CN210682962U - Hook anti-unhooking device on crane - Google Patents
Hook anti-unhooking device on crane Download PDFInfo
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- CN210682962U CN210682962U CN201921846441.8U CN201921846441U CN210682962U CN 210682962 U CN210682962 U CN 210682962U CN 201921846441 U CN201921846441 U CN 201921846441U CN 210682962 U CN210682962 U CN 210682962U
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Abstract
The utility model discloses a couple mousing-hook device on hoist belongs to hoist technical field. A hook unhooking prevention device on a crane comprises a fire-fighting cabinet and a crane arm, wherein a hoisting assembly is connected to the crane arm, the crane arm is located at the upper end of the fire-fighting cabinet, a hoisting lifting device is arranged on the crane arm, an automatic hook collecting device is further arranged on the crane arm, one end of the crane arm is rotatably connected with a guide plate, the guide plate is matched with the hoisting assembly, a overwinding limiting weight is connected to the crane arm and is matched with the hoisting assembly, the overwinding limiting weight is connected with the hoisting assembly and is connected with the automatic hook collecting device, and a lifting hook is rotatably connected to the hoisting assembly; the utility model discloses can be to hoist and mount assembly and then pack up, effectually prevent that hoist and mount assembly and fire control cabinet from colliding mutually, can fix the guide hook simultaneously, and then prevent the lifting hook and hoist and mount assembly collision, the effectual life who increases lifting hook and wire rope.
Description
Technical Field
The utility model relates to a hoist technical field especially relates to a couple mousing-hook device on hoist.
Background
The crane refers to a multi-action hoisting machine for vertically lifting and horizontally carrying heavy objects within a certain range, and is also called a crown block, a navigation crane and a crane, and a part of the cranes are also provided with a fire-fighting cabinet.
The existing hook on the crane is not convenient to be folded, and then the hook on the crane is easy to collide with a fire-fighting cabinet during transportation, through retrieval, the patent application number is 201120329270.9, the publication number is CN202245714U, and the patent name is the automatic hook retracting device of the lifting hook. The utility model discloses as long as stir a special low pressure return circuit liquid level control rod, just can make automatic receipts hook of lifting hook, hoist oil motor automatic stop, lifting hook automatic positioning, the operation is light, laborsaving, and safe and reliable does not sway, does not shelter from driving sight, saves cargo space, promotes the quality and the technical performance of hoist.
Above-mentioned utility model discloses an automatic hook device of receiving of lifting hook can pack up the lifting hook, but packs up the completion back, and the guide hook still can rotate on hoist and mount assembly, and then in the transportation, the guide hook can be continuous collide with fixed hoist and mount assembly mutually, and then makes lifting hook or hoist and mount assembly damage, has reduced the life of lifting hook and hoist and mount assembly.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem of proposing in the above-mentioned background art, and the couple mousing-hook device on the hoist that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a hook unhooking prevention device on a crane comprises a fire-fighting cabinet and a crane arm, wherein a hoisting assembly is connected to the crane arm, the crane arm is located at the upper end of the fire-fighting cabinet, a hoisting lifting device is arranged on the crane arm, an automatic hook retracting device is further arranged on the crane arm, one end of the crane arm is rotatably connected with a guide plate, the guide plate is matched with the hoisting assembly, an overwinding limiting weight is connected to the crane arm, the overwinding limiting weight is matched with the hoisting assembly, and the overwinding limiting weight is connected with the automatic hook retracting device;
the lifting assembly is rotatably connected with a lifting hook, the crane arm is rotatably connected with a sliding block, the sliding block is rotatably connected with a fixed column, a sliding column is slidably connected in the fixed column, a cross plate is fixedly connected to the sliding column, a cross groove matched with the cross plate is formed in the lifting hook, a first spring is fixedly connected to one end, away from the lifting hook, of the sliding column, and the first spring is fixedly connected to the fixed column, away from the sliding column.
Preferably, the bottom of the crane arm is rotatably connected with a second telescopic rod, the fixed column is rotatably connected with a first telescopic rod, the first telescopic rod is slidably connected in the second telescopic rod, the first telescopic rod is close to a second spring fixedly connected with the second telescopic rod, and one end of the second spring, far away from the first telescopic rod, is fixedly connected to the second telescopic rod.
Preferably, one end fixedly connected with third spring of sliding block, the one end fixed connection that the sliding block was kept away from to the third spring is on the crane jib.
Preferably, the hoisting assembly is fixedly connected with a reinforcing plate, and the reinforcing plate is matched with the guide plate.
Preferably, a cushion pad is arranged at the joint of the guide plate and the hoisting assembly, and the guide plate is fixedly connected with the cushion pad.
Compared with the prior art, the utility model provides a couple mousing-hook device on hoist possesses following beneficial effect:
1. when a user uses the hook unhooking prevention device on the crane, when the user needs to retract the hook, the lifting hook is lifted through the lifting device, when the lifting assembly collides with the overwinding limit weight block, the overwinding limit switch is closed, the load electromagnetic valve is opened, hydraulic oil of the crane is unloaded and directly returns to the oil tank, the alarm buzzer rings at the moment, the lifting assembly is prompted to be overwinding, and at the moment, if the lifting device is continuously operated, the crane cannot act;
then controlling the automatic hook retracting device to operate at the moment, operating towards the hook retracting direction, when the automatic hook retracting device operates, powering off an unloading circuit, closing an unloading electromagnetic valve, not unloading hydraulic oil of the crane, enabling high-pressure oil to enter a distribution valve through an automatic hook retracting operation valve, then enabling a winch and an oil cylinder to work through oil mass distribution, and moving down a crane arm when a hoisting assembly rises;
when the hoisting assembly moves upwards to be attached to the guide plate, the contact area between the reinforcing plate arranged on the hoisting assembly and the guide plate can be increased, the buffer cushion arranged on the guide plate can prevent the hoisting assembly from being damaged in collision, the hoisting assembly slides with the guide plate under the action of the tension of the steel wire rope, the hoisting assembly rotates upwards and is folded, and the crane arm is located at the lowest position and is located at the upper end of the fire-fighting cabinet, so that the lifting hook and the hoisting assembly are not attached to the fire-fighting cabinet;
in the process of rotation of the hoisting assembly, the lifting hook is attached to the sliding column, when the hoisting assembly rotates, the lifting hook drives the sliding block to slide on the crane arm through the sliding column and the fixed column, the third spring extends, and the fixed column can form a certain angle with the crane arm in an initial state through the first telescopic rod, the second telescopic rod and the second spring, so that the sliding column can be conveniently inserted into the lifting hook;
when the lifting hook rotates in a shaking manner, the cross plate is clamped into the cross groove under the action of the first spring, and the chamfer is arranged on the cross plate, so that the cross plate and the cross groove can be clamped conveniently, the lifting hook can be prevented from shaking in the moving process, and the service life of the lifting hook is prolonged;
the single overflow valve is arranged on the automatic hook retracting device, the overflow pressure is low, and only the function of automatic hook retracting is played in the hook retracting process, so that the tension on the steel wire rope is reduced, and the service life of the steel wire rope is prolonged;
the part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can be to hoist and mount assembly and then pack up, effectually prevent that hoist and mount assembly and fire control cabinet from colliding mutually, can fix the guide hook simultaneously, and then prevent the lifting hook and hoist and mount assembly collision, the effectual life who increases lifting hook and wire rope.
Drawings
Fig. 1 is one of the schematic structural diagrams of a hook anti-unhooking device on a crane according to the present invention;
fig. 2 is a schematic structural view of a portion a in fig. 1 of a hook anti-unhooking device on a crane according to the present invention;
fig. 3 is a schematic sectional structure view of a hook anti-unhooking device on a crane according to the present invention;
fig. 4 is one of the schematic structural diagrams of a hook anti-unhooking device on a crane according to the present invention;
fig. 5 is a schematic structural diagram of a hook of the hook anti-unhooking device on a crane according to the present invention.
In the figure: 1. a fire-fighting cabinet; 2. a crane jib; 201. a guide plate; 202. hoisting the assembly; 2021. a reinforcing plate; 2022. overwinding limit weight blocks; 203. a hook; 2031. a cross groove; 3. fixing a column; 301. a sliding post; 3011. a first spring; 3012. a cross plate; 302. a first telescopic rod; 303. a second telescopic rod; 3031. a second spring; 304. a third spring; 3041. and a slider.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example (b):
referring to fig. 1-5, a hook unhooking prevention device on a crane comprises a fire-fighting cabinet 1 and a crane arm 2, wherein a hoisting assembly 202 is connected to the crane arm 2, the crane arm 2 is positioned at the upper end of the fire-fighting cabinet 1, a hoisting lifting device is arranged on the crane arm 2, an automatic hook retracting device is further arranged on the crane arm 2, one end of the crane arm 2 is rotatably connected with a guide plate 201, the guide plate 201 is matched with the hoisting assembly 202, an overwinding limit weight 2022 is connected to the crane arm 2, the overwinding limit weight 2022 is matched with the hoisting assembly 202, and the overwinding limit weight 2022 is connected with the automatic hook retracting device;
2 bottoms of crane arm rotate to be connected with second telescopic link 303, rotate on fixed column 3 to be connected with first telescopic link 302, and first telescopic link 302 sliding connection is in second telescopic link 303, and first telescopic link 302 is close to a disconnected fixedly connected with second spring 3031 of second telescopic link 303, and the one end fixed connection that first telescopic link 302 was kept away from to second spring 3031 is on second telescopic link 303.
One end of the sliding block 3041 is fixedly connected with a third spring 304, and one end of the third spring 304 away from the sliding block 3041 is fixedly connected to the crane arm 2.
The hoisting assembly 202 is fixedly connected with a reinforcing plate 2021, and the reinforcing plate 2021 is matched with the guide plate 201.
The junction of deflector 201 and hoist and mount assembly 202 is equipped with the blotter, and deflector 201 and blotter fixed link to each other.
When a user uses the lifting hook, when the lifting hook needs to be retracted, the lifting hook 203 is lifted through the lifting device, when the lifting assembly 202 collides with the overwinding limit weight 2022, the overwinding limit switch is closed, the load electromagnetic valve is opened, hydraulic oil of the crane is unloaded and directly returns to the oil tank, the alarm buzzer sounds at the moment, the lifting assembly 202 is prompted to be overwound, and at the moment, if the lifting device is continuously operated, the crane cannot act;
then the automatic hook retracting device is controlled to operate at the moment, the automatic hook retracting device operates towards the hook retracting direction, when the automatic hook retracting device operates, the unloading circuit is powered off, the unloading electromagnetic valve is closed, hydraulic oil of the crane is not unloaded, high-pressure oil enters the distribution valve through the automatic hook retracting operation valve, then the winch and the oil cylinder work through oil mass distribution, and the crane arm 2 moves downwards while the hoisting assembly 202 rises;
when the hoisting assembly 202 moves upwards to be attached to the guide plate 201, the reinforcing plate 2021 arranged on the hoisting assembly 202 can increase the contact area with the guide plate 201, and the cushion pad arranged on the guide plate 201 can prevent the hoisting assembly 202 from being damaged during impact, under the action of the tensile force of the steel wire rope, the hoisting assembly 202 slides with the guide plate 201, the hoisting assembly 202 rotates upwards and is retracted, and at the moment, the crane arm 2 is positioned at the lowest position and below the crane arm 2 and is positioned at the upper end of the fire-fighting cabinet 1, so that the lifting hook 203 and the hoisting assembly 202 are not attached to the fire-fighting cabinet 1;
in the process of rotation of the hoisting assembly 202, the hook 203 is attached to the sliding column 301, and when the hoisting assembly 202 rotates, the hook 203 drives the sliding block 3041 to slide on the crane arm 2 through the sliding column 301 and the fixed column 3, the third spring 304 extends, and the fixed column 3 can form a certain angle with the crane arm 2 in an initial state through the first telescopic rod 302, the second telescopic rod 303 and the second spring 3031, so that the sliding column 301 can be conveniently inserted into the hook 203;
when the lifting hook 203 is swung and rotated, under the action of the first spring 3011, the cross plate 3012 is clamped into the cross groove 2031, and the cross plate 3012 is provided with a chamfer, so that the cross plate 3012 and the cross groove 2031 can be conveniently clamped, the lifting hook 203 can be prevented from being swung in the moving process, and the service life of the lifting hook 203 is prolonged;
