Anti-falling double lifting hooks of crane

Abstract

The utility model relates to the technical field of lifting hooks, in particular to anti-falling double lifting hooks of a crane. The anti-falling double lifting hooks of the crane comprise two sets of lifting hooks, first connecting plates are installed on the upper end faces of the lifting hooks, first fixing blocks are connected to the upper end faces of the first connecting plates, and second connecting plates are connected to the upper end faces of the first fixing blocks; the two sets of sliding rods are arranged on the inner wall of the first fixing block and slidably connected with the lifting plate, the front end face of the lifting plate is connected with a connector, the rotating rods are connected to the two sides of the connector, the two rotating rods are rotatably connected with baffles, and a hanging rod is jointly connected between the other ends of the two baffles. The baffle is rotated, the hanging rod is clamped into the lifting hook, a rope arranged on the lifting hook in a sleeving mode can be prevented from falling off, and during disassembly, the connector is pressed downwards, so that the connector slides on the outer wall of the sliding rod through the lifting plate, the hanging rod is taken out of the lifting hook, and the rope is conveniently taken out of the lifting hook.

Description

Technical Field

[0001] The utility model relates to the technical field of hooks, in particular to an anti-falling double hook for a crane. Background Art

[0002] Hooks are divided into single hooks and double hooks according to their shape, and into forged hooks and laminated hooks according to their manufacturing method. Single hooks are simple to manufacture and easy to use, but have poor stress resistance and are mostly used in work environments with a lifting capacity of less than 80 tons. Laminated hooks are made of several pieces of cut and formed steel plates riveted together. When cracks appear on individual plates, the entire hook will not be damaged. It has better safety, but has a larger deadweight and is mostly used on cranes with large lifting capacity or for lifting molten steel ladle.

[0003] In the Chinese utility model patent with announcement number CN212127266U and announcement date 2020-12-11, a crane anti-slip double hook is disclosed, which discloses: it includes a fixed ring, and both sides of the front of the fixed ring are fixedly connected to movable blocks through bearings, and the lower surface of one movable block is fixedly connected to the first steel cable, and the lower surface of the other movable block is fixedly connected to the second steel cable. The crane anti-slip double hook is arranged by the first hook, the second hook, the first steel cable, the second steel cable, the clamping block, the fixed ring and the movable block. However, the existing technology still has many shortcomings. For example: when the rope hung in the hook is thicker, when the rope needs to be removed, the clamping block needs to be moved backward a distance first. When the clamping block moves backward, the thicker steel cable may block the clamping block, resulting in the clamping block being unable to retract and the rope cannot be removed. Utility Model Content

[0004] The purpose of the utility model is to provide a double hook for preventing a crane from falling off, which can improve the practicability of the double hook and facilitate the use of workers.

[0005] The utility model provides a double hook for preventing a crane from falling off, comprising: a hook, a first connecting plate, a first fixing block, a second connecting plate, a sliding rod, a lifting plate, a connecting head, a rotating rod, a baffle and a hanging rod;

[0006] The hook is provided with two groups, the first connecting plate is installed on the upper end surface of the hook, the first fixing block is connected to the upper end surface of the first connecting plate, and the second connecting plate is connected to the upper end surface of the first fixing block;

[0007] The two groups of sliding rods are both arranged on the inner wall of the first fixed block, and the two groups of sliding rods are both slidably connected to the lifting plate. The front end surface of the lifting plate is connected to the connecting head, and the rotating rod is connected to both sides of the connecting head. The two rotating rods are both rotatably connected to the baffle, and the other ends of the two baffles are commonly connected to a hanging rod.

[0008] Preferably, it further comprises a connecting rod, a second fixed block, a first fixed joint, a steel cable, a second fixed joint and a movable joint;

[0009] The connecting rod, the second fixing block, the first fixing joint, the steel cable, the second fixing joint and the movable joint are connected in sequence from bottom to top.

[0010] Further preferably, it further includes a fixing ring, a connecting ring and a mounting plate;

[0011] The two movable joints are connected to a fixing ring together, the connecting ring is connected to the top of the fixing ring, and the mounting plate is connected above the connecting ring.

[0012] Preferably, the inner wall of the hook is provided with an anti-slip groove, and an anti-slip pad is fitted in the anti-slip groove.

[0013] Preferably, a fixing groove is provided at the upper end of the first fixing block, and the first fixing block is fixedly connected to the second connecting plate through the fixing groove.

[0014] Preferably, a fixing hole is provided on the inner wall of the first fixing block, and the first fixing block is fixedly connected to the sliding rod through the fixing hole.

[0015] Further preferably, connecting rods are provided on both sides of the fixing ring, the fixing ring is rotatably connected to the movable joint through the provided connecting rods, and a connecting block is provided on the outer wall of the fixing ring, and the fixing ring is fixedly connected to the connecting ring through the provided connecting block.

[0016] Preferably, the hook further comprises an arc-shaped groove, a locking block and a positioning block;

[0017] The arc-shaped groove is provided on the bottom plate of the hook;

[0018] The size of the arc-shaped groove is set corresponding to the size of the hanging rod;

[0019] The locking block is provided on one side of the inner wall of the arc-shaped groove;

[0020] The positioning block is arranged on the other side of the inner wall of the arc-shaped groove.

[0021] Preferably, the hanging rod further includes a positioning groove and a locking groove;

[0022] The positioning groove is arranged at the top end of the hanging rod, and the locking groove is arranged at the outside of the hanging rod.

[0023] Further preferably, the hook further comprises a movable block, a movable rod and a return spring;

[0024] The two movable blocks are symmetrically arranged on both sides of the locking block;

[0025] The movable rod is arranged at one end of the locking block;

[0026] The locking block is connected to the hook through the movable rod and the return spring.

[0027] Beneficial effects:

[0028] The technical solution of the utility model can prevent the rope on the hook from falling off by rotating the baffle to make the hanging rod fit into the hook when in use. When disassembling, the connecting head is pressed down to make the connecting head slide on the outer wall of the slide rod through the lifting plate, so that the hanging rod is taken out from the hook, which makes it easy to take the rope out of the hook. The anti-falling double hook of the crane improves the practicality of the double hook and is convenient for the staff to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the hook in the utility model;

[0032] Figure 3 It is a partial structural diagram of the utility model;

[0033] Figure 4 This is a schematic diagram of the internal structure of the hanging rod clamping in the utility model;

[0034] Figure 5 This is a schematic diagram of the internal structure of the locking block in the present invention.

[0035] Description of reference numerals:

[0036] 1: hook; 101: arc groove; 102: locking block; 1021: movable block; 1022: movable rod; 1023: return spring; 103: positioning block;

[0037] 2: Anti-slip pad; 3: First connecting plate; 4: First fixed block; 5: Second connecting plate; 6: Connecting rod; 7: Second fixed block; 8: First fixed joint; 9: Lifting plate; 10: Connecting head; 11: Rotating rod; 12: Baffle; 13: Hanging rod; 1301: Positioning groove; 1302: Locking groove; 14: Sliding rod; 15: Spring; 16: Steel cable; 17: Second fixed joint; 18: Movable joint; 19: Fixed ring; 20: Connecting ring; 21: Mounting plate. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0041] like Figures 1 to 5As shown, the utility model provides a double hook 1 for preventing a crane from falling off, which comprises: a hook 1, a first connecting plate 3, a first fixed block 4, a second connecting plate 5, a sliding rod 14, a lifting plate 9, a connector 10, a rotating rod 11, a baffle 12 and a hanging rod 13. The hook 1 is provided with two groups, the first connecting plate 3 is mounted on the upper end surface of the hook 1, the first fixed block 4 is connected to the upper end surface of the first connecting plate 3, and the second connecting plate 5 is connected to the upper end surface of the first fixed block 4. Both groups of sliding rods 14 are arranged on the inner wall of the first fixed block 4, and both groups of sliding rods 14 are slidably connected to the lifting plate 9. The front end surface of the lifting plate 9 is connected to the connector 10, and the rotating rods 11 are connected to both sides of the connector 10. The two rotating rods 11 are both rotatably connected to the baffle 12, and the other ends of the two baffles 12 are commonly connected to the hanging rod 13.

[0042] The technical solution of the present invention can prevent the rope on the hook 1 from falling off by rotating the baffle 12 to make the hanging rod 13 fit into the hook 1 when in use. When disassembling, the connecting head 10 is pressed down to make the connecting head 1 slide on the outer wall of the slide rod 14 through the lifting plate 9, thereby removing the hanging rod 13 from the hook 1, making it easier to remove the rope from the hook 1. The anti-fall double hook 1 of the crane improves the practicality of the double hook 1 and is convenient for the staff to use.

[0043] When the hanging rod 13 is hung in the arc groove 101 on the hook 1, the spring 15 pushes the lifting plate 9 and the connecting head 10 through the reaction force to pull the baffle 12 and the hanging rod 13 upwards, thereby facilitating the removal of the rope set on the hook 1, thereby enhancing the safety and convenience of the hook 1.

[0044] The hook 1 also includes a movable block 1021, a movable rod 1022 and a return spring 1023. The two movable blocks 1021 are symmetrically arranged on both sides of the locking block 102. The movable rod 1022 is arranged at one end of the locking block 102. The locking block 102 is connected to the hook 1 through the movable rod 1022 and the return spring 1023.

[0045] The crane's anti-fall double hook 1 also includes a connecting rod 6, a second fixed block 7, a first fixed joint 8, a steel cable 16, a second fixed joint 17, and a movable joint 18. The connecting rod 6, the second fixed block 7, the first fixed joint 8, the steel cable 16, the second fixed joint 17, and the movable joint 18 are sequentially connected from bottom to top. The crane's anti-fall double hook 1 also includes a fixed ring 19, a connecting ring 20, and a mounting plate 21. Two movable joints 18 are connected to one fixed ring 19. The connecting ring 20 is connected to the top of the fixed ring 19, and the mounting plate 21 is connected above the connecting ring 20. Connecting rods are provided on both sides of the fixed ring 19. The fixed ring 19 is rotatably connected to the movable joint 18 via the provided connecting rods. The outer wall of the fixed ring 19 is provided with a connecting block. The fixed ring 19 is fixedly connected to the connecting ring 20 via the provided connecting block.

[0046] Specifically, when working, the user hangs the rope with the heavy object in the two groups of hooks 1, and the two groups of steel cables 16 lift the heavy object. When one of the two groups of hooks 1 and steel cables 16 breaks during the lifting process, the heavy object can be supported and suspended by the other group of hooks 1 and steel cables 16 to prevent the heavy object from falling from a high altitude and causing casualties. At the same time, the two groups of steel cables 16 can rotate on the surface of the fixed ring 19 through the two groups of movable joints 18, so that the distance between the two groups of steel cables 16 can be opened to the maximum angle, so that the rope with a longer binding distance can be put on the two groups of hooks 1, thereby enhancing the applicability of the device.

[0047] The hook 1 further includes an arcuate groove 101, a locking block 102, and a positioning block 103. The arcuate groove 101 is provided on the bottom plate of the hook 1. The size of the arcuate groove 101 corresponds to the size of the hanging rod 13. The locking block 102 is provided on one side of the inner wall of the arcuate groove 101, and the positioning block 103 is provided on the other side of the inner wall of the arcuate groove 101. The hanging rod 13 further includes a positioning groove 1301 and a locking groove 1302. The positioning groove 1301 is provided on the top of the hanging rod 13, and the locking groove 1302 is provided on the outside of the hanging rod 13.

[0048] Specifically, during operation, the hanging rod 13 is inserted into the corresponding arc-shaped groove 101 in the hook 1. When the hanging rod 13 is inserted, it presses and drives the locking block 102 to retract. The positioning groove 1301 at the top of the hanging rod 13 is aligned with the positioning block 103 in the arc-shaped groove 101 for engagement. At the same time, the locking block 102 is aligned with the locking groove 1302 on the outside of the hanging rod 13. The movable rod 1022 is driven by the reset spring 1023 to reset the locking block 102 and engage it into the locking groove 1302, thereby automatically locking the hanging rod 13 to prevent it from loosening. When disassembling, the locking block 102 is driven to move by moving the movable block 1021, and the locking block 102 is withdrawn from the locking groove 1302, so that the hanging rod 13 can be quickly removed from the arc-shaped groove 101.

[0049] The inner wall of the hook 1 is provided with an anti-slip groove, into which an anti-slip pad 2 is fitted. A fixing groove is provided at the upper end of the first fixing block 4, through which the first fixing block 4 is fixedly connected to the second connecting plate 5. The inner wall of the first fixing block 4 is provided with a fixing hole, through which the first fixing block 4 is fixedly connected to the slide rod 14.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A crane anti-fall double hook, characterized in that: include: A hook, a first connecting plate, a first fixing block, a second connecting plate, a sliding rod, a lifting plate, a connecting head, a rotating rod, a baffle and a hanging rod; The hook is provided with two groups, the first connecting plate is installed on the upper end surface of the hook, the first fixing block is connected to the upper end surface of the first connecting plate, and the second connecting plate is connected to the upper end surface of the first fixing block; The two groups of sliding rods are both arranged on the inner wall of the first fixed block, and the two groups of sliding rods are both slidably connected to the lifting plate. The front end surface of the lifting plate is connected to the connecting head, and the rotating rod is connected to both sides of the connecting head. The two rotating rods are both rotatably connected to the baffle, and the other ends of the two baffles are commonly connected to a hanging rod.

2. The crane anti-fall double hook according to claim 1 is characterized in that: It also includes a connecting rod, a second fixed block, a first fixed joint, a steel cable, a second fixed joint and a movable joint; The connecting rod, the second fixing block, the first fixing joint, the steel cable, the second fixing joint and the movable joint are connected in sequence from bottom to top.

3. The crane anti-fall double hook according to claim 2 is characterized in that: It also includes a fixing ring, a connecting ring and a mounting plate; The two movable joints are connected to a fixing ring together, the connecting ring is connected to the top of the fixing ring, and the mounting plate is connected above the connecting ring.

4. The anti-fall double hook for crane according to claim 1, characterized in that: The inner wall of the hook is provided with an anti-skid groove, and an anti-skid pad is fitted in the anti-skid groove.

5. The crane anti-fall double hook according to claim 1, characterized in that: A fixing groove is provided at the upper end of the first fixing block, and the first fixing block is fixedly connected to the second connecting plate through the fixing groove.

6. The crane anti-fall double hook according to claim 1, characterized in that: The inner wall of the first fixing block is provided with a fixing hole, and the first fixing block is fixedly connected to the sliding rod through the fixing hole.

7. The crane anti-fall double hook according to claim 3, characterized in that: Connecting rods are provided on both sides of the fixing ring, and the fixing ring is rotatably connected to the movable joint through the provided connecting rods. A connecting block is provided on the outer wall of the fixing ring, and the fixing ring is fixedly connected to the connecting ring through the provided connecting block.

8. The anti-fall double hook for crane according to claim 1, characterized in that: The hook also includes an arc-shaped groove, a locking block and a positioning block; The arc-shaped groove is provided on the bottom plate of the hook; The size of the arc-shaped groove is set corresponding to the size of the hanging rod; The locking block is provided on one side of the inner wall of the arc-shaped groove; The positioning block is arranged on the other side of the inner wall of the arc-shaped groove.

9. The crane anti-fall double hook according to claim 1, characterized in that: The hanging rod further includes a positioning groove and a locking groove; The positioning groove is arranged at the top end of the hanging rod, and the locking groove is arranged at the outside of the hanging rod.

10. The anti-fall double hook for crane according to claim 8, characterized in that: The hook also includes a movable block, a movable rod and a return spring; The two movable blocks are symmetrically arranged on both sides of the locking block; The movable rod is arranged at one end of the locking block; The locking block is connected to the hook through the movable rod and the return spring.

Images