CN203319468U - Cage skylight and cage - Google Patents
Cage skylight and cage Download PDFInfo
- Publication number
- CN203319468U CN203319468U CN2013204140825U CN201320414082U CN203319468U CN 203319468 U CN203319468 U CN 203319468U CN 2013204140825 U CN2013204140825 U CN 2013204140825U CN 201320414082 U CN201320414082 U CN 201320414082U CN 203319468 U CN203319468 U CN 203319468U
- Authority
- CN
- China
- Prior art keywords
- cage
- skylight
- window
- tappet
- day window
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The utility model relates to accessories of building machines, in particular to a cage skylight and a cage. According to the cage skylight, a detection switch is arranged on the cage and obtains a motion signal through the opening-closing state of a skylight door, that is, the detection switch obtains the motion signal through the skylight door. A lock used for locking the skylight door and the detection switch work in a mutually independent mode, the lock does not need to be connected with the detection switch, and therefore the structure of the skylight door is simplified. Due to the fact that the detection switch works independently, mistaken operation of the detection switch is avoided and safety of an elevator is improved. According to the cage, the skylight door is opened through a handle when an operator is on the top of the cage, and the skylight door is opened through a key when the operator is in the cage. The cage skylight and the cage meet requirements of relative regulations about emergency exits in the new national standard GB26557-2011 of builders hoists for persons and materials with vertically guided cages, and are simple in structure and convenient to operate.
Description
Technical field
The utility model relates to the vehicle for construction accessory, relates in particular to cage skylight and cage.
Background technology
Elevator is indispensable a kind of mechanical equipment in the modern high-rise building work progress, its Main Function is for to be transported to the Construction of High-rise scene by the building materials on ground, the conveying efficiency of elevator directly affects the progress of engineering, especially the cage of elevator, main transport structure as elevator, bearing the effect of transporting material, various standards have been done to elevator by country for this reason, so that elevator also can reach the requirement of construction safety in guaranteed efficiency, because the elevator working environment is relatively severe, in the cage operation process, may to elevator, be overhauled because some unpredictable reasons cause the cage top that the cage door can't be opened or cage needs technical personnel to enter cage when overhauling, the designer is provided with at the top of cage for tackling the skylight that supplies operation personnel or technical personnel to pass through of emergency situation or maintenance use for this reason, the skylight of cage makes operating personnel or technical personnel can enter easily the cage top of cage, for security consideration, the cage top does not generally allow unrelated person to enter at any time, when it window is opened, cage also should be in off working state, designed elevator craning cage skylight interlock system in prior art, when having met unrelated person and can not enter at any time cage top and skylight and open, cage is in off working state.
The patent No. is the disclosed a kind of construction elevator cage door of CN201220600987.7 skylight electromechanical interlocking device, comprises travel switch, spring, rotating disk, shift fork, switch enclosure, switch handle, gusset piece and day window, described travel switch is fixed on gusset piece, rotating disk is contained in the little rotating shaft of gusset piece and can rotates, spring connects with rotating disk for controlling the rotation direction of rotating disk, switch enclosure is fixed on day window, switch handle connects with shift fork by switch enclosure, described travel switch can be fixed on gusset piece by bolt and nut, described switch enclosure can be fixed on day window by bolt and nut, outside cage, can open by switch handle, in cage, need to open with specific key, and only under the state of skylight door locking cage just can move, safety factor when the disclosed technical scheme of this patent has improved the elevator operation greatly, but there is baroque deficiency, from the open file of this patent, can obtain disclosed technical scheme is a kind of structure of special use for the locking mechanism of locking day window, travel switch for detection of the sky window moves and obtains actuating signal by lock members, this manner of execution must cause the door complexity of windowing, and travel switch moves and obtains actuating signal by lock members, this collection signal mode easily produces misoperation because the lockset movable parts damages, there is potential safety hazard.
