A tower crane lifting hook

Abstract

The present invention belongs to the technical field of lifting equipment, specifically a hook for tower crane lifting, comprising a hollow disk; a rotating wheel is rotatably connected inside the hollow disk; a sling is provided on the outside of the rotating wheel; a mounting frame; a mounting block is fixedly connected to the bottom of the mounting frame; a hook, and the top of the hook passes through the mounting block and is rotatably connected thereto; a fixing ring, the fixing ring is fixedly connected to the upper side of the mounting block, and the top of the hook is located inside the fixing ring; a group of insertion holes are evenly distributed on the circumference of the inner side of the fixing ring; a sliding hole; a pair of pins are connected to the sliding hole at both ends in a sliding sealing manner; an elastic rope is fixed between the pins and the side wall of the sliding hole; air is filled into the sliding hole through an inflation component, and the air pushes a pair of pins to slide to both sides, and then the pin is inserted into one of the insertion holes, so that the hook cannot rotate, and after the subsequent sling lifts the goods, the goods cannot rotate in the air, thereby improving the stability during the cargo transportation process and reducing safety hazards.

Description

Technical Field

[0001] The invention belongs to the technical field of lifting equipment, in particular to a lifting hook for a tower crane. Background Art

[0002] Tower cranes, also known as tower cranes, are the most common type of lifting equipment used on construction sites. They are used to transport raw materials such as rebar, steel pipes, steel plates, and timber. When in use, a tower crane attaches a cargo rope to a hook, which then lifts the cargo and transports it to another location on the construction site.

[0003] The tower crane lifting hook in the prior art can usually rotate in the horizontal direction, so that when workers hang the rope of the goods on the hook or dismantle it, they can rotate the hook to facilitate operation. However, in the process of lifting and transporting the goods, the goods are easily subjected to uneven force in the air and shake, which in turn causes the hook to rotate. The center of gravity of the goods is unstable during rotation, posing a certain safety hazard.

[0004] To this end, the present invention provides a tower crane lifting hook. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a tower crane lifting hook according to the present invention comprises:

[0007] A pair of hollow disks are provided; a rotating wheel is rotatably connected inside the hollow disk; a sling is provided outside the rotating wheel;

[0008] A mounting frame, the mounting frame being fixed between a pair of hollow disks; a mounting block being fixed to the bottom of the mounting frame;

[0009] A hook, the top of which passes through the mounting block and is rotatably connected thereto;

[0010] A fixing ring, the fixing ring is fixed to the upper side of the mounting block, and the top of the hook is located inside the fixing ring; a group of sockets are evenly distributed around the inner circumference of the fixing ring;

[0011] A sliding hole is provided at the top of the hook; a pair of latches are connected in a sliding and sealing manner inside the two ends of the sliding hole; an elastic rope is fixed between the latches and the side wall of the sliding hole;

[0012] An inflation component, the inflation component is used to inflate air into the sliding hole;

[0013] The tower crane lifting hook in the prior art can usually rotate in the horizontal direction, so that when workers hang the rope of the goods on the hook or dismantle it, they can rotate the hook to facilitate operation. However, in the process of lifting and transporting the goods, the goods are easily subjected to uneven force in the air and shake, which in turn causes the hook to rotate. The center of gravity of the goods is unstable during rotation, and there is a certain safety hazard. At this time, when the present invention is used, the worker can rotate the hook in the horizontal direction to facilitate hanging the rope of the goods on the hook, and then fill the sliding hole with air through the inflation component. The air pushes a pair of pins to slide to both sides, and then the pin is inserted into one of the holes, making the hook unable to rotate. After the subsequent sling lifts the goods, the goods cannot rotate in the air, thereby improving the stability of the goods during transportation and reducing safety hazards.

