CN104495563A - Flexible safety gear linkage mechanism for home elevator - Google Patents
Flexible safety gear linkage mechanism for home elevator Download PDFInfo
- Publication number
- CN104495563A CN104495563A CN201410846401.9A CN201410846401A CN104495563A CN 104495563 A CN104495563 A CN 104495563A CN 201410846401 A CN201410846401 A CN 201410846401A CN 104495563 A CN104495563 A CN 104495563A
- Authority
- CN
- China
- Prior art keywords
- safety tongs
- lifting rod
- driving shaft
- safety
- universal driving
- 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.)
- Pending
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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
- B66B5/02—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
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a flexible safety gear linkage mechanism for a home elevator. Left and right safety gears with gear bodies and lifting rods are arranged on left and right vertical beams of a cage respectively, and are linked through a linkage rod, wherein the lifting rods are linked with cranks to form a universal linkage mechanism through a linkage shaft; the linkage rod is provided with left and right pull rods; one end of the left pull rod is connected with the left crank linked with the lifting rod of the left safety gear, and the other end of the left pull rod is connected with a turnbuckle; one end of the right pull rod is connected with the right crank linked with the lifting rod of the right safety gear, and the other end of the right pull rod is connected with the left pull rod through the turnbuckle. The linkage mechanism has the advantages that the linkage mechanism is flexible and reliable in structure and higher in safety; the linkage mechanism is simple in design and high in practicability; the linkage mechanism is convenient to operate, and gaps between the safety gears and guide rails are relatively easy to regulate; the linkage mechanism is smaller in size and applicable to the home elevator; the linkage mechanism can be regulated leftwards and rightwards, and is difficult to lock.
Description
Technical field
Household ladder of the present invention flexible formula safety tongs link gear, relates on a kind of household ladder safety tongs and can lift flexibly, and guide rail more easily adjusts with the spacing of safety tongs brake shoes and is not easy the link gear that is stuck.
Background technology
Elevator safety clamp device is under the manipulation of velocity limiter, when elevator speed exceedes the limited speed of elevator governor setting, or when suspension strop fracture occurs and be lax, by urgent for car stop and a kind of safety device be clamped on guide rail.It provides actv. protective effect to the safe operation of elevator, is generally arranged on car frame or counterweight frame.Safety tongs is divided into one-way safety to clamp and bidirectional safety tongs, but due to manufacturing process complexity, bidirectional safety tongs is popularized not yet at home.
Safety tongs device is made up of safety tongs steering unit and safety block two parts.Namely, during safety tongs mechanism action, first touch electrical apparatus mechanism and make elevator safety loop disconnect stop elevator, if drg cannot stop time safety tongs will action further, make elevator stopping on guide rail.
Dynamic apparatus for lift can be divided into according to the difference of its brake assemblies version carves block-type, eccentric wheel-type and roller-type three kinds.
Application number: 201110383614.9 disclose a kind of linkage structure for safety gears, it comprises two safety tongss, it is characterized in that: connected by connecting rod between the trigger mechanism of safety tongs described in two.This invention realizes the interlock of two safety tongss by connecting rod, they can be had an effect when braking simultaneously, thus share braking force, while protection elevator safety, also avoids safety tongs itself to be destroyed.
Application number: 201110342407.9 disclose one for building hoist Bidirectional anti-falling safety device, this device is made up of bidirectional safety tongs, bidirectional speed limiter, descending trip mechanism, descending link gear, up link gear and up trip mechanism, described bidirectional speed limiter is connected with descending trip mechanism and up trip mechanism by triggering steel rope, up link gear is connected between bidirectional safety tongs and up trip mechanism, and descending link gear is connected between bidirectional safety tongs and descending trip mechanism.The safety problem of to fall because of cage and to exceed the speed limit and gliding and causing can be solved, cage can be solved again and under no-load condition, to exceed the speed limit after up or misfunctioning of brake counterweight with the potential safety hazard brought time up with identical speed close to free-fall velocity tenesmus cage.
Application number: 201020193129.6 hydraulic car lift with four guide rails and two sets of safety tongs, it comprises car, diversion sheave, velocity limiter, oil cylinder; Described car is connected with first set safety tongs and the second sets of safety tongs respectively; four guide rails are connected with first set safety tongs and the second sets of safety tongs respectively; connected by safety tongs connecting rod between first set safety tongs and the second sets of safety tongs; safety tongs lifting rod is connected with safety tongs connecting rod, and velocity limiter is connected with safety tongs lifting rod; This invention adopts four guide rails and two sets of safety tongs link gear, promotes car center, elevator reasonable stress, easy for installation, operates steadily.
The most safety tongs of current household ladder elevator adopts the free clearance between the degree of tightness adjustment brake shoes of bolt and guide rail, adjustment gets up very to bother, waste man-hour, and free distance can not well control, easily stuck, cause safety tongs action malfunctioning, according to society expanding economy trend, save work-hours, increase work efficiency, liberating and developing productive force exactly, just can create more depreciation value for company.
In order to solve the problem, be necessary develop a kind of can flexibly formula adjustment safety tongs link gear.
Summary of the invention
The object of the invention is to provide a kind of household ladder flexible formula safety tongs link gear, and when the downstream rate of elevator reaches the action limit of velocity limiter, safety tongs can be lifted by fast speed flexibly.
The object of the invention is implemented by the following technical programs: a kind of household ladder flexible formula safety tongs link gear, left and right safety tongs with caliper and lifting rod is arranged in the left and right vertical beam of car respectively, linked by gangbar, described lifting rod is linked by universal driving shaft and crank and forms universal type interlinked mechanism, described gangbar has left and right pull bar, the connection of left lever one end and sinistral safety clamp the left crank that lifting rod links, and the other end connects turnbuckle screw; The connection of right pull bar one end and dextral safety clamp the right crank that lifting rod links, and the other end is connected with left lever by turnbuckle screw.Link at car left and right sides safety tongs, adopt the connection mode of turnbuckle, can free distance between free adjustment brake shoes and guide rail, time longer when the elevator is run, occur that speed limiter wire rope is elongated, the distance of such guide rail and brake shoes can increase, and repair and maintenance personnel only need turn turnbuckle gently by this bindiny mechanism.
On such scheme basis, described universal driving shaft is by being fixed on the adapter plate location in vertical beam, the lifting rod of left and right safety tongs is tightly locked on left and right universal driving shaft respectively, the sheathed crank in one end of left and right universal driving shaft, wherein, the other end of Left-wing Federation's moving axis fixes taping block, and electric switch is equipped with in the below of taping block.
On such scheme basis, the sheathed crank in left side linkage axle one end, the other end is connected to a speed limiter wire rope pull handle, and steel rope pull handle is equipped with pull handle spring.Spring elongation can be driven after velocity limiter action.After velocity limiter action resets, spring also reduces thereupon, returns to the safety gap before action, need not again manually adjust again.
On such scheme basis, described safety tongs adopts column type brake shoes to be placed in the oblique chute of contract type.Contract type plays directional tagging, adopts the principle of automobile Universal-head, is not easy to be stuck.When elevator downstream rate reaches 115% of command speed, after velocity limiter action, contract type chute ensure that the quick of brake shoes, and realization is safe, flexible, fast speed is checked elevator and run.When after elevator safety gear action, the lifting rod of safety tongs also starts action thereupon, drive universal driving shaft rotates, Left-wing Federation's moving axis installs safe taping block, when after universal driving shaft action, safe taping block can be driven to move downward, touch the electric switch being installed in taping block bottom, at this moment the safety return circuit of whole elevator all disconnects, and elevator can not run.
On such scheme basis, described universal type interlinked mechanism is, when elevator speed is too fast, velocity limiter steel cable rope pulls steel cable rope lifting rod via steel rope pull handle, drive universal driving shaft, universal driving shaft has driven lifting rod and pull bar again, makes safety tongs stop elevator, described lifting rod, with universal driving shaft left-right rotation, forms the universal type interlinked mechanism of comprehensive 360 degree
Preceence of the present invention is a little:
one, shouldlink gear flexible structure is reliable, and safety is higher.
Two, this link gear design organization is simple, practical.
Three, this link gear is easy to operate, than being easier to adjust safety tongs and to the gap between guide rail.
Four, this link gear small volume, is applicable to home lift.
Five, can transfer left and right, be not easy to be stuck.
Accompanying drawing explanation
Fig. 1 is household ladder flexible formula safety tongs link gear mounting structure schematic diagram;
The right safety tongs schematic diagram of Fig. 2;
The left safety tongs schematic diagram of Fig. 3;
number in the figure explanation
1-steel rope pull handle;
11---speed limiter wire rope; 12---pull handle spring;
2-right safety tongs; 21---right safety tongs lifting rod;
3---gangbar;
31---left lever; 32---right pull bar;
41---Left-wing Federation's moving axis; 42---right universal driving shaft;
51---left crank; 52---right crank;
6---left vertical beam;
61---left vertical beam anterior planting; 62---adapter plate on rear side of left vertical beam;
7---right vertical beam;
71---right vertical beam anterior planting;
8---taping block; 9---electric switch;
10---turnbuckle.
Detailed description of the invention
Formula safety tongs link gear mounting structure schematic diagram as flexible in Fig. 1 household ladder; Shown in the right safety tongs schematic diagram of Fig. 2:
A kind of household ladder flexible formula safety tongs link gear, with caliper and lifting rod left and right safety tongs 2, be arranged in the left and right vertical beam 6,7 of car respectively, linked by gangbar, described lifting rod to be linked with crank by universal driving shaft and goes into universal type interlinked mechanism, described gangbar 3 has left and right pull bar 31,32, the connection of left lever 31 one end and sinistral safety clamp the left crank 51 that lifting rod links, and the other end connects turnbuckle screw 10; Right pull bar 32 one end connects the right crank 52 linked with right safety tongs lifting rod 21, and the other end is connected with left lever 31 by turnbuckle screw 10.
Described universal driving shaft is by being fixed on the adapter plate location in vertical beam, the lifting rod of left and right safety tongs is tightly locked on left and right universal driving shaft 41,42 respectively, the sheathed crank in one end of left and right universal driving shaft 41,42, wherein, as shown in Figure 3, the other end of Left-wing Federation's moving axis 41 fixes taping block 8, and normally closed electric switch 9 is equipped with in the below of taping block 8.When Left-wing Federation's moving axis 41 rotates clockwise, drive taping block 8 other end lower piezoelectric air cock 9, cut off elevator electrical loop, elevator is out of service.When after velocity limiter action, safety tongs is action thereupon also, at this moment, safety tongs lifting rod can drive taping block 8 to move downward the electric switch 9 of touching elevator, electric switch is connected with the safety return circuit of elevator, at this moment all function uniies meeting power-off of elevator, and elevator is by out of service.
Left safety tongs lifting rod one end is connected on Left-wing Federation's moving axis 41, and the other end is connected on left safety tongs, and left safety tongs is located in left vertical beam 6.When Left-wing Federation's moving axis 41 rotates clockwise, drive the left safety tongs of left safety tongs lifting rod pull-up, left safety tongs braking.
On such scheme basis, the sheathed right crank 52 in right universal driving shaft 42 one end, the other end is connected to a speed limiter wire rope pull handle 1, and steel rope pull handle 1 is equipped with pull handle spring 12.
Steel rope pull handle 1 one end connects speed limiter wire rope 11, the other end connects right universal driving shaft 42, pull handle spring 12 one end is fixed in the middle part of steel rope pull handle 1, one end is fixed on right vertical beam 7 anterior planting 71, and right universal driving shaft 42 is spacing by adapter plate on rear side of right vertical beam 7 anterior planting 71 and right vertical beam.During velocity limiter action, speed limiter wire rope 11 pull-up steel rope pull handle 1 one end, lifts in the middle part of steel rope pull handle 1 and pull handle spring 12 is stretched, and steel rope pull handle 1 other end drives right universal driving shaft 42 to rotate counterclockwise.After this structure ensure that velocity limiter reset, safety tongs can reset flexibly.
Right safety tongs lifting rod 21 one end is connected on right universal driving shaft 42, and the other end is connected on right safety tongs 2, and right safety tongs 2 is located in right vertical beam 7.When right universal driving shaft 42 rotates counterclockwise, drive the right safety tongs 2 of right safety tongs lifting rod 21 pull-up, right safety tongs 2 is braked.
Right crank 52 one end is connected on right universal driving shaft 42, the other end is connected in right gangbar 31, left and right gangbar 31,32 is connected by turnbuckle, Left-wing Federation's lever 31 other end is connected on left crank 51, left crank 51 other end is connected on Left-wing Federation's moving axis 41, and Left-wing Federation's moving axis 41 is spacing by adapter plate 62 on rear side of left vertical beam anterior planting 61 and right vertical beam.When right universal driving shaft 42 rotates counterclockwise, right crank 52 pulls left crank 51 by left and right pull bar 31,32, drives Left-wing Federation's moving axis 41 to rotate clockwise.
When velocity limiter resets, pull handle spring 12 resets and drives steel rope pull handle 1 to drop to original position, and left and right safety tongs is by therein spring reset.
After elevator long-time running, speed limiter wire rope 11 may elongate in deformation, and steel rope pull handle 11 one end is declined, and the safety gap of braking increases, and makes braking time lag time rating.Service personnel only needs, by adjustment turnbuckle 10, to shorten the connecting length between left and right gangbar 31,32, make steel rope pull handle 11 return to original position.
Safety tongs of the present invention adopts column type brake shoes to be placed in the oblique chute of contract type.
As shown in Figure 2; on the basis of technique scheme; described universal type interlinked mechanism is; when elevator speed is too fast; velocity limiter steel cable rope pulls steel cable rope lifting rod via steel rope pull handle 1; drive right universal driving shaft 42; right universal driving shaft 42 has driven right safety tongs lifting rod 21 and gangbar 3 again; safety tongs is made to stop elevator; the safety of protection client, universal type emphasis is exactly that safety tongs lifting rod can rotate up and down, and gangbar 3 can left-right rotation; local in the connection of Fig. 2, form the universal type interlinked mechanism of comprehensive 360 degree.
