A voltage and current monitoring and regulating device

Abstract

The present invention relates to the technical field related to voltage and current monitoring and regulation, and specifically relates to a voltage and current monitoring and regulation device, which includes a voltage regulating resistor, a spiral coil, a force-bearing annular magnet, a return spring and a galvanometer. The front and rear ends of the voltage regulating resistor are integrally formed with a first-level threaded seat and a second-level threaded seat respectively. The end of the second-level threaded seat is integrally formed with a first-level wiring head. The first-level wiring head is connected to a positive wire body, and the positive wire body is electrically connected to the positive pole of a DC switching power supply. An installation rod is threadedly connected to the first-level threaded seat; the current in the spiral coil causes the spiral coil to generate a magnetic field, and the magnetic field strength is changed according to the magnitude of the current, so as to adjust the position of the force-bearing annular magnet, so that the part of the voltage regulating resistor connected to the circuit is changed, so as to change the overall resistance value of the circuit, so as to realize adaptive regulation of the overall current intensity of the circuit, so as to effectively avoid potential safety hazards caused by excessive overall current in the circuit.

Description

Technical Field

[0001] The present invention relates to the technical field related to voltage and current monitoring and regulation, and specifically to a voltage and current monitoring and regulation device. Background Technique

[0002] An industrial router is a device that uses a public wireless network to provide wireless data transmission functions for users; it has been widely used in various industries; and too large or too small current in the router will affect the signal stability of the router to a certain extent;

[0003] The existing Chinese patent document with the publication number CN208707363U discloses a variable current and voltage output system, and its solution includes: a control unit, which includes a first communication port, a second communication port, and a third communication port; a voltage conversion unit, which includes a first voltage port, a second voltage port, and a voltage output port, and the first voltage port is connected to the first communication port; a current conversion unit, which includes a first current port, a second current port, and a current output port, and the first current port is connected to the second communication port, and the first voltage port and the first current port are connected to form a node; and a power supply unit, which includes a first port, a second port, and a third port, the first port is connected to the third communication port, and the second port is connected to the node, wherein the control unit is configured to control the control unit to respectively output adjustable voltage values and current values from the voltage output port of the voltage conversion unit and the current output port of the current conversion unit;

[0004] However, in the above solution, the current of the system is monitored, and then the magnitude of the current of the system is adjusted through a control circuit. However, when the control circuit fails and the DC switching power supply cannot output a normal power supply voltage, it will cause the problem of excessive system current, resulting in unstable current inside the industrial router, thereby affecting the service life of the industrial router, and even causing damage to the industrial router in severe cases. Therefore, the present invention proposes a voltage and current monitoring and regulation device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a voltage and current monitoring and regulation device to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A voltage and current monitoring and regulation device, including:

[0007] A voltage regulating resistor, with a first - stage threaded seat and a second - stage threaded seat integrally formed at the front and rear ends of the voltage regulating resistor respectively. An end of the second - stage threaded seat is integrally formed with a first - stage connection head. The first - stage connection head is connected to a positive - pole wire body, and the positive - pole wire body is electrically connected to the positive pole of a DC switching power supply. An installation rod is threadedly connected to the first - stage threaded seat. An installation plate and a first - stage spring support ring are integrally formed on the installation rod. The installation plate is fixedly connected to the inner side wall of the housing of an industrial router. A connection pipe is threadedly connected to the second - stage threaded seat. A connection plate is integrally formed at the end of the connection pipe. The positive - pole wire body passes through the connection pipe and the connection plate. An inner installation pipe and an outer installation pipe are fixedly connected to the connection plate;

[0008] A spiral coil, which is installed between the inner installation pipe and the outer installation pipe. A second - stage connection head is formed at one end of the spiral coil facing the second - stage threaded seat, and a third - stage connection head is formed at one end of the spiral coil facing the first - stage threaded seat;

[0009] A force - receiving annular magnet, which is sleeved and installed on the voltage regulating resistor;

[0010] A return spring, which is sleeved on the installation rod;

[0011] An ammeter, and the positive - pole terminal of the ammeter is electrically connected to the third - stage connection head through a third - stage wire body.

