CN112190846A - Handheld tower falling protector for overhead transmission line - Google Patents
Handheld tower falling protector for overhead transmission line Download PDFInfo
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- CN112190846A CN112190846A CN202010883308.0A CN202010883308A CN112190846A CN 112190846 A CN112190846 A CN 112190846A CN 202010883308 A CN202010883308 A CN 202010883308A CN 112190846 A CN112190846 A CN 112190846A
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- locking block
- fixed
- tower
- block
- handle
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
- A62B35/0043—Lifelines, lanyards, and anchors therefore
- A62B35/0075—Details of ropes or similar equipment, e.g. between the secured person and the lifeline or anchor
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
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Abstract
The invention discloses a handheld tower falling protector for an overhead transmission line, which is applied to a T-shaped tower material of the overhead transmission line tower and comprises a fixed block, a fixed handle, a movable handle, a locking block and a hanging rope hook, wherein the fixed block is provided with a clamping groove with a concave-shaped cross section; when the locking block is not pulled downwards by external force or a hanging rope hook, the locking block extends into the clamping groove and is matched with the opposite side wall of the clamping groove to clamp the tower material; when the movable handle and the fixed handle are close, the locking block and the side wall of the clamping groove loosen the tower material. The advantages are that: can directly use on the shaft tower, the personnel only need carry one set of safeties when patrolling the line can to directly can take off the safety hook after finishing using, consequently also be convenient for the routine maintenance, difficult emergence card hinders the phenomenon.
Description
Technical Field
The invention relates to a handheld tower falling protector for an overhead transmission line.
Background
In the operation, maintenance and overhaul operations of overhead transmission lines, personal safety protection measures during the process of ascending and descending the tower and moving the tower on the tower by workers are very important, and personal safety accidents can be caused once safety protection is lost or safety protection equipment fails in the process of ascending operations. At present, guide rail type anti-falling devices are mostly installed aiming at overhead transmission line pole towers high-altitude falling prevention measures in China. The anti-falling self-locking device mainly comprises a guide rail, a direction converter, an anti-falling self-locking device, a safety rope, a fastener, a connecting hardware fitting and the like. Wherein the guide rail type comprises a C type (groove type), a T type (I type) and the like; the guide rail, the steering gear and other components are fixedly arranged on the tower body and the cross arm of the tower through connecting pieces.
When an operator carries out high-place transfer operation on a tower, the anti-falling self-locking device and the safety belt are carried along, and the anti-falling self-locking device is connected with the safety belt on the body of the operator through the safety lock catch and the connecting rope. The falling protector can be driven to move up and down after being placed into the guide rail with the corresponding specification by an operator, and the falling protector can firmly lock the operator on the guide rail to prevent the operator from falling to cause casualty accidents if the high-altitude operator falls due to the falling.
Through long-term use tests of the guide rail type anti-falling self-locking device, the following problems are found to exist:
1) the anti-falling devices of various manufacturers have different structural types and specifications, so that a plurality of sets of anti-falling devices need to be worn when people walk on the line, and inconvenience and danger are brought to high-altitude operation due to more tools, such as long-short double-safety belts, anti-falling devices, construction tools, ropes and the like.
2) The guide rail and the steering gear are poorly designed and rusted, so that the falling protector is blocked at the joint of the steering gear and the rail and at a bending position.
3) The falling protector of the rail type falling protection device is heavy in weight, and if a plurality of falling protectors are carried, the burden is large, and the length of the safety belt matched with a certain manufacturer is inconvenient to adjust;
4) some anti-theft devices are imperfect, are not provided with anti-theft bolts, and are easy to damage and be stolen.
5) The steel pipe tower is generally applied to many times of downtown circuit that puts up together, and there is the problem of having a power failure difficulty in the installation anti-falling device, and electrified installation has great safety risk, if installation rail mounted anti-falling device, then the installation accessory is more, and installation work load is big.
6) The maintenance and test experience of the anti-falling device is insufficient, and professional maintenance is lacked.
The main reason for the comprehensive analysis is that the guide rail type anti-falling self-locking device must be used together with a matched iron tower guide rail, and currently, the installation of the guide rail on all existing iron towers cannot be realized, the types of the installed guide rails are different, and the guide rail type anti-falling self-locking device cannot be used on each base iron tower.
