CN206376735U - A kind of fall protection equipment of cat ladder work high above the ground - Google Patents
A kind of fall protection equipment of cat ladder work high above the ground Download PDFInfo
- Publication number
- CN206376735U CN206376735U CN201621280176.8U CN201621280176U CN206376735U CN 206376735 U CN206376735 U CN 206376735U CN 201621280176 U CN201621280176 U CN 201621280176U CN 206376735 U CN206376735 U CN 206376735U
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- CN
- China
- Prior art keywords
- cat ladder
- cam
- guide groove
- cam mechanism
- hole
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of fall protection equipment of cat ladder work high above the ground; it includes guard clip; the one side of guard clip is provided with axial guide groove, and guide groove is used for the montant for being clamped in cat ladder, and the another side of guard clip is provided with through hole in the position for being oriented to trench bottom；Cam mechanism is provided with through hole, cam mechanism is rotatably supported on the two side of through hole by a locating shaft, cam mechanism it is inner with cam mechanism is rotated down and to be oriented to geosynclinal convex go out, with cam mechanism is rotated up and to through hole contract；Guide groove side wall is provided with cavity, is supported with a runner in cavity, and rotor periphery face is at least provided with three spokes, and spoke outer end reaches in guide groove and to skid off and relative with cam mechanism set to ground out of guide groove to limit the montant of cat ladder.The utility model fall protection equipment provides effective fall arrest protection, and without prejudice to climbing cat ladder for staff, greatly facilitates cat ladder work high above the ground.
Description
Technical field
The utility model is related to a kind of fall protection equipment of cat ladder work high above the ground.
Background technology
With the composite insulator cumulative year after year of circuit hanging net operation, the inspection of composite insulator also turns into a routine and appointed
Business.The inspection of composite insulator is needed in work high above the ground, and the instrument of work high above the ground climbing is mainly rope ladder, and rope ladder mainly divides
For lightweight, adaptive type, durable type and protection type.Lightweight, three kinds of rope ladders of adaptive type and durable type are filled without back-up protection
Put, protection type rope ladder has catch net, but weight weight, space-consuming is big, is not suitable for the composite insulator to transmission line of electricity in high-altitude
Carry out Inspection.And work high above the ground is the operation of an excessive risk, if anything is wrong, most probably can staff from high-altitude fall
Fall, cause personnel dead.
In view of this, it is necessory to provide a kind of fall protection equipment of cat ladder work high above the ground.
Utility model content
The utility model purpose is the provision of a kind of fall protection equipment of cat ladder work high above the ground, is that staff makes
With the protection that fall arrest is provided during cat ladder work high above the ground, the effective guarantee personal safety of staff.
To achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of fall protection equipment of cat ladder work high above the ground, it includes guard clip, and the one side of guard clip is provided with axial direction
Guide groove, guide groove is used to be clamped in the montant of cat ladder, and the another side of guard clip is provided with the position for being oriented to trench bottom
Through hole；
Cam mechanism is provided with through hole, cam mechanism is rotatably supported on the two side of through hole by a locating shaft,
Cam mechanism it is inner with cam mechanism is rotated down and to be oriented to geosynclinal convex go out, with cam mechanism is rotated up and to through hole
Contract；
Guide groove side wall is provided with cavity, is supported with a runner in cavity, rotor periphery face at least provided with three spokes,
Spoke outer end reaches in guide groove and to skid off and relative with cam mechanism set to ground out of guide groove to limit the montant of cat ladder
Put.
When staff carries out work high above the ground using cat ladder, by leading for the guard clip of the utility model fall protection equipment
Laterally it is clamped in groove from outer on the montant of cat ladder, the montant of cat ladder is located in the space that runner spoke is formed with guide groove, from
And the montant of cat ladder is restricted from skidding off out of guide groove；And the outer end of cam mechanism and the safety rope for being wrapped in staff
It is fixedly connected, staff is when climbing cat ladder, and the utility model fall protection equipment is always positioned at the lower section of staff,
It is rotated up under staff's traction action so as to cam mechanism, the inner of cam mechanism is to through hole contract without acting on
On the montant of cat ladder, now fall protection equipment is in releasing orientation；At the same time when staff climbs cat ladder upwards
When, the utility model fall protection equipment can be driven to move up, climbed when the utility model fall protection equipment is moved to
During the cross bar position of ladder, the cross bar of cat ladder is inserted into from upper end contacts and gives spoke with the spoke of runner after guard clip guide groove
Down force so that runner is rotated, and the cross bar of cat ladder crosses the spoke of runner, so that fall protection equipment can be after
It is continuous to move up.And when staff unfortunately falls downwards to the lower section of the utility model fall protection equipment, work people
Member gives cam mechanism outer end down force so that cam mechanism is rotated down, and the inner of cam mechanism is with cam machine
Structure rotates down and goes out and be pressed on the montant of cat ladder to geosynclinal convex is oriented to so that the montant of cat ladder by the inner of cam mechanism and
Spoke is mutually clamped, and fall protection equipment enters lockup state, and staff is locked from continuing to fall downwards.
