Portable quick-change carriage and water hose fire fighting truck

Abstract

The utility model relates to a portable fire fighting truck with a quick-change carriage and a water hose. The portable water quick-change carriage comprises a carriage body and a plurality of supporting leg assemblies. The supporting leg assembly comprises a rotating mounting frame, a telescopic supporting leg and a rotating driving piece. The rotary driving part is used for driving the rotary mounting frame to drive the telescopic supporting leg to rotate around the connecting rotary shaft between the rotary mounting frame and the carriage body, so that the telescopic supporting leg is rotated to the left side or the right side of the carriage body, or the telescopic supporting leg is rotated to the position close to the surface of the carriage body. The telescopic supporting legs are constructed to be capable of extending or shortening in the height direction of the carriage body till the telescopic supporting legs make contact with the ground or leave the ground. The portable quick-change carriage has the advantages of being convenient and quick to disassemble and assemble, can be applied to water hose fire fighting trucks and can be applied to fire rescue sites with far water sources, rescue cost is greatly reduced, and rescue speed is increased at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of hose fire trucks, in particular to a portable quick-change carriage and a hose fire truck. Background Art

[0002] The hose fire truck is a special fire truck, which is mainly used to provide fire hoses for rescue to the main fire truck, and recycle the hoses and store them in standby state after the rescue. The hose storage compartment of the traditional hose fire truck is directly installed on the frame, and the weight of the hose storage compartment is very large. Its disassembly and assembly often requires the use of jacks, lifting equipment, etc., which is difficult and time-consuming. Especially for some firefighting and rescue work where the water source is far away from the fire scene, it is often necessary for multiple hose fire trucks to relay the laying of the hoses. The vehicle investment cost is high, which causes the problem of high rescue costs for fires far away from the water source. If only one hose fire truck is used for long-distance hose laying in order to save vehicle investment costs, the firefighters will need to drive the hose fire truck to a designated location to load the hose after the hose laying is completed, and then return to relay the hose laying. This process must be repeated multiple times to achieve long-distance hose laying. This results in a longer hose laying time. In the face of a rapidly changing fire situation, too long a hose laying time may result in greater fire losses. Utility Model Content

[0003] Based on this, it is necessary to provide a portable quick-change carriage and water hose fire truck that is easy to disassemble and assemble and has low disassembly and assembly costs, so as to achieve both low rescue costs and high rescue speed during fire rescue processes far away from water sources.

[0004] A portable quick-change carriage, comprising a carriage body and a plurality of supporting leg assemblies;

[0005] The carriage body is used to be detachably mounted on the frame of the hose fire truck; a plurality of the support leg assemblies are arranged at intervals along the circumference of the carriage body;

[0006] The support leg assembly includes a rotating mounting frame, a telescopic support leg and a rotating drive member; one end of the rotating mounting frame is rotatably mounted on the car body; the telescopic support leg is mounted on the other end of the rotating mounting frame; the rotating drive member is transmission-connected to the rotating mounting frame, and is used to drive the rotating mounting frame to drive the telescopic support leg to rotate around the connecting shaft between the rotating mounting frame and the car body, so as to rotate the telescopic support leg to the left or right side of the car body, or to rotate the telescopic support leg to a position close to the surface of the car body; the telescopic support leg is constructed to be able to extend or shorten in the height direction of the car body until the telescopic support leg contacts the ground or leaves the ground.

[0007] A hose fire truck, comprising a frame, a traveling assembly, a driver's cab, a hose retracting and releasing device and the portable quick-change carriage as described above;

[0008] The bottom of the frame is provided with the traveling assembly; the driver's cab and the carriage body are detachably mounted on the frame at intervals along the traveling direction of the traveling assembly;

[0009] The water hose retracting and releasing device comprises a supporting structure, a belt arranging mechanism and a belt taking-up mechanism; the supporting structure is fixed on the vehicle frame and is located between the driver's cab and the vehicle body; the front end of the belt arranging mechanism is connected to an end of the supporting structure away from the vehicle frame, and the rear end of the belt arranging mechanism is detachably connected to the vehicle body; the belt taking-up mechanism is located above the driver's cab, and the rear end of the belt taking-up mechanism is installed at the front end of the belt arranging mechanism;

[0010] Wherein, when the telescopic supporting leg is located on the left side or the right side of the carriage body, the telescopic supporting leg is located on the outer side of the traveling assembly on the same side.

