A safety anti-slip device for lifting equipment used in port machinery and equipment

Abstract

The present invention discloses a lifting sling safety anti-slip device for port machinery and equipment, which relates to the technical field of lifting sling anti-slip, and comprises a sleeve, one side of the sleeve is fixedly connected with a hook, and the top of the sleeve is penetrated by a slide groove. The lifting sling safety anti-slip device for port machinery and equipment can drive the first safety plate and the second safety plate to rotate to prevent the cargo lifting lug from slipping through the self-weight of the cargo, and can automatically unlock when the cargo reaches the designated position, thereby eliminating the need for operators to climb onto the cargo to unhook, thereby ensuring the safety of the device and improving the working efficiency of the device. At the same time, when not lifting and unloading, the first safety plate can be retracted into the second safety plate, thereby reducing the space occupied by the first safety plate and the second safety plate on the hook, making it convenient for operators to control the lifting equipment to quickly connect the hook with the cargo lifting lug, thereby further improving the working efficiency of the device.

Description

Technical Field

[0001] The invention relates to the technical field of anti-dropping of slings, in particular to a safety anti-dropping device for a lifting sling used in port machinery and equipment. Background Art

[0002] A port is a transportation hub located along the sea, river, lake, or reservoir, which has water-land transport equipment and conditions for the safe entry, exit, and berthing of ships. A port is a gathering point and hub for water and land transportation, a distribution center for industrial and agricultural products and foreign trade import and export materials, and a place for ships to berth, load and unload cargo, board and disembark passengers, and replenish supplies. Ports are often equipped with large-scale lifting equipment to facilitate the handling of cargo, so the safe lifting of lifting equipment is of paramount importance in port transportation.

[0003] For example, Chinese patent CN201910560345.5 discloses a safety anti-slip protection mechanism for lifting slings for port machinery and equipment. It can be seen that chains are installed on both sides above the top plate frame, and a hook is installed at the bottom end of the top plate frame through a hinged ear frame. The sling designed in this way can fix the cargo more stably; and a pressure sensor is installed on the hanging rod, a supporting side frame is installed on one side of the hook, an electric push rod is installed below the supporting side frame through the supporting rod, a telescopic rod is installed inside the electric push rod, and a supporting mesh plate is installed on one side of the telescopic rod through a connecting ring. When the pressure sensor senses a sudden decrease in pressure, the electric push rod will be automatically controlled to drive, so that it automatically controls the supporting mesh plate to expand and perform secondary access protection on the cargo, which greatly increases the protection capability of the device and improves the safety of cargo transshipment by port machinery.

[0004] And a welding part transfer sling disclosed in Chinese patent CN202022266892.3 can simultaneously complete the actions of winding up one cable and releasing another cable, and can quickly adjust the posture of the I-rail, and then adjust the aerial posture of the welding part hanging under the I-rail, which is convenient and quick.

[0005] Based on the search of the prior art, it can be known that when the existing lifting equipment uses a hook sling, the end of the safety plate is generally used to abut against the end of the hook to form a closed loop. The rotation range of the safety plate and the part of the hook inside the hook have a large overlap, so that the lifting ear of the cargo will hinder the rotation of the safety plate, preventing the lifting ear from slipping, thereby improving safety. However, in the process of lifting large and high cargo, when the cargo reaches the designated position, the operator is required to climb onto the cargo to unhook it, which not only increases the risk factor for the operator, but also affects work efficiency. Summary of the invention

[0006] The object of the present invention is to provide a safety anti-slip device for lifting slings used in port machinery and equipment to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a safety anti-slip device for lifting slings for port machinery and equipment, comprising a sleeve, one side of the sleeve is fixedly connected with a hook, and a slide groove is penetrated through the top of the sleeve, the inner wall of the slide groove is provided with a fixed block, and both sides of the fixed block are provided with a limiting groove, the inner wall of the limiting groove is provided with a limiting block, and the side of the two limiting blocks away from each other is fixed to the inner wall of the slide groove, the bottom of the fixed block is fixedly connected with a tooth plate, and the two sides of the tooth plate are fitted and slid with the inner wall of the slide groove, and the inner wall of the slide groove is provided with an automatic opening and closing mechanism;

[0008] The automatic opening and closing mechanism includes a first rotating rod, and the two ends of the first rotating rod are rotatably connected to the inner walls of both sides of the slide groove, the outer wall of the first rotating rod is fixedly connected to the first gear, and one side of the first gear is meshed with one side of the toothed plate, the bottom of the first gear is meshed with the second gear, and the inner center of the second gear is fixedly connected to the second rotating rod, the outer wall of the second rotating rod is rotatably connected to the inside of the sleeve, and the outer wall of the second rotating rod is fixedly connected to the first safety plate.

[0009] Preferably, a second insurance plate is provided on the inner wall of the first insurance plate, and the outer wall of the second insurance plate slides in contact with the inner wall of the first insurance plate, through grooves are provided on both sides of the first insurance plate, and connecting rods are fixedly connected to the outer walls of both sides of the second insurance plate.

[0010] Preferably, a connecting wire is fixedly connected to the outer wall of the connecting rod, two ends of the second rotating rod pass through the inner wall of the slide groove and extend to the outside of the sleeve, and two extended ends of the second rotating rod are fixedly connected to the wire drum, and the other end of the connecting wire is fixedly connected to the inner wall of the wire drum.

[0011] Preferably, a compression spring is fixedly connected to the top of the second safety plate, and the other end of the compression spring is fixedly connected to the inner wall of the first safety plate, a reinforcement component is provided on the outer wall of the extended end of the second rotating rod, and reinforcement strips are fixedly connected to the outer walls on both sides of the second safety plate corresponding to the reinforcement components.

[0012] Preferably, the outer wall of the fixing block is fitted and slid with the inner wall of the sliding groove, and the outer wall of the limiting block is fitted and slid with the inner wall of the limiting groove.

[0013] Preferably, the top of the fixing block is fixedly connected to a hanging seat, and the inner wall of the hanging seat is provided with a hinge shaft, the top of the limiting block is fixedly connected to a tension spring, and the other end of the tension spring is fixedly connected to the bottom of the hanging seat.

[0014] Preferably, the reinforcement assembly includes a first connecting gear, the inner centers of two of the first connecting gears are fixedly connected to the outer wall of the extended end of the second rotating rod, and one side of the first connecting gear is meshed with the second connecting gear.

[0015] Preferably, a rotating column is rotatably connected inside the second connecting gear, and the adjacent ends of the two rotating columns are fixedly connected to the outer walls of both sides of the sleeve.

[0016] Preferably, a push rod is provided on one side of the second connecting gear, and gear teeth are equidistantly provided on the side of the push rod facing the second connecting gear, and the push rod is meshed with the second connecting gear through the gear teeth.

[0017] Preferably, the push rod is fixedly connected with a block on one side of the sleeve, and a supporting shell is provided on the outer wall of the block, the supporting shell is provided with a slot corresponding to the block, and the block is T-shaped, the outer wall of the block fits and slides with the inner wall of the slot, and one side outer wall of the supporting shell is fixedly connected to one side outer wall of the sleeve.

[0018] Compared with the prior art, the beneficial effects of the present invention are: a safety anti-slip device for lifting slings used in port machinery and equipment;

[0019] 1. Through the setting of the automatic opening and closing mechanism, during the use of the lifting and sling safety anti-detachment device for the port machinery and equipment, when the hook is connected with the cargo lifting lug, the first safety plate and the second safety plate can be automatically driven by the weight of the cargo to rotate and lock, so as to prevent the cargo lifting lug from detaching. At the same time, when the cargo arrives at the designated position, it can be automatically unlocked, and there is no need for the operator to climb onto the cargo to unhook, thus avoiding the possibility of danger to the operator, ensuring the safety of the device and thus improving the working efficiency of the device. At the same time, when there is no lifting and unloading, the first safety plate can be retracted into the second safety plate, thereby reducing the space occupied by the first safety plate and the second safety plate on the hook, making it convenient for the operator to control the lifting equipment to quickly connect the hook with the cargo lifting lug, thereby further improving the working efficiency of the device.

