Straight arm type aerial work platform

Abstract

The utility model discloses a straight arm type aerial work platform which comprises a traveling chassis, a rotating platform is installed at the top of the traveling chassis, a turnover frame is fixedly installed at the top of the rotating platform, a lifting arm assembly is installed on the turnover frame in a turnover mode, a telescopic arm is installed in one end of the lifting arm assembly in a sliding mode, and a telescopic rod is installed in the other end of the lifting arm assembly in a sliding mode. A telescopic arm is installed on the base, a swing arm is installed at the end of the telescopic arm in an overturning mode, a working platform is connected and installed at one end of the swing arm, the working platform and the swing arm are connected and installed through a leveling connecting assembly, a sliding plate is installed in the working platform in a sliding mode, and a feeding folding plate is installed at one end of the sliding plate in an overturning mode. The height between the bottom of the working platform and the ground is shortened through the sliding plate and the feeding folded plate, so that workers can climb conveniently, and feeding and discharging of construction materials are assisted.

Description

Technical Field

[0001] This utility model belongs to the technical field of aerial work platforms, specifically relating to a straight boom aerial work platform. Background Technology

[0002] Aerial work platforms are mobile aerial work platforms that serve various industries for high-altitude operations, equipment installation, maintenance, and other high-altitude work.

[0003] The main products related to aerial work platforms include: scissor lifts, trailer-mounted aerial work platforms, articulated boom lifts, telescopic boom lifts, aluminum alloy aerial work platforms, telescopic cylinder lifts, and spider lifts.

[0004] Domestic utility model patent application number 202320474141.1 discloses a vertically adjustable boom aerial work platform, including a vehicle body, a combined boom structure, and a work platform structure. The work platform structure includes an L-shaped frame, an outer frame, a fixing plate, a platform assembly, a transmission assembly, and a guide assembly. This utility model's work platform structure is a double-layer structure, consisting of an outer frame and a platform assembly. A transmission assembly is also installed within the outer frame. The transmission assembly's rotating cylinder drives the main shaft to rotate, which in turn drives two secondary shafts to rotate via worm gear meshing. Furthermore, the meshing of the driving and driven bevel gears drives four lead screws within the four telescopic main booms to rotate, thereby adjusting the height of the telescopic trailing rods. This achieves the effect of fine-tuning the platform assembly's height. Furthermore, the four telescopic trailing rods simultaneously apply force to the four corners of the platform assembly, and with the help of the guide assembly, the height fine-tuning is more stable. This makes frequent height adjustments more convenient, allows for vertical movement with minimal swaying, and enhances worker safety. The aforementioned utility model can achieve vertical movement with minimal swaying, making the work safer for operators. However, when operators work on a straight boom aerial work platform, the lifting method is straight, which prevents the work platform from directly contacting the ground. Operators need to climb onto the work platform to raise the boom for construction. When it is necessary to carry construction materials, the handling of materials will be inconvenient. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a straight boom aerial work platform, including a traveling chassis, a slewing platform mounted on the top of the traveling chassis, a tilting frame fixedly mounted on the top of the slewing platform, and a lifting arm assembly tilted and mounted on the tilting frame. A telescopic arm is slidably mounted on one end of the lifting arm assembly, and a swing arm is tilted and mounted on the end of the telescopic arm. A working platform is connected and mounted on one end of the swing arm. The working platform and the swing arm are connected and mounted through a leveling connection assembly. A sliding plate is slidably mounted inside the working platform, and a loading baffle is tilted and mounted on one end of the sliding plate.

[0006] The angle of the aerial work platform is adjusted by the slewing platform, and the platform is moved to the designated location in conjunction with the lifting arm assembly, telescopic arm and swing arm.

[0007] As a further preferred technical solution of this utility model; four sets of travel rollers are installed on the travel chassis, an auxiliary groove is opened on the top of the slewing platform, an auxiliary oil cylinder is installed in the auxiliary groove extending from the inside of the slewing platform, and the end of the auxiliary oil cylinder is welded to the bottom of the lifting arm assembly through a flipping block.

[0008] The lifting arm assembly is raised according to the required construction height and direction, and supported and raised by auxiliary cylinders and auxiliary grooves.

[0009] As a further preferred technical solution of this utility model; a positioning frame is welded and installed on one side of the lifting arm assembly, a drag chain is wound up at one end of the positioning frame, a welding frame plate is welded and installed around the outside of the telescopic arm, and one end of the drag chain and the welding frame plate are connected and installed through a connecting block.

[0010] Cable chains are used to provide auxiliary support for the extension and retraction of the telescopic boom, thereby improving its stability during use.

