Water hose reel unloading mechanism and fire-fighting vehicle

Abstract

The utility model aims to disclose a water hose reel getting-off mechanism and a fire-fighting vehicle, and relates to the technical field of fire fighting, flood drainage and emergency rescue, the water hose reel getting-off mechanism comprises a carriage, a getting-off mechanism and a water hose reel assembly; the water hose reel assembly comprises a rectangular frame, a first reel containing space and a second reel containing space, wherein the first reel containing space and the second reel containing space are arranged on the rectangular frame in a stacked mode. The getting-off mechanism comprises a first hinge seat, a second hinge seat, a third hinge seat, a fourth hinge seat and a pitching oil cylinder. A first cross rod is arranged between the first hinge seat and the second hinge seat, a second cross rod is arranged between the third hinge seat and the fourth hinge seat, and a pitching oil cylinder is arranged between the first cross rod and the second cross rod. The device has the technical effects that the pitching oil cylinder drives the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod to swing, the rectangular frame body is moved from the interior of the carriage to the exterior of the carriage and descends to a state close to the ground, and two stacked water hose reels can be quickly unloaded.

Description

Technical Field

[0001] The utility model relates to the technical fields of fire fighting and flood drainage and emergency rescue, in particular to a hose reel dismounting mechanism and a fire truck. Background Art

[0002] Fire trucks and flood drainage and emergency rescue vehicles belong to emergency vehicles and play an irreplaceable role in fire fighting, flood fighting and emergency rescue, and emergency drainage. At present, emergency vehicles usually carry several reels of hoses. Since the weight of a single reel of hose exceeds 100 kg, there are defects in heavy loading and unloading. Manual loading and unloading is time-consuming and laborious, affecting emergency rescue.

[0003] In view of this, there is an urgent need to develop a new type of hose reel dismounting mechanism and a fire truck to overcome the above defects. Summary of the Invention

[0004] To solve the above technical problems, the purpose of the utility model is to disclose a hose reel dismounting mechanism and a fire truck.

[0005] The first invention purpose of the utility model is to provide a hose reel dismounting mechanism.

[0006] The second invention purpose of the utility model is to provide a fire truck.

[0007] To achieve the above first invention purpose, the utility model provides a hose reel dismounting mechanism, which comprises a carriage, a dismounting mechanism and a hose reel assembly;

[0008] The hose reel assembly comprises a rectangular frame body and a first reel accommodating space and a second reel accommodating space which are stacked in the rectangular frame body;

[0009] The dismounting mechanism comprises a first hinge seat, a second hinge seat, a third hinge seat, a fourth hinge seat and a pitching oil cylinder. The first hinge seat and the second hinge seat are installed on the bottom surface of the carriage, and the third hinge seat and the fourth hinge seat are installed on the top of the rectangular frame body;

[0010] The first hinge seat is provided with a first hinge point and a second hinge point, the second hinge seat is provided with a third hinge point and a fourth hinge point, the third hinge seat is provided with a fifth hinge point and a sixth hinge point, and the fourth hinge seat is provided with a seventh hinge point and an eighth hinge point;

[0011] A first connecting rod is arranged between the first hinge point and the fifth hinge point, a second connecting rod is arranged between the second hinge point and the sixth hinge point, a third connecting rod is arranged between the third hinge point and the seventh hinge point, and a fourth connecting rod is arranged between the fourth hinge point and the eighth hinge point;

[0012] A first cross bar is arranged between the first hinge seat and the second hinge seat, a second cross bar is arranged between the third hinge seat and the fourth hinge seat, and a pitching oil cylinder is arranged between the first cross bar and the second cross bar. The pitching oil cylinder drives the second cross bar to pitch with the first cross bar as a fulcrum.

[0013] Preferably, two pitching oil cylinders are provided, one pitching oil cylinder is close to the first hinge seat, and the other pitching oil cylinder is close to the second hinge seat.

[0014] Preferably, the connecting lines of the first hinge point, the second hinge point, the fifth hinge point and the sixth hinge point form a first parallelogram;

[0015] The connecting lines of the third hinge point, the fourth hinge point, the seventh hinge point and the eighth hinge point form a second parallelogram.

