A dual power supply automatic switching device for power transformation and distribution

Abstract

The present invention provides a dual-power automatic switching device for power transformation and distribution, which relates to the technical field of dual-power automatic switching, and comprises: a shell, an operating cylinder fixedly mounted on the top of the outer surface of the shell, a secondary power supply and a main power supply fixedly connected on both sides of the outer surface of the shell, a mounting shell fixedly mounted on one side of the inner wall of the shell, a first slider and a second slider provided inside the shell, the first slider and the second slider respectively slidably mounted inside the shell, a cam turntable provided inside the shell, a motor provided inside the mounting shell, the output shaft of the motor fixedly connected to a coupling, and a plurality of slides fixedly mounted on both sides of the outer surface of the mounting shell. The present invention solves the problem in the prior art that, when the state has been switched to automatic mode, manual twisting and adjustment will cause damage to the switching device due to the mutual correlation between the manually controlled rotating shaft and the power output of the motor.

Description

Technical Field

[0001] The present invention relates to the technical field of dual power supply automatic switching, in particular to a dual power supply automatic switching device for power transformation and distribution. Background Art

[0002] A dual power transfer switch is a switch that automatically switches to another power source in the event of a power outage. Generally, dual power transfer switches are widely used in high-rise buildings, computer rooms, residential areas, hospitals, airports, docks, fire protection, metallurgy, chemical industry, textile and other important places where power outages are not allowed. The dual power automatic transfer switch is controlled by a microprocessor and is used to start and switch between grid power and grid power or grid power and generator power in the power grid system, which can ensure continuous power supply. When the main power suddenly fails or the power is cut off, the dual power transfer switch will automatically switch to the backup power supply. Under light load, the backup power can also be supplied by the generator, so that the equipment can still operate normally. The most common applications are elevators, fire protection, monitoring, and lighting.

[0003] For example, Chinese patent application CN106329702A discloses an automatic dual power supply switching device. Specifically, it automatically switches to another power supply when one power supply fails. The device includes power cables, characterized in that the power cables consist of a first power cable A and a second power cable B. A fire controller XF is located between the incoming terminals of the first and second power cables A and B. The first and second power cables A and B are connected to the same load via a first circuit breaker control circuit 1ZKK and a second circuit breaker control circuit 2ZKK, respectively. This automatic dual power supply switching device can meet user needs and ensure normal operation.

[0004] Although the above scheme has the above advantages, the existing power transformation and distribution device, including the dual power automatic switching device in the above scheme, is usually equipped with two circuit breakers with accessories, a set of transmission mechanisms including motor and manual control modes, and a controller. The two circuit breakers automatically switch the standing and standby power supplies and ensure that only one circuit breaker is in the closed state to ensure continuous power supply to important places. However, since the manually controlled shaft is related to the power output of the motor, when manual power switching is required, in addition to performing the switching operation, the torque of the motor rotating coil must also be overcome, resulting in difficulty in manual control switching, especially For some high-power dual-power automatic switching switches, the manual control operation requires the cooperation of multiple people. In addition, for the state that has been switched to automatic mode, since the manually controlled rotating shaft is related to the power output of the motor, manual twisting and adjustment at this time will cause damage to the switching device. Although most dual-power automatic switching devices are now equipped with additional locks, which can avoid such problems to a certain extent after being locked, they cannot fundamentally avoid the problem of damage caused by manual twisting in automatic mode. Based on this, the applicant proposed a dual-power automatic switching device for power distribution that can be turned in an automatic state without any effect, and is more labor-saving and flexible in mode switching. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem in the prior art that when the state has been switched to automatic mode, since the manually controlled rotating shaft and the power output of the motor are interrelated, manual twisting and adjustment at this time may cause damage to the switching device.