[0011] The portable quick-change carriage and the water hose fire truck are installed on the frame to obtain the water hose fire truck. When the portable quick-change carriage needs to be removed from the frame, it is only necessary to use the rotating drive member to drive the rotating mounting frame to drive the telescopic support legs to rotate to the left or right side of the carriage body, and then extend the telescopic support legs to contact the ground, so as to achieve the supporting effect of multiple telescopic support legs on the carriage body, and then remove the connection between the carriage body and the frame, and drive the water hose fire truck away from the portable quick-change carriage; when the portable quick-change carriage needs to be installed on the frame, it is only necessary to drive the water hose fire truck to the bottom where the frame extends into the carriage body, and detachably connect the carriage body to the frame, and then shorten the telescopic support legs to make them leave the ground, and then use the rotating drive member to drive the rotating mounting frame to drive the telescopic support legs to rotate to a position close to the carriage body, so as to facilitate the normal use of the water hose fire truck. Therefore, the disassembly and installation of the above-mentioned portable quick-change carriage does not require the help of a crane, lifting equipment, etc., which is convenient and fast.

[0012] At a fire rescue site far from the water source, when the water hose of a car body is laid, the water hose fire truck can quickly return to the designated location, remove the empty portable quick-change car from the frame, and then quickly install the portable quick-change car loaded with water hoses on the frame, and drive to the location where the water hose was laid last time to relay the laying of the water hose. This can be repeated to complete the long-distance water hose laying work. Therefore, a water hose fire truck can be equipped with multiple portable quick-change cars to meet the needs of long-distance water hose laying and reduce equipment investment costs. During the fire rescue process, the water hose fire truck does not need to wait for the hose to be loaded, which effectively shortens the water hose laying time and is conducive to improving the speed of fire rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of a hose fire truck in an embodiment of the utility model in the process of disassembly and assembly in a portable quick-change compartment and after disassembly;

[0014] Figure 2 for Figure 1 The diagram shows the portable quick-change compartment in the hose fire truck during the disassembly and assembly process and the status after disassembly.

[0015] Explanation of reference numerals: 10, hose fire truck; 100, vehicle frame; 200, traveling assembly; 300, driver's cab; 400, hose retracting and releasing device; 410, supporting structure; 420, retracting mechanism; 430, belt arranging mechanism; 500, portable quick-change carriage; 510, carriage body; 511, escape space; 512, connecting part; 520, supporting leg assembly; 521, rotating mounting frame; 522, telescopic supporting leg; 5221, telescopic driving member; 5222, supporting foot. DETAILED DESCRIPTION

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] The utility model provides a portable quick-change carriage 500 and a hose fire truck 10. The hose fire truck 10 comprises a frame 100, a traveling assembly 200200, a driver's cab 300, a hose retracting and releasing device 400 and a portable quick-change carriage 500.

[0022] A traveling assembly 200 is provided at the bottom of the vehicle frame 100. The traveling assembly 200 is used to drive the hose fire truck 10 to travel on the ground. The driver's cab 300 and the portable quick-change carriage 500 are detachably installed on the vehicle frame 100 along the travel direction of the traveling assembly 200. The portable quick-change carriage 500 is used for loading and arranging the hose.

[0023] The hose retracting and unreeling device 400 includes a support structure 410, a belt-straightening mechanism 430, and a belt-retracting mechanism 420. The support structure 410 is fixed to the vehicle frame 100 and is located between the driver's cab 300 and the portable quick-change carriage 500. The front end of the belt-straightening mechanism 430 is connected to an end of the support structure 410 away from the vehicle frame 100, and the rear end of the belt-straightening mechanism 430 is detachably connected to the portable quick-change carriage 500. The belt-retracting mechanism 420 is located above the driver's cab 300, and the rear end of the belt-retracting mechanism 420 is installed at the front end of the belt-straightening mechanism 430.

[0024] It should be noted that the front end and the rear end are determined with reference to the front and rear of the fire truck, that is, the rear end of the belt taking-up mechanism 420 is the end of the belt taking-up mechanism 420 close to the rear of the vehicle, and the front end of the belt unwinding mechanism 430 is the end of the belt unwinding mechanism 430 close to the front of the vehicle.

[0025] Of course, it can be understood that in other embodiments, the portable quick-change carriage 500 can also be arranged on other van-type vehicles, such as a medical rescue vehicle, etc.

[0026] The portable quick-change carriage 500 in the preferred embodiment of the present invention includes a carriage body 510 and a plurality of support leg assemblies 520 .

[0027] The carriage body 510 is used to be detachably mounted on the frame 100 of the hose fire truck 10. A plurality of support leg assemblies 520 are arranged at intervals along the circumference of the carriage body 510. In the hose fire truck 10, the carriage body 510 is detachably mounted on the frame 100 and is spaced apart from the driver's cab 300 in the traveling direction of the traveling assembly 200, and the top of the carriage body 510 is detachably connected to the rear end of the belt handling mechanism 430.

[0028] The support leg assembly 520 includes a rotating mounting frame 521, a telescopic support leg 522 and a rotating drive member (not shown). One end of the rotating mounting frame 521 is rotatably mounted on the carriage body 510. The telescopic support leg 522 is mounted on the other end of the rotating mounting frame 521. The rotating drive member is connected to the rotating mounting frame 521 in a transmission manner, and is used to drive the rotating mounting frame 521 to drive the telescopic support leg 522 to rotate around the connecting shaft between the rotating mounting frame 521 and the carriage body 510, so as to rotate the telescopic support leg 522 to the left or right side of the carriage body 510, or to rotate the telescopic support leg 522 to a position close to the surface of the carriage body 510. The telescopic support leg 522 is configured to be able to extend or shorten in the height direction of the carriage body 510 until the telescopic support leg 522 contacts the ground or leaves the ground. Among them, the rotating drive member can be installed on the outside of the carriage body 510, or it can be installed on the inside of the carriage body 510.

[0029] For ease of understanding, the following is a brief description of the disassembly and assembly process of the portable happy carriage:

[0030] When the portable quick-change carriage 500 needs to be removed from the frame 100: first, use the rotating drive member to drive the rotating mounting frame 521 to drive the telescopic support legs 522 to rotate to the left or right side of the carriage body 510, that is, there are telescopic support legs 522 on both sides of the left and right sides of the carriage body 510; then, the telescopic support legs 522 are operably extended to contact the ground to ensure that multiple telescopic support legs 522 support the carriage body 510; remove the connection between the carriage body 510 and the frame 100, and remove the connection between the carriage body 510 and the belt management mechanism 430; drive the hose fire truck 10 away from the portable quick-change carriage 500, and the portable quick-change carriage 500 stays in place, realizing the complete separation of the portable quick-change carriage 500 and the frame 100.

[0031] When the portable quick-change carriage 500 needs to be installed on the frame 100, the water hose fire truck 10 is driven until the frame 100 extends into the bottom of the carriage body 510; the carriage body 510 is detachably connected to the frame 100, and the carriage body 510 is detachably connected to the rear end of the belt management mechanism 430; the telescopic support leg 522 is operably shortened to leave the ground; the rotating mounting frame 521 is driven by a rotating drive member to drive the telescopic support leg 522 to rotate to a position close to the carriage body 510, so as to realize the folding of the support leg assembly 520, so as to facilitate the normal use of the water hose fire truck 10.

[0032] Therefore, the disassembly and installation of the portable quick-change carriage 500 do not require the aid of a crane, lifting equipment, etc., and the labor intensity is not great, and the disassembly and installation are convenient and quick.

[0033] At a fire rescue site far from the water source, after the water hose of a carriage body 510 is laid, the hose fire truck 10 can quickly return to the designated position, remove the empty portable quick-change carriage 500 from the frame 100, and then quickly install the portable quick-change carriage 500 loaded with the hose onto the frame 100, and drive to the position where the hose was laid last time to continue laying the hose, and repeat this process to complete the long-distance hose laying work. Therefore, a hose fire truck 10 can be equipped with multiple portable quick-change carriages 500 to meet the needs of long-distance hose laying and reduce equipment investment costs. In addition, while the current portable quick-change carriage 500 is laying the hose, the previous empty portable quick-change carriage 500 is loaded with the hose. The hose fire truck 10 does not need to wait for loading, which effectively shortens the hose laying time and is conducive to improving the speed of fire rescue.

[0034] In the hose fire truck 10, when the telescopic support leg 522 is located on the left or right side of the vehicle body 510, the telescopic support leg 522 is located on the outer side of the traveling assembly 200 on the same side. In this way, it can be ensured that when the frame 100 moves away from or enters the bottom of the vehicle body 510, the traveling assembly 200 will not collide with or interfere with the telescopic support leg 522, thereby ensuring that the frame 100 and the vehicle body 510 are completely separated or installed smoothly.

[0035] In some embodiments, there are four support leg assemblies 520, two of which are respectively arranged on the left and right sides of the front end of the carriage body 510, and the remaining two are respectively arranged on the left and right sides of the rear end of the carriage body 510. The carriage body 510 may be a rectangular box structure, a can-shaped structure, or a hollow structure of other shapes. Specifically, when the carriage body 510 is a rectangular box structure, the four support leg assemblies 520 are respectively located at the four corners of the carriage body 510.

[0036] The number of support leg assemblies 520 is set to four, and they are distributed in a rectangular shape at the front end, rear end, left side, and right side of the car body 510, thereby forming four-corner supports for the car body 510, ensuring that the car body 510 can be stably supported during the disassembly and assembly of the portable quick-change car 500, ensuring that the disassembly and assembly work can be carried out smoothly and safely.

[0037] Of course, in other embodiments, the number of the supporting leg assemblies 520 may be two, three, five, six, etc., as long as they can stably support the vehicle body 510 .

[0038] In some embodiments, a concave avoidance cavity is formed at the position where the support leg assembly 520 is provided on the surface of the carriage body 510. One end of the rotating mounting frame 521 is installed in the corresponding avoidance cavity. When the telescopic support leg 522 is located close to the carriage body 510, the telescopic support leg 522 is located in the avoidance cavity. When the telescopic support leg 522 is located on the left or right side of the carriage body 510, the telescopic support leg 522 is located outside the avoidance cavity.

[0039] That is, when the rotating driving member drives the rotating mounting frame 521 to drive the telescopic support leg 522 to rotate, the telescopic support leg 522 is retracted into the avoidance space 511, or rotated out of the avoidance space 511 to the left or right side outside the vehicle body 510. The setting of the avoidance space 511 can ensure that after the portable quick-change vehicle 500 is installed on the vehicle frame 100, the support leg assembly 520 can be completely retracted into the avoidance space 511, so as to avoid the support leg assembly 520 from scratching with nearby objects or people during the driving of the water hose fire truck 10, thereby improving the safety of the use of the water hose fire truck 10.

[0040] Specifically, when the carriage body 510 is a rectangular box structure, and the four supporting leg assemblies 520 are respectively located at the four corners of the carriage body 510 , there are also four avoidance spaces 511 , which are respectively located at the four corners of the carriage body 510 .

[0041] In some embodiments, the telescopic support leg 522 includes a telescopic driving member 5221 and a support foot 5222. Both ends of the telescopic driving member 5221 are respectively connected to the rotating mounting frame 521 and the support foot 5222. The telescopic driving member 5221 is configured to be able to extend or shorten in the height direction of the carriage body 510 to drive the support foot 5222 to contact the ground or leave the ground.

[0042] The support leg 5222 may be a disc structure, a rectangular plate structure, or a structure of other shapes. In this way, the telescopic support leg 522 is configured as a telescopic driving member 5221 and a support leg 5222. While ensuring the telescopic function of the telescopic support leg 522, it can also ensure that there is a large contact area between the telescopic support leg 522 and the ground, so as to improve the support stability of the carriage body 510. Even if the support leg 5222 is worn after long-term use, it only needs to be replaced, which is conducive to extending the service life of the telescopic support leg 522.

[0043] Specifically, the telescopic driving member 5221 is a hydraulic cylinder to improve the stability and reliability of the operation of the telescopic support leg 522. Of course, in other embodiments, the telescopic driving member 5221 can also be an electric cylinder, a scissor-type bracket structure, etc., as long as it can be extended or shortened in the height direction of the carriage body 510 and provide a certain support force for the carriage body 510.

[0044] In some embodiments, a connection portion 512 is provided on the top of the vehicle body 510. The connection portion 512 is used to be detachably connected to the hose retractable belt device 400 in the hose fire truck 10. The connection portion 512 may be a hole-shaped structure such as a threaded hole or a light hole, or may be a connection buckle, a clamping structure, or may be other structures that are convenient for detachable connection with the rear end of the belt management mechanism 430.

[0045] Specifically, the portable joy carriage further includes a connecting piece (not shown), the connecting part 512 is a connecting hole formed on the top of the carriage body 510, one end of the connecting piece is passed through the mounting hole at the rear end of the belt arranging mechanism 430, and the other end is connected to the connecting hole to realize the detachable connection between the carriage body 510 and the belt arranging mechanism 430. In this way, the setting of the connecting part 512 makes it more convenient to disassemble and assemble the carriage body 510 and the water hose retracting and unreeling device 400.

[0046] In some embodiments, a plurality of mounting parts (not shown) are provided at the bottom end of the carriage body 510. The mounting parts are used to be threadedly connected to the frame 100. Specifically, the mounting part includes a mounting structure and a threaded connector installed on the mounting structure, the mounting structure is fixed to the bottom end of the carriage body 510, and the threaded connector is threadedly connected to the frame 100 to achieve a detachable connection between the carriage body 510 and the frame 100. Therefore, the provision of the mounting part improves the convenience of assembly and disassembly between the carriage body 510 and the frame 100.

[0047] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above 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.

[0048] The above embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they 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 portable quick-change carriage, characterized in that: It includes a carriage body and a plurality of supporting leg assemblies; The carriage body is used to be detachably mounted on the frame of the hose fire truck; a plurality of the support leg assemblies are arranged at intervals along the circumference of the carriage body; The support leg assembly includes a rotating mounting frame, a telescopic support leg and a rotating drive member; one end of the rotating mounting frame is rotatably mounted on the car body; the telescopic support leg is mounted on the other end of the rotating mounting frame; the rotating drive member is transmission-connected to the rotating mounting frame, and is used to drive the rotating mounting frame to drive the telescopic support leg to rotate around the connecting shaft between the rotating mounting frame and the car body, so as to rotate the telescopic support leg to the left or right side of the car body, or to rotate the telescopic support leg to a position close to the surface of the car body; the telescopic support leg is constructed to be able to extend or shorten in the height direction of the car body until the telescopic support leg contacts the ground or leaves the ground.

2. The portable quick-change carriage according to claim 1, characterized in that: There are four supporting leg assemblies, two of which are respectively arranged on the left and right sides of the front end of the carriage body, and the remaining two are respectively arranged on the left and right sides of the rear end of the carriage body.

3. The portable quick-change carriage according to claim 1, characterized in that: The surface of the carriage body is provided with a concave avoidance cavity formed at the position where the support leg assembly is provided; one end of the rotating mounting frame is installed in the corresponding avoidance cavity; when the telescopic support leg is located close to the carriage body, the telescopic support leg is located in the avoidance cavity; when the telescopic support leg is located on the left or right side of the carriage body, the telescopic support leg is located outside the avoidance cavity.

4. The portable quick-change carriage according to claim 1, characterized in that: The telescopic support leg includes a telescopic driving member and a support foot; the two ends of the telescopic driving member are respectively connected to the rotating mounting frame and the support foot; the telescopic driving member is constructed to be able to extend or shorten in the height direction of the carriage body to drive the support foot to contact the ground or leave the ground.

5. The portable quick-change carriage according to claim 4, characterized in that: The telescopic driving member is a hydraulic cylinder.

6. The portable quick-change carriage according to claim 1, characterized in that: A connecting portion is provided on the top of the carriage body; the connecting portion is used to be detachably connected to a water hose retracting and releasing belt device in a water hose fire truck.

7. The portable quick-change carriage according to claim 1, characterized in that: A plurality of mounting parts are arranged at the bottom end of the carriage body; the mounting parts are used for being threadedly connected with the frame.

8. A hose fire truck, characterized in that: It comprises a vehicle frame, a traveling assembly, a driver's cab, a hose retracting and releasing device, and a portable quick-change vehicle compartment as claimed in any one of claims 1 to 7; The bottom of the frame is provided with the traveling assembly; the driver's cab and the carriage body are detachably mounted on the frame at intervals along the traveling direction of the traveling assembly; The water hose retracting and releasing device comprises a supporting structure, a belt arranging mechanism and a belt taking-up mechanism; the supporting structure is fixed on the vehicle frame and is located between the driver's cab and the vehicle body; the front end of the belt arranging mechanism is connected to an end of the supporting structure away from the vehicle frame, and the rear end of the belt arranging mechanism is detachably connected to the vehicle body; the belt taking-up mechanism is located above the driver's cab, and the rear end of the belt taking-up mechanism is installed at the front end of the belt arranging mechanism; Wherein, when the telescopic supporting leg is located on the left side or the right side of the carriage body, the telescopic supporting leg is located on the outer side of the traveling assembly on the same side.

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