[0020] 2. Through the setting of the reinforcement component, during the use of the lifting and sling safety anti-slip device for the port machinery and equipment, when the first safety plate and the second safety plate are automatically driven to rotate and lock by the weight of the goods themselves, the first connecting gear can synchronously drive the resistance rod to move, so that the second safety plate can be reinforced when it contacts the hook, thereby ensuring the stability of the device during the lifting process, and further ensuring the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the overall unlocking state of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the overall locking state of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure inside the sleeve frame of the present invention;

[0024] Figure 4 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the automatic opening and closing mechanism of the present invention;

[0026] Figure 6 It is a schematic structural diagram of the reinforcement component of the present invention.

[0027] In the figure: 1. sleeve frame; 2. hook; 3. slide groove; 4. fixing block; 5. limit groove; 6. limit block; 7. tooth plate; 9. suspension seat; 10. hinge shaft; 11. tension spring; 8. automatic opening and closing mechanism; 801. first rotating rod; 802. first gear; 803. second gear; 804. second rotating rod; 805. first safety plate; 806. second safety plate; 807. through groove; 808. connecting rod; 809. wire drum; 810. connecting wire; 811. compression spring; 812. reinforcement strip; 12. reinforcement assembly; 1201. first connecting gear; 1202. second connecting gear; 1203. rotating column; 1204. push rod; 1205. block; 1206. supporting shell; 1207. slot. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1:

[0030] See also Figure 1-6The present invention provides a technical solution: a safety anti-slip device for lifting slings for port machinery and equipment, comprising a sleeve 1, a hook 2 is fixedly connected to one side of the sleeve 1, and a slide groove 3 is penetrated through the top of the sleeve 1, and a fixed block 4 is arranged on the inner wall of the slide groove 3, and then a limiting groove 5 is arranged on both sides of the fixed block 4, and a limiting block 6 is arranged on the inner wall of the limiting groove 5, and the side away from the two limiting blocks 6 is fixed to the inner wall of the slide groove 3, and then the bottom of the fixed block 4 is fixedly connected to a toothed plate 7, and the two sides of the tooth plate 7 are fitted and slid with the inner wall of the slide groove 3, and the inner wall of the slide groove 3 is provided with an automatic opening and closing mechanism 8, then the outer wall of the fixed block 4 is fitted and slid with the inner wall of the slide groove 3, and the outer wall of the limit block 6 is fitted and slid with the inner wall of the limit groove 5, and the top of the fixed block 4 is fixedly connected with a hanging seat 9, and then the inner wall of the hanging seat 9 is provided with a hinge shaft 10, and the top of the limit block 6 is fixedly connected with a tension spring 11, and the other end of the tension spring 11 is fixedly connected to the bottom of the hanging seat 9;

[0031] The automatic opening and closing mechanism 8 further comprises a first rotating rod 801, and the two ends of the first rotating rod 801 are rotatably connected to the inner walls of both sides of the slide groove 3, and the outer wall of the first rotating rod 801 is fixedly connected to the first gear 802, then one side of the first gear 802 is meshed with one side of the toothed plate 7, and the bottom of the first gear 802 is meshed with the second gear 803, and the inner center of the second gear 803 is fixedly connected to the second rotating rod 804, then the outer wall of the second rotating rod 804 is rotatably connected to the inside of the sleeve frame 1, and the outer wall of the second rotating rod 804 is fixedly connected to the first safety plate 805, and the inner wall of the first safety plate 805 is provided with the second safety plate 806, and then the outer wall of the second safety plate 806 is engaged. The wall fits and slides with the inner wall of the first insurance plate 805, and through grooves 807 are opened on both sides of the first insurance plate 805, and the outer walls of both sides of the second insurance plate 806 are fixedly connected with connecting rods 808, and then the outer wall of the connecting rod 808 is fixedly connected with a connecting line 810, and the two ends of the second rotating rod 804 pass through the inner wall of the slide groove 3 and extend to the outside of the sleeve frame 1, and the two extended ends of the second rotating rod 804 are fixedly connected with a wire drum 809, and then the other end of the connecting line 810 is fixedly connected to the inner wall of the wire drum 809, and the top of the second insurance plate 806 is fixedly connected with a compression spring 811, and the other end of the compression spring 811 is fixedly connected to the inner wall of the first insurance plate 805;

[0032] More specifically, in this embodiment, during the use of the safety anti-slip device for lifting slings of the port machinery and equipment, first, the top of the fixed block 4 is fixedly connected with the hanging seat 9, and the inner wall of the hanging seat 9 is provided with a hinge shaft 10, so as to be connected with the lifting equipment through the hinge shaft 10, and then the outer wall of the limit block 6 and the inner wall of the limit groove 5 are fitted and slid, and the side of the two limit blocks 6 away from each other is fixed to the inner wall of the slide groove 3, so that the sleeve frame 1 can be supported and limited, so that the sleeve frame 1 can slide up and down on the outer wall of the fixed block 4;

[0033] Then, a tension spring 11 is fixedly connected to the top of the limit block 6, and the other end of the tension spring 11 is fixedly connected to the bottom of the hanging seat 9, so that when not hoisted, the position of the sleeve frame 1 can be supported by the tension spring 11, so that the top of the sleeve frame 1 fits with the bottom of the hanging seat 9. When it is necessary to hoist the goods, the operator first controls the hook 2 to connect with the lifting ear of the goods through the hoisting equipment, so that the lifting ear of the goods is located in the hook 2, and then the goods are hoisted. At this time, the hook 2 will be affected by the weight of the goods itself, so that the sleeve frame 1 can be driven by the weight of the goods itself to slide downward until it reaches the lowest direction and is restricted by the limit block 6, while the tension spring 11 is stretched;

[0034] Then, the outer wall of the first rotating rod 801 is fixedly connected with the first gear 802, and one side of the first gear 802 is meshed with one side of the toothed plate 7, and the bottom of the fixed block 4 is fixedly connected with the toothed plate 7, so that when the sleeve 1 slides downward, the first gear 802 is synchronously driven to descend, and then the first gear 802 can be rotated clockwise through the toothed plate 7;

[0035] Then, the second gear 803 is meshed with the bottom of the first gear 802, and the second rotating rod 804 is fixedly connected to the inner center of the second gear 803, and the outer wall of the second rotating rod 804 is rotatably connected to the inside of the sleeve frame 1, so that the second gear 803 can be driven by the first gear 802 to rotate counterclockwise, and then the second rotating rod 804 is synchronously driven to rotate counterclockwise, and then the first insurance plate 805 is fixedly connected to the outer wall of the second rotating rod 804, and the inner wall of the first insurance plate 805 is provided with a second insurance plate 806, and the outer wall of the second insurance plate 806 is fitted and slid with the inner wall of the first insurance plate 805, so that when the sleeve frame 1 slides downward, the first insurance plate 805 and the second insurance plate 806 are synchronously driven to rotate;

[0036] Then, the two ends of the second rotating rod 804 pass through the inner wall of the slide groove 3 and extend to the outside of the sleeve frame 1, and the two extended ends of the second rotating rod 804 are fixedly connected to the wire drum 809, so that when the second rotating rod 804 rotates, it can synchronously drive the wire drum 809 to rotate counterclockwise, and then the connecting rod 808 is fixedly connected to the outer wall of the second safety plate 806 on both sides, and the outer wall of the connecting rod 808 is fixedly connected to the connecting line 810, and the other end of the connecting line 810 is fixedly connected to the inner wall of the wire drum 809, and the top of the second safety plate 806 is fixedly connected A compression spring 811 is connected, and the compression spring 811 is always in a compressed state, thereby continuously squeezing and pushing the second safety plate 806. When the wire drum 809 rotates counterclockwise, the wire release operation will be performed, thereby causing the second safety plate 806 to extend outward. When the sleeve 1 slides downward until it reaches the lowest direction and is restricted by the limit block 6, the first safety plate 805 and the second safety plate 806 rotate synchronously to a suitable angle, and the end of the second safety plate 806 abuts against the end of the hook 2 to form a closed loop, thereby preventing the cargo lifting ear from falling off;

[0037] Then, when the cargo reaches the designated position, the hook 2 is controlled to lower the cargo to contact the ground, so that the force on the hook 2 is gradually reduced until there is no force. At this time, the tension spring 11 starts to rebound and drives the sleeve frame 1 to rise, so that during the rising process, the wire drum 809 rotates clockwise and starts the wire-winding operation, driving the second safety plate 806 to be retracted into the first safety plate 805 again, and the first safety plate 805 and the second safety plate 806 are reset and automatically unlocked by the clockwise rotation of the second rotating rod 804. At this time, the operator controls the hook 2 to move until it is disconnected from the cargo lifting ear;

[0038] The second safety plate 806 is further retracted into the first safety plate 805, thereby reducing the space occupied by the first safety plate 805 and the second safety plate 806 on the hook 2, making it more convenient for the operator to control the connection and disconnection of the hook 2 and the cargo lifting ear, thereby further improving the working efficiency of the device.

[0039] As described above, during the use of the lifting and sling safety anti-detachment device for the port machinery and equipment, when the hook 2 is connected to the cargo lifting ear, the first safety plate 805 and the second safety plate 806 can be automatically driven by the weight of the cargo itself to rotate and lock, so as to prevent the cargo lifting ear from detaching. At the same time, when the cargo reaches the specified position, it can be automatically unlocked, and there is no need for the operator to climb onto the cargo to unhook, thus avoiding the possibility of danger to the operator, ensuring the safety of the device and thus improving the working efficiency of the device. At the same time, when there is no lifting and unloading, the first safety plate 805 can be retracted into the second safety plate 806, thereby reducing the space occupied by the first safety plate 805 and the second safety plate 806 on the hook 2, making it convenient for the operator to control the lifting equipment to quickly connect the hook 2 with the cargo lifting ear, thereby further improving the working efficiency of the device.

[0040] Embodiment 2:

[0041] On the basis of the above embodiment, the outer wall of the extended end of the second rotating rod 804 is provided with a reinforcing component 12, and the outer walls on both sides of the second safety plate 806 are fixedly connected with reinforcing strips 812 corresponding to the reinforcing components 12;

[0042] The reinforcement assembly 12 further includes a first connecting gear 1201, and the inner centers of the two first connecting gears 1201 are fixedly connected to the outer wall of the extended end of the second rotating rod 804, and one side of the first connecting gear 1201 is meshed with a second connecting gear 1202, and then the inner rotation of the second connecting gear 1202 is connected to a rotating column 1203, and the ends of the two rotating columns 1203 that are close to each other are fixedly connected to the outer walls of both sides of the sleeve 1, and a push rod 1204 is provided on one side of the second connecting gear 1202, and then the push rod 1204 is moved toward the second connecting gear 1202. One side of the gear 1202 is provided with gear teeth at equal distances, and the push rod 1204 is meshed with the second connecting gear 1202 through the gear teeth, and a clamping block 1205 is fixedly connected to the side of the push rod 1204 facing the sleeve frame 1, and then a supporting shell 1206 is provided on the outer wall of the clamping block 1205, and the supporting shell 1206 is provided with a clamping groove 1207 corresponding to the clamping block 1205, and the clamping block 1205 is T-shaped, and at the same time, the outer wall of the clamping block 1205 is fitted and slid with the inner wall of the clamping groove 1207, and one side outer wall of the supporting shell 1206 is fixedly connected to one side outer wall of the sleeve frame 1;

[0043] More specifically, in this embodiment, when the second rotating rod 804 is automatically driven to rotate counterclockwise by the weight of the cargo itself, the inner centers of the two first connecting gears 1201 are fixedly connected to the outer wall of the extended end of the second rotating rod 804, so that the two first connecting gears 1201 can be synchronously driven to rotate counterclockwise by the second rotating rod 804, and then the second connecting gear 1202 is meshed with one side of the first connecting gear 1201, so that the second connecting gear 1202 can be synchronously driven to rotate clockwise by the first connecting gear 1201, and then the push rod 1204 is meshed with the second connecting gear 1202 through the gear teeth, and the push rod 1204 is directed toward one side of the sleeve 1. The side is fixedly connected with a clamping block 1205, and the clamping block 1205 is T-shaped. At the same time, the outer wall of the clamping block 1205 fits and slides with the inner wall of the clamping groove 1207, so that the clamping block 1205 and the supporting shell 1206 can limit the support of the push rod 1204, and then the clockwise rotation of the second connecting gear 1202 can drive the bottom of the push rod 1204 to move downward. When the sleeve frame 1 slides downward until it reaches the lowest direction and is restricted by the limit block 6, the bottom of the push rod 1204 contacts the upper surface of the reinforcement strip 812, and then the second safety plate 806 can be reinforced when it contacts the hook 2, thereby ensuring the stability of the device during the lifting process;

