A protective device for power transformers

Abstract

The utility model provides a kind of protective equipment for power transformer, including the pair of mounting frame that is symmetrically arranged on power transformer, the pair of protective device and the pair of timing driving device that is symmetrically arranged on ground, the pair of protective device all includes mounting plate, several movable driving board and connecting plate group.

Description

Technical Field

[0001] This utility model relates to the field of power transformer technology, and in particular to a protective device for power transformers. Background Technology

[0002] An electric transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, the secondary coil, and the iron core. It is mainly used for voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization.

[0003] Existing transformers are directly installed outdoors. During routine maintenance, it is often found that birds nest on the transformers, which poses a serious safety hazard and can easily cause fires. Due to the lack of protective devices, even if maintenance personnel clean the nests in time, the birds will continue to nest on them. Some transformers with protective devices have complex structures that may affect the transformer's performance and heat dissipation. This leaves the transformer with a persistent safety hazard. Therefore, it is urgent to design a protective device for transformers to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of the aforementioned technologies, this utility model provides a protective device for power transformers, comprising a pair of mounting frames symmetrically arranged on the power transformer, a pair of protective devices, and a pair of timing drive devices symmetrically arranged on the ground. The pair of protective devices are respectively connected to and movably engaged with the pair of mounting frames. The pair of mounting frames are located at the two side edges of the top of the power transformer. Each pair of protective devices includes a mounting plate, several movable drive plates, and a connecting plate assembly. The mounting plate is connected to the mounting frame and rotatably engaged. Both ends of the mounting plate are fixedly connected to several movable drive plates and the connecting plate assembly, respectively. Several auxiliary drive plates are provided between the several movable drive plates. A passage notch is formed between adjacent movable drive plates for the passage of connecting parts at the top of the power transformer. The connecting plate assembly is connected to and movably engaged with the timing drive device.

[0005] By adopting the above technical solution, a protective device including an installation plate, several movable deflector plates, and a connecting plate group is installed on the top of the power transformer. The movable deflector plates are driven to rotate at short intervals by a timed drive device. This can drive away birds in time when they start to build nests. By setting auxiliary deflector plates and using gaps to ensure effective deflection, the normal connection on the top of the power transformer is not affected. The entire process is automatic deflection without affecting the normal use and heat dissipation function of the power transformer.

[0006] Further features of this invention: The connecting plate assembly includes a connecting horizontal plate and a pair of connecting vertical plates; the timing drive device includes a power supply, a timing trigger switch, a drive cylinder, a push rod, and a movable connecting block; the timing trigger switch is connected to the power supply and the drive cylinder respectively via a circuit; the push rod is connected to the piston rod of the drive cylinder; and the two ends of the movable connecting block are movably connected to the push rod and the connecting horizontal plate respectively.

[0007] Using the above technical solution, since the connecting plate assembly includes a connecting horizontal plate and a pair of connecting vertical plates, and the timing drive device includes a power supply, a timing trigger switch, a drive cylinder, a push rod, and a movable connecting block, the timing trigger switch is connected to the power supply and the drive cylinder respectively through a circuit, the push rod is connected to the piston rod of the drive cylinder, and the two ends of the movable connecting block are movably connected to the push rod and the connecting horizontal plate respectively. By controlling the drive cylinder to start and stop at regular intervals through the timing trigger switch, the push rod is moved, which pushes the connecting plate assembly to move and drive the mounting plate to rotate around the mounting frame, finally realizing the small up and down rotation of the driving plate to drive away nesting birds.

[0008] A further feature of this invention is that a protective cover is provided above both the drive cylinder and the push rod to protect the drive cylinder and the push rod body.

[0009] By adopting the above technical solution, since the drive cylinder and push rod are both covered with protective shells to protect the drive cylinder and push rod bodies, the drive cylinder and push rod can be protected and prevented from being stepped on, thus affecting their service life.

[0010] A further feature of this invention is that several interconnected drainage grooves are formed on the top surfaces of the movable driving plates and the mounting plate.

[0011] By adopting the above technical solution, since several interconnected drainage grooves are opened on the top surfaces of the movable driving plates and the mounting plate, the top of the transformer can be protected from rain to a certain extent, and the water accumulated on the movable driving plates can be quickly drained after rain. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of the structure of a protective device for a power transformer according to a specific embodiment of the present utility model.

[0013] Appendix Figure 2 This is a partial explosion structure diagram of a protective device for a power transformer according to a specific embodiment of the present invention.

[0014] Appendix Figure 3 This is a partial explosion structure diagram of a protective device for a power transformer according to a specific embodiment of the present invention.

