CN106836781A - A kind of swing arm anti-fall device - Google Patents
A kind of swing arm anti-fall device Download PDFInfo
- Publication number
- CN106836781A CN106836781A CN201710211229.3A CN201710211229A CN106836781A CN 106836781 A CN106836781 A CN 106836781A CN 201710211229 A CN201710211229 A CN 201710211229A CN 106836781 A CN106836781 A CN 106836781A
- Authority
- CN
- China
- Prior art keywords
- swing arm
- arm
- rotating shaft
- fall
- block
- 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.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/001—Safety or protective measures against falling down relating to scaffoldings
Abstract
The present invention relates to prevent drop device field, a kind of swing arm anti-fall device, the swing arm anti-fall device includes base, it is arranged on the first rotating shaft of base, may be rotatably mounted at the first supporting swing arm in first rotating shaft, it is arranged on the second rotating shaft in the first supporting swing arm, may be rotatably mounted at the second support swing arm in the second rotating shaft, it is arranged on the first supporting swing arm lower section and rotates the block for rotating down extreme position for limiting, the first rotating shaft and the second shaft parallel, the plane of rotation of the first supporting swing arm and the plane of rotation of the second support swing arm are in same vertical plane；The second support swing arm has trigger arm, anti-fall block and the weight arm for being located at and extending in the plane of rotation of the second support swing arm, and the trigger arm and weight arm are located at the relative both sides of the second rotating shaft respectively.The present apparatus can automatically avoid movable stand in movable stand process of rising or falling, and return to home position according to the gravity of itself, and movable stand can play anti-fall effect when tenesmus.
Description
Technical field
The present invention relates to falling proof device field, particularly a kind of device for preventing lifting structure from falling suddenly.
Background technology
Since the nineties, China's architectural structure system has and develops on a large scale very much, skyscraper, high-rise building and large-scale public
Building is a large amount of to build, while in many areas, building safety accident also frequently occurs, and also creates the dead group's wound of group, and institute
Have in building safety death by accident, scaffold falling from high altitude is to have accounted for the overwhelming majority in construction industry accident, and these
Directly it is associated with the scaffold anti-fall device mechanism in construction.At present, the attached lifting scaffold used by building trade
, because complex structure increased upkeep cost and increased equipment failure rate, there is safety in the anti-fall device of equipment and lift
Hidden danger.
The content of the invention
To solve the above problems, the present invention provides a kind of swing arm anti-fall device, can improve the safety of lifting structure construction
Property.
It is to realize above-mentioned purpose, the technical solution adopted by the present invention is：
A kind of swing arm anti-fall device, the swing arm anti-fall device include base, be arranged on base first rotating shaft, can
The first supporting swing arm being rotatably installed in first rotating shaft, the second rotating shaft, rotatably mounted being arranged in the first supporting swing arm
In the second rotating shaft second supports swing arm and is arranged on below the first supporting swing arm and rotates down pole for limiting rotation
The block of extreme position, the first rotating shaft and the second shaft parallel, the plane of rotation of the first supporting swing arm and the second support swing arm
Plane of rotation is in same vertical plane；
It is described second support swing arm have be located at second support swing arm plane of rotation in extend trigger arm, anti-fall block and
Weight arm, the trigger arm and weight arm are located at the relative both sides of the second rotating shaft respectively.
Used as preferred, the angle between the anti-fall block and trigger arm is acute angle.
Used as preferred, the top surface of the block is plane, and the first supporting swing arm underlying surfaces are plane.
As preferred, the first limited block is provided with the close second support swing arm of the first supporting swing arm, it is described anti-fall
During the top surface level of block, the trigger arm is connected to the first limited block.
As preferred, the arcwall face of the depression of the anti-fall block uper side surface tool.
Used as preferred, the anti-fall block downside surface is arc surface.
Used as preferred, the base two sides are respectively provided with the first installing arm, and each installation facies medialis brachii is equipped with
Two guide posts for being used to be oriented to montant.
Using the beneficial effects of the invention are as follows：
This anti-fall device can be when elevating scaffold falls suddenly by the setting of trigger arm, and cross bar hits cross bar so that
Anti-fall block overcomes weight arm to rotate so that anti-fall block turns to horizontality, and the first supporting swing arm is connected to support
Part so that the present apparatus can support cross bar.Under general state, cross bar can be moved up and down the present apparatus, not limited by trigger arm.This
Device low production cost, Stability Analysis of Structures reliability, later maintenance cost is low.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention.
Fig. 2 is the schematic diagram that the present invention coordinates elevating scaffold.
Fig. 3 is that elevating scaffold of the present invention rises process status figure.
Fig. 4 is that elevating scaffold of the present invention rises another state diagram of process.
Fig. 5 is elevating scaffold drop event state diagram of the present invention.
Fig. 6 is another state diagram of elevating scaffold drop event of the present invention.
Fig. 7-Figure 10 is the second supporting swinging arm view during elevating scaffold decline in the present invention.
Reference includes：
100- bases 110- first supports swing arm the first limited blocks of 111-
120- second supports the swing arm 121- trigger arms anti-fall blocks of 122-
123- weight arms 124- the second limited block 130- first rotating shafts
140- the second rotating shaft 150- block 160- installing plates
170- the first installing arm 171- directive wheel 210- montants
220- cross bars
Specific embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
By taking scaffold as an example, the present apparatus includes but does not limit and scaffold that the present apparatus is adapted to various lifting structures to the present embodiment,
Such as various devices such as hoistable platform, elevator.
As shown in figs 1 to 6, the present embodiment provides a kind of swing arm anti-fall device, and elevating scaffold includes the He of montant 210
Cross bar 220, swing arm anti-fall device includes base 100, is arranged on the first rotating shaft 130 of base 100, may be rotatably mounted at first
In rotating shaft 130 first supports swing arm 110, the second rotating shaft 140 being arranged in the first supporting swing arm 110, may be rotatably mounted at
The second support swing arm 120 in second rotating shaft 140 and be arranged on the lower section of the first supporting swing arm 110 and for limit rotation to
The block 150 of lower rotation limit position, first rotating shaft 130 is parallel with the second rotating shaft 140, the plane of rotation of the first supporting swing arm 110
With second support swing arm 120 plane of rotation in same vertical plane；Second support swing arm 120 has positioned at the second support swing arm
Trigger arm 121, anti-fall block 122 and the weight arm 123 extended in 120 plane of rotation, trigger arm 121 and weight arm 123 are distinguished
Positioned at the relative both sides of the second rotating shaft 140, when elevating scaffold falls, cross bar 220 drives second to support swing arm 120 to turn downwards
It is dynamic, and cause the top surface level and support cross bar 220 of anti-fall block 122.
Specifically, the back side of the first supporting swing arm 110 of the present apparatus is arranged on the surface of building or steady by installing plate 160
In fixed structure, the front of the first supporting swing arm 110 is the structure of open type, and base 100 is provided with first rotating shaft 130, first
Supporting swing arm 110 has through hole, by way of through hole is sleeved on first rotating shaft 130 so that the first supporting swing arm 110 is rotatable
Be connected with base 100, the first supporting swing arm 110 is provided with the second rotating shaft 140 near unlimited side, similar with first rotating shaft 130,
Second support swing arm 120 is rotatably connected with the first supporting swing arm 110.In the present embodiment, the rotating shaft of first rotating shaft 130 and second
140 are set up in parallel so that the plane of rotation of the first supporting support swing arm 120 of swing arm 110 and second is in the same space.First supporting
The lower section of swing arm 110 is provided with block 150, and the top surface of the block 150 in the present embodiment is horizontal plane, the first supporting swing arm 110 to
When lower rotation touches block 150, the first supporting swing arm 110 is also plane with the contact surface of block 150 so that block 150 pairs
First supporting swing arm 110 provides relatively stable enabling capabilities.
Trigger arm 121 and weight arm 123 are located at the back of the body of the second rotating shaft 140 in the second support swing arm 120 in the present embodiment
The both sides of phase, top side is provided with anti-fall block 122 between trigger arm 121 and weight arm 123, in the present embodiment,
Angle between anti-fall block 122 and trigger arm 121 is acute angle.
