CN218631725U - Tripping mechanism capable of resetting automatically - Google Patents

Abstract

The utility model relates to the field of low-voltage apparatus, in particular to a tripping mechanism capable of resetting automatically, which comprises a time-delay energy-storage mechanism and a tripper; the tripping mechanism also comprises a reset gear which is rotatably arranged, the tripper comprises a tripper coil component and a tripper ejector rod component which are matched, and the reset gear is in driving fit with the tripper ejector rod component; the tripper ejector rod assembly is ejected to trigger the delay energy storage mechanism to release energy, and the delay energy storage mechanism drives the reset gear to rotate to drive the tripper ejector rod assembly to reset when storing energy; the tripping mechanism capable of automatically resetting has the advantages that the resetting gear rotates to drive the tripper to reset, the structure is simple, and the action is reliable.

Description

Tripping mechanism capable of resetting automatically

Technical Field

The utility model relates to a low-voltage apparatus field, concretely relates to but self-righting's tripping device.

Background

A rotary disconnector usually comprises an operating device and a switch body which are drivingly connected, the switch body comprising a plurality of switch units stacked together and synchronously closed or opened by the operating device. With the wide application of the rotary isolating switch, a new functional requirement is provided for the rotary isolating switch: namely, when the system line has a fault, the rotary isolating switch has a remote tripping function, and manual switching-on can be carried out when the fault is cleared, and meanwhile, the manual switching-on and switching-off operation of the isolating switch is not influenced by the remote tripping function.

The operating device generally comprises an operating shaft, a time-delay energy storage mechanism, a real-time energy storage mechanism, a locking mechanism, a tripping mechanism and a resetting mechanism, wherein the operating shaft rotates between a tripping position and a closing position to complete tripping and closing operations through the real-time energy storage mechanism, the operating shaft drives the time-delay energy storage mechanism to be switched from an energy release state to an energy storage state and to be in locking fit with the locking mechanism to keep in the energy storage state, the tripping mechanism drives the locking mechanism to act to release the locking fit with the time-delay energy storage mechanism, the time-delay energy storage mechanism releases energy and completes tripping operation through the real-time energy storage mechanism, and the resetting mechanism is used for driving the tripping mechanism to reset after the operating device trips and trips.

The existing rotary isolating switch has the following problems:

1. the tripping mechanism comprises a magnetic flux tripper, and after the tripping mechanism acts, the magnetic flux tripper still keeps electrified, so that the service life of the magnetic flux tripper is influenced.

2. The resetting mechanism is usually realized through a lock catch piece of the lock catch mechanism, but the lock catch piece is not high in strength and easy to damage, and the reliable work of the resetting mechanism is influenced.

3. The existing reset mechanism needs to be manually operated when switching on is carried out after remote switching-off, so that a release resets, automatic reset cannot occur, and manual reset is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a but self-resetting's tripping device, its gear that resets rotates and resets with the drive release, simple structure, action are reliable.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a tripping mechanism capable of resetting automatically comprises a time delay energy storage mechanism and a tripper; the tripping mechanism also comprises a reset gear which is rotatably arranged, the tripper comprises a tripper coil component and a tripper ejector rod component which are matched, and the reset gear is in driving fit with the tripper ejector rod component; the tripper ejector rod assembly is ejected out to trigger the time-delay energy storage mechanism to release energy, and the time-delay energy storage mechanism drives the reset gear to rotate to drive the tripper ejector rod assembly to reset when storing energy.

Preferably, the reset gear comprises a gear driving part, the reset gear is driven by external force to rotate, and the gear driving part is pressed against the tripper ejector rod assembly to reset the tripper ejector rod assembly.

Preferably, the gear driving part comprises a gear driving surface, the gear driving surface is an inclined surface, and the reset gear rotates and presses the release push rod assembly through the gear driving surface to reset the release push rod assembly.

Preferably, the tripper ejector rod assembly comprises a reset inclined plane matched with the gear driving surface.

Preferably, the tripper ejector rod assembly comprises a tripper ejector rod and a tripper driving arm, the tripper driving arm comprises a driving arm mounting part, a driving arm connecting part and a driving arm driving part which are sequentially bent and connected, and a reset inclined plane is arranged at the joint of the driving arm mounting part and the driving arm connecting part.

Preferably, the driving arm mounting part, the driving arm connecting part and the driving arm driving part are integrally in a zigzag structure, the plane where the driving arm mounting part and the driving arm driving part are located is parallel, the driving arm driving part deviates to the side where the tripper coil assembly is located relative to the driving arm mounting part, and the extending direction of the driving arm connecting part is parallel to the moving direction of the tripper ejector rod assembly.

Preferably, the rotation axis of the reset gear is parallel to the moving direction of the tripper push rod assembly, and the gear driving surface of the reset gear is a spiral surface extending along the axial direction of the reset gear.

Preferably, the tripping mechanism further comprises a gear resetting elastic piece, and after the external force is relieved, the gear resetting elastic piece drives the resetting gear to reset.

Preferably, the reset gear includes a gear body, a gear driving portion and a gear tooth portion, the gear driving portion and the gear tooth portion are both distributed on the circumferential side of the gear body, the gear driving portion is provided with a gear driving surface, the gear driving surface is a spiral surface extending along the axial direction of the reset gear, and the gear tooth portion is driven by an external force to rotate the reset gear.

Preferably, the reset gear further comprises a reset gear spring column, the reset gear spring column is arranged on the gear driving portion, the axis of the reset gear spring column is parallel to the rotation axis of the reset gear, one end of the gear reset elastic piece is fixedly arranged, and the other end of the gear reset elastic piece is connected to the reset gear spring column.

Preferably, the coil assembly of the tripper comprises a coil of the tripper, a static iron core, a movable iron core, a magnetic yoke of the tripper and a spring of the tripper, wherein the movable iron core is connected with a tripper ejector rod of the tripper ejector rod assembly, the spring of the tripper applies acting force to the movable iron core to separate the movable iron core from the static iron core, and the coil of the tripper is electrified to generate a magnetic field to enable the movable iron core to overcome the acting force of the spring of the tripper and attract the static iron core.

Preferably, the release is a magnetic flux release.

The utility model discloses but self-resetting's tripping device, its gear that resets receive time delay energy storage mechanism drive and rotate to the drive release resets, and simple structure, action are reliable.

In addition, the reset gear is pressed against a release ejector rod assembly of the release through the reset inclined plane to reset the release ejector rod assembly, and the matching is simple and reliable.

Drawings

Fig. 1 is a schematic structural view of the rotary isolating switch of the present invention;

fig. 2 is a schematic structural view of the rotary isolating switch of the present invention, wherein the operating device and the switch body are in a disassembled state;

fig. 3 is a schematic projection diagram of the delay energy storage mechanism, the locking mechanism, the tripping mechanism and the resetting mechanism of the present invention, wherein the delay energy storage mechanism is in an energy release state;

fig. 4 is a schematic structural diagram of the energy storage mechanism, the locking mechanism, the tripping mechanism and the resetting mechanism of the present invention, wherein the time-delay energy storage mechanism is in the process of switching from the energy release state to the energy storage state;

fig. 5 is a schematic projection view of the delay energy storage mechanism, the locking mechanism, the tripping mechanism and the reset mechanism of the present invention, wherein the delay energy storage mechanism is in an energy storage state, the turntable and the locking member are in a locking state, and the turntable is disengaged from the reset gear;

fig. 6 is a schematic structural view of the delay energy storage mechanism and the locking member of the present invention, wherein the delay energy storage mechanism is in an energy storage state, and the turntable and the locking member are in a locking state;

fig. 7 is a schematic structural diagram of the delay energy storage mechanism, the reset mechanism and the tripping mechanism of the present invention, wherein the tripper of the tripping mechanism is reset;

fig. 8 is a schematic structural view of the delay energy storage mechanism, the reset mechanism and the tripping mechanism of the present invention, wherein the tripping device of the tripping mechanism is not reset;

fig. 9 is an exploded schematic view of the delay energy storage mechanism of the present invention;

fig. 10 is a schematic structural view of the gasket of the present invention;

fig. 11 is a schematic structural diagram of the turntable of the present invention;

fig. 12 is a schematic view of a first bushing according to the present invention;

fig. 13 is a schematic cross-sectional view of the device housing of the present invention;

fig. 14 is an exploded view of the housing of the device of the present invention;

fig. 15 is a schematic structural view of the upper cover of the housing of the present invention;

fig. 16 is a schematic structural view of the shell partition plate of the present invention;

fig. 17 is a schematic structural view of the reset gear of the present invention;

fig. 18 is a schematic structural diagram of the trip unit of the present invention;

fig. 19 is a circuit topology diagram of the trip mechanism of the present invention.

