Anti-shaking safety cantilever crane
The lifting mechanism drives the hook to move up and down by lifting the lifting rod assembly, which solves the problem of material swaying during the lifting process and achieves a more rigid and safer lifting process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN LEKAI NEW MATERIAL CO LTD
- Filing Date
- 2025-02-20
- Publication Date
- 2026-05-01
AI Technical Summary
Existing crane booms are prone to material swaying during lifting and stopping, leading to collisions and safety hazards.
The lifting rod assembly with a lifting mechanism improves rigidity and prevents material swaying by driving the hook to move up and down, replacing the traditional electric hoist and steel cable lifting method.
It effectively prevents materials from swaying during and after lifting, improving safety and preventing economic losses.
Smart Images
Figure CN224185731U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of hoisting equipment technology, and more specifically, it relates to a sway-resistant safety cantilever crane. Background Technology
[0002] A cantilever crane is an industrial component, belonging to the category of light-duty cranes. It consists of a column, a slewing arm, a slewing drive device, and an electric hoist. It is characterized by its light weight, large span, large lifting capacity, and economic durability.
[0003] The existing lifting devices for suspended booms all use electric hoists, which use steel cables to pull and lift materials. However, the use of steel cables has its drawbacks. For example, when the object is first lifted and when it stops moving after the lifting is completed, the object will swing, which will inevitably cause collisions to the lifted object, resulting in unnecessary economic losses. In severe cases, it may even have an adverse impact on the safety of the workers. Utility Model Content
[0004] The purpose of this utility model is to provide a sway-proof safety cantilever crane to prevent materials from swaying during the hoisting process.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A sway-resistant safety cantilever crane is provided, comprising a base, a column, a cantilever, a sliding member, and a lifting mechanism. The base is fixedly installed on a predetermined ground surface; the column is mounted on the base and is vertically arranged; the cantilever is horizontally arranged and positioned near the top of the column; the sliding member is slidably arranged along the extension direction of the cantilever; the lifting mechanism is mounted on the sliding member and has a lifting rod assembly. The bottom end of the lifting rod assembly is provided with a hook, and the lifting rod assembly is used to drive the hook to rise or fall.
[0006] In one possible implementation, the lifting rod assembly includes two drive rods, the bottom ends of which are hinged to each other, and the other end of each drive rod is slidably disposed on the sliding member.
[0007] In one possible implementation, the slider is rod-shaped, horizontally arranged, and perpendicular to the cantilever. The two ends of the slider are symmetrically arranged on both sides of the cantilever. The top end of one of the drive rods is slidably disposed on the slider on the left side of the cantilever, and the top end of the other drive rod is slidably disposed on the slider on the right side of the cantilever.
[0008] In one possible implementation, two sliding blocks are slidably provided on the slider, and the two sliding blocks are respectively disposed on both sides of the cantilever. The sliding blocks correspond one-to-one with the drive rods. Two mounting plates are spaced apart at the bottom of the sliding blocks, and a hinge shaft is provided between the mounting plates. The top of the drive rod is provided with a hinge hole, and the hinge shaft is inserted into the hinge hole of the corresponding drive rod.
[0009] In one possible implementation, the slider is provided with a groove, the groove having a T-shaped cross-section, and the top of the slider is provided with a slider whose shape is adapted to the groove, the slider being inserted into the groove.
[0010] In one possible implementation, the bottom of the slider is provided with a first motor, which is a dual-output motor. The two ends of the slider are provided with vertically downward extending fixing rods. A first threaded rod is provided between the power output end of the first motor and the fixing plate. The slider is provided with a first threaded hole, and the first threaded rod is screwed into the first threaded hole.
[0011] In one possible implementation, the slider is provided with a first insertion hole; the cantilever is provided with a second insertion hole, the second insertion hole being a strip-shaped hole, a portion of the slider is inserted into the second insertion hole, and the portion of the cantilever below the second insertion hole is inserted into the first insertion hole.
