CN101609768A - The handle lock device of circuit-breaker and circuit-breaker - Google Patents
The handle lock device of circuit-breaker and circuit-breaker Download PDFInfo
- Publication number
- CN101609768A CN101609768A CNA2009101426284A CN200910142628A CN101609768A CN 101609768 A CN101609768 A CN 101609768A CN A2009101426284 A CNA2009101426284 A CN A2009101426284A CN 200910142628 A CN200910142628 A CN 200910142628A CN 101609768 A CN101609768 A CN 101609768A
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- China
- Prior art keywords
- circuit
- locking closure
- breaker
- handle
- handle portion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/10—Means to prevent accidental or unauthorised actuation with locking caps or locking bars
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
- H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock
- H01H9/282—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock
- H01H9/283—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock the part being removable
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Breakers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides the handle lock device of circuit-breaker and the circuit-breaker of this handle lock device is housed.The handle lock device of circuit-breaker of the present invention constitutes: be provided with locking closure, constitute by having flexual material by this locking closure, be integrally formed as the H font by the parallel a pair of arm member of devices spaced apart and at the binding parts that pars intermedia connects this a pair of arm member; On the opposed inside face of the arm member of the leading section side of this locking closure, be respectively equipped with the wall of the handle portion of handle and hollow out the projection that the hole engages, and be provided with the peristome that embeds above-mentioned lid and the holding section that engages with peristome in the end of the base end part side arm parts of locking closure; Inwards push the end of arm member of the base end part side of locking closure, make interval expansion between two arm members of leading section of arm member of front, sandwich the handle portion of the handle of circuit-breaker from both sides, thus, make the arm member of base end part side engage, handle lock is fixed on off position or closed circuit position with the peristome of lid.
Description
Technical field
The operation that the present invention relates to be used for circuit-breakers such as Inturruptor for sub-line, earth leakage circuit breakers is installed with the handle lock (handle lock) that handle lock fixes on off state and closed circuit state, and the circuit-breaker that is provided with this handle lock device.
Background technology
The handle lock device of circuit-breaker is carried out switching manipulation absent-mindedly in order to prevent circuit-breaker, will operate with handle locking (fixing) in closed circuit (connection) position or (disconnection) position of opening circuit, and it can not be operated.
Figure 13 A-13C to Figure 19 A-19B represents the structure of the handle lock device in the past shown in the patent documentation 1.
Figure 13 A-13C is the figure of structure that represents the handle locking closure of handle lock device in the past, and wherein Figure 13 A is a front elevation, Figure 13 B be the A of Figure 13 A to side view, Figure 13 C is the B-B line sectional view of Figure 13 A.Shown in Figure 13 A-13C, locking closure 20 is provided with arm 20A, the 20B of pair of parallel, and the lower end is connected to form U word shape.Be provided with long along the vertical direction guide 21 highlightedly in the outside (left side) of an arm 20A, and, be formed with the shrinkage pool vertical 22 on the top of this guide 21 with paper.In addition, in the both sides, bottom of arm 20A, be formed with the hook groove 23 shown in Figure 13 C.Have again, on the lateral surface of arm 20A, 20B, be respectively arranged with the fitting portion 26 of L word shape, and, on arm 20A, 20B both sides' medial surface, be respectively arranged with protuberance such shown in Figure 13 C 25 and step 24.Shown in Figure 13 B, be provided with mortise lock hole 27, it runs through the fitting portion 26 and the arm 20B both sides on Figure 13 A right side.
As shown in figure 14, in circuit-breaker, operating grip is carried out switching manipulation to the switching mechanism of inside, and handle portion 9 is connected with the front end of this operating grip, and described handle portion 9 is outstanding from the peristome 4A of the lid 4 on the top of the covering box body 5 of circuit-breaker.Circuit-breaker 1 is provided with not shown switch lever in inside, by being that fulcrum makes its rotation with the one end, switching mechanism is opened and closed, and in the end of the opposition side of the fulcrum side of this switch lever, its front end combines with the connected operating grip of described handle portion 9.Therefore, make handle portion 9 stir up or down, can manually carry out switch switching mechanism by manual action.In addition, be formed with the wall of in Figure 14, being dug through at handle portion 9 and hollow out hole 9A along left and right directions.This wall is set, and to hollow out hole 9A be in order to prevent handle portion 9 distortion when handle is carried out ester moulding, and reduce the amount of resin that needs.