Disclosure of Invention
The invention aims to provide a handheld tower falling protector for an overhead transmission line, which can effectively solve the problem that a guide rail type falling protector needs to be used in a matched guide rail and the safety problem when an operator works up and down on the existing part without installing a guide rail tower.
In order to solve the technical problems, the invention is realized by the following technical scheme: a handheld tower falling protector for an overhead transmission line is applied to tower materials of the overhead transmission line tower and comprises a fixed block, a fixed handle, a movable handle, a locking block and a rope hook, wherein the fixed block is provided with a clamping groove with a concave-shaped cross section, the fixed handle is fixed on the side surface of the fixed block, the locking block is rotatably arranged on the fixed block below the fixed handle, the movable handle and the rope hook are both fixed on the locking block, and the fixed block is also provided with a through groove which enables the locking block to extend into the clamping groove;
when the locking block is not pulled downwards by external force or a hanging rope hook, the locking block extends into the clamping groove and is matched with the opposite side wall of the clamping groove to clamp the tower material; when the movable handle and the fixed handle are close, the locking block and the side wall of the clamping groove loosen the tower material.
Preferably, the latch segment is the cylinder of oval-shaped cross section, and the line of two focuses on the latch segment cross section is parallel with the length direction of draw-in groove, the first half of latch segment even has the pivot, the axis of pivot is perpendicular with the line of two focuses of latch segment, can ensure that latch segment and tower material are line contact, increase contact surface, and the direction of rotation is perpendicular with chucking application of force direction simultaneously, more does benefit to personnel's operation.
Preferably, the fixed block below the fixed handle is provided with two parallel supporting blocks, the locking block is located between the two supporting blocks, two ends of the rotating shaft are respectively connected with one supporting block, the locking block is rotatably supported through the supporting blocks, and the locking block is convenient to set.
Preferably, the rotating shaft is further sleeved with a torsion spring, one end of the torsion spring is fixedly connected with one of the supporting blocks, the other end of the torsion spring is fixedly connected with the locking block, and the locking block can be enabled to return to a locking position when external force is removed by utilizing the torsion spring, so that accidents are prevented.
Preferably, the rope hook is positioned below the movable handle, and the operation of the movable handle cannot be influenced when the safety rope is hung in the rope hook.
Preferably, activity handle fixed connection is in the first half of latch segment, the string rope colludes fixed connection in the lower half of latch segment, and the activity handle is fixed in the first half of latch segment, reduces and the pivot between the resistance arm when operating the activity handle, colludes the rope simultaneously and sets up in the lower half of latch segment, increases the arm of force that the string rope colluded, obtains bigger clamp force.
Preferably, the fixed handle is an arc-shaped handle, and the bottom end of the fixed handle is fixed on the fixed block; the movable handle is also an arc-shaped handle, and the bottom end of the movable handle is fixed on the locking block; the concave surfaces of the fixed handle and the movable handle are upward, the arc-shaped handle is more suitable for being operated by hands, the contact area of the arc-shaped handle and the hands is increased, and the discomfort of the hands during operation is reduced.
Preferably, the hanging rope hook comprises a connecting block, a hanging hole is formed in the connecting block, and the safety rope is hung and connected more firmly through a direct hole.
Compared with the prior art, the invention has the advantages that: the tower material of the tower can be clamped into the clamping groove, the tower can be directly used on the tower without the limitation of whether the guide rail is arranged on the tower or not, and the clamping groove is in a concave shape, therefore, the device is not limited by the width of the tower material, can be adapted to various tower materials with different sizes, and only needs to carry one set of safety device when a person patrols the line, and the falling protector can be directly taken down and taken away after use, thereby being convenient for daily maintenance, being not easy to generate blocking phenomenon and being not easy to lose or damage, and by utilizing the matching of the locking block and the side wall of the clamping groove, when the tower material is clamped by the interaction of the downward pulling force, the anti-falling function is realized, when the personnel need to climb upwards, the locking block rotates by gripping the fixed handle and the movable handle, thereby make the increase of interval between latch segment and the draw-in groove lateral wall, loosen the tower material, convenient operation is swift, even novice also can be skilled operation very fast.
Drawings
FIG. 1 is a front view of a handheld tower safety hook for an overhead transmission line according to the invention;
FIG. 2 is a right side view of the hand-held tower fall arrester for an overhead transmission line of the present invention;
fig. 3 is a top view of the handheld tower safety hook for the overhead transmission line.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The locking block 4 is shown in partial section in fig. 1, with the fixed and movable handles omitted from fig. 2.
Referring to fig. 1 to 3, the embodiment of the handheld tower falling protector for an overhead transmission line is disclosed, and the handheld tower falling protector for an overhead transmission line is applied to tower materials of the overhead transmission line and comprises a fixed block 1, a fixed handle 2, a movable handle 3, a locking block 4 and a rope hook 5, wherein the fixed block 1 is provided with a clamping groove 6 with a concave cross section, the fixed handle 2 is fixed on the side surface of the fixed block 1, the locking block 4 is rotatably arranged on the fixed block 1 below the fixed handle 2, the movable handle 3 and the rope hook 5 are both fixed on the locking block 4, and the fixed block 1 is further provided with a through groove 7 which enables the locking block 4 to extend into the clamping groove 6; when the locking block 4 is in a natural state or is pulled downwards by the hanging rope hook 5, the locking block 4 extends into the clamping groove 6 and is matched with the side wall of the opposite clamping groove 6 to clamp the tower material, and the tower material is a clamping position of the locking block 4; when the movable handle 3 and the fixed handle 2 are close to each other, the locking block 4 and the side wall of the clamping groove 6 release the tower material, which is the release position of the locking block 4.
The anti-falling device can be clamped into tower materials of a tower through the clamping groove 6, is not limited by the width of the tower materials due to the concave-shaped clamping groove 6, can be directly used on the tower, is not limited by whether a guide rail is installed on the tower or not, can be adapted to various tower materials with different sizes, can be used by people when patrolling the line, and can directly take off and take away the anti-falling device after the use, so that the anti-falling device is convenient for daily maintenance, is not easy to cause the clamping phenomenon and is not easy to lose or damage, the tower materials are clamped through the mutual action when the anti-falling device is subjected to downward pulling force by utilizing the matching of the locking block 4 and the side wall of the clamping groove 6, the anti-falling effect is realized, when the people need to climb upwards, the distance between the locking block 4 and the side wall of the clamping groove 6 is increased by tightly holding the fixed handle 2 and the movable handle 3, the tower materials are loosened, even a novice can be skillfully operated quickly.
Generally, the fixing block 1 is made into a cuboid, the clamping groove 6 is arranged along the length direction, namely the top surface, the bottom surface and one side surface of the fixing block 1 are opened to form the clamping groove 6 with the cross section in a concave shape, and the fixing handle 2 and the locking block 4 are arranged on the side surface adjacent to the side surface with the opening. The cross section of the locking block 4 can be in a cylindrical shape such as a circle, an ellipse or a polygon, preferably, a cylinder with an elliptical cross section is selected, so that when the locking block 4 is in a locking yesterday state and a releasing state, the distance between the locking block 4 and the side wall of the opposite clamping groove 6 can be adjusted in a large range, and the operation of personnel is facilitated; at this moment, the oval terminal surface of latch segment 4 is unanimous with side opening direction, and the line of two focuses on the latch segment 4 cross section is parallel with the length direction of draw-in groove 6 promptly, the first half of latch segment 4 even has pivot 9, the axis of pivot 9 is perpendicular with the line of two focuses of latch segment 4, can guarantee like this that the arc lateral surface of latch segment 4 is at least line contact with between the tower material.
In order to ensure that the locking block 4 can rotate better when in use, and the clamping position and the releasing position are switched, two parallel supporting blocks 8 are arranged on the fixed block 1 below the fixed handle 2, a certain position is reserved between the two supporting blocks 8, the locking block 4 is positioned between the two supporting blocks 8, the two ends of the rotating shaft 9 are respectively connected with one supporting block 8, the rotating shaft 9 can be fixedly connected with the supporting blocks 8 or the locking block 4 and can also be in rotating connection with the supporting blocks 8, and only the locking block 4 can be ensured to rotate relative to the supporting blocks 8. Certainly, when the locking block 4 is not subjected to external force, in order to keep the locking block 4 in a locking state, the rotating shaft 9 can be sleeved with a torsion spring 10, one end of the torsion spring 10 is fixedly connected with one of the supporting blocks 8, the other end of the torsion spring 10 is fixedly connected with the locking block 4, and when the locking block 4 is in an unlocking position, once the external force is removed, the locking block 4 is switched to the locking position by using the elasticity of the torsion spring 10.
