Movable crane

Abstract

The utility model discloses a movable crane which comprises a chassis assembly, a load-bearing force arm assembly arranged at the upper end of the chassis assembly, a top platform assembly arranged at the upper end of the load-bearing force arm assembly and comprising a top flat plate, a front fixing rod and a supporting rod are fixedly connected to the upper end of the top flat plate, a main hanging plate is fixedly connected to one side of the lower end of the top flat plate, and a first hanging hole is formed in the main hanging plate. The lifting rod assembly is arranged on one side of the front fixing rod and comprises a lifting vertical rod, an auxiliary hanging plate is arranged at the upper end of the lifting vertical rod, and a second hanging hole is formed in the auxiliary hanging plate; hooks are arranged at the upper end and the lower end of the electric hoist and connected to the first hanging hole and the second hanging hole respectively. Compared with the prior art, the lifting device has the advantages that heavy objects can be lifted vertically, the lifting device moves horizontally, the occupied space is small, and the lifting device is suitable for narrow operation sites; heavy objects can be vertically lifted from the ground, and time and labor are greatly saved.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically a mobile crane. Background Technology

[0002] Materials used in construction projects generally require vertical and horizontal transportation after entering the construction site, which increases the cost of these measures. Manual handling, unloading, and lifting are time-consuming and labor-intensive; if a truck crane is used, the rental cost per shift is high, resulting in poor economic efficiency; truck cranes are large and require sufficient operating space; ordinary electric winches require a suspension point at a high altitude and cannot move heavy objects horizontally.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] The technical problem this invention aims to solve is to overcome the above-mentioned technical defects and provide a mobile crane that can vertically lift heavy objects and move horizontally. It occupies less space, making it suitable for narrow work areas; it can vertically lift heavy objects from the ground, eliminating the need for hooks at heights compared to winches; and it significantly saves time and effort compared to manual transport.

[0005] To solve the above problems, the technical solution of this utility model is: a mobile crane, comprising:

[0006] A chassis assembly, the chassis assembly including a chassis support beam, the lower end of which is provided with a moving wheel;

[0007] A load-bearing lever arm assembly is disposed on the upper end of the chassis assembly. The load-bearing lever arm assembly includes a front load-bearing lever arm and a rear load-bearing lever arm. The lower ends of the front load-bearing lever arm and the rear load-bearing lever arm are respectively fixedly connected to the upper end of the chassis support beam.

[0008] A top platform assembly is disposed on the upper end of a load-bearing arm assembly. The top platform assembly includes a top plate. The upper ends of the load-bearing front arm and the load-bearing rear arm are respectively fixedly connected to the lower end of the top plate. A front fixing rod and a support rod are respectively fixedly connected to the upper end of the top plate. A main hanging plate is fixedly connected to one side of the lower end of the top plate. A hanging hole is provided inside the main hanging plate.

[0009] A lifting rod assembly is provided on one side of the front fixed rod. The lifting rod assembly includes a lifting upright, and the upper end of the lifting upright is provided with a secondary hanging plate. The secondary hanging plate is provided with a second hanging hole.

[0010] An electric hoist, wherein hooks are provided at both the upper and lower ends of the electric hoist, and the hooks are respectively connected to hanging hole one or hanging hole two.

[0011] Furthermore, the upper end of the chassis support beam is provided with a counterweight block, the chassis support beam includes multiple sets of cross beams and longitudinal beams, and the upper and lower ends of the load-bearing front arm and load-bearing rear arm are provided with a connecting plate, and the connecting plate is provided with a fastening bolt.

[0012] Furthermore, the front fixing rod is provided with a lifting bolt hole, and the lifting bolt hole is provided with a threaded fastening bolt two, which is threadedly connected to the lifting upright.

[0013] Furthermore, there are multiple sets of lifting bolt holes.

[0014] The advantages of this invention compared to existing technologies are as follows:

[0015] (1) The materials of this utility model are simple, the components are easy to assemble, the components are easy to transport and assemble on site, and the overall stability is strong and the support is strong; the different heights of the first and second hanging holes can meet the lifting of heavy objects of different lifting heights. The counterweight blocks are placed on the chassis components to further enhance the counterweight, ensure stability, and prevent the trolley from tipping over; the trolley lifts heavy objects by operating the electric hoist. The electric hoist is small in size and can greatly reduce the labor intensity of manual vertical transportation. It can be used in spaces where truck cranes cannot operate. Attached Figure Description

[0016] Figure 1 This is the main view of a mobile crane according to this utility model. Figure 1 (Excluding electric hoists)

[0017] Figure 2 This is a side view of a mobile crane according to this utility model.

[0018] Figure 3 This is a top view of the chassis assembly of a mobile crane according to this utility model.

[0019] Figure 4 This is the main view of a mobile crane according to this utility model. Figure 2 .

[0020] Figure 5 This is a top view of the top platform assembly of a mobile crane according to this utility model.

[0021] Figure 6 This is an enlarged view of point A of a mobile crane according to this utility model.

[0022] As shown in the figure: 1. Chassis assembly; 101. Chassis support beam; 102. Moving wheel; 2. Load-bearing arm assembly; 201. Load-bearing front arm; 202. Load-bearing rear arm; 3. Top platform assembly; 301. Top plate; 302. Front fixing rod; 303. Support rod; 304. Main hanging plate; 305. Hanging hole one; 306. Lifting bolt hole; 307. Fastening bolt two; 4. Lifting rod assembly; 401. Lifting upright; 402. Secondary hanging plate; 403. Hanging hole two; 5. Electric hoist. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0024] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0025] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0026] Example 1

[0027] like Figures 1 to 6 As shown, a mobile crane includes a chassis assembly 1, which includes a chassis support beam 101. A counterweight 103 is installed on the upper end of the chassis support beam 101. The counterweight 103 can increase the overall weight of the crane and prevent it from tipping over due to instability during use. The counterweight 103 can be made from materials such as steel, old building materials, cement materials, and concrete blocks available at the construction site, which are easy to obtain. The chassis support beam 101 includes multiple sets of crossbeams and longitudinal beams, which are welded together to form the chassis support beam 101 as a whole. The crossbeams and longitudinal beams are made of the same type of channel steel. The lower end of the chassis support beam 101 is equipped with casters 102 to facilitate the movement of the crane.

[0028] The load-bearing arm assembly 2 is located on the upper end of the chassis assembly 1. The load-bearing arm assembly 2 includes a front load-bearing arm 201 and a rear load-bearing arm 202. The lower ends of the front load-bearing arm 201 and the rear load-bearing arm 202 are respectively fixedly installed on the upper end of the chassis support beam 101. The top platform assembly 3 is located on the upper end of the load-bearing arm assembly 2. The top platform assembly 3 includes a top plate 301. The upper ends of the front load-bearing arm 201 and the rear load-bearing arm 202 are respectively fixedly installed on the lower end of the top plate 301.

[0029] Specifically, a connecting plate is installed at both the upper and lower ends of the load-bearing front arm 201 and the load-bearing rear arm 202. A fastening bolt is installed inside the connecting plate. The upper ends of the load-bearing front arm 201 and the load-bearing rear arm 202 can be installed at the lower end of the top plate 301 through the fastening bolt, and the lower ends of the load-bearing front arm 201 and the load-bearing rear arm 202 can be installed at the upper end of the chassis assembly 1. The load-bearing front arm 201 and the load-bearing rear arm 202 provide support for the top plate 301.

[0030] A front fixing rod 302 and a support rod 303 are fixedly installed on the upper end of the top plate 301, and a main hanging plate 304 is fixedly installed on one side of the lower end of the top plate 301. A hanging hole 305 is opened inside the main hanging plate 304.

[0031] The lifting rod assembly 4 is located on one side of the front fixed rod 302. The lifting rod assembly 4 includes a lifting upright 401. A secondary hanging plate 402 is installed on the upper end of the lifting upright 401. A second hanging hole 403 is opened inside the secondary hanging plate 402. Hooks are installed on both the upper and lower ends of the electric hoist 5. The hooks are respectively connected to the first hanging hole 305 or the second hanging hole 403. The electric hoist 5 has a lifting switch. Pressing the lifting switch can lift heavy objects.

[0032] The front fixing rod 302 has a lifting bolt hole 306 inside. There are multiple sets of lifting bolt holes 306. The lifting bolt hole 306 is fitted with a threaded fastening bolt 307. The fastening bolt 307 is threadedly connected to the lifting rod 401. By matching the lifting bolt hole 306 at different positions with the fastening bolt 307, the height of the lifting rod 401 can be adjusted, and the position of the lifting rod 401 can be raised and lowered.

[0033] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and components is omitted in the specific implementation of this disclosure. To ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A mobile crane, characterized in that, include: The chassis assembly (1) includes a chassis support beam (101), and the lower end of the chassis support beam (101) is provided with a moving wheel (102); The load-bearing arm assembly (2) is located on the upper end of the chassis assembly (1). The load-bearing arm assembly (2) includes a front load-bearing arm (201) and a rear load-bearing arm (202). The lower ends of the front load-bearing arm (201) and the rear load-bearing arm (202) are respectively fixedly connected to the upper end of the chassis support beam (101). Top platform assembly (3), the top platform assembly (3) is set on the upper end of the load-bearing arm assembly (2), the top platform assembly (3) includes a top plate (301), the upper ends of the load-bearing front arm (201) and the load-bearing rear arm (202) are respectively fixedly connected to the lower end of the top plate (301), the upper end of the top plate (301) is respectively fixedly connected to a front fixing rod (302) and a support rod (303), and a main hanging plate (304) is fixedly connected to one side of the lower end of the top plate (301), the main hanging plate (304) is provided with a hanging hole (305) inside; The lifting rod assembly (4) is located on one side of the front fixed rod (302). The lifting rod assembly (4) includes a lifting upright (401). The upper end of the lifting upright (401) is provided with a secondary hanging plate (402). The secondary hanging plate (402) is provided with a second hanging hole (403) inside. An electric hoist (5) is provided with hooks at both the upper and lower ends, and the hooks are respectively connected to the first hanging hole (305) or the second hanging hole (403).

2. The mobile crane according to claim 1, characterized in that: The upper end of the chassis support beam (101) is provided with a counterweight block (103). The chassis support beam (101) includes multiple sets of cross beams and longitudinal beams. The upper and lower ends of the load-bearing front arm (201) and load-bearing rear arm (202) are provided with a connecting plate. The connecting plate is provided with a fastening bolt inside.

3. A mobile crane according to claim 1, characterized in that: The front fixing rod (302) is provided with a lifting bolt hole (306) inside, and a threaded fastening bolt two (307) is provided inside the lifting bolt hole (306), and the fastening bolt two (307) is threadedly connected to the lifting upright (401).

4. A mobile crane according to claim 3, characterized in that: The lifting bolt hole (306) has multiple sets.

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