CN208093399U - Circuit breaker closing locking device - Google Patents

Abstract

The utility model provides a kind of circuit breaker closing locking device, including：Lock housing；At least part of latch hook, latch hook can be pierced by out of lock housing for locking breaker；Lock gall, at least part sliding of lock gall is threaded through in lock housing and can squeeze latch hook, lock gall has locked, when lock gall is slided into lock housing to squeeze latch hook, the locked end of latch hook is expanded because of deformation to lock breaker, lock gall is switched to latched position by unlocked position and is clamped with lock housing, so that lock gall is maintained at latched position；Unlocking mechanism for unlocking lock gall by latched position, when unlocking mechanism acts, lock gall is detached from the clamping with lock housing, and lock gall can switch to unlocked position by latched position, so that latch hook restores shape to be unlocked with breaker.The utility model solves the lockset inconvenient problem with use of breaker in the prior art.

Description

Circuit breaker closing locking device

Technical field

The utility model is related to Safety Technology for Industry fields, in particular to a kind of circuit breaker closing locking device.

Background technology

During industrial operation, switch button control carries and cut-offs the electric current under normal loop condition, usually logical It crosses operator's pressing push-botton operation and carrys out control circuit.Currently used button is miniature circuit breaker, and miniature circuit breaker is to refer to The electric current under normal loop condition is closed, carried and cut-off, and can close, carry before the deadline and cut-off abnormal circuit Under the conditions of electric current Miniature switchgear device.Miniature circuit breaker can protect the components such as power circuit and motor.Mesh The main contacts of preceding miniature circuit breaker typically by manual operation or electronic mode come what is closed a floodgate, pacify by the main contacts mechanism of breaker Equipped with operation handle, operator by stirring operation handle upward or downward, to ensure the combined floodgate or separating brake of breaker.In factory Deng in large-scale operating circuit, when maintenance of equipment, in order to ensure the safety of construction personnel, it is necessary to operating circuit is disconnected, if Breaker is warned without locking, once other unwitting staff's closed circuits, it may occur however that dangerous even personnel wound It dies, there are prodigious security risks.

Prior art CN201320805029.8 provides a kind of miniature circuit breaker safety lock, and lock is blocked using safety lock Hole, then additionally hang up padlock and be latched, although solving the safety interlocking of miniature circuit breaker to a certain extent, still There are cumbersome, cost is higher, and apparent size is larger, may influence to operate mounted on the position of structure constraint, padlock is easy Loss causes the problems such as inconvenient to use.

Utility model content

The main purpose of the utility model is to provide a kind of circuit breaker closing locking devices, to solve open circuit in the prior art The lockset inconvenient problem with use of device.

To achieve the goals above, the utility model provides a kind of circuit breaker closing locking device, including：Lock housing；Latch hook, lock At least part of hook can be pierced by lock breaker out of lock housing；At least part sliding of lock gall, lock gall is worn In lock housing and latch hook can be squeezed, lock gall has locked, when lock gall is slided into lock housing to squeeze lock When hook, the locked end of latch hook is expanded because of deformation to lock breaker, lock gall by unlocked position switch to latched position and with lock Shell is clamped, so that lock gall is maintained at latched position；Unlocking mechanism for unlocking lock gall by latched position, when unlocking mechanism is dynamic When making, lock gall is detached from can switch to unlocked position with the clamping of lock housing, lock gall by latched position so that latch hook restore shape from And it is unlocked with breaker.

Further, the inner wall of lock housing includes with locking bit, lock gall：Courage body has accommodating chamber and is opened in side wall On via；Lock tongue, at least part of lock tongue can pass through via by extended radially out in accommodating chamber and with locking bit locking or Unlock cooperation.

Further, locking bit is the lug boss being arranged on the inner wall of lock housing.

Further, unlocking mechanism includes transfer block, and transfer block is rotatably arranged in accommodating chamber, and transfer block can drive Dynamic lock tongue switches between extended position and retracted position, so that lock gall switches between locked and unlocked positions.

Further, there is lock tongue through-hole, transfer block to have bulge-structure, and bulge-structure is located in through-hole, when lock tongue position When extended position, the hole wall interval of bulge-structure and through-hole is arranged；When transfer block is during rotation, bulge-structure is driven When the inner wall of squeezing through-hole, lock tongue is moved from extended position to retracted position.

