Limiting device for lifting rope of crane

Abstract

The utility model discloses a crane lifting rope limiting device in the technical field of crane lifting hooks, which comprises an anti-falling mechanism, the anti-falling mechanism comprises a hook, the hook comprises a connecting end and a hook body, the tail end of the hook body is fixedly connected with the lower end of the connecting end, an assembly groove is formed in the hook in a penetrating manner, a winding disc is rotatably arranged in the assembly groove, and the winding disc is fixedly connected with the hook body. A rotating shaft is movably inserted into the winding disc, the two ends of the rotating shaft are sleeved with anti-disengaging pieces, the head end of the hook body is fixedly connected with a limiting block, and the ends, away from the rotating shaft, of the anti-disengaging pieces abut against the limiting block. The limiting mechanism comprises a torsional spring arranged on the winding disc in a sleeving manner; during use, when the torsion spring drives the winding disc and the anti-disengaging piece to deflect upwards, a steel cable is unwound, at the moment, the limiting piece loses tension, meanwhile, the limiting piece is pushed to move upwards through the first spring, at the moment, the lifting rope is conveniently limited through the limiting piece, the possibility that the lifting rope continuously shakes in the hook body is reduced, and the lifting rope is more convenient to limit.

Description

Technical Field

[0001] The utility model relates to the technical field of crane hooks, in particular to a crane rope limiting device. Background Art

[0002] A crane is a multi-action lifting machine used for vertically lifting and horizontally transporting heavy objects within a certain range. Also known as an overhead crane, overhead crane, hoist, or hook, it is the most common type of lifting device. The hook is often suspended from the wire rope of the lifting mechanism using components such as pulleys. When lifting cargo, the connecting rope of the crane hook can slip on the hook. This slippage can increase the sway of the cargo, thereby reducing the hook's stability.

[0003] The existing patent (Announcement No.: CN214087328U) discloses a crane hook adjustment device, which relates to the technical field of crane hooks. It includes a connecting block, on which a hook body is rotatably mounted, an anti-drop rod is hinged on the hook body, and a No. 1 torsion spring is provided on the anti-drop rod, and the two ends of the No. 1 torsion spring are respectively fixed to the anti-drop rod and the hook body, and a positioning assembly is provided on the hook body. By providing a positioning assembly on the hook body, the limiting groove can limit the connecting rope to the inside of the limiting groove through the limiting groove, thereby preventing the connecting rope from sliding on the hook body. However, this technical solution still has shortcomings, as follows:

[0004] When using this device, the rope must be placed inside the hook first, and then the operator needs to manually open the locking assembly to limit the rope, which makes it difficult to limit the rope. To this end, we propose a crane rope limiting device to solve the above-mentioned problem. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the present invention to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] Therefore, the purpose of the present invention is to provide a crane rope limiting device, which can solve the problem that the existing device needs to put the rope into the hook first when in use, and then the operator needs to manually open the locking component to limit the rope, so the rope is more troublesome when limiting.

[0007] In order to solve the above technical problems, the utility model provides a crane rope limiting device, which adopts the following technical solutions: comprising an anti-slip mechanism, which includes a hook, the hook includes a connecting end and a hook body, the tail end of the hook body is fixedly connected to the lower end of the connecting end, an assembly groove is penetrated through the hook, a winding disk is rotatably arranged in the assembly groove, a rotating shaft is movably inserted in the winding disk, and anti-slip parts are sleeved on both ends of the rotating shaft, the head end of the hook body is fixedly connected to the limiting block, and the end of the anti-slip part away from the rotating shaft abuts against the limiting block;

[0008] The limiting mechanism includes a torsion spring sleeved on the winding disk, the winding disk is connected to the assembly slot through the torsion spring, the inner wall of the hook body is provided with a slide groove, the inner wall of the slide groove is movably provided with a limiting member, the upper end of the limiting member passes through the slide groove upward, the lower end of the limiting member is connected to the bottom of the inner wall of the slide groove by setting a first spring, a steel cable is wound around the winding disk, the end of the steel cable away from the winding disk passes through the hook body and is inserted into the slide groove and fixedly connected to the bottom of the limiting member.