[0016] Preferably, an avoidance inclined plane is arranged at the bottom of the rectangular frame body.

[0017] Preferably, when the pitching oil cylinder is in a contracted state, the hose reel assembly is retracted into the carriage.

[0018] Preferably, when the pitching oil cylinder is in a contracted state, the pitching oil cylinder has a first included angle with the vertical plane.

[0019] Preferably, the first included angle is 2° - 5°.

[0020] Preferably, when the pitching oil cylinder is in an extended state, the hose reel assembly is sent out of the carriage and descends to a state close to the ground.

[0021] Preferably, when the pitching oil cylinder is in an extended state, the pitching oil cylinder has a second included angle with the horizontal plane, and the second included angle is 10° - 15°.

[0022] Based on the same inventive principle, to achieve the above-mentioned second inventive purpose, the present utility model provides a fire truck, which includes the hose reel lower vehicle mechanism of the first invention.

[0023] Compared with the prior art, the technical effects of the present utility model are as follows:

[0024] The rectangular frame body of the present utility model can accommodate two stacked hose reels. By driving the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod to swing through the pitching oil cylinder, with the rectangular frame body always remaining vertical, the rectangular frame body is moved from inside the carriage to outside the carriage and descends to a state close to the ground, realizing the quick getting-off of two stacked hose reels. When recovering the hose reels, just operate in the reverse direction, saving manpower and improving the efficiency of getting the hose reels on and off the vehicle. Description of the Drawings

[0025] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a schematic three-dimensional structure diagram of a fire truck of the present invention.

[0027] Figure 2 It is a side view of the hose reel lowering mechanism of the present invention when the pitching cylinder is in a retracted state.

[0028] Figure 3 It is a schematic three-dimensional structure diagram of the hose reel lowering mechanism of the present invention.

[0029] Figure 4 It is a side view of the hose reel lowering mechanism of the present invention when the pitching cylinder is in an extended state.

[0030] Figure 5 It is a schematic three-dimensional structure diagram of the hose reel lowering mechanism of the present invention.

[0031] Among them, 1. Compartment; 2. Lowering mechanism; 21. First hinge seat; 211. First hinge point; 212. Second hinge point; 22. Second hinge seat; 221. Third hinge point; 222. Fourth hinge point; 23. Third hinge seat; 231. Fifth hinge point; 232. Sixth hinge point; 24. Fourth hinge seat; 241. Seventh hinge point; 242. Eighth hinge point; 25. First connecting rod; 26. Second connecting rod; 27. Third connecting rod; 28. Fourth connecting rod; 3. Hose reel assembly; 31. Rectangular frame; 311. Avoidance inclined plane; 32. First reel accommodation space; 33. Second reel accommodation space; 4. First cross bar; 5. Second cross bar; 6. Pitching cylinder; a. First included angle; b. Second included angle. Specific embodiments

[0032] The following will describe the present invention in detail in conjunction with the various embodiments shown in the drawings. However, it should be noted that these embodiments are not limitations on the present invention. Any equivalent transformation or substitution in terms of function, method, or structure made by those of ordinary skill in the art based on these embodiments shall fall within the protection scope of the present invention.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 construed as a limitation to the present utility model.

[0034] Embodiment 1

[0035] Refer Figures 1 to 5 As shown, this embodiment discloses a specific implementation manner of a hose reel lowering mechanism for a vehicle.

[0036] The hose reel lowering mechanism for a vehicle, refer to Figures 1 to 5 , includes a carriage 1, a lowering mechanism 2 and a hose reel assembly 3; the hose reel assembly 3 includes a rectangular frame 31 and a first reel accommodating space 32 and a second reel accommodating space 33 stacked in the rectangular frame 31, and a hose reel is placed in each of the first reel accommodating space 32 and the second reel accommodating space 33; the lowering mechanism 2 includes a first hinge seat 21, a second hinge seat 22, a third hinge seat 23, a fourth hinge seat 24 and a pitching oil cylinder 6, the first hinge seat 21 and the second hinge seat 22 are installed on the bottom surface of the carriage 1, and the third hinge seat 23 and the fourth hinge seat 24 are installed on the top of the rectangular frame 31; the first hinge seat 21 is provided with a first hinge point 211 and a second hinge point 212, the second hinge seat 22 is provided with a third hinge point 221 and a fourth hinge point 222, the third hinge seat 23 is provided with a fifth hinge point 231 and a sixth hinge point 232, and the fourth hinge seat 24 is provided with a seventh hinge point 241 and an eighth hinge point 242; a first connecting rod 25 is arranged between the first hinge point 211 and the fifth hinge point 231, a second connecting rod 26 is arranged between the second hinge point 212 and the sixth hinge point 232, a third connecting rod 27 is arranged between the third hinge point 221 and the seventh hinge point 241, and a fourth connecting rod 28 is arranged between the fourth hinge point 222 and the eighth hinge point 242; a first cross bar 4 is arranged between the first hinge seat 21 and the second hinge seat 22, a second cross bar 5 is arranged between the third hinge seat 23 and the fourth hinge seat 24, and a pitching oil cylinder 6 is arranged between the first cross bar 4 and the second cross bar 5, and the pitching oil cylinder 6 drives the second cross bar 5 to pitch with the first cross bar 4 as a fulcrum.

[0037] Specifically, refer to Figures 1 to 5 , Figure 2It is a side view of the hose reel lowering mechanism when the pitching cylinder is in the retracted state. Figure 4 It is a side view of the hose reel lowering mechanism when the pitching cylinder is in the extended state; to achieve a stable change from Figure 2 the state to Figure 4 the state shown, the connecting lines of the first hinge point 211, the second hinge point 212, the fifth hinge point 231, and the sixth hinge point 232 form a first parallelogram. The first parallelogram is shown by the dotted line in Figure 2 The connecting lines of the third hinge point 221, the fourth hinge point 222, the seventh hinge point 241, and the eighth hinge point 242 form a second parallelogram. The second parallelogram is shown by the dotted line in Figure 5 The pitching cylinders 6 are provided in two. One pitching cylinder 6 is close to the first hinge seat 21, and the other pitching cylinder 6 is close to the second hinge seat 6. The pitching cylinder 6 close to the first hinge seat 21 drives the first link 25 and the second link 26 to swing, and the pitching cylinder 6 close to the second hinge seat 22 drives the third link 27 and the fourth link 28 to swing, so as to make the top of the rectangular frame 31 receive uniform force.

[0038] The working principle of the hose reel getting on and off the vehicle is as follows: Figure 1 It is the state where the hose reel assembly 3 gets off the vehicle and approaches the ground; when the fire truck reaches the predetermined position, the hose reel assembly 3 is in the states shown in Figure 2 and Figure 3 At this time, the pitching cylinder 6 is in the retracted state, and the hose reel assembly 3 is retracted into the carriage 1. At this time, the pitching cylinder 6 has a first included angle a with the vertical plane, and the first included angle a is 2° - 5°, preferably 2.7°. The existence of the first included angle a makes the start of the pitching cylinder 6 smoother; start the pitching cylinder 6 to make the pitching cylinder 6 in the extended state. Specifically, refer to Figure 4 and Figure 5 . The hose reel assembly 3 is sent outside the carriage 1 and descends to a state close to the ground. At this time, the pitching cylinder 6 has a second included angle b with the horizontal plane, and the second included angle b is 10° - 15°, preferably 11.5°. The existence of the second included angle b makes the retraction of the pitching cylinder 6 smoother; during the process that the rectangular frame 31 extends out of the carriage 1 and gradually descends to the ground, to avoid interference between the rectangular frame 31 and the bottom surface of the carriage 1, a relief inclined surface 311 is provided at the bottom of the rectangular frame 31. The rectangular frame 31 of this embodiment can accommodate two stacked hose reels. By driving the first link 25, the second link 26, the third link 27, and the fourth link 28 to swing by the pitching cylinder 6, and under the condition that the rectangular frame 31 always remains vertical, the rectangular frame 31 is moved from inside the carriage to outside the carriage and descends to a state close to the ground, that is, changed from the state shown in Figure 2 toFigure 4 In the state shown, the rapid dismounting of two stacked hose reels is achieved. When recovering the hose reel, reverse operation can be performed, saving manpower and improving the efficiency of the hose reel getting on and off the vehicle.

[0039] Embodiment 2

[0040] This embodiment provides a fire truck, including the hose reel dismounting mechanism described in Embodiment 1, which realizes the rapid swing of the hose reel assembly 3 from inside the vehicle to outside the carriage and close to the ground, or the rapid swing back from the state outside the carriage and close to the ground to inside the carriage. The efficiency of the hose reel getting on and off the vehicle is greatly improved, saving manpower.

[0041] For the technical solutions of a fire truck disclosed in this embodiment that have the same parts as those in Embodiment 1, please refer to what is described in Embodiment 1 and will not be elaborated here.

Claims

1. The hose reel dismounting mechanism is characterized by: It includes a carriage, a disembarkation mechanism and a hose reel assembly; The hose reel assembly comprises a rectangular frame and a first reel accommodating space and a second reel accommodating space stacked on the rectangular frame; The vehicle disembarking mechanism comprises a first articulated seat, a second articulated seat, a third articulated seat, a fourth articulated seat and a pitching cylinder, wherein the first articulated seat and the second articulated seat are mounted on the bottom surface of the vehicle compartment, and the third articulated seat and the fourth articulated seat are mounted on the top of the rectangular frame; The first hinge seat is provided with a first hinge point and a second hinge point, the second hinge seat is provided with a third hinge point and a fourth hinge point, the third hinge seat is provided with a fifth hinge point and a sixth hinge point, and the fourth hinge seat is provided with a seventh hinge point and an eighth hinge point; A first connecting rod is arranged between the first hinge point and the fifth hinge point, a second connecting rod is arranged between the second hinge point and the sixth hinge point, a third connecting rod is arranged between the third hinge point and the seventh hinge point, and a fourth connecting rod is arranged between the fourth hinge point and the eighth hinge point; A first cross bar is arranged between the first articulated seat and the second articulated seat, a second cross bar is arranged between the third articulated seat and the fourth articulated seat, and a pitch cylinder is arranged between the first cross bar and the second cross bar, and the pitch cylinder drives the second cross bar to pitch with the first cross bar as a fulcrum.

2. The hose reel dismounting mechanism according to claim 1, characterized in that: Two pitch cylinders are provided, one of which is close to the first hinged seat, and the other of which is close to the second hinged seat.

3. The hose reel dismounting mechanism according to claim 1, characterized in that: The connecting lines of the first hinge point, the second hinge point, the fifth hinge point and the sixth hinge point form a first parallelogram; The connecting lines of the third hinge point, the fourth hinge point, the seventh hinge point and the eighth hinge point form a second parallelogram.

4. The hose reel dismounting mechanism according to claim 1, characterized in that: The bottom of the rectangular frame is provided with an avoidance slope.

5. The hose reel dismounting mechanism according to any one of claims 1 to 4, characterized in that: When the pitch cylinder is in a retracted state, the hose reel assembly is retracted into the carriage.

6. The hose reel dismounting mechanism according to claim 5, characterized in that: When the pitch cylinder is in a retracted state, the pitch cylinder has a first angle with a vertical plane.

7. The hose reel dismounting mechanism according to claim 6, characterized in that: The first angle is 2°-5°.

8. The hose reel dismounting mechanism according to any one of claims 1 to 4, characterized in that: When the pitch cylinder is in the deployed state, the hose reel assembly is sent to the outside of the carriage and lowered to a state close to the ground.

9. The hose reel dismounting mechanism according to claim 8, characterized in that: When the pitch cylinder is in the deployed state, a second angle is formed between the pitch cylinder and the horizontal plane, and the second angle is 10°-15°.

10. A fire fighting vehicle, characterized in that: It comprises the hose reel dismounting mechanism as described in any one of claims 1-9.

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