Further, lock gall further includes lock tongue return unit, lock tongue return unit abut respectively the one end of lock tongue far from via with The inner wall of courage body.

Further, courage body includes the connected in sequence first sub- courage body and the second sub- courage body, and the first sub- courage body, which has, to be accommodated Chamber and via, the second sub- courage body relative to the first sub- courage body close to latch hook, and the one end of the second sub- courage body far from the first sub- courage body For pressed end, when lock gall squeezes latch hook, latch hook expansion.

Further, there is the outer wall of the second sub- courage body guide groove, a part for latch hook to be located in guide groove and being capable of phase Guide groove is slided；And/or first the outer wall of sub- courage body there is guiding rib, the side wall of lock housing to have for accommodating guiding rib Guide-track groove.

Further, lock housing includes：Tubular shell, locking bit are located on the inner wall of tubular shell；Locating ring, locating ring are set One end of tubular shell is set, latch hook is fixed by locating ring and tubular shell, and the locked end of latch hook passes through locating ring from tubular It is stretched out in shell.

Further, locating ring has a L-shaped catch, and the inner wall of one end of catch and locating ring connects, catch it is another End and the end surfaces of locating ring are arranged to form locating slot, and a part for latch hook is fixed in locating slot.

Further, latch hook includes that the first cantilever arm connected in sequence, linking arm and the second cantilever arm, linking arm are accommodated in In locating slot.

Further, the end of the first cantilever arm and the second cantilever arm has bending structure away from each other.

Further, circuit breaker closing locking device further includes lock gall return unit, and the both ends of lock gall return unit are connected to lock respectively Between courage and locating ring, to provide the reset force moved from latched position to unlocked position for lock gall.

Further, unlocking mechanism further includes lock core, and lock core is pivotably arranged in accommodating chamber, and lock core connects with transfer block driving It connects to drive transfer block to rotate together.

Further, the one end of lock core far from transfer block is solution lock end, and solution lock end has the unlock with solution lock key cooperation Mouthful.

Further, circuit breaker closing locking device further includes baffle ring, and the inner wall of outer wall and accommodating chamber in lock core is arranged in baffle ring Between, so that lock core limit is in courage body.

Further, circuit breaker closing locking device further includes Wireless code sheet, Wireless code sheet lid be located at the opening of accommodating chamber with Identification solution lock key.

Using the technical solution of the utility model, when use, is locked the operation handle of breaker by latch hook so that work Make personnel not operating breaker in the case of with no authorized, to ensure that the safety of the operations such as maintenance.Lock The deformation of hook is realized by the extruding of lock gall, also enables latch hook to lock and unlock open circuit just because of the deformation of latch hook Device.When locked, lock gall squeezes latch hook and makes latch hook generation deformation and expand, to lock on-board the circuit breaker latch hook, simultaneously Lock gall can be clamped with lock housing, so that lock gall is maintained at latched position, so that latch hook is fixed on-board the circuit breaker；When unlocked, Unlocking mechanism releases the clamping relationship between lock gall and lock housing, and lock gall can be free to slide, to the locked end releasing pair of lock gall The extruding of latch hook so that latch hook is restored to the state before deformation, at this point, latch hook can be removed from breaker, to realize Unlock to breaker.

Description of the drawings

The accompanying drawings which form a part of this application are used to provide a further understanding of the present invention, this practicality Novel illustrative embodiments and their description are not constituted improper limits to the present invention for explaining the utility model. In the accompanying drawings：

Fig. 1 shows the explosive view of the circuit breaker closing locking device of the utility model；

Fig. 2 shows internal structure schematic diagram of the circuit breaker closing locking device in Fig. 1 when unlocking；

Fig. 3 show the circuit breaker closing locking device A-A in Fig. 2 to sectional view；

Fig. 4 shows internal structure schematic diagram of the circuit breaker closing locking device in Fig. 1 in locking；

Fig. 5 shows the sectional view of the circuit breaker closing locking device B-B direction in Fig. 4；

Fig. 6 show the circuit breaker closing locking device C-C in Fig. 4 to sectional view；

Fig. 7 shows the sectional view when transfer block rotation of the circuit breaker closing locking device in Fig. 6；And

Fig. 8 shows the structural schematic diagram when circuit breaker closing locking device in Fig. 1 is used cooperatively with breaker.

