CN103394175B - A kind of board-like aerial work steel strand type self-locking device - Google Patents
A kind of board-like aerial work steel strand type self-locking device Download PDFInfo
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- CN103394175B CN103394175B CN201310363343.XA CN201310363343A CN103394175B CN 103394175 B CN103394175 B CN 103394175B CN 201310363343 A CN201310363343 A CN 201310363343A CN 103394175 B CN103394175 B CN 103394175B
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Abstract
The present invention discloses a kind of board-like aerial work steel strand type self-locking device, comprise housing, blocking mechanism and lockable mechanism, housing comprises mainboard, front baffle plate and side board, the homonymy of mainboard is provided with upper and lower rolling guide wheel, steel strand wires is carried out to rolling guiding, mainboard bottom is provided with bearing pin movable span, arranges fixing fixture block between upper and lower rolling guide wheel; Blocking mechanism comprises movable clip block, back-moving spring, clamping screw and removable pin, movable clip block is movably arranged in bearing pin movable span by removable pin, drive movable clip block to move forward and backward, matching to be formed with fixing fixture block clamps strand structure, back-moving spring is arranged between movable clip block and side board, and movable clip block is connected with side board by clamping screw, form the limiting structure of movable clip block; Lockable mechanism is arranged on mainboard, is locked on steel strand wires when operating personnel drops.Structure of the present invention is simple, easy to operate, decreases the wearing and tearing of self-locking device to steel strand wires, and self-locking device can be freely movable.
Description
Technical field
The present invention relates to a kind of board-like aerial work steel strand type self-locking device, what belong to work high above the ground personnel puts pendant safety guard.
Background technology
The shaft tower of China's high voltage circuit is generally made up of cement pole, steel tower, is that circuit is installed, run, service work all needs the frequent shaft tower up and down of trackman.Circuit homework personnel are climbing in the process of shaft tower up and down, because traditional safety belt cannot overall process play a role, personnel are in a kind of state losing protection sometimes, its P.P depends on the state of mind of self, physical situation, technical skills and surrounding enviroment factor etc. completely, if certain link generation problem, just likely there is the serious accident of personnel's high falling.Often carry out when natural conditions rather harsh such as strong wind, thunderstorm rain, hail, dense fog, sandstorms during line accident repairing in addition, take necessary safety measure, the personal safety of guarantee operating personnel.
Falling proof device conventional is at present rail type falling proof device, and this device is made up of parts such as frenulum, safety rope, guide rail, self-locking device, connector, steering gear, buffers usually, and wherein self-locking device is the core component of such device.Rail type falling proof device uses track difference to divide again " G " type guide rail fall arrest, T-shape guide rail fall arrest, steel strand wires falling proof device by it.
Steel strand wires falling proof device tool compared with other two classes falling proof device has the following advantages: cost is low: be generally " G " type, T-shaped rail falling proof device 1/10 ~ 1/5; Construction and installation are convenient; Be not easy to occur card rail.But the self-locking device of steel strand wires falling proof device and reinforcing bar trajectory are rigid material, what contact with steel strand wires in running is outer rigid housing, adopt holding device that steel strand wires and outer wall are held out against during self-locking and realize self-locking, therefore in running, easily produce wearing and tearing to steel strand wires, translation rigidity fricting movement ability is weak.And self-locking device by connector time, need to increase hand additional move and self-locking device is passed through, connector as shown in Figure 1, needs manually steel strand wires to be pulled out connector, until self-locking device by after again steel strand wires are retracted in connector circle.This technology need increase the operation bidirectional of operation people, will additionally consume operating personnel's muscle power.
Summary of the invention
Object of the present invention, to overcome prior art to steel strand wires serious wear, and the deficiencies such as self-locking operation effort, a kind of board-like aerial work steel strand type self-locking device is provided, the structure of this self-locking device is simple, low price, easy to use, reduces self-locking device to the wearing and tearing of steel strand wires, improve the locomitivity of self-locking device, enable that self-locking device is smooth-going passes through connector automatically.
Object of the present invention can be achieved through the following technical solutions:
A kind of board-like aerial work steel strand type self-locking device, comprise housing, blocking mechanism and lockable mechanism, it is characterized in that: housing adopts the plank frame with steel strand retaining clip block, comprise mainboard, front baffle plate and side board, be provided with upper and lower rolling guide wheel, to carry out rolling guiding to steel strand wires at the homonymy of mainboard; Be provided with bearing pin movable span in the bottom of mainboard, between upper and lower rolling guide wheel, fixing fixture block is set; Blocking mechanism comprises movable clip block, back-moving spring, clamping screw and removable pin, movable clip block is fixedly connected with one end of removable pin, the other end of removable pin is flexibly connected with bearing pin movable span, match to be formed with fixing fixture block and clamp strand structure, movable clip block is connected with side board by back-moving spring, form the resetting structure of movable clip block, and movable clip block is flexibly connected with side board by clamping screw, form the limiting structure of movable clip block; Lockable mechanism is arranged on mainboard, slides under normal circumstances along steel strand wires, occurs to be locked on steel strand wires when operating personnel drops.
