CN116469715A - Rotary switch capable of free tripping - Google Patents
Rotary switch capable of free tripping Download PDFInfo
- Publication number
- CN116469715A CN116469715A CN202310489972.0A CN202310489972A CN116469715A CN 116469715 A CN116469715 A CN 116469715A CN 202310489972 A CN202310489972 A CN 202310489972A CN 116469715 A CN116469715 A CN 116469715A
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- rotating shaft
- energy storage
- state
- storage element
- driving wheel
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- 238000004146 energy storage Methods 0.000 claims abstract description 137
- 230000007246 mechanism Effects 0.000 claims abstract description 81
- 230000009471 action Effects 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000014509 gene expression Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/14—Operating parts, e.g. turn knob
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Abstract
The invention relates to a rotary switch capable of free tripping, which comprises a shell, an operating mechanism, a second rotating shaft, a second energy storage element and a driving mechanism, wherein a matching structure is arranged between the second rotating shaft and the operating mechanism, the matching structure is provided with an operating state enabling the second rotating shaft and the operating mechanism to form a linkage relation and a free tripping state enabling the second rotating shaft and the operating mechanism to release the linkage relation, and the matching structure is in the free tripping state when and only when the second rotating shaft is in a closed position and the operating mechanism is in an action process of switching from the closed state to the open state. On the basis of the existing structure capable of rapidly tripping, the second rotating shaft driven by the knob and the operating mechanism are separated, and the matching structure is arranged between the second rotating shaft and the operating mechanism, the operating mechanism can be driven to change in the on-off state by rotating the second rotating shaft through the matching structure, and when the operating mechanism is separated from the second rotating shaft driven by the knob under the energy release effect of the second energy storage element, the purpose of free action of the operating mechanism is realized.
Description
Technical Field
The invention relates to a freely releasable rotary switch.
Background
The applicant discloses in various prior patents CN202110292185.8, CN202110382428.7, CN202111031928.2, CN202110444990.8, CN202111031928.2, etc. a rotary switch capable of being rapidly opened, which has the common point that an energy storage element is arranged on the basis of the original rotary switch operating mechanism, when the energy storage element stores energy, the operating mechanism of the rotary switch can cooperate with a knob to normally switch to open and close, and the energy storage element keeps an energy storage state, and when the energy storage element releases energy, the operating mechanism can be driven to be disconnected, and the structure still has the problems, and the following concrete steps: under the fault state, the isolating switch of the structure enables the energy storage mechanism to release energy, and in the process of driving the operating mechanism to be disconnected, the operating mechanism and the knob are linked, namely, the knob participates in the whole quick action process, and when the knob is blocked or blocked, the action of the switch can be influenced, so that the switch cannot complete the automatic circuit breaking.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings in the prior art and provides a freely-tripped rotary switch.
The technical scheme adopted by the invention is as follows: a rotary switch capable of tripping freely comprises a shell, an operating mechanism, a second rotating shaft, a second energy storage element and a driving mechanism, wherein the operating mechanism is in an open state and a closed state; the second rotating shaft penetrates out of the shell for rotating operation and has an opening position and a closing position; the second energy storage element is provided with an energy storage state and an energy release state, when the second energy storage element is in the energy storage state, the second rotating shaft can rotate to drive the operating mechanism to switch between an open state and a closed state, the second energy storage element is in the energy storage state, and when the second energy storage element is in the energy storage state and is converted into the energy release state, the second energy storage element can drive the operating mechanism in the closed state to switch to the energy storage state; the second energy storage element in the energy storage state can be converted into an energy release state through the driving mechanism;
the second rotating shaft and the operating mechanism are provided with a matching structure, the matching structure is provided with an operating state enabling the second rotating shaft and the operating mechanism to form a linkage relation and a free tripping state enabling the second rotating shaft and the operating mechanism to release the linkage relation, and the matching structure is in the free tripping state when the second rotating shaft is in a closed position and the operating mechanism is in an action process of switching from the closed state to the open state.
The shell is internally provided with an upper cavity and a lower cavity which are separated by a middle partition board, the second rotating shaft is arranged in the upper cavity, the upper cavity is internally provided with a middle driving wheel, the middle driving wheel can rotate relative to the shell and has an opening position and a closing position, and the middle driving wheel is in linkage fit with the operating mechanism to enable the middle driving wheel to rotate so as to drive the operating mechanism to switch between an opening state and a closing state;
the cooperation structure is arranged between the second rotating shaft and the middle driving wheel, the cooperation structure is provided with an operation state enabling the second rotating shaft and the middle driving wheel to form a linkage relation and a free tripping state enabling the second rotating shaft and the middle driving wheel to release the linkage relation, and when the second rotating shaft is in a closed position and the middle driving wheel is in a path from the closed position to the open position, the cooperation structure is in the free tripping state.
The matching structure is composed of a unidirectional linkage matching structure and an interlocking structure, wherein the unidirectional linkage matching structure and the interlocking structure are arranged between the second rotating shaft and the middle driving wheel;
under the action of the unidirectional linkage matching structure, when the second rotating shaft rotates from the opening position to the closing position and the intermediate driving wheel rotates from the closing position to the opening position, the second rotating shaft and the intermediate driving wheel form a relative rotation relationship, and when the second rotating shaft rotates from the closing position to the opening position and the intermediate driving wheel rotates from the opening position to the closing position, the second rotating shaft and the intermediate driving wheel form a linkage relationship;
the interlocking structure is provided with a locking state for enabling the second rotating shaft and the middle driving wheel to form a circumferential linkage matching relationship and an unlocking state for enabling the second rotating shaft and the middle driving wheel to release the circumferential linkage matching relationship, and is in the unlocking state if and only if the operating mechanism is in the closed state.
The unidirectional linkage matching structure comprises a unidirectional linkage push block which is arranged eccentrically on the second rotating shaft and an arc-shaped chute which is arranged on the middle driving wheel and is arranged correspondingly, and the unidirectional linkage push block is arranged on the arc-shaped chute.
The interlocking structure comprises a tilting rod hinged and fixed on the middle driving wheel through a hinge shaft, an interlocking locking groove positioned on the second rotating shaft, an elastic acting piece acting on the tilting rod and a tripping ejector rod matched with the tilting rod, wherein the tilting rod is partially inserted into the interlocking locking groove to enable the second rotating shaft and the middle driving wheel to form a circumferential linkage matching relationship only under the action of the elastic acting piece, the tripping ejector rod is in limit matching with the middle partition plate to enable the tilting rod to slide along the axial direction of the second rotating shaft, and a pushing block is fixedly arranged on the operating mechanism corresponding to the position below the tripping ejector rod, and pushes the tripping ejector rod to enable the tilting rod to leave the interlocking locking groove when the operating swivel seat moves to a closed position.
The lower surface of the trip ejector rod is provided with a fourth guide surface, and when the operation swivel mount moves to the closed position, the pushing block moves along the fourth guide surface to enable the trip ejector rod to move; the inner side and the outer side of the unbuckling ejector rod are provided with third limiting blocks, the middle shell is provided with unbuckling through grooves for installing the unbuckling ejector rod, and limiting grooves matched with the third limiting blocks are arranged in the unbuckling through grooves.
The elastic acting piece is a torsion spring wound on the hinge shaft.
And a transmission structure is arranged between the second energy storage element and the intermediate transmission wheel, and when the second energy storage element is in an energy storage state and is converted into an energy release state, the second energy storage element can drive the intermediate transmission wheel to enable the operating mechanism in a closed state to be switched into an open state.
The operation mechanism comprises a first rotating shaft, an operation swivel seat, a first energy storage element and a stopping device, wherein the first energy storage element is arranged between the first rotating shaft and the operation swivel seat and is used for driving the operation swivel seat to rotate, the stopping device is used for locking the operation swivel seat, the operation swivel seat is locked when the operation mechanism is in the open state and is in the closed state, the operation swivel seat is kept to be inactive, the first rotating shaft is rotated to enable the first rotating shaft to rotate from the position of the closed state to the position of the open state or rotate from the position of the open state to the position of the closed state, the stopping device is unlocked after the first energy storage element finishes energy storage, and the operation swivel seat rotates under the action of the first energy storage element; the pushing block is fixed on the operation swivel base; the first rotating shaft is in linkage fit with the middle transmission wheel in the circumferential direction.
The second rotating shaft is connected with a third energy storage element, the third energy storage element is provided with an energy release state corresponding to the second rotating shaft positioned at the opening position and an energy storage state corresponding to the second rotating shaft positioned at the closing position, and the second rotating shaft positioned at the closing position can be rotated to the opening position only under the action of the third energy storage element in the free tripping state.
The beneficial effects of the invention are as follows: on the basis of the existing structure capable of rapidly tripping, the second rotating shaft driven by the knob and the operating mechanism are separated, and the matching structure is arranged between the second rotating shaft and the operating mechanism, the operating mechanism can be driven to change in the on-off state by rotating the second rotating shaft through the matching structure, and when the operating mechanism is separated from the second rotating shaft driven by the knob under the energy release effect of the second energy storage element, the purpose of free action of the operating mechanism is realized.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that it is within the scope of the invention to one skilled in the art to obtain other drawings from these drawings without inventive faculty.
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is an exploded view of one embodiment of the present invention;
FIG. 3 is a schematic view of a stop member according to an embodiment of the present invention;
FIG. 4 is a schematic view illustrating a structure of a first shaft according to an embodiment of the invention;
FIG. 5 is a schematic diagram illustrating a first energy storage element according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating a structure of an operation swivel base according to an embodiment of the invention;
FIG. 7 is an exploded view of an energy storage mechanism according to one embodiment of the present invention;
FIG. 8 is a schematic diagram illustrating a structure of a second shaft according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of an intermediate drive wheel in an embodiment of the present invention;
FIG. 10 is an exploded view of an intermediate drive wheel in one embodiment of the present invention;
FIG. 11 is a schematic diagram of the second shaft engaging an intermediate drive wheel in accordance with one embodiment of the present invention;
FIG. 12 is a schematic view showing the structure of a trip plunger according to an embodiment of the present invention;
FIG. 13 is a schematic view of a rack gear according to an embodiment of the present invention;
FIG. 14 is a schematic view of the structure of the middle shell according to an embodiment of the present invention;
FIG. 15 is a schematic view of a power lock block according to an embodiment of the present invention;
fig. 16-19 are schematic diagrams illustrating the internal structure of the switch in the tripped open state, the closed state, the stored energy open state, and the free tripped state, respectively.
In the figure, 1, a housing; 101, an upper housing; 102, a middle shell; 103, a lower housing; 104, a rack limiting chute; 105, a torsional spring limiting block; 109, unbuckling the through groove; 1091, limit grooves; 2, a stop piece; 201, a first steering limit elastic block; 202, a second steering limit elastic block; 203, first unlocking the push tab; 204, a second unlocking pushing bump; 205, linkage grooves; 206, tripping the bump; 207, resetting the groove; 3, a first rotating shaft; 301, unlocking a push block; 302, positioning columns; 303, a first drive arm; 304, linkage convex blocks; 305, a second guide surface; 306, linkage action surface; 4, a first energy storage element; 401, a first torsion arm; 402, a second torsion arm; 5, operating the swivel base; 501, a first limiting block; 502, a second limiting block; 503, a second drive arm; 504, positioning the ring seat; 505, a third guide surface; 506, pushing the block; 6, an electromagnetic driving mechanism; 7, a second energy storage element; 8, an upper rotating shaft assembly; 801, a gear portion; 804, a second shaft; 805, an intermediate drive wheel; 806, unidirectional linkage pushing blocks; 807, an arcuate chute; 808, tilting the rod; 809, interlocking lock grooves; 8010, elastic action member; 9, a rack; 901, releasing energy pushing blocks; 10, an energy storage locking block; 1001, an energy storage lock groove; 1002, a trip pushing portion; 13, tripping a connecting rod; 14, unbuckling the ejector rod; 1401, fourth guide surface; 1402, a third stopper; 15, a third energy storage element.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent.
It should be noted that, in the embodiments of the present invention, all the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the "first" and "second" are only used for convenience of expression, and should not be construed as limiting the embodiments of the present invention, and the following embodiments are not described one by one.
The terms of direction and position in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer only to the direction or position of the drawing. Accordingly, directional and positional terms are used to illustrate and understand the invention and are not intended to limit the scope of the invention.
The structure shown in fig. 1-19 is a specific structure of an embodiment of the present invention, and is mainly a specific structure modified from the structure disclosed in the published patent CN202111031928.2 according to the technical scheme of the present invention.
As shown in fig. 1 and 2, a rotary switch comprises a housing 1, an operating mechanism, an electromagnetic driving mechanism and an energy storage mechanism. The shell comprises an upper shell 101, a middle shell 102 and a lower shell 103 which are sequentially arranged from top to bottom, wherein an upper cavity is formed between the upper shell and the middle shell 102, a lower cavity is formed between the middle shell 102 and the lower shell, a middle partition plate for separating the upper cavity from the lower cavity is arranged on the middle shell 102, an operating mechanism is arranged in the lower cavity, and an energy storage mechanism is arranged in the upper cavity.
The structure of the driving mechanism is basically the same as that disclosed in the published patent CN 202111031928.2.
Specifically, the operating mechanism includes a stop member 2, a first rotating shaft 3, a first energy storage element 4 and an operating swivel base 5 which are sequentially arranged, the first rotating shaft 3 and the operating swivel base 5 are concentrically arranged, the first energy storage element 4 is arranged between the first rotating shaft 3 and the operating swivel base 5, two ends of the first energy storage element are respectively in butt fit with the first rotating shaft 3 and the operating swivel base 5, the center of the stop member 2 is in butt joint with the shell 1 and is not rotatable relative to the shell 1, as shown in fig. 3, the stop member 2 protrudes towards the direction of the operating swivel base 5 to form a first steering limit elastic block 201 and a second steering limit elastic block 202, as shown in fig. 6, the operating swivel base 5 protrudes towards the direction of the stop member 2 to form a first limit block 501 and a second limit block 502, when the operating mechanism is located at a closed/open position, the first steering limit elastic block 201 and the second steering limit elastic block 202 are respectively located at two sides of the first limit block 501/the second limit block 502, as shown in fig. 4, a push block 301 used for enabling the first steering limit elastic block 201 to be pushed up from the first rotating shaft 3 to the first steering limit elastic block 201, and the first steering limit elastic block 201 can be lifted up from the first steering limit elastic block 301 to be opened. One end of the first rotation shaft 3 passes through the stopper 2 and the housing for manual rotation operation on/off. The operation swivel mount 5 is used for being in linkage fit with the moving contact coaxial center of the multi-layer switch unit below the shell 1, and the rotation of the operation swivel mount 5 can drive the moving contact of the multi-layer switch unit below the shell 1 to simultaneously rotate to finish the switch action.
The inner wall of the housing 1 is provided with a linkage block, as shown in fig. 3, the stop member 2 is provided with a linkage groove 205 matched with the linkage block, the first steering stop block 201 and the second steering stop block 202 are respectively two relatively separated protrusions formed by end parts of support arms with certain elasticity on the periphery of the stop member 2, meanwhile, the lower side surfaces of the two relatively separated support arms on the periphery of the stop member 2 are respectively provided with a first unlocking pushing protrusion 203 and a second unlocking pushing protrusion 204 matched with a first unlocking block 301, and when the first unlocking block 301 slides to a position below the first unlocking pushing protrusion 203 or the second unlocking pushing protrusion 204, the corresponding first steering stop block 201 or second steering stop block 202 is correspondingly lifted. As shown in fig. 4, the first rotating shaft 3 is provided with a positioning column 302 for being in concentric positioning fit with the operation swivel base 5, a first driving arm 303 for being matched with a first torsion arm 401 of the first energy storage element 4, and an unlocking push block 301 for raising the second clamp spring 204, as shown in fig. 5, the first energy storage element 4 is an energy storage torsion spring and comprises a first torsion arm 401 and a second torsion arm 402; as shown in fig. 6, the operation swivel base 5 is provided with a first limiting block 501, a second limiting block 502, a second driving arm 503 for being matched with the second torsion arm 402 of the first energy storage element 4, and a positioning circular ring seat 504 for being concentrically inserted and positioned and matched with the positioning column 302.
The unlocking push block 301 cooperates with two relatively separated arms on the outer periphery of the stopper 2, and in at least part of the path of the first rotating shaft 3 from the closed state to the open state and from the open state to the closed state, the unlocking push block 301 slides along one side surface of the two arm approaching operation swivel mount 5, and when the first rotating shaft 3 from the closed state to the open state and from the open state to the closed state approaches the end point, the unlocking push block 301 is respectively positioned on the first unlocking push lug 203 and the second unlocking push lug 204 of the one side arm. Further, the two sides of the first unlocking pushing convex block 203 and the second unlocking pushing convex block 204 are both provided with reset grooves 207, when the unlocking pushing block 301 does not interact with the first unlocking pushing convex block 203 and the second unlocking pushing convex block 204, the unlocking pushing block 301 is positioned in the reset grooves 207, the unlocking pushing block 301 does not push the stop piece 2, and the stop piece 2 is prevented from being elastically weakened under the long-time pushing action.
In the process that the first rotating shaft 3 turns from opening to closing, the first torsion spring driving arm 303 of the first rotating shaft 3 drives the first torsion arm 401 to rotate, the first energy storage element 4 starts to store energy, the first unlocking block 301 is matched with the stop piece 2 in the rotating process, when the first rotating shaft 3 is close to turning to the closing position, the first unlocking block 301 rotates to a position below the first unlocking pushing lug 203, the first steering limiting block 201 is lifted, the operation swivel seat 5 is free at the moment, the first torsion spring driving arm is driven by the second torsion spring driving arm 503 to rotate to the closing state, and the opening process is reverse.
As shown in fig. 7, the energy storage mechanism includes an upper rotating shaft assembly 8, a second energy storage element 7, a rack 9 and an energy storage locking block 10, and further, the upper rotating shaft assembly 8 includes a second rotating shaft 804 and an intermediate driving wheel 805. The second rotating shaft 804 penetrates through the upper housing 101 for operating rotation, the intermediate driving wheel 805 penetrates through the middle housing 102 and is coaxially inserted into the first rotating shaft 3, so that the two are in circumferential linkage fit, and the upper end of the second rotating shaft 804 penetrates through the upper housing 101 to be connected with a manual operating handle or an electric operating mechanism so as to operate the first rotating shaft 3 and the upper rotating shaft assembly 8 to rotate between an open position and a closed position for switching.
A unidirectional linkage matching structure is arranged between the second rotating shaft 804 and the middle driving wheel 805. Under the action of the unidirectional linkage fit structure, when the second rotating shaft 804 rotates from the open position to the closed position and the intermediate driving wheel 805 rotates from the closed position to the open position, a relative rotation relationship is formed between the second rotating shaft 804 and the intermediate driving wheel, and when the second rotating shaft 804 rotates from the closed position to the open position and the intermediate driving wheel 805 rotates from the open position to the closed position, a linkage relationship is formed between the second rotating shaft 804 and the intermediate driving wheel.