[0009] By adopting the above technical solution, when the torsion spring drives the reel and the anti-slip part to deflect upward, the steel cable is unwound. At this time, the limiting part loses the tension, and at the same time, the limiting part is pushed upward by the first spring. At this time, the limiting part facilitates the limitation of the lifting rope and reduces the possibility of the lifting rope shaking continuously in the hook body.

[0010] Optionally, the winding reel includes a first circular tube, which is rotatably inserted in the assembly groove, and a circular ring is fixedly sleeved on the outer wall of the first circular tube. The end of the steel cable away from the limit member is wrapped around the circular ring, and the torsion spring is sleeved on the first circular tube, one end of the torsion spring is fixedly connected to the first circular tube, and the other end of the torsion spring is fixedly connected to the inner wall of the assembly groove, and a plurality of first semi-cylinders are distributed along the circumference of the inner wall of the first circular tube.

[0011] By adopting the above technical solution, the present solution facilitates the winding and unwinding of the steel cable through the circular ring, and then facilitates the movement of the limiter by pulling the steel cable. When the operator rotates the anti-slip part, the deflection causes the hook body to open, and causes the torsion spring to twist and deform, thereby facilitating the operator to place the sling into the hook body.

[0012] Optionally, the outer wall of the rotating shaft is provided with a number of semicircular grooves corresponding to the number of the first semi-cylinders, and the first semi-cylinders are slidably arranged in the semicircular grooves.

[0013] By adopting the above technical solution, the semicircular groove cooperates with the first semi-cylinder to enable the anti-slip component to drive the first circular tube and the circular ring to rotate synchronously when the rotating shaft is rotated.

[0014] Optionally, the anti-slip component includes two connecting plates and a round rod, one end of the two connecting plates is fixedly connected to a second round tube, the inner wall of the second round tube is provided with a plurality of second semi-cylinders distributed along the circumference, the second semi-cylinders are slidably arranged in the semi-circular groove, the other ends of the two connecting plates are connected by the round rod to form a U-shaped structure, and the outer wall of the round rod abuts against the limit block.

[0015] By adopting the above technical solution, the anti-slip part of this solution is assembled at both ends of the rotating shaft through two second circular tubes, and the second semi-cylinder cooperates with the semi-circular groove to enable the anti-slip part to drive the rotating shaft and the winding reel to rotate synchronously when rotating, and the hook body is closed by the anti-slip part.

[0016] Optionally, a slot is provided at one end of the rotating shaft, and a resistance rod is movably inserted into the inner wall of the slot, and the outer wall of the other end of the rotating shaft is provided with through holes distributed along the circumference, and positioning rods are movably provided in several of the through holes, and the positioning rod is inserted into the slot toward one end of the slot and abuts against the resistance rod, a second spring is fixedly sleeved on the outer wall of the positioning rod and is fixedly connected to the inner wall of the through hole through the second spring, and the end of the resistance rod inserted into the slot is fixedly connected to a third spring and is fixedly connected to the inner wall of the slot through the third spring.

[0017] By adopting the above technical solution, when the interference rod collides with the positioning rod, the positioning rod extends from the through hole and assembles the anti-slip part on the rotating shaft. When the operator presses the interference rod, it separates from the positioning rod. At this time, the positioning rod is pushed to move and be accommodated in the slot by the second spring, thereby causing the anti-slip part to lose its limit and making it easier for the operator to pull the rotating shaft out of the assembly groove.

[0018] Optionally, a pull ring is fixedly connected to one end of the rotating shaft away from the positioning rod, and the shape of the interference rod is a "convex" shape.

[0019] By adopting the above technical solution, the present solution facilitates the operator to pull the rotating shaft to move through the pull ring, thereby facilitating the rotation shaft to be drawn out from the assembly groove, and further facilitating the operator to replace the anti-slip component.

[0020] Optionally, the limiting member includes two vertical plates and a horizontal plate, the horizontal plate is movably arranged in the slide groove, the two vertical plates are movably inserted into the inner side of the hook body, the two vertical plates pass through the hook body and are inserted into the slide groove and fixedly connected to the horizontal plate, and the end of the steel cable away from the winding disk is fixedly connected to the bottom of the horizontal plate.

[0021] By adopting the above technical solution, when the steel cable pulls the horizontal plate downward, the rope inside the hook body loses its limit. When the horizontal plate loses its downward pulling force, the first spring facilitates the upward push of the horizontal plate and the vertical plate. At this time, the position of the rope is conveniently limited by the two vertical plates.

[0022] Optionally, there are several first springs, the upper ends of several first springs are fixedly connected to the bottom of the transverse plate, and the lower ends of several first springs are fixedly connected to the bottom surface of the inner wall of the slide groove.

[0023] By adopting the above technical solution, when the horizontal plate loses its downward pulling force, the cooperation of the first springs facilitates pushing the horizontal plate and the two vertical plates upward, thereby limiting the suspension rope through the two vertical plates.

[0024] In summary, the present invention has at least one of the following beneficial effects:

[0025] 1. When the torsion spring drives the reel and the anti-slip part to deflect upward, the steel cable is unwound. At this time, the limiter loses its tension and is pushed upward by the first spring. At this time, the limiter is convenient for limiting the position of the rope, reducing the possibility of the rope shaking continuously in the hook body, and making it more convenient to limit the rope;

[0026] 2. When the operator presses the resistance rod, it separates from the positioning rod. At this time, the positioning rod is pushed by the second spring to move and be stored in the slot, thereby causing the anti-slip component to lose its limit and making it easier for the operator to pull the shaft out of the assembly slot, thereby making it easier for the operator to replace the anti-slip component. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0029] Figure 2 This is a schematic diagram of a partial three-dimensional expanded structure of the utility model;

[0030] Figure 3 It is a partial three-dimensional expanded structural cross-sectional view of the utility model;

[0031] Figure 4 It is a partial three-dimensional expanded structural cross-sectional view of the rotating shaft of the utility model.

[0032] DESCRIPTION OF NUMERALS AND SIGNS: 100, anti-slip mechanism; 101, hook; 101a, connecting end; 101b, hook body; 102, assembly groove; 103, reel; 103a, first circular tube; 103b, circular ring; 103c, first semi-circular cylinder; 104, rotating shaft; 104a, semi-circular groove; 104b, slot; 104c, interference rod; 104d, through hole; 104e, positioning rod; 104f, second spring; 104g, third spring; 104h, pull ring; 105, anti-slip member; 105a, connecting plate; 105b, circular rod; 105c, second circular tube; 105d, second semi-circular cylinder; 106, limit block;

[0033] 200, limiting mechanism; 201, torsion spring; 202, slide; 203, limiting member; 203a, vertical plate; 203b, horizontal plate; 204, first spring; 205, steel cable. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-4 The utility model is described in further detail.

[0035] Example 1, refer to Figure 1-4 In this embodiment, in order to solve the problem that the existing device needs to put the lifting rope into the hook first when in use, and then the operator needs to manually open the locking component to limit the lifting rope, which makes it more troublesome to limit the lifting rope, the utility model discloses a lifting rope limiting device for a crane.

[0036] It includes an anti-slip mechanism 100, which includes a hook 101. The hook 101 includes a connecting end 101a and a hook body 101b. The tail end of the hook body 101b is fixedly connected to the lower end of the connecting end 101a. An assembly groove 102 is opened through the hook 101. A winding disk 103 is rotatably arranged in the assembly groove 102. The winding disk 103 is assembled in the assembly groove 102.

[0037] A rotating shaft 104 is movably inserted in the winding disk 103, and anti-slip parts 105 are provided at both ends of the rotating shaft 104. The head end of the hook body 101b is fixedly connected to the limiting block 106, and the end of the anti-slip part 105 away from the rotating shaft 104 abuts against the limiting block 106. When the anti-slip part 105 abuts against the limiting block 106, the hook body 101b is prompted to close, thereby reducing the possibility of the lifting rope falling off from the hook body 101b.

[0038] The limiting mechanism 200 includes a torsion spring 201 mounted on the winding disk 103. The winding disk 103 is connected to the assembly groove 102 through the torsion spring 201. A sliding groove 202 is provided on the inner wall of the hook body 101b. A limiting member 203 is movably provided on the inner wall of the sliding groove 202. The upper end of the limiting member 203 passes through the sliding groove 202 upward, and the limiting member 203 is assembled in the sliding groove 202.

