Crane hook assembly

The flipping and resetting of the protective baffle is automatically controlled by the lifting mechanism, which solves the problem that the existing crane hook needs to be manually operated, and improves the safety and convenience of the hook lifting.

CN223409212UActive Publication Date: 2025-10-03HENAN YINHE CRANE MASCH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422798542.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-10-03
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

The existing crane hook needs to manually support the protective baffle during the lifting process, which increases the burden on workers and poses a risk of pinching injuries. Frequent operation is also unsafe.

Method used

A crane hook assembly is designed, which adopts a lifting mechanism to realize the automatic flipping and resetting of the protective baffle. Through the cooperation of components such as the lifting push cylinder, the limit slide bar, the rotating assembly and the torsion spring, the flipping and resetting of the protective baffle before and after lifting are automatically controlled.

Benefits of technology

It realizes automatic protection of the hook during the lifting process, avoids unhooking, improves safety and convenience before and after lifting, and reduces the burden of manual operation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223409212U_ABST
    Figure CN223409212U_ABST
Patent Text Reader

Abstract

The utility model discloses a crane hook assembly, which relates to the technical field of crane hooks, and comprises a hook main body, the top end of the hook main body is fixedly connected with a connecting seat, the bottom end of the connecting seat is provided with a protective baffle, the protective baffle penetrates into the connecting seat, and the protective baffle is in sliding connection with the connecting seat. And the lifting hook main body is provided with a lifting mechanism for automatically turning over the protective baffle. Through the lifting mechanism, the protective baffle can be automatically overturned and reset before and after the lifting hook main body is lifted, so that a lifting rope is prevented from being unhooked in the lifting process, the lifting rope is conveniently unhooked through the automatic reset of the protective baffle after lifting, and the safety of the lifting hook is improved. Therefore, the safety of the lifting hook main body before and after lifting is further improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

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

[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally transports heavy objects within a specific range. It is driven by an electric motor or other power source, has diverse structures and flexible operations, and is an indispensable and important equipment in the field of material handling. The hook on the crane is the most commonly used lifting device in lifting operations, and it bears the entire load of the lifting.

[0003] The hooks of existing cranes are usually equipped with protective baffles with torsion springs to prevent objects from coming off the hook during the lifting process. However, before and after the hook is lifted, the protective baffle needs to be manually supported and stabilized by the staff, and the protective baffle needs to be pressed to release the protection. Frequent and repeated operations will not only increase the burden on the staff, but also cause the risk of pinching the staff's hands. In order to further improve the safety of the hook before and after lifting, based on this, a crane hook assembly is now provided to eliminate the disadvantages of the existing device. Utility Model Content

[0004] The purpose of the utility model is to provide a crane hook assembly to solve the problems in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A crane hook assembly includes a hook body, the top of the hook body is fixedly connected to a connecting seat, the bottom end of the connecting seat is provided with a protective baffle, the protective baffle extends into the interior of the connecting seat, the protective baffle is slidably connected to the connecting seat, and the hook body is provided with a lifting mechanism for automatically flipping the protective baffle.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional solution, the lifting mechanism includes:

[0009] A first lifting assembly provided on the hook body;

[0010] The first lifting component is a lifting push cylinder sleeved on the outside of the hook body, the lifting push cylinder is located below the protective baffle, and the lifting push cylinder is connected to the hook body in an up and down sliding manner;

[0011] A limit assembly is provided on the lifting push cylinder, and the limit assembly is used to limit the lifting and lowering of the lifting push cylinder.

[0012] In an optional solution, the limiting component includes:

[0013] A plurality of limit slide bars are fixedly connected to the interior of the lifting push cylinder at equal intervals in the horizontal direction, and the plurality of limit slide bars are connected to the hook body in an up-and-down sliding manner;

[0014] The lifting push cylinder is provided with a connecting component.

[0015] In an optional solution, the connecting component is a connecting slide fixedly connected to one end of the lifting push cylinder, the connecting slide passes through the interior of the connecting seat, and the connecting slide is connected to the connecting seat in an upward and downward sliding manner;

[0016] The protective baffle is provided with a rotating assembly, and the rotating assembly is used to drive the protective baffle to flip.

[0017] In an optional solution, the rotating assembly includes:

[0018] A transmission rotating rod is fixedly connected to the top of the protective baffle, and the outer wall of the transmission rotating rod is symmetrically fixedly connected to two connecting rotating rods, and the two connecting rotating rods are rotatably connected to the connecting seat through a rotating shaft;

[0019] The connecting rotating rod is provided with a reset assembly, and the reset assembly is used to drive the transmission rotating rod to rotate and reset.

