CN207293862U - Novel progressive safety tongs shift mechanism - Google Patents
Novel progressive safety tongs shift mechanism Download PDFInfo
- Publication number
- CN207293862U CN207293862U CN201721051316.9U CN201721051316U CN207293862U CN 207293862 U CN207293862 U CN 207293862U CN 201721051316 U CN201721051316 U CN 201721051316U CN 207293862 U CN207293862 U CN 207293862U
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- China
- Prior art keywords
- rod
- connecting rod
- safety tongs
- connecting portion
- partition plate
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Abstract
It the utility model is related to a kind of elevator operation overspeed protection safety device, especially a kind of novel progressive safety tongs shift mechanism.First connecting rod connecting portion is connected with the mechanism first level rotation axis, second connecting rod connecting portion is connected with the second horizontal rotating shaft, first connecting rod connecting portion is set vertically downward, and second connecting rod connecting portion is set vertically upward；An angularly disposed connecting rod is connected between first connecting rod connecting portion and second connecting rod connecting portion, underbeam side wall is equipped with a partition plate, and connecting rod in partition plate by passing through, and a resetting spring is installed in socket respectively outside the connecting rod of partition plate both sides；A switch triggering wheel is connected with first rotation axis, power switch is installed on by switch triggering wheel, and the switch triggering wheel is equipped with a pit for accommodating power switch trigger head.The utility model improves the precision and stability of component movement, while links with power switch, ensures the promptness and validity of safety tongs action.
Description
Technical field
It the utility model is related to a kind of elevator operation overspeed protection safety device, especially a kind of novel progressive safety tongs
Shift mechanism.
Background technology
Elevator safety gear is a kind of triggered when elevator runs and exceeds the speed limit by wire rope pulling and gripping elevator runs guide rail
Safety guard, to prevent elevator overspeed run caused by security incident occur, such as feelings such as fall, rush to summit of elevator
Condition, in order to timely prevent the above situation, is mounted on safety tongs, the just situation in elevator overspeed operation on existing elevator
Under, the guide rail of the lasting gripping elevator operation of safety tongs, makes elevator out of service, achievees the purpose that to avoid accident.
The both sides that existing safety tongs is typically mounted at lift car underbeam correspond to the position that elevator runs guide rail, are working
When, it is necessary to the lifting power up or down of safety steel cable is delivered on safety tongs by shift mechanism, in pulling machine
Generally there are two key points during the work of structure：First, need to simultaneously close off the electricity that elevator is run while the work of shift mechanism
Source, cuts off elevator traction power, makes elevator out of service, and switch power supply switch often triggers respectively with safety tongs in the prior art,
Synchronism is affected, and safety tongs clamping, traction motor can be caused still in the situation of work, easily to burn motor or break electricity
Terraced hoist ropes；2nd, shift mechanism needs to lift at the same time positioned at underbeam both sides in side after the lifting of safety steel cable
Safety tongs is, it is necessary to transmit lifting power, and existing stretching structure generally has two ways, and a kind of is carrying by safety steel cable
Draw, a transmission shaft is produced rotation, connected in both ends of the drive shaft by the driver for being changed into vertical movement of transmission shaft
Structure connects safety tongs, and linear motion is converted to circular motion and is reconverted into linear motion by this mode, transmission process is complicated,
Transmission parts are more, and the fit tolerance between component easily influences to reduce lifting power to the transformation efficiency of brake force, influences safety
Property；Another way is that the lifting component of both sides is connected by connecting rod, and both sides safety tongs is controlled by the swing of drive link
Lifting, such transmission more directly efficiently, but the amplitude of oscillation of connecting rod and resets bad control in action, also easy shadow
The effective travel of safety tongs is rung, influences to clamp, while be not easy to implement with the triggering of power switch.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provide one kind can either reach efficiently accurate link transmission,
The novel progressive safety tongs shift mechanism synchronously triggered of power switch can be realized again.
The mechanism is installed on lift car underbeam, including the horizontal first level for being arranged on lift car underbeam both ends turns
Moving axis and the second horizontal rotating shaft, the first safety tongs lifting of the lifting rod of lifting safety tongs is connected with first level rotation axis
Arm, the second safety tongs lifting arm of the lifting rod of lifting safety tongs is connected with the second horizontal rotating shaft；First level rotation axis
On be connected with wire rope pulling arm for connecting uplink and downlink steel wire tensioning end；Is connected with first level rotation axis
One link joint feature, is connected with second connecting rod connecting portion on the second horizontal rotating shaft, and first connecting rod connecting portion is set vertically downward,
Second connecting rod connecting portion is set vertically upward；It is angularly disposed that one is connected between first connecting rod connecting portion and second connecting rod connecting portion
Connecting rod, underbeam side wall is equipped with a partition plate, and connecting rod in partition plate by passing through, socket installation one respectively outside the connecting rod of partition plate both sides
Resetting spring；A switch triggering wheel is connected with first rotation axis, power switch is installed on by switch triggering wheel, the switch
Trigger wheel is equipped with a pit for accommodating power switch trigger head.
Preferably, the connecting rod includes first body of rod being connected with first connecting rod connecting portion and second connecting rod connecting portion
Connection second body of rod and the middle body of rod through partition plate between first body of rod and second body of rod, first body of rod and
Connected and fixed by the first branch sleeve between the middle body of rod, connected between second body of rod and the middle body of rod by the second branch sleeve
Connect fixation.
Preferably, first body of rod, the middle body of rod and second body of rod are respectively by the external screw thread positioned at rod end with being arranged on
The screw-internal thread fit of end between first branch sleeve and the second branch sleeve.
Preferably, the intermediate bar body is located at partition plate both sides and is respectively equipped with first baffle and second baffle, resetting spring
It is respectively arranged between first baffle and partition plate and between second baffle and partition plate.
Preferably, it is respectively provided with mounting lifting on first safety tongs lifting arm and the second safety tongs lifting arm
The waist round hole of bar.
The novel progressive safety tongs shift mechanism of the utility model realizes both sides pull lift action by link mechanism
It is synchronous, improve transmission efficiency, while the support stablized by two resetting springs to the lever action of connecting rod and standard
True is spacing, improves the precision and stability of component movement, while links with power switch, when triggering safety tongs, in time
Closing power supply, ensure safety tongs action promptness and validity.
Brief description of the drawings
Fig. 1 is the utility model embodiment and the positive structure schematic after safe clipper joint；
Fig. 2 is the utility model embodiment and the side structure schematic diagram after safe clipper joint；
Fig. 3 is the overlooking the structure diagram of the utility model embodiment.
Embodiment
As shown in Figure 1-Figure 3, the novel progressive safety tongs shift mechanism in the embodiment of the utility model is installed on electricity
On terraced car frame plank 1, including the horizontal first level rotation axis 2 and second for being arranged on 1 both ends of lift car underbeam horizontally rotates
Axis 3, the first safety tongs lifting arm 4 of the lifting rod of lifting safety tongs is connected with first level rotation axis 1, second horizontally rotates
The second safety tongs lifting arm 5 of the lifting rod of lifting safety tongs is connected with axis 3；It is connected with and is used in first level rotation axis 2
Connect the wire rope pulling arm 6 at uplink and downlink steel wire tensioning end；First connecting rod connection is connected with first level rotation axis 2
Portion 7, is connected with second connecting rod connecting portion 8 on the second horizontal rotating shaft 3, and first connecting rod connecting portion 7 is set vertically downward, and second connects
Bar connecting portion 8 is set vertically upward；It is angularly disposed that one is connected between first connecting rod connecting portion 7 and second connecting rod connecting portion 8
Connecting rod 9,1 side wall of underbeam are equipped with a partition plate 10, and connecting rod 9 is covered respectively by being passed through in partition plate 10 outside the connecting rod of 10 both sides of partition plate
Connect one resetting spring 11 of installation；A switch triggering wheel 12 is connected with first rotation axis 2, power switch 13 is installed on switch triggering
By wheel 12, the switch triggering wheel 12 is equipped with a pit for accommodating power switch trigger head 14.
Since connecting rod needs according to different underbeam specifications to use different length, for the ease of the convenience of site operation
And controllability, in the present embodiment, the connecting rod 9 includes first body of rod 91 and second be connected with first connecting rod connecting portion 7
Second body of rod 92 and passing through in partition plate between first body of rod 91 and second body of rod 92 that link joint feature 8 connects
Between the body of rod 93, connected and fixed by the first branch sleeve 15 between first body of rod 91 and the middle body of rod 93, second body of rod 92 is with
Between pass through the connection of the second branch sleeve 16 between the body of rod 91 and fix.
In first body of rod, the middle body of rod, second body of rod and the connection structure of the first branch sleeve and the second branch sleeve,
In the present embodiment, first body of rod 91, middle 93 and second body of rod 92 of the body of rod are respectively by the external screw thread positioned at rod end with setting
The screw-internal thread fit of end between the first branch sleeve 15 and the second branch sleeve 16.When needing adjustment length, turn
One branch sleeve 15 and the second branch sleeve 16 are the relative distance for the body of rod for adjusting each sleeve both ends, so as to adjust length
Degree.
On the mounting structure of resetting spring, in the present embodiment, the middle body of rod 93 is located at 10 both sides of partition plate difference
Equipped with first baffle 17 and second baffle 18, resetting spring 11 is respectively arranged between first baffle 17 and partition plate 10 and second gear
Between plate 18 and partition plate 10.
At the cooperation of lifting arm and lifting rod, in the present embodiment, first safety tongs lifting arm, 4 and second safety
The waist round hole 19 of mounting lifting rod is respectively provided with pincers lifting arm 5.
The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention,
Every equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is directly or indirectly transported
Used in other related technical areas, it is equally included in the patent within the scope of the utility model.
Claims (5)
1. novel progressive safety tongs shift mechanism, is installed on lift car underbeam, it is characterised in that：Electricity is arranged on including level
The first level rotation axis and the second horizontal rotating shaft at terraced car frame plank both ends, lifting peace is connected with first level rotation axis
First safety tongs of the lifting rod clamped entirely lifts arm, and the second of the lifting rod of lifting safety tongs is connected with the second horizontal rotating shaft
Safety tongs lifts arm；The wire rope pulling for connecting uplink and downlink steel wire tensioning end is connected with first level rotation axis
Arm；First connecting rod connecting portion is connected with first level rotation axis, second connecting rod connecting portion is connected with the second horizontal rotating shaft,
First connecting rod connecting portion is set vertically downward, and second connecting rod connecting portion is set vertically upward；First connecting rod connecting portion and second connects
An angularly disposed connecting rod is connected between bar connecting portion, underbeam side wall is equipped with a partition plate, and connecting rod in partition plate by passing through, partition plate
A resetting spring is installed in socket respectively outside the connecting rod of both sides；A switch triggering wheel, power switch are connected with first rotation axis
It is installed on by switch triggering wheel, the switch triggering wheel is equipped with a pit for accommodating power switch trigger head.
2. novel progressive safety tongs shift mechanism as claimed in claim 1, it is characterised in that：The connecting rod includes and the
First body of rod of one link joint feature connection, second body of rod that is connected with second connecting rod connecting portion and positioned at first body of rod and
The middle body of rod through partition plate between second body of rod, is connected admittedly between first body of rod and the middle body of rod by the first branch sleeve
It is fixed, connected and fixed by the second branch sleeve between second body of rod and the middle body of rod.
3. novel progressive safety tongs shift mechanism as claimed in claim 2, it is characterised in that：First body of rod, the middle body of rod
And second the body of rod respectively by positioned at the external screw thread of rod end and between the first branch sleeve and the second branch sleeve
The screw-internal thread fit of end.
4. the novel progressive safety tongs shift mechanism as any one of Claims 2 or 3, it is characterised in that：Described
Intermediate bar body is located at partition plate both sides and is respectively equipped with first baffle and second baffle, and resetting spring is respectively arranged on first baffle and partition plate
Between and second baffle and partition plate between.
5. the novel progressive safety tongs shift mechanism as any one of claim 1-3, it is characterised in that：Described
One safety tongs lifts the waist round hole that mounting lifting rod is respectively provided with arm and the second safety tongs lifting arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721051316.9U CN207293862U (en) | 2017-08-21 | 2017-08-21 | Novel progressive safety tongs shift mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721051316.9U CN207293862U (en) | 2017-08-21 | 2017-08-21 | Novel progressive safety tongs shift mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207293862U true CN207293862U (en) | 2018-05-01 |
Family
ID=62443508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721051316.9U Expired - Fee Related CN207293862U (en) | 2017-08-21 | 2017-08-21 | Novel progressive safety tongs shift mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207293862U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445014A (en) * | 2017-08-21 | 2017-12-08 | 佛山市欧汇电梯配件有限公司 | Novel progressive safety tongs shift mechanism |
-
2017
- 2017-08-21 CN CN201721051316.9U patent/CN207293862U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445014A (en) * | 2017-08-21 | 2017-12-08 | 佛山市欧汇电梯配件有限公司 | Novel progressive safety tongs shift mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180501 Termination date: 20210821 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |