CN104163370B - Elevator full-load and overload detecting device - Google Patents
Elevator full-load and overload detecting device Download PDFInfo
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- CN104163370B CN104163370B CN201410301857.7A CN201410301857A CN104163370B CN 104163370 B CN104163370 B CN 104163370B CN 201410301857 A CN201410301857 A CN 201410301857A CN 104163370 B CN104163370 B CN 104163370B
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- brush
- overload
- housing
- load
- full
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Abstract
The invention discloses an elevator full-load and overload detecting device which comprises a shell body, an electric brush guiding pillar, an electric brush connected with the electric brush guiding pillar, a printed circuit board corresponding to the electric brush, a signal transmission device, a reset spring and a load abutting bolt, wherein an accommodating cavity matched with the electric brush guiding pillar is formed inside the shell body, one end of the electric brush guiding pillar is connected with the shell body through the reset spring, the other end of the electric brush guiding pillar is connected with the load abutting bolt, the printed circuit board is connected with the shell body, the signal transmission device comprises a current signal input terminal, a full-load signal output terminal and an overload signal output terminal, the current signal input terminal is electrically connected with the electric brush, and the full-load signal output terminal and the overload signal output terminal are both electrically connected with the printed circuit board. The elevator full-load and overload detecting device has the advantages of being simple in structure, convenient and fast to install and debug, sensitive in action, low in production cost and using cost, and high in reliability.
Description
Technical field
The invention belongs to mechanical field, more particularly, it relate to a kind of elevator components, being related specifically to a kind of elevator expires
Load, overload detector.
Background technology
In apparatus for controlling elevator, runs software design includes two functions needs outside to feed back by device signal：
1st, function is fully loaded with, signal feedback is carried out when elevator load meets or exceeds 75～80%, now because elevator has reached full-loading condition,
Outer-office calling is not replied during operation, is directly driven towards in sedan-chair and is instructed floor recently, also referred to as the through function of elevator；2nd, overload disabling work(
Energy：Compulsory Feature in specification, when elevator load exceedes rated load, to guarantee safety, the device answers feedback signal to make electricity
Terraced control system is out of service and opens the door etc. and to wait upon, until some of the staff or object remove elevator and make elevator in specified load-carrying scope
It is interior and resume operation automatically.
To realize the detection of above-mentioned two signal, electronic type overload device, magnetic induction switch are typically used in prior art
Formula overload device, mechanical switch overload device etc., wherein electronic type overload device:Using electronic-weighing principle, by resetting,
Peeling, sequence of operations of weighing make elevator run in the range of specified loading capacity, but relatively costly, pressure sensor is because of knot
Cannot be verified during structure reason maintaining, install or be clamped in the pressure sensor in the middle of elevator rope rope hitch plate and change
Work difficulty is big, and failure can not in time be found and be excluded, and equipment is run in spite of illness.
Magnetic induction switch formula overload device typically adopts proximity Hall switch principle, and its hoist ropes is received after elevator load
Pull to gravity and the shock absorber installed in fag end two ends is compressed, the Hall switch on shock absorber is to magnet steel placement side
To being close to, when elevator overload operating mode is reached, switch motion output overload signal, need to repeatedly adjust adjacent boundary's point, its spirit during installation
Sensitivity changes, poor reliability with impulsive force when loading.Meanwhile, in order to realize overload signal output and full signal output,
Need to install two magnetic induction switch formula overload devices, that is, there is baroque shortcoming.
Mechanical switch overload device is generally microswitch (also known as travel switch), by anti-vibration during elevator load
Device compression travel trigger switch action, because compression triggering and the recovery stroke of travel switch are variant, therefore operating accuracy is not
Height, need to repeatedly adjust during installation and debugging and find its action neighbour circle point, because the limitation of installation site is applied to car floor installation side
Formula.Meanwhile, in order to realize overload signal output and full signal output, need to install two magnetic induction switch formula overload devices,
There is baroque shortcoming.
The content of the invention
It is an object of the invention to provide a kind of simple structure, installation and debugging are convenient and swift, be active in one's movements, produce and use
Low cost and highly reliable elevator cars with full load, overload detector.
To achieve these goals, the technical solution used in the present invention is：
A kind of elevator cars with full load, overload detector, including the housing, brush lead column being connected with car damping device and
Printed circuit board (PCB), signal transmitting apparatus, back-moving spring and load top that the connected brush of brush lead column and brush are correspondingly arranged
Supporting bolt, wherein enclosure interior offer the accommodating cavity matched with brush lead column, and one end and the housing of brush lead column lead to
Cross back-moving spring to be connected, the other end is connected with load contact bolt, back-moving spring is located at enclosure interior, load contact bolt is located at
Hull outside, printed circuit board (PCB) is connected with housing, and signal transmitting apparatus include current signal input, full signal output end
Son and overload signal lead-out terminal, current signal input is electrically connected with brush, the full signal lead-out terminal and overload
Signal output terminal is electrically connected with printed circuit board (PCB).
Above-mentioned a kind of elevator cars with full load, overload detector, also including nut of adjusting, adjust nut and the load top-projecting spiro
Bolt matches, and the nut of adjusting is connected with brush lead column.The overhang of load contact bolt can ensure that by nut of adjusting,
I.e. so that a kind of elevator cars with full load of the invention, overload detector have the advantages that it is highly reliable.
A kind of above-mentioned elevator cars with full load, overload detector, the brush includes rivet, the brush being connected with brush lead column
The tensioner spring of probe and connection rivet and brush probe, current signal input is connected with brush probe, and the brush is visited
Head is connected with printed circuit board (PCB).Popped one's head in by tensioner spring compression brush, it is ensured that brush is popped one's head in and printed circuit board (PCB) between
The compactness of contact, that is, cause a kind of elevator cars with full load of the invention, overload detector have be active in one's movements it is excellent with highly reliable
Point.
Above-mentioned a kind of elevator cars with full load, overload detector, the top layer of the brush probe is silver layer.Therefore can further carry
A kind of high elevator cars with full load of the invention, the reliability of overload detector contact.
Above-mentioned a kind of elevator cars with full load, overload detector, opens up fluted in the brush lead column, sets in the groove
There is the through hole matched with rivet.By the way that rivet is located in the groove of brush lead column so that put down on the surface of brush lead column
It is whole.
A kind of above-mentioned elevator cars with full load, overload detector, the side of the brush lead column is provided with projection, is provided with housing
With raised corresponding stopper slot.The sliding scale of brush lead column can be limited by stopper slot, brush is led
Housing will not be ejected because of the elastic force of back-moving spring to post, on the other hand, it is ensured that back-moving spring will not become because of excess compression
Property, that is, ensure a kind of elevator cars with full load of the invention, overload detector it is highly reliable.
A kind of above-mentioned elevator cars with full load, overload detector, the printed circuit board (PCB) includes fully loaded induction zone and overload sensing
Area, the fully loaded induction zone and overload induction zone are correspondingly arranged with brush, and the fully loaded induction zone is electrically connected with full signal lead-out terminal
Connect, the overload induction zone is electrically connected with overload signal lead-out terminal.Hereby it is achieved that the fully loaded, conveying of overload signal.
Above-mentioned a kind of elevator cars with full load, overload detector, also including installing rack, the installing rack is L-shaped, and it includes one
Panel and a connection panel are installed, the installation panel is fixedly linked with car damping device or car floor crossbeam, the connection panel and
Housing is fixedly linked.Easily and efficiently a kind of elevator cars with full load of the invention, overload detector can be fixed on by installing rack
On car damping device or car floor crossbeam.
Above-mentioned a kind of elevator cars with full load, overload detector, offers connection through hole on the housing, open up on connection panel
There is the link slot corresponding with connection through hole.Thus, it is possible to the position of more preferable adjustment housings, that is, cause a kind of elevator of the invention to expire
Carry, overload detector has installation and debugging conveniently advantage.
A kind of above-mentioned elevator cars with full load, overload detector, the housing includes upper shell and is fixedly linked with upper shell
Lower house, the accommodating cavity segment is opened on upper shell, is partly opened on lower house.Thus, production of the invention and assembling
Operation can be more simple efficient.
The invention has the beneficial effects as follows：By the way that housing is fixed on car damping device or car floor crossbeam, while stepping down
It is correspondingly arranged with corresponding rope hitch plate or car in the load contact bolt of hull outside, you can realize when the increase of car weight amount
When, rope hitch plate or car can extrusion load contact bolts so that a Slideslip of brush lead column phase back-moving spring, now fix
Brush in brush lead column will be servo-actuated, and brush probe will slide along printed circuit board (PCB), therefore can be real by debugging
Existing, when elevator is in full load, brush probe is slided into the fully loaded induction zone of printed circuit board (PCB), is now exported by full signal
Terminal just can convey full signal to elevator device；In the same manner, when car weight continues to increase, load contact bolt is further squeezed
One Slideslip of piezo wiper lead column phase back-moving spring, brush probe continues servo-actuated, when overload standard is reached, brush probe
The overload induction zone of printed circuit board (PCB) is slided into, now just can be overloaded to elevator device conveying by overload signal lead-out terminal
Signal.To sum up i.e. a kind of elevator cars with full load of the invention, overload detector have simple structure, production and use cost low and can be same
When output full signal and overload signal be practical advantage.
Description of the drawings
Fig. 1 is structural representation of the present invention on car damping device；
Fig. 2 is the exploded view of the present invention；
Fig. 3 is the structural representation of the brush lead column in Fig. 2；
Fig. 4 is the structural representation of the printed circuit board (PCB) in Fig. 2；
Fig. 5 is the structural representation of the installing rack in Fig. 1；
Fig. 6 is structural representation of the present invention on car floor crossbeam.
Specific embodiment
Effect to make the architectural feature to the present invention and reached has and further understand and recognize, to preferably
Embodiment and accompanying drawing coordinate detailed description, are described as follows：
In Fig. 1 to Fig. 5, the present invention：A kind of elevator cars with full load, overload detector include horizontal with car damping device or car floor
Brush 3 and electricity that the connected housing 1 of beam (being car damping device in Fig. 1), brush lead column 2 are connected with brush lead column 2
Printed circuit board (PCB) 4, signal transmitting apparatus 5, back-moving spring 6 and load contact bolt 7 that brush 3 is correspondingly arranged, wherein housing 1 includes
Upper shell 101 and the lower house 102 being connected is screwed with upper shell 101, is offered inside housing 1 and brush lead column
2 accommodating cavities 11 for matching, the part of accommodating cavity 11 is opened on upper shell 101, is partly opened on lower house 102.Brush
Lead column 2 is flexibly connected with housing 1, and the flexible connection is：One end of brush lead column 2 passes through the phase of back-moving spring 6 with housing 1
Even, the other end is connected with load contact bolt 7, and back-moving spring 6 is located in the accommodating cavity 11 inside housing 1, load contact bolt 7
Outside housing 1.
The side of brush lead column 2 is provided with raised 23, housing 1 and is provided with and raised 23 corresponding stopper slots 12.Pass through
Stopper slot 12 can limit the sliding scale of brush lead column 2, on the one hand so that brush lead column 2 will not be because of back-moving spring 6
Elastic force eject housing 1, on the other hand, it is ensured that back-moving spring 6 will not because of excess compression denaturation so that failure.
Brush 3 includes that rivet 31, the brush probe 32 being connected with brush lead column 2 and connection rivet 31 and brush are visited
32 tensioner spring 33, opens up fluted 21 in brush lead column 2, be provided with the groove 21 and that rivet 31 matches is logical
Hole 22, rivet 31 is fixed in brush lead column 2 by pressure-riveting process, and the top layer of brush probe 32 is silver layer.Tensioner spring 33
Brush probe 32 is compressed, is allowed to closely coupled with printed circuit board (PCB) 4, so as to ensure that brush probe is with printed circuit board (PCB) indirectly
Tactile compactness, namely ensure that a kind of elevator cars with full load of the invention, the reliability of overload detector.