[0006] In order to achieve the above-mentioned objectives, the present invention adopts the following technical solution: a dual power automatic switching device for power transformation and distribution, comprising: a shell, an operating cylinder is fixedly installed on the top of the outer surface of the shell, a secondary power supply and a main power supply are fixedly connected on both sides of the outer surface of the shell, a mounting shell is fixedly installed on one side of the inner wall of the shell, a first slider and a second slider are provided inside the shell, the first slider and the second slider are respectively slidably installed inside the shell, a cam turntable is provided inside the shell, a motor is provided inside the mounting shell, the output shaft of the motor is fixedly connected to a coupling, a plurality of slides are fixedly installed on both sides of the outer surface of the mounting shell, the motor is slidably embedded in the inside of the slides, a plurality of springs are fixedly installed on both sides of the inner wall of the mounting shell, a plurality of pneumatic telescopic components are fixedly installed on both sides of the inner wall of the mounting shell, a pressure sensor is fixedly installed on one side of the inner wall of the mounting shell, and the plurality of pneumatic telescopic components are evenly divided into a plurality of groups, one group of which is provided with a pressure-resistant tube.

[0007] As a preferred specific embodiment, the pneumatic telescopic assembly includes an inner pressure rod and an outer cylinder, the inner pressure rod is slidably embedded in the interior of the outer cylinder, the pressure-resistant tube is fixedly embedded in the interior of the outer cylinder, a female sleeve is rotatably embedded in the interior of the outer shell, a limiting retaining ring is provided inside the cam turntable, and one end of the outer surface of the coupling is fixedly connected to an automatic shaft.

[0008] The technical effect of adopting the above further solution is that the inner and outer cylinders provide stored force, which facilitates resetting of mode switching.

[0009] As a preferred embodiment, one end of the outer surface of the automatic shaft is rotatably connected to a slip ring, and one end of the outer surface of the slip ring is rotatably connected to a sub-shaft, and the automatic shaft, sub-shaft and slip ring are respectively slidably embedded in the interior of the limiting clamping ring.

[0010] The technical effect of adopting the above-mentioned further solution is: replacing the original single shaft with two rotating connected shafts, thereby improving the switching convenience while ensuring the switching stability.

[0011] As a preferred specific implementation manner, the sub-shaft is slidably embedded in the interior of the female sleeve, and one end of the outer surface of the sub-shaft is fixedly connected to the optical axis.

[0012] The technical effect of adopting the above-mentioned further solution is that the optical axis is used to receive the squeeze push and perform mode switching, which is more labor-saving than the traditional solution and will not reverse and fall out of the hand when rotating.

[0013] As a preferred embodiment, a threaded cylinder and an anti-rotation cylinder are fixedly embedded in the interior of the operating cylinder, and an anti-rotation groove is opened in the interior of the anti-rotation cylinder.

[0014] The technical effect of adopting the above further solution is that the anti-rotation groove avoids the change of the rotation output angle of the mode adjustment.

[0015] As a preferred embodiment, the internal thread of the threaded barrel is embedded with a threaded disc, a plurality of L-shaped multi-section rods are fixedly installed on the side of the threaded disc away from the sub-axis, and a rotating piece is rotatably installed on one end of the outer surface of the threaded barrel.

[0016] The technical effect of adopting the above further solution is that the telescopic effect of the L-shaped multi-section rod avoids jamming during adjustment.

[0017] As a preferred specific implementation manner, the L-shaped multi-section rod is fixedly connected to the rotating piece, and a plurality of L-shaped multi-section plates are fixedly mounted on one end of the outer surface of the operating cylinder.

[0018] The technical effect of adopting the above further solution is: the L-shaped multi-section plate can also avoid jamming during mode switching adjustment.

[0019] As a preferred embodiment, one end of the outer surface of the plurality of L-shaped multi-section plates is fixedly connected to an outer disk, an inner ring is rotatably embedded inside the outer disk, and a multi-section cross card is fixedly installed on the side of the inner ring close to the sub-axis.

[0020] The technical effect of adopting the above further solution is that the design of the inner and outer layers ensures that the internal rotation is not affected by the outside.

