Fire hose arranging device

Abstract

The utility model relates to a fire hose arranging device belongs to fire fighting equipment technical field. Including traction connecting frame, with the fire hose automatic laying fire engine's laying mechanism connection, a pair of guide belt mechanism, fix in traction connecting frame's one side towards down, the characteristics are: guide belt mechanism includes shaft sleeve, shaft sleeve transition connecting mechanism, shaft body, shaft body rotation action mechanism, shaft body locking mechanism, shaft body rotation unlocking mechanism and press belt roller, the upper middle part of shaft sleeve is opened shaft body rotation action mechanism cooperation hole, the lower middle part is opened shaft body locking mechanism containing hole, and shaft sleeve transition connecting mechanism is fixed between the opposite side of traction connecting frame and shaft sleeve, the upper shaft body is opened shaft body rotation unlocking mechanism hole, shaft body rotation action mechanism is established in shaft body rotation action mechanism cooperation hole, shaft body locking mechanism is established in shaft body locking mechanism containing hole, and shaft body rotation unlocking mechanism is established in shaft body rotation unlocking mechanism hole. Advantage: embody passive, guarantee the security and reliability in use, simplify structure.

Description

Technical Field

[0001] This invention belongs to the field of fire protection facilities technology, and specifically relates to a fire hose management device. Background Technology

[0002] The aforementioned fire hose organizing device is a key component of the hose-collecting mechanism in the fire hose laying fire truck. Its function is to guide the fire hose and neatly and orderly collect it in an S-shaped, reciprocating stacked state into the hose storage compartment of the fire hose laying fire truck. As is known in the industry, there are many types of fire trucks, including foam fire trucks, dry powder fire trucks, pump fire trucks, rescue fire trucks, lighting fire trucks, aerial platform fire trucks, communication command fire trucks, ladder fire trucks, fire investigation fire trucks, smoke extraction fire trucks, water supply fire trucks, equipment fire trucks, and propaganda fire trucks, among others. Fire hose laying fire trucks, broadly speaking, fall under the category of support fire trucks. They provide fire hoses for main fire trucks for firefighting and rescue operations and store the hoses in a standby state after the firefighting and rescue are completed—that is, they collect the hoses and neatly stack them in the aforementioned hose storage compartment. For further information, see Chinese patents CN203647924U (Automatic Fire Hose Laying Fire Truck), CN203647925U (Fire Truck with Automatic Hose Retraction and Deployment Function), and CN203647926U (Fire Truck for Hose Retraction and Laying), etc. It's not limited to the aforementioned patent structures all equipped with a reciprocating trolley that orderly lays the fire hoses that need to be retrieved after the firefighting operation in a hose storage compartment. However, the structure of the hose handling device (referred to as the hose laying trolley in the patents) is relatively complex, especially requiring a double-cylinder piston cylinder for each pair of pressure rollers (also called "guide rollers"). The double-cylinder piston cylinder acts to either repel or align the pair of pressure rollers in the hose handling device's structural system, thus exhibiting an active operation. The disadvantage of this active operation is low safety and reliability. For example, when using hydraulic or pneumatic cylinders as double-cylinder piston cylinders, oil leakage or compressed air leakage is difficult or even impossible to avoid.

[0003] The patent CN207898792U, entitled "A Hose Management Device and a Fire Truck," describes a system where a drive mechanism (using a hydraulic or pneumatic cylinder) sequentially drives a push rod. This push rod then drives a first and second connecting rod, which in turn drives a first and second rotating handle. This, in turn, drives a first and second rotating arm. Ultimately, the rotation of the first and second rotating arms causes a pair of pressure rollers (referred to in the patent as "first pressure arm" and "second pressure arm") to repel each other, resembling a pair of parallel arms or facing each other on the same straight line. The former state is a non-pressure or non-guided state, while the latter state is a pressure or guide state. Overall, CN207898792U exhibits a relatively complex structure and also utilizes active support. Summary of the Invention

[0004] The objective of this invention is to provide a fire hose straightening device that helps to eliminate the drive mechanism used to control the alternating action of a pair of pressure rollers between pressing and releasing pressure, thereby achieving passivity, ensuring safety and reliability in use, and significantly reducing the transmission links between drive components by avoiding the use of connecting rod components to drive the pressure rollers, thus simplifying the structure and demonstrating economy.

