Assembled steel ball lifting hook connecting device

Abstract

The utility model relates to the technical field of steel ball lifting hooks, in particular to an assembly type steel ball lifting hook connecting device which comprises a lifting hook body and a blocking frame, the blocking frame is installed on the surface of the lifting hook body, a connecting ring is fixedly connected to the upper end of the lifting hook body, and a connecting assembly is arranged on the inner wall of the connecting ring. A chain is installed at the end, away from the connecting ring, of the connecting assembly, the connecting assembly comprises a fixing shaft, the fixing shaft is rotationally connected with the inner wall of the connecting ring, limiting protruding blocks are fixedly connected to the two sides of the fixing shaft, and assembling cavities are formed in the sides, away from the fixing shaft, of the limiting protruding blocks. According to the utility model, the connecting component is arranged, so that the lifting hook and the chain are connected through the assembling structure, the lifting hook can be detached from the chain by a user, the problem that the subsequent maintenance operation difficulty is increased due to the fact that the lifting hook and the chain are directly assembled together is solved, and the user only needs to detach the lifting hook when maintaining.

Description

Technical Field

[0001] This utility model relates to the field of steel ball hook technology, and in particular to an assembled steel ball hook connection device. Background Technology

[0002] Steel ball hooks are indispensable tools in industrial lifting operations. They are mainly used to lift steel balls, workpieces, and other items with appropriate apertures. They are widely used in industries such as machinery manufacturing, metallurgy, and warehousing and logistics. Steel ball hooks come in various specifications to accommodate items of different sizes, efficiently completing lifting tasks, improving material handling efficiency, and providing strong support for industrial production.

[0003] Existing technologies, such as the utility model patent with publication number CN202245690U, disclose a steel ball hook device. This patent uses a support rod and a hanging plate. The hanging plate is fixed to the upper side of the support rod, and several lifting holes are evenly distributed on the hanging plate. Lifting rings are provided above the lifting holes, and the lifting rings are connected to the lifting holes by ropes. Sliding seats are slidably installed on both sides of the support rod, and pins are screwed onto the sliding seats. The lower end of the pins abuts against the support rod. An iron chain is installed on the lower end of the sliding seat, and a hook is fixed to the lower end of the iron chain. The hook is equipped with a safety buckle for rotation. This solves the problem that in existing cranes, the distance between the hooks of the hook device is fixed during the transportation process, which makes the transportation operation quite inconvenient, and the hook is prone to detaching from the hook during transportation, posing a safety hazard.

[0004] In the use of steel ball hooks, there is a problem that existing steel ball hooks are mostly connected to the crane via chains. During the connection, the chain is usually directly installed on the hook lugs. However, when users need to maintain the steel ball hook, if the chain is directly installed on the hook lugs, the user has to remove the chain from the crane, which is inconvenient for the user to maintain the steel ball hook. Utility Model Content

[0005] The purpose of this utility model is to solve the problem in the prior art that when users perform maintenance on steel ball hooks, the chain is directly installed on the hook lug, which makes it inconvenient for users to remove the chain from the crane during maintenance. Therefore, this utility model proposes an assembled steel ball hook connection device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an assembled steel ball hook connecting device, comprising a hook body and a stop frame, wherein the stop frame is installed on the surface of the hook body, a connecting ring is fixedly connected to the upper end of the hook body, a connecting component is provided on the inner wall of the connecting ring, and a chain is installed at the end of the connecting component away from the connecting ring;

[0007] The connecting assembly includes a fixed shaft, which is rotatably connected to the inner wall of the connecting ring. Limiting protrusions are fixedly connected to both sides of the fixed shaft. An assembly cavity is formed on the side of the limiting protrusion away from the fixed shaft. A connecting plate is slidably connected to the inner wall of the assembly cavity. A locking pin is fixedly connected to the side surface of the connecting plate. A limiting spring is fixedly connected to the side of the connecting plate away from the locking pin. The end of the limiting spring away from the connecting plate is fixedly connected to the inner wall of the assembly cavity.

[0008] A fixing plate is installed on the surface of the limiting protrusion. A load-bearing column is fixedly connected to the side of the fixing plate near the chain. A fixing plate is installed on the surface of the other limiting protrusion. A connecting sleeve is fixedly connected to the side of the fixing plate near the chain. The chain is sleeved with the surface of the connecting sleeve.

[0009] Preferably, fixing pins are fixedly connected to both sides of the fixing shaft, and insertion holes are opened on the surfaces of fixing plate one and fixing plate two. The fixing pins are inserted into the inner walls of the insertion holes. Through the cooperation of the fixing pins and the insertion holes, the position of fixing plate one and fixing plate two can be initially restricted by the limiting protrusion.

[0010] Preferably, the locking pin is slidably connected to the inner wall of the assembly cavity, and the side of the locking pin away from the connecting plate is provided with a chamfer. The locking pin can lock the positions of the fixing plate one and fixing plate two installed on the limiting protrusion under the constraint of the connecting plate and the limiting spring.

