Operating handle and circuit breaker manual operating mechanism handle self-locking structure

Abstract

The utility model relates to a kind of operating handle and the handle self-locking structure of circuit breaker manual operating mechanism handle with the operating handle, it includes base and the handle of rotation installation on base, circuit breaker is connected with handle by linkage mechanism, operating mechanism and locking mechanism are set in handle, operating mechanism includes catch and lock tongue, sliding groove for driving lock tongue action is set on catch, sliding groove is oppositely provided with two side inner walls, and dislocation setting is set in lower pressure boss and lifting boss, catch is respectively pushed drive shaft by lower pressure boss and lifting boss set in sliding groove, increase the stroke of lock tongue without increasing the volume of operating handle, not only make lock tongue more reliable when locking handle, but also more reliable when locking linkage mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of low-voltage electrical apparatus, in particular to a handle of a circuit breaker manual operating mechanism and a handle self-locking structure of the circuit breaker manual operating mechanism. BACKGROUND

[0002] The circuit breaker and other switch electrical apparatus have a handle, in order to facilitate manual operation, an operating handle can be installed on the circuit breaker, especially when the circuit breaker is installed in a switch cabinet, the operating handle can be installed on the cabinet door, and the circuit breaker can be operated to be closed or opened without opening the cabinet door. However, the locking mechanism of the existing operating handle is unreliable, it is difficult to lock the operating handle at the closed position and the open position, and when the operating handle can be installed on the cabinet door, if the operating handle cannot be reliably locked with the switch electrical apparatus in the switch cabinet, the cabinet door can be opened, and further, a dangerous situation can occur. SUMMARY

[0003] The present application aims to overcome the defects of the prior art, and provide an operating handle capable of reliable locking.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0005] An operating handle comprises a base and a rotating handle rotatably installed on the base, an operating mechanism and a locking mechanism are arranged in the rotating handle, the operating mechanism comprises a catch pivotally installed in the rotating handle, the locking mechanism comprises a locking tongue arranged on one side of the rotating handle, the locking tongue is provided with a driving shaft matched with the catch, a sliding groove is arranged on the catch and sleeved on the driving shaft, the inner walls arranged on both sides of the driving shaft are a pressing surface and a pulling surface, respectively, a pressing protrusion and a pulling protrusion are arranged on the pressing surface and the pulling surface, respectively, and the pressing protrusion and the pulling protrusion are arranged in a staggered manner, when the catch rotates, the pressing protrusion and the pulling protrusion arranged in the sliding groove respectively push the driving shaft, so that the driving shaft drives the locking tongue to act to realize the locking and unlocking of the rotating handle.

[0006] Preferably, a first stepped slope is arranged on the side edge of the pressing protrusion close to the pulling protrusion, a second stepped slope is arranged on the side edge of the pulling protrusion close to the pressing protrusion, and the pressing protrusion and the pulling protrusion form a Z-shaped structure with the sliding groove.

[0007] Preferably, the length of the pulling protrusion is greater than the length of the pressing protrusion.

[0008] Preferably, the base is provided with a closed position positioning groove and an open position positioning groove, and the closed position positioning groove and the open position positioning groove are respectively used to correspond to the closed position and the open position of the handle of the switch electrical apparatus, and the locking tongue can be inserted into the closed position positioning groove or the open position positioning groove to block the rotation of the rotating handle.

[0009] Preferably, the lock tongue is provided with a U-shaped driving slot, the driving shaft is connected between the two side walls of the driving slot, the sliding slot on the jumper is also in U-shaped structure, the sliding slot extends to the inside of the driving slot and is sleeved on the driving shaft, the lifting surface is located between the driving shaft and the bottom of the driving slot, and the pressing surface is oppositely arranged on the other side of the driving shaft.

[0010] Preferably, the operating mechanism comprises a jumper and a button which are pivotally installed in the handle, and a first reset spring and a second reset spring which are connected with the jumper and the button respectively; one end of the jumper and the button is buckled with each other, the buckled end of the jumper and the button is provided with a padlock hole, the other end of the jumper is provided with a sliding slot matched with the lock tongue, and the other end of the button is matched with the jumper; when the jumper and the button are buckled, the jumper can be blocked from rotating under the action of the first reset spring, the button can push the jumper to release the buckling of the jumper, the first reset spring drives the end of the jumper provided with the sliding slot to rotate towards the lock tongue, and the other end of the jumper is lifted to expose the padlock hole from the handle.

[0011] A handle self-locking structure of a manual operating mechanism of a circuit breaker, comprising a circuit breaker and the operating handle, the operating handle is installed outside the cabinet door of a switch cabinet, the circuit breaker is installed in the switch cabinet, the circuit breaker is provided with a linkage mechanism connected between the handle of the switch device and the operating handle, when the handle rotates, the linkage mechanism drives the handle of the switch device to rotate to make the circuit breaker close and open, when the jumper of the operating handle drives the lock tongue to lock the handle, the linkage mechanism can be locked, and the cabinet door and the switch cabinet are locked; when the jumper drives the lock tongue to unlock the handle, the linkage mechanism can be unlocked, and the cabinet door and the switch cabinet are unlocked.

[0012] Preferably, the base is provided with a lock plate matched with the linkage mechanism, the handle can drive the linkage mechanism to lock and unlock the lock plate, when the lock tongue unlocks the handle and drives the lock plate to position the linkage mechanism, the cabinet door and the switch cabinet are unlocked; when the lock tongue locks the handle and drives the lock plate to lock the linkage mechanism, the cabinet door and the switch cabinet are locked.