Wherein, above-mentioned attached drawing includes the following drawings label：

10, lock housing；11, locking bit；12, guide-track groove；13, tubular shell；14, locating ring；20, latch hook；30, lock gall；31, Courage body；311, the first sub- courage body；312, the second sub- courage body；313, guide groove；314, guiding rib；32, via；33, lock tongue；331, Through-hole；34, lock tongue return unit；40, unlocking mechanism；41, transfer block；42, lock core；50, lock gall return unit；60, baffle ring；70, nothing Line code piece；80, breaker.

Specific implementation mode

It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have and the application The normally understood identical meanings of person of an ordinary skill in the technical field.

In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually It is for direction shown in the drawings, or for component itself is on vertical, vertical or gravity direction；Together Sample, it for ease of understanding and describes, " inside and outside " refers to the inside and outside of the profile relative to each component itself, but the above-mentioned noun of locality is simultaneously It is not used in limitation the utility model.

In order to solve the lockset inconvenient problem with use of breaker in the prior art, the utility model provides one kind Circuit breaker closing locking device.

A kind of circuit breaker closing locking device as shown in Figure 1, including lock housing 10, latch hook 20, lock gall 30 and for by lock gall 30 unlocking mechanisms 40 unlocked by latched position, at least part of latch hook 20 can be pierced by out of lock housing 10 breaks for locking Road device 80；At least part sliding of lock gall 30 is threaded through in lock housing 10 and can squeeze latch hook 20, and lock gall 30 has locking bit It sets and unlocked position, when lock gall 30 is slided into lock housing 10 to squeeze latch hook 20, the locked end of latch hook 20 is expanded because of deformation To lock breaker 80, lock gall 30 is switched to latched position by unlocked position and is clamped with lock housing 10, so that lock gall 30 is maintained at Latched position；When unlocking mechanism 40 acts, lock gall 30 is detached from the clamping with lock housing 10, and lock gall 30 can be switched by latched position To unlocked position, so that latch hook 20 restores shape to be unlocked with breaker 80.

Specifically, the operation handle of breaker 80 is locked by latch hook 20 when use so that staff is not awarding Breaker 80 can not be operated in the case of power, to ensure that the safety of the operations such as maintenance.The deformation of latch hook 20 is It is realized by the extruding of lock gall 30, the also deformation just because of latch hook 20 enables latch hook 20 to lock and unlock breaker 80. When locked, lock gall 30 squeezes latch hook 20 so that latch hook 20 generates deformation and expands, to which latch hook 20 is locked in breaker 80 On, while lock gall 30 can be clamped with lock housing 10, so that lock gall 30 is maintained at latched position, so that latch hook 20 is fixed on open circuit On device 80；When unlocked, unlocking mechanism 40 releases the clamping relationship between lock gall 30 and lock housing 10, and lock gall 30 being capable of free skating It is dynamic, the extruding to latch hook 20 is released to the locked end of lock gall 30 so that latch hook 20 is restored to the state before deformation, at this point, lock Hook 20 can be removed from breaker 80, to realize the unlock to breaker 80.

It should be noted that the breaker 80 of the present embodiment is provided with lockhole, latch hook 20 in advance in the both sides of operation handle Both ends be inserted into lockhole in so that circuit breaker closing locking device backstop operation handle action.

As shown in Fig. 2, it includes courage body 31 and lock tongue 33 that the inner wall of lock housing 10, which has locking bit 11, lock gall 30, courage body 31 has The via 32 for having accommodating chamber and being opened on side wall；At least part of lock tongue 33 can pass through via 32 by accommodating chamber internal diameter To stretching and lock or unlock cooperation with locking bit 11.

Specifically, inwardly protruded lug boss is formed on the inner wall of lock housing 10, lug boss is as locking bit 11, protrusion Portion is stop surface close to the side of latch hook 20, and the other side has inclined-plane, correspondingly, the lock tongue 33 of lock gall 30 can be out of courage body 31 It stretches out, when squeezing lock gall 30 so that lock gall 30 acts, lock tongue 33 can be clamped with locking bit 11 so that lock gall 30 is maintained at crowded The latched position of latch hook 20 is pressed, so that circuit breaker closing locking device keeps the locking to breaker 80.

