Lifting lug of crane

Abstract

The invention relates to the technical field of lifting devices, and discloses a crane lifting lug which comprises a mounting assembly, the mounting assembly comprises a connecting plate, a fixed welding plate is fixedly mounted at the top of the connecting plate, an assembly thread groove is formed in the fixed welding plate, and a connecting block is fixedly mounted at the bottom of the connecting plate. A grip is pulled to be adjusted leftwards, a connecting rod is pushed to descend, due to the fact that the connecting rod is rotationally mounted in a mounting base and a mounting rod, a top limiting base can be synchronously driven to descend, and it is ensured that a tool is preliminarily clamped by a top buffering cushion and a bottom limiting base; and the limiting gear in the mounting plate is engaged with the rack, so that the friction force between the limiting assembly and the lifting lug assembly can be improved through the engagement state between the limiting gear and the rack, the relative position between the tool and the lifting lug assembly can be ensured to be more stable in the lifting process, and the situation that the tool is likely to fall off from the lifting lug assembly is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of lifting devices, and in particular to a lifting eye of a crane. Background Art

[0002] With the development of modern industrial construction, in large-scale construction projects, this type of crane lug is needed for the lifting and installation of various prefabricated components (such as steel beams, concrete prefabricated panels, etc.); However, there are still many defects in the actual use of crane lifting ears. For example, the relative stability between the tooling and the lifting ears of existing crane lifting ears is poor during the lifting process, and the tooling is prone to unstable phenomena such as shaking and offset, which poses a serious threat to the safety and accuracy of lifting. At the same time, in order to realize the functions of placing, clamping and stabilizing the lifting of the tooling, the existing crane lifting ears may require a large space to arrange complex driving devices and structural components, which not only makes the entire lifting equipment appear bloated and large, but also in some construction sites with limited space, this situation will have an adverse effect on the efficiency and progress of the construction, so it is necessary to design a crane lifting ear. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a crane lifting eye.

[0004] The present invention is implemented by the following technical scheme: a crane lifting eye, comprising a mounting assembly, the mounting assembly comprising a connecting plate, a fixed welding plate is fixedly mounted on the top of the connecting plate, an assembly thread groove is provided inside the fixed welding plate, a connecting block is fixedly mounted on the bottom of the connecting plate, and further comprising: A lifting ear assembly, the lifting ear assembly comprising a lifting buckle ring, a bottom limiting seat is arranged at the bottom of the lifting buckle ring, an adjusting ring is arranged on the outer surface of the bottom limiting seat, a first limiting rod is fixedly installed inside the lifting buckle ring, a bottom limiting seat is fixedly installed at the bottom of the lifting buckle ring, and a bottom buffer pad is arranged on the top of the bottom limiting seat; An adjustment assembly, the adjustment assembly comprising a rotating rod, a connecting rod is rotatably mounted inside the rotating rod, and a handle is fixedly mounted on the outer surface of the rotating rod; The limiting assembly comprises a top limiting seat, a supporting telescopic frame is rotatably mounted on the outer surface of the top limiting seat, and one end of the supporting telescopic frame away from the top limiting seat is rotatably mounted inside the first limiting rod.

[0005] As a further improvement of the above solution, a hanging buckle ring is fixedly installed inside the connecting block, a limiting ring is fixedly installed inside the hanging buckle ring, a buffer spring is sleeved on the outer surface of the limiting ring, and a rotating groove is opened inside the limiting ring.

[0006] Through the above technical scheme, a rotation groove is opened inside the limit ring, which provides space for the subsequent rotation of the mounting block, so that the rotating parts can move in an orderly manner, ensuring the compactness and rationality of the structure. The limit ring inside the hanging ring and the buffer spring sleeved on the outer surface of the limit ring play a dual role of limiting and buffering during the rotation of the rotating rod. The limit ring can limit the rotation range of the rotating rod to ensure that it rotates according to a predetermined trajectory; the buffer spring can absorb part of the energy when the rotating rod is subjected to a large external force or adjustment force, reduce the impact force inside the structure, thereby improving the stability and service life of the entire structure.