[0013] Preferably, the handle is provided with a support, the linkage mechanism comprises a driving mechanism installed on the switch device and a rotating shaft arranged between the driving mechanism and the handle, one end of the rotating shaft is connected with the driving mechanism, the other end of the rotating shaft is inserted into the support of the handle, and when the lock plate locks the linkage mechanism, the rotating shaft is limited and cannot be pulled out of the support.

[0014] Preferably, the rotating shaft is provided with a radial bolt, the support is provided with a first linkage groove matching the lateral cross-sectional shape of the rotating shaft, and a second linkage groove for accommodating the bolt is arranged on the inner wall of the first linkage groove; the middle part of the lock plate is provided with a lock hole, the rotating shaft and the bolt are inserted into the support through the lock hole, one end of the lock plate is provided with a leg extending to the lock tongue, the other end of the lock plate is connected with a third reset spring, and an inclined driving surface is arranged on the leg; when the jumper drives the slide groove to rotate close to the lock tongue, the lock tongue can push the lock plate to overcome the action of the third reset spring, so that the side edge of the lock hole is moved to one side of the second linkage groove to limit the bolt in the second linkage groove and lock; when the jumper drives the slide groove to rotate away from the lock tongue, the third reset spring makes the side edge of the lock hole away from the second linkage groove to be unlocked.

[0015] Preferably, the driving mechanism comprises a bracket mounted on the switch electric appliance shell, a linkage member arranged on the bracket and connected with the handle of the switch electric appliance, and a connecting rod connected between the linkage member and the rotating shaft, the rotating shaft is fixedly connected with one end of the connecting rod through a fastener after penetrating through the connecting rod, a connecting rod groove is arranged on the other end of the connecting rod, the linkage member is sleeved on the handle of the switch electric appliance and is in sliding fit with the bracket, a linkage shaft is arranged on the linkage member and is in sliding fit in the connecting rod groove of the connecting rod, and the rotating shaft drives the connecting rod to rotate, and the linkage member is driven to move through the linkage shaft.

[0016] Preferably, the base comprises a bottom plate and a rotating table, the handle is mounted on the rotating table, a pivot hole accommodating the support is arranged in the middle part of the rotating table, a gap hole for avoiding the lock tongue is arranged on one side of the pivot hole of the rotating table, the lock plate is arranged between the bottom plate and the rotating table, the lock tongue is matched with the lock plate through the rotating table, two guide plates are arranged on the bottom plate and are opposite to both sides of the lock plate, and a spring plate is arranged on the end of the lock plate away from the lock tongue, and the spring plate is connected with the lock plate through a third reset spring.

[0017] The handle self-locking structure of the manual operating mechanism of the circuit breaker of the application can lock the linkage mechanism when the jumper drives the lock tongue to lock the handle, so that the cabinet door and the switch cabinet are locked; the handle self-locking structure of the manual operating mechanism of the circuit breaker of the application can unlock the linkage mechanism when the jumper drives the lock tongue to unlock the handle, so that the cabinet door and the switch cabinet are unlocked; since the jumper drives the driving shaft through the downward pressing boss and the lifting boss arranged in the slide groove when rotating, the handle self-locking structure of the manual operating mechanism of the circuit breaker of the application can more reliably lock the handle and the linkage mechanism after the stroke of the lock tongue is increased. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the cooperation of the handle and the switch cabinet in the embodiment of the application;

[0019] Figure 2 is a structural schematic diagram of the linkage mechanism in the embodiment of the application;

[0020] Figure 3 is a top view of the handle in the embodiment of the application;

[0021] Figure 4 This is an exploded view of the operating handle of an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the operating handle in an embodiment of the present invention during unlocking;

[0023] Figure 6 This is an embodiment of the invention. Figure 5 A partial cross-sectional view;

[0024] Figure 7 This is a schematic diagram of the operating handle in the locked state according to an embodiment of the present invention;

[0025] Figure 8 This is an embodiment of the invention. Figure 7 A partial cross-sectional view;

[0026] Figure 9 This is a schematic diagram of the locking tongue structure of an embodiment of the present invention;

[0027] Figure 10 This is a schematic diagram of the structure of the rotating shaft in an embodiment of the present invention;

[0028] Figure 11 This is a schematic diagram of the interaction between the rotating shaft and the locking plate when the handle is in the open position according to an embodiment of the present invention. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1 to 11 The given embodiments further illustrate specific implementations of the operating handle created by the present invention. The operating handle created by the present invention is not limited to the descriptions of the following embodiments.

[0030] like Figure 4 As shown in Figure 6, the operating handle of this invention includes a base and a rotary handle 200 rotatably mounted on the base. An operating mechanism and a locking mechanism are provided within the rotary handle 200. The operating mechanism includes a latch 310 pivotally mounted within the rotary handle 200. The locking mechanism includes a locking tongue 410 located on one side of the rotary handle 200. The locking tongue 410 has a drive shaft 430 that engages with the latch 310. The latch 310 has a groove 320 that fits onto the drive shaft 430. The grooves 320 are positioned opposite each other. The inner walls on both sides of the drive shaft 430 are a pressing surface 330 and a lifting surface 340, respectively. The pressing surface 330 and the lifting surface 340 are respectively provided with a pressing boss 331 and a lifting boss 341, and the pressing boss 331 and the lifting boss 341 are staggered. When the buckle 310 rotates, the pressing boss 331 and the lifting boss 341 provided in the slide groove 320 push the drive shaft 430, so that the drive shaft 430 drives the locking tongue 410 to lock and unlock the handle 200.