[0011] Preferably, there are two limiting springs, which are symmetrically arranged about the vertical center line of the connecting plate. The limiting springs can constrain the position of the connecting plate to ensure the stability of the connecting plate in the locked state.

[0012] Preferably, the first fixing plate is in contact with the inner surface of the locking pin, the first fixing plate is in contact with the surface of the fixing shaft, the second fixing plate is in contact with the inner surface of the locking pin, and the second fixing plate is in contact with the surface of the fixing shaft. Through the cooperation of the first fixing plate, the load-bearing column, the second fixing plate and the connecting sleeve, the connecting ring and the chain can be connected in the locked state, so that the connecting ring can be removed from the chain.

[0013] Preferably, the load-bearing column is inserted into the inner wall of the connecting sleeve. The load-bearing column can increase the structural strength of the connecting sleeve, thereby improving the load-bearing capacity of the connecting sleeve.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] In this invention, by setting a connecting component, the hook and the chain are connected through an assembly structure, which ensures that the hook can be removed from the chain by the user. This reduces the problem of the hook and chain being directly assembled together, which would increase the difficulty of subsequent maintenance operations. When performing maintenance, the user only needs to remove the hook. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural diagram of an assembled steel ball hook connection device;

[0017] Figure 2 A bottom view of the assembled steel ball hook connection device is provided for this utility model;

[0018] Figure 3 This utility model provides a schematic diagram of the connecting component structure of an assembled steel ball hook connecting device;

[0019] Figure 4 This utility model proposes an assembled steel ball hook connection device. Figure 3 Schematic diagram of the structure at point A in the middle;

[0020] Figure 5 This utility model proposes an assembled steel ball hook connection device. Figure 3 Schematic diagram of the structure from the middle side view.

[0021] In the diagram: 1. Hook body; 2. Stop; 3. Connecting ring; 4. Connecting assembly; 41. Fixed shaft; 42. Limiting protrusion; 43. Assembly cavity; 44. Connecting plate; 45. Locking pin; 46. Limiting spring; 47. Fixed plate one; 48. Load-bearing column; 49. Fixed plate two; 410. Connecting sleeve; 411. Fixing pin; 412. Insertion hole; 5. Chain. Detailed Implementation

[0022] Please see Figures 1-5 This utility model provides a technical solution: an assembled steel ball hook connection device, including a hook body 1 and a stop 2. The stop 2 is installed on the surface of the hook body 1. A connecting ring 3 is fixedly connected to the upper end of the hook body 1. A connecting component 4 is provided on the inner wall of the connecting ring 3. A chain 5 is installed at the end of the connecting component 4 away from the connecting ring 3.

[0023] In this embodiment: the connecting component 4 includes a fixed shaft 41, which is rotatably connected to the inner wall of the connecting ring 3. Limiting protrusions 42 are fixedly connected to both sides of the fixed shaft 41. An assembly cavity 43 is opened on the side of the limiting protrusions 42 away from the fixed shaft 41. A connecting plate 44 is slidably connected to the inner wall of the assembly cavity 43. A locking pin 45 is fixedly connected to the side surface of the connecting plate 44. A limiting spring 46 is fixedly connected to the side of the connecting plate 44 away from the locking pin 45. The end of the limiting spring 46 away from the connecting plate 44 is fixedly connected to the inner wall of the assembly cavity 43.

[0024] A fixing plate 47 is installed on the surface of the limiting protrusion 42. A load-bearing column 48 is fixedly connected to the side of the fixing plate 47 near the chain 5. A fixing plate 49 is installed on the surface of the other limiting protrusion 42. A connecting sleeve 410 is fixedly connected to the side of the fixing plate 49 near the chain 5. The chain 5 is sleeved with the surface of the connecting sleeve 410.

[0025] Specifically, fixing pins 411 are fixedly connected to both sides of the fixing shaft 41, and insertion holes 412 are opened on the surface of fixing plate 47 and fixing plate 49. The fixing pins 411 are inserted into the inner wall of the insertion holes 412. Through the cooperation of the fixing pins 411 and the insertion holes 412, the limiting protrusions 42 can initially limit the position of fixing plate 47 and fixing plate 49.

[0026] Specifically, the locking pin 45 is slidably connected to the inner wall of the assembly cavity 43, and the side of the locking pin 45 away from the connecting plate 44 is provided with a chamfer.

[0027] In this embodiment, the positions of the fixing plate 47 and the fixing plate 49 installed on the limiting protrusion 42 can be locked by the locking pin 45 under the constraint of the connecting plate 44 and the limiting spring 46.

[0028] Specifically, there are two limiting springs 46, which are arranged symmetrically about the vertical center line of the connecting plate 44.

[0029] In this embodiment, the position of the connecting plate 44 can be constrained by the limiting spring 46 to ensure the stability of the connecting plate 44 in the locked state.

[0030] Specifically, the inner surface of the first fixing plate 47 is in contact with the inner surface of the locking pin 45, the surface of the first fixing plate 47 is in contact with the surface of the fixing shaft 41, the inner surface of the second fixing plate 49 is in contact with the inner surface of the locking pin 45, and the surface of the second fixing plate 49 is in contact with the surface of the fixing shaft 41. Through the cooperation of the first fixing plate 47, the load-bearing column 48, the second fixing plate 49 and the connecting sleeve 410, the connecting ring 3 and the chain 5 can be connected in the locked state, so that the connecting ring 3 can be removed from the chain 5.

[0031] Specifically, the load-bearing column 48 is inserted into the inner wall of the connecting sleeve 410.

[0032] In this embodiment, the structural strength of the connecting sleeve 410 can be increased by the load-bearing column 48, thereby improving the load-bearing capacity of the connecting sleeve 410.

[0033] Working principle: When using the steel ball hook to lift materials, the cable binding the materials is placed into the hook body 1, and then the materials can be transferred by the crane with the cooperation of the hook, connecting component 4 and chain 5.

[0034] When maintenance is required on the hook body 1, press the two latches 45 on the surface of the fixing plate 47. The latches 45 are pushed along the direction of the assembly cavity 43 to push the connecting plate 44. The connecting plate 44 is compressed by the limiting spring 46. The limiting spring 46 is compressed and deformed. When the latches 45 move to the maximum distance, the latches 45 lose the locking effect on the fixing plate 47. When the fixing plate 47 is unlocked, pull the fixing plate 47 outward. The fixing plate 47 pulls the load column 48. When the fixing plate 47 moves to the surface of the latches 45, the user can release the latches 45. After releasing the latches 45, continue to pull the fixing plate 47. The fixing plate 47 gradually disengages from the limiting protrusion 42 and the fixing pin 411. After removing the fixing plate 47, the user can remove the fixing plate 49 according to the above operation steps. After removing the fixing plate 49, the user can remove the connecting ring 3 from the chain 5.

[0035] By setting the connecting component 4, the hook and chain 5 are connected through an assembly structure, ensuring that the hook can be removed from the chain 5 by the user. This reduces the problem of increased maintenance difficulty caused by directly assembling the hook and chain 5 together, allowing the user to simply remove the hook for maintenance.

Claims

1. An assembled steel ball hook connecting device, comprising a hook body (1) and a stop (2), characterized in that: The baffle (2) is installed on the surface of the hook body (1). A connecting ring (3) is fixedly connected to the upper end of the hook body (1). A connecting component (4) is provided on the inner wall of the connecting ring (3). A chain (5) is installed on the end of the connecting component (4) away from the connecting ring (3). The connecting assembly (4) includes a fixed shaft (41), which is rotatably connected to the inner wall of the connecting ring (3). Limiting protrusions (42) are fixedly connected to both sides of the fixed shaft (41). An assembly cavity (43) is opened on the side of the limiting protrusion (42) away from the fixed shaft (41). A connecting plate (44) is slidably connected to the inner wall of the assembly cavity (43). A locking pin (45) is fixedly connected to the side surface of the connecting plate (44). A limiting spring (46) is fixedly connected to the side of the connecting plate (44) away from the locking pin (45). The end of the limiting spring (46) away from the connecting plate (44) is fixedly connected to the inner wall of the assembly cavity (43). A fixing plate (47) is installed on the surface of the limiting protrusion (42). A load-bearing column (48) is fixedly connected to the side of the fixing plate (47) near the chain (5). A fixing plate (49) is installed on the surface of the other limiting protrusion (42). A connecting sleeve (410) is fixedly connected to the side of the fixing plate (49) near the chain (5). The chain (5) is sleeved with the surface of the connecting sleeve (410).

2. The assembled steel ball hook connecting device according to claim 1, characterized in that: Both sides of the fixed shaft (41) are fixedly connected with fixing pins (411), and the surfaces of the first fixing plate (47) and the second fixing plate (49) are provided with insertion holes (412), and the fixing pins (411) are inserted into the inner wall of the insertion holes (412).

3. The assembled steel ball hook connecting device according to claim 1, characterized in that: The locking pin (45) is slidably connected to the inner wall of the assembly cavity (43), and the side of the locking pin (45) away from the connecting plate (44) is provided with a chamfer.

4. The assembled steel ball hook connecting device according to claim 1, characterized in that: The number of the limiting springs (46) is two, and the two limiting springs (46) are arranged symmetrically about the vertical center line of the connecting plate (44).

5. The assembled steel ball hook connecting device according to claim 1, characterized in that: The first fixing plate (47) is in contact with the inner surface of the locking pin (45), the first fixing plate (47) is in contact with the surface of the fixing shaft (41), the second fixing plate (49) is in contact with the inner surface of the locking pin (45), and the second fixing plate (49) is in contact with the surface of the fixing shaft (41).

6. The assembled steel ball hook connecting device according to claim 1, characterized in that: The load-bearing column (48) is inserted into the inner wall of the connecting sleeve (410).

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