[0012] Preferably, the inner installation pipe, the outer installation pipe, the voltage regulating resistor, the spiral coil, and the force - receiving annular magnet are coaxially arranged. A connection column is fixedly connected to the force - receiving annular magnet in the direction towards the installation rod. A second - stage spring support ring is fixedly connected to the connection column. The two ends of the return spring are respectively abutted against the first - stage spring support ring and the second - stage spring support ring. After the spiral coil is powered on, the magnetic field formed by the spiral coil exerts a thrust on the force - receiving annular magnet in the direction towards the installation rod. A wiring mechanism is installed on the force - receiving annular magnet. One end of the wiring mechanism is in contact connection with the voltage regulating resistor, and the other end of the wiring mechanism is connected to a second - stage wire body. The other end of the second - stage wire body is connected to the second - stage connection head. The negative pole of the ammeter is electrically connected to the negative pole of the DC switching power supply through a negative - pole wire body, and the ammeter is electrically connected to a control circuit.

[0013] Preferably, a guiding column is integrally formed on the outer side wall of the voltage regulating resistor. A guiding pulley is installed on the inner side wall of the force - receiving annular magnet. Three guiding columns and three guiding pulleys are evenly arranged in a circumferential manner and are correspondingly arranged. The guiding column is cast from an insulating material. The side wall of the wheel body of the guiding pulley is concave - shaped, and the concave radian of the side wall of the wheel body of the guiding pulley coincides with the side - wall radian of the guiding column. And the guiding pulley does not contact the voltage regulating resistor. When the voltage regulating resistor is actually installed, one of the guiding columns is located directly above the voltage regulating resistor.

[0014] Preferably, a limiting stop is integrally formed on the side wall of the front end of the voltage regulating resistor, a baffle is integrally formed on the side wall of the end of the connecting pipe, the moving area of the force-bearing annular magnet is located between the limiting stop and the baffle, and the mounting rod, the connecting pipe, the return spring, the inner mounting pipe, and the outer mounting pipe are all made of insulating materials.

[0015] Preferably, a guiding seat is fixedly connected to the force-bearing annular magnet, a regular hexagon-shaped guiding hole is formed in the guiding seat, the wiring mechanism includes a guiding rod, a pulley seat, a rotating shaft, a wheel body, and a supporting spring, the guiding rod is movably arranged in the guiding hole, the pulley seat is fixedly connected to the outer end of the guiding rod, the wheel body is rotatably mounted on the pulley seat through the rotating shaft, the supporting spring is sleeved on the guiding rod, the guiding rod, the pulley seat, the rotating shaft, and the wheel body are all made of conductive materials, when the wiring mechanism is actually installed, the supporting spring is always in a compressed state, and the wheel body is always in contact with the side wall of the voltage regulating resistor.

[0016] Preferably, a three-stage threaded seat is integrally formed on the outer end of the guiding rod, a conductive wire clamping plate is integrally formed at the end of the three-stage threaded seat, a limiting nut is screwed on the three-stage threaded seat, the outer contour of the limiting nut is larger than the guiding hole, and a threaded hole and a force-bearing groove are formed in the limiting nut, the three-stage threaded seat and the conductive wire clamping plate are both made of conductive materials, when the limiting nut is actually tightened, the side wall of the force-bearing groove applies an inward thrust to the conductive wire clamping plate, so that the conductive wire clamping plate forms a positioning and clamping effect on the end of the secondary wire body.

[0017] Preferably, six conductive wire clamping plates are arranged in an equidistant circle, and anti-slip protrusions are integrally formed on the inner side walls of the conductive wire clamping plates, the materials of the anti-slip protrusions are the same as those of the conductive wire clamping plates, and the anti-slip protrusions are protrusion structures with a semicircular cross-section, and multiple anti-slip protrusions are arranged at equal intervals.

