CN103903883B - Enabling interlocking mechanism - Google Patents
Enabling interlocking mechanism Download PDFInfo
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- CN103903883B CN103903883B CN201310373954.2A CN201310373954A CN103903883B CN 103903883 B CN103903883 B CN 103903883B CN 201310373954 A CN201310373954 A CN 201310373954A CN 103903883 B CN103903883 B CN 103903883B
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Abstract
The invention discloses a kind of enabling interlocking mechanism, it includes the interlock that a door opener one is in transmission connection with described door opener, described door opener includes a door lock, described interlock includes the blocking lock electrically connected with an electricity cabinet and a drive mechanism, one end of described drive mechanism is affixed with described door lock, the other end of described drive mechanism and one controls component activity and connects, described control parts are integral with described blocking lock shape, described control parts are for controlling the action of described drive mechanism, make when described door lock is off, described blocking lock is off-state.The present invention opens the door interlocking mechanism's simple in construction, easy to operate, safe and reliable, is prevented the hidden danger of charged maloperation by the design of interlock and door opener, further ensures the life security of ore deposit underground labour.
Description
Technical field
The present invention relates to a kind of mine flameproof and intrinsic safety type multi-circuit vacuum electromagnetic starter, especially relate to
And the enabling interlocking mechanism of this starter.
Background technology
Mine flameproof and intrinsic safety type multi-circuit vacuum electromagnetic starter is widely used in explosion risk gas
The underground coal mine of body (methane mixture), rated voltage is at 1.14KV, 3.3KV, and frequency is 50Hz,
The electric power system of the three-phase alternating current isolated neutral of rated current 800A～2400A is controlled, main
To be used as power supply and protection.
Enabling interlocking mechanism is a kind of conventional mining equipment, for controlling the logical of electrical equipment circuit under ore deposit
Disconnected.When maintenance, door lock is opened, and interlocking releases, and door can be opened, because of scram button and door lock
Between do not set interlocking, if maintainer now because of carelessness for pressing scram button, door lock end of incoming cables is still
Having electricity, have the hidden danger having an accident, this is the requirement not meeting safety regulations in coal mine at underground coal mine environment.
Summary of the invention
The technical problem to be solved in the present invention is to overcome enabling interlocking mechanism traditional in prior art
In simply connected structure, easily charged maloperation and the defect such as potential safety hazard is big occur, it is provided that a kind of interlocking that opens the door
Mechanism.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of enabling interlocking mechanism, including a door opener, its feature is, it also includes one with described
The interlock that door opener is in transmission connection, described door opener includes one and a door lock, described
Locking device includes the blocking lock electrically connected with an electricity cabinet and a drive mechanism, an one end for described drive mechanism
Affixed with described door lock, the other end of described drive mechanism and controls component activity and connects, described control
Parts processed are integral with described blocking lock shape, and described control parts are for controlling the dynamic of described drive mechanism
Make so that when described door lock is off, described blocking lock is off-state.
In this programme, have employed dual interlock, door lock is affixed with one end of drive mechanism, its another
Holding and be connected with a control component activity, it is integral with blocking lock shape that this controls parts, and blocking lock disconnects and making
During the power-off of enabling interlocking mechanism, the other end of drive mechanism could move under the effect controlled on parts,
So that door lock can get to off-state from closure state, door only ability in the case of door lock disconnects
Open.Blocking lock so can be avoided when the state of Guan Bi, and door lock disconnects, the situation that door is opened,
Prevent the hidden danger of charged maloperation, further ensure the life security of ore deposit underground labour.From price
For, simple mechanical interlocking decreases cost, improves mine flameproof and intrinsic safety type multiloop
The efficiency of vacuum electromagnetic starter.
It is preferred that described blocking lock includes at least one commutation scram button electrically connected with described electricity cabinet, often
Reversing handle described in one and a commutation scram button are meshed, and for controlling the shape of described reversing handle
State.