Specifically, the unidirectional linkage matching structure includes an eccentrically disposed unidirectional linkage push block 806 disposed on the second rotating shaft 804, and a corresponding disposed arc chute 807 disposed on the intermediate driving wheel 805, where the unidirectional linkage push block 806 is disposed in the arc chute 807, as shown in fig. 11, when the unidirectional linkage push block 806 (i.e. the second rotating shaft 804) rotates counterclockwise or the arc chute 807 (i.e. the intermediate driving wheel 805) rotates clockwise, a linkage relationship is formed between the unidirectional linkage push block 806 (i.e. the second rotating shaft 804) rotates clockwise or the arc chute 807 (i.e. the intermediate driving wheel 805) rotates counterclockwise, and a relative rotation relationship is formed between the unidirectional linkage push block 806 and the arc chute 807, and the other is not driven to rotate. Specifically, the angle of the arc chute 807 is
An interlocking structure is arranged between the second rotating shaft 804 and the middle driving wheel 805, the interlocking structure has a locking state for enabling the second rotating shaft 804 and the middle driving wheel 805 to form a circumferential linkage fit relationship and an unlocking state for enabling the second rotating shaft 804 and the middle driving wheel 805 to release the circumferential linkage fit relationship, and the interlocking structure is in the unlocking state if and only if the operating mechanism is in the closed state.
The interlocking structure comprises a tilted rod 808 hinged and fixed on the middle driving wheel 805 through a hinge shaft, an interlocking locking groove 809 positioned on the second rotating shaft 804, an elastic acting piece 8010 acting on the tilted rod 808, and a trip ejector rod 14 matched with the tilted rod 808, wherein the tilted rod 808 is partially inserted into the interlocking locking groove 809 under the action of the elastic acting piece 8010 to enable the second rotating shaft 804 and the middle driving wheel 805 to form a circumferential interlocking matching relationship, and the trip ejector rod 14 is in plug-in matching with the middle shell 102 to enable the trip ejector rod 14 to slide along the axial direction of the second rotating shaft 804 only. The push block 506 is fixedly arranged at the periphery of the operation swivel base 5 corresponding to the position below the trip ejector rod 14, when the operation swivel base 5 moves to the closed position, the push block 506 moves to the position below the trip ejector rod 14 and pushes the trip ejector rod 14 so as to enable the trip ejector rod 14 to move upwards to enable the tilted rod 808 to leave the interlocking locking groove 809, the unlocking state is achieved, and after the push block 506 leaves, the trip ejector rod 14 moves downwards under the action of self gravity and under the thrust of the tilted rod 808.
As shown in fig. 12, the lower surface of the trip plunger 14 has a fourth guide surface 1401, and when the operating swivel base 5 is moved to the closed position, the push block 506 moves along the fourth guide surface 1401 to move the trip plunger 14 upward.
Further, as shown in fig. 12, a third limiting block 1402 is disposed on the inner and outer sides of the trip push rod 14, as shown in fig. 14, a trip through groove 109 for installing the trip push rod 14 is disposed on the middle housing 102, and a limiting groove 1091 matched with the third limiting block 1402 is disposed in the trip through groove 109, so that the trip push rod 14 can be kept in the trip through groove 109.
Further, as shown in fig. 10, the elastic acting element 8010 is a torsion spring wound around the hinge shaft.
As shown in fig. 14, the middle housing 102 is provided with a rack limiting chute 104, the rack 9 is limited in the rack limiting chute 104 and can slide along a straight line, as shown in fig. 9, the periphery of the middle driving wheel 805 is provided with a gear portion 801 along the circumference, the rack 9 is located at one side of the middle driving wheel 805 and keeps meshed with the gear portion 801, and during the rotation switching process between the opening position and the closing position of the middle driving wheel 805, the rack 9 slides along the straight line between a first rack position (corresponding to the opening position of the middle driving wheel 805) and a second rack position (corresponding to the closing position of the middle driving wheel 805).
The energy storage locking block 10 is in plug-in fit with the middle shell 102, so that the energy storage locking block can only slide along the axial direction of the upper rotating shaft assembly 8. The energy storage locking block 10 can slide along the axial direction of the second rotating shaft 804 to have a locking position and an unlocking position, an elastic member is arranged between the energy storage locking block 10 and the upper housing 101, the energy storage locking block 10 is located at the locking position under the elastic action of the elastic member, and the energy storage locking block 10 is pushed to overcome the elastic action of the elastic member so as to enable the energy storage locking block 10 to move to the unlocking position.
