CN205638208U - Ladder head that can lock by oneself and maintenance ladder who adopts this ladder head - Google Patents
Ladder head that can lock by oneself and maintenance ladder who adopts this ladder head Download PDFInfo
- Publication number
- CN205638208U CN205638208U CN201620478713.3U CN201620478713U CN205638208U CN 205638208 U CN205638208 U CN 205638208U CN 201620478713 U CN201620478713 U CN 201620478713U CN 205638208 U CN205638208 U CN 205638208U
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- coupler body
- ladder
- spring
- rod
- head
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Abstract
The utility model discloses a ladder head that can lock by oneself and maintenance ladder who adopts this ladder head, the ladder head includes connecting rod, spring, upward branch, coupler body, elastic inhaul, the hole of reeving reach and seal the pole, maintenance ladder includes the maintenance ladder body and sets up the terraced head on the maintenance ladder body. Ladder head and cable that the present case provided are connected and are broken away from conveniently, connection stability is good, can the effectual personal safety of guaranteeing the operation personnel.
Description
Technical field
This utility model relates to electric power cable implement technical field, particularly relate to a kind of can the terraced head of self-locking and use the maintenance ladder of this ladder head.
Background technology
For the cable in electrical network, during it uses, it is often necessary to it is operated or utilizes part cable by maintainer accordingly, stockbridge damper, equipotential live line work entrance electric field etc. are installed as cable is repaired, on cable.Use the place of jacking equipment in inconvenience, the maintenance ladder that maintainer's many employings upper end is erected on cable is climbed to certain altitude.
In prior art, the stability that maintenance ladder upper end is set up on cable directly affects the safety of maintainer, safety based on electric network operation, and the maintenance ladder form gone out in prior art awaits improving further.
Utility model content
The stability set up on cable for maintenance ladder upper end in above-mentioned prior art directly affects the safety of maintainer, safety based on electric network operation, the maintenance ladder form gone out in prior art awaits the problem improved further, this utility model provide a kind of can the terraced head of self-locking and use the maintenance ladder of this ladder head.
This utility model provide a kind of can the terraced head of self-locking and use the maintenance ladder of this ladder head to solve problem by techniques below main points: a kind of can the terraced head of self-locking, including the connecting rod set gradually from the bottom to top, spring, upper rack posts and coupler body, the lower end of described spring is fixing with the upper end of connecting rod to be connected, the upper end of spring is fixing with the lower end of upper rack posts to be connected, the upper end of upper rack posts is fixed in any one end of coupler body, and the hook-shaped portion of coupler body is positioned at the top of upper rack posts；
Also include the elastomeric cords that lower end is fixed in connecting rod, described upper rack posts be additionally provided with hole of reeving, described elastomeric cords pass described in reeve hole, and elastomeric cords can slide in hole of reeving；
The closed rod being articulated and connected with upper rack posts or coupler body by jointed shaft including one end, the upper end of described elastomeric cords is connected on closed rod；
During in the case of spring is by external force deformation, the upper end position of elastomeric cords changes, the power that closed rod applies is forced closed rod to rotate around the direction in the hinged axial hook-shaped portion of closing coupler body by elastomeric cords.
Concrete, in this case, above hook-shaped portion is on coupler body the hook space formed, and described connecting rod is connected for fixing with the upper end of maintenance ladder, and so, described coupler body i.e. for hook cable, reaches the purpose retraining cable with insulating ladder relative position topmost.But, when maintainer climbs maintenance ladder, owing to cable itself has certain flexibility, if only by coupler body by the upper end hook of maintenance ladder and cable, during cable rocks, coupler body likely lost efficacy with the type of attachment of cable, so, the upper end that can cause maintenance ladder loses support, affects the safety of operating personnel in maintenance ladder.
In this structure, by described closed rod, the hook space of coupler body is closed, and the elastic deformation whether closed rod realizes carrying out closing dependence spring to closing space completes: after the maintenance ladder using this ladder head is erected on cable, under the effect of maintenance ladder deadweight and maintainer's body weight, spring tension is deformed, so, owing to the lower end of elastomeric cords is fixed relative to maintenance ladder, the upper end position that then certainly will cause elastomeric cords changes, owing to the position on closed rod, the position of above elastomeric cords upper end is certain, so, just can be by the position change of elastomeric cords upper end, reach the effect rotated by elastomeric cords braking closed rod around jointed shaft, so, can be by the continuous deformation of spring, reach closed rod and close the technique effect in hook space.After hook space-closed; can reach and avoid cable during rocking; coupler body occurs with the situation of cable Joint failure; therefore the terraced head of this case offer is provided; the effect of the most protected climbing operating personnel's personal safety; adjust the closed rod position relative to coupler body, the terraced head that this case provides by the elastic deformation of spring simultaneously, also have and be connected and disengage effect convenient, that connection stable conditions is strong with cable.