Description of the reference numerals

A first space s1; a second space s2; a partition plate p;

a housing base 101; a housing partition 102; a gasket mounting groove 1021; a partition shaft hole 1023; a housing diaphragm spring post 1024; a housing diaphragm spring retaining groove 1025; a turntable block 1026; bulkhead jacks 1027; a housing upper cover 103; an upper cover shaft hole 1031; a housing panel 104;

an operation shaft 1131; a gasket 121; a gasket clearance hole 1211; a shim counterbore 1212; a pad insertion hole 1213; a first shim pocket 1214; a second gasket slot 1215; a gasket opening 1216; a locking member 122; a locker main board 1222; a catch member passive portion 1221; catch member locking portion 1223; latch return spring 123; a first bushing 124; a first liner body 1241; a first liner head 1242; a slide protrusion 1245; a first stored energy spring 126; a first spring securing end 1261; a first spring follower end 1262; a turntable 127; a turntable main board 1270 and a turntable shaft hole 1271; dial locking arms 1273-74; a dial locking arm engagement surface 1273; a dial lock arm locking surface 1274; dial engagement arms 1275-77; the dial engagement arm engagement rim 1275; a turntable engagement arm limit side edge 1277; a turntable actuated aperture 1276; first face 12761; a second face 12762; carousel tooth 1277; an actuation key 128;

a reset gear 132; a gear body 1320; a gear drive unit 1321; a gear drive face 1321-0; gear teeth 1322; a return gear spring post 1323; the gear return elastic member 133;

a release 134; a trip coil assembly 1342; a release ejector rod assembly 1341; a trip actuator arm 13410; a drive arm mounting portion 13410-1; a drive arm connecting portion 13410-2; a driving arm driving portion 13410-3; reset ramp 13410-4; a release ejector rod 13411; a trip terminal 1343; a circuit board 135; a signal interface 136; a changeover switch 137; a power supply terminal 138;

a screw 3; a handle 4; a handle attachment hole 41; the handle is connected with a screw 5.

Detailed Description

The following description will further describe a specific embodiment of the isolating switch of the present invention with reference to the embodiments shown in the drawings. The isolation switch of the present invention is not limited to the description of the following embodiments.

As shown in fig. 1-2, the present invention discloses a rotary isolating switch, preferably a remote control rotary switch, which includes an operating device 1 and a switch body 2 connected by a drive, wherein the operating device 1 drives the switch body 2 to switch on or off the circuit. Further, the operating device 1 is fixedly connected with the switch body 2 through a connecting piece. Further, as shown in fig. 2 and 14, the connecting member is preferably a bolt, the bolt includes a screw rod 3 and a nut, and the screw rod 3 is threaded with the nut fixed on the operating device 1 after passing through the switch body 2 (the nut is preferably provided on the housing base 101 of the device housing of the operating device). Of course, it is not excluded that the operating device 1 and the switch body 2 are connected in other ways, for example by means of rivets or snap-on connections or the like.

As shown in fig. 1 to 3, the switch body 2 includes at least one switch unit, and the switch unit includes a movable contact assembly rotatably disposed and a fixed contact matched with the movable contact assembly; the operating device 1 is connected with a moving contact component of the switch unit in a driving mode, and drives the moving contact component to rotate so as to be closed or disconnected with a fixed contact, and therefore a circuit is connected or disconnected. Further, the switch body 2 includes a plurality of switch units arranged in a stacked manner, and the movable contact assemblies of the switch units are linked and rotated.

As shown in fig. 4-12, the operating device 1 includes an operating shaft 1131, a time-delay energy storage mechanism, a real-time energy storage mechanism, a locking mechanism, a tripping mechanism, and a resetting mechanism, which are rotatably disposed around their axes; the operating shaft 1131 rotates between an opening position and a closing position to output an opening and closing operating force to the real-time energy storage mechanism; the real-time energy storage mechanism comprises a second energy storage spring, the operating shaft 1131 is in transmission fit with the real-time energy storage mechanism and is used for driving the second energy storage spring 1133 to store energy and then release energy so as to drive the operating device 1 to be rapidly switched between an opening state and a closing state, and the operating device 1 drives the switch body 2 to rapidly break or switch on a circuit; when the operating shaft 1131 rotates from the switching-on position to the switching-off position, the operating device 1 is driven by the real-time energy storage mechanism to be switched to the switching-off state, and when the operating shaft 1131 is switched from the switching-off position to the switching-on position, the operating device 1 is driven by the real-time energy storage mechanism to be switched to the switching-on state; the delayed energy storage mechanism comprises a first energy storage spring 126, and the delayed energy storage mechanism has an energy storage state in which the first energy storage spring 126 stores energy and an energy release state in which the first energy storage spring 126 releases energy; the locking mechanism is used for locking the delay energy storage mechanism in an energy storage state; the tripping mechanism is used for triggering the locking mechanism to be unlocked and matched with the time-delay energy storage mechanism, so that the time-delay energy storage mechanism releases energy, and the energy storage state is switched to the energy release state to drive the operating device 1 to be switched from the closing state to the opening state; when the operating shaft 1131 rotates from the opening position to the closing position, the delay energy storage mechanism is driven to switch from the energy release state to the energy storage state, and the delay energy storage mechanism is locked and matched with the locking mechanism to be locked in the energy storage state; when the delay energy storage mechanism is locked in the energy storage state by the locking mechanism, the operation shaft 1131 is avoided, that is, the operation shaft 1131 rotates between the closing position and the opening position at the moment without influencing the state of the delay energy storage mechanism; when the operating device 1 is in a tripping and opening state, that is, after the tripping mechanism triggers the delay energy storage mechanism to release energy and the delay energy storage mechanism drives the operating device 1 to open, the operating shaft 1131 rotates from the opening position to the closing position to drive the first energy storage spring 126 of the delay energy storage mechanism to store energy, and at the same time, the resetting mechanism drives the tripping mechanism to reset to prepare for next tripping and opening. That is to say: when the operating device 1 is in an open state and the delay energy storage mechanism is in an energy release state, the operating shaft 1131 rotates from the open position to the close position, the operating device 1 is driven by the real-time energy storage mechanism to be switched to the close state, and meanwhile, the delay energy storage mechanism is driven to be switched to the energy storage state and is locked and matched with the locking mechanism so as to be kept in the energy storage state; when the time-delay energy storage mechanism is in an energy storage state, the operating shaft 1131 is freely switched between a switching-on position and a switching-off position, that is, when the operating device 1 is in the switching-off state and the time-delay energy storage mechanism is in an energy release state, the operating shaft 1131 rotates from the switching-off position to the switching-on position, the operating device 1 is driven to be switched to the switching-on state by the real-time energy storage mechanism, and simultaneously the time-delay energy storage mechanism is driven to be switched to the energy storage state and is in locking fit with the locking mechanism to be kept in the energy storage state; when the time-delay energy storage mechanism is in an energy storage state, the operating shaft 1131 is freely switched between a switching-on position and a switching-off position, that is, external force can be directly applied to the operating shaft 1131 to drive the operating shaft to rotate between the switching-off position and the switching-on position so as to drive the operating device 1 to freely switch between the switching-off state and the switching-on state, and the state of the energy storage mechanism cannot be influenced; when the operating device 1 is in a closing state and the delay energy storage mechanism is in an energy storage state, the tripping mechanism drives the locking mechanism to be unlocked and matched with the delay energy storage mechanism after receiving a tripping signal, and the delay energy storage mechanism releases energy and drives the operating device 1 to be switched to a switching-off state; the operating shaft 1131 rotates in two opposite directions to rotate between an open position and a close position; therefore, the operating device 1 can be switched off in two ways, one way is that the external force screwing operating shaft 1131 drives the operating device 1 to be switched off manually, the other way is that a tripping signal is input to a tripping mechanism in a remote control way, the tripping mechanism acts to trigger a delay energy storage mechanism to release energy, and the delay energy storage mechanism drives the operating device 1 to be switched off, so that the remote switching-off control of the rotary isolating switch is realized; after the tripping mechanism acts to trigger the delay energy storage mechanism to release energy to drive the operating device 1 to open the brake, the operating shaft 1131 drives the operating device 1 to close the brake again, and simultaneously drives the delay energy storage mechanism to switch to an energy storage state, and simultaneously drives the tripping mechanism to reset through the resetting mechanism. Further, the locking mechanism comprises a locking piece 122, and the locking piece 122 is used for being in locking fit with the time-delay energy storage mechanism to lock the time-delay energy storage mechanism in an energy storage state; the tripping mechanism comprises a release 134 which is used for driving the locking piece 122 to act so as to enable the locking piece to be unlocked and matched with the time-delay energy storage mechanism; the time-delay energy storage mechanism is locked and matched with the locking piece 122 after being switched to the energy storage state so as to keep in the energy storage state; after the tripping mechanism receives a tripping signal, the tripping device 134 acts to drive the locking piece 122 to be unlocked and matched with the time-delay energy storage mechanism; the trip mechanism reset is also referred to as the reset of the trip unit 134.

