Suspension arm lifting hook structure for hoisting equipment

Abstract

The utility model discloses a lifting arm and lifting hook structure for lifting equipment, which comprises a supporting arm vertically arranged on the lifting equipment, and further comprises a mounting mechanism for providing adjustable mounting for the supporting arm, a lifting arm mechanism for forming a telescopic lifting arm structure and a lifting hook mechanism for carrying out anti-dropping lifting on an object, the mounting mechanism is arranged at the bottom of the supporting arm, the suspension arm mechanism is assembled at the upper end of the supporting arm, and the lifting hook mechanism is arranged at one end, far away from the supporting arm, of the suspension arm mechanism. And the lifting arm mechanism is matched with the lifting hook mechanism to form a telescopic lifting arm structure, the number of connecting nodes is small, and the supporting stability of the lifting arm and lifting hook structure can be effectively improved while the lifting operation requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting devices, in particular to a suspension arm hook structure for lifting equipment. Background Art

[0002] In the prior art, there are many kinds of lifting equipment, including tower cranes, gantry cranes, truck cranes, etc., but these are large-scale lifting equipment with high cost of use and large occupied space. In addition, many construction sites use cranes or forklifts frequently, so it is necessary to purchase two kinds of equipment, which increases the production cost of the enterprise. In the use of ordinary single-arm cranes, it is easy to lift the tail. In the construction of water conservancy projects, large and heavy objects need to be lifted or hoisted. When using a crane for lifting, since steel wire ropes are used to lift objects, the steel wire ropes are easily deformed, causing them to swing easily when lifting objects. Due to the large weight and inertia of the objects, there is a safety risk of collision with people or objects around the lifting environment. In addition, due to the difficulty of crane transportation, lifting is becoming more and more difficult, the cost of lifting is becoming higher and higher, the lifting time is becoming longer and longer, and the site requirements are high during its installation, and the transfer efficiency is low.

[0003] The Chinese utility model patent with application number: 202021083888.7 discloses an engineering lifting equipment, including a lifting vehicle body and a control room, the lifting vehicle body is provided with a hanger, the hanger is provided with a hook device, the lifting vehicle body is provided with a hinged seat, the hinged seat is provided with a swing arm that can rotate up and down, the swing arm is provided with a sliding arm that can slide, the lifting vehicle body is hingedly provided with a jacking mechanism for driving the swing arm to rotate, the jacking mechanism is provided with an electric push rod mechanism for driving the sliding arm to slide, the front end of the sliding arm is provided with a guard claw that can rotate up and down, the inner side of the guard claw is provided with a buffer pad, the bottom of the front end of the sliding arm is hingedly provided with a telescopic connecting rod connected to the guard claw, and the top of the buffer pad is provided with a pressure sensor. However, this type of engineering lifting equipment has a relatively complex structure and needs to be coordinated with its bottom body to perform lifting operations. It cannot be coordinated with different equipment in different environments to achieve the purpose of lifting operations. It has certain usage restrictions. It uses multiple booms to form a segmented lifting boom structure, and multiple groups of booms are connected and supported by a single electric push rod structure, and its support stability is poor. Utility Model Content

[0004] The utility model aims to provide a boom hook structure for lifting equipment.

[0005] In order to achieve the above purpose, the technical solution proposed by the utility model is:

[0006] A boom hook structure for a lifting device comprises a support arm, which is vertically arranged on the lifting device, and also comprises a mounting mechanism for providing adjustable mounting for the support arm, a boom mechanism for forming a telescopic boom structure, and a hook mechanism for anti-falling lifting of an object, wherein the mounting mechanism is arranged at the bottom of the support arm, the boom mechanism is assembled at the upper end of the support arm, and the hook mechanism is arranged at one end of the boom mechanism away from the support arm.

[0007] The mounting mechanism includes a support base, a support turntable, a beam assembly and a lifting assembly. The support base is arranged at the bottom of the support arm and is rotatably connected to the support arm. The support turntable is arranged at the upper end of the support base and is rotatably connected to the support base. The support turntable is fixedly connected to the bottom of the support arm by bolts. The beam assembly is arranged at the upper end of the support arm. Two groups of lifting assemblies are provided, and the two groups of lifting assemblies are symmetrically arranged at both ends of the beam assembly.

[0008] It also includes a support mounting plate, which is arranged on one side of the lower part of the support base and is fixedly connected to the support base.

[0009] The crossbeam assembly includes a supporting crossbeam, a supporting core rod and a supporting end block. The supporting crossbeam is arranged on a side of the lower part of the supporting base away from the supporting mounting plate and is fixedly connected to the supporting base. The supporting core rod is provided with two groups. The two groups of supporting core rods are symmetrically arranged on both sides of the inner part of the supporting crossbeam and plugged with the supporting crossbeam. A locking wrench is provided at the connection between the supporting crossbeam and the supporting core rod. The supporting end blocks are provided with two groups. The two groups of supporting end blocks are respectively arranged at one end of the two groups of supporting core rods away from the supporting crossbeam and are fixedly connected to the supporting crossbeam. A locking wrench is provided at the connection between the supporting end block and the supporting core rod.

[0010] The lifting assembly includes a lifting hydraulic rod and a lifting support foot. The lifting hydraulic rod is arranged on a side of the support end block away from the support core rod and is fixedly connected to the support end block through an installation shaft. The lifting hydraulic rod is arranged vertically, and the lifting support foot is arranged at the lower end of the lifting hydraulic rod and is fixedly connected to the lifting hydraulic rod.

[0011] The boom mechanism includes a boom bracket, a boom hydraulic rod and a boom assembly. The boom bracket is arranged at the upper end of the support arm and is rotatably connected to the support arm through a rotating shaft. The boom hydraulic rod is obliquely arranged between the support arm and the boom bracket and its two ends are respectively rotatably connected to the support arm and the boom bracket. The boom assembly is arranged on a side of the boom bracket away from the support arm.

[0012] The boom assembly includes a boom main rod, a boom core rod and a boom end block. The boom main rod is arranged on a side of the boom bracket away from the supporting arm and one end of the boom main rod is fixedly connected to the boom bracket. The boom core rod is arranged on an end of the boom main rod away from the boom bracket and is plugged into the boom main rod. The boom end block is arranged on an end of the boom core rod away from the boom main rod and is fixedly connected to the boom core rod.

[0013] The hook mechanism comprises a hook base block and a hook body. The hook base block is arranged below the boom end block and is hooked with the boom end block. The hook body is arranged on the lower inner side of the hook base block and is rotatably connected with the hook base block through a rotating shaft.

[0014] It also includes an anti-slip block, which is arranged at the opening of the hook body and the upper end of which is rotatably connected to the hook body through a rotating shaft, and a torsion spring is provided at the connection between the anti-slip block and the hook body.

[0015] Fixed pulleys are provided on the lower inner side of the boom end block and the upper inner side of the hook base block, and a hoisting rope is arranged around the two sets of fixed pulleys. The hook base block is hung with the boom end block through the fixed pulleys and the hoisting ropes.

[0016] The beneficial effects of the utility model are:

[0017] The structure is simple and equipped with a mounting mechanism. The boom can be installed in different environments to perform lifting work independently, and can be coordinated with different equipment to achieve the purpose of lifting operations. It has a wide range of uses. A boom mechanism and a hook mechanism cooperate to form a telescopic boom structure with few connection nodes, which can effectively improve the supporting stability of the boom hook structure while meeting the needs of lifting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cooperation between the installation mechanism, the support arm and the suspension arm mechanism of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the hook mechanism of the utility model.

[0021] In the figure: 1. support arm; 2. support base; 3. support turntable; 4. support mounting plate; 5. support beam; 6. support core rod; 7. support end block; 8. lifting hydraulic rod; 9. lifting support foot; 10. boom bracket; 11. boom hydraulic rod; 12. boom main rod; 13. boom core rod; 14. boom end block; 15. hook base block; 16. hook body; 17. anti-slip block. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] A crane hook structure for a lifting device includes a support arm 1, which is vertically arranged on the lifting device, and also includes a mounting mechanism for providing adjustable mounting for the support arm 1, a crane mechanism for forming a telescopic crane structure, and a hook mechanism for anti-drop lifting of an object. The mounting mechanism is arranged at the bottom of the support arm 1, the crane mechanism is assembled at the upper end of the support arm 1, and the hook mechanism is arranged at the end of the crane mechanism away from the support arm 1. The overall structural schematic diagram of the utility model is shown as follows Figure 1 shown.

[0024] The installation mechanism includes a support base 2, a support turntable 3, a beam assembly and a lifting assembly. The support base 2 is arranged at the bottom of the support arm 1 and is rotatably connected to the support arm 1. The support turntable 3 is arranged at the upper end of the support base 2 and is rotatably connected to the support base 2. The support turntable 3 is fixedly connected to the bottom of the support arm 1 by bolts. The beam assembly is arranged at the upper end of the support arm 1. The lifting assembly is provided with two groups, and the two groups of lifting assemblies are symmetrically arranged at both ends of the beam assembly. The installation mechanism cooperates with the support base 2, the support turntable 3, the beam assembly and the lifting assembly to provide an adjustable installation for the support arm 1 to lift the crane. The arm structure is installed in different environments or cooperates with different lifting equipment, wherein the support base 2 is used to provide a rotating support for the support turntable 3, the support turntable 3 is used to provide installation support for the support arm 1 and rotatably connect the support arm 1 to the support base 2, the beam assembly is used as an installation beam structure on the support base 2, so as to provide installation support for the lifting assembly, and the lifting assembly is used to provide adjustable installation support for the beam assembly to install the boom structure in different environments or cooperate with different lifting equipment. The schematic diagram of the installation mechanism of the utility model, the support arm 1 and the boom mechanism is shown in Figure 2 shown.

[0025] It also includes a support mounting plate 4, which is arranged on the lower side of the support base 2 and fixedly connected to the support base 2, wherein the support mounting plate 4 is used as a mounting structure on the support base 2 to meet the installation and coordination requirements between the support base 2 and different lifting equipment.

[0026] The crossbeam assembly includes a supporting crossbeam 5, a supporting core rod 6 and a supporting end block 7. The supporting crossbeam 5 is arranged on the side of the lower part of the supporting base 2 away from the supporting mounting plate 4 and is fixedly connected to the supporting base 2. The supporting core rod 6 is provided with two groups. The two groups of supporting core rods 6 are symmetrically arranged on both sides of the inner part of the supporting crossbeam 5 and plugged with the supporting crossbeam 5. A locking wrench is provided at the connection between the supporting crossbeam 5 and the supporting core rod 6. The supporting end block 7 is provided with two groups. The two groups of supporting end blocks 7 are respectively arranged at one end of the two groups of supporting core rods 6 away from the supporting crossbeam 5 and are fixedly connected to the supporting crossbeam 5. The supporting end blocks 7 are connected to the supporting crossbeam 5. A locking wrench is provided at the connection of the core rod 6. The beam assembly cooperates with the supporting beam 5, the supporting core rod 6 and the supporting end block 7 to serve as an installation beam structure on the supporting base 2, thereby providing installation support for the lifting assembly. The supporting beam 5 is used to provide installation support for the supporting core rod 6. The supporting core rod 6 is used to form a telescopic beam structure together with the supporting beam 5. The locking wrench at the connection between the two can be used to achieve locking and unlocking between the supporting beam 5 and the supporting core rod 6. The supporting end block 7 is used as an end block structure on the supporting core rod 6, thereby providing installation support for the lifting assembly.

[0027] The lifting assembly includes a lifting hydraulic rod 8 and a lifting foot 9. The lifting hydraulic rod 8 is arranged on a side of the support end block 7 away from the support core rod 6 and is fixedly connected to the support end block 7 through a mounting shaft. The lifting hydraulic rod 8 is arranged vertically, and the lifting foot 9 is arranged at the lower end of the lifting hydraulic rod 8 and is fixedly connected to the lifting hydraulic rod 8. The lifting assembly cooperates with the lifting hydraulic rod 8 and the lifting foot 9 to provide adjustable mounting support for the beam assembly to adjust the mounting height of the boom structure and to install the boom structure in different environments or to cooperate with different lifting equipment. Among them, the lifting hydraulic rod 8 is used to provide adjustable support for the beam assembly, and can drive the beam assembly to perform lifting and lowering movements through its telescopic action, thereby adjusting the mounting height of the boom structure. The lifting foot 9 is used as a support foot structure at the bottom of the lifting hydraulic rod 8, so that the lifting hydraulic rod 8 can be installed in different environments or to cooperate with different lifting equipment.

[0028] The boom mechanism includes a boom bracket 10, a boom hydraulic rod 11 and a boom assembly, wherein the boom bracket 10 is arranged at the upper end of the supporting arm 1 and is rotatably connected to the supporting arm 1 through a rotating shaft, the boom hydraulic rod 11 is obliquely arranged between the supporting arm 1 and the boom bracket 10 and its two ends are rotatably connected to the supporting arm 1 and the boom bracket 10 respectively, and the boom assembly is arranged on the side of the boom bracket 10 away from the supporting arm 1, and the boom mechanism cooperates with the boom bracket 10, the boom hydraulic rod 11 and the boom assembly to form a retractable boom structure, wherein the boom bracket 10 is used to provide installation support for the boom assembly and rotatably connect the boom assembly to the supporting arm 1, the boom hydraulic rod 11 is used to provide adjustable support for the boom bracket 10, and the angle between the boom bracket 10 and the boom assembly and the supporting arm 1 can be adjusted through the telescopic action of the boom hydraulic rod 11, and the boom assembly is used to form a retractable boom structure.

[0029] The boom assembly includes a boom main rod 12, a boom core rod 13 and a boom end block 14, the boom main rod 12 is arranged on a side of the boom bracket 10 away from the support arm 1 and one end of the boom main rod 12 is fixedly connected to the boom bracket 10, the boom core rod 13 is arranged at one end of the boom main rod 12 away from the boom bracket 10 and plugged into the boom main rod 12, the boom end block 14 is arranged at one end of the boom core rod 13 away from the boom main rod 12 and fixedly connected to the boom core rod 13, the boom assembly cooperates with the boom main rod 12, the boom core rod 13 and the boom end block 14 to form a retractable boom structure, wherein the boom main rod 12 is used to provide installation support for the boom core rod 13, the boom core rod 13 is used to form a retractable boom structure together with the boom main rod 12, and the boom end block 14 is used as a mounting structure on the boom core rod 13.

[0030] The hook mechanism includes a hook base block 15 and a hook body 16. The hook base block 15 is arranged below the boom end block 14 and is hung with the boom end block 14. The hook body 16 is arranged on the lower inner side of the hook base block 15 and is rotatably connected to the hook base block 15 through a rotating shaft. The hook mechanism cooperates with the hook base block 15 and the hook body 16 to form a hook structure at the end of the boom. The hook base block 15 is used to provide installation support for the hook body 16 and connect the hook body 16 to the boom end block 14 through a hoisting rope and a fixed pulley. The hook body 16 is used to form a hook structure at the end of the boom. The schematic diagram of the hook mechanism structure of the utility model is shown in FIG. Figure 3 shown.

[0031] It also includes an anti-dropout stopper 17, which is arranged at the opening of the hook body 16 and whose upper end is rotatably connected to the hook body 16 via a rotating shaft, and a torsion spring is provided at the connection between the anti-dropout stopper 17 and the hook body 16, wherein the anti-dropout stopper 17 is used as a stopper structure at the opening of the hook body 16, which can effectively prevent the hoisted items on the hook from falling off.

[0032] Fixed pulleys are provided on the lower inner side of the boom end block 14 and the upper inner side of the hook base block 15, and a lifting rope is arranged around the two sets of fixed pulleys. The hook base block 15 is hung with the boom end block 14 through the fixed pulleys and the lifting ropes, wherein the fixed pulleys and the lifting ropes are used as a hanging connection structure between the boom end block 14 and the hook base block 15.

[0033] Among them, in this technical solution, the lifting equipment is a crane, a crane truck, a crane ship or other equipment used for lifting, and the device can be directly arranged on the ground to perform lifting and hoisting work according to actual use requirements.

[0034] Working principle:

[0035] When objects need to be hoisted in different environments or through different lifting equipment, the device can be installed in the corresponding environment or on the corresponding lifting equipment through the installation mechanism, and then the object can be hoisted through the boom mechanism and the hook mechanism. The length of the boom or the length of the beam assembly can be adjusted according to actual use requirements to meet the hoisting and installation requirements. The height of the device can also be adjusted according to the lifting assembly to meet the hoisting requirements. The device is not limited by the environment and lifting equipment and can work independently.

[0036] The beneficial effects of the utility model are that it has a simple structure and is equipped with a mounting mechanism. The boom can be installed in different environments to perform lifting work independently, and can be coordinated with different equipment to achieve the purpose of lifting operations. It has a wide range of uses. A boom mechanism and a hook mechanism are coordinated to form a telescopic boom structure with few connection nodes. While meeting the needs of lifting operations, it can effectively improve the supporting stability of the boom hook structure.

[0037] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A lifting arm hook structure for a lifting device, comprising a support arm (1), wherein the support arm (1) is vertically arranged on the lifting device, and is characterized in that: It also comprises a mounting mechanism for providing adjustable mounting for the support arm (1), a lifting arm mechanism for forming a telescopic lifting arm structure, and a hook mechanism for preventing an object from falling off and lifting it, wherein the mounting mechanism is arranged at the bottom of the support arm (1), the lifting arm mechanism is assembled at the upper end of the support arm (1), and the hook mechanism is arranged at an end of the lifting arm mechanism away from the support arm (1).

2. A lifting equipment boom hook structure as claimed in claim 1, characterized in that: The mounting mechanism comprises a support base (2), a support turntable (3), a crossbeam assembly and a lifting assembly, wherein the support base (2) is arranged at the bottom of the support arm (1) and is rotatably connected to the support arm (1), the support turntable (3) is arranged at the upper end of the support base (2) and is rotatably connected to the support base (2), the support turntable (3) is fixedly connected to the bottom of the support arm (1) by bolts, the crossbeam assembly is arranged at the upper end of the support arm (1), and the lifting assembly is provided with two groups, and the two groups of lifting assemblies are symmetrically arranged at both ends of the crossbeam assembly.

3. A lifting equipment boom hook structure as claimed in claim 2, characterized in that: It also comprises a support mounting plate (4), wherein the support mounting plate (4) is arranged on one side of the lower part of the support base (2) and is fixedly connected to the support base (2).

4. A lifting equipment boom hook structure as claimed in claim 3, characterized in that: The crossbeam assembly comprises a supporting crossbeam (5), a supporting core rod (6) and a supporting end block (7); the supporting crossbeam (5) is arranged on a side of the lower part of the supporting base (2) away from the supporting mounting plate (4) and is fixedly connected to the supporting base (2); the supporting core rod (6) is provided with two groups, the two groups of supporting core rods (6) are symmetrically arranged on both sides of the interior of the supporting crossbeam (5) and plugged into the supporting crossbeam (5); a locking wrench is provided at the connection between the supporting crossbeam (5) and the supporting core rod (6); the supporting end block (7) is provided with two groups, the two groups of supporting end blocks (7) are respectively arranged at one end of the two groups of supporting core rods (6) away from the supporting crossbeam (5) and are fixedly connected to the supporting crossbeam (5); a locking wrench is provided at the connection between the supporting end block (7) and the supporting core rod (6).

5. A lifting equipment boom hook structure as claimed in claim 4, characterized in that: The lifting assembly comprises a lifting hydraulic rod (8) and a lifting support foot (9); the lifting hydraulic rod (8) is arranged on a side of the support end block (7) away from the support core rod (6) and is fixedly connected to the support end block (7) via a mounting shaft; the lifting hydraulic rod (8) is arranged vertically; and the lifting support foot (9) is arranged at the lower end of the lifting hydraulic rod (8) and is fixedly connected to the lifting hydraulic rod (8).

6. A lifting equipment boom hook structure as claimed in claim 5, characterized in that: The boom mechanism comprises a boom support (10), a boom hydraulic rod (11) and a boom assembly, wherein the boom support (10) is arranged at the upper end of the support arm (1) and is rotatably connected to the support arm (1) via a rotating shaft, the boom hydraulic rod (11) is obliquely arranged between the support arm (1) and the boom support (10) and its two ends are rotatably connected to the support arm (1) and the boom support (10) respectively, and the boom assembly is arranged on a side of the boom support (10) away from the support arm (1).

7. A lifting equipment boom hook structure as claimed in claim 6, characterized in that: The boom assembly comprises a boom main rod (12), a boom core rod (13) and a boom end block (14); the boom main rod (12) is arranged on a side of the boom bracket (10) away from the support arm (1) and one end of the boom main rod is fixedly connected to the boom bracket (10); the boom core rod (13) is arranged on an end of the boom main rod (12) away from the boom bracket (10) and plugged into the boom main rod (12); the boom end block (14) is arranged on an end of the boom core rod (13) away from the boom main rod (12) and fixedly connected to the boom core rod (13).

8. A lifting equipment boom hook structure as claimed in claim 7, characterized in that: The hook mechanism comprises a hook base block (15) and a hook body (16); the hook base block (15) is arranged below the boom end block (14) and is hooked to the boom end block (14); the hook body (16) is arranged on the lower inner side of the hook base block (15) and is rotatably connected to the hook base block (15) via a rotating shaft.

9. A lifting equipment boom hook structure as claimed in claim 8, characterized in that: It also includes an anti-slip block (17), which is arranged at the opening of the hook body (16) and the upper end of which is rotatably connected to the hook body (16) via a rotating shaft, and a torsion spring is provided at the connection between the anti-slip block (17) and the hook body (16).

10. A lifting equipment boom hook structure as claimed in claim 9, characterized in that: Fixed pulleys are provided on the lower inner side of the boom end block (14) and the upper inner side of the hook base block (15), and a hoisting rope is arranged around the two sets of fixed pulleys. The hook base block (15) is connected to the boom end block (14) through the fixed pulleys and the hoisting rope.

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