[0039] When the cross plate 203b loses the downward pulling force, the first spring 204 facilitates the horizontal plate 203b and the vertical plate 203a to move up. At this time, the position of the suspension rope is easily limited by the two vertical plates 203a, thereby reducing the possibility of the suspension rope constantly shaking.

[0040] There are several first springs 204, the upper ends of several first springs 204 are fixedly connected to the bottom of the horizontal plate 203b, and the lower ends of several first springs 204 are fixedly connected to the bottom surface of the inner wall of the slide groove 202. When the horizontal plate 203b loses the downward pulling force, the cooperation of several first springs 204 facilitates the pushing of the horizontal plate 203b and the two vertical plates 203a upward, thereby limiting the suspension rope through the two vertical plates 203a.

[0041] A steel cable 205 is wound around the winding drum 103. The end of the steel cable 205 away from the winding drum 103 passes through the hook body 101b and is inserted into the slide groove 202 and fixedly connected to the bottom of the limiting member 203. When the torsion spring 201 drives the winding drum 103 and the anti-slip member 105 to deflect upward, the steel cable 205 is unwound. At this time, the limiting member 203 loses its tension and is pushed upward by the first spring 204. At this time, the limiting member 203 is used to limit the lifting rope.

[0042] The specific working principle is: when the torsion spring 201 drives the reel 103 and the anti-slip member 105 to deflect downward, the steel cable 205 is reeled, and at this time the limit member 203 is pulled downward by the steel cable 205 and the suspension rope is released from the limit, and at this time the first spring 204 is compressed and deformed;

[0043] When the torsion spring 201 drives the winding disc 103 and the anti-slip component 105 to deflect upward, the steel cable 205 is unwound. At this time, the limiting component 203 loses its tension, and at the same time, the limiting component 203 is pushed upward by the first spring 204. At this time, the limiting component 203 is used to limit the lifting rope, reducing the possibility of the lifting rope constantly shaking in the hook body 101b, and it is more convenient to limit the lifting rope.

[0044] Example 2, refer to Figure 1-3In order to solve the problem that some existing hooks lack a limiting mechanism and thus the lifting rope is easily separated from the hook, based on the same concept as the above-mentioned embodiment 1, the crane lifting rope limiting device further includes:

[0045] The winding disk 103 includes a first circular tube 103a, which is rotatably inserted into the assembly groove 102. The outer wall of the first circular tube 103a is fixedly sleeved with a circular ring 103b. The end of the steel cable 205 away from the limiter 203 is wound around the circular ring 103b. The torsion spring 201 is sleeved on the first circular tube 103a. One end of the torsion spring 201 is fixedly connected to the first circular tube 103a, and the other end of the torsion spring 201 is fixedly connected to the inner wall of the assembly groove 102. The inner wall of the first circular tube 103a is distributed along the circumference with a plurality of first semi-cylindrical 103c, the circular ring 103b facilitates the winding and unwinding of the steel cable 205, and then the steel cable 205 facilitates the pulling of the limit piece 203 to move. When the operator rotates the anti-slip part 105 to deflect the hook body 101b, and causes the torsion spring 201 to twist and deform, so that the operator can put the sling into the hook body 101b and then release the anti-slip part 105. At this time, the anti-slip part 105 loses its thrust, and at the same time, the torsion spring 201 restores the deformation and pushes the anti-slip part 105 to return to its original position and abut against the limit block 106, thereby causing the hook body 101b to close.

[0046] The outer wall of the rotating shaft 104 is provided with a number of semicircular grooves 104a corresponding to the number of the first semi-cylinder 103c. The first semi-cylinder 103c is slidably set in the semicircular grooves 104a. The semicircular grooves 104a cooperate with the first semi-cylinder 103c to drive the anti-slip component 105 to drive the first circular tube 103a and the circular ring 103b to rotate synchronously when the rotating shaft 104 rotates, and then the circular ring 103b is used to facilitate the winding and unwinding of the steel cable 205.

[0047] The anti-slip component 105 includes two connecting plates 105a and a round rod 105b, one end of the two connecting plates 105a is fixedly connected to a second round tube 105c, and a plurality of second semi-cylinders 105d are distributed along the circumference on the inner wall of the second round tube 105c. The second semi-cylinder 105d is slidably set in the semi-circular groove 104a, and the other ends of the two connecting plates 105a are connected by the round rod 105b to form a U-shaped structure. The outer wall of the round rod 105b abuts against the limit block 106. The anti-slip component 105 is assembled at both ends of the rotating shaft 104 through the two second round tubes 105c, and the second semi-cylinder 105d cooperates with the semi-circular groove 104a to enable the anti-slip component 105 to rotate, thereby driving the rotating shaft 104 and the winding disk 103 to rotate synchronously, and the hook body 101b is closed by the anti-slip component 105, thereby reducing the possibility of separation of the lifting rope and the hook body 101b.

[0048] The specific working principle is: first, the rotating anti-slip component 105 is deflected to cause the hook body 101b to open, and the torsion spring 201 is twisted and deformed, so that the operator can put the lifting rope into the hook body 101b, and then the anti-slip component 105 is released. At this time, the anti-slip component 105 loses its thrust, and at the same time, the torsion spring 201 restores the deformation and pushes the anti-slip component 105 to return to its original position and abut against the limit block 106, thereby causing the hook body 101b to close, thereby reducing the possibility of the lifting rope falling off from the hook body 101b.

[0049] Example 3, refer to Figure 4 In order to solve the problem that it is troublesome to disassemble some existing hooks, in this embodiment, based on the same concept as the above-mentioned embodiment 1, the crane rope limiting device further includes:

[0050] A slot 104b is provided at one end of the rotating shaft 104, and a resisting rod 104c is movably inserted into the inner wall of the slot 104b. A through-hole 104d is provided on the outer wall of the other end of the rotating shaft 104 along the circumference. Positioning rods 104e are movably provided in the plurality of through-holes 104d. The positioning rod 104e is inserted into the slot 104b at one end thereof and abuts against the resisting rod 104c. A second spring 104f is fixedly sleeved on the outer wall of the positioning rod 104e and fixedly connected to the inner wall of the through-hole 104d through the second spring 104f. The end of the resisting rod 104c inserted into the slot 104b is fixedly connected to a third spring 104g and fixedly connected to the inner wall of the slot 104b through the third spring 104g. Fixedly connected, the interference rod 104c is assembled in the slot 104b through the third spring 104g, and the positioning rod 104e is assembled in the through hole 104d through the second spring 104f. When the interference rod 104c conflicts with the positioning rod 104e, the positioning rod 104e extends from the through hole 104d and assembles the anti-slip component 105 on the rotating shaft 104. When the operator presses the interference rod 104c, it is separated from the positioning rod 104e. At this time, the positioning rod 104e is pushed by the second spring 104f to move and be accommodated in the slot 104b, thereby causing the anti-slip component 105 to lose its limit and making it easier for the operator to pull the rotating shaft 104 out of the assembly groove 102, thereby making it easier for the operator to replace the anti-slip component 105.

[0051] The end of the rotating shaft 104 away from the positioning rod 104e is fixedly connected to a pull ring 104h, and the shape of the resistance rod 104c is a "convex" shape. The pull ring 104h makes it easy for the operator to pull the rotating shaft 104 to move, thereby facilitating the extraction of the rotating shaft 104 from the assembly groove 102, and further facilitating the replacement of the anti-slip component 105 by the operator.

[0052] The specific working principle is: when the operator presses the resistance rod 104c, it separates from the positioning rod 104e. At this time, the second spring 104f pushes the positioning rod 104e to move and be stored in the slot 104b, thereby causing the anti-slip component 105 to lose its limit and making it easier for the operator to pull the rotating shaft 104 out of the assembly groove 102, thereby making it easier for the operator to disassemble and replace the anti-slip component 105.

[0053] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A crane rope limiting device, characterized in that: include, An anti-slip mechanism (100) comprises a hook (101), wherein the hook (101) comprises a connecting end (101a) and a hook body (101b), wherein the tail end of the hook body (101b) is fixedly connected to the lower end of the connecting end (101a), an assembly groove (102) is provided through the hook (101), a winding disk (103) is rotatably provided in the assembly groove (102), a rotating shaft (104) is movably inserted in the winding disk (103), anti-slip components (105) are sleeved on both ends of the rotating shaft (104), a head end of the hook body (101b) is fixedly connected to a limiting block (106), and an end of the anti-slip component (105) away from the rotating shaft (104) abuts against the limiting block (106); The limiting mechanism (200) includes a torsion spring (201) sleeved on the winding disk (103), the winding disk (103) is connected to the assembly groove (102) through the torsion spring (201), the inner wall of the hook body (101b) is provided with a sliding groove (202), the inner wall of the sliding groove (202) is movably provided with a limiting member (203), the upper end of the limiting member (203) passes through the sliding groove (202) upward, the lower end of the limiting member (203) is connected to the bottom of the inner wall of the sliding groove (202) by providing a first spring (204), a steel cable (205) is wound around the winding disk (103), the end of the steel cable (205) away from the winding disk (103) passes through the hook body (101b) and is inserted into the sliding groove (202) and fixedly connected to the bottom of the limiting member (203).

2. The crane rope limiting device according to claim 1, characterized in that: The winding disk (103) includes a first circular tube (103a), the first circular tube (103a) is rotatably inserted into the assembly groove (102), the outer wall of the first circular tube (103a) is fixedly sleeved with a circular ring (103b), the end of the steel cable (205) away from the limiting member (203) is wound around the circular ring (103b), the torsion spring (201) is sleeved on the first circular tube (103a), one end of the torsion spring (201) is fixedly connected to the first circular tube (103a), and the other end of the torsion spring (201) is fixedly connected to the inner wall of the assembly groove (102), and the inner wall of the first circular tube (103a) is provided with a plurality of first semi-cylinders (103c) distributed along the circumference.

3. The crane rope limiting device according to claim 2, characterized in that: The outer wall of the rotating shaft (104) is provided with semicircular grooves (104a) whose number corresponds to the first semicircular cylinders (103c), and the first semicircular cylinders (103c) are slidably arranged in the semicircular grooves (104a).

4. The crane rope limiting device according to claim 3, characterized in that: The anti-slip component (105) comprises two connecting plates (105a) and a round rod (105b), one end of each of the two connecting plates (105a) is fixedly connected to a second round tube (105c), the inner wall of the second round tube (105c) is provided with a plurality of second semi-circular cylinders (105d) distributed along the circumference, and the second semi-circular cylinders (105d) are slidably arranged in the semi-circular groove (104a), the other ends of the two connecting plates (105a) are connected by the round rod (105b) to form a U-shaped structure, and the outer wall of the round rod (105b) abuts against the limit block (106).

5. The crane rope limiting device according to claim 1, characterized in that: One end of the rotating shaft (104) is provided with a slot (104b), and the inner wall of the slot (104b) is movably connected with a resistance rod (104c), and the outer wall of the other end of the rotating shaft (104) is provided with through holes (104d) distributed along the circumference, and a plurality of the through holes (104d) are movably provided with positioning rods (104e), and the positioning rods (104e) are inserted into the slot (104b) toward one end of the slot (104b) and abut against the resistance rod (104c), and the outer wall of the positioning rod (104e) is fixedly sleeved with a second spring (104f) and is fixedly connected to the inner wall of the through hole (104d) through the second spring (104f), and the end of the resistance rod (104c) inserted into the slot (104b) is fixedly connected with a third spring (104g) and is fixedly connected to the inner wall of the slot (104b) through the third spring (104g).

6. The crane rope limiting device according to claim 5, characterized in that: One end of the rotating shaft (104) away from the positioning rod (104e) is fixedly connected to a pull ring (104h), and the shape of the interference rod (104c) is a "convex" shape.

7. The crane rope limiting device according to claim 1, characterized in that: The limiting member (203) includes two vertical plates (203a) and a horizontal plate (203b), the horizontal plate (203b) is movably arranged in the slide groove (202), the two vertical plates (203a) are movably inserted into the inner side of the hook body (101b), the two vertical plates (203a) pass through the hook body (101b) and are inserted into the slide groove (202) and fixedly connected to the horizontal plate (203b), and the end of the steel cable (205) away from the winding drum (103) is fixedly connected to the bottom of the horizontal plate (203b).

8. The crane rope limiting device according to claim 7, characterized in that: There are several first springs (204), the upper ends of several first springs (204) are fixedly connected to the bottom of the horizontal plate (203b), and the lower ends of several first springs (204) are fixedly connected to the bottom surface of the inner wall of the slide groove (202).

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