CN207270592U - Tower crane cat ladder anti-fall device - Google Patents
Tower crane cat ladder anti-fall device Download PDFInfo
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- CN207270592U CN207270592U CN201721153149.9U CN201721153149U CN207270592U CN 207270592 U CN207270592 U CN 207270592U CN 201721153149 U CN201721153149 U CN 201721153149U CN 207270592 U CN207270592 U CN 207270592U
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- 241000282326 Felis catus Species 0.000 title claims abstract description 60
- 230000006835 compression Effects 0.000 claims abstract description 33
- 238000007906 compression Methods 0.000 claims abstract description 33
- 238000009434 installation Methods 0.000 abstract description 4
- 230000009194 climbing Effects 0.000 description 10
- 238000010276 construction Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model provides a kind of tower crane cat ladder anti-fall device, further includes the C-shaped block being sleeved on cat ladder, and C-shaped block is made of the L-shaped bar that a straight-bar and two are vertically connected on straight-bar both ends, and L-shaped bar is detachably connected on straight-bar；Fixed link is arranged with straight-bar, is connected between fixed link and straight-bar by compression elastic piece, fixed link is connected with trigger element, and trigger element control fixed link pop-up straight-bar is simultaneously connected on L-shaped bar.When running into emergency, trigger element triggering, compression elastic piece driving fixed link stretches out straight-bar, is connected on L-shaped bar；The straight-bar of stretching is blocked by the cross bar of cat ladder, prevents staff from dropping.During installation, first straight-bar is connected to straight-bar both ends using dismountable L-shaped bar, cat ladder is trapped among in C-shaped block close to cat ladder；According to the C-shaped block of cat ladder width design can clamping on cat ladder, and can be slid along cat ladder montant direction, it is of simple structure and low cost without the in addition installation auxiliary device on cat ladder.
Description
Technical field
A kind of anti-fall device is the utility model is related to, more particularly to a kind of tower crane cat ladder anti-fall device.
Background technology
For low layer tower crane, operating personnel is generally climbed up by the cat ladder being vertically arranged in standard section of tower crane；For
Tower crane on the middle and senior level, in the general Shang Dao buildings body of operating personnel, then is entered in standard section of tower crane by building body and is climbed.Operating personnel
In high-altitude, climbing is extremely dangerous, and therefore, it is necessary to wear anti-fall device to ensure its safety.
At present, the Chinese invention patent that notification number is CN103432695A discloses a kind of tower crane vertical ladder and draws anti-fall dress
Put, including sliding rail, carriage, closedown structure part, locking stop step；Sliding rail is fixed on cat ladder montant, sliding
Row's locking is provided with the outside of the sliding groove in dynamic rail road and stops step, carriage is provided with the sliding groove of sliding rail, it is sliding
Dynamic device is equipped with closedown structure part, and by slip of the carriage in sliding groove to climb up and down, emergency is occurring
When, closedown structure part, which can be blocked, stops that step blocks, and prevents operating personnel from continuing to drop.
Although this tower crane vertical ladder traction anti-fall device can prevent the operating personnel of climbing from dropping because accident occurs,
But the device need install sliding rail successively on cat ladder montant, when tower crane is folded it is high when, sliding rail is elongated, puts into
This increase.
Utility model content
The purpose of this utility model is to provide a kind of tower crane cat ladder anti-fall device, can be achieved to prevent without installing sliding rail
Drop function, it is of low cost.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of tower crane cat ladder is anti-fall
Device, further includes the C-shaped block being sleeved on cat ladder, the C-shaped block is by a straight-bar and two L-shaped for being vertically connected on straight-bar both ends
Bar forms, and the L-shaped bar is detachably connected on straight-bar；Fixed link is arranged with the straight-bar, between the fixed link and straight-bar
Connected by compression elastic piece, the fixed link is connected with trigger element, and the trigger element controls the fixed link pop-up straight
Bar is simultaneously connected on L-shaped bar.
By using above-mentioned technical proposal, when running into emergency, trigger element triggering, compression elastic piece drives fixed link
Straight-bar is stretched out, is connected on L-shaped bar；The straight-bar of stretching is blocked by the cross bar of cat ladder, prevents staff from dropping；In addition, will be anti-
Fall device is designed as C-shaped block to be sleeved on cat ladder.During installation, first straight-bar is connected to close to cat ladder using dismountable L-shaped bar
Straight-bar both ends, cat ladder is trapped among in C-shaped block；According to the C-shaped block of cat ladder width design can clamping on cat ladder, and can be along cat ladder
Montant direction slides, of simple structure and low cost without the in addition installation auxiliary device on cat ladder.