Claims (5)
1. a household ladder flexible formula safety tongs link gear, left and right safety tongs with caliper and lifting rod is arranged in the left and right vertical beam of car respectively, linked by gangbar, it is characterized in that: described lifting rod is linked by universal driving shaft and crank and forms universal type interlinked mechanism, described gangbar has left and right pull bar, the connection of left lever one end and sinistral safety clamp the left crank that lifting rod links, and the other end connects turnbuckle screw; The connection of right pull bar one end and dextral safety clamp the right crank that lifting rod links, and the other end is connected with left lever by turnbuckle screw.
2. household ladder according to claim 1 flexible formula safety tongs link gear, it is characterized in that: described universal driving shaft is by being fixed on the adapter plate location in vertical beam, the lifting rod of left and right safety tongs is tightly locked on left and right universal driving shaft respectively, the sheathed crank in one end of left and right universal driving shaft, wherein, the other end of Left-wing Federation's moving axis fixes taping block, and electric switch is equipped with in the below of taping block.
3. household ladder according to claim 2 flexible formula safety tongs link gear, is characterized in that: the sheathed crank in left side linkage axle one end, and the other end is connected to a speed limiter wire rope pull handle, and steel rope pull handle is equipped with pull handle spring.
4. household ladder according to claim 1 flexible formula safety tongs link gear, is characterized in that: described safety tongs adopts column type brake shoes to be placed in the oblique chute of contract type.
5. household ladder according to claim 1 flexible formula safety tongs link gear, it is characterized in that: described universal type interlinked mechanism is, when elevator speed is too fast, velocity limiter steel cable rope pulls steel cable rope lifting rod via steel rope pull handle, drive universal driving shaft, universal driving shaft has driven lifting rod and pull bar again, makes safety tongs stop elevator, described lifting rod, with universal driving shaft left-right rotation, forms the universal type interlinked mechanism of comprehensive 360 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846401.9A CN104495563A (en) | 2014-12-31 | 2014-12-31 | Flexible safety gear linkage mechanism for home elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846401.9A CN104495563A (en) | 2014-12-31 | 2014-12-31 | Flexible safety gear linkage mechanism for home elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104495563A true CN104495563A (en) | 2015-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410846401.9A Pending CN104495563A (en) | 2014-12-31 | 2014-12-31 | Flexible safety gear linkage mechanism for home elevator |
Country Status (1)
| Country | Link |
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| CN (1) | CN104495563A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106256746A (en) * | 2015-06-16 | 2016-12-28 | 通力股份公司 | Control apparatus and method |
| CN106927331A (en) * | 2017-04-13 | 2017-07-07 | 台州市中奥特种设备检测技术服务有限公司 | A kind of speed limit anti-drop device for lift transformation |
| CN108249250A (en) * | 2016-12-29 | 2018-07-06 | 通力股份公司 | Avoid the method that undesirable safety equipment is threaded off in the safety stop system of elevator |
| CN111824883A (en) * | 2019-04-15 | 2020-10-27 | 杭州沪宁电梯部件股份有限公司 | Diagnosis maintenance system based on elevator car |
| CN115092789A (en) * | 2022-08-25 | 2022-09-23 | 河南起升智能科技有限公司 | Accidental movement prevention device, accidental movement prevention assembly and elevator |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106256746A (en) * | 2015-06-16 | 2016-12-28 | 通力股份公司 | Control apparatus and method |
| US10399818B2 (en) | 2015-06-16 | 2019-09-03 | Kone Corporation | Arrangement and a method for testing elevator safety gear |
| CN106256746B (en) * | 2015-06-16 | 2019-12-27 | 通力股份公司 | Control device and method |
| CN108249250A (en) * | 2016-12-29 | 2018-07-06 | 通力股份公司 | Avoid the method that undesirable safety equipment is threaded off in the safety stop system of elevator |
| CN106927331A (en) * | 2017-04-13 | 2017-07-07 | 台州市中奥特种设备检测技术服务有限公司 | A kind of speed limit anti-drop device for lift transformation |
| CN111824883A (en) * | 2019-04-15 | 2020-10-27 | 杭州沪宁电梯部件股份有限公司 | Diagnosis maintenance system based on elevator car |
| CN115092789A (en) * | 2022-08-25 | 2022-09-23 | 河南起升智能科技有限公司 | Accidental movement prevention device, accidental movement prevention assembly and elevator |
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Application publication date: 20150408 |
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