[0014] Preferably, the inflatable component is an elastic block, and the elastic block is fixed to the inner side of the bottom of the hook; the elastic block is set to a hollow structure, and air is stored inside the elastic block; the elastic block and the sliding hole are connected to each other through a pipeline; when lifting the cargo, since the rope of the cargo is located on the inner side of the hook and squeezes the elastic block, the air inside the elastic block is squeezed into the sliding hole through the pipeline, and the pin is prompted to extend outward, so that the hook is automatically locked when the cargo is lifted, without the need for additional manual operation, thereby improving the automation level of the hook, and after the cargo is subsequently transported to the target position, it no longer applies force to the hook through the rope after it contacts the ground, and then the elastic rope pulls the pin to reset it to the inside of the sliding hole, and the air inside the sliding hole returns to the inside of the elastic block, and prompts the elastic block to expand and recover, so that the hook can be automatically unlocked, making it convenient to rotate the hook and remove the rope of the cargo from the hook.

[0015] Preferably, a group of guide buckets are evenly distributed on the inner circumference of the fixed ring, and the number of guide buckets is the same as that of the sockets and they correspond one to one; the guide buckets are arranged in a trumpet shape, and the end with a smaller diameter of the guide bucket is aligned with the socket; adjacent guide buckets are in contact with each other; since the position of the hook is random after rotation, there may be a problem that the sliding hole and the socket cannot be aligned. By arranging a guide bucket at the outer end of the socket, if the pin cannot be aligned with the socket when extended, the pin will abut against the inside of the guide bucket and slide along the inclined surface of the guide bucket, so that the hook can be fine-tuned at a small angle, and then the pin can be inserted into the inside of the socket along the inclined surface of the guide bucket, thereby realizing smooth locking of the hook.

[0016] Preferably, a pair of support plates are fixedly connected to one end of the pin away from the elastic rope; a roller is rotatably connected between the pair of support plates via a rotating shaft; by providing the roller, when the end of the pin moves toward the guide bucket, the roller can contact the guide bucket and roll on the inclined surface of the guide bucket, thereby reducing the friction resistance between the end of the pin and the guide bucket, making it easier for the pin to slide into the inside of the socket, thereby improving the coupling efficiency between the pin and the socket.

[0017] Preferably, a push block is slidably connected to the inside of the socket; a spring is fixed between the side of the push block away from the guide bucket and the blind end of the socket; the pin and the push block are both made of magnetic material, and the pin and the push block attract each other when they are close to each other; since tower cranes are usually used in construction sites, the construction site environment is complex and dusty, so dust can easily enter the inside of the socket, resulting in the problem that the pin cannot be smoothly combined with the socket. At this time, by setting a push block and a spring, when the pin approaches the socket, the pin will generate an attraction to the push block and drive the push block to slide outward, and then the push block pushes the dust inside the socket outward, which plays a role in automatically cleaning the dust. After that, the pin is inserted into the socket and pushes the push block to reset.

[0018] Preferably, a group of elastic membranes are evenly distributed on the outside of the guide bucket, and air is stored inside the closed cavity formed between the elastic membrane and the guide bucket; the elastic membrane is fixedly connected to a billiard ball on the side close to the guide bucket through a connecting rod; the push block and the socket are connected in a sliding seal; the closed cavity between the elastic membrane and the guide bucket is connected to the blind end of the socket through a hose; when the pin approaches the socket, the magnetic attraction drives the push block to slide outward, thereby generating negative pressure inside the blind end of the socket, and the air between the elastic membrane and the guide bucket is sucked into the blind end of the socket through the hose, and then the elastic membrane approaches the side wall of the guide bucket, and knocks the side wall of the guide bucket through the connecting rod and the billiard ball, so that the guide bucket vibrates, and then after the push block pushes the dust in the socket outward, the vibration can prevent the dust from adhering to the inside of the guide bucket, thereby improving the dust shedding efficiency.

[0019] Preferably, a pair of fixed plates are fixedly connected to the outer side of the guide bucket near the billiard ball; a group of reeds are fixedly connected to the opposite sides of the pair of fixed plates; by arranging the fixed plates and the reeds, in the process of the elastic membrane driving the connecting rod and the billiard ball to move toward the side wall of the guide bucket, the billiard ball first moves between the pair of fixed plates and sequentially moves multiple reeds, and the reeds continue to swing when rebounding, and drive the guide bucket to further vibrate through the fixed plates, and then the billiard ball hits the side wall of the guide bucket again, which can increase the vibration frequency of the guide bucket and further prevent dust from adhering to the inside of the guide bucket.

