Lifting hook with gravity type safety buckle device

Abstract

The utility model relates to a lifting hook with a gravity type safety buckle device, which comprises a lifting hook body, the lifting hook body is provided with the safety buckle device, the safety buckle device is arranged on the lifting hook body through a pin shaft, the safety buckle device can rotate around the pin shaft, and the safety buckle device comprises a limiting frame and a counter weight frame. The limiting frame can rotate around the pin shaft to the open end of the hook groove under the action of the counterweight frame and seal the open end of the hook groove; one end part of the counter weight frame is fixed on the mounting seat, the other end of the counter weight frame is a counter weight end, the end part is stainless steel round steel, and the counter weight end is of a solid stainless steel structure. According to the utility model, the sensitivity, the strength and the corrosion resistance of the device are improved, a stable closed state is kept, and the safety of a hung article is ensured. The lifting hook is simple in structure, low in failure rate and suitable for being used in a severe working environment for a long time, and the replacement frequency and the maintenance cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting machinery engineering, in particular to a hook provided with a gravity-type safety buckle device. Background Art

[0002] In daily construction, crane hook safety cards generally use two types: spring cards and gravity safety cards. In actual use, spring cards are sensitive but easy to damage; and although gravity safety cards are not easy to damage, most of them are made of round steel directly welded and bent, and the weight of the counterweight end is insufficient, resulting in slow response. Utility Model Content

[0003] The utility model provides a reinforced gravity safety buckle device for a crane hook to solve the above problem.

[0004] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0005] A hook provided with a gravity-type safety buckle device comprises a hook body, and a hook groove is provided on the hook body. The characteristic is that: a safety buckle device is provided on the hook body, the safety buckle device is installed on the hook body through a pin shaft and the safety buckle device can rotate around the pin shaft, and the safety buckle device comprises a limit frame and a counterweight frame, and the limit frame can rotate around the pin shaft to the open end of the hook groove under the action of the counterweight frame and close the open end of the hook groove.

[0006] Among them, the limit frame is in the shape of a U-shaped rod and both ends of the U-shaped rod body are provided with mounting seats. The mounting seats at both ends are provided with mounting holes on the same axis for the two ends of the pin shaft to pass through. One end of the counterweight frame is fixed to the mounting seat and the other end is the counterweight end.

[0007] With the utility model, the safety buckle device can automatically rotate around the pin shaft and close the open end of the hook slot, thus preventing the suspended objects from accidentally falling off, especially when the hook moves or is vibrated. This design not only improves the safety of operation, but also reduces the risk of potential damage or loss caused by falling objects, and is suitable for various lifting and handling operations.

[0008] Preferably, a clearance hole for the hook body to pass through is provided in the middle of the counterweight frame.

[0009] In the utility model, the existence of the clearance hole enables the counterweight frame to be arranged more closely around the hook body, thereby improving the compactness and overall stability of the device.

[0010] Preferably, the pin includes a smooth rod section and a threaded section, two mounting seats are sleeved on the smooth rod section, and the portion of the smooth rod section located between the two mounting seats is the hook body mounting section; the threaded section is threadedly connected with a nut for fixing the safety buckle device to the hook body.

[0011] In the utility model, the bare rod section makes the installation of the mounting seat smoother and provides a special installation section for the hook body. The nut on the threaded section is used to fix the safety buckle device to ensure its stability on the hook body. This design improves the structural stability of the entire hook and also makes the installation and maintenance process simpler and more efficient.

[0012] The above whole device has simple structure and low failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of a reinforced gravity safety buckle device for a crane hook in Example 1;

[0014] Figure 2 This is a schematic diagram of the connection between the pin shaft and the limiting frame in Example 1;

[0015] Figure 3 is a schematic diagram of the limiting frame in Example 1;

[0016] Figure 4 This is a schematic diagram of the counterweight frame in Example 1.

[0017] The parts indicated by the numbers in the accompanying drawings are as follows:

[0018] 101, hook body; 102, limit frame; 103, pin shaft; 104, counterweight frame; 301, mounting seat; 401, end of counterweight frame; 402, counterweight end; 403, clearance hole. DETAILED DESCRIPTION

[0019] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0020] Example 1

[0021] like Figure 1-4 As shown, this embodiment provides a hook with a gravity-type safety buckle device, including a hook body 101, and a hook groove 105 on the hook body 101, characterized in that: a safety buckle device is provided on the hook body 101, the safety buckle device is installed on the hook body 101 through a pin shaft 103 and the safety buckle device can rotate around the pin shaft 103, the safety buckle device includes a limit frame 102 and a counterweight frame 104, and the limit frame 102 can rotate around the pin shaft to the open end of the hook groove 105 under the action of the counterweight frame 104 and close the open end of the hook groove 105.