In this programme, reversing handle and the design form of commutation scram button, make reversing handle only change
Its state being opened or closed could be changed when scram button is pressed, anthropic factor can be avoided to move and change
To handle, thus cause unnecessary danger.
It is preferred that each described commutation scram button includes that a big axle and is fixed on one end of described big axle
Little axle on face, each described big axle engages with corresponding each described reversing handle so that when each institute
State commutation scram button when being in the state being pressed, corresponding described reversing handle and described big axle in point
From state.
In this programme, when commutation scram button is under common state, and its big axle engages with reversing handle,
Make reversing handle cannot change existing state, under commutation scram button is in the state of being pressed, its big axle
Separate with reversing handle, make little axle adjacent with reversing handle, so that reversing handle can be moved, thus change
Become its standing state, processing ease, simple in construction.
It is preferred that described door opener also includes lock a door plate and the enabling hands of the one end being fixed in described door
Handle, described in the lock a door end of plate be provided with an arcuate groove, described door lock is connected in described arcuate groove.
In this programme, use said structure form, when door lock is in the state disconnected, door open knob
In movable state, make door open knob only just can move door when door lock disconnects.
It is preferred that described control parts include at least one baffle plate being provided with one first chute, each described gear
Plate is integral with corresponding each described reversing handle shape, and described drive mechanism includes primary Ioops jam plate,
Described loop jam plate is provided with at least one gag lever post corresponding with each described baffle plate, each described gag lever post
It is arranged at the lower section of corresponding described baffle plate.
The first chute in this programme, when each reversing handle is in off-state, on corresponding baffle plate
With gag lever post on the same line, only when all reversing handles disconnect, loop jam plate just can move up,
Door lock could be moved to the position of disconnection, has double protection.
It is preferred that described drive mechanism also includes a door-opening rotating shaft, one is in transmission connection with described loop jam plate
Swinging plate, a transmission flanged plate and a driver plate, it is whole that described door-opening rotating shaft and described door lock form one
Body, described swinging plate is provided with first rotating shaft being fixed on an installing plate, and described driver plate is provided with one
The second rotating shaft being fixed on described installing plate, described transmission flanged plate is slidedly arranged on described installing plate, institute
Stating driver plate to be positioned on described transmission flanged plate, described driver plate is in transmission connection with described door-opening rotating shaft,
Described swinging plate is in transmission connection with described loop jam plate and is disposed adjacent with described transmission flanged plate.
In this programme, door-opening rotating shaft is integral with door lock shape, when blocking lock is in the state disconnected,
Door lock is during being got to disconnection by Guan Bi, and door-opening rotating shaft rotates together with door lock, drives transmission
Plate rotates counterclockwise around the second rotating shaft, promotes transmission flanged plate to be moved to the left, thus promotes swinging plate around the
One rotating shaft turns clockwise, and linkage loop jam plate moves up.
It is preferred that one end of described driver plate is solid with described swinging plate adjacent near described transmission flanged plate
Being provided with one first roller, one end of described swinging plate is installed with one second rolling at described transmission flanged plate
Wheel.
In this programme, by the first roller and the design of the second roller, its frictional force is little, it is little to wear and tear,
Avoid between driver plate and transmission flanged plate and transmission flanged plate and swinging plate in interlocking transmission simultaneously
During stuck situation occurs.
It is preferred that described transmission flanged plate is provided with one second chute, described installing plate is fixed with certain
Position device, described positioner includes that two location block plates and are connected between two described location block plates
Connecting shaft, described connecting shaft is arranged in described second chute, and described transmission flanged plate is positioned at two institutes
State between the block plate of location.
In this programme, use said structure form, make transmission flanged plate be possible not only to laterally move,
And it is avoided that skew in the horizontal direction.
It is preferred that one end of described transmission flanged plate is away from being installed with a resetting means at described swinging plate,
Described resetting means drives described loop jam plate to move down for door lock in closed state.