[0031] The operation handle of the present application comprises an operation mechanism and a locking mechanism, the catch 310 of the operation mechanism cooperates with the driving shaft 430 of the locking tongue 410 of the locking mechanism through the sliding groove 320, when the catch 310 rotates, the driving shaft 430 is pushed through the pressing boss 331 and the pulling boss 341 arranged in the sliding groove 320 respectively, the driving shaft 430 drives the locking tongue 410 to move to realize the locking and unlocking of the handle 200, when the driving shaft 430 is pushed by the sliding groove 320, the stroke of the driving shaft 430 is enlarged, and then the stroke of the locking tongue 410 is enlarged, the locking tongue 210 can lock the handle 200 more reliably without increasing the volume of the operation handle.

[0032] The present application also provides a handle self-locking structure of a circuit breaker manual operation mechanism, comprising a circuit breaker and the operation handle, the operation handle is installed outside the cabinet door 100 of a switch cabinet, the circuit breaker is installed in the switch cabinet, the circuit breaker is provided with a linkage mechanism 500 connected between the switch handle 810 and the handle 200, when the handle 200 rotates, the switch handle 810 is driven to rotate through the linkage mechanism 500 to make the circuit breaker close and open, when the catch 310 drives the locking tongue 410 to lock the handle 200, the linkage mechanism 500 can be locked to lock the cabinet door 100 and the switch cabinet; when the catch 310 drives the locking tongue 410 to unlock the handle 200, the linkage mechanism 500 can be unlocked to unlock the cabinet door 100 and the switch cabinet.

[0033] The handle self-locking structure of the circuit breaker manual operation mechanism of the present application, when the catch 310 drives the locking tongue 410 to lock the handle 200, the linkage mechanism 500 can be locked to lock the cabinet door 100 and the switch cabinet; when the catch 310 drives the locking tongue 410 to unlock the handle 200, the linkage mechanism 500 can be unlocked to unlock the cabinet door 100 and the switch cabinet, because when the catch 310 rotates, the driving shaft 430 is pushed through the pressing boss 331 and the pulling boss 341 arranged in the sliding groove 320, after the stroke of the locking tongue 410 is increased, not only the handle 200 can be locked more reliably, but also the linkage mechanism 500 can be locked more reliably.

[0034] Further, the locking mechanism further comprises a locking plate 420 cooperating with the linkage mechanism 500, the locking plate 420 is arranged in the base to slide and cooperate, and the locking plate 420 is limited in the circumferential direction by the base, the locking plate 420 does not rotate with the handle 200, the locking plate 420 is arranged in parallel with the handle 200, the locking tongue 410 is arranged vertically on one side of the locking plate 420, when the locking tongue 410 moves to lock and unlock the handle 200, the locking tongue 410 can simultaneously drive the locking plate 420 and the linkage mechanism 500 on the circuit breaker to lock and unlock, to lock and unlock the cabinet door 100 and the switch cabinet;

[0035] When the handle 200 is in the open position, the linkage mechanism 500 is unlocked with the lock plate 420, and they do not interfere with each other, so the linkage mechanism 500 can be pulled out from the lock plate 420; when the handle 200 is in the closed position, the linkage mechanism 500 is rotated to the locked position with the lock plate 420, so that the linkage mechanism 500 is locked with the lock plate 420, and the linkage mechanism 500 cannot be pulled out from the lock plate 420, and the cabinet door 100 is locked and cannot be opened;

[0036] When the handle 200 is in the open position, i.e. the linkage mechanism 500 is unlocked with the lock plate 420, the lock plate 420 can be driven to move by the lock tongue 410 to re-lock the linkage mechanism 500 with the lock plate 420, preventing the cabinet door 100 from being opened.

[0037] Referring to Figure 7 -8, when the lock tongue 410 locks the handle 200, the jump buckle 310 drives the sliding groove 320 to rotate close to the lock tongue 410, the lower pressing surface 330 pushes the driving shaft 430 to slide to the lower pressing boss 331 and pushes the driving shaft 430 through the lower pressing boss 331, so that the driving shaft 430 drives the lock tongue 410 to act to lock the handle 200, and at the same time the lock tongue 410 can drive the lock plate 420 to lock the linkage mechanism 500, and the cabinet door 100 is locked with the switch cabinet;

[0038] Referring to Figure 5 -6, when the lock tongue 410 unlocks the handle 200, the jump buckle 310 drives the sliding groove 320 to rotate away from the lock tongue 410, the lifting surface 340 pushes the driving shaft 430 to slide to the lifting boss 341 and pushes the driving shaft 430 through the lifting boss 341, so that the driving shaft 430 drives the lock tongue 410 to act to unlock the handle 200, and at the same time the lock tongue 410 can drive the lock plate 420 to allow the linkage mechanism 500 to be unlocked, and the cabinet door 100 is unlocked with the switch cabinet.

[0039] The handle self-locking structure of the invented circuit breaker manual operating mechanism can further increase the stroke of the lock plate 420 on the basis of increasing the stroke of the lock tongue 410, and the lock plate 420 can be more reliably locked with the linkage mechanism 500, so that the cabinet door 100 can be more reliably locked with the switch cabinet, preventing the cabinet door 100 from being opened. It can be understood that the lock tongue 410 can also lock the linkage mechanism 500 in other forms, or the lock tongue 410 can directly lock the linkage mechanism 500, which all belong to the protection scope of the invention.

