Crane lifting hook with rope locking structure

Abstract

The utility model discloses a crane hook with a rope locking structure, which comprises a hook body and a fixed block, the side wall of the fixed block is provided with an insertion hole, the hook body can be inserted and mounted in the insertion hole, the side wall of the fixed block is provided with a clamping groove, the clamping groove can limit an external rope, and the left and right sides of the fixed block are both provided with sleeves. A sliding rod is inserted into the sleeve, a pressing block is installed at one end of the sliding rod and can be pressed above an external rope, a protruding block is installed at the other end of the sliding rod, a threaded rod is installed in the middle of the lower wall of the fixing block, a threaded cylinder is rotationally installed on the outer side of the threaded rod, and a connecting plate is rotationally installed on the outer side of the threaded cylinder. According to the lifting hook, the fixing block is arranged on the lifting hook body, and the rope hung on the fixing block can be pressed and fixed through the pressing block on the fixing block, so that the purpose of locking the rope is achieved, it is guaranteed that the rope cannot move or slide, and it is guaranteed that goods are stable after being lifted.

Description

Technical Field

[0001] This patent relates to the technical field of crane hooks, specifically a crane hook with a locking rope structure. Background Art

[0002] Cranes are used to lift and transport heavy objects. Ropes are tied to the heavy objects, and then the ropes are placed in the hooks. The heavy objects are lifted by the hooks on the cranes. According to the technical specifications for safety of special equipment, the hooks of lifting equipment must be designed with a rope locking structure to prevent the ropes for lifting heavy objects from detaching from the hooks during the lifting process.

[0003] In a crane hook rope locking device proposed in publication number CN204714330U, a rotatable baffle is provided on the hook body so that the opening of the hook body is closed by the baffle, thereby achieving the purpose of locking the rope;

[0004] However, the rope locking structure proposed in the above document can only ensure that the rope will not detach from the hook, but cannot ensure that the rope can move left and right. As a result, the cargo is prone to tilt after lifting, affecting the stability of the cargo and increasing the risk of falling. Utility Model Content

[0005] The purpose of this patent is to provide a crane hook with a rope locking structure to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, this patent provides the following technical solutions: a crane hook with a rope locking structure, comprising a hook body and a fixing block, the side wall of the fixing block is provided with an insertion hole, the hook body can be inserted and installed in the insertion hole, the side wall of the fixing block is provided with a card slot, the card slot can limit the external rope;

[0007] The left and right sides of the fixed block are both equipped with sleeves, a sliding rod is inserted into the sleeve, a pressing block is installed at one end of the sliding rod, the pressing block can be pressed above the external rope, and a convex block is installed at the other end of the sliding rod;

[0008] A screw is installed in the middle of the lower wall of the fixed block, a threaded barrel is rotatably installed on the outer side of the screw, a connecting plate is rotatably installed on the outer side of the threaded barrel, a through hole is opened on the upper wall of the connecting plate, the sliding rod is inserted and installed in the through hole, and the protrusion can fit with the lower wall of the connecting plate.

[0009] Preferably, the sleeve includes a cylinder, a connecting block, a retaining ring and a spring, the side wall of the cylinder is installed with a connecting block, the connecting block is welded to the side wall of the fixed block, the inner wall of the cylinder is installed with a retaining ring, a spring is installed above the retaining ring, the side wall of the sliding rod is installed with a top ring, and the spring is placed between the top ring and the retaining ring.

[0010] Preferably, a mounting hole is opened on the upper wall of the connecting plate, the threaded barrel is inserted and installed in the mounting hole, and a connecting ring is installed on the side wall of the threaded barrel. There are two connecting rings in total, and the two connecting rings are respectively located on the upper and lower sides of the connecting plate.

[0011] Preferably, rubber stoppers are inserted and installed at both upper and lower ends of the cylinder, the cross section of the rubber stopper is conical, and a drainage groove is provided on the side wall of the rubber stopper.

[0012] Preferably, one end of a support rod is mounted on the upper wall of the fixing block, a cross bar is mounted on the other end of the support rod, and the pressing block can be placed under the cross bar.

[0013] Preferably, a mounting groove is provided on the lower wall of the pressing block, the sliding rod is inserted into the mounting groove, and a limiting block is installed at one end of the sliding rod located in the mounting groove.