[0011] As a further preferred technical solution of this utility model, the swing arm and the telescopic arm are connected and installed through a flip shaft, and a support frame is installed between the flip shaft and the swing arm.

[0012] The work platform is connected via a leveling connector. The function of this connector is to ensure the work platform remains level throughout the arm's amplitude changes, allowing workers to stand stably. The leveling connector uses a mechanical leveling method, employing one or more parallelogram-shaped linkages, chains, or wires between the arm and the work platform. It utilizes the principle that opposite sides of the parallelogram remain parallel during deformation to maintain overall platform balance.

[0013] As a further preferred technical solution of this utility model; a fence is welded and installed on the top of the work platform, a storage groove is opened inside the work platform, sliding grooves are opened on both sides of the storage groove, and a limiting part is provided at the end of the sliding groove. Two sets of sliders that cooperate with the sliding groove are installed at one end of the sliding plate, and the sliders and the sliding plate are connected and installed through a rotating shaft.

[0014] The sliding plate allows for easy storage inside the storage slot. When the straight boom aerial work platform needs to be loaded or unloaded, or when workers need to climb, the sliding plate and loading folding plate shorten the height between the bottom of the work platform and the ground, making it easier for workers to climb and facilitating the loading and unloading of construction materials.

[0015] As a further preferred technical solution of this utility model; the sliding plate and the feeding folding plate are connected by a hinge shaft, and a support ring is fixedly installed on the top of both the sliding plate and the feeding folding plate. The feeding folding plate is provided with a slot that cooperates with the support ring. The support rings are supported by two sets of support rods. A support inclined part is provided on the working platform at the bottom position of the sliding plate.

[0016] The support rod is fixed by passing through the support ring, ensuring that the sliding plate and the feeding folding plate have the same overall angle and remain stable. The feeding folding plate, connected by the hinge shaft, can be flipped to the top of the sliding plate and then slid into the storage slot by the sliding plate. This increases the length of the sliding plate and the feeding folding plate extending to the ground while ensuring that they can be stored, making it convenient to use them at the appropriate time.

[0017] As a further preferred technical solution of this utility model, anti-collision mechanisms are connected and installed on both sides of the working platform. The anti-collision mechanism includes a mounting frame, three sets of damping springs fixedly installed on one side of the mounting frame, and rubber plates connected and installed at the ends of the damping springs.

[0018] By incorporating anti-collision mechanisms, the work platform has a side impact-absorbing effect during movement.

[0019] As a further preferred technical solution of this utility model, four sets of placement rings are welded and installed on the side of the working platform at the position of the sliding plate.

[0020] The placement rings facilitate the storage of the support rods.

[0021] Beneficial effects

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. The sliding plate slides inside the storage slot for storage. When the straight boom aerial work platform needs to load or unload materials or for workers to climb, the sliding plate and loading folding plate shorten the height between the bottom of the work platform and the ground, making it easier for workers to climb and assisting in the loading and unloading of construction materials.

[0024] 2. The support rod passes through the support ring for limiting and fixing, ensuring that the overall angle of the sliding plate and the feeding folding plate is consistent and maintains a stable state. The feeding folding plate, connected by the hinge shaft, can be flipped to the top of the sliding plate and then slid into the storage slot for storage. This increases the length of the sliding plate and the feeding folding plate extending to the ground while ensuring their storage function, making it convenient to use at the appropriate time. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the lowering articulated arm of this utility model;

[0027] Figure 3 This is a cross-sectional structural diagram of the working platform of this utility model;

[0028] Figure 4 This is a schematic diagram of the sliding structure of the sliding plate of this utility model.

[0029] In the diagram: 1. Chassis; 11. Traveling roller; 2. Rotary platform; 21. Auxiliary trough; 22. Tilting block; 23. Auxiliary cylinder; 3. Tilting frame; 31. Lifting arm assembly; 32. Telescopic arm; 33. Welded frame plate; 34. Cable chain; 341. Connecting block; 35. Positioning frame; 4. Swing arm; 41. Tilting shaft; 42. Support folding frame; 43. Leveling connection assembly; 5. Working platform; 51. Placement ring; 52. Support rod; 53. Fence; 54. Sliding plate; 541. Hinge shaft; 542. Rotating shaft; 543. Slider; 544. Support inclined surface; 55. Feeding folding plate; 56. Support ring; 57. Slot; 58. Storage slot; 581. Limiting part; 582. Slide groove; 6. Anti-collision mechanism; 61. Mounting frame; 62. Rubber plate; 63. Vibration damping spring. Detailed Implementation

[0030] This specific embodiment is a straight boom aerial work platform.