It is preferred that described resetting means includes an interlocking screws affixed with one end of described transmission flanged plate
With a stage clip, described compression spring sleeve be located at one end of described interlocking screws away from described transmission flanged plate at, institute
The two ends stating stage clip are installed with a locating piece being sheathed on described interlocking screws respectively.
In this programme, the stage clip being set on interlocking screws plays reset response, when door lock closes,
Arrange stage clip provide a resilience force, make transmission flanged plate be moved to the left, thus drive circuit jam plate to
Lower movement, then closes blocking lock, it is ensured that the Electrical Safety under mine.
It is preferred that described control parts include at least one baffle plate being provided with one first chute, each described gear
Plate is integral with corresponding each described reversing handle shape, and described drive mechanism includes primary Ioops jam plate,
Described loop jam plate is provided with at least one gag lever post corresponding with each described baffle plate, each described gag lever post
It is arranged at the lower section of corresponding described baffle plate.
On the basis of meeting common sense in the field, above-mentioned each optimum condition, can combination in any, i.e. get Ben Fa
Bright each preferred embodiments.
The most progressive effect of the present invention is:
The present invention opens the door interlocking mechanism's simple in construction, easy to operate, safe and reliable, by interlock and
The design of door opener prevents the hidden danger of charged maloperation, further ensures the life peace of ore deposit underground labour
Entirely, from price for, simple mechanical interlocking decreases cost, improves mine flameproof and intrinsic
The efficiency of safety multi-circuit vacuum electromagnetic starter.
Accompanying drawing explanation
Fig. 1 is the structural representation of the enabling interlocking mechanism of present pre-ferred embodiments.
Fig. 2 is the front view corresponding with Fig. 1.
Fig. 3 is the rearview corresponding with Fig. 1.
Fig. 4 is the partial enlarged drawing of part A in Fig. 2.
Fig. 5 is the closure state figure of door lock in Fig. 3.
Fig. 6 is the off-state figure of door lock in Fig. 3.
Fig. 7 is the top view of blocking lock in Fig. 1.
Fig. 8 is the closure state figure of door open knob in Fig. 3.
Fig. 9 is the off-state figure of door open knob in Fig. 3
Detailed description of the invention
Provide present pre-ferred embodiments below in conjunction with the accompanying drawings, to describe technical scheme in detail.
As it is shown in figure 1, the present invention opens the door, interlocking mechanism includes door opener 1 and an interlock.Connection
Locking device is in transmission connection with door opener 1.
Wherein, as shown in figures 2-3, door opener 1 includes one 12 and a door lock 11.Interlocking dress
Put and include the blocking lock 2 electrically connected with an electricity cabinet and a drive mechanism 3.One end of drive mechanism 3 with
Door lock 11 is affixed, and the other end of drive mechanism 3 and controls parts 4 and is flexibly connected.Control parts 4
Integral with blocking lock 2 shape, control parts 4 for controlling the action of drive mechanism 3 so that when opening
When door lock 11 is off, blocking lock 2 is in off-state.It is to say, only blocking lock 2
When disconnecting, door lock 11 could disconnect, and door just can be opened.
In the present invention, have employed dual interlock, door lock 11 is affixed with one end of drive mechanism 3,
Its other end and one controls parts 4 and is flexibly connected, and it is integral with blocking lock 2 shape that this controls parts 4.
Blocking lock 2 disconnects when making the power-off of enabling interlocking mechanism, and the other end of drive mechanism 3 is controlling on parts 4
Effect under could move so that door lock 11 can get to off-state from closure state, door only exists
Door lock 11 just can be opened in the case of disconnecting.So can avoid blocking lock 2 Guan Bi state time,
Door lock 11 disconnects, the situation that door 12 is opened, it is therefore prevented that the hidden danger of charged maloperation, protects further
Demonstrate,prove the life security of ore deposit underground labour.For from price, simple mechanical interlocking decreases cost,
Improve the efficiency of mine flameproof and intrinsic safety type multi-circuit vacuum electromagnetic starter.