Owing to above elastomeric cords is elastomer, the specific implementations such as elastic strip, helical spring that spring steel makes can be used, so, during camber of spring, the upper end of elastomeric cords moves downward, the free end of closed rod setting up on coupler body is a little arranged at the position that closed rod will turn to, and just can well realize this programme.
Further technical scheme is:
For make spring elastic deformation can large effect to the upper end position of elastomeric cords, described in the lower end in hole of reeving connect with the upper end of spring.Being preferably arranged to spring in a free state, the length direction of elastomeric cords is parallel to the axis direction of spring.
As spring and the form that implements of elastomeric cords, described spring and elastomeric cords are helical spring.
For ease of coupler body hook cable, described jointed shaft is arranged on connection end or the upper rack posts of coupler body, the lower end of closed rod is articulated and connected with jointed shaft, and the lower end of closed rod is positioned at the lower section of coupler body free end, under spring free state, the upper end of closed rod is respectively positioned on the homonymy of described free side with the end that connects of the free side superimposed of coupler body or the upper end of closed rod and coupler body.In above structure, mention after maintenance ladder makes the opening of coupler body be positioned on cable, just can by coupler body free end side, coupler body be hooked on cable the most easily.
For ease of moving the maintenance ladder using this ladder head along cable, described coupler body being additionally provided with and is positioned at the pulley in hook-shaped portion on coupler body, the axis direction of described pulley is positioned at the width in hook-shaped portion.
Simultaneously, this case additionally provides a kind of electric power cable maintenance ladder, including maintenance ladder body, described maintenance ladder body includes two vertical rods and is arranged at the cross bar between two straight-bars, the upper end of described vertical rod is respectively connected with the terraced head that one scheme of any of the above provides, and the upper end of described vertical rod is fixing with described connecting rod to be connected.
For making two terraced heads in same maintenance ladder can mutually retrain on mechanics, the safety that beneficially maintenance ladder uses, also include at least pull bar being arranged between two vertical rod upper end ladder heads, the different ends of described pull bar are fixing from different terraced heads respectively to be connected.
This utility model has the advantages that
This case provides a kind of ladder head and a kind of maintenance ladder using described ladder head, by described closed rod, the hook space of coupler body is closed, and the elastic deformation whether closed rod realizes carrying out closing dependence spring to closing space completes: after the maintenance ladder using this ladder head is erected on cable, under the effect of maintenance ladder deadweight and maintainer's body weight, spring tension is deformed, so, owing to the lower end of elastomeric cords is fixed relative to maintenance ladder, the upper end position that then certainly will cause elastomeric cords changes, owing to the position on closed rod, the position of above elastomeric cords upper end is certain, so, just can be by the position change of elastomeric cords upper end, reach the effect rotated by elastomeric cords braking closed rod around jointed shaft, so, can be by the continuous deformation of spring, reach closed rod and close the technique effect in hook space.After hook space-closed; can reach and avoid cable during rocking; coupler body occurs with the situation of cable Joint failure; therefore the terraced head of this case offer is provided; the effect of the most protected climbing operating personnel's personal safety; adjust the closed rod position relative to coupler body or the incline direction relative to jointed shaft by the elastic deformation of spring simultaneously, the terraced head that this case provides, also have and be connected and disengage effect convenient, that connection stable conditions is strong with cable.
Accompanying drawing explanation
Fig. 1 be described in the utility model a kind of can the structural representation of first specific embodiment of ladder of self-locking；
Fig. 2 is the structural representation on a kind of one specific embodiment top of electric power cable maintenance ladder described in the utility model.
Numbering in figure is followed successively by: 1, connecting rod, and 2, spring, 3, elastomeric cords, 4, jointed shaft, 5, closed rod, 6, coupler body, 7, pulley, 8, pull bar, 9, upper rack posts.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in further detail, but structure of the present utility model is not limited only to following example.
Embodiment 1:
As depicted in figs. 1 and 2, a kind of can the terraced head of self-locking, including the connecting rod 1 set gradually from the bottom to top, spring 2, upper rack posts 9 and coupler body 6, the lower end of described spring 2 is fixing with the upper end of connecting rod 1 to be connected, the upper end of spring 2 is fixing with the lower end of upper rack posts 9 to be connected, the upper end of upper rack posts 9 is fixed in any one end of coupler body 6, and the hook-shaped portion of coupler body 6 is positioned at the top of upper rack posts 9；
Also include the elastomeric cords 3 that lower end is fixed in connecting rod 1, described upper rack posts 9 be additionally provided with hole of reeving, described elastomeric cords 3 pass described in reeve hole, and elastomeric cords 3 can slide in hole of reeving；
Passing through, including one end, the closed rod 5 that jointed shaft 4 is articulated and connected with upper rack posts 9 or coupler body 6, the upper end of described elastomeric cords 3 is connected on closed rod 5；
During in the case of spring 2 is by external force deformation, the upper end position of elastomeric cords 3 changes, the power that closed rod 5 applies is forced closed rod 5 around jointed shaft 4 to the direction rotation closing the hook-shaped portion of coupler body 6 by elastomeric cords 3.