[0014] Compared with the prior art, the beneficial effects of this patent are:

[0015] The device is provided with a fixing block on the hook body, and the rope hung on the fixing block can be pressed and fixed by the pressing block on the fixing block, so as to achieve the purpose of locking the rope, ensure that the rope will not move or slide, and ensure that the cargo can be kept stable after lifting;

[0016] In addition, the device is also provided with rubber plugs on both the upper and lower sides of the sleeve, which can block rainwater and prevent rainwater from entering the sleeve, causing the internal spring to rust and affecting the resetting of the pressure block. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of this patent.

[0018] Figure 2 This is a schematic diagram of the fixed block structure of this patent.

[0019] Figure 3 This is a schematic diagram of the internal structure of the sleeve of this patent.

[0020] In the figure: 1 hook body, 2 fixing block, 3 jack, 4 slot, 5 sleeve, 6 slide rod, 7 pressure block, 8 protrusion, 9 screw, 10 threaded cylinder, 11 connecting plate, 12 through hole, 13 top ring, 14 mounting hole, 15 connecting ring, 16 rubber plug, 17 drainage groove, 18 support rod, 19 cross bar, 20 mounting groove, 21 limit block, 51 cylinder, 52 connecting block, 53 snap ring, 54 spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of this patent to clearly and completely describe the technical solutions in the embodiments of this patent. Obviously, the described embodiments are only part of the embodiments of this patent, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0022] See also Figure 1-3 This patent provides a technical solution: a crane hook with a rope locking structure, comprising a hook body 1 and a fixing block 2, a plug hole 3 is provided on the side wall of the fixing block 2, the hook body 1 can be inserted and installed in the plug hole 3, and a card slot 4 is provided on the side wall of the fixing block 2, and the card slot 4 can limit the external rope;

[0023] When installing the external rope on the hook body 1, the rope needs to be placed in the slot 4 on the fixing block 2 so that the position of the rope is limited by the slot 4 to prevent the rope from sliding left and right on the hook body 1;

[0024] The left and right sides of the fixed block 2 are both equipped with sleeves 5, a slide bar 6 is inserted into the sleeve 5, a pressing block 7 is installed at one end of the slide bar 6, the pressing block 7 can be pressed above the external rope, and a convex block 8 is installed at the other end of the slide bar 6;

[0025] By rotating the threaded cylinder 10, the connecting plate 11 can be driven to move downward, so that it drives the slide bar 6 and the pressure block 7 to move downward, so that the pressure block 7 presses the rope, leading to the purpose of locking the rope. At this time, the rope will not slide back and forth, ensuring the stability of the cargo after lifting;

[0026] A screw rod 9 is installed in the middle of the lower wall of the fixed block 2, a threaded tube 10 is rotatably installed on the outer side of the screw rod 9, a connecting plate 11 is rotatably installed on the outer side of the threaded tube 10, a through hole 12 is opened on the upper wall of the connecting plate 11, the sliding rod 6 is inserted and installed in the through hole 12, and the protrusion 8 can fit with the lower wall of the connecting plate 11.

[0027] Specifically, the sleeve 5 includes a cylinder 51, a connecting block 52, a snap ring 53 and a spring 54. The connecting block 52 is installed on the side wall of the cylinder 51, and the connecting block 52 is welded to the side wall of the fixed block 2. The snap ring 53 is installed on the inner wall of the cylinder 51, and the spring 54 is installed above the snap ring 53. The side wall of the slide rod 6 is installed with a top ring 13, and the spring 54 is placed between the top ring 13 and the snap ring 53.

[0028] By arranging a spring 54 in the cylinder body 51, when the threaded cylinder 10 is loosened, the slide bar 6 and the pressure block 7 can be automatically reset by the elastic force of the spring 54, thereby releasing the pressure on the rope.

[0029] Specifically, the upper wall of the connecting plate 11 is provided with a mounting hole 14, the threaded barrel 10 is inserted and installed in the mounting hole 14, and the side wall of the threaded barrel 10 is provided with a connecting ring 15, and there are two connecting rings 15, which are respectively located at the upper and lower sides of the connecting plate 11;

[0030] Because the connecting plate 11 is sleeved on the outside of the threaded barrel 10 , the connecting plate 11 may not rotate together with the threaded barrel 10 , but under the action of the connecting ring 15 , the connecting plate 11 may move up and down with the threaded barrel 10 .

[0031] Specifically, rubber plugs 16 are inserted and installed at both the upper and lower ends of the cylinder 51. The cross section of the rubber plug 16 is conical, and a drainage groove 17 is opened on the side wall of the rubber plug 16.

[0032] The rubber plug 16 can seal the cylinder 51 to prevent the entry of rainwater from the outside, and prevent the rainwater from causing the spring 54 inside the cylinder 51 to rust, thereby affecting the reset of the slide rod 6 and the pressure block 7;

[0033] The drainage groove 17 can guide the water on the rubber stopper 16 to be discharged.

[0034] Specifically, one end of a support rod 18 is installed on the upper wall of the fixed block 2, and a cross bar 19 is installed on the other end of the support rod 18, and the pressing block 7 can be placed under the cross bar 19;

[0035] Because the slide bar 6 is installed on one side of the pressing block 7 , in order to make the pressing block 7 more stable, the side of the pressing block 7 away from the slide bar 6 is pressed by the cross bar 19 .

[0036] Specifically, a mounting groove 20 is formed on the lower wall of the pressing block 7, the slide rod 6 is inserted into the mounting groove 20, and a limit block 21 is installed at one end of the slide rod 6 located in the mounting groove 20;

[0037] The limiting block 21 is movable in the mounting groove 20 , so the pressing block 7 can swing above the slide bar 6 , making it convenient to insert the pressing block 7 under the cross bar 19 .

[0038] Working principle: first install the external rope on the hook body 1, and place the rope in the slot 4 on the fixing block 2, so that the position of the rope is limited by the slot 4;

[0039] Then insert one end of the pressure block 7 under the cross bar 19, and then by rotating the threaded cylinder 10, the connecting plate 11 can be driven to move downward, so that it drives the sliding rod 6 and the pressure block 7 to move downward, so that the pressure block 7 presses the rope, resulting in the purpose of locking the rope. At this time, the rope will not slide back and forth, ensuring the stability of the cargo after lifting.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A crane hook with a rope locking structure, comprising a hook body (1) and a fixing block (2), characterized in that: The side wall of the fixing block (2) is provided with an insertion hole (3), and the hook body (1) can be inserted and installed in the insertion hole (3); the side wall of the fixing block (2) is provided with a clamping groove (4), and the clamping groove (4) can limit the position of the external rope; The left and right sides of the fixed block (2) are both provided with sleeves (5), a sliding rod (6) is inserted and installed in the sleeve (5), a pressing block (7) is installed at one end of the sliding rod (6), and the pressing block (7) can be pressed above the external rope, and a convex block (8) is installed at the other end of the sliding rod (6); A screw rod (9) is installed in the middle of the lower wall of the fixed block (2), a threaded tube (10) is rotatably installed on the outer side of the screw rod (9), a connecting plate (11) is rotatably installed on the outer side of the threaded tube (10), a through hole (12) is opened on the upper wall of the connecting plate (11), the sliding rod (6) is inserted and installed in the through hole (12), and the protrusion (8) can be fitted with the lower wall of the connecting plate (11).

2. The crane hook with a rope locking structure according to claim 1, characterized in that: The sleeve (5) comprises a cylinder (51), a connecting block (52), a snap ring (53) and a spring (54); the side wall of the cylinder (51) is provided with a connecting block (52), the connecting block (52) is welded to the side wall of the fixing block (2); the inner wall of the cylinder (51) is provided with a snap ring (53), the upper part of the snap ring (53) is provided with a spring (54); the side wall of the slide rod (6) is provided with a top ring (13), the spring (54) is arranged between the top ring (13) and the snap ring (53).

3. The crane hook with a rope locking structure according to claim 1, characterized in that: The upper wall of the connecting plate (11) is provided with a mounting hole (14), the threaded barrel (10) is inserted and mounted in the mounting hole (14), and the side wall of the threaded barrel (10) is provided with a connecting ring (15), and there are two connecting rings (15) in total, and the two connecting rings (15) are respectively located on the upper and lower sides of the connecting plate (11).

4. The crane hook with a rope locking structure according to claim 2, characterized in that: Rubber stoppers (16) are inserted and installed at both upper and lower ends of the cylinder (51). The cross section of the rubber stopper (16) is conical, and a drainage groove (17) is provided on the side wall of the rubber stopper (16).

5. The crane hook with a rope locking structure according to claim 1, characterized in that: One end of a support rod (18) is mounted on the upper wall of the fixed block (2), a cross bar (19) is mounted on the other end of the support rod (18), and the pressing block (7) can be placed below the cross bar (19).

6. The crane hook with a rope locking structure according to claim 1, characterized in that: The lower wall of the pressing block (7) is provided with a mounting groove (20), the sliding rod (6) is inserted into the mounting groove (20), and a limiting block (21) is installed at one end of the sliding rod (6) located in the mounting groove (20).

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