Steel structure I-beam hoisting device

Abstract

The invention discloses a steel structure I-beam hoisting device, and relates to the technical field of hoisting equipment. The device comprises a supporting arm, the interior of the supporting arm is hollow, clamping arms are slidably connected to the two ends of the supporting arm, a supporting plate is fixedly connected to the ends, located in the supporting arm, of the clamping arms, a rack is fixedly connected to the side wall of the supporting plate, and a gear is connected to one side of the rack in an engaged mode. Through mutual cooperation of the gear, the rack, the clamping arms, the supporting arms and other structures, an I-shaped beam can be effectively clamped and fixed, and the distance between the two clamping arms can be controlled, so that I-shaped beam wing plates with different lengths and sizes can be conveniently clamped and fixed; and through mutual cooperation of structures such as a fixing disc, a pressurizing strip and an extrusion rod, the I-shaped beam can be effectively clamped and fixed in the vertical direction, the stability of the I-shaped beam is enhanced, and the device can be matched with wing plates with different thicknesses and sizes.

Description

Technical Field

[0001] The invention relates to the technical field of lifting equipment, in particular to a lifting device for a steel structure beam. Background Art

[0002] I-beam refers to a beam with an H-shaped cross section. The upper wing plate is called the upper flange, the lower wing plate is called the lower flange, and the plate connecting the two flanges is called the web. H-beams include steel beams, reinforced concrete beams, and prestressed reinforced concrete beams. I-beams are hollow-web rods. For high-strength materials, the hollow-web type is better than the solid-web type in terms of light weight, saving materials, labor, and time. Due to its excellent structural characteristics and processability, it is widely used in modern building construction, especially in factory buildings and commercial office buildings. During the installation of I-beams, lifting equipment is often required.

[0003] When the existing lifting equipment is in use, the I-beam is generally installed and fixed by steel plates and pins, but it can only fix the I-beam of a certain fixed size and cannot be adaptively adjusted, which has certain limitations. For this reason, we propose a steel structure I-beam lifting device. Summary of the invention

[0004] The purpose of the present invention is to provide a steel structure beam lifting device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a steel structure I-beam lifting device, applied to I-beams, comprising a support arm, the interior of the support arm is set to be hollow, and both ends of the support arm are slidably connected to clamping arms, one end of the clamping arm located inside the support arm is fixedly connected to a support plate, a rack is fixedly connected to the side wall of the support plate, one side of the rack is meshed with a gear, a rotating shaft is fixedly connected to the center of the gear, and the rotating shaft is arranged through the support arm and is rotatably connected to the support arm;

[0006] A ratchet is fixedly connected to the middle of the rotating shaft, and the ratchet is located inside the support arm. A pawl is clamped on the outer surface of the ratchet, and the pawl is rotatably connected to the top of the inner wall of the support arm. A first elastic member is fixedly connected to the side wall of the pawl, and an unlocking assembly is provided on the side of the pawl away from the first elastic member.

[0007] The support arm is slidably connected to a connecting rod, the top of the connecting rod is fixedly connected to an extrusion strip, the bottom of the connecting rod is fixedly connected to a fixing plate, and the outer surface of the connecting rod is sleeved with a second elastic member;

[0008] The clamping arm is fixedly connected with an extrusion rod, and the extrusion rod acts on the extrusion strip.

[0009] Furthermore, there are two clamping arms, which are arranged in a mirror-symmetrical manner with the central axis of the support arm as the symmetry axis, and a clamping groove is formed between the clamping arm and the support arm.

[0010] Furthermore, a strip groove is formed on the top of the clamping arm, and the extrusion rod is fixed in the strip groove.

[0011] Furthermore, there are two racks, which are arranged symmetrically with the center of the gear as the center, and both racks are meshed with the gear.

[0012] Furthermore, the rotating shaft is rotatably connected to the middle position of the support arm through a bearing, and the top of the rotating shaft is fixedly connected to a turning handle.

[0013] Furthermore, one end of the first elastic member is connected to the pawl, and the other end is connected to the inner wall of the support arm.

[0014] Furthermore, the unlocking assembly includes a push rod slidably connected to one side of the support arm, and a third elastic member is sleeved on the outer surface of the push rod, and the third elastic member is located between the push rod and the support arm.

[0015] Furthermore, hanging ears are installed on the tops of both ends of the support arm.

[0016] Furthermore, guide bars are fixedly connected to both sides of the clamping arm, and guide grooves matching the guide bars are provided on the inner wall of the support arm.

[0017] Furthermore, there are two fixing plates, which are symmetrically mounted on the support arm, and a rubber layer is provided at the bottom of the fixing plates.

[0018] The present invention has at least the following beneficial effects:

[0019] 1. The present invention can effectively clamp and fix the I-beam through the mutual cooperation of the gears, racks, clamping arms, support arms and other structures, and can control the distance between the two clamping arms, so as to facilitate the clamping and fixing of the I-beam flanges of different lengths.

[0020] 2. The present invention can effectively clamp and fix the I-beam in the vertical direction through the cooperation of the fixed plate, pressure strip, extrusion rod and other structures, thereby enhancing the stability of the I-beam and adapting to wing plates of different thicknesses, further improving the practicality of the device.

[0021] 3. The present invention can lock the gear after the clamping arm clamps the I-beam through the cooperation of the unlocking assembly, ratchet, pawl and other structures to prevent it from accidentally rotating, causing the two clamping arms to loosen and cause the I-beam to fall.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention from a first viewing angle;

[0024] Figure 2 It is a stereoscopic schematic diagram of the overall structure of the present invention from a second viewing angle;

[0025] Figure 3 It is a three-dimensional schematic diagram of the clamping arm structure of the present invention from a first viewing angle;

[0026] Figure 4 is a perspective schematic diagram of the clamping arm structure of the present invention from a second viewing angle;

[0027] Figure 5 It is a three-dimensional schematic diagram of the gear structure of the present invention;

[0028] Figure 6 It is a three-dimensional schematic diagram of the fixed disk structure of the present invention.

[0029] Reference numerals:

[0030] 1. Support arm; 2. Clamping arm; 3. Support plate; 4. Rack; 5. Gear; 6. Rotating shaft; 7. Ratchet; 8. Pawl; 9. First elastic member; 10. Unlocking assembly; 101. Push rod; 102. Third elastic member; 11. Connecting rod; 12. Extrusion strip; 13. Fixed plate; 14. Second elastic member; 15. Extrusion rod; 16. Slot; 17. Strip groove; 18. Turn handle; 19. Hanging ear; 20. Guide strip. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0032] See also Figure 1-Figure 6 The present invention provides a technical solution: a steel structure I-beam lifting device, applied to I-beams, comprising a support arm 1, the interior of the support arm 1 is set to be hollow, and both ends of the support arm 1 are slidably connected with clamping arms 2, one end of the clamping arm 2 located inside the support arm 1 is fixedly connected with a support plate 3, a rack 4 is fixedly connected to the side wall of the support plate 3, one side of the rack 4 is meshed with a gear 5, a rotating shaft 6 is fixedly connected to the center of the gear 5, and the rotating shaft 6 is arranged through the support arm 1 and is rotatably connected to the support arm 1;

[0033] A ratchet 7 is fixedly connected to the middle of the rotating shaft 6, and the ratchet 7 is located inside the supporting arm 1. A pawl 8 is clamped on the outer surface of the ratchet 7, and the pawl 8 is rotatably connected to the top of the inner wall of the supporting arm 1. A first elastic member 9 is fixedly connected to the side wall of the pawl 8, and an unlocking assembly 10 is provided on the side of the pawl 8 away from the first elastic member 9;

[0034] A connecting rod 11 is slidably connected inside the support arm 1, an extrusion strip 12 is fixedly connected to the top of the connecting rod 11, a fixing plate 13 is fixedly connected to the bottom of the connecting rod 11, and a second elastic member 14 is sleeved on the outer surface of the connecting rod 11;

[0035] A squeezing rod 15 is fixedly connected to the clamping arm 2 , and the squeezing rod 15 acts on the squeezing strip 12 .

[0036] According to the technical solution of this embodiment, there are two clamping arms 2, and the two clamping arms 2 are arranged in a mirror-symmetrical manner with the central axis of the support arm 1 as the symmetry axis, and a slot 16 is formed between the clamping arm 2 and the support arm 1. The clamping arms 2 at both ends can clamp and fix the I-beam from both sides of the wing plate of the I-beam, and at this time the wing plate is stuck in the slot 16.

[0037] According to the technical solution of this embodiment, a strip groove 17 is formed on the top of the clamping arm 2 , and the extrusion rod 15 is fixed in the strip groove 17 .