Further, accommodating hole is offered in the straight-bar, the fixed link is positioned in the accommodating hole, described accommodating
Hole is set close to L-shaped bar one end open, and the trigger element includes the baffle positioned at opening, and the compression elastic piece is fixed on
One end away from L-shaped bar in accommodating hole.
By using above-mentioned technical proposal, normally during climbing, C-shaped block slides along cat ladder, and fixed link is installed in straight-bar setting
Accommodating hole in；Influence anti-fall device in order to avoid fixed link is stretched out and slided on cat ladder, in accommodating hole close to L-shaped bar one
End sets a block baffle to block fixed link；In addition, in order to enable in fixed link quick insertion mounting hole, in fixed link away from L
Shape bar one end is connected with compression elastic piece, and compression elastic piece is compressed in mounting hole, in this way, in case of emergency, triggering is single
Member is triggered, and opens baffle, and fixed link can be ejected rapidly by compression elastic piece, be fixed in mounting hole, block cat ladder
Cross bar is to prevent anti-fall device from falling.
Further, the trigger element further includes the insurance hole set in straight-bar, and the baffle side passes through fuse
It is connected on insurance hole inner wall, the baffle opposite side is rotatably connected on accommodating hole inner wall, is cased with setting on the fuse
Safety rope in insurance hole.
By using above-mentioned technical proposal, the folding of baffle is realized；Trigger element further includes safety rope, fuse and insurance
Hole, baffle side are rotatably connected on accommodating hole inner wall, and the other end is connected to fuse, and fuse is fixed in insurance hole, are protected
It is a safety rope on dangerous silk；During climbing, fuse holds baffle, prevents fixed link from pushing baffle pop-up open；It is unexpected when occurring
When, safety rope breaks fuse and plays trigger action, and the fixed link that baffle is ejected is pushed open, and the fixed link of stretching can be inserted into admittedly
Determine in hole, prevent anti-fall device from gliding, hold operating personnel.
Further, the safety rope is pierced by from insurance bore ends, and the safety rope is located on the position in insurance hole solid
Surely there is stopper, the stopper is only capable of sliding in insurance hole.
By using above-mentioned technical proposal, stopper is fixed on safety rope, stopper follows safety rope in insurance hole
Middle sliding, in order to avoid safety rope completely disengages insurance hole, the diameter design for the hole that safety rope is pierced by is less than stopper
Diameter, to prevent stopper from skidding off insurance hole.
Further, the second elastic component is fixed with away from L-shaped bar side on the straight-bar, is connected on second elastic component
There is drawstring.
By using above-mentioned technical proposal, a drawstring is fixed on straight-bar and is connected on operating personnel's body, is normally climbed
When climbing, operating personnel pulls drawstring to drive anti-fall device to be slid on cat ladder；The second elastic component set between drawstring and straight-bar
It can be excessively stretched and follow the string when operating personnel falls, extend drawstring.
Further, the position on the C-shaped block inner wall with cat ladder contact is equipped with roller.
By using above-mentioned technical proposal, anti-fall device sliding is arranged on cat ladder, when operating personnel climbs upwards, C-shaped
Block inner wall and cat ladder contact friction, pull anti-fall device, larger resistance can make anti-fall device be difficult to slide obliquely；Therefore,
Roller is set on C-shaped block madial wall, to reduce resistance when pulling, convenient working personnel climbing.
Further, mounting hole is provided with the L-shaped bar, the fixed link can be inserted in mounting hole.
By using above-mentioned technical proposal, correspond to fixed link position in L-shaped bar and open a mounting hole, the fixed link of pop-up
It can be inserted into mounting hole, avoid fixed link from hitting and be shot back on L-shaped bar, and threaten the safety of operating personnel.
Further, alarm groove is provided with the inner wall of the mounting hole, described alarm groove one end is equipped with pressure sensor, institute
State pressure sensor and be connected to signal projector, the signal projector is equipped with corresponding signal receiver, in the alarm groove
Sliding is equipped with the compression bar that one end is sphere, and spherical one end is placed in mounting hole, between the compression bar and pressure sensor
It is fixed with the 3rd elastic component that driving compression bar enters mounting hole.
By using above-mentioned technical proposal, when emergency occurs, fixed link pop-up is inserted into mounting hole；And in mounting hole
Sliding is equipped with a compression bar, and fixed link promotes compression bar, presses the pressure sensor being arranged in alarm groove, pressure sensor receives
Signal projector is passed to after signal, the signal that signal projector is sent is received by supporting signal receiver, construction personnel's root
It is believed that it is unexpected number to learn that operating personnel occurs, operating personnel is rescued in time；And compression bar can be in the work of the 3rd elastic component
It is pressed under in fixed link, with stabilized fixed link, improves the security of anti-fall device.