Concrete, in this case, above hook-shaped portion is on coupler body 6 the hook space formed, and described connecting rod 1 is connected for fixing with the upper end of maintenance ladder, and so, described coupler body 6 i.e. for hook cable, reaches the purpose retraining cable with insulating ladder relative position topmost.But, when maintainer climbs maintenance ladder, owing to cable itself has certain flexibility, if only by coupler body 6 by the upper end hook of maintenance ladder and cable, during cable rocks, coupler body 6 likely lost efficacy with the type of attachment of cable, so, the upper end that can cause maintenance ladder loses support, affects the safety of operating personnel in maintenance ladder.
In this structure, by described closed rod 5, the hook space of coupler body 6 is closed, and the elastic deformation whether closed rod 5 realizes carrying out closing dependence spring 2 to closing space completes: after the maintenance ladder using this ladder head is erected on cable, under the effect of maintenance ladder deadweight and maintainer's body weight, spring 2 tension is deformed, so, owing to the lower end of elastomeric cords 3 is fixed relative to maintenance ladder, the upper end position that then certainly will cause elastomeric cords 3 changes, owing to the position on closed rod 5, the position of above elastomeric cords 3 upper end is certain, so, just can be by the position change of elastomeric cords 3 upper end, reach to brake, by elastomeric cords 3, the effect that closed rod 5 rotates around jointed shaft 4, so, can be by the continuous deformation of spring 2, reach closed rod 5 and close the technique effect in hook space.After hook space-closed; can reach and avoid cable during rocking; coupler body 6 occurs with the situation of cable Joint failure; therefore the terraced head of this case offer is provided; the effect of the most protected climbing operating personnel's personal safety; adjust the closed rod 5 position relative to coupler body 6, the terraced head that this case provides by the elastic deformation of spring 2 simultaneously, also have and be connected and disengage effect convenient, that connection stable conditions is strong with cable.
Owing to above elastomeric cords 3 is elastomer, the present embodiment uses elastic strip, the specific implementation such as helical spring that spring steel makes, so, when spring 2 deforms, the upper end of elastomeric cords 3 moves downward, the free end of closed rod 5 setting up on coupler body 6 is a little arranged at the position that closed rod 5 will turn to, and just can well realize this programme.
Simultaneously, this case additionally provides a kind of electric power cable maintenance ladder, including maintenance ladder body, described maintenance ladder body includes two vertical rods and is arranged at the cross bar between two straight-bars, the upper end of described vertical rod is respectively connected with the terraced head that one scheme of any of the above provides, and the upper end of described vertical rod is fixing with described connecting rod 1 to be connected.
For making two terraced heads in same maintenance ladder can mutually retrain on mechanics, it is beneficial to the safety that maintenance ladder uses, also including at least pull bar 8 being arranged between two vertical rod upper end ladder heads, the different ends of described pull bar 8 are fixing from different terraced heads respectively to be connected.
Embodiment 2:
As depicted in figs. 1 and 2, described ladder head is further qualified on the basis of embodiment 1 by the present embodiment: for make spring 2 elastic deformation can large effect to the upper end position of elastomeric cords 3, described in the lower end in hole of reeving connect with the upper end of spring 2.Being preferably arranged to spring 2 in a free state, the length direction of elastomeric cords 3 is parallel to the axis direction of spring 2.
As spring 2 and the form that implements of elastomeric cords 3, described spring 2 and elastomeric cords 3 are helical spring.
For ease of coupler body 6 hook cable, described jointed shaft 4 is arranged on connection end or the upper rack posts 9 of coupler body 6, the lower end of closed rod 5 is articulated and connected with jointed shaft 4, and the lower end of closed rod 5 is positioned at the lower section of coupler body 6 free end, under spring 2 free state, the upper end of closed rod 5 is respectively positioned on the homonymy of described free side with the end that connects of the free side superimposed of coupler body 6 or the upper end of closed rod 5 and coupler body 6.In above structure, mention after maintenance ladder makes the opening of coupler body 6 be positioned on cable, just can by coupler body 6 free end side, coupler body 6 be hooked on cable the most easily.
Embodiment 3:
Described maintenance ladder is further qualified on the basis of embodiment 1 by the present embodiment, as depicted in figs. 1 and 2, for ease of moving the maintenance ladder using this ladder head along cable, being additionally provided with the pulley 7 in the hook-shaped portion on coupler body 6 that is positioned on described coupler body 6, the axis direction of described pulley 7 is positioned at the width in hook-shaped portion.