[0021] As a preferred embodiment, a multi-section column is fixedly mounted on one side of the inner ring close to the sub-shaft, and a cross groove is provided on one end of the sub-shaft close to the outer disk.

[0022] The technical effect of adopting the above further solution is that the cross groove is used for rotational connection.

[0023] As a preferred embodiment, the multi-section column is rotatably embedded in the bottom of the inner wall of the cross slot, and a second spring is movably sleeved on the outer surface of the multi-section column.

[0024] The technical effect of adopting the above further solution is that the second spring prevents damage to the equipment caused by improper rotation.

[0025] Compared with the prior art, the advantages and positive effects of the present invention are:

[0026] The present invention solves the problem in the prior art that when the automatic mode has been switched, manual adjustment may damage the switching device because the manually controlled rotating shaft is related to the power output of the motor.

[0027] According to the present invention, during the manual to automatic switching process, the pressure during switching compresses the internal pressure rod at one end, and transfers the internal gas to the internal pressure rod at the other end through the pressure-resistant tube. The pressure of the internal pressure rod at the other end increases, which facilitates the switching from manual to automatic mode and saves more effort.

[0028] In the present invention, the contact pressure sensor detects the current pressure value and presets a threshold value. When the monitored pressure is within the preset range, the alarm display LED light displays the street light, and a flashing alarm is performed when the threshold value is exceeded. The threshold range corresponds to the pressure when the automatic shaft is completely pushed out of the limit clamp and the upper limit of the pressure tolerance of the outer cylinder. When the green light is on, the rotation of the rotary plate can be stopped, and the mode switch from automatic to manual is completed. The switch is more stable and there are intuitive prompts.

[0029] The present invention, when switching from automatic to manual mode, rotates the rotating piece, and the connected threaded disk is driven by the L-shaped multi-section rod to rotate. The threads of the threaded disk are embedded in the inner wall of the threaded barrel. After rotation, the threaded disk moves toward the sub-shaft, and then pushes the optical axis and the sub-shaft to move in the direction of the cam turntable, pushing out the automatic shaft that was originally partially stuck in the limiting clamp ring, and completely filling the interior of the limiting clamp ring with the sub-shaft. The anti-rotation groove inside the operating barrel effectively avoids possible twisting when the threaded disk rotates and moves, ensuring that the angle of the sub-shaft does not change, and avoiding twisting of the cam turntable. At this time, the motor output shaft inside the mounting shell is squeezed, pressing the entire motor to move in the extrusion direction, and the rotation mode is automatically switched through the thread, and there will be no accidental reset, which is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the external structure of a dual power automatic switching device for power transformation and distribution according to the present invention;

[0031] Figure 2 This is a schematic diagram of the internal structure of a dual power automatic switching device for power transformation and distribution according to the present invention;

[0032] Figure 3 This is an internal side view of a dual power automatic switching device for power transformation and distribution according to the present invention;

[0033] Figure 4 This is a schematic diagram of the power drive position structure of a dual power automatic switching device for power transformation and distribution according to the present invention;

[0034] Figure 5 This is a structural diagram of a pressure reset portion of a dual power automatic switching device for power transformation and distribution according to the present invention;

[0035] Figure 6 This is a schematic diagram of the optical axis position structure of a dual power automatic switching device for power conversion and distribution of the present invention;

[0036] Figure 7 This is a schematic diagram of the position structure of a limit clamp ring of a dual power automatic switching device for power transformation and distribution of the present invention;

[0037] Figure 8 This is a schematic structural diagram of a dual-axis connection portion of a dual-power automatic switching device for power transformation and distribution according to the present invention;

[0038] Figure 9 This is a schematic diagram of the internal structure of an operating cylinder of a dual power automatic switching device for power transformation and distribution according to the present invention;

[0039] Figure 10 This is a structural schematic diagram of the threaded disk position of a dual power supply automatic switching device for power transformation and distribution of the present invention.