[0044] Furthermore, the number of teeth of the first connecting gear 1201 is greater than the number of teeth of the second connecting gear 1202, so that the second connecting gear 1202 can be driven to rotate a greater number of circles by a small rotation angle of the second rotating rod 804;

[0045] As described above, during the use of the lifting and sling safety anti-slip device for the port machinery and equipment, when the first safety plate 805 and the second safety plate 806 are automatically driven to rotate and lock by the weight of the cargo itself, the first connecting gear 1201 can synchronously drive the support rod 1204 to move, so that the second safety plate 806 can be reinforced when it contacts the hook 2, thereby ensuring the stability of the device during the lifting process, and further ensuring the safety of the device.

[0046] Working principle: When using the lifting and sling safety anti-slip device for port machinery and equipment, first connect it with the lifting equipment through the hinge shaft 10. Then, when the cargo needs to be lifted, the operator first controls the hook 2 to connect with the cargo lifting lug through the lifting equipment, so that the cargo lifting lug is located in the hook 2. At this time, the cargo is lifted. At this time, the hook 2 will be affected by the weight of the cargo itself, so that the frame 1 can be driven to slide downward by the weight of the cargo itself, so that the second rotating rod 804 rotates counterclockwise, thereby synchronously driving the first safety plate 805 and the second safety plate 806 to rotate;

[0047] Then the compression spring 811 continuously squeezes and pushes the second safety plate 806. When the second rotating rod 804 rotates counterclockwise, the wire drum 809 is synchronously driven to release the wire, so that the second safety plate 806 extends outward. When the sleeve 1 slides downward until it reaches the lowest direction and is restricted by the limit block 6, the first safety plate 805 and the second safety plate 806 are synchronously rotated to a suitable angle, and the end of the second safety plate 806 contacts the end of the hook 2 to form a closed loop, so as to prevent the cargo lifting ear from falling off.

[0048] Then, when the second rotating rod 804 is automatically driven to rotate counterclockwise by the weight of the cargo itself, the bottom of the push rod 1204 is driven to move downward by the clockwise rotation of the second connecting gear 1202. When the sleeve 1 slides downward until it reaches the lowest direction and is restricted by the limit block 6, the bottom of the push rod 1204 contacts the upper surface of the reinforcement strip 812, thereby reinforcing the second safety plate 806 when it contacts the hook 2, thereby ensuring the stability of the device during the lifting process.

[0049] Then, when the cargo reaches the designated position, the hook 2 is controlled to lower the cargo to contact the ground, so that the force on the hook 2 is gradually reduced until there is no force. At this time, the tension spring 11 begins to rebound and drives the sleeve 1 to rise, so that the second safety plate 806 is retracted into the first safety plate 805, and the first safety plate 805 and the second safety plate 806 are reset through the clockwise rotation of the second rotating rod 804. At the same time, the push rod 1204 is automatically reset to its original position, and automatic unlocking is completed. At this time, the operator controls the hook 2 to move until it is disconnected from the cargo lifting ear.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety anti-slip device for lifting equipment used in port machinery and equipment, comprising a sleeve frame (1), characterized in that: A hook (2) is fixedly connected to one side of the sleeve (1), and a slide groove (3) is provided through the top of the sleeve (1), a fixing block (4) is provided on the inner wall of the slide groove (3), and limiting grooves (5) are provided on both sides of the fixing block (4), and limiting blocks (6) are provided on the inner wall of the limiting groove (5), and the two sides of the two limiting blocks (6) are fixed to the inner wall of the slide groove (3); The bottom of the fixed block (4) is fixedly connected with a tooth plate (7), and two sides of the tooth plate (7) slide in contact with the inner wall of the slide groove (3), and the inner wall of the slide groove (3) is provided with an automatic opening and closing mechanism (8); The automatic opening and closing mechanism (8) comprises a first rotating rod (801), and the two ends of the first rotating rod (801) are rotatably connected to the inner walls of the sliding groove (3) on both sides; The outer wall of the first rotating rod (801) is fixedly connected to a first gear (802), and one side of the first gear (802) is meshed with one side of the toothed plate (7); the bottom of the first gear (802) is meshed with a second gear (803), and the inner center of the second gear (803) is fixedly connected to a second rotating rod (804); the outer wall of the second rotating rod (804) is rotatably connected to the inside of the sleeve frame (1), and the outer wall of the second rotating rod (804) is fixedly connected to a first safety plate (805); the inner wall of the first safety plate (805) is A second safety plate (806) is provided, and the outer wall of the second safety plate (806) is fitted and slid with the inner wall of the first safety plate (805), through grooves (807) are provided on both sides of the first safety plate (805), and the outer walls of both sides of the second safety plate (806) are fixedly connected with connecting rods (808); the outer wall of the connecting rod (808) is fixedly connected with a connecting line (810), and the two ends of the second rotating rod (804) pass through the inner wall of the slide groove (3) and extend to the outside of the sleeve (1), and the two extensions of the second rotating rod (804) are fixedly connected to the outer wall of the slide groove (3). The second end of the connecting wire (810) is fixedly connected to the inner wall of the wire drum (809); the top of the second safety plate (806) is fixedly connected to a compression spring (811), and the other end of the compression spring (811) is fixedly connected to the inner wall of the first safety plate (805); the outer wall of the extended end of the second rotating rod (804) is provided with a reinforcement component (12), and the outer walls on both sides of the second safety plate (806) are fixedly connected to reinforcement strips (812) corresponding to the reinforcement components (12); the fixing block The top of the (4) is fixedly connected to a hanging seat (9), and the inner wall of the hanging seat (9) is provided with a hinge shaft (10), the top of the limit block (6) is fixedly connected to a tension spring (11), and the other end of the tension spring (11) is fixedly connected to the bottom of the hanging seat (9); the reinforcement component (12) includes a first connecting gear (1201), the inner centers of the two first connecting gears (1201) are fixedly connected to the outer wall of the extended end of the second rotating rod (804), and one side of the first connecting gear (1201) is meshed with a second connecting gear (1202).

2. A safety anti-slip device for lifting equipment for port machinery and equipment according to claim 1, characterized in that: The second connecting gear (1202) is internally rotatably connected to a rotating column (1203), and the adjacent ends of the two rotating columns (1203) are fixedly connected to the outer walls of both sides of the sleeve frame (1).

3. The safety anti-slip device for lifting equipment used in port machinery and equipment according to claim 1 is characterized in that: The outer wall of the fixing block (4) fits and slides with the inner wall of the sliding groove (3), and the outer wall of the limiting block (6) fits and slides with the inner wall of the limiting groove (5).

4. The safety anti-slip device for lifting equipment used in port machinery and equipment according to claim 1 is characterized in that: A push rod (1204) is provided on one side of the second connecting gear (1202), and gear teeth are provided at equal distances on a side of the push rod (1204) facing the second connecting gear (1202).

5. A safety anti-slip device for lifting equipment for port machinery and equipment according to claim 4, characterized in that: The stop rod (1204) is meshed with the second connecting gear (1202) via gear teeth.

6. A safety anti-slip device for lifting equipment for port machinery and equipment according to claim 5, characterized in that: A clamping block (1205) is fixedly connected to the side of the support rod (1204) facing the sleeve frame (1), and a supporting shell (1206) is provided on the outer wall of the clamping block (1205).

7. A safety anti-drop device for lifting equipment for port machinery and equipment according to claim 6, characterized in that: The support shell (1206) is provided with a slot (1207) corresponding to the block (1205), and the block (1205) is T-shaped, the outer wall of the block (1205) slides in contact with the inner wall of the slot (1207), and one side outer wall of the support shell (1206) is fixedly connected to one side outer wall of the sleeve frame (1).

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