The rope hook 5 is preferably arranged below the movable handle 3, so that the distance between the movable handle 3 and the fixed handle 2 can be reduced, the single-hand operation of personnel is facilitated, the locking block 4 needs to be controlled to rotate when the movable handle 3 is operated, the locking block 4 is switched to the release position, the locking block 4 needs to be located in the clamping position when the rope hook 5 is stressed, the movable handle 3 is fixedly connected to the upper half part of the locking block 4, and the rope hook 5 is fixedly connected to the lower half part of the locking block 4. Generally, the rope hook 5 comprises a connecting block 11, a hanging hole 12 is formed in the connecting block 11, and the safety rope can directly penetrate through the hanging hole 12 and then is fixedly connected with personnel.
The fixed handle 2 is an arc-shaped handle, and the bottom end of the fixed handle is fixed on the fixed block 1; the movable handle 3 is also an arc-shaped handle, and the bottom end of the movable handle is fixed on the locking block 4; the concave surfaces of the fixed handle 2 and the movable handle 3 are upward, and when the locking block 4 is switched to the release position, an operator can obtain better hand feeling of holding.
When the safety rope is used, an operator holds the handheld tower falling protector of the overhead transmission line by two hands respectively, and the safety rope penetrates through the hanging rope hook 5 to be bound with the operator. In the process of going up and down the tower, firstly, one hand is used for holding the fixed handle 2 and the movable handle 3 of the anti-falling device, the distance between the fixed handle 2 and the movable handle 3 is held to be the minimum, at the moment, the locking block 4 is switched to the loosening position, the distance between the locking block 4 and the corresponding side wall of the clamping groove 6 is the maximum, the tower material is clamped into the clamping groove 6 from the side surface, the operator loosens the fixed handle 2 and the movable handle 3, the locking block 4 is switched to the clamping position, the distance between the locking block 4 and the corresponding side wall of the clamping groove 6 is reduced, the tower material stretching into the clamping groove 6 is clamped, if the operator falls due to insufficient feet, the locking block 4 is clamped in the clamping position due to the downward force effect of the hanging rope hook 5 of the anti-falling device connected with the operator, the tower material is clamped. The operation personnel block the tower material through two safety guards in turn in proper order and remove on the shaft tower to protect operation personnel's safety, avoided the emergence of incident, and this device uses in pairs, and the tower material is the card income draw-in groove 6 from the side, consequently can adapt to most shaft towers, let the operation personnel go out to patrol the line only wear one set of safety guard can, greatly reduced the operation personnel go out the quantity that the operation carried the instrument.
The above description is only an embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications within the technical field of the present invention by those skilled in the art are covered by the claims of the present invention.
Claims (8)
1. Hand-held type shaft tower safety hook of overhead transmission line is applied to on the tower material of overhead transmission line shaft tower, its characterized in that: the rope-hanging type electric bicycle comprises a fixed block (1), a fixed handle (2), a movable handle (3), a locking block (4) and a rope-hanging hook (5), wherein a clamping groove (6) with a concave-shaped cross section is formed in the fixed block (1), the fixed handle (2) is fixed on the side face of the fixed block (1), the locking block (4) is rotatably arranged on the fixed block (1) below the fixed handle (2), the movable handle (3) and the rope-hanging hook (5) are both fixed on the locking block (4), and a through groove (7) enabling the locking block (4) to extend into the clamping groove (6) is further formed in the fixed block (1);
when the locking block (4) is not subjected to external force or is pulled downwards by the hanging rope hook (5), the locking block (4) extends into the clamping groove (6) and is matched with the side wall of the opposite clamping groove (6) to clamp the tower material; when the movable handle (3) and the fixed handle (2) are closed, the tower materials are loosened by the locking block (4) and the side wall of the clamping groove (6).
2. The overhead transmission line handheld tower safety hook of claim 1, characterized in that: the locking block (4) is a cylinder with an oval cross section, the connecting line of the two focuses on the cross section of the locking block (4) is parallel to the length direction of the clamping groove (6), the upper half part of the locking block (4) is connected with a rotating shaft (9), and the axis of the rotating shaft (9) is perpendicular to the connecting line of the two focuses of the locking block (4).
3. The overhead transmission line handheld tower safety hook of claim 2, characterized in that: two parallel supporting blocks (8) are arranged on the fixed block (1) below the fixed handle (2), the locking block (4) is located between the two supporting blocks (8), and two ends of the rotating shaft (9) are connected with one supporting block (8) respectively.
4. The overhead transmission line handheld tower safety hook of claim 3, characterized in that: the rotating shaft (9) is further sleeved with a torsion spring (10), one end of the torsion spring (10) is fixedly connected with one of the supporting blocks (8), and the other end of the torsion spring (10) is fixedly connected with the locking block (4).
5. The overhead transmission line handheld tower safety hook of claim 2, characterized in that: the rope hook (5) is positioned below the movable handle (3).
6. The overhead transmission line handheld tower safety hook of claim 5, characterized in that: the movable handle (3) is fixedly connected to the upper half part of the locking block (4), and the rope hook (5) is fixedly connected to the lower half part of the locking block (4).
7. The overhead transmission line handheld tower safety hook of claim 1, characterized in that: the fixed handle (2) is an arc-shaped handle, and the bottom end of the fixed handle is fixed on the fixed block (1); the movable handle (3) is also an arc-shaped handle, and the bottom end of the movable handle is fixed on the locking block (4); the concave surfaces of the fixed handle (2) and the movable handle (3) are upward.
8. The overhead transmission line handheld tower safety hook of claim 1, characterized in that: the hanging rope hook (5) comprises a connecting block (11), and a hanging hole (12) is formed in the connecting block (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010883308.0A CN112190846A (en) | 2020-08-28 | 2020-08-28 | Handheld tower falling protector for overhead transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010883308.0A CN112190846A (en) | 2020-08-28 | 2020-08-28 | Handheld tower falling protector for overhead transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112190846A true CN112190846A (en) | 2021-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010883308.0A Pending CN112190846A (en) | 2020-08-28 | 2020-08-28 | Handheld tower falling protector for overhead transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112190846A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004075993A1 (en) * | 2003-02-26 | 2004-09-10 | Central (High Rise) Limited | Safety devices |
| CN101219261A (en) * | 2008-01-23 | 2008-07-16 | 毛学忠 | Drop preventing safety device for speeling electric power steel tower |
| JP2014110867A (en) * | 2012-12-05 | 2014-06-19 | Fukushima Sekkei:Kk | Fall prevention tool |
| CN107952189A (en) * | 2017-11-09 | 2018-04-24 | 国网山东省电力公司临沂供电公司 | Anti-fall device for pole tower operation |
| CN208710863U (en) * | 2018-06-25 | 2019-04-09 | 中电建成都铁塔有限公司 | A kind of power transmission line steel pipe rod operation falling prevention device |
| CN110051947A (en) * | 2019-03-11 | 2019-07-26 | 国网新疆电力有限公司昌吉供电公司 | Angle steel tower catching device |
| CN211024879U (en) * | 2019-10-10 | 2020-07-17 | 云南电网有限责任公司曲靖供电局 | Self-locking type angle steel tower safety belt double-back protection rope buckle |
-
2020
- 2020-08-28 CN CN202010883308.0A patent/CN112190846A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004075993A1 (en) * | 2003-02-26 | 2004-09-10 | Central (High Rise) Limited | Safety devices |
| CN101219261A (en) * | 2008-01-23 | 2008-07-16 | 毛学忠 | Drop preventing safety device for speeling electric power steel tower |
| JP2014110867A (en) * | 2012-12-05 | 2014-06-19 | Fukushima Sekkei:Kk | Fall prevention tool |
| CN107952189A (en) * | 2017-11-09 | 2018-04-24 | 国网山东省电力公司临沂供电公司 | Anti-fall device for pole tower operation |
| CN208710863U (en) * | 2018-06-25 | 2019-04-09 | 中电建成都铁塔有限公司 | A kind of power transmission line steel pipe rod operation falling prevention device |
| CN110051947A (en) * | 2019-03-11 | 2019-07-26 | 国网新疆电力有限公司昌吉供电公司 | Angle steel tower catching device |
| CN211024879U (en) * | 2019-10-10 | 2020-07-17 | 云南电网有限责任公司曲靖供电局 | Self-locking type angle steel tower safety belt double-back protection rope buckle |
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Application publication date: 20210108 |