Multi-layer telescopic boom structure of vertical water supply and drainage emergency rescue vehicle

Abstract

The utility model discloses a multi-layer telescopic boom structure of a vertical water supply and drainage emergency rescue vehicle. The structure comprises a main arm frame, an auxiliary arm frame, various sliding grooves, sliding blocks, oil cylinders and the like. A main arm frame inner auxiliary beam is arranged in the main arm frame longitudinal beam to form a giant structure, the auxiliary arm frame slides up and down on the inner side of the main arm frame under the matching of a plurality of groups of sliding blocks, and the oil cylinder provides power. By additionally arranging the auxiliary beam in the main arm frame and utilizing the matching of a plurality of groups of sliding blocks, unbalance loading force is dispersed to each part of the arm frame, so that the local stress of the arm frame is effectively reduced, the structural strength and stability of the vehicle are enhanced, and the reliability and the service life of the vertical water supply and drainage emergency rescue vehicle are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vertical water supply and drainage emergency rescue vehicles, and particularly relates to a multi-layer telescopic arm frame structure of a vertical water supply and drainage emergency rescue vehicle. BACKGROUND

[0002] In the actual application of the vertical water supply and drainage emergency rescue vehicle, the submersible pump is put into the water source to perform water pumping and draining work through the telescopic arm frame action, and the water pump and the water pipe are installed on the telescopic arm frame. Due to the large volume and mass of the telescopic water pipe and the water pump, the telescopic arm frame is always in an unbalanced state during vertical operation. At present, the vehicle usually adopts a “C”-shaped arm frame girder structure, under which the stress borne by the main arm frame wing surface is too large and too concentrated. Long-term operation in this state can easily cause damage to the arm frame structure, seriously affecting the service life and working reliability of the vertical water supply and drainage emergency rescue vehicle, increasing the equipment maintenance cost and safety hazards, and therefore a new arm frame structure is urgently needed to solve these problems. SUMMARY

[0003] The purpose of the present application is to provide a multi-layer telescopic arm frame structure of a vertical water supply and drainage emergency rescue vehicle, which adopts a multi-layer arm frame structure to uniformly disperse the unbalanced force to each part of the arm frame, reduce the local stress of the arm frame, increase the strength of the vehicle structure, and improve the reliability and service life of the vertical water supply and drainage emergency rescue vehicle.

[0004] The multi-layer telescopic arm frame structure comprises a main arm frame, a main arm frame girder, a main arm frame inner secondary beam, a secondary arm frame, a secondary arm frame girder, an inner sliding block, an outer sliding block, an oil cylinder, a main arm frame upper end lifting lug, and a secondary arm frame lower end lifting lug.

[0005] The main arm frame is in a rectangular structure, and the middle of the upper end transverse beam is fixedly connected with the main arm frame upper end lifting lug. The two sides are main arm frame girders, and the lower part inner side of the main arm frame girder is provided with an inner sliding block.

[0006] The main arm frame girder is fixedly connected with the main arm frame inner secondary beam in the groove, and the outer sides of the main arm frame inner secondary beam are uniformly provided with a plurality of inner sliding blocks in the vertical direction. The main arm frame girder and the main arm frame inner secondary beam are combined into a “H” shape structure.

[0007] The secondary arm frame is located on the inner side of the main arm frame, and the secondary arm frame is in a rectangular structure. The middle of the lower end transverse beam is fixedly connected with the secondary arm frame lower end lifting lug, and the two sides are secondary arm frame girders. The secondary arm frame girder is in a “C” shape structure, and the upper part outer side of the secondary arm frame girder is provided with an outer sliding block. The outer sliding block, the inner sliding block installed on the outer side of the main arm frame inner secondary beam, and the outer sliding block installed on the inner side of the bottom of the main arm frame girder realize mutual cooperation and achieve up-down sliding.

[0008] The main arm frame inner secondary beam is a rectangular tube, a channel steel or a “C” shape bent piece.

[0009] The inner auxiliary beam of the main arm frame can be continuous or segmented.

[0010] The oil cylinder is located in the middle of the multi-layer telescopic arm frame structure and is connected with the upper end lifting lug of the main arm frame and the lower end lifting lug of the auxiliary arm frame to provide power for the sliding of the arm frame.

[0011] The utility model discloses beneficial effect is: increase the inner auxiliary beam structure of main arm frame, through a plurality of groups of sliding blocks cooperation, the partial load of main arm frame is dispersed, makes each part of arm frame evenly bears load, effectively reduces the local stress of arm frame, greatly improves the strength and stability of vehicle structure. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the schematic diagram of the multi-layer telescopic arm frame structure of the utility model;

[0013] Figure 2 It is the upper end partial enlarged view of the hidden unilateral main arm frame longitudinal beam of the utility model;

[0014] Figure 3 It is the schematic diagram of the fitting mode of the main arm frame longitudinal beam and the auxiliary arm frame longitudinal beam of the utility model;

[0015] Figure 4 It is the top sectional view of the auxiliary arm frame longitudinal beam of the utility model;

[0016] Figure 5 It is the bottom sectional view of the main arm frame longitudinal beam of the utility model.

[0017] In the drawing: main arm frame 1, main arm frame longitudinal beam 2, main arm frame inner auxiliary beam 3, auxiliary arm frame 4, auxiliary arm frame longitudinal beam 5, oil cylinder 6, inner sliding block 10, outer sliding block 7, main arm frame upper end lifting lug 9, auxiliary arm frame lower end lifting lug 8. DETAILED DESCRIPTION

[0018] In order to facilitate the ordinary skilled person in the art to understand and implement the utility model, the utility model is further described in detail below in combination with the drawings and examples, and it should be understood that the implementation examples described here are only for illustrating and explaining the utility model, and are not used to limit the utility model.

[0019] The multi-layer telescopic arm frame structure of the utility model includes a main arm frame, a main arm frame longitudinal beam, a main arm frame inner auxiliary beam, an auxiliary arm frame, an auxiliary arm frame longitudinal beam, an inner sliding block, an outer sliding block, an oil cylinder, a main arm frame upper end lifting lug and an auxiliary arm frame lower end lifting lug.

[0020] As shown in the drawing, Figure 1 The main arm frame total becomes the rectangular structure, and the middle of the upper end cross beam is fixedly connected with the main arm frame upper end lifting lug; the two sides are main arm frame longitudinal beams, and the inner sliding block is arranged on the lower part of the inner side of the main arm frame longitudinal beam.

[0021] AsFigure 5 As shown, the main arm frame longitudinal beam is fixedly connected with a main arm frame inner secondary beam in the groove, and a plurality of inner sliding blocks are evenly arranged on the outer sides of the main arm frame inner secondary beam in the vertical direction.

[0022] As shown in the figure, Figure 1 , Figure 3 , Figure 4 As shown, the secondary arm frame is located on the inner side of the main arm frame, and the secondary arm frame is a rectangular structure as a whole, and a secondary arm frame lower end lifting lug is fixedly connected in the middle of the lower end cross beam, and the two sides are secondary arm frame longitudinal beams, which are "C" shaped structures, and outer sliding blocks are arranged on the outer sides of the upper parts of the secondary arm frame longitudinal beams, which realize up and down sliding under the mutual cooperation of the outer sliding blocks, the inner sliding blocks arranged on the outer sides of the main arm frame inner secondary beam, and the outer sliding blocks arranged on the inner sides of the bottom of the main arm frame longitudinal beam.

[0023] As shown in the figure, Figure 5 The main arm frame inner secondary beam is a "C" shaped bent piece, and can also be equivalently replaced by a rectangular tube or a channel steel.

[0024] The oil cylinder is located in the middle of the multi-layer telescopic arm frame structure, and is connected with the main arm frame upper end lifting lug and the secondary arm frame lower end lifting lug to provide power for the sliding of the arm frame.

[0025] When the vertical water supply and drainage emergency rescue vehicle is working, the oil cylinder pushes the secondary arm frame to slide downward along the predetermined track on the inner side of the main arm frame, and in this process, the secondary arm frame drives the telescopic water pipe installed thereon to move downward together, and the telescopic water pipe is accurately extended into the working position.

[0026] As the telescopic water pipe continuously penetrates, its own gravity and the weight of the water flow carried will generate a downward and biased water pipe side pulling force on the arm frame, which is the eccentric load.

[0027] Under the action of the eccentric load, the main arm frame and the secondary arm frame will produce a certain degree of elastic deformation due to the elastic properties of the materials.

[0028] Under the action of the elastic deformation, the inner sliding blocks evenly distributed on the outer sides of the main arm frame inner secondary beam tightly cooperate with the outer sliding blocks on the outer sides of the secondary arm frame, forming a force transmission node, which disperses the eccentric load borne by the secondary arm frame. Part of the eccentric load is transmitted to the main arm frame inner secondary beam, and the force is further dispersed to various parts of the main arm frame through the main arm frame inner secondary beam; the other part of the eccentric load is directly transmitted to the outer wall of the main arm frame longitudinal beam, avoiding the concentration of stress.

Claims

1. A multi-layer telescopic boom structure of a vertical water supply and drainage emergency rescue vehicle, characterized in that, Include: The main arm frame (1), the main arm frame longitudinal beam (2), the main arm frame inner secondary beam (3), the secondary arm frame (4), the secondary arm frame longitudinal beam (5), the inner sliding block (10), the outer sliding block (7), the oil cylinder (6), the main arm frame upper end lug (9), the secondary arm frame lower end lug (8); The main arm frame (1) is rectangular structure, the middle of the upper end beam is fixedly connected with the main arm frame upper end lug (9); Two sides are the main arm frame longitudinal beam (2), the outer sliding block (7) is arranged on the inner side of the lower end of the main arm frame longitudinal beam (2), the main arm frame longitudinal beam (2) is fixedly connected with the main arm frame inner secondary beam (3) in the groove; The main arm frame inner secondary beam (3) is uniformly provided with a plurality of inner sliding blocks (10) in the vertical direction on the outer side of both sides, and the main arm frame longitudinal beam (2) and the main arm frame inner secondary beam (3) are combined into a "giant” type structure.

2. The multi-layer telescopic boom structure of the vertical water supply and drainage emergency rescue vehicle according to claim 1, characterized in that: The secondary arm frame (4) is located in the inner side of the main arm frame (1), and both sides are the secondary arm frame longitudinal beam (5); The secondary arm frame longitudinal beam (5) is a "C” type structure, and the outer sliding block (7) is arranged on the upper outer side; It realizes up-down sliding under the mutual cooperation of the outer sliding block (7) of itself, the inner sliding block (10) installed on the outer side of the main arm frame inner secondary beam (3), and the outer sliding block (7) installed on the inner side of the bottom of the main arm frame longitudinal beam (2).

3. The multi-layer telescopic boom structure of the vertical water supply and drainage emergency rescue vehicle according to claim 1, characterized in that: The main arm frame inner secondary beam (3) is a rectangular tube, a channel steel or a "C” shaped bent part.

4. The multi-layer telescopic boom structure of the vertical water supply and drainage emergency rescue vehicle according to claim 1, characterized in that: The main arm frame inner secondary beam (3) can be continuous or segmented structure.

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