Summary of the invention
Cage skylight and cage that the utility model provides, be intended to overcome baroque deficiency in prior art.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: the cage skylight, comprise be arranged on cage the sky window, for detection of the detector switch of sky window open and-shut mode with for locking the lockset of day window, the outside that described sky window is positioned at cage is provided with for opening the handle of lockset, the inboard that described sky window is positioned at cage is provided with for opening the key hole of lockset, described detector switch is arranged on the folding condition by the sky window on cage and obtains action number, and described detector switch is connected with the control circuit of cage
As preferably, be provided with the tappet of being convenient to open or close day window between described sky window and cage, described tappet one end is fixed on cage, the described tappet other end is fixed on day window, owing between sky window and cage, tappet being set, when operating personal is opened or is closed at an operation day window, because the effect meeting of tappet is more laborsaving, easy to operate.
As preferably, described detector switch comprises switch enclosure and for detection of the contact of sky window folding condition, described contact is arranged on the part that cage overlaps with day window, contact is arranged on the part that day window overlaps with cage, operating personal can not touch contact during by skylight, avoid contact misoperation because operating personal touches, caused potential safety hazard, improved the safety performance of elevator.
As preferably, described day window comprise be fixed on the fixation side on cage and around fixation side, rotate cover side, described contact is arranged on cage and closes on the part of side superimposed with the skylight door closure, skylight door closure lateral extent contact distance is farthest when opening for this sky, position window, contact detect that a day window is opened or while closing accuracy of detection high, avoid a day window be left unlocked or unlatched and make contact action, caused potential safety hazard, further improved the safety performance of elevator.
As preferably, close at least one cushion block for the protection of contact on the part of side superimposed with the skylight door closure on described cage, described contact stretches out 5～8 millimeters of cushion blocks, due to elevator as a kind of vehicle for construction, to bear larger load in operation process, for the structure of the general elevator of intensity that meets elevator all more thick and heavy, it window is also more thick and heavy as itself structure of the part of elevator, and detector switch is relatively light as its structure of a kind of electric component, easily damage cup, increase the cushion block of protection contact, contact stretches out 5～8 millimeters of cushion blocks, contact is not easy damaged by the cushion block protection, extended the service life of contact, improved the safety performance of elevator.
As preferably, described tappet one end is fixed on cage, the described tappet other end is fixed on day window and opens the relative side of direction, when it window is opened due to the tappet effect, make the open angle of day window and the cage top angle of cage be no more than 90 degree, operating personal is positioned at a day window while opening the direction opposite side, closes the skylight door operation convenient, has improved efficiency.
As preferably, described tappet one end is fixed on cage, and the described tappet other end is fixed on day window and opens the side that direction is identical, increased the angle that day window is opened, the convenient operation personnel, by a day window, have improved efficiency during maintenance, improved the safety performance of cage when emergent.
As preferably, described day window all is provided with tappet opening a side that direction is identical and a contrary side, while opening or closing day window, because window both sides, sky all are provided with tappet, opens or closes the skylight door operation more convenient, improved efficiency.
As preferably, described tappet has one at least, further just opens or easy to operate while closing the door day window, has also improved the stability after day window is opened simultaneously, due to the sky window, has many tappets to support after opening, and it is good that a day window is opened rear stability.
Cage, comprise cage body and cage skylight, and described cage skylight is the cage skylight in technique scheme.
The cage skylight that the utility model provides, have following advantage: detector switch is arranged on the folding condition by the sky window on cage and obtains action number, be that detector switch obtains actuating signal by the sky window, for locking lockset and the separate work of detector switch of day window, without being connected, simplify the structure of day window between lockset and detector switch; Because detector switch works alone, the state of direct-detection sky window, resulting actuating signal is accurate, has avoided the detector switch misoperation, has improved the safety performance of elevator.
The cage that the utility model provides, have following advantage: the cage skylight adopts the cage skylight in technique scheme, operating personal is opened a day window by handle when the cage cage pushes up, operating personal is opened a day window by key in cage the time, operating personal can enter the cage top at any time by key in cage, meet in new national standard GB26557-2011 " cage has the dual-purpose building hoist of people's goods of vertically-guided " relevant regulations about Emergency Exit, and simple in structure, easy to operate.
The accompanying drawing explanation
Accompanying drawing 1 is the schematic diagram of the utility model cage skylight scheme one,
Accompanying drawing 2 is schematic diagrams of the utility model cage skylight scheme two,
Accompanying drawing 3 is schematic diagrams of the utility model cage skylight mode two,
Accompanying drawing 4 is schematic diagrams of the utility model cage skylight mode three,
Accompanying drawing 5 is schematic diagrams of the utility model cage skylight structure one,
Accompanying drawing 6 is schematic diagrams of the utility model cage skylight structure two.
Shown in figure 1, matrix, 2, positioning groove, 3, taper hole, 4, breach, 5, connecting bore, 6, workpiece, 7, dome, 8, connecting rod.
The specific embodiment
Embodiment mono-
Below in conjunction with accompanying drawing, cage of the present utility model skylight is described further.As Fig. 1, Fig. 5, shown in Fig. 6, the cage skylight, comprise the sky window 2 be arranged on cage 1, for detection of the detector switch 3 of sky window 2 open and-shut modes with for locking the lockset of day window 2, the outside that described sky window 2 is positioned at cage 1 is provided with for opening the handle of lockset, the inboard that described sky window 2 is positioned at cage 1 is provided with for opening the key hole of lockset, described detector switch 3 is arranged on the folding condition by sky window 2 on cage 1 and obtains action number, described detector switch 3 is connected with the control circuit of cage 1, described detector switch 3 comprises switch enclosure and for detection of the contact 6 of sky window 2 folding conditions, described day window 2 comprise be fixed on the fixation side on cage 1 and around fixation side, rotate cover side, described contact 6 is arranged on cage 1 and covers on the part of side superimposed with sky window 2, cover at least one cushion block for the protection of contact 65 on the part of side superimposed with sky window 2 on described cage 1, described contact 6 stretches out 55～8 millimeters of cushion blocks, in the concrete use procedure of said structure, detector switch 3 is arranged on the folding condition by sky window 2 on cage 1 and obtains action number, be that detector switch 3 obtains actuating signal by sky window 2, for locking lockset and the separate work of detector switch 3 of day window 2, between lockset and detector switch 3 without being connected, simplify the structure of day window 2, because detector switch 3 works alone, the state of direct-detection sky window 2, resulting actuating signal is accurate, has avoided detector switch 3 misoperations, has improved the safety performance of elevator, and the detail structure is as follows:
Structure one, described contact 6 is arranged on the part that cage 1 overlaps with day window 2, contact 6 is arranged on cage 1 and covers on the part of side superimposed with sky window 2, contact 6 is arranged on this position, it window 2 covers lateral extent contact 6 distance farthest when opening, contact 6 detect that day windows 2 are opened or while closing accuracy of detection high, avoided a day window 2 to be left unlocked or unlatched and to make contact 6 actions, cause potential safety hazard, improved the safety performance of elevator.
Further, as shown in Figure 5, in order to make contact 6 more durable, in described structure one, touch and be preferably up-and-down movement as mode, this structure can reduce the impact that contact 6 in use is subject to, and has extended the service life of contact 6.
Structure two, described contact 6 also can be arranged on the part that cage 1 overlaps with day window 2 fixation side or cage 1 be used for being connected and fixed the part that side overlaps with the side that covers side on, when contact 6 is arranged on this position, but cage 1 is opened in closing process, it window 2, slower with contact 6 contact position kinematic velocitys, has extended the service life of contact 6.
Further, as shown in Figure 6, in order to make contact 6 more durable, in structure two, the manner of execution of contact 6 is preferably side-to-side movement, and this structure can reduce the impact that contact 6 in use is subject to, and has extended the service life of contact 6.
In order further to extend the service life of contact 6, as Fig. 5, shown in Fig. 6, be provided with at least one cushion block for the protection of contact 65 on cage 1, described cushion block 5 quantity are preferably two, contact 6 stretches out 5～8 millimeters of cushion blocks, due to elevator as a kind of vehicle for construction, to bear larger load in operation process, for the structure of the general elevator of intensity that meets elevator all more thick and heavy, it window 2 is also more thick and heavy as itself structure of the part of elevator, and detector switch 3 is relatively light as its structure of a kind of electric component, easily damage cup, increase the cushion block 5 of protection contact 6, contact 6 stretches out 5～8 millimeters of cushion blocks, contact 6 is not easy damaged by cushion block 5 protections, extended the service life of contact 6, improved the safety performance of elevator.
Embodiment bis-
The difference of the present embodiment and embodiment mono-is, be provided with the tappet 4 of being convenient to open or close day window 2 between described sky window 2 and cage 1, described tappet 4 one ends are fixed on cage 1, described tappet 4 other ends are fixed on day window 2, described tappet 4 is a kind of stretchy rod, the normality of rod member can be for reach also can be for contraction type, be similar to extension spring and stage clip in spring, tappet 4 will be from the normality transition state, the application force that it stretches out that maintains that will make its contraction overcome to arrange on tappet 4 as the normality tappet 4 that is reach, just can make tappet 4 transformation conditiones, labour-saving when the present embodiment has utilized the application force that maintains normality on tappet 4 to realize opening or closing day window 2 just, fixing and the tappet 4 that can draw tappet 4 and day window 2 according to the mode of motion of tappet 4 and day window 2 and cage 1 fixedly should be rotary fixed form, as adopt hinged fixing, the fixed forms such as the employing bearing pin is fixing, the concrete set-up mode of tappet 4 is:
Mode one, as Fig. 1, shown in Fig. 2, described tappet 4 one ends are fixed on cage 1, and described tappet 4 other ends are fixed on day window 2 and open the relative side of direction, when a day window 2 is opened due to tappet 4 effects, make the open angle in skylight and the cage top angle of cage 1 be no more than 90 degree, operating personal is positioned at skylight while opening the direction opposite side, closes day window 2 easy to operate, has improved efficiency.
Mode two, as shown in Figure 3, described tappet 4 one ends are fixed on cage 1, described tappet 4 other ends are fixed on day window 2 and open the side that direction is identical, increased the angle that day window 2 is opened, the convenient operation personnel, by a day window 2, have improved efficiency during maintenance, improved the safety performance of cage 1 when emergent.
Mode three, as shown in Figure 4, described day window 2 all is provided with tappet 4 opening a side that direction is identical and a contrary side, while opening or closing day window 2, because window 2 both sides in sky all are provided with tappet 4, opens or closes day window 2 more convenient operation, has improved efficiency.
In aforesaid way one, mode two, the set-up mode of described tappet 4 also can have many, mode in tappet 4 can respectively arrange many on sky window 2, open or easy to operate while closing the door day window 2, also improved the stability after day window 2 is opened simultaneously, due to sky window 2, have after opening many tappets 4 to support, it is good that a day window 2 is opened rear stability.
Cage, comprise cage body and cage skylight, and described cage skylight is the cage skylight in technique scheme, adopts the cage skylight in technique scheme, and the plan of establishment between day window 2 and cage 1 is preferably as follows the plan of establishment:
Scheme one, as shown in Figure 1, boss 11 is set on cage 1 around skylight opening, arrange suitable with skylight opening on boss 11 and be communicated with the passage at cage 1 interior place, it window 2 is provided with the cavity 21 that can hold boss 11, it window 2 covers on boss 11, the setting party of boss 11 to sky window 2 to open direction consistent, for example day window 2 opens direction for to open outside cage 1, boss 11 should be arranged on the outside of cage 1 so, this scheme is simple in structure, it window 2 and detector switch 3, locksets etc. are easy for installation, cage 1 maintenance is convenient, improved overhaul efficiency.
Scheme two, as shown in Figure 2, be provided for the step of accommodating day window 2 on cage 1 around skylight opening, it window 2 covers posterior border position in the step opening, the setting party of step opening to sky window 2 to open direction consistent, for example day window 2 opens direction for to open outside cage 1, should to be arranged on the outside of cage 1 be that the step opening communicates with cage 1 outside to the step opening so, this scheme skylight door 2 covers rear position and is fixed by step, it window 2 is not easy to be hit and damages or make detector switch 3 misoperations, easy to use, improved the stability of elevator.