In the present embodiment, unlocking mechanism 40 includes transfer block 41, and transfer block 41 is rotatably arranged in accommodating chamber, is turned Connecing block 41 can drive lock tongue 33 to switch between extended position and retracted position, so that lock gall 30 is in latched position and solution lock-bit Switch between setting.

Specifically, there is through-hole 331, transfer block 41 there is bulge-structure, bulge-structure to be located at through-hole at the middle part of lock tongue 33 In 331, when lock tongue 33 is located at extended position, bulge-structure and the hole wall interval of side of the through-hole 331 far from via 32 are arranged； When transfer block 41 is during rotation, when driving the inner wall of bulge-structure squeezing through-hole 331, lock tongue 33 is from extended position to contracting Return sets movement, so that lock gall 30 can be switched to unlocked position by latched position.

It should be noted that bulge-structure refers to except the maximum solid circle that the pivot center of transfer block 41 is formed Part, which enables transfer block 41 to squeeze lock tongue 33 in rotation, so that lock tongue 33 moves.In brief, transfer block 41 have non-circular section, protrude circular part as bulge-structure.The cross section of the transfer block 41 of the present embodiment is back Shape aciculiform, i.e. both ends are two semicircles, are connected by straight line between two semicircles.Certainly, transfer block 41 can also be rectangle, water chestnut The other shapes such as shape or transfer block 41 are formed by being provided with convex ribs on circular one side.

As shown in Fig. 1, Fig. 6 and Fig. 7, lock gall 30 further includes lock tongue return unit 34, and lock tongue return unit 34 abuts lock tongue respectively The inner wall of 33 one end far from via 32 and courage body 31 so that lock tongue 33 has the reset force to extended position.Work as extruding Lock gall 30 in place when, lock tongue 33 under the action of lock tongue return unit 34 can automatically with locking bit 11 be clamped, to facilitate locking.

In the present embodiment, courage body 31 includes 311 and second sub- courage body 312 of the connected in sequence first sub- courage body, the first son Courage body 311 has accommodating chamber and a via 32, the second sub- courage body 312 relative to the first sub- courage body 311 close to latch hook 20, and the second son The one end of courage body 312 far from the first sub- courage body 311 is pressed end.It is arranged on the end face of the close latch hook 20 of first sub- courage body 311 There is grab, there are two snap-arms, the ends of two snap-arms close to the formation of one end of the first sub- courage body 311 for the second sub- courage body 312 It is clamped with the first sub- courage body 311, when pressing the first sub- courage body 311,311 and second sub- courage body 312 of the first sub- courage body can one With action so that when the second sub- courage body 312 squeezes latch hook 20, latch hook 20 is expanded.

It should be noted that the second sub- courage body 312 is connect with the end face of the first sub- courage body 311, and via 32 is out It is located at the side of the first sub- courage body 311, is interfered to avoid between the second sub- courage body 312 and lock tongue 33.

Optionally, there is guide groove 313, guide groove 313 is along lock gall 30 on the outer wall of the second sub- opposite both sides of courage body 312 The direction of motion extend, it is interior and can be slided relative to guide groove 313 that the part of latch hook 20 is located at guide groove 313, works as lock gall When 30 extruding latch hook 20, latch hook 20 can be expanded along guide groove 313, ensure the stability of device.

There is guiding rib 314 on the outer wall of the opposite both sides of the first sub- courage body 311, correspondingly, in the side of lock housing 10 Guide-track groove 12 is provided on wall, the one end of guide-track groove 12 far from latch hook 20 has guiding surface, facilitates guiding rib 314 to be inserted into and lead In track slot 12, when the first sub- courage body 311 moves, guiding rib 314 can slide in guide-track groove 12, and the first sub- courage body 311 parts for stretching into lock housing 10 have non-circular section, and lock housing 10 has accommodating hole compatible with the section, to prevent Lock gall 30 rotates in lock housing 10.Through the above way so that lock gall 30 can only slide in the predetermined direction, ensure The normal work of breaker blocking device.