[0040] Legend:

[0041] 1. Housing; 2. Secondary power supply; 3. Main power supply; 4. Operating cylinder; 401. Threaded cylinder; 402. Anti-rotation cylinder; 422. Anti-rotation groove; 403. Threaded disk; 431. L-shaped multi-section rod; 432. Rotating plate; 404. L-shaped multi-section plate; 405. Outer disk; 451. Inner ring; 452. Multi-section column; 453. Cross card; 454. Second spring; 5. Cam disk; 501. First slide Block; 502, second slider; 6, mounting shell; 601, slide plate; 602, spring; 603, pressure sensor; 7, motor; 701, coupling; 8, pneumatic telescopic assembly; 801, inner pressure rod; 802, outer cylinder; 9, pressure-resistant tube; 10, limit clamp; 11, automatic shaft; 12, sub-shaft; 1201, female sleeve; 1202, optical axis; 1203, cross slot; 13, slip ring. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] See also Figure 1-10 The present invention provides a technical solution: a dual power automatic switching device for power transformation and distribution, comprising: a shell 1, an operating cylinder 4 is fixedly installed on the top of the outer surface of the shell 1, a secondary power supply 2 and a main power supply 3 are fixedly connected on both sides of the outer surface of the shell 1, a mounting shell 6 is fixedly installed on one side of the inner wall of the shell 1, a first slider 501 and a second slider 502 are provided inside the shell 1, the first slider 501 and the second slider 502 are respectively slidably installed inside the shell 1, a cam rotary plate 5 is provided inside the shell 1, a motor 7 is provided inside the mounting shell 6, the output shaft of the motor 7 is fixedly connected with a coupling 701, a plurality of slides 601 are fixedly installed on both sides of the outer surface of the mounting shell 6, the motor 7 is slidably embedded in the inside of the slides 601, a plurality of springs 602 are fixedly installed on both sides of the inner wall of the mounting shell 6, a plurality of pneumatic telescopic components 8 are fixedly installed on both sides of the inner wall of the mounting shell 6, a pressure sensor 603 is fixedly installed on one side of the inner wall of the mounting shell 6, the plurality of pneumatic telescopic components 8 are evenly divided into a plurality of groups, one group of which is provided with a pressure-resistant tube 9.

[0044] This device is mainly for dual power mode switching, that is, mode switching between manual and automatic. The dual power automatic switching device equipped on the existing substation and distribution equipment is usually equipped with two circuit breakers with accessories, a set of transmission mechanisms including motor and manual control modes, and a controller. The two circuit breakers automatically switch the standing and backup power supplies and ensure that only one circuit breaker is in the closed state to ensure continuous power supply to important places. However, since the manual control shaft is related to the power output of the motor, when manual power switching is required, in addition to the switching operation, the torque of the motor rotating coil must be overcome, resulting in manual control switching. Difficulties, especially for some high-power dual-power automatic switching switches, which require the cooperation of multiple people to complete manual control operations. In addition, for the state that has been switched to automatic mode, since the manually controlled shaft is related to the power output of the motor, manual twisting and adjustment at this time will cause damage to the switching device. Although most dual-power automatic switching devices are now equipped with additional locks, which can avoid such problems to a certain extent after being locked, they cannot avoid the problem of manual damage in automatic mode from the root. Based on this, the applicant proposed a dual-power automatic switching device for power distribution that can be turned in an automatic state without any effect, and is more labor-saving and flexible in mode switching.

[0045] The housing 1 is equipped with a dual power automatic transfer switch controller and an alarm display LED. In actual use, the operating cylinder 4 is opened. In the automatic mode, the drive mechanism motor 7 drives the cam disc 5 to rotate. The cam disc 5 is provided with a drive roller, which acts on the driving surfaces of the first slider 501 and the second slider 502 to cause linear motion, thereby driving the circuit breaker handle to move, effectively ensuring that only one of the two circuit breakers is in the closed state. This is common knowledge and will not be elaborated here. See CN1632896A for details.

