Material hoisting safety protection device of tower crane

Abstract

The utility model relates to the technical field of tower crane safety, in particular to a tower crane material lifting safety protection device which comprises a connector used for being connected with a tower crane steel wire rope and a hook body rotationally connected to the lower portion of the connector, a reinforcing assembly is arranged on the lower end face of the connector, and the reinforcing assembly is rotationally connected with the upper end of the hook body. The hook body comprises a connecting rod and a hook, a fixing plate is rotatably connected to the connecting rod, a connecting plate is arranged on the outer side of the lower end face of the fixing plate, an inserting plate is slidably connected to the lower end face of the connecting plate through an elastic rod, an inserting groove is formed in the hook end of the hook, and a threaded rod which penetrates into the inserting groove and is provided with a rotating handle is rotatably connected to the fixing plate. The safety protection device can replace a traditional safety protection device to seal and lock the hook, has good sealing stability, and does not influence the sealing of the hook due to weakening of elastic potential energy, so that the safety during hoisting is greatly improved.

Description

Technical Field

[0001] The utility model relates to a tower crane material hoisting safety protection device, in particular to a tower crane material hoisting safety protection device, and belongs to the technical field of tower crane safety. Background Art

[0002] Tower cranes, also known as tower cranes, are the most commonly used lifting equipment on construction sites. They are primarily used in building and bridge construction, as well as in road and bridge construction, ports and ships, wind power and energy, mines and quarries, and other fields. They use an electric motor or hydraulic system to drive the lifting mechanism, which causes the pulley on the crane arm to lift objects, enabling vertical and horizontal material transportation and the installation of building components.

[0003] When hoisting materials, the existing tower crane only uses a hook to connect with the lifting hook or strap on the material for hanging and hoisting. When hanging with the material, the existing safety protection device generally uses an elastic snap structure to elastically seal the opening of the hook to prevent the material from detaching from the hook. However, the elastic potential energy of the elastic snap will weaken after long-term use, and the sealing of the hook opening will become weak, so that the material will detach from the hook during hanging, causing the material to fall, which poses a great danger to the workers below.

[0004] Therefore, there is an urgent need for a safety protection device for tower crane material lifting to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a tower crane material lifting safety protection device, which can replace the traditional safety protection device to seal and lock the hook, has good sealing stability, and will not weaken the elastic potential energy and affect the sealing of the hook, thereby greatly improving the safety during lifting.

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include: a tower crane material lifting safety protection device, comprising a connector for connecting to the tower crane wire rope and a hook body rotatably connected to the bottom of the connector, a reinforcement component is provided on the lower end surface of the connector, and the reinforcement component is rotatably connected to the upper end of the hook body;

[0007] The hook body includes a connecting rod and a hook, the connecting rod is rotatably connected to a fixed plate, a connecting plate is provided on the outer side of the lower end surface of the fixed plate, the lower end surface of the connecting plate is slidably connected to a plug plate through an elastic rod, a slot is provided at the hook end of the hook, and a threaded rod with a rotating handle that penetrates the slot is rotatably connected to the fixed plate.

[0008] Preferably, interconnected threaded holes are provided in the connecting plate, the fixing plate and the slot, a sliding hole with a diameter larger than that of the threaded rod is provided on the insert plate, the threaded rod passes through the sliding hole, and pull rods are provided on both sides of the insert plate.

[0009] Preferably, two elastic rods are symmetrically arranged, and the two elastic rods are respectively arranged on both sides of the lower end surface of the connecting plate. A sliding groove is provided on both sides of the lower end surface of the connecting plate. The elastic rod includes a compression spring arranged in the sliding groove and a sliding rod arranged in the sliding groove. One end of the sliding rod is connected to the compression spring, and the other end of the sliding rod is connected to the upper end surface of the plug plate.

[0010] Preferably, a limiting hole is provided inside the slot, and a limiting rod is provided on the lower end surface of the plug plate and is plugged into the limiting hole.

[0011] Preferably, the reinforcement assembly includes a U-shaped plate, reinforcement plates arranged on both sides of the U-shaped plate, and a support plate arranged between the two reinforcement plates, and the U-shaped plate and the support plate are respectively provided with a first connection hole and a second connection hole.

[0012] Preferably, the connecting rod passes through the first connecting hole and the second connecting hole, and a limiting plate is provided on the connecting rod, which contacts the upper end surface of the U-shaped plate and the upper end surface of the support plate, and the large diameter of the limiting plate is larger than the diameter of the first connecting hole and the second connecting hole.

[0013] Preferably, the upper end surface of the connector is provided with several rollers for connecting to the wire rope, and triangular support frames are provided on both sides of the connector. A second threaded rod with a handle is threadedly connected to the triangular support frame, and the lower end of the second threaded rod is provided with an auxiliary hook with an elastic buckle.

[0014] The utility model has at least the following beneficial effects:

[0015] 1. After the hook is hooked with the material, pull the pull rod upwards and rotate the fixed plate at the same time to drive the insert plate to rotate above the slot. Then release the pull rod and use the elastic rod to drive the insert plate into the slot. At this time, multiple threaded holes and sliding holes are connected. Then rotate the threaded rod to make it threadedly connected with the threaded holes on the slot. Later, when opening it, rotate the threaded rod to disengage it from the threaded holes on the slot, then pull the insert plate to disengage it from the slot, and then rotate the fixed plate. This can replace the traditional safety protection device to seal and lock the hook. It has good sealing stability and will not weaken the elastic potential energy to affect the sealing of the hook, thereby greatly improving safety during lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the reinforcement component of the present utility model;

[0020] Figure 4 It is a partial cross-sectional schematic diagram of the utility model;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the hook body of the utility model;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the hook body in the sealed state of the present invention.

[0023] In the figure, 1. connector; 2. hook body; 201. connecting rod; 202. hook; 3. reinforcement assembly; 4. fixing plate; 5. connecting plate; 6. elastic rod; 601. compression spring; 602. sliding rod; 7. inserting plate; 8. slot; 9. threaded rod; 10. threaded hole; 11. sliding hole; 12. sliding groove; 13. limiting hole; 14. limiting rod; 15. reinforcement plate; 16. support plate; 17. first connecting hole; 18. second connecting hole; 19. limiting plate; 20. roller; 21. triangular support frame; 22. second threaded rod; 23. elastic buckle; 24. auxiliary hook; 25. U-shaped plate; 26. pull rod. DETAILED DESCRIPTION

[0024] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0025] like Figures 1-6As shown, the tower crane material lifting safety protection device provided by this embodiment includes a connector 1 for connecting to the tower crane wire rope and a hook body 2 rotatably connected to the bottom of the connector 1. The upper end surface of the connector 1 is provided with several rollers 20 for connecting the wire rope. Triangular support frames 21 are provided on both sides of the connector 1. The triangular support frames 21 have good stability. A second threaded rod 22 with a handle is screwed on the triangular support frame 21. The lower end of the second threaded rod 22 is provided with an auxiliary hook 24 with an elastic buckle 23. The auxiliary hook 24 can be adjusted in height according to the use requirements to hang the material. When adjusting, the second threaded rod 22 is rotated by the handle to drive the auxiliary hook 24 to adjust to the corresponding height. The elastic buckle 23 plays the role of sealing the auxiliary hook 24. It should be noted that the auxiliary hook 24 only plays the role of auxiliary material hanging, so the elastic buckle 23 can be used to seal the auxiliary hook 24.

[0026] The lower end surface of the connector 1 is provided with a reinforcing assembly 3, which is rotatably connected to the upper end of the hook body 2; wherein the reinforcing assembly 3 includes a U-shaped plate 25, a reinforcing plate 15 arranged on both sides of the U-shaped plate 25, and a support plate 16 arranged between the two reinforcing plates 15, and the U-shaped plate 25 and the support plate 16 are respectively provided with a first connecting hole 17 and a second connecting hole 18, and a connecting rod 201 passes through the first connecting hole 17 and the second connecting hole 18, and a limiting plate 19 is provided on the connecting rod 201, which contacts the upper end surface of the U-shaped plate 25 and the upper end surface of the support plate 16, and the major diameter of the limiting plate 19 is larger than the diameter of the first connecting hole 17 and the second connecting hole 18. The setting of limiting by the two limiting plates 19 can improve the stability of the hook body 2 when connected to the connector 1;

[0027] The hook body 2 includes a connecting rod 201 and a hook 202. The connecting rod 201 is rotatably connected to a fixed plate 4. A connecting plate 5 is provided on the outer side of the lower end surface of the fixed plate 4. The lower end surface of the connecting plate 5 is slidably connected to an inserting plate 7 via an elastic rod 6. A slot 8 is provided at the hook end of the hook 202. A threaded rod 9 with a rotating handle that penetrates the slot 8 is rotatably connected to the fixed plate 4.

[0028] When the hook 202 is hooked, the pull rod 26 is pulled upward, and the fixing plate 4 is rotated at the same time, so that the plug plate 7 is rotated to the top of the slot 8, and then the pull rod 26 is released, and the elastic rod 6 is used to drive the plug plate 7 to be inserted into the slot 8. At this time, the multiple threaded holes 10 and the sliding holes 11 are connected, and the threaded rod 9 is rotated to be threadedly connected with the threaded holes 10 on the slot 8. It should be noted that the sliding hole 11 diameter is larger than the threaded rod 9, so the plug plate 7 can slide normally. Later, when opening, the threaded rod 9 is rotated to disengage it from the threaded hole 10 on the slot 8, and then the plug plate 7 is pulled to disengage it from the slot 8, and then the fixing plate 4 is rotated.

[0029] Furthermore, two elastic rods 6 are symmetrically provided, and the two elastic rods 6 are respectively provided on both sides of the lower end surface of the connecting plate 5. A slide groove 12 is provided on both sides of the lower end surface of the connecting plate 5. The elastic rod 6 includes a compression spring 601 provided in the slide groove 12 and a slide rod 602 provided in the slide groove 12. One end of the slide rod 602 is connected to the compression spring 601, and the other end of the slide rod 602 is connected to the upper end surface of the plug plate 7.

[0030] Furthermore, a limiting hole 13 is provided inside the slot 8, and a limiting rod 14 is provided on the lower end surface of the plug board 7 which is plugged into the limiting hole 13. During the rotation of the plug board 7, the pull rod 26 is used to lift it, and the compression spring 601 is used to make the slide bar 602 slide in the slide groove 12 to realize the contraction of the plug board 7, so that the plug board 7 can smoothly rotate to the position of the slot 8 when rotating. When the plug board 7 moves to the position of the slot 8, the pull rod 26 is released. At this time, the rebound effect of the compression spring 601 is used to eject the limiting rod 14 into the limiting hole 13 to achieve preliminary connection and fixation.

[0031] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term and should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0032] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0033] The above description shows and describes several preferred embodiments of the present invention. However, as previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. The tower crane material lifting safety protection device is characterized by: It comprises a connector (1) for connecting to a tower crane wire rope and a hook body (2) rotatably connected below the connector (1); a reinforcement component (3) is provided on the lower end surface of the connector (1); and the reinforcement component (3) is rotatably connected to the upper end of the hook body (2); The hook body (2) includes a connecting rod (201) and a hook (202), the connecting rod (201) is rotatably connected to a fixed plate (4), a connecting plate (5) is provided on the outer side of the lower end surface of the fixed plate (4), the lower end surface of the connecting plate (5) is slidably connected to a plug plate (7) via an elastic rod (6), a slot (8) is provided at the hook end of the hook (202), and a threaded rod (9) with a rotating handle that penetrates the slot (8) is rotatably connected to the fixed plate (4).

2. The tower crane material lifting safety protection device according to claim 1 is characterized in that: The connecting plate (5), the fixing plate (4) and the slot (8) are all provided with interconnected threaded holes (10); the inserting plate (7) is provided with a sliding hole (11) having a diameter larger than that of the threaded rod (9); the threaded rod (9) passes through the sliding hole (11); and pull rods (26) are provided on both sides of the inserting plate (7).

3. The tower crane material lifting safety protection device according to claim 1 is characterized in that: Two elastic rods (6) are symmetrically arranged, and the two elastic rods (6) are respectively arranged on both sides of the lower end surface of the connecting plate (5). Both sides of the lower end surface of the connecting plate (5) are provided with a slide groove (12). The elastic rod (6) includes a compression spring (601) arranged in the slide groove (12) and a slide rod (602) arranged in the slide groove (12). One end of the slide rod (602) is connected to the compression spring (601), and the other end of the slide rod (602) is connected to the upper end surface of the plugging plate (7).

4. The tower crane material lifting safety protection device according to claim 1 is characterized in that: A limiting hole (13) is provided inside the slot (8), and a limiting rod (14) plugged into the limiting hole (13) is provided on the lower end surface of the inserting plate (7).

5. The tower crane material lifting safety protection device according to claim 1 is characterized in that: The reinforcement assembly (3) comprises a U-shaped plate (25), reinforcement plates (15) arranged on both sides of the U-shaped plate (25), and a support plate (16) arranged between the two reinforcement plates (15); a first connection hole (17) and a second connection hole (18) are respectively formed on the U-shaped plate (25) and the support plate (16).

6. The tower crane material lifting safety protection device according to claim 5 is characterized in that: The connecting rod (201) passes through the first connecting hole (17) and the second connecting hole (18), and a limiting plate (19) is provided on the connecting rod (201) so as to contact the upper end surface of the U-shaped plate (25) and the upper end surface of the support plate (16), and the major diameter of the limiting plate (19) is greater than the diameter of the first connecting hole (17) and the second connecting hole (18).

7. The tower crane material lifting safety protection device according to claim 1 is characterized in that: The upper end surface of the connector (1) is provided with a plurality of rollers (20) for connecting with a steel wire rope, and triangular support frames (21) are provided on both sides of the connector (1). A second threaded rod (22) with a handle is screwed on the triangular support frame (21), and an auxiliary hook (24) with an elastic buckle (23) is provided at the lower end of the second threaded rod (22).

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