threaded rod (7) is rotatably connected in the two bearings (6), and the threads on both sides of the threaded rod (7) are arranged to be opposite. The threaded rod (7) is externally threadedly connected with two threaded sleeves (8), and the two threaded sleeves (8) are externally fixedly connected with clamping blocks (9).

2. The over-voltage and under-voltage protector with alarm function according to claim 1, characterized in that: A handle (10) is fixedly connected to the top end of the threaded rod (7), and the front ends of the two clamping blocks (9) are fixedly connected to limit rods (11).

3. The over-voltage and under-voltage protector with alarm function according to claim 2, characterized in that: A slide groove (12) is provided on the back of the protector body (1), and the two limit rods (11) are both located in the slide groove (12).

4. The over-voltage and under-voltage protector with alarm function according to claim 1, characterized in that: A fixing block (13) is fixedly connected to the bottom of the protector body (1), and a gear (14) is fixedly connected to the outside of the threaded rod (7).

5. The over-voltage and under-voltage protector with alarm function according to claim 4, characterized in that: The gear (14) is meshed with a rack (15) on the outside, and a wire harness screening block (16) is fixedly connected to the back of the rack (15).

6. The over-voltage and under-voltage protector with alarm function according to claim 5, characterized in that: A telescopic rod (17) is fixedly connected to the front side of the rack (15), and the other end of the telescopic rod (17) is fixedly connected to the back side of the fixed block (13).

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