[0038] With regard to the technical solution of this embodiment, there are two racks 4, which are symmetrically arranged with the center of the gear 5 as the center, and the two racks 4 are meshed with the gear 5. The rotating shaft 6 is rotatably connected to the middle position of the support arm 1 through a bearing, and a handle 18 is fixedly connected to the top of the rotating shaft 6. Turning the handle 18 drives the rotating shaft 6 to rotate, and the rotating shaft 6 drives the gear 5 to rotate accordingly. When the gear 5 rotates, the meshing relationship between the gear 5 and the rack 4 can be used to drive the two racks 4 to move outward or inward at the same time, thereby driving the two clamping arms 2 to move accordingly. When the two clamping arms 2 move inward at the same time, the I-beam wing plate can be clamped and fixed, and the distance between the two clamping arms 2 can be controlled by adjusting the number of turns of the gear 5, thereby facilitating the clamping and fixing of I-beam wing plates of different lengths.

[0039] Furthermore, when the rotating shaft 6 rotates, the ratchet 7 will also be driven to rotate. When the gear 5 rotates forward and drives the rack 4 to move inward at the same time, the pawl 8 will not restrict the ratchet 7. When the gear 5 rotates reversely, the pawl 8 will lock the ratchet 7. At this time, the ratchet 8 can be squeezed by the unlocking component 10 to deflect it and disengage it from the ratchet 7, so that the ratchet 7 can be unlocked, allowing the gear 5 to rotate reversely, and one end of the first elastic member 9 is connected to the pawl 8, and the other end is connected to the inner wall of the support arm 1. The elastic potential energy of the first elastic member 9 can be used to drive the pawl 8 to reset.

[0040] It should be noted that the unlocking assembly 10 includes a push rod 101 slidably connected to one side of the support arm 1, and the outer surface of the push rod 101 is sleeved with a third elastic member 102. The third elastic member 102 is located between the push rod 101 and the support arm 1, and is mainly used to drive the push rod 101 to reset, and the end of the push rod 101 close to the pawl 8 is set to a hemispherical shape.

[0041] According to the technical solution of this embodiment, hooks 19 are installed at the tops of both ends of the support arm 1, and the hooks 19 are provided to facilitate lifting with external cables.

[0042] According to the technical solution of this embodiment, guide bars 20 are fixedly connected to both sides of the clamping arm 2, and a guide groove compatible with the guide bar 20 is opened on the inner wall of the support arm 1. The set guide bar 20 and guide groove are used to facilitate guiding and limiting the clamping arm 2 when it moves, thereby enhancing the connection strength and stability between the enhancer and the support arm 1.

[0043] According to the technical solution of this embodiment, there are two fixing plates 13, and the two fixing plates 13 are symmetrically installed on the support arm 1, and a rubber layer is provided at the bottom of the fixing plate 13. When the two clamping arms 2 move inward at the same time, the extrusion rod 15 will be driven to move along the extrusion strip 12 and squeeze the extrusion strip 12. At this time, the extrusion strip 12 will drive the connecting rod 11 and the fixing plate 13 to move downward, so as to squeeze the side wall of the wing plate. At this time, the two clamping arms 2 will apply an upward force to the wing plate of the I-beam, and the two fixing plates 13 will apply a downward force to the wing plate of the I-beam. At this time, the I-beam can be effectively clamped and fixed in the vertical direction, thereby enhancing the stability of the I-beam, and can also adapt to wing plates of different thicknesses, further improving the practicability of the device, and then the I-beam can be lifted.

[0044] It should be noted that, since the rubber layer has a certain elasticity, the provision of the rubber layer can not only enhance the friction between the fixing plate 13 and the wing plate and improve the fixing effect, but also provide a certain elastic space in the vertical direction, improve a certain degree of flexibility and avoid interference.

