Water hose vehicle supporting structure, water hose winding and unwinding device and water hose fire truck

By installing the nose belt and belt collection mechanism of the water belt truck on the walking chassis, the problems of complex assembly and insufficient support of the traditional water belt fire truck are solved, and higher integration and longer service life are achieved.

CN222130864UActive Publication Date: 2024-12-10HUNAN DINGFENG EMERGENCY TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202420642365.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-29
Publication Date
2024-12-10
Estimated Expiration
2034-03-29

AI Technical Summary

Technical Problem

The belt-paving and belt-paving mechanism of traditional water belt fire trucks is complicated to assemble, has a large weight, and is prone to damage. It also bears a large tension during the belt-paving and belt-paving process, resulting in insufficient support strength of the car and short service life.

Method used

Install the nose belt management mechanism and belt collection mechanism on the walking chassis of the water belt fire truck. It is fixed by the chassis, support and mounting seat to transmit the tension during the belt collection process to the walking chassis, reducing the weight of the belt storage compartment and pulling force and increase support strength.

Benefits of technology

The assembly of the water belt retracting and releasing belt device is simplified, the integration is improved, the assembly difficulty is reduced, and the service life of the water belt fire truck is extended, and the risk of damage to the belt storage compartment is reduced.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222130864U_ABST
    Figure CN222130864U_ABST
Patent Text Reader

Abstract

The utility model relates to a water hose vehicle supporting structure, a water hose winding and unwinding device and a water hose fire truck. The water hose truck supporting structure is used for installing the machine head belt arranging mechanism on a walking chassis of a water hose fire truck. The water hose vehicle supporting structure comprises a bottom frame, two supporting pieces and a mounting base. The bottom frame is used for being fixed to a walking chassis of the water hose fire fighting truck. The two supporting pieces are arranged at intervals in the left-right direction of the water hose fire fighting truck. The two ends of each supporting piece are fixedly connected with the bottom frame and the installation base respectively. And the mounting seat is used for mounting the machine head belt arranging mechanism. Due to the arrangement of the water hose vehicle supporting structure, the service life of the water hose fire truck is prolonged, and meanwhile the water hose winding and unwinding device has the advantages of being high in integration degree and low in assembly difficulty.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

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

[0002] The hose fire truck is a special-purpose fire truck, which is mainly used to provide fire hoses for rescue to the main combat fire truck, and recycle the hoses and store them in a standby state after the rescue. It includes a drivable walking chassis, a driver's cab, a hose storage compartment, and a hose laying and collecting mechanism. A hose sorting device is arranged under the hose laying and collecting mechanism. During fire rescue, the operator opens the hose storage compartment, takes out the hose, and places one end of the hose at the first working position (such as the fire water source supply point). As the hose fire truck moves, the hose in the hose storage compartment is laid along the road to the second working position (such as the rescue fire extinguishing location), completing the laying of the hose. After the rescue is completed, the hose fire truck moves from the first working position to the second working position (or vice versa), and through the hose laying and collecting mechanism, the hose sorting device and other components, the hose is orderly recovered and stored in the hose storage compartment for the next use.

[0003] In traditional fire hose trucks, the belt laying and taking-up mechanism is directly installed on the roof of the belt storage compartment. However, this assembly method requires that many components of the belt laying and taking-up mechanism (such as power components, transmission components, arm supports, etc.) need to be installed on the belt storage compartment, and many components are in the compartment, making the assembly of the belt laying and taking-up mechanism cumbersome and difficult. In addition, the overall weight of the belt laying and taking-up mechanism is heavy, and it needs to withstand a large tensile force during the belt laying and taking-up process. Therefore, installing the belt laying and taking-up mechanism in the compartment requires a large supporting strength of the compartment, and long-term use can easily cause damage to the compartment. Utility Model Content

[0004] Based on this, it is necessary to provide a hose truck support structure, a hose retracting and releasing device, and a hose fire truck that are easy to assemble and can extend the service life of the hose storage compartment.

