Transformer and early warning device thereof

Abstract

The utility model relates to a transformer and an early warning device thereof, the transformer is provided with a protective shell, and the early warning device comprises a fixed seat; the transmission assembly comprises a movable rod and a transmission structure, and the movable rod is movably installed on the fixing base and used for abutting against the protective shell; the knocking assembly comprises a knocking piece, and the knocking piece is rotationally installed on the fixed seat and is in transmission connection with the movable rod through the transmission structure; and the sound production assembly comprises a sound production part, the sound production part is installed on the fixed seat, and the movable rod drives the knocking part to swing so as to knock the sound production part to make a sound. Through the technical scheme, the early warning device of the transformer provided by the utility model is convenient for judging whether the transformer has an abnormal vibration condition or not.

Description

Technical Field

[0001] The present disclosure relates to the technical field of transformers, and in particular, to a transformer and an early warning device thereof. Background Art

[0002] Transformers may malfunction during use, for example, aging of the internal insulation material of the transformer, loose or broken windings, loose core connections, breakdown or discharge between internal components of the transformer, electrical overload, short circuit, grounding fault, etc. These faults are often accompanied by abnormal vibration of the transformer. Therefore, maintenance personnel usually observe the vibration of the transformer to make a preliminary judgment on whether the transformer has a fault. However, since some transformers are installed in the wild or at high places, and due to the limitations of manual observation, it is not easy to judge whether the transformer has abnormal vibration. Utility Model Content

[0003] The purpose of the present disclosure is to provide a transformer and an early warning device thereof, which are convenient for judging whether the transformer has abnormal vibration.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides an early warning device for a transformer, wherein the transformer has a protective shell, and the early warning device comprises: a fixed seat; a transmission component, wherein the transmission component comprises a movable rod and a transmission structure, wherein the movable rod is movably mounted on the fixed seat and is used to interfere with the protective shell; a knocking component, wherein the knocking component comprises a knocking piece, wherein the knocking piece is rotatably mounted on the fixed seat and is transmission-connected to the movable rod through the transmission structure; and a sounding component, wherein the sounding component comprises a sounding piece, wherein the sounding piece is mounted on the fixed seat, and the movable rod drives the knocking piece to swing, so as to knock the sounding piece to produce a sound.

[0005] Optionally, the fixed seat is provided with a slide groove, the movable rod is slidably installed in the slide groove, the transmission structure includes a gear and a rack that mesh with each other, the rack is formed on the movable rod, and the knocking member is fixedly connected to the gear.

[0006] Optionally, the transmission structure further includes an elastic reset member, which is disposed in the slide groove and is used to provide an elastic force to the movable rod to move toward the protective shell along an extension direction of the slide groove.

[0007] Optionally, the slide groove includes a first guide groove and a second guide groove, the first guide groove and the second guide groove are parallel and connected to each other, the movable rod is slidably arranged in the first guide groove, the movable rod is connected to a limiting block, the limiting block and the elastic return member are located in the second guide groove, one end of the elastic return member is fixedly connected to the limiting block, and the other end is fixedly connected to the groove wall of the second guide groove.

[0008] Optionally, the early warning device also includes an adjustment component and a connecting seat, the fixed seat is formed with an installation cavity and an opening groove, one end of the knocking piece is located in the installation cavity, and the other end extends out of the installation cavity through the opening groove, the connecting seat is fixed to the fixed seat, and the sound-emitting piece is movably installed on the connecting seat through the adjustment component for adjusting the distance between the sound-emitting piece and the knocking piece.

[0009] Optionally, the connecting seat is provided with an arc groove, and the adjustment assembly includes a connecting piece, an adjusting knob and a connecting rod, the connecting piece is slidably arranged in the arc groove and connected to the sound-emitting piece, the adjusting knob is threadedly connected to the fixed seat, one end of the connecting rod is connected to the adjusting knob, and the other end is connected to the sound-emitting piece.

[0010] Optionally, there are two connecting seats, the open groove is arranged between the two connecting seats, the connecting piece includes a sliding rod segment and two clamping rings, the sliding rod segment is inserted into the arc grooves of the two connecting seats, the two clamping rings are respectively connected to the two ends of the sliding rod segment, and the sounding piece is inserted into the two clamping rings.