As a kind of improvement of the present utility model, the locating shaft is provided with torsion spring, and the torque arm of torsion spring one is fixed on cam machine
On structure, another torque arm be fixed on the side wall of through hole, torsion spring causes cam mechanism in an intermediate position when being acted on without external force.Turn round
Spring causes cam mechanism in an intermediate position when being acted on without external force, cam mechanism can be avoided at will to swing, while when cam machine
Torsion spring gives cam mechanism one return action power after structure rotates.
Further, the cam mechanism includes two cam arms, and two cam arms are upper cam arm and lower cam arm, convex
The inner of wheel arm is cam structure and is rotatably supported in by locating shaft on the two side of through hole that through hole is groove profile hole, on
Cam arm and lower cam arm are disposed side by side in through hole one on the other, and the outer end of upper cam arm and lower cam arm is respectively hinged at one
The two ends of connecting plate；Guide groove side wall with upper cam arm and lower cam arm opposite position at be respectively equipped with upper plenum and under
Runner is designed with cavity, upper plenum and lower cavity.Cam mechanism is used in the form of biconvex wheel arm, upper cam arm and upper plenum
Runner spoke coordinate, the runner spoke in lower cam arm and lower cavity coordinates, and gives the multiple points of force application of montant of cat ladder, can
Stress balance during make it that the montant of cat ladder is mutually clamped by the inner of cam mechanism with spoke, thus it is so clamped that more to step up, more
Plus safety.
Improved as the utility model one kind, be provided with ratchet and pawl in the cavity, ratchet and runner it is coaxial and with
The side of runner is fixedly connected, and one end of ratchet is placed in one end of a positioning sleeve, the other end and ratchet are connected, positioning sleeve
It is fixed in cavity, the other end internal thread of positioning sleeve, which is connected with to be provided with adjustment bolt, positioning sleeve, is located at adjustment bolt and spine
Flexible member between pawl.The active force of ratchet is given come regulation elasticity element by turning adjustment bolt so that ratchet with
Ratchet keeps coordinating, and coordinating between ratchet and ratchet can prevent runner from unordered, direction-free rotation occur, to ensure to turn
Take turns the rotation of equalization stable all the time.
Further, the flexible member is spring.
Improved as the utility model one kind, the upper surface of the guard clip is curved surface, opposite side of the curved surface from guard clip
Towards one side gradually rounding off from high to lower.Guide effect is played in the upper surface of guard clip for the curved surface of rounding off, when
When the utility model fall protection equipment is moved to the cross bar position of cat ladder, the cross bar of cat ladder is oriented in the curved surface of rounding off
Gradually slipped under effect easily with guard clip guide groove, effectively increasing fall protection equipment climbing efficiency.
Improved as the utility model one kind, the guide groove opposite side wall is being provided with groove with cavity corresponding position,
Spoke outer end is projected in groove.Groove is provided with guide groove opposite side wall, spoke outer end is reached in groove, spoke is with being oriented to
The two side of groove forms the space of a closing so that the montant of cat ladder can not be skidded off out of guide groove.
Compared with prior art, the utility model has advantages below：
The utility model fall protection equipment is laterally clamped on the montant of cat ladder by the guide groove of guard clip from outer,
And the montant of cat ladder can not be skidded off from guide groove, while fall protection equipment can be moved on across the cross bar of cat ladder, both for
Staff provides effective fall arrest protection, and without prejudice to climbing cat ladder, greatly facilitates cat ladder work high above the ground.