[0007] As a further improvement of the above solution, a mounting block is rotatably mounted inside the rotating groove, a rotating rod is fixedly mounted on the bottom of the mounting block, a limiting groove is provided on the outer surface of the rotating rod, and the limiting groove matches the limiting ring.

[0008] Through the above technical solution, the mounting block is rotatably installed inside the rotating groove. This rotatable installation method enables the mounting block and the rotating rod connected thereto to flexibly rotate within a limited space. The limiting groove on the outer surface of the rotating rod matches the limiting ring, further ensuring the accuracy of the rotation of the rotating rod. This precise matching relationship can prevent the rotating rod from shifting or shaking during the rotation process, thereby ensuring the accuracy of operations related to the lifting buckle (such as placement and clamping of tooling, etc.) and improving the working reliability of the entire crane lifting ear.

[0009] As a further improvement of the above solution, a mounting rod is fixedly installed inside the rotating rod, a connecting rod is rotatably installed on the outer surface of the mounting rod, and a sliding groove is opened inside the connecting rod.

[0010] Through the above technical scheme, the mounting rod is fixedly installed inside the rotating rod. This fixed installation method enables the mounting rod to move with the movement of the rotating rod, laying the foundation for the subsequent force transmission. The connecting rod is rotationally installed on the outer surface of the mounting rod, so that the connecting rod can flexibly rotate when subjected to the force transmitted by the mounting rod, thereby reducing obstacles in the force transmission process, improving the response speed of the entire structure to the force, and helping to improve the efficiency of tooling placement and clamping operations. A sliding groove is provided inside the connecting rod to provide space for the sliding of the mounting rod, so that the mounting rod can perform corresponding sliding actions under different operations, thereby ensuring the coordinated movement between the internal components of the entire structure.

[0011] As a further improvement of the above solution, one end of the connecting rod away from the mounting rod is sleeved on the outer surface of the mounting seat, and the mounting seat is threadedly connected and mounted on the top of the top limit seat through a mounting screw.

[0012] Through the above technical solution, one end of the connecting rod away from the mounting rod is sleeved on the outer surface of the mounting seat. This connection method forms a stable connection relationship between the connecting rod and the mounting seat. The mounting seat is installed on the top of the top limit seat through a threaded connection with the mounting screw. This threaded connection method is not only firmly connected, but also easy to install and disassemble. When the connecting rod moves up and down, it can stably drive the top limit seat to perform corresponding lifting and lowering movements through the mounting seat, thereby realizing effective linkage between multiple components and ensuring accurate adjustment of the position of the top limit seat during tooling placement and clamping operations.

[0013] As a further improvement of the above solution, a top buffer pad is provided at the bottom of the top limit seat, the top buffer pad matches the bottom buffer pad, and second limit rods are fixedly installed on both sides of the top limit seat.

[0014] Through the above technical solution, the top buffer pad arranged at the bottom of the top limit seat matches the bottom buffer pad. During the clamping process of the tooling, the buffer pad can protect the tooling to prevent the tooling from being damaged by excessive squeezing. The second limit rods are fixedly installed on both sides of the top limit seat, which enhances the structural stability of the top limit seat, provides a basis for the subsequent installation of other components, and ensures the integrity and reliability of the entire crane lifting ear structure during the working process.

[0015] As a further improvement of the above solution, a first connecting seat is rotatably mounted on the outer surface of the second limiting rod, a supporting telescopic frame is fixedly mounted on the top of the first connecting seat, and a second connecting seat is fixedly mounted on one end of the supporting telescopic frame away from the first connecting seat.

