CN110215627A - A kind of fall arrest track self-locking device - Google Patents

A kind of fall arrest track self-locking device Download PDF

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Publication number
CN110215627A
CN110215627A CN201910504343.4A CN201910504343A CN110215627A CN 110215627 A CN110215627 A CN 110215627A CN 201910504343 A CN201910504343 A CN 201910504343A CN 110215627 A CN110215627 A CN 110215627A
Authority
CN
China
Prior art keywords
main body
side main
fall arrest
connecting shaft
locking device
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.)
Pending
Application number
CN201910504343.4A
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Chinese (zh)
Inventor
吴建宁
杨佳睿
卫晓东
梅佳
周立民
李学斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Guowang Fuda Technology Development Co Ltd
Original Assignee
Beijing Guowang Fuda Technology Development Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Guowang Fuda Technology Development Co Ltd filed Critical Beijing Guowang Fuda Technology Development Co Ltd
Priority to CN201910504343.4A priority Critical patent/CN110215627A/en
Publication of CN110215627A publication Critical patent/CN110215627A/en
Priority to PCT/CN2020/095432 priority patent/WO2020249022A1/en
Priority to SG11202107569TA priority patent/SG11202107569TA/en
Priority to ZA2021/04957A priority patent/ZA202104957B/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0043Lifelines, lanyards, and anchors therefore
    • A62B35/0062Rail-form lifelines for permanent installation

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Lowering Means (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

The invention discloses a kind of fall arrest track self-locking devices, including shell (1), spring (2), swingle (3) and the first connecting shaft (4), shell (1) contains affixed side main body (11) and opening side main body (12), affixed side main body (11) is detachably connected with opening side main body (12), the both ends of first connecting shaft (4) are connect with affixed side main body (11) and opening side main body (12) respectively, one end of swingle (3) is located in shell (1), the other end of swingle (3) is located at shell (1) outside, spring (2) can make swingle (3) with the first connecting shaft (4) for axis rotation, and abut one end of swingle (3) with the wing plate of fall arrest track (20) positive (21).The fall arrest track self-locking device and its guide rail size are adapted, and solve the problem of to have some setbacks applied to the easy clamping stagnation operation of the self-locking device of fall arrest track at present.

Description

A kind of fall arrest track self-locking device
Technical field
The present invention relates to transmission of electricity ancillary equipment field, particularly a kind of fall arrest track self-locking devices.
Background technique
In recent years, with power grid construction deepen constantly and perfect, the continuous improvement of transmission voltage grade, overhead transmission line The construction mileage on road is more and more, and the repair and maintenance work of route is also more and more heavier.Due to the operational safety pair of transmission line of electricity The development of society is particularly important, and the regular maintenance of transmission tower is the powerful guarantee of the normal even running of transmission line of electricity.It is anti- Drop device is the safety precautions for shaft tower high altitude operation personnel in climbing, movement and operation process, is especially being made Industry personnel can protect the safety device of operating personnel when falling.
Existing shaft tower falling proof device usually mainly includes fall arrest track and self-locking device, and wherein self-locking device cooperation rigidity is anti- The track that falls uses.The section form for the rigid fall arrest track installed on shaft tower at present is mainly T-shape (i.e. such as Fig. 1 institute Show), since the problems such as processing and installation, causes phenomena such as live falling proof device is easy to appear clamping stagnation in use, shadow Ring the using effect of falling proof device.Structure is complicated for existing self-locking device simultaneously, processes cumbersome, self-locking device disassembly inconvenience: no It can be from guide rail middle part bit stripping, the problems such as can only being dismantled from rail end.
Summary of the invention
In order to solve the problems, such as that existing fall-preventing self-locking device disassembly is inconvenient, the present invention provides a kind of fall arrest track use Self-locking device, the fall arrest track self-locking device and fall arrest track size are adapted, the guiding contacted with fall arrest raceway surface Structure is all made of rolling friction, to reduce the frictional force of self-locking device Yu fall arrest interorbital, improves self-locking device in fall arrest track On passability;Self-locking device structure uses openable structure, can open from the intermediate position of the non-end of fall arrest track, work as chance To self-locking device when there is stuck phenomenon on fall arrest track, convenient for removing self-locking device from fall arrest track, and cross out It is installed at the fall arrest track position of existing stuck phenomenon.
The technical solution adopted by the present invention to solve the technical problems is: a kind of fall arrest track self-locking device, including shell Body, spring, swingle and the first connecting shaft, shell include the through slot for grafting fall arrest track, and shell contains fixation Side main body and opening side main body, affixed side main body are detachably connected with opening side main body, and the both ends of the first connecting shaft are respectively and solid Determine side main body to connect with opening side main body, one end of swingle is located in shell, and the other end of swingle is located at outside shell, spring Swingle can be made to rotate with the first connecting shaft axis, and abut one end of swingle with the wing plate front of fall arrest track.
Affixed side main body contains sequentially connected first fixed plate and the second fixed plate, the first fixed plate and opening side main body In parallel, the second fixed plate is between the first fixed plate and opening side main body.
It is equipped with spring in second fixed plate, stepped hole is installed, is fixed with spring catch in one end of spring installation stepped hole One end of piece, spring is connect with spring stop piece, and the other end of spring is connect with swingle.
First connecting shaft contains sequentially connected bow-shaped section, major diameter section and path section, and the outer diameter of bow-shaped section is greater than major diameter section Outer diameter, the outer diameter of major diameter section is greater than the outer diameter of path section.
The bow-shaped section and major diameter section of first connecting shaft and the first fixed plate are interference fitted, and the path section of the first connecting shaft passes through Swingle.
Opening side main body is connected with stop screw, and the end of path section is plugged in opening side main body, and stop screw can Prevent affixed side main body from separating with opening side main body.
The end of path section is equipped with limiting groove, when the tail end of stop screw is inserted into the limiting groove of the first connecting shaft, Affixed side main body and opening side main body, which are in, is connected and fixed state;When the limit that the tail end of stop screw is detached from the first connecting shaft is recessed When slot, affixed side main body can be separated with opening side main body.
The fall arrest track self-locking device further includes the second connecting shaft, and the second connecting shaft is parallel with the first connecting shaft, and second Mirror image, the both ends of the second connecting shaft are connect with affixed side main body and opening side main body connecting shaft respectively each other with the first connecting shaft.
The fall arrest track self-locking device further includes inside directive wheel, outside directive wheel and side guide wheel, inside guiding Wheel can roll on the wing plate front of fall arrest track, and outside directive wheel can roll on the wing plate back side of fall arrest track Dynamic, side guide wheel can roll on the wing plate side of fall arrest track.
Outside directive wheel is in truncated cone structure, and the outer diameter of the path section of outside directive wheel is greater than the outer of inside directive wheel Diameter, outside directive wheel contain interior wheel body and wear-resistant material layer, and wear-resistant material layer is sheathed on that lubrication groove is external, and wear-resistant material layer passes through outer Side-lens and sunk screw are connect with interior wheel body.
The beneficial effects of the present invention are:
1, fall arrest track self-locking device has a detachability, it is convenient guide rail medium position cannot by when, detachably, Surmount obstacles a position, continues to install and use.
2, solve the problems, such as that self-locking device uses easy clamping stagnation on transmission line of electricity fall arrest track.
3, solve the problems, such as that self-locking device integration overall processing difficulty is big.
4, simple and practical, it is run on transmission line of electricity fall arrest track smooth.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.
Fig. 1 is the schematic diagram of existing fall arrest track.
Fig. 2 is the top perspective schematic diagram of fall arrest track self-locking device of the present invention.
Fig. 3 is that fall arrest track self-locking device of the present invention looks up stereoscopic schematic diagram.
Fig. 4 is the use state diagram of fall arrest track self-locking device of the present invention.
Fig. 5 is the cross-sectional view of fall arrest track self-locking device of the present invention.
Fig. 6 is the stereoscopic schematic diagram of affixed side main body.
Fig. 7 is the three-dimensional cutaway view of affixed side main body.
Fig. 8 is the stereoscopic schematic diagram of opening side main body.
Fig. 9 is the schematic diagram that affixed side main body and opening side main body are in connection status.
Figure 10 is the schematic diagram that affixed side main body and opening side main body are in discrete state.
Figure 11 is the main view of the first connecting shaft.
Figure 12 is the connection schematic diagram of the first connecting shaft, opening side main body and stop screw.
Figure 13 is the structural schematic diagram of outside directive wheel.
Figure 14 is the schematic diagram of swingle.
1, shell;2, spring;3, swingle;4, the first connecting shaft;5, spring stop piece;6, stop screw;7, the second connection Axis;8, inside directive wheel;9, outside directive wheel;10, side guide wheel;11, affixed side main body;12, opening side main body;13, One fixed plate;14, the second fixed plate;15, through slot;
20, fall arrest track;21, wing plate front;22, the wing plate back side;23, wing plate side;
41, bow-shaped section;42, major diameter section;43, path section;44, limiting groove;
91, interior wheel body;92, wear-resistant material layer;93, outer side-lens;94, sunk screw.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of fall arrest track self-locking device, including shell 1, spring 2, swingle 3 and the first connecting shaft 4, shell 1 include There is the through slot 15 for grafting fall arrest track 20, shell 1 contains affixed side main body 11 and opening side main body 12, affixed side master Body 11 is detachably connected with opening side main body 12, the both ends of the first connecting shaft 4 respectively with affixed side main body 11 and opening side main body 12 connections, one end of swingle 3 are located in shell 1, and the other end of swingle 3 is located at outside shell 1, and the first connecting shaft 4 passes through rotation Bull stick 3, spring 2 can make swingle 3 with the rotation of 4 axis of the first connecting shaft, and make one end and the fall arrest track 20 of swingle 3 Wing plate front 21 abut, as shown in Figures 1 to 5.
The section for the fall arrest track 20 that the fall arrest track self-locking device is suitable for is T-type or I-shaped.For example, anti- Fall track 20 section be T-type, the fall arrest track 20 include wing plate and bottom plate, wing plate contain wing plate front 21, wing plate back Face 22 and wing plate side 23, the fall arrest track are generally in self-locking state with self-locking device, i.e. the fall arrest track self-locking device When being mounted on fall arrest track 20, spring 2 provides pressure to swingle 3, make one end of swingle 3 always with fall arrest track 20 wing plate front 21 abuts, to prevent the fall arrest track self-locking device from mobile relative to fall arrest track 20.
In the present embodiment, it is detachably connected in order to facilitate the installation of with processing, affixed side main body 11 with opening side main body 12. Shell 1 is split type structure, and the section of shell 1 is substantially in concave shape, and affixed side main body 11 is fixed containing sequentially connected first Plate 13 and the second fixed plate 14, the first fixed plate 13 is parallel with opening side main body 12, and the second fixed plate 14 is located at the first fixed plate Between 13 and opening side main body 12, i.e. the first fixed plate 13, the second fixed plate 14 and opening side main body 12 are sequentially connected.First connects One end of spindle 4 is connect with the first fixed plate 13, and the other end of the first connecting shaft 4 is connect with opening side main body 12, such as Fig. 6 to figure Shown in 8.
In the present embodiment, it is equipped with spring in the second fixed plate 14 and stepped hole is installed, which installs one end of stepped hole It is inside fixed with spring stop piece 5, one end of spring 2 is abutted with spring stop piece 5, and the other end of spring 2 is abutted with swingle 3.First Connecting shaft 4 contains sequentially connected bow-shaped section 41, major diameter section 42 and path section 43, and the outer diameter of bow-shaped section 41 is greater than major diameter section 42 Outer diameter, the outer diameter of major diameter section 42 are greater than the outer diameter of path section 43.
Wherein, the section of bow-shaped section 41 is arch, and the section of major diameter section 42 and path section 43 is circle.First connecting shaft 4 bow-shaped section 41 and major diameter section 42 and the first fixed plate 13 are interference fitted, and the path section 43 of the first connecting shaft 4 passes through swingle 3.
In the present embodiment, it is detachably connected, beats to realize affixed side main body 11 easily with opening side main body 12 It opens side main body 12 and is connected with stop screw 6, is i.e. stop screw 6 is threadedly coupled with opening side main body 12.It inserts the end of path section 43 It is connected in opening side main body 12, stop screw 6 can prevent affixed side main body 11 from separating with opening side main body 12.
Specifically, the end of path section 43 is equipped with limiting groove 44, when the tail end of stop screw 6 is inserted into the first connecting shaft 4 Limiting groove 44 when, affixed side main body 11 and opening side main body 12 are in the state that is connected and fixed, i.e., affixed side main body 11 and beat Opening can not separate between side main body 12, as shown in Fig. 9, Figure 11 and Figure 12;When the tail end of stop screw 6 is detached from the first connecting shaft When 4 limiting groove 44, affixed side main body 11 can be separated with opening side main body 12, i.e. affixed side main body 11 and opening side main body 12 are in discrete state, as shown in Figure 10, Figure 11 and Figure 12.
When affixed side main body 11 and opening side main body 12 are in discrete state shown in Fig. 10, fall arrest track 20 can It is easily plugged in the through slot 15 of the fall arrest track self-locking device;When affixed side main body 11 and opening side main body 12 are in When connection status shown in Fig. 9, the fall arrest track self-locking device can be prevented to be detached from fall arrest track 20.