Brief description of the drawings
Fig. 1 is the use schematic diagram of the fall protection equipment of the utility model cat ladder work high above the ground；
Fig. 2 is the stereogram of the fall protection equipment of the utility model cat ladder work high above the ground；
Fig. 3 is Fig. 2 explosive view；
Fig. 4 is the stereogram of the fall protection equipment guard clip of the utility model cat ladder work high above the ground；
Fig. 5 is Fig. 4 top view；
Fig. 6 is the stereogram of the fall protection equipment cam mechanism of the utility model cat ladder work high above the ground；
Fig. 7 is the side view of the fall protection equipment runner of the utility model cat ladder work high above the ground；
Fig. 8 is Fig. 7 A-A sectional views.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that described herein
Specific embodiment be used only for explain the utility model, rather than to it is of the present utility model limit.It also should be noted that,
For the ease of description, the part related to the utility model rather than full content are illustrate only in accompanying drawing.
It refer to Fig. 1 to Fig. 8, a kind of fall protection equipment of cat ladder work high above the ground, it includes guard clip 2, guard clip 2
One side be provided with axial guide groove 21, guide groove 21 is used for the montant 11 for being clamped in cat ladder 1, the opposite side of guard clip 2
Face is provided with through hole 22 in the position of the bottom of guide groove 21；
Cam mechanism 3 is provided with through hole 22, cam mechanism 3 is rotatably supported in the two of through hole 22 by a locating shaft 34
On the wall of side, the inner of cam mechanism 3 is as cam mechanism 3 is rotated down and is protruded to guide groove 21, as cam mechanism 3 is upward
Rotate and to the contract of through hole 22；
The side wall of guide groove 21 is provided with cavity 23,24, cavity 23,24 and is supported with a runner 4, and the outer peripheral face of runner 4 is set
There are three spokes 41, the outer end of spoke 41 is reached to be skidded off, simultaneously in guide groove 21 with the montant 11 for limiting cat ladder 1 out of guide groove 21
It is relative with cam mechanism 3 to be set to ground.
When staff carries out work high above the ground using cat ladder, by leading for the guard clip of the utility model fall protection equipment
Laterally it is clamped in groove from outer on the montant of cat ladder, the montant of cat ladder is located in the space that runner spoke is formed with guide groove, from
And the montant of cat ladder is restricted from skidding off out of guide groove；And the outer end of cam mechanism and the safety rope for being wrapped in staff
It is fixedly connected, staff is when climbing cat ladder, and the utility model fall protection equipment is always positioned at the lower section of staff,
It is rotated up under staff's traction action so as to cam mechanism, the inner of cam mechanism is to through hole contract without acting on
On the montant of cat ladder, now fall protection equipment is in releasing orientation；At the same time when staff climbs cat ladder upwards
When, the utility model fall protection equipment can be driven to move up, climbed when the utility model fall protection equipment is moved to
During the cross bar position of ladder, the cross bar of cat ladder is inserted into from upper end contacts and gives spoke with the spoke of runner after guard clip guide groove
Down force so that runner is rotated, and the cross bar of cat ladder crosses the spoke of runner, so that fall protection equipment can be after
It is continuous to move up.And when staff unfortunately falls downwards to the lower section of the utility model fall protection equipment, work people
Member gives cam mechanism outer end down force so that cam mechanism is rotated down, and the inner of cam mechanism is with cam machine
Structure rotates down and goes out and be pressed on the montant of cat ladder to geosynclinal convex is oriented to so that the montant of cat ladder by the inner of cam mechanism and
Spoke is mutually clamped, and fall protection equipment enters lockup state, and staff is locked from continuing to fall downwards.
In the present embodiment, the cam mechanism 3 includes two cam arms, and two cam arms are that upper cam arm 31 is convex with
Wheel arm 32, the inner of cam arm 31,32 is cam structure and the two side of through hole 22 is rotatably supported in by locating shaft 34
On, through hole is groove profile hole, and upper cam arm 31 and lower cam arm 32 are disposed side by side in through hole 22 one on the other, the He of upper cam arm 31
The outer end of lower cam arm 32 is respectively hinged at the two ends of a connecting plate 33；The side wall of guide groove 21 with upper cam arm 31 and under it is convex
It is respectively equipped with the opposite position of wheel arm 32 in upper plenum 23 and lower cavity 24, upper plenum 23 and lower cavity 24 and is designed with runner.
Cam mechanism uses the form of biconvex wheel arm, and upper cam arm coordinates with the runner spoke in upper plenum, lower cam arm
Coordinate with the runner spoke in lower cavity, give the multiple points of force application of montant of cat ladder, the montant of cat ladder can be caused by cam
Stress balance when the inner of mechanism is mutually clamped with spoke, thus it is so clamped that more to step up, it is safer.
In addition, the outer end of cam mechanism 3 is provided with hook connection ring 5, specifically, hook connection ring 5 can be located at upper cam arm
The outer end of 31 or lower cam arms 32, hook connection ring can facilitate quickly to be connected with the hook of safety rope.
In the present embodiment, locating shaft 34 is provided with torsion spring 35, and the torque arm of torsion spring 35 1 is fixed on cam mechanism 3, another
Torque arm is fixed on the side wall of through hole 22, and torsion spring 35 make it that cam mechanism 3 is in an intermediate position when being acted on without external force；Specifically
The torque arm of torsion spring 35 1 is fixed on the inner of upper cam arm 31 or lower cam arm 32.Torsion spring causes cam mechanism to be acted on without external force
When it is in an intermediate position, cam mechanism can be avoided at will to swing, while torsion spring gives cam machine after cam mechanism rotates
One return action power of structure.
In one embodiment of the present utility model, ratchet 6 and ratchet 7 are provided with the cavity 23,24, ratchet 6 is with turning
Take turns 4 coaxial and be fixedly connected with the side of runner 4, one end of ratchet 7 is placed in one end of a positioning sleeve 8, the other end and spine
Wheel 6 is connected, and positioning sleeve 8 is fixed in cavity 23,24, and the other end internal thread of positioning sleeve 8 is connected with adjustment bolt 9, fixed
The flexible member 10 being located between adjustment bolt 9 and ratchet 7 is provided with position set 8, its elastic element 10 is spring.
The active force of ratchet is given come regulation elasticity element by turning adjustment bolt, so that ratchet keeps matching somebody with somebody with ratchet
Close, coordinating between ratchet and ratchet can prevent runner from unordered, direction-free rotation occur, to ensure that runner is balanced all the time
Stable rotation.
It is contemplated that flexible member can also be the column that other elastomeric materials are made, adjustment can be realized in a word
The existing flexible member of elasticity transmission, is belonged in protection domain of the present utility model between bolt and ratchet.
In one embodiment of the present utility model, the upper surface of the guard clip 2 is curved surface 26, and curved surface 26 is from guard clip
2 another side is to one side gradually rounding off from high to lower.Play and lead for the curved surface of rounding off in the upper surface of guard clip
To effect, when the utility model fall protection equipment is moved to the cross bar position of cat ladder, the cross bar of cat ladder is in rounding off
Curved surface guide effect under gradually slip into easily with guard clip guide groove, effectively increase fall protection equipment climbing efficiency.
In one embodiment of the present utility model, the opposite side wall of guide groove 21 with cavity 23,24 correspondence positions
Place is provided with groove 25, and the outer end of spoke 41 is projected in groove 25.Groove is provided with guide groove opposite side wall, spoke outer end is reached
In groove, the two side of spoke and guide groove forms the space of a closing so that the montant of cat ladder can not be slided out of guide groove
Go out.
Groove can also be the form of groove profile through hole, as long as the two side of spoke and guide groove can be caused to form a closing
Space form of grooves, be all in the protection domain for belong to utility model.Similarly, the end face of guide groove opposite side wall compares runner
The location of spoke is short, that is, runner spoke can reach the end of guide groove opposite side wall, so that and guide groove
Two side formed one closing space, this is fallen within protection domain of the present utility model.
Above-listed detailed description is illustrating for the utility model possible embodiments, and the embodiment is simultaneously not used to limitation
The scope of the claims of the present utility model, all equivalence enforcements or change without departing from carried out by the utility model are intended to be limited solely by this case
In the scope of the claims.
Claims (7)
1. a kind of fall protection equipment of cat ladder work high above the ground, including guard clip, it is characterised in that：The one side of guard clip is opened
There is axial guide groove, guide groove is used for the montant for being clamped in cat ladder, and the another side of guard clip is being oriented to the position of trench bottom
Put and be provided with through hole；
Cam mechanism is provided with through hole, cam mechanism is rotatably supported on the two side of through hole by a locating shaft, cam
The inner of mechanism goes out, as cam mechanism is rotated up and is received into through hole as cam mechanism is rotated down to geosynclinal convex is oriented to
Contracting；
Guide groove side wall is provided with cavity, cavity and is supported with a runner, and rotor periphery face is at least provided with three spokes, spoke
Outer end reaches in guide groove and to skid off and relative with cam mechanism set to ground out of guide groove to limit the montant of cat ladder.
2. the fall protection equipment of cat ladder work high above the ground according to claim 1, it is characterised in that：On the locating shaft
Provided with torsion spring, the torque arm of torsion spring one is fixed on cam mechanism, another torque arm is fixed on the side wall of through hole, and torsion spring causes cam machine
Structure is in an intermediate position when being acted on without external force.
3. the fall protection equipment of cat ladder work high above the ground according to claim 1, it is characterised in that：The cam mechanism
Including two cam arms, two cam arms are upper cam arm and lower cam arm, and the inner of cam arm is for cam structure and by fixed
Position axle is rotatably supported on the two side of through hole, and through hole is groove profile hole, and upper cam arm and lower cam arm are one on the other side by side
It is arranged in through hole, the outer end of upper cam arm and lower cam arm is respectively hinged at the two ends of a connecting plate；Guide groove side wall exists
It is designed with being respectively equipped with upper cam arm and lower cam arm opposite position in upper plenum and lower cavity, upper plenum and lower cavity
Runner.
4. the fall protection equipment of the cat ladder work high above the ground according to claim 1 or 3, it is characterised in that：The cavity
Interior to be provided with ratchet and pawl, ratchet and runner are coaxial and side of with runner is fixedly connected, and one end of ratchet is placed in a positioning
In one end of set, the other end and ratchet be connected, positioning sleeve is fixed in cavity, and the other end internal thread of positioning sleeve is connected with
The flexible member being located between adjustment bolt and ratchet is provided with adjustment bolt, positioning sleeve.
5. the fall protection equipment of cat ladder work high above the ground according to claim 4, it is characterised in that：The flexible member
For spring.
6. the fall protection equipment of cat ladder work high above the ground according to claim 1, it is characterised in that：The guard clip
Upper surface is curved surface, and curved surface is from the another side of guard clip to one side gradually rounding off from high to lower.
7. the fall protection equipment of cat ladder work high above the ground according to claim 1, it is characterised in that：The guide groove is another
Side wall is being provided with groove with cavity corresponding position, and spoke outer end is projected in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621280176.8U CN206376735U (en) | 2016-11-25 | 2016-11-25 | A kind of fall protection equipment of cat ladder work high above the ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621280176.8U CN206376735U (en) | 2016-11-25 | 2016-11-25 | A kind of fall protection equipment of cat ladder work high above the ground |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206376735U true CN206376735U (en) | 2017-08-04 |
Family
ID=59405336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621280176.8U Withdrawn - After Issue CN206376735U (en) | 2016-11-25 | 2016-11-25 | A kind of fall protection equipment of cat ladder work high above the ground |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206376735U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761371A (en) * | 2016-11-25 | 2017-05-31 | 中国南方电网有限责任公司超高压输电公司天生桥局 | A kind of fall protection equipment of cat ladder work high above the ground |
| CN111608075A (en) * | 2020-05-15 | 2020-09-01 | 甘肃路桥建设集团有限公司 | Auxiliary device for bridge maintenance |
| CN112723189A (en) * | 2021-02-26 | 2021-04-30 | 深圳市瑾能顺建材有限公司 | Following formula tower crane cat ladder anti-falling device |
| CN112796652A (en) * | 2020-12-30 | 2021-05-14 | 国网青海省电力公司海南供电公司 | Pole cat ladder platform device safety base |
-
2016
- 2016-11-25 CN CN201621280176.8U patent/CN206376735U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761371A (en) * | 2016-11-25 | 2017-05-31 | 中国南方电网有限责任公司超高压输电公司天生桥局 | A kind of fall protection equipment of cat ladder work high above the ground |
| CN106761371B (en) * | 2016-11-25 | 2019-02-05 | 中国南方电网有限责任公司超高压输电公司天生桥局 | A kind of fall protection equipment of ladder high altitude operation |
| CN111608075A (en) * | 2020-05-15 | 2020-09-01 | 甘肃路桥建设集团有限公司 | Auxiliary device for bridge maintenance |
| CN112796652A (en) * | 2020-12-30 | 2021-05-14 | 国网青海省电力公司海南供电公司 | Pole cat ladder platform device safety base |
| CN112723189A (en) * | 2021-02-26 | 2021-04-30 | 深圳市瑾能顺建材有限公司 | Following formula tower crane cat ladder anti-falling device |
| CN112723189B (en) * | 2021-02-26 | 2023-11-14 | 深圳市瑾能顺建材有限公司 | Follow-up type tower crane cat ladder anti-falling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170804 Effective date of abandoning: 20190205 |