CN103394175A - Plate-type aerial work steel strand self-locking device - Google Patents
Plate-type aerial work steel strand self-locking device Download PDFInfo
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- CN103394175A CN103394175A CN201310363343XA CN201310363343A CN103394175A CN 103394175 A CN103394175 A CN 103394175A CN 201310363343X A CN201310363343X A CN 201310363343XA CN 201310363343 A CN201310363343 A CN 201310363343A CN 103394175 A CN103394175 A CN 103394175A
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- steel strand
- locking device
- strand wires
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Abstract
The invention discloses a plate-type aerial work steel strand self-locking device which comprises a casing, a closing mechanism and a locking mechanism, wherein the casing comprises a main board, a front baffle and a side baffle, and an upper rolling guide wheel and a lower rolling guide wheel are arranged on the same side of the main board and used for performing rolling guiding on steel strands; a pin roll moving hole is formed in the lower part of the main board, and a fixed clamping block is arranged between the upper rolling wheel and the lower rolling wheel; the closing mechanism comprises a moving clamping block, a reset spring, a locking bolt and a moving pin, and the moving clamping block is movably arranged in the pin roll moving hole through the moving pin; the moving clamping block is driven to move forward and backward and matched with the fixed clamping block, so that a steel strand clamping mechanism is formed; the reset spring is arranged between a moving clamping block and the side baffle; the moving clamping block is connected with the side baffle through the locking bolt, so that a limiting structure of the moving clamping block is formed; and the locking mechanism is arranged on the main board, and when an operator falls down, the operator is stopped on a steel strand. The plate-type aerial work steel strand self-locking device is simple in structure and convenient to operate; the steel strand abrasion caused by the self-locking device is reduced; and the self-locking device can move freely.
Description
Technical field
The present invention relates to a kind of board-like work high above the ground steel strand wires type self-locking device, what belong to the work high above the ground personnel puts the pendant safety guard.
Background technology
The shaft tower of China's high voltage circuit generally is comprised of cement pole, steel tower, is that circuit installation, operation, service work all need the frequent up and down of trackman shaft tower.The circuit homework personnel are in the process of climbing up and down shaft tower, because traditional safety belt can't overall process play a role, personnel are in a kind of state that loses protection sometimes, its P.P is depended on the state of mind of self, physical situation, technical skills and surrounding enviroment factor etc. fully, if the serious accident of personnel's high falling, just likely occur in certain link generation problem.In line accident when repairing, is often in the situation that the natural conditions such as strong wind, thunderstorm rain, hail, dense fog, sandstorm abominable carrying out relatively taked necessary safety measure, guarantee operating personnel's personal safety in addition.
Falling proof device commonly used is the rail type falling proof device at present, and this device is comprised 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.The rail type falling proof device uses the 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.
The steel strand wires falling proof device is compared and had following advantage with other two classes falling proof device: cost is low: be generally 1/10～1/5 of " G " type, T-shaped rail falling proof device; Construction and installation are convenient; Be not easy to occur the 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 to make steel strand wires and outer wall hold out against during self-locking and realize self-locking, therefore easily steel strand wires are produced wearing and tearing in running, a little less than translation rigidity fricting movement ability.And self-locking device needs to increase the hand additional move and make self-locking device pass through when the connector, and connector as shown in Figure 1, needs manually pull out connector to steel strand wires, until self-locking device by after again steel strand wires are retracted in the connector circle.This technology need increase operation people's operation bidirectional, will additionally consume operating personnel's muscle power.
Summary of the invention
Purpose of the present invention, in order to overcome prior art to the steel strand wires serious wear, and the deficiencies such as self-locking operation effort, a kind of board-like work high above the ground steel strand wires type self-locking device is provided, this self-locking device simple in structure, low price, easy to use, reduce the wearing and tearing of self-locking device to steel strand wires, improve the locomitivity of self-locking device, make self-locking device can smooth-goingly automatically pass through connector.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of board-like work high above the ground steel strand wires type self-locking device, comprise housing, blocking mechanism and lockable mechanism, it is characterized in that: housing adopts the plank frame with the steel strand retaining clip piece, comprise mainboard, front baffle plate and side board, the homonymy of mainboard be provided with upper and lower rolling guide wheel, with steel strand wires are carried out rolling guide to; Be provided with the bearing pin movable span in the bottom of mainboard, between upper and lower rolling guide wheel, fixedly fixture block be set; Blocking mechanism comprises movable clip block, back-moving spring, clamping screw and removable pin, movable clip block is fixedly connected with an end of removable pin, the other end of removable pin and bearing pin movable span are flexibly connected, match with fixing fixture block to form and clamp strand structure, movable clip block is connected, forms the resetting structure of movable clip block with side board by back-moving spring, movable clip block is flexibly connected, forms the limiting structure of movable clip block by clamping screw and side board; Lockable mechanism is arranged on mainboard, slides along steel strand wires under normal circumstances, occurs when the operating personnel drops to be locked on steel strand wires.