The second energy storage element 7 is a torsion spring, and is sleeved on the second rotating shaft 804, two ends of the second energy storage element 7 are respectively provided with a fixed arm and an energy storage arm, as shown in fig. 14, the middle housing 102 is provided with a torsion spring limiting block 105, and the fixed arm of the second energy storage element 7 abuts against the torsion spring limiting block 105 to fix the position of the second energy storage element relative to the housing 1. As shown in fig. 13, the rack 9 is provided with an energy release push block 901, as shown in fig. 15, the energy storage lock block 10 is provided with an energy storage lock groove 1001, and the energy storage lock groove 1001 is located at one side of the linear sliding path of the rack 9. The energy storage arm is provided with an energy storage position and an energy release position, and is positioned at one side of the direction of the movement of the energy release pushing block 901 to the second rack position when the energy storage arm is positioned at the energy release position and the middle driving wheel 805 is positioned at the disconnection position; when the energy storage arm is in the energy storage position and the energy storage locking piece 10 is in the locking position, the end part of the energy storage arm is positioned in the energy storage locking groove 1001, so that the energy storage locking piece 10 can form a locking effect on the energy storage arm, when the energy storage locking piece 10 is switched from the locking position to the unlocking position, the end part of the energy storage arm leaves the energy storage locking groove 1001, so that the energy storage locking piece 10 can release the locking effect on the energy storage arm, the second energy storage element 7 releases energy to enable the energy storage arm to move to the energy release position, and the energy release pushing piece 901 of the rack in the second rack position is positioned on a moving path of the energy storage arm from the energy storage position to the energy release position, so that when the second energy storage element 7 releases energy, the rack 9, the middle driving wheel 805 and the first rotating shaft 3 are sequentially driven, and the first rotating shaft 3 is enabled to move from the closed state to the open state.
A third energy storage element 15, specifically a tension spring, is disposed between the second rotating shaft 804 and the housing 1, and when the second rotating shaft 804 rotates to the closed position, the third energy storage element 15 stores energy.
The electromagnetic driving mechanism 6 is used as a driving mechanism controlled by a remote signal in the embodiment, the electromagnetic driving mechanism 6 is matched with a tripping connecting rod 13, the middle part of the tripping connecting rod 13 is hinged with the shell 1, one end of the tripping connecting rod 13, which is far away from the electromagnetic driving mechanism 6, is positioned below the energy storage locking block 10, when the electromagnetic driving mechanism 6 receives a disconnection instruction signal, the tripping connecting rod 13 is pushed to enable the tripping connecting rod 13 to rotate around a hinged shaft hinged with the shell 1, and the end part of the tripping connecting rod 13, which is positioned below the energy storage locking block 10, is lifted upwards to push the energy storage locking block 10 to be switched from a locking position to an unlocking position.
Meanwhile, as shown in fig. 3, a trip protrusion 206 is disposed on the outer side of the second steering limiting elastic block 202, as shown in fig. 15, a trip pushing portion 1002 is disposed on the energy storage locking block 10 corresponding to the trip protrusion 206, when the energy storage locking block 10 is in the locking position, the trip pushing portion 1002 is located below the trip protrusion 206, when the electromagnetic driving mechanism 6 receives the disconnection instruction signal, the energy storage locking block 10 is switched from the locking position to the unlocking position, and the trip pushing portion 1002 pushes the trip protrusion 206 to lift up, and at this time, the operation swivel seat 5 is free.
As shown in fig. 4, the outer side of the first driving arm 303 protrudes to form a linkage protrusion 304, and when the operating mechanism is in the closed state, the second driving arm 503 is located on a moving path of the linkage protrusion 304 from the closed state to the open state, specifically, the two are disposed adjacently, that is, the two are attached to each other or have a small gap therebetween. Thus, when the electromagnetic driving mechanism 6 receives the opening command signal, the operation swivel seat 5 is free, the linkage projection 304 pushes the second driving arm 503 in the process of rotating the rotating shaft from the closed position to the open position, and the first energy storage element can not store energy or only store energy in a very small amount of pulling open, so that the first energy storage element 4 is always in the energy release state or is basically close to the energy release state in the cutting process of the rotary switch, no resistance is basically formed on the operation swivel seat 5 and the first rotating shaft 3, and the external force for driving the operation mechanism is only the elastic force of the second energy storage element 7.
Specifically, the upper end portion of the second driving arm 503 is elastic and can swing outwards under the pushing action of the linkage protrusion 304, and the side surfaces of the two ends of the second driving arm 503 are provided with third guiding surfaces 505, and the side wall of the position of the linkage protrusion 304 relatively close to the closed state is the second guiding surface 305 and the side wall of the position relatively close to the open state is the linkage acting surface 306. When the rotating shaft rotates to the opening position, the operation swivel mount 5 is free, under the action of the energy released by the first energy storage element 4, the third guide surface 505 rotating to one side of the second guide surface 305 and abutting against the second drive arm 503 is rotated to the opening position, then the operation swivel mount 5 interacts to push the second drive arm 503 with a certain elasticity to slide across the second drive arm 503, and finally the operation swivel mount 5 rotates to the opening position. The third guiding surface 505 may be a smooth convex curved surface as shown in the figure, or may be a smooth guiding inclined surface. The second guiding surface 305 may be a smooth convex curved surface as shown in the figure, or may be a smooth guiding inclined surface. When the operation swivel base 5 is locked by the stop piece 2, the linkage action surface 306 interacts with the third guide surface 505 under a certain external force to push away the second driving arm 503, and when the operation swivel base 5 releases the locking action of the stop piece 2, the linkage action surface 306 interacts with the second driving arm 503 to directly push the second driving arm 503 to rotate circumferentially instead of pushing away the second driving arm 503, and the linkage action surface 306 can be a plane as shown in the figure or an inner inclined plane or an inner concave curved plane.
As shown in fig. 16, in the tripped and disconnected state, the operating mechanism is in a disconnected state, the second rotating shaft 804 and the intermediate driving wheel 805 are both located at the disconnected position, the second energy storage element 7 and the third energy storage element 15 are not stored with energy, and the tilted rod 808 is located in the interlocking lock groove 809 so that the second rotating shaft 804 and the intermediate driving wheel 805 form a circumferential linkage fit relationship; at this time, as shown in fig. 17, the turning knob rotates the second rotating shaft 804 to the closed position, the intermediate driving wheel 805 rotates to the closed position along with it, the operating mechanism is in the closed state, the second energy storage element 7 and the third energy storage element 15 both store energy, the pushing block 506 moves below the trip push rod 14 and pushes the trip push rod 14 to further move the trip push rod 14 upward to make the tilted rod 808 separate from the interlocking slot 809, the interlocking structure is in the unlocked state, the second rotating shaft 804 and the intermediate driving wheel 805 form a unidirectional linkage fit relationship under the action of the unidirectional linkage fit structure, when the second rotating shaft 804 rotates to the open position from the closed position, the intermediate driving wheel 805 can be driven to move to the open state, that is, the operating mechanism can be normally opened in the energy storage state of the second energy storage element 7, and after the third energy storage element 15 is normally opened, the tilted rod 808 returns to the interlocking slot 809 to form the circumferential linkage fit relationship, as shown in fig. 18, the intermediate driving wheel 805 can be normally opened.
When the switch in the closed state in fig. 17 is tripped, the second energy storage element 7 releases energy, the intermediate driving wheel 805 can freely rotate to the open position relative to the second rotating shaft 804, as shown in fig. 19, so as to achieve the purpose of free tripping, the second rotating shaft 804 is reset under the action of the energy released by the third energy storage element 15, and finally returns to the initial state shown in fig. 16.
The foregoing is merely one embodiment of the present invention, and is not intended to limit the scope of the present invention; the protection scope of the present invention is defined by the claims in the claims, and all equivalent changes and modifications made in accordance with the invention are within the protection scope of the present patent.
Claims (10)
1. A rotary switch capable of tripping freely comprises a shell, an operating mechanism, a second rotating shaft, a second energy storage element and a driving mechanism, wherein the operating mechanism is in an open state and a closed state; the second rotating shaft penetrates out of the shell for rotating operation and has an opening position and a closing position; the second energy storage element is provided with an energy storage state and an energy release state, when the second energy storage element is in the energy storage state, the second rotating shaft can rotate to drive the operating mechanism to switch between an open state and a closed state, the second energy storage element is in the energy storage state, and when the second energy storage element is in the energy storage state and is converted into the energy release state, the second energy storage element can drive the operating mechanism in the closed state to switch to the energy storage state; the second energy storage element in the energy storage state can be converted into an energy release state through the driving mechanism;
the method is characterized in that: the second rotating shaft and the operating mechanism are provided with a matching structure, the matching structure is provided with an operating state enabling the second rotating shaft and the operating mechanism to form a linkage relation and a free tripping state enabling the second rotating shaft and the operating mechanism to release the linkage relation, and when the second rotating shaft is at a closed position and the operating mechanism is in an action process of switching from the closed state to the open state, the matching structure is switched into the free tripping state.
2. The freely releasable rotary switch of claim 1 wherein: the shell is internally provided with an upper cavity and a lower cavity which are separated by a middle partition board, the second rotating shaft is arranged in the upper cavity, the upper cavity is internally provided with a middle driving wheel, the middle driving wheel can rotate relative to the shell and has an opening position and a closing position, and the middle driving wheel is in linkage fit with the operating mechanism to enable the middle driving wheel to rotate so as to drive the operating mechanism to switch between an opening state and a closing state;
the cooperation structure is arranged between the second rotating shaft and the middle driving wheel, the cooperation structure is provided with an operation state enabling the second rotating shaft and the middle driving wheel to form a linkage relation and a free tripping state enabling the second rotating shaft and the middle driving wheel to release the linkage relation, and when the second rotating shaft is in a closed position and the middle driving wheel is in a path from the closed position to the open position, the cooperation structure is switched into the free tripping state.
3. The freely releasable rotary switch of claim 2 wherein: the matching structure is composed of a unidirectional linkage matching structure and an interlocking structure, wherein the unidirectional linkage matching structure and the interlocking structure are arranged between the second rotating shaft and the middle driving wheel;
under the action of the unidirectional linkage matching structure, when the second rotating shaft rotates from the opening position to the closing position and the intermediate driving wheel rotates from the closing position to the opening position, the second rotating shaft and the intermediate driving wheel form a relative rotation relationship, and when the second rotating shaft rotates from the closing position to the opening position and the intermediate driving wheel rotates from the opening position to the closing position, the second rotating shaft and the intermediate driving wheel form a linkage relationship;
the interlocking structure is provided with a locking state for enabling the second rotating shaft and the middle driving wheel to form a circumferential linkage matching relationship and an unlocking state for enabling the second rotating shaft and the middle driving wheel to release the circumferential linkage matching relationship, and is in the unlocking state if and only if the operating mechanism is in the closed state.
4. The freely releasable rotary switch of claim 3, wherein: the unidirectional linkage matching structure comprises a unidirectional linkage push block which is arranged eccentrically on the second rotating shaft and an arc-shaped chute which is arranged on the middle driving wheel and is arranged correspondingly, and the unidirectional linkage push block is arranged on the arc-shaped chute.
5. The freely releasable rotary switch of claim 3, wherein: the interlocking structure comprises a tilting rod hinged and fixed on the middle driving wheel through a hinge shaft, an interlocking locking groove positioned on the second rotating shaft, an elastic acting piece acting on the tilting rod and a tripping ejector rod matched with the tilting rod, wherein the tilting rod is partially inserted into the interlocking locking groove to enable the second rotating shaft and the middle driving wheel to form a circumferential linkage matching relationship only under the action of the elastic acting piece, the tripping ejector rod is in limit matching with the middle partition plate to enable the tilting rod to slide along the axial direction of the second rotating shaft, and a pushing block is fixedly arranged on the operating mechanism corresponding to the position below the tripping ejector rod, and pushes the tripping ejector rod to enable the tilting rod to leave the interlocking locking groove when the operating swivel seat moves to a closed position.
6. The freely tripped rotary switch of claim 5 wherein: the lower surface of the trip ejector rod is provided with a fourth guide surface, and when the operation swivel mount moves to the closed position, the pushing block moves along the fourth guide surface to enable the trip ejector rod to move; the inner side and the outer side of the unbuckling ejector rod are provided with third limiting blocks, the middle shell is provided with unbuckling through grooves for installing the unbuckling ejector rod, and limiting grooves matched with the third limiting blocks are arranged in the unbuckling through grooves.
7. The freely tripped rotary switch of claim 5 wherein: the elastic acting piece is a torsion spring wound on the hinge shaft.
8. The freely releasable rotary switch of claim 2 wherein: and a transmission structure is arranged between the second energy storage element and the intermediate transmission wheel, and when the second energy storage element is in an energy storage state and is converted into an energy release state, the second energy storage element can drive the intermediate transmission wheel to enable the operating mechanism in a closed state to be switched into an open state.
9. The freely releasable rotary switch of claim 3, wherein: the operation mechanism comprises a first rotating shaft, an operation swivel seat, a first energy storage element and a stopping device, wherein the first energy storage element is arranged between the first rotating shaft and the operation swivel seat and is used for driving the operation swivel seat to rotate, the stopping device is used for locking the operation swivel seat, the operation swivel seat is locked when the operation mechanism is in the open state and is in the closed state, the operation swivel seat is kept to be inactive, the first rotating shaft is rotated to enable the first rotating shaft to rotate from the position of the closed state to the position of the open state or rotate from the position of the open state to the position of the closed state, the stopping device is unlocked after the first energy storage element finishes energy storage, and the operation swivel seat rotates under the action of the first energy storage element; the pushing block is fixed on the operation swivel base; the first rotating shaft is in linkage fit with the middle transmission wheel in the circumferential direction.
10. The freely releasable rotary switch of any one of claims 1-9, wherein: the second rotating shaft is connected with a third energy storage element, the third energy storage element is provided with an energy release state corresponding to the second rotating shaft positioned at the opening position and an energy storage state corresponding to the second rotating shaft positioned at the closing position, and the second rotating shaft positioned at the closing position can be rotated to the opening position only under the action of the third energy storage element in the free tripping state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310489972.0A CN116469715A (en) | 2023-04-28 | 2023-04-28 | Rotary switch capable of free tripping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310489972.0A CN116469715A (en) | 2023-04-28 | 2023-04-28 | Rotary switch capable of free tripping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116469715A true CN116469715A (en) | 2023-07-21 |
Family
ID=87178871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310489972.0A Pending CN116469715A (en) | 2023-04-28 | 2023-04-28 | Rotary switch capable of free tripping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116469715A (en) |
-
2023
- 2023-04-28 CN CN202310489972.0A patent/CN116469715A/en active Pending
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