[0046] The cam turntable 5 has been optimized on the original basis, and the internal shaft that drives its rotation is replaced by the automatic shaft 11, sub-shaft 12 and slip ring 13. The rotation of the automatic shaft 11 and the sub-shaft 12 does not affect each other, but in automatic mode, a part of the length of the sub-shaft 12 is stuck inside the limit clamp 10, and the rest of the limit clamp 10 is filled by the automatic shaft 11, and the two rotate synchronously.

[0047] When switching from automatic to manual mode, the rotating piece 432 is rotated, and the connected threaded disk 403 is driven by the L-shaped multi-section rod 431 to rotate. The threaded disk 403 is threadedly embedded in the inner wall of the threaded cylinder 401. After rotation, the threaded disk 403 moves toward the direction of the sub-shaft 12, and then pushes the optical axis 1202 and the sub-shaft 12 to move in the direction of the cam turntable 5, pushing out the automatic shaft 11 that was originally partially stuck in the limit clamping ring 10, and the interior of the limit clamping ring 10 is completely filled by the sub-shaft 12. The anti-rotation groove 422 inside the operating cylinder 4 effectively avoids possible twisting when the threaded disk 403 rotates and moves, ensuring that the angle of the sub-shaft 12 does not change, and avoiding twisting of the cam turntable 5. At this time, the output shaft of the motor 7 inside the mounting shell 6 is squeezed, pressing the entire motor 7 to move in the squeezing direction, and the contact pressure sensor 603 detects the current pressure value and presets a threshold value. When the monitored pressure is within the preset range, an alarm is displayed The LED light shows the street light, and a flashing alarm is issued when the threshold is exceeded. The threshold range corresponds to the pressure when the automatic shaft 11 is completely pushed out of the limit clamp 10 and the pressure upper limit of the outer cylinder 802. When the light is green, the rotation of the rotary plate 432 can be stopped. At this time, the mode switch from automatic to manual is complete. The pressure during switching compresses the internal pressure rod 801 at one end and transfers the internal gas to the internal pressure rod 801 at the other end through the pressure-resistant tube 9. The pressure of the internal pressure rod 801 at the other end increases, which facilitates the switch from manual to automatic mode and saves more effort. When switching, you only need to reverse the rotary plate 432, the sub-shaft 12 and the optical axis 1202 lose one end of the pressure, and the automatic shaft 11 is subjected to the reset thrust of the spring 602 and the internal pressure of the internal pressure rod 801, pushing the automatic shaft 11 toward the sub-shaft 12, and then filling it into the inside of the limit clamp 10, resetting, and completing the switch from manual to automatic, which is more flexible and labor-saving.

[0048] When switching the circuit in manual mode, it is necessary to press the inner ring 451. Here, the L-shaped multi-section plate 404 is retractable. The pressed inner ring 451 drives the section of the two cross cards 453 close to the sub-shaft 12 to be inserted into the cross groove 1203, connecting the inner ring 451 to the sub-shaft 12. At this time, the circuit can be switched by rotating it again. The gap between the two cross cards 453 here is greater than the thickness of the threaded disk 403 to avoid jamming during rotation, and a second spring 454 is provided on the multi-section column 452. When not pressed, the second spring 454 will pop out the cross card 453, that is, push out the inner ring 451. At this time, even if the inner ring 451 is rotated in time, it cannot drive the sub-shaft 12 to rotate, and idling will not cause damage.

[0049] See also Figure 1-10The pneumatic telescopic assembly 8 includes an inner pressure rod 801 and an outer cylinder 802. The inner pressure rod 801 is slidably embedded in the inner part of the outer cylinder 802. The pressure-resistant tube 9 is fixedly embedded in the inner part of the outer cylinder 802. A female sleeve 1201 is rotatably embedded in the inner part of the outer shell 1. A limiting retaining ring 10 is provided inside the cam turntable 5. One end of the outer surface of the coupling 701 is fixedly connected to an automatic shaft 11.

