CN215326449U - Crane lifting appliance with automatic unhooking function - Google Patents
Crane lifting appliance with automatic unhooking function Download PDFInfo
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- CN215326449U CN215326449U CN202121811824.9U CN202121811824U CN215326449U CN 215326449 U CN215326449 U CN 215326449U CN 202121811824 U CN202121811824 U CN 202121811824U CN 215326449 U CN215326449 U CN 215326449U
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- lifting hook
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Abstract
The application relates to a hoist with automatic unhook function belongs to hoist technical field, and it includes the lifting hook rotates with the installation piece to be connected, one side that the gib head was kept away from to the lifting hook is provided with electric telescopic handle, electric telescopic handle's one end is articulated mutually with the lifting hook, electric telescopic handle's the other end is articulated mutually with the installation piece, electric telescopic handle electricity is connected with the controller. This application has the effect that reduces staff's work load.
Description
Technical Field
The application relates to the field of cranes, in particular to a crane lifting appliance with an automatic unhooking function.
Background
The crane refers to a hoisting machine for vertically lifting or horizontally carrying a heavy object within a certain range, and the hook is a common hanger in the crane and is generally hung on a steel wire rope of the crane through a pulley block and other parts.
As shown in fig. 1, in the related art, a crane spreader includes a mounting block 2 and a hook 21 fixed to the mounting block 2, a fixed sheave 22 is installed in the mounting block 2, and a wire rope abuts on a side of the fixed sheave 22 close to the mounting block 2.
When the heavy object is carried by the crane, a worker firstly hooks the rope on the heavy object on the hook 21, then starts the crane to carry the heavy object, and when the heavy object reaches a specified place, the worker is required to take the rope on the heavy object off the hook 21.
In view of the above-mentioned related art, the inventor believes that when a plurality of weights at the same location are transported to different positions, a worker needs to walk around to remove the rope on the weight from the hook 21, which is time-consuming and labor-consuming in the operation process.
SUMMERY OF THE UTILITY MODEL
In order to reduce staff's work load, this application provides a hoist with automatic unhook function.
The application provides a hoist with automatic unhook function adopts following technical scheme:
the utility model provides a hoist with automatic unhook function, the lifting hook rotates with the installation piece to be connected, one side that the gib head was kept away from to the lifting hook is provided with electric telescopic handle, electric telescopic handle's one end is articulated mutually with the lifting hook, electric telescopic handle's the other end is articulated mutually with the installation piece, the electric telescopic handle electricity is connected with the controller, the controller electricity is connected with the control that control electric telescopic handle opened and closed.
Through adopting above-mentioned technical scheme, after the heavy object reachd the appointed place, the staff presses the control, the control sends action information and gives the controller, controller control electric telescopic handle starts to make electric telescopic handle's piston rod begin to shrink, the lifting hook rotates towards electric telescopic handle's direction this moment, when the gib head of lifting hook leaned down, the rope on the heavy object breaks away from the lifting hook, realizes automatic unhooking, thereby reduce the work load that the staff made a round trip to walk about and take off the rope from the lifting hook on with the heavy object.
Optionally, a pressure sensor is arranged on the inner side of the lifting hook, the pressure sensor is electrically connected with a controller, and the controller is electrically connected with an alarm.
Through adopting above-mentioned technical scheme, be equipped with threshold value weight on the controller, when the heavy object hook was hung on the lifting hook, the weight that the controller received pressure sensor and sent was compared with threshold value weight, and when the weight was higher than threshold value weight, the controller controlled the siren and sent out the police dispatch newspaper to the weight of this heavy object of suggestion staff exceeded threshold value weight.
Optionally, one side of the mounting block, which is close to the hook head, is provided with a limiting assembly for preventing unhooking in the carrying process.
Through adopting above-mentioned technical scheme, carry on spacingly through setting up spacing subassembly to the rope on the lifting hook, reduce the possibility that the rope on the heavy object breaks away from the lifting hook when utilizing the hoist to carry the heavy object, and then improve the security.
Optionally, the limiting assembly comprises a fixing plate which is fixed on the installation block and is vertically arranged, one side, away from the installation block, of the fixing plate is hinged to a baffle, the baffle is located in the lifting hook, a torsional spring is arranged at the hinged position of the baffle and the fixing plate, and the baffle rotates towards one side of the electric telescopic rod.
Through adopting above-mentioned technical scheme, carry on spacingly through setting up fixed plate and baffle rope on to the lifting hook, the torsional spring makes the baffle support tightly on the lifting hook to reduce the possibility that the rope on the heavy object breaks away from the couple in handling.
Optionally, one side of the baffle, which is far away from the mounting block, is matched with the radian of the lifting hook.
Through adopting above-mentioned technical scheme, because the radian looks adaptation of baffle and couple to make the laminating of baffle and couple inseparabler, and then reduce the rope on the heavy object from the possibility of landing between baffle and the couple.
Optionally, the lifting hook is ironwork, the electromagnet is installed on one side of the baffle close to the lifting hook, and the electromagnet is electrically connected with the controller.
Through adopting above-mentioned technical scheme, through the break-make electricity of controller control electro-magnet, when the hoist carried the heavy object, the electro-magnet circular telegram of controller control made the baffle closely laminate on the couple to the compactness between reinforcing lifting hook and the baffle.
Optionally, the inner side of the lifting hook is fixedly connected with an anti-skid rubber pad.
Through adopting above-mentioned technical scheme, keep away from the ground in the heavy object the twinkling of an eye, the rope on the heavy object may take place to slide on the lifting hook, through setting up anti-skidding rubber pad, reduces the rope on the heavy object and takes place gliding possibility, and then improves the stability of heavy object.
Optionally, a camera is installed on the installation block, the camera is electrically connected with the controller, and the controller is electrically connected with the display.
Through adopting above-mentioned technical scheme, the staff passes through the display and observes the crane in real time and carries the surrounding environment of heavy object to carry the accurate transport of heavy object to appointed place.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the control piece is pressed by a worker, the control piece sends action information to the controller, the controller receives the action information and controls the electric telescopic rod to start, the lifting hook rotates towards the direction close to the electric telescopic rod, when the lifting hook inclines downwards, a rope on a heavy object is separated from the lifting hook, automatic unhooking is achieved, and therefore the workload that the worker walks back and forth to take the rope on the heavy object down from the lifting hook is reduced;
2. when the weight is hung on the hook, the controller receives the weight sent by the pressure sensor, and when the weight is higher than the threshold weight, the controller controls the alarm to give an alarm to prompt a worker that the weight of the weight exceeds the threshold weight;
3. carry on spacingly through setting up the rope on the spacing subassembly to the lifting hook, reduce the possibility that the rope on the heavy object breaks away from the lifting hook when utilizing the hoist to carry the heavy object, and then improve the security.
Drawings
Fig. 1 is a schematic structural view showing a mounting block and a hook in the related art.
Fig. 2 is a schematic structural diagram of the present embodiment showing the electric telescopic rod, the hook, and the mounting block.
Fig. 3 is a block diagram showing the structure of the presentation control section in the present embodiment.
Fig. 4 is a schematic structural diagram showing the automatic unhooking state of the spreader in the embodiment.
Fig. 5 is a schematic structural diagram of the limiting assembly in this embodiment.
Description of reference numerals: 1. a button; 11. an alarm; 12. a camera; 13. a display; 2. mounting blocks; 21. a hook; 211. a second fixed block; 212. an anti-skid rubber pad; 213. an electromagnet; 214. a placement groove; 215. a pressure sensor; 22. a fixed pulley; 23. a first fixed block; 24. an electric telescopic rod; 25. a controller; 3. a limiting component; 31. a fixing plate; 32. a baffle plate; 33. a torsion spring.
Detailed Description
The present application is described in further detail below with reference to figures 2-5.
The embodiment of the application discloses hoist with automatic unhook function. Referring to fig. 2 and 3, the crane sling is used for a crane to carry heavy objects, the crane includes an operation room (not shown in the figures), the crane sling includes a mounting block 2, a hook 21 is hinged on the mounting block 2, the hook 21 is made of iron, a fixed pulley 22 is rotatably connected in the mounting block 2, and the fixed pulley 22 is used for being connected with a steel wire rope on the crane. One side of the mounting block 2 far away from the hook head is fixedly connected with a first fixing block 23, the lifting hook 21 is fixedly connected with a second fixing block 211, and the first fixing block 23 and the second fixing block 211 are arranged on the same side of the mounting block 2 and the lifting hook 21. An electric telescopic rod 24 is arranged between the first fixing block 23 and the second fixing block 211, two ends of the electric telescopic rod 24 are respectively hinged to the first fixing block 23 and the second fixing block 211, the electric telescopic rod 24 is electrically connected with a controller 25, a control member for controlling the electric telescopic rod 24 to be started and closed is installed in the operating room, the control member is a button 1 in the embodiment, and the button 1 is electrically connected with the controller 25.
Referring to fig. 3 and 4, when the crane carries a heavy object to a designated location through the hook 21, a worker presses the button 1, the button 1 sends action information to the controller 25, the controller 25 receives the action information and controls the electric telescopic rod 24 to start, the extension rod of the electric telescopic rod 24 starts to contract, at this time, the electric telescopic rod 24 drives the hook 21 to rotate towards the first fixed block 23, when the hook head of the hook 21 rotates to be inclined downwards, a rope on the heavy object is separated from the hook 21, and therefore the workload that the worker needs to walk back and forth to take the rope off the hook 21 is reduced.
Referring to fig. 4 and 5, one side that installation piece 2 is close to the gib head is provided with spacing subassembly 3, spacing subassembly 3 is including fixing the fixed plate 31 of fixing on installation piece 2 and vertical setting, one side that installation piece 2 was kept away from to fixed plate 31 articulates there is baffle 32, one side and the lifting hook 21 looks adaptation of fixed plate 31 are kept away from to baffle 32, the cover is equipped with torsional spring 33 in the pivot of installation piece 2 and the articulated department of lifting hook 21, the one end of torsional spring 33 is fixed on fixed plate 31, the other end of torsional spring 33 is fixed on baffle 32, and baffle 32 rotates towards the direction of first fixed block 23.
When the hoist carried the heavy object, carry on spacingly to the rope of hooking on lifting hook 21 through installation piece 2 and baffle 32, reduce the hoist when carrying the heavy object, the rope on the heavy object breaks away from the possibility of lifting hook 21, and then improves the security.
When a rope on a heavy object is hooked on the lifting hook 21, the baffle 32 is pushed to rotate towards the direction of the first fixing block 23, a certain gap exists between the baffle 32 and the lifting hook 21, and a worker can hook the rope on the heavy object on the lifting hook 21 through the gap; when the hands of the worker leave the hook 21 and the flap 32, the flap 32 is pressed against the hook 21 by the torsion spring 33.
The anti-skid rubber pad 212 is fixedly connected to the inner side of the lifting hook 21, so that the possibility that the rope on the weight slides on the lifting hook 21 at the moment when the crane carries the weight away from the ground is reduced, and the stability of the weight is further enhanced.
Referring to fig. 3 and 5, an electromagnet 213 is installed on the side of the shutter 32 close to the hook 21, and the electromagnet 213 is electrically connected to the controller 25. In the process of carrying heavy objects by the crane, the controller 25 controls the electromagnet 213 to be electrified, so that the baffle 32 is tightly attached to the hook 21, the possibility that the baffle 32 is separated from the hook 21 to cause the rope on the heavy objects to slide from the position between the baffle 32 and the hook 21 is reduced, and the safety of the crane in carrying heavy objects is further enhanced.
A placement groove 214 is formed on the inner side of the hook 21, a pressure sensor 215 is mounted inside the placement groove 214, the pressure sensor 215 is electrically connected to the controller 25, the alarm 11 is mounted in the operation room, the alarm 11 is electrically connected to the controller 25, and when the rope on the weight is hooked on the hook 21, the pressure sensor 213 can detect the weight of the weight through the anti-slip rubber pad 212. The controller 25 is provided with a threshold weight for the hook 21 to pull the heavy object in advance, the pressure sensor 215 sends the detected weight to the controller 25, the controller 25 compares the received weight with the threshold weight, and when the weight of the heavy object exceeds the threshold weight, the controller 25 controls the alarm 11 to give an alarm to prompt a worker to carry the heavy object exceeding the threshold weight, so that the safety of the crane in carrying the heavy object is improved.
The camera 12 used for observing the carrying environment is installed on the installation block 2, the camera 12 is electrically connected with the controller 25, the output end of the controller 25 is electrically connected with the display 13 used for displaying the real-time image of the camera 12, and therefore workers can accurately place heavy objects to a designated place conveniently.
In this embodiment, the pressure sensor 215 may be a pressure sensor model DYHW-108, the alarm may be an audible and visual alarm model ML-20/5101, and the display 13 may be an LED display screen.
The implementation principle of the crane sling with the automatic unhooking function in the embodiment of the application is as follows:
when a crane is used for carrying heavy objects, a worker firstly rotates the baffle 32 towards the direction of the first fixing block 23, a certain gap exists between the baffle 32 and the lifting hook 21, a rope on the heavy objects is hooked on the lifting hook 21 through the gap between the baffle 32 and the lifting hook 21, and the controller 25 controls the electromagnet 213 to be electrified, so that the baffle 32 is tightly attached to the lifting hook 21.
The worker observes the environment and the position of carrying the heavy object through the display 14, when the heavy object arrives at a designated place and is positioned on the ground, the worker presses the button 1, at the moment, the controller 25 controls the electromagnet 213 to be powered off, the controller 25 controls the electric telescopic rod 24 to be started, the piston rod of the electric telescopic rod 24 is contracted, the lifting hook 21 is driven to rotate towards the direction of the first fixing block 23, at the moment, the baffle 32 gradually rotates under the thrust action of the lifting hook 21 until the baffle 32 is completely separated from the lifting hook 21; when the hook 21 is rotated to a certain angle, the rope on the weight is disengaged from the hook 21.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a hoist with automatic unhook function, includes installation piece (2) and lifting hook (21), its characterized in that: lifting hook (21) are rotated with installation piece (2) and are connected, one side that the gib head was kept away from in lifting hook (21) is provided with electric telescopic handle (24), the one end and lifting hook (21) of electric telescopic handle (24) are articulated mutually, the other end and the installation piece (2) of electric telescopic handle (24) are articulated mutually, electric telescopic handle (24) electricity is connected with controller (25), controller (25) electricity is connected with control that control electric telescopic handle (24) opened and closed.
2. The crane sling with the automatic unhooking function as recited in claim 1, wherein: the inner side of the lifting hook (21) is provided with a pressure sensor (215), the pressure sensor (215) is electrically connected with a controller (25), and the controller (25) is electrically connected with an alarm (11).
3. The crane sling with the automatic unhooking function as recited in claim 1, wherein: one side of the mounting block (2) close to the hook head of the lifting hook (21) is provided with a limiting component (3) for preventing unhooking in the carrying process.
4. The crane sling with automatic unhooking function as claimed in claim 3, wherein: spacing subassembly (3) including fixing fixed plate (31) on installation piece (2) and vertical setting, one side that installation piece (2) were kept away from in fixed plate (31) articulates there is baffle (32), baffle (32) are located lifting hook (21), baffle (32) are provided with torsional spring (33) with the articulated department of fixed plate (31), and baffle (32) rotate towards electric telescopic handle (24) one side.
5. The crane spreader with automatic unhooking function according to claim 4, wherein: one side of the baffle (32) far away from the mounting block (2) is matched with the radian of the lifting hook (21).
6. The crane spreader with automatic unhooking function according to claim 4, wherein: lifting hook (21) are ironwork, electro-magnet (213) are installed to one side that baffle (32) are close to lifting hook (21), electro-magnet (213) are connected with controller (25) electricity.
7. The crane sling with the automatic unhooking function as recited in claim 1, wherein: the inner side of the lifting hook (21) is fixedly connected with an anti-skid rubber pad (212).
8. The crane sling with the automatic unhooking function as recited in claim 1, wherein: install camera (12) on installation piece (2), camera (12) are connected with controller (25) electricity, controller (25) electricity is connected with display (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121811824.9U CN215326449U (en) | 2021-08-04 | 2021-08-04 | Crane lifting appliance with automatic unhooking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121811824.9U CN215326449U (en) | 2021-08-04 | 2021-08-04 | Crane lifting appliance with automatic unhooking function |
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| Publication Number | Publication Date |
|---|---|
| CN215326449U true CN215326449U (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121811824.9U Active CN215326449U (en) | 2021-08-04 | 2021-08-04 | Crane lifting appliance with automatic unhooking function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114411628A (en) * | 2022-01-25 | 2022-04-29 | 望江县水电建筑安装有限责任公司 | Reservoir removes dangerous reinforced structure |
| WO2023130685A1 (en) * | 2022-01-04 | 2023-07-13 | 三一海洋重工有限公司 | Lifting hook device, lifting appliance and lifting apparatus |
-
2021
- 2021-08-04 CN CN202121811824.9U patent/CN215326449U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023130685A1 (en) * | 2022-01-04 | 2023-07-13 | 三一海洋重工有限公司 | Lifting hook device, lifting appliance and lifting apparatus |
| CN114411628A (en) * | 2022-01-25 | 2022-04-29 | 望江县水电建筑安装有限责任公司 | Reservoir removes dangerous reinforced structure |
| CN114411628B (en) * | 2022-01-25 | 2022-08-16 | 望江县水电建筑安装有限责任公司 | Reservoir removes dangerous reinforced structure |
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