[0015] 1-Mounting bracket, 2-Protective device, 3-Timed drive device, 4-Mounting plate, 5-Movable driving plate, 6-Connecting plate assembly, 7-Auxiliary driving plate, 8-Passing notch, 9-Connecting horizontal plate, 10-Connecting vertical plate, 11-Power supply, 12-Timed trigger switch, 13-Drive cylinder, 14-Push rod, 15-Movable connecting block, 16-Protective cover, 17-Drainage trough. Detailed Implementation

[0016] like Figure 1-3 The protective device for a power transformer shown includes a pair of mounting frames 1 symmetrically arranged on the power transformer, a pair of protective devices 2, and a pair of timing drive devices 3 symmetrically arranged on the ground. The pair of protective devices are respectively connected to the pair of mounting frames and are movably engaged. The pair of mounting frames are both located at the two sides of the top of the power transformer. Each pair of protective devices includes a mounting plate 4, several movable drive plates 5, and a connecting plate group 6. The mounting plate is connected to the mounting frame and is rotatably engaged. Both ends of the mounting plate are fixedly connected to several movable drive plates and the connecting plate group, respectively. Several auxiliary drive plates 7 are provided between the several movable drive plates. A passage notch 8 is formed between adjacent movable drive plates for the passage of the top connector of the power transformer. The connecting plate group is connected to the timing drive device and is movably engaged.

[0017] By installing a protective device on the top of the power transformer, including a mounting plate, several movable deterrent plates, and a connecting plate assembly, and by using a timed drive device to rotate several movable drive plates at short intervals, birds can be deterred in time when they begin to build nests. By setting auxiliary deterrent plates and using gaps to ensure effective deterrence, the normal connection on the top of the power transformer is not affected. The entire process achieves automatic deterrence without affecting the normal use and heat dissipation function of the power transformer.

[0018] The connecting plate assembly includes a connecting horizontal plate 9 and a pair of connecting vertical plates 10. The timing drive device includes a power supply 11, a timing trigger switch 12, a drive cylinder 13, a push rod 14, and a movable connecting block 15. The timing trigger switch is connected to the power supply and the drive cylinder respectively through a circuit. The push rod is connected to the piston rod of the drive cylinder. The two ends of the movable connecting block are movably connected to the push rod and the connecting horizontal plate respectively.

[0019] Since the connecting plate assembly includes a connecting horizontal plate and a pair of connecting vertical plates, the timing drive device includes a power supply, a timing trigger switch, a drive cylinder, a push rod, and a movable connecting block. The timing trigger switch is connected to the power supply and the drive cylinder through a circuit. The push rod is connected to the piston rod of the drive cylinder. The two ends of the movable connecting block are movably connected to the push rod and the connecting horizontal plate, respectively. The timing trigger switch controls the drive cylinder to start and stop at regular intervals, which drives the push rod to move, pushes the connecting plate assembly to move, and drives the mounting plate to rotate around the mounting frame. Finally, the driving plate rotates up and down slightly to drive away nesting birds.

[0020] The drive cylinder and push rod are both covered with protective shells 16 for protecting the drive cylinder and push rod bodies.

[0021] Since the drive cylinder and push rod are both covered with protective shells to protect the drive cylinder and push rod bodies, the drive cylinder and push rod can be protected from being stepped on and affecting their service life.

[0022] Several interconnected drainage channels 17 are opened on the top surface of the several movable driving plates and the mounting plate.

[0023] Since the top surfaces of the movable driving plates and the mounting plates are all connected with several drainage grooves, they can provide some protection against rain for the top of the transformer, and can also quickly drain the water accumulated on the movable driving plates after rain.

Claims

1. A protective device for a power transformer, comprising a pair of mounting frames symmetrically arranged on the power transformer, a pair of protective devices, and a pair of timing drive devices symmetrically arranged on the ground, wherein the pair of protective devices are respectively connected to and movably cooperate with the pair of mounting frames, characterized in that: The pair of mounting brackets are both located at the two sides of the top of the power transformer. The pair of protective devices each include a mounting plate, several movable driving plates, and a connecting plate assembly. The mounting plate is connected to the mounting bracket and rotates with it. Both ends of the mounting plate are fixedly connected to several movable driving plates and the connecting plate assembly, respectively. Several auxiliary driving plates are provided between the several movable driving plates. A passage notch is formed between adjacent movable driving plates to allow the top connector of the power transformer to pass through. The connecting plate assembly is connected to the timing drive device and rotates with it.

2. The protective device for a power transformer according to claim 1, characterized in that: The connecting plate assembly includes a connecting horizontal plate and a pair of connecting vertical plates. The timing drive device includes a power supply, a timing trigger switch, a drive cylinder, a push rod, and a movable connecting block. The timing trigger switch is connected to the power supply and the drive cylinder respectively through a circuit. The push rod is connected to the piston rod of the drive cylinder. The two ends of the movable connecting block are movably connected to the push rod and the connecting horizontal plate respectively.

3. A protective device for a power transformer according to claim 2, characterized in that: The drive cylinder and push rod are both covered with protective shells to protect the drive cylinder and push rod bodies.

4. A protective device for a power transformer according to claim 1, characterized in that: Several interconnected drainage channels are opened on the top surface of the various movable driving plates and the mounting plate.

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