Portal crane with windproof fixing structure
By installing lifting rods and electric push cylinders on the gantry crane to adjust the spacing of the top beams, and combining the design of side support beams and connecting plates, the problem of swaying of the lifting device in windy weather was solved, and stable lifting of the crane was achieved in severe weather.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNFENG (DONGTAI) PRECISION PARTS CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional gantry cranes are prone to swaying during windy weather, which affects safety and production efficiency.
A gantry crane with a windproof fixing structure is used. The distance between the top beam and the ground is adjusted by the lifting rod and electric push cylinder inside the installation cylinder. Combined with the fixing design of the side support beam and connecting plate, the lifting device is ensured to remain stable in strong winds.
It effectively reduces the swaying of lifting equipment in strong winds, ensuring the stability and safety of the lifting process and improving production efficiency.
Smart Images

Figure CN224212307U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gantry crane technology, specifically a gantry crane with a windproof fixing structure. Background Technology
[0002] Gantry cranes enable the hoisting mechanism to reach any position in the work area through the coordinated action of the trolley traveling mechanism and the auxiliary trolley traveling mechanism. The hoisting mechanism, based on the weight of the goods and the required hoisting height, is powered by an electric motor. After being reduced in speed and torque by a reducer, it drives the drum to rotate. The hook is raised and lowered by the transmission of wire rope and pulley block, thereby completing the lifting, handling and placement of goods.
[0003] Traditional gantry cranes are mostly used in ports or docks for lifting and transporting large equipment. This requires the cranes to operate in relatively harsh environments, such as ports or docks where strong winds are common. Traditional cranes have a large gap between the lifting device and the ground, so in strong winds, the equipment can sway significantly, affecting safety and even disrupting the crane's operation, potentially causing downtime.
[0004] A search revealed Chinese Patent Publication No. CN202323366393.1, which discloses a novel windproof crane. The crane includes a gantry crane frame composed of a main beam and outriggers installed on both sides. Two fixed electric hoists are mounted on the main beam, each hoist including a rope and a lifting device. The outriggers are characterized by having a windproof device, comprising a groove on the outrigger, a cross plate, and a connecting rod. The rope passes through the cross plate, and a protective shell is installed below the cross plate, with a protective cavity. A first slider and a second slider are slidably mounted in the groove. The cross plate and the first slider are fixedly connected. One end of the connecting rod is hinged to the second slider, and the other end of the connecting rod is hinged to a support block. The cross plate has a moving groove, and the support block is slidably mounted in the moving groove. A first spring is installed between the support block and the wall of the moving groove. A support assembly is installed at the bottom of the groove.
[0005] Although the device in the aforementioned patent effectively reduces the swaying of the rope through the windproof device, the rope is not as stable as it is in a windless state during operation. When the lifting device sways slightly, the workpiece at the bottom will sway significantly. This will generate a large force between the workpiece and the clamp at the bottom of the lifting device, causing the workpiece to separate from the lifting device and affecting production efficiency. Utility Model Content
[0006] The purpose of the present utility model is to provide a gantry crane with a windproof fixing structure. In this device, the lifting rod is installed inside the installation cylinder and fixed by bolts, so as to effectively adjust the distance between the top beam and the ground, thereby meeting different working states of the crane, and solving the problems in the above-mentioned background technology.
[0007] To achieve the above purpose, the present utility model provides the following technical solutions:
[0008] A gantry crane with a windproof fixing structure includes two sets of side support beams with the same structure, and each set of the side support beams includes two; and one ends of the two side support beams are detachably installed through bolts and a matching component; the matching component is arranged in a "soil" shape; a support foot is arranged at the bottom of the side support beam; the support foot is fitted and installed with the ground beam; the ground beam is预埋 (should be "embedded") with the ground.
[0009] One sides of the two side support beams are fixedly installed through a connecting rod and bolts; the two side support beams and the ground beam are arranged in a triangle.
[0010] As a further technical solution of the present utility model, the matching component includes an installation cylinder; through holes for bolts to penetrate are opened on the installation cylinder; a first connecting plate and a second connecting plate are fixedly installed on the outer wall of the installation cylinder; an inner lining plate is arranged inside the second connecting plate; the inner lining plate is fixedly installed on the surface of the side support beam.
[0011] As a further technical solution of the present utility model, a lifting rod is movably installed inside the installation cylinder; round holes matching the through holes are opened on the surface of the lifting rod, there are multiple such round holes, and the distance between adjacent two round holes is the same.
[0012] As a further technical solution of the present utility model, the end of the lifting rod far from the ground beam is detachably installed with the top beam through bolts; an ear plate is integrally arranged on the inner side surface of the lifting rod and is fixedly installed with the connecting plate through bolts.
[0013] As a further technical solution of the present utility model, the connecting plate is fixedly installed at the end of the push rod of the electric push cylinder, and the end of the electric push cylinder far from the connecting plate is fitted and installed with a T-shaped block through bolts.
[0014] As a further technical solution of the present utility model, the T-shaped block is fixedly installed on the L-shaped fixing frame; the L-shaped fixing frame is fixedly installed on the side of the second connecting plate far from the inner lining plate through bolts.
[0015] Compared with the prior art, the beneficial effects of the present utility model are:
[0016] In this invention, the lifting device is installed on the top beam during use. The top beam can be raised and lowered via an electric cylinder and a lifting rod, thus meeting the application needs of different working scenarios. Two sets of side support beams effectively ensure the safety and stability of the cooperating components. In windy weather, the electric cylinder drives the connecting plate to adjust the lifting rod up and down along the mounting cylinder, effectively adjusting the distance between the top beam and the ground. This lowers the lifting device on the top beam, reducing the impact of strong winds and minimizing swaying, thus ensuring stability during transport. During installation, the two sets of side support beams are fixedly installed with their corresponding cooperating components, and then reinforced by the inner lining plate of the second connecting plate, ensuring the support's firmness and allowing the crane on the top beam to be used for lifting various equipment. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0018] Figure 2 This utility model Figure 1 Another perspective structural diagram.
[0019] Figure 3 This utility model Figure 1 A schematic diagram of the three-dimensional structure of the components in the diagram.
[0020] Figure 4 This utility model Figure 1 Enlarged view of the local structure at point A in the middle.
[0021] Figure 5 This utility model Figure 2 Enlarged view of the local structure at point B in the middle.
[0022] In the diagram: 1-Ground beam, 2-Support leg, 3-Side support beam, 4-Connecting rod, 5-Matching component, 50-Mounting cylinder, 51-First connecting plate, 52-Second connecting plate, 53-Inner lining plate, 54-Through hole, 6-Lifting rod, 7-Top beam, 8-L-shaped fixing frame, 9-T-block, 10-Electric push cylinder, 11-Connecting plate. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-5 , in the embodiment of the present utility model, a gantry crane with a windproof fixing structure includes two sets of side support beams 3 with the same structure. Each set of the side support beams 3 includes two; and one ends of the two side support beams 3 are detachably installed with a matching component 5 through bolts; the matching component 5 is arranged in a "soil" shape; a support foot 2 is arranged at the bottom of the side support beam 3; the support foot 2 is fitted and installed with a ground beam 1; the ground beam 1 is预埋 (should be "embedded" in English) in the ground;
[0025] One sides of the two side support beams 3 are fixedly installed with bolts through a connecting rod 4; the two side support beams 3 and the ground beam 1 are arranged in a triangle.
[0026] By adopting the above technical solution, during use, a lifting device is fitted and installed on the top beam 7. The top beam 7 can achieve the lifting effect through an electric push cylinder 10 and a lifting rod 6, so as to meet the application in different scenarios during work. The safety and stability of the matching component 5 are effectively ensured by the two sets of side support beams 3;
[0027] In this embodiment, a lifting rod 6 is movably installed inside the installation cylinder 50; circular holes matching with through holes 54 are formed on the surface of the lifting rod 6. There are multiple such circular holes, and the distance between adjacent two circular holes is the same;
[0028] In this embodiment, one end of the lifting rod 6 far from the ground beam 1 is detachably installed with the top beam 7 through bolts; an ear plate is integrally arranged on the inner side surface of the lifting rod 6 and is fixedly installed with a connecting plate 11 through bolts;
[0029] By adopting the above technical solution, when in use on a windy day, the electric push cylinder 10 drives the connecting plate 11 to realize the up and down adjustment of the lifting rod 6 along the installation cylinder 50, so as to effectively adjust the distance between the top beam 7 and the ground, and thus the lifting device on the top beam 7 is in a lower position. This effectively reduces the influence of the wind on the lifting device and reduces the sway of the lifting equipment, thereby ensuring the stability during the transfer process;
[0030] Furthermore, the connecting plate 11 is fixedly installed at the end of the push rod of the electric push cylinder 10, and one end of the electric push cylinder 10 far from the connecting plate 11 is detachably installed with a T-shaped block 9 through bolts;
[0031] In this embodiment, the T-shaped block 9 is fixedly installed on an L-shaped fixing frame 8; the L-shaped fixing frame 8 is fixedly installed on one side of the second connecting plate 52 far from the inner lining plate 53 through bolts;
[0032] By adopting the above technical solution, during installation, the two sets of side support beams 3 are fixedly installed with the corresponding matching components 5 respectively, and then the connection is strengthened by the inner lining plate 53 on the inner side of the second connecting plate 52, thereby ensuring the firmness of the support and ensuring that the crane on the top beam 7 can be used for hoisting and handling of different equipment.