[0016] Through the above technical solution, this structural design enables the supporting telescopic frame to flexibly adjust its own length and angle through the rotation of the first connecting seat and the second connecting seat during the lifting and adjusting process of the top limit seat, always providing supporting force for the top limit seat, and ensuring the stability of the top limit seat in different positions.

[0017] As a further improvement of the above solution, a mounting plate is fixedly mounted on the inner wall of the second connecting seat, a limit gear is fixedly mounted inside the mounting plate, and the limit gear is meshed with the rack.

[0018] Through the above technical solution, the limit gear is meshed with the rack. This meshing relationship can effectively increase the friction between the limit assembly and the lifting ear assembly. During the lifting process, by adjusting this friction, the relative position between the tooling and the lifting ear assembly can be ensured to be more stable, further improving the safety and reliability of the entire crane lifting ear structure during the lifting operation.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The present invention pulls the handle so that the rotating rod rotates in the rotating groove and ensures that the gap on the outer surface of the hanging buckle ring is sufficient to place the tooling in the hanging buckle ring; when the handle is pulled to adjust to the right, the connecting rod inside the rotating rod can also drive the top limit seat to rise, ensuring that the gap between the top limit seat and the bottom limit seat can place the tooling in the bottom limit seat and the top buffer pad, thereby ensuring that the tooling can be smoothly placed in the space formed by the bottom limit seat and the top buffer pad. While ensuring that the tooling can be smoothly placed and clamped, the entire device does not require too much additional space to arrange those complicated driving devices, which saves space resources to a great extent, improves the space utilization efficiency of the device, and reduces the overall complexity of the device.

[0020] The present invention pushes the connecting rod to descend by pulling the handle to adjust to the left. Since the connecting rod is rotatably installed inside the mounting seat and the mounting rod, the top limit seat can be driven to descend synchronously to ensure that the top buffer pad and the bottom limit seat perform preliminary clamping on the tooling. Since the top limit seat is provided with a mounting plate, and the limiting gear and the rack in the mounting plate are in a meshing state, the friction force generated by this meshing state can ensure that during the lifting process, the relative position between the tooling and the lifting ear assembly is more stable, thereby avoiding dangerous situations such as shaking, deflection or falling off of the tooling during the lifting process, thereby ensuring the safety and reliability of the lifting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the lifting ear assembly of the present invention; Figure 3 It is a schematic diagram of the side structure of the lifting ear assembly of the present invention; Figure 4 This is an exploded schematic diagram of the regulating assembly structure of the present invention; Figure 5 It is a schematic diagram of the structure of the limit assembly of the present invention; Figure 6 It is a schematic diagram of the operating effect of the overall structure of the present invention.

[0022] Description of main symbols: 1. Installation assembly; 101. Connecting plate; 102. Fixed welding plate; 103. Assembly thread groove; 104. Connecting block; 2. Lifting ear assembly; 201. Lifting buckle ring; 202. Limiting ring; 203. Buffer spring; 204. Rotation groove; 205. First limiting rod; 206. Adjusting ring; 207. Rack; 208. Bottom limiting seat; 209. Bottom buffer pad; 3. Adjusting assembly; 301. Rotation rod; 30 2. Mounting block; 303. Limiting groove; 304. Mounting rod; 305. Connecting rod; 306. Slide groove; 307. Handle; 4. Limiting assembly; 401. Top limiting seat; 402. Top buffer pad; 403. Mounting screw; 404. Mounting seat; 405. Second limiting rod; 406. First connecting seat; 407. Support telescopic frame; 408. Second connecting seat; 409. Mounting plate; 410. Limiting gear. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. Example

[0024] Please combine Figure 1-Figure 6 A crane lifting eye of this embodiment includes a mounting assembly 1, wherein the mounting assembly 1 includes a connecting plate 101, a fixed welding plate 102 is fixedly mounted on the top of the connecting plate 101, an assembly thread groove 103 is provided inside the fixed welding plate 102, and a connecting block 104 is fixedly mounted on the bottom of the connecting plate 101, and further includes: The lifting ear assembly 2 comprises a lifting ring 201, a bottom limit seat 208 is arranged at the bottom of the lifting ring 201, an adjusting ring 206 is arranged on the outer surface of the bottom limit seat 208, a first limit rod 205 is fixedly installed inside the lifting ring 201, a bottom limit seat 208 is fixedly installed at the bottom of the lifting ring 201, and a bottom buffer pad 209 is arranged on the top of the bottom limit seat 208; The adjusting assembly 3 includes a rotating rod 301, a connecting rod 305 is rotatably mounted inside the rotating rod 301, and a handle 307 is fixedly mounted on the outer surface of the rotating rod 301; The limiting assembly 4 includes a top limiting seat 401 , and a supporting telescopic frame 407 is rotatably mounted on the outer surface of the top limiting seat 401 . One end of the supporting telescopic frame 407 away from the top limiting seat 401 is rotatably mounted inside the first limiting rod 205 .

[0025] A hanging ring 201 is fixedly installed inside the connecting block 104 , a limiting ring 202 is fixedly installed inside the hanging ring 201 , a buffer spring 203 is sleeved on the outer surface of the limiting ring 202 , and a rotating groove 204 is opened inside the limiting ring 202 .

[0026] A buffer spring 203 is disposed on the outer surface of the limiting ring 202. When the rotating rod 301 is adjusted, the buffer spring 203 can provide a certain buffer force to avoid damage to the entire structure due to excessive adjustment force or sudden external force impact.

[0027] A mounting block 302 is rotatably mounted inside the rotating groove 204 , a rotating rod 301 is fixedly mounted at the bottom of the mounting block 302 , and a limiting groove 303 is provided on the outer surface of the rotating rod 301 , which matches the limiting ring 202 .

[0028] A mounting rod 304 is fixedly installed inside the rotating rod 301 , a connecting rod 305 is rotatably installed on the outer surface of the mounting rod 304 , and a sliding groove 306 is provided inside the connecting rod 305 .

[0029] Since the mounting rod 304 is provided inside the rotating rod 301, when the rotating rod 301 is adjusted upward, the mounting rod 304 will first slide to the right in the slide groove 306 and press against the connecting rod 305 to drive it to rise, and the end of the connecting rod 305 away from the mounting rod 304 is rotatably mounted on the surface of the mounting seat 404, which can facilitate the rotation of the connecting rod 305. When the connecting rod 305 rises, since the mounting seat 404 is threadedly mounted on the top of the top limit seat 401 through the mounting screw 403, the top limit seat 401 can be synchronously driven to rise, ensuring that the gap between the top limit seat 401 and the bottom limit seat 208 can place the tooling in the bottom limit seat 208 and the top buffer pad 402.

[0030] One end of the connecting rod 305 away from the mounting rod 304 is sleeved on the outer surface of the mounting seat 404 , and the mounting seat 404 is threadedly connected and mounted on the top of the top limiting seat 401 through the mounting screw 403 .

[0031] When the connecting rod 305 rises, since the mounting seat 404 is threadedly installed on the top of the top limit seat 401 through the mounting screw 403, the top limit seat 401 can be driven to rise synchronously, ensuring that the gap between the top limit seat 401 and the bottom limit seat 208 can place the tooling in the bottom limit seat 208 and the top buffer pad 402. While ensuring that the tooling can be smoothly placed and clamped, there is no need for too much additional space to arrange a complex driving device.

[0032] A top buffer pad 402 is provided at the bottom of the top limiting seat 401 , and the top buffer pad 402 matches the bottom buffer pad 209 . Second limiting rods 405 are fixedly installed on both sides of the top limiting seat 401 .

