Self-adaptive overload protection power fuse

Abstract

The invention discloses a self-adaptive overload protection power fuse, and relates to the technical field of fuses. The device comprises a bottom plate, the upper end face of the bottom plate is fixedly connected with a protection structure, the right end face of the protection structure is provided with a power transmission assembly, the inner cavity of the protection structure is provided with a mounting structure on the left end face of the power transmission assembly, and the left end face of the mounting structure is fixedly connected with a resistor assembly. The left end face of the protection structure is provided with an electricity output structure, the position, located on the right end face of the electricity output structure, of an inner cavity of the protection structure is rotationally connected with a fixing structure, and the left side of the lower end face of the inner cavity of the protection structure is fixedly connected with a limiting structure. And a circuit is connected through a connecting groove in the left side of a connecting disc, so that the resistor tube is automatically rotated and replaced in use, and a mounting structure and a resistor assembly are conveniently assembled, disassembled and replaced by a worker through a fixing structure and a power transmission assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of fuses, and in particular to an adaptive overload protection power fuse. Background Art

[0002] A breaker is an electrical appliance that uses the heat generated by itself to melt the fuse and disconnect the circuit when the current exceeds the specified value. A fuse is a current protector made based on the principle that after the current exceeds the specified value for a period of time, the fuse will melt the fuse with the heat generated by itself, thereby disconnecting the circuit. Fuses are widely used in high and low voltage power distribution systems and control systems as well as electrical equipment. As a short circuit and overcurrent protector, it is one of the most commonly used protection devices.

[0003] After searching, a Chinese invention patent disclosed a rotary power protection fuse with publication number CN112735928B, including a fuse box, a conductive disc fixedly connected to the bottom of the fuse box, and a plurality of equally spaced fuse tubes fixedly connected to the side wall of the conductive disc in the circumferential direction; a fuse wire is arranged in the fuse tube, and the ends of the plurality of fuse tubes are respectively fixedly connected to arc-shaped conductive blocks; an insulating column is fixedly connected to the upper end of the conductive disc, and a first rotating rod is rotatably connected to the upper end of the insulating column, and a second rotating rod is rotatably connected to the upper end of the first rotating rod, and a driving baffle is rotatably connected to the lower end of the first rotating rod and the second rotating rod, respectively, and a heat expansion ball is embedded between the two driving baffles. The fuse can protect the circuit from overload and conduct the circuit again in a short time after the fuse wire is blown, without the need for staff to frequently replace the fuse, thereby improving efficiency.

[0004] The existing fuse has the problem that the fuse tube is replaced by the expansion and contraction of the thermal expansion ball, so the service life of the device is limited. At the same time, since the inner cavity of the device is arranged in an integrated manner, when the fuse tubes are all blown, the entire device needs to be replaced, which increases the production and use costs of the fuse.

[0005] Therefore, the existing adaptive overload protection power fuse cannot meet the needs in actual use, so there is an urgent need for improved technology in the market to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide an adaptive overload protection power fuse, which solves the problems raised in the above-mentioned background technology through its setting.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention discloses an adaptive overload protection power fuse, comprising a base plate, wherein the upper surface of the base plate is fixedly connected with a protective structure, the right end surface of the protective structure is provided with a power transmission component, the inner cavity of the protective structure is located at the left end surface of the power transmission component and is provided with a mounting structure, the left end surface of the mounting structure is fixedly connected with a resistor component, the right side of the lower end surface of the inner cavity of the protective structure is fixedly connected with a rotating structure, the left end surface of the protective structure is provided with a power output structure, the inner cavity of the protective structure is located at the right end surface of the power output structure and is rotationally connected with a fixed structure, and the left side of the lower end surface of the inner cavity of the protective structure is fixedly connected with a limiting structure.

[0008] Preferably, the protective structure includes a placement rack fixedly connected to the upper end surface of the base plate, a protective rack is hinged to the rear of the upper end surface of the placement rack through a hinge, a magnetic block A is fixedly connected to the lower end of the inner cavity of the protective frame, and a magnetic block B is fixedly connected to the lower part of the front end surface of the placement rack, and the magnetic poles of the magnetic block A and the magnetic block B are opposite.

[0009] Preferably, the power transmission component includes a power transmission cable fixedly connected to the middle part of the right end face of the placement rack, a power transmission tube is fixedly connected to the middle part of the right end face of the inner cavity of the placement rack, the left end face of the power transmission cable passes through the placement rack and is electrically connected to the power transmission tube, the left end face of the power transmission tube is rotatably connected to a mounting plate, an electrical pin is fixedly connected to the middle part of the left end face of the mounting plate, the electrical pin passes through the mounting plate and is electrically connected to the power transmission tube, and connection grooves are evenly arranged on the outer surface of the mounting plate.

[0010] Preferably, the mounting structure includes a mounting ring movably clamped on the outer surface of the mounting plate, the outer surface of the mounting ring is evenly threaded with mounting bolts, the mounting bolts pass through the mounting ring, the left end face of the mounting ring is fixedly connected to an adjusting gear, the right end face of the adjusting gear and the electrical pins on the left end face of the mounting plate are engaged with each other, the left end face of the adjusting gear is fixedly connected to a resistor assembly, and the resistor assembly is electrically connected to the electrical pins on the mounting plate through the adjusting gear.

[0011] Preferably, the resistor assembly includes a resistor tube uniformly fixedly connected to the left end face of the adjusting gear, the left end face of the resistor tube is fixedly connected to a connecting disk, the outer surface of the connecting disk is uniformly provided with limiting grooves, the inner cavity side walls of the limiting grooves are fixedly connected with expanded microspheres, a fixing groove is provided in the middle of the left end face of the connecting disk, and connecting grooves are uniformly provided on the outer edge of the left end face of the connecting disk, the connecting grooves are electrically connected to the adjacent tooth belts, and the resistor tube is electrically connected to the electrical pins on the mounting disk through the adjusting gear.

[0012] Preferably, the rotating structure includes a sliding frame fixedly connected to the right side of the lower end surface of the inner cavity of the placement rack, a toothed belt is slidably connected to the inner cavity of the sliding frame, an adjustment plate is fixedly connected to the front of the lower end surface of the toothed belt, an adjustment spring is fixedly connected to the rear end surface of the adjustment plate, the rear end surface of the adjustment spring is fixedly connected to the placement rack, and the upper end surface of the toothed belt is meshed with the adjustment gear.

[0013] Preferably, the power output structure includes a power output cable fixedly connected to the middle part of the left end face of the placement rack, a power output tube fixedly connected to the left end face of the inner cavity of the placement rack, the power output cable passes through the placement rack and is electrically connected to the power output tube, a conductive frame is fixedly connected to the right end face of the power output tube, a spring telescopic rod is fixedly connected to the lower part of the right end face of the conductive frame, the power output tube is electrically connected to the conductive frame, the telescopic inner rod of the spring telescopic rod is electrically connected to the conductive frame, and the spring telescopic rod is electrically connected to the connecting groove on the left end face of the connecting plate in a contact manner.

[0014] Preferably, the fixing structure includes a fixing tube rotatably connected to the middle part of the right end surface of the conductive frame, a fixing spring is fixedly connected to the left end surface of the inner cavity of the fixing tube, a clamping block is fixedly connected to the right end surface of the fixing spring, the clamping block is slidably connected to the inner cavity of the fixing tube, and the right end surface of the fixing tube matches the fixing groove opened in the middle part of the left end surface of the connecting plate.

[0015] Preferably, the limiting structure includes a pad fixedly connected to the middle left side of the lower end of the inner cavity of the placement rack, the upper end surface of the telescopic sleeve is fixedly connected to the telescopic sleeve, the lower end surface of the inner cavity of the telescopic sleeve is fixedly connected to the limiting spring, the upper end surface of the limiting spring is fixedly connected to the telescopic inner rod, the telescopic inner rod is slidably connected to the inner cavity of the telescopic sleeve, and the upper surface of the telescopic inner rod is engaged in the inner cavity of the limiting groove.

[0016] The present invention has the following beneficial effects: 1. The present invention installs and places the power transmission component and the power output structure during use through the protection structure arranged on the bottom plate, and then seals and protects the inner cavity of the placement frame through the protection frame, connects the installation structure during use through the power transmission component on the protection structure, and then communicates the current of the external circuit through the power transmission cable and the power transmission tube, installs and places the resistor component and the installation structure during use through the installation structure on the power transmission component, and then facilitates the rotation of the installation structure and the resistor component through the installation disk, performs fuse protection on the circuit during use through the resistor component on the installation structure, and then connects the circuit through the connection groove on the left side of the connection disk, which plays a role in automatically rotating and replacing the resistor tube during use, and then facilitates personnel to load, unload and replace the installation structure and the resistor component through the fixed structure and the power transmission component.

[0017] 2. The present invention drives the rotation of the installation structure during use through the rotating structure arranged on the protective structure, and then adjusts the sliding direction of the toothed belt through the adjusting spring and the adjusting plate, connects the resistor assembly with the output circuit through the power output structure on the protective structure during use, and then installs and places it through the fixed structure, limits the placement of the resistor assembly during use through the fixed structure on the power output structure, and then calibrates the rotation center of the resistor assembly through the clamping block, and limits the rotation angle of the resistor assembly during use through the limiting structure on the protective structure, thereby realizing automatic replacement and locking of the resistor tube.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention; Figure 2 It is a schematic diagram of the installation structure of the resistor assembly of the present invention; Figure 3 It is a schematic diagram of a half-cut three-dimensional structure of the present invention; Figure 4 It is a schematic diagram of the installation structure of the rotary structure of the present invention; Figure 5 For the present invention Figure 3 Schematic diagram of the enlarged structure of the A area in the middle; Figure 6 It is a schematic diagram of the installation structure of the installation structure and the power transmission structure of the present invention.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1-bottom plate, 2-protection structure, 21-placing rack, 22-protection rack, 3-power transmission component, 31-power transmission cable, 32-power transmission pipe, 33-mounting plate, 34-connecting groove, 4-mounting structure, 41-mounting ring, 42-mounting bolt, 43-adjusting gear, 5-resistance component, 51-resistance tube, 52-connecting plate, 53-limiting groove, 54-expanded microsphere, 6-rotating structure, 61-sliding rack, 62-toothed belt, 63-adjusting plate, 64-adjusting spring, 7-fixing structure, 71-fixing pipe, 72-fixing spring, 73-clamping block, 8-power output structure, 81-power output cable, 82-power output pipe, 83-conductive rack, 84-spring telescopic rod, 9-limiting structure, 91-pad, 92-telescopic sleeve, 93-limiting spring, 94-telescopic inner rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] See also Figure 1-6As shown, this embodiment is an adaptive overload protection power fuse, including a base plate 1, the upper end surface of the base plate 1 is fixedly connected to a protective structure 2, the right end surface of the protective structure 2 is provided with a power transmission component 3, the inner cavity of the protective structure 2 is located at the left end surface of the power transmission component 3 and a mounting structure 4 is provided, the left end surface of the mounting structure 4 is fixedly connected to a resistor component 5, the right side of the lower end surface of the inner cavity of the protective structure 2 is fixedly connected to a rotating structure 6, the left end surface of the protective structure 2 is provided with a power output structure 8, the inner cavity of the protective structure 2 is located at the right end surface of the power output structure 8 and is rotatably connected to a fixed structure 7, and the left side of the lower end surface of the inner cavity of the protective structure 2 is fixedly connected to a limiting structure 9.

[0024] Furthermore, the protective structure 2 includes a placement rack 21 fixedly connected to the upper end surface of the base plate 1, a protective rack 22 is hinged to the rear of the upper end surface of the placement rack 21 through a hinge, a magnetic block A is fixedly connected to the lower end of the inner cavity of the protective rack 22, and a magnetic block B is fixedly connected to the lower part of the front end surface of the placement rack 21, and the magnetic poles of the magnetic block A and the magnetic block B are opposite. Through the protective structure 2 on the base plate 1, the power transmission component 3 and the power output structure 8 are installed and placed during use, and then the inner cavity of the placement rack 21 is sealed and protected by the protective rack 22.

[0025] Furthermore, the power transmission component 3 includes a power transmission cable 31 fixedly connected to the middle of the right end surface of the placement rack 21, a power transmission tube 32 is fixedly connected to the middle of the right end surface of the inner cavity of the placement rack 21, the left end surface of the power transmission cable 31 passes through the placement rack 21 and is electrically connected to the power transmission tube 32, the left end surface of the power transmission tube 32 is rotatably connected to a mounting plate 33, the middle of the left end surface of the mounting plate 33 is fixedly connected to an electrical pin, the electrical pin passes through the mounting plate 33 and is electrically connected to the power transmission tube 32, and the outer surface of the mounting plate 33 is evenly provided with connecting grooves 34, and the mounting structure 4 is connected during use through the power transmission component 3 on the protective structure 2, and then the current of the external circuit is connected through the power transmission cable 31 and the power transmission tube 32, so that the fixed structure 7 and the power transmission component 3 are convenient for personnel to load, unload and replace the mounting structure 4 and the resistance component 5.

[0026] Furthermore, the mounting structure 4 includes a mounting ring 41 movably clamped on the outer surface of the mounting disk 33, the outer surface of the mounting ring 41 is evenly threaded with mounting bolts 42, the mounting bolts 42 penetrate the mounting ring 41, the left end face of the mounting ring 41 is fixedly connected with an adjusting gear 43, the right end face of the adjusting gear 43 and the electrical pins on the left end face of the mounting disk 33 are mutually clamped, the left end face of the adjusting gear 43 is fixedly connected with a resistor component 5, the resistor component 5 is electrically connected to the electrical pins on the mounting disk 33 through the adjusting gear 43, the resistor component 5 and the mounting structure 4 are installed and placed during use through the mounting structure 4 on the power transmission component 3, and then the mounting structure 4 and the resistor component 5 are conveniently rotated through the mounting disk 33, so that the resistor tube 51 is automatically rotated and replaced during use.

[0027] Furthermore, the resistor assembly 5 includes a resistor tube 51 uniformly fixedly connected to the left end face of the adjusting gear 43, a connecting disk 52 is fixedly connected to the left end face of the resistor tube 51, a limiting groove 53 is uniformly provided on the outer surface of the connecting disk 52, and an expanded microsphere 54 is fixedly connected to the inner cavity side wall of the limiting groove 53, a fixing groove is provided in the middle of the left end face of the connecting disk 52, and a connecting groove is uniformly provided on the outer edge of the left end face of the connecting disk 52, the connecting groove is electrically connected to each of the adjacent toothed belts 62, the resistor tube 51 is electrically connected to the electrical pins on the mounting disk 33 through the adjusting gear 43, and the circuit is protected by fuse during use through the resistor assembly 5 on the mounting structure 4, and then the circuit is connected through the connecting groove on the left side of the connecting disk 52.

[0028] Furthermore, the rotating structure 6 includes a sliding frame 61 fixedly connected to the right side of the lower end surface of the inner cavity of the placement rack 21, and the inner cavity of the sliding frame 61 is slidably connected with a toothed belt 62, and the front of the lower end of the toothed belt 62 is fixedly connected with an adjustment plate 63, and the rear end surface of the adjustment plate 63 is fixedly connected with an adjustment spring 64, and the rear end surface of the adjustment spring 64 is fixedly connected to the placement rack 21, and the upper end surface of the toothed belt 62 is meshed with the adjustment gear 43. The rotation of the mounting structure 4 is driven by the rotating structure 6 on the protective structure 2 during use, and then the sliding direction of the toothed belt 62 is adjusted by the adjustment spring 64 and the adjustment plate 63.