As shown in figure 14, if handle portion 9 is stirred upward, then circuit-breaker becomes closed circuit (connection) state.Under this state, when the handle of lock-in circuit circuit breaker, make that the upper end of opening of arm 20A, 20B of locking closure 20 is the top, open its front end slightly, shown in dotted arrow 28, sandwich handle portion 9 from both sides by arm 20A, 20B, make that the protuberance 25 be located at two arm inboards is chimeric to hollow out hole 9A to wall.Stage portion 24 is embedded into along the profile of handle portion 9.
Thus, as shown in figure 15, the arm of locking closure 20 engages with handle portion 9, and the jut 30 of arm 20A, 20B is compressed by the edge portion of bottom of peristome 4A of the lid of circuit-breaker, and therefore, handle portion 9 is fixed, and can not stir, can the lock operation handle.
As shown in figure 16, handle portion 9 is being stirred downwards, make circuit-breaker be (disconnection) state that opens circuit, under the situation of lock handle, with locking closure 20 from the counter-rotating of the state of Figure 14, make arm 20A, 20B open side the end down, and open the gap of this open end slightly, shown in dotted arrow 29, sandwich handle portion 9 from both sides by arm 20A, 20B, make the protuberance 25 chimeric walls of arm hollow out hole 9A to handle portion 9.Then, in the peristome 4A with the upper end insert cover of locking closure 20.
Thus, as shown in figure 17, the arm of locking closure 20 and handle portion 9 are chimeric, and, the jut 30 of arm 20A, 20B is compressed by the edge portion on peristome 4A top of the lid of circuit-breaker, therefore, and under this state, even desire towards top push-up handle hand 9, handle portion 9 also is fixed, and must not stir.
Get back to Figure 13 C, why be provided with a plurality of protuberances 25, be in order to make no matter the handle portion 9 of off state or closed circuit state lower handle towards on direction or direction down, protuberance 25 all is entrenched in above-mentioned wall just and hollows out the hole.In addition, to form " ヘ " font also be for the same reason to the step 24 of bottom.
Like this, when the handle portion 9 of the operating grip of the circuit-breaker that will engage locking closure 20 is locked, shown in Figure 18 A, 18B and Figure 19 A, 19B, locker 31 is embedded locking closures 20.
The handle portion 9 that Figure 18 the is illustrated in operating grip process of locking to closed circuit (connection) state of the circuit-breaker of top that has been struck, the handle portion 9 that Figure 19 the is illustrated in operating grip process of locking to (disconnection) state that opens circuit of the circuit-breaker of below that has been struck.
Locking shown in Figure 18 A under closed circuit state at first, embeds the locking closure 20 that engages with handle portion 9 from the top with locker 31, makes that the groove 34 of the guide 21 of arm 20B of locking closure 20 and locker 31 is chimeric.Then, by this locker 31 of further pushing, its lower end fitting portion 26 such and locking closure 20 shown in Figure 18 B is chimeric up to making, and utilizes locker 31 to keep locking closure 20 from the outside.By being crossed over, the hook 10A of padlock 10 passes the mortise lock hole 32 of this locker 31 and mortise lock hole 27 both sides of locking closure 20 lock, the locking closure 20 that engages with the handle portion 9 of circuit-breaker is locked by padlock 10 by locker 31, can not take place because of removing the situation of the locking of operating grip because of carelessness.
Figure 19 indication circuit circuit breaker process of locking under the state of (disconnection) that opens circuit shown in Figure 19 A, embeds locker 31 from the below of the locking closure 20 that engages with the handle portion 9 of circuit-breaker, and is in addition identical with the situation of Figure 18, therefore, and detailed.
Like this, the handle lock device of circuit-breaker in the past is provided with by having flexual material and constitutes and form the locking closure of U word shape, but the handle portion intercalation of the operating grip of circuit-breaker is in two arms of this locking closure, two arms at locking closure are respectively equipped with protuberance and jut, protuberance is outstanding relative to each other the setting in two arm inboards, and the wall that can be embedded in above-mentioned handle portion hollows out the hole, jut is provided with along the Width of arm is outstanding in the root side of two arms, and, when making protuberance be fitted to wall to hollow out in the hole, embed above-mentioned peristome, join with the edge portion of peristome.Only by locking closure being sandwiched the handle portion of circuit-breaker, lock handle simply just.