[0040] As Figure 1The operating handle of the preferred embodiment is installed outside the cabinet door 100 of the switch cabinet, the switch device 800 of the preferred embodiment is a circuit breaker installed in the switch cabinet, and the switch device handle 810 of the preferred embodiment is a dial type. The operating handle comprises a base and a rotating handle 200 installed on the base for connecting the switch device handle 810. An operating mechanism and a locking mechanism are arranged in the rotating handle 200. The rotating handle 200 is connected with the switch device handle 810 through a linkage mechanism 500. When the rotating handle 200 rotates, the switch device handle 810 is dialled to move linearly to the closed position or the open position through the linkage mechanism 500. The locking mechanism locks the rotating handle 200 at the closed position and the open position. When the rotating handle 200 is locked at the closed position, the locking mechanism can be locked with the linkage mechanism 500, so that the cabinet door 100 of the switch cabinet is locked with the linkage mechanism 500 installed in the switch cabinet, thereby preventing the cabinet door 100 from being opened.

[0041] The operating mechanism comprises a jump buckle 310 pivotally installed in the rotating handle 200. The locking mechanism comprises parallelly arranged locking plates 420 and the rotating handle 200, and a locking tongue 410 vertically arranged at one side of the rotating handle 200. One end of the locking tongue 410 is used to push the locking plates 420 to lock with the linkage mechanism 500. The other end of the locking tongue 410 is provided with a driving shaft 430 matched with the jump buckle 310. A sliding groove 320 is arranged on the jump buckle 310 to cover the driving shaft 430. When the jump buckle 310 rotates, the driving shaft 430 is pushed through the sliding groove 320, so that the driving shaft 430 drives the locking tongue 410 to act. The locking tongue 410 can lock the rotating handle 200 at the closed position or the open position. When the locking tongue 410 locks the rotating handle 200 at the open position, the locking tongue 410 can drive the locking plates 420 to lock with the linkage mechanism 500. When the locking tongue 410 unlocks the rotating handle 200 at the open position, the locking tongue 410 can drive the locking plates 420 to unlock with the linkage mechanism 500, or the locking tongue 410 avoids the locking plates 420, so that the locking plates 420 are reset to realize unlocking by means of the spring structure. When the rotating handle 200 is at the closed position, the locking plates 420 do not rotate with the rotating handle 200, but the linkage mechanism 500 rotates with the rotating handle 200 to the position locked with the locking plates 420. The locking plates 420 themselves can lock the linkage mechanism 500, and the locking tongue 410 does not need to push the locking plates 420 to lock the linkage mechanism. When the rotating handle 200 rotates to the open position, the locking plates 420 automatically unlock the linkage mechanism 500.

[0042] Particularly, the inner walls on both sides of the driving shaft 430 in the sliding groove 320 are respectively the pressing surface 330 and the pulling surface 340, and the pressing surface 330 and the pulling surface 340 are respectively provided with the pressing boss 331 and the pulling boss 341. The pulling boss 341 is arranged at one end of the pulling surface 340 close to the bottom of the sliding groove 320, and the pressing boss 331 is arranged at one end of the pressing surface 330 away from the bottom of the sliding groove 320. Due to the first stepped slope and the second stepped slope respectively formed on the pressing boss 331 and the pulling boss 341, the stroke of the locking tongue 410 and the locking plate 420 can be increased. The increase of the locking tongue 410 can make the locking effect of the rotating handle 200 more reliable, and the increase of the locking plate 420 can make the locking effect of the locking linkage mechanism 500 more reliable, effectively preventing accidental unlocking and opening of the cabinet door 100. It can be understood that the operating handle of the embodiment can also be fixed on the housing of the switchgear 800 instead of being installed on the switch cabinet, and the locking of the locking plate 420 and the linkage mechanism 500 can prevent the operating handle from being removed from the switchgear 800, all of which belong to the protection scope of the present application.

[0043] As shown in Figure 4 The rotating handle 200 is provided with the locking tongue 410 and the locking plate 420. The locking tongue 410 is arranged on one side of the rotating handle 200, and the locking plate 420 is arranged on the other side of the rotating handle 200. The locking tongue 410 is provided with the sliding groove 320, and the locking plate 420 is provided with the linkage mechanism 500. The sliding groove 320 is arranged on one side of the locking tongue 410, and the linkage mechanism 500 is arranged on one side of the locking plate 420. The sliding groove 320 is provided with the pressing surface 330 and the pulling surface 340, and the linkage mechanism 500 is provided with the locking linkage mechanism 500. The pressing surface 330 and the pulling surface 340 are respectively provided with the pressing boss 331 and the pulling boss 341. The pulling boss 341 is arranged at one end of the pulling surface 340 close to the bottom of the sliding groove 320, and the pressing boss 331 is arranged at one end of the pressing surface 330 away from the bottom of the sliding groove 320. Due to the first stepped slope and the second stepped slope respectively formed on the pressing boss 331 and the pulling boss 341, the stroke of the locking tongue 410 and the locking plate 420 can be increased. The increase of the locking tongue 410 can make the locking effect of the rotating handle 200 more reliable, and the increase of the locking plate 420 can make the locking effect of the locking linkage mechanism 500 more reliable, effectively preventing accidental unlocking and opening of the cabinet door 100. It can be understood that the operating handle of the embodiment can also be fixed on the housing of the switchgear 800 instead of being installed on the switch cabinet, and the locking of the locking plate 420 and the linkage mechanism 500 can prevent the operating handle from being removed from the switchgear 800, all of which belong to the protection scope of the present application. Figure 3 As shown in

[0044] Specifically, the operating handle of the embodiment includes a base and a rotating handle 200 rotatably installed on the base. An operating mechanism, a locking mechanism, and a support 210 for connecting the linkage mechanism 500 are arranged in the rotating handle 200. The operating mechanism includes a jump buckle 310, a lock buckle 350, and a button 360 pivotally installed in the rotating handle 200, and first and second return springs 3100 and 3500 connected with the jump buckle 310 and the lock buckle 350, respectively. One end of the jump buckle 310 and the lock buckle 350 are buckled with each other, and the end of the jump buckle 310 and the lock buckle 350 is provided with a padlock hole 370. The other end of the jump buckle 310 is provided with a sliding groove 320 matched with the locking tongue 410, and the other end of the lock buckle 350 is matched with the button 360.