[0029] Furthermore, the power output structure 8 includes a power output cable 81 fixedly connected to the middle of the left end surface of the placement rack 21, a power output tube 82 is fixedly connected to the left end surface of the inner cavity of the placement rack 21, the power output cable 81 passes through the placement rack 21 and is electrically connected to the power output tube 82, a conductive frame 83 is fixedly connected to the right end surface of the power output tube 82, a spring telescopic rod 84 is fixedly connected to the lower part of the right end surface of the conductive frame 83, the power output tube 82 is electrically connected to the conductive frame 83, the telescopic inner rod of the spring telescopic rod 84 is electrically connected to the conductive frame 83, the spring telescopic rod 84 is electrically connected to the connecting groove on the left end surface of the connecting plate 52 in a contact manner, and the resistor assembly 5 is connected to the output circuit through the power output structure 8 on the protective structure 2 during use, and then installed and placed through the fixed structure 7.

[0030] Furthermore, the fixed structure 7 includes a fixed tube 71 rotatably connected to the middle part of the right end face of the conductive frame 83, a fixed spring 72 is fixedly connected to the left end face of the inner cavity of the fixed tube 71, a clamping block 73 is fixedly connected to the right end face of the fixed spring 72, the clamping block 73 is slidably connected to the inner cavity of the fixed tube 71, the right end face of the fixed tube 71 and the fixed groove opened in the middle part of the left end face of the connecting plate 52 match each other, and the resistor assembly 5 is placed and limited during use through the fixed structure 7 on the power output structure 8, and then the rotation center of the resistor assembly 5 is calibrated through the clamping block 73.

[0031] Furthermore, the limiting structure 9 includes a pad 91 fixedly connected to the middle left side of the lower end of the inner cavity of the placement rack 21, the upper end surface of the telescopic sleeve 92 is fixedly connected to the telescopic sleeve 92, the lower end surface of the inner cavity of the telescopic sleeve 92 is fixedly connected to the limiting spring 93, the upper end surface of the limiting spring 93 is fixedly connected to the telescopic inner rod 94, the telescopic inner rod 94 is slidably connected to the inner cavity of the telescopic sleeve 92, and the telescopic inner rod 94 is engaged in the inner cavity of the limiting groove 53. Through the limiting structure 9 on the protective structure 2, the rotation angle of the resistor assembly 5 is limited and adjusted during use, thereby realizing automatic replacement and locking of the resistor tube 51.