[0005] A hose truck support structure is used to install a head belt-straightening mechanism on the walking chassis of a hose fire truck. The hose truck support structure includes a chassis, two support members and a mounting seat; the chassis is used to be fixed on the walking chassis of the hose fire truck; the two support members are arranged at intervals along the left and right directions of the hose fire truck; the two ends of each support member are fixedly connected to the chassis and the mounting seat respectively; the mounting seat is used to install the head belt-straightening mechanism.

[0006] In one of the embodiments, the support member includes two support columns spaced apart along the front-to-rear direction of the hose fire truck; both ends of each support column are fixedly connected to the bottom of the base frame and the mounting seat respectively.

[0007] In one embodiment, the support member also includes a first connecting beam and a second connecting beam; the two ends of the first connecting beam are respectively fixedly connected to one end of the two support columns close to the base frame; the two ends of the second connecting beam are respectively fixedly connected to one end of the two support columns close to the mounting seat.

[0008] In one of the embodiments, a third connecting beam is fixedly connected between two adjacent support columns in the left-right direction of the hose fire truck.

[0009] In one of the embodiments, each support column is further provided with a first reinforcing rib and a second reinforcing rib at one end close to the base frame; in the front-to-rear direction of the hose fire truck, the first reinforcing rib is respectively fixedly connected to the base frame and the side of the corresponding support column away from the adjacent support column; in the left-to-right direction of the hose fire truck, the second reinforcing rib is respectively fixedly connected to the base frame and the side of the corresponding support column facing the adjacent support column.

[0010] In one embodiment, in the left-right direction of the hose fire truck, each support column is provided with a plurality of first reinforcing ribs at corresponding intervals; in the front-back direction of the hose fire truck, each support column is provided with a plurality of second reinforcing ribs at corresponding intervals.

[0011] In one embodiment, a first weight-reducing hole having the same shape as the edge of the first reinforcement rib is formed on the first reinforcement rib; and a second weight-reducing hole having the same shape as the edge of the second reinforcement rib is formed on the second reinforcement rib.

[0012] In one embodiment, the first reinforcing rib and the second reinforcing rib are both triangular plate structures; two adjacent sides of the first reinforcing rib are respectively fixedly connected to the corresponding support column and the base frame; two adjacent sides of the second reinforcing rib are respectively fixedly connected to the corresponding support column and the base frame.

[0013] A water hose retracting and releasing device comprises the water hose truck support structure, a machine head belt sorting mechanism and a machine head belt taking-up mechanism as described above; one end of the machine head belt sorting mechanism is detachably mounted on the mounting seat, and the other end is used for detachably mounting on the top of the belt storage compartment in the water hose fire truck; the machine head belt taking-up mechanism is mounted on one end of the machine head belt sorting mechanism close to the support member.

[0014] A water hose fire truck comprises a traveling chassis, a driver's cab, a belt storage box and the water hose retracting and releasing device as described above; the driver's cab and the belt storage box are both installed on the traveling chassis; the base frame is fixed on the traveling chassis, and the support member is located between the driver's cab and the belt storage box; the head belt sorting mechanism is detachably installed at the bottom of the belt storage box at one end away from the support member.

[0015] The above-mentioned hose truck support structure, hose retractable belt device and hose fire truck, the hose truck support structure is used to install the head belt handling mechanism and the head belt taking-up mechanism in the hose retractable belt device on the walking chassis, and bear most of the weight of the head belt handling mechanism and the head belt taking-up mechanism, and at the same time transfer most of the pulling force generated in the belt taking-up and belt laying process to the walking chassis, which greatly reduces the weight and pulling force borne by the belt storage compartment, and compared with the belt storage compartment, the support strength of the hose truck support structure is greater, so the setting of the hose truck support structure greatly prolongs the service life of the hose fire truck. Moreover, because the hose truck support structure is set, there is only one position for connection between the hose retractable belt device and the belt storage compartment, so the hose retractable belt device can be assembled independently, and the integration is high. Compared with the need to assemble various parts of the hose retractable belt device on the belt storage compartment, the assembly difficulty of this independently assembled hose retractable belt device in the present application is lower. Therefore, the arrangement of the above-mentioned hose truck support structure not only prolongs the service life of the hose fire truck, but also makes the hose retractable and retractable device have the advantages of high integration and low assembly difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a hose fire truck in one embodiment of the utility model;