[0005] The present invention achieves its objective by providing a fire hose management device, comprising a traction connecting frame, which is connected to the hose laying mechanism of an automatic fire hose laying fire truck in use; and a pair of guide mechanisms, which are fixed to the downward-facing side of the traction connecting frame in a corresponding manner; characterized in that each of the pair of guide mechanisms includes a bushing, a bushing transition connecting mechanism, a shaft, a shaft rotation mechanism, a shaft locking mechanism, a shaft rotation unlocking mechanism, and a pressure roller; a bushing hole extending from the left end to the right end of the bushing is provided at the center of the bushing's length direction; a shaft rotation mechanism mating hole communicating with the bushing hole is provided above the middle of the bushing's length direction; and a shaft locking mechanism receiving hole, also communicating with the bushing hole, is provided below the middle of the bushing's length direction; the bushing transition connecting mechanism is fixed to the... Between the traction connecting frame and the bushing on opposite sides, the middle part of the shaft in the length direction is located inside the bushing hole and a shaft locking hole is opened at the position corresponding to the shaft locking mechanism. A shaft rotation guide groove is opened on the outer side of the shaft. The left end of the shaft extends outside the bushing hole, and the right end of the shaft also extends outside the bushing hole and has a shaft rotation unlocking mechanism hole that communicates with the shaft locking hole in the axial direction. The shaft rotation action mechanism is set in the shaft rotation action mechanism mating hole and mates with the shaft rotation guide groove. The shaft locking mechanism is set in the shaft locking mechanism receiving hole and probes upward or downward out of the shaft locking hole. The shaft rotation unlocking mechanism is set in the shaft rotation unlocking mechanism hole and probes to the left or out of the shaft locking hole. One end of the pressure roller is fixed to the left end of the shaft, while the other end of the pressure roller is a free end.

[0006] In a specific embodiment of the present invention, the bushing transition connection mechanism includes a first bushing fixing frame and a second bushing fixing frame. The first and second bushing fixing frames are symmetrical to each other and their upper parts are fixed to the downward-facing side of the traction connection frame. A first bushing fixing frame cavity is formed in the lower part of the first bushing fixing frame, and a second bushing fixing frame cavity is formed in the lower part of the second bushing fixing frame. The cavity walls of the first and second bushing fixing frames are welded and fixed to the upward-facing surface of the bushing.

[0007] In another specific embodiment of the present invention, the mating hole of the shaft rotation mechanism is an internal threaded hole; the shaft rotation mechanism includes a shaft rotation drive column and an oil nozzle, the shaft rotation drive column is disposed in the mating hole of the shaft rotation mechanism, and an external thread of the shaft rotation drive column is formed on the outer wall of the shaft rotation drive column, the external thread of the shaft rotation drive column is threadedly engaged with the mating hole of the shaft rotation mechanism, and a shaft rotation guide groove mating head extends from the lower end of the shaft rotation drive column, the shaft rotation guide groove... The mating head is inserted into the shaft rotation guide groove so that the shaft rotation drive column mates with the middle part of the shaft. The oil injection nozzle is threaded into the shaft rotation action mechanism mating hole at the position above the shaft rotation drive column, and the upper end of the oil injection nozzle protrudes from the upper surface of the bushing. A lubricating oil inlet hole is opened at the center of the oil injection nozzle. The lubricating oil is led through the lubricating oil inlet hole to the drive column oil guide groove formed longitudinally on the shaft rotation drive column in a spaced manner, and then led from the drive column oil guide groove to the shaft rotation guide groove.

[0008] In another specific embodiment of the present invention, the middle part of the shaft body is supported on a left support sleeve at the position corresponding to the left end opening of the bushing hole, and the middle part of the shaft body is supported on a right support sleeve at the position corresponding to the right end opening of the bushing hole. The left and right support sleeves of the shaft body are fixed to the hole wall of the bushing hole, and the shaft body and the left and right support sleeves of the shaft body form a sliding pair that can slide left and right.

[0009] In another specific embodiment of the present invention, in the middle part of the shaft, the outer diameter of the area having the shaft locking hole and the shaft rotation guide groove is larger than the outer diameter of other parts of the shaft, and the shaft rotation guide groove is a spiral segment.

[0010] In another specific embodiment of the present invention, the shaft locking mechanism includes a top cap, a top cap sleeve, a limiting block, a top cap return spring, and a plug. The plug is threadedly fixed to the lower part of the shaft locking mechanism receiving hole. The lower end of the top cap return spring is supported on the plug, while the upper end of the top cap return spring is supported on the bottom of the limiting block. The limiting block floats up and down between the shaft locking mechanism receiving hole and the shaft locking hole. The top cap sleeve is fitted on the top cap, with the upper end of the top cap protruding into the shaft locking hole and the lower end contacting the upper surface of the limiting block.

[0011] In a further specific embodiment of the present invention, the shaft rotation unlocking mechanism includes a push rod, a push rod return spring, and a push rod plug. The push rod is movably disposed in the hole of the shaft rotation unlocking mechanism. The push rod return spring is sleeved on the push rod, and the left end of the push rod return spring is supported on the push rod return spring support step in the hole of the shaft rotation unlocking mechanism, while the right end of the push rod return spring is supported on the push rod return spring support seat formed on the push rod. The right end of the push rod extends to the right side of the push rod plug, and the push rod plug is fixed to the right end of the shaft.

[0012] In a further specific embodiment of the present invention, the left end of the push rod is formed into a frustum cone. A push rod plug mating thread is formed around the wall of the shaft rotation unlocking mechanism hole at the right end port. An external push rod thread is formed on the outer wall of the left end of the push rod plug. A central hole for the push rod plug, extending from the left end to the right end, is formed at the axial center of the push rod plug. The external push rod thread and the push rod plug mating thread are threadedly engaged. The left end face of the push rod plug corresponds to the right side face of the push rod return spring support. When the right end face of the push rod, which extends from the central hole of the push rod plug to the right end of the push rod plug, is impacted, the push rod moves to the left and the truncated cone inserts into the shaft locking hole, forcing the shaft locking mechanism to retract from the shaft locking hole and release the shaft from the locking. When the truncated cone at the left end of the push rod moves to the right and retracts from the shaft locking hole, the shaft locking mechanism returns to the locked state of the shaft.

[0013] In another specific embodiment of the present invention, a pressure roller fixing hole is provided at the left end of the shaft body, and a pressure roller fastener hole is provided at one end of the pressure roller and at the position corresponding to the pressure roller fixing hole for fixing one end of the pressure roller to the left end of the shaft body by means of a fastener, and the left end of the shaft body extends to the left side of the pressure roller to form a shaft body left impact part.

[0014] In yet another specific embodiment of the present invention, the outer diameter of the middle part of the shaft is greater than the outer diameter of the right end of the shaft, and the outer diameter of the right end of the shaft is greater than the outer diameter of the left end of the shaft.

[0015] The technical advantages of the present invention are as follows: Since the traction connecting frame is connected to the hose-laying mechanism of the automatic fire hose laying fire truck during use, the traction connecting frame can move accordingly during the reciprocating movement of the hose-laying mechanism. The shaft rotation mechanism, in conjunction with the shaft rotation guide groove on the shaft, forces the shaft to rotate clockwise or counterclockwise. This causes the pressure roller fixed to its left end to switch between horizontal and vertical states, achieving the purpose of pressing and releasing the hose and releasing the fire hose. Therefore, unlike existing technologies, there is no need for additional power for the angle change of the pressure roller, resulting in a passive design that ensures safety and reliability during use. This also helps avoid using connecting components to drive the pressure roller, reducing the number of parts and the action transmission links, and significantly simplifying the structure, demonstrating good economic efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an embodiment of the present invention; Figure 2 for Figure 1 A detailed structural diagram of a pair of guide belt mechanisms is shown; Figure 3 for Figure 1 and Figure 2 A schematic diagram of the structure of a pair of guide belt mechanisms, including the shaft, shaft locking mechanism, and shaft rotation unlocking mechanism; Figure 4 for Figure 1 and Figure 2 The diagram shows the pressure roller in the state of releasing the fire hose.

[0017] In the diagram: 1. Traction connecting frame; 11. Traction connecting frame screw hole; 111. Traction connecting frame screw; 2. Guide belt mechanism; 21. Bushing; 211. Bushing hole; 212. Shaft rotation mechanism mating hole; 213. Shaft locking mechanism receiving hole; 22. Bushing transition connection mechanism; 221. First bushing fixing frame; 2211. First bushing fixing frame cavity; 2212. First bushing fixing frame screw hole; 222. Second bushing fixing frame; 2221. Second bushing fixing frame cavity; 2222. Second bushing fixing frame screw hole; 23. Shaft; 231. Shaft locking hole; 232. Shaft rotation guide groove; 2321. 233. Shaft rotation guide groove end point; 2331. Shaft rotation unlocking mechanism hole; 2332. Push rod return spring support step; 2333. Push rod plug mating thread; 234. Shaft left support sleeve; 235. Shaft right support sleeve; 236. Pressure roller fixing hole; 237. Shaft left impact part; 24. Shaft rotation action mechanism; 241. Shaft rotation drive column; 2411. Shaft rotation guide groove mating head; 2412. Drive column oil guide groove; 242. Oil injection nozzle; 2421. Lubricating... 25. Lubricating oil inlet hole, 25. Shaft locking mechanism, 251. Top cap, 252. Top cap sleeve, 253. Limiting block, 254. Top cap return spring, 255. Plug, 26. Shaft rotation unlocking mechanism, 261. Push rod, 2611. Push rod return spring support seat, 2612. Frustum, 262. Push rod return spring, 263. Push rod plug, 2631. Push rod external thread, 2632. Push rod plug central hole, 27. Pressure roller, 271. Pressure roller fastener hole. Detailed Implementation

[0018] In order to better understand the technical essence and beneficial effects of the present invention, the applicant provides a detailed description below by way of embodiments. However, the description of the embodiments is not intended to limit the present invention. Any formal but not substantive equivalent transformations made based on the concept of the present invention should be considered within the scope of the present invention.

