Lifting hook fixing device for crane

Abstract

The utility model relates to the technical field of hoisting equipment, in particular to a lifting hook fixing device for a crane, which comprises a base, a containing groove is arranged in the middle of the base, a telescopic rod is arranged in the containing groove, the top of the telescopic rod is fixedly connected with a lock hook, the bottom of the telescopic rod is fixedly connected with a pin shaft, and the pin shaft is rotatably connected with one end of the containing groove. The telescopic rod can rotate to be perpendicular to or parallel to the base through the pin shaft, when the telescopic rod is parallel to the base, the telescopic rod and the lock hook are both located in the containing groove, and compared with the prior art, according to the technical scheme, erosion of air and rainwater is avoided, the service life is prolonged, and meanwhile the practicability of the fixing device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a hook fixing device for a crane. Background Art

[0002] Marine cranes are large deck machinery on ships. They are equipment for loading and unloading cargo. Marine cranes installed on ship decks have flexible wire ropes wound around the lifting hooks. When the ship shakes during operation, the lifting hooks will also shake. When a marine crane is horizontally laid up in a non-working state, in the event of severe weather such as strong winds and waves, the lifting hooks will shake more violently, and it is easy to hit the cargo, hull, personnel, etc. around the lifting hooks, causing safety accidents and posing certain safety hazards.

[0003] The existing fixing device for fixing the hook uses a steel wire rope to bolt the hook and the lock hook fixed on the deck together. The base is vertically arranged below the hook with a certain height between the two. The hook and the lock hook can be relatively fixed by the steel wire rope without shaking. However, the lock hook of this fixing device is exposed to the air whether in working state or non-working state. The lock hook is easily corroded and damaged by the long-term erosion of the humid air and rain at sea, and its service life is reduced. Moreover, the lock hook fixed on the deck in the non-working state may trip the crew. The practicality of the fixing device needs to be improved.

[0004] Therefore, it is necessary to propose a crane hook fixing device to improve the practicality of the fixing device while avoiding erosion by air, rainwater, etc. Utility Model Content

[0005] The utility model aims to solve the problems that the existing hook fixing device has a short service life and needs to improve its practicability, and now provides a hook fixing device for a crane.

[0006] The technical solution of the utility model is:

[0007] A hook fixing device for a crane comprises a base, a storage groove is formed in the middle of the base, a telescopic rod is arranged in the storage groove, a locking hook is fixedly connected to the top of the telescopic rod, a pin is fixedly connected to the bottom of the telescopic rod, the pin is rotatably connected to one end of the storage groove, the telescopic rod can be rotated to be perpendicular or parallel to the base through the pin, and when the telescopic rod is parallel to the base, the telescopic rod and the locking hook are both located in the storage groove.

[0008] Furthermore, the telescopic rod includes a connecting rod, a support rod and a fixed rod, the connecting rod is located between the support rod and the fixed rod, the locking hook is fixedly connected to the top of the fixed rod, the bottom end of the support rod is fixedly connected to the pin shaft, the support rod is sleeved on the outside of the connecting rod and the two can slide axially relative to each other, and the connecting rod is sleeved on the outside of the fixed rod and the two can slide axially relative to each other.

[0009] Furthermore, the connecting rod, the supporting rod and the fixing rod are provided with fixing holes, in which fixing parts are detachably connected, and when the fixing holes on any two of the connecting rod, the supporting rod and the fixing rod overlap, the fixing parts can pass through the two overlapping fixing holes.

[0010] Furthermore, a cover plate is fixedly connected to the side wall of the support rod, and the cover plate is parallel to the axis of the support rod and fits with the side wall of the support rod. When the support rod is located in the storage groove, the cover plate covers the top of the storage groove to close the storage groove.

[0011] Furthermore, the base can be installed on the deck by embedding, and the top of the base is flush with the deck.

[0012] Furthermore, the fixing member is a screw, and the fixing hole is a threaded hole.

[0013] Furthermore, there are a plurality of fixing members, and a plurality of fixing holes are provided and are evenly distributed along the axial direction of the telescopic rod.

[0014] The utility model discloses a hook fixing device for a crane, wherein a storage groove can provide a storage space for a telescopic rod, and in a non-working state, the telescopic rod can be rotated to be parallel to a base, at which time the telescopic rod, a pin shaft and a locking hook are all located in the storage groove. Since the storage groove is provided on the base, when the telescopic rod is stored in the storage groove, only the base is exposed to the air. Since the telescopic rod, the pin shaft and the locking hook are located in the storage groove, the contact area with wind, rain and water etc. can be reduced, the erosion rate can be reduced and the service life can be prolonged. On the other hand, in a non-working state, when the telescopic rod, the pin shaft and the locking hook are in the storage groove, they are equivalent to being hidden in the base, which greatly reduces the volume of the fixing device on the deck. When the crew passes by the device, since only the base is exposed on the deck and the shape and volume of the base are relatively short, the crew will not be tripped even when passing by the fixing device, which greatly improves the practicability of the fixing device. Compared with the traditional technology, the technical scheme avoids the erosion of air and rain water, improves the service life and also improves the practicability of the fixing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the utility model in working state;

[0016] Figure 2 This is the main view of the utility model in a non-working state;

[0017] Figure 3 It is a top view of the utility model in working state;

[0018] Figure 4 This is a top view of the utility model in a non-working state;

[0019] Figure 5 For this utility model Figure 1 A partial enlarged view of the middle part;

[0020] Figure 6 For this utility model Figure 1 A partial enlarged view of point B in the middle.

[0021] Figure numerals: 1. base; 2. storage slot; 3. telescopic rod; 4. locking hook; 5. pin shaft; 6. connecting rod; 7. supporting rod; 8. fixing rod; 9. fixing hole; 10. fixing piece; 11. cover plate. DETAILED DESCRIPTION

[0022] In order to make the technical means, technical features, utility model objectives and technical effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific illustrations.

[0023] Embodiment 1:

[0024] like Figure 1-Figure 6 As shown, this embodiment provides a hook fixing device for a crane, including a base 1, a receiving groove 2 is opened in the middle of the base 1, a telescopic rod 3 is arranged in the receiving groove 2, a locking hook 4 is welded to the top of the telescopic rod 3, a pin 5 is welded to the bottom of the telescopic rod 3, the pin 5 is rotatably connected to one end of the receiving groove 2 through a bearing, the telescopic rod 3 can be rotated to be perpendicular or parallel to the base 1 through the pin 5, and when the telescopic rod 3 is parallel to the base 1, the telescopic rod 3 and the locking hook 4 are both located in the receiving groove 2.

[0025] Preferably, the telescopic rod 3 includes a connecting rod 6, a support rod 7 and a fixed rod 8, the connecting rod 6 is located between the support rod 7 and the fixed rod 8, the locking hook 4 is welded to the top of the fixed rod 8, the bottom end of the support rod 7 is welded to the pin 5, the support rod 7 is sleeved on the outside of the connecting rod 6 and the two can slide axially relative to each other, and the connecting rod 6 is sleeved on the outside of the fixed rod 8 and the two can slide axially relative to each other.

[0026] Preferably, fixing holes 9 are provided on the connecting rod 6, the supporting rod 7 and the fixing rod 8, and fixing parts 10 are detachably connected in the fixing holes 9. When the fixing holes 9 on any two of the connecting rod 6, the supporting rod 7 and the fixing rod 8 overlap, the fixing parts 10 can pass through the two overlapping fixing holes 9.

[0027] Preferably, a cover plate 11 is welded to the side wall of the support rod 7, and the cover plate 11 is parallel to the axis of the support rod 7 and fits with the side wall of the support rod 7. When the support rod 7 is located in the storage groove 2, the cover plate 11 covers the top of the storage groove 2 to close the storage groove 2.

[0028] Preferably, the base 1 can be installed on the deck by embedding, and the top of the base 1 is flush with the deck.

[0029] Preferably, the fixing member 10 is a screw, and the fixing hole 9 is a threaded hole.

[0030] Preferably, a plurality of fixing members 10 are provided, and a plurality of fixing holes 9 are provided and are evenly distributed along the axial direction of the telescopic rod 3 .

[0031] Preferably, the connecting rod 6 may be composed of a long tube, or may be composed of a plurality of circular tubes of the same length nested with each other, so as to facilitate the adjustment of the overall length.

[0032] When working, rotate the telescopic rod 3 to be perpendicular to the base 1, then move and pull the connecting rod 6 out of the supporting rod 7, pull the supporting rod 7 out of the fixing rod 8, then hook the hook 4 on the top of the connecting rod 6 on the crane hook, and then use the fixing piece 10 to pass through the fixing holes 9 that coincide with each other on the connecting rod 6 and the supporting rod 7, and fix the fixing piece 10 to the fixing hole 9 through a threaded connection. Similarly, use the fixing piece 10 to pass through the fixing holes 9 that coincide with each other on the supporting rod 7 and the fixing rod 8. At this time, the fixing of the connecting rod 6, the supporting rod 7 and the fixing rod 8 can be completed. At this point, the fixing process of the hook has been completed. When it is needed When retracting, remove the fixing piece 10 from the fixing hole 9, then separate the locking hook 4 from the hook, and then shrink the connecting rod 6, the supporting rod 7 and the fixing rod 8 so that the connecting rod 6 and the supporting rod 7 are both located in the fixing rod 8, and then rotate to the storage groove 2. The outer cover plate 11 can block the opening at the top of the storage groove 2, thereby protecting the internal telescopic rod 3 from erosion. Moreover, since the base 1 is embedded in the deck, in the non-working state, after the cover plate 11 blocks the storage groove 2, the top of the base 1 is flush with the deck, which does not affect the crew's walking at all, greatly improving the practicality.

[0033] The storage groove 2 can provide a storage space for the telescopic rod 3. In the non-working state, the telescopic rod 3 can be rotated to be parallel to the base 1. At this time, the telescopic rod 3, the pin 5 and the lock hook 4 are all located in the storage groove 2. Since the storage groove 2 is opened on the base 1, when the telescopic rod 3 is stored in the storage groove 2, only the base 1 is exposed to the air. Since the telescopic rod 3, the pin 5 and the lock hook 4 are located in the storage groove 2, the contact area with sea wind, rain and water can be reduced, the erosion rate can be reduced, and the service life can be extended. On the other hand, in the non-working state, when the telescopic rod 3, the pin 5 and the lock hook 4 are in the storage groove 2, they are equivalent to being hidden in the base 1, which greatly reduces the volume of the fixing device on the deck. When the crew passes by the device, since only the base 1 is exposed on the deck, and the shape and volume of the base 1 are relatively short, the crew will not be tripped even when passing by the fixing device, which greatly improves the practicality of the fixing device. Compared with the traditional technology, the technical solution avoids the erosion of air and rainwater, improves the service life and also improves the practicality of the fixing device.

[0034] The above description is only a preferred embodiment of the utility model, and is not intended to limit the scope of implementation of the utility model. That is, all equivalent changes and modifications made according to the content of the patent application scope of the utility model should belong to the technical scope of the utility model.

Claims

1. A hook fixing device for a crane, comprising a base (1), characterized in that: A storage groove (2) is provided in the middle of the base (1), a telescopic rod (3) is provided in the storage groove (2), a locking hook (4) is fixedly connected to the top of the telescopic rod (3), a pin (5) is fixedly connected to the bottom of the telescopic rod (3), the pin (5) is rotatably connected to one end of the storage groove (2), the telescopic rod (3) can be rotated to be perpendicular or parallel to the base (1) through the pin (5), and when the telescopic rod (3) is parallel to the base (1), the telescopic rod (3) and the locking hook (4) are both located in the storage groove (2).

2. A crane hook fixing device according to claim 1, characterized in that: The telescopic rod (3) comprises a connecting rod (6), a supporting rod (7) and a fixing rod (8); the connecting rod (6) is located between the supporting rod (7) and the fixing rod (8); the locking hook (4) is fixedly connected to the top of the fixing rod (8); the bottom end of the supporting rod (7) is fixedly connected to the pin (5); the supporting rod (7) is sleeved on the outside of the connecting rod (6) and the two can slide axially relative to each other; the connecting rod (6) is sleeved on the outside of the fixing rod (8) and the two can slide axially relative to each other.

3. A crane hook fixing device according to claim 2, characterized in that: The connecting rod (6), the supporting rod (7) and the fixing rod (8) are provided with fixing holes (9), and a fixing piece (10) is detachably connected in the fixing hole (9). When the fixing holes (9) on any two of the connecting rod (6), the supporting rod (7) and the fixing rod (8) overlap, the fixing piece (10) can pass through the two overlapping fixing holes (9).

4. A crane hook fixing device according to claim 3, characterized in that: A cover plate (11) is fixedly connected to the side wall of the support rod (7); the cover plate (11) is parallel to the axis of the support rod (7) and fits the side wall of the support rod (7); when the support rod (7) is located in the storage groove (2), the cover plate (11) covers the top of the storage groove (2) to close the storage groove (2).

5. A crane hook fixing device according to claim 1, characterized in that: The base (1) can be installed on a deck by embedding, and the top of the base (1) is flush with the deck.

6. A crane hook fixing device according to claim 3, characterized in that: The fixing member (10) is a screw, and the fixing hole (9) is a threaded hole.

7. A crane hook fixing device according to claim 6, characterized in that: A plurality of fixing members (10) are provided, and a plurality of fixing holes (9) are provided and are evenly distributed along the axial direction of the telescopic rod (3).

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