[0033] A first connection seat 406 is rotatably mounted on the outer surface of the second limiting rod 405 , a supporting telescopic frame 407 is fixedly mounted on the top of the first connection seat 406 , and a second connection seat 408 is fixedly mounted on one end of the supporting telescopic frame 407 away from the first connection seat 406 .

[0034] A mounting plate 409 is fixedly mounted on the inner wall of the second connecting seat 408 . A limit gear 410 is fixedly mounted inside the mounting plate 409 . The limit gear 410 is meshed with the rack 207 .

[0035] By increasing the friction between the limit assembly 4 and the lifting ear assembly 2 through the meshing state therebetween, it can be ensured that during the lifting process, the relative position between the tooling and the lifting ear assembly 2 is more stable, and the first connecting seat 406 is rotatably installed in the second limit rod 405, and the second connecting seat 408 is rotatably installed in the first limit rod 205. By utilizing the supporting telescopic frame 407 therebetween, the supporting force on the top limit seat 401 can be always ensured when the top limit seat 401 is raised and lowered, and the supporting effect on the top limit seat 401 can be always ensured, thereby ensuring the stability and reliability of the entire structure during operation.

[0036] The implementation principle of a crane lifting ear in the embodiment of the present application is as follows: by placing the mounting assembly 1 at the installation position of the crane lifting ear, the mounting assembly 1 can be welded and installed by using the fixed welding plate 102, and the assembly thread groove 103 inside the fixed welding plate 102 can facilitate the threaded installation of the mounting assembly 1, and the connecting block 104 at the bottom of the connecting plate 101 can ensure the installation of the lifting ear assembly 2, by pulling the handle 307, the rotating rod 301 will rotate in the rotating groove 204 by using the mounting block 302, and at the same time, since the outer surface of the hanging buckle ring 201 is provided with a limiting ring 202, the rotating rod 301 will rotate under the limit of the limiting ring 202 by using the matching characteristics of the limiting groove 303 and the limiting ring 202, and the outer surface of the limiting ring 202 is provided with a buffer spring 203, when the rotating rod 301 is adjusted, the buffer spring 203 can provide a certain buffer force to avoid damage to the entire structure due to excessive adjustment force or sudden external force impact; Since the interior of the rotating rod 301 is provided with a mounting rod 304, when the rotating rod 301 is adjusted upward, the mounting rod 304 will first slide to the right in the sliding groove 306 and push against the connecting rod 305 to drive it to rise, and the end of the connecting rod 305 away from the mounting rod 304 is rotatably mounted on the surface of the mounting seat 404, which can facilitate the rotation of the connecting rod 305. When the connecting rod 305 rises, since the mounting seat 404 is threadedly mounted on the top of the top limiting seat 401 through the mounting screw 403, the top limiting seat 401 can be synchronously driven to rise, ensuring that the gap between the top limiting seat 401 and the bottom limiting seat 208 can place the tooling in the bottom limiting seat 208 and the top buffer pad 402, while ensuring that the tooling can be smoothly placed and clamped, no excessive additional space is required to arrange a complex driving device; When the tool is placed on the bottom buffer pad 209 on the top of the bottom limit seat 208, the handle 307 is pulled again to adjust to the left, and the installation rod 304 will again press against the connecting rod 305 to descend, and at this time the slide groove 306 can ensure that the rotating rod 301 returns to the bottom of the hanging buckle ring 201, ensuring that the top buffer pad 402 and the bottom limit seat 208 initially clamp the tool, which can effectively fix the tool and prevent the tool from being displaced during subsequent operations; When the adjustment component 3 is used to adjust the limit component 4, since the top limit seat 401 is provided with a mounting plate 409, and the limit gear 410 in the mounting plate 409 is in a meshing state with the rack 207 in the adjustment ring 206, the friction between the limit seat 4 and the lifting ear component 2 can be increased through the meshing state therebetween, thereby ensuring that during the lifting process, the relative position between the tooling and the lifting ear component 2 is more stable, and the first connecting seat 406 is rotatably installed in the second limit rod 405, and the second connecting seat 408 is rotatably installed in the first limit rod 205. By using the supporting telescopic frame 407 therebetween, the supporting force on the top limit seat 401 can be always ensured when it is raised and lowered, and the supporting effect on the top limit seat 401 can be always ensured, thereby ensuring the stability and reliability of the entire structure during operation.

[0037] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A crane lifting eye, comprising a mounting assembly (1), the mounting assembly (1) comprising a connecting plate (101), a fixed welding plate (102) being fixedly mounted on the top of the connecting plate (101), a mounting thread groove (103) being provided inside the fixed welding plate (102), and a connecting block (104) being fixedly mounted on the bottom of the connecting plate (101), characterized in that: Also includes: A lifting ear assembly (2), the lifting ear assembly (2) comprising a lifting buckle ring (201), a bottom limit seat (208) being arranged at the bottom of the lifting buckle ring (201), an outer surface of the bottom limit seat (208) being arranged with an adjustment ring (206), a first limit rod (205) being fixedly mounted inside the lifting buckle ring (201), a bottom limit seat (208) being fixedly mounted at the bottom of the lifting buckle ring (201), and a bottom buffer pad (209) being arranged at the top of the bottom limit seat (208); An adjustment assembly (3), the adjustment assembly (3) comprising a rotating rod (301), a connecting rod (305) being rotatably mounted inside the rotating rod (301), and a handle (307) being fixedly mounted on the outer surface of the rotating rod (301); A limit assembly (4), the limit assembly (4) comprising a top limit seat (401), a support telescopic frame (407) being rotatably mounted on the outer surface of the top limit seat (401), and an end of the support telescopic frame (407) away from the top limit seat (401) being rotatably mounted inside the first limit rod (205).

2. A crane lifting eye according to claim 1, characterized in that: A hanging buckle ring (201) is fixedly installed inside the connection block (104), a limiting ring (202) is fixedly installed inside the hanging buckle ring (201), a buffer spring (203) is sleeved on the outer surface of the limiting ring (202), and a rotation groove (204) is provided inside the limiting ring (202).

3. A crane lifting eye according to claim 2, characterized in that: A mounting block (302) is rotatably mounted inside the rotating groove (204), a rotating rod (301) is fixedly mounted at the bottom of the mounting block (302), a limiting groove (303) is provided on the outer surface of the rotating rod (301), and the limiting groove (303) matches the limiting ring (202).

4. A crane eye according to claim 1, characterized in that: A mounting rod (304) is fixedly mounted inside the rotating rod (301), a connecting rod (305) is rotatably mounted on the outer surface of the mounting rod (304), and a sliding groove (306) is provided inside the connecting rod (305).

5. A crane eye according to claim 4, characterized in that: One end of the connecting rod (305) away from the mounting rod (304) is sleeved on the outer surface of the mounting seat (404), and the mounting seat (404) is threadedly connected and mounted on the top of the top limit seat (401) via the mounting screw rod (403).

6. A crane lifting eye according to claim 1, characterized in that: A top buffer pad (402) is provided at the bottom of the top limit seat (401), the top buffer pad (402) matches the bottom buffer pad (209), and second limit rods (405) are fixedly mounted on both sides of the top limit seat (401).

7. A crane lifting eye according to claim 6, characterized in that: A first connection seat (406) is rotatably mounted on the outer surface of the second limiting rod (405), a supporting telescopic frame (407) is fixedly mounted on the top of the first connection seat (406), and a second connection seat (408) is fixedly mounted on one end of the supporting telescopic frame (407) away from the first connection seat (406).

8. A crane lifting eye according to claim 7, characterized in that: A mounting plate (409) is fixedly mounted on the inner wall of the second connecting seat (408), and a limit gear (410) is fixedly mounted inside the mounting plate (409), wherein the limit gear (410) meshes with the rack (207).

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