Boom structure and fire fighting truck

Abstract

The utility model relates to the field of fire fighting trucks, and provides a boom structure and a fire fighting truck, comprising a main boom and a side boom which are arranged side by side along the width direction of the boom structure; the input pipeline and the output pipeline are used for conveying fire extinguishing media, the input pipeline is arranged on the side, away from the side arm, of the main arm, and the output pipeline is arranged on the side, away from the main arm, of the side arm; one end of the connecting pipeline is connected with the input pipeline, the other end of the connecting pipeline is connected with the output pipeline, a first through hole penetrating in the width direction of the main arm is formed in the end of the main arm, and the connecting pipeline penetrates through the first through hole. According to the arrangement, the whole arm support is horizontally arranged in the width direction, the height of an original arm support is not changed, the connecting pipeline penetrates through the first through hole to connect the pipelines on the two sides, the internal space of the main arm is fully utilized, the structure is compact and attractive, and the occupied space is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fire trucks, in particular to a boom structure and a fire truck. Background Art

[0002] The boom of an elevated fire truck includes a main boom and a jib arranged left and right, and the pipeline for conveying the fire extinguishing medium needs to be wound from one side of the boom to the other side. At present, the conveying pipeline is generally installed above the boom so as to move synchronously with the boom.

[0003] However, such an arrangement will increase the height dimension of the whole vehicle. At the same time, when the pipeline winds from one side of the boom to the other side, it will protrude outside the boom, occupying a large space and having an unattractive overall appearance. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a boom structure and a fire truck to solve the defects and deficiencies existing in the prior art.

[0005] To achieve the above purpose, the utility model provides a boom structure, including:

[0006] A main boom and a side boom, arranged side by side along the width direction of the boom structure;

[0007] An input pipeline and an output pipeline for conveying the fire extinguishing medium, the input pipeline is arranged on the side of the main boom away from the side boom, and the output pipeline is arranged on the side of the side boom away from the main boom;

[0008] A connecting pipeline, one end of which is connected to the input pipeline, and the other end is connected to the output pipeline. A first through hole is provided at the end of the main boom and runs through the main boom along its width direction, and the connecting pipeline passes through the first through hole.

[0009] According to the boom structure provided by the utility model, the input pipeline and the output pipeline are each at least two, and are arranged side by side along the width direction of the boom structure, and the connecting pipeline is correspondingly arranged with the input pipeline and the output pipeline.

[0010] The first through holes are at least two, and are spaced along the height direction of the main boom, and each connecting pipeline passes through each first through hole respectively.

[0011] According to the boom structure provided by the utility model, it further includes:

[0012] A rotating shaft, arranged at the end of the main boom, the side boom is rotatably connected to the main boom through the rotating shaft, and the rotating shaft is provided with a second through hole running through its axial direction, the second through hole is opposite to the first through hole, and one of the connecting pipelines passes through the first through hole and the second through hole in sequence.

[0013] According to the boom structure provided by the present utility model, there are at least two rotating shafts, which are arranged side by side along the width direction of the boom structure, and the connecting pipeline sequentially passes through each of the rotating shafts.

[0014] According to the boom structure provided by the present utility model, it further includes:

[0015] A limiting bushing, which is inserted into the second through hole, and the limiting bushing is arranged between the connecting pipeline and the rotating shaft, and the limiting bushing is used to prevent the connecting pipeline from displacing radially along the rotating shaft.

[0016] According to the boom structure provided by the present utility model, one end of the limiting bushing is provided with an end face flange, the end face flange abuts against the rotating shaft, and the end face flange and the rotating shaft are respectively provided with mounting holes for inserting fasteners.

[0017] According to the boom structure provided by the present utility model, it further includes:

[0018] A rotary joint, one end of which is connected to the output pipeline, and the other end is connected to the connecting pipeline.

[0019] According to the boom structure provided by the present utility model, the rotary joint is respectively connected to the output pipeline and the connecting pipeline through a connecting flange or a clamp.

[0020] According to the boom structure provided by the present utility model, it further includes:

[0021] A fixing bracket, which is used to fix the output pipeline, and the fixing bracket is arranged on the side part of the side boom.

[0022] The present utility model also provides a fire truck, which includes the boom structure as described in any one of the above.

[0023] The boom structure provided by the present utility model includes: a main boom and a side boom, which are arranged side by side along the width direction of the boom structure; an input pipeline and an output pipeline, which are used for conveying a fire extinguishing medium, the input pipeline is arranged on the side part of the main boom away from the side boom, and the output pipeline is arranged on the side part of the side boom away from the main boom; a connecting pipeline, one end of which is connected to the input pipeline, and the other end is connected to the output pipeline, and a first through hole is provided at the end of the main boom and penetrates along its width direction, and the connecting pipeline passes through the first through hole. With such a setting, the whole boom is horizontally arranged along its width direction, without changing the original height of the boom, and the connecting pipeline passes through the first through hole to connect the pipelines on both sides, making full use of the internal space of the main boom, with a compact and beautiful structure and reduced occupied space. Description of the Drawings

[0024] To more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic diagram of the boom structure provided by the present utility model.

[0026] Figure 2 It is a top view of the boom structure provided by the present utility model.

[0027] Figure 3 It is a side view of the boom structure provided by the present utility model.

[0028] Figure 4 is Figure 3 the A-A cross-sectional view in

[0029] Figure 5 is Figure 4 the local schematic diagram at B in

[0030] Reference numerals:

[0031] 1: main boom; 2: side boom; 3: input pipeline; 4: output pipeline; 5: connecting pipeline; 6: first through hole; 7: rotating shaft; 8: second through hole; 9: limiting bushing; 10: end face flange; 11: rotary joint; 12: connecting flange; 13: clamp; 14: fixed bracket. Detailed implementation manners

[0032] To make the purpose, technical solutions and advantages of the present utility model clearer, the following will clearly and completely describe the technical solutions in the present utility model in conjunction with the drawings in the present utility model. Obviously, the described embodiments are some embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0033] The following will describe Figures 1 to 5 the boom structure of the present utility model in conjunction with

[0034] As Figures 1 to 5 shown, the embodiment of the present utility model provides a boom structure, including a main boom 1, a side boom 2, an input pipeline 3, an output pipeline 4, and a connecting pipeline 5. Specifically, as Figure 1As shown, the main arm 1 and the side arm 2 are arranged side by side along the width direction of the boom structure. The input pipeline 3 and the output pipeline 4 are used to transport the fire extinguishing medium. The input pipeline 3 is arranged on the side of the main arm 1 away from the side arm 2, and the output pipeline 4 is arranged on the side of the side arm 2 away from the main arm 1 to reduce the height of the whole vehicle. One end of the connecting pipeline 5 is connected to the input pipeline 3, and the other end is connected to the output pipeline 4 to connect the pipelines on both sides of the boom. The end of the main arm 1 is provided with a first through hole 6 that is set through along the width direction thereof. The connecting pipeline 5 passes through the first through hole 6, so that the connecting pipeline 5 passes through the opening of the main arm 1 from one side of the boom to the opposite side of the boom.

[0035] In this way, the entire arm is arranged horizontally along its width direction without changing the height of the original arm, and the connecting pipe 5 passes through the first through hole 6 to connect the pipes on both sides, making full use of the internal space of the main arm 1, with a compact and beautiful structure and reduced space occupation. Figure 1 As for the placement position of the boom structure shown in the figure, the direction indicated by the arrow in the figure is the width direction of the boom structure and the width direction of the main arm 1.

[0036] In the prior art, it is often necessary to transport two fire extinguishing media or to supply a large flow of liquid. In this case, a single pipeline cannot meet the use requirements. Therefore, in the embodiment of the utility model, the input pipeline 3 and the output pipeline 4 are at least two, and Figure 2 As shown, each input pipeline 3 and each output pipeline 4 are arranged side by side along the width direction of the boom structure. Specifically, there are two input pipelines 3 and two output pipelines 4, which can be symmetrically arranged on both sides of the boom and are independent of each other, thereby forming two conveying passages, which can be used to convey different fire extinguishing media, or meet the needs of large flow usage. It should be noted that, as shown in FIG. Figure 2 As for the placement position of the boom structure shown in the figure, the up and down direction in the figure is the width direction of the boom structure.

[0037] like Figure 1 As shown, the connecting pipeline 5 is arranged correspondingly to and connected with the input pipeline 3 and the output pipeline 4. There are at least two first through holes 6, and each first through hole 6 is arranged at intervals along the height direction of the main arm 1, and each connecting pipeline 5 passes through each first through hole 6. Specifically, as Figure 1 As shown, there are two connecting pipelines 5, and correspondingly, two first through holes 6 are set at the upper and lower ends of the main arm 1. In this way, the upper and lower connecting pipelines 5 pass through the internal openings of the main arm 1 respectively to connect the two conveying passages. Figure 1 For the placement position of the boom structure shown in the figure, the up and down direction in the figure refers to the up and down position and the height direction of the main arm 1.

[0038] With such a setting, by arranging multiple independent conveying pipelines, the requirements for different fire extinguishing agents and large flow rates can be met, the applicable range is wider, and each pipeline is integrated on both sides of the boom and passes through the internal openings of the main boom 1, so as to achieve the purpose of reducing the overall vehicle dimensions, occupying less space, and having a compact and beautiful overall structure.

[0039] Furthermore, in the embodiment of the present invention, the boom structure further includes a rotating shaft 7. The rotating shaft 7 is arranged at the end of the main boom 1, and the side boom 2 is rotatably connected to the main boom 1 through the rotating shaft 7, so as to realize the deployment and retraction of the side boom 2. As Figure 4 shown, the rotating shaft 7 is provided with a second through hole 8 that runs through along its axial direction. The second through hole 8 is opposite to the first through hole 6, and one of the connecting pipelines 5 sequentially passes through the first through hole 6 and the second through hole 8. With such a setting, the connecting pipeline 5 can directly pass through the opening of the main boom 1 and then reach the opposite side of the boom through the slewing hinge point of the side boom 2 without bending and avoiding, the structure is simpler, the assembly is more convenient, and the installation space is saved. It should be noted that, taking the placement position of the boom structure as Figure 4 shown, the left-right direction in the figure is the axial direction of the rotating shaft 7.

[0040] In an alternative embodiment of the present invention, as Figure 4 shown, there are at least two rotating shafts 7, and the respective rotating shafts 7 are arranged side by side along the width direction of the boom structure, and the connecting pipeline 5 sequentially passes through each rotating shaft 7. With such a setting, the connection of the side boom 1 can be ensured to be stable and the rotation is more reliable. It should be noted that, taking the placement position of the boom structure as Figure 4 shown, the left-right direction in the figure is the width direction of the boom structure.

[0041] Furthermore, in the embodiment of the present invention, as Figure 5 shown, the boom structure further includes a limiting bushing 9. The limiting bushing 9 is inserted into the second through hole 8, and the limiting bushing 9 is arranged between the connecting pipeline 5 and the rotating shaft 7. The limiting bushing 9 is used to prevent the connecting pipeline 5 from displacing radially along the rotating shaft 7. With such a setting, the radial crosstalk of the connecting pipeline 5 can be prevented, making the connection stable and reliable, and facilitating the retraction and extension movement of the boom. It should be noted that, taking the placement position of the boom structure as Figure 5 shown, the up-down direction in the figure is the radial direction of the rotating shaft 7.

[0042] As an alternative embodiment of the present invention, as Figure 5As shown, one end of the limit bushing 9 is provided with an end face flange 10. The end face flange 10 abuts against the rotating shaft 7, and the end face flange 10 and the rotating shaft 7 are respectively provided with mounting holes for inserting fasteners. Specifically, there may be multiple mounting holes, and the mounting holes are evenly spaced along the circumferential direction of the end face flange 10. With such a setting, the limit bushing 9 can be fixedly connected to the rotating shaft 7 through bolts, which is convenient for installation and can reliably perform the function of radial limit.

[0043] In a specific embodiment of the present invention, as Figure 3 shown, the boom structure further includes a rotary joint 11. One end of the rotary joint 11 is connected to the output pipeline 4, and the other end is connected to the connecting pipeline 5. With such a setting, the conveying pipeline can rotate with the boom to meet the actual installation requirements. In addition, as Figure 1 shown, the rotary joint 11 is located outside the side boom 2, which is convenient for maintenance.

[0044] In an alternative embodiment of the present invention, the rotary joint 11 is respectively connected to the output pipeline 4 and the connecting pipeline 5 through a connecting flange 12 or a clamp 13. Specifically, as Figure 3 and Figure 4 shown, there are two rotary joints 11. One end of one rotary joint 11 is connected to an output pipeline 4 through a connecting flange 12, and the other end is connected to a connecting pipeline 5 through a connecting flange 12. One end of the other rotary joint 11 is connected to another output pipeline 4 through a connecting flange 12, and the other end is connected to another connecting pipeline 5 through a clamp 13. With such a setting, the rapid connection of the pipeline can be realized through the connecting flange 12 or the clamp 13, which is convenient for assembly and maintenance. In addition, as Figure 4 shown, the connecting pipeline 5 can also be fixedly connected to the input pipeline 3 through a connecting flange 12 or a clamp 13.

[0045] As an alternative embodiment of the present invention, as Figure 1 shown, the boom structure further includes a fixed bracket 14 for fixing the output pipeline 4, and the fixed bracket 14 is arranged on the side of the side boom 2. Specifically, the fixed bracket 14 can be welded or bolted to the side of the side boom 2, and the output pipeline 4 can be clamped or bolted to the fixed bracket 14. With such a setting, the output pipeline 4 can be firmly installed on the side of the boom through the fixed bracket 14, so that the output pipeline 4 can be stably retracted and extended with the side boom 2.

[0046] The fire truck provided by the present invention will be described below. The fire truck described below can be mutually referred to with the boom structure described above.

[0047] An embodiment of the present utility model also provides a fire truck, which includes a boom structure as described in each of the above embodiments. With this arrangement, the boom is horizontally arranged along its width direction without changing the original height of the boom, and the connecting pipeline 5 passes through the first through hole 6 to connect the pipelines on both sides, making full use of the internal space of the main boom 1, with a compact and beautiful structure and reduced occupied space. The derivation process of this beneficial effect is roughly similar to that of the beneficial effect of the above boom structure, so it will not be elaborated here.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A boom structure, characterized in that: include: The main arm (1) and the side arm (2) are arranged side by side along the width direction of the boom structure; An input pipeline (3) and an output pipeline (4) for conveying a fire extinguishing medium, wherein the input pipeline (3) is arranged on a side of the main arm (1) away from the side arm (2), and the output pipeline (4) is arranged on a side of the side arm (2) away from the main arm (1); A connecting pipeline (5) is connected to the input pipeline (3) at one end and to the output pipeline (4) at the other end; a first through hole (6) is provided at the end of the main arm (1) and is arranged to penetrate along the width direction thereof; and the connecting pipeline (5) passes through the first through hole (6).

2. The boom structure according to claim 1, characterized in that: The number of the input pipeline (3) and the number of the output pipeline (4) are at least two, and the two pipelines are arranged side by side along the width direction of the boom structure; the connecting pipeline (5) is arranged corresponding to the input pipeline (3) and the output pipeline (4); There are at least two first through holes (6), which are arranged at intervals along the height direction of the main arm (1), and each of the connecting pipelines (5) passes through each of the first through holes (6).

3. The boom structure according to claim 2, characterized in that: Also includes: A rotating shaft (7) is arranged at the end of the main arm (1), and the side arm (2) is rotatably connected to the main arm (1) via the rotating shaft (7). The rotating shaft (7) is provided with a second through hole (8) which is arranged to penetrate along its axial direction, and the second through hole (8) is opposite to the first through hole (6), and one of the connecting pipelines (5) passes through the first through hole (6) and the second through hole (8) in sequence.

4. The boom structure according to claim 3, characterized in that: There are at least two rotating shafts (7), which are arranged side by side along the width direction of the boom structure, and the connecting pipeline (5) passes through each of the rotating shafts (7) in sequence.

5. The boom structure according to claim 3, characterized in that: Also includes: A limiting sleeve (9) is inserted into the second through hole (8), and the limiting sleeve (9) is arranged between the connecting pipeline (5) and the rotating shaft (7), and the limiting sleeve (9) is used to prevent the connecting pipeline (5) from being displaced radially along the rotating shaft (7).

6. The boom structure according to claim 5, characterized in that: An end face flange (10) is provided at one end of the limiting shaft sleeve (9), the end face flange (10) is in contact with the rotating shaft (7), and the end face flange (10) and the rotating shaft (7) are correspondingly provided with mounting holes for inserting fasteners.

7. The boom structure according to claim 1, characterized in that: Also includes: A rotary joint (11) has one end connected to the output pipeline (4) and the other end connected to the connecting pipeline (5).

8. The boom structure according to claim 7, characterized in that: The rotary joint (11) is connected to the output pipeline (4) and the connecting pipeline (5) respectively via a connecting flange (12) or a clamp (13).

9. The boom structure according to claim 1, characterized in that: Also includes: A fixing bracket (14) is used to fix the output pipeline (4), and the fixing bracket (14) is arranged on the side of the side arm (2).

10. A fire truck, characterized in that: It comprises the boom structure as described in any one of claims 1 to 9.

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