Technique scheme in use, detector switch 3 is arranged on the folding condition by sky window 2 on cage 1 and obtains action number, be that detector switch 3 obtains actuating signal by sky window 2, when it window 2 covers, skylight is touched or the contact 6 of bruising detector switch 3 makes detector switch 3 obtain actuating signal, connecting cage 1 circuit makes cage 1 be able to normal space, when it window 2 is opened, it window 2 touches or discharges the contact 6 of detector switch 3 the contact 6 of day window 2 detector switch 3 in opening procedure can be to an actuating signal, detector switch 3 actions, disconnect cage 1 circuit, make cage 1 in abnomal condition, for locking lockset and the separate work of detector switch 3 of day window 2, between lockset and detector switch 3 without being connected, simplify the structure of day window 2, because detector switch 3 works alone, the state of direct-detection sky window 2, resulting actuating signal is accurate, has avoided detector switch 3 misoperations, has improved the safety performance of elevator.
Be provided with the tappet 4 of being convenient to open or close skylight between it window 2 and cage 1, described tappet 4 one ends are fixed on cage 1, described tappet 4 other ends are fixed on day window 2, described tappet 4 will be from the normality transition state, the power that it stretches out that maintains that will make its contraction overcome to arrange on tappet 4 as the normality tappet 4 that is reach, just can make tappet 4 transformation conditiones, laborsaving while utilizing the application force that maintains normality on tappet 4 can realize opening or closing day window 2, as sky window 2 is outwards opened, between cage 1 outside and day window 2, the tappet 4 that normality is contraction type is set, to cover the state of rear brace rod 4 be abnormal for day window 2, the shape of the contraction type tappet 4 that namely day window 2 arranges after covering is for stretching out state, when needs are opened day window 2, after removing the lockset locking state, tappet 4 will recover to shrink normality will produce a pulling force to sky window 2, day window 2 is opened very laborsaving, setting is closed 4 of day window 2 labour-saving tappets and need to can be realized by contrary structure setting, for example, when it window 2 is outwards opened, very laborsaving when the tappet 4 that normality is set between cage 1 outside and day window 2 is the state that stretches out just can realize that day window 2 is closed.
Cage 1, the cage skylight adopts the cage skylight in technique scheme, operating personal is opened day window 2 by handle when cage 1 cage top, operating personal is opened day window 2 by key when cage 1 is interior, operating personal can enter the cage top at any time by key in cage, meet in new national standard GB26557-2011 " cage 1 has the dual-purpose building hoist of people's goods of vertically-guided " relevant regulations about Emergency Exit, and simple in structure, easy to operate.
These are only the preferred embodiment of the present invention, be intended to embody outstanding technique effect of the present invention and advantage, is not the restriction to technical scheme of the present invention.This area the skill personnel it should be understood that, all modifications of making based on the technology of the present invention content, variation or substitute technology feature all should be covered by the technology category of claims opinion of the present invention.
Claims (10)
1. cage skylight, comprise the sky window (2) be arranged on cage (1), for detection of the detector switch (3) of sky window (2) open and-shut mode with for locking the lockset of a day window (2), the outside that described sky window (2) is positioned at cage (1) is provided with for opening the handle of lockset, the inboard that described sky window (2) is positioned at cage (1) is provided with for opening the key hole of lockset, it is characterized in that: described detector switch (3) is arranged on cage (1), folding condition by sky window (2) obtains action number, described detector switch (3) is connected with the control circuit of cage (1).
2. cage according to claim 1 skylight, it is characterized in that: between described sky window (2) and cage (1), be provided with the tappet (4) of being convenient to open or close a day window (2), it is upper that described tappet (4) one ends are fixed on cage (1), and described tappet (4) other end is fixed on a day window (2).
3. cage according to claim 1 skylight, it is characterized in that: described detector switch (3) comprises switch enclosure and for detection of the contact (6) of sky window (2) folding condition, and described contact (6) is arranged on cage (1) with on part that day window (2) overlaps.
4. cage according to claim 3 skylight, it is characterized in that: described day window (2) comprise be fixed on the fixation side on cage (1) and around fixation side, rotate cover side, described contact (6) is arranged on that cage (1) is upper to be covered on the part of side superimposed with a sky window (2).
5. cage according to claim 4 skylight; it is characterized in that: described cage (1) is upper covers at least one cushion block for the protection of contact (6) (5) on the part of side superimposed with day window (2), and described contact (6) stretches out (5) 5～8 millimeters of cushion blocks.
6. cage according to claim 2 skylight is characterized in that: it is upper that described tappet (4) one ends are fixed on cage (1), and described tappet (4) other end is fixed on a day window (2) and opens the relative side of direction.
7. cage according to claim 2 skylight is characterized in that: it is upper that described tappet (4) one ends are fixed on cage (1), and described tappet (4) other end is fixed on a day window (2) and opens the side that direction is identical.
8. cage according to claim 2 skylight is characterized in that: described day window (2) all be provided with tappet (4) opening a side and the contrary side that direction is identical.
9. according to claim 2 or 6 or 7 described cage skylights, it is characterized in that: described tappet (4) has one at least.
10. cage, comprise cage body and cage skylight, it is characterized in that: described cage skylight is cage claimed in claim 1 skylight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204140825U CN203319468U (en) | 2013-07-10 | 2013-07-10 | Cage skylight and cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204140825U CN203319468U (en) | 2013-07-10 | 2013-07-10 | Cage skylight and cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203319468U true CN203319468U (en) | 2013-12-04 |
Family
ID=49658837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204140825U Expired - Fee Related CN203319468U (en) | 2013-07-10 | 2013-07-10 | Cage skylight and cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203319468U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332546A (en) * | 2013-07-10 | 2013-10-02 | 嘉兴市华东建设机械有限公司 | Cage skylight and cage |
| CN105565119A (en) * | 2016-02-26 | 2016-05-11 | 江南嘉捷电梯股份有限公司 | Lift car rescue device |
-
2013
- 2013-07-10 CN CN2013204140825U patent/CN203319468U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332546A (en) * | 2013-07-10 | 2013-10-02 | 嘉兴市华东建设机械有限公司 | Cage skylight and cage |
| CN105565119A (en) * | 2016-02-26 | 2016-05-11 | 江南嘉捷电梯股份有限公司 | Lift car rescue device |
| CN105565119B (en) * | 2016-02-26 | 2017-10-27 | 江南嘉捷电梯股份有限公司 | A kind of rescue device of elevator car |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101081677B (en) | Elevator car door locking device | |
| CN105731229A (en) | Integrated car door lock and door knife device | |
| CN204737626U (en) | Hoist gate interlock protection device | |
| CN103420247B (en) | About the safety device of accidental movement of elevator cage | |
| CN105862923B (en) | Multifunctional intellectual well lid | |
| CN102120542B (en) | Telescopic foot protection plate | |
| CN100445192C (en) | Temporary safety spaces construction for elevators | |
| CN203143865U (en) | Elevator safety gear triggered by electromagnetic force | |
| CN203319468U (en) | Cage skylight and cage | |
| CN106761004B (en) | A kind of intelligent electric-controlled door lock and its control method | |
| CN109230964A (en) | A kind of door interlock | |
| CN202125079U (en) | Construction-elevator overhanging type discharging platform device | |
| CN103332575B (en) | Protective door interlocking device | |
| CN201058783Y (en) | Elevator car door locking device | |
| CN103332546A (en) | Cage skylight and cage | |
| CN201385977Y (en) | Platform enclosure door for construction lift to unload material on floor | |
| CN103332576B (en) | Protective door electromechanical interlocking device | |
| CN214495348U (en) | Safety landing door of industrial elevator | |
| CN207192528U (en) | Low pit Security Screening device | |
| CN104370195B (en) | The interlocking stop layers protective device of elevator and protective door | |
| CN207293894U (en) | A kind of people's goods elevator safety protective door | |
| CN203382348U (en) | Interlocking device for protection doors | |
| CN203382350U (en) | Electromechanical interlocking device for protection doors | |
| CN203978080U (en) | A kind of locomotive emergency safety door lock | |
| CN208539354U (en) | A kind of Novel switch cabinet with function of safety protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20180710 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |