A tower crane hook

Abstract

This utility model discloses a tower crane hook, mainly relating to the field of tower crane hook technology. It includes a hook body, a disassembly / assembly assembly, and a mounting plate. The mounting plate has a U-shaped cross-section. A pulley is rotatably connected inside the mounting plate, and a lifting rope is driven through the arc surface of the pulley. The hook body is positioned below the mounting plate via the disassembly / assembly assembly, which is located on the lower surface of the mounting plate. The disassembly / assembly assembly includes a fixed cylinder. The upper end of the fixed cylinder is fixedly connected to the lower surface of the mounting plate, and the inner wall of the fixed cylinder fits against the arc surface of the hook body. A threaded ring is threadedly connected to the outer wall of the fixed cylinder, and a compression ring is fixedly connected to the lower surface of the threaded ring. The beneficial effect of this utility model is that after the lifting hook wears out, it can be easily replaced, avoiding the scrapping of the entire lifting device due to hook wear, and reducing the long-term use cost of the hook.

Description

Technical Field

[0001] This utility model relates to the field of tower crane hook technology, and in particular to a tower crane hook. Background Technology

[0002] A tower crane hook is a metal hook-shaped device at the end of a tower crane used to suspend and lift heavy objects. It is mainly used in construction sites, ports and other places to efficiently lift large materials such as steel and concrete.

[0003] Existing technologies, such as the utility model patent with announcement number CN220596803U, disclose a safety hook for tower cranes. The key technical points are as follows: the weight of the object hooked on the hook body is transmitted sequentially through the hook body, connecting rod, limiting mechanism, and vertical rod to the horizontal rod. The horizontal rod moves downward under force, pressing against a pressure sensor. When the pressure sensor detects a pressure exceeding a preset safety pressure value, the central processing unit triggers an alarm and activates the lifting device. The lifting device raises the upper end of the sliding rod, pulling the right end of the left connecting rod and the left end of the right connecting rod upward. This, in turn, pulls the left baffle to the right and the right baffle to the left, respectively, causing the left locking block to move to the right and the right locking block to move to the left, disengaging them from the left and right locking slots. This releases the limiting between the lower end of the vertical rod and the insertion hole, allowing the lower end of the vertical rod and the connecting rod to detach. This utility model not only issues an alarm when lifting overweight goods but also achieves automatic unhooking, significantly improving the safety of equipment use.

[0004] Regarding the above-mentioned issues, the following technical defects were found: Traditional hooks are usually fixedly welded to the lifting equipment. During use, due to frequent friction, overload, or metal fatigue, key parts such as the hook body are worn. Since the hook cannot be replaced separately, the entire lifting equipment assembly must be scrapped. This not only increases equipment maintenance costs, but also affects construction efficiency due to the long replacement cycle. Utility Model Content

[0005] The purpose of this utility model is to solve the problems in the existing technology where traditional hooks are usually fixedly welded to the lifting equipment, which increases equipment maintenance costs and affects construction efficiency due to long replacement cycles. Therefore, a tower crane hook is proposed.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a tower crane hook, comprising a hook body, a disassembly assembly, and a mounting plate. The mounting plate has a U-shaped cross-section. A pulley is rotatably connected inside the mounting plate, and a lifting rope is drivenly connected to the arc surface of the pulley. The hook body is positioned below the mounting plate by means of the disassembly assembly, which is located on the lower surface of the mounting plate. The disassembly assembly includes a fixed cylinder, the upper end of which is fixedly connected to the lower surface of the mounting plate. The inner wall of the fixed cylinder fits against the arc surface of the hook body. A threaded ring is threadedly connected to the outer wall of the fixed cylinder, and a compression ring is fixedly connected to the lower surface of the threaded ring. Several balls slide through the outer wall of the fixed cylinder, and an adjusting plate is fixedly connected to the arc surface of the balls. The adjusting plate has a right-angled trapezoidal cross-section, and the arc surface of the compression ring abuts against the inclined side of the adjusting plate. Several circular holes are opened on the arc surface of the hook body, and the size of the circular holes is adapted to the size of the balls.

[0007] The effect achieved by the above components is that, by setting up disassembly and assembly components, the lifting hook can be easily replaced after wear and tear, avoiding the scrapping of the entire lifting device due to hook wear and reducing the long-term use cost of the hook.

[0008] Preferably, a partition is fixedly connected to the lower surface of the adjusting plate, a slide rod is slidably passed through the side of the partition, one end of the slide rod is fixedly connected to the outer wall of the fixed cylinder, a pad is fixedly connected to the end of the slide rod away from the fixed cylinder, a spring is sleeved on the arc surface of the slide rod, and the two ends of the spring are fixedly connected to the pad and the partition respectively.