[0012] In one possible implementation, the second threaded rod is rotatably disposed within the second insertion hole, a second motor is provided at the top of the cantilever, one end of the second threaded rod is connected to the power output end of the second motor, the sliding member is provided with a second threaded hole, and the second threaded rod is screwed into the second threaded hole.
[0013] In one possible implementation, the top of the column extends above the cantilever, and a reinforcing rod connects the top of the column to the end of the cantilever furthest from the column.
[0014] In one possible implementation, the base has a rotating component at its top, and the column is located on top of the rotating component, the rotating component being used to drive the column to rotate.
[0015] The beneficial effects of the anti-sway safety cantilever crane provided by this utility model are as follows: Compared with the prior art, this utility model sets up a lifting rod assembly of the lifting mechanism, and drives the hook to move up and down with the lifting rod assembly. Compared with the prior art of using electric hoists and steel cables to lift materials, the lifting rod assembly has higher rigidity and can effectively prevent the material from swaying at the beginning and end of the lifting. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 A schematic diagram of the anti-sway safety cantilever crane during operation, provided for an embodiment of this utility model;
[0018] Figure 2 for Figure 1 Enlarged view of part A.
[0019] The labels for the attached figures are as follows:
[0020] 1. Base; 2. Column; 3. Cantilever; 4. Sliding component; 5. Lifting mechanism;
[0021] 101. Rotating component;
[0022] 201. Reinforcing bar;
[0023] 301. Second insertion hole; 302. Second threaded rod; 303. Second motor;
[0024] 401. Slide groove;
[0025] 501. Lifting rod assembly; 502. Drive rod; 503. Sliding block; 504. Mounting plate; 505. Hinge shaft; 506. First motor; 507. First threaded rod. Detailed Implementation
[0026] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0027] It should be further noted that the accompanying drawings and embodiments of this utility model mainly describe the concept of this utility model. Based on this concept, some specific forms and settings of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of this utility model, they can implement the above-mentioned specific forms and settings in a well-known manner.
[0028] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0029] The terms “length”, “width”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, and “outer” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0030] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified.
[0031] The anti-sway safety cantilever crane provided by this utility model will now be described.
[0032] Please refer to the following: Figure 1 and Figure 2 The anti-sway safety cantilever crane includes a base 1, a column 2, a cantilever 3, a sliding member 4, and a lifting mechanism 5. The base 1 is fixedly set on a preset ground. The column 2 is set on the base 1 and is arranged vertically. The cantilever 3 is arranged horizontally and is located near the top of the column 2. The sliding member 4 is arranged to slide along the extension direction of the cantilever 3. The lifting mechanism 5 is set on the sliding member 4 and has a lifting rod assembly 501. The bottom end of the lifting rod assembly 501 is provided with a hook. The lifting rod assembly 501 is used to drive the hook to rise or fall.
[0033] The beneficial effects of the anti-sway safety cantilever crane provided in this embodiment are as follows: Compared with the prior art, the anti-sway safety cantilever crane provided in this embodiment uses the lifting rod assembly 501 of the lifting mechanism 5 to drive the hook to move up and down. Compared with the prior art of using electric hoists and steel cables to lift materials, the lifting rod assembly 501 has higher rigidity and can effectively prevent the material from swaying at the beginning and end of the lifting process.
[0034] In this embodiment, the lifting rod assembly 501 includes two drive rods 502, the bottom ends of which are hinged together, and the other end of each drive rod 502 is slidably mounted on the sliding member 4. By sliding the top ends of the drive rods 502, the distance between the top ends of the two drive rods 502 changes. Since the bottom ends of the two drive rods 502 are hinged together, the height of the bottom ends of the drive rods 502 is changed, thereby enabling the lifting and placement of materials.
[0035] Specifically, the slider 4 is rod-shaped, horizontally arranged, and perpendicular to the cantilever 3. The two ends of the slider 4 are symmetrically positioned on both sides of the cantilever 3. The top end of one drive rod 502 slides on the slider 4 on the left side of the cantilever 3, and the top end of the other drive rod 502 slides on the slider 4 on the right side of the cantilever 3. Since the hook is at its lowest height when the drive rod 502 is vertical, it should be positioned near the ground, making the length of the drive rod 502 slightly less than the distance from the cantilever 3 to the ground. When the drive rod 502 is horizontal, the hook is at its highest point, thus requiring a certain sliding distance on the slider 4. Therefore, the slider 4 is chosen to be rod-shaped.
[0036] In addition, two sliding blocks 503 are slidably mounted on the sliding member 4, with the two sliding blocks 503 respectively located on both sides of the cantilever 3. Each sliding block 503 corresponds to a drive rod 502. Two mounting plates 504 are spaced apart at the bottom of each sliding block 503, and a hinge shaft 505 is provided between the mounting plates 504. A hinge hole is provided at the top of each drive rod 502, and the hinge shaft 505 is inserted into the corresponding hinge hole of the drive rod 502. The sliding blocks 503 facilitate the sliding of the top of the drive rod 502 on the sliding member 4. Furthermore, since the angle between the tops of the two drive rods 502 and the sliding blocks 503 changes as the distance between their tops changes, the mounting plates 504, hinge shafts 505, and hinge holes are designed to allow the angle between the top of the drive rod 502 and the sliding blocks 503 to be arbitrarily changed.
[0037] It is worth noting that the slider 4 is provided with a groove 401, the cross-section of which is T-shaped. The top of the slider block 503 is provided with a slider whose shape matches the groove 401, and the slider is inserted into the groove 401. The groove 401 and the slider ensure that the slider block 503 does not detach from the slider 4 when it slides on the slider 4. Simultaneously, the cooperation between the groove 401 and the slider also guides the sliding of the slider block 503.
[0038] In this embodiment, a first motor 506 is provided at the bottom of the sliding member 4. The first motor 506 is a dual-output motor. Vertically downward extending fixing rods are provided at both ends of the sliding member 4. A first threaded rod 507 is provided between the power output end of the first motor 506 and the fixing plate. A first threaded hole is provided on the sliding block 503, and the first threaded rod 507 is screwed into the first threaded hole. The first motor 506 facilitates driving the sliding block 503 to slide on the sliding member 4, thereby driving the material to rise or fall.
[0039] As a preferred technical solution, the slider 4 is provided with a first insertion hole, and the cantilever 3 is provided with a second insertion hole 301. The second insertion hole 301 is a strip-shaped hole. A portion of the slider 4 is inserted into the second insertion hole 301, and the lower portion of the cantilever 3 is inserted into the first insertion hole. The second insertion hole 301 facilitates the connection between the slider 4 and the cantilever 3, and also guides the sliding of the slider 4. The first insertion hole guides the movement of the slider 4, allowing it to maintain the same posture when sliding through the second sliding hole.
[0040] like Figure 1 As shown, the second threaded rod 302 is rotatably mounted inside the second insertion hole 301. A second motor 303 is located at the top of the cantilever 3. One end of the second threaded rod 302 is connected to the power output end of the second motor 303. The sliding member 4 has a second threaded hole, and the second threaded rod 302 is screwed into the second threaded hole. The arrangement of the second motor 303 and the second threaded rod 302 facilitates the sliding member 4 to slide along the cantilever 3, thereby facilitating the adjustment of the position of the lifted material.
[0041] To further strengthen the cantilever 3, in case the cantilever 3 breaks when it is placed to lift materials, the top of the column 2 extends above the cantilever 3, and a reinforcing rod 201 is connected between the top of the column 2 and the end of the cantilever 3 away from the column 2.
[0042] Finally, a rotating component 101 is provided on the top of the base 1, and the column 2 is located on the top of the rotating component 101. The rotating component 101 is used to drive the column 2 to rotate. The rotating component 101 facilitates the rotation of the column 2, which in turn drives the cantilever 3 to rotate around the column 2 as an axis, thereby hoisting the material to the preset position.