[0020] Preferably, a fixed shaft is fixedly connected to the inside of the hollow disk, and the wheel is rotatably connected to the outside of the fixed shaft; the fixed shaft is set to a hollow structure, and lubricant is stored inside the fixed shaft; a through hole is opened at the top of the fixed shaft; a sponge column is fixed to the inside of the through hole; a cotton strip is fixed to the lower end of the sponge column, and the lower end of the cotton strip extends to the bottom of the fixed shaft; in the process of lifting or lowering the goods by the sling, the sling can drive the wheel to rotate around the fixed shaft, and by setting the sponge column and the cotton strip, the cotton strip transfers the lubricant inside the fixed shaft to the inside of the sponge column, and then the top of the sponge column can provide lubricant for the rotation between the wheel and the fixed shaft, thereby reducing friction and improving rotation efficiency.

[0021] Preferably, a group of magnetic blocks are evenly distributed on the inner circumference of the rotating wheel; a magnetic plate is fixed to the lower end of the sponge column, and the cotton strip passes through the magnetic plate; the magnetic blocks and the magnetic plate attract each other when they are close to each other; by arranging the magnetic blocks and the magnetic plate, during the rotation of the rotating wheel, when one of the magnetic blocks rotates to above the sponge column, it will generate an attraction to the magnetic plate, thereby driving the magnetic plate to move upward and squeeze the sponge column, thereby squeezing the lubricant inside the sponge column upward, so that the lubricant can enter the gap between the rotating wheel and the fixed shaft, thereby improving the lubrication efficiency.

[0022] Preferably, a bellows is fixedly connected between the magnetic plate and the inner wall of the top of the fixed shaft, and the sponge column is located inside the bellows; the bellows is made of elastic material; by providing the bellows, when the magnetic plate moves upward and squeezes the sponge column, the bellows can block the side of the sponge column to prevent the lubricant inside the sponge column from overflowing through the side of the sponge column when it is squeezed out, thereby improving the efficiency of the lubricant entering between the rotor and the fixed shaft, and after the subsequent magnetic block moves away from the magnetic plate, the rebound extension of the bellows can improve the recovery efficiency of the sponge column.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. The tower crane lifting hook described in the present invention can be used by workers to rotate the hook in the horizontal direction to facilitate hanging the rope of the cargo on the hook. Thereafter, air is filled into the sliding hole through the inflation component. The air pushes a pair of pins to slide to both sides, and then the pins are inserted into one of the sockets, so that the hook cannot rotate. After the cargo is subsequently lifted by the sling, the cargo cannot rotate in the air, thereby improving the stability of the cargo during transportation and reducing safety hazards.

[0025] 2. The tower crane lifting hook described in the present invention, when lifting cargo, because the rope of the cargo is located on the inner side of the hook and squeezes the elastic block, the air inside the elastic block is squeezed into the sliding hole through the pipeline, and the pin is prompted to extend outward, so that the hook is automatically locked when lifting the cargo, and no additional manual operation is required, thereby improving the automation level of the hook. After the cargo is subsequently transported to the target position, the cargo no longer applies force to the hook through the rope after contacting the ground, and the elastic rope pulls the pin to reset it to the sliding hole. The air inside the sliding hole returns to the elastic block, and the elastic block is prompted to expand and recover, so that the hook can be automatically unlocked, making it convenient to rotate the hook and remove the rope of the cargo from the hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 is a perspective view of the present invention;

[0028] Figure 2 It is a three-dimensional diagram of the hook of the present invention;

[0029] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0030] Figure 4 It is a three-dimensional diagram of the guide bucket in the present invention;

[0031] Figure 5 is a cross-sectional view of the guide bucket of the present invention;

[0032] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle;

[0033] Figure 7 is a cross-sectional view of the hollow disk of the present invention;

[0034] Figure 8 yes Figure 7 A partial enlarged view of point C in the middle.

[0035] In the figure: hollow disk 1, rotating wheel 2, sling 3, mounting frame 4, mounting block 5, hook 6, fixing ring 7, socket 8, sliding hole 9, latch 10, elastic rope 11, elastic block 12, guide bucket 13, support plate 14, roller 15, push block 16, spring 17, elastic membrane 18, connecting rod 19, billiard ball 20, hose 21, fixing plate 22, reed 23, fixed shaft 24, sponge column 25, cotton strip 26, magnetic block 27, magnetic plate 28, bellows 29. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0037] Example 1

[0038] like Figures 1 to 6 As shown, a tower crane lifting hook according to an embodiment of the present invention includes:

[0039] A pair of hollow disks 1 are provided; a rotating wheel 2 is rotatably connected inside the hollow disk 1; a sling 3 is provided outside the rotating wheel 2;

[0040] A mounting frame 4 is fixed between a pair of hollow disks 1; a mounting block 5 is fixed to the bottom of the mounting frame 4;

[0041] A hook 6, the top of which passes through the mounting block 5 and is rotatably connected thereto;

[0042] A fixing ring 7 is fixed to the upper side of the mounting block 5, and the top of the hook 6 is located inside the fixing ring 7; a group of insertion holes 8 are evenly distributed around the inner circumference of the fixing ring 7;

[0043] A sliding hole 9 is provided at the top of the hook 6; a pair of latches 10 are slidably and sealedly connected to the inside of the sliding hole 9 at both ends; an elastic rope 11 is fixedly connected between the latches 10 and the side wall of the sliding hole 9;

[0044] An inflatable component, which is used to inflate air into the sliding hole 9;

[0045] The tower crane lifting hook 6 in the prior art can usually rotate in the horizontal direction, so that when the worker hangs the rope of the cargo on the hook 6 or disassembles it, the hook 6 can be rotated to facilitate operation. However, in the process of lifting and transporting the cargo, the cargo is easily subjected to uneven force in the air and shakes, which causes the hook 6 to rotate. The center of gravity of the cargo is unstable during rotation, and there is a certain safety hazard. At this time, when the present invention is used, the worker can rotate the hook 6 in the horizontal direction to facilitate hanging the rope of the cargo on the hook 6, and then fill the sliding hole 9 with air through the inflation component. The air pushes a pair of pins 10 to slide to both sides, and then the pin 10 is inserted into one of the sockets 8, so that the hook 6 cannot rotate. After the subsequent sling 3 lifts the cargo, the cargo cannot rotate in the air, thereby improving the stability during cargo transportation and reducing safety hazards.

[0046] The inflatable component is an elastic block 12, and the elastic block 12 is fixed to the inner side of the bottom of the hook 6; the elastic block 12 is set to a hollow structure, and air is stored in the elastic block 12; the elastic block 12 and the sliding hole 9 are connected to each other through a pipeline; when lifting the cargo, since the rope of the cargo is located inside the hook 6 and squeezes the elastic block 12, the air inside the elastic block 12 is squeezed into the sliding hole 9 through the pipeline, and the latch 10 is prompted to extend outward, so that the hook 6 is automatically locked when the cargo is lifted, without the need for additional manual operation, thereby improving the automation level of the hook 6, and after the cargo is subsequently transported to the target position, the cargo no longer applies force to the hook 6 through the rope after it contacts the ground, and then the elastic rope 11 pulls the latch 10 back to the sliding hole 9, and the air inside the sliding hole 9 returns to the elastic block 12, and prompts the elastic block 12 to expand and recover, so that the hook 6 can be automatically unlocked, making it convenient to rotate the hook 6 and remove the rope of the cargo from the hook 6.

[0047] A group of guide buckets 13 are evenly distributed on the inner circumference of the fixing ring 7, and the number of guide buckets 13 and the socket 8 are the same and correspond one to one; the guide buckets 13 are arranged in a trumpet shape, and the end of the guide bucket 13 with a smaller diameter is aligned with the socket 8; adjacent guide buckets 13 are in contact with each other; since the position of the hook 6 is random after rotation, there may be a problem that the sliding hole 9 and the socket 8 cannot be aligned. By arranging the guide bucket 13 at the outer end of the socket 8, if the pin 10 cannot be aligned with the socket 8 when extended, the pin 10 will abut against the inside of the guide bucket 13 and slide along the inclined surface of the guide bucket 13, so that the hook 6 is fine-tuned at a small angle, and then the pin 10 can be inserted into the inside of the socket 8 along the inclined surface of the guide bucket 13, so that the hook 6 is smoothly locked.

[0048] A pair of support plates 14 are fixedly connected to one end of the latch 10 away from the elastic rope 11; a roller 15 is rotatably connected between the pair of support plates 14 via a rotating shaft; by providing the roller 15, when the end of the latch 10 moves toward the guide bucket 13, the roller 15 can contact the guide bucket 13 and roll on the inclined surface of the guide bucket 13, thereby reducing the friction resistance between the end of the latch 10 and the guide bucket 13, making it easier for the latch 10 to slide into the inside of the socket 8, thereby improving the connection efficiency between the latch 10 and the socket 8.

[0049] A push block 16 is slidably connected to the inside of the socket 8; a spring 17 is fixedly connected between the side of the push block 16 away from the guide bucket 13 and the blind end of the socket 8; the pin 10 and the push block 16 are both made of magnetic material, and the pin 10 and the push block 16 attract each other when they are close to each other; since tower cranes are usually used in construction sites, the construction site environment is complex and dusty, so dust can easily enter the inside of the socket 8, resulting in the problem that the pin 10 cannot be smoothly combined with the socket 8. At this time, by providing the push block 16 and the spring 17, when the pin 10 approaches the socket 8, the pin 10 will generate an attraction for the push block 16 and drive the push block 16 to slide outward, and then the push block 16 pushes the dust inside the socket 8 outward, which plays a role in automatically cleaning the dust. After that, the pin 10 is inserted into the socket 8 and pushes the push block 16 to reset.

[0050] A group of elastic membranes 18 are evenly distributed on the outside of the guide bucket 13, and air is stored in the closed cavity formed between the elastic membrane 18 and the guide bucket 13; the elastic membrane 18 is fixedly connected to a billiard ball 20 on the side close to the guide bucket 13 through a connecting rod 19; the push block 16 and the socket 8 are connected in a sliding and sealed manner; the closed cavity between the elastic membrane 18 and the guide bucket 13 is connected to the blind end of the socket 8 through a hose 21; when the pin 10 approaches the socket 8, the magnetic attraction drives the push block 16 to slide outward, thereby generating negative pressure inside the blind end of the socket 8, and the air between the elastic membrane 18 and the guide bucket 13 is sucked into the blind end of the socket 8 through the hose 21, and then the elastic membrane 18 approaches the side wall of the guide bucket 13 and knocks the side wall of the guide bucket 13 through the connecting rod 19 and the billiard ball 20, thereby causing the guide bucket 13 to vibrate, and then after the push block 16 pushes the dust in the socket 8 outward, the vibration can prevent the dust from adhering to the inside of the guide bucket 13, thereby improving the dust shedding efficiency.

[0051] A pair of fixed plates 22 are fixedly connected to the outer side of the guide bucket 13 near the billiard ball 20; a group of reeds 23 are fixedly connected to the opposite sides of the pair of fixed plates 22; by providing the fixed plates 22 and the reeds 23, when the elastic membrane 18 drives the connecting rod 19 and the billiard ball 20 to move toward the side wall of the guide bucket 13, the billiard ball 20 first moves between the pair of fixed plates 22 and sequentially moves multiple reeds 23. When the reeds 23 rebound, they continue to swing and drive the guide bucket 13 to further vibrate through the fixed plates 22. Then, the billiard ball 20 hits the side wall of the guide bucket 13 again, which can increase the vibration frequency of the guide bucket 13 and further prevent dust from adhering to the inside of the guide bucket 13.