In the present embodiment, which further includes the second connecting shaft 7, the second connecting shaft 7 and first Connecting shaft 4 is parallel, the second connecting shaft 7 and the first connecting shaft 4 mirror image each other, the both ends of the second connecting shaft 7 respectively with affixed side master Body 11 and opening side main body 12 connect.Second connecting shaft 7 and the connection type of affixed side main body 11 and the first connecting shaft 4 and fixation The connection type of side main body 11 is identical, the connection type and the first connecting shaft 4 of the second connecting shaft 7 and opening side main body 12 with The connection type of opening side main body 12 is identical.The second connecting shaft 7, which is arranged, can prevent affixed side main body 11 and opening side master Body 12 produces relative rotation when being in discrete state.
In the present embodiment, which further includes inside directive wheel 8, outside directive wheel 9 and side Directive wheel 10, inside directive wheel 8 can roll on the wing plate front 21 of fall arrest track 20, and outside directive wheel 9 can be anti- Fall track 20 the wing plate back side 22 on roll, side guide wheel 10 can roll on the wing plate side 23 of fall arrest track 20 It is dynamic.
In the present embodiment, outside directive wheel 9 is in truncated cone structure, and the outer diameter of the path section of outside directive wheel 9 is big In the outer diameter of inside directive wheel 8, outside directive wheel 9 contains interior wheel body 91 and wear-resistant material layer 92, and wear-resistant material layer 92 is sheathed on Outside interior wheel body 91, wear-resistant material layer 92 is detachably connected by outer side-lens 93 and sunk screw 94 with interior wheel body 91, such as Figure 13 It is shown.
It is described below and the fall arrest track is further described with self-locking device.
Affixed side main body 11 and opening side main body 12 are the main structure body of self-locking device, affixed side main body 11 and opening side main body It is that unsymmetric structure, affixed side main body 11 and opening side main body 12 are tied as the mounting structure of other structures and carrying between 12 Structure, separate structure is easy to process relative to integral structure, can effectively reduce processing cost.Spring 2 is fixed on affixed side main body 11 It is interior, one end of swingle 3 can be kept to the pressing force in the wing plate front 21 of fall arrest track 20, be machined in affixed side main body 11 The ladder mounting hole of spring is installed, self-locking device spring stop piece 5, spring stop piece 5 and ladder mounting hole are installed at ladder mounting hole Between using interference fit, spring 2 is limited, and processing cost can be reduced.The other end of swingle 3 is connected with U-shaped ring. Pull U-shaped ring that can release one end of swingle 3 to the pressing force in the wing plate front 21 of fall arrest track 20, at this point, this is anti-fall Falling track self-locking device can be mobile relative to fall arrest track 20.
Opening side main body 12 can move the distance of 8mm-13mm, i.e. opening side master in Fig. 9 relative to affixed side main body 11 Body 12, which moves right, becomes state shown in Fig. 10 after 8mm-13mm.After the fall arrest track is opened with self-locking device, outside guiding Wheel 9 can be moved out the wing plate back side 22 of fall arrest track to unilateral side, which can be from fall arrest It dismantles or installs on track 20.When to guarantee that opening side main body 12 is mobile relative to fixed side main body 11, movement is not rotated, Affixed side main body and connecting side main body are attached using two connecting shafts, and play the role of mobile guide, while to body Integral strength plays booster action.
It is all made of when relative motion between inside directive wheel 8, outside directive wheel 9 and side guide wheel 10 and fall arrest track 20 Rolling friction, inside directive wheel 8, outside directive wheel 9 and side guide wheel 10 are all made of the structure shape of " directive wheel+central axis " Formula, directive wheel can be rotated around central axis, and there are gaps appropriate between directive wheel and rail contact face, self-locking in guarantee On the basis of device safety, self-locking device passability in orbit is improved.
Inside directive wheel 8 and outside directive wheel 9 form clamping action to the wing plate of fall arrest track 20 together;Work as self-locking device When in non-lockup state, inside directive wheel 8 is in contact with the wing plate front 21 of fall arrest track 20 and relative rolling occurs, when It falls generation, when self-locking device is in lockup state, the seal face of swingle 3 generates pressing force to the wing plate front 21 of track, together When inside directive wheel 8 and the wing plate front 21 of track disengage;Since inside directive wheel 8 only has rolling guiding role, outside Side directive wheel 9 must also carry the impact force generated when falling and limit self-locking device anti-while having rolling guiding role The position fallen on track, therefore the outer diameter of outside directive wheel 9 is greater than the outer diameter of inside directive wheel 8, and also more two groups of its quantity.
Outside directive wheel 9 in truncated cone can preferably coincide guide rail the wing plate back side 22 shape, with increase and rail The contact area at the road wing plate back side 22.It is easy to wear when outside directive wheel 9 and track iron and steel material quality rub, it need to often replace, therefore will The structure is designed as easily opening replacement structure.The quantity of inside directive wheel 8 is 4, the quantity of outside directive wheel 9 is 6, side The quantity of directive wheel 10 is 4.
As shown in figure 14, the relative position that swingle 3 passes through rational design rotation center, load center and seal face And shape and structure, it can effectively carry shock of a fall power and have higher sensitive locking, when operating personnel falls When falling, human body fall's shock loading acts on load center by U-shaped ring, and spill spin block is pulled to be rotated about the center of rotation, in turn Seal face compresses fall arrest track and locks in orbit, and load of falling is transmitted on body by spill spin block and connecting shaft, prevents Only operating personnel falls, and ensures operating personnel's safety.
The above, only specific embodiments of the present invention cannot limit the range that invention is implemented with it, so it is equivalent The displacement of component, or according to equivalent variations made by the invention patent protection scope and modification, should all still fall within what this patent was covered Scope.In addition, between technical characteristic and technical characteristic in the present invention, technical characteristic and technical solution, technical solution and technology Use can be freely combined between scheme.