[0045] The snap buckle 310 is provided with a snap groove 311, and the lock buckle 350 is provided with a snap claw 351 matched with the snap groove 311. When the snap claw 351 of the lock buckle 350 is clamped in the snap groove 311, the other end of the lock buckle 350 is limited by the button 360 and the first return spring 3100 is locked in the energy storage state. The lock buckle 350 can block the rotation of the snap buckle 310 under the action of the first return spring 3100. The button 360 can push the lock buckle 350 to release the snap buckle cooperation with the snap buckle 310, so that the first return spring 3100 drives the one end of the snap buckle 310 provided with the sliding groove 320 to rotate towards the lock tongue 410, and the lock tongue 410 is pressed down, and the other end of the snap buckle 310 is lifted up and the padlock hole 370 is exposed from the handle 200. At this time, the lock 410 can be passed through the padlock hole 370 through the lock (not shown in the figure), and the lock tongue 410 and the lock plate 420 can be prevented from rotating back to keep locking respectively. After the lock is removed, the one end of the snap buckle 310 provided with the padlock hole 370 can be pressed to retract into the handle 200, and the one end of the snap buckle 310 provided with the sliding groove 320 can be rotated away from the lock tongue 410, so as to drive the lock tongue 410 and the lock plate 420 to reset and release the locking.

[0046] Preferably, the first return spring 3100 and the second return spring 3500 of the embodiment are both torsion springs, and can also be tension springs or compression springs. In addition, the lock buckle 350 and the first return spring 3100 can also not be provided, and the snap buckle 310 can be rotated and reset under manual operation, which all belong to the protection scope of the present application.

[0047] As shown in Figure 1 The linkage mechanism 500 includes a driving mechanism 520 mounted on the switch appliance 800, and a rotating shaft 510 arranged between the driving mechanism 520 and the handle 200. One end of the rotating shaft 510 is connected with the driving mechanism 520, and the other end of the rotating shaft 510 is inserted into the support 210 of the handle 200. The lock plate 420 of the handle 200 is used for limiting the rotating shaft 510, so that the rotating shaft 510 cannot be pulled out of the support 210, and the rotating shaft 510 and the support 210 are locked, preventing the cabinet door 100 from being opened. When the handle 200 rotates, the support 210 drives the rotating shaft 510 to rotate, and then the driving mechanism 520 drives the switch appliance handle 810 to act. When the lock plate 420 and the rotating shaft 510 are unlocked, the cabinet door 100 is opened, and the rotating shaft 510 is separated from the support 210. Of course, the switch appliance handle 810 can also be rotary, and only the structure of the driving mechanism 520 needs to be adjusted, which all belong to the protection scope of the present application.

[0048] Specifically, as shown in Figure 10As shown in Fig. 11, the lateral section of the rotating shaft 510 is quadrangular, and the rotating shaft 510 is provided with a bolt 511 arranged along the radial direction, the support 210 is provided with a first linkage groove 220 matching the shape of the lateral section of the rotating shaft 510, the inner wall of the first linkage groove 220 is provided with a second linkage groove 221 for accommodating the bolt 511, the lock plate 420 is arranged on one side of the support 210, the lock tongue 410 can drive the lock plate 420 to move to one side of the second linkage groove 221, and the bolt 511 is limited in the second linkage groove 221, so as to lock the rotating shaft 510 and the support 210. Of course, the lateral section of the rotating shaft 510 can also be polygonal or other non-circular shapes. In addition, the rotating shaft 510 can also not be provided with the bolt 511, but a limiting groove corresponding to the lock plate 420 is arranged on the rotating shaft 510, and the limiting is achieved by inserting the lock plate 420 into the limiting groove, which all belong to the protection scope of the present application. It can be understood that the lock plate 420 is indirectly locked with the switch appliance 800 at this time, and when the operating handle is installed on the shell of the switch appliance 800 instead of the cabinet door 100, i.e. without being connected with the switch appliance handle 810 through the linkage mechanism 500, the switch appliance handle 810 is equivalent to the rotating shaft 510 locked by the lock plate 420, and the lock plate 420 is locked with the switch appliance 800, which can prevent the operating handle from being removed from the switch appliance 800.

[0049] Preferably, the middle part of the lock plate 420 is provided with a lock hole 421, the rotating shaft 510 and the bolt 511 are inserted into the support 210 through the lock hole 421, one end of the lock plate 420 is provided with a leg 422 extending to the lock tongue 410, the other end of the lock plate 420 is connected with a third reset spring 4200, an inclined driving surface 423 is arranged on the leg 422, the lock tongue 410 can push the lock plate 420 to overcome the action of the third reset spring 4200, so that the side of the lock hole 421 moves to one side of the second linkage groove 221 to limit the bolt 511 in the second linkage groove 221 for locking, and after the lock tongue 410 is reset, the lock plate 420 is pushed by the third reset spring 4200, so that the side of the lock hole 421 is away from the second linkage groove 221 to achieve unlocking. Of course, the third reset spring 4200 can also not be arranged, and the lock plate 420 can be connected with the lock tongue 410 through a connecting rod structure, and the reciprocating movement of the lock plate 420 is driven by the lock tongue 410. In addition, the lock plate 420 can also not be sleeved around the rotating shaft 510, but be arranged on one side of the rotating shaft 510, which all belong to the protection scope of the present application.