[0033] The working principle of this utility model is as follows: When in use, the lifting device is installed on the top beam 7. The top beam 7 can achieve the lifting effect through the electric push cylinder 10 and the lifting rod 6, thereby meeting the application requirements of different scenarios during work. The safety and stability of the cooperating components 5 are effectively guaranteed by the two sets of side support beams 3.
[0034] When used in windy weather, the electric actuator 10 drives the connecting plate 11 to adjust the lifting rod 6 up and down along the mounting cylinder 50, thereby effectively adjusting the distance between the top beam 7 and the ground. This ensures that the lifting device on the top beam 7 is in a lower position, effectively reducing the impact of strong winds on the lifting device and minimizing swaying of the lifting equipment, thus ensuring stability during transportation.
[0035] During installation, the two sets of side support beams 3 are fixedly installed with the corresponding mating components 5, and then the connection is strengthened by the inner lining plate 53 on the inner side of the second connecting plate 52, so as to ensure the firmness of the support and ensure that the crane on the top beam 7 can be used for hoisting and handling of different equipment.
[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A gantry crane with a windproof fixing structure, characterized in that: It includes two groups of side support beams (3) with the same structure, and each group of the side support beams (3) includes two; and one end of the two side support beams (3) is detachably installed with a matching component (5) through bolts; the matching component (5) is arranged in a "soil" shape; a support foot (2) is arranged at the bottom of the side support beam (3); the support foot (2) is fitted and installed with the ground beam (1); the ground beam (1) is预埋 (embedded) in the ground. One side of the two side support beams (3) is fixedly installed with a connecting rod (4) through bolts; the two side support beams (3) and the ground beam (1) are arranged in a triangle.
2. A gantry crane with a windproof fixing structure according to claim 1, characterized in that: The matching component (5) includes an installation cylinder (50); a through hole (54) for the bolt to penetrate is opened on the installation cylinder (50); a first connecting plate (51) and a second connecting plate (52) are fixedly installed on the outer wall of the installation cylinder (50); an inner lining plate (53) is arranged inside the second connecting plate (52); the inner lining plate (53) is fixedly installed on the surface of the side support beam (3).
3. A gantry crane with a windproof fixing structure according to claim 2, characterized in that: A lifting rod (6) is movably installed inside the installation cylinder (50); round holes matching the through hole (54) are opened on the surface of the lifting rod (6), there are multiple such round holes, and the distance between adjacent two round holes is the same.
4. A gantry crane with a windproof fixing structure according to claim 3, characterized in that: One end of the lifting rod (6) far from the ground beam (1) is detachably installed with a top beam (7) through bolts; an ear plate is integrally arranged on the inner surface of the lifting rod (6) and is fixedly installed with a connecting plate (11) through bolts.
5. A gantry crane with a windproof fixing structure according to claim 4, characterized in that: The connecting plate (11) is fixedly installed at the end of the push rod of the electric push cylinder (10), and one end of the electric push cylinder (10) far from the connecting plate (11) is fitted and installed with a T-shaped block (9) through bolts.
6. A gantry crane with a windproof fixing structure according to claim 5, characterized in that: The T-shaped block (9) is fixedly installed on the L-shaped fixing frame (8); the L-shaped fixing frame (8) is fixedly installed on the side of the second connecting plate (52) far from the inner lining plate (53) through bolts.
Citation Information
Patent Citations
Novel windproof crane
CN221319016U