In conclusion the utility model has the advantages that：
It is cost-effective without in cat ladder upper mounting rail 1. by the way that modular C-shaped block is sleeved on cat ladder；
2. by the setting of fixed link and mounting hole, when emergency occurs, operating personnel can be prevented to fall.
Brief description of the drawings
Fig. 1 is the overall structure figure of tower crane cat ladder and anti-fall device under normal condition；
Fig. 2 is the front view of tower crane cat ladder and anti-fall device under normal condition；
Fig. 3 is the sectional view in A-A directions in Fig. 2；
Fig. 4 is the enlarged drawing of part B in Fig. 3；
Fig. 5 is the overall structure figure of tower crane cat ladder and anti-fall device under the state of emergency；
Fig. 6 is the front view of tower crane cat ladder and anti-fall device under the state of emergency；
Fig. 7 is the sectional view in C-C directions in Fig. 6.
In figure, 1, cat ladder；11st, montant；12nd, cross bar；2nd, anti-fall device；21st, C-shaped block；22nd, straight-bar；23rd, L-shaped bar；3rd, butterfly
Shape bolt；4th, fixed link；41st, mounting hole；42nd, accommodating hole；43rd, compression elastic piece；44th, baffle；5th, stopper；51st, fuse；
52nd, insurance hole；53rd, safety rope；6th, groove；61st, the second elastic component；62nd, drawstring；7th, roller；8th, alarm groove；81st, compression bar；82、
3rd elastic component；83rd, pressure sensor；84th, signal projector；9th, safety harness.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment：
A kind of tower crane cat ladder anti-fall device, as shown in Figure 1, cat ladder 1 includes montant 11 and the horizontal connection of vertical support
Cross bar 12 between montant 11；Anti-fall device 2 is sleeved on cat ladder 1, including C-shaped block 21 and the safety that is connected on C-shaped block 21
Shoulder strap 9；During normal climbing, C-shaped block 21 in the drawstring 62 of exceptionally straight state and the safety rope 53 of relaxed state by being connected to safety
On shoulder strap 9, operating personnel's dress wears safety harness 9, and anti-fall device 2 follows operating personnel to be slid on cat ladder 1.
As shown in Figure 1, C-shaped block 21 includes and the straight-bar 22 that is arranged in parallel of cross bar 12 and horizontally disposed perpendicular to straight-bar 22
L-shaped bar 23；As shown in Figures 2 and 3, two 23 one end of L-shaped bar are detachably mounted in 22 both ends of straight-bar, and the other end is distinguished with straight-bar 22
Positioned at the both sides of 1 cross bar 12 of cat ladder, so that C-shaped block 21 is sheathed on outside cat ladder 1.22 both ends of straight-bar are provided with screw hole, 23 end of L-shaped bar
Portion is rotatably connected to wing bolt 3, is directed at screw hole, wing bolt 3 is screwed into screw hole, fixes C-shaped block 21；As shown in Figure 1,
Here, the size of C-shaped block 21 is set according to 1 width of cat ladder and thickness, make C-shaped block 21 can be slid on cat ladder 1 and
Directly glide under gravity.
As shown in Figure 3 and Figure 4, two fixed links 4, fixed link are symmetrical arranged in 22 both sides of straight-bar, towards the inner side of C-shaped block 21
4 are placed in the accommodating hole 42 opened up in straight-bar 22, and accommodating hole 42 is opened up perpendicular to straight-bar 22, and close to the inner side of C-shaped block 21
One end perforation straight-bar 22 is set, and fixed link 4 is stretched out from accommodating hole 42, and other end closing is set.At 42 port of accommodating hole
A baffle 44 that can block 42 end of accommodating hole is provided with, as shown in figure 4, here, 44 side of baffle is turned by rotation axis
It is dynamic to be connected to 42 port of accommodating hole.It is connected with as shown in figure 3, being compressed between 42 inside blind end of accommodating hole and 4 end of fixed link
Compression elastic piece 43, here, compression elastic piece 43 select the first spring.
As shown in Figure 3 and Figure 4, in straight-bar 22, an insurance hole 52, insurance hole 52 are equipped with accommodating hole 42 is parallel on one side
In in straight-bar 22, and its is closed at both ends.As shown in figure 4, the side on baffle 44, opposite with rotation axis is connected with fuse 51,
Open up the through hole passed through for fuse 51 between insurance hole 52 and accommodating hole 42, fuse 51 is by through hole from accommodating hole 42
Into insurance hole 52, and it is fixed on inner wall of the insurance hole 52 away from 42 side of accommodating hole.Here fuse 51 can will bear to press
The pressure of contracting elastic component 43 is without being broken；A safety rope 53 is cased with fuse 51, as shown in figures 1 and 3, is protected
Danger rope 53 is pierced by out of insurance hole 52, is connected on safety harness 9, and does not have tension force on safety rope 53 in normal climbing.Such as
Shown in Fig. 3, in insurance hole 52, one piece of cylindrical stopper 5 is fixed with safety rope 53, stopper 5 is located at safety rope 53
Tie point and safety rope 53 with fuse 51 is between the hole that straight-bar 22 is pierced by, in this way, as shown in Figures 5 to 7, anticipating
Outside, during 53 stress of safety rope, safety rope 53 is fixed with regard to that can be blocked block 5, prevents it from departing from completely out of insurance hole 52, to draw
Live in operating personnel.
As shown in figure 3, on part of the L-shaped bar 23 parallel to cross bar 12, corresponding 4 position of fixed link is provided with mounting hole 41；
An alarm groove 8 parallel to cross bar 12 is provided with 41 inner wall of mounting hole, one end away from mounting hole 41 is fixed in alarm groove 8
There is pressure sensor 83, and sliding is equipped with compression bar 81 in alarm groove 8,81 one end of compression bar is equipped with pressure sensor 83 with alarm groove 8
One end connected by the 3rd elastic component 82,81 other end of compression bar be sphere set, compression bar 81 is sphere under spring action
One end reach in mounting hole 41；It can be pressed in sphere one end retraction alarm groove 8 after fixed link 4 enters mounting hole 41, with
Pressure sensor 83 is triggered, and signal projector 84 is fixed with away from 81 side of compression bar in pressure sensor 83.As shown in fig. 7,
Here after the 3rd elastic component 82 selects the 3rd spring, and the pop-up of fixed link 4 is fixed in mounting hole 41, blocked, hinder by cross bar 12
Only anti-fall device 2 glides.
In case of emergency, as shown in figure 5 and figure 7, after fuse 51 is broken by safety rope 53, fixed link 4 is pushed open
Baffle 44 is inserted into mounting hole 41, and fixed link 4 promotes the spherical one end of compression bar 81, makes to be converted into along the axial thrust of fixed link 4
The pressure axial along compression bar 81, the 3rd spring of compression make 83 stress of pressure sensor, and the pressure sensor 83 being triggered is by signal
Signal projector 84 is passed to, transmits signals to at the signal receiver of 84 supporting setting of signal projector, reminds construction
Personnel are rescued.In addition, compression bar 81 can also be pressed in the fixed link 4 plugged into, fixed link 4 is avoided to slide, and shadow
Ring the safety of operating personnel.
As shown in figure 3, the second bullet is utilized in groove 6 away from digging fluted 6 in 23 one side of L-shaped bar at the middle part of straight-bar 22
Property part 61 is fixed with drawstring 62.As shown in Figure 1, during normal climbing, drawstring 62 is shorter than two safety ropes 53, and operating personnel pulls anti-
When fall device 2 moves, 62 stress of drawstring, into exceptionally straight state, safety rope 53 does not stress；As shown in figure 5, the second elastic component 61 here
Select second spring, and second spring when bearing the pulling force of man's generation completely can lost its bounce be stretched elongation, into
And the total length of 62 and second elastic component 61 of drawstring is elongated, pulling force is set to be transferred on safety rope 53.
As shown in figures 1 and 3, a piece shaft is set in the inner side of L-shaped bar 23, is rotated in shaft and roller 7 is housed, rolled here
Rubber is cased with wheel 7 enables C-shaped block 21 to grab steady cat ladder 1, and the setting of roller 7 being capable of convenient working personnel pulling anti-fall device
2 follow operating personnel to move.
The course of work：Operating personnel wears safety harness 9, and L-shaped bar 23 is fixed on straight-bar 22 by wing bolt 3,
C-shaped block 21 is fixed on cat ladder 1.During normal climbing, operating personnel moves up, and tenses drawstring 62 and drives anti-fall device 2
Move up, safety rope 53 is in the state that do not stress.
When an emergency situation is encountered, and operating personnel departs from cat ladder 1, the second elastic component 61 at drawstring 62 is under human bady gravitational
Stretch, make two 53 stress of safety rope, at this time, safety rope 53 breaks fuse 51, and fixed link 4 pushes baffle 44 open and is inserted into mounting hole
41, the cross bar 12 that fixed link 4 is horizontally set blocks, and prevents operating personnel from continuing to fall；Touched by the compression bar 81 that fixed link 4 is depressed
Pressure sensor 83 is sent out, signal projector 84 is sent signal, the construction personnel of other positions receives letter by signal receiver
Number, immediately operating personnel is unfolded to rescue.
The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical solutions belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (8)
- A kind of 1. tower crane cat ladder anti-fall device, it is characterised in that：Including being sleeved on cat ladder（1）On C-shaped block（21）, the C-shaped block （21）By a straight-bar（22）Straight-bar is vertically connected on two（22）The L-shaped bar at both ends（23）Composition, the L-shaped bar（23）Can Dismantling connection is in straight-bar（22）On；The straight-bar（22）In be arranged with fixed link（4）, the fixed link（4）And straight-bar（22）Between Pass through compression elastic piece（43）Connection, the fixed link（4）Trigger element is connected with, the trigger element controls the fixed link （4）Eject straight-bar（22）And it is connected to L-shaped bar（23）On.
- 2. tower crane cat ladder anti-fall device according to claim 1, it is characterised in that：The straight-bar（22）Inside offer accommodating Hole（42）, the fixed link（4）It is positioned over the accommodating hole（42）It is interior, the accommodating hole（42）Close to L-shaped bar（23）Open one end Mouth is set, and the trigger element includes the baffle positioned at opening（44）, the compression elastic piece（43）It is fixed on accommodating hole （42）In away from L-shaped bar（23）One end.
- 3. tower crane cat ladder anti-fall device according to claim 2, it is characterised in that：The trigger element further includes straight-bar （22）The insurance hole of middle setting（52）, the baffle（44）Side passes through fuse（51）It is connected to insurance hole（52）On inner wall, The baffle（44）Opposite side is rotatably connected on accommodating hole（42）On inner wall, the fuse（51）On be cased with being arranged on insurance hole （52）In safety rope（53）.
- 4. tower crane cat ladder anti-fall device according to claim 3, it is characterised in that：The safety rope（53）From insurance hole （52）End is pierced by, the safety rope（53）Positioned at insurance hole（52）In position on be fixed with stopper（5）, the stopper （5）It is only capable of in insurance hole（52）Middle sliding.
- 5. tower crane cat ladder anti-fall device according to claim 1, it is characterised in that：The straight-bar（22）Upper remote L-shaped bar （23）Side is fixed with the second elastic component（61）, second elastic component（61）On be connected with drawstring（62）.
- 6. tower crane cat ladder anti-fall device according to claim 1, it is characterised in that：The C-shaped block（21）On inner wall and climb Ladder（1）The position of contact is equipped with roller（7）.
- 7. tower crane cat ladder anti-fall device according to claim 1, it is characterised in that：The L-shaped bar（23）On be provided with fixation Hole（41）, the fixed link（4）Mounting hole can be inserted in（41）In.
- 8. tower crane cat ladder anti-fall device according to claim 7, it is characterised in that：The mounting hole（41）Inner wall on open There is alarm groove（8）, the alarm groove（8）One end is equipped with pressure sensor（83）, the pressure sensor（83）It is connected to signal Transmitter（84）, the signal projector（84）Equipped with corresponding signal receiver, the alarm groove（8）Middle sliding is equipped with one end For the compression bar of sphere（81）, and spherical one end is placed in mounting hole（41）In, the compression bar（81）And pressure sensor（83） Between be fixed with driving compression bar（81）Into mounting hole（41）The 3rd elastic component（82）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721153149.9U CN207270592U (en) | 2017-09-08 | 2017-09-08 | Tower crane cat ladder anti-fall device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721153149.9U CN207270592U (en) | 2017-09-08 | 2017-09-08 | Tower crane cat ladder anti-fall device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207270592U true CN207270592U (en) | 2018-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721153149.9U Active CN207270592U (en) | 2017-09-08 | 2017-09-08 | Tower crane cat ladder anti-fall device |
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| CN (1) | CN207270592U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723189A (en) * | 2021-02-26 | 2021-04-30 | 深圳市瑾能顺建材有限公司 | Following formula tower crane cat ladder anti-falling device |
| CN113750545A (en) * | 2021-10-08 | 2021-12-07 | 华东游乐设备有限公司 | Parent-child interaction type child naughty fort |
-
2017
- 2017-09-08 CN CN201721153149.9U patent/CN207270592U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723189A (en) * | 2021-02-26 | 2021-04-30 | 深圳市瑾能顺建材有限公司 | Following formula tower crane cat ladder anti-falling device |
| CN113750545A (en) * | 2021-10-08 | 2021-12-07 | 华东游乐设备有限公司 | Parent-child interaction type child naughty fort |
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