[0050] See also Figure 1-10 One end of the outer surface of the automatic shaft 11 is rotatably connected to a slip ring 13, and one end of the outer surface of the slip ring 13 is rotatably connected to a sub-shaft 12. The automatic shaft 11, the sub-shaft 12, and the slip ring 13 are respectively slidably embedded in the interior of the limit clamp 10.

[0051] See also Figure 1-10 The sub-shaft 12 is slidably embedded in the interior of the female sleeve 1201 , and one end of the outer surface of the sub-shaft 12 is fixedly connected to the optical axis 1202 .

[0052] See also Figure 1-10 A threaded cylinder 401 and an anti-rotation cylinder 402 are fixedly embedded in the interior of the operating cylinder 4, and an anti-rotation groove 422 is opened in the interior of the anti-rotation cylinder 402.

[0053] See also Figure 1-10 The internal thread of the threaded barrel 401 is embedded with a threaded disc 403, and a plurality of L-shaped multi-section rods 431 are fixedly installed on the side of the threaded disc 403 away from the sub-shaft 12. A rotating piece 432 is rotatably installed on one end of the outer surface of the threaded barrel 401.

[0054] See also Figure 1-10 The L-shaped multi-section rod 431 is fixedly connected to the rotating piece 432, and a plurality of L-shaped multi-section plates 404 are fixedly installed on one end of the outer surface of the operating cylinder 4.

[0055] See also Figure 1-10 One end of the outer surface of multiple L-shaped multi-section plates 404 is fixedly connected to an outer disk 405, and an inner ring 451 is rotatably embedded inside the outer disk 405. A multi-section cross card 453 is fixedly installed on the side of the inner ring 451 close to the sub-shaft 12.

[0056] See also Figure 1-10 A multi-section column 452 is fixedly installed on the side of the inner ring 451 close to the sub-shaft 12, and a cross groove 1203 is opened on the end of the sub-shaft 12 close to the outer disk 405.

[0057] See also Figure 1-10 The multi-section column 452 is rotatably embedded in the bottom of the inner wall of the cross slot 1203 , and a second spring 454 is movably sleeved on the outer surface of the multi-section column 452 .

[0058] How it works

[0059] This device is mainly for dual power mode switching, that is, mode switching between manual and automatic. The dual power automatic switching device equipped on the existing substation and distribution equipment is usually equipped with two circuit breakers with accessories, a set of transmission mechanisms including motor and manual control modes, and a controller. The two circuit breakers automatically switch the standing and backup power supplies and ensure that only one circuit breaker is in the closed state to ensure continuous power supply to important places. However, since the manual control shaft is related to the power output of the motor, when manual power switching is required, in addition to the switching operation, the torque of the motor rotating coil must be overcome, resulting in manual control switching. Difficulties, especially for some high-power dual-power automatic switching switches, which require the cooperation of multiple people to complete manual control operations. In addition, for the state that has been switched to automatic mode, since the manually controlled shaft is related to the power output of the motor, manual twisting and adjustment at this time will cause damage to the switching device. Although most dual-power automatic switching devices are now equipped with additional locks, which can avoid such problems to a certain extent after being locked, they cannot avoid the problem of manual damage in automatic mode from the root. Based on this, the applicant proposed a dual-power automatic switching device for power distribution that can be turned in an automatic state without any effect, and is more labor-saving and flexible in mode switching.

[0060] The housing 1 is equipped with a dual power automatic transfer switch controller and an alarm display LED. In actual use, in the automatic mode, the drive mechanism motor 7 drives the cam disc 5 to rotate. The cam disc 5 is provided with a drive roller, which acts on the driving surfaces of the first slider 501 and the second slider 502 to cause linear motion, thereby driving the circuit breaker handle to move, effectively ensuring that only one of the two circuit breakers is in the closed state. This is common knowledge and will not be elaborated here. For details, see CN1632896A.

[0061] The cam turntable 5 has been optimized on the original basis, and the internal shaft that drives its rotation is replaced by the automatic shaft 11, sub-shaft 12 and slip ring 13. The rotation of the automatic shaft 11 and the sub-shaft 12 does not affect each other, but in automatic mode, a part of the length of the sub-shaft 12 is stuck inside the limit clamp 10, and the rest of the limit clamp 10 is filled by the automatic shaft 11, and the two rotate synchronously.

[0062] When switching from automatic to manual mode, the rotating piece 432 is rotated, and the connected threaded disk 403 is driven by the L-shaped multi-section rod 431 to rotate. The threaded disk 403 is threadedly embedded in the inner wall of the threaded cylinder 401. After rotation, the threaded disk 403 moves toward the direction of the sub-shaft 12, and then pushes the optical axis 1202 and the sub-shaft 12 to move toward the cam turntable 5, pushing out the automatic shaft 11 that was originally partially stuck in the limit clamping ring 10, and the interior of the limit clamping ring 10 is completely filled by the sub-shaft 12. The anti-rotation groove 422 inside the operating cylinder 4 effectively avoids possible twisting when the threaded disk 403 rotates and moves, ensuring that the angle of the sub-shaft 12 does not change, and avoiding twisting of the cam turntable 5. At this time, the output shaft of the motor 7 inside the mounting shell 6 is squeezed, pressing the entire motor 7 to move in the squeezing direction, and the contact pressure sensor 603 detects the current pressure value and presets a threshold value. When the monitored pressure is within the preset range, an alarm is displayed The LED light displays the street light, and a flashing alarm is triggered when the threshold is exceeded. The threshold range corresponds to the pressure when the automatic shaft 11 is completely pushed out of the limit clamp 10 and the upper limit of the pressure of the outer cylinder 802. When the light is green, the rotation of the rotary plate 432 can be stopped. At this time, the mode switch from automatic to manual is complete. The pressure during switching compresses the internal pressure rod 801 at one end and transfers the internal gas to the internal pressure rod 801 at the other end through the pressure-resistant tube 9. The pressure of the internal pressure rod 801 at the other end increases, which facilitates the switch from manual to automatic mode and saves more effort. When switching, you only need to reverse the rotary plate 432, the sub-shaft 12 and the optical axis 1202 lose the low pressure at one end, and one end of the automatic shaft 11 is subjected to the reset thrust of the spring 602 and the internal pressure of the internal pressure rod 801, pushing the automatic shaft 11 toward the sub-shaft 12, and then filling it into the inside of the limit clamp 10, resetting, and completing the switch from manual to automatic, which is more flexible and labor-saving.

[0063] When switching the circuit in manual mode, it is necessary to press the inner ring 451. Here, the L-shaped multi-section plate 404 is retractable. The pressed inner ring 451 drives the section of the two cross cards 453 close to the sub-shaft 12 to be inserted into the cross groove 1203, connecting the inner ring 451 to the sub-shaft 12. At this time, the circuit can be switched by rotating it again. The gap between the two cross cards 453 here is larger than the distance behind the threaded disk 403 to avoid jamming during rotation, and a second spring 454 is provided on the multi-section column 452. When not pressed, the second spring 454 will pop out the cross card 453, that is, push out the inner ring 451. At this time, even if the inner ring 451 is rotated in time, it cannot drive the sub-shaft 12 to rotate, and idling will not cause damage.

[0064] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other form. Any person skilled in the art may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiments made in accordance with the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A dual power automatic switching device for power transformation and distribution, comprising: The housing (1) is characterized in that: an operating cylinder (4) is fixedly installed on the top of the outer surface of the housing (1), a secondary power supply (2) and a main power supply (3) are fixedly connected to both sides of the outer surface of the housing (1), a mounting shell (6) is fixedly installed on one side of the inner wall of the housing (1), a first slider (501) and a second slider (502) are provided inside the housing (1), the first slider (501) and the second slider (502) are respectively slidably installed inside the housing (1), a cam disc (5) is provided inside the housing (1), a motor (7) is provided inside the mounting shell (6), and the motor The output shaft of (7) is fixedly connected to a coupling (701), a plurality of slides (601) are fixedly installed on both sides of the outer surface of the mounting shell (6), the motor (7) is slidably embedded in the interior of the slide (601), a plurality of springs (602) are fixedly installed on both sides of the inner wall of the mounting shell (6), a plurality of pneumatic telescopic components (8) are fixedly installed on both sides of the inner wall of the mounting shell (6), a pressure sensor (603) is fixedly installed on one side of the inner wall of the mounting shell (6), and the plurality of pneumatic telescopic components (8) are respectively divided into a plurality of groups, one of which is provided with a pressure-resistant tube (9); One end of the outer surface of the automatic shaft (11) is rotatably connected to a slip ring (13), and one end of the outer surface of the slip ring (13) is rotatably connected to a sub-shaft (12). The automatic shaft (11), the sub-shaft (12), and the slip ring (13) are respectively slidably embedded in the interior of the limiting clamping ring (10); The sub-shaft (12) is slidably embedded in the interior of the female sleeve (1201), and one end of the outer surface of the sub-shaft (12) is fixedly connected to the optical axis (1202); The L-shaped multi-section rod (431) is fixedly connected to the rotating plate (432), and a plurality of L-shaped multi-section plates (404) are fixedly mounted on one end of the outer surface of the operating cylinder (4); One end of the outer surface of the plurality of L-shaped multi-section plates (404) is fixedly connected to an outer disk (405), an inner ring (451) is rotatably embedded inside the outer disk (405), and a multi-section cross card (453) is fixedly installed on one side of the inner ring (451) close to the sub-shaft (12); a second spring (454) is movably sleeved on the outer surface of the multi-section column (452); When switching the circuit in manual mode, the inner ring (451) needs to be pressed, and then the rotating piece (432) is rotated to switch the circuit. When not pressed, the second spring (454) will pop out the multi-section cross card (453), that is, push out the inner ring (451). At this time, even if the inner ring (451) is rotated, the sub-shaft (12) cannot be driven to rotate.

2. The dual power automatic switching device for power transformation and distribution according to claim 1, characterized in that: The pneumatic telescopic assembly (8) comprises an inner pressure rod (801) and an outer cylinder (802), wherein the inner pressure rod (801) is slidably embedded in the inner part of the outer cylinder (802), the pressure-resistant tube (9) is fixedly embedded in the inner part of the outer cylinder (802), a female sleeve (1201) is rotatably embedded in the inner part of the outer shell (1), a limiting retaining ring (10) is provided in the inner part of the cam turntable (5), and one end of the outer surface of the coupling (701) is fixedly connected to an automatic shaft (11).

3. The dual power automatic switching device for power transformation and distribution according to claim 2, characterized in that: A threaded cylinder (401) and an anti-rotation cylinder (402) are fixedly embedded in the interior of the operating cylinder (4), and an anti-rotation groove (422) is provided in the interior of the anti-rotation cylinder (402).

4. The dual power automatic switching device for power transformation and distribution according to claim 3, characterized in that: The internal threads of the threaded barrel (401) are embedded with a threaded disc (403), a plurality of L-shaped multi-section rods (431) are fixedly mounted on one side of the threaded disc (403) away from the sub-shaft (12), and a rotating plate (432) is rotatably mounted on one end of the outer surface of the threaded barrel (401).

5. The dual power automatic switching device for power transformation and distribution according to claim 4, characterized in that: A multi-section column (452) is fixedly mounted on one side of the inner ring (451) close to the sub-shaft (12), and a cross groove (1203) is provided on one end of the sub-shaft (12) close to the outer disk (405).

6. The dual power automatic switching device for power transformation and distribution according to claim 5, characterized in that: The multi-section column (452) is rotatably embedded in the bottom of the inner wall of the cross groove (1203).

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