[0020] In an optional solution, the reset assembly is a torsion spring sleeved on the outer wall of the connecting rod, and both ends of the torsion spring are integrally formed with positioning plugs. One end of the torsion spring is inserted into the interior of the transmission rod through the positioning plug, and the other end of the torsion spring is inserted into the interior of the connecting seat through the positioning plug. Positioning slots for inserting the positioning plug are provided at the junction of the transmission rod, the connecting seat and the positioning plug.

[0021] A second lifting assembly is provided on the transmission rotating rod.

[0022] In an optional solution, the second lifting assembly includes:

[0023] Two connecting rods are symmetrically fixedly connected to the outer wall of the transmission rotating rod, and a fixing block is provided between the two connecting rods, and the fixing block is fixedly connected to the two connecting rods;

[0024] A guide assembly is provided on the fixing block.

[0025] In an optional solution, the guide assembly includes:

[0026] A connecting pressure plate is slidably sleeved on the outer wall of the fixed block, the connecting pressure plate is fixedly connected to the connecting slide plate, and a linear sliding groove for sliding of the fixed block is provided at the connecting position of the connecting pressure plate and the fixed block.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] The utility model uses a lifting mechanism to realize automatic flipping and resetting of the protective baffle before and after the hook body is hoisted, so as to prevent the lifting rope from being unhooked during the hoisting process. After hoisting, the protective baffle is automatically reset to facilitate the unhooking of the lifting rope, thereby further improving the safety of the hook body before and after hoisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural diagram of the present utility model.

[0030] Figure 2 This is a schematic diagram of the internal structure of the connecting seat of the present invention.

[0031] Figure 3 This is a schematic diagram of the lifting mechanism structure of the utility model.

[0032] Figure 4 For the utility model Figure 2 Schematic diagram of the local enlarged structure at point A in the figure.

[0033] Notes on the accompanying drawings: 1. Hook body; 201. Connecting rotating rod; 202. Connecting slide; 203. Lifting push cylinder; 204. Limiting slide; 205. Connecting pressure plate; 206. Linear slide; 207. Connecting pull rod; 208. Fixed block; 209. Transmission rotating rod; 2010. Torsion spring; 3. Protective baffle; 4. Connecting seat; 5. Support seat. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0035] In one embodiment, Figures 1-4 As shown, a crane hook assembly includes a hook body 1, the top of the hook body 1 is fixedly connected to a connecting seat 4, the bottom end of the connecting seat 4 is provided with a protective baffle 3, the protective baffle 3 extends into the interior of the connecting seat 4, the protective baffle 3 is slidably connected to the connecting seat 4, the top of the connecting seat 4 is fixedly connected to a support seat 5, the support seat 5 is connected to the crane via a hook pin, and the hook body 1 is provided with a lifting mechanism for automatically flipping the protective baffle 3;

[0036] The lifting mechanism includes: a first lifting assembly provided on the hook body 1;

[0037] The first lifting assembly is a lifting push cylinder 203 sleeved on the outside of the hook body 1. The lifting push cylinder 203 is located below the protective baffle 3 and is connected to the hook body 1 in an up-and-down sliding manner.

[0038] A limit assembly is provided on the lifting push cylinder 203, and the limit assembly is used to limit the lifting and lowering of the lifting push cylinder 203;

[0039] The limiting assembly includes: a plurality of limiting slide bars 204 fixedly connected to the interior of the lifting push cylinder 203 at equal intervals in the horizontal direction, and the plurality of limiting slide bars 204 are all connected to the hook body 1 for sliding up and down, and are used to limit the lifting of the lifting push cylinder 203 through the plurality of limiting slide bars 204;

[0040] A connecting assembly is provided on the lifting push cylinder 203;

[0041] In this embodiment, when in use, the rope connected to the object is sleeved on the hook body 1, and then the crane drives the connecting base 4 to rise through the support base 5. At the same time, the hook body 1 drives the rope to move under the drive of the connecting base 4. When the rope is straightened under the influence of the weight of the object, the lifting push cylinder 203 is squeezed by the rope and descends along the outer wall of the hook body 1 through the multiple limit slide bars 204;

[0042] During this process, the lifting mechanism can make the protective baffle 3 rotate on the connecting seat 4 to contact the outer wall of the hook body 1, so that the protective baffle 3 can be automatically flipped to prevent the rope from being unhooked.