[0019] In the following description, all directional or orientational concepts involving up, down, left, right, front, and back are based on, unless otherwise stated, the following. Figure 1 The location and state of the object are examples, and therefore should not be construed as a special limitation on the technical solution provided by the present invention.

[0020] Please see Figure 1 A traction connection frame 1 is shown, which is connected to the hose laying mechanism of an automatic fire hose laying fire truck in use; a pair of guide belt mechanisms 2 are shown, which are fixed to the downward-facing side of the aforementioned traction connection frame 1 in a corresponding state.

[0021] Since the specific structure, location, and working principle of the hose-laying mechanism of the fire truck mentioned above can be specifically referred to in Chinese invention patents ZL201410012525.7 (Fire Truck with Automatic Hose Laying), ZL201410013028.9 (Fire Truck with Hose Retraction and Laying), and ZL 201410013029.3 (Fire Truck with Automatic Hose Retraction and Deployment Function) filed by the applicant and all of which have been granted, the applicant will not elaborate further.

[0022] Please see Figure 2 The key technical points of the technical solution provided by the present invention are as follows: Each of the aforementioned pair of guide belt mechanisms 2 includes a bushing 21, a bushing transition connection mechanism 22, a shaft 23, a shaft rotation mechanism 24, a shaft locking mechanism 25, a shaft rotation unlocking mechanism 26, and a pressure roller 27 (also called a "straightening roller," hereinafter the same). A bushing hole 211 extending from the left end to the right end of the bushing 21 is provided at the center of the bushing 21 along its length. A shaft rotation mechanism mating hole 212 communicating with the bushing hole 211 is provided above the middle part of the bushing 21 along its length. A shaft locking mechanism receiving hole 213 communicating with the bushing hole 211 is provided below the middle part of the bushing 21 along its length. The bushing transition connection mechanism 22 is fixed between the aforementioned traction connecting frame 1 and the opposite side of the bushing 21. The middle part of the shaft 23 along its length is located inside the aforementioned bushing hole 211 and corresponds to the aforementioned A shaft locking hole 231 is provided at the position of the shaft locking mechanism 25, and a shaft rotation guide groove 232 is provided on the outer side of the shaft 23. The left end of the shaft 23 extends to the outside of the bushing hole 211, and the right end of the shaft 23 also extends to the outside of the bushing hole 211 and has a shaft rotation unlocking mechanism hole 233 that communicates with the aforementioned shaft locking hole 231. The shaft rotation action mechanism 24 is provided in the aforementioned shaft rotation action mechanism mating hole 212 and cooperates with the aforementioned shaft rotation guide groove 232. The shaft locking mechanism 25 is provided in the aforementioned shaft locking mechanism receiving hole 213 and extends upward or exits downward from the aforementioned shaft locking hole 231. The shaft rotation unlocking mechanism 26 is provided in the aforementioned shaft rotation unlocking mechanism hole 233 and extends to the left or exits to the right from the aforementioned shaft locking hole 231. One end of the pressure roller 27 is fixed to the left end of the shaft 23, while the other end of the pressure roller 27 is a free end.

[0023] See you later Figure 2The aforementioned bushing transition connection mechanism 22 includes a first bushing fixing frame 221 and a second bushing fixing frame 222. The first and second bushing fixing frames 221 and 222 are symmetrical to each other and their upper parts are fixed to the downward side of the aforementioned traction connection frame 1. A first bushing fixing frame cavity 2211 is formed in the lower part of the first bushing fixing frame 221, and a second bushing fixing frame cavity 2221 is formed in the lower part of the second bushing fixing frame 222. The cavity walls of the first and second bushing fixing frames 2211 and 2221 are welded and fixed to the upward side surface of the bushing 21.

[0024] Depend on Figure 2 As shown, traction connecting frame 1 has traction connecting frame screw holes 11 at positions corresponding to the first bushing fixing frame 221 and the second bushing fixing frame 222. Traction connecting frame screws 111 are fitted into these screw holes 11. A first bushing fixing frame screw hole 2212 is located on the top of the first bushing fixing frame 221 at a position corresponding to the traction connecting frame screw hole 11. A second bushing fixing frame screw hole 2222 is located on the top of the second bushing fixing frame 222 at a position corresponding to the traction connecting frame screw hole 11. The first and second bushing fixing frames 221 and 222 are fixed to the traction connecting frame 1 by screwing the traction connecting frame screws 111 into the first and second bushing fixing frame screw holes 2212 and 2222, respectively. Furthermore, the screw limiting nut screwed onto the end of the traction connecting frame screw 111 limits the traction connecting frame screw 111 to prevent loosening or even separation between the traction connecting frame 1 and the first and second fixing frames 221 and 222 of the bushing.