As shown in fig. 1-9 and 13-16, the operating device 1 further includes a device housing, and the time-delay energy storage mechanism, the real-time energy storage mechanism, the locking mechanism and the tripping mechanism are disposed in the device housing. Further, as shown in fig. 13, the device housing includes a first space s1 and a second space s2 disposed along an axial direction of the operating shaft 1131, a partition plate p is disposed between the first space s1 and the second space s2, the time delay energy storage mechanism is disposed in the first space s1, the real-time energy storage mechanism is disposed in the second space s2, the partition plate p is disposed with a partition plate shaft hole 1023 for the operating shaft 1131 to pass through, the operating shaft 1131 is rotatably inserted in the first space s1 and the second space s2 and respectively cooperates with the energy delay mechanism and the real-time energy storage mechanism, one end of the operating shaft 1131 protrudes outside the device housing for operation, and the other end of the operating shaft 1131 sequentially passes through the first space s1 and the partition plate p and then is inserted in the second space s 2. Further, as shown in fig. 13 to 14, the device housing includes a housing upper cover 103, a housing partition plate 102, and a housing base 101, which are sequentially engaged with each other, the housing upper cover 103 and the housing partition plate 102 are fastened to form a first space s1, the housing partition plate 102 and the housing base 101 are fastened to form a second space s2, and the housing partition plate 102 includes a partition plate p.

Preferably, as shown in fig. 13-14, the device housing further comprises a housing panel 104, the housing panel 104 and the housing partition 102 are respectively located at two sides of the housing upper cover 103, and the housing panel 104 is fixedly connected to the housing upper cover 103. Further, a panel clamping pin is arranged on one side of the shell panel 104 facing the shell upper cover 103; an upper cover clamping hole is formed in one side, facing the shell panel 104, of the shell upper cover 103, and panel clamping pins are clamped in the upper cover clamping hole.

As shown in connection with fig. 3-9, 13-14, the locking mechanism is preferably disposed within the first space s 1.

Preferably, as shown in fig. 13, the device housing further includes a third space s3 for accommodating the trip mechanism, and the third space s3 and the second space s2 are arranged side by side in a radial direction of the operating shaft 1131. Further, the third space s3 is provided on the housing partition 102.

As shown in fig. 15, the housing upper cover 103 includes an upper cover shaft post, an upper cover shaft hole 1031 is disposed at the middle of the upper cover shaft post, and the operation shaft 1131 is rotatably inserted into the upper cover shaft hole 1031.

The real-time energy storage mechanism can be realized through the prior art, for example, when the operating shaft 1131 rotates between the switching-on position and the switching-off position to complete switching-on and switching-off operations through the real-time energy storage mechanism, the real-time energy storage mechanism all experiences the processes of energy storage and energy release, when the real-time energy storage mechanism stores energy, the switch body 2 is preferably not operated, and when the real-time energy storage mechanism releases energy, the switch body 2 is driven to switch between the switching-on state and the switching-off state, specifically: the real-time energy storage mechanism comprises a second energy storage spring and an output shaft, the energy storage and release processes of the real-time energy storage mechanism are also the energy storage and release processes of the second energy storage spring, when the second energy storage spring stores energy, the output shaft does not rotate, when the second energy storage spring releases energy, the output shaft is driven to rotate, and the output shaft drives the switch body 2 to be switched on or switched off.

As shown in fig. 4 to 12, in an embodiment of the time-delay energy storage mechanism, the time-delay energy storage mechanism is used to provide energy for opening the operating device, that is, the time-delay energy storage mechanism provides a driving force for driving the operating shaft 1131 to rotate from the closing position to the opening position, specifically: the delay energy storage mechanism includes a first energy storage spring 126, when the operating shaft 1131 rotates from the opening position to the closing position to drive the operating device to close, the first energy storage spring 126 is driven to store energy, that is, the delay energy storage mechanism is driven to switch from the energy release state to the energy storage state, and when the opening is controlled remotely, the delay energy storage mechanism releases energy, that is, the first energy storage spring 126 releases energy, and provides a driving force for the operating shaft 1131 to rotate from the closing position to the opening position.

When the operating device 1 is in a closing state, the energy release of the delay energy storage mechanism drives the operating shaft 1131 to rotate, then the operating shaft 1131 drives the operating device 1 to be switched to a switching-off state through the real-time energy storage mechanism, and compared with the prior art that the delay energy storage mechanism directly drives the switching-off state through the real-time energy storage mechanism, the overall structure of the operating device is simplified, and the working stability and reliability are improved. In the present embodiment, the rotary isolating switch, whether manually operated or remotely controlled, needs to output an opening or closing operation force through the operation shaft 1131, and completes the opening or closing operation through the real-time energy storage mechanism.

As shown in fig. 4, 6-9, the delay energy-storing mechanism comprises a rotating disc 127 and a first energy-storing spring 126, the rotating disc 127 is driven by an operating shaft 1131 to rotate from an energy-releasing position to an energy-storing position to store energy in the first energy-storing spring 126, and the rotating disc 127 is locked at the energy-storing position to keep the delay energy-storing mechanism in an energy-storing state; when the operating shaft 1131 is in a switching-on position, that is, the operating device 1 is in a switching-on state, a switching-off idle stroke exists between the rotating disc 127 and the operating shaft 1131, the operating shaft 1131 is driven to rotate by external force, and the operating shaft 1131 rotates from the switching-on position to the switching-off position to switch the operating device 1 to the switching-off state, and meanwhile, the switching-off idle stroke runs relative to the rotating disc 127. Further, as shown in fig. 5-6, the rotating disc 127 is in locking fit with the locking member 122 of the locking mechanism to lock the rotating disc 127 at the energy storage position, and the rotating disc 127 is directly matched with the locking member 122, which is beneficial to improving the stability and reliability of the matching of the two matching delay energy storage mechanisms and the locking mechanism.

As shown in fig. 9 and 11, the turntable 127 is disposed coaxially with the operating shaft 1131, the turntable 127 includes a turntable main plate 1270, the turntable main plate 1270 is provided with a turntable shaft hole 1271 and at least one turntable driven hole 1276, the turntable 127 is rotatably sleeved on the operating shaft 1131 through the turntable shaft hole 127, and the turntable driven hole 1276 includes a first surface 12761 and a second surface 12762; the time-delay energy storage mechanism comprises a driving finger which is fixedly arranged on the operating shaft 1131 and synchronously rotates with the operating shaft, and the driving finger is arranged in the turntable driven hole 1276; the drive finger presses against the first face 12761 to rotate the turntable 127 toward the stored energy position; when the operating shaft 1131 is in the switching-on position, a switching-off idle stroke exists between the second surface 12762 and the driving finger, at this time, the operating shaft 1131 rotates from the switching-on position to the switching-off position, the operating shaft 1131 drives the driving finger to move through the switching-off idle stroke relative to the rotating disc 127, and a switching-on idle stroke is formed between the driving finger and the first surface 12761 at the same time, at this time, the operating shaft 1131 rotates from the switching-off position to the switching-on position, the operating shaft 1131 drives the driving finger to move through the switching-on idle stroke relative to the rotating disc 127, and an idle stroke is formed between the driving finger and the second surface 12762 again, that is, when the delay energy storage mechanism is in the energy storage state (the rotating disc 127 is in the energy storage position), the operating shaft 1131 can freely rotate between the switching-on position and the switching-off position relative to the rotating disc 127 without affecting the state of the delay energy storage mechanism, that is, the delay energy storage mechanism can be kept in the energy storage state; when the time-delay energy storage mechanism releases energy, the first energy storage spring 126 releases energy to drive the rotating disc 127 to rotate to the energy release position, the first face 12761 is matched with the driving finger to drive the operating shaft 1131 to rotate to the opening position, and the operating shaft 1131 preferably drives the operating device 1 to be switched to the opening state through the real-time energy storage mechanism.

As shown in fig. 11, the turntable driven hole 1276 is a sector hole concentric with the turntable shaft hole 1271, and a first surface 12761 and a second surface 12762 are respectively disposed at two ends of the sector hole in the circumferential direction. Further, the turntable 127 includes two sector-shaped holes, and the two sector-shaped holes are symmetrically arranged on two radial sides of the turntable shaft hole 1271; the time-delay energy-storing mechanism further comprises a driving key 128, wherein the driving key 128 is inserted onto the operating shaft 1131 along the radial direction, and two ends of the driving key 128 respectively protrude out of two radial sides of the operating shaft 1131 to be used as driving fingers and are respectively arranged in the two sector-shaped holes. Furthermore, the radial inner ends of the two sector-shaped holes are communicated with the turntable shaft hole 1271, and the three are integrally in a dumbbell-shaped structure; as shown in fig. 9, the operating shaft 1131 is provided with an operating shaft insertion hole 11314 into which the driving member 128 is inserted.

As another embodiment, the opening stroke between the rotating disc 127 and the operating shaft 1131 can be realized by the following methods: the operating shaft 1131 is provided with a sector groove, the center of the sector groove coincides with the axis of the operating shaft 1131, and two ends of the sector groove in the circumferential direction are respectively a first driving surface and a second driving surface; the turntable 127 comprises a turntable driven finger arranged in the turntable shaft hole 1271, and the turntable driven finger is inserted in the fan-shaped groove; when the operating shaft 1131 rotates from the open position to the close position, the first driving surface presses against the dial driven finger to rotate the dial 127 from the energy release position to the energy storage position, the dial 127 is locked at the energy storage position, an open-close idle stroke exists between the second driving surface and the dial driven finger, at this time, when the operating shaft 1131 rotates from the close position to the open position, the operating shaft 1131 moves through the open-close idle stroke relative to the dial 127, and a close-close idle stroke exists between the second driving surface and the dial driven finger, at this time, when the operating shaft 1131 rotates from the open position to the open position, the operating shaft 1131 moves through the close-close idle stroke relative to the dial driven finger, that is, when the time-delay energy storage mechanism is in the energy storage state (the dial 127 is in the energy storage position), the operating shaft 1131 can freely rotate between the close position and the open position to drive the operating device to switch between the close state and the open state.

As shown in fig. 6 to 9, the first energy storage spring 126 is a torsion spring rotatably sleeved on the operating shaft 1131, the first energy storage spring 126, the rotating disc 127 and the operating shaft 1131 are coaxially disposed, two ends of the first energy storage spring 126 are a first spring fixing end 1261 fixedly disposed and a first spring driven end 1262 matched with the rotating disc 127, respectively, and the rotating disc 127 rotates to the energy storage position to drive the first spring driven end 1262 to swing so as to allow the first energy storage spring 126 to store energy by torsion.

As other embodiments, the first energy storage spring 126 is a linear compression spring, one end of which is rotatably disposed on the housing partition 102 of the device housing, and the other end of which is rotatably connected to the rotary table 127; the rotating disc 127 rotates from the energy release position to the energy storage position, so that the first energy storage spring 126 is compressed and stored energy, the energy storage position of the rotating disc 127 is before the dead point position of the first energy storage spring 126, and the dead point position of the first energy storage spring 126 refers to the position of the first energy storage spring 126 when the geometric axis of the first energy storage spring 126 is in the same line with the axis of the rotating disc 127. Of course, the first energy storage spring 126 may also be replaced by a torsion spring, two ends of the torsion spring are respectively rotatably connected to the housing partition plate 102 and the rotating disc 127, and at this time, the dead point position of the first energy storage spring 126 refers to the position of the first energy storage spring 126 when the two ends of the torsion spring and the rotating disc 127 are located on the same straight line. The above implementation manner will increase the occupied space of the time-delay energy storage mechanism, so the first energy storage spring 126 of the embodiment preferably adopts a torsion spring that is rotatably sleeved on the operating shaft 1131.

As shown in fig. 3-6, the rotary plate 127 includes a main plate 1270 and engaging arms 1275-77, the first fixed end 1261 of the first energy-storing spring 126 is fixed to the device housing, the first driven end 1262 is engaged with the engaging arms 1275-77, and the rotary plate 127 drives the first driven end 1262 to swing through the engaging arms 1275-77 to torsionally store energy in the first energy-storing spring 126. Further, the rotatable plate 127 is rotatably disposed on the housing spacer 102 of the device housing, the housing spacer 102 is provided with a rotatable plate stop 1026 and a housing spacer spring retaining groove 1025, the first spring fixing end 1261 is fixed in the housing spacer spring retaining groove 1025, and the rotatable plate stop 1026 is in retaining engagement with the rotatable plate engagement arms 1275-77 to retain the rotatable plate 127 in the energy release position. Further, the housing diaphragm spring limiting groove 1025 is arranged on the turntable blocking platform 1026; the dial engagement arms 1275-77 include oppositely disposed dial engagement arm stop side edges 1277 and dial engagement arm engagement side edges 1275, the dial engagement arm stop side edges 1277 engaging the dial stops 1026, and the dial engagement arm engagement side edges 1275 engaging the first spring follower end 1262.

Preferably, as shown in FIG. 11, the dial engagement arms 1275-77 are hingedly connected to the dial main plate 1270. Further, the dial engagement arms 1275-77 are perpendicular to the dial rotation 1270.

