CN205873577U - Elevator safety tongs - Google Patents
Elevator safety tongs Download PDFInfo
- Publication number
- CN205873577U CN205873577U CN201620653521.1U CN201620653521U CN205873577U CN 205873577 U CN205873577 U CN 205873577U CN 201620653521 U CN201620653521 U CN 201620653521U CN 205873577 U CN205873577 U CN 205873577U
- Authority
- CN
- China
- Prior art keywords
- voussoir
- braked wheel
- elevator
- guide rail
- waist hole
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses an elevator safety tongs, including the pincers body, set up the passageway that supplies elevator guide rail to pass through on the pincers body, the sectional area of passageway is under the narrow width's isosceles trapezoid, and both sides in the passageway are equipped with voussoir and braked wheel respectively, voussoir and the corresponding inclined plane of braked wheel homoenergetic reciprocate, and the speed limit rope is connected to the upper end of voussoir, and braked wheel one end still is connected with the dive flap, and the speed limit rope is connected to the middle -end of dive flap, and the end of dive flap is equipped with the spliced pole, still sets up the waist hole of holding spliced pole on the pincers body, and the spliced pole can reciprocate in that the waist is downthehole. The utility model discloses the safety tongs is become with right side system dynamic wheel group by the left side voussoir, presss from both sides tight elevator guide rail during the braking respectively from the left and right sides, makes the elevator guide rail atress even, avoids the guide rail to take place to be out of shape, and spliced pole along waist hole rebound increases the pressure between braked wheel and the elevator guide rail during braking, improves brake force, has limited the scope of reciprocating of spliced pole simultaneously for the dive flap can not break away from the safety tongs body during braking.
Description
Technical field
This utility model relates to a kind of elevator safety gear, belongs to elevator car safety technical field.
Background technology
The safety of elevator is an up the important indicator of elevator performance.Safety tongs is that one makes car or counterweight stop motion
Mechanical safety member, when unexpected and overspeed occurs in elevator, limiter of speed triggers safety tongs running.Elevator in early days is instantaneous
Formula safety tongs, the safety tongs as disclosed in China Patent No. ZL97219405.3, when actual safety tongs action, twin roller group
Can up move with voussoir, need to be additionally arranged at the bottom one block of steel plate the thickest at lift car, to prevent unilateral voussoir from moving upward
Crossing limit and depart from caliper, otherwise safety tongs absorption energy will be substantially reduced, and affect the safe operation of elevator.Although reality is to install additional
Steel plate disclosure satisfy that actually used demand, but which results in being significantly increased of elevator manufacturing cost.Also make additionally, add cartridge plate
The structure of elevator becomes complicated, weight increase.
In sum, in technical field of elevator manufacturing, all expect that one both can provide higher brake force, can reduce again
The instantaneous safety of elevator manufacturing cost.
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art, it is provided that a kind of elevator safety gear, solves
The technical problem that in prior art, safety tongs brake force is little.
For solving above-mentioned technical problem, this utility model provides a kind of elevator safety gear, including caliper, caliper is offered
Having the passage passed through for cage guide, it is characterized in that, the sectional area of described passage is up-narrow and down-wide isosceles trapezoid, in passage
It is respectively provided on two sides with voussoir and braked wheel, described voussoir and braked wheel all to move up and down along the most corresponding inclined-plane, voussoir
Upper end connect speed limit rope, braked wheel one end is also associated with keep plate, and the middle-end of keep plate connects speed limit rope, the end of keep plate
Being provided with connection post, caliper is further opened with the accommodating waist hole connecting post, connecting post can move up and down in waist hole.
Further, the axis in waist hole is parallel with the hypotenuse of same wing passage.
Further, the gradient of the axis in waist hole is more than the gradient of the hypotenuse with wing passage.
Further, voussoir is just provided with ripple glaze to the surface of cage guide.
Further, it is additionally provided with row of rollers between voussoir with corresponding passage slope.
Further, the outer surface of braked wheel is provided with waveform annular knurl.
Compared with prior art, this utility model is reached to provide the benefit that: this utility model safety tongs is by left side wedge
Block and right side brake wheel composition, respectively from the left and right sides gripping elevator guide rails during braking, make cage guide uniform force, it is to avoid lead
Rail deforms, and connects post and moves up along waist hole, increase the pressure between braked wheel and cage guide, improve braking during braking
Power, limit connection post moves up and down scope simultaneously so that during braking, keep plate is without departing from safety tongs body.This practicality is new
Type has that brake force is big, the advantage of simple in construction, and also simplify elevator structure, reduces elevator load bearing and elevator is manufactured into
This.
Accompanying drawing explanation
Fig. 1 is the floor map of this utility model safety tongs.
Reference: 1, caliper；2, braked wheel；3, keep plate；3-1, connection post；3-1, waist hole；4, voussoir；5, speed limit
Rope.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.Following example are only used for this is clearly described
The technical scheme of utility model, and protection domain of the present utility model can not be limited with this.
As it is shown in figure 1, a kind of elevator safety gear that this utility model provides, including caliper 1, caliper 1 offers power supply
The passage that ladder guide rail passes through, is characterized in that, the sectional area of described passage is up-narrow and down-wide isosceles trapezoid, and the both sides in passage are divided
Not being provided with voussoir 4 and braked wheel 2, described voussoir 4 and braked wheel 2 all can move up and down along the most corresponding inclined-plane, voussoir 4
Upper end connects speed limit rope 5, and braked wheel 2 one end is also associated with keep plate 3, and the middle-end of keep plate 3 connects speed limit rope 5, keep plate 3
End is provided with connection post 3-1, and caliper 1 is further opened with the accommodating waist hole 3-2 connecting post 3-1, and connecting post 3-1 can be at waist hole 3-2
Inside move up and down.