the single overflow valve is arranged on the automatic hook retracting device, the overflow pressure is low, and only the function of automatic hook retracting is played in the hook retracting process, so that the tension on the steel wire rope is reduced, and the service life of the steel wire rope is prolonged;
the utility model discloses can be to hoist and mount assembly 202 and then pack up, effectually prevent that hoist and mount assembly 202 from colliding with fire control cabinet 1 mutually, can fix the guide hook 203 simultaneously, and then prevent that lifting hook 203 from colliding with hoist and mount assembly 202, the effectual life who increases lifting hook 203 and wire rope.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. A hook unhooking prevention device on a crane comprises a fire-fighting cabinet (1) and a crane arm (2), wherein a hoisting assembly (202) is connected to the crane arm (2), the crane arm (2) is located at the upper end of the fire-fighting cabinet (1), and a hoisting lifting device is arranged on the crane arm (2), and the hook unhooking prevention device is characterized in that an automatic hook retracting device is further arranged on the crane arm (2), one end of the crane arm (2) is rotatably connected with a guide plate (201), the guide plate (201) is matched with the hoisting assembly (202), an overwinding limiting weight block (2022) is connected to the crane arm (2), the overwinding limiting weight block (2022) is matched with the hoisting assembly (202), and the overwinding limiting weight block (2022) is connected with the automatic hook retracting device;
the lifting assembly (202) is connected with a lifting hook (203) in a rotating mode, a sliding block (3041) is connected to a crane arm (2) in a sliding mode, a fixing column (3) is connected to the sliding block (3041) in a rotating mode, a sliding column (301) is connected to the fixing column (3) in the sliding mode, a cross plate (3012) is fixedly connected to the sliding column (301), a cross groove (2031) matched with the cross plate (3012) is formed in the lifting hook (203), a first spring (3011) is fixedly connected to one end, far away from the lifting hook (203), of the sliding column (301) of the sliding column (3011), and one end, far away from the sliding column (301), of the first spring (3011) is fixedly connected.
2. The hook anti-unhooking device on the crane according to claim 1, wherein a second telescopic rod (303) is rotatably connected to the bottom of the crane arm (2), a first telescopic rod (302) is rotatably connected to the fixed column (3), the first telescopic rod (302) is slidably connected in the second telescopic rod (303), a second spring (3031) is fixedly connected to one end, close to the second telescopic rod (303), of the first telescopic rod (302), and one end, far away from the first telescopic rod (302), of the second spring (3031) is fixedly connected to the second telescopic rod (303).
3. A hook anti-unhooking device on a crane according to claim 2, wherein one end of the sliding block (3041) is fixedly connected with a third spring (304), and one end of the third spring (304) far away from the sliding block (3041) is fixedly connected with the crane arm (2).
4. The hook anti-unhooking device on a crane according to claim 1, wherein a reinforcing plate (2021) is fixedly connected to the hoisting assembly (202), and the reinforcing plate (2021) is matched with the guide plate (201).
5. The hook anti-unhooking device on a crane according to claim 4, wherein a buffer pad is arranged at the joint of the guide plate (201) and the hoisting assembly (202), and the guide plate (201) is fixedly connected with the buffer pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921846441.8U CN210682962U (en) | 2019-10-30 | 2019-10-30 | Hook anti-unhooking device on crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921846441.8U CN210682962U (en) | 2019-10-30 | 2019-10-30 | Hook anti-unhooking device on crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210682962U true CN210682962U (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921846441.8U Active CN210682962U (en) | 2019-10-30 | 2019-10-30 | Hook anti-unhooking device on crane |
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| Country | Link |
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| CN (1) | CN210682962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113896094A (en) * | 2021-10-26 | 2022-01-07 | 广州文冲船厂有限责任公司 | Marine material hangs lifting hook solid locking mechanism |
-
2019
- 2019-10-30 CN CN201921846441.8U patent/CN210682962U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113896094A (en) * | 2021-10-26 | 2022-01-07 | 广州文冲船厂有限责任公司 | Marine material hangs lifting hook solid locking mechanism |
| CN113896094B (en) * | 2021-10-26 | 2024-01-30 | 广州文冲船厂有限责任公司 | Marine material hanging hook locking mechanism |
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