[0018] Preferably, the secondary wire body is a spring wire, when the spiral coil is not powered on and the return spring is in a reset state, the wheel body is in contact with the side wall of the rear end of the voltage regulating resistor, and when the force-bearing annular magnet moves to contact the limiting stop, the wheel body is in contact with the side wall of the front end of the voltage regulating resistor.

[0019] Preferably, a first clamping plate and a second clamping plate are integrally formed on the inner side surface of the connecting plate, the first clamping plate and the second clamping plate are both arranged in groups, when the inner mounting pipe is actually installed, the first clamping plate forms a clamping and positioning on the inner mounting pipe, and when the outer mounting pipe is actually installed, the second clamping plate forms a clamping and positioning on the outer mounting pipe.

[0020] Preferably, a primary positioning hole is provided on the side wall of the rear end of the inner installation pipe, and a secondary positioning hole is provided on the side wall of the rear end of the outer installation pipe. Primary engaging protrusions are integrally formed on the sides of the primary clamping plate, and secondary engaging protrusions are integrally formed on the sides of the secondary clamping plate. During actual installation of the inner installation pipe and the outer installation pipe, the primary engaging protrusions and the secondary engaging protrusions are respectively engaged in the primary positioning hole and the secondary positioning hole. Both the primary engaging protrusions and the secondary engaging protrusions are protrusion structures with an isosceles triangle cross-section.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. By providing a voltage and current real-time detection device composed of a voltage regulating resistor, a spiral coil, a force-bearing annular magnet, a return spring, and a galvanometer, a magnetic field is generated in the spiral coil by the current in the spiral coil, and the magnetic field intensity is changed according to the magnitude of the current, so as to adjust the position of the force-bearing annular magnet, so that the part of the voltage regulating resistor connected to the circuit is changed, thereby changing the overall resistance value of the circuit, so as to achieve adaptive adjustment of the overall current intensity of the circuit, effectively avoiding potential safety hazards caused by excessive overall current in the circuit;

[0023] 2. By providing a guide seat on the force-bearing annular magnet and setting the wiring mechanism on the guide seat to be composed of a guide rod, a pulley seat, a rotating shaft, a wheel body, and a support spring, the flexible abutting force of the support spring is used to ensure that the wheel body can stably contact the voltage regulating resistor, effectively ensuring the connection stability of the circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the present invention;

[0025] Figure 2 is Figure 1 an enlarged schematic diagram of the structure at A in

[0026] Figure 3 is an installation schematic diagram of the outer installation pipe of the present invention;

[0027] Figure 4 is a schematic diagram of the internal structure of the outer installation pipe of the present invention;

[0028] Figure 5 is Figure 4 an enlarged schematic diagram of the structure at B in

[0029] Figure 6 is an installation schematic diagram of the spiral coil of the present invention;

[0030] Figure 7 is Figure 6 an enlarged schematic diagram of the structure at C in

[0031] Figure 8 Schematic diagram of the positions of the inner installation pipe and the outer installation pipe in the present invention;

[0032] Figure 9 is Figure 8 Enlarged schematic diagram of the structure at position D in

[0033] Figure 10 Schematic diagram of the connecting plate structure of the present invention;

[0034] Figure 11 is Figure 10 Enlarged schematic diagram of the structure at position E in

[0035] Figure 12 Front view of the voltage regulating resistor of the present invention;

[0036] Figure 13 Schematic diagram of the structure of the voltage regulating resistor of the present invention;

[0037] Figure 14 Front side view of the force-bearing ring magnet of the present invention;

[0038] Figure 15 Rear side view of the force-bearing ring magnet of the present invention;

[0039] Figure 16 Schematic diagram of the guide rod structure of the present invention;

[0040] Figure 17 is Figure 16 Enlarged schematic diagram of the structure at position F in

[0041] Figure 18 is Figure 17 Enlarged schematic diagram of the structure at position G in

[0042] Figure 19 Half-sectional view of the limit nut of the present invention.

