Lifting hook

Abstract

The utility model discloses a lifting hook. The lifting hook comprises a lifting hook body, a shell sleeve; the shell sleeve is matched with the outer shape of the lifting hook and sleeves the lifting hook, and a notch is formed in a hook opening, corresponding to the lifting hook, of the shell sleeve; the identification part comprises a plurality of liquid grooves formed in the inner wall of the shell sleeve, liquid bags containing coloring agents are arranged in the liquid grooves, flow guide grooves are formed in the sides, away from the groove openings, of the liquid grooves, the liquid grooves communicate with the corresponding flow guide grooves, and indication blocks are arranged at the ends, away from the corresponding liquid grooves, of the flow guide grooves; according to the utility model, along with the work of the lifting hook, the lifting hook and the shell sleeve are abraded together until the liquid bag is broken along with the abrasion of the shell sleeve, the coloring agent in the liquid bag flows into the corresponding indicating block along with the flow guide groove to change the color of the indicating block, and when a worker observes the color change of the indicating block, the abrasion degree of the lifting hook reaches a preset value; therefore, a worker can quickly control the abrasion condition of the lifting hook and replace the lifting hook in time.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical slings, in particular to a hook. Background Art

[0002] Lifting equipment is a machine commonly used to lift and move heavy objects, and the hook is one of the key components of lifting equipment.

[0003] According to relevant regulations, hooks need to be replaced when the wear reaches 10%, but the current inspection methods for hooks usually use visual inspection and dimension measurement methods. These inspection methods make it difficult for staff to control the wear of the hooks in real time. Therefore, this application specifically proposes a hook that can quickly display a mark when the wear reaches a predetermined value. Utility Model Content

[0004] The main purpose of the utility model is to provide a hook which can quickly display a mark when the wear reaches a predetermined value.

[0005] To achieve the above object, the utility model provides a hook, comprising:

[0006] Hook;

[0007] Shell; the shell matches the outer shape of the hook and is sleeved outside the hook, and the shell is provided with a U-shaped notch at the hook mouth corresponding to the hook;

[0008] The identification component includes a plurality of liquid grooves opened on the inner wall of the shell, and each of the liquid grooves is distributed on the shell around the hook mouth, each of the liquid grooves is provided with a liquid capsule filled with a dye, and each of the liquid grooves is provided with a guide groove on the side away from the groove mouth, and the liquid groove is connected with the corresponding guide groove, and an indicator block is provided at one end of the guide groove away from the corresponding liquid groove. When the hook is worn to a predetermined value, the liquid groove and the liquid capsule located therein are worn out synchronously, and the dye in the liquid capsule dyes the corresponding indicator block through the guide groove.

[0009] Furthermore, a first mounting hole is provided on the hook tip of the hook, and a second mounting hole is provided on an end of the hook body away from the hook mouth;

[0010] The shell sleeve includes a first shell and a second shell, the first shell and the second shell are arranged on both sides of the hook, and the first shell and the second shell are arranged opposite to each other and can be interlocked, and the first shell and the second shell are respectively provided with two groups of positioning holes at the positions corresponding to the first mounting hole and the second mounting hole, and the first shell and the second shell are fixed to the hook body by bolts passing through the corresponding first mounting hole, the second mounting hole and the positioning hole.

[0011] Furthermore, glue is provided inside the first shell and the second shell for gluing the first shell and the second shell to the hook.

[0012] Furthermore, a friction component is provided on the shell, and the friction component includes a friction plate arranged on a side of the first shell and the second shell away from the hook, and the two friction plates are arc-shaped and distributed on both sides of the hook mouth.

[0013] Furthermore, a slot is provided on a side of the first shell and the second shell away from the hook;

[0014] Each friction plate is provided with an insert block on one side close to the hook, which is plugged into the corresponding slot. Through the plug-in cooperation between the slot and the insert block, the friction plate can be detachably installed on the corresponding first shell and the second shell.

[0015] Furthermore, a plurality of marking grooves are evenly distributed on each of the friction plates, each of the marking grooves has different depths, and each of the marking grooves is filled with a solid color block, and each color block has a different color.

[0016] Furthermore, an anti-drop rod is rotatably provided at one end of the hook away from the hook mouth, a torsion spring is provided at the rotation joint between the anti-drop rod and the hook, the torsion spring provides a torsion force in the direction of the hook tip for the anti-drop rod, one end of the anti-drop rod away from the torsion spring abuts against an end of the hook body close to the hook tip, the anti-drop rod is used to prevent the load from accidentally dropping out of the hook, and the hook further comprises a straight handle arranged at the top end of the hook body for connecting other components;

[0017] The hook is provided with a limiting component, which includes a connecting frame rotatably arranged on the anti-drop rod, the connecting frame is in the shape of a "mouth" and is arranged around the top of the hook body, and a limiting frame is provided on the side of the straight handle away from the anti-drop rod. The limiting frame is L-shaped, and a limiting groove is provided on the side of the long side of the limiting frame away from the anti-drop rod, and the limiting groove is used to constrain the movement of the connecting frame.

[0018] The beneficial effects of the utility model are embodied in:

[0019] According to the utility model, as the hook works, the hook and the shell wear together until the liquid capsule ruptures due to the wear of the shell, and the dye in the liquid capsule flows into the corresponding indicator block along the guide groove to change the color of the indicator block. When the staff observes the color change of the indicator block, it indicates that the wear degree of the hook has reached a predetermined value, so that the staff can quickly control the wear condition of the hook and replace the hook in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a three-dimensional view of the front side of the hook of the utility model;

[0021] Figure 2 It is a structural view of the shell;

[0022] Figure 3 yes Figure 2 Magnified view at A in the middle;

[0023] Figure 4 It is a structural view of the hook.

[0024] Description of reference numerals:

[0025] 1. Hook; 11. Hook body; 12. Hook tip; 13. Straight handle; 14. Hook mouth; 15. First mounting hole; 16. Second mounting hole; 17. Anti-slip rod; 2. Shell; 21. Notch; 22. First shell; 23. Second shell; 24. Positioning hole; 25. Slot; 3. Identification component; 31. Liquid tank; 32. Liquid capsule; 33. Guide groove; 34. Indicator block; 4. Friction component; 41. Friction plate; 411. Identification groove; 42. Insert block; 5. Limit component; 51. Connecting frame; 52. Limit frame; 521. Limit groove. Specific implementation plan

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other.

[0027] See also Figure 1-Figure 4 .

[0028] The utility model discloses a hook, comprising:

[0029] Hook 1;

[0030] The shell 2 is consistent with the outer shape of the hook 1 and is sleeved outside the hook 1, and the shell 2 is provided with a U-shaped notch 21 at a position corresponding to the hook opening 14 of the hook 1;

[0031] The identification component 3 includes a plurality of liquid grooves 31 opened on the inner wall of the shell 2, and each liquid groove 31 is distributed on the shell 2 around the hook mouth 14, and each liquid groove 31 is provided with a liquid capsule 32 filled with a dye, and each liquid groove 31 is provided with a guide groove 33 on the side away from the groove 21, and the liquid groove 31 is connected with the corresponding guide groove 33, and an indicator block 34 is provided at one end of the guide groove 33 away from the corresponding liquid groove 31. When the hook 1 is worn to a predetermined value, the liquid groove 31 and the liquid capsule 32 located therein are worn out synchronously, and the dye in the liquid capsule 32 dyes the corresponding indicator block 34 through the guide groove 33.

[0032] In a specific implementation, after the shell 2 is put on the hook 1, the hook mouth 14 of the hook 1 and the hook mouth 14 of the shell 2 corresponding to the hook 1 are worn at the same time when the hook 1 is in use. As the hook 1 continues to be used, the wear gap between the hook 1 and the shell 2 expands toward the liquid tank 31 until the liquid capsule 32 is destroyed by the friction between the hook 1 and the load. At this time, the dye in the liquid capsule 32 flows into the liquid tank 31 as the liquid capsule 32 ruptures, and the dye flows to the corresponding indicator block 34 through the guide groove 33 to dye it. When the staff observes that the indicator block 34 changes color, the wear degree of the hook 1 has reached a predetermined value and needs to be replaced.

[0033] According to the utility model, as the hook 1 works, the hook 1 and the shell 2 wear together until the liquid capsule 32 ruptures due to the wear of the shell 2, and the dye in the liquid capsule 32 flows into the corresponding indicator block 34 along the guide groove 33 to change the color of the indicator block 34. When the staff observes that the indicator block 34 changes color, it indicates that the wear degree of the hook 1 has reached a predetermined value, so that the staff can quickly control the wear condition of the hook 1 and replace the hook 1 in time.