Further, described lockable mechanism is made up of safety buckle, sphenocephaly fork and fork axle, the sphenocephaly of described sphenocephaly fork is socketed in one end, the formation rotary type syndeton of fork axle, and fork axle is fixedly connected with mainboard, and fork axle forms the moving fulcrum of sphenocephaly fork; Safety buckle is arranged on the afterbody of sphenocephaly fork.
Further: front baffle plate is isosceles trapezoid shape, be respectively provided with a lead, a part as guiding mechanism at the two ends at its long end, front baffle plate is fixedly connected with mainboard by guiding cylinder, and front baffle plate is arranged on before movable clip block.
Further: fixing fixture block and movable clip block are respectively provided with circular arc type groove, and the circular arc type groove surface of movable clip block and fixing fixture block arranges the stationary conduit being formed and clamp steel strand wires in opposite directions; The gap of 3 ~ 5mm together with being formed between movable clip block with fixing fixture block, forms the passage that horizontal fixture crosses over catching device.
Further: described mainboard is square plate.
Further: the clamping inclined-plane of described sphenocephaly fork forms coarse inclined-plane by annular knurl, frosted process.
Beneficial effect of the present invention:
1, easy for installation, reliable, the low price of the present invention, during installation, first unscrewing clamping screw, stir removable pin again, make the distance between movable clip block and fixing fixture block be greater than steel strand wires diameter, be then enclosed within steel strand wires by catching device, back-moving spring makes movable clip block reset, tighten clamping screw and withstand movable clip block, install.The present invention has only used two steps just to complete installation, and self-locking device is when by linker, without the need to additionally, adds the freedom that operating personnel is movable on steel strand wires; It also avoid because of additional operation simultaneously or operate the wrong installation caused and loosely to meet accident event.
2, the present invention arranges guide roller on mainboard, decreases the wearing and tearing causing self-locking device and steel strand wires because of relative motion, is also conducive to self-locking device simultaneously and moves on steel strand wires, reduces operating personnel to the influence of self-locking device.
3, the front baffle plate of self-locking device of the present invention is oblique structure, realize the guiding to horizontal clamping fixture head, horizontal clamping fixture head is made automatically to fall path clearance place thus to pass through passage, thus self-locking device can upper and lower freedom by the horizontal fixture on steel strand wires, without the need to the outer add operation of self-locking device.
4, the lockable mechanism of self-locking device of the present invention adopts sphenocephaly fork, and according to wedge-shaped clamping principle, rapidly, braking distance is short in braking, and cooperation lever principle increases the pressure to inclined-plane, makes its frictional force be enough to the gravity of off setting operation personnel.The clamping inclined-plane of sphenocephaly fork increases the frictional force on inclined-plane further by annular knurl, frosted process.
Accompanying drawing explanation
Fig. 1 is the structural representation of connector in prior art.
Fig. 2 is the front view of the self-locking device that the present invention relates to.
Fig. 3 is the internal structure schematic diagram of the self-locking device that the present invention relates to.
Fig. 4 is the rearview of the self-locking device that the present invention relates to.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated.
With reference to the one board-like aerial work steel strand type self-locking device shown in Fig. 2, Fig. 3 and Fig. 4, comprise housing 1, blocking mechanism 2 and lockable mechanism 3, housing 1 adopts the plank frame with steel strand retaining clip block, comprises mainboard 1-1, front baffle plate 1-2, side board 1-3, guiding cylinder 1-6 and upper and lower rolling guide wheel 1-7, described mainboard 1-1 is square plate, is provided with guide wheel installing hole at the side upper-lower position of mainboard 1-1, opposite side is provided with fork axis hole, and mainboard 1-1 bottom is provided with bearing pin movable span 1-5; Upper and lower rolling guide wheel 1-7 is arranged in guide wheel installing hole, to carry out rolling guiding to steel strand wires; Be fixed with fixing fixture block 1-4 between upper and lower rolling guide wheel 1-7, fixing fixture block 1-4 and mainboard 1-1 is structure as a whole, and fixing fixture block 1-4 is provided with circular arc type groove.Front baffle plate 1-2 is isosceles trapezoid shape, a lead 1-6, a part as guiding mechanism is respectively provided with at the two ends at its long end, 1-6 is cylindrical for guiding cylinder, front baffle plate 1-2 is fixed on mainboard 1-1 by described guiding cylinder 1-6, and front baffle plate 1-2 is arranged on before the movable clip block 2-1 of blocking mechanism 2; Side board 1-3 is arranged on the fork axis hole side of mainboard 1-1, and side board 1-3 is provided with screwed hole.