[0025] Please stay tuned. Figure 2The aforementioned shaft rotation mechanism mating hole 212 is an internally threaded hole; the aforementioned shaft rotation mechanism 24 includes a shaft rotation drive post 241 and an oil nozzle 242. The shaft rotation drive post 241 is disposed inside the shaft rotation mechanism mating hole 212, and an external thread is formed on the outer wall of the shaft rotation drive post 241. The external thread of the shaft rotation drive post is threadedly engaged with the shaft rotation mechanism mating hole 212, and a shaft rotation guide groove mating head 2411 extends from the lower end of the shaft rotation drive post 241, which probes into the aforementioned shaft rotation guide groove. The shaft rotation drive column 241 is engaged with the middle part of the aforementioned shaft 23 within 232. The oil injection nozzle 242 is threadedly engaged with the aforementioned shaft rotation mechanism engagement hole 212 at a position corresponding to the upper part of the shaft rotation drive column 241. The upper end of the oil injection nozzle 242 protrudes from the upper surface of the aforementioned bushing 21. A lubricating oil inlet hole 2421 is provided at the center of the oil injection nozzle 242. The lubricating oil is led through the lubricating oil inlet hole 2421 into the drive column oil guide groove 2412, which is longitudinally formed on the shaft rotation drive column 241 in a spaced manner, and then led from the drive column oil guide groove 2412 into the aforementioned shaft rotation guide groove 232.

[0026] Depend on Figure 2 As shown, the middle part of the aforementioned shaft 23 is supported on a left support sleeve 234 at the position corresponding to the left end opening of the aforementioned bushing hole 211, while the middle part of the shaft 23 is supported on a right support sleeve 235 at the position corresponding to the right end opening of the aforementioned bushing hole 211. The left and right support sleeves 234 and 235 are fixed to the hole wall of the aforementioned bushing hole 211, and the shaft 23 and the left and right support sleeves 234 and 235 form a sliding pair that slides left and right.

[0027] In the middle of the aforementioned shaft 23, the outer diameter of the area having the aforementioned shaft locking hole 231 and shaft rotation guide groove 232 is larger than the outer diameter of other parts of the shaft 23, and the aforementioned shaft rotation guide groove 232 is a spiral segment (similar to this groove shape is also referred to as an Archimedes spiral groove in the industry).

[0028] Please see Figure 3 And combined Figure 2The aforementioned shaft locking mechanism 25 includes a top cap 251, a top cap sleeve 252, a limiting block 253, a top cap return spring 254, and a plug 255. The plug 255 is threadedly fixed to the lower part of the aforementioned shaft locking mechanism receiving hole 213. The lower end of the top cap return spring 254 is supported on the plug 255, while the upper end of the top cap return spring 254 is supported on the bottom of the limiting block 253. The limiting block 253 is located vertically between the shaft locking mechanism receiving hole 213 and the shaft locking hole 231. The top cap sleeve 252 is sleeved on the top cap 251. The upper end of the top cap 251 extends into the aforementioned shaft locking hole 231, while the lower end contacts the upper surface of the limiting block 253.

[0029] See also Figure 2 and Figure 3 The aforementioned shaft rotation unlocking mechanism 26 includes a push rod 261, a push rod return spring 262, and a push rod plug 263. The push rod 261 is movably disposed in the aforementioned shaft rotation unlocking mechanism hole 233. The push rod return spring 262 is sleeved on the push rod 261, and the left end of the push rod return spring 262 is supported on the push rod return spring support step 2331 in the shaft rotation unlocking mechanism hole 233, while the right end of the push rod return spring 262 is supported on the push rod return spring support seat 2611 formed on the push rod 261. The right end of the push rod 261 extends to the right side of the push rod plug 263, and the push rod plug 263 is fixed to the right end of the aforementioned shaft 23.

[0030] The left end of the aforementioned push rod 261 forms a truncated cone 2612. A push rod plug mating thread 2332 is formed around the wall of the aforementioned shaft rotation unlocking mechanism hole 233 at the right end of the aforementioned shaft rotation unlocking mechanism hole 233. An external push rod thread 2631 is formed on the outer wall of the left end of the aforementioned push rod plug 263. A central hole 2632 for the push rod plug 263, extending from the left end to the right end, is opened at the axial center of the push rod plug 263. The aforementioned external push rod thread 2631 and the push rod plug mating thread 2332 are threadedly engaged. The left end of the aforementioned push rod plug 263... The end face corresponds to the right side face of the aforementioned push rod return spring support 2611. When the right end face of the push rod 261, which extends to the right end of the push rod plug 263 through the central hole 2632 of the aforementioned push rod plug, is impacted, the aforementioned push rod 261 shifts to the left and the aforementioned truncated cone 2612 enters the aforementioned shaft locking hole 231, forcing the aforementioned shaft locking mechanism 25 to retract from the shaft locking hole 231 and release the lock on the shaft 23. When the truncated cone 2612 at the left end of the aforementioned push rod 261 shifts to the right and retracts from the aforementioned shaft locking hole 231, the aforementioned shaft locking mechanism 25 returns to the locked state on the shaft 23.

[0031] A pressure roller fixing hole 236 is provided at the left end of the aforementioned shaft 23. A pressure roller fastener hole 271 is provided at one end of the aforementioned pressure roller 27 at the position corresponding to the pressure roller fixing hole 236 for fixing one end of the pressure roller 27 to the left end of the shaft 23 by fasteners. The left end of the aforementioned shaft 23 extends to the left side of the pressure roller 27 to form a shaft left impact part 237.

[0032] The outer diameter of the middle part of the aforementioned shaft 23 is greater than the outer diameter of the right end of the shaft 23, while the outer diameter of the right end of the shaft 23 is greater than the outer diameter of the left end of the shaft 23.

[0033] As mentioned above, this invention is connected to the hose-laying mechanism of an automatic fire hose laying fire truck in use. The applicant also mentioned three authorized invention patents above, where the hose-laying mechanism of the automatic fire hose laying fire truck is installed on the hose storage compartment frame of the fire truck. Taking ZL201410012525.7 (authorization announcement number CN103751931B) as an example, it can be seen that the aforementioned traction connecting frame 1 of this invention and the pair of guide mechanisms 2, each composed of a bushing transition connecting mechanism 22, a bushing 21, and a shaft body 23, etc., mounted on it, have a trolley effect.

[0034] Please see Figure 4 And combined Figures 1 to 3 Before the tape-laying mechanism, which has been mentioned and explained multiple times above, begins to operate, a force is first applied to the right end of the top rod 261, causing it to shift to the left. The top rod return spring 262 is compressed. As the top rod 261 moves to the left, its left-end truncated cone 2612 enters the aforementioned shaft locking hole 231, forcing the top cap 251 of the shaft locking mechanism 25's structural system to shift downwards. That is, it moves towards the shaft locking mechanism receiving hole 213 under the resistance of the top cap return spring 254, thus retracting from the shaft locking hole 231 and releasing the shaft locking mechanism 25 from the shaft 23. In this state, the tape-laying mechanism drives the traction connecting frame 1 and a pair of guide belt mechanisms 2 to move back and forth. Specifically, the shaft rotation guide groove mating head 2411 of the shaft rotation driving column 241 of the shaft rotation action mechanism 24's structural system acts on the shaft rotation guide groove 232, causing the shaft 23 to rotate. Until the shaft rotation guide groove mating head 2411 reaches the shaft rotation guide groove 232 and is... Figure 2The schematic diagram shows the end point 2321 of the shaft rotation guide groove. At this point, one laying stroke of the fire hose is completed, and the reverse laying begins to form multiple S-shaped overlapping states (see CN103751931B for details). Since the aforementioned shaft rotation guide groove fitting head 2411 reaches the end point 2321 of the shaft rotation guide groove, the shaft 23 has essentially rotated 90°, thus causing the shaft 23 to... Figure 2 The state shown has changed from Figure 4 As shown, the pressure roller 27 moves from... Figure 2 The horizontal state shown (i.e., the pressure belt state) has changed from... Figure 4 The shown release state is the state of releasing the fire hose. Of course, when the aforementioned hose-laying mechanism reverses its action, causing the traction connecting frame 1 and the pair of guide hose mechanisms 2 to move to the left, the shaft rotation guide groove mating head 2411 of the aforementioned shaft rotation action mechanism 24 acts on the shaft rotation guide groove 232, forcing the shaft 23 to rotate in the opposite direction to the aforementioned rotation. The aforementioned shaft rotation guide groove mating head 2411 reaches the other end of the shaft rotation guide groove 232 relative to the aforementioned shaft rotation guide groove end point 2321, that is, causing the shaft 23 to rotate 90° in the opposite direction to the aforementioned rotation, thus causing the... Figure 4 The pressure roller 27 shown is from Figure 4 The state (vertical downward state) becomes Figure 2 The indicated pressure state (horizontal state) is shown. This process is repeated, and the hose is managed by the hose-laying mechanism of the automatic fire hose laying vehicle. When locking the shaft 23, a certain impact force is applied to the left-end impact part 237 of the aforementioned shaft, i.e., striking the left-end impact part 237 of the shaft once. The shaft 23 shifts to the right, causing the top rod 261 to shift to the right. Under the release force of the top rod return spring 262, the cone-shaped truncated cone 2612 at the left end of the top rod 261 releases its control over the top cap 251, i.e., it exits to the right from the shaft locking hole 231. At this time, under the restoring force of the top cap return spring 254, the limiting block 253 moves upward into the shaft locking hole 231, thereby locking the shaft 23.