[0009] The effect achieved by the above components is that when the extrusion ring separates from the adjustment plate, the spring will drive the ball to move quickly away from the round hole, thus achieving the effect of quickly separating the ball from the round hole.

[0010] Preferably, the inner wall of the fixed cylinder is provided with a positioning hole, and a positioning plate is slidably inserted into the inner wall of the positioning hole. The positioning plate is fixedly connected to the arc surface of the hook body.

[0011] The effect achieved by the above components is that when connecting the fixed cylinder and the hook body, the positioning plate fixed on the arc surface of the hook body needs to be inserted into the positioning hole on the inner wall of the fixed cylinder, so that the ball bearings and the round hole can be quickly aligned.

[0012] Preferably, the outer wall of the threaded ring is provided with a plurality of anti-slip patterns, which are evenly distributed on the outer wall of the threaded ring.

[0013] The effect achieved by the above components is that personnel can rotate the threaded ring with the help of the anti-slip texture, thus achieving the effect of convenient control of the threaded ring.

[0014] Preferably, the arc surface of the hook body is provided with an anti-disengagement component, which includes a fixed base and an arched plate. One side of the fixed base is in contact with the arc surface of the hook body. A rotating shaft is rotatably inserted through the inner wall of the fixed base. A connecting plate is fixedly connected to the arc surface of the rotating shaft. One side of the connecting plate abuts against one end of the hook body. A connecting plate is fixedly connected to one end of the rotating shaft. The connecting plate is rotatably connected to the inner wall of the arched plate. A support plate is fixedly connected to one side of the fixed base. An electric actuator is fixedly connected to the side of the support plate away from the fixed base. The output end of the electric actuator is rotatably connected to the inner wall of the arched plate. A power supply is fixedly connected to the upper surface of the support plate. The electric actuator is electrically connected to the power supply via a wire.

[0015] The effect achieved by the above components is as follows: by setting up the anti-disengagement component, when the hook body is lifting an object, the connecting plate and the hook body form a closed loop space by adjusting the connection plate, which prevents the object from disengaging when the hook is lifting the object, thereby improving the stability of the tower crane hook.

[0016] Preferably, the power supply has a removable battery installed inside.

[0017] Preferably, a plurality of mounting rods are slidably inserted into the inner wall of the fixing base, one end of the mounting rod is fixedly connected to the arc surface of the hook body, and a nut is threaded onto the arc surface of the mounting rod.

[0018] The effect achieved by the above components is that, by setting the above structure, when the hook body is worn out and replaced, the anti-disengagement component can be installed on the new hook body, so that the anti-disengagement component can be reused.

[0019] Preferably, a rubber pad is fixedly connected to the side of the nut near the fixing seat, and one side of the rubber pad abuts against the side of the inner wall of the fixing seat near the mounting rod.

[0020] The effect achieved by the above components is that the rubber pad can increase the friction on the side of the nut near the fixing seat, thereby making the nut more firmly abut against the fixing seat.

[0021] In summary, the beneficial effects of this utility model are as follows:

[0022] In this invention, by setting up a disassembly and assembly component, the lifting hook can be easily replaced after wear and tear, avoiding the scrapping of the entire lifting device due to hook wear and reducing the long-term use cost of the hook.

[0023] In this invention, by setting an anti-disengagement component, when the hook body is lifting an object, the connecting plate and the hook body form a closed loop space by adjusting the connection plate to prevent the object from disengaging when the hook is lifting the object, thereby improving the stability of the tower crane hook in use. Attached Figure Description

[0024] Appendix Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Appendix Figure 2 This is a structural schematic diagram of the disassembly and assembly components of this utility model;

[0026] Appendix Figure 3 This is a partial structural schematic diagram of the disassembly and assembly components of this utility model;

[0027] Appendix Figure 4 This is a structural schematic diagram of the anti-detachment component of this utility model;

[0028] Appendix Figure 5 This is the utility model Figure 4 Enlarged view of point A.