[0052] Example 2

[0053] like Figures 7 and 8 As shown, compared with Example 1, another embodiment of the present invention is: a fixed shaft 24 is fixedly connected to the inside of the hollow disk 1, and the wheel 2 is rotatably connected to the outside of the fixed shaft 24; the fixed shaft 24 is set to a hollow structure, and lubricant is stored inside the fixed shaft 24; a through hole is opened at the top of the fixed shaft 24; a sponge column 25 is fixed to the inside of the through hole; a cotton strip 26 is fixed to the lower end of the sponge column 25, and the lower end of the cotton strip 26 extends to the bottom of the fixed shaft 24; in the process of lifting or lowering the goods by the sling 3, the sling 3 can drive the wheel 2 to rotate around the fixed shaft 24, and by providing the sponge column 25 and the cotton strip 26, the cotton strip 26 transfers the lubricant inside the fixed shaft 24 to the inside of the sponge column 25, and then the top of the sponge column 25 can provide lubricant for the rotation between the wheel 2 and the fixed shaft 24, thereby reducing friction and improving rotation efficiency.

[0054] A group of magnetic blocks 27 are evenly distributed on the inner circumference of the rotating wheel 2; a magnetic plate 28 is fixed to the lower end of the sponge column 25, and the cotton strip 26 passes through the magnetic plate 28; the magnetic blocks 27 and the magnetic plate 28 attract each other when they are close to each other; by arranging the magnetic blocks 27 and the magnetic plates 28, during the rotation of the rotating wheel 2, when one of the magnetic blocks 27 rotates to above the sponge column 25, it will generate an attraction for the magnetic plate 28, thereby driving the magnetic plate 28 to move upward and squeeze the sponge column 25, thereby squeezing the lubricant inside the sponge column 25 upward, so that the lubricant can enter the gap between the rotating wheel 2 and the fixed shaft 24, thereby improving the lubrication efficiency.

[0055] A bellows 29 is fixedly connected between the magnetic plate 28 and the inner wall of the top of the fixed shaft 24, and the sponge column 25 is located inside the bellows 29; the bellows 29 is made of elastic material; by providing the bellows 29, when the magnetic plate 28 moves upward and squeezes the sponge column 25, the bellows 29 can block the side of the sponge column 25 to prevent the lubricant inside the sponge column 25 from overflowing through the side of the sponge column 25 when it is squeezed out, thereby improving the efficiency of the lubricant entering between the impeller 2 and the fixed shaft 24, and after the subsequent magnetic block 27 moves away from the magnetic plate 28, the bellows 29 rebounds and stretches to improve the recovery efficiency of the sponge column 25.

[0056] Working principle: When the present invention is in use, the worker can rotate the hook 6 in the horizontal direction to conveniently hang the rope of the cargo on the hook 6, and then fill air into the sliding hole 9 through the inflation component. The air pushes a pair of pins 10 to slide to both sides, and then the pin 10 is inserted into one of the insertion holes 8, so that the hook 6 cannot rotate. After the subsequent sling 3 lifts the cargo, the cargo cannot rotate in the air, thereby improving the stability of the cargo transportation process and reducing safety hazards; when lifting the cargo, since the rope of the cargo is located on the inside of the hook 6 and squeezes the elastic block 12, the air inside the elastic block 12 is squeezed into the sliding hole 9 through the pipeline, and the pin 10 is prompted to extend outward, so that the hook 6 is automatically locked when lifting the cargo, without the need for additional manual operation, thereby improving the stability of the hook 6 The degree of automation is improved, and after the goods are subsequently transferred to the target location, the goods no longer exert force on the hook 6 through the rope after they touch the ground, and then the elastic rope 11 pulls the pin 10 to return to the inside of the slide hole 9, and the air inside the slide hole 9 returns to the inside of the elastic block 12, and causes the elastic block 12 to expand and recover, so that the hook 6 can be automatically unlocked, which is convenient for rotating the hook 6 and removing the rope of the goods from the hook 6; since the position of the hook 6 is random after rotation, there may be a problem that the slide hole 9 and the socket 8 cannot be aligned, by providing a guide bucket 13 at the outer end of the socket 8, if the pin 10 cannot be aligned with the socket 8 when extended, the pin 10 will abut against the inside of the guide bucket 13 and slide along the inclined surface of the guide bucket 13, so that the hook 6 is fine-tuned at a small angle, The latch 10 can be inserted into the socket 8 along the inclined surface of the guide bucket 13, thereby achieving smooth locking of the hook 6; by providing the roller 15, when the end of the latch 10 moves toward the guide bucket 13, the roller 15 can contact the guide bucket 13 and roll on the inclined surface of the guide bucket 13, thereby reducing the friction resistance between the end of the latch 10 and the guide bucket 13, making it easier for the latch 10 to slide into the socket 8, thereby improving the coupling efficiency between the latch 10 and the socket 8; since tower cranes are usually used in construction sites, the construction site environment is complex and dusty, so dust can easily enter the socket 8, resulting in the problem that the latch 10 cannot be smoothly coupled with the socket 8. At this time, by providing the push block 16 and the spring 17, when the latch 10 is close to the socket 8, the latch 10 will push the push block 16 Generates attraction and drives the push block 16 to slide outward, and then the push block 16 pushes the dust inside the socket 8 outward, playing the role of automatic dust cleaning, and then the plug 10 is inserted into the socket 8 and pushes the push block 16 to reset; when the plug 10 is close to the socket 8, the magnetic attraction drives the push block 16 to slide outward, and then negative pressure is generated inside the blind end of the socket 8, and the air between the elastic membrane 18 and the guide bucket 13 is sucked into the blind end of the socket 8 through the hose 21, and then the elastic membrane 18 is close to the side wall of the guide bucket 13, and the connecting rod 19 and the billiard ball 20 knock the side wall of the guide bucket 13, so that the guide bucket 13 vibrates, and then the push block 16 pushes the dust in the socket 8 outward, and the vibration can prevent the dust from adhering to the inside of the guide bucket 13, thereby improving the dust shedding efficiency;By setting the fixed plate 22 and the reed 23, when the elastic membrane 18 drives the connecting rod 19 and the billiard ball 20 to move toward the side wall of the guide bucket 13, the billiard ball 20 first moves between the pair of fixed plates 22 and sequentially activates multiple reeds 23. The reeds 23 continue to swing when they rebound, and drive the guide bucket 13 to further vibrate through the fixed plate 22. Then the billiard ball 20 hits the side wall of the guide bucket 13 again, which can increase the vibration frequency of the guide bucket 13 and further prevent dust from adhering to the inside of the guide bucket 13. In the process of raising or lowering the goods by the sling 3, the sling 3 can drive the wheel 2 to rotate around the fixed shaft 24. By setting the sponge column 25 and the cotton strip 26, the cotton strip 26 transfers the lubricant inside the fixed shaft 24 to the inside of the sponge column 25, and then the top of the sponge column 25 can provide lubricant for the rotation between the wheel 2 and the fixed shaft 24, thereby reducing friction. Improved rotation efficiency; by providing the magnetic blocks 27 and magnetic plates 28, when one of the magnetic blocks 27 rotates above the sponge column 25 during the rotation of the runner 2, it generates an attractive force on the magnetic plate 28, thereby driving the magnetic plate 28 upward and squeezing the sponge column 25, thereby squeezing the lubricant inside the sponge column 25 upward, allowing the lubricant to enter the gap between the runner 2 and the fixed shaft 24, thereby improving lubrication efficiency; by providing the bellows 29, when the magnetic plate 28 moves upward and squeezes the sponge column 25, the bellows 29 can block the sides of the sponge column 25, preventing the lubricant inside the sponge column 25 from overflowing through the sides of the sponge column 25 when squeezed out, thereby improving the efficiency of the lubricant entering the gap between the runner 2 and the fixed shaft 24. Furthermore, after the magnetic block 27 subsequently moves away from the magnetic plate 28, the bellows 29 rebounds and extends, thereby improving the recovery efficiency of the sponge column 25.