As shown in fig. 3 to 9, the time-delay energy storage mechanism further includes a first bushing 124, the first bushing 124 is rotatably sleeved on the operating shaft 1131 and is inserted between the first energy storage spring 126 and the operating shaft 1131, so as to prevent the operating shaft 1131 from being locked when the first energy storage spring 126 is subjected to torsional energy storage, ensure reliable and stable operation of the time-delay energy storage mechanism, correct the direction of the first energy storage spring 126, and weaken the torsional moment of the first energy storage spring 126 on the operating shaft 1131.

As shown in fig. 6, 9 and 10, the time-delay energy storage mechanism further comprises a gasket 121 disposed on the housing partition 102 of the device housing; as shown in fig. 12, the first liner 124 includes a first liner head 1242 and a first liner body 1241, which are coaxially disposed and connected to each other, an outer diameter of the first liner head 1242 is greater than an outer diameter of the first liner body 1241 and greater than an outer diameter of a first spring screw of the first energy-storing spring 126, the first liner body 1241 is interposed between the first spring screw and the operating shaft 1131, a gasket 121 is disposed on the casing partition 102, the first energy-storing spring 126, the rotary disc 127 and the gasket 121 are sequentially disposed between the casing upper cover 103 and the casing partition 102, the first liner head 1242 cooperates with the casing upper cover 103 to limit axial movement of the first liner 124 along the operating shaft 1131, the first spring screw is disposed between the first liner head 1242 and the rotary disc 127, the rotary disc 127 is rotatably disposed on the gasket 121, the gasket 121 protects the casing partition 102, and prevents the rotary disc 127 from rotating and wearing the casing partition 102, which is beneficial for improving service life. Furthermore, one end of the first bushing body 1241 is connected to the first bushing head 1242, and the other end of the first bushing body 1241 is provided with a plurality of sliding protrusions 1245, the sliding protrusions 1245 abut against the turntable 127, so that the sliding resistance between the first bushing 124 and the turntable 127 is reduced, and the sliding protrusions 1245 can perform plane limit on the warping tendency of the turntable 127 generated under the action of the eccentric torque of the first energy storage spring 126; a plurality of said sliding projections 1245 are preferably distributed uniformly on the free end of the first liner body 1241 in the circumferential direction of the first liner body 1241.

As shown in fig. 9-10, the spacer 121 is provided with a spacer avoidance hole 1211 through which the operating shaft 1131 passes, a spacer counterbore 1212 provided on a side of the spacer 121 facing the turntable 127, and a spacer opening 1216 through which the driving key 128 of the time delay energy storage mechanism passes, an inner diameter of the spacer counterbore 1212 is larger than an inner diameter of the spacer avoidance hole 1211 and smaller than an outer diameter of a turntable main plate 1270 of the turntable 127, the spacer opening 1216 is communicated with the spacer counterbore 1212, and the driving key 128 passes through the spacer opening 1216 into the spacer counterbore 1212, is inserted on the operating shaft 1131, and swings in the spacer counterbore 1212; when the operating device is assembled, the operating shaft 1131 and the real-time energy storage mechanism are assembled together, then the time delay energy storage mechanism is assembled, and the gasket opening 1216 facilitates the assembly of the driving key 128 and the operating shaft 1131, so that the assembly efficiency is improved. Further, the gasket 121 further includes a first gasket clamping groove 1214 and a second gasket clamping groove 1215, where the two gasket clamping grooves are respectively disposed on two opposite side edges of the gasket 121, and are respectively in clamping fit with the housing partition 102 of the device housing.

As shown in fig. 16, the casing partition 102 is provided with a spacer mounting groove 1021, a partition shaft hole 1023 for passing the operating shaft 1131 is provided at a bottom wall of the spacer mounting groove 1021, and two partition locking platforms, namely a first partition locking platform and a second partition locking platform, are further provided in the spacer mounting groove 1021, and respectively engage with the first spacer locking groove 1214 and the second spacer locking groove 1215.

As shown in fig. 3-7 and 9, the latch mechanism may be implemented in various ways as one embodiment of the latch mechanism, and its core function is to lock the delayed energy storage mechanism in the energy storage state in cooperation with the delayed energy storage mechanism.

As shown in fig. 3-6 and 9, the catch member 122 of the latching mechanism is rotatably disposed and includes a catch member main plate 1222 and a catch member locking portion 1223; the turntable 127 also includes turntable locking arms 1273-74 provided on a turntable main plate 1270; when the turntable 127 rotates from the energy release position to the energy storage position, the turntable locking arms 1273-74 press against the locking part 1223 to enable the locking part 122 to rotate towards the unlocking direction to avoid the turntable locking arms 1273-74, and after the turntable locking arms 1273-74 cross the locking part 1223, the locking part 122 rotates towards the locking direction to reset and is in limit fit with the turntable locking arms 1273-74, so that the turntable 127 is limited at the energy storage position, and the time-delay energy storage mechanism is kept in the energy storage state; the unlocking direction and the locking direction are opposite to each other. Further, the latch locking portions 1223 are provided on the side edges of the latch main board 1222 facing the turntable 127.

As shown in fig. 3-7, the plane of rotation of the catch member 122 is perpendicular to the plane of rotation of the dial 127. Of course, the plane of rotation of the latch 122 can also be parallel to the turntable 127, and the configuration of the latch lock 1223 and the manner in which the turntable locking arms 1273-74 mate with the latch lock 1223 can be adjusted accordingly.

As shown in fig. 3-6 and 9, one end of the locking member 122 is a pivoting end of the locking member, and the other end is provided with a locking member driven portion 1221, the locking member 122 is rotatably disposed via the pivoting end of the locking member, and an external force (e.g., the release 134 of the trip mechanism) drives the locking member 122 to rotate in a first direction via the locking member driven portion 1221, so that the locking member locking portion 1223 is unlocked from the turntable locking arms 1273-74. Furthermore, the latch passive portion 1221 is connected to the latch main board 1222 in a bent manner, and a plane of the latch passive portion 1221 intersects a plane of the latch main board 1222. Further, the plane of the latch member passive portion 1221 is perpendicular to the plane of the latch member main board 1222, and the end of the latch member main board 1222 connected to the latch member passive portion 1221 is flush with the side edge of the latch member passive portion 1221.

As shown in fig. 3-6 and 9, the pivotal end of the lock catch is provided with a lock catch shaft hole, the locking mechanism further includes a lock catch shaft 125 fixed on the housing partition plate 102 of the device housing, and the lock catch 122 is rotatably disposed on the lock catch shaft 125 through the lock catch shaft hole.

Preferably, as shown in fig. 6, the locking part 1223 includes a locking part guiding surface and a locking part locking surface, the locking arms 1273-74 press against the locking part guiding surface to rotate the locking part 122 in the unlocking direction, and the locking arms 1273-74 are in limit-fit with the locking part locking surface to lock the turntable 127 in the energy storage position. Further, the locker locking portion 1223 and the locker main board 1222 are coplanar, the locker locking portion 1223 is disposed on a side edge of the locker main board 1222 facing the turntable main board 1270, and the locker locking portion 1223 has a wedge-shaped structure with a larger diameter end connected to the locker main board 1222 and a tip end facing the turntable main board 1270.

Preferably, as shown in fig. 6, the catch member guide surface is a sloped surface that slopes away from the catch member main plate 1222 from the end near the pivotal end of the catch member.

As another embodiment, the latch lock 1223 is not provided with a lock guide surface, the turntable lock arms 1273-74 are provided with a lock guide surface, and when the turntable 127 is rotated from the release position to the stored position, the lock guide surfaces press against the free ends of the latch lock 1223, so that the latch 122 is rotated in the unlocking direction to clear the turntable lock arms 1273-74.