In addition, in said structure, be provided with by having flexual material and constitute and form the locker of U word shape, and the padlock with hook, but locking closure forms intercalation in two arms of this locker, is provided with groove at an arm of locker, this flute profile becomes root from arm up to the end, and can be chimeric with the guide of an arm that is located at locking closure, be penetrated with the mortise lock hole respectively at another arm of locking closure and another arm of locker, the hook of above-mentioned padlock can connect this mortise lock hole.Thus, even the handle portion of circuit-breaker is not provided with the mortise lock hole in advance, also can lock handle.Use handle portion not have the user of the circuit-breaker in mortise lock hole, when specification changes suddenly, can tackle at once by previous status, very convenient.
Patent documentation 1: Japanese kokai publication hei 09-270224 communique
In above-mentioned handle lock device in the past, when the locking closure that will form the U font is installed to the handle portion of operating grip of circuit-breaker, in order easily to push parallel arm front end open, form extremely thin wall with the arm of ester moulding, so that make the pliability of locking closure become big.Therefore, locking closure can not be guaranteed sufficient rigidity and elastic strength, not going up under the padlock state, only applies very little external force, and the locking closure that is installed in handle portion will come off from handle (handle portion) simply, has problems at aspects such as operability, reliabilities.In addition, owing to be the structure that only utilizes locking closure not lock,, need make up with locker usually, and hang padlock, also have unworkable problem for lock handle reliably.
Summary of the invention
A problem of the present invention is, a kind of handle lock device of circuit-breaker is provided, it can solve the problem of such existing apparatus, locking closure is easy to be installed to the handle of circuit breaker, and can improve the locking closure rigidity, the locking closure of make installing can not come off from handle because of very little external force, only locking closure lock handle fully just.
Another problem of the present invention is, the circuit-breaker of the handle lock device that the invention described above is housed is provided.
In order to solve above-mentioned problem, in an embodiment of the invention, the handle lock device of circuit-breaker comprises:
Box body, it takes in the switching mechanism of circuit-breaker;
Lid, it covers this box body;
Handle, it is provided with handle portion, and this handle portion is formed with wall in the side parallel with plane of rotation and hollows out the hole at the outstanding leading section of the peristome that passes this lid, by rotation above-mentioned switching mechanism is carried out switching manipulation,
The handle lock device of this circuit-breaker is characterised in that:
Be provided with locking closure, this locking closure is by having flexual material, by the parallel a pair of arm member of devices spaced apart, and is integrally formed as the H font at the binding parts that pars intermedia connects this a pair of arm member;
On the opposed inside face of the arm member of the leading section side of this locking closure, be respectively equipped with the wall of the handle portion of above-mentioned handle and hollow out the projection that the hole engages, and, be provided with the holding section that engages with the ora terminalis of the peristome of above-mentioned lid in the end of the arm member of the base end part side of above-mentioned locking closure;
Inwards direction is pushed the end of the base end part side arm parts of above-mentioned locking closure, make interval expansion between the end of arm member of leading section side, sandwich the handle portion of the handle of foregoing circuit circuit breaker from both sides, thus, making projection on the arm member of the leading section side be located at above-mentioned locking closure hollow out the hole with the wall of above-mentioned handle portion engages, above-mentioned locking closure is installed on the handle portion of above-mentioned handle, the holding section of the arm member of base end part side is sticked in the ora terminalis of the peristome of above-mentioned lid, thus, the handle lock with circuit-breaker fixes on off position or closed circuit position.
In this invention, lateral surface in the end of the arm member of the base end part side of above-mentioned locking closure is provided with engaging protrusion, internal face at the peristome of above-mentioned lid is provided with engaging recessed part, when the handle portion of the handle that locking closure is mounted to the foregoing circuit circuit breaker, make the engaging protrusion of arm member of base end part side of above-mentioned locking closure be engaged to above-mentioned lid peristome engaging recessed part and block and end.
In addition, in this invention, be provided with that constitute can be from the U font locker of the outside intercalation of above-mentioned locking closure, under with the state of this locker intercalation, the hook of padlock inserted break-through be located at mortise lock hole on locking closure and the locker, lock at above-mentioned locking closure.
In order to solve above-mentioned another problem, in an embodiment of the invention, circuit-breaker comprises handle lock device, and this handle lock device is used for the handle lock of circuit-breaker is fixed on off position or closed circuit position, and this circuit-breaker is characterised in that:
Described handle lock device is any handle lock device of the invention described above.
According to the present invention, the peristome of the handle portion of locking closure and the handle of circuit-breaker and the lid of circuit-breaker engages, lock handle connects 2 parallel arm members at pars intermedia and forms the H font, therefore, improve rigidity even thicken the thickness of the arm member that forms with the pliability material, the end of arm member that also can be by pushing the base end part side is a fulcrum with the coupling part, than the interval of the arm member that is easier to expand the leading section side, therefore, locking closure is easy to the installation of handle.And owing to improve the rigidity of locking closure, be installed under the state of handle,, can improving reliability even how much be subjected to also difficult drop-off of external force.
Description of drawings
Figure 1A-1D represents the structure of the locking closure that the present invention uses, wherein, Figure 1A be front elevation, Figure 1B be left surface figure, Fig. 1 C be among Figure 1A along the sectional view of c-c line, Fig. 1 D is a stereogram.
Fig. 2 A-2B represents that wherein, Fig. 2 A is front elevation (back view) with locking closure counter-rotating shown in Figure 1, and Fig. 2 B is a stereogram.
Fig. 3 is the stereogram of the locker structure of expression the present invention use.
Fig. 4 is the partial perspective view of amplifying the peristome of the lid of representing application circuit-breaker of the present invention.
Fig. 5 A-5B is used to illustrate the installation method of the locking closure under on-state of the present invention, and wherein, to be expression be installed to the stereogram of the state before the circuit-breaker with locking closure to Fig. 5 A, and Fig. 5 B is the key diagram of the installation method of locking closure.
Fig. 6 A-6B is used to illustrate the installation method of the locking closure under on-state of the present invention, and wherein, Fig. 6 A is a stereogram of representing locking closure to be installed to the circuit-breaker state, and Fig. 6 B is the sectional view that amplifies the mounting portion of expression locking closure.
Fig. 7 is the key diagram that is used to illustrate the installation method of the locker under on-state of the present invention.
Fig. 8 is the expression stereogram that passes through the state that locker locks under on-state of the present invention.
Fig. 9 A-9B is used to illustrate the installation method of the locking closure under off-state of the present invention, and wherein, to be expression be installed to the stereogram of the state before the circuit-breaker with locking closure to Fig. 9 A, and Fig. 9 B is the key diagram of the installation method of locking closure.
Figure 10 A-10B is used to illustrate the installation method of the locking closure under off-state of the present invention, and wherein, Figure 10 A is the stereogram of representing locking closure to be installed under the state of circuit-breaker, and Figure 10 B is the sectional view that amplifies the mounting portion of expression locking closure.
Figure 11 is the key diagram that is used to illustrate the installation method of the locker under off-state of the present invention.
Figure 12 is the expression stereogram that passes through the state that locker locks under off-state of the present invention.
Figure 13 A-13C is the figure that is illustrated in the structure of the locking closure that uses in the handle lock of circuit-breaker in the past, and wherein, Figure 13 A is that side view, Figure 13 B are that the A of Figure 13 A is the sectional view along the B-B line of Figure 13 A to view, Figure 13 C.
Exploded perspective view when the handle locking closure beyond Figure 14 is to use is locked in closed circuit state with circuit-breaker.
Figure 15 is that expression utilizes in the past locking closure circuit-breaker to be locked in stereogram under the state of closed circuit state.
Exploded perspective view when Figure 16 is to use in the past locking closure that circuit-breaker is locked in off state.
Figure 17 is the stereogram of expression when utilizing in the past locking closure that circuit-breaker is locked in off state.
Figure 18 A-18B represents to use locking closure and the process of locker when circuit-breaker is locked in closed circuit state in the past, wherein, Figure 18 A is the stereogram that the indication circuit circuit breaker is locked in the state midway of closed circuit state, and Figure 18 B is the stereogram that the indication circuit circuit breaker has been locked in closed circuit state.
Figure 19 A-19B represents to use locking closure and the process of locker when circuit-breaker is locked in off state in the past, wherein, Figure 19 A is the stereogram that the indication circuit circuit breaker is locked in the state midway of off state, and Figure 19 B is the stereogram that the indication circuit circuit breaker has been locked in off state.
Symbol description is as follows:
1: circuit-breaker,
11: the box body of circuit-breaker,
12: the lid of circuit-breaker,
13: the peristome of lid,
18: the handle portion of the handle that switching manipulation is used,
18a: the wall of handle portion hollows out the hole,
2: locking closure,
21A, 21B: arm member,
22: link parts,
21-1A, 21-1B: leading section side arm parts,
21-2A, 21-2B: base end part side arm parts,
23A, 23B: projection,
24A, 24B: the guiding raised line,
25A, 25B: engaging protrusion,
26-1,26-2: the mortise lock hole,
3: locker,
34A, 34B: gathering sill,
36-1,36-2: mortise lock hole.