[0031] The aforementioned utility model can achieve vertical movement with minimal swaying, making the work safer for operators. However, when operators work on a straight boom aerial work platform, the lifting method is straight, which prevents the work platform from directly contacting the ground. Operators need to climb onto the work platform to raise the boom for construction. When it is necessary to carry construction materials, the handling of materials will be inconvenient.

[0032] Its structural diagram is as follows Figures 1-4 As shown, a straight boom aerial work platform includes a traveling chassis 1, a slewing platform 2 mounted on top of the traveling chassis 1, a tilting frame 3 fixedly mounted on top of the slewing platform 2, and a lifting boom assembly 31 tilted and mounted on the tilting frame 3. Four sets of traveling rollers 11 are mounted on the traveling chassis 1. An auxiliary groove 21 is provided on the top of the slewing platform 2, and an auxiliary hydraulic cylinder 23 is tilted and mounted inside the auxiliary groove 21. The end of the auxiliary hydraulic cylinder 23 is welded to the bottom of the lifting boom assembly 31 via a tilting block 22. The lifting boom assembly 31 is raised according to the required working height and direction, and the auxiliary hydraulic cylinder 23 assists the auxiliary groove 21 in supporting the raising.

[0033] A telescopic boom 32 is slidably mounted on one end of the lifting boom assembly 31. A positioning frame 35 is welded to one side of the lifting boom assembly 31, and a cable chain 34 is wound up at one end of the positioning frame 35. A welding frame plate 33 is welded to the outer ring of the telescopic boom 32, and one end of the cable chain 34 and the welding frame plate 33 are connected by a connecting block 341. The cable chain 34 provides auxiliary support for the extension and retraction of the telescopic boom 32, improving its stability during use. A swing arm 4 is flipped and mounted on the end of the telescopic boom 32, and a work platform 5 is connected to one end of the swing arm 4. The work platform 5 and the swing arm 4 are connected by a leveling connection assembly 43. The swing arm 4 and the telescopic boom 32 are connected by a tilting shaft 41, and a support folding frame 42 is installed between the tilting shaft 41 and the swing arm 4. The work platform 5 is connected by the leveling connection assembly 43. The function of the leveling connection assembly 43 is to ensure that the work platform 5 remains horizontal when the swing arm 4 changes amplitude, so that the operator can stand stably. The leveling connection component 43 is used to level the work platform 5 by means of mechanical leveling. By setting one or more parallelogram linkage mechanisms, chains or steel wires between the swing arm 4 and the work platform 5, the work platform 5 is kept in balance by utilizing the principle that the opposite sides are always parallel during the deformation of the parallelogram.

[0034] A sliding plate 54 is slidably installed inside the working platform 5, and a loading baffle 55 is installed at one end of the sliding plate 54. A railing 53 is welded to the top of the working platform 5, and a storage groove 58 is opened inside the working platform 5. Sliding grooves 582 are opened on both sides of the storage groove 58, and a limit part 581 is provided at the end of the sliding groove 582. Two sets of sliders 543 are installed at one end of the sliding plate 54, which cooperate with the sliding groove 582 to slide. The sliders 543 and the sliding plate 54 are connected and installed through a rotating shaft 542. The sliding plate 54 slides and stores materials inside the storage groove 58. When the straight boom aerial work platform needs to be loaded and unloaded or workers need to climb, the height between the bottom of the working platform 5 and the ground is shortened by the sliding plate 54 and the loading baffle 55, which facilitates workers' climbing and assists in the loading and unloading of construction materials.

[0035] The sliding plate 54 and the feeding folding plate 55 are connected by a hinge shaft 541. Support rings 56 are fixedly installed on the top of both the sliding plate 54 and the feeding folding plate 55, and the feeding folding plate 55 has a slot 57 that mates with the support rings 56. The support rings 56 are supported by two sets of support rods 52. A support slope 544 is provided on the working platform 5 at the bottom of the sliding plate 54. The support rods 52, passing through the support rings 56, limit and fix the sliding plate 54 and the feeding folding plate 55, ensuring that their overall angle is consistent and stable. The feeding folding plate 55, connected by the hinge shaft 541, can be flipped to the top of the sliding plate 54 and then slid into the storage slot 58 for storage. This increases the length of the sliding plate 54 and the feeding folding plate 55 extending to the ground while ensuring their storage function, facilitating their use at appropriate times. Anti-collision mechanisms 6 are installed on both sides of the work platform 5. The anti-collision mechanism 6 includes a mounting frame 61, three sets of damping springs 63 fixedly installed on one side of the mounting frame 61, and rubber plates 62 connected to the ends of the damping springs 63. The anti-collision mechanism 6 provides a side impact buffer during the movement of the work platform 5. Four sets of placement rings 51 are welded and installed on the side of the work platform 5 at the location of the sliding plate 54. The placement rings 51 facilitate the storage of the support rods 52.

[0036] Example 1: When the straight boom aerial work platform is driven to the designated location, the slewing platform 2 rotates horizontally, the lifting boom assembly 31 is raised, and the telescopic boom 32 extends and retracts, causing the swing arm 4 to flip, so that the work platform 5 is moved to the designated location for construction. After the construction is completed, the sliding plate 54 is slid and the loading baffle 55 is flipped, and the support rod 52 is positioned and installed through the two sets of support rings 56. When the straight boom aerial work platform needs to load or unload materials or for workers to climb, the height between the bottom of the work platform 5 and the ground is shortened by the sliding plate 54 and the loading baffle 55, which facilitates workers to climb and assists in the loading and unloading of construction materials.

[0037] Example 2: During the movement of the work platform 5, the rubber plate 62 connected to the end of the damping spring 63 in the anti-collision mechanism 6 can prevent collisions on the side of the work platform 5.

[0038] All technical features in this embodiment can be freely combined according to actual needs.

[0039] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A straight boom aerial work platform, characterized in that, The system includes a driving chassis (1), a rotating platform (2) is mounted on the top of the driving chassis (1), a tilting frame (3) is fixedly mounted on the top of the rotating platform (2), and a lifting arm assembly (31) is tilted and mounted on the tilting frame (3). A telescopic arm (32) is slidably mounted inside one end of the lifting arm assembly (31), and a swing arm (4) is tilted and mounted at the end of the telescopic arm (32). A working platform (5) is connected and mounted at one end of the swing arm (4). The working platform (5) and the swing arm (4) are connected and mounted through a leveling connection assembly (43). A sliding plate (54) is slidably mounted inside the working platform (5), and a loading baffle (55) is tilted and mounted at one end of the sliding plate (54).

2. The straight boom aerial work platform according to claim 1, characterized in that: Four sets of travel rollers (11) are installed on the travel chassis (1). An auxiliary groove (21) is opened on the top of the rotary platform (2). An auxiliary cylinder (23) is installed in the auxiliary groove (21) inside the rotary platform (2). The end of the auxiliary cylinder (23) is welded to the bottom of the lifting arm assembly (31) through a flipping block (22).

3. The straight boom aerial work platform according to claim 1, characterized in that: A positioning frame (35) is welded and installed on one side of the lifting arm assembly (31). A drag chain (34) is wound up at one end of the positioning frame (35). A welding frame plate (33) is welded and installed around the outside of the telescopic arm (32). One end of the drag chain (34) and the welding frame plate (33) are connected and installed through a connecting block (341).

4. A straight boom aerial work platform according to claim 1, characterized in that: The swing arm (4) and the telescopic arm (32) are connected and installed through a flip shaft (41), and a support frame (42) is installed between the flip shaft (41) and the swing arm (4).

5. A straight boom aerial work platform according to claim 1, characterized in that: The work platform (5) is welded and installed with a fence (53) on the top. The work platform (5) has a storage groove (58) inside. The storage groove (58) has a sliding groove (582) on both sides. A limit part (581) is provided at the end of the sliding groove (582). Two sets of sliders (543) are installed at one end of the sliding plate (54) and slide in cooperation with the sliding groove (582). The sliders (543) and the sliding plate (54) are connected and installed through a rotating shaft (542).

6. A straight boom aerial work platform according to claim 1, characterized in that: The sliding plate (54) and the feeding folding plate (55) are connected by a hinge shaft (541). The top of both the sliding plate (54) and the feeding folding plate (55) are fixedly installed with support rings (56). The feeding folding plate (55) is provided with a slot (57) that cooperates with the support rings (56). The support rings (56) are supported by two sets of support rods (52). The working platform (5) is provided with a support inclined surface (544) at the bottom of the sliding plate (54).

7. A straight boom aerial work platform according to claim 1, characterized in that: The work platform (5) is connected and installed with anti-collision mechanisms (6) on both sides. The anti-collision mechanism (6) includes a mounting frame (61), three sets of damping springs (63) fixedly installed on one side of the mounting frame (61), and rubber plates (62) connected and installed at the ends of the damping springs (63).

8. A straight boom aerial work platform according to claim 1, characterized in that: Four sets of placement rings (51) are welded and installed on the side of the working platform (5) at the position of the sliding plate (54).

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