As shown in fig. 3, 5 and 11, the turntable lock arm 1273-74 includes a turntable lock arm fitting surface 1273, a turntable lock arm locking surface 1274 and a turntable lock arm structure surface, the turntable lock arm fitting surface 1273 cooperates with the lock guide surface of the lock member 1223 to drive the lock member 122 to rotate in the unlocking direction, the turntable lock arm locking surface 1274 is in limit fit with the lock member locking surface of the lock member 1223, one end of the turntable lock arm 1273-74 is connected to the turntable main plate 1270, the other end of the turntable lock arm 1273 is provided with the turntable lock arm fitting surface 1273, the turntable lock arm locking surface 1274 and the turntable lock arm structure surface are disposed opposite to each other, and both ends of the turntable lock arm locking surface 1274 and both ends of the turntable lock arm structure surface are respectively connected to the turntable lock arm fitting surface 1273 and the turntable main plate 1270. Further, the dial lock arm locking surface 1274 is parallel to the dial lock arm structure surface; the angle between the dial locking arm stop surface 1274 and the locking arm engagement surface 1273 is less than 90 deg., and the angle between the dial locking arm structure surface and the locking arm engagement surface 1273 is greater than 90 deg..

As shown in fig. 3-6 and 9, the locking mechanism further includes a latch member return spring 123, and the latch member return spring 123 applies a force to the latch member 122 to rotate the latch member 122 in the locking direction for return.

As shown in fig. 9, the latch member restoring elastic member 123 is a tension spring, one end of which is connected to the housing partition 102 of the device housing and the other end is connected to the latch member 122. Further, the locking member 122 further includes a main board limiting groove disposed on the locking member main board 1222, and one end of the tension spring is disposed in the main board limiting groove; the main plate stopper groove and the locking piece locking portion 1223 are respectively provided on a pair of side edges of the locking piece main plate 1222 which are oppositely provided.

As another embodiment, the latch resetting resilient member 123 may also be a torsion spring, which is sleeved on the rotating shaft of the latch 122, and has one end fixed on the casing partition 102 and the other end engaged with the latch main board 1222.

As shown in fig. 3-5, 7-8, and 18-19, in one embodiment of the tripping mechanism, the tripping mechanism is configured to drive the latching mechanism to release the latching engagement with the energy-storing delay mechanism, so as to release the energy from the energy-storing delay mechanism and drive the operating shaft 1131 to rotate to output the opening operation force, preferably, the opening operation is realized by the energy-storing delay mechanism.

As shown in fig. 7-8 and 18, the tripper 134 of the trip mechanism includes a tripper coil assembly 1342 and a tripper ejector rod assembly 1341, and after the tripper 134 receives a trip signal, the tripper ejector rod assembly 1341 operates to drive the locking piece 122 to rotate in the unlocking direction, so that the locking piece 122 releases the locking engagement with the delay energy storage mechanism, and the delay energy storage mechanism releases energy to drive the operating shaft 1131 to rotate from the closing position to the opening position and output an opening operating force. Further, the release rod assembly 1341 is in transmission fit with the locking member driven portion 1221 of the locking member 122.

As shown in fig. 7-8 and 18, the trip unit 134 is preferably a magnetic flux trip unit.

As another example, the release 134 may be a shunt release or a relay.

As shown in fig. 7-8, the trip mechanism further includes a transfer switch 137 connected in series in the power supply circuit of the trip unit 134, and after the trip mechanism receives the trip signal action, the trip unit 134 drives the transfer switch 137 to act to cut off the power supply circuit of the trip unit 134, so as to avoid the situation that the electromagnetic coil of the trip unit 134 is damaged due to long-time energization.

As shown in fig. 7-8, the transfer switch 137 is a microswitch that includes a drive lever that cooperates with the trip unit 134. Further, as shown in fig. 19, the transfer switch 137 includes a switch moving contact, a normally open contact NO and a normally closed contact NC, a first input end of a trip coil of the trip 134 is electrically connected to the normally open contact NO, a second input end of the trip coil is electrically connected to one phase of an external circuit, the normally closed contact NO is idle (i.e., the normally closed contact NO is not electrically connected to a circuit structure other than itself), and the switch moving contact is electrically connected to the other phase of the external circuit, i.e., the switch moving contact and the second input end of the trip coil are electrically connected to the external circuit through a circuit board 135 and a signal interface 136, respectively; when the tripper 134 acts, the tripper ejector rod assembly 1341 ejects out to drive the moving contact of the switch to act so as to make the moving contact of the switch disconnected with the normally open contact NO and closed with the normally closed contact NC.

As shown in fig. 7-8, when the tripper 134 is actuated, the tripper ram assembly 1341 moves relative to the tripper coil assembly 1342 as a whole to drive the locking member 122 to unlock the energy-storage mechanism, and drive the switch 137 to cut off the power supply circuit of the tripper 134.

As shown in fig. 7-8 and 18, the tripper push rod assembly 134 includes a tripper push rod 13411 and a tripper drive arm 13410, one end of the tripper push rod 13411 is movably inserted into the tripper coil assembly 1342, and the other end of the tripper push rod 13411 is fixedly connected to the tripper drive arm 13410, the tripper drive arm 13410 includes a drive arm mounting portion 13410-1 fixedly connected to the tripper push rod 13411 and configured to output a first drive force, and a drive arm driving portion 13410-3 configured to output a second drive force, the first drive force is configured to drive the locking member 122 to operate so as to contact and lock with the time-delay energy storage mechanism (i.e., the drive arm mounting portion 13410-1 is in transmission fit with the locking member 122 to drive the locking member to rotate in the unlocking direction), and the second drive force is configured to drive the transfer switch 137 to operate so as to cut off the power supply circuit of the tripper 134 (i.e., the drive arm driving portion 13410-3 is in triggering fit with the transfer switch 137 so as to trigger the transfer switch 137 to trigger the transfer switch to switch the on/off state. Further, the driving arm mounting portion 13410-1 and the driving arm driving portion 13410-3 are distributed in a ladder shape, that is, the driving arm mounting portion 13410-1 and the driving arm driving portion 13410-3 are located at the step surface of two adjacent steps, and the driving arm driving portion 13410-3 is offset to the side where the trip coil assembly 1342 is located relative to the driving arm mounting portion 13410-1.

As shown in fig. 18, the driving arm mounting portion 13410-1 includes a mounting portion driving surface for outputting a first driving force, the driving arm driving portion 13410-3 includes a driving portion driving surface for outputting the first driving force, and the mounting portion driving surface and the driving portion driving surface are arranged in parallel and perpendicular to the moving direction of the trip top rod 1341.

As shown in fig. 7-8 and 18, the trip actuator driving arm 13410 further includes a driving arm connecting portion 13410-2, the driving arm mounting portion 13410-1, the driving arm connecting portion 13410-2 and the driving arm driving portion 13410-3 are sequentially bent and connected to form a zigzag structure, and a plane where the driving arm mounting portion 13410-1 is located is parallel to a plane where the driving arm driving portion 13410-3 is located. Further, the extension direction of the driving arm connecting portion 13410-2 is parallel to the moving direction of the trip top rod 13411.

As shown in fig. 18, the driving arm mounting portion 13410-1 preferably includes a mounting portion driving plate and a mounting plate insert, one side of the mounting portion driving plate is connected to one end of the mounting plate insert, and the mounting portion insert is connected to the release ejector rod 13411 in an inserting manner, so that the assembly is simple and reliable.

As shown in fig. 7-8 and 18, the trip actuator arm 13410 is preferably a one-piece injection molded structure.

The tripper coil assembly 1342 comprises a tripper coil, a movable iron core, a static iron core, a tripper magnet yoke and a tripper spring, wherein one end of the tripper push rod 13411 inserted into the tripper coil assembly 1342 is fixedly connected with the movable iron core, the tripper spring applies acting force to the movable iron core to separate the movable iron core from the static iron core, and the tripper coil is electrified to generate a magnetic field to attract the movable iron core and the static iron core so as to eject the tripper push rod 13411.