Claims (10)

1. a kind of fall arrest track self-locking device, which is characterized in that the fall arrest track self-locking device includes shell (1), spring (2), swingle (3) and the first connecting shaft (4), shell (1) include the through slot (15) for grafting fall arrest track (20), Shell (1) contains affixed side main body (11) and opening side main body (12), and affixed side main body (11) and opening side main body (12) are removable Connection is unloaded, the both ends of the first connecting shaft (4) are connect with affixed side main body (11) and opening side main body (12) respectively, swingle (3) One end be located in shell (1), the other end of swingle (3) is located at shell (1) outside, and spring (2) can make swingle (3) with the One connecting shaft (4) is axis rotation, and abuts one end of swingle (3) with the wing plate of fall arrest track (20) positive (21).
2. fall arrest track self-locking device according to claim 1, which is characterized in that affixed side main body (11) is containing successively The first fixed plate (13) and the second fixed plate (14) of connection, the first fixed plate (13) is parallel with opening side main body (12), and second Fixed plate (14) is between the first fixed plate (13) and opening side main body (12).
3. fall arrest track self-locking device according to claim 2, which is characterized in that be equipped with bullet in the second fixed plate (14) Spring installs stepped hole, is fixed with spring stop piece (5) in one end of spring installation stepped hole, one end of spring (2) and spring catch Piece (5) connection, the other end of spring (2) are connect with swingle (3).
4. fall arrest track self-locking device according to claim 2, which is characterized in that the first connecting shaft (4) is containing successively Bow-shaped section (41), major diameter section (42) and the path section (43) of connection, the outer diameter of bow-shaped section (41) are greater than the outer diameter of major diameter section (42), The outer diameter of major diameter section (42) is greater than the outer diameter of path section (43).
5. fall arrest track self-locking device according to claim 4, which is characterized in that the bow-shaped section of the first connecting shaft (4) (41) it is interference fitted with major diameter section (42) with the first fixed plate (13), the path section (43) of the first connecting shaft (4) passes through swingle (3)。
6. fall arrest track self-locking device according to claim 5, which is characterized in that opening side main body (12) connection is limited Position screw (6), the end of path section (43) are plugged in opening side main body (12), and stop screw (6) can prevent affixed side master Body (11) is separated with opening side main body (12).
7. fall arrest track self-locking device according to claim 6, which is characterized in that the end of path section (43) is equipped with limit Position groove (44), when limiting groove (44) of the tail end of stop screw (6) insertion the first connecting shaft (4), affixed side main body (11) it is in opening side main body (12) and is connected and fixed state;When the tail end of stop screw (6) is detached from the limit of the first connecting shaft (4) When groove (44) of position, affixed side main body (11) can be separated with opening side main body (12).
8. fall arrest track self-locking device according to claim 1, which is characterized in that the fall arrest track with self-locking device also Including the second connecting shaft (7), the second connecting shaft (7) is parallel with the first connecting shaft (4), the second connecting shaft (7) and the first connecting shaft (4) mirror image, the both ends of the second connecting shaft (7) are connect with affixed side main body (11) and opening side main body (12) respectively each other.
9. fall arrest track self-locking device according to claim 1, which is characterized in that the fall arrest track with self-locking device also Including inside directive wheel (8), outside directive wheel (9) and side guide wheel (10), inside directive wheel (8) can be in fall arrest track (20) wing plate rolls on positive (21), and outside directive wheel (9) can roll on the wing plate back side (22) of fall arrest track (20) Dynamic, side guide wheel (10) can roll on the wing plate side (23) of fall arrest track (20).
10. fall arrest track self-locking device according to claim 9, which is characterized in that outside directive wheel (9) is in circular cone Platform shape structure, the outer diameter of the path section of outside directive wheel (9) are greater than the outer diameter of inside directive wheel (8), and outside directive wheel (9) contains Interior wheel body (91) and wear-resistant material layer (92), wear-resistant material layer (92) are sheathed on interior wheel body (91) outside, and wear-resistant material layer (92) is logical It crosses outer side-lens (93) and sunk screw (94) is connect with interior wheel body (91).
CN201910504343.4A 2019-06-12 2019-06-12 A kind of fall arrest track self-locking device Pending CN110215627A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201910504343.4A CN110215627A (en) 2019-06-12 2019-06-12 A kind of fall arrest track self-locking device
PCT/CN2020/095432 WO2020249022A1 (en) 2019-06-12 2020-06-10 Self-locking device for anti-falling rail
SG11202107569TA SG11202107569TA (en) 2019-06-12 2020-06-10 Self-locking device for anti-falling rail
ZA2021/04957A ZA202104957B (en) 2019-06-12 2021-07-14 Self-locking device for anti-falling rail

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910504343.4A CN110215627A (en) 2019-06-12 2019-06-12 A kind of fall arrest track self-locking device

Publications (1)

Publication Number Publication Date
CN110215627A true CN110215627A (en) 2019-09-10

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CN201910504343.4A Pending CN110215627A (en) 2019-06-12 2019-06-12 A kind of fall arrest track self-locking device

Country Status (4)

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CN (1) CN110215627A (en)
SG (1) SG11202107569TA (en)
WO (1) WO2020249022A1 (en)
ZA (1) ZA202104957B (en)

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WO2020249022A1 (en) * 2019-06-12 2020-12-17 北京国网富达科技发展有限责任公司 Self-locking device for anti-falling rail
CN114404833A (en) * 2022-03-01 2022-04-29 广东欲丰电器制造有限公司 Guide rail type high-altitude falling protector and working method thereof
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Publication number Priority date Publication date Assignee Title
WO2020249022A1 (en) * 2019-06-12 2020-12-17 北京国网富达科技发展有限责任公司 Self-locking device for anti-falling rail
CN114404833A (en) * 2022-03-01 2022-04-29 广东欲丰电器制造有限公司 Guide rail type high-altitude falling protector and working method thereof
CN115450455A (en) * 2022-10-13 2022-12-09 中国核工业中原建设有限公司 Anti-falling equipment for construction of constructional steel structure engineering

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