Embodiment
Embodiments of the present invention are described with reference to the accompanying drawings.
Figure 1A-1D to Figure 12 represents the structure of handle lock device of the circuit-breaker of embodiments of the invention.
Figure 1A-1D represents the structure of the handle locking closure (being designated hereinafter simply as " locking closure ") that the present invention uses, wherein, Figure 1A be front elevation, Figure 1B be its left surface figure, Fig. 1 C be among Figure 1A along the sectional view of c-c line, Fig. 1 D is its stereogram.
Locking closure 2 of the present invention is by a pair of arm member 21A, the 21B of the spaced and parallel configuration of being separated by, and the binding parts 22 that connect this a pair of arm member in the centre, is integrally formed as the H font by the pliability resin.Link being positioned at of a pair of arm member 21A, 21B on the opposed inside face of leading section side arm parts 21-1A, 21-1B on top of parts 22, be respectively equipped with a pair of engaging protrusion 23A, 23B, to engage with the operation of the circuit-breaker that the following describes handle portion with handle.
At leading section side arm parts 21-1A, the lateral surface of 21-1B is respectively equipped with guiding raised line 24A, 24B, in addition, at arm member 21A, the base end part side arm parts 21-2A that is positioned at the bottom that links parts 22 of 21B, on the lateral surface of 21-2B, be respectively equipped with a pair of engaging protrusion 25A, 25B, to engage with engaging recessed part on the inwall of the peristome of the lid that is located at circuit-breaker described below, and, on the base end part side arm parts 21-2A in left side, be provided with two mortise lock hole 26-1 that are used for the break-through padlock, 26-2 (with reference to Figure 1B), on the front/rear end of the base end part side arm parts 21-2B on right side, be respectively equipped with hook groove 27-1 and 27-2 (with reference to Fig. 1 C, Fig. 1 D).This hook groove 27-1 and 27-2 are used to tie up the band of the direction board that makes handle lock timing conduct represent usefulness etc.Further, be formed with holding section 28A, the 28B that engages with the ora terminalis of the peristome 13 of the lid of hereinafter described circuit-breaker in the bottom of arm member 21-2A, the 21-2B of base end part side.
Fig. 2 A-2B represents to make reverse up and down state when rear side is seen of the locking closure 2 among Fig. 1, and wherein, Fig. 2 A is a back view, and Fig. 2 B is a stereogram.
Face side at locking closure 2 shows " ON " printed words, and the indication circuit circuit breaker is locked at on-state (with reference to Figure 1A), and side shows " OFF " printed words overleaf, and the indication circuit circuit breaker is locked at off-state (with reference to Fig. 2 A).
Fig. 3 is the stereogram of expression with the structure of the locker 3 of locking closure 2 uses.Locker 3 constitutes reverse U shape by last slice 32 upper ends that connect two lateral plate 31A, 31B.Connect the bottom of the front of lateral plate 31A, 31B by link piece 33, suppress the bottom expansion of two lateral plates.On two lateral plate 31A, 31B, be provided with gathering sill 34A, 34B, it runs through two lateral plates respectively, chimeric with the guiding raised line of locking closure 2, as mentioned above, on the base end part side arm parts 21-2B of locking closure 2, be provided with mortise lock hole 26-1,26-2, on lateral plate 31B, be provided with mortise lock hole 36-1,36-2, it is provided with the position, when locker 3 is engaged to locking closure 2, with above-mentioned mortise lock hole 26-1, position that 26-2 is relative.
Fig. 4 is the local stereogram that amplifies the operation of indication circuit circuit breaker with the peristome 13 of the outstanding lid 12 of the handle portion of handle.Omit handle portion in the figure.Lid 12 covers the box body 11 of the switching mechanism (not shown) that is used to take in circuit-breaker 1, operation is outstanding from peristome 13 with the handle portion 18 (not expression among Fig. 4) of handle, on interior sidewall surface 13A, the 13B of peristome 13, be provided with engaging recessed part 15A, 15B (at this, only illustrate 15B), this engaging recessed part 15A, 15B is used for be located at above-mentioned locking closure 2 on engaging protrusion 25A, 25B engage.
Shown in Fig. 1 C, why be provided with a plurality of projection 23A and 23B, be under off state or closed circuit state, the handle portion 18 of handle is no matter still descend direction towards last direction, and projection 23A and 23B can both be entrenched in described wall just and hollow out in the hole.
Below, use the locking closure 2 and the locker 3 that constitute like this, the locking means of the operation of circuit-breaker with handle is described.
At first, Fig. 5 A, the locking process of 5B-Fig. 8 indication circuit circuit breaker under on-state describe at this point.
As shown in Figure 5, lid 12 covers on the box body 11 of the handle (not shown) of taking in switching mechanism and switching mechanism being carried out switching manipulation, the handle portion 18 that is connected with handle that switching manipulation is used is outstanding from the peristome 13 of above-mentioned lid 12, under the on-state of circuit-breaker, above-mentioned handle portion 18 is stirred towards the top.
For locking closure 2 being installed on the handle portion 18 that places above-mentioned position, shown in Fig. 5 B, be the surface with the front of locking closure 2 (face that shows ON), with pointing the lower end of clamping base end part side arm parts 21-2A and 21-2B, push by outside-in shown in the arrow.Thus, base end part side arm parts 21-2A and 21-2B press displacement like that shown in the dotted line, follow this action, leading section side arm parts 21-1A that becomes one with the arm member 21-2A and the 21-2B of this base end part side and 21-1B be by displacement like that shown in the dotted line, the interval expansion of its front end.
The leading section side arm parts 21-1A and the 21-1B that are expanded so at interval are pressed into handle portion 18 sides, shown in Fig. 5 A dotted line, sandwich the handle portion 18 of circuit-breaker 1 from the outside by two arm members.When sandwiching, if discharge pushing to base end part side arm parts 21-2A and 21-2B, then leading section side arm parts 21-1A and 21-1B return to original position from the both sides of handle portion 18, by leading section side arm parts grip handle portion, and, the projection 23A of its medial surface, 23B are fitted to the arm cavern part 18a of handle portion 18, can make locking closure 2 engage with handle portion 18.Then, engage with the following ora terminalis of the peristome 13 of the lid 12 of circuit-breaker by the holding section with the bottom of the base end part side arm parts 21-2A of locking closure 2 and 21-2B, locking closure 2 is installed on the lid 12 and handle portion 18 of circuit-breaker as shown in Figure 6A.
Like this, if make locking closure 2 engage with handle portion 18, then locking closure 2 is by peristome 13 supportings of handle portion 18 and lid 12, therefore, even under this state, desire to make handle portion 18 to move downwards, handle portion 18 is locked in on-position firmly by locking closure 2, definitely can not stir, and can prevent that handle portion 18 is struck absent-mindedly.
Locking closure 2 is being installed under the state of circuit-breaker 1, as handle portion 18 local that Fig. 6 B amplifies the indication circuit circuit breaker, it is chimeric that the projection 23A of the leading section side arm parts of locking closure 2 and the wall of handle portion 18 hollow out hole 18a, the upper surface of another projection 23A and handle portion 18 joins, leading section side arm parts 21-1A and 21-1B engage with handle portion 18 by 2, so locking closure 2 is improved with the power that engages of handle portion 18.
And locking closure 2 is compared with locking closure in the past, thickens the thickness of arm member 21, improves its rigidity.Thus, the locking closure 2 that engages with handle portion 18 can not be subjected to very little external force and just break away from handle portion 18 owing to improved its rigidity, can reduce the danger that comes off because of because of carelessness, can improve the reliability of handle lock.In addition, even improved the rigidity of locking closure 2, but because locking closure 2 forms the H font, shown in Fig. 5 B, by pushing the end of base end part side arm parts 21-2A and 21-2B, can make leading section side arm parts 21-1A and 21-1B towards the opposition side displacement simply, easily locking closure 2 be installed to handle portion 18.
According to the present invention, as shown in Figure 6A, even only locking closure 2 is installed to the also operation handle of lock-in circuit circuit breaker fully of handle portion 18, but, only under such state, if deliberately apply big external force, just can unload locking closure 2, therefore, the danger that exists locking to come off.
Under the situation of implementing locking fully, as shown in Figure 7, at the locking closure 2 that is installed on handle portion 18, the chimeric locker 3 in side is pressed into position shown in Figure 8 from it.Like this, the outside of locking closure 2 is covered by locker 3 fully, and therefore, protection locking closure 2 avoids being subjected to the external force effect, further improves reliability.Further improve at needs under the situation of reliability, as shown in Figure 8, the hook 61 of padlock 6 can be inserted the mortise lock hole 36-2 of the below of passing locker 3 and the mortise lock hole 26-2 that is positioned at the locking closure 2 of the position relative with it, lock.
Operation under the off state of circuit-breaker is with the locking means of handle such as Fig. 9-shown in Figure 12, and is identical with locking means under the above-mentioned on-state basically.
Under the off-state of circuit-breaker 1, shown in Fig. 9 A, below the handle portion 18 that is connected with handle is allocated in the peristome 13 of lid 12.When locking closure 2 is mounted to this handle portion 18, make this locking closure 2 towards from on-state shown in Figure 5 towards, on above-below direction, rotate 180 degree, counter-rotating up and down, shown in Fig. 9 B, the display surface of " OFF " is towards the surface.
Identical with the installation under on-state, by the base end part side arm parts 21-2A of locking closure 2 and the end of 21-2B are inwards pushed, being positioned at the leading section side arm parts 21-1A of below and the front interval of 21-1B enlarges, shown in dotted arrow among Fig. 9 A, be mounted to handle portion 18 from the outside, push by release, by locking closure 2 grip handle portions 18.
Like this, if locking closure 2 is mounted to handle portion 18, the locking closure 2 that then is installed to circuit-breaker 1 as shown in figure 10, one of being located among projection 23A, the 23B of inboard of leading section side arm parts 21-1A and 21-1B wall with handle portion 18, to hollow out hole 18a chimeric, engages with handle portion 18.In addition, because the holding section of the front end of base end part side arm parts 21-2A, the 21-2B of locking closure 2 engages with the ora terminalis of the peristome 13 of the lid 12 of circuit-breaker 1, so locking closure 2 combines with handle portion 18 securely.Further, be provided with under the situation of engaging protrusion 25A, 24B at the lateral surface of base end part side arm parts 21-2A and 21-2B, it engages with engaging recessed part 15A, 15B that shown in Figure 4 being located at covered on the madial wall of 12 peristome 13, can further improve engaging power.
Like this, if locking closure 2 is mounted to the handle portion 18 of the circuit-breaker that is in off-state, then handle portion 18 by this locking closure 2 stop its upward stir operation, operation can be fixed on off-state with handle lock.
Even apply big external force to this locking closure 2 because of carelessness in order to make, it can not come off from handle portion 18, as shown in figure 11, can be from the outside of locking closure 2 chimeric locker 3.Chimeric method is identical with the situation of above-mentioned on-state.
As shown in figure 12, when locking closure 2 is advanced in locker 3 complete intercalations, if the hook 51 of padlock 5 being inserted the mortise lock hole 36-1 of top of break-through lockers 3 and mortise lock hole 26-1 (figure cannot see) of the locking closure 2 that is arranged in the position relative with it locks, then only otherwise open padlock, locker 3 just can not break away from locking closure 2, therefore, can be more thorough and the handle used of lock operation safely.
Above with reference to description of drawings embodiments of the invention, but the present invention is not limited to the foregoing description.Can do all changes in the technology of the present invention thought range, they all belong to protection scope of the present invention.
Claims (4)
1. the handle lock device of a circuit-breaker, it comprises:
Box body, it takes in the switching mechanism of circuit-breaker;
Lid, it covers this box body; With
Handle, it is provided with handle portion, and this handle portion is formed with wall in the side parallel with the face that rotates and hollows out the hole at the outstanding leading section of the peristome that passes this lid, by rotation described switching mechanism is carried out switching manipulation,
The handle lock device of this circuit-breaker is characterised in that:
Be provided with locking closure, this locking closure is by having flexual material, by the parallel a pair of arm member of devices spaced apart, and is integrally formed as the H font at the binding parts that pars intermedia connects this a pair of arm member;
On the opposed inside face of the leading section side arm parts of this locking closure, be respectively equipped with the wall of the handle portion of described handle and hollow out the projection that the hole engages, and, be provided with the holding section that engages with the ora terminalis of the peristome of described lid in the end of the base end part side arm parts of described locking closure;
Inwards direction is pushed the end of the base end part side arm parts of described locking closure, make interval expansion between the end of arm member of leading section side, sandwich the handle portion of the handle of described circuit-breaker from both sides, thus, making projection on the arm member of the leading section side be located at described locking closure hollow out the hole with the wall of described handle portion engages, described locking closure is installed on the handle portion of described handle, the holding section of the arm member of base end part side is sticked in the ora terminalis of the peristome of described lid, thus, the handle lock with circuit-breaker fixes on off position or closed circuit position.
2. the handle lock device of circuit-breaker according to claim 1 is characterized in that:
Lateral surface in the end of the base end part side arm parts of described locking closure is provided with engaging protrusion, internal face at the peristome of described lid is provided with engaging recessed part, when the handle portion of the handle that locking closure is installed on described circuit-breaker, make the engaging protrusion of arm member of base end part side of described locking closure engage and fix with the engaging recessed part of the peristome of described lid.
3. the handle lock device of circuit-breaker according to claim 1 and 2 is characterized in that:
Be provided with and constitute and this locker to be intercalated under the state of described locking closure from the locker of the U font of the outside intercalation of described locking closure, the hook of padlock is inserted break-through be located at mortise lock hole on locking closure and the locker, lock.
4. a circuit-breaker has the handle lock device that the handle lock of circuit-breaker is fixed on off position or closed circuit position, and this circuit-breaker is characterised in that:
Described handle lock device is the handle lock device of each described circuit-breaker in the described claim 1～3.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-157820 | 2008-06-17 | ||
| JP2008157820A JP2009301993A (en) | 2008-06-17 | 2008-06-17 | Handle lock device of circuit breaker |
| JP2008157820 | 2008-06-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101609768A true CN101609768A (en) | 2009-12-23 |
| CN101609768B CN101609768B (en) | 2012-11-14 |
Family
ID=41483462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101426284A Active CN101609768B (en) | 2008-06-17 | 2009-06-02 | Circuit breaker and handle locking device thereof |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2009301993A (en) |
| KR (1) | KR101465267B1 (en) |
| CN (1) | CN101609768B (en) |
| TW (1) | TWI371052B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109087834A (en) * | 2017-06-13 | 2018-12-25 | 三菱电机株式会社 | Circuit-breaker |
| CN111344827A (en) * | 2017-11-17 | 2020-06-26 | 株式会社荏原制作所 | Locking bolt mounting piece for circuit breaker |
| CN112397324A (en) * | 2019-08-15 | 2021-02-23 | 长城电器集团浙江科技有限公司 | Low-voltage circuit breaker safety lock |
| CN113243036A (en) * | 2018-11-20 | 2021-08-10 | 西门子能源全球有限公司 | Insulation device and measuring transducer comprising an insulation device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6150378B2 (en) * | 2012-12-25 | 2017-06-21 | テンパール工業株式会社 | Handle lock device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6142738U (en) * | 1984-08-24 | 1986-03-19 | 三菱電機株式会社 | Handle locking device with lock |
| JPH0643987Y2 (en) * | 1989-04-19 | 1994-11-14 | 春日電機株式会社 | Circuit breaker handle lock device |
| JP3760504B2 (en) * | 1996-04-01 | 2006-03-29 | 富士電機機器制御株式会社 | Circuit breaker handle lock device |
-
2008
- 2008-06-17 JP JP2008157820A patent/JP2009301993A/en active Pending
- 2008-09-03 KR KR1020080086559A patent/KR101465267B1/en active IP Right Grant
-
2009
- 2009-06-02 CN CN2009101426284A patent/CN101609768B/en active Active
- 2009-06-10 TW TW098119490A patent/TWI371052B/en not_active IP Right Cessation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109087834A (en) * | 2017-06-13 | 2018-12-25 | 三菱电机株式会社 | Circuit-breaker |
| CN109087834B (en) * | 2017-06-13 | 2022-02-18 | 三菱电机株式会社 | Circuit breaker |
| CN111344827A (en) * | 2017-11-17 | 2020-06-26 | 株式会社荏原制作所 | Locking bolt mounting piece for circuit breaker |
| CN113243036A (en) * | 2018-11-20 | 2021-08-10 | 西门子能源全球有限公司 | Insulation device and measuring transducer comprising an insulation device |
| CN113243036B (en) * | 2018-11-20 | 2024-05-07 | 西门子能源全球有限公司 | Insulation device and measuring transducer having insulation device |
| CN112397324A (en) * | 2019-08-15 | 2021-02-23 | 长城电器集团浙江科技有限公司 | Low-voltage circuit breaker safety lock |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009301993A (en) | 2009-12-24 |
| KR101465267B1 (en) | 2014-11-26 |
| CN101609768B (en) | 2012-11-14 |
| KR20090131234A (en) | 2009-12-28 |
| TW201001473A (en) | 2010-01-01 |
| TWI371052B (en) | 2012-08-21 |
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Address after: Saitama Prefecture, Japan Patentee after: FUJI ELECTRIC FA COMPONENTS & SYSTEMS Co.,Ltd. Address before: Tokyo, Japan Patentee before: FUJI ELECTRIC FA COMPONENTS & SYSTEMS Co.,Ltd. |
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