Printed circuit board (PCB) 4 is fixedly linked with housing 1, and printed circuit board (PCB) 4 includes fully loaded induction zone 41 and overload induction zone 42,
Fully loaded induction zone 41 and overload induction zone 42 are correspondingly arranged with brush 3.Signal transmitting apparatus 5 include current signal input
51st, full signal lead-out terminal 52 and overload signal lead-out terminal 53.Fully loaded induction zone 41 is electric with full signal lead-out terminal 52
Connection, overload induction zone 42 is electrically connected with overload signal lead-out terminal 53.Current signal input 51 is fixed on rivet 31,
And current signal input 51 is electrically connected with brush probe 3.
The upper end of brush lead column 2 offer the screwed hole 24 matched with load contact bolt 7, i.e. brush lead column 2 with
The screw thread of load contact bolt 7 coordinates.Simultaneously matched nut 71 of adjusting also is socketed with load contact bolt 7, should
Nut 71 of adjusting is connected with brush lead column 2.The overhang that can ensure that by nut 71 of adjusting load contact bolt 2 is stablized
Property, that is, the present invention is had the advantages that highly reliable.
For the ease of assembling, installing rack 8 is additionally provided with, the installing rack 8 is L-shaped, and it includes an installation panel 81 and a company
Junction plate 82, installs panel 81 and is fixedly linked with car damping device 9, and connection panel 82 is fixedly linked with housing 1.Such as Fig. 1 institutes
Show, car damping device 9 includes rope hitch plate 91, the shock absorber 92 on rope hitch plate 91 and the fag end with the socket of shock absorber 92
Screw rod 93, offers installation through-hole 811 on the installation panel 81 of installing rack 8, and it is fixed on fag end screw rod 93, load contact
Bolt 7 is correspondingly arranged with rope hitch plate 91.Connection through hole 13 is offered on housing 1, is offered on connection panel 82 and is connected through hole
13 corresponding link slots 821, by adding adaptable screw in through hole 13 and link slot 821, it is possible to realize shell
Body 1 and installing rack 8 are fixed together, while the screw can slide along link slot 821, you can to adjust load contact
Spacing between bolt 7 and rope hitch plate 91, namely be convenient to be debugged, while being also suitable for the elevator system of various load-carrying specifications
System.
In the present embodiment, housing 1 and brush lead column 2 are molded into using the good bakelite of insulating properties or plastics Jing moldings
Type, machining accuracy is high to be adapted to batch production needs.Simultaneously generally in column structure, its cross section can be brush lead column 2
The shape such as square or circular.
A kind of elevator cars with full load of the present invention, overload detector in running, during elevator car loading, installed in traction
The shock absorber 92 at steel wire rope two compresses under the effect of the pressure, so that elevator cars with full load on fag end screw rod 93,
Overload detector is moved down therewith, when the load contact bolt 7 on device encounters elevator rope head plate 91, at this moment load contact bolt
7 promote brush lead column 2 upwards, and the brush 3 in brush lead column 2 is moved linearly, when load reaches the pact of setting
During 75～80% load, the brush probe 32 of brush 3 is touched and be fully loaded with printed circuit board (PCB) 4 induction zone 41, and current signal Jing expires
The full signal that signal output terminal 52 connects apparatus for controlling elevator is carried, to complete relevant action.When load meets or exceeds electricity
During the rated load of ladder, brush probe 32 touches overload induction zone 42 on printed circuit board (PCB) 4, and current signal Jing overload signals are defeated
Go out the overload signal that terminal 53 connects apparatus for controlling elevator, to complete relevant action.
A kind of elevator cars with full load of the present invention, overload detector are switched to inspecting state in debugging process elevator functions,
With standard test weight or the object of corresponding nominal weight, even distribution in lift car is loaded into by the nominal load capacity of elevator, then
The nominal load capacity of loading 5% is adjusted nut as overload test, position of the first coarse adjustment housing 1 on installing rack 8, then fine tuning
71 so that the brush probe 32 of brush 3 touches overload induction zone 42 on printed circuit board (PCB) 4, so as to export overload signal, at this moment
Overload condition will be shown in sedan-chair, the weight of loading is reduced by 2～5% overload displays should disappear elevator recovery normally, locking
Nut of adjusting adjustment terminates.A kind of elevator cars with full load of the present invention, overload detector flexible movements reliability, can realize that full signal is defeated
Go out and overload signal output, meet elevator code requirement and functional design requirements.
In Fig. 6, the present invention is installed on elevator car bottom crossbeam 10, more specifically, elevator cars with full load, overload detector
The installation panel 81 of installing rack 8 is screwed on car floor crossbeam 10, and causes end and the elevator of load contact bolt 7
Car ground is corresponding, and by debugging, it equally can be realized when car weight increases, car ground extrusion load top-projecting spiro
Bolt 7 a, so that Slideslip of the brush lead column 2 to back-moving spring 6, that is, cause the brush probe 32 of brush 3 in printing electricity
Slide on road plate 4, namely realize that outwards output is fully loaded with, overload signal.
In two above-mentioned mounting means, it is contemplated that, it is possible to the displacement of fag end screw rod 93 or car bottom surface is excessively
Little, i.e., the decrement of corresponding lead column 2 is excessively little, pops one's head in for 32 expiring in printed circuit board (PCB) 4 insufficient for the brush of brush 3
Carry induction zone 41 and overload induction zone 42 slides, now in order to ensure practicality of the invention, can be on the basis of said structure
Add a leverage to amplify the decrement of lead column 2.More specifically, the fulcrum of leverage is arranged on into the present invention
Installing rack 8 on, and allow one end of lever of the leverage to be connected with load contact bolt 7, the other end and fag end screw rod
93 or car bottom surface be connected, be thus capable of achieving to amplify the movable signal of fag end screw rod 93 or car bottom surface so that brush 3
Brush probe 32 can win printed circuit board (PCB) 4 fully loaded induction zone 41 and overload induction zone 42 slide, that is, ensure the present invention
Being capable of normal work.Meanwhile, in order to further improve the practicality of the present invention, one end of the fulcrum of leverage can be along thick stick
Bar slides, and the other end of the fulcrum can also be movable on installing rack 8, i.e., the position of the fulcrum of leverage can be adjusted
Section, it is possible thereby to the more preferably decrement of control lead column 2, that is, allow the invention to be applied to various elevators.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
The simply present invention of the personnel it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and specification
Principle, without departing from the spirit and scope of the present invention the present invention also have various changes and modifications, these change and
Improvement is both fallen within the range of claimed invention.The protection domain of application claims by appending claims and its
Equivalent is defined.
Claims (8)
1. a kind of elevator cars with full load, overload detector, it is characterised in that include what is be connected with car damping device or car floor crossbeam
The printing electricity that the brush (3) and brush (3) that housing (1), brush lead column (2) are connected with brush lead column (2) is correspondingly arranged
Offer inside road plate (4), signal transmitting apparatus (5), back-moving spring (6) and load contact bolt (7), the housing (1) with
The accommodating cavity (11) that brush lead column (2) matches, one end of the brush lead column (2) and housing (1) are by back-moving spring
(6) it is connected, the other end is connected with load contact bolt (7), the back-moving spring (6) is internal positioned at housing (1), the load top
Supporting bolt (7) is outside positioned at housing (1), and the printed circuit board (PCB) (4) is connected with housing (1), signal transmitting apparatus (5) bag
Include current signal input (51), full signal lead-out terminal (52) and overload signal lead-out terminal (53), the electric current letter
Number input terminal (51) is electrically connected with brush (3), the full signal lead-out terminal (52) and overload signal lead-out terminal (53)
Electrically connect with printed circuit board (PCB) (4)；Also include nut (71) of adjusting, the nut of adjusting (71) and load contact bolt (7)
Match, the nut of adjusting (71) is connected with brush lead column (2)；The brush (3) includes being connected with brush lead column (2)
Rivet (31), brush probe (32) and connection rivet (31) and brush pop one's head in the tensioner spring (33) of (32), the electric current
Signal input terminal (51) is connected with brush probe (32), and brush probe (32) is connected with printed circuit board (PCB) (4).
2. a kind of elevator cars with full load according to claim 1, overload detector, it is characterised in that the brush probe
(32) top layer is silver layer.
3. a kind of elevator cars with full load according to claim 1, overload detector, it is characterised in that the brush lead column
(2) open up on fluted (21), the through hole (22) matched with rivet (31) is provided with the groove (21).
4. a kind of elevator cars with full load according to claim 1, overload detector, it is characterised in that the brush lead column
(2) side is provided with raised (23), the housing (1) and is provided with the stopper slot (12) corresponding with raised (23).
5. a kind of elevator cars with full load according to claim 1, overload detector, it is characterised in that the printed circuit board (PCB)
(4) including fully loaded induction zone (41) and overload induction zone (42), the fully loaded induction zone (41) and overload induction zone (42) with it is electric
Brush (3) is correspondingly arranged, and the fully loaded induction zone (41) electrically connects with full signal lead-out terminal (52), the overload induction zone
(42) electrically connect with overload signal lead-out terminal (53).
6. a kind of elevator cars with full load, the overload detector according to any one of claim 1, it is characterised in that also including peace
Shelve (8), the installing rack (8) is L-shaped, it includes an installation panel (81) and connection panel (82), the mounting surface
Plate (81) is fixedly linked with car damping device or car floor crossbeam, and connection panel (82) is fixedly linked with housing (1).
7. a kind of elevator cars with full load according to claim 6, overload detector, it is characterised in that open on the housing (1)
Connection through hole (13) is provided with, on connection panel (82) link slot (821) corresponding with connection through hole (13) is offered.
8. a kind of elevator cars with full load according to claim 1, overload detector, it is characterised in that the housing (1) includes
Upper shell (101) and the lower house (102) being fixedly linked with upper shell (101), the accommodating cavity (11) is partly opened in upper casing
On body (101), partly it is opened on lower house (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410301857.7A CN104163370B (en) | 2014-06-27 | 2014-06-27 | Elevator full-load and overload detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410301857.7A CN104163370B (en) | 2014-06-27 | 2014-06-27 | Elevator full-load and overload detecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104163370A CN104163370A (en) | 2014-11-26 |
| CN104163370B true CN104163370B (en) | 2017-05-10 |
Family
ID=51907384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410301857.7A Expired - Fee Related CN104163370B (en) | 2014-06-27 | 2014-06-27 | Elevator full-load and overload detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104163370B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817004A (en) * | 2015-05-10 | 2015-08-05 | 广东亚太西奥电梯有限公司 | System structure of lift car column and limiting rubber block |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1025071A (en) * | 1996-07-05 | 1998-01-27 | Fuji Denki Seisakusho:Kk | Emergency detector for home elevator |
| CN201052940Y (en) * | 2007-06-14 | 2008-04-30 | 广东省建筑科学研究院 | Spring type over-loading limiter for material hoisting machine |
| CN201873405U (en) * | 2010-11-19 | 2011-06-22 | 山东富士制御电梯有限公司 | Elevator overload protecting device |
| CN202609724U (en) * | 2012-05-16 | 2012-12-19 | 杭州恒丰电梯有限公司 | Overloading safety device of elevator car |
| CN203112276U (en) * | 2013-01-16 | 2013-08-07 | 杭州顺达伯耐特电梯有限公司 | Elevator overload device |
| CN203959565U (en) * | 2014-06-27 | 2014-11-26 | 史济峰 | A kind of elevator is fully loaded, overload detector |
-
2014
- 2014-06-27 CN CN201410301857.7A patent/CN104163370B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1025071A (en) * | 1996-07-05 | 1998-01-27 | Fuji Denki Seisakusho:Kk | Emergency detector for home elevator |
| CN201052940Y (en) * | 2007-06-14 | 2008-04-30 | 广东省建筑科学研究院 | Spring type over-loading limiter for material hoisting machine |
| CN201873405U (en) * | 2010-11-19 | 2011-06-22 | 山东富士制御电梯有限公司 | Elevator overload protecting device |
| CN202609724U (en) * | 2012-05-16 | 2012-12-19 | 杭州恒丰电梯有限公司 | Overloading safety device of elevator car |
| CN203112276U (en) * | 2013-01-16 | 2013-08-07 | 杭州顺达伯耐特电梯有限公司 | Elevator overload device |
| CN203959565U (en) * | 2014-06-27 | 2014-11-26 | 史济峰 | A kind of elevator is fully loaded, overload detector |
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| Publication number | Publication date |
|---|---|
| CN104163370A (en) | 2014-11-26 |
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Granted publication date: 20170510 Termination date: 20200627 |