Further, described lockable mechanism consists of safety buckle, sphenocephaly fork and fork axle, the sphenocephaly of described sphenocephaly fork is socketed in an end, the formation rotary type syndeton of fork axle, and the fork axle is fixedly connected with mainboard, and the fork axle forms the moving fulcrum of sphenocephaly fork; Safety buckle is arranged on the afterbody of sphenocephaly fork.
Further: the front baffle plate is the isosceles trapezoid shape, respectively is provided with a lead at the two ends at its long end, as the part of guiding mechanism, and the front baffle plate is fixedly connected with mainboard by the guiding cylinder, and the front baffle plate is arranged on the front of movable clip block.
Further: fixedly fixture block and movable clip block respectively are provided with the circular arc type groove, movable clip block and fixedly the circular arc type groove surface of fixture block arrange in opposite directions the stationary conduit that form to clamp steel strand wires; The gap of movable clip block 3～5mm together with fixedly forming between fixture block, form horizontal fixture and cross over the passage of catching device.
Further: described mainboard is square plate.
Further: the clamping inclined-plane of described sphenocephaly fork is processed and is formed coarse inclined-plane by annular knurl, frosted.
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 again removable pin, make movable clip block and fixedly the distance between fixture block, greater than the steel strand wires diameter, then catching device is enclosed within on steel strand wires, back-moving spring resets movable clip block, 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 the linker, need not additionally, has increased operating personnel's movable freedom on steel strand wires; Simultaneously also avoided because of additional operation or operated the not firm event that meets accident of the wrong installation that causes.
2, the present invention arranges guide roller on mainboard, has reduced the wearing and tearing that cause self-locking device and steel strand wires because of relative motion, also is conducive to self-locking device simultaneously and moves on steel strand wires, reduces the influence of operating personnel to self-locking device.
3, the front baffle plate of self-locking device of the present invention is oblique structure, the guiding of realization to horizontal clamping fixture head, thereby make horizontal clamping fixture head can automatically fall the path clearance place and pass through passage, thereby self-locking device can upper and lower freedom by the horizontal fixture on steel strand wires, need not the outer add operation of self-locking device.
4, the lockable mechanism of self-locking device of the present invention adopts the sphenocephaly fork, and according to the wedge-shaped clamping principle, rapidly, braking distance is short in braking, and the cooperation lever principle has increased the pressure to inclined-plane, makes its frictional force be enough to off setting operation personnel's gravity.The frictional force that further increases inclined-plane is processed by annular knurl, frosted in the clamping inclined-plane of sphenocephaly fork.
Description of drawings
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.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
With reference to Fig. 2, Fig. 3 and a kind of board-like work high above the ground steel strand wires type self-locking device shown in Figure 4, comprise housing 1, blocking mechanism 2 and lockable mechanism 3, the plank frame that housing 1 adopts with the steel strand retaining clip piece, comprise 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, at the side upper-lower position of mainboard 1-1, is provided with the guide wheel installing hole, opposite side is provided with the 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 the guide wheel installing hole, with steel strand wires are carried out rolling guide to; Be fixed with fixedly fixture block 1-4 between upper and lower rolling guide wheel 1-7, fixedly fixture block 1-4 and mainboard 1-1 are structure as a whole, and fixedly fixture block 1-4 is provided with the circular arc type groove.Front baffle plate 1-2 is the isosceles trapezoid shape, respectively be provided with a lead 1-6 at the two ends at its long end, as the part of guiding mechanism, 1-6 is cylindrical for the 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 the movable clip block 2-1 front 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.
Described lockable mechanism 3 consists 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 an 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 is processed and formed coarse inclined-plane by annular knurl, frosted.
Adopt catching device operation principle of the present invention:
, when the circular arc type groove of movable clip block 2-1 and when fixedly the distance between the circular arc type groove of fixture block 1-4 is greater than the diameter of steel strand wires, can realize freely installing of steel strand wires.Can withstand movable clip block 2-1 by lock-screw after steel strand wires are installed, make steel strand wires be fixed in the circular arc type groove.The steel strand wires mounting groove of movable clip block 2-1 and the gap of fixedly leaving 4mm between fixture block 1-4 are to facilitate horizontal fixture to pass through, and laterally fixture is led by front baffle plate 1-2 by the gap conduit time.When the operation personnel upwards climb, self-locking device will make progress movable under the effect of safety rope, and when the operation personnel are movable downwards, self-locking device will fall under the effect of self gravitation.In case the operating personnel falls, the sphenocephaly fork will be pushed down steel strand wires, prevents operating personnel's tenesmus, prevents the generation of contingency.