Wherein, as it is shown on figure 3, blocking lock 2 include at least one commutation scram button 21 and at least one and
The reversing handle 22 of each commutation scram button 21 correspondence.Each reversing handle 22 each changes with corresponding
Engaging to scram button 21, each commutation scram button 21 is for controlling the state of reversing handle 22.
Each commutation scram button 21 electrically connects with electricity cabinet.So make reversing handle 22 only commutation jerk by
Its state being opened or closed could be changed when button 21 is pressed, and when change-over key 22 is pressed time control
Make the power on/off state of whole enabling interlocking mechanism, anthropic factor can be avoided to move reversing handle, thus make
Become unnecessary danger.
In the present embodiment, commutation scram button 21 and reversing handle 22 are 4.
Wherein, as it is shown in fig. 7, each commutation scram button 21 includes that a big axle 211 and is fixed on
Little axle 212 on the end face of big axle 211.Each big axle 211 and corresponding each reversing handle 22
Engagement.When each commutation scram button 21 is in the state being pressed, corresponding reversing handle 22 in
The state separated with big axle 211.
In the present invention, when commutation scram button 21 is under common state, its big axle 211 and commutation
Handle 22 engages, and makes reversing handle 22 cannot change existing state.When commutation scram button 21 exists
Being pressed under state, its big axle 211 separates with reversing handle 22, makes little axle 212 and reversing handle 22
Adjacent, so that reversing handle 22 can be moved, thus change its standing state, processing ease, structure
Simply.
It addition, as it is shown on figure 3, door opener 1 also includes the plate of locking a door of the one end being fixed in door 12
13 and door open knob 14.The lock a door end of plate 13 is provided with an arcuate groove 15(as shown in Figure 5).Open the door
Lock 11 is connected in arcuate groove 15.When door lock 11 is in the state disconnected, door open knob 14 is in can
Active state.So make door open knob 14 only just can move door 12 when door lock 11 disconnects.
Additionally, as shown in Figure 2, Figure 4 shows, control parts 4 and include that at least one is provided with one first chute 42
Baffle plate 41.Each baffle plate 41 is integral with corresponding each reversing handle 22 shape.Drive mechanism 3
Including primary Ioops jam plate 31.Loop jam plate 31 is provided with at least one gag lever post corresponding with each baffle plate 41
311.Each gag lever post 311 is arranged at the lower section of corresponding baffle plate 41.When reversing handle 22 disconnects
During state, each first chute 42 in each corresponding gag lever post 311 state on the same line.
In the present embodiment, baffle plate 41 has 4 pieces, and gag lever post 311 has 4.
In the present invention, when each reversing handle 22 is in off-state, on corresponding baffle plate 41
One chute 42 with gag lever post 311 on the same line, only when all reversing handles 22 disconnect, loop
Jam plate 31 just can move up, and door lock 11 could be moved to the position of disconnection, has duplicate protection and makees
With.
Wherein, as shown in Figure 2, Figure 4 shows, drive mechanism 3 also includes door-opening rotating shaft 35, one and a loop
The swinging plate 32 that jam plate 31 is in transmission connection, transmission flanged plate 33 and a driver plate 34.Door-opening rotating shaft
35 is integral with door lock 11 shape, and the kinestate of door-opening rotating shaft 35 is along with the motion of door lock 11
State changes.
Wherein, swinging plate 32 is provided with and first rotating shaft 321 being fixed on an installing plate 5.Transmission
Plate 34 is provided with second rotating shaft 341 being fixed on installing plate 5.Transmission flanged plate 33 is slidedly arranged on installation
On plate 5, driver plate 34 is positioned on transmission flanged plate 33, driver plate 34 and door-opening rotating shaft 35 transmission
Connecting, swinging plate 32 is in transmission connection with loop jam plate 31 and is disposed adjacent with transmission flanged plate 33.
