CN108382943A - A kind of elevator pit being equipped with maintenance protective device - Google Patents
A kind of elevator pit being equipped with maintenance protective device Download PDFInfo
- Publication number
- CN108382943A CN108382943A CN201810424891.1A CN201810424891A CN108382943A CN 108382943 A CN108382943 A CN 108382943A CN 201810424891 A CN201810424891 A CN 201810424891A CN 108382943 A CN108382943 A CN 108382943A
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- CN
- China
- Prior art keywords
- shaft
- protection device
- pit
- rope
- main shaft
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0043—Devices enhancing safety during maintenance
- B66B5/005—Safety of maintenance personnel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/28—Buffer-stops for cars, cages, or skips
- B66B5/282—Structure thereof
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The present invention relates to elevator technology field, specifically a kind of elevator pit equipped with protective device, including pit body, transmission mechanism, first class of protection device and secondary protection device；The transmission mechanism includes main shaft, gear set and driving lever, and the main shaft is mounted in pit body, and the outside of the pit body is equipped with the swinging handle being connect with main shaft；The first class of protection device includes top rope block, pressure rope cam and speed limiter wire rope；The main shaft can stir pressure rope cam rotation by driving lever；The secondary protection device includes shaft, swing arm, support column and buffer, and the shaft is mounted in pit body, and the both ends of the swing arm are connect with shaft and support column respectively, and the buffer is mounted on the top of support column；The main shaft is connect by gear set with shaft.The present invention by be arranged two class protection device, and outside elevator pit switch first class of protection device and secondary protection device state, improve safety, prevent service personnel's injures and deaths.
Description
Technical field
The present invention relates to elevator technology field, specifically a kind of elevator pit for being equipped with maintenance protective device.
Background technology
Overhauling elevator personnel need often to enter elevator pit progress upkeep operation, before entering elevator pit, maintenance
Elevator can be switched to inspecting state by personnel by inspection switch by operating status, and elevator is prevented to refer to outgoing call from being exhaled in responding
It enables, to prevent passenger operation elevator.But lift car may suddenly decline because of a variety of causes, for example traction machine band-type brake loses
Effect, limiter of speed failure, the maloperation etc. of electric fault and service personnel, cause service personnel's injures and deaths.
Application No. is 201220253033.3 utility model patents to disclose a kind of elevator pit maintenance protective device, leads to
The position that hook adjusts cord-pressing block is crossed, when elevator normal operation, cord-pressing block hangs over the normal gear of hook, cord-pressing block free end
Farther out from speed limiter wire rope, there are sufficient gap, speed limiter wire rope can be free between speed limiter wire rope and cord-pressing block
Cord-pressing block is first fixed on the action gear of hook by movement when maintenance personal enters elevator pit, and cord-pressing block free end is close
Speed limiter wire rope makes cord-pressing block and the top rope pre- damp governor steel wire rope of block, if elevator declines suddenly, cord-pressing block and top are restricted
Clamping force increases between block, lifts safety tongs, safety tongs action, stop elevator car, to ensure elevator pit operating personnel
Safety.Elevator pit maintenance protective device has the following disadvantages：(1) switching hook gear need in elevator pit into
Row, elevator may decline and cause service personnel's injures and deaths during this, and there are security risks；(2) fixed plate and cage guide
It is fixedly connected, can generate moment of flexure to cage guide during lift car declines, be different from safety tongs and cage guide is produced
Raw Bidirectional-squeezing power, moment of flexure are easier to damage cage guide, increase maintenance cost, influence the use of elevator from now on.
Application No. is the applications for a patent for invention of 201310507691.X to disclose a kind of elevator pit maintenance protective device, when
When lift car declines because of failure, lift car is propped up with slide bar, elevator is prevented to continue to decline, to ensure that elevator pit is made
The safety of industry personnel, when elevator is in non-inspecting state, slide bar does not interfere the decline of elevator close to the side wall of elevator pit.
Elevator pit maintenance protective device has the following disadvantages：(1) position of switching slide bar needs to carry out in elevator pit, this
Elevator may decline and cause service personnel's injures and deaths in the process, and there are security risks, in the embodiment of the application for a patent for invention
Connect with driving mechanism although describing hinge in two, openly how driving mechanism by hinge does not make slide bar move；
(2) lift car declined with a slide bar support easily causes lift car to damage, after lift car can be most probably pierced
Continue to decline and lead to service personnel's injures and deaths；(3) hinge, limiting plate are fixedly connected with cage guide, are declined in lift car
During can generate moment of flexure to cage guide, be different from the Bidirectional-squeezing power that is generated to cage guide of safety tongs, moment of flexure is more held
Easily cage guide is damaged, increases maintenance cost, influences the use of elevator from now on.
Invention content
The purpose of the present invention is to solve above-mentioned the deficiencies in the prior art, provide a kind of electricity being equipped with maintenance protective device
Terraced pit by the way that two class protection device is arranged, and switches first class of protection device and secondary protection device outside elevator pit
State, improve safety, prevent service personnel's injures and deaths.
The technical problems to be solved by the invention are realized using following technical scheme：A kind of be equipped with overhauls protective device
Elevator pit, including pit body, transmission mechanism, first class of protection device and secondary protection device；The transmission mechanism includes main shaft, tooth
Wheel group and driving lever, the major axis horizontal are mounted in pit body, and the outside of the pit body is equipped with the swinging handle being connect with main shaft；Institute
It includes top rope block, pressure rope cam and speed limiter wire rope to state first class of protection device, and the top rope block is mounted in pit body, the pressure
Rope cam is articulated in pit body, and the speed limiter wire rope is located between top rope block and pressure rope cam；The driving lever connects with main shaft
It connects, the main shaft can stir pressure rope cam rotation by driving lever；The secondary protection device includes shaft, swing arm, support column
And buffer, the shaft are vertically installed in pit body, the both ends of the swing arm are connect with shaft and support column respectively, the branch
Dagger is in vertical direction, and the buffer is mounted on the top of support column；The main shaft is connect by gear set with shaft.
Technical scheme of the present invention also has：The secondary protection device is equipped with more sets, and the gear set includes active cylinder
Gear, driven cylindrical gear, first bevel gear and second bevel gear, the active roller gear is connect with main shaft, described driven
Roller gear is mounted in pit body by driven shaft and is engaged with active roller gear, and the first bevel gear is mounted on driven shaft
On, it is engaged in the shaft of second bevel gear a set of secondary protection device installed therein and with first bevel gear；More set institutes
State the rotating shaft transmission connection of secondary protection device.Using the technical program, lift car is supported by more support columns, is more pacified
It is complete reliable, it is set in addition, realizing level by active roller gear, driven cylindrical gear, first bevel gear and second bevel gear
Transmission between the main shaft set and the shaft being vertically arranged.
Technical scheme of the present invention also has：The secondary protection device is equipped with four sets, and four sets of secondary protection devices are in
The shaft of rectangular arrangement, four sets of secondary protection devices passes sequentially through chain-drive mechanism connection, more set secondary protection devices
Shaft can rotate in the same direction, at the same speed.
Technical scheme of the present invention also has：The shaft is equipped with limiting plate, and the swing arm is connect with shaft loose key, described
Swing arm is located at the top of limiting plate, and buffer spring is equipped between the limiting plate and swing arm.Two level is hit when lift car declines
When protective device, kinetic energy is largely absorbed by buffer, also has sub-fraction that can be consumed by the deformation of support column, using this skill
Art scheme, shaft can drive swing arm rotation and swing arm can slide axially with respect to shaft, when support column is hit by lift car
When deformation, swing arm can move down and compress buffer spring, to prevent rotation stop axis or swing arm bending, ensure secondary protection device just
It is often used.
Technical scheme of the present invention also has：The lower end of the support column is contacted with the bottom surface of pit body, passes through pit body bottom surface
Deformation absorbs kinetic energy when a part of lift car declines.
Technical scheme of the present invention also has：The secondary protection device further includes second support, and the shaft is mounted on the
On two holders, the second support is bolted on the side wall of pit body.
Technical scheme of the present invention also has：The first class of protection device further includes first support, and the first support passes through
It is bolted on the side wall of pit body, top rope block mounting plate is installed in the first support, block is restricted by leading in the top
It is slidably mounted on the rope block mounting plate of top to bar, top rope spring is equipped between the top rope block and top rope block mounting plate.It adopts
With the technical program, braking distance is long, prevents cage guide from being damaged because bearing excessively high load.
Technical scheme of the present invention also has：The pressure rope cam and top rope block are equipped with and the matched limit of speed limiter wire rope
Position slot, prevents steel wire rope from deviateing.
Compared with the existing technology, the present invention is equipped with having the beneficial effect that for the elevator pit of maintenance protective device：(1) if
The improper decline of lift car can trigger first class of protection device first, and pressure rope cam is fixed under the action of frictional force, grasps at this time
Making swinging handle can only make driving lever reset and cannot make pressure rope cam return, therefore after service personnel debugs, need elder generation
Pressure rope cam is pulled manually in elevator pit, so that it is ridden on driving lever under the effect of gravity, at this time first class of protection
Device can ensure the safety of service personnel, and then service personnel exits elevator pit and by first class of protection device and second class protection
Device resets, and makes lift car that can normally decline, and therefore, the present invention greatly improves safety by the way that two class protection device is arranged
Property；(2) state that can switch first class of protection device and secondary protection device by swinging handle outside elevator pit, prevents
Service personnel's injures and deaths when entering switching state in elevator pit, it is safe；(3) more support columns are set, and are being supported
The top of column is equipped with buffer, and the kinetic energy that lift car declines mainly is absorbed by multiple buffers, prevents lift car from damaging；
(4) gearing of first class of protection device and secondary protection device is realized by transmission mechanism, the process of switching state is simple and convenient；
(5) first class of protection device and secondary protection device are not connect with cage guide, therefore while being triggered will not be to cage guide
Moment of flexure is generated, prevents cage guide from damaging, reduces maintenance cost；(6) in moist elevator pit, electrical components easily occur
Personnel contact is damaged or caused to failure, and the present invention does not need electrical control, safer reliable.
Description of the drawings
Fig. 1 is the front view of the off working state for the elevator pit that the present invention is equipped with maintenance protective device.
Fig. 2 is the partial enlarged view in the portions A in Fig. 1.
Fig. 3 is the vertical view of the off working state for the elevator pit that the present invention is equipped with maintenance protective device.
Fig. 4 is the partial enlarged view in the portions B in Fig. 3.
Fig. 5 is the partial enlarged view in the portions C in Fig. 3.
Fig. 6 be Fig. 5 in D to sectional view.
Fig. 7 is the partial enlarged view in the portions E in Fig. 6.
Fig. 8 is the vertical view of the working condition for the elevator pit that the present invention is equipped with maintenance protective device.
Fig. 9 be Fig. 8 in F to sectional view.
Figure 10 is the partial enlarged view in the portions G in Fig. 9.
In figure：1, pit body, 2, main shaft, 3, driving lever, 4, swinging handle, 5, top rope block, 6, pressure rope cam, 7, limiter of speed steel wire
Rope, 8, shaft, 9, swing arm, 10, support column, 11, buffer, 12, active roller gear, 13, driven cylindrical gear, 14, first
Bevel gear, 15, second bevel gear, 16, driven shaft, 17, chain-drive mechanism, 18, limiting plate, 19, buffer spring, 20, second
Frame, 21, first support, 22, top rope block mounting plate, 23, guide rod, 24, top rope spring, 25, limiting slot, 26, lift car.
Specific implementation mode
In order to clarify the technical characteristics of the invention, making to the specific embodiment of the invention below according to attached drawing further
Explanation.
As shown in Fig. 1~Figure 10, a kind of elevator pit being equipped with maintenance protective device, including pit body 1, transmission mechanism, one
Grade protective device and secondary protection device.
Transmission mechanism includes main shaft 2, gear set, driving lever 3 and chain-drive mechanism 17, and main shaft 2 is horizontally arranged in pit body 1,
The outside of pit body 1 is equipped with the swinging handle 4 being connect with main shaft 2.
As shown in Fig. 5, Fig. 7 and Figure 10, first class of protection device includes top rope block 5, pressure rope cam 6,7 and of speed limiter wire rope
First support 21.First support 21 is bolted on the side wall of pit body 1, and top rope block is installed in first support 21
Mounting plate 22, top rope block 5 are slidably mounted on by guide rod 23 on top rope block mounting plate 22, top rope block 5 and top rope block peace
Top rope spring 24 is equipped between loading board 22.Pressure rope cam 6 is articulated in first support 21.Speed limiter wire rope 7 is located at top rope block 5
Between pressure rope cam 6, speed limiter wire rope 7 is connect with the voussoir of safety tongs.Pressure rope cam 6 and top rope block 5 are equipped with and limit
7 matched limiting slot 25 of fast device steel wire rope.
Driving lever 3 is connect with main shaft 2, and main shaft 2 can be stirred pressure rope cam 6 by driving lever 3 and be rotated.As shown in Fig. 7, pressure rope
It is contacted under the effect of gravity with driving lever 3 when 6 off working state of cam, speed limiter wire rope 7 is not clamped.When driving lever 3
Pressure rope cam 6 is stirred when rotating counterclockwise, is gradually reduced at a distance from speed limiter wire rope 7, as shown in Figure 10, when pressure is restricted
After cam 6 turns to operating position, speed limiter wire rope 7, which pulls upwardly on, to be continued to rotate counterclockwise with dynamic pressure rope cam 6, due to
Point on the partial contour line of pressure rope cam 6 gradually increases at a distance from its drive-connecting shaft, therefore speed limiter wire rope 7 can restrict pressure
Cam 6 the more draws the more tight, to press rope cam 6 to clamp speed limiter wire rope 7 with top rope block 5.
As shown in figures 3 and 8, secondary protection device is equipped with four sets, and four sets of secondary protection devices are in rectangular layout.Two
Grade protective device includes shaft 8, swing arm 9, support column 10, buffer 11 and second support 20.Second support 20 is connected by bolt
It connects on the side wall of pit body 1.Shaft 8 is vertically installed in second support 20.
Main shaft 2 is connect by gear set with the shaft 8 of wherein a set of secondary protection device, specifically, as shown in Fig. 2, tooth
Wheel group includes active roller gear 12, driven cylindrical gear 13, first bevel gear 14 and second bevel gear 15.Active roller gear
12 connect with main shaft 2, driven cylindrical gear 13 by driven shaft 16 be mounted on second support 20 on and with active roller gear 12
Engagement.First bevel gear 14 be mounted on driven shaft 16 on, second bevel gear 15 be mounted on shaft 8 on and with first bevel gear 14
Engagement.The shaft 8 of four sets of secondary protection devices is sequentially connected by chain-drive mechanism 17, the shaft 8 of four sets of secondary protection devices
It can rotate in the same direction, at the same speed.
The both ends of swing arm 9 are connect with shaft 8 and support column 10 respectively.As shown in Fig. 2, shaft 8 is equipped with limiting plate 18, pendulum
Arm 9 is connect with 8 loose key of shaft, and swing arm 9 is located at the top of limiting plate 18, and buffer spring is equipped between limiting plate 18 and swing arm 9
19.Support column 10 is in vertical direction, and the lower end of support column 10 is contacted with the bottom surface of pit body 1.Buffer 11 is mounted on support column 10
Top.When lift car 26, which declines, hits secondary protection device, kinetic energy is largely absorbed by buffer 11, is also had one small
Part can be consumed by the deformation of support column 10, and shaft 8 can drive the rotation of swing arm 9 and swing arm 9 can be axial with respect to shaft 8 sliding
Dynamic, when support column 10 is by 26 collision deformation of lift car, swing arm 9 can move down and compress buffer spring 19, to prevent rotation stop
9 bending of axis 8 or swing arm, ensures the normal use of secondary protection device.
Before service personnel enters elevator pit, swinging handle 4 is operated, the rotation of main shaft 2 is simultaneously by first class of protection device and two
Grade protective device is in working condition by off working state switching, is rotated specifically, main shaft 2 stirs pressure rope cam 6 by driving lever 3,
Pressure rope cam 6 is set to clamp speed limiter wire rope 7 with top rope block 5；Meanwhile main shaft 2 passes through the wherein a set of level-one of gear set drive
The shaft 8 of protective device rotates, since the shaft 8 of four sets of first class of protection devices is connected by chain-drive mechanism 17, four sets
The shaft 8 of first class of protection device rotates simultaneously, and shaft 8 is moved to the lower section of lift car 26 by the drive supporting rod 10 of swing arm 9.
If 26 improper decline of lift car, first class of protection device, work of the pressure rope cam 6 in frictional force can be triggered first
With lower fixation, operating swinging handle 4 at this time can only be such that driving lever 3 resets and pressure rope cam 6 cannot be made to reset, therefore as maintenance people
After member's debugging, needs first manually to pull pressure rope cam 6 in elevator pit, it is made to ride under the effect of gravity
On driving lever 3, first class of protection device can ensure the safety of service personnel at this time, and then service personnel exits elevator pit and by one
Grade protective device and secondary protection device reset, and make lift car 26 that can normally decline.
The embodiment of the present invention is elaborated above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Example, within the knowledge of a person skilled in the art, can also do without departing from the purpose of the present invention
Go out various change.
Claims (8)
1. a kind of elevator pit equipped with protective device, including pit body (1), it is characterised in that：Further include transmission mechanism, level-one guarantor
Protection unit and secondary protection device；The transmission mechanism includes main shaft (2), gear set and driving lever (3), and the main shaft (2) is horizontal
In pit body (1), the outside of the pit body (1) is equipped with the swinging handle (4) being connect with main shaft (2)；The first class of protection
Device includes top rope block (5), pressure rope cam (6) and speed limiter wire rope (7), and the top rope block (5) is mounted in pit body (1),
The pressure rope cam (6) is articulated in pit body (1), and the speed limiter wire rope (7) is located at top rope block (5) and pressure rope cam (6)
Between；The driving lever (3) connect with main shaft (2), and the main shaft (2) can be stirred pressure rope cam (6) by driving lever (3) and be rotated；
The secondary protection device includes shaft (8), swing arm (9), support column (10) and buffer (11), and the shaft (8) is pacified vertically
In pit body (1), the both ends of the swing arm (9) are connect with shaft (8) and support column (10) respectively, and the support column (10) is in
Vertical direction, the buffer (11) are mounted on the top of support column (10)；The main shaft (2) passes through gear set and shaft (8)
Connection.
2. the elevator pit according to claim 1 equipped with protective device, it is characterised in that：The secondary protection device is set
It includes active roller gear (12), driven cylindrical gear (13), first bevel gear (14) and the second cone to have more sets, the gear set
Gear (15), the active roller gear (12) connect with main shaft (2), and the driven cylindrical gear (13) passes through driven shaft (16)
It is engaged in pit body (1) and with active roller gear (12), the first bevel gear (14) is mounted on driven shaft (16),
It is nibbled in the shaft (8) of second bevel gear (15) a set of secondary protection device installed therein and with first bevel gear (14)
It closes；The shaft (8) for more covering the secondary protection device is sequentially connected.
3. the elevator pit according to claim 2 equipped with protective device, it is characterised in that：The secondary protection device is set
There are four sets, four sets of secondary protection devices are in rectangular layout, and the shaft (8) of four sets of secondary protection devices passes sequentially through chain
Transmission mechanism (17) connects.
4. the elevator pit according to claim 1 equipped with protective device, it is characterised in that：The shaft (8) is equipped with
Limiting plate (18), the swing arm (9) connect with shaft (8) loose key, and the swing arm (9) is located at the top of limiting plate (18), described
Buffer spring (19) is equipped between limiting plate (18) and swing arm (9).
5. the elevator pit according to any one of claims 1 to 4 equipped with protective device, it is characterised in that：The support column
(10) lower end is contacted with the bottom surface of pit body (1).
6. the elevator pit according to any one of claims 1 to 4 equipped with protective device, it is characterised in that：The two level is protected
Protection unit further includes second support (20), and the shaft (8) is mounted in second support (20), and the second support (20) passes through
It is bolted on the side wall of pit body (1).
7. the elevator pit according to any one of claims 1 to 4 equipped with protective device, it is characterised in that：The level-one is protected
Protection unit further includes first support (21), and the first support (21) is bolted on the side wall of pit body (1), institute
It states and is installed with top rope block mounting plate (22) in first support (21), the top rope block (5) is slidably pacified by guide rod (23)
On top rope block mounting plate (22), top rope spring (24) is equipped between the top rope block (5) and top rope block mounting plate (22).
8. the elevator pit according to any one of claims 1 to 4 equipped with protective device, it is characterised in that：The pressure rope is convex
It takes turns (6) and top rope block (5) is equipped with and speed limiter wire rope (7) matched limiting slot (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810424891.1A CN108382943A (en) | 2018-05-07 | 2018-05-07 | A kind of elevator pit being equipped with maintenance protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810424891.1A CN108382943A (en) | 2018-05-07 | 2018-05-07 | A kind of elevator pit being equipped with maintenance protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108382943A true CN108382943A (en) | 2018-08-10 |
Family
ID=63070656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810424891.1A Withdrawn CN108382943A (en) | 2018-05-07 | 2018-05-07 | A kind of elevator pit being equipped with maintenance protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108382943A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109353909A (en) * | 2018-12-21 | 2019-02-19 | 日立电梯（中国）有限公司 | A kind of removable arresting stop of the screw of elevator |
-
2018
- 2018-05-07 CN CN201810424891.1A patent/CN108382943A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109353909A (en) * | 2018-12-21 | 2019-02-19 | 日立电梯（中国）有限公司 | A kind of removable arresting stop of the screw of elevator |
| CN109353909B (en) * | 2018-12-21 | 2024-06-28 | 日立电梯（中国）有限公司 | Screw type movable stopping device of elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180810 |
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| WW01 | Invention patent application withdrawn after publication |