As shown in Figure 1, lock housing 10 includes tubular shell 13 and locating ring 14, locking bit 11 is located at the inner wall of tubular shell 13 On；One end of tubular shell 13 is arranged in locating ring 14, and latch hook 20 is fixed by locating ring 14 and tubular shell 13, and latch hook 20 Locked end passes through locating ring 14 to be stretched out out of tubular shell 13.

Specifically, the side of locating ring 14 is provided with buckle, at the end of the close latch hook 20 of the guide-track groove 12 of lock housing 10 Portion is provided with the larger blocked hole that is open, by being connected in blocked hole so that locating ring 14 is mounted on the close of lock housing 10 On the end face of latch hook 20.The inner ring of locating ring 14 is also equipped with hole and latch hook 20 is stretched out from the hole of locating ring 14.

Optionally, for the tool of locating ring 14 there are two the catch of L-shaped structure, one end of two L-shaped structures is interior with locating ring 14 Circle connection, the other ends of two L-shaped structures is to the direction of the inner ring of remotely located circle 14 and is parallel to the end face of locating ring 14 and stretches Go out, and there are gap between catch and the end face of locating ring 14, which is locating slot, and latch hook 20 is around being located on locating slot Afterwards, lock housing 10 is stretched out by inner ring.

In the present embodiment, latch hook 20 is single pole structure comprising the first cantilever arm connected in sequence, linking arm and second Cantilever arm, linking arm is arc-shaped and is accommodated in locating slot.It is formed between first cantilever arm and the second cantilever arm and accommodates the second son The accommodation space of courage body 312, and the distance between the first cantilever arm and the second cantilever arm are gradual along the direction far from lock housing 10 Reduce, the end of the first cantilever arm and the second cantilever arm has the bending structure away from accommodation space bending, and bending structure can It is plugged in the lockhole of breaker 80.Latch hook 20 is that elastic component enables latch hook 20 automatic extensive when not squeezed by lock gall 30 It is multiple to shrink.

As shown in Figures 1 to 5, circuit breaker closing locking device further includes lock gall return unit 50, the both ends point of lock gall return unit 50 It is not connected between lock gall 30 and locating ring 14, to provide the reset force moved from latched position to unlocked position for lock gall 30. The avoiding space of evacuation lock gall return unit 50, the inner ring of locating ring 14 are formed between two snap-arms of the second sub- courage body 312 With inwardly projecting flange, one end of lock gall return unit 50 is connected on flange, and the other end is connected to the first sub- courage body 311 On end face so that when lock tongue 33 is switched to retracted position, lock gall 30 can be under the action of lock gall return unit 50 to far from lock The direction of hook 20 moves, so that locked end no longer squeezes latch hook 20, latch hook 20 restores to shrink, and circuit breaker closing locking device can It is disassembled from breaker 80.

As shown in Figure 1, unlocking mechanism 40 further includes lock core 42, lock core 42 is pivotably arranged in accommodating chamber, lock core 42 with turn Block 41 is connect to be drivingly connected to drive transfer block 41 to rotate together.Transfer block 41 has square attaching apertures, and lock core 42 is close to transfer block There is link block, link block to be inserted into connecting hole for 41 end face so that lock core 42 can drive transfer block 41 to rotate together, lock core 42 one end far from transfer block 41 are solution lock end, and solution lock end has the solution fore shaft with solution lock key cooperation.In the close of lock core 42 It solves and is arranged with baffle ring 60 on the side wall of fore shaft, there is the opening of the accommodating chamber of the first sub- courage body 311 annular groove, lock core 42 to install When in accommodating chamber, baffle ring 60 can be contained on annular groove so that baffle ring 60 can play the installation of lock core 42 axial fixed Position effect.

In the present embodiment, Wireless code sheet 70, Wireless code sheet 70 and accommodating chamber are also covered in the opening of accommodating chamber Inner wall is clamped, when it is computer key to solve lock key, whether computer key is by reading the information matches in Wireless code sheet 70, from And determine locking or unlocking to the rotary motion of computer key.