Blocking mechanism 2 comprises movable clip block 2-1, back-moving spring 2-2, clamping screw 2-3 and removable pin 2-4, movable clip block 2-1 is fixedly connected with one end of removable pin 2-4, the other end of removable pin 2-4 is arranged in bearing pin movable span 1-5, is flexibly connected with bearing pin movable span 1-5; Movable clip block 2-1 is provided with circular arc type groove, and the circular groove face of movable clip block 2-1 and fixing fixture block 1-4 is arranged in opposite directions, formed the stationary conduit clamping steel strand wires; The gap of 3 ~ 5mm together with being formed between movable clip block 2-1 with fixing fixture block 1-4, forms the passage that horizontal fixture crosses over catching device; Back-moving spring 2-2 one end is arranged on movable clip block 2-1, and the other end is arranged on side board 1-3, forms the resetting structure of movable clip block 2-1; Movable clip block 2-1 is flexibly connected by clamping screw 2-3 through the screwed hole of side board 1-3, forms the limiting structure of movable clip block 2-1 with side board 1-3; Lockable mechanism 3 is arranged on mainboard 1-1, slides under normal circumstances along steel strand wires, occurs to be locked on steel strand wires when operating personnel drops.
Described lockable mechanism 3 is made up of safety buckle 3-1, sphenocephaly fork 3-2 and fork axle 3-3, the sphenocephaly of described sphenocephaly fork 3-2 is socketed in one end, the formation rotary type syndeton of fork axle 3-3, fork axle 3-3 is fixedly connected with mainboard 1-1, and fork axle 3-3 forms the moving fulcrum of sphenocephaly fork 3-2; Safety buckle 3-1 is arranged on the afterbody of sphenocephaly fork 3-2, and the clamping inclined-plane of described sphenocephaly fork 3-2 forms coarse inclined-plane by annular knurl, frosted process.
Adopt catching device operation principle of the present invention:
When distance between the circular arc type groove and the circular arc type groove of fixing fixture block 1-4 of movable clip block 2-1 is greater than the diameter of steel strand wires, freely installing of steel strand wires can be realized.Movable clip block 2-1 can be withstood by lock-screw after steel strand wires are installed, steel strand wires are fixed in circular arc type groove.The gap leaving 4mm between the steel strand wires mounting groove of movable clip block 2-1 and fixing fixture block 1-4 is passed through to facilitate horizontal fixture, and horizontal fixture is by being led by front baffle plate 1-2 during the conduit of gap.When operating personnel upwards climbs, self-locking device is by upwards movable under the effect of safety rope, and when operating personnel is movable downwards, self-locking device is by the falls downward at self gravitation.Once operating personnel falls, sphenocephaly fork will push down steel strand wires, prevents the tenesmus of operating personnel, prevents the generation of contingency.
When self-locking device is installed, first unscrew clamping screw 2-3, eliminate the stop to movable clip block 2-1, stir removable pin 2-4, overcome the elastic force of back-moving spring 2-2, the distance between fixing fixture block 1-4 and movable clip block 2-1 is pulled open thus self-locking device can be made to be arranged on steel strand wires; Subsequently, under the elastic force effect of back-moving spring 2-2, movable clip block 2-1 replys, the gap of 4mm together with being formed with fixing fixture block 1-4, this gap will be the passage that horizontal fixture crosses over catching device subsequently, then clamping screw 2-3 is tightened, withstand the motion that movable clip block 2-1 limits it, self-locking device installs.
When self-locking device moves upward relative to steel strand wires, namely safety buckle 3-1 has been pulled upwardly, and the sphenocephaly of sphenocephaly fork 3-2, to lower swing, does not hinder the motion of self-locking device; When operating personnel is movable downwards, self-locking device will automatic descending under the Action of Gravity Field of self, and now, safety buckle 3-1 is still upwards pulled up, and ensure that self-locking device is expedite and moves downward.
There iing the place of horizontal fixture, first horizontal fixture can ride on lead 1-6, operating personnel only needs the safety rope through loins to affect self-locking device that it just can be allowed to slip down to 4mm clearance opening place along movable clip block 2-1, and such self-locking device just can pass through horizontal fixture smoothly.Self-locking device is descending runs into horizontal fixture also identical process, ensure that the upper and lower provisional capital of self-locking device by the obstruction of horizontal fixture.
Claims (4)
1. a board-like aerial work steel strand type self-locking device, comprise housing (1), blocking mechanism (2) and lockable mechanism (3), it is characterized in that: housing (1) adopts the plank frame with steel strand retaining clip plate, comprise mainboard (1-1), front baffle plate (1-2) and side board (1-3), be provided with upper and lower rolling guide wheel (1-7), to carry out rolling guiding to steel strand wires at the homonymy of mainboard (1-1), be provided with bearing pin movable span (1-5) in the bottom of mainboard (1-1), between upper and lower rolling guide wheel, be provided with fixing fixture block (1-4), blocking mechanism (2) comprises movable clip block (2-1), back-moving spring (2-2), clamping screw (2-3) and removable pin (2-4), movable clip block (2-1) is fixedly connected with one end of removable pin (2-4), the other end of removable pin (2-4) is flexibly connected with bearing pin movable span (1-5), match to be formed with fixing fixture block (1-4) and clamp strand structure, movable clip block (2-1) is connected with side board (1-3) by back-moving spring (2-2), form the resetting structure of movable clip block (2-1), movable clip block (2-1) is flexibly connected with side board (1-3) by clamping screw (2-3), form the limiting structure of movable clip block (2-1), lockable mechanism (3) is arranged on mainboard (1-1), slides under normal circumstances along steel strand wires, occurs to be locked on steel strand wires when operating personnel drops,
Fixing fixture block (1-4) and movable clip block (2-1) are respectively provided with circular arc type groove, and movable clip block (2-1) is arranged in opposite directions with the circular arc type groove surface of fixing fixture block (1-4), formed the stationary conduit clamping steel hinge line; The gap of 3-5mm together with being formed between movable clip block (2-1) with fixing fixture block (1-4), forms the passage that horizontal fixture crosses over catching device;
Front baffle plate (1-2) is in isosceles trapezoid shape, a lead (1-6), a part as guiding mechanism is respectively provided with at the two ends at its long end, front baffle plate (1-2) is fixedly connected with mainboard (1-1) by lead (1-6), and front baffle plate (1-2) is arranged on before movable clip block (2-1).
2. one according to claim 1 board-like aerial work steel strand type self-locking device, it is characterized in that: described lockable mechanism (3) is made up of safety buckle (3-1), sphenocephaly fork (3-2) and fork axle (3-3), the sphenocephaly of described sphenocephaly fork (3-2) is socketed in one end, the formation rotary type syndeton of fork axle (3-3), fork axle (3-3) is fixedly connected with mainboard (1-1), and fork axle (3-3) forms the moving fulcrum of sphenocephaly fork (3-2); Safety buckle (3-1) is arranged on the afterbody of sphenocephaly fork (3-2).
3. one according to claim 1 and 2 board-like aerial work steel strand type self-locking device, is characterized in that: described mainboard (1-1) is square plate.
4. one according to claim 2 board-like aerial work steel strand type self-locking device, is characterized in that: the clamping inclined-plane of described sphenocephaly fork (3-2) forms coarse inclined-plane by annular knurl, frosted process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310363343.XA CN103394175B (en) | 2013-08-19 | 2013-08-19 | A kind of board-like aerial work steel strand type self-locking device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310363343.XA CN103394175B (en) | 2013-08-19 | 2013-08-19 | A kind of board-like aerial work steel strand type self-locking device |
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| CN103394175A CN103394175A (en) | 2013-11-20 |
| CN103394175B true CN103394175B (en) | 2016-03-09 |
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| CN201310363343.XA Active CN103394175B (en) | 2013-08-19 | 2013-08-19 | A kind of board-like aerial work steel strand type self-locking device |
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| CN106955435B (en) * | 2017-04-07 | 2022-06-03 | 塞卡尔（北京）工业技术有限公司 | Opening structure of anti-falling device, steel wire rope self-locking device and opening and closing method |
| CN108853763B (en) * | 2018-08-07 | 2023-04-11 | 秦永仁 | High-rise emergency escape device and escape operation method |
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Family Cites Families (1)
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| US20120017400A1 (en) * | 2010-07-21 | 2012-01-26 | Tim James Ussher | Cord clamping device |
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| US3852943A (en) * | 1973-08-27 | 1974-12-10 | Meyer Ind Inc | Portable safety clamp |
| GB1435883A (en) * | 1974-02-01 | 1976-05-19 | Stafford L R | Line gripping device |
| US4034828A (en) * | 1975-04-14 | 1977-07-12 | Rose Manufacturing Company | Shock absorbing cable connector |
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Address after: 510670 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Applicant after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute Address before: 510670 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Applicant before: Guangdong Electric Power Design Institute of CEEC |
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