CN219611202U

CN219611202U - Expandable crossing frame based on automobile crane

Info

Publication number: CN219611202U
Application number: CN202320362312.1U
Authority: CN
Inventors: 张阳; 全桉龙; 宋凯峰; 王志斌
Original assignee: Hubei University of Science and Technology
Current assignee: Hubei University of Science and Technology
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-08-29
Anticipated expiration: 2033-02-28

Abstract

The utility model provides an expandable crossing frame based on an automobile crane, and belongs to the technical field of overhead line equipment. The device comprises a mounting seat, an extension support hinged on the mounting seat and at least one crossing platform fixed on the extension support, wherein the crossing platform comprises at least two first transverse sliding rods fixed on the extension support and a plurality of first transverse sliding tables simultaneously connected with the first transverse sliding rods in a sliding manner, each first transverse sliding table is overlapped and comprises a connecting plate, a plurality of first sliding sleeves fixed below the connecting plate and a second transverse sliding rod fixed above the connecting plate, the first transverse sliding rods are parallel to the second transverse sliding rods, and the first sliding sleeves of the lowest transverse sliding tables are matched with the first transverse sliding rods; in the adjacent transverse sliding tables, a sliding sleeve I of the transverse sliding table positioned above is matched with a transverse sliding rod II of the transverse sliding table positioned below. The utility model has the advantages of large expansion space, simple structure and the like.

Description

Expandable crossing frame based on automobile crane

Technical Field

The utility model belongs to the technical field of overhead line equipment, and relates to an expandable spanning frame based on an automobile crane.

Background

The three working procedures of the power transmission line comprise a foundation, a pole tower and a wire; the overhead line is one process with high technical requirements and high construction difficulty in three processes, and the quality requirement standard needs to be met after construction. In the overhead line construction of the power transmission and transformation industry, the crossing is a common construction working condition. The crossing frame is used for supporting the ground wire in the construction process of the line, and temporarily passes through the highway, the railway, the power line and the weak current line. The traditional spanning frame needs to be surveyed in the field before being erected, and factors such as weather and the like are considered, and strict approval flow and multiparty coordination are carried out; the erection and dismantling costs are relatively high, and potential safety hazards exist simultaneously, so that the collapse of the frame body and casualties are easily caused. Typically, factors such as wire or ground wire spacing, windage, safety margin, and crossover angle affect the actual overall shelf length and shelf top width. Therefore, the requirements of the actual whole frame on adjustable length and width of the frame top are met, and the crossing frame has the characteristics of convenience in erection, low construction cost and the like, and has practical significance.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provide an expandable spanning frame based on an automobile crane, and the technical problem to be solved by the utility model is how to improve the reliability and the expanding width of the spanning frame.

The aim of the utility model can be achieved by the following technical scheme: the expandable crossing frame based on the automobile crane is characterized by comprising a mounting seat, an extension pillar hinged on the mounting seat and at least one crossing platform fixed on the extension pillar, wherein the crossing platform comprises at least two first transverse sliding rods fixed on the extension pillar and a plurality of first transverse sliding tables simultaneously connected with the first transverse sliding rods in a sliding manner, each transverse sliding table is overlapped, each transverse sliding table comprises a connecting plate, a plurality of first sliding sleeves fixed below the connecting plate and a second transverse sliding rod fixed above the connecting plate, the first transverse sliding rods are parallel to the second transverse sliding rods, and the first sliding sleeves of the lowermost transverse sliding tables are matched with the first transverse sliding rods; in the adjacent transverse sliding tables, a sliding sleeve I of the transverse sliding table positioned above is matched with a transverse sliding rod II of the transverse sliding table positioned below.

Further, the crossing platform further comprises a longitudinal sliding table, the longitudinal sliding table comprises at least two top plates and longitudinal sliding rods fixed on a connecting plate of the uppermost transverse sliding table, the longitudinal sliding rods are perpendicular to the first transverse sliding rods, and a plurality of sliding sleeves II matched with the longitudinal sliding rods are fixedly arranged below the top plates.

Further, two spanning platforms are arranged and symmetrically distributed on two sides of the extending support column.

Furthermore, a first locking bolt capable of fixing the first transverse sliding rod and the second transverse sliding rod which are matched with the first sliding sleeve is arranged on the first sliding sleeve.

Further, a second locking bolt capable of fixing the longitudinal sliding rod matched with the second sliding sleeve is arranged on the second sliding sleeve.

The mounting seat is arranged at the end part of the crane boom of the automobile crane, and the hinge point between the extension support column and the mounting seat is used for controlling the inclination angle of the top plate, and is generally horizontal; each connecting plate can slide and be fixed after the slip, realizes the horizontal extension of roof and expandes, forms the step, not only can expand the extension distance that transversely extends, still be convenient for operating personnel get into the roof, and the roof can realize vertical extension and expansion, through the cooperation of shift and connecting plate, can realize extending the extension in the great space in pillar outside. Because simple structure, and the easy dismouting of connected mode, but reduce cost, improve the portability of putting up, the size is less after the shrink, convenient warehousing and transportation.

Drawings

Fig. 1 is a schematic perspective view of the present spanning frame in a contracted state.

Fig. 2 is a schematic structural view of the roof of the present crossing frame after being unfolded.

Fig. 3 is a side view of the present spanning frame in a contracted state.

Fig. 4 is a side view of the present spanning frame in an expanded state.

In the figure, 1, a mounting seat; 2. an extension strut; 3. a transverse slide bar I; 4. a connecting plate; 5. a first sliding sleeve; 6. a transverse slide bar II; 7. a top plate; 8. a longitudinal slide bar; 9. and a second sliding sleeve.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

The expandable spanning frame based on the automobile crane as shown in fig. 1 and 3 comprises a mounting seat 1, an extension pillar 2 hinged on the mounting seat 1 and at least one spanning platform fixed on the extension pillar 2, wherein the spanning platform comprises at least two transverse sliding rods I3 fixed on the extension pillar 2 and a plurality of transverse sliding tables simultaneously connected on the transverse sliding rods I3 in a sliding manner, each transverse sliding table is overlapped, each transverse sliding table comprises a connecting plate 4, a plurality of sliding sleeves I5 fixed below the connecting plate 4 and a transverse sliding rod II 6 fixed above the connecting plate 4, the transverse sliding rods I3 are parallel to the transverse sliding rods II 6, and the sliding sleeve I5 of the transverse sliding table at the lowest part is matched with the transverse sliding rod I3; in the adjacent transverse sliding tables, a sliding sleeve I5 of the transverse sliding table positioned above is matched with a transverse sliding rod II 6 of the transverse sliding table positioned below.

The crossing platform also comprises a longitudinal sliding table (the longitudinal unfolding space can be arranged or not) which comprises at least two top plates 7 and longitudinal sliding rods 8 fixed on the connecting plate 4 of the uppermost transverse sliding table, the longitudinal sliding rods 8 are perpendicular to the first transverse sliding rods 3, and a plurality of sliding sleeves II 9 matched with the longitudinal sliding rods 8 are fixedly arranged below the top plates 7.

There are two spanning platforms, and the two spanning platforms are symmetrically distributed on two sides of the extension strut 2. The sliding sleeve I5 is provided with a locking bolt I which can fix the transverse sliding rod I3 and the transverse sliding rod II 6 matched with the sliding sleeve I, and the sliding sleeve II 9 is provided with a locking bolt II which can fix the longitudinal sliding rod 8 matched with the sliding sleeve II.

The mounting seat 1 is arranged at the end part of the crane boom of the automobile crane, and the hinge point between the extension support column 2 and the mounting seat 1 is used for controlling the inclination angle of the top plate 7, and is generally horizontal; each connecting plate 4 can slide and be fixed after sliding, realizes the horizontal extension of roof 7 and expands, forms the step, as shown in fig. 2 and 4, not only can expand the extension distance that transversely extends, still be convenient for the operating personnel to get into roof 7, roof 7 can realize vertical extension and expansion, through the cooperation of shift and connecting plate 4, can realize extending the extension in the great space in the outside of pillar 2. Because the structure is simple, the connection mode is easy to disassemble and assemble, the cost can be reduced, the portability of the building is improved, the size is smaller after shrinkage, the storage and transportation are convenient, and the shrinkage is shown in fig. 1 and 3.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. The expandable spanning frame based on the automobile crane is characterized by comprising a mounting seat (1), an extension support (2) hinged to the mounting seat (1) and at least one spanning platform fixed on the extension support (2), wherein the spanning platform comprises at least two transverse sliding rods I (3) fixed on the extension support (2) and a plurality of transverse sliding tables simultaneously connected to the transverse sliding rods I (3) in a sliding manner, each transverse sliding table is overlapped and comprises a connecting plate (4), a plurality of sliding sleeves I (5) fixed below the connecting plate (4) and a transverse sliding rod II (6) fixed above the connecting plate (4), the transverse sliding rods I (3) are parallel to the transverse sliding rods II (6), and the sliding sleeve I (5) of the lowest transverse sliding table is matched with the transverse sliding rods I (3); in the adjacent transverse sliding tables, a sliding sleeve I (5) of the transverse sliding table positioned above is matched with a transverse sliding rod II (6) of the transverse sliding table positioned below.

2. The expandable spanning frame based on the automobile crane according to claim 1, wherein the spanning platform further comprises a longitudinal sliding table, the longitudinal sliding table comprises at least two top plates (7) and longitudinal sliding rods (8) fixed on a connecting plate (4) of the uppermost transverse sliding table, the longitudinal sliding rods (8) are perpendicular to the first transverse sliding rods (3), and a plurality of sliding sleeves (9) matched with the longitudinal sliding rods (8) are fixedly arranged below the top plates (7).

3. The expandable spanning frame based on the automobile crane according to claim 2, wherein two spanning platforms are arranged, and the two spanning platforms are symmetrically distributed on two sides of the extension strut (2).

4. A mobile crane based expandable span structure according to claim 3, wherein the first sliding sleeve (5) is provided with a first locking bolt capable of fixing a first transverse sliding rod (3) and a second transverse sliding rod (6) which are matched with the first sliding sleeve.

5. The expandable crossing frame based on the automobile crane according to claim 4, wherein the second sliding sleeve (9) is provided with a second locking bolt capable of fixing a longitudinal sliding rod (8) matched with the second sliding sleeve.