When self-locking device is installed, first unscrew clamping screw 2-3, elimination stops movable clip block 2-1's, stirs removable pin 2-4, overcome the elastic force of back-moving spring 2-2, thereby make fixedly the distance between fixture block 1-4 and movable clip block 2-1 pull open, self-locking device is arranged on steel strand wires; Subsequently, movable clip block 2-1 replys under the elastic force effect of back-moving spring 2-2, the gap of 4mm together with fixedly fixture block 1-4 forms, this gap will be the passage that horizontal fixture is crossed over catching device subsequently, then tighten clamping screw 2-3, withstand the motion that movable clip block 2-1 limits it, self-locking device installs.
When self-locking device moved upward with respect to steel strand wires, namely safety buckle 3-1 was pulled upwardly, and the sphenocephaly of sphenocephaly fork 3-2, to lower swing, does not hinder the motion of self-locking device; When the operation personnel were movable downwards, self-locking device will automatic descending under the Action of Gravity Field of self, and at this moment, safety buckle 3-1 still upwards is pulled up, and had guaranteed that self-locking device is expedite to move downward.
In the place that horizontal fixture is arranged, at first laterally fixture can ride on lead 1-6, the operating personnel only need to affect self-locking device just can allow it slide into 4mm clearance opening place under movable clip block 2-1 through the safety rope of loins, and self-locking device just can pass through horizontal fixture smoothly like this.Self-locking device is descending runs into horizontal fixture also identical process, has guaranteed that provisional capital, self-locking device up and down is not subjected to the obstruction of horizontal fixture.
Claims (6)
1. board-like work high above the ground steel strand wires 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 the steel strand retaining clip piece, comprise mainboard (1-1), front baffle plate (1-2) and side board (1-3), the homonymy of mainboard (1-1) be provided with upper and lower rolling guide wheel (1-7), with steel strand wires are carried out rolling guide to, be provided with bearing pin movable span (1-5) in the bottom of mainboard (1-1), fixedly fixture block (1-4) is set between upper and lower rolling guide wheel, 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 an end of removable pin (2-4), the other end of removable pin (2-4) and bearing pin movable span (1-5) are flexibly connected, match with fixing fixture block (1-4) to form 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 by clamping screw (2-3) and side board (1-3), form the limiting structure of movable clip block (2-1), lockable mechanism (3) is arranged on mainboard (1-1), slides along steel strand wires under normal circumstances, occurs when the operating personnel drops to be locked on steel strand wires.
2. a kind of board-like work high above the ground steel strand wires type self-locking device according to claim 1, it is characterized in that: described lockable mechanism (3) consists 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 an 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. a kind of board-like work high above the ground steel strand wires type self-locking device according to claim 1 and 2, it is characterized in that: front baffle plate (1-2) is the isosceles trapezoid shape, respectively be provided with a lead (1-6) at the two ends at its long end, as the part of guiding mechanism, front baffle plate (1-2) is fixedly connected with mainboard (1-1) by guiding cylinder (1-6), and front baffle plate (1-2) is arranged on the front of movable clip block (2-1).
4. a kind of board-like work high above the ground steel strand wires type self-locking device according to claim 1 and 2, it is characterized in that: fixedly fixture block (1-4) and movable clip block (2-1) respectively are provided with the circular arc type groove, and movable clip block (2-1) arranges, forms with the fixing circular arc type groove surface of fixture block (1-4) stationary conduit that clamps steel strand wires in opposite directions; The gap of movable clip block (2-1) 3～5mm together with fixedly forming between fixture block (1-4), form horizontal fixture and cross over the passage of catching device.
5. a kind of board-like work high above the ground steel strand wires type self-locking device according to claim 1 and 2, it is characterized in that: described mainboard (1-1) is square plate.
6. a kind of board-like work high above the ground steel strand wires type self-locking device according to claim 1 is characterized in that: the clamping inclined-plane of described sphenocephaly fork (3-2) is processed and is formed coarse inclined-plane by annular knurl, frosted.
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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
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| CN103394175A true CN103394175A (en) | 2013-11-20 |
| CN103394175B 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106955435A (en) * | 2017-04-07 | 2017-07-18 | 塞卡尔（北京）工业技术有限公司 | A kind of Unclosing structure of falling proof device, steel wire rope self-locking device and method of switching |
| CN108853763A (en) * | 2018-08-07 | 2018-11-23 | 秦永仁 | High building Lifesaving device and escape operating method |
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| CN203389246U (en) * | 2013-08-19 | 2014-01-15 | 中国能源建设集团广东省电力设计研究院 | Plate type overhead-working steel strand type self-locking 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106955435A (en) * | 2017-04-07 | 2017-07-18 | 塞卡尔（北京）工业技术有限公司 | A kind of Unclosing structure of falling proof device, steel wire rope self-locking device and method of switching |
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| CN108853763A (en) * | 2018-08-07 | 2018-11-23 | 秦永仁 | High building Lifesaving device and escape operating 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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| Publication number | Publication date |
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| CN103394175B (en) | 2016-03-09 |
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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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