[0057] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0058] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0059] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A tower crane lifting hook, characterized by: include: A pair of hollow disks (1) are provided; a rotating wheel (2) is rotatably connected inside the hollow disk (1); a sling (3) is provided outside the rotating wheel (2); A mounting frame (4), the mounting frame (4) being fixedly connected between a pair of hollow disks (1); a mounting block (5) being fixedly connected to the bottom of the mounting frame (4); A hook (6), the top of which passes through the mounting block (5) and is rotatably connected thereto; A fixing ring (7), wherein the fixing ring (7) is fixedly connected to the upper side of the mounting block (5), and the top of the hook (6) is located inside the fixing ring (7); a group of insertion holes (8) are evenly distributed on the inner circumference of the fixing ring (7); A sliding hole (9), the sliding hole (9) is opened at the top of the hook (6); a pair of latches (10) are connected in a sliding and sealing manner inside the two ends of the sliding hole (9); an elastic rope (11) is fixed between the latches (10) and the side wall of the sliding hole (9); An air filling component, the air filling component is used to fill air into the sliding hole (9); A group of guide buckets (13) are evenly distributed on the inner circumference of the fixed ring (7), and the number of the guide buckets (13) and the number of the insertion holes (8) are the same and correspond one to one; the guide buckets (13) are arranged in a trumpet shape, and the end with the smaller diameter of the guide bucket (13) is aligned with the insertion hole (8); adjacent guide buckets (13) are in contact with each other; A push block (16) is slidably connected inside the socket (8); a spring (17) is fixedly connected between the side of the push block (16) away from the guide bucket (13) and the blind end of the socket (8); the latch (10) and the push block (16) are both made of magnetic material, and the latch (10) and the push block (16) attract each other when they are close to each other; A group of elastic membranes (18) are evenly distributed on the outside of the guide bucket (13), and air is stored in the closed cavity formed between the elastic membrane (18) and the guide bucket (13); a billiard ball (20) is fixedly connected to the side of the elastic membrane (18) close to the guide bucket (13) through a connecting rod (19); the push block (16) and the socket (8) are connected in a sliding seal; the closed cavity between the elastic membrane (18) and the guide bucket (13) is connected to the blind end of the socket (8) through a hose (21).

2. A tower crane lifting hook according to claim 1, characterized in that: The inflatable component is an elastic block (12), and the elastic block (12) is fixed to the inner side of the bottom of the hook (6); the elastic block (12) is configured as a hollow structure, and air is stored inside the elastic block (12); the elastic block (12) and the sliding hole (9) are connected to each other through a pipeline.

3. The tower crane lifting hook according to claim 2, characterized in that: One end of the latch (10) away from the elastic rope (11) is fixedly connected to a pair of support plates (14); a roller (15) is rotatably connected between the pair of support plates (14) via a rotating shaft.

4. The tower crane lifting hook according to claim 3, characterized in that: A pair of fixing plates (22) are fixedly connected to the outer side of the guide bucket (13) near the billiard ball (20); and a group of spring plates (23) are fixedly connected to opposite sides of the pair of fixing plates (22).

5. The tower crane lifting hook according to claim 4, characterized in that: A fixed shaft (24) is fixedly connected inside the hollow disk (1), and the rotating wheel (2) is rotatably connected to the outside of the fixed shaft (24); the fixed shaft (24) is configured as a hollow structure, and lubricant is stored inside the fixed shaft (24); a through hole is opened at the top of the fixed shaft (24); a sponge column (25) is fixedly connected inside the through hole; a cotton strip (26) is fixedly connected to the lower end of the sponge column (25), and the lower end of the cotton strip (26) extends to the bottom of the fixed shaft (24).

6. The tower crane lifting hook according to claim 5, characterized in that: A group of magnetic blocks (27) are evenly distributed on the inner circumference of the rotating wheel (2); a magnetic plate (28) is fixed to the lower end of the sponge column (25), and the cotton strip (26) passes through the magnetic plate (28); the magnetic blocks (27) and the magnetic plate (28) attract each other when they are close to each other.

7. The tower crane lifting hook according to claim 6, characterized in that: A bellows (29) is fixedly connected between the magnetic plate (28) and the inner wall of the top of the fixed shaft (24), and the sponge column (25) is located inside the bellows (29); the bellows (29) is made of elastic material.

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