[0035] The applicant should clarify that the reciprocating alternating motion structure of the traction connecting frame 1 and the pair of guide belt mechanisms 2 involved in this invention is not absolutely limited to the structure disclosed in CN103751931B. Other forms, such as the many methods described in the specification of CN207898792U, can also be used.

[0036] In summary, the technical solution provided by this invention makes up for the shortcomings of the prior art, successfully completes the invention task, and accurately realizes the technical effects described by the applicant in the above technical effects column.

Claims

1. A fire hose management device, comprising a traction connecting frame (1), which is connected to the hose laying mechanism of an automatic fire hose laying fire truck in use; a pair of guide mechanisms (2), which are fixed to the downward-facing side of the traction connecting frame (1) in a corresponding manner; characterized in that: Each of the pair of guide belt mechanisms (2) includes a bushing (21), a bushing transition connection mechanism (22), a shaft (23), a shaft rotation mechanism (24), a shaft locking mechanism (25), a shaft rotation unlocking mechanism (26), and a pressure roller (27). A bushing hole (211) extending from the left end to the right end of the bushing (21) is provided at the center of the bushing (21) along its length direction, and a bushing hole is provided above the middle of the bushing (21) along its length direction. (211) A shaft rotation mechanism mating hole (212) is provided. A shaft locking mechanism receiving hole (213) communicating with the shaft sleeve hole (211) is provided below the middle part of the shaft sleeve (21) in the length direction. The shaft sleeve transition connection mechanism (22) is fixed between the traction connection frame (1) and the opposite side of the shaft sleeve (21). The middle part of the shaft (23) in the length direction is located in the shaft sleeve hole (211) and a shaft locking mechanism (25) is provided at the position corresponding to the shaft locking mechanism (25). A shaft locking hole (231) is provided, and a shaft rotation guide groove (232) is provided on the outer side of the shaft (23). The left end of the shaft (23) extends to the outside of the bushing hole (211), and the right end of the shaft (23) also extends to the outside of the bushing hole (211) and is axially provided with a shaft rotation unlocking mechanism hole (233) communicating with the shaft locking hole (231). The shaft rotation action mechanism (24) is provided in the shaft rotation action mechanism mating hole (212) and is connected to the shaft rotation mechanism. The shaft locking mechanism (25) is located in the shaft locking mechanism receiving hole (213) and extends upward or downward out of the shaft locking hole (231). The shaft rotation unlocking mechanism (26) is located in the shaft rotation unlocking mechanism hole (233) and extends to the left or out of the shaft locking hole (231). One end of the pressure roller (27) is fixed to the left end of the shaft (23), while the other end of the pressure roller (27) is a free end.

2. The fire hose handling device according to claim 1, characterized in that: The bushing transition connection mechanism (22) includes a first bushing fixing frame (221) and a second bushing fixing frame (222). The first and second bushing fixing frames (221, 222) are corresponding to each other on the left and right, and the upper part of each is fixed to the downward side of the traction connecting frame (1). A first bushing fixing frame cavity (2211) is formed in the lower part of the first bushing fixing frame (221), and a second bushing fixing frame cavity (2221) is formed in the lower part of the second bushing fixing frame (222). The cavity walls of the first and second bushing fixing frames (2211, 2221) are welded and fixed to the upward side surface of the bushing (21).

3. The fire hose handling device according to claim 1, characterized in that: The shaft rotation mechanism mating hole (212) is an internally threaded hole; the shaft rotation mechanism (24) includes a shaft rotation drive post (241) and an oil injection nozzle (242). The shaft rotation drive post (241) is disposed in the shaft rotation mechanism mating hole (212). An external thread of the shaft rotation drive post (241) is formed on the outer wall of the shaft rotation drive post (241). The external thread of the shaft rotation drive post is threadedly engaged with the shaft rotation mechanism mating hole (212). A shaft rotation guide groove mating head (2411) extends from the lower end of the shaft rotation drive post (241), and the shaft rotation guide groove mating head (2411) is inserted into the shaft rotation guide groove (232). The shaft rotation drive column (241) is engaged with the middle part of the shaft (23). The oil injection nozzle (242) is threaded into the shaft rotation mechanism engagement hole (212) at a position above the shaft rotation drive column (241). The upper end of the oil injection nozzle (242) protrudes from the upper surface of the bushing (21). A lubricating oil inlet hole (2421) is opened at the center of the oil injection nozzle (242). The lubricating oil is led through the lubricating oil inlet hole (2421) into the drive column oil guide groove (2412) formed longitudinally on the shaft rotation drive column (241) in a spaced state, and then led from the drive column oil guide groove (2412) into the shaft rotation guide groove (232).

4. The fire hose handling device according to claim 1, characterized in that: The middle part of the shaft (23) is supported on a left support sleeve (234) at the position corresponding to the left end opening of the bushing hole (211), while the middle part of the shaft (23) is supported on a right support sleeve (235) at the position corresponding to the right end opening of the bushing hole (211). The left and right support sleeves (234, 235) are fixed to the hole wall of the bushing hole (211), and the shaft (23) and the left and right support sleeves (234, 235) form a sliding pair that slides left and right.

5. The fire hose handling device according to claim 1, characterized in that: In the middle of the shaft (23), the outer diameter of the area having the shaft locking hole (231) and the shaft rotation guide groove (232) is larger than the outer diameter of other parts of the shaft (23), and the shaft rotation guide groove (232) is a spiral segment.

6. The fire hose handling device according to claim 1, characterized in that: The shaft locking mechanism (25) includes a top cap (251), a top cap sleeve (252), a limiting block (253), a top cap return spring (254), and a plug (255). The plug (255) is threadedly fixed to the lower part of the shaft locking mechanism receiving hole (213). The lower end of the top cap return spring (254) is supported on the plug (255), while the upper end of the top cap return spring (254) is supported on the bottom of the limiting block (253). The limiting block (253) floats up and down between the shaft locking mechanism receiving hole (213) and the shaft locking hole (231). The top cap sleeve (252) is fitted on the top cap (251). The upper end of the top cap (251) extends into the shaft locking hole (231), while the lower end contacts the upper surface of the limiting block (253).

7. The fire hose handling device according to claim 1, characterized in that: The shaft rotation unlocking mechanism (26) includes a push rod (261), a push rod return spring (262), and a push rod plug (263). The push rod (261) is movably disposed in the shaft rotation unlocking mechanism hole (233). The push rod return spring (262) is sleeved on the push rod (261), and the left end of the push rod return spring (262) is supported on the push rod return spring support step (2331) in the shaft rotation unlocking mechanism hole (233), while the right end of the push rod return spring (262) is supported on the push rod return spring support seat (2611) formed on the push rod (261). The right end of the push rod (261) extends to the right side of the push rod plug (263), and the push rod plug (263) is fixed to the right end of the shaft (23).

8. The fire hose handling device according to claim 7, characterized in that: The left end of the push rod (261) forms a frustum (2612). A push rod plug mating thread (2332) is formed around the wall of the shaft rotation unlocking mechanism hole (233) at the right end of the hole. An external push rod thread (2631) is formed on the outer wall of the left end of the push rod plug (263). A central hole (2632) for the push rod plug (263) is formed at the axial center of the push rod plug (263), extending from the left end to the right end. The external push rod thread (2631) and the mating thread (2332) are threadedly engaged. The left end face of the push rod plug (263)... Corresponding to the right side of the push rod return spring support (2611), when the right end face of the push rod (261), which extends through the central hole (2632) of the push rod plug to the right end of the push rod plug (263), is struck, the push rod (261) moves to the left and the truncated cone (2612) enters the shaft locking hole (231), forcing the shaft locking mechanism (25) to retract from the shaft locking hole (231) and release the lock on the shaft (23). When the truncated cone (2612) at the left end of the push rod (261) moves to the right and retracts from the shaft locking hole (231), the shaft locking mechanism (25) returns to the locked state on the shaft (23).

9. The fire hose handling device according to claim 1, characterized in that: A pressure roller fixing hole (236) is provided at the left end of the shaft (23). A pressure roller fastener hole (271) for fixing to the left end of the shaft (23) is provided at one end of the pressure roller (27) at the position corresponding to the pressure roller fixing hole (236). The pressure roller (27) is fixed to the left end of the shaft (23) at the position corresponding to the pressure roller fixing hole (236) by the fastener. The left end of the shaft (23) extends to the left side of the pressure roller (27) to form a shaft left impact part (237).

10. The fire hose handling device according to any one of claims 1 to 9, characterized in that: The outer diameter of the middle part of the shaft (23) is greater than the outer diameter of the right end of the shaft (23), while the outer diameter of the right end of the shaft (23) is greater than the outer diameter of the left end of the shaft (23).

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