[0050] As shown in Fig. 11, the lateral section of the rotating shaft 510 is quadrangular, and the rotating shaft 510 is provided with a bolt 511 arranged along the radial direction, the support 210 is provided with a first linkage groove 220 matching the shape of the lateral section of the rotating shaft 510, the inner wall of the first linkage groove 220 is provided with a second linkage groove 221 for accommodating the bolt 511, the lock plate 420 is arranged on one side of the support 210, the lock tongue 410 can drive the lock plate 420 to move to one side of the second linkage groove 221, and the bolt 511 is limited in the second linkage groove 221, so as to lock the rotating shaft 510 and the support 210. Of course, the lateral section of the rotating shaft 510 can also be polygonal or other non-circular shapes. In addition, the rotating shaft 510 can also not be provided with the bolt 511, but a limiting groove corresponding to the lock plate 420 is arranged on the rotating shaft 510, and the limiting is achieved by inserting the lock plate 420 into the limiting groove, which all belong to the protection scope of the present application. It can be understood that the lock plate 420 is indirectly locked with the switch appliance 800 at this time, and when the operating handle is installed on the shell of the switch appliance 800 instead of the cabinet door 100, i.e. without being connected with the switch appliance handle 810 through the linkage mechanism 500, the switch appliance handle 810 is equivalent to the rotating shaft 510 locked by the lock plate 420, and the lock plate 420 is locked with the switch appliance 800, which can prevent the operating handle from being removed from the switch appliance 800. Figure 8-9 shows a preferred embodiment of the lock tongue 410, one end of which is provided with an inclined push surface 411 for pushing the lock plate 420, and the other end of which is provided with a U-shaped driving groove 412, the driving shaft 430 being connected between the two side walls of the driving groove 412, the sliding groove 320 on the jumper 310 also being in a U-shaped structure, the sliding groove 320 extending to the inside of the driving groove 412 and being sleeved on the driving shaft 430, the lifting surface 340 being located between the driving shaft 430 and the bottom of the driving groove 412, and the pressing surface 330 being oppositely arranged on the other side of the driving shaft 430. As another embodiment, the driving shaft 430 can be arranged on both sides of one end of the lock tongue 410, protruding from both sides of the lock tongue 410 integrally formed with the lock tongue 410, or one driving shaft 430 passing through the lock tongue 410; the jumper 310 is provided with a U-shaped groove for avoiding the lock tongue 410 at one end thereof, and the sliding groove 320 for cooperating with the driving shaft 430 is arranged on the end of each side wall of the U-shaped groove.

[0051] Preferably, the preferred embodiment of the sliding groove 320, the inner walls of the sliding groove 320 oppositely arranged on both sides of the driving shaft 430 are the pressing surface 330 and the lifting surface 340, respectively, the lifting boss 341 being arranged on one end of the lifting surface 340 close to the bottom of the sliding groove 320, and the pressing boss 331 being arranged on one end of the pressing surface 330 away from the bottom of the sliding groove 320; the pressing boss 331 and the lifting boss 341 are oppositely arranged in a staggered manner, the side edge of the pressing boss 331 close to the lifting boss 341 is provided with a first stepped inclined surface, the side edge of the lifting boss 341 close to the pressing boss 331 is provided with a second stepped inclined surface oppositely arranged with the first stepped inclined surface, and the pressing boss 331 and the lifting boss 341 form a Z-shaped structure with the sliding groove 320. The length of the lifting boss 341 is greater than the length of the pressing boss 331, so that the cooperation is smoother and less likely to be stuck, and the unlocking process is faster.

[0052] As shown in Figure 2 The driving mechanism 520 of the linkage mechanism 500 includes a bracket 560 mounted on the housing of the switch device 800, a linkage member 530 arranged on the bracket 560 and connected with the handle 810 of the switch device 800, and a connecting rod 540 connected between the linkage member 530 and the rotating shaft 510, the rotating shaft 510 driving the connecting rod 540 to rotate, and then driving the handle 810 of the switch device 800 to act.

[0053] Specifically, the rotating shaft 510 is fixedly connected with one end of the connecting rod 540 through the fastener 550 after penetrating the connecting rod 540, the other end of the connecting rod 540 is provided with a connecting rod slot 541, the linkage 530 is sleeved on the handle 810 of the switch device and is in sliding fit with the support 560, the linkage shaft 531 of the linkage 530 is inserted into the connecting rod slot 541 of the connecting rod 540 and is in sliding fit, and the rotating shaft 510 drives the connecting rod 540 to rotate and then drives the linkage 530 to move through the linkage shaft 531.

[0054] With reference to Figure 4 The rotating handle 200 is installed on the rotating table 600, the rotating table 600 is provided with the pivoting hole 610 accommodating the support 210 in the middle part, the rotating table 600 is provided with the let-hole 620 for avoiding the lock tongue 410 on the side corresponding to the pivoting hole 610, the lock plate 420 is arranged between the bottom plate 700 and the rotating table 600, the lock tongue 410 is in fit with the lock plate 420 through the rotating table 600, the two guide plates 710 are arranged on the bottom plate 700 and are opposite to the two sides of the lock plate 420, and the spring plate 720 is arranged on the end of the lock plate 420 away from the lock tongue 410, and the spring plate 720 is connected with the lock plate 420 through the third reset spring 4200.