As shown in fig. 7-8, the trip mechanism further includes a circuit board assembly, the circuit board assembly includes a circuit board 135, and a power supply terminal 138, a signal interface 136, and a transfer switch 137, which are respectively disposed on the circuit board 135 and electrically connected thereto, that is, the power supply terminal 138, the signal interface 136, and the transfer switch 137 are all disposed in a printed circuit of the circuit board 135 and are connected in series with each other, the transfer switch 137 is connected in series in the power supply circuit of the trip 134, a terminal of the trip 134 is connected to the power supply terminal, and the signal interface 136 is electrically connected to an external circuit for receiving a trip signal.

As shown in fig. 7-8, the signal interface 136 is preferably a socket to facilitate quick connection with an external circuit, thereby improving connection efficiency.

As shown in fig. 18, the trip unit 134 further includes a trip unit terminal 1343 connected to a trip unit coil of the trip unit coil assembly 1342, and the trip unit terminal 1343 is connected to the power supply terminal 138 by plugging.

As shown in fig. 7-8, the circuit board assembly is disposed on one side of the trip unit 134, the power supply terminal 138, the signal interface 136 and the transfer switch 137 are disposed on the same side of the circuit board 135, the power supply terminal 138 and the signal interface 136 are disposed on one side of the transfer switch 137, and the trip unit 134 is disposed on the other side of the transfer switch 137.

As shown in fig. 3-8 and 17, the reset mechanism is an embodiment of the reset mechanism, and is used for driving the tripping mechanism to reset; specifically, the method comprises the following steps: and the time-delay energy storage mechanism stores energy and drives the tripping mechanism to reset through the resetting mechanism so as to prepare for the next action.

As shown in fig. 3-8, 17, the reset mechanism includes the reset gear 132 that rotates the setting, the utility model discloses after operating device 1 trips the separating brake (also be that release 134 acts and triggers the energy release of time delay energy storage mechanism, time delay energy storage mechanism drive operating device 1 separating brake, operating shaft 1131 rotates to the separating brake position by the on-off position simultaneously), operating shaft 1131 rotates to the on-off position by the separating brake position, drive operating device 1 closes the switch-on, drive carousel 127 rotates to drive first energy storage spring 126 energy storage by releasing the energy position simultaneously, make time delay energy storage mechanism switch to the energy storage state by releasing the energy state, carousel 127 drives reset gear 132 simultaneously and rotates, reset gear 132 drives release 134 and resets, also is that release ejector rod 1341 of drive release 134 resets.

As shown in fig. 4-5, after the rotating disc 127 drives the release 134 to reset through the reset gear 132, the rotating disc continues to rotate to the energy storage position and is disengaged from the reset gear 132, and the reset gear 132 automatically resets; that is, the rotating disc 127 drives the release 134 to reset through the reset gear 132 during the rotation from the release position to the energy storage position, after the release 134 is reset, the rotating disc 127 continues to rotate to the energy storage position, and is disengaged from the reset gear 132 during the rotation, and then the reset gear 132 automatically resets. Further, the reset mechanism further includes a gear reset elastic member 133, and the gear reset elastic member 133 applies force to the reset gear 132 to reset the reset gear 132.

As shown in fig. 7-8, the axis of rotation of the reset gear 132 is parallel to the direction of movement of the trip ram assembly 1341 of the trip unit 134.

In the de-energized state of the delayed energy storage mechanism, as shown in fig. 3, the rotary plate 127 is in the de-energized position, which is engaged with the reset gear 132.

As shown in fig. 3-5 and 7-8, the gear return elastic member 133 is a tension spring, one end of which is connected to the return gear 132, and the other end of which is fixedly disposed. Further, a housing diaphragm spring post 1024 is disposed on the housing diaphragm 102, one end of the gear return elastic member 133 is connected to a portion outside the rotation center of the return gear 132, and the other end is connected to the housing diaphragm spring post 1024. Furthermore, a return gear spring post 1323 is disposed on the gear driving portion 1321 of the return gear 132, one end of the gear return elastic member 133 is connected to the return gear spring post 1323, and the other end is connected to the housing diaphragm spring post 1024.

As another embodiment, the gear return elastic member 133 is a torsion spring, and is disposed coaxially with the rotation axis of the return gear 132, and has one end fixedly disposed on the housing partition 102 and the other end engaged with the return gear 132.

As shown in fig. 3-5, 11 and 17, the turntable 127 includes turntable teeth 1277 provided on a circumferential side of the turntable main plate 1270, and the reset gear 132 includes gear teeth 1322, and the turntable teeth 1277 and the gear teeth 1322 are in meshing engagement. Further, the turntable teeth 1277 and the gear teeth 1322 are sector gears.

As shown in fig. 3-5 and 17, the reset gear 132 includes a gear driving portion 1321, and the reset gear 132 is driven by the rotary table 127 to rotate, and is pressed against the trip jack assembly 1341 by the gear driving portion 1321 to reset the trip jack assembly. Further, the gear driving portion 1321 includes a gear driving surface 1321-0, the gear driving surface 1321-0 is an inclined surface, and the reset gear 132 rotates and presses the tripper ejector rod assembly 1341 through the gear driving surface 1321-0 to reset the tripper ejector rod assembly 1341.

As shown in fig. 17, the axis of rotation of the reset gear 132 is parallel to the direction of movement of the trip unit top bar assembly 1341, and the gear driving surface 1321-0 is a helical surface extending in the axial direction of the reset gear 132. Further, the gear drive face 1321-0 is defined by a positive helical face extending in the axial direction of the reset gear 132.

As another example, the axis of rotation of the reset gear 132 is perpendicular to the direction of travel of the trip unit ram assembly 1341, and the gear driving surface 1321-0 has an involute shape in the cross-section of the reset gear 132.

As shown in fig. 3-5, 7-8, and 17, is one embodiment of the reset gear 132: the reset gear 132 comprises a gear main body 1320, a gear tooth portion 1322, a gear driving portion 1321 and a reset gear spring column 1323, wherein a reset gear shaft hole 1320-0 is arranged in the middle of the gear main body 1320, the gear driving portion 1321 and the gear tooth portion 1322 are respectively arranged at two radial ends of the gear main body 1320, the reset gear spring column 1323 is arranged on the gear driving portion 1321, and the extending direction of the reset gear spring column 1323 is parallel to the rotation axis of the reset gear 132.

As shown in fig. 11, an embodiment of the turntable 127: the turntable 127 comprises a turntable main board 1270, turntable matching arms 1275-76, turntable locking arms 1273-74 and turntable teeth 1277, a turntable shaft hole 1271 and a turntable driven hole 1276 are arranged in the middle of the turntable main board 1270, the turntable driven hole 1276 is a sector hole, the two turntable driven holes 1276 are arranged on two radial sides of the turntable shaft hole 127, the radial inner end of each turntable driven hole 1276 is communicated with the turntable shaft hole 1271, the turntable matching arms 1275-76, the turntable locking arms 1273-74 and the turntable teeth 1277 are distributed on the circumferential side of the turntable main board 1270, the plane of the turntable matching arms 1275-76 is perpendicular to the plane of the turntable main board 1270, and the turntable locking arms 1273-74 and the turntable main board 1270 are coplanar; a pair of side edges of the dial engagement arms 1275-76 are a dial engagement arm engagement side edge 1275 and a dial engagement arm limit side edge 1277, respectively; one end of the turntable locking arm 1273-74 is connected with the turntable main board 1270, and the other end is arranged; the turntable lock arms 1273-74 comprise turntable lock arm matching surfaces 1273, turntable lock arm locking surfaces 1274 and turntable lock arm structural surfaces, one ends of the turntable lock arms 1273-74 are connected with the turntable main board 1270, the other ends of the turntable lock arm matching surfaces 1273 are provided with the turntable lock arm locking surfaces 1274, the turntable lock arm locking surfaces 1274 and the turntable lock arm structural surfaces are arranged in parallel, two ends of the turntable lock arm locking surfaces 1274 and two ends of the turntable lock arm structural surfaces are respectively connected with the turntable lock arm matching surfaces 1273 and the turntable main board 1270, the included angle between the turntable lock arm locking surfaces 1274 and the lock arm matching surfaces 1273 is less than 90 degrees, and the included angle between the turntable lock arm structural surfaces and the lock arm matching surfaces 1273 is more than 90 degrees.

