CN108341316A - A kind of protective device for overhauling elevator - Google Patents
A kind of protective device for overhauling elevator Download PDFInfo
- Publication number
- CN108341316A CN108341316A CN201810381777.5A CN201810381777A CN108341316A CN 108341316 A CN108341316 A CN 108341316A CN 201810381777 A CN201810381777 A CN 201810381777A CN 108341316 A CN108341316 A CN 108341316A
- Authority
- CN
- China
- Prior art keywords
- rope
- block
- mounting bracket
- cam
- pressure
- 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.)
- Withdrawn
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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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
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- 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
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The present invention relates to elevator technology field, specifically a kind of protective device for overhauling elevator, including pressure rope cam, top rope block, speed limiter wire rope, fixing bracket, pressure rope cam mounting bracket, top rope block mounting bracket and ratchet mechanism；The fixing bracket is fixedly mounted on the side wall of pit, and the fixing bracket is equipped with long guiding hole and leading screw；The pressure rope cam mounting bracket is equipped with the first sliding block being slidably matched with long guiding hole, and the top rope block mounting bracket is equipped with the second sliding block being slidably matched with long guiding hole, and the pressure rope cam mounting bracket and top rope block mounting bracket coordinate with threads of lead screw；The top rope block is mounted on the rope block mounting bracket of top.Elevator pit maintenance protective device of the present invention has the beneficial effect that：Can quick and easy, labour-saving release the locking and switching state of pressure rope cam and top rope block to speed limiter wire rope, moreover it is possible to prevent cage guide from damaging, reduce maintenance cost.
Description
Technical field
The present invention relates to elevator technology field, specifically a kind of protective device for overhauling elevator.
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
Movement, when maintenance personal enters elevator pit, the action gear that will first cord-pressing block be pressed to be fixed on hook, cord-pressing block freely terminates
Nearly 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
Clamping force increases between rope block, lifts safety tongs, safety tongs action, stop elevator car, to ensure elevator pit operation people
The safety of member.Elevator pit maintenance protective device has the following disadvantages：(1) if due to lift car improper decline and
Trigger protection device, cord-pressing block, speed limiter wire rope and top rope block can be locked under the action of frictional force, debug
Afterwards, it needs to use and is resetted cord-pressing block using larger external force, for example cord-pressing block is struck into go back to original position in such a way that hammer strikes, arduously
And it is easy to cause cord-pressing block damage；(2) it when the gear of switching hook, needs first to lift hook, then rotates cord-pressing block and right
Cord-pressing block is caught in by quasi- target card slot, is more troublesome；(3) fixed plate is fixedly connected with cage guide, is declined in lift car
Moment of flexure can be generated to cage guide in the process, be different from the Bidirectional-squeezing power that safety tongs generates cage guide, moment of flexure is easier
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 protection dress for overhauling elevator
It sets, by adjusting the position for the pivot for pressing rope cam, pressure rope cam and top rope block is released to speed limit with quick and easy, labour-saving
The locking of device steel wire rope.
The technical problems to be solved by the invention are realized using following technical scheme：A kind of protection for overhauling elevator
Device, including pressure rope cam, top rope block, speed limiter wire rope, fixing bracket, pressure rope cam mounting bracket, top rope block mounting bracket and
Ratchet mechanism；The fixing bracket is fixedly mounted on the side wall of pit, and the fixing bracket is equipped with leading in horizontal direction
To slot hole and leading screw, the end of the leading screw is equipped with knob；The pressure rope cam mounting bracket is equipped with matches with long guiding hole sliding
The first sliding block closed, the top rope block mounting bracket are equipped with the second sliding block being slidably matched with long guiding hole, the pressure rope cam
Mounting bracket and top rope block mounting bracket coordinate with threads of lead screw, and the leading screw can drive the first sliding block and the second sliding block when rotating
Opposite or reverse movement；The top rope block is mounted on the rope block mounting bracket of top；The pressure rope cam is articulated in pressure rope cam installation
On frame, the ratchet mechanism includes ratchet, retaining pawl and tension spring, and the ratchet is mounted on the pivot of pressure rope cam, described
Retaining pawl is articulated on pressure rope cam mounting bracket, and the retaining pawl is kept in contact under the action of tension spring with ratchet；It is described
Speed limiter wire rope be located at pressure rope cam and top rope block and between.
Technical scheme of the present invention also has：Top rope block mounting plate, the top rope block are installed on the top rope block mounting bracket
It is slidably mounted on the rope block mounting plate of top by guide rod, top rope bullet is equipped between the top rope block and top rope block mounting plate
Spring.Using 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.Using the technical program, when protective device is in off working state, speed limiter wire rope can move up and down simultaneously along limiting slot
And it does not deviate by.