[0045] The use principle and process of the present invention are as follows: first, the two clamping arms 2 are used to clamp the I-beam wing plate in the clamping groove 16, and then the handle 18 is turned to drive the rotating shaft 6 to rotate, and the rotating shaft 6 will drive the gear 5 to rotate accordingly. When the gear 5 rotates, the meshing relationship between the gear 5 and the rack 4 can be used to drive the two racks 4 to move inward at the same time, thereby driving the two clamping arms 2 to move accordingly. When the two clamping arms 2 move inward at the same time, the I-beam wing plate can be clamped and fixed, and by adjusting the number of turns of the gear 5, the distance between the two clamping arms 2 can also be controlled, so as to facilitate the clamping and fixing of I-beam wing plates of different lengths. When the two clamping arms 2 move inward at the same time, they will also drive the extrusion rod 15 to move along the extrusion strip 12 and extrude the extrusion strip 12. At this time, the extrusion strip 12 will drive The connecting rod 11 and the fixing plate 13 move downward and squeeze the side wall of the wing plate at the same time. At this time, the two clamping arms 2 will exert an upward force on the wing plate of the I-beam, and the two fixing plates 13 will exert a downward force on the wing plate of the I-beam. Therefore, the I-beam can be effectively clamped and fixed in the vertical direction, which is convenient for enhancing the stability of the I-beam. Then the I-beam can be hoisted. When it is hoisted to the designated position for unloading, first push the top rod 101 to squeeze the pawl 8, deflect it and disengage it from the ratchet 7, so that the ratchet 7 can be unlocked. At this time, reversely rotate the handle 18 to drive the rotating shaft 6 and the gear 5 to rotate accordingly, so that the two clamping arms 2 can move outward. At the same time, the two fixing plates 13 will also be reset under the action of the second elastic member 14, thereby releasing the clamping and fixing state of the I-beam.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. When an element is referred to as being "assembled on", "installed on", "fixed on" or "set on" another element, it can be directly on the other element or there can also be a centered element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a centered element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and are not intended to be the only implementation method.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A steel structure I-beam lifting device, applied to an I-beam, comprising a support arm (1), It is characterized in that The interior of the support arm (1) is arranged to be hollow, and both ends of the support arm (1) are slidably connected to the clamping arms (2), one end of the clamping arm (2) located inside the support arm (1) is fixedly connected to the support plate (3), a rack (4) is fixedly connected to the side wall of the support plate (3), one side of the rack (4) is meshingly connected to a gear (5), a rotating shaft (6) is fixedly connected to the center position of the gear (5), and the rotating shaft (6) passes through the support arm (1) and is rotatably connected to the support arm (1); A ratchet (7) is fixedly connected to the middle of the rotating shaft (6), and the ratchet (7) is located inside the support arm (1); a pawl (8) is clamped on the outer surface of the ratchet (7), and the pawl (8) is rotatably connected to the top of the inner wall of the support arm (1); a first elastic member (9) is fixedly connected to the side wall of the pawl (8), and an unlocking component (10) is provided on the side of the pawl (8) away from the first elastic member (9); The support arm (1) is slidably connected to a connecting rod (11) inside, the top of the connecting rod (11) is fixedly connected to an extrusion strip (12), the bottom of the connecting rod (11) is fixedly connected to a fixing plate (13), and the outer surface of the connecting rod (11) is sleeved with a second elastic member (14); The clamping arm (2) is fixedly connected with an extrusion rod (15), and the extrusion rod (15) acts on the extrusion strip (12).

2. A steel structure beam lifting device according to claim 1, Features: The number of the clamping arms (2) is two, and the two clamping arms (2) are arranged in a mirror-symmetrical manner with the central axis of the support arm (1) as the symmetry axis, and a clamping groove (16) is formed between the clamping arm (2) and the support arm (1).

3. A steel structure beam lifting device according to claim 2, Features: The top of the clamping arm (2) is provided with a strip groove (17), and the extrusion rod (15) is fixed in the strip groove (17).

4. A steel structure beam lifting device according to claim 2, Features: The number of the racks (4) is two, and the two racks (4) are arranged symmetrically with the center of the gear (5) as the center, and the two racks (4) are meshed with the gear (5).

5. A steel structure beam lifting device according to claim 4, Features: The rotating shaft (6) is rotatably connected to the middle position of the support arm (1) via a bearing, and a turning handle (18) is fixedly connected to the top of the rotating shaft (6).

6. A steel structure beam lifting device according to claim 5, Features: One end of the first elastic member (9) is connected to the pawl (8), and the other end is connected to the inner wall of the support arm (1).

7. A steel structure beam lifting device according to claim 5, Features: The unlocking assembly (10) comprises a push rod (101) slidably connected to one side of the support arm (1), a third elastic member (102) is sleeved on the outer surface of the push rod (101), and the third elastic member (102) is located between the push rod (101) and the support arm (1).

8. A steel structure beam lifting device according to claim 7, Features: The tops of both ends of the support arm (1) are equipped with hanging ears (19).

9. A steel structure beam lifting device according to claim 8, Features: Both sides of the clamping arm (2) are fixedly connected with guide strips (20), and the inner wall of the support arm (1) is provided with a guide groove matched with the guide strip (20).

10. A steel structure beam lifting device according to claim 9, Features: There are two fixing plates (13), which are symmetrically mounted on the support arm (1) and have a rubber layer disposed at the bottom of the fixing plates (13).

Images