The course of work of the circuit breaker closing locking device of the present embodiment is as follows：

Unlocking condition：As shown in Fig. 2, Fig. 3 and Fig. 7, at this time if you need to carry out correct operation to breaker 80, operating personnel make It is inserted into lock core 42 with solution lock key and is rotated with movable lock core 42, transfer block 41 is driven to rotate, the on-circular cross-section rotation of transfer block 41 Lock tongue 33 is set to retract, lock tongue 33 is no longer fastened on the locking bit 11 of lock housing 10 at this time, work of the lock gall 30 in lock gall return unit 50 It under, is moved to the direction far from lock housing 10, latch hook 20 makes latch hook 20 retract relative to sliding in guide groove 313, and latch hook 20 moves back Go out the lockhole of breaker 80,80 safety interlock system of breaker and solution lock key can be removed at this time, to be carried out to breaker 80 Operation is realized and is unlocked；

Blocking：As shown in Fig. 4, Fig. 5, Fig. 6 and Fig. 8, the first sub- courage body 311 is pressed, lock tongue 33 is supported with locking bit 11 It connects, since locking bit 11 has inclined-plane so that lock tongue 33 inside contracts, and then lock tongue 33 stretches out simultaneously under the action of lock tongue return unit 34 It is fastened on the locking bit 11 of lock housing 10, makes lock gall 30 that can not move axially, since lock gall 30 is moved to close to 10 direction of lock housing, The locked end of lock gall 30 squeezes latch hook 20, makes it in 313 intramedullary expansion of guide groove, to which latch hook 20 is connected to the lockhole of breaker 80 It is interior, make operating personnel that can not stir operation handle upward or downward, realizes locking.

It can be seen from the above description that the above embodiments of the present invention achieve the following technical effects：

1, the lockset inconvenient problem with use of breaker in the prior art is solved；

2, degree of integration is high, compact-sized；

3, easy to operate, esy to use, safe and reliable.

Obviously, above-mentioned described embodiment is only the embodiment of the utility model part, rather than whole realities Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work The every other embodiment obtained should all belong to the range of the utility model protection.

It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet Include " when, indicate existing characteristics, step, work, device, component and/or combination thereof.

It should be noted that term " first " in the description and claims of this application and above-mentioned attached drawing, " Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that using in this way Data can be interchanged in the appropriate case, so that presently filed embodiment described herein can be in addition to illustrating herein Or the sequence other than those of description is implemented.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (17)

1. a kind of circuit breaker closing locking device, which is characterized in that including：

Lock housing (10)；

At least part of latch hook (20), the latch hook (20) can be pierced by out of the lock housing (10) for locking breaker (80)；

At least part sliding of lock gall (30), the lock gall (30) is threaded through in the lock housing (10) and can squeeze the lock Hook (20), the lock gall (30) have locked, when the lock gall (30) sliding into the lock housing (10) When squeezing the latch hook (20), the locked end of the latch hook (20) is expanded because of deformation to lock the breaker (80), institute It states lock gall (30) to be switched to the latched position by the unlocked position and be clamped with the lock housing (10), so that the lock gall (30) it is maintained at the latched position；

Unlocking mechanism (40) for unlocking the lock gall (30) by the latched position, when the unlocking mechanism (40) act When, the lock gall (30) is detached from the clamping with the lock housing (10), and the lock gall (30) can be switched to by the latched position The unlocked position, so that the latch hook (20) restores shape to be unlocked with the breaker (80).

2. circuit breaker closing locking device according to claim 1, which is characterized in that the inner wall of the lock housing (10) has locking Position (11), the lock gall (30) include：

Courage body (31), with accommodating chamber and the via (32) being opened on side wall；

At least part of lock tongue (33), the lock tongue (33) can pass through the via (32) by radially being stretched in the accommodating chamber Go out and locks or unlocks cooperation with the locking bit (11).

3. circuit breaker closing locking device according to claim 2, which is characterized in that the locking bit (11) is to be arranged described Lug boss on the inner wall of lock housing (10).

4. circuit breaker closing locking device according to claim 2, which is characterized in that the unlocking mechanism (40) includes transfer block (41), the transfer block (41) is rotatably arranged in the accommodating chamber, and the transfer block (41) can drive the lock tongue (33) switch between extended position and retracted position, so that the lock gall (30) is in the latched position and the unlocked position Between switch.

5. circuit breaker closing locking device according to claim 4, which is characterized in that the lock tongue (33) has through-hole (331), The transfer block (41) has bulge-structure, and the bulge-structure is located in the through-hole (331), when the lock tongue (33) is located at When the extended position, the hole wall interval of the bulge-structure and the through-hole (331) is arranged；When the transfer block (41) is turning In dynamic process, when the bulge-structure being driven to squeeze the inner wall of the through-hole (331), the lock tongue (33) is by the stretching position It sets to the retracted position and moves.

6. circuit breaker closing locking device according to claim 5, which is characterized in that the lock gall (30) further includes that lock tongue resets Part (34), the lock tongue return unit (34) abut the one end of the lock tongue (33) far from the via (32) and the courage body respectively (31) inner wall.

7. circuit breaker closing locking device according to claim 2, which is characterized in that the courage body (31) includes connected in sequence First sub- courage body (311) and the second sub- courage body (312), the first sub- courage body (311) have the accommodating chamber and the via (32), the described second sub- courage body (312) relative to the described first sub- courage body (311) close to the latch hook (20), and described second The one end of sub- courage body (312) far from the described first sub- courage body (311) is pressed end, when the lock gall (30) squeezes the latch hook (20) when, latch hook (20) expansion.

8. circuit breaker closing locking device according to claim 7, which is characterized in that

There is the outer wall of the second sub- courage body (312) guide groove (313), a part for the latch hook (20) to be located at the guiding It can slide in slot (313) and relative to the guide groove (313)；And/or

There is the outer wall of the first sub- courage body (311) guiding rib (314), the side wall of the lock housing (10) to have for accommodating State the guide-track groove (12) of guiding rib (314).

9. the circuit breaker closing locking device according to any one of claim 2 to 8, which is characterized in that lock housing (10) packet It includes：

Tubular shell (13), the locking bit (11) are located on the inner wall of the tubular shell (13)；

One end of the tubular shell (13) is arranged in locating ring (14), the locating ring (14), and the latch hook (20) passes through described Locating ring (14) is fixed with the tubular shell (13), and the locked end of the latch hook (20) passes through the locating ring (14) from institute It states in tubular shell (13) and stretches out.

10. circuit breaker closing locking device according to claim 9, which is characterized in that the locating ring (14) has L-shaped gear Piece, one end of the catch are connect with the inner wall of the locating ring (14), the other end of the catch and the locating ring (14) End surfaces be arranged to form locating slot, a part for the latch hook (20) is fixed in the locating slot.

11. circuit breaker closing locking device according to claim 10, which is characterized in that the latch hook (20) includes being sequentially connected with The first cantilever arm, linking arm and the second cantilever arm, the linking arm is accommodated in the locating slot.

12. circuit breaker closing locking device according to claim 11, which is characterized in that first cantilever arm and described second The end of cantilever arm has bending structure away from each other.

13. circuit breaker closing locking device according to claim 9, which is characterized in that the circuit breaker closing locking device further includes The both ends of lock gall return unit (50), the lock gall return unit (50) are connected to the lock gall (30) and the locating ring (14) respectively Between, to provide the reset force moved from the latched position to the unlocked position for the lock gall (30).

14. circuit breaker closing locking device according to claim 4, which is characterized in that the unlocking mechanism (40) further includes lock Core (42), the lock core (42) are pivotably arranged in the accommodating chamber, and the lock core (42) connects with the transfer block (41) driving It connects to drive the transfer block (41) to rotate together.

15. circuit breaker closing locking device according to claim 14, which is characterized in that the lock core (42) is far from the switching One end of block (41) is solution lock end, and the solution lock end has the solution fore shaft with solution lock key cooperation.

16. circuit breaker closing locking device according to claim 14, which is characterized in that the circuit breaker closing locking device further includes Baffle ring (60), the baffle ring (60) is arranged between the outer wall and the inner wall of the accommodating chamber of the lock core (42), so that described Lock core (42) limit is in the courage body (31).

17. circuit breaker closing locking device according to claim 14, which is characterized in that the circuit breaker closing locking device further includes Wireless code sheet (70), Wireless code sheet (70) lid are located at the opening of the accommodating chamber to identify solution lock key.