[0034] In one embodiment, a first mounting hole 15 is formed on the hook tip 12 of the hook 1, and a second mounting hole 16 is formed on the end of the hook body 11 of the hook 1 away from the hook mouth 14;

[0035] The shell 2 includes a first shell 22 and a second shell 23, which are arranged on both sides of the hook 1 and are arranged opposite to each other and can be interlocked. The first shell 22 and the second shell 23 are respectively provided with two groups of positioning holes 24 at the positions corresponding to the first mounting holes 15 and the second mounting holes 16. The first shell 22 and the second shell 23 are fixed to the hook body 11 by bolts passing through the corresponding first mounting holes 15, the second mounting holes 16 and the positioning holes 24.

[0036] In one embodiment, glue is provided inside the first shell 22 and the second shell 23 for gluing the first shell 22 and the second shell 23 to the hook 1. Preferably, AB glue can be used as the glue.

[0037] In this design, the first shell 22 and the second shell 23 are buckled together, the inner wall of each shell is in contact with the surface of the hook 1 and each shell is bonded to the hook 1 by gluing. At this time, each group of positioning holes 24 on the first shell 22 and the second shell 23 are coaxially arranged with the corresponding mounting holes, and bolts are passed through the corresponding positioning holes 24 and screwed into the corresponding mounting holes, so that the first shell 22 and the second shell 23 can be stably connected to the hook 1 after being buckled, so as to prevent the shell 2 from detaching from the hook 1 due to friction and shaking between the hook 1 and the load when the hook 1 is working.

[0038] In one embodiment, the housing 2 is provided with a friction component 4 , which includes friction plates 41 disposed on the first shell 22 and the second shell 23 away from the hook 1 . The two friction plates 41 are arc-shaped and distributed on both sides of the hook opening 14 .

[0039] In this design, since the contact surface between the hook 1 and the sling is concentrated on the hook mouth 14 and the two sides of the hook mouth 14, friction plates 41 are arranged on both sides of the shell 2 corresponding to the hook mouth 14 to prevent the sling from wearing the side of the shell 2 and accidentally damaging the liquid capsule 32.

[0040] In one embodiment, a slot 25 is formed on a surface of the first shell 22 and the second shell 23 away from the hook 1;

[0041] Each friction plate 41 is provided with an insert block 42 on one side close to the hook 1 and is plugged into the corresponding slot 25 . The friction plate 41 can be detachably mounted on the corresponding first shell 22 and second shell 23 through the plugging and matching between the slot 25 and the insert block 42 .

[0042] With this design, the friction plate 41 can be detachably mounted on the corresponding first housing 22 and second housing 23 through the plug-in cooperation between the slot 25 and the plug block 42 , so that the friction plate 41 can be easily replaced after being worn.

[0043] In one embodiment, a plurality of marking grooves 411 are evenly distributed on each friction plate 41, and the depth of each marking groove 411 is different (i.e., the distance from the bottom of the marking groove 411 to the outer surface of the friction plate 41), and each marking groove 411 is filled with a solid color block, and each color block has a different color. With this design, when the friction plate 41 is rubbed, the staff can understand the wear degree and wear position of the hook 1 by the wear degree of the color block.

[0044] In one embodiment, an anti-drop rod 17 is rotatably provided at one end of the hook 1 away from the hook mouth 14, and a torsion spring (not shown in the figure) is provided at the rotation joint between the anti-drop rod 17 and the hook 1, and the torsion spring provides a torsion force in the direction of the hook tip 12 for the anti-drop rod 17, and one end of the anti-drop rod 17 away from the torsion spring abuts against one end of the hook body 11 close to the hook tip 12, and the anti-drop rod 17 is used to prevent the load from accidentally dropping out of the hook 1, and the hook 1 also includes a straight handle 13 arranged at the top end of the hook body 11, which is used to connect other components;

[0045] The hook 1 is provided with a limiting component 5, which includes a connecting frame 51 rotatably set on the anti-slip rod 17, the connecting frame 51 is in the shape of a "mouth" and is arranged around the top of the hook body 11, and the straight handle 13 is provided with a limiting frame 52 on the side away from the anti-slip rod 17. The limiting frame 52 is L-shaped, and a limiting groove 521 is provided on the long side of the limiting frame 52 away from the anti-slip rod 17. The limiting groove 521 is used to constrain the movement of the connecting frame 51.

