CN108439124A - A kind of overhauling elevator protective device - Google Patents
A kind of overhauling elevator protective device Download PDFInfo
- Publication number
- CN108439124A CN108439124A CN201810424890.7A CN201810424890A CN108439124A CN 108439124 A CN108439124 A CN 108439124A CN 201810424890 A CN201810424890 A CN 201810424890A CN 108439124 A CN108439124 A CN 108439124A
- Authority
- CN
- China
- Prior art keywords
- protection device
- shaft
- rope
- guide rod
- secondary protection
- 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
- B66B5/0056—Safety of maintenance personnel by preventing crushing
-
- 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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The present invention relates to elevator technology field, specifically a kind of overhauling elevator protective device, including pit body, transmission mechanism, first class of protection device and secondary protection device；The transmission mechanism includes thread spindle, guide rod, first movement part, the second moving member, skewback, rack and pinion；The first class of protection device includes top rope block, pressure rope cam and speed limiter wire rope；The skewback is fixedly connected with first movement part, and skewback is equipped with along the gradual inclined inclined-plane of length direction of guide rod, can be passed through inclined-plane band dynamic pressure rope cam when the skewback is moved along guide rod and be rotated；The secondary protection device includes shaft, swing arm, support column and buffer；The rack is fixedly connected with the second moving member, and the gear is mounted in shaft, the rack and pinion engagement.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 overhauling elevator 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 mistake
Elevator may decline and cause service personnel's injures and deaths in journey, and there are security risks, in the embodiment two of the application for a patent for invention
It describes hinge in although connect with driving mechanism, openly how driving mechanism by hinge does not make slide bar move；(2)
The lift car declined with a slide bar support easily causes lift car to damage, and lift car continues after being most probably pierced
Decline and leads to service personnel's injures and deaths；(3) hinge, limiting plate are fixedly connected with cage guide, in the mistake that lift car declines
Cheng Zhonghui generates moment of flexure to cage guide, is different from the Bidirectional-squeezing power that safety tongs generates cage guide, moment of flexure is easier will
Cage guide damages, and 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 overhauling elevator protective device, lead to
Setting two class protection device is crossed, and switches the state of first class of protection device and secondary protection device outside elevator pit, is carried
High security prevents service personnel's injures and deaths.
The technical problems to be solved by the invention are realized using following technical scheme：A kind of overhauling elevator protective device,
Including pit body, transmission mechanism, first class of protection device and secondary protection device；The transmission mechanism includes thread spindle, guide rod,
One moving member, the second moving member, skewback, rack and pinion；The thread spindle and guide rod are horizontally arranged in pit body, described
The outside of pit body is equipped with the swinging handle with screw thread axis connection, and the first movement part and the second moving member are slided with guide rod
With merging and thread spindle screw-thread fit；The first class of protection device includes top rope block, presses rope cam and speed limiter wire rope, described
Top rope block is mounted in pit body, and the pressure rope cam is articulated in pit body, and the speed limiter wire rope is located at top rope block and pressure is restricted
Between cam；The skewback is fixedly connected with first movement part, and skewback is gradually inclined equipped with the length direction along guide rod
Inclined-plane can be rotated when the skewback is moved along guide rod by inclined-plane band dynamic pressure rope cam；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 respectively with shaft and
Support column connects, and the support column is in vertical direction, and the buffer is mounted on the top of support column；The rack and second moves
Moving part is fixedly connected, and the gear is mounted in shaft, the rack and pinion engagement.
Technical scheme of the present invention also has：The secondary protection device is equipped with more sets, and the gear is installed therein a set of
In the shaft of secondary protection device；Cover the rotating shaft transmission connection of the secondary protection device more.Using the technical program, by more
Root support column supports lift car, safer reliable.
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, overhauling elevator protective device of the present invention has the beneficial effect that：(1) if lift car is non-just
Often decline, first class of protection device can be triggered first, pressure rope cam is fixed under the action of frictional force, operates swinging handle at this time only
Skewback can be made to reset and pressure rope cam return cannot be made, therefore after service personnel debugs, needed first in elevator pit
Pressure rope cam is pulled manually, so that it is ridden on skewback under the effect of gravity, first class of protection device can ensure at this time
The safety of service personnel, then service personnel exit elevator pit and reset first class of protection device and secondary protection device, make
Lift car can normally decline, and therefore, the present invention greatly improves safety by the way that two class protection device is arranged；(2) in electricity
The state that first class of protection device and secondary protection device can be switched outside terraced pit by swinging handle, prevents service personnel from existing
Injures and deaths when switching state, safe in into elevator pit；(3) more support columns are set, and are set on the top of support column
There are buffer, the kinetic energy that lift car declines mainly to be absorbed by multiple buffers, prevents lift car from damaging；(4) pass through transmission
Mechanism realizes the gearing of first class of protection device and secondary protection device, and 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 will not generate moment of flexure to cage guide when being triggered, and are prevented
Only cage guide damages, and reduces maintenance cost；(6) in moist elevator pit, electrical components easily break down damage or
Cause personnel contact, 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 of overhauling elevator protective device of the present invention.
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 of overhauling elevator protective device of the present invention.
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. 3 in D to 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 of overhauling elevator protective device of the present invention.
Fig. 9 be Fig. 8 in F to view.
Figure 10 is the partial enlarged view in the portions G in Fig. 9.
In figure：1, pit body, 2, thread spindle, 3, guide rod, 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, first movement part, the 13, second moving member, 14, skewback,
15, rack, 16, gear, 17, chain-drive mechanism, 18, limiting plate, 19, buffer spring, 20, second support, 21, first support,
22, top rope block mounting plate, 23, guide rod, 24, top rope spring, 25, limiting slot, 26, inclined-plane, 27, 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 overhauling elevator protective device, including pit body 1, transmission mechanism, first class of protection device
And secondary protection device.
Transmission mechanism include thread spindle 2, guide rod 3, first movement part 12, the second moving member 13, skewback 14, rack 15,
Gear 16 and chain-drive mechanism 17.
Thread spindle 2 and guide rod 3 are horizontally arranged in pit body 1, and the outside of pit body 1 is equipped with shakes with what thread spindle 2 was connect
Fixed handle 4.First movement part 12 and the second moving member 13 be slidably matched with guide rod 3 and with 2 screw-thread fit of thread spindle, comparison
Fig. 3 and Fig. 8, when operation swinging handle 4 makes thread spindle 2 rotate, thread spindle 2 can drive constitutes the first secondary shifting of friction with it
Moving part 12 and the second moving member 13 are moved along guide rod 3.
As shown in Fig. 4, 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.As shown in figure 4, pressure rope cam 6 and top rope block 5
It is equipped with and 7 matched limiting slot 25 of speed limiter wire rope.
Skewback 14 is fixedly connected with first movement part 12, and skewback 14 is gradually tilted equipped with the length direction along guide rod 3
Inclined-plane 26, " inclination " refers to that it is inclined along the track of the length direction of guide rod 3, and inclined-plane 26 is plane or curved surface, this
Embodiment is preferably curved surface.As shown in fig. 7, being connect under the effect of gravity with inclined-plane 26 when pressure rope 6 off working state of cam
It touches, speed limiter wire rope 7 is not clamped.When first movement part 12 is moved along guide rod 3, skewback 14 is by inclined-plane 26 with dynamic pressure
Cam 6 of restricting rotates, and pressure rope cam is gradually reduced at a distance from speed limiter wire rope 7, as shown in Figure 10, when pressure rope cam 6 rotates
To after 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 pressure rope cam 6
Partial contour line on point gradually increase at a distance from its drive-connecting shaft, therefore speed limiter wire rope 7 can will pressure rope cam 6 more draw
It is tighter, to press rope cam 6 to clamp speed limiter wire rope 7 with top rope block 5.
Secondary protection device is equipped with four sets, and four sets of secondary protection devices are in rectangular layout.Secondary protection device includes
Shaft 8, swing arm 9, support column 10, buffer 11 and second support 20.Second support 20 is bolted mounted on pit body 1
On side wall.Shaft 8 is vertically installed in second support 20.
As shown in Figure 2 and Figure 5, rack 15 is fixedly connected with the second moving member 13, a set of two level installed therein of gear 16
In the shaft 8 of protective device, rack 15 is engaged with gear 16, when the second moving member 13 is moved along guide rod 3, the second moving member
13 drive shaft 8 to rotate by rack 15 and gear 16.As shown in figures 3 and 8, the shaft 8 of four sets of secondary protection devices passes through
Chain-drive mechanism 17 is sequentially connected, and the shaft 8 of four sets of secondary protection devices 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 19 is equipped between limiting plate 18 and swing arm 9.
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 the top of support column 10
End.When lift car 27, which declines, hits secondary protection device, kinetic energy is largely absorbed by buffer 11, also there is sub-fraction
It can be consumed by the deformation of support column 10, shaft 8 can drive the rotation of swing arm 9 and swing arm 9 can slide axially with respect to shaft 8, when
When support column 10 is by 27 collision deformation of lift car, swing arm 9 can move down and compress buffer spring 19, to prevent rotation stop axis 8 or
9 bending of swing arm, ensures the normal use of secondary protection device.
Before service personnel enters elevator pit, operate swinging handle 4, the rotation of thread spindle 2 simultaneously by first class of protection device and
Secondary protection device is in working condition by off working state switching, specifically, thread spindle 2 drives first movement part 12 and the simultaneously
Two moving members 13 are moved along guide rod 3, and skewback 14 makes pressure rope cam 6 clamp speed limiter wire rope 7 with top rope block 5, meanwhile, the
Two moving members 13 drive the shaft 8 of wherein a set of first class of protection device to rotate by rack 15 and gear 16, due to four sets of level-ones
The shaft 8 of protective device is connected by chain-drive mechanism 17, therefore the shaft 8 of four sets of first class of protection devices rotates simultaneously, shaft 8
The lower section of lift car 27 is moved to by the drive supporting rod 10 of swing arm 9.
If 27 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 skewback 14 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 skewback 14, first class of protection device can ensure the safety of service personnel at this time, and then service personnel exits elevator pit and will
First class of protection device and secondary protection device reset, and make lift car 27 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 overhauling elevator protective device, including pit body (1), it is characterised in that：Further include transmission mechanism, first class of protection device
And secondary protection device；The transmission mechanism includes thread spindle (2), guide rod (3), first movement part (12), the second moving member
(13), skewback (14), rack (15) and gear (16)；The thread spindle (2) and guide rod (3) are horizontally arranged at pit body (1)
On, the outside of the pit body (1) is equipped with the swinging handle (4) being connect with thread spindle (2), the first movement part (12) and second
Moving member (13) be slidably matched with guide rod (3) and with thread spindle (2) screw-thread fit；The first class of protection device includes that top is restricted
Block (5), pressure rope cam (6) and speed limiter wire rope (7), the top rope block (5) are mounted in pit body (1), the pressure rope cam
(6) it is articulated in pit body (1), the speed limiter wire rope (7) is located between top rope block (5) and pressure rope cam (6)；The skewback
(14) it is fixedly connected with first movement part (12), skewback (14) is gradually inclined oblique equipped with the length direction along guide rod (3)
Face (26) can be rotated when the skewback (14) is mobile along guide rod (3) by inclined-plane (26) band dynamic pressure rope cam (6)；It is described
Secondary protection device includes shaft (8), swing arm (9), support column (10) and buffer (11), and the shaft (8) is vertically installed at
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 rack (15) and the fixed company of the second moving member (13)
It connects, the gear (16) is mounted in shaft (8), and the rack (15) is engaged with gear (16).
2. overhauling elevator protective device according to claim 1, it is characterised in that：The secondary protection device is equipped with more
It covers, in the shaft (8) of gear (16) a set of secondary protection device installed therein；Cover turning for the secondary protection device more
Axis (8) is sequentially connected.
3. overhauling elevator protective device according to claim 2, it is characterised in that：The secondary protection device is equipped with four
Set, 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 drive
Mechanism (17) connects.
4. overhauling elevator protective device according to claim 1, 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), the limiting plate
(18) buffer spring (19) is equipped between swing arm (9).
5. overhauling elevator protective device according to any one of claims 1 to 4, it is characterised in that：The support column (10)
Lower end is contacted with the bottom surface of pit body (1).
6. overhauling elevator protective device according to any one of claims 1 to 4, it is characterised in that：The secondary protection device
Further include second support (20), the shaft (8) is mounted in second support (20), and the second support (20) is connected by bolt
It connects on the side wall of pit body (1).
7. overhauling elevator protective device according to any one of claims 1 to 4, it is characterised in that：The first class of protection device
Further include first support (21), the first support (21) is bolted on the side wall of pit body (1), and described first
Top rope block mounting plate (22) is installed on holder (21), the top rope block (5) is slidably mounted on top by guide rod (23)
It restricts on block mounting plate (22), top rope spring (24) is equipped between the top rope block (5) and top rope block mounting plate (22).
8. overhauling elevator protective device according to any one of claims 1 to 4, it is characterised in that：Pressure rope cam (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 |
|---|---|---|---|
| CN201810424890.7A CN108439124A (en) | 2018-05-07 | 2018-05-07 | A kind of overhauling elevator protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810424890.7A CN108439124A (en) | 2018-05-07 | 2018-05-07 | A kind of overhauling elevator protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108439124A true CN108439124A (en) | 2018-08-24 |
Family
ID=63202332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810424890.7A Withdrawn CN108439124A (en) | 2018-05-07 | 2018-05-07 | A kind of overhauling elevator protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108439124A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379066A (en) * | 2019-08-02 | 2019-10-25 | 深圳怡化电脑股份有限公司 | Transmission component and finance device with the defencive function that crosses the border |
-
2018
- 2018-05-07 CN CN201810424890.7A patent/CN108439124A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379066A (en) * | 2019-08-02 | 2019-10-25 | 深圳怡化电脑股份有限公司 | Transmission component and finance device with the defencive function that crosses the border |
| CN110379066B (en) * | 2019-08-02 | 2024-05-10 | 深圳怡化电脑股份有限公司 | Transmission assembly with boundary crossing protection function and financial equipment |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180824 |
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| WW01 | Invention patent application withdrawn after publication |