Crane lifting hook anti-unhooking device convenient to position

Abstract

The utility model belongs to the technical field of crane lifting hooks, and particularly relates to a crane lifting hook anti-unhooking device convenient to position, which comprises a crane lifting hook, an arc-shaped hook is fixedly mounted at one end of the crane lifting hook, and a connecting device is arranged at one end, far away from the arc-shaped hook, of the crane lifting hook and comprises a connecting unit and a fixing unit. The connecting unit is arranged at the top of the crane hook, and the fixing unit is arranged above the crane hook. According to the crane lifting hook anti-unhooking device convenient to position, by arranging the arc-shaped hook, when materials are lifted, due to the gravity of the lifted materials, a lifting appliance can be tightly attached to the lifting hook, and even if the lifting appliance slides due to factors such as shaking or misoperation in the lifting process, the lifting appliance can be tightly hooked through the arc-shaped hook, so that the lifting appliance can be effectively prevented from unhooking; according to the lifting hook, the stability between the lifting hook and the lifting appliance can be ensured, the operation reliability of the crane is improved, the lifting process is more stable, the operation interruption caused by falling of the lifting hook is reduced, and personnel and equipment can be protected from unnecessary damage.

Description

Technical Field

[0001] The utility model relates to the technical field of crane hooks, in particular to a crane hook anti-unhooking device which is easy to position. Background Art

[0002] During the process of crane hoisting, the material frame in the hook is easy to fall out due to the shaking of the material frame, improper operation or equipment failure, which may cause equipment damage or even personal injury accidents, thus posing a great safety hazard. The traditional anti-unhooking device is usually composed of a spring, a fixing bolt and an anti-unhooking baffle (made of thin iron sheet). The spring tension is used to make the anti-unhooking baffle close to the inner wall of the tail end of the hook to prevent the hoisted object from falling out of the hook.

[0003] At present, the materials in the crystal ball workshop are pasteurized, and the water temperature reaches 83°C. The traditional anti-unhooking device requires manual unhooking, and the personnel's hands need to come into contact with hot water, which can easily cause safety accidents such as scalding. In addition, it is inconvenient to replace the hook when it is worn.

[0004] For this reason, we urgently need to provide a kind of driving hook anti-unhooking device that is easy to locate. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-unhooking device for a crane hook which is easy to position, so as to solve the problems that the traditional anti-unhooking device proposed in the above background technology needs to be manually unhooked, and the personnel's hands need to come into contact with hot water, which may easily cause safety accidents such as scalding, and it is inconvenient to replace the hook when it is worn.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a crane hook anti-unhooking device that is easy to position, comprising a crane hook, one end of which is fixedly mounted with an arc hook, and an end of the crane hook away from the arc hook is provided with a connecting device.

[0007] The connecting device comprises a connecting unit and a fixing unit, wherein the connecting unit is arranged on the top of the crane hook, and the fixing unit is arranged above the crane hook.

[0008] The connecting unit includes a connecting ring 1, a connecting ring 2, a rotating shaft and a locking block. The connecting ring 1 is fixedly installed on the top of the crane hook, the connecting ring 2 is installed inside the connecting ring 1, the rotating shaft is fixedly installed inside one end of the connecting ring 1, and one end of the locking block is rotatably connected to the outside of the rotating shaft.

[0009] Preferably, the fixing unit includes a pin, a fixing frame, a spring, a disc, a clamping rod and a pull rod, the pin passes through the interior of one end of the connecting ring, the fixing frame is fixedly installed on the front and rear sides of one end of the connecting ring, one end of the spring is fixedly installed on the top of the fixing frame, the disc is fixedly installed on the other end of the spring, the clamping rod is fixedly installed on the bottom of the disc and extends to the bottom of the fixing frame, and the pull rod is fixedly installed on the top of the disc and extends to the top of the fixing frame.

[0010] Preferably, installation grooves are provided inside both ends of the connecting ring one, and the rotating shaft and locking block are installed inside the installation grooves. The locking block rotates around the rotating shaft, so that the opening of the connecting ring one is opened, which facilitates the connection between the connecting ring two and the connecting ring one.

[0011] Preferably, a clamping hole is provided at the lower end of the locking block, and a positioning hole is provided at the lower end of the connecting ring. A pin shaft penetrates the connecting hole and the clamping hole, thereby fixing the locking block.

[0012] Preferably, the lower end of the locking block is located inside the mounting groove, and when the locking block fits against the inner wall of the mounting groove, the clamping hole and the positioning hole are just located on the same straight line, which facilitates the clamping connection between the pin shaft and the locking block.

[0013] Preferably, the front and rear ends of the pin shaft are provided with insertion holes with a diameter equal to that of the clamping rod, and the pin shaft is fixed by inserting the clamping rod into the insertion holes.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The anti-unhooking device for the crane hook which is easy to position is provided with an arc-shaped hook. When the material is hoisted, the sling will be close to the hook due to the gravity of the hoisted material. Even if the sling slides due to shaking or improper operation during the hoisting process, the sling can be hooked tightly by the arc-shaped hook, which can effectively prevent the sling from unhooking. The stability between the hook and the sling is ensured, the reliability of the crane operation is improved, the lifting process is more stable, and the operation interruption caused by the hook falling off is reduced, which helps to protect personnel and equipment from unnecessary damage.

[0016] 2. The anti-unhooking device for the crane hook which is easy to position is provided with a connection unit, and by pushing the locking block to rotate around the rotating shaft, the opening of the connecting ring 1 is opened, so that the connecting ring 2 is easy to connect with the connecting ring 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a disassembled view of the connection between the locking block and the connecting ring of the utility model;

[0019] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0020] Figure 4 This is a disassembled diagram of the fixed unit structure of the utility model.

[0021] In the figure: 1, crane hook; 2, arc hook; 301, connecting ring 1; 302, connecting ring 2; 303, rotating shaft; 304, locking block; 401, pin shaft; 402, fixing frame; 403, spring; 404, disc; 405, clamping rod; 406, pulling rod. DETAILED DESCRIPTION

[0022] 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0024] Embodiment 1:

[0025] A crane hook anti-unhooking device which is easy to position comprises a crane hook 1, an arc hook 2 is fixedly mounted on one end of the crane hook 1, and a connecting device is arranged on the end of the crane hook 1 away from the arc hook 2.

[0026] The connecting device comprises a connecting unit and a fixing unit. The connecting unit is arranged on the top of the crane hook 1 , and the fixing unit is arranged above the crane hook 1 .

[0027] The connecting unit comprises a connecting ring 1 301, a connecting ring 2 302, a rotating shaft 303 and a locking block 304. The connecting ring 1 301 is fixedly installed on the top of the crane hook 1. A clamping hole is provided at the lower end of the locking block 304. A positioning hole is provided at the lower end of the connecting ring 1 301. A pin 401 penetrates the connecting hole and the clamping hole to fix the locking block 304. Installation grooves are provided inside the two ends of the connecting ring 1 301. The rotating shaft 303 and the locking block 304 are installed inside the installation grooves. The locking block 304 rotates around the rotating shaft 303 to make the connecting ring 1 301 The opening is opened to facilitate the connection between the second connecting ring 302 and the first connecting ring 301. The second connecting ring 302 is installed inside the first connecting ring 301. The rotating shaft 303 is fixedly installed inside one end of the connecting ring 301. One end of the locking block 304 is rotatably connected to the outside of the rotating shaft 303. The lower end of the locking block 304 is located on the inner side of the installation groove. When the locking block 304 is in contact with the inner wall of the installation groove, the clamping hole and the positioning hole are just located on the same straight line. The installation groove plays a positioning role in the connection between the pin shaft 401 and the clamping hole and the positioning hole, which facilitates the clamping connection between the pin shaft 401 and the locking block 304.