[0017] Figure 2 for Figure 1 A schematic structural diagram of a hose truck support structure in a hose fire truck shown in FIG. 1 at one viewing angle;

[0018] Figure 3 for Figure 2 The structural schematic diagram of the water hose truck support structure shown in another perspective.

[0019] Explanation of reference numerals: 10, hose fire truck; 100, walking chassis; 200, driver's cab; 300, belt storage compartment; 400, hose retracting and releasing device; 410, hose truck supporting structure; 411, chassis; 412, supporting member; 4121, supporting column; 4122, first connecting beam; 4123, second connecting beam; 4124, first reinforcing rib; 41241, first weight-reducing hole; 4125, second reinforcing rib; 41251, second weight-reducing hole; 413, mounting seat; 414, third connecting beam; 420, machine head belt organizing mechanism; 430, machine head belt retracting mechanism. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] When describing positional relationships, unless otherwise specified, when an element is referred to as being "on" another element, it can be directly on the other element or there can be an intermediate element. It is also understood that when an element is referred to as being "between" two elements, it can be the only one between the two elements, or there can be one or more intermediate elements.

[0023] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0024] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0025] It should be noted that the medicinal bath liquid mentioned in the embodiments of the present invention refers to the medicinal liquid obtained by adding water to the medicinal materials and boiling them, or the medicinal liquid formed by grinding the medicinal materials into powder and then adding water, or the medicinal liquid obtained by soaking the medicinal materials in water for a long time.

[0026] See also Figure 1 The utility model provides a hose truck support structure 410, a hose retractable belt device 400 and a hose fire truck 10. The hose fire truck 10 includes a traveling chassis 100, a driver's cab 200, a belt storage compartment 300 and a hose retractable belt device 400. The driver's cab 200 and the belt storage compartment 300 are both installed on the traveling chassis 100. The hose retractable belt device 400 is fixed to the traveling chassis 100 at a position between the driver's cab 200 and the belt storage compartment 300.

[0027] The water hose retracting and releasing device 400 includes a water hose vehicle support structure 410, a machine head belt handling mechanism 420 and a machine head belt taking-up mechanism 430. The water hose vehicle support structure 410 is fixed to the traveling chassis 100. One end of the machine head belt handling mechanism 420 is detachably mounted on the water hose vehicle support structure 410, and the other end is detachably mounted on the top of the belt storage compartment 300. Specifically, one end of the machine head belt handling mechanism 420 is detachably connected to the top of the belt storage compartment 300 away from the driver's cab 200. One end of the machine head belt taking-up mechanism 430 is mounted on one end of the machine head belt handling mechanism 420 close to the water hose vehicle support structure 410.

[0028] Of course, it can be understood that in other embodiments, the water hose retracting and unreeling device 400 can also be arranged on other water hose vehicles that need to lay and retract the hose.

[0029] Please also read Figure 2 and Figure 3 In the preferred embodiment of the utility model, the hose truck support structure 410 is used to install the head belt management mechanism 420 on the walking chassis 100 of the hose fire truck 10. The hose truck support structure 410 includes a base frame 411, two support members 412 and a mounting seat 413.

[0030] The underframe 411 is used to be fixed on the walking chassis 100 of the hose fire truck 10. The underframe 411 can be a specially designed frame structure, or the original structure such as the subframe in the hose fire truck 10 can be used as the underframe 411.

[0031] Two support members 412 are arranged at intervals along the left and right directions of the hose fire truck 10. The two ends of each support member 412 are respectively fixedly connected to the base frame 411 and the mounting seat 413. The mounting seat 413 is used to install the head belt management mechanism 420. Among them, the left and right direction of the hose fire truck 10 is a direction perpendicular to the driving direction of the hose fire truck 10.

[0032] In the hose fire truck 10, the base frame 411 is fixed on the traveling chassis 100, and the support member 412 is located between the driver's cab 200 and the belt storage compartment 300 to achieve the fixed installation of the hose truck support structure 410 on the traveling chassis 100, and one end of the head belt sorting mechanism 420 is detachably mounted on the mounting seat 413, and the other end is detachably mounted on the top of the belt storage compartment 300 to achieve the installation of the head belt sorting mechanism 420.

[0033] Specifically, the chassis 411 is fixedly connected to the traveling chassis 100 by welding. Of course, in other embodiments, the chassis 411 can also be fixed to the traveling chassis 100 by screwing, riveting, etc.

[0034] The water hose truck support structure 410 is used to install the head belt-straightening mechanism 420 and the head belt-receiving mechanism 430 in the water hose retracting and unwinding device 400 on the walking chassis 100, and bear most of the weight of the head belt-straightening mechanism 420 and the head belt-receiving mechanism 430, and at the same time transmit most of the tension generated during the belt-receiving and laying process to the walking chassis 100, which greatly reduces the weight and tension borne by the belt storage compartment 300. Moreover, compared with the belt storage compartment 300, the support strength of the water hose truck support structure 410 is greater. Therefore, the setting of the water hose truck support structure 410 greatly extends the service life of the water hose fire truck 10.

[0035] Moreover, because the hose truck support structure 410 is provided, the hose retractable belt device 400 is connected to the belt storage box 300 at only one position, so the hose retractable belt device 400 can be independently assembled, and the integration is relatively high. Compared with the need to assemble various parts of the hose retractable belt device 400 on the belt storage box 300, the assembly difficulty of the independently assembled hose retractable belt device 400 in the present application is lower. Therefore, the provision of the above-mentioned hose truck support structure 410 not only prolongs the service life of the hose fire truck 10, but also makes the hose retractable belt device 400 have the advantages of high integration and low assembly difficulty.

[0036] In some embodiments, the support member 412 includes two support columns 4121 spaced apart along the front-rear direction of the hose fire truck 10. Both ends of each support column 4121 are fixedly connected to the bottom of the base frame 411 and the mounting seat 413, respectively.

[0037] Among them, the front and rear direction of the water hose fire truck 10 is consistent with the walking direction of the water hose fire truck 10, so the mounting seat 413 and the base frame 411 are connected by four support columns 4121, which greatly improves the stability of the mounting seat 413, and thus improves the stability of the water hose retracting and unretracting device 400 during the laying and retracting process.

[0038] Of course, in other embodiments, in order to improve the supporting strength of the hose truck supporting structure 410 , a plurality of supporting columns 4121 may be provided in each supporting member 412 , and the number of the supporting columns 4121 is greater than or equal to 3.

[0039] Furthermore, in some embodiments, the support member 412 further includes a first connecting beam 4122 and a second connecting beam 4123. Both ends of the first connecting beam 4122 are respectively fixedly connected to one end of the two supporting columns 4121 close to the bottom frame 411. Both ends of the second connecting beam 4123 are respectively fixedly connected to one end of the two supporting columns 4121 close to the mounting seat 413.

[0040] When the hose fire truck 10 is in a horizontal position, the first connecting beam 4122 and the second connecting beam 4123 are respectively located at the lower end and the upper end of the support column 4121 to improve the structural stability of the support member 412, further improving the structural stability of the hose truck support structure 410, and making the belt laying and belt collecting operations smoother.

[0041] Furthermore, in some embodiments, in the left and right directions of the hose fire truck 10, a third connecting beam 414 is fixedly connected between two adjacent support columns 4121. That is, the two support members 412 are connected and fixed by two third connecting beams 414, so that the two support members 412 are fixed as a whole, further improving the structural stability of the hose truck support structure 410, making the laying and winding of the hose more stable.

[0042] Specifically, the third connecting beam 414 is located at one end of the support column 4121 close to the mounting seat 413 to improve the stability of the mounting seat 413, thereby making the head belt-straightening mechanism 420 more stable on the mounting seat 413, and making the belt-collecting and belt-laying processes more stable. More specifically, the third connecting beam 414 and the second connecting beam 4123 are both located on the same plane parallel to the mounting seat 413 to improve the bearing capacity of the water hose vehicle support structure 410 in the horizontal plane.

[0043] Specifically in the above embodiments, the support column 4121, the first connecting beam 4122, the second connecting beam 4123 and the third connecting beam 414 are all hollow structures, which can be square steel, rectangular steel, U-shaped steel and other structures, or round tubes, square tubes and other structures, which is conducive to the lightweight of the water hose fire truck 10.

[0044] Furthermore, in some embodiments, each support column 4121 is further provided with a first reinforcing rib 4124 and a second reinforcing rib 4125 at one end close to the base frame 411. In the front-to-back direction of the hose fire truck 10, the first reinforcing rib 4124 is respectively fixedly connected to the base frame 411 and the side of the corresponding support column 4121 facing away from the adjacent support column 4121. In the left-to-right direction of the hose fire truck 10, the second reinforcing rib 4125 is respectively fixedly connected to the base frame 411 and the side of the corresponding support column 4121 facing the adjacent support column 4121.

[0045] In this way, the first reinforcing ribs 4124 arranged opposite to each other along the front-to-back direction of the water hose fire truck 10 can improve the rigidity of the support member 412 in the front-to-back direction of the water hose fire truck 10, and the second reinforcing ribs 4125 arranged opposite to each other along the left-to-right direction of the water hose fire truck 10 can improve the rigidity of the support member 412 in the left-to-right direction of the water hose fire truck 10. At the same time, a good force transmission path is provided between the support column 4121 and the base frame 411, thereby improving the rigidity of the water hose truck support structure 410.

[0046] Furthermore, in some embodiments, in the left-right direction of the hose fire truck 10, each support column 4121 is provided with a plurality of first reinforcing ribs 4124 at intervals. In the front-back direction of the hose fire truck 10, each support column 4121 is provided with a plurality of second reinforcing ribs 4125 at intervals.

[0047] In this way, a support column 4121 is correspondingly provided with multiple first reinforcing ribs 4124 and multiple second reinforcing ribs 4125 to further reduce the probability of the support column 4121 shaking along the front and rear directions and left and right directions of the water hose fire truck 10, thereby further improving the stability of the water hose truck support structure 410.

[0048] Furthermore, in some embodiments, a first weight-reducing hole 41241 is provided on the first reinforcing rib 4124, which is consistent with the edge shape of the first reinforcing rib 4124. A second weight-reducing hole 41251 is provided on the second reinforcing rib 4125, which is consistent with the edge shape of the second reinforcing rib 4125. Specifically, the first reinforcing rib 4124 and the second reinforcing rib 4125 are both plate-shaped structures. The first weight-reducing hole 41241 is provided on the first reinforcing rib 4124, and the second weight-reducing hole 41251 is provided on the second reinforcing rib 4125, so as to reduce the mass of the first reinforcing rib 4124 and the second reinforcing rib 4125, which is conducive to the lightweighting of the hose fire truck 10.

[0049] Setting the shape of the first weight-reducing hole 41241 to be consistent with the edge shape of the first reinforcing rib 4124 and setting the shape of the second weight-reducing hole 41251 to be consistent with the edge shape of the second reinforcing rib 4125 can ensure that the first reinforcing rib 4124 and the second reinforcing rib 4125 have greater supporting strength.

[0050] Furthermore, in some embodiments, the first reinforcing rib 4124 and the second reinforcing rib 4125 are both triangular plate structures. Two adjacent sides of the first reinforcing rib 4124 are respectively fixedly connected to the corresponding support column 4121 and the bottom frame 411. Two adjacent sides of the second reinforcing rib 4125 are respectively fixedly connected to the corresponding support column 4121 and the bottom frame 411.

[0051] Among all shapes, the triangular structure is the most stable, so the first reinforcing rib 4124 and the second reinforcing rib 4125 are both set to a triangular plate structure, which can improve the connection stability between the support column 4121 and the base frame 411, and further improve the structural stability of the water hose truck support structure 410.

[0052] At this time, the first lightening hole 41241 and the second lightening hole 41251 are both triangular through holes. Specifically, the sharp corners of the first reinforcing rib 4124 and the second reinforcing rib 4125 are both chamfered.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A hose truck support structure, used to install the head belt handling mechanism on the walking chassis of the hose fire truck, characterized in that: The water hose truck support structure includes a base frame, two support members and a mounting seat; the base frame is used to be fixed on the walking chassis of the water hose fire truck; the two support members are arranged at intervals along the left and right directions of the water hose fire truck; the two ends of each support member are respectively fixedly connected to the base frame and the mounting seat; the mounting seat is used to install the head belt management mechanism.

2. The water hose vehicle support structure according to claim 1, characterized in that: The support member comprises two support columns which are arranged at intervals along the front-rear direction of the hose fire truck; two ends of each support column are respectively fixedly connected to the bottom of the base frame and the mounting seat.

3. The water hose vehicle support structure according to claim 2, characterized in that: The support member also includes a first connecting beam and a second connecting beam; the two ends of the first connecting beam are respectively fixedly connected to one end of the two support columns close to the base frame; the two ends of the second connecting beam are respectively fixedly connected to one end of the two support columns close to the mounting seat.

4. The water hose vehicle support structure according to claim 2, characterized in that: In the left and right directions of the hose fire truck, a third connecting beam is fixedly connected between two adjacent support columns.

5. The water hose vehicle support structure according to claim 2, characterized in that: A first reinforcing rib and a second reinforcing rib are also provided at one end of each support column close to the base frame; in the front-to-rear direction of the hose fire truck, the first reinforcing rib is respectively fixedly connected to the base frame and the side of the corresponding support column away from the adjacent support column; in the left-to-right direction of the hose fire truck, the second reinforcing rib is respectively fixedly connected to the base frame and the side of the corresponding support column facing the adjacent support column.

6. The water hose vehicle support structure according to claim 5, characterized in that: In the left-right direction of the hose fire truck, each support column is provided with a plurality of first reinforcing ribs at corresponding intervals; in the front-back direction of the hose fire truck, each support column is provided with a plurality of second reinforcing ribs at corresponding intervals.

7. The water hose vehicle support structure according to claim 5, characterized in that: The first reinforcing rib is provided with a first weight-reducing hole that is consistent with the edge shape of the first reinforcing rib; the second reinforcing rib is provided with a second weight-reducing hole that is consistent with the edge shape of the second reinforcing rib.

8. The water hose vehicle support structure according to claim 5, characterized in that: The first reinforcing rib and the second reinforcing rib are both triangular plate structures; two adjacent sides of the first reinforcing rib are respectively fixedly connected to the corresponding support column and the base frame; two adjacent sides of the second reinforcing rib are respectively fixedly connected to the corresponding support column and the base frame.

9. A hose retracting and releasing device, characterized in that: It comprises a hose truck support structure, a head belt unwinding mechanism and a head belt collecting mechanism as described in any one of claims 1 to 8; one end of the head belt unwinding mechanism is detachably mounted on the mounting seat, and the other end is used for detachably mounting on the top of the belt storage compartment in the hose fire truck; the head belt collecting mechanism is installed on one end of the head belt unwinding mechanism close to the support member.

10. A hose fire truck, characterized in that: It comprises a traveling chassis, a driver's cab, a belt storage box and the water hose retracting and releasing device as described in claim 9; the driver's cab and the belt storage box are both installed on the traveling chassis; the base frame is fixed on the traveling chassis, and the support member is located between the driver's cab and the belt storage box; the end of the head belt sorting mechanism away from the support member is detachably installed on the bottom of the belt storage box.