[0043] In the figure: voltage regulating resistor 1, spiral coil 2, force-bearing annular magnet 3, return spring 4, mounting rod 5, mounting plate 6, first-level spring support ring 7, connecting pipe 8, connecting plate 9, inner mounting pipe 10, outer mounting pipe 11, first-level threaded seat 13, second-level threaded seat 14, first-level terminal 15, positive wire body 16, second-level wire body 17, second-level terminal 18, third-level terminal 19, connecting column 20, second-level spring support ring 21, guide post 22, guide pulley 23, guide seat 24, guide rod 25, pulley seat 26, rotating shaft 27, wheel body 28, support spring 29, third-level threaded seat 30, conductive wire clamping plate 31, limit nut 32, threaded hole 33, force-bearing groove 34, anti-slip protrusion 35, limit stop 36, baffle 37, first-level clamping plate 38, second-level clamping plate 39, first-level engaging protrusion 40, second-level engaging protrusion 41, first-level positioning hole 42, second-level positioning hole 43, negative wire body 44, industrial router 45. Detailed implementation manners

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0045] Please refer to Figures 1 - 19 , the present invention provides embodiments of the following three preferred solutions:

[0046] Embodiment 1: A voltage and current monitoring and regulating device, including a voltage regulating resistor 1, a spiral coil 2, a force-bearing annular magnet 3, a return spring 4, and a galvanometer. The front and rear ends of the voltage regulating resistor 1 are integrally formed with a first-level thread seat 13 and a second-level thread seat 14 respectively. The end of the second-level thread seat 14 is integrally formed with a first-level connection head 15. The first-level connection head 15 is connected to a positive wire body 16, and the positive wire body 16 is electrically connected to the positive pole of a DC switching power supply. A mounting rod 5 is threadedly connected to the first-level thread seat 13. An installation plate 6 and a first-level spring support ring 7 are integrally formed on the mounting rod 5. The installation plate 6 is fixedly connected to the inner side wall of the housing of the industrial router 45. A connecting pipe 8 is threadedly connected to the second-level thread seat 14. A connecting plate 9 is integrally formed at the end of the connecting pipe 8. The positive wire body 16 passes through the connecting pipe 8 and the connecting plate 9. An inner installation pipe 10 and an outer installation pipe 11 are fixedly connected to the connecting plate 9. The spiral coil 2 is installed between the inner installation pipe 10 and the outer installation pipe 11. A second-level connection head 18 is formed at one end of the spiral coil 2 facing the second-level thread seat 14, and a third-level connection head 19 is formed at the end of the spiral coil 2 facing the first-level thread seat 13. The force-bearing annular magnet 3 is sleeved and installed on the voltage regulating resistor 1, and a wiring mechanism is installed on the force-bearing annular magnet 3. One end of the wiring mechanism is in contact connection with the voltage regulating resistor 1, and the other end of the wiring mechanism is connected to a second-level wire body 17. The other end of the second-level wire body 17 is connected to the second-level connection head 18. The return spring 4 is sleeved on the mounting rod 5. The positive terminal of the galvanometer is electrically connected to the third-level connection head 19 through a third-level wire body, and the negative terminal of the galvanometer is electrically connected to the negative pole of the DC switching power supply through a negative wire body 44. The galvanometer is electrically connected to a control circuit. The inner installation pipe 10, the outer installation pipe 11, the voltage regulating resistor 1, the spiral coil 2, and the force-bearing annular magnet 3 are coaxially arranged. A connecting column 20 is fixedly connected to the force-bearing annular magnet 3 in the direction facing the mounting rod 5. A second-level spring support ring 21 is fixedly connected to the connecting column 20. The two ends of the return spring 4 are respectively abutted against the first-level spring support ring 7 and the second-level spring support ring 21. After the spiral coil 2 is powered on, the magnetic field formed by the spiral coil 2 exerts a thrust on the force-bearing annular magnet 3 in the direction facing the mounting rod 5.

[0047] On the outer side wall of the voltage regulating resistor 1, a guiding column 22 is integrally formed. On the inner side wall of the force-bearing annular magnet 3, a guiding pulley 23 is installed. Three guiding columns 22 and three guiding pulleys 23 are arranged at equal circumferences, and the guiding columns 22 and the guiding pulleys 23 are correspondingly arranged. The guiding column 22 is cast from an insulating material. The side wall of the wheel body of the guiding pulley 23 is concave, and the concave radian of the side wall of the wheel body of the guiding pulley 23 coincides with the side wall radian of the guiding column 22, and the guiding pulley 23 does not contact the voltage regulating resistor 1. When the voltage regulating resistor 1 is actually installed, one of the guiding columns 22 is located directly above the voltage regulating resistor 1. By setting up a voltage and current real-time detection device composed of the voltage regulating resistor 1, the spiral coil 2, the force-bearing annular magnet 3, the return spring 4 and the galvanometer, the current in the spiral coil 2 causes the spiral coil 2 to generate a magnetic field, and the magnetic field intensity is changed according to the magnitude of the current, so as to adjust the position of the force-bearing annular magnet 3, so that the part of the voltage regulating resistor 1 connected to the circuit is changed, so as to change the overall resistance value of the circuit, so as to achieve adaptive adjustment of the overall current intensity of the circuit, so as to effectively avoid potential safety hazards caused by excessive overall current in the circuit.

[0048] On the front side end side wall of the voltage regulating resistor 1, a limit stop block 36 is integrally formed. On the end side wall of the connecting pipe 8, a baffle 37 is integrally formed. The moving area of the force-bearing annular magnet 3 is located between the limit stop block 36 and the baffle 37. The mounting rod 5, the connecting pipe 8, the return spring 4, the inner mounting pipe 10 and the outer mounting pipe 11 are all cast from insulating materials.

[0049] Embodiment 2: On the basis of Embodiment 1, a guiding seat 24 is fixedly connected to the force-bearing annular magnet 3. A regular hexagonal guiding hole is formed in the guiding seat 24. The wiring mechanism includes a guiding rod 25, a pulley seat 26, a rotating shaft 27, a wheel body 28 and a supporting spring 29. The guiding rod 25 is movably arranged in the guiding hole. The pulley seat 26 is fixedly connected to the outer end of the guiding rod 25. The wheel body 28 is rotatably mounted on the pulley seat 26 through the rotating shaft 27. The supporting spring 29 is sleeved on the guiding rod 25. The guiding rod 25, the pulley seat 26, the rotating shaft 27 and the wheel body 28 are all cast from conductive materials. When the wiring mechanism is actually installed, the supporting spring 29 is always in a compressed state, and the wheel body 28 is always in contact with the side wall of the voltage regulating resistor 1. By setting up the guiding seat 24 on the force-bearing annular magnet 3 and setting the wiring mechanism on the guiding seat 24 to be composed of the guiding rod 25, the pulley seat 26, the rotating shaft 27, the wheel body 28 and the supporting spring 29, the flexible abutting force of the supporting spring 29 is used to ensure that the wheel body 28 can be stably in contact with the voltage regulating resistor 1, so as to effectively ensure the connection stability of the circuit.

[0050] Embodiment 3: On the basis of Embodiment 2, a three-stage threaded seat 30 is integrally formed on the outer end of the guide rod 25. A conductive wire clamping plate 31 is integrally formed at the end of the three-stage threaded seat 30. A limiting nut 32 is screwed on the three-stage threaded seat 30. The outer contour of the limiting nut 32 is larger than the guide hole, and a threaded hole 33 and a force-receiving groove 34 are provided on the limiting nut 32. The three-stage threaded seat 30 and the conductive wire clamping plate 31 are both cast from conductive materials. When the limiting nut 32 is actually tightened, the side wall of the force-receiving groove 34 exerts an inward thrust on the conductive wire clamping plate 31, so that the conductive wire clamping plate 31 forms a positioning and clamping effect on the wire head of the secondary wire body 17. By installing the limiting nut 32, the problem of the guide rod 25 falling off during disassembly and assembly of the force-receiving ring magnet 3 can be avoided, and the installation of the limiting nut 32 can simultaneously form a positioning and fixing effect on the wire head of the secondary wire body 17, so that the limiting of the guide rod 25 and the positioning of the secondary wire body 17 are realized through a single limiting nut 32.

[0051] Six conductive wire clamping plates 31 are arranged equidistantly in a circumferential manner, and anti-slip protrusions 35 are integrally formed on the inner side walls of the conductive wire clamping plates 31. The material of the anti-slip protrusions 35 is the same as that of the conductive wire clamping plates 31, and the anti-slip protrusions 35 are protrusion structures with a semi-circular cross-section. A plurality of anti-slip protrusions 35 are arranged at equal intervals. The setting of the anti-slip protrusions 35 can effectively ensure the positioning stability of the wire head of the secondary wire body 17.

[0052] The secondary wire body 17 is a spring wire. When the spiral coil 2 is not powered on and the return spring 4 is in the return state, the wheel body 28 abuts against the rear side wall of the voltage regulating resistor 1. When the force-receiving ring magnet 3 moves to abut against the limit block 36, the wheel body 28 abuts against the front side wall of the voltage regulating resistor 1. The secondary wire body 17 being a spring wire can avoid the occurrence of winding phenomena.

[0053] A first clamping plate 38 and a second clamping plate 39 are integrally formed on the inner side surface of the connecting plate 9. The first clamping plate 38 and the second clamping plate 39 are both arranged in groups. When the inner mounting tube 10 is actually installed, the first clamping plate 38 forms a clamping and positioning on the inner mounting tube 10. When the outer mounting tube 11 is actually installed, the second clamping plate 39 forms a clamping and positioning on the outer mounting tube 11. The setting of the first clamping plate 38 and the second clamping plate 39 can facilitate the positioning and installation of the inner mounting tube 10 and the outer mounting tube 11.

[0054] A first - level positioning hole 42 is formed in the rear - end side wall of the inner installation pipe 10, and a second - level positioning hole 43 is formed in the rear - end side wall of the outer installation pipe 11. First - level engaging protrusions 40 are integrally formed on the sides of the first - level clamping plates 38, and second - level engaging protrusions 41 are integrally formed on the sides of the second - level clamping plates 39. When the inner installation pipe 10 and the outer installation pipe 11 are actually installed, the first - level engaging protrusions 40 and the second - level engaging protrusions 41 are respectively engaged in the first - level positioning hole 42 and the second - level positioning hole 43. The first - level engaging protrusions 40 and the second - level engaging protrusions 41 are both protrusion structures with an isosceles - triangle cross - section. The settings of the first - level engaging protrusions 40 and the second - level engaging protrusions 41 can improve the installation stability of the inner installation pipe 10 and the outer installation pipe 11, and can ensure the convenience of their disassembly and assembly.

[0055] Although the above - described illustrative specific embodiments of the present application have been described to enable those skilled in the art to understand the present application, the present application is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims, all applications and creations using the concept of the present application are within the scope of protection.