[0022] The device is mainly made of stainless steel. The limit frame 102 is made of stainless steel round steel 202 with a diameter of 6 mm and bent into a U shape with a width of 6 cm and a height of 6 cm. The counterweight frame 104 has a stainless steel round steel 202 at one end and a solid stainless steel structure at the tail.

[0023] The length of the counterweight end of this structure is 22cm, and the 17cm near the fulcrum end is made of 6mm diameter stainless steel round steel. The 5cm range at the tail is designed with a solid stainless steel structure, and most of the weight of the structure is placed at the tail to increase the gravity ratio of both ends of the fulcrum by more than 3 times to avoid the excessive friction at the fulcrum pin position to offset the gravity of the counterweight end 104.

[0024] In this embodiment, the limit frame 102 is in the shape of a U-shaped rod and both ends of the U-shaped rod body are provided with mounting seats 301. The mounting seats 301 at both ends are provided with mounting holes on the same axis for the two ends of the pin shaft 103 to pass through. The end 401 of the counterweight frame 104 is fixed on the mounting seat 301, and the other end is the counterweight end 402.

[0025] In the above embodiment, the overall length of the counterweight end is 22 cm, two stainless steel round steels 202 with a diameter of 6 mm are used near the fulcrum end, and the tail is a solid stainless steel structure, which is designed to place the center of gravity at the tail, which helps to keep the safety buckle in a naturally closed state when no force is applied, thereby enhancing safety.

[0026] In this embodiment, a clearance hole 103 is provided in the middle of the counterweight frame 104 for the hook body 101 to pass through.

[0027] In this embodiment, the pin shaft 103 includes a smooth rod section and a threaded section, two mounting seats 301 are sleeved on the smooth rod section, and the portion of the smooth rod section located between the two mounting seats 301 is the mounting section of the hook body 101; the threaded section is threadedly connected with a nut for fixing the safety buckle device on the hook body 101.

[0028] Through this embodiment, a special installation section is provided for the hook body 101. This design improves the structural stability of the entire hook and also makes the installation and maintenance process simpler and more efficient.

[0029] In specific implementation, the operator installs the safety buckle device on the crane hook 101 through the pin shaft 103, and uses its own weight to keep the limit frame 102 in a closed state. When lifting objects, the limit frame 102 is manually opened, and released after the objects are hung firmly. The gravity makes the limit frame 102 automatically close, thereby locking the hook 101 to ensure the safety of the lifting process. This design simplifies the operation process of the hook and improves the safety factor of the operation.

[0030] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A hook with a gravity safety buckle device, characterized in that: The invention comprises a hook body (101), wherein the hook body (101) has a hook groove (105), and is characterized in that: a safety buckle device is provided on the hook body (101), the safety buckle device is installed on the hook body (101) through a pin shaft (103) and the safety buckle device can rotate around the pin shaft (103), the safety buckle device comprises a limit frame (102) and a counterweight frame (104), and the limit frame (102) can rotate around the pin shaft to the open end of the hook groove (105) under the action of the counterweight frame (104) and close the open end of the hook groove (105); The pin shaft (103) comprises a polished rod section and a threaded section. Two mounting seats (301) are sleeved on the polished rod section. The portion of the polished rod section located between the two mounting seats (301) is a hook body (101) mounting section. The threaded section is threadedly connected with a nut for fixing the safety buckle device on the hook body (101). One end (401) of the counterweight frame (104) is fixed on the mounting seat (301), and the other end is a counterweight end (402). The one end (401) is a stainless steel round steel, and the counterweight end (402) is a solid stainless steel structure.

2. A hook with a gravity safety buckle device according to claim 1, characterized in that The limiting frame (102) is in the shape of a U-shaped rod, and mounting seats (301) are provided at both ends of the U-shaped rod body. The mounting seats (301) at both ends are provided with mounting holes on the same axis for the two ends of the pin shaft (103) to pass through.

3. A hook with a gravity safety buckle device according to claim 1, characterized in that A clearance hole (403) for the hook body (101) to pass through is provided in the middle of the counterweight frame (104).

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