[0055] The operation process of the handle of the application is as follows:

[0056] When the rotating handle 200 is in the non-self-locking state, that is, the one end of the jump buckle 310 is not lifted and the other end is not pressed, the pulling surface 340 of the jump buckle 310 is in contact with the driving shaft 430 of the lock tongue 410, at this time, the lock tongue 410 is pulled up to the highest point in the movement process under the support of the pulling surface 340, the lock tongue 410 is separated from the lock plate 420, the third reset spring 4200 drives the lock plate 420 to move below the lock tongue 410, the lock plate 420 will not limit the stop of the pin 511 of the rotating shaft 510, and the one end of the rotating shaft 510 with the pin 511 can be pulled out of the support 210 and separated from the rotating handle 200, so that the cabinet door 100 of the switch cabinet can be separated from the rotating shaft 510, and the cabinet door 100 can be opened, and this state is the non-self-locking state.

[0057] When the handle 200 is in the self-locking state, i.e. one end of the jumper 310 is raised and the other end is pressed, the lower surface 330 of the jumper 310 is in contact with the driving shaft 430 of the lock tongue 410, and at this time the lock tongue 410 is pressed to the lowest point in the movement process under the pressure of the plane of the jumper 310. Since the two planes of the jumper 310 and the driving shaft 430 of the lock tongue 410 are the first and second stepped inclined surfaces, respectively, the stroke of the lock tongue 410 in the movement process is increased, and the stroke of the lock plate 420 pushed by the lock tongue 410 is increased. The lock plate 420 slides on the surface of the support 210 under the action of the lock tongue 410, and the increase of the stroke of the lock plate 420 makes the sliding distance of the lock plate 420 on the surface of the support 210 longer in the self-locking state, i.e. the length of the bolt 511 on the rotating shaft 510 in the support 210 is longer, so that the rotating shaft 510 is less likely to slide out of the first linkage groove 220 of the support 210 in the self-locking state, and the reliability of the cabinet door 100 in the self-locking state is enhanced.

[0058] The above is a further detailed description of the present application in combination with specific preferred embodiments, and cannot be regarded as a limitation of the specific implementation of the present application. For ordinary skilled persons in the technical field to which the present application belongs, some simple deductions or substitutions can be made without departing from the concept of the present application, and all of them should be regarded as falling within the protection scope of the present application.

Claims

1. An operating handle, characterized in that: The device includes a base and a handle (200) rotatably mounted on the base. An operating mechanism and a locking mechanism are provided within the handle (200). The operating mechanism includes a latch (310) pivotally mounted within the handle (200). The locking mechanism includes a locking tongue (410) located on one side of the handle (200). The locking tongue (410) has a drive shaft (430) that engages with the latch (310). The latch (310) has a groove (320) that fits onto the drive shaft (430). The groove (320) is located opposite to the sides of the drive shaft (430). The inner walls are a pressing surface (330) and a lifting surface (340). The pressing surface (330) and the lifting surface (340) are respectively provided with a pressing boss (331) and a lifting boss (341), and the pressing boss (331) and the lifting boss (341) are staggered. When the buckle (310) rotates, the pressing boss (331) and the lifting boss (341) provided in the slide groove (320) push the drive shaft (430) respectively, so that the drive shaft (430) drives the locking tongue (410) to lock and unlock the handle (200).

2. The operating handle according to claim 1, characterized in that: The pressing boss (331) has a first stepped slope on the side near the lifting boss (341), and the lifting boss (341) has a second stepped slope on the side near the pressing boss (331) opposite to the first stepped slope. The pressing boss (331) and the lifting boss (341) make the slide groove (320) form a Z-shaped structure.

3. The operating handle according to claim 2, characterized in that: The length of the lifting boss (341) is greater than the length of the pressing boss (331).

4. The operating handle according to claim 1, characterized in that: The base is provided with a closing positioning groove and a closing positioning groove, and the closing positioning groove and the closing positioning groove are respectively used to correspond to the closing position and the opening position of the switch handle (810). The locking tongue (410) can be inserted into the closing positioning groove or the opening positioning groove to block the rotation of the handle (200).

5. The operating handle according to claim 1, characterized in that: The latch (410) is provided with a U-shaped drive groove (412). The drive shaft (430) is connected between the two side walls of the drive groove (412). The slide groove (320) on the jump buckle (310) is also U-shaped. The slide groove (320) extends into the inner side of the drive groove (412) and is sleeved on the drive shaft (430). The lifting surface (340) is located between the bottom of the drive shaft (430) and the drive groove (412). The pressing surface (330) is oppositely arranged on the other side of the drive shaft (430).

6. The operating handle according to claim 1, characterized in that: The operating mechanism includes a latch (350) and a button (360) pivotally mounted in a handle (200), and a first return spring (3100) and a second return spring (3500) respectively connected to the jump latch (310) and the latch (350); one end of the jump latch (310) and the latch (350) are interlocked, and the end of the jump latch (310) that is interlocked with the latch (350) is provided with a padlock hole (370), and the other end of the jump latch (310) is provided with a groove (320) that is interlocked with the latch tongue (410). The other end engages with the button (360); when the latch (350) engages with the snap-on latch (310), it can prevent the snap-on latch (310) from rotating under the action of the first return spring (3100). The button (360) can push the latch (350) to release the snap-on engagement with the snap-on latch (310), so that the first return spring (3100) drives the snap-on latch (310) with the groove (320) to rotate toward the latch tongue (410), while at the same time causing the other end of the snap-on latch (310) to lift up and expose the padlock hole (370) from the handle (200).