Claims

1. A voltage and current monitoring and regulating device, characterized in that: Including: A voltage regulating resistor (1), with a first - stage threaded seat (13) and a second - stage threaded seat (14) integrally formed at the front and rear ends of the voltage regulating resistor (1) respectively. A first - stage connection head (15) is integrally formed at the end of the second - stage threaded seat (14). The first - stage connection head (15) is connected to a positive - pole wire body (16), and the positive - pole wire body (16) is electrically connected to the positive pole of a DC switching power supply. An installation rod (5) is threadedly connected to the first - stage threaded seat (13). An installation plate (6) and a first - stage spring support ring (7) are integrally formed on the installation rod (5). The installation plate (6) is fixedly connected to the inner side wall of the housing of an industrial router (45). A connecting pipe (8) is threadedly connected to the second - stage threaded seat (14). A connecting plate (9) is integrally formed at the end of the connecting pipe (8). The positive - pole wire body (16) passes through the connecting pipe (8) and the connecting plate (9). An inner installation pipe (10) and an outer installation pipe (11) are fixedly connected to the connecting plate (9); A spiral coil (2), the spiral coil (2) is installed between the inner installation pipe (10) and the outer installation pipe (11), and a second - stage connection head (18) is formed at one end of the spiral coil (2) facing the second - stage threaded seat (14), and a third - stage connection head (19) is formed at one end of the spiral coil (2) facing the first - stage threaded seat (13); A force - receiving annular magnet (3), the force - receiving annular magnet (3) is sleeved and installed on the voltage regulating resistor (1); A return spring (4), the return spring (4) is sleeved on the installation rod (5); An ammeter, the positive - pole terminal of the ammeter is electrically connected to the third - stage connection head (19) through a third - stage wire body; The inner installation pipe (10), the outer installation pipe (11), the voltage regulating resistor (1), the spiral coil (2), and the force - receiving annular magnet (3) are coaxially arranged. A connecting column (20) is fixedly connected to the force - receiving annular magnet (3) in the direction towards the installation rod (5). A second - stage spring support ring (21) is fixedly connected to the connecting column (20). The two ends of the return spring (4) are respectively abutted against the first - stage spring support ring (7) and the second - stage spring support ring (21). After the spiral coil (2) is powered on, the magnetic field formed by the spiral coil (2) exerts a thrust on the force - receiving annular magnet (3) in the direction towards the installation rod (5). A wiring mechanism is installed on the force - receiving annular magnet (3). One end of the wiring mechanism is in contact connection with the voltage regulating resistor (1), and the other end of the wiring mechanism is connected to a second - stage wire body (17). The other end of the second - stage wire body (17) is connected to the second - stage connection head (18). The negative pole of the ammeter is electrically connected to the negative pole of the DC switching power supply through a negative - pole wire body (44), and the ammeter is electrically connected to a control circuit; A guiding column (22) is integrally formed on the outer side wall of the voltage regulating resistor (1). A guiding pulley (23) is installed on the inner side wall of the force-bearing annular magnet (3). Three guiding columns (22) and three guiding pulleys (23) are evenly arranged in a circumferential manner, and the guiding columns (22) and the guiding pulleys (23) are correspondingly arranged. The guiding column (22) is cast from an insulating material. The side wall of the wheel body of the guiding pulley (23) is concave, and the concave radian of the side wall of the wheel body of the guiding pulley (23) coincides with the side wall radian of the guiding column (22), and the guiding pulley (23) does not contact the voltage regulating resistor (1). When the voltage regulating resistor (1) is actually installed, one of the guiding columns (22) is located directly above the voltage regulating resistor (1).

2. The voltage and current monitoring and regulating device according to claim 1, wherein: A limiting block (36) is integrally formed on the front side end side wall of the voltage regulating resistor (1). A baffle (37) is integrally formed on the end side wall of the connecting pipe (8). The moving area of the force-bearing annular magnet (3) is located between the limiting block (36) and the baffle (37). The mounting rod (5), the connecting pipe (8), the return spring (4), the inner mounting pipe (10), and the outer mounting pipe (11) are all cast from insulating materials.