[0043] When the crane moves the article to the designated position for placement through the hook body 1 and the lifting rope, the crane drives the connecting seat 4 to descend through the supporting seat 5, and the lifting rope moves under the drive of the hook body 1 until the lifting rope is in a relaxed state. At this time, the above operation is reversed by the lifting mechanism, so that the protective baffle 3 can be automatically reset, which is conducive to the convenient unhooking of the lifting rope, thereby further improving the safety of the hook body 1 before and after lifting;

[0044] In one embodiment, Figures 1-4 As shown, the connecting component is a connecting slide 202 fixedly connected to one end of the lifting push cylinder 203, the connecting slide 202 passes through the interior of the connecting seat 4, and the connecting slide 202 is connected to the connecting seat 4 by sliding up and down;

[0045] The protective baffle 3 is provided with a rotating assembly, which is used to drive the protective baffle 3 to flip;

[0046] In one embodiment, Figure 2-Figure 4As shown, the rotating assembly includes: a transmission rotating rod 209 fixedly connected to the top of the protective baffle 3, and two connecting rotating rods 201 are symmetrically fixedly connected to the outer wall of the transmission rotating rod 209. The two connecting rotating rods 201 are rotatably connected to the connecting seat 4 through a rotating shaft. Through the transmission rotating rod 209 and the connecting rotating rod 201, the protective baffle 3 can be rotated on the connecting seat 4 with the connecting rotating rod 201 as the axis.

[0047] The connecting rod 201 is provided with a reset assembly, which is used to drive the transmission rod 209 to rotate and reset;

[0048] In one embodiment, Figure 2-Figure 4 As shown, the reset component is a torsion spring 2010 sleeved on the outer wall of the connecting rod 201, and both ends of the torsion spring 2010 are integrally formed with positioning plugs. One end of the torsion spring 2010 is inserted into the interior of the transmission rod 209 through the positioning plug, and the other end of the torsion spring 2010 is inserted into the interior of the connecting seat 4 through the positioning plug. Positioning slots for inserting the positioning plug are provided at the junction of the transmission rod 209, the connecting seat 4 and the positioning plug. The torsion spring 2010 is used to drive the transmission rod 209 to automatically rotate and reset the protective baffle 3 after the hook body 1 is hoisted.

[0049] The transmission rod 209 is provided with a second lifting assembly;

[0050] In one embodiment, Figure 2-Figure 4 As shown, the second lifting assembly includes: two connecting rods 207 symmetrically fixedly connected to the outer wall of the transmission rotating rod 209, a fixing block 208 is provided between the two connecting rods 207, and the fixing block 208 is fixedly connected to the two connecting rods 207;

[0051] A guide assembly is provided on the fixed block 208;

[0052] The guide assembly includes: a connecting pressure plate 205 that is slidably sleeved on the outer wall of the fixed block 208, the connecting pressure plate 205 is fixedly connected to the connecting slide 202, and a linear slide groove 206 for the fixed block 208 to slide is provided at the connection position between the connecting pressure plate 205 and the fixed block 208. Through the mutual cooperation of the second lifting assembly and the guide assembly, the connecting slide 202 can drive the transmission rod 209 to rotate when it descends under the drive of the lifting push cylinder 203.

[0053] The above embodiment discloses a crane hook assembly, wherein, during use, a lifting rope connected to an object is sleeved onto the hook body 1. The crane then drives the connecting base 4 upward via the support base 5. Simultaneously, the hook body 1 drives the lifting rope to move under the drive of the connecting base 4. When the lifting rope is stretched by the weight of the object, the lifting push cylinder 203 is squeezed by the lifting rope and lowered along the outer wall of the hook body 1 via multiple limit slides 204.

[0054] During this process, the connecting pressure plate 205 is synchronously lowered by the driving of the lifting push cylinder 203 through the connecting slide 202. At this time, the fixed block 208 is squeezed by the connecting pressure plate 205 and drives the transmission rotating rod 209 to rotate with the connecting rotating rod 201 as the axis through the two connecting pull rods 207. At the same time, the protective baffle 3 moves along the inner wall of the connecting seat 4 driven by the transmission rotating rod 209. At this time, the transmission rotating rod 209 twists the torsion spring 2010 by rotating. At the same time, the fixed block 208 slides along the inner wall of the linear slide 206 by the driving of the transmission rotating rod 209 through the connecting pull rod 207 until the protective baffle 3 contacts the outer wall of the hook body 1. In this way, the protective baffle 3 can be automatically flipped to prevent the lifting rope from being unhooked.

[0055] When the crane moves the article to the designated position for placement through the hook body 1 and the rope, the crane drives the connecting seat 4 to descend through the support seat 5. At the same time, the rope moves under the drive of the hook body 1 until the rope is in a relaxed state. At this time, the torsion spring 2010 drives the transmission rotating rod 209 to rotate and reset through torsional rebound, thereby performing the reverse operation of the above operation, so that the protective baffle 3 can be automatically reset, which is conducive to the convenient unhooking of the rope, thereby further improving the safety of the hook body 1 before and after lifting.

[0056] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A crane hook assembly, comprising a hook body (1), the top end of the hook body (1) being fixedly connected to a connecting seat (4), the bottom end of the connecting seat (4) being provided with a protective baffle (3), the protective baffle (3) penetrating into the interior of the connecting seat (4), the protective baffle (3) being slidably connected to the connecting seat (4), and characterized in that: The hook body (1) is provided with a lifting mechanism for automatically turning over the protective baffle (3); The lifting mechanism comprises: a first lifting component arranged on the hook body (1); The first lifting component is a lifting push cylinder (203) sleeved on the outside of the hook body (1), the lifting push cylinder (203) is located below the protective baffle (3), and the lifting push cylinder (203) is connected to the hook body (1) in an upward and downward sliding manner; A limiting component is provided on the lifting push cylinder (203), and the limiting component is used to limit the lifting and lowering of the lifting push cylinder (203).

2. A crane hook assembly according to claim 1, characterized in that: The limiting assembly comprises: a plurality of limiting slide bars (204) fixedly connected to the interior of the lifting push cylinder (203) at equal intervals in the transverse direction, and the plurality of limiting slide bars (204) are all connected to the hook body (1) in an upward and downward sliding manner; The lifting push cylinder (203) is provided with a connecting assembly.

3. A crane hook assembly according to claim 2, characterized in that: The connecting assembly is a connecting slide (202) fixedly connected to one end of the lifting push cylinder (203), the connecting slide (202) penetrates into the interior of the connecting seat (4), and the connecting slide (202) is connected to the connecting seat (4) in an upward and downward sliding manner; A rotating assembly is provided on the protective baffle (3), and the rotating assembly is used to drive the protective baffle (3) to flip.

4. A crane hook assembly according to claim 3, characterized in that: The rotating assembly comprises: a transmission rotating rod (209) fixedly connected to the top of the protective baffle (3); two connecting rotating rods (201) are symmetrically fixedly connected to the outer wall of the transmission rotating rod (209); and the two connecting rotating rods (201) are both rotatably connected to the connecting seat (4) via a rotating shaft; The connecting rotating rod (201) is provided with a reset assembly, and the reset assembly is used to drive the transmission rotating rod (209) to rotate and reset.

5. A crane hook assembly according to claim 4, characterized in that: The reset assembly is a torsion spring (2010) sleeved on the outer wall of the connecting rod (201), and both ends of the torsion spring (2010) are integrally formed with positioning plugs. One end of the torsion spring (2010) is inserted into the interior of the transmission rod (209) through the positioning plug, and the other end of the torsion spring (2010) is inserted into the interior of the connecting seat (4) through the positioning plug. Positioning slots for inserting the positioning plug are provided at the connection positions of the transmission rod (209), the connecting seat (4) and the positioning plug. A second lifting assembly is provided on the transmission rotating rod (209).

6. A crane hook assembly according to claim 5, characterized in that: The second lifting assembly comprises: two connecting rods (207) symmetrically fixedly connected to the outer wall of the transmission rotating rod (209); a fixing block (208) is provided between the two connecting rods (207); and the fixing block (208) is fixedly connected to the two connecting rods (207); A guide assembly is provided on the fixed block (208).

7. A crane hook assembly according to claim 6, characterized in that: The guide assembly comprises: a connecting pressure plate (205) slidably sleeved on the outer wall of the fixed block (208); the connecting pressure plate (205) is fixedly connected to the connecting slide plate (202); and a linear slide groove (206) for the fixed block (208) to slide is provided at the connecting position of the connecting pressure plate (205) and the fixed block (208).