Rear-mounted and rear-collecting type fire hose collecting device and fire-fighting vehicle

Abstract

The utility model aims to disclose a rear-mounted and rear-collecting type fire hose collecting device and a fire-fighting vehicle, and relates to the technical field of fire-fighting equipment, the rear-mounted and rear-collecting type fire hose collecting device comprises a hose accommodating box body and a hose collecting assembly arranged at the rear end of the hose accommodating box body; the hose winding assembly comprises a reel assembly, a reciprocating type lead screw assembly and a hose guiding assembly. The reel assembly is arranged at the rear end of the water hose containing box body. The water hose guiding assembly comprises a guiding part, and the reciprocating type lead screw assembly drives the guiding part to move in a reciprocating mode. The fire-fighting vehicle has the technical effects that under the condition that the fire-fighting vehicle advances, the water hose passes through the side of the fire-fighting vehicle and is wound from the tail of the fire-fighting vehicle, and the water hose is wound on the reel assembly through the reciprocating lead screw assembly and the water hose guide assembly, so that the fire-fighting vehicle is more convenient to use. And the water hose does not need to pass through the top of the vehicle head and then is collected, so that the hose collecting mechanism is greatly simplified and more convenient, and the cost of the hose collecting mechanism is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting equipment, in particular to a rear-mounted and rear-retracted fire hose retracting device and a fire truck. Background Art

[0002] At present, the automatic hose retraction of a fire truck is mainly carried out from the front of the vehicle or the side of the vehicle.

[0003] When retracting the hose from the front of the vehicle, the hose passes over the top of the vehicle head and then is retracted into the carriage. The defects are that the retracting mechanism is relatively complex and spans the entire top of the vehicle head, resulting in a high cost; in addition, when retracting the hose from the front of the vehicle, the vehicle speed and the hose retracting speed must be highly consistent, otherwise the hose will be subjected to a retracting tension, or the hose will enter the bottom of the vehicle and there is a risk of being crushed by the wheels.

[0004] When retracting the hose from the side of the vehicle, the hose enters the carriage through the side of the vehicle. The defects are that the hose is prone to torsion during the retraction process, which is likely to damage the hose and affect the neat storage after retraction, and the utilization rate of the storage space is low.

[0005] In view of this, it is necessary to develop a rear-mounted and rear-retracted fire hose retracting device and a fire truck to overcome the defects of the prior art. Summary of the Invention

[0006] To solve the above technical problems, the purpose of the utility model is to disclose a rear-mounted and rear-retracted fire hose retracting device and a fire truck.

[0007] The first invention object of the utility model is to provide a rear-mounted and rear-retracted fire hose retracting device.

[0008] The second invention object of the utility model is to provide a fire truck.

[0009] To achieve the above first invention object, the utility model provides a rear-mounted and rear-retracted fire hose retracting device, which includes a hose accommodating box body and a retracting assembly arranged at the rear end of the hose accommodating box body;

[0010] The retracting assembly includes a reel assembly, a reciprocating lead screw assembly and a hose guiding assembly;

[0011] The reel assembly is arranged at the rear end of the hose accommodating box body;

[0012] The hose guiding assembly includes a guiding part, and the reciprocating lead screw assembly drives the guiding part to reciprocate;

[0013] The hose passes through the rear end of the hose accommodating box body, then passes through the guiding part and is wound on the reel assembly.

[0014] Preferably, the hose accommodating box body includes a bottom plate, a pair of side frames and a box top;

[0015] A first guide roller in a vertical state is provided at the tail of each of the side frames.

[0016] Preferably, a second guide roller and a third guide roller in a horizontal state are provided between the pair of side frames.

[0017] Preferably, a rolling shutter door assembly is provided between the pair of side frames.

[0018] Preferably, the reciprocating lead screw assembly further includes a lead screw and a guide post, and the lead screw drives the guiding portion to reciprocate along the guide post.

[0019] Preferably, the guiding portion includes a sliding portion, a pair of vertical guide rollers, a first horizontal guide roller and a second horizontal guide roller;

[0020] A first space is defined between the second guide roller and the third guide roller;

[0021] A second space is defined between a pair of the vertical guide rollers;

[0022] A third space is defined between the first horizontal guide roller and the second horizontal guide roller.

[0023] Preferably, after passing through the first guide roller, the fire hose passes through the first space, the second space and the third space in sequence and is wound on the reel assembly.

[0024] Preferably, the first horizontal guide roller is installed on the side of the bottom of a pair of the vertical guide rollers;

[0025] The second horizontal guide roller is installed on the sliding portion through a swing rod.

[0026] Preferably, the lead screw is driven by a motor to rotate forward or backward.

[0027] Based on the same inventive principle, to achieve the second inventive purpose as described above, the present utility model provides a fire truck, which includes a cab and a chassis, and the rear-mounted and rear-receiving fire hose receiving device of the first invention is installed on the chassis.

[0028] Compared with the prior art, the technical effects of the present utility model are as follows:

[0029] When the fire truck is moving forward, the fire hose of the present utility model passes by the side of the fire truck and is received from the tail of the fire truck, and the fire hose is wound on the reel assembly through the reciprocating lead screw assembly and the fire hose guiding assembly. The fire hose no longer needs to be received after passing over the top of the cab, nor is it directly received on the side of the vehicle, which greatly simplifies the receiving mechanism and makes it more convenient, and significantly reduces the cost of the receiving mechanism. Description of the Drawings

[0030] 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 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.

[0031] Figure 1 It is a schematic perspective view of the post - rear - retracting fire hose retracting device of the present invention.

[0032] Figure 2 It is a schematic perspective view of the retracting assembly of the present invention.

[0033] Figure 3 It is a schematic perspective view of the retracting assembly of the present invention.

[0034] Figure 4 It is a schematic perspective view of the guiding part of the present invention.

[0035] Among them, 1. Hose accommodation box body; 11. Bottom plate; 12. Side frame; 121. First guiding roller; 122. Second guiding roller; 123. Third guiding roller; 124. Rolling door assembly; 13. Box top; 2. Retracting assembly; 21. Reel assembly; 22. Reciprocating lead screw assembly; 221. Lead screw; 222. Guide post; 23. Hose guiding assembly; 231. Guiding part; 2311. Sliding part; 2312. Vertical guiding roller; 2313. First horizontal guiding roller; 2314. Second horizontal guiding roller; 2315. Swing rod; 3. Hose; 4. Motor; 5. Vehicle head; 6. Chassis. Specific embodiments

[0036] The following will describe the present invention in detail in conjunction with the 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 belongs to the protection scope of the present invention.

[0037] In the description of the present invention, it should be understood that the orientation or positional relationships 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. are based on the orientation or positional relationships shown in the drawings. These 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. Therefore, it should not be construed as a limitation on the present invention.

[0038] Example 1

[0039] Refer Figures 1 to 4 As shown, this embodiment discloses a specific implementation of a rear-mounted and rear-retracted fire hose retracting device.

[0040] This embodiment provides a rear-mounted and rear-retracted fire hose retracting device, including a hose accommodating box body 1 and a retracting assembly 2 arranged at the rear end of the hose accommodating box body 1; the retracting assembly 2 includes a reel assembly 21, a reciprocating lead screw assembly 22 and a hose guiding assembly 23; the reel assembly 21 is arranged at the rear end of the hose accommodating box body 1; the hose guiding assembly 23 includes a guiding part 231, and the reciprocating lead screw assembly 22 drives the guiding part 231 to reciprocate; the hose 3 passes through the rear end of the hose accommodating box body 1 and then passes through the guiding part 231 and is wound on the reel assembly 21.

[0041] Specifically, refer to Figure 1 , the dotted line represents the hose 3, the solid arrow represents the forward direction of the fire truck, and the dotted arrow represents the hose retracting direction. The hose accommodating box body 1 includes a bottom plate 11, a pair of side frames 12 and a box top 13. A vertically arranged first guiding roller 121 is arranged at the tail of each side frame 12; a horizontally arranged second guiding roller 122 and a third guiding roller 123 are arranged between the pair of side frames 12, and a rolling door assembly 124 is arranged between the pair of side frames 12. The rolling door assembly 124 is close to the box top 13. When the hose is not retracted, the rolling door assembly 124 can release the rolling door and close the hose accommodating box body 1. It should be noted that in addition to the rolling door assembly 124, this embodiment can also adopt an upward-opening door or a double-leaf door. When choosing a double-leaf door, the first guiding roller 121 can be installed inside the side frame 12.

[0042] Refer Figures 1 to 4As shown in the figure, the principle of the tail water hose winding is as follows: The reel assembly 21 is installed at the rear end of the water hose storage box 1; the reciprocating lead screw assembly 22 further includes a lead screw 221 and a guide post 222. The lead screw 221 drives the guiding part 231 to reciprocate along the guide post 222, and the lead screw 221 and the guide post 222 are arranged in parallel; the guiding part 231 includes a sliding part 2311, a pair of vertical guide rollers 2312, a first horizontal guide roller 2313 and a second horizontal guide roller 2314. The lead screw 221 drives the sliding part 2311 to reciprocate along the guide post 222; between the second guide roller 122 and the third guide roller 123 is a first space; between a pair of the vertical guide rollers 2312 is a second space. The heights of the first space and the second space are quite the same. The winding height of the water hose 3 is lifted by the first space, which can reduce the resistance generated by winding; between the first horizontal guide roller 2313 and the second horizontal guide roller 2314 is a third space. When winding the water hose, after the water hose 3 passes through the first guide roller 121, it successively passes through the first space, the second space and the third space and then winds around the reel assembly 21. During the winding process, the water hose 3 is restricted and guided by the first space, the second space and the third space. Since the surfaces of the first guide roller 121, the second guide roller 122, the third guide roller 123, the vertical guide rollers 2312, the first horizontal guide roller 2313 and the second horizontal guide roller 2314 are all smooth arc surfaces, the friction is reduced while guiding; during the winding process, in order to adapt to the increasing winding diameter, the first horizontal guide roller 2313 is installed on the side of the bottom of a pair of the vertical guide rollers 2312, and the second horizontal guide roller 2314 is installed on the sliding part 2311 through a swing rod 2315. With the increasing winding diameter, driven by the water hose 3, the second horizontal guide roller 2314 and the swing rod 2315 swing. The water hose is restricted in the third space between the first horizontal guide roller 2313 and the second horizontal guide roller 2314, which can prevent large fluctuations of the water hose 3; in order to enable the reel assembly 21 to wind more water hoses, the lead screw 221 is driven by the motor 4 to rotate forward or backward, so that the water hose 3 is wound around the reel assembly 21 reciprocally.

[0043] In this embodiment, when the fire truck is moving forward, the water hose 3 passes by the side of the fire truck and is wound from the tail of the fire truck. The water hose 3 is wound around the reel assembly 21 through the reciprocating lead screw assembly 22 and the water hose guiding assembly 23. The water hose no longer needs to be wound after passing over the top of the vehicle head, nor is it directly wound on the side of the vehicle, which greatly simplifies the winding mechanism and makes it more convenient, and the cost of the winding mechanism is greatly reduced.

[0044] See Figure 1 , when the driving speed of the fire truck is greater than the winding speed, the water hose 3 presents Figure 1The winding state shown by the dashed line; when the driving speed of the fire truck is less than the belt winding speed, the water hose 3 will touch the side frame 12, and the first guide roller 121 can effectively reduce the friction between the water hose 3 and the side frame 12. The height of the first guide roller 121 can be set according to the actual situation, either covering almost the entire height of the side frame 12 or covering a part of the height of the side frame 12.

[0045] Embodiment 2

[0046] This embodiment provides a fire truck, including a vehicle head 5 and a chassis 6. The rear-mounted and rear-wound fire hose winding device described in Embodiment 1 is installed on the chassis 6. When the fire truck is moving forward, the water hose 3 passes by the side of the fire truck and is wound from the tail of the fire truck, and the water hose 3 is wound on the reel assembly 21 through the reciprocating lead screw assembly 22 and the water hose guiding assembly 23. The water hose no longer needs to be wound after passing over the vehicle head, nor is it directly wound on the side of the vehicle, which greatly simplifies the winding mechanism and makes it more convenient, and the cost of the winding mechanism is greatly reduced.

[0047] For the technical solutions of a fire truck disclosed in this embodiment that are the same as those in Embodiment 1, please refer to Embodiment 1 and will not be elaborated here.

Claims

1. A rear-mounted fire hose take-up device, characterized in that: It comprises a water hose containing box and a belt collecting assembly arranged at the rear end of the water hose containing box; The belt taking-up assembly includes a reel assembly, a reciprocating screw assembly and a water hose guide assembly; The reel assembly is arranged at the rear end of the hose accommodating box; The water hose guide assembly includes a guide portion, and the reciprocating screw assembly drives the guide portion to reciprocate; The water hose passes through the rear end of the water hose accommodating box, passes through the guide portion and is wound on the reel assembly.

2. The rear-mounted and rear-retractable fire hose take-up device according to claim 1, characterized in that: The hose containing box body comprises a bottom plate, a pair of side frames and a box top; A first guide roller in a vertical state is arranged at the tail of each side frame.

3. The rear-mounted and rear-retractable fire hose take-up device according to claim 2, characterized in that: A second guide roller and a third guide roller are provided in a horizontal state between the pair of side frames.

4. The rear-mounted and rear-retractable fire hose take-up device according to claim 2, characterized in that: A rolling door assembly is arranged between the pair of side frames.

5. The rear-mounted and rear-retractable fire hose take-up device according to claim 3, characterized in that: The reciprocating screw assembly also includes a screw and a guide column, and the screw drives the guide part to reciprocate along the guide column.

6. The rear-mounted and rear-retractable fire hose take-up device according to claim 5, characterized in that: The guide portion includes a sliding portion, a pair of vertical guide rollers, a first horizontal guide roller and a second horizontal guide roller; A first space is formed between the second guide roller and the third guide roller; A second space is provided between the pair of vertical guide rollers; A third space is between the first horizontal guide roller and the second horizontal guide roller.

7. The rear-mounted and rear-retractable fire hose take-up device according to claim 6, characterized in that: After passing through the first guide roller, the water hose passes through the first space, the second space and the third space in sequence and is then rolled up on the reel assembly.

8. The rear-mounted and rear-retractable fire hose take-up device according to claim 7, characterized in that: The first horizontal guide roller is installed on the side of the bottom of the pair of vertical guide rollers; The second horizontal guide roller is mounted on the sliding portion through a rocker rod.

9. The rear-mounted and rear-retractable fire hose take-up device according to claim 3, characterized in that: The screw rod is driven by a motor to rotate forward or reverse.

10. A fire fighting vehicle, characterized in that: It comprises a vehicle front and a chassis, wherein the rear-mounted fire hose take-up device as described in any one of claims 1 to 9 is installed on the chassis.

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