[0011] Optionally, the connecting rod includes a rod body and a connecting ring, one end of the rod body is connected to the adjusting knob, and the other end is connected to the connecting ring, and the sound-emitting member is inserted into the connecting ring and has an interference fit with the connecting ring.

[0012] Optionally, the early warning device also includes a light-emitting element and a power supply, the light-emitting element and the sound-emitting component are electrically connected to the power supply, and the light-emitting element is electrically connected to the knocking component, when the knocking component knocks the sound-emitting component, the circuit composed of the power supply, the light-emitting element, the knocking component and the sound-emitting component is connected, so that the light-emitting element emits light.

[0013] Optionally, the early warning device has a protective component, which includes a base and a rain shield, the fixing base and the rain shield are both fixedly connected to the base, the rain shield is arranged on the top of the transformer, and the rain shield is used to cover the transformer and the base.

[0014] Optionally, the base is a shock-absorbing base.

[0015] On the basis of the above solution, the present disclosure further provides a transformer, including a protective shell and the above-mentioned early warning device, wherein the early warning device is arranged on the protective shell.

[0016] Through the above technical scheme, in the early warning device of the transformer provided by the present invention, a transmission component, a knocking component and a sounding component are arranged, the transmission component includes a movable rod and a transmission structure, the knocking component includes a knocking piece, and the sounding component includes a sounding piece, and the knocking piece is connected to the movable rod through the transmission structure. When the protective shell vibrates abnormally due to a transformer failure, the protective shell will drive the movable rod to move, and the movement of the movable rod will drive the knocking piece to move. When the knocking piece moves, it will knock the sounding piece to make a sound, thereby playing a warning role, so that maintenance personnel can judge whether the transformer has a fault and perform maintenance in time. In addition, it can also remind nearby pedestrians to pay attention to safety.

[0017] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0019] Figure 1 is a schematic diagram of the installation of the transformer and the early warning device according to the embodiment of the present disclosure;

[0020] Figure 2 is a cross-sectional view of the early warning device according to an embodiment of the present disclosure;

[0021] Figure 3 is a schematic diagram of the three-dimensional structure of the early warning device according to an embodiment of the present disclosure;

[0022] Figure 4 It is another three-dimensional structural schematic diagram of the early warning device described in the embodiment of the present disclosure.

[0023] Description of Reference Numerals

[0024] 10-transformer; 101-protective shell; 2-early warning device; 201-installation cavity; 202-opening slot; 21-fixed seat; 211-first guide slot; 212-second guide slot; 22-transmission assembly; 221-movable rod; 222-receiving block; 223-transmission structure; 2231-rack; 2232-gear; 2233-elastic reset member; 224-limiting block; 23-knocking assembly; 231-knocking member; 2 32-connecting part; 233-striking part; 24-sound-generating component; 241-sound-generating part; 25-light-emitting element; 26-power supply; 27-adjusting component; 271-connecting part; 2711-sliding rod section; 2712-hooking ring; 272-adjusting knob; 273-connecting rod; 2731-rod body; 2732-connecting ring; 28-connecting seat; 281-arc groove; 3-protective component; 31-base; 32-rain shield. DETAILED DESCRIPTION

[0025] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0026] In the present disclosure, unless otherwise specified, the directional words used, such as "inside" and "outside", are "inside" and "outside" relative to the corresponding component's own outline. In addition, the terms "first", "second", etc. used in the present disclosure are to distinguish one element from another and do not have order and importance. In the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be understood as limitations on the present disclosure.

[0027] According to an exemplary embodiment of the present disclosure, referring to Figures 1 to 4 As shown, an early warning device for a transformer is provided, the early warning device 2 includes: a fixed seat 21, a transmission component 22, a knocking component 23 and a sounding component 24, the transmission component 22 includes a movable rod 221 and a transmission structure 223, the transformer 10 has a protective shell 101, the movable rod 221 is movably mounted on the fixed seat 21 and is used to conflict with the protective shell 101; the knocking component 23 includes a knocking piece 231, the knocking piece 231 is rotatably mounted on the fixed seat 21 and is transmission-connected to the movable rod 221 through the transmission structure 223; the sounding component 24 includes a sounding piece 241, the sounding piece 241 is mounted on the fixed seat 21, and the movable rod 221 drives the knocking piece 231 to swing, so as to knock the sounding piece 241 to make a sound.

[0028] Through the above technical scheme, in the early warning device of the transformer provided by the present disclosure, a transmission component 22, a knocking component 23 and a sounding component 24 are set, the transmission component includes a movable rod 221 and a transmission structure 223, the knocking component 23 includes a knocking piece 231, and the sounding component 24 includes a sounding piece 241. The knocking piece 231 is connected to the movable rod 221 through the transmission structure 223. When the protective shell 101 vibrates abnormally due to the failure of the transformer 10, the protective shell 101 will drive the movable rod 221 to move, and the movement of the movable rod 221 will drive the knocking piece 231 to move. When the knocking piece 231 moves, it will knock the sounding piece 241 to make a sound, thereby playing a warning role, so that maintenance personnel can judge whether the transformer 10 has a fault and perform maintenance in time. In addition, it can also remind nearby pedestrians to pay attention to safety.

[0029] In the specific embodiments provided in the present disclosure, reference is made to Figure 2As shown in , the fixed seat 21 may be provided with a slide groove, the movable rod 221 is slidably mounted on the slide groove, the transmission structure 223 may include a gear 2232 and a rack 2231 that mesh with each other, the rack 2231 is formed on the movable rod 221, and the knocking member 231 is fixedly connected to the gear 2232. By such an arrangement, when the transformer 10 vibrates and drives the movable rod 221 to move, the gear 2232 is driven to rotate by the rack 2231, and the rotation of the gear 2232 drives the knocking member 231 to move, so that the knocking member 231 knocks the sounding member 241 to make a sound. Among them, by setting the slide groove, the movement trajectory of the movable rod 221 can be guided and constrained to prevent the movement trajectory of the movable rod 221 from deviating.

[0030] In the above technical solution, it can also be realized by a connecting rod transmission structure, that is, the movable rod 221 and the knocking member 231 constitute a connecting rod mechanism, and other structures that can achieve the same purpose of the present disclosure can also be used, and the present disclosure does not limit this.

[0031] In the specific implementation provided by the present disclosure, the movable rod 221 may directly interfere with the protective shell 101 . In this case, in order to ensure the stability of vibration transmission, the end of the movable rod 221 may be constructed as a plane, which is used to fit with the surface of the protective shell 101 .

[0032] In other embodiments, reference Figure 2 As shown in , the transmission component 22 may further include a receiving block 222, which is disposed at one end of the movable rod 221, and the receiving block 222 contacts the protective shell 101. The cross-sectional area of ​​the receiving block 222 may be larger than the cross-sectional area of ​​the movable rod 221, thereby increasing the contact area with the protective shell 101 and ensuring the stability of vibration transmission. In the above technical solution, the receiving block 222 may be constructed as a cylindrical block, a rectangular block or a block of other shapes with a plane contact surface, which is not limited in the present disclosure.

[0033] In the specific embodiments provided in the present disclosure, reference is made to Figure 2As shown in , the transmission structure 223 may also include an elastic reset member 2233, which is arranged in the slide slot and is used to provide an elastic force to the movable rod 221 to move toward the protective shell 101 along the extension direction of the slide slot. In the present disclosure, the elastic reset member 2233 is elastic. When the movable rod 221 drives the knocking member 231 to swing due to the vibration to knock the sounding member 241, the movable rod 221 is reset under the elastic force of the elastic reset member 2233, that is, the movable rod 221 moves toward the protective shell 101, and drives the receiving block 222 to move, so that the receiving block 222 fits with the protective shell 101. At this time, since the vibration is still continuing, the receiving block 222 moves under the action of the vibration, and drives the movable rod 221 to move again, so that the movable rod 221 drives the knocking member 231 to knock the sounding member 241 again to make a sound, and the knocking action is repeated in this way to play a warning role.

[0034] In the specific embodiments provided in the present disclosure, reference is made to Figure 2 As shown in the figure, the slide groove may include a first guide groove 211 and a second guide groove 212, the first guide groove 211 and the second guide groove 212 are parallel and connected to each other, the movable rod 221 is slidably arranged in the first guide groove 211, the movable rod 221 is connected to the limiting block 224, the limiting block 224 and the elastic return member 2233 are located in the second guide groove 212, one end of the elastic return member 2233 is fixedly connected to the limiting block 224, and the other end is fixedly connected to the groove wall of the second guide groove 212. In the present disclosure, the first guide groove 211 can be set as a square groove or a T-shaped groove, and the movable rod 221 is adapted to the first guide groove 211, so that the movable rod 221 only has a moving action and does not rotate; by setting the second guide groove 212, the limit block and the elastic reset member 2233 are arranged in the second guide groove 212, so as to avoid the elastic reset member 2233 from applying a positive thrust to the movable rod 221, thereby weakening the supporting force of the receiving block 222 on the protective shell 101, thereby improving the sensitivity and the accuracy of the early warning.

[0035] In the specific embodiments provided in the present disclosure, reference is made to Figure 3As shown in , the early warning device may also include an adjustment component 27 and a connecting seat 28, the fixed seat 21 is formed with a mounting cavity 201 and an opening slot 202, one end of the knocking piece 231 is located in the mounting cavity 201, and the other end extends out of the mounting cavity 201 through the opening slot 202, the connecting seat 28 is fixed to the fixed seat 21, and the sounding piece 241 is movably mounted on the connecting seat 28 through the adjustment component 27, and the adjustment component 27 is used to adjust the distance between the sounding piece 241 and the knocking piece 231. In the above technical solution, the knocking piece 231 may have a connecting portion 232 and a knocking portion 233, one end of the connecting portion 232 is fixedly connected to the gear 2232, and the other end passes through the opening slot 202 and is detachably connected to the knocking portion 233. By such an arrangement, the compactness of the structure is improved and the weight of the device is reduced. Since the adjustment component 27 is provided, the distance between the sounding piece 241 and the knocking piece 231 can be adjusted, so the early warning device is corrected according to the specific installation situation to ensure the accuracy of the warning.

[0036] In the specific embodiments provided in the present disclosure, reference is made to Figure 3 and Figure 4 As shown in the figure, the connecting seat 28 can be provided with an arc groove 281, and the adjusting assembly 27 can include a connecting piece 271, an adjusting knob 272 and a connecting rod 273. The connecting piece 271 is slidably set in the arc groove 281 and is connected to the sound-emitting piece 241. The adjusting knob 272 is threadedly connected to the fixed seat 21, and one end of the connecting rod 273 is connected to the adjusting knob 272, and the other end is connected to the sound-emitting piece 241. With such an arrangement, it is only necessary to rotate the adjusting knob 272, and the rotation of the adjusting knob 272 drives the connecting rod 273 to rotate, and the rotation of the connecting rod 273 drives the sounding piece 241 to rotate, thereby realizing the adjustment of the distance between the sounding piece 241 and the knocking piece 231, which is convenient to operate and efficient. Since the arc groove 281 is provided, the connecting piece 271 is slidably provided in the arc groove 281 and is connected to the sounding piece 241. When the connecting rod 273 drives the sounding piece 241 to rotate, the connecting piece 271 slides along the arc groove 281, and the connecting piece 271 supports and guides the sounding piece 241, thereby improving the stability of the sounding piece 241.

[0037] In the specific embodiments provided in the present disclosure, reference is made to Figure 3 and Figure 4 As shown in , the number of the connecting seats 28 can be two, the opening groove 202 is arranged between the two connecting seats 28, the connecting member 271 can include a slide bar section 2711 and two hoop rings 2712, the slide bar section 2711 is inserted into the arc groove 281 of the two connecting seats 28, the two hoop rings 2712 are respectively connected to the two ends of the slide bar section 2711, and the sounding member 241 is inserted into the two hoop rings 2712. Through such an arrangement, the stability of the sounding member 241 is improved, so that the knocking member 231 can accurately knock the sounding member 241.

[0038] In the specific embodiments provided in the present disclosure, reference is made to Figure 3 As shown in , the connecting rod 273 may include a rod body 2731 and a connecting ring 2732. One end of the rod body 2731 is connected to the adjusting knob 272, and the other end is connected to the connecting ring 2732. The sounding piece 241 is inserted into the connecting ring 2732 and has an interference fit with the connecting ring 2732. By such an arrangement, the reliability of the connection is improved. When the adjusting knob 272 is rotated, the main body 2731 is driven to rotate, the main body 2731 drives the connecting ring 2732 to rotate, and the connecting ring 2732 drives the sounding piece 241 to move, so as to adjust the distance between the sounding piece 241 and the knocking piece 231.

[0039] It should be noted that in order to facilitate the adjustment of the striking position of the sounding member 241 or the replacement of the sounding member 241, the connecting ring 2732 can also be set as a clamp ring. In this way, when the striking position of the sounding member 241 is worn, it is convenient to adjust or replace the sounding member 241.

[0040] In the specific embodiments provided in the present disclosure, reference is made to Figure 4 As shown in , the early warning device 2 may also include a light emitting element 25 and a power source 26. The light emitting element 25 and the sounding member 241 are both electrically connected to the power source 26, and the light emitting element 25 is electrically connected to the striking member 231. When the striking member 231 strikes the sounding member 241, the circuit composed of the power source 26, the light emitting element 25, the striking member 231 and the sounding member 241 is connected to make the light emitting element 25 emit light. In the above technical solution, the striking member 231 is made of metal material, which has both conductive properties and good hardness, so that it can strike the sounding member 241 to make a sound.

[0041] In the specific embodiments provided in the present disclosure, reference is made to Figure 1 As shown in , the early warning device 2 has a protective component 3, which may include a base 31 and a rain shield 32. The fixing base 21 and the rain shield 32 are both fixedly connected to the base 31. The rain shield 32 is arranged on the top of the transformer 10, and the rain shield 32 is used to cover the transformer 10 and the base 31. In the above technical solution, the fixing base 21 is located on one side of the transformer 10, and the rain shield 32 extends to cover the transformer 10 and the base 31. In rainy days, the transformer 10 and the early warning device 2 are shielded from rain by the rain shield 32 to prevent rain from damaging the transformer 10 and the early warning device 2.

[0042] In order to absorb the vibration transmitted from the mounting base of the transformer 10 , the base 31 may be set as a shock-absorbing base, which may be a wooden base or an elastic rubber base, to prevent external vibration of the transformer 10 from interfering with the normal operation of the early warning device 2 .

[0043] Based on the above technical solution, Figures 1 to 4 As shown, the present disclosure further provides a transformer, including a protective shell 101 and the above-mentioned warning device 2, and the warning device 2 is arranged on the protective shell 101. The transformer 10 provided by the present disclosure also has the above-mentioned characteristics, and in order to avoid repetition, it will not be repeated here.

[0044] refer to Figures 1 to 4 As shown, the specific implementation principle of the embodiment of the present disclosure is: first, the early warning device 2 is installed on the transformer 10 to be monitored, that is, the base 31 of the protective component 3 is fixedly connected to the transformer 10, so that the receiving block 222 is in contact with the outer surface of the protective shell 101 of the transformer 10, and then, the spacing between the sounding piece 241 and the knocking piece 231 is adjusted by the adjustment component 27 (refer to the above-mentioned operation steps for details), so that the gap between the sounding piece 241 and the knocking piece 231 is appropriate. When the transformer 10 causes abnormal vibration due to a fault, the receiving block 222 is moved by the thrust, driving the movable rod 221 to move, and the movable rod 221 drives the knocking piece 231 to swing and knock on the sounding piece 241, and the sounding piece 241 makes a sound. Since the movable rod 221 is subjected to the elastic force of the elastic reset piece 2233, the movable rod 22 1 will reset and drive the receiving block 222 to move, so that the receiving block 222 and the protective shell 101 are tightly fitted. At this time, since the vibration is still continuing, the receiving block 222 will be pushed again, and drive the movable rod 221 to move again, so that the movable rod 221 drives the knocking piece 231 to knock the sounding piece 241 again to make a sound, and the knocking action is repeated in this way to play a warning role; in addition, when the knocking piece 231 knocks the sounding piece 241, the knocking piece 231 contacts the sounding piece 241, and the circuit composed of the power supply 26, the light-emitting element 25, the knocking piece 231 and the sounding piece 241 is connected, triggering the light-emitting element 25 to emit light, and since the knocking piece 231 intermittently knocks the sounding piece 241, the circuit will be intermittently connected, so that the light-emitting element 25 flashes, which plays a warning role and improves the warning effect.

[0045] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0046] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0047] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An early warning device for a transformer, the transformer having a protective shell, characterized in that: The early warning device comprises: Fixed seat; A transmission assembly, the transmission assembly comprising a movable rod and a transmission structure, the movable rod being movably mounted on the fixing seat and being used to interfere with the protective shell; A knocking assembly, the knocking assembly comprising a knocking member, the knocking member is rotatably mounted on the fixing seat and is transmission-connected to the movable rod through the transmission structure; and The sound-generating component includes a sound-generating piece, and the sound-generating piece is installed on the fixing seat. The movable rod drives the knocking piece to swing so as to knock the sound-generating piece to produce sound.

2. The transformer early warning device according to claim 1, characterized in that: The fixing seat is provided with a slide groove, the movable rod is slidably installed in the slide groove, the transmission structure includes a gear and a rack meshing with each other, the rack is formed on the movable rod, and the knocking member is fixedly connected to the gear.

3. The transformer early warning device according to claim 2, characterized in that: The transmission structure further includes an elastic reset member, which is disposed in the slide slot and is used to provide an elastic force for the movable rod to move toward the protective shell along an extending direction of the slide slot.

4. The transformer early warning device according to claim 3, characterized in that: The slide groove includes a first guide groove and a second guide groove, the first guide groove and the second guide groove are parallel and connected to each other, the movable rod is slidably arranged in the first guide groove, the movable rod is connected to a limiting block, the limiting block and the elastic return member are located in the second guide groove, one end of the elastic return member is fixedly connected to the limiting block, and the other end is fixedly connected to the groove wall of the second guide groove.

5. The transformer early warning device according to any one of claims 1 to 4, characterized in that: The early warning device also includes an adjusting component and a connecting seat, the fixing seat is formed with an installation cavity and an opening groove, one end of the knocking piece is located in the installation cavity, and the other end extends out of the installation cavity through the opening groove, the connecting seat is fixed to the fixing seat, and the sounding piece is movably installed on the connecting seat through the adjusting component, and the adjusting component is used to adjust the distance between the sounding piece and the knocking piece.

6. The transformer early warning device according to claim 5, characterized in that: The connecting seat is provided with an arc groove, and the adjusting assembly includes a connecting piece, an adjusting knob and a connecting rod. The connecting piece is slidably arranged in the arc groove and connected to the sound-emitting piece. The adjusting knob is threadedly connected to the fixing seat. One end of the connecting rod is connected to the adjusting knob, and the other end is connected to the sound-emitting piece.

7. The transformer early warning device according to claim 6, characterized in that: There are two connecting seats, the open groove is arranged between the two connecting seats, the connecting piece includes a sliding rod segment and two clamping rings, the sliding rod segment is inserted in the arc grooves of the two connecting seats, the two clamping rings are respectively connected to the two ends of the sliding rod segment, and the sounding piece is inserted in the two clamping rings.

8. The transformer early warning device according to claim 7, characterized in that: The connecting rod comprises a rod body and a connecting ring, one end of the rod body is connected to the adjusting knob, and the other end is connected to the connecting ring, and the sound-generating member is inserted into the connecting ring and has an interference fit with the connecting ring.

9. The transformer early warning device according to claim 1, characterized in that: The early warning device also includes a light-emitting element and a power supply, wherein the light-emitting element and the sound-emitting component are both electrically connected to the power supply, and the light-emitting element is electrically connected to the striking component. When the striking component strikes the sound-emitting component, the circuit composed of the power supply, the light-emitting element, the striking component and the sound-emitting component is connected to make the light-emitting element emit light.

10. The transformer early warning device according to claim 1, characterized in that: The early warning device has a protective component, which includes a base and a rain shield. The fixing base and the rain shield are both fixedly connected to the base. The rain shield is arranged on the top of the transformer, and the rain shield is used to cover the transformer and the base.

11. The transformer early warning device according to claim 10, characterized in that: The base is a shock-absorbing base.

12. A transformer, characterized in that: The invention comprises a protective shell and an early warning device for a transformer according to any one of claims 1 to 11, wherein the early warning device is arranged on the protective shell.

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