90-degree anti-rotation device for hook head of lifting hook

Abstract

The utility model discloses a 90-degree anti-rotation device for a hook head of a lifting hook, which belongs to the technical field of anti-rotation lifting hooks and comprises a lifting hook nut and a lifting hook cross beam, the lifting hook nut is connected to the top of the lifting hook cross beam, and an anti-rotation component is arranged between the lifting hook nut and the lifting hook cross beam and comprises a mounting seat. Fixing seats are symmetrically mounted at the ends, deviating from the lifting hook cross beam, of the mounting seats, a pin shaft is arranged between the two fixing seats in a penetrating manner, a positioning plate sleeves the outer side of the pin shaft, a locking pad is mounted at the top of the lifting hook nut, a positioning block is arranged on one side, close to the positioning plate, of the locking pad, and a key groove matched with the positioning block in an inserted manner is connected to the end, away from the pin shaft, of the positioning plate. The locking pad, the lifting hook nut, the positioning plate, the mounting seat, the lifting hook cross beam, the fixing seat, the positioning block and the key groove are arranged in a matched manner, and the positioning plate rotates to enable the positioning block to be matched with the key groove in an inserted manner, so that the lifting hook nut can be locked, an anti-rotation function is realized, a lifting hook head does not need to be processed, and the processing time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-rotation hooks, in particular to a 90-degree anti-rotation device for a hook head. Background Art

[0002] The hook is composed of a hook body, hook nut, hook beam, hook wall panel, plane thrust bearing, movable pulley set, etc. The hook body can rotate 360° in the horizontal plane. Due to specific on-site operating requirements, the hook needs to be fixed for certain process operations. For example, the hook set currently used for lifting suction cups and bag turning needs requires the hook head to be anti-rotation to ensure the reliable locking of the hook head to adapt to different working conditions.

[0003] Existing anti-rotation devices usually require processing of the hook head body, which leads to difficult processing and long delivery cycle. Utility Model Content

[0004] In order to improve the problem that the above-mentioned device usually requires processing of the hook head body, which leads to processing difficulties and long delivery cycle, the utility model provides a 90° anti-rotation device for the hook head.

[0005] The utility model provides a 90° anti-rotation device for the hook head, which adopts the following technical solutions:

[0006] A 90° anti-rotation device for a hook head comprises a hook nut and a hook beam, wherein the hook nut is connected to the top of the hook beam, an anti-rotation component is arranged between the hook nut and the hook beam, and the anti-rotation component comprises a mounting seat, wherein the mounting seat is installed on the right side of the hook beam, a fixing seat is symmetrically installed on the end of the mounting seat away from the hook beam, a pin shaft is passed through two groups of the fixing seats, a positioning plate is sleeved on the outer side of the pin shaft, and the positioning plate is located between the two groups of fixing seats, a locking washer is installed on the top of the hook nut, a positioning block is provided on the side of the locking washer close to the positioning plate, and a key slot which is plugged into and cooperates with the positioning block is connected to the end of the positioning plate away from the pin shaft.

[0007] By adopting the above technical solution, the positioning plate is rotated, and the positioning plate drives the positioning block to rotate until the positioning block is inserted into the key slot, so that the locking washer and the positioning plate are connected, and then the hook nut can be locked to play an anti-rotation function. There is no need to process the hook head, which reduces the processing time.

[0008] Optionally, bolts are provided at the four corners of the mounting seat, and one ends of the four groups of bolts pass through the mounting seat and extend into the interior of the hook beam.

[0009] By adopting the above technical solution, it is convenient to fix the mounting base on one side of the hook beam by bolts.

[0010] Optionally, a buckle is hinged on the surface of one of the fixing seats, and a socket is installed on the surface of the other fixing seat, and the buckle is snap-fitted with the socket.

[0011] By adopting the above technical solution, the holder is rotated and clamped inside the buckle, so that the rotation range of the positioning plate is restricted.

[0012] Optionally, one end of the pin extending out of the fixing seat is sleeved with a washer, and the inner side of the washer is fitted and connected to the outer side of one of the fixing seats.

[0013] By adopting the above technical solution, the pin is limited to avoid the pin from loosening as much as possible.

[0014] Optionally, a latch pin passes through the left side of the pin shaft, both ends of the latch pin extend out of washers, and through holes matching the latch pin are formed inside the washers and the pin shaft.

[0015] By adopting the above technical solution, by passing the latch through one end of the pin shaft, the washer can be conveniently locked by the latch, thereby preventing the washer from falling off the pin shaft as much as possible.

[0016] Optionally, a pull ring is connected to the bottom of the latch.

[0017] By adopting the above technical solution, it is convenient for the user to take out the latch by holding the pull ring.

[0018] In summary, the present invention has at least one of the following beneficial effects:

[0019] By coordinating the locking washer, hook nut, positioning plate, mounting seat, hook beam, fixing seat, positioning block and keyway, the positioning plate is rotated to enable the positioning block to be plugged into and fit with the keyway, thereby locking the hook nut to prevent rotation. There is no need to process the hook head, thus reducing processing time.

[0020] Through the coordinated setting of the washer and the pin, the washer abuts against one side of the fixed seat to limit the pin shaft and try to prevent the pin shaft from loosening. At the same time, the pin passes through the pin shaft, so as to further lock the washer and try to prevent the washer from slipping off the pin shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0023] Figure 2 It is a side view structural schematic diagram of the utility model;

[0024] Figure 3 It is a schematic diagram of the semi-locked state structure of the utility model.

[0025] In the figure: 1. locking washer; 2. hook nut; 3. positioning plate; 4. mounting seat; 5. hook beam; 6. washer; 7. latch; 8. fixing seat; 9. pin shaft; 10. buckle; 11. holder; 12. bolt; 13. positioning block; 14. keyway. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-3 The utility model is described in further detail.

[0027] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2 The utility model provides an embodiment: a 90° anti-rotation device for a hook head, comprising a hook nut 2 and a hook beam 5, wherein the hook nut 2 is rotatably connected to the top of the hook beam 5, an anti-rotation assembly is arranged between the hook nut 2 and the hook beam 5, and the anti-rotation assembly comprises a mounting seat 4, which is arranged on the right side of the hook beam 5, and bolts 12 are arranged at the four corners of the mounting seat 4, and one end of the four groups of bolts 12 penetrates the mounting seat 4 and extends into the interior of the hook beam 5. It is convenient to fix the mounting seat 4 on one side of the hook beam 5 by means of the bolts 12.

[0028] Please refer to the attached figure in the instruction manual Figure 1 , Figure 2 and Figure 3 A fixing seat 8 is symmetrically mounted on one end of the mounting seat 4 away from the hook beam 5, a pin shaft 9 is inserted between the two sets of fixing seats 8, a positioning plate 3 is sleeved on the outer side of the pin shaft 9, and the positioning plate 3 is located between the two sets of fixing seats 8, a buckle 10 is hinged on the surface of one fixing seat 8, and a clamping seat 11 is mounted on the surface of the other fixing seat 8, and the buckle 10 is clamped and matched with the clamping seat 11. The clamping seat 11 is rotated and clamped inside the buckle 10, so that the rotation range of the positioning plate 3 is restricted.

[0029] Please refer to the attached figure in the instruction manual Figure 1, one end of the pin shaft 9 extending out of the fixed seat 8 is sleeved with a washer 6, and the inner side of the washer 6 is fitted and connected with the outer side of one of the fixed seats 8. The pin shaft 9 is limited to avoid the pin shaft 9 from loosening as much as possible. A latch 7 is passed through the left side of the pin shaft 9, and both ends of the latch 7 extend out of the washer 6. Through holes that match the latch 7 are opened inside the washer 6 and the pin shaft 9. By passing the latch 7 through one end of the pin shaft 9, it is convenient to lock the washer 6 through the latch 7, and avoid the washer 6 from falling off the pin shaft 9 as much as possible. A pull ring is fixedly connected to the bottom of the latch 7. It is convenient for the user to hold the pull ring to take out the latch 7.

[0030] Please refer to the attached figure in the instruction manual Figure 2 and Figure 3 A locking washer 1 is installed on the top of the hook nut 2, and a positioning block 13 is provided on the side of the locking washer 1 close to the positioning plate 3. The end of the positioning plate 3 away from the pin shaft 9 is fixedly connected with a key slot 14 that is plugged and matched with the positioning block 13.

[0031] Working principle: When using the device, the mounting base 4 is installed on one side of the hook beam 5 by means of the bolt 12, the locking washer 1 is installed on the top of the hook nut 2, the positioning plate 3 is rotated, and the positioning plate 3 drives the positioning block 13 to rotate until the positioning block 13 is inserted into the key slot 14, so that the locking washer 1 and the positioning plate 3 are connected, and then the hook nut 2 can be locked to play an anti-rotation function, and there is no need to process the hook head, thus reducing the processing time. After that, the pin 7 is passed through the pin shaft 9, so that the washer 6 can be locked on one side of the pin shaft 9, and the loosening of the pin shaft 9 can be avoided as much as possible, further improving the tightness of the connection between the locking washer 1 and the positioning plate 3.

[0032] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A 90° anti-rotation device for a hook head, comprising a hook nut (2) and a hook beam (5), wherein the hook nut (2) is connected to the top of the hook beam (5), and an anti-rotation component is arranged between the hook nut (2) and the hook beam (5), characterized in that: The anti-rotation assembly comprises a mounting seat (4), wherein the mounting seat (4) is mounted on the right side of the hook cross beam (5), and a fixing seat (8) is symmetrically mounted on one end of the mounting seat (4) away from the hook cross beam (5), a pin shaft (9) is passed through two groups of the fixing seats (8), a positioning plate (3) is sleeved on the outer side of the pin shaft (9), and the positioning plate (3) is located between the two groups of fixing seats (8), a locking washer (1) is installed on the top of the hook nut (2), and a positioning block (13) is provided on the side of the locking washer (1) close to the positioning plate (3), and a key slot (14) is connected to the end of the positioning plate (3) away from the pin shaft (9) and is plugged into and matched with the positioning block (13).

2. The 90° anti-rotation device for the hook head according to claim 1, characterized in that: Bolts (12) are provided at the four corners of the mounting seat (4), and one end of the four groups of bolts (12) penetrates the mounting seat (4) and extends into the interior of the hook crossbeam (5).

3. The 90° anti-rotation device for the hook head according to claim 1, characterized in that: A buckle (10) is hingedly connected to the surface of one of the fixing seats (8), and a clamping seat (11) is installed on the surface of the other fixing seat (8), and the buckle (10) is clamped and matched with the clamping seat (11).

4. The 90° anti-rotation device for the hook head according to claim 1, characterized in that: One end of the pin shaft (9) extending out of the fixing seat (8) is sleeved with a washer (6), and the inner side of the washer (6) is fitted and connected to the outer side of one of the fixing seats (8).

5. The 90° anti-rotation device for the hook head according to claim 4, characterized in that: A latch pin (7) passes through the left side of the pin shaft (9), both ends of the latch pin (7) extend out of the washer (6), and through holes matching the latch pin (7) are provided inside the washer (6) and the pin shaft (9).

6. The 90° anti-rotation device for the hook head according to claim 5, characterized in that: The bottom of the latch (7) is connected with a pull ring.

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