In the present invention, door-opening rotating shaft 35 is integral with door lock 11 shape, when blocking lock 2 disconnects
State time, door lock 11 during being got to disconnection by Guan Bi, door-opening rotating shaft 35 and door lock 11
Rotate together, drive driver plate 34 to rotate counterclockwise around the second rotating shaft 341, promote transmission flanged plate 33
It is moved to the left, thus promotes swinging plate 32 to turn clockwise around the first rotating shaft 321, linkage loop jam plate
31 move up.In the present embodiment, door-opening rotating shaft 35 is eccentric elliptic rotating shaft.
It addition, as shown in Figure 4, one end of driver plate 34 is near transmission flanged plate 33 and swinging plate 32
Adjacent is installed with one first roller 342.One end of swinging plate 32 is fixed at transmission flanged plate 33
There is one second roller 322.So make between transmission flanged plate 33 and swinging plate 32 and transmission flanged plate
Frictional force between 33 and driver plate 34 is less, abrasion is less, avoids driver plate 34 and transmission simultaneously
Occur stuck between flanged plate 33 and transmission flanged plate 33 and swinging plate 32 in interlocking transmission process
Situation.
Additionally, as in figure 2 it is shown, transmission flanged plate 33 is provided with one second chute 331.Installing plate 5
On be fixed with a positioner 332.Positioner 332 includes that two location block plates and are connected to two
Connecting shaft between the block plate of location.Connecting shaft is arranged in the second chute 331, transmission flanged plate 33
Between two location block plates.So, transmission flanged plate 33 is avoided in level side by two block plates
To skew, simultaneously by connecting shaft in the second chute 331 removable, make the transmission flanged plate 33 can
To laterally move.
Further, as in figure 2 it is shown, one end of transmission flanged plate 33 is installed with one away from swinging plate 32
Resetting means 6.Resetting means 6 is downward for door lock 11 drive circuit jam plate 31 in closed state
Mobile.
Wherein, resetting means 6 include an interlocking screws 61 affixed with one end of transmission flanged plate 33 and
One stage clip 62.Stage clip 62 be sheathed on one end of interlocking screws 61 away from transmission flanged plate 33 at.Stage clip
The two ends of 62 are installed with a locating piece 63 being sheathed on interlocking screws 61 respectively.
In the present invention, the stage clip 62 being set on interlocking screws 61 plays reset response, works as door lock
During 11 Guan Bi, the stage clip 62 of setting provides a resilience force, makes transmission flanged plate 33 be moved to the left, from
And drive circuit jam plate 31 moves down, then Guan Bi blocking lock 2, it is ensured that the Electrical Safety under mine.
The work process that above-mentioned enabling interlocking mechanism opens the door is specific as follows:
S1, first press each commutation scram button 21 by corresponding reversing handle 22 from closure state (as
Shown in Fig. 8) get to off-state (as shown in Figure 9), namely blocking lock 2 is got to off-state,
This ensures that there will not hot line job, as shown in Figure 4, now first sliding on corresponding baffle plate 41
Groove 42 with gag lever post 311 on the same line, unclamps each commutation scram button 21 afterwards；
S2, then door lock 11 is opened off-state (such as Fig. 6 from closure state (as shown in Figure 5)
Shown in), as shown in Figure 4, door-opening rotating shaft 35 turns clockwise along with the motion of door lock 11, promotes
Driver plate 34 rotates counterclockwise around the second rotating shaft 341, so that the first roller 342 promotes transmission flanging
Plate 33 is moved to the left, and then promotes the second roller 322, thus drives swinging plate 32 around the first rotating shaft 321
Turn clockwise, finally promote loop jam plate 31 to move up；
S3, as it is shown on figure 3, move door open knob 14 and door opened, enabling completes.