[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A sway-resistant safety cantilever crane, characterized in that, include: The base (1) is fixedly set on the preset ground; A column (2) is provided on the base (1), and the column (2) is arranged vertically; The cantilever (3) is arranged horizontally and is located near the top of the column (2); The slider (4) is slidably arranged along the extension direction of the cantilever (3); A lifting mechanism (5) is provided on the sliding member (4). The lifting mechanism (5) has a lifting rod assembly (501). The bottom end of the lifting rod assembly (501) is provided with a hook. The lifting rod assembly (501) is used to drive the hook to rise or fall.
2. The anti-sway safety cantilever crane as described in claim 1, characterized in that: The lifting rod assembly (501) includes two drive rods (502), the bottom ends of the two drive rods (502) are hinged to each other, and the other end of the drive rod (502) is slidably disposed on the sliding member (4).
3. The anti-sway safety cantilever crane as described in claim 2, characterized in that: The sliding member (4) is rod-shaped, horizontally arranged, and perpendicular to the cantilever (3). The two ends of the sliding member (4) are symmetrically arranged on both sides of the cantilever (3). The top end of one of the driving rods (502) is slidably arranged on the sliding member (4) on the left side of the cantilever (3), and the top end of the other driving rod (502) is slidably arranged on the sliding member (4) on the right side of the cantilever (3).
4. The anti-sway safety cantilever crane as described in claim 3, characterized in that: Two sliding blocks (503) are slidably provided on the sliding member (4). The two sliding blocks (503) are respectively located on both sides of the cantilever (3). The sliding blocks (503) correspond one-to-one with the driving rods (502). Two mounting plates (504) are spaced apart at the bottom of the sliding blocks (503). A hinge shaft (505) is provided between the mounting plates (504). A hinge hole is provided at the top of the driving rods (502). The hinge shaft (505) is inserted into the hinge hole of the corresponding driving rod (502).
5. The anti-sway safety cantilever crane as described in claim 4, characterized in that: The sliding member (4) is provided with a groove (401), the cross-section of the groove (401) is T-shaped, the top of the sliding block (503) is provided with a slider, the shape of the slider is adapted to the groove (401), and the slider is inserted into the groove (401).
6. The anti-sway safety cantilever crane as described in claim 5, characterized in that: The bottom of the sliding member (4) is provided with a first motor (506), which is a dual-output motor. The two ends of the sliding member (4) are provided with vertically downward extending fixing rods. A first threaded rod (507) is provided between the power output end of the first motor (506) and the fixing plate. The sliding block (503) is provided with a first threaded hole, and the first threaded rod (507) is screwed into the first threaded hole.
7. The anti-sway safety cantilever crane as described in claim 6, characterized in that: The sliding member (4) is provided with a first insertion hole; The cantilever (3) is provided with a second insertion hole (301), which is a strip-shaped hole. Part of the sliding member (4) is inserted into the second insertion hole (301), and the lower part of the cantilever (3) is inserted into the first insertion hole.
8. The anti-sway safety cantilever crane as described in claim 7, characterized in that: The second threaded rod (302) is rotatably disposed in the second insertion hole (301). The top end of the cantilever (3) is provided with a second motor (303). One end of the second threaded rod (302) is connected to the power output end of the second motor (303). The sliding member (4) is provided with a second threaded hole. The second threaded rod (302) is screwed into the second threaded hole.
9. The anti-sway safety cantilever crane as described in claim 8, characterized in that: The top of the column (2) extends above the cantilever (3), and a reinforcing rod (201) is connected between the top of the column (2) and the end of the cantilever (3) away from the column (2).
10. The anti-sway safety cantilever crane as described in claim 9, characterized in that: The base (1) has a rotating component (101) on top, and the column (2) is located on top of the rotating component (101). The rotating component (101) is used to drive the column (2) to rotate.