[0029] The following are the labels in the attached diagram: 1. Mounting plate; 2. Pulley; 3. Assembly / disassembly assembly; 301. Fixing cylinder; 302. Threaded ring; 303. Extrusion ring; 304. Ball bearing; 305. Adjusting plate; 306. Round hole; 307. Partition plate; 308. Slide rod; 309. Pad; 310. Spring; 311. Positioning hole; 312. Positioning plate; 313. Anti-slip texture; 4. Anti-disengagement assembly; 401. Fixing base; 402. Rotating shaft; 403. Connecting plate; 404. Connecting plate; 405. Arched plate; 406. Support plate; 407. Electric actuator; 408. Power supply; 409. Mounting rod; 410. Nut; 411. Rubber pad; 5. Lifting rope; 6. Lifting hook body. Detailed Implementation

[0030] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0031] Reference Figure 1 As shown, this utility model provides a technical solution: a tower crane hook, including a hook body 6, a disassembly and assembly component 3 and a mounting plate 1. The mounting plate 1 has a U-shaped cross section. A pulley 2 is rotatably connected inside the mounting plate 1. A lifting rope 5 is connected to the arc surface of the pulley 2. The hook body 6 is set below the mounting plate 1 by means of the disassembly and assembly component 3. The disassembly and assembly component 3 is located on the lower surface of the mounting plate 1. An anti-disengagement component 4 is provided on the arc surface of the hook body 6.

[0032] The following section will explain the specific settings and functions of its disassembly / reassembly component 3 and anti-detachment component 4.

[0033] Reference Figure 2 and Figure 3 As shown in this embodiment: the disassembly assembly 3 includes a fixed cylinder 301, the upper end of which is fixedly connected to the lower surface of the mounting plate 1. The inner wall of the fixed cylinder 301 fits against the arc surface of the hook body 6. A threaded ring 302 is threadedly connected to the outer wall of the fixed cylinder 301. A compression ring 303 is fixedly connected to the lower surface of the threaded ring 302. Several balls 304 slide through the outer wall of the fixed cylinder 301. An adjusting plate 305 is fixedly connected to the arc surface of the balls 304. The cross-section of the adjusting plate 305 is a right trapezoid. The arc surface of the compression ring 303 abuts against the inclined side of the adjusting plate 305. Several circular holes 306 are opened on the arc surface of the hook body 6, and the size of the circular holes 306 is adapted to the balls 304. By setting up the disassembly assembly 3, the hook can be easily replaced after wear and tear, avoiding the scrapping of the entire lifting device due to hook wear and reducing the long-term use cost of the hook. A partition plate 307 is fixedly connected to the lower surface of the adjusting plate 305. A sliding rod 308 is slidably inserted through the side of the partition plate 307. One end of the sliding rod 308 is fixedly connected to the outer wall of the fixed cylinder 301, and a pad 309 is fixedly connected to the end of the sliding rod 308 away from the fixed cylinder 301. A spring 310 is fitted onto the arc surface of the sliding rod 308, and both ends of the spring 310 are fixedly connected to the pad 309 and the partition plate 307, respectively. When the compression ring 303 separates from the adjusting plate 305, the spring 310 will drive the ball 304 to move quickly away from the round hole 306, achieving the effect of quickly separating the ball 304 from the round hole 306. A positioning hole 311 is opened on the inner wall of the fixed cylinder 301, and a positioning plate 312 is slidably inserted into the inner wall of the positioning hole 311. The positioning plate 312 is fixedly connected to the arc surface of the hook body 6. When connecting the fixed cylinder 301 and the hook body 6, the positioning plate 312 fixed to the arc surface of the hook body 6 needs to be inserted into the positioning hole 311 on the inner wall of the fixed cylinder 301, so that the ball 304 and the round hole 306 can be quickly aligned. The outer wall of the threaded ring 302 has several anti-slip grooves 313, which are evenly distributed on the outer wall of the threaded ring 302. Personnel can use the anti-slip grooves 313 to rotate the threaded ring 302, achieving convenient control of the threaded ring 302.

[0034] Reference Figure 4 and Figure 5As shown in this embodiment: the anti-disengagement assembly 4 includes a fixed base 401 and an arched plate 405. One side of the fixed base 401 is in contact with the arc surface of the hook body 6. A rotating shaft 402 is rotatably inserted through the inner wall of the fixed base 401. A connecting plate 403 is fixedly connected to the arc surface of the rotating shaft 402. One side of the connecting plate 403 abuts against one end of the hook body 6. A connecting plate 404 is fixedly connected to one end of the rotating shaft 402. The connecting plate 404 is rotatably connected to the inner wall of the arched plate 405. A support plate 406 is fixedly connected to one side of the fixed base 401. An electric actuator 407 is fixedly connected to the side of the support plate 406 away from the fixed base 401. The output end of the electric actuator 407 is rotatably connected to the inner wall of the arched plate 405. A power supply 408 is fixedly connected to the upper surface of the support plate 406. A removable battery is installed inside the power supply 408. The electric actuator 407 is electrically connected to the power supply 408 via a wire. By setting up the anti-disengagement component 4, when the hook body 6 is lifting an object, the connecting plate 403 and the hook body 6 form a closed loop space through adjustment, preventing the object from disengaging when the hook is lifting, thus improving the stability of the tower crane hook. Several mounting rods 409 are slidably inserted into the inner wall of the fixed base 401. One end of each mounting rod 409 is fixedly connected to the arc surface of the hook body 6, and a nut 410 is threaded onto the arc surface of the mounting rod 409. When the hook body 6 is worn out and replaced, the anti-detachment component 4 can be installed onto the new hook body 6. The specific steps are as follows: First, rotate the nut 410 to separate the rubber pad 411 from the mounting rod 409. Then, move the fixing seat 401 to separate it from the mounting rod 409. Next, move the fixing seat 401 so that the mounting rod 409 on the new hook body 6 is inserted into the fixing seat 401. Then, place the nut 410 on the arc surface of the mounting rod 409 and rotate the nut 410 to make the rubber pad 411 abut against the fixing seat 401. This completes the installation of the anti-detachment component 4. By setting up the above structure, when the hook body 6 is worn out and replaced, the anti-detachment component 4 can be installed onto the new hook body 6, allowing the anti-detachment component 4 to be reused. A rubber pad 411 is fixedly connected to the side of the nut 410 near the fixing seat 401, and one side of the rubber pad 411 abuts against the inner wall of the fixing seat 401 near the mounting rod 409. The rubber pad 411 can increase the friction of the nut 410 on the side near the fixing seat 401, so that the nut 410 can abut against the fixing seat 401 more firmly.

[0035] Detailed Instructions for Use: When using a tower crane hook to lift objects, first hang the object to be lifted on the hook body 6, then use the lifting rope 5 to lift the mounting plate 1. The mounting plate 1 drives the hook body 6, allowing for lifting operations. When the hook body 6 needs to be replaced due to wear, first use the anti-slip texture 313 to rotate the threaded ring 302, causing the threaded ring 302 to move upwards along the outer wall of the fixed cylinder 301. The threaded ring 302 drives the compression ring 303, causing the compression ring 303 to separate from the adjusting plate 305. After the compression ring 303 separates from the adjusting plate 305, the spring 310 will drive the ball bearing 304 to move quickly away from the round hole 306. After the ball bearing 304 separates from the round hole 306, the hook body 6 can be pulled out from inside the fixed cylinder 301. After disassembling the worn hook body 6, insert the new hook body 6 into the fixing cylinder 301. When connecting the fixing cylinder 301 and the hook body 6, the positioning plate 312 fixed on the arc surface of the hook body 6 needs to be inserted into the positioning hole 311 on the inner wall of the fixing cylinder 301. This allows the ball bearing 304 to be quickly aligned with the round hole 306. After the ball bearing 304 is aligned with the round hole 306, the threaded ring 302 is rotated in the opposite direction with the help of the anti-slip texture 313. The threaded ring 302 moves downward along the outer wall of the fixing cylinder 301. The threaded ring 302 drives the compression ring to move downward. The compression ring squeezes the inclined side of the adjusting plate 305. The adjusting plate 305 drives the ball bearing 304. After the ball bearing 304 is inserted into the round hole 306, the replacement of the hook body is completed.

[0036] In this invention, when the hook body 6 is lifting an object, the electric actuator 407 is activated to drive the arched plate 405 to rotate. The arched plate 405 drives the connecting plate 404 to rotate, and the connecting plate 404 drives the rotating shaft 402 to rotate along the inner wall of the fixed seat 401. The rotating shaft 402 drives the connecting plate 403 to rotate, causing the connecting plate 403 to abut against one end of the hook body 6. At this time, the hook body 6 and the connecting plate 403 form a closed loop space, thus preventing the object from detaching. After the object is lifted to the designated position, the electric actuator 407 is activated to drive the arched plate 405 to rotate in the opposite direction. The arched plate 405 drives the connecting plate 404 to rotate in the opposite direction, and the connecting plate 404 drives the rotating shaft 402 to rotate in the opposite direction. The rotating shaft 402 drives the connecting plate 403 to open, and then the object can be removed from the hook. When the hook body 6 is worn out and replaced, the anti-detachment mechanism can be improved. The hook assembly is installed onto the new hook body 6. The specific steps are as follows: First, rotate the nut 410 to separate the rubber pad 411 from the mounting rod 409. Then, move the fixing seat 401 to separate it from the mounting rod 409. Next, move the fixing seat 401 so that the mounting rod 409 on the new hook body 6 is inserted into the fixing seat 401. Then, put the nut 410 on the arc surface of the mounting rod 409 and rotate the nut 410 to make the rubber pad 411 abut against the fixing seat 401. This completes the installation of the anti-detachment hook assembly. By setting the above structure, when the hook body 6 is worn out and replaced, the anti-detachment hook assembly can be installed onto the new hook body 6, so that the anti-detachment hook assembly can be reused. The rubber pad 411 can increase the friction of the nut 410 near the fixing seat 401, so that the nut 410 can abut against the fixing seat 401 more firmly.

Claims

1. A tower crane hook, comprising a hook body (6), a disassembly assembly (3), and a mounting plate (1), characterized in that: The mounting plate (1) has a U-shaped cross-section. A pulley (2) is rotatably connected inside the mounting plate (1). A lifting rope (5) is connected to the arc surface of the pulley (2). The hook body (6) is positioned below the mounting plate (1) via a disassembly assembly (3). The disassembly assembly (3) is located on the lower surface of the mounting plate (1). The disassembly assembly (3) includes a fixing cylinder (301). The upper end of the fixing cylinder (301) is fixedly connected to the lower surface of the mounting plate (1). The inner wall of the fixing cylinder (301) is in contact with the arc surface of the hook body (6). The outer wall of the fixed cylinder (301) is threaded with a threaded ring (302), and the lower surface of the threaded ring (302) is fixedly connected with an extrusion ring (303). Several balls (304) are slidably passed through the outer wall of the fixed cylinder (301). An adjustment plate (305) is fixedly connected to the arc surface of the balls (304). The cross section of the adjustment plate (305) is a right trapezoid. The arc surface of the extrusion ring (303) abuts against the inclined waist side of the adjustment plate (305). Several round holes (306) are opened on the arc surface of the hook body (6). The size of the round holes (306) is adapted to the size of the balls (304).

2. A tower crane hook according to claim 1, characterized in that: A partition plate (307) is fixedly connected to the lower surface of the adjusting plate (305). A slide rod (308) is slidably passed through the side of the partition plate (307). One end of the slide rod (308) is fixedly connected to the outer wall of the fixed cylinder (301). A pad block (309) is fixedly connected to the end of the slide rod (308) away from the fixed cylinder (301). A spring (310) is sleeved on the arc surface of the slide rod (308). The two ends of the spring (310) are fixedly connected to the pad block (309) and the partition plate (307) respectively.

3. A tower crane hook according to claim 1, characterized in that: The inner wall of the fixed cylinder (301) is provided with a positioning hole (311), and a positioning plate (312) is slidably inserted into the inner wall of the positioning hole (311). The positioning plate (312) is fixedly connected to the arc surface of the hook body (6).

4. A tower crane hook according to claim 1, characterized in that: The outer wall of the threaded ring (302) is provided with a plurality of anti-slip textures (313), which are evenly distributed on the outer wall of the threaded ring (302).

5. A tower crane hook according to claim 1, characterized in that: The hook body (6) has an anti-disengagement component (4) on its arc surface. The anti-disengagement component (4) includes a fixed base (401) and an arched plate (405). One side of the fixed base (401) is in contact with the arc surface of the hook body (6). A rotating shaft (402) is rotatably inserted through the inner wall of the fixed base (401). A connecting plate (403) is fixedly connected to the arc surface of the rotating shaft (402). One side of the connecting plate (403) abuts against one end of the hook body (6). One end of the rotating shaft (402) is fixedly connected to a connecting plate. The connecting plate (404) is rotatably connected to the inner wall of the arched plate (405). A support plate (406) is fixedly connected to one side of the fixed seat (401). An electric actuator (407) is fixedly connected to the side of the support plate (406) away from the fixed seat (401). The output end of the electric actuator (407) is rotatably connected to the inner wall of the arched plate (405). A power supply (408) is fixedly connected to the upper surface of the support plate (406). The electric actuator (407) is electrically connected to the power supply (408) via a wire.

6. A tower crane hook according to claim 5, characterized in that: A plurality of mounting rods (409) are slidably inserted into the inner wall of the fixed base (401). One end of the mounting rod (409) is fixedly connected to the arc surface of the hook body (6), and a nut (410) is threaded onto the arc surface of the mounting rod (409).

7. A tower crane hook according to claim 6, characterized in that: A rubber pad (411) is fixedly connected to the side of the nut (410) near the fixing seat (401), and one side of the rubber pad (411) abuts against the side of the inner wall of the fixing seat (401) near the mounting rod (409).

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