As shown in fig. 7-8 and 18, the trip bar assembly includes a reset ramp 13410-4 that cooperates with the gear drive face 1321-0. Further, the reset slope 13410-4 is formed at a connection between the driving arm mounting portion 13410-1 and the driving arm connecting portion 13410-2.

As another embodiment, the trip unit ejector rod assembly 1341 may not be provided with the reset slope 13410-4, but may be provided with a reset protrusion, and a free end of the reset protrusion is a hemispherical structure and is abutted and matched with the gear driving surface 1321-0 of the reset gear 132.

As shown in fig. 3-5 and 7-8, the reset gear 132 is rotatably disposed on the housing partition 102 of the device housing via a reset gear shaft 131. Further, as shown in fig. 6 and 10, the gasket 121 is provided with a gasket insertion hole 1213; as shown in fig. 16, a partition plate insertion hole 1027 is formed in a bottom wall of the gasket installation groove 1021 of the housing partition plate 102; the gasket insertion hole 1213 is opposite to the partition plate insertion hole 1027, the reset gear shaft 131 passes through the gasket insertion hole 1213 and is inserted into the partition plate insertion hole 1027, and the reset gear 132 is rotatably arranged on the gasket 121, so that the damage to the shell partition plate 102 caused by the rotation of the reset gear 132 is avoided, and the service life of the shell partition plate is prolonged.

As shown in fig. 10, an embodiment of the gasket 121 is: the gasket 121 is of a drop-shaped plate structure; the large-diameter end of the gasket 121 is provided with a gasket avoiding hole 1211, a gasket counterbore 1212 and a gasket opening 1216, the gasket counterbore 1212 and the gasket avoiding hole 1211 are coaxially arranged, the inner diameter of the gasket counterbore 1212 is larger than that of the gasket avoiding hole 1211, one end of the gasket opening 1216 is communicated with the gasket counterbore 1212, and the other end of the gasket opening 1216 is communicated with the outside; a gasket insertion hole 1213 is formed at the small-diameter end of the gasket 121; a pair of side edges of the shim 121 are respectively provided with a first shim slot 1214 and a second shim slot 1215, which are arranged in a staggered manner and are both located between the shim counter bore 1212 and the shim insertion hole 1213.

It should be noted that, in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship that is usually placed when used, and are only for convenience of description, but do not indicate that the device or element that is referred to must have a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish one description from another, and are not to be construed as indicating relative importance.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (12)

1. An automatically resettable trip mechanism includes a time-delay stored energy mechanism and a trip unit (134); the method is characterized in that: the tripping mechanism further comprises a reset gear (132) which is arranged in a rotating mode, the tripper (134) comprises a tripper coil assembly (1342) and a tripper ejector rod assembly (1341) which are matched, and the reset gear (132) is in driving fit with the tripper ejector rod assembly (1341); the tripper ejector rod assembly (1341) is ejected to trigger the delay energy storage mechanism to release energy, and the delay energy storage mechanism drives the reset gear (132) to rotate to drive the tripper ejector rod assembly (1341) to reset when storing energy.

2. The automatically resettable trip mechanism of claim 1, wherein: the reset gear (132) comprises a gear driving part (1321), the reset gear (132) is driven by external force to rotate, and the gear driving part (1321) presses the tripper ejector rod assembly (1341) to reset.

3. The automatically resettable trip mechanism of claim 2, wherein: the gear driving part (1321) comprises a gear driving surface (1321-0), the gear driving surface (1321-0) is an inclined surface, and the reset gear (132) rotates and presses the tripper ejector rod assembly (1341) through the gear driving surface (1321-0) to reset the tripper ejector rod assembly.

4. The automatically resettable trip mechanism of claim 3, wherein: the trip ram assembly (1341) includes a reset ramp (13410-4) that cooperates with the gear drive face (1321-0).

5. The automatically resettable trip mechanism of claim 4, wherein: the tripper ejector rod assembly (1341) comprises a tripper ejector rod (13411) and a tripper driving arm (13410), the tripper driving arm (13410) comprises a driving arm mounting part (13410-1), a driving arm connecting part (13410-2) and a driving arm driving part (13410-3) which are sequentially bent and connected, and a reset inclined plane (13410-4) is arranged at the connecting part of the driving arm mounting part (13410-1) and the driving arm connecting part (13410-2).

6. The automatically resettable trip mechanism of claim 5, wherein: the driving arm mounting part (13410-1), the driving arm connecting part (13410-2) and the driving arm driving part (13410-3) are integrally of a Z-shaped structure, the plane where the driving arm mounting part (13410-1) and the driving arm driving part (13410-3) are located is parallel, the driving arm driving part (13410-3) deviates to the side where the tripper coil assembly (1342) is located relative to the driving arm mounting part (13410-1), and the extending direction of the driving arm connecting part (13410-2) is parallel to the moving direction of the tripper ejector rod assembly (1341).

7. The automatically resettable trip mechanism of claim 3, wherein: the rotating axis of the reset gear (132) is parallel to the moving direction of the tripper ejector rod assembly (1341), and the gear driving surface (1321-0) of the reset gear (132) is a spiral surface extending along the axial direction of the reset gear (132).

8. The automatically resettable trip mechanism of claim 1, wherein: the tripping mechanism further comprises a gear resetting elastic piece (133), and after the external force is relieved, the gear resetting elastic piece (133) drives the resetting gear (132) to reset.

9. The automatically resettable trip mechanism of claim 1, wherein: the reset gear (132) comprises a gear body (1320), a gear driving portion (1321) and gear tooth portions (1322), the gear driving portion (1321) and the gear tooth portions (1322) are distributed on the circumferential side of the gear body (1320), the gear driving portion (1321) is provided with a gear driving surface (1321-0), the gear driving surface (1321-0) is a spiral surface extending along the axial direction of the reset gear (132), and the gear tooth portions (1322) are driven by external force to enable the reset gear (132) to rotate.

10. The automatically resettable trip mechanism of claim 9, wherein: the reset gear (132) further comprises a reset gear spring column (1323), the reset gear spring column (1323) is arranged on the gear driving portion (1321), the axis of the reset gear spring column (1323) is parallel to the rotating axis of the reset gear (132), one end of the gear reset elastic piece (133) is fixedly arranged, and the other end of the gear reset elastic piece is connected to the reset gear spring column (1323).

11. The automatically resettable trip mechanism of claim 1, wherein: the tripper coil assembly (1342) comprises a tripper coil, a static iron core, a movable iron core, a tripper magnet yoke and a tripper spring, wherein the movable iron core is connected with a tripper ejector rod (13411) of the tripper ejector rod assembly (1341), the tripper spring applies acting force to the movable iron core to enable the movable iron core to be separated from the static iron core, and the tripper coil is electrified to generate a magnetic field to enable the movable iron core to overcome the acting force of the tripper spring to be attracted with the static iron core.

12. The automatically resettable trip mechanism of claim 1, wherein: the trip unit (134) is a magnetic flux trip unit.

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