3. The voltage and current monitoring and regulating device according to claim 2, characterized in that: A guiding seat (24) is fixedly connected to the force-bearing annular magnet (3). A regular hexagonal guiding hole is formed in the guiding seat (24). The wiring mechanism includes a guiding rod (25), a pulley seat (26), a rotating shaft (27), a wheel body (28), and a supporting spring (29). The guiding rod (25) is movably arranged in the guiding hole. The pulley seat (26) is fixedly connected to the outer end of the guiding rod (25). The wheel body (28) is rotatably installed on the pulley seat (26) through the rotating shaft (27). The supporting spring (29) is sleeved on the guiding rod (25). The guiding rod (25), the pulley seat (26), the rotating shaft (27), and the wheel body (28) are all cast from conductive materials. When the wiring mechanism is actually installed, the supporting spring (29) is always in a compressed state, and the wheel body (28) is always in contact with the side wall of the voltage regulating resistor (1).

4. A voltage and current monitoring and regulating device according to claim 3, characterized in that: A three-stage threaded seat (30) is integrally formed on the outer end of the guiding rod (25). A conductive wire clamping plate (31) is integrally formed at the end of the three-stage threaded seat (30). A limiting nut (32) is screwed on the three-stage threaded seat (30). The outer contour of the limiting nut (32) is larger than the guiding hole, and a threaded hole (33) and a force-bearing groove (34) are formed in the limiting nut (32). The three-stage threaded seat (30) and the conductive wire clamping plate (31) are both cast from conductive materials. When the limiting nut (32) is actually tightened, the side wall of the force-bearing groove (34) exerts an inward thrust on the conductive wire clamping plate (31), so that the conductive wire clamping plate (31) forms a positioning clamping effect on the wire head of the secondary wire body (17).

5. The voltage and current monitoring and regulating device according to claim 4, characterized in that: Six conductive wire clamping plates (31) are arranged equidistantly in a circumferential manner, and anti-slip protrusions (35) are integrally formed on the inner side walls of the conductive wire clamping plates (31). The anti-slip protrusions (35) are made of the same material as the conductive wire clamping plates (31), and the anti-slip protrusions (35) are protrusion structures with a semi-circular cross-section, and multiple anti-slip protrusions (35) are arranged at equal intervals.

6. The voltage and current monitoring and regulating device according to claim 5, characterized in that: The secondary wire body (17) is a spring wire. When the spiral coil (2) is not powered on and the return spring (4) is in the return state, the wheel body (28) abuts against the rear side wall of the voltage regulating resistor (1). When the force-applied annular magnet (3) moves to abut against the limit stop (36), the wheel body (28) abuts against the front side wall of the voltage regulating resistor (1).

7. The voltage and current monitoring and regulating device according to claim 6, characterized in that: A primary clamping plate (38) and a secondary clamping plate (39) are integrally formed on the inner side surface of the connecting plate (9). The primary clamping plate (38) and the secondary clamping plate (39) are both arranged in groups. When the inner mounting tube (10) is actually installed, the primary clamping plate (38) forms clamping and positioning for the inner mounting tube (10). When the outer mounting tube (11) is actually installed, the secondary clamping plate (39) forms clamping and positioning for the outer mounting tube (11).

8. A voltage and current monitoring and regulating device according to claim 7, characterized in that: A primary positioning hole (42) is formed in the rear side wall of the inner mounting tube (10), and a secondary positioning hole (43) is formed in the rear side wall of the outer mounting tube (11). Primary engaging protrusions (40) are integrally formed on the sides of the primary clamping plate (38), and secondary engaging protrusions (41) are integrally formed on the sides of the secondary clamping plate (39). When the inner mounting tube (10) and the outer mounting tube (11) are actually installed, the primary engaging protrusions (40) and the secondary engaging protrusions (41) are respectively engaged in the primary positioning hole (42) and the secondary positioning hole (43). The primary engaging protrusions (40) and the secondary engaging protrusions (41) are both protrusion structures with an isosceles triangle cross-section.

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