Technical scheme of the present invention also has：The fixing bracket is bolted on the side wall of pit.
Compared with the existing technology, the present invention is used to overhaul having the beneficial effect that for the protective device of elevator：(1) if due to electricity
The improper decline of terraced car and trigger protection device, cord-pressing block, speed limiter wire rope and top rope block can be in the effects of frictional force
Under be locked, after debugging, only need to turn knob, leading screw driving pressure rope cam mounting bracket and top rope block mounting bracket are along being oriented to
Slot hole moves backward a distance, you can it unlocks, damage quick and easy, laborsaving and that pressure rope cam will not be caused；(2)
When needing pressure rope cam being switched to operating position by off-position, pressure rope cam need to be only rotated forward, due to ratchet machine
Structure has unidirectional stopping function, therefore ratchet mechanism can prevent pressure rope cam from inverting under the effect of gravity, work as needs
Will pressure rope cam return when, need to only pull retaining pawl makes retaining pawl and ratchet be detached from, work of the pressure rope cam in its own gravity
It is resetted with lower reversion, it is quick and easy and laborsaving；(3) fixing bracket is not connect with cage guide, therefore when protective device is triggered
Moment of flexure will not be generated to cage guide, prevent cage guide from damaging, reduce maintenance cost.
Description of the drawings
Fig. 1 is the front view of the off working state of protective device of the present invention for overhauling elevator.
Fig. 2 is the vertical view of the off working state of protective device of the present invention for overhauling elevator.
Fig. 3 is the rearview of the off working state of protective device of the present invention for overhauling elevator.
Fig. 4 is the front view of the working condition of protective device of the present invention for overhauling elevator.
Fig. 5 is the present invention for overhauling the front view when protective device of elevator releases locking state.
In figure：1, pressure rope cam, 2, top rope block, 3, speed limiter wire rope, 4, fixing bracket, 5, pressure rope cam mounting bracket,
6, top rope block mounting bracket, 7, pit, 8, long guiding hole, 9, leading screw, 10, knob, the 11, first sliding block, the 12, second sliding block, 13, spine
Wheel, 14, retaining pawl, 15, tension spring, 16, top rope block mounting plate, 17, guide rod, 18, top rope spring, 19, limiting slot.
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~fig. 5, a kind of protective device for overhauling elevator, including pressure rope cam 1, top rope block 2, speed limit
Device steel wire rope 3, fixing bracket 4, pressure rope cam mounting bracket 5, top rope block mounting bracket 6 and ratchet mechanism.
Fixing bracket 4 is bolted on the side wall for being fixedly mounted on pit 7, and it is in level side that fixing bracket 4, which is equipped with,
To long guiding hole 8 and leading screw 9, the end of leading screw 9 be equipped with knob 10.
Pressure rope cam mounting bracket 5 is equipped with the first sliding block 11 being slidably matched with long guiding hole 8, and top is restricted on block mounting bracket 6
Equipped with the second sliding block 12 being slidably matched with long guiding hole 8, pressure rope cam mounting bracket 5 and top restrict block mounting bracket 6 with 9 spiral shell of leading screw
Line coordinates, and leading screw 9 can drive 12 opposite or reverse movement of the first sliding block 11 and the second sliding block when rotating.
Top rope block 2 is mounted on top rope block mounting bracket 6, specifically, top rope block mounting plate 16 is installed on fixing bracket 4,
Top rope block 2 is slidably mounted on by guide rod 17 on top rope block mounting plate 16, between top rope block 2 and top rope block mounting plate 16
Equipped with top rope spring 18.
Pressure rope cam 1 is articulated on pressure rope cam mounting bracket 5, and ratchet mechanism includes ratchet 13, retaining pawl 14 and tension spring
15, ratchet 13 is mounted on the pivot of pressure rope cam 1, and retaining pawl 14 is articulated on pressure rope cam mounting bracket 5, retaining pawl 14
It is kept in contact with ratchet 14 under the action of tension spring 15.
Speed limiter wire rope 3 is located between top rope block 2 and pressure rope cam 1, and speed limiter wire rope 3 and the voussoir of safety tongs connect
It connects.Pressure rope cam 1 and top rope block 2 are equipped with and 3 matched limiting slot 16 of speed limiter wire rope.
As shown in FIG. 1 to 3, it is in off working state for overhauling the protective device of elevator, lift car can decline, limit
Fast device steel wire rope 3 can slide up and down.
When service personnel enters pit overhaul, need the protective device switching for being used to overhaul elevator being in working condition,
Rotate counterclockwise pressure rope cam 1 arrive operating position (as shown in Figure 4), due to press restrict cam 1 partial contour line on point and its
The distance of pivot gradually increases, therefore rope cam 1 is pressed to be gradually reduced at a distance from speed limiter wire rope 3, when pressure rope cam 1 rotates
To after operating position, speed limiter wire rope 3, which moves up, to be rotated counterclockwise with dynamic pressure rope cam 1, and speed limiter wire rope 3
Locking degree can increase with the rotation counterclockwise of pressure rope cam 1.During this, retaining pawl 14 prevents pressure rope cam 1 suitable
Hour hands rotate.
After maintenance, need that rope cam 1 will be pressed to reset, only need to pull retaining pawl 14 makes retaining pawl 14 and ratchet 13
It is detached from, pressure rope cam 1 inverts reset under the effect of gravity.
If due to lift car improper decline and trigger protection device, cord-pressing block 1, speed limiter wire rope 3 and top
Rope block 2 can be locked under the action of frictional force, after debugging, turn knob 10, the driving pressure rope cam mounting bracket of leading screw 9
5 move backward a distance with top rope block mounting bracket 6 along long guiding hole 8, you can unlock (as shown in Figure 5).
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 (4)
1. a kind of for overhauling the protective device of elevator, including pressure rope cam (1), top rope block (2), speed limiter wire rope (3) and
Fixing bracket (4), it is characterised in that：Further include pressure rope cam mounting bracket (5), top rope block mounting bracket (6) and ratchet mechanism；It is described
Fixing bracket (4) is fixedly mounted on the side wall of pit (7), and the guiding that the fixing bracket (4) is equipped in horizontal direction is grown
The end of hole (8) and leading screw (9), the leading screw (9) is equipped with knob (10)；The pressure rope cam mounting bracket (5) is equipped with and leads
The first sliding block (11) being slidably matched to slot hole (8), the top rope block mounting bracket (6) is equipped with matches with long guiding hole (8) sliding
The second sliding block (12) closed, pressure rope cam mounting bracket (5) and pushing up restrict block mounting bracket (6) with leading screw (9) screw-thread fit, institute
It can drive the first sliding block (11) and the second sliding block (12) in opposite directions when stating leading screw (9) rotation or reverse movement；The top rope block (2)
On top rope block mounting bracket (6)；The pressure rope cam (1) is articulated on pressure rope cam mounting bracket (5), the ratchet mechanism
Including ratchet (13), retaining pawl (14) and tension spring (15), the ratchet (13) is mounted on the pivot of pressure rope cam (1), institute
Retaining pawl (14) is stated to be articulated on pressure rope cam mounting bracket (5), the retaining pawl (14) under the action of tension spring (15) with
Ratchet (14) is kept in contact；The speed limiter wire rope (3) be located at pressure rope cam (1) and top restrict block (2) and between.
2. the protective device according to claim 1 for overhauling elevator, it is characterised in that：The top rope block mounting bracket
(6) top rope block mounting plate (16) is installed on, the top rope block (2) is slidably mounted on top rope block peace by guide rod (17)
In loading board (16), top rope spring (18) is equipped between the top rope block (1) and top rope block mounting plate (16).
3. the protective device according to claim 1 for overhauling elevator, it is characterised in that：Pressure rope cam (1) and
Top rope block (2) is equipped with and speed limiter wire rope (3) matched limiting slot (19).
4. according to any protective device for overhauling elevator of claims 1 to 3, it is characterised in that：The fixed branch
Frame (4) is bolted on the side wall of pit (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810381777.5A CN108341316A (en) | 2018-04-25 | 2018-04-25 | A kind of protective device for overhauling elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810381777.5A CN108341316A (en) | 2018-04-25 | 2018-04-25 | A kind of protective device for overhauling elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108341316A true CN108341316A (en) | 2018-07-31 |
Family
ID=62955866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810381777.5A Withdrawn CN108341316A (en) | 2018-04-25 | 2018-04-25 | A kind of protective device for overhauling elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108341316A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112938722A (en) * | 2021-02-19 | 2021-06-11 | 山东易龙电梯有限公司 | Portal frame elevator overhauls safety pin structure |
-
2018
- 2018-04-25 CN CN201810381777.5A patent/CN108341316A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112938722A (en) * | 2021-02-19 | 2021-06-11 | 山东易龙电梯有限公司 | Portal frame elevator overhauls safety pin structure |
| CN112938722B (en) * | 2021-02-19 | 2022-09-20 | 山东易龙电梯有限公司 | Portal frame elevator overhauls safety pin structure |
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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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180731 |