The duty of this utility model safety tongs is divided into running status and on-position two kinds.When safety tongs is in operation
During the normal operating condition of the i.e. elevator of state, limiter of speed is failure to actuate, and speed limit rope 5 does not produce upwards pulling force, and right side brake plate 3 is positioned at
Lower section, connects post 3-1 and is positioned at the lower end of waist hole 3-2, and braked wheel 2 is positioned at the position that passage is relatively low near oblique waist side, left side
Voussoir 4 is positioned at the position that passage is relatively low near oblique waist side, and in making isosceles trapezoid passage, enough spaces are left to elevator in centre
Guide rail pass through, and leave gap between braked wheel 2 and voussoir 4 and cage guide,.Allow when the speed of elevator exceedes limiter of speed
Maximal rate time, limiter of speed sends action, and clamping speed limit rope 5 produces pulling force upwards, and speed limit rope 5 drives keep plate 3 and wedge
Block 4 is rapidly moving upward so that braked wheel 2 reduces the gap with cage guide until contacting with cage guide and sending out with voussoir 4
Raw rubbing action, by lift car stop on guide rail, to protect the safety of elevator；Safety tongs is by left side voussoir 4 and right side
Braked wheel 2 forms, and respectively from the left and right sides gripping elevator guide rails during braking, makes cage guide uniform force, it is to avoid guide rail occurs
Deformation；And during moving on keep plate, connect post 3-1 and move up along waist hole 3-2, during can making to move on braked wheel 2
Also by the thrust in passage, increase the pressure between braked wheel 2 and cage guide, and then increase braked wheel 2 is led with elevator
Frictional force between rail, improves brake force, and limit connection post 3-1 moves up and down scope simultaneously so that keep plate 3 during braking
Without departing from safety tongs body.
As preferred embodiment of the present utility model, the axis of waist hole 4-1 is parallel with the hypotenuse of same wing passage.Further
, the gradient of the axis of waist hole 4-1, more than the gradient of the hypotenuse with wing passage, is also subject to during can making to move on braked wheel 2
To the thrust in passage, increase the frictional force between braked wheel 2 and cage guide, improve braking effect further.
Further, voussoir 4 is just provided with ripple glaze to the surface of cage guide.Improve the coefficient of friction of voussoir 4, improve
Braking effect.
Further, being additionally provided with row of rollers between voussoir 4 with corresponding passage slope, safety tongs effect makes car stop
Time, reducing the resistance that voussoir 4 moves along inclined-plane, voussoir 4 is directly passed to by row of rollers with the intermolecular forces of cage guide
Caliper, increases the reliability of braking.
Further, the outer surface of braked wheel 2 is provided with waveform annular knurl, improves the coefficient of friction of braked wheel 2, improves system
Dynamic effect.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model know-why, it is also possible to make some improvement and deformation, these change
Enter and deform and also should be regarded as protection domain of the present utility model.
Claims (6)
1. an elevator safety gear, including caliper, caliper offers the passage passed through for cage guide, it is characterized in that, described
The sectional area of passage is up-narrow and down-wide isosceles trapezoid, is respectively provided on two sides with voussoir and braked wheel in passage, described voussoir and
Braked wheel all can move up and down along the most corresponding inclined-plane, and the upper end of voussoir connects speed limit rope, and braked wheel one end is also associated with
Keep plate, the middle-end of keep plate connects speed limit rope, and the end of keep plate is provided with connection post, and caliper is further opened with accommodating connection post
Waist hole, connect post can move up and down in waist hole.
A kind of elevator safety gear the most according to claim 1, is characterized in that, the axis in waist hole is put down with the hypotenuse with wing passage
OK.
A kind of elevator safety gear the most according to claim 1, is characterized in that, the gradient of the axis in waist hole is led to more than homonymy
The gradient of the hypotenuse in road.
A kind of elevator safety gear the most according to claim 1, is characterized in that, the surface of cage guide is just provided with by voussoir
Ripple glaze.
A kind of elevator safety gear the most according to claim 1, is characterized in that, also set between voussoir with corresponding passage slope
There is row of rollers.
A kind of elevator safety gear the most according to claim 1, is characterized in that, the outer surface of braked wheel is provided with waveform rolling
Flower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620653521.1U CN205873577U (en) | 2016-06-28 | 2016-06-28 | Elevator safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620653521.1U CN205873577U (en) | 2016-06-28 | 2016-06-28 | Elevator safety tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205873577U true CN205873577U (en) | 2017-01-11 |
Family
ID=57694513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620653521.1U Expired - Fee Related CN205873577U (en) | 2016-06-28 | 2016-06-28 | Elevator safety tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205873577U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105905741A (en) * | 2016-06-28 | 2016-08-31 | 爱默生电梯有限公司 | Elevator safety gear |
| CN109437070A (en) * | 2018-12-21 | 2019-03-08 | 核动力运行研究所 | A kind of long-range fall arrest arrestment mechanism |
-
2016
- 2016-06-28 CN CN201620653521.1U patent/CN205873577U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105905741A (en) * | 2016-06-28 | 2016-08-31 | 爱默生电梯有限公司 | Elevator safety gear |
| CN105905741B (en) * | 2016-06-28 | 2017-12-19 | 爱默生电梯有限公司 | A kind of elevator safety gear |
| CN109437070A (en) * | 2018-12-21 | 2019-03-08 | 核动力运行研究所 | A kind of long-range fall arrest arrestment mechanism |
| CN109437070B (en) * | 2018-12-21 | 2024-02-13 | 核动力运行研究所 | Remote anti-falling braking mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20190628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |