CN212740427U - Self-locking structure of lifting hook for tower crane - Google Patents
Self-locking structure of lifting hook for tower crane Download PDFInfo
- Publication number
- CN212740427U CN212740427U CN202021185056.6U CN202021185056U CN212740427U CN 212740427 U CN212740427 U CN 212740427U CN 202021185056 U CN202021185056 U CN 202021185056U CN 212740427 U CN212740427 U CN 212740427U
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- China
- Prior art keywords
- fixedly connected
- lifting hook
- slide bar
- sliding tray
- rod
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- Expired - Fee Related
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- 230000001174 ascending effect Effects 0.000 claims abstract description 5
- 210000001503 joint Anatomy 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of tower cranes, and aims to provide a self-locking structure of a lifting hook for a tower crane, the key points of the technical proposal are that the device comprises a pulley seat and a lifting hook, the lifting hook comprises a fixed rod fixedly connected with the bottom of the pulley seat, the bottom end of the fixed rod is fixedly connected with a horizontal bottom rod, the end part of the bottom rod is fixedly connected with a connecting rod which is vertically upward, the inner wall of the fixed rod opposite to the connecting rod is respectively provided with a first vertical sliding groove and a second vertical sliding groove, a sliding rod is arranged in the lifting hook, its both ends sliding connection is in first sliding tray and second sliding tray, fixedly connected with first spring between the bottom of first sliding tray and the lower surface of slide bar, and fixedly connected with second spring between the bottom of second sliding tray and the lower surface of slide bar, the slide bar is located the vertical ascending slide bar of tip fixedly connected with of first sliding tray, and the top fixedly connected with horizontally gag lever post of slide bar. The utility model discloses can effectively prevent droing of lifting rope.
Description
Technical Field
The utility model relates to a tower crane technical field, more specifically say, it relates to a self-locking structure of lifting hook for tower crane.
Background
The tower crane, called tower crane for short, also called tower crane, originated from western europe, has a large operation space, is mainly used for vertical and horizontal conveying of materials and installation of building components in building construction, and is composed of a metal structure, a working mechanism and an electrical system, wherein the metal structure comprises a tower body, a movable arm, a base and the like, the working mechanism has four parts of lifting, amplitude changing, rotation and walking, and the electrical system comprises a motor, a controller, a power distribution cabinet, a connecting circuit, a signal and lighting device and the like.
When a rope connected with a heavy object is hoisted by a lifting hook of the existing tower crane, the lifting rope is easy to slide in the lifting hook, and the safety of hoisting work is influenced.
SUMMERY OF THE UTILITY MODEL
To the deficiencies of the prior art, an object of the utility model is to provide a self-locking structure of lifting hook for tower crane.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a self-locking structure of lifting hook for tower crane, includes pulley holder and lifting hook, the lifting hook includes fixed connection in the dead lever of pulley holder bottom, the bottom fixed connection of dead lever has the horizontally sill bar, the vertical ascending connecting rod of tip fixedly connected with of sill bar, vertical first sliding tray and second sliding tray have been seted up respectively to the inner wall that the dead lever is relative with the connecting rod, are provided with the slide bar in the lifting hook, and its both ends sliding connection is in first sliding tray and second sliding tray, the first spring of fixedly connected with between the bottom of first sliding tray and the lower surface of slide bar, fixedly connected with second spring between the bottom of second sliding tray and the lower surface of slide bar, the slide bar is located the vertical ascending slide bar of the tip fixedly connected with of first sliding tray, the top fixed connection of slide bar has the horizontally gag lever post.
Through adopting above-mentioned technical scheme, when carrying out the hoist and mount operation, hang into the lifting hook between connecting rod and the pulley seat with the lifting rope in, the lifting rope is hung on the surface of slide bar, under the action of gravity of lifting rope and heavy object, drives the slide bar and slides down to drive the gag lever post downstream, the tip of gag lever post and the tip butt of connecting rod, thereby the effectual lifting rope of placing takes place the obscission, in order to guarantee the stability of hoist and mount operation.
The utility model discloses further set up to: the second sliding groove penetrates through the top end of the connecting rod and is used for the limiting rod to slide in, a pin shaft hole is formed in the side wall of the connecting rod, a pin shaft is inserted into the pin shaft hole, and a positioning hole for inserting the pin shaft is formed in the end portion of the sliding rod.
Through adopting above-mentioned technical scheme, when the gag lever post lapse and its tip entered into the second sliding tray, through inserting round pin axle to play the positioning action to the gag lever post, further promote the stability of lifting rope when hoist and mount operation, when accomplishing hoist and mount, extract the round pin axle under the effect of spring force, the gag lever post resets, is convenient for carry out hoist and mount operation next time to it.
The utility model discloses further set up to: the upper surface of the bottom rod is fixedly connected with a butt joint block, and the upper surface of the butt joint block is fixedly connected with a cushion pad.
Through adopting above-mentioned technical scheme, when carrying out the hoist and mount operation for the lower surface of slide bar supports tightly in the upper surface of butt piece, and its stability when further promoting the hoist and mount operation through the blotter.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of the present invention;
fig. 3 is a schematic cross-sectional view of the working state of the present invention.
Detailed Description
Embodiments of the present invention are further described with reference to fig. 1 to 3.
A self-locking structure of a lifting hook for a tower crane comprises a pulley seat 1 and the lifting hook 2, wherein the lifting hook 2 comprises a fixed rod 3 fixedly connected with the bottom of the pulley seat 1, the bottom end of the fixed rod 3 is fixedly connected with a horizontal bottom rod 4, the end part of the bottom rod 4 is fixedly connected with a vertical and upward connecting rod 5, the inner wall of the fixed rod 3 opposite to the connecting rod 5 is respectively provided with a vertical first sliding groove 6 and a vertical second sliding groove 7, a sliding rod 8 is arranged in the lifting hook 2, the two ends of the sliding rod are connected in a first sliding groove 6 and a second sliding groove 7 in a sliding mode, a first spring 9 is fixedly connected between the bottom of the first sliding groove 6 and the lower surface of the sliding rod 8, a second spring 10 is fixedly connected between the bottom of the second sliding groove 7 and the lower surface of the sliding rod 8, a vertical upward sliding rod 11 is fixedly connected to the end portion, located in the first sliding groove 6, of the sliding rod 8, and a horizontal limiting rod 12 is fixedly connected to the top end of the sliding rod 11.
When carrying out the hoist and mount operation, hang into lifting hook 2 with the lifting rope from between connecting rod 5 and pulley yoke 1 in, the lifting rope hangs in the surface of slide bar 8, under the action of gravity of lifting rope and heavy object, drives slide bar 8 lapse to drive gag lever post 12 downstream, the tip of gag lever post 12 and the tip butt of connecting rod 5, thereby the effectual lifting rope of placing takes place the obscission, in order to guarantee the stability of hoist and mount operation.
Second sliding tray 7 runs through in the top of connecting rod 5 and supplies gag lever post 12 to slide in, round pin axle hole 13 has been seted up to the lateral wall of connecting rod 5 and has been inserted and be equipped with round pin axle 14, supply round pin axle 14 male locating hole 15 has been seted up to the tip of slide bar 8, when gag lever post 12 lapse and its tip entered into second sliding tray 7, through inserting round pin axle 14, thereby play the positioning action to gag lever post 12, further promote the stability of lifting rope when hoist and mount operation, when accomplishing the hoist and mount, extract round pin axle 14 under the effect of first spring and second spring elasticity, gag lever post 12 resets, be convenient for carry out hoist and mount operation next time to it.
The last fixed surface of sill bar 4 is connected with butt piece 15, and the last fixed surface of butt piece is connected with blotter 16 for when carrying out the hoist and mount operation, make the lower surface of slide bar 8 support tightly in the upper surface of butt piece, and its stability when further promoting hoist and mount operation through the blotter.
The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and the skilled in the art can carry out the common changes and replacements within the technical solution of the present invention.
Claims (3)
1. The utility model provides a self-locking structure of lifting hook for tower crane, includes pulley holder and lifting hook, characterized by: the lifting hook includes fixed connection in the dead lever of pulley holder bottom, the bottom fixed connection of dead lever has the horizontally sill bar, the vertical ascending connecting rod of tip fixedly connected with of sill bar, vertical first sliding tray and second sliding tray have been seted up respectively to the inner wall that the dead lever is relative with the connecting rod, are provided with the slide bar in the lifting hook, and its both ends sliding connection is in first sliding tray and second sliding tray, the first spring of fixedly connected with between the bottom of first sliding tray and the lower surface of slide bar, the second spring of fixedly connected with between the bottom of second sliding tray and the lower surface of slide bar, the slide bar is located the vertical ascending slide bar of tip fixedly connected with of first sliding tray, the top fixed connection of slide bar has the horizontally gag lever post.
2. The self-locking structure of the lifting hook for the tower crane according to claim 1, wherein: the second sliding groove penetrates through the top end of the connecting rod and is used for the limiting rod to slide in, a pin shaft hole is formed in the side wall of the connecting rod, a pin shaft is inserted into the pin shaft hole, and a positioning hole for inserting the pin shaft is formed in the end portion of the sliding rod.
3. The self-locking structure of the lifting hook for the tower crane according to claim 2, wherein: the upper surface of the bottom rod is fixedly connected with a butt joint block, and the upper surface of the butt joint block is fixedly connected with a cushion pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021185056.6U CN212740427U (en) | 2020-06-23 | 2020-06-23 | Self-locking structure of lifting hook for tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021185056.6U CN212740427U (en) | 2020-06-23 | 2020-06-23 | Self-locking structure of lifting hook for tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212740427U true CN212740427U (en) | 2021-03-19 |
Family
ID=75010614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021185056.6U Expired - Fee Related CN212740427U (en) | 2020-06-23 | 2020-06-23 | Self-locking structure of lifting hook for tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212740427U (en) |
-
2020
- 2020-06-23 CN CN202021185056.6U patent/CN212740427U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210319 |