As shown in Figure 3, Figure 4, during Fig. 3, Fig. 4 represent that elevating scaffold rises, the action process of the present apparatus.Lifting
During scaffold rises, the weight of weight arm 123 is more than the weight of trigger arm 121, in general state, trigger arm 121
In on the stroke of the walking of cross bar 220.When cross bar 220 is walked upwards, second limited block 124 at second support swing arm 120 back side
Touch the first limited block 111 in the first supporting swing arm 110 so that the first supporting swing arm 110 can limit the second support swing arm
120 turned position, when cross bar 220 is walked further up, the rigidity of the first supporting support of swing arm 110 and second swing arm 120
Connection, the first supporting support swing arm 120 of swing arm 110 and second is rotated up entirely around first rotating shaft 130.Got in cross bar 220
After crossing trigger arm 121, the first supporting swing arm 110 and second supports swing arm 120 according to self gravitation, and automatic whereabouts is returned to one
As state.
As shown in figure 5, during the slower speed of cross bar 220 is moved down, cross bar 220 drives trigger arm 121 to rotate, and touches
Hair arm 121 overcomes the weight of weight arm 123 to rotate down, and after cross bar 220 crosses trigger arm 121, weight arm 123 is according to itself
Weight tilts trigger arm 121 again.Fig. 7-Figure 10 embodies the second support swing arm during scaffold slowly declines in detail
120 action process.It can be seen that the first support swing arm 110 in the process when be failure to actuate.
As shown in Figure 5, Figure 6, during cross bar 220 is moved down faster, more triggered with velocity shock faster
Arm 121, trigger arm 121 overcomes the gravity of weight arm 123 so that the second support swing arm 120 is rotated around the second rotating shaft 140, is made
Obtain anti-fall block 122 and turn to horizontality, the trigger arm 121 in the second support swing arm 120 abuts to the first supporting swing arm 110
On so that the second support swing arm 120 and rotating shaft are rigidly connected, while the first supporting swing arm 110 and block 150 are also for rigidity connects
Connect.Now elevating scaffold continues to fall, and the cross bar 220 of top is supporting at the upper surface of anti-fall block 122, realizes anti-fall work(
Energy.
Angle between anti-fall block 122 and trigger arm 121 is acute angle.The rotational angle of anti-fall block 122 is smaller so that anti-
Pendant block 122 more can quickly move to horizontality.
The uper side surface of anti-fall block 122 has the arcwall face for placing the depression of cross bar 220.So that cross bar 220 is more
The firm upper surface for being placed in anti-fall block 122.The downside surface of anti-fall block 122 is arc surface so that cross bar 220 is more smoothed
Cross trigger arm 121.
The length of trigger arm 121 matches with the axle center of the second rotating shaft 140 to the air line distance in the movement of cross bar 220 face, makes
Obtain cross bar 220 to be relatively easy to cross trigger arm 121, and detection cross bar 220 can be played a part of and hurtle down.
The two sides of base 100 are respectively provided with the first installing arm 170, each installation facies medialis brachii be equipped with two it is perpendicular for being oriented to
The guide post of bar 210, two directive wheels 171 of each trigger arm 121 limit a montant 210 so that two groups of 171 points of directive wheels
Dao Xiang not upgrade two montants 210 of scaffold.
Above content is only presently preferred embodiments of the present invention, for one of ordinary skill in the art, according to of the invention
Thought, in specific embodiments and applications can be so that many changes may be made, as long as these changes are without departing from structure of the invention
Think, belong to protection scope of the present invention.
Claims (7)
1. a kind of swing arm anti-fall device, it is characterised in that：The swing arm anti-fall device includes base, is arranged on the of base
One rotating shaft, may be rotatably mounted in first rotating shaft first supporting swing arm, be arranged in the first supporting swing arm the second rotating shaft, can
Be rotatably installed in the second rotating shaft second support swing arm and be arranged on the first supporting swing arm lower section and for limit rotation to
The block of lower rotation limit position, the first rotating shaft and the second shaft parallel, first supporting swing arm plane of rotation and second
The plane of rotation of support swing arm is in same vertical plane；
The second support swing arm has trigger arm, anti-fall block and the counterweight for being located at and extending in the plane of rotation of the second support swing arm
Arm, the trigger arm and weight arm are located at the relative both sides of the second rotating shaft respectively.
2. swing arm anti-fall device according to claim 1, it is characterised in that：Between the anti-fall block and trigger arm
Angle is acute angle.
3. swing arm anti-fall device according to claim 1, it is characterised in that：The top surface of the block is plane, described
First supporting swing arm underlying surfaces are plane.
4. swing arm anti-fall device according to claim 1, it is characterised in that：The first supporting swing arm is near second
The first limited block is provided with support swing arm, during the top surface level of the anti-fall block, the trigger arm is connected to the first limited block.
5. swing arm anti-fall device according to claim 1, it is characterised in that：It is recessed that the anti-fall block uper side surface has
Sunken arcwall face.
6. swing arm anti-fall device according to claim 1, it is characterised in that：The anti-fall block downside surface is circular arc
Face.
7. swing arm anti-fall device according to claim 1, it is characterised in that：The base two sides are respectively provided with the first peace
Dress arm, each facies medialis brachii of installing is equipped with two guide posts for being oriented to montant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710211229.3A CN106836781B (en) | 2017-03-31 | 2017-03-31 | Swing arm type anti-falling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710211229.3A CN106836781B (en) | 2017-03-31 | 2017-03-31 | Swing arm type anti-falling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106836781A true CN106836781A (en) | 2017-06-13 |
| CN106836781B CN106836781B (en) | 2023-06-09 |
Family
ID=59141845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710211229.3A Active CN106836781B (en) | 2017-03-31 | 2017-03-31 | Swing arm type anti-falling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106836781B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355069A (en) * | 2017-08-11 | 2017-11-17 | 顾志勇 | A kind of climbing frame falling proof mechanism and the climbing frame falling proof seat in the plane lock based on the mechanism |
| CN109372244A (en) * | 2018-11-23 | 2019-02-22 | 成都嘉泽正达科技有限公司 | Scaffold anti-fall device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2011986A (en) * | 1978-01-05 | 1979-07-18 | Simmonds E C | A scaffolding system with associated hoist |
| CN102383587A (en) * | 2011-11-28 | 2012-03-21 | 江苏天任建设有限公司 | Kinetic-energy-free falling-preventing safety lock for scaffold |
| CN205591532U (en) * | 2016-04-28 | 2016-09-21 | 中建六局建设发展有限公司 | A anti -falling device for inserted lift scaffold |
| CN106401163A (en) * | 2015-07-31 | 2017-02-15 | 江苏万元模架工程有限公司 | Pawl guide rail-type anti-falling wall-attached device |
| CN206769357U (en) * | 2017-03-31 | 2017-12-19 | 深圳市中升建科科技发展有限公司 | A kind of swing arm anti-fall device |
-
2017
- 2017-03-31 CN CN201710211229.3A patent/CN106836781B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2011986A (en) * | 1978-01-05 | 1979-07-18 | Simmonds E C | A scaffolding system with associated hoist |
| CN102383587A (en) * | 2011-11-28 | 2012-03-21 | 江苏天任建设有限公司 | Kinetic-energy-free falling-preventing safety lock for scaffold |
| CN106401163A (en) * | 2015-07-31 | 2017-02-15 | 江苏万元模架工程有限公司 | Pawl guide rail-type anti-falling wall-attached device |
| CN205591532U (en) * | 2016-04-28 | 2016-09-21 | 中建六局建设发展有限公司 | A anti -falling device for inserted lift scaffold |
| CN206769357U (en) * | 2017-03-31 | 2017-12-19 | 深圳市中升建科科技发展有限公司 | A kind of swing arm anti-fall device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355069A (en) * | 2017-08-11 | 2017-11-17 | 顾志勇 | A kind of climbing frame falling proof mechanism and the climbing frame falling proof seat in the plane lock based on the mechanism |
| CN109372244A (en) * | 2018-11-23 | 2019-02-22 | 成都嘉泽正达科技有限公司 | Scaffold anti-fall device |
| WO2020103368A1 (en) * | 2018-11-23 | 2020-05-28 | 成都嘉泽正达科技有限公司 | Scaffold anti-falling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106836781B (en) | 2023-06-09 |
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