[0032] Working principle: When working, the power transmission cable 31 is connected to the circuit input, and the power output cable 81 is connected to the output end of the circuit, so that the device is connected in parallel to the required circuit. At this time, the current passes through the power transmission cable 31, the power transmission tube 32, the installation plate 33, the connection groove 34 and the adjustment gear 43 to form the device input circuit. At the same time, the output circuit is formed through the power output cable 81, the power output tube 82, the conductive frame 83, the spring telescopic rod 84 and the connection groove on the connection plate 52 in the device. Therefore, when the current is transmitted to the output circuit through the resistor tube 51 under the connection action of the input circuit, the current path of the circuit system is formed. When the circuit is overloaded or short-circuited, the temperature of the resistor tube 51 rises. At this time, the expandable microspheres 54 expand due to the temperature rise. Therefore, when the resistor tube 51 undergoes a fuse reaction, the temperature reaches the highest when it fuses. Therefore, under the influence of high temperature, the telescopic inner rod 94 slides downward under the push of the expansion of the expandable microspheres 54, so the limit spring 93 contracts, and at the same time the adjustment spring 64 contracts, so the adjustment plate 63 and the toothed belt 62 move backward, so the adjustment gear 43 rotates counterclockwise, so that the telescopic inner rod of the spring telescopic rod 84 contacts and electrically connects with another connecting groove on the connecting disk 52. At this time, due to the rotation of the adjustment gear 43, the connecting disk 52 rotates under the action of the resistor tube 51. At this time, the limit spring 93 extends, so the telescopic inner rod 94 slides upward, thereby engaging with another limit groove 53 to limit the rotating connecting disk 52, thereby restoring the circuit to a stable connected state. Therefore, after a short circuit and power failure, the device can realize the function of automatic circuit conduction. When the resistor assembly 5 needs to be replaced, the protective frame 22 is pulled to move the magnetic block A and the magnetic block B away from each other, exposing the inner cavity of the placement frame 21. At this time, the mounting bolts 42 are rotated in sequence so that the mounting bolts 42 and the connecting grooves 34 are no longer engaged. At this time, the resistor assembly 5 is pushed to the left, so that the clamping block 73 slides to the left, and the fixing spring 72 contracts, thereby taking the resistor assembly 5 and the mounting structure 4 out of the inner cavity of the device, and then the fixing groove of another new resistor assembly 5 is engaged with the clamping block 73 ... The resistor assembly 5, thereby engaging the mounting ring 41 and the mounting disk 33 with each other, and at this time, the mounting bolts 42 are rotated in sequence, so that the mounting bolts 42 pass through the mounting ring 41 and are threadedly connected to the connecting groove 34, and at the same time, the adjusting gear 43 and the toothed belt 62 are meshed with each other. At this time, the mounting structure 4 is rotated to make the adjusting gear 43 rotate clockwise, so the toothed belt 62 and the adjusting plate 63 slide forward, so the adjusting spring 64 is extended, and at this time, the limiting structure 9 extends the groove, so that the telescopic inner rod 94 and the limiting groove 53 on the connecting disk 52 are engaged with each other.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adaptive overload protection power fuse, comprising a base plate (1), characterized in that; The upper end surface of the bottom plate (1) is fixedly connected to a protective structure (2), a power transmission component (3) is arranged on the right end surface of the protective structure (2), an inner cavity of the protective structure (2) is located at a left end surface of the power transmission component (3) and a mounting structure (4) is arranged, a resistor component (5) is fixedly connected to the left end surface of the mounting structure (4), a rotating structure (6) is fixedly connected to the right side of the lower end surface of the inner cavity of the protective structure (2), a power output structure (8) is arranged on the left end surface of the protective structure (2), the inner cavity of the protective structure (2) is located at a right end surface of the power output structure (8) and is rotatably connected to a fixed structure (7), and a limiting structure (9) is fixedly connected to the left side of the lower end surface of the inner cavity of the protective structure (2).

2. The adaptive overload protection power fuse according to claim 1, characterized in that: The protective structure (2) comprises a placement frame (21) fixedly connected to the upper end surface of the bottom plate (1); a protection frame (22) is hingedly connected to the rear of the upper end surface of the placement frame (21) via a hinge; a magnetic block A is fixedly connected to the lower end of the inner cavity of the protection frame (22); and a magnetic block B is fixedly connected to the lower part of the front end surface of the placement frame (21); the magnetic block A and the magnetic block B have opposite magnetic poles.

3. The adaptive overload protection power fuse according to claim 2, characterized in that: The power transmission assembly (3) comprises a power transmission cable (31) fixedly connected to the middle of the right end face of the placement frame (21); a power transmission pipe (32) is fixedly connected to the middle of the right end face of the inner cavity of the placement frame (21); the left end face of the power transmission cable (31) passes through the placement frame (21) and is electrically connected to the power transmission pipe (32); the left end face of the power transmission pipe (32) is rotatably connected to a mounting plate (33); an electrical pin is fixedly connected to the middle of the left end face of the mounting plate (33); the electrical pin passes through the mounting plate (33) and is electrically connected to the power transmission pipe (32); and connection grooves (34) are evenly provided on the outer surface of the mounting plate (33).

4. The adaptive overload protection power fuse according to claim 3, characterized in that: The mounting structure (4) comprises a mounting ring (41) movably engaged with the outer surface of the mounting plate (33); the outer surface of the mounting ring (41) is evenly threadedly connected with mounting bolts (42); the mounting bolts (42) penetrate the mounting ring (41); the left end surface of the mounting ring (41) is fixedly connected with an adjusting gear (43); the right end surface of the adjusting gear (43) and the electrical pins on the left end surface of the mounting plate (33) are mutually engaged; the left end surface of the adjusting gear (43) is fixedly connected with a resistor component (5); the resistor component (5) is electrically connected to the electrical pins on the mounting plate (33) via the adjusting gear (43).

5. The adaptive overload protection power fuse according to claim 4, characterized in that: The resistor assembly (5) comprises a resistor tube (51) uniformly fixedly connected to the left end face of the adjusting gear (43); the left end face of the resistor tube (51) is fixedly connected to a connecting disk (52); the outer surface of the connecting disk (52) is uniformly provided with a limiting groove (53); the inner cavity side wall of the limiting groove (53) is fixedly connected to an expansion microsphere (54); a fixing groove is provided in the middle of the left end face of the connecting disk (52); the outer edge of the left end face of the connecting disk (52) is uniformly provided with a connecting groove; the connecting groove is electrically connected to each adjacent toothed belt (62); and the resistor tube (51) is electrically connected to an electrical pin on the mounting disk (33) via the adjusting gear (43).

6. The adaptive overload protection power fuse according to claim 4, characterized in that: The rotary structure (6) comprises a sliding frame (61) fixedly connected to the right side of the lower end surface of the inner cavity of the placement frame (21); a toothed belt (62) is slidably connected to the inner cavity of the sliding frame (61); an adjustment plate (63) is fixedly connected to the front of the lower end surface of the toothed belt (62); an adjustment spring (64) is fixedly connected to the rear end surface of the adjustment plate (63); the rear end surface of the adjustment spring (64) is fixedly connected to the placement frame (21); and the upper end surface of the toothed belt (62) is meshed with the adjustment gear (43).

7. The adaptive overload protection power fuse according to claim 2, characterized in that: The power output structure (8) comprises a power output cable (81) fixedly connected to the middle of the left end face of the placement rack (21); a power output tube (82) fixedly connected to the left end face of the inner cavity of the placement rack (21); the power output cable (81) passes through the placement rack (21) and is electrically connected to the power output tube (82); a conductive frame (83) is fixedly connected to the right end face of the power output tube (82); a spring telescopic rod (84) is fixedly connected to the lower part of the right end face of the conductive frame (83); the power output tube (82) is electrically connected to the conductive frame (83); the telescopic inner rod of the spring telescopic rod (84) is electrically connected to the conductive frame (83); and the spring telescopic rod (84) is electrically connected to the connection groove on the left end face of the connection plate (52) in a contact-type electrical connection.

8. The adaptive overload protection power fuse according to claim 7, characterized in that: The fixing structure (7) comprises a fixing tube (71) rotatably connected to the middle of the right end surface of the conductive frame (83); a fixing spring (72) is fixedly connected to the left end surface of the inner cavity of the fixing tube (71); a clamping block (73) is fixedly connected to the right end surface of the fixing spring (72); the clamping block (73) is slidably connected to the inner cavity of the fixing tube (71); and the right end surface of the fixing tube (71) matches a fixing groove provided in the middle of the left end surface of the connecting plate (52).

9. The adaptive overload protection power fuse according to claim 5, characterized in that: The limiting structure (9) comprises a cushion block (91) fixedly connected to the middle part of the left side of the lower end of the inner cavity of the placement frame (21); the upper end surface of the telescopic sleeve (92) is fixedly connected to the telescopic sleeve (92); the lower end surface of the inner cavity of the telescopic sleeve (92) is fixedly connected to a limiting spring (93); the upper end surface of the limiting spring (93) is fixedly connected to a telescopic inner rod (94); the telescopic inner rod (94) is slidably connected to the inner cavity of the telescopic sleeve (92); and the upper surface of the telescopic inner rod (94) is engaged in the inner cavity of the limiting groove (53).

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