[0028] Embodiment 2:

[0029] On the basis of Example 1: the fixing unit includes a pin 401, a fixing frame 402, a spring 403, a disc 404, a clamping rod 405 and a pull rod 406. The pin 401 runs through the interior of one end of the connecting ring 301. The front and rear ends of the pin 401 are provided with a socket with the same diameter as the clamping rod 405. The pin 401 is fixed by inserting the clamping rod 405 into the socket. The fixing frame 402 is fixedly installed on the front and rear sides of one end of the connecting ring 301. One end of the spring 403 is fixedly installed on the top of the fixing frame 402. The spring 403 squeezes the fixing frame 402 to provide a downward thrust for the disc 404, so that the clamping rod 405 and the socket opened by the pin 401 cooperate more stably. The disc 404 is fixedly installed on the other end of the spring 403. The clamping rod 405 is fixedly installed on the bottom of the disc 404 and extends to the bottom of the fixing frame 402. The pull rod 406 is fixedly installed on the top of the disc 404 and extends to the top of the fixing frame 402.

[0030] When in use, connect the crane hook 1 to the hanging ear of the material, and then start the lifting equipment. Due to the gravity of the lifted material, the sling will be close to the hook. Even if the sling slides due to shaking or improper operation during the lifting process, it can effectively prevent the sling from being unhooked. When the crane hook 1 is damaged and needs to be replaced, pull the pull rod 406 upward to drive the disc 404 and the clamping rod 405 to move upward, so that the clamping rod 405 is separated from the socket opened by the pin shaft 401, and then pull out the pin shaft 401, and then push the locking block 304. Rotate around the rotating shaft 303 to open the opening of the connecting ring 1 301, then remove the connecting ring 1 301 and the crane hook 1 from the connecting ring 2 302, then connect the connecting ring 1 301 connected to the new crane hook 1 with the connecting ring 2 302, then insert the pin 401 through the positioning hole opened in the connecting ring 1 301 and the clamping hole opened in the locking block 304, and finally connect the clamping rod 405 with the socket opened in the pin 401 to fix the locking block 304, thereby completing the replacement of the crane hook 1.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A crane hook anti-unhooking device that is easy to position, comprising a crane hook (1), characterized in that: An arc-shaped hook (2) is fixedly mounted on one end of the crane hook (1), and a connecting device is provided on the end of the crane hook (1) away from the arc-shaped hook (2); The connecting device comprises a connecting unit and a fixing unit, wherein the connecting unit is arranged on the top of the crane hook (1), and the fixing unit is arranged above the crane hook (1); The connection unit comprises a connection ring 1 (301), a connection ring 2 (302), a rotating shaft (303) and a locking block (304); the connection ring 1 (301) is fixedly mounted on the top of the crane hook (1); the connection ring 2 (302) is mounted inside the connection ring 1 (301); the rotating shaft (303) is fixedly mounted inside one end of the connection ring 1 (301); and one end of the locking block (304) is rotatably connected to the outside of the rotating shaft (303).

2. The anti-unhooking device for crane hooks that is easy to position according to claim 1, characterized in that: The fixing unit comprises a pin (401), a fixing frame (402), a spring (403), a disc (404), a clamping rod (405) and a pull rod (406); the pin (401) passes through the interior of one end of the connecting ring (301); the fixing frame (402) is fixedly installed on the front and rear sides of one end of the connecting ring (301); one end of the spring (403) is fixedly installed on the top of the fixing frame (402); the disc (404) is fixedly installed on the other end of the spring (403); the clamping rod (405) is fixedly installed on the bottom of the disc (404) and extends to the bottom of the fixing frame (402); and the pull rod (406) is fixedly installed on the top of the disc (404) and extends to the top of the fixing frame (402).

3. The anti-unhooking device for crane hooks that is easy to position according to claim 1, characterized in that: Both ends of the connecting ring 1 (301) are provided with mounting grooves, and the rotating shaft (303) and the locking block (304) are installed inside the mounting grooves.

4. The anti-unhooking device for a crane hook that is easy to position according to claim 1, characterized in that: The locking block (304) has a locking hole at its lower end, and the connecting ring (301) has a positioning hole at its lower end.

5. The anti-unhooking device for crane hooks that is easy to position according to claim 1, characterized in that: The lower end of the locking block (304) is located inside the installation groove, and when the locking block (304) is in contact with the inner wall of the installation groove, the locking hole and the positioning hole are located exactly on the same straight line.

6. The anti-unhooking device for crane hooks that is easy to position according to claim 2, characterized in that: Insertion holes having a diameter equal to that of the clamping rod (405) are provided inside the front and rear ends of the pin shaft (401).

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