The work process that above-mentioned enabling interlocking mechanism closes the door is specific as follows:
S1, as it is shown on figure 3, move door open knob 14 by door close；
S2, door lock 11 is reached closure state (as shown in Figure 5) from off-state (such as Fig. 6),
As shown in Figure 4, door-opening rotating shaft 35 rotates counterclockwise along with the motion of door lock 11, so that driver plate
34 turn clockwise around the second rotating shaft 341, and then make transmission flanged plate 33 move right, loop jam plate
31 move down because of own wt, drive swinging plate 32 to rotate counterclockwise, now around the first rotating shaft 321
Each gag lever post 311 departs from corresponding first chute 42；
S3, press each commutation scram button 21 by corresponding reversing handle 22 from off-state (as figure
Shown in 9) get to closure state (as shown in Figure 8), namely blocking lock 2 is got to closure state, this
Shi Kaimen interlock is energized, as shown in Figure 4, now the first chute 42 on corresponding baffle plate 41 with
Gag lever post 311 the most on the same line, unclamps each commutation scram button 21 afterwards, has closed the door.
Although the foregoing describing the detailed description of the invention of the present invention, but those skilled in the art should managing
Solving, these are merely illustrative of, and protection scope of the present invention is defined by the appended claims.This
The technical staff in field, can be to these embodiment party on the premise of without departing substantially from the principle of the present invention and essence
Formula makes various changes or modifications, but these changes and amendment each fall within protection scope of the present invention.
Claims (8)
1. an enabling interlocking mechanism, including a door opener, it is characterised in that its also include one with
The interlock that described door opener is in transmission connection, described door opener includes one and a door lock, institute
State interlock and include the blocking lock electrically connected with an electricity cabinet and a drive mechanism, described drive mechanism
One end is affixed with described door lock, and the other end of described drive mechanism and controls component activity and connects, institute
Stating control parts integral with described blocking lock shape, described control parts are used for controlling described drive mechanism
Action so that when described door lock is off, described blocking lock is off-state；
Described blocking lock includes at least one commutation scram button electrically connected with described electricity cabinet, each commutation hands
Handle is meshed with the scram button that commutates described in corresponding, and described commutation scram button is used for controlling described
The state of reversing handle；
Each described commutation scram button includes that a big axle and is fixed on the end face of described big axle
Little axle, each described big axle engages with corresponding each described reversing handle so that when each described commutation
When scram button is in the state being pressed, corresponding described reversing handle with described big axle in the shape separated
State.
Open the door the most as claimed in claim 1 interlocking mechanism, it is characterised in that described door opener is also
Including lock a door plate and the door open knob of the one end being fixed in described door, described in the lock a door end of plate be provided with one
Arcuate groove, described door lock is connected in described arcuate groove.
Open the door the most as claimed in claim 1 or 2 interlocking mechanism, it is characterised in that described control portion
Part includes at least one baffle plate being provided with one first chute, each described baffle plate and corresponding each described commutation
Handle shape is integral, and described drive mechanism includes that primary Ioops jam plate, described loop jam plate are provided with at least
One gag lever post corresponding with each described baffle plate, each described gag lever post is arranged at corresponding described baffle plate
Lower section.
Open the door the most as claimed in claim 3 interlocking mechanism, it is characterised in that described drive mechanism is also
Including a door-opening rotating shaft, a swinging plate being in transmission connection with described loop jam plate, a transmission flanged plate and one
Driver plate, described door-opening rotating shaft is integral with described door lock shape, and described swinging plate is provided with one and fixes
The first rotating shaft on an installing plate, described driver plate is provided with second turn be fixed on described installing plate
Axle, described transmission flanged plate is slidedly arranged on described installing plate, and described driver plate is positioned over described transmission flanging
On plate, described driver plate is in transmission connection with described door-opening rotating shaft, and described swinging plate passes with described loop jam plate
It is dynamically connected and is disposed adjacent with described transmission flanged plate.
Open the door the most as claimed in claim 4 interlocking mechanism, it is characterised in that the one of described driver plate
End is installed with one first roller, described swinging plate near described transmission flanged plate and described swinging plate adjacent
One end at described transmission flanged plate, be installed with one second roller.
Open the door the most as claimed in claim 4 interlocking mechanism, it is characterised in that described transmission flanged plate
Being provided with one second chute, described installing plate is fixed with a positioner, described positioner includes two
Individual location block plate and one is connected to the connecting shaft between two described location block plates, and described connecting shaft is arranged in
In described second chute, described transmission flanged plate is between two described location block plates.
Open the door the most as claimed in claim 4 interlocking mechanism, it is characterised in that described transmission flanged plate
One end away from being installed with a resetting means at described swinging plate, described resetting means is closing for door lock
Described loop jam plate is driven to move down under conjunction state.
Open the door the most as claimed in claim 7 interlocking mechanism, it is characterised in that described resetting means bag
Including the interlocking screws affixed with one end of described transmission flanged plate and a stage clip, described compression spring sleeve is located at institute
State one end of interlocking screws away from described transmission flanged plate at, the two ends of described stage clip are installed with a set of respectively
It is located at the locating piece on described interlocking screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310373954.2A CN103903883B (en) | 2013-08-23 | 2013-08-23 | Enabling interlocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310373954.2A CN103903883B (en) | 2013-08-23 | 2013-08-23 | Enabling interlocking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103903883A CN103903883A (en) | 2014-07-02 |
| CN103903883B true CN103903883B (en) | 2016-10-05 |
Family
ID=50995155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310373954.2A Active CN103903883B (en) | 2013-08-23 | 2013-08-23 | Enabling interlocking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103903883B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105513857A (en) * | 2015-11-19 | 2016-04-20 | 中煤张家口煤矿机械有限责任公司 | Scram button and disconnecting switch interlocking mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3778567A (en) * | 1972-08-04 | 1973-12-11 | Westinghouse Electric Corp | Circuit interrupter with interlocking mechanism |
| CN201060785Y (en) * | 2007-07-20 | 2008-05-14 | 江苏八达真空电气有限公司 | Mine anti-explosive switch dual-door locking device |
| CN201146111Y (en) * | 2007-12-14 | 2008-11-05 | 山西汾西重工有限责任公司 | Machinery, electrical interlocking device or mining explosion-proof switch |
| CN201549789U (en) * | 2009-09-30 | 2010-08-11 | 昆明华奥航星电气有限公司 | Visual breakpoint low-voltage switch operation box |
| CN202738285U (en) * | 2012-08-08 | 2013-02-13 | 北京瑞赛长城航空测控技术有限公司 | Flame-proof device and interlocking device |
| CN203491144U (en) * | 2013-08-23 | 2014-03-19 | 华荣科技股份有限公司 | Door-opening interlocking mechanism |
-
2013
- 2013-08-23 CN CN201310373954.2A patent/CN103903883B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3778567A (en) * | 1972-08-04 | 1973-12-11 | Westinghouse Electric Corp | Circuit interrupter with interlocking mechanism |
| CN201060785Y (en) * | 2007-07-20 | 2008-05-14 | 江苏八达真空电气有限公司 | Mine anti-explosive switch dual-door locking device |
| CN201146111Y (en) * | 2007-12-14 | 2008-11-05 | 山西汾西重工有限责任公司 | Machinery, electrical interlocking device or mining explosion-proof switch |
| CN201549789U (en) * | 2009-09-30 | 2010-08-11 | 昆明华奥航星电气有限公司 | Visual breakpoint low-voltage switch operation box |
| CN202738285U (en) * | 2012-08-08 | 2013-02-13 | 北京瑞赛长城航空测控技术有限公司 | Flame-proof device and interlocking device |
| CN203491144U (en) * | 2013-08-23 | 2014-03-19 | 华荣科技股份有限公司 | Door-opening interlocking mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103903883A (en) | 2014-07-02 |
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