7. A self-locking structure for a manual operating mechanism handle of a circuit breaker, comprising a circuit breaker and an operating handle as described in any one of claims 1-6. The operating handle is installed on the outside of the cabinet door (100) of the switchgear, and the circuit breaker is installed inside the switchgear. The circuit breaker is provided with a linkage mechanism (500) connecting the switch handle (810) and the rotary handle (200) of the operating handle. When the rotary handle (200) rotates, it drives the switch handle (810) to rotate through the linkage mechanism (500) to close and open the circuit breaker. When the trip latch (310) of the operating handle drives the locking tongue (410) to lock the rotary handle (200), it can lock the linkage mechanism (500) and lock the cabinet door (100) to the switchgear. When the trip latch (310) drives the locking tongue (410) to unlock the rotary handle (200), it can unlock the linkage mechanism (500) and unlock the cabinet door (100) to the switchgear.

8. The self-locking structure of the manual operating mechanism handle of the circuit breaker according to claim 7, characterized in that: The base is provided with a locking plate (420) that cooperates with the linkage mechanism (500). The handle (200) can drive the linkage mechanism (500) and the locking plate (420) to lock and unlock. When the linkage mechanism (500) and the locking plate (420) are unlocked, the locking tongue (410) locks the handle (200) and can also drive the locking plate (420) to lock the linkage mechanism (500) on the circuit breaker, locking the cabinet door (100) and the switch cabinet. When the locking tongue (410) unlocks the handle (200), it can also drive the locking plate (420) to give way to the linkage mechanism (500), unlocking the cabinet door (100) and the switch cabinet.

9. The self-locking structure of the manual operating mechanism handle of the circuit breaker according to claim 8, characterized in that: The handle (200) is provided with a support member (210). The linkage mechanism (500) includes a drive mechanism (520) installed on the switch (800) and a rotating shaft (510) disposed between the drive mechanism (520) and the handle (200). One end of the rotating shaft (510) is connected to the drive mechanism (520), and the other end of the rotating shaft (510) is inserted into the support member (210) of the handle (200). When the locking plate (420) and the linkage mechanism (500) are locked, the rotating shaft (510) is limited, so that the rotating shaft (510) cannot be pulled out from the support member (210).

10. The self-locking structure of the manual operating mechanism handle of the circuit breaker according to claim 9, characterized in that: The rotating shaft (510) is provided with a radially arranged pin (511), and the support member (210) is provided with a first linkage groove (220) matching the transverse cross-sectional shape of the rotating shaft (510). A second linkage groove (221) for accommodating the pin (511) is provided on the inner wall of the first linkage groove (220). The locking plate (420) has a locking hole (421) in its middle. The rotating shaft (510) and the pin (511) pass through the locking hole (421) and are inserted into the support member (210). One end of the locking plate (420) has a support leg (422) extending towards the locking tongue (410), and the other end of the locking plate (420) is connected to a third return spring. 4200) connection, with an inclined driving surface (423) on the support leg (422); when the jump buckle (310) drives the slide groove (320) to rotate close to the lock tongue (410), the lock tongue (410) can push the lock plate (420) to overcome the action of the third return spring (4200), so that the side of the lock hole (421) moves to one side of the second linkage groove (221) to lock the pin (511) in the second linkage groove (221); when the jump buckle (310) drives the slide groove (320) to rotate away from the lock tongue (410), the third return spring (4200) makes the side of the lock hole (421) move away from the second linkage groove (221) to unlock.

11. The self-locking structure of the manual operating mechanism handle of the circuit breaker according to claim 9, characterized in that: The drive mechanism (520) includes a bracket (560) mounted on the housing of the switch (800), a linkage (530) disposed on the bracket (560) and connected to the handle (810) of the switch (810), and a connecting rod (540) connected between the linkage (530) and the rotating shaft (510). The rotating shaft (510) passes through the connecting rod (540) and is fixedly connected to one end of the connecting rod (540) by a fastener (550). A connecting rod groove (541) is provided at the other end of the connecting rod (540). The linkage (530) is sleeved on the handle (810) and slides with the bracket (560). A linkage shaft (531) is provided on the linkage (530) and slides into the connecting rod groove (541) on the connecting rod (540). When the rotating shaft (510) drives the connecting rod (540) to rotate, the linkage (530) moves through the linkage shaft (531).

12. The self-locking structure of the manual operating mechanism handle of the circuit breaker according to claim 9, characterized in that: The base includes a base plate (700) and a turntable (600). A handle (200) is mounted on the turntable (600). A pivot hole (610) for accommodating a support member (210) is provided in the middle of the turntable (600). A clearance hole (620) for avoiding the bolt (410) is provided on one side of the pivot hole (610) on the turntable (600). A lock plate (420) is disposed between the base plate (700) and the turntable (600). The bolt (410) passes through the turntable (600) and engages with the lock plate (420). Two guide plates (710) are disposed opposite to each other on both sides of the lock plate (420) on the base plate (700), and a spring plate (720) is disposed at the end of the lock plate (420) away from the bolt (410). The spring plate (720) is connected to the lock plate (420) through a third return spring (4200).

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