Above content is to combine the further description that this utility model is made by concrete preferred implementation, it is impossible to assert that detailed description of the invention of the present utility model is confined to these explanations.For this utility model person of an ordinary skill in the technical field, other embodiments drawn under without departing from the technical solution of the utility model, should be included in protection domain of the present utility model.
Claims (7)
1. one kind can the terraced head of self-locking, it is characterized in that, including the connecting rod (1) set gradually from the bottom to top, spring (2), upper rack posts (9) and coupler body (6), the lower end of described spring (2) is fixing with the upper end of connecting rod (1) to be connected, the upper end of spring (2) is fixing with the lower end of upper rack posts (9) to be connected, the upper end of upper rack posts (9) is fixed in any one end of coupler body (6), and the hook-shaped portion of coupler body (6) is positioned at the top of upper rack posts (9)；
Also include the elastomeric cords (3) that lower end is fixed in connecting rod (1), described upper rack posts (9) be additionally provided with hole of reeving, described elastomeric cords (3) pass described in reeve hole, and elastomeric cords (3) can slide in hole of reeving；
Passing through, including one end, the closed rod (5) that jointed shaft (4) is articulated and connected with upper rack posts (9) or coupler body (6), the upper end of described elastomeric cords (3) is connected on closed rod (5)；
During in the case of spring (2) is by external force deformation, the upper end position of elastomeric cords (3) changes, the power that closed rod (5) applies is forced closed rod (5) to rotate to the direction closing coupler body (6) hook-shaped portion around jointed shaft (4) by elastomeric cords (3).
The most according to claim 1 a kind of can the terraced head of self-locking, it is characterised in that described in the lower end in hole of reeving connect with the upper end of spring (2).
The most according to claim 1 a kind of can the terraced head of self-locking, it is characterised in that described spring (2) and elastomeric cords (3) are helical spring.
The most according to claim 1 a kind of can the terraced head of self-locking, it is characterized in that, described jointed shaft (4) is arranged on connection end or the upper rack posts (9) of coupler body (6), the lower end of closed rod (5) is articulated and connected with jointed shaft (4), and the lower end of closed rod (5) is positioned at the lower section of coupler body (6) free end, under spring (2) free state, the upper end of closed rod (5) is respectively positioned on the homonymy of described free side with the end that connects of the free side superimposed of coupler body (6) or the upper end of closed rod (5) and coupler body (6).
The most according to claim 1 a kind of can the terraced head of self-locking, it is characterised in that being additionally provided with the pulley (7) being positioned at the upper hook-shaped portion of coupler body (6) on described coupler body (6), the axis direction of described pulley (7) is positioned at the width in hook-shaped portion.
6. an electric power cable maintenance ladder, including maintenance ladder body, described maintenance ladder body includes two vertical rods and is arranged at the cross bar between two straight-bars, it is characterized in that, the upper end of described vertical rod is respectively connected with the terraced head as described in any one in claim 1-5, and the upper end of described vertical rod is fixing with described connecting rod (1) to be connected.
A kind of electric power cable maintenance ladder the most according to claim 6, it is characterised in that also include at least pull bar (8) being arranged between two vertical rod upper end ladder heads, the different ends of described pull bar (8) are fixing from different terraced heads respectively to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620478713.3U CN205638208U (en) | 2016-05-24 | 2016-05-24 | Ladder head that can lock by oneself and maintenance ladder who adopts this ladder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620478713.3U CN205638208U (en) | 2016-05-24 | 2016-05-24 | Ladder head that can lock by oneself and maintenance ladder who adopts this ladder head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205638208U true CN205638208U (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620478713.3U Expired - Fee Related CN205638208U (en) | 2016-05-24 | 2016-05-24 | Ladder head that can lock by oneself and maintenance ladder who adopts this ladder head |
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| Country | Link |
|---|---|
| CN (1) | CN205638208U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522824A (en) * | 2016-12-28 | 2017-03-22 | 国网浙江省电力公司湖州供电公司 | Soft ladder locking hook for 110kV electric transmission line |
| CN107317131A (en) * | 2016-12-29 | 2017-11-03 | 襄阳先义电力科技有限公司 | The high-low pressure clamp for ground wire of direction self adjusting |
-
2016
- 2016-05-24 CN CN201620478713.3U patent/CN205638208U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522824A (en) * | 2016-12-28 | 2017-03-22 | 国网浙江省电力公司湖州供电公司 | Soft ladder locking hook for 110kV electric transmission line |
| CN107317131A (en) * | 2016-12-29 | 2017-11-03 | 襄阳先义电力科技有限公司 | The high-low pressure clamp for ground wire of direction self adjusting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20170524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |