CN211473998U - Self-locking rope ladder head with pulley structure - Google Patents
Self-locking rope ladder head with pulley structure Download PDFInfo
- Publication number
- CN211473998U CN211473998U CN201921741628.1U CN201921741628U CN211473998U CN 211473998 U CN211473998 U CN 211473998U CN 201921741628 U CN201921741628 U CN 201921741628U CN 211473998 U CN211473998 U CN 211473998U
- Authority
- CN
- China
- Prior art keywords
- rope
- ladder head
- pulley
- plate
- sliding plate
- 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.)
- Active
Links
Images
Landscapes
- Ladders (AREA)
Abstract
The utility model relates to a pulley structure is from locking-type rope ladder head, including the rope ladder head body, install sliding plate (4) and fixed plate (1) on two ladder poles of this rope ladder head body respectively, install spring (2) between this sliding plate (4) and fixed plate (1), and this sliding plate (4) are connected with closing plate (5) of rope ladder head through the driving medium, thereby install rope (3) on sliding plate (4) and can open or close closing plate (5) of rope ladder head through tensile or loosen rope (3), its characteristics are: one end of a rope (3) is fixed on the sliding plate (4), and a pulley mechanism is arranged on the fixed plate (1), and the other end of the rope (3) passes through the pulley mechanism. The utility model discloses rope (3) and movable plate and fixed plate (1) contact mode to current rope ladder head of device have improved, specifically reduce the frictional force between rope (3) and fixed plate (1), draw and drag rope (3) more light convenient, avoid rope (3) to produce wearing and tearing, extension rope (3) life in the use simultaneously.
Description
Technical Field
The utility model relates to a pulley structure is from locking-type rope ladder head.
Background
The transmission line operation maintenance industry needs frequent operation of going up the tower and going up the wire, and the rope ladder head is a tool commonly used by operating personnel to go up the wire operation. A self-locking mechanism is arranged on the head of the existing rope ladder and is connected with a rope through a lever mechanism, a spring top plate and the rope. In a free state, the self-locking mechanism is in a closed state under the action of a spring force; when the rope ladder head needs to be hung, an operator pulls the rope and drives the spring top plate, the top plate compresses the spring and the lever mechanism to open the self-locking mechanism under the action of spring force; after the operating personnel hang the rope ladder head on the wire, loosen the rope, the self-locking mechanism is closed under the spring force effect, prevents that the rope ladder head from breaking away from the wire.
However, after long-term use, it is found that the friction force between the rope and the fixing plate is too large to pull the rope due to various reasons, or the abrasion between the rope and the fixing plate is serious after long-term use, which affects the use safety.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pulley structure is from locking-type rope ladder head can be when being convenient for the rope to draw and drag, and the protection rope does not receive wearing and tearing.
The utility model provides a pulley structure is from locking-type rope ladder head, includes rope ladder head body, installs sliding plate and fixed plate on two terraced poles of this rope ladder head body respectively, installs the spring between this sliding plate and fixed plate, and this sliding plate is connected with the closure plate of rope ladder head through the driving medium, thereby installs the rope on the sliding plate and can open or close the closure plate of rope ladder head through tensile or loosen the rope, its special character lies in: one end of a rope is fixed to the sliding plate, and a pulley mechanism, through which the other end of the rope passes, is installed to the fixed plate.
Wherein a U-shaped ring is arranged on the sliding plate beside the pulley mechanism so as to prevent the rope from falling off.
The pulley mechanism is specifically a fixed pulley or a pulley block consisting of a fixed pulley and a movable pulley.
The pulley mechanism is composed of 6 rollers which are arranged in a ring shape, the rope passes through the middle of the 6 rollers, and the gap between every two adjacent rollers is smaller than the diameter of the rope.
The utility model discloses the rope and movable plate and the fixed plate contact mode of device to current rope ladder head have improved, have installed one set of pulley structure on movable plate and fixed plate, make between rope and movable plate and the fixed plate through the pulley structure contact, and the frictional force when dragging the rope becomes rolling friction by sliding friction, when the rope of being convenient for is dragged, and the protection rope does not receive wearing and tearing, has increased rope life. The friction between the rope and the fixing plate is reduced, the rope is pulled easily and conveniently, abrasion of the rope in the using process is avoided, and the service life of the rope is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a schematic diagram of a pulley mechanism composed of six rollers 6 according to the present invention.
Detailed Description
As shown in fig. 1 and 2, the utility model provides a pulley structure is from locking-type rope ladder head, including rope ladder head body, install sliding plate 4 and fixed plate 1 on two ladder poles of this rope ladder head body respectively, install spring 2 between this sliding plate 4 and fixed plate 1, and this sliding plate 4 is connected with the closure panel 5 of rope ladder head through the driving medium, thereby install rope 3 on sliding plate 4 and can open or close the closure panel 5 of rope ladder head through tensile or loosen rope 3 the one end that is fixed with rope 3 on sliding plate 4, and install a pulley mechanism on fixed plate 1, the other end of this rope 3 passes from this pulley mechanism.
Wherein a U-shaped ring is arranged on the sliding plate 4 beside the pulley mechanism, so as to avoid the rope 3 from falling off, and the pulley mechanism is specifically a fixed pulley or a pulley block consisting of a fixed pulley and a movable pulley. Or as shown in fig. 3, wherein the pulley mechanism is specifically composed of 6 rollers 6 arranged in a ring shape, the rope 3 passes through the middle of the 6 rollers 6, and the gap between the adjacent 2 rollers 6 is smaller than the diameter of the rope 3, so as to avoid the rope 3 from falling off from the rollers 6.
The utility model discloses a use method and theory of operation are:
when the rope ladder head needs to be hung, an operator pulls the rope 3, the rope 3 drives the sliding plate 4, the sliding plate 4 compresses the spring 2, and the lever mechanism (transmission piece) opens the self-locking mechanism (the closed plate 5 at the head part of the rope ladder) under the action of the spring 2; after the operating personnel hang the rope ladder head on the wire, loosen the rope 3, the self-locking mechanism is closed under the action of the force of the spring 2, and the rope ladder head is prevented from being separated from the wire. When the rope 3 is pulled, the rope 3 is always in close contact with the pulley or the roller 6 and is in rolling friction, so that the rope 3 is protected, and the required force is reduced.
Claims (4)
1. The utility model provides a pulley structure is from locking-type rope ladder head, including rope ladder head body, install sliding plate (4) and fixed plate (1) on two terraced poles of this rope ladder head body respectively, install spring (2) between this sliding plate (4) and fixed plate (1), and this sliding plate (4) are connected with closing plate (5) of rope ladder head through the driving medium, thereby install rope (3) on sliding plate (4) and can open or close closing plate (5) of rope ladder head through tensile or loosen rope (3), its characterized in that: one end of a rope (3) is fixed on the sliding plate (4), and a pulley mechanism is arranged on the fixed plate (1), and the other end of the rope (3) passes through the pulley mechanism.
2. The pulley structure self-locking rope ladder head as claimed in claim 1, wherein: wherein a U-shaped ring is arranged on the sliding plate (4) beside the pulley mechanism so as to prevent the rope (3) from falling off.
3. The pulley structure self-locking rope ladder head as claimed in claim 1, wherein: the pulley mechanism is specifically a fixed pulley or a pulley block consisting of a fixed pulley and a movable pulley.
4. The pulley structure self-locking rope ladder head as claimed in claim 1, wherein: the pulley mechanism is composed of 6 rollers (6) which are arranged in a ring shape, the rope (3) passes through the middle of the 6 rollers (6), and the gap between every two adjacent rollers (6) is smaller than the diameter of the rope (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921741628.1U CN211473998U (en) | 2019-10-17 | 2019-10-17 | Self-locking rope ladder head with pulley structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921741628.1U CN211473998U (en) | 2019-10-17 | 2019-10-17 | Self-locking rope ladder head with pulley structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211473998U true CN211473998U (en) | 2020-09-11 |
Family
ID=72370906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921741628.1U Active CN211473998U (en) | 2019-10-17 | 2019-10-17 | Self-locking rope ladder head with pulley structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211473998U (en) |
-
2019
- 2019-10-17 CN CN201921741628.1U patent/CN211473998U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201478735U (en) | Automatic seal flip pulley | |
| CN203770987U (en) | Automatic lifting device of closed-circuit camera based on lifting high-pole lamp | |
| CN203411170U (en) | Tensioner | |
| CN211473998U (en) | Self-locking rope ladder head with pulley structure | |
| CN201523180U (en) | 500kV power transmission line overhead ground wire flying car | |
| CN203020322U (en) | Automatic uncoupling device of inclined shaft mine car | |
| CN103935861A (en) | Safety pincer device of pneumatic type speed governor | |
| CN104538896A (en) | Electric transmission line disengagement prevention overhead line pulley | |
| CN202897716U (en) | Elevator steel wire rope breaking protection device | |
| CN203197529U (en) | Belt conveyer belt replacement system | |
| CN202414950U (en) | Hoisting unload armour in safe operation | |
| CN203461654U (en) | Speed restriction trigger | |
| CN203461653U (en) | Elevator with gradual type anti-falling safety device | |
| CN207737968U (en) | A kind of belt conveyor tensile force decline protective device | |
| CN202348313U (en) | Air door interlocking rope tightening device | |
| CN207061730U (en) | Possesses the hoist engine of suspension hook supervising device | |
| CN202831741U (en) | Redundant cable configured anti-drop protector of elevating system of lifting and sideslip three-dimensional garage | |
| CN211168687U (en) | Belt conveyor tensile force reduction protection device | |
| CN201686364U (en) | Magnetic clutch device of mine rope guide safety catcher | |
| CN217972248U (en) | Steel wire rope protection device of hook pulley block | |
| CN215249068U (en) | Intelligent crane based on Internet of things | |
| CN212137638U (en) | Proximity switch positioning device | |
| CN215733451U (en) | Overhead traveling crane cable protector | |
| CN112290447B (en) | Device for reducing crossing construction risk of wire | |
| CN210577666U (en) | U-shaped ring convenient to use |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |