Telescopic pipe fixing device of ladder fire truck and ladder fire truck

Abstract

The present invention relates to a telescopic tube fixing device for a ladder fire truck and a ladder fire truck. The telescopic tube fixing device for a ladder fire truck comprises a ladder; and a mounting frame, each stage of the telescopic tube is connected to the ladder through the mounting frame, so that the telescopic tube is extended as the ladder is lifted; the position of the mounting frame for installing the telescopic tube is adjustable relative to the ladder, so as to reduce the deformation of the telescopic tube during the lifting of the ladder. The present invention can alleviate the problem of excessive interference when the telescopic tube is extended for a long time with the ladder.

Description

Technical Field

[0001] The invention relates to the field of fire fighting machinery, and in particular to a telescopic pipe fixing device of a ladder fire truck and the ladder fire truck. Background Art

[0002] The ladder fire truck includes a lifting ladder and a telescopic pipe for conveying fire-fighting fluid. The telescopic pipe is fixedly connected to the lifting ladder. During operation, the telescopic pipe extends as the lifting ladder extends to convey the fire-fighting fluid to a certain height to achieve high-altitude firefighting operations.

[0003] As the lifting height of the aerial ladder of the aerial ladder fire truck increases, the flexural deformation of the ladder frame increases, and the telescopic tube fixed under the ladder frame completely deforms with the deformation of the ladder frame. When the ladder frame is fully extended, the deflection deformation of the telescopic tube is completely consistent with the ladder frame. Therefore, the deflection deformation of the telescopic tube fixed under the ladder frame increases.

[0004] Since the telescopic tube adopts a multi-stage connection, when the deflection is too large, it will cause water seepage at the connection of the telescopic tube, affecting the spray pressure and range of the water cannon. In addition, if the deformation of the telescopic tube is too large, it is easy to cause permanent deformation at the overlap, affecting the smoothness of the contraction of the telescopic tube. Summary of the invention

[0005] One of the purposes of the present invention is to provide a telescopic pipe fixing device for a ladder fire truck and a ladder fire truck, so as to alleviate the problem of excessive disturbance of the telescopic pipe.

[0006] Some embodiments of the present invention provide a telescopic tube fixing device for a ladder fire truck, which includes a ladder; and a mounting frame, wherein each level of the telescopic tube is connected to the ladder through the mounting frame so that the telescopic tube extends as the ladder is lifted; the position of the mounting frame for installing the telescopic tube is adjustable relative to the ladder to reduce the deformation of the telescopic tube during the lifting of the ladder.

[0007] In some embodiments, the mounting frame includes: a first mounting frame fixedly mounted on the ladder; and a second mounting frame movably mounted on the first mounting frame relative to the first mounting frame, wherein the second mounting frame is used to mount the telescopic tube.

[0008] In some embodiments, the first mounting frame includes a cylindrical structure, and a portion of the second mounting frame is movably disposed in the cylindrical structure.

[0009] In some embodiments, a slide groove is provided on the side wall of the cylindrical structure, and a guide member is provided at a portion of the second mounting frame located inside the cylindrical structure, and an end of the guide member can be slidably disposed in the slide groove.

[0010] In some embodiments, the guide member includes a bolt, both ends of which are respectively located in the slide grooves of the side wall of the tubular structure, and nuts are provided at the parts of both ends of the bolt that extend out of the tubular structure.

[0011] In some embodiments, the mounting frame includes a pulley, which is provided at a portion of the second mounting frame located in the cylindrical structure to reduce friction between the portion of the second mounting frame located in the cylindrical structure and an inner wall of the cylindrical structure.

[0012] In some embodiments, the first mounting frame includes two cylindrical structures, and the two cylindrical structures are respectively located on both sides of the telescopic tube; the second mounting frame includes two brackets respectively and movably disposed in the two cylindrical structures.

[0013] In some embodiments, the second mounting bracket includes a ring for mounting the telescopic tube.

[0014] Some embodiments of the present invention provide a ladder fire truck, which includes a telescopic tube and the telescopic tube fixing device of the ladder fire truck in the above embodiment.

[0015] In some embodiments, the telescopic tube includes at least a primary pipe and a secondary pipe, and one end of the secondary pipe is movably disposed in the primary pipe.

[0016] Based on the above technical solution, the present invention has at least the following beneficial effects:

[0017] In some embodiments, each level of the telescopic tube is connected to the ladder through a mounting frame so that the telescopic tube can be extended as the ladder is lifted; the position of the mounting frame used to install the telescopic tube is adjustable relative to the ladder to reduce the deformation of the telescopic tube during the lifting of the ladder, thereby alleviating the problem of excessive interference caused by the telescopic tube being extended longer with the ladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic diagram of a telescopic pipe fixing device for a ladder fire truck provided in some embodiments of the present invention;

[0020] Figure 2 A partial schematic diagram of a telescopic pipe fixing device for a ladder fire truck provided in some embodiments of the present invention;

[0021] Figure 3 A schematic front view of the assembly of the telescopic tube and the mounting frame provided in some embodiments of the present invention;

[0022] Figure 4 A schematic side view of the assembly of a telescopic tube and a mounting frame provided in some embodiments of the present invention.

[0023] Description of the reference numerals in the accompanying drawings:

[0024] 1-Ladder;

[0025] 2-mounting frame; 21-first mounting frame; 22-second mounting frame; 23-sliding groove; 24-guide member; 25-pulley; 26-ring member;

[0026] 3- Telescopic tube. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiment will be described clearly and completely below in conjunction with the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0029] like Figure 1 , Figure 2 , which is a schematic diagram of a telescopic tube fixing device for a ladder fire truck provided in some embodiments.

[0030] In some embodiments, the telescopic tube 3 is used to transport fire fighting fluid.

[0031] In some embodiments, the telescopic tube 3 includes at least a primary pipeline, a secondary pipeline and a tertiary pipeline, one end of the secondary pipeline is movably disposed in the primary pipeline, and one end of the tertiary pipeline is movably disposed in the secondary pipeline.

[0032] In some embodiments, the telescopic tube 3 includes more than three levels of pipelines, and one end of the pipeline of the next level is movably disposed in the pipeline of the previous level.

[0033] In some embodiments, the telescopic tube fixing device of the ladder fire truck includes a ladder 1. During operation, the telescopic tube 3 is extended along with the extension of the ladder 1 to transport the fire fighting fluid in the telescopic tube 3 to a certain height to achieve high-altitude fire fighting operations.

[0034] In some embodiments, the telescopic tube fixing device of the ladder fire truck includes a mounting frame 2, and each stage of the telescopic tube 3 is connected to the ladder 1 through the mounting frame 2, so that the telescopic tube 3 is extended as the ladder 1 is lifted.

[0035] In some embodiments, the position of the mounting frame 2 for mounting the telescopic tube 3 is adjustable relative to the ladder 1 to reduce the deformation of the telescopic tube 3 during the lifting process of the ladder 1 and alleviate the problem of excessive disturbance caused by the telescopic tube 3 being extended longer with the ladder 1.

[0036] In some embodiments, the position of the ends of the telescopic tube 3 fixed to the mounting frame 2 relative to the aerial ladder 1 can be adaptively adjusted, thereby effectively reducing the deflection and deformation of the telescopic tube 3 and the risk of water leakage and deformation at the joints of the various levels of the telescopic tube 3, thereby facilitating the smooth development of rescue work by high-meter aerial ladder fire trucks.

[0037] In some embodiments, the mounting frame 2 includes a first mounting frame 21 , and the first mounting frame 21 is fixed to the ladder 1 .

[0038] In some embodiments, the mounting frame 2 includes a second mounting frame 22, and the second mounting frame 22 is movably disposed on the first mounting frame 21 relative to the first mounting frame 21. The second mounting frame 22 is used to mount the telescopic tube 3.

[0039] In some embodiments, the second mounting frame 22 and the first mounting frame 21 are used to slide together to reduce the deformation of the telescopic tube 3, thereby achieving the fixation of the high-length ladder 1 and the telescopic tube 3 and reducing the leakage at the connection caused by excessive deflection of the telescopic tube 3.

[0040] In some embodiments, the first mounting frame 21 includes a cylindrical structure, and a portion of the second mounting frame 22 is movably disposed in the cylindrical structure.

[0041] In some embodiments, Figure 3 As shown, a slide groove 23 is provided on the side wall of the cylindrical structure, and a guide member 24 is provided at the portion of the second mounting frame 22 located inside the cylindrical structure. The end of the guide member 24 is located in the slide groove 23 and can move along the slide groove 23 .

[0042] In some embodiments, the telescopic tube 3 is disposed below the aerial ladder 1 , and the telescopic tube 3 is mounted to the aerial ladder 1 through the second mounting frame 22 and the first mounting frame 21 .

[0043] like Figure 2As shown, after the telescopic tube 3 is extended with the ladder 1, when the ladder 1 is deformed, the position of the telescopic tube 3 relative to the ladder 1 can be adjusted through the slide groove 23 of the first mounting frame 21 to reduce the deformation of the telescopic tube 3, thereby achieving the purpose of reducing the deflection deformation of the telescopic tube 3.

[0044] In some embodiments, the guide member 24 includes a bolt, and both ends of the bolt are respectively located in the slide groove 23 of the side wall of the cylindrical structure, and both ends of the bolt have parts extending outside the cylindrical structure, and both ends of the bolt are provided with nuts at the parts extending outside the cylindrical structure. The use of double nuts to lock and fix the guide member 24 is conducive to retaining a preset gap between the part of the second mounting frame 22 located in the cylindrical structure and the inner wall of the cylindrical structure, so as to increase the smoothness of movement.

[0045] In some embodiments, Figure 3 , Figure 4 As shown, the mounting frame 2 includes a pulley 25, which is arranged in the cylindrical structure and at the position where the second mounting frame 22 is located in the cylindrical structure to reduce the friction between the position where the second mounting frame 22 is located in the cylindrical structure and the inner wall of the cylindrical structure.