[0046] With this design, when it is necessary to remove the load, the anti-drop rod 17 is rotated toward the limit frame 52, the connecting frame 51 rotates with the anti-drop rod 17 and the torsion spring is compressed at this time, and when the anti-drop rod 17 is rotated to a suitable position, the end of the connecting frame 51 away from the anti-drop rod 17 is clamped in the limit groove 521, and the limit frame 52 constrains the rotation of the anti-drop rod 17 through the connecting frame 51, so that there is no need to continuously apply additional force to the anti-drop rod 17 when taking out the load, and it is easier to take out the load.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. In addition, "multiple", "multiple groups", and "several" refer to more than two.

Claims

1. A hook, characterized in that: include: Hook (1); A shell (2); the shell (2) matches the outer shape of the hook (1) and is sleeved outside the hook (1), and the shell (2) is provided with a U-shaped notch (21) at a position corresponding to the hook opening (14) of the hook (1); The identification component (3) comprises a plurality of liquid grooves (31) provided on the inner wall of the shell (2), and each of the liquid grooves (31) is distributed on the shell (2) around the hook opening (14), and each of the liquid grooves (31) is provided with a liquid capsule (32) containing a dye, and each of the liquid grooves (31) is provided with a guide groove (33) on a side away from the slot opening (21), and the liquid groove (31) is communicated with the corresponding guide groove (33), and an indicator block (34) is provided at one end of the guide groove (33) away from the corresponding liquid groove (31); when the hook (1) is worn to a predetermined value, the liquid groove (31) and the liquid capsule (32) therein are worn out synchronously, and the dye in the liquid capsule (32) dyes the corresponding indicator block (34) through the guide groove (33).

2. The hook according to claim 1, characterized in that: A first mounting hole (15) is formed on the hook tip (12) of the hook (1), and a second mounting hole (16) is formed on the end of the hook body (11) of the hook (1) away from the hook mouth (14); The shell (2) comprises a first shell (22) and a second shell (23), wherein the first shell (22) and the second shell (23) are arranged on both sides of the hook (1), and the first shell (22) and the second shell (23) are arranged opposite to each other and can be interlocked, and the first shell (22) and the second shell (23) are respectively provided with two groups of positioning holes (24) at positions corresponding to the first mounting hole (15) and the second mounting hole (16), and the first shell (22) and the second shell (23) are fixed on the hook body (11) by bolts passing through the corresponding first mounting hole (15), the second mounting hole (16) and the positioning holes (24).

3. The hook according to claim 2, characterized in that: Glue is provided inside the first shell (22) and the second shell (23) for gluing the first shell (22) and the second shell (23) onto the hook (1).

4. The hook according to claim 2, characterized in that: The shell (2) is provided with a friction component (4), and the friction component (4) includes a friction plate (41) arranged on a side of the first shell (22) and the second shell (23) away from the hook (1), and the two friction plates (41) are arc-shaped and distributed on both sides of the hook mouth (14).

5. The hook according to claim 4, characterized in that: A slot (25) is provided on a side of the first shell (22) and the second shell (23) away from the hook (1); Each friction plate (41) is also provided with an insert block (42) on one side close to the hook (1) and plugged into the corresponding slot (25). Through the plug-in cooperation between the slot (25) and the insert block (42), the friction plate (41) can be detachably installed on the corresponding first shell (22) and the second shell (23).

6. The hook according to claim 4, characterized in that: A plurality of marking grooves (411) are evenly distributed on each friction plate (41), each marking groove (411) has different depths, and each marking groove (411) is filled with a solid color block, each color block having a different color.

7. The hook according to claim 2, characterized in that: An anti-slip rod (17) is rotatably provided at one end of the hook (1) away from the hook mouth (14); a torsion spring is provided at the rotation joint between the anti-slip rod (17) and the hook (1); the torsion spring provides a torsion force in the direction of the hook tip (12) for the anti-slip rod (17); an end of the anti-slip rod (17) away from the torsion spring abuts against an end of the hook body (11) close to the hook tip (12); the anti-slip rod (17) is used to prevent the load from accidentally escaping from the hook (1); the hook (1) also includes a straight handle (13) arranged at the top end of the hook body (11) for connecting other components; The hook (1) is provided with a limiting component (5), the limiting component (5) comprising a connecting frame (51) rotatably arranged on the anti-slip rod (17), the connecting frame (51) being in the shape of a "mouth" and being arranged around the top end of the hook body (11), a limiting frame (52) being provided on a side of the straight handle (13) away from the anti-slip rod (17), the limiting frame (52) being in an L shape, and a limiting groove (521) being provided on a side of the long side of the limiting frame (52) away from the anti-slip rod (17), the limiting groove (521) being used to constrain the movement of the connecting frame (51).

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