[0046] In some embodiments, in order to allow the first mounting frame 21 and the second mounting frame 22 to move relatively smoothly, the guide member 24 passes through the pulley 25, and the two ends of the guide member 24 are respectively located in the slide groove 23 of the side wall of the cylindrical structure, and a set gap is left between the pulley 25 and the inner wall of the cylindrical structure.

[0047] When the second mounting frame 22 is running relative to the first mounting frame 21, when the second mounting frame 22 is deflected, the part of the second mounting frame 22 located in the cylindrical structure contacts the inner wall of the cylindrical structure through the pulley 25, and the pulley 25 rotates. The rotation can effectively reduce friction, making the relative movement between the first mounting frame 21 and the second mounting frame 22 smoother.

[0048] In some embodiments, the pulley 25 includes a nylon wheel, which helps to reduce friction and improve the smoothness of movement.

[0049] In some embodiments, the first mounting frame 21 includes two cylindrical structures, which are respectively located on both sides of the telescopic tube 3; the second mounting frame 22 includes two brackets which are respectively and movably arranged in the two cylindrical structures.

[0050] In some embodiments, the second mounting bracket 22 includes an annular member 26 , and the telescopic tube 3 is mounted inside the annular member 26 .

[0051] In some embodiments, the telescopic tube 3 is inserted into the annular member 26 , and two sides of the annular member 26 are respectively fixedly connected to one end of a bracket, and the other ends of the two brackets are respectively and movably disposed in the two cylindrical structures.

[0052] Optionally, two sides of the annular member 26 are respectively connected to one end of a bracket through a combination structure of bolts and nuts.

[0053] Some embodiments provide a ladder fire truck, which includes a telescopic tube 3 and the telescopic tube fixing device of the ladder fire truck in the above embodiment.

[0054] In some embodiments, the aerial ladder fire truck includes a chassis, on which is mounted a lifting aerial ladder 1 and a telescopic tube 3 for conveying fire-fighting fluid. During operation, the operator extends the telescopic tube 3 by lifting the aerial ladder 1 to convey the fire-fighting fluid in the telescopic tube 3 to a certain height, thereby achieving high-altitude firefighting operations.

[0055] The ladder fire truck includes a fire fighting system. The fire fighting system includes a fire fighting water pump, a fire fighting water monitor, a fire fighting valve, a foam mixing system, a water diversion system, various display instruments, fire fighting pipes, a fire fighting liquid tank, etc. The fire fighting medium can be pressurized and transported through the fire fighting water pump, and sprayed to the fire scene through the fire fighting water monitor to extinguish the fire.

[0056] In some embodiments, the telescopic tube 3 includes at least a primary pipe and a secondary pipe, and one end of the secondary pipe is movably disposed in the primary pipe.

[0057] In some embodiments, the telescopic tube 3 includes a multi-stage pipeline made of stainless steel or aluminum alloy, and the multi-stage pipeline is telescopically connected together through a medium such as nylon seal to achieve telescopic effect.

[0058] In the description of the present invention, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the above components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A telescopic pipe fixing device for a ladder fire truck, characterized in that: include Ladder (1); and A mounting frame (2), each stage of the telescopic pipe (3) is connected to the ladder (1) through the mounting frame (2), so that the telescopic pipe (3) is extended as the ladder (1) is lifted; the position of the mounting frame (2) for mounting the telescopic pipe (3) is adjustable relative to the ladder (1), so as to reduce the deformation of the telescopic pipe (3) during the lifting of the ladder (1); The mounting frame (2) comprises: A first mounting frame (21) fixedly mounted on the ladder (1); as well as a second mounting frame (22), movably arranged on the first mounting frame (21) relative to the first mounting frame (21), the second mounting frame (22) being used for mounting the telescopic tube (3); The first mounting frame (21) comprises two cylindrical structures, the two cylindrical structures are respectively located on both sides of the telescopic tube (3); the second mounting frame (22) comprises two brackets respectively and movably arranged in the two cylindrical structures; The second mounting frame (22) comprises a ring member (26) for mounting the telescopic tube (3); A slide groove (23) is provided on the side wall of the cylindrical structure, a guide member (24) is provided at a portion of the second mounting frame (22) located inside the cylindrical structure, and an end portion of the guide member (24) is slidably disposed in the slide groove (23); The guide member (24) comprises a bolt, the two ends of which are respectively located in the slide grooves (23) of the side wall of the cylindrical structure, and the two ends of the bolt are provided with nuts at the parts extending out of the cylindrical structure; The mounting frame (2) comprises a pulley (25) which is arranged at a position where the second mounting frame (22) is located inside the cylindrical structure, so as to reduce friction between the position where the second mounting frame (22) is located inside the cylindrical structure and the inner wall of the cylindrical structure.

2. A ladder fire truck, characterized in that: It comprises a telescopic tube (3) and a telescopic tube fixing device for a ladder fire truck as claimed in claim 1.

3. The ladder fire truck according to claim 2, characterized in that: The telescopic pipe (3) comprises at